/* roulang page: index */
:root{
  --bg:#f4f8fd;
  --surface:#ffffff;
  --ink:#0f1f33;
  --ink-2:#33465e;
  --muted:#64748b;
  --brand:#1d4ed8;
  --brand-dark:#1a3fae;
  --brand-soft:#e8efff;
  --accent:#0ea5e9;
  --line:#e3eaf4;
  --line-strong:#cfdcef;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(15,31,51,.05), 0 4px 14px rgba(15,31,51,.05);
  --shadow-md:0 10px 28px rgba(15,31,51,.09);
  --shadow-lg:0 20px 50px rgba(15,31,51,.14);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{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;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border-radius:var(--radius-sm)}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:3px solid rgba(47,106,224,.45);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(15,31,51,.08)}
.nav-bar{
  display:flex;align-items:center;gap:26px;
  height:64px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(140deg,#2f6ae0,#1a3fae);
  color:#fff;font-weight:700;font-size:17px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px rgba(29,78,216,.28);
}
.brand-text{font-size:16.5px;font-weight:700;letter-spacing:.2px;color:var(--ink);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;
  padding:8px 14px;border-radius:9px;
  font-size:14.5px;font-weight:500;color:var(--ink-2);
  transition:color .2s ease,background-color .2s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link.is-active{color:var(--brand);font-weight:700;background:var(--brand-soft)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-2);border-radius:2px;transition:.2s}
.step-track{
  display:flex;gap:10px;padding:0 0 11px;
  overflow-x:auto;scrollbar-width:none;
}
.step-track::-webkit-scrollbar{display:none}
.step{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:500;color:var(--ink-2);
  background:#fff;border:1px solid var(--line);
  padding:5px 14px 5px 6px;border-radius:999px;
  transition:.2s ease;white-space:nowrap;
}
.step b{
  width:22px;height:22px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;
}
.step:hover{border-color:var(--line-strong);box-shadow:var(--shadow-sm);color:var(--brand);transform:translateY(-1px)}
.step:hover b{background:var(--brand);color:#fff}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:9px;
  font-size:15px;font-weight:600;line-height:1.2;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease;
  border:1px solid transparent;
}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:8px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(29,78,216,.24)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 26px rgba(29,78,216,.32)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--ink-2);border-color:var(--line-strong)}
.btn-ghost:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-soft);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--brand-dark)}
.btn-light:hover{background:#eef4ff;transform:translateY(-2px)}

/* ---------- generic ---------- */
.tag{
  display:inline-flex;align-items:center;
  padding:5px 13px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);
  font-size:13px;font-weight:600;
}
.tag-line{border:1px solid var(--line-strong);background:#fff;color:var(--ink-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.4px;
  color:var(--brand);background:var(--brand-soft);
  padding:6px 14px;border-radius:999px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}
section{position:relative}
.section{padding:76px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:38px}
.section-head h2{
  font-size:clamp(23px,2.6vw,31px);font-weight:800;letter-spacing:-.2px;
  line-height:1.35;color:var(--ink);
}
.section-head h2::after{
  content:"";display:block;width:52px;height:4px;border-radius:4px;
  background:linear-gradient(90deg,#2f6ae0,#8ab0f5);margin-top:16px;
}
.section-head p{margin-top:16px;color:var(--ink-2);font-size:15.5px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}

/* ---------- hero ---------- */
.hero{
  padding:64px 0 68px;
  background:
    linear-gradient(115deg,rgba(244,248,253,.96) 0%,rgba(244,248,253,.9) 46%,rgba(232,239,255,.86) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:1.32fr .9fr;gap:52px;align-items:start}
.hero-copy h1{
  margin-top:20px;
  font-size:clamp(30px,4vw,44px);
  font-weight:800;line-height:1.24;letter-spacing:-.6px;
}
.hero-copy h1 em{font-style:normal;color:var(--brand);}
.hero-lead{margin-top:22px;font-size:16px;color:var(--ink-2);line-height:1.85;max-width:620px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-feature{overflow:hidden;padding:0}
.hero-feature:hover{transform:translateY(-4px)}
.feature-media{position:relative;aspect-ratio:16/10;overflow:hidden;border-radius:0}
.feature-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease}
.hero-feature:hover .feature-media img{transform:scale(1.04)}
.badge{
  position:absolute;top:14px;left:14px;
  background:rgba(255,255,255,.94);color:var(--brand-dark);
  font-size:12.5px;font-weight:700;padding:5px 12px;border-radius:999px;
  box-shadow:0 4px 12px rgba(15,31,51,.14);
}
.feature-body{padding:24px 26px 28px}
.feature-body h2{font-size:20px;font-weight:700;line-height:1.4}
.feature-body p{margin-top:10px;font-size:14.5px;color:var(--ink-2)}
.mini-list{margin-top:16px;display:grid;gap:9px}
.mini-list li{
  display:flex;gap:9px;align-items:flex-start;
  font-size:13.5px;color:var(--ink-2);
}
.mini-list li::before{
  content:"";width:6px;height:6px;margin-top:9px;flex-shrink:0;
  border-radius:50%;background:var(--brand);
}

/* ---------- stat bar ---------- */
.stat-bar{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-md);
  display:grid;grid-template-columns:repeat(4,1fr);
  margin-top:-38px;position:relative;z-index:5;overflow:hidden;
}
.stat-item{padding:24px 26px;border-right:1px solid var(--line)}
.stat-item:last-child{border-right:0}
.stat-num{font-size:27px;font-weight:800;color:var(--brand);letter-spacing:-.5px}
.stat-num span{font-size:15px;font-weight:700;margin-left:2px;color:var(--ink-2)}
.stat-label{margin-top:4px;font-size:13.5px;color:var(--muted)}

/* ---------- cards ---------- */
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.card-media{aspect-ratio:16/10;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;background:#eef4ff}
.card-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease}
.card:hover .card-media img{transform:scale(1.05)}
.card-body{padding:22px 22px 24px}
.card-body h3{font-size:17px;font-weight:700;line-height:1.45;color:var(--ink)}
.card-body p{margin-top:9px;font-size:14px;color:var(--ink-2);line-height:1.75}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.card-tag{font-size:12px;font-weight:600;color:var(--brand-dark);background:var(--brand-soft);padding:4px 10px;border-radius:999px}

/* ---------- channel ---------- */
.channel-card{
  display:block;padding:28px 26px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#b9cdf0}
.channel-icon{
  width:44px;height:44px;border-radius:12px;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:16px;
}
.channel-card h3{font-size:17.5px;font-weight:700}
.channel-card p{margin-top:8px;font-size:14px;color:var(--ink-2)}
.channel-more{
  margin-top:16px;font-size:13.5px;font-weight:700;color:var(--brand);
  display:inline-flex;align-items:center;gap:6px;
}
.channel-card:hover .channel-more{gap:10px}

/* ---------- spot index ---------- */
.spot-list{display:grid;gap:12px}
.spot-item{
  display:grid;grid-template-columns:56px 1.3fr 1fr .9fr;
  align-items:center;gap:18px;
  padding:18px 22px;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius-sm);
  transition:.2s ease;
}
.spot-item:hover{border-color:#b9cdf0;box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.spot-no{font-size:16px;font-weight:800;color:var(--brand);letter-spacing:.5px}
.spot-name{font-size:15.5px;font-weight:700}
.spot-coord{font-size:13.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.spot-window{font-size:13.5px;font-weight:600;color:var(--ink-2);justify-self:start;background:var(--brand-soft);padding:4px 12px;border-radius:999px}

/* ---------- team ---------- */
.team-scroll{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.team-card{
  padding:24px 22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:.2s ease;
}
.team-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.avatar{
  width:46px;height:46px;border-radius:50%;
  background:linear-gradient(140deg,#2f6ae0,#1a3fae);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:16px;margin-bottom:14px;
}
.team-card h3{font-size:16px;font-weight:700}
.team-role{font-size:12.5px;font-weight:600;color:var(--brand);margin-top:3px}
.team-card p{margin-top:12px;font-size:13.8px;color:var(--ink-2)}

/* ---------- proof ---------- */
.proof-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:36px;align-items:center}
.proof-quote{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 28px;box-shadow:var(--shadow-sm);transition:.2s ease;
}
.proof-quote:hover{box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.proof-quote p{font-size:15px;color:var(--ink-2);line-height:1.85}
.proof-who{display:flex;align-items:center;gap:12px;margin-top:18px}
.proof-who span{font-size:13.5px;color:var(--muted)}
.proof-who strong{font-size:14px;color:var(--ink)}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:28px;border-left:2px solid var(--line);display:grid;gap:24px}
.timeline li{position:relative}
.timeline li::before{
  content:"";position:absolute;left:-37px;top:8px;
  width:12px;height:12px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 0 4px var(--brand-soft);
}
.timeline h3{font-size:15.5px;font-weight:700}
.timeline p{margin-top:5px;font-size:14px;color:var(--ink-2)}

/* ---------- preview ---------- */
.preview-wrap{
  display:grid;grid-template-columns:1fr 1fr;gap:0;
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  background:#fff;box-shadow:var(--shadow-md);
}
.preview-media{position:relative;min-height:340px}
.preview-media img{width:100%;height:100%;object-fit:cover;border-radius:0}
.preview-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(19,43,109,.08),rgba(19,43,109,.62));
}
.preview-media-text{
  position:absolute;left:26px;right:26px;bottom:24px;z-index:2;color:#fff;
}
.preview-media-text strong{display:block;font-size:19px;font-weight:700}
.preview-media-text span{font-size:13.5px;opacity:.86}
.preview-body{padding:34px 34px 36px}
.preview-body h2{font-size:23px;font-weight:800;line-height:1.4}
.preview-body p{margin-top:12px;font-size:14.8px;color:var(--ink-2)}
.check-list{margin-top:20px;display:grid;gap:12px}
.check-list li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2)}
.check-list li::before{
  content:"";flex-shrink:0;width:16px;height:16px;margin-top:6px;border-radius:5px;
  background:var(--brand-soft);border:1px solid #c8d9f7;
}

/* ---------- compare table ---------- */
.compare-table{
  width:100%;border-collapse:separate;border-spacing:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-sm);
}
.compare-table th,.compare-table td{
  padding:16px 20px;text-align:left;font-size:14.5px;
  border-bottom:1px solid var(--line);
}
.compare-table thead th{
  background:#f2f7ff;font-size:13.5px;font-weight:700;color:var(--ink-2);
  letter-spacing:.3px;
}
.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td{border-bottom:0}
.compare-table tbody th{font-weight:600;color:var(--ink);width:26%}
.compare-table td{color:var(--ink-2)}
.compare-table td.good{color:var(--brand-dark);font-weight:600}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:34px;align-items:start}
.news-list{display:grid;gap:16px}
.news-item{
  display:grid;grid-template-columns:168px 1fr;gap:20px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:16px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.news-thumb{aspect-ratio:16/11;overflow:hidden;border-radius:var(--radius-sm);background:#eef4ff}
.news-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease}
.news-item:hover .news-thumb img{transform:scale(1.05)}
.news-body h3{font-size:16px;font-weight:700;line-height:1.5}
.news-item:hover .news-body h3{color:var(--brand)}
.news-body p{margin-top:7px;font-size:13.8px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:12px;display:flex;flex-wrap:wrap;gap:10px;font-size:12.5px;color:var(--muted)}
.news-meta em{font-style:normal;color:var(--brand-dark);background:var(--brand-soft);padding:2px 9px;border-radius:999px;font-weight:600}
.side-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow-sm);
}
.side-panel h3{font-size:16px;font-weight:700;padding-bottom:14px;border-bottom:1px solid var(--line)}
.side-list{margin-top:6px;display:grid}
.side-list li{border-bottom:1px dashed var(--line);padding:13px 0}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list a{font-size:14px;color:var(--ink-2);line-height:1.6;display:block;transition:color .2s}
.side-list a:hover{color:var(--brand)}
.side-list span{display:block;font-size:12px;color:var(--muted);margin-top:4px}
.cms-empty{
  padding:36px 24px;text-align:center;color:var(--muted);font-size:14.5px;
  background:#fff;border:1px dashed var(--line-strong);border-radius:var(--radius);
}

/* ---------- reviews ---------- */
.review-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 24px 26px;box-shadow:var(--shadow-sm);transition:.2s ease;
}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.review-card p{font-size:14.5px;color:var(--ink-2);line-height:1.82}
.review-user{display:flex;align-items:center;gap:11px;margin-top:18px}
.review-user i{
  width:36px;height:36px;border-radius:50%;background:var(--brand-soft);
  color:var(--brand-dark);font-style:normal;font-weight:700;font-size:14px;
  display:flex;align-items:center;justify-content:center;
}
.review-user strong{display:block;font-size:13.8px}
.review-user span{font-size:12.5px;color:var(--muted)}

/* ---------- guard strip ---------- */
.guard-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-sm);
}
.guard-item{padding:24px 22px;border-right:1px solid var(--line)}
.guard-item:last-child{border-right:0}
.guard-item h3{font-size:14.8px;font-weight:700;margin-top:12px}
.guard-item p{margin-top:6px;font-size:13.2px;color:var(--muted);line-height:1.7}

/* ---------- final cta ---------- */
.final-cta{
  margin:0 auto;max-width:var(--container);
  background:linear-gradient(125deg,#16357f 0%,#1d4ed8 62%,#2f6ae0 100%);
  border-radius:20px;padding:56px 52px;
  display:grid;grid-template-columns:1.2fr .8fr;gap:38px;align-items:center;
  color:#fff;box-shadow:var(--shadow-lg);
}
.final-cta h2{font-size:clamp(24px,2.8vw,32px);font-weight:800;line-height:1.36}
.final-cta p{margin-top:14px;font-size:15px;color:rgba(255,255,255,.86);max-width:560px}
.final-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.final-side{display:grid;gap:14px}
.final-fact{
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  border-radius:12px;padding:16px 18px;
}
.final-fact strong{font-size:20px;font-weight:800}
.final-fact span{display:block;font-size:13px;color:rgba(255,255,255,.8);margin-top:2px}

/* ---------- footer ---------- */
.site-footer{background:#0d1c31;color:#b8c6da;margin-top:80px}
.footer-top{
  display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;
  padding:42px 0 30px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand{display:flex;align-items:center;gap:12px}
.footer-brand .brand-text{color:#fff}
.footer-brand p{font-size:13.5px;color:#8fa3bd;margin-top:2px}
.footer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:36px;padding:38px 0 44px}
.footer-col h3{font-size:14.5px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.4px}
.footer-col ul{display:grid;gap:10px}
.footer-col a,.footer-col li{font-size:13.8px;color:#9db0c9;transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 30px;font-size:13px;color:#7d90aa;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
}

/* ---------- sticky bar ---------- */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(13,28,49,.96);color:#fff;
  backdrop-filter:blur(10px);
  padding:11px 0 calc(11px + env(safe-area-inset-bottom,0px));
  transform:translateY(120%);transition:transform .3s ease;
  box-shadow:0 -8px 24px rgba(13,28,49,.28);
}
.sticky-cta.is-visible{transform:translateY(0)}
.sticky-inner{display:flex;align-items:center;gap:18px;justify-content:space-between}
.sticky-inner p{font-size:13.8px;color:#c7d5e6}
.sticky-inner p strong{color:#fff}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .stat-bar{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(2){border-right:0}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .team-scroll{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:1fr}
  .proof-grid{grid-template-columns:1fr}
  .preview-wrap{grid-template-columns:1fr}
  .preview-media{min-height:260px}
  .guard-strip{grid-template-columns:repeat(2,1fr)}
  .guard-item:nth-child(2){border-right:0}
  .guard-item:nth-child(1),.guard-item:nth-child(2){border-bottom:1px solid var(--line)}
  .final-cta{grid-template-columns:1fr;padding:42px 32px}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .spot-item{grid-template-columns:44px 1fr;row-gap:8px}
  .spot-window{grid-column:2}
}
@media (max-width:768px){
  .nav-links{
    display:none;position:absolute;left:0;right:0;top:64px;
    background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:0;
    padding:10px 18px 18px;box-shadow:0 16px 30px rgba(15,31,51,.1);
  }
  .nav-links.is-open{display:flex}
  .nav-link{padding:12px 12px;border-radius:8px}
  .nav-toggle{display:flex}
  .nav-bar{gap:12px}
  .nav-actions{margin-left:auto}
  .nav-actions .btn{display:none}
  .brand-text{font-size:15px}
  .section{padding:54px 0}
  .hero{padding:42px 0 48px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .team-scroll{grid-template-columns:1fr}
  .news-item{grid-template-columns:1fr}
  .news-thumb{aspect-ratio:16/8}
  .final-cta{border-radius:16px;padding:34px 22px}
  .compare-table th,.compare-table td{padding:12px 14px;font-size:13.5px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-top{flex-direction:column;align-items:flex-start}
  .sticky-inner{flex-direction:column;align-items:flex-start;gap:10px}
  .sticky-inner .btn{width:100%}
  body{padding-bottom:86px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .stat-bar{grid-template-columns:1fr}
  .stat-item{border-right:0;border-bottom:1px solid var(--line)}
  .stat-item:last-child{border-bottom:0}
  .guard-strip{grid-template-columns:1fr}
  .guard-item{border-right:0;border-bottom:1px solid var(--line)}
  .hero-btns .btn{width:100%}
  .spot-item{grid-template-columns:1fr}
  .spot-window{grid-column:auto}
  .hero-copy h1{font-size:27px}
}

/* roulang page: article */
:root{
  --bg:#f4f8fd;
  --surface:#ffffff;
  --ink:#0f1f33;
  --ink-2:#33465e;
  --muted:#64748b;
  --brand:#1d4ed8;
  --brand-dark:#1a3fae;
  --brand-soft:#e8efff;
  --accent:#0ea5e9;
  --line:#e3eaf4;
  --line-strong:#cfdcef;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(15,31,51,.05), 0 4px 14px rgba(15,31,51,.05);
  --shadow-md:0 10px 28px rgba(15,31,51,.09);
  --shadow-lg:0 20px 50px rgba(15,31,51,.14);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:118px}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border-radius:var(--radius-sm)}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:8px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(15,31,51,.08)}
.nav-bar{display:flex;align-items:center;gap:26px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(140deg,#2f6ae0,#1a3fae);
  color:#fff;font-weight:700;font-size:17px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px rgba(29,78,216,.28);
}
.brand-text{font-size:16.5px;font-weight:700;letter-spacing:.2px;color:var(--ink);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:8px 14px;border-radius:9px;
  font-size:14.5px;font-weight:500;color:var(--ink-2);
  transition:color .2s ease,background-color .2s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link.is-active{color:var(--brand);font-weight:700;background:var(--brand-soft)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-2);border-radius:2px;transition:.2s}
.step-track{display:flex;gap:8px;padding:0 0 10px;overflow-x:auto;scrollbar-width:none}
.step-track::-webkit-scrollbar{display:none}
.step{
  display:inline-flex;align-items:center;gap:8px;flex-shrink:0;
  padding:6px 13px;border-radius:999px;
  font-size:12.8px;font-weight:600;color:var(--ink-2);
  border:1px solid var(--line);background:#fff;
  transition:border-color .2s ease,color .2s ease,background-color .2s ease,transform .2s ease;
}
.step b{
  width:18px;height:18px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand-dark);font-size:11px;font-weight:700;
}
.step:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);transform:translateY(-1px)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:9px;
  font-size:15px;font-weight:600;line-height:1.2;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease;
  border:1px solid transparent;
}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:8px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(29,78,216,.24)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 26px rgba(29,78,216,.32)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--ink-2);border-color:var(--line-strong)}
.btn-ghost:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-soft);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--brand-dark)}
.btn-light:hover{background:#eef4ff;transform:translateY(-2px)}

/* ---------- generic ---------- */
.tag{
  display:inline-flex;align-items:center;padding:5px 13px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);font-size:13px;font-weight:600;
}
.tag-line{border:1px solid var(--line-strong);background:#fff;color:var(--ink-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.4px;
  color:var(--brand);background:var(--brand-soft);
  padding:6px 14px;border-radius:999px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}
.section{padding:72px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:34px}
.section-head h2{
  font-size:clamp(23px,2.6vw,31px);font-weight:800;letter-spacing:-.2px;
  line-height:1.35;color:var(--ink);margin:0;
}
.section-head h2::after{
  content:"";display:block;width:52px;height:4px;border-radius:4px;
  background:linear-gradient(90deg,#2f6ae0,#8ab0f5);margin-top:16px;
}
.section-head p{margin:16px 0 0;color:var(--ink-2);font-size:15.5px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  overflow:hidden;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.card-body{padding:22px 24px 24px}
.card-body h3{font-size:16.5px;font-weight:700;margin:0 0 8px;line-height:1.5}
.card-body p{font-size:14.5px;color:var(--ink-2);margin:0;line-height:1.75}
.card-media{aspect-ratio:16/10;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease}
.card:hover .card-media img{transform:scale(1.04)}

/* ---------- article hero ---------- */
.article-hero{
  padding:40px 0 58px;
  background:
    linear-gradient(115deg,rgba(244,248,253,.97) 0%,rgba(244,248,253,.92) 48%,rgba(232,239,255,.88) 100%),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13.5px;color:var(--muted)}
.breadcrumb a{color:var(--brand);font-weight:600}
.breadcrumb a:hover{text-decoration:underline}
.breadcrumb .sep{color:var(--line-strong)}
.article-hero-grid{display:grid;grid-template-columns:1.35fr .85fr;gap:44px;align-items:start;margin-top:18px}
.article-hero h1{
  margin:16px 0 0;font-size:clamp(27px,3.4vw,40px);
  font-weight:800;line-height:1.28;letter-spacing:-.5px;
}
.article-meta{display:flex;flex-wrap:wrap;gap:18px;margin-top:18px;font-size:13.5px;color:var(--muted)}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;font-style:normal}
.hero-lead{margin-top:18px;font-size:15.5px;color:var(--ink-2);line-height:1.85;max-width:640px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.cover-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-md);overflow:hidden;
}
.cover-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.cover-body{padding:18px 20px 22px}
.cover-body h2{font-size:15px;font-weight:700;margin:0 0 10px}
.fact-list{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.fact-list li{display:flex;justify-content:space-between;gap:12px;font-size:13.5px;color:var(--ink-2);padding-bottom:9px;border-bottom:1px dashed var(--line)}
.fact-list li:last-child{border-bottom:0;padding-bottom:0}
.fact-list b{color:var(--brand-dark);font-weight:700;white-space:nowrap}

/* ---------- stat strip ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 22px 24px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.stat-card .k{font-size:12.5px;font-weight:600;color:var(--muted);letter-spacing:.3px}
.stat-card .v{font-size:22px;font-weight:800;color:var(--brand);margin-top:6px;letter-spacing:-.3px}
.stat-card p{font-size:13.5px;color:var(--ink-2);margin:8px 0 0;line-height:1.72}

/* ---------- article layout ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 322px;gap:34px;align-items:start}
.article-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);padding:34px 38px 40px;
}
.article-body{font-size:15.5px;color:var(--ink-2)}
.article-body>*:first-child{margin-top:0}
.article-body h2{
  position:relative;font-size:22px;font-weight:800;color:var(--ink);
  margin:34px 0 12px;padding-left:15px;line-height:1.45;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,#2f6ae0,#8ab0f5);
}
.article-body h3{font-size:17.5px;font-weight:700;color:var(--ink);margin:24px 0 10px;line-height:1.5}
.article-body h4{font-size:16px;font-weight:700;color:var(--ink);margin:20px 0 8px}
.article-body p{margin:0 0 14px;line-height:1.85}
.article-body ul,.article-body ol{margin:0 0 16px;padding-left:22px;line-height:1.85}
.article-body li{margin:6px 0}
.article-body strong,.article-body b{color:var(--ink);font-weight:700}
.article-body a{color:var(--brand);font-weight:600;border-bottom:1px solid rgba(29,78,216,.32)}
.article-body a:hover{color:var(--brand-dark);border-bottom-color:var(--brand-dark)}
.article-body img{margin:18px 0;border-radius:var(--radius-sm);box-shadow:var(--shadow-sm)}
.article-body blockquote{
  margin:18px 0;padding:14px 20px;border-left:4px solid var(--brand);
  background:var(--brand-soft);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14.5px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;line-height:1.7}
.article-body th{background:#f0f5fd;color:var(--ink);font-weight:700}
.article-body figure{margin:18px 0}
.article-body figcaption{font-size:13px;color:var(--muted);margin-top:8px;text-align:center}
.article-aside{position:sticky;top:118px;display:grid;gap:18px}
.aside-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm)}
.aside-card h2{font-size:15px;font-weight:700;margin:0 0 14px;color:var(--ink)}
.aside-list{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.aside-list a{
  display:flex;align-items:center;gap:10px;
  font-size:14px;color:var(--ink-2);padding:9px 11px;border-radius:9px;
  transition:background-color .2s ease,color .2s ease,transform .2s ease;
}
.aside-list a::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--line-strong);flex-shrink:0;transition:background-color .2s ease}
.aside-list a:hover{background:var(--brand-soft);color:var(--brand);transform:translateX(2px)}
.aside-list a:hover::before{background:var(--brand)}
.aside-note{font-size:13.5px;color:var(--ink-2);line-height:1.8;margin:0}
.empty-state{text-align:center;padding:28px 10px 16px}
.empty-state h2{font-size:22px;font-weight:800;margin:0 0 12px;color:var(--ink)}
.empty-state p{color:var(--ink-2);font-size:15px;margin:0 0 22px}

/* ---------- timeline ---------- */
.timeline{display:grid;gap:16px;border-left:2px solid var(--line-strong);padding-left:26px;margin-left:8px}
.tl-item{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 24px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tl-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.tl-item::before{
  content:"";position:absolute;left:-35px;top:24px;width:12px;height:12px;border-radius:50%;
  background:var(--brand);border:3px solid #fff;box-shadow:0 0 0 3px rgba(29,78,216,.16);
}
.tl-time{font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.2px}
.tl-item h3{font-size:16.5px;font-weight:700;margin:6px 0 8px}
.tl-item p{margin:0;font-size:14.5px;color:var(--ink-2)}

/* ---------- step grid ---------- */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.step-num{
  width:32px;height:32px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand-dark);font-weight:800;font-size:14px;margin-bottom:14px;
}
.step-card h3{font-size:16px;font-weight:700;margin:0 0 8px}
.step-card p{font-size:14px;color:var(--ink-2);margin:0;line-height:1.75}

/* ---------- compare ---------- */
.compare-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.compare-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 26px 28px;box-shadow:var(--shadow-sm)}
.compare-card h3{font-size:18px;font-weight:800;margin:0 0 4px}
.compare-card .sub{font-size:13.5px;color:var(--muted);margin:0 0 16px}
.compare-list{list-style:none;margin:0;padding:0;display:grid;gap:11px}
.compare-list li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);line-height:1.72}
.compare-list li b{font-weight:700;color:var(--ink);flex-shrink:0}
.compare-list .dot{width:8px;height:8px;border-radius:50%;margin-top:8px;flex-shrink:0;background:var(--accent)}
.compare-card.is-brand{border-color:rgba(29,78,216,.35);box-shadow:0 14px 34px rgba(29,78,216,.14)}
.compare-card.is-brand .dot{background:var(--brand)}

/* ---------- record list ---------- */
.record-list{display:grid;gap:14px}
.record-item{
  display:flex;gap:18px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 24px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.record-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.record-date{font-size:12.5px;font-weight:700;color:var(--brand);background:var(--brand-soft);border-radius:8px;padding:5px 12px;white-space:nowrap}
.record-item h3{font-size:15.5px;font-weight:700;margin:0 0 6px}
.record-item p{margin:0;font-size:14px;color:var(--ink-2)}

/* ---------- faq ---------- */
.faq{display:grid;gap:14px;max-width:920px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item summary{
  cursor:pointer;list-style:none;padding:18px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:15.5px;font-weight:700;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:20px;font-weight:700;color:var(--brand);line-height:1}
.faq-item[open] summary::after{content:"–"}
.faq-item[open]{border-color:var(--line-strong);box-shadow:var(--shadow-md)}
.faq-item p{margin:0;padding:0 22px 20px;font-size:14.5px;color:var(--ink-2);line-height:1.8}

/* ---------- guard + cta ---------- */
.guard-bar{
  display:flex;flex-wrap:wrap;gap:14px 26px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 24px;box-shadow:var(--shadow-sm);margin-bottom:26px;
}
.guard-bar span{display:inline-flex;align-items:center;gap:9px;font-size:14px;color:var(--ink-2)}
.guard-bar span::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent)}
.cta-band{
  background:
    linear-gradient(118deg,rgba(21,52,110,.97) 0%,rgba(29,78,216,.95) 58%,rgba(47,106,224,.94) 100%),
    url('/assets/images/backpic/back-5.webp') center/cover no-repeat;
  color:#fff;border-radius:20px;padding:42px 46px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:var(--shadow-lg);
}
.cta-band h2{font-size:clamp(21px,2.4vw,28px);font-weight:800;margin:0 0 10px;line-height:1.4}
.cta-band p{margin:0;font-size:15px;color:rgba(255,255,255,.86);max-width:600px;line-height:1.8}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-band .btn-light{color:var(--brand-dark)}
.cta-band .btn-outline{background:transparent;border:1px solid rgba(255,255,255,.62);color:#fff}
.cta-band .btn-outline:hover{background:rgba(255,255,255,.14);transform:translateY(-2px);border-color:#fff}

/* ---------- footer ---------- */
.site-footer{
  background:linear-gradient(160deg,#0f1f33,#142a49 60%,#16304f);
  color:#c3d2e6;padding:56px 0 26px;margin-top:0;
}
.footer-top{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding-bottom:26px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{display:flex;gap:12px;align-items:center}
.footer-brand .brand-text{color:#fff}
.footer-brand p{margin:4px 0 0;font-size:13.5px;color:#93a7c2;line-height:1.6}
.footer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;padding:34px 0}
.footer-col h3{font-size:14px;font-weight:700;color:#fff;margin:0 0 14px;letter-spacing:.3px}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.footer-col li{font-size:13.5px;color:#a9bcd6;line-height:1.7}
.footer-col a{color:#a9bcd6;transition:color .2s ease}
.footer-col a:hover{color:#fff}
.footer-bottom{
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:#8ca1bd;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .article-hero-grid{grid-template-columns:1fr;gap:30px}
  .article-layout{grid-template-columns:1fr}
  .article-aside{position:static;grid-template-columns:repeat(2,1fr);display:grid}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .step-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:900px){
  .nav-links{
    position:absolute;top:64px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:6px;
    background:#fff;border-bottom:1px solid var(--line);
    padding:14px 22px 18px;box-shadow:0 18px 34px rgba(15,31,51,.12);
    display:none;
  }
  .nav-links.is-open{display:flex}
  .nav-link{padding:11px 14px;font-size:15px}
  .nav-toggle{display:flex}
  .nav-actions .btn-sm{display:none}
  .section{padding:58px 0}
}
@media (max-width:768px){
  .article-panel{padding:26px 22px 30px}
  .article-aside{grid-template-columns:1fr}
  .compare-grid{grid-template-columns:1fr}
  .cta-band{padding:32px 26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .article-body h2{font-size:20px}
  .record-item{flex-direction:column;gap:10px}
}
@media (max-width:520px){
  .stat-strip{grid-template-columns:1fr}
  .step-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-btns .btn,.cta-actions .btn{width:100%}
  .article-hero{padding:28px 0 42px}
  .article-body{font-size:15px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .guard-bar{padding:16px 18px;gap:10px 18px}
  .footer-top{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
 --bg:#f4f8fd;
 --surface:#ffffff;
 --ink:#0f1f33;
 --ink-2:#33465e;
 --muted:#64748b;
 --brand:#1d4ed8;
 --brand-dark:#1a3fae;
 --brand-soft:#e8efff;
 --accent:#0ea5e9;
 --line:#e3eaf4;
 --line-strong:#cfdcef;
 --radius:14px;
 --radius-sm:10px;
 --shadow-sm:0 1px 2px rgba(15,31,51,.05), 0 4px 14px rgba(15,31,51,.05);
 --shadow-md:0 10px 28px rgba(15,31,51,.09);
 --shadow-lg:0 20px 50px rgba(15,31,51,.14);
 --container:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{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;
 background:var(--bg);
 color:var(--ink);
 font-size:16px;
 line-height:1.78;
 -webkit-font-smoothing:antialiased;
 text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,dl,dd,figure{margin:0}
ul{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;border-radius:var(--radius-sm)}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
:focus-visible{outline:3px solid rgba(29,78,216,.42);outline-offset:3px;border-radius:8px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px}

/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(255,255,255,.94);
 backdrop-filter:saturate(160%) blur(12px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(15,31,51,.08)}
.nav-bar{display:flex;align-items:center;gap:26px;height:64px;position:relative}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
 width:34px;height:34px;border-radius:10px;
 background:linear-gradient(140deg,#2f6ae0,#1a3fae);
 color:#fff;font-weight:700;font-size:17px;
 display:flex;align-items:center;justify-content:center;
 box-shadow:0 6px 14px rgba(29,78,216,.28);
}
.brand-text{font-size:16.5px;font-weight:700;letter-spacing:.2px;color:var(--ink);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
 position:relative;padding:8px 14px;border-radius:9px;
 font-size:14.5px;font-weight:500;color:var(--ink-2);
 transition:color .2s ease,background-color .2s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link.is-active{color:var(--brand);font-weight:700;background:var(--brand-soft)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:10px;
 border:1px solid var(--line);align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-2);border-radius:2px;transition:.2s}
.step-track{display:flex;gap:8px;padding:0 0 10px;overflow-x:auto;scrollbar-width:none}
.step-track::-webkit-scrollbar{display:none}
.step{
 display:inline-flex;align-items:center;gap:8px;padding:6px 14px 6px 6px;
 border-radius:999px;background:#f2f6fd;border:1px solid var(--line);
 font-size:13px;font-weight:600;color:var(--ink-2);white-space:nowrap;
 transition:background-color .2s ease,border-color .2s ease,color .2s ease;
}
.step b{
 width:22px;height:22px;border-radius:50%;background:#fff;color:var(--brand);
 display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;
 border:1px solid var(--line-strong);
}
.step:hover,.step:focus-visible{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-dark)}
.step:hover b{background:var(--brand);color:#fff;border-color:var(--brand)}

/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:12px 24px;border-radius:9px;font-size:15px;font-weight:600;line-height:1.2;
 border:1px solid transparent;
 transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease;
}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:8px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(29,78,216,.24)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 26px rgba(29,78,216,.32)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--ink-2);border-color:var(--line-strong)}
.btn-ghost:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-soft);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--brand-dark)}
.btn-light:hover{background:#eef4ff;transform:translateY(-2px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-2px)}

/* ---------- generic ---------- */
.tag{
 display:inline-flex;align-items:center;padding:5px 13px;border-radius:999px;
 background:var(--brand-soft);color:var(--brand-dark);font-size:13px;font-weight:600;
}
.tag-line{border:1px solid var(--line-strong);background:#fff;color:var(--ink-2)}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:13px;font-weight:600;letter-spacing:.4px;
 color:var(--brand);background:var(--brand-soft);
 padding:6px 14px;border-radius:999px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}
.section{padding:76px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:740px;margin-bottom:38px}
.section-head h2{
 font-size:clamp(23px,2.6vw,31px);font-weight:800;letter-spacing:-.2px;
 line-height:1.35;color:var(--ink);margin-top:14px;
}
.section-head h2::after{
 content:"";display:block;width:52px;height:4px;border-radius:4px;
 background:linear-gradient(90deg,#2f6ae0,#8ab0f5);margin-top:16px;
}
.section-head p{margin-top:16px;color:var(--ink-2);font-size:15.5px}

/* ---------- hero ---------- */
.page-hero{
 padding:52px 0 62px;
 background:
 linear-gradient(115deg,rgba(244,248,253,.96) 0%,rgba(244,248,253,.92) 48%,rgba(232,239,255,.88) 100%),
 url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
 border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb span.sep{color:var(--line-strong)}
.page-hero h1{
 margin-top:18px;
 font-size:clamp(28px,3.6vw,42px);
 font-weight:800;line-height:1.26;letter-spacing:-.6px;
}
.page-hero h1 em{font-style:normal;color:var(--brand)}
.hero-lead{margin-top:20px;font-size:16px;color:var(--ink-2);line-height:1.85;max-width:620px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}

.lookup-panel{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-md);overflow:hidden;
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.lookup-panel:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--line-strong)}
.lookup-head{
 display:flex;align-items:center;gap:8px;
 padding:13px 18px;border-bottom:1px solid var(--line);
 font-size:13.5px;font-weight:700;color:var(--ink-2);background:#f8fbff;
}
.lookup-dot{width:8px;height:8px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 3px rgba(34,197,94,.16)}
.lookup-media{position:relative;aspect-ratio:16/9;overflow:hidden}
.lookup-media img{width:100%;height:100%;object-fit:cover;border-radius:0}
.badge{
 position:absolute;top:12px;left:12px;
 background:rgba(255,255,255,.95);color:var(--brand-dark);
 font-size:12.5px;font-weight:700;padding:5px 12px;border-radius:999px;
 box-shadow:0 4px 12px rgba(15,31,51,.16);
}
.lookup-data{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line)}
.lookup-data > div{background:#fff;padding:14px 18px}
.lookup-data dt{font-size:12.5px;color:var(--muted);font-weight:600}
.lookup-data dd{font-size:15px;font-weight:700;color:var(--ink);margin-top:3px}
.lookup-note{padding:13px 18px;font-size:13px;color:var(--muted);border-top:1px solid var(--line);background:#f8fbff}

/* ---------- feature cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-sm);padding:26px;
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.icon-box{
 width:44px;height:44px;border-radius:12px;background:var(--brand-soft);
 display:flex;align-items:center;justify-content:center;color:var(--brand);
}
.icon-box svg{width:22px;height:22px}
.card h3{font-size:18px;font-weight:700;margin-top:18px;line-height:1.45}
.card p{font-size:14.5px;color:var(--ink-2);margin-top:10px}
.card .tag{margin-top:16px}

/* ---------- spot cards ---------- */
.spot-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 overflow:hidden;box-shadow:var(--shadow-sm);
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.spot-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.spot-media{aspect-ratio:16/10;overflow:hidden}
.spot-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease}
.spot-card:hover .spot-media img{transform:scale(1.05)}
.spot-body{padding:20px 22px 24px}
.spot-body h3{font-size:17px;font-weight:700}
.spot-body p{font-size:14px;color:var(--ink-2);margin-top:8px}
.coord{
 display:inline-flex;align-items:center;gap:6px;margin-top:14px;
 font-size:13px;font-weight:700;color:var(--brand-dark);
 background:var(--brand-soft);padding:5px 12px;border-radius:8px;
 font-variant-numeric:tabular-nums;
}
.spot-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.spot-meta .tag{font-size:12px;padding:4px 10px}

/* ---------- timeline ---------- */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;margin-top:8px}
.tl-item{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 22px;box-shadow:var(--shadow-sm);position:relative;
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.tl-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.tl-item::before{
 content:"";position:absolute;top:0;left:22px;right:22px;height:3px;border-radius:0 0 4px 4px;
 background:linear-gradient(90deg,#2f6ae0,#8ab0f5);
}
.tl-time{font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.3px}
.tl-item h3{font-size:16.5px;font-weight:700;margin-top:8px}
.tl-item p{font-size:14px;color:var(--ink-2);margin-top:8px}

/* ---------- preview ---------- */
.preview-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.preview-media{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-md);border:1px solid var(--line)}
.preview-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:0}
.preview-media .badge{top:16px;left:16px}
.steps{display:grid;gap:16px;margin-top:26px}
.step-item{display:flex;gap:16px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);padding:18px 20px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.step-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.step-num{
 flex:0 0 34px;width:34px;height:34px;border-radius:10px;
 background:var(--brand-soft);color:var(--brand-dark);
 display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;
}
.step-item h3{font-size:16px;font-weight:700}
.step-item p{font-size:14px;color:var(--ink-2);margin-top:5px}

/* ---------- proof ---------- */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:34px}
.stat{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 22px;box-shadow:var(--shadow-sm);text-align:left;
 transition:transform .2s ease,box-shadow .2s ease;
}
.stat:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.stat b{display:block;font-size:30px;font-weight:800;color:var(--brand);letter-spacing:-.5px;font-variant-numeric:tabular-nums}
.stat span{display:block;margin-top:6px;font-size:13.5px;color:var(--muted);font-weight:600}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.quote{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px;box-shadow:var(--shadow-sm);
}
.quote p{font-size:14.5px;color:var(--ink-2);line-height:1.8}
.quote footer{margin-top:16px;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.avatar{
 width:32px;height:32px;border-radius:50%;
 background:var(--brand-soft);color:var(--brand-dark);
 display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px;
}

/* ---------- compare ---------- */
.compare{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface);box-shadow:var(--shadow-sm)}
.compare-head{display:grid;grid-template-columns:1.1fr 1fr 1fr;background:#f2f6fd;border-bottom:1px solid var(--line)}
.compare-head > div{padding:16px 22px;font-size:14px;font-weight:700;color:var(--ink-2)}
.compare-head > div:last-child{color:var(--brand-dark)}
.compare-row{display:grid;grid-template-columns:1.1fr 1fr 1fr;border-bottom:1px solid var(--line)}
.compare-row:last-child{border-bottom:0}
.compare-row > div{padding:18px 22px;font-size:14.5px;color:var(--ink-2);display:flex;align-items:center;gap:8px}
.compare-row > div:first-child{font-weight:700;color:var(--ink)}
.compare-row > div:nth-child(2){color:var(--muted)}
.compare-row > div:last-child{color:var(--ink);background:#fbfdff}
.tick{width:18px;height:18px;flex:0 0 18px;color:#16a34a}
.cross{width:16px;height:16px;flex:0 0 16px;color:#94a3b8}

/* ---------- news list ---------- */
.news-list{display:grid;gap:14px}
.news-item{
 display:grid;grid-template-columns:130px 1fr auto;gap:20px;align-items:center;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);
 padding:18px 22px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.news-date{font-size:13px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}
.news-body strong{display:block;font-size:15.5px;font-weight:700;color:var(--ink);line-height:1.5}
.news-desc{display:block;margin-top:6px;font-size:13.5px;color:var(--muted);line-height:1.7}
.news-tag{
 font-size:12px;font-weight:600;color:var(--ink-2);background:#f2f6fd;
 border:1px solid var(--line);border-radius:999px;padding:4px 12px;white-space:nowrap;
}
.empty-note{
 background:var(--surface);border:1px dashed var(--line-strong);border-radius:var(--radius);
 padding:28px;text-align:center;color:var(--muted);font-size:14.5px;
}

/* ---------- faq ---------- */
.faq{display:grid;gap:12px;max-width:900px}
.faq details{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);
 padding:0;box-shadow:var(--shadow-sm);transition:border-color .2s ease,box-shadow .2s ease;
}
.faq details[open]{border-color:var(--line-strong);box-shadow:var(--shadow-md)}
.faq summary{
 list-style:none;cursor:pointer;padding:18px 52px 18px 22px;position:relative;
 font-size:15.5px;font-weight:700;color:var(--ink);line-height:1.6;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
 content:"";position:absolute;right:22px;top:50%;width:10px;height:10px;
 border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
 transform:translateY(-70%) rotate(45deg);transition:transform .25s ease;
}
.faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq .faq-body{padding:0 22px 20px;font-size:14.5px;color:var(--ink-2);line-height:1.8}

/* ---------- final cta ---------- */
.final-band{
 background:linear-gradient(120deg,#12306b,#1d4ed8 58%,#2f6ae0);
 color:#fff;border-radius:var(--radius);padding:44px 44px;
 display:grid;grid-template-columns:1.4fr auto;gap:32px;align-items:center;
 box-shadow:var(--shadow-lg);position:relative;overflow:hidden;
}
.final-band::before{
 content:"";position:absolute;right:-70px;top:-70px;width:260px;height:260px;border-radius:50%;
 background:rgba(255,255,255,.08);
}
.final-band h2{font-size:clamp(21px,2.4vw,27px);font-weight:800;line-height:1.4}
.final-band p{margin-top:12px;font-size:14.8px;color:rgba(255,255,255,.86);max-width:640px}
.final-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1}

/* ---------- sticky bar ---------- */
.sticky-cta{
 position:fixed;left:0;right:0;bottom:0;z-index:70;
 background:rgba(255,255,255,.96);
 border-top:1px solid var(--line);
 box-shadow:0 -8px 24px rgba(15,31,51,.10);
 backdrop-filter:blur(10px);
 padding:10px 0;
}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.sticky-text{font-size:14px;color:var(--ink-2);font-weight:600}
.sticky-text b{color:var(--brand-dark)}
.sticky-actions{display:flex;gap:10px}

/* ---------- footer ---------- */
.site-footer{background:#0d1c30;color:#c7d5e6;padding:56px 0 26px;margin-top:0}
.site-footer .brand-text{color:#fff}
.footer-top{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;padding-bottom:30px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand{display:flex;align-items:center;gap:12px}
.footer-brand p{font-size:13.5px;color:#8fa4bd;margin-top:2px}
.footer-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:36px;padding:36px 0 30px}
.footer-col h3{font-size:14.5px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-col ul{display:grid;gap:9px}
.footer-col li{font-size:13.5px;color:#8fa4bd}
.footer-col a{color:#a9bdd4;transition:color .2s ease}
.footer-col a:hover{color:#fff}
.footer-bottom{
 display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
 padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
 font-size:13px;color:#7f95ae;
}

/* ---------- responsive ---------- */
@media(max-width:1024px){
 .hero-grid{grid-template-columns:1fr;gap:34px}
 .grid-4{grid-template-columns:repeat(2,1fr)}
 .grid-3{grid-template-columns:repeat(2,1fr)}
 .timeline{grid-template-columns:repeat(2,1fr)}
 .stat-row{grid-template-columns:repeat(2,1fr)}
 .quote-grid{grid-template-columns:1fr}
 .preview-grid{grid-template-columns:1fr;gap:30px}
 .final-band{grid-template-columns:1fr;padding:36px 30px}
 .news-item{grid-template-columns:110px 1fr;grid-template-areas:"date body" "date tag";row-gap:8px}
 .news-tag{justify-self:start}
}
@media(max-width:960px){
 .nav-links{
  position:absolute;top:100%;left:0;right:0;
  flex-direction:column;align-items:stretch;gap:4px;
  background:#fff;border-bottom:1px solid var(--line);
  padding:10px 18px 16px;display:none;box-shadow:var(--shadow-md);
 }
 .nav-links.is-open{display:flex}
 .nav-link{padding:11px 14px}
 .nav-toggle{display:flex}
 .nav-actions{margin-left:auto}
}
@media(max-width:768px){
 .section{padding:54px 0}
 .page-hero{padding:38px 0 46px}
 .grid-3,.grid-2{grid-template-columns:1fr}
 .footer-grid{grid-template-columns:1fr;gap:26px}
 .compare-head,.compare-row{grid-template-columns:1fr}
 .compare-head > div:first-child{display:none}
 .compare-head > div{padding:12px 18px}
 .compare-head > div:nth-child(2)::before{content:"凭印象：";color:var(--muted)}
 .compare-row{border-bottom:1px solid var(--line)}
 .compare-row > div{padding:12px 18px}
 .compare-row > div:first-child{background:#f8fbff;font-size:14px}
 .compare-row > div:nth-child(2)::before{content:"以往做法 · ";color:var(--muted);font-weight:600}
 .compare-row > div:last-child::before{content:"现在 · ";color:var(--brand-dark);font-weight:700}
 .final-actions{width:100%}
 .final-actions .btn{flex:1 1 auto}
 .sticky-text{font-size:13px}
 .sticky-cta{padding:8px 0}
}
@media(max-width:520px){
 .container{padding:0 16px}
 .grid-4{grid-template-columns:1fr}
 .timeline{grid-template-columns:1fr}
 .stat-row{grid-template-columns:1fr}
 .lookup-data{grid-template-columns:1fr}
 .hero-btns .btn{width:100%}
 .news-item{grid-template-columns:1fr;grid-template-areas:"date" "body" "tag"}
 .card{padding:22px}
 .sticky-inner{flex-direction:column;align-items:stretch;gap:8px}
 .sticky-actions .btn{flex:1 1 auto}
 .footer-bottom{flex-direction:column}
}

/* roulang page: category3 */
:root{
 --bg:#f4f8fd;
 --surface:#ffffff;
 --ink:#0f1f33;
 --ink-2:#33465e;
 --muted:#64748b;
 --brand:#1d4ed8;
 --brand-dark:#1a3fae;
 --brand-soft:#e8efff;
 --accent:#0ea5e9;
 --line:#e3eaf4;
 --line-strong:#cfdcef;
 --radius:14px;
 --radius-sm:10px;
 --shadow-sm:0 1px 2px rgba(15,31,51,.05), 0 4px 14px rgba(15,31,51,.05);
 --shadow-md:0 10px 28px rgba(15,31,51,.09);
 --shadow-lg:0 20px 50px rgba(15,31,51,.14);
 --container:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{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;
 background:var(--bg);
 color:var(--ink);
 font-size:16px;
 line-height:1.78;
 -webkit-font-smoothing:antialiased;
 text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;border-radius:var(--radius-sm)}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none}
a:focus-visible,button:focus-visible,summary:focus-visible{
 outline:3px solid rgba(29,78,216,.35);outline-offset:3px;border-radius:8px;
}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px}

/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(255,255,255,.94);
 backdrop-filter:saturate(160%) blur(12px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(15,31,51,.08)}
.nav-bar{display:flex;align-items:center;gap:26px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
 width:34px;height:34px;border-radius:10px;
 background:linear-gradient(140deg,#2f6ae0,#1a3fae);
 color:#fff;font-weight:700;font-size:17px;
 display:flex;align-items:center;justify-content:center;
 box-shadow:0 6px 14px rgba(29,78,216,.28);
}
.brand-text{font-size:16.5px;font-weight:700;letter-spacing:.2px;color:var(--ink);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
 position:relative;padding:8px 14px;border-radius:9px;
 font-size:14.5px;font-weight:500;color:var(--ink-2);
 transition:color .2s ease,background-color .2s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link.is-active{color:var(--brand);font-weight:700;background:var(--brand-soft)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:10px;
 border:1px solid var(--line);align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-2);border-radius:2px;transition:.2s}
.step-track{
 display:flex;align-items:center;gap:8px;
 padding:0 0 10px;overflow-x:auto;scrollbar-width:none;
}
.step-track::-webkit-scrollbar{display:none}
.step{
 display:inline-flex;align-items:center;gap:7px;
 padding:6px 13px;border-radius:999px;
 background:#f1f6fe;border:1px solid var(--line);
 font-size:12.8px;font-weight:600;color:var(--ink-2);
 white-space:nowrap;transition:.2s ease;
}
.step b{
 width:18px;height:18px;border-radius:50%;
 background:#fff;border:1px solid var(--line-strong);
 display:inline-flex;align-items:center;justify-content:center;
 font-size:11px;color:var(--brand);
}
.step:hover{border-color:var(--brand);color:var(--brand);background:#fff;transform:translateY(-1px)}

/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:12px 24px;border-radius:9px;
 font-size:15px;font-weight:600;line-height:1.2;
 border:1px solid transparent;
 transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease;
}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:8px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(29,78,216,.24)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 26px rgba(29,78,216,.32)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(29,78,216,.26)}
.btn-ghost{background:#fff;color:var(--ink-2);border-color:var(--line-strong)}
.btn-ghost:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-soft);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--brand-dark)}
.btn-light:hover{background:#eef4ff;transform:translateY(-2px)}

/* ---------- generic ---------- */
.tag{
 display:inline-flex;align-items:center;
 padding:5px 13px;border-radius:999px;
 background:var(--brand-soft);color:var(--brand-dark);
 font-size:13px;font-weight:600;
}
.tag-line{border:1px solid var(--line-strong);background:#fff;color:var(--ink-2)}
.tag-accent{background:#e6f6ff;color:#0b6f9c;border:1px solid #bfe6f7}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:13px;font-weight:600;letter-spacing:.4px;
 color:var(--brand);background:var(--brand-soft);
 padding:6px 14px;border-radius:999px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}
section{position:relative}
.section{padding:76px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:740px;margin-bottom:38px}
.section-head h2{
 font-size:clamp(23px,2.6vw,31px);font-weight:800;letter-spacing:-.2px;line-height:1.35;color:var(--ink);
}
.section-head h2::after{
 content:"";display:block;width:52px;height:4px;border-radius:4px;
 background:linear-gradient(90deg,#2f6ae0,#8ab0f5);margin-top:16px;
}
.section-head p{margin-top:16px;color:var(--ink-2);font-size:15.5px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}

/* ---------- hero ---------- */
.hero{
 padding:60px 0 66px;
 background:
 linear-gradient(115deg,rgba(244,248,253,.97) 0%,rgba(244,248,253,.92) 46%,rgba(232,239,255,.88) 100%),
 url('/assets/images/backpic/back-4.webp') center/cover no-repeat;
 border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:1.34fr .78fr;gap:52px;align-items:center}
.hero-copy h1{
 margin-top:20px;
 font-size:clamp(28px,3.8vw,42px);
 font-weight:800;line-height:1.26;letter-spacing:-.6px;
}
.hero-copy h1 em{font-style:normal;color:var(--brand)}
.hero-lead{margin-top:20px;font-size:16px;color:var(--ink-2);line-height:1.88;max-width:620px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-visual{
 background:#fff;border:1px solid var(--line);border-radius:18px;
 box-shadow:var(--shadow-md);padding:14px;max-width:320px;margin-left:auto;
}
.hero-visual:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.hero-visual{transition:transform .25s ease,box-shadow .25s ease}
.phone-frame{
 position:relative;aspect-ratio:9/16;border-radius:14px;overflow:hidden;
 background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
 display:flex;flex-direction:column;justify-content:space-between;padding:16px;
}
.phone-frame::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(180deg,rgba(8,20,36,.62) 0%,rgba(8,20,36,.18) 42%,rgba(8,20,36,.82) 100%);
}
.phone-top,.phone-bottom{position:relative;z-index:2;color:#fff}
.phone-top .live{
 display:inline-flex;align-items:center;gap:7px;
 background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.32);
 padding:5px 11px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.3px;
}
.phone-top .live i{width:6px;height:6px;border-radius:50%;background:#6ee7b7;display:inline-block}
.phone-top h2{margin-top:12px;font-size:17px;font-weight:700;line-height:1.5;color:#fff}
.phone-mid{position:relative;z-index:2;color:#fff}
.phone-mid .big{font-size:34px;font-weight:800;letter-spacing:-.5px;line-height:1.1}
.phone-mid .big span{font-size:15px;font-weight:600;opacity:.8;margin-left:4px}
.phone-mid .cap{font-size:12.5px;color:rgba(255,255,255,.82);margin-top:6px}
.phone-bottom ul{display:grid;gap:7px}
.phone-bottom li{
 display:flex;align-items:center;justify-content:space-between;gap:10px;
 font-size:12.5px;color:rgba(255,255,255,.92);
 border-top:1px solid rgba(255,255,255,.2);padding-top:7px;
}
.phone-bottom li b{font-weight:700;color:#fff}
.phone-caption{margin-top:12px;font-size:12.5px;color:var(--muted);text-align:center}

/* ---------- cards ---------- */
.card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
 overflow:hidden;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.card-body{padding:24px 24px 26px}
.card-body h3{font-size:18px;font-weight:700;line-height:1.45}
.card-body p{margin-top:10px;font-size:14.5px;color:var(--ink-2)}
.card-icon{
 width:42px;height:42px;border-radius:12px;background:var(--brand-soft);
 color:var(--brand);display:flex;align-items:center;justify-content:center;
 font-weight:800;font-size:15px;margin-bottom:14px;
}
.card-tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.media-16-9{aspect-ratio:16/10;overflow:hidden;background:#eef4fb}
.media-16-9 img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .35s ease}
.card:hover .media-16-9 img{transform:scale(1.04)}
.price-line{display:flex;align-items:baseline;gap:8px;margin-top:14px}
.price-line strong{font-size:22px;font-weight:800;color:var(--brand-dark);letter-spacing:-.3px}
.price-line span{font-size:13px;color:var(--muted)}

/* ---------- drop table ---------- */
.spot-card .card-body{padding-top:22px}
.spot-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.spot-head h3{font-size:17.5px}
.rate{font-size:12.5px;font-weight:700;color:var(--brand-dark);background:var(--brand-soft);padding:4px 10px;border-radius:999px;white-space:nowrap}
.drop-list{margin-top:16px;display:grid;gap:10px}
.drop-list li{
 display:flex;align-items:center;justify-content:space-between;gap:12px;
 padding-bottom:10px;border-bottom:1px dashed var(--line);
 font-size:14px;color:var(--ink-2);
}
.drop-list li:last-child{border-bottom:0;padding-bottom:0}
.drop-list li b{font-weight:700;color:var(--ink)}

/* ---------- timeline ---------- */
.timeline{display:grid;gap:18px;margin-top:8px}
.tl-item{
 display:grid;grid-template-columns:56px 1fr;gap:20px;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:22px 24px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tl-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.tl-num{
 width:44px;height:44px;border-radius:12px;
 background:linear-gradient(140deg,#2f6ae0,#1a3fae);color:#fff;
 display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;
 box-shadow:0 8px 18px rgba(29,78,216,.24);
}
.tl-item h3{font-size:17px;font-weight:700}
.tl-item p{margin-top:8px;font-size:14.5px;color:var(--ink-2)}

/* ---------- compare ---------- */
.compare-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.compare-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:26px 26px 28px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.compare-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.compare-card.is-solid{background:linear-gradient(160deg,#16336b,#1a3fae);border-color:transparent;color:#fff}
.compare-card.is-solid h3,.compare-card.is-solid .compare-kicker{color:#fff}
.compare-card.is-solid p{color:rgba(255,255,255,.84)}
.compare-kicker{font-size:13px;font-weight:700;letter-spacing:.5px;color:var(--brand);text-transform:none}
.compare-card h3{margin-top:10px;font-size:19px;font-weight:800}
.compare-card p{margin-top:10px;font-size:14.5px;color:var(--ink-2)}
.compare-list{margin-top:18px;display:grid;gap:10px}
.compare-list li{
 display:flex;gap:10px;align-items:flex-start;
 font-size:14.2px;line-height:1.7;
}
.compare-list li::before{
 content:"";flex:0 0 auto;margin-top:8px;
 width:7px;height:7px;border-radius:50%;background:var(--accent);
}
.compare-card.is-solid .compare-list li::before{background:#7dd3fc}

/* ---------- steps ---------- */
.step-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:stepc}
.step-card{
 position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:26px 24px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.step-card .idx{
 display:inline-flex;align-items:center;justify-content:center;
 min-width:34px;height:26px;padding:0 10px;border-radius:999px;
 background:var(--brand-soft);color:var(--brand-dark);font-size:12.5px;font-weight:700;
}
.step-card h3{margin-top:14px;font-size:17px;font-weight:700}
.step-card p{margin-top:9px;font-size:14.5px;color:var(--ink-2)}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px}
.faq-item{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
 box-shadow:var(--shadow-sm);overflow:hidden;
 transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:var(--line-strong);box-shadow:var(--shadow-md)}
.faq-item summary{
 list-style:none;cursor:pointer;padding:18px 22px;
 font-size:15.5px;font-weight:700;color:var(--ink);
 display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
 content:"+";font-size:18px;font-weight:600;color:var(--brand);
 transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"−"}
.faq-item .faq-body{padding:0 22px 20px;font-size:14.5px;color:var(--ink-2)}

/* ---------- news list ---------- */
.news-card .news-link{display:block;height:100%}
.news-media{aspect-ratio:16/9;overflow:hidden;background:#eef4fb}
.news-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .35s ease}
.news-card:hover .news-media img{transform:scale(1.05)}
.news-body{padding:20px 22px 24px}
.news-body h3{margin-top:12px;font-size:16.5px;font-weight:700;line-height:1.5;color:var(--ink)}
.news-card:hover .news-body h3{color:var(--brand)}
.news-body p{margin-top:9px;font-size:14px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:block;margin-top:14px;font-size:12.5px;color:var(--muted)}
.news-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}
.empty-tip{
 background:#fff;border:1px dashed var(--line-strong);border-radius:var(--radius-sm);
 padding:34px 22px;text-align:center;color:var(--muted);font-size:14.5px;
}

/* ---------- final cta ---------- */
.final-band{
 background:linear-gradient(120deg,#14306a 0%,#1d4ed8 62%,#2563eb 100%);
 color:#fff;border-radius:18px;padding:44px 44px 46px;
 box-shadow:0 24px 54px rgba(20,48,106,.28);
 display:grid;grid-template-columns:1.4fr .8fr;gap:36px;align-items:center;
}
.final-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;line-height:1.35}
.final-band p{margin-top:14px;font-size:15px;color:rgba(255,255,255,.86);max-width:620px}
.final-actions{display:flex;flex-direction:column;gap:12px;align-items:stretch}
.final-actions .btn{width:100%}
.final-note{font-size:12.5px;color:rgba(255,255,255,.7);text-align:center}

/* ---------- footer ---------- */
.site-footer{background:#0f1f33;color:#c8d6e8;padding:56px 0 26px;margin-top:0}
.footer-top{
 display:flex;align-items:center;justify-content:space-between;gap:24px;
 padding-bottom:26px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{display:flex;align-items:center;gap:13px}
.footer-brand .brand-text{color:#fff;font-size:17px}
.footer-brand p{margin-top:4px;font-size:13px;color:#93a6bf}
.footer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;padding:34px 0 8px}
.footer-col h3{font-size:14px;font-weight:700;color:#fff;letter-spacing:.3px}
.footer-col ul{margin-top:14px;display:grid;gap:9px}
.footer-col li{font-size:13.5px;color:#93a6bf;line-height:1.7}
.footer-col a{color:#b9c9de;transition:color .2s ease}
.footer-col a:hover{color:#fff}
.footer-bottom{
 display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
 margin-top:28px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
 font-size:12.5px;color:#8296b0;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
 .hero-grid{grid-template-columns:1fr;gap:36px}
 .hero-visual{margin:0 auto;max-width:290px}
 .grid-4{grid-template-columns:repeat(2,1fr)}
 .grid-3{grid-template-columns:repeat(2,1fr)}
 .step-cards{grid-template-columns:repeat(2,1fr)}
 .final-band{grid-template-columns:1fr;padding:36px 30px}
 .footer-grid{grid-template-columns:repeat(3,1fr);gap:24px}
}
@media (max-width:768px){
 .nav-links{
  position:absolute;left:0;right:0;top:100%;
  flex-direction:column;align-items:stretch;gap:4px;
  background:#fff;border-bottom:1px solid var(--line);
  padding:12px 18px 18px;box-shadow:0 16px 30px rgba(15,31,51,.12);
  display:none;
 }
 .nav-links.is-open{display:flex}
 .nav-link{padding:11px 12px;font-size:15px;border-radius:8px}
 .nav-toggle{display:flex}
 .nav-actions{margin-left:auto}
 .grid-2,.grid-3,.grid-4,.compare-grid,.step-cards{grid-template-columns:1fr}
 .section{padding:56px 0}
 .hero{padding:44px 0 52px}
 .card-body{padding:22px 20px 24px}
 .footer-grid{grid-template-columns:1fr;gap:22px;padding-top:26px}
 .footer-top{flex-direction:column;align-items:flex-start}
 .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:520px){
 body{font-size:15px}
 .container{padding:0 16px}
 .brand-text{font-size:15px}
 .hero-copy h1{font-size:26px}
 .hero-btns .btn{width:100%}
 .btn{padding:12px 18px}
 .section{padding:46px 0}
 .section-head{margin-bottom:26px}
 .tl-item{grid-template-columns:1fr;gap:14px;padding:20px}
 .phone-mid .big{font-size:28px}
 .final-band{padding:30px 22px}
 .nav-actions .btn-sm{padding:8px 12px;font-size:13px}
}

/* roulang page: category2 */
:root{
 --bg:#f4f8fd;
 --surface:#ffffff;
 --ink:#0f1f33;
 --ink-2:#33465e;
 --muted:#64748b;
 --brand:#1d4ed8;
 --brand-dark:#1a3fae;
 --brand-soft:#e8efff;
 --accent:#0ea5e9;
 --gold:#e6c178;
 --line:#e3eaf4;
 --line-strong:#cfdcef;
 --radius:14px;
 --radius-sm:10px;
 --shadow-sm:0 1px 2px rgba(15,31,51,.05), 0 4px 14px rgba(15,31,51,.05);
 --shadow-md:0 10px 28px rgba(15,31,51,.09);
 --shadow-lg:0 20px 50px rgba(15,31,51,.14);
 --container:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{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;
 background:var(--bg);
 color:var(--ink);
 font-size:16px;
 line-height:1.78;
 padding-bottom:78px;
 -webkit-font-smoothing:antialiased;
 text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{list-style:none;padding:0}
img{max-width:100%;display:block;border-radius:var(--radius-sm)}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none}
:focus-visible{outline:3px solid rgba(29,78,216,.45);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px}

/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(255,255,255,.94);
 backdrop-filter:saturate(160%) blur(12px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(15,31,51,.08)}
.nav-bar{display:flex;align-items:center;gap:26px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
 width:34px;height:34px;border-radius:10px;
 background:linear-gradient(140deg,#2f6ae0,#1a3fae);
 color:#fff;font-weight:700;font-size:17px;
 display:flex;align-items:center;justify-content:center;
 box-shadow:0 6px 14px rgba(29,78,216,.28);
}
.brand-text{font-size:16.5px;font-weight:700;letter-spacing:.2px;color:var(--ink);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
 position:relative;padding:8px 14px;border-radius:9px;
 font-size:14.5px;font-weight:500;color:var(--ink-2);
 transition:color .2s ease,background-color .2s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link.is-active{color:var(--brand);font-weight:700;background:var(--brand-soft)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:10px;
 border:1px solid var(--line);align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-2);border-radius:2px;transition:.2s}
.step-track{display:flex;gap:8px;padding:0 0 12px;overflow-x:auto;scrollbar-width:none}
.step-track::-webkit-scrollbar{display:none}
.step{
 display:inline-flex;align-items:center;gap:8px;
 font-size:13px;color:var(--muted);
 padding:6px 12px;border-radius:999px;
 background:#f7faff;border:1px solid var(--line);
 white-space:nowrap;transition:.2s ease;
}
.step b{
 width:20px;height:20px;border-radius:50%;
 background:#dbe7fb;color:var(--brand-dark);
 font-size:11.5px;font-weight:700;
 display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.step:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-soft)}
.step:hover b{background:var(--brand);color:#fff}

/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:12px 24px;border-radius:9px;
 font-size:15px;font-weight:600;line-height:1.2;
 transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease;
 border:1px solid transparent;
}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:8px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(29,78,216,.24)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 26px rgba(29,78,216,.32)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--ink-2);border-color:var(--line-strong)}
.btn-ghost:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-soft);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--brand-dark)}
.btn-light:hover{background:#eef4ff;transform:translateY(-2px)}

/* ---------- generic ---------- */
.tag{
 display:inline-flex;align-items:center;
 padding:5px 13px;border-radius:999px;
 background:var(--brand-soft);color:var(--brand-dark);
 font-size:13px;font-weight:600;
}
.tag-line{border:1px solid var(--line-strong);background:#fff;color:var(--ink-2)}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:13px;font-weight:600;letter-spacing:.4px;
 color:var(--brand);background:var(--brand-soft);
 padding:6px 14px;border-radius:999px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}
section{position:relative}
.section{padding:76px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:740px;margin-bottom:38px}
.section-head h2{
 font-size:clamp(23px,2.6vw,31px);font-weight:800;letter-spacing:-.2px;
 line-height:1.35;color:var(--ink);
}
.section-head h2::after{
 content:"";display:block;width:52px;height:4px;border-radius:4px;
 background:linear-gradient(90deg,#2f6ae0,#8ab0f5);margin-top:16px;
}
.section-head p{margin-top:16px;color:var(--ink-2);font-size:15.5px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}

/* ---------- hero ---------- */
.hero{
 padding:60px 0 64px;
 background:
 linear-gradient(115deg,rgba(244,248,253,.97) 0%,rgba(244,248,253,.92) 48%,rgba(232,239,255,.88) 100%),
 url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
 border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:1.28fr .92fr;gap:52px;align-items:center}
.hero-copy h1{
 margin-top:20px;
 font-size:clamp(28px,3.8vw,43px);
 font-weight:800;line-height:1.26;letter-spacing:-.6px;
}
.hero-copy h1 em{font-style:normal;color:var(--brand)}
.hero-lead{margin-top:22px;font-size:16px;color:var(--ink-2);line-height:1.85;max-width:640px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-panel{
 position:relative;overflow:hidden;
 background:linear-gradient(158deg,#0f2038 0%,#16294a 58%,#0d1b30 100%);
 border:1px solid rgba(255,255,255,.09);
 border-radius:18px;padding:26px 26px 24px;
 color:#e8eefb;box-shadow:var(--shadow-lg);
}
.hero-panel::before{
 content:"";position:absolute;top:-70px;right:-60px;width:200px;height:200px;border-radius:50%;
 background:radial-gradient(circle,rgba(230,193,120,.28),rgba(230,193,120,0) 70%);
 pointer-events:none;
}
.panel-badge{
 display:inline-flex;align-items:center;gap:8px;
 background:linear-gradient(135deg,#f2d08a,#c99a3f);
 color:#2a1c05;font-weight:700;font-size:12.5px;
 padding:6px 13px;border-radius:999px;letter-spacing:.4px;
}
.panel-title{margin-top:16px;font-size:18px;font-weight:700;color:#fff;line-height:1.45}
.panel-sub{margin-top:8px;font-size:13.5px;color:#a9bcd6;line-height:1.7}
.panel-list{margin-top:18px;display:grid;gap:0}
.panel-list li{
 display:flex;justify-content:space-between;align-items:center;gap:14px;
 font-size:13.5px;color:#a9bcd6;
 padding:10px 0;border-bottom:1px dashed rgba(255,255,255,.13);
}
.panel-list li:last-child{border-bottom:0}
.panel-list li b{color:#fff;font-weight:700;font-variant-numeric:tabular-nums;text-align:right}
.panel-cta{
 margin-top:20px;display:inline-flex;align-items:center;gap:8px;
 padding:10px 18px;border-radius:9px;
 background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);
 color:#fff;font-size:14px;font-weight:600;transition:.2s ease;
}
.panel-cta:hover{background:rgba(255,255,255,.18);transform:translateY(-2px)}

/* ---------- cards ---------- */
.card{
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius);
 box-shadow:var(--shadow-sm);
 padding:26px 24px;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.card-icon{
 width:44px;height:44px;border-radius:12px;
 background:var(--brand-soft);color:var(--brand-dark);
 display:flex;align-items:center;justify-content:center;
 font-weight:800;font-size:14px;letter-spacing:.5px;
}
.card h3{font-size:17px;font-weight:700;margin-top:16px}
.card p{margin-top:10px;font-size:14.5px;color:var(--ink-2);line-height:1.76}
.card .tag{margin-top:16px}

/* ---------- window table ---------- */
.window-table{
 background:#fff;border:1px solid var(--line);
 border-radius:var(--radius);overflow:hidden;
 box-shadow:var(--shadow-sm);
}
.window-row{
 display:grid;grid-template-columns:1.05fr 1.25fr .9fr 2fr;
 gap:14px;padding:15px 22px;align-items:center;
 border-bottom:1px solid var(--line);
 font-size:14.5px;color:var(--ink-2);
 transition:background-color .2s ease;
}
.window-row:last-child{border-bottom:0}
.window-row:hover{background:#f5f9ff}
.window-row.head{
 background:#eef4ff;font-weight:700;font-size:13.5px;
 color:var(--brand-dark);letter-spacing:.3px;
}
.window-row .round{font-weight:700;color:var(--ink)}
.window-row .time{font-weight:700;color:var(--brand-dark);font-variant-numeric:tabular-nums}
.window-row .lead-t{color:var(--ink-2);font-weight:600}
.window-note{
 display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;
 font-size:13.5px;color:var(--muted);
}
.window-note span{
 background:#fff;border:1px solid var(--line);
 border-radius:999px;padding:6px 14px;
}

/* ---------- flow ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.flow-item{
 background:#fff;border:1px solid var(--line);
 border-radius:var(--radius);padding:24px 22px;
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.flow-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.flow-num{font-size:13px;font-weight:800;color:var(--brand);letter-spacing:1.4px}
.flow-item h3{font-size:16px;font-weight:700;margin-top:10px}
.flow-item p{margin-top:8px;font-size:14px;color:var(--ink-2);line-height:1.75}

/* ---------- compare ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-col{
 background:#fff;border:1px solid var(--line);
 border-radius:var(--radius);padding:26px;
 box-shadow:var(--shadow-sm);
}
.compare-col.is-primary{
 background:linear-gradient(170deg,#f2f7ff,#ffffff);
 border-color:#c2d7f7;box-shadow:var(--shadow-md);
}
.compare-col h3{font-size:17.5px;font-weight:700;display:flex;align-items:center;gap:10px}
.compare-col h3 .dot{width:9px;height:9px;border-radius:50%;background:var(--line-strong)}
.compare-col.is-primary h3 .dot{background:var(--brand)}
.compare-list{margin-top:16px}
.compare-list li{
 display:flex;gap:10px;
 font-size:14.5px;color:var(--ink-2);
 padding:11px 0;border-bottom:1px dashed var(--line);
 line-height:1.7;
}
.compare-list li:last-child{border-bottom:0}
.compare-list li::before{
 content:"";width:7px;height:7px;border-radius:50%;
 background:var(--line-strong);margin-top:9px;flex:0 0 auto;
}
.compare-col.is-primary .compare-list li::before{background:var(--brand)}

/* ---------- quotes ---------- */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.quote{
 background:#fff;border:1px solid var(--line);
 border-radius:var(--radius);padding:24px;
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease;
}
.quote:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.quote p{font-size:14.5px;color:var(--ink-2);line-height:1.78}
.quote footer{
 margin-top:18px;display:flex;align-items:center;gap:10px;
 font-size:13.5px;color:var(--muted);
}
.quote .avatar{
 width:34px;height:34px;border-radius:50%;
 background:var(--brand-soft);color:var(--brand-dark);
 display:flex;align-items:center;justify-content:center;
 font-weight:700;font-size:13px;flex:0 0 auto;
}

/* ---------- channels ---------- */
.channels{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.channel{
 display:block;background:#fff;border:1px solid var(--line);
 border-radius:var(--radius);padding:26px 24px;
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.channel:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.channel .kicker{font-size:12.5px;font-weight:700;letter-spacing:.6px;color:var(--muted)}
.channel h3{font-size:18px;font-weight:700;margin-top:10px}
.channel p{margin-top:10px;font-size:14px;color:var(--ink-2);line-height:1.75}
.channel .more{display:inline-block;margin-top:16px;font-size:13.5px;font-weight:700;color:var(--brand)}
.channel.is-current{background:linear-gradient(170deg,#f2f7ff,#ffffff);border-color:#c2d7f7}
.channel.is-current .kicker{color:var(--brand)}

/* ---------- faq ---------- */
.faq{display:grid;gap:14px;max-width:900px}
.faq-item{
 background:#fff;border:1px solid var(--line);
 border-radius:12px;padding:18px 22px;
 box-shadow:var(--shadow-sm);
 transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:var(--line-strong);box-shadow:var(--shadow-md)}
.faq-item summary{
 cursor:pointer;font-weight:700;font-size:16px;color:var(--ink);
 list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--brand);font-size:20px;font-weight:700;line-height:1}
.faq-item[open] summary::after{content:"–"}
.faq-item p{margin-top:12px;font-size:14.5px;color:var(--ink-2);line-height:1.78}

/* ---------- final ---------- */
.final{
 background:linear-gradient(140deg,#10213a 0%,#17315a 62%,#0e1d33 100%);
 color:#e9f0fb;padding:72px 0 64px;
}
.final-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.final h2{font-size:clamp(24px,3vw,33px);font-weight:800;line-height:1.32;color:#fff;letter-spacing:-.3px}
.final p{margin-top:16px;color:#b3c5de;font-size:15.5px;line-height:1.8}
.final-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.assure{display:grid;gap:14px}
.assure-item{
 border:1px solid rgba(255,255,255,.15);border-radius:12px;
 padding:16px 20px;background:rgba(255,255,255,.05);
 transition:background-color .2s ease,border-color .2s ease;
}
.assure-item:hover{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.26)}
.assure-item b{display:block;color:#fff;font-size:14.5px;font-weight:700}
.assure-item span{display:block;margin-top:4px;font-size:13px;color:#a9bcd6;line-height:1.65}

/* ---------- footer ---------- */
.site-footer{background:#0d1a2b;color:#b7c7dd;padding:56px 0 26px}
.footer-top{
 display:flex;justify-content:space-between;align-items:center;gap:22px;
 padding-bottom:26px;border-bottom:1px solid rgba(255,255,255,.1);flex-wrap:wrap;
}
.footer-brand{display:flex;align-items:center;gap:12px}
.footer-brand .brand-text{color:#fff;font-size:16.5px}
.footer-brand p{font-size:13px;color:#8fa5c1;margin:2px 0 0}
.footer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;padding:34px 0 26px}
.footer-col h3{font-size:14.5px;color:#fff;font-weight:700;margin-bottom:14px}
.footer-col li{font-size:13.5px;color:#9fb3cc;margin-bottom:9px;line-height:1.7}
.footer-col a{transition:color .2s ease}
.footer-col a:hover{color:#fff}
.footer-bottom{
 display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
 padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
 font-size:12.5px;color:#7f95b1;
}
.site-footer .brand-mark{box-shadow:none}

/* ---------- bottom bar ---------- */
.bottom-cta{
 position:fixed;left:0;right:0;bottom:0;z-index:70;
 background:rgba(13,26,43,.96);
 backdrop-filter:blur(10px);
 border-top:1px solid rgba(255,255,255,.13);
 transition:transform .3s ease;
}
.bottom-cta.hide{transform:translateY(120%)}
.bottom-cta .inner{
 max-width:var(--container);margin:0 auto;padding:12px 22px;
 display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.bottom-cta .txt{font-size:14px;color:#c3d2e6;line-height:1.5}
.bottom-cta .txt b{color:#fff;font-weight:700}
.bottom-cta .btn{flex:0 0 auto}

/* ---------- responsive ---------- */
@media (max-width:1024px){
 .hero-grid{grid-template-columns:1fr;gap:34px}
 .hero-lead{max-width:none}
 .final-inner{grid-template-columns:1fr;gap:32px}
 .flow{grid-template-columns:repeat(2,1fr)}
 .channels{grid-template-columns:repeat(2,1fr)}
 .quotes{grid-template-columns:repeat(2,1fr)}
 .grid-3{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:860px){
 .nav-links{
 position:absolute;top:64px;left:0;right:0;
 display:none;flex-direction:column;align-items:stretch;gap:2px;
 margin:0;padding:12px 22px 16px;
 background:#fff;border-bottom:1px solid var(--line);
 box-shadow:0 18px 32px rgba(15,31,51,.12);
 }
 .nav-links.is-open{display:flex}
 .nav-link{padding:12px 14px;font-size:15px}
 .nav-toggle{display:flex}
 .nav-actions{margin-left:auto}
 .section{padding:60px 0}
}
@media (max-width:768px){
 .grid-2,.grid-3,.compare,.channels,.quotes{grid-template-columns:1fr}
 .window-table{border:0;background:transparent;box-shadow:none;display:grid;gap:12px}
 .window-row.head{display:none}
 .window-row{
 grid-template-columns:1fr;gap:6px;padding:16px 18px;
 background:#fff;border:1px solid var(--line);border-radius:12px;
 box-shadow:var(--shadow-sm);
 }
 .window-row:hover{background:#fff}
 .window-row .round{font-size:15px}
 .footer-grid{grid-template-columns:1fr;gap:26px}
 .hero-panel{padding:22px}
 .section{padding:54px 0}
}
@media (max-width:520px){
 body{padding-bottom:92px;font-size:15.5px}
 .container{padding:0 16px}
 .hero{padding:42px 0 48px}
 .hero-copy h1{font-size:26px;letter-spacing:-.2px}
 .hero-lead{font-size:15px}
 .flow{grid-template-columns:1fr}
 .btn{padding:11px 18px;font-size:14.5px}
 .section-head h2{font-size:22px}
 .bottom-cta .inner{padding:10px 16px;gap:12px;flex-wrap:wrap}
 .bottom-cta .txt{font-size:12.5px}
 .footer-top{align-items:flex-start}
 .card{padding:22px 20px}
}