/* roulang page: index */
:root{
  --bg:#070C16;
  --bg-soft:#0B1322;
  --panel:#0E1626;
  --glass:rgba(255,255,255,0.06);
  --glass-strong:rgba(255,255,255,0.09);
  --line:rgba(255,255,255,0.10);
  --line-soft:rgba(255,255,255,0.06);
  --primary:#2FE3C4;
  --primary-dim:rgba(47,227,196,0.12);
  --primary-line:rgba(47,227,196,0.30);
  --accent:#FFB74D;
  --accent-dim:rgba(255,183,77,0.12);
  --danger:#FF6B5A;
  --text:#E8EEF7;
  --muted:#93A3B8;
  --disabled:#55637A;
  --radius-card:18px;
  --radius-btn:12px;
  --radius-img:14px;
  --radius-badge:6px;
  --shadow-card:0 20px 60px rgba(0,0,0,0.45);
  --shadow-btn:0 8px 28px rgba(47,227,196,0.35);
  --container:1200px;
  --gap:24px;
  --font-sans:"Inter","PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(760px 520px at 6% -8%, rgba(47,227,196,0.11), transparent 62%),
    radial-gradient(680px 500px at 98% 106%, rgba(255,183,77,0.09), transparent 62%),
    linear-gradient(rgba(255,255,255,0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.022) 1px, transparent 1px);
  background-size:auto,auto,24px 24px,24px 24px;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.site-main{position:relative;z-index:1;}

/* ============ 顶部命令栏 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(7,12,22,0.55);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.site-header.is-scrolled{
  background:rgba(7,12,22,0.86);
  border-bottom-color:var(--line);
  box-shadow:0 10px 40px rgba(0,0,0,0.45);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:64px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand-mark{
  width:32px;height:32px;
  border-radius:10px;
  background:linear-gradient(150deg,rgba(47,227,196,0.95),rgba(47,227,196,0.42));
  display:grid;place-items:center;
  box-shadow:0 6px 18px rgba(47,227,196,0.28);
  position:relative;
  overflow:hidden;
}
.brand-mark::before{
  content:"";
  width:12px;height:14px;
  border:2px solid #05121A;
  border-bottom:0;
  border-radius:7px 7px 0 0;
  position:absolute;top:7px;
}
.brand-mark::after{
  content:"";
  width:12px;height:2px;background:#05121A;border-radius:2px;
  position:absolute;bottom:9px;
}
.brand-text{
  font-size:16px;
  font-weight:700;
  letter-spacing:-0.01em;
  white-space:nowrap;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:8px;
  flex:1 1 auto;
}
.nav-link{
  position:relative;
  padding:8px 12px;
  border-radius:8px;
  font-size:14px;
  font-weight:500;
  color:var(--muted);
  transition:color .18s ease-out,background .18s ease-out;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,0.05);}
.nav-link.active{color:var(--text);}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 12px rgba(47,227,196,0.6);
}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.command-search{
  position:relative;
  display:flex;
  align-items:center;
  gap:8px;
  width:240px;
  height:36px;
  padding:0 10px;
  border-radius:12px;
  background:rgba(255,255,255,0.05);
  border:1px solid var(--line);
  transition:width .2s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.command-search:focus-within{
  width:320px;
  border-color:var(--primary-line);
  box-shadow:0 0 0 3px rgba(47,227,196,0.10);
}
.command-search svg{flex:0 0 auto;opacity:.6;}
.command-search input{
  flex:1 1 auto;
  min-width:0;
  border:0;
  background:transparent;
  font-size:13px;
  outline:none;
}
.command-search input::placeholder{color:var(--disabled);}
.key-badge{
  flex:0 0 auto;
  font-family:var(--font-mono);
  font-size:11px;
  padding:2px 6px;
  border-radius:6px;
  color:var(--muted);
  background:rgba(255,255,255,0.07);
  border:1px solid var(--line);
}
.search-panel{
  position:absolute;
  top:calc(100% + 10px);
  left:0;
  width:100%;
  min-width:300px;
  padding:8px;
  border-radius:14px;
  background:rgba(14,22,38,0.96);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px);
  opacity:0;
  visibility:hidden;
  transform:translateY(-6px);
  transition:opacity .18s ease-out,transform .18s ease-out,visibility .18s ease-out;
  z-index:80;
}
.command-search:focus-within .search-panel{opacity:1;visibility:visible;transform:translateY(0);}
.search-panel a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:9px 10px;
  border-radius:9px;
  font-size:13px;
  color:var(--muted);
  transition:background .18s ease-out,color .18s ease-out;
}
.search-panel a:hover{background:rgba(255,255,255,0.06);color:var(--text);}
.search-panel a span:last-child{font-family:var(--font-mono);font-size:11px;color:var(--disabled);}
.icon-btn{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(255,255,255,0.04);
  color:var(--muted);
  transition:color .18s ease-out,border-color .18s ease-out,background .18s ease-out;
}
.icon-btn:hover{color:var(--primary);border-color:var(--primary-line);background:rgba(47,227,196,0.08);}
.hamburger{
  display:none;
  width:38px;height:38px;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(255,255,255,0.04);
  padding:0;
  place-items:center;
}
.hamburger span{
  display:block;
  width:16px;height:2px;
  border-radius:2px;
  background:var(--text);
  margin:3px auto;
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.hamburger.is-open span:nth-child(1){transform:translateY(5px) rotate(45deg);}
.hamburger.is-open span:nth-child(2){opacity:0;}
.hamburger.is-open span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;
  inset:64px 0 0 0;
  z-index:55;
  padding:24px;
  background:rgba(7,12,22,0.97);
  backdrop-filter:blur(20px);
  display:none;
  flex-direction:column;
  gap:10px;
  overflow-y:auto;
}
.mobile-drawer.is-open{display:flex;}
.mobile-drawer .drawer-search{
  display:flex;
  align-items:center;
  gap:8px;
  height:44px;
  padding:0 14px;
  border-radius:12px;
  margin-bottom:8px;
  background:rgba(255,255,255,0.05);
  border:1px solid var(--line);
}
.mobile-drawer .drawer-search input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;font-size:14px;outline:none;
}
.mobile-drawer .drawer-search input::placeholder{color:var(--disabled);}
.mobile-drawer a.drawer-link{
  padding:14px 16px;
  border-radius:12px;
  font-size:15px;
  font-weight:500;
  color:var(--muted);
  border:1px solid transparent;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.mobile-drawer a.drawer-link:hover,
.mobile-drawer a.drawer-link.active{
  color:var(--text);
  background:rgba(255,255,255,0.06);
  border-color:var(--line);
}
.mobile-drawer .btn{margin-top:10px;width:100%;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border-radius:var(--radius-btn);
  font-size:14px;
  font-weight:600;
  letter-spacing:0;
  border:1px solid transparent;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,border-color .18s ease-out,color .18s ease-out,filter .18s ease-out;
  white-space:nowrap;
}
.btn-primary{
  background:var(--primary);
  color:#05121A;
  box-shadow:var(--shadow-btn);
}
.btn-primary:hover{
  transform:translateY(-1px);
  filter:brightness(1.06);
  box-shadow:0 12px 36px rgba(47,227,196,0.45);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 18px rgba(47,227,196,0.30);}
.btn-ghost{
  background:transparent;
  color:var(--text);
  border-color:transparent;
  padding:0 6px;
}
.btn-ghost:hover{color:var(--primary);}
.btn-ghost .arrow{transition:transform .18s ease-out;display:inline-block;}
.btn-ghost:hover .arrow{transform:translateX(3px);}
.btn-secondary{
  background:var(--glass);
  border-color:var(--line);
  color:var(--text);
}
.btn-secondary:hover{
  transform:translateY(-1px);
  border-color:var(--primary-line);
  background:rgba(255,255,255,0.09);
}
.btn-sm{height:36px;padding:0 16px;font-size:13px;border-radius:10px;}
.btn-block{width:100%;}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 通用板块 ============ */
.section{padding:96px 0;position:relative;}
.section-head{max-width:720px;margin-bottom:48px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--primary);
  padding:5px 12px;
  border-radius:999px;
  background:var(--primary-dim);
  border:1px solid var(--primary-line);
  margin-bottom:18px;
}
.section-title{
  font-size:clamp(24px,2.6vw,32px);
  line-height:1.32;
  font-weight:700;
  letter-spacing:-0.01em;
  margin-bottom:14px;
}
.section-desc{color:var(--muted);font-size:15px;max-width:660px;}
.mono-num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}

/* ============ Hero ============ */
.hero{padding:72px 0 88px;position:relative;overflow:hidden;}
.hero-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:var(--gap);
  align-items:center;
}
.hero-copy{grid-column:span 6;}
.status-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:500;
  color:var(--muted);
  padding:5px 12px 5px 10px;
  border-radius:999px;
  background:rgba(255,255,255,0.05);
  border:1px solid var(--line);
  margin-bottom:22px;
}
.status-pill i{
  width:7px;height:7px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 0 0 rgba(47,227,196,0.6);
  animation:pulse 2.2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(47,227,196,0.55);}
  70%{box-shadow:0 0 0 8px rgba(47,227,196,0);}
  100%{box-shadow:0 0 0 0 rgba(47,227,196,0);}
}
.hero h1{
  font-size:clamp(30px,4.4vw,54px);
  line-height:1.16;
  font-weight:700;
  letter-spacing:-0.02em;
  margin-bottom:20px;
}
.hero h1 em{
  font-style:normal;
  color:var(--primary);
}
.hero-sub{
  font-size:16px;
  color:var(--muted);
  max-width:520px;
  margin-bottom:26px;
}
.hero-points{display:grid;gap:10px;margin-bottom:32px;}
.hero-points li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  color:var(--muted);
}
.hero-points svg{flex:0 0 auto;margin-top:4px;}
.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.hero-visual{
  grid-column:span 6;
  position:relative;
}
.hero-visual img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:20px;
  border:1px solid var(--line);
  box-shadow:0 30px 80px rgba(0,0,0,0.55),0 0 0 1px rgba(47,227,196,0.12);
  background:var(--panel);
}
.hero-visual::after{
  content:"";
  position:absolute;
  inset:0;
  border-radius:20px;
  pointer-events:none;
  background:linear-gradient(115deg,rgba(255,255,255,0.16) 0%,transparent 38%,transparent 62%,rgba(47,227,196,0.12) 100%);
  opacity:.55;
}
.hero-float{
  position:absolute;
  left:-18px;
  bottom:-22px;
  display:flex;
  align-items:center;
  gap:14px;
  padding:14px 18px;
  border-radius:16px;
  background:rgba(14,22,38,0.86);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.ring{
  position:relative;
  width:56px;height:56px;
  border-radius:50%;
  background:conic-gradient(var(--primary) 0 72%, rgba(255,255,255,0.10) 72% 100%);
  display:grid;place-items:center;
  flex:0 0 auto;
}
.ring::before{
  content:"";
  position:absolute;
  inset:5px;
  border-radius:50%;
  background:#0B1322;
}
.ring b{
  position:relative;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:500;
  color:var(--primary);
}
.hero-float-text{font-size:12px;color:var(--muted);line-height:1.6;}
.hero-float-text strong{
  display:block;
  font-size:14px;
  font-weight:600;
  color:var(--text);
  margin-bottom:2px;
}

/* ============ 指标条 ============ */
.metrics{
  border-top:1px solid var(--line-soft);
  border-bottom:1px solid var(--line-soft);
  background:rgba(255,255,255,0.02);
}
.metrics-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
}
.metric{
  padding:32px 24px;
  border-left:1px solid var(--line-soft);
  text-align:left;
}
.metric:first-child{border-left:0;padding-left:0;}
.metric-value{
  font-family:var(--font-mono);
  font-size:30px;
  font-weight:500;
  letter-spacing:-0.02em;
  color:var(--text);
  line-height:1.2;
  margin-bottom:6px;
}
.metric-value span{font-size:16px;color:var(--muted);margin-left:4px;}
.metric-label{font-size:13px;color:var(--muted);}

/* ============ 流程 ============ */
.flow-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:var(--gap);
  position:relative;
}
.flow-grid::before{
  content:"";
  position:absolute;
  top:22px;
  left:4%;
  right:4%;
  height:1px;
  border-top:1px dashed rgba(255,255,255,0.14);
}
.flow-step{position:relative;padding-top:0;}
.step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:28px;
  min-width:44px;
  padding:0 12px;
  border-radius:999px;
  background:var(--primary-dim);
  border:1px solid var(--primary-line);
  color:var(--primary);
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:500;
  margin-bottom:20px;
  position:relative;
  z-index:1;
  background-color:#0C1524;
}
.flow-step h3{
  font-size:18px;
  font-weight:600;
  margin-bottom:8px;
  line-height:1.4;
}
.flow-step p{
  font-size:14px;
  color:var(--muted);
  line-height:1.7;
}

/* ============ Bento 权益 ============ */
.bento{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:var(--gap);
}
.bento-card{
  position:relative;
  border-radius:var(--radius-card);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .18s ease-out,border-color .18s ease-out;
  padding:28px;
  display:flex;
  flex-direction:column;
}
.bento-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,0.28),transparent);
}
.bento-card:hover{transform:translateY(-3px);border-color:var(--primary-line);}
.bento-card.large{grid-column:span 6;padding:0;}
.bento-card.small{grid-column:span 4;}
.bento-card .thumb{
  width:100%;
  aspect-ratio:16/9;
  overflow:hidden;
  border-radius:0;
}
.bento-card .thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .35s ease-out;
}
.bento-card:hover .thumb img{transform:scale(1.03);}
.bento-card.large .bento-body{padding:26px 28px 28px;}
.bento-card h3{
  font-size:18px;
  font-weight:600;
  margin-bottom:10px;
  line-height:1.4;
}
.bento-card p{
  font-size:14px;
  color:var(--muted);
  line-height:1.75;
  flex:1 1 auto;
}
.bento-icon{
  width:40px;height:40px;
  border-radius:11px;
  display:grid;place-items:center;
  background:var(--primary-dim);
  border:1px solid var(--primary-line);
  color:var(--primary);
  margin-bottom:18px;
}
.tag{
  display:inline-flex;
  align-items:center;
  height:22px;
  padding:0 8px;
  border-radius:var(--radius-badge);
  font-size:12px;
  font-weight:500;
  color:var(--primary);
  background:var(--primary-dim);
  border:1px solid rgba(47,227,196,0.22);
  white-space:nowrap;
}
.tag-accent{
  color:var(--accent);
  background:var(--accent-dim);
  border-color:rgba(255,183,77,0.22);
}
.bento-card .tag{align-self:flex-start;margin-bottom:14px;}

/* ============ 进度组 ============ */
.progress-wrap{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:var(--gap);
  align-items:start;
}
.progress-intro{grid-column:span 4;}
.progress-list{
  grid-column:span 8;
  display:grid;
  gap:26px;
  padding:32px;
  border-radius:var(--radius-card);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.progress-item{}
.progress-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:14px;
  margin-bottom:10px;
}
.progress-head .pct{
  font-family:var(--font-mono);
  font-size:13px;
  color:var(--accent);
}
.progress-track{
  position:relative;
  height:8px;
  border-radius:999px;
  background:rgba(255,255,255,0.08);
  overflow:hidden;
}
.progress-fill{
  display:block;
  height:100%;
  border-radius:999px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  box-shadow:0 0 16px rgba(47,227,196,0.35);
  position:relative;
}
.progress-note{
  margin-top:22px;
  font-size:12px;
  color:var(--disabled);
}

/* ============ 最新信息 ============ */
.news-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:var(--gap);
}
.news-card{
  display:flex;
  flex-direction:column;
  border-radius:var(--radius-card);
  background:var(--glass);
  border:1px solid var(--line);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .18s ease-out,border-color .18s ease-out;
}
.news-card:hover{transform:translateY(-3px);border-color:var(--primary-line);}
.news-card .news-thumb{
  width:100%;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--panel);
}
.news-card .news-thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .35s ease-out;
}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{
  padding:22px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1 1 auto;
}
.news-card h3{
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color .18s ease-out;
}
.news-card:hover h3{color:var(--primary);}
.news-summary{
  font-size:13px;
  color:var(--muted);
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:auto;
  padding-top:6px;
}
.news-time{
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--disabled);
}
.news-arrow{
  width:32px;height:32px;
  border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--line);
  color:var(--muted);
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out;
  flex:0 0 auto;
}
.news-card:hover .news-arrow{
  background:var(--primary);
  color:#05121A;
  border-color:var(--primary);
  transform:translateX(2px);
}
.news-card.is-lead{
  grid-column:span 6;
  grid-row:span 1;
}
.news-card.is-lead .news-thumb{aspect-ratio:16/9;}
.news-card.is-lead .news-body{padding:28px;}
.news-card.is-lead h3{font-size:22px;line-height:1.42;}
.news-card.is-lead .news-summary{font-size:14px;}
.news-side{
  grid-column:span 6;
  display:grid;
  gap:16px;
  align-content:start;
}
.news-side .news-card{flex-direction:row;align-items:stretch;}
.news-side .news-thumb{
  width:150px;
  flex:0 0 150px;
  aspect-ratio:1/1;
}
.news-side .news-body{padding:18px;}

.empty-state{
  grid-column:span 12;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:14px;
  padding:56px 24px;
  border:1px dashed rgba(255,255,255,0.16);
  border-radius:var(--radius-card);
  text-align:center;
}
.empty-state svg{opacity:.5;}
.empty-state p{font-size:14px;color:var(--muted);}

/* ============ FAQ ============ */
.faq-list{
  max-width:820px;
  margin:0 auto;
  display:grid;
  gap:12px;
}
.faq-item{
  border-radius:14px;
  background:var(--glass);
  border:1px solid var(--line);
  overflow:hidden;
  transition:border-color .18s ease-out,background .18s ease-out;
  position:relative;
}
.faq-item:hover{border-color:rgba(255,255,255,0.18);}
.faq-item::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:var(--primary);
  opacity:0;
  transition:opacity .18s ease-out;
}
.faq-item[open]::before{opacity:1;}
.faq-item[open]{background:rgba(255,255,255,0.075);border-color:var(--primary-line);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:18px 22px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:17px;
  font-weight:600;
  line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  width:28px;height:28px;
  border-radius:50%;
  display:grid;place-items:center;
  font-size:16px;
  font-weight:400;
  color:var(--muted);
  border:1px solid var(--line);
  transition:color .18s ease-out,border-color .18s ease-out,transform .18s ease-out;
}
.faq-item[open] summary::after{
  content:"−";
  color:var(--primary);
  border-color:var(--primary-line);
  transform:rotate(180deg);
}
.faq-body{
  padding:0 22px 18px;
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
}

/* ============ CTA 通栏 ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:24px;
  background:linear-gradient(120deg,rgba(47,227,196,0.10),rgba(255,183,77,0.08));
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  padding:48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-band::before{
  content:"";
  position:absolute;
  top:-60%;
  left:-10%;
  width:60%;
  height:220%;
  transform:rotate(-18deg);
  background:linear-gradient(90deg,transparent,rgba(255,255,255,0.07),transparent);
  pointer-events:none;
}
.cta-band h2{
  font-size:clamp(22px,2.4vw,30px);
  font-weight:700;
  letter-spacing:-0.01em;
  margin-bottom:10px;
}
.cta-band p{font-size:15px;color:var(--muted);max-width:560px;}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;position:relative;z-index:1;}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:96px;
  border-top:1px solid var(--line-soft);
  background:rgba(255,255,255,0.015);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding:64px 0 48px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{font-size:13px;color:var(--muted);line-height:1.8;max-width:300px;}
.footer-col h4{
  font-size:13px;
  font-weight:600;
  color:var(--text);
  margin-bottom:6px;
  padding-bottom:12px;
  position:relative;
}
.footer-col h4::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:22px;height:3px;
  border-radius:2px;
  background:var(--primary);
}
.footer-col ul{display:grid;gap:10px;margin-top:14px;}
.footer-col a,
.footer-col span{
  font-size:13px;
  color:var(--muted);
  transition:color .18s ease-out;
}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  border-top:1px solid var(--line-soft);
  padding:20px 0 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--disabled);
}
.footer-bottom a{color:var(--muted);}
.footer-bottom a:hover{color:var(--primary);}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .container{max-width:1140px;}
}
@media (max-width:1024px){
  .section{padding:72px 0;}
  .main-nav{display:none;}
  .command-search{width:200px;}
  .command-search:focus-within{width:260px;}
  .hamburger{display:grid;}
  .hero-grid{gap:24px;}
  .hero-copy{grid-column:span 12;}
  .hero-visual{grid-column:span 12;margin-top:12px;}
  .hero-float{left:12px;bottom:-16px;}
  .flow-grid{grid-template-columns:repeat(2,1fr);gap:32px 24px;}
  .flow-grid::before{display:none;}
  .bento-card.large{grid-column:span 6;}
  .bento-card.small{grid-column:span 6;}
  .progress-intro{grid-column:span 12;}
  .progress-list{grid-column:span 12;}
  .news-card.is-lead{grid-column:span 12;}
  .news-side{grid-column:span 12;grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);}
  .metric{padding:24px 18px;}
  .metric:nth-child(3){border-left:0;padding-left:0;}
  .metric:nth-child(3),
  .metric:nth-child(4){border-top:1px solid var(--line-soft);}
  .bento-card.large,
  .bento-card.small{grid-column:span 12;}
  .news-side{grid-template-columns:1fr;}
  .news-side .news-thumb{width:120px;flex:0 0 120px;}
  .cta-band{padding:32px 24px;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .hero-float{position:static;margin-top:16px;width:100%;}
  .command-search{display:none;}
  .header-actions .icon-btn{display:none;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  .hero{padding:40px 0 56px;}
  .hero h1{font-size:28px;}
  .hero-actions .btn{width:100%;}
  .hero-actions .btn-ghost{justify-content:center;}
  .flow-grid{grid-template-columns:1fr;}
  .metrics-grid{grid-template-columns:1fr;}
  .metric{border-left:0;padding-left:0;}
  .metric+.metric{border-top:1px solid var(--line-soft);}
  .faq-item summary{font-size:15px;padding:16px 18px;}
  .faq-body{padding:0 18px 16px;font-size:14px;}
  .news-card.is-lead .news-body{padding:20px;}
  .news-card.is-lead h3{font-size:18px;}
  .footer-grid{padding:48px 0 32px;}
  .cta-band h2{font-size:20px;}
}

/* roulang page: category1 */
:root{
  --bg:#070C16;
  --panel:#0E1626;
  --glass:rgba(255,255,255,.06);
  --glass-strong:rgba(255,255,255,.09);
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.07);
  --brand:#2FE3C4;
  --brand-soft:rgba(47,227,196,.12);
  --amber:#FFB74D;
  --amber-soft:rgba(255,183,77,.14);
  --warn:#FF6B5A;
  --text:#E8EEF7;
  --muted:#93A3B8;
  --dim:#55637A;
  --r-card:18px;
  --r-btn:12px;
  --r-img:14px;
  --r-badge:6px;
  --container:1200px;
  --shadow-card:0 20px 60px rgba(0,0,0,.45);
  --shadow-btn:0 8px 28px rgba(47,227,196,.35);
  --ease:180ms ease-out;
  --font-sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.7;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(680px 420px at 8% -6%, rgba(47,227,196,.12), transparent 65%),
    radial-gradient(720px 460px at 96% 104%, rgba(255,183,77,.10), transparent 68%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  opacity:.5;
  background-image:
    linear-gradient(rgba(255,255,255,.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.02) 1px, transparent 1px);
  background-size:24px 24px;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease),opacity var(--ease);}
button,input{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3{letter-spacing:-.01em;line-height:1.25;font-weight:700;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

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

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(7,12,22,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:64px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:32px;
  height:32px;
  border-radius:10px;
  background:linear-gradient(140deg,var(--brand),#1d9c8a);
  position:relative;
  box-shadow:0 6px 18px rgba(47,227,196,.28);
}
.brand-mark::before{
  content:"";
  position:absolute;
  inset:8px 9px 8px 9px;
  border:2px solid #06131a;
  border-bottom:none;
  border-radius:3px 3px 0 0;
}
.brand-mark::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:8px;
  width:5px;
  height:7px;
  transform:translateX(-50%);
  background:#06131a;
  border-radius:1px;
}
.brand-text{
  font-size:16px;
  font-weight:700;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
  flex:1;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:64px;
  padding:0 12px;
  font-size:14.5px;
  color:var(--muted);
  font-weight:500;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:0;
  height:2px;
  border-radius:2px;
  background:transparent;
  transition:background var(--ease);
}
.nav-link:hover{color:var(--text);}
.nav-link.active{color:var(--text);}
.nav-link.active::after{background:var(--brand);box-shadow:0 0 12px rgba(47,227,196,.6);}

.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.command-search{
  position:relative;
  display:flex;
  align-items:center;
  width:240px;
  transition:width var(--ease);
}
.command-search:focus-within{width:320px;}
.command-search svg{
  position:absolute;
  left:12px;
  width:16px;
  height:16px;
  color:var(--dim);
  pointer-events:none;
}
.search-input{
  width:100%;
  height:38px;
  padding:0 54px 0 36px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text);
  font-size:13.5px;
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.search-input::placeholder{color:var(--dim);}
.search-input:hover{border-color:rgba(47,227,196,.28);}
.search-input:focus{
  outline:none;
  border-color:rgba(47,227,196,.55);
  box-shadow:0 0 0 3px rgba(47,227,196,.12);
  background:rgba(255,255,255,.06);
}
.search-kbd{
  position:absolute;
  right:8px;
  font-family:var(--font-mono);
  font-size:10.5px;
  line-height:1;
  padding:5px 6px;
  border-radius:5px;
  color:var(--muted);
  background:rgba(255,255,255,.07);
  border:1px solid var(--line);
  pointer-events:none;
}
.icon-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--muted);
  cursor:pointer;
  transition:all var(--ease);
}
.icon-btn svg{width:17px;height:17px;}
.icon-btn:hover{color:var(--brand);border-color:rgba(47,227,196,.4);background:rgba(47,227,196,.08);}
.icon-btn:active{transform:translateY(1px);}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease),filter var(--ease);
}
.btn-sm{height:36px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-primary{
  background:var(--brand);
  color:#04121A;
  box-shadow:var(--shadow-btn);
}
.btn-primary:hover{
  transform:translateY(-1px);
  filter:brightness(1.06);
  box-shadow:0 10px 36px rgba(47,227,196,.45);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 14px rgba(47,227,196,.35);}
.btn-ghost{
  background:transparent;
  color:var(--text);
  padding:0 4px;
  height:auto;
  border:none;
}
.btn-ghost:hover{color:var(--brand);}
.btn-ghost .arrow{display:inline-block;transition:transform var(--ease);}
.btn-ghost:hover .arrow{transform:translateX(3px);}
.btn-outline{
  background:var(--glass);
  border:1px solid var(--line);
  color:var(--text);
}
.btn-outline:hover{
  border-color:rgba(47,227,196,.4);
  background:rgba(47,227,196,.08);
  transform:translateY(-1px);
}
.btn-outline:active{transform:translateY(0);}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;box-shadow:none;transform:none;}

.nav-toggle{
  display:none;
  width:38px;
  height:38px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:var(--glass);
  cursor:pointer;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
}
.nav-toggle span{
  display:block;
  width:16px;
  height:2px;
  border-radius:2px;
  background:var(--text);
  transition:transform var(--ease),opacity var(--ease);
}
body.drawer-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg);}
body.drawer-open .nav-toggle span:nth-child(2){opacity:0;}
body.drawer-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;
  inset:64px 0 0 0;
  z-index:55;
  background:rgba(9,15,26,.96);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  padding:28px 24px 40px;
  transform:translateY(-8px);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
  overflow-y:auto;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.mobile-drawer .drawer-search{margin-bottom:22px;width:100%;}
.mobile-drawer .drawer-search .command-search{width:100%;}
.mobile-drawer .drawer-search .command-search:focus-within{width:100%;}
.drawer-nav{display:grid;gap:4px;margin-bottom:26px;}
.drawer-nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:16px 4px;
  font-size:17px;
  font-weight:500;
  color:var(--muted);
  border-bottom:1px solid var(--line-soft);
}
.drawer-nav a.active{color:var(--brand);}
.drawer-nav a:hover{color:var(--text);}
.drawer-cta{width:100%;}

/* ============ 页面主体 ============ */
main{position:relative;z-index:1;}
main::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,227,196,.5),transparent);
  opacity:.6;
}

.crumbs{padding:22px 0 0;}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.crumbs li:not(:last-child)::after{content:"/";margin-left:8px;color:var(--dim);}
.crumbs a:hover{color:var(--brand);}
.crumbs [aria-current="page"]{color:var(--text);}

.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{font-size:clamp(24px,2.6vw,32px);}
.section-head .lead{margin-top:14px;color:var(--muted);font-size:16px;}

.badge{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:5px 11px;
  border-radius:var(--r-badge);
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
  line-height:1.5;
}
.badge-brand{background:var(--brand-soft);color:var(--brand);}
.badge-amber{background:var(--amber-soft);color:var(--amber);}
.badge .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 0 0 rgba(47,227,196,.6);
  animation:pulse 2.4s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(47,227,196,.55);}
  70%{box-shadow:0 0 0 8px rgba(47,227,196,0);}
  100%{box-shadow:0 0 0 0 rgba(47,227,196,0);}
}

/* 分类 Hero */
.cat-hero{padding:34px 0 0;}
.cat-hero-inner{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
  min-height:360px;
  padding-bottom:8px;
}
.cat-hero-copy h1{
  font-size:clamp(28px,3.6vw,44px);
  margin:18px 0 16px;
  max-width:14em;
}
.cat-hero-copy .hero-sub{
  color:var(--muted);
  font-size:16.5px;
  max-width:32em;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:28px;}
.cat-hero-figure{position:relative;margin:0;}
.cat-hero-figure > img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:20px;
  border:1px solid var(--line);
  box-shadow:0 28px 70px rgba(0,0,0,.55),0 0 0 1px rgba(47,227,196,.14);
}
.float-card{
  position:absolute;
  left:-18px;
  bottom:-22px;
  display:flex;
  align-items:center;
  gap:14px;
  padding:14px 18px;
  border-radius:16px;
  background:rgba(14,22,38,.86);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
}
.float-card .float-label{display:block;font-size:11.5px;color:var(--muted);letter-spacing:.06em;}
.float-card strong{display:block;font-size:15px;font-weight:600;}
.float-ring{
  font-family:var(--font-mono);
  font-size:13px;
  font-weight:700;
  color:var(--brand);
  padding:6px 10px;
  border-radius:999px;
  border:1px solid rgba(47,227,196,.35);
  background:rgba(47,227,196,.10);
}

/* 定义段 */
.define-grid{
  display:grid;
  grid-template-columns:280px 1fr;
  gap:48px;
  align-items:start;
  padding-top:8px;
}
.define-grid h2{font-size:clamp(22px,2.4vw,28px);}
.define-body{max-width:740px;}
.define-body p{color:var(--muted);font-size:16px;line-height:1.8;}
.define-body p + p{margin-top:18px;}
.define-body strong{color:var(--text);font-weight:600;}

/* 要点网格 2x2 */
.point-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.point-card{
  padding:26px 24px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease),background var(--ease);
}
.point-card:hover{
  transform:translateY(-3px);
  border-color:rgba(47,227,196,.3);
  background:var(--glass-strong);
}
.point-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  border-radius:12px;
  background:var(--brand-soft);
  color:var(--brand);
  margin-bottom:16px;
}
.point-icon svg{width:21px;height:21px;}
.point-card h3{font-size:19px;margin-bottom:10px;}
.point-card p{color:var(--muted);font-size:14.5px;line-height:1.75;}

/* 步骤清单 */
.steps{display:grid;gap:16px;max-width:900px;}
.step-item{
  position:relative;
  display:grid;
  grid-template-columns:auto 1fr;
  gap:20px;
  padding:22px 24px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  transition:border-color var(--ease),background var(--ease),transform var(--ease);
}
.step-item:hover{
  border-color:rgba(47,227,196,.3);
  background:var(--glass-strong);
  transform:translateY(-2px);
}
.step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:28px;
  padding:0 10px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand);
  font-family:var(--font-mono);
  font-size:13px;
  font-weight:700;
  letter-spacing:.04em;
}
.step-body h3{font-size:19px;margin-bottom:8px;}
.step-body p{color:var(--muted);font-size:14.5px;line-height:1.75;}

/* 对比表 */
.table-wrap{
  overflow-x:auto;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--glass);
  box-shadow:var(--shadow-card);
}
table{width:100%;border-collapse:collapse;min-width:640px;}
thead th{
  text-align:left;
  padding:15px 22px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--muted);
  background:rgba(255,255,255,.03);
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
tbody td{
  padding:17px 22px;
  font-size:14.5px;
  color:var(--muted);
  border-bottom:1px solid var(--line-soft);
  vertical-align:middle;
}
tbody td:first-child{color:var(--text);font-weight:600;font-size:15px;}
tbody tr:nth-child(even){background:rgba(255,255,255,.022);}
tbody tr:last-child td{border-bottom:0;}
tbody tr:hover{background:rgba(47,227,196,.05);}
.tag{
  display:inline-block;
  padding:3px 9px;
  border-radius:var(--r-badge);
  font-size:12px;
  font-weight:600;
  white-space:nowrap;
}
.tag-ok{background:var(--brand-soft);color:var(--brand);}
.tag-mid{background:var(--amber-soft);color:var(--amber);}
.tag-no{background:rgba(255,107,90,.14);color:var(--warn);}

/* FAQ */
.faq-list{
  max-width:820px;
  margin:0 auto;
  display:grid;
  gap:12px;
}
.faq-item{
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  padding:0 22px;
  transition:border-color var(--ease),background var(--ease),box-shadow var(--ease);
}
.faq-item:hover{border-color:rgba(47,227,196,.28);background:var(--glass-strong);}
.faq-item[open]{
  border-color:rgba(47,227,196,.3);
  background:var(--glass-strong);
  box-shadow:inset 3px 0 0 var(--brand);
}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:19px 0;
  font-size:17.5px;
  font-weight:600;
  cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  flex-shrink:0;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:28px;
  height:28px;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--muted);
  font-size:17px;
  font-weight:400;
  line-height:1;
  transition:all var(--ease);
}
.faq-item[open] summary::after{
  content:"−";
  color:var(--brand);
  border-color:rgba(47,227,196,.45);
  background:var(--brand-soft);
}
.faq-item summary:hover::after{color:var(--brand);border-color:rgba(47,227,196,.45);}
.faq-answer{
  padding:0 0 18px;
  color:var(--muted);
  font-size:15px;
  line-height:1.8;
  max-width:70ch;
}

/* CTA */
.cta-section{padding:16px 0 96px;}
.cta-band{
  position:relative;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  padding:46px 48px;
  border-radius:24px;
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.cta-band::before{
  content:"";
  position:absolute;
  top:-70%;
  left:-12%;
  width:46%;
  height:240%;
  background:linear-gradient(45deg,transparent,rgba(47,227,196,.13),rgba(255,183,77,.08),transparent);
  transform:rotate(8deg);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);}
.cta-band p{margin-top:10px;color:var(--muted);font-size:15.5px;max-width:46em;}
.cta-actions{
  display:flex;
  align-items:center;
  gap:20px;
  flex-shrink:0;
  position:relative;
  z-index:1;
}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  z-index:1;
  border-top:1px solid var(--line);
  background:rgba(9,15,26,.72);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{
  color:var(--muted);
  font-size:14px;
  line-height:1.8;
  max-width:34em;
}
.footer-col h4{
  position:relative;
  font-size:14px;
  font-weight:600;
  color:var(--text);
  padding-bottom:12px;
  margin-bottom:16px;
}
.footer-col h4::before{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:18px;
  height:3px;
  border-radius:2px;
  background:var(--brand);
}
.footer-col ul{display:grid;gap:11px;}
.footer-col a,.footer-col span{
  font-size:14px;
  color:var(--muted);
}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid var(--line-soft);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--dim);
}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .container{max-width:1140px;}
}
@media (max-width:1024px){
  .command-search{width:190px;}
  .command-search:focus-within{width:240px;}
  .cat-hero-inner{gap:40px;}
  .define-grid{grid-template-columns:1fr;gap:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:38px 32px;}
  .cta-actions{flex-wrap:wrap;}
}
@media (max-width:900px){
  .main-nav,.header-actions .command-search,.header-actions .icon-btn,.header-actions .btn{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{justify-content:space-between;gap:16px;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .section-tight{padding:44px 0;}
  .cat-hero-inner{
    grid-template-columns:1fr;
    gap:34px;
    min-height:0;
    padding-bottom:0;
  }
  .cat-hero-copy h1{max-width:100%;}
  .float-card{left:0;bottom:-16px;padding:12px 14px;}
  .point-grid{grid-template-columns:1fr;}
  .step-item{grid-template-columns:1fr;gap:14px;}
  .faq-item summary{font-size:16px;}
  .cta-section{padding-bottom:64px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .cat-hero-copy h1{font-size:26px;}
  .hero-actions{gap:14px;}
  .hero-actions .btn-primary{width:100%;}
  .brand-text{font-size:15px;}
  .cta-band{padding:30px 22px;}
  .cta-actions{width:100%;flex-direction:column;align-items:stretch;gap:14px;}
  .cta-actions .btn-primary{width:100%;}
  .float-card .float-label{display:none;}
}

/* roulang page: article */
:root{
  --bg:#070C16;
  --panel:#0E1626;
  --glass:rgba(255,255,255,.06);
  --glass-2:rgba(255,255,255,.04);
  --line:rgba(255,255,255,.10);
  --hair:rgba(255,255,255,.08);
  --primary:#2FE3C4;
  --primary-soft:rgba(47,227,196,.12);
  --amber:#FFB74D;
  --warn:#FF6B5A;
  --text:#E8EEF7;
  --muted:#93A3B8;
  --dim:#55637A;
  --r-card:18px;
  --r-btn:12px;
  --r-img:14px;
  --r-badge:6px;
  --shadow-card:0 20px 60px rgba(0,0,0,.45);
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Consolas,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding-left:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
::selection{background:rgba(47,227,196,.28);color:#fff}

/* ---------- 背景层 ---------- */
.bg-layer{position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(720px 460px at 6% -8%, rgba(47,227,196,.10), transparent 68%),
    radial-gradient(680px 520px at 104% 106%, rgba(255,183,77,.08), transparent 70%);
}
.bg-layer::after{content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:24px 24px;
}
.site-header,main,.site-footer{position:relative;z-index:1}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease),filter .18s var(--ease);
}
.btn-primary{background:var(--primary);color:#04231E;box-shadow:0 8px 28px rgba(47,227,196,.35)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 36px rgba(47,227,196,.52);filter:brightness(1.05)}
.btn-primary:active{transform:none;box-shadow:0 6px 20px rgba(47,227,196,.32)}
.btn-secondary{background:var(--glass);color:var(--text);border-color:var(--line)}
.btn-secondary:hover{transform:translateY(-1px);border-color:rgba(47,227,196,.4);background:rgba(255,255,255,.09)}
.btn-secondary:active{transform:none}
.btn-ghost{background:transparent;color:var(--primary);padding:0;height:auto}
.btn-ghost .arrow{transition:transform .18s var(--ease)}
.btn-ghost:hover .arrow{transform:translateX(3px)}
.btn-sm{height:36px;padding:0 16px;font-size:14px;border-radius:10px}
.btn:disabled{opacity:.4;cursor:not-allowed;box-shadow:none;transform:none}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,12,22,.72);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:32px;height:32px;border-radius:10px;position:relative;flex-shrink:0;
  background:linear-gradient(135deg,#2FE3C4,#17A88F);
  box-shadow:0 0 0 1px rgba(47,227,196,.35),0 6px 18px rgba(47,227,196,.28);
}
.brand-mark::after{
  content:"";position:absolute;left:9px;top:8px;width:14px;height:16px;
  border:2px solid #06201C;border-bottom:none;border-radius:3px 3px 0 0;
}
.brand-text{font-size:16px;font-weight:700;color:var(--text);letter-spacing:.01em;white-space:nowrap}
.main-nav{display:flex;align-items:stretch;height:64px;gap:2px;margin-left:6px}
.nav-link{
  position:relative;display:flex;align-items:center;
  padding:0 12px;font-size:14px;font-weight:500;color:var(--muted);
  transition:color .18s var(--ease),background .18s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--text)}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;
  border-radius:2px;background:var(--primary);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}

.command-search{position:relative;width:240px;transition:width .18s var(--ease)}
.command-search:focus-within{width:320px}
.command-search .search-icon{
  position:absolute;left:12px;top:50%;transform:translateY(-50%);
  width:15px;height:15px;color:var(--dim);pointer-events:none;
}
.command-search input{
  width:100%;height:36px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  color:var(--text);font-size:13px;padding:0 54px 0 34px;
  outline:none;transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
}
.command-search input::placeholder{color:var(--dim)}
.command-search input:focus{
  border-color:rgba(47,227,196,.55);
  background:rgba(47,227,196,.06);
  box-shadow:0 0 0 3px rgba(47,227,196,.12);
}
.kbd-hint{
  position:absolute;right:8px;top:50%;transform:translateY(-50%);
  font-family:var(--font-mono);font-size:11px;color:var(--dim);
  border:1px solid var(--line);border-radius:6px;padding:1px 6px;
  background:rgba(255,255,255,.04);pointer-events:none;
}
.search-panel{
  position:absolute;left:0;right:0;top:44px;z-index:20;
  background:rgba(14,22,38,.96);
  border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-card);backdrop-filter:blur(18px);
  padding:8px;opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s;
}
.command-search:focus-within .search-panel{opacity:1;visibility:visible;transform:translateY(0)}
.search-panel a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:8px 10px;border-radius:8px;font-size:13px;color:var(--muted);
  transition:background .18s var(--ease),color .18s var(--ease);
}
.search-panel a:hover{background:rgba(47,227,196,.10);color:var(--primary)}
.search-panel .kbd-hint{position:static;transform:none}

.icon-btn{
  width:36px;height:36px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--muted);
  transition:all .18s var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:rgba(47,227,196,.45);background:rgba(47,227,196,.10)}
.icon-btn svg{width:16px;height:16px}

.nav-toggle{
  display:none;width:38px;height:36px;border-radius:10px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer;
  transition:all .18s var(--ease);
}
.nav-toggle span{display:block;width:16px;height:1.5px;background:var(--muted);border-radius:2px;transition:background .18s var(--ease)}
.nav-toggle:hover span{background:var(--primary)}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(7,12,22,.97);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  padding:20px 24px 32px;
  display:flex;flex-direction:column;gap:22px;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
}
.mobile-drawer.open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  background:rgba(255,255,255,.05);color:var(--text);font-size:20px;line-height:1;cursor:pointer;
  transition:all .18s var(--ease);
}
.drawer-close:hover{color:var(--primary);border-color:rgba(47,227,196,.45)}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-link{
  padding:14px 14px;border-radius:12px;font-size:15px;font-weight:500;color:var(--muted);
  border:1px solid transparent;transition:all .18s var(--ease);
}
.drawer-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.drawer-link.active{color:var(--primary);background:var(--primary-soft);border-color:rgba(47,227,196,.28)}
.drawer-cta{width:100%}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:22px 0 0}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--dim)}
.breadcrumb a{color:var(--muted);transition:color .18s var(--ease)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .current{color:var(--text);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头 ---------- */
.article-hero{padding:26px 0 34px;border-bottom:1px solid var(--line)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  padding:5px 10px;border-radius:var(--r-badge);
  background:var(--primary-soft);color:var(--primary);
  border:1px solid rgba(47,227,196,.22);
}
.badge-amber{background:rgba(255,183,77,.12);color:var(--amber);border-color:rgba(255,183,77,.24)}
.status-dot{width:6px;height:6px;border-radius:50%;background:var(--primary);animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(47,227,196,.45)}50%{opacity:.65;box-shadow:0 0 0 5px rgba(47,227,196,0)}}
.article-hero h1{
  font-size:clamp(28px,3.8vw,44px);
  line-height:1.26;font-weight:700;letter-spacing:-.01em;
  margin:16px 0 0;color:#F4F8FF;min-height:2.6em;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  max-width:900px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;margin-top:18px;font-size:13px;color:var(--muted)}
.meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-item .num{font-family:var(--font-mono);color:var(--text)}
.meta-sep{width:1px;height:12px;background:var(--line)}

/* ---------- 文章布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);
  gap:48px;padding:52px 0 0;align-items:start;
}
.article-main{min-width:0}
.article-body{max-width:760px;font-size:16px;line-height:1.75;color:var(--text);overflow-wrap:break-word;word-break:break-word}
.article-body p{margin:0 0 18px}
.article-body h2{
  position:relative;font-size:clamp(21px,2.4vw,28px);line-height:1.4;font-weight:700;
  color:#F4F8FF;margin:48px 0 18px;padding-left:16px;letter-spacing:-.005em;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--primary),rgba(47,227,196,.35));
}
.article-body h3{font-size:20px;line-height:1.5;font-weight:600;color:#F4F8FF;margin:32px 0 12px}
.article-body h4{font-size:17px;font-weight:600;color:var(--text);margin:24px 0 10px}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:0 0 8px}
.article-body li::marker{color:var(--primary)}
.article-body strong{color:#fff;font-weight:600}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(47,227,196,.35);transition:border-color .18s var(--ease),color .18s var(--ease)}
.article-body a:hover{border-bottom-color:var(--primary);color:#66F0D8}
.article-body blockquote{
  margin:28px 0;padding:18px 20px;border-radius:var(--r-img);
  background:var(--glass);border:1px solid var(--line);border-left:3px solid var(--primary);
  color:var(--muted);font-size:15px;line-height:1.8;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:24px auto;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--dim);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14px;border-radius:12px;overflow:hidden}
.article-body th,.article-body td{padding:10px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.article-body th{background:rgba(255,255,255,.05);color:var(--text);font-weight:600}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.03)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}

.article-foot{margin-top:40px;padding-top:26px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:12px;align-items:center}

/* ---------- 空态 ---------- */
.empty-state{
  border:1px dashed rgba(255,255,255,.16);border-radius:var(--r-card);
  padding:56px 24px;text-align:center;background:rgba(255,255,255,.02);
}
.empty-state svg{width:38px;height:38px;color:var(--dim);margin:0 auto 14px}
.empty-state p{font-size:15px;color:var(--muted);margin-bottom:18px}

/* ---------- 侧栏 ---------- */
.sidebar{display:flex;flex-direction:column;gap:18px;min-width:0}
.side-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--shadow-card);
  position:relative;overflow:hidden;
}
.side-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.28),transparent);
}
.side-card h3{
  display:flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;letter-spacing:.04em;color:var(--text);
  margin:0 0 14px;padding-bottom:12px;border-bottom:1px solid var(--line);
}
.side-card h3::before{content:"";width:3px;height:13px;border-radius:2px;background:var(--primary)}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;padding:7px 10px;border-radius:8px;font-size:13.5px;color:var(--muted);
  border-left:2px solid transparent;line-height:1.5;
  transition:all .18s var(--ease);
}
.toc-list a:hover{color:var(--primary);background:var(--primary-soft);border-left-color:var(--primary)}
.side-list{display:flex;flex-direction:column;gap:2px}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:9px 10px;border-radius:8px;font-size:13.5px;color:var(--muted);
  transition:all .18s var(--ease);
}
.side-list a:hover{color:var(--primary);background:var(--primary-soft)}
.side-list a svg{width:13px;height:13px;flex-shrink:0;transition:transform .18s var(--ease)}
.side-list a:hover svg{transform:translateX(3px)}
.side-note{font-size:13px;line-height:1.7;color:var(--dim);margin-bottom:14px}
.side-card .btn{width:100%}

/* ---------- 相关推荐 ---------- */
.related{padding:72px 0 96px}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:28px}
.section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;letter-spacing:-.01em;color:#F4F8FF}
.section-head p{font-size:14px;color:var(--muted);margin-top:6px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rel-card{
  display:flex;flex-direction:column;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.rel-card:hover{transform:translateY(-3px);border-color:rgba(47,227,196,.3);box-shadow:0 26px 70px rgba(0,0,0,.55)}
.rel-thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--panel)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.rel-card:hover .rel-thumb img{transform:scale(1.03)}
.rel-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:16px;font-weight:600;line-height:1.5;color:var(--text);transition:color .18s var(--ease)}
.rel-card:hover .rel-body h3{color:var(--primary)}
.rel-body p{font-size:13.5px;line-height:1.7;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:12px;color:var(--dim);font-family:var(--font-mono)}
.rel-arrow{
  width:28px;height:28px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--muted);transition:all .18s var(--ease);
}
.rel-card:hover .rel-arrow{background:var(--primary-soft);border-color:rgba(47,227,196,.45);color:var(--primary)}
.rel-arrow svg{width:12px;height:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:rgba(9,15,26,.86);border-top:1px solid var(--line);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:48px}
.footer-brand .brand{margin-bottom:16px}
.footer-desc{font-size:13.5px;line-height:1.8;color:var(--muted);max-width:340px}
.footer-col h4{
  position:relative;font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--text);
  margin:0 0 16px;padding-top:12px;
}
.footer-col h4::before{content:"";position:absolute;left:0;top:0;width:20px;height:3px;border-radius:2px;background:var(--primary)}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{font-size:13.5px;color:var(--muted);transition:color .18s var(--ease)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  padding:20px 0;border-top:1px solid var(--line);
  font-size:13px;color:var(--dim);
}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .container{max-width:1140px}
  .command-search{width:200px}
  .command-search:focus-within{width:260px}
}
@media (max-width:1024px){
  .main-nav{display:none}
  .command-search{display:none}
  .nav-toggle{display:inline-flex}
  .article-layout{grid-template-columns:1fr;gap:36px}
  .article-body{max-width:100%}
  .sidebar{flex-direction:row;flex-wrap:wrap}
  .side-card{flex:1 1 300px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .related{padding:56px 0 72px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .article-hero{padding:20px 0 26px}
  .article-hero h1{min-height:0;margin-top:14px}
  .article-layout{padding:36px 0 0}
  .article-body h2{margin-top:36px}
  .sidebar{flex-direction:column}
  .rel-grid{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .breadcrumb .current{max-width:200px}
  .site-footer{padding-top:48px}
}
@media (max-width:520px){
  .brand-text{font-size:15px}
  .header-actions .icon-btn{display:none}
  .btn{width:100%}
  .article-foot .btn{width:100%}
  .meta-row{gap:6px 12px;font-size:12.5px}
  .meta-sep{display:none}
  .article-hero h1{font-size:26px;line-height:1.32}
  .command-search{width:100%}
}

/* roulang page: category2 */
:root{
  --bg:#070C16;
  --panel:#0E1626;
  --panel-2:#101A2C;
  --glass:rgba(255,255,255,0.06);
  --glass-soft:rgba(255,255,255,0.03);
  --line:rgba(255,255,255,0.10);
  --line-soft:rgba(255,255,255,0.06);
  --primary:#2FE3C4;
  --primary-dim:rgba(47,227,196,0.12);
  --primary-line:rgba(47,227,196,0.30);
  --amber:#FFB74D;
  --warn:#FF6B5A;
  --text:#E8EEF7;
  --muted:#93A3B8;
  --dim:#55637A;
  --r-card:18px;
  --r-btn:12px;
  --r-img:14px;
  --r-badge:6px;
  --shadow-card:0 20px 60px rgba(0,0,0,0.45);
  --shadow-soft:0 10px 30px rgba(0,0,0,0.30);
  --glow:0 8px 28px rgba(47,227,196,0.35);
  --container:1200px;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.7;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(620px 420px at 10% -10%, rgba(47,227,196,0.11), transparent 70%),
    radial-gradient(720px 520px at 96% 110%, rgba(255,183,77,0.09), transparent 70%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  opacity:.55;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size:24px 24px;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

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

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(7,12,22,0.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line-soft);
  transition:background .2s ease-out,border-color .2s ease-out;
}
.site-header.scrolled{
  background:rgba(7,12,22,0.92);
  border-bottom-color:var(--line);
}
.header-inner{
  min-height:64px;
  display:flex;
  align-items:center;
  gap:28px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:32px;
  height:32px;
  border-radius:10px;
  background:linear-gradient(150deg,var(--primary),#1BA58F 70%);
  position:relative;
  box-shadow:0 6px 18px rgba(47,227,196,0.28);
}
.brand-mark::before{
  content:"";
  position:absolute;
  left:8px;
  right:8px;
  top:8px;
  bottom:8px;
  border:2px solid rgba(4,18,15,0.85);
  border-bottom-width:2px;
  border-radius:3px 3px 0 0;
  border-bottom:none;
}
.brand-mark::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:8px;
  width:2px;
  height:8px;
  background:rgba(4,18,15,0.85);
  transform:translateX(-50%);
  border-radius:1px;
}
.brand-text{
  font-size:16px;
  font-weight:700;
  letter-spacing:-0.01em;
  white-space:nowrap;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:6px;
}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--muted);
  padding:6px 0;
  transition:color .18s ease-out;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);}
.nav-link.active{color:var(--text);font-weight:500;}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-2px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
}
.search-wrap{position:relative;}
.command-search{
  display:flex;
  align-items:center;
  gap:8px;
  height:38px;
  width:230px;
  padding:0 12px;
  border-radius:var(--r-btn);
  background:rgba(255,255,255,0.05);
  border:1px solid var(--line);
  transition:width .2s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.command-search:focus-within{
  width:300px;
  border-color:var(--primary-line);
  box-shadow:0 0 0 3px rgba(47,227,196,0.10);
}
.command-search i{color:var(--dim);font-size:13px;}
.command-search input{
  flex:1;
  min-width:0;
  background:transparent;
  border:0;
  outline:none;
  color:var(--text);
  font-size:14px;
  font-family:inherit;
}
.command-search input::placeholder{color:var(--dim);}
.command-search kbd{
  font-family:var(--mono);
  font-size:11px;
  color:var(--muted);
  background:rgba(255,255,255,0.07);
  border:1px solid var(--line);
  border-radius:5px;
  padding:1px 5px;
  line-height:1.5;
}
.search-panel{
  position:absolute;
  top:calc(100% + 10px);
  right:0;
  width:300px;
  padding:8px;
  border-radius:14px;
  background:rgba(14,22,38,0.96);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px);
  z-index:70;
}
.search-panel[hidden]{display:none;}
.sp-item{
  display:flex;
  align-items:center;
  gap:10px;
  padding:9px 10px;
  border-radius:9px;
  font-size:14px;
  color:var(--muted);
  transition:background .16s ease-out,color .16s ease-out;
}
.sp-item:hover{background:rgba(47,227,196,0.10);color:var(--text);}
.sp-item i{width:16px;text-align:center;color:var(--primary);font-size:12px;}
.sp-item em{
  margin-left:auto;
  font-style:normal;
  font-size:11px;
  color:var(--dim);
  font-family:var(--mono);
}
.icon-btn{
  width:38px;
  height:38px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  background:rgba(255,255,255,0.05);
  border:1px solid var(--line);
  color:var(--muted);
  cursor:pointer;
  transition:all .18s ease-out;
}
.icon-btn:hover{color:var(--text);border-color:var(--primary-line);}
.nav-toggle{
  display:none;
  width:38px;
  height:38px;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  background:rgba(255,255,255,0.05);
  border:1px solid var(--line);
  color:var(--text);
  cursor:pointer;
  transition:all .18s ease-out;
}
.nav-toggle:hover{border-color:var(--primary-line);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  cursor:pointer;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,border-color .18s ease-out,filter .18s ease-out;
}
.btn-primary{
  background:var(--primary);
  color:#04120F;
  box-shadow:var(--glow);
}
.btn-primary:hover{
  transform:translateY(-1px);
  filter:brightness(1.08);
  box-shadow:0 8px 36px rgba(47,227,196,0.50);
}
.btn-primary:active{transform:none;filter:brightness(0.98);}
.btn-ghost{
  background:var(--glass);
  border-color:var(--line);
  color:var(--text);
}
.btn-ghost:hover{border-color:rgba(47,227,196,0.40);background:rgba(255,255,255,0.09);}
.btn-ghost:active{background:rgba(255,255,255,0.05);}
.btn-sm{height:36px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
.link-ghost{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--primary);
  font-weight:600;
  font-size:15px;
  transition:gap .18s ease-out,color .18s ease-out;
}
.link-ghost:hover{gap:10px;color:#5FF3D8;}

/* ---------- 主区域 ---------- */
main{position:relative;z-index:1;}
main::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,227,196,0.45),transparent);
}
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:720px;margin:0 auto 48px;text-align:center;}
.section-head h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;letter-spacing:-0.01em;}
.section-head p{margin-top:14px;color:var(--muted);font-size:15px;}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding-top:28px;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--dim);}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:var(--dim);}
.breadcrumb a{color:var(--muted);transition:color .18s ease-out;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb [aria-current="page"]{color:var(--text);}

/* ---------- 分类页2 居中标题区 ---------- */
.cat2-hero{
  padding:48px 0 24px;
  text-align:center;
  position:relative;
}
.cat2-hero .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 12px;
  margin-bottom:22px;
  border-radius:999px;
  background:var(--primary-dim);
  border:1px solid rgba(47,227,196,0.22);
  color:var(--primary);
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
}
.cat2-hero .eyebrow::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 0 4px rgba(47,227,196,0.18);
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{opacity:1;transform:scale(1);}
  50%{opacity:.55;transform:scale(.85);}
}
.cat2-hero h1{
  max-width:900px;
  margin:0 auto;
  font-size:clamp(28px,4vw,46px);
  line-height:1.28;
  font-weight:700;
  letter-spacing:-0.01em;
}
.cat2-hero h1 em{
  font-style:normal;
  color:var(--primary);
}
.cat2-hero .lede{
  max-width:680px;
  margin:20px auto 0;
  color:var(--muted);
  font-size:16px;
  line-height:1.8;
}
.hero-chips{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:10px;
  margin-top:28px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  height:32px;
  padding:0 14px;
  border-radius:999px;
  background:var(--glass-soft);
  border:1px solid var(--line);
  color:var(--muted);
  font-size:13px;
  transition:border-color .18s ease-out,color .18s ease-out;
}
.chip:hover{border-color:var(--primary-line);color:var(--text);}
.chip i{color:var(--primary);font-size:12px;}

/* ---------- 左右分区 ---------- */
.split{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:48px;
  align-items:start;
}
.split-left h2{
  font-size:clamp(22px,2.2vw,28px);
  line-height:1.35;
  font-weight:700;
  letter-spacing:-0.01em;
  margin-bottom:20px;
}
.split-left p{
  color:var(--muted);
  font-size:16px;
  line-height:1.85;
  margin-bottom:18px;
}
.split-left p strong{color:var(--text);font-weight:600;}
.split-figure{
  margin-top:28px;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
}
.split-figure img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform .5s ease-out;
}
.split-figure:hover img{transform:scale(1.03);}
.split-figure figcaption{
  padding:10px 14px;
  font-size:13px;
  color:var(--dim);
  background:rgba(255,255,255,0.02);
}

.step-card{
  border-radius:var(--r-card);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  padding:28px;
  position:relative;
  overflow:hidden;
}
.step-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,0.22),transparent);
}
.step-card-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-bottom:20px;
}
.step-card-head h2{font-size:20px;font-weight:700;}
.step-card-head span{
  font-family:var(--mono);
  font-size:12px;
  color:var(--amber);
  background:rgba(255,183,77,0.12);
  border-radius:var(--r-badge);
  padding:3px 8px;
}
.num-list{display:grid;gap:12px;}
.num-list li{
  display:flex;
  gap:16px;
  padding:18px;
  border-radius:14px;
  background:var(--glass-soft);
  border:1px solid var(--line-soft);
  transition:border-color .18s ease-out,background .18s ease-out,transform .18s ease-out;
}
.num-list li:hover{
  border-color:var(--primary-line);
  background:rgba(47,227,196,0.05);
  transform:translateY(-2px);
}
.num-list .num{
  flex-shrink:0;
  font-family:var(--mono);
  font-size:12px;
  color:var(--primary);
  background:var(--primary-dim);
  border-radius:999px;
  padding:3px 9px;
  height:fit-content;
  letter-spacing:.04em;
}
.num-list h3{font-size:16px;font-weight:600;margin-bottom:6px;}
.num-list p{font-size:14px;color:var(--muted);line-height:1.7;}

/* ---------- 横向条目卡 ---------- */
.h-cards{display:grid;gap:16px;}
.h-card{
  display:flex;
  align-items:center;
  gap:20px;
  padding:22px 24px;
  border-radius:var(--r-card);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.h-card:hover{
  transform:translateY(-3px);
  border-color:var(--primary-line);
  box-shadow:var(--shadow-card);
}
.h-card-icon{
  flex-shrink:0;
  width:46px;height:46px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  background:var(--primary-dim);
  border:1px solid rgba(47,227,196,0.20);
  color:var(--primary);
  font-size:17px;
  transition:background .18s ease-out;
}
.h-card:hover .h-card-icon{background:rgba(47,227,196,0.20);}
.h-card-body{flex:1;min-width:0;}
.h-card-body h3{font-size:17px;font-weight:600;margin-bottom:6px;transition:color .18s ease-out;}
.h-card:hover .h-card-body h3{color:var(--primary);}
.h-card-body p{font-size:14px;color:var(--muted);line-height:1.7;}
.h-card-go{
  flex-shrink:0;
  width:34px;height:34px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--muted);
  font-size:12px;
  transition:all .18s ease-out;
}
.h-card:hover .h-card-go{
  border-color:var(--primary);
  color:var(--primary);
  transform:translateX(3px);
}

/* ---------- 关键提示条 ---------- */
.notice-bar{
  display:flex;
  gap:20px;
  align-items:flex-start;
  padding:26px 28px;
  border-radius:var(--r-card);
  background:linear-gradient(90deg,rgba(47,227,196,0.08),rgba(255,255,255,0.02) 60%);
  border:1px solid var(--line);
  border-left:3px solid var(--primary);
}
.notice-bar i{
  color:var(--primary);
  font-size:20px;
  margin-top:3px;
}
.notice-bar h2{font-size:19px;font-weight:700;margin-bottom:8px;}
.notice-bar p{font-size:15px;color:var(--muted);line-height:1.8;}
.notice-bar p + p{margin-top:8px;}
.notice-bar strong{color:var(--text);font-weight:600;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto;display:grid;gap:12px;}
.faq-item{
  border:1px solid var(--line);
  border-left:3px solid transparent;
  border-radius:14px;
  background:var(--glass-soft);
  padding:0 22px;
  transition:border-color .2s ease-out,background .2s ease-out;
}
.faq-item:hover{background:rgba(255,255,255,0.05);}
.faq-item[open]{
  border-left-color:var(--primary);
  background:rgba(47,227,196,0.04);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 0;
  font-size:17px;
  font-weight:600;
  line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  flex-shrink:0;
  width:28px;height:28px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--primary);
  font-size:16px;
  font-weight:400;
  line-height:1;
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.faq-item[open] summary::after{
  content:"−";
  border-color:var(--primary-line);
}
.faq-body{
  padding:0 0 20px;
  color:var(--muted);
  font-size:15px;
  line-height:1.85;
  max-width:660px;
}

/* ---------- CTA 通栏 ---------- */
.cta-banner{
  position:relative;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:48px;
  border-radius:24px;
  background:linear-gradient(120deg,rgba(47,227,196,0.10),rgba(255,183,77,0.06));
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.cta-banner::before{
  content:"";
  position:absolute;
  top:-70%;left:-12%;
  width:38%;height:240%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,0.07),transparent);
  transform:rotate(45deg);
  pointer-events:none;
}
.cta-left{position:relative;z-index:1;max-width:620px;}
.cta-left h2{
  font-size:clamp(22px,2.6vw,30px);
  font-weight:700;
  letter-spacing:-0.01em;
  line-height:1.35;
}
.cta-left p{margin-top:12px;color:var(--muted);font-size:15px;line-height:1.8;}
.cta-right{
  position:relative;
  z-index:1;
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:12px;
  flex-shrink:0;
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:96px;
  padding:64px 0 0;
  border-top:1px solid var(--line-soft);
  background:rgba(255,255,255,0.015);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.1fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{
  color:var(--muted);
  font-size:14px;
  line-height:1.8;
  max-width:320px;
}
.footer-col h4{
  position:relative;
  font-size:14px;
  font-weight:600;
  color:var(--text);
  padding-bottom:12px;
  margin-bottom:16px;
}
.footer-col h4::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:22px;height:3px;
  border-radius:2px;
  background:var(--primary);
}
.footer-col ul{display:grid;gap:10px;}
.footer-col li a,.footer-col li span{
  font-size:14px;
  color:var(--muted);
  transition:color .18s ease-out;
}
.footer-col li a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:20px 0 28px;
  border-top:1px solid var(--line-soft);
  font-size:13px;
  color:var(--dim);
}

/* ---------- 移动端抽屉 ---------- */
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:90;
  display:none;
  flex-direction:column;
  gap:6px;
  padding:84px 24px 32px;
  background:rgba(7,12,22,0.95);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  overflow-y:auto;
}
.mobile-drawer.open{display:flex;}
.mobile-drawer .m-search{
  display:flex;
  align-items:center;
  gap:10px;
  height:44px;
  padding:0 14px;
  border-radius:var(--r-btn);
  background:rgba(255,255,255,0.06);
  border:1px solid var(--line);
  margin-bottom:12px;
}
.mobile-drawer .m-search i{color:var(--dim);font-size:14px;}
.mobile-drawer .m-search input{
  flex:1;background:transparent;border:0;outline:none;
  color:var(--text);font-size:15px;font-family:inherit;
}
.mobile-drawer .m-search input::placeholder{color:var(--dim);}
.mobile-drawer .m-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 4px;
  font-size:16px;
  color:var(--muted);
  border-bottom:1px solid var(--line-soft);
  transition:color .18s ease-out;
}
.mobile-drawer .m-link:hover,.mobile-drawer .m-link.active{color:var(--primary);}
.mobile-drawer .m-cta{margin-top:24px;}
.mobile-drawer .m-cta .btn{width:100%;}
.drawer-close{
  position:absolute;
  top:20px;right:24px;
  width:38px;height:38px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  background:rgba(255,255,255,0.06);
  border:1px solid var(--line);
  color:var(--text);
  cursor:pointer;
}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .container{max-width:1140px;}
}
@media (max-width:1024px){
  .main-nav{gap:20px;}
  .command-search{width:190px;}
  .command-search:focus-within{width:230px;}
  .split{grid-template-columns:1fr;gap:36px;}
  .section{padding:72px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .main-nav,.search-wrap,.icon-btn{display:none;}
  .nav-toggle{display:flex;}
  .header-actions{gap:8px;}
  .header-inner{gap:16px;}
  .cat2-hero{padding:32px 0 16px;}
  .cat2-hero .lede{font-size:15px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .cta-banner{flex-direction:column;align-items:flex-start;padding:32px 24px;gap:24px;}
  .cta-right{align-items:stretch;width:100%;}
  .cta-right .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .notice-bar{padding:22px;gap:14px;}
  .h-card{padding:18px;gap:14px;}
  .step-card{padding:20px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .brand-text{font-size:15px;}
  .h-card{flex-wrap:wrap;}
  .h-card-go{display:none;}
  .h-card-icon{width:40px;height:40px;font-size:15px;}
  .num-list li{padding:14px;gap:12px;}
  .faq-item{padding:0 16px;}
  .faq-item summary{font-size:15px;padding:15px 0;}
  .btn{width:100%;}
  .hero-chips{gap:8px;}
  .chip{font-size:12px;padding:0 11px;}
}