/* roulang page: index */
:root{
  --brand-900:#140F2E;
  --brand-700:#2B1E5C;
  --brand-500:#5B3FD1;
  --brand-400:#7C5CF0;
  --aurora:#21C7B6;
  --medal:#F2B441;
  --bg-soft:#F7F5FF;
  --bg-softer:#FBFAFF;
  --text:#1F1B33;
  --text-weak:#5B5678;
  --line:#E6E1F5;
  --radius-lg:24px;
  --radius-md:18px;
  --radius-btn:14px;
  --shadow-card:0 8px 30px rgba(36,26,74,.08);
  --shadow-hover:0 16px 44px rgba(36,26,74,.14);
  --shadow-nav:0 6px 24px rgba(20,15,46,.10);
  --ease:cubic-bezier(.2,.8,.2,1);
  --grad:linear-gradient(135deg,#5B3FD1 0%,#21C7B6 100%);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg-softer);
  letter-spacing:.01em;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1{font-size:40px;font-weight:700;line-height:1.25;}
h2{font-size:28px;font-weight:600;line-height:1.35;}
h3{font-size:20px;font-weight:600;line-height:1.5;}
:focus-visible{outline:2px solid var(--aurora);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section--soft{background:var(--bg-soft);}
.section--white{background:#fff;}
.section--dark{background:var(--brand-900);color:#fff;position:relative;overflow:hidden;}
.section--dark::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.10) 1px,transparent 1px);
  background-size:26px 26px;opacity:.55;pointer-events:none;
}
.section--dark > *{position:relative;z-index:1;}
.tnum{font-variant-numeric:tabular-nums;font-weight:700;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(251,250,255,.88);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:var(--shadow-nav);
}
.nav-inner{
  display:flex;align-items:center;gap:20px;
  min-height:74px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 18px rgba(91,63,209,.32);
}
.brand-mark span{width:12px;height:12px;border-radius:50%;background:#fff;opacity:.92;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-size:19px;font-weight:700;letter-spacing:.02em;}
.brand-text em{font-style:normal;font-size:12px;color:var(--text-weak);letter-spacing:.14em;}
.nav-chips{
  display:flex;align-items:center;gap:8px;
  margin:0 auto;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  padding:6px 4px;
  scroll-snap-type:x proximity;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;scroll-snap-align:center;
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 16px;border-radius:999px;
  font-size:14px;font-weight:600;white-space:nowrap;
  border:1px solid var(--line);
  color:var(--brand-700);background:#fff;
  transition:all 200ms var(--ease);
}
.chip:hover{background:rgba(33,199,182,.08);border-color:rgba(33,199,182,.45);}
.chip.is-active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 8px 20px rgba(91,63,209,.28);}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:all 200ms var(--ease);
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 26px rgba(91,63,209,.28);}
.btn-primary:hover{filter:brightness(1.06);box-shadow:0 14px 34px rgba(91,63,209,.36);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--brand-700);}
.btn-ghost:hover{border-color:rgba(33,199,182,.55);background:rgba(33,199,182,.06);}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.45);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff;}
.btn-sm{padding:9px 18px;font-size:14px;}
.link-arrow{color:var(--brand-500);font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px;}
.link-arrow:hover{color:var(--aurora);}
.hamburger{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;cursor:pointer;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--brand-700);border-radius:2px;position:relative;}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-700);border-radius:2px;
}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}
.drawer{
  position:fixed;inset:0;z-index:90;background:rgba(20,15,46,.96);
  display:none;flex-direction:column;padding:24px;
}
.drawer.is-open{display:flex;}
.drawer-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px;}
.drawer-head .brand-text b{color:#fff;}
.drawer-head .brand-text em{color:rgba(255,255,255,.6);}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.25);
  background:transparent;color:#fff;font-size:22px;cursor:pointer;
}
.drawer-links{display:flex;flex-direction:column;gap:12px;}
.drawer-links a{
  padding:16px 18px;border-radius:16px;color:#fff;font-size:16px;font-weight:600;
  border:1px solid rgba(255,255,255,.16);
}
.drawer-links a.is-active{background:var(--grad);border-color:transparent;}
.drawer-cta{margin-top:auto;padding-top:24px;}
.drawer-cta .btn{width:100%;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background:
    radial-gradient(900px 420px at 12% -10%,rgba(124,92,240,.28),transparent 60%),
    radial-gradient(700px 380px at 90% 0%,rgba(33,199,182,.20),transparent 62%),
    var(--brand-900);
  color:#fff;overflow:hidden;
  padding:76px 0 108px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.10) 1px,transparent 1px);
  background-size:28px 28px;opacity:.5;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:120px;
  background:linear-gradient(180deg,rgba(247,245,255,0),rgba(247,245,255,.95));
  z-index:2;pointer-events:none;
}
.hero-inner{
  position:relative;z-index:3;
  display:grid;grid-template-columns:1.02fr 1fr;gap:56px;align-items:center;
  min-height:600px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(33,199,182,.16);color:#9FF3E8;border:1px solid rgba(33,199,182,.35);
}
.hero h1{margin:20px 0 18px;color:#fff;}
.hero-sub{font-size:18px;line-height:1.8;color:rgba(255,255,255,.80);max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:32px;}
.hero-trust{margin-top:22px;font-size:14px;color:rgba(255,255,255,.62);}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:28px;box-shadow:0 24px 60px rgba(0,0,0,.42);
}
.hero-media::after{
  content:"";position:absolute;inset:0;border-radius:28px;
  background:linear-gradient(140deg,rgba(20,15,46,.55),rgba(43,30,92,.15) 60%,rgba(33,199,182,.20));
  pointer-events:none;
}
.hero-badges{
  position:absolute;left:20px;right:20px;bottom:20px;z-index:4;
  display:flex;flex-wrap:wrap;gap:10px;
}
.data-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 16px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(255,255,255,.78);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  color:var(--brand-900);border:1px solid rgba(255,255,255,.6);
}
.data-badge b{font-variant-numeric:tabular-nums;font-weight:700;font-size:15px;}
.data-badge.is-cyan{background:rgba(33,199,182,.86);color:#08302C;border-color:rgba(255,255,255,.5);}
.data-badge.is-gold{background:rgba(242,180,65,.88);color:#3A2600;border-color:rgba(255,255,255,.5);}
.badge-dot{width:7px;height:7px;border-radius:50%;background:currentColor;opacity:.7;}

/* ---------- 通用区块头 ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;}
.section-head .tagline{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand-500);
  background:rgba(91,63,209,.08);padding:6px 14px;border-radius:999px;margin-bottom:14px;
}
.section--dark .section-head .tagline{background:rgba(33,199,182,.16);color:#9FF3E8;}
.section-head h2{max-width:660px;}
.section-head p.lead{margin-top:12px;color:var(--text-weak);font-size:16px;max-width:680px;}
.section--dark .section-head p.lead{color:rgba(255,255,255,.72);}

/* ---------- 权益对比表 ---------- */
.table-shell{
  border-radius:var(--radius-lg);background:#fff;box-shadow:var(--shadow-card);
  overflow:hidden;border:1px solid var(--line);
}
.table-scroll{overflow-x:auto;scrollbar-width:thin;}
.benefit-table{width:100%;border-collapse:collapse;min-width:760px;}
.benefit-table th,.benefit-table td{padding:0 22px;height:56px;text-align:left;font-size:15px;}
.benefit-table thead th{
  height:auto;padding:24px 22px 20px;font-size:16px;font-weight:600;
  background:#fff;vertical-align:bottom;position:relative;
}
.benefit-table thead th:first-child{font-size:14px;color:var(--text-weak);font-weight:600;}
.benefit-table thead th.col-recommend{background:rgba(91,63,209,.045);}
.benefit-table thead th.col-recommend .th-name{font-size:17.2px;}
.benefit-table thead th.col-recommend::before{
  content:"";position:absolute;top:0;left:0;right:0;height:6px;background:var(--grad);
}
.rec-tag{
  display:inline-block;margin-left:8px;padding:2px 10px;border-radius:999px;
  font-size:12px;font-weight:700;background:rgba(242,180,65,.18);color:#8A5A00;
  border:1px solid rgba(242,180,65,.55);vertical-align:middle;
}
.benefit-table tbody tr:nth-child(even){background:rgba(91,63,209,.02);}
.benefit-table tbody td{border-top:1px solid rgba(230,225,245,.9);color:var(--text);}
.benefit-table tbody td.col-feature{color:var(--text-weak);font-size:14px;font-weight:600;}
.benefit-table tbody td.col-recommend{background:rgba(91,63,209,.035);}
.tick{color:var(--aurora);font-weight:700;}
.dash{color:#B7B1CE;}
.value-badge{
  display:inline-block;padding:3px 11px;border-radius:999px;font-size:13px;font-weight:700;
  background:rgba(242,180,65,.18);color:#7A4E00;font-variant-numeric:tabular-nums;
}
.table-note{margin-top:16px;font-size:14px;color:var(--text-weak);}

/* ---------- 等级亮点 ---------- */
.level-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.level-card{
  display:flex;gap:20px;align-items:flex-start;
  padding:28px;border-radius:var(--radius-lg);background:#fff;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:all 200ms var(--ease);
}
.level-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(33,199,182,.42);}
.seal{
  flex:0 0 auto;width:52px;height:52px;border-radius:14px;
  border:2px solid rgba(242,180,65,.75);color:#8A5A00;
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:18px;font-variant-numeric:tabular-nums;
  background:rgba(242,180,65,.10);
}
.level-card h3{margin-bottom:6px;}
.level-card p{font-size:15px;color:var(--text-weak);}
.micro-metric{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  font-size:13px;font-weight:600;color:var(--brand-500);
  background:rgba(33,199,182,.10);padding:5px 12px;border-radius:999px;
}
.micro-metric b{font-variant-numeric:tabular-nums;}

/* ---------- 专属内容 ---------- */
.content-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.content-card{
  border-radius:var(--radius-lg);overflow:hidden;background:#fff;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  display:flex;flex-direction:column;transition:all 200ms var(--ease);
}
.content-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(33,199,182,.42);}
.content-media{position:relative;aspect-ratio:16/10;overflow:hidden;}
.content-media img{width:100%;height:100%;object-fit:cover;}
.content-media .fallback{width:100%;height:100%;background:var(--grad);}
.lock-mask{
  position:absolute;inset:0;background:rgba(20,15,46,.62);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  display:flex;align-items:center;justify-content:center;
}
.lock-icon{
  width:46px;height:46px;border-radius:50%;border:1px solid rgba(255,255,255,.55);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;
  background:rgba(255,255,255,.12);
}
.content-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.level-badge{
  align-self:flex-start;font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px;
  background:rgba(242,180,65,.18);color:#7A4E00;border:1px solid rgba(242,180,65,.5);
}
.level-badge.is-free{background:rgba(33,199,182,.14);color:#0B6B60;border-color:rgba(33,199,182,.4);}
.level-badge.is-violet{background:rgba(91,63,209,.12);color:var(--brand-500);border-color:rgba(91,63,209,.35);}
.content-body h3{font-size:18px;}
.content-body p{font-size:14.5px;color:var(--text-weak);}
.content-foot{margin-top:auto;padding-top:6px;}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  border-radius:var(--radius-lg);overflow:hidden;background:#fff;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  display:flex;flex-direction:column;transition:all 200ms var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(33,199,182,.42);}
.news-media{aspect-ratio:16/10;overflow:hidden;background:var(--grad);}
.news-media img{width:100%;height:100%;object-fit:cover;}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-body h3{
  font-size:17px;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  font-size:14.5px;color:var(--text-weak);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--text-weak);
}
.empty-state{
  min-height:120px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  border:1px dashed var(--line);border-radius:var(--radius-lg);background:#fff;
  padding:36px 24px;text-align:center;grid-column:1 / -1;
}
.empty-state .dot-ico{
  width:44px;height:44px;border-radius:50%;background:rgba(91,63,209,.10);
  display:flex;align-items:center;justify-content:center;color:var(--brand-500);font-size:20px;
}
.empty-state p{color:var(--text-weak);font-size:15px;}

/* ---------- 证据 / 评价 ---------- */
.stat-row{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  padding:28px;border-radius:var(--radius-lg);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
}
.stat-item b{display:block;font-size:30px;font-variant-numeric:tabular-nums;color:#fff;}
.stat-item span{font-size:14px;color:rgba(255,255,255,.68);}
.quote-list{display:grid;grid-template-columns:1fr;gap:16px;margin-top:32px;}
.quote-item{
  display:flex;gap:16px;align-items:flex-start;padding:22px 24px;border-radius:var(--radius-md);
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
}
.quote-avatar{
  flex:0 0 auto;width:44px;height:44px;border-radius:50%;background:var(--grad);
  display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff;font-size:15px;
}
.quote-item p{font-size:15px;color:rgba(255,255,255,.86);}
.quote-item span{font-size:13px;color:rgba(255,255,255,.55);}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;margin:0 auto;}
.faq-item{
  border-radius:20px;background:#fff;border:1px solid var(--line);
  box-shadow:var(--shadow-card);overflow:hidden;position:relative;
  transition:all 200ms var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--aurora);
  transform:scaleY(0);transform-origin:top;transition:transform 220ms var(--ease);
}
.faq-item.is-open::before{transform:scaleY(1);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;
  padding:20px 24px;background:transparent;border:0;cursor:pointer;text-align:left;
}
.faq-badge{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  background:rgba(91,63,209,.10);color:var(--brand-500);
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;
}
.faq-title{flex:1;font-size:16.5px;font-weight:600;}
.faq-icon{flex:0 0 auto;width:18px;height:18px;position:relative;transition:transform 220ms var(--ease);}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand-500);border-radius:2px;transition:all 220ms var(--ease);
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-item.is-open .faq-icon::before,.faq-item.is-open .faq-icon::after{background:var(--aurora);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms var(--ease);}
.faq-a p{padding:0 24px 22px 66px;font-size:15px;color:var(--text-weak);}
.faq-hint{text-align:center;margin-top:20px;font-size:14px;color:var(--text-weak);}

/* ---------- CTA + 表单 ---------- */
.cta-card{
  border-radius:28px;padding:48px;
  background:linear-gradient(135deg,rgba(43,30,92,.92),rgba(20,15,46,.94));
  border:1px solid rgba(255,255,255,.14);
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start;
}
.cta-copy h2{color:#fff;margin-bottom:14px;}
.cta-copy p{color:rgba(255,255,255,.76);font-size:16px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:10px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;color:rgba(255,255,255,.82);font-size:15px;}
.cta-points li::before{content:"◆";color:var(--aurora);font-size:11px;line-height:1.9;}
.form-card{
  background:rgba(255,255,255,.96);border-radius:24px;padding:28px;
  box-shadow:0 16px 44px rgba(0,0,0,.28);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13.5px;font-weight:600;color:var(--text-weak);}
.field input,.field textarea{
  height:48px;padding:0 16px;border-radius:14px;border:1px solid var(--line);
  background:#fff;font-size:15px;transition:all 200ms var(--ease);
}
.field textarea{height:auto;padding:12px 16px;resize:vertical;min-height:96px;line-height:1.7;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--aurora);box-shadow:0 0 0 6px rgba(33,199,182,.16);
}
.chip-group{display:flex;flex-wrap:wrap;gap:10px;}
.chip-radio{
  padding:8px 16px;border-radius:999px;border:1px solid var(--line);background:#fff;
  font-size:14px;font-weight:600;color:var(--brand-700);cursor:pointer;transition:all 200ms var(--ease);
}
.chip-radio:hover{border-color:rgba(33,199,182,.5);background:rgba(33,199,182,.07);}
.chip-radio.is-checked{background:var(--grad);color:#fff;border-color:transparent;}
.form-foot{margin-top:18px;display:flex;flex-direction:column;gap:12px;}
.form-foot .btn{width:100%;}
.form-note{font-size:12.5px;color:var(--text-weak);line-height:1.7;}

/* ---------- CTA 条（窄版） ---------- */
.cta-bar{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:32px 36px;border-radius:24px;background:var(--grad);color:#fff;
  box-shadow:0 16px 44px rgba(91,63,209,.28);
}
.cta-bar h3{font-size:22px;margin-bottom:6px;}
.cta-bar p{font-size:15px;color:rgba(255,255,255,.88);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-900);color:rgba(255,255,255,.72);
  padding:72px 0 0;position:relative;overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.08) 1px,transparent 1px);
  background-size:28px 28px;opacity:.5;pointer-events:none;
}
.site-footer > *{position:relative;z-index:1;}
.footer-top{
  height:1px;width:100%;
  background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.28),rgba(255,255,255,0));
  margin-bottom:48px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand .brand-text b{color:#fff;}
.footer-brand .brand-text em{color:rgba(255,255,255,.55);}
.footer-brand p{margin-top:16px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.62);max-width:300px;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{
  width:38px;height:38px;border-radius:12px;border:1px solid rgba(255,255,255,.2);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;
  transition:all 200ms var(--ease);
}
.footer-social a:hover{border-color:var(--aurora);color:#fff;background:rgba(33,199,182,.14);}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.66);transition:color 200ms var(--ease);}
.footer-col a:hover{color:var(--aurora);}
.footer-col p{font-size:14.5px;color:rgba(255,255,255,.66);margin-bottom:10px;}
.footer-bottom{
  margin-top:56px;padding:24px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13.5px;color:rgba(255,255,255,.5);
}
.footer-bottom .tnum{color:rgba(255,255,255,.62);font-weight:600;}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .nav-chips{max-width:520px;}
  .hero-inner{gap:40px;}
}
@media (max-width:1024px){
  h1{font-size:32px;}
  h2{font-size:24px;}
  .section{padding:72px 0;}
  .nav-chips{display:none;}
  .hamburger{display:flex;}
  .hero-inner{grid-template-columns:1fr;min-height:auto;gap:36px;}
  .hero-sub{max-width:none;}
  .level-grid{grid-template-columns:1fr;}
  .content-grid,.news-grid{grid-template-columns:repeat(2,1fr);}
  .stat-row{grid-template-columns:repeat(2,1fr);}
  .cta-card{grid-template-columns:1fr;padding:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-bar{flex-direction:column;align-items:flex-start;}
}
@media (max-width:768px){
  body{font-size:16px;}
  h1{font-size:30px;}
  h2{font-size:22px;}
  .section{padding:56px 0;}
  .container{padding:0 18px;}
  .hero{padding:56px 0 88px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px;}
  .content-grid,.news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .form-grid{grid-template-columns:1fr;}
  .faq-a p{padding:0 20px 20px 20px;}
  .faq-q{padding:18px;}
}
@media (max-width:520px){
  h1{font-size:28px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-badges{left:14px;right:14px;bottom:14px;}
  .data-badge{padding:8px 12px;font-size:12px;}
  .stat-row{grid-template-columns:1fr;padding:22px;}
  .cta-bar{padding:26px 22px;}
  .cta-card{padding:26px 20px;}
  .form-card{padding:22px 18px;}
  .btn{width:100%;}
  .nav-actions .btn{width:auto;}
}

/* roulang page: article */
:root{
  --brand-900:#140F2E;
  --brand-700:#2B1E5C;
  --brand-500:#5B3FD1;
  --brand-400:#7C5CF0;
  --aurora:#21C7B6;
  --gold:#F2B441;
  --bg-1:#F7F5FF;
  --bg-2:#FBFAFF;
  --ink:#1F1B33;
  --ink-2:#5B5678;
  --line:#E6E1F5;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --sh-1:0 8px 30px rgba(36,26,74,.08);
  --sh-2:0 16px 44px rgba(36,26,74,.14);
  --sh-3:0 6px 24px rgba(20,15,46,.10);
  --ease:200ms cubic-bezier(.2,.8,.2,1);
  --grad:linear-gradient(135deg,#5B3FD1 0%,#21C7B6 100%);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.9;
  color:var(--ink);
  background:#fff;
  letter-spacing:.01em;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
.tnum{font-variant-numeric:tabular-nums;font-weight:700}
:focus-visible{outline:2px solid var(--aurora);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--soft{background:var(--bg-1)}
.section--plain{background:var(--bg-2)}
.section--night{background:var(--brand-900);position:relative;overflow:hidden}
.section--night::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.10) 1px,transparent 1px);
  background-size:26px 26px;
}
.section--night > .container{position:relative;z-index:1}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-3);
}
.header-inner{display:flex;align-items:center;gap:18px;height:76px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad);
  display:grid;place-items:center;box-shadow:0 6px 18px rgba(91,63,209,.28);
}
.brand-mark span{width:12px;height:12px;border-radius:50%;background:#fff;box-shadow:0 0 0 4px rgba(255,255,255,.22)}
.brand-text b{font-size:18px;font-weight:700;letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:12px;color:var(--ink-2);margin-left:2px}
.nav-chips{display:flex;align-items:center;gap:8px;margin:0 auto;overflow:visible}
.chip{
  display:inline-block;padding:8px 16px;border-radius:999px;font-size:14px;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  white-space:nowrap;transition:var(--ease);
}
.chip:hover{background:rgba(33,199,182,.08);border-color:rgba(33,199,182,.45);color:var(--brand-700)}
.chip.is-active{background:var(--grad);border-color:transparent;color:#fff;box-shadow:0 8px 20px rgba(91,63,209,.26)}
.header-cta{flex:none;display:flex;align-items:center;gap:10px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:var(--ease);
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 26px rgba(91,63,209,.28)}
.btn-primary:hover{filter:brightness(1.06);box-shadow:0 16px 34px rgba(91,63,209,.34)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--brand-700)}
.btn-ghost:hover{border-color:rgba(33,199,182,.55);box-shadow:0 10px 24px rgba(33,199,182,.16)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:12px}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;
}
.burger i{display:block;width:18px;height:2px;background:var(--brand-700);border-radius:2px;transition:var(--ease)}
.mobile-panel{display:none;border-top:1px solid var(--line);background:#fff;padding:16px 0 22px}
.mobile-panel.is-open{display:block}
.mobile-panel .chip{display:block;margin:0 0 10px}
.mobile-panel .btn{width:100%;margin-top:8px}

/* ============ article head ============ */
.article-hero{
  position:relative;
  background:
    radial-gradient(900px 380px at 12% -10%,rgba(124,92,240,.20),transparent 60%),
    radial-gradient(700px 320px at 88% 0%,rgba(33,199,182,.18),transparent 62%),
    var(--bg-1);
  border-bottom:1px solid var(--line);
  padding:36px 0 56px;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-2)}
.crumbs a{color:var(--ink-2);transition:var(--ease)}
.crumbs a:hover{color:var(--brand-500)}
.crumbs .sep{color:#B9B3D1}
.crumbs .now{color:var(--ink);font-weight:600}
.article-head{margin-top:26px;max-width:860px}
.head-chip{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  background:rgba(33,199,182,.12);border:1px solid rgba(33,199,182,.32);
  color:#12655E;font-size:13px;font-weight:600;
}
.article-head h1{
  margin-top:18px;
  font-size:40px;line-height:1.25;font-weight:700;letter-spacing:.01em;
}
.article-sub{margin-top:16px;font-size:17px;color:var(--ink-2);max-width:760px}
.meta-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.badge{
  display:inline-flex;align-items:center;gap:7px;height:32px;padding:0 14px;border-radius:999px;
  font-size:13px;background:#fff;border:1px solid var(--line);color:var(--ink-2);
}
.badge b{color:var(--ink)}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--aurora)}
.badge.gold{background:rgba(242,180,65,.16);border-color:rgba(242,180,65,.38);color:#7A5310}

/* ============ cover ============ */
.cover-wrap{
  margin-top:34px;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  border:1px solid var(--line);background:var(--grad);
}
.cover-wrap img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ============ article layout ============ */
.article-layout{
  display:grid;gap:48px;
  grid-template-columns:minmax(0,780px);
  justify-content:center;
}
.article-body{font-size:17px;line-height:1.9;color:var(--ink)}
.article-body > * + *{margin-top:1.25em}
.article-body p{margin:0}
.article-body h2{
  position:relative;margin-top:2em;padding-left:16px;
  font-size:28px;font-weight:600;line-height:1.4;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:1.1em;border-radius:4px;background:var(--grad);
}
.article-body h3{margin-top:1.7em;font-size:20px;font-weight:600}
.article-body a{color:var(--brand-500);border-bottom:1px solid rgba(91,63,209,.3)}
.article-body a:hover{border-bottom-color:var(--aurora);color:var(--brand-700)}
.article-body ul,.article-body ol{padding-left:1.5em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.5em 0}
.article-body ul li::marker{color:var(--aurora)}
.article-body ol li::marker{color:var(--aurora);font-weight:700}
.article-body blockquote{
  margin:1.6em 0;padding:20px 24px;background:var(--bg-1);
  border-left:3px solid var(--aurora);border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--brand-700);
}
.article-body blockquote p{margin:0}
.article-body img{border-radius:16px;margin:1.6em 0 .6em;box-shadow:var(--sh-1)}
.article-body figure{margin:1.6em 0}
.article-body figcaption,.article-body .caption{
  font-size:13px;color:var(--ink-2);text-align:center;line-height:1.7;
}
.article-body .table-scroll{
  overflow-x:auto;border-radius:var(--r-md);border:1px solid var(--line);
  box-shadow:var(--sh-1);margin:1.6em 0;background:#fff;
}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px}
.article-body th,.article-body td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line)}
.article-body thead th{background:var(--bg-1);font-weight:600;color:var(--brand-700)}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body code{background:var(--bg-1);border:1px solid var(--line);border-radius:6px;padding:2px 6px;font-size:14px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}

/* aside */
.article-aside{display:none}
.aside-card{
  border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;
  padding:24px;box-shadow:var(--sh-1);
}
.aside-card + .aside-card{margin-top:24px}
.aside-card h3{font-size:16px;font-weight:600}
.aside-list{margin-top:14px;display:grid;gap:12px}
.aside-list a{
  display:flex;justify-content:space-between;gap:10px;font-size:14px;color:var(--ink-2);
  padding-bottom:12px;border-bottom:1px dashed var(--line);transition:var(--ease);
}
.aside-list li:last-child a{border-bottom:0;padding-bottom:0}
.aside-list a:hover{color:var(--brand-500)}
.aside-tag{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.aside-tag a{
  font-size:13px;padding:6px 12px;border-radius:999px;border:1px solid var(--line);
  color:var(--ink-2);transition:var(--ease);
}
.aside-tag a:hover{border-color:rgba(33,199,182,.5);color:var(--brand-700);background:rgba(33,199,182,.07)}

/* empty */
.empty-state{
  min-height:220px;display:grid;place-content:center;justify-items:center;gap:14px;text-align:center;
  border:1px dashed var(--line);border-radius:var(--r-lg);background:var(--bg-2);padding:40px 24px;
}
.empty-state .icon{
  width:58px;height:58px;border-radius:20px;background:var(--grad);opacity:.9;
  display:grid;place-items:center;color:#fff;font-size:24px;font-weight:700;
}
.empty-state p{color:var(--ink-2);font-size:15px}

/* ============ related ============ */
.section-title{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.section-title .kicker{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand-500);
  background:rgba(91,63,209,.10);border-radius:999px;padding:5px 14px;
}
.section-title h2{margin-top:16px;font-size:28px;font-weight:600;line-height:1.35}
.section-title .more{font-size:14px;color:var(--brand-500);transition:var(--ease)}
.section-title .more:hover{color:var(--aurora)}
.rel-grid{display:grid;gap:24px;grid-template-columns:repeat(3,minmax(0,1fr));margin-top:36px}
.card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(33,199,182,.42)}
.card-media{position:relative;background:var(--grad)}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.card-media .tag{
  position:absolute;left:14px;top:14px;font-size:12px;padding:5px 12px;border-radius:999px;
  background:rgba(20,15,46,.62);color:#fff;backdrop-filter:blur(6px);
}
.card-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:18px;font-weight:600;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:14px;color:var(--ink-2);line-height:1.85;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-2);border-top:1px dashed var(--line);padding-top:14px;
}
.card-foot .go{color:var(--brand-500);font-weight:600}

/* ============ prev/next + back ============ */
.nav-pager{display:grid;gap:16px;grid-template-columns:repeat(2,minmax(0,1fr));margin-top:40px}
.pager-item{
  border:1px solid var(--line);border-radius:var(--r-md);padding:20px 22px;background:#fff;
  box-shadow:var(--sh-1);transition:var(--ease);
}
.pager-item:hover{border-color:rgba(33,199,182,.45);transform:translateY(-3px);box-shadow:var(--sh-2)}
.pager-item span{display:block;font-size:13px;color:var(--ink-2);margin-bottom:6px}
.pager-item b{font-size:16px;font-weight:600}
.back-row{margin-top:28px;display:flex;flex-wrap:wrap;gap:18px;align-items:center}
.back-link{font-size:15px;color:var(--brand-500);font-weight:600}
.back-link:hover{color:var(--aurora)}

/* ============ CTA ============ */
.cta-card{
  border-radius:28px;border:1px solid rgba(255,255,255,.14);
  background:linear-gradient(135deg,rgba(91,63,209,.55),rgba(33,199,182,.30));
  padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  color:#fff;backdrop-filter:blur(10px);
}
.cta-card h2{font-size:26px;font-weight:600;line-height:1.4}
.cta-card p{margin-top:14px;font-size:15px;color:rgba(255,255,255,.82);max-width:620px}
.cta-actions{display:flex;gap:14px;flex:none;flex-wrap:wrap}
.cta-card .btn-ghost{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.cta-card .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}

/* ============ footer ============ */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.76);position:relative;overflow:hidden}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.09) 1px,transparent 1px);
  background-size:26px 26px;
}
.site-footer .container{position:relative;z-index:1;padding-top:72px;padding-bottom:28px}
.footer-top{
  height:1px;width:100%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.22),transparent);
  margin-bottom:48px;
}
.footer-grid{display:grid;gap:40px;grid-template-columns:1.5fr 1fr 1fr 1fr}
.footer-brand .brand-text b{color:#fff}
.footer-brand .brand-text em{color:rgba(255,255,255,.6)}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.9;max-width:320px;color:rgba(255,255,255,.68)}
.footer-social{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap}
.footer-social a{
  font-size:13px;padding:6px 14px;border-radius:999px;border:1px solid rgba(255,255,255,.22);
  color:rgba(255,255,255,.82);transition:var(--ease);
}
.footer-social a:hover{border-color:var(--aurora);color:#fff;background:rgba(33,199,182,.16)}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px}
.footer-col ul{display:grid;gap:12px}
.footer-col li a,.footer-col p{font-size:14px;color:rgba(255,255,255,.68);transition:var(--ease)}
.footer-col li a:hover{color:var(--aurora)}
.footer-col p + p{margin-top:10px}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ responsive ============ */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,780px)}
}
@media (min-width:1280px){
  .article-layout{grid-template-columns:minmax(0,780px) 280px;align-items:start}
  .article-aside{display:block;position:sticky;top:104px}
}
@media (max-width:1024px){
  .nav-chips{display:none}
  .burger{display:flex}
  .header-cta .btn-primary{display:none}
  .header-inner{justify-content:space-between}
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .article-head h1{font-size:32px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:768px){
  body{font-size:16px}
  .article-hero{padding:26px 0 40px}
  .article-head h1{font-size:28px}
  .article-sub{font-size:16px}
  .cover-wrap{border-radius:20px}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:18px}
  .cta-card{flex-direction:column;align-items:flex-start;padding:32px 26px;border-radius:22px}
  .cta-card h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .section-title h2{font-size:22px}
  .nav-pager{grid-template-columns:1fr}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .section{padding:56px 0}
  .section--tight{padding:46px 0}
  .rel-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .article-head h1{font-size:26px}
  .badge{height:30px;font-size:12px;padding:0 12px}
}

/* roulang page: category1 */
:root{
  --brand-900:#140F2E;
  --brand-700:#2B1E5C;
  --brand-500:#5B3FD1;
  --brand-400:#7C5CF0;
  --aurora:#21C7B6;
  --gold:#F2B441;
  --bg-soft:#F7F5FF;
  --bg-softer:#FBFAFF;
  --text:#1F1B33;
  --text-muted:#5B5678;
  --border:#E6E1F5;
  --grad:linear-gradient(135deg,#5B3FD1 0%,#21C7B6 100%);
  --grad-soft:linear-gradient(135deg,rgba(91,63,209,.10) 0%,rgba(33,199,182,.12) 100%);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --sh-card:0 8px 30px rgba(36,26,74,.08);
  --sh-hover:0 16px 44px rgba(36,26,74,.14);
  --sh-nav:0 6px 24px rgba(20,15,46,.10);
  --t:200ms cubic-bezier(.2,.8,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg-softer);
  letter-spacing:.01em;
}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:.01em}
h1{font-size:40px;font-weight:700;line-height:1.25}
h2{font-size:28px;font-weight:600}
h3{font-size:20px;font-weight:600}
p{margin:0}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
ul{margin:0;padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--aurora);outline-offset:2px;border-radius:6px}
.tnum{font-variant-numeric:tabular-nums;font-weight:700}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  box-shadow:var(--sh-nav);
}
.nav-inner{display:flex;align-items:center;gap:20px;min-height:74px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;position:relative;
  box-shadow:0 6px 18px rgba(91,63,209,.28);
}
.brand-mark::before,.brand-mark::after{
  content:'';position:absolute;border-radius:50%;background:#fff;
}
.brand-mark::before{width:6px;height:6px;top:9px;left:10px;opacity:.92}
.brand-mark::after{width:4px;height:4px;bottom:9px;right:10px;opacity:.7}
.brand-mark span{
  width:12px;height:12px;border:2px solid rgba(255,255,255,.85);border-radius:50%;
}
.brand-text{display:inline-flex;align-items:baseline;gap:3px;font-size:19px;font-weight:700;color:var(--brand-700)}
.brand-text em{font-style:normal;font-size:12px;font-weight:500;color:var(--text-muted)}
.nav-chips{display:flex;align-items:center;gap:8px;margin:0 auto;flex-wrap:wrap}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 16px;border-radius:999px;font-size:14px;font-weight:500;
  border:1px solid var(--border);color:var(--text);background:#fff;
  transition:all var(--t);white-space:nowrap;
}
.chip:hover{background:rgba(33,199,182,.08);border-color:rgba(33,199,182,.45)}
.chip.is-active{
  background:var(--grad);border-color:transparent;color:#fff;font-weight:600;
  box-shadow:0 8px 20px rgba(91,63,209,.26);
}
.chip.is-active:hover{filter:brightness(1.05)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-sm);font-size:15px;font-weight:600;
  transition:all var(--t);border:1px solid transparent;white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(91,63,209,.28)}
.btn-primary:hover{filter:brightness(1.06);box-shadow:0 14px 32px rgba(91,63,209,.34);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{border-color:rgba(91,63,209,.35);color:var(--brand-700);background:#fff}
.btn-outline:hover{background:rgba(33,199,182,.08);border-color:rgba(33,199,182,.5)}
.btn-ghost-dark{border-color:rgba(255,255,255,.42);color:#fff;background:transparent}
.btn-ghost-dark:hover{background:rgba(255,255,255,.12)}
.btn-sm{padding:9px 16px;font-size:14px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--border);
  align-items:center;justify-content:center;background:#fff;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-700);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:'';position:absolute;left:0;width:18px;height:2px;background:var(--brand-700);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.drawer{
  position:fixed;inset:0;z-index:80;background:rgba(20,15,46,.55);
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);
}
.drawer.is-open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;inset:0 0 0 auto;width:min(88vw,380px);background:#fff;
  padding:24px;display:flex;flex-direction:column;gap:18px;overflow-y:auto;
  transform:translateX(100%);transition:transform var(--t);
}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--border);font-size:18px}
.drawer-links{display:flex;flex-direction:column;gap:10px}
.drawer-links .chip{justify-content:flex-start;width:100%;padding:13px 18px;font-size:15px}
.drawer-foot{margin-top:auto;display:grid;gap:10px}

/* ---------- 页头 ---------- */
.page-head{padding:56px 0 40px;background:var(--bg-soft)}
.breadcrumb{font-size:13px;color:var(--text-muted);display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.breadcrumb a:hover{color:var(--brand-500)}
.breadcrumb .sep{opacity:.55}
.breadcrumb .current{color:var(--text);font-weight:600}
.head-grid{display:grid;grid-template-columns:1fr;gap:20px;margin-top:18px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(33,199,182,.12);color:#12766C;font-size:13px;font-weight:600;width:fit-content;
}
.head-sub{margin-top:14px;font-size:17px;line-height:1.95;color:var(--text-muted);max-width:900px}
.head-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.meta-pill{
  display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:999px;
  border:1px solid var(--border);background:#fff;font-size:13px;color:var(--text-muted);
}
.meta-pill b{color:var(--text)}
.head-cover{
  margin-top:28px;border-radius:var(--r-lg);overflow:hidden;position:relative;
  aspect-ratio:21/9;background:var(--grad);box-shadow:var(--sh-card);
}
.head-cover img{width:100%;height:100%;object-fit:cover}
.head-cover::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(20,15,46,.55) 0%,rgba(20,15,46,.12) 60%);
}
.head-cover figcaption{
  position:absolute;left:24px;bottom:20px;z-index:2;color:#fff;font-size:14px;opacity:.92;
}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section.alt{background:var(--bg-soft)}
.section.plain{background:#fff}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head h2{margin-top:12px}
.section-sub{margin-top:10px;color:var(--text-muted);font-size:15px;max-width:720px}
.section-link{font-size:14px;font-weight:600;color:var(--brand-500);white-space:nowrap}
.section-link:hover{color:var(--aurora)}

/* ---------- 数据徽章条 ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.metric{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-card);transition:all var(--t);
}
.metric:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(33,199,182,.4)}
.metric .num{font-size:32px;font-weight:700;line-height:1.2;color:var(--brand-700);font-variant-numeric:tabular-nums}
.metric .label{margin-top:8px;font-size:14px;color:var(--text-muted)}
.metric .tag{
  display:inline-block;margin-top:16px;font-size:12px;font-weight:600;padding:5px 12px;border-radius:999px;
  background:rgba(33,199,182,.12);color:#12766C;
}
.metric.gold .num{color:#A8741A}
.metric.gold .tag{background:rgba(242,180,65,.16);color:#8A5C10}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;margin-top:8px}
.timeline::before{
  content:'';position:absolute;left:27px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,rgba(91,63,209,.36),rgba(33,199,182,.48),rgba(91,63,209,.12));
}
.tl-item{position:relative;padding-left:84px;margin-bottom:24px}
.tl-item:last-child{margin-bottom:0}
.tl-dot{
  position:absolute;left:0;top:16px;width:56px;height:56px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid rgba(242,180,65,.55);color:#8A5C10;
  font-size:18px;font-weight:700;font-variant-numeric:tabular-nums;
  box-shadow:0 6px 18px rgba(36,26,74,.08);
}
.tl-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-card);transition:all var(--t);
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(33,199,182,.4)}
.tl-top{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:12px}
.tl-step{font-size:13px;font-weight:600;color:#12766C;background:rgba(33,199,182,.12);padding:5px 12px;border-radius:999px}
.tl-card p{color:var(--text-muted);font-size:16px}
.tl-facts{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.fact{
  font-size:13px;padding:6px 13px;border-radius:999px;border:1px dashed var(--border);
  color:var(--text-muted);background:var(--bg-softer);
}
.fact b{color:var(--brand-700);font-variant-numeric:tabular-nums}

/* ---------- 权益清单 ---------- */
.benefit-wrap{display:grid;grid-template-columns:1fr 1.15fr;gap:40px;align-items:start}
.benefit-note{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-card);
}
.benefit-note h3{margin-bottom:12px}
.benefit-note p{color:var(--text-muted);font-size:15px}
.note-list{margin-top:20px;display:grid;gap:12px}
.note-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text)}
.note-list li::before{
  content:'';flex:0 0 auto;width:8px;height:8px;margin-top:10px;border-radius:50%;
  background:var(--aurora);
}
.benefit-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.benefit-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-md);
  padding:22px;transition:all var(--t);
}
.benefit-item:hover{transform:translateY(-3px);border-color:rgba(33,199,182,.45);box-shadow:var(--sh-card)}
.benefit-item h4{font-size:16px;font-weight:600;display:flex;align-items:center;gap:8px}
.check{
  width:20px;height:20px;border-radius:7px;background:rgba(33,199,182,.16);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.check svg{width:12px;height:12px;stroke:#12766C;stroke-width:2.6;fill:none}
.benefit-item p{margin-top:8px;font-size:14px;color:var(--text-muted);line-height:1.85}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:20px;overflow:hidden;
  transition:all var(--t);position:relative;
}
.faq-item::before{
  content:'';position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--aurora);
  transform:scaleY(0);transform-origin:top;transition:transform var(--t);
}
.faq-item.is-open{border-color:rgba(33,199,182,.45);box-shadow:var(--sh-card)}
.faq-item.is-open::before{transform:scaleY(1)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;padding:22px 24px;text-align:left;
  font-size:17px;font-weight:600;color:var(--text);
}
.q-mark{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--grad-soft);
  color:var(--brand-700);font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.faq-q .plus{
  margin-left:auto;flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform var(--t);
}
.faq-q .plus::before,.faq-q .plus::after{
  content:'';position:absolute;background:var(--brand-500);border-radius:2px;
}
.faq-q .plus::before{left:0;top:10px;width:22px;height:2px}
.faq-q .plus::after{top:0;left:10px;width:2px;height:22px}
.faq-item.is-open .plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height var(--t)}
.faq-a p{padding:0 24px 24px 64px;color:var(--text-muted);font-size:15px;line-height:1.9}

/* ---------- 相关分类 ---------- */
.related-chips{display:flex;flex-wrap:wrap;gap:12px}
.related-chips .chip{padding:11px 20px;font-size:15px;background:#fff}
.related-chips .chip:hover{transform:translateY(-2px)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;background:var(--brand-900);color:#fff;overflow:hidden;
}
.cta-band::before{
  content:'';position:absolute;inset:0;opacity:.5;
  background-image:radial-gradient(rgba(255,255,255,.10) 1px,transparent 1px);
  background-size:26px 26px;
}
.cta-band::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(91,63,209,.55),rgba(20,15,46,.2) 55%,rgba(33,199,182,.28));
}
.cta-card{
  position:relative;z-index:2;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);border-radius:28px;padding:44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.cta-card h2{color:#fff;font-size:28px}
.cta-card p{margin-top:12px;color:rgba(255,255,255,.78);font-size:16px;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto}

/* ---------- 表单 ---------- */
.form-shell{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  padding:36px;box-shadow:var(--sh-card);
}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:14px;font-weight:600;color:var(--text)}
.field input,.field textarea{
  height:48px;border-radius:var(--r-sm);border:1px solid var(--border);
  padding:0 16px;background:var(--bg-softer);transition:all var(--t);font-size:15px;
}
.field textarea{height:110px;padding:14px 16px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--aurora);background:#fff;
  box-shadow:0 0 0 6px rgba(33,199,182,.14);
}
.level-chips{display:flex;flex-wrap:wrap;gap:10px}
.level-chip{
  padding:10px 20px;border-radius:999px;border:1px solid var(--border);
  font-size:14px;font-weight:600;color:var(--text-muted);background:#fff;transition:all var(--t);
}
.level-chip:hover{border-color:rgba(33,199,182,.5);color:var(--text)}
.level-chip.is-active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 8px 20px rgba(91,63,209,.24)}
.form-foot{margin-top:24px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.form-tip{font-size:12px;color:var(--text-muted);line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);padding:72px 0 32px;position:relative}
.footer-top{
  height:1px;margin-bottom:48px;
  background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.28),rgba(255,255,255,0));
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-text em{color:rgba(255,255,255,.6)}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.9;max-width:320px}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  font-size:13px;padding:7px 14px;border-radius:999px;border:1px solid rgba(255,255,255,.24);
  transition:all var(--t);
}
.footer-social a:hover{background:rgba(33,199,182,.18);border-color:rgba(33,199,182,.55);color:#fff}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);transition:color var(--t)}
.footer-col a:hover{color:var(--aurora)}
.footer-col p{font-size:14px;margin-bottom:8px}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .metrics{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1024px){
  h1{font-size:32px}
  h2{font-size:24px}
  .section{padding:72px 0}
  .nav-toggle{display:inline-flex}
  .nav-chips{
    order:3;width:100%;margin:0 -24px;padding:10px 24px 14px;
    overflow-x:auto;flex-wrap:nowrap;scroll-snap-type:x mandatory;
    -ms-overflow-style:none;scrollbar-width:none;
  }
  .nav-chips::-webkit-scrollbar{display:none}
  .nav-chips .chip{scroll-snap-align:start}
  .nav-actions .btn-primary{display:none}
  .benefit-wrap{grid-template-columns:1fr;gap:24px}
  .cta-card{flex-direction:column;align-items:flex-start;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .page-head{padding:40px 0 32px}
  .metrics{grid-template-columns:1fr}
  .benefit-list{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .form-shell{padding:24px}
  .tl-item{padding-left:64px}
  .tl-dot{width:44px;height:44px;border-radius:13px;font-size:16px;top:14px}
  .timeline::before{left:21px}
  .faq-a p{padding:0 20px 22px 20px}
  .faq-q{padding:18px 20px;font-size:16px}
  .head-cover{aspect-ratio:16/9}
}
@media (max-width:520px){
  .container{padding:0 18px}
  h1{font-size:28px}
  h2{font-size:22px}
  .section{padding:40px 0}
  .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .brand-text{font-size:17px}
}

/* roulang page: category2 */
:root{
  --brand-900:#140F2E;
  --brand-700:#2B1E5C;
  --brand-500:#5B3FD1;
  --brand-400:#7C5CF0;
  --aurora:#21C7B6;
  --gold:#F2B441;
  --bg-1:#F7F5FF;
  --bg-2:#FBFAFF;
  --ink:#1F1B33;
  --muted:#5B5678;
  --line:#E6E1F5;
  --grad:linear-gradient(135deg,#5B3FD1 0%,#21C7B6 100%);
  --r-lg:24px;
  --r-md:18px;
  --r-btn:14px;
  --sh-1:0 8px 30px rgba(36,26,74,.08);
  --sh-2:0 16px 44px rgba(36,26,74,.14);
  --sh-nav:0 6px 24px rgba(20,15,46,.10);
  --t:200ms cubic-bezier(.2,.8,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",sans-serif;
  font-size:17px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg-2);
  letter-spacing:.01em;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.3;letter-spacing:.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.tnum{font-variant-numeric:tabular-nums;font-weight:700}
:focus-visible{outline:2px solid var(--aurora);outline-offset:2px;border-radius:8px}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(20,15,46,.88);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:var(--sh-nav);
}
.header-inner{
  display:flex;align-items:center;gap:20px;
  min-height:72px;padding:10px 0;
}
.brand{display:inline-flex;align-items:center;gap:10px}
.brand-mark{
  position:relative;width:36px;height:36px;border-radius:12px;
  background:var(--grad);flex:0 0 auto;
  box-shadow:0 6px 18px rgba(91,63,209,.4);
}
.brand-mark::before{
  content:"";position:absolute;left:50%;top:50%;width:12px;height:12px;
  transform:translate(-50%,-50%);
  background:
    radial-gradient(circle at 50% 0,rgba(255,255,255,.95) 0 1.6px,transparent 2px),
    radial-gradient(circle at 100% 50%,rgba(255,255,255,.8) 0 1.4px,transparent 1.8px),
    radial-gradient(circle at 50% 100%,rgba(255,255,255,.8) 0 1.4px,transparent 1.8px),
    radial-gradient(circle at 0 50%,rgba(255,255,255,.8) 0 1.4px,transparent 1.8px);
}
.brand-mark::after{
  content:"";position:absolute;left:50%;top:50%;width:5px;height:5px;border-radius:50%;
  transform:translate(-50%,-50%);background:#fff;opacity:.9;
}
.brand-text{display:flex;align-items:baseline;gap:4px;color:#fff;line-height:1}
.brand-text b{font-size:19px;font-weight:700;letter-spacing:.02em}
.brand-text em{font-style:normal;font-size:13px;color:rgba(255,255,255,.66)}

.nav-chips{
  display:flex;align-items:center;gap:8px;
  margin:0 auto;padding:0;overflow-x:auto;
  scrollbar-width:none;
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;white-space:nowrap;
  padding:8px 16px;border-radius:999px;
  font-size:14px;line-height:1.4;
  color:#EDE9FF;border:1px solid rgba(255,255,255,.22);
  background:transparent;
  transition:background var(--t),color var(--t),border-color var(--t),box-shadow var(--t);
}
.chip:hover{background:rgba(33,199,182,.14);border-color:rgba(33,199,182,.5);color:#fff}
.chip.is-active{
  background:var(--grad);border-color:transparent;color:#fff;font-weight:600;
  box-shadow:0 8px 20px rgba(91,63,209,.38);
}
.header-cta{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 20px;border-radius:var(--r-btn);
  font-size:14px;font-weight:600;color:#fff;
  background:var(--grad);
  box-shadow:0 10px 24px rgba(91,63,209,.35);
  transition:filter var(--t),box-shadow var(--t),transform var(--t);
}
.header-cta:hover{filter:brightness(1.06);box-shadow:0 14px 32px rgba(91,63,209,.45)}
.header-cta:active{transform:translateY(1px)}
.burger{
  display:none;margin-left:auto;
  width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.06);
  cursor:pointer;position:relative;
}
.burger span,.burger span::before,.burger span::after{
  position:absolute;left:50%;width:18px;height:2px;background:#fff;border-radius:2px;
  transform:translateX(-50%);transition:transform var(--t),opacity var(--t);
}
.burger span{top:50%;margin-top:-1px}
.burger span::before{content:"";top:-6px;left:0;transform:none}
.burger span::after{content:"";top:6px;left:0;transform:none}
.burger.is-open span{background:transparent}
.burger.is-open span::before{transform:rotate(45deg);top:0;background:#fff}
.burger.is-open span::after{transform:rotate(-45deg);top:0;background:#fff}

.drawer{
  position:fixed;inset:72px 0 0;z-index:55;
  background:rgba(20,15,46,.97);
  backdrop-filter:blur(12px);
  padding:24px;
  display:none;flex-direction:column;gap:10px;
}
.drawer.is-open{display:flex}
.drawer .chip{justify-content:flex-start;padding:14px 18px;font-size:16px;border-radius:16px}
.drawer-cta{
  margin-top:auto;display:flex;align-items:center;justify-content:center;
  padding:16px;border-radius:16px;font-weight:600;color:#fff;background:var(--grad);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:filter var(--t),box-shadow var(--t),background var(--t),border-color var(--t),transform var(--t);
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 28px rgba(91,63,209,.32)}
.btn-primary:hover{filter:brightness(1.06);box-shadow:0 16px 38px rgba(91,63,209,.42)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--brand-500);border-color:rgba(91,63,209,.35)}
.btn-ghost:hover{background:rgba(33,199,182,.1);border-color:var(--aurora);color:#1D8F84}
.btn-light{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.4)}
.btn-light:hover{background:rgba(33,199,182,.18);border-color:var(--aurora)}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-500);
  transition:color var(--t);
}
.link-more:hover{color:#1D8F84}

/* ---------- page head ---------- */
.page-head{padding:48px 0 0;background:linear-gradient(180deg,#F1EDFF 0%,var(--bg-2) 68%)}
.breadcrumb{font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.breadcrumb a:hover{color:var(--brand-500)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .now{color:var(--ink);font-weight:600}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:22px;padding:7px 16px;border-radius:999px;
  font-size:13px;font-weight:600;color:#1D8F84;
  background:rgba(33,199,182,.12);border:1px solid rgba(33,199,182,.3);
}
.page-head h1{
  margin-top:18px;font-size:40px;font-weight:700;line-height:1.25;max-width:900px;
}
.lead{
  margin-top:18px;max-width:820px;font-size:17px;line-height:1.9;color:var(--muted);
}
.head-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.head-cover{
  margin-top:36px;border-radius:var(--r-lg);overflow:hidden;
  aspect-ratio:21/9;background:var(--grad);position:relative;
  box-shadow:var(--sh-1);
}
.head-cover img{width:100%;height:100%;object-fit:cover}
.head-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(20,15,46,.55) 0%,rgba(20,15,46,.12) 55%,rgba(33,199,182,.22) 100%);
}
.head-cover figcaption{
  position:absolute;left:24px;bottom:20px;z-index:2;
  font-size:13px;color:rgba(255,255,255,.92);
}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section.tight{padding:72px 0}
.section.alt{background:var(--bg-1)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-500);
}
.section-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--aurora)}
.section-head h2{margin-top:10px;font-size:28px}
.section-head p{margin-top:10px;color:var(--muted);font-size:15px;max-width:640px}

/* ---------- metric cards ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.metric{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 24px;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.metric:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(33,199,182,.4)}
.metric .k{font-size:13px;color:var(--muted);letter-spacing:.02em}
.metric .v{margin-top:10px;font-size:34px;line-height:1.1;font-variant-numeric:tabular-nums;font-weight:700;color:var(--brand-500)}
.metric .v small{font-size:15px;font-weight:600;margin-left:4px;color:var(--muted)}
.metric .d{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.7}
.metric.gold .v{color:#B8801A}
.metric.gold{border-color:rgba(242,180,65,.4)}

/* ---------- tier strip ---------- */
.tiers{display:grid;gap:24px}
.tier{
  display:grid;grid-template-columns:120px 1fr 220px;gap:24px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 28px;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.tier:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(33,199,182,.4)}
.tier-seal{
  width:72px;height:72px;border-radius:16px;
  border:1.5px solid rgba(242,180,65,.75);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  background:rgba(242,180,65,.08);
}
.tier-seal b{font-size:22px;font-variant-numeric:tabular-nums;color:#B8801A;line-height:1}
.tier-seal span{font-size:12px;color:#B8801A;margin-top:4px}
.tier-body h3{font-size:20px}
.tier-body p{margin-top:8px;font-size:15px;color:var(--muted)}
.bar{margin-top:14px;height:8px;border-radius:999px;background:#EFEDFB;overflow:hidden}
.bar i{display:block;height:100%;border-radius:999px;background:var(--grad)}
.tier-side{text-align:right}
.tier-side .num{font-size:26px;font-variant-numeric:tabular-nums;font-weight:700;color:var(--ink)}
.tier-side .lbl{font-size:13px;color:var(--muted);margin-top:4px}

/* ---------- compare table ---------- */
.table-shell{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  background:#fff;box-shadow:var(--sh-1);
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;position:relative}
table.compare{width:100%;min-width:760px;border-collapse:collapse}
table.compare th,table.compare td{
  padding:0 24px;height:56px;text-align:left;font-size:15px;vertical-align:middle;
}
table.compare thead th{
  height:auto;padding-top:24px;padding-bottom:20px;
  font-size:16px;font-weight:600;color:var(--ink);
  background:#FBFaff;position:relative;
}
table.compare thead th .col-note{display:block;font-size:13px;font-weight:400;color:var(--muted);margin-top:6px}
table.compare thead th.reco{background:rgba(91,63,209,.05);font-size:16.6px}
table.compare thead th.reco::before{
  content:"";position:absolute;left:0;right:0;top:0;height:6px;background:var(--grad);
}
table.compare thead th .badge-reco{
  position:absolute;right:16px;top:14px;
  padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;
  color:#8A5D00;background:rgba(242,180,65,.18);border:1px solid rgba(242,180,65,.6);
}
table.compare tbody tr:nth-child(even) td{background:rgba(91,63,209,.02)}
table.compare tbody tr:hover td{background:rgba(33,199,182,.07)}
table.compare tbody th{
  font-weight:600;color:var(--ink);font-size:15px;
}
table.compare td.reco{background:rgba(91,63,209,.05)}
table.compare tbody tr:nth-child(even) td.reco{background:rgba(91,63,209,.07)}
table.compare .yes,.table.compare .no{display:inline-flex;align-items:center;gap:8px;font-size:14px}
table.compare .yes{color:#1D8F84;font-weight:600}
table.compare .yes::before{content:"";width:16px;height:16px;border-radius:50%;background:rgba(33,199,182,.16);border:1.5px solid var(--aurora);position:relative}
table.compare .no{color:#9C97B5}
table.compare .no::before{content:"";width:14px;height:2px;background:#C9C4DC;border-radius:2px}
.tag-num{
  display:inline-flex;align-items:center;padding:3px 12px;border-radius:999px;
  font-size:13px;font-variant-numeric:tabular-nums;font-weight:700;
  color:#8A5D00;background:rgba(242,180,65,.16);
}
.table-hint{font-size:13px;color:var(--muted);margin-top:14px}

/* ---------- steps ---------- */
.steps{display:grid;gap:18px;counter-reset:step}
.step{
  display:grid;grid-template-columns:64px 1fr;gap:20px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px 26px;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(33,199,182,.4)}
.step .idx{
  width:48px;height:48px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-variant-numeric:tabular-nums;font-weight:700;color:#fff;
  background:var(--grad);box-shadow:0 10px 22px rgba(91,63,209,.28);
}
.step h3{font-size:18px}
.step p{margin-top:8px;font-size:15px;color:var(--muted)}
.step .meta{
  display:inline-flex;align-items:center;gap:8px;margin-top:12px;
  font-size:13px;color:var(--brand-500);font-weight:600;
}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;
  position:relative;transition:border-color var(--t),box-shadow var(--t);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--grad);
  opacity:0;transition:opacity var(--t);
}
.faq-item.is-open{border-color:rgba(33,199,182,.45);box-shadow:var(--sh-1)}
.faq-item.is-open::before{opacity:1}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;
  padding:20px 24px;background:transparent;border:0;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);
}
.faq-q .qmark{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;color:#1D8F84;
  background:rgba(33,199,182,.14);border:1px solid rgba(33,199,182,.35);
}
.faq-q .plus{
  margin-left:auto;flex:0 0 auto;position:relative;width:18px;height:18px;
  transition:transform var(--t);
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand-500);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-q .plus::before{width:14px;height:2px}
.faq-q .plus::after{width:2px;height:14px}
.faq-item.is-open .plus{transform:rotate(45deg)}
.faq-a{
  display:none;padding:0 24px 22px 64px;font-size:15px;color:var(--muted);line-height:1.85;
}
.faq-item.is-open .faq-a{display:block}

/* ---------- related chips ---------- */
.related{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
.related a{
  display:inline-flex;align-items:center;padding:10px 18px;border-radius:999px;
  font-size:14px;font-weight:600;color:var(--brand-500);
  background:#fff;border:1px solid var(--line);
  transition:background var(--t),border-color var(--t),color var(--t),transform var(--t);
}
.related a:hover{background:rgba(33,199,182,.1);border-color:var(--aurora);color:#1D8F84;transform:translateY(-2px)}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--brand-900);
  padding:72px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:
    radial-gradient(rgba(255,255,255,.10) 1px,transparent 1.4px),
    radial-gradient(rgba(33,199,182,.10) 1px,transparent 1.4px);
  background-size:64px 64px,96px 96px;
  background-position:0 0,32px 32px;
}
.cta-card{
  position:relative;z-index:2;
  background:linear-gradient(135deg,rgba(91,63,209,.35),rgba(43,30,92,.9));
  border:1px solid rgba(255,255,255,.14);
  border-radius:28px;padding:44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-card h2{color:#fff;font-size:28px}
.cta-card p{margin-top:12px;color:rgba(255,255,255,.78);font-size:15px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.7);padding:64px 0 28px;position:relative}
.footer-top{
  height:1px;width:100%;margin-bottom:48px;
  background:linear-gradient(90deg,transparent,rgba(33,199,182,.5),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:320px}
.footer-social{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap}
.footer-social a{
  padding:8px 16px;border-radius:999px;font-size:13px;
  border:1px solid rgba(255,255,255,.2);color:rgba(255,255,255,.82);
  transition:background var(--t),border-color var(--t),color var(--t);
}
.footer-social a:hover{background:rgba(33,199,182,.16);border-color:var(--aurora);color:#fff}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px}
.footer-col ul{display:grid;gap:12px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);transition:color var(--t)}
.footer-col a:hover{color:var(--aurora)}
.footer-col p{font-size:14px;color:rgba(255,255,255,.66);margin-bottom:10px}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}
.site-footer .brand-text b{font-size:18px}
.site-footer .brand-text em{color:rgba(255,255,255,.55)}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .section{padding:72px 0}
}
@media (max-width:1024px){
  .nav-chips{display:none}
  .header-cta{display:none}
  .burger{display:block}
  .page-head h1{font-size:32px}
  .section{padding:56px 0}
  .section-head h2{font-size:24px}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .tier{grid-template-columns:96px 1fr;gap:20px;padding:22px}
  .tier-side{grid-column:1 / -1;text-align:left}
  .cta-card{flex-direction:column;align-items:flex-start;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  body{font-size:16px}
  .page-head{padding-top:32px}
  .page-head h1{font-size:28px}
  .head-cover{aspect-ratio:16/10}
  .section{padding:44px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
  .metrics{grid-template-columns:1fr;gap:16px}
  .tier{grid-template-columns:1fr;gap:16px}
  .tier-seal{width:60px;height:60px}
  .step{grid-template-columns:1fr}
  .faq-q{padding:18px;font-size:15px}
  .faq-a{padding:0 18px 20px 58px}
  .cta-card{padding:26px;border-radius:22px}
  .cta-card h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .page-head h1{font-size:26px}
  .metric .v{font-size:28px}
  .head-actions .btn{width:100%}
}

/* roulang page: category3 */
:root{
  --brand-900:#140F2E;
  --brand-700:#2B1E5C;
  --brand-500:#5B3FD1;
  --brand-400:#7C5CF0;
  --aurora:#21C7B6;
  --gold:#F2B441;
  --bg-1:#F7F5FF;
  --bg-2:#FBFAFF;
  --ink:#1F1B33;
  --ink-2:#5B5678;
  --border:#E6E1F5;
  --radius-lg:24px;
  --radius-md:18px;
  --shadow-1:0 8px 30px rgba(36,26,74,.08);
  --shadow-2:0 16px 44px rgba(36,26,74,.14);
  --shadow-nav:0 6px 24px rgba(20,15,46,.10);
  --grad:linear-gradient(135deg,#5B3FD1 0%,#21C7B6 100%);
  --ease:cubic-bezier(.2,.8,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:17px;line-height:1.9;color:var(--ink);background:var(--bg-2);
  letter-spacing:.01em;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:.01em}
h1{font-size:40px;font-weight:700;line-height:1.25}
h2{font-size:28px;font-weight:600}
h3{font-size:20px;font-weight:600}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--aurora);outline-offset:2px;border-radius:6px}
.tnum{font-variant-numeric:tabular-nums;font-weight:700}

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

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.84);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  box-shadow:var(--shadow-nav);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:13px;background:var(--grad);
  display:grid;place-items:center;box-shadow:0 8px 20px rgba(91,63,209,.28);
}
.brand-mark span{width:10px;height:10px;border-radius:50%;background:#fff;box-shadow:0 0 0 4px rgba(255,255,255,.28)}
.brand-text b{font-size:18px;font-weight:700;color:var(--ink)}
.brand-text em{font-size:12px;font-style:normal;color:var(--ink-2);margin-left:2px}
.nav-desktop{display:flex;gap:8px;flex:1;justify-content:center;align-items:center}
.nav-chips{display:flex;gap:8px;align-items:center}
.chip{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--ink);background:#fff;
  border:1px solid var(--border);white-space:nowrap;
  transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.chip:hover{background:rgba(33,199,182,.08);border-color:rgba(33,199,182,.42)}
.chip.is-active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 10px 24px rgba(91,63,209,.26)}
.chip.is-active:hover{color:#fff}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:13px;border:1px solid var(--border);
  background:#fff;cursor:pointer;position:relative;
}
.nav-toggle span{position:absolute;left:12px;right:12px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle span:nth-child(1){top:15px}
.nav-toggle span:nth-child(2){top:20px}
.nav-toggle span:nth-child(3){top:25px}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
.nav-scroll{display:none}
.mobile-drawer{display:none;background:#fff;border-top:1px solid var(--border);padding:16px 0 24px}
.mobile-drawer.is-open{display:block}
.mobile-drawer .nav-chips{flex-direction:column;align-items:stretch;padding:0 24px}
.mobile-drawer .chip{height:46px;justify-content:flex-start;border-radius:14px}
.drawer-cta{padding:16px 24px 0}
.drawer-cta .btn{width:100%}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:14px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),filter .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 26px rgba(91,63,209,.28)}
.btn-primary:hover{filter:brightness(1.06);box-shadow:0 16px 36px rgba(91,63,209,.36);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 16px rgba(91,63,209,.28)}
.btn-outline{background:#fff;border-color:var(--border);color:var(--ink)}
.btn-outline:hover{border-color:rgba(33,199,182,.5);background:rgba(33,199,182,.08);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(1px)}
.btn-light{background:#fff;color:var(--brand-700)}
.btn-light:hover{background:#fff;box-shadow:0 14px 32px rgba(255,255,255,.22);transform:translateY(-1px)}
.btn-light-outline{background:transparent;border-color:rgba(255,255,255,.42);color:#fff}
.btn-light-outline:hover{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.7)}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-500);
  transition:color .2s var(--ease),gap .2s var(--ease);
}
.link-more::after{content:"→";transition:transform .2s var(--ease)}
.link-more:hover{color:var(--aurora);gap:10px}

/* ---------- 区块 ---------- */
.section{padding:96px 0;position:relative}
.section-soft{background:var(--bg-1)}
.section-plain{background:#fff}
.section-dark{background:var(--brand-900);color:#fff;overflow:hidden}
.section-dark::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.10) 1px,transparent 1px);
  background-size:22px 22px;opacity:.75;
}
.section-dark > *{position:relative;z-index:1}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.section-head p{margin-top:10px;color:var(--ink-2);font-size:15px;max-width:640px}
.eyebrow{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;
  background:rgba(91,63,209,.09);color:var(--brand-500);font-size:12px;font-weight:600;letter-spacing:.04em;
}
.eyebrow-gold{background:rgba(242,180,65,.18);color:#9A6A0B}

/* ---------- 页头 ---------- */
.page-head{
  padding:40px 0 72px;
  background:linear-gradient(180deg,var(--bg-1) 0%,#fff 78%);
  border-bottom:1px solid var(--border);
}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-2);margin-bottom:26px}
.breadcrumb a{transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--aurora)}
.breadcrumb .sep{color:#B9B3D2}
.breadcrumb .current{color:var(--ink);font-weight:600}
.page-head-main{max-width:820px}
.page-head h1{margin:16px 0 18px}
.page-head .lead{font-size:17px;color:var(--ink-2);line-height:1.9}
.meta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.page-head-media{
  margin-top:44px;border-radius:var(--radius-lg);overflow:hidden;
  aspect-ratio:21/9;background:var(--grad);box-shadow:var(--shadow-1);
}
.page-head-media img{width:100%;height:100%;object-fit:cover}

/* ---------- 速览 ---------- */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);
  padding:24px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.stat:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(33,199,182,.42)}
.stat b{display:block;font-size:30px;font-weight:700;color:var(--brand-500);font-variant-numeric:tabular-nums;line-height:1.2}
.stat span{display:block;margin-top:8px;font-size:14px;color:var(--ink-2)}

/* ---------- 图文交替 ---------- */
.zig-row{display:grid;grid-template-columns:1fr;gap:36px;align-items:center}
.zig-row + .zig-row{margin-top:72px}
.zig-media{border-radius:var(--radius-lg);overflow:hidden;aspect-ratio:16/10;background:var(--grad);box-shadow:var(--shadow-1);position:relative}
.zig-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.zig-media:hover img{transform:scale(1.04)}
.zig-body h3{font-size:24px;margin-bottom:14px}
.zig-body p{color:var(--ink-2);font-size:16px}
.zig-list{margin-top:20px;display:grid;gap:12px}
.zig-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--ink)}
.zig-list li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-top:11px;border-radius:50%;
  background:var(--aurora);box-shadow:0 0 0 4px rgba(33,199,182,.16);
}
.zig-note{
  margin-top:22px;padding:16px 20px;border-left:3px solid var(--aurora);
  background:rgba(91,63,209,.05);border-radius:0 14px 14px 0;font-size:14px;color:var(--ink-2);
}

/* ---------- 目录网格 ---------- */
.index-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.index-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:28px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;gap:14px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.index-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(33,199,182,.42)}
.index-card h3{font-size:18px}
.index-card p{font-size:14px;color:var(--ink-2);flex:1}
.index-card .card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:4px}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;
}
.badge-free{background:rgba(91,63,209,.09);color:var(--brand-500)}
.badge-std{background:rgba(33,199,182,.14);color:#12857A}
.badge-gold{background:rgba(242,180,65,.20);color:#9A6A0B}

/* ---------- 节奏与方式 ---------- */
.split{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:start}
.step-list{display:grid;gap:18px}
.step{
  display:flex;gap:18px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);
  padding:22px 24px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(33,199,182,.42)}
.step-num{
  flex:0 0 auto;width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  border:1px solid rgba(242,180,65,.7);color:#9A6A0B;font-weight:700;font-size:15px;
  font-variant-numeric:tabular-nums;background:rgba(242,180,65,.10);
}
.step h3{font-size:17px;margin-bottom:6px}
.step p{font-size:14px;color:var(--ink-2)}
.side-card{
  background:var(--brand-900);color:#fff;border-radius:var(--radius-lg);padding:32px;position:relative;overflow:hidden;
  box-shadow:var(--shadow-2);
}
.side-card::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.12) 1px,transparent 1px);
  background-size:20px 20px;opacity:.7;pointer-events:none;
}
.side-card > *{position:relative;z-index:1}
.side-card h3{font-size:20px;margin-bottom:14px}
.side-card p{font-size:15px;color:rgba(255,255,255,.78)}
.side-list{margin-top:22px;display:grid;gap:14px}
.side-list li{display:flex;justify-content:space-between;gap:16px;font-size:14px;color:rgba(255,255,255,.86);padding-bottom:14px;border-bottom:1px solid rgba(255,255,255,.12)}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list b{color:#fff;font-variant-numeric:tabular-nums}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:20px;position:relative;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item + .faq-item{margin-top:16px}
.faq-item.is-open{border-color:rgba(33,199,182,.46);box-shadow:var(--shadow-1)}
.faq-item.is-open::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;
  background:var(--aurora);border-radius:0 3px 3px 0;
}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;padding:20px 24px;
  background:none;border:0;text-align:left;font-size:17px;font-weight:600;color:var(--ink);cursor:pointer;
}
.faq-mark{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
  background:rgba(91,63,209,.10);color:var(--brand-500);font-size:13px;font-weight:700;
}
.faq-plus{margin-left:auto;flex:0 0 auto;width:16px;height:16px;position:relative;transition:transform .2s var(--ease)}
.faq-plus::before,.faq-plus::after{content:"";position:absolute;background:var(--ink-2);border-radius:2px}
.faq-plus::before{left:0;right:0;top:7px;height:2px}
.faq-plus::after{top:0;bottom:0;left:7px;width:2px}
.faq-item.is-open .faq-plus{transform:rotate(45deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .25s var(--ease)}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a > div{overflow:hidden}
.faq-a p{padding:0 24px 22px 64px;font-size:15px;color:var(--ink-2);line-height:1.9;margin:0}

/* ---------- 相关分类 ---------- */
.related-chips{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- CTA ---------- */
.cta-card{
  background:linear-gradient(135deg,rgba(255,255,255,.10),rgba(255,255,255,.03));
  border:1px solid rgba(255,255,255,.16);border-radius:28px;padding:44px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.cta-card h2{color:#fff;font-size:28px}
.cta-card p{margin-top:12px;color:rgba(255,255,255,.78);font-size:16px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.76);position:relative;overflow:hidden;padding:64px 0 28px}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.09) 1px,transparent 1px);
  background-size:24px 24px;opacity:.7;
}
.site-footer > .container{position:relative;z-index:1}
.footer-top{height:1px;background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.26),rgba(255,255,255,0));margin-bottom:48px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand .brand-text b{color:#fff}
.footer-brand .brand-text em{color:rgba(255,255,255,.6)}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.9;max-width:320px}
.footer-social{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap}
.footer-social a{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  border:1px solid rgba(255,255,255,.24);font-size:13px;color:rgba(255,255,255,.86);
  transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.footer-social a:hover{background:rgba(33,199,182,.16);border-color:rgba(33,199,182,.6);color:#fff}
.footer-col h4{font-size:15px;color:#fff;font-weight:600;margin-bottom:18px}
.footer-col ul{display:grid;gap:12px}
.footer-col li a{font-size:14px;color:rgba(255,255,255,.76);transition:color .2s var(--ease)}
.footer-col li a:hover{color:var(--aurora)}
.footer-col p{font-size:14px;margin-bottom:10px}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
}
@media (max-width:1024px){
  h1{font-size:32px}
  h2{font-size:24px}
  .section{padding:72px 0}
  .nav-desktop{display:none}
  .nav-toggle{display:block}
  .nav-scroll{
    display:block;border-top:1px solid var(--border);background:rgba(255,255,255,.92);
    overflow-x:auto;scrollbar-width:none;padding:10px 0;
    mask-image:linear-gradient(90deg,transparent 0,#000 16px,#000 calc(100% - 16px),transparent 100%);
    -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 16px,#000 calc(100% - 16px),transparent 100%);
  }
  .nav-scroll::-webkit-scrollbar{display:none}
  .nav-scroll .nav-chips{padding:0 24px;scroll-snap-type:x mandatory;width:max-content}
  .nav-scroll .chip{scroll-snap-align:start}
  .stat-row{grid-template-columns:repeat(2,1fr)}
  .index-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr}
  .cta-card{flex-direction:column;align-items:flex-start;padding:36px}
  .cta-actions{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr}
  .page-head{padding:28px 0 56px}
}
@media (min-width:901px){
  .zig-row{grid-template-columns:7fr 5fr;gap:48px}
  .zig-row.is-flip{grid-template-columns:5fr 7fr}
  .zig-row.is-flip .zig-media{order:-1}
}
@media (max-width:768px){
  h1{font-size:30px}
  h2{font-size:22px}
  h3{font-size:19px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px}
  .page-head-media{aspect-ratio:16/10}
  .index-grid{grid-template-columns:1fr}
  .faq-a p{padding-left:24px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  h1{font-size:28px}
  .section{padding:40px 0}
  .stat-row{grid-template-columns:1fr}
  .cta-card{padding:28px;border-radius:24px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .header-inner{min-height:64px;gap:12px}
  .brand-text b{font-size:16px}
  .header-actions .btn-sm{padding:0 14px;font-size:13px}
}

/* roulang page: category4 */
:root{
  --brand-900:#140F2E;--brand-700:#2B1E5C;--brand-500:#5B3FD1;--brand-400:#7C5CF0;
  --aurora:#21C7B6;--gold:#F2B441;
  --bg-soft:#F7F5FF;--bg-soft2:#FBFAFF;
  --text:#1F1B33;--muted:#5B5678;--line:#E6E1F5;
  --r-lg:24px;--r-md:18px;--r-sm:14px;
  --sh-1:0 8px 30px rgba(36,26,74,.08);
  --sh-2:0 16px 44px rgba(36,26,74,.14);
  --sh-nav:0 6px 24px rgba(20,15,46,.10);
  --ease:cubic-bezier(.2,.8,.2,1);
  --grad:linear-gradient(135deg,#5B3FD1,#21C7B6);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;font-size:17px;line-height:1.9;color:var(--text);background:#fff;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.3;letter-spacing:.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--aurora);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.tnum{font-variant-numeric:tabular-nums;font-weight:700}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:80;background:rgba(251,250,255,.88);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(230,225,245,.9);box-shadow:var(--sh-nav)}
.header-inner{display:flex;align-items:center;gap:20px;height:76px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:34px;height:34px;border-radius:11px;background:var(--grad);display:inline-flex;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(91,63,209,.28)}
.brand-mark span{width:12px;height:12px;border-radius:4px;background:#fff;transform:rotate(45deg);opacity:.95}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:17px;font-weight:700}
.brand-text em{font-style:normal;font-size:11px;color:var(--muted)}
.nav-chips{display:flex;align-items:center;gap:8px;flex:1 1 auto;justify-content:center;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;scroll-snap-type:x mandatory;padding:6px 2px}
.nav-chips::-webkit-scrollbar{display:none}
.chip{display:inline-flex;align-items:center;white-space:nowrap;padding:8px 16px;border-radius:999px;border:1px solid var(--line);background:#fff;color:#2b2450;font-size:14px;transition:background 200ms var(--ease),border-color 200ms var(--ease),color 200ms var(--ease),box-shadow 200ms var(--ease);scroll-snap-align:start}
.chip:hover{background:rgba(33,199,182,.08);border-color:rgba(33,199,182,.45)}
.chip.is-active{background:var(--grad);border-color:transparent;color:#fff;box-shadow:0 8px 20px rgba(91,63,209,.28)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:14px;padding:11px 20px;font-size:15px;font-weight:600;transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),background 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease);white-space:nowrap}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 26px rgba(91,63,209,.26)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 34px rgba(91,63,209,.34)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border:1px solid var(--line);background:#fff;color:#2b2450}
.btn-ghost:hover{border-color:rgba(33,199,182,.5);background:rgba(33,199,182,.07)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.nav-toggle i{display:block;width:18px;height:2px;border-radius:2px;background:#2b2450}
.drawer{position:fixed;inset:76px 0 0 0;background:rgba(251,250,255,.98);backdrop-filter:blur(12px);padding:24px;transform:translateY(-12px);opacity:0;pointer-events:none;transition:opacity 200ms var(--ease),transform 200ms var(--ease);z-index:70;overflow-y:auto}
.drawer.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
.drawer-list{display:flex;flex-direction:column;gap:10px;margin-bottom:24px}
.drawer-list .chip{justify-content:flex-start;padding:14px 18px;border-radius:14px;font-size:15px}
.drawer-cta{display:block;text-align:center;width:100%}

/* 页头 */
.page-head{padding:36px 0 0}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:18px}
.crumb a:hover{color:var(--brand-500)}
.crumb .sep{opacity:.55}
.crumb .now{color:var(--text);font-weight:600}
.head-tag{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(91,63,209,.09);color:var(--brand-500);font-size:13px;font-weight:600;margin-bottom:16px}
.page-title{font-size:clamp(28px,4vw,40px);font-weight:700;line-height:1.25;max-width:900px}
.page-title .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.head-sub{margin-top:16px;max-width:860px;color:var(--muted);font-size:17px}
.head-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.meta-chip{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;background:var(--bg-soft);border:1px solid var(--line);font-size:13px;color:#3a3460}
.banner{margin-top:28px;border-radius:var(--r-lg);overflow:hidden;aspect-ratio:21/9;background:linear-gradient(135deg,#5B3FD1,#21C7B6);position:relative}
.banner img{width:100%;height:100%;object-fit:cover}
.banner::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(20,15,46,.55),rgba(20,15,46,.12) 60%,rgba(33,199,182,.24))}
.banner-cap{position:absolute;left:28px;bottom:24px;right:28px;color:#fff;z-index:2;font-size:15px;font-weight:600;letter-spacing:.01em}

/* 通用板块 */
.section{padding:88px 0}
.section.soft{background:var(--bg-soft)}
.section.soft2{background:var(--bg-soft2)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px;flex-wrap:wrap}
.section-tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-500);background:rgba(91,63,209,.09);border-radius:999px;padding:6px 14px;margin-bottom:14px}
.section-title{font-size:clamp(22px,2.6vw,28px)}
.section-desc{margin-top:10px;color:var(--muted);font-size:15px;max-width:720px}
.link-more{font-size:15px;font-weight:600;color:var(--brand-500);display:inline-flex;align-items:center;gap:6px;transition:color 200ms var(--ease),gap 200ms var(--ease)}
.link-more:hover{color:var(--aurora);gap:10px}

/* 双列卡片墙 */
.wall{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.wall-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-1);transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),border-color 200ms var(--ease);display:flex;flex-direction:column;gap:14px}
.wall-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(33,199,182,.4)}
.wall-top{display:flex;align-items:center;gap:12px}
.seal{width:38px;height:38px;border-radius:11px;border:1px solid rgba(242,180,65,.7);color:#a9781a;background:rgba(242,180,65,.12);display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;flex:0 0 auto}
.wall-card h3{font-size:20px}
.wall-card p{color:var(--muted);font-size:16px;line-height:1.85}
.tagline{display:inline-flex;align-items:center;gap:6px;align-self:flex-start;padding:5px 12px;border-radius:999px;font-size:13px;background:rgba(33,199,182,.12);color:#0f7b70;font-weight:600}
.tagline.gold{background:rgba(242,180,65,.16);color:#8d6412}

/* FAQ 手风琴 */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:960px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--sh-1);transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease)}
.faq-item.is-open{border-color:rgba(33,199,182,.45);box-shadow:var(--sh-2),inset 3px 0 0 0 var(--aurora)}
.faq-q{display:flex;align-items:center;gap:14px;width:100%;text-align:left;padding:20px 22px;font-size:17px;font-weight:600}
.faq-mark{width:26px;height:26px;border-radius:9px;background:rgba(91,63,209,.1);color:var(--brand-500);display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;flex:0 0 auto}
.faq-text{flex:1 1 auto}
.faq-plus{position:relative;width:18px;height:18px;flex:0 0 auto;transition:transform 200ms var(--ease)}
.faq-plus::before,.faq-plus::after{content:"";position:absolute;background:#6d6690;border-radius:2px}
.faq-plus::before{left:0;top:8px;width:18px;height:2px}
.faq-plus::after{top:0;left:8px;width:2px;height:18px}
.faq-item.is-open .faq-plus{transform:rotate(45deg)}
.faq-item.is-open .faq-plus::before,.faq-item.is-open .faq-plus::after{background:var(--aurora)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms var(--ease)}
.faq-a p{padding:0 22px 22px 62px;color:var(--muted);font-size:16px;line-height:1.9}
.faq-note{margin-top:18px;color:var(--muted);font-size:14px}

/* 起步清单 */
.step-wrap{display:grid;grid-template-columns:repeat(12,1fr);gap:40px;align-items:center}
.step-text{grid-column:span 7}
.step-figure{grid-column:span 5}
.step-figure .frame{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);aspect-ratio:16/10;background:linear-gradient(135deg,#5B3FD1,#21C7B6)}
.step-figure img{width:100%;height:100%;object-fit:cover}
.step-list{display:flex;flex-direction:column;gap:0;margin-top:8px}
.step-row{display:flex;gap:18px;padding:22px 0;border-bottom:1px dashed var(--line)}
.step-row:last-child{border-bottom:0}
.step-no{width:44px;height:44px;border-radius:14px;background:var(--bg-soft);border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-variant-numeric:tabular-nums;color:var(--brand-500);flex:0 0 auto}
.step-row h3{font-size:18px;margin-bottom:6px}
.step-row p{color:var(--muted);font-size:15.5px;line-height:1.85}

/* 相关分类 */
.rel-chips{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.rel-chips .chip{padding:10px 20px;font-size:15px}

/* CTA 条 */
.cta-band{position:relative;background:var(--brand-900);overflow:hidden;padding:72px 0}
.cta-band::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;opacity:.24}
.cta-band::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 20% 30%,rgba(124,92,240,.35),transparent 55%),radial-gradient(circle at 80% 70%,rgba(33,199,182,.28),transparent 55%),radial-gradient(rgba(255,255,255,.09) 1px,transparent 1px);background-size:auto,auto,26px 26px}
.cta-card{position:relative;z-index:2;background:rgba(20,15,46,.62);border:1px solid rgba(255,255,255,.16);border-radius:28px;padding:36px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;backdrop-filter:blur(8px)}
.cta-card h2{color:#fff;font-size:clamp(22px,2.6vw,28px)}
.cta-card p{color:rgba(255,255,255,.82);margin-top:10px;font-size:16px;max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn-outline-light{border:1px solid rgba(255,255,255,.4);color:#fff;background:rgba(255,255,255,.06)}
.btn-outline-light:hover{background:rgba(255,255,255,.16);border-color:rgba(33,199,182,.7)}

/* 页脚 */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.82);padding:64px 0 28px;position:relative}
.footer-top{height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.28),transparent);margin-bottom:44px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px}
.footer-brand .brand-text b{color:#fff}
.footer-brand .brand-text em{color:rgba(255,255,255,.6)}
.footer-brand p{margin:16px 0 18px;font-size:15px;line-height:1.9;color:rgba(255,255,255,.72);max-width:320px}
.footer-social{display:flex;gap:10px;flex-wrap:wrap}
.footer-social a{padding:7px 14px;border-radius:999px;border:1px solid rgba(255,255,255,.24);font-size:13px;color:rgba(255,255,255,.85);transition:background 200ms var(--ease),border-color 200ms var(--ease)}
.footer-social a:hover{background:rgba(33,199,182,.18);border-color:rgba(33,199,182,.6)}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col p{font-size:14.5px;color:rgba(255,255,255,.72);transition:color 200ms var(--ease)}
.footer-col a:hover{color:var(--aurora)}
.footer-bottom{margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13.5px;color:rgba(255,255,255,.6)}

/* 响应式 */
@media (max-width:1280px){
  .header-inner{gap:14px}
}
@media (max-width:1024px){
  .section{padding:72px 0}
  .nav-chips{justify-content:flex-start;flex:1 1 100%;order:3;margin:0 -24px 10px;padding:6px 24px 10px}
  .header-inner{height:auto;padding:12px 0 6px;flex-wrap:wrap}
  .nav-toggle{display:inline-flex}
  .header-actions .btn-primary{display:none}
  .step-wrap{gap:32px}
  .step-text{grid-column:span 12}
  .step-figure{grid-column:span 12}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  body{font-size:16px}
  .section{padding:56px 0}
  .wall{grid-template-columns:1fr}
  .page-head{padding:24px 0 0}
  .banner{aspect-ratio:16/9}
  .faq-q{font-size:16px;padding:18px}
  .faq-a p{padding:0 18px 20px 54px}
  .cta-card{padding:26px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .section{padding:44px 0}
  .wall-card{padding:22px}
  .wall-card h3{font-size:18px}
  .cta-actions .btn{width:100%}
  .footer-bottom{flex-direction:column}
}