/* roulang page: index */
:root{
  --bg:#070B12;
  --surface:#0D1622;
  --surface-2:#111D2C;
  --primary:#11C7D9;
  --primary-deep:#0A9DB3;
  --accent:#EDB84B;
  --danger:#E0535C;
  --text:#EAF2F8;
  --text-muted:rgba(234,242,248,.62);
  --text-soft:rgba(234,242,248,.38);
  --border:rgba(255,255,255,.12);
  --border-soft:rgba(255,255,255,.07);
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-soft:0 16px 40px rgba(0,0,0,.25);
  --shadow-glow:0 0 0 1px rgba(17,199,217,.12),0 16px 50px rgba(0,0,0,.34);
  --space-section:104px;
  --font-main:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,-apple-system,Roboto,Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-main);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,box-shadow .2s ease,opacity .2s ease}
button,input,select,textarea{font-family:inherit;font-size:inherit;line-height:inherit}
button{cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd{margin:0}
:focus-visible{outline:2px solid rgba(17,199,217,.7);outline-offset:3px;border-radius:4px}

.grid-container{width:100%;max-width:1312px;margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px}
.grid-x{margin-left:-12px;margin-right:-12px;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-flow:row wrap;-ms-flex-flow:row wrap;flex-flow:row wrap}
.grid-x>.cell{padding-left:12px;padding-right:12px}
#wrapper{position:relative;z-index:2}

/* 导航 */
.site-header{
  position:fixed;
  top:0;left:0;
  width:100%;
  z-index:1000;
  height:72px;
  background:rgba(7,11,18,.72);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  backdrop-filter:blur(16px) saturate(120%);
  transition:background .35s ease,border-color .35s ease,box-shadow .35s ease;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(7,11,18,.93);
  border-bottom-color:rgba(17,199,217,.22);
  box-shadow:0 8px 30px rgba(0,0,0,.2);
}
.header-inner{
  height:72px;
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-flex-flow:row nowrap;-ms-flex-flow:row nowrap;flex-flow:row nowrap;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  gap:22px;
  padding:0 8px;
}
.site-logo{
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-flex-shrink:0;-ms-flex-negative:0;flex-shrink:0;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  gap:10px;
  margin-right:5px;
}
.brand-mark{
  width:36px;height:36px;
  border-radius:11px;
  background:linear-gradient(135deg,rgba(17,199,217,.25),rgba(17,199,217,.02));
  border:1px solid rgba(17,199,217,.45);
  color:var(--primary);
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  -webkit-box-pack:center;-webkit-justify-content:center;-ms-flex-pack:center;justify-content:center;
  font-size:18px;
  font-weight:800;
  letter-spacing:-.05em;
  position:relative;
  box-shadow:0 0 24px rgba(17,199,217,.12);
}
.brand-mark::after{
  content:"";position:absolute;inset:0;border-radius:inherit;
  box-shadow:inset 0 0 16px rgba(17,199,217,.15);
}
.brand-text{
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;
  line-height:1.15;
}
.brand-word{
  font-weight:800;
  font-size:18px;
  letter-spacing:.01em;
  color:var(--text);
  white-space:nowrap;
  font-family:var(--font-main);
}
.brand-sub{
  font-size:11px;
  color:var(--primary);
  margin-top:2px;
  font-weight:600;
  letter-spacing:.08em;
}
.main-nav{
  display:none;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  -webkit-box-flex:1;-webkit-flex:1 1 auto;-ms-flex:1 1 auto;flex:1 1 auto;
  gap:2px;
  margin-left:10px;
}
.main-nav .nav-link{
  position:relative;
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  height:40px;
  padding:0 14px;
  border-radius:9px;
  color:var(--text-muted);
  font-size:15px;
  font-weight:500;
  white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.main-nav .nav-link:hover{
  color:#fff;
  background:rgba(255,255,255,.04);
}
.main-nav .nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
  background:linear-gradient(92deg,var(--primary) 0%,rgba(17,199,217,.3) 60%,transparent 100%);
  -webkit-clip-path:polygon(0 0,100% 0,calc(100% - 6px) 100%,6px 100%);
  clip-path:polygon(0 0,100% 0,calc(100% - 6px) 100%,6px 100%);
  opacity:0;
  -webkit-transform:translateY(4px);transform:translateY(4px);
  transition:opacity .2s ease,-webkit-transform .2s ease;transition:opacity .2s ease,transform .2s ease;
}
.main-nav .nav-link:hover::after,.main-nav .nav-link.is-active::after{
  opacity:1;
  -webkit-transform:translateY(0);transform:translateY(0);
}
.main-nav .nav-link.is-active{
  color:#fff;
  background:rgba(17,199,217,.06);
}
.header-actions{
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-flex-shrink:0;-ms-flex-negative:0;flex-shrink:0;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  gap:12px;
  margin-left:auto;
}
.cmd-search{
  position:relative;
  display:none;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  color:var(--text-muted);
}
.cmd-box{
  width:240px;
  height:40px;
  border-radius:10px;
  background:rgba(255,255,255,.06);
  border:1px solid var(--border-soft);
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  gap:10px;
  padding:0 12px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.cmd-box i{color:var(--text-soft);font-size:13px}
.cmd-search input{
  width:100%;
  border:0;outline:0;
  background:transparent;
  color:var(--text);
  font-size:14px;
}
.cmd-search input::-webkit-input-placeholder{color:var(--text-soft)}
.cmd-search input::placeholder{color:var(--text-soft)}
.cmd-search.open .cmd-box{
  border-color:rgba(17,199,217,.5);
  background:rgba(7,11,18,.92);
  box-shadow:inset 0 0 0 1px rgba(17,199,217,.35),0 12px 30px rgba(0,0,0,.3);
}
.cmd-panel{
  position:absolute;
  top:calc(100% + 10px);
  right:0;
  width:280px;
  padding:8px;
  border-radius:16px;
  background:rgba(16,27,40,.92);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border:1px solid rgba(17,199,217,.18);
  box-shadow:var(--shadow-soft);
  opacity:0;
  -webkit-transform:translateY(-8px) scale(.98);transform:translateY(-8px) scale(.98);
  pointer-events:none;
  transition:opacity .2s ease,-webkit-transform .2s ease;transition:opacity .2s ease,transform .2s ease;
}
.cmd-search.open .cmd-panel{
  opacity:1;
  pointer-events:auto;
  -webkit-transform:translateY(0) scale(1);transform:translateY(0) scale(1);
}
.cmd-panel-title{
  padding:10px 10px 5px;font-size:12px;letter-spacing:.08em;
  color:var(--text-soft);
  text-transform:uppercase;
}
.cmd-panel a{
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  gap:10px;
  min-height:44px;
  padding:0 12px;
  border-radius:10px;
  color:var(--text-muted);
  font-size:14px;
}
.cmd-panel a:hover{color:var(--text);background:rgba(17,199,217,.08)}
.cmd-panel a i{width:18px;color:var(--primary);font-size:13px}
.cmd-panel a.fa-circle{font-size:5px}
.quick-btn{
  width:40px;height:40px;
  display:none;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  -webkit-box-pack:center;-webkit-justify-content:center;-ms-flex-pack:center;justify-content:center;
  border-radius:10px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--border-soft);
  color:var(--text-muted);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.quick-btn:hover{border-color:rgba(17,199,217,.4);color:var(--primary)}
.btn-primary{
  display:-webkit-inline-box;display:-webkit-inline-flex;display:-ms-inline-flexbox;display:inline-flex;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  -webkit-box-pack:center;-webkit-justify-content:center;-ms-flex-pack:center;justify-content:center;
  gap:8px;
  height:42px;
  padding:0 20px;
  border-radius:10px;
  border:0;
  color:#04161A;
  font-weight:800;
  font-size:14px;
  background:linear-gradient(135deg,#16D5E9,#11C7D9 70%,#0AA6B8);
  box-shadow:0 0 0 1px rgba(17,199,217,.25),0 8px 22px rgba(17,199,217,.24);
  position:relative;
  overflow:hidden;
  white-space:nowrap;
  transition:background .25s ease,box-shadow .25s ease,-webkit-transform .2s ease;transition:transform .2s ease,background .25s ease,box-shadow .25s ease;
}
.btn-primary::before{
  content:"";position:absolute;top:0;left:-80%;width:40%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.35),transparent);
  -webkit-transform:skewX(-25deg);transform:skewX(-25deg);
  transition:left .45s ease;
}
.btn-primary:hover{
  -webkit-transform:translateY(-2px);transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(17,199,217,.45),0 12px 28px rgba(17,199,217,.34);
  background:linear-gradient(135deg,#1FDDEF,#11C7D9 70%,#0DBCD0);
  color:#04161A;
}
.btn-primary:hover::before{left:120%}
.btn-primary:active{-webkit-transform:translateY(1px);transform:translateY(1px);box-shadow:0 0 0 1px rgba(17,199,217,.5),0 4px 14px rgba(17,199,217,.3)}
.btn-glass{
  display:-webkit-inline-box;display:-webkit-inline-flex;display:-ms-inline-flexbox;display:inline-flex;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  -webkit-box-pack:center;-webkit-justify-content:center;-ms-flex-pack:center;justify-content:center;
  gap:8px;
  height:42px;
  padding:0 20px;
  border-radius:10px;
  border:1px solid rgba(17,199,217,.35);
  color:#BFF6FA;
  background:rgba(17,199,217,.06);
  font-weight:700;
  font-size:14px;
  transition:background .2s ease,border-color .2s ease,color .2s ease,-webkit-transform .2s ease;transition:transform .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-glass:hover{
  background:rgba(17,199,217,.14);
  border-color:rgba(17,199,217,.55);
  color:#fff;
  -webkit-transform:translateY(-2px);transform:translateY(-2px);
}
.btn-glass:active{-webkit-transform:translateY(0);transform:translateY(0)}
.nav-burger{
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;
  -webkit-box-pack:center;-webkit-justify-content:center;-ms-flex-pack:center;justify-content:center;
  gap:5px;
  width:42px;height:42px;
  padding:0 11px;
  background:none;
  border:1px solid var(--border-soft);
  border-radius:10px;
}
.nav-burger span{display:block;height:2px;width:100%;background:var(--text);border-radius:999px;transition:background .2s ease}
.nav-burger:hover span{background:var(--primary)}
.mobile-drawer{
  position:fixed;
  left:0;right:0;top:72px;bottom:0;
  z-index:999;
  background:rgba(7,11,18,.97);
  -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
  padding:30px 26px 40px;
  overflow-y:auto;
  opacity:0;
  pointer-events:none;
  -webkit-transform:translateY(-10px);transform:translateY(-10px);
  transition:opacity .25s ease,-webkit-transform .25s ease;transition:opacity .25s ease,transform .25s ease;
}
.mobile-drawer.open{
  opacity:1;
  pointer-events:auto;
  -webkit-transform:translateY(0);transform:translateY(0);
}
.mobile-drawer .mobile-page-name{
  display:block;
  margin-bottom:24px;
  padding-bottom:18px;
  border-bottom:1px solid rgba(255,255,255,.08);
  font-size:12px;
  color:var(--primary);
  letter-spacing:.2em;
  text-transform:uppercase;
}
.mobile-drawer .mobile-nav a{
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  gap:12px;
  padding:17px 4px;
  font-size:18px;
  font-weight:700;
  color:var(--text);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.mobile-drawer .mobile-nav a:hover{color:var(--primary)}
.mobile-drawer .mobile-nav a i{color:var(--primary-6);opacity:.55;font-size:14px;width:20px}
.mobile-drawer .drawer-code{color:var(--text-soft);font-size:13px;margin-top:24px;padding-left:4px}

/* 通用段 */
.section{
  position:relative;
  padding-top:var(--space-section);
  padding-bottom:var(--space-section);
}
.section-label{
  display:-webkit-inline-box;display:-webkit-inline-flex;display:-ms-inline-flexbox;display:inline-flex;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  gap:8px;
  padding:0 12px;
  height:26px;
  border-radius:999px;
  background:rgba(17,199,217,.08);
  border:1px solid rgba(17,199,217,.25);
  color:var(--primary);
  font-size:12px;
  font-weight:700;
  letter-spacing:.05em;
}
.section-label::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(17,199,217,.8)}
.section-head{
  max-width:980px;
  margin:0 0 10px;
}
.section-head h2{
  font-size:32px;line-height:1.22;
  font-weight:800;
  color:var(--text);
  letter-spacing:-.01em;
  margin-top:18px;
}
.section-head p{
  margin-top:14px;
  color:var(--text-muted);
  max-width:780px;
  font-size:16px;
}
.text-arrow{
  display:-webkit-inline-box;display:-webkit-inline-flex;display:-ms-inline-flexbox;display:inline-flex;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  gap:8px;
  color:var(--primary);
  font-size:14px;
  font-weight:700;
}
.text-arrow i{transition:-webkit-transform .2s ease;transition:transform .2s ease}
.text-arrow:hover i{-webkit-transform:translateX(4px);transform:translateX(4px)}
.tag-chip{
  display:-webkit-inline-flex;display:-ms-inline-flexbox;display:inline-flex;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  gap:5px;
  height:24px;
  padding:0 11px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  background:rgba(17,199,217,.09);
  color:var(--primary);
  border:1px solid rgba(17,199,217,.15);
}
.tag-gold{
  background:rgba(237,184,75,.1);
  color:var(--accent);
  border-color:rgba(237,184,75,.22);
}
.glass-card{
  background:rgba(255,255,255,.04);
  border:1px solid var(--border-soft);
  border-top-color:rgba(255,255,255,.14);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-soft);
  position:relative;
  transition:border-color .25s ease,box-shadow .25s ease,-webkit-transform .3s ease;transition:border-color .25s ease,box-shadow .25s ease,transform .3s ease;
}
.glass-card:hover{
  border-color:rgba(17,199,217,.28);
  box-shadow:var(--shadow-glow);
}

/* HERO */
.hero{
  position:relative;
  padding:158px 0 96px;
  overflow:hidden;
}
.hero-bg{
  position:absolute;inset:-80px 0 0 0;
  pointer-events:none;
  z-index:0;
  background-image:url("/assets/images/backpic/back-1.png"),-webkit-radial-gradient(circle at 50% 0%,rgba(17,199,217,.09),transparent 55%);
  background-image:url("/assets/images/backpic/back-1.png"),radial-gradient(circle at 50% 0%,rgba(17,199,217,.09),transparent 55%);
  background-size:auto,auto,cover;
  background-repeat:repeat,no-repeat;
  opacity:.28;
  -webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.85),transparent 82%);
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.85),transparent 82%);
}
.hero .grid-container{position:relative;z-index:2}
.hero-copy{padding-right:24px}
.hero-eyebrow{
  display:-webkit-inline-box;display:-webkit-inline-flex;display:-ms-inline-flexbox;display:inline-flex;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  gap:8px;
  padding:5px 13px 5px 8px;
  border-radius:999px;
  background:rgba(17,199,217,.07);
  border:1px solid rgba(17,199,217,.22);
  font-size:13px;
  color:#BFF6FA;
  font-weight:600;
}
.hero-eyebrow i{
  width:26px;height:26px;
  border-radius:8px;
  background:rgba(17,199,217,.15);
  display:-webkit-inline-flex;display:-ms-inline-flexbox;display:inline-flex;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  -webkit-box-pack:center;-webkit-justify-content:center;-ms-flex-pack:center;justify-content:center;
  color:var(--primary);
}
.hero-title{
  font-size:clamp(40px,5.1vw,60px);
  line-height:1.06;
  letter-spacing:-.015em;
  font-weight:800;
  margin:27px 0 0;
  color:var(--text);
}
.hero-title .t-primary{color:var(--primary)}
.hero-title .t-gold{color:var(--accent)}
.hero-lead{
  margin-top:22px;
  font-size:22px;
  line-height:1.45;
  color:rgba(234,242,248,.88);
  font-weight:700;
  max-width:570px;
}
.hero-desc{
  margin-top:12px;
  color:var(--text-muted);
  max-width:560px;
  font-size:16px;
}
.hero-ctas{
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-flex-flow:row wrap;-ms-flex-flow:row wrap;flex-flow:row wrap;
  gap:14px;
  margin-top:32px;
}
.hero-note{
  margin-top:20px;
  font-size:13px;
  color:var(--text-soft);
}
.hero-note a{color:var(--primary);border-bottom:1px solid transparent}
.hero-note a:hover{border-bottom-color:var(--primary)}
.hero-visual{
  position:relative;
  padding-left:14px;
}
.hero-photo{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  aspect-ratio:4/5;
  background:#0D1622;
  border:1px solid rgba(255,255,255,.1);
  -webkit-clip-path:polygon(0 0,calc(100% - 30px) 0,100% 30px,100% 100%,30px 100%,0 calc(100% - 30px));
  clip-path:polygon(0 0,calc(100% - 30px) 0,100% 30px,100% 100%,30px 100%,0 calc(100% - 30px));
  box-shadow:0 24px 60px rgba(0,0,0,.32),0 0 0 1px rgba(17,199,217,.12);
}
.hero-photo img{
  width:100%;height:100%;
  -o-object-fit:cover;object-fit:cover;
  transition:-webkit-transform .6s cubic-bezier(.2,.8,.2,1);transition:transform .6s cubic-bezier(.2,.8,.2,1);
}
.hero-photo:hover img{-webkit-transform:scale(1.025);transform:scale(1.025)}
.hero-photo::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(7,11,18,.2) 0%,transparent 40%,rgba(7,11,18,.55) 100%);
}
.hero-photo-caption{
  position:absolute;
  left:0;right:0;bottom:0;
  z-index:2;
  padding:24px 22px;
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-box-pack:justify;-webkit-justify-content:space-between;-ms-flex-pack:justify;justify-content:space-between;
  -webkit-box-align:end;-webkit-align-items:flex-end;-ms-flex-align:end;align-items:flex-end;
}
.cap-go{
  color:#fff;
  background:rgba(7,11,18,.55);
  border:1px solid rgba(255,255,255,.16);
  border-radius:999px;
  height:30px;
  padding:0 13px;
  font-size:12px;
  display:-webkit-inline-flex;display:-ms-inline-flexbox;display:inline-flex;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  gap:5px;
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.hero-photo .float-tag{
  position:absolute;top:18px;right:26px;z-index:3;
  padding:9px 14px;
  border-radius:12px;
  background:rgba(7,11,18,.72);
  border:1px solid rgba(17,199,217,.3);
  color:var(--accent);
  font-size:13px;
  font-weight:800;
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  box-shadow:0 8px 22px rgba(0,0,0,.3);
  letter-spacing:.02em;
}
.hero-photo .float-tag::after{
  content:"";display:block;width:24px;height:2px;
  margin-top:9px;
  background:linear-gradient(90deg,var(--primary),transparent);
}

/* 痛点带 */
.pain-band{
  position:relative;
  padding:32px 0 4px;
  margin-top:-18px;
}
.pain-inner{
  border-top:1px solid var(--border-soft);
  border-bottom:1px solid var(--border-soft);
  padding:26px 4px;
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  -webkit-flex-flow:row wrap;-ms-flex-flow:row wrap;flex-flow:row wrap;
  gap:18px;
  color:var(--text-muted);
}
.pain-inner .pain-t{
  font-size:14px;
  font-weight:700;
  color:var(--text-soft);
  letter-spacing:.04em;
}
.pain-list{
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-flex-flow:row wrap;-ms-flex-flow:row wrap;flex-flow:row wrap;
  gap:16px 28px;
  -webkit-box-flex:1;-webkit-flex:1 1 auto;-ms-flex:1 1 auto;flex:1 1 auto;
}
.pain-list li::before{
  content:"\f00d";font-family:"Font Awesome 6 Free";font-weight:900;
  color:var(--text-soft);
  font-size:12px;
  margin-right:8px;
}
.pain-link{
  -webkit-flex-shrink:0;-ms-flex-negative:0;flex-shrink:0;
}
.pain-link a{
  display:-webkit-inline-box;display:-webkit-inline-flex;display:-ms-inline-flexbox;display:inline-flex;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  gap:7px;
  font-size:14px;
  color:var(--primary);
  font-weight:700;
}
.pain-link a:hover{text-decoration:underline}

/* 方案 */
.solution{padding-top:72px}
.solution .section-head{margin-bottom:42px}
.solution-grid{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-flow:column nowrap;-ms-flex-flow:column nowrap;flex-flow:column nowrap;gap:22px}
.solution-card{
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;
  padding:34px 30px 30px;
  border-radius:var(--radius-md);
  background:rgba(255,255,255,.04);
  border:1px solid var(--border-soft);
  border-top-color:rgba(255,255,255,.13);
  box-shadow:var(--shadow-soft);
  min-height:330px;
  position:relative;
  -webkit-transform:translateY(0);transform:translateY(0);
  transition:border-color .25s ease,-webkit-transform .3s ease;transition:border-color .25s ease,transform .3s ease;
}
.solution-card:hover{border-color:rgba(17,199,217,.22);-webkit-transform:translateY(-4px);transform:translateY(-4px)}
.solution-card.core{
  min-height:390px;
  background:linear-gradient(150deg,rgba(17,199,217,.1),rgba(255,255,255,.035) 55%,rgba(255,255,255,.02));
  border-color:rgba(17,199,217,.2);
}
.solution-icon{
  width:54px;height:54px;
  border-radius:16px;
  background:rgba(17,199,217,.1);
  border:1px solid rgba(17,199,217,.3);
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  -webkit-box-pack:center;-webkit-justify-content:center;-ms-flex-pack:center;justify-content:center;
  color:var(--primary);
  font-size:22px;
  margin-bottom:24px;
  box-shadow:0 0 22px rgba(17,199,217,.09);
}
.solution-card h3{font-size:22px;line-height:1.3;font-weight:800}
.solution-card>p{
  margin-top:12px;
  color:var(--text-muted);
  font-size:14px;
}
.solution-features{
  margin-top:24px;
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;
  gap:13px;
}
.solution-features li{
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-box-align:start;-webkit-align-items:flex-start;-ms-flex-align:start;align-items:flex-start;
  gap:10px;
  font-size:14px;
  color:rgba(234,242,248,.78);
}
.solution-features li i{margin-top:4px;color:var(--primary);font-size:11px;flex-shrink:0}
.solution-card .text-arrow{margin-top:auto;padding-top:26px}
@media (min-width:900px){
  .solution-grid{display:grid;grid-template-columns:1fr 1.45fr 1fr;gap:22px;-webkit-box-align:stretch;-ms-flex-align:stretch;align-items:stretch}
  .solution-card{height:auto}
  .solution-card.core{padding-top:44px;padding-bottom:38px}
}

/* 资讯 List */
.news-section{position:relative;background:linear-gradient(180deg,transparent,rgba(17,199,217,.035) 50%,transparent)}
.news-section .section-head{margin-bottom:42px}
.news-card{
  margin-bottom:24px;
  border-radius:var(--radius-md);
  background:rgba(255,255,255,.045);
  border:1px solid var(--border-soft);
  overflow:hidden;
  -webkit-transform:translateY(0);transform:translateY(0);
  transition:border-color .25s ease,-webkit-transform .25s ease,box-shadow .25s ease;
}
.news-card:hover{border-color:rgba(17,199,217,.22);-webkit-transform:translateY(-3px);transform:translateY(-3px);box-shadow:var(--shadow-glow)}
.news-cover{
  position:relative;
  height:182px;
  background-size:cover;
  background-position:center;
  background-color:var(--surface-2);
}
.news-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 20%,rgba(7,11,18,.65))}
.news-cat{
  position:absolute;top:13px;left:13px;
  z-index:2;
  height:26px;
  padding:0 11px;
  border-radius:8px;
  background:rgba(7,11,18,.75);
  border:1px solid rgba(17,199,217,.4);
  color:var(--primary);
  font-size:12px;
  font-weight:700;
  display:-webkit-inline-flex;display:-ms-inline-flexbox;display:inline-flex;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.news-cat.gold{color:var(--accent);border-color:rgba(237,184,75,.7)}
.news-body{padding:19px 20px 21px}
.news-time{
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  gap:7px;
  font-size:13px;
  color:var(--text-soft);
  letter-spacing:.02em;
  margin-bottom:8px;
}
.news-time i{font-size:11px;color:var(--primary)
}
.news-title{
  font-size:17px;
  line-height:1.45;
  font-weight:750;
  margin-bottom:8px;
}
.news-title a{display:block}
.news-title a:hover{color:var(--primary)}
.news-excerpt{
  color:var(--text-muted);
  font-size:13px;
  line-height:1.6;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card .text-arrow{margin-top:15px;font-size:13px}
.empty-list{
  border-radius:var(--radius-md);
  border:1px dashed rgba(255,255,255,.16);
  background:rgba(255,255,255,.025);
  padding:64px 16px;
  text-align:center;
  color:var(--text-muted);
}
.empty-list .empty-icon{
  width:56px;height:56px;
  margin:0 auto 14px;
  border-radius:16px;
  border:1px solid rgba(17,199,217,.25);
  background:rgba(17,199,217,.06);
  color:var(--primary);
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  -webkit-box-pack:center;-webkit-justify-content:center;-ms-flex-pack:center;justify-content:center;
  font-size:22px;
}
.empty-list p{font-size:15px}
.empty-list .btn-glass{margin-top:18px;height:38px}

/* 数据与成果 */
.metric-section{background:#070B12}
.data-rows{
  border-top:1px solid var(--border-soft);
  border-bottom:1px solid var(--border-soft);
  padding:36px 4px 28px;
  margin-bottom:62px;
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-flex-flow:row wrap;-ms-flex-flow:row wrap;flex-flow:row wrap;
  -webkit-box-pack:justify;-webkit-justify-content:space-between;-ms-flex-pack:justify;justify-content:space-between;
}
.data-item{
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;
  -webkit-box-align:start;-webkit-align-items:flex-start;-ms-flex-align:start;align-items:flex-start;
  gap:2px;
  min-width:160px;
  padding:0 12px;
}
.data-item strong{
  font-size:clamp(34px,4vw,54px);
  line-height:1;
  font-weight:800;
  color:var(--primary);
  letter-spacing:-.02em;
  font-family:var(--font-main);
}
.data-item strong em{font-style:normal;font-size:17px;color:var(--text);margin-left:4px;font-weight:600}
.data-item.gold strong{color:var(--accent)}
.data-item span{color:var(--text-muted);font-size:14px;margin-top:9px}
.result-head{margin-bottom:30px}
.result-wall{position:relative;}
.result-row{
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-flex-flow:row wrap;-ms-flex-flow:row wrap;flex-flow:row wrap;
  gap:22px;
  margin-bottom:22px;
}
.result-row.center>.result-tile:first-child{margin-left:auto}
.result-row.offset>.result-tile:nth-child(2){margin-right:auto}
.result-tile{
  -webkit-box-flex:1;-webkit-flex:1 1 260px;-ms-flex:1 1 260px;flex:1 1 260px;
  max-width:420px;
  border-radius:18px;
  overflow:hidden;
  position:relative;
  min-height:190px;
  background:var(--surface-2);
  border:1px solid var(--border-soft);
}
.result-tile img{width:100%;height:100%;-o-object-fit:cover;object-fit:cover;min-height:190px;filter:saturate(.88) contrast(.96)}
.result-tile .tile-bg{position:absolute;inset:0;background-size:cover;background-position:center}
.result-tile .tile-shade{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,18,.05),rgba(7,11,18,.9));
}
.result-tile .tile-meta{
  position:absolute;
  left:20px;right:20px;bottom:17px;
  z-index:2;
}
.result-tile .tile-meta span{
  display:block;
  font-size:15px;
  font-weight:800;
  color:#fff;
}
.result-tile .tile-meta small{color:rgba(255,255,255,.68);font-size:13px;margin-top:4px;display:block}

/* 证言 */
.quote-section{background:linear-gradient(180deg,transparent,rgba(17,199,217,.03) 50%,transparent)}
.quote-panel{
  border-radius:var(--radius-lg);
  padding:46px 38px;
  background:rgba(255,255,255,.037);
  border:1px solid var(--border-soft);
  box-shadow:var(--shadow-soft);
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;
}
.quote-main{
  -webkit-box-flex:1;-webkit-flex:1 1 450px;-ms-flex:1 1 450px;flex:1 1 450px;
  min-height:220px;
  position:relative;
}
.quote-mark{
  color:var(--primary);
  font-size:56px;
  line-height:.8;
  opacity:.6;
  display:block;
  height:40px;
  margin-bottom:12px;
}
.quote-main blockquote{
  font-size:24px;
  font-weight:700;
  line-height:1.5;
  color:rgba(234,242,248,.95);
  margin:0;
  max-width:560px;
  position:relative;
}
.quote-owner{
  margin-top:24px;
  color:var(--text-muted);
  font-size:14px;
}
.quote-owner b{color:var(--accent);font-weight:700}
.quote-list{
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;
  gap:4px;
  border-top:1px solid var(--border-soft);
  padding-top:16px;
}
.quote-person{
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  gap:14px;
  padding:12px 10px;
  border-radius:13px;
  background:transparent;
  border:1px solid transparent;
  width:100%;
  text-align:left;
  color:var(--text-muted);
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.quote-person:hover{background:rgba(255,255,255,.025);color:var(--text)}
.quote-person.active{
  background:rgba(17,199,217,.07);
  border-color:rgba(17,199,217,.22);
  color:#fff;
}
.quote-person .avatar{
  width:42px;height:42px;
  border-radius:13px;
  background:#111D2C;
  overflow:hidden;
  -webkit-flex-shrink:0;-ms-flex-negative:0;flex-shrink:0;
  border:1px solid rgba(17,199,217,.2);
}
.quote-person .avatar img{width:100%;height:100%;-o-object-fit:cover;object-fit:cover}
.quote-person strong{display:block;font-size:14px;font-weight:700}
.quote-person span{display:block;font-size:12px;color:var(--text-soft);margin-top:3px}
.quote-person.active span{color:var(--primary)}
@media (min-width:1024px){
  .quote-list{border-top:0;border-left:1px solid var(--border-soft);padding-top:4px;padding-left:6px}
}

/* 常见问题 */
.faq-section .container-small{max-width:780px;margin:0 auto}
.faq-section .section-head{max-width:780px;margin-left:auto;margin-right:auto}
.faq-section .section-head h2{font-size:30px}
.faq-list{margin-top:36px;max-width:800px;margin-left:auto;margin-right:auto}
.faq-item{
  border-bottom:1px solid rgba(17,199,217,.16);
  margin:0;
}
.faq-item:first-child{border-top:1px solid rgba(17,199,217,.18)}
.faq-item summary{
  list-style:none;
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-box-pack:justify;-webkit-justify-content:space-between;-ms-flex-pack:justify;justify-content:space-between;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  gap:24px;
  padding:24px 6px 22px 0;
  cursor:pointer;
  color:rgba(234,242,248,.86);
  font-size:18px;
  font-weight:750;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::marker{content:""}
.faq-item summary:hover{color:#fff}
.faq-item .faq-num{
  display:none;
  color:var(--primary);
  font-size:13px;
  font-weight:800;
  margin-right:12px;
  letter-spacing:.1em;
  flex-shrink:0;
}
.faq-item summary .q-wrap{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-align:baseline;-webkit-align-items:baseline;-ms-flex-align:baseline;align-items:baseline;gap:0}
.faq-item .faq-icon{
  position:relative;
  width:26px;height:26px;
  -webkit-flex-shrink:0;-ms-flex-negative:0;flex-shrink:0;
  border-radius:7px;
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  -webkit-box-pack:center;-webkit-justify-content:center;-ms-flex-pack:center;justify-content:center;
  background:rgba(17,199,217,.08);
  border:1px solid rgba(17,199,217,.2);
  color:var(--primary);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.faq-item .faq-icon::before,.faq-item .faq-icon::after{
  content:"";position:absolute;
  background:var(--primary);
  border-radius:99px;
  transition:opacity .2s ease,-webkit-transform .25s ease;transition:opacity .2s ease,transform .25s ease;
}
.faq-item .faq-icon::before{width:10px;height:2px}
.faq-item .faq-icon::after{width:2px;height:10px}
.faq-item summary:hover .faq-icon{background:rgba(17,199,217,.16);border-color:var(--primary)}
.faq-item[open] summary .faq-icon::before{-webkit-transform:rotate(90deg);transform:rotate(90deg);opacity:0}
.faq-item[open] summary .faq-icon::after{-webkit-transform:rotate(180deg);transform:rotate(180deg)}
.faq-item[open] summary{color:#fff}
.faq-item .faq-a{
  padding:0 10px 24px;
  color:var(--text-muted);
  font-size:15px;
  line-height:1.75;
  max-width:620px;
  margin-left:0;
}
.faq-item[open] .faq-a{
  animation:faqOpen .32s ease;
}
@keyframes faqOpen{
  from{opacity:0;-webkit-transform:translateY(-8px);transform:translateY(-8px)}
  to{opacity:1;-webkit-transform:translateY(0);transform:translateY(0)}
}

/* CTA */
.cta-zone{
  padding:72px 0 var(--space-section);
}
.cta-panel{
  border-radius:24px;
  overflow:hidden;
  position:relative;
  background:var(--surface);
  border:1px solid rgba(17,199,217,.25);
  padding:46px 40px;
  box-shadow:var(--shadow-glow);
}
.cta-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-3.png"),-webkit-radial-gradient(60% 0%,rgba(17,199,217,.28),transparent 55%);
  background-image:url("/assets/images/backpic/back-3.png"),radial-gradient(60% 0%,rgba(17,199,217,.28),transparent 55%);
  background-size:cover,cover;
  background-repeat:no-repeat,no-repeat;
  background-position:center,center;
  opacity:.48;
}
.cta-panel::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(7,11,18,.78),rgba(7,11,18,.3) 55%,rgba(7,11,18,.7));
}
.cta-copy,.cta-formbox{position:relative;z-index:2}
.cta-copy h2{
  font-size:28px;
  font-weight:800;
  line-height:1.28;
}
.cta-copy p{
  margin-top:10px;
  color:rgba(234,242,248,.77);
  font-size:15px;
  max-width:520px;
}
.cta-formbox{
  padding:22px;
  border-radius:18px;
  background:rgba(7,11,18,.58);
  border:1px solid rgba(255,255,255,.14);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.cta-formbox .form-title{
  font-size:15px;
  font-weight:800;
  margin-bottom:12px;
  color:#fff;
}
.cta-formbox input{
  height:44px;
  padding:0 15px;
  width:100%;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.06);
  color:var(--text);
  outline:none;
  -webkit-appearance:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.cta-formbox input:focus{
  border-color:rgba(17,199,217,.7);
  box-shadow:inset 0 0 0 2px rgba(17,199,217,.2);
}
.cta-formbox input::-webkit-input-placeholder{color:var(--text-soft)}
.cta-formbox button{
  width:100%;
  margin-top:12px;
}
.form-privacy{
  margin-top:10px;
  font-size:11px;
  color:var(--text-soft);
  letter-spacing:.01em;
}
.form-result{
  display:none;
  font-size:13px;
  color:var(--primary);
  margin-top:12px;
  background:rgba(17,199,217,.08);
  padding:8px 12px;
  border-radius:8px;
}
.form-result.show{display:block}

/* 页脚 */
.site-footer{
  background:#06090f;
  border-top:1px solid rgba(17,199,217,.12);
  padding:64px 0 36px;
}
.footer-brand .brand-tail{
  margin-top:17px;
  color:var(--text-muted);
  font-size:14px;
  max-width:380px;
  line-height:1.75;
}
.footer-heading{
  font-size:14px;
  font-weight:800;
  color:#fff;
  letter-spacing:.08em;
  margin-bottom:16px;
}
.footer-links{
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;
  gap:10px;
}
.footer-links a{
  display:-webkit-inline-box;display:-webkit-inline-flex;display:-ms-inline-flexbox;display:inline-flex;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  gap:8px;
  color:var(--text-muted);
  font-size:14px;
}
.footer-links a:hover{color:var(--primary);-webkit-transform:translateX(2px);transform:translateX(2px)}
.footer-links a i{font-size:6px;color:var(--primary-6)}
.footer-note-copy{
  color:var(--text-soft);
  font-size:13px;
  line-height:1.8;
  margin:0;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.07);
  padding-top:30px;
  margin-top:50px;
}
.footer-copyright{
  color:var(--text-soft);
  font-size:12px;
  letter-spacing:.02em;
}
.footer-copyright a{color:var(--text-muted)}
.footer-copyright a:hover{color:var(--primary)}
.footer-time{
  color:var(--text-soft);
  font-size:12px;
  text-align:right;
}

.back-top{
  position:fixed;
  right:22px;bottom:22px;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid rgba(17,199,217,.3);
  background:rgba(13,22,34,.9);
  color:var(--primary);
  z-index:90;
  display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;
  -webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;
  -webkit-box-pack:center;-webkit-justify-content:center;-ms-flex-pack:center;justify-content:center;
  opacity:0;
  pointer-events:none;
  -webkit-transform:translateY(8px);transform:translateY(8px);
  transition:opacity .2s ease,-webkit-transform .2s ease;transition:opacity .2s ease,transform .2s ease;
}
.back-top.show{opacity:1;pointer-events:auto;-webkit-transform:translateY(0);transform:translateY(0)}
.back-top:hover{background:var(--surface-2);border-color:var(--primary)}

/* Responsive */
@media (min-width:1200px){
  .main-nav{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex}
  .nav-burger{display:none}
}
@media (min-width:992px){
  .cmd-search{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex}
}
@media (min-width:768px) and (max-width:1199px){
  .quick-btn{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex}
  .cmd-search{display:flex}
  .header-cta-mobile{display:none}
}
@media (max-width:1199px){
  .main-nav{display:none}
  .nav-burger{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex}
}
@media (max-width:991px){
  .quick-btn{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex}
  .cmd-search{display:none}
}
@media (max-width:767px){
  :root{--space-section:72px}
  .header-actions .btn-primary{display:none}
  .hero{padding-top:126px}
  .hero-visual{margin-top:44px}
  .section-head h2{font-size:26px}
  .cta-panel{padding:32px 20px}
  .quote-main blockquote{font-size:19px}
  .faq-item summary{font-size:16px}
  .footer-bottom .footer-time{text-align:left;margin-top:12px}
}
@media (max-width:520px){
  .grid-container{padding-left:16px;padding-right:16px}
  .brand-sub{display:none}
  .header-inner{gap:8px}
  .site-logo{margin-right:auto}
  .hero-title{font-size:40px}
  .hero-lead{font-size:18px}
  .data-item{-webkit-box-flex:1;-webkit-flex:1 1 40%;-ms-flex:1 1 40%;flex:1 1 40%;margin-bottom:16px}
  .cta-formbox button{margin-top:12px}
}

/* roulang page: article */
:root {
            --bg-deep: #070B12;
            --bg-surface: #0D1622;
            --bg-light: #131E2D;
            --primary: #11C7D9;
            --primary-soft: rgba(17, 199, 217, 0.14);
            --primary-glow: rgba(17, 199, 217, 0.4);
            --amber: #EDB84B;
            --text-main: #E8F0F8;
            --text-secondary: #9AA9B8;
            --text-muted: #6A7B8C;
            --border-line: rgba(255, 255, 255, 0.12);
            --border-faint: rgba(255, 255, 255, 0.06);
            --radius-card: 16px;
            --radius-input: 10px;
            --radius-btn: 10px;
            --radius-lg: 22px;
            --shadow-card: 0 16px 40px rgba(0, 0, 0, 0.25);
            --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", -apple-system, BlinkMacSystemFont, sans-serif;
            --font-num: "Inter", "SF Pro Display", "Segoe UI", sans-serif;
            --space-section: 104px;
            --container-w: 1280px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-main);
            background: var(--bg-deep);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.7;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        body::before {
            content: "";
            position: fixed;
            inset: 0;
            z-index: 0;
            pointer-events: none;
            background:
                radial-gradient(ellipse 700px 360px at 30% -4%, rgba(17, 199, 217, 0.08), transparent 60%),
                radial-gradient(ellipse 500px 300px at 88% 12%, rgba(237, 184, 75, 0.04), transparent 65%),
                linear-gradient(180deg, #070B12 0%, #0A1119 100%);
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        .grid-container {
            position: relative;
            z-index: 1;
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 72px;
            z-index: 100;
            transition: background 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
            background: rgba(7, 11, 18, 0.72);
            -webkit-backdrop-filter: blur(16px);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .site-header.is-scrolled {
            background: rgba(7, 11, 18, 0.92);
            border-bottom: 1px solid rgba(17, 199, 217, 0.2);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
        }
        .site-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-mark {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            color: #06141b;
            background: linear-gradient(135deg, #45E4F2 0%, #11C7D9 55%, #0FA5B8 100%);
            box-shadow: 0 0 24px rgba(17, 199, 217, 0.35);
            font-family: var(--font-num);
        }
        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.1;
            gap: 3px;
        }
        .brand-word {
            font-size: 18px;
            font-weight: 800;
            letter-spacing: 0.02em;
            white-space: nowrap;
            color: #F2FAFC;
        }
        .brand-sub {
            font-size: 11px;
            color: var(--amber);
            letter-spacing: 0.16em;
            font-weight: 500;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-left: 12px;
        }
        .main-nav .nav-link {
            padding: 10px 16px;
            border-radius: 10px;
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            position: relative;
            white-space: nowrap;
            transition: all 0.2s ease;
        }
        .main-nav .nav-link:hover {
            color: #E4F7FA;
            background: rgba(255, 255, 255, 0.06);
        }
        .main-nav .nav-link.is-active {
            color: var(--primary);
            font-weight: 600;
        }
        .main-nav .nav-link.is-active::after {
            content: "";
            position: absolute;
            bottom: 6px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--primary), transparent);
            border-radius: 2px;
            opacity: 0.7;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .cmd-search {
            position: relative;
            width: 250px;
        }
        .cmd-box {
            display: flex;
            align-items: center;
            gap: 8px;
            height: 38px;
            padding: 0 12px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-faint);
            border-radius: var(--radius-input);
            color: var(--text-muted);
            cursor: text;
            transition: all 0.25s ease;
        }
        .cmd-box:focus-within {
            border-color: var(--primary);
            background: rgba(17, 199, 217, 0.07);
            box-shadow: inset 0 0 0 1px rgba(17, 199, 217, 0.26);
        }
        .cmd-box input {
            flex: 1;
            background: transparent;
            border: 0;
            outline: 0;
            color: var(--text-main);
            font-size: 13px;
            line-height: 1;
        }
        .cmd-box input::placeholder {
            color: var(--text-muted);
        }
        .cmd-box i {
            font-size: 14px;
            color: var(--text-secondary);
        }
        .cmd-panel {
            position: absolute;
            top: calc(100% + 10px);
            left: 0;
            right: 0;
            background: rgba(13, 22, 34, 0.92);
            border: 1px solid var(--border-line);
            border-radius: 14px;
            padding: 10px 6px;
            opacity: 0;
            pointer-events: none;
            visibility: hidden;
            transform: translateY(-8px);
            transition: all 0.25s ease;
            box-shadow: 0 18px 48px rgba(0, 0, 0, 0.45);
            -webkit-backdrop-filter: blur(16px);
            backdrop-filter: blur(16px);
        }
        .cmd-panel.show {
            opacity: 1;
            pointer-events: auto;
            visibility: visible;
            transform: translateY(0);
        }
        .cmd-panel-title {
            font-size: 11px;
            color: var(--text-muted);
            letter-spacing: 0.14em;
            padding: 8px 14px 4px;
            text-transform: uppercase;
        }
        .cmd-panel a {
            display: flex;
            align-items: center;
            gap: 10px;
            height: 42px;
            padding: 0 14px;
            border-radius: 8px;
            color: var(--text-main);
            font-size: 14px;
        }
        .cmd-panel a i {
            font-size: 14px;
            color: var(--primary);
            width: 18px;
            text-align: center;
        }
        .cmd-panel a:nth-child(2) i,
        .cmd-panel a:nth-child(5) i {
            color: var(--amber);
        }
        .cmd-panel a:hover {
            background: rgba(17, 199, 217, 0.1);
            color: var(--primary);
        }
        .quick-btn {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-faint);
            color: var(--text-secondary);
            position: relative;
            transition: all 0.25s ease;
        }
        .quick-btn:hover {
            color: var(--amber);
            border-color: rgba(237, 184, 75, 0.4);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 44px;
            padding: 0 20px;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, rgba(58, 231, 240, 0.95), rgba(17, 199, 217, 0.9), rgba(10, 144, 161, 0.9));
            color: #06141B;
            font-weight: 700;
            font-size: 14px;
            border: 0;
            cursor: pointer;
            box-shadow: 0 0 22px rgba(17, 199, 217, 0.24);
            transition: all 0.25s ease;
            letter-spacing: 0.04em;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(17, 199, 217, 0.35);
            color: #041016;
        }
        .nav-burger {
            display: none;
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-faint);
            border-radius: 10px;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
        }
        .nav-burger span {
            width: 20px;
            height: 2px;
            background: var(--text-main);
            border-radius: 3px;
            transition: all 0.3s ease;
        }
        .nav-burger.is-open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-burger.is-open span:nth-child(2) {
            opacity: 0;
        }
        .nav-burger.is-open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .site-header .mobile-nav {
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(7, 11, 18, 0.97);
            padding: 32px 24px;
            overflow-y: auto;
            display: none;
            opacity: 0;
            transform: translateY(-12px);
            transition: all 0.3s ease;
        }
        .site-header .mobile-nav.is-open {
            display: block;
            opacity: 1;
            transform: translateY(0);
        }
        .mobile-nav .m-head {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 24px;
        }
        .mobile-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 17px;
            padding: 16px 14px;
            border-bottom: 1px solid var(--border-faint);
            color: var(--text-main);
            border-radius: 12px;
            font-weight: 600;
        }
        .mobile-nav a.is-active {
            color: var(--primary);
            background: rgba(17, 199, 217, 0.08);
        }
        .mobile-nav a i {
            color: var(--primary);
        }
        .article-main-page {
            padding-top: 120px;
            padding-bottom: 60px;
        }
        .article-shell {
            position: relative;
            z-index: 2;
        }
        .article-content {
            background: rgba(10, 17, 27, 0.44);
            border: 1px solid var(--border-faint);
            border-radius: 20px;
            padding: 40px 36px;
            box-shadow: 0 16px 50px rgba(0, 0, 0, 0.18);
            overflow: hidden;
        }
        .bread-rumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .bread-rumb a {
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }
        .bread-rumb a:hover {
            color: var(--primary);
        }
        .bread-rumb i {
            font-size: 11px;
            color: var(--text-muted);
            opacity: 0.7;
        }
        .bread-rumb .crumb-current {
            color: var(--text-muted);
            font-weight: 500;
        }
        .article-tagmeta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            margin: 16px 0 18px;
        }
        .chip-cat {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: rgba(17, 199, 217, 0.13);
            color: #50E0EF;
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.02em;
            border: 1px solid rgba(17, 199, 217, 0.28);
            text-transform: uppercase;
        }
        .chip-cat i {
            font-size: 11px;
        }
        .readtime-chip {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-size: 12px;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.04);
            padding: 6px 14px;
            border-radius: 999px;
            border: 1px solid var(--border-faint);
        }
        .article-title {
            font-size: clamp(30px, 4vw, 48px);
            line-height: 1.45;
            font-weight: 800;
            color: #F1F9FB;
            letter-spacing: 0.02em;
            margin: 12px 0 16px;
            word-break: break-word;
            border-left: 4px solid var(--primary);
            padding-left: 22px;
            box-shadow: inset 4px 0 12px rgba(17, 199, 217, 0.12);
        }
        .article-byline {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 18px;
            padding: 12px 0 18px;
            border-bottom: 1px solid var(--border-faint);
            margin-bottom: 24px;
            color: var(--text-muted);
            font-size: 13px;
        }
        .article-byline .by-item {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }
        .article-byline .by-item i {
            color: var(--text-muted);
            font-size: 13px;
        }
        .article-byline .by-avatar {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), #0B7280);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 13px;
            font-weight: 800;
            box-shadow: 0 0 14px rgba(17, 199, 217, 0.2);
        }
        .cover-block {
            position: relative;
            width: 100%;
            border-radius: 18px;
            overflow: hidden;
            margin-bottom: 28px;
            aspect-ratio: 16 / 8;
            background-color: var(--bg-surface);
            border: 1px solid var(--border-faint);
            box-shadow: var(--shadow-card);
        }
        .cover-block img {
            width: 100%;
            height: 100%;
            -o-object-fit: cover;
            object-fit: cover;
        }
        .cover-block::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7, 11, 18, 0) 30%, rgba(7, 11, 18, 0.22) 100%);
        }
        .article-body {
            font-size: 16px;
            line-height: 1.95;
            color: #DCE7ED;
            margin-bottom: 30px;
        }
        .article-body>*+* {
            margin-top: 1.2em;
        }
        .article-body h2 {
            font-size: 26px;
            line-height: 1.5;
            font-weight: 800;
            color: #EDF9FC;
            display: flex;
            align-items: center;
            gap: 12px;
            margin: 1.4em 0 0.7em;
        }
        .article-body h2::before {
            content: "";
            width: 5px;
            height: 24px;
            border-radius: 8px;
            background: linear-gradient(180deg, var(--primary), rgba(17, 199, 217, 0.2));
            box-shadow: 0 0 14px rgba(17, 199, 217, 0.4);
            flex-shrink: 0;
        }
        .article-body h3 {
            font-size: 20px;
            line-height: 1.6;
            font-weight: 700;
            color: #D9F1F5;
            margin-top: 1.3em;
        }
        .article-body p {
            margin-bottom: 1.1em;
            color: #C2D2DE;
        }
        .article-body a {
            color: #3FDBEC;
            border-bottom: 1px dashed rgba(63, 219, 236, 0.5);
            transition: all 0.2s ease;
        }
        .article-body a:hover {
            color: var(--amber);
            border-bottom-color: var(--amber);
        }
        .article-body strong {
            color: #FFFFFF;
            font-weight: 600;
        }
        .article-body em {
            color: #B7DCE4;
            font-style: italic;
        }
        .article-body ul {
            margin: 1em 0;
            padding-left: 0;
            list-style: none;
        }
        .article-body ul>li {
            position: relative;
            padding-left: 30px;
            margin-bottom: 9px;
        }
        .article-body ul>li::before {
            content: "▹";
            position: absolute;
            left: 4px;
            color: var(--primary);
            font-size: 18px;
            line-height: 22px;
        }
        .article-body ol {
            margin: 1em 0;
            padding-left: 22px;
        }
        .article-body ol>li {
            padding-left: 8px;
            margin-bottom: 9px;
        }
        .article-body blockquote {
            position: relative;
            color: #D7E7EC;
            background: rgba(17, 199, 217, 0.05);
            padding: 18px 22px 18px 28px;
            border-radius: 0 11px 11px 0;
            border-left: 3px solid var(--primary);
            margin: 1.4em 0;
            font-size: 15px;
            box-shadow: inset 0 0 30px rgba(17, 199, 217, 0.04);
        }
        .article-body blockquote p {
            margin: 0;
        }
        .article-body img {
            border-radius: 14px;
            margin: 1.4em 0;
            box-shadow: var(--shadow-card);
        }
        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.4em 0;
            font-size: 14px;
            background: transparent;
        }
        .article-body table th {
            background: rgba(17, 199, 217, 0.06);
            color: #CDEEF2;
            font-weight: 700;
            padding: 12px 16px;
            text-align: left;
            border-bottom: 1px solid var(--primary);
        }
        .article-body table td {
            padding: 12px 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .article-tags-end {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 22px;
            padding-top: 18px;
            border-top: 1px solid var(--border-faint);
        }
        .article-tag {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 5px 14px;
            font-size: 12px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-faint);
            color: var(--text-secondary);
            border-radius: 999px;
            transition: all 0.2s ease;
        }
        .article-tag i {
            color: var(--primary);
            margin-right: 6px;
            font-size: 10px;
        }
        .article-tag:hover {
            color: var(--primary);
            border-color: rgba(17, 199, 217, 0.5);
        }
        .post-divider {
            display: flex;
            justify-content: center;
            margin: 8px 0 26px;
        }
        .post-divider .divider-line {
            height: 1px;
            flex: 1;
            max-width: 120px;
            background: linear-gradient(90deg, transparent, rgba(17, 199, 217, 0.3), transparent);
        }
        .post-buttons {
            display: flex;
            flex-direction: column;
            gap: 12px;
            padding-top: 16px;
        }
        .btn-back {
            height: 48px;
            border: 1px solid rgba(17, 199, 217, 0.5);
            border-radius: var(--radius-btn);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            background: transparent;
            color: var(--primary);
            font-size: 15px;
            font-weight: 600;
            padding: 0 24px;
            width: 100%;
            cursor: pointer;
            transition: all 0.25s ease;
        }
        .btn-back:hover {
            background: rgba(17, 199, 217, 0.1);
            box-shadow: 0 0 22px rgba(17, 199, 217, 0.18);
            transform: translateY(-2px);
        }
        .article-side-widget {
            background: rgba(13, 22, 34, 0.42);
            border: 1px solid var(--border-faint);
            border-radius: 18px;
            padding: 28px 22px;
            box-shadow: 0 14px 38px rgba(0, 0, 0, 0.16);
        }
        .side-widget-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 18px;
        }
        .side-widget-title {
            font-size: 17px;
            font-weight: 800;
            color: #E4F8FB;
            display: flex;
            align-items: center;
            gap: 10px;
            position: relative;
            padding-bottom: 12px;
        }
        .side-widget-title::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 38px;
            height: 3px;
            background: var(--primary);
            border-radius: 6px;
            box-shadow: 0 0 12px rgba(17, 199, 217, 0.5);
        }
        .side-widget-title i {
            color: var(--primary);
            font-size: 16px;
        }
        .side-widget-head .more-link {
            font-size: 13px;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color 0.2s ease;
        }
        .side-widget-head .more-link:hover {
            color: var(--primary);
        }
        .toc-list {
            list-style: none;
            margin-top: 4px;
        }
        .toc-list li {
            border-bottom: 1px solid rgba(255, 255, 255, 0.045);
        }
        .toc-list li a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 2px;
            font-size: 13px;
            line-height: 1.45;
            color: var(--text-secondary);
            transition: all 0.2s ease;
        }
        .toc-list li a i {
            color: var(--primary);
            font-size: 11px;
            opacity: 0.5;
            width: 12px;
        }
        .toc-list li a:hover {
            color: var(--primary);
            padding-left: 8px;
        }
        .toc-list li a.is-visible {
            color: var(--primary);
            font-weight: 600;
        }
        .related-card {
            display: flex;
            align-items: stretch;
            gap: 13px;
            background: rgba(255, 255, 255, 0.025);
            border: 1px solid var(--border-faint);
            border-radius: 14px;
            overflow: hidden;
            transition: all 0.3s ease;
            margin-bottom: 12px;
        }
        .related-card img {
            width: 88px;
            object-fit: cover;
            flex-shrink: 0;
        }
        .related-card-body {
            padding: 12px 14px 12px 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 3px;
            min-width: 0;
        }
        .related-card-body .r-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 11px;
            color: var(--text-muted);
        }
        .related-card-body .r-top span {
            display: flex;
            align-items: center;
            gap: 5px;
            color: var(--primary);
        }
        .related-card-body .r-title {
            font-size: 14px;
            font-weight: 600;
            color: #E0EAF0;
            line-height: 1.5;
            display: -webkit-box;
            overflow: hidden;
            -webkit-box-orient: vertical;
        }
        .related-card:hover {
            border-color: rgba(17, 199, 217, 0.4);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
            transform: translateY(-2px);
        }
        .related-card:hover .r-title {
            color: var(--primary);
        }
        .related-card:last-child {
            margin-bottom: 0;
        }
        .widget-divider {
            border: 0;
            width: 100%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(17, 199, 217, 0.18), transparent);
            margin: 24px 0 25px;
        }
        .notfound-box {
            max-width: 760px;
            margin: 80px auto;
            background: rgba(13, 22, 34, 0.4);
            border: 1px solid var(--border-faint);
            border-radius: var(--radius-card);
            padding: 48px;
            text-align: center;
        }
        .notfound-icon {
            width: 72px;
            height: 72px;
            margin-bottom: 16px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 2px solid rgba(17, 199, 217, 0.3);
            border-radius: 26px;
            color: var(--primary);
            font-size: 32px;
        }
        .notfound-title {
            font-size: 26px;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .btn-home {
            margin: 24px auto 0;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--primary) 0%, #0EAFC0 100%);
            color: #06141B;
            font-weight: 700;
            padding: 14px 34px;
            border-radius: 14px;
            font-size: 15px;
            transition: all 0.25s ease;
        }
        .site-footer {
            background: #0A111A;
            border-top: 1px solid rgba(17, 199, 217, 0.12);
            padding: 70px 0 24px;
            position: relative;
            z-index: 2;
        }
        .footer-brand .site-logo {
            margin-bottom: 17px;
        }
        .footer-brand .brand-tail {
            font-size: 14px;
            line-height: 1.9;
            color: var(--text-muted);
            max-width: 280px;
            margin-top: 6px;
        }
        .footer-heading {
            font-size: 14px;
            font-weight: 700;
            color: #C8D7E4;
            letter-spacing: 0.12em;
            margin-bottom: 17px;
            padding-bottom: 13px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            position: relative;
        }
        .footer-heading::after {
            content: "";
            position: absolute;
            bottom: -1px;
            left: 0;
            width: 35px;
            height: 2px;
            background: var(--primary);
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 12px;
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 9px;
            transition: all 0.2s ease;
        }
        .footer-links a i {
            font-size: 5px;
            color: var(--primary);
            opacity: 0.8;
        }
        .footer-links a:hover {
            color: var(--primary);
            padding-left: 4px;
            opacity: 1;
        }
        .footer-note-copy {
            font-size: 14px;
            line-height: 1.9;
            color: var(--text-muted);
            margin-bottom: 22px;
            max-width: 330px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            margin-top: 46px;
            padding-top: 27px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-copyright {
            opacity: 0.8;
        }
        .footer-time {
            text-align: right;
        }
        @media (min-width: 1025px) {
            .site-header .main-nav {
                display: flex;
            }
            .site-header .nav-burger {
                display: none;
            }
            .site-header .mobile-nav {
                display: none !important;
            }
        }
        @media (max-width: 1024px) {
            :root {
                --space-section: 88px;
            }
            .site-header .main-nav {
                display: none;
            }
            .site-header .header-actions .cmd-search {
                display: none;
            }
            .site-header .nav-burger {
                display: flex;
            }
            .quick-btn {
                margin-left: auto;
            }
            .article-content {
                padding: 32px 18px;
            }
            .article-shell .side-sticky {
                margin-top: 28px;
            }
            .article-title {
                font-size: 27px;
                padding-left: 14px;
            }
        }
        @media (max-width: 640px) {
            :root {
                --space-section: 60px;
                --font-num: "Inter", "SF Pro Display", sans-serif;
            }
            body {
                font-size: 15px;
            }
            .site-header {
                height: 66px;
            }
            .header-inner {
                height: 66px;
            }
            .site-logo .brand-word {
                font-size: 16px;
            }
            .site-logo .brand-sub {
                display: none;
            }
            .brand-mark {
                width: 34px;
                height: 34px;
                font-size: 14px;
                border-radius: 9px;
            }
            .header-actions {
                gap: 11px;
            }
            .quick-btn {
                display: none;
            }
            .btn-primary {
                height: 42px;
                padding: 0 13px;
                font-size: 13px;
            }
            .btn-primary i {
                display: none;
            }
            .article-content {
                padding: 24px 14px;
            }
            .bread-rumb {
                font-size: 12px;
            }
            .article-title {
                font-size: 23px;
                line-height: 1.5;
                padding-left: 12px;
                margin-bottom: 14px;
            }
            .article-byline {
                gap: 12px;
                font-size: 12px;
            }
            .cover-block {
                margin-bottom: 20px;
            }
            .article-body h2 {
                font-size: 21px;
            }
            .article-side-widget {
                padding: 20px 16px;
            }
            .site-footer {
                padding-top: 42px;
            }
            .site-footer .footer-time {
                text-align: left;
                margin-top: 8px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-links {
                flex-wrap: wrap;
                flex-direction: row;
                gap: 9px;
            }
            .footer-links a {
                font-size: 13px;
            }
            .brand-tail,
            .footer-note-copy {
                font-size: 13px;
            }
            .notfound-box {
                padding: 36px 20px;
                margin: 40px auto;
            }
            .notfound-icon {
                width: 60px;
                height: 60px;
            }
            .site-header .mobile-nav {
                top: 66px;
            }
        }

/* roulang page: category2 */
:root{
    --bg-deep:#070B12;
    --bg-surface:#0D1622;
    --bg-card:rgba(255,255,255,.04);
    --primary:#11C7D9;
    --primary-soft:rgba(17,199,217,.15);
    --primary-glow:rgba(17,199,217,.35);
    --accent:#EDB84B;
    --accent-soft:rgba(237,184,75,.16);
    --danger:#e4577a;
    --text-main:#F2F6FA;
    --text-strong:#FFFFFF;
    --text-sub:#9AA8B8;
    --text-mist:#6C7A8A;
    --line-white:rgba(255,255,255,.08);
    --line-high:rgba(255,255,255,.14);
    --radius-card:16px;
    --radius-pill:999px;
    --shadow-card:0 16px 40px rgba(0,0,0,.32);
    --shadow-float:0 12px 30px rgba(0,0,0,.30);
    --container:1280px;
    --space-section:112px;
    --mono:"SFMono-Regular","Cascadia Code","Roboto Mono",Consolas,"Liberation Mono",monospace;
    --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
    margin:0;
    background:var(--bg-deep);
    background-image:radial-gradient(circle at 50% -10%,rgba(17,199,217,.06),transparent 320px),radial-gradient(circle at 88% 24%,rgba(237,184,75,.04),transparent 220px);
    color:var(--text-main);
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
    font-size:16px;
    line-height:1.7;
    overflow-x:hidden;
    -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease);}
img{max-width:100%;height:auto;display:block;border:0;}
button,input,select,textarea{font-family:inherit;font-size:inherit;line-height:inherit;}
button{cursor:pointer;border:0;background:none;color:inherit;}
ul,ol{list-style:none;}
.container{max-width:var(--container);margin-left:auto;margin-right:auto;padding-left:26px;padding-right:26px;}
.grid-container{max-width:var(--container);}

/* ============ Header / Nav ============ */
.site-header{
    position:fixed;top:0;left:0;right:0;z-index:1000;
    background:rgba(7,11,18,.66);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line-white);
    transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
    background:rgba(5,8,14,.93);
    border-bottom-color:rgba(17,199,217,.22);
    box-shadow:0 4px 24px rgba(0,0,0,.22);
}
.header-inner{display:flex;align-items:center;gap:24px;height:74px;position:relative;z-index:2;}
.site-logo{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
    width:40px;height:40px;border-radius:10px;display:grid;place-items:center;
    background:linear-gradient(135deg,rgba(17,199,217,.18),rgba(17,199,217,.05));
    border:1px solid rgba(17,199,217,.45);
    color:var(--primary);
    font-size:14px;font-weight:800;letter-spacing:.02em;
    box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 0 18px rgba(17,199,217,.12);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-word{color:var(--text-strong);font-weight:800;font-size:17px;letter-spacing:.01em;white-space:nowrap;}
.brand-sub{font-size:11px;color:var(--text-sub);letter-spacing:.08em;margin-top:2px;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
    position:relative;font-size:14.5px;font-weight:400;color:var(--text-sub);
    padding:10px 15px;border-radius:10px;display:inline-block;
    transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-link:hover{color:var(--text-strong);background:rgba(255,255,255,.04);}
.nav-link.is-active{color:var(--primary);font-weight:600;background:rgba(17,199,217,.08);}
.nav-link.is-active::after{
    content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
    background:linear-gradient(90deg,transparent,var(--primary) 18%,var(--primary) 82%,transparent);
    border-radius:2px;
    -webkit-clip-path:polygon(4px 0,calc(100% - 4px) 0,100% 100%,0 100%);
    clip-path:polygon(4px 0,calc(100% - 4px) 0,100% 100%,0 100%);
    background-color:var(--primary);
    opacity:.85;
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:4px;flex-shrink:0;}
.cmd-search{position:relative;}
.cmd-box{
    display:flex;align-items:center;gap:8px;width:240px;height:38px;background:rgba(255,255,255,.05);
    border:1px solid var(--line-white);border-radius:10px;padding:0 12px;cursor:text;
    transition:border-color .22s ease,box-shadow .22s ease;
}
.cmd-box:focus-within{border-color:var(--primary);box-shadow:inset 0 0 0 1px var(--primary-glow),0 0 0 3px rgba(17,199,217,.07);}
.cmd-box i{color:var(--text-mist);font-size:13px;}
.cmd-box input{
    background:transparent;border:0;outline:none;color:var(--text-main);
    font-size:13.5px;width:100%;
}
.cmd-box input::placeholder{color:var(--text-mist);}
.cmd-panel{
    position:absolute;top:44px;left:0;width:min(310px,calc(100vw - 56px));
    background:rgba(9,14,22,.96);border:1px solid var(--line-high);
    border-radius:14px;padding:8px;box-shadow:0 18px 50px rgba(0,0,0,.44),inset 0 1px 0 rgba(255,255,255,.04);
    opacity:0;visibility:hidden;transform:translateY(-4px);
    transition:opacity .18s ease,transform .18s ease;
    -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
    z-index:1100;
}
.cmd-search.is-open .cmd-panel{opacity:1;visibility:visible;transform:translateY(0);}
.cmd-panel-title{font-size:11px;color:var(--text-mist);padding:10px 12px 6px;letter-spacing:.1em;}
.cmd-panel a{
    display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:9px;
    color:var(--text-sub);font-size:14px;transition:background .15s ease,color .15s ease;
}
.cmd-panel a:hover{background:var(--primary-soft);color:var(--text-strong);}
.cmd-panel a i{color:var(--primary);width:16px;font-size:13px;text-align:center;}
.quick-btn{
    width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--line-white);
    border-radius:10px;color:var(--text-sub);background:rgba(255,255,255,.04);
    transition:all .2s ease;
}
.quick-btn:hover{color:var(--primary);border-color:rgba(17,199,217,.45);background:var(--primary-soft);}
.btn-primary{
    display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 19px;
    background:linear-gradient(120deg,rgba(17,199,217,.12) 0%,var(--primary) 100%);
    border:1px solid rgba(17,199,217,.6);border-radius:10px;color:#0b1720;font-weight:700;font-size:14px;
    white-space:nowrap;transition:all .22s var(--ease);
    box-shadow:0 2px 12px rgba(17,199,217,.12);
    position:relative;overflow:hidden;
}
.btn-primary::before{
    content:"";position:absolute;top:0;left:-80%;width:60%;height:100%;
    background:linear-gradient(100deg,transparent,rgba(255,255,255,.28),transparent);
    transform:skewX(-20deg);transition:left .5s ease;
}
.btn-primary:hover{
    transform:translateY(-2px);
    box-shadow:0 10px 28px rgba(17,199,217,.22);
    border-color:var(--primary);
}
.btn-primary:hover::before{left:130%;}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 14px rgba(17,199,217,.14);}
.btn-primary span{color:#071B22;}
.btn-primary i{color:#071B22;}
.nav-burger{
    display:none;width:40px;height:38px;border-radius:10px;
    border:1px solid var(--line-white);background:rgba(255,255,255,.03);
    flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-burger span{display:block;width:16px;height:2px;background:var(--text-main);border-radius:2px;transition:all .25s var(--ease);}
.nav-burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-burger.is-open span:nth-child(2){opacity:0;}
.nav-burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-nav{
    display:none;
    position:fixed;top:0;left:0;right:0;bottom:0;z-index:998;
    background:rgba(5,8,14,.97);
    -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
    padding:100px 26px 26px;
    overflow-y:auto;flex-direction:column;gap:6px;
    opacity:0;visibility:hidden;transition:opacity .2s ease;
}
.mobile-nav.is-open{display:flex;opacity:1;visibility:visible;}
.mobile-nav .mobile-label{font-size:12px;color:var(--text-mist);letter-spacing:.08em;margin-bottom:14px;margin-top:10px;}
.mobile-nav a{
    display:flex;align-items:center;gap:12px;padding:15px 14px;border-radius:12px;
    font-size:17px;color:var(--text-main);background:rgba(255,255,255,.03);
    margin-bottom:4px;border:1px solid transparent;
}
.mobile-nav a i{width:18px;text-align:center;color:var(--primary);}
.mobile-nav a.is-active{background:var(--primary-soft);border-color:rgba(17,199,217,.24);color:var(--primary);}
.mobile-nav .btn-primary{justify-content:center;height:50px;margin-top:16px;}

/* ============ Category 页头 ============ */
.cat-hero{
    padding:152px 0 56px 0;
    position:relative;
    overflow:hidden;
    border-bottom:1px solid var(--line-white);
    background: linear-gradient(180deg,rgba(13,22,34,.42),rgba(7,11,18,0));
}
.cat-hero::before{
    content:"";position:absolute;top:70px;right:calc(50% - 600px);width:520px;height:220px;
    background:radial-gradient(circle,rgba(17,199,217,.08),transparent 68%);
    pointer-events:none;
}
.cat-hero-inner{position:relative;z-index:2;}
.breadcrumb-custom{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-bottom:24px;font-size:13px;color:var(--text-mist);}
.breadcrumb-custom a{color:var(--text-mist);}
.breadcrumb-custom a:hover{color:var(--primary);}
.breadcrumb-custom .sep{color:rgba(255,255,255,.24);font-family:var(--mono);font-size:11px;}
.breadcrumb-custom .current{color:rgba(255,255,255,.52);}
.hero-title-bar{display:flex;align-items:flex-start;gap:18px;margin-bottom:22px;}
.hero-title-bar .bar-divider{width:4px;align-self:stretch;border-radius:99px;background:var(--primary);box-shadow:0 0 12px var(--primary-glow);flex-shrink:0;}
.cat-hero h1{
    font-size:46px;line-height:1.18;color:var(--text-strong);font-weight:800;
    letter-spacing:-.02em;margin-bottom:16px;
}
.cat-hero .hero-title-bar h1{margin-bottom:0;}
.cat-hero .cat-lead{
    font-size:16px;color:var(--text-sub);font-weight:400;max-width:760px;
    margin-top:5px;margin-left:22px;line-height:1.8;
}
.cat-hero .cat-lead strong{color:var(--text-strong);font-weight:600;}
.cat-cta-row{margin-top:26px;margin-left:22px;display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.btn-glass{
    display:inline-flex;align-items:center;gap:9px;padding:0 22px;height:44px;border-radius:10px;
    background:rgba(255,255,255,.06);border:1px solid var(--line-high);color:var(--text-strong);font-size:14px;font-weight:600;
    transition:all .22s var(--ease);
}
.btn-glass:hover{background:rgba(255,255,255,.1);border-color:rgba(17,199,217,.55);color:var(--primary);transform:translateY(-1px);}
.btn-ghost-line{
    display:inline-flex;align-items:center;gap:8px;padding:0 22px;height:44px;border-radius:10px;
    background:transparent;border:1px solid rgba(255,255,255,.16);color:var(--text-sub);font-size:14px;
    transition:all .22s var(--ease);
}
.btn-ghost-line:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-soft);}
.btn-ghost-line i{font-size:12px;}
.cat-hero-tags{margin-top:34px;margin-left:22px;display:flex;flex-wrap:wrap;gap:8px;}
.tag-mini{
    display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--text-mist);
    background:rgba(255,255,255,.04);border:1px solid var(--line-white);border-radius:var(--radius-pill);padding:5px 14px;
}
.tag-mini i{color:var(--primary);font-size:10px;opacity:.7;}

/* ============ Section 通用 ============ */
.section-block{padding:92px 0;}
.section-block.tight{padding:76px 0;}
.section-eyebrow{
    display:inline-flex;align-items:center;gap:8px;background:var(--primary-soft);
    color:var(--primary);font-size:12.5px;font-weight:600;letter-spacing:.06em;
    padding:4px 14px;border-radius:var(--radius-pill);margin-bottom:18px;
}
.section-eyebrow i{font-size:11px;}
.section-title{font-size:32px;line-height:1.3;color:var(--text-strong);font-weight:800;margin-bottom:12px;letter-spacing:-.01em;}
.section-subtitle{color:var(--text-sub);font-size:15px;max-width:620px;margin-bottom:36px;}

/* ============ 特色内容区 / 上方大卡 + 下排两条 ============ */
.feature-wrap{}
.feature-a{
    position:relative;border-radius:20px;overflow:hidden;display:flex;min-height:360px;
    background:linear-gradient(135deg,rgba(13,22,34,.92),rgba(13,22,34,.56));
    border:1px solid var(--line-high);
    max-height:420px;
}
.feature-a .feature-col-image{flex:0 0 58%;position:relative;overflow:hidden;}
.feature-a .feature-col-image::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(90deg,rgba(7,11,18,.82),rgba(7,11,18,0) 36%);
    pointer-events:none;
}
.feature-a .feature-col-image img{width:100%;height:100%;object-fit:cover;}
.feature-a .feature-col-body{flex:1;padding:52px 50px;display:flex;flex-direction:column;justify-content:center;position:relative;z-index:2;}
.feature-a .mega-badge{
    display:inline-flex;align-items:center;gap:7px;background:var(--accent-soft);color:var(--accent);
    font-size:12px;font-weight:600;padding:4px 12px;border-radius:var(--radius-pill);margin-bottom:18px;align-self:flex-start;
}
.feature-a .mega-title{font-size:28px;line-height:1.35;color:var(--text-strong);font-weight:800;margin-bottom:14px;}
.feature-a .mega-desc{font-size:15px;color:var(--text-sub);line-height:1.9;max-width:460px;}
.feature-a .mega-meta{display:flex;align-items:center;gap:18px;margin-top:22px;flex-wrap:wrap;}
.feature-a .mega-meta .stat-mini{font-family:var(--mono);color:var(--primary);font-weight:600;font-size:14px;display:flex;align-items:center;gap:6px;background:var(--primary-soft);padding:5px 12px;border-radius:8px;}
.feature-a .mega-meta .stat-mini i{font-size:11px;}
.feature-a .feature-cta{margin-top:25px;display:inline-flex;align-items:center;gap:10px;padding:0 24px;height:46px;background:var(--primary);border-radius:10px;color:#071B22;font-weight:700;align-self:flex-start;font-size:14px;box-shadow:0 4px 18px rgba(17,199,217,.26);transition:all .22s var(--ease);}
.feature-a .feature-cta:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(17,199,217,.32);}
.feature-a .feature-cta i{font-size:12px;}
.feature-b-list{
    margin-top:32px;display:grid;grid-template-columns:1fr 1fr;gap:28px;
}
.feature-b{
    display:flex;align-items:stretch;justify-content:space-between;gap:0;
    background:rgba(255,255,255,.035);border:1px solid var(--line-white);
    backdrop-filter:none;border-radius:var(--radius-card);overflow:hidden;
    min-height:220px;
    box-shadow:0 6px 22px rgba(0,0,0,.16);
    transition:all .18s ease;
}
.feature-b:hover{background:rgba(255,255,255,.055);border-color:rgba(17,199,217,.3);transform:translateY(-2px);}
.feature-b .b-body{padding:28px 14px 28px 28px;display:flex;flex-direction:column;justify-content:center;flex:1;}
.feature-b .b-kind{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:var(--accent);font-weight:600;margin-bottom:12px;letter-spacing:.03em;}
.feature-b .b-kind i{font-size:15px;color:var(--accent);}
.feature-b h3{font-size:19px;line-height:1.45;color:var(--text-strong);font-weight:800;margin-bottom:10px;}
.feature-b p{font-size:14px;color:var(--text-sub);line-height:1.75;max-width:90%;}
.feature-b .b-tag-row{margin-top:13px;display:flex;gap:7px;flex-wrap:wrap;}
.feature-b .b-tag-row span{font-size:11.5px;color:var(--text-sub);border:1px solid var(--line-white);padding:2px 9px;border-radius:var(--radius-pill);}
.feature-b .b-img{flex:0 0 86px;position:relative;overflow:hidden;}
.feature-b .b-img img{width:100%;height:100%;object-fit:cover;}
.feature-b .b-img::before{content:"";position:absolute;top:0;bottom:0;left:0;width:1px;background:linear-gradient(180deg,var(--line-high),rgba(17,199,217,.2));z-index:2;}

/* ============ 内容索引区 / Timeline ============ */
.timeline-head{margin-bottom:44px;}
.timeline{position:relative;padding-left:20px;}
.timeline::before{
    content:"";position:absolute;left:0;top:8px;bottom:16px;width:1px;
    background:linear-gradient(180deg,var(--primary) 0%,rgba(17,199,217,.15) 14%,rgba(17,199,217,.05) 86%,transparent 100%);
}
.timeline-item{
    position:relative;display:flex;align-items:stretch;gap:0;margin-bottom:24px;
    border:1px solid var(--line-white);background:rgba(255,255,255,.025);
    border-radius:14px;padding:0;overflow:hidden;
    cursor:default;
    transition:background-color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.timeline-item:hover{
    background:rgba(255,255,255,.045);border-color:var(--line-high);
    transform:translateX(5px);
    box-shadow:0 8px 26px rgba(0,0,0,.18);
}
.timeline-item::before{
    content:"";position:absolute;left:-20px;top:27px;width:9px;height:9px;border-radius:50%;
    background:var(--primary);box-shadow:0 0 0 3px rgba(17,199,217,.16),0 0 10px var(--primary-glow);
    transition:all .2s var(--ease);
}
.timeline-item:hover::before{box-shadow:0 0 0 6px rgba(17,199,217,.18),0 0 14px var(--primary-glow);}
.timeline-item .tl-num{
    display:flex;align-items:center;justify-content:center;font-family:var(--mono);
    color:var(--text-mist);font-size:14px;font-weight:600;letter-spacing:.08em;padding:0 15px;border-right:1px solid var(--line-white);
}
.timeline-item .tl-main{flex:1;display:flex;flex-direction:column;justify-content:center;padding:22px 27px;}
.timeline-item .tl-cat-row{display:flex;align-items:center;gap:10px;margin-bottom:8px;flex-wrap:wrap;}
.timeline-item .tl-label{
    display:inline-flex;align-items:center;gap:5px;font-size:12px;color:var(--accent);background:var(--accent-soft);
    padding:3px 11px;border-radius:var(--radius-pill);font-weight:600;
}
.timeline-item .tl-cat{font-size:12px;color:var(--text-mist);letter-spacing:.05em;}
.timeline-item .tl-time{font-size:12px;color:var(--text-mist);margin-left:auto;}
.timeline-item h3{font-size:18px;font-weight:700;color:var(--text-strong);margin-bottom:7px;line-height:1.5;}
.timeline-item p{font-size:14px;color:var(--text-sub);margin-bottom:0;line-height:1.75;}
.timeline-item .tl-thumb{
    width:150px;flex-shrink:0;position:relative;overflow:hidden;border-left:1px solid var(--line-white);
}
.timeline-item .tl-thumb img{width:100%;height:100%;object-fit:cover;min-height:130px;}
.timeline-item .tl-links{
    display:flex;align-items:center;gap:17px;margin-top:12px;font-size:14px;
}
.timeline-item .tl-entry-link{
    color:var(--primary);font-weight:500;display:inline-flex;align-items:center;gap:5px;
    transition:gap .2s ease,color .2s ease;
}
.timeline-item .tl-entry-link:hover{color:#5fe1ee;gap:9px;}
.timeline-item .tl-entry-link i{font-size:11px;}

/* ============ 关键词云 ============ */
.cloud-tags{display:flex;flex-wrap:wrap;gap:11px;margin-top:24px;}
.cloud-tags span{
    display:inline-flex;align-items:center;gap:6px;padding:8px 17px;border:1px solid var(--line-white);
    border-radius:var(--radius-pill);font-size:13.5px;color:var(--text-sub);
    background:rgba(255,255,255,.035);
    font-weight:400;
    transition:border-color .2s ease,color .2s ease,background-color .2s ease,transform .2s ease;
}
.cloud-tags span i{color:var(--primary);font-size:11px;opacity:.7;transition:transform .2s ease;}
.cloud-tags span:hover{border-color:rgba(17,199,217,.3);color:var(--text-strong);background:var(--primary-soft);transform:translateY(-1px);}
.cloud-tags span:hover i{transform:rotate(180deg);}

/* ============ FAQ ============ */
.faq-wrap{max-width:760px;margin:0 auto;padding-top:10px;}
.faq-intro{text-align:center;margin-bottom:38px;}
.faq-intro .section-eyebrow{display:inline-flex;margin-bottom:14px;}
.faq-intro .section-title{font-size:28px;margin-bottom:10px;}
.faq-intro p{color:var(--text-sub);font-size:14px;max-width:520px;margin:0 auto;}
.accordion-item{width:100%;border-bottom:1px solid rgba(17,199,217,.12);padding:0;}
.accordion-item:first-child{border-top:1px solid rgba(17,199,217,.12);}
.acc-head{
    width:100%;display:flex;align-items:center;gap:17px;padding:13px 0 13px 0;
}
.acc-num{font-family:var(--mono);font-size:13px;color:var(--text-mist);letter-spacing:.04em;width:13px;transition:color .2s ease;}
.acc-question{
    flex:1;text-align:left;font-size:15.5px;font-weight:600;color:var(--text-main);
    transition:color .2s ease;line-height:1.5;
}
.acc-icon{
    width:22px;height:22px;border-radius:50%;border:1px solid var(--line-high);
    display:grid;place-items:center;font-size:11px;transition:all .22s ease;
}
.acc-icon i{color:var(--text-sub);transition:transform .25s ease,color .2s ease;}
.acc-body{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.acc-inner{padding:0 0 16px 30px;max-width:680px;}
.acc-inner p{font-size:14.5px;color:var(--text-sub);line-height:1.9;}
.accordion-item.is-open .acc-icon{background:var(--primary);border-color:var(--primary);}
.accordion-item.is-open .acc-icon i{color:#071B22;transform:rotate(180deg);}
.accordion-item.is-open .acc-question{color:var(--primary);}
.acc-head:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}

/* ============ CTA 底部 ============ */
.cta-panel{
    border-radius:24px;overflow:hidden;position:relative;background:#0D1820;border:1px solid rgba(17,199,217,.16);
    padding:0;
}
.cta-panel::before{
    content:"";position:absolute;inset:0;
    background-image:linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px);
    background-size:34px 34px;
    -webkit-mask-image:radial-gradient(ellipse at 48% 46%,#000,transparent 74%);
    mask-image:radial-gradient(ellipse at 48% 46%,#000,transparent 74%);
    pointer-events:none;
}
.cta-panel::after{
    content:"";position:absolute;top:-100px;left:50%;transform:translateX(-50%);width:100%;height:350px;
    background:radial-gradient(ellipse at center,rgba(17,199,217,.07),transparent 62%);
    pointer-events:none;
}
.cta-inner{position:relative;z-index:2;padding:64px 60px 58px;display:flex;flex-direction:column;align-items:center;text-align:center;}
.cta-inner .cta-badge{display:inline-flex;align-items:center;gap:8px;background:var(--accent-soft);border:1px solid rgba(237,184,75,.26);color:var(--accent);font-size:13px;padding:6px 16px;border-radius:var(--radius-pill);margin-bottom:18px;}
.cta-panel h2{font-size:34px;line-height:1.35;color:var(--text-strong);font-weight:800;margin-bottom:12px;}
.cta-panel h2 .accent-word{color:var(--primary);}
.cta-panel .cta-desc{font-size:15px;color:var(--text-sub);max-width:680px;margin-bottom:29px;}
.cta-row{display:flex;align-items:center;gap:15px;flex-wrap:wrap;justify-content:center;}
.btn-primary.large{height:50px;padding:0 30px;font-size:15px;border-radius:12px;}
.btn-glass.large{height:50px;padding:0 28px;border-radius:12px;font-size:14px;}
.cta-tip{margin-top:22px;font-size:12.5px;color:var(--text-mist);}

/* ============ Footer ============ */
.site-footer{
    background:rgba(5,8,14,.85);
    border-top:1px solid var(--line-white);
    padding:60px 0 28px;margin-top:100px;
}
.site-footer .grid-container{max-width:var(--container);}
.footer-brand .site-logo{margin-bottom:20px;}
.brand-tail{font-size:14px;line-height:1.8;color:var(--text-sub);max-width:332px;}
.footer-heading{color:var(--text-strong);font-weight:600;font-size:15px;margin-bottom:17px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{display:inline-flex;align-items:center;gap:9px;color:var(--text-sub);font-size:13.5px;transition:all .2s ease;}
.footer-links a i{font-size:7px;color:var(--text-mist);transition:color .2s ease;}
.footer-links a:hover{color:var(--primary);}
.footer-links a:hover i{color:var(--primary);}
.footer-note-copy{color:var(--text-sub);font-size:13.5px;line-height:1.9;max-width:400px;padding-right:28px;}
.footer-bottom{border-top:1px solid var(--line-white);margin-top:44px;padding-top:25px;align-items:center;}
.footer-copyright{color:var(--text-mist);font-size:13px;}
.footer-time{color:var(--text-mist);font-size:13px;text-align:right;}

/* ============ 响应式断点 ============ */
@media screen and (max-width:1199px){
    .cmd-box{width:200px;}
    .main-nav{scale:.96;}
}
@media screen and (max-width:1023px){
    .grid-container{padding-left:22px;padding-right:22px;}
    .header-inner{gap:15px;}
    .desktop-hide{display:block;}
    .main-nav{display:none;}
    .cmd-box{width:180px;}
    .quick-btn{display:none;}
    .nav-burger{display:flex;}
    .feature-a{min-height:300px;max-height:none;flex-direction:column;}
    .feature-a .feature-col-image{flex:0 0 190px;width:100%;min-height:190px;}
    .feature-a .feature-col-body{padding:30px 24px 30px;}
    .feature-a .feature-col-image::after{background:linear-gradient(180deg,rgba(7,11,18,.2),rgba(7,11,18,.08));}
    .cat-hero h1,.hero-title-bar h1{font-size:40px;}
    .section-title{font-size:27px;}
    .timeline-item{flex-wrap:wrap;}
    .timeline-item .tl-thumb{width:100%;height:100px;border-left:none;border-top:1px solid var(--line-white);}
    .timeline-item .tl-thumb img{min-height:80px;width:100%;height:100%;}
    .brand-word{font-size:15px;}
}
@media screen and (max-width:767px){
    .section-block{padding:68px 0;}
    .header-inner{height:66px;}
    .cmd-box{display:none;}
    .header-actions{gap:8px;}
    .btn-primary span{display:none;}
    .btn-primary{width:40px;padding:0;justify-content:center;border-radius:10px;}
    .btn-primary i{color:#071B22;}
    .mobile-nav{padding-top:90px;}
    .cat-hero{padding:126px 0 44px;}
    .cat-hero h1,.hero-title-bar h1{font-size:32px;}
    .hero-title-bar{flex-direction:row;gap:14px;}
    .feature-b-list{grid-template-columns:1fr;}
    .feature-b{flex-direction:column-reverse;}
    .feature-b .b-img{width:100%;flex:none;height:90px;}
    .feature-b .b-img img{height:100%;width:100%;}
    .timeline-item .tl-num{padding:14px 12px;border-right:none;border-bottom:1px solid var(--line-white);width:100%;justify-content:flex-start;}
    .timeline-item .tl-main{padding:18px 20px;}
    .timeline-item p{font-size:13.5px;}
    .section-title{font-size:24px;}
    .site-footer{padding:42px 0 20px;}
    .footer-bottom .cell{padding-top:12px;}
    .footer-time{text-align:left;}
    .cta-inner{padding:46px 25px 42px;}
    .cta-panel h2{font-size:26px;}
    .cta-desc{font-size:14px;}
    .faq-wrap{padding-top:0;}
    .acc-question{font-size:14.5px;}
    .acc-inner{padding-left:20px;}
    .mobile-nav a.btn-primary span{display:inline;}
    .mobile-nav a.btn-primary{width:100%;justify-content:center;color:#071B22;}
}
@media screen and (max-width:520px){
    .grid-container{padding-left:17px;padding-right:17px;}
    .cat-hero h1,.hero-title-bar h1{font-size:27px;line-height:1.3;}
    .cat-hero .cat-lead,.cat-cta-row,.cat-hero-tags{margin-left:17px;}
    .hero-title-bar .bar-divider{width:3px;}
    .feature-a .mega-title{font-size:21px;}
    .section-title{font-size:21px;}
    .timeline-item .tl-thumb{height:84px;}
    .brand-sub{display:none;}
}

/* ============ 打印与focus可见性 ============ */
a:focus-visible,
button:focus-visible{
    outline:2px solid var(--primary);
    outline-offset:3px;
    border-radius:4px;
}
input:focus{outline:none;}
img:focus{outline:none;}

/* roulang page: category1 */
:root {
  --bg: #070B12;
  --bg-deep: #04070C;
  --surface: #0D1622;
  --surface-soft: rgba(255, 255, 255, 0.05);
  --white: #EAF3F8;
  --text: #C7D7E3;
  --muted: #90A9BC;
  --line: rgba(255, 255, 255, 0.12);
  --line-strong: rgba(255, 255, 255, 0.22);
  --cyan: #11C7D9;
  --cyan-light: #7CEAF2;
  --amber: #EDB84B;
  --danger: #E46962;
  --radius-xl: 20px;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-full: 999px;
  --shadow-soft: 0 16px 40px rgba(0, 0, 0, 0.28);
  --shadow-glow: 0 12px 32px rgba(17, 199, 217, 0.22);
  --header-h: 72px;
  --section-space: 96px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}
html {
  scroll-behavior: smooth;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: var(--bg);
  background-image: radial-gradient(1100px 520px at 50% -8%, rgba(17, 199, 217, 0.14), transparent 70%);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
body.menu-open {
  overflow: hidden;
}
body.menu-open .site-header .main-nav {
  transform: translateY(0);
  visibility: visible;
}
h1, h2, h3, h4, h5 {
  color: var(--white);
  font-weight: 800;
  line-height: 1.35;
  margin-top: 0;
}
h1.hidden-title {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
a {
  color: var(--cyan);
  text-decoration: none;
  transition: color .2s var(--ease);
}
a:hover {
  color: var(--cyan-light);
}
img {
  display: block;
  max-width: 100%;
}
button {
  font-family: inherit;
  cursor: pointer;
}
input {
  font-family: inherit;
}
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 6px;
}
.grid-container {
  max-width: 1280px;
  padding-left: clamp(1rem, 3vw, 2rem);
  padding-right: clamp(1rem, 3vw, 2rem);
}
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 180;
  height: var(--header-h);
  background: rgba(7, 11, 18, 0.66);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: background .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.site-header.is-scrolled {
  background: rgba(7, 11, 18, 0.92);
  border-bottom-color: rgba(17, 199, 217, 0.38);
  box-shadow: 0 1px 0 rgba(17, 199, 217, 0.18), 0 12px 32px rgba(0, 0, 0, 0.35);
}
.header-inner {
  display: flex;
  align-items: center;
  height: var(--header-h);
  gap: 22px;
}
.site-logo {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex-shrink: 0;
  color: var(--white);
}
.site-logo:hover {
  color: var(--white);
}
.brand-mark {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, #0E9BAC, #11C7D9);
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 17px;
  letter-spacing: -0.02em;
  color: #03171B;
  box-shadow: 0 0 0 1px rgba(186, 250, 255, 0.35) inset, 0 8px 20px rgba(17, 199, 217, 0.2);
}
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.brand-word {
  font-weight: 800;
  font-size: 21px;
  color: var(--white);
  letter-spacing: 0.01em;
}
.brand-sub {
  font-size: 11.5px;
  color: var(--muted);
  letter-spacing: 0.1em;
  margin-top: 3px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0 10px;
  transition: transform .35s var(--ease), visibility .35s var(--ease), opacity .35s var(--ease);
}
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #B9CAD7;
  font-size: 15px;
  font-weight: 600;
  padding: 9px 13px;
  border-radius: 9px;
  transition: color .2s var(--ease), background .2s var(--ease);
}
.nav-link:hover {
  color: var(--white);
  background: rgba(255, 255, 255, 0.06);
}
.nav-link.is-active {
  color: var(--white);
}
.nav-link.is-active::after {
  content: "";
  position: absolute;
  left: 13px;
  right: 13px;
  bottom: 2px;
  height: 2px;
  background: linear-gradient(90deg, rgba(17, 199, 217, 0.1), var(--cyan) 30%, #8CF0F7 70%, rgba(17, 199, 217, 0.1));
  clip-path: polygon(0 50%, 6px 0, calc(100% - 6px) 0, 100% 50%, calc(100% - 6px) 100%, 6px 100%);
  box-shadow: 0 0 12px rgba(17, 199, 217, 0.5);
}
.mobile-nav-label {
  display: none;
}
.header-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
}
.cmd-search {
  position: relative;
}
.cmd-box {
  display: flex;
  align-items: center;
  width: 250px;
  height: 40px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  padding: 0 12px;
  gap: 9px;
  color: var(--muted);
  transition: border-color .2s var(--ease), background .2s var(--ease), box-shadow .2s var(--ease);
}
.cmd-box:hover,
.cmd-search.is-open .cmd-box {
  border-color: rgba(17, 199, 217, 0.7);
  background: rgba(13, 22, 34, 0.92);
  box-shadow: inset 0 0 0 1px rgba(17, 199, 217, 0.14), 0 8px 24px rgba(0, 0, 0, 0.3);
}
.cmd-box i {
  font-size: 13px;
}
.cmd-box input {
  width: 100%;
  border: 0;
  outline: none;
  background: transparent;
  color: var(--white);
  font-size: 14px;
}
.cmd-box input::placeholder {
  color: #7C94A6;
}
.cmd-panel {
  position: absolute;
  right: 0;
  top: 48px;
  width: 278px;
  background: rgba(10, 18, 29, 0.97);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 10px;
  visibility: hidden;
  opacity: 0;
  transform: translateY(-8px);
  transition: all .25s var(--ease);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
}
.cmd-search.is-open .cmd-panel {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
}
.cmd-panel-title {
  font-size: 12px;
  color: var(--muted);
  padding: 8px 12px 5px;
  letter-spacing: 0.08em;
}
.cmd-panel a {
  display: flex;
  align-items: center;
  gap: 11px;
  color: var(--text);
  font-size: 14px;
  padding: 10px 12px;
  border-radius: 9px;
  transition: background .2s var(--ease), color .2s var(--ease);
}
.cmd-panel a:hover {
  background: rgba(17, 199, 217, 0.12);
  color: var(--white);
}
.cmd-panel a i {
  width: 16px;
  text-align: center;
  color: var(--cyan);
  font-size: 13px;
}
.quick-btn {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 16px;
  transition: all .2s var(--ease);
}
.quick-btn:hover {
  color: var(--cyan);
  border-color: rgba(17, 199, 217, 0.4);
  background: rgba(17, 199, 217, 0.1);
}
.btn-primary,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 10px;
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: 0.02em;
  border: 1px solid transparent;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, #0EAFBE, #11C7D9 45%, #36E2DC);
  color: #02141A;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.15) inset, 0 8px 26px rgba(17, 199, 217, 0.24);
}
.btn-primary:hover {
  color: #02141A;
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.2) inset, 0 14px 34px rgba(17, 199, 217, 0.34);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-ghost {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.16);
  color: var(--white);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover {
  border-color: rgba(17, 199, 217, 0.65);
  color: var(--cyan-light);
  transform: translateY(-2px);
  background: rgba(17, 199, 217, 0.08);
}
.nav-burger {
  display: none;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--line);
  border-radius: 10px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  z-index: 240;
  position: relative;
}
.nav-burger span {
  width: 17px;
  height: 2px;
  display: block;
  background: var(--white);
  border-radius: 2px;
  transition: transform .25s var(--ease), opacity .2s var(--ease);
}
body.menu-open .nav-burger span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
body.menu-open .nav-burger span:nth-child(2) {
  opacity: 0;
}
body.menu-open .nav-burger span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
main {
  position: relative;
}
.category-hero {
  position: relative;
  padding: 132px 0 72px;
  overflow: hidden;
  background-color: var(--bg);
  background-image: radial-gradient(720px 340px at 78% -12%, rgba(17, 199, 217, 0.16), transparent 70%);
}
.category-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("/assets/images/backpic/back-2.webp");
  background-size: cover;
  background-position: 82% 14%;
  opacity: 0.14;
  -webkit-mask-image: linear-gradient(90deg, transparent 20%, #000 100%);
  mask-image: linear-gradient(90deg, transparent 20%, #000 100%);
  pointer-events: none;
}
.category-hero .grid-container {
  position: relative;
  z-index: 3;
}
.breadcrumb-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 24px;
  font-size: 13px;
  color: var(--muted);
}
.breadcrumb-row a {
  color: var(--muted);
}
.breadcrumb-row a:hover {
  color: var(--cyan);
}
.crumb-sep {
  color: var(--muted);
  opacity: 0.6;
  font-size: 11px;
}
.crumb-current {
  color: rgba(198, 222, 236, 0.75);
}
.category-hero-grid {
  align-items: end;
}
.category-hero-copy {
  position: relative;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(17, 199, 217, 0.28);
  background: rgba(17, 199, 217, 0.1);
  color: #A7F0F5;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  padding: 4px 11px;
  border-radius: var(--radius-full);
  margin-bottom: 18px;
}
.category-hero-title {
  position: relative;
  font-size: clamp(40px, 5.6vw, 62px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
  padding-left: 22px;
  color: var(--white);
}
.category-hero-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 8px;
  width: 4px;
  border-radius: 6px;
  background: linear-gradient(180deg, var(--cyan), rgba(17, 199, 217, 0.16));
  box-shadow: 0 0 18px rgba(17, 199, 217, 0.7);
}
.hero-lead {
  max-width: 720px;
  color: #B7C9D8;
  font-size: 17px;
  line-height: 1.9;
  margin: 0 0 26px;
}
.hero-ctas {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.hero-ctas .btn-primary,
.hero-ctas .btn-ghost {
  min-height: 46px;
  padding: 0 20px;
}
.hero-rail {
  background: rgba(13, 22, 34, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: var(--radius-lg);
  padding: 4px 18px 14px;
  box-shadow: var(--shadow-soft);
  position: relative;
}
.hero-rail::after {
  content: "";
  position: absolute;
  right: 18px;
  top: 12px;
  width: 54px;
  height: 54px;
  background: radial-gradient(circle, rgba(237, 184, 75, 0.22), transparent 70%);
  pointer-events: none;
}
.rail-head {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 12px 0 8px;
  color: var(--white);
  font-weight: 700;
  font-size: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.rail-head i {
  color: var(--cyan);
}
.rail-item {
  padding: 12px 0 2px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.rail-item:last-child {
  border-bottom: 0;
}
.rail-label {
  font-size: 12px;
  color: var(--amber);
  margin-bottom: 2px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.rail-text {
  color: #DCE8F0;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 5px;
}
.rail-note {
  color: var(--muted);
  font-size: 13px;
}
.rail-count-line {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--muted);
  font-size: 12px;
  padding: 12px 0 2px;
}
.rail-count-line strong {
  color: var(--cyan);
  font-size: 22px;
  font-weight: 800;
}
.cat-section {
  padding: var(--section-space) 0;
}
.block-head {
  margin-bottom: 42px;
}
.block-head-inner {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}
.block-kicker {
  display: inline-flex;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  margin-bottom: 8px;
}
.block-title {
  font-size: clamp(28px, 4.2vw, 40px);
  line-height: 1.25;
  margin: 0;
}
.block-note {
  color: var(--muted);
  font-size: 14px;
  max-width: 360px;
  line-height: 1.7;
  position: relative;
  padding-left: 16px;
}
.block-note::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  bottom: 7px;
  width: 3px;
  background: linear-gradient(180deg, var(--cyan), var(--amber));
  border-radius: 4px;
  opacity: 0.55;
}
.magazine-grid {
  align-items: stretch;
}
.feature-cell {
  display: flex;
}
.magazine-card {
  background: linear-gradient(180deg, rgba(19, 33, 49, 0.92), rgba(10, 18, 29, 0.96));
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 18px;
  overflow: hidden;
  width: 100%;
  display: flex;
  flex-direction: column;
  transition: border-color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
  position: relative;
  box-shadow: var(--shadow-soft);
}
.magazine-card:hover {
  border-color: rgba(17, 199, 217, 0.45);
  box-shadow: 0 22px 48px rgba(0, 0, 0, 0.34), 0 0 0 1px rgba(17, 199, 217, 0.18);
}
.magazine-card .mag-media {
  position: relative;
  overflow: hidden;
  background: var(--surface);
  min-height: 248px;
}
.magazine-card .mag-img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  object-position: center;
  transition: transform .6s var(--ease);
}
.magazine-card:hover .mag-img {
  transform: scale(1.035);
}
.mag-floor {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  z-index: 2;
}
.tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(7, 17, 27, 0.72);
  border: 1px solid rgba(17, 199, 217, 0.35);
  color: #9EECF1;
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  padding: 6px 10px;
  border-radius: var(--radius-full);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.tag-pill--amber {
  border-color: rgba(237, 184, 75, 0.42);
  background: rgba(20, 18, 12, 0.8);
  color: #F6D38F;
}
.mag-body {
  padding: 22px 22px 18px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.mag-main-high {
  font-size: 12px;
  color: var(--amber);
  font-weight: 700;
  margin-bottom: 4px;
  letter-spacing: 0.1em;
}
.mag-title {
  color: var(--white);
  font-size: clamp(22px, 2.4vw, 30px);
  line-height: 1.35;
  margin: 6px 0 10px;
}
.mag-desc {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.78;
  margin-bottom: 20px;
}
.mag-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  width: fit-content;
  font-size: 14px;
  font-weight: 700;
  color: var(--cyan);
}
.mag-link i {
  transition: transform .2s var(--ease);
}
.mag-link:hover i {
  transform: translateX(5px);
}
.stack-cards {
  display: flex;
  flex-direction: column;
  height: 100%;
  gap: 24px;
}
.stack-card {
  background: rgba(13, 22, 34, 0.86);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  overflow: hidden;
  flex: 1;
  display: flex;
  transition: border-color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
  box-shadow: var(--shadow-soft);
}
.stack-card:hover {
  border-color: rgba(17, 199, 217, 0.4);
  transform: translateY(-2px);
  box-shadow: 0 20px 44px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(17, 199, 217, 0.12);
}
.stack-media {
  position: relative;
  overflow: hidden;
  flex: 0 0 40%;
  min-height: 160px;
}
.stack-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
  transition: transform .6s var(--ease);
}
.stack-card:hover .stack-media img {
  transform: scale(1.04);
}
.stack-body {
  padding: 21px 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.stack-cat {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 7px;
}
.stack-title {
  color: var(--white);
  font-size: 19px;
  line-height: 1.5;
  margin: 0 0 8px;
}
.stack-desc {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 14px;
}
.stack-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--amber);
  margin-top: auto;
}
.stack-link i {
  transition: transform .2s var(--ease);
}
.stack-link:hover i {
  transform: translateX(4px);
}
.timeline-section {
  background: linear-gradient(180deg, rgba(6, 12, 20, 0.35), rgba(6, 12, 20, 0.72));
  margin: 14px 0 0;
}
.timeline-zone {
  position: relative;
}
.timeline-card {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0;
  background: rgba(13, 22, 34, 0.68);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 15px;
  padding: 16px 24px 16px 28px;
  margin-bottom: 14px;
  transition: border-color .3s var(--ease), transform .3s var(--ease), background .3s var(--ease);
  overflow: hidden;
}
.timeline-card::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 50%;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px rgba(17, 199, 217, 0.9);
  transform: translateY(-50%);
}
.timeline-card:hover {
  border-color: rgba(17, 199, 217, 0.4);
  transform: translateX(4px);
  background: rgba(13, 22, 34, 0.92);
}
.timeline-card::after {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 2px;
  background: linear-gradient(180deg, transparent, rgba(17, 199, 217, 0.6), transparent);
  opacity: 0;
  transition: opacity .3s var(--ease);
}
.timeline-card:hover::after {
  opacity: 1;
}
.tl-index {
  flex: 0 0 58px;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-weight: 800;
  color: rgba(17, 199, 217, 0.55);
  font-size: 19px;
}
.tl-index span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px dashed rgba(17, 199, 217, 0.4);
  border-radius: 11px;
  font-size: 15px;
}
.tl-body {
  flex: 1;
  min-width: 0;
}
.tl-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 6px;
}
.tl-time {
  font-size: 12px;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.tl-time i {
  color: var(--cyan);
  font-size: 11px;
}
.tl-title {
  margin: 0 0 6px;
  color: var(--white);
  font-size: 18px;
  line-height: 1.5;
}
.tl-summ {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
  margin: 0;
  max-width: 720px;
}
.tl-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 10px;
  font-size: 13px;
  color: var(--cyan);
  font-weight: 600;
}
.tl-thumb {
  flex: 0 0 150px;
  height: 104px;
  margin-left: 24px;
  border-radius: 12px;
  overflow: hidden;
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.14);
}
.tl-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.cloud-wrap {
  background: rgba(13, 22, 34, 0.48);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 26px 28px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
}
.cloud-leading {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
  flex: 0 0 250px;
}
.cloud-leading strong {
  color: var(--white);
}
.cloud-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: var(--radius-full);
  color: #C7D7E3;
  font-size: 13px;
  padding: 7px 13px;
  transition: border-color .2s var(--ease), color .2s var(--ease), background .2s var(--ease);
}
.cloud-tag:hover {
  border-color: rgba(17, 199, 217, 0.5);
  color: var(--cyan-light);
  background: rgba(17, 199, 217, 0.08);
}
.cloud-tag i {
  font-size: 9px;
  color: var(--amber);
}
.faq-section {
  padding-top: 24px;
}
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
}
.faq-head-text {
  text-align: center;
  margin-bottom: 36px;
}
.faq-head-text .block-kicker {
  justify-content: center;
}
.faq-item {
  border-bottom: 1px solid rgba(17, 199, 217, 0.12);
}
.faq-item:first-child {
  border-top: 1px solid rgba(17, 199, 217, 0.12);
}
.faq-q {
  position: relative;
}
.faq-q button {
  width: 100%;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  text-align: left;
  background: transparent;
  border: 0;
  color: var(--white);
  padding: 23px 0;
  font-size: 17px;
  font-weight: 700;
  border-radius: 0;
}
.faq-no {
  font-size: 12px;
  color: var(--cyan);
  margin-top: 4px;
  font-weight: 800;
}
.faq-q-text {
  flex: 1;
}
.faq-q .faq-icon {
  flex-shrink: 0;
  width: 27px;
  height: 27px;
  border: 1px solid rgba(17, 199, 217, 0.3);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan);
  font-size: 12px;
  transition: transform .25s var(--ease), background .25s var(--ease), color .25s var(--ease);
}
.faq-item.open .faq-q button {
  color: var(--cyan-light);
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--cyan);
  color: #031A20;
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s var(--ease), padding .3s var(--ease);
}
.faq-item.open .faq-a {
  max-height: 260px;
  padding-bottom: 22px;
}
.faq-a-inner {
  padding-left: 43px;
  color: var(--text);
  font-size: 15px;
  line-height: 1.85;
}
.faq-a-inner p {
  margin: 0;
}
.faq-footnote {
  text-align: center;
  margin-top: 34px;
  color: var(--muted);
  font-size: 14px;
}
.faq-footnote a {
  color: var(--cyan);
  font-weight: 600;
}
.cta-section {
  padding: 40px 0 100px;
}
.cta-panel {
  position: relative;
  overflow: hidden;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: var(--surface);
  padding: clamp(44px, 7vw, 90px) clamp(20px, 6vw, 84px);
  text-align: center;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
}
.cta-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("/assets/images/backpic/back-1.png");
  background-size: cover;
  background-position: center 40%;
  opacity: 0.22;
  pointer-events: none;
}
.cta-panel::after {
  content: "";
  position: absolute;
  top: -30%;
  left: 50%;
  width: 480px;
  height: 320px;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(17, 199, 217, 0.28), transparent 68%);
  pointer-events: none;
}
.cta-panel > * {
  position: relative;
  z-index: 2;
}
.cta-kicker {
  display: inline-block;
  color: var(--amber);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.14em;
  margin-bottom: 16px;
}
.cta-title {
  font-size: clamp(30px, 4.6vw, 50px);
  color: var(--white);
  line-height: 1.25;
  margin: 0 auto 18px;
  max-width: 760px;
}
.cta-desc {
  max-width: 620px;
  margin: 0 auto 30px;
  color: #AFC4D4;
  font-size: 16px;
  line-height: 1.85;
}
.cta-panel .hero-ctas {
  justify-content: center;
}
.site-footer {
  background: rgba(5, 9, 15, 0.95);
  border-top: 1px solid rgba(17, 199, 217, 0.2);
  padding: 68px 0 22px;
  color: var(--muted);
}
.site-footer .site-logo {
  margin-bottom: 14px;
}
.brand-tail {
  max-width: 380px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.85;
  margin: 12px 0 0;
}
.footer-heading {
  color: var(--white);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  color: var(--muted);
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  transition: color .2s var(--ease), transform .2s var(--ease);
}
.footer-links a i {
  font-size: 6px;
  color: var(--cyan);
  opacity: 0.55;
}
.footer-links a:hover {
  color: var(--cyan-light);
  transform: translateX(3px);
}
.footer-note-copy {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.9;
  margin: 0;
}
.footer-bottom {
  margin-top: 48px;
  border-top: 1px solid rgba(255, 255, 255, 0.09);
  padding-top: 20px;
}
.footer-copyright {
  color: #7890A4;
  font-size: 13px;
}
.footer-time {
  color: #7890A4;
  font-size: 13px;
  text-align: right;
}
@media screen and (max-width: 1023px) {
  .main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    height: 100vh;
    width: 100%;
    max-width: 100%;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: rgba(7, 11, 18, 0.97);
    -webkit-backdrop-filter: blur(22px);
    backdrop-filter: blur(22px);
    padding: 100px 24px 30px;
    z-index: 170;
    transform: translateY(-100%);
    visibility: hidden;
    opacity: 1;
  }
  .mobile-nav-label {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--cyan);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.14em;
    margin-bottom: 18px;
    text-transform: uppercase;
  }
  .main-nav .nav-link {
    font-size: 21px;
    font-weight: 800;
    padding: 13px 18px;
    width: min(300px, 80vw);
    text-align: center;
    background: transparent;
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: 10px;
  }
  .nav-link.is-active {
    color: var(--cyan-light);
  }
  .nav-link.is-active::after {
    display: none;
  }
  .nav-burger {
    display: inline-flex;
  }
  .header-inner {
    gap: 10px;
  }
  .cmd-search {
    display: none;
  }
  .quick-btn {
    display: none;
  }
  .header-actions .btn-primary {
    padding: 0 13px;
  }
  .header-actions .btn-primary span {
    display: none;
  }
  .site-logo .brand-word {
    font-size: 18px;
  }
  .category-hero {
    padding: 110px 0 52px;
  }
  .hero-rail {
    margin-top: 30px;
  }
  .magazine-card .mag-img {
    height: 300px;
  }
  .timeline-card {
    align-items: flex-start;
    flex-wrap: wrap;
    padding: 18px 18px 18px 30px;
  }
  .tl-index {
    flex-basis: 30px;
  }
  .tl-thumb {
    flex-basis: 100%;
    height: 140px;
    margin: 16px 0 0;
  }
  .timeline-card:hover {
    transform: none;
  }
  .cloud-leading {
    flex-basis: 100%;
  }
  .cta-section {
    padding-bottom: 70px;
  }
  .footer-time {
    text-align: left;
    margin-top: 6px;
  }
}
@media screen and (max-width: 767px) {
  :root {
    --section-space: 64px;
  }
  .brand-sub {
    display: none;
  }
  .brand-word {
    font-size: 19px;
  }
  .header-inner {
    gap: 9px;
  }
  .header-actions .btn-primary {
    min-width: 42px;
    padding: 0 11px;
    font-size: 14px;
  }
  .header-actions .btn-primary i {
    margin: 0;
  }
  .header-actions .btn-primary span {
    display: none;
  }
  .btn-primary, .btn-ghost {
    min-height: 44px;
  }
  .category-hero-copy .hero-lead {
    font-size: 16px;
  }
  .category-hero-rail .hero-rail {
    margin-top: 22px;
  }
  .block-title {
    font-size: 27px;
  }
  .block-head-inner {
    align-items: flex-start;
    flex-direction: column;
  }
  .magazine-card .mag-img {
    height: 230px;
  }
  .mag-body {
    padding: 18px 16px;
  }
  .stack-cards {
    margin-top: 22px;
  }
  .stack-card {
    flex-direction: column;
  }
  .stack-media {
    flex: 0 0 auto;
    width: 100%;
    height: 180px;
  }
  .stack-body {
    padding: 17px 16px;
  }
  .tl-index {
    display: none;
  }
  .tl-time {
    font-size: 11px;
  }
  .tl-title {
    font-size: 16px;
  }
  .cloud-wrap {
    padding: 20px 15px;
  }
  .faq-a-inner {
    padding-left: 0;
  }
  .faq-wrap {
    padding: 0;
  }
  .cta-panel {
    border-radius: 18px;
  }
}

/* roulang page: category3 */
:root {
  --bg: #070B12;
  --bg-2: #0D1622;
  --panel: #111D2B;
  --panel-2: rgba(13, 22, 34, 0.72);
  --panel-3: rgba(17, 29, 43, 0.58);
  --line: rgba(255, 255, 255, 0.12);
  --line-soft: rgba(255, 255, 255, 0.06);
  --text: #F0F6FC;
  --text-2: #A6B7C6;
  --text-3: #6C7E8F;
  --primary: #11C7D9;
  --primary-deep: #0A8A9B;
  --amber: #EDB84B;
  --danger: #E25B6A;
  --radius: 16px;
  --radius-sm: 10px;
  --pill: 999px;
  --shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
  --space: 96px;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background-color: var(--bg);
  background-image: radial-gradient(circle at 50% -10%, rgba(17, 199, 217, 0.14) 0%, rgba(17, 199, 217, 0.02) 32%, transparent 60%), radial-gradient(circle at 90% 15%, rgba(237, 184, 75, 0.06) 0%, transparent 36%);
  background-repeat: no-repeat;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease, opacity 0.2s ease;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

button, input {
  font-family: inherit;
  font-size: 1rem;
}

.grid-container {
  max-width: 1280px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ===== 通用按钮 ===== */
.btn-primary, .btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 20px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, rgba(17, 199, 217, 0.22), transparent), var(--primary);
  color: #07131B;
  box-shadow: 0 0 0 1px rgba(17, 199, 217, 0.3), 0 8px 24px rgba(17, 199, 217, 0.22);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px rgba(17, 199, 217, 0.6), 0 14px 30px rgba(17, 199, 217, 0.26);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.14), transparent), var(--primary);
}

.btn-ghost {
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  border-color: rgba(17, 199, 217, 0.7);
  color: var(--primary);
  background: rgba(17, 199, 217, 0.08);
  transform: translateY(-2px);
}

.btn:focus-visible, .btn-primary:focus-visible, .btn-ghost:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 4px;
}

/* ===== 头部导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(7, 11, 18, 0.68);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.site-header.scrolled {
  background: rgba(7, 11, 18, 0.92);
  border-bottom-color: rgba(17, 199, 217, 0.2);
  box-shadow: 0 1px 0 rgba(17, 199, 217, 0.1), 0 16px 40px rgba(0, 0, 0, 0.25);
}

.header-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.site-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  flex-shrink: 0;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.02em;
  color: #061016;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.14), transparent), var(--primary);
  box-shadow: 0 0 0 1px rgba(17, 199, 217, 0.28), 0 6px 16px rgba(17, 199, 217, 0.22);
}

.brand-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  line-height: 1.2;
  min-width: 0;
}

.brand-word {
  font-size: 17px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.brand-sub {
  margin-top: 4px;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-3);
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.main-nav .nav-link {
  position: relative;
  height: 72px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  color: var(--text-2);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.main-nav .nav-link:hover {
  color: #fff;
}

.main-nav .nav-link.is-active {
  color: #fff;
  font-weight: 600;
}

.main-nav .nav-link.is-active::before {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 18px;
  height: 2px;
  border-radius: 4px;
  background: linear-gradient(90deg, transparent 0%, var(--primary) 18%, var(--primary) 82%, transparent 100%);
  filter: drop-shadow(0 0 6px rgba(17, 199, 217, 0.9));
  clip-path: polygon(6px 0, 100% 0, calc(100% - 6px) 100%, 0 100%);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.cmd-search {
  position: relative;
}

.cmd-box {
  width: 240px;
  height: 42px;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.055);
  color: var(--text-3);
  cursor: text;
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.cmd-box:focus-within {
  border-color: var(--primary);
  background: rgba(17, 199, 217, 0.07);
  box-shadow: inset 0 0 0 1px rgba(17, 199, 217, 0.15);
}

.cmd-box i {
  font-size: 14px;
}

.cmd-box input {
  width: 100%;
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 14px;
  line-height: 1;
  outline: none;
}

.cmd-box input::placeholder {
  color: var(--text-3);
}

.cmd-panel {
  display: none;
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 300px;
  padding: 14px;
  background: rgba(10, 17, 27, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  box-shadow: var(--shadow);
  z-index: 140;
}

.cmd-search.open .cmd-panel {
  display: block;
}

.cmd-panel-title {
  font-size: 12px;
  color: var(--text-3);
  margin: 10px 2px 6px;
  letter-spacing: 0.06em;
}

.cmd-panel-title:first-child {
  margin-top: 2px;
}

.cmd-panel a {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 40px;
  padding: 0 10px;
  border-radius: 10px;
  font-size: 14px;
  color: var(--text-2);
}

.cmd-panel a:hover {
  background: rgba(17, 199, 217, 0.12);
  color: #fff;
}

.cmd-panel a i {
  width: 18px;
  color: var(--primary);
  font-size: 13px;
  text-align: center;
}

.quick-btn {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.045);
  color: var(--text-2);
  transition: color 0.2s, border-color 0.2s, background 0.2s, box-shadow 0.2s;
}

.quick-btn:hover {
  color: var(--primary);
  border-color: rgba(17, 199, 217, 0.45);
  background: rgba(17, 199, 217, 0.08);
}

.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 0 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
}

.nav-burger span {
  display: inline-block;
  height: 2px;
  width: 100%;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s ease, background-color 0.3s ease, width 0.3s ease;
}

.nav-burger.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-burger.is-open span:nth-child(2) {
  transform: scaleX(0);
  opacity: 0;
}

.nav-burger.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== 分类页 Hero ===== */
.category-hero {
  position: relative;
  padding: 160px 0 60px;
  overflow: hidden;
}

.category-hero::after {
  content: "";
  position: absolute;
  width: 680px;
  height: 680px;
  left: 60%;
  top: -360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(17, 199, 217, 0.16), transparent 70%);
  pointer-events: none;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  font-size: 13px;
  color: var(--text-3);
  position: relative;
  z-index: 1;
}

.breadcrumbs li {
  display: flex;
  align-items: center;
  gap: 10px;
}

.breadcrumbs li + li::before {
  content: "";
  width: 5px;
  height: 5px;
  border-right: 1.5px solid rgba(255, 255, 255, 0.4);
  border-bottom: 1.5px solid rgba(255, 255, 255, 0.4);
  transform: rotate(-45deg);
  margin-right: 4px;
}

.breadcrumbs a {
  color: var(--text-2);
  font-weight: 500;
}

.breadcrumbs a:hover {
  color: var(--primary);
}

.breadcrumbs li:last-child {
  color: var(--text-2);
  font-weight: 500;
}

.category-hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-start;
  gap: 48px;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid rgba(237, 184, 75, 0.3);
  background: linear-gradient(180deg, rgba(237, 184, 75, 0.12), transparent);
  border-radius: 999px;
  color: var(--amber);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.03em;
  margin-bottom: 22px;
}

.hero-kicker i {
  font-size: 12px;
}

.category-hero h1 {
  position: relative;
  padding-left: 22px;
  margin: 0 0 24px;
  font-size: clamp(34px, 4.3vw, 52px);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: #fff;
}

.category-hero h1::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 4px;
  border-radius: 6px;
  background: linear-gradient(180deg, transparent, var(--primary), transparent);
  box-shadow: 0 0 14px rgba(17, 199, 217, 0.8);
}

.hero-lead {
  max-width: 590px;
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-2);
  margin: 0 0 30px;
}

.category-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-mini-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  max-width: 420px;
  margin-top: 26px;
}

.hero-stat-box {
  flex: 1 1 120px;
  padding: 18px 16px;
  background: rgba(17, 29, 43, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.hero-stat-box b {
  display: block;
  font-size: 28px;
  color: #fff;
  font-weight: 800;
}

.hero-stat-box span {
  font-size: 13px;
  color: var(--text-3);
}

/* ===== 板块通用 ===== */
.section-pad {
  padding: 96px 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 34px;
}

.section-head h2 {
  margin: 0 0 4px;
  font-size: clamp(24px, 2.2vw, 32px);
  font-weight: 800;
  color: #fff;
  line-height: 1.3;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 500;
  color: var(--primary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 5px 12px;
  border: 1px solid rgba(17, 199, 217, 0.25);
  border-radius: 999px;
  margin-bottom: 16px;
}

.section-sub {
  color: var(--text-3);
  max-width: 540px;
  line-height: 1.8;
  margin-top: 8px;
}

.section-holder {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-end;
}

/* ===== 特色内容区 ===== */
.feature-block {
  position: relative;
  padding: 0 0 30px;
}

.feature-wide-card {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  background: linear-gradient(180deg, rgba(17, 199, 217, 0.12), rgba(17, 199, 217, 0.02)), rgba(13, 22, 34, 0.86);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.feature-wide-card .feature-media {
  min-height: 340px;
  position: relative;
  overflow: hidden;
}

.feature-wide-card .feature-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}

.feature-wide-card .feature-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(270deg, rgba(7, 11, 18, 0.15), rgba(7, 11, 18, 0.55));
}

.feature-wide-card .feature-body {
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 999px;
  line-height: 1;
  letter-spacing: 0.02em;
  background: rgba(237, 184, 75, 0.14);
  color: var(--amber);
  border: 1px solid rgba(237, 184, 75, 0.25);
  margin-bottom: 18px;
}

.badge-cyan {
  background: rgba(17, 199, 217, 0.12);
  color: var(--primary);
  border-color: rgba(17, 199, 217, 0.3);
}

.feature-body h3, .feature-item h3, .timeline-title h3 {
  font-size: 24px;
  font-weight: 800;
  color: #fff;
  line-height: 1.4;
  margin: 0 0 16px;
}

.feature-body p, .feature-item p, .timeline-note p {
  color: var(--text-2);
  line-height: 1.9;
  margin: 0 0 20px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 6px 0 22px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 11px;
  font-size: 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text-2);
  background: rgba(255, 255, 255, 0.05);
}

.chip i {
  color: var(--primary);
  font-size: 11px;
}

.chip-gold {
  color: var(--amber);
  border-color: rgba(237, 184, 75, 0.2);
  background: rgba(237, 184, 75, 0.08);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  padding: 6px 0;
  border-bottom: 1px solid transparent;
}

.text-link:hover {
  color: #fff;
  border-bottom-color: rgba(17, 199, 217, 0.5);
}

.feature-sub-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-top: 24px;
}

.feature-item {
  display: grid;
  grid-template-columns: 1.2fr 0.85fr;
  min-height: 210px;
  background: rgba(13, 22, 34, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

.feature-item:hover {
  border-color: rgba(17, 199, 217, 0.5);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(17, 199, 217, 0.14);
  transform: translateY(-3px);
}

.feature-item .feature-text {
  padding: 26px 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.feature-item h3 {
  font-size: 19px;
  margin-bottom: 12px;
}

.feature-item p {
  font-size: 14px;
  margin-bottom: 16px;
  line-height: 1.8;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.feature-item .thumb {
  position: relative;
  min-height: 220px;
  overflow: hidden;
}

.feature-item .thumb img {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;
  inset: 0;
}

.feature-item .thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(13, 22, 34, 0.25), transparent 80%);
}

/* ===== 赛事数据看板 ===== */
.data-strip {
  padding: 48px 0;
}

.data-panel {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding: 38px 40px;
  background: linear-gradient(180deg, rgba(237, 184, 75, 0.09), rgba(17, 29, 43, 0.6)), rgba(13, 22, 34, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  box-shadow: var(--shadow);
}

.data-cell {
  position: relative;
  text-align: center;
  padding: 10px 8px;
}

.data-cell b {
  display: block;
  font-size: clamp(32px, 3.4vw, 44px);
  font-weight: 800;
  line-height: 1;
  color: #fff;
  font-variant-numeric: tabular-nums;
}

.data-cell b em {
  font-style: normal;
  font-size: 20px;
  color: var(--amber);
  margin-left: 4px;
  font-weight: 700;
}

.data-cell span {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  color: var(--text-2);
  letter-spacing: 0.04em;
}

.data-cell span i {
  color: var(--primary);
  margin-right: 5px;
}

/* ===== 时间线索引 ===== */
.track-section {
  position: relative;
  padding: 80px 0;
  background: linear-gradient(180deg, rgba(13, 22, 34, 0.6), rgba(13, 22, 34, 0.45));
}

.timeline-wrap {
  position: relative;
  margin: 0;
}

.timeline-wrap::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 14px;
  bottom: 14px;
  width: 1px;
  background: linear-gradient(180deg, var(--primary), rgba(255, 255, 255, 0.14), rgba(17, 199, 217, 0.2));
  opacity: 0.55;
}

.timeline-item {
  position: relative;
  padding-left: 64px;
  margin-bottom: 24px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 32px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 4px rgba(17, 199, 217, 0.15), 0 0 12px rgba(17, 199, 217, 0.6);
  z-index: 2;
}

.timeline-card {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  background: rgba(13, 22, 34, 0.74);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.18);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.timeline-card:hover {
  transform: translateX(6px);
  border-color: rgba(17, 199, 217, 0.55);
  box-shadow: 0 0 0 1px rgba(17, 199, 217, 0.18), 0 20px 44px rgba(0, 0, 0, 0.25);
}

.timeline-info {
  padding: 24px 28px;
}

.timeline-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.tl-date {
  font-size: 13px;
  color: var(--amber);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.tl-date i {
  font-size: 12px;
}

.tl-badge {
  font-size: 12px;
  color: var(--primary);
  border: 1px solid rgba(17, 199, 217, 0.25);
  background: rgba(17, 199, 217, 0.08);
  padding: 3px 10px;
  border-radius: 999px;
}

.timeline-info h3 {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  line-height: 1.5;
  margin: 0 0 10px;
}

.timeline-info p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.8;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.timeline-thumb {
  position: relative;
  min-height: 160px;
  overflow: hidden;
}

.timeline-thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.timeline-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(13, 22, 34, 0.35), rgba(13, 22, 34, 0.04));
}

/* ===== 词云标签 ===== */
.cloud-section {
  padding: 76px 0 40px;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  max-width: 860px;
}

.cloud-label-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 17px;
  border-radius: 999px;
  font-size: 14px;
  color: var(--text-2);
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(255, 255, 255, 0.09);
  transition: all 0.2s ease;
}

.cloud-label-item i {
  color: var(--primary);
  font-size: 12px;
}

.cloud-label-item:hover {
  color: var(--primary);
  border-color: rgba(17, 199, 217, 0.55);
  background: rgba(17, 199, 217, 0.08);
  transform: translateY(-2px);
}

/* ===== FAQ ===== */
.faq-section {
  padding: 24px 0 96px;
}

.faq-narrow {
  max-width: 860px;
  margin: 0 auto;
}

.accordion-item {
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.accordion-item:first-child {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.accordion-head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 22px 0;
  cursor: pointer;
  color: var(--text);
  transition: color 0.2s;
}

.accordion-head:hover {
  color: var(--primary);
}

.accordion-head .num {
  font-size: 13px;
  font-weight: 800;
  color: var(--primary);
  background: rgba(17, 199, 217, 0.1);
  border: 1px solid rgba(17, 199, 217, 0.22);
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  flex-shrink: 0;
}

.accordion-head h3 {
  flex: 1 1 auto;
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  color: inherit;
}

.accordion-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  color: var(--text-3);
  font-size: 18px;
  transition: transform 0.3s ease, color 0.3s ease;
}

.accordion-item.active .accordion-head {
  color: var(--primary);
}

.accordion-item.active .accordion-toggle {
  transform: rotate(45deg);
  color: var(--primary);
}

.accordion-panel {
  display: none;
  padding: 0 0 22px 42px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--text-2);
  max-width: 760px;
}

.accordion-item.active .accordion-panel {
  display: block;
}

/* ===== 底部 CTA ===== */
.cta-section {
  padding: 20px 0 96px;
}

.cta-panel {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  padding: 64px 48px;
  text-align: center;
  background: linear-gradient(90deg, rgba(17, 199, 217, 0.22), transparent, rgba(17, 199, 217, 0.12)), rgba(13, 22, 34, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.14);
  background-image: radial-gradient(circle at 25% 30%, rgba(237, 184, 75, 0.16), transparent 46%), radial-gradient(circle at 85% 60%, rgba(17, 199, 217, 0.2), transparent 48%);
  box-shadow: var(--shadow);
}

.cta-panel h2 {
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 800;
  color: #fff;
  margin: 0 0 12px;
  position: relative;
  z-index: 1;
}

.cta-panel p {
  max-width: 600px;
  margin: 0 auto 30px;
  color: var(--text-2);
  font-size: 16px;
  line-height: 1.8;
  position: relative;
  z-index: 1;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  position: relative;
  z-index: 1;
}

/* ===== 页脚 ===== */
.site-footer {
  margin-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(7, 11, 18, 0.92);
  padding: 54px 0 26px;
  font-size: 14px;
}

.site-footer .site-logo {
  margin-bottom: 18px;
}

.brand-tail {
  max-width: 320px;
  color: var(--text-3);
  font-size: 14px;
  line-height: 1.9;
  margin: 14px 0 0;
}

.footer-heading {
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
  position: relative;
  padding-left: 12px;
}

.footer-heading::before {
  content: "";
  position: absolute;
  left: 0;
  top: 3px;
  bottom: 3px;
  width: 3px;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--primary), transparent);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-start;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--text-2);
  font-size: 14px;
  padding: 4px 0;
  transition: color 0.2s, transform 0.2s;
}

.footer-links a i {
  font-size: 5px;
  color: var(--text-3);
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--primary);
  transform: translateX(4px);
}

.footer-links a:hover i {
  color: var(--primary);
}

.footer-note-copy {
  color: var(--text-3);
  font-size: 14px;
  line-height: 1.9;
  margin: 0;
  max-width: 380px;
}

.footer-bottom {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  font-size: 13px;
  color: var(--text-3);
}

.footer-time {
  text-align: right;
  color: var(--text-3);
  font-size: 13px;
}

/* ===== 响应式 ===== */
@media (max-width: 1180px) {
  .cmd-box {
    width: 200px;
  }

  .feature-wide-card {
    grid-template-columns: 1fr;
  }

  .feature-wide-card .feature-media {
    min-height: 300px;
  }

  .feature-wide-card .feature-media::after {
    background: linear-gradient(180deg, rgba(7, 11, 18, 0.08), rgba(7, 11, 18, 0.5));
  }
}

@media (max-width: 900px) {
  .nav-burger {
    display: inline-flex;
  }

  .site-header .btn-primary span, .site-header .btn-primary {
    display: none;
  }

  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    height: 100dvh;
    width: min(78%, 360px);
    flex-direction: column;
    align-items: stretch;
    background: rgba(7, 11, 18, 0.98);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    padding: 100px 24px 24px;
    gap: 10px;
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
    box-shadow: -20px 0 50px rgba(0, 0, 0, 0.35);
    z-index: 120;
    border-left: 1px solid rgba(255, 255, 255, 0.1);
    overflow-y: auto;
  }

  .main-nav.open {
    transform: translateX(0);
  }

  .main-nav .nav-link {
    height: auto;
    padding: 14px 10px;
    font-size: 17px;
    justify-content: flex-start;
    border-radius: 10px;
  }

  .main-nav .nav-link.is-active::before {
    content: "";
    position: absolute;
    left: 14px;
    right: auto;
    top: 8px;
    bottom: 8px;
    width: 3px;
    height: auto;
    background: var(--primary);
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
  }

  .cmd-panel {
    width: 280px;
  }

  .category-hero h1 {
    padding-left: 16px;
  }

  .data-panel {
    grid-template-columns: repeat(2, 1fr);
    padding: 30px 24px;
  }

  .feature-sub-cards {
    grid-template-columns: 1fr;
  }

  .feature-item {
    grid-template-columns: 1fr 0.8fr;
  }
}

@media (max-width: 640px) {
  .section-pad {
    padding: 64px 0;
  }

  .category-hero {
    padding-top: 126px;
  }

  .header-inner {
    gap: 10px;
  }

  .brand-word {
    font-size: 15px;
  }

  .brand-sub {
    font-size: 10px;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
  }

  .cmd-search {
    display: none;
  }

  .site-header {
    padding: 0 8px;
  }

  .grid-container {
    padding-left: 20px;
    padding-right: 20px;
  }

  .category-hero h1 {
    font-size: 34px;
  }

  .hero-lead {
    font-size: 16px;
  }

  .section-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .feature-wide-card .feature-body p {
    font-size: 15px;
  }

  .feature-body {
    padding: 26px 22px;
  }

  .feature-item {
    grid-template-columns: 1fr;
  }

  .feature-item .thumb {
    min-height: 190px;
    order: -1;
  }

  .timeline-item {
    padding-left: 42px;
  }

  .timeline-card {
    grid-template-columns: 1fr;
  }

  .timeline-thumb {
    min-height: 160px;
  }

  .timeline-thumb::after {
    background: linear-gradient(180deg, rgba(13, 22, 34, 0.2), rgba(13, 22, 34, 0.4));
  }

  .timeline-card:hover {
    transform: translateY(-4px);
  }

  .cta-panel {
    padding: 44px 24px;
  }

  .cta-actions .btn-primary, .cta-actions .btn-ghost {
    width: 100%;
  }

  .footer-time {
    text-align: left;
    margin-top: 8px;
  }

  .footer-bottom {
    display: block;
  }
}

/* roulang page: category4 */
:root {
  --bg-deep: #070B12;
  --bg-panel: #0D1622;
  --surface-glass: rgba(16, 28, 42, 0.65);
  --card-base: rgba(19, 31, 47, 0.68);
  --border-glass: rgba(255, 255, 255, 0.12);
  --border-soft: rgba(255, 255, 255, 0.08);
  --cyan: #11C7D9;
  --cyan-bright: #7CF3F8;
  --amber: #EDB84B;
  --danger: #CC4A55;
  --text-main: #F2F7FA;
  --text-strong: #FFFFFF;
  --text-weak: #8CA0B5;
  --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
  --radius-sm: 10px;
  --radius-card: 16px;
  --radius-lg: 24px;
  --shadow-card: 0 16px 40px rgba(0, 0, 0, 0.22);
  --container-width: 1280px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg-deep);
  color: var(--text-main);
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 56% 32% at 50% -8%, rgba(17, 199, 217, 0.10), transparent 72%),
    radial-gradient(ellipse 28% 20% at 92% 12%, rgba(17, 199, 217, 0.05), transparent 70%);
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid rgba(17, 199, 217, 0.75);
  outline-offset: 3px;
}
::-webkit-selection { background: rgba(17, 199, 217, 0.32); }
::selection { background: rgba(17, 199, 217, 0.32); }

.grid-container {
  max-width: var(--container-width);
  padding-left: 28px;
  padding-right: 28px;
}
.grid-container.narrow-980 { max-width: 980px; }

.skip-link {
  position: fixed;
  top: -60px;
  left: 16px;
  z-index: 999;
  padding: 10px 16px;
  background: var(--bg-panel);
  color: var(--cyan-bright);
  border: 1px solid var(--border-glass);
  border-radius: 10px;
  transition: top 0.2s ease;
}
.skip-link:focus { top: 12px; }

.section-glow {
  position: relative;
}
.section-glow::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 700px;
  height: 320px;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, rgba(17, 199, 217, 0.06), transparent);
  pointer-events: none;
}
.overflow-hidden { overflow: hidden; }

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 120;
  height: 72px;
  background: rgba(10, 15, 23, 0.62);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.site-header.is-scrolled {
  background: rgba(7, 11, 18, 0.86);
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.34);
  border-bottom-color: rgba(17, 199, 217, 0.28);
}
.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.site-logo {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex-shrink: 0;
}
.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(17, 199, 217, 0.32), rgba(17, 199, 217, 0.05));
  border: 1px solid rgba(17, 199, 217, 0.58);
  color: var(--cyan-bright);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.02em;
  box-shadow: 0 0 14px rgba(17, 199, 217, 0.18);
}
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.18;
}
.brand-word {
  font-size: 16px;
  color: var(--text-strong);
  font-weight: 800;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.brand-sub {
  margin-top: 3px;
  font-size: 11px;
  color: var(--text-weak);
  letter-spacing: 0.08em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 8px;
}
.nav-link {
  position: relative;
  display: block;
  padding: 12px 10px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  color: rgba(210, 226, 240, 0.9);
  border-radius: 8px;
  transition: color 0.24s ease, background 0.24s ease;
}
.nav-link:hover {
  color: var(--text-strong);
  background: rgba(255, 255, 255, 0.04);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 5px;
  height: 2px;
  background: linear-gradient(90deg, rgba(17, 199, 217, 0.9), rgba(17, 199, 217, 0.45));
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 100%, 12px 100%);
  opacity: 0;
  transform: scaleX(0.35);
  transform-origin: center;
  transition: opacity 0.24s ease, transform 0.24s ease;
}
.nav-link:hover::after,
.nav-link.is-active::after {
  opacity: 1;
  transform: scaleX(1);
}
.nav-link.is-active {
  color: var(--text-strong);
  text-shadow: 0 0 18px rgba(17, 199, 217, 0.22);
}

.header-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
}
.cmd-search {
  position: relative;
}
.cmd-box {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 248px;
  height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.13);
  color: var(--text-weak);
  cursor: text;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, width 0.25s ease;
}
.cmd-box i { font-size: 14px; }
.cmd-box input {
  width: 100%;
  min-width: 0;
  background: transparent;
  border: 0;
  outline: none;
  color: var(--text-main);
  font-size: 14px;
}
.cmd-box input::placeholder { color: rgba(140, 160, 181, 0.88); }
.cmd-box:focus-within {
  border-color: rgba(17, 199, 217, 0.66);
  box-shadow: inset 0 0 0 1px rgba(17, 199, 217, 0.35), 0 0 0 4px rgba(17, 199, 217, 0.1);
}
.cmd-panel {
  position: absolute;
  top: 52px;
  right: 0;
  width: 320px;
  padding: 14px;
  background: rgba(9, 15, 25, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 18px;
  box-shadow: 0 26px 60px rgba(0, 0, 0, 0.46);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  display: none;
  overflow: hidden;
}
.cmd-search.is-open .cmd-panel { display: block; }
.cmd-panel-title {
  padding: 14px 10px 6px;
  font-size: 11px;
  color: var(--text-weak);
  letter-spacing: 0.12em;
}
.cmd-panel-title:first-child { padding-top: 6px; }
.cmd-panel a {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  padding: 0 12px;
  border-radius: 10px;
  color: rgba(224, 238, 250, 0.92);
  font-size: 14px;
  font-weight: 500;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}
.cmd-panel a i { width: 18px; text-align: center; color: var(--cyan); }
.cmd-panel a:hover {
  background: rgba(17, 199, 217, 0.1);
  color: var(--text-strong);
  transform: translateX(3px);
}

.quick-btn {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(220, 235, 248, 0.9);
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.quick-btn:hover {
  background: rgba(17, 199, 217, 0.12);
  border-color: rgba(17, 199, 217, 0.5);
  color: var(--cyan-bright);
}

.btn-primary,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 44px;
  padding: 0 18px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.btn-primary {
  background: linear-gradient(135deg, #11C7D9, #0C9AAE);
  color: #05161C;
  font-weight: 800;
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: 0 8px 24px rgba(17, 199, 217, 0.24);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(17, 199, 217, 0.4);
  color: #03151A;
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 12px rgba(17, 199, 217, 0.3);
}
.btn-primary.large, .btn-ghost.large {
  height: 52px;
  padding: 0 26px;
  font-size: 16px;
}
.btn-ghost {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.28);
  color: var(--text-main);
}
.btn-ghost:hover {
  background: rgba(17, 199, 217, 0.12);
  border-color: rgba(17, 199, 217, 0.55);
  color: var(--text-strong);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.26);
}
.btn-ghost:active {
  transform: translateY(0);
}

.nav-burger {
  display: none;
  width: 42px;
  height: 42px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  padding: 0;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  cursor: pointer;
}
.nav-burger span {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 99px;
  background: rgba(240, 247, 253, 0.92);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.site-header.menu-open .nav-burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-header.menu-open .nav-burger span:nth-child(2) { opacity: 0; }
.site-header.menu-open .nav-burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Category hero ===== */
.category-hero {
  position: relative;
  padding: 158px 0 72px;
  overflow: hidden;
}
.category-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("/assets/images/backpic/back-2.webp") center / cover no-repeat;
  opacity: 0.12;
  pointer-events: none;
}
.category-hero::after {
  content: "";
  position: absolute;
  top: -250px;
  left: 50%;
  width: 820px;
  height: 560px;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, rgba(17, 199, 217, 0.11), transparent);
  pointer-events: none;
}
.breadcrumb {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13px;
  color: rgba(150, 169, 190, 0.75);
  margin-bottom: 34px;
}
.breadcrumb i { color: rgba(150, 169, 190, 0.4); font-size: 11px; }
.breadcrumb a { color: rgba(150, 169, 190, 0.8); transition: color 0.2s ease; }
.breadcrumb a:hover { color: var(--cyan-bright); }
.breadcrumb .current { color: rgba(255, 255, 255, 0.64); cursor: default; }

.hero-inner { position: relative; z-index: 1; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  border-radius: 999px;
  border: 1px solid rgba(17, 199, 217, 0.42);
  background: rgba(17, 199, 217, 0.08);
  color: var(--cyan-bright);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.category-hero h1 {
  margin: 24px 0 18px;
  padding-left: 24px;
  position: relative;
  display: inline-block;
  color: var(--text-strong);
  font-size: clamp(42px, 5vw, 58px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: 0.01em;
}
.category-hero h1::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.1em;
  bottom: 0.1em;
  width: 4px;
  border-radius: 99px;
  background: linear-gradient(to bottom, var(--cyan-bright), rgba(17, 199, 217, 0.22));
  box-shadow: 0 0 16px rgba(17, 199, 217, 0.7);
}
.hero-lead {
  max-width: 860px;
  font-size: 17px;
  line-height: 1.9;
  color: #B8CBE0;
  margin: 0;
}
.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 36px;
}

/* ===== Section heading ===== */
.section-head {
  margin-bottom: 44px;
}
.section-head.h-center { text-align: center; }
.section-head .label-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0.14em;
  margin-bottom: 8px;
}
.section-head h2 {
  margin: 0;
  color: var(--text-strong);
  font-size: clamp(28px, 3.4vw, 36px);
  line-height: 1.3;
  font-weight: 800;
}
.head-inline {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.head-subnote {
  max-width: 460px;
  color: var(--text-weak);
  font-size: 14px;
  padding-bottom: 6px;
}

/* ===== Featured magazine zone ===== */
.featured-zone {
  padding: 96px 0 106px;
  position: relative;
}
.feature-main { margin-bottom: 28px; }
.col-stack .side-card:last-child { margin-bottom: 0; }

.g-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: linear-gradient(158deg, rgba(24, 38, 56, 0.72), rgba(14, 23, 36, 0.64));
  border: 1px solid var(--border-glass);
  border-top-color: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: border-color 0.28s ease, box-shadow 0.28s ease, transform 0.28s ease;
}
.g-card:hover {
  border-color: rgba(17, 199, 217, 0.46);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.34), 0 0 24px rgba(17, 199, 217, 0.08);
  transform: translateY(-3px);
}
.side-card {
  margin-bottom: 24px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
}
.g-card-media {
  position: relative;
  overflow: hidden;
  background: var(--bg-panel);
}
.g-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease, opacity 0.3s ease;
}
.g-card:hover .g-card-media img { transform: scale(1.03); }
.feature-main .g-card-media { aspect-ratio: 16 / 10; }
.side-card .g-card-media { aspect-ratio: 16 / 8.6; }
.feature-main .g-card-body { padding: 28px 30px 30px; min-height: 230px; }

.badge-row { display: flex; gap: 10px; margin-bottom: 16px; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 11px;
  font-size: 12px;
  font-weight: 700;
  border-radius: 999px;
  line-height: 1.3;
  border: 1px solid transparent;
}
.badge-cyan {
  background: rgba(17, 199, 217, 0.15);
  color: var(--cyan-bright);
  border-color: rgba(17, 199, 217, 0.3);
}
.badge-amber {
  background: rgba(237, 184, 75, 0.15);
  color: var(--amber);
  border-color: rgba(237, 184, 75, 0.32);
}
.g-card h3 {
  color: var(--text-strong);
  font-size: 24px;
  font-weight: 800;
  line-height: 1.3;
  margin: 0 0 14px;
}
.side-card h3 {
  font-size: 20px;
  margin-bottom: 10px;
}
.g-card-body p {
  margin: 0;
  color: #B6C8DE;
  font-size: 15px;
  line-height: 1.85;
}
.side-card .g-card-body { padding: 22px 24px 24px; }
.tag-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(196, 215, 236, 0.92);
}
.text-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  font-size: 14px;
  font-weight: 800;
  color: var(--cyan-bright);
  transition: gap 0.2s ease, color 0.2s ease;
}
.text-cta:hover { color: var(--text-strong); gap: 13px; }

/* ===== Timeline ===== */
.timeline-zone {
  position: relative;
  padding: 104px 0 36px;
  border-top: 1px solid var(--border-soft);
  background: linear-gradient(180deg, rgba(13, 22, 34, 0.44), rgba(7, 11, 18, 0.08));
}
.tl-list {
  max-width: 1080px;
  margin: 54px auto 0;
}
.tl-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 116px;
  gap: 28px;
  align-items: center;
  padding: 28px 0;
  position: relative;
  border-bottom: 1px solid var(--border-soft);
  transition: transform 0.24s ease, border-color 0.24s ease, box-shadow 0.24s ease;
}
.tl-item:hover {
  transform: translateX(7px);
  border-bottom-color: rgba(17, 199, 217, 0.42);
}
.tl-axis { position: relative; align-self: stretch; }
.tl-axis::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 34px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, rgba(17, 199, 217, 0.5), rgba(17, 199, 217, 0.06));
}
.tl-item:last-child .tl-axis::before { display: none; }
.tl-dot {
  position: absolute;
  top: 31px;
  left: 3px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 6px rgba(17, 199, 217, 0.12), 0 0 14px rgba(17, 199, 217, 0.8);
}
.tl-content { min-width: 0; }
.tl-date {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  color: var(--cyan-bright);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.tl-content h3 {
  margin: 0 0 9px;
  color: var(--text-strong);
  font-size: 22px;
  font-weight: 800;
}
.tl-content p {
  margin: 0;
  color: #AEBFD4;
  font-size: 15px;
  line-height: 1.85;
}
.tl-content .tag-wrap { margin-top: 12px; }
.tl-thumb {
  width: 116px;
  height: 132px;
  overflow: hidden;
  border-radius: 15px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.03);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.24);
  transition: border-color 0.24s ease, transform 0.24s ease;
}
.tl-item:hover .tl-thumb {
  border-color: rgba(17, 199, 217, 0.52);
  transform: translateY(-2px);
}
.tl-thumb img { width: 100%; height: 100%; object-fit: cover; }

/* ===== Cloud tags ===== */
.topic-cloud {
  padding: 78px 0 84px;
  text-align: center;
}
.cloud-intro {
  color: var(--text-weak);
  font-size: 15px;
  margin-bottom: 22px;
}
.cloud-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  max-width: 780px;
  margin: 0 auto;
}
.cloud-tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 38px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.045);
  color: rgba(205, 222, 240, 0.9);
  font-size: 14px;
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}
.cloud-tag:hover {
  transform: translateY(-2px);
  border-color: rgba(17, 199, 217, 0.44);
  background: rgba(17, 199, 217, 0.1);
  color: var(--cyan-bright);
}
.cloud-tag::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgba(17, 199, 217, 0.65);
}
.cloud-tag:nth-child(4n)::before { background: rgba(237, 184, 75, 0.8); }
.cloud-tag:nth-child(6n)::before { background: rgba(237, 184, 75, 0.8); }

/* ===== FAQ ===== */
.faq-zone {
  padding: 60px 0 118px;
}
.faq-stage {
  max-width: 860px;
  margin: 0 auto;
}
.acc-item {
  border-bottom: 1px solid rgba(17, 199, 217, 0.14);
}
.acc-item:first-child { border-top: 1px solid rgba(17, 199, 217, 0.14); }
.acc-head {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 24px 4px;
  background: none;
  border: 0;
  text-align: left;
  cursor: pointer;
  color: inherit;
}
.acc-num {
  font-size: 13px;
  font-weight: 800;
  color: rgba(17, 199, 217, 0.65);
  min-width: 28px;
}
.acc-title {
  flex: 1;
  font-size: 17px;
  font-weight: 800;
  color: rgba(230, 240, 250, 0.94);
  transition: color 0.24s ease;
}
.acc-toggle {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  transition: background 0.24s ease, color 0.24s ease, transform 0.24s ease;
}
.acc-toggle i { transition: transform 0.35s ease; }
.acc-item.is-open .acc-toggle {
  background: var(--cyan);
  border-color: var(--cyan);
  color: #06151B;
}
.acc-item.is-open .acc-toggle i { transform: rotate(45deg); }
.acc-item.is-open .acc-title { color: var(--cyan-bright); }
.acc-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.acc-item.is-open .acc-body { max-height: 260px; }
.acc-panel {
  padding: 0 4px 26px 46px;
  color: #A9BAD1;
  font-size: 15px;
  line-height: 1.9;
  max-width: 720px;
}

/* ===== CTA Panel ===== */
.cta-zone { padding: 0 0 118px; }
.cta-panel {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 72px 46px;
  text-align: center;
  background: linear-gradient(160deg, rgba(16, 29, 44, 0.9), rgba(8, 15, 24, 0.92));
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
}
.cta-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("/assets/images/backpic/back-1.png") center / cover no-repeat;
  opacity: 0.1;
  pointer-events: none;
}
.cta-panel::after {
  content: "";
  position: absolute;
  top: -280px;
  left: 50%;
  transform: translateX(-50%);
  width: 620px;
  height: 480px;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(17, 199, 217, 0.18), transparent);
  pointer-events: none;
}
.cta-inner { position: relative; z-index: 1; }
.cta-inner .eyebrow { margin-bottom: 18px; }
.cta-inner h2 {
  max-width: 760px;
  margin: 0 auto 18px;
  color: var(--text-strong);
  font-size: clamp(30px, 4.4vw, 42px);
  line-height: 1.26;
  font-weight: 800;
}
.cta-inner p {
  max-width: 660px;
  margin: 0 auto 34px;
  color: #BCCDE0;
  font-size: 16px;
  line-height: 1.9;
}
.cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
}

/* ===== Footer ===== */
.site-footer {
  background: rgba(7, 12, 20, 0.96);
  border-top: 1px solid var(--border-soft);
  padding: 66px 0 28px;
}
.footer-brand { padding-right: 16px; }
.footer-heading {
  font-size: 16px;
  font-weight: 800;
  color: var(--text-strong);
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}
.footer-brand .brand-tail {
  margin: 18px 0 0;
  color: rgba(158, 177, 199, 0.82);
  font-size: 14px;
  line-height: 1.9;
  max-width: 340px;
}
.footer-brand .site-logo { margin-bottom: 8px; }
.footer-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}
.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: rgba(166, 184, 205, 0.86);
  font-size: 14px;
  transition: color 0.2s ease, transform 0.24s ease;
}
.footer-links a i {
  font-size: 5px;
  color: rgba(17, 199, 217, 0.66);
  transition: color 0.2s ease;
}
.footer-links a:hover {
  color: var(--cyan-bright);
  transform: translateX(4px);
}
.footer-note-copy {
  margin: 0;
  color: rgba(155, 174, 197, 0.76);
  font-size: 14px;
  line-height: 1.95;
  max-width: 400px;
}
.footer-number-lines { margin-top: 20px; }
.footer-bottom {
  margin-top: 52px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(148, 166, 188, 0.74);
  font-size: 13px;
}
.footer-time { text-align: right; }
@media (max-width: 767px) {
  .footer-time { text-align: left; margin-top: 8px; }
}

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .main-nav {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    position: fixed;
    top: 78px;
    left: 16px;
    right: 16px;
    z-index: 99;
    padding: 22px;
    border-radius: 20px;
    background: rgba(7, 11, 18, 0.97);
    border: 1px solid rgba(255, 255, 255, 0.14);
    box-shadow: 0 32px 70px rgba(0, 0, 0, 0.54);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    visibility: hidden;
    opacity: 0;
    transform: translateY(-12px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
  }
  .site-header.menu-open .main-nav {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
  }
  .main-nav .nav-link { font-size: 16px; padding: 12px 6px; width: 100%; }
  .nav-burger { display: flex; }
  .header-inner { gap: 14px; }
  .cmd-box { width: 220px; }
  .featured-zone, .timeline-zone { padding: 76px 0 40px; }
  .topic-cloud { padding: 56px 0 62px; }
  .faq-zone { padding-bottom: 90px; }
  .cta-zone { padding-bottom: 90px; }
  .cta-panel { padding: 56px 28px; }
}
@media (max-width: 767px) {
  .grid-container { padding-left: 18px; padding-right: 18px; }
  .site-header { height: 66px; }
  .header-inner { min-height: 66px; }
  .brand-word { font-size: 14px; max-width: 132px; white-space: normal; line-height: 1.3; }
  .brand-sub { font-size: 10px; }
  .brand-mark { width: 34px; height: 34px; font-size: 13px; }
  .cmd-box {
    width: 38px;
    padding: 0;
    justify-content: center;
    border-radius: 50%;
  }
  .cmd-box input {
    position: absolute;
    opacity: 0;
    width: 1px;
    height: 1px;
  }
  .cmd-box i { margin: 0; }
  .cmd-panel {
    position: fixed;
    top: 68px;
    right: 16px;
    left: 16px;
    width: auto;
  }
  .quick-btn { display: flex; width: 38px; height: 38px; border-radius: 50%; }
  .btn-primary { width: 38px; height: 38px; padding: 0; justify-content: center; border-radius: 50%; }
  .btn-primary span { display: none; }
  .nav-burger { width: 38px; height: 38px; border-radius: 50%; }
  .category-hero { padding: 120px 0 46px 0; }
  .category-hero h1 {
    font-size: 35px;
    padding-left: 18px;
    margin-top: 18px;
  }
  .hero-lead { font-size: 15px; }
  .hero-ctas { margin-top: 26px; }
  .section-head { margin-bottom: 30px; }
  .section-head h2 { font-size: 27px; }
  .feature-main .g-card-body { padding: 22px; }
  .side-card .g-card-body { padding: 19px; }
  .g-card h3 { font-size: 19px; }
  .side-card h3 { font-size: 18px; }
  .tag-wrap { gap: 7px; }
  .tl-item {
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 16px;
    padding: 24px 0;
  }
  .tl-thumb { display: none; }
  .tl-axis::before { left: 6px; }
  .tl-dot { left: 1px; top: 27px; }
  .cta-panel { border-radius: 18px; padding: 52px 18px 42px; }
  .cta-inner h2 { font-size: 30px; }
  .btn-primary.large, .btn-ghost.large { height: 48px; padding: 0 20px; }
  .faq-stage { margin-top: 6px; }
  .acc-head { padding: 20px 0; gap: 12px; }
  .acc-title { font-size: 16px; }
  .acc-panel { padding: 0 0 24px 38px; }
  .cloud-tags { gap: 9px; }
  .footer-bottom .footer-time { text-align: left; }
  .footer-time { margin-top: 4px; }
}
@media (max-width: 520px) {
  .brand-text { display: none; }
  .site-logo { gap: 0; }
  .header-inner { gap: 10px; }
  .header-actions { gap: 7px; }
  .header-actions .quick-btn { display: none; }
  .brand-sub { display: none; }
  .brand-word { font-size: 15px; white-space: nowrap; }
  .cmd-box { width: 38px; height: 38px; }
  .main-nav { top: 72px; }
  .hero-ctas .btn-ghost.large { padding: 0 18px; }
  .featured-zone, .timeline-zone { padding-top: 60px; }
  .tl-content h3 { font-size: 20px; }
}