/* roulang page: index */
:root{
  --brand:#1a4f8b;
  --brand-dark:#123a68;
  --brand-light:#2f7cc4;
  --accent:#2b7cd3;
  --bg:#f4f7fb;
  --surface:#ffffff;
  --ink:#16273a;
  --ink-soft:#5a7085;
  --line:#e2eaf3;
  --radius:14px;
  --shadow-sm:0 1px 2px rgba(20,45,80,.05),0 6px 16px rgba(20,45,80,.06);
  --shadow-md:0 10px 30px rgba(20,45,80,.13);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15px;line-height:1.75;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand-light);outline-offset:2px}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:80;background:rgba(255,255,255,.95);
  backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-stuck{box-shadow:0 6px 22px rgba(20,45,80,.09)}
.nav-inner{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;color:var(--brand-dark);letter-spacing:.2px;white-space:nowrap;flex-shrink:0}
.brand-mark{
  width:32px;height:32px;display:grid;place-items:center;border-radius:9px;
  background:linear-gradient(135deg,var(--brand),var(--brand-light));
  color:#fff;font-size:15px;font-weight:800;box-shadow:0 4px 12px rgba(26,79,139,.28);
}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;min-height:38px;
  padding:8px 14px;font-size:14.5px;color:var(--ink-soft);border-radius:8px;
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--brand);background:#eef4fb}
.nav-link.is-active{color:var(--brand-dark);font-weight:700;background:#eef4fb}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:var(--brand);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:6px;flex-shrink:0}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:9px;
  background:#fff;cursor:pointer;padding:0;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-dark);margin:3px auto;transition:transform .2s,opacity .2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:42px;padding:10px 20px;border-radius:8px;font-size:14.5px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(26,79,139,.22)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 10px 24px rgba(26,79,139,.3)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:#fff;border-color:#cfddea;color:var(--brand-dark)}
.btn-outline:hover{border-color:var(--brand-light);color:var(--brand);transform:translateY(-1px);box-shadow:0 8px 18px rgba(20,45,80,.09)}
.btn-sm{min-height:36px;padding:7px 15px;font-size:13.5px}
.btn-ghost-light{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.35);color:#fff}
.btn-ghost-light:hover{background:rgba(255,255,255,.22);transform:translateY(-1px)}

/* ============ hero ============ */
.hero{position:relative;overflow:hidden;background:#0d2743;color:#fff}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.42}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(155deg,rgba(10,32,58,.94) 0%,rgba(18,58,104,.88) 52%,rgba(26,79,139,.84) 100%);
}
.hero-inner{position:relative;z-index:2;padding:74px 24px 68px;max-width:1180px;margin:0 auto}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:1.4px;
  color:#c4e0ff;background:rgba(255,255,255,.11);border:1px solid rgba(255,255,255,.22);
  padding:6px 14px;border-radius:999px;font-weight:600;
}
.hero h1{
  font-size:clamp(26px,3.5vw,40px);line-height:1.32;font-weight:800;
  margin:22px 0 18px;max-width:900px;letter-spacing:.4px;
}
.hero-lead{font-size:15.5px;line-height:1.9;color:rgba(255,255,255,.87);max-width:840px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tags li{
  font-size:13px;padding:5px 13px;border-radius:999px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#dbeafb;
}
.version-road{
  margin-top:42px;padding:26px 26px 24px;border-radius:var(--radius);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.17);
  backdrop-filter:blur(6px);
}
.version-head{display:flex;align-items:center;gap:10px;font-size:13px;letter-spacing:2px;color:#a9cdf5;font-weight:700;margin-bottom:20px}
.version-head::before{content:"";width:16px;height:2px;border-radius:2px;background:#6fb1ec;display:block}
.version-track{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.version-node{position:relative;padding-top:22px}
.version-node::before{
  content:"";position:absolute;top:0;left:0;width:11px;height:11px;border-radius:50%;
  background:#7fb8ee;border:2px solid #d7ebff;box-shadow:0 0 0 4px rgba(127,184,238,.16);
}
.version-node strong{display:block;font-size:15px;color:#fff;letter-spacing:.6px}
.version-node span{display:block;font-size:13px;color:rgba(255,255,255,.72);margin-top:4px;line-height:1.6}
.subscribe-form{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.subscribe-form input[type="email"]{
  flex:1 1 280px;min-height:44px;padding:0 16px;border-radius:8px;
  border:1px solid rgba(255,255,255,.26);background:rgba(255,255,255,.1);
  color:#fff;font-size:14px;transition:border-color .2s,background .2s;
}
.subscribe-form input[type="email"]::placeholder{color:rgba(255,255,255,.62)}
.subscribe-form input[type="email"]:focus{outline:none;border-color:#8cc2f7;background:rgba(255,255,255,.16)}
.subscribe-note{font-size:12.5px;color:rgba(255,255,255,.62);margin-top:10px}

/* ============ sections ============ */
.section{padding:72px 0}
.section-alt{background:var(--surface)}
.section-deep{background:#eef4fb}
.section-head{max-width:760px;margin-bottom:36px}
.section-title{
  font-size:clamp(21px,2.4vw,27px);font-weight:800;color:var(--brand-dark);
  letter-spacing:.4px;position:relative;padding-left:16px;line-height:1.4;
}
.section-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand-light),var(--brand));
}
.section-desc{margin-top:14px;color:var(--ink-soft);font-size:14.5px;line-height:1.88}

/* ============ grids & cards ============ */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#bcd6ef}
.card-body{padding:24px}
.card-title{font-size:17px;font-weight:700;color:var(--brand-dark);margin-bottom:9px;line-height:1.5}
.card-text{font-size:14px;color:var(--ink-soft);line-height:1.8}
.card-cover{width:100%;height:158px;object-fit:cover;background:#dbe6f2}
.tag{
  display:inline-block;font-size:12.5px;padding:3px 11px;border-radius:999px;
  background:#eef4fb;color:var(--brand);border:1px solid #d9e7f6;line-height:1.7;
}
.tag-soft{background:#f2f6fa;color:var(--ink-soft);border-color:#e4edf6}
.icon-box{
  width:44px;height:44px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,#e8f1fb,#d9e8f8);color:var(--brand);margin-bottom:16px;
  border:1px solid #d3e4f6;
}
.icon-box svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

/* 卖点三连 */
.point-card{display:flex;flex-direction:column;height:100%}
.point-card .card-body{display:flex;flex-direction:column;height:100%}
.point-card .card-text{flex:1}

/* 入口矩阵 */
.matrix-card{position:relative;display:block;padding:26px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);transition:transform .22s,box-shadow .22s,border-color .22s}
.matrix-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#bcd6ef}
.matrix-card h3{font-size:17px;font-weight:700;color:var(--brand-dark);margin:14px 0 8px}
.matrix-card p{font-size:14px;color:var(--ink-soft);line-height:1.78}
.matrix-more{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:13.5px;font-weight:600;color:var(--brand)}
.matrix-more svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s}
.matrix-card:hover .matrix-more svg{transform:translateX(4px)}

/* CMS 列表 */
.post-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:12.5px;color:#8296a8;margin-top:14px}
.post-card-link{display:flex;flex-direction:column;height:100%}
.post-card-link .card-body{display:flex;flex-direction:column;flex:1}
.post-card-link .card-text{
  flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-list{display:grid;gap:14px}
.news-item{
  display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);
  border-radius:12px;padding:18px 20px;box-shadow:var(--shadow-sm);
  transition:transform .2s,box-shadow .2s,border-color .2s;
}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#bcd6ef}
.news-item h3{font-size:15.5px;font-weight:700;color:var(--brand-dark);line-height:1.55}
.news-item p{font-size:13.5px;color:var(--ink-soft);line-height:1.78;margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-dot{width:8px;height:8px;border-radius:50%;background:var(--brand-light);margin-top:10px;flex-shrink:0;box-shadow:0 0 0 4px rgba(47,124,196,.13)}
.news-side{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);height:100%}
.news-side h3{font-size:16px;font-weight:700;color:var(--brand-dark);margin-bottom:14px}
.side-item{padding:12px 0;border-bottom:1px dashed var(--line);font-size:13.5px;color:var(--ink-soft);line-height:1.72}
.side-item:last-child{border-bottom:none;padding-bottom:0}
.side-item strong{display:block;color:var(--ink);font-size:14px;margin-bottom:4px;font-weight:600}
.empty-note{font-size:14px;color:var(--ink-soft);background:#fff;border:1px dashed #cfddea;border-radius:12px;padding:26px;text-align:center}

/* 数据指标 */
.metric-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;
  box-shadow:var(--shadow-sm);text-align:left;transition:transform .2s,box-shadow .2s,border-color .2s;
}
.metric-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#bcd6ef}
.metric-num{font-size:32px;font-weight:800;color:var(--brand);letter-spacing:.5px;line-height:1.2}
.metric-num small{font-size:15px;font-weight:700;margin-left:3px}
.metric-label{font-size:14px;font-weight:600;color:var(--ink);margin-top:8px}
.metric-desc{font-size:13px;color:var(--ink-soft);line-height:1.72;margin-top:6px}

/* 玩法速览 */
.step-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;counter-reset:step}
.step-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 24px 26px;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.step-no{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-light));color:#fff;
  font-weight:800;font-size:15px;margin-bottom:16px;box-shadow:0 6px 14px rgba(26,79,139,.24);
}
.step-card h3{font-size:16.5px;font-weight:700;color:var(--brand-dark);margin-bottom:8px}
.step-card p{font-size:14px;color:var(--ink-soft);line-height:1.8}

/* 保障条 */
.guard-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.guard-item{
  display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);
  border-radius:12px;padding:20px;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s,border-color .2s;
}
.guard-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#bcd6ef}
.guard-item h4{font-size:14.5px;font-weight:700;color:var(--brand-dark);margin-bottom:5px}
.guard-item p{font-size:13px;color:var(--ink-soft);line-height:1.72}
.guard-ico{
  width:36px;height:36px;flex-shrink:0;border-radius:10px;display:grid;place-items:center;
  background:#eef4fb;color:var(--brand);border:1px solid #d3e4f6;
}
.guard-ico svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* 口碑 */
.quote-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s,border-color .2s}
.quote-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#bcd6ef}
.quote-card p{font-size:14px;color:var(--ink-soft);line-height:1.85}
.quote-user{display:flex;align-items:center;gap:12px;margin-top:18px;padding-top:16px;border-top:1px dashed var(--line)}
.avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,#dbe9f8,#c2dcf5);color:var(--brand-dark);display:grid;place-items:center;font-weight:700;font-size:14px}
.quote-user strong{display:block;font-size:14px;color:var(--ink)}
.quote-user span{font-size:12.5px;color:#8296a8}

/* 规则要点 */
.rule-list{display:grid;gap:14px}
.rule-item{
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--brand-light);
  border-radius:12px;padding:20px 22px;box-shadow:var(--shadow-sm);
  transition:transform .2s,box-shadow .2s,border-color .2s;
}
.rule-item:hover{transform:translateX(3px);box-shadow:var(--shadow-md)}
.rule-item h3{font-size:15.5px;font-weight:700;color:var(--brand-dark);margin-bottom:7px}
.rule-item p{font-size:14px;color:var(--ink-soft);line-height:1.8}

/* 联系表单 */
.contact-wrap{
  display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:34px;box-shadow:var(--shadow-sm);
}
.form-field{margin-bottom:16px}
.form-field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink);margin-bottom:7px}
.form-field input,.form-field textarea{
  width:100%;border:1px solid #d5e2ee;border-radius:9px;padding:11px 14px;
  font-size:14px;background:#fbfdff;color:var(--ink);transition:border-color .2s,box-shadow .2s,background .2s;
}
.form-field input:focus,.form-field textarea:focus{
  outline:none;border-color:var(--brand-light);background:#fff;box-shadow:0 0 0 3px rgba(47,124,196,.14);
}
.form-field textarea{min-height:110px;resize:vertical}
.contact-info h3{font-size:17px;font-weight:700;color:var(--brand-dark);margin-bottom:14px}
.contact-info ul{display:grid;gap:14px}
.contact-info li{font-size:14px;color:var(--ink-soft);line-height:1.8;padding-left:16px;position:relative}
.contact-info li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--brand-light)}
.contact-info li strong{color:var(--ink);font-weight:700}

/* ============ footer ============ */
.site-footer{background:#0f2c4d;color:rgba(255,255,255,.72);padding:56px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:36px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.13)}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-brand .brand-mark{box-shadow:none}
.footer-about{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.66);max-width:340px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.6px}
.footer-col a,.footer-col span{display:block;font-size:13.5px;color:rgba(255,255,255,.68);padding:5px 0;transition:color .18s,transform .18s}
.footer-col a:hover{color:#a9cdf5;transform:translateX(3px)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;padding:20px 0;font-size:12.5px;color:rgba(255,255,255,.5)}
.footer-bottom a{color:rgba(255,255,255,.62)}
.footer-bottom a:hover{color:#a9cdf5}

/* ============ responsive ============ */
@media (max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .guard-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .version-track{grid-template-columns:repeat(2,1fr);gap:22px}
  .contact-wrap{grid-template-columns:1fr;padding:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-about{max-width:none}
}
@media (max-width:860px){
  .nav-menu{
    position:absolute;top:64px;left:0;right:0;display:none;flex-direction:column;
    align-items:stretch;gap:2px;background:#fff;border-bottom:1px solid var(--line);
    padding:12px 18px 18px;box-shadow:0 14px 26px rgba(20,45,80,.12);
  }
  .nav-menu.is-open{display:flex}
  .nav-link{padding:12px 14px;border-radius:9px;min-height:44px}
  .nav-link.is-active::after{display:none}
  .nav-toggle{display:grid}
  .nav-inner{gap:12px}
  .grid-3,.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step-row{grid-template-columns:1fr}
  .section{padding:56px 0}
  .hero-inner{padding:56px 24px 52px}
}
@media (max-width:640px){
  body{font-size:14.5px}
  .container{padding:0 18px}
  .grid-3,.grid-2,.grid-4,.guard-grid{grid-template-columns:1fr}
  .version-track{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .hero-actions .btn{flex:1 1 100%}
  .news-item{padding:16px}
  .card-body,.matrix-card{padding:20px}
  .contact-wrap{padding:22px}
  .section{padding:46px 0}
  .section-head{margin-bottom:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
  --brand:#1a4f8b;
  --brand-dark:#123a68;
  --brand-light:#2f7cc4;
  --accent:#2b7cd3;
  --bg:#f4f7fb;
  --surface:#ffffff;
  --ink:#16273a;
  --ink-soft:#5a7085;
  --line:#e2eaf3;
  --radius:14px;
  --shadow-sm:0 1px 2px rgba(20,45,80,.05),0 6px 16px rgba(20,45,80,.06);
  --shadow-md:0 10px 30px rgba(20,45,80,.13);
  --radius-sm:10px;
  --space:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15px;line-height:1.75;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand-light);outline-offset:3px;border-radius:4px}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}

/* ============ header / nav ============ */
.site-header{
  position:sticky;top:0;z-index:80;background:rgba(255,255,255,.95);
  backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-stuck{box-shadow:0 6px 22px rgba(20,45,80,.09)}
.nav-inner{display:flex;align-items:center;gap:24px;height:64px;position:relative}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;color:var(--brand-dark);letter-spacing:.2px;white-space:nowrap;flex-shrink:0}
.brand-mark{
  width:32px;height:32px;display:grid;place-items:center;border-radius:9px;
  background:linear-gradient(135deg,var(--brand),var(--brand-light));
  color:#fff;font-size:15px;font-weight:800;box-shadow:0 4px 12px rgba(26,79,139,.28);
}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;min-height:38px;
  padding:8px 14px;font-size:14.5px;color:var(--ink-soft);border-radius:8px;
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--brand);background:#eef4fb}
.nav-link.is-active{color:var(--brand-dark);font-weight:700;background:#eef4fb}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:var(--brand);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:6px;flex-shrink:0}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:9px;
  background:#fff;cursor:pointer;padding:0;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-dark);margin:3px auto;transition:transform .2s,opacity .2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:42px;padding:10px 20px;border-radius:8px;font-size:14.5px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(26,79,139,.22)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 10px 24px rgba(26,79,139,.3)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(26,79,139,.24)}
.btn-outline{background:#fff;border-color:#cfddea;color:var(--brand-dark)}
.btn-outline:hover{border-color:var(--brand-light);color:var(--brand);transform:translateY(-1px);box-shadow:0 8px 18px rgba(20,45,80,.09)}
.btn-ghost-light{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.35);color:#fff}
.btn-ghost-light:hover{background:rgba(255,255,255,.22);transform:translateY(-1px)}
.btn-sm{min-height:36px;padding:7px 15px;font-size:13.5px}

/* ============ article hero ============ */
.article-hero{position:relative;overflow:hidden;background:#0d2743;color:#fff}
.article-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.4}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(155deg,rgba(10,32,58,.95) 0%,rgba(18,58,104,.9) 55%,rgba(26,79,139,.86) 100%);
}
.article-hero-inner{position:relative;z-index:2;padding:52px 0 56px;max-width:960px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:#b9d4ef;margin-bottom:20px}
.crumbs a{color:#d7e8fa;transition:color .18s}
.crumbs a:hover{color:#fff;text-decoration:underline}
.crumbs .sep{opacity:.55}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:1.4px;
  color:#c4e0ff;background:rgba(255,255,255,.11);border:1px solid rgba(255,255,255,.22);
  padding:6px 14px;border-radius:999px;font-weight:600;
}
.article-title{
  font-size:clamp(24px,3.2vw,36px);line-height:1.4;font-weight:800;
  margin:20px 0 18px;letter-spacing:.4px;max-width:880px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13.5px;color:#c6dcf2}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.45)}
.meta-chip{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#dbeafb;font-size:12.5px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-tags li{
  font-size:13px;padding:5px 13px;border-radius:999px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#dbeafb;
}

/* ============ article shell ============ */
.article-shell{padding:56px 0 24px}
.article-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);padding:38px 42px;
}
.article-lead{
  font-size:15.5px;line-height:1.95;color:#33506d;
  background:#eef4fb;border-left:4px solid var(--brand-light);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  padding:18px 22px;margin-bottom:30px;
}
.article-body{font-size:16px;line-height:1.92;color:#22364b;word-break:break-word}
.article-body h2{
  font-size:22px;line-height:1.5;font-weight:800;color:var(--brand-dark);
  margin:36px 0 16px;padding-left:15px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand-light),var(--brand));
}
.article-body h3{font-size:18px;font-weight:700;color:var(--brand-dark);margin:28px 0 12px}
.article-body h4{font-size:16px;font-weight:700;color:var(--brand-dark);margin:22px 0 10px}
.article-body p{margin:0 0 17px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body ul li{list-style:disc;margin-bottom:9px}
.article-body ol li{list-style:decimal;margin-bottom:9px}
.article-body strong{color:#0f2c4d;font-weight:700}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-light)}
.article-body img{border-radius:var(--radius-sm);margin:22px 0;box-shadow:var(--shadow-sm)}
.article-body blockquote{
  margin:22px 0;padding:16px 22px;background:#f4f8fd;
  border-left:4px solid var(--brand-light);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:#33506d;font-size:15px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.article-body th{background:#eef4fb;color:var(--brand-dark);font-weight:700}
.article-body code{background:#eef4fb;padding:2px 6px;border-radius:5px;font-size:13.5px}
.article-body hr{border:none;border-top:1px solid var(--line);margin:30px 0}

/* ============ not found ============ */
.not-found{
  text-align:center;padding:52px 24px;border:1px dashed #cfddea;border-radius:var(--radius-sm);
  background:#f8fbff;
}
.not-found h2{font-size:20px;font-weight:800;color:var(--brand-dark);margin-bottom:10px}
.not-found p{color:var(--ink-soft);font-size:14.5px;margin-bottom:20px}

/* ============ sections ============ */
.section{padding:72px 0}
.section-tight{padding:56px 0}
.section-alt{background:var(--surface)}
.section-deep{background:#eef4fb}
.section-head{max-width:760px;margin-bottom:36px}
.section-title{
  font-size:clamp(21px,2.4vw,27px);font-weight:800;color:var(--brand-dark);
  letter-spacing:.4px;position:relative;padding-left:16px;line-height:1.4;
}
.section-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand-light),var(--brand));
}
.section-desc{margin-top:14px;color:var(--ink-soft);font-size:14.5px;line-height:1.88}

/* ============ grids / cards ============ */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);padding: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:#cddff0}
.card-icon{
  width:42px;height:42px;border-radius:11px;display:grid;place-items:center;
  background:#eef4fb;color:var(--brand);margin-bottom:16px;
}
.card h3{font-size:16.5px;font-weight:700;color:var(--brand-dark);margin-bottom:10px}
.card p{font-size:14.5px;line-height:1.85;color:var(--ink-soft)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{
  display:inline-flex;align-items:center;font-size:12.5px;padding:4px 11px;border-radius:999px;
  background:#eef4fb;color:var(--brand);border:1px solid #dbe8f6;font-weight:600;
}

/* ============ checklist panel ============ */
.panel{
  display:grid;grid-template-columns:1.05fr .95fr;gap:0;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow:hidden;
}
.panel-body{padding:34px 36px}
.panel-media{position:relative;min-height:320px;background:#e6eef8}
.panel-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.check-list{margin-top:20px;display:grid;gap:12px}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:#2c445c;line-height:1.8;
  padding-bottom:12px;border-bottom:1px dashed var(--line);
}
.check-list li:last-child{border-bottom:none;padding-bottom:0}
.check-mark{
  flex-shrink:0;width:22px;height:22px;border-radius:50%;background:#e6f0fb;color:var(--brand);
  display:grid;place-items:center;margin-top:3px;
}

/* ============ split feature ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.split-media{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-md);background:#e6eef8}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.split-text h3{font-size:19px;font-weight:800;color:var(--brand-dark);margin-bottom:14px}
.split-text p{font-size:15px;line-height:1.9;color:var(--ink-soft);margin-bottom:14px}
.mini-list{display:grid;gap:10px;margin-top:18px}
.mini-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:#2c445c}
.mini-list li::before{
  content:"";flex-shrink:0;width:6px;height:6px;border-radius:50%;background:var(--brand-light);margin-top:9px;
}

/* ============ timeline ============ */
.timeline{position:relative;margin-top:8px;padding-left:26px}
.timeline::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:#d8e5f3;border-radius:2px}
.timeline-item{position:relative;padding:0 0 26px 0}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{
  content:"";position:absolute;left:-26px;top:7px;width:12px;height:12px;border-radius:50%;
  background:#fff;border:3px solid var(--brand-light);box-shadow:0 0 0 3px rgba(47,124,196,.12);
}
.timeline-item h4{font-size:15.5px;font-weight:700;color:var(--brand-dark);margin-bottom:6px}
.timeline-item p{font-size:14.5px;color:var(--ink-soft);line-height:1.85}

/* ============ faq ============ */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);
  box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .2s,box-shadow .2s;
}
.faq-item:hover{border-color:#cddff0}
.faq-item[open]{border-color:#bcd6ee;box-shadow:var(--shadow-md)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:18px 22px;font-size:15.5px;font-weight:700;color:var(--brand-dark);
  display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex-shrink:0;width:24px;height:24px;border-radius:50%;
  display:grid;place-items:center;background:#eef4fb;color:var(--brand);font-weight:700;font-size:16px;
  transition:transform .2s ease,background .2s ease;
}
.faq-item[open] summary::after{content:"–";background:var(--brand);color:#fff}
.faq-answer{padding:0 22px 20px;font-size:14.5px;line-height:1.9;color:var(--ink-soft)}

/* ============ cta / subscribe ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:18px;color:#fff;
  background:linear-gradient(135deg,var(--brand-dark),var(--brand) 55%,var(--brand-light));
  box-shadow:var(--shadow-md);padding:44px 46px;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background:rgba(255,255,255,.08);
}
.cta-band h2{font-size:clamp(20px,2.4vw,26px);font-weight:800;margin-bottom:12px;letter-spacing:.3px}
.cta-band p{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.86);max-width:640px}
.subscribe-form{margin-top:24px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;position:relative;z-index:2}
.subscribe-form input[type="email"]{
  flex:1 1 300px;min-height:46px;padding:0 16px;border-radius:8px;
  border:1px solid rgba(255,255,255,.3);background:rgba(255,255,255,.13);
  color:#fff;font-size:14px;transition:border-color .2s,background .2s;
}
.subscribe-form input[type="email"]::placeholder{color:rgba(255,255,255,.68)}
.subscribe-form input[type="email"]:focus{outline:none;border-color:#a8d2f8;background:rgba(255,255,255,.2)}
.form-hint{margin-top:12px;font-size:13px;color:rgba(255,255,255,.72);position:relative;z-index:2}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;position:relative;z-index:2}

/* ============ footer ============ */
.site-footer{background:#0f2742;color:#c3d6e9;margin-top:0;padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;color:#fff;margin-bottom:14px}
.footer-about{font-size:14px;line-height:1.9;color:#9fb8d0;max-width:420px}
.footer-col h4{font-size:14.5px;color:#fff;margin-bottom:16px;font-weight:700;letter-spacing:.4px}
.footer-col a,.footer-col span{display:block;font-size:14px;color:#9fb8d0;margin-bottom:10px;transition:color .18s}
.footer-col a:hover{color:#fff}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding-top:20px;font-size:13px;color:#8aa5c0}

/* ============ responsive ============ */
@media (max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .panel{grid-template-columns:1fr}
  .panel-media{min-height:240px;order:-1}
  .split{grid-template-columns:1fr;gap:28px}
  .article-card{padding:32px 30px}
}
@media (max-width:900px){
  .nav-toggle{display:grid}
  .nav-menu{
    display:none;position:absolute;left:0;right:0;top:64px;flex-direction:column;align-items:stretch;
    gap:4px;background:#fff;border-bottom:1px solid var(--line);padding:12px 20px 18px;
    box-shadow:0 16px 30px rgba(20,45,80,.12);
  }
  .nav-menu.is-open{display:flex}
  .nav-link{width:100%;padding:11px 12px;min-height:44px}
  .nav-link.is-active::after{left:12px;right:auto;width:22px;bottom:6px}
  .nav-actions{margin-left:auto}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .section,.section-tight{padding:48px 0}
  .article-hero-inner{padding:38px 0 42px}
  .article-shell{padding:36px 0 12px}
  .article-card{padding:24px 20px}
  .article-body{font-size:15px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .cta-band{padding:32px 24px}
  .panel-body{padding:26px 22px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .brand-text{font-size:14.5px}
  .article-title{font-size:22px}
  .hero-tags{gap:8px}
  .hero-tags li{font-size:12px;padding:4px 10px}
  .btn{width:100%}
  .nav-actions .btn{width:auto}
  .subscribe-form input[type="email"]{flex:1 1 100%}
}

/* roulang page: category1 */
:root{
 --brand:#1a4f8b;
 --brand-dark:#123a68;
 --brand-light:#2f7cc4;
 --accent:#2b7cd3;
 --bg:#f4f7fb;
 --surface:#ffffff;
 --ink:#16273a;
 --ink-soft:#5a7085;
 --line:#e2eaf3;
 --radius:14px;
 --shadow-sm:0 1px 2px rgba(20,45,80,.05),0 6px 16px rgba(20,45,80,.06);
 --shadow-md:0 10px 30px rgba(20,45,80,.13);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
 margin:0;font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:15px;line-height:1.75;color:var(--ink);background:var(--bg);
 -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}

/* ============ header ============ */
.site-header{
 position:sticky;top:0;z-index:80;background:rgba(255,255,255,.95);
 backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line);
 transition:box-shadow .22s ease;
}
.site-header.is-stuck{box-shadow:0 6px 22px rgba(20,45,80,.09)}
.nav-inner{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;color:var(--brand-dark);letter-spacing:.2px;white-space:nowrap;flex-shrink:0}
.brand-mark{
 width:32px;height:32px;display:grid;place-items:center;border-radius:9px;
 background:linear-gradient(135deg,var(--brand),var(--brand-light));
 color:#fff;font-size:15px;font-weight:800;box-shadow:0 4px 12px rgba(26,79,139,.28);
}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
 position:relative;display:inline-flex;align-items:center;min-height:38px;
 padding:8px 14px;font-size:14.5px;color:var(--ink-soft);border-radius:8px;
 transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--brand);background:#eef4fb}
.nav-link:focus-visible{outline:2px solid var(--brand-light);outline-offset:2px}
.nav-link.is-active{color:var(--brand-dark);font-weight:700;background:#eef4fb}
.nav-link.is-active::after{
 content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:var(--brand);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:6px;flex-shrink:0}
.nav-toggle{
 display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:9px;
 background:#fff;cursor:pointer;padding:0;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-dark);margin:3px auto;transition:transform .2s,opacity .2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* ============ buttons ============ */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:42px;padding:10px 20px;border-radius:8px;font-size:14.5px;font-weight:600;
 border:1px solid transparent;cursor:pointer;white-space:nowrap;
 transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(26,79,139,.22)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 10px 24px rgba(26,79,139,.3)}
.btn-primary:active{transform:translateY(0)}
.btn-primary:focus-visible{outline:2px solid #8cc2f7;outline-offset:2px}
.btn-outline{background:#fff;border-color:#cfddea;color:var(--brand-dark)}
.btn-outline:hover{border-color:var(--brand-light);color:var(--brand);transform:translateY(-1px);box-shadow:0 8px 18px rgba(20,45,80,.09)}
.btn-outline:focus-visible{outline:2px solid var(--brand-light);outline-offset:2px}
.btn-sm{min-height:36px;padding:7px 15px;font-size:13.5px}
.btn-ghost-light{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.35);color:#fff}
.btn-ghost-light:hover{background:rgba(255,255,255,.22);transform:translateY(-1px)}
.btn-ghost-light:focus-visible{outline:2px solid #cfe4fb;outline-offset:2px}

/* ============ hero（分类页） ============ */
.cat-hero{position:relative;overflow:hidden;background:#0d2743;color:#fff}
.cat-hero-bg{position:absolute;inset:0;background-image:url('/assets/images/aa5eff13e6054271.webp');background-size:cover;background-position:center;opacity:.34}
.cat-hero::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(155deg,rgba(10,32,58,.95) 0%,rgba(18,58,104,.9) 54%,rgba(26,79,139,.85) 100%);
}
.cat-hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center;padding:58px 24px 62px;max-width:1180px;margin:0 auto}
.crumb{display:flex;align-items:center;gap:8px;font-size:12.5px;color:rgba(255,255,255,.7);margin-bottom:16px;letter-spacing:.4px}
.crumb a{color:rgba(255,255,255,.78)}
.crumb a:hover{color:#fff}
.crumb span.sep{opacity:.5}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:1.4px;
 color:#c4e0ff;background:rgba(255,255,255,.11);border:1px solid rgba(255,255,255,.22);
 padding:6px 14px;border-radius:999px;font-weight:600;
}
.cat-hero h1{
 font-size:clamp(25px,3.2vw,38px);line-height:1.34;font-weight:800;
 margin:20px 0 16px;letter-spacing:.4px;
}
.hero-lead{font-size:15.5px;line-height:1.9;color:rgba(255,255,255,.87)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-tags li{
 font-size:13px;padding:5px 13px;border-radius:999px;
 background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#dbeafb;
}
.hero-panel{
 background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.2);
 border-radius:16px;padding:16px;box-shadow:0 18px 40px rgba(4,18,34,.35);
}
.hero-panel img{border-radius:10px;aspect-ratio:16/10;object-fit:cover;width:100%}
.panel-body{padding:14px 4px 2px}
.panel-title{font-size:13px;letter-spacing:1.2px;color:#a9cdf2;font-weight:700;margin-bottom:10px}
.panel-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px dashed rgba(255,255,255,.18);font-size:13.5px}
.panel-row:last-child{border-bottom:0;padding-bottom:0}
.panel-row .k{color:rgba(255,255,255,.72)}
.panel-row .v{font-weight:700;color:#eaf4ff}
.dot-live{display:inline-block;width:7px;height:7px;border-radius:50%;background:#63d08d;margin-right:6px;box-shadow:0 0 0 3px rgba(99,208,141,.22)}

/* ============ sections ============ */
.section{padding:70px 0}
.section-alt{background:var(--surface)}
.section-deep{background:#eef4fb}
.section-tight{padding:56px 0}
.section-head{max-width:780px;margin-bottom:34px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-title{
 font-size:clamp(21px,2.4vw,27px);font-weight:800;color:var(--brand-dark);
 letter-spacing:.4px;position:relative;padding-left:16px;line-height:1.42;
}
.section-title::before{
 content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;
 background:linear-gradient(180deg,var(--brand-light),var(--brand));
}
.section-head.center .section-title{padding-left:0}
.section-head.center .section-title::before{display:none}
.section-desc{margin-top:14px;color:var(--ink-soft);font-size:14.5px;line-height:1.88}
.section-kicker{
 display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:700;letter-spacing:1.2px;
 color:var(--brand-light);margin-bottom:12px;
}
.section-kicker::before{content:"";width:16px;height:2px;border-radius:2px;background:var(--brand-light)}

/* ============ grids & cards ============ */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-sm);padding: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:#c9dcf0}
.card-icon{
 width:42px;height:42px;border-radius:11px;display:grid;place-items:center;
 background:#eaf2fb;color:var(--brand);margin-bottom:16px;
}
.card-icon svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:16.5px;font-weight:800;color:var(--brand-dark);margin-bottom:9px;line-height:1.5}
.card p{font-size:14px;color:var(--ink-soft);line-height:1.82}
.card-tag{
 display:inline-block;margin-top:14px;font-size:12px;font-weight:700;
 color:var(--brand);background:#eaf2fb;border-radius:999px;padding:3px 11px;
}

/* ============ metrics ============ */
.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.metric{
 background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px 20px;
 box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease;
}
.metric:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.metric-num{font-size:28px;font-weight:800;color:var(--brand);line-height:1.2;letter-spacing:.5px}
.metric-num small{font-size:14px;font-weight:700;margin-left:3px;color:var(--brand-light)}
.metric-label{margin-top:8px;font-size:13.5px;color:var(--ink-soft);line-height:1.7}

/* ============ steps ============ */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.step{
 position:relative;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:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9dcf0}
.step-num{
 width:36px;height:36px;border-radius:50%;display:grid;place-items:center;
 background:#eaf2fb;color:var(--brand);font-weight:800;font-size:14px;margin-bottom:14px;
}
.step h3{font-size:15.5px;font-weight:800;color:var(--brand-dark);margin-bottom:8px}
.step p{font-size:13.8px;color:var(--ink-soft);line-height:1.8}

/* ============ compare ============ */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.compare-col{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 padding:26px;box-shadow:var(--shadow-sm);
}
.compare-col.is-primary{border-color:#b9d4ef;box-shadow:var(--shadow-md)}
.compare-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:6px}
.compare-head h3{font-size:17px;font-weight:800;color:var(--brand-dark)}
.compare-badge{font-size:12px;font-weight:700;color:var(--brand);background:#eaf2fb;border-radius:999px;padding:3px 11px}
.compare-col.is-primary .compare-badge{background:var(--brand);color:#fff}
.compare-note{font-size:13.5px;color:var(--ink-soft);line-height:1.8;margin-bottom:14px}
.compare-list li{
 display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
 padding:11px 0;border-bottom:1px dashed var(--line);font-size:14px;
}
.compare-list li:last-child{border-bottom:0;padding-bottom:0}
.compare-list .k{color:var(--ink-soft);flex-shrink:0}
.compare-list .v{color:var(--brand-dark);font-weight:700;text-align:right}

/* ============ timeline ============ */
.timeline{position:relative;padding-left:28px;max-width:860px}
.timeline::before{
 content:"";position:absolute;left:6px;top:8px;bottom:8px;width:2px;border-radius:2px;
 background:linear-gradient(180deg,var(--brand-light),#cfe0f2);
}
.tl-item{position:relative;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
 content:"";position:absolute;left:-28px;top:7px;width:12px;height:12px;border-radius:50%;
 background:#fff;border:3px solid var(--brand);box-shadow:0 0 0 4px rgba(47,124,196,.1);
}
.tl-time{font-size:12.5px;font-weight:800;letter-spacing:.8px;color:var(--brand-light);margin-bottom:5px}
.tl-item h3{font-size:15.5px;font-weight:800;color:var(--brand-dark);margin-bottom:6px;line-height:1.5}
.tl-item p{font-size:14px;color:var(--ink-soft);line-height:1.82}

/* ============ news list ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.news-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-sm);overflow:hidden;height:100%;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9dcf0}
.news-card-link{display:flex;flex-direction:column;height:100%;padding:22px}
.news-title{font-size:15.5px;font-weight:800;color:var(--brand-dark);line-height:1.6;margin-bottom:10px}
.news-card:hover .news-title{color:var(--brand)}
.news-excerpt{font-size:13.8px;color:var(--ink-soft);line-height:1.8;flex:1}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);font-size:12.5px;color:#8fa3b8}
.tag{display:inline-block;font-size:12px;font-weight:700;color:var(--brand);background:#eaf2fb;border-radius:999px;padding:2px 10px}
.empty-note{
 background:#fff;border:1px dashed #c9dcf0;border-radius:12px;padding:26px;
 text-align:center;color:var(--ink-soft);font-size:14px;
}

/* ============ channel matrix ============ */
.channel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.channel{
 display:flex;flex-direction:column;gap:10px;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,border-color .2s ease,background .2s ease;
}
.channel:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9dcf0}
.channel.is-current{background:#f2f8ff;border-color:#b9d4ef}
.channel-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.channel h3{font-size:16px;font-weight:800;color:var(--brand-dark)}
.channel p{font-size:13.8px;color:var(--ink-soft);line-height:1.8}
.channel-state{font-size:12px;font-weight:700;color:#8fa3b8}
.channel.is-current .channel-state{color:var(--brand)}

/* ============ faq ============ */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
 background:#fff;border:1px solid var(--line);border-radius:12px;
 box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#b9d4ef;box-shadow:var(--shadow-md)}
.faq-item summary{
 cursor:pointer;list-style:none;padding:18px 52px 18px 22px;position:relative;
 font-size:15px;font-weight:700;color:var(--brand-dark);line-height:1.65;
 transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary:focus-visible{outline:2px solid var(--brand-light);outline-offset:-2px}
.faq-item summary::after{
 content:"";position:absolute;right:22px;top:24px;width:10px;height:10px;
 border-right:2px solid var(--brand-light);border-bottom:2px solid var(--brand-light);
 transform:rotate(45deg);transition:transform .22s ease;
}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-body{padding:0 22px 20px;font-size:14px;color:var(--ink-soft);line-height:1.88}

/* ============ cta / subscribe ============ */
.cta-band{
 background:linear-gradient(140deg,#123a68 0%,#1a4f8b 58%,#2f7cc4 100%);
 border-radius:18px;padding:40px;color:#fff;display:grid;
 grid-template-columns:1.05fr .95fr;gap:34px;align-items:center;
 box-shadow:0 20px 44px rgba(18,58,104,.28);
}
.cta-band h2{font-size:clamp(20px,2.2vw,25px);font-weight:800;line-height:1.45;margin-bottom:12px}
.cta-band p{font-size:14.5px;color:rgba(255,255,255,.86);line-height:1.88}
.subscribe-form{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.subscribe-form input[type="email"]{
 flex:1 1 230px;min-height:44px;padding:0 16px;border-radius:8px;
 border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.12);
 color:#fff;font-size:14px;transition:border-color .2s,background .2s;
}
.subscribe-form input[type="email"]::placeholder{color:rgba(255,255,255,.62)}
.subscribe-form input[type="email"]:focus{outline:none;border-color:#8cc2f7;background:rgba(255,255,255,.18)}
.form-hint{margin-top:12px;font-size:12.5px;color:rgba(255,255,255,.7);line-height:1.7}

/* ============ footer ============ */
.site-footer{background:#0f2946;color:#c9dcf0;margin-top:0;padding:56px 0 26px;border-top:1px solid rgba(255,255,255,.08)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:36px;padding-bottom:34px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:800;color:#fff;margin-bottom:16px}
.footer-about{font-size:13.8px;line-height:1.9;color:#9dbad8;max-width:420px}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:.5px}
.footer-col a,.footer-col span{display:block;font-size:13.5px;color:#9dbad8;margin-bottom:10px;transition:color .18s ease}
.footer-col a:hover{color:#fff}
.footer-bottom{
 display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
 padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
 font-size:12.8px;color:#7f9cbb;
}

/* ============ responsive ============ */
@media (max-width:1024px){
 .cat-hero-inner{grid-template-columns:1fr;gap:32px;padding:48px 24px 52px}
 .grid-4,.metrics,.steps{grid-template-columns:repeat(2,minmax(0,1fr))}
 .news-grid,.channel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .cta-band{grid-template-columns:1fr;padding:32px}
 .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:920px){
 .nav-toggle{display:grid}
 .nav-menu{
  display:none;position:absolute;top:64px;left:0;right:0;margin-left:0;
  background:#fff;border-bottom:1px solid var(--line);flex-direction:column;
  align-items:stretch;gap:4px;padding:12px 16px 16px;
  box-shadow:0 14px 28px rgba(20,45,80,.12);
 }
 .nav-menu.is-open{display:flex}
 .nav-link{min-height:44px;padding:11px 14px;font-size:15px}
 .nav-link.is-active::after{display:none}
}
@media (max-width:768px){
 .section{padding:52px 0}
 .section-tight{padding:44px 0}
 .grid-2,.grid-3,.grid-4,.metrics,.steps,.compare,.news-grid,.channel-grid{grid-template-columns:1fr}
 .hero-panel{margin-top:4px}
 .cta-band{padding:26px;border-radius:14px}
 .footer-grid{grid-template-columns:1fr;gap:26px}
 .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
 .container{padding:0 18px}
 .cat-hero-inner{padding:38px 18px 44px}
 .brand-text{font-size:14.5px}
 .hero-actions .btn{width:100%}
 .section-title{font-size:20px}
 .card,.step,.channel,.faq-item summary{padding-left:18px;padding-right:18px}
 .faq-item summary{padding-right:46px}
 .subscribe-form input[type="email"]{flex:1 1 100%}
 .subscribe-form .btn{width:100%}
}

/* roulang page: category2 */
:root{
 --brand:#1a4f8b;
 --brand-dark:#123a68;
 --brand-light:#2f7cc4;
 --accent:#2b7cd3;
 --bg:#f4f7fb;
 --surface:#ffffff;
 --ink:#16273a;
 --ink-soft:#5a7085;
 --line:#e2eaf3;
 --radius:14px;
 --shadow-sm:0 1px 2px rgba(20,45,80,.05),0 6px 16px rgba(20,45,80,.06);
 --shadow-md:0 10px 30px rgba(20,45,80,.13);
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
*,*::before,*::after{box-sizing:border-box}
body{
 margin:0;font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:15px;line-height:1.78;color:var(--ink);background:var(--bg);
 -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0;padding:0}
ul,ol{list-style:none}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(47,124,196,.45);outline-offset:2px;border-radius:6px}

/* ============ header ============ */
.site-header{
 position:sticky;top:0;z-index:80;background:rgba(255,255,255,.95);
 backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line);
 transition:box-shadow .22s ease;
}
.site-header.is-stuck{box-shadow:0 6px 22px rgba(20,45,80,.09)}
.nav-inner{display:flex;align-items:center;gap:24px;height:64px;position:relative}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;color:var(--brand-dark);letter-spacing:.2px;white-space:nowrap;flex-shrink:0}
.brand-mark{
 width:32px;height:32px;display:grid;place-items:center;border-radius:9px;
 background:linear-gradient(135deg,var(--brand),var(--brand-light));
 color:#fff;font-size:15px;font-weight:800;box-shadow:0 4px 12px rgba(26,79,139,.28);
}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
 position:relative;display:inline-flex;align-items:center;min-height:38px;
 padding:8px 14px;font-size:14.5px;color:var(--ink-soft);border-radius:8px;
 transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--brand);background:#eef4fb}
.nav-link.is-active{color:var(--brand-dark);font-weight:700;background:#eef4fb}
.nav-link.is-active::after{
 content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:var(--brand);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:6px;flex-shrink:0}
.nav-toggle{
 display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:9px;
 background:#fff;cursor:pointer;padding:0;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-dark);margin:3px auto;transition:transform .2s,opacity .2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* ============ buttons ============ */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:42px;padding:10px 20px;border-radius:8px;font-size:14.5px;font-weight:600;
 border:1px solid transparent;cursor:pointer;white-space:nowrap;
 transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(26,79,139,.22)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 10px 24px rgba(26,79,139,.3)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:#fff;border-color:#cfddea;color:var(--brand-dark)}
.btn-outline:hover{border-color:var(--brand-light);color:var(--brand);transform:translateY(-1px);box-shadow:0 8px 18px rgba(20,45,80,.09)}
.btn-sm{min-height:36px;padding:7px 15px;font-size:13.5px}
.btn-block{width:100%}
.btn-ghost-light{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.35);color:#fff}
.btn-ghost-light:hover{background:rgba(255,255,255,.22);transform:translateY(-1px)}

/* ============ hero ============ */
.hero{position:relative;overflow:hidden;background:#0d2743;color:#fff}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.42}
.hero::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(155deg,rgba(10,32,58,.94) 0%,rgba(18,58,104,.9) 52%,rgba(26,79,139,.85) 100%);
}
.hero-inner{position:relative;z-index:2;padding:44px 24px 66px;max-width:1180px;margin:0 auto}
.flash-bar{
 display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;
 background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);
 border-radius:999px;padding:8px 18px;font-size:13px;color:#cfe4fa;margin-bottom:26px;width:fit-content;
}
.flash-dot{width:8px;height:8px;border-radius:50%;background:#6fd08c;box-shadow:0 0 0 4px rgba(111,208,140,.18);flex-shrink:0}
.countdown{
 font-variant-numeric:tabular-nums;font-weight:800;color:#fff;letter-spacing:1.2px;
 background:rgba(255,255,255,.16);padding:2px 10px;border-radius:6px;
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.32fr) minmax(0,.88fr);gap:42px;align-items:start}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:1.4px;
 color:#c4e0ff;background:rgba(255,255,255,.11);border:1px solid rgba(255,255,255,.22);
 padding:6px 14px;border-radius:999px;font-weight:600;
}
.hero h1{
 font-size:clamp(25px,3.2vw,38px);line-height:1.34;font-weight:800;
 margin:20px 0 16px;letter-spacing:.4px;
}
.hero-lead{font-size:15.5px;line-height:1.92;color:rgba(255,255,255,.87);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-tags li{
 font-size:13px;padding:5px 13px;border-radius:999px;
 background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#dbeafb;
}
.hero-card{
 background:#fff;border-radius:var(--radius);padding:16px;color:var(--ink);
 box-shadow:0 24px 56px rgba(6,24,44,.32);border:1px solid rgba(255,255,255,.5);
}
.hero-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:10px}
.hero-card h3{font-size:17px;font-weight:800;color:var(--brand-dark);margin:14px 0 8px}
.hero-card .card-sub{font-size:13.5px;color:var(--ink-soft);line-height:1.8;margin-bottom:12px}
.hero-card ul{margin:0 0 16px}
.hero-card ul li{
 font-size:13.5px;color:var(--ink-soft);padding:7px 0 7px 20px;position:relative;
 border-bottom:1px dashed var(--line);
}
.hero-card ul li:last-child{border-bottom:0}
.hero-card ul li::before{
 content:"";position:absolute;left:2px;top:15px;width:7px;height:7px;border-radius:2px;
 background:var(--brand-light);
}
.hero-card ul li strong{color:var(--brand-dark)}

/* ============ sections ============ */
.section{padding:70px 0}
.section-alt{background:var(--surface)}
.section-deep{background:#eef4fb}
.section-head{max-width:780px;margin-bottom:34px}
.section-title{
 font-size:clamp(21px,2.4vw,27px);font-weight:800;color:var(--brand-dark);
 letter-spacing:.4px;position:relative;padding-left:16px;line-height:1.42;
}
.section-title::before{
 content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;
 background:linear-gradient(180deg,var(--brand-light),var(--brand));
}
.section-desc{margin-top:14px;color:var(--ink-soft);font-size:14.5px;line-height:1.9}

/* ============ 指标看板 ============ */
.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.metric{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:22px 20px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.metric:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#c9dcef}
.metric-num{font-size:30px;font-weight:800;color:var(--brand);line-height:1.2;letter-spacing:.5px}
.metric-num small{font-size:14px;font-weight:700;color:var(--ink-soft);margin-left:4px}
.metric-label{margin-top:8px;font-size:14px;font-weight:700;color:var(--ink)}
.metric-note{margin-top:6px;font-size:13px;color:var(--ink-soft);line-height:1.72}

/* ============ 规则矩阵卡片 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-sm);padding:22px;height:100%;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9dcef}
.card-icon{
 width:40px;height:40px;border-radius:10px;display:grid;place-items:center;
 background:#eaf2fb;color:var(--brand);margin-bottom:14px;
}
.card-icon svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:16.5px;font-weight:800;color:var(--brand-dark);margin-bottom:8px;line-height:1.5}
.card p{font-size:14px;color:var(--ink-soft);line-height:1.82}
.card .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{
 font-size:12.5px;padding:4px 10px;border-radius:999px;background:#eef4fb;
 color:var(--brand);border:1px solid #dae8f6;font-weight:600;
}

/* ============ 对照表 ============ */
.compare-wrap{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-sm);overflow:hidden;
}
.compare-table{width:100%;border-collapse:collapse;font-size:14px}
.compare-table thead th{
 background:#eaf2fb;color:var(--brand-dark);text-align:left;font-weight:800;
 padding:14px 18px;font-size:13.5px;letter-spacing:.4px;border-bottom:1px solid var(--line);
}
.compare-table tbody td{
 padding:14px 18px;border-bottom:1px solid var(--line);color:var(--ink-soft);line-height:1.72;vertical-align:top;
}
.compare-table tbody tr:last-child td{border-bottom:0}
.compare-table tbody tr:hover td{background:#f7fbff}
.compare-table td:first-child{color:var(--ink);font-weight:700;width:24%}
.wrong{color:#a5525a;font-weight:600}
.right{color:var(--brand);font-weight:600}

/* ============ 里程碑 ============ */
.timeline{position:relative;padding-left:26px;border-left:2px solid #d7e5f3}
.timeline-item{position:relative;padding:0 0 28px 22px}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{
 content:"";position:absolute;left:-33px;top:5px;width:14px;height:14px;border-radius:50%;
 background:#fff;border:3px solid var(--brand-light);box-shadow:0 0 0 4px #eaf2fb;
}
.timeline-date{font-size:12.5px;font-weight:800;letter-spacing:1px;color:var(--brand-light)}
.timeline-item h3{font-size:16px;font-weight:800;color:var(--brand-dark);margin:6px 0 6px}
.timeline-item p{font-size:14px;color:var(--ink-soft);line-height:1.82}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.news-item{
 display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:20px 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:#c9dcef}
.news-meta{display:flex;flex-wrap:wrap;gap:10px;font-size:12.5px;color:var(--ink-soft);margin-bottom:8px}
.news-meta .cat{color:var(--brand);font-weight:700;background:#eef4fb;padding:2px 9px;border-radius:999px;border:1px solid #dae8f6}
.news-item h3{font-size:16px;font-weight:800;color:var(--brand-dark);line-height:1.55;margin-bottom:8px}
.news-item p{font-size:13.5px;color:var(--ink-soft);line-height:1.78;
 display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.empty-note{
 background:var(--surface);border:1px dashed #cfddea;border-radius:var(--radius);
 padding:26px;text-align:center;color:var(--ink-soft);font-size:14px;
}

/* ============ 保障 ============ */
.assure-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.assure-item{
 display:flex;gap:16px;background:var(--surface);border:1px solid var(--line);
 border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease;
}
.assure-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.assure-item .num{
 flex-shrink:0;width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
 background:linear-gradient(135deg,var(--brand),var(--brand-light));color:#fff;font-weight:800;font-size:14px;
}
.assure-item h3{font-size:15.5px;font-weight:800;color:var(--brand-dark);margin-bottom:6px}
.assure-item p{font-size:13.5px;color:var(--ink-soft);line-height:1.8}

/* ============ 快速解答 + FAQ ============ */
.qa-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.qa-item{background:#eef4fb;border-radius:12px;padding:18px 20px;border:1px solid #dde9f5}
.qa-item h3{font-size:15px;font-weight:800;color:var(--brand-dark);margin-bottom:6px}
.qa-item p{font-size:13.5px;color:var(--ink-soft);line-height:1.8}
.faq-list{display:grid;gap:12px;max-width:960px}
.faq-item{
 background:var(--surface);border:1px solid var(--line);border-radius:12px;
 box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#c9dcef;box-shadow:var(--shadow-md)}
.faq-item summary{
 list-style:none;cursor:pointer;padding:16px 52px 16px 20px;position:relative;
 font-size:15px;font-weight:700;color:var(--brand-dark);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
 content:"";position:absolute;right:20px;top:50%;width:10px;height:10px;
 border-right:2px solid var(--brand-light);border-bottom:2px solid var(--brand-light);
 transform:translateY(-70%) rotate(45deg);transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq-item .faq-body{padding:0 20px 18px;font-size:14px;color:var(--ink-soft);line-height:1.85}

/* ============ 转化表单 ============ */
.cta-panel{
 position:relative;overflow:hidden;border-radius:18px;padding:44px 40px;color:#fff;
 background:linear-gradient(140deg,#123a68 0%,#1a4f8b 60%,#2f7cc4 100%);
 box-shadow:0 22px 50px rgba(18,58,104,.28);
}
.cta-panel::after{
 content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
 background:radial-gradient(circle,rgba(255,255,255,.16),rgba(255,255,255,0) 70%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:36px;align-items:center}
.cta-panel h2{font-size:clamp(20px,2.4vw,26px);font-weight:800;line-height:1.45;margin-bottom:12px}
.cta-panel p{font-size:14.5px;color:rgba(255,255,255,.86);line-height:1.9}
.subscribe-form{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.subscribe-form input[type="email"]{
 flex:1 1 200px;min-height:46px;padding:0 16px;border-radius:8px;
 border:1px solid rgba(255,255,255,.3);background:rgba(255,255,255,.12);
 color:#fff;font-size:14px;transition:border-color .2s,background .2s;
}
.subscribe-form input[type="email"]::placeholder{color:rgba(255,255,255,.62)}
.subscribe-form input[type="email"]:focus{outline:none;border-color:#8cc2f7;background:rgba(255,255,255,.18)}
.form-tip{margin-top:10px;font-size:12.5px;color:rgba(255,255,255,.68)}

/* ============ footer ============ */
.site-footer{background:#0f2338;color:#c7d7e8;padding:52px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:36px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;color:#fff;margin-bottom:14px}
.footer-about{font-size:13.5px;line-height:1.9;color:#9db4cc;max-width:420px}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;margin-bottom:14px;letter-spacing:.4px}
.footer-col a,.footer-col span{display:block;font-size:13.5px;color:#9db4cc;padding:5px 0;transition:color .18s ease,transform .18s ease}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding-top:20px;font-size:12.5px;color:#8aa2ba}

/* ============ 响应式 ============ */
@media (max-width:1024px){
 .hero-grid{grid-template-columns:1fr;gap:30px}
 .hero-card{max-width:520px}
 .metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
 .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
 .cta-inner{grid-template-columns:1fr;gap:24px}
 .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
 .nav-toggle{display:grid}
 .nav-menu{
  position:absolute;top:64px;left:0;right:0;background:#fff;
  flex-direction:column;align-items:stretch;gap:4px;padding:12px 16px 16px;
  border-bottom:1px solid var(--line);box-shadow:0 14px 28px rgba(20,45,80,.12);
  display:none;margin-left:0;
 }
 .nav-menu.is-open{display:flex}
 .nav-link{justify-content:flex-start;min-height:44px}
 .nav-link.is-active::after{left:14px;right:auto;width:20px}
 .nav-actions .btn-sm{padding:7px 12px;font-size:13px}
}
@media (max-width:768px){
 .container{padding:0 18px}
 .nav-inner{gap:12px}
 .brand-text{font-size:14.5px}
 .hero-inner{padding:32px 18px 52px}
 .section{padding:52px 0}
 .grid-2,.grid-3,.news-grid,.assure-list,.qa-grid{grid-template-columns:1fr}
 .compare-table thead{display:none}
 .compare-table,.compare-table tbody,.compare-table tr,.compare-table td{display:block;width:100%}
 .compare-table tbody tr{border-bottom:1px solid var(--line);padding:6px 0}
 .compare-table tbody tr:last-child{border-bottom:0}
 .compare-table tbody td{border-bottom:0;padding:8px 18px}
 .compare-table td:first-child{width:auto;font-size:14.5px;color:var(--brand-dark)}
 .cta-panel{padding:30px 22px}
 .footer-grid{grid-template-columns:1fr;gap:24px}
}
@media (max-width:520px){
 .metrics{grid-template-columns:1fr}
 .metric-num{font-size:26px}
 .hero h1{font-size:23px}
 .flash-bar{width:100%;justify-content:flex-start;border-radius:14px}
 .hero-actions .btn{width:100%}
 .brand-text{max-width:120px;overflow:hidden;text-overflow:ellipsis}
 .subscribe-form input[type="email"]{flex:1 1 100%}
 .subscribe-form .btn{width:100%}
 .footer-bottom{flex-direction:column;gap:6px}
}

/* roulang page: category3 */
*,*::before,*::after{box-sizing:border-box}
:root{
 --brand:#1a4f8b;
 --brand-dark:#123a68;
 --brand-light:#2f7cc4;
 --accent:#2b7cd3;
 --bg:#f4f7fb;
 --surface:#ffffff;
 --ink:#16273a;
 --ink-soft:#5a7085;
 --line:#e2eaf3;
 --radius:14px;
 --radius-sm:10px;
 --shadow-sm:0 1px 2px rgba(20,45,80,.05),0 6px 16px rgba(20,45,80,.06);
 --shadow-md:0 10px 30px rgba(20,45,80,.13);
 --shadow-lg:0 18px 44px rgba(20,45,80,.16);
 --space:24px;
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
.page-body{
 margin:0;
 font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:15px;line-height:1.75;color:var(--ink);background:var(--bg);
 -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(47,124,196,.55);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}

/* ============ header ============ */
.site-header{
 position:sticky;top:0;z-index:80;background:rgba(255,255,255,.95);
 backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line);
 transition:box-shadow .22s ease;
}
.site-header.is-stuck{box-shadow:0 6px 22px rgba(20,45,80,.09)}
.nav-inner{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;color:var(--brand-dark);letter-spacing:.2px;white-space:nowrap;flex-shrink:0}
.brand-mark{
 width:32px;height:32px;display:grid;place-items:center;border-radius:9px;
 background:linear-gradient(135deg,var(--brand),var(--brand-light));
 color:#fff;font-size:15px;font-weight:800;box-shadow:0 4px 12px rgba(26,79,139,.28);
}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
 position:relative;display:inline-flex;align-items:center;min-height:38px;
 padding:8px 14px;font-size:14.5px;color:var(--ink-soft);border-radius:8px;
 transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--brand);background:#eef4fb}
.nav-link.is-active{color:var(--brand-dark);font-weight:700;background:#eef4fb}
.nav-link.is-active::after{
 content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:var(--brand);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:6px;flex-shrink:0}
.nav-toggle{
 display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:9px;
 background:#fff;cursor:pointer;padding:0;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-dark);margin:3px auto;transition:transform .2s,opacity .2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* ============ buttons ============ */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 min-height:42px;padding:10px 20px;border-radius:8px;font-size:14.5px;font-weight:600;
 border:1px solid transparent;cursor:pointer;white-space:nowrap;
 transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(26,79,139,.22)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 10px 24px rgba(26,79,139,.3)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:#fff;border-color:#cfddea;color:var(--brand-dark)}
.btn-outline:hover{border-color:var(--brand-light);color:var(--brand);transform:translateY(-1px);box-shadow:0 8px 18px rgba(20,45,80,.09)}
.btn-sm{min-height:36px;padding:7px 15px;font-size:13.5px}
.btn-light{background:#fff;color:var(--brand-dark);box-shadow:0 8px 22px rgba(8,28,52,.22)}
.btn-light:hover{background:#f2f7fd;transform:translateY(-1px);box-shadow:0 12px 28px rgba(8,28,52,.28)}

/* ============ hero (斜切色块) ============ */
.hero{position:relative;overflow:hidden;background:linear-gradient(118deg,#0d2743 0%,#16437a 48%,#2f7cc4 100%);color:#fff}
.hero-media{
 position:absolute;top:0;right:0;width:56%;height:100%;
 background:url("/assets/images/aa5eff13e6054271.webp") center/cover no-repeat;
 clip-path:polygon(18% 0,100% 0,100% 100%,0 100%);
 opacity:.5;
}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(13,39,67,.96) 0%,rgba(13,39,67,.35) 55%,rgba(13,39,67,.12) 100%)}
.hero-inner{position:relative;z-index:2;padding:70px 24px 76px;max-width:1180px;margin:0 auto}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:1.4px;
 color:#c9e2ff;background:rgba(255,255,255,.11);border:1px solid rgba(255,255,255,.24);
 padding:6px 14px;border-radius:999px;font-weight:600;
}
.hero h1{
 font-size:clamp(26px,3.4vw,41px);line-height:1.32;font-weight:800;
 margin:22px 0 18px;max-width:820px;letter-spacing:.4px;
}
.hero-lead{font-size:15.5px;line-height:1.9;color:rgba(255,255,255,.88);max-width:700px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tags li{
 font-size:13px;padding:5px 13px;border-radius:999px;
 background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#dbeafb;
}
.hero-edge{
 height:52px;margin-top:-1px;
 background:var(--bg);
 clip-path:polygon(0 100%,100% 0,100% 100%);
}

/* ============ sections ============ */
.section{padding:72px 0;position:relative}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-deep{background:#eaf1f9}
.section-head{max-width:760px;margin-bottom:36px}
.section-head.is-center{margin-left:auto;margin-right:auto;text-align:center}
.section-title{
 font-size:clamp(21px,2.4vw,27px);font-weight:800;color:var(--brand-dark);
 letter-spacing:.4px;position:relative;padding-left:16px;line-height:1.42;
}
.section-title::before{
 content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;
 background:linear-gradient(180deg,var(--brand-light),var(--brand));
}
.section-head.is-center .section-title{padding-left:0}
.section-head.is-center .section-title::before{display:none}
.section-desc{margin-top:14px;color:var(--ink-soft);font-size:14.5px;line-height:1.88}
.kicker{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:1.6px;color:var(--brand-light);margin-bottom:10px}

/* ============ grids ============ */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}

/* ============ cards ============ */
.card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-sm);padding: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:#c9dcef}
.card-title{font-size:16.5px;font-weight:700;color:var(--brand-dark);margin-bottom:10px;line-height:1.5}
.card p{font-size:14.5px;color:var(--ink-soft);line-height:1.85}

/* 指标看板 */
.metric{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 22px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.metric::before{
 content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
 background:linear-gradient(180deg,var(--brand-light),var(--brand));
}
.metric:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#c9dcef}
.metric-num{font-size:30px;font-weight:800;color:var(--brand);line-height:1.2;letter-spacing:.5px}
.metric-num small{font-size:14px;font-weight:700;color:var(--brand-light);margin-left:3px}
.metric-label{font-size:14.5px;font-weight:700;color:var(--brand-dark);margin-top:8px}
.metric-note{font-size:13.5px;color:var(--ink-soft);line-height:1.8;margin-top:6px}

/* 图文卡 */
.media-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.media-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9dcef}
.media-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#dbe7f3}
.media-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.media-card:hover .media-thumb img{transform:scale(1.04)}
.media-thumb::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(180deg,rgba(13,39,67,0) 45%,rgba(13,39,67,.32) 100%);
}
.media-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.media-body h3{font-size:16.5px;font-weight:700;color:var(--brand-dark);line-height:1.5}
.media-body p{font-size:14.5px;color:var(--ink-soft);line-height:1.85}
.badge{
 display:inline-flex;align-items:center;align-self:flex-start;
 font-size:12px;font-weight:700;letter-spacing:.6px;
 padding:4px 10px;border-radius:999px;color:var(--brand);background:#e9f2fb;border:1px solid #cfe3f6;
}

/* 时间线流程 */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;position:relative}
.flow-step{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 22px;box-shadow:var(--shadow-sm);position:relative;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.flow-step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c9dcef}
.flow-idx{
 width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
 font-weight:800;font-size:14px;color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand-light));
 box-shadow:0 6px 14px rgba(26,79,139,.24);margin-bottom:14px;
}
.flow-step h3{font-size:15.5px;font-weight:700;color:var(--brand-dark);margin-bottom:8px}
.flow-step p{font-size:14px;color:var(--ink-soft);line-height:1.82}

/* 对比 */
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.compare-col{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:26px;box-shadow:var(--shadow-sm);
}
.compare-col.is-warn{border-top:4px solid #c98b2f}
.compare-col.is-good{border-top:4px solid var(--brand-light)}
.compare-col h3{font-size:17px;font-weight:800;color:var(--brand-dark);margin-bottom:16px}
.compare-list li{
 position:relative;padding-left:24px;font-size:14.5px;color:var(--ink-soft);
 line-height:1.85;margin-bottom:12px;
}
.compare-list li::before{
 content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:3px;
 background:#d9a35c;
}
.compare-col.is-good .compare-list li::before{background:var(--brand-light)}

/* 清单 */
.check-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center}
.check-list li{
 display:flex;gap:12px;align-items:flex-start;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);
 padding:14px 16px;margin-bottom:12px;box-shadow:var(--shadow-sm);
 transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.check-list li:hover{transform:translateX(3px);border-color:#c9dcef;box-shadow:var(--shadow-md)}
.check-list .tick{
 flex-shrink:0;width:22px;height:22px;border-radius:6px;display:grid;place-items:center;
 background:#e9f2fb;color:var(--brand);font-size:12px;font-weight:800;border:1px solid #cfe3f6;margin-top:2px;
}
.check-list strong{display:block;font-size:14.5px;color:var(--brand-dark);font-weight:700;margin-bottom:2px}
.check-list span{font-size:13.5px;color:var(--ink-soft);line-height:1.8}
.check-figure{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-md);border:1px solid var(--line)}
.check-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.check-figure figcaption{
 position:absolute;left:0;right:0;bottom:0;padding:16px 18px;
 background:linear-gradient(180deg,rgba(13,39,67,0),rgba(13,39,67,.86));
 color:#e6f0fb;font-size:13px;line-height:1.7;
}

/* FAQ */
.faq{display:grid;gap:14px;max-width:900px}
.faq-item{
 background:var(--surface);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[open]{border-color:#c9dcef;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(--brand-dark);display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
 content:"+";font-size:20px;font-weight:700;color:var(--brand-light);line-height:1;
 transition:transform .2s ease;flex-shrink:0;
}
.faq-item[open] summary::after{content:"–";transform:rotate(0)}
.faq-item summary:hover{background:#f6fafe}
.faq-body{padding:0 22px 20px;font-size:14.5px;color:var(--ink-soft);line-height:1.9}

/* CTA 条 */
.cta-band{
 position:relative;overflow:hidden;border-radius:18px;color:#fff;
 background:linear-gradient(115deg,#123a68 0%,#1a4f8b 55%,#2f7cc4 100%);
 padding:46px 42px;display:flex;flex-wrap:wrap;align-items:center;gap:28px;
 box-shadow:var(--shadow-lg);
}
.cta-band::after{
 content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
 background:rgba(255,255,255,.08);
}
.cta-text{flex:1 1 420px;position:relative;z-index:1}
.cta-text h2{font-size:clamp(20px,2.3vw,26px);font-weight:800;letter-spacing:.4px;margin-bottom:10px}
.cta-text p{font-size:14.5px;color:rgba(255,255,255,.86);line-height:1.85;max-width:620px}
.cta-band .btn{position:relative;z-index:1}

/* ============ footer ============ */
.site-footer{background:#0e2743;color:#b8cce0;padding:56px 0 0;border-top:4px solid var(--brand)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:36px;padding-bottom:36px}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:15.5px;color:#fff;margin-bottom:14px}
.footer-about{font-size:14px;line-height:1.9;color:#9db6cf;max-width:420px}
.footer-col h4{font-size:14.5px;color:#fff;font-weight:700;margin-bottom:14px;letter-spacing:.4px}
.footer-col a,.footer-col span{display:block;font-size:14px;color:#9db6cf;padding:5px 0;transition:color .18s ease,transform .18s ease}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-bottom{
 border-top:1px solid rgba(255,255,255,.12);padding:18px 0 22px;
 display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
 font-size:13px;color:#89a3bd;
}

/* ============ responsive ============ */
@media (max-width:1024px){
 .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
 .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
 .flow{grid-template-columns:repeat(2,minmax(0,1fr))}
 .check-grid{grid-template-columns:1fr;gap:26px}
 .hero-media{width:64%;opacity:.42}
}
@media (max-width:900px){
 .nav-toggle{display:grid}
 .nav-menu{
  position:absolute;top:64px;left:0;right:0;display:none;flex-direction:column;align-items:stretch;
  gap:4px;margin:0;padding:12px 16px 16px;background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 16px 30px rgba(20,45,80,.12);
 }
 .nav-menu.is-open{display:flex}
 .nav-link{min-height:44px;justify-content:flex-start;padding:10px 12px}
 .nav-link.is-active::after{display:none}
 .nav-actions{margin-left:auto}
 .hero-inner{padding:54px 24px 58px}
 .hero-media{width:100%;clip-path:none;opacity:.24}
 .section{padding:56px 0}
 .cta-band{padding:34px 26px}
}
@media (max-width:768px){
 .container{padding:0 18px}
 .grid-2,.grid-3,.grid-4,.flow,.compare{grid-template-columns:1fr}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
 .footer-about{max-width:none}
 .nav-actions .btn-sm{padding:7px 12px;font-size:13px}
}
@media (max-width:520px){
 .brand-text{font-size:14.5px;max-width:150px;overflow:hidden;text-overflow:ellipsis}
 .nav-actions .btn-sm{display:none}
 .hero h1{font-size:25px}
 .hero-lead{font-size:14.5px}
 .hero-tags li{font-size:12.5px}
 .section{padding:44px 0}
 .card,.metric,.flow-step,.compare-col{padding:20px 18px}
 .footer-grid{grid-template-columns:1fr}
 .footer-bottom{flex-direction:column}
 .cta-band{border-radius:14px;padding:28px 20px}
 .check-list li{padding:12px 14px}
}