/* roulang page: index */
:root{
  --bg-0:#060A14;
  --bg-1:#0B1222;
  --bg-2:#111A2E;
  --primary:#2FB8FF;
  --primary-deep:#0E6FB8;
  --accent:#F5A623;
  --mint:#6FE3C4;
  --text-1:#EAF1FF;
  --text-2:#A7B4CC;
  --text-3:#6C7A93;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --radius:18px;
  --radius-sm:14px;
  --radius-xs:12px;
  --shadow:0 20px 40px rgba(0,0,0,.35);
  --glow:0 8px 28px rgba(47,184,255,.35);
  --glow-strong:0 12px 40px rgba(47,184,255,.5);
  --container:1200px;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-2);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:64px 64px,64px 64px;
  opacity:.9;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:radial-gradient(circle at 20% 8%,rgba(47,184,255,.10),transparent 46%),radial-gradient(circle at 82% 30%,rgba(245,166,35,.06),transparent 42%);
}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700;line-height:1.25;letter-spacing:.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:#7FD4FF;}
img{max-width:100%;display:block;border:0;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
::selection{background:rgba(47,184,255,.3);color:#fff;}
main{position:relative;z-index:1;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;}
.wide{max-width:1280px;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  height:64px;
  background:rgba(6,10,20,.72);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.site-header.scrolled{
  background:rgba(6,10,20,.92);
  border-bottom-color:rgba(47,184,255,.22);
  box-shadow:0 12px 32px rgba(0,0,0,.42);
}
.nav-wrap{
  height:64px;
  display:flex;
  align-items:center;
  gap:22px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--text-1);
}
.brand:hover{color:var(--text-1);}
.brand-mark{width:34px;height:34px;flex:0 0 auto;}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-name{font-size:18px;font-weight:700;letter-spacing:-.4px;color:var(--text-1);}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.14em;font-family:var(--font-mono);}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:12px;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 13px;
  border-radius:10px;
  font-size:14px;
  font-weight:500;
  color:var(--text-2);
  transition:color .18s ease-out,background .18s ease-out;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05);}
.nav-link.active{color:var(--text-1);}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--primary),rgba(47,184,255,0));
  box-shadow:0 0 10px rgba(47,184,255,.7);
}
.nav-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.search-box{
  display:flex;
  align-items:center;
  gap:8px;
  width:262px;
  height:38px;
  padding:0 10px 0 12px;
  border-radius:12px;
  background:linear-gradient(160deg,rgba(255,255,255,.075),rgba(255,255,255,.02));
  border:1px solid var(--line);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.search-box:focus-within{
  border-color:rgba(47,184,255,.55);
  box-shadow:0 0 0 3px rgba(47,184,255,.12);
}
.search-box svg{width:16px;height:16px;flex:0 0 auto;stroke:var(--text-3);}
.search-box input{
  flex:1 1 auto;
  min-width:0;
  height:100%;
  border:0;
  background:transparent;
  color:var(--text-1);
  font-size:13.5px;
  outline:none;
}
.search-box input::placeholder{color:var(--text-3);}
.kbd{
  font-family:var(--font-mono);
  font-size:11px;
  color:var(--text-3);
  border:1px solid var(--line);
  border-radius:6px;
  padding:1px 6px;
  background:rgba(255,255,255,.04);
  flex:0 0 auto;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:12px;
  border:0;
  font-size:15px;
  font-weight:500;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.btn-glow{
  background:linear-gradient(135deg,#2FB8FF,#0E6FB8);
  color:#04121F;
  box-shadow:var(--glow);
}
.btn-glow:hover{transform:translateY(-2px);box-shadow:var(--glow-strong);color:#04121F;}
.btn-glow:active{transform:translateY(0);box-shadow:0 1px 8px rgba(47,184,255,.4);}
.btn-ghost{
  background:transparent;
  color:var(--primary);
  border:1px solid rgba(47,184,255,.5);
}
.btn-ghost:hover{background:rgba(47,184,255,.12);color:#8CDAFF;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-accent{
  background:linear-gradient(135deg,#F5A623,#C77B08);
  color:#1B1102;
  box-shadow:0 8px 26px rgba(245,166,35,.28);
}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 12px 34px rgba(245,166,35,.4);color:#1B1102;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px;}
.nav-actions .btn{height:38px;padding:0 18px;font-size:14px;}
.burger{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  background:transparent;
  border:1px solid var(--line);
  border-radius:12px;
  cursor:pointer;
}
.burger span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;position:relative;}
.burger span::before,.burger span::after{
  content:"";
  position:absolute;left:0;width:18px;height:2px;background:var(--text-1);border-radius:2px;
}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

.drawer{
  position:fixed;
  inset:64px 0 0 0;
  z-index:55;
  background:rgba(6,10,20,.97);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  padding:20px 24px 40px;
  display:none;
  flex-direction:column;
  gap:6px;
  overflow-y:auto;
  border-top:1px solid var(--line);
}
.drawer.open{display:flex;}
.drawer .drawer-link{
  display:flex;
  align-items:center;
  min-height:52px;
  padding:0 14px;
  border-radius:12px;
  color:var(--text-1);
  font-size:16px;
  font-weight:500;
  border:1px solid transparent;
}
.drawer .drawer-link:hover,.drawer .drawer-link.active{
  background:rgba(47,184,255,.10);
  border-color:rgba(47,184,255,.30);
  color:var(--text-1);
}
.drawer .search-box{width:100%;height:44px;margin-bottom:10px;}
.drawer .btn{width:100%;margin-top:14px;}

/* ============ 通用组件 ============ */
.glass{
  background:linear-gradient(160deg,rgba(255,255,255,.075),rgba(255,255,255,.02));
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow);
  transition:border-color .18s ease-out,transform .18s ease-out,background .18s ease-out,box-shadow .18s ease-out;
}
.glass:hover{
  border-color:rgba(47,184,255,.45);
  transform:translateY(-2px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.09),0 24px 48px rgba(0,0,0,.4);
}
.section{
  position:relative;
  padding:96px 0;
  border-top:1px solid var(--line-soft);
}
.section.alt{background:var(--bg-1);}
.section.tight{padding-top:72px;}
.sec-head{max-width:780px;margin-bottom:40px;}
.sec-num{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--accent);
  margin-bottom:10px;
}
.sec-title{font-size:32px;}
.sec-line{
  width:48px;
  height:2px;
  margin:14px 0 16px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--primary),rgba(47,184,255,0));
}
.sec-desc{
  font-size:15.5px;
  color:var(--text-2);
  line-height:1.75;
  max-width:68ch;
}
.hl{
  background:linear-gradient(transparent 62%,rgba(245,166,35,.30) 62%);
  padding:0 2px;
  color:var(--text-1);
  font-weight:700;
}
.chip{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 10px;
  border-radius:8px;
  font-size:12.5px;
  font-weight:500;
  color:var(--text-2);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  white-space:nowrap;
}
.chip.on{
  color:#9BDCFF;
  border-color:rgba(47,184,255,.55);
  background:rgba(47,184,255,.12);
  box-shadow:0 0 14px rgba(47,184,255,.25) inset;
}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:64px 0 76px;
  overflow:hidden;
  background:
    radial-gradient(900px 420px at 12% 0%,rgba(47,184,255,.16),transparent 62%),
    radial-gradient(760px 400px at 88% 16%,rgba(245,166,35,.10),transparent 60%),
    var(--bg-0);
  border-bottom:1px solid var(--line-soft);
}
.hero-bg{
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:56px 56px,56px 56px;
  opacity:.45;
  pointer-events:none;
}
.hero-inner{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:48px;
  align-items:center;
  min-height:min(78vh,640px);
}
.hero-copy{position:relative;z-index:2;}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:30px;
  padding:0 12px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:500;
  color:#9BDCFF;
  background:rgba(47,184,255,.10);
  border:1px solid rgba(47,184,255,.32);
  margin-bottom:18px;
}
.hero-badge i{
  width:6px;height:6px;border-radius:50%;
  background:var(--mint);
  box-shadow:0 0 10px var(--mint);
  display:block;
}
.hero-title{
  font-size:48px;
  letter-spacing:-.5px;
  margin-bottom:16px;
}
.hero-sub{
  font-size:17px;
  color:var(--text-1);
  font-weight:500;
  line-height:1.6;
  margin-bottom:14px;
  max-width:34ch;
}
.hero-intro{
  font-size:15.5px;
  color:var(--text-2);
  max-width:60ch;
  margin-bottom:26px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.trust-chips{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.trust-chips li{
  display:inline-flex;
  align-items:center;
  gap:7px;
  height:30px;
  padding:0 12px;
  border-radius:9px;
  font-size:12.5px;
  color:var(--text-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-soft);
}
.trust-chips li::before{
  content:"";
  width:5px;height:5px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 8px var(--primary);
}
.hero-visual{position:relative;z-index:2;}
.hero-figure{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  aspect-ratio:16/11;
  background:var(--bg-2);
}
.hero-figure img{
  width:100%;height:100%;object-fit:cover;
  filter:saturate(.9);
}
.hero-figure::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,20,.80),rgba(6,10,20,.86)),repeating-linear-gradient(0deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:auto,100% 26px;
  pointer-events:none;
}
.float-card{
  position:absolute;
  right:-8px;
  bottom:-24px;
  display:flex;
  align-items:center;
  gap:18px;
  padding:16px 20px;
  border-radius:var(--radius-sm);
  z-index:3;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 20px 44px rgba(0,0,0,.5);
}
.float-card:hover{transform:translateY(-2px);}
.float-item{display:flex;flex-direction:column;gap:2px;}
.float-num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:24px;
  font-weight:700;
  color:var(--text-1);
  line-height:1.1;
}
.float-num em{font-size:12px;font-style:normal;color:var(--text-3);margin-left:3px;}
.float-label{font-size:12px;color:var(--text-3);}
.float-divider{width:1px;height:34px;background:var(--line);}

/* ============ 指标看板 ============ */
.metric-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.metric{
  position:relative;
  padding:24px;
  border-radius:var(--radius);
}
.metric-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;}
.metric-num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:40px;
  font-weight:700;
  color:var(--text-1);
  line-height:1.05;
  letter-spacing:-1px;
}
.metric-unit{font-size:14px;color:var(--text-3);margin-left:4px;font-family:var(--font-sans);}
.metric-label{margin-top:10px;font-size:15px;font-weight:500;color:var(--text-1);}
.metric-note{margin-top:6px;font-size:12.5px;color:var(--text-3);line-height:1.6;}
.trend{
  display:inline-flex;
  align-items:center;
  gap:4px;
  height:24px;
  padding:0 8px;
  border-radius:7px;
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--accent);
  background:rgba(245,166,35,.10);
  border:1px solid rgba(245,166,35,.28);
  flex:0 0 auto;
}
.trend.down{color:var(--mint);background:rgba(111,227,196,.10);border-color:rgba(111,227,196,.28);}

/* ============ 频道矩阵 ============ */
.matrix{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.card{
  display:flex;
  flex-direction:column;
  padding:24px;
  border-radius:var(--radius);
}
.matrix .main-card{
  grid-column:span 2;
  grid-row:span 2;
  position:relative;
  overflow:hidden;
  background:linear-gradient(160deg,rgba(47,184,255,.12),rgba(255,255,255,.02));
  border-color:rgba(47,184,255,.30);
}
.matrix .main-card::before{
  content:"";
  position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,184,255,.9),transparent);
}
.card-media{
  width:100%;
  aspect-ratio:16/10;
  border-radius:var(--radius-xs);
  overflow:hidden;
  background:linear-gradient(135deg,var(--bg-2),var(--bg-1));
  border:1px solid var(--line-soft);
  margin-bottom:18px;
}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .32s ease-out;}
.card:hover .card-media img{transform:scale(1.03);}
.card-icon{
  width:40px;height:40px;
  border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(47,184,255,.12);
  border:1px solid rgba(47,184,255,.28);
  margin-bottom:14px;
}
.card-icon svg{width:20px;height:20px;stroke:var(--primary);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.card-title{font-size:20px;margin-bottom:8px;}
.card-text{font-size:14.5px;color:var(--text-2);margin-bottom:18px;}
.card .chip-row{margin-top:auto;}

/* ============ 场景专题 ============ */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:16px 24px;
}
.scene-item{
  display:flex;
  align-items:flex-start;
  gap:14px;
  padding:20px 22px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.015));
  transition:border-color .18s ease-out,transform .18s ease-out,background .18s ease-out;
}
.scene-item:hover{border-color:rgba(47,184,255,.45);transform:translateY(-2px);}
.scene-body{flex:1 1 auto;}
.scene-name{font-size:16.5px;font-weight:700;color:var(--text-1);margin-bottom:6px;}
.scene-text{font-size:14px;color:var(--text-2);}
.scene-arrow{
  flex:0 0 auto;
  width:28px;height:28px;
  border-radius:9px;
  border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);
  font-size:14px;
  margin-top:2px;
}
.scene-item:hover .scene-arrow{border-color:rgba(47,184,255,.55);background:rgba(47,184,255,.10);}

/* ============ 对比 ============ */
.compare{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.compare-col{padding:26px;border-radius:var(--radius);}
.compare-head{
  display:flex;align-items:center;gap:10px;
  font-size:17px;font-weight:700;color:var(--text-1);
  padding-bottom:16px;
  border-bottom:1px dashed var(--line);
  margin-bottom:14px;
}
.compare-head .dot{width:8px;height:8px;border-radius:50%;display:block;}
.compare-col.before .dot{background:var(--text-3);}
.compare-col.after{
  border-color:rgba(47,184,255,.32);
  background:linear-gradient(160deg,rgba(47,184,255,.10),rgba(255,255,255,.02));
}
.compare-col.after .dot{background:var(--mint);box-shadow:0 0 10px var(--mint);}
.compare-row{
  display:flex;
  gap:12px;
  padding:12px 0;
  font-size:14.5px;
  color:var(--text-2);
  border-bottom:1px solid var(--line-soft);
}
.compare-row:last-child{border-bottom:0;}
.compare-row .tag{
  flex:0 0 auto;
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--text-3);
  padding-top:3px;
  width:34px;
}
.compare-col.after .compare-row .tag{color:var(--accent);}
.compare-col.after .compare-row strong{color:var(--text-1);}

/* ============ 步骤 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  position:relative;
}
.steps::before{
  content:"";
  position:absolute;
  left:6%;right:6%;top:26px;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,184,255,.55),rgba(47,184,255,.55),transparent);
  box-shadow:0 0 12px rgba(47,184,255,.4);
}
.step{position:relative;padding-top:0;}
.step-num{
  position:relative;
  z-index:2;
  width:52px;height:52px;
  border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);
  font-size:16px;
  font-weight:700;
  color:#04121F;
  background:linear-gradient(135deg,#2FB8FF,#0E6FB8);
  box-shadow:var(--glow);
  margin-bottom:18px;
}
.step-title{font-size:17.5px;margin-bottom:8px;}
.step-text{font-size:14px;color:var(--text-2);}

/* ============ 里程碑 ============ */
.milestone-wrap{
  position:relative;
  border-radius:var(--radius);
  padding:34px 30px;
  background:linear-gradient(160deg,rgba(255,255,255,.055),rgba(255,255,255,.015));
  border:1px solid var(--line);
  overflow:hidden;
}
.milestone-wrap::after{
  content:"";
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-4.jpg");
  background-size:cover;
  background-position:center;
  opacity:.09;
  pointer-events:none;
}
.milestone-wrap > *{position:relative;z-index:2;}
.timeline{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:18px;
}
.tl-item{position:relative;padding-top:26px;}
.tl-item::before{
  content:"";
  position:absolute;top:6px;left:0;right:0;
  height:1px;
  background:rgba(255,255,255,.14);
}
.tl-dot{
  position:absolute;
  top:0;
  left:0;
  width:13px;height:13px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 14px rgba(47,184,255,.85);
  border:2px solid rgba(6,10,20,.9);
}
.tl-year{
  font-family:var(--font-mono);
  font-size:12.5px;
  color:var(--accent);
  letter-spacing:.06em;
  margin-bottom:8px;
}
.tl-title{font-size:15.5px;color:var(--text-1);font-weight:700;margin-bottom:6px;}
.tl-text{font-size:13.5px;color:var(--text-2);}

/* ============ 口碑 ============ */
.quote-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.quote-card{
  position:relative;
  padding:26px 24px 24px;
  border-radius:var(--radius);
  overflow:visible;
}
.quote-card::before{
  content:"";
  position:absolute;
  top:0;right:0;
  width:0;height:0;
  border-style:solid;
  border-width:0 26px 26px 0;
  border-color:transparent rgba(245,166,35,.35) transparent transparent;
  border-top-right-radius:var(--radius);
}
.quote-card:nth-child(2){transform:translateY(18px);}
.quote-card:nth-child(2):hover{transform:translateY(16px);}
.quote-head{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.quote-avatar{
  width:46px;height:46px;border-radius:50%;
  overflow:hidden;flex:0 0 auto;
  border:1px solid var(--line);
  background:var(--bg-2);
}
.quote-avatar img{width:100%;height:100%;object-fit:cover;}
.quote-name{font-size:15px;font-weight:700;color:var(--text-1);}
.quote-role{font-size:12.5px;color:var(--text-3);}
.quote-text{font-size:14.5px;color:var(--text-2);}

/* ============ 资讯 ============ */
.news-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:24px;
}
.news-main{padding:0;overflow:hidden;border-radius:var(--radius);}
.news-main-media{
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--bg-2);
}
.news-main-media img{width:100%;height:100%;object-fit:cover;transition:transform .32s ease-out;}
.news-main:hover .news-main-media img{transform:scale(1.03);}
.news-main-body{padding:22px 24px 24px;}
.news-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--text-3);font-family:var(--font-mono);margin-bottom:10px;}
.news-main-title{font-size:21px;margin-bottom:10px;}
.news-main-text{font-size:14.5px;color:var(--text-2);}
.news-side{display:flex;flex-direction:column;gap:14px;}
.news-item{
  display:flex;
  align-items:center;
  gap:16px;
  padding:18px 20px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.055),rgba(255,255,255,.015));
  transition:border-color .18s ease-out,transform .18s ease-out;
}
.news-item:hover{border-color:rgba(47,184,255,.45);transform:translateY(-2px);}
.news-item .date{
  font-family:var(--font-mono);
  font-size:12.5px;
  color:var(--text-3);
  flex:0 0 auto;
}
.news-item .tag{
  flex:0 0 auto;
  font-size:12px;
  color:#9BDCFF;
  border:1px solid rgba(47,184,255,.32);
  background:rgba(47,184,255,.10);
  border-radius:7px;
  padding:1px 8px;
}
.news-item .title{font-size:14.5px;color:var(--text-1);font-weight:500;}

/* ============ 专题索引 ============ */
.topic-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.topic-card{
  padding:24px;
  border-radius:var(--radius);
  border-left:2px solid rgba(47,184,255,.55);
}
.topic-title{font-size:17px;margin-bottom:6px;}
.topic-desc{font-size:13.5px;color:var(--text-3);margin-bottom:14px;}
.topic-list li{
  display:flex;
  gap:10px;
  font-size:13.5px;
  color:var(--text-2);
  padding:7px 0;
  border-bottom:1px dashed var(--line-soft);
}
.topic-list li:last-child{border-bottom:0;}
.topic-list .idx{
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--accent);
  flex:0 0 auto;
}

/* ============ 平台保障 ============ */
.guard-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.guard-card{
  padding:24px;
  border-radius:var(--radius);
  border:1px solid rgba(47,184,255,.22);
  background:linear-gradient(160deg,rgba(47,184,255,.075),rgba(255,255,255,.015));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow);
  transition:border-color .18s ease-out,transform .18s ease-out;
}
.guard-card:hover{border-color:rgba(47,184,255,.5);transform:translateY(-2px);}
.guard-icon{
  width:38px;height:38px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(111,227,196,.10);
  border:1px solid rgba(111,227,196,.30);
  margin-bottom:14px;
}
.guard-icon svg{width:19px;height:19px;stroke:var(--mint);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.guard-title{font-size:17px;margin-bottom:8px;}
.guard-text{font-size:14px;color:var(--text-2);}
.promise-bar{
  margin-top:24px;
  padding:16px 22px;
  border-radius:var(--radius-xs);
  border:1px solid var(--line);
  font-size:14px;
  color:var(--text-2);
  display:flex;
  flex-wrap:wrap;
  gap:8px 26px;
  align-items:center;
  background:rgba(255,255,255,.025);
}
.promise-bar span{display:inline-flex;align-items:center;gap:8px;}
.promise-bar span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px var(--primary);}

/* ============ 快速解答 ============ */
.quick-list{
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.015));
}
.quick-row{
  display:grid;
  grid-template-columns:300px 1fr;
  gap:24px;
  padding:18px 24px;
  border-bottom:1px dashed var(--line);
  align-items:start;
}
.quick-row:last-child{border-bottom:0;}
.quick-q{font-size:15px;font-weight:700;color:var(--text-1);}
.quick-a{font-size:14.5px;color:var(--text-2);}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px;}
.faq-item{
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.055),rgba(255,255,255,.015));
  overflow:hidden;
  transition:border-color .22s ease-out,background .22s ease-out,box-shadow .22s ease-out;
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  gap:14px;
  padding:18px 22px;
  font-size:16px;
  font-weight:700;
  color:var(--text-1);
  position:relative;
  min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";
  position:absolute;
  left:0;top:12px;bottom:12px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:rgba(255,255,255,.12);
  transition:background .22s ease-out,box-shadow .22s ease-out;
}
.faq-arrow{
  margin-left:auto;
  flex:0 0 auto;
  width:16px;height:16px;
  transition:transform .22s ease-out;
  stroke:var(--text-3);
  fill:none;
  stroke-width:2;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.faq-item[open]{
  border-color:rgba(245,166,35,.42);
  background:linear-gradient(160deg,rgba(245,166,35,.07),rgba(255,255,255,.015));
}
.faq-item[open] summary::before{
  background:var(--accent);
  box-shadow:0 0 12px rgba(245,166,35,.75);
}
.faq-item[open] .faq-arrow{transform:rotate(180deg);stroke:var(--accent);}
.faq-answer{
  padding:0 22px 20px 39px;
  font-size:14.5px;
  color:var(--text-2);
  max-width:62ch;
}

/* ============ 转化表单 ============ */
.cta-panel{
  display:grid;
  grid-template-columns:340px 1fr;
  gap:32px;
  padding:34px;
  border-radius:var(--radius);
  border:1px solid rgba(47,184,255,.26);
  background:linear-gradient(160deg,rgba(47,184,255,.10),rgba(255,255,255,.02));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07),var(--shadow);
}
.cta-side h2{font-size:24px;margin-bottom:12px;}
.cta-side p{font-size:14.5px;color:var(--text-2);margin-bottom:16px;}
.cta-points li{
  display:flex;gap:10px;
  font-size:14px;color:var(--text-2);
  padding:8px 0;
  border-bottom:1px dashed var(--line-soft);
}
.cta-points li:last-child{border-bottom:0;}
.cta-points li::before{
  content:"";
  flex:0 0 auto;
  width:6px;height:6px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 8px var(--primary);
  margin-top:9px;
}
.form-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13.5px;color:var(--text-2);font-weight:500;}
.field input[type="text"],
.field input[type="tel"],
.field input[type="email"],
.field select,
.field textarea{
  width:100%;
  min-height:46px;
  padding:11px 14px;
  border-radius:var(--radius-xs);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text-1);
  font-size:14.5px;
  outline:none;
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7;}
.field select{appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,#6C7A93 50%),linear-gradient(135deg,#6C7A93 50%,transparent 50%);background-position:calc(100% - 20px) 20px,calc(100% - 15px) 20px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:rgba(47,184,255,.6);
  box-shadow:0 0 0 3px rgba(47,184,255,.14);
  background:rgba(255,255,255,.06);
}
.field.error input,.field.error select,.field.error textarea{border-color:#FF6B6B;box-shadow:0 0 0 3px rgba(255,107,107,.12);}
.field .err{font-size:12.5px;color:#FF6B6B;display:none;}
.field.error .err{display:block;}
.check-row{
  grid-column:1 / -1;
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:13.5px;
  color:var(--text-2);
}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:#2FB8FF;flex:0 0 auto;}
.form-actions{
  grid-column:1 / -1;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px;
}
.form-note{
  grid-column:1 / -1;
  font-size:13px;
  color:var(--text-3);
  padding-top:6px;
  border-top:1px dashed var(--line-soft);
  display:flex;
  flex-wrap:wrap;
  gap:6px 20px;
}
.form-success{
  display:none;
  grid-column:1 / -1;
  align-items:center;
  gap:12px;
  padding:14px 16px;
  border-radius:var(--radius-xs);
  border:1px solid rgba(47,184,255,.45);
  background:rgba(47,184,255,.10);
  color:var(--text-1);
  font-size:14px;
}
.form-success.show{display:flex;}
.form-success svg{width:18px;height:18px;stroke:var(--primary);fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;flex:0 0 auto;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:0;
  border-top:1px solid var(--line);
  background:var(--bg-0);
  padding:64px 0 28px;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:32px;
  padding-bottom:40px;
  border-bottom:1px solid var(--line-soft);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{width:30px;height:30px;}
.footer-brand .name{font-size:17px;font-weight:700;color:var(--text-1);letter-spacing:-.3px;}
.footer-desc{font-size:13.5px;color:var(--text-3);margin-bottom:16px;max-width:32ch;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  padding-top:22px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom .mono{font-family:var(--font-mono);}

/* ============ 响应式 ============ */
@media (min-width:1280px){
  .container{max-width:1280px;}
}
@media (max-width:1279px){
  .container{padding:0 20px;}
  .hero-title{font-size:44px;}
  .search-box{width:220px;}
  .nav-links{margin-left:6px;}
  .nav-link{padding:0 10px;font-size:13.5px;}
}
@media (max-width:1023px){
  .section{padding:72px 0;}
  .nav-links{display:none;}
  .search-box{display:none;}
  .nav-actions .btn{display:none;}
  .burger{display:flex;}
  .hero-inner{grid-template-columns:1fr;gap:40px;min-height:auto;}
  .hero{padding:44px 0 64px;}
  .hero-title{font-size:38px;}
  .float-card{right:12px;bottom:-20px;}
  .metric-grid{grid-template-columns:repeat(2,1fr);}
  .matrix{grid-template-columns:repeat(2,1fr);}
  .matrix .main-card{grid-column:span 2;grid-row:span 1;}
  .compare{grid-template-columns:1fr;}
  .steps{grid-template-columns:repeat(2,1fr);gap:28px 24px;}
  .steps::before{display:none;}
  .timeline{grid-template-columns:repeat(3,1fr);gap:26px 18px;}
  .quote-grid{grid-template-columns:1fr;}
  .quote-card:nth-child(2){transform:none;}
  .quote-card:nth-child(2):hover{transform:translateY(-2px);}
  .news-grid{grid-template-columns:1fr;}
  .topic-grid{grid-template-columns:repeat(2,1fr);}
  .guard-grid{grid-template-columns:repeat(2,1fr);}
  .cta-panel{grid-template-columns:1fr;gap:26px;padding:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .section{padding:56px 0;}
  .sec-title{font-size:26px;}
  .hero-title{font-size:31px;}
  .hero-sub{font-size:16px;max-width:100%;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn{width:100%;}
  .metric-grid{grid-template-columns:1fr;}
  .matrix{grid-template-columns:1fr;}
  .matrix .main-card{grid-column:span 1;}
  .scene-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .timeline{grid-template-columns:1fr;gap:22px;}
  .tl-item{padding-top:22px;padding-left:24px;}
  .tl-item::before{top:0;bottom:0;left:6px;right:auto;width:1px;height:auto;}
  .tl-dot{top:4px;}
  .topic-grid{grid-template-columns:1fr;}
  .guard-grid{grid-template-columns:1fr;}
  .quick-row{grid-template-columns:1fr;gap:6px;padding:16px 18px;}
  .faq-answer{padding:0 18px 18px 18px;}
  .form-grid{grid-template-columns:1fr;}
  .cta-panel{padding:22px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .glass,.card,.metric,.guard-card,.quote-card,.topic-card{border-radius:14px;}
  .glass:hover,.card:hover,.metric:hover,.guard-card:hover,.topic-card:hover{transform:translateY(-1px);}
  .btn-glow{box-shadow:0 6px 18px rgba(47,184,255,.24);}
  .hero-figure{aspect-ratio:16/12;}
  .float-card{padding:12px 14px;gap:12px;right:8px;bottom:-18px;}
  .float-num{font-size:20px;}
}
@media (max-width:519px){
  .container{padding:0 16px;}
  .hero-title{font-size:28px;}
  .hero-badge{font-size:12px;}
  .metric-num{font-size:32px;}
  .sec-title{font-size:23px;}
  .card{padding:20px;}
  .news-main-body{padding:18px;}
  .news-main-title{font-size:18px;}
  .promise-bar{padding:14px 16px;font-size:13.5px;}
  .float-card{position:static;margin-top:14px;right:auto;bottom:auto;}
  .footer-bottom{font-size:12.5px;}
}

/* roulang page: category1 */
:root{
  --bg-0:#060A14;
  --bg-1:#0B1222;
  --bg-2:#111A2E;
  --primary:#2FB8FF;
  --primary-deep:#0E6FB8;
  --accent:#F5A623;
  --mint:#6FE3C4;
  --danger:#FF6B6B;
  --text-1:#EAF1FF;
  --text-2:#A7B4CC;
  --text-3:#6C7A93;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --radius:18px;
  --radius-sm:14px;
  --radius-xs:12px;
  --shadow:0 20px 40px rgba(0,0,0,.35);
  --glow:0 8px 28px rgba(47,184,255,.35);
  --glow-strong:0 12px 40px rgba(47,184,255,.5);
  --container:1200px;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-2);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:64px 64px,64px 64px;
  opacity:.9;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(circle at 20% 8%,rgba(47,184,255,.10),transparent 46%),
    radial-gradient(circle at 82% 30%,rgba(245,166,35,.06),transparent 42%);
}
a{color:var(--primary);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:#7FD4FF;}
img{max-width:100%;display:block;border:0;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
p{margin:0 0 16px;}
h1,h2,h3,h4{margin:0;line-height:1.25;color:var(--text-1);font-weight:700;}
ul{list-style:none;}
main{position:relative;z-index:1;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}
/* ============ 通用玻璃卡 ============ */
.glass{
  background:linear-gradient(160deg,rgba(255,255,255,.075),rgba(255,255,255,.02));
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
  border-radius:var(--radius);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:12px;
  border:0;
  font-size:15px;
  font-weight:500;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.btn-glow{background:linear-gradient(135deg,#2FB8FF,#0E6FB8);color:#04121F;box-shadow:var(--glow);}
.btn-glow:hover{transform:translateY(-2px);box-shadow:var(--glow-strong);color:#04121F;}
.btn-glow:active{transform:translateY(0);box-shadow:0 1px 8px rgba(47,184,255,.4);}
.btn-ghost{background:transparent;color:var(--primary);border:1px solid rgba(47,184,255,.5);}
.btn-ghost:hover{background:rgba(47,184,255,.12);color:#8CDAFF;transform:translateY(-2px);}
.btn-accent{background:linear-gradient(135deg,#F5A623,#C77B08);color:#1B1102;box-shadow:0 8px 26px rgba(245,166,35,.28);}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 12px 34px rgba(245,166,35,.4);color:#1B1102;}
.btn-text{height:auto;padding:0;background:none;border:0;color:var(--accent);font-size:14.5px;font-weight:500;box-shadow:none;}
.btn-text:hover{color:#FFC濃;}
.btn-text:hover{color:#FFC濃;}
.btn-text:hover{color:#FFCB6B;transform:translateY(-1px);}
.btn[disabled],.btn:disabled{opacity:.45;box-shadow:none;transform:none;cursor:not-allowed;}
/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  height:64px;
  background:rgba(6,10,20,.72);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.site-header.scrolled{
  background:rgba(6,10,20,.92);
  border-bottom-color:rgba(47,184,255,.22);
  box-shadow:0 12px 32px rgba(0,0,0,.42);
}
.nav-wrap{height:64px;display:flex;align-items:center;gap:22px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text-1);}
.brand:hover{color:var(--text-1);}
.brand-mark{width:34px;height:34px;flex:0 0 auto;}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-name{font-size:18px;font-weight:700;letter-spacing:-.4px;color:var(--text-1);}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.14em;font-family:var(--font-mono);}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:12px;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 13px;
  border-radius:10px;
  font-size:14px;
  font-weight:500;
  color:var(--text-2);
  transition:color .18s ease-out,background .18s ease-out;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05);}
.nav-link.active{color:var(--text-1);}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--primary),rgba(47,184,255,0));
  box-shadow:0 0 10px rgba(47,184,255,.7);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-box{
  display:flex;
  align-items:center;
  gap:8px;
  width:262px;
  height:38px;
  padding:0 10px 0 12px;
  border-radius:12px;
  background:linear-gradient(160deg,rgba(255,255,255,.075),rgba(255,255,255,.02));
  border:1px solid var(--line);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.search-box:focus-within{border-color:rgba(47,184,255,.55);box-shadow:0 0 0 3px rgba(47,184,255,.12);}
.search-box svg{width:16px;height:16px;flex:0 0 auto;stroke:var(--text-3);}
.search-box input{
  flex:1 1 auto;
  min-width:0;
  height:100%;
  border:0;
  background:transparent;
  color:var(--text-1);
  font-size:13.5px;
  outline:none;
}
.search-box input::placeholder{color:var(--text-3);}
.kbd{
  font-family:var(--font-mono);
  font-size:11px;
  color:var(--text-3);
  border:1px solid var(--line);
  border-radius:6px;
  padding:1px 5px;
  background:rgba(255,255,255,.04);
  flex:0 0 auto;
}
.nav-actions .btn{height:38px;padding:0 18px;font-size:14px;border-radius:10px;}
.burger{
  display:none;
  position:relative;
  width:40px;height:40px;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  cursor:pointer;
  transition:border-color .18s ease-out,background .18s ease-out;
}
.burger:hover{border-color:rgba(47,184,255,.4);}
.burger span{position:absolute;left:11px;right:11px;top:50%;height:2px;background:var(--text-1);border-radius:2px;transform:translateY(-50%);transition:background .2s ease-out;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;right:0;height:2px;background:var(--text-1);border-radius:2px;transition:transform .2s ease-out,top .2s ease-out;}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}
.burger[aria-expanded="true"] span{background:transparent;}
.burger[aria-expanded="true"] span::before{top:0;transform:rotate(45deg);}
.burger[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg);}
.drawer{
  position:fixed;
  inset:64px 0 0 0;
  z-index:55;
  background:rgba(6,10,20,.97);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  padding:20px 24px 40px;
  display:none;
  flex-direction:column;
  gap:6px;
  overflow-y:auto;
  border-top:1px solid var(--line);
}
.drawer.open{display:flex;}
.drawer .drawer-link{
  display:flex;
  align-items:center;
  min-height:52px;
  padding:0 14px;
  border-radius:12px;
  color:var(--text-1);
  font-size:16px;
  font-weight:500;
  border:1px solid transparent;
}
.drawer .drawer-link:hover,.drawer .drawer-link.active{background:rgba(47,184,255,.10);border-color:rgba(47,184,255,.28);}
.drawer .search-box{display:flex;width:100%;height:46px;margin:6px 0 14px;}
.drawer .btn{width:100%;margin-top:14px;}
/* ============ 分类页头 ============ */
.cat-head{
  position:relative;
  overflow:hidden;
  padding:38px 0 26px;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,18,34,.9),rgba(6,10,20,.4));
}
.cat-head::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:60px;
  background:url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
  opacity:.11;
  pointer-events:none;
}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:14px;
}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{opacity:.55;}
.cat-head h1{
  font-size:clamp(26px,3.6vw,42px);
  letter-spacing:-.6px;
  margin:0 0 12px;
  max-width:24ch;
}
.cat-lede{font-size:15.5px;color:var(--text-2);margin:0 0 16px;max-width:62ch;}
.cat-meta{display:flex;flex-wrap:wrap;gap:10px 20px;font-size:13px;color:var(--text-3);}
.cat-meta .mono{color:var(--text-2);}
.cat-meta .dot{width:6px;height:6px;border-radius:50%;background:var(--mint);display:inline-block;margin-right:7px;box-shadow:0 0 10px rgba(111,227,196,.7);}
/* ============ 标签条 ============ */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;padding:24px 0 0;}
.chip{
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 15px;
  border-radius:999px;
  font-size:13.5px;
  font-weight:500;
  color:var(--text-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  cursor:pointer;
  transition:color .18s ease-out,border-color .18s ease-out,background .18s ease-out,box-shadow .18s ease-out;
}
.chip:hover{color:var(--text-1);border-color:rgba(47,184,255,.4);background:rgba(47,184,255,.08);}
.chip.active{
  color:#04121F;
  background:linear-gradient(135deg,#2FB8FF,#0E6FB8);
  border-color:transparent;
  box-shadow:0 8px 22px rgba(47,184,255,.32);
}
/* ============ 板块通用 ============ */
.section{padding:64px 0;border-top:1px solid var(--line-soft);}
.section:nth-of-type(even){background:var(--bg-1);}
.sec-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:12px;margin-bottom:26px;}
.sec-num{font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--accent);}
.sec-title{font-size:clamp(22px,2.4vw,31px);letter-spacing:-.4px;}
.sec-rule{width:48px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),rgba(47,184,255,0));display:block;margin-top:12px;}
.sec-sub{width:100%;max-width:68ch;font-size:14.5px;color:var(--text-3);margin:8px 0 0;}
/* ============ 列表主体 ============ */
.lib-layout{display:grid;grid-template-columns:224px minmax(0,1fr);gap:32px;align-items:start;}
.toc{
  position:sticky;
  top:88px;
  padding:20px 18px;
  border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow);
}
.toc h3{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--text-3);
  font-weight:500;
  margin-bottom:12px;
}
.toc a{
  display:flex;
  align-items:baseline;
  gap:10px;
  padding:9px 10px;
  border-radius:10px;
  font-size:14px;
  color:var(--text-2);
  transition:background .18s ease-out,color .18s ease-out;
}
.toc a:hover{background:rgba(255,255,255,.05);color:var(--text-1);}
.toc a .idx{font-family:var(--font-mono);font-size:11.5px;color:var(--accent);letter-spacing:.04em;}
.entry-list{display:flex;flex-direction:column;gap:16px;}
.entry{
  display:grid;
  grid-template-columns:200px minmax(0,1fr);
  gap:20px;
  padding:16px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.018));
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.entry:hover{transform:translateY(-2px);border-color:rgba(47,184,255,.45);box-shadow:var(--shadow);}
.entry-thumb{
  display:block;
  aspect-ratio:16 / 10;
  border-radius:12px;
  overflow:hidden;
  background:#0d1524;
  border:1px solid var(--line-soft);
}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.entry:hover .entry-thumb img{transform:scale(1.03);}
.entry-title{font-size:18px;line-height:1.4;margin:0 0 8px;}
.entry-title a{color:var(--text-1);}
.entry-title a:hover{color:#8CDAFF;}
.entry-desc{
  font-size:14.5px;
  margin:0 0 12px;
  color:var(--text-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.entry-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:var(--text-3);}
.tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:8px;
  font-size:12px;
  font-weight:500;
  color:var(--primary);
  background:rgba(47,184,255,.10);
  border:1px solid rgba(47,184,255,.22);
}
.entry-meta .date{margin-left:auto;font-family:var(--font-mono);font-size:12px;color:var(--text-3);}
.more-line{margin-top:24px;display:flex;align-items:center;gap:14px;}
.more-line .hint{font-size:13px;color:var(--text-3);}
/* ============ 要点速览 ============ */
.note-list{display:grid;gap:14px;}
.note-item{
  padding:18px 22px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  border-left:3px solid rgba(47,184,255,.6);
  background:rgba(255,255,255,.035);
  position:relative;
  transition:background .18s ease-out,transform .18s ease-out;
}
.note-item:hover{background:rgba(47,184,255,.06);transform:translateY(-2px);}
.note-item .note-idx{
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--accent);
  letter-spacing:.08em;
  display:block;
  margin-bottom:6px;
}
.note-item strong{display:block;color:var(--text-1);font-size:16px;font-weight:700;margin-bottom:6px;}
.note-item p{margin:0;font-size:14.5px;}
/* ============ 推荐与专题卡 ============ */
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.rec-card{
  display:flex;
  flex-direction:column;
  overflow:hidden;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.rec-card:hover{transform:translateY(-2px);border-color:rgba(47,184,255,.45);box-shadow:var(--shadow),0 0 0 1px rgba(47,184,255,.18);}
.rec-card .thumb{aspect-ratio:16 / 9;overflow:hidden;background:#0d1524;}
.rec-card .thumb img{width:100%;height:100%;object-fit:cover;}
.rec-body{padding:18px 20px 20px;}
.rec-body h3{font-size:17px;margin-bottom:8px;line-height:1.4;}
.rec-body h3 a{color:var(--text-1);}
.rec-body h3 a:hover{color:#8CDAFF;}
.rec-body p{font-size:14px;margin:0 0 12px;}
.rec-body .meta{font-size:12.5px;color:var(--text-3);font-family:var(--font-mono);}
.topic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.topic-card{
  padding:22px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:rgba(255,255,255,.035);
  transition:border-color .18s ease-out,transform .18s ease-out,background .18s ease-out;
}
.topic-card:hover{border-color:rgba(245,166,35,.5);background:rgba(245,166,35,.06);transform:translateY(-2px);}
.topic-card .topic-idx{font-family:var(--font-mono);font-size:12px;color:var(--accent);letter-spacing:.08em;}
.topic-card h3{font-size:17px;margin:10px 0 8px;}
.topic-card h3 a{color:var(--text-1);}
.topic-card h3 a:hover{color:#FFCB6B;}
.topic-card p{font-size:14px;margin:0;}
/* ============ 问答 ============ */
.qa-list{border-top:1px solid var(--line-soft);}
.qa-item{padding:18px 0;border-bottom:1px solid var(--line-soft);}
.qa-item h3{font-size:16px;margin-bottom:8px;}
.qa-item p{margin:0;font-size:14.5px;max-width:62ch;}
/* ============ 订阅条 ============ */
.cta-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:20px;
  padding:24px;
  border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(47,184,255,.12),rgba(255,255,255,.02));
  border:1px solid rgba(47,184,255,.28);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08);
}
.cta-bar .cta-text{flex:1 1 320px;}
.cta-bar .cta-text strong{display:block;font-size:17px;color:var(--text-1);margin-bottom:6px;}
.cta-bar .cta-text span{font-size:13.5px;color:var(--text-2);}
.cta-form{display:flex;gap:10px;flex:1 1 380px;align-items:center;}
.field{flex:1 1 auto;min-width:0;}
.field input{
  width:100%;
  height:46px;
  padding:0 14px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  color:var(--text-1);
  font-size:14px;
  outline:none;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field input::placeholder{color:var(--text-3);}
.field input:focus{border-color:rgba(47,184,255,.6);box-shadow:0 0 0 3px rgba(47,184,255,.14);}
.field.error input{border-color:var(--danger);}
.field-tip{display:block;font-size:12.5px;color:var(--danger);margin-top:6px;min-height:16px;}
.form-ok{
  display:none;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--mint);
  margin-top:10px;
  width:100%;
}
.form-ok.show{display:flex;}
.form-ok svg{width:16px;height:16px;stroke:var(--mint);}
.cta-foot{width:100%;font-size:12.5px;color:var(--text-3);margin-top:4px;}
/* ============ 页脚 ============ */
.site-footer{border-top:1px solid var(--line);background:var(--bg-0);position:relative;z-index:1;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding:60px 0 36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .name{font-size:18px;font-weight:700;color:var(--text-1);letter-spacing:-.3px;}
.footer-desc{font-size:14px;color:var(--text-3);margin:0;max-width:36ch;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;margin:0;padding:0;}
.footer-col a{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  padding:20px 0 32px;
  border-top:1px solid var(--line-soft);
  font-size:13px;
  color:var(--text-3);
}
/* ============ 骨架屏（加载态） ============ */
.skeleton{
  position:relative;
  overflow:hidden;
  background:rgba(255,255,255,.05);
  border-radius:var(--radius-xs);
}
.skeleton::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(255,255,255,.05),rgba(255,255,255,.12),rgba(255,255,255,.05));
  animation:sweep 1.2s linear infinite;
}
@keyframes sweep{from{transform:translateX(-100%);}to{transform:translateX(100%);}}
/* ============ 断点 ============ */
@media (min-width:1280px){
  .container{max-width:1280px;}
}
@media (max-width:1024px){
  .container{padding:0 20px;}
  .nav-links{display:none;}
  .search-box{display:none;}
  .burger{display:block;}
  .lib-layout{grid-template-columns:1fr;gap:24px;}
  .toc{position:static;display:flex;flex-wrap:wrap;gap:4px 8px;padding:14px;}
  .toc h3{width:100%;margin-bottom:8px;}
  .toc a{padding:8px 12px;background:rgba(255,255,255,.04);border:1px solid var(--line-soft);}
  .rec-grid,.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .cat-head{padding:30px 0 22px;}
  .cat-head h1{font-size:28px;}
  .cat-lede{font-size:14.5px;}
  .entry{grid-template-columns:1fr;padding:14px;gap:14px;}
  .entry-thumb{aspect-ratio:16 / 9;}
  .entry-meta .date{margin-left:0;}
  .rec-grid,.topic-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;padding:44px 0 28px;gap:24px;}
  .cta-bar{padding:20px;}
  .cta-form{flex-direction:column;align-items:stretch;width:100%;}
  .btn{width:auto;}
  .cta-form .btn{width:100%;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .brand-sub{display:none;}
  .nav-actions .btn{height:36px;padding:0 12px;font-size:13px;}
  .chip{height:32px;padding:0 12px;font-size:13px;}
  .entry-title{font-size:16.5px;}
  .entry-desc{font-size:14px;}
  .footer-bottom{flex-direction:column;gap:6px;}
}