/* roulang page: index */
:root{
  --ink-900:#05070F;
  --ink-800:#0A0F1F;
  --ink-700:#101830;
  --brand:#2FD9C4;
  --brand-soft:rgba(47,217,196,.12);
  --accent:#F2B84B;
  --violet:#6C6BFF;
  --text-h:#EAF0FF;
  --text:#A8B3CC;
  --text-dim:#6E7A96;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.04);
  --r-lg:16px;
  --r-md:12px;
  --r-btn:10px;
  --shadow-glass:0 0 0 1px rgba(255,255,255,.06) inset, 0 20px 60px -24px rgba(0,0,0,.8);
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  --font-geo:"Inter","Noto Sans SC",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Consolas,monospace;
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:radial-gradient(rgba(255,255,255,.07) 1px, transparent 1px);
  background-size:34px 34px;
  opacity:.35;
}
img{max-width:100%;display:block;border-radius:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:#7ff0e0;}
p{margin:0 0 16px;}
h1,h2,h3,h4{margin:0;color:var(--text-h);font-weight:700;line-height:1.25;letter-spacing:-.01em;}
ul,ol{margin:0 0 16px;padding-left:20px;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;}
::selection{background:rgba(47,217,196,.28);color:#fff;}

.container{
  width:100%;
  max-width:var(--max);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
@media (min-width:1440px){
  .container{max-width:1280px;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .22s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease, color .22s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--brand);
  color:#03110E;
  box-shadow:0 6px 22px -12px rgba(47,217,196,.9);
}
.btn-primary:hover{
  color:#03110E;
  transform:translateY(-2px);
  box-shadow:0 8px 30px -6px rgba(47,217,196,.55);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 14px -8px rgba(47,217,196,.7);}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:var(--line);
  color:var(--text-h);
}
.btn-ghost:hover{
  color:#fff;
  border-color:rgba(47,217,196,.55);
  background:rgba(47,217,196,.08);
  transform:translateY(-2px);
}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}

/* ---------- 标签 / 胶囊 ---------- */
.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:30px;
  padding:0 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--text);
}
.pill .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 10px rgba(47,217,196,.9);
}
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.06em;
  color:var(--accent);
  background:rgba(242,184,75,.10);
  border:1px solid rgba(242,184,75,.28);
}
.eyebrow{
  display:inline-block;
  font-size:12.5px;
  letter-spacing:.14em;
  color:var(--brand);
  text-transform:uppercase;
  margin-bottom:12px;
  font-family:var(--font-mono);
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(5,7,15,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .25s ease, border-color .25s ease;
}
.site-header.is-stuck{
  background:rgba(5,7,15,.94);
  border-bottom-color:var(--line);
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:20px;
  height:72px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--text-h);
}
.brand:hover{color:var(--text-h);}
.brand-mark{
  width:34px;height:34px;
  border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(140deg, rgba(47,217,196,.20), rgba(108,107,255,.20));
  border:1px solid rgba(47,217,196,.28);
  box-shadow:0 0 22px -10px rgba(47,217,196,.9);
}
.brand-mark svg{width:18px;height:18px;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:15.5px;font-weight:700;letter-spacing:.01em;}
.brand-sub{font-size:11px;letter-spacing:.12em;color:var(--text-dim);font-family:var(--font-mono);}

.nav-menu{
  display:flex;
  align-items:center;
  gap:4px;
  margin:0 0 0 8px;
  padding:0;
  list-style:none;
  flex:1 1 auto;
}
.nav-menu a{
  display:inline-flex;
  align-items:center;
  gap:7px;
  height:38px;
  padding:0 13px;
  border-radius:9px;
  font-size:14.5px;
  color:var(--text);
  white-space:nowrap;
  transition:color .2s ease, background .2s ease;
}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,.05);}
.nav-menu a.active{color:#fff;}
.nav-menu a.active::before{
  content:"";
  width:5px;height:5px;border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 10px rgba(47,217,196,.95);
}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.cmd-search{
  display:flex;
  align-items:center;
  gap:8px;
  width:220px;
  height:38px;
  padding:0 10px 0 12px;
  border-radius:10px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--text-dim);
  font-size:13px;
  transition:border-color .2s ease, color .2s ease, background .2s ease;
}
.cmd-search:hover,
.cmd-search:focus-visible{
  border-color:rgba(47,217,196,.55);
  color:var(--text);
  background:rgba(255,255,255,.06);
  outline:none;
}
.cmd-search svg{width:15px;height:15px;flex:0 0 auto;}
.cmd-search .key{
  margin-left:auto;
  font-family:var(--font-mono);
  font-size:11px;
  padding:1px 6px;
  border-radius:5px;
  border:1px solid var(--line);
  color:var(--text-dim);
}
.icon-btn{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:10px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--text);
  transition:border-color .2s ease, color .2s ease, transform .2s ease;
}
.icon-btn:hover{color:#fff;border-color:rgba(47,217,196,.5);transform:translateY(-1px);}
.icon-btn svg{width:16px;height:16px;}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  border-radius:10px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--text-h);
}
.nav-toggle svg{width:18px;height:18px;margin:0 auto;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:76px 0 92px;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(circle at 18% 26%, rgba(47,217,196,.13), transparent 46%),
    radial-gradient(circle at 82% 12%, rgba(108,107,255,.16), transparent 52%),
    radial-gradient(circle at 55% 90%, rgba(242,184,75,.06), transparent 48%);
}
.hero-grid{
  display:grid;
  grid-template-columns:1.04fr .96fr;
  gap:56px;
  align-items:center;
}
.hero-copy h1{
  font-size:clamp(30px, 4.2vw, 50px);
  line-height:1.22;
  margin:20px 0 18px;
  letter-spacing:-.02em;
}
.hero-copy h1 em{
  font-style:normal;
  background:linear-gradient(100deg, var(--brand), #8ef0e2 55%, var(--accent));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  font-size:16.5px;
  color:var(--text);
  max-width:520px;
  margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:42px;}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:0;
  border-top:1px solid var(--line);
  padding-top:24px;
}
.stat{
  padding-right:34px;
  margin-right:34px;
  border-right:1px solid var(--line);
}
.stat:last-child{border-right:0;padding-right:0;margin-right:0;}
.stat-num{
  display:block;
  font-family:var(--font-mono);
  font-size:28px;
  font-weight:500;
  color:var(--text-h);
  line-height:1.1;
  letter-spacing:-.02em;
}
.stat-num i{font-style:normal;color:var(--brand);}
.stat-label{font-size:12.5px;color:var(--text-dim);letter-spacing:.04em;}

.hero-panel{
  position:relative;
  border-radius:20px;
  padding:16px;
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-glass);
  transform:rotate(-1.4deg);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  min-height:400px;
}
.panel-visual{
  position:relative;
  height:368px;
  border-radius:14px;
  overflow:hidden;
  background:var(--ink-700);
}
.panel-visual img{
  width:100%;height:100%;
  object-fit:cover;
  opacity:.9;
}
.panel-visual::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(circle at 28% 22%, rgba(47,217,196,.28), transparent 55%),
    radial-gradient(rgba(255,255,255,.22) .8px, transparent .8px),
    linear-gradient(180deg, rgba(5,7,15,.25), rgba(5,7,15,.86));
  background-size:auto, 26px 26px, auto;
  opacity:.85;
}
.float-card{
  position:absolute;
  border-radius:var(--r-md);
  background:rgba(10,15,31,.78);
  border:1px solid rgba(255,255,255,.12);
  box-shadow:0 18px 44px -22px rgba(0,0,0,.95);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  padding:12px 16px;
}
.float-card--metric{
  left:-18px;
  bottom:52px;
  display:flex;
  align-items:baseline;
  gap:8px;
}
.fc-label{
  position:absolute;
  top:-20px;left:2px;
  font-size:11px;
  color:var(--text-dim);
  letter-spacing:.1em;
  font-family:var(--font-mono);
}
.fc-num{
  font-family:var(--font-mono);
  font-size:26px;
  color:var(--accent);
  font-weight:500;
  line-height:1;
}
.fc-unit{font-size:12px;color:var(--text);}
.float-card--status{
  right:-14px;
  top:34px;
  display:flex;
  align-items:center;
  gap:10px;
}
.status-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 0 4px rgba(47,217,196,.15);
  animation:pulse 2.6s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 4px rgba(47,217,196,.15);}
  50%{box-shadow:0 0 0 8px rgba(47,217,196,.05);}
}
.float-card--status strong{display:block;font-size:12.5px;color:var(--text-h);line-height:1.4;}
.float-card--status span{display:block;font-size:11px;color:var(--text-dim);line-height:1.4;}

/* ---------- 主张条 ---------- */
.claim-bar{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:rgba(255,255,255,.02);
  padding:16px 0;
}
.claim-list{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  align-items:center;
  margin:0;
  padding:0;
  list-style:none;
}
.claim-list li{
  position:relative;
  font-size:14.5px;
  color:var(--text);
  padding:0 24px;
  letter-spacing:.01em;
}
.claim-list li + li::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:1px;height:14px;
  background:var(--line);
}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;position:relative;}
.section-tight{padding:76px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:28px;
  margin-bottom:40px;
}
.section-head h2{font-size:clamp(24px,3vw,34px);}
.section-head p{margin:10px 0 0;font-size:15px;color:var(--text-dim);max-width:620px;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  color:var(--brand);
  white-space:nowrap;
  transition:gap .2s ease, color .2s ease;
}
.text-link:hover{gap:10px;color:#8bf3e5;}

/* ---------- 理念 ---------- */
.story-grid{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:56px;
  align-items:center;
}
.story-media{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-glass);
  aspect-ratio:4/3;
}
.story-media img{width:100%;height:100%;object-fit:cover;}
.story-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(160deg, rgba(47,217,196,.16), transparent 55%, rgba(5,7,15,.6));
}
.story-body h2{font-size:clamp(24px,3vw,34px);margin-bottom:18px;}
.story-body p{font-size:15.5px;color:var(--text);}
.points{
  display:flex;
  margin:32px 0 26px;
  position:relative;
  padding-top:24px;
}
.points::before{
  content:"";
  position:absolute;
  left:0;right:0;top:27px;
  height:1px;
  background:var(--line);
}
.point{flex:1;position:relative;padding-right:16px;}
.point::before{
  content:"";
  position:absolute;
  top:-24px;left:0;
  width:9px;height:9px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 0 4px rgba(47,217,196,.14);
}
.point-year{
  display:block;
  font-family:var(--font-mono);
  font-size:15px;
  color:var(--accent);
  margin-bottom:4px;
}
.point-desc{font-size:13px;color:var(--text-dim);line-height:1.6;}

/* ---------- 卡片 ---------- */
.card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow-glass);
  transition:transform .25s ease, border-color .25s ease, box-shadow .25s ease;
  display:flex;
  flex-direction:column;
  color:var(--text);
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,217,196,.32);
  color:var(--text);
}
.thumb{
  position:relative;
  overflow:hidden;
  background:var(--ink-700);
  flex:0 0 auto;
}
.thumb-16x9{aspect-ratio:16/9;}
.thumb-4x3{aspect-ratio:4/3;}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.card:hover .thumb img{transform:scale(1.05);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.card-title{
  font-size:17px;
  font-weight:600;
  color:var(--text-h);
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-desc{
  font-size:13.5px;
  color:var(--text-dim);
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-meta{
  margin-top:auto;
  padding-top:12px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:12.5px;
  color:var(--text-dim);
  font-family:var(--font-mono);
}
.card-meta .go{color:var(--brand);transition:transform .2s ease;}
.card:hover .card-meta .go{transform:translateX(4px);}

/* ---------- 精选网格 ---------- */
.featured-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
}
.feat-lead{
  grid-column:span 7;
  display:grid;
  grid-template-columns:1fr 1fr;
  align-items:stretch;
}
.feat-lead .thumb{height:100%;min-height:250px;aspect-ratio:auto;}
.feat-lead .card-body{padding:26px 26px 24px;}
.feat-lead .card-title{font-size:21px;-webkit-line-clamp:3;}
.feat-lead .card-desc{-webkit-line-clamp:3;font-size:14px;}
.feat-side{
  grid-column:span 5;
  display:grid;
  gap:24px;
  align-content:start;
}
.feat-mini{grid-column:span 6;}
.feat-mini .card-body{padding:18px 20px 20px;}
.feat-mini .card-title{font-size:16px;}

/* ---------- 资讯列表 ---------- */
.news-list{border-top:1px solid var(--line);}
.news-row{
  position:relative;
  display:grid;
  grid-template-columns:96px 92px minmax(0,1fr) 22px;
  align-items:center;
  gap:20px;
  padding:20px 6px 20px 14px;
  border-bottom:1px solid var(--line);
  color:var(--text-h);
  transition:background .2s ease, color .2s ease;
}
.news-row::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:2px;height:0;
  border-radius:2px;
  background:var(--brand);
  box-shadow:0 0 12px rgba(47,217,196,.8);
  transition:height .25s ease;
}
.news-row:hover{background:rgba(255,255,255,.025);color:var(--text-h);}
.news-row:hover::before{height:60%;}
.news-date{
  font-family:var(--font-mono);
  font-size:12.5px;
  color:var(--text-dim);
  letter-spacing:.02em;
  white-space:nowrap;
}
.news-cate{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  font-size:12px;
  color:var(--brand);
  background:var(--brand-soft);
  border:1px solid rgba(47,217,196,.24);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.news-main{min-width:0;display:block;}
.news-title{
  display:block;
  font-size:16.5px;
  font-weight:600;
  color:var(--text-h);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.news-desc{
  display:block;
  font-size:13.5px;
  color:var(--text-dim);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  margin-top:2px;
}
.news-arrow{
  color:var(--text-dim);
  transition:transform .2s ease, color .2s ease;
  font-size:16px;
}
.news-row:hover .news-arrow{transform:translateX(4px);color:var(--brand);}
.news-empty{
  border:1px dashed var(--line);
  border-radius:var(--r-lg);
  padding:52px 24px;
  text-align:center;
  color:var(--text-dim);
  background:rgba(255,255,255,.015);
}
.news-empty p{margin:0 0 18px;font-size:15px;}

/* ---------- 信任 ---------- */
.trust-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:44px;
  align-items:center;
}
.num-wall{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
}
.num-cell{
  background:var(--ink-800);
  padding:30px 26px;
  transition:background .25s ease;
}
.num-cell:hover{background:var(--ink-700);}
.num-cell strong{
  display:block;
  font-family:var(--font-mono);
  font-size:34px;
  font-weight:500;
  color:var(--text-h);
  line-height:1.1;
  letter-spacing:-.03em;
}
.num-cell strong i{font-style:normal;color:var(--brand);}
.num-cell span{display:block;margin-top:6px;font-size:13px;color:var(--text-dim);}
.quote-card{
  position:relative;
  border-radius:var(--r-lg);
  padding:38px 34px 30px;
  background:linear-gradient(150deg, rgba(47,217,196,.10), rgba(108,107,255,.10) 60%, rgba(255,255,255,.03));
  border:1px solid var(--line);
  box-shadow:var(--shadow-glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.quote-card::before{
  content:"“";
  font-family:Georgia,serif;
  font-size:64px;
  line-height:1;
  color:rgba(47,217,196,.5);
  position:absolute;
  top:10px;left:24px;
}
.quote-card blockquote{
  margin:0 0 20px;
  font-size:17px;
  line-height:1.85;
  color:var(--text-h);
  padding-top:16px;
}
.quote-src{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--text-dim);
  border-top:1px solid var(--line);
  padding-top:16px;
}
.quote-src b{color:var(--text);font-weight:600;}
.partners{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:16px;
  margin-top:44px;
}
.partner{
  height:58px;
  display:grid;
  place-items:center;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:rgba(255,255,255,.02);
  font-size:13px;
  color:var(--text-dim);
  letter-spacing:.08em;
  filter:grayscale(1);
  opacity:.55;
  transition:opacity .25s ease, filter .25s ease, border-color .25s ease, color .25s ease;
}
.partner:hover{
  opacity:1;
  filter:none;
  color:var(--text-h);
  border-color:rgba(47,217,196,.35);
}

/* ---------- 订阅 CTA ---------- */
.cta-panel{
  position:relative;
  border-radius:20px;
  border:1px solid var(--line);
  background:linear-gradient(118deg, rgba(47,217,196,.12), rgba(108,107,255,.12) 55%, rgba(255,255,255,.03));
  padding:48px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:44px;
  align-items:center;
  box-shadow:var(--shadow-glass);
  overflow:hidden;
}
.cta-panel::before{
  content:"";
  position:absolute;
  top:-60%;right:-10%;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(47,217,196,.18), transparent 68%);
  pointer-events:none;
}
.cta-panel h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;}
.cta-panel p{font-size:15px;color:var(--text);margin-bottom:0;}
.subscribe-form{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}
.subscribe-form input[type="email"]{
  flex:1 1 240px;
  min-width:0;
  height:48px;
  padding:0 16px;
  border-radius:var(--r-btn);
  background:rgba(5,7,15,.55);
  border:1px solid var(--line);
  color:var(--text-h);
  font-size:15px;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.subscribe-form input[type="email"]::placeholder{color:var(--text-dim);}
.subscribe-form input[type="email"]:focus{
  outline:none;
  border-color:rgba(47,217,196,.7);
  box-shadow:0 0 0 4px rgba(47,217,196,.12);
}
.cta-note{
  margin-top:16px;
  font-size:12.5px;
  color:var(--text-dim);
  display:flex;
  flex-wrap:wrap;
  gap:18px;
  align-items:center;
}
.cta-note a{color:var(--text);border-bottom:1px dotted rgba(255,255,255,.24);}
.cta-note a:hover{color:var(--brand);border-bottom-color:var(--brand);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#03050B;
  border-top:1px solid var(--line);
  padding:64px 0 0;
  margin-top:100px;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.5fr;
  gap:44px;
  padding-bottom:52px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:13.5px;color:var(--text-dim);line-height:1.85;max-width:320px;}
.footer-col h4{
  font-size:13px;
  letter-spacing:.12em;
  color:var(--text-h);
  margin-bottom:18px;
  font-weight:600;
}
.footer-col ul{margin:0;padding:0;list-style:none;}
.footer-col li{margin-bottom:10px;}
.footer-col a,
.footer-col span{font-size:13.5px;color:var(--text-dim);}
.footer-col a:hover{color:var(--brand);}
.footer-sub-form{display:flex;gap:10px;margin-top:6px;}
.footer-sub-form input{
  flex:1 1 auto;
  min-width:0;
  height:42px;
  padding:0 14px;
  border-radius:var(--r-btn);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--text-h);
  font-size:14px;
}
.footer-sub-form input::placeholder{color:var(--text-dim);}
.footer-sub-form input:focus{
  outline:none;
  border-color:rgba(47,217,196,.7);
  box-shadow:0 0 0 4px rgba(47,217,196,.1);
}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 26px;
  display:flex;
  flex-wrap:wrap;
  gap:12px 24px;
  align-items:center;
  justify-content:space-between;
  font-size:12.5px;
  color:var(--text-dim);
}
.footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom a{color:var(--text-dim);}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .nav-menu a{padding:0 10px;font-size:14px;}
  .cmd-search{width:170px;}
}
@media (max-width:1024px){
  .cmd-search{display:none;}
  .nav-toggle{display:grid;place-items:center;}
  .nav-menu{
    position:fixed;
    top:72px;left:0;right:0;bottom:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin:0;
    padding:12px 24px 40px;
    background:rgba(5,7,15,.98);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    overflow-y:auto;
    border-top:1px solid var(--line);
  }
  .nav-menu.is-open{display:flex;}
  .nav-menu a{
    height:60px;
    font-size:18px;
    border-bottom:1px solid var(--line);
    border-radius:0;
    padding:0 4px;
  }
  .nav-menu a.active::before{width:6px;height:6px;}
  .hero{padding:52px 0 68px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-panel{order:-1;transform:none;min-height:0;padding:14px;}
  .panel-visual{height:280px;}
  .float-card--metric{left:8px;bottom:34px;}
  .float-card--status{right:8px;top:22px;}
  .section{padding:72px 0;}
  .section-tight{padding:60px 0;}
  .story-grid{grid-template-columns:1fr;gap:36px;}
  .story-media{aspect-ratio:16/9;}
  .feat-lead{grid-column:span 12;grid-template-columns:1fr;}
  .feat-lead .thumb{aspect-ratio:16/9;min-height:0;}
  .feat-side{grid-column:span 12;grid-template-columns:1fr 1fr;}
  .feat-mini{grid-column:span 6;}
  .trust-grid{grid-template-columns:1fr;gap:32px;}
  .partners{grid-template-columns:repeat(3,1fr);}
  .cta-panel{grid-template-columns:1fr;gap:26px;padding:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:768px){
  .news-row{
    grid-template-columns:minmax(0,1fr) 20px;
    grid-template-areas:
      "date arrow"
      "cate arrow"
      "main arrow";
    gap:6px 14px;
    padding:18px 4px 18px 12px;
    align-items:center;
  }
  .news-date{grid-area:date;font-size:12px;}
  .news-cate{grid-area:cate;justify-self:start;}
  .news-main{grid-area:main;}
  .news-arrow{grid-area:arrow;align-self:center;}
  .news-title{white-space:normal;line-height:1.5;}
  .news-desc{display:none;}
  .feat-side{grid-template-columns:1fr;}
  .feat-mini{grid-column:span 12;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .claim-list{justify-content:flex-start;}
  .claim-list li{padding:4px 16px 4px 0;font-size:13.5px;}
  .claim-list li + li::before{display:none;}
  .cta-panel{padding:28px;}
}
@media (max-width:640px){
  .container{padding:0 18px;}
  .nav-wrap{height:64px;gap:12px;}
  .nav-menu{top:64px;padding:8px 18px 32px;}
  .brand-name{font-size:13.5px;}
  .brand-sub{font-size:10px;letter-spacing:.06em;}
  .brand-mark{width:30px;height:30px;}
  .brand-mark svg{width:16px;height:16px;}
  .nav-right .icon-btn{display:none;}
  .hero{padding:40px 0 56px;}
  .hero-copy h1{font-size:26px;margin:16px 0 14px;}
  .hero-sub{font-size:15px;margin-bottom:24px;}
  .hero-actions{gap:10px;margin-bottom:32px;}
  .hero-actions .btn{flex:1 1 auto;}
  .hero-panel{height:210px;min-height:0;overflow:hidden;padding:10px;}
  .panel-visual{height:190px;}
  .float-card{padding:8px 12px;border-radius:10px;}
  .fc-label{top:-17px;font-size:10px;}
  .fc-num{font-size:18px;}
  .fc-unit{font-size:10.5px;}
  .float-card--status{gap:8px;padding:8px 10px;}
  .float-card--status strong{font-size:11.5px;}
  .float-card--status span{font-size:10px;}
  .stat{padding-right:20px;margin-right:20px;}
  .stat-num{font-size:22px;}
  .stat-label{font-size:11.5px;}
  .section{padding:56px 0;}
  .points{flex-direction:column;gap:22px;padding-top:0;}
  .points::before{left:4px;right:auto;top:6px;bottom:6px;width:1px;height:auto;}
  .point{padding-left:24px;padding-right:0;}
  .point::before{top:5px;left:0;}
  .num-wall{grid-template-columns:1fr;}
  .num-cell{padding:22px 20px;}
  .num-cell strong{font-size:28px;}
  .partners{grid-template-columns:repeat(2,1fr);gap:12px;}
  .partner{height:48px;font-size:12px;}
  .quote-card{padding:32px 22px 24px;}
  .quote-card blockquote{font-size:15.5px;}
  .cta-panel{padding:24px;border-radius:16px;}
  .subscribe-form input[type="email"]{flex:1 1 100%;}
  .subscribe-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px;}
  .site-footer{margin-top:64px;padding-top:48px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
}

/* roulang page: category1 */
:root{
  --ink-900:#05070F;
  --ink-800:#0A0F1F;
  --ink-700:#101830;
  --brand:#2FD9C4;
  --brand-soft:rgba(47,217,196,.14);
  --accent:#F2B84B;
  --violet:#6C6BFF;
  --text:#EAF0FF;
  --text-body:#A8B3CC;
  --text-dim:#6E7A96;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.04);
  --radius:16px;
  --radius-sm:12px;
  --radius-btn:10px;
  --shadow:0 20px 60px -24px rgba(0,0,0,.8);
  --container:1200px;
  --mono:"JetBrains Mono","SFMono-Regular",Consolas,Menlo,monospace;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  --geo:"Inter","Space Grotesk","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-body);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;}
a:hover{color:#7DEFE0;}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:600;line-height:1.25;letter-spacing:-.01em;}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
@media (min-width:1440px){.container{max-width:1280px;}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:14.5px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
}
.btn-primary{background:var(--brand);color:#04120F;box-shadow:0 8px 24px -12px rgba(47,217,196,.7);}
.btn-primary:hover{background:#4CE7D3;color:#04120F;transform:translateY(-2px);box-shadow:0 8px 30px -6px rgba(47,217,196,.55);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 14px -8px rgba(47,217,196,.6);}
.btn-ghost{background:rgba(255,255,255,.03);border-color:var(--line-strong);color:var(--text);}
.btn-ghost:hover{background:rgba(255,255,255,.07);border-color:rgba(47,217,196,.55);color:#fff;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{min-height:38px;padding:0 16px;font-size:13.5px;border-radius:9px;}
.btn-link{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-size:14px;font-weight:600;}
.btn-link i{transition:transform .22s ease;}
.btn-link:hover i{transform:translateX(4px);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(5,7,15,.74);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{background:rgba(4,6,13,.95);border-bottom-color:var(--line);}
.nav-wrap{display:flex;align-items:center;gap:22px;height:74px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);flex-shrink:0;}
.brand-mark{width:28px;height:28px;display:block;flex-shrink:0;}
.brand-mark svg{width:100%;height:100%;display:block;filter:drop-shadow(0 0 8px rgba(47,217,196,.45));}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-name{font-size:16px;font-weight:700;color:var(--text);letter-spacing:.01em;}
.brand-sub{font-family:var(--mono);font-size:9.5px;letter-spacing:.18em;color:var(--text-dim);margin-top:3px;}
.nav-menu{display:flex;align-items:center;gap:2px;list-style:none;margin:0 0 0 12px;padding:0;}
.nav-menu a{
  display:inline-flex;align-items:center;gap:7px;height:40px;padding:0 14px;border-radius:9px;
  font-size:14.5px;color:var(--text-body);white-space:nowrap;
}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,.055);}
.nav-menu a.active{color:#fff;font-weight:600;}
.nav-menu a.active::before{
  content:"";width:5px;height:5px;border-radius:50%;background:var(--brand);
  box-shadow:0 0 10px rgba(47,217,196,.9);
}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto;}
.cmd-search{
  display:inline-flex;align-items:center;gap:8px;width:220px;height:40px;padding:0 10px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:9px;
  color:var(--text-dim);font-size:13px;cursor:pointer;transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.cmd-search svg{width:15px;height:15px;flex-shrink:0;}
.cmd-search:hover{border-color:rgba(47,217,196,.45);color:var(--text-body);background:rgba(255,255,255,.06);}
.cmd-search .key{
  margin-left:auto;font-family:var(--mono);font-size:10.5px;letter-spacing:.04em;
  border:1px solid var(--line-strong);border-radius:5px;padding:1px 5px;color:var(--text-dim);
}
.icon-btn{
  width:40px;height:40px;display:inline-grid;place-items:center;flex-shrink:0;
  background:transparent;border:1px solid var(--line);border-radius:9px;color:var(--text-body);
  cursor:pointer;transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.icon-btn svg{width:18px;height:18px;}
.icon-btn:hover{border-color:rgba(47,217,196,.5);color:var(--brand);background:rgba(47,217,196,.07);}
.nav-toggle{
  display:none;width:42px;height:42px;place-items:center;background:transparent;
  border:1px solid var(--line);border-radius:9px;color:var(--text);cursor:pointer;
}
.nav-toggle svg{width:20px;height:20px;}

@media (max-width:1080px){
  .cmd-search{width:44px;padding:0;justify-content:center;}
  .cmd-search span:not(.key){display:none;}
  .cmd-search .key{display:none;}
  .nav-menu{margin-left:6px;}
  .nav-menu a{padding:0 10px;font-size:14px;}
}
@media (max-width:960px){
  .nav-menu{
    position:fixed;left:0;right:0;top:74px;bottom:0;
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    margin:0;padding:20px 24px 40px;background:#05070F;overflow-y:auto;
    border-top:1px solid var(--line);
  }
  .nav-menu.open{display:flex;}
  .nav-menu a{height:56px;font-size:18px;padding:0 14px;border-bottom:1px solid var(--line);border-radius:0;}
  .nav-menu a.active::before{width:6px;height:6px;}
  .nav-toggle{display:grid;}
  .icon-btn{display:none;}
  .site-header .btn-primary.btn-sm{min-height:38px;padding:0 14px;}
}
@media (max-width:520px){
  .brand-name{font-size:14.5px;}
  .brand-sub{font-size:8.5px;letter-spacing:.12em;}
  .site-header .btn-primary.btn-sm{display:none;}
  .nav-wrap{height:66px;gap:12px;}
  .nav-menu{top:66px;}
}

/* ---------- page hero ---------- */
.page-hero{position:relative;overflow:hidden;padding:78px 0 76px;background:var(--ink-900);}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity:.32;filter:saturate(.9);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 18% 24%,rgba(47,217,196,.16),transparent 42%),
    radial-gradient(circle at 82% 12%,rgba(108,107,255,.18),transparent 46%),
    radial-gradient(circle at 1px 1px,rgba(255,255,255,.16) 1px,transparent 0) 0 0/26px 26px,
    linear-gradient(180deg,rgba(5,7,15,.62),rgba(5,7,15,.96));
  opacity:.9;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.hero-grid{margin-left:-28px;margin-right:-28px;}
.hero-grid > .cell{padding-left:28px;padding-right:28px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  border:1px solid rgba(47,217,196,.34);background:rgba(47,217,196,.08);
  color:var(--brand);font-size:12px;letter-spacing:.1em;font-weight:600;margin-bottom:22px;
}
.eyebrow .dot{width:5px;height:5px;border-radius:50%;background:var(--brand);box-shadow:0 0 8px var(--brand);}
.page-hero h1{
  font-size:44px;line-height:1.2;font-weight:700;letter-spacing:-.02em;
  color:#F4F8FF;margin-bottom:20px;max-width:15em;
}
.page-hero h1 em{font-style:normal;color:var(--brand);}
.hero-lead{font-size:16.5px;line-height:1.9;color:var(--text-body);max-width:36em;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:30px;}
.hero-facts .fact strong{
  display:block;font-family:var(--mono);font-size:26px;font-weight:600;color:var(--text);line-height:1.2;
}
.hero-facts .fact span{font-size:12.5px;color:var(--text-dim);letter-spacing:.04em;}
.hero-note{
  position:relative;padding:28px 26px;border-radius:var(--radius);
  background:rgba(255,255,255,.045);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.hero-note::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
}
.hero-note h2{font-size:15px;letter-spacing:.06em;color:var(--text);margin-bottom:12px;}
.hero-note p{font-size:14.5px;line-height:1.9;color:var(--text-body);margin-bottom:18px;}
.hero-note ul{list-style:none;display:grid;gap:12px;}
.hero-note li{display:flex;gap:10px;font-size:13.5px;color:var(--text-body);line-height:1.7;}
.hero-note li i{color:var(--brand);font-size:12px;margin-top:6px;}
@media (max-width:960px){
  .page-hero{padding:56px 0 52px;}
  .page-hero h1{font-size:34px;}
  .hero-grid{margin-left:0;margin-right:0;}
  .hero-grid > .cell{padding-left:0;padding-right:0;}
  .hero-note{margin-top:34px;}
  .hero-facts{gap:22px;}
}
@media (max-width:520px){
  .page-hero h1{font-size:27px;}
  .hero-lead{font-size:15px;}
  .hero-facts .fact strong{font-size:22px;}
}

/* ---------- section base ---------- */
.section{padding:96px 0;}
.section.tight{padding:72px 0;}
.section-alt{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:46px;flex-wrap:wrap;}
.section-head h2{font-size:33px;line-height:1.3;letter-spacing:-.02em;}
.section-head h2 span{display:block;font-family:var(--mono);font-size:12px;letter-spacing:.22em;color:var(--brand);margin-bottom:12px;font-weight:500;}
.section-head p{font-size:15px;color:var(--text-dim);max-width:32em;margin:0;}
@media (max-width:960px){
  .section{padding:72px 0;}
  .section-head h2{font-size:26px;}
}
@media (max-width:520px){
  .section{padding:56px 0;}
  .section-head h2{font-size:23px;}
}

/* ---------- timeline ---------- */
.timeline{list-style:none;margin:0;padding:0;}
.tl-item{
  position:relative;display:grid;grid-template-columns:150px 1fr;gap:38px;
  padding:26px 0;
}
.tl-item::before{
  content:"";position:absolute;top:0;bottom:0;left:169px;width:1px;background:var(--line);
}
.tl-item:last-child::before{background:linear-gradient(180deg,var(--line),transparent);}
.tl-item::after{
  content:"";position:absolute;left:164px;top:36px;width:11px;height:11px;border-radius:50%;
  background:var(--ink-900);border:2px solid var(--brand);box-shadow:0 0 14px rgba(47,217,196,.65);
}
.tl-year{
  font-family:var(--mono);font-size:20px;font-weight:600;color:var(--brand);
  text-align:right;letter-spacing:.02em;line-height:1.6;
}
.tl-year small{display:block;font-size:11px;color:var(--text-dim);letter-spacing:.12em;font-weight:400;}
.tl-body{padding-left:36px;}
.tl-body h3{font-size:19px;margin-bottom:8px;color:var(--text);}
.tl-body p{font-size:14.5px;line-height:1.85;color:var(--text-body);margin:0;max-width:44em;}
@media (max-width:760px){
  .tl-item{grid-template-columns:1fr;gap:10px;padding:22px 0 22px 26px;}
  .tl-item::before{left:5px;}
  .tl-item::after{left:0;top:28px;}
  .tl-year{text-align:left;font-size:17px;}
  .tl-body{padding-left:0;}
}

/* ---------- principles ---------- */
.principle{
  display:grid;grid-template-columns:1fr 1.85fr;gap:56px;align-items:start;
  padding:44px 0;border-top:1px solid var(--line);
}
.principle:last-of-type{border-bottom:1px solid var(--line);}
.principle.rev .pr-head{grid-column:2;grid-row:1;}
.principle.rev .pr-text{grid-column:1;grid-row:1;text-align:left;}
.pr-num{
  display:block;font-family:var(--mono);font-size:13px;letter-spacing:.22em;
  color:var(--accent);margin-bottom:14px;
}
.pr-head h3{font-size:24px;line-height:1.4;letter-spacing:-.01em;}
.pr-text p{font-size:15.5px;line-height:1.9;color:var(--text-body);max-width:46em;}
.pr-text p:last-child{margin-bottom:0;}
.pr-text .pr-tag{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;padding:5px 12px;border-radius:999px;
  border:1px solid var(--line-strong);font-size:12px;color:var(--text-dim);letter-spacing:.06em;
}
@media (max-width:900px){
  .principle,.principle.rev{grid-template-columns:1fr;gap:18px;}
  .principle.rev .pr-head{grid-column:1;grid-row:1;}
  .principle.rev .pr-text{grid-column:1;grid-row:2;}
  .pr-head h3{font-size:21px;}
}

/* ---------- quote ---------- */
.quote-wrap{padding:0 0 96px;}
.quote-panel{
  position:relative;padding:52px 56px;border-radius:20px;overflow:hidden;
  background:linear-gradient(135deg,rgba(47,217,196,.09),rgba(108,107,255,.07) 60%,rgba(255,255,255,.03));
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.quote-panel::after{
  content:"“";position:absolute;right:36px;top:-24px;font-family:var(--geo);
  font-size:160px;line-height:1;color:rgba(47,217,196,.12);pointer-events:none;
}
.quote-panel blockquote{
  margin:0 0 22px;font-size:25px;line-height:1.62;color:#F1F6FF;font-weight:600;
  letter-spacing:-.01em;max-width:26em;position:relative;z-index:2;
}
.quote-source{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-dim);letter-spacing:.05em;}
.quote-source::before{content:"";width:26px;height:1px;background:var(--brand);}
@media (max-width:760px){
  .quote-wrap{padding-bottom:60px;}
  .quote-panel{padding:32px 26px;}
  .quote-panel blockquote{font-size:19px;}
  .quote-panel::after{font-size:110px;right:16px;}
}

/* ---------- gallery ---------- */
.gallery{display:grid;grid-template-columns:repeat(12,1fr);gap:18px;}
.media{
  position:relative;overflow:hidden;border-radius:var(--radius);
  border:1px solid var(--line);background:var(--ink-700);margin:0;
}
.media img{width:100%;height:100%;object-fit:cover;transition:transform .7s cubic-bezier(.2,.7,.3,1);}
.media:hover img{transform:scale(1.04);}
.media figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:34px 18px 14px;
  font-size:12.5px;color:#DCE6FA;letter-spacing:.03em;
  background:linear-gradient(180deg,transparent,rgba(5,7,15,.86));
}
.g-a{grid-column:span 7;aspect-ratio:16/9;}
.g-b{grid-column:span 5;aspect-ratio:4/3;}
.g-c{grid-column:span 5;aspect-ratio:4/3;}
.g-d{grid-column:span 7;aspect-ratio:16/9;}
@media (max-width:900px){
  .gallery{gap:14px;}
  .g-a,.g-b,.g-c,.g-d{grid-column:span 12;aspect-ratio:16/9;}
}

/* ---------- cta bar ---------- */
.cta-section{padding:0 0 100px;}
.cta-bar{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:38px 44px;border-radius:20px;position:relative;overflow:hidden;
  background:rgba(255,255,255,.045);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.cta-bar::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 8% 20%,rgba(47,217,196,.16),transparent 45%);
  pointer-events:none;
}
.cta-bar > *{position:relative;z-index:2;}
.cta-bar h2{font-size:25px;margin-bottom:8px;letter-spacing:-.01em;}
.cta-bar p{font-size:14.5px;color:var(--text-dim);margin:0;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex-shrink:0;}
@media (max-width:860px){
  .cta-bar{flex-direction:column;align-items:flex-start;padding:30px 26px;}
  .cta-bar h2{font-size:21px;}
  .cta-section{padding-bottom:72px;}
}

/* ---------- footer ---------- */
.site-footer{background:#03050B;border-top:1px solid var(--line);padding:70px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1.2fr 1.2fr;gap:48px;padding-bottom:52px;}
.footer-brand p{font-size:13.5px;color:var(--text-dim);line-height:1.95;margin:16px 0 0;max-width:330px;}
.footer-col h4{font-size:13px;letter-spacing:.1em;color:var(--text);margin-bottom:16px;font-weight:600;}
.footer-col ul{list-style:none;display:grid;gap:11px;margin:0;padding:0;}
.footer-col li{font-size:13.5px;color:var(--text-dim);line-height:1.7;}
.footer-col a{color:var(--text-dim);font-size:13.5px;}
.footer-col a:hover{color:var(--brand);}
.footer-sub-form{display:flex;gap:8px;}
.footer-sub-form input{
  flex:1;min-width:0;height:38px;padding:0 12px;border-radius:9px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--text);font-size:13px;transition:border-color .2s ease,box-shadow .2s ease;
}
.footer-sub-form input::placeholder{color:var(--text-dim);}
.footer-sub-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(47,217,196,.14);}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0 30px;
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:var(--text-dim);letter-spacing:.02em;
}
.footer-bottom .links{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom .links a{color:var(--text-dim);font-size:12.5px;}
.footer-bottom .links a:hover{color:var(--brand);}
@media (max-width:960px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:640px){
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:40px;}
  .site-footer{padding-top:52px;}
}

/* roulang page: article */
:root{
  --ink-900:#05070F;
  --ink-800:#0A0F1F;
  --ink-700:#101830;
  --brand:#2FD9C4;
  --brand-deep:#24C4B1;
  --accent:#F2B84B;
  --violet:#6C6BFF;
  --text-head:#EAF0FF;
  --text-body:#A8B3CC;
  --text-dim:#6E7A96;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.13);
  --glass:rgba(255,255,255,.04);
  --glass-strong:rgba(255,255,255,.07);
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-card:0 20px 60px -24px rgba(0,0,0,.8), 0 0 0 1px rgba(255,255,255,.04) inset;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace;
  --header-h:76px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  min-width:320px;
  background:
    radial-gradient(circle at 14% 10%,rgba(108,107,255,.12),transparent 28%),
    radial-gradient(circle at 86% 2%,rgba(47,217,196,.08),transparent 26%),
    var(--ink-900);
  color:var(--text-body);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.nav-open{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .22s ease,opacity .22s ease,border-color .22s ease,background .22s ease,transform .22s ease;}
a:hover{color:#7FF7E8;}
button,input,select,textarea{font:inherit;}
button{color:inherit;}
button{cursor:pointer;}
::selection{background:rgba(47,217,196,.28);color:#FFFFFF;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;}
h1,h2,h3,h4,h5,h6{color:var(--text-head);margin:0;font-weight:700;line-height:1.25;letter-spacing:-.015em;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1440px){
  .container{max-width:1280px;}
}
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(5,7,15,.76);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(5,7,15,.94);
  border-bottom-color:rgba(255,255,255,.1);
  box-shadow:0 18px 40px -28px rgba(0,0,0,.95);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:28px;min-height:var(--header-h);}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-head);flex-shrink:0;}
.brand:hover{color:var(--text-head);}
.brand-mark{width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;background:rgba(47,217,196,.08);border:1px solid rgba(47,217,196,.18);box-shadow:0 0 24px -8px rgba(47,217,196,.5);}
.brand-mark svg{width:22px;height:22px;}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.brand-sub{font-family:var(--font-mono);font-size:9px;letter-spacing:.18em;color:var(--text-dim);margin-top:4px;white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0;}
.nav-menu a{display:inline-flex;align-items:center;gap:7px;min-height:44px;padding:0 12px;border-radius:8px;color:var(--text-body);font-size:14px;white-space:nowrap;transition:color .22s ease,background .22s ease;}
.nav-menu a::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--brand);opacity:0;box-shadow:0 0 10px var(--brand);transition:opacity .22s ease;}
.nav-menu a:hover{color:#FFFFFF;background:rgba(255,255,255,.04);}
.nav-menu a.active{color:#FFFFFF;}
.nav-menu a.active::before{opacity:1;}
.nav-right{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.cmd-search{display:inline-flex;align-items:center;gap:8px;width:220px;height:44px;padding:0 12px;border-radius:10px;border:1px solid var(--line);background:rgba(255,255,255,.035);color:var(--text-dim);font-size:13px;cursor:pointer;transition:border-color .22s ease,background .22s ease,color .22s ease,box-shadow .22s ease;}
.cmd-search svg{width:16px;height:16px;flex:none;}
.cmd-search .key{margin-left:auto;border:1px solid rgba(255,255,255,.1);border-radius:5px;padding:1px 5px;font-family:var(--font-mono);font-size:10px;color:var(--text-dim);}
.cmd-search:hover{border-color:rgba(47,217,196,.4);color:var(--text-body);background:rgba(47,217,196,.06);}
.cmd-search:focus-visible{outline:2px solid var(--brand);outline-offset:3px;box-shadow:0 0 0 4px rgba(47,217,196,.1);}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:rgba(255,255,255,.035);color:var(--text-body);transition:border-color .22s ease,background .22s ease,color .22s ease,transform .22s ease;}
.icon-btn svg{width:19px;height:19px;}
.icon-btn:hover{color:#FFFFFF;border-color:rgba(47,217,196,.5);background:rgba(47,217,196,.08);transform:translateY(-1px);}
.nav-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:rgba(255,255,255,.035);cursor:pointer;color:var(--text-head);}
.nav-toggle svg{width:22px;height:22px;}
.nav-toggle:hover{border-color:rgba(47,217,196,.45);background:rgba(47,217,196,.08);}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 20px;border-radius:10px;border:1px solid transparent;font-weight:600;font-size:14px;line-height:1;cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;white-space:nowrap;}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#03100F;box-shadow:0 8px 30px -10px rgba(47,217,196,.65);}
.btn-primary:hover{color:#03100F;transform:translateY(-2px);box-shadow:0 8px 30px -6px rgba(47,217,196,.55);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 18px -8px rgba(47,217,196,.5);}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line);color:var(--text-head);}
.btn-ghost:hover{border-color:rgba(47,217,196,.5);background:rgba(47,217,196,.08);color:#FFFFFF;transform:translateY(-2px);}
.btn-sm{min-height:44px;padding:0 16px;font-size:13.5px;}
.article-hero{position:relative;padding:36px 0 72px;background:linear-gradient(180deg,rgba(5,7,15,.62),rgba(5,7,15,.98)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;border-bottom:1px solid var(--line);overflow:hidden;}
.article-hero::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 12% 20%,rgba(47,217,196,.1),transparent 26%),radial-gradient(circle at 88% 8%,rgba(108,107,255,.12),transparent 24%);pointer-events:none;}
.article-hero .container{position:relative;z-index:1;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-dim);margin-bottom:28px;line-height:1.7;}
.breadcrumb a{color:var(--text-dim);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:rgba(255,255,255,.22);}
.breadcrumb .current{color:var(--text-dim);overflow-wrap:anywhere;}
.article-head-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:48px;align-items:end;}
.tag{display:inline-flex;align-items:center;gap:7px;min-height:28px;padding:2px 11px;border-radius:999px;border:1px solid rgba(47,217,196,.28);background:rgba(47,217,196,.09);color:var(--brand);font-size:12px;letter-spacing:.06em;line-height:1.4;}
.tag::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent);}
.article-title{font-size:clamp(34px,4.6vw,56px);line-height:1.16;letter-spacing:-.03em;margin-top:18px;overflow-wrap:anywhere;}
.article-sub{max-width:720px;margin-top:18px;font-size:16px;color:var(--text-body);line-height:1.85;}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 20px;margin-top:26px;font-size:13px;color:var(--text-dim);}
.meta-item{display:inline-flex;align-items:center;gap:8px;}
.meta-item .mono{font-family:var(--font-mono);color:var(--text-body);}
.meta-item svg{width:15px;height:15px;color:var(--brand);flex:none;}
.article-side{position:relative;padding:24px;border-radius:16px;border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.028));box-shadow:var(--shadow-card);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);}
.article-side::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(47,217,196,.55),transparent);}
.article-side .side-label{display:block;font-size:11px;letter-spacing:.16em;color:var(--brand);font-family:var(--font-mono);}
.article-side h2{font-size:18px;margin-top:8px;line-height:1.35;}
.info-list{margin:18px 0 0;border-top:1px solid var(--line);}
.info-row{display:flex;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px solid var(--line);font-size:13px;}
.info-row dt{color:var(--text-dim);font-weight:400;}
.info-row dd{margin:0;color:var(--text-body);text-align:right;overflow-wrap:anywhere;}
.side-note{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--text-dim);line-height:1.75;}
.side-cta{display:inline-flex;align-items:center;gap:6px;margin-top:14px;color:var(--brand);font-size:13px;font-weight:600;min-height:44px;}
.side-cta:hover{gap:9px;color:#7FF7E8;}
.page-main{padding:0 0 96px;}
.article-reading{padding:72px 0 0;}
.article-shell{max-width:760px;margin:0 auto;}
.reading-topline{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:24px;padding-bottom:14px;border-bottom:1px solid var(--line);}
.reading-topline .caption{font-size:12px;letter-spacing:.16em;color:var(--text-dim);font-family:var(--font-mono);white-space:nowrap;}
.reading-topline .rule{flex:1;height:1px;background:linear-gradient(90deg,var(--line),transparent);}
.article-content{color:var(--text-body);font-size:16px;line-height:1.9;overflow-wrap:break-word;}
.article-content > * + *{margin-top:18px;}
.article-content p{margin:0 0 18px;}
.article-content > p:first-of-type{font-size:19px;line-height:1.85;color:var(--text-head);}
.article-content h2{font-size:clamp(25px,3vw,32px);line-height:1.35;margin:48px 0 16px;padding-top:10px;letter-spacing:-.02em;}
.article-content h3{font-size:22px;line-height:1.45;margin:36px 0 12px;}
.article-content h4{font-size:18px;margin:28px 0 10px;}
.article-content ul,.article-content ol{padding-left:24px;margin:0 0 20px;}
.article-content li{margin:8px 0;padding-left:4px;}
.article-content li::marker{color:var(--brand);}
.article-content a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(47,217,196,.35);}
.article-content a:hover{color:#7FF7E8;text-decoration-color:currentColor;}
.article-content blockquote{margin:28px 0;padding:20px 22px;border-left:3px solid var(--brand);border-radius:0 14px 14px 0;background:rgba(47,217,196,.07);color:var(--text-head);font-size:17px;line-height:1.8;}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content figure{margin:30px 0;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:rgba(255,255,255,.03);}
.article-content figure img{width:100%;height:auto;}
.article-content figcaption{padding:10px 14px;font-size:12.5px;color:var(--text-dim);border-top:1px solid var(--line);}
.article-content table{display:block;width:100%;max-width:100%;overflow-x:auto;border-collapse:collapse;margin:26px 0;font-size:14px;line-height:1.7;border:1px solid var(--line);border-radius:12px;}
.article-content th,.article-content td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line);min-width:120px;}
.article-content th{background:rgba(47,217,196,.08);color:var(--text-head);font-weight:600;}
.article-content tr:nth-child(even) td{background:rgba(255,255,255,.018);}
.article-content tr:last-child td{border-bottom:0;}
.article-content code{padding:2px 6px;border-radius:5px;background:rgba(108,107,255,.13);color:#DCDCFF;font-family:var(--font-mono);font-size:.9em;}
.article-content pre{padding:18px 20px;border:1px solid var(--line);border-radius:12px;background:#03050B;overflow-x:auto;font-family:var(--font-mono);font-size:13.5px;line-height:1.7;color:#CFD8FF;}
.article-content pre code{padding:0;background:transparent;color:inherit;font-size:inherit;}
.article-content hr{margin:36px 0;border:0;border-top:1px solid var(--line);}
.article-content img{max-width:100%;height:auto;border-radius:10px;}
.article-content iframe{max-width:100%;border-radius:10px;}
.article-content strong{color:var(--text-head);font-weight:600;}
.article-empty{padding:42px 28px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.035);text-align:center;box-shadow:var(--shadow-card);}
.article-empty h2{font-size:26px;}
.article-empty p{margin:12px auto 22px;max-width:420px;color:var(--text-dim);font-size:14px;}
.article-end{max-width:760px;margin:48px auto 0;padding-top:24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:flex-start;gap:24px;flex-wrap:wrap;}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;max-width:430px;}
.tag-soft{display:inline-flex;align-items:center;min-height:30px;padding:3px 11px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.035);color:var(--text-body);font-size:12px;line-height:1.5;}
.tag-soft:hover{border-color:rgba(47,217,196,.36);background:rgba(47,217,196,.07);color:var(--brand);}
.article-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.back-link{display:inline-flex;align-items:center;gap:7px;color:var(--brand);font-size:13px;font-weight:600;min-height:44px;transition:gap .22s ease,color .22s ease;}
.back-link:hover{gap:9px;color:#7FF7E8;}
.share-group{display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.share-btn{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:rgba(255,255,255,.035);color:var(--text-body);cursor:pointer;transition:border-color .22s ease,background .22s ease,color .22s ease,transform .22s ease;}
.share-btn:hover{border-color:rgba(47,217,196,.5);color:var(--brand);background:rgba(47,217,196,.08);transform:translateY(-1px);}
.share-btn svg{width:18px;height:18px;}
.copy-feedback{font-size:12px;color:var(--brand);opacity:0;transform:translateY(2px);transition:opacity .2s ease,transform .2s ease;}
.copy-feedback.show{opacity:1;transform:none;}
.related-section{padding:84px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:30px;}
.section-head .eyebrow{display:block;font-size:11px;letter-spacing:.18em;color:var(--brand);font-family:var(--font-mono);}
.section-head h2{font-size:clamp(27px,3vw,36px);margin-top:8px;}
.section-head p{max-width:520px;font-size:14px;color:var(--text-dim);margin-top:8px;}
.section-link{display:inline-flex;align-items:center;gap:6px;min-height:44px;font-size:13px;font-weight:600;color:var(--brand);white-space:nowrap;}
.section-link:hover{gap:9px;color:#7FF7E8;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.related-card{display:flex;flex-direction:column;border-radius:16px;overflow:hidden;border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.065),rgba(255,255,255,.025));box-shadow:var(--shadow-card);transition:transform .25s ease,border-color .25s ease,background .25s ease;color:var(--text-body);}
.related-card:hover{transform:translateY(-4px);border-color:rgba(47,217,196,.3);color:var(--text-body);}
.related-card .thumb{aspect-ratio:16/9;overflow:hidden;background:#0B1020;}
.related-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease,filter .5s ease;filter:saturate(.9);}
.related-card:hover .thumb img{transform:scale(1.04);filter:saturate(1.06);}
.related-card .card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.related-card .card-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:11.5px;color:var(--text-dim);}
.related-card .card-cat{color:var(--brand);letter-spacing:.06em;}
.related-card h3{font-size:18px;line-height:1.5;color:var(--text-head);}
.related-card p{font-size:13.5px;line-height:1.75;color:var(--text-dim);}
.related-card .read{display:inline-flex;align-items:center;gap:6px;margin-top:auto;padding-top:8px;color:var(--brand);font-size:12.5px;font-weight:600;}
.cta-band{position:relative;overflow:hidden;margin-top:72px;display:flex;align-items:center;justify-content:space-between;gap:28px;padding:34px 38px;border-radius:18px;border:1px solid rgba(47,217,196,.2);background:linear-gradient(120deg,rgba(47,217,196,.11),rgba(108,107,255,.09) 55%,rgba(255,255,255,.04));box-shadow:var(--shadow-card);}
.cta-band::after{content:"";position:absolute;right:-80px;top:-100px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(47,217,196,.22),transparent 65%);pointer-events:none;}
.cta-band h2{font-size:clamp(23px,2.7vw,30px);line-height:1.35;}
.cta-band p{margin-top:8px;font-size:14px;color:var(--text-body);}
.cta-band .btn{flex-shrink:0;position:relative;z-index:1;}
.site-footer{background:#03050B;border-top:1px solid var(--line);padding-top:62px;color:var(--text-dim);}
.footer-grid{display:grid;grid-template-columns:1.45fr .75fr .95fr 1fr;gap:36px;align-items:start;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:13.5px;line-height:1.85;color:var(--text-dim);max-width:360px;}
.footer-col h4{font-size:13px;letter-spacing:.12em;color:var(--text-head);margin-bottom:16px;font-family:var(--font-mono);font-weight:600;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:10px;font-size:13.5px;line-height:1.7;}
.footer-col a{color:var(--text-dim);}
.footer-col a:hover{color:var(--brand);}
.footer-sub-form{display:flex;gap:8px;align-items:center;}
.footer-sub-form input{flex:1;min-width:0;height:44px;padding:0 12px;border-radius:9px;border:1px solid var(--line);background:rgba(255,255,255,.035);color:var(--text-head);font-size:13px;transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;}
.footer-sub-form input::placeholder{color:var(--text-dim);}
.footer-sub-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,217,196,.12);background:rgba(47,217,196,.05);}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-top:48px;padding:20px 0;border-top:1px solid var(--line);font-size:12px;color:var(--text-dim);}
.footer-bottom .links{display:flex;gap:16px;flex-wrap:wrap;}
.footer-bottom a{color:var(--text-dim);}
.footer-bottom a:hover{color:var(--brand);}
@media (max-width:1100px){
  .article-head-grid{grid-template-columns:1fr;gap:28px;align-items:start;}
  .article-side{max-width:560px;}
  .footer-grid{grid-template-columns:1.2fr .8fr;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:1024px){
  :root{--header-h:72px;}
  .cmd-search{display:none;}
  .nav-menu{position:fixed;left:0;right:0;top:var(--header-h);bottom:0;z-index:55;display:flex;flex-direction:column;align-items:flex-start;gap:0;padding:24px;background:rgba(5,7,15,.98);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-top:1px solid var(--line);transform:translateY(-12px);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .25s ease,transform .25s ease,visibility .25s ease;overflow-y:auto;}
  .nav-menu.is-open{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto;}
  .nav-menu li{width:100%;border-bottom:1px solid var(--line);}
  .nav-menu a{width:100%;min-height:56px;padding:0 4px;font-size:18px;border-radius:0;}
  .nav-toggle{display:inline-flex;}
  .article-hero{padding-top:30px;}
}
@media (max-width:768px){
  .article-hero{padding:28px 0 52px;}
  .breadcrumb{margin-bottom:22px;}
  .article-meta{gap:8px 14px;}
  .article-reading{padding-top:52px;}
  .related-section{padding-top:64px;}
  .section-head{flex-direction:column;align-items:flex-start;}
  .related-grid{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:640px){
  :root{--header-h:64px;}
  .container{padding:0 18px;}
  .brand-name{font-size:15px;}
  .brand-mark{width:32px;height:32px;}
  .brand-sub{font-size:8px;letter-spacing:.16em;}
  .nav-right{gap:8px;}
  .icon-btn{display:none;}
  .article-title{font-size:clamp(30px,9vw,42px);}
  .article-sub{font-size:15px;}
  .article-end{flex-direction:column;}
  .footer-grid{grid-template-columns:1fr;}
  .related-card .card-body{padding:18px;}
  .article-content > p:first-of-type{font-size:17px;}
  .article-content h2{margin-top:38px;}
  .article-content h3{margin-top:30px;}
  .reading-topline .caption:last-child{display:none;}
}
@media (max-width:520px){
  .nav-right .btn-sm{display:none;}
  .article-hero{padding-bottom:44px;}
  .article-side{padding:20px;}
  .info-row{font-size:12.5px;}
  .cta-band{padding:24px 20px;}
  .footer-sub-form{flex-direction:column;align-items:stretch;}
  .footer-sub-form .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{scroll-behavior:auto !important;transition-duration:.01ms !important;animation-duration:.01ms !important;animation-iteration-count:1 !important;}
}

/* roulang page: category2 */
:root{
  --ink-900:#05070F;
  --ink-800:#0A0F1F;
  --ink-700:#101830;
  --brand:#2FD9C4;
  --brand-soft:rgba(47,217,196,.14);
  --accent:#F2B84B;
  --violet:#6C6BFF;
  --text:#EAF0FF;
  --body:#A8B3CC;
  --dim:#6E7A96;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --glass:rgba(255,255,255,.04);
  --radius:16px;
  --radius-sm:12px;
  --radius-xs:10px;
  --shadow:0 20px 60px -24px rgba(0,0,0,.8);
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --mono:"JetBrains Mono","SFMono-Regular",ui-monospace,Menlo,monospace;
  --header-h:72px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:90px}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--body);
  background:var(--ink-900);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:600;line-height:1.3;letter-spacing:-.01em}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease}
a:hover{color:#8df3e7}
img{max-width:100%;height:auto;display:block}
ul,ol{margin:0;padding:0}
li{list-style:none}
button{font:inherit;color:inherit}
::selection{background:rgba(47,217,196,.3);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ===== 通用组件 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 22px;
  border-radius:var(--radius-xs);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  color:var(--text);
  background:transparent;
  cursor:pointer;
  text-align:center;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#35e3ce,#22b6a5);
  color:#04120f;
  box-shadow:0 12px 34px -14px rgba(47,217,196,.75);
}
.btn-primary:hover{
  color:#04120f;
  transform:translateY(-2px);
  box-shadow:0 8px 30px -6px rgba(47,217,196,.55);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 16px -8px rgba(47,217,196,.6)}
.btn-ghost{
  border-color:var(--line-strong);
  background:var(--glass);
  color:var(--text);
}
.btn-ghost:hover{
  border-color:rgba(47,217,196,.6);
  background:rgba(47,217,196,.08);
  color:#fff;
}
.btn-sm{min-height:44px;padding:0 18px;font-size:14px}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 12px;
  border-radius:999px;
  border:1px solid rgba(47,217,196,.3);
  background:rgba(47,217,196,.07);
  color:#a9f4ea;
  font-size:12px;
  letter-spacing:.1em;
  line-height:1.6;
}
.eyebrow::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 10px var(--brand);
}

.tag{
  display:inline-flex;
  align-items:center;
  min-height:26px;
  padding:0 10px;
  border-radius:999px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  color:var(--body);
  font-size:12px;
  letter-spacing:.04em;
  line-height:1.5;
}
.tag-gold{
  border-color:rgba(242,184,75,.4);
  background:rgba(242,184,75,.1);
  color:#f7d491;
}
.tag-brand{
  border-color:rgba(47,217,196,.4);
  background:rgba(47,217,196,.1);
  color:#a9f4ea;
}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  min-height:44px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
}
.link-arrow span{transition:transform .2s ease;display:inline-block}
.link-arrow:hover span{transform:translateX(4px)}

.section{padding:88px 0}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:28px;
  margin-bottom:36px;
}
.section-head h2{font-size:clamp(24px,2.6vw,32px)}
.section-head p{max-width:520px;color:var(--dim);font-size:14.5px;margin:8px 0 0}
.section-label{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.16em;
  color:var(--brand);
  margin-bottom:10px;
  display:block;
}

/* ===== 导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(5,7,15,.74);
  border-bottom:1px solid transparent;
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-stuck{
  background:rgba(5,7,15,.94);
  border-bottom-color:var(--line);
  box-shadow:0 16px 40px -30px #000;
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:22px;
  height:var(--header-h);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text);
  flex-shrink:0;
}
.brand-mark{
  width:32px;height:32px;
  display:grid;place-items:center;
  border-radius:9px;
  border:1px solid rgba(47,217,196,.28);
  background:rgba(47,217,196,.09);
  box-shadow:0 0 20px -8px rgba(47,217,196,.7);
}
.brand-mark svg{width:18px;height:18px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:15px;font-weight:700;color:var(--text);letter-spacing:.01em}
.brand-sub{font-size:9px;letter-spacing:.18em;color:var(--dim);margin-top:2px}
.nav-menu{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:6px;
}
.nav-menu a{
  display:inline-flex;
  align-items:center;
  gap:7px;
  min-height:44px;
  padding:0 12px;
  border-radius:8px;
  color:var(--body);
  font-size:14.5px;
  font-weight:500;
}
.nav-menu a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-menu a.active{color:#fff}
.nav-menu a.active::before{
  content:"";
  width:5px;height:5px;border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 10px var(--brand);
}
.nav-right{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:10px;
}
.cmd-search{
  display:flex;
  align-items:center;
  gap:8px;
  width:220px;
  height:44px;
  padding:0 12px;
  border-radius:var(--radius-xs);
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--dim);
  font-size:13.5px;
  cursor:pointer;
  transition:border-color .2s ease,background .2s ease,color .2s ease;
}
.cmd-search svg{width:16px;height:16px;flex-shrink:0}
.cmd-search .key{
  margin-left:auto;
  font-family:var(--mono);
  font-size:11px;
  padding:2px 6px;
  border-radius:5px;
  border:1px solid var(--line-strong);
  color:var(--body);
  background:rgba(255,255,255,.04);
}
.cmd-search:hover{border-color:rgba(47,217,196,.45);color:var(--body)}
.cmd-search:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.icon-btn{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:var(--radius-xs);
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--body);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.icon-btn svg{width:18px;height:18px}
.icon-btn:hover{border-color:rgba(47,217,196,.5);color:var(--brand);background:rgba(47,217,196,.07)}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  border-radius:var(--radius-xs);
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text);
  cursor:pointer;
}
.nav-toggle svg{width:20px;height:20px}

/* ===== 分类页头 ===== */
.page-hero{
  position:relative;
  padding:76px 0 60px;
  background-color:var(--ink-900);
  background-image:
    radial-gradient(circle at 18% 24%, rgba(255,255,255,.55) 0 1px, transparent 1.7px),
    radial-gradient(circle at 72% 18%, rgba(255,255,255,.4) 0 1px, transparent 1.7px),
    radial-gradient(circle at 86% 70%, rgba(242,184,75,.5) 0 1px, transparent 1.7px),
    radial-gradient(circle at 38% 82%, rgba(255,255,255,.35) 0 1px, transparent 1.7px),
    radial-gradient(ellipse at 80% 22%, rgba(108,107,255,.22), transparent 58%),
    linear-gradient(118deg, rgba(5,7,15,.96) 18%, rgba(5,7,15,.82) 58%, rgba(10,15,31,.92)),
    url('/assets/images/backpic/back-2.png');
  background-size:220px 220px,260px 260px,300px 300px,240px 240px,cover,cover,cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.5;
  pointer-events:none;
  mask-image:linear-gradient(120deg,rgba(0,0,0,.8),transparent 70%);
  -webkit-mask-image:linear-gradient(120deg,rgba(0,0,0,.8),transparent 70%);
}
.page-hero .container{position:relative;z-index:1}
.page-hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,.8fr);
  gap:56px;
  align-items:end;
}
.page-hero h1{
  font-size:clamp(30px,4.2vw,46px);
  line-height:1.22;
  margin-top:16px;
  max-width:760px;
}
.page-hero-note{
  border-left:2px solid rgba(47,217,196,.6);
  padding-left:18px;
  font-size:15px;
  line-height:1.9;
  color:var(--body);
  margin:0 0 4px;
}
.page-hero-note strong{color:var(--text);font-weight:600}

/* ===== 筛选条 ===== */
.filter-bar{
  background:var(--ink-800);
  border-bottom:1px solid var(--line);
  padding:22px 0;
}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  min-height:42px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--body);
  font-size:14px;
  transition:border-color .2s ease,background .2s ease,color .2s ease,transform .2s ease;
}
.chip:hover{border-color:rgba(47,217,196,.45);color:#fff;transform:translateY(-1px)}
.chip.is-active{
  background:rgba(47,217,196,.14);
  border-color:rgba(47,217,196,.6);
  color:#dffcf7;
  font-weight:600;
}
.chip .num{
  font-family:var(--mono);
  font-size:11px;
  color:var(--dim);
}
.chip.is-active .num{color:#8df3e7}

/* ===== 方案编号列表 ===== */
.plan-list{border-top:1px solid var(--line)}
.plan-row{
  display:grid;
  grid-template-columns:96px minmax(0,1fr) 216px;
  gap:34px;
  align-items:start;
  padding:34px 18px;
  border-bottom:1px solid var(--line);
  transition:background .25s ease,border-color .25s ease;
}
.plan-row:hover{background:rgba(255,255,255,.035);border-bottom-color:rgba(47,217,196,.28)}
.plan-no{
  font-family:var(--mono);
  font-size:46px;
  line-height:1;
  font-weight:600;
  color:rgba(47,217,196,.5);
  letter-spacing:-.04em;
  transition:color .25s ease,text-shadow .25s ease;
}
.plan-row:hover .plan-no{color:var(--brand);text-shadow:0 0 24px rgba(47,217,196,.45)}
.plan-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.plan-body h3{font-size:22px;margin-bottom:10px}
.plan-body > p{font-size:15px;max-width:640px;margin-bottom:14px}
.plan-points{display:grid;gap:6px;margin-bottom:10px}
.plan-points li{
  position:relative;
  padding-left:17px;
  font-size:14px;
  color:var(--dim);
}
.plan-points li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:6px;height:6px;
  border-radius:2px;
  background:rgba(47,217,196,.55);
}
.plan-thumb{margin:0}
.ratio-4x3{
  position:relative;
  padding-top:75%;
  overflow:hidden;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:var(--ink-700);
}
.ratio-16x9{
  position:relative;
  padding-top:56.25%;
  overflow:hidden;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:var(--ink-700);
}
.ratio-4x3 img,.ratio-16x9 img{
  position:absolute;
  inset:0;
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.plan-row:hover .ratio-4x3 img{transform:scale(1.04)}

/* ===== 推进步骤 ===== */
.steps-wrap{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.step{
  position:relative;
  padding:26px 24px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.015));
  box-shadow:var(--shadow);
}
.step::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:1px;
  background:linear-gradient(90deg,rgba(47,217,196,.45),rgba(108,107,255,.25),transparent);
  border-radius:var(--radius) var(--radius) 0 0;
}
.step-no{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:30px;height:30px;
  border-radius:9px;
  border:1px solid rgba(47,217,196,.35);
  background:rgba(47,217,196,.1);
  color:#a9f4ea;
  font-family:var(--mono);
  font-size:13px;
  margin-bottom:14px;
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;color:var(--dim);margin:0}

/* ===== 对照表 ===== */
.compare-head{max-width:620px;margin-bottom:28px}
.table-scroll{
  overflow-x:auto;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--ink-800);
  box-shadow:var(--shadow);
}
.compare-table{
  width:100%;
  min-width:640px;
  border-collapse:collapse;
  font-size:14.5px;
  margin:0;
}
.compare-table caption{
  caption-side:top;
  text-align:left;
  padding:18px 22px;
  color:var(--dim);
  font-size:13px;
  border-bottom:1px solid var(--line);
}
.compare-table th,.compare-table td{
  padding:15px 22px;
  text-align:left;
  border-bottom:1px solid var(--line);
  vertical-align:top;
}
.compare-table thead th{
  background:rgba(255,255,255,.055);
  color:var(--text);
  font-size:12.5px;
  letter-spacing:.1em;
  font-weight:600;
  white-space:nowrap;
}
.compare-table tbody tr:nth-child(even){background:rgba(255,255,255,.018)}
.compare-table tbody tr:hover{background:rgba(47,217,196,.05)}
.compare-table tbody td:first-child{color:var(--text);font-weight:500;white-space:nowrap}
.compare-table tbody tr:last-child td{border-bottom:0}

/* ===== FAQ ===== */
.faq-list{border-top:1px solid var(--line);max-width:920px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 4px;
  list-style:none;
  cursor:pointer;
  font-size:17px;
  font-weight:600;
  color:var(--text);
  min-height:44px;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-icon{
  width:18px;height:18px;
  flex-shrink:0;
  color:var(--brand);
  transition:transform .25s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-answer{
  padding:0 4px 24px;
  font-size:15px;
  line-height:1.85;
  color:var(--body);
  max-width:820px;
}
.faq-answer p{margin:0}

/* ===== CTA ===== */
.cta-band{padding:0 0 88px}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  padding:40px 44px;
  border-radius:20px;
  border:1px solid rgba(47,217,196,.22);
  background:
    radial-gradient(ellipse at 88% 0%, rgba(108,107,255,.2), transparent 62%),
    linear-gradient(120deg, rgba(47,217,196,.13), rgba(255,255,255,.035) 55%, rgba(255,255,255,.02));
  box-shadow:var(--shadow);
  position:relative;
  overflow:hidden;
}
.cta-inner::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,rgba(47,217,196,.7),rgba(108,107,255,.35),transparent);
}
.cta-copy h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:8px}
.cta-copy p{font-size:14.5px;color:var(--body);max-width:560px;margin:0}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex-shrink:0}

/* ===== 页脚 ===== */
.site-footer{
  background:#04060c;
  border-top:1px solid var(--line);
  padding:64px 0 24px;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr .8fr 1.1fr 1.1fr;
  gap:40px;
}
.footer-brand .brand{margin-bottom:0}
.footer-brand p{
  color:var(--dim);
  font-size:13.5px;
  line-height:1.85;
  margin:16px 0 0;
  max-width:310px;
}
.footer-col h4{
  font-size:13px;
  letter-spacing:.1em;
  color:var(--text);
  margin-bottom:16px;
}
.footer-col ul{display:grid;gap:10px}
.footer-col a,.footer-col span{
  color:var(--dim);
  font-size:13.5px;
  line-height:1.7;
}
.footer-col a:hover{color:var(--brand)}
.footer-sub-form{display:flex;gap:8px;margin-top:4px}
.footer-sub-form input{
  flex:1;
  min-width:0;
  height:44px;
  padding:0 12px;
  border-radius:9px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text);
  font-size:13.5px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.footer-sub-form input::placeholder{color:var(--dim)}
.footer-sub-form input:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(47,217,196,.16);
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  margin-top:48px;
  padding-top:20px;
  border-top:1px solid var(--line);
  color:var(--dim);
  font-size:12.5px;
}
.footer-bottom .links{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom a{color:var(--dim)}
.footer-bottom a:hover{color:var(--brand)}

/* ===== 响应式 ===== */
@media (max-width:1200px){
  .cmd-search{width:190px}
  .nav-menu a{padding:0 10px;font-size:14px}
}

@media (max-width:1024px){
  :root{--header-h:66px}
  .section{padding:72px 0}
  .nav-wrap{gap:14px}
  .nav-menu{
    position:fixed;
    top:var(--header-h);
    left:0;right:0;
    bottom:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin:0;
    padding:20px 24px 40px;
    background:rgba(5,7,15,.98);
    border-top:1px solid var(--line);
    overflow-y:auto;
    z-index:90;
  }
  .nav-menu.is-open{display:flex}
  .nav-menu li{border-bottom:1px solid var(--line)}
  .nav-menu a{
    min-height:60px;
    padding:0 4px;
    font-size:18px;
    border-radius:0;
  }
  .nav-menu a.active::before{width:6px;height:6px}
  .cmd-search{display:none}
  .nav-toggle{display:inline-flex}
  .page-hero{padding:58px 0 48px}
  .page-hero-grid{grid-template-columns:1fr;gap:28px;align-items:start}
  .page-hero-note{max-width:640px}
  .plan-row{grid-template-columns:72px minmax(0,1fr);gap:24px}
  .plan-thumb{grid-column:2;max-width:320px;margin-top:4px}
  .plan-no{font-size:38px}
  .steps{grid-template-columns:1fr;gap:16px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:34px 30px}
  .cta-actions{width:100%}
}

@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:60px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px}
  .icon-btn{display:none}
  .brand-name{font-size:14px}
  .brand-sub{font-size:8px;letter-spacing:.14em}
  .page-hero h1{font-size:clamp(26px,6vw,34px)}
  .plan-row{grid-template-columns:1fr;gap:14px;padding:28px 6px}
  .plan-no{font-size:32px}
  .plan-thumb{grid-column:1;max-width:100%}
  .plan-body h3{font-size:20px}
  .compare-table th,.compare-table td{padding:13px 16px}
  .faq-item summary{font-size:16px;padding:20px 2px}
  .cta-band{padding-bottom:64px}
  .cta-actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}
}

@media (max-width:520px){
  .container{padding:0 16px}
  .page-hero{padding:44px 0 38px}
  .page-hero-note{padding-left:14px;font-size:14px}
  .chip{min-height:44px;font-size:13px;padding:0 13px}
  .plan-row{padding:24px 2px}
  .cta-inner{padding:28px 22px;border-radius:16px}
  .footer-sub-form{flex-direction:column}
  .footer-sub-form .btn{width:100%}
  .faq-answer{font-size:14.5px}
}

/* roulang page: category3 */
:root{
  --ink-900:#05070F;
  --ink-800:#0A0F1F;
  --ink-700:#101830;
  --brand:#2FD9C4;
  --brand-soft:rgba(47,217,196,.14);
  --accent:#F2B84B;
  --violet:#6C6BFF;
  --text-strong:#EAF0FF;
  --text:#A8B3CC;
  --text-dim:#6E7A96;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.04);
  --glass-2:rgba(255,255,255,.06);
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow:0 20px 60px -24px rgba(0,0,0,.8);
  --container:1200px;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular","Roboto Mono",ui-monospace,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:#7ef0e2;}
p{margin:0 0 16px;}
h1,h2,h3,h4,h5,h6{
  margin:0 0 16px;
  color:var(--text-strong);
  font-family:var(--font-sans);
  font-weight:600;
  line-height:1.3;
  letter-spacing:-.01em;
}
h1{font-size:clamp(30px,4vw,46px);font-weight:700;line-height:1.2;}
h2{font-size:clamp(24px,2.6vw,32px);}
h3{font-size:clamp(19px,2vw,22px);}
ul,ol{margin:0 0 16px;padding-left:20px;}
li{margin-bottom:8px;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;}
::selection{background:rgba(47,217,196,.28);color:#fff;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 按钮与标签 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 22px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#2FD9C4 0%,#37c9e0 100%);
  color:#04201C;
  box-shadow:0 10px 26px -14px rgba(47,217,196,.9);
}
.btn-primary:hover{
  color:#04201C;
  transform:translateY(-2px);
  box-shadow:0 8px 30px -6px rgba(47,217,196,.55);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 14px -8px rgba(47,217,196,.6);}
.btn-ghost{
  background:var(--glass);
  border-color:var(--line-strong);
  color:var(--text-strong);
}
.btn-ghost:hover{
  background:rgba(255,255,255,.09);
  border-color:rgba(47,217,196,.55);
  color:#fff;
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;}

.pill{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:5px 12px;
  border-radius:999px;
  border:1px solid rgba(47,217,196,.32);
  background:var(--brand-soft);
  color:#9df3e8;
  font-size:12.5px;
  letter-spacing:.06em;
  line-height:1.6;
}
.pill.gold{
  border-color:rgba(242,184,75,.34);
  background:rgba(242,184,75,.12);
  color:#f7d193;
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(5,7,15,.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header.is-stuck{
  background:rgba(5,7,15,.94);
  box-shadow:0 18px 40px -32px rgba(0,0,0,.95);
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--text-strong);
}
.brand:hover{color:#fff;}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border-radius:10px;
  background:rgba(47,217,196,.1);
  border:1px solid rgba(47,217,196,.24);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:15.5px;font-weight:700;letter-spacing:.01em;color:var(--text-strong);}
.brand-sub{font-size:10px;letter-spacing:.22em;color:var(--text-dim);font-family:var(--font-mono);}

.nav-menu{
  display:flex;
  align-items:center;
  gap:6px;
  margin:0 auto 0 12px;
  padding:0;
  list-style:none;
}
.nav-menu li{margin:0;}
.nav-menu a{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 13px;
  border-radius:9px;
  color:var(--text);
  font-size:14.5px;
  font-weight:500;
  transition:color .2s ease,background .2s ease;
}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,.05);}
.nav-menu a.active{color:#fff;}
.nav-menu a.active::before{
  content:"";
  position:absolute;
  left:4px;
  top:50%;
  transform:translateY(-50%);
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 10px rgba(47,217,196,.9);
}

.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.cmd-search{
  display:inline-flex;
  align-items:center;
  gap:8px;
  width:220px;
  min-height:40px;
  padding:0 12px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line-strong);
  background:var(--glass);
  color:var(--text-dim);
  font-size:13.5px;
  cursor:pointer;
  transition:border-color .2s ease,background .2s ease,color .2s ease;
}
.cmd-search svg{width:15px;height:15px;flex:0 0 auto;}
.cmd-search span:nth-child(2){flex:1;text-align:left;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.cmd-search .key{
  font-family:var(--font-mono);
  font-size:11px;
  padding:2px 6px;
  border-radius:5px;
  border:1px solid var(--line);
  color:var(--text-dim);
  background:rgba(255,255,255,.03);
}
.cmd-search:hover{border-color:rgba(47,217,196,.5);color:var(--text);}
.cmd-search:focus-visible{border-color:var(--brand);background:rgba(47,217,196,.08);}
.icon-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line-strong);
  background:var(--glass);
  color:var(--text);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.icon-btn svg{width:18px;height:18px;}
.icon-btn:hover{border-color:rgba(47,217,196,.5);color:var(--brand);background:rgba(47,217,196,.08);}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line-strong);
  background:var(--glass);
  color:var(--text-strong);
  cursor:pointer;
}
.nav-toggle svg{width:20px;height:20px;}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:78px 0 68px;
  background:
    radial-gradient(900px 460px at 78% 8%,rgba(108,107,255,.16),transparent 62%),
    radial-gradient(700px 420px at 12% 88%,rgba(47,217,196,.12),transparent 60%),
    var(--ink-900);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    radial-gradient(rgba(255,255,255,.55) 1px,transparent 1px),
    linear-gradient(115deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:120px 120px,90px 90px;
  opacity:.06;
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:56px;
  align-items:center;
}
.hero-title{margin:18px 0 16px;}
.hero-title em{
  font-style:normal;
  background:linear-gradient(100deg,#2FD9C4 10%,#8ee7ff 60%,#F2B84B 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  font-size:16.5px;
  color:var(--text);
  max-width:560px;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px;}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;
  padding-top:22px;
  border-top:1px solid var(--line);
}
.stat-num{
  font-family:var(--font-mono);
  font-size:28px;
  font-weight:700;
  color:var(--text-strong);
  line-height:1.2;
  display:block;
}
.stat-num small{font-size:14px;color:var(--brand);margin-left:2px;font-weight:500;}
.stat-label{font-size:12.5px;color:var(--text-dim);letter-spacing:.04em;}

.hero-panel{
  position:relative;
  border-radius:20px;
  border:1px solid var(--line-strong);
  background:var(--glass);
  box-shadow:var(--shadow);
  overflow:hidden;
  transform:rotate(-1.1deg);
  min-height:340px;
}
.hero-panel::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,.05),rgba(5,7,15,.86));
  pointer-events:none;
}
.panel-img{
  width:100%;
  height:340px;
  object-fit:cover;
  opacity:.62;
  filter:saturate(.9);
}
.panel-card{
  position:absolute;
  z-index:2;
  padding:14px 16px;
  border-radius:var(--radius-md);
  border:1px solid var(--line-strong);
  background:rgba(16,24,48,.82);
  backdrop-filter:blur(14px);
  box-shadow:0 18px 40px -26px rgba(0,0,0,.9);
}
.panel-card.p1{left:18px;bottom:20px;width:calc(100% - 110px);max-width:270px;}
.panel-card.p2{right:16px;top:18px;width:170px;}
.panel-card h4{
  font-size:12px;
  letter-spacing:.1em;
  color:var(--text-dim);
  margin:0 0 6px;
  font-weight:500;
}
.panel-card .val{
  font-family:var(--font-mono);
  font-size:22px;
  color:var(--text-strong);
  line-height:1.2;
}
.panel-card .val span{font-size:13px;color:var(--brand);}
.panel-bar{
  margin-top:10px;
  height:6px;
  border-radius:999px;
  background:rgba(255,255,255,.09);
  overflow:hidden;
}
.panel-bar i{
  display:block;
  height:100%;
  width:68%;
  border-radius:999px;
  background:linear-gradient(90deg,#2FD9C4,#6C6BFF);
}

/* ---------- 主张条 ---------- */
.claim-bar{
  background:var(--ink-800);
  border-bottom:1px solid var(--line);
  padding:18px 0;
}
.claim-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px 26px;
  font-size:14.5px;
  color:var(--text);
}
.claim-inner span{display:inline-flex;align-items:center;gap:10px;}
.claim-inner span + span::before{
  content:"";
  width:1px;
  height:14px;
  background:var(--line-strong);
  display:inline-block;
}
.claim-inner b{color:var(--text-strong);font-weight:600;}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section.tight{padding:64px 0;}
.section.alt{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  margin-bottom:38px;
}
.section-head .lead{max-width:640px;}
.section-title{margin:12px 0 10px;}
.section-desc{color:var(--text);font-size:15.5px;margin:0;}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:14.5px;
  font-weight:600;
  color:var(--brand);
  min-height:44px;
}
.link-more svg{width:15px;height:15px;transition:transform .2s ease;}
.link-more:hover svg{transform:translateX(4px);}

/* ---------- 杂志双栏 ---------- */
.magazine{
  display:grid;
  grid-template-columns:2fr 1fr;
  gap:24px;
  align-items:stretch;
}
.lead-card{
  display:grid;
  grid-template-columns:1fr 1fr;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--glass);
  box-shadow:var(--shadow);
  transition:transform .25s ease,border-color .25s ease;
}
.lead-card:hover{transform:translateY(-4px);border-color:rgba(47,217,196,.32);}
.lead-media{position:relative;min-height:100%;}
.lead-media img{width:100%;height:100%;object-fit:cover;min-height:260px;}
.lead-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,transparent 40%,rgba(10,15,31,.85));
}
.lead-body{padding:30px 28px;display:flex;flex-direction:column;gap:12px;}
.lead-body h3{font-size:23px;margin:0;line-height:1.4;}
.lead-body p{color:var(--text);font-size:15px;margin:0;}
.lead-body .link-more{margin-top:auto;}

.side-stack{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
.mini-article{
  display:flex;
  flex-direction:column;
  border-radius:var(--radius-md);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--glass);
  transition:transform .25s ease,border-color .25s ease,background .25s ease;
}
.mini-article:hover{transform:translateY(-4px);border-color:rgba(47,217,196,.32);background:var(--glass-2);}
.mini-thumb{position:relative;aspect-ratio:4/3;overflow:hidden;}
.mini-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.mini-article:hover .mini-thumb img{transform:scale(1.05);}
.mini-thumb::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,0) 40%,rgba(10,15,31,.9));
}
.mini-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;}
.mini-body h4{font-size:15.5px;line-height:1.55;margin:0;color:var(--text-strong);font-weight:600;}
.mini-body .meta{
  font-family:var(--font-mono);
  font-size:11.5px;
  color:var(--text-dim);
  letter-spacing:.04em;
}

/* ---------- 错位方向块 ---------- */
.insight-list{display:flex;flex-direction:column;gap:20px;}
.insight-row{
  display:grid;
  grid-template-columns:1fr 1.85fr;
  gap:26px;
  align-items:center;
  padding:26px 28px;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--glass);
  transition:border-color .25s ease,background .25s ease,transform .25s ease;
}
.insight-row:hover{border-color:rgba(47,217,196,.3);background:var(--glass-2);transform:translateX(4px);}
.insight-row.flip{grid-template-columns:1.85fr 1fr;}
.insight-row.flip .row-head{order:2;text-align:right;}
.insight-row.flip .row-body{order:1;}
.row-head{display:flex;align-items:center;gap:16px;}
.insight-row.flip .row-head{justify-content:flex-end;}
.row-num{
  font-family:var(--font-mono);
  font-size:34px;
  font-weight:700;
  color:rgba(47,217,196,.5);
  line-height:1;
}
.row-head h3{margin:0;font-size:20px;}
.row-body p{margin:0;font-size:15px;color:var(--text);}

/* ---------- 标签墙 ---------- */
.tagwall{display:flex;flex-wrap:wrap;gap:12px;}
.tag-item{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:44px;
  padding:0 18px;
  border-radius:999px;
  border:1px solid var(--line-strong);
  background:var(--glass);
  color:var(--text);
  font-size:14.5px;
  transition:border-color .2s ease,color .2s ease,background .2s ease,transform .2s ease;
}
.tag-item::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:rgba(47,217,196,.7);
}
.tag-item:hover{
  border-color:rgba(47,217,196,.55);
  background:rgba(47,217,196,.09);
  color:#fff;
  transform:translateY(-2px);
}
.tag-item.gold::before{background:var(--accent);}

/* ---------- 数字墙 ---------- */
.metric-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
}
.metric{
  padding:26px 22px;
  border-radius:var(--radius-md);
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  transition:border-color .25s ease,transform .25s ease;
}
.metric:hover{border-color:rgba(47,217,196,.3);transform:translateY(-3px);}
.metric .num{
  font-family:var(--font-mono);
  font-size:32px;
  font-weight:700;
  color:var(--text-strong);
  line-height:1.15;
  display:block;
  margin-bottom:8px;
}
.metric .num small{font-size:15px;color:var(--accent);margin-left:3px;}
.metric p{margin:0;font-size:14px;color:var(--text-dim);line-height:1.7;}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:64px;
  padding:18px 0;
  cursor:pointer;
  list-style:none;
  color:var(--text-strong);
  font-size:16.5px;
  font-weight:600;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  font-family:var(--font-mono);
  font-size:20px;
  color:var(--brand);
  flex:0 0 auto;
  line-height:1;
  transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item summary:hover{color:#fff;}
.faq-item .faq-answer{
  padding:0 0 22px 0;
  font-size:15px;
  color:var(--text);
  line-height:1.85;
  max-width:820px;
}
.faq-item .faq-answer p:last-child{margin-bottom:0;}

/* ---------- 订阅条 ---------- */
.sub-band{
  position:relative;
  overflow:hidden;
  border-radius:20px;
  border:1px solid var(--line-strong);
  background:
    radial-gradient(600px 300px at 88% 10%,rgba(108,107,255,.22),transparent 66%),
    radial-gradient(500px 260px at 8% 92%,rgba(47,217,196,.18),transparent 62%),
    rgba(16,24,48,.86);
  padding:44px;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:36px;
  align-items:center;
  box-shadow:var(--shadow);
}
.sub-band h2{margin:10px 0 10px;font-size:clamp(22px,2.4vw,28px);}
.sub-band p{color:var(--text);font-size:15px;margin:0;}
.sub-form{display:flex;gap:10px;flex-wrap:wrap;}
.sub-form input{
  flex:1 1 200px;
  min-height:48px;
  padding:0 16px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line-strong);
  background:rgba(5,7,15,.6);
  color:var(--text-strong);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.sub-form input::placeholder{color:var(--text-dim);}
.sub-form input:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(47,217,196,.16);
}
.sub-note{
  margin-top:14px;
  font-size:12.5px;
  color:var(--text-dim);
  display:flex;
  flex-wrap:wrap;
  gap:6px 18px;
}
.sub-note a{color:var(--text);font-size:12.5px;}
.sub-note a:hover{color:var(--brand);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#03050C;
  border-top:1px solid var(--line);
  padding:64px 0 0;
  color:var(--text);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1.2fr 1.3fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:13.5px;color:var(--text-dim);line-height:1.85;margin:0;max-width:300px;}
.footer-col h4{
  font-size:13px;
  letter-spacing:.1em;
  color:var(--text-dim);
  font-weight:600;
  margin-bottom:16px;
  text-transform:none;
}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a,.footer-col span{font-size:13.5px;color:var(--text);}
.footer-col a:hover{color:var(--brand);}
.footer-sub-form{display:flex;gap:8px;}
.footer-sub-form input{
  flex:1;
  min-height:42px;
  padding:0 12px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  color:var(--text-strong);
  font-size:13.5px;
}
.footer-sub-form input::placeholder{color:var(--text-dim);}
.footer-sub-form input:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(47,217,196,.14);
}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:12.5px;
  color:var(--text-dim);
}
.footer-bottom .links{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom .links a{font-size:12.5px;color:var(--text-dim);}
.footer-bottom .links a:hover{color:var(--brand);}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .cmd-search{width:170px;}
  .nav-menu a{padding:0 9px;font-size:14px;}
}

@media (max-width:1023px){
  .nav-wrap{min-height:64px;gap:12px;}
  .cmd-search,.icon-btn{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-menu{
    position:fixed;
    inset:64px 0 0 0;
    margin:0;
    padding:18px 24px 40px;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    background:rgba(5,7,15,.98);
    backdrop-filter:blur(18px);
    border-top:1px solid var(--line);
    overflow-y:auto;
    transform:translateY(-12px);
    opacity:0;
    visibility:hidden;
    transition:opacity .25s ease,transform .25s ease,visibility .25s;
  }
  .nav-menu.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-menu a{font-size:18px;min-height:56px;padding:0 12px;width:100%;}
  .nav-menu a.active::before{left:0;}
  .nav-right{margin-left:auto;}

  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-panel{transform:none;min-height:220px;}
  .panel-img{height:220px;}
  .hero-sub{font-size:15.5px;}
  .section{padding:72px 0;}
  .magazine{grid-template-columns:1fr;}
  .lead-card{grid-template-columns:1fr;}
  .lead-media img{min-height:220px;max-height:260px;}
  .side-stack{grid-template-rows:auto;grid-template-columns:1fr 1fr;}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .insight-row,.insight-row.flip{grid-template-columns:1fr;gap:14px;}
  .insight-row.flip .row-head{order:1;justify-content:flex-start;text-align:left;}
  .insight-row.flip .row-body{order:2;}
  .sub-band{grid-template-columns:1fr;padding:32px 26px;gap:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}

@media (max-width:640px){
  .container{padding:0 18px;}
  .page-hero{padding:52px 0 46px;}
  .hero-stats{grid-template-columns:1fr 1fr;gap:16px;}
  .stat-num{font-size:24px;}
  .hero-actions .btn{width:100%;}
  .claim-inner{flex-direction:column;align-items:flex-start;gap:10px;font-size:13.5px;}
  .claim-inner span + span::before{display:none;}
  .side-stack{grid-template-columns:1fr;}
  .metric-grid{grid-template-columns:1fr;}
  .section{padding:56px 0;}
  .lead-body{padding:22px 20px;}
  .insight-row{padding:20px;}
  .row-num{font-size:26px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .panel-card.p1{width:calc(100% - 32px);left:16px;}
  .panel-card.p2{display:none;}
  .sub-form .btn{width:100%;}
}

/* roulang page: category4 */
:root{
  --ink-900:#05070F;
  --ink-800:#0A0F1F;
  --ink-700:#101830;
  --brand:#2FD9C4;
  --brand-soft:rgba(47,217,196,.12);
  --accent:#F2B84B;
  --violet:#6C6BFF;
  --text-title:#EAF0FF;
  --text-body:#A8B3CC;
  --text-dim:#6E7A96;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.04);
  --radius-lg:18px;
  --radius-md:16px;
  --radius-sm:12px;
  --radius-btn:10px;
  --shadow-card:0 0 0 1px rgba(255,255,255,.06) inset, 0 20px 60px -24px rgba(0,0,0,.8);
  --shadow-glow:0 8px 30px -6px rgba(47,217,196,.55);
  --container:1200px;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-en:"Inter","Space Grotesk",system-ui,sans-serif;
  --font-num:"JetBrains Mono","Inter",ui-monospace,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-body);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:#7CE8DA}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--text-title);font-weight:600;line-height:1.3;letter-spacing:-.01em}
button{font-family:inherit;font-size:inherit;border:0;background:none;color:inherit;cursor:pointer}
input,select,textarea{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
::selection{background:rgba(47,217,196,.28);color:#EAF0FF}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--tight{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:36px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,3vw,32px);font-weight:600}
.section-head p{font-size:15px;color:var(--text-dim);max-width:52em;margin:10px 0 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;color:var(--brand);text-transform:uppercase;font-family:var(--font-en);margin-bottom:14px}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--brand);opacity:.7}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#04120F;box-shadow:0 6px 22px -12px rgba(47,217,196,.8)}
.btn-primary:hover{background:#3FE7D2;color:#04120F;transform:translateY(-2px);box-shadow:var(--shadow-glow)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 14px -8px rgba(47,217,196,.7)}
.btn-ghost{background:var(--glass);color:var(--text-title);border-color:var(--line)}
.btn-ghost:hover{background:rgba(255,255,255,.09);border-color:rgba(47,217,196,.5);color:var(--text-title);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:500;color:var(--brand)}
.link-arrow svg{width:14px;height:14px;transition:transform .22s ease}
.link-arrow:hover svg{transform:translateX(4px)}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 15px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  font-size:13.5px;color:var(--text-body);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.chip:hover{border-color:rgba(47,217,196,.5);color:var(--text-title);background:rgba(47,217,196,.08)}
.chip.is-active{border-color:rgba(47,217,196,.55);background:rgba(47,217,196,.12);color:#8CF0E3}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:200;
  background:rgba(5,7,15,.74);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background .28s ease,box-shadow .28s ease;
}
.site-header.is-scrolled{background:rgba(5,7,15,.95);box-shadow:0 14px 40px -28px #000}
.nav-wrap{display:flex;align-items:center;gap:16px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:inherit}
.brand:hover{color:inherit}
.brand-mark{
  width:30px;height:30px;display:grid;place-items:center;flex:0 0 auto;
  border-radius:9px;background:rgba(47,217,196,.1);border:1px solid rgba(47,217,196,.28);
}
.brand-mark svg{width:18px;height:18px;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.16}
.brand-name{font-size:15px;font-weight:700;color:var(--text-title);letter-spacing:.01em;white-space:nowrap}
.brand-sub{font-size:9.5px;letter-spacing:.18em;color:var(--text-dim);font-family:var(--font-en)}
.nav-menu{display:flex;align-items:center;gap:2px;margin:0 0 0 10px}
.nav-menu a{
  position:relative;display:inline-flex;align-items:center;gap:7px;height:40px;padding:0 14px;
  border-radius:999px;font-size:14.5px;color:var(--text-body);
  transition:color .2s ease,background .2s ease;
}
.nav-menu a:hover{color:var(--text-title);background:rgba(255,255,255,.05)}
.nav-menu a.active{color:var(--text-title);background:rgba(255,255,255,.06)}
.nav-menu a.active::before{
  content:"";width:5px;height:5px;border-radius:50%;background:var(--brand);
  box-shadow:0 0 10px rgba(47,217,196,.9);flex:0 0 auto;
}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto}
.cmd-search{
  display:inline-flex;align-items:center;gap:8px;width:220px;height:40px;padding:0 12px;
  border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--text-dim);font-size:13px;cursor:pointer;
  transition:border-color .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease;
}
.cmd-search svg{width:15px;height:15px;flex:0 0 auto}
.cmd-search:hover{border-color:rgba(47,217,196,.42);color:var(--text-body);background:rgba(255,255,255,.06)}
.cmd-search:focus-visible{border-color:var(--brand);box-shadow:0 0 0 4px rgba(47,217,196,.16)}
.cmd-search .key{
  margin-left:auto;font-family:var(--font-num);font-size:10.5px;line-height:1;
  padding:3px 6px;border-radius:6px;border:1px solid var(--line);color:var(--text-dim);
}
.icon-btn{
  width:40px;height:40px;display:grid;place-items:center;flex:0 0 auto;
  border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.03);
  color:var(--text-dim);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.icon-btn svg{width:18px;height:18px}
.icon-btn:hover{color:var(--brand);border-color:rgba(47,217,196,.45);background:rgba(47,217,196,.08)}
.nav-toggle{
  display:none;width:42px;height:42px;place-items:center;border-radius:10px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text-title);
}
.nav-toggle svg{width:20px;height:20px}

/* ---------- 页头 ---------- */
.page-hero{position:relative;overflow:hidden;padding:76px 0 68px;border-bottom:1px solid var(--line)}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.24;
}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(circle at 12% 18%, rgba(47,217,196,.14), transparent 42%),
    radial-gradient(circle at 84% 0%, rgba(108,107,255,.16), transparent 46%),
    radial-gradient(circle at 60% 120%, rgba(242,184,75,.08), transparent 40%),
    repeating-linear-gradient(115deg, rgba(255,255,255,.028) 0 1px, transparent 1px 22px),
    linear-gradient(180deg, rgba(5,7,15,.62), var(--ink-900) 88%);
}
.hero-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:minmax(0,1.45fr) minmax(0,.85fr);
  gap:56px;align-items:flex-end;
}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;
  border:1px solid rgba(47,217,196,.3);background:rgba(47,217,196,.09);
  font-size:12.5px;letter-spacing:.08em;color:#8CF0E3;
}
.pill i{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(47,217,196,.9)}
.page-hero h1{
  font-size:clamp(30px,4.3vw,46px);line-height:1.22;font-weight:700;
  margin:20px 0 18px;letter-spacing:-.015em;
}
.page-hero h1 em{font-style:normal;color:var(--brand)}
.hero-lede{font-size:16.5px;line-height:1.85;color:var(--text-body);max-width:40em;margin:0}
.hero-side{
  padding:26px;border-radius:var(--radius-md);
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.hero-side h2{font-size:13px;letter-spacing:.12em;color:var(--text-dim);font-weight:500;margin-bottom:16px;text-transform:uppercase}
.hero-side li{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.07);font-size:14.5px;line-height:1.7}
.hero-side li:last-child{border-bottom:0;padding-bottom:0}
.hero-side li:first-child{padding-top:0}
.hero-side .k{flex:0 0 auto;font-family:var(--font-num);font-size:12px;color:var(--brand);padding-top:3px;letter-spacing:.04em}
.hero-side .v strong{display:block;color:var(--text-title);font-weight:500;font-size:14.5px;margin-bottom:2px}
.hero-side .v span{color:var(--text-dim);font-size:13px}

/* ---------- 快捷入口 ---------- */
.quick-bar{
  display:flex;align-items:center;gap:22px;flex-wrap:wrap;
  padding:20px 24px;border-radius:var(--radius-md);
  background:linear-gradient(120deg, rgba(47,217,196,.08), rgba(255,255,255,.03) 58%, rgba(108,107,255,.08));
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  margin-top:-46px;position:relative;z-index:2;
}
.quick-search{display:flex;align-items:center;gap:10px;flex:1 1 340px;min-width:260px}
.quick-search .s-icon{color:var(--text-dim);flex:0 0 auto;display:grid;place-items:center}
.quick-search .s-icon svg{width:18px;height:18px}
.quick-search input{
  flex:1;height:46px;padding:0 16px;border-radius:var(--radius-btn);
  background:rgba(7,10,22,.9);border:1px solid var(--line);
  color:var(--text-title);font-size:14.5px;box-shadow:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.quick-search input::placeholder{color:var(--text-dim)}
.quick-search input:focus{outline:none;border-color:rgba(47,217,196,.65);box-shadow:0 0 0 4px rgba(47,217,196,.14)}
.quick-links{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.quick-label{font-size:12.5px;color:var(--text-dim);letter-spacing:.08em;margin-right:2px}

/* ---------- 支持卡片 ---------- */
.support-grid{row-gap:22px}
.support-grid .cell{display:flex}
.support-card{
  width:100%;padding:28px;border-radius:var(--radius-md);
  background:var(--glass);border:1px solid var(--line);box-shadow:var(--shadow-card);
  display:flex;flex-direction:column;
  transition:transform .25s ease,border-color .25s ease,background .25s ease;
  position:relative;overflow:hidden;
}
.support-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,217,196,.45),transparent);
  opacity:0;transition:opacity .25s ease;
}
.support-card:hover{transform:translateY(-4px);border-color:rgba(47,217,196,.35);background:rgba(255,255,255,.06)}
.support-card:hover::before{opacity:1}
.support-icon{
  width:46px;height:46px;border-radius:var(--radius-sm);display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(47,217,196,.18),rgba(108,107,255,.14));
  border:1px solid rgba(47,217,196,.24);color:var(--brand);margin-bottom:20px;flex:0 0 auto;
}
.support-icon svg{width:21px;height:21px}
.support-card h3{font-size:18px;font-weight:600;margin-bottom:10px}
.support-card p{font-size:14.5px;line-height:1.8;color:var(--text-body);margin-bottom:20px}
.support-card .link-arrow{margin-top:auto}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:minmax(0,.72fr) minmax(0,1.28fr);gap:56px;align-items:start}
.faq-intro h2{font-size:clamp(24px,3vw,32px);margin-bottom:14px}
.faq-intro p{font-size:15px;color:var(--text-body);max-width:32em}
.faq-intro .faq-note{
  margin-top:24px;padding:18px 20px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  font-size:13.5px;line-height:1.8;color:var(--text-dim);
}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:22px;
  padding:22px 4px;text-align:left;color:var(--text-title);
  font-size:16.5px;font-weight:500;line-height:1.55;min-height:44px;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand)}
.faq-q span.q-text{flex:1 1 auto}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;display:grid;place-items:center;
  border-radius:50%;border:1px solid var(--line);color:var(--brand);
  font-size:16px;line-height:1;font-family:var(--font-num);
  transition:transform .3s ease,border-color .3s ease,background .3s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:rgba(47,217,196,.12);border-color:rgba(47,217,196,.45)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .38s ease}
.faq-a p{margin:0;padding:0 4px 24px;font-size:15px;line-height:1.85;color:var(--text-body);max-width:56em}

/* ---------- 联系表单 ---------- */
.contact-grid{row-gap:32px}
.contact-figure{
  margin:26px 0 0;border-radius:var(--radius-md);overflow:hidden;
  border:1px solid var(--line);position:relative;background:var(--ink-700);
  box-shadow:var(--shadow-card);
}
.contact-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.contact-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:26px 18px 14px;
  font-size:12.5px;color:#C9D3E8;
  background:linear-gradient(180deg,transparent,rgba(5,7,15,.9));
}
.contact-meta{margin-top:26px;display:grid;gap:12px}
.contact-meta li{display:flex;gap:10px;font-size:14px;color:var(--text-body)}
.contact-meta .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);margin-top:11px;flex:0 0 auto}
.form-panel{
  padding:30px;border-radius:var(--radius-lg);
  background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.1);
  box-shadow:var(--shadow-card);
}
.form-panel h3{font-size:20px;margin-bottom:6px}
.form-panel .form-sub{font-size:13.5px;color:var(--text-dim);margin-bottom:24px}
.form-grid{row-gap:0}
.field{margin-bottom:18px}
.field label{display:block;font-size:12.5px;letter-spacing:.06em;color:var(--text-dim);margin-bottom:8px}
.field label .req{color:var(--accent);margin-left:3px}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;border-radius:var(--radius-btn);
  background:rgba(7,10,22,.86);border:1px solid var(--line);
  color:var(--text-title);font-size:15px;box-shadow:none;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{height:auto;min-height:136px;padding:12px 14px;line-height:1.75;resize:vertical}
.field select{
  appearance:none;-webkit-appearance:none;-moz-appearance:none;
  padding-right:38px;
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236E7A96' stroke-width='1.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;
}
.field input::placeholder,.field textarea::placeholder{color:#5C6782}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:rgba(47,217,196,.7);
  box-shadow:0 0 0 4px rgba(47,217,196,.14);background:rgba(9,13,26,.95);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{
  border-color:var(--accent);box-shadow:0 0 0 3px rgba(242,184,75,.14);
}
.field-error{display:none;margin-top:7px;font-size:12.5px;color:var(--accent)}
.field.has-error .field-error{display:block}
.form-foot{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-top:6px}
.form-foot .privacy{font-size:12.5px;color:var(--text-dim);line-height:1.7;max-width:26em;margin:0}
.form-status{
  display:none;margin-top:18px;padding:14px 16px;border-radius:var(--radius-sm);
  font-size:14px;line-height:1.7;
  border:1px solid rgba(47,217,196,.4);background:rgba(47,217,196,.1);color:#9BF3E7;
}
.form-status.is-visible{display:block}
.form-status.is-error{border-color:rgba(242,184,75,.45);background:rgba(242,184,75,.1);color:#F6CE86}

/* ---------- CTA 条 ---------- */
.cta-bar{
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
  padding:34px 36px;border-radius:var(--radius-lg);
  background:linear-gradient(115deg, rgba(47,217,196,.13), rgba(108,107,255,.12) 58%, rgba(255,255,255,.03));
  border:1px solid rgba(255,255,255,.11);
  box-shadow:var(--shadow-card);
}
.cta-bar h2{font-size:clamp(20px,2.6vw,26px);margin-bottom:8px}
.cta-bar p{font-size:14.5px;color:var(--text-body);margin:0;max-width:44em}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:#03050C;border-top:1px solid var(--line);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr .8fr 1.15fr 1fr;gap:44px}
.footer-brand p{font-size:13.5px;color:var(--text-dim);line-height:1.9;margin:16px 0 0;max-width:34em}
.footer-col h4{
  font-size:12.5px;letter-spacing:.12em;color:var(--text-title);
  margin-bottom:16px;font-weight:600;text-transform:uppercase;
}
.footer-col ul li{margin-bottom:10px;font-size:13.5px;color:var(--text-dim);line-height:1.7}
.footer-col ul li:last-child{margin-bottom:0}
.footer-col ul a{color:var(--text-dim)}
.footer-col ul a:hover{color:var(--brand)}
.footer-sub-form{display:flex;gap:8px}
.footer-sub-form input{
  flex:1;min-width:0;height:40px;padding:0 12px;border-radius:var(--radius-btn);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--text-title);font-size:13.5px;box-shadow:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.footer-sub-form input::placeholder{color:#5C6782}
.footer-sub-form input:focus{outline:none;border-color:rgba(47,217,196,.65);box-shadow:0 0 0 3px rgba(47,217,196,.14)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px;
  border-top:1px solid var(--line);margin-top:46px;padding-top:22px;
  font-size:12.5px;color:var(--text-dim);
}
.footer-bottom .links{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom .links a{color:var(--text-dim)}
.footer-bottom .links a:hover{color:var(--brand)}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .cmd-search{width:180px}
  .nav-menu a{padding:0 11px;font-size:14px}
}
@media (max-width:1024px){
  .section{padding:72px 0}
  .section--tight{padding:48px 0}
  .hero-inner{grid-template-columns:1fr;gap:34px;align-items:start}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .cmd-search{display:none}
}
@media (max-width:900px){
  .nav-wrap{height:64px}
  .nav-toggle{display:grid}
  .nav-right{gap:8px}
  .icon-btn{display:none}
  .nav-menu{
    position:fixed;inset:64px 0 0 0;z-index:190;
    flex-direction:column;align-items:stretch;gap:0;
    margin:0;padding:14px 24px 40px;
    background:#05070F;border-top:1px solid var(--line);
    overflow-y:auto;
    opacity:0;transform:translateY(-10px);pointer-events:none;
    transition:opacity .26s ease,transform .26s ease;
  }
  .nav-menu.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
  .nav-menu li{width:100%}
  .nav-menu a{
    display:flex;width:100%;height:auto;min-height:44px;
    padding:18px 2px;border-radius:0;border-bottom:1px solid var(--line);
    font-size:18px;color:var(--text-body);
  }
  .nav-menu a.active{background:transparent;color:var(--brand)}
  .page-hero{padding:56px 0 64px}
  .quick-bar{margin-top:-36px;padding:18px}
  .form-panel{padding:24px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section--tight{padding:40px 0}
  .section-head{margin-bottom:26px}
  .page-hero h1{font-size:clamp(26px,7vw,34px)}
  .hero-lede{font-size:15.5px}
  .cta-bar{padding:26px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .support-card{padding:24px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .brand-name{font-size:13.5px}
  .brand-sub{font-size:8.5px;letter-spacing:.14em}
  .brand-mark{width:26px;height:26px}
  .btn{height:44px;padding:0 18px;font-size:14.5px}
  .hero-side{padding:20px}
  .faq-q{font-size:15.5px;gap:14px}
  .quick-search{flex:1 1 100%}
  .quick-search input{height:44px}
  .form-foot{flex-direction:column;align-items:stretch}
  .form-foot .btn{width:100%}
  .footer-sub-form{flex-wrap:wrap}
  .footer-sub-form input{flex:1 1 100%}
  .footer-sub-form .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}