/* roulang page: index */
:root{
  --bg-0:#05070E;
  --bg-1:#0A1020;
  --bg-2:#0F1730;
  --brand:#2BE0C8;
  --accent:#FFB23E;
  --violet:#7C5CFF;
  --success:#35D07F;
  --warn:#FF6B6B;
  --info:#4CC9F0;
  --text-1:#EAF2FF;
  --text-2:#A8B6D1;
  --text-3:#6E7C99;
  --glass:rgba(19,28,52,.55);
  --glass-strong:rgba(19,28,52,.82);
  --line:rgba(120,220,255,.14);
  --line-soft:rgba(120,220,255,.08);
  --radius:16px;
  --radius-sm:12px;
  --radius-badge:8px;
  --pill:999px;
  --shadow:0 20px 40px -20px rgba(0,0,0,.75);
  --glow:0 0 0 1px rgba(43,224,200,.35), 0 8px 24px -6px rgba(43,224,200,.45);
  --shell:236px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text-2);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(680px 480px at 76% -8%, rgba(43,224,200,.13), transparent 62%),
    linear-gradient(rgba(120,220,255,.042) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,220,255,.042) 1px, transparent 1px);
  background-size:auto, 46px 46px, 46px 46px;
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-sm);}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease);}
a:hover{color:#7CF3E1;}
h1,h2,h3,h4{color:var(--text-1);margin:0 0 .6em;font-weight:700;line-height:1.35;letter-spacing:.2px;}
h1{font-size:clamp(30px,4vw,44px);}
h2{font-size:clamp(24px,2.6vw,30px);}
h3{font-size:19px;font-weight:600;}
p{margin:0 0 1.2em;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(43,224,200,.28);color:#fff;}

/* ---------- 布局骨架 ---------- */
.shell{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--shell);
  background:var(--bg-1);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  gap:20px;
  padding:26px 16px 18px;
  z-index:70;
  transition:transform .24s var(--ease);
  overflow-y:auto;
}
.main{
  margin-left:var(--shell);
  min-height:100vh;
  display:flex;
  flex-direction:column;
}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
.section{padding:80px 0;}
.section-tight{padding:56px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
  flex-wrap:wrap;
}
.section-title{
  position:relative;
  padding-left:16px;
  font-size:clamp(22px,2.4vw,28px);
  margin:0 0 10px;
}
.section-title::before{
  content:"";
  position:absolute;
  left:0;top:.18em;bottom:.18em;
  width:3px;
  border-radius:2px;
  background:linear-gradient(180deg,var(--brand),rgba(43,224,200,.15));
}
.section-desc{color:var(--text-3);font-size:14px;max-width:640px;margin:0;}
.link-more{
  font-size:14px;
  color:var(--brand);
  white-space:nowrap;
  border-bottom:1px solid rgba(43,224,200,.28);
  padding-bottom:2px;
}
.link-more:hover{border-bottom-color:var(--brand);}

/* ---------- Logo 与导航 ---------- */
.logo{
  display:flex;
  align-items:center;
  gap:12px;
  padding:6px 8px 16px;
  border-bottom:1px solid var(--line-soft);
}
.logo-mark{
  flex:0 0 auto;
  width:42px;height:42px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(150deg,rgba(43,224,200,.22),rgba(124,92,255,.18));
  border:1px solid rgba(43,224,200,.35);
  color:var(--brand);
  font-size:20px;font-weight:700;
  box-shadow:0 0 18px -6px rgba(43,224,200,.6);
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;letter-spacing:.5px;}
.logo-text strong{font-size:17px;font-weight:700;color:var(--text-1);}
.logo-text em{font-style:normal;font-size:12px;letter-spacing:2px;color:var(--text-3);}
.nav{display:flex;flex-direction:column;gap:6px;flex:1 1 auto;}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  height:44px;
  padding:0 12px;
  border-radius:10px;
  color:var(--text-2);
  font-size:15px;
  border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.nav-item svg{flex:0 0 auto;width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.nav-item:hover{background:rgba(43,224,200,.08);color:var(--text-1);}
.nav-item.is-active{
  background:var(--glass);
  border-color:var(--line);
  color:var(--text-1);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.nav-item.is-active::before{
  content:"";
  position:absolute;left:-1px;top:10px;bottom:10px;
  width:3px;border-radius:0 3px 3px 0;
  background:var(--brand);
  box-shadow:0 0 12px rgba(43,224,200,.8);
}
.nav-item.is-active svg{color:var(--brand);filter:drop-shadow(0 0 6px rgba(43,224,200,.6));}
.shell-foot{
  font-size:12px;
  color:var(--text-3);
  line-height:1.6;
  margin:0;
  padding-top:12px;
  border-top:1px solid var(--line-soft);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 24px;
  border-radius:var(--pill);
  border:1px solid transparent;
  font-size:15px;
  font-weight:500;
  cursor:pointer;
  background:transparent;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,rgba(43,224,200,.95),rgba(43,224,200,.72));
  color:#05201C;
  font-weight:700;
  box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(43,224,200,.5),0 12px 30px -8px rgba(43,224,200,.6);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  border-color:rgba(120,220,255,.24);
  color:var(--text-1);
  background:rgba(19,28,52,.4);
}
.btn-ghost:hover{border-color:rgba(43,224,200,.55);color:var(--brand);background:rgba(19,28,52,.7);}
.btn-ghost:active{transform:translateY(1px);}
.btn-block{width:100%;}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;}
.btn-ico{display:none;}
.btn:disabled{opacity:.45;cursor:not-allowed;}

/* ---------- 顶部移动栏 ---------- */
.topbar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:56px;
  align-items:center;
  gap:12px;
  padding:0 14px;
  background:rgba(10,16,32,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  z-index:80;
}
.burger{
  width:40px;height:40px;
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(19,28,52,.6);
  cursor:pointer;
}
.burger span{display:block;width:16px;height:1.6px;background:var(--text-1);position:relative;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:16px;height:1.6px;background:var(--text-1);}
.burger span::before{top:-5px;}
.burger span::after{top:5px;}
.topbar-logo{
  flex:1 1 auto;
  display:flex;
  flex-direction:column;
  line-height:1.3;
  color:var(--text-1);
  font-size:13px;
  font-weight:700;
  letter-spacing:.4px;
}
.topbar-logo em{font-style:normal;font-size:11px;color:var(--text-3);font-weight:400;letter-spacing:1.6px;}
.overlay{
  position:fixed;inset:0;
  background:rgba(5,7,14,.72);
  backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;
  transition:opacity .22s var(--ease),visibility .22s var(--ease);
  z-index:65;
}
.overlay.is-open{opacity:1;visibility:visible;}

/* ---------- Hero ---------- */
.hero{
  display:grid;
  grid-template-columns:58% 42%;
  gap:24px;
  align-items:center;
  padding:88px 0 72px;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:1px;
  color:var(--brand);
  background:rgba(43,224,200,.1);
  border:1px solid rgba(43,224,200,.28);
  border-radius:var(--radius-badge);
  padding:6px 12px;
  margin-bottom:20px;
}
.hero h1{margin-bottom:20px;}
.hero-sub{
  font-size:17px;
  color:var(--text-2);
  max-width:560px;
  margin-bottom:32px;
}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:28px;}
.trust{display:flex;flex-wrap:wrap;gap:10px 22px;}
.trust-item{
  position:relative;
  padding-left:18px;
  font-size:13px;
  color:var(--text-3);
}
.trust-item::before{
  content:"";
  position:absolute;left:0;top:50%;
  width:7px;height:7px;
  margin-top:-3.5px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 8px rgba(43,224,200,.9);
}
.hero-visual{position:relative;min-height:360px;}
.hero-visual img{
  width:100%;
  height:360px;
  object-fit:cover;
  border-radius:var(--radius);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.hero-visual::after{
  content:"";
  position:absolute;inset:0;
  border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(5,7,14,.1),rgba(5,7,14,.72));
  pointer-events:none;
}
.float-card{
  position:absolute;
  z-index:2;
  min-width:132px;
  padding:14px 16px;
  border-radius:var(--radius-sm);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08);
  display:flex;
  flex-direction:column;
  gap:2px;
}
.float-card.fc-a{left:-18px;bottom:52px;}
.float-card.fc-b{right:-10px;top:38px;}
.float-num{
  font-size:26px;
  font-weight:700;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.float-label{font-size:12px;color:var(--text-3);}

/* ---------- 痛点提问 ---------- */
.ask-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px 24px;
}
.ask-item{
  display:flex;
  gap:16px;
  padding:22px 22px 22px 18px;
  border-radius:var(--radius);
  background:linear-gradient(150deg,rgba(19,28,52,.5),rgba(10,16,32,.35));
  border:1px solid var(--line-soft);
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.ask-item:hover{border-color:rgba(43,224,200,.4);transform:translateY(-2px);}
.ask-num{
  flex:0 0 auto;
  width:34px;height:34px;
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;
  border:1px solid rgba(43,224,200,.45);
  color:var(--brand);
  font-size:13px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
}
.ask-q{color:var(--text-1);font-size:16px;font-weight:600;margin:6px 0 6px;line-height:1.5;}
.ask-a{font-size:14px;color:var(--text-3);margin:0;}

/* ---------- Bento 方案卡 ---------- */
.bento{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:20px;
}
.card{
  position:relative;
  display:flex;
  flex-direction:column;
  padding:26px 24px;
  border-radius:var(--radius);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.card:hover{transform:translateY(-3px);border-color:rgba(43,224,200,.5);background:var(--glass-strong);}
.card-lg{grid-column:span 4;}
.card-sm{grid-column:span 2;}
.card-wide{grid-column:span 6;flex-direction:row;align-items:center;gap:24px;}
.card-wide .card-body{flex:1 1 auto;}
.card-icon{
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  border:1px solid rgba(43,224,200,.3);
  background:rgba(43,224,200,.08);
  color:var(--brand);
  margin-bottom:16px;
}
.card-icon svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.card h3{margin-bottom:10px;font-size:18px;}
.card p{font-size:14px;color:var(--text-2);margin:0 0 18px;}
.card-link{
  margin-top:auto;
  font-size:13px;
  color:var(--brand);
  align-self:flex-start;
  border-bottom:1px solid transparent;
}
.card-link:hover{border-bottom-color:var(--brand);}
.card-wide p{margin-bottom:0;}

/* ---------- 数据横条 ---------- */
.stats{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:52px 0;
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:32px;
  text-align:center;
}
.stat-num{
  font-size:40px;
  font-weight:700;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.stat-label{font-size:12px;color:var(--text-3);letter-spacing:.6px;}
.stats-note{
  margin:32px 0 0;
  font-size:13px;
  color:var(--text-3);
  text-align:center;
}

/* ---------- 内容列表 ---------- */
.post-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.post-card{
  display:flex;
  flex-direction:column;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  overflow:hidden;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.post-card:hover{transform:translateY(-3px);border-color:rgba(43,224,200,.5);box-shadow:var(--shadow);}
.post-thumb{
  position:relative;
  width:100%;
  aspect-ratio:16/9;
  overflow:hidden;
  background:linear-gradient(140deg,rgba(43,224,200,.14),rgba(124,92,255,.12));
}
.post-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.post-body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto;}
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:var(--radius-badge);
  font-size:12px;
  color:var(--accent);
  background:rgba(255,178,62,.12);
  border:1px solid rgba(255,178,62,.3);
  align-self:flex-start;
  margin-bottom:12px;
}
.post-title{
  font-size:17px;
  color:var(--text-1);
  margin:0 0 10px;
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-title a{color:inherit;}
.post-title a:hover{color:var(--brand);}
.post-sum{
  font-size:13px;
  color:var(--text-3);
  margin:0 0 18px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:14px;
  border-top:1px solid var(--line-soft);
  font-size:12px;
  color:var(--text-3);
}
.post-meta time{font-variant-numeric:tabular-nums;}
.empty-card{
  grid-column:1/-1;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:14px;
  padding:56px 24px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px dashed rgba(120,220,255,.24);
  text-align:center;
  color:var(--text-3);
  font-size:14px;
}
.empty-icon{
  width:52px;height:52px;
  display:flex;align-items:center;justify-content:center;
  border-radius:14px;
  border:1px solid var(--line);
  color:var(--brand);
}
.empty-icon svg{width:26px;height:26px;stroke:currentColor;fill:none;stroke-width:1.5;}

/* ---------- 分类导航编号列表 ---------- */
.cat-list{
  border-top:1px solid var(--line);
}
.cat-row{
  display:flex;
  align-items:center;
  gap:20px;
  padding:22px 6px;
  border-bottom:1px solid var(--line);
  color:var(--text-2);
  transition:background .2s var(--ease),padding-left .2s var(--ease);
}
.cat-row:hover{background:rgba(43,224,200,.05);padding-left:14px;color:var(--text-1);}
.cat-index{
  font-size:13px;
  color:var(--text-3);
  font-variant-numeric:tabular-nums;
  width:32px;
  flex:0 0 auto;
}
.cat-name{font-size:17px;font-weight:600;color:var(--text-1);flex:0 0 auto;}
.cat-desc{font-size:13px;color:var(--text-3);flex:1 1 auto;}
.cat-arrow{color:var(--brand);font-size:15px;flex:0 0 auto;}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  overflow:hidden;
  transition:border-color .2s var(--ease);
}
.faq-item:hover{border-color:rgba(43,224,200,.35);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--text-1);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";
  flex:0 0 auto;
  width:10px;height:10px;
  border-right:2px solid var(--brand);
  border-bottom:2px solid var(--brand);
  transform:rotate(45deg);
  transition:transform .2s var(--ease);
  margin-top:-4px;
}
.faq-item[open] summary::after{transform:rotate(225deg);margin-top:4px;}
.faq-answer{
  padding:0 22px 20px;
  font-size:15px;
  color:var(--text-2);
  margin:0;
}

/* ---------- 表单与隐私 ---------- */
.form-band{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:24px;
  align-items:start;
}
.panel{
  padding:28px 26px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px;}
.field label{font-size:13px;color:var(--text-2);}
.field input,.field textarea{
  width:100%;
  min-height:46px;
  padding:11px 14px;
  border-radius:var(--radius-sm);
  background:rgba(10,16,32,.7);
  border:1px solid rgba(120,220,255,.18);
  color:var(--text-1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{min-height:96px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(43,224,200,.16);
}
.field.has-error input,.field.has-error textarea{border-color:var(--warn);}
.error-tip{font-size:13px;color:var(--warn);margin:0;display:none;}
.field.has-error .error-tip{display:block;}
.form-tip{font-size:12px;color:var(--text-3);margin:14px 0 0;}
.success-card{
  display:none;
  align-items:flex-start;
  gap:12px;
  padding:16px 18px;
  margin-top:18px;
  border-radius:var(--radius-sm);
  background:rgba(53,208,127,.1);
  border:1px solid rgba(53,208,127,.35);
  font-size:14px;
  color:var(--text-1);
}
.success-card.is-visible{display:flex;}
.success-icon{
  flex:0 0 auto;
  width:22px;height:22px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:rgba(53,208,127,.2);
  color:var(--success);
  font-size:13px;
  font-weight:700;
}
.privacy-item{margin-bottom:16px;}
.privacy-item:last-child{margin-bottom:0;}
.privacy-item h4{font-size:14px;margin:0 0 6px;color:var(--text-1);}
.privacy-item p{font-size:13px;color:var(--text-3);margin:0;}
.privacy-note{font-size:13px;color:var(--text-3);}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  padding:36px 34px;
  border-radius:var(--radius);
  background:linear-gradient(120deg,rgba(43,224,200,.14),rgba(124,92,255,.1));
  border:1px solid rgba(43,224,200,.28);
  overflow:hidden;
  flex-wrap:wrap;
}
.cta-band h2{font-size:22px;margin:0 0 8px;}
.cta-band p{margin:0;font-size:14px;color:var(--text-2);}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;top:-70px;
  width:220px;height:220px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(43,224,200,.2),transparent 68%);
  pointer-events:none;
}

/* ---------- 弹层 ---------- */
.modal{
  position:fixed;inset:0;
  display:none;
  align-items:center;
  justify-content:center;
  padding:20px;
  background:rgba(5,7,14,.72);
  backdrop-filter:blur(4px);
  z-index:120;
}
.modal.is-open{display:flex;}
.modal-card{
  position:relative;
  width:480px;
  max-width:92vw;
  max-height:88vh;
  overflow-y:auto;
  padding:30px 28px;
  border-radius:var(--radius);
  background:var(--glass-strong);
  backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  animation:modalIn .2s var(--ease);
}
@keyframes modalIn{from{opacity:0;transform:scale(.96);}to{opacity:1;transform:scale(1);}}
.modal-close{
  position:absolute;
  top:14px;right:14px;
  width:32px;height:32px;
  display:flex;align-items:center;justify-content:center;
  border-radius:8px;
  border:1px solid var(--line);
  background:rgba(10,16,32,.6);
  color:var(--text-2);
  cursor:pointer;
  font-size:16px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.modal-close:hover{color:var(--brand);border-color:rgba(43,224,200,.5);}
.modal-card h3{font-size:20px;margin-bottom:8px;}
.modal-card p.modal-sub{font-size:13px;color:var(--text-3);margin-bottom:22px;}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-2);margin-bottom:20px;}
.check-row input{width:16px;height:16px;margin-top:3px;accent-color:#2BE0C8;}
.modal-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.footer{
  margin-top:auto;
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:56px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:32px;
}
.footer-col h4{font-size:14px;font-weight:600;margin:0 0 16px;color:var(--text-1);}
.footer-col p{font-size:13px;color:var(--text-3);margin:0 0 12px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:13px;color:var(--text-2);}
.footer-col a:hover{color:var(--brand);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .logo-mark{width:36px;height:36px;font-size:17px;}
.footer-brand strong{font-size:15px;color:var(--text-1);letter-spacing:.5px;}
.footer-bottom{
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid var(--line-soft);
  font-size:12px;
  color:var(--text-3);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px) and (min-width:1024px){
  :root{--shell:76px;}
  .logo{padding:6px 0 16px;justify-content:center;}
  .logo-text{display:none;}
  .nav-item{justify-content:center;padding:0;}
  .nav-label{display:none;}
  .shell .btn-block span.btn-text{display:none;}
  .shell .btn-block .btn-ico{display:inline;}
  .shell .btn-block{padding:0;width:48px;height:48px;min-height:48px;border-radius:50%;}
  .shell{align-items:center;}
  .nav{width:100%;}
  .shell-foot{display:none;}
}
@media (max-width:1023px){
  .shell{
    width:280px;
    transform:translateX(-100%);
    background:var(--bg-1);
    padding:26px 18px 20px;
    align-items:stretch;
  }
  .shell.is-open{transform:translateX(0);}
  .shell .logo-text{display:flex;}
  .shell .nav-item{justify-content:flex-start;padding:0 12px;}
  .shell .nav-label{display:inline;}
  .shell .btn-block{width:100%;height:auto;padding:0 24px;border-radius:var(--pill);min-height:48px;}
  .shell .btn-block span.btn-text{display:inline;}
  .shell .btn-block .btn-ico{display:none;}
  .shell-foot{display:block;}
  .topbar{display:flex;}
  .main{margin-left:0;padding-top:56px;}
  .hero{grid-template-columns:1fr;padding:48px 0 56px;}
  .hero-visual{min-height:220px;order:2;}
  .hero-visual img{height:220px;}
  .float-card.fc-a{left:10px;bottom:14px;}
  .float-card.fc-b{right:10px;top:14px;}
  .bento{grid-template-columns:repeat(2,1fr);}
  .card-lg,.card-sm,.card-wide{grid-column:span 2;}
  .card-wide{flex-direction:column;align-items:flex-start;}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .form-band{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .ask-grid{grid-template-columns:1fr;}
  .hero-cta .btn{width:100%;}
  .cat-desc{display:none;}
}
@media (max-width:520px){
  body{font-size:15px;}
  .container{padding:0 16px;}
  .hero{padding:36px 0 44px;}
  .hero-sub{font-size:15px;}
  .post-grid{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:24px 16px;}
  .stat-num{font-size:32px;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band{padding:26px 22px;}
  .float-card{min-width:112px;padding:10px 12px;}
  .float-num{font-size:22px;}
  .modal-card{padding:24px 20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --bg-0:#05070E;
  --bg-1:#0A1020;
  --bg-2:#0F1730;
  --brand:#2BE0C8;
  --accent:#FFB23E;
  --violet:#7C5CFF;
  --success:#35D07F;
  --warn:#FF6B6B;
  --info:#4CC9F0;
  --text-1:#EAF2FF;
  --text-2:#A8B6D1;
  --text-3:#6E7C99;
  --line:rgba(120,220,255,.14);
  --line-strong:rgba(120,220,255,.26);
  --glass:rgba(19,28,52,.55);
  --glass-2:rgba(19,28,52,.78);
  --radius:16px;
  --radius-sm:12px;
  --radius-xs:8px;
  --shadow-card:0 20px 40px -20px rgba(0,0,0,.75);
  --glow:0 0 0 1px rgba(43,224,200,.35),0 8px 24px -6px rgba(43,224,200,.45);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sidebar-w:236px;
}
*,*::before,*::after{box-sizing:border-box}
html,body{overflow-x:hidden}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-2);
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(120,220,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,220,255,.045) 1px,transparent 1px);
  background-size:56px 56px;
  pointer-events:none;
  z-index:0;
}
body::after{
  content:"";
  position:fixed;
  top:-180px;
  left:36%;
  width:760px;
  height:760px;
  background:radial-gradient(circle,rgba(43,224,200,.13),transparent 62%);
  filter:blur(18px);
  pointer-events:none;
  z-index:0;
}
body.is-locked{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
button,input,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

/* ---------- 侧边导航 ---------- */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  padding:24px 16px 20px;
  background:linear-gradient(180deg,rgba(10,16,32,.96),rgba(5,7,14,.98));
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  gap:20px;
  z-index:80;
  transition:transform .24s var(--ease);
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  padding:4px 6px 18px;
  border-bottom:1px solid var(--line);
}
.logo-mark{
  width:40px;height:40px;flex:none;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(140deg,rgba(43,224,200,.22),rgba(124,92,255,.18));
  border:1px solid var(--line-strong);
  color:var(--brand);
  font-size:18px;font-weight:700;
  box-shadow:0 0 18px -6px rgba(43,224,200,.6);
}
.brand-text{display:flex;flex-direction:column;line-height:1.3}
.brand-text strong{font-size:17px;font-weight:700;color:var(--text-1);letter-spacing:.5px}
.brand-text em{font-size:12px;font-style:normal;color:var(--text-3);letter-spacing:2px}
.nav{display:flex;flex-direction:column;gap:6px}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;
  border-radius:12px;
  font-size:15px;color:var(--text-2);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  border:1px solid transparent;
}
.nav-item svg{
  width:20px;height:20px;flex:none;
  fill:none;stroke:currentColor;stroke-width:1.7;
  stroke-linecap:round;stroke-linejoin:round;
}
.nav-item:hover{background:rgba(43,224,200,.08);color:var(--text-1)}
.nav-item.is-active{
  background:var(--glass-2);
  border-color:var(--line);
  color:var(--text-1);
}
.nav-item.is-active svg{filter:drop-shadow(0 0 6px rgba(43,224,200,.6))}
.nav-item.is-active::before{
  content:"";position:absolute;left:-16px;top:50%;
  transform:translateY(-50%);
  width:3px;height:22px;border-radius:2px;
  background:var(--brand);
  box-shadow:0 0 12px var(--brand);
}
.sidebar-cta{margin-top:auto;display:flex;flex-direction:column;gap:10px}
.sidebar-foot{font-size:12px;line-height:1.7;color:var(--text-3);padding:0 6px}

/* ---------- 移动顶栏 ---------- */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:56px;
  align-items:center;gap:12px;
  padding:0 14px;
  background:rgba(10,16,32,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
  z-index:70;
}
.burger{
  width:40px;height:40px;flex:none;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(19,28,52,.6);
  border:1px solid var(--line);
  border-radius:12px;
  cursor:pointer;
}
.burger span{display:block;width:16px;height:1.6px;background:var(--text-1);position:relative}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:16px;height:1.6px;background:var(--text-1);
}
.burger span::before{top:-5px}
.burger span::after{top:5px}
.topbar .brand-text strong{font-size:15px}
.topbar .brand-text em{font-size:10px;letter-spacing:1.5px}
.topbar-cta{margin-left:auto}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(135deg,rgba(43,224,200,.9),rgba(25,182,164,.9));
  color:#04120F;border:none;cursor:pointer;
}
.icon-btn svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(5,7,14,.72);
  backdrop-filter:blur(4px);
  opacity:0;pointer-events:none;
  transition:opacity .22s var(--ease);
  z-index:75;
}
.drawer-mask.is-on{opacity:1;pointer-events:auto}

/* ---------- 主体 ---------- */
.main{
  position:relative;
  z-index:1;
  margin-left:var(--sidebar-w);
  padding:32px 0 0;
}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);
  margin-bottom:20px;flex-wrap:wrap;
}
.breadcrumb a{color:var(--text-3);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .current{
  color:var(--text-1);
  max-width:min(420px,52vw);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ---------- 文章头 ---------- */
.article-head{
  background:linear-gradient(180deg,rgba(19,28,52,.78),rgba(15,23,48,.62));
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(140%);
  padding:32px;
  margin-bottom:28px;
}
.article-head h1{
  font-size:clamp(26px,3.4vw,40px);
  line-height:1.4;
  font-weight:700;
  color:var(--text-1);
  letter-spacing:.3px;
  margin:14px 0 16px;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.meta-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--text-3)}
.meta-time{font-variant-numeric:tabular-nums}
.meta-dot{color:var(--text-3)}
.article-cover{
  margin-top:24px;
  border-radius:var(--radius-sm);
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:16/9;
  background:var(--bg-2);
}
.article-cover img{width:100%;height:100%;object-fit:cover}

/* ---------- 布局：正文 + 侧栏 ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:32px;
  align-items:start;
  margin-bottom:64px;
}
.article-main{min-width:0}
.article-body{
  max-width:820px;
  font-size:16px;
  line-height:1.9;
  color:var(--text-2);
}
.article-body > * + *{margin-top:1.2em}
.article-body h2{
  font-size:clamp(21px,2.4vw,27px);
  font-weight:700;
  color:var(--text-1);
  line-height:1.5;
  padding-left:14px;
  border-left:3px solid var(--brand);
  margin-top:2em;
}
.article-body h3{
  font-size:18px;
  font-weight:600;
  color:var(--text-1);
  line-height:1.6;
  padding-left:12px;
  border-left:3px solid rgba(43,224,200,.45);
  margin-top:1.7em;
}
.article-body h4{font-size:16px;font-weight:600;color:var(--text-1);margin-top:1.4em}
.article-body p{color:var(--text-2)}
.article-body strong{color:var(--text-1);font-weight:600}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:#7ff3e2}
.article-body ul,.article-body ol{padding-left:1.4em;max-width:820px}
.article-body ul{list-style:none}
.article-body ul li{position:relative;padding-left:6px;margin:.4em 0}
.article-body ul li::before{
  content:"";position:absolute;left:-14px;top:.78em;
  width:6px;height:6px;border-radius:50%;
  background:var(--brand);opacity:.75;
}
.article-body ol{list-style:decimal}
.article-body ol li{margin:.4em 0}
.article-body ol li::marker{color:var(--brand);font-variant-numeric:tabular-nums}
.article-body blockquote{
  padding:16px 20px;
  background:var(--glass);
  border-left:3px solid var(--brand);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--text-2);
  backdrop-filter:blur(10px);
}
.article-body img{border-radius:var(--radius-sm);border:1px solid var(--line);margin:1em auto}
.article-body figure figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px}
.article-body table{
  display:block;width:100%;overflow-x:auto;
  border-collapse:collapse;
  font-size:14px;
  -webkit-overflow-scrolling:touch;
}
.article-body th,.article-body td{
  border:1px solid var(--line);
  padding:10px 14px;
  text-align:left;
  white-space:nowrap;
}
.article-body th{background:rgba(120,220,255,.07);color:var(--text-1);font-weight:600}
.article-body tbody tr:nth-child(even){background:rgba(120,220,255,.03)}
.article-body pre{
  background:#070C18;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:16px 18px;
  overflow-x:auto;
  font-size:13.5px;
  line-height:1.7;
  color:#CFE6FF;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"JetBrains Mono",monospace;
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"JetBrains Mono",monospace;
  font-size:13.5px;
  background:rgba(120,220,255,.08);
  border-radius:6px;
  padding:2px 6px;
  color:#9CF2E4;
}
.article-body pre code{background:none;padding:0;color:inherit}
.article-body hr{border:none;border-top:1px solid var(--line);margin:2em 0}

/* ---------- 正文底部 ---------- */
.article-foot{
  max-width:820px;
  margin-top:36px;
  padding-top:24px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  align-items:center;
  justify-content:space-between;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--radius-xs);
  font-size:12px;
  background:rgba(43,224,200,.1);
  border:1px solid rgba(43,224,200,.26);
  color:#8FF2E2;
}
.article-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 侧栏 ---------- */
.article-side{
  position:sticky;
  top:24px;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.card{
  background:linear-gradient(180deg,rgba(19,28,52,.72),rgba(15,23,48,.58));
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(140%);
  padding:24px;
  transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.card-title{
  font-size:15px;font-weight:600;color:var(--text-1);
  display:flex;align-items:center;gap:8px;
  margin-bottom:16px;
}
.card-title::before{
  content:"";width:3px;height:14px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(43,224,200,.7);
}
.point-list{display:flex;flex-direction:column;gap:12px}
.point-list li{
  display:flex;gap:10px;
  font-size:13.5px;line-height:1.75;color:var(--text-2);
}
.point-list li span{
  flex:none;
  font-size:12px;font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;
  padding-top:2px;
}
.side-links{display:flex;flex-direction:column;gap:12px}
.side-link{
  display:block;
  padding:12px 14px;
  border-radius:var(--radius-sm);
  background:rgba(10,16,32,.6);
  border:1px solid var(--line);
  transition:border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.side-link strong{display:block;font-size:14px;color:var(--text-1);font-weight:600;line-height:1.5}
.side-link em{display:block;font-style:normal;font-size:12.5px;color:var(--text-3);margin-top:4px}
.side-link:hover{border-color:rgba(43,224,200,.45);background:rgba(19,28,52,.8);transform:translateY(-2px)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  border-radius:999px;
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .22s var(--ease),filter .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,#2BE0C8,#19B6A4);
  color:#04120F;
  box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(43,224,200,.5),0 12px 30px -6px rgba(43,224,200,.55)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  background:rgba(19,28,52,.5);
  border-color:rgba(120,220,255,.2);
  color:var(--text-1);
}
.btn-ghost:hover{border-color:rgba(43,224,200,.5);color:var(--brand);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}

/* ---------- 空态 / 状态 ---------- */
.empty-state{
  max-width:820px;
  text-align:center;
  padding:56px 24px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--glass);
  box-shadow:var(--shadow-card);
}
.empty-state svg{
  width:44px;height:44px;margin:0 auto 16px;
  fill:none;stroke:var(--brand);stroke-width:1.6;
  stroke-linecap:round;stroke-linejoin:round;
}
.empty-state h2{font-size:20px;color:var(--text-1);margin-bottom:10px}
.empty-state p{font-size:14px;color:var(--text-3);margin-bottom:22px}

/* ---------- 相关推荐 ---------- */
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;margin-bottom:24px;
}
.section-head h2{
  font-size:clamp(22px,2.4vw,28px);
  font-weight:700;color:var(--text-1);
  line-height:1.45;
  padding-left:14px;
  border-left:3px solid var(--brand);
}
.section-head p{font-size:13.5px;color:var(--text-3);max-width:520px}
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.post-card{
  display:flex;flex-direction:column;
  background:linear-gradient(180deg,rgba(19,28,52,.72),rgba(15,23,48,.58));
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.post-card:hover{
  border-color:rgba(43,224,200,.42);
  transform:translateY(-3px);
  box-shadow:0 24px 48px -22px rgba(0,0,0,.85),0 0 0 1px rgba(43,224,200,.16);
}
.post-card .thumb{
  aspect-ratio:16/9;
  background:var(--bg-2);
  overflow:hidden;
}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.post-card:hover .thumb img{transform:scale(1.04)}
.post-card .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card h3{
  font-size:16.5px;font-weight:600;color:var(--text-1);line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card p{
  font-size:13.5px;color:var(--text-3);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .meta{
  margin-top:auto;padding-top:12px;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--text-3);
}
.badge{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;
  border-radius:var(--radius-xs);
  font-size:12px;font-weight:600;
  white-space:nowrap;
}
.badge-amber{background:rgba(255,178,62,.12);border:1px solid rgba(255,178,62,.3);color:var(--accent)}
.badge-cyan{background:rgba(43,224,200,.12);border:1px solid rgba(43,224,200,.3);color:var(--brand)}

/* ---------- FAQ ---------- */
.faq-wrap{
  display:grid;
  grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);
  gap:24px;
  align-items:start;
}
.faq-list{display:flex;flex-direction:column;gap:12px}
details.faq{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  backdrop-filter:blur(12px);
  overflow:hidden;
  transition:border-color .2s var(--ease);
}
details.faq[open]{border-color:rgba(43,224,200,.4)}
details.faq summary{
  list-style:none;
  cursor:pointer;
  padding:18px 52px 18px 20px;
  position:relative;
  font-size:16px;font-weight:600;color:var(--text-1);
  line-height:1.6;
}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{
  content:"";
  position:absolute;right:22px;top:50%;
  width:9px;height:9px;
  border-right:1.8px solid var(--brand);
  border-bottom:1.8px solid var(--brand);
  transform:translateY(-70%) rotate(45deg);
  transition:transform .2s var(--ease);
}
details.faq[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
details.faq .faq-body{
  padding:0 20px 20px;
  font-size:14.6px;color:var(--text-2);line-height:1.85;
}
.side-sticky{position:sticky;top:24px}

/* ---------- CTA 条 ---------- */
.cta-band{
  margin:64px 0 24px;
  padding:36px;
  border-radius:var(--radius);
  background:linear-gradient(120deg,rgba(43,224,200,.14),rgba(124,92,255,.1) 55%,rgba(15,23,48,.7));
  border:1px solid rgba(43,224,200,.28);
  box-shadow:var(--shadow-card);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);color:var(--text-1);font-weight:700;margin-bottom:8px}
.cta-band p{font-size:14px;color:var(--text-2);max-width:600px}
.cta-band .actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.footer{
  margin-top:24px;
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:56px 0 28px;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:32px;
  padding-bottom:32px;
  border-bottom:1px solid var(--line);
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-brand strong{font-size:16px;color:var(--text-1);font-weight:700;letter-spacing:.5px}
.footer-col p{font-size:13px;color:var(--text-3);line-height:1.85;max-width:340px}
.footer-col p + p{margin-top:8px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:13px;color:var(--text-2);transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  padding-top:22px;
  font-size:12px;color:var(--text-3);
}

/* ---------- 弹层 ---------- */
.modal{
  position:fixed;inset:0;
  display:none;
  align-items:center;justify-content:center;
  padding:20px;
  z-index:120;
}
.modal.is-on{display:flex}
.modal-mask{
  position:absolute;inset:0;
  background:rgba(5,7,14,.74);
  backdrop-filter:blur(4px);
}
.modal-card{
  position:relative;
  width:480px;max-width:92vw;
  max-height:88vh;overflow-y:auto;
  background:linear-gradient(180deg,rgba(19,28,52,.96),rgba(10,16,32,.98));
  border:1px solid var(--line-strong);
  border-radius:var(--radius);
  box-shadow:0 30px 70px -24px rgba(0,0,0,.9);
  padding:28px;
  animation:pop .2s var(--ease);
}
@keyframes pop{from{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}
.modal-close{
  position:absolute;top:14px;right:14px;
  width:32px;height:32px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:rgba(19,28,52,.7);
  border:1px solid var(--line);
  color:var(--text-2);cursor:pointer;
  font-size:16px;line-height:1;
}
.modal-close:hover{color:var(--brand);border-color:rgba(43,224,200,.5)}
.modal-card h3{font-size:19px;color:var(--text-1);font-weight:700;margin-bottom:8px}
.modal-card .modal-desc{font-size:13px;color:var(--text-3);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px}
.field input{
  width:100%;height:46px;
  padding:0 14px;
  background:rgba(10,16,32,.7);
  border:1px solid rgba(120,220,255,.18);
  border-radius:var(--radius-sm);
  color:var(--text-1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input::placeholder{color:#5A6784}
.field input:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(43,224,200,.16);
}
.field.has-error input{border-color:var(--warn)}
.field .err{display:none;font-size:12.5px;color:var(--warn);margin-top:6px}
.field.has-error .err{display:block}
.check{display:flex;align-items:flex-start;gap:10px;font-size:12.5px;color:var(--text-3);margin-bottom:20px}
.check input{width:16px;height:16px;margin-top:3px;accent-color:var(--brand)}
.modal-actions{display:flex;gap:12px;flex-wrap:wrap}
.modal-actions .btn{flex:1 1 auto}
.receipt{
  display:none;
  text-align:center;
  padding:12px 0 4px;
}
.receipt.is-on{display:block}
.receipt svg{
  width:46px;height:46px;margin:0 auto 14px;
  fill:none;stroke:var(--success);stroke-width:1.8;
  stroke-linecap:round;stroke-linejoin:round;
}
.receipt strong{display:block;font-size:16px;color:var(--text-1);margin-bottom:6px}
.receipt p{font-size:13px;color:var(--text-3)}

/* ---------- 响应式 ---------- */
@media (max-width:1439px){
  .container{max-width:1120px}
}
@media (min-width:1024px) and (max-width:1199px){
  :root{--sidebar-w:76px}
  .sidebar{padding:20px 12px;align-items:center}
  .brand{justify-content:center;padding:4px 0 16px;width:100%}
  .brand-text{display:none}
  .nav{width:100%}
  .nav-item{justify-content:center;padding:0}
  .nav-label{
    position:absolute;left:60px;top:50%;
    transform:translateY(-50%) translateX(-6px);
    background:var(--bg-2);
    border:1px solid var(--line);
    border-radius:8px;
    padding:6px 10px;
    font-size:13px;
    color:var(--text-1);
    white-space:nowrap;
    opacity:0;pointer-events:none;
    transition:opacity .2s var(--ease),transform .2s var(--ease);
    z-index:90;
  }
  .nav-item:hover .nav-label{opacity:1;transform:translateY(-50%) translateX(0)}
  .nav-item.is-active::before{left:-12px}
  .sidebar-cta .btn span,.sidebar-foot{display:none}
  .sidebar-cta .btn{padding:0;width:44px}
  .article-layout{grid-template-columns:minmax(0,1fr) 300px}
}
@media (max-width:1023px){
  .topbar{display:flex}
  .sidebar{
    width:280px;
    transform:translateX(-100%);
    box-shadow:24px 0 60px -30px rgba(0,0,0,.9);
  }
  .sidebar.is-open{transform:translateX(0)}
  .main{margin-left:0;padding-top:56px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:28px}
  .article-side{position:static}
  .side-sticky{position:static}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .faq-wrap{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .article-head{padding:26px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .main{padding-top:56px}
  .breadcrumb{margin-bottom:16px}
  .article-head{padding:20px;border-radius:14px}
  .article-head h1{font-size:22px;margin:12px 0 14px}
  .article-cover{margin-top:18px}
  .card{padding:20px}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .cta-band{padding:26px 20px;flex-direction:column;align-items:flex-start}
  .cta-band .actions{width:100%}
  .cta-band .actions .btn{flex:1 1 100%}
  .footer{padding:44px 0 24px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
  .article-foot{flex-direction:column;align-items:flex-start}
  .article-actions{width:100%}
  .article-actions .btn{flex:1 1 100%}
  .modal-card{padding:24px 20px}
}
@media (max-width:519px){
  body{font-size:15.5px}
  .article-body{font-size:15.5px}
  .section-head{flex-direction:column;align-items:flex-start}
  .section-head h2{font-size:20px}
  .breadcrumb .current{max-width:60vw}
  .btn{padding:0 20px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}

/* roulang page: category1 */
/* ============================================================
   设计变量
   ============================================================ */
:root{
  --bg-0:#05070E;
  --bg-1:#0A1020;
  --bg-2:#0F1730;
  --brand:#2BE0C8;
  --accent:#FFB23E;
  --violet:#7C5CFF;
  --success:#35D07F;
  --warn:#FF6B6B;
  --info:#4CC9F0;

  --text-1:#EAF2FF;
  --text-2:#A8B6D1;
  --text-3:#6E7C99;

  --glass:rgba(19,28,52,.55);
  --glass-strong:rgba(15,23,48,.78);
  --line:rgba(120,220,255,.14);
  --line-strong:rgba(120,220,255,.30);

  --r-lg:16px;
  --r-md:12px;
  --r-sm:8px;
  --r-pill:999px;

  --shadow-card:0 20px 40px -20px rgba(0,0,0,.75);
  --shadow-glow:0 0 0 1px rgba(43,224,200,.35), 0 8px 24px -6px rgba(43,224,200,.45);

  --ease:cubic-bezier(.22,.61,.36,1);
  --sidebar:236px;
  --topbar:56px;

  --font-cn:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Barlow","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}

/* ============================================================
   Reset / Base
   ============================================================ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  min-height:100%;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--text-2);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(620px 440px at 78% -8%, rgba(43,224,200,.13), transparent 70%),
    linear-gradient(rgba(120,220,255,.042) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,220,255,.042) 1px, transparent 1px);
  background-size:auto, 44px 44px, 44px 44px;
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700;line-height:1.35;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease);}
img{max-width:100%;display:block;border:0;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
svg{display:block;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(43,224,200,.28);color:#fff;}

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

/* ============================================================
   左侧 App Shell
   ============================================================ */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar);
  background:var(--bg-1);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  gap:8px;
  padding:22px 16px 16px;
  z-index:60;
  overflow-y:auto;
  overscroll-behavior:contain;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  padding:6px 8px 18px;
  border-bottom:1px solid var(--line);
  margin-bottom:10px;
}
.logo-mark{
  flex:0 0 auto;
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:10px;
  background:linear-gradient(150deg,rgba(43,224,200,.24),rgba(124,92,255,.20));
  border:1px solid var(--line-strong);
  color:var(--brand);
  font-size:18px;
  font-weight:700;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.12);
}
.brand-text{display:flex;flex-direction:column;line-height:1.28;min-width:0;}
.brand-text b{font-size:15px;font-weight:700;color:var(--text-1);letter-spacing:.5px;}
.brand-text span{font-size:11px;color:var(--text-3);letter-spacing:2px;}

.nav{display:flex;flex-direction:column;gap:4px;}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  height:44px;
  padding:0 12px;
  border-radius:var(--r-md);
  color:var(--text-2);
  font-size:15px;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-item svg{
  flex:0 0 auto;
  width:20px;height:20px;
  fill:none;
  stroke:currentColor;
  stroke-width:1.7;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.nav-item:hover{background:rgba(43,224,200,.08);color:var(--text-1);}
.nav-item.is-active{
  background:var(--glass);
  color:var(--text-1);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.nav-item.is-active::before{
  content:"";
  position:absolute;
  left:-1px;top:9px;bottom:9px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--brand);
  box-shadow:0 0 12px rgba(43,224,200,.7);
}
.nav-item.is-active svg{stroke:var(--brand);filter:drop-shadow(0 0 6px rgba(43,224,200,.5));}
.nav-label{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}

.side-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:10px;}
.side-foot .btn{width:100%;justify-content:center;}
.side-note{font-size:12px;color:var(--text-3);line-height:1.6;}

/* 顶部移动栏 */
.topbar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:var(--topbar);
  align-items:center;
  gap:12px;
  padding:0 16px;
  background:rgba(10,16,32,.86);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  z-index:70;
}
.hamburger{
  width:40px;height:40px;
  display:grid;place-items:center;
  border-radius:10px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-1);
}
.hamburger svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;}
.topbar-brand{display:flex;flex-direction:column;line-height:1.2;}
.topbar-brand b{font-size:14px;color:var(--text-1);letter-spacing:.5px;}
.topbar-brand span{font-size:10px;color:var(--text-3);letter-spacing:2px;}
.topbar-cta{
  margin-left:auto;
  width:40px;height:40px;
  display:grid;place-items:center;
  border-radius:var(--r-pill);
  background:linear-gradient(140deg,var(--brand),#17b9a6);
  color:#04120f;
  box-shadow:var(--shadow-glow);
}
.topbar-cta svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

.scrim{
  position:fixed;inset:0;
  background:rgba(5,7,14,.72);
  backdrop-filter:blur(4px);
  opacity:0;pointer-events:none;
  transition:opacity .22s var(--ease);
  z-index:80;
}
.scrim.is-open{opacity:1;pointer-events:auto;}
body.is-locked{overflow:hidden;}

/* 主内容区 */
.main{
  margin-left:var(--sidebar);
  min-height:100vh;
  padding-bottom:0;
}

/* ============================================================
   通用组件
   ============================================================ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 24px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:500;
  letter-spacing:.3px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.btn-primary{
  background:linear-gradient(140deg,var(--brand),#18bda8);
  color:#04120f;
  font-weight:700;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(43,224,200,.5),0 12px 30px -6px rgba(43,224,200,.6);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:var(--glass);
  border:1px solid var(--line-strong);
  color:var(--text-1);
  backdrop-filter:blur(14px) saturate(140%);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;}

.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:24px;
  padding:0 10px;
  border-radius:var(--r-sm);
  font-size:12px;
  letter-spacing:.4px;
  background:rgba(255,178,62,.12);
  color:var(--accent);
  border:1px solid rgba(255,178,62,.28);
}
.badge.is-brand{background:rgba(43,224,200,.12);color:var(--brand);border-color:rgba(43,224,200,.28);}

.card{
  position:relative;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(140%);
  transition:transform .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.card::before{
  content:"";
  position:absolute;top:0;left:14px;right:14px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.22),transparent);
}
.card:hover{
  transform:translateY(-3px);
  border-color:var(--line-strong);
  background:rgba(23,34,62,.62);
}

.section{padding:80px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{
  font-size:clamp(24px,2.6vw,30px);
  display:flex;
  align-items:center;
  gap:12px;
}
.section-head h2::before{
  content:"";
  flex:0 0 auto;
  width:3px;height:24px;
  border-radius:2px;
  background:var(--brand);
  box-shadow:0 0 12px rgba(43,224,200,.6);
}
.section-head p{margin-top:14px;font-size:15px;color:var(--text-2);max-width:680px;}

/* ============================================================
   面包屑
   ============================================================ */
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  padding-top:32px;
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--text-1);max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============================================================
   Hero
   ============================================================ */
.hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(5,7,14,.62),rgba(5,7,14,.92)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
}
.hero::after{
  content:"";
  position:absolute;
  width:520px;height:520px;
  right:-140px;top:-200px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(43,224,200,.14),transparent 68%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;padding-top:8px;padding-bottom:72px;}
.hero h1{
  font-size:clamp(30px,4vw,44px);
  margin-top:28px;
  max-width:860px;
  letter-spacing:.5px;
}
.hero-lead{
  margin-top:22px;
  max-width:720px;
  font-size:16.5px;
  color:var(--text-2);
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}

/* ============================================================
   长卡列表（左图右文）
   ============================================================ */
.long-list{display:flex;flex-direction:column;gap:24px;}
.long-card{
  display:grid;
  grid-template-columns:280px 1fr;
  gap:28px;
  padding:20px;
  align-items:center;
}
.long-media{
  position:relative;
  border-radius:var(--r-md);
  overflow:hidden;
  aspect-ratio:16/10;
  background:var(--bg-2);
}
.long-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.long-card:hover .long-media img{transform:scale(1.04);}
.long-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(43,224,200,.10),transparent 55%);
}
.long-body{padding-right:8px;}
.long-index{
  font-family:var(--font-num);
  font-size:13px;
  letter-spacing:2px;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.long-body h3{font-size:19px;margin-top:8px;}
.long-body p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:640px;}
.long-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:14px;
  font-size:14px;
  color:var(--brand);
  border-bottom:1px solid transparent;
}
.long-link:hover{border-bottom-color:var(--brand);}
.long-link svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

/* ============================================================
   数据横条
   ============================================================ */
.band{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:56px 0;
}
.band-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;}
.band-item{text-align:center;}
.band-num{
  font-family:var(--font-num);
  font-size:40px;
  font-weight:700;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.band-num small{font-size:16px;margin-left:4px;color:var(--accent);opacity:.85;}
.band-label{margin-top:8px;font-size:12px;color:var(--text-3);letter-spacing:.6px;}
.band-note{margin-top:26px;font-size:13px;color:var(--text-3);text-align:center;}

/* ============================================================
   步骤时间轴
   ============================================================ */
.timeline{position:relative;padding-left:38px;display:flex;flex-direction:column;gap:26px;}
.timeline::before{
  content:"";
  position:absolute;
  left:11px;top:8px;bottom:8px;
  width:1px;
  background:linear-gradient(180deg,rgba(43,224,200,.6),rgba(43,224,200,.06));
}
.tl-item{position:relative;}
.tl-item::before{
  content:"";
  position:absolute;
  left:-32px;top:8px;
  width:11px;height:11px;
  border-radius:50%;
  background:var(--bg-0);
  border:2px solid var(--brand);
  box-shadow:0 0 12px rgba(43,224,200,.6);
}
.tl-item h3{font-size:17px;}
.tl-item p{margin-top:6px;font-size:14.5px;color:var(--text-2);max-width:640px;}
.tl-num{
  font-family:var(--font-num);
  font-size:12px;
  letter-spacing:2px;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
}

/* ============================================================
   FAQ
   ============================================================ */
.faq-layout{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item.is-open{border-color:var(--line-strong);background:rgba(23,34,62,.6);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 20px;
  text-align:left;
  font-size:16px;
  font-weight:500;
  color:var(--text-1);
}
.faq-q .ico{
  flex:0 0 auto;
  width:20px;height:20px;
  display:grid;place-items:center;
  color:var(--brand);
  transition:transform .2s var(--ease);
}
.faq-q .ico svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;}
.faq-item.is-open .faq-q .ico{transform:rotate(180deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s var(--ease);
}
.faq-a p{padding:0 20px 20px;font-size:15px;color:var(--text-2);}

.faq-aside{padding:24px;position:sticky;top:24px;}
.faq-aside h3{font-size:17px;}
.faq-points{margin-top:16px;display:flex;flex-direction:column;gap:14px;}
.faq-points li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);}
.faq-points li span.dot{
  flex:0 0 auto;
  width:6px;height:6px;
  margin-top:9px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 8px rgba(43,224,200,.8);
}
.faq-aside .btn{width:100%;margin-top:22px;}

/* ============================================================
   CTA 条
   ============================================================ */
.cta-band{padding:0 0 80px;}
.cta-inner{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  padding:44px 40px;
  background-image:linear-gradient(120deg,rgba(10,16,32,.9),rgba(10,16,32,.72)),url("/assets/images/backpic/back-3.webp");
  background-size:cover;
  background-position:center;
  border:1px solid var(--line-strong);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
}
.cta-inner::after{
  content:"";
  position:absolute;
  width:420px;height:420px;
  right:-160px;bottom:-240px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(43,224,200,.14),transparent 68%);
  pointer-events:none;
}
.cta-text{position:relative;z-index:2;max-width:620px;}
.cta-text h2{font-size:clamp(22px,2.4vw,28px);}
.cta-text p{margin-top:12px;font-size:15px;}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap;}

/* ============================================================
   相关分类
   ============================================================ */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rel-card{display:block;padding:24px;}
.rel-card .idx{
  font-family:var(--font-num);
  font-size:12px;
  letter-spacing:2px;
  color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.rel-card h3{margin-top:12px;font-size:17px;}
.rel-card p{margin-top:8px;font-size:14px;color:var(--text-2);}
.rel-card .go{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:16px;
  font-size:14px;
  color:var(--brand);
}
.rel-card .go svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

/* ============================================================
   弹层 / 表单
   ============================================================ */
.modal{
  position:fixed;
  inset:0;
  display:none;
  align-items:center;
  justify-content:center;
  z-index:100;
  padding:24px;
}
.modal.is-open{display:flex;}
.modal-bg{position:absolute;inset:0;background:rgba(5,7,14,.78);backdrop-filter:blur(5px);}
.modal-box{
  position:relative;
  z-index:2;
  width:480px;
  max-width:100%;
  background:var(--glass-strong);
  border:1px solid var(--line-strong);
  border-radius:var(--r-lg);
  padding:28px;
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px) saturate(140%);
  animation:pop .2s var(--ease);
}
@keyframes pop{from{opacity:0;transform:scale(.96) translateY(8px);}to{opacity:1;transform:none;}}
.modal-box h3{font-size:20px;}
.modal-box > p{margin-top:10px;font-size:14px;color:var(--text-2);}
.modal-close{
  position:absolute;
  top:14px;right:14px;
  width:32px;height:32px;
  display:grid;place-items:center;
  border-radius:9px;
  color:var(--text-3);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.modal-close:hover{background:rgba(43,224,200,.1);color:var(--brand);}
.modal-close svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;}

.form{margin-top:22px;display:flex;flex-direction:column;gap:16px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field label{font-size:13px;color:var(--text-2);}
.field input,.field textarea{
  width:100%;
  padding:12px 14px;
  border-radius:var(--r-md);
  background:rgba(10,16,32,.7);
  border:1px solid rgba(120,220,255,.18);
  color:var(--text-1);
  font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(43,224,200,.16);
}
.field.has-error input,.field.has-error textarea{border-color:var(--warn);}
.field .err{font-size:13px;color:var(--warn);display:none;}
.field.has-error .err{display:block;}

.check{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--text-3);line-height:1.7;}
.check input{margin-top:4px;accent-color:var(--brand);width:15px;height:15px;}
.modal-foot{display:flex;gap:12px;flex-wrap:wrap;margin-top:4px;}
.modal-foot .btn{flex:1 1 auto;}

.receipt{
  display:none;
  margin-top:20px;
  padding:18px;
  border-radius:var(--r-md);
  border:1px solid rgba(53,208,127,.36);
  background:rgba(53,208,127,.1);
  color:var(--text-1);
  font-size:14.5px;
  align-items:flex-start;
  gap:12px;
}
.receipt.is-open{display:flex;}
.receipt svg{flex:0 0 auto;width:20px;height:20px;fill:none;stroke:var(--success);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;margin-top:3px;}

/* ============================================================
   页脚
   ============================================================ */
.footer{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
  margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);letter-spacing:.4px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand strong{font-size:15px;color:var(--text-1);letter-spacing:.5px;}
.footer-col p{font-size:13px;color:var(--text-3);line-height:1.85;}
.footer-col p + p{margin-top:10px;}
.footer-col ul{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.footer-col ul li a{font-size:13px;color:var(--text-2);}
.footer-col ul li a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:12px;
  color:var(--text-3);
}

/* ============================================================
   状态样式
   ============================================================ */
.skeleton{
  position:relative;
  overflow:hidden;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  min-height:96px;
}
.skeleton::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(100deg,transparent 20%,rgba(43,224,200,.10) 50%,transparent 80%);
  transform:translateX(-100%);
  animation:shimmer 1.6s infinite;
}
@keyframes shimmer{to{transform:translateX(100%);}}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1199px) and (min-width:1024px){
  .long-card{grid-template-columns:230px 1fr;}
}
@media (max-width:1199px) and (min-width:768px){
  :root{--sidebar:76px;}
  .brand{padding:6px 0 16px;justify-content:center;border-bottom:1px solid var(--line);}
  .brand-text{display:none;}
  .nav-item{justify-content:center;padding:0;}
  .nav-item .nav-label{
    position:absolute;
    left:64px;
    padding:6px 12px;
    border-radius:var(--r-sm);
    background:var(--bg-2);
    border:1px solid var(--line);
    color:var(--text-1);
    font-size:13px;
    white-space:nowrap;
    opacity:0;
    pointer-events:none;
    transition:opacity .18s var(--ease);
    z-index:10;
    box-shadow:var(--shadow-card);
  }
  .nav-item:hover .nav-label{opacity:1;}
  .side-foot .btn span{display:none;}
  .side-note{display:none;}
  .band-grid{grid-template-columns:repeat(4,1fr);gap:16px;}
}
@media (max-width:1023px){
  .faq-layout{grid-template-columns:1fr;}
  .faq-aside{position:static;}
  .rel-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  :root{--sidebar:0px;}
  .sidebar{
    width:280px;
    transform:translateX(-100%);
    transition:transform .24s var(--ease);
    z-index:90;
  }
  .sidebar.is-open{transform:none;}
  .sidebar .brand-text{display:flex;}
  .sidebar .nav-item .nav-label{position:static;opacity:1;background:none;border:0;padding:0;box-shadow:none;font-size:15px;color:inherit;pointer-events:auto;}
  .topbar{display:flex;}
  .main{margin-left:0;padding-top:var(--topbar);}
  .container{padding:0 20px;}
  .section{padding:48px 0;}
  .breadcrumb{padding-top:22px;}
  .hero-inner{padding-bottom:48px;}
  .hero h1{margin-top:20px;}
  .hero-actions .btn{width:100%;}
  .long-card{grid-template-columns:1fr;gap:18px;padding:20px;}
  .band{padding:40px 0;}
  .band-grid{grid-template-columns:1fr 1fr;gap:24px;}
  .band-num{font-size:32px;}
  .rel-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer{padding:48px 0 24px;}
  .cta-inner{padding:32px 24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .modal-box{padding:24px;border-radius:14px;}
  .modal{padding:16px;}
}
@media (max-width:479px){
  body{font-size:15px;}
  .hero h1{font-size:26px;}
  .section-head h2{font-size:21px;}
  .long-body h3{font-size:17px;}
  .band-num{font-size:28px;}
  .btn{padding:0 18px;font-size:14.5px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category3 */
:root{
  --bg-0:#05070E;
  --bg-1:#0A1020;
  --bg-2:#0F1730;
  --brand:#2BE0C8;
  --accent:#FFB23E;
  --violet:#7C5CFF;
  --success:#35D07F;
  --warn:#FF6B6B;
  --info:#4CC9F0;
  --text-1:#EAF2FF;
  --text-2:#A8B6D1;
  --text-3:#6E7C99;
  --glass:rgba(19,28,52,.55);
  --glass-strong:rgba(19,28,52,.78);
  --line:rgba(120,220,255,.14);
  --line-soft:rgba(120,220,255,.08);
  --radius:16px;
  --radius-sm:12px;
  --radius-badge:8px;
  --shadow-card:0 20px 40px -20px rgba(0,0,0,.75);
  --shadow-glow:0 0 0 1px rgba(43,224,200,.35),0 8px 24px -6px rgba(43,224,200,.45);
  --shell:236px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --mono:"JetBrains Mono","Barlow",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;padding:0;
  background:var(--bg-0);
  color:var(--text-2);
  font-family:var(--font);
  font-size:16px;line-height:1.85;
  font-weight:400;
  letter-spacing:.2px;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(120,220,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,220,255,.045) 1px,transparent 1px);
  background-size:48px 48px;
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(640px 460px at 20% 6%,rgba(43,224,200,.12),transparent 70%);
}
h1,h2,h3,h4,p,ul,ol,li,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
img{max-width:100%;display:block;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea{font-family:inherit;font-size:15px;color:var(--text-1);}
svg{display:block;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

/* ---------- shell ---------- */
.shell{
  position:fixed;top:0;left:0;bottom:0;width:var(--shell);z-index:40;
  background:linear-gradient(180deg,rgba(10,16,32,.96),rgba(5,7,14,.96));
  border-right:1px solid var(--line-soft);
  backdrop-filter:blur(14px) saturate(140%);
  display:flex;flex-direction:column;
  transition:transform .24s var(--ease);
}
.shell-inner{display:flex;flex-direction:column;height:100%;padding:24px 18px 20px;}
.logo{display:flex;align-items:center;gap:12px;padding:6px 6px 20px;border-bottom:1px solid var(--line-soft);}
.logo-mark{
  flex:0 0 40px;width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(43,224,200,.22),rgba(124,92,255,.16));
  border:1px solid rgba(43,224,200,.4);
  color:var(--brand);font-size:18px;font-weight:700;
  box-shadow:0 0 20px -6px rgba(43,224,200,.55);
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-line1{font-size:17px;font-weight:700;color:var(--text-1);letter-spacing:.5px;}
.logo-line2{font-size:12px;font-weight:500;color:var(--text-3);letter-spacing:2px;}
.nav{display:flex;flex-direction:column;gap:6px;margin-top:22px;flex:1;}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:11px;
  color:var(--text-2);font-size:15px;font-weight:500;
  border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.nav-item svg{width:20px;height:20px;flex:0 0 20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.nav-item:hover{background:rgba(43,224,200,.08);color:var(--text-1);}
.nav-item.is-active{
  background:var(--glass);
  border-color:var(--line);
  color:var(--text-1);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
}
.nav-item.is-active::before{
  content:"";position:absolute;left:-10px;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:3px;background:var(--brand);
  box-shadow:0 0 12px rgba(43,224,200,.8);
}
.nav-item.is-active svg{filter:drop-shadow(0 0 6px rgba(43,224,200,.65));}
.nav-item::after{
  content:attr(data-tip);
  position:absolute;left:calc(100% + 12px);top:50%;transform:translateY(-50%) scale(.96);
  background:var(--glass-strong);border:1px solid var(--line);color:var(--text-1);
  font-size:13px;white-space:nowrap;padding:6px 10px;border-radius:8px;
  opacity:0;pointer-events:none;transition:opacity .18s var(--ease),transform .18s var(--ease);
}
.shell-foot{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.shell-copy{font-size:12px;color:var(--text-3);line-height:1.6;padding:0 4px;}

/* ---------- topbar ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:50;
  align-items:center;gap:12px;padding:0 14px;
  background:rgba(10,16,32,.94);border-bottom:1px solid var(--line-soft);
  backdrop-filter:blur(14px) saturate(140%);
}
.hamburger{
  width:40px;height:40px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--line);background:rgba(19,28,52,.6);
}
.hamburger svg{width:20px;height:20px;fill:none;stroke:var(--text-1);stroke-width:1.8;stroke-linecap:round;}
.topbar-brand{font-size:15px;font-weight:700;color:var(--text-1);letter-spacing:.5px;flex:1;}
.topbar-cta{
  width:40px;height:40px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(43,224,200,.9),rgba(43,224,200,.65));
  color:#04211D;
}
.topbar-cta svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.drawer-mask{
  display:none;position:fixed;inset:0;z-index:39;
  background:rgba(5,7,14,.72);backdrop-filter:blur(4px);
}

/* ---------- layout ---------- */
.main{margin-left:var(--shell);position:relative;z-index:1;}
.container{max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:72px 0;}
.section-head{margin-bottom:32px;max-width:760px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:2px;color:var(--brand);text-transform:uppercase;
  font-family:var(--mono);margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--brand);}
h1{font-size:clamp(30px,4vw,44px);line-height:1.28;font-weight:700;color:var(--text-1);letter-spacing:-.4px;}
h2{font-size:clamp(24px,2.6vw,30px);line-height:1.35;font-weight:700;color:var(--text-1);position:relative;padding-left:16px;}
h2::before{content:"";position:absolute;left:0;top:.28em;width:4px;height:.95em;border-radius:3px;background:linear-gradient(180deg,var(--brand),rgba(43,224,200,.15));}
h3{font-size:18px;line-height:1.5;font-weight:600;color:var(--text-1);}
.lead{font-size:17px;color:var(--text-2);line-height:1.9;}
.muted{font-size:13px;color:var(--text-3);line-height:1.75;}

/* ---------- breadcrumb ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);padding-top:32px;}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:rgba(110,124,153,.6);}
.crumbs .current{color:var(--text-1);}

/* ---------- hero ---------- */
.hero{padding:28px 0 8px;}
.hero-grid{display:grid;grid-template-columns:minmax(0,58fr) minmax(0,42fr);gap:24px;align-items:stretch;margin-top:26px;}
.hero-copy{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  padding:32px;box-shadow:var(--shadow-card);backdrop-filter:blur(14px) saturate(140%);
  display:flex;flex-direction:column;gap:18px;
}
.hero-copy p.lead{max-width:56ch;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;
  border-radius:var(--radius-badge);font-size:12px;line-height:1;
  color:var(--accent);background:rgba(255,178,62,.12);border:1px solid rgba(255,178,62,.28);
}
.badge.is-cyan{color:var(--brand);background:rgba(43,224,200,.12);border-color:rgba(43,224,200,.3);}
.hero-visual{
  position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  background:var(--bg-1) url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  min-height:320px;box-shadow:var(--shadow-card);
}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(5,7,14,.35),rgba(5,7,14,.82));
}
.hero-visual .float{
  position:absolute;z-index:2;background:var(--glass-strong);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:14px 16px;backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
}
.float-a{left:18px;bottom:22px;}
.float-b{right:18px;top:22px;}
.float .figure{font-family:var(--mono);font-size:26px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1.2;}
.float .figure.is-cyan{color:var(--brand);}
.float .cap{font-size:12px;color:var(--text-3);margin-top:4px;}
.hero-trust{display:flex;flex-wrap:wrap;gap:18px;margin-top:22px;}
.hero-trust span{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);}
.hero-trust svg{width:16px;height:16px;fill:none;stroke:var(--brand);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.3px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease);
}
.btn-primary{
  color:#04211D;background:linear-gradient(135deg,#3DF0D6,#22C7B2);
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(43,224,200,.5),0 12px 28px -6px rgba(43,224,200,.55);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  color:var(--text-1);background:rgba(19,28,52,.5);border:1px solid var(--line);
}
.btn-ghost:hover{border-color:rgba(43,224,200,.5);color:var(--brand);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-block{width:100%;}
.btn:disabled{opacity:.45;cursor:not-allowed;}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- generic card ---------- */
.card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px) saturate(140%);
  transition:transform .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.card:hover{transform:translateY(-3px);border-color:rgba(43,224,200,.42);background:rgba(19,28,52,.68);}
.card h3{margin-bottom:10px;}
.card p{font-size:15px;color:var(--text-2);line-height:1.8;}
.textlink{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);}
.textlink:hover{text-decoration:underline;text-underline-offset:4px;}
.textlink svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- steps strip ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:8px;}
.step{
  position:relative;background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px 24px;box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.step:hover{transform:translateY(-3px);border-color:rgba(43,224,200,.4);}
.step .num{
  font-family:var(--mono);font-size:34px;font-weight:700;color:rgba(43,224,200,.28);
  font-variant-numeric:tabular-nums;line-height:1;margin-bottom:12px;
}
.step h3{font-size:18px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--text-2);line-height:1.8;}

/* ---------- faq layout ---------- */
.faq-layout{display:grid;grid-template-columns:minmax(0,65fr) minmax(0,35fr);gap:24px;align-items:start;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-sm);
  overflow:hidden;transition:border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item:hover{border-color:rgba(43,224,200,.3);}
.faq-item[open]{border-color:rgba(43,224,200,.45);background:rgba(19,28,52,.7);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  padding:18px 20px;font-size:16px;font-weight:600;color:var(--text-1);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-num{
  font-family:var(--mono);font-size:13px;color:var(--brand);flex:0 0 auto;
  border:1px solid rgba(43,224,200,.35);border-radius:6px;padding:2px 6px;line-height:1.4;
}
.faq-q{flex:1;}
.faq-caret{width:18px;height:18px;flex:0 0 18px;fill:none;stroke:var(--text-3);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s var(--ease),stroke .2s var(--ease);}
.faq-item[open] .faq-caret{transform:rotate(180deg);stroke:var(--brand);}
.faq-a{padding:0 20px 20px 62px;font-size:15px;color:var(--text-2);line-height:1.85;}
.faq-a p+p{margin-top:10px;}
.faq-a strong{color:var(--text-1);font-weight:600;}

.aside-sticky{position:sticky;top:32px;display:flex;flex-direction:column;gap:16px;}
.point-card{
  background:var(--glass-strong);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow-card);backdrop-filter:blur(14px) saturate(140%);
}
.point-card h3{font-size:17px;margin-bottom:14px;}
.point-card ul{display:flex;flex-direction:column;gap:12px;}
.point-card li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.75;}
.point-card li svg{width:17px;height:17px;flex:0 0 17px;margin-top:4px;fill:none;stroke:var(--brand);stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.point-card .muted{margin-top:14px;padding-top:14px;border-top:1px solid var(--line-soft);}

/* ---------- stats strip ---------- */
.stats{
  background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:56px 0;
}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:32px;text-align:center;}
.stat .figure{font-family:var(--mono);font-size:40px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1.1;}
.stat .figure small{font-size:16px;color:var(--text-3);margin-left:4px;font-weight:500;}
.stat .cap{font-size:12px;color:var(--text-3);margin-top:8px;letter-spacing:.5px;}
.stats-note{margin-top:26px;font-size:13px;color:var(--text-3);text-align:center;}

/* ---------- media block ---------- */
.media-block{display:grid;grid-template-columns:minmax(0,44fr) minmax(0,56fr);gap:24px;align-items:center;}
.media-figure{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card);}
.media-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.media-copy{display:flex;flex-direction:column;gap:16px;}
.check-list{display:flex;flex-direction:column;gap:10px;margin-top:4px;}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--text-2);line-height:1.75;}
.check-list svg{width:17px;height:17px;flex:0 0 17px;margin-top:5px;fill:none;stroke:var(--brand);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- cta band ---------- */
.cta-band{
  background:linear-gradient(135deg,rgba(43,224,200,.12),rgba(124,92,255,.08));
  border:1px solid var(--line);border-radius:20px;padding:40px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  box-shadow:var(--shadow-card);
}
.cta-band h2{padding-left:0;}
.cta-band h2::before{display:none;}
.cta-band p{margin-top:12px;font-size:15px;color:var(--text-2);max-width:60ch;}

/* ---------- related categories ---------- */
.related{display:flex;flex-direction:column;gap:12px;}
.related-item{
  display:flex;align-items:center;gap:16px;
  padding:18px 20px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--glass);
  transition:transform .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.related-item:hover{transform:translateX(4px);border-color:rgba(43,224,200,.45);background:rgba(19,28,52,.7);}
.related-item .idx{font-family:var(--mono);font-size:13px;color:var(--accent);flex:0 0 28px;}
.related-item .txt{flex:1;}
.related-item .txt strong{display:block;font-size:16px;font-weight:600;color:var(--text-1);}
.related-item .txt span{font-size:13px;color:var(--text-3);}
.related-item svg{width:18px;height:18px;fill:none;stroke:var(--brand);stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- form & modal ---------- */
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px;}
.field label{font-size:13px;color:var(--text-2);}
.field input{
  height:48px;padding:0 14px;border-radius:var(--radius-sm);
  background:rgba(10,16,32,.7);border:1px solid rgba(120,220,255,.18);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field input:hover{border-color:rgba(120,220,255,.3);}
.field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(43,224,200,.16);background:rgba(10,16,32,.9);}
.field.has-error input{border-color:var(--warn);box-shadow:0 0 0 3px rgba(255,107,107,.14);}
.field-error{font-size:13px;color:var(--warn);min-height:18px;}
.check{display:flex;align-items:flex-start;gap:8px;font-size:13px;color:var(--text-3);margin:4px 0 18px;}
.check input{width:16px;height:16px;margin-top:3px;accent-color:var(--brand);}
.modal{position:fixed;inset:0;z-index:80;display:none;}
.modal.is-open{display:block;}
.modal-mask{position:absolute;inset:0;background:rgba(5,7,14,.72);backdrop-filter:blur(4px);}
.modal-card{
  position:relative;width:480px;max-width:92vw;margin:9vh auto 0;
  background:linear-gradient(160deg,rgba(19,28,52,.96),rgba(10,16,32,.96));
  border:1px solid var(--line);border-radius:18px;padding:28px;
  box-shadow:0 30px 60px -24px rgba(0,0,0,.9);
  animation:modalIn .2s var(--ease);
}
@keyframes modalIn{from{opacity:0;transform:scale(.96) translateY(8px);}to{opacity:1;transform:scale(1) translateY(0);}}
.modal-close{
  position:absolute;top:14px;right:14px;width:32px;height:32px;border-radius:10px;
  display:grid;place-items:center;color:var(--text-3);border:1px solid var(--line);
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.modal-close:hover{color:var(--brand);border-color:rgba(43,224,200,.45);}
.modal-card h3{font-size:20px;margin-bottom:8px;}
.modal-desc{font-size:14px;color:var(--text-2);line-height:1.8;margin-bottom:20px;}
.success-card{
  display:flex;gap:12px;align-items:flex-start;
  border:1px solid rgba(53,208,127,.4);background:rgba(53,208,127,.1);
  border-radius:var(--radius-sm);padding:18px;
}
.success-card svg{width:22px;height:22px;flex:0 0 22px;margin-top:2px;fill:none;stroke:var(--success);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.success-card strong{display:block;color:var(--text-1);font-size:15px;margin-bottom:4px;}
.success-card span{font-size:13px;color:var(--text-2);line-height:1.7;}

/* ---------- footer ---------- */
.footer{
  margin-top:24px;background:var(--bg-1);border-top:1px solid var(--line);
  padding:56px 0 28px;position:relative;z-index:1;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .logo-mark{width:34px;height:34px;flex:0 0 34px;font-size:15px;border-radius:10px;}
.footer-brand strong{font-size:15px;color:var(--text-1);letter-spacing:.4px;}
.footer-col p{font-size:13px;color:var(--text-3);line-height:1.85;margin-bottom:8px;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:13px;color:var(--text-2);}
.footer-col ul a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:12px;color:var(--text-3);
}

/* ---------- responsive ---------- */
@media (max-width:1439px){
  .container{padding:0 28px;}
}
@media (max-width:1199px){
  :root{--shell:76px;}
  .shell-inner{padding:22px 12px 18px;}
  .logo{justify-content:center;padding:4px 0 18px;}
  .logo-text{display:none;}
  .nav-item{justify-content:center;padding:0;}
  .nav-label{display:none;}
  .nav-item:hover::after,.nav-item:focus-visible::after{opacity:1;transform:translateY(-50%) scale(1);}
  .shell-foot .btn{padding:0;font-size:0;gap:0;}
  .shell-foot .btn::after{content:"获取说明";font-size:12px;letter-spacing:.5px;}
  .shell-copy{display:none;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-visual{min-height:240px;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .faq-layout{grid-template-columns:1fr;}
  .aside-sticky{position:static;}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .media-block{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:1023px){
  .step .num{font-size:28px;}
}
@media (max-width:767px){
  body{font-size:15px;line-height:1.8;}
  .topbar{display:flex;}
  .shell{transform:translateX(-100%);width:280px;z-index:60;}
  body.drawer-open .shell{transform:translateX(0);}
  body.drawer-open .drawer-mask{display:block;}
  body.drawer-open{overflow:hidden;}
  .shell-inner{padding:24px 18px 20px;}
  .logo{justify-content:flex-start;padding:6px 6px 20px;}
  .logo-text{display:flex;}
  .nav-item{justify-content:flex-start;padding:0 12px;}
  .nav-label{display:inline;}
  .nav-item::after{display:none;}
  .shell-foot .btn{padding:0 24px;font-size:15px;gap:8px;}
  .shell-foot .btn::after{content:none;}
  .shell-copy{display:block;}
  .main{margin-left:0;padding-top:56px;}
  .container{padding:0 18px;}
  .section{padding:48px 0;}
  .crumbs{padding-top:22px;}
  .hero{padding:18px 0 0;}
  .hero-copy{padding:24px;}
  .btn-row{flex-direction:column;}
  .btn{width:100%;}
  .btn-row .btn{width:100%;}
  .steps{grid-template-columns:1fr;}
  .faq-a{padding:0 18px 18px 18px;}
  .faq-item summary{padding:16px;gap:10px;font-size:15px;}
  .cta-band{padding:26px;}
  .cta-band .btn{width:100%;}
  .stats{padding:40px 0;}
  .footer{padding:40px 0 22px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;}
  .media-figure img{aspect-ratio:16/11;}
}
@media (max-width:479px){
  h1{font-size:26px;}
  h2{font-size:21px;}
  .hero-copy{padding:20px;}
  .card{padding:20px;}
  .stat .figure{font-size:32px;}
  .modal-card{padding:22px;margin-top:6vh;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}

/* roulang page: category2 */
:root{
  --bg-0:#05070E;
  --bg-1:#0A1020;
  --bg-2:#0F1730;
  --brand:#2BE0C8;
  --accent:#FFB23E;
  --violet:#7C5CFF;
  --ok:#35D07F;
  --warn:#FF6B6B;
  --info:#4CC9F0;
  --text-1:#EAF2FF;
  --text-2:#A8B6D1;
  --text-3:#6E7C99;
  --glass:rgba(19,28,52,.55);
  --glass-strong:rgba(19,28,52,.78);
  --line:rgba(120,220,255,.14);
  --line-strong:rgba(120,220,255,.32);
  --radius:16px;
  --radius-sm:12px;
  --radius-badge:8px;
  --shadow:0 20px 40px -20px rgba(0,0,0,.75);
  --glow:0 0 0 1px rgba(43,224,200,.35),0 8px 24px -6px rgba(43,224,200,.45);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sidebar-w:236px;
  --topbar-h:56px;
}

*,
*::before,
*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;}

body{
  margin:0;
  min-height:100%;
  background:var(--bg-0);
  color:var(--text-2);
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  letter-spacing:.2px;
  overflow-x:hidden;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(120,220,255,.045) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(120,220,255,.045) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 88%);
  -webkit-mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 88%);
}

body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:radial-gradient(circle at 76% 8%,rgba(43,224,200,.13),transparent 58%),
             radial-gradient(circle at 12% 82%,rgba(124,92,255,.07),transparent 60%);
}

h1,h2,h3,h4{
  color:var(--text-1);
  margin:0;
  font-weight:700;
  line-height:1.4;
}

p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}

a{
  color:var(--brand);
  text-decoration:none;
  transition:color .2s var(--ease),opacity .2s var(--ease);
}
a:hover{color:#6ef3e0;}

ul,ol{margin:0;padding:0;list-style:none;}

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

button,input,textarea,select{
  font:inherit;
  color:inherit;
}

button{border:0;background:none;cursor:pointer;}

:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:6px;
}

.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;}

/* ---------- 布局骨架 ---------- */
.app{position:relative;z-index:2;}

.content{
  margin-left:var(--sidebar-w);
  min-height:100vh;
  display:flex;
  flex-direction:column;
}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}

main{flex:1 1 auto;padding-bottom:24px;}

/* ---------- 侧栏 ---------- */
.sidebar{
  position:fixed;
  top:0;
  left:0;
  bottom:0;
  width:var(--sidebar-w);
  z-index:60;
  display:flex;
  flex-direction:column;
  gap:20px;
  padding:26px 18px 20px;
  background:linear-gradient(180deg,rgba(10,16,32,.96),rgba(5,7,14,.94));
  border-right:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  overflow-y:auto;
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
  padding:8px 10px 16px;
  border-bottom:1px solid var(--line);
  color:var(--text-1);
}

.brand-mark,
.logo-mark{
  flex:0 0 auto;
  width:42px;
  height:42px;
  display:grid;
  place-items:center;
  border-radius:12px;
  background:linear-gradient(140deg,rgba(43,224,200,.22),rgba(124,92,255,.16));
  border:1px solid var(--line-strong);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.14);
  color:var(--brand);
  font-size:19px;
  font-weight:700;
}

.brand-text{
  display:flex;
  flex-direction:column;
  line-height:1.32;
  min-width:0;
}

.brand-text strong{
  font-size:17px;
  font-weight:700;
  color:var(--text-1);
  letter-spacing:.5px;
}

.brand-text em{
  font-style:normal;
  font-size:12px;
  letter-spacing:2px;
  color:var(--text-3);
}

.nav{
  display:flex;
  flex-direction:column;
  gap:4px;
  flex:1 1 auto;
}

.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  height:44px;
  padding:0 12px;
  border-radius:10px;
  color:var(--text-2);
  font-size:15px;
  border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}

.nav-item svg{
  flex:0 0 auto;
  width:20px;
  height:20px;
  fill:none;
  stroke:currentColor;
  stroke-width:1.6;
  stroke-linecap:round;
  stroke-linejoin:round;
}

.nav-item:hover{
  background:rgba(43,224,200,.08);
  color:var(--text-1);
}

.nav-item.is-active{
  background:var(--glass);
  border-color:var(--line);
  color:var(--text-1);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}

.nav-item.is-active::before{
  content:"";
  position:absolute;
  left:-18px;
  top:8px;
  bottom:8px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--brand);
  box-shadow:0 0 12px rgba(43,224,200,.7);
}

.nav-item.is-active svg{
  color:var(--brand);
  filter:drop-shadow(0 0 6px rgba(43,224,200,.6));
}

.nav-label{
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

.sidebar-cta{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  width:100%;
  min-height:46px;
}

.sidebar-cta svg{
  width:18px;
  height:18px;
  fill:none;
  stroke:currentColor;
  stroke-width:1.8;
  stroke-linecap:round;
  stroke-linejoin:round;
}

.sidebar-note{
  margin:0;
  font-size:12px;
  line-height:1.7;
  color:var(--text-3);
  text-align:center;
  border-top:1px solid var(--line);
  padding-top:14px;
}

/* ---------- 顶栏（移动） ---------- */
.topbar{
  display:none;
  position:fixed;
  top:0;
  left:0;
  right:0;
  height:var(--topbar-h);
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:0 16px;
  z-index:70;
  background:rgba(10,16,32,.9);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}

.burger{
  width:44px;
  height:44px;
  display:grid;
  place-items:center;
  gap:5px;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(19,28,52,.5);
}

.burger span{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--text-1);
}

.topbar-brand{
  display:flex;
  align-items:center;
  gap:9px;
  color:var(--text-1);
}

.topbar-brand .brand-mark{
  width:34px;
  height:34px;
  border-radius:10px;
  font-size:15px;
}

.topbar-brand .brand-text strong{font-size:14px;letter-spacing:.3px;}
.topbar-brand .brand-text em{font-size:10px;letter-spacing:1.4px;}

.icon-btn{
  width:44px;
  height:44px;
  display:grid;
  place-items:center;
  border-radius:50%;
  border:1px solid rgba(43,224,200,.35);
  background:rgba(43,224,200,.12);
  color:var(--brand);
}

.icon-btn svg{
  width:20px;
  height:20px;
  fill:none;
  stroke:currentColor;
  stroke-width:1.8;
  stroke-linecap:round;
  stroke-linejoin:round;
}

.scrim{
  display:none;
  position:fixed;
  inset:0;
  z-index:55;
  background:rgba(5,7,14,.72);
  backdrop-filter:blur(4px);
  -webkit-backdrop-filter:blur(4px);
}

.scrim.is-open{display:block;}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 26px;
  border-radius:999px;
  font-size:15px;
  font-weight:500;
  letter-spacing:.4px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),filter .2s var(--ease);
}

.btn-primary{
  background:linear-gradient(120deg,#2BE0C8,#20b8d6);
  color:#03231f;
  font-weight:700;
  box-shadow:var(--glow);
}

.btn-primary:hover{
  filter:brightness(1.08);
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(43,224,200,.5),0 14px 30px -8px rgba(43,224,200,.55);
  color:#03231f;
}

.btn-primary:active{transform:translateY(1px);}

.btn-ghost{
  background:rgba(19,28,52,.5);
  border:1px solid var(--line-strong);
  color:var(--text-1);
}

.btn-ghost:hover{
  border-color:var(--brand);
  color:var(--brand);
  transform:translateY(-1px);
}

.btn-ghost:active{transform:translateY(1px);}

.btn-block{width:100%;}

.btn[disabled]{
  opacity:.45;
  cursor:not-allowed;
  transform:none;
}

.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:var(--radius-badge);
  font-size:12px;
  letter-spacing:.6px;
  background:rgba(255,178,62,.12);
  color:var(--accent);
  border:1px solid rgba(255,178,62,.3);
}

.badge-brand{
  background:rgba(43,224,200,.12);
  color:var(--brand);
  border-color:rgba(43,224,200,.3);
}

.card{
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow);
  padding:24px;
  transition:border-color .22s var(--ease),transform .22s var(--ease),background .22s var(--ease);
}

.card:hover{
  border-color:var(--line-strong);
  transform:translateY(-3px);
  background:rgba(19,28,52,.66);
}

.section{padding:76px 0;}

.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:36px;
}

.section-title{
  position:relative;
  padding-left:16px;
  font-size:clamp(24px,2.6vw,30px);
  font-weight:700;
}

.section-title::before{
  content:"";
  position:absolute;
  left:0;
  top:.28em;
  bottom:.28em;
  width:3px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--brand),rgba(43,224,200,.15));
}

.section-desc{
  max-width:620px;
  margin:10px 0 0 16px;
  font-size:15px;
  color:var(--text-2);
}

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

.text-link:hover{border-bottom-color:rgba(43,224,200,.6);}

/* ---------- 面包屑 ---------- */
.crumbs{
  padding:28px 0 0;
  font-size:13px;
  color:var(--text-3);
}

.crumbs ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
}

.crumbs li{display:flex;align-items:center;gap:8px;}

.crumbs li+li::before{
  content:"/";
  color:var(--text-3);
  opacity:.6;
}

.crumbs a{color:var(--text-3);}
.crumbs a:hover{color:var(--brand);}
.crumbs [aria-current="page"]{color:var(--text-1);}

/* ---------- Hero ---------- */
.hero{
  padding:34px 0 12px;
}

.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.32fr) minmax(0,1fr);
  gap:44px;
  align-items:center;
}

.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:20px;
  font-size:12px;
  letter-spacing:1.6px;
  color:var(--brand);
  text-transform:uppercase;
}

.hero-eyebrow::before{
  content:"";
  width:26px;
  height:1px;
  background:var(--brand);
  opacity:.7;
}

.hero h1{
  font-size:clamp(30px,4vw,44px);
  line-height:1.28;
  letter-spacing:.4px;
  margin-bottom:20px;
}

.hero h1 .hl{
  color:var(--brand);
  text-shadow:0 0 24px rgba(43,224,200,.32);
}

.hero-lead{
  max-width:640px;
  font-size:16px;
  line-height:1.9;
  color:var(--text-2);
}

.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:30px;
}

.trust-row{
  display:flex;
  flex-wrap:wrap;
  gap:22px;
  margin-top:28px;
  padding-top:22px;
  border-top:1px solid var(--line);
}

.trust-item{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
}

.trust-item svg{
  width:16px;
  height:16px;
  fill:none;
  stroke:var(--brand);
  stroke-width:1.8;
  stroke-linecap:round;
  stroke-linejoin:round;
}

.hero-visual{
  position:relative;
}

.hero-photo{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  background:var(--bg-1);
  aspect-ratio:4/3;
}

.hero-photo img{
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:.9;
}

.hero-photo::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(5,7,14,.05),rgba(5,7,14,.72));
}

.hero-float{
  position:absolute;
  left:-22px;
  bottom:-26px;
  width:min(280px,90%);
  padding:18px 20px;
  border-radius:var(--radius-sm);
  background:var(--glass-strong);
  border:1px solid var(--line-strong);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow);
}

.hero-float .num{
  display:block;
  font-size:34px;
  font-weight:700;
  line-height:1.1;
  color:var(--accent);
}

.hero-float .label{
  display:block;
  margin-top:6px;
  font-size:12px;
  color:var(--text-3);
  letter-spacing:.6px;
}

.hero-float .hint{
  display:block;
  margin-top:12px;
  padding-top:12px;
  border-top:1px solid var(--line);
  font-size:12px;
  color:var(--text-2);
}

/* ---------- 步骤时间轴 ---------- */
.steps{
  position:relative;
  margin-top:8px;
}

.steps::before{
  content:"";
  position:absolute;
  left:11px;
  top:10px;
  bottom:26px;
  width:1px;
  background:linear-gradient(180deg,rgba(43,224,200,.65),rgba(43,224,200,.08));
}

.step{
  position:relative;
  padding-left:52px;
  padding-bottom:26px;
}

.step:last-child{padding-bottom:0;}

.step-node{
  position:absolute;
  left:2px;
  top:26px;
  width:19px;
  height:19px;
  border-radius:50%;
  background:var(--bg-0);
  border:2px solid var(--brand);
  box-shadow:0 0 0 4px rgba(43,224,200,.12),0 0 14px rgba(43,224,200,.55);
}

.step-card{
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  padding:24px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:border-color .22s var(--ease),transform .22s var(--ease),background .22s var(--ease);
}

.step-card:hover{
  border-color:var(--line-strong);
  transform:translateY(-3px);
  background:rgba(19,28,52,.66);
}

.step-head{
  display:flex;
  align-items:center;
  gap:14px;
  margin-bottom:10px;
}

.step-num{
  font-family:"JetBrains Mono","Barlow",ui-monospace,monospace;
  font-size:22px;
  font-weight:700;
  color:var(--accent);
  letter-spacing:1px;
  line-height:1;
  opacity:.92;
}

.step-head h3{
  font-size:18px;
  font-weight:600;
}

.step-card p{
  font-size:15px;
  color:var(--text-2);
  line-height:1.85;
}

.step-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:14px;
}

.step-tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:var(--radius-badge);
  font-size:12px;
  color:var(--info);
  background:rgba(76,201,240,.1);
  border:1px solid rgba(76,201,240,.26);
}

/* ---------- 数据横条 ---------- */
.stats{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:52px 0 44px;
}

.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
}

.stat{
  text-align:center;
  padding:0 12px;
  border-right:1px solid rgba(120,220,255,.08);
}

.stat:last-child{border-right:0;}

.stat .num{
  display:block;
  font-family:"Barlow","JetBrains Mono",ui-monospace,monospace;
  font-size:40px;
  font-weight:700;
  line-height:1.1;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
}

.stat .label{
  display:block;
  margin-top:10px;
  font-size:12px;
  letter-spacing:.8px;
  color:var(--text-3);
}

.stats-note{
  margin:28px 0 0;
  font-size:13px;
  color:var(--text-3);
  text-align:center;
}

/* ---------- 核对清单 ---------- */
.checklist{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:14px;
}

.check-item{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:18px 20px;
  border-radius:var(--radius-sm);
  background:rgba(19,28,52,.44);
  border:1px solid var(--line);
  transition:border-color .22s var(--ease),transform .22s var(--ease),background .22s var(--ease);
}

.check-item:hover{
  border-color:var(--line-strong);
  transform:translateY(-3px);
  background:rgba(19,28,52,.62);
}

.check-item svg{
  flex:0 0 auto;
  width:20px;
  height:20px;
  margin-top:4px;
  fill:none;
  stroke:var(--brand);
  stroke-width:1.8;
  stroke-linecap:round;
  stroke-linejoin:round;
}

.check-item strong{
  display:block;
  color:var(--text-1);
  font-size:15px;
  font-weight:600;
  margin-bottom:4px;
}

.check-item span{
  display:block;
  font-size:13px;
  color:var(--text-3);
  line-height:1.7;
}

/* ---------- 异常分类卡 ---------- */
.abnormal{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}

.abnormal .card{display:flex;flex-direction:column;gap:12px;}

.abnormal .card h3{font-size:17px;font-weight:600;}

.abnormal .card p{font-size:14px;color:var(--text-2);line-height:1.8;}

.abnormal .card .badge{align-self:flex-start;}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  border:1px solid var(--line-strong);
  background:
    linear-gradient(120deg,rgba(43,224,200,.14),rgba(10,16,32,.9) 55%),
    var(--bg-1);
  padding:44px 40px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow);
}

.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;
  top:-80px;
  width:260px;
  height:260px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(43,224,200,.18),transparent 68%);
  pointer-events:none;
}

.cta-band h2{
  font-size:clamp(22px,2.4vw,28px);
  margin-bottom:10px;
}

.cta-band p{
  max-width:560px;
  font-size:15px;
  color:var(--text-2);
}

.cta-band .btn{position:relative;z-index:2;}

/* ---------- 相关分类 ---------- */
.cat-list{
  display:grid;
  gap:12px;
}

.cat-row{
  display:flex;
  align-items:center;
  gap:20px;
  padding:20px 24px;
  border-radius:var(--radius-sm);
  background:rgba(19,28,52,.42);
  border:1px solid var(--line);
  color:var(--text-2);
  transition:border-color .22s var(--ease),transform .22s var(--ease),background .22s var(--ease),color .22s var(--ease);
}

.cat-row:hover{
  border-color:var(--brand);
  background:rgba(43,224,200,.07);
  color:var(--text-1);
  transform:translateX(3px);
}

.cat-row .idx{
  font-family:"JetBrains Mono",ui-monospace,monospace;
  font-size:15px;
  font-weight:700;
  color:var(--accent);
  letter-spacing:1px;
}

.cat-row .cat-name{
  flex:1 1 auto;
  min-width:0;
  font-size:16px;
  color:inherit;
  font-weight:500;
}

.cat-row .cat-desc{
  font-size:13px;
  color:var(--text-3);
  flex:0 1 320px;
}

.cat-row .arrow{
  flex:0 0 auto;
  width:18px;
  height:18px;
  fill:none;
  stroke:var(--brand);
  stroke-width:1.8;
  stroke-linecap:round;
  stroke-linejoin:round;
}

.cat-row.is-current{
  border-color:var(--line-strong);
  background:var(--glass);
}

/* ---------- 页脚 ---------- */
.footer{
  margin-top:40px;
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:60px 0 26px;
}

.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:36px;
}

.footer-brand{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:16px;
}

.footer-brand .logo-mark{
  width:38px;
  height:38px;
  font-size:17px;
}

.footer-brand strong{
  color:var(--text-1);
  font-size:16px;
  font-weight:700;
  letter-spacing:.4px;
}

.footer-col p{
  font-size:13px;
  color:var(--text-3);
  line-height:1.9;
}

.footer-col h4{
  font-size:14px;
  font-weight:600;
  margin-bottom:16px;
  color:var(--text-1);
}

.footer-col ul{display:grid;gap:10px;}

.footer-col li a{
  font-size:13px;
  color:var(--text-2);
}

.footer-col li a:hover{color:var(--brand);}

.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid var(--line);
  font-size:12px;
  color:var(--text-3);
}

/* ---------- 表单 & 弹层 ---------- */
.field{margin-bottom:16px;}

.field label{
  display:block;
  font-size:13px;
  color:var(--text-2);
  margin-bottom:8px;
}

.field input,
.field textarea{
  width:100%;
  padding:13px 15px;
  border-radius:var(--radius-sm);
  background:rgba(10,16,32,.7);
  border:1px solid rgba(120,220,255,.18);
  color:var(--text-1);
  font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  resize:vertical;
}

.field input::placeholder,
.field textarea::placeholder{color:var(--text-3);}

.field input:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(43,224,200,.16);
}

.field.has-error input,
.field.has-error textarea{
  border-color:var(--warn);
  box-shadow:0 0 0 3px rgba(255,107,107,.14);
}

.field-msg{
  margin:6px 0 0;
  font-size:13px;
  color:var(--warn);
  min-height:0;
}

.field-msg:empty{display:none;}

.check{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:13px;
  color:var(--text-3);
  line-height:1.7;
  margin:4px 0 14px;
  cursor:pointer;
}

.check input{
  margin-top:3px;
  width:16px;
  height:16px;
  accent-color:#2BE0C8;
}

.modal{
  position:fixed;
  inset:0;
  z-index:100;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:24px;
  background:rgba(5,7,14,.76);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
}

.modal[hidden]{display:none;}

.modal-card{
  position:relative;
  width:480px;
  max-width:100%;
  max-height:88vh;
  overflow-y:auto;
  padding:30px 28px;
  border-radius:20px;
  background:var(--glass-strong);
  border:1px solid var(--line-strong);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.1),var(--shadow);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  animation:modalIn .2s var(--ease);
}

@keyframes modalIn{
  from{opacity:0;transform:scale(.96) translateY(8px);}
  to{opacity:1;transform:scale(1) translateY(0);}
}

.modal-card h2{font-size:22px;margin-bottom:8px;}

.modal-sub{
  font-size:14px;
  color:var(--text-2);
  margin-bottom:22px;
}

.modal-close{
  position:absolute;
  top:14px;
  right:14px;
  width:32px;
  height:32px;
  display:grid;
  place-items:center;
  border-radius:50%;
  font-size:20px;
  line-height:1;
  color:var(--text-3);
  border:1px solid transparent;
}

.modal-close:hover{
  color:var(--text-1);
  border-color:var(--line);
  background:rgba(19,28,52,.6);
}

.modal-actions{
  display:flex;
  flex-direction:column;
  gap:10px;
  margin-top:18px;
}

.form-success{
  text-align:center;
  padding:14px 0 6px;
}

.form-success[hidden]{display:none;}

.success-icon{
  display:grid;
  place-items:center;
  width:52px;
  height:52px;
  margin:0 auto 16px;
  border-radius:50%;
  background:rgba(53,208,127,.14);
  border:1px solid rgba(53,208,127,.4);
  color:var(--ok);
  font-size:24px;
}

.form-success h3{font-size:18px;margin-bottom:8px;}

.form-success p{font-size:14px;color:var(--text-2);}

/* ---------- 状态组件 ---------- */
.skeleton{
  border-radius:var(--radius-sm);
  background:linear-gradient(90deg,rgba(19,28,52,.5) 25%,rgba(43,224,200,.1) 37%,rgba(19,28,52,.5) 63%);
  background-size:400% 100%;
  animation:shimmer 1.4s ease infinite;
  min-height:96px;
}

@keyframes shimmer{
  from{background-position:100% 0;}
  to{background-position:0 0;}
}

.empty-state{
  text-align:center;
  padding:40px 24px;
  border-radius:var(--radius);
  border:1px dashed var(--line-strong);
  background:rgba(19,28,52,.36);
}

.empty-state svg{
  width:34px;
  height:34px;
  margin:0 auto 14px;
  fill:none;
  stroke:var(--text-3);
  stroke-width:1.6;
  stroke-linecap:round;
  stroke-linejoin:round;
}

.empty-state p{font-size:14px;color:var(--text-3);margin-bottom:16px;}

.error-card{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  border-radius:var(--radius-sm);
  border:1px solid rgba(255,107,107,.4);
  background:rgba(255,107,107,.08);
}

.error-card p{font-size:14px;color:#ffd0d0;margin:0;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--sidebar-w:76px;}

  .sidebar{padding:20px 12px 16px;align-items:center;}

  .brand{
    justify-content:center;
    padding:6px 0 16px;
    width:100%;
  }

  .brand-text{display:none;}

  .nav{width:100%;align-items:center;}

  .nav-item{
    justify-content:center;
    padding:0;
    width:48px;
    height:48px;
  }

  .nav-label{display:none;}

  .nav-item.is-active::before{left:-12px;}

  .nav-item::after{
    content:attr(data-tip);
    position:absolute;
    left:60px;
    top:50%;
    transform:translateY(-50%) translateX(-6px);
    white-space:nowrap;
    padding:6px 10px;
    border-radius:8px;
    background:var(--bg-2);
    border:1px solid var(--line);
    color:var(--text-1);
    font-size:12px;
    opacity:0;
    pointer-events:none;
    transition:opacity .2s var(--ease),transform .2s var(--ease);
    z-index:5;
  }

  .nav-item:hover::after{opacity:1;transform:translateY(-50%) translateX(0);}

  .sidebar-cta{
    width:48px;
    min-height:48px;
    padding:0;
    border-radius:50%;
  }

  .sidebar-cta span{display:none;}

  .sidebar-note{display:none;}

  .hero-grid{grid-template-columns:1fr;gap:56px;}
  .hero-visual{max-width:560px;}

  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px;}
  .stat:nth-child(2){border-right:0;}
  .stat:nth-child(3){border-top:1px solid rgba(120,220,255,.08);padding-top:24px;}
  .stat:nth-child(4){border-top:1px solid rgba(120,220,255,.08);padding-top:24px;}

  .abnormal{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:30px;}
}

@media (max-width:1023px){
  :root{--sidebar-w:0px;}

  .topbar{display:flex;}

  .content{
    margin-left:0;
    padding-top:var(--topbar-h);
  }

  .sidebar{
    width:280px;
    align-items:stretch;
    padding:24px 18px 20px;
    transform:translateX(-100%);
    transition:transform .24s var(--ease);
    z-index:65;
  }

  .sidebar.is-open{transform:translateX(0);}

  .brand{justify-content:flex-start;padding:8px 10px 16px;}
  .brand-text{display:flex;}
  .nav{align-items:stretch;}
  .nav-item{justify-content:flex-start;padding:0 12px;width:100%;height:48px;}
  .nav-label{display:inline;}
  .nav-item::after{display:none;}
  .nav-item.is-active::before{left:-18px;}
  .sidebar-cta{width:100%;min-height:48px;border-radius:999px;}
  .sidebar-cta span{display:inline;}
  .sidebar-note{display:block;}

  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .hero{padding:24px 0 8px;}
  .hero-float{position:static;width:100%;margin-top:16px;}
  .steps::before{left:9px;}
  .step{padding-left:36px;}
  .step-node{left:0;top:24px;width:17px;height:17px;}
  .checklist{grid-template-columns:1fr;}
  .abnormal{grid-template-columns:1fr;}
  .cta-band{padding:32px 24px;}
  .cat-row{flex-wrap:wrap;gap:12px;}
  .cat-row .cat-desc{flex:1 1 100%;}
}

@media (max-width:767px){
  body{font-size:15px;line-height:1.8;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:26px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:22px;}
  .stat .num{font-size:32px;}
  .step-card{padding:20px;}
  .card{padding:20px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;}
  .modal{padding:16px;}
  .modal-card{padding:26px 20px;}
  .trust-row{gap:14px;}
}

@media (max-width:480px){
  .container{padding:0 16px;}
  .hero h1{font-size:26px;}
  .section-title{font-size:22px;}
  .stat .num{font-size:28px;}
  .modal-card{border-radius:16px;}
}

@media (prefers-reduced-motion:reduce){
  *,
  *::before,
  *::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
}

/* roulang page: category4 */
:root{
  --bg-0:#05070E;
  --bg-1:#0A1020;
  --bg-2:#0F1730;
  --brand:#2BE0C8;
  --accent:#FFB23E;
  --violet:#7C5CFF;
  --success:#35D07F;
  --warn:#FF6B6B;
  --info:#4CC9F0;
  --text-1:#EAF2FF;
  --text-2:#A8B6D1;
  --text-3:#6E7C99;
  --glass:rgba(19,28,52,.55);
  --glass-strong:rgba(19,28,52,.78);
  --line:rgba(120,220,255,.14);
  --line-strong:rgba(120,220,255,.24);
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:12px;
  --radius-xs:8px;
  --shadow-card:0 20px 40px -20px rgba(0,0,0,.75);
  --shadow-deep:0 40px 80px -30px rgba(0,0,0,.85);
  --ease:cubic-bezier(.22,.61,.36,1);
  --t:220ms;
  --shell:236px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-2);
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(120,220,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,220,255,.045) 1px,transparent 1px);
  background-size:46px 46px;
  -webkit-mask-image:radial-gradient(circle at 72% 6%,#000 0%,transparent 72%);
  mask-image:radial-gradient(circle at 72% 6%,#000 0%,transparent 72%);
}
body::after{
  content:"";
  position:fixed;
  top:-22%;
  right:-14%;
  width:840px;
  height:840px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(43,224,200,.14),rgba(43,224,200,0) 62%);
  filter:blur(18px);
  pointer-events:none;
  z-index:0;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{color:var(--text-1);margin:0;font-weight:700;line-height:1.35}
p{margin:0 0 1.2em}
ul{margin:0;padding:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--brand);color:#04121A;padding:10px 16px;border-radius:0 0 12px 0;font-weight:700;
}
.skip-link:focus{left:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.no-scroll{overflow:hidden}

/* ---------- 侧栏 ---------- */
.sidebar{
  position:fixed;
  left:0;top:0;bottom:0;
  width:var(--shell);
  z-index:80;
  display:flex;
  flex-direction:column;
  gap:22px;
  padding:24px 16px 20px;
  background:linear-gradient(180deg,rgba(10,16,32,.97),rgba(5,7,14,.99));
  border-right:1px solid var(--line);
  transition:transform var(--t) var(--ease),width var(--t) var(--ease);
}
.logo{
  display:flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
  padding:6px 8px;
  border-radius:var(--radius-sm);
}
.logo-mark{
  flex:0 0 auto;
  width:40px;height:40px;
  border-radius:12px;
  display:grid;place-items:center;
  font-size:17px;font-weight:700;
  color:#04121A;
  background:linear-gradient(135deg,var(--brand),#1FB6A4);
  box-shadow:0 0 0 1px rgba(43,224,200,.35),0 8px 24px -8px rgba(43,224,200,.6);
}
.logo-text{display:flex;flex-direction:column;line-height:1.25}
.logo-text strong{
  font-size:17px;font-weight:700;color:var(--text-1);letter-spacing:.5px;white-space:nowrap;
}
.logo-text em{
  font-style:normal;font-size:12px;color:var(--text-3);letter-spacing:2px;
}
.nav{display:flex;flex-direction:column;gap:6px;flex:1;min-height:0}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  height:44px;
  padding:0 12px;
  border-radius:var(--radius-sm);
  text-decoration:none;
  color:var(--text-2);
  font-size:15px;
  border:1px solid transparent;
  transition:background var(--t) var(--ease),color var(--t) var(--ease),border-color var(--t) var(--ease);
}
.nav-item svg{
  width:20px;height:20px;flex:0 0 auto;
  fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;
}
.nav-item:hover{background:rgba(43,224,200,.08);color:var(--text-1)}
.nav-item.is-active{
  color:var(--text-1);
  background:var(--glass);
  border-color:var(--line-strong);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.nav-item.is-active::before{
  content:"";
  position:absolute;left:-1px;top:9px;bottom:9px;
  width:3px;border-radius:2px;
  background:var(--brand);
  box-shadow:0 0 12px rgba(43,224,200,.85);
}
.nav-item.is-active svg{filter:drop-shadow(0 0 6px rgba(43,224,200,.7))}
.sidebar-foot{display:flex;flex-direction:column;gap:12px}
.copy{
  font-size:12px;line-height:1.7;color:var(--text-3);margin:0;letter-spacing:.3px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 24px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:500;
  text-decoration:none;
  cursor:pointer;
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),filter var(--t) var(--ease),background var(--t) var(--ease),border-color var(--t) var(--ease),color var(--t) var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),#1CB49F);
  color:#04201C;
  font-weight:700;
  box-shadow:0 0 0 1px rgba(43,224,200,.35),0 8px 24px -6px rgba(43,224,200,.45);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(43,224,200,.5),0 12px 30px -6px rgba(43,224,200,.6)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  background:var(--glass);
  border-color:var(--line-strong);
  color:var(--text-1);
  backdrop-filter:blur(14px) saturate(140%);
}
.btn-ghost:hover{border-color:rgba(43,224,200,.6);background:rgba(43,224,200,.08);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-block{width:100%}
.btn:disabled{opacity:.45;cursor:not-allowed}

/* ---------- 顶部栏（移动） ---------- */
.topbar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:56px;
  z-index:95;
  align-items:center;
  gap:12px;
  padding:0 14px;
  background:rgba(10,16,32,.94);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.burger{
  width:40px;height:40px;
  display:grid;place-content:center;gap:5px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:10px;
  cursor:pointer;
}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1);transition:transform var(--t) var(--ease)}
.topbar .logo{padding:0;gap:8px;flex:1}
.topbar .logo-mark{width:32px;height:32px;border-radius:9px;font-size:14px}
.topbar .logo-text strong{font-size:14px;letter-spacing:.5px}
.topbar .logo-text em{font-size:10px;letter-spacing:1.5px}
.icon-btn{
  width:40px;height:40px;
  display:grid;place-items:center;
  border-radius:999px;
  border:1px solid rgba(43,224,200,.35);
  background:linear-gradient(135deg,var(--brand),#1CB49F);
  color:#04201C;
  cursor:pointer;
  box-shadow:0 8px 20px -8px rgba(43,224,200,.6);
}
.icon-btn svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.drawer-mask{
  position:fixed;inset:0;z-index:88;
  background:rgba(5,7,14,.72);
  backdrop-filter:blur(4px);
}
.drawer-mask[hidden]{display:none}

/* ---------- 主区 ---------- */
.main{
  position:relative;
  z-index:1;
  margin-left:var(--shell);
  min-height:100vh;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);
  padding:26px 0 6px;
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--text-3);text-decoration:none;transition:color var(--t) var(--ease)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(110,124,153,.6)}
.breadcrumb .current{color:var(--text-1)}

/* ---------- Hero ---------- */
.page-hero{
  display:grid;
  grid-template-columns:1.32fr 1fr;
  gap:40px;
  align-items:center;
  margin-top:14px;
  padding:40px;
  border-radius:24px;
  border:1px solid var(--line);
  background:
    linear-gradient(140deg,rgba(10,16,32,.86),rgba(5,7,14,.94)),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  box-shadow:var(--shadow-deep);
  position:relative;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,224,200,.14),transparent 65%);
  pointer-events:none;
}
.hero-copy{position:relative;z-index:2}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;
  border-radius:var(--radius-xs);
  font-size:12px;letter-spacing:.5px;
  color:var(--accent);
  background:rgba(255,178,62,.12);
  border:1px solid rgba(255,178,62,.32);
}
.badge.badge-brand{color:var(--brand);background:rgba(43,224,200,.12);border-color:rgba(43,224,200,.32)}
.page-hero h1{
  font-size:clamp(30px,4vw,44px);
  font-weight:700;
  letter-spacing:.3px;
  margin:16px 0 16px;
}
.lead{font-size:16px;color:var(--text-2);max-width:52ch}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:26px 0 20px}
.trust-row{
  display:flex;flex-wrap:wrap;gap:18px;
  list-style:none;
  font-size:13px;color:var(--text-3);
}
.trust-row li{display:flex;align-items:center;gap:6px}
.trust-row svg{width:15px;height:15px;fill:none;stroke:var(--brand);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.hero-visual{position:relative;z-index:2}
.hero-visual img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--radius);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card);
}
.float-card{
  position:absolute;
  left:-18px;bottom:-18px;
  width:190px;
  padding:14px 16px;
  border-radius:var(--radius-sm);
  background:var(--glass-strong);
  border:1px solid var(--line-strong);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
}
.float-card b{display:block;font-size:24px;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1.2}
.float-card span{font-size:12px;color:var(--text-3)}

/* ---------- 数据横条 ---------- */
.stat-band{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
  margin-top:28px;
  padding:30px 32px;
  border-radius:18px;
  border-top:1px solid var(--line-strong);
  border-bottom:1px solid var(--line-strong);
  background:linear-gradient(180deg,rgba(10,16,32,.95),rgba(15,23,48,.82));
}
.stat{text-align:center}
.stat b{
  display:block;
  font-size:40px;
  line-height:1.15;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  letter-spacing:.5px;
}
.stat span{font-size:12px;color:var(--text-3);letter-spacing:.4px}
.stat-note{font-size:13px;color:var(--text-3);margin:12px 0 0}

/* ---------- 板块 ---------- */
.section{padding:64px 0}
.section-head{max-width:800px;margin-bottom:32px}
.section-title{
  position:relative;
  padding-left:16px;
  font-size:clamp(24px,2.6vw,30px);
  font-weight:700;
  margin-bottom:12px;
}
.section-title::before{
  content:"";
  position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:2px;
  background:var(--brand);
  box-shadow:0 0 12px rgba(43,224,200,.7);
}
.section-note{font-size:15px;color:var(--text-2);margin:0}

/* ---------- 表格 ---------- */
.table-wrap{
  overflow-x:auto;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
  -webkit-overflow-scrolling:touch;
}
.data-table{
  width:100%;
  min-width:860px;
  border-collapse:collapse;
  font-size:15px;
}
.data-table thead th{
  position:sticky;top:0;
  text-align:left;
  padding:16px 18px;
  font-size:14px;
  font-weight:700;
  color:var(--text-1);
  white-space:nowrap;
  background:rgba(43,224,200,.10);
  border-bottom:1px solid var(--line-strong);
  letter-spacing:.3px;
}
.data-table tbody td{
  padding:16px 18px;
  color:var(--text-2);
  vertical-align:top;
  border-bottom:1px solid rgba(120,220,255,.08);
}
.data-table tbody tr:nth-child(even){background:rgba(120,220,255,.035)}
.data-table tbody tr:hover{background:rgba(43,224,200,.06)}
.data-table tbody tr:last-child td{border-bottom:0}
.data-table th[scope="row"]{
  color:var(--text-1);
  font-weight:700;
  white-space:nowrap;
}
.level{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;
  border-radius:var(--radius-xs);
  font-size:12px;
  white-space:nowrap;
  border:1px solid;
}
.level-high{color:var(--brand);background:rgba(43,224,200,.12);border-color:rgba(43,224,200,.34)}
.level-mid{color:var(--accent);background:rgba(255,178,62,.12);border-color:rgba(255,178,62,.34)}
.table-hint{font-size:13px;color:var(--text-3);margin:14px 0 0}

/* ---------- 要点卡 ---------- */
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.point-card{
  position:relative;
  padding:26px 24px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
  transition:transform var(--t) var(--ease),border-color var(--t) var(--ease),background var(--t) var(--ease);
}
.point-card:hover{transform:translateY(-3px);border-color:rgba(43,224,200,.55);background:rgba(19,28,52,.7)}
.point-card .card-num{
  display:block;
  font-size:12px;
  letter-spacing:2px;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  margin-bottom:14px;
}
.point-card .card-icon{
  width:44px;height:44px;
  border-radius:12px;
  display:grid;place-items:center;
  background:rgba(43,224,200,.1);
  border:1px solid rgba(43,224,200,.28);
  margin-bottom:16px;
}
.point-card .card-icon svg{width:22px;height:22px;fill:none;stroke:var(--brand);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.point-card h3{font-size:18px;font-weight:600;margin-bottom:10px}
.point-card p{font-size:15px;color:var(--text-2);margin:0}

/* ---------- 图文带 ---------- */
.media-band{
  margin:0;
  display:grid;
  grid-template-columns:1.1fr 1fr;
  gap:32px;
  align-items:center;
  padding:28px;
  border-radius:var(--radius-lg);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
}
.media-band img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--radius-sm);
}
.media-band figcaption{font-size:13px;color:var(--text-3);margin-top:10px;text-align:center}
.media-copy h3{font-size:20px;margin-bottom:12px}
.media-copy p{font-size:15px;margin:0}

/* ---------- 风险与动作 ---------- */
.risk-list{display:grid;gap:12px}
.risk-item{
  display:grid;
  grid-template-columns:150px 1fr;
  gap:18px;
  align-items:start;
  padding:18px 22px;
  border-radius:14px;
  background:rgba(15,23,48,.6);
  border:1px solid rgba(120,220,255,.12);
  transition:border-color var(--t) var(--ease),background var(--t) var(--ease),transform var(--t) var(--ease);
}
.risk-item:hover{border-color:rgba(43,224,200,.42);background:rgba(19,28,52,.75);transform:translateX(3px)}
.risk-tag{
  display:inline-flex;align-items:center;justify-content:center;
  height:26px;padding:0 12px;
  border-radius:var(--radius-xs);
  font-size:12px;
  color:var(--brand);
  background:rgba(43,224,200,.1);
  border:1px solid rgba(43,224,200,.28);
  white-space:nowrap;
  justify-self:start;
}
.risk-item p{margin:0;font-size:15px}

/* ---------- 分类导航 ---------- */
.cat-nav{display:grid;gap:12px}
.cat-nav a{
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:center;
  gap:18px;
  padding:18px 22px;
  border-radius:14px;
  text-decoration:none;
  color:var(--text-1);
  font-size:15px;
  background:rgba(15,23,48,.55);
  border:1px solid var(--line);
  transition:border-color var(--t) var(--ease),background var(--t) var(--ease),transform var(--t) var(--ease);
}
.cat-nav a:hover{border-color:rgba(43,224,200,.5);background:rgba(19,28,52,.78);transform:translateY(-2px)}
.cat-nav .idx{
  font-size:12px;
  letter-spacing:1px;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.cat-nav .arrow{color:var(--text-3);font-size:13px}
.cat-nav a[aria-current="page"]{border-color:rgba(255,178,62,.4)}
.cat-nav a[aria-current="page"] .idx{color:var(--accent)}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  margin:8px 0 24px;
  padding:38px 40px;
  border-radius:var(--radius-lg);
  border:1px solid rgba(43,224,200,.3);
  background:
    radial-gradient(120% 160% at 10% 0%,rgba(43,224,200,.16),transparent 60%),
    rgba(10,16,32,.92);
  box-shadow:var(--shadow-card);
}
.cta-band h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:8px}
.cta-band p{margin:0;font-size:15px;max-width:56ch}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 弹层 ---------- */
.modal{position:fixed;inset:0;z-index:130;display:grid;place-items:center;padding:20px}
.modal[hidden]{display:none}
.modal-mask{position:absolute;inset:0;background:rgba(5,7,14,.72);backdrop-filter:blur(4px)}
.modal-card{
  position:relative;
  width:480px;
  max-width:92vw;
  padding:28px;
  border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(19,28,52,.97),rgba(10,16,32,.99));
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-deep);
  animation:pop 200ms var(--ease);
}
@keyframes pop{from{opacity:0;transform:scale(.96)}to{opacity:1;transform:none}}
.modal-card h3{font-size:20px;margin-bottom:8px}
.modal-card .modal-sub{font-size:14px;color:var(--text-3);margin:0 0 20px}
.modal-close{
  position:absolute;top:16px;right:16px;
  width:32px;height:32px;
  display:grid;place-items:center;
  border-radius:10px;
  background:transparent;
  border:1px solid var(--line);
  color:var(--text-2);
  cursor:pointer;
  transition:border-color var(--t) var(--ease),color var(--t) var(--ease);
}
.modal-close:hover{border-color:rgba(43,224,200,.6);color:var(--text-1)}
.modal-close svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px}
.field input{
  width:100%;
  height:46px;
  padding:0 14px;
  border-radius:var(--radius-sm);
  background:rgba(10,16,32,.7);
  border:1px solid rgba(120,220,255,.18);
  color:var(--text-1);
  transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.field input::placeholder{color:rgba(110,124,153,.85)}
.field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(43,224,200,.16)}
.field.is-error input{border-color:var(--warn);box-shadow:0 0 0 3px rgba(255,107,107,.14)}
.field-msg{display:none;font-size:13px;color:var(--warn);margin-top:6px}
.field.is-error .field-msg{display:block}
.check-row{display:flex;align-items:flex-start;gap:10px;margin:6px 0 20px}
.check-row input{width:16px;height:16px;margin-top:4px;accent-color:#2BE0C8}
.check-row label{font-size:13px;color:var(--text-3);line-height:1.7}
.modal-actions{display:flex;gap:12px;flex-wrap:wrap}
.modal-actions .btn{flex:1;min-width:140px}
.success-card{
  display:none;
  text-align:center;
  padding:16px 4px 4px;
}
.success-card .ok{
  width:52px;height:52px;margin:0 auto 16px;
  border-radius:50%;
  display:grid;place-items:center;
  background:rgba(53,208,127,.14);
  border:1px solid rgba(53,208,127,.45);
}
.success-card .ok svg{width:24px;height:24px;fill:none;stroke:var(--success);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.success-card h4{font-size:18px;margin-bottom:8px}
.success-card p{font-size:14px;color:var(--text-3);margin:0}

/* ---------- 页脚 ---------- */
.footer{
  margin-top:64px;
  padding:56px 0 24px;
  background:var(--bg-1);
  border-top:1px solid var(--line);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;color:var(--text-1)}
.footer-brand strong{font-size:16px;letter-spacing:.4px}
.footer-brand .logo-mark{width:36px;height:36px;border-radius:10px;font-size:15px}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:16px;letter-spacing:.4px}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col a{font-size:13px;color:var(--text-2);text-decoration:none;transition:color var(--t) var(--ease)}
.footer-col a:hover{color:var(--brand)}
.footer-col p{font-size:13px;color:var(--text-3);line-height:1.8;margin:0 0 10px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  margin-top:40px;padding-top:20px;
  border-top:1px solid rgba(120,220,255,.12);
  font-size:12px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1439px){
  .cards-3{grid-template-columns:repeat(3,1fr)}
}
@media (min-width:1024px) and (max-width:1199px){
  :root{--shell:76px}
  .sidebar{width:76px;padding:20px 12px;align-items:center}
  .logo{justify-content:center;padding:6px 0}
  .logo-text{display:none}
  .nav{width:100%}
  .nav-item{justify-content:center;padding:0}
  .nav-item .nav-label{
    position:absolute;left:56px;top:50%;
    transform:translateY(-50%) translateX(-6px);
    opacity:0;pointer-events:none;white-space:nowrap;
    padding:6px 12px;
    border-radius:var(--radius-xs);
    background:rgba(19,28,52,.96);
    border:1px solid var(--line-strong);
    font-size:13px;color:var(--text-1);
    box-shadow:var(--shadow-card);
    transition:opacity var(--t) var(--ease),transform var(--t) var(--ease);
    z-index:5;
  }
  .nav-item:hover .nav-label{opacity:1;transform:translateY(-50%) translateX(0)}
  .sidebar-foot .btn{padding:0;width:48px}
  .sidebar-foot .btn span{display:none}
  .copy{display:none}
  .cards-3{grid-template-columns:repeat(2,1fr)}
  .stat-band{grid-template-columns:repeat(2,1fr);gap:28px}
  .page-hero{grid-template-columns:1.2fr 1fr;padding:32px}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr 1fr;gap:24px}
}
@media (max-width:1023px){
  .topbar{display:flex}
  .sidebar{
    width:280px;
    transform:translateX(-100%);
    z-index:100;
    align-items:stretch;
    padding:24px 16px 20px;
    box-shadow:var(--shadow-deep);
  }
  .sidebar.is-open{transform:translateX(0)}
  .sidebar .logo{justify-content:flex-start;padding:6px 8px}
  .sidebar .logo-text{display:flex}
  .sidebar .nav-item{justify-content:flex-start;padding:0 12px}
  .sidebar .nav-item .nav-label{position:static;opacity:1;transform:none;background:none;border:0;padding:0;box-shadow:none}
  .sidebar .sidebar-foot .btn{width:100%;padding:0 24px}
  .sidebar .sidebar-foot .btn span{display:inline}
  .sidebar .copy{display:block}
  .main{margin-left:0;padding-top:56px}
  .page-hero{grid-template-columns:1fr;gap:28px;padding:30px}
  .hero-visual{order:2}
  .hero-visual img{aspect-ratio:16/10}
  .float-card{left:auto;right:16px;bottom:-14px}
  .media-band{grid-template-columns:1fr;gap:20px}
  .cards-3{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (min-width:1024px){
  .drawer-mask{display:none !important}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .section{padding:48px 0}
  .stat-band{grid-template-columns:repeat(2,1fr);padding:24px 20px;gap:22px}
  .stat b{font-size:32px}
  .cards-3{grid-template-columns:1fr}
  .risk-item{grid-template-columns:1fr;gap:10px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .cta-band{padding:28px 22px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
  .page-hero{padding:24px}
  .breadcrumb{padding-top:18px}
  .cat-nav a{grid-template-columns:auto 1fr;gap:14px}
  .cat-nav .arrow{display:none}
}
@media (max-width:520px){
  body{font-size:15px}
  .page-hero h1{font-size:26px}
  .lead{font-size:15px}
  .section-title{font-size:22px}
  .footer-grid{grid-template-columns:1fr}
  .float-card{position:static;width:100%;margin-top:14px}
  .modal-card{padding:22px}
  .modal-actions .btn{min-width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}