/* roulang page: index */
:root{
  --bg-base:#070E18;
  --bg-section:#0B1524;
  --bg-section-alt:#0E1A2B;
  --bg-elevated:rgba(255,255,255,.05);
  --c-primary:#2FD8C0;
  --c-primary-deep:#0E8F84;
  --c-accent:#FFB86B;
  --glass-bg:rgba(255,255,255,.05);
  --glass-blur:14px;
  --border-soft:rgba(255,255,255,.08);
  --border-strong:rgba(47,216,192,.45);
  --tx-1:#E8F0F7;
  --tx-2:#9FB2C6;
  --tx-3:#6E8199;
  --ok:#3DDC97;
  --err:#FF6B6B;
  --r-card:16px;
  --r-btn:10px;
  --r-chip:999px;
  --r-img:12px;
  --sh-card:0 1px 0 rgba(255,255,255,.06) inset, 0 20px 40px -24px rgba(0,0,0,.7);
  --sh-glow:0 0 0 1px rgba(47,216,192,.5), 0 12px 32px -12px rgba(47,216,192,.55);
  --ease:cubic-bezier(.22,.61,.36,1);
}
.ky-body{
  margin:0;
  background:var(--bg-base);
  color:var(--tx-2);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
.ky-body a{color:inherit;text-decoration:none}
.ky-body img{max-width:100%;display:block}
.ky-body h1,.ky-body h2,.ky-body h3,.ky-body h4{margin:0;color:var(--tx-1);font-weight:700;letter-spacing:.2px}
.ky-body p{margin:0}
.ky-body ul,.ky-body ol{margin:0;padding:0;list-style:none}
.ky-body button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
.ky-body input,.ky-body select,.ky-body textarea{font:inherit;color:inherit}
.mono{font-family:"SF Mono",ui-monospace,"JetBrains Mono","Cascadia Mono",Consolas,monospace;font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:80;transition:background .3s var(--ease),border-color .3s var(--ease),backdrop-filter .3s var(--ease)}
.site-header.is-stuck{background:rgba(7,14,24,.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--border-soft)}
.nav-wrap{display:flex;align-items:center;gap:32px;height:78px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--tx-1);white-space:nowrap;letter-spacing:.3px}
.brand-mark{position:relative;width:24px;height:24px;border-radius:8px;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-deep));box-shadow:0 0 20px -4px rgba(47,216,192,.75)}
.brand-mark::after{content:"";position:absolute;inset:7px;border-radius:3px;background:#08131F}
.nav-chips{display:flex;align-items:center;gap:8px;flex:1;overflow-x:auto;scrollbar-width:none;padding:4px 2px}
.nav-chips::-webkit-scrollbar{display:none}
.chip{display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:var(--r-chip);border:1px solid var(--border-soft);color:var(--tx-2);font-size:14px;white-space:nowrap;transition:all .18s var(--ease)}
.chip:hover{transform:translateY(-1px);border-color:var(--border-strong);color:var(--tx-1)}
.chip.is-active{background:rgba(47,216,192,.12);border-color:var(--border-strong);color:var(--tx-1);box-shadow:0 0 0 1px rgba(47,216,192,.16),0 8px 24px -18px rgba(47,216,192,.9)}
.nav-actions{display:flex;align-items:center;gap:12px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;transition:all .18s var(--ease);white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,#4BE6CE,#16B7A2);color:#05221E;box-shadow:var(--sh-glow)}
.btn-primary:hover{transform:translateY(-1px) scale(1.02);filter:brightness(1.06)}
.btn-primary:active{transform:scale(.99)}
.btn-outline{background:transparent;border-color:var(--border-strong);color:var(--c-primary)}
.btn-outline:hover{background:rgba(47,216,192,.08)}
.btn-ghost{background:transparent;color:var(--tx-2);padding:0 4px;height:44px}
.btn-ghost:hover{color:var(--c-primary)}
.btn-ghost .arrow{transition:transform .18s var(--ease)}
.btn-ghost:hover .arrow{transform:translateX(4px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.menu-toggle{display:none;width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--border-soft);align-items:center;justify-content:center}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--tx-1);border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--tx-1);border-radius:2px}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.mobile-drawer{display:none;position:fixed;inset:78px 0 0 0;background:rgba(7,14,24,.98);backdrop-filter:blur(14px);padding:28px 24px 40px;flex-direction:column;gap:12px;z-index:70}
.mobile-drawer.is-open{display:flex}
.mobile-drawer .chip{height:52px;justify-content:center;font-size:16px}
.mobile-drawer .btn{margin-top:12px;width:100%}

/* ---------- hero ---------- */
.hero{position:relative;padding:158px 0 92px;overflow:hidden;border-bottom:1px solid var(--border-soft)}
.hero-bg{position:absolute;inset:0;background-image:linear-gradient(rgba(7,14,24,.74),rgba(7,14,24,.92)),url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center}
.hero-mesh{position:absolute;inset:0;background-image:linear-gradient(rgba(47,216,192,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(47,216,192,.03) 1px,transparent 1px);background-size:24px 24px}
.hero-glow{position:absolute;width:480px;height:480px;border-radius:50%;background:radial-gradient(circle,rgba(47,216,192,.10),transparent 70%);pointer-events:none}
.hero-glow.g1{top:-140px;left:-140px}
.hero-glow.g2{bottom:-180px;right:-150px}
.hero-grid{position:relative;display:grid;grid-template-columns:1.32fr 1fr;gap:56px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-chip);background:rgba(47,216,192,.10);border:1px solid var(--border-strong);color:var(--c-primary);font-size:13px;letter-spacing:.6px;line-height:1.6}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 10px rgba(47,216,192,.9)}
.hero-title{margin:22px 0 0;font-size:clamp(30px,4.6vw,52px);line-height:1.25;letter-spacing:-.5px}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.9;color:var(--tx-2);max-width:620px}
.hero-cta{display:flex;align-items:center;gap:14px;margin-top:32px;flex-wrap:wrap}
.trust-row{display:flex;gap:36px;margin-top:40px;flex-wrap:wrap}
.trust-item{display:flex;flex-direction:column;gap:2px}
.trust-num{font-size:20px;font-weight:700;color:var(--tx-1)}
.trust-label{font-size:13px;color:var(--tx-3)}
.glass{background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--border-soft);border-radius:20px;box-shadow:var(--sh-card)}
.hero-panel{padding:26px;animation:panelFloat 6s ease-in-out infinite}
@keyframes panelFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
.panel-head{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--tx-3)}
.panel-dot{display:inline-flex;align-items:center;gap:6px;color:var(--ok)}
.panel-dot::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 10px rgba(61,220,151,.9)}
.panel-main{margin-top:18px}
.panel-main-num{font-size:clamp(38px,5vw,52px);font-weight:700;color:var(--c-primary);line-height:1.1;text-shadow:0 0 28px rgba(47,216,192,.35)}
.panel-main-label{font-size:13px;color:var(--tx-3);margin-top:6px}
.panel-sub{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px;padding-top:18px;border-top:1px solid var(--border-soft)}
.panel-sub-num{font-size:19px;font-weight:700;color:var(--tx-1)}
.panel-sub-label{font-size:12px;color:var(--tx-3);margin-top:2px}
.panel-chart{margin-top:20px}
.panel-chart svg{width:100%;height:64px;display:block}

/* ---------- anchor bar ---------- */
.anchor-bar{border-bottom:1px solid var(--border-soft);background:var(--bg-section)}
.anchor-inner{display:flex;align-items:center;gap:10px;padding:14px 0;overflow-x:auto;scrollbar-width:none}
.anchor-inner::-webkit-scrollbar{display:none}
.anchor-chip{display:inline-flex;align-items:center;height:34px;padding:0 14px;border-radius:var(--r-chip);font-size:13px;color:var(--tx-2);border:1px solid transparent;transition:all .18s var(--ease);white-space:nowrap}
.anchor-chip:hover{color:var(--tx-1);border-color:var(--border-soft)}
.anchor-chip.is-active{color:var(--c-primary);border-color:var(--border-strong);background:rgba(47,216,192,.08)}

/* ---------- sections ---------- */
.section{padding:100px 0;border-bottom:1px solid var(--border-soft)}
.section.alt{background:var(--bg-section)}
.section.alt2{background:var(--bg-section-alt)}
.section-head{max-width:760px;margin-bottom:48px}
.section-tag{display:inline-block;font-size:13px;letter-spacing:1.4px;color:var(--c-primary);margin-bottom:14px}
.sec-title{font-size:clamp(22px,3vw,32px);line-height:1.35}
.sec-desc{margin-top:16px;font-size:15.5px;color:var(--tx-2);line-height:1.9}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:48px;flex-wrap:wrap}

/* ---------- board ---------- */
.board-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.board-card{padding:24px;border-radius:var(--r-card);background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--border-soft);box-shadow:var(--sh-card);display:flex;flex-direction:column;justify-content:space-between;min-height:168px}
.board-card--wide{grid-column:span 6}
.board-card--narrow{grid-column:span 2}
.board-num{font-size:36px;font-weight:700;color:var(--c-primary);line-height:1.1;text-shadow:0 0 24px rgba(47,216,192,.3)}
.board-num-sm{font-size:26px;font-weight:700;color:var(--c-primary);line-height:1.2;text-shadow:0 0 20px rgba(47,216,192,.28)}
.board-unit{font-size:14px;color:var(--tx-3);margin-left:4px}
.board-title{font-size:14px;color:var(--tx-1);font-weight:600;margin-top:10px}
.board-note{font-size:12px;color:var(--tx-3);margin-top:auto;line-height:1.7}
.mini-trend{margin-top:16px}
.mini-trend svg{width:100%;height:48px;display:block}

/* ---------- service matrix ---------- */
.matrix-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.matrix-main{grid-column:span 8}
.matrix-side{grid-column:span 4;display:flex;flex-direction:column;gap:24px}
.card{background:var(--bg-section-alt);border:1px solid var(--border-soft);border-radius:var(--r-card);box-shadow:var(--sh-card);padding:28px;transition:transform .18s var(--ease),border-color .18s var(--ease)}
.card:hover{transform:translateY(-2px);border-color:var(--border-strong)}
.card-icon{width:44px;height:44px;border-radius:12px;border:1px solid var(--border-strong);display:flex;align-items:center;justify-content:center;color:var(--c-primary);margin-bottom:18px}
.card h3{font-size:20px;line-height:1.4}
.card p{margin-top:12px;font-size:15px;color:var(--tx-2)}
.card-figure{margin-top:20px;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--border-soft)}
.card-figure img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease)}
.card:hover .card-figure img{transform:scale(1.03)}
.bullet-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.bullet-list li{position:relative;padding-left:18px;font-size:14.5px;color:var(--tx-2)}
.bullet-list li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 8px rgba(47,216,192,.7)}
.card-link{display:inline-flex;align-items:center;gap:6px;margin-top:22px;font-size:14.5px;font-weight:600;color:var(--c-primary)}
.card-link .arrow{transition:transform .18s var(--ease)}
.card-link:hover .arrow{transform:translateX(4px)}
.cap-chips{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.cap-chip{display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:var(--r-chip);border:1px solid var(--border-soft);color:var(--tx-2);font-size:14px;transition:all .18s var(--ease)}
.cap-chip:hover{color:var(--c-primary);border-color:var(--border-strong);background:rgba(47,216,192,.06);transform:translateY(-1px)}

/* ---------- compare ---------- */
.compare-grid{position:relative;display:grid;grid-template-columns:1fr 64px 1fr;row-gap:16px;align-items:center}
.compare-grid::before{content:"";position:absolute;left:50%;top:16px;bottom:16px;width:1px;background:linear-gradient(180deg,transparent,rgba(47,216,192,.4),transparent)}
.compare-row{display:contents}
.compare-item{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px;border-radius:var(--r-card);background:var(--bg-section-alt);border:1px solid var(--border-soft)}
.compare-item.old .ci-val{color:var(--tx-3)}
.compare-item.now{border-color:var(--border-strong);background:rgba(47,216,192,.06)}
.compare-item.now .ci-val{color:var(--c-primary);font-weight:600}
.ci-name{font-size:14px;color:var(--tx-2)}
.ci-val{font-size:14.5px;white-space:nowrap}
.compare-node{width:11px;height:11px;border-radius:50%;background:var(--c-primary);margin:0 auto;box-shadow:0 0 0 4px rgba(47,216,192,.14);position:relative;z-index:1}
.legend-row{display:flex;gap:32px;margin-bottom:26px;flex-wrap:wrap}
.legend{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--tx-3)}
.legend i{width:10px;height:10px;border-radius:3px;display:inline-block}
.legend.old i{background:rgba(255,255,255,.18)}
.legend.now i{background:var(--c-primary);box-shadow:0 0 10px rgba(47,216,192,.8)}
.progress-block{margin-top:44px;padding:24px;border-radius:var(--r-card);background:var(--bg-section-alt);border:1px solid var(--border-soft)}
.progress-top{display:flex;justify-content:space-between;align-items:baseline;gap:16px;font-size:14px;color:var(--tx-2)}
.progress-top b{font-size:20px;color:var(--c-primary)}
.progress-track{margin-top:14px;height:8px;border-radius:999px;background:rgba(255,255,255,.06);overflow:hidden}
.progress-fill{height:100%;width:92%;border-radius:999px;background:linear-gradient(90deg,#16B7A2,var(--c-primary));box-shadow:0 0 18px rgba(47,216,192,.55)}

/* ---------- posts ---------- */
.post-list{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.post-card{position:relative;display:grid;grid-template-columns:180px 1fr;gap:20px;padding:18px;border-radius:var(--r-card);background:var(--bg-section);border:1px solid var(--border-soft);box-shadow:var(--sh-card);transition:transform .18s var(--ease),border-color .18s var(--ease)}
.post-card:hover{transform:translateY(-2px);border-color:var(--border-strong)}
.post-card::before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:3px;background:var(--c-primary);opacity:0;transition:opacity .18s var(--ease)}
.post-card:hover::before{opacity:1}
.post-thumb{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--border-soft);aspect-ratio:16/9}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease)}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.post-body{display:flex;flex-direction:column;min-width:0}
.post-title{font-size:16.5px;line-height:1.55;color:var(--tx-1);font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .18s var(--ease)}
.post-card:hover .post-title{color:var(--c-primary)}
.post-summary{margin-top:8px;font-size:14px;color:var(--tx-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-chip);font-size:12px;border:1px solid var(--border-strong);color:var(--c-primary);background:rgba(47,216,192,.08)}
.badge-amber{border-color:rgba(255,184,107,.5);color:var(--c-accent);background:rgba(255,184,107,.08)}
.post-time{font-size:12.5px;color:var(--tx-3)}
.post-arrow{color:var(--tx-3);transition:transform .18s var(--ease),color .18s var(--ease)}
.post-card:hover .post-arrow{color:var(--c-primary);transform:translateX(3px)}
.empty-state{border:1px dashed var(--border-soft);border-radius:var(--r-card);padding:56px 24px;text-align:center;background:var(--bg-section)}
.empty-state svg{margin:0 auto 16px;display:block;color:var(--tx-3)}
.empty-title{font-size:16px;color:var(--tx-1);font-weight:600}
.empty-desc{margin-top:8px;font-size:14px;color:var(--tx-3)}
.empty-state .btn{margin-top:22px}

/* ---------- proof ---------- */
.proof-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.proof-card{padding:28px;border-radius:var(--r-card);background:var(--bg-section);border:1px solid var(--border-soft);box-shadow:var(--sh-card);transition:transform .18s var(--ease),border-color .18s var(--ease)}
.proof-card:hover{transform:translateY(-2px);border-color:var(--border-strong)}
.proof-num{font-size:30px;font-weight:700;color:var(--tx-1);line-height:1.2}
.proof-num span{font-size:15px;color:var(--tx-3);margin-left:4px;font-weight:400}
.proof-text{margin-top:12px;font-size:14.5px;color:var(--tx-2);line-height:1.8}
.quote-block{margin-top:28px;display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.quote{padding:24px;border-radius:var(--r-card);background:var(--bg-section-alt);border:1px solid var(--border-soft);border-left:3px solid var(--c-primary)}
.quote p{font-size:14.5px;color:var(--tx-2);line-height:1.9}
.quote footer{margin-top:14px;font-size:13px;color:var(--tx-3)}

/* ---------- faq ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border:1px solid var(--border-soft);border-radius:var(--r-card);background:var(--bg-section);margin-bottom:14px;overflow:hidden;transition:border-color .18s var(--ease)}
.faq-item.is-open{border-color:var(--border-strong)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;padding:20px 22px;font-size:16.5px;font-weight:600;color:var(--tx-1);position:relative}
.faq-q::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:var(--c-primary);opacity:0;transition:opacity .18s var(--ease)}
.faq-item.is-open .faq-q::before{opacity:1}
.faq-plus{flex:0 0 auto;position:relative;width:16px;height:16px}
.faq-plus::before,.faq-plus::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform .32s var(--ease)}
.faq-plus::before{left:0;top:7px;width:16px;height:2px}
.faq-plus::after{left:7px;top:0;width:2px;height:16px}
.faq-item.is-open .faq-plus::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{padding:0 22px 22px;font-size:15px;line-height:1.9;color:var(--tx-2)}

/* ---------- form ---------- */
.cta-panel{padding:40px;border-radius:20px;background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--border-soft);box-shadow:var(--sh-card);display:grid;grid-template-columns:1.15fr .85fr;gap:48px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:span 2}
.field label{font-size:13.5px;color:var(--tx-2)}
.field input,.field select,.field textarea{width:100%;background:#0A1421;border:1px solid var(--border-soft);border-radius:var(--r-btn);padding:12px 14px;font-size:14.5px;color:var(--tx-1);transition:border-color .18s var(--ease),box-shadow .18s var(--ease);outline:none}
.field textarea{min-height:112px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#5A6E86}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(47,216,192,.16)}
.form-actions{grid-column:span 2;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.form-tip{font-size:13px;color:var(--tx-3)}
.form-tip.is-ok{color:var(--ok)}
.cta-side h3{font-size:22px;line-height:1.4}
.cta-side p{margin-top:14px;font-size:15px;color:var(--tx-2)}
.mini-stats{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.mini-stat{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 16px;border-radius:var(--r-btn);background:var(--bg-section-alt);border:1px solid var(--border-soft)}
.mini-stat span{font-size:13.5px;color:var(--tx-3)}
.mini-stat b{font-size:15px;color:var(--c-primary)}
.contact-line{margin-top:26px;display:flex;gap:28px;flex-wrap:wrap;font-size:14px;color:var(--tx-3)}
.contact-line b{color:var(--tx-1);font-weight:600}

/* ---------- footer ---------- */
.site-footer{background:#060C14;border-top:1px solid var(--border-soft);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.foot-brand p{margin-top:16px;font-size:14px;color:var(--tx-3);line-height:1.8;max-width:320px}
.foot-title{font-size:14px;color:var(--tx-1);font-weight:600;margin-bottom:16px}
.foot-list{display:flex;flex-direction:column;gap:10px}
.foot-link{font-size:14px;color:var(--tx-3);transition:color .18s var(--ease)}
.foot-link:hover{color:var(--c-primary)}
.social-row{display:flex;gap:10px;margin-top:20px}
.social-row span{width:36px;height:36px;border-radius:10px;border:1px solid var(--border-soft);display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--tx-3)}
.copyright{margin-top:56px;border-top:1px solid var(--border-soft);padding:22px 0;font-size:13px;color:var(--tx-3);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .board-card--wide{grid-column:span 12}
  .board-card--narrow{grid-column:span 4}
  .matrix-main{grid-column:span 12}
  .matrix-side{grid-column:span 12;flex-direction:row}
  .matrix-side .card{flex:1}
  .cta-panel{grid-template-columns:1fr;gap:36px;padding:32px}
  .proof-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:1024px){
  .nav-chips{display:none}
  .nav-actions .btn{display:none}
  .menu-toggle{display:flex}
  .section{padding:80px 0}
}
@media (max-width:860px){
  .hero{padding:132px 0 72px}
  .post-list{grid-template-columns:1fr}
  .quote-block{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .compare-grid{grid-template-columns:1fr;row-gap:16px}
  .compare-grid::before{display:none}
  .compare-row{display:grid;gap:10px;padding:18px;border-radius:var(--r-card);background:var(--bg-section-alt);border:1px solid var(--border-soft)}
  .compare-item{border:0;background:none;padding:0;flex-direction:column;align-items:flex-start;gap:4px}
  .compare-item.now .ci-name{display:none}
  .compare-item.now .ci-val{font-size:16px}
  .compare-item::before{content:attr(data-tag);font-size:12px;color:var(--tx-3);letter-spacing:.6px}
  .compare-item.now::before{color:var(--c-primary)}
  .compare-node{display:none}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .board-card--narrow{grid-column:span 12}
  .matrix-side{flex-direction:column}
  .proof-grid{grid-template-columns:1fr}
  .post-card{grid-template-columns:1fr}
  .post-thumb{aspect-ratio:16/9}
  .form-grid{grid-template-columns:1fr}
  .field.full,.form-actions{grid-column:span 1}
  .cta-panel{padding:24px}
  .trust-row{gap:24px}
  .section{padding:64px 0}
  .footer-grid{grid-template-columns:1fr}
}

/* roulang page: article */
:root{
  --bg-base:#070E18;
  --bg-section:#0B1524;
  --bg-section-alt:#0E1A2B;
  --bg-elevated:rgba(255,255,255,.05);
  --c-primary:#2FD8C0;
  --c-primary-deep:#0E8F84;
  --c-accent:#FFB86B;
  --glass-bg:rgba(255,255,255,.05);
  --glass-blur:14px;
  --border-soft:rgba(255,255,255,.08);
  --border-strong:rgba(47,216,192,.45);
  --tx-1:#E8F0F7;
  --tx-2:#9FB2C6;
  --tx-3:#6E8199;
  --ok:#3DDC97;
  --warn:#FFB86B;
  --err:#FF6B6B;
  --r-card:16px;
  --r-btn:10px;
  --r-chip:999px;
  --r-img:12px;
  --sh-card:0 1px 0 rgba(255,255,255,.06) inset,0 20px 40px -24px rgba(0,0,0,.7);
  --sh-glow:0 0 0 1px rgba(47,216,192,.5),0 12px 32px -12px rgba(47,216,192,.55);
  --ease:cubic-bezier(.22,.61,.36,1);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--tx-2);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease),border-color .18s var(--ease)}
img{max-width:100%;display:block;border-radius:var(--r-img)}
h1,h2,h3,h4{color:var(--tx-1);margin:0;line-height:1.35;font-weight:700}
p{margin:0 0 18px}
ul,ol{margin:0 0 18px;padding-left:1.3em}
li{margin-bottom:.5em;line-height:1.85}
button,input,textarea,select{font:inherit;color:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}

/* ============ header / nav ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,14,24,.72);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,14,24,.92);
  border-bottom-color:var(--border-soft);
}
.header-inner{
  display:flex;align-items:center;gap:32px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:30px;height:30px;border-radius:9px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--c-primary),var(--c-primary-deep));
  display:grid;place-items:center;
  color:#04201C;font-weight:800;font-size:15px;
  box-shadow:0 8px 20px -10px rgba(47,216,192,.75);
}
.brand-text{font-size:17px;font-weight:800;color:var(--tx-1);letter-spacing:.2px;white-space:nowrap}
.brand-text em{font-style:normal;color:var(--c-primary)}
.nav-wrap{flex:1 1 auto;min-width:0;position:relative;display:flex;justify-content:center}
.nav-wrap::before,.nav-wrap::after{
  content:"";position:absolute;top:0;bottom:0;width:28px;pointer-events:none;z-index:2;
}
.nav-wrap::before{left:0;background:linear-gradient(90deg,rgba(7,14,24,.95),rgba(7,14,24,0))}
.nav-wrap::after{right:0;background:linear-gradient(270deg,rgba(7,14,24,.95),rgba(7,14,24,0))}
.nav-chips{
  display:flex;align-items:center;gap:10px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  padding:6px 2px;
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;
  padding:8px 16px;border-radius:var(--r-chip);
  border:1px solid var(--border-soft);
  color:var(--tx-2);font-size:14px;line-height:1.4;white-space:nowrap;
  transition:all .18s var(--ease);
}
.chip:hover{transform:translateY(-1px);border-color:var(--border-strong);color:var(--tx-1)}
.chip.is-active{
  background:rgba(47,216,192,.12);
  border-color:var(--border-strong);
  color:var(--c-primary);
  box-shadow:0 0 0 1px rgba(47,216,192,.18),0 0 18px -6px rgba(47,216,192,.5);
}
.header-cta{flex:0 0 auto}
.nav-toggle{
  display:none;flex:0 0 auto;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--border-soft);background:transparent;
  color:var(--tx-1);cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--tx-1);margin:4px auto;border-radius:2px;transition:.2s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-drawer{
  display:none;position:fixed;inset:72px 0 0 0;z-index:55;
  background:rgba(7,14,24,.98);
  border-top:1px solid var(--border-soft);
  padding:28px 24px 40px;
  overflow-y:auto;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer .chip{display:block;width:100%;text-align:center;margin-bottom:14px;padding:14px 16px;font-size:16px}
.mobile-drawer .btn{width:100%;margin-top:12px}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:all .18s var(--ease);white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#4CE6CF,var(--c-primary));
  color:#04201C;box-shadow:var(--sh-glow);
}
.btn-primary:hover{transform:scale(1.02);filter:brightness(1.07)}
.btn-primary:active{transform:scale(.99)}
.btn-ghost{background:transparent;border-color:var(--border-strong);color:var(--c-primary)}
.btn-ghost:hover{background:rgba(47,216,192,.08);color:var(--tx-1)}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--c-primary);font-weight:600;font-size:15px;
  background:none;border:none;padding:8px 0;cursor:pointer;
}
.btn-text .arrow{transition:transform .18s var(--ease)}
.btn-text:hover .arrow{transform:translateX(4px)}

/* ============ badge ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-chip);
  font-size:13px;line-height:1.6;
  border:1px solid var(--border-strong);
  color:var(--c-primary);background:rgba(47,216,192,.08);
}
.badge-warn{border-color:rgba(255,184,107,.5);color:var(--c-accent);background:rgba(255,184,107,.08)}

/* ============ article layout ============ */
.article-hero{
  position:relative;
  padding:48px 0 40px;
  background:
    radial-gradient(480px 480px at 8% 0%,rgba(47,216,192,.10),transparent 70%),
    radial-gradient(480px 480px at 96% 100%,rgba(47,216,192,.08),transparent 70%),
    linear-gradient(180deg,var(--bg-section),var(--bg-base));
  border-bottom:1px solid var(--border-soft);
  overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:24px 24px;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--tx-3);position:relative;z-index:1;margin-bottom:22px;
}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:var(--tx-3);opacity:.6}
.breadcrumb .current{color:var(--tx-2);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-h1{
  font-size:clamp(28px,4.4vw,44px);line-height:1.28;
  max-width:900px;position:relative;z-index:1;margin-bottom:18px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:13.5px;color:var(--tx-3);position:relative;z-index:1;
}
.article-meta .unit{display:inline-flex;align-items:center;gap:6px}
.article-meta .divider{width:1px;height:14px;background:var(--border-soft)}
.cover-wrap{position:relative;z-index:1;margin-top:32px}
.cover-wrap img{
  width:100%;height:auto;max-height:420px;object-fit:cover;
  border:1px solid var(--border-soft);border-radius:var(--r-img);
}

/* ============ body grid ============ */
.article-main{padding:64px 0 96px}
.article-grid{
  display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:56px;
  align-items:start;
}
.reading{max-width:820px;min-width:0}
.reading p{font-size:16px;line-height:1.9;color:var(--tx-2);margin-bottom:18px}
.reading h2{
  font-size:clamp(21px,2.6vw,28px);margin:40px 0 16px;
  padding-left:14px;position:relative;
}
.reading h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:2px;
  background:var(--c-primary);
}
.reading h3{font-size:19px;font-weight:700;margin:30px 0 12px}
.reading ul,.reading ol{padding-left:1.4em;margin-bottom:20px}
.reading li{font-size:15.5px;color:var(--tx-2)}
.reading li::marker{color:var(--c-primary)}
.reading a{
  color:var(--c-primary);
  text-decoration:underline;text-underline-offset:3px;
  text-decoration-color:rgba(47,216,192,.45);
}
.reading a:hover{text-decoration-color:var(--c-primary);font-weight:600}
.reading blockquote{
  margin:24px 0;padding:18px 22px;
  border-left:3px solid var(--c-primary);
  background:rgba(47,216,192,.08);
  border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--tx-1);
}
.reading blockquote p:last-child{margin-bottom:0}
.reading img{border-radius:var(--r-img);border:1px solid var(--border-soft);margin:22px 0 8px}
.reading figure{margin:24px 0}
.reading figcaption{font-size:13px;color:var(--tx-3);text-align:center;margin-top:8px}
.reading .table-wrap{overflow-x:auto;margin:24px 0;border:1px solid var(--border-soft);border-radius:var(--r-img)}
.reading table{width:100%;border-collapse:collapse;min-width:520px}
.reading th,.reading td{
  padding:12px 16px;font-size:14.5px;text-align:left;
  border-bottom:1px solid var(--border-soft);
}
.reading thead th{background:var(--bg-section-alt);color:var(--tx-1);font-weight:600}
.reading tbody tr:hover{background:rgba(255,255,255,.02)}
.reading code{
  font-family:var(--mono);font-size:14px;
  background:var(--bg-section-alt);border:1px solid var(--border-soft);
  padding:2px 6px;border-radius:6px;color:var(--c-primary);
}

/* TOC */
.toc{
  position:sticky;top:104px;
  background:var(--bg-section);
  border:1px solid var(--border-soft);border-radius:var(--r-card);
  padding:20px 18px;
}
.toc-title{font-size:13px;letter-spacing:1px;color:var(--tx-3);margin-bottom:14px}
.toc a{
  display:block;position:relative;
  padding:8px 0 8px 14px;
  font-size:14px;color:var(--tx-2);
  border-left:2px solid transparent;
}
.toc a:hover{color:var(--c-primary)}
.toc a.is-current{color:var(--c-primary);border-left-color:var(--c-primary);font-weight:600}

/* empty state */
.empty-state{
  border:1px dashed var(--border-soft);border-radius:var(--r-card);
  padding:56px 24px;text-align:center;background:var(--bg-section);
}
.empty-state .ico{
  width:52px;height:52px;margin:0 auto 18px;border-radius:14px;
  border:1px solid var(--border-soft);display:grid;place-items:center;
  color:var(--c-primary);
}
.empty-state h2{font-size:20px;margin-bottom:10px}
.empty-state p{color:var(--tx-3);margin-bottom:22px}

/* ============ footer blocks in article ============ */
.article-foot{margin-top:56px;padding-top:36px;border-top:1px solid var(--border-soft)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.tag{
  padding:5px 14px;border-radius:var(--r-chip);
  border:1px solid var(--border-soft);color:var(--tx-2);font-size:13px;
  transition:all .18s var(--ease);
}
.tag:hover{border-color:var(--border-strong);color:var(--c-primary)}
.share-row{display:flex;align-items:center;gap:12px;margin-bottom:36px;flex-wrap:wrap}
.share-row .label{font-size:13px;color:var(--tx-3)}
.share-btn{
  width:40px;height:40px;border-radius:12px;
  border:1px solid var(--border-soft);background:var(--bg-section);
  display:grid;place-items:center;color:var(--tx-2);cursor:pointer;
  transition:all .18s var(--ease);
}
.share-btn:hover{border-color:var(--border-strong);color:var(--c-primary);transform:translateY(-2px)}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:48px}
.pager a{
  display:block;padding:18px 20px;border-radius:var(--r-card);
  border:1px solid var(--border-soft);background:var(--bg-section);
  transition:all .2s var(--ease);
}
.pager a:hover{border-color:var(--border-strong);transform:translateY(-2px)}
.pager .p-label{font-size:12.5px;color:var(--tx-3);margin-bottom:6px}
.pager .p-title{font-size:15px;color:var(--tx-1);font-weight:600;display:block;
  overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.pager a:hover .p-title{color:var(--c-primary)}
.pager .next{text-align:right}

.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:26px}
.section-head h2{font-size:clamp(20px,2.4vw,26px)}
.section-head .eyebrow{font-size:13px;color:var(--c-primary);letter-spacing:1px;margin-bottom:8px}

.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.rec-card{
  display:flex;flex-direction:column;
  background:var(--bg-section);border:1px solid var(--border-soft);
  border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-card);
  transition:all .2s var(--ease);
  position:relative;
}
.rec-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--c-primary);opacity:0;transition:opacity .2s var(--ease);
}
.rec-card:hover{transform:translateY(-2px);border-color:var(--border-strong)}
.rec-card:hover::before{opacity:1}
.rec-card .thumb{aspect-ratio:16/9;overflow:hidden}
.rec-card .thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .32s var(--ease)}
.rec-card:hover .thumb img{transform:scale(1.03)}
.rec-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rec-body h3{
  font-size:16px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rec-card:hover .rec-body h3{color:var(--c-primary)}
.rec-body p{
  font-size:13.5px;color:var(--tx-3);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rec-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:12px;font-size:12.5px;color:var(--tx-3)}
.back-row{margin-top:44px;text-align:center}

/* ============ CTA band ============ */
.cta-band{
  background:var(--bg-section-alt);
  border-top:1px solid var(--border-soft);
  border-bottom:1px solid var(--border-soft);
  padding:64px 0;
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(20px,2.6vw,28px);margin-bottom:8px}
.cta-inner p{margin:0;color:var(--tx-2);font-size:15px;max-width:620px}

/* ============ footer ============ */
.site-footer{background:#060C14;border-top:1px solid var(--border-soft);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:48px}
.footer-brand p{font-size:14px;color:var(--tx-3);margin:16px 0 18px;max-width:320px}
.footer-social{display:flex;gap:10px}
.footer-social span{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--border-soft);
  display:grid;place-items:center;color:var(--tx-3);font-size:12px;cursor:pointer;
  transition:all .18s var(--ease);
}
.footer-social span:hover{border-color:var(--border-strong);color:var(--c-primary)}
.footer-col h4{font-size:14px;color:var(--tx-1);margin-bottom:16px;letter-spacing:.5px}
.footer-col a,.footer-col li{display:block;font-size:14px;color:var(--tx-3);margin-bottom:11px;transition:color .18s var(--ease)}
.footer-col a:hover{color:var(--c-primary)}
.footer-bottom{
  border-top:1px solid var(--border-soft);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--tx-3);
}

/* ============ responsive ============ */
@media (max-width:1279px){
  .article-grid{grid-template-columns:minmax(0,1fr);gap:0}
  .toc{display:none}
  .reading{max-width:100%}
}
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .article-main{padding:56px 0 72px}
}
@media (max-width:1023px){
  .nav-wrap,.header-cta{display:none}
  .nav-toggle{display:block;margin-left:auto}
  .header-inner{gap:16px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .article-hero{padding:32px 0 28px}
  .reading p,.reading li{font-size:15.5px}
  .pager{grid-template-columns:1fr}
  .pager .next{text-align:left}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-band{padding:48px 0}
}
@media (max-width:640px){
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .rec-grid{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start}
  .article-main{padding:44px 0 56px}
  .site-footer{padding-top:48px}
}

/* roulang page: category1 */
:root{
  --bg-base:#070E18;
  --bg-section:#0B1524;
  --bg-section-alt:#0E1A2B;
  --glass-bg:rgba(255,255,255,.05);
  --glass-blur:14px;
  --c-primary:#2FD8C0;
  --c-primary-deep:#0E8F84;
  --c-accent:#FFB86B;
  --border-soft:rgba(255,255,255,.08);
  --border-strong:rgba(47,216,192,.45);
  --tx-1:#E8F0F7;
  --tx-2:#9FB2C6;
  --tx-3:#6E8199;
  --r-card:16px;
  --r-btn:10px;
  --r-chip:999px;
  --r-img:12px;
  --sh-card:0 1px 0 rgba(255,255,255,.06) inset,0 20px 40px -24px rgba(0,0,0,.7);
  --sh-glow:0 0 0 1px rgba(47,216,192,.5),0 12px 32px -12px rgba(47,216,192,.55);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--tx-2);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color 180ms var(--ease)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--tx-1);font-weight:600;line-height:1.35}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.mono{font-family:"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:110px 0;position:relative}
.section--alt{background:var(--bg-section)}
.section--alt2{background:var(--bg-section-alt)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-chip);
  border:1px solid var(--border-soft);background:rgba(47,216,192,.08);
  color:var(--c-primary);font-size:13px;letter-spacing:.04em;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-primary)}
.section-head{max-width:760px;margin-bottom:52px}
.section-head h2{font-size:clamp(22px,3vw,32px);margin-bottom:14px}
.section-head p{color:var(--tx-2)}
.grid{display:grid;gap:24px}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,14,24,.72);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background 240ms var(--ease),border-color 240ms var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,14,24,.9);
  border-bottom-color:var(--border-soft);
}
.nav-wrap{display:flex;align-items:center;gap:32px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:30px;height:30px;border-radius:9px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-deep));
  display:flex;align-items:center;justify-content:center;
  color:#04121a;font-weight:700;font-size:15px;
  box-shadow:0 8px 20px -10px rgba(47,216,192,.9);
}
.brand-text{color:var(--tx-1);font-size:18px;font-weight:600;letter-spacing:.01em;white-space:nowrap}
.brand-text:hover{color:var(--c-primary)}
.nav-chips{
  display:flex;align-items:center;gap:10px;
  flex:1;min-width:0;
  overflow-x:auto;scrollbar-width:none;
  padding:6px 2px;
  -webkit-overflow-scrolling:touch;
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;
  padding:8px 16px;border-radius:var(--r-chip);
  border:1px solid var(--border-soft);
  color:var(--tx-2);font-size:14px;line-height:1.4;
  white-space:nowrap;
  transition:all 180ms var(--ease);
}
.chip:hover{transform:translateY(-1px);border-color:var(--border-strong);color:var(--tx-1)}
.chip.is-active{
  border-color:var(--border-strong);
  background:rgba(47,216,192,.12);
  color:var(--tx-1);
  box-shadow:0 0 0 1px rgba(47,216,192,.18);
}
.nav-cta{flex-shrink:0}
.nav-toggle{
  display:none;flex-shrink:0;
  width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--border-soft);background:transparent;
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--tx-1);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--tx-1);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{
  display:none;position:fixed;inset:72px 0 0 0;z-index:70;
  background:rgba(7,14,24,.98);
  border-top:1px solid var(--border-soft);
  padding:28px 24px 40px;
  overflow-y:auto;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer .chip{display:block;padding:16px 18px;font-size:16px;margin-bottom:14px;border-radius:var(--r-card)}
.mobile-drawer .btn{width:100%;justify-content:center;margin-top:16px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 24px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:all 180ms var(--ease);
}
.btn:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.btn-primary{
  background:linear-gradient(135deg,var(--c-primary),#7BEBDA);
  color:#04161b;box-shadow:var(--sh-glow);
}
.btn-primary:hover{transform:scale(1.02);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(47,216,192,.6),0 16px 40px -12px rgba(47,216,192,.7)}
.btn-primary:active{transform:scale(.99)}
.btn-ghost{
  background:transparent;border-color:var(--border-strong);color:var(--c-primary);
}
.btn-ghost:hover{background:rgba(47,216,192,.08);color:var(--tx-1)}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-weight:600;font-size:15px;background:none;border:0;padding:0;cursor:pointer;
}
.btn-link .arw{transition:transform 180ms var(--ease)}
.btn-link:hover .arw{transform:translateX(4px)}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  padding:96px 0 104px;
  background-image:linear-gradient(180deg,rgba(7,14,24,.82),rgba(7,14,24,.94)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:24px 24px;
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;width:480px;height:480px;left:-160px;top:-180px;
  background:radial-gradient(circle,rgba(47,216,192,.10),transparent 70%);
  pointer-events:none;
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;
}
.hero h1{
  font-size:clamp(30px,4.4vw,50px);line-height:1.25;margin:22px 0 20px;
}
.hero h1 .hl{color:var(--c-primary)}
.hero-sub{font-size:17px;line-height:1.9;max-width:560px;color:var(--tx-2)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-note{display:flex;flex-wrap:wrap;gap:28px;margin-top:34px}
.hero-note div{font-size:13px;color:var(--tx-3)}
.hero-note b{display:block;font-size:22px;color:var(--tx-1);font-weight:600}

.metric-stack{display:grid;gap:16px}
.metric-card{
  background:var(--glass-bg);
  backdrop-filter:blur(var(--glass-blur));
  border:1px solid var(--border-soft);
  border-radius:var(--r-card);
  padding:22px 24px;
  box-shadow:var(--sh-card);
}
.metric-card .label{font-size:13px;color:var(--tx-3)}
.metric-card .value{
  font-size:32px;font-weight:600;color:var(--c-primary);
  text-shadow:0 0 24px rgba(47,216,192,.35);
  line-height:1.3;letter-spacing:-.01em;
}
.metric-card .value span{font-size:15px;color:var(--tx-2);margin-left:6px;text-shadow:none}
.metric-card .hint{font-size:12px;color:var(--tx-3);margin-top:4px}

/* 图文交替块 */
.flow-block{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:56px 0;
}
.flow-block + .flow-block{border-top:1px solid var(--border-soft)}
.flow-block.reverse .flow-media{order:2}
.flow-media img{
  width:100%;border-radius:var(--r-img);
  border:1px solid var(--border-soft);
  box-shadow:var(--sh-card);
}
.flow-body h2{font-size:clamp(20px,2.4vw,27px);margin-bottom:18px}
.flow-body p + p{margin-top:16px}
.point-list{margin-top:22px;display:grid;gap:12px}
.point-list li{position:relative;padding-left:20px;color:var(--tx-2);font-size:15px}
.point-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:7px;height:7px;border-radius:50%;background:var(--c-primary);
  box-shadow:0 0 0 3px rgba(47,216,192,.14);
}

/* 能力 chips */
.cap-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px}
.cap{
  padding:9px 18px;border-radius:var(--r-chip);
  border:1px solid var(--border-soft);background:var(--bg-section-alt);
  font-size:14px;color:var(--tx-2);
  transition:all 180ms var(--ease);
}
.cap:hover{border-color:var(--border-strong);color:var(--tx-1);transform:translateY(-1px)}

/* 场景卡 */
.scene-grid{grid-template-columns:repeat(3,1fr)}
.scene-card{
  background:var(--bg-section-alt);
  border:1px solid var(--border-soft);
  border-radius:var(--r-card);
  padding:28px 26px;
  box-shadow:var(--sh-card);
  transition:all 220ms var(--ease);
}
.scene-card:hover{transform:translateY(-2px);border-color:var(--border-strong)}
.scene-card h3{font-size:18px;margin:16px 0 10px}
.scene-card p{font-size:15px}
.scene-icon{
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--border-strong);
  display:flex;align-items:center;justify-content:center;
  color:var(--c-primary);
}
.badge{
  display:inline-block;padding:4px 12px;border-radius:var(--r-chip);
  font-size:12px;line-height:1.6;
  border:1px solid var(--border-strong);color:var(--c-primary);
  background:rgba(47,216,192,.08);
}
.badge-accent{border-color:rgba(255,184,107,.5);color:var(--c-accent);background:rgba(255,184,107,.1)}

/* 效率数据条 */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:44px}
.stat-row .item{
  border-left:2px solid var(--c-primary);
  padding-left:18px;
}
.stat-row .item b{display:block;font-size:26px;color:var(--tx-1);font-weight:600}
.stat-row .item span{font-size:13px;color:var(--tx-3)}

/* FAQ */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{
  background:var(--bg-section-alt);
  border:1px solid var(--border-soft);
  border-radius:var(--r-card);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color 220ms var(--ease);
}
.faq-item.is-open{border-color:var(--border-strong)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:none;border:0;cursor:pointer;
  text-align:left;font-size:16.5px;font-weight:600;color:var(--tx-1);
}
.faq-q:focus-visible{outline:2px solid var(--c-primary);outline-offset:-4px}
.faq-q .plus{
  flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform 320ms var(--ease);
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:2px;
}
.faq-q .plus::before{left:0;top:10px;width:22px;height:2px}
.faq-q .plus::after{left:10px;top:0;width:2px;height:22px;transition:opacity 320ms var(--ease)}
.faq-item.is-open .plus::after{opacity:0}
.faq-item.is-open .plus{transform:rotate(180deg)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height 320ms var(--ease);
  border-left:3px solid transparent;
}
.faq-item.is-open .faq-a{border-left-color:var(--c-primary)}
.faq-a p{padding:0 24px 22px 24px;font-size:15px;line-height:1.9;color:var(--tx-2)}

/* CTA */
.cta-band{
  border:1px solid var(--border-soft);
  border-radius:20px;
  background:linear-gradient(135deg,rgba(47,216,192,.10),rgba(255,255,255,.03));
  backdrop-filter:blur(var(--glass-blur));
  padding:44px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-card);
}
.cta-band h2{font-size:clamp(20px,2.4vw,28px);margin-bottom:10px}
.cta-band p{font-size:15px;max-width:560px}
.cta-band .actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0}

/* 页脚 */
.site-footer{background:#060C14;border-top:1px solid var(--border-soft);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-grid h4{font-size:15px;margin-bottom:18px;color:var(--tx-1)}
.footer-grid p{font-size:14px;color:var(--tx-3)}
.footer-grid li{margin-bottom:11px}
.footer-grid li a{font-size:14px;color:var(--tx-2)}
.footer-grid li a:hover{color:var(--c-primary)}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--border-soft);
  padding:22px 0;font-size:13px;color:var(--tx-3);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
}

/* 响应式 */
@media (max-width:1023px){
  .section{padding:76px 0}
  .hero{padding:72px 0 80px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .metric-stack{grid-template-columns:repeat(3,1fr)}
  .flow-block{grid-template-columns:1fr;gap:32px;padding:44px 0}
  .flow-block.reverse .flow-media{order:0}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .stat-row{grid-template-columns:repeat(2,1fr);gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 30px}
}
@media (max-width:767px){
  .nav-chips,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .nav-wrap{gap:16px;justify-content:space-between}
}
@media (max-width:639px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .hero{padding:56px 0 64px}
  .metric-stack{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .stat-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:30px 22px}
  .faq-q{padding:18px 18px;font-size:15.5px}
  .faq-a p{padding:0 18px 20px 18px}
  .hero-note{gap:20px}
}

/* roulang page: category2 */
:root{
  --bg-base:#070E18;
  --bg-section:#0B1524;
  --bg-section-alt:#0E1A2B;
  --bg-elevated:rgba(255,255,255,.05);
  --c-primary:#2FD8C0;
  --c-primary-deep:#0E8F84;
  --c-accent:#FFB86B;
  --glass-bg:rgba(255,255,255,.05);
  --glass-blur:14px;
  --border-soft:rgba(255,255,255,.08);
  --border-strong:rgba(47,216,192,.45);
  --tx-1:#E8F0F7;
  --tx-2:#9FB2C6;
  --tx-3:#6E8199;
  --ok:#3DDC97;
  --warn:#FFB86B;
  --err:#FF6B6B;
  --r-card:16px;
  --r-btn:10px;
  --r-chip:999px;
  --r-img:12px;
  --sh-card:0 1px 0 rgba(255,255,255,.06) inset, 0 20px 40px -24px rgba(0,0,0,.7);
  --sh-glow:0 0 0 1px rgba(47,216,192,.5), 0 12px 32px -12px rgba(47,216,192,.55);
  --ease:cubic-bezier(.22,.61,.36,1);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--tx-2);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;color:var(--tx-1);line-height:1.35;font-weight:700}
p{margin:0 0 18px}
ul,ol{margin:0 0 18px;padding:0;list-style:none}
img{display:block;max-width:100%;height:auto;border-radius:var(--r-img);border:1px solid var(--border-soft)}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease),transform .18s var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,14,24,.78);
  border-bottom:1px solid transparent;
  transition:background .32s var(--ease),border-color .32s var(--ease),backdrop-filter .32s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(9,16,28,.88);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--border-soft);
}
.header-inner{display:flex;align-items:center;gap:24px;min-height:var(--header-h)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:14px;height:14px;border-radius:4px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-deep));
  box-shadow:0 0 16px rgba(47,216,192,.55);
}
.brand-text{font-size:18px;font-weight:700;color:var(--tx-1);letter-spacing:.3px;white-space:nowrap}
.nav-chips{
  display:flex;align-items:center;gap:10px;flex:1 1 auto;
  overflow-x:auto;padding:6px 2px;
  scrollbar-width:none;-ms-overflow-style:none;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 14px,#000 calc(100% - 14px),transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 14px,#000 calc(100% - 14px),transparent 100%);
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;padding:8px 16px;border-radius:var(--r-chip);
  border:1px solid var(--border-soft);color:var(--tx-2);
  font-size:14px;white-space:nowrap;
  transition:all .18s var(--ease);
}
.chip:hover{transform:translateY(-1px);border-color:var(--border-strong);color:var(--tx-1)}
.chip.is-active{
  background:rgba(47,216,192,.12);
  border-color:var(--border-strong);
  color:var(--tx-1);
  box-shadow:0 0 0 1px rgba(47,216,192,.16);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--border-soft);align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--tx-1);transition:transform .22s var(--ease),opacity .22s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-nav{
  display:none;flex-direction:column;gap:14px;
  padding:16px 24px 28px;
  background:rgba(7,14,24,.98);
  border-bottom:1px solid var(--border-soft);
}
.mobile-nav.is-open{display:flex}
.mobile-link{
  padding:14px 4px;border-bottom:1px solid var(--border-soft);
  color:var(--tx-2);font-size:16px;
}
.mobile-link.is-active{color:var(--c-primary)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:all .18s var(--ease);min-height:44px;
}
.btn-primary{
  background:linear-gradient(135deg,#42E6CE,#15AE99);
  color:#04201C;
  box-shadow:var(--sh-glow);
}
.btn-primary:hover{filter:brightness(1.07);transform:scale(1.02)}
.btn-primary:active{transform:scale(.99)}
.btn-outline{border-color:var(--border-strong);color:var(--tx-1);background:transparent}
.btn-outline:hover{background:rgba(47,216,192,.08);transform:translateY(-1px)}
.btn-ghost{
  padding:8px 0;color:var(--c-primary);font-weight:600;background:transparent;
}
.btn-ghost .arrow{display:inline-block;transition:transform .18s var(--ease)}
.btn-ghost:hover .arrow{transform:translateX(4px)}
.btn-sm{padding:9px 18px;font-size:14px;min-height:40px}
.btn[disabled]{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none}

/* ---------- hero ---------- */
.page-hero{
  position:relative;padding:56px 0 52px;
  background:var(--bg-section);
  border-bottom:1px solid var(--border-soft);
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:24px 24px;
  pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;top:-190px;right:-140px;
  width:480px;height:480px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,216,192,.10),transparent 70%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--tx-3);margin-bottom:20px;flex-wrap:wrap}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:var(--tx-3);opacity:.6}
.breadcrumb .current{color:var(--tx-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-chip);
  border:1px solid var(--border-strong);
  background:rgba(47,216,192,.08);
  color:var(--c-primary);font-size:13px;font-weight:600;
  margin-bottom:20px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 10px rgba(47,216,192,.8)}
h1.page-title{
  font-size:clamp(28px,4.2vw,46px);
  line-height:1.28;
  letter-spacing:-.2px;
  max-width:920px;
  margin-bottom:18px;
}
.hero-sub{max-width:760px;font-size:16px;color:var(--tx-2);margin-bottom:28px}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px}
.meta-pill{
  display:inline-flex;align-items:baseline;gap:8px;
  padding:10px 18px;border-radius:var(--r-chip);
  background:var(--bg-section-alt);
  border:1px solid var(--border-soft);
  font-size:13px;color:var(--tx-3);
}
.meta-pill b{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:17px;color:var(--c-primary);font-weight:700}

/* ---------- anchor bar ---------- */
.anchor-bar{
  position:sticky;top:var(--header-h);z-index:70;
  background:rgba(11,21,36,.92);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border-soft);
}
.anchor-inner{
  display:flex;gap:10px;overflow-x:auto;padding:12px 24px;
  max-width:1200px;margin:0 auto;
  scrollbar-width:none;-ms-overflow-style:none;
}
.anchor-inner::-webkit-scrollbar{display:none}
.anchor-chip{
  flex:0 0 auto;padding:7px 15px;border-radius:var(--r-chip);
  border:1px solid var(--border-soft);color:var(--tx-3);
  font-size:13.5px;white-space:nowrap;
}
.anchor-chip:hover{color:var(--tx-1);border-color:var(--border-strong)}
.anchor-chip.is-current{
  color:var(--c-primary);
  border-color:var(--border-strong);
  background:rgba(47,216,192,.10);
}

/* ---------- sections ---------- */
.section{padding:72px 0}
.section-alt{background:var(--bg-section);border-top:1px solid var(--border-soft);border-bottom:1px solid var(--border-soft)}
.section-head{max-width:820px;margin-bottom:40px}
.section-head h2{font-size:clamp(22px,3vw,32px);margin-bottom:14px}
.section-head p{color:var(--tx-2);margin-bottom:0}

/* ---------- split layout ---------- */
.split{display:grid;grid-template-columns:280px minmax(0,1fr);gap:48px;align-items:start}
.side-sticky{position:sticky;top:calc(var(--header-h) + 74px)}
.param-card{
  background:var(--bg-section);
  border:1px solid var(--border-soft);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  padding:22px;
}
.param-card h2{
  font-size:15px;letter-spacing:.4px;color:var(--tx-1);
  padding-bottom:14px;margin-bottom:6px;border-bottom:1px solid var(--border-soft);
}
.param-list{display:block;margin:0 0 18px}
.param-list .row{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  padding:11px 0;border-bottom:1px dashed var(--border-soft);
}
.param-list .row:last-child{border-bottom:0}
.param-list dt{font-size:13px;color:var(--tx-3)}
.param-list dd{
  margin:0;font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:13.5px;color:var(--tx-1);text-align:right;
}
.param-card img{margin-bottom:16px}
.param-note{font-size:12.5px;color:var(--tx-3);margin:0}

/* ---------- content blocks ---------- */
.content-block{margin-bottom:56px;scroll-margin-top:calc(var(--header-h) + 76px)}
.content-block:last-child{margin-bottom:0}
.block-title{
  position:relative;padding-left:16px;
  font-size:clamp(21px,2.6vw,28px);
  margin-bottom:18px;
}
.block-title::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--c-primary),var(--c-primary-deep));
}
.content-block p{font-size:15.5px;color:var(--tx-2)}
.dot-list{margin:22px 0 0}
.dot-list li{
  position:relative;padding-left:24px;margin-bottom:12px;
  font-size:15px;color:var(--tx-2);
}
.dot-list li::before{
  content:"";position:absolute;left:4px;top:.68em;width:7px;height:7px;border-radius:50%;
  background:var(--c-primary);box-shadow:0 0 10px rgba(47,216,192,.65);
}
.dot-list li b{color:var(--tx-1);font-weight:600}

.step-list{counter-reset:step;display:grid;gap:14px;margin:24px 0 0}
.step-list li{
  counter-increment:step;position:relative;
  padding:18px 22px 18px 68px;
  background:var(--bg-section);
  border:1px solid var(--border-soft);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  font-size:15px;color:var(--tx-2);
  transition:border-color .18s var(--ease),transform .18s var(--ease);
}
.step-list li::before{
  content:counter(step,decimal-leading-zero);
  position:absolute;left:20px;top:18px;
  width:32px;height:32px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:12.5px;color:#04201C;font-weight:700;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-deep));
  box-shadow:0 0 0 4px rgba(47,216,192,.10);
}
.step-list li strong{display:block;color:var(--tx-1);font-size:16px;margin-bottom:4px}
.step-list li:hover{border-color:var(--border-strong);transform:translateY(-2px)}

/* ---------- scenario cards ---------- */
.scene-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:24px;align-items:stretch}
.scene-card{
  display:flex;flex-direction:column;
  background:var(--bg-section-alt);
  border:1px solid var(--border-soft);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  overflow:hidden;
  transition:transform .18s var(--ease),border-color .18s var(--ease);
}
.scene-card:hover{transform:translateY(-2px);border-color:var(--border-strong)}
.scene-card figure{margin:0;overflow:hidden}
.scene-card img{border-radius:0;border:0;width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .32s var(--ease)}
.scene-card:hover img{transform:scale(1.03)}
.scene-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.scene-body h3{font-size:18px}
.scene-body p{font-size:14.5px;color:var(--tx-2);margin:0}
.badge{
  display:inline-flex;align-items:center;align-self:flex-start;
  padding:4px 12px;border-radius:var(--r-chip);
  font-size:12.5px;font-weight:600;
  border:1px solid var(--border-strong);
  color:var(--c-primary);background:rgba(47,216,192,.07);
}
.badge-warn{border-color:rgba(255,184,107,.5);color:var(--c-accent);background:rgba(255,184,107,.09)}
.scene-link{margin-top:auto;font-size:14px;font-weight:600;color:var(--c-primary)}
.scene-link .arrow{display:inline-block;transition:transform .18s var(--ease)}
.scene-link:hover .arrow{transform:translateX(4px)}

/* ---------- meters ---------- */
.meter-panel{
  margin-top:40px;
  background:var(--bg-section-alt);
  border:1px solid var(--border-soft);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  padding:28px;
}
.meter-panel h3{font-size:17px;margin-bottom:6px}
.meter-panel .hint{font-size:13px;color:var(--tx-3);margin:0 0 22px}
.meter-row{display:grid;gap:20px}
.meter-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:8px}
.meter-head span{font-size:14px;color:var(--tx-2)}
.meter-head b{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:17px;color:var(--c-primary)}
.meter-bar{height:6px;border-radius:999px;background:rgba(255,255,255,.06);overflow:hidden}
.meter-fill{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--c-primary-deep),var(--c-primary))}
.meter-fill.warn{background:linear-gradient(90deg,#B9814A,var(--c-accent))}

/* ---------- faq ---------- */
.faq-list{max-width:820px;margin:0 auto;display:grid;gap:12px}
.faq-item{
  background:var(--bg-section);
  border:1px solid var(--border-soft);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:border-color .18s var(--ease);
}
.faq-item.is-open{border-color:var(--border-strong)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;text-align:left;
  color:var(--tx-1);font-size:16.5px;font-weight:600;
  transition:box-shadow .32s var(--ease);
}
.faq-item.is-open .faq-q{box-shadow:inset 3px 0 0 var(--c-primary)}
.faq-icon{
  flex:0 0 auto;position:relative;width:18px;height:18px;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);
  transform:translate(-50%,-50%);border-radius:2px;
  transition:transform .32s var(--ease),opacity .32s var(--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 .32s var(--ease)}
.faq-a p{margin:0;padding:0 22px 20px;font-size:15px;line-height:1.9;color:var(--tx-2)}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--bg-section-alt);
  border-top:1px solid var(--border-soft);
  border-bottom:1px solid var(--border-soft);
  padding:56px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-text h2{font-size:clamp(20px,2.6vw,28px);margin-bottom:10px}
.cta-text p{margin:0;font-size:15px;color:var(--tx-2);max-width:640px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:#060C14;border-top:1px solid var(--border-soft);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.25fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-desc{font-size:14px;color:var(--tx-2);margin:0 0 18px;max-width:320px}
.footer-quote{
  font-size:13.5px;color:var(--tx-3);
  padding:12px 16px;border-left:2px solid var(--border-strong);
  background:rgba(47,216,192,.04);border-radius:0 var(--r-btn) var(--r-btn) 0;
}
.footer-col h3{font-size:14px;color:var(--tx-1);letter-spacing:.4px;margin-bottom:18px}
.footer-col ul{display:grid;gap:11px;margin:0}
.footer-col a,.footer-col li{font-size:14px;color:var(--tx-2)}
.footer-col a:hover{color:var(--c-primary)}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--border-soft);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:var(--tx-3);
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .split{gap:36px}
}
@media (max-width:1023px){
  :root{--header-h:66px}
  .nav-chips,.header-actions .btn{display:none}
  .nav-toggle{display:flex}
  .split{grid-template-columns:1fr;gap:32px}
  .side-sticky{position:static}
  .scene-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .section{padding:64px 0}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .anchor-inner{padding:10px 16px}
  .page-hero{padding:44px 0 40px}
  .hero-sub{font-size:15px}
  .scene-grid{grid-template-columns:1fr}
  .section{padding:52px 0}
  .content-block{margin-bottom:44px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .btn{min-height:46px}
}
@media (max-width:520px){
  h1.page-title{font-size:26px}
  .meta-pill{width:100%}
  .step-list li{padding:16px 18px 16px 62px}
  .step-list li::before{left:16px;top:16px}
  .param-card{padding:18px}
}

/* roulang page: category3 */
:root{
  --bg-base:#070E18;
  --bg-section:#0B1524;
  --bg-section-alt:#0E1A2B;
  --bg-elevated:rgba(255,255,255,0.05);
  --c-primary:#2FD8C0;
  --c-primary-deep:#0E8F84;
  --c-accent:#FFB86B;
  --glass-bg:rgba(255,255,255,0.05);
  --glass-blur:14px;
  --border-soft:rgba(255,255,255,0.08);
  --border-strong:rgba(47,216,192,0.45);
  --tx-1:#E8F0F7;
  --tx-2:#9FB2C6;
  --tx-3:#6E8199;
  --ok:#3DDC97;
  --warn:#FFB86B;
  --err:#FF6B6B;
  --r-card:16px;
  --r-btn:10px;
  --r-chip:999px;
  --r-img:12px;
  --sh-card:0 1px 0 rgba(255,255,255,.06) inset, 0 20px 40px -24px rgba(0,0,0,.7);
  --sh-glow:0 0 0 1px rgba(47,216,192,.5), 0 12px 32px -12px rgba(47,216,192,.55);
  --ease:cubic-bezier(.22,.61,.36,1);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--tx-2);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--c-primary)}
h1,h2,h3,h4{color:var(--tx-1);margin:0;font-weight:600;letter-spacing:.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
::selection{background:rgba(47,216,192,.28);color:#04201c}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,14,24,.72);
  backdrop-filter:blur(0px);
  border-bottom:1px solid transparent;
  transition:background .28s var(--ease),border-color .28s var(--ease),backdrop-filter .28s var(--ease);
}
.site-header.is-stuck{
  background:rgba(7,14,24,.9);
  backdrop-filter:blur(var(--glass-blur));
  border-bottom-color:var(--border-soft);
}
.header-inner{display:flex;align-items:center;gap:28px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:22px;height:22px;border-radius:7px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-deep));
  box-shadow:0 0 0 1px rgba(47,216,192,.45),0 8px 20px -10px rgba(47,216,192,.8);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:6px;border-radius:2px;background:rgba(7,14,24,.85);
}
.brand-text{color:var(--tx-1);font-size:17px;font-weight:700;letter-spacing:.4px;white-space:nowrap}
.brand-text em{font-style:normal;color:var(--c-primary)}

.nav-chips{
  display:flex;align-items:center;gap:10px;
  margin-left:auto;margin-right:auto;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  padding:8px 4px;
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border:1px solid var(--border-soft);border-radius:var(--r-chip);
  color:var(--tx-2);font-size:14px;white-space:nowrap;
  transition:transform .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease),background .18s var(--ease);
}
.chip:hover{transform:translateY(-1px);border-color:var(--border-strong);color:var(--tx-1)}
.chip.is-active{
  background:rgba(47,216,192,.12);
  border-color:var(--c-primary);
  color:var(--tx-1);
  box-shadow:0 0 0 1px rgba(47,216,192,.18),0 10px 24px -16px rgba(47,216,192,.9);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--border-soft);background:transparent;color:var(--tx-1);
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px}
.btn-primary{
  background:linear-gradient(135deg,#4ee6d0,var(--c-primary));
  color:#04201c;box-shadow:var(--sh-glow);
}
.btn-primary:hover{color:#04201c;transform:translateY(-1px) scale(1.02);box-shadow:0 0 0 1px rgba(47,216,192,.6),0 18px 40px -14px rgba(47,216,192,.7)}
.btn-primary:active{transform:scale(.99)}
.btn-ghost{
  background:transparent;border-color:var(--border-strong);color:var(--tx-1);
}
.btn-ghost:hover{background:rgba(47,216,192,.08);color:var(--tx-1);transform:translateY(-1px)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);
  font-size:14px;font-weight:600;background:none;border:none;padding:0;
}
.btn-text .arrow{transition:transform .18s var(--ease)}
.btn-text:hover .arrow{transform:translateX(4px)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:76px 0 64px;
  background:var(--bg-section);
  border-bottom:1px solid var(--border-soft);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:24px 24px;
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(480px 480px at 8% 0%,rgba(47,216,192,.10),transparent 70%),
    radial-gradient(480px 480px at 92% 100%,rgba(47,216,192,.08),transparent 70%);
}
.hero-inner{position:relative;z-index:2;max-width:860px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-chip);
  border:1px solid var(--border-strong);background:rgba(47,216,192,.08);
  color:var(--c-primary);font-size:13px;letter-spacing:.4px;
}
.hero h1{
  font-size:clamp(30px,5vw,54px);line-height:1.25;margin:22px 0 18px;
}
.hero h1 .hl{
  background:linear-gradient(180deg,transparent 62%,rgba(47,216,192,.22) 62%);
  padding:0 2px;
}
.hero-lead{font-size:16.5px;line-height:1.9;color:var(--tx-2);max-width:760px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}

/* ---------- Status band ---------- */
.status-band{
  border-bottom:1px solid var(--border-soft);
  background:var(--bg-section-alt);
}
.status-inner{display:flex;flex-wrap:wrap;gap:16px 34px;padding:16px 0}
.status-item{display:inline-flex;align-items:center;gap:9px;font-size:13.5px;color:var(--tx-3)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(61,220,151,.14)}
.dot.accent{background:var(--c-accent);box-shadow:0 0 0 4px rgba(255,184,107,.14)}
.dot.pulse{animation:pulse 2.4s var(--ease) infinite}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 0 rgba(61,220,151,.35)}
  50%{box-shadow:0 0 0 7px rgba(61,220,151,0)}
}
.status-item b{color:var(--tx-1);font-weight:600}

/* ---------- Sections ---------- */
.section{padding:100px 0;background:var(--bg-base)}
.section.alt{background:var(--bg-section)}
.section-head{max-width:780px;margin-bottom:48px}
.section-head h2{font-size:clamp(22px,3vw,32px);line-height:1.35;margin-bottom:14px}
.section-head p{color:var(--tx-2)}
.tagline{
  display:inline-block;color:var(--c-primary);font-size:13px;letter-spacing:1.4px;
  margin-bottom:12px;text-transform:uppercase;
}

/* ---------- Timeline ---------- */
.timeline{position:relative;padding:6px 0}
.timeline::before{
  content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;
  transform:translateX(-.5px);
  background:linear-gradient(180deg,transparent,rgba(255,255,255,.16) 6%,rgba(255,255,255,.16) 94%,transparent);
}
.tl-item{position:relative;display:grid;grid-template-columns:1fr 60px 1fr;align-items:center;margin-bottom:30px}
.tl-item:last-child{margin-bottom:0}
.tl-node{
  grid-column:2;justify-self:center;
  width:14px;height:14px;border-radius:50%;
  background:var(--bg-base);
  border:2px solid var(--c-primary);
  box-shadow:0 0 0 5px rgba(47,216,192,.10),0 0 18px rgba(47,216,192,.55);
  z-index:2;
}
.tl-card{
  grid-column:1;
  background:var(--bg-section-alt);
  border:1px solid var(--border-soft);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  padding:24px 26px;
  transition:transform .18s var(--ease),border-color .18s var(--ease);
}
.tl-item:nth-child(even) .tl-card{grid-column:3}
.tl-card:hover{transform:translateY(-2px);border-color:var(--border-strong)}
.tl-card h3{font-size:19px;margin:14px 0 10px}
.tl-card p{font-size:15px;color:var(--tx-2)}
.tl-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  color:var(--c-primary);font-size:14px;font-weight:600;
}
.tl-link .arrow{transition:transform .18s var(--ease)}
.tl-card:hover .tl-link .arrow{transform:translateX(4px)}

.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-chip);font-size:12.5px;letter-spacing:.3px;
  border:1px solid var(--border-strong);color:var(--c-primary);
  background:rgba(47,216,192,.07);
}
.badge-accent{
  border-color:rgba(255,184,107,.5);color:var(--c-accent);
  background:rgba(255,184,107,.09);
}

/* ---------- Access grid ---------- */
.access-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.access-card{
  background:var(--bg-section);
  border:1px solid var(--border-soft);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  padding:26px 24px;
  transition:transform .18s var(--ease),border-color .18s var(--ease);
}
.access-card:hover{transform:translateY(-2px);border-color:var(--border-strong)}
.access-icon{
  width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--border-strong);color:var(--c-primary);
  background:rgba(47,216,192,.07);margin-bottom:16px;
}
.access-card h3{font-size:17px;margin-bottom:10px}
.access-card p{font-size:14.5px;color:var(--tx-2)}
.cap-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}
.cap{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border:1px solid var(--border-soft);border-radius:var(--r-chip);
  font-size:13.5px;color:var(--tx-2);
  transition:border-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.cap:hover{border-color:var(--c-primary);color:var(--tx-1);transform:translateY(-1px)}

/* ---------- Feature split ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.split-media{
  border-radius:var(--r-img);overflow:hidden;border:1px solid var(--border-soft);
  box-shadow:var(--sh-card);
}
.split-media img{width:100%;height:auto}
.split h2{font-size:clamp(22px,3vw,30px);margin-bottom:16px}
.split p + p{margin-top:14px}
.check-list{margin-top:22px;display:grid;gap:12px}
.check-list li{display:flex;gap:12px;font-size:15px;color:var(--tx-2)}
.check-list li::before{
  content:"";flex:0 0 auto;width:7px;height:7px;margin-top:9px;border-radius:50%;
  background:var(--c-primary);box-shadow:0 0 0 4px rgba(47,216,192,.12);
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{
  background:var(--bg-section-alt);
  border:1px solid var(--border-soft);
  border-radius:var(--r-card);
  margin-bottom:14px;overflow:hidden;
  transition:border-color .28s var(--ease);
}
.faq-item.is-open{border-color:var(--border-strong)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:none;text-align:left;
  padding:20px 24px;color:var(--tx-1);font-size:16.5px;font-weight:600;line-height:1.6;
}
.faq-q .sign{
  flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform .28s var(--ease);
}
.faq-q .sign::before,.faq-q .sign::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:2px;
}
.faq-q .sign::before{left:0;top:10px;width:22px;height:2px}
.faq-q .sign::after{left:10px;top:0;width:2px;height:22px}
.faq-item.is-open .faq-q .sign{transform:rotate(45deg)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .32s var(--ease);
}
.faq-a-inner{
  padding:0 24px 22px 24px;
  border-left:3px solid var(--c-primary);
  margin-left:24px;padding-left:18px;
  font-size:15px;line-height:1.9;color:var(--tx-2);
}

/* ---------- CTA bar ---------- */
.cta-bar{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,#0B1524 0%,#0E1A2B 62%,#123028 100%);
  border-top:1px solid var(--border-soft);
  border-bottom:1px solid var(--border-soft);
}
.cta-bar::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(420px 420px at 88% 20%,rgba(47,216,192,.14),transparent 70%);
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:44px 0;
}
.cta-inner h2{font-size:clamp(20px,2.4vw,26px);margin-bottom:8px}
.cta-inner p{font-size:15px;color:var(--tx-2);max-width:620px}

/* ---------- Footer ---------- */
.site-footer{background:#060C14;border-top:1px solid var(--border-soft);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-about{font-size:14px;color:var(--tx-3);line-height:1.9;max-width:320px}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social span{
  width:34px;height:34px;border-radius:10px;border:1px solid var(--border-soft);
  display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--tx-3);
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.footer-social span:hover{border-color:var(--border-strong);color:var(--c-primary)}
.footer-col h4{font-size:14px;color:var(--tx-1);margin-bottom:16px;letter-spacing:.6px}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14px;color:var(--tx-3)}
.footer-col a:hover{color:var(--c-primary)}
.footer-bottom{
  border-top:1px solid var(--border-soft);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--tx-3);
}

/* ---------- Mobile drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:80;
  background:rgba(7,14,24,.97);
  backdrop-filter:blur(var(--glass-blur));
  display:none;flex-direction:column;
  padding:26px 24px 34px;
}
.drawer.is-open{display:flex}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:34px}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--border-soft);
  background:transparent;color:var(--tx-1);font-size:20px;line-height:1;
}
.drawer-nav{display:grid;gap:16px}
.drawer-nav a{
  display:block;padding:16px 18px;border-radius:14px;
  border:1px solid var(--border-soft);color:var(--tx-1);font-size:16px;
}
.drawer-nav a.is-active{background:rgba(47,216,192,.12);border-color:var(--c-primary)}
.drawer-cta{margin-top:auto;padding-top:28px}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .nav-chips{display:none}
  .nav-toggle{display:flex}
  .header-actions .btn-primary{display:none}
  .access-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .section{padding:72px 0}
  .hero{padding:56px 0 48px}
  .timeline::before{left:9px;transform:none}
  .tl-item{grid-template-columns:1fr;padding-left:36px;margin-bottom:22px}
  .tl-node{position:absolute;left:2px;top:26px;grid-column:auto}
  .tl-card,.tl-item:nth-child(even) .tl-card{grid-column:1}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:38px 0}
  .cta-inner .btn{width:100%}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .access-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .section{padding:56px 0}
  .faq-q{font-size:15.5px;padding:18px 18px}
  .faq-a-inner{margin-left:16px;padding:0 16px 20px 14px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
}