/* roulang page: index */
:root{
  --brand-900:#0b1b33;
  --brand-800:#122a4d;
  --brand-700:#1b3d6f;
  --brand-600:#1d4ed8;
  --brand-500:#2f6bf0;
  --brand-100:#e6eefc;
  --brand-50:#f3f7fe;
  --gold-500:#d99c2b;
  --gold-400:#e8b352;
  --ink-900:#0f172a;
  --ink-700:#334155;
  --ink-500:#64748b;
  --ink-300:#cbd5e1;
  --line:#e3e9f2;
  --bg:#f7f9fd;
  --card:#ffffff;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(15,23,42,.06),0 3px 10px rgba(15,23,42,.05);
  --shadow-md:0 8px 26px rgba(15,23,42,.08);
  --shadow-lg:0 18px 48px rgba(15,23,42,.13);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--ink-900);
  line-height:1.72;
  font-size:16px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:3px solid rgba(47,107,240,.45);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--brand-900);
  border-bottom:1px solid rgba(255,255,255,.08);
  box-shadow:0 6px 24px rgba(6,18,38,.28);
}
.nav-inner{display:flex;align-items:center;gap:22px;height:72px}
.logo{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;font-size:19px;letter-spacing:.02em}
.logo-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(135deg,var(--gold-400),var(--gold-500));
  color:#12233d;display:grid;place-items:center;font-size:15px;font-weight:900;
  box-shadow:0 6px 16px rgba(217,156,43,.35);
}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  padding:9px 17px;border-radius:999px;color:rgba(255,255,255,.76);
  font-size:15px;font-weight:500;transition:background .22s ease,color .22s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.09)}
.nav-link.is-active{color:#fff;background:rgba(255,255,255,.15)}
.nav-cta{
  margin-left:10px;padding:10px 21px;border-radius:999px;
  background:linear-gradient(135deg,var(--gold-400),var(--gold-500));
  color:#152741;font-weight:700;font-size:14.5px;
  box-shadow:0 8px 20px rgba(217,156,43,.32);
  transition:transform .22s ease,box-shadow .22s ease;
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(217,156,43,.45)}
.nav-toggle{
  display:none;margin-left:auto;width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.1);flex-direction:column;justify-content:center;
  align-items:center;gap:5px;transition:background .2s ease;
}
.nav-toggle:hover{background:rgba(255,255,255,.18)}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px}
.mobile-panel{display:none}
.mobile-panel.is-open{
  display:flex;flex-direction:column;gap:6px;
  padding:12px 20px 20px;background:var(--brand-800);
  border-top:1px solid rgba(255,255,255,.08);
}
.mobile-panel .nav-link{text-align:left}
.mobile-panel .nav-cta{margin:8px 0 0;text-align:center}

/* Hero */
.hero{
  padding:64px 0 78px;
  background:
    radial-gradient(1100px 460px at 10% -12%,#e7efff 0%,rgba(247,249,253,0) 62%),
    radial-gradient(820px 380px at 96% 8%,#fdf3e2 0%,rgba(247,249,253,0) 60%),
    var(--bg);
}
.hero-grid{display:grid;grid-template-columns:1.38fr .85fr;gap:26px;align-items:start}
.hero-card{
  background:#fff;border:1px solid var(--line);border-radius:24px;
  box-shadow:var(--shadow-md);
}
.hero-main{padding:38px 38px 32px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:5px 15px;border-radius:999px;
  background:var(--brand-50);color:var(--brand-600);font-size:13px;font-weight:700;
  letter-spacing:.04em;border:1px solid #dce7fb;
}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--brand-500);display:block}
.hero-title{
  font-size:clamp(28px,3.7vw,45px);line-height:1.26;font-weight:800;
  letter-spacing:-.015em;margin:20px 0 14px;
}
.hero-sub{
  font-size:clamp(17px,1.7vw,20px);color:var(--brand-700);
  font-weight:700;margin-bottom:16px;
}
.hero-text{color:var(--ink-500);font-size:15.8px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:13px;margin-bottom:28px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding-top:24px;border-top:1px dashed var(--line)}
.hero-stats .stat-value{font-size:26px}
.hero-side{display:flex;flex-direction:column;gap:22px}
.hero-side .hero-card:nth-child(1){transform:translateY(-18px)}
.hero-side .hero-card:nth-child(2){transform:translateY(18px)}
.side-card{padding:24px 24px 22px}
.side-card h3{font-size:16.5px;font-weight:800;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 em{
  font-style:normal;font-size:11.5px;font-weight:700;color:var(--brand-600);
  background:var(--brand-100);padding:2px 9px;border-radius:999px;
}
.rank-list li{display:flex;align-items:center;gap:12px;padding:9px 0;border-bottom:1px dashed var(--line);font-size:14.6px;color:var(--ink-700)}
.rank-list li:last-child{border-bottom:0}
.rank-num{
  width:22px;height:22px;border-radius:7px;background:var(--brand-50);color:var(--brand-600);
  display:grid;place-items:center;font-size:12.5px;font-weight:800;flex:none;
}
.rank-num.top{background:linear-gradient(135deg,var(--gold-400),var(--gold-500));color:#152741}
.rank-heat{margin-left:auto;font-size:12.5px;color:var(--ink-500)}
.step-mini li{display:flex;gap:11px;padding:9px 0;font-size:14.6px;color:var(--ink-700)}
.step-mini b{
  width:24px;height:24px;border-radius:8px;background:var(--brand-600);color:#fff;
  display:grid;place-items:center;font-size:12.5px;flex:none;
}

/* 通用板块 */
.section{padding:74px 0}
.section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:770px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-title{
  font-size:clamp(23px,3vw,33px);line-height:1.34;font-weight:800;
  letter-spacing:-.01em;margin:16px 0 12px;
}
.section-desc{color:var(--ink-500);font-size:16px}
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#cfe0fb}
.card-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:var(--brand-50);color:var(--brand-600);font-size:19px;font-weight:800;
  margin-bottom:16px;border:1px solid #dce7fb;
}
.card-title{font-size:17.5px;font-weight:800;margin-bottom:9px}
.card-text{font-size:14.8px;color:var(--ink-500);margin-bottom:12px}
.mini-list li{display:flex;gap:10px;align-items:flex-start;padding:6px 0;font-size:14.5px;color:var(--ink-700)}
.mini-list li::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--brand-500);
  margin-top:9px;flex:none;
}

/* 数据条 */
.stat{padding:26px 22px;border-radius:var(--radius-lg);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);text-align:center}
.stat-value{font-size:32px;font-weight:800;color:var(--brand-600);line-height:1.2}
.stat-label{font-size:14px;color:var(--ink-500);margin-top:6px}
.stat-note{font-size:13px;color:var(--ink-300);margin-top:4px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 27px;border-radius:999px;font-weight:700;font-size:15px;
  transition:transform .24s ease,box-shadow .24s ease,background .24s ease,border-color .24s ease,color .24s ease;
  border:1px solid transparent;white-space:nowrap;
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 10px 24px rgba(29,78,216,.26)}
.btn-primary:hover{background:#1740b8;transform:translateY(-2px);box-shadow:0 15px 32px rgba(29,78,216,.34)}
.btn-gold{background:linear-gradient(135deg,var(--gold-400),var(--gold-500));color:#152741;box-shadow:0 10px 24px rgba(217,156,43,.3)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 15px 32px rgba(217,156,43,.42)}
.btn-ghost{background:#fff;color:var(--brand-700);border-color:#cfdcf5}
.btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-600);background:var(--brand-50)}
.btn-sm{padding:10px 20px;font-size:14px}

/* 标签 */
.badge{display:inline-block;padding:3px 11px;border-radius:999px;font-size:12.5px;font-weight:700;background:var(--brand-100);color:var(--brand-700)}
.tag{display:inline-block;padding:4px 13px;border-radius:999px;font-size:13px;color:var(--ink-700);background:#f1f5fb;border:1px solid var(--line);transition:.2s}
.tag:hover{color:var(--brand-600);border-color:#cfdcf5;background:var(--brand-50)}

/* 场景 */
.scene{border-radius:var(--radius-lg);padding:26px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-sm);transition:.25s}
.scene:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.scene-tag{font-size:12.5px;font-weight:700;color:var(--gold-500);letter-spacing:.05em;margin-bottom:10px;display:block}
.scene h3{font-size:17px;font-weight:800;margin-bottom:9px}
.scene p{font-size:14.6px;color:var(--ink-500)}

/* 演示台 */
.demo-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:28px;align-items:start}
.step-list .step{display:flex;gap:15px;padding:17px 0;border-bottom:1px dashed var(--line)}
.step-list .step:last-child{border-bottom:0}
.step-num{
  width:34px;height:34px;border-radius:11px;background:var(--brand-600);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:14px;flex:none;
  box-shadow:0 8px 18px rgba(29,78,216,.24);
}
.step h4{font-size:16px;font-weight:800;margin-bottom:5px}
.step p{font-size:14.4px;color:var(--ink-500)}
.demo-preview{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:22px}
.preview-bar{display:flex;gap:6px;margin-bottom:16px}
.preview-dot{width:9px;height:9px;border-radius:50%;background:#dbe3ef}
.preview-row{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:12px;background:var(--brand-50);margin-bottom:10px}
.preview-avatar{width:34px;height:34px;border-radius:50%;background:var(--brand-100);color:var(--brand-700);display:grid;place-items:center;font-weight:800;font-size:13.5px;flex:none}
.preview-line{height:9px;border-radius:6px;background:#dfe8f6;flex:1}
.preview-line.short{max-width:46%}
.preview-block{border-radius:12px;border:1px dashed #d8e3f4;padding:14px;font-size:14px;color:var(--ink-500);background:#fbfdff}
.preview-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}

/* 案例 */
.case{border-radius:var(--radius-lg);background:#fff;border:1px solid var(--line);padding:26px;box-shadow:var(--shadow-sm);transition:.25s}
.case:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.case-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.case-logo{width:42px;height:42px;border-radius:13px;background:linear-gradient(135deg,var(--brand-700),var(--brand-600));color:#fff;display:grid;place-items:center;font-weight:800;font-size:15px}
.case-name{font-size:16px;font-weight:800}
.case-meta{font-size:13px;color:var(--ink-500)}
.case-text{font-size:14.8px;color:var(--ink-500);margin-bottom:16px}
.case-data{display:flex;gap:20px;padding-top:14px;border-top:1px dashed var(--line)}
.case-data b{display:block;font-size:21px;font-weight:800;color:var(--brand-600)}
.case-data span{font-size:12.8px;color:var(--ink-500)}

/* 前后对比 */
.ba-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.ba-col{border-radius:var(--radius-lg);padding:28px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-sm)}
.ba-col.after{border-color:#c9e7d8;background:linear-gradient(180deg,#f4fcf8,#ffffff)}
.ba-head{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16.5px;margin-bottom:16px}
.ba-pill{font-size:12px;font-weight:700;padding:3px 11px;border-radius:999px;background:#eef2f8;color:var(--ink-500)}
.ba-col.after .ba-pill{background:#dff5e8;color:#0f7a4f}
.ba-col li{display:flex;gap:10px;padding:8px 0;font-size:14.8px;color:var(--ink-700)}
.ba-col li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--ink-300);margin-top:9px;flex:none}
.ba-col.after li::before{background:#22a06b}

/* 套餐 */
.plan{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:32px 26px 28px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.plan:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.plan.featured{border-color:var(--brand-500);box-shadow:0 18px 46px rgba(29,78,216,.16)}
.plan-flag{
  position:absolute;top:-13px;left:26px;
  background:linear-gradient(135deg,var(--gold-400),var(--gold-500));
  color:#152741;font-size:12.5px;font-weight:800;padding:4px 15px;border-radius:999px;
}
.plan-name{font-size:17.5px;font-weight:800;margin-bottom:6px}
.plan-for{font-size:13.6px;color:var(--ink-500);margin-bottom:18px}
.plan-price{font-size:34px;font-weight:800;line-height:1;color:var(--ink-900)}
.plan-price span{font-size:14px;font-weight:500;color:var(--ink-500)}
.plan ul{margin:20px 0 24px;flex:1}
.plan ul li{display:flex;gap:9px;padding:7px 0;font-size:14.6px;color:var(--ink-700)}
.plan ul li::before{content:"✓";color:var(--brand-600);font-weight:800;font-size:13px}

/* 对比表 */
.table-scroll{overflow-x:auto;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}
.cmp-table{width:100%;min-width:600px;border-collapse:separate;border-spacing:0;background:#fff;border:1px solid var(--line);font-size:15px}
.cmp-table th,.cmp-table td{padding:15px 20px;text-align:left;border-bottom:1px solid var(--line)}
.cmp-table thead th{background:var(--brand-50);color:var(--brand-800);font-weight:800;font-size:14.5px}
.cmp-table tbody tr:last-child td{border-bottom:0}
.cmp-table td:first-child{color:var(--ink-500)}
.cmp-good{color:#0f7a4f;font-weight:700}

/* 口碑 */
.quote{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-sm);transition:.24s}
.quote:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#cfe0fb}
.quote-text{font-size:15.1px;color:var(--ink-700);margin-bottom:18px}
.quote-user{display:flex;align-items:center;gap:12px}
.avatar{width:38px;height:38px;border-radius:50%;background:var(--brand-100);color:var(--brand-700);display:grid;place-items:center;font-weight:800;font-size:14.5px;flex:none}
.quote-name{font-size:14.6px;font-weight:700}
.quote-role{font-size:12.8px;color:var(--ink-500)}

/* 排行 */
.board{border-radius:var(--radius-lg);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);overflow:hidden}
.board li{display:flex;align-items:center;gap:14px;padding:15px 22px;border-bottom:1px solid var(--line);font-size:14.8px;color:var(--ink-700);transition:background .2s ease}
.board li:last-child{border-bottom:0}
.board li:hover{background:var(--brand-50)}
.board-num{width:26px;height:26px;border-radius:9px;background:var(--brand-50);color:var(--brand-600);display:grid;place-items:center;font-size:13px;font-weight:800;flex:none}
.board li:nth-child(-n+3) .board-num{background:linear-gradient(135deg,var(--gold-400),var(--gold-500));color:#152741}
.board-val{margin-left:auto;font-size:13px;color:var(--ink-500)}

/* 频道入口墙 */
.channel{
  display:block;padding:22px;border-radius:var(--radius-lg);background:#fff;border:1px solid var(--line);
  box-shadow:var(--shadow-sm);transition:.25s;
}
.channel:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#cfe0fb}
.channel h3{font-size:16.5px;font-weight:800;margin-bottom:8px}
.channel p{font-size:14.3px;color:var(--ink-500);margin-bottom:12px}
.channel .more{font-size:13.6px;font-weight:700;color:var(--brand-600)}

/* 资讯 */
.news-item{
  display:flex;gap:18px;align-items:flex-start;padding:20px 22px;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.news-item:hover{transform:translateX(5px);box-shadow:var(--shadow-md);border-color:#cfe0fb}
.news-date{
  flex:none;width:60px;text-align:center;border-radius:12px;background:var(--brand-50);
  padding:8px 0;color:var(--brand-700);font-size:12.5px;font-weight:700;line-height:1.4;
}
.news-date b{display:block;font-size:18px;font-weight:800}
.news-item h3{font-size:16px;font-weight:800;margin-bottom:6px}
.news-item p{font-size:14.3px;color:var(--ink-500)}

/* FAQ */
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:0 22px;margin-bottom:14px;box-shadow:var(--shadow-sm);
  transition:border-color .24s ease,box-shadow .24s ease;
}
.faq-item[open]{border-color:#cfe0fb;box-shadow:var(--shadow-md)}
.faq-q{
  list-style:none;cursor:pointer;padding:19px 40px 19px 0;font-weight:700;
  font-size:16.4px;position:relative;color:var(--ink-900);
}
.faq-q::-webkit-details-marker{display:none}
.faq-q::after{
  content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);
  font-size:22px;color:var(--brand-600);font-weight:400;line-height:1;
}
.faq-item[open] .faq-q::after{content:"−"}
.faq-a{padding:0 0 20px;color:var(--ink-500);font-size:15.2px}

/* 收口 CTA */
.cta-band{
  border-radius:26px;padding:52px 44px;color:#fff;
  background:
    radial-gradient(760px 320px at 88% 0%,rgba(217,156,43,.35) 0%,rgba(11,27,51,0) 62%),
    linear-gradient(135deg,var(--brand-900) 0%,var(--brand-700) 100%);
  box-shadow:0 24px 60px rgba(11,27,51,.28);
}
.cta-band h2{font-size:clamp(23px,3vw,34px);font-weight:800;line-height:1.34;margin-bottom:14px}
.cta-band p{color:rgba(255,255,255,.76);font-size:16px;max-width:720px;margin-bottom:26px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.cta-points span{
  font-size:13.4px;padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);color:rgba(255,255,255,.85);
}

/* 页脚 */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:58px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px}
.footer-brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;font-size:18px;margin-bottom:14px}
.footer-desc{font-size:14.3px;color:rgba(255,255,255,.6);max-width:330px}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px}
.footer-link{display:block;color:rgba(255,255,255,.66);font-size:14.4px;padding:5px 0;transition:color .2s ease,transform .2s ease}
.footer-link:hover{color:#fff;transform:translateX(3px)}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13.4px;color:rgba(255,255,255,.5);
}

/* 响应式 */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr}
  .hero-side{flex-direction:row;gap:20px}
  .hero-side .hero-card:nth-child(1),
  .hero-side .hero-card:nth-child(2){transform:none;flex:1}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .demo-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .hero{padding:46px 0 60px}
  .hero-main{padding:28px 24px 26px}
  .hero-side{flex-direction:column}
  .hero-stats{grid-template-columns:1fr 1fr}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .ba-grid{grid-template-columns:1fr}
  .cta-band{padding:36px 24px;border-radius:20px}
  .news-item{flex-direction:column;gap:12px}
  .news-date{width:100%;text-align:left;padding:8px 14px}
  .news-date b{display:inline;margin-right:4px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .hero-stats{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .case-data{flex-direction:column;gap:10px}
  .plan{padding:28px 20px 24px}
}

/* roulang page: category1 */
:root{
 --brand-900:#0b1b33;
 --brand-800:#122a4d;
 --brand-700:#1b3d6f;
 --brand-600:#1d4ed8;
 --brand-500:#2f6bf0;
 --brand-100:#e6eefc;
 --brand-50:#f3f7fe;
 --gold-500:#d99c2b;
 --gold-400:#e8b352;
 --ink-900:#0f172a;
 --ink-700:#334155;
 --ink-500:#64748b;
 --ink-300:#cbd5e1;
 --line:#e3e9f2;
 --bg:#f7f9fd;
 --card:#ffffff;
 --radius-lg:20px;
 --radius-md:14px;
 --radius-sm:10px;
 --shadow-sm:0 1px 2px rgba(15,23,42,.06),0 3px 10px rgba(15,23,42,.05);
 --shadow-md:0 8px 26px rgba(15,23,42,.08);
 --shadow-lg:0 18px 48px rgba(15,23,42,.13);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 background:var(--bg);
 color:var(--ink-900);
 line-height:1.72;
 font-size:16px;
}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
:focus-visible{outline:3px solid rgba(47,107,240,.55);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}

/* ============ 导航 ============ */
.site-header{
 position:sticky;top:0;z-index:80;
 background:var(--brand-900);
 border-bottom:1px solid rgba(255,255,255,.08);
 box-shadow:0 6px 24px rgba(6,18,38,.28);
}
.nav-inner{display:flex;align-items:center;gap:22px;height:72px}
.logo{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;font-size:19px;letter-spacing:.02em}
.logo-mark{
 width:36px;height:36px;border-radius:11px;
 background:linear-gradient(135deg,var(--gold-400),var(--gold-500));
 color:#12233d;display:grid;place-items:center;font-size:15px;font-weight:900;
 box-shadow:0 6px 16px rgba(217,156,43,.35);
}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
 padding:9px 17px;border-radius:999px;color:rgba(255,255,255,.76);
 font-size:15px;font-weight:500;transition:background .22s ease,color .22s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.09)}
.nav-link.is-active{color:#fff;background:rgba(255,255,255,.15)}
.nav-cta{
 margin-left:10px;padding:10px 21px;border-radius:999px;
 background:linear-gradient(135deg,var(--gold-400),var(--gold-500));
 color:#152741;font-weight:700;font-size:14.5px;
 box-shadow:0 8px 20px rgba(217,156,43,.32);
 transition:transform .22s ease,box-shadow .22s ease;
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(217,156,43,.45)}
.nav-toggle{
 display:none;margin-left:auto;width:42px;height:42px;border-radius:12px;
 background:rgba(255,255,255,.1);flex-direction:column;justify-content:center;
 align-items:center;gap:5px;transition:background .2s ease;
}
.nav-toggle:hover{background:rgba(255,255,255,.18)}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px}
.mobile-panel{display:none}
.mobile-panel.is-open{
 display:flex;flex-direction:column;gap:6px;
 padding:12px 20px 20px;background:var(--brand-800);
 border-top:1px solid rgba(255,255,255,.08);
}
.mobile-panel .nav-link{text-align:left}
.mobile-panel .nav-cta{margin:8px 0 0;text-align:center}

/* ============ 深色沉浸首屏 ============ */
.hero-dark{
 position:relative;overflow:hidden;
 padding:62px 0 70px;
 background:linear-gradient(160deg,#0b1b33 0%,#122a4d 52%,#0b1b33 100%);
 color:#e9eefb;
}
.hero-dark::before{
 content:"";position:absolute;inset:0;
 background:
  radial-gradient(620px 320px at 12% 6%,rgba(47,107,240,.30),transparent 62%),
  radial-gradient(520px 300px at 88% 18%,rgba(217,156,43,.22),transparent 64%);
 pointer-events:none;
}
.hero-dark .container{position:relative;z-index:2}
.hero-inner{display:grid;grid-template-columns:1.3fr .82fr;gap:32px;align-items:start}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.hero-badge{
 display:inline-flex;align-items:center;gap:7px;
 padding:6px 14px;border-radius:999px;font-size:13px;font-weight:700;
 background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);color:#dbe6fb;
}
.hero-badge.is-hot{
 background:rgba(232,179,82,.14);border-color:rgba(232,179,82,.45);color:#f2c878;
}
.hero-badge.is-hot i{color:#e8b352}
.hero-title{
 font-size:clamp(27px,3.6vw,43px);line-height:1.28;font-weight:800;
 letter-spacing:-.015em;color:#fff;margin-bottom:16px;
}
.hero-title em{
 font-style:normal;
 background:linear-gradient(120deg,#e8b352,#f4d79a);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{font-size:16.4px;color:rgba(233,238,251,.82);max-width:640px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:13px;margin-bottom:30px}
.hero-meta{display:flex;flex-wrap:wrap;gap:26px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14)}
.hero-meta-item{font-size:14px;color:rgba(233,238,251,.68)}
.hero-meta-item strong{display:block;font-size:22px;font-weight:800;color:#fff;letter-spacing:.01em}
.poster-card{
 background:linear-gradient(180deg,rgba(255,255,255,.10),rgba(255,255,255,.03));
 border:1px solid rgba(255,255,255,.16);
 border-radius:22px;padding:24px 22px 20px;
 box-shadow:0 24px 60px rgba(3,10,24,.45);
}
.poster-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.poster-head h2{font-size:16.5px;font-weight:800;color:#fff}
.poster-head span{font-size:12.5px;color:rgba(233,238,251,.6)}
.poster-list li{
 display:flex;align-items:center;gap:12px;
 padding:11px 0;border-bottom:1px dashed rgba(255,255,255,.14);font-size:14.6px;color:#dde6f8;
}
.poster-list li:last-child{border-bottom:0;padding-bottom:0}
.poster-rank{
 width:24px;height:24px;flex:0 0 24px;border-radius:8px;
 display:grid;place-items:center;font-size:12px;font-weight:800;
 background:rgba(255,255,255,.12);color:#cfdcf7;
}
.poster-list li:nth-child(1) .poster-rank{background:linear-gradient(135deg,#e8b352,#d99c2b);color:#152741}
.poster-list li:nth-child(2) .poster-rank{background:rgba(232,179,82,.32);color:#f6d79c}
.poster-list li:nth-child(3) .poster-rank{background:rgba(232,179,82,.20);color:#f0c675}
.poster-name{flex:1;line-height:1.5}
.poster-heat{font-size:12.5px;color:#f0c675;font-weight:700;white-space:nowrap}
.poster-foot{margin-top:18px;padding-top:16px;border-top:1px solid rgba(255,255,255,.14);font-size:13px;color:rgba(233,238,251,.66)}

/* ============ 通用板块 ============ */
.section{padding:72px 0}
.section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:780px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-title{
 font-size:clamp(23px,3vw,33px);line-height:1.34;font-weight:800;
 letter-spacing:-.01em;margin:16px 0 12px;
}
.section-desc{color:var(--ink-500);font-size:16px}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;padding:5px 15px;border-radius:999px;
 background:var(--brand-50);color:var(--brand-600);font-size:13px;font-weight:700;
 letter-spacing:.04em;border:1px solid #dce7fb;
}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--brand-500);display:block}
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:26px;box-shadow:var(--shadow-sm);
 transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#cfe0fb}
.card-icon{
 width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
 background:var(--brand-50);color:var(--brand-600);font-size:19px;font-weight:800;
 margin-bottom:16px;border:1px solid #dce7fb;
}
.card-title{font-size:17.5px;font-weight:800;margin-bottom:9px}
.card-text{font-size:14.8px;color:var(--ink-500);margin-bottom:12px}

/* 按钮 */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:9px;
 padding:12px 24px;border-radius:999px;font-weight:700;font-size:15px;
 transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease;
}
.btn-gold{background:linear-gradient(135deg,var(--gold-400),var(--gold-500));color:#152741;box-shadow:0 10px 24px rgba(217,156,43,.32)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(217,156,43,.44)}
.btn-ghost{background:rgba(255,255,255,.08);color:#e9eefb;border:1px solid rgba(255,255,255,.24)}
.btn-ghost:hover{background:rgba(255,255,255,.16)}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 10px 24px rgba(29,78,216,.26)}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-2px)}
.btn-outline{background:#fff;border:1px solid var(--line);color:var(--brand-700)}
.btn-outline:hover{border-color:#c3d6f8;color:var(--brand-600);box-shadow:var(--shadow-sm)}

/* 徽章 */
.tag{
 display:inline-flex;align-items:center;gap:6px;
 padding:4px 12px;border-radius:999px;font-size:12.6px;font-weight:700;
 background:var(--brand-50);color:var(--brand-700);border:1px solid #dce7fb;
}
.tag.gold{background:#fdf5e6;color:#a9741a;border-color:#f0dcb4}
.tag.muted{background:#f1f5fb;color:var(--ink-500);border-color:var(--line)}

/* 数据条 */
.stat-strip{
 display:grid;grid-template-columns:repeat(4,1fr);gap:0;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 box-shadow:var(--shadow-sm);overflow:hidden;
}
.stat-cell{padding:26px 24px;border-right:1px solid var(--line)}
.stat-cell:last-child{border-right:0}
.stat-value{font-size:30px;font-weight:800;color:var(--brand-700);letter-spacing:-.02em;line-height:1.2}
.stat-label{font-size:14.4px;font-weight:700;color:var(--ink-900);margin-top:6px}
.stat-note{font-size:13px;color:var(--ink-500);margin-top:4px}

/* 频道矩阵 */
.matrix-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.matrix-card{
 display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:24px 22px;box-shadow:var(--shadow-sm);height:100%;
 transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.matrix-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:#cfe0fb}
.matrix-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.matrix-icon{
 width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
 background:var(--brand-50);border:1px solid #dce7fb;color:var(--brand-600);font-size:17px;
}
.matrix-title{font-size:17px;font-weight:800;margin-bottom:8px}
.matrix-text{font-size:14.4px;color:var(--ink-500);margin-bottom:14px}
.matrix-link{font-size:13.6px;font-weight:700;color:var(--brand-600);display:inline-flex;align-items:center;gap:6px}
.matrix-link i{transition:transform .22s ease}
.matrix-card:hover .matrix-link i{transform:translateX(4px)}

/* 场景标签 */
.scene-wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:26px;align-items:start}
.scene-tags{display:flex;flex-wrap:wrap;gap:10px}
.scene-tag{
 padding:8px 15px;border-radius:999px;background:#fff;border:1px solid var(--line);
 font-size:14px;color:var(--ink-700);font-weight:600;box-shadow:var(--shadow-sm);
 transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.scene-tag:hover{border-color:#bcd3f7;color:var(--brand-600);transform:translateY(-2px)}
.scene-list li{
 display:flex;gap:13px;padding:14px 0;border-bottom:1px dashed var(--line);font-size:14.8px;color:var(--ink-700);
}
.scene-list li:last-child{border-bottom:0}
.scene-list i{color:var(--gold-500);margin-top:6px}

/* 内容列表 */
.feed-list{display:grid;gap:14px}
.feed-item{
 display:grid;grid-template-columns:76px 1fr auto;gap:18px;align-items:center;
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
 padding:18px 22px;box-shadow:var(--shadow-sm);
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.feed-item:hover{transform:translateX(4px);box-shadow:var(--shadow-md);border-color:#cfe0fb}
.feed-thumb{
 width:76px;height:60px;border-radius:12px;display:grid;place-items:center;
 background:linear-gradient(140deg,var(--brand-100),#f4f8ff);color:var(--brand-600);font-size:20px;
 border:1px solid #dce7fb;
}
.feed-title{font-size:16.4px;font-weight:800;margin-bottom:6px}
.feed-text{font-size:14.2px;color:var(--ink-500);margin-bottom:8px}
.feed-tags{display:flex;flex-wrap:wrap;gap:8px}
.feed-time{font-size:13px;color:var(--ink-500);white-space:nowrap}
.feed-more{margin-top:22px}

/* 治理清单 */
.govern-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.govern-item{
 display:flex;gap:14px;background:#fff;border:1px solid var(--line);
 border-radius:var(--radius-md);padding:20px;box-shadow:var(--shadow-sm);
}
.govern-item i{color:var(--brand-600);font-size:18px;margin-top:4px}
.govern-item h3{font-size:16px;font-weight:800;margin-bottom:6px}
.govern-item p{font-size:14.3px;color:var(--ink-500)}

/* 资料表格 */
.table-wrap{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 box-shadow:var(--shadow-sm);overflow-x:auto;
}
.data-table{width:100%;border-collapse:collapse;min-width:720px}
.data-table th{
 text-align:left;font-size:13.6px;font-weight:800;color:var(--brand-800);
 background:var(--brand-50);padding:15px 20px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.data-table td{
 padding:15px 20px;border-bottom:1px solid var(--line);font-size:14.4px;color:var(--ink-700);vertical-align:top;
}
.data-table tr:last-child td{border-bottom:0}
.data-table tbody tr:hover{background:#fafcff}
.data-table td strong{color:var(--ink-900)}

/* 推荐卡 */
.pick-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:24px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:12px;
 transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.pick-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#cfe0fb}
.pick-head{display:flex;align-items:center;gap:12px}
.avatar{
 width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
 background:linear-gradient(135deg,var(--brand-700),var(--brand-600));color:#fff;font-weight:800;font-size:16px;
}
.pick-name{font-size:16px;font-weight:800}
.pick-sub{font-size:13px;color:var(--ink-500)}
.pick-stat{display:flex;gap:18px;font-size:13px;color:var(--ink-500);border-top:1px dashed var(--line);padding-top:12px}
.pick-stat strong{color:var(--brand-700)}

/* FAQ */
.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto}
.faq-item{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
 box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#cfe0fb;box-shadow:var(--shadow-md)}
.faq-item summary{
 list-style:none;cursor:pointer;padding:19px 58px 19px 22px;position:relative;
 font-size:16.2px;font-weight:800;color:var(--ink-900);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
 content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
 position:absolute;right:22px;top:50%;transform:translateY(-50%);
 font-size:13px;color:var(--brand-600);transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(180deg)}
.faq-body{padding:0 22px 20px;font-size:14.8px;color:var(--ink-500)}

/* CTA 收口 */
.cta-band{
 background:linear-gradient(120deg,#1b3d6f 0%,#0b1b33 62%);
 border-radius:26px;padding:46px 44px;color:#e9eefb;
 display:grid;grid-template-columns:1.4fr auto;gap:26px;align-items:center;
 box-shadow:var(--shadow-lg);position:relative;overflow:hidden;
}
.cta-band::after{
 content:"";position:absolute;right:-70px;top:-70px;width:260px;height:260px;border-radius:50%;
 background:radial-gradient(circle,rgba(232,179,82,.30),transparent 68%);
}
.cta-band h2{font-size:clamp(21px,2.6vw,28px);font-weight:800;color:#fff;margin-bottom:10px;position:relative}
.cta-band p{font-size:15.2px;color:rgba(233,238,251,.82);max-width:640px;position:relative}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative}

/* 页脚 */
.site-footer{background:var(--brand-900);color:rgba(233,238,251,.76);padding:52px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:30px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;margin-bottom:14px}
.footer-desc{font-size:14.2px;color:rgba(233,238,251,.66);max-width:420px}
.footer-title{font-size:14.6px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-link{display:block;font-size:14.2px;color:rgba(233,238,251,.7);padding:5px 0;transition:color .2s ease,transform .2s ease}
.footer-link:hover{color:#fff;transform:translateX(3px)}
.footer-bottom{
 display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
 margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
 font-size:13.4px;color:rgba(233,238,251,.56);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
 .hero-inner{grid-template-columns:1fr;gap:26px}
 .scene-wrap{grid-template-columns:1fr}
 .matrix-grid{grid-template-columns:repeat(2,1fr)}
 .grid-4{grid-template-columns:repeat(2,1fr)}
 .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
}
@media (max-width:860px){
 .nav-links{display:none}
 .nav-toggle{display:flex}
 .grid-3{grid-template-columns:repeat(2,1fr)}
 .stat-strip{grid-template-columns:repeat(2,1fr)}
 .stat-cell:nth-child(2){border-right:0}
 .stat-cell:nth-child(1),.stat-cell:nth-child(2){border-bottom:1px solid var(--line)}
 .govern-list{grid-template-columns:1fr}
 .cta-band{grid-template-columns:1fr;padding:36px 28px}
 .section{padding:56px 0}
}
@media (max-width:768px){
 .footer-grid{grid-template-columns:1fr 1fr}
 .feed-item{grid-template-columns:64px 1fr;gap:14px}
 .feed-thumb{width:64px;height:54px}
 .feed-time{grid-column:2;justify-self:start}
}
@media (max-width:640px){
 .grid-2,.grid-3,.grid-4,.matrix-grid{grid-template-columns:1fr}
 .stat-strip{grid-template-columns:1fr}
 .stat-cell{border-right:0;border-bottom:1px solid var(--line)}
 .stat-cell:last-child{border-bottom:0}
 .hero-dark{padding:44px 0 52px}
 .hero-actions .btn{width:100%}
 .hero-meta{gap:18px}
 .footer-grid{grid-template-columns:1fr}
 .cta-band h2{font-size:21px}
}
@media (max-width:520px){
 body{font-size:15.4px}
 .container{padding:0 16px}
 .hero-title{font-size:26px}
 .section-title{font-size:22px}
 .card,.pick-card,.matrix-card{padding:20px}
 .feed-item{padding:15px 16px}
 .nav-inner{height:64px}
}