/* roulang page: index */
:root{
  --brand:#1a4fa0;
  --brand-dark:#0f3568;
  --brand-light:#e8f0fd;
  --accent:#2f7cf6;
  --ink:#14213d;
  --muted:#5b6b86;
  --line:#dde5f1;
  --bg:#f5f8fd;
  --card:#ffffff;
  --radius:16px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(16,38,74,.06),0 4px 14px rgba(16,38,74,.05);
  --shadow-md:0 12px 32px rgba(16,38,74,.10);
  --maxw:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.72;
  font-size:16px;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700;color:var(--ink)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:18px;height:74px}
.brand{display:flex;align-items:center;gap:11px;min-width:0}
.brand-mark{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;display:grid;place-items:center;font-weight:700;font-size:17px;flex:0 0 auto;letter-spacing:1px}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.3px;white-space:nowrap}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:.6px}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{padding:9px 15px;border-radius:10px;font-size:15px;color:#33456a;transition:background .2s,color .2s;white-space:nowrap}
.nav-link:hover{background:var(--brand-light);color:var(--brand)}
.nav-link.active{color:var(--brand);font-weight:600;background:var(--brand-light)}
.nav-cta{display:flex;align-items:center;gap:10px;margin-left:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;border-radius:11px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s,box-shadow .18s,background .18s,color .18s,border-color .18s;white-space:nowrap;text-align:center}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(26,79,160,.22)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 12px 26px rgba(26,79,160,.28)}
.btn-ghost{background:#fff;color:var(--brand);border-color:#c6d8f2}
.btn-ghost:hover{background:var(--brand-light);border-color:var(--brand)}
.btn-light{background:#fff;color:var(--brand-dark)}
.btn-light:hover{background:#eaf2ff;transform:translateY(-1px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline-light:hover{background:rgba(255,255,255,.14)}
.btn-block{width:100%}
.btn:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid rgba(47,124,246,.45);outline-offset:2px}

/* hero */
.hero{background:linear-gradient(158deg,#0b1f3a 0%,#123358 56%,#1a4fa0 128%);color:#eaf1fb;padding:66px 0 84px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-140px;top:-150px;width:460px;height:460px;border-radius:50%;background:radial-gradient(circle,rgba(47,124,246,.38),transparent 66%);pointer-events:none}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:48px;align-items:start;position:relative;z-index:1}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;padding:6px 13px;border-radius:999px;background:var(--brand-light);color:var(--brand)}
.tag-light{background:rgba(255,255,255,.14);color:#cfe1ff;border:1px solid rgba(255,255,255,.22)}
.hero h1{font-size:clamp(26px,3.2vw,40px);line-height:1.32;color:#fff;margin:16px 0 16px;letter-spacing:.3px}
.hero-lead{font-size:15.5px;color:#c2d3ea;line-height:1.85;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;font-size:14px;color:#a9c0dd}
.hero-points li{display:flex;align-items:center;gap:7px}
.hero-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:#5fa2ff;flex:0 0 auto}
.hero-panel{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:18px;padding:22px 22px 12px;box-shadow:0 22px 52px rgba(4,16,34,.36)}
.panel-head{display:flex;justify-content:space-between;align-items:center;gap:10px;padding-bottom:14px;border-bottom:1px dashed rgba(255,255,255,.22)}
.panel-head h2{font-size:15px;color:#fff;font-weight:700}
.panel-badge{font-size:12px;color:#9fc4f5;background:rgba(95,162,255,.16);border:1px solid rgba(95,162,255,.3);padding:3px 9px;border-radius:999px;white-space:nowrap}
.rank-item{display:flex;gap:13px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.09)}
.rank-item:last-child{border-bottom:0}
.rank-no{font-size:13px;font-weight:700;color:#8fc0ff;width:24px;flex:0 0 auto;padding-top:3px}
.rank-body{min-width:0}
.rank-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:3px}
.rank-desc{font-size:13px;color:#b3c7e2;line-height:1.6}

/* stat strip */
.stat-strip{margin-top:-42px;position:relative;z-index:5}
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:var(--shadow-md)}
.stat-item{min-width:0;padding-left:16px;border-left:3px solid #dbe7f8}
.stat-label{font-size:13px;color:var(--muted);margin-bottom:4px}
.stat-value{font-size:15.5px;font-weight:700;color:var(--brand-dark);line-height:1.5}

/* sections */
.sec{padding:66px 0}
.sec-alt{background:#fff}
.sec-head{max-width:780px;margin-bottom:36px}
.sec-title{font-size:clamp(21px,2.4vw,30px);margin:12px 0 12px}
.sec-desc{color:var(--muted);font-size:15px}
.grid-2,.grid-3,.grid-4{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.grid-2>*,.grid-3>*,.grid-4>*{min-width:0}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s,border-color .2s;min-width:0}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#c9dbf5}
.card-icon{width:44px;height:44px;border-radius:13px;background:var(--brand-light);color:var(--brand);display:grid;place-items:center;font-size:17px;font-weight:700;margin-bottom:15px}
.card h3{font-size:17px;margin-bottom:8px}
.card p{color:var(--muted);font-size:14.5px;line-height:1.75}
.card-num{font-size:12.5px;font-weight:700;color:var(--accent);letter-spacing:1px;margin-bottom:8px;display:block}

/* steps */
.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 18px;box-shadow:var(--shadow-sm);min-width:0;transition:border-color .2s,transform .2s}
.step:hover{border-color:#bdd4f2;transform:translateY(-2px)}
.step-no{width:30px;height:30px;border-radius:9px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:14px;font-weight:700;margin-bottom:12px}
.step h3{font-size:15.5px;margin-bottom:7px}
.step p{font-size:13.8px;color:var(--muted);line-height:1.7}

/* stage */
.stage{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:40px;align-items:center}
.mock{background:#0c1f38;border-radius:18px;padding:16px;box-shadow:0 26px 54px rgba(9,26,50,.3);border:1px solid rgba(255,255,255,.09)}
.mock-bar{display:flex;align-items:center;gap:6px;margin-bottom:14px}
.mock-dot{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.24)}
.mock-url{margin-left:8px;height:16px;flex:1;border-radius:5px;background:rgba(255,255,255,.08)}
.mock-body{background:#0f2743;border-radius:12px;padding:16px;display:grid;gap:10px}
.mock-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:2px}
.mock-title{font-size:13px;color:#dbe9ff;font-weight:600}
.mock-chip{font-size:11px;color:#8fc0ff;background:rgba(95,162,255,.16);border-radius:6px;padding:2px 8px}
.mock-line{height:11px;border-radius:6px;background:rgba(255,255,255,.12)}
.mock-line.w70{width:70%}
.mock-line.w50{width:50%}
.mock-line.w85{width:85%}
.mock-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.mock-tile{height:52px;border-radius:9px;background:rgba(95,162,255,.16);border:1px solid rgba(95,162,255,.22)}
.stage-list li{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid var(--line);min-width:0}
.stage-list li:last-child{border-bottom:0}
.stage-list .dot{width:8px;height:8px;border-radius:50%;background:var(--brand);margin-top:9px;flex:0 0 auto}
.stage-list h3{font-size:15.5px;margin-bottom:4px}
.stage-list p{font-size:14px;color:var(--muted)}

/* compare */
.compare-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;min-width:0;transition:transform .2s,box-shadow .2s,border-color .2s}
.compare-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#c9dbf5}
.compare-card.featured{border-color:var(--brand);box-shadow:0 16px 40px rgba(26,79,160,.14)}
.compare-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
.compare-card h3{font-size:18px}
.compare-note{color:var(--muted);font-size:14px;margin-bottom:16px}
.compare-list{display:grid;gap:11px;margin-top:auto}
.compare-list li{display:flex;gap:9px;font-size:14px;color:#33456a;line-height:1.65;min-width:0}
.compare-list li span.k{color:var(--muted);flex:0 0 68px}
.chip{display:inline-block;font-size:12px;font-weight:600;color:var(--brand);background:var(--brand-light);border-radius:999px;padding:4px 11px;white-space:nowrap}

/* risk bar */
.risk-bar{background:#fff8ea;border:1px solid #f2d9a6;border-radius:14px;padding:20px 24px;display:flex;gap:14px;align-items:flex-start}
.risk-icon{width:32px;height:32px;border-radius:10px;background:#f7c66a;color:#7a4a00;display:grid;place-items:center;font-weight:700;flex:0 0 auto;font-size:15px}
.risk-bar h3{font-size:15.5px;margin-bottom:5px;color:#6d4300}
.risk-bar p{font-size:14px;color:#7d5a1c;line-height:1.75}

/* entry matrix */
.entry-tile{display:flex;flex-direction:column;justify-content:space-between;gap:14px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:var(--shadow-sm);min-width:0;transition:transform .2s,box-shadow .2s,border-color .2s}
.entry-tile:hover{transform:translateY(-3px);border-color:#bdd4f2;box-shadow:var(--shadow-md)}
.entry-tile h3{font-size:16px;margin-bottom:6px}
.entry-tile p{font-size:13.8px;color:var(--muted);line-height:1.7}
.entry-link{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.entry-link::after{content:"›";font-size:17px;line-height:1}
.entry-link:hover{color:var(--brand-dark)}

/* news */
.news-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:26px;align-items:start}
.news-item{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 24px;box-shadow:var(--shadow-sm);margin-bottom:16px;transition:transform .2s,box-shadow .2s,border-color .2s;min-width:0}
.news-item:hover{transform:translateY(-2px);border-color:#c9dbf5;box-shadow:var(--shadow-md)}
.news-meta{display:flex;align-items:center;gap:12px;margin-bottom:10px;flex-wrap:wrap}
.news-date{font-size:12.5px;color:var(--muted)}
.news-item h3{font-size:17px;margin-bottom:8px;line-height:1.55}
.news-item p{font-size:14px;color:var(--muted);line-height:1.75}
.news-more{display:inline-block;margin-top:12px;font-size:13.5px;font-weight:600;color:var(--brand)}
.news-empty{color:var(--muted);font-size:14.5px;background:#fff;border:1px dashed var(--line);border-radius:14px;padding:26px;text-align:center}
.side-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:var(--shadow-sm);margin-bottom:16px}
.side-card h3{font-size:16px;margin-bottom:14px}
.side-card p{font-size:14px;color:var(--muted);line-height:1.75;margin-bottom:14px}
.side-list li{border-bottom:1px dashed var(--line);padding:10px 0;min-width:0}
.side-list li:last-child{border-bottom:0}
.side-list a{font-size:14.2px;color:#33456a;line-height:1.65;display:block;transition:color .2s}
.side-list a:hover{color:var(--brand)}
.side-card-soft{background:linear-gradient(160deg,#eef4ff,#ffffff);border-color:#d3e3fa}

/* download */
.download-wrap{background:linear-gradient(140deg,#0c2340,#164a8a);border-radius:20px;padding:44px 40px;color:#e6eefb;box-shadow:0 26px 56px rgba(9,32,64,.28)}
.download-head{max-width:680px;margin-bottom:28px}
.download-head h2{color:#fff;font-size:clamp(20px,2.3vw,28px);margin-bottom:12px}
.download-head p{color:#bcd0ea;font-size:14.8px;line-height:1.8}
.download-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.dl-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:14px;padding:22px;display:flex;flex-direction:column;gap:12px;min-width:0;transition:background .2s,border-color .2s,transform .2s}
.dl-card:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.34);transform:translateY(-2px)}
.dl-name{font-size:16px;font-weight:700;color:#fff}
.dl-desc{font-size:13.5px;color:#bcd0ea;line-height:1.7}
.dl-card .btn{margin-top:auto}

/* faq */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--shadow-sm);transition:border-color .2s}
.faq-item:hover{border-color:#c9dbf5}
.faq-item summary{cursor:pointer;padding:18px 22px;font-weight:600;font-size:15.5px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:14px;color:var(--ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:19px;color:var(--brand);flex:0 0 auto;line-height:1}
.faq-item[open] summary::after{content:"−"}
.faq-item p{padding:0 22px 20px;font-size:14.4px;color:var(--muted);line-height:1.8}

/* final cta */
.final-cta{background:linear-gradient(135deg,#123358,#1a4fa0);border-radius:20px;padding:44px 40px;color:#e8f1ff;display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);gap:32px;align-items:center}
.final-cta h2{color:#fff;font-size:clamp(20px,2.3vw,28px);margin-bottom:12px}
.final-cta p{font-size:14.8px;color:#c4d6ee;line-height:1.8}
.final-actions{display:flex;flex-direction:column;gap:12px}

/* footer */
.site-footer{background:#08192f;color:#b6c6dd;padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:34px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.footer-brand .brand-mark{background:linear-gradient(135deg,#2f7cf6,#5fa2ff)}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:#8fa6c2}
.footer-desc{font-size:14px;color:#9db2cd;line-height:1.85;max-width:420px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px}
.footer-col a{display:block;padding:5px 0;color:#a9bdd6;font-size:14px;transition:color .2s}
.footer-col a:hover{color:#7fb3ff}
.friend-links{margin-top:36px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1)}
.friend-links h4{color:#fff;font-size:15px;margin-bottom:14px}
.friend-list{display:flex;flex-wrap:wrap;gap:10px 20px}
.friend-list a{font-size:13.5px;color:#9db4d1;transition:color .2s}
.friend-list a:hover{color:#7fb3ff}
.footer-bottom{margin-top:26px;padding-top:18px;border-top:1px solid rgba(255,255,255,.08);font-size:13px;color:#8296b0;display:flex;flex-wrap:wrap;gap:8px 22px;justify-content:space-between}

/* responsive */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero{padding:52px 0 78px}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3,.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(3,minmax(0,1fr))}
  .stage{grid-template-columns:1fr;gap:30px}
  .news-grid{grid-template-columns:1fr}
  .final-cta{grid-template-columns:1fr;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .download-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .nav-inner{height:auto;flex-wrap:wrap;padding:12px 0;gap:10px}
  .nav-menu{order:3;width:100%;margin-left:0;overflow-x:auto;padding-bottom:4px;scrollbar-width:none}
  .nav-menu::-webkit-scrollbar{display:none}
  .nav-cta{order:2;margin-left:auto}
  .nav-link{font-size:14.5px;padding:8px 12px}
  .btn{padding:10px 16px;font-size:14.5px}
}
@media (max-width:768px){
  .sec{padding:52px 0}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .download-wrap{padding:32px 22px}
  .download-grid{grid-template-columns:1fr}
  .final-cta{padding:32px 22px}
  .risk-bar{flex-direction:row;padding:18px}
  .footer-grid{grid-template-columns:1fr}
  .hero h1{font-size:25px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .steps{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr;gap:14px;padding:20px}
  .stat-item{border-left:0;padding-left:0;border-top:3px solid #dbe7f8;padding-top:12px}
  .stat-item:first-child{border-top:0;padding-top:0}
  .hero-actions .btn{width:100%}
  .brand-name{font-size:15px}
  .fp{font-size:14px}
  .news-item{padding:18px}
  .faq-item summary{padding:16px 18px;font-size:15px}
  .faq-item p{padding:0 18px 18px}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category1 */
:root{
  --brand:#1a4fa0;
  --brand-dark:#0f3568;
  --brand-light:#e8f0fd;
  --accent:#2f7cf6;
  --ink:#14213d;
  --muted:#5b6b86;
  --line:#dde5f1;
  --bg:#f5f8fd;
  --card:#ffffff;
  --radius:16px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(16,38,74,.06),0 4px 14px rgba(16,38,74,.05);
  --shadow-md:0 12px 32px rgba(16,38,74,.10);
  --maxw:1180px;
}
*,*::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","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.72;
  font-size:16px;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input{font:inherit}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:18px;height:74px}
.brand{display:flex;align-items:center;gap:11px;min-width:0}
.brand-mark{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;display:grid;place-items:center;font-weight:700;font-size:17px;flex:0 0 auto;letter-spacing:1px}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.3px;white-space:nowrap}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:.6px}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{padding:9px 15px;border-radius:10px;font-size:15px;color:#33456a;transition:background .2s,color .2s;white-space:nowrap}
.nav-link:hover{background:var(--brand-light);color:var(--brand)}
.nav-link.active{color:var(--brand);font-weight:600;background:var(--brand-light)}
.nav-cta{display:flex;align-items:center;gap:10px;margin-left:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;border-radius:11px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s,box-shadow .18s,background .18s,color .18s,border-color .18s;white-space:nowrap;text-align:center}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(26,79,160,.22)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 12px 26px rgba(26,79,160,.28)}
.btn-ghost{background:#fff;color:var(--brand);border-color:#c6d8f2}
.btn-ghost:hover{background:var(--brand-light);border-color:var(--brand)}
.btn-light{background:#fff;color:var(--brand-dark)}
.btn-light:hover{background:#eaf2ff;transform:translateY(-1px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline-light:hover{background:rgba(255,255,255,.14)}
.btn:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid rgba(47,124,246,.45);outline-offset:2px}

/* category hero */
.cat-hero{background:linear-gradient(150deg,#0b1f3a 0%,#123358 58%,#1c58ab 130%);color:#eaf1fb;padding:56px 0 66px;position:relative;overflow:hidden}
.cat-hero::after{content:"";position:absolute;right:-160px;top:-170px;width:480px;height:480px;border-radius:50%;background:radial-gradient(circle,rgba(47,124,246,.36),transparent 66%);pointer-events:none}
.cat-hero-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:44px;align-items:start;position:relative;z-index:1}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:7px;font-size:13px;color:#9db9dc;margin-bottom:16px}
.crumb a{color:#cfe1ff}
.crumb a:hover{color:#fff;text-decoration:underline}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;padding:6px 13px;border-radius:999px;background:var(--brand-light);color:var(--brand)}
.tag-light{background:rgba(255,255,255,.14);color:#cfe1ff;border:1px solid rgba(255,255,255,.22)}
.cat-hero h1{font-size:clamp(26px,3.1vw,38px);line-height:1.34;color:#fff;margin:16px 0 16px;letter-spacing:.3px}
.cat-lead{font-size:15.5px;color:#c2d3ea;line-height:1.9;max-width:660px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;font-size:14px;color:#a9c0dd}
.hero-points li{display:flex;align-items:center;gap:7px}
.hero-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:#5fa2ff;flex:0 0 auto}
.cat-panel{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.17);border-radius:18px;padding:20px;box-shadow:0 22px 52px rgba(4,16,34,.34)}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding-bottom:14px;border-bottom:1px solid rgba(255,255,255,.12);margin-bottom:6px}
.panel-title{font-size:14.5px;font-weight:600;color:#fff}
.panel-badge{font-size:12px;color:#9fc4f5;background:rgba(95,162,255,.16);border:1px solid rgba(95,162,255,.3);padding:3px 9px;border-radius:999px;white-space:nowrap}
.check-list li{display:flex;align-items:flex-start;gap:10px;padding:11px 0;border-bottom:1px solid rgba(255,255,255,.08);font-size:14px;color:#d5e3f6;line-height:1.6}
.check-list li:last-child{border-bottom:0}
.check-dot{width:20px;height:20px;border-radius:6px;background:rgba(95,162,255,.2);color:#9fc4f5;display:grid;place-items:center;font-size:11px;font-weight:700;flex:0 0 auto;margin-top:3px}
.panel-note{font-size:12.5px;color:#93aecd;line-height:1.7;padding-top:12px;border-top:1px solid rgba(255,255,255,.09);margin-top:6px}

/* sections */
.sec{padding:64px 0}
.sec-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:34px}
.sec-title{font-size:clamp(21px,2.4vw,30px);margin:12px 0 12px;line-height:1.4}
.sec-desc{color:var(--muted);font-size:15px;line-height:1.85}
.grid-2,.grid-3,.grid-4{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.grid-2>*,.grid-3>*,.grid-4>*{min-width:0}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s,border-color .2s;min-width:0}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#c9dbf5}
.card-icon{width:44px;height:44px;border-radius:13px;background:var(--brand-light);color:var(--brand);display:grid;place-items:center;font-size:17px;font-weight:700;margin-bottom:15px}
.card h3{font-size:17px;margin-bottom:8px}
.card p{color:var(--muted);font-size:14.5px;line-height:1.78}
.card-num{font-size:12.5px;font-weight:700;color:var(--accent);letter-spacing:1px;margin-bottom:8px;display:block}
.card ul{margin-top:12px;display:grid;gap:7px}
.card ul li{position:relative;padding-left:16px;font-size:14px;color:#41536f;line-height:1.7}
.card ul li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--accent)}

/* account compare */
.cmp-list{display:grid;gap:14px}
.cmp-row{display:grid;grid-template-columns:200px minmax(0,1fr) 210px;gap:20px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 22px;box-shadow:var(--shadow-sm);transition:border-color .2s,box-shadow .2s,transform .2s}
.cmp-row:hover{border-color:#c9dbf5;box-shadow:var(--shadow-md);transform:translateY(-2px)}
.cmp-name{font-weight:700;font-size:16px;color:var(--brand-dark)}
.cmp-name span{display:block;font-weight:400;font-size:12.5px;color:var(--muted);margin-top:3px;letter-spacing:.4px}
.cmp-desc{font-size:14.5px;color:#43556f;line-height:1.75;min-width:0}
.cmp-tag{justify-self:start;font-size:12.5px;font-weight:600;color:var(--brand);background:var(--brand-light);border:1px solid #d3e1f8;border-radius:999px;padding:5px 12px;white-space:nowrap}

/* steps */
.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}
.step{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 18px;box-shadow:var(--shadow-sm);position:relative;min-width:0;transition:transform .2s,box-shadow .2s,border-color .2s}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#c9dbf5}
.step-index{font-size:12px;font-weight:700;color:var(--brand);letter-spacing:1.4px;margin-bottom:9px}
.step h3{font-size:15.5px;margin-bottom:7px}
.step p{font-size:13.8px;color:var(--muted);line-height:1.72}

/* split block */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:center}
.split-panel{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;box-shadow:var(--shadow-md);min-width:0}
.mock-head{display:flex;align-items:center;gap:8px;padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:16px}
.mock-dot{width:9px;height:9px;border-radius:50%;background:#d8e3f3}
.mock-dot.on{background:var(--accent)}
.mock-title{font-size:13.5px;font-weight:600;color:var(--brand-dark);margin-left:6px}
.mock-line{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px dashed var(--line);font-size:14px;color:#3d5170}
.mock-line:last-child{border-bottom:0}
.mock-pill{font-size:12px;color:#1f6b45;background:#e6f6ee;border-radius:999px;padding:3px 10px;white-space:nowrap}
.mock-pill.warn{color:#8a5a12;background:#fdf3e3}
.mock-pill.blue{color:var(--brand);background:var(--brand-light)}
.split-text h2{font-size:clamp(20px,2.2vw,28px);margin-bottom:14px;line-height:1.4}
.split-text p{color:var(--muted);font-size:15px;line-height:1.88;margin-bottom:14px}
.note-box{background:var(--brand-light);border-left:4px solid var(--accent);border-radius:12px;padding:16px 18px;font-size:14px;color:#2c4570;line-height:1.8}

/* risk list */
.risk-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.risk-item{background:#fff;border:1px solid var(--line);border-left:4px solid #f0b429;border-radius:12px;padding:18px 20px;box-shadow:var(--shadow-sm);min-width:0}
.risk-item h3{font-size:15.5px;margin-bottom:7px}
.risk-item p{font-size:14px;color:var(--muted);line-height:1.75}

/* download */
.dl-sec{background:linear-gradient(140deg,#0c2340 0%,#12375f 62%,#1a5296 135%);color:#e9f1fc;padding:64px 0}
.dl-head{max-width:720px;margin-bottom:30px}
.dl-head h2{font-size:clamp(21px,2.4vw,30px);color:#fff;margin:12px 0 12px}
.dl-head p{color:#b9cde6;font-size:15px;line-height:1.85}
.dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.dl-card{display:block;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.18);border-radius:16px;padding:22px;transition:background .2s,transform .2s,border-color .2s;min-width:0}
.dl-card:hover{background:rgba(255,255,255,.13);transform:translateY(-3px);border-color:rgba(143,192,255,.6)}
.dl-icon{width:44px;height:44px;border-radius:12px;background:rgba(95,162,255,.18);color:#a8ccf9;display:grid;place-items:center;font-size:16px;font-weight:700;margin-bottom:14px}
.dl-card h3{font-size:16.5px;color:#fff;margin-bottom:6px}
.dl-card p{font-size:13.5px;color:#a9c2de;line-height:1.7;margin-bottom:14px}
.dl-link{display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:600;color:#8fc0ff}
.dl-card:hover .dl-link{color:#fff}
.dl-note{margin-top:22px;font-size:13px;color:#93aecd;line-height:1.8}

/* news */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:10px;min-width:0;transition:transform .2s,box-shadow .2s,border-color .2s}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#c9dbf5}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:var(--muted)}
.news-cat{color:var(--brand);background:var(--brand-light);border-radius:999px;padding:2px 10px;font-weight:600}
.news-card h3{font-size:16px;line-height:1.55}
.news-card h3 a:hover{color:var(--brand)}
.news-card p{font-size:14px;color:var(--muted);line-height:1.75;flex:1}
.news-more{font-size:13.5px;font-weight:600;color:var(--accent)}
.news-more:hover{color:var(--brand-dark)}
.empty-note{background:#fff;border:1px dashed var(--line);border-radius:14px;padding:28px;text-align:center;color:var(--muted);font-size:14.5px}

/* faq */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:13px;box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .2s,box-shadow .2s}
.faq-item[open]{border-color:#c9dbf5;box-shadow:var(--shadow-md)}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 22px;font-size:15.5px;font-weight:600;color:var(--ink);display:flex;align-items:center;justify-content:space-between;gap:14px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:19px;font-weight:400;color:var(--accent);flex:0 0 auto;transition:transform .2s}
.faq-item[open] summary::after{content:"−"}
.faq-item .faq-body{padding:0 22px 20px;font-size:14.5px;color:var(--muted);line-height:1.85}

/* cta */
.cta-band{background:#fff;border:1px solid var(--line);border-radius:20px;padding:38px;box-shadow:var(--shadow-md);display:grid;grid-template-columns:minmax(0,1fr) auto;gap:26px;align-items:center}
.cta-band h2{font-size:clamp(19px,2.1vw,26px);margin-bottom:10px}
.cta-band p{color:var(--muted);font-size:14.8px;line-height:1.8;max-width:680px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* footer */
.site-footer{background:#0b1f3a;color:#b9cbe3;padding:56px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:34px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-col{min-width:0}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.footer-brand .brand-name{color:#fff;font-size:16px;font-weight:700;white-space:nowrap}
.footer-brand .brand-sub{color:#8ba7c8}
.footer-desc{font-size:13.8px;line-height:1.85;color:#9db4d1;max-width:420px}
.footer-col h4{font-size:14.5px;color:#fff;margin-bottom:14px;font-weight:600}
.footer-col a{display:block;font-size:13.8px;color:#9db4d1;padding:5px 0;transition:color .18s}
.footer-col a:hover{color:#fff}
.friend-links{padding:26px 0;border-bottom:1px solid rgba(255,255,255,.1)}
.friend-links h4{font-size:14.5px;color:#fff;margin-bottom:12px;font-weight:600}
.friend-list{display:flex;flex-wrap:wrap;gap:9px 20px}
.friend-list a{font-size:13.5px;color:#9db4d1;transition:color .18s}
.friend-list a:hover{color:#fff}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding:20px 0 26px;font-size:13px;color:#8ba7c8}

/* responsive */
@media (max-width:1024px){
  .cat-hero-grid{grid-template-columns:minmax(0,1fr);gap:32px}
  .split{grid-template-columns:minmax(0,1fr);gap:26px}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(3,minmax(0,1fr))}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cmp-row{grid-template-columns:160px minmax(0,1fr);grid-template-areas:"name desc" "tag tag"}
  .cmp-name{grid-area:name}
  .cmp-desc{grid-area:desc}
  .cmp-tag{grid-area:tag}
  .cta-band{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-col:first-child{grid-column:1 / -1}
}
@media (max-width:860px){
  .nav-menu{display:none}
  .nav-cta{margin-left:auto}
}
@media (max-width:768px){
  .sec{padding:48px 0}
  .cat-hero{padding:42px 0 52px}
  .dl-sec{padding:48px 0}
  .grid-2,.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .dl-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .risk-list{grid-template-columns:minmax(0,1fr)}
  .cta-band{padding:26px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .nav-inner{height:64px;gap:10px}
  .brand-name{font-size:14.5px}
  .brand-sub{font-size:10.5px}
  .brand-mark{width:36px;height:36px;font-size:15px;border-radius:10px}
  .nav-cta .btn-ghost{display:none}
  .nav-cta .btn{padding:9px 14px;font-size:13.5px}
  .grid-2,.grid-3,.grid-4,.steps,.dl-grid,.news-grid{grid-template-columns:minmax(0,1fr)}
  .cmp-row{grid-template-columns:minmax(0,1fr);grid-template-areas:"name" "desc" "tag";gap:10px;padding:18px}
  .hero-actions .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;gap:6px}
}

/* roulang page: article */
:root{
  --brand:#1a4fa0;
  --brand-dark:#0f3568;
  --brand-light:#e8f0fd;
  --accent:#2f7cf6;
  --ink:#14213d;
  --muted:#5b6b86;
  --line:#dde5f1;
  --bg:#f5f8fd;
  --card:#ffffff;
  --radius:16px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(16,38,74,.06),0 4px 14px rgba(16,38,74,.05);
  --shadow-md:0 12px 32px rgba(16,38,74,.10);
  --maxw:1180px;
}
*,*::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","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.72;
  font-size:16px;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.4}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:18px;height:74px}
.brand{display:flex;align-items:center;gap:11px;min-width:0}
.brand-mark{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;display:grid;place-items:center;font-weight:700;font-size:17px;flex:0 0 auto;letter-spacing:1px}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.3px;white-space:nowrap}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:.6px}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{padding:9px 15px;border-radius:10px;font-size:15px;color:#33456a;transition:background .2s,color .2s;white-space:nowrap}
.nav-link:hover{background:var(--brand-light);color:var(--brand)}
.nav-link.active{color:var(--brand);font-weight:600;background:var(--brand-light)}
.nav-cta{display:flex;align-items:center;gap:10px;margin-left:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;border-radius:11px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s,box-shadow .18s,background .18s,color .18s,border-color .18s;white-space:nowrap;text-align:center}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(26,79,160,.22)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 12px 26px rgba(26,79,160,.28)}
.btn-ghost{background:#fff;color:var(--brand);border-color:#c6d8f2}
.btn-ghost:hover{background:var(--brand-light);border-color:var(--brand)}
.btn-light{background:#fff;color:var(--brand-dark)}
.btn-light:hover{background:#eaf2ff;transform:translateY(-1px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline-light:hover{background:rgba(255,255,255,.14)}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px}
.btn-block{width:100%}
.btn:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid rgba(47,124,246,.45);outline-offset:2px}

/* tags */
.tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;padding:6px 13px;border-radius:999px;background:var(--brand-light);color:var(--brand)}
.tag-light{background:rgba(255,255,255,.14);color:#cfe1ff;border:1px solid rgba(255,255,255,.22)}

/* article hero */
.article-hero{background:linear-gradient(180deg,#e9f1fd 0%,#f7faff 100%);border-bottom:1px solid var(--line);padding:34px 0 42px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:14px}
.crumbs a{color:var(--brand);transition:color .2s}
.crumbs a:hover{color:var(--brand-dark)}
.crumbs .sep{color:#b7c5db}
.article-hero h1{font-size:clamp(22px,2.7vw,33px);line-height:1.45;color:#0f2549;letter-spacing:.2px;max-width:940px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:16px;font-size:13.5px;color:var(--muted)}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-chip{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;background:#fff;border:1px solid #c9dcf7;color:var(--brand);font-size:12.5px;font-weight:600}
.hero-note{margin-top:18px;font-size:14px;color:#4a5f80;max-width:820px;line-height:1.8}

/* sections */
.sec{padding:56px 0}
.sec-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:28px}
.sec-title{font-size:clamp(21px,2.3vw,28px);margin:12px 0 10px;letter-spacing:.2px}
.sec-desc{color:var(--muted);font-size:15px;line-height:1.85}

/* article layout */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 318px;gap:32px;align-items:start}
.article-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:clamp(22px,3vw,40px);box-shadow:var(--shadow-sm);min-width:0}
.article-body{font-size:16px;line-height:1.92;color:#22314f;overflow-wrap:break-word;word-break:normal}
.article-body h1{font-size:24px;margin:0 0 16px}
.article-body h2{font-size:21px;margin:34px 0 14px;padding-left:12px;border-left:4px solid var(--brand);line-height:1.5;color:#10254a}
.article-body h3{font-size:17.5px;margin:26px 0 10px;color:#12305c}
.article-body h4{font-size:16px;margin:22px 0 8px}
.article-body p{margin:0 0 16px}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:8px;line-height:1.85}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-dark)}
.article-body strong{color:#0f2549}
.article-body img{border-radius:12px;margin:20px 0;max-width:100%;height:auto}
.article-body blockquote{margin:20px 0;padding:15px 20px;background:var(--brand-light);border-left:4px solid var(--accent);border-radius:10px;color:#2b4368}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:28px 0}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14.5px;display:block;overflow-x:auto}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.article-body th{background:#eef4fd;color:#12305c;font-weight:600}
.article-body code{background:#eef3fb;border-radius:6px;padding:2px 6px;font-size:14px;color:#1a4fa0}

/* empty */
.empty-state{text-align:center;padding:54px 18px;max-width:520px;margin:0 auto}
.empty-state .empty-icon{width:58px;height:58px;border-radius:16px;background:var(--brand-light);color:var(--brand);display:grid;place-items:center;font-size:22px;margin:0 auto 18px}
.empty-state h2{font-size:20px;margin-bottom:10px}
.empty-state p{color:var(--muted);font-size:14.5px;margin-bottom:22px}
.empty-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}

/* aside */
.aside{position:sticky;top:94px;min-width:0}
.aside-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 20px 16px;box-shadow:var(--shadow-sm);margin-bottom:18px}
.aside-card h3{font-size:15.5px;margin-bottom:12px;color:#10254a;display:flex;align-items:center;gap:8px}
.aside-card h3 i{color:var(--accent);font-size:14px}
.aside-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;border-radius:10px;font-size:14.5px;color:#33456a;background:#f7faff;border:1px solid #e5eefa;margin-bottom:9px;transition:background .2s,color .2s,border-color .2s,transform .2s}
.aside-list a:last-child{margin-bottom:0}
.aside-list a:hover{background:var(--brand-light);color:var(--brand);border-color:#c3d9f6;transform:translateX(2px)}
.aside-list a i{font-size:12px;color:#9db3d1}
.aside-tip{font-size:13.5px;color:var(--muted);line-height:1.85}
.aside-dl{background:linear-gradient(140deg,#0f3568,#1a4fa0 70%,#2f7cf6 130%);border:0;color:#dbe9fb}
.aside-dl h3{color:#fff}
.aside-dl h3 i{color:#8fc0ff}
.aside-dl p{font-size:13.5px;color:#b9cfe9;margin-bottom:14px;line-height:1.8}

/* notice */
.notice{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:20px}
.notice-card{background:#fff;border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:14px;padding:22px 24px;box-shadow:var(--shadow-sm);min-width:0}
.notice-card h3{font-size:16.5px;margin-bottom:9px;color:#10254a}
.notice-card p{color:var(--muted);font-size:14.5px;line-height:1.85}
.notice-card.warn{border-left-color:#e0932f}
.notice-card.warn h3{color:#8a5a12}

/* checklist */
.check-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.check-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s,border-color .2s;min-width:0}
.check-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#c9dbf5}
.check-icon{width:42px;height:42px;border-radius:12px;background:var(--brand-light);color:var(--brand);display:grid;place-items:center;font-size:16px;margin-bottom:14px}
.check-card h3{font-size:15.5px;margin-bottom:8px}
.check-card p{color:var(--muted);font-size:14px;line-height:1.8}

/* download */
.dl-section{background:linear-gradient(140deg,#0b1f3a 0%,#123358 48%,#1a4fa0 118%);border-radius:22px;padding:clamp(24px,3.4vw,42px);color:#eaf1fb;position:relative;overflow:hidden;box-shadow:0 20px 46px rgba(9,28,56,.22)}
.dl-section::after{content:"";position:absolute;right:-120px;top:-130px;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(47,124,246,.42),transparent 68%);pointer-events:none}
.dl-head{position:relative;z-index:1;max-width:720px}
.dl-head h2{font-size:clamp(20px,2.4vw,27px);color:#fff;margin:14px 0 10px;line-height:1.45}
.dl-head p{font-size:14.5px;color:#bdd2ec;line-height:1.85}
.dl-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:26px}
.dl-btn{display:flex;align-items:center;gap:14px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);border-radius:14px;padding:16px 18px;color:#fff;min-width:0;transition:background .2s,transform .2s,border-color .2s}
.dl-btn:hover{background:rgba(255,255,255,.19);transform:translateY(-2px);border-color:rgba(255,255,255,.45)}
.dl-icon{width:42px;height:42px;flex:0 0 auto;border-radius:11px;background:rgba(255,255,255,.16);display:grid;place-items:center;font-size:17px}
.dl-text{display:flex;flex-direction:column;min-width:0}
.dl-text strong{font-size:15.5px;line-height:1.5}
.dl-text span{font-size:12.5px;color:#bcd2ee;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.dl-foot{position:relative;z-index:1;margin-top:20px;font-size:13px;color:#9fb8d6;line-height:1.8}

/* faq */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:0 20px;box-shadow:var(--shadow-sm);transition:border-color .2s,box-shadow .2s}
.faq-item[open]{border-color:#c3d9f6;box-shadow:var(--shadow-md)}
.faq-item summary{cursor:pointer;list-style:none;padding:17px 0;font-weight:600;font-size:15.5px;color:#12305c;display:flex;align-items:center;justify-content:space-between;gap:14px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;color:var(--accent);transition:transform .2s;flex:0 0 auto}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-item p{color:var(--muted);font-size:14.5px;line-height:1.9;padding:0 0 18px;border-top:1px solid #eef3fb;padding-top:14px;margin-top:-2px}

/* cta */
.cta-band{background:#fff;border:1px solid var(--line);border-radius:20px;padding:clamp(24px,3vw,38px);display:flex;align-items:center;justify-content:space-between;gap:26px;box-shadow:var(--shadow-sm)}
.cta-band h2{font-size:clamp(19px,2.2vw,24px);margin-bottom:8px}
.cta-band p{color:var(--muted);font-size:14.5px;line-height:1.85;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}

/* footer */
.site-footer{background:#0b1f3a;color:#a9bfd9;padding:52px 0 24px;margin-top:56px}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(0,.8fr) minmax(0,.8fr);gap:34px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:#7f9ab8}
.footer-desc{font-size:14px;line-height:1.85;color:#93aac6;max-width:430px}
.footer-col h4{color:#fff;font-size:15px;margin:0 0 14px}
.footer-col a{display:block;font-size:14px;color:#9db3cd;padding:5px 0;transition:color .2s,transform .2s}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.friend-links{margin-top:34px;padding-top:26px;border-top:1px solid rgba(255,255,255,.12)}
.friend-links h4{color:#fff;font-size:15px;margin:0 0 14px}
.friend-list{display:flex;flex-wrap:wrap;gap:10px 18px;min-height:1px}
.friend-list a{font-size:14px;color:#9db3cd;transition:color .2s}
.friend-list a:hover{color:#fff}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;margin-top:26px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:#7f9ab8}

/* responsive */
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .aside{position:static;top:auto}
  .check-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px}
  .footer-col:first-child{grid-column:1 / -1}
}
@media (max-width:900px){
  .nav-inner{flex-wrap:wrap;height:auto;padding-top:12px;padding-bottom:12px;gap:10px}
  .nav-menu{order:3;width:100%;margin-left:0;overflow-x:auto;padding-bottom:2px}
  .nav-cta{margin-left:auto}
  .dl-grid{grid-template-columns:minmax(0,1fr)}
  .notice{grid-template-columns:minmax(0,1fr)}
  .cta-band{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
}
@media (max-width:768px){
  .sec{padding:44px 0}
  .article-hero{padding:26px 0 32px}
  .article-card{padding:20px 18px}
  .article-body{font-size:15.5px;line-height:1.88}
  .article-body h2{font-size:19px;margin-top:28px}
  .article-body h3{font-size:16.5px}
  .check-grid{grid-template-columns:minmax(0,1fr)}
  .container{padding:0 16px}
}
@media (max-width:520px){
  .nav-cta .btn-ghost{display:none}
  .nav-cta .btn-primary{padding:9px 14px;font-size:14px}
  .brand-sub{display:none}
  .article-meta{font-size:12.5px;gap:8px 14px}
  .dl-btn{padding:14px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .cta-actions .btn{width:100%}
  .dl-text span{white-space:normal}
}