/* roulang page: index */
:root{
  --primary:#4B2BD7;
  --primary-700:#3A1FB0;
  --primary-050:#EDE9FF;
  --accent:#12C8A0;
  --highlight:#FF7A2F;
  --canvas:#F6F4F0;
  --surface:#FFFFFF;
  --ink-section:#17132B;
  --ink-900:#12131A;
  --ink-600:#4A4F5C;
  --ink-400:#8A8F9C;
  --line:rgba(18,19,26,.10);
  --line-strong:rgba(18,19,26,.18);
  --danger:#D64545;
  --danger-soft:#FF9B9B;
  --r-chip:10px;
  --r-card:16px;
  --r-panel:24px;
  --r-pill:999px;
  --e1:0 1px 2px rgba(18,19,26,.06);
  --e2:0 8px 24px -12px rgba(75,43,215,.18);
  --e3:0 16px 40px -20px rgba(75,43,215,.28);
  --gap-1:8px;
  --gap-2:16px;
  --gap-3:24px;
  --gap-4:32px;
  --gap-5:48px;
  --gap-6:72px;
  --gap-7:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  background:var(--canvas);
  color:var(--ink-900);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;background:#EDEAE4}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
time,.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 40px}
.section{padding:88px 0;position:relative}
.section-tint{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-grid-bg::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(18,19,26,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(18,19,26,.035) 1px,transparent 1px);
  background-size:24px 24px;
}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px;position:relative}
.section-title{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:-.015em}
.section-sub{margin-top:10px;color:var(--ink-600);font-size:15.5px;max-width:760px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--primary-050);color:var(--primary-700);
  border-radius:var(--r-pill);padding:7px 16px;font-size:13.5px;font-weight:600;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--accent)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);padding:14px 28px;font-weight:600;font-size:15px;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,filter .18s ease;
}
.btn-primary{background:var(--highlight);color:#fff;box-shadow:var(--e2)}
.btn-primary:hover{filter:brightness(.92);transform:translateY(-1px);box-shadow:var(--e3)}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--e1)}
.btn-primary:disabled,.btn-primary[aria-disabled="true"]{opacity:.4;cursor:not-allowed;transform:none;filter:none;box-shadow:none}
.btn-outline{background:transparent;border-color:var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary-050)}
.btn-outline:active{background:var(--primary-050);transform:translateY(1px)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-block{width:100%}
.btn-ghost{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:15px;background:none;border:0;cursor:pointer;padding:4px 0}
.btn-ghost .arrow{transition:transform .18s ease;display:inline-block}
.btn-ghost:hover{color:var(--primary-700)}
.btn-ghost:hover .arrow{transform:translateX(4px)}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  border:1px solid var(--line);background:#fff;color:var(--ink-600);
  border-radius:var(--r-pill);padding:5px 13px;font-size:12.5px;font-weight:500;line-height:1.5;
}
.chip-primary{background:var(--primary-050);border-color:transparent;color:var(--primary-700);font-weight:600}
.chip-accent{background:rgba(18,200,160,.12);border-color:transparent;color:#0B8C70;font-weight:600}
/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--canvas);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header.is-stuck{background:var(--surface);box-shadow:var(--e2)}
.header-inner{display:flex;align-items:center;gap:24px;height:76px}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:36px;height:36px;border-radius:11px;background:var(--primary);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:17px;line-height:1;flex-shrink:0;
}
.logo-text{font-weight:800;font-size:17px;letter-spacing:-.01em;white-space:nowrap}
.seg-nav{
  display:flex;align-items:center;gap:6px;flex:1 1 auto;min-width:0;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.seg-nav::-webkit-scrollbar{display:none}
.seg-chip{
  padding:8px 16px;border-radius:var(--r-pill);font-size:14.5px;font-weight:500;
  color:var(--ink-600);background:transparent;border:1px solid transparent;
  white-space:nowrap;transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.seg-chip:hover{background:var(--primary-050);color:var(--primary-700)}
.seg-chip.is-active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}
.header-actions{display:flex;align-items:center;gap:16px;flex-shrink:0}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;cursor:pointer;padding:0;place-items:center;gap:4px;flex-direction:column;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-900);transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);z-index:80;
  background:#fff;padding:92px 22px 32px;overflow-y:auto;
  transform:translateX(105%);transition:transform .28s cubic-bezier(.4,0,.2,1);
  box-shadow:-16px 0 44px -22px rgba(18,19,26,.34);
}
.drawer.is-open{transform:translateX(0)}
.drawer-mask{position:fixed;inset:0;background:rgba(18,19,26,.42);z-index:79;opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer-nav{display:flex;flex-direction:column;gap:10px;margin-bottom:20px}
.drawer-link{
  padding:13px 16px;border-radius:14px;border:1px solid var(--line);
  font-weight:600;color:var(--ink-600);transition:background-color .2s,color .2s,border-color .2s;
}
.drawer-link:hover{background:var(--primary-050);color:var(--primary-700)}
.drawer-link.is-active{background:var(--primary);border-color:var(--primary);color:#fff}
.drawer-cta{width:100%}
/* ============ hero ============ */
.hero{padding:60px 0 0;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(75,43,215,.14),transparent 68%);pointer-events:none;
}
.hero::after{
  content:"";position:absolute;left:-80px;bottom:40px;width:200px;height:200px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,200,160,.16),transparent 70%);pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;position:relative}
.hero-copy{display:flex;flex-direction:column;align-items:flex-start;gap:22px}
.hero h1{font-size:44px;line-height:1.22;font-weight:800;letter-spacing:-.02em;max-width:15em}
.hero h1 em{font-style:normal;color:var(--primary);position:relative}
.hero h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:4px;height:10px;
  background:rgba(255,122,47,.22);border-radius:6px;z-index:-1;
}
.hero-lead{font-size:17px;color:var(--ink-600);max-width:34em}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.trust-row{display:flex;flex-wrap:wrap;gap:10px 26px;padding-top:6px}
.trust-item{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-600)}
.trust-item .dot{width:8px;height:8px;border-radius:3px;background:var(--accent);flex-shrink:0}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:20px;
  box-shadow:var(--e2);border:1px solid var(--line);
}
.hero-float{
  position:absolute;left:-20px;bottom:26px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:14px 20px;box-shadow:var(--e3);
}
.hero-float .num{display:block;font-size:24px;font-weight:800;color:var(--primary);line-height:1.2}
.hero-float .lbl{font-size:12.5px;color:var(--ink-400)}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  margin-top:64px;border-top:1px solid var(--line);padding-top:28px;
}
.hero-stats li{padding:0 24px;border-left:1px solid var(--line)}
.hero-stats li:first-child{padding-left:0;border-left:0}
.stat-num{display:block;font-size:28px;font-weight:800;letter-spacing:-.02em;line-height:1.25}
.stat-num i{font-style:normal;font-size:16px;font-weight:600;color:var(--ink-400);margin-left:2px}
.stat-label{display:block;font-size:13.5px;color:var(--ink-400);margin-top:4px}
/* ============ selling points ============ */
.point-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch}
.point-main{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-panel);
  padding:40px;display:flex;flex-direction:column;gap:18px;overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease;
}
.point-main::before{
  content:"";position:absolute;left:0;top:36px;bottom:36px;width:3px;border-radius:0 3px 3px 0;
  background:var(--primary);transform:scaleY(0);transform-origin:top;transition:transform .28s ease;
}
.point-main:hover{transform:translateY(-4px);box-shadow:var(--e3)}
.point-main:hover::before{transform:scaleY(1)}
.point-index{font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--primary);font-variant-numeric:tabular-nums}
.point-main h3{font-size:24px;font-weight:700;letter-spacing:-.015em;line-height:1.4}
.point-main p{color:var(--ink-600);font-size:15.5px;max-width:38em}
.point-icon{
  width:54px;height:54px;border-radius:16px;background:var(--primary-050);color:var(--primary);
  display:grid;place-items:center;font-size:22px;font-weight:800;
}
.point-side{display:flex;flex-direction:column;gap:24px}
.point-bar{
  position:relative;flex:1;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;display:flex;gap:18px;align-items:flex-start;overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease;
}
.point-bar::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;border-radius:0 3px 3px 0;
  background:var(--primary);transform:scaleY(0);transform-origin:top;transition:transform .28s ease;
}
.point-bar:hover{transform:translateY(-4px);box-shadow:var(--e3)}
.point-bar:hover::before{transform:scaleY(1)}
.point-bar .point-icon{width:46px;height:46px;border-radius:14px;font-size:18px;background:rgba(18,200,160,.14);color:#0B8C70}
.point-bar h3{font-size:19px;font-weight:600;line-height:1.45}
.point-bar p{color:var(--ink-600);font-size:14.5px;margin-top:6px}
/* ============ scene ============ */
.scene-grid{display:grid;grid-template-columns:3fr 9fr;gap:28px;align-items:start}
.scene-tabs{display:flex;flex-direction:column;gap:10px}
.scene-tab{
  text-align:left;padding:16px 18px;border-radius:14px;border:1px solid var(--line);
  background:#fff;font-weight:600;font-size:15px;color:var(--ink-600);cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.scene-tab:hover{background:var(--primary-050);color:var(--primary-700)}
.scene-tab.is-active{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:var(--e2)}
.scene-tab:active{transform:translateY(1px)}
.scene-body{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-panel);padding:28px;box-shadow:var(--e1)}
.scene-panel{display:none}
.scene-panel.is-active{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.scene-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card)}
.scene-text h3{font-size:21px;font-weight:700;line-height:1.45;margin-bottom:14px}
.check-list{display:flex;flex-direction:column;gap:10px;margin-bottom:22px}
.check-list li{position:relative;padding-left:20px;color:var(--ink-600);font-size:15px}
.check-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:2px;background:var(--primary);
}
/* ============ news ============ */
.news-feature{
  display:grid;grid-template-columns:5fr 7fr;gap:32px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-panel);padding:24px;margin-bottom:24px;
  transition:transform .22s ease,box-shadow .22s ease;
}
.news-feature:hover{transform:translateY(-4px);box-shadow:var(--e3)}
.news-feature-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card)}
.news-feature-body{display:flex;flex-direction:column;align-items:flex-start;gap:14px;justify-content:center}
.news-feature-body h3{font-size:22px;font-weight:700;line-height:1.45;letter-spacing:-.01em;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-feature-body h3 a:hover{color:var(--primary-700)}
.news-feature-body p{color:var(--ink-600);font-size:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:12px;color:var(--ink-400);font-size:13.5px}
.news-rows{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.news-row{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:20px 6px;border-bottom:1px solid var(--line);
  transition:background-color .2s ease,padding-left .2s ease;
}
.news-row:hover{background:var(--primary-050);padding-left:16px;border-radius:12px}
.news-row-main{min-width:0;flex:1 1 auto}
.news-row-main h4{font-size:16.5px;font-weight:600;line-height:1.5;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.news-row-main p{color:var(--ink-600);font-size:14px;margin-top:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-row-meta{display:flex;align-items:center;gap:12px;flex-shrink:0;color:var(--ink-400);font-size:13.5px}
.empty-state{
  border:1.5px dashed var(--line-strong);border-radius:var(--r-panel);background:var(--surface);
  padding:56px 32px;display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;
}
.empty-state .empty-icon{
  width:56px;height:56px;border-radius:18px;background:var(--primary-050);color:var(--primary);
  display:grid;place-items:center;font-size:24px;
}
.empty-state p{color:var(--ink-600);font-size:15px}
/* ============ social proof ============ */
.proof{background:var(--ink-section);color:#fff}
.proof-top{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.proof .section-title{color:#fff}
.proof .section-sub{color:rgba(255,255,255,.66)}
.proof-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.proof-stat{border-left:1px solid rgba(255,255,255,.16);padding-left:22px}
.proof-stat .stat-num{color:#fff;font-size:30px}
.proof-stat .stat-label{color:rgba(255,255,255,.6)}
.proof-logos{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:56px;
  padding-top:32px;border-top:1px solid rgba(255,255,255,.14);
}
.proof-logo{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid rgba(255,255,255,.18);border-radius:var(--r-chip);
  padding:12px 20px;color:rgba(255,255,255,.62);font-size:14px;font-weight:600;
  background:rgba(255,255,255,.04);transition:color .2s ease,border-color .2s ease;
}
.proof-logo:hover{color:#fff;border-color:rgba(255,255,255,.4)}
.proof-logo:nth-child(1){padding-left:16px;padding-right:26px}
.proof-logo:nth-child(2){padding-left:26px;padding-right:16px}
.proof-logo:nth-child(4){padding-left:18px;padding-right:30px}
/* ============ faq ============ */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.faq-side{position:sticky;top:104px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item.is-open{border-color:transparent;box-shadow:var(--e2)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;line-height:1.5;color:var(--ink-900);
  border-left:3px solid transparent;transition:background-color .2s ease,border-color .2s ease,color .2s ease;
}
.faq-q:hover{background:var(--primary-050);color:var(--primary-700)}
.faq-item.is-open .faq-q{background:var(--primary-050);border-left-color:var(--primary);color:var(--primary-700)}
.faq-arrow{flex-shrink:0;width:20px;height:20px;transition:transform .2s ease;color:var(--primary)}
.faq-item.is-open .faq-arrow{transform:rotate(180deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .2s ease}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a-inner p{padding:0 22px 22px 25px;color:var(--ink-600);font-size:15px;max-width:46em}
/* ============ cta ============ */
.cta-panel{
  position:relative;overflow:hidden;border-radius:var(--r-panel);background:var(--ink-section);color:#fff;
  padding:48px;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
}
.cta-panel::after{
  content:"";position:absolute;top:-46px;right:-60px;width:280px;height:180px;pointer-events:none;
  background:repeating-linear-gradient(8deg,rgba(255,122,47,.55) 0 5px,transparent 5px 15px);
  transform:rotate(8deg);
}
.cta-copy h2{font-size:28px;font-weight:700;line-height:1.4;letter-spacing:-.015em;margin-bottom:14px}
.cta-copy p{color:rgba(255,255,255,.7);font-size:15.5px;max-width:36em}
.cta-points{display:flex;flex-direction:column;gap:8px;margin-top:22px}
.cta-points li{position:relative;padding-left:22px;color:rgba(255,255,255,.72);font-size:14.5px}
.cta-points li::before{
  content:"";position:absolute;left:0;top:.6em;width:10px;height:3px;border-radius:2px;background:var(--accent);
}
.cta-form{display:flex;flex-direction:column;gap:16px;position:relative;z-index:1}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:14px;font-weight:600;color:rgba(255,255,255,.86)}
.field input{
  border-radius:12px;border:1.5px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.08);color:#fff;padding:13px 15px;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field input::placeholder{color:rgba(255,255,255,.42)}
.field input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(75,43,215,.45);background:rgba(255,255,255,.12)}
.field.has-error input{border-color:var(--danger);box-shadow:0 0 0 3px rgba(214,69,69,.22)}
.field .err{font-size:13px;color:var(--danger-soft);display:none}
.field.has-error .err{display:block}
.form-note{font-size:13.5px;min-height:20px;color:rgba(255,255,255,.7)}
/* ============ footer ============ */
.site-footer{background:var(--surface);border-top:1px solid var(--line);padding:72px 0 0;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:4fr 3fr 3fr 2fr;gap:40px}
.footer-brand p{color:var(--ink-600);font-size:14.5px;margin-top:16px;max-width:30em}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{color:var(--ink-600);font-size:14.5px}
.footer-col a{transition:color .2s ease,text-decoration-color .2s ease;text-decoration:underline;text-decoration-color:transparent;text-underline-offset:4px}
.footer-col a:hover{color:var(--primary);text-decoration-color:var(--primary)}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line);padding:24px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px 32px;justify-content:space-between;
  color:var(--ink-400);font-size:13.5px;
}
/* ============ mobile cta bar ============ */
.mobile-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;
  align-items:center;justify-content:space-between;gap:14px;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -8px 28px -18px rgba(18,19,26,.4);
  transform:translateY(120%);opacity:0;transition:transform .3s ease,opacity .3s ease;
}
.mobile-cta.is-visible{transform:translateY(0);opacity:1}
.mobile-cta .mc-text{font-size:13.5px;color:var(--ink-600);line-height:1.4}
.mobile-cta .mc-text strong{display:block;color:var(--ink-900);font-size:14.5px}
/* ============ responsive ============ */
@media (max-width:1279px){
  .hero h1{font-size:40px}
}
@media (max-width:1023px){
  .container{padding:0 32px}
  .section{padding:64px 0}
  .hero{padding:44px 0 0}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{order:2}
  .hero-float{left:auto;right:16px;bottom:-16px}
  .hero-stats{margin-top:52px}
  .hero-stats li{padding:0 16px}
  .point-grid{grid-template-columns:1fr}
  .point-side{flex-direction:row}
  .scene-grid{grid-template-columns:1fr;gap:20px}
  .scene-tabs{flex-direction:row;overflow-x:auto;scrollbar-width:none;padding-bottom:4px}
  .scene-tabs::-webkit-scrollbar{display:none}
  .scene-tab{white-space:nowrap}
  .proof-top{grid-template-columns:1fr;gap:32px}
  .faq-grid{grid-template-columns:1fr;gap:32px}
  .faq-side{position:static}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{padding-bottom:78px}
  .container{padding:0 20px}
  .section{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px}
  .section-title{font-size:24px}
  .seg-nav,.header-actions{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .logo-text{font-size:15px}
  .header-inner{gap:12px;height:68px}
  .hero{padding:36px 0 0}
  .hero-grid{gap:28px}
  .hero h1{font-size:28px;line-height:1.3}
  .hero-lead{font-size:15.5px}
  .hero-copy{gap:18px}
  .hero-cta{width:100%;flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
  .hero-media img{aspect-ratio:auto;height:220px}
  .hero-float{position:static;margin-top:16px;left:auto;right:auto;box-shadow:var(--e1)}
  .hero-stats{grid-template-columns:1fr 1fr;gap:20px 0;margin-top:40px;padding-top:22px}
  .hero-stats li{padding-left:16px}
  .hero-stats li:nth-child(odd){padding-left:0;border-left:0}
  .stat-num{font-size:22px}
  .point-main{padding:26px}
  .point-main h3{font-size:20px}
  .point-side{flex-direction:column}
  .scene-body{padding:18px}
  .scene-panel.is-active{grid-template-columns:1fr;gap:20px}
  .news-feature{grid-template-columns:1fr;gap:20px;padding:18px}
  .news-feature-body h3{font-size:18px}
  .news-row{flex-direction:column;align-items:flex-start;gap:12px}
  .news-row-meta{width:100%}
  .proof-stats{grid-template-columns:1fr;gap:20px}
  .proof-stat{border-left:0;border-top:1px solid rgba(255,255,255,.16);padding-left:0;padding-top:16px}
  .proof-stat:first-child{border-top:0;padding-top:0}
  .proof-logos{margin-top:36px;padding-top:24px}
  .cta-panel{padding:28px 22px;border-radius:20px}
  .cta-copy h2{font-size:22px}
  .cta-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding:48px 0 0;margin-top:48px}
  .footer-bottom{flex-direction:column;gap:8px;margin-top:36px}
  .mobile-cta{display:flex}
}
@media (max-width:479px){
  .hero h1{font-size:25px}
  .hero-stats{grid-template-columns:1fr}
  .hero-stats li{padding-left:0;border-left:0}
  .stat-num{font-size:21px}
  .point-icon{width:46px;height:46px;border-radius:14px}
  .proof-logo{padding:10px 14px;font-size:13px}
  .news-row-main h4{white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --primary:#4B2BD7;
  --primary-700:#3A1FB0;
  --primary-050:#EDE9FF;
  --accent:#12C8A0;
  --highlight:#FF7A2F;
  --canvas:#F6F4F0;
  --surface:#FFFFFF;
  --ink-section:#17132B;
  --ink-900:#12131A;
  --ink-600:#4A4F5C;
  --ink-400:#8A8F9C;
  --line:rgba(18,19,26,.10);
  --danger:#D64545;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --e1:0 1px 2px rgba(18,19,26,.06);
  --e2:0 8px 24px -12px rgba(75,43,215,.18);
  --e3:0 16px 40px -20px rgba(75,43,215,.28);
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","SFMono-Regular",ui-monospace,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink-900);
  background:var(--canvas);
  background-image:linear-gradient(rgba(18,19,26,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(18,19,26,.035) 1px,transparent 1px);
  background-size:24px 24px;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease}
a:hover{color:var(--primary-700)}
h1,h2,h3,h4{margin:0;letter-spacing:-.015em;color:var(--ink-900)}
p{margin:0}
ul,ol{margin:0;padding:0}
button,input,textarea{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 40px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ---------- 按钮 / 标签 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-pill);border:1.5px solid transparent;
  font-weight:600;font-size:15px;line-height:1;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--highlight);color:#fff;box-shadow:var(--e2)}
.btn-primary:hover{background:#F06B1E;color:#fff;transform:translateY(-1px);box-shadow:var(--e3)}
.btn-primary:active{transform:translateY(0)}
.btn-primary:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.btn-outline{border-color:var(--primary);color:var(--primary);background:transparent}
.btn-outline:hover{background:var(--primary-050);color:var(--primary-700)}
.btn-ghost{color:var(--primary);padding:8px 0;border-radius:0;font-weight:600;background:transparent}
.btn-ghost .arrow{transition:transform .18s ease}
.btn-ghost:hover .arrow{transform:translateX(4px)}
.btn-sm{padding:11px 20px;font-size:14px}
.btn-block{width:100%}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:var(--r-pill);
  background:var(--primary-050);color:var(--primary-700);
  font-size:12px;line-height:18px;font-weight:600;
}
.chip-accent{background:rgba(18,200,160,.14);color:#0B8E72}
.tag-chip{
  display:inline-flex;align-items:center;
  padding:8px 16px;border-radius:var(--r-pill);
  background:var(--surface);border:1px solid var(--line);
  color:var(--ink-600);font-size:13px;line-height:18px;
}
.tag-chip:hover{background:var(--primary-050);color:var(--primary-700);border-color:rgba(75,43,215,.2)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,240,.86);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease,background-color .2s ease;
}
.site-header.is-stuck{background:#fff;box-shadow:var(--e2)}
.header-inner{display:flex;align-items:center;gap:24px;min-height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:36px;height:36px;border-radius:12px;flex:none;
  background:linear-gradient(140deg,var(--primary),#6B4BFF);
  color:#fff;font-weight:800;font-size:17px;
  display:flex;align-items:center;justify-content:center;
}
.logo-text{font-size:17px;font-weight:800;color:var(--ink-900);letter-spacing:-.01em;white-space:nowrap}
.seg-nav{
  display:flex;align-items:center;gap:6px;
  margin-left:8px;padding:5px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.7);border:1px solid var(--line);
  overflow-x:auto;scrollbar-width:none;max-width:100%;
}
.seg-nav::-webkit-scrollbar{display:none}
.seg-chip{
  flex:none;padding:9px 16px;border-radius:var(--r-pill);
  font-size:14px;font-weight:500;color:var(--ink-600);white-space:nowrap;
  transition:background-color .18s ease,color .18s ease;
}
.seg-chip:hover{background:var(--primary-050);color:var(--primary-700)}
.seg-chip.is-active{background:var(--primary);color:#fff;font-weight:600}
.header-actions{display:flex;align-items:center;gap:18px;margin-left:auto;flex:none}
.header-actions .text-link{font-size:14px;font-weight:600;color:var(--ink-600)}
.header-actions .text-link:hover{color:var(--primary)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 文章页头部 ---------- */
.page-shell{padding:36px 0 88px}
.breadcrumb{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;line-height:32px;color:var(--ink-400)}
.breadcrumb a{color:var(--ink-400)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(18,19,26,.22)}
.breadcrumb .current{color:var(--ink-900);font-weight:600}
.article-head{padding:20px 0 26px;border-bottom:1px solid var(--line)}
.article-head h1{font-size:34px;line-height:44px;font-weight:800;max-width:900px}
.article-meta{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:18px;font-size:14px;color:var(--ink-400)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(18,19,26,.18)}
.article-meta time{font-family:var(--font-num);font-variant-numeric:tabular-nums;color:var(--ink-600)}
.article-layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:48px;padding-top:40px;align-items:start}
.article-main{min-width:0}
.article-body{max-width:760px}
.article-body>*+*{margin-top:20px}
.article-body p{font-size:16px;line-height:1.75;color:var(--ink-600);margin:0}
.article-body h2{
  font-size:26px;line-height:36px;font-weight:700;margin:44px 0 0;
  padding-left:14px;border-left:4px solid var(--primary);
}
.article-body h3{font-size:20px;line-height:30px;font-weight:600;margin:30px 0 0}
.article-body h2+p,.article-body h3+p{margin-top:16px}
.article-body ul,.article-body ol{padding-left:0;list-style:none}
.article-body ul li{position:relative;padding-left:20px;margin-top:10px;font-size:16px;line-height:1.75;color:var(--ink-600)}
.article-body ul li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--primary)}
.article-body ol{counter-reset:li;padding-left:0}
.article-body ol li{position:relative;padding-left:32px;margin-top:10px;font-size:16px;line-height:1.75;color:var(--ink-600);counter-increment:li}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:5px;
  width:20px;height:20px;border-radius:50%;background:var(--primary-050);color:var(--primary-700);
  font-size:12px;line-height:20px;text-align:center;font-weight:600;font-family:var(--font-num);
}
.article-body blockquote{
  margin:0;padding:16px 20px;background:var(--primary-050);
  border-left:3px solid var(--primary);border-radius:0 12px 12px 0;color:var(--ink-900);
}
.article-body blockquote p{color:var(--ink-900)}
.article-body img{border-radius:12px;margin:24px auto;width:auto;max-width:100%;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;line-height:22px;color:var(--ink-400);text-align:center;margin-top:10px}
.table-wrap{width:100%;overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface)}
.article-body table{width:100%;border-collapse:collapse;min-width:520px;font-size:15px}
.article-body thead th{background:var(--primary);color:#fff;font-weight:600;text-align:left;padding:14px 16px;white-space:nowrap}
.article-body tbody td{padding:13px 16px;border-top:1px solid var(--line);color:var(--ink-600)}
.article-body tbody tr:nth-child(odd){background:var(--primary-050)}
.article-body pre{
  background:var(--ink-section);color:#EDE9FF;border-radius:12px;padding:18px 20px;
  overflow-x:auto;font-family:var(--font-num);font-size:14px;line-height:24px;
}
.article-body code{font-family:var(--font-num);font-size:14px;background:var(--primary-050);color:var(--primary-700);padding:2px 6px;border-radius:6px}
.article-body pre code{background:transparent;color:inherit;padding:0}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--primary-700);text-decoration-thickness:2px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

/* ---------- 文末 ---------- */
.article-foot{margin-top:48px;padding-top:28px;border-top:1px solid var(--line);display:flex;align-items:center;gap:16px;flex-wrap:wrap;justify-content:space-between}
.tag-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.article-foot .btn-ghost{border:1.5px solid var(--primary);border-radius:var(--r-pill);padding:11px 22px;font-size:14px}
.article-foot .btn-ghost:hover{background:var(--primary-050)}

/* ---------- 侧栏 ---------- */
.side-col{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:22px;box-shadow:var(--e1)}
.side-card h3{font-size:16px;line-height:26px;font-weight:700;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--primary)}
.side-links{margin-top:14px;display:flex;flex-direction:column;gap:2px}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 0;font-size:14px;color:var(--ink-600);border-bottom:1px dashed var(--line)}
.side-links a:last-child{border-bottom:0}
.side-links a:hover{color:var(--primary);padding-left:4px}
.side-links a .arrow{color:var(--ink-400);font-size:12px}
.side-note{margin-top:14px;font-size:13px;line-height:22px;color:var(--ink-400)}
.side-card-dark{background:var(--ink-section);border-color:transparent;color:#fff}
.side-card-dark h3{color:#fff}
.side-card-dark h3::before{background:var(--accent)}
.side-card-dark .side-note{color:rgba(255,255,255,.66)}
.side-card-dark .side-links a{color:rgba(255,255,255,.82);border-bottom-color:rgba(255,255,255,.14)}
.side-card-dark .side-links a:hover{color:#fff}

/* ---------- 相关推荐 ---------- */
.related{padding:72px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}
.section-head h2{font-size:30px;line-height:40px;font-weight:700}
.section-head p{margin-top:8px;font-size:14px;color:var(--ink-400)}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--e1);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--e3);border-color:rgba(75,43,215,.22)}
.card-thumb{position:relative;aspect-ratio:4/3;background:var(--primary-050);overflow:hidden}
.card-thumb img{width:100%;height:100%;object-fit:cover}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17px;line-height:26px;font-weight:600}
.card-body h3 a{color:var(--ink-900)}
.card-body h3 a:hover{color:var(--primary)}
.card-body .excerpt{font-size:14px;line-height:24px;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:6px;font-size:12px;color:var(--ink-400)}
.card-foot time{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ---------- 空态 ---------- */
.empty-state{
  border:1px dashed rgba(75,43,215,.35);background:rgba(237,233,255,.5);
  border-radius:var(--r-md);padding:56px 24px;text-align:center;
}
.empty-state .icon{
  width:52px;height:52px;margin:0 auto 16px;border-radius:16px;
  background:var(--primary-050);color:var(--primary);font-size:24px;
  display:flex;align-items:center;justify-content:center;
}
.empty-state h3{font-size:20px;line-height:30px;font-weight:600}
.empty-state p{margin-top:10px;font-size:14px;color:var(--ink-600)}
.empty-state .btn{margin-top:22px}

/* ---------- 底部转化面板 ---------- */
.cta-panel{
  position:relative;overflow:hidden;margin-top:72px;
  background:var(--ink-section);border-radius:var(--r-lg);
  padding:48px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:40px;align-items:center;
}
.cta-panel::after{
  content:"";position:absolute;top:-40px;right:-60px;width:260px;height:200px;
  background:repeating-linear-gradient(98deg,rgba(255,122,47,.9) 0 6px,transparent 6px 16px);
  opacity:.35;transform:rotate(8deg);pointer-events:none;
}
.cta-panel h2{color:#fff;font-size:30px;line-height:40px;font-weight:700;position:relative;z-index:1}
.cta-panel p{margin-top:14px;color:rgba(255,255,255,.72);font-size:15px;line-height:26px;max-width:520px;position:relative;z-index:1}
.cta-form{position:relative;z-index:1;display:grid;gap:14px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:13px;color:rgba(255,255,255,.72)}
.field input{
  width:100%;padding:13px 16px;border-radius:12px;border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.06);color:#fff;transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.field input::placeholder{color:rgba(255,255,255,.42)}
.field input:focus{outline:none;border-color:var(--primary);background:rgba(255,255,255,.1);box-shadow:0 0 0 2px rgba(75,43,215,.45)}
.field.has-error input{border-color:var(--danger)}
.field .err{font-size:13px;line-height:20px;color:#FF9A9A;display:none}
.field.has-error .err{display:block}
.form-hint{font-size:13px;line-height:20px;color:rgba(255,255,255,.6)}
.form-success{font-size:13px;line-height:20px;color:#8EF0D6;display:none}
.form-success.is-visible{display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);margin-top:88px;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand p{margin-top:16px;font-size:14px;line-height:26px;color:var(--ink-600);max-width:320px}
.footer-col h4{font-size:14px;font-weight:700;letter-spacing:.02em;color:var(--ink-900);margin-bottom:16px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:12px}
.footer-col li{font-size:14px;color:var(--ink-600)}
.footer-col a{color:var(--ink-600)}
.footer-col a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--ink-400)}

/* ---------- 移动端固定转化条 ---------- */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;
  align-items:center;justify-content:space-between;gap:12px;
  padding:12px 20px calc(12px + env(safe-area-inset-bottom));
  background:rgba(23,19,43,.96);box-shadow:0 -8px 24px -16px rgba(18,19,26,.6);
  opacity:0;transform:translateY(12px);pointer-events:none;transition:opacity .25s ease,transform .25s ease;
}
.sticky-bar.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.sticky-bar span{color:rgba(255,255,255,.86);font-size:13px;line-height:20px}
.sticky-bar .btn{padding:11px 20px;font-size:14px}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 32px}
}
@media (max-width:1023px){
  .container{padding:0 32px}
  .seg-nav{display:none}
  .header-actions{display:none}
  .nav-toggle{display:flex}
  body.nav-open .seg-nav{
    display:flex;flex-direction:column;align-items:stretch;gap:6px;
    position:fixed;top:72px;right:16px;left:16px;z-index:80;
    padding:14px;border-radius:var(--r-md);background:#fff;box-shadow:var(--e3);
    max-height:70vh;overflow-y:auto;
  }
  body.nav-open .seg-chip{padding:13px 16px;font-size:15px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px}
  .side-col{position:static;top:auto}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-panel{grid-template-columns:minmax(0,1fr);padding:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .page-shell{padding:24px 0 64px}
  .article-head h1{font-size:26px;line-height:34px}
  .article-body h2{font-size:22px;line-height:32px}
  .article-body h3{font-size:19px;line-height:28px}
  .related{padding-top:48px}
  .section-head h2{font-size:24px;line-height:34px}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .cta-panel{margin-top:48px;padding:28px 22px;border-radius:var(--r-md)}
  .cta-panel h2{font-size:24px;line-height:34px}
  .cta-panel::after{display:none}
  .sticky-bar{display:flex}
  .site-footer{padding:48px 0 96px;margin-top:56px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-brand p{max-width:none}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  .logo-text{font-size:15px}
  .article-body p,.article-body ul li,.article-body ol li{font-size:16px}
  .btn{padding:13px 22px;font-size:14px}
}

/* roulang page: category1 */
:root{
  --primary:#4B2BD7;
  --primary-700:#3A1FB0;
  --primary-050:#EDE9FF;
  --accent:#12C8A0;
  --highlight:#FF7A2F;
  --canvas:#F6F4F0;
  --surface:#FFFFFF;
  --ink-section:#17132B;
  --ink-900:#12131A;
  --ink-600:#4A4F5C;
  --ink-400:#8A8F9C;
  --line:rgba(18,19,26,.10);
  --danger:#D64545;
  --radius-sm:10px;
  --radius-md:16px;
  --radius-lg:24px;
  --e1:0 1px 2px rgba(18,19,26,.06);
  --e2:0 8px 24px -12px rgba(75,43,215,.18);
  --e3:0 16px 40px -20px rgba(75,43,215,.28);
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink-900);
  background:var(--canvas);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font:inherit;color:inherit}
time,.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 40px}
.section{padding:88px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-title{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:-.01em}
.section-sub{font-size:15px;color:var(--ink-600);margin-top:10px;max-width:640px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--primary);background:var(--primary-050);border-radius:999px;padding:6px 14px;margin-bottom:18px}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(246,244,240,.86);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease,background .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{background:rgba(255,255,255,.96);box-shadow:var(--e2);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:24px;min-height:76px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:36px;height:36px;border-radius:10px;background:var(--primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:800;letter-spacing:0;
  box-shadow:var(--e2);
}
.logo-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink-900);white-space:nowrap}
.seg-nav{
  display:flex;align-items:center;gap:6px;
  background:var(--surface);border:1px solid var(--line);border-radius:999px;
  padding:6px;margin:0 auto;overflow-x:auto;scrollbar-width:none;
}
.seg-nav::-webkit-scrollbar{display:none}
.seg-chip{
  display:inline-flex;align-items:center;justify-content:center;
  padding:8px 16px;border-radius:999px;font-size:14px;font-weight:500;
  color:var(--ink-600);white-space:nowrap;transition:background .2s ease,color .2s ease;
}
.seg-chip:hover{background:var(--primary-050);color:var(--primary)}
.seg-chip.is-active{background:var(--primary);color:#fff;font-weight:600;box-shadow:var(--e2)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);cursor:pointer;align-items:center;justify-content:center;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900)}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.nav-mask{
  position:fixed;inset:0;background:rgba(18,19,26,.42);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:55;
}
.nav-mask.is-open{opacity:1;visibility:visible}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;font-size:15px;line-height:1.2;
  border-radius:999px;padding:14px 28px;border:1.5px solid transparent;
  cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,filter .2s ease,gap .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--highlight);color:#fff;box-shadow:var(--e2)}
.btn-primary:hover{filter:brightness(.92);transform:translateY(-1px);box-shadow:var(--e3)}
.btn-primary:active{transform:translateY(1px)}
.btn-secondary{border-color:var(--primary);color:var(--primary);background:transparent}
.btn-secondary:hover{background:var(--primary-050)}
.btn-secondary:active{transform:translateY(1px)}
.btn-ghost{color:var(--primary);padding:14px 10px;background:transparent}
.btn-ghost:hover{gap:12px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;box-shadow:none;transform:none}
.btn-sm{padding:10px 20px;font-size:14px}

/* ============ 面包屑 ============ */
.crumb-bar{padding:22px 0 0}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--ink-400);line-height:32px}
.crumb a{color:var(--ink-400);transition:color .2s ease}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:rgba(18,19,26,.22)}
.crumb .current{color:var(--ink-900);font-weight:600}

/* ============ 页头 左文右图 ============ */
.page-hero{padding:48px 0 72px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.hero-copy h1{font-size:44px;line-height:1.24;font-weight:800;letter-spacing:-.02em}
.hero-lead{font-size:18px;line-height:1.7;color:var(--ink-600);margin-top:20px;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.trust-row{display:flex;flex-wrap:wrap;gap:26px;margin-top:30px}
.trust-item{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-600)}
.trust-item i{width:18px;height:18px;border-radius:50%;background:var(--primary-050);color:var(--primary);display:inline-flex;align-items:center;justify-content:center;font-size:11px;font-style:normal;font-weight:700;flex:0 0 auto}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:20px;border:1px solid var(--line);box-shadow:var(--e2);
  background:#EFEDF8;
}
.hero-float{
  position:absolute;left:-24px;bottom:28px;background:var(--surface);
  border-radius:var(--radius-md);border:1px solid var(--line);box-shadow:var(--e3);
  padding:16px 20px;min-width:200px;
}
.hero-float .num{font-size:26px;font-weight:800;line-height:1.2;color:var(--primary);display:block}
.hero-float .lbl{font-size:13px;color:var(--ink-600);margin-top:4px;display:block}

/* ============ 数值进度条 ============ */
.meter-block{margin-top:40px;display:grid;gap:20px;max-width:520px}
.meter-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;font-size:14px}
.meter-head .name{color:var(--ink-600)}
.meter-head .val{font-weight:700;color:var(--ink-900);font-variant-numeric:tabular-nums}
.meter-track{height:8px;border-radius:999px;background:var(--primary-050);overflow:hidden;margin-top:8px}
.meter-fill{height:100%;border-radius:999px;background:var(--primary);transform-origin:left;animation:meterIn .9s ease both}
.meter-fill.alt{background:var(--accent)}
@keyframes meterIn{from{transform:scaleX(.1)}to{transform:scaleX(1)}}

/* ============ 要点错落网格 ============ */
.point-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;align-items:start}
.point-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-md);padding:30px 30px 28px;box-shadow:var(--e1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.point-card::before{
  content:"";position:absolute;left:-1px;top:28px;bottom:28px;width:3px;border-radius:3px;
  background:var(--primary);opacity:0;transition:opacity .25s ease;
}
.point-card:hover{transform:translateY(-4px);box-shadow:var(--e3)}
.point-card:hover::before{opacity:1}
.point-grid > .point-card:nth-child(even){margin-top:44px}
.point-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:10px;background:var(--primary-050);
  color:var(--primary);font-weight:800;font-size:14px;letter-spacing:.02em;margin-bottom:16px;
}
.point-card h3{font-size:20px;line-height:1.4;font-weight:600;letter-spacing:-.01em}
.point-card p{font-size:15px;line-height:1.75;color:var(--ink-600);margin-top:12px}
.point-tag{
  display:inline-flex;align-items:center;font-size:12px;font-weight:600;color:var(--accent);
  background:rgba(18,200,160,.12);border-radius:999px;padding:4px 12px;margin-top:16px;
}

/* ============ 参数清单表 ============ */
.table-wrap{
  overflow-x:auto;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-md);box-shadow:var(--e1);-webkit-overflow-scrolling:touch;
}
table.data{width:100%;border-collapse:collapse;min-width:820px;font-size:14.5px}
table.data thead th{
  background:var(--primary);color:#fff;font-weight:600;text-align:left;
  padding:16px 20px;white-space:nowrap;letter-spacing:.01em;
}
table.data tbody td{padding:16px 20px;border-top:1px solid var(--line);color:var(--ink-600);vertical-align:top}
table.data tbody td:first-child{color:var(--ink-900);font-weight:600;white-space:nowrap}
table.data tbody tr:nth-child(even){background:var(--primary-050)}
.table-note{font-size:13px;color:var(--ink-400);margin-top:14px}
.pill{
  display:inline-flex;align-items:center;font-size:12px;font-weight:600;
  border-radius:999px;padding:3px 10px;white-space:nowrap;
}
.pill-open{background:rgba(18,200,160,.14);color:#0A8F72}
.pill-cycle{background:rgba(255,122,47,.14);color:#C1541A}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.faq-aside{position:sticky;top:104px}
.faq-list{display:grid;gap:12px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  overflow:hidden;transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-left:3px solid var(--primary);background:var(--primary-050);box-shadow:var(--e1)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;font-size:16.5px;font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-arrow{
  width:26px;height:26px;flex:0 0 auto;border-radius:50%;background:var(--surface);
  border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;color:var(--primary);transition:transform .2s ease;
}
.faq-item[open] .faq-arrow{transform:rotate(180deg);background:var(--primary);color:#fff;border-color:var(--primary)}
.faq-body{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--ink-600)}

/* ============ 相关分类 chip ============ */
.chip-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
.chip-link{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 20px;border-radius:999px;background:var(--surface);
  border:1px solid var(--line);font-size:14.5px;font-weight:600;color:var(--ink-900);
  transition:background .2s ease,border-color .2s ease,transform .2s ease,color .2s ease;
}
.chip-link::after{content:"→";color:var(--primary);transition:transform .2s ease}
.chip-link:hover{background:var(--primary-050);border-color:rgba(75,43,215,.28);transform:translateY(-2px)}
.chip-link:hover::after{transform:translateX(4px)}
.chip-link.is-current{background:var(--primary);color:#fff;border-color:var(--primary)}
.chip-link.is-current::after{color:#fff}

/* ============ 底部转化面板 ============ */
.cta-panel{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:var(--ink-section);color:#fff;
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;
  padding:56px;
}
.cta-panel::after{
  content:"";position:absolute;top:-30px;right:-30px;width:240px;height:130px;
  background:repeating-linear-gradient(8deg,rgba(255,122,47,.85) 0 6px,rgba(255,122,47,0) 6px 15px);
  opacity:.7;pointer-events:none;
}
.cta-panel h2{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:-.01em;position:relative}
.cta-panel .cta-desc{font-size:15.5px;line-height:1.8;color:rgba(255,255,255,.72);margin-top:16px;max-width:460px;position:relative}
.cta-points{margin-top:26px;display:grid;gap:10px;position:relative}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:rgba(255,255,255,.82)}
.cta-points li i{width:16px;height:16px;margin-top:5px;border-radius:50%;background:var(--accent);flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;font-size:10px;font-style:normal;color:#0B3A30;font-weight:800}
.form-card{position:relative;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius-md);padding:28px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;font-weight:600;color:rgba(255,255,255,.86);margin-bottom:8px}
.field input{
  width:100%;padding:13px 15px;border-radius:12px;
  border:1.5px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);
  color:#fff;font:inherit;font-size:15px;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field input::placeholder{color:rgba(255,255,255,.42)}
.field input:focus{outline:none;border-color:var(--highlight);box-shadow:0 0 0 3px rgba(255,122,47,.28);background:rgba(255,255,255,.14)}
.field.has-error input{border-color:var(--danger);box-shadow:0 0 0 3px rgba(214,69,69,.24)}
.field-error{font-size:13px;color:#FFB7B7;margin-top:6px;min-height:18px;line-height:1.4}
.form-card .btn{width:100%;margin-top:6px}
.form-tip{font-size:12.5px;color:rgba(255,255,255,.5);margin-top:14px;line-height:1.6}
.form-success{
  margin-top:14px;font-size:13.5px;color:#8DF3D8;background:rgba(18,200,160,.14);
  border:1px solid rgba(18,200,160,.35);border-radius:12px;padding:12px 14px;display:none;
}
.form-success.is-visible{display:block}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-section);color:rgba(255,255,255,.78);margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding:64px 0 40px}
.footer-brand .logo-text{color:#fff}
.footer-brand .logo-mark{background:var(--primary)}
.footer-brand p{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.6);margin-top:18px;max-width:340px}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.01em}
.footer-col ul{display:grid;gap:11px}
.footer-col li{font-size:14.5px;color:rgba(255,255,255,.68);line-height:1.7}
.footer-col a{color:rgba(255,255,255,.68);transition:color .2s ease,text-underline-offset .2s ease}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--highlight)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom p{margin:0}

/* ============ 移动端固定转化条 ============ */
.mobile-convert{
  position:fixed;left:0;right:0;bottom:0;z-index:48;
  display:none;align-items:center;justify-content:space-between;gap:14px;
  padding:12px 20px calc(12px + env(safe-area-inset-bottom,0px));
  background:rgba(255,255,255,.97);border-top:1px solid var(--line);
  box-shadow:0 -8px 28px -20px rgba(18,19,26,.5);
  transform:translateY(110%);opacity:0;transition:transform .3s ease,opacity .3s ease;
}
.mobile-convert.is-visible{transform:translateY(0);opacity:1}
.mobile-convert .txt{font-size:13.5px;font-weight:600;color:var(--ink-900);line-height:1.4}
.mobile-convert .txt span{display:block;font-size:12px;font-weight:400;color:var(--ink-400)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 32px}
  .hero-grid{gap:48px}
}
@media (max-width:1023px){
  .container{padding:0 32px}
  .section{padding:64px 0}
  .menu-toggle{display:inline-flex}
  .seg-nav{
    position:fixed;top:0;right:0;height:100vh;width:min(320px,86vw);
    flex-direction:column;align-items:stretch;gap:8px;
    background:#fff;border:none;border-radius:0;padding:92px 24px 32px;
    margin:0;transform:translateX(106%);transition:transform .28s ease;
    box-shadow:-20px 0 48px -28px rgba(18,19,26,.55);z-index:60;overflow-y:auto;
  }
  .seg-nav.is-open{transform:translateX(0)}
  .seg-chip{justify-content:flex-start;width:100%;padding:13px 16px;font-size:15px;border-radius:12px}
  .header-actions .btn-ghost{display:none}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{order:2}
  .hero-copy h1{font-size:34px}
  .hero-float{left:16px;bottom:16px}
  .faq-grid{grid-template-columns:1fr;gap:32px}
  .faq-aside{position:static}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:48px 0}
  .site-footer{margin-top:56px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  .section-title{font-size:24px}
  .hero-copy h1{font-size:28px;line-height:1.3}
  .hero-lead{font-size:16px}
  .hero-actions .btn{flex:1 1 100%}
  .trust-row{gap:14px}
  .meter-block{margin-top:32px}
  .point-grid{grid-template-columns:1fr;gap:16px}
  .point-grid > .point-card:nth-child(even){margin-top:0}
  .point-card{padding:24px}
  .cta-panel{padding:28px 22px;border-radius:20px}
  .cta-panel h2{font-size:24px}
  .cta-panel::after{width:160px;height:90px}
  .form-card{padding:20px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .mobile-convert{display:flex}
  body{padding-bottom:78px}
  .hero-visual img{aspect-ratio:16/10}
}
@media (max-width:479px){
  .hero-copy h1{font-size:26px}
  .logo-text{font-size:15px}
  .header-actions .btn-primary{padding:11px 18px;font-size:14px}
}

/* roulang page: category2 */
:root{
  --primary:#4B2BD7;
  --primary-700:#3A1FB0;
  --primary-050:#EDE9FF;
  --accent:#12C8A0;
  --highlight:#FF7A2F;
  --canvas:#F6F4F0;
  --surface:#FFFFFF;
  --ink-section:#17132B;
  --ink-900:#12131A;
  --ink-600:#4A4F5C;
  --ink-400:#8A8F9C;
  --line:rgba(18,19,26,.10);
  --line-strong:rgba(18,19,26,.18);
  --danger:#D64545;
  --r-xs:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --e1:0 1px 2px rgba(18,19,26,.06);
  --e2:0 8px 24px -12px rgba(75,43,215,.18);
  --e3:0 16px 40px -20px rgba(75,43,215,.28);
  --s1:4px; --s2:8px; --s3:12px; --s4:16px; --s5:24px; --s6:32px; --s7:48px; --s8:72px; --s9:96px;
}

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

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

body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-900);
  background:var(--canvas);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:none;padding:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
time,.num{font-variant-numeric:tabular-nums;}

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

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 40px;}

/* ---------- 通用按钮与标签 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1.5px solid transparent;
  transition:background-color .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--highlight);color:#fff;box-shadow:var(--e2);}
.btn-primary:hover{background:#F06A1C;transform:translateY(-1px);box-shadow:var(--e3);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--e1);}
.btn-ghost{border-color:var(--primary);color:var(--primary);background:transparent;}
.btn-ghost:hover{background:var(--primary-050);}
.btn-solid{background:var(--primary);color:#fff;box-shadow:var(--e2);}
.btn-solid:hover{background:var(--primary-700);transform:translateY(-1px);box-shadow:var(--e3);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

.ghost-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--primary);
}
.ghost-link span{transition:transform .2s ease;display:inline-block;}
.ghost-link:hover span{transform:translateX(4px);}
.ghost-link:hover{color:var(--primary-700);}

.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--r-pill);
  font-size:12px;line-height:18px;font-weight:600;
  background:var(--surface);border:1px solid var(--line);color:var(--ink-600);
}
.chip-accent{background:var(--primary-050);border-color:transparent;color:var(--primary);}
.chip-mint{background:rgba(18,200,160,.12);border-color:transparent;color:#0B8A6E;}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,244,240,.96);
  border-bottom:1px solid transparent;
  transition:background-color .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  background:#fff;
  border-bottom-color:var(--line);
  box-shadow:var(--e2);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:76px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:36px;height:36px;border-radius:var(--r-xs);
  background:var(--primary);color:#fff;
  display:grid;place-items:center;
  font-size:16px;font-weight:800;flex:0 0 auto;
}
.logo-text{
  font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap;
}
.seg-nav{
  display:flex;align-items:center;gap:8px;
  flex:1 1 auto;justify-content:center;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  padding:4px 2px;
}
.seg-nav::-webkit-scrollbar{display:none;}
.seg-chip{
  display:inline-flex;align-items:center;
  padding:9px 18px;border-radius:var(--r-pill);
  font-size:14px;font-weight:600;color:var(--ink-600);
  background:var(--surface);border:1px solid var(--line);
  white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.seg-chip:hover{background:var(--primary-050);color:var(--primary);border-color:transparent;}
.seg-chip.is-active{
  background:var(--primary);color:#fff;border-color:transparent;
  box-shadow:var(--e2);
}
.header-actions{display:flex;align-items:center;gap:18px;flex:0 0 auto;}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-xs);
  border:1px solid var(--line);background:var(--surface);
  align-items:center;justify-content:center;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);position:relative;}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900);
}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}

.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:16px 0 24px;
}
.mobile-drawer.is-open{display:block;}
.drawer-list{display:flex;flex-direction:column;gap:8px;}
.drawer-link{
  display:block;padding:12px 16px;border-radius:var(--r-xs);
  font-size:15px;font-weight:600;color:var(--ink-600);
  border:1px solid var(--line);
}
.drawer-link.is-active{background:var(--primary-050);color:var(--primary);border-color:transparent;}
.drawer-cta{margin-top:16px;}

/* ---------- 版式通用 ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-dark{background:var(--ink-section);color:#fff;}
.section-head{max-width:760px;margin-bottom:48px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.12em;
  color:var(--primary);text-transform:uppercase;
  margin-bottom:12px;
}
.eyebrow::before{content:"";width:20px;height:2px;background:var(--primary);border-radius:2px;}
.section-title{font-size:30px;line-height:1.34;font-weight:700;letter-spacing:-.02em;}
.section-sub{margin-top:14px;color:var(--ink-600);font-size:16px;line-height:1.75;}

/* ---------- 分类页头 ---------- */
.page-banner{position:relative;padding-bottom:0;}
.banner-media{
  height:360px;
  background-image:linear-gradient(120deg,rgba(23,19,43,.72),rgba(75,43,215,.42)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  position:relative;
  overflow:hidden;
}
.banner-media::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:24px 24px;
}
.banner-card{
  position:relative;
  margin-top:-84px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--e2);
  padding:40px 44px 36px;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;line-height:32px;color:var(--ink-400);
  margin-bottom:18px;
}
.breadcrumb a{color:var(--ink-400);}
.breadcrumb a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:var(--line-strong);}
.breadcrumb .current{color:var(--ink-900);font-weight:600;}
.page-banner h1{
  font-size:44px;line-height:1.22;font-weight:800;letter-spacing:-.02em;
  max-width:880px;
}
.banner-lead{
  margin-top:18px;font-size:17px;line-height:1.75;color:var(--ink-600);
  max-width:640px;
}
.banner-meta{
  margin-top:26px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:16px 40px;align-items:center;
}
.banner-meta .meta-item{display:flex;align-items:baseline;gap:10px;}
.banner-meta .meta-num{font-size:26px;font-weight:800;color:var(--primary);letter-spacing:-.01em;}
.banner-meta .meta-label{font-size:13px;color:var(--ink-400);}

/* ---------- 双栏布局 ---------- */
.split-layout{
  display:grid;
  grid-template-columns:minmax(0,8fr) minmax(0,4fr);
  gap:48px;
  align-items:start;
}
.prose-block{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:40px 44px;
  box-shadow:var(--e1);
}
.prose-block + .prose-block{margin-top:24px;}
.prose-block h2{
  font-size:26px;line-height:1.4;font-weight:700;letter-spacing:-.015em;
  padding-left:14px;border-left:4px solid var(--primary);
  margin-bottom:20px;
}
.prose-block h3{
  font-size:20px;line-height:1.5;font-weight:600;
  margin-top:32px;margin-bottom:12px;
}
.prose-block h3:first-of-type{margin-top:0;}
.prose-block p{font-size:16px;line-height:1.8;color:var(--ink-600);margin-bottom:20px;max-width:38em;}
.prose-block p:last-child{margin-bottom:0;}
.dot-list{display:flex;flex-direction:column;gap:12px;margin:4px 0 24px;}
.dot-list li{
  position:relative;padding-left:22px;
  font-size:15.5px;line-height:1.75;color:var(--ink-600);
}
.dot-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:2px;background:var(--primary);
}
.quote-box{
  background:var(--primary-050);
  border-left:3px solid var(--primary);
  border-radius:0 var(--r-md) var(--r-md) 0;
  padding:20px 24px;
  font-size:15.5px;line-height:1.8;color:var(--ink-900);
  margin:28px 0 0;
}
.mini-stat-row{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  margin:28px 0 0;
}
.mini-stat{background:var(--surface);padding:20px 18px;}
.mini-stat .num{font-size:24px;font-weight:800;color:var(--primary);display:block;line-height:1.3;}
.mini-stat .label{font-size:13px;color:var(--ink-400);}

.side-card{
  position:sticky;top:96px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:28px 26px;
  box-shadow:var(--e1);
}
.side-card + .side-card{margin-top:20px;}
.side-card h3{font-size:17px;font-weight:700;margin-bottom:16px;}
.side-list{display:flex;flex-direction:column;gap:14px;margin-bottom:22px;}
.side-list li{
  display:flex;gap:10px;font-size:14.5px;line-height:1.7;color:var(--ink-600);
}
.side-list li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-top:9px;
  border-radius:50%;background:var(--accent);
}
.side-highlight{
  background:var(--primary-050);
  border-radius:var(--r-xs);
  padding:16px 18px;
  margin-bottom:20px;
}
.side-highlight strong{display:block;font-size:22px;font-weight:800;color:var(--primary);}
.side-highlight span{font-size:13px;color:var(--ink-600);}

/* ---------- 图文卡 2×2 ---------- */
.card-grid-2x2{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.media-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--e1);
  transition:transform .25s ease,box-shadow .25s ease;
  display:flex;flex-direction:column;
}
.media-card:hover{transform:translateY(-4px);box-shadow:var(--e3);}
.media-card .thumb{
  aspect-ratio:4/3;width:100%;object-fit:cover;background:var(--primary-050);
}
.media-card .card-body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1 1 auto;}
.media-card h3{font-size:19px;line-height:1.5;font-weight:600;margin-bottom:10px;}
.media-card p{font-size:15px;line-height:1.75;color:var(--ink-600);margin-bottom:18px;flex:1 1 auto;}
.media-card .card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.media-card .card-foot time{font-size:13px;color:var(--ink-400);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:border-color .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.faq-item.is-open{border-left:3px solid var(--primary);background:var(--primary-050);box-shadow:var(--e2);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 26px;text-align:left;
  font-size:16.5px;font-weight:600;line-height:1.6;
}
.faq-q .arrow{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line-strong);
  display:grid;place-items:center;
  transition:transform .2s ease,background-color .2s ease,border-color .2s ease;
  font-size:12px;color:var(--ink-600);
}
.faq-item.is-open .faq-q .arrow{
  transform:rotate(180deg);background:var(--primary);border-color:var(--primary);color:#fff;
}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .25s ease;
}
.faq-a-inner{
  padding:0 26px 24px;font-size:15.5px;line-height:1.8;color:var(--ink-600);
  border-top:1px solid var(--line);margin:0 0;padding-top:18px;
}

/* ---------- 底部 CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  background:var(--ink-section);
  border-radius:var(--r-lg);
  padding:52px 56px;
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,420px);
  gap:48px;align-items:center;
  color:#fff;
}
.cta-panel::before{
  content:"";position:absolute;top:-40px;right:-40px;width:280px;height:120px;
  background:repeating-linear-gradient(8deg,rgba(255,122,47,.55) 0 6px,transparent 6px 16px);
  pointer-events:none;
}
.cta-panel h2{font-size:28px;line-height:1.4;font-weight:700;letter-spacing:-.015em;}
.cta-panel p{margin-top:14px;font-size:15.5px;line-height:1.8;color:rgba(255,255,255,.72);max-width:34em;}
.cta-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.cta-tags span{
  padding:6px 14px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;
  background:rgba(255,255,255,.10);color:rgba(255,255,255,.86);
}
.cta-form{
  position:relative;z-index:2;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-md);
  padding:28px 26px;
}
.field{margin-bottom:18px;}
.field:last-of-type{margin-bottom:22px;}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:8px;color:rgba(255,255,255,.86);}
.field input{
  width:100%;padding:13px 16px;border-radius:12px;
  background:#fff;color:var(--ink-900);
  border:1.5px solid transparent;
  font-size:15px;line-height:1.4;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:var(--ink-400);}
.field input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(75,43,215,.24);}
.field.has-error input{border-color:var(--danger);box-shadow:0 0 0 3px rgba(214,69,69,.18);}
.field .err{display:none;margin-top:7px;font-size:13px;color:#FFB4B4;}
.field.has-error .err{display:block;}
.form-note{margin-top:14px;font-size:12.5px;line-height:1.7;color:rgba(255,255,255,.56);}
.form-success{
  display:none;margin-top:16px;padding:12px 16px;border-radius:12px;
  background:rgba(18,200,160,.16);color:#8CF0D6;
  font-size:13.5px;line-height:1.6;
}
.form-success.is-visible{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:#131024;color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:88px;}
.site-footer .logo-text{color:#fff;}
.site-footer .logo-mark{background:var(--primary);}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.10);
}
.footer-brand p{margin-top:18px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.60);max-width:34em;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col li{font-size:14px;line-height:1.7;color:rgba(255,255,255,.62);}
.footer-col a{font-size:14px;color:rgba(255,255,255,.62);transition:color .2s ease;}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px 32px;justify-content:space-between;align-items:center;
  padding:24px 0 32px;font-size:13px;color:rgba(255,255,255,.48);
}

/* ---------- 移动端固定转化条 ---------- */
.fixed-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  display:none;
  align-items:center;justify-content:space-between;gap:14px;
  padding:12px 20px calc(12px + env(safe-area-inset-bottom));
  background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -8px 24px -16px rgba(18,19,26,.28);
  opacity:0;transform:translateY(12px);
  transition:opacity .25s ease,transform .25s ease;
  pointer-events:none;
}
.fixed-bar.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.fixed-bar .bar-text{font-size:13.5px;font-weight:600;color:var(--ink-900);}
.fixed-bar .bar-text small{display:block;font-size:12px;font-weight:400;color:var(--ink-400);}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 32px;}
  .page-banner h1{font-size:38px;}
  .section{padding:72px 0;}
}

@media (max-width:1023px){
  .seg-nav,.header-actions .ghost-link{display:none;}
  .menu-toggle{display:inline-flex;}
  .split-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .side-card{position:static;}
  .cta-panel{grid-template-columns:minmax(0,1fr);gap:32px;padding:40px 36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .banner-card{padding:32px 32px 30px;}
  .banner-media{height:300px;}
}

@media (max-width:767px){
  .container{padding:0 20px;}
  .header-inner{gap:12px;min-height:66px;}
  .logo-text{font-size:15.5px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:32px;}
  .section-title{font-size:24px;}
  .banner-media{height:220px;}
  .banner-card{margin-top:-56px;padding:24px 20px;}
  .page-banner h1{font-size:28px;line-height:1.3;}
  .banner-lead{font-size:15.5px;margin-top:14px;}
  .banner-meta{gap:14px 24px;padding-top:18px;margin-top:20px;}
  .banner-meta .meta-num{font-size:22px;}
  .prose-block{padding:26px 20px;}
  .prose-block h2{font-size:22px;}
  .prose-block h3{font-size:18px;margin-top:26px;}
  .mini-stat-row{grid-template-columns:minmax(0,1fr);}
  .card-grid-2x2{grid-template-columns:minmax(0,1fr);}
  .faq-q{font-size:15.5px;padding:18px 20px;}
  .faq-a-inner{padding:16px 20px 20px;}
  .cta-panel{padding:32px 22px;border-radius:var(--r-md);}
  .cta-panel h2{font-size:22px;}
  .cta-form{padding:22px 18px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .site-footer{padding-top:52px;margin-top:56px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .fixed-bar{display:flex;}
  body{padding-bottom:74px;}
}

@media (max-width:479px){
  .page-banner h1{font-size:24px;}
  .section-title{font-size:21px;}
  .btn{padding:12px 22px;font-size:14px;}
  .btn-sm{padding:10px 16px;font-size:13.5px;}
  .logo-text{font-size:14.5px;white-space:normal;line-height:1.25;max-width:150px;}
}

/* roulang page: category3 */
:root{
  --primary:#4B2BD7;
  --primary-700:#3A1FB0;
  --primary-050:#EDE9FF;
  --accent:#12C8A0;
  --highlight:#FF7A2F;
  --canvas:#F6F4F0;
  --surface:#FFFFFF;
  --ink-section:#17132B;
  --ink-900:#12131A;
  --ink-600:#4A4F5C;
  --ink-400:#8A8F9C;
  --line:rgba(18,19,26,.10);
  --error:#D64545;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --e1:0 1px 2px rgba(18,19,26,.06);
  --e2:0 8px 24px -12px rgba(75,43,215,.18);
  --e3:0 16px 40px -20px rgba(75,43,215,.28);
  --container:1280px;
  --font:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink-900);
  background-color:var(--canvas);
  background-image:
    linear-gradient(rgba(18,19,26,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(18,19,26,.035) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-700)}
button,input,textarea,select{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-.01em;font-weight:700;color:var(--ink-900)}
p{margin:0 0 20px}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 40px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-pill);border:1.5px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,filter .2s ease;
  text-decoration:none;white-space:nowrap;
}
.btn-primary{background:var(--highlight);color:#fff;box-shadow:var(--e2)}
.btn-primary:hover{filter:brightness(.92);transform:translateY(-1px);box-shadow:var(--e3);color:#fff}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--e1)}
.btn-secondary{background:transparent;border-color:var(--primary);color:var(--primary)}
.btn-secondary:hover{background:var(--primary-050);color:var(--primary-700)}
.btn-secondary:active{background:#DED6FF}
.btn-ghost{background:transparent;color:var(--primary);padding:14px 8px;border:0}
.btn-ghost .arrow{transition:transform .2s ease;display:inline-block}
.btn-ghost:hover{color:var(--primary-700)}
.btn-ghost:hover .arrow{transform:translateX(4px)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,240,.94);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header.is-scrolled{background:#fff;box-shadow:var(--e2)}
.header-inner{display:flex;align-items:center;gap:24px;min-height:74px}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
.logo-mark{
  width:36px;height:36px;border-radius:var(--r-sm);
  background:var(--primary);color:#fff;display:grid;place-items:center;
  font-weight:700;font-size:16px;letter-spacing:0;
}
.logo-text{font-size:17px;font-weight:800;color:var(--ink-900);letter-spacing:-.02em;white-space:nowrap}
.seg-nav{display:flex;align-items:center;gap:8px;margin-left:auto;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding:4px 0}
.seg-nav::-webkit-scrollbar{display:none}
.seg-chip{
  display:inline-block;padding:9px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;color:var(--ink-600);
  font-size:14px;font-weight:500;white-space:nowrap;text-decoration:none;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.seg-chip:hover{background:var(--primary-050);color:var(--primary-700);border-color:transparent}
.seg-chip.is-active{background:var(--primary);color:#fff;border-color:var(--primary);font-weight:600;box-shadow:var(--e2)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.ghost-link{font-size:14px;font-weight:600;color:var(--ink-600);white-space:nowrap}
.ghost-link:hover{color:var(--primary)}

/* ---------- 页头 ---------- */
.page-hero{padding:44px 0 0}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-400);margin-bottom:24px;flex-wrap:wrap}
.breadcrumb a{color:var(--ink-400)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{opacity:.55}
.breadcrumb .current{color:var(--ink-900)}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center}
.eyebrow{
  display:inline-block;padding:5px 13px;border-radius:var(--r-pill);
  background:var(--primary-050);color:var(--primary);font-size:12px;font-weight:600;
  letter-spacing:.04em;margin-bottom:18px;
}
.hero-title{font-size:44px;font-weight:800;letter-spacing:-.02em;line-height:1.22;margin-bottom:18px}
.hero-sub{font-size:18px;color:var(--ink-600);max-width:520px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.trust-row{list-style:none;display:flex;flex-wrap:wrap;gap:10px 22px}
.trust-item{position:relative;padding-left:16px;font-size:14px;color:var(--ink-600)}
.trust-item::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;
  background:var(--accent);
}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:20px;box-shadow:var(--e2);
}
.media-badge{
  position:absolute;left:-18px;bottom:22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);padding:12px 18px;box-shadow:var(--e2);display:flex;flex-direction:column;gap:2px;
}
.media-badge strong{font-size:22px;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums}
.media-badge span{font-size:12px;color:var(--ink-400)}
.stat-row{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border-top:1px solid var(--line);margin-top:56px;padding-top:26px;padding-bottom:8px;
}
.stat{padding:2px 24px;border-left:1px solid var(--line)}
.stat:first-child{border-left:0;padding-left:0}
.stat-num{display:block;font-size:30px;font-weight:800;color:var(--primary);letter-spacing:-.02em;font-variant-numeric:tabular-nums;line-height:1.2}
.stat-label{display:block;font-size:13px;color:var(--ink-400);margin-top:4px}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-muted{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:48px}
.section-head h2{font-size:30px;font-weight:700;margin-bottom:16px}
.lead{font-size:16px;color:var(--ink-600);margin:0}

/* ---------- 时间线 ---------- */
.timeline{list-style:none;position:relative}
.timeline::before{
  content:"";position:absolute;left:25px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,var(--primary),rgba(75,43,215,.10));
}
.tl-item{position:relative;padding-left:84px;padding-bottom:28px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:0;top:0;width:52px;height:52px;border-radius:50%;
  background:var(--primary);color:#fff;display:grid;place-items:center;
  font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 6px rgba(75,43,215,.10);
}
.tl-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:26px 30px;box-shadow:var(--e1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.tl-card::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:3px;
  background:var(--primary);opacity:0;transition:opacity .2s ease;
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--e3)}
.tl-card:hover::before{opacity:1}
.tl-card h3{font-size:22px;font-weight:600;margin-bottom:10px}
.tl-card p{color:var(--ink-600);font-size:15px;margin:0}
.tl-points{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tl-points li{
  font-size:13px;color:var(--primary-700);background:var(--primary-050);
  border-radius:var(--r-pill);padding:4px 12px;line-height:1.5;
}

/* ---------- 对比表格 ---------- */
.table-wrap{
  overflow-x:auto;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--e1);
}
table.compare{width:100%;min-width:680px;border-collapse:collapse;font-size:15px}
.compare caption{text-align:left;padding:20px 24px 4px;font-size:14px;color:var(--ink-400)}
.compare th{
  background:var(--primary);color:#fff;text-align:left;font-weight:600;
  padding:16px 22px;font-size:15px;
}
.compare th.col-hl{background:var(--primary-700)}
.compare td{
  padding:16px 22px;border-top:1px solid var(--line);color:var(--ink-600);vertical-align:top;
}
.compare td:first-child{color:var(--ink-900);font-weight:600}
.compare tbody tr:nth-child(even) td{background:rgba(237,233,255,.42)}
.compare td.col-hl{
  background:var(--primary-050);color:var(--ink-900);font-weight:600;
  border-left:2px solid var(--primary);
}
.compare th:first-child{border-radius:var(--r-md) 0 0 0}
.compare th:last-child{border-radius:0 var(--r-md) 0 0}

/* ---------- 卡片 ---------- */
.card-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--e1);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--e3);border-color:rgba(75,43,215,.22)}
.card-img img{width:100%;aspect-ratio:16/10;object-fit:cover}
.card-body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:19px;font-weight:600;margin-bottom:10px}
.card-body p{font-size:15px;color:var(--ink-600);margin-bottom:18px}
.card-link{
  margin-top:auto;font-size:14px;font-weight:600;color:var(--primary);
  text-decoration:underline;text-decoration-color:rgba(75,43,215,.35);
  text-underline-offset:4px;
}
.card-link:hover{color:var(--primary-700);text-decoration-color:var(--primary-700)}
.card-link .arrow{display:inline-block;transition:transform .2s ease;margin-left:2px}
.card-link:hover .arrow{transform:translateX(4px)}

/* ---------- FAQ ---------- */
.faq{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-side{position:sticky;top:104px}
.faq-side h2{font-size:30px;margin:16px 0 14px}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.faq-item.is-open{background:var(--primary-050);border-left:3px solid var(--primary);box-shadow:var(--e2)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:transparent;border:0;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink-900);text-align:left;line-height:1.6;
}
.faq-q:hover{color:var(--primary)}
.faq-icon{flex:0 0 auto;transition:transform .2s ease;color:var(--primary)}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease,padding .2s ease;padding:0 24px}
.faq-a p{margin:0;font-size:15px;color:var(--ink-600)}
.faq-item.is-open .faq-a{max-height:400px;padding:0 24px 22px}

/* ---------- 底部转化面板 ---------- */
.cta-section{padding:0 0 88px}
.cta-panel{
  position:relative;overflow:hidden;background:var(--ink-section);color:#fff;
  border-radius:var(--r-lg);padding:56px;
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;
}
.cta-panel::after{
  content:"";position:absolute;top:-30px;right:56px;width:150px;height:230px;
  background:repeating-linear-gradient(8deg,rgba(255,122,47,.85) 0 5px,transparent 5px 15px);
  opacity:.5;pointer-events:none;
}
.cta-copy{position:relative;z-index:1}
.cta-copy h2{color:#fff;font-size:30px;margin-bottom:16px}
.cta-copy p{color:rgba(255,255,255,.72);font-size:15px;max-width:420px}
.cta-list{list-style:none;display:flex;flex-direction:column;gap:12px;margin-top:8px}
.cta-list li{
  position:relative;padding-left:18px;font-size:14px;color:rgba(255,255,255,.78);
}
.cta-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;
  background:var(--accent);
}
.support-form{position:relative;z-index:1;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-md);padding:28px}
.form-row{margin-bottom:16px}
.form-row label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:rgba(255,255,255,.88)}
.form-row input{
  width:100%;padding:13px 16px;border-radius:12px;border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.96);color:var(--ink-900);font-size:15px;line-height:1.5;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-row input::placeholder{color:var(--ink-400)}
.form-row input:hover{border-color:rgba(255,255,255,.5)}
.form-row input:focus{outline:none;border-color:var(--highlight);box-shadow:0 0 0 2px rgba(255,122,47,.45)}
.form-row input:focus-visible{outline:2px solid #fff;outline-offset:2px}
.form-row.has-error input{border-color:var(--error);box-shadow:0 0 0 2px rgba(214,69,69,.3)}
.error-text{font-size:13px;color:#FF9A9A;margin:6px 0 0}
.form-msg{font-size:13px;color:rgba(255,255,255,.6);margin:12px 0 0;min-height:20px}
.form-msg.is-ok{color:#7BEBCF}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand p{font-size:14px;color:var(--ink-600);margin:16px 0 0;max-width:330px}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:14px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--ink-600)}
.footer-col a{color:var(--ink-600);text-decoration:none;transition:color .2s ease}
.footer-col a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:12px 24px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-400);
}
.footer-bottom p{margin:0}

/* ---------- 移动端固定转化条 ---------- */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;
  align-items:center;justify-content:space-between;gap:14px;
  padding:12px 20px calc(12px + env(safe-area-inset-bottom));
  background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -8px 24px -16px rgba(18,19,26,.35);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .25s ease,transform .25s ease;
}
.mobile-bar.is-visible{opacity:1;transform:none;pointer-events:auto}
.mobile-bar p{margin:0;font-size:13px;color:var(--ink-600)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .container{padding:0 32px}
  .section{padding:64px 0}
  .header-inner{flex-wrap:wrap;gap:12px 20px;padding:12px 0}
  .seg-nav{order:3;width:100%;margin-left:0;padding-bottom:4px}
  .header-actions{margin-left:auto}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-title{font-size:34px}
  .stat-row{grid-template-columns:repeat(2,1fr);gap:20px 0;margin-top:40px}
  .stat{border-left:0;padding:0}
  .stat:nth-child(even){padding-left:24px;border-left:1px solid var(--line)}
  .faq{grid-template-columns:1fr;gap:32px}
  .faq-side{position:static}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:40px}
  .card-row{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  body{padding-bottom:76px}
  .section{padding:48px 0}
  .hero-title{font-size:28px;line-height:1.3}
  .hero-sub{font-size:16px}
  .section-head h2,.faq-side h2,.cta-copy h2{font-size:24px}
  .page-hero{padding-top:28px}
  .hero-media img{aspect-ratio:16/10}
  .media-badge{left:12px;bottom:12px;padding:10px 14px}
  .media-badge strong{font-size:18px}
  .stat-num{font-size:24px}
  .timeline::before{left:18px}
  .tl-item{padding-left:56px}
  .tl-dot{width:38px;height:38px;font-size:13px;box-shadow:0 0 0 4px rgba(75,43,215,.12)}
  .tl-card{padding:20px 20px}
  .tl-card h3{font-size:19px}
  .card-row{grid-template-columns:1fr}
  .cta-section{padding-bottom:56px}
  .cta-panel{padding:28px 22px;border-radius:var(--r-md)}
  .cta-panel::after{right:12px;width:100px;opacity:.35}
  .support-form{padding:20px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .mobile-bar{display:flex}
  .header-actions .ghost-link{display:none}
}
@media (max-width:479px){
  .hero-title{font-size:25px}
  .btn{padding:12px 20px;font-size:14px}
  .btn-block-sm{width:100%}
  .hero-actions .btn{flex:1 1 100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}