/* roulang page: index */
:root{
  --brand-600:#1554C0;--brand-500:#2568D8;--brand-700:#0F4298;
  --brand-50:#EEF4FF;--brand-100:#DCE8FA;--brand-200:#C3D6F5;
  --coral-500:#FF7A45;--coral-50:#FFF2EC;
  --bg:#F7F9FC;--surface:#FFFFFF;
  --ink:#0F172A;--ink-2:#475569;--ink-3:#94A3B8;
  --line:#E4EAF2;--input:#D6DEEA;
  --r-card:16px;--r-img:12px;--r-btn:10px;--r-pill:999px;
  --sh-sm:0 1px 2px rgba(15,23,42,.04);
  --sh-md:0 6px 18px rgba(15,23,42,.06);
  --sh-lg:0 16px 36px rgba(15,23,42,.10);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.8;font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4,p,figure,ul,ol{margin:0;padding:0}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:4px}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head h2{font-size:clamp(24px,2.6vw,30px);line-height:1.35;font-weight:600;letter-spacing:-.2px}
.section-desc{color:var(--ink-2);font-size:15px;margin-top:10px;max-width:640px}
.text-link{color:var(--brand-600);font-size:15px;font-weight:500;display:inline-flex;align-items:center;gap:6px;transition:color .18s ease-out}
.text-link::after{content:"→";transition:transform .18s ease-out}
.text-link:hover{color:var(--brand-700)}
.text-link:hover::after{transform:translateX(3px)}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);
  border-bottom:1px solid var(--line);backdrop-filter:saturate(180%) blur(10px);
  transition:box-shadow .2s ease-out,background .2s ease-out;
}
.site-header.is-scrolled{background:#fff;box-shadow:0 6px 18px rgba(15,23,42,.06)}
.header-inner{display:flex;align-items:center;gap:32px;height:72px}
.logo{display:inline-flex;align-items:center;gap:8px;font-size:18px;font-weight:700;color:var(--ink);flex-shrink:0}
.logo-mark{width:28px;height:28px;border-radius:8px;background:var(--brand-600);position:relative;flex-shrink:0}
.logo-mark::before,.logo-mark::after{content:"";position:absolute;background:#fff;border-radius:1px}
.logo-mark::before{left:7px;right:7px;top:9px;height:2px}
.logo-mark::after{left:7px;right:7px;bottom:9px;height:2px}
.main-nav{display:flex;align-items:center;gap:32px;margin-left:auto}
.nav-link{font-size:15px;font-weight:500;color:var(--ink-2);padding:6px 10px;border-radius:8px;position:relative;transition:color .18s ease-out,background .18s ease-out}
.nav-link:hover{color:var(--brand-600);background:var(--brand-50)}
.nav-link.is-active{color:var(--brand-600);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:10px;right:10px;bottom:-2px;height:2px;background:var(--brand-600);border-radius:2px}
.nav-cta{flex-shrink:0}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:10px;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out}
.nav-toggle[aria-expanded="true"] span:first-child{transform:translateY(3.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:last-child{transform:translateY(-3.5px) rotate(-45deg)}

.drawer-mask{position:fixed;inset:0;background:rgba(15,23,42,.42);opacity:0;visibility:hidden;transition:opacity .2s ease-out;z-index:70}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:280px;background:#fff;z-index:80;transform:translateX(100%);transition:transform .24s ease-out;display:flex;flex-direction:column;padding:20px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;font-size:18px;line-height:1;color:var(--ink-2)}
.drawer-nav{margin:8px 0 16px}
.drawer-nav a{display:flex;align-items:center;height:48px;font-size:15px;font-weight:500;color:var(--ink-2);border-bottom:1px solid var(--line)}
.drawer-nav a.is-active{color:var(--brand-600);font-weight:600}

/* ============ Buttons ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s ease-out,background .18s ease-out,box-shadow .18s ease-out,color .18s ease-out,border-color .18s ease-out;white-space:nowrap}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--sh-sm)}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-2px);box-shadow:var(--sh-md)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-sm)}
.btn-ghost{background:#fff;color:var(--brand-600);border-color:var(--brand-600)}
.btn-ghost:hover{background:var(--brand-50);transform:translateY(-2px);box-shadow:var(--sh-md)}
.btn-ghost:active{transform:translateY(0)}
.btn-block{width:100%}

/* ============ Badges / tags ============ */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);font-size:12px;font-weight:600;line-height:1.6}
.badge-soft{background:var(--brand-50);color:var(--brand-600)}
.badge-live{background:var(--coral-50);color:#D9541F}
.badge-ended{background:#F1F5F9;color:var(--ink-3)}
.dot-pulse{width:7px;height:7px;border-radius:50%;background:var(--coral-500);position:relative}
.dot-pulse::after{content:"";position:absolute;inset:-4px;border-radius:50%;border:2px solid var(--coral-500);opacity:.5;animation:pulse 1.6s ease-out infinite}
@keyframes pulse{0%{transform:scale(.6);opacity:.6}100%{transform:scale(1.5);opacity:0}}
.tag{display:inline-block;padding:3px 10px;border-radius:var(--r-pill);background:var(--brand-50);color:var(--brand-600);font-size:12px;font-weight:600}

/* ============ Hero ============ */
.hero{
  background:linear-gradient(180deg,#F2F6FE 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
  position:relative;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.07;pointer-events:none;
}
.hero-inner{position:relative;padding:76px 0 80px}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--brand-100);color:var(--brand-600);font-size:13px;font-weight:600;padding:6px 14px;border-radius:var(--r-pill);box-shadow:var(--sh-sm)}
.hero h1{font-size:clamp(30px,4vw,44px);line-height:1.25;font-weight:700;letter-spacing:-.5px;margin-top:20px;color:var(--ink)}
.hero-sub{margin-top:16px;font-size:17px;color:var(--ink-2);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:34px;padding-top:26px;border-top:1px solid var(--line)}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2)}
.hero-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-500);flex-shrink:0}
.cover-card{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-lg);background:#fff}
.cover-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.cover-card .badge{position:absolute;right:14px;bottom:14px;box-shadow:var(--sh-sm);background:#fff}

/* ============ Live block ============ */
.live-top{display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:stretch}
.live-cover{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-md);background:#fff}
.live-cover img{width:100%;height:100%;min-height:260px;object-fit:cover;aspect-ratio:16/9}
.live-cover .badge{position:absolute;left:14px;top:14px;background:#fff;box-shadow:var(--sh-sm)}
.countdown-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-sm);display:flex;flex-direction:column;justify-content:center}
.countdown-title{font-size:14px;color:var(--ink-2);margin-bottom:14px;font-weight:500}
.countdown{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.cd-block{background:var(--brand-50);border-radius:12px;padding:16px 6px;text-align:center;transition:background .2s ease-out}
.cd-num{display:block;font-size:36px;font-weight:700;line-height:1.1;color:var(--brand-700);font-variant-numeric:tabular-nums}
.cd-label{display:block;font-size:12px;color:var(--ink-3);margin-top:6px}
.countdown.is-live .cd-block{background:var(--coral-50)}
.countdown.is-live .cd-num{color:#D9541F}
.countdown.is-ended .cd-block{background:#F1F5F9}
.countdown.is-ended .cd-num{color:var(--ink-3)}
.countdown-note{margin-top:14px;font-size:13px;color:var(--ink-3)}
.highlights{margin-top:48px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-sm);overflow:hidden}
.highlights-head{padding:20px 24px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px}
.highlights-head h3{font-size:18px;font-weight:600}
.highlight{display:flex;gap:20px;padding:18px 24px;border-bottom:1px solid var(--line)}
.highlight:last-child{border-bottom:none}
.hl-num{font-size:24px;font-weight:700;color:var(--brand-200);line-height:1.4;min-width:44px;font-variant-numeric:tabular-nums}
.hl-body h4{font-size:17px;font-weight:600;line-height:1.5}
.hl-body p{font-size:14px;color:var(--ink-2);margin-top:4px}
.highlights-foot{padding:16px 24px;background:#FBFCFE;border-top:1px solid var(--line)}

/* subscribe */
.subscribe{margin-top:40px;background:var(--brand-50);border-radius:var(--r-card);padding:28px;display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center}
.subscribe h3{font-size:20px;font-weight:600;line-height:1.5}
.subscribe p{font-size:14px;color:var(--ink-2);margin-top:8px}
.sub-form{display:flex;gap:10px}
.sub-input{flex:1;height:46px;padding:0 14px;border:1px solid var(--input);border-radius:var(--r-btn);background:#fff;font-size:15px;transition:border-color .18s ease-out,box-shadow .18s ease-out}
.sub-input::placeholder{color:var(--ink-3)}
.sub-input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(37,104,216,.14)}
.sub-input.is-error{border-color:#DC2626;box-shadow:0 0 0 3px rgba(220,38,38,.10)}
.sub-form .btn{height:46px;padding:0 22px}
.form-msg{margin-top:10px;font-size:14px;min-height:20px}
.form-msg.is-error{color:#DC2626}
.form-msg.is-success{color:#C2540F;background:var(--coral-50);border-radius:8px;padding:8px 12px}

/* replays */
.replay-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:32px}
.replay-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);transition:transform .18s ease-out,box-shadow .18s ease-out}
.replay-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.replay-thumb{position:relative}
.replay-thumb img{aspect-ratio:16/9;object-fit:cover;width:100%}
.duration{position:absolute;right:10px;bottom:10px;background:rgba(15,23,42,.78);color:#fff;font-size:12px;font-weight:600;padding:2px 8px;border-radius:6px;font-variant-numeric:tabular-nums}
.replay-body{padding:18px 20px 20px}
.replay-body h4{font-size:16px;font-weight:600;line-height:1.55}
.replay-body .meta{font-size:13px;color:var(--ink-3);margin-top:8px}

/* ============ CMS posts ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);display:flex;flex-direction:column;transition:transform .18s ease-out,box-shadow .18s ease-out}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.post-thumb img{aspect-ratio:16/9;object-fit:cover;width:100%}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-title{font-size:17px;font-weight:600;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-title a{transition:color .18s ease-out}
.post-card:hover .post-title a{color:var(--brand-600)}
.post-excerpt{font-size:14px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.post-meta{font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:10px;padding-top:4px}
.empty-state{grid-column:1/-1;text-align:center;padding:56px 24px;border:1px dashed var(--line);border-radius:var(--r-card);background:#fff}
.empty-icon{width:44px;height:44px;margin:0 auto 14px;border-radius:12px;border:2px solid var(--brand-100);position:relative}
.empty-icon::before{content:"";position:absolute;left:10px;right:10px;top:15px;height:2px;background:var(--brand-100)}
.empty-icon::after{content:"";position:absolute;left:10px;right:20px;top:24px;height:2px;background:var(--brand-100)}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:18px}

/* ============ Channels ============ */
.channel-list{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:#fff}
.channel{display:flex;flex-direction:column;gap:8px;padding:24px 22px;border-right:1px solid var(--line);transition:background .18s ease-out}
.channel:last-child{border-right:none}
.channel:hover{background:var(--brand-50)}
.channel-icon{width:36px;height:36px;border-radius:10px;background:var(--brand-50);color:var(--brand-600);display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700}
.channel:hover .channel-icon{background:#fff}
.channel h3{font-size:16px;font-weight:600;margin-top:2px}
.channel p{font-size:13px;color:var(--ink-2)}

/* ============ Stats ============ */
.stats{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:34px 24px;border-right:1px solid var(--line)}
.stat:last-child{border-right:none}
.stat-num{display:block;font-size:32px;font-weight:700;color:var(--brand-700);line-height:1.2;font-variant-numeric:tabular-nums}
.stat-label{display:block;font-size:14px;color:var(--ink-2);margin-top:6px}

/* ============ FAQ ============ */
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:box-shadow .18s ease-out,background .18s ease-out}
.faq-item.is-open{background:#F8FAFC;box-shadow:var(--sh-sm)}
.faq-q{width:100%;background:none;border:none;text-align:left;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;font-size:16px;font-weight:600;cursor:pointer;line-height:1.6}
.faq-icon{position:relative;width:20px;height:20px;flex-shrink:0}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-600);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out}
.faq-icon::before{left:0;right:0;top:9px;height:2px}
.faq-icon::after{top:0;bottom:0;left:9px;width:2px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease-out}
.faq-a-inner{padding:0 22px 20px;font-size:15px;color:var(--ink-2)}

/* ============ CTA ============ */
.cta-card{background:var(--brand-50);border:1px solid var(--brand-100);border-radius:var(--r-card);padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.cta-card h2{font-size:clamp(20px,2.4vw,26px);font-weight:600;line-height:1.45}
.cta-card p{font-size:15px;color:var(--ink-2);margin-top:10px;max-width:560px}

/* ============ Footer ============ */
.site-footer{background:#F1F5FB;border-top:1px solid var(--line);padding:56px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:36px;padding-bottom:40px}
.footer-brand .logo{margin-bottom:14px}
.footer-brand p{font-size:14px;color:var(--ink-2);max-width:320px}
.footer h4{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:14px;letter-spacing:.2px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:var(--ink-2);transition:color .18s ease-out}
.footer-links a:hover{color:var(--brand-600)}
.footer-sub-form{display:flex;gap:8px;margin-top:12px}
.footer-sub-form input{flex:1;height:42px;padding:0 12px;border:1px solid var(--input);border-radius:var(--r-btn);background:#fff;font-size:14px}
.footer-sub-form input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(37,104,216,.14)}
.footer-sub-form button{height:42px;padding:0 16px;border-radius:var(--r-btn);border:none;background:var(--brand-600);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:background .18s ease-out}
.footer-sub-form button:hover{background:var(--brand-700)}
.footer-bottom{border-top:1px solid var(--line);padding:18px 0;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;align-items:center}
.footer-bottom p,.footer-bottom span{font-size:13px;color:var(--ink-3)}

/* ============ Responsive ============ */
@media (max-width:1023px){
  .main-nav,.nav-cta{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .header-inner{height:64px}
  .section{padding:64px 0}
  .hero-inner{padding:56px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-media{order:2}
  .live-top{grid-template-columns:1fr}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .replay-grid{grid-template-columns:repeat(2,1fr)}
  .channel-list{grid-template-columns:repeat(2,1fr)}
  .channel:nth-child(2n){border-right:none}
  .channel:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2n){border-right:none}
  .stat:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .subscribe{grid-template-columns:1fr;gap:20px}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:639px){
  .wrap{padding:0 16px}
  .section{padding:44px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px}
  .hero-inner{padding:40px 0 48px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{width:100%}
  .post-grid{grid-template-columns:1fr}
  .replay-grid{display:flex;gap:16px;overflow-x:auto;padding-bottom:8px;scroll-snap-type:x mandatory}
  .replay-card{min-width:80%;scroll-snap-align:start}
  .channel-list{grid-template-columns:repeat(2,1fr)}
  .channel{padding:18px 16px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat{padding:22px 16px}
  .stat-num{font-size:26px}
  .countdown{gap:6px}
  .cd-num{font-size:28px}
  .cd-block{padding:12px 4px}
  .sub-form{flex-direction:column}
  .sub-form .btn{width:100%}
  .cta-card{flex-direction:column;align-items:flex-start;padding:26px 22px}
  .cta-card .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-sub-form{flex-direction:column}
  .footer-sub-form button{width:100%}
  .highlight{padding:16px 18px;gap:14px}
  .highlights-head,.highlights-foot{padding-left:18px;padding-right:18px}
}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .btn:hover,.post-card:hover,.replay-card:hover{transform:none}
}

/* roulang page: article */
:root{
  --brand-600:#1554C0;
  --brand-500:#2568D8;
  --brand-700:#0F4298;
  --brand-50:#EEF4FF;
  --brand-100:#DCE8FA;
  --coral-500:#FF7A45;
  --coral-50:#FFF2EC;
  --bg:#F7F9FC;
  --surface:#FFFFFF;
  --ink:#0F172A;
  --ink-2:#475569;
  --ink-3:#94A3B8;
  --line:#E4EAF2;
  --input-border:#D6DEEA;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --sh-sm:0 1px 2px rgba(15,23,42,.04);
  --sh-md:0 6px 18px rgba(15,23,42,.06);
  --sh-lg:0 16px 36px rgba(15,23,42,.10);
  --t:180ms ease-out;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
.site-body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
.site-body img{max-width:100%;display:block;}
.site-body a{color:inherit;text-decoration:none;}
.site-body button,.site-body input,.site-body textarea{font:inherit;}
.site-body :focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:6px;}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 24px;}
.tnum{font-variant-numeric:tabular-nums;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t),background var(--t);
}
.site-header.is-scrolled{box-shadow:var(--sh-md);background:#fff;}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px;}
.logo{display:flex;align-items:center;gap:8px;}
.logo-mark{
  width:28px;height:28px;border-radius:8px;background:var(--brand-600);
  position:relative;flex:0 0 28px;
}
.logo-mark::before,.logo-mark::after{
  content:"";position:absolute;background:#fff;border-radius:2px;
}
.logo-mark::before{left:7px;right:7px;top:9px;height:2px;}
.logo-mark::after{left:7px;right:7px;top:17px;height:2px;}
.logo-text{font-size:18px;font-weight:700;letter-spacing:.2px;color:var(--ink);}
.main-nav{display:flex;align-items:center;gap:32px;}
.nav-link{
  font-size:15px;font-weight:500;color:var(--ink-2);
  padding:8px 10px;border-radius:8px;position:relative;
  transition:color var(--t),background var(--t);
}
.nav-link:hover{color:var(--brand-600);background:var(--brand-50);}
.nav-link.is-active{color:var(--brand-600);font-weight:600;background:var(--brand-50);}
.nav-link.is-active::after{
  content:"";position:absolute;left:10px;right:10px;bottom:2px;height:2px;
  border-radius:2px;background:var(--brand-600);
}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;cursor:pointer;position:relative;align-items:center;justify-content:center;
  transition:border-color var(--t),background var(--t);
}
.nav-toggle:hover{border-color:var(--brand-100);background:var(--brand-50);}
.nav-toggle span{
  position:absolute;left:12px;right:12px;height:2px;border-radius:2px;background:var(--ink);
}
.nav-toggle span:first-child{top:17px;}
.nav-toggle span:last-child{top:25px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--sh-sm);}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-2px);box-shadow:var(--sh-md);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--brand-600);border-color:var(--brand-600);}
.btn-ghost:hover{background:var(--brand-50);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:9px 16px;font-size:14px;}

/* ---------- Mobile drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,23,42,.42);
  opacity:0;pointer-events:none;transition:opacity var(--t);z-index:55;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.mobile-drawer{
  position:fixed;top:0;right:0;width:280px;height:100%;background:#fff;z-index:60;
  transform:translateX(100%);transition:transform 240ms ease-out;
  box-shadow:var(--sh-lg);padding:20px;display:flex;flex-direction:column;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.drawer-close{
  width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:#fff;cursor:pointer;font-size:18px;color:var(--ink-2);line-height:1;
}
.drawer-link{
  height:48px;display:flex;align-items:center;font-size:16px;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.drawer-link.is-active{color:var(--brand-600);font-weight:600;}
.drawer-cta{margin-top:20px;width:100%;}

/* ---------- Breadcrumb ---------- */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-3);padding:20px 0 0;
}
.crumb a{color:var(--ink-3);transition:color var(--t);}
.crumb a:hover{color:var(--brand-600);}
.crumb .sep{color:#CBD5E1;}
.crumb .current{color:var(--ink-2);}

/* ---------- Article header ---------- */
.article-hero{
  background-color:var(--brand-50);
  background-image:linear-gradient(180deg,rgba(255,255,255,.86),rgba(255,255,255,.96)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.article-hero-inner{padding:8px 0 48px;max-width:860px;}
.cat-badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-50);color:var(--brand-600);font-size:12px;font-weight:600;
  border:1px solid var(--brand-100);
}
.article-title{
  margin:16px 0 0;font-size:clamp(28px,3.6vw,42px);line-height:1.35;font-weight:700;color:var(--ink);
  letter-spacing:-.2px;
}
.article-lead{margin:16px 0 0;font-size:16px;color:var(--ink-2);max-width:760px;}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px;
  font-size:14px;color:var(--ink-3);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#CBD5E1;display:inline-block;}

/* ---------- Article body ---------- */
.article-section{padding:56px 0 72px;}
.article-shell{max-width:760px;margin:0 auto;}
.article-cover{
  border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-md);margin-bottom:36px;
  border:1px solid var(--line);background:#fff;
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.article-cover figcaption{
  font-size:13px;color:var(--ink-3);text-align:center;padding:12px 16px;background:#fff;border-top:1px solid var(--line);
}
.article-body{
  font-size:16px;line-height:1.85;color:#1F2937;overflow-wrap:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 20px;}
.article-body h2{
  font-size:28px;line-height:1.4;font-weight:600;color:var(--ink);
  margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--brand-600);
}
.article-body h3{font-size:20px;line-height:1.5;font-weight:600;color:var(--ink);margin:32px 0 14px;}
.article-body h4{font-size:17px;font-weight:600;color:var(--ink);margin:24px 0 12px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;}
.article-body li{margin:8px 0;}
.article-body a{color:var(--brand-600);border-bottom:1px solid var(--brand-100);transition:border-color var(--t);}
.article-body a:hover{border-color:var(--brand-600);}
.article-body img{border-radius:var(--r-img);margin:24px auto;box-shadow:var(--sh-sm);}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px;}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;background:var(--brand-50);
  border-left:3px solid var(--brand-600);border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:14px;
  border:1px solid var(--line);border-radius:var(--r-img);overflow:hidden;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.article-body th{background:var(--brand-50);color:var(--ink);font-weight:600;}
.article-body code{
  background:#F1F5F9;border-radius:6px;padding:2px 6px;font-size:14px;color:var(--brand-700);
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

.empty-state{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:48px 24px;text-align:center;box-shadow:var(--sh-sm);
}
.empty-state p{margin:0 0 20px;font-size:17px;color:var(--ink-2);}

/* ---------- Post footer area ---------- */
.post-foot{margin-top:48px;padding-top:32px;border-top:1px solid var(--line);}
.tag-block{display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.tag-block .label{font-size:14px;color:var(--ink-3);}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13px;color:var(--ink-2);
  transition:border-color var(--t),color var(--t),background var(--t);
}
.tag:hover{border-color:var(--brand-100);color:var(--brand-600);background:var(--brand-50);}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px;}
.post-nav a{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 20px;box-shadow:var(--sh-sm);display:flex;flex-direction:column;gap:6px;
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.post-nav a:hover{box-shadow:var(--sh-md);transform:translateY(-2px);border-color:var(--brand-100);}
.post-nav .dir{font-size:13px;color:var(--ink-3);}
.post-nav .tt{font-size:15px;font-weight:600;color:var(--ink);line-height:1.6;}
.post-nav a:hover .tt{color:var(--brand-600);}
.related{margin-top:40px;}
.related h2{font-size:20px;font-weight:600;margin:0 0 18px;color:var(--ink);}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.related-card{
  display:flex;gap:12px;align-items:center;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:12px;box-shadow:var(--sh-sm);
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.related-card:hover{box-shadow:var(--sh-md);transform:translateY(-2px);border-color:var(--brand-100);}
.related-card img{width:96px;height:64px;object-fit:cover;border-radius:10px;flex:0 0 96px;}
.related-card .tt{font-size:14px;font-weight:600;line-height:1.6;color:var(--ink);}
.related-card:hover .tt{color:var(--brand-600);}
.related-card .dt{font-size:12px;color:var(--ink-3);margin-top:4px;}
.back-link{
  display:inline-flex;align-items:center;gap:8px;margin-top:28px;
  font-size:14px;font-weight:600;color:var(--brand-600);
}
.back-link:hover{color:var(--brand-700);text-decoration:underline;}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 88px;}
.cta-card{
  background:var(--brand-50);border:1px solid var(--brand-600);border-radius:var(--r-card);
  padding:32px;display:flex;align-items:center;justify-content:space-between;gap:24px;
  box-shadow:var(--sh-sm);
}
.cta-card h2{margin:0 0 8px;font-size:24px;font-weight:600;color:var(--ink);}
.cta-card p{margin:0;font-size:15px;color:var(--ink-2);max-width:620px;}
.cta-actions{display:flex;gap:12px;flex:0 0 auto;}

/* ---------- Footer ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding-top:56px;}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:32px;}
.footer-brand p{margin:16px 0 0;font-size:14px;color:var(--ink-2);line-height:1.8;max-width:340px;}
.footer h4{margin:0 0 16px;font-size:15px;font-weight:600;color:var(--ink);}
.footer-links{list-style:none;margin:0;padding:0;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:var(--ink-2);transition:color var(--t);}
.footer-links a:hover{color:var(--brand-600);}
.footer-sub-form{display:flex;gap:8px;margin-top:12px;}
.footer-sub-form input{
  flex:1;min-width:0;height:46px;border:1px solid var(--input-border);border-radius:var(--r-btn);
  padding:0 14px;font-size:14px;background:#fff;color:var(--ink);
  transition:border-color var(--t),box-shadow var(--t);
}
.footer-sub-form input:focus{outline:none;border-color:var(--brand-600);box-shadow:0 0 0 4px rgba(21,84,192,.12);}
.footer-sub-form input.is-error{border-color:#DC2626;box-shadow:0 0 0 4px rgba(220,38,38,.10);}
.footer-sub-form button{
  height:46px;padding:0 18px;border:0;border-radius:var(--r-btn);background:var(--brand-600);
  color:#fff;font-size:14px;font-weight:600;cursor:pointer;
  transition:background var(--t),transform var(--t);
}
.footer-sub-form button:hover{background:var(--brand-700);transform:translateY(-2px);}
.form-msg{margin:10px 0 0;font-size:13px;color:var(--ink-2);}
.form-msg.is-ok{color:var(--brand-700);background:var(--coral-50);border-radius:8px;padding:8px 10px;}
.form-msg.is-err{color:#DC2626;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid var(--line);margin-top:40px;padding:20px 0 32px;font-size:13px;color:var(--ink-3);
}
.footer-bottom p{margin:0;}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .main-nav{display:none;}
  .nav-toggle{display:flex;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .article-section{padding:44px 0 56px;}
}
@media (max-width:768px){
  .header-inner{min-height:64px;}
  .header-actions .btn-ghost,.header-actions .btn-primary{display:none;}
  .wrap{padding:0 16px;}
  .article-hero-inner{padding-bottom:36px;}
  .article-title{font-size:26px;}
  .related-grid{grid-template-columns:1fr;}
  .post-nav{grid-template-columns:1fr;}
  .cta-card{flex-direction:column;align-items:flex-start;padding:24px;}
  .cta-actions{width:100%;flex-wrap:wrap;}
  .cta-actions .btn{flex:1;min-width:140px;}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr;}
  .footer-sub-form{flex-direction:column;}
  .footer-sub-form button{width:100%;}
  .related-card img{width:80px;height:56px;flex:0 0 80px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .btn:hover,.post-nav a:hover,.related-card:hover{transform:none;}
}

/* roulang page: category1 */
:root{
    --brand-600:#1554C0; --brand-500:#2568D8; --brand-700:#0F4298;
    --brand-50:#EEF4FF; --brand-100:#DCE8FA;
    --coral-500:#FF7A45; --coral-50:#FFF2EC;
    --bg:#F7F9FC; --surface:#FFFFFF;
    --ink:#0F172A; --ink-2:#475569; --ink-3:#94A3B8;
    --line:#E4EAF2; --input-line:#D6DEEA;
    --r-card:16px; --r-img:12px; --r-field:10px; --r-pill:999px;
    --sh-sm:0 1px 2px rgba(15,23,42,.04);
    --sh-md:0 6px 18px rgba(15,23,42,.06);
    --sh-lg:0 16px 36px rgba(15,23,42,.10);
    --wrap:1180px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0; background:var(--bg); color:var(--ink);
    font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px; line-height:1.8; font-weight:400;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%; display:block; height:auto;}
  a{color:inherit; text-decoration:none;}
  button,input,textarea{font:inherit; color:inherit;}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
  ul{padding:0; list-style:none;}
  :focus-visible{outline:2px solid var(--brand-600); outline-offset:2px; border-radius:6px;}
  .wrap{max-width:var(--wrap); margin:0 auto; padding:0 24px; width:100%;}
  .num{font-variant-numeric:tabular-nums;}

  /* Header */
  .site-header{
    position:sticky; top:0; z-index:60; background:rgba(255,255,255,.92);
    border-bottom:1px solid var(--line); transition:box-shadow .18s ease-out, background .18s ease-out;
  }
  .site-header.is-scrolled{background:#fff; box-shadow:var(--sh-md);}
  .header-inner{display:flex; align-items:center; justify-content:space-between; gap:24px; min-height:68px;}
  .logo{display:inline-flex; align-items:center; gap:8px; font-size:18px; font-weight:700; letter-spacing:.2px; color:var(--ink);}
  .logo-mark{width:28px; height:28px; border-radius:9px; background:var(--brand-600); position:relative; flex:0 0 28px;}
  .logo-mark::before,.logo-mark::after{
    content:""; position:absolute; left:50%; top:50%; transform:translate(-50%,-50%);
    background:#fff; border-radius:2px;
  }
  .logo-mark::before{width:14px; height:2px;}
  .logo-mark::after{width:2px; height:14px;}
  .logo-text{white-space:nowrap;}
  .main-nav{display:flex; align-items:center; gap:4px;}
  .nav-link{
    position:relative; display:inline-block; padding:9px 12px; border-radius:8px;
    font-size:15px; font-weight:500; color:var(--ink-2); transition:color .16s ease-out, background .16s ease-out;
  }
  .nav-link:hover{color:var(--brand-600); background:var(--brand-50);}
  .nav-link.is-active{color:var(--brand-700); font-weight:600;}
  .nav-link.is-active::after{
    content:""; position:absolute; left:12px; right:12px; bottom:2px; height:2px;
    border-radius:2px; background:var(--brand-600);
  }
  .header-actions{display:flex; align-items:center; gap:12px;}
  .btn{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    padding:12px 24px; border-radius:var(--r-field); border:1px solid transparent;
    font-size:15px; font-weight:600; cursor:pointer; min-height:44px;
    transition:transform .16s ease-out, box-shadow .16s ease-out, background .16s ease-out, color .16s ease-out, border-color .16s ease-out;
  }
  .btn-primary{background:var(--brand-600); color:#fff; box-shadow:var(--sh-sm);}
  .btn-primary:hover{background:var(--brand-700); transform:translateY(-2px); box-shadow:var(--sh-md);}
  .btn-primary:active{transform:translateY(0); box-shadow:var(--sh-sm);}
  .btn-ghost{background:#fff; color:var(--brand-700); border-color:var(--brand-600);}
  .btn-ghost:hover{background:var(--brand-50); transform:translateY(-2px); box-shadow:var(--sh-md);}
  .btn-sm{padding:9px 16px; font-size:14px; min-height:40px;}
  .nav-toggle{
    display:none; width:44px; height:44px; border:1px solid var(--line); background:#fff;
    border-radius:var(--r-field); cursor:pointer; align-items:center; justify-content:center; flex-direction:column; gap:5px;
  }
  .nav-toggle span{display:block; width:20px; height:2px; background:var(--ink); border-radius:2px;}
  .mobile-drawer{
    display:none; border-top:1px solid var(--line); background:#fff; padding:12px 24px 20px;
  }
  .mobile-drawer.is-open{display:block;}
  .mobile-drawer .drawer-cta{margin-bottom:10px;}
  .drawer-link{
    display:flex; align-items:center; min-height:48px; font-size:15px; font-weight:500;
    color:var(--ink-2); border-bottom:1px solid var(--line);
  }
  .drawer-link.is-active{color:var(--brand-700); font-weight:600;}

  /* Page banner */
  .page-banner{background:var(--brand-50); border-bottom:1px solid var(--line);}
  .banner-grid{display:grid; grid-template-columns:1.35fr .95fr; gap:40px; align-items:center; padding:56px 0 48px;}
  .eyebrow{
    display:inline-flex; align-items:center; gap:8px; padding:6px 14px; border-radius:var(--r-pill);
    background:#fff; border:1px solid var(--brand-100); color:var(--brand-700);
    font-size:13px; font-weight:600; margin-bottom:16px;
  }
  .eyebrow::before{content:""; width:6px; height:6px; border-radius:50%; background:var(--coral-500);}
  h1{font-size:clamp(30px,4vw,44px); line-height:1.25; font-weight:700; letter-spacing:-.4px;}
  .banner-lead{margin-top:16px; font-size:16px; color:var(--ink-2); max-width:560px;}
  .banner-stats{display:flex; flex-wrap:wrap; gap:28px; margin-top:26px;}
  .banner-stat strong{display:block; font-size:22px; font-weight:700; color:var(--brand-700); font-variant-numeric:tabular-nums;}
  .banner-stat span{font-size:13px; color:var(--ink-3);}
  .banner-figure{border-radius:var(--r-card); overflow:hidden; box-shadow:var(--sh-lg); border:1px solid #fff;}
  .banner-figure img{width:100%; aspect-ratio:16/10; object-fit:cover;}

  /* Breadcrumb */
  .breadcrumb{padding:16px 0 0; font-size:13px; color:var(--ink-3); display:flex; flex-wrap:wrap; align-items:center; gap:8px;}
  .breadcrumb a{color:var(--ink-2);}
  .breadcrumb a:hover{color:var(--brand-600);}
  .breadcrumb .sep{color:#CBD5E1;}
  .breadcrumb .current{color:var(--ink-2); font-weight:600;}

  /* Sections */
  section{padding:88px 0;}
  .section-alt{background:#fff; border-top:1px solid var(--line); border-bottom:1px solid var(--line); padding:88px 0;}
  .section-head{display:flex; align-items:flex-end; justify-content:space-between; gap:24px; flex-wrap:wrap; margin-bottom:36px;}
  .section-head h2{font-size:clamp(24px,2.6vw,30px); font-weight:600; letter-spacing:-.2px;}
  .section-head p{margin-top:10px; color:var(--ink-2); font-size:15px; max-width:620px;}
  .text-link{color:var(--brand-600); font-size:14px; font-weight:600; display:inline-flex; align-items:center; gap:6px;}
  .text-link:hover{color:var(--brand-700);}
  .text-link::after{content:"→"; transition:transform .16s ease-out;}
  .text-link:hover::after{transform:translateX(3px);}

  /* Info rows */
  .info-panel{
    background:#fff; border:1px solid var(--line); border-radius:var(--r-card);
    box-shadow:var(--sh-sm); padding:8px 24px;
  }
  .info-row{
    display:grid; grid-template-columns:180px 1fr auto; gap:20px; align-items:center;
    padding:18px 0; border-bottom:1px solid var(--line);
  }
  .info-row:last-child{border-bottom:0;}
  .info-row dt{font-size:14px; color:var(--ink-3);}
  .info-row dd{margin:0; font-size:15px; color:var(--ink); font-weight:500;}
  .badge{
    display:inline-flex; align-items:center; gap:6px; padding:5px 12px; border-radius:var(--r-pill);
    font-size:12px; font-weight:600; background:var(--brand-50); color:var(--brand-700);
  }
  .badge-coral{background:var(--coral-50); color:#C2410C;}
  .badge-mute{background:#F1F5F9; color:var(--ink-2);}

  /* Alternating feature blocks */
  .feature{display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; margin-bottom:64px;}
  .feature:last-child{margin-bottom:0;}
  .feature.reverse .feature-media{order:2;}
  .feature-media{border-radius:var(--r-card); overflow:hidden; box-shadow:var(--sh-md); border:1px solid var(--line); background:#fff;}
  .feature-media img{width:100%; aspect-ratio:16/9; object-fit:cover; transition:transform .3s ease-out;}
  .feature-media:hover img{transform:scale(1.02);}
  .feature-body h3{font-size:22px; font-weight:600; margin-bottom:12px;}
  .feature-body p{color:var(--ink-2); font-size:15px; margin-bottom:10px;}
  .feature-points{margin:18px 0 22px; display:grid; gap:8px;}
  .feature-points li{position:relative; padding-left:20px; font-size:14px; color:var(--ink-2);}
  .feature-points li::before{
    content:""; position:absolute; left:0; top:10px; width:8px; height:8px; border-radius:50%;
    background:var(--brand-100); border:2px solid var(--brand-500);
  }
  .step-no{
    display:inline-block; font-size:13px; font-weight:700; color:var(--brand-500);
    letter-spacing:1px; margin-bottom:8px;
  }

  /* Reminder cards */
  .remind-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:24px;}
  .remind-card{
    background:#fff; border:1px solid var(--line); border-radius:var(--r-card);
    padding:24px; box-shadow:var(--sh-sm);
    transition:transform .18s ease-out, box-shadow .18s ease-out, border-color .18s ease-out;
  }
  .remind-card:hover{transform:translateY(-2px); box-shadow:var(--sh-md); border-color:var(--brand-100);}
  .remind-icon{
    width:40px; height:40px; border-radius:12px; background:var(--brand-50); color:var(--brand-700);
    display:flex; align-items:center; justify-content:center; font-size:15px; font-weight:700; margin-bottom:16px;
  }
  .remind-card h3{font-size:17px; font-weight:600; margin-bottom:8px;}
  .remind-card p{font-size:14px; color:var(--ink-2);}

  /* Subscribe block */
  .subscribe-block{
    background:var(--brand-50); border:1px solid var(--brand-100); border-radius:var(--r-card);
    padding:32px; display:grid; grid-template-columns:1fr 1fr; gap:32px; align-items:center;
  }
  .subscribe-block h3{font-size:20px; font-weight:600; margin-bottom:8px;}
  .subscribe-block p{font-size:14px; color:var(--ink-2);}
  .sub-form{display:flex; gap:12px;}
  .field{
    flex:1; min-height:46px; padding:0 16px; border-radius:var(--r-field);
    border:1px solid var(--input-line); background:#fff; font-size:15px;
    transition:border-color .16s ease-out, box-shadow .16s ease-out;
  }
  .field::placeholder{color:var(--ink-3);}
  .field:focus{outline:none; border-color:var(--brand-500); box-shadow:0 0 0 4px rgba(37,104,216,.14);}
  .field.is-error{border-color:#DC2626; box-shadow:0 0 0 4px rgba(220,38,38,.10);}
  .form-msg{margin-top:10px; font-size:13px; color:var(--ink-3);}
  .form-msg.is-error{color:#DC2626;}
  .form-msg.is-ok{color:#B4441F; background:var(--coral-50); padding:8px 12px; border-radius:8px;}

  /* FAQ */
  .faq-list{display:grid; gap:12px; max-width:920px;}
  .faq-item{background:#fff; border:1px solid var(--line); border-radius:12px; overflow:hidden;}
  .faq-q{
    width:100%; display:flex; align-items:center; justify-content:space-between; gap:16px;
    padding:18px 20px; background:none; border:0; cursor:pointer; text-align:left;
    font-size:16px; font-weight:600; color:var(--ink);
  }
  .faq-icon{
    flex:0 0 22px; width:22px; height:22px; border-radius:50%; border:1px solid var(--brand-100);
    color:var(--brand-600); display:flex; align-items:center; justify-content:center; font-size:15px; line-height:1;
    background:var(--brand-50); transition:background .16s ease-out, color .16s ease-out;
  }
  .faq-a{max-height:0; overflow:hidden; transition:max-height .25s ease-out;}
  .faq-a-inner{padding:0 20px 20px; font-size:15px; color:var(--ink-2); background:#F8FAFC;}
  .faq-item.is-open{background:#F8FAFC;}
  .faq-item.is-open .faq-icon{background:var(--brand-600); color:#fff; border-color:var(--brand-600);}
  .faq-item.is-open .faq-q{padding-bottom:12px;}

  /* CTA split */
  .cta-split{
    display:grid; grid-template-columns:1fr 1fr; gap:0; overflow:hidden;
    border-radius:var(--r-card); border:1px solid var(--brand-100); background:#fff; box-shadow:var(--sh-md);
  }
  .cta-split figure{margin:0; height:100%;}
  .cta-split img{width:100%; height:100%; object-fit:cover; min-height:280px;}
  .cta-body{padding:44px 40px; display:flex; flex-direction:column; justify-content:center; gap:16px;}
  .cta-body h2{font-size:26px; font-weight:600;}
  .cta-body p{color:var(--ink-2); font-size:15px;}
  .cta-actions{display:flex; flex-wrap:wrap; gap:12px; margin-top:6px;}

  /* Footer */
  .site-footer{background:#fff; border-top:1px solid var(--line); padding:64px 0 0;}
  .footer-grid{display:grid; grid-template-columns:4fr 2fr 3fr 3fr; gap:40px;}
  .footer-brand p{margin-top:14px; font-size:14px; color:var(--ink-2); max-width:340px;}
  .footer h4{font-size:15px; font-weight:600; margin-bottom:14px;}
  .footer-links{display:grid; gap:10px;}
  .footer-links a{font-size:14px; color:var(--ink-2);}
  .footer-links a:hover{color:var(--brand-600);}
  .footer-sub-form{display:flex; gap:10px; margin-top:14px;}
  .footer-sub-form input{
    flex:1; min-height:44px; padding:0 14px; border-radius:var(--r-field);
    border:1px solid var(--input-line); font-size:14px; background:#fff;
  }
  .footer-sub-form input:focus{outline:none; border-color:var(--brand-500); box-shadow:0 0 0 4px rgba(37,104,216,.14);}
  .footer-sub-form button{
    min-height:44px; padding:0 18px; border:0; border-radius:var(--r-field);
    background:var(--brand-600); color:#fff; font-size:14px; font-weight:600; cursor:pointer;
    transition:background .16s ease-out, transform .16s ease-out;
  }
  .footer-sub-form button:hover{background:var(--brand-700); transform:translateY(-2px);}
  .footer-bottom{
    margin-top:48px; border-top:1px solid var(--line); padding:20px 0 28px;
    display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap;
  }
  .footer-bottom p, .footer-bottom span{font-size:13px; color:var(--ink-3);}

  @media (max-width:1024px){
    .main-nav{display:none;}
    .nav-toggle{display:flex;}
    .header-actions .btn{display:none;}
    .banner-grid{grid-template-columns:1fr; gap:28px; padding:44px 0 40px;}
    .banner-figure{order:2;}
    .footer-grid{grid-template-columns:1fr 1fr; gap:32px;}
    section, .section-alt{padding:64px 0;}
    .feature{gap:32px; margin-bottom:56px;}
  }
  @media (max-width:768px){
    .wrap{padding:0 16px;}
    .feature{grid-template-columns:1fr; gap:24px;}
    .feature.reverse .feature-media{order:0;}
    .remind-grid{grid-template-columns:1fr; gap:16px;}
    .subscribe-block{grid-template-columns:1fr; padding:24px;}
    .sub-form{flex-direction:column;}
    .sub-form .btn{width:100%;}
    .cta-split{grid-template-columns:1fr;}
    .cta-body{padding:28px 22px;}
    .info-row{grid-template-columns:1fr; gap:6px; padding:16px 0;}
    .info-panel{padding:4px 18px;}
    .section-head{margin-bottom:26px;}
  }
  @media (max-width:520px){
    h1{font-size:28px;}
    .banner-stats{gap:20px;}
    .footer-grid{grid-template-columns:1fr;}
    .footer-bottom{flex-direction:column; align-items:flex-start;}
    section, .section-alt{padding:44px 0;}
    .feature{margin-bottom:44px;}
  }
  @media (prefers-reduced-motion: reduce){
    *{transition:none !important; animation:none !important;}
    .btn:hover, .remind-card:hover, .footer-sub-form button:hover{transform:none !important;}
    .feature-media:hover img{transform:none !important;}
  }

/* roulang page: category2 */
:root{
  --brand-600:#1554C0; --brand-500:#2568D8; --brand-700:#0F4298;
  --brand-50:#EEF4FF; --brand-100:#DCE8FA;
  --coral-500:#FF7A45; --coral-50:#FFF2EC;
  --bg:#F7F9FC; --surface:#FFFFFF;
  --ink:#0F172A; --ink-2:#475569; --ink-3:#94A3B8;
  --line:#E4EAF2; --input-border:#D6DEEA;
  --r-card:16px; --r-img:12px; --r-ctl:10px;
  --sh-sm:0 1px 2px rgba(15,23,42,.04);
  --sh-md:0 6px 18px rgba(15,23,42,.06);
  --sh-lg:0 16px 36px rgba(15,23,42,.10);
  --wrap:1180px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);color:var(--ink);font-size:16px;line-height:1.8;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:6px;}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px;width:100%;}
@media(max-width:640px){.wrap{padding:0 16px;}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.90);
  backdrop-filter:saturate(1.4) blur(10px);transition:box-shadow .2s ease,background .2s ease;
}
.site-header.is-scrolled{background:#fff;box-shadow:var(--sh-md);}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:8px;color:var(--ink);flex:0 0 auto;}
.logo-mark{position:relative;width:28px;height:28px;border-radius:8px;background:var(--brand-600);flex:0 0 28px;}
.logo-mark::before,.logo-mark::after{content:"";position:absolute;left:50%;top:50%;background:#fff;border-radius:1px;transform:translate(-50%,-50%);}
.logo-mark::before{width:14px;height:2px;}
.logo-mark::after{width:2px;height:14px;}
.logo-text{font-size:18px;font-weight:700;letter-spacing:.2px;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:8px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-block;padding:8px 12px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--ink-2);transition:color .16s ease,background .16s ease;
}
.nav-link:hover{color:var(--brand-600);background:var(--brand-50);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:22px;height:2px;border-radius:2px;background:var(--brand-600);
}
.header-cta{
  flex:0 0 auto;margin-left:8px;
}
.nav-divider{height:1px;background:var(--line);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-ctl);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:transform .16s var(--ease),box-shadow .16s ease,background .16s ease,border-color .16s ease,color .16s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--sh-sm);}
.btn-primary:hover{background:var(--brand-700);box-shadow:var(--sh-md);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-sm);}
.btn-ghost{background:#fff;color:var(--brand-600);border-color:var(--brand-600);}
.btn-ghost:hover{background:var(--brand-50);transform:translateY(-2px);box-shadow:var(--sh-md);}
.btn-ghost:active{transform:translateY(0);box-shadow:none;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}

.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-ctl);
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;margin-left:auto;
}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--ink);transition:transform .18s ease,opacity .18s ease;}
@media(max-width:1023px){
  .main-nav,.header-cta{display:none;}
  .nav-toggle{display:flex;}
}

/* ---------- Drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,23,42,.38);opacity:0;visibility:hidden;
  transition:opacity .2s ease,visibility .2s ease;z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:280px;max-width:88vw;background:#fff;z-index:80;
  transform:translateX(100%);transition:transform .22s var(--ease);display:flex;flex-direction:column;
  box-shadow:var(--sh-lg);overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line);}
.drawer-close{width:36px;height:36px;border:1px solid var(--line);background:#fff;border-radius:10px;font-size:20px;line-height:1;cursor:pointer;color:var(--ink-2);}
.drawer-close:hover{background:var(--brand-50);color:var(--brand-600);}
.drawer-cta{margin:16px 20px 4px;height:46px;border-radius:var(--r-ctl);background:var(--brand-600);color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:600;}
.drawer-nav{display:flex;flex-direction:column;padding:8px 0 24px;}
.drawer-nav a{
  height:48px;display:flex;align-items:center;padding:0 20px;font-size:15px;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.drawer-nav a:hover{color:var(--brand-600);background:var(--brand-50);}
.drawer-nav a.is-active{color:var(--brand-600);font-weight:600;background:var(--brand-50);}

/* ---------- Page head ---------- */
.page-head{background:var(--brand-50);border-bottom:1px solid var(--line);padding:56px 0 0;}
.page-head-inner{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:48px;align-items:center;padding-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  background:#fff;color:var(--brand-600);font-size:12px;font-weight:600;letter-spacing:.6px;border:1px solid var(--brand-100);
}
.page-head h1{font-size:clamp(28px,3.6vw,40px);line-height:1.28;font-weight:700;margin:16px 0 14px;letter-spacing:-.2px;}
.page-head .lead{font-size:17px;color:var(--ink-2);max-width:560px;}
.page-head-media{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-lg);border:1px solid #fff;}
.page-head-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-card);}
.breadcrumb{padding:16px 0 22px;font-size:13px;color:var(--ink-3);display:flex;gap:8px;flex-wrap:wrap;}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .sep{color:#C4CEDD;}
.breadcrumb .now{color:var(--ink-2);}
@media(max-width:900px){
  .page-head{padding-top:40px;}
  .page-head-inner{grid-template-columns:1fr;gap:28px;}
  .page-head-media img{aspect-ratio:16/9;}
}

/* ---------- Section base ---------- */
.section{padding:88px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
@media(max-width:1024px){.section{padding:64px 0;}}
@media(max-width:640px){.section{padding:44px 0;}}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{font-size:clamp(24px,2.8vw,32px);font-weight:600;line-height:1.32;margin:14px 0 12px;letter-spacing:-.2px;}
.section-head p{color:var(--ink-2);font-size:16px;}

/* ---------- Timeline ---------- */
.timeline{position:relative;}
.timeline::before{content:"";position:absolute;left:136px;top:10px;bottom:10px;width:1px;background:var(--line);}
.tl-item{display:grid;grid-template-columns:120px 32px minmax(0,1fr);padding:24px 0;border-bottom:1px solid var(--line);}
.tl-item:last-child{border-bottom:0;}
.tl-phase{padding-right:20px;text-align:right;font-size:13px;color:var(--ink-3);padding-top:6px;font-variant-numeric:tabular-nums;letter-spacing:.3px;}
.tl-dot{display:flex;justify-content:center;}
.tl-dot i{display:block;width:12px;height:12px;border-radius:50%;background:#fff;border:2px solid var(--brand-600);margin-top:7px;box-shadow:0 0 0 4px var(--brand-50);}
.tl-body{padding-top:2px;}
.tl-body .tl-no{font-size:12px;font-weight:600;color:var(--brand-600);letter-spacing:1px;font-variant-numeric:tabular-nums;}
.tl-body h3{font-size:18px;font-weight:600;margin:4px 0 8px;line-height:1.45;}
.tl-body p{font-size:15px;color:var(--ink-2);line-height:1.78;max-width:720px;}
@media(max-width:767px){
  .timeline::before{left:15px;}
  .tl-item{grid-template-columns:32px minmax(0,1fr);padding:20px 0;}
  .tl-phase{grid-column:2;grid-row:1;text-align:left;padding:0 0 4px;font-size:12px;}
  .tl-dot{grid-column:1;grid-row:1 / span 2;}
  .tl-dot i{margin-top:5px;}
  .tl-body{grid-column:2;grid-row:2;}
}

/* ---------- Point cards ---------- */
.point-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-sm);height:100%;
  transition:transform .18s var(--ease),box-shadow .18s ease,border-color .18s ease;
}
.point-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:var(--brand-100);}
.point-card .p-ico{
  width:38px;height:38px;border-radius:12px;background:var(--brand-50);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.point-card h3{font-size:17px;font-weight:600;margin-bottom:8px;line-height:1.5;}
.point-card p{font-size:14px;color:var(--ink-2);line-height:1.75;}

/* ---------- Scenario ---------- */
.scenario{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center;}
.scenario + .scenario{margin-top:72px;}
.scenario-media{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-md);border:1px solid var(--line);}
.scenario-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-card);}
.scenario-body h3{font-size:22px;font-weight:600;line-height:1.4;margin-bottom:14px;}
.scenario-body > p{color:var(--ink-2);margin-bottom:20px;}
.sc-list li{display:flex;gap:12px;padding:14px 0;border-top:1px solid var(--line);font-size:15px;color:var(--ink-2);}
.sc-list li strong{color:var(--ink);font-weight:600;flex:0 0 auto;}
.sc-list li span{flex:1;}
@media(max-width:900px){
  .scenario{grid-template-columns:1fr;gap:28px;}
  .scenario.reverse .scenario-media{order:-1;}
  .scenario + .scenario{margin-top:48px;}
}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:box-shadow .18s ease,border-color .18s ease;}
.faq-item:hover{border-color:var(--brand-100);}
.faq-item.is-open{box-shadow:var(--sh-sm);border-color:var(--brand-100);}
.faq-h{margin:0;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:none;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;min-height:44px;
  transition:color .16s ease;
}
.faq-q:hover{color:var(--brand-600);}
.faq-icon{position:relative;width:20px;height:20px;flex:0 0 20px;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--brand-600);border-radius:2px;transform:translate(-50%,-50%);transition:transform .2s var(--ease),opacity .2s ease;}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease);background:#F8FAFC;}
.faq-a-inner{padding:4px 20px 20px;font-size:15px;color:var(--ink-2);line-height:1.8;}

/* ---------- Center CTA ---------- */
.center-cta{
  text-align:center;background:var(--brand-50);border:1px solid var(--brand-100);
  border-radius:20px;padding:56px 28px;
}
.center-cta h2{font-size:clamp(22px,2.6vw,30px);font-weight:600;line-height:1.4;margin-bottom:14px;}
.center-cta p{color:var(--ink-2);max-width:620px;margin:0 auto 26px;}
.center-cta .cta-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;}
.center-cta .text-link{display:inline-flex;align-items:center;gap:6px;margin-top:18px;font-size:14px;color:var(--brand-600);font-weight:600;}
.center-cta .text-link:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:4px;}

/* ---------- Footer ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding-top:56px;}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:40px;padding-bottom:44px;}
.footer-brand p{font-size:14px;color:var(--ink-2);margin-top:14px;max-width:340px;line-height:1.8;}
.footer h4{font-size:15px;font-weight:600;margin-bottom:14px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:var(--ink-2);transition:color .16s ease;}
.footer-links a:hover{color:var(--brand-600);}
.footer-sub-form{display:flex;gap:8px;margin-top:14px;}
.footer-sub-form input{
  flex:1;min-width:0;height:44px;padding:0 12px;border:1px solid var(--input-border);border-radius:var(--r-ctl);
  font-size:14px;background:#fff;transition:border-color .16s ease,box-shadow .16s ease;
}
.footer-sub-form input::placeholder{color:var(--ink-3);}
.footer-sub-form input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(37,104,216,.14);}
.footer-sub-form input.is-error{border-color:#DC2626;box-shadow:0 0 0 3px rgba(220,38,38,.10);}
.footer-sub-form button{
  height:44px;padding:0 18px;border:0;border-radius:var(--r-ctl);background:var(--brand-600);color:#fff;
  font-size:14px;font-weight:600;cursor:pointer;transition:background .16s ease,transform .16s var(--ease);
}
.footer-sub-form button:hover{background:var(--brand-700);transform:translateY(-1px);}
.footer-sub-form button:active{transform:translateY(0);}
.form-msg{min-height:18px;margin-top:10px;color:var(--ink-3);}
.form-msg.ok{color:#0F4298;background:var(--coral-50);border-radius:8px;padding:8px 10px;}
.form-msg.err{color:#DC2626;}
.footer-bottom{
  border-top:1px solid var(--line);padding:18px 0 22px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-3);
}
@media(max-width:1023px){
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
  .footer-brand{grid-column:1 / -1;}
}
@media(max-width:560px){
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .point-card:hover,.btn:hover{transform:none !important;}
}

/* roulang page: category3 */
:root{
    --brand-700:#0F4298;
    --brand-600:#1554C0;
    --brand-500:#2568D8;
    --brand-100:#DCE8FA;
    --brand-50:#EEF4FF;
    --coral-500:#FF7A45;
    --coral-50:#FFF2EC;
    --bg:#F7F9FC;
    --surface:#FFFFFF;
    --ink:#0F172A;
    --ink-2:#475569;
    --ink-3:#94A3B8;
    --line:#E4EAF2;
    --input-border:#D6DEEA;
    --r-card:16px;
    --r-img:12px;
    --r-ctl:10px;
    --shadow-sm:0 1px 2px rgba(15,23,42,.04);
    --shadow-md:0 6px 18px rgba(15,23,42,.06);
    --shadow-lg:0 16px 36px rgba(15,23,42,.10);
    --wrap:1180px;
  }

  *,*::before,*::after{ box-sizing:border-box; }

  html{ -webkit-text-size-adjust:100%; }

  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.8;
    font-weight:400;
    -webkit-font-smoothing:antialiased;
  }

  img{ display:block; max-width:100%; }
  a{ color:inherit; text-decoration:none; }
  button{ font-family:inherit; }
  h1,h2,h3,h4,p{ margin:0; }
  ul{ margin:0; padding:0; }
  input,button,textarea{ font-size:inherit; }

  a:focus-visible,
  button:focus-visible,
  input:focus-visible,
  textarea:focus-visible{
    outline:2px solid var(--brand-600);
    outline-offset:2px;
    border-radius:6px;
  }

  ::-webkit-scrollbar{ width:10px; height:10px; }
  ::-webkit-scrollbar-thumb{ background:#CBD6E4; border-radius:999px; border:2px solid var(--bg); }
  ::-webkit-scrollbar-track{ background:transparent; }

  .wrap{
    max-width:var(--wrap);
    margin:0 auto;
    padding-left:24px;
    padding-right:24px;
  }

  .num{ font-variant-numeric:tabular-nums; }

  /* ---------- 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);
    transition:box-shadow .18s ease-out,background .18s ease-out;
  }
  .site-header.is-scrolled{
    background:#fff;
    box-shadow:var(--shadow-md);
  }
  .header-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
    height:72px;
  }
  .logo{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:18px;
    font-weight:700;
    color:var(--ink);
    letter-spacing:.2px;
    flex-shrink:0;
  }
  .logo-mark{
    position:relative;
    width:28px;
    height:28px;
    border-radius:8px;
    background:var(--brand-600);
    flex-shrink:0;
  }
  .logo-mark::before,
  .logo-mark::after{
    content:"";
    position:absolute;
    left:6px;
    right:6px;
    height:2px;
    border-radius:2px;
    background:#fff;
  }
  .logo-mark::before{ top:10px; }
  .logo-mark::after{ bottom:10px; }
  .logo-text{ white-space:nowrap; }

  .main-nav{
    display:flex;
    align-items:center;
    gap:32px;
    margin-left:auto;
  }
  .nav-link{
    position:relative;
    display:inline-block;
    padding:8px 10px;
    font-size:15px;
    font-weight:500;
    color:var(--ink-2);
    border-radius:8px;
    transition:color .16s ease-out,background .16s ease-out;
  }
  .nav-link:hover{ color:var(--brand-600); background:var(--brand-50); }
  .nav-link.is-active{ color:var(--brand-700); font-weight:600; }
  .nav-link.is-active::after{
    content:"";
    position:absolute;
    left:10px;
    right:10px;
    bottom:2px;
    height:2px;
    border-radius:2px;
    background:var(--brand-600);
  }

  .header-actions{ display:flex; align-items:center; gap:12px; flex-shrink:0; }

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:12px 24px;
    font-size:15px;
    font-weight:600;
    line-height:1.2;
    border-radius:var(--r-ctl);
    border:1px solid transparent;
    cursor:pointer;
    transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out;
  }
  .btn-primary{
    background:var(--brand-600);
    color:#fff;
    box-shadow:var(--shadow-sm);
  }
  .btn-primary:hover{ background:var(--brand-700); transform:translateY(-2px); box-shadow:var(--shadow-md); }
  .btn-primary:active{ transform:translateY(0); box-shadow:var(--shadow-sm); }

  .btn-ghost{
    background:#fff;
    color:var(--brand-700);
    border-color:var(--brand-600);
  }
  .btn-ghost:hover{ background:var(--brand-50); transform:translateY(-2px); box-shadow:var(--shadow-md); }
  .btn-ghost:active{ transform:translateY(0); box-shadow:none; }
  .btn-ghost[disabled]{ opacity:.55; cursor:not-allowed; transform:none; box-shadow:none; }

  .btn-sm{ padding:9px 18px; font-size:14px; }

  .nav-toggle{
    display:none;
    width:44px;
    height:44px;
    border:1px solid var(--line);
    border-radius:10px;
    background:#fff;
    cursor:pointer;
    padding:0;
    align-items:center;
    justify-content:center;
    flex-direction:column;
    gap:6px;
  }
  .nav-toggle span{
    display:block;
    width:20px;
    height:2px;
    border-radius:2px;
    background:var(--ink);
  }

  /* ---------- Drawer ---------- */
  .drawer-mask{
    position:fixed;
    inset:0;
    background:rgba(15,23,42,.42);
    z-index:80;
    opacity:0;
    visibility:hidden;
    transition:opacity .2s ease-out,visibility .2s ease-out;
  }
  .drawer-mask.is-open{ opacity:1; visibility:visible; }

  .drawer{
    position:fixed;
    top:0;
    right:0;
    z-index:90;
    width:280px;
    max-width:86%;
    height:100%;
    background:#fff;
    box-shadow:var(--shadow-lg);
    transform:translateX(100%);
    transition:transform .22s ease-out;
    padding:20px;
    overflow-y:auto;
    display:flex;
    flex-direction:column;
  }
  .drawer.is-open{ transform:translateX(0); }
  .drawer-head{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding-bottom:16px;
    border-bottom:1px solid var(--line);
    margin-bottom:16px;
  }
  .drawer-close{
    width:36px;
    height:36px;
    border-radius:10px;
    border:1px solid var(--line);
    background:#fff;
    font-size:20px;
    line-height:1;
    color:var(--ink-2);
    cursor:pointer;
  }
  .drawer-close:hover{ background:var(--brand-50); color:var(--brand-600); }
  .drawer-cta{
    display:flex;
    align-items:center;
    justify-content:center;
    height:46px;
    border-radius:var(--r-ctl);
    background:var(--brand-600);
    color:#fff;
    font-size:15px;
    font-weight:600;
    margin-bottom:14px;
  }
  .drawer-link{
    display:flex;
    align-items:center;
    height:48px;
    padding:0 4px;
    border-bottom:1px solid var(--line);
    font-size:15px;
    font-weight:500;
    color:var(--ink-2);
  }
  .drawer-link.is-active{ color:var(--brand-700); font-weight:600; }
  .drawer-link:hover{ color:var(--brand-600); }

  /* ---------- Page hero ---------- */
  .page-hero{
    background:linear-gradient(180deg,var(--brand-50) 0%,#FFFFFF 100%);
    border-bottom:1px solid var(--line);
    padding:52px 0 44px;
  }
  .page-hero-inner{
    display:grid;
    grid-template-columns:minmax(0,1fr) 380px;
    gap:44px;
    align-items:center;
  }
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:5px 14px;
    border-radius:999px;
    background:#fff;
    border:1px solid var(--brand-100);
    color:var(--brand-700);
    font-size:13px;
    font-weight:600;
    letter-spacing:.4px;
    margin-bottom:16px;
  }
  .eyebrow::before{
    content:"";
    width:6px;
    height:6px;
    border-radius:999px;
    background:var(--brand-600);
  }
  .page-hero h1{
    font-size:clamp(28px,3.6vw,42px);
    line-height:1.25;
    font-weight:700;
    letter-spacing:-.4px;
    color:var(--ink);
  }
  .page-hero-text p{
    margin-top:16px;
    font-size:16px;
    line-height:1.8;
    color:var(--ink-2);
    max-width:620px;
  }
  .page-hero-media{
    border-radius:var(--r-card);
    overflow:hidden;
    box-shadow:var(--shadow-lg);
    border:1px solid var(--line);
    background:#fff;
    aspect-ratio:16/10;
  }
  .page-hero-media img{
    width:100%;
    height:100%;
    object-fit:cover;
  }

  .breadcrumb{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:8px;
    padding-top:18px;
    padding-bottom:18px;
    font-size:13px;
    color:var(--ink-3);
  }
  .breadcrumb a{ color:var(--ink-3); transition:color .16s ease-out; }
  .breadcrumb a:hover{ color:var(--brand-600); }
  .breadcrumb .current{ color:var(--ink-2); font-weight:500; }
  .crumb-sep{ color:#C6D2E0; }

  /* ---------- Section ---------- */
  .section{ padding:88px 0; }
  .section-tight{ padding-top:36px; }

  .sec-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:24px;
    margin-bottom:28px;
    flex-wrap:wrap;
  }
  .sec-title{
    font-size:clamp(22px,2.4vw,28px);
    font-weight:600;
    line-height:1.3;
    color:var(--ink);
  }
  .sec-desc{
    margin-top:10px;
    font-size:15px;
    color:var(--ink-2);
    max-width:680px;
  }

  /* ---------- Filter chips ---------- */
  .filter-row{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    flex-wrap:wrap;
    margin-bottom:28px;
  }
  .chips{
    display:flex;
    align-items:center;
    gap:10px;
    flex-wrap:wrap;
  }
  .chip{
    padding:9px 18px;
    border-radius:999px;
    border:1px solid var(--line);
    background:#fff;
    color:var(--ink-2);
    font-size:14px;
    font-weight:500;
    cursor:pointer;
    transition:background .16s ease-out,color .16s ease-out,border-color .16s ease-out,box-shadow .16s ease-out;
  }
  .chip:hover{
    border-color:var(--brand-500);
    color:var(--brand-600);
    background:var(--brand-50);
  }
  .chip.is-active{
    background:var(--brand-600);
    border-color:var(--brand-600);
    color:#fff;
    font-weight:600;
    box-shadow:var(--shadow-sm);
  }
  .chip-count{
    font-size:13px;
    color:var(--ink-3);
  }

  /* ---------- Replay grid ---------- */
  .replay-grid{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:24px;
  }
  .replay-card{
    display:flex;
    flex-direction:column;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    overflow:hidden;
    box-shadow:var(--shadow-sm);
    transition:box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
  }
  .replay-card:hover{
    box-shadow:var(--shadow-md);
    transform:translateY(-2px);
    border-color:#D5E2F6;
  }
  .replay-thumb{
    position:relative;
    aspect-ratio:16/9;
    overflow:hidden;
    background:var(--brand-50);
  }
  .replay-thumb img{
    width:100%;
    height:100%;
    object-fit:cover;
    transition:transform .3s ease-out;
  }
  .replay-card:hover .replay-thumb img{ transform:scale(1.03); }
  .duration-badge{
    position:absolute;
    right:12px;
    bottom:12px;
    padding:4px 10px;
    border-radius:999px;
    background:rgba(15,23,42,.78);
    color:#fff;
    font-size:12px;
    font-weight:500;
    font-variant-numeric:tabular-nums;
    letter-spacing:.3px;
  }
  .play-pill{
    position:absolute;
    left:16px;
    top:16px;
    width:34px;
    height:34px;
    border-radius:999px;
    background:rgba(255,255,255,.92);
    box-shadow:var(--shadow-sm);
  }
  .play-pill::after{
    content:"";
    position:absolute;
    left:13px;
    top:11px;
    width:0;
    height:0;
    border-left:9px solid var(--brand-600);
    border-top:6px solid transparent;
    border-bottom:6px solid transparent;
  }
  .replay-body{
    display:flex;
    flex-direction:column;
    gap:10px;
    padding:20px 22px 24px;
    flex:1;
  }
  .badge{
    align-self:flex-start;
    padding:4px 12px;
    border-radius:999px;
    background:var(--brand-50);
    color:var(--brand-700);
    font-size:12px;
    font-weight:600;
    letter-spacing:.2px;
  }
  .badge-coral{ background:var(--coral-50); color:#C1451A; }
  .replay-title{
    font-size:18px;
    font-weight:600;
    line-height:1.45;
    color:var(--ink);
    transition:color .16s ease-out;
  }
  .replay-card:hover .replay-title{ color:var(--brand-600); }
  .replay-desc{
    font-size:14px;
    line-height:1.75;
    color:var(--ink-2);
  }
  .replay-meta{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:var(--ink-3);
    font-variant-numeric:tabular-nums;
  }
  .dot{
    width:3px;
    height:3px;
    border-radius:999px;
    background:#C6D2E0;
  }
  .text-link{
    margin-top:auto;
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-size:14px;
    font-weight:600;
    color:var(--brand-600);
    transition:gap .16s ease-out,color .16s ease-out;
  }
  .text-link:hover{ color:var(--brand-700); gap:10px; }

  .is-extra{ display:none; }

  .empty-state{
    padding:56px 24px;
    border:1px dashed var(--line);
    border-radius:var(--r-card);
    background:#fff;
    text-align:center;
    color:var(--ink-2);
    font-size:15px;
  }

  .load-more-wrap{
    display:flex;
    justify-content:center;
    margin-top:36px;
  }

  /* ---------- Tips ---------- */
  .tips-grid{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
  }
  .tip-item{
    padding:30px 28px;
    border-right:1px solid var(--line);
  }
  .tip-item:last-child{ border-right:0; }
  .tip-num{
    font-size:13px;
    font-weight:700;
    color:var(--brand-500);
    letter-spacing:1px;
    font-variant-numeric:tabular-nums;
  }
  .tip-item h3{
    margin-top:10px;
    font-size:17px;
    font-weight:600;
    color:var(--ink);
  }
  .tip-item p{
    margin-top:8px;
    font-size:14px;
    line-height:1.75;
    color:var(--ink-2);
  }

  /* ---------- FAQ ---------- */
  .faq-list{ max-width:860px; }
  .faq-item{
    border:1px solid var(--line);
    border-radius:12px;
    background:#fff;
    margin-bottom:12px;
    overflow:hidden;
    transition:background .18s ease-out,border-color .18s ease-out;
  }
  .faq-item.is-open{
    background:#F8FAFC;
    border-color:#D5E2F6;
  }
  .faq-q{
    width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:18px 22px;
    border:0;
    background:transparent;
    text-align:left;
    font-size:16px;
    font-weight:600;
    color:var(--ink);
    cursor:pointer;
  }
  .faq-icon{
    flex-shrink:0;
    width:20px;
    height:20px;
    position:relative;
    color:var(--brand-600);
  }
  .faq-icon::before,
  .faq-icon::after{
    content:"";
    position:absolute;
    background:currentColor;
    border-radius:2px;
    transition:transform .2s ease-out,opacity .2s ease-out;
  }
  .faq-icon::before{ left:2px; right:2px; top:9px; height:2px; }
  .faq-icon::after{ top:2px; bottom:2px; left:9px; width:2px; }
  .faq-item.is-open .faq-icon::after{ transform:scaleY(0); opacity:0; }
  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .24s ease-out;
  }
  .faq-a-inner{
    padding:0 22px 20px;
    font-size:15px;
    line-height:1.8;
    color:var(--ink-2);
  }

  /* ---------- Subscribe bar ---------- */
  .sub-bar{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:28px;
    flex-wrap:wrap;
    padding:32px 34px;
    background:var(--brand-50);
    border:1px solid var(--brand-100);
    border-radius:var(--r-card);
  }
  .sub-bar-title{
    font-size:20px;
    font-weight:600;
    color:var(--ink);
  }
  .sub-bar-text p{
    margin-top:8px;
    font-size:14px;
    line-height:1.7;
    color:var(--ink-2);
    max-width:520px;
  }
  .sub-form{
    display:flex;
    gap:10px;
    flex-wrap:wrap;
    align-items:center;
  }
  .sub-form input{
    height:46px;
    width:260px;
    max-width:100%;
    padding:0 14px;
    border:1px solid var(--input-border);
    border-radius:var(--r-ctl);
    background:#fff;
    color:var(--ink);
    font-size:15px;
    transition:border-color .16s ease-out,box-shadow .16s ease-out;
  }
  .sub-form input::placeholder{ color:var(--ink-3); }
  .sub-form input:focus{
    outline:none;
    border-color:var(--brand-600);
    box-shadow:0 0 0 4px rgba(21,84,192,.12);
  }
  .sub-form input.is-error{
    border-color:#DC2626;
    box-shadow:0 0 0 4px rgba(220,38,38,.10);
  }
  .sub-form button{ height:46px; }

  .form-msg{
    width:100%;
    font-size:14px;
    min-height:20px;
    color:var(--ink-3);
  }
  .form-msg.is-ok{
    display:inline-block;
    padding:8px 14px;
    border-radius:10px;
    background:var(--coral-50);
    color:#C1451A;
    font-weight:500;
  }
  .form-msg.is-error{ color:#DC2626; }

  /* ---------- Footer ---------- */
  .site-footer{
    background:#fff;
    border-top:1px solid var(--line);
    margin-top:0;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:4fr 2fr 3fr 3fr;
    gap:40px;
    padding:64px 0 48px;
  }
  .footer-brand p{
    margin-top:14px;
    font-size:14px;
    line-height:1.8;
    color:var(--ink-2);
    max-width:340px;
  }
  .footer h4{
    margin-bottom:16px;
    font-size:15px;
    font-weight:600;
    color:var(--ink);
  }
  .footer-links{
    list-style:none;
    display:flex;
    flex-direction:column;
    gap:10px;
  }
  .footer-links a{
    font-size:14px;
    color:var(--ink-2);
    transition:color .16s ease-out;
  }
  .footer-links a:hover{ color:var(--brand-600); }

  .footer-sub-form{
    display:flex;
    gap:8px;
    margin-top:14px;
    flex-wrap:wrap;
  }
  .footer-sub-form input{
    flex:1;
    min-width:140px;
    height:44px;
    padding:0 12px;
    border:1px solid var(--input-border);
    border-radius:var(--r-ctl);
    background:#fff;
    font-size:14px;
    transition:border-color .16s ease-out,box-shadow .16s ease-out;
  }
  .footer-sub-form input:focus{
    outline:none;
    border-color:var(--brand-600);
    box-shadow:0 0 0 4px rgba(21,84,192,.12);
  }
  .footer-sub-form button{
    height:44px;
    padding:0 20px;
    border:0;
    border-radius:var(--r-ctl);
    background:var(--brand-600);
    color:#fff;
    font-size:14px;
    font-weight:600;
    cursor:pointer;
    transition:background .16s ease-out;
  }
  .footer-sub-form button:hover{ background:var(--brand-700); }

  .footer-bottom{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    flex-wrap:wrap;
    padding:20px 0;
    border-top:1px solid var(--line);
    font-size:13px;
    color:var(--ink-3);
  }

  /* ---------- Responsive ---------- */
  @media (max-width:1024px){
    .main-nav{ display:none; }
    .nav-toggle{ display:inline-flex; }
    .header-actions .btn-primary{ display:none; }
    .section{ padding:64px 0; }
    .section-tight{ padding-top:28px; }
    .page-hero{ padding:40px 0 34px; }
    .page-hero-inner{ grid-template-columns:1fr; gap:28px; }
    .page-hero-media{ max-width:560px; }
    .footer-grid{ grid-template-columns:1fr 1fr; gap:32px; padding:52px 0 40px; }
    .tips-grid{ grid-template-columns:1fr; }
    .tip-item{ border-right:0; border-bottom:1px solid var(--line); }
    .tip-item:last-child{ border-bottom:0; }
  }

  @media (max-width:768px){
    .wrap{ padding-left:16px; padding-right:16px; }
    .replay-grid{ grid-template-columns:1fr; gap:20px; }
    .sec-head{ align-items:flex-start; }
    .sub-bar{ padding:24px 20px; }
    .sub-form{ width:100%; }
    .sub-form input{ width:100%; }
    .sub-form button{ width:100%; }
  }

  @media (max-width:520px){
    .footer-grid{ grid-template-columns:1fr; }
    .replay-body{ padding:18px 18px 20px; }
    .faq-q{ padding:16px 18px; font-size:15px; }
    .faq-a-inner{ padding:0 18px 18px; }
    .footer-bottom{ flex-direction:column; align-items:flex-start; }
  }

  @media (prefers-reduced-motion:reduce){
    *{
      transition-duration:.01ms !important;
      animation-duration:.01ms !important;
      animation-iteration-count:1 !important;
      scroll-behavior:auto !important;
    }
    .replay-card:hover{ transform:none; }
    .btn:hover{ transform:none; }
    .replay-card:hover .replay-thumb img{ transform:none; }
  }

/* roulang page: category4 */
:root{
    --brand-50:#EEF4FF; --brand-100:#DCE8FA; --brand-500:#2568D8; --brand-600:#1554C0; --brand-700:#0F4298;
    --coral-50:#FFF2EC; --coral-500:#FF7A45; --danger:#DC2626;
    --bg:#F7F9FC; --surface:#FFFFFF; --ink:#0F172A; --ink-2:#475569; --ink-3:#94A3B8;
    --line:#E4EAF2; --input-border:#D6DEEA; --panel-soft:#F8FAFC;
    --r-card:16px; --r-img:12px; --r-btn:10px;
    --sh-sm:0 1px 2px rgba(15,23,42,.04);
    --sh-md:0 6px 18px rgba(15,23,42,.06);
    --sh-lg:0 16px 36px rgba(15,23,42,.10);
    --wrap:1180px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;background:var(--bg);color:var(--ink);
    font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border-radius:var(--r-img)}
  a{color:inherit;text-decoration:none}
  button,input,textarea{font:inherit;color:inherit}
  [hidden]{display:none !important}
  .wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px;width:100%}

  /* ---------- header ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);
    border-bottom:1px solid var(--line);
    transition:box-shadow .18s ease-out,background-color .18s ease-out;
  }
  .site-header.is-scrolled{background:#fff;box-shadow:var(--sh-md)}
  .header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
  .logo{display:inline-flex;align-items:center;gap:8px;font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.2px}
  .logo-mark{width:28px;height:28px;border-radius:8px;background:var(--brand-600);position:relative;flex:none}
  .logo-mark::before{content:"";position:absolute;left:7px;right:7px;top:10px;height:2px;background:#fff;border-radius:2px}
  .logo-mark::after{content:"";position:absolute;left:13px;top:14px;bottom:7px;width:2px;background:#fff;border-radius:2px}
  .main-nav{display:flex;align-items:center;gap:6px}
  .nav-link{
    position:relative;padding:9px 12px;border-radius:8px;font-size:15px;font-weight:500;
    color:var(--ink-2);transition:color .16s ease-out,background-color .16s ease-out;
  }
  .nav-link:hover{color:var(--brand-600);background:var(--brand-50)}
  .nav-link.is-active{color:var(--brand-700);font-weight:600}
  .nav-link.is-active::after{
    content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
    background:var(--brand-600);border-radius:2px;
  }
  .header-actions{display:flex;align-items:center;gap:12px}
  .nav-toggle{
    display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
    background:#fff;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:5px;
  }
  .nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px}
  .nav-toggle:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px}

  .drawer-mask{
    position:fixed;inset:0;background:rgba(15,23,42,.42);opacity:0;pointer-events:none;
    transition:opacity .18s ease-out;z-index:70;
  }
  .drawer-mask.is-open{opacity:1;pointer-events:auto}
  .mobile-drawer{
    position:fixed;top:0;right:0;bottom:0;width:280px;background:#fff;z-index:80;
    transform:translateX(100%);transition:transform .2s ease-out;
    box-shadow:var(--sh-lg);padding:20px;overflow-y:auto;
  }
  .mobile-drawer.is-open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
  .drawer-close{
    width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:var(--r-btn);
    cursor:pointer;font-size:18px;line-height:1;color:var(--ink-2);
  }
  .drawer-link{
    display:flex;align-items:center;min-height:48px;border-bottom:1px solid var(--line);
    font-size:15px;font-weight:500;color:var(--ink-2);
  }
  .drawer-link.is-active{color:var(--brand-700);font-weight:600}
  .drawer-cta{margin:18px 0 8px}

  /* ---------- buttons / badges ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
    border:1px solid transparent;cursor:pointer;line-height:1.4;
    transition:transform .16s ease-out,background-color .16s ease-out,box-shadow .16s ease-out,color .16s ease-out,border-color .16s ease-out;
  }
  .btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--sh-sm)}
  .btn-primary:hover{background:var(--brand-700);transform:translateY(-2px);box-shadow:var(--sh-md)}
  .btn-primary:active{transform:translateY(0);box-shadow:var(--sh-sm)}
  .btn-ghost{background:#fff;color:var(--brand-700);border-color:var(--brand-500)}
  .btn-ghost:hover{background:var(--brand-50);transform:translateY(-2px);box-shadow:var(--sh-sm)}
  .btn-ghost:active{transform:translateY(0)}
  .btn-sm{padding:9px 16px;font-size:14px}
  .btn-block{width:100%}
  .btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
    outline:2px solid var(--brand-600);outline-offset:2px;
  }
  .badge{
    display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
    font-size:12px;font-weight:600;letter-spacing:.2px;
  }
  .badge-soft{background:var(--brand-50);color:var(--brand-700)}
  .badge-coral{background:var(--coral-50);color:#C2410C}
  .text-link{color:var(--brand-600);font-size:14px;font-weight:600;border-bottom:1px solid transparent;transition:border-color .16s}
  .text-link:hover{border-color:var(--brand-500)}

  /* ---------- page hero ---------- */
  .page-hero{
    background:linear-gradient(180deg,#EEF4FF 0%,#F7F9FC 100%);
    padding:56px 0 24px;border-bottom:1px solid var(--line);
  }
  .hero-lite-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:40px;align-items:center}
  .eyebrow{
    display:inline-block;font-size:13px;font-weight:600;color:var(--brand-700);
    background:#fff;border:1px solid var(--brand-100);border-radius:999px;padding:4px 12px;margin-bottom:14px;
  }
  .page-title{font-size:clamp(30px,4vw,42px);line-height:1.25;font-weight:700;margin:0 0 14px;letter-spacing:-.5px}
  .hero-lite-copy p{color:var(--ink-2);font-size:16px;margin:0 0 24px;max-width:34em}
  .hero-lite-actions{display:flex;flex-wrap:wrap;gap:12px}
  .hero-lite-media img{
    width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-card);
    box-shadow:var(--sh-lg);background:var(--brand-100);
  }
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);padding:18px 0 0}
  .breadcrumb a{color:var(--ink-2);transition:color .16s}
  .breadcrumb a:hover{color:var(--brand-600)}
  .breadcrumb [aria-current]{color:var(--ink-3)}

  /* ---------- sections ---------- */
  .section{padding:88px 0}
  .section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
  .sec-title{font-size:clamp(24px,3vw,30px);line-height:1.3;font-weight:600;margin:0 0 10px;letter-spacing:-.3px}
  .sec-sub{color:var(--ink-2);font-size:15px;margin:0;max-width:46em}
  .sec-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap}

  /* ---------- quick list ---------- */
  .quick-list{display:grid;grid-template-columns:1fr 1fr;gap:20px}
  .quick-item{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
    padding:22px 24px;display:flex;gap:18px;box-shadow:var(--sh-sm);
    transition:box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
  }
  .quick-item:hover{box-shadow:var(--sh-md);transform:translateY(-2px);border-color:var(--brand-100)}
  .quick-num{
    font-size:24px;font-weight:700;color:var(--brand-100);line-height:1.2;flex:none;
    font-variant-numeric:tabular-nums;min-width:38px;
  }
  .quick-item h3{font-size:17px;font-weight:600;margin:0 0 6px;line-height:1.5}
  .quick-item p{margin:0;font-size:14px;color:var(--ink-2);line-height:1.75}

  /* ---------- steps ---------- */
  .step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
  .step-card{
    background:var(--panel-soft);border:1px solid var(--line);border-radius:var(--r-card);
    padding:24px 22px;
  }
  .step-card .step-tag{font-size:12px;font-weight:600;color:var(--brand-700);background:#fff;border:1px solid var(--brand-100);border-radius:999px;padding:3px 10px;display:inline-block;margin-bottom:14px}
  .step-card h3{font-size:17px;font-weight:600;margin:0 0 8px}
  .step-card p{margin:0;font-size:14px;color:var(--ink-2)}

  /* ---------- faq ---------- */
  .faq-list{display:grid;gap:12px;max-width:920px}
  .faq-item{border:1px solid var(--line);border-radius:12px;background:#fff;overflow:hidden;transition:box-shadow .18s ease-out,border-color .18s ease-out}
  .faq-item:hover{border-color:var(--brand-100);box-shadow:var(--sh-sm)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    background:transparent;border:0;text-align:left;cursor:pointer;
    padding:18px 22px;font-size:16px;font-weight:600;line-height:1.6;
  }
  .faq-icon{
    flex:none;width:20px;height:20px;position:relative;
  }
  .faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-600);border-radius:2px}
  .faq-icon::before{left:2px;right:2px;top:9px;height:2px}
  .faq-icon::after{left:9px;top:2px;bottom:2px;width:2px;transition:transform .18s ease-out,opacity .18s ease-out}
  .faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
  .faq-item.is-open{background:#fff;border-color:var(--brand-100);box-shadow:var(--sh-md)}
  .faq-a{
    max-height:0;overflow:hidden;transition:max-height .22s ease-out;
    background:var(--panel-soft);
  }
  .faq-a p{margin:0;padding:16px 22px 20px;font-size:15px;color:var(--ink-2);line-height:1.8}

  /* ---------- service info strip ---------- */
  .info-strip{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .info-cell{padding:28px 26px;border-right:1px solid var(--line)}
  .info-cell:last-child{border-right:0}
  .info-cell h3{font-size:16px;font-weight:600;margin:0 0 8px}
  .info-cell p{margin:0;font-size:14px;color:var(--ink-2)}
  .info-cell .info-strong{display:block;font-size:15px;font-weight:600;color:var(--brand-700);margin-bottom:6px;font-variant-numeric:tabular-nums}

  /* ---------- contact ---------- */
  .contact-panel{
    display:grid;grid-template-columns:0.9fr 1.1fr;gap:0;
    background:#fff;border:1px solid var(--brand-100);border-radius:var(--r-card);
    box-shadow:var(--sh-md);overflow:hidden;
  }
  .contact-side{background:var(--brand-50);padding:36px 32px;border-right:1px solid var(--brand-100)}
  .contact-side h2{font-size:clamp(22px,2.6vw,28px);font-weight:600;margin:0 0 12px;line-height:1.35}
  .contact-side p{margin:0 0 20px;font-size:15px;color:var(--ink-2)}
  .check-list{list-style:none;padding:0;margin:0;display:grid;gap:10px}
  .check-list li{position:relative;padding-left:22px;font-size:14px;color:var(--ink-2)}
  .check-list li::before{
    content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:3px;background:var(--brand-500);
  }
  .contact-form{padding:36px 32px;display:grid;gap:18px}
  .field{display:grid;gap:8px}
  .field label{font-size:14px;font-weight:600}
  .field .hint{font-size:13px;color:var(--ink-3);font-weight:400}
  .field input,.field textarea{
    width:100%;border:1px solid var(--input-border);border-radius:var(--r-btn);
    padding:12px 14px;font-size:15px;background:#fff;
    transition:border-color .16s ease-out,box-shadow .16s ease-out;
  }
  .field input{height:46px}
  .field textarea{min-height:118px;resize:vertical;line-height:1.7}
  .field input:focus,.field textarea:focus{
    outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(37,104,216,.14);
  }
  .field.has-error input,.field.has-error textarea{border-color:var(--danger);box-shadow:0 0 0 3px rgba(220,38,38,.10)}
  .field-err{font-size:13px;color:var(--danger);margin:0;min-height:0}
  .form-success{
    background:var(--coral-50);color:#B8420F;border:1px solid #FFD9C7;border-radius:12px;
    padding:14px 16px;font-size:14px;line-height:1.7;
  }
  .form-note{margin:0;font-size:13px;color:var(--ink-3)}

  /* ---------- footer ---------- */
  .site-footer{background:#fff;border-top:1px solid var(--line);padding:64px 0 0;margin-top:0}
  .footer-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:32px;padding-bottom:40px}
  .footer-brand p{margin:14px 0 0;font-size:14px;color:var(--ink-2);max-width:32em}
  .footer h4{font-size:15px;font-weight:600;margin:0 0 14px}
  .footer-links{list-style:none;padding:0;margin:0;display:grid;gap:10px}
  .footer-links a{font-size:14px;color:var(--ink-2);transition:color .16s ease-out}
  .footer-links a:hover{color:var(--brand-600)}
  .footer-sub-form{display:flex;gap:8px;margin-top:14px}
  .footer-sub-form input{
    flex:1;min-width:0;height:42px;border:1px solid var(--input-border);border-radius:var(--r-btn);
    padding:0 12px;font-size:14px;background:#fff;
  }
  .footer-sub-form input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(37,104,216,.14)}
  .footer-sub-form button{
    height:42px;padding:0 18px;border:0;border-radius:var(--r-btn);background:var(--brand-600);
    color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:background-color .16s ease-out;
  }
  .footer-sub-form button:hover{background:var(--brand-700)}
  .form-msg{min-height:18px;margin:8px 0 0;color:var(--ink-2)}
  .form-msg.is-ok{color:#B8420F}
  .form-msg.is-err{color:var(--danger)}
  .footer-bottom{
    border-top:1px solid var(--line);padding:20px 0 28px;display:flex;align-items:center;
    justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--ink-3);
  }
  .footer-bottom p{margin:0}

  /* ---------- responsive ---------- */
  @media (max-width:1023px){
    .main-nav{display:none}
    .nav-toggle{display:inline-flex}
    .header-inner{min-height:64px}
    .section{padding:64px 0}
    .hero-lite-grid{grid-template-columns:1fr;gap:28px}
    .hero-lite-media{order:2}
    .quick-list{grid-template-columns:1fr}
    .step-grid{grid-template-columns:1fr 1fr}
    .contact-panel{grid-template-columns:1fr}
    .contact-side{border-right:0;border-bottom:1px solid var(--brand-100)}
    .info-strip{grid-template-columns:1fr}
    .info-cell{border-right:0;border-bottom:1px solid var(--line)}
    .info-cell:last-child{border-bottom:0}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  }
  @media (max-width:640px){
    .wrap{padding:0 16px}
    .section{padding:44px 0}
    .page-hero{padding:36px 0 16px}
    .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:24px}
    .step-grid{grid-template-columns:1fr}
    .quick-item{padding:18px}
    .contact-side,.contact-form{padding:24px 20px}
    .hero-lite-actions .btn{width:100%}
    .footer-grid{grid-template-columns:1fr}
    .footer-sub-form{flex-direction:column}
    .footer-sub-form button{width:100%}
    .footer-bottom{flex-direction:column;align-items:flex-start}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition-duration:.001ms !important;animation-duration:.001ms !important}
    html{scroll-behavior:auto}
    .quick-item:hover,.btn:hover{transform:none !important}
  }