/* roulang page: index */
/* ===== 设计变量 ===== */
:root{
  --bg:#060B16;
  --surface:#0A111F;
  --surface-alt:#08101C;
  --glass:rgba(255,255,255,0.05);
  --glass-strong:rgba(255,255,255,0.075);
  --line:rgba(255,255,255,0.10);
  --line-soft:rgba(255,255,255,0.08);
  --cyan:#24E0C8;
  --cyan-deep:#14B9A5;
  --cyan-light:#7CF3E4;
  --orange:#FF8A3D;
  --orange-deep:#E4711F;
  --text:#EAF2FB;
  --text-2:#A7B7CC;
  --text-3:#6F8199;
  --ok:#35D07F;
  --warn:#FF5D5D;
  --info:#5AA9FF;
  --radius-lg:20px;
  --radius:18px;
  --radius-sm:12px;
  --radius-badge:6px;
  --shadow-card:0 10px 36px rgba(3,8,18,0.5);
  --shadow-hover:0 18px 48px rgba(3,8,18,0.65);
  --shadow-cyan:0 0 0 1px rgba(36,224,200,0.45),0 10px 28px rgba(36,224,200,0.26);
  --shadow-orange:0 0 0 1px rgba(255,138,61,0.5),0 10px 30px rgba(255,138,61,0.3);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","Barlow","PingFang SC","Microsoft YaHei",sans-serif;
  --space-section:104px;
  --header-h:72px;
}

/* ===== 基础 reset ===== */
*,*::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-cn);
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{border:0;background:none;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{line-height:1.35;letter-spacing:0;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}

/* ===== 通用容器与区块 ===== */
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 24px;
}
.section{
  padding:var(--space-section) 0;
  position:relative;
}
.section--alt{background:var(--surface-alt);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.section-head .head-text{max-width:720px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:0.04em;
  color:var(--cyan);
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:22px;height:1px;
  background:linear-gradient(90deg,transparent,var(--cyan));
}
h2.section-title{font-size:36px;font-weight:700;}
h3{font-size:24px;font-weight:600;}
.section-desc{
  margin-top:14px;
  color:var(--text-2);
  font-size:16px;
  line-height:1.85;
}
.lead-text{color:var(--text-2);font-size:17px;line-height:1.9;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:-0.02em;}

/* ===== 背景装饰 ===== */
.bg-glow{
  position:absolute;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(680px 320px at 18% 6%,rgba(36,224,200,0.10),transparent 70%),
    radial-gradient(520px 300px at 88% 22%,rgba(255,138,61,0.07),transparent 72%);
}
.bg-grid{
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,0.04) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 72%);
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:999px;
  font-weight:600;
  font-size:15px;
  line-height:1;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
  border:1px solid transparent;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-xs{height:34px;padding:0 14px;font-size:13px;}
.btn-primary{
  background:linear-gradient(135deg,var(--orange),var(--orange-deep));
  color:#1A0D03;
  box-shadow:var(--shadow-orange);
}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 0 0 1px rgba(255,138,61,0.6),0 16px 40px rgba(255,138,61,0.38);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(255,138,61,0.5),0 6px 18px rgba(255,138,61,0.24);}
.btn-ghost{
  border-color:rgba(36,224,200,0.45);
  color:var(--cyan-light);
  background:rgba(36,224,200,0.04);
}
.btn-ghost:hover{background:rgba(36,224,200,0.12);border-color:var(--cyan);color:var(--cyan-light);}
.btn-ghost:active{transform:translateY(1px);background:rgba(36,224,200,0.16);}
.btn-plain{
  height:auto;
  padding:0;
  color:var(--cyan);
  font-weight:600;
  font-size:14px;
  border-radius:0;
}
.btn-plain:hover{color:var(--cyan-light);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px;}
.btn:disabled,.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* ===== 徽章 / 标签 / 胶囊 ===== */
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:var(--radius-badge);
  font-size:12px;
  font-weight:600;
  line-height:1;
  letter-spacing:0.02em;
}
.badge-cyan{background:rgba(36,224,200,0.16);color:var(--cyan-light);}
.badge-orange{background:var(--orange);color:#241004;}
.badge-ok{background:rgba(53,208,127,0.16);color:#7CE7AE;}
.badge-warn{background:rgba(255,93,93,0.16);color:#FFA0A0;}
.badge-info{background:rgba(90,169,255,0.16);color:#A9D1FF;}
.badge-muted{background:rgba(255,255,255,0.06);color:var(--text-3);}
.chips{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.chip{
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 16px;
  border-radius:999px;
  font-size:14px;
  color:var(--text-2);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(18px) saturate(140%);
  transition:all .2s ease;
}
.chip:hover{color:var(--cyan-light);border-color:rgba(36,224,200,0.45);}
.chip.is-active{
  color:#06231F;
  background:linear-gradient(135deg,var(--cyan),var(--cyan-deep));
  border-color:transparent;
  font-weight:600;
}

/* ===== Header / 导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  height:var(--header-h);
  display:flex;
  align-items:center;
  background:rgba(6,11,22,0.72);
  backdrop-filter:blur(10px) saturate(120%);
  border-bottom:1px solid transparent;
  transition:background-color .25s ease,border-color .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(6,11,22,0.86);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom-color:rgba(36,224,200,0.28);
  box-shadow:0 10px 30px rgba(0,0,0,0.35);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  width:100%;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:11px;
  background:linear-gradient(135deg,rgba(36,224,200,0.28),rgba(36,224,200,0.06));
  border:1px solid rgba(36,224,200,0.45);
  box-shadow:0 0 18px rgba(36,224,200,0.28);
}
.brand-mark svg{width:19px;height:19px;stroke:var(--cyan-light);fill:none;stroke-width:1.7;}
.brand-text{font-size:18px;font-weight:700;color:var(--text);}
.brand-text .short{display:none;}
.nav-channels{
  display:flex;
  align-items:center;
  gap:6px;
  overflow-x:auto;
  scrollbar-width:none;
  flex:1 1 auto;
}
.nav-channels::-webkit-scrollbar{display:none;}
.nav-channels a{
  position:relative;
  padding:10px 14px;
  font-size:15px;
  color:var(--text-2);
  border-radius:10px;
  white-space:nowrap;
  transition:color .2s ease;
}
.nav-channels a::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:4px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),rgba(36,224,200,0));
  opacity:0;
  transition:opacity .2s ease;
}
.nav-channels a:hover{color:var(--text);}
.nav-channels a:hover::after{opacity:.6;}
.nav-channels a.is-active{color:var(--cyan);font-weight:600;}
.nav-channels a.is-active::after{opacity:1;box-shadow:0 0 10px rgba(36,224,200,0.7);}
.header-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.search{
  display:flex;
  align-items:center;
  gap:8px;
  width:220px;
  height:40px;
  padding:0 14px;
  border-radius:999px;
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(18px) saturate(140%);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.search svg{width:15px;height:15px;stroke:var(--text-3);fill:none;stroke-width:1.8;flex:0 0 auto;}
.search input{
  width:100%;
  border:0;
  background:transparent;
  outline:none;
  font-size:14px;
  color:var(--text);
}
.search input::placeholder{color:var(--text-3);}
.search:focus-within{
  border-color:var(--cyan);
  box-shadow:0 0 0 1px rgba(36,224,200,0.35),0 8px 22px rgba(36,224,200,0.18);
  transform:scale(1.01);
}
.burger{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
  place-items:center;
}
.burger svg{width:20px;height:20px;stroke:var(--text);fill:none;stroke-width:1.8;}

/* ===== 抽屉 ===== */
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(3,7,14,0.72);
  opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
  z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;
  top:0;right:0;
  width:min(340px,88vw);
  height:100%;
  padding:24px 22px 36px;
  background:rgba(9,15,28,0.97);
  backdrop-filter:blur(18px) saturate(140%);
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .28s cubic-bezier(0.4,0,0.2,1);
  z-index:90;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
.drawer-close{
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  display:grid;place-items:center;
  background:var(--glass);
}
.drawer-close svg{width:18px;height:18px;stroke:var(--text);fill:none;stroke-width:1.9;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:22px;}
.drawer-nav a{
  padding:14px 12px;
  border-radius:12px;
  font-size:16px;
  color:var(--text-2);
  border:1px solid transparent;
  transition:all .2s ease;
}
.drawer-nav a:hover,.drawer-nav a.is-active{
  color:var(--cyan-light);
  background:rgba(36,224,200,0.08);
  border-color:rgba(36,224,200,0.28);
}
.drawer-search{
  display:flex;align-items:center;gap:8px;
  height:44px;padding:0 14px;margin-bottom:18px;
  border-radius:12px;
  background:var(--glass);
  border:1px solid var(--line);
}
.drawer-search svg{width:15px;height:15px;stroke:var(--text-3);fill:none;stroke-width:1.8;}
.drawer-search input{width:100%;background:transparent;border:0;outline:none;font-size:14px;}
.drawer-actions{display:flex;flex-direction:column;gap:12px;margin-bottom:24px;}
.drawer-actions .btn{width:100%;}
.drawer-contact{
  border-top:1px solid var(--line-soft);
  padding-top:18px;
  font-size:13px;
  color:var(--text-3);
  line-height:2;
}

/* ===== Hero ===== */
.hero{
  position:relative;
  padding:88px 0 84px;
  overflow:hidden;
  background:var(--bg);
}
.hero-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:6fr 6fr;
  gap:56px;
  align-items:center;
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:10px;
  height:34px;
  padding:0 14px;
  border-radius:999px;
  background:var(--glass);
  border:1px solid var(--line);
  font-size:13px;
  color:var(--text-2);
  margin-bottom:22px;
}
.hero-tag .dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 10px var(--cyan);
}
.hero h1{
  font-size:56px;
  font-weight:800;
  line-height:1.18;
  margin-bottom:22px;
}
.hero h1 .accent{
  background:linear-gradient(120deg,var(--cyan),var(--cyan-light));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  color:var(--text-2);
  font-size:17px;
  line-height:1.9;
  max-width:560px;
  margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px;}
.hero-points{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line-soft);
  padding-top:22px;
}
.hero-points li{
  padding:0 16px;
  border-left:1px solid var(--line-soft);
}
.hero-points li:first-child{padding-left:0;border-left:0;}
.hero-points .pnum{
  font-family:var(--font-num);
  font-size:22px;
  font-weight:700;
  color:var(--cyan);
  letter-spacing:-0.02em;
}
.hero-points .plabel{
  font-size:13px;
  color:var(--text-3);
  line-height:1.6;
  margin-top:2px;
}
.hero-visual{position:relative;}
.hero-figure{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  aspect-ratio:16/12;
  background:var(--surface);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.hero-figure::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,22,0.24),rgba(6,11,22,0.82));
}
.hero-figure:hover img{transform:scale(1.03);}
.hero-card{
  position:absolute;
  left:-18px;
  bottom:-24px;
  width:262px;
  padding:18px 20px;
  border-radius:var(--radius);
  background:rgba(10,17,31,0.86);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px) saturate(140%);
}
.hero-card h4{font-size:15px;font-weight:600;margin-bottom:12px;}
.hero-card ul{display:flex;flex-direction:column;gap:9px;}
.hero-card li{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;
  color:var(--text-2);
}
.hero-card li .tick{
  width:14px;height:14px;flex:0 0 auto;
  stroke:var(--cyan);fill:none;stroke-width:2.4;
}
.hero-card li span:first-child{display:flex;align-items:center;gap:8px;}

/* ===== 价值主张 ===== */
.value-grid{
  display:grid;
  grid-template-columns:8fr 4fr;
  gap:32px;
  align-items:start;
}
.value-list{display:flex;flex-direction:column;gap:10px;}
.value-item{
  display:grid;
  grid-template-columns:88px 1fr;
  gap:20px;
  padding:26px 0;
  border-top:1px solid var(--line-soft);
}
.value-item:last-child{border-bottom:1px solid var(--line-soft);}
.value-item .vnum{
  font-family:var(--font-num);
  font-size:44px;
  font-weight:700;
  color:rgba(36,224,200,0.55);
  line-height:1;
  letter-spacing:-0.02em;
}
.value-item h3{font-size:21px;margin-bottom:10px;}
.value-item p{color:var(--text-2);font-size:15.5px;line-height:1.9;}
.check-card{
  padding:26px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px) saturate(140%);
  position:sticky;
  top:calc(var(--header-h) + 24px);
}
.check-card h3{font-size:17px;margin-bottom:6px;}
.check-card .cc-sub{font-size:13px;color:var(--text-3);margin-bottom:18px;}
.check-card ul{display:flex;flex-direction:column;gap:12px;}
.check-card li{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 14px;
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,0.035);
  border:1px solid var(--line-soft);
  transition:border-color .2s ease,background-color .2s ease;
}
.check-card li:hover{border-color:rgba(36,224,200,0.35);background:rgba(36,224,200,0.06);}
.check-card li .ci{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-2);}
.check-card li .ci svg{width:16px;height:16px;stroke:var(--cyan);fill:none;stroke-width:1.8;flex:0 0 auto;}

/* ===== 功能卡片 ===== */
.feature-tabs{margin-bottom:28px;}
.feature-grid{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:24px;
}
.feature-card{
  grid-column:span 3;
  padding:26px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px) saturate(140%);
  display:flex;
  flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.feature-card.wide{grid-column:span 4;}
.feature-card.narrow{grid-column:span 2;}
.feature-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(36,224,200,0.35);
}
.feature-icon{
  width:44px;height:44px;
  border-radius:12px;
  display:grid;place-items:center;
  background:rgba(36,224,200,0.12);
  border:1px solid rgba(36,224,200,0.3);
  margin-bottom:18px;
}
.feature-icon svg{width:20px;height:20px;stroke:var(--cyan-light);fill:none;stroke-width:1.7;}
.feature-card h3{font-size:20px;margin-bottom:10px;}
.feature-card p{color:var(--text-2);font-size:15px;line-height:1.85;}
.mini-points{margin:18px 0 20px;display:flex;flex-direction:column;gap:8px;}
.mini-points li{
  position:relative;
  padding-left:16px;
  font-size:13.5px;
  color:var(--text-3);
}
.mini-points li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:6px;height:6px;
  border-radius:2px;
  background:rgba(36,224,200,0.7);
}
.feature-card .btn-plain{margin-top:auto;align-self:flex-start;}

/* ===== 场景步骤流 ===== */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  position:relative;
}
.steps::before{
  content:"";
  position:absolute;
  top:34px;left:6%;right:6%;
  height:1px;
  background:linear-gradient(90deg,rgba(36,224,200,0.05),rgba(36,224,200,0.45),rgba(36,224,200,0.05));
}
.step{
  position:relative;
  padding-top:64px;
  padding-right:8px;
}
.step .snum{
  position:absolute;
  top:0;left:0;
  width:68px;height:68px;
  border-radius:18px;
  display:grid;place-items:center;
  font-family:var(--font-num);
  font-size:22px;
  font-weight:700;
  color:var(--cyan-light);
  background:rgba(10,17,31,0.96);
  border:1px solid rgba(36,224,200,0.32);
  box-shadow:0 0 0 6px rgba(6,11,22,0.9),0 10px 26px rgba(3,8,18,0.6);
}
.step h3{font-size:19px;margin-bottom:10px;}
.step p{font-size:14.5px;color:var(--text-2);line-height:1.85;margin-bottom:16px;}
.step .step-thumb{
  border-radius:var(--radius-sm);
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:16/9;
  background:var(--surface);
}
.step .step-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.step .step-thumb:hover img{transform:scale(1.03);}

/* ===== 使用反馈 ===== */
.feedback-grid{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:32px;
  align-items:stretch;
}
.feedback-figure{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  min-height:340px;
}
.feedback-figure img{width:100%;height:100%;object-fit:cover;}
.feedback-figure::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(6,11,22,0.15),rgba(6,11,22,0.86));
}
.feedback-figure .fig-cap{
  position:absolute;
  left:22px;right:22px;bottom:20px;
  z-index:2;
  font-size:14px;
  color:var(--text-2);
}
.feedback-figure .fig-cap strong{display:block;font-size:17px;color:var(--text);margin-bottom:6px;font-weight:600;}
.quote-list{display:flex;flex-direction:column;gap:16px;}
.quote{
  display:grid;
  grid-template-columns:1fr 132px;
  gap:22px;
  align-items:center;
  padding:22px 24px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(18px) saturate(140%);
  transition:border-color .2s ease,transform .2s ease;
}
.quote:hover{border-color:rgba(36,224,200,0.32);transform:translateY(-2px);}
.quote p{font-size:15.5px;color:var(--text);line-height:1.85;}
.quote .who{
  margin-top:10px;
  font-size:13px;
  color:var(--text-3);
}
.quote .metric{
  text-align:right;
  border-left:1px solid var(--line-soft);
  padding-left:18px;
}
.quote .metric .mnum{
  font-family:var(--font-num);
  font-size:30px;
  font-weight:700;
  color:var(--cyan);
  line-height:1.1;
}
.quote .metric .mlabel{font-size:12px;color:var(--text-3);margin-top:4px;}

/* ===== 档位 ===== */
.plan-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  align-items:stretch;
}
.plan{
  position:relative;
  display:flex;
  flex-direction:column;
  padding:30px 26px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px) saturate(140%);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.plan:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.plan.is-featured{
  border-color:rgba(36,224,200,0.55);
  box-shadow:0 0 0 1px rgba(36,224,200,0.35),0 18px 48px rgba(3,8,18,0.7);
  background:linear-gradient(180deg,rgba(36,224,200,0.08),rgba(255,255,255,0.035));
}
.plan .plan-flag{
  position:absolute;
  top:-12px;left:26px;
}
.plan h3{font-size:19px;margin-bottom:8px;}
.plan .plan-sub{font-size:13.5px;color:var(--text-3);min-height:44px;margin-bottom:18px;line-height:1.7;}
.plan .price{
  display:flex;
  align-items:baseline;
  gap:6px;
  padding-bottom:20px;
  border-bottom:1px solid var(--line-soft);
  margin-bottom:20px;
}
.plan .price .pval{
  font-family:var(--font-num);
  font-size:44px;
  font-weight:700;
  letter-spacing:-0.02em;
  line-height:1;
  color:var(--text);
}
.plan.is-featured .price .pval{color:var(--cyan-light);}
.plan .price .punit{font-size:13px;color:var(--text-3);}
.plan ul{display:flex;flex-direction:column;gap:10px;margin-bottom:26px;}
.plan li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--text-2);line-height:1.7;}
.plan li svg{width:15px;height:15px;stroke:var(--cyan);fill:none;stroke-width:2.4;flex:0 0 auto;margin-top:6px;}
.plan .btn{margin-top:auto;width:100%;}

/* ===== 资讯列表 ===== */
.news-head-tools{display:flex;align-items:center;gap:18px;}
.news-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.news-card{
  display:flex;
  flex-direction:column;
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px) saturate(140%);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(36,224,200,0.35);}
.news-card--lead{
  grid-column:1 / -1;
  flex-direction:row;
  align-items:stretch;
}
.news-thumb{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:
    linear-gradient(rgba(255,255,255,0.045) 1px,transparent 1px) 0 0/22px 22px,
    linear-gradient(90deg,rgba(255,255,255,0.045) 1px,transparent 1px) 0 0/22px 22px,
    var(--surface);
  flex:0 0 auto;
}
.news-card--lead .news-thumb{width:44%;aspect-ratio:auto;}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-thumb .badge{position:absolute;top:14px;left:14px;z-index:2;}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.news-card--lead .news-body{padding:30px 32px;}
.news-body h3{
  font-size:17px;
  line-height:1.55;
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color .2s ease;
}
.news-card--lead .news-body h3{font-size:23px;}
.news-card:hover .news-body h3{color:var(--cyan-light);}
.news-body p{
  color:var(--text-2);
  font-size:14.5px;
  line-height:1.8;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:auto;
  padding-top:18px;
  font-size:13px;
  color:var(--text-3);
}
.news-meta .arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--cyan);
  font-weight:600;
}
.news-meta .arrow svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2;}
.empty-state{
  min-height:240px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:14px;
  border-radius:var(--radius);
  border:1px dashed var(--line);
  background:rgba(255,255,255,0.02);
  text-align:center;
  padding:40px 24px;
}
.empty-state svg{width:46px;height:46px;stroke:var(--text-3);fill:none;stroke-width:1.4;}
.empty-state p{color:var(--text-2);font-size:15px;}

/* ===== FAQ ===== */
.faq-wrap{
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(140%);
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.faq-item + .faq-item{border-top:1px solid var(--line-soft);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 24px;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--text);
  transition:color .2s ease,background-color .2s ease;
}
.faq-q:hover{color:var(--cyan-light);background:rgba(36,224,200,0.05);}
.faq-icon{
  position:relative;
  width:22px;height:22px;
  flex:0 0 auto;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--cyan);
  border-radius:2px;
  transition:transform .24s cubic-bezier(0.4,0,0.2,1),opacity .24s ease;
}
.faq-icon::before{left:0;top:10px;width:22px;height:2px;}
.faq-icon::after{left:10px;top:0;width:2px;height:22px;}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .24s cubic-bezier(0.4,0,0.2,1);
}
.faq-a-inner{
  padding:0 24px 22px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.9;
}

/* ===== CTA ===== */
.cta-panel{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(140deg,rgba(36,224,200,0.10),rgba(255,255,255,0.035));
  backdrop-filter:blur(18px) saturate(140%);
  padding:56px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  box-shadow:var(--shadow-card);
}
.cta-panel::before{
  content:"";
  position:absolute;
  width:520px;height:520px;
  right:-140px;top:-220px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(36,224,200,0.22),transparent 66%);
  pointer-events:none;
}
.cta-panel .cta-text{position:relative;max-width:640px;}
.cta-panel h2{font-size:32px;margin-bottom:12px;}
.cta-panel p{color:var(--text-2);font-size:15.5px;}
.cta-panel .cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:14px;}

/* ===== 页脚 ===== */
.site-footer{
  border-top:1px solid rgba(36,224,200,0.22);
  background:var(--surface-alt);
  padding:64px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:4fr 2fr 2fr 3fr;
  gap:36px;
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:34px;height:34px;}
.footer-desc{color:var(--text-3);font-size:14px;line-height:1.9;max-width:320px;}
.footer-contact{margin-top:16px;font-size:13.5px;color:var(--text-3);line-height:2;}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:var(--cyan);
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{
  font-size:14px;
  color:var(--text-2);
  transition:color .2s ease;
}
.footer-col a:hover{color:var(--cyan-light);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px;}
.footer-form{display:flex;gap:10px;margin-top:6px;}
.footer-form input{
  flex:1 1 auto;
  height:40px;
  padding:0 14px;
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,0.05);
  border:1px solid var(--line);
  outline:none;
  font-size:14px;
  color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.footer-form input::placeholder{color:var(--text-3);}
.footer-form input:focus{border-color:var(--cyan);box-shadow:0 0 0 1px rgba(36,224,200,0.3);}
.footer-note{margin-top:14px;font-size:12.5px;color:var(--text-3);line-height:1.8;}
.footer-bottom{
  border-top:1px solid rgba(36,224,200,0.16);
  padding:26px 0 32px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--cyan-light);text-decoration:underline;text-underline-offset:4px;}
.to-top{color:var(--cyan);font-weight:600;}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  :root{--space-section:80px;}
  .nav-channels{display:none;}
  .search{display:none;}
  .burger{display:grid;}
  .header-tools .btn-ghost{display:none;}
  .hero-inner{grid-template-columns:1fr;gap:48px;}
  .hero-visual{order:2;}
  .hero h1{font-size:44px;}
  .value-grid{grid-template-columns:1fr;}
  .check-card{position:static;}
  .feature-card,.feature-card.wide,.feature-card.narrow{grid-column:span 3;}
  .feedback-grid{grid-template-columns:1fr;}
  .plan-grid{grid-template-columns:repeat(2,1fr);}
  .plan.is-featured{grid-column:span 2;order:-1;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .steps::before{display:none;}
}
@media (max-width:768px){
  :root{--space-section:64px;--header-h:60px;}
  body{font-size:16px;line-height:1.75;}
  .container{padding:0 18px;}
  .brand-text{font-size:16px;}
  .brand-text .full{display:none;}
  .brand-text .short{display:inline;}
  .hero{padding:56px 0 64px;}
  .hero h1{font-size:32px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .hero-points{grid-template-columns:repeat(2,1fr);gap:18px 0;}
  .hero-points li:nth-child(3){padding-left:0;border-left:0;}
  .hero-card{position:static;width:100%;margin-top:16px;left:0;bottom:0;}
  h2.section-title{font-size:24px;}
  h3{font-size:19px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;}
  .value-item{grid-template-columns:60px 1fr;gap:14px;}
  .value-item .vnum{font-size:34px;}
  .feature-grid{grid-template-columns:1fr;}
  .feature-card,.feature-card.wide,.feature-card.narrow{grid-column:span 1;}
  .steps{grid-template-columns:1fr;}
  .step{padding-top:0;padding-left:78px;}
  .step .snum{width:56px;height:56px;font-size:18px;border-radius:16px;}
  .quote{grid-template-columns:1fr;gap:14px;}
  .quote .metric{text-align:left;border-left:0;border-top:1px solid var(--line-soft);padding-left:0;padding-top:12px;display:flex;align-items:baseline;gap:10px;}
  .plan-grid{grid-template-columns:1fr;}
  .plan.is-featured{grid-column:span 1;}
  .news-grid{grid-template-columns:1fr;}
  .news-card--lead{flex-direction:column;}
  .news-card--lead .news-thumb{width:100%;aspect-ratio:16/10;}
  .news-card--lead .news-body{padding:22px 24px 24px;}
  .news-card--lead .news-body h3{font-size:19px;}
  .faq-q{font-size:16px;padding:18px;}
  .faq-a-inner{padding:0 18px 20px;}
  .cta-panel{flex-direction:column;align-items:flex-start;padding:36px 24px;}
  .cta-panel h2{font-size:24px;}
  .cta-panel .cta-actions{width:100%;}
  .cta-panel .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{justify-content:flex-start;}
}
@media (max-width:480px){
  .hero h1{font-size:30px;}
  .hero-points{grid-template-columns:1fr;}
  .hero-points li{padding-left:0;border-left:0;padding-bottom:12px;}
  .btn{font-size:14px;padding:0 18px;}
  .plan .price .pval{font-size:38px;}
  .quote .metric .mnum{font-size:24px;}
}

/* roulang page: article */
:root{
  --bg:#060B16;
  --bg-2:#0A111F;
  --bg-3:#08101C;
  --glass:rgba(255,255,255,.05);
  --glass-2:rgba(255,255,255,.035);
  --glass-line:rgba(255,255,255,.10);
  --cyan:#24E0C8;
  --cyan-dark:#14B9A5;
  --cyan-soft:#7CF3E4;
  --orange:#FF8A3D;
  --orange-dark:#E4711F;
  --text:#EAF2FB;
  --text-2:#A7B7CC;
  --text-3:#6F8199;
  --line:rgba(255,255,255,.08);
  --ok:#35D07F;
  --warn:#FF5D5D;
  --info:#5AA9FF;
  --r-xl:20px;
  --r-lg:18px;
  --r-md:12px;
  --r-sm:6px;
  --shadow:0 10px 36px rgba(3,8,18,.5);
  --shadow-h:0 18px 48px rgba(3,8,18,.65);
  --glow-cyan:0 0 0 1px rgba(36,224,200,.45), 0 10px 28px rgba(36,224,200,.26);
  --glow-orange:0 0 0 1px rgba(255,138,61,.5), 0 12px 30px rgba(255,138,61,.28);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Inter","Barlow",system-ui,sans-serif;
  --header-h:72px;
}
*,*::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-cn);
  font-size:17px;
  line-height:1.8;
  letter-spacing:0;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0 0 auto 0;
  height:620px;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(680px 340px at 18% 0%, rgba(36,224,200,.08), transparent 70%),
    radial-gradient(560px 320px at 88% 6%, rgba(255,138,61,.06), transparent 72%),
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px) 0 0/100% 46px,
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px) 0 0/46px 100%;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease, transform .2s ease;}
button,input{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:0;}
p{margin:0;}
svg{width:100%;height:100%;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:var(--r-sm);}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1;}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  height:var(--header-h);
  display:flex;align-items:center;
  background:rgba(6,11,22,.66);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.site-header.is-scrolled{
  background:rgba(6,11,22,.86);
  backdrop-filter:blur(16px) saturate(150%);
  border-bottom-color:rgba(36,224,200,.28);
  box-shadow:0 10px 30px rgba(3,8,18,.5);
}
.header-inner{display:flex;align-items:center;gap:24px;width:100%;}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;
  display:grid;place-items:center;
  border-radius:10px;
  background:linear-gradient(150deg, rgba(36,224,200,.22), rgba(36,224,200,.04));
  border:1px solid rgba(36,224,200,.4);
  color:var(--cyan);
  box-shadow:0 0 18px rgba(36,224,200,.22);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text .short{display:none;}
.brand:hover .brand-text{color:var(--cyan-soft);}
.nav-channels{
  display:flex;align-items:center;gap:6px;
  flex:1 1 auto;
  min-width:0;overflow-x:auto;
  scrollbar-width:none;
}
.nav-channels::-webkit-scrollbar{display:none;}
.nav-channels a{
  position:relative;
  padding:8px 12px;
  font-size:15px;
  color:var(--text-2);
  white-space:nowrap;
  border-radius:999px;
}
.nav-channels a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:linear-gradient(90deg, var(--cyan), rgba(36,224,200,0));
  border-radius:2px;opacity:0;transition:opacity .2s ease;
}
.nav-channels a:hover{color:var(--cyan-soft);}
.nav-channels a:hover::after{opacity:.6;}
.nav-channels a.is-active{color:var(--cyan);font-weight:600;}
.nav-channels a.is-active::after{opacity:1;}
.header-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.search{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;padding:0 14px;
  border-radius:999px;
  background:var(--glass);
  border:1px solid var(--glass-line);
  color:var(--text-3);
  transition:border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.search svg{width:16px;height:16px;flex:0 0 16px;color:var(--cyan);}
.search input{
  width:100%;border:0;background:none;outline:none;
  font-size:14px;color:var(--text);
}
.search input::placeholder{color:var(--text-3);}
.search:focus-within{
  border-color:var(--cyan);
  box-shadow:0 0 0 3px rgba(36,224,200,.16);
  transform:scale(1.01);
}
.burger{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  border:1px solid var(--glass-line);background:var(--glass);
  color:var(--text);place-items:center;
}
.burger svg{width:22px;height:22px;}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:999px;
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:transform .18s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease, color .22s ease;
  white-space:nowrap;
}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-primary{
  background:linear-gradient(140deg, var(--orange), var(--orange-dark));
  color:#1A0C02;
  box-shadow:var(--glow-orange);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,138,61,.6), 0 16px 38px rgba(255,138,61,.36);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(255,138,61,.5), 0 8px 18px rgba(255,138,61,.24);}
.btn-ghost{
  background:rgba(255,255,255,.02);
  border-color:rgba(36,224,200,.4);
  color:var(--cyan-soft);
}
.btn-ghost:hover{background:rgba(36,224,200,.12);border-color:var(--cyan);color:#EAFEFB;}
.btn-ghost:active{transform:translateY(1px);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--cyan);font-size:14px;font-weight:600;
  border-bottom:1px solid rgba(36,224,200,.3);
  padding-bottom:2px;
}
.btn-text:hover{color:var(--cyan-soft);border-bottom-color:var(--cyan-soft);}
.btn:disabled,.btn[disabled]{opacity:.45;pointer-events:none;}

/* ===== Badges / chips ===== */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-sm);
  font-size:12px;font-weight:600;
  background:rgba(36,224,200,.14);
  color:var(--cyan-soft);
  border:1px solid rgba(36,224,200,.28);
}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 14px;
  border-radius:999px;font-size:13px;color:var(--text-2);
  background:var(--glass);border:1px solid var(--glass-line);
}
.chip:hover{color:var(--cyan-soft);border-color:rgba(36,224,200,.45);}

/* ===== Glass panels ===== */
.glass{
  background:var(--glass);
  border:1px solid var(--glass-line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(18px) saturate(140%);
}

/* ===== Breadcrumb ===== */
.crumb-bar{
  padding:22px 0 0;
  border-bottom:1px solid var(--line);
}
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
  padding-bottom:16px;
}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--cyan-soft);border-bottom:1px solid rgba(36,224,200,.5);}
.crumb .sep{color:var(--text-3);}
.crumb .current{
  max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-2);
}

/* ===== Article layout ===== */
.article-wrap{padding:44px 0 96px;}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:44px;
  align-items:start;
}
.article-head{margin-bottom:28px;}
.article-head h1{
  font-size:40px;line-height:1.28;font-weight:800;
  margin:14px 0 18px;
  max-width:22ch;
}
.lead{
  font-size:18px;line-height:1.85;color:var(--text-2);
  border-left:3px solid var(--cyan);
  padding-left:16px;
  max-width:70ch;
}
.meta-row{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  margin-top:18px;font-size:13px;color:var(--text-3);
}
.meta-row .dot{opacity:.6;}
.cover-figure{margin:26px 0 0;}
.cover-figure img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--r-lg);
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow);
}
.cover-figure figcaption{
  margin-top:10px;font-size:13px;color:var(--text-3);text-align:center;
}

/* ===== Article body ===== */
.article-body{
  max-width:780px;
  font-size:17px;
  line-height:1.9;
  color:var(--text);
}
.article-body > * + *{margin-top:1.2em;}
.article-body p{color:#dbe6f4;}
.article-body h2{
  position:relative;
  margin-top:48px;
  padding-left:16px;
  font-size:28px;
  line-height:1.4;
  color:var(--text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;
  width:4px;border-radius:3px;
  background:linear-gradient(180deg, var(--cyan), rgba(36,224,200,.15));
  box-shadow:0 0 14px rgba(36,224,200,.5);
}
.article-body h3{margin-top:34px;font-size:21px;font-weight:600;color:var(--text);}
.article-body ul,
.article-body ol{margin-top:1em;padding-left:0;}
.article-body li{
  position:relative;padding-left:22px;margin-top:.6em;color:#dbe6f4;
}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;
  width:7px;height:7px;border-radius:2px;
  background:var(--cyan);box-shadow:0 0 10px rgba(36,224,200,.6);
}
.article-body ol{counter-reset:olc;}
.article-body ol li{counter-increment:olc;}
.article-body ol li::before{
  content:counter(olc);
  position:absolute;left:0;top:.1em;
  width:18px;height:18px;border-radius:6px;
  display:grid;place-items:center;
  font-family:var(--font-num);font-size:11px;font-weight:700;
  color:#04211D;background:var(--cyan);
}
.article-body blockquote{
  margin:28px 0;
  padding:20px 22px;
  border-left:3px solid var(--cyan);
  border-radius:var(--r-md);
  background:var(--glass);
  backdrop-filter:blur(14px);
  color:var(--text-2);
  font-size:16px;
}
.article-body img{border-radius:14px;margin:28px 0;border:1px solid var(--glass-line);}
.article-body figure{margin:28px 0;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;}
.article-body a{color:var(--cyan-soft);border-bottom:1px solid rgba(36,224,200,.35);}
.article-body a:hover{color:var(--cyan);border-bottom-color:var(--cyan);}
.article-body strong{color:#fff;font-weight:600;}
.article-body table{
  width:100%;border-collapse:collapse;margin:28px 0;
  font-size:15px;
  border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--glass-line);
  background:var(--glass-2);
}
.article-body thead th{
  background:rgba(36,224,200,.14);
  color:var(--cyan-soft);
  font-weight:600;
  text-align:left;
}
.article-body th,
.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.03);}
.article-body pre{
  overflow-x:auto;padding:18px;border-radius:var(--r-md);
  background:rgba(2,6,14,.7);border:1px solid var(--glass-line);
  font-size:14px;line-height:1.7;
}
.article-body code{
  font-family:var(--font-num);font-size:.94em;
  background:rgba(36,224,200,.1);padding:2px 6px;border-radius:var(--r-sm);
  color:var(--cyan-soft);
}
.article-body pre code{background:none;padding:0;color:#cfe4f5;}

/* ===== Sidebar ===== */
.sidebar{position:sticky;top:calc(var(--header-h) + 24px);display:grid;gap:20px;}
.side-card{padding:22px;}
.side-title{
  display:flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--cyan);
  margin-bottom:14px;
}
.side-title span.line{flex:1;height:1px;background:var(--line);}
.toc-list{display:grid;gap:4px;}
.toc-list a{
  display:block;
  padding:8px 10px 8px 14px;
  font-size:14px;color:var(--text-2);
  border-left:2px solid transparent;
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  line-height:1.5;
}
.toc-list a:hover{color:var(--cyan-soft);background:rgba(255,255,255,.04);}
.toc-list a.is-current{
  color:var(--cyan);
  border-left-color:var(--cyan);
  background:rgba(36,224,200,.08);
}
.toc-empty{font-size:13px;color:var(--text-3);}
.side-posts{display:grid;gap:12px;}
.side-post{
  display:block;
  padding:12px 14px;
  border-radius:var(--r-md);
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
}
.side-post:hover{background:rgba(36,224,200,.07);border-color:rgba(36,224,200,.4);transform:translateY(-2px);}
.side-post strong{
  display:block;font-size:14px;font-weight:600;color:var(--text);
  line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.side-post:hover strong{color:var(--cyan-soft);}
.side-post em{display:block;margin-top:6px;font-style:normal;font-size:12px;color:var(--text-3);}
.side-actions{display:grid;gap:10px;}
.side-actions .btn{width:100%;}

/* ===== Article footer blocks ===== */
.article-foot{margin-top:48px;max-width:780px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.tag-row .label{font-size:13px;color:var(--text-3);}
.back-row{
  display:flex;justify-content:center;
  margin-top:32px;padding-top:28px;
  border-top:1px solid var(--line);
}
.notice-box{
  padding:18px 20px;border-radius:var(--r-md);
  font-size:15px;line-height:1.8;
  background:rgba(36,224,200,.07);
  border:1px solid rgba(36,224,200,.28);
  border-left:4px solid var(--cyan);
  color:var(--text-2);
}
.notice-box.warn{
  background:rgba(255,138,61,.08);
  border-color:rgba(255,138,61,.32);
  border-left-color:var(--orange);
}
.empty-state{
  min-height:260px;
  display:grid;place-items:center;gap:14px;
  text-align:center;
  padding:40px 24px;
}
.empty-state svg{width:56px;height:56px;color:var(--text-3);margin:0 auto;}
.empty-state p{font-size:16px;color:var(--text-2);}
.empty-state a{color:var(--cyan);font-weight:600;border-bottom:1px solid rgba(36,224,200,.4);}
.empty-state a:hover{color:var(--cyan-soft);}

/* ===== Sections ===== */
.section{padding:88px 0;}
.section-head{max-width:760px;margin-bottom:36px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--cyan);
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";width:22px;height:1px;background:linear-gradient(90deg, var(--cyan), transparent);
}
.section-head h2{font-size:34px;line-height:1.35;}
.section-head p{margin-top:14px;font-size:16px;color:var(--text-2);}

/* ===== Related cards ===== */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{
  display:flex;flex-direction:column;
  border-radius:var(--r-lg);
  overflow:hidden;
  background:var(--glass);
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(18px) saturate(140%);
  transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-h);border-color:rgba(36,224,200,.4);}
.post-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.post-card:hover .thumb img{transform:scale(1.03);}
.post-card .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(6,11,22,.05), rgba(6,11,22,.6));
}
.post-card .thumb .badge{position:absolute;left:14px;top:14px;z-index:2;}
.post-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-card h3{
  font-size:17px;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card:hover h3{color:var(--cyan-soft);}
.post-card p{
  font-size:14px;color:var(--text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .meta{
  margin-top:auto;padding-top:12px;
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
  border-top:1px solid var(--line);
}
.post-card .meta .arrow{color:var(--cyan);}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:0;border-radius:var(--r-lg);overflow:hidden;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 26px;text-align:left;
  font-size:17px;font-weight:600;color:var(--text);
}
.faq-q:hover{color:var(--cyan-soft);}
.faq-q .plus{
  position:relative;flex:0 0 22px;width:22px;height:22px;
  transition:transform .24s cubic-bezier(.4,0,.2,1);
}
.faq-q .plus::before,
.faq-q .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--cyan);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-q .plus::before{width:14px;height:2px;}
.faq-q .plus::after{width:2px;height:14px;}
.faq-item.is-open .plus{transform:rotate(135deg);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .24s cubic-bezier(.4,0,.2,1);
}
.faq-a .inner{padding:0 26px 24px;font-size:15.5px;color:var(--text-2);line-height:1.85;}

/* ===== CTA ===== */
.cta-band{
  position:relative;overflow:hidden;
  padding:52px 44px;
  border-radius:var(--r-xl);
  background:var(--glass);
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(18px) saturate(140%);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;width:520px;height:320px;right:-120px;top:-140px;
  background:radial-gradient(circle, rgba(36,224,200,.16), transparent 70%);
  pointer-events:none;
}
.cta-band h2{font-size:30px;line-height:1.35;position:relative;}
.cta-band p{margin-top:12px;font-size:15px;color:var(--text-2);max-width:60ch;position:relative;}
.cta-band .cta-action{position:relative;display:flex;gap:12px;flex-wrap:wrap;}

/* ===== Footer ===== */
.site-footer{
  position:relative;
  border-top:1px solid rgba(36,224,200,.22);
  background:linear-gradient(180deg, rgba(8,16,28,.6), rgba(6,11,22,.98));
  padding:72px 0 0;
  margin-top:20px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg, transparent, rgba(36,224,200,.7), transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  gap:36px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;margin-bottom:14px;}
.footer-desc{font-size:14px;line-height:1.85;color:var(--text-2);max-width:40ch;}
.footer-contact{margin-top:16px;font-size:13px;color:var(--text-3);line-height:1.9;}
.footer-col h4{font-size:15px;font-weight:600;color:var(--cyan);margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--cyan-soft);border-bottom:1px solid rgba(36,224,200,.45);}
.footer-form{display:flex;gap:10px;margin-bottom:12px;}
.footer-form input{
  flex:1;min-width:0;height:40px;padding:0 14px;
  border-radius:var(--r-md);
  background:var(--glass);
  border:1px solid var(--glass-line);
  font-size:14px;color:var(--text);outline:none;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.footer-form input::placeholder{color:var(--text-3);}
.footer-form input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(36,224,200,.14);}
.footer-note{font-size:13px;color:var(--text-3);line-height:1.8;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:24px 0 32px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.to-top{color:var(--text-2);}
.to-top:hover{color:var(--cyan-soft);}

/* ===== Drawer ===== */
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,6,14,.72);
  backdrop-filter:blur(3px);
  opacity:0;visibility:hidden;transition:opacity .26s ease, visibility .26s ease;
  z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);
  background:rgba(8,16,28,.97);
  border-left:1px solid var(--glass-line);
  box-shadow:-20px 0 60px rgba(3,8,18,.7);
  transform:translateX(100%);
  transition:transform .3s cubic-bezier(.4,0,.2,1);
  z-index:80;
  padding:22px 22px 32px;
  display:flex;flex-direction:column;gap:20px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.drawer-close{
  width:44px;height:44px;border-radius:var(--r-md);
  border:1px solid var(--glass-line);background:var(--glass);
  display:grid;place-items:center;color:var(--text);
}
.drawer-close svg{width:18px;height:18px;}
.drawer-nav{display:grid;gap:6px;}
.drawer-nav a{
  padding:13px 14px;border-radius:var(--r-md);
  font-size:15px;color:var(--text-2);
  border:1px solid transparent;
}
.drawer-nav a:hover,.drawer-nav a.is-active{
  color:var(--cyan-soft);background:rgba(36,224,200,.08);border-color:rgba(36,224,200,.32);
}
.drawer-actions{display:grid;gap:12px;}
.drawer-actions .btn{width:100%;}
.drawer-info{font-size:13px;color:var(--text-3);line-height:1.9;border-top:1px solid var(--line);padding-top:16px;}

/* ===== Skeleton ===== */
.skeleton{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.sk-card{padding:0 0 20px;border-radius:var(--r-lg);overflow:hidden;background:var(--glass);border:1px solid var(--glass-line);}
.sk-block{background:rgba(255,255,255,.06);border-radius:var(--r-sm);}
.sk-thumb{aspect-ratio:16/10;border-radius:0;}
.sk-line{height:12px;margin:16px 20px 0;}
.sk-line.short{width:52%;}

/* ===== Responsive ===== */
@media (max-width:1080px){
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .sidebar{position:static;grid-template-columns:repeat(2,minmax(0,1fr));}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .skeleton{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:900px){
  .nav-channels{display:none;}
  .search{display:none;}
  .header-tools .btn-ghost{display:none;}
  .burger{display:grid;}
  .article-head h1{font-size:32px;max-width:none;}
}
@media (max-width:768px){
  body{font-size:16px;line-height:1.75;}
  .container{padding:0 18px;}
  .site-header{height:60px;}
  :root{--header-h:60px;}
  .brand-text .full{display:none;}
  .brand-text .short{display:inline;}
  .article-wrap{padding:32px 0 64px;}
  .article-head h1{font-size:28px;}
  .lead{font-size:16px;}
  .article-body{font-size:16px;line-height:1.78;}
  .article-body h2{font-size:23px;margin-top:38px;}
  .article-body h3{font-size:19px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .sidebar{grid-template-columns:minmax(0,1fr);}
  .section{padding:64px 0;}
  .section-head h2{font-size:25px;}
  .cta-band{padding:34px 24px;}
  .cta-band h2{font-size:23px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .faq-q{padding:18px 18px;font-size:16px;}
  .faq-a .inner{padding:0 18px 20px;}
}
@media (max-width:560px){
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .skeleton{grid-template-columns:minmax(0,1fr);}
  .cover-figure img{aspect-ratio:16/10;}
}
@media (max-width:480px){
  .article-head h1{font-size:24px;}
  .btn{width:100%;}
  .cta-action{width:100%;}
  .footer-form{flex-wrap:wrap;}
  .footer-form .btn{width:auto;}
}

/* roulang page: category1 */
:root{
  --bg:#060B16;
  --surface:#0A111F;
  --surface-2:#08101C;
  --glass:rgba(255,255,255,.05);
  --glass-strong:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.08);
  --accent:#24E0C8;
  --accent-deep:#14B9A5;
  --accent-soft:#7CF3E4;
  --orange:#FF8A3D;
  --orange-deep:#E4711F;
  --text:#EAF2FB;
  --text-2:#A7B7CC;
  --text-3:#6F8199;
  --ok:#35D07F;
  --warn:#FF5D5D;
  --info:#5AA9FF;
  --r-lg:18px;
  --r-md:12px;
  --r-sm:6px;
  --r-pill:999px;
  --shadow-card:0 10px 36px rgba(3,8,18,.5);
  --shadow-hover:0 18px 48px rgba(3,8,18,.65);
  --shadow-accent:0 0 0 1px rgba(36,224,200,.45),0 10px 28px rgba(36,224,200,.26);
  --shadow-orange:0 10px 28px rgba(255,138,61,.30);
  --container:1200px;
  --sec-y:104px;
  --num:"Inter","Barlow",system-ui,-apple-system,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:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:var(--accent);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
svg{width:100%;height:100%;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(36,224,200,.28);color:#fff;}

.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
.glass{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.04em;color:var(--accent-soft);
  text-transform:none;
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--accent),transparent);}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  font-size:16px;font-weight:600;letter-spacing:0;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .24s ease,background .24s ease,color .2s ease,border-color .2s ease;
}
.btn svg{width:18px;height:18px;flex:none;}
.btn-primary{
  background:linear-gradient(135deg,var(--orange),var(--orange-deep));
  color:#1A0C02;box-shadow:var(--shadow-orange);
}
.btn-primary:hover{color:#1A0C02;transform:translateY(-2px);box-shadow:0 16px 36px rgba(255,138,61,.42);}
.btn-ghost{
  background:rgba(255,255,255,.03);color:var(--accent-soft);
  border-color:rgba(36,224,200,.42);
}
.btn-ghost:hover{
  color:var(--accent-soft);background:rgba(36,224,200,.12);
  border-color:var(--accent);transform:translateY(-2px);
}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 2px;
  font-size:15px;font-weight:600;color:var(--accent);border-bottom:1px solid transparent;
}
.btn-text:hover{border-bottom-color:var(--accent);color:var(--accent-soft);}
.btn-sm{height:40px;padding:0 16px;font-size:15px;}
.btn:active{transform:translateY(1px);box-shadow:none;}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(6,11,22,.62);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .28s ease,border-color .28s ease,backdrop-filter .28s ease;
}
.site-header.is-scrolled{
  background:rgba(6,11,22,.86);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom-color:rgba(36,224,200,.28);
  box-shadow:0 12px 30px rgba(3,8,18,.55);
}
.header-inner{
  height:72px;display:flex;align-items:center;gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:34px;height:34px;flex:none;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  color:var(--accent);
  background:linear-gradient(140deg,rgba(36,224,200,.22),rgba(36,224,200,.05));
  border:1px solid rgba(36,224,200,.38);
  box-shadow:0 0 18px rgba(36,224,200,.22);
}
.brand-mark svg{width:19px;height:19px;}
.brand-text{font-size:18px;font-weight:700;color:var(--text);letter-spacing:0;}
.brand-text .short{display:none;}
.brand:hover .brand-text{color:var(--accent-soft);}
.nav-channels{
  display:flex;align-items:center;gap:6px;flex:1 1 auto;min-width:0;
  overflow-x:auto;scrollbar-width:none;
}
.nav-channels::-webkit-scrollbar{display:none;}
.nav-channels a{
  position:relative;flex:none;padding:10px 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--text-2);
  transition:color .2s ease;
}
.nav-channels a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--accent),var(--accent-soft));
  box-shadow:0 0 12px rgba(36,224,200,.7);
  opacity:0;transform:scaleX(.4);transform-origin:left;
  transition:opacity .22s ease,transform .22s ease;
}
.nav-channels a:hover{color:var(--text);}
.nav-channels a:hover::after{opacity:.6;transform:scaleX(1);}
.nav-channels a.is-active{color:var(--accent);}
.nav-channels a.is-active::after{opacity:1;transform:scaleX(1);}
.header-tools{display:flex;align-items:center;gap:12px;flex:none;}
.search{
  display:flex;align-items:center;gap:8px;width:220px;height:40px;padding:0 14px;
  border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.search svg{width:16px;height:16px;flex:none;color:var(--text-3);stroke-width:1.9;}
.search input{
  width:100%;border:0;background:none;color:var(--text);font-size:14px;outline:none;
}
.search input::placeholder{color:var(--text-3);}
.search:focus-within{
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(36,224,200,.14);
  transform:scale(1.01);
}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;
  align-items:center;justify-content:center;color:var(--text);
  border:1px solid var(--line);background:var(--glass);
}
.burger svg{width:22px;height:22px;}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;z-index:90;background:rgba(3,7,15,.72);
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;z-index:95;width:320px;max-width:86vw;height:100%;
  padding:22px 22px 32px;overflow-y:auto;
  background:linear-gradient(180deg,#0A111F,#060B16);
  border-left:1px solid var(--line);
  transform:translateX(104%);transition:transform .32s cubic-bezier(.4,0,.2,1);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-head span{font-size:16px;font-weight:700;}
.drawer-close{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--glass);color:var(--text);
}
.drawer-close svg{width:20px;height:20px;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:22px;}
.drawer-nav a{
  padding:13px 14px;border-radius:var(--r-md);font-size:16px;color:var(--text-2);
  border:1px solid transparent;
}
.drawer-nav a:hover{color:var(--text);background:var(--glass);}
.drawer-nav a.is-active{color:var(--accent);border-color:rgba(36,224,200,.32);background:rgba(36,224,200,.08);}
.drawer-actions{display:flex;flex-direction:column;gap:12px;margin-bottom:22px;}
.drawer-actions .btn{width:100%;}
.drawer-info{font-size:14px;color:var(--text-3);line-height:1.9;border-top:1px solid var(--line-soft);padding-top:18px;}

/* ---------- 分类 Banner ---------- */
.cat-banner{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line-soft);
}
.cat-banner-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  filter:saturate(115%);
}
.cat-banner-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(760px 320px at 18% 0%,rgba(36,224,200,.16),transparent 62%),
    linear-gradient(180deg,rgba(6,11,22,.80),rgba(6,11,22,.94) 62%,var(--bg));
}
.cat-banner::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  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:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 78%);
}
.banner-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  gap:40px;align-items:end;
  min-height:280px;padding-top:52px;padding-bottom:44px;
}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:18px;
}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:var(--text-3);opacity:.7;}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-sm);
  font-size:12px;font-weight:600;
  background:rgba(36,224,200,.14);color:var(--accent-soft);
  border:1px solid rgba(36,224,200,.30);
}
.cat-banner h1{
  margin:16px 0 14px;
  font-size:46px;line-height:1.22;font-weight:800;letter-spacing:0;
}
.cat-banner h1 em{font-style:normal;color:var(--accent);}
.banner-desc{font-size:17px;color:var(--text-2);max-width:640px;}
.banner-meta{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;
}
.chip{
  display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 14px;
  border-radius:var(--r-pill);font-size:13px;color:var(--text-2);
  background:var(--glass);border:1px solid var(--line);
}
.chip.is-on{color:#04211D;background:linear-gradient(135deg,var(--accent),var(--accent-deep));border-color:transparent;font-weight:600;}
.banner-card{padding:24px 24px 22px;}
.banner-card h2{font-size:17px;font-weight:700;margin-bottom:14px;color:var(--text);}
.banner-card li{
  display:flex;gap:10px;align-items:flex-start;
  padding:11px 0;font-size:14.5px;color:var(--text-2);
  border-top:1px solid var(--line-soft);
}
.banner-card li:first-child{border-top:0;padding-top:0;}
.banner-card li b{color:var(--text);font-weight:600;}
.dot{
  width:8px;height:8px;border-radius:50%;flex:none;margin-top:9px;
  background:var(--accent);box-shadow:0 0 10px rgba(36,224,200,.8);
}
.dot.o{background:var(--orange);box-shadow:0 0 10px rgba(255,138,61,.8);}

/* ---------- 主体布局 ---------- */
.cat-main{padding:var(--sec-y) 0 0;}
.cat-layout{
  display:grid;grid-template-columns:262px minmax(0,1fr);gap:48px;align-items:start;
}
.anchor-nav{position:sticky;top:104px;}
.anchor-nav h2{
  font-size:13px;font-weight:600;color:var(--accent-soft);
  letter-spacing:.06em;margin-bottom:14px;
}
.anchor-list{display:flex;flex-direction:column;gap:2px;}
.anchor-list a{
  position:relative;display:block;padding:11px 14px 11px 18px;
  font-size:15px;color:var(--text-2);border-radius:var(--r-md);
  border-left:2px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.anchor-list a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:2px;height:0;border-radius:2px;
  background:linear-gradient(180deg,var(--accent),var(--accent-deep));
  box-shadow:0 0 10px rgba(36,224,200,.75);
  transition:height .24s ease;
}
.anchor-list a:hover{color:var(--text);background:var(--glass);}
.anchor-list a.is-current{color:var(--accent);background:rgba(36,224,200,.08);}
.anchor-list a.is-current::before{height:70%;}
.anchor-extra{margin-top:24px;padding:18px 18px 20px;}
.anchor-extra p{font-size:13.5px;color:var(--text-3);line-height:1.85;}
.anchor-extra .btn{margin-top:14px;width:100%;}

.content-sec{padding-bottom:64px;}
.content-sec + .content-sec{border-top:1px solid var(--line-soft);padding-top:64px;}
.sec-head{margin-bottom:26px;}
.sec-head h2{font-size:34px;line-height:1.28;font-weight:700;margin-top:12px;}
.sec-head p.sub{margin-top:12px;color:var(--text-2);font-size:16px;}
.content-sec > p{
  color:var(--text-2);font-size:17px;line-height:1.9;margin-bottom:18px;
}
.content-sec > p strong{color:var(--text);font-weight:600;}
.note-line{
  margin:26px 0 0;padding:16px 20px;border-left:3px solid var(--accent);
  background:rgba(36,224,200,.07);border-radius:0 var(--r-md) var(--r-md) 0;
  font-size:15px;color:var(--text-2);
}
.note-line.warn{border-left-color:var(--orange);background:rgba(255,138,61,.08);}

/* 要点卡 */
.point-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:28px;
}
.point-card{
  padding:22px;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--line);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.point-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(36,224,200,.36);}
.point-card .idx{
  font-family:var(--num);font-size:13px;font-weight:700;color:var(--accent);
  letter-spacing:.06em;
}
.point-card h3{font-size:19px;font-weight:600;margin:8px 0 8px;}
.point-card p{font-size:14.5px;color:var(--text-2);line-height:1.85;}

/* 步骤 */
.step-list{margin-top:28px;display:flex;flex-direction:column;gap:14px;}
.step-row{
  display:grid;grid-template-columns:56px minmax(0,1fr) auto;gap:18px;align-items:center;
  padding:20px 22px;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--line);
  transition:border-color .22s ease,transform .22s ease;
}
.step-row:hover{border-color:rgba(36,224,200,.34);transform:translateX(3px);}
.step-num{
  font-family:var(--num);font-size:26px;font-weight:700;color:var(--accent);
  line-height:1;letter-spacing:-.02em;
}
.step-row h3{font-size:18px;font-weight:600;margin-bottom:4px;}
.step-row p{font-size:14.5px;color:var(--text-2);line-height:1.8;}
.step-time{
  font-family:var(--num);font-size:13px;color:var(--text-3);
  padding:6px 12px;border-radius:var(--r-pill);border:1px solid var(--line-soft);
  white-space:nowrap;
}

/* 对比表 */
.table-scroll{
  margin-top:26px;overflow-x:auto;border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow-card);
}
table.compare{width:100%;min-width:620px;border-collapse:collapse;font-size:15px;}
table.compare th,table.compare td{
  padding:16px 20px;text-align:left;vertical-align:top;
  border-bottom:1px solid var(--line-soft);
}
table.compare thead th{
  background:rgba(36,224,200,.12);color:var(--accent-soft);
  font-size:14px;font-weight:600;white-space:nowrap;
}
table.compare tbody tr:nth-child(even){background:rgba(255,255,255,.025);}
table.compare tbody td{color:var(--text-2);}
table.compare tbody td:first-child{color:var(--text);font-weight:600;white-space:nowrap;}
table.compare tbody tr:last-child td{border-bottom:0;}
.table-hint{margin-top:12px;font-size:13px;color:var(--text-3);}

/* 图文块 */
.figure-block{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:26px;align-items:center;margin-top:28px;
}
.figure-block .shot{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  background:var(--surface-2);aspect-ratio:16/10;
  box-shadow:var(--shadow-card);
}
.figure-block .shot img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.figure-block .shot:hover img{transform:scale(1.03);}
.figure-block h3{font-size:22px;font-weight:600;margin-bottom:12px;}
.figure-block p{font-size:15.5px;color:var(--text-2);}
.mini-list{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.mini-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);}
.check{
  width:18px;height:18px;flex:none;margin-top:5px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(36,224,200,.5);color:var(--accent);
}
.check svg{width:11px;height:11px;stroke-width:2.6;}

/* FAQ */
.faq-wrap{margin-top:24px;border-radius:var(--r-lg);overflow:hidden;
  background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
}
.faq-item + .faq-item{border-top:1px solid var(--line-soft);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;text-align:left;font-size:17px;font-weight:600;color:var(--text);
  transition:color .2s ease,background .2s ease;
}
.faq-q:hover{color:var(--accent-soft);background:rgba(255,255,255,.025);}
.faq-sign{
  position:relative;width:22px;height:22px;flex:none;border-radius:50%;
  border:1px solid rgba(36,224,200,.45);
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--accent);
  transform:translate(-50%,-50%);transition:transform .24s cubic-bezier(.4,0,.2,1),opacity .24s ease;
}
.faq-sign::before{width:10px;height:1.6px;}
.faq-sign::after{width:1.6px;height:10px;}
.faq-item.is-open .faq-sign::after{transform:translate(-50%,-50%) scaleY(0);opacity:0;}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .24s cubic-bezier(.4,0,.2,1);
}
.faq-a-inner{padding:0 24px 22px;font-size:15.5px;color:var(--text-2);line-height:1.9;}
.faq-a-inner strong{color:var(--text);}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;margin:96px 0 var(--sec-y);
  padding:56px 48px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;inset:-40% -10% auto -10%;height:280px;
  background:radial-gradient(520px 240px at 22% 30%,rgba(36,224,200,.18),transparent 70%),
             radial-gradient(420px 220px at 82% 20%,rgba(255,138,61,.14),transparent 72%);
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:30px;font-weight:700;line-height:1.35;}
.cta-band p{margin-top:10px;color:var(--text-2);font-size:15.5px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid rgba(36,224,200,.18);
  background:linear-gradient(180deg,var(--surface-2),#050A13);
  box-shadow:0 -1px 0 rgba(36,224,200,.18),0 -18px 40px rgba(3,8,18,.5);
  padding:72px 0 32px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.35fr;gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{font-size:17px;font-weight:700;}
.footer-desc{font-size:14.5px;color:var(--text-2);line-height:1.9;max-width:340px;}
.footer-contact{margin-top:16px;font-size:14px;color:var(--text-3);line-height:2;}
.footer-col h4{font-size:15px;font-weight:600;color:var(--accent);margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:14px;color:var(--text-2);}
.footer-col ul a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px;}
.footer-form{display:flex;gap:10px;flex-wrap:wrap;}
.footer-form input{
  flex:1 1 170px;min-width:0;height:40px;padding:0 14px;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--line);color:var(--text);font-size:14px;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.footer-form input::placeholder{color:var(--text-3);}
.footer-form input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(36,224,200,.14);}
.footer-note{margin-top:14px;font-size:13px;color:var(--text-3);line-height:1.85;}
.footer-bottom{
  margin-top:48px;padding-top:26px;
  border-top:1px solid rgba(36,224,200,.16);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:var(--text-3);
}
.to-top{color:var(--text-2);border-bottom:1px solid transparent;}
.to-top:hover{color:var(--accent);border-bottom-color:var(--accent);}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .container{max-width:1140px;}
}
@media (max-width:1024px){
  :root{--sec-y:84px;}
  .search{display:none;}
  .cat-banner h1{font-size:38px;}
  .cat-layout{grid-template-columns:1fr;gap:34px;}
  .anchor-nav{position:static;top:auto;}
  .anchor-list{
    flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:6px;
    scrollbar-width:none;
  }
  .anchor-list::-webkit-scrollbar{display:none;}
  .anchor-list a{
    flex:none;border-left:0;border:1px solid var(--line);border-radius:var(--r-pill);
    padding:9px 16px;font-size:14px;background:var(--glass);
  }
  .anchor-list a::before{display:none;}
  .anchor-list a.is-current{border-color:rgba(36,224,200,.5);background:rgba(36,224,200,.12);}
  .anchor-extra{display:none;}
  .banner-grid{grid-template-columns:1fr;gap:28px;align-items:start;min-height:0;padding-top:40px;padding-bottom:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:768px){
  body{font-size:16px;line-height:1.75;}
  .container{padding:0 18px;}
  .header-inner{height:60px;gap:12px;}
  .nav-channels{display:none;}
  .header-tools .btn-ghost{display:none;}
  .burger{display:flex;}
  .brand-text{font-size:16px;}
  .brand-text .full{display:none;}
  .brand-text .short{display:inline;}
  .cat-banner h1{font-size:31px;}
  .banner-desc{font-size:15.5px;}
  .sec-head h2{font-size:24px;}
  .content-sec > p{font-size:16px;}
  .point-grid{grid-template-columns:1fr;}
  .step-row{grid-template-columns:44px minmax(0,1fr);gap:14px;padding:18px;}
  .step-time{grid-column:2;justify-self:start;}
  .figure-block{grid-template-columns:1fr;}
  .cta-band{padding:34px 24px;margin:64px 0 72px;}
  .cta-band h2{font-size:23px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .faq-q{font-size:16px;padding:17px 18px;}
  .faq-a-inner{padding:0 18px 20px;font-size:15px;}
  .site-footer{padding:56px 0 28px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
}
@media (max-width:520px){
  .cat-banner h1{font-size:27px;}
  .banner-card{padding:20px;}
  .step-num{font-size:22px;}
  .point-card{padding:18px;}
  table.compare{font-size:14px;}
  table.compare th,table.compare td{padding:13px 14px;}
}

/* roulang page: category2 */
:root{
  --bg:#060B16;
  --bg-2:#0A111F;
  --bg-3:#08101C;
  --panel:rgba(255,255,255,0.05);
  --panel-2:rgba(255,255,255,0.035);
  --panel-border:rgba(255,255,255,0.10);
  --panel-highlight:inset 0 1px 0 rgba(255,255,255,0.08);
  --accent:#24E0C8;
  --accent-dark:#14B9A5;
  --accent-soft:#7CF3E4;
  --warm:#FF8A3D;
  --warm-dark:#E4711F;
  --text:#EAF2FB;
  --text-2:#A7B7CC;
  --text-3:#6F8199;
  --line:rgba(255,255,255,0.08);
  --success:#35D07F;
  --danger:#FF5D5D;
  --info:#5AA9FF;
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:6px;
  --radius-pill:999px;
  --shadow-card:0 10px 36px rgba(3,8,18,0.5);
  --shadow-card-hover:0 18px 48px rgba(3,8,18,0.65);
  --shadow-accent:0 0 0 1px rgba(36,224,200,0.45),0 10px 28px rgba(36,224,200,0.26);
  --shadow-warm:0 10px 30px rgba(255,138,61,0.30);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","Barlow","Helvetica Neue",Arial,sans-serif;
  --header-h:72px;
  --section-gap:110px;
}
*,*::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-cn);
  font-size:17px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
body.drawer-open{overflow:hidden;}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:1220px;margin:0 auto;padding:0 24px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform .18s ease,box-shadow .24s ease,background-color .24s ease,color .24s ease,border-color .24s ease;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-lg{height:54px;padding:0 30px;font-size:16px;}
.btn-primary{
  background:linear-gradient(135deg,var(--warm) 0%,var(--warm-dark) 100%);
  color:#1A0E04;box-shadow:var(--shadow-warm);
}
.btn-primary:hover{background:linear-gradient(135deg,#FF9C58 0%,var(--warm) 100%);box-shadow:0 14px 36px rgba(255,138,61,0.42);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 18px rgba(255,138,61,0.28);}
.btn-ghost{
  color:var(--accent-soft);
  border:1px solid rgba(36,224,200,0.45);
  background:rgba(36,224,200,0.04);
}
.btn-ghost:hover{background:rgba(36,224,200,0.12);border-color:var(--accent);color:var(--text);}
.btn-ghost:active{transform:translateY(1px);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--accent);font-size:14px;font-weight:600;
  border-bottom:1px solid transparent;transition:border-color .2s ease,color .2s ease;
}
.btn-text:hover{border-bottom-color:var(--accent);color:var(--accent-soft);}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  height:var(--header-h);
  background:rgba(6,11,22,0.72);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,0.06);
  transition:background .3s ease,border-color .3s ease;
}
.site-header.is-scrolled{
  background:rgba(6,11,22,0.86);
  border-bottom-color:rgba(36,224,200,0.30);
  box-shadow:0 6px 28px rgba(2,6,14,0.6);
}
.header-inner{display:flex;align-items:center;gap:20px;height:var(--header-h);}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(36,224,200,0.22),rgba(36,224,200,0.05));
  border:1px solid rgba(36,224,200,0.45);
  box-shadow:0 0 18px rgba(36,224,200,0.22);
}
.brand-mark svg{width:19px;height:19px;fill:none;stroke:var(--accent);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{font-size:18px;font-weight:700;color:var(--text);letter-spacing:0;}
.brand-text .short{display:none;}
.nav-channels{
  display:flex;align-items:center;gap:4px;flex:1;min-width:0;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.nav-channels::-webkit-scrollbar{display:none;}
.nav-channels a{
  position:relative;display:inline-flex;align-items:center;
  padding:8px 13px;border-radius:var(--radius-pill);
  font-size:15px;color:var(--text-2);white-space:nowrap;
  transition:color .22s ease,background-color .22s ease;
}
.nav-channels a::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--accent),rgba(36,224,200,0));
  box-shadow:0 0 10px rgba(36,224,200,0.7);
  opacity:0;transition:opacity .24s ease;
}
.nav-channels a:hover{color:var(--text);background:rgba(255,255,255,0.04);}
.nav-channels a:hover::after{opacity:.6;}
.nav-channels a.is-active{color:var(--accent);font-weight:600;}
.nav-channels a.is-active::after{opacity:1;}
.header-tools{display:flex;align-items:center;gap:12px;flex-shrink:0;margin-left:auto;}
.search{
  position:relative;display:flex;align-items:center;gap:8px;
  width:220px;height:40px;padding:0 16px;
  border-radius:var(--radius-pill);
  background:var(--panel);
  border:1px solid var(--panel-border);
  transition:border-color .24s ease,box-shadow .24s ease,transform .24s ease;
}
.search svg{width:16px;height:16px;flex-shrink:0;fill:none;stroke:var(--text-3);stroke-width:1.8;stroke-linecap:round;}
.search input{
  width:100%;background:none;border:none;outline:none;
  font-size:14px;color:var(--text);
}
.search input::placeholder{color:var(--text-3);}
.search:focus-within{
  border-color:var(--accent);
  box-shadow:0 0 0 1px rgba(36,224,200,0.35),0 8px 24px rgba(36,224,200,0.16);
  transform:scale(1.01);
}
.search:focus-within svg{stroke:var(--accent);}
.burger{
  display:none;width:44px;height:44px;border-radius:var(--radius-md);
  align-items:center;justify-content:center;
  border:1px solid var(--panel-border);background:var(--panel);
}
.burger svg{width:20px;height:20px;fill:none;stroke:var(--text);stroke-width:1.8;stroke-linecap:round;}

/* ============ 抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;z-index:110;
  background:rgba(3,7,14,0.72);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:120;
  width:min(86vw,340px);padding:24px 22px 32px;
  background:linear-gradient(180deg,#0A111F 0%,#060B16 100%);
  border-left:1px solid var(--panel-border);
  transform:translateX(102%);
  transition:transform .34s cubic-bezier(0.4,0,0.2,1);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:40px;height:40px;border-radius:var(--radius-md);display:grid;place-items:center;
  border:1px solid var(--panel-border);background:var(--panel);color:var(--text);font-size:22px;line-height:1;
}
.drawer-nav{display:flex;flex-direction:column;gap:4px;padding:18px 0;}
.drawer-nav a{
  padding:13px 14px;border-radius:var(--radius-md);
  font-size:16px;color:var(--text-2);transition:background-color .22s ease,color .22s ease;
}
.drawer-nav a:hover{background:rgba(255,255,255,0.05);color:var(--text);}
.drawer-nav a.is-active{color:var(--accent);background:rgba(36,224,200,0.10);font-weight:600;}
.drawer-actions{display:flex;flex-direction:column;gap:12px;padding-top:6px;}
.drawer-meta{padding-top:22px;font-size:14px;color:var(--text-3);line-height:1.9;border-top:1px solid var(--line);margin-top:22px;}

/* ============ 页头 Banner ============ */
.banner{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
  background-color:var(--bg-2);
}
.banner-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.34;
}
.banner::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(760px 320px at 50% 0%,rgba(36,224,200,0.16),transparent 70%),
    linear-gradient(180deg,rgba(6,11,22,0.62) 0%,rgba(6,11,22,0.94) 78%);
}
.banner-inner{
  position:relative;z-index:2;
  padding:74px 0 62px;text-align:center;
}
.breadcrumb{
  display:flex;justify-content:center;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:22px;
}
.breadcrumb a{color:var(--text-2);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px;}
.banner h1{
  font-size:46px;line-height:1.24;font-weight:700;
  max-width:920px;margin:0 auto;
}
.banner h1 em{font-style:normal;color:var(--accent);}
.banner-lead{
  max-width:720px;margin:20px auto 0;
  font-size:17px;color:var(--text-2);line-height:1.85;
}
.banner-actions{display:flex;justify-content:center;gap:14px;margin-top:32px;flex-wrap:wrap;}
.banner-facts{
  display:flex;justify-content:center;gap:0;margin-top:38px;flex-wrap:wrap;
}
.banner-facts span{
  padding:0 26px;font-size:14px;color:var(--text-2);
  border-right:1px solid var(--line);
}
.banner-facts span:last-child{border-right:none;}
.banner-facts b{font-family:var(--font-num);font-size:19px;color:var(--accent);font-weight:700;margin-right:6px;letter-spacing:-0.02em;}

/* ============ 通用板块 ============ */
.section{padding:var(--section-gap) 0;}
.section-alt{background:var(--bg-3);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.is-center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--accent);letter-spacing:0;
  padding:5px 12px;border-radius:var(--radius-sm);
  background:rgba(36,224,200,0.10);
  border:1px solid rgba(36,224,200,0.26);
  margin-bottom:16px;
}
.section-head h2{font-size:36px;line-height:1.3;font-weight:700;letter-spacing:0;}
.section-head p{margin-top:16px;color:var(--text-2);font-size:16px;line-height:1.85;}

/* ============ 宫格卡片 2x2 ============ */
.grid-quad{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.quad-card{
  position:relative;padding:28px;
  border-radius:var(--radius-lg);
  background:var(--panel);
  border:1px solid var(--panel-border);
  box-shadow:var(--shadow-card),var(--panel-highlight);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.quad-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover),var(--panel-highlight);border-color:rgba(36,224,200,0.32);}
.quad-icon{
  width:46px;height:46px;border-radius:var(--radius-md);display:grid;place-items:center;
  background:rgba(36,224,200,0.10);border:1px solid rgba(36,224,200,0.28);
  margin-bottom:18px;
}
.quad-icon svg{width:22px;height:22px;fill:none;stroke:var(--accent);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.quad-card h3{font-size:21px;font-weight:600;margin-bottom:10px;}
.quad-card p{color:var(--text-2);font-size:15.5px;line-height:1.85;}
.quad-index{
  position:absolute;top:24px;right:26px;
  font-family:var(--font-num);font-size:13px;font-weight:700;
  color:var(--text-3);letter-spacing:.08em;
}

/* ============ 时间轴 ============ */
.timeline{position:relative;max-width:900px;margin:0 auto;padding-left:6px;}
.timeline::before{
  content:"";position:absolute;left:33px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,rgba(36,224,200,0.55),rgba(36,224,200,0.06));
}
.tl-item{position:relative;display:flex;gap:26px;padding:0 0 34px 0;}
.tl-item:last-child{padding-bottom:0;}
.tl-num{
  position:relative;z-index:2;flex-shrink:0;
  width:56px;height:56px;border-radius:var(--radius-md);
  display:grid;place-items:center;
  font-family:var(--font-num);font-size:19px;font-weight:700;letter-spacing:-0.02em;
  color:var(--accent);
  background:#0B1424;
  border:1px solid rgba(36,224,200,0.45);
  box-shadow:0 0 0 4px rgba(6,11,22,0.9),0 0 22px rgba(36,224,200,0.18);
}
.tl-body{
  flex:1;padding:24px 26px;border-radius:var(--radius-lg);
  background:var(--panel);border:1px solid var(--panel-border);
  box-shadow:var(--shadow-card),var(--panel-highlight);
  transition:border-color .26s ease,transform .26s ease;
}
.tl-body:hover{border-color:rgba(36,224,200,0.30);transform:translateX(2px);}
.tl-body h3{font-size:20px;font-weight:600;margin-bottom:10px;}
.tl-body p{color:var(--text-2);font-size:15.5px;line-height:1.85;}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--radius-sm);font-size:12px;line-height:1;
  background:rgba(36,224,200,0.10);color:var(--accent-soft);
  border:1px solid rgba(36,224,200,0.22);
}
.tag.is-warm{background:rgba(255,138,61,0.14);color:#FFC08C;border-color:rgba(255,138,61,0.30);}
.tag.is-info{background:rgba(90,169,255,0.12);color:#A9CDFF;border-color:rgba(90,169,255,0.28);}

/* ============ 图文交错 ============ */
.zig{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.zig + .zig{margin-top:72px;}
.zig.reverse .zig-media{order:2;}
.zig-media{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--panel-border);
  box-shadow:var(--shadow-card);
  aspect-ratio:16/10;
  background:linear-gradient(140deg,#0C1626,#0A111F);
}
.zig-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.zig-media:hover img{transform:scale(1.03);}
.zig-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,22,0.06),rgba(6,11,22,0.55));
  transition:opacity .3s ease;
}
.zig-media:hover::after{opacity:.85;}
.zig-body h3{font-size:26px;font-weight:600;margin:14px 0 14px;line-height:1.4;}
.zig-body p{color:var(--text-2);font-size:16px;line-height:1.9;}
.tick-list{margin-top:20px;display:flex;flex-direction:column;gap:12px;}
.tick-list li{display:flex;gap:10px;align-items:flex-start;font-size:15.5px;color:var(--text-2);}
.tick-list svg{width:18px;height:18px;flex-shrink:0;margin-top:5px;fill:none;stroke:var(--accent);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

/* ============ 清单要点区 ============ */
.check-panel{
  padding:38px;border-radius:var(--radius-lg);
  background:var(--panel);border:1px solid var(--panel-border);
  box-shadow:var(--shadow-card),var(--panel-highlight);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
}
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 40px;}
.check-grid li{
  display:flex;align-items:flex-start;gap:12px;
  padding:14px 0;border-bottom:1px dashed var(--line);
  font-size:16px;color:var(--text-2);
}
.check-grid li span{color:var(--text-3);font-family:var(--font-num);font-size:13px;margin-left:auto;padding-left:12px;white-space:nowrap;}
.check-mark{
  width:22px;height:22px;flex-shrink:0;margin-top:4px;
  border-radius:var(--radius-sm);display:grid;place-items:center;
  background:rgba(36,224,200,0.12);border:1px solid rgba(36,224,200,0.35);
}
.check-mark svg{width:13px;height:13px;fill:none;stroke:var(--accent);stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;
  padding:56px 48px;border-radius:var(--radius-lg);
  background:var(--panel);
  border:1px solid rgba(36,224,200,0.26);
  box-shadow:var(--shadow-card),var(--panel-highlight);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(520px 240px at 12% 0%,rgba(36,224,200,0.18),transparent 70%);
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:30px;font-weight:700;line-height:1.35;}
.cta-band p{margin-top:12px;color:var(--text-2);font-size:15.5px;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:var(--section-gap);
  border-top:1px solid rgba(36,224,200,0.18);
  background:linear-gradient(180deg,var(--bg-3) 0%,#050A13 100%);
  padding:68px 0 32px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{font-size:17px;font-weight:700;}
.footer-desc{color:var(--text-2);font-size:14.5px;line-height:1.9;}
.footer-contact{margin-top:18px;font-size:14px;color:var(--text-3);line-height:1.9;}
.footer-col h4{font-size:15px;font-weight:600;color:var(--accent);margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{font-size:14px;color:var(--text-2);transition:color .2s ease;}
.footer-col ul a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px;}
.footer-form{display:flex;gap:10px;flex-wrap:wrap;}
.footer-form input{
  flex:1;min-width:170px;height:40px;padding:0 14px;
  border-radius:var(--radius-md);
  background:rgba(255,255,255,0.04);
  border:1px solid var(--panel-border);
  font-size:14px;color:var(--text);outline:none;
  transition:border-color .24s ease,box-shadow .24s ease;
}
.footer-form input::placeholder{color:var(--text-3);}
.footer-form input:focus{border-color:var(--accent);box-shadow:0 0 0 1px rgba(36,224,200,0.35);}
.footer-note{margin-top:14px;font-size:13px;color:var(--text-3);line-height:1.85;}
.footer-bottom{
  margin-top:48px;padding-top:26px;
  border-top:1px solid rgba(36,224,200,0.18);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13.5px;color:var(--text-3);
}
.to-top{color:var(--text-2);transition:color .2s ease;}
.to-top:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px;}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  :root{--section-gap:88px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .banner h1{font-size:38px;}
  .section-head h2{font-size:30px;}
  .search{width:180px;}
}
@media (max-width:900px){
  .nav-channels{display:none;}
  .search{display:none;}
  .burger{display:inline-flex;}
  .header-tools .btn-ghost{display:none;}
}
@media (max-width:768px){
  :root{--section-gap:64px;--header-h:60px;}
  body{font-size:16px;line-height:1.75;}
  .container{padding:0 18px;}
  .brand-text{font-size:16px;}
  .brand-text .full{display:none;}
  .brand-text .short{display:inline;}
  .banner-inner{padding:52px 0 46px;}
  .banner h1{font-size:30px;line-height:1.3;}
  .banner-lead{font-size:15.5px;margin-top:16px;}
  .banner-facts{margin-top:28px;}
  .banner-facts span{padding:8px 16px;border-right:none;border-bottom:1px solid var(--line);}
  .banner-facts span:last-child{border-bottom:none;}
  .section-head h2{font-size:24px;}
  .grid-quad{grid-template-columns:1fr;}
  .zig{grid-template-columns:1fr;gap:24px;}
  .zig.reverse .zig-media{order:0;}
  .zig + .zig{margin-top:52px;}
  .zig-body h3{font-size:21px;}
  .check-panel{padding:26px 20px;}
  .check-grid{grid-template-columns:1fr;gap:0;}
  .timeline{padding-left:0;}
  .timeline::before{left:23px;}
  .tl-item{gap:16px;}
  .tl-num{width:44px;height:44px;font-size:16px;}
  .tl-body{padding:20px;}
  .cta-band{padding:34px 24px;flex-direction:column;align-items:flex-start;}
  .cta-band h2{font-size:23px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding:52px 0 28px;}
}
@media (max-width:480px){
  .banner h1{font-size:26px;}
  .banner-actions{flex-direction:column;}
  .banner-actions .btn{width:100%;}
  .quad-card{padding:22px;}
  .tl-body h3{font-size:18px;}
  .section-head h2{font-size:22px;}
}