/* roulang page: index */
:root{
  --brand:#17516B; --brand-deep:#123F53; --brand-soft:rgba(23,81,107,.10);
  --accent:#E2593B; --accent-deep:#C94629;
  --tint:#EAF1F3; --page:#FBFAF8; --sand:#F3EFE9;
  --ink:#10222B; --body:#4A5A63; --muted:#7C8B93; --line:#E4E8EA;
  --r-card:16px; --r-img:12px; --r-btn:10px;
  --sh1:0 2px 6px rgba(16,34,43,.06),0 12px 32px -12px rgba(16,34,43,.12);
  --sh2:0 6px 14px rgba(16,34,43,.10),0 18px 40px -14px rgba(16,34,43,.18);
  --bs-primary:#17516B; --bs-primary-rgb:23,81,107;
  --bs-body-color:#4A5A63; --bs-body-bg:#FBFAF8;
  --bs-border-radius:12px; --bs-link-color:#17516B; --bs-link-hover-color:#123F53;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--page);color:var(--body);font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-deep)}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select{font-family:inherit}
a:focus-visible,button:focus-visible,.btn:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.sec-head{max-width:760px;margin-bottom:40px}
.sec-head h2{font-size:32px;line-height:1.3;position:relative;padding-bottom:16px}
.sec-head h2::after{content:"";position:absolute;left:0;bottom:0;width:48px;height:4px;border-radius:2px;background:var(--brand)}
.sec-head p{margin-top:16px;color:var(--muted);font-size:15px}

/* 倒计时条 */
.ticker{background:var(--accent);color:#fff}
.ticker-inner{max-width:1200px;margin:0 auto;padding:0 24px;min-height:50px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.ticker-name{font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ticker-right{display:flex;align-items:center;gap:12px}
.tick-units{display:flex;align-items:center;gap:6px;font-size:13px}
.tick-unit{display:inline-flex;align-items:center;gap:4px}
.tick-num{min-width:30px;text-align:center;background:rgba(255,255,255,.18);border-radius:6px;padding:2px 6px;font-weight:700;font-variant-numeric:tabular-nums}
.tick-label{opacity:.85}
.tick-btn{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;border:1px solid rgba(255,255,255,.7);color:#fff;font-size:13px;font-weight:600;white-space:nowrap;min-height:30px}
.tick-btn:hover{background:#fff;color:var(--accent-deep)}

/* 导航 */
.site-nav{background:#fff;border-bottom:1px solid var(--line);padding:0;position:sticky;top:0;z-index:1030;transition:box-shadow .25s ease}
.site-nav.scrolled{box-shadow:0 6px 20px -10px rgba(16,34,43,.35)}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 24px;height:72px;display:flex;align-items:center;gap:28px}
.brand{display:inline-flex;align-items:center;gap:8px;font-size:21px;font-weight:700;color:var(--brand);letter-spacing:.5px;flex:0 0 auto}
.brand:hover{color:var(--brand)}
.brand-dot{width:10px;height:10px;border-radius:3px;background:var(--accent);display:inline-block}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-links a{font-size:15px;color:var(--body);padding:6px 0;position:relative;min-height:44px;display:inline-flex;align-items:center}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--brand);transition:width .22s ease}
.nav-links a:hover{color:var(--brand)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-links a.active{color:var(--brand);font-weight:600}
.nav-cta{margin-left:28px;display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 22px;border-radius:12px;background:var(--accent);color:#fff;font-size:15px;font-weight:600;box-shadow:0 8px 18px -10px rgba(226,89,59,.9);transition:all .25s ease}
.nav-cta:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1.5px solid var(--line);background:#fff;align-items:center;justify-content:center;margin-left:auto}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-panel{display:none;border-top:1px solid var(--line);background:#fff}
.mobile-panel.open{display:block}
.mobile-panel a{display:flex;align-items:center;min-height:48px;padding:0 24px;font-size:15px;color:var(--body);border-bottom:1px solid var(--line)}
.mobile-panel a:last-child{border-bottom:0}
.nav-cta-sm{display:none;height:38px;padding:0 16px;border-radius:10px;background:var(--accent);color:#fff;font-size:14px;font-weight:600;align-items:center;justify-content:center;margin-left:12px}
.nav-cta-sm:hover{background:var(--accent-deep);color:#fff}

/* Hero */
.hero{padding:72px 0 88px;background:linear-gradient(180deg,rgba(234,241,243,.7) 0%,rgba(251,250,248,0) 78%)}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:5px 14px;margin-bottom:20px}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
h1{font-size:44px;line-height:1.2;margin-bottom:20px}
.hero-sub{font-size:17px;color:var(--body);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-btn);font-size:16px;font-weight:600;border:0;transition:all .25s ease;cursor:pointer}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 24px -12px rgba(226,89,59,.9)}
.btn-accent:hover{background:var(--accent-deep);color:#fff;transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--brand);border:1.5px solid var(--brand)}
.btn-outline:hover{background:var(--brand);color:#fff}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.hero-badges li{font-size:13px;font-weight:600;color:var(--brand);background:#fff;border-radius:999px;padding:6px 14px;box-shadow:var(--sh1)}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);box-shadow:var(--sh1)}
.hero-media::after{content:"";position:absolute;left:18px;bottom:-14px;width:96px;height:4px;border-radius:2px;background:var(--brand)}
.hero-media .media-note{position:absolute;right:16px;bottom:16px;background:rgba(16,34,43,.72);color:#fff;font-size:12px;border-radius:999px;padding:5px 12px}

/* 要点带 */
.points{display:grid;grid-template-columns:repeat(2,1fr);gap:0 48px}
.point{display:flex;gap:20px;padding:28px 0;border-bottom:1px solid var(--line)}
.point-num{flex:0 0 auto;font-size:15px;font-weight:700;color:var(--brand);letter-spacing:1px;padding-top:2px}
.point-line{flex:0 0 auto;width:2px;background:var(--line);border-radius:2px}
.point-body h3{font-size:20px;line-height:1.5;margin-bottom:6px}
.point-body p{font-size:15px;color:var(--muted)}

/* 图墙 */
.wall-band{background:var(--sand);border-radius:24px;padding:56px 40px}
.wall{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:172px;gap:20px}
.wall-item{position:relative;overflow:hidden;border-radius:var(--r-img);box-shadow:var(--sh1);margin:0}
.wall-item:first-child{grid-column:span 2;grid-row:span 2}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.wall-item:hover img{transform:scale(1.03)}
.wall-cap{position:absolute;left:0;bottom:0;right:0;padding:16px;font-size:13px;color:#fff;background:linear-gradient(to top,rgba(16,34,43,.78),rgba(16,34,43,0))}
.wall-cap strong{display:block;font-size:15px;font-weight:600;margin-bottom:2px}

/* 数据 */
.stats-band{background:var(--brand);border-radius:var(--r-card);padding:44px 40px;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;color:#fff}
.stat-num{font-size:38px;font-weight:700;line-height:1.2;font-variant-numeric:tabular-nums}
.stat-num small{font-size:15px;font-weight:600;margin-left:4px;opacity:.85}
.stat-label{font-size:14px;color:rgba(255,255,255,.8);margin-top:6px}

/* 资讯列表 */
.news-band{background:#fff;border-radius:24px;padding:56px 40px;box-shadow:var(--sh1)}
.cms-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.cms-card{display:block;background:var(--page);border-radius:var(--r-card);padding:26px;transition:all .25s ease;color:inherit}
.cms-card:hover{background:#fff;box-shadow:var(--sh2);transform:translateY(-4px);color:inherit}
.cms-meta{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.badge-soft{display:inline-block;font-size:12px;font-weight:600;color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:4px 10px}
.cms-date{font-size:13px;color:var(--muted)}
.cms-card h3{font-size:19px;line-height:1.5;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:8px}
.cms-card p{font-size:15px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:52px}
.cms-more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;font-weight:600;color:var(--brand)}
.cms-card:hover .cms-more .arrow{transform:translateX(4px)}
.arrow{display:inline-block;transition:transform .2s ease}
.cms-empty{grid-column:1/-1;text-align:center;padding:48px 20px;color:var(--muted)}
.cms-empty-icon{font-size:30px;color:var(--brand);display:block;margin-bottom:10px}
.cms-empty .btn-link{display:inline-block;margin-top:12px;font-weight:600;color:var(--brand)}

/* 报名 CTA */
.join-band{background:var(--tint);border-radius:24px;padding:56px 40px;display:grid;grid-template-columns:1fr 420px;gap:48px;align-items:start}
.join-band h2{font-size:32px;line-height:1.3;margin-bottom:16px}
.join-lead{font-size:16px;color:var(--body);max-width:460px}
.join-list{margin-top:26px;display:grid;gap:14px}
.join-list li{display:flex;gap:12px;font-size:15px;color:var(--body)}
.join-list li::before{content:"";flex:0 0 auto;width:8px;height:8px;border-radius:50%;background:var(--accent);margin-top:11px}
.form-card{background:#fff;border-radius:var(--r-card);padding:32px;box-shadow:var(--sh1)}
.form-card h3{font-size:20px;margin-bottom:6px}
.form-card .form-note{font-size:13px;color:var(--muted);margin-bottom:22px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.form-control,.form-select{width:100%;height:48px;border-radius:var(--r-btn);border:1px solid #DDE3E6;padding:0 14px;font-size:15px;color:var(--ink);background:#fff;transition:all .2s ease;box-shadow:none}
.form-control:focus,.form-select:focus{border:1.5px solid var(--brand);box-shadow:0 0 0 3px rgba(23,81,107,.14);outline:none}
.form-control::placeholder{color:#A9B4BA}
.btn-submit{width:100%;height:50px;border-radius:var(--r-btn);background:var(--accent);color:#fff;font-size:16px;font-weight:600;border:0;transition:all .25s ease}
.btn-submit:hover{background:var(--accent-deep);transform:translateY(-2px)}
.privacy-note{font-size:12px;color:var(--muted);margin-top:14px;line-height:1.7}
.form-tip{font-size:13px;color:var(--accent-deep);margin-top:6px;display:none}
.form-tip.show{display:block}

/* FAQ */
.faq-band{background:var(--sand);border-radius:24px;padding:56px 40px}
.accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent;border-radius:0}
.accordion-item:last-child{border-bottom:0}
.accordion-button{background:transparent;box-shadow:none;padding:20px 0 20px 18px;font-size:17px;font-weight:600;color:var(--ink);border-radius:0}
.accordion-button:not(.collapsed){color:var(--brand);background:transparent;box-shadow:inset 4px 0 0 var(--brand)}
.accordion-button:focus{box-shadow:inset 4px 0 0 var(--brand);border-color:transparent;outline:none}
.accordion-button::after{content:"+";background-image:none;width:22px;height:22px;font-size:20px;line-height:1;color:var(--brand);text-align:center;transform:none;margin-left:auto;display:flex;align-items:center;justify-content:center}
.accordion-button:not(.collapsed)::after{content:"−";transform:none}
.accordion-body{padding:0 0 22px 18px;font-size:15px;color:var(--body);line-height:1.85}

/* 页脚 */
.site-footer{background:var(--brand);color:#fff;padding:72px 0 0}
.foot-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.foot-logo{display:inline-flex;align-items:center;gap:8px;font-size:21px;font-weight:700;color:#fff;margin-bottom:16px}
.foot-logo:hover{color:#fff}
.site-footer h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.site-footer p,.site-footer li,.site-footer a{font-size:14px;line-height:1.95;color:rgba(255,255,255,.8)}
.site-footer a:hover{color:#fff}
.foot-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.15);padding:24px 0 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.7)}
.foot-bottom a{font-size:13px;color:rgba(255,255,255,.7)}
.foot-bottom a:hover{color:#fff}

@media (max-width:1199px){
  .hero-grid{gap:36px}
  .wall-band,.news-band,.join-band,.faq-band{padding:44px 28px}
}
@media (max-width:991px){
  .section{padding:64px 0}
  h1{font-size:36px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero{padding:48px 0 64px}
  .hero-media::after{display:none}
  .join-band{grid-template-columns:1fr;gap:32px}
  .stats-band{grid-template-columns:repeat(2,1fr);padding:32px 28px}
  .foot-top{grid-template-columns:1fr 1fr}
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .nav-cta-sm{display:inline-flex}
  .nav-inner{gap:12px}
}
@media (max-width:767px){
  .wrap{padding:0 16px}
  .section{padding:52px 0}
  h1{font-size:30px}
  h2,.sec-head h2,.join-band h2{font-size:24px}
  .sec-head h3{font-size:18px}
  .hero-sub{font-size:16px}
  .points{grid-template-columns:1fr;gap:0}
  .point{padding:22px 0}
  .wall-band{padding:32px 20px;border-radius:18px}
  .wall{display:flex;overflow-x:auto;gap:16px;padding-bottom:10px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
  .wall-item,.wall-item:first-child{flex:0 0 76%;height:200px;scroll-snap-align:start}
  .news-band,.faq-band,.join-band{padding:32px 20px;border-radius:18px}
  .cms-grid{grid-template-columns:1fr}
  .stats-band{grid-template-columns:repeat(2,1fr);gap:18px;padding:28px 20px}
  .stat-num{font-size:28px}
  .foot-top{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .form-card{padding:24px}
  .ticker-name{display:none}
  .ticker-inner{justify-content:center;padding:0 16px}
  .tick-units{font-size:12px}
}
@media (max-width:400px){
  .tick-unit .tick-label{display:none}
}

/* roulang page: article */
:root{
  --bs-primary:#17516B;
  --bs-body-color:#4A5A63;
  --bs-border-radius:16px;
  --bs-link-color:#17516B;
  --bs-link-hover-color:#0F3C50;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --brand:#17516B;
  --brand-deep:#0F3C50;
  --accent:#E2593B;
  --accent-deep:#C9482C;
  --tint:#EAF1F3;
  --page:#FBFAF8;
  --card:#FFFFFF;
  --sand:#F3EFE9;
  --head:#10222B;
  --body:#4A5A63;
  --muted:#7C8B93;
  --line:#E4E8EA;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 2px 6px rgba(16,34,43,.06),0 12px 32px -12px rgba(16,34,43,.12);
  --sh-2:0 6px 14px rgba(16,34,43,.10),0 18px 40px -14px rgba(16,34,43,.18);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--page);
  color:var(--body);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-decoration:none;transition:color .25s ease;}
a:hover{color:var(--brand-deep);}
img{max-width:100%;display:block;}
ul,ol{margin:0;}
h1,h2,h3,h4{color:var(--head);margin:0;font-weight:700;}
h1{font-size:44px;line-height:1.2;}
h2{font-size:32px;line-height:1.3;}
h3{font-size:20px;line-height:1.5;font-weight:600;}
p{margin:0 0 18px;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 倒计时条 ---------- */
.count-bar{background:var(--accent);color:#fff;}
.count-inner{max-width:1200px;margin:0 auto;padding:0 24px;min-height:48px;display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.count-title{font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.count-nums{display:flex;align-items:center;gap:6px;margin-left:auto;font-variant-numeric:tabular-nums;}
.count-nums span.unit{font-size:12px;opacity:.85;}
.count-box{background:rgba(255,255,255,.22);border-radius:6px;padding:2px 7px;font-size:14px;font-weight:600;min-width:30px;text-align:center;}
.count-link{border:1px solid rgba(255,255,255,.7);color:#fff;border-radius:8px;padding:4px 14px;font-size:13px;white-space:nowrap;transition:.25s ease;}
.count-link:hover{background:#fff;color:var(--accent);}

/* ---------- 导航 ---------- */
.site-nav{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease;}
.site-nav.is-stuck{box-shadow:0 4px 18px rgba(16,34,43,.10);}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 24px;height:72px;display:flex;align-items:center;gap:20px;}
.brand{order:1;display:inline-flex;align-items:center;gap:8px;font-size:20px;font-weight:700;color:var(--brand);text-decoration:none;white-space:nowrap;}
.brand:hover{color:var(--brand-deep);}
.brand-dot{width:9px;height:9px;border-radius:50%;background:var(--accent);display:inline-block;flex:0 0 auto;}
.nav-links{order:2;display:flex;align-items:center;gap:30px;margin-left:auto;}
.nav-links a{position:relative;font-size:15px;color:var(--head);padding:6px 0;text-decoration:none;}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--brand);transition:width .25s ease;}
.nav-links a:hover{color:var(--brand);}
.nav-links a:hover::after,.nav-links a.active::after{width:100%;}
.nav-links a.active{color:var(--brand);font-weight:600;}
.nav-cta{order:3;display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 22px;border-radius:12px;background:var(--accent);color:#fff;font-size:15px;font-weight:600;text-decoration:none;margin-left:8px;transition:.25s ease;}
.nav-cta:hover{background:var(--accent-deep);color:#fff;transform:translateY(-2px);box-shadow:0 8px 18px rgba(226,89,59,.28);}
.nav-toggle{display:none;order:3;width:44px;height:44px;padding:0;border:1px solid var(--line);border-radius:10px;background:#fff;position:relative;cursor:pointer;}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{position:absolute;left:50%;transform:translateX(-50%);width:18px;height:2px;background:var(--brand);border-radius:2px;content:"";transition:.25s ease;}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{top:-6px;left:0;transform:none;}
.nav-toggle span::after{top:6px;left:0;transform:none;}
.nav-toggle.is-open span{background:transparent;}
.nav-toggle.is-open span::before{top:0;transform:rotate(45deg);}
.nav-toggle.is-open span::after{top:0;transform:rotate(-45deg);}
.nav-cta-sm{display:none;order:2;align-items:center;justify-content:center;height:38px;padding:0 16px;border-radius:10px;background:var(--accent);color:#fff;font-size:14px;font-weight:600;text-decoration:none;transition:.25s ease;}
.nav-cta-sm:hover{background:var(--accent-deep);color:#fff;}
.mobile-panel{display:none;border-top:1px solid var(--line);background:#fff;padding:8px 24px 18px;}
.mobile-panel.open{display:block;}
.mobile-panel a{display:flex;align-items:center;min-height:46px;font-size:15px;color:var(--head);border-bottom:1px solid var(--line);}
.mobile-panel a:last-child{border-bottom:0;}
.mobile-panel a.active{color:var(--brand);font-weight:600;}

/* ---------- 按钮 ---------- */
.btn-main{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-btn);background:var(--accent);color:#fff;font-size:16px;font-weight:600;border:0;cursor:pointer;transition:.25s ease;}
.btn-main:hover{background:var(--accent-deep);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(226,89,59,.26);}
.btn-main:active{transform:translateY(0);}
.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-btn);background:transparent;color:var(--brand);font-size:16px;font-weight:600;border:1.5px solid var(--brand);cursor:pointer;transition:.25s ease;}
.btn-ghost:hover{background:var(--brand);color:#fff;}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:15px;font-weight:600;}
.btn-text .arrow{transition:transform .25s ease;}
.btn-text:hover{color:var(--brand-deep);}
.btn-text:hover .arrow{transform:translateX(4px);}

/* ---------- 面包屑与文章头 ---------- */
.crumb{font-size:13px;color:var(--muted);padding:22px 0 0;display:flex;flex-wrap:wrap;gap:6px;align-items:center;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#C3CDD2;}
.crumb .now{color:var(--body);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-head{padding:22px 0 30px;border-bottom:1px solid var(--line);}
.badge-tag{display:inline-flex;align-items:center;background:rgba(23,81,107,.10);color:var(--brand);border-radius:999px;padding:4px 12px;font-size:12px;font-weight:600;letter-spacing:.3px;}
.badge-accent{display:inline-flex;align-items:center;background:rgba(226,89,59,.12);color:var(--accent-deep);border-radius:999px;padding:4px 12px;font-size:12px;font-weight:600;}
.article-head h1{margin:16px 0 16px;font-size:38px;line-height:1.32;}
.article-meta{display:flex;flex-wrap:wrap;gap:20px;font-size:13px;color:var(--muted);}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-meta i{width:5px;height:5px;border-radius:50%;background:var(--brand);display:inline-block;}

/* ---------- 正文布局 ---------- */
.article-layout{padding:44px 0 0;}
.panel{background:var(--card);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:36px;}
.reading{font-size:16px;line-height:1.85;color:var(--body);}
.reading > h2{font-size:24px;line-height:1.45;margin:38px 0 16px;padding-left:14px;border-left:4px solid var(--brand);}
.reading > h2:first-child{margin-top:0;}
.reading h3{font-size:19px;margin:28px 0 12px;}
.reading p{margin:0 0 20px;}
.reading ul,.reading ol{margin:0 0 20px;padding-left:22px;}
.reading ul{list-style:none;padding-left:0;}
.reading ul > li{position:relative;padding-left:18px;margin-bottom:10px;}
.reading ul > li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--brand);}
.reading ol > li{margin-bottom:10px;}
.reading blockquote{margin:24px 0;padding:16px 22px;border-left:3px solid var(--brand);background:var(--tint);border-radius:0 10px 10px 0;color:var(--body);}
.reading blockquote p:last-child{margin-bottom:0;}
.reading img{border-radius:var(--r-img);margin:24px auto;}
.reading figure{margin:24px 0;}
.reading figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px;}
.reading table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.reading th,.reading td{border-bottom:1px solid var(--line);padding:12px 14px;text-align:left;}
.reading th{background:var(--tint);color:var(--head);font-weight:600;}
.reading a{color:var(--brand);text-decoration:underline;}
.reading a:hover{color:var(--brand-deep);}
.reading hr{border:0;border-top:1px solid var(--line);margin:32px 0;}
.empty-box{text-align:center;padding:56px 20px;}
.empty-box .empty-ico{width:64px;height:64px;border-radius:50%;background:var(--tint);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:26px;margin:0 auto 18px;font-weight:700;}
.empty-box h2{font-size:22px;margin-bottom:10px;}
.empty-box p{color:var(--muted);font-size:14px;margin-bottom:22px;}

/* ---------- 侧栏 ---------- */
.side-card{background:var(--card);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:24px;margin-bottom:22px;}
.side-card h3{font-size:17px;margin-bottom:16px;padding-left:12px;border-left:4px solid var(--brand);line-height:1.2;}
.side-list{list-style:none;padding:0;margin:0;}
.side-list li{padding:12px 0;border-bottom:1px solid var(--line);}
.side-list li:last-child{border-bottom:0;padding-bottom:0;}
.side-list a{display:flex;gap:12px;align-items:flex-start;color:var(--head);font-size:14px;line-height:1.6;}
.side-list a:hover{color:var(--brand);}
.side-thumb{width:76px;height:58px;border-radius:10px;object-fit:cover;flex:0 0 auto;background:var(--tint);}
.side-list .side-txt{display:flex;flex-direction:column;gap:6px;}
.side-list .side-date{font-size:12px;color:var(--muted);}
.back-link{display:flex;align-items:center;justify-content:space-between;font-size:15px;font-weight:600;color:var(--brand);}
.back-link:hover{color:var(--brand-deep);}
.cta-side{background:linear-gradient(180deg,#EAF1F3 0%,#FFFFFF 100%);border:1px solid var(--line);}
.cta-side h3{border-left:0;padding-left:0;font-size:18px;}
.cta-side p{font-size:14px;color:var(--body);margin-bottom:16px;}
.cta-side .btn-main{width:100%;height:46px;font-size:15px;}
.side-note{font-size:12px;color:var(--muted);margin:12px 0 0;line-height:1.7;}

/* ---------- 文章底部 ---------- */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px;}
.post-nav a,.post-nav span{display:block;background:var(--card);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:18px 22px;font-size:14px;color:var(--body);transition:.25s ease;}
.post-nav a:hover{box-shadow:var(--sh-2);transform:translateY(-3px);color:var(--brand);}
.post-nav strong{display:block;font-size:12px;color:var(--muted);font-weight:600;margin-bottom:6px;letter-spacing:.4px;}
.relate-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.relate-card{background:var(--card);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;transition:.25s ease;}
.relate-card:hover{box-shadow:var(--sh-2);transform:translateY(-4px);}
.relate-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.relate-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.relate-body h3{font-size:16px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.relate-body p{font-size:13px;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.relate-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap;}
.section-head h2{position:relative;padding-bottom:12px;}
.section-head h2::after{content:"";position:absolute;left:0;bottom:0;width:44px;height:4px;border-radius:2px;background:var(--brand);}
.section-head p{font-size:14px;color:var(--muted);margin:0;}
.section-block{padding:64px 0 0;}

/* ---------- 简化 CTA ---------- */
.join-strip{margin-top:72px;background:var(--tint);border-radius:20px;padding:44px;display:grid;grid-template-columns:1.6fr 1fr;gap:36px;align-items:center;}
.join-strip h2{font-size:28px;margin-bottom:12px;}
.join-strip p{font-size:15px;color:var(--body);margin-bottom:18px;}
.tick-list{list-style:none;padding:0;margin:0;display:grid;gap:10px;}
.tick-list li{position:relative;padding-left:22px;font-size:14px;color:var(--body);}
.tick-list li::before{content:"";position:absolute;left:0;top:9px;width:10px;height:10px;border-radius:3px;background:var(--brand);opacity:.85;}
.join-side{background:#fff;border-radius:var(--r-card);box-shadow:var(--sh-1);padding:24px;}
.join-side strong{display:block;font-size:16px;color:var(--head);margin-bottom:6px;}
.join-side span{display:block;font-size:13px;color:var(--muted);margin-bottom:18px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand);color:#fff;padding:64px 0 28px;margin-top:88px;}
.foot-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}
.foot-logo{display:inline-flex;align-items:center;gap:8px;color:#fff;font-size:20px;font-weight:700;margin-bottom:14px;}
.foot-logo:hover{color:#fff;}
.site-footer h4{font-size:15px;font-weight:600;color:#fff;margin:0 0 14px;}
.site-footer p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.8);margin:0;}
.site-footer ul{list-style:none;padding:0;margin:0;}
.site-footer li{font-size:14px;line-height:1.9;color:rgba(255,255,255,.8);}
.site-footer a{color:rgba(255,255,255,.8);}
.site-footer a:hover{color:#fff;}
.foot-bottom{border-top:1px solid rgba(255,255,255,.15);margin-top:36px;padding-top:20px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.7);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .article-head h1{font-size:34px;}
}
@media (max-width:991px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-cta-sm{display:inline-flex;}
  .brand{margin-right:auto;}
  .article-layout{padding-top:32px;}
  .panel{padding:26px 22px;}
  .join-strip{grid-template-columns:1fr;padding:32px 24px;}
  .relate-grid{grid-template-columns:1fr 1fr;}
  .foot-top{grid-template-columns:1fr 1fr;gap:26px;}
  .article-head h1{font-size:30px;}
}
@media (max-width:767px){
  .wrap{padding:0 16px;}
  .nav-inner{padding:0 16px;height:64px;gap:12px;}
  .count-inner{padding:0 16px;gap:10px;min-height:46px;}
  .count-title{max-width:38vw;font-size:13px;}
  .count-nums{margin-left:0;gap:4px;}
  .count-box{font-size:13px;padding:2px 6px;min-width:26px;}
  .count-link{padding:3px 10px;font-size:12px;}
  h1{font-size:30px;}
  h2{font-size:24px;}
  .article-head{padding:16px 0 24px;}
  .article-head h1{font-size:26px;line-height:1.35;}
  .article-meta{gap:12px;font-size:12px;}
  .panel{padding:22px 18px;}
  .reading > h2{font-size:22px;}
  .reading h3{font-size:18px;}
  .post-nav{grid-template-columns:1fr;}
  .relate-grid{grid-template-columns:1fr;}
  .join-strip{margin-top:52px;}
  .join-strip h2{font-size:23px;}
  .section-block{padding-top:48px;}
  .section-head{margin-bottom:20px;}
  .site-footer{margin-top:56px;padding:48px 0 24px;}
  .foot-top{grid-template-columns:1fr 1fr;}
  .foot-bottom{flex-direction:column;}
}
@media (max-width:520px){
  .foot-top{grid-template-columns:1fr;}
  .count-title{display:none;}
  .count-nums{margin-left:auto;}
}

/* roulang page: category1 */
:root{
  --bs-primary:#17516B;
  --bs-body-color:#4A5A63;
  --bs-border-radius:16px;
  --bs-link-color:#17516B;
  --bs-link-hover-color:#E2593B;
  --brand:#17516B;
  --brand-deep:#124054;
  --accent:#E2593B;
  --accent-dark:#C9482C;
  --tint:#EAF1F3;
  --page:#FBFAF8;
  --sand:#F3EFE9;
  --ink:#10222B;
  --body:#4A5A63;
  --muted:#7C8B93;
  --line:#E4E8EA;
  --card:#FFFFFF;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 2px 6px rgba(16,34,43,.06),0 12px 32px -12px rgba(16,34,43,.12);
  --shadow-hover:0 6px 14px rgba(16,34,43,.10),0 18px 40px -14px rgba(16,34,43,.18);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--body);
  background:var(--page);
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .25s ease}
a:hover{color:var(--accent)}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:700;letter-spacing:.2px}
h1{font-size:44px;line-height:1.2;font-weight:700}
h2{font-size:32px;line-height:1.3}
h3{font-size:20px;line-height:1.5;font-weight:600}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 导航 ---------- */
.site-nav{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-nav.is-scrolled{box-shadow:0 6px 18px -8px rgba(16,34,43,.22)}
.nav-inner{
  max-width:1200px;margin:0 auto;padding:0 24px;
  height:72px;display:flex;align-items:center;gap:20px;
}
.brand{
  display:inline-flex;align-items:center;gap:9px;
  font-size:20px;font-weight:800;letter-spacing:.5px;
  color:var(--brand);white-space:nowrap;
}
.brand:hover{color:var(--brand)}
.brand-dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--accent);display:inline-block;flex:none;
}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-links a{
  position:relative;
  font-size:15px;color:var(--ink);
  padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-links a:hover,.nav-links a.is-active{color:var(--brand)}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1)}
.nav-cta{
  margin-left:28px;
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 24px;border-radius:12px;
  background:var(--accent);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 8px 18px -10px rgba(226,89,59,.9);
  transition:background .25s ease,transform .25s ease,box-shadow .25s ease;
  white-space:nowrap;
}
.nav-cta:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px)}
.nav-cta:active{transform:translateY(0)}
.nav-cta-sm{
  display:none;
  align-items:center;justify-content:center;
  height:38px;padding:0 16px;border-radius:10px;
  background:var(--accent);color:#fff;font-size:14px;font-weight:600;
}
.nav-cta-sm:hover{background:var(--accent-dark);color:#fff}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:12px;
  border:1.5px solid var(--line);background:#fff;
  align-items:center;justify-content:center;
  cursor:pointer;transition:border-color .25s ease,background .25s ease;
}
.nav-toggle:hover{border-color:var(--brand);background:var(--tint)}
.nav-toggle span{
  position:relative;width:18px;height:2px;background:var(--brand);border-radius:2px;
  display:block;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand);border-radius:2px;
  transition:transform .25s ease,top .25s ease;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle.is-open span{background:transparent}
.nav-toggle.is-open span::before{top:0;transform:rotate(45deg)}
.nav-toggle.is-open span::after{top:0;transform:rotate(-45deg)}
.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:8px 24px 18px;
}
.mobile-panel.is-open{display:block}
.mobile-panel a{
  display:flex;align-items:center;
  min-height:48px;padding:0 4px;
  font-size:16px;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-panel a:last-child{border-bottom:none}
.mobile-panel a:hover,.mobile-panel a.is-active{color:var(--brand)}

/* ---------- Banner ---------- */
.page-banner{
  position:relative;
  overflow:hidden;
  background:var(--brand-deep);
  isolation:isolate;
}
.page-banner .banner-img{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;object-position:center;
  z-index:-2;
}
.page-banner::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(100deg,rgba(23,81,107,.90) 0%,rgba(23,81,107,.74) 48%,rgba(23,81,107,.52) 100%);
}
.banner-inner{
  padding-top:34px;padding-bottom:56px;
  color:#fff;
}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.82);
  margin-bottom:26px;
}
.crumb a{color:rgba(255,255,255,.82)}
.crumb a:hover{color:#fff}
.crumb .sep{color:rgba(255,255,255,.5)}
.page-banner h1{
  color:#fff;
  max-width:760px;
  font-size:44px;line-height:1.22;
  text-shadow:none;
}
.page-banner h1 .hl{
  display:inline-block;
  position:relative;
}
.page-banner h1 .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:4px;height:4px;
  background:var(--accent);border-radius:2px;
}
.banner-sub{
  margin-top:18px;
  max-width:660px;
  font-size:17px;line-height:1.8;
  color:rgba(255,255,255,.92);
}
.banner-tags{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:26px;
}
.banner-tags span{
  display:inline-flex;align-items:center;
  height:32px;padding:0 14px;border-radius:999px;
  font-size:13px;color:#fff;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.28);
}

/* ---------- 通用板块 ---------- */
.sec{padding:88px 0}
.sec-tint{background:var(--tint)}
.sec-sand{background:var(--sand)}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1px;
  color:var(--brand);margin-bottom:14px;
}
.sec-head .eyebrow::before{
  content:"";width:22px;height:2px;background:var(--accent);border-radius:2px;
}
.sec-head h2{position:relative;padding-left:16px}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  background:var(--brand);border-radius:2px;
}
.sec-head p{margin-top:14px;color:var(--body);font-size:16px}

/* ---------- 分类说明 ---------- */
.intro-grid{display:grid;grid-template-columns:0.9fr 1.6fr;gap:48px;align-items:start}
.intro-lead h2{font-size:32px;line-height:1.32}
.intro-lead .lead-line{
  margin-top:20px;height:4px;width:64px;background:var(--accent);border-radius:2px;
}
.intro-lead .lead-note{
  margin-top:22px;font-size:14px;color:var(--muted);
}
.intro-text p+p{margin-top:20px}
.intro-text p{font-size:16px;line-height:1.9;color:var(--body)}

/* ---------- 数据条 ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:20px;margin-top:52px;
}
.stat{
  background:var(--card);
  border-radius:var(--radius);
  padding:26px 24px;
  box-shadow:var(--shadow);
  transition:box-shadow .25s ease,transform .25s ease;
}
.stat:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.stat .num{
  font-size:34px;font-weight:700;color:var(--brand);
  line-height:1.1;font-variant-numeric:tabular-nums;
}
.stat .num small{font-size:15px;font-weight:600;margin-left:4px;color:var(--muted)}
.stat .lbl{margin-top:10px;font-size:14px;color:var(--muted)}

/* ---------- 图卡网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.event-card{
  background:var(--card);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow);
  display:flex;flex-direction:column;
  transition:box-shadow .25s ease,transform .25s ease;
}
.event-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.event-card .thumb{
  position:relative;width:100%;aspect-ratio:16/10;overflow:hidden;
}
.event-card .thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .35s ease;
}
.event-card:hover .thumb img{transform:scale(1.04)}
.event-card .thumb .tag{
  position:absolute;left:14px;top:14px;
  height:26px;padding:0 12px;border-radius:999px;
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:600;color:#fff;
  background:var(--accent);
}
.event-card .body{padding:24px;display:flex;flex-direction:column;flex:1}
.event-card h3{font-size:20px;line-height:1.5;margin-bottom:12px}
.event-card .desc{
  font-size:15px;line-height:1.8;color:var(--body);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;
}
.event-card .meta{
  display:flex;align-items:center;gap:10px;
  margin-top:18px;font-size:13px;color:var(--muted);
}
.event-card .meta .dot{
  width:4px;height:4px;border-radius:50%;background:var(--line);
}
.event-card .more{
  margin-top:auto;padding-top:20px;
  font-size:14px;font-weight:600;color:var(--brand);
  display:inline-flex;align-items:center;gap:6px;
}
.event-card .more .arrow{transition:transform .25s ease}
.event-card:hover .more .arrow{transform:translateX(4px)}

/* ---------- 要点清单 ---------- */
.check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px 40px}
.check-item{
  position:relative;
  padding-left:26px;
  padding-bottom:18px;
  border-bottom:1px solid var(--line);
}
.check-item::before{
  content:"";position:absolute;left:0;top:11px;
  width:10px;height:10px;border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 0 4px rgba(23,81,107,.10);
}
.check-item h3{font-size:18px;margin-bottom:6px}
.check-item p{font-size:15px;line-height:1.8;color:var(--body)}

/* ---------- FAQ ---------- */
.faq-box{
  background:var(--card);
  border-radius:var(--radius);
  padding:10px 28px;
  box-shadow:var(--shadow);
}
.accordion-item{
  background:transparent;border:none;
  border-bottom:1px solid var(--line);
}
.accordion-item:last-child{border-bottom:none}
.accordion-button{
  background:transparent;
  font-size:17px;font-weight:600;color:var(--ink);
  padding:22px 0 22px 16px;
  box-shadow:none;
  border-radius:0;
}
.accordion-button:not(.collapsed){
  background:transparent;color:var(--brand);box-shadow:none;
}
.accordion-button:focus{box-shadow:none;outline:none;border-color:transparent}
.accordion-button:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.accordion-button::after{
  content:"";
  width:11px;height:11px;
  border-right:2px solid var(--brand);
  border-bottom:2px solid var(--brand);
  background:none;
  transform:rotate(45deg) translateY(-2px);
  transition:transform .25s ease;
  margin-left:auto;
  flex:none;
}
.accordion-button:not(.collapsed)::after{
  transform:rotate(-135deg) translateY(-2px);
}
.accordion-button::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:4px;
  background:var(--brand);border-radius:2px;
  opacity:0;transition:opacity .25s ease;
}
.accordion-button:not(.collapsed)::before{opacity:1}
.accordion-button{padding-left:16px;position:relative}
.accordion-body{
  padding:0 16px 22px 16px;
  font-size:15px;line-height:1.85;color:var(--body);
}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,rgba(234,241,243,.95),rgba(243,239,233,.9));
  border-radius:24px;
  padding:56px;
  display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center;
}
.cta-band h2{font-size:32px;line-height:1.32}
.cta-band .cta-desc{margin-top:16px;font-size:16px;color:var(--body);max-width:520px}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.cta-points li{
  position:relative;padding-left:24px;font-size:15px;color:var(--body);
}
.cta-points li::before{
  content:"";position:absolute;left:0;top:10px;width:8px;height:8px;
  border-radius:50%;background:var(--accent);
}
.cta-actions{display:flex;flex-direction:column;gap:14px}
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 28px;border-radius:var(--radius-sm);
  font-size:16px;font-weight:600;border:none;cursor:pointer;
  transition:background .25s ease,color .25s ease,transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.btn-main{
  background:var(--accent);color:#fff;
  box-shadow:0 10px 22px -12px rgba(226,89,59,.95);
}
.btn-main:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px)}
.btn-main:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;color:var(--brand);
  border:1.5px solid var(--brand);
}
.btn-ghost:hover{background:var(--brand);color:#fff;transform:translateY(-2px)}
.cta-actions .hint{font-size:13px;color:var(--muted);text-align:center}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand);color:#fff;
  padding:64px 0 28px;
}
.foot-logo{
  display:inline-flex;align-items:center;gap:9px;
  font-size:20px;font-weight:800;color:#fff;letter-spacing:.5px;
}
.foot-logo:hover{color:#fff}
.foot-top{
  display:grid;grid-template-columns:1.6fr 1fr 1.2fr 1.2fr;
  gap:40px;
}
.foot-top h4{
  color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;
}
.foot-top p{
  margin-top:16px;font-size:14px;line-height:1.85;
  color:rgba(255,255,255,.8);max-width:340px;
}
.foot-top ul li{
  font-size:14px;line-height:1.9;color:rgba(255,255,255,.8);
  margin-bottom:6px;
}
.foot-top ul li a{color:rgba(255,255,255,.8)}
.foot-top ul li a:hover{color:#fff}
.foot-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.15);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.72);
}
.foot-bottom a{color:rgba(255,255,255,.72)}
.foot-bottom a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-inner{gap:16px}
  .nav-links{gap:22px}
  .nav-cta{margin-left:20px;padding:0 20px}
}
@media (max-width:991px){
  h1{font-size:36px}
  .page-banner h1{font-size:36px}
  h2{font-size:28px}
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .nav-cta-sm{display:inline-flex;margin-left:8px}
  .nav-inner{gap:10px}
  .sec{padding:64px 0}
  .intro-grid{grid-template-columns:1fr;gap:28px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .check-list{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .cta-band{grid-template-columns:1fr;padding:40px}
  .foot-top{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .wrap{padding:0 16px}
  .nav-inner{padding:0 16px;height:66px}
  .brand{font-size:18px}
  h1,.page-banner h1{font-size:30px}
  h2,.sec-head h2,.cta-band h2{font-size:24px}
  h3{font-size:18px}
  .sec{padding:52px 0}
  .banner-inner{padding-top:24px;padding-bottom:40px}
  .banner-sub{font-size:16px}
  .card-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr;gap:14px}
  .cta-band{padding:28px 22px;border-radius:18px}
  .faq-box{padding:4px 18px}
  .accordion-button{font-size:16px;padding-top:18px;padding-bottom:18px}
  .foot-top{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .mobile-panel{padding:8px 16px 16px}
}

/* roulang page: category2 */
:root{
  --brand:#17516B;
  --brand-deep:#10222B;
  --brand-soft:#EAF1F3;
  --accent:#E2593B;
  --accent-dark:#C9472B;
  --page:#FBFAF8;
  --card:#FFFFFF;
  --sand:#F3EFE9;
  --title:#10222B;
  --text:#4A5A63;
  --muted:#7C8B93;
  --line:#E4E8EA;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 2px 6px rgba(16,34,43,.06),0 12px 32px -12px rgba(16,34,43,.12);
  --shadow-2:0 6px 14px rgba(16,34,43,.10),0 18px 40px -14px rgba(16,34,43,.18);
  --bs-primary:#17516B;
  --bs-body-color:#4A5A63;
  --bs-body-bg:#FBFAF8;
  --bs-border-radius:16px;
  --bs-link-color:#17516B;
  --bs-link-hover-color:#E2593B;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--page);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .25s ease;}
a:hover{color:var(--accent);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;}

.wrap{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}

/* ---------- 按钮体系 ---------- */
.btn,
.btn:focus,
.btn:active{
  --bs-btn-focus-box-shadow:none;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  padding:12px 22px;
  border:1.5px solid transparent;
  transition:transform .25s ease,background-color .25s ease,color .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  line-height:1.2;
  box-shadow:none;
}
.btn-primary-solid{
  background:var(--accent);
  color:#fff;
}
.btn-primary-solid:hover,
.btn-primary-solid:focus{
  background:var(--accent-dark);
  color:#fff;
  transform:translateY(-2px);
}
.btn-outline-brand{
  background:transparent;
  color:var(--brand);
  border-color:var(--brand);
}
.btn-outline-brand:hover,
.btn-outline-brand:focus{
  background:var(--brand);
  color:#fff;
}
.btn-link-arrow{
  background:transparent;
  color:var(--brand);
  padding:8px 0;
  font-weight:600;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.btn-link-arrow span{transition:transform .25s ease;}
.btn-link-arrow:hover{color:var(--accent);}
.btn-link-arrow:hover span{transform:translateX(4px);}

/* ---------- 倒计时条 ---------- */
.countdown-bar{
  background:var(--accent);
  color:#fff;
  font-size:14px;
}
.countdown-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:48px;
  padding-top:6px;
  padding-bottom:6px;
}
.cd-label{
  font-weight:600;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.cd-time{
  display:flex;
  align-items:center;
  gap:8px;
  flex-shrink:0;
}
.cd-cell{
  display:inline-flex;
  align-items:baseline;
  gap:3px;
  background:rgba(255,255,255,.18);
  border-radius:8px;
  padding:4px 8px;
  font-variant-numeric:tabular-nums;
}
.cd-cell b{font-size:15px;font-weight:700;}
.cd-cell i{font-size:11px;font-style:normal;opacity:.85;}
.cd-btn{
  border:1px solid rgba(255,255,255,.75);
  border-radius:8px;
  color:#fff;
  font-size:13px;
  padding:6px 12px;
  white-space:nowrap;
  transition:background-color .25s ease,color .25s ease;
}
.cd-btn:hover{background:#fff;color:var(--accent);}

/* ---------- 导航 ---------- */
.site-nav{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-nav.is-stuck{box-shadow:0 6px 20px rgba(16,34,43,.08);}
.nav-inner{
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  height:72px;
  display:flex;
  align-items:center;
  gap:28px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:21px;
  font-weight:700;
  color:var(--brand);
  letter-spacing:.5px;
  white-space:nowrap;
}
.brand:hover{color:var(--brand);}
.brand-dot{
  width:9px;
  height:9px;
  border-radius:50%;
  background:var(--accent);
  display:inline-block;
  flex-shrink:0;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:8px;
}
.nav-links a{
  position:relative;
  font-size:15px;
  color:var(--title);
  padding:6px 0;
  font-weight:500;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-2px;
  height:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .25s ease;
  border-radius:2px;
}
.nav-links a:hover{color:var(--brand);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--brand);font-weight:600;}
.nav-links a.active::after{transform:scaleX(1);}
.nav-cta{
  margin-left:auto;
  background:var(--accent);
  color:#fff;
  height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:0 22px;
  border-radius:12px;
  font-size:15px;
  font-weight:600;
  transition:background-color .25s ease,transform .25s ease;
}
.nav-cta:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);}
.nav-cta-sm{display:none;}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1.5px solid var(--line);
  border-radius:10px;
  background:#fff;
  padding:0;
  align-items:center;
  justify-content:center;
  cursor:pointer;
}
.nav-toggle span{
  position:relative;
  display:block;
  width:18px;
  height:2px;
  background:var(--brand);
  border-radius:2px;
  transition:transform .25s ease;
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  background:var(--brand);
  border-radius:2px;
  transition:transform .25s ease;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}
.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:10px 24px 18px;
}
.mobile-panel.open{display:block;}
.mobile-panel a{
  display:flex;
  align-items:center;
  min-height:46px;
  font-size:15px;
  color:var(--title);
  border-bottom:1px solid var(--line);
}
.mobile-panel a:last-child{border-bottom:none;}
.mobile-panel a.active{color:var(--brand);font-weight:600;}

/* ---------- 页头 ---------- */
.page-head{
  padding:56px 0 12px;
}
.breadcrumb-lite{
  font-size:13px;
  color:var(--muted);
  display:flex;
  align-items:center;
  gap:6px;
  flex-wrap:wrap;
  margin-bottom:18px;
}
.breadcrumb-lite a{color:var(--muted);}
.breadcrumb-lite a:hover{color:var(--brand);}
.breadcrumb-lite i{font-style:normal;color:#B9C3C8;}
.page-head h1{
  font-size:44px;
  line-height:1.2;
  font-weight:700;
  color:var(--title);
  max-width:840px;
  position:relative;
  padding-bottom:18px;
}
.page-head h1::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:64px;
  height:4px;
  border-radius:2px;
  background:var(--brand);
}
.page-lead{
  margin-top:22px;
  max-width:780px;
  font-size:16px;
  color:var(--text);
}
.head-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
}
.badge{
  background:rgba(23,81,107,.10);
  color:var(--brand);
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  padding:6px 12px;
  line-height:1.2;
}
.badge-accent{
  background:rgba(226,89,59,.12);
  color:var(--accent-dark);
}

/* ---------- 主分栏 ---------- */
.guide-layout{
  display:grid;
  grid-template-columns:262px minmax(0,1fr);
  gap:44px;
  align-items:start;
  padding:40px 0 0;
}
.toc{
  position:sticky;
  top:96px;
  background:var(--card);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:24px 22px;
}
.toc-title{
  font-size:13px;
  letter-spacing:1.5px;
  color:var(--muted);
  font-weight:600;
  margin-bottom:14px;
}
.toc ul li + li{margin-top:2px;}
.toc a{
  display:flex;
  align-items:center;
  min-height:44px;
  font-size:15px;
  color:var(--text);
  border-left:3px solid transparent;
  padding-left:12px;
  transition:color .2s ease,border-color .2s ease,background-color .2s ease;
  border-radius:0 8px 8px 0;
}
.toc a:hover{
  color:var(--brand);
  border-left-color:var(--brand);
  background:var(--brand-soft);
}
.toc a.current{
  color:var(--brand);
  font-weight:600;
  border-left-color:var(--accent);
  background:var(--brand-soft);
}
.toc-note{
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
  line-height:1.7;
}

.flow{display:flex;flex-direction:column;gap:32px;}

.section-block{
  background:var(--card);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:34px 32px;
  transition:box-shadow .25s ease;
}
.section-block h2{
  font-size:30px;
  line-height:1.3;
  font-weight:700;
  color:var(--title);
  padding-left:14px;
  border-left:4px solid var(--brand);
  margin-bottom:20px;
}
.section-block p + p{margin-top:18px;}
.section-block p{font-size:16px;line-height:1.85;color:var(--text);}

/* 图文交替 */
.media-row{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:28px;
  align-items:center;
}
.media-row + .media-row{
  margin-top:30px;
  padding-top:30px;
  border-top:1px solid var(--line);
}
.media-row.reverse .media-figure{order:2;}
.media-figure{
  border-radius:var(--radius-img);
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.media-figure img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform .35s ease;
}
.media-figure:hover img{transform:scale(1.03);}
.media-body h3{
  font-size:20px;
  line-height:1.5;
  font-weight:600;
  color:var(--title);
  margin-bottom:12px;
}
.media-body p{font-size:15.5px;line-height:1.85;color:var(--text);}
.media-body .btn-link-arrow{margin-top:10px;font-size:14px;}

/* 深色参数面板 */
.panel-dark{
  background:var(--brand);
  color:#fff;
  border-radius:var(--radius-card);
  padding:34px 32px;
  box-shadow:var(--shadow-1);
}
.panel-dark h2{
  font-size:30px;
  line-height:1.3;
  font-weight:700;
  color:#fff;
  margin-bottom:8px;
}
.panel-dark .panel-sub{
  font-size:14px;
  color:rgba(255,255,255,.78);
  margin-bottom:26px;
}
.metric-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;
  margin-bottom:28px;
}
.metric{
  background:rgba(255,255,255,.10);
  border-radius:12px;
  padding:16px 14px;
}
.metric b{
  display:block;
  font-size:26px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.metric small{
  display:block;
  margin-top:6px;
  font-size:12.5px;
  color:rgba(255,255,255,.78);
  line-height:1.5;
}
.spec-list li{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:20px;
  padding:14px 0;
  border-top:1px solid rgba(255,255,255,.18);
  font-size:15px;
}
.spec-list li:last-child{border-bottom:1px solid rgba(255,255,255,.18);}
.spec-list .spec-key{color:rgba(255,255,255,.82);flex-shrink:0;}
.spec-list .spec-val{color:#fff;font-weight:600;text-align:right;}

/* 问答式 */
.qa-item + .qa-item{
  margin-top:24px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.qa-q{
  font-size:17px;
  font-weight:700;
  color:var(--title);
  margin-bottom:8px;
  display:flex;
  gap:10px;
}
.qa-q .qa-mark{color:var(--accent);flex-shrink:0;}
.qa-a{
  font-size:15.5px;
  line-height:1.85;
  color:var(--text);
  padding-left:24px;
}

/* ---------- 简化 CTA ---------- */
.join-band{
  margin-top:32px;
  border-radius:20px;
  padding:44px 40px;
  background-color:var(--brand-soft);
  background-image:linear-gradient(rgba(234,241,243,.94),rgba(234,241,243,.94)),url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
  box-shadow:var(--shadow-1);
  display:grid;
  grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);
  gap:32px;
  align-items:center;
}
.join-band h2{
  font-size:28px;
  line-height:1.35;
  font-weight:700;
  color:var(--title);
  margin-bottom:12px;
}
.join-band p{font-size:15.5px;color:var(--text);}
.join-list{
  margin-top:18px;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.join-list li{
  position:relative;
  padding-left:22px;
  font-size:15px;
  color:var(--text);
}
.join-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:.72em;
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--accent);
}
.join-action{
  background:#fff;
  border-radius:var(--radius-card);
  padding:28px 26px;
  box-shadow:var(--shadow-1);
}
.join-action .ja-title{
  font-size:18px;
  font-weight:700;
  color:var(--title);
  margin-bottom:8px;
}
.join-action p{font-size:14px;color:var(--muted);line-height:1.75;margin-bottom:18px;}
.join-action .btn{width:100%;}
.join-action .ja-sub{
  margin-top:14px;
  font-size:12px;
  color:var(--muted);
  text-align:center;
  line-height:1.6;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand);
  color:#fff;
  margin-top:88px;
}
.foot-top{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:36px;
  padding:64px 0 40px;
}
.foot-logo{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:20px;
  font-weight:700;
  color:#fff;
  margin-bottom:14px;
}
.foot-logo:hover{color:#fff;}
.foot-top p{
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.80);
  max-width:320px;
}
.foot-top h4{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.foot-top ul li{
  font-size:14px;
  color:rgba(255,255,255,.80);
  line-height:1.9;
}
.foot-top ul li a{
  color:rgba(255,255,255,.80);
}
.foot-top ul li a:hover{color:#fff;}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.15);
  padding:22px 0 30px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.75);
}
.foot-bottom a{color:rgba(255,255,255,.75);}
.foot-bottom a:hover{color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .page-head h1{font-size:38px;}
  .guide-layout{grid-template-columns:230px minmax(0,1fr);gap:32px;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;order:3;margin-left:8px;}
  .nav-cta{display:none;}
  .nav-cta-sm{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    margin-left:auto;
    height:38px;
    padding:0 16px;
    border-radius:10px;
    background:var(--accent);
    color:#fff;
    font-size:14px;
    font-weight:600;
  }
  .nav-cta-sm:hover{background:var(--accent-dark);color:#fff;}
  .nav-inner{height:66px;gap:14px;}
  .guide-layout{grid-template-columns:minmax(0,1fr);gap:28px;padding-top:32px;}
  .toc{position:static;}
  .toc ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 12px;}
  .media-row{grid-template-columns:minmax(0,1fr);gap:18px;}
  .media-row.reverse .media-figure{order:0;}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .join-band{grid-template-columns:minmax(0,1fr);padding:34px 26px;}
  .foot-top{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;padding:48px 0 32px;}
}
@media (max-width:767px){
  .wrap{padding:0 16px;}
  .nav-inner{padding:0 16px;}
  .mobile-panel{padding:10px 16px 18px;}
  .countdown-inner{padding:8px 0;min-height:44px;}
  .cd-label{display:none;}
  .cd-time{margin-left:auto;}
  .page-head{padding:38px 0 4px;}
  .page-head h1{font-size:30px;padding-bottom:16px;}
  .page-head h1::after{width:48px;}
  .page-lead{font-size:15.5px;margin-top:18px;}
  .section-block{padding:26px 20px;}
  .section-block h2{font-size:24px;margin-bottom:16px;}
  .panel-dark{padding:26px 20px;}
  .panel-dark h2{font-size:24px;}
  .metric b{font-size:22px;}
  .spec-list li{flex-direction:column;gap:4px;font-size:14.5px;}
  .spec-list .spec-val{text-align:left;}
  .join-band h2{font-size:23px;}
  .site-footer{margin-top:52px;}
  .foot-top{grid-template-columns:minmax(0,1fr);padding:40px 0 28px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
}
@media (max-width:520px){
  .toc ul{grid-template-columns:minmax(0,1fr);}
  .metric-grid{grid-template-columns:minmax(0,1fr);}
  .badge{font-size:11.5px;padding:5px 10px;}
}