/* roulang page: index */
:root{
  --bg-0:#060B12;--bg-1:#0B141D;
  --glass:rgba(255,255,255,.055);--glass-2:rgba(255,255,255,.09);
  --line:rgba(255,255,255,.10);--line-strong:rgba(255,255,255,.20);
  --primary:#12D3B6;--primary-dim:#0C8E7C;--accent:#FFB020;
  --text:#E8F1F5;--muted:#90A3B0;
  --r-card:16px;--r-img:18px;--r-btn:12px;--r-chip:999px;--r-input:10px;
  --sh-1:0 12px 32px -18px rgba(0,0,0,.7);
  --sh-2:0 20px 48px -20px rgba(0,0,0,.8);
  --glow:0 8px 30px -10px rgba(18,211,182,.65);
  --t:220ms cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;padding:0;background-color:var(--bg-0);color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.8;font-weight:400;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  background-image:
    radial-gradient(920px 620px at 6% -8%, rgba(18,211,182,.06), transparent 62%),
    radial-gradient(780px 520px at 96% 12%, rgba(255,176,32,.035), transparent 60%),
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size:auto,auto,32px 32px,32px 32px;
  background-attachment:fixed,fixed,fixed,fixed;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
input,textarea,select{font:inherit}
::selection{background:rgba(18,211,182,.35);color:#fff}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
.section{padding-top:88px;padding-bottom:88px}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--primary);text-transform:uppercase}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--primary);opacity:.7}
h1,h2,h3{font-weight:700;line-height:1.25;letter-spacing:-.01em}
h2{font-size:32px;color:var(--text)}
h3{font-size:20px;line-height:1.45}
.lead{color:var(--muted);font-size:16px;line-height:1.9}
.muted{color:var(--muted)}
.num{font-variant-numeric:tabular-nums;font-weight:700}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:44px}
.section-head p{max-width:620px;margin-top:14px;color:var(--muted);font-size:16px;line-height:1.85}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);transition:gap var(--t),color var(--t)}
.text-link:hover{gap:12px;color:#3ef0d3}

/* 公告条 */
.notice-bar{border-bottom:1px solid var(--line);background:rgba(18,211,182,.05)}
.notice-inner{min-height:38px;display:flex;align-items:center;gap:12px;font-size:13px;color:var(--primary);overflow:hidden}
.notice-dot{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(18,211,182,.16);flex:none}
.notice-inner p{flex:1;min-width:0;color:#bfe9e2;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.notice-link{color:var(--primary);font-weight:600;white-space:nowrap}
.notice-link:hover{color:#3ef0d3}

/* 头部导航 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(6,11,18,.78);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line);transition:background var(--t),box-shadow var(--t)}
.site-header.is-stuck{background:rgba(6,11,18,.94);box-shadow:0 12px 32px -24px rgba(0,0,0,.95)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:70px;position:relative}
.brand{display:flex;align-items:center;gap:12px;flex:none}
.brand svg{width:38px;height:38px;flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;font-weight:700;letter-spacing:.01em}
.brand-text span{font-size:11px;color:var(--muted);letter-spacing:.16em}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{position:relative;padding:8px 14px;border-radius:999px;font-size:15px;color:#c4d3dc;transition:color var(--t),background var(--t)}
.main-nav a:hover{color:#fff;background:var(--glass)}
.main-nav a.active{color:#fff}
.main-nav a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--primary)}
.nav-actions{display:flex;align-items:center;gap:14px;flex:none}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:var(--glass);align-items:center;justify-content:center}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* chip 分段导航 */
.chip-row{display:flex;gap:10px;padding-top:0;padding-bottom:14px;overflow-x:auto;scrollbar-width:none}
.chip-row::-webkit-scrollbar{display:none}
.chip{display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 16px;border-radius:var(--r-chip);border:1px solid var(--line);background:var(--glass);color:#c4d3dc;font-size:14px;white-space:nowrap;transition:all var(--t)}
.chip:hover{border-color:rgba(18,211,182,.4);color:#fff}
.chip.active{background:linear-gradient(180deg,#19E3C4,#0FB79E);border-color:transparent;color:#04201B;font-weight:700;box-shadow:0 8px 22px -12px rgba(18,211,182,.8)}
.chip .dot{width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.6}

/* 按钮 */
body .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;cursor:pointer;transition:all var(--t);white-space:nowrap}
body .btn-primary{background:linear-gradient(180deg,#19E3C4,#0FB79E);color:#04201B;box-shadow:var(--glow)}
body .btn-primary:hover{filter:brightness(1.08);box-shadow:0 14px 40px -10px rgba(18,211,182,.72);transform:translateY(-2px)}
body .btn-ghost{background:var(--glass);border-color:rgba(18,211,182,.45);color:var(--text);backdrop-filter:blur(14px)}
body .btn-ghost:hover{background:rgba(18,211,182,.08);border-color:rgba(18,211,182,.7)}
body .btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
body .btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
body .btn:active{transform:translateY(0)}

/* 玻璃卡片 */
.glass-card{background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--sh-1);transition:border-color var(--t),transform var(--t),box-shadow var(--t),background var(--t)}
.glass-card:hover{border-color:rgba(18,211,182,.35);transform:translateY(-4px);box-shadow:var(--sh-2),0 0 0 1px rgba(18,211,182,.08)}
.corner-mark{position:relative}
.corner-mark::before,.corner-mark::after{content:"";position:absolute;width:16px;height:16px;border:1px solid rgba(18,211,182,.55);pointer-events:none}
.corner-mark::before{top:10px;right:10px;border-left:none;border-bottom:none;border-radius:0 6px 0 0}
.corner-mark::after{bottom:10px;left:10px;border-right:none;border-top:none;border-radius:0 0 0 6px}

/* Hero */
.hero{position:relative;padding-top:72px;padding-bottom:92px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;align-items:center}
.hero h1{font-size:44px;line-height:1.15;margin-bottom:16px}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero .hero-sub{color:#b9cad6;font-size:17px;line-height:1.9;max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-notes{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 12px;border-radius:var(--r-chip);border:1px solid var(--line);background:rgba(255,255,255,.035);font-size:13px;color:#b9cad6}
.tag-accent{border-color:rgba(255,176,32,.35);color:var(--accent);background:rgba(255,176,32,.07)}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--line)}
.hero-media::after{content:"";position:absolute;inset:auto 0 0 0;height:58%;border-radius:0 0 var(--r-img) var(--r-img);background:linear-gradient(to top,rgba(6,11,18,.96),rgba(6,11,18,0));pointer-events:none}
.hero-stats{position:absolute;left:-18px;bottom:-26px;z-index:2;display:flex;gap:24px;padding:18px 22px;border-radius:var(--r-card);background:rgba(11,20,29,.82);border:1px solid var(--line);backdrop-filter:blur(16px);box-shadow:var(--sh-2)}
.hero-stats .stat strong{display:block;font-size:24px;line-height:1.2;color:var(--accent)}
.hero-stats .stat span{font-size:12px;color:var(--muted);letter-spacing:.04em}
.hero-stats .stat{min-width:78px}

/* 价值主张错位双栏 */
.value-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:52px;align-items:center}
.num-list{counter-reset:n;margin-top:26px}
.num-list li{counter-increment:n;position:relative;padding-left:44px;padding-bottom:20px;border-bottom:1px dashed rgba(255,255,255,.08);margin-bottom:20px}
.num-list li:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}
.num-list li::before{content:counter(n,decimal-leading-zero);position:absolute;left:0;top:2px;font-size:14px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums}
.num-list h3{font-size:17px;margin-bottom:6px}
.num-list p{font-size:14.5px;color:var(--muted);line-height:1.8}
.value-media{position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line)}
.value-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.value-badge{position:absolute;left:20px;bottom:20px;padding:10px 16px;border-radius:var(--r-chip);background:rgba(6,11,18,.78);border:1px solid rgba(18,211,182,.4);font-size:13px;color:#d7f5ef;backdrop-filter:blur(10px)}

/* 功能分组：粘性锚点 + 错位网格 */
.feature-layout{display:grid;grid-template-columns:230px minmax(0,1fr);gap:44px;align-items:start}
.anchor-nav{position:sticky;top:112px;border-left:1px solid var(--line);padding-left:18px}
.anchor-nav a{display:block;padding:9px 0;font-size:14px;color:var(--muted);transition:color var(--t),padding-left var(--t)}
.anchor-nav a:hover,.anchor-nav a.active{color:var(--primary);padding-left:6px}
.feature-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.feature-card{padding:26px 28px}
.feature-card.wide{grid-column:span 2;display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:28px;align-items:center;padding:30px 32px}
.feature-card .icon-box{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;border:1px solid rgba(18,211,182,.35);background:rgba(18,211,182,.08);color:var(--primary);margin-bottom:16px;font-weight:700}
.feature-card h3{margin-bottom:10px}
.feature-card p{font-size:14.5px;color:var(--muted);line-height:1.85;margin-bottom:14px}
.feature-card img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:14px;border:1px solid var(--line)}

/* 场景切换 */
.scene-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.scene-panel{display:none;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:44px;align-items:center}
.scene-panel.active{display:grid;animation:fadeUp .35s ease-out}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.scene-panel img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--line)}
.scene-panel ol{counter-reset:s}
.scene-panel ol li{counter-increment:s;position:relative;padding-left:38px;margin-bottom:20px}
.scene-panel ol li::before{content:counter(s);position:absolute;left:0;top:1px;width:24px;height:24px;border-radius:50%;border:1px solid rgba(18,211,182,.5);color:var(--primary);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums}
.scene-panel ol h3{font-size:17px;margin-bottom:6px}
.scene-panel ol p{font-size:14.5px;color:var(--muted);line-height:1.85}

/* 案例 */
.case-grid{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:24px;align-items:stretch}
.case-main{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);min-height:340px}
.case-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.case-main .case-body{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:flex-end;padding:28px;background:linear-gradient(to top,rgba(6,11,18,.96) 8%,rgba(6,11,18,.35) 55%,rgba(6,11,18,.05))}
.case-main h3{font-size:22px;margin:12px 0 8px}
.case-main p{font-size:14.5px;color:#c3d3dd;line-height:1.8}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:var(--r-chip);font-size:12px;font-weight:600;border:1px solid var(--line);background:rgba(255,255,255,.05);color:#c3d3dd}
.badge-accent{border-color:rgba(255,176,32,.38);background:rgba(255,176,32,.08);color:var(--accent)}
.case-list{display:flex;flex-direction:column;gap:20px}
.case-item{display:grid;grid-template-columns:150px minmax(0,1fr);gap:20px;align-items:center;padding:16px;border-radius:var(--r-card)}
.case-item img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:12px;border:1px solid var(--line)}
.case-item h3{font-size:16px;margin:8px 0 6px}
.case-item p{font-size:13.5px;color:var(--muted);line-height:1.75}
.case-item .result{font-size:13px;color:var(--accent);font-weight:600;margin-top:8px}

/* 价格 */
.price-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:center}
.price-card{padding:30px 28px;display:flex;flex-direction:column}
.price-card.recommend{transform:scale(1.06);border-color:rgba(18,211,182,.55);box-shadow:var(--sh-2),0 0 0 1px rgba(18,211,182,.18),0 0 46px -18px rgba(18,211,182,.55);background:rgba(255,255,255,.075);z-index:2}
.price-card .plan{font-size:15px;font-weight:600;color:#cfe2ea}
.price-card .amount{margin:14px 0 4px;font-size:34px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1.1}
.price-card .amount small{font-size:14px;color:var(--muted);font-weight:400;margin-left:6px}
.price-card .desc{font-size:13.5px;color:var(--muted);line-height:1.8;min-height:52px}
.price-card ul{margin:22px 0 26px;display:flex;flex-direction:column;gap:12px}
.price-card ul li{position:relative;padding-left:24px;font-size:14px;color:#c8d8e1;line-height:1.75}
.price-card ul li::before{content:"";position:absolute;left:0;top:8px;width:12px;height:7px;border-left:2px solid var(--primary);border-bottom:2px solid var(--primary);transform:rotate(-45deg)}
.price-card .btn{width:100%}

/* 最新信息 */
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.news-card{overflow:hidden;display:flex;flex-direction:column;border-radius:var(--r-card);background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(14px);box-shadow:var(--sh-1);transition:border-color var(--t),transform var(--t),box-shadow var(--t)}
.news-card:hover{border-color:rgba(18,211,182,.35);transform:translateY(-4px);box-shadow:var(--sh-2)}
.news-thumb{display:block;overflow:hidden}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform var(--t)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12.5px;color:var(--muted)}
.news-body h3{font-size:18px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body h3 a:hover{color:var(--primary)}
.news-body p{font-size:14px;color:var(--muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card.featured{grid-column:span 2;flex-direction:row}
.news-card.featured .news-thumb{flex:0 0 46%;}
.news-card.featured .news-thumb img{height:100%;aspect-ratio:auto;min-height:280px}
.news-card.featured .news-body{padding:30px 32px;justify-content:center}
.news-card.featured h3{font-size:23px;-webkit-line-clamp:3}
.empty-state{display:flex;flex-direction:column;align-items:flex-start;gap:14px;padding:34px 32px;border-radius:var(--r-card);background:var(--glass);border:1px dashed var(--line-strong)}
.empty-icon{width:46px;height:46px;border-radius:12px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--muted)}

/* FAQ */
.faq-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.faq-col{display:flex;flex-direction:column;gap:14px}
.faq-col h3{font-size:15px;color:var(--primary);letter-spacing:.06em;margin-bottom:4px}
.faq-item{border-radius:var(--r-card);border:1px solid var(--line);background:var(--glass);backdrop-filter:blur(14px);overflow:hidden;transition:border-color var(--t),background var(--t)}
.faq-item[open]{border-color:rgba(18,211,182,.35);background:rgba(255,255,255,.07)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px 18px 26px;font-size:15.5px;font-weight:600;position:relative}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:var(--primary);opacity:0;transition:opacity var(--t)}
.faq-item[open] summary::before{opacity:1;box-shadow:0 0 14px rgba(18,211,182,.7)}
.faq-item summary::after{content:"+";font-size:20px;line-height:1;color:var(--primary);flex:none;transition:transform var(--t)}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 22px 20px 26px;font-size:14.5px;color:var(--muted);line-height:1.9}

/* CTA 带 */
.cta-band{background:linear-gradient(120deg,rgba(18,211,182,.14),rgba(255,176,32,.07));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;padding:44px 0}
.cta-inner h2{font-size:26px;margin-bottom:8px}
.cta-inner p{color:#c3d3dd;font-size:15px;max-width:640px;line-height:1.85}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* 页脚 */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding-top:56px}
.footer-grid{display:grid;grid-template-columns:minmax(0,4fr) repeat(3,minmax(0,2.4fr));gap:36px;padding-bottom:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.9;max-width:320px}
.footer-col h4{font-size:14px;color:#d5e4ec;margin-bottom:16px;font-weight:600}
.footer-col a{display:block;font-size:13.5px;color:var(--muted);padding:6px 0;transition:color var(--t),padding-left var(--t)}
.footer-col a:hover{color:var(--primary);padding-left:4px}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:var(--muted)}

/* 响应式 */
@media (max-width:1023px){
  .main-nav{position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:2px;padding:12px 20px 18px;background:rgba(6,11,18,.97);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);display:none}
  .main-nav.open{display:flex}
  .main-nav a{padding:11px 10px;border-radius:10px}
  .main-nav a.active::after{display:none}
  .main-nav a.active{background:rgba(18,211,182,.1);color:var(--primary)}
  .nav-toggle{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .value-grid{grid-template-columns:1fr;gap:34px}
  .feature-layout{grid-template-columns:1fr;gap:28px}
  .anchor-nav{position:static;display:flex;flex-wrap:wrap;gap:10px;border-left:none;padding-left:0;border-bottom:1px solid var(--line);padding-bottom:14px}
  .anchor-nav a{padding:6px 14px;border:1px solid var(--line);border-radius:999px;background:var(--glass)}
  .anchor-nav a:hover,.anchor-nav a.active{padding-left:14px;border-color:rgba(18,211,182,.5)}
  .scene-panel.active{grid-template-columns:1fr;gap:28px}
  .case-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .section{padding-top:56px;padding-bottom:56px}
  .hero{padding-top:48px;padding-bottom:64px}
  .hero h1{font-size:32px}
  h2{font-size:25px}
  .news-grid{grid-template-columns:1fr}
  .news-card.featured{grid-column:span 1;flex-direction:column}
  .news-card.featured .news-thumb{flex:none}
  .news-card.featured .news-thumb img{aspect-ratio:16/9;min-height:0}
  .news-card.featured .news-body{padding:24px}
  .news-card.featured h3{font-size:19px}
  .price-grid{grid-template-columns:1fr}
  .price-card.recommend{transform:none}
  .feature-grid{grid-template-columns:1fr}
  .feature-card.wide{grid-column:span 1;grid-template-columns:1fr}
  .faq-columns{grid-template-columns:1fr}
  .hero-stats{position:static;margin-top:18px;left:auto;bottom:auto;width:100%;justify-content:space-between;gap:12px}
  .case-item{grid-template-columns:1fr}
  .case-item img{aspect-ratio:16/9}
  .cta-inner{padding:36px 0}
  .footer-grid{grid-template-columns:1fr}
  .notice-inner p{font-size:12.5px}
}
@media (max-width:520px){
  .hero h1{font-size:28px}
  .hero-stats{padding:14px 16px}
  .hero-stats .stat strong{font-size:20px}
  .brand-text span{display:none}
  .cta-actions .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --bg-0:#060B12;--bg-1:#0B141D;--glass:rgba(255,255,255,.055);--line:rgba(255,255,255,.10);
  --primary:#12D3B6;--primary-dim:#0C8E7C;--accent:#FFB020;--text:#E8F1F5;--muted:#90A3B0;
  --r-card:16px;--r-fig:18px;--r-btn:12px;--r-input:10px;
  --sh-1:0 12px 32px -18px rgba(0,0,0,.7);--sh-2:0 20px 48px -20px rgba(0,0,0,.8);
  --sect:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg-0);color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.8;font-weight:400;letter-spacing:.2px;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:32px 32px;
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(760px 520px at 8% -6%,rgba(18,211,182,.10),transparent 62%),radial-gradient(680px 460px at 96% 4%,rgba(255,176,32,.05),transparent 60%);
}
.site-header,.page-main,.site-footer{position:relative;z-index:1}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:.2px}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;transition:background .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;border-bottom:1px solid transparent}
.site-header.scrolled{background:rgba(6,11,18,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom-color:var(--line);box-shadow:0 10px 30px -22px rgba(0,0,0,.9)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px 0 10px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand svg{width:40px;height:40px;flex-shrink:0}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:15px;font-weight:700;letter-spacing:.4px}
.brand-text span{font-size:10px;color:var(--muted);letter-spacing:2px;margin-top:3px}
.main-nav{display:flex;align-items:center;gap:28px}
.main-nav a{position:relative;font-size:14px;color:var(--muted);padding:6px 0;transition:color .22s ease-out}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .22s ease-out}
.main-nav a:hover{color:var(--text)}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1)}
.main-nav a.active{color:var(--text);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:32px}
.nav-toggle{display:none;width:42px;height:42px;border-radius:var(--r-btn);border:1px solid var(--line);background:var(--glass);align-items:center;justify-content:center}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.chip-row{display:flex;gap:10px;overflow-x:auto;padding:0 0 14px;scrollbar-width:none}
.chip-row::-webkit-scrollbar{display:none}
.chip{display:inline-flex;align-items:center;gap:8px;white-space:nowrap;font-size:13px;color:var(--muted);
  padding:8px 16px;border-radius:999px;background:var(--glass);border:1px solid var(--line);
  transition:all .22s ease-out}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--primary-dim);transition:background .22s ease-out}
.chip:hover{color:var(--text);border-color:rgba(18,211,182,.35);transform:translateY(-2px)}
.chip.active{background:var(--primary);color:#04120F;font-weight:600;border-color:transparent;box-shadow:0 8px 26px -12px rgba(18,211,182,.7)}
.chip.active .dot{background:#04120F}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:14px;font-weight:600;
  padding:12px 22px;border-radius:var(--r-btn);transition:all .22s ease-out;border:1px solid transparent;white-space:nowrap}
.btn svg{width:16px;height:16px}
.btn-primary{background:linear-gradient(180deg,#17E4C4,#0FBFA5);color:#04120F;box-shadow:0 8px 30px -10px rgba(18,211,182,.65),inset 0 1px 0 rgba(255,255,255,.35)}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 10px 36px -10px rgba(18,211,182,.8)}
.btn-ghost{background:var(--glass);border-color:rgba(18,211,182,.45);color:var(--text)}
.btn-ghost:hover{background:rgba(18,211,182,.08);border-color:var(--primary)}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
.btn:active{transform:translateY(1px)}

/* ---------- page hero ---------- */
.page-main{display:block}
.hero-page{position:relative;overflow:hidden;border-radius:20px;border:1px solid var(--line);margin-top:20px;
  background-image:linear-gradient(115deg,rgba(6,11,18,.94),rgba(6,11,18,.62)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;box-shadow:var(--sh-1)}
.hero-page-inner{position:relative;padding:44px 40px;min-height:262px;display:flex;flex-direction:column;justify-content:center}
.crumb{font-size:13px;color:var(--muted);margin-bottom:18px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumb a:hover{color:var(--primary)}
.crumb .sep{opacity:.5}
.hero-page h1{font-size:36px;line-height:1.2;max-width:820px}
.hero-page h1 .hl{color:var(--primary)}
.hero-lead{margin-top:16px;color:#C4D4DC;font-size:15px;max-width:720px}
.hero-page-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;padding:6px 13px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--muted)}
.tag.accent{color:var(--accent);border-color:rgba(255,176,32,.35);background:rgba(255,176,32,.07)}

/* ---------- anchor chips ---------- */
.anchor-bar{position:sticky;top:74px;z-index:40;padding:14px 0;margin-top:26px;background:rgba(6,11,18,.86);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.anchor-bar .chip-row{padding:0}

/* ---------- sections ---------- */
.section{padding:var(--sect) 0}
.section.alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:780px;margin-bottom:44px;position:relative}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:2px;color:var(--primary);margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);opacity:.7}
.section-head h2{font-size:32px}
.section-head p{color:var(--muted);margin-top:14px;font-size:15px}
.corner-mark{position:absolute;top:-10px;right:-10px;width:34px;height:34px;border-top:1px solid rgba(18,211,182,.5);border-right:1px solid rgba(18,211,182,.5);border-radius:0 6px 0 0;pointer-events:none}

/* ---------- feature rows ---------- */
.f-row{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding:36px 0;border-bottom:1px dashed rgba(255,255,255,.08)}
.f-row:last-child{border-bottom:0;padding-bottom:0}
.f-row.reverse{grid-template-columns:.95fr 1.05fr}
.f-row.reverse .f-media{order:2}
.f-media{position:relative;border-radius:var(--r-fig);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);transition:all .22s ease-out}
.f-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s ease-out}
.f-media:hover{border-color:rgba(18,211,182,.35);transform:translateY(-4px);box-shadow:var(--sh-2)}
.f-media:hover img{transform:scale(1.03)}
.f-media .badge-on{position:absolute;left:14px;top:14px;font-size:12px;padding:6px 12px;border-radius:999px;
  background:rgba(6,11,18,.72);border:1px solid rgba(18,211,182,.4);color:var(--primary);backdrop-filter:blur(8px)}
.f-index{display:inline-flex;align-items:center;gap:10px;font-size:13px;color:var(--primary);letter-spacing:2px;margin-bottom:14px}
.f-index b{font-size:22px;font-weight:700;line-height:1;color:var(--primary)}
.f-body h3{font-size:20px;margin-bottom:14px}
.f-body p{color:var(--muted);font-size:15px}
.check-list{margin-top:20px;display:grid;gap:12px}
.check-list li{position:relative;padding-left:26px;font-size:14px;color:#C4D4DC}
.check-list li::before{content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:3px;
  background:rgba(18,211,182,.16);border:1px solid rgba(18,211,182,.7)}
.text-link{display:inline-flex;align-items:center;gap:8px;margin-top:22px;color:var(--primary);font-size:14px;font-weight:600}
.text-link svg{width:15px;height:15px;transition:transform .22s ease-out}
.text-link:hover svg{transform:translateX(4px)}

/* ---------- prep cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);padding:26px;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--sh-1);transition:all .22s ease-out}
.card:hover{transform:translateY(-4px);border-color:rgba(18,211,182,.35);box-shadow:var(--sh-2)}
.card h3{font-size:18px;margin-bottom:10px}
.card p{color:var(--muted);font-size:14px}
.icon-box{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(18,211,182,.10);border:1px solid rgba(18,211,182,.3);margin-bottom:18px}
.icon-box svg{width:20px;height:20px;stroke:var(--primary)}
.card .step{font-size:12px;letter-spacing:2px;color:var(--accent);margin-bottom:10px;display:block}

/* ---------- info strip ---------- */
.info-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
.info-strip > div{background:rgba(11,20,29,.85);padding:24px 22px}
.info-strip .k{font-size:12px;color:var(--muted);letter-spacing:1px}
.info-strip .v{font-size:26px;font-weight:700;color:var(--primary);margin-top:8px}
.info-strip .d{font-size:13px;color:var(--muted);margin-top:6px}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:34px;display:grid;gap:26px}
.timeline::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:1px;background:linear-gradient(180deg,rgba(18,211,182,.7),rgba(18,211,182,.05))}
.timeline li{position:relative}
.timeline li::before{content:"";position:absolute;left:-30px;top:8px;width:11px;height:11px;border-radius:50%;
  background:var(--bg-0);border:2px solid var(--primary);box-shadow:0 0 0 4px rgba(18,211,182,.10)}
.timeline h4{font-size:16px;margin-bottom:6px}
.timeline p{color:var(--muted);font-size:14px}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr 1fr;gap:20px 24px;align-items:start}
.faq-item{background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:all .22s ease-out}
.faq-item:hover{border-color:rgba(18,211,182,.3)}
.faq-q{width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;text-align:left;
  padding:20px 22px;font-size:15px;font-weight:600;color:var(--text)}
.faq-q .plus{position:relative;flex-shrink:0;width:18px;height:18px;margin-top:4px}
.faq-q .plus::before,.faq-q .plus::after{content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;transition:transform .22s ease-out}
.faq-q .plus::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.faq-q .plus::after{width:2px;height:14px;transform:translate(-50%,-50%)}
.faq-item.open .faq-q .plus::after{transform:translate(-50%,-50%) rotate(90deg)}
.faq-item.open{border-color:rgba(18,211,182,.4)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out}
.faq-a-inner{padding:0 22px 22px 22px;border-left:2px solid transparent;margin-left:0}
.faq-item.open .faq-a-inner{border-left-color:var(--primary);padding-left:18px}
.faq-item.open .faq-a{max-height:420px}
.faq-a p{color:var(--muted);font-size:14px}

/* ---------- CTA band ---------- */
.cta-band{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
  background:linear-gradient(115deg,rgba(18,211,182,.10),rgba(255,255,255,.03));
  border:1px solid rgba(18,211,182,.28);border-radius:20px;padding:36px 38px;box-shadow:var(--sh-1)}
.cta-band h2{font-size:26px}
.cta-band p{color:var(--muted);font-size:14px;margin-top:10px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:64px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.footer-brand p{color:var(--muted);font-size:13px;margin-top:18px;max-width:340px;line-height:1.9}
.footer-col h4{font-size:14px;margin-bottom:16px;color:var(--text)}
.footer-col a{display:block;font-size:13px;color:var(--muted);padding:5px 0;transition:color .22s ease-out,transform .22s ease-out}
.footer-col a:hover{color:var(--primary);transform:translateX(3px)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  :root{--sect:64px}
  .main-nav{position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:flex-start;gap:0;
    background:rgba(6,11,18,.97);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);
    padding:10px 20px 18px;display:none}
  .main-nav.open{display:flex}
  .main-nav a{width:100%;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.06)}
  .main-nav a::after{display:none}
  .nav-inner{position:relative}
  .nav-toggle{display:flex}
  .nav-actions .btn-primary{display:none}
  .f-row,.f-row.reverse{grid-template-columns:1fr;gap:26px}
  .f-row.reverse .f-media{order:0}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .faq-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .info-strip{grid-template-columns:repeat(2,1fr)}
  .hero-page h1{font-size:30px}
  .anchor-bar{top:66px}
}
@media (max-width:640px){
  :root{--sect:56px}
  .hero-page-inner{padding:30px 22px;min-height:230px}
  .hero-page h1{font-size:26px}
  .section-head h2{font-size:24px}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .info-strip{grid-template-columns:1fr}
  .cta-band{padding:26px 22px}
  .cta-band h2{font-size:21px}
  .f-index b{font-size:19px}
  .brand-text strong{font-size:14px}
}

/* roulang page: article */
:root{
  --bg-0:#060B12;
  --bg-1:#0B141D;
  --glass:rgba(255,255,255,.055);
  --line:rgba(255,255,255,.10);
  --primary:#12D3B6;
  --primary-dim:#0C8E7C;
  --accent:#FFB020;
  --text:#E8F1F5;
  --muted:#90A3B0;
  --radius-card:16px;
  --radius-media:18px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow-1:0 12px 32px -18px rgba(0,0,0,.7);
  --shadow-2:0 20px 48px -20px rgba(0,0,0,.8);
  --t:220ms ease-out;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body.page-body{
  margin:0;
  padding:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--bg-0);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.page-body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(900px 520px at 6% -8%, rgba(18,211,182,.10), transparent 62%),
    radial-gradient(700px 420px at 96% 8%, rgba(255,176,32,.05), transparent 60%),
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size:auto,auto,32px 32px,32px 32px;
}
img{max-width:100%;display:block;border:0}
a{color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
::selection{background:rgba(18,211,182,.32);color:#fff}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(6,11,18,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background var(--t),border-color var(--t);
}
.site-header.scrolled{background:rgba(6,11,18,.92);border-bottom-color:rgba(255,255,255,.14)}
.nav-inner{display:flex;align-items:center;gap:22px;height:72px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;flex:0 0 auto}
.brand svg{width:40px;height:40px;flex:0 0 40px}
.brand-text{display:flex;flex-direction:column;line-height:1.18}
.brand-text strong{font-size:17px;font-weight:700;color:#fff;letter-spacing:.02em}
.brand-text span{font-size:10px;letter-spacing:.22em;color:var(--muted)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:6px}
.main-nav a{
  position:relative;
  display:inline-block;
  padding:9px 12px;
  border-radius:10px;
  font-size:15px;
  color:var(--muted);
  text-decoration:none;
  transition:color var(--t),background var(--t);
}
.main-nav a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.main-nav a:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.main-nav a.active{color:#fff}
.main-nav a.active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:3px;height:2px;
  border-radius:2px;
  background:var(--primary);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  background:var(--glass);
  border:1px solid var(--line);
  position:relative;
  cursor:pointer;
  transition:border-color var(--t);
}
.nav-toggle:hover{border-color:rgba(18,211,182,.4)}
.nav-toggle span{position:absolute;left:50%;top:50%;width:18px;height:2px;background:var(--text);border-radius:2px;transform:translate(-50%,-50%)}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.chip-row{display:flex;gap:8px;overflow-x:auto;padding:0 0 12px;scrollbar-width:none}
.chip-row::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  white-space:nowrap;
  padding:7px 14px;
  border-radius:999px;
  background:var(--glass);
  border:1px solid var(--line);
  color:var(--muted);
  font-size:13px;
  text-decoration:none;
  transition:color var(--t),border-color var(--t),background var(--t),transform var(--t);
}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--primary-dim);transition:background var(--t)}
.chip:hover{color:var(--text);border-color:rgba(18,211,182,.35);transform:translateY(-1px)}
.chip:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.chip.active{background:var(--primary);border-color:var(--primary);color:#04211C;font-weight:600}
.chip.active .dot{background:#04211C}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 18px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  text-decoration:none;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t),filter var(--t);
}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn-primary{
  background:var(--primary);
  color:#04211C;
  box-shadow:0 8px 30px -10px rgba(18,211,182,.65);
}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 14px 38px -10px rgba(18,211,182,.78);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);filter:brightness(.96)}
.btn-ghost{
  background:var(--glass);
  border-color:rgba(18,211,182,.45);
  color:var(--text);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.btn-ghost:hover{background:rgba(18,211,182,.08);border-color:var(--primary)}
.btn-sm{padding:9px 14px;font-size:14px}
.arrow-ico{width:14px;height:14px;flex:0 0 14px}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:9px;
  padding:22px 0 0;
  font-size:13px;
  color:var(--muted);
}
.breadcrumb a{color:var(--muted);text-decoration:none;transition:color var(--t)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{opacity:.45}
.breadcrumb .current{color:#C8D8E1;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- article layout ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:44px;
  padding:26px 0 40px;
}
.post-main{min-width:0;max-width:820px}

.post-hero{padding-top:6px}
.post-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;
  border-radius:999px;
  background:rgba(18,211,182,.12);
  border:1px solid rgba(18,211,182,.35);
  color:var(--primary);
  font-size:12px;
  letter-spacing:.04em;
  text-decoration:none;
}
.post-title{
  font-size:38px;
  line-height:1.24;
  color:#fff;
  margin:16px 0 0;
}
.post-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;
  margin-top:18px;
  font-size:13px;
  color:var(--muted);
}
.post-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.post-meta .num{color:var(--accent);font-weight:600;font-variant-numeric:tabular-nums}
.share-group{display:flex;align-items:center;gap:8px;margin-left:auto}
.icon-btn{
  width:36px;height:36px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:var(--glass);
  border:1px solid var(--line);
  color:var(--muted);
  cursor:pointer;
  transition:color var(--t),border-color var(--t),transform var(--t),background var(--t);
}
.icon-btn:hover{color:var(--primary);border-color:rgba(18,211,182,.45);transform:translateY(-2px);background:rgba(18,211,182,.06)}
.icon-btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.icon-btn svg{width:17px;height:17px}

.post-cover{
  margin-top:26px;
  border-radius:var(--radius-media);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  position:relative;
  aspect-ratio:16/7;
  background:rgba(255,255,255,.04);
}
.post-cover img{width:100%;height:100%;object-fit:cover}
.post-cover::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(to top, rgba(6,11,18,.65), rgba(6,11,18,0) 58%);
  pointer-events:none;
}

/* ---------- article body ---------- */
.article-body{
  max-width:780px;
  padding-top:34px;
  font-size:16px;
  line-height:1.9;
  color:#D4E2EA;
}
.article-body p{margin:0 0 1.1em}
.article-body h2{
  position:relative;
  padding-left:16px;
  margin:2em 0 .8em;
  font-size:24px;
  color:#fff;
}
.article-body h2::before{
  content:"";
  position:absolute;left:0;top:.42em;
  width:4px;height:.95em;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 14px rgba(18,211,182,.65);
}
.article-body h3{font-size:19px;color:#fff;margin:1.6em 0 .6em}
.article-body h4{font-size:17px;color:#fff;margin:1.4em 0 .5em}
.article-body a{color:var(--primary);text-decoration:none;border-bottom:1px solid rgba(18,211,182,.35);transition:border-color var(--t)}
.article-body a:hover{border-bottom-color:var(--primary)}
.article-body strong{color:#fff}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.2em;list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.42em 0}
.article-body blockquote{
  margin:1.5em 0;
  padding:14px 20px;
  background:rgba(255,255,255,.08);
  border-left:3px solid var(--primary);
  border-radius:0 12px 12px 0;
  color:#CFE0E8;
  box-shadow:-3px 0 20px -8px rgba(18,211,182,.55);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:14px;margin:1.6em auto;box-shadow:var(--shadow-1)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body table{
  display:block;
  width:100%;
  overflow-x:auto;
  border-collapse:collapse;
  margin:1.4em 0;
  font-size:14px;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.article-body th{background:rgba(255,255,255,.05);color:#fff;font-weight:600}
.article-body pre{
  margin:1.4em 0;
  padding:16px;
  border-radius:14px;
  background:#08111A;
  border:1px solid var(--line);
  overflow-x:auto;
}
.article-body code{
  font-family:ui-monospace,Menlo,Consolas,monospace;
  font-size:14px;
  color:#9FE9DC;
}
.article-body hr{border:none;border-top:1px solid var(--line);margin:2.2em 0}
.article-body>*:first-child{margin-top:0}

/* ---------- empty state ---------- */
.empty-state{
  max-width:780px;
  margin-top:34px;
  padding:40px 32px;
  border-radius:var(--radius-card);
  background:var(--glass);
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-1);
  text-align:center;
}
.empty-state .ico{
  width:52px;height:52px;margin:0 auto 16px;
  border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(18,211,182,.10);
  border:1px solid rgba(18,211,182,.32);
  color:var(--primary);
}
.empty-state h2{font-size:20px;color:#fff;margin-bottom:10px}
.empty-state p{color:var(--muted);font-size:14px;margin-bottom:22px}

/* ---------- side cards ---------- */
.side-wrap{position:sticky;top:104px;display:flex;flex-direction:column;gap:20px;align-self:start}
.side-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px;
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-1);
  transition:border-color var(--t),box-shadow var(--t);
}
.side-card:hover{border-color:rgba(18,211,182,.28);box-shadow:var(--shadow-2)}
.side-card h3{font-size:15px;color:#fff;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px rgba(18,211,182,.6)}
.side-link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:9px 0;
  font-size:14px;
  color:var(--muted);
  text-decoration:none;
  border-bottom:1px dashed rgba(255,255,255,.09);
  transition:color var(--t),transform var(--t);
}
.side-link:last-of-type{border-bottom:none}
.side-link:hover{color:var(--primary);transform:translateX(2px)}
.side-note{font-size:13px;color:var(--muted);line-height:1.85}
.side-note strong{color:var(--accent);font-variant-numeric:tabular-nums}
.side-list li{
  position:relative;
  padding-left:16px;
  font-size:13px;
  color:var(--muted);
  line-height:1.85;
  margin-bottom:8px;
}
.side-list li::before{
  content:"";
  position:absolute;left:0;top:.68em;
  width:6px;height:6px;border-radius:50%;
  background:var(--primary-dim);
}

/* ---------- post footer / related ---------- */
.post-foot{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-top:40px;padding-top:26px;
  border-top:1px solid var(--line);
}
.rel-section{padding:56px 0 8px;border-top:1px solid var(--line);margin-top:56px}
.section-head{display:flex;flex-wrap:wrap;align-items:end;justify-content:space-between;gap:14px;margin-bottom:26px}
.section-head h2{font-size:30px;color:#fff}
.section-head p{font-size:14px;color:var(--muted);margin-top:8px;max-width:620px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;color:var(--primary);text-decoration:none;
  transition:gap var(--t),color var(--t);
}
.text-link:hover{gap:10px;color:#5CF0D9}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.rel-card{
  display:flex;flex-direction:column;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-media);
  overflow:hidden;
  text-decoration:none;
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-1);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(18,211,182,.35);box-shadow:var(--shadow-2)}
.rel-card:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
.rel-thumb{aspect-ratio:16/9;overflow:hidden;background:rgba(255,255,255,.04)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 420ms ease-out}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-body{padding:20px 22px 22px}
.rel-body h3{font-size:17px;color:#fff;margin-bottom:8px}
.rel-body p{font-size:13.5px;color:var(--muted);line-height:1.8}
.rel-meta{display:flex;align-items:center;justify-content:space-between;margin-top:14px;font-size:12px;color:var(--muted)}
.rel-meta .tag{
  padding:3px 10px;border-radius:999px;
  background:rgba(18,211,182,.10);
  border:1px solid rgba(18,211,182,.28);
  color:var(--primary);
}

/* ---------- FAQ ---------- */
.faq-wrap{padding:56px 0 8px}
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.faq-item{
  border:1px solid var(--line);
  border-radius:14px;
  background:var(--glass);
  overflow:hidden;
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  transition:border-color var(--t);
}
.faq-item:hover{border-color:rgba(18,211,182,.28)}
.faq-item.open{border-color:rgba(18,211,182,.42)}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:17px 20px;
  background:none;border:none;
  color:var(--text);
  font-size:15px;
  font-weight:600;
  text-align:left;
  cursor:pointer;
  transition:color var(--t);
}
.faq-q:focus-visible{outline:2px solid var(--primary);outline-offset:-2px}
.faq-q .plus{
  flex:0 0 18px;
  width:18px;height:18px;
  position:relative;
  transition:transform 260ms ease-out;
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--primary);border-radius:2px;transform:translate(-50%,-50%);
}
.faq-q .plus::before{width:14px;height:2px}
.faq-q .plus::after{width:2px;height:14px}
.faq-item.open .faq-q{color:#fff}
.faq-item.open .faq-q .plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 320ms ease-out}
.faq-item.open .faq-a{max-height:360px}
.faq-a p{padding:0 20px 18px;font-size:14px;color:var(--muted);line-height:1.85}

/* ---------- CTA band ---------- */
.cta-band{
  margin:64px 0 8px;
  padding:38px;
  border-radius:20px;
  background:linear-gradient(120deg, rgba(18,211,182,.15), rgba(255,255,255,.04) 62%);
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-1);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;right:-60px;top:-60px;
  width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle, rgba(18,211,182,.22), transparent 68%);
  pointer-events:none;
}
.cta-band h2{font-size:26px;color:#fff;margin-bottom:10px}
.cta-band p{font-size:14px;color:var(--muted);max-width:600px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- footer ---------- */
.site-footer{
  margin-top:56px;
  border-top:1px solid var(--line);
  background:rgba(11,20,29,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:32px;
  padding:56px 0 34px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:13.5px;color:var(--muted);line-height:1.9;max-width:340px}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:14px;font-weight:600}
.footer-col a{
  display:block;
  font-size:13.5px;
  color:var(--muted);
  text-decoration:none;
  padding:5px 0;
  transition:color var(--t),transform var(--t);
}
.footer-col a:hover{color:var(--primary);transform:translateX(2px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  padding:18px 0 26px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
}

/* ---------- toast ---------- */
.toast{
  position:fixed;
  left:50%;bottom:34px;
  transform:translate(-50%,18px);
  padding:12px 20px;
  border-radius:12px;
  background:rgba(8,17,26,.96);
  border:1px solid rgba(18,211,182,.38);
  color:var(--text);
  font-size:14px;
  box-shadow:var(--shadow-2);
  opacity:0;
  pointer-events:none;
  transition:opacity 260ms ease-out,transform 260ms ease-out;
  z-index:99;
}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .article-layout{grid-template-columns:1fr;gap:32px}
  .side-wrap{position:static;top:auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .rel-grid{grid-template-columns:1fr 1fr}
  .faq-grid{grid-template-columns:1fr}
  .post-title{font-size:33px}
}
@media (max-width:1023px){
  .main-nav{
    display:none;
    position:absolute;
    left:0;right:0;top:100%;
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    padding:10px 20px 14px;
    background:rgba(8,15,22,.98);
    border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-2);
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:12px 10px;font-size:15px}
  .main-nav a.active::after{left:10px;right:auto;width:22px;bottom:6px}
  .nav-toggle{display:block}
}
@media (max-width:768px){
  .nav-inner{height:64px;gap:14px}
  .brand-text strong{font-size:15px}
  .brand-text span{display:none}
  .post-title{font-size:28px}
  .article-body{font-size:15.5px;padding-top:26px}
  .article-body h2{font-size:21px}
  .cta-band{padding:28px 22px;margin:48px 0 8px}
  .cta-band h2{font-size:22px}
  .section-head h2{font-size:24px}
  .rel-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding:42px 0 26px}
  .share-group{margin-left:0;width:100%}
  .post-cover{aspect-ratio:16/10}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .nav-actions .btn-primary{display:none}
  .post-title{font-size:24px}
  .post-meta{gap:10px 14px}
  .cta-actions .btn{width:100%}
  .empty-state{padding:30px 20px}
}

/* roulang page: category2 */
:root{
    --bg-0:#060B12;
    --bg-1:#0B141D;
    --glass:rgba(255,255,255,.055);
    --line:rgba(255,255,255,.10);
    --primary:#12D3B6;
    --primary-dim:#0C8E7C;
    --accent:#FFB020;
    --text:#E8F1F5;
    --muted:#90A3B0;
    --r-card:16px;
    --r-img:18px;
    --r-btn:12px;
    --shadow-rest:0 12px 32px -18px rgba(0,0,0,.7);
    --shadow-hover:0 20px 48px -20px rgba(0,0,0,.8);
    --container:1200px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.8;
    color:var(--text);
    background-color:var(--bg-0);
    background-image:
      radial-gradient(920px 520px at 10% -8%, rgba(18,211,182,.10), transparent 62%),
      radial-gradient(760px 460px at 92% 4%, rgba(255,176,32,.05), transparent 60%),
      linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
    background-size:auto,auto,32px 32px,32px 32px;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;color:inherit;cursor:pointer;}
  h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;}
  p{margin:0;}
  ul,ol{margin:0;padding:0;list-style:none;}
  .container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
  .num{font-variant-numeric:tabular-nums;}

  /* ============ 导航 ============ */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:rgba(6,11,18,.72);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
    transition:background .25s ease-out,box-shadow .25s ease-out;
  }
  .site-header.scrolled{background:rgba(6,11,18,.9);box-shadow:0 12px 30px -24px rgba(0,0,0,.9);}
  .nav-inner{display:flex;align-items:center;gap:22px;min-height:72px;}
  .brand{display:flex;align-items:center;gap:12px;flex:none;}
  .brand svg{width:40px;height:40px;flex:none;}
  .brand-text{display:flex;flex-direction:column;line-height:1.15;}
  .brand-text strong{font-size:16px;font-weight:700;letter-spacing:.02em;}
  .brand-text span{font-size:10px;letter-spacing:.22em;color:var(--muted);}
  .main-nav{margin-left:auto;display:flex;align-items:center;gap:4px;}
  .main-nav a{
    position:relative;padding:8px 14px;border-radius:999px;font-size:14px;color:var(--muted);
    transition:color .22s ease-out,background .22s ease-out;
  }
  .main-nav a:hover{color:var(--text);background:rgba(255,255,255,.05);}
  .main-nav a.active{color:var(--text);font-weight:600;}
  .main-nav a.active::after{
    content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
    background:var(--primary);box-shadow:0 0 12px rgba(18,211,182,.8);
  }
  .nav-actions{display:flex;align-items:center;gap:12px;margin-left:32px;}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:var(--r-btn);padding:10px 18px;font-size:14px;font-weight:600;
    border:1px solid transparent;transition:all .22s ease-out;white-space:nowrap;
  }
  .btn-primary{
    background:linear-gradient(180deg,#1BE3C4,#0FBA9F);color:#04241F;
    box-shadow:0 8px 30px -10px rgba(18,211,182,.65);
  }
  .btn-primary:hover{filter:brightness(1.08);box-shadow:0 10px 36px -10px rgba(18,211,182,.9);transform:translateY(-1px);}
  .btn-primary:active{transform:translateY(0);filter:brightness(.98);}
  .btn-primary:focus-visible{outline:2px solid var(--primary);outline-offset:3px;}
  .btn-ghost{background:var(--glass);border-color:rgba(18,211,182,.45);color:var(--primary);}
  .btn-ghost:hover{background:rgba(18,211,182,.10);border-color:rgba(18,211,182,.7);}
  .btn-ghost:focus-visible{outline:2px solid var(--primary);outline-offset:3px;}
  .btn-lg{padding:14px 26px;font-size:15px;}
  .nav-toggle{
    display:none;width:42px;height:42px;border-radius:12px;
    background:var(--glass);border:1px solid var(--line);
  }
  .nav-toggle span{display:block;width:18px;height:2px;margin:0 auto;background:var(--text);position:relative;transition:background .2s ease-out;}
  .nav-toggle span::before,.nav-toggle span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);
    transition:transform .22s ease-out,top .22s ease-out;
  }
  .nav-toggle span::before{top:-6px;}
  .nav-toggle span::after{top:6px;}
  .nav-toggle[aria-expanded="true"] span{background:transparent;}
  .nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg);}
  .nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg);}

  .chip-row{
    display:flex;gap:10px;overflow-x:auto;padding:10px 0 14px;
    border-top:1px solid rgba(255,255,255,.06);scrollbar-width:none;
  }
  .chip-row::-webkit-scrollbar{display:none;}
  .chip{
    display:inline-flex;align-items:center;gap:8px;white-space:nowrap;
    padding:7px 16px;border-radius:999px;font-size:13px;color:var(--muted);
    background:var(--glass);border:1px solid var(--line);
    transition:color .22s ease-out,border-color .22s ease-out,background .22s ease-out,transform .22s ease-out;
  }
  .chip:hover{color:var(--text);border-color:rgba(18,211,182,.35);transform:translateY(-2px);}
  .chip.active{background:rgba(18,211,182,.16);border-color:rgba(18,211,182,.55);color:#7FF3E1;font-weight:600;}
  .chip .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);opacity:.75;}

  /* ============ 页首 Hero ============ */
  .page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
  .page-hero__bg{
    position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;background-position:center;
    opacity:.30;
  }
  .page-hero__mask{
    position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(6,11,18,.70),rgba(6,11,18,.90) 68%,var(--bg-0));
  }
  .page-hero__inner{position:relative;padding:52px 0 44px;min-height:300px;display:flex;flex-direction:column;justify-content:center;}
  .breadcrumb{
    display:flex;align-items:center;gap:8px;flex-wrap:wrap;
    font-size:13px;color:var(--muted);margin-bottom:20px;
  }
  .breadcrumb a{transition:color .2s ease-out;}
  .breadcrumb a:hover{color:var(--primary);}
  .breadcrumb .sep{opacity:.5;}
  .breadcrumb .current{color:#B9CBD5;}
  .page-hero h1{
    font-size:38px;line-height:1.2;max-width:900px;letter-spacing:.01em;
  }
  .page-hero h1 em{font-style:normal;color:var(--primary);}
  .hero-lead{margin-top:16px;max-width:680px;color:#AFC2CD;font-size:16px;}
  .hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
  .meta-pill{
    display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;
    background:var(--glass);border:1px solid var(--line);font-size:13px;color:var(--muted);
  }
  .meta-pill b{color:var(--accent);font-weight:700;}

  /* ============ 锚点行 ============ */
  .anchor-bar{
    position:sticky;top:72px;z-index:40;
    background:rgba(6,11,18,.82);
    backdrop-filter:blur(12px);
    border-bottom:1px solid var(--line);
  }
  .anchor-bar .container{display:flex;gap:10px;overflow-x:auto;padding:12px 20px;scrollbar-width:none;}
  .anchor-bar .container::-webkit-scrollbar{display:none;}
  .anchor{white-space:nowrap;font-size:13px;color:var(--muted);padding:6px 14px;border-radius:999px;border:1px solid transparent;transition:all .22s ease-out;}
  .anchor:hover{color:var(--primary);border-color:rgba(18,211,182,.35);background:rgba(18,211,182,.06);}

  /* ============ 板块通用 ============ */
  .section{padding:88px 0;}
  .section--alt{background:linear-gradient(180deg,rgba(11,20,29,.85),rgba(6,11,18,.2));border-top:1px solid rgba(255,255,255,.05);border-bottom:1px solid rgba(255,255,255,.05);}
  .section-head{max-width:740px;margin-bottom:44px;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.18em;
    color:var(--primary);text-transform:uppercase;margin-bottom:14px;
  }
  .eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);opacity:.7;}
  .section h2{font-size:32px;margin-bottom:14px;}
  .section-desc{color:var(--muted);font-size:15px;max-width:660px;}

  /* ============ 玻璃卡 ============ */
  .glass-card{
    background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
    backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
    padding:28px;box-shadow:var(--shadow-rest);
    transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
  }
  .glass-card:hover{transform:translateY(-4px);border-color:rgba(18,211,182,.35);box-shadow:var(--shadow-hover);}
  .glass-card h3{font-size:20px;margin-bottom:10px;}
  .glass-card p{color:var(--muted);font-size:15px;}
  .card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;}
  .card-index{font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--accent);font-variant-numeric:tabular-nums;}
  .arrow-link{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:14px;font-weight:600;color:var(--primary);transition:gap .22s ease-out,color .22s ease-out;}
  .arrow-link:hover{gap:11px;color:#7FF3E1;}
  .biz-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
  .mini-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
  .mini-card{
    background:var(--glass);border:1px solid var(--line);border-radius:14px;padding:22px 24px;
    transition:border-color .22s ease-out,transform .22s ease-out,background .22s ease-out;
  }
  .mini-card:hover{border-color:rgba(18,211,182,.35);transform:translateY(-3px);background:rgba(18,211,182,.05);}
  .mini-card h3{font-size:16px;margin-bottom:8px;}
  .mini-card p{font-size:14px;color:var(--muted);}
  .badge{
    display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
    font-size:12px;color:#7FF3E1;background:rgba(18,211,182,.10);border:1px solid rgba(18,211,182,.30);
  }
  .badge--amber{color:#FFD27A;background:rgba(255,176,32,.10);border-color:rgba(255,176,32,.32);}

  /* ============ 时间线 ============ */
  .timeline{display:grid;gap:0;}
  .step{position:relative;display:grid;grid-template-columns:64px 1fr;gap:24px;padding-bottom:34px;}
  .step:last-child{padding-bottom:0;}
  .step::before{
    content:"";position:absolute;left:31px;top:60px;bottom:0;width:1px;
    background:linear-gradient(180deg,rgba(18,211,182,.55),rgba(255,255,255,.05));
  }
  .step:last-child::before{display:none;}
  .step-num{
    width:64px;height:64px;border-radius:999px;display:grid;place-items:center;
    font-size:17px;font-weight:700;color:#7FF3E1;font-variant-numeric:tabular-nums;
    background:rgba(18,211,182,.08);border:1px solid rgba(18,211,182,.35);
    box-shadow:0 0 0 6px rgba(18,211,182,.04);
  }
  .step-body{
    background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
    padding:24px 26px;transition:border-color .22s ease-out,transform .22s ease-out;
  }
  .step-body:hover{border-color:rgba(18,211,182,.32);transform:translateX(4px);}
  .step-body h3{font-size:19px;margin-bottom:8px;}
  .step-body p{color:var(--muted);font-size:15px;}
  .step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}

  /* ============ 指标条 ============ */
  .stat-strip{
    display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
    background:linear-gradient(120deg,rgba(18,211,182,.10),rgba(255,255,255,.02));
    border:1px solid var(--line);border-radius:var(--r-img);padding:28px 30px;
  }
  .stat-item{text-align:left;}
  .stat-item strong{display:block;font-size:30px;font-weight:700;color:#7FF3E1;font-variant-numeric:tabular-nums;line-height:1.2;}
  .stat-item span{font-size:13px;color:var(--muted);}

  /* ============ 图文分栏 ============ */
  .split{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:center;}
  .split--reverse{grid-template-columns:7fr 5fr;}
  .ratio-4x3{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--line);}
  .figure-cap{margin-top:12px;font-size:13px;color:var(--muted);}
  .num-list{display:grid;gap:18px;}
  .num-list li{display:grid;grid-template-columns:32px 1fr;gap:14px;align-items:flex-start;}
  .num-list .idx{
    width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
    font-size:13px;font-weight:700;color:var(--primary);
    background:rgba(18,211,182,.10);border:1px solid rgba(18,211,182,.28);
    font-variant-numeric:tabular-nums;
  }
  .num-list h3{font-size:16px;margin-bottom:4px;}
  .num-list p{font-size:14px;color:var(--muted);}

  /* ============ FAQ ============ */
  .faq{display:grid;gap:14px;}
  .faq details{
    background:var(--glass);border:1px solid var(--line);border-radius:14px;
    padding:0 24px;transition:border-color .22s ease-out,background .22s ease-out;
  }
  .faq details[open]{border-color:rgba(18,211,182,.35);background:rgba(18,211,182,.045);}
  .faq summary{
    list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 0;font-size:16px;font-weight:600;
  }
  .faq summary::-webkit-details-marker{display:none;}
  .faq summary::after{
    content:"+";font-size:20px;font-weight:400;color:var(--primary);flex:none;
    transition:transform .25s ease-out;
  }
  .faq details[open] summary::after{transform:rotate(45deg);}
  .faq .faq-body{padding:0 0 22px;border-top:1px solid rgba(255,255,255,.07);margin-top:-2px;}
  .faq .faq-body p{padding-top:16px;color:var(--muted);font-size:15px;}

  /* ============ CTA ============ */
  .cta-band{
    display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
    background:linear-gradient(120deg,rgba(18,211,182,.14),rgba(255,255,255,.03));
    border:1px solid rgba(18,211,182,.30);border-radius:var(--r-img);
    padding:40px 44px;box-shadow:var(--shadow-rest);
  }
  .cta-band h2{font-size:26px;margin-bottom:10px;}
  .cta-band p{color:#AFC2CD;font-size:15px;max-width:620px;}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

  /* ============ 页脚 ============ */
  .site-footer{border-top:1px solid var(--line);background:rgba(11,20,29,.6);padding:64px 0 28px;margin-top:0;}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
  .footer-brand p{margin-top:18px;color:var(--muted);font-size:14px;max-width:340px;}
  .footer-col h4{font-size:14px;margin-bottom:16px;color:#C7D7E0;}
  .footer-col a{display:block;font-size:14px;color:var(--muted);padding:6px 0;transition:color .2s ease-out,transform .2s ease-out;}
  .footer-col a:hover{color:var(--primary);transform:translateX(3px);}
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.07);
    font-size:13px;color:var(--muted);
  }

  /* ============ 响应式 ============ */
  @media (max-width:1024px){
    .nav-toggle{display:block;}
    .main-nav{
      position:absolute;left:0;right:0;top:100%;
      display:none;flex-direction:column;align-items:stretch;gap:0;margin:0;
      background:rgba(6,11,18,.97);border-bottom:1px solid var(--line);
      padding:12px 20px 18px;backdrop-filter:blur(14px);
    }
    .main-nav.open{display:flex;}
    .main-nav a{padding:12px 8px;border-radius:10px;font-size:15px;}
    .main-nav a.active::after{left:8px;right:auto;width:26px;bottom:6px;}
    .nav-actions{margin-left:auto;}
    .split,.split--reverse{grid-template-columns:1fr;gap:32px;}
    .stat-strip{grid-template-columns:repeat(2,1fr);gap:26px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  }
  @media (max-width:768px){
    .section{padding:56px 0;}
    .section h2{font-size:26px;}
    .page-hero__inner{padding:40px 0 34px;min-height:240px;}
    .page-hero h1{font-size:28px;}
    .biz-grid,.mini-grid{grid-template-columns:1fr;}
    .step{grid-template-columns:52px 1fr;gap:16px;}
    .step-num{width:52px;height:52px;font-size:15px;}
    .step::before{left:25px;top:48px;}
    .cta-band{padding:30px 24px;}
    .cta-band h2{font-size:22px;}
    .anchor-bar{top:auto;position:static;}
    .brand-text strong{font-size:15px;}
  }
  @media (max-width:520px){
    .container{padding:0 16px;}
    .page-hero h1{font-size:24px;}
    .stat-strip{grid-template-columns:1fr;padding:24px 22px;}
    .footer-grid{grid-template-columns:1fr;}
    .nav-actions .btn{padding:9px 14px;font-size:13px;}
    .glass-card{padding:22px;}
  }

/* roulang page: category3 */
:root{
  --bg-0:#060B12;
  --bg-1:#0B141D;
  --glass:rgba(255,255,255,.055);
  --glass-strong:rgba(255,255,255,.09);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --primary:#12D3B6;
  --primary-dim:#0C8E7C;
  --accent:#FFB020;
  --danger:#FF7A6B;
  --text:#E8F1F5;
  --muted:#90A3B0;
  --r-card:16px;
  --r-img:18px;
  --r-btn:12px;
  --r-chip:999px;
  --r-input:10px;
  --sh-1:0 12px 32px -18px rgba(0,0,0,.7);
  --sh-2:0 20px 48px -20px rgba(0,0,0,.8);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 520px at 8% -6%, rgba(18,211,182,.10), transparent 60%),
    radial-gradient(700px 420px at 96% 4%, rgba(255,176,32,.05), transparent 62%),
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size:auto,auto,32px 32px,32px 32px;
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.num{font-variant-numeric:tabular-nums;font-weight:700}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,11,18,.78);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background 220ms ease-out,box-shadow 220ms ease-out;
}
.site-header.is-scrolled{background:rgba(6,11,18,.92);box-shadow:0 12px 30px -22px rgba(0,0,0,.9)}
.announce{
  display:flex;align-items:center;justify-content:center;gap:10px;
  min-height:38px;padding:6px 20px;font-size:13px;color:var(--primary);
  border-bottom:1px solid var(--line);text-align:center;letter-spacing:.2px;
}
.announce span{padding:1px 10px;border:1px solid rgba(18,211,182,.35);border-radius:var(--r-chip);font-size:12px}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand svg{width:40px;height:40px;flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16px;font-weight:700;letter-spacing:.3px}
.brand-text span{font-size:10px;letter-spacing:.22em;color:var(--muted)}
.main-nav{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center}
.main-nav a{
  position:relative;padding:8px 14px;border-radius:var(--r-btn);
  font-size:14.5px;color:var(--muted);transition:color 200ms ease-out,background 200ms ease-out;
}
.main-nav a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.main-nav a.active{color:var(--text)}
.main-nav a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 12px rgba(18,211,182,.7);
}
.nav-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:var(--r-btn);font-size:14.5px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:transform 220ms ease-out,box-shadow 220ms ease-out,background 220ms ease-out,border-color 220ms ease-out,color 220ms ease-out;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(180deg,#17E4C4,#0FAE95);
  color:#04211C;
  box-shadow:0 8px 30px -10px rgba(18,211,182,.65),inset 0 1px 0 rgba(255,255,255,.4);
}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 12px 36px -10px rgba(18,211,182,.75)}
.btn-ghost{
  background:var(--glass);border-color:rgba(18,211,182,.42);color:var(--text);
}
.btn-ghost:hover{background:rgba(18,211,182,.10);border-color:rgba(18,211,182,.7)}
.btn:active{transform:translateY(1px) scale(.995)}
.btn-lg{padding:14px 26px;font-size:15.5px;border-radius:14px}
.btn-arrow::after{content:"→";font-size:15px;transition:transform 220ms ease-out}
.btn-arrow:hover::after{transform:translateX(4px)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--glass);align-items:center;justify-content:center;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--text);border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.chip-row{
  display:flex;align-items:center;gap:10px;padding:10px 0 14px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.chip-row::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;gap:8px;flex:0 0 auto;
  padding:8px 16px;border-radius:var(--r-chip);font-size:13.5px;color:var(--muted);
  background:var(--glass);border:1px solid var(--line);
  transition:color 200ms ease-out,border-color 200ms ease-out,background 200ms ease-out,transform 200ms ease-out;
}
.chip .dot{width:6px;height:6px;border-radius:50%;background:rgba(18,211,182,.6)}
.chip:hover{color:var(--text);border-color:rgba(18,211,182,.4);transform:translateY(-1px)}
.chip.active{background:rgba(18,211,182,.16);border-color:rgba(18,211,182,.6);color:#CFFAF1;font-weight:600}
.chip.active .dot{background:var(--accent);box-shadow:0 0 8px rgba(255,176,32,.8)}
@media (max-width:1023px){
  .main-nav{
    position:absolute;left:20px;right:20px;top:100%;flex-direction:column;align-items:stretch;
    gap:4px;padding:14px;border:1px solid var(--line);border-radius:var(--r-card);
    background:rgba(9,17,25,.96);backdrop-filter:blur(16px);box-shadow:var(--sh-2);
    display:none;
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:12px 14px;font-size:15px}
  .main-nav a.active::after{left:14px;right:auto;width:26px;bottom:6px}
  .nav-toggle{display:inline-flex}
  .nav-inner{position:relative}
  .nav-actions .btn-primary{display:none}
}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section-alt{padding:88px 0;background:var(--bg-1);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:40px}
.section-head h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:.2px}
.section-head p{color:var(--muted);font-size:15px;max-width:640px;margin-top:10px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.18em;
  color:var(--primary);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);opacity:.7}
.corner-mark{position:relative}
.corner-mark::before,.corner-mark::after{
  content:"";position:absolute;width:18px;height:18px;border:1px solid rgba(18,211,182,.5);
}
.corner-mark::before{top:10px;right:10px;border-left:0;border-bottom:0}
.corner-mark::after{bottom:10px;left:10px;border-right:0;border-top:0}
.card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-1);
  transition:transform 220ms ease-out,border-color 220ms ease-out,box-shadow 220ms ease-out,background 220ms ease-out;
}
.card:hover{transform:translateY(-4px);border-color:rgba(18,211,182,.35);box-shadow:var(--sh-2),0 0 0 1px rgba(18,211,182,.08)}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-chip);
  font-size:12px;letter-spacing:.04em;border:1px solid var(--line-strong);color:var(--muted);background:rgba(255,255,255,.04);
}
.badge-primary{border-color:rgba(18,211,182,.45);color:#9FF3E3;background:rgba(18,211,182,.10)}
.badge-accent{border-color:rgba(255,176,32,.45);color:var(--accent);background:rgba(255,176,32,.10)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}

/* ============ 面包屑 & 页首 Hero ============ */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:22px 0 0;font-size:13px;color:var(--muted);
}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:#C7D6DE}
.page-hero{
  position:relative;margin-top:18px;border-radius:20px;overflow:hidden;
  border:1px solid var(--line);
  min-height:280px;display:flex;align-items:flex-end;
  background-image:linear-gradient(90deg,rgba(6,11,18,.94) 0%,rgba(6,11,18,.72) 48%,rgba(6,11,18,.42) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,18,.10) 0%,rgba(6,11,18,.88) 100%);
}
.page-hero-inner{position:relative;z-index:2;padding:44px 40px 40px;max-width:760px}
.page-hero h1{font-size:40px;line-height:1.2;font-weight:700;letter-spacing:.2px}
.page-hero h1 em{font-style:normal;color:var(--primary)}
.page-hero .lede{margin-top:16px;color:#B9C9D2;font-size:16px;max-width:620px}
.page-hero .hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
@media (max-width:768px){
  .page-hero{min-height:240px}
  .page-hero-inner{padding:30px 22px 28px}
  .page-hero h1{font-size:27px}
  .page-hero .lede{font-size:14.5px}
}

/* ============ 安全清单布局 ============ */
.layout-3{
  display:grid;grid-template-columns:220px minmax(0,1fr) 300px;gap:32px;align-items:start;
  margin-top:34px;
}
.sticky-panel{position:sticky;top:132px}
.anchor-list{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px;backdrop-filter:blur(14px);
}
.anchor-list h3{font-size:13px;letter-spacing:.16em;color:var(--muted);margin-bottom:12px;padding-left:10px}
.anchor-list a{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;
  font-size:14px;color:var(--muted);border-left:2px solid transparent;
  transition:color 200ms ease-out,background 200ms ease-out,border-color 200ms ease-out;
}
.anchor-list a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.anchor-list a.active{color:#CFFAF1;background:rgba(18,211,182,.12);border-left-color:var(--primary)}
.anchor-list a i{
  font-style:normal;font-size:11px;color:var(--muted);min-width:18px;
  font-variant-numeric:tabular-nums;
}
.checklist{display:flex;flex-direction:column;gap:18px}
.check-item{
  display:grid;grid-template-columns:64px minmax(0,1fr);gap:20px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;backdrop-filter:blur(14px);box-shadow:var(--sh-1);
  transition:transform 220ms ease-out,border-color 220ms ease-out,box-shadow 220ms ease-out;
}
.check-item:hover{transform:translateY(-4px);border-color:rgba(18,211,182,.35);box-shadow:var(--sh-2)}
.check-no{
  font-size:26px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;
  line-height:1;letter-spacing:.02em;opacity:.9;
}
.check-item h3{font-size:20px;font-weight:700;line-height:1.4}
.check-item .desc{color:var(--muted);font-size:15px;margin-top:10px}
.point-list{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.point-list li{
  position:relative;padding-left:22px;font-size:14.5px;color:#C3D2DA;
}
.point-list li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;
  background:rgba(18,211,182,.75);transform:rotate(45deg);
}
.check-foot{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px}
.tag-note{font-size:13px;color:var(--muted)}
.mini-faq{
  position:sticky;top:132px;background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px;backdrop-filter:blur(14px);box-shadow:var(--sh-1);
}
.mini-faq h3{font-size:17px;font-weight:700;display:flex;align-items:center;gap:8px}
.mini-faq h3::before{content:"";width:3px;height:16px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px rgba(18,211,182,.8)}
.mini-faq .hint{font-size:13px;color:var(--muted);margin-top:8px}
details.faq-mini{border-top:1px solid var(--line);margin-top:14px;padding-top:14px}
details.faq-mini summary{
  list-style:none;display:flex;align-items:flex-start;justify-content:space-between;gap:10px;
  font-size:14.5px;font-weight:600;cursor:pointer;
}
details.faq-mini summary::-webkit-details-marker{display:none}
details.faq-mini summary .plus{
  flex:0 0 auto;width:20px;height:20px;border-radius:6px;border:1px solid rgba(18,211,182,.5);
  position:relative;transition:transform 220ms ease-out,background 220ms ease-out;
}
details.faq-mini summary .plus::before,details.faq-mini summary .plus::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
}
details.faq-mini summary .plus::before{left:4px;right:4px;top:9px;height:1.5px}
details.faq-mini summary .plus::after{top:4px;bottom:4px;left:9px;width:1.5px;transition:opacity 200ms ease-out}
details.faq-mini[open] summary .plus{transform:rotate(45deg);background:rgba(18,211,182,.14)}
details.faq-mini p{margin-top:10px;font-size:13.8px;color:var(--muted);line-height:1.8}
.mini-faq .faq-cta{margin-top:18px;display:block;text-align:center}
@media (max-width:1199px){
  .layout-3{grid-template-columns:minmax(0,1fr) 300px;gap:26px}
  .sticky-panel{display:none}
}
@media (max-width:900px){
  .layout-3{grid-template-columns:minmax(0,1fr)}
  .mini-faq{position:static}
  .check-item{grid-template-columns:1fr;gap:12px;padding:22px}
  .check-no{font-size:22px}
  .section,.section-alt{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  .section-head h2{font-size:25px}
}

/* ============ 场景 / 流程 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
@media (max-width:900px){.grid-3{grid-template-columns:1fr}.grid-2{grid-template-columns:1fr}}
.scene-card{display:flex;flex-direction:column;gap:14px}
.scene-card .icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(18,211,182,.12);border:1px solid rgba(18,211,182,.35);color:var(--primary);
  font-size:18px;font-weight:700;
}
.scene-card h3{font-size:18px;font-weight:700}
.scene-card p{color:var(--muted);font-size:14.5px}
.media-card{
  overflow:hidden;border-radius:var(--r-img);border:1px solid var(--line);background:var(--glass);
  box-shadow:var(--sh-1);transition:transform 220ms ease-out,border-color 220ms ease-out,box-shadow 220ms ease-out;
}
.media-card:hover{transform:translateY(-4px);border-color:rgba(18,211,182,.35);box-shadow:var(--sh-2)}
.media-card img{width:100%;aspect-ratio:4/3;object-fit:cover}
.media-card .media-body{padding:22px 22px 24px}
.media-card h3{font-size:18px;font-weight:700;margin-bottom:10px}
.media-card p{color:var(--muted);font-size:14.5px}
.step-list{display:flex;flex-direction:column;gap:0;border-left:1px solid var(--line);margin-left:12px}
.step{position:relative;padding:0 0 26px 28px}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";position:absolute;left:-6px;top:6px;width:11px;height:11px;border-radius:50%;
  background:var(--bg-0);border:2px solid var(--primary);box-shadow:0 0 12px rgba(18,211,182,.6);
}
.step h4{font-size:16px;font-weight:700}
.step p{color:var(--muted);font-size:14.5px;margin-top:6px}
.step .step-index{font-size:12px;letter-spacing:.16em;color:var(--accent);display:block;margin-bottom:4px}

/* ============ CTA & 页脚 ============ */
.cta-band{
  background:linear-gradient(120deg,rgba(18,211,182,.14),rgba(255,176,32,.06));
  border:1px solid rgba(18,211,182,.28);border-radius:20px;
  padding:40px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  backdrop-filter:blur(14px);
}
.cta-band h2{font-size:28px;font-weight:700;line-height:1.35}
.cta-band p{color:#B9C9D2;font-size:15px;margin-top:10px;max-width:620px}
.site-footer{border-top:1px solid var(--line);background:var(--bg-1);padding:56px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.footer-brand p{color:var(--muted);font-size:13.5px;margin-top:16px;max-width:340px;line-height:1.9}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:14px}
.footer-col a{display:block;font-size:13.5px;color:var(--muted);padding:5px 0;transition:color 200ms ease-out,transform 200ms ease-out}
.footer-col a:hover{color:var(--primary);transform:translateX(3px)}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .cta-band{padding:26px}
  .cta-band h2{font-size:22px}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr}
  .brand-text strong{font-size:14.5px}
  .brand-text span{font-size:9px;letter-spacing:.16em}
  .page-hero h1{font-size:24px}
  .section-head h2{font-size:22px}
  .btn{width:100%;justify-content:center}
  .btn-row{flex-direction:column}
  .check-item{padding:18px}
}