/* roulang page: index */
:root{
  --bg:#070B1A;
  --panel:#101830;
  --panel-2:#16203C;
  --primary:#3FD9C0;
  --primary-soft:rgba(63,217,192,.12);
  --violet:#7C6BFF;
  --gold:#F5C36B;
  --light:#F3F6FB;
  --ink:#16203C;
  --ink-2:#4A5A75;
  --text:#D8E2F2;
  --muted:#93A3BE;
  --dim:#5B6A85;
  --line:rgba(150,180,255,.14);
  --line-soft:rgba(150,180,255,.10);
  --r-card:14px;
  --r-sm:10px;
  --r-img:12px;
  --shadow-card:0 18px 40px -20px rgba(0,10,40,.75);
  --shadow-pop:0 24px 60px -24px rgba(0,0,0,.8);
  --ease:cubic-bezier(.2,.6,.2,1);
  --side-w:240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
h1,h2,h3,h4,p,figure{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font:inherit}
::selection{background:rgba(63,217,192,.28);color:#fff}
.container{max-width:1200px;margin:0 auto;padding:0 48px;width:100%}
.section{padding:96px 0;position:relative}
.section--light{background:var(--light);color:var(--ink)}
.section--panel{background:linear-gradient(180deg,#0A1124 0%,#070B1A 100%)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:48px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.16em;color:var(--primary);margin-bottom:16px}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--primary)}
.h2{font-size:38px;line-height:1.28;font-weight:700;letter-spacing:.01em;color:#fff}
.section--light .h2{color:var(--ink)}
.lead{font-size:16px;line-height:1.9;color:var(--muted);max-width:640px}
.section--light .lead{color:var(--ink-2)}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary);border-bottom:1px solid transparent;padding-bottom:2px;transition:border-color .2s var(--ease),color .2s var(--ease)}
.text-link:hover{color:#7BF0DC;border-bottom-color:rgba(63,217,192,.7)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-sm);font-size:15px;font-weight:500;border:1px solid transparent;white-space:nowrap;transition:transform .2s var(--ease),background-color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease)}
.btn-primary{background:var(--primary);color:#04121A;box-shadow:0 8px 24px -8px rgba(63,217,192,.5)}
.btn-primary:hover{background:#57E7CF;transform:translateY(-1px);box-shadow:0 16px 34px -12px rgba(63,217,192,.62)}
.btn-primary:active{transform:none;box-shadow:0 6px 16px -8px rgba(63,217,192,.45)}
.btn-ghost{background:transparent;border-color:rgba(150,180,255,.28);color:var(--primary)}
.btn-ghost:hover{background:rgba(63,217,192,.10);border-color:rgba(63,217,192,.55);transform:translateY(-1px)}
.btn-ghost:active{transform:none}
.btn:focus-visible{outline:2px solid var(--violet);outline-offset:2px}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none}
.btn-block{width:100%}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.section--light .btn-ghost{color:var(--ink);border-color:rgba(22,32,60,.22)}
.section--light .btn-ghost:hover{background:rgba(22,32,60,.06);border-color:rgba(63,217,192,.6);color:#0E7A6B}

/* 徽章 / 标签 */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:10px;font-size:12px;line-height:1;background:rgba(124,107,255,.14);color:#BEB4FF;border:1px solid rgba(124,107,255,.3)}
.badge--cyan{background:var(--primary-soft);color:#7BF0DC;border-color:rgba(63,217,192,.3)}
.meta{font-size:13px;color:var(--muted);line-height:1.6}
.tag{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:8px;border:1px solid var(--line);background:rgba(22,32,60,.55);font-size:13px;color:var(--muted)}

/* 侧栏导航 */
.sidebar{position:fixed;top:0;left:0;bottom:0;width:var(--side-w);z-index:80;display:flex;flex-direction:column;padding:26px 18px;background:linear-gradient(180deg,#0B1226 0%,#070B1A 62%);border-right:1px solid var(--line-soft)}
.brand-link{display:flex;align-items:center;gap:12px}
.brand-mark{width:40px;height:40px;flex:0 0 40px;border-radius:var(--r-sm);display:grid;place-items:center;font-size:17px;font-weight:700;color:var(--primary);background:rgba(63,217,192,.12);border:1px solid rgba(63,217,192,.35);box-shadow:0 0 22px -8px rgba(63,217,192,.8)}
.brand-text strong{display:block;font-size:15px;color:#fff;line-height:1.35;letter-spacing:.01em}
.brand-text em{display:block;font-style:normal;font-size:11.5px;color:var(--muted);margin-top:4px;letter-spacing:.08em}
.side-divider{height:1px;background:var(--line-soft);margin:22px 0 18px}
.side-nav{display:flex;flex-direction:column;gap:4px;flex:1 1 auto}
.side-link{position:relative;display:flex;align-items:center;height:44px;padding:0 16px;border-radius:var(--r-sm);font-size:14.5px;color:var(--muted);transition:background-color .2s var(--ease),color .2s var(--ease)}
.side-link:hover{background:rgba(150,180,255,.08);color:#fff}
.side-link.is-active{background:var(--primary-soft);color:#fff}
.side-link.is-active::before{content:"";position:absolute;left:0;top:10px;bottom:10px;width:2px;border-radius:2px;background:var(--primary);box-shadow:0 0 12px rgba(63,217,192,.9)}
.side-link:focus-visible{outline:2px solid var(--violet);outline-offset:2px}
.side-actions{margin-top:24px;display:flex;flex-direction:column;gap:10px}
.side-close{display:none;position:absolute;top:18px;right:16px;width:34px;height:34px;border-radius:8px;border:1px solid var(--line);color:var(--muted);font-size:18px;line-height:1}
.side-close:hover{color:#fff;border-color:rgba(63,217,192,.5)}

/* 移动端顶栏 */
.topbar{display:none;position:sticky;top:0;z-index:70;height:60px;align-items:center;justify-content:space-between;padding:0 20px;background:rgba(7,11,26,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line-soft)}
.topbar-brand{font-size:15px;font-weight:600;color:#fff;letter-spacing:.01em}
.burger{width:42px;height:42px;border-radius:10px;border:1px solid var(--line);display:grid;place-items:center;gap:4px;padding:11px 10px}
.burger span{display:block;width:100%;height:1.5px;background:var(--muted);border-radius:2px;transition:background-color .2s}
.burger:hover span{background:var(--primary)}
.burger:focus-visible{outline:2px solid var(--violet);outline-offset:2px}
.backdrop{position:fixed;inset:0;background:rgba(4,7,16,.68);backdrop-filter:blur(2px);z-index:75}

/* 主内容 */
.main{margin-left:var(--side-w)}

/* Hero */
.hero{position:relative;min-height:560px;display:flex;align-items:center;padding:96px 0;overflow:hidden;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(118deg,rgba(7,11,26,.94) 0%,rgba(7,11,26,.80) 48%,rgba(7,11,26,.92) 100%)}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.9;background-image:
  radial-gradient(1.5px 1.5px at 14% 24%,rgba(255,255,255,.55),transparent 60%),
  radial-gradient(1.5px 1.5px at 38% 12%,rgba(180,220,255,.45),transparent 60%),
  radial-gradient(1px 1px at 62% 30%,rgba(255,255,255,.40),transparent 60%),
  radial-gradient(1.5px 1.5px at 84% 18%,rgba(245,195,107,.40),transparent 60%),
  radial-gradient(1px 1px at 22% 72%,rgba(255,255,255,.35),transparent 60%),
  radial-gradient(1.5px 1.5px at 72% 78%,rgba(124,107,255,.40),transparent 60%),
  radial-gradient(1px 1px at 92% 62%,rgba(255,255,255,.30),transparent 60%)}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;align-items:center;width:100%}
.hero-badge{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 13px;border-radius:999px;border:1px solid rgba(124,107,255,.45);background:rgba(124,107,255,.12);color:#C6BDFF;font-size:12px;letter-spacing:.06em;margin-bottom:22px}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(63,217,192,.9);display:inline-block}
.hero h1{font-size:48px;line-height:1.24;font-weight:700;letter-spacing:.01em;color:#fff;max-width:720px}
.hero h1 span{color:var(--primary)}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.85;color:#B5C3DA;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-card{background:rgba(22,32,60,.62);backdrop-filter:blur(14px);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-pop);padding:24px;position:relative;overflow:hidden}
.hero-card::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(190,225,255,.55),transparent)}
.hero-card h2{font-size:13px;font-weight:500;letter-spacing:.14em;color:var(--muted);margin-bottom:16px}
.hero-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:13px 0;border-top:1px solid var(--line-soft)}
.hero-row:first-of-type{border-top:0}
.hero-row span{font-size:14px;color:var(--muted)}
.hero-row b{font-size:15px;font-weight:600;color:var(--gold);letter-spacing:.01em}
.hero-row b.is-ok{color:var(--primary)}

/* 主张区 */
.claim-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;align-items:center}
.claim-text p{margin-top:20px;font-size:16px;line-height:1.95;color:var(--ink-2)}
.cards-offset{display:grid;gap:20px}
.card-light{background:#fff;border:1px solid #E2E8F2;border-radius:var(--r-card);box-shadow:0 14px 34px -26px rgba(22,32,60,.55);padding:24px;transition:border-color .22s var(--ease),transform .22s var(--ease)}
.card-light:hover{border-color:rgba(63,217,192,.7);transform:translateY(-2px)}
.card-light h3{font-size:16px;font-weight:600;color:var(--ink);margin-bottom:10px}
.card-light p{font-size:14px;line-height:1.85;color:var(--ink-2)}
.card-light .mini{display:block;font-size:12px;letter-spacing:.14em;color:#0E7A6B;margin-bottom:8px}
.cards-offset .card-light:nth-child(2){transform:translateX(30px)}
.cards-offset .card-light:nth-child(2):hover{transform:translate(30px,-2px)}

/* 流程 */
.path-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:64px;align-items:start}
.path-left p{margin-top:20px;font-size:15.5px;line-height:1.95;color:var(--muted)}
.path-left .btn{margin-top:32px}
.steps{border-top:1px solid var(--line-soft)}
.step{display:grid;grid-template-columns:64px 1fr;gap:18px;padding:26px 0;border-bottom:1px solid var(--line-soft);transition:background-color .2s var(--ease)}
.step:hover{background:rgba(150,180,255,.05)}
.step-num{font-size:13px;letter-spacing:.18em;color:var(--primary);padding-top:3px}
.step h3{font-size:18px;font-weight:600;color:#fff;margin-bottom:8px}
.step p{font-size:14.5px;line-height:1.8;color:var(--muted)}

/* 内容卡 */
.featured-grid{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:24px}
.featured-side{display:grid;gap:24px;align-content:start}
.content-card{display:flex;flex-direction:column;background:rgba(22,32,60,.55);backdrop-filter:blur(14px);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-card);padding:16px;position:relative;overflow:hidden;transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease)}
.content-card::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(190,225,255,.45),transparent)}
.content-card:hover{border-color:rgba(63,217,192,.4);transform:translateY(-3px);box-shadow:0 26px 54px -26px rgba(0,10,40,.85)}
.content-thumb{border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/9;background:#0B1226}
.content-card--wide .content-thumb{aspect-ratio:21/9}
.content-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
.content-card:hover .content-thumb img{transform:scale(1.03)}
.content-body{padding:18px 4px 4px;display:flex;flex-direction:column;gap:10px}
.content-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.content-title{font-size:20px;line-height:1.45;font-weight:600;color:#fff}
.content-card--wide .content-title{font-size:24px}
.content-title a{color:inherit}
.content-title a:hover{color:var(--primary)}
.content-desc{font-size:14px;line-height:1.8;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.content-more{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;color:var(--primary);margin-top:2px}
.content-more span{transition:transform .2s var(--ease)}
.content-card:hover .content-more span{transform:translateX(4px)}

/* 数据条 */
.stats-wrap{background:rgba(16,24,48,.72);border:1px solid var(--line);border-radius:var(--r-card);padding:34px 8px;box-shadow:var(--shadow-card)}
.stats{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:0 26px;border-left:1px solid var(--line-soft);text-align:left}
.stat:first-child{border-left:0}
.stat b{display:block;font-size:34px;line-height:1.2;font-weight:600;color:var(--gold);letter-spacing:.01em}
.stat span{display:block;margin-top:8px;font-size:14px;color:var(--muted)}
.trust-tags{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* 最新信息 */
.news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{display:flex;flex-direction:column;background:rgba(22,32,60,.55);backdrop-filter:blur(14px);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-card);overflow:hidden;position:relative;transition:border-color .22s var(--ease),transform .22s var(--ease)}
.news-card::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(190,225,255,.4),transparent)}
.news-card:hover{border-color:rgba(63,217,192,.4);transform:translateY(-3px)}
.news-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:#0B1226}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.news-title{font-size:17px;line-height:1.5;font-weight:600;color:#fff;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-title a{color:inherit}
.news-title a:hover{color:var(--primary)}
.news-desc{font-size:13.5px;line-height:1.8;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-more{margin-top:auto;display:inline-flex;align-items:center;gap:6px;font-size:13.5px;color:var(--primary)}
.news-empty{border:1px dashed var(--line);border-radius:var(--r-card);min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;color:var(--muted);font-size:14px;background:rgba(16,24,48,.4)}
.news-empty svg{width:34px;height:34px;stroke:var(--dim);fill:none;stroke-width:1.5}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:56px;align-items:start}
.faq-intro p{margin-top:18px;font-size:15px;line-height:1.9;color:var(--muted)}
.faq-list{border-top:1px solid var(--line-soft)}
.faq-item{border-bottom:1px solid var(--line-soft)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 8px;font-size:16px;font-weight:600;color:var(--text);cursor:pointer;list-style:none;transition:background-color .2s var(--ease),color .2s var(--ease)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:rgba(150,180,255,.06);color:#fff}
.faq-item summary:focus-visible{outline:2px solid var(--violet);outline-offset:-2px}
.faq-icon{flex:0 0 auto;width:22px;height:22px;position:relative;color:var(--primary);transition:transform .22s var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px}
.faq-icon::before{left:50%;top:4px;bottom:4px;width:1.5px;transform:translateX(-50%)}
.faq-icon::after{top:50%;left:4px;right:4px;height:1.5px;transform:translateY(-50%)}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-body{padding:0 8px 22px;font-size:15px;line-height:1.85;color:var(--muted);border-top:1px solid var(--line-soft);padding-top:16px}

/* CTA */
.cta-panel{background:linear-gradient(140deg,rgba(22,32,60,.9),rgba(11,18,38,.95));border:1px solid var(--line);border-radius:18px;padding:48px;display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:48px;align-items:center;box-shadow:var(--shadow-pop);position:relative;overflow:hidden}
.cta-panel::after{content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(63,217,192,.16),transparent 70%);pointer-events:none}
.cta-panel h2{font-size:30px;line-height:1.35;font-weight:700;color:#fff}
.cta-panel p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--muted)}
.sub-form{display:flex;gap:12px}
.input{flex:1 1 auto;min-width:0;height:48px;border-radius:var(--r-sm);background:rgba(7,11,26,.7);border:1px solid var(--line);color:var(--text);padding:0 16px;font-size:15px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.input::placeholder{color:var(--dim)}
.input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(63,217,192,.16)}
.input.is-error{border-color:#FF6B6B;box-shadow:0 0 0 3px rgba(255,107,107,.14)}
.form-note{margin-top:14px;font-size:12px;color:var(--dim);line-height:1.7}
.form-msg{margin-top:12px;font-size:13px;display:none}
.form-msg.is-ok{display:block;color:var(--primary)}
.form-msg.is-err{display:block;color:#FF6B6B}

/* 页脚 */
.footer{position:relative;background:#050914;border-top:1px solid var(--line-soft);padding:72px 0 0;overflow:hidden}
.footer::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;background-image:
  radial-gradient(1px 1px at 10% 30%,rgba(255,255,255,.4),transparent 60%),
  radial-gradient(1px 1px at 46% 68%,rgba(180,220,255,.35),transparent 60%),
  radial-gradient(1.5px 1.5px at 78% 22%,rgba(255,255,255,.3),transparent 60%),
  radial-gradient(1px 1px at 90% 74%,rgba(124,107,255,.35),transparent 60%)}
.footer-inner{position:relative;z-index:2}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:48px}
.footer-brand .brand-text strong{font-size:16px}
.footer-brand p{margin-top:16px;font-size:13.5px;line-height:1.85;color:var(--muted);max-width:280px}
.footer h4{font-size:14px;font-weight:600;color:#fff;letter-spacing:.06em;margin-bottom:16px}
.footer-links li a{display:inline-block;padding:5px 0;font-size:14px;color:var(--muted)}
.footer-links li a:hover{color:var(--primary)}
.footer-links li a:focus-visible{outline:2px solid var(--violet);outline-offset:2px;border-radius:4px}
.footer-contact li{font-size:13.5px;color:var(--muted);padding:5px 0;line-height:1.7}
.footer-contact li b{color:var(--text);font-weight:500}
.footer .input{height:44px;font-size:14px}
.footer .btn{height:44px;font-size:14px;padding:0 18px}
.footer-bottom{position:relative;z-index:2;margin-top:56px;border-top:1px solid var(--line-soft);padding:22px 0;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;font-size:12px;color:var(--dim)}
.footer-bottom a{color:var(--dim)}
.footer-bottom a:hover{color:var(--primary)}
.footer-bottom-links{display:flex;gap:20px;flex-wrap:wrap}

/* 响应式 */
@media (max-width:1279px){
  :root{--side-w:200px}
  .container{padding:0 32px}
  .hero h1{font-size:40px}
  .h2{font-size:32px}
  .path-grid,.faq-grid,.claim-grid{gap:40px}
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr;gap:36px}
  .footer-sub{grid-column:1/-1}
}
@media (max-width:1023px){
  .sidebar{width:288px;transform:translateX(-100%);transition:transform .28s var(--ease);box-shadow:var(--shadow-pop)}
  .sidebar.is-open{transform:translateX(0)}
  .side-close{display:block}
  .main{margin-left:0}
  .topbar{display:flex}
  .hero{padding:72px 0;min-height:auto}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:34px}
  .hero-card{max-width:420px}
  .section{padding:72px 0}
  .claim-grid,.path-grid,.faq-grid{grid-template-columns:1fr;gap:36px}
  .cards-offset .card-light:nth-child(2){transform:none}
  .cards-offset .card-light:nth-child(2):hover{transform:translateY(-2px)}
  .featured-grid{grid-template-columns:1fr}
  .featured-side{grid-template-columns:1fr 1fr}
  .news-list{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr);gap:26px 0}
  .stat:nth-child(3){border-left:0}
  .cta-panel{grid-template-columns:1fr;gap:28px;padding:36px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .topbar{height:58px}
  .hero{padding:56px 0}
  .hero h1{font-size:29px;line-height:1.3}
  .hero-sub{font-size:15.5px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .h2{font-size:24px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px}
  .featured-side{grid-template-columns:1fr}
  .news-list{grid-template-columns:1fr}
  .content-card--wide .content-title{font-size:19px}
  .stats{grid-template-columns:1fr 1fr}
  .stat{padding:0 16px}
  .stat b{font-size:27px}
  .stat span{font-size:13px}
  .sub-form{flex-direction:column}
  .sub-form .btn{width:100%}
  .cta-panel{padding:28px 22px}
  .cta-panel h2{font-size:23px}
  .footer{padding-top:56px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{justify-content:flex-start;font-size:12px}
  .faq-item summary{font-size:15px;padding:17px 4px}
  .step{grid-template-columns:48px 1fr;gap:12px}
  .step h3{font-size:16.5px}
}
@media (max-width:479px){
  .hero h1{font-size:26px}
  .stats{grid-template-columns:1fr}
  .stat{border-left:0;padding:0}
}

/* roulang page: article */
:root{
  --bg:#070B1A;
  --panel:#101830;
  --panel-2:#16203C;
  --primary:#3FD9C0;
  --violet:#7C6BFF;
  --gold:#F5C36B;
  --light:#F3F6FB;
  --line:rgba(150,180,255,.14);
  --line-soft:rgba(150,180,255,.10);
  --text:#D8E2F2;
  --muted:#93A3BE;
  --dim:#5B6A85;
  --danger:#FF6B6B;
  --r-card:14px;
  --r-sm:10px;
  --r-img:12px;
  --shadow-card:0 18px 40px -20px rgba(0,10,40,.75);
  --shadow-float:0 24px 60px -24px rgba(0,0,0,.8);
  --ease:cubic-bezier(.2,.6,.2,1);
  --sidebar-w:240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(1px 1px at 12% 18%,rgba(180,205,255,.32),transparent 60%),
    radial-gradient(1px 1px at 28% 62%,rgba(180,205,255,.22),transparent 60%),
    radial-gradient(1px 1px at 46% 8%,rgba(180,205,255,.26),transparent 60%),
    radial-gradient(1px 1px at 63% 44%,rgba(180,205,255,.18),transparent 60%),
    radial-gradient(1px 1px at 79% 74%,rgba(180,205,255,.24),transparent 60%),
    radial-gradient(1px 1px at 92% 26%,rgba(180,205,255,.2),transparent 60%);
  background-repeat:no-repeat;
  background-size:100% 100%;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.32;letter-spacing:.015em;color:#F2F7FF}
p{margin:0}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:#6DEBDA}
img{max-width:100%;display:block;border-radius:var(--r-img)}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font:inherit}
:focus-visible{outline:2px solid var(--violet);outline-offset:2px;border-radius:6px}

/* ===== layout ===== */
.layout{display:flex;align-items:flex-start;min-height:100vh}
.sidebar{
  position:sticky;top:0;
  flex:0 0 var(--sidebar-w);width:var(--sidebar-w);
  height:100vh;display:flex;flex-direction:column;gap:24px;
  padding:28px 18px 24px;
  background:linear-gradient(180deg,#0B1226 0%,#080D1F 100%);
  border-right:1px solid var(--line);
  overflow-y:auto;z-index:60;
}
.brand-link{display:flex;align-items:center;gap:10px;color:#F2F7FF;padding:0 6px}
.brand-link:hover{color:#fff}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  display:grid;place-items:center;font-weight:700;font-size:16px;
  background:rgba(63,217,192,.12);border:1px solid rgba(63,217,192,.38);color:var(--primary);
}
.brand-text strong{display:block;font-size:15px;letter-spacing:.02em;font-weight:700}
.brand-text em{display:block;font-style:normal;font-size:11.5px;color:var(--muted);margin-top:2px;letter-spacing:.04em}
.side-line{height:1px;background:var(--line-soft)}
.side-nav{display:flex;flex-direction:column;gap:4px}
.side-label{font-size:11.5px;color:var(--dim);letter-spacing:.16em;padding:0 8px 6px}
.side-link{
  position:relative;display:block;padding:11px 14px;border-radius:var(--r-sm);
  font-size:14.5px;color:var(--muted);transition:background .2s var(--ease),color .2s var(--ease);
}
.side-link:hover{background:rgba(150,180,255,.08);color:#EAF1FF}
.side-link.is-active{background:rgba(63,217,192,.12);color:#EBFBF7}
.side-link.is-active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:2px;border-radius:2px;background:var(--primary);
}
.side-actions{margin-top:auto;display:flex;flex-direction:column;gap:10px;padding-top:20px}
.side-note{font-size:12px;color:var(--dim);line-height:1.7;padding:0 4px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 20px;border-radius:var(--r-sm);
  font-size:14.5px;font-weight:500;letter-spacing:.02em;
  transition:transform .18s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-primary{
  background:var(--primary);color:#04211C;
  box-shadow:0 8px 24px -8px rgba(63,217,192,.5);
}
.btn-primary:hover{background:#58E7D0;color:#04211C;transform:translateY(-1px);box-shadow:0 12px 30px -8px rgba(63,217,192,.62)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px -8px rgba(63,217,192,.45)}
.btn-primary:disabled{opacity:.45;box-shadow:none;cursor:not-allowed}
.btn-ghost{background:transparent;border:1px solid rgba(63,217,192,.5);color:var(--primary)}
.btn-ghost:hover{background:rgba(63,217,192,.1);border-color:rgba(63,217,192,.8);color:#7DF0DE;transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-block{width:100%}

/* ===== main ===== */
.main{flex:1;min-width:0;display:flex;flex-direction:column;min-height:100vh}
.container{width:100%;max-width:1120px;margin:0 auto;padding:0 48px}

.topbar{
  display:none;position:sticky;top:0;z-index:50;
  align-items:center;justify-content:space-between;gap:12px;
  height:60px;padding:0 20px;
  background:rgba(8,13,31,.92);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.topbar .brand-text strong{font-size:14px}
.topbar .brand-mark{width:32px;height:32px;flex:0 0 32px;font-size:14px;border-radius:9px}
.burger{
  width:42px;height:38px;border-radius:var(--r-sm);border:1px solid var(--line);
  display:grid;place-items:center;gap:4px;padding:9px 10px;background:rgba(22,32,60,.6);
}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:#CBD8F0;transition:transform .2s var(--ease)}
.burger:hover span{background:var(--primary)}
.scrim{
  display:none;position:fixed;inset:0;background:rgba(3,6,16,.68);
  backdrop-filter:blur(2px);z-index:55;
}
.scrim.is-open{display:block}

/* ===== hero banner ===== */
.article-hero{
  position:relative;
  padding:44px 0 40px;
  background-image:linear-gradient(90deg,rgba(7,11,26,.94) 0%,rgba(7,11,26,.86) 55%,rgba(7,11,26,.72) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line-soft);
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1px 1px at 18% 34%,rgba(210,228,255,.45),transparent 60%),
    radial-gradient(1px 1px at 42% 72%,rgba(210,228,255,.3),transparent 60%),
    radial-gradient(1px 1px at 68% 22%,rgba(210,228,255,.34),transparent 60%),
    radial-gradient(1px 1px at 86% 58%,rgba(210,228,255,.28),transparent 60%);
  opacity:.9;
}
.article-hero .container{position:relative;z-index:2}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:12.5px;color:var(--muted);margin-bottom:22px;
}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:var(--dim)}
.crumb .now{color:#C7D4EC}
.article-head{max-width:860px}
.badge-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:16px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:10px;font-size:12px;letter-spacing:.03em;
  background:rgba(124,107,255,.14);border:1px solid rgba(124,107,255,.32);color:#C9C2FF;
}
.badge.is-teal{background:rgba(63,217,192,.12);border-color:rgba(63,217,192,.32);color:#8CF0E0}
.article-head h1{
  font-size:38px;line-height:1.3;font-weight:700;letter-spacing:.02em;
  color:#F4F8FF;margin-bottom:18px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;
  font-size:13px;color:var(--muted);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--dim)}
.head-rule{height:1px;background:var(--line-soft);margin-top:24px}

/* ===== article body ===== */
.article-wrap{padding:52px 0 8px}
.article-body{max-width:760px;font-size:17.5px;line-height:1.9;color:#CBD8EC}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.4em}
.article-body h2{
  font-size:24px;line-height:1.4;color:#F2F7FF;font-weight:600;
  margin:48px 0 18px;padding-left:14px;border-left:3px solid var(--primary);
  letter-spacing:.02em;
}
.article-body h3{font-size:19px;font-weight:600;color:#E9F1FF;margin:32px 0 14px}
.article-body h4{font-size:16.5px;font-weight:600;color:#E1EBFB;margin:24px 0 10px}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px}
.article-body a:hover{color:#7DF0DE;text-decoration-thickness:2px}
.article-body strong{color:#F0F6FF;font-weight:600}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:4px}
.article-body ul li,.article-body ol li{
  position:relative;padding-left:20px;margin-bottom:.6em;line-height:1.85;
}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.78em;width:6px;height:6px;border-radius:50%;
  background:var(--primary);opacity:.9;
}
.article-body ol{counter-reset:li}
.article-body ol li{counter-increment:li}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:0;
  font-size:13px;font-weight:600;color:var(--primary);line-height:1.9;
}
.article-body blockquote{
  margin:28px 0;padding:18px 20px;border-left:3px solid var(--primary);
  background:rgba(63,217,192,.06);border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:#C6D5EC;font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{margin:26px auto;border-radius:var(--r-img);box-shadow:var(--shadow-card)}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body pre{
  margin:24px 0;padding:18px 20px;border-radius:var(--r-sm);
  background:#080D20;border:1px solid var(--line);
  overflow-x:auto;font-size:14px;line-height:1.75;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:#B7C8E4;
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.9em;padding:2px 6px;border-radius:6px;
  background:rgba(124,107,255,.14);color:#CFC8FF;
}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body table{
  width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;
  border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;
}
.article-body th,.article-body td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line-soft)}
.article-body th{font-weight:600;color:#EDF4FF;background:rgba(22,32,60,.85)}
.article-body tbody tr:nth-child(even){background:rgba(22,32,60,.42)}
.article-body hr{border:0;height:1px;background:var(--line-soft);margin:36px 0}

.article-foot{
  max-width:760px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:16px;margin:44px 0 0;padding-top:24px;border-top:1px solid var(--line-soft);
}
.nav-pair{display:flex;gap:10px;flex-wrap:wrap}
.chip{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:var(--r-sm);
  font-size:13.5px;color:var(--muted);border:1px solid var(--line);background:rgba(22,32,60,.5);
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.chip:hover{color:#EAF1FF;border-color:rgba(63,217,192,.45);background:rgba(63,217,192,.08)}
.chip.is-disabled{opacity:.5;pointer-events:none}

.empty-state{
  max-width:760px;min-height:200px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:42px 24px;border:1px dashed rgba(150,180,255,.28);border-radius:var(--r-card);
  background:rgba(22,32,60,.35);text-align:center;
}
.empty-state .empty-ico{
  width:46px;height:46px;border-radius:50%;border:1.5px solid rgba(150,180,255,.35);
  display:grid;place-items:center;color:var(--muted);font-size:19px;
}
.empty-state p{font-size:14px;color:var(--muted)}

/* ===== sections ===== */
.section{padding:72px 0}
.section-alt{
  background:linear-gradient(180deg,rgba(16,24,48,.55),rgba(9,14,32,.15));
  border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);
}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-head h2{font-size:26px;letter-spacing:.02em}
.section-head p{font-size:14px;color:var(--muted);margin-top:8px;max-width:560px}
.more-link{font-size:14px;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.more-link:hover{gap:10px}

.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.glass-card{
  position:relative;display:flex;flex-direction:column;
  background:rgba(22,32,60,.55);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);backdrop-filter:blur(14px);overflow:hidden;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.glass-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(210,228,255,.32),transparent);
}
.glass-card:hover{transform:translateY(-3px);border-color:rgba(63,217,192,.4);box-shadow:var(--shadow-float)}
.card-thumb{position:relative;overflow:hidden;aspect-ratio:16/9;background:#0B1226}
.card-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s var(--ease)}
.glass-card:hover .card-thumb img{transform:scale(1.03)}
.card-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17px;line-height:1.45;color:#F1F6FF}
.card-body p{font-size:13.8px;line-height:1.7;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-tagline{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--dim)}
.card-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:13.5px;color:var(--primary);font-weight:500;
}
.card-link span{transition:transform .2s var(--ease)}
.glass-card:hover .card-link span{transform:translateX(4px)}

/* FAQ */
.faq-list{max-width:860px;border-top:1px solid var(--line-soft)}
.faq-item{border-bottom:1px solid var(--line-soft)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 4px;text-align:left;font-size:16px;font-weight:600;color:#EAF1FF;
  transition:background .2s var(--ease);
}
.faq-q:hover{background:rgba(150,180,255,.06)}
.faq-ico{
  flex:0 0 22px;width:22px;height:22px;border-radius:50%;
  border:1px solid rgba(63,217,192,.5);color:var(--primary);
  display:grid;place-items:center;font-size:14px;line-height:1;
  transition:transform .22s var(--ease);
}
.faq-item.is-open .faq-ico{transform:rotate(45deg)}
.faq-a{display:none;padding:0 4px 22px;border-top:1px solid var(--line-soft);margin-top:0}
.faq-item.is-open .faq-a{display:block;padding-top:16px}
.faq-a p{font-size:15px;line-height:1.8;color:var(--muted)}

/* CTA */
.cta-panel{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  border:1px solid rgba(63,217,192,.26);
  background-image:linear-gradient(100deg,rgba(9,15,34,.96) 0%,rgba(12,22,44,.9) 60%,rgba(16,30,54,.82) 100%),url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;
  padding:40px 42px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
  box-shadow:var(--shadow-card);
}
.cta-panel h2{font-size:24px;margin-bottom:10px}
.cta-panel p{font-size:14.5px;color:var(--muted);max-width:520px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* footer */
.footer{
  margin-top:auto;padding:56px 0 0;
  border-top:1px solid var(--line);
  background-image:radial-gradient(1px 1px at 15% 40%,rgba(180,205,255,.22),transparent 60%),
    radial-gradient(1px 1px at 62% 22%,rgba(180,205,255,.18),transparent 60%),
    radial-gradient(1px 1px at 88% 68%,rgba(180,205,255,.16),transparent 60%);
  background-repeat:no-repeat;background-size:100% 100%;
}
.footer-inner{padding-bottom:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr 1.4fr;gap:40px}
.footer-brand p{font-size:13.5px;color:var(--muted);line-height:1.8;margin-top:16px;max-width:300px}
.footer h4{font-size:14px;color:#E6EEFF;margin-bottom:14px;font-weight:600;letter-spacing:.04em}
.footer-links li{margin-bottom:10px;font-size:13.5px;color:var(--muted)}
.footer-links a{color:var(--muted)}
.footer-links a:hover{color:var(--primary)}
.footer-contact li{font-size:13.5px;color:var(--muted);margin-bottom:10px;line-height:1.7}
.footer-contact b{color:#C6D4EC;font-weight:500}
.sub-form{display:flex;gap:10px;flex-wrap:wrap}
.input{
  flex:1 1 150px;min-width:0;min-height:44px;padding:10px 14px;border-radius:var(--r-sm);
  background:rgba(16,24,48,.75);border:1px solid var(--line);color:var(--text);
  font-size:14px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.input::placeholder{color:var(--dim)}
.input:focus{outline:none;border-color:rgba(63,217,192,.65);box-shadow:0 0 0 3px rgba(63,217,192,.15)}
.input.is-error{border-color:var(--danger);box-shadow:0 0 0 3px rgba(255,107,107,.14)}
.form-msg{font-size:13px;margin-top:10px;min-height:18px;color:var(--primary)}
.form-msg.is-error{color:var(--danger)}
.form-note{font-size:12px;color:var(--dim);margin-top:6px}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  margin-top:44px;padding:20px 0 26px;border-top:1px solid var(--line-soft);
  font-size:12px;color:var(--dim);
}
.footer-bottom-links{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom-links a{color:var(--dim)}
.footer-bottom-links a:hover{color:var(--primary)}

/* ===== responsive ===== */
@media (max-width:1279px){
  .container{padding:0 32px}
  :root{--sidebar-w:200px}
}
@media (max-width:1023px){
  .layout{display:block}
  .sidebar{
    position:fixed;left:0;top:0;bottom:0;height:100%;
    transform:translateX(-100%);transition:transform .26s var(--ease);
    width:280px;flex:none;box-shadow:var(--shadow-float);
  }
  .sidebar.is-open{transform:translateX(0)}
  .topbar{display:flex}
  .article-hero{padding:32px 0 30px}
  .article-head h1{font-size:30px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:56px 0}
  .article-wrap{padding:40px 0 8px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .article-head h1{font-size:26px}
  .article-body{font-size:16.5px}
  .article-body h2{font-size:22px;margin-top:38px}
  .article-body h3{font-size:18px}
  .card-grid{grid-template-columns:1fr}
  .cta-panel{padding:30px 24px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .cta-panel h2{font-size:21px}
  .faq-q{font-size:15px;padding:17px 2px}
  .footer{padding-top:44px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .article-foot{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .section-head h2{font-size:22px}
  .article-head h1{font-size:23px}
  .badge-row{gap:8px}
  .meta-row{font-size:12px;gap:6px 12px}
  .sub-form{flex-direction:column}
  .sub-form .btn{width:100%}
  .brand-text strong{font-size:14px}
  .topbar .brand-text em{display:none}
}

/* roulang page: category1 */
:root{
  --bg:#070B1A;
  --panel:#101830;
  --panel-2:#16203C;
  --primary:#3FD9C0;
  --primary-dim:rgba(63,217,192,.12);
  --violet:#7C6BFF;
  --gold:#F5C36B;
  --light:#F3F6FB;
  --ink:#16203C;
  --ink-soft:#4A5A75;
  --text:#D8E2F2;
  --muted:#93A3BE;
  --disabled:#5B6A85;
  --line:rgba(150,180,255,.14);
  --line-soft:rgba(150,180,255,.10);
  --r-card:14px;
  --r-sm:10px;
  --r-img:12px;
  --shadow-card:0 18px 40px -20px rgba(0,10,40,.75);
  --shadow-pop:0 24px 60px -24px rgba(0,0,0,.8);
  --ease:cubic-bezier(.2,.6,.2,1);
  --side-w:240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease)}
a:hover{color:#6ff0da}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:.015em;color:#fff;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--violet);outline-offset:2px;border-radius:4px}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--primary);color:#04121a;padding:10px 18px;border-radius:0 0 var(--r-sm) 0;font-weight:600;
}
.skip-link:focus{left:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 48px}

/* ---------- 左侧导航 ---------- */
.layout{min-height:100vh}
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--side-w);z-index:80;
  display:flex;flex-direction:column;
  padding:28px 18px 24px;
  background:rgba(16,24,48,.92);
  border-right:1px solid var(--line);
  backdrop-filter:blur(12px);
  overflow-y:auto;
}
.brand-link{display:flex;align-items:center;gap:10px;color:#fff}
.brand-link:hover{color:#fff}
.brand-mark{
  flex:0 0 34px;width:34px;height:34px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-dim);border:1px solid rgba(63,217,192,.35);
  color:var(--primary);font-size:16px;font-weight:700;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:15px;font-weight:600;letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.04em;margin-top:3px}
.side-divider{height:1px;background:var(--line);margin:22px 0 16px}
.side-nav{display:flex;flex-direction:column;gap:4px}
.side-link{
  position:relative;display:flex;align-items:center;
  min-height:44px;padding:0 12px 0 16px;
  font-size:14.5px;color:var(--muted);border-radius:var(--r-sm);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.side-link:hover{background:rgba(150,180,255,.08);color:#eaf1ff}
.side-link.is-active{background:var(--primary-dim);color:#fff;font-weight:500}
.side-link.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(63,217,192,.8);
}
.side-actions{margin-top:auto;padding-top:24px;display:flex;flex-direction:column;gap:10px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:14.5px;font-weight:500;line-height:1;
  padding:13px 22px;border-radius:var(--r-sm);border:1px solid transparent;
  cursor:pointer;text-align:center;white-space:nowrap;
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-primary{background:var(--primary);color:#04121a;box-shadow:0 8px 24px -8px rgba(63,217,192,.55)}
.btn-primary:hover{background:#63e8d3;color:#04121a;transform:translateY(-1px);box-shadow:0 14px 32px -10px rgba(63,217,192,.65)}
.btn-primary:active{transform:none;box-shadow:0 4px 14px -8px rgba(63,217,192,.5)}
.btn-ghost{background:transparent;color:var(--primary);border-color:rgba(63,217,192,.42)}
.btn-ghost:hover{background:rgba(63,217,192,.1);color:#6ff0da;transform:translateY(-1px)}
.btn-ghost:active{transform:none}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none}
.btn-block{width:100%}

/* ---------- 内容区 / 顶部条 ---------- */
.content{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column}
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:70;
  align-items:center;justify-content:space-between;
  padding:0 20px;background:rgba(7,11,26,.94);
  border-bottom:1px solid var(--line);backdrop-filter:blur(12px);
}
.topbar .brand-text strong{font-size:14px}
.topbar .brand-text em{font-size:10.5px}
.burger{
  width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:rgba(22,32,60,.6);display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:5px;cursor:pointer;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.burger:hover{border-color:rgba(63,217,192,.5);background:rgba(63,217,192,.1)}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,6,16,.7);z-index:75;
  opacity:0;pointer-events:none;transition:opacity .22s var(--ease);
}
.drawer-mask.is-active{opacity:1;pointer-events:auto}
.drawer-close{
  position:absolute;top:16px;right:14px;width:34px;height:34px;border-radius:9px;
  border:1px solid var(--line);background:transparent;color:var(--muted);
  font-size:16px;line-height:1;cursor:pointer;
}
.drawer-close:hover{color:#fff;border-color:rgba(63,217,192,.5)}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;overflow:hidden;padding:76px 0 64px;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line-soft);
}
.page-head::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,26,.80),rgba(7,11,26,.95));
}
.page-head::after{
  content:"";position:absolute;inset:0;opacity:.75;pointer-events:none;
  background-image:
    radial-gradient(1px 1px at 12% 24%,rgba(255,255,255,.55),transparent 60%),
    radial-gradient(1px 1px at 32% 68%,rgba(255,255,255,.35),transparent 60%),
    radial-gradient(1px 1px at 58% 18%,rgba(255,255,255,.45),transparent 60%),
    radial-gradient(1px 1px at 77% 52%,rgba(255,255,255,.30),transparent 60%),
    radial-gradient(1px 1px at 90% 30%,rgba(255,255,255,.42),transparent 60%),
    radial-gradient(1px 1px at 45% 88%,rgba(255,255,255,.28),transparent 60%);
}
.page-head .container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:#4a5872}
.breadcrumb .current{color:#c6d4ea}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.06em;color:#cbc2ff;
  padding:4px 12px;border-radius:999px;
  background:rgba(124,107,255,.14);border:1px solid rgba(124,107,255,.4);
}
.page-head h1{
  font-size:38px;font-weight:700;margin:18px 0 18px;max-width:820px;letter-spacing:.01em;
}
.page-head .lead{font-size:16.5px;color:#b8c6dd;max-width:720px;line-height:1.85}
.head-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.head-actions .btn{min-width:150px}

/* ---------- 数据条 ---------- */
.stats-band{border-bottom:1px solid var(--line-soft);background:rgba(16,24,48,.55)}
.stats{display:grid;grid-template-columns:repeat(4,1fr)}
.stat-item{padding:30px 24px;position:relative;text-align:left}
.stat-item+.stat-item::before{
  content:"";position:absolute;left:0;top:26px;bottom:26px;width:1px;background:var(--line);
}
.stat-num{font-size:32px;font-weight:700;color:var(--gold);line-height:1.2;font-family:system-ui,Inter,sans-serif}
.stat-num small{font-size:15px;font-weight:600;margin-left:4px;color:var(--gold)}
.stat-label{font-size:13.5px;color:var(--muted);margin-top:6px}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;border-bottom:1px solid var(--line-soft)}
.section:last-of-type{border-bottom:0}
.section-head{max-width:680px;margin-bottom:44px}
.section-head h2{font-size:30px;font-weight:600}
.section-head h2::before{
  content:"";display:inline-block;width:3px;height:20px;border-radius:2px;
  background:var(--primary);margin-right:12px;vertical-align:-3px;
}
.section-head p{margin-top:14px;color:var(--muted);font-size:15.5px;line-height:1.85}

/* ---------- 交错图文 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split+.split{margin-top:72px}
.split.reverse .split-media{order:2}
.split-media{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card);aspect-ratio:4/3;background:var(--panel-2)}
.split-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.split-media:hover img{transform:scale(1.03)}
.split-index{
  font-family:system-ui,Inter,sans-serif;font-size:13px;letter-spacing:.16em;
  color:var(--primary);margin-bottom:12px;display:block;
}
.split-body h3{font-size:24px;margin-bottom:16px;font-weight:600}
.split-body p{color:var(--muted);font-size:15.5px;line-height:1.9}
.mini-list{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.mini-list li{position:relative;padding-left:20px;font-size:14.5px;color:#b9c7de;line-height:1.8}
.mini-list li::before{
  content:"";position:absolute;left:2px;top:11px;width:6px;height:6px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 8px rgba(63,217,192,.7);
}

/* ---------- 要点清单 ---------- */
.points-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 28px}
.point-item{
  display:flex;gap:16px;padding:22px 24px;border-radius:var(--r-card);
  background:rgba(22,32,60,.55);border:1px solid var(--line);
  backdrop-filter:blur(14px);position:relative;
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.point-item::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.28),transparent);
  border-radius:var(--r-card) var(--r-card) 0 0;
}
.point-item:hover{border-color:rgba(63,217,192,.4);transform:translateY(-3px)}
.point-num{
  flex:0 0 34px;width:34px;height:34px;border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-dim);color:var(--primary);
  font-family:system-ui,Inter,sans-serif;font-size:13.5px;font-weight:700;
}
.point-item h4{font-size:16px;font-weight:600;margin-bottom:5px;color:#fff}
.point-item p{font-size:14px;color:var(--muted);line-height:1.75}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:rgba(22,32,60,.5);overflow:hidden;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item:hover{background:rgba(22,32,60,.72);border-color:rgba(63,217,192,.35)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:20px 24px;font-size:16px;font-weight:600;color:#eef4ff;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  flex:0 0 22px;width:22px;height:22px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(63,217,192,.45);color:var(--primary);
  font-size:14px;line-height:1;transition:transform .22s var(--ease);
}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-body{padding:0 24px 22px;border-top:1px solid var(--line-soft);margin-top:0;padding-top:16px}
.faq-body p{font-size:15px;color:var(--muted);line-height:1.85}

/* ---------- 互链 / CTA ---------- */
.link-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.link-card{
  display:block;padding:30px 28px;border-radius:var(--r-card);
  background:rgba(22,32,60,.55);border:1px solid var(--line);
  position:relative;transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.link-card:hover{border-color:rgba(63,217,192,.5);transform:translateY(-3px);color:inherit}
.link-card .tag{
  display:inline-block;font-size:12px;padding:3px 10px;border-radius:10px;
  background:rgba(124,107,255,.14);border:1px solid rgba(124,107,255,.34);color:#cbc2ff;
}
.link-card h3{font-size:19px;margin:14px 0 10px}
.link-card p{font-size:14.5px;color:var(--muted);line-height:1.8}
.link-card .go{display:inline-flex;align-items:center;gap:6px;margin-top:18px;font-size:14px;color:var(--primary)}
.link-card:hover .go{color:#7ff2df}
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  border:1px solid rgba(63,217,192,.28);
  background:linear-gradient(120deg,rgba(22,32,60,.9),rgba(16,24,48,.9));
  padding:44px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--shadow-card);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(63,217,192,.18),transparent 70%);pointer-events:none;
}
.cta-band h2{font-size:26px;margin-bottom:10px}
.cta-band p{font-size:14.5px;color:var(--muted);max-width:520px;line-height:1.8}
.cta-band .btn{flex:0 0 auto}

/* ---------- 页脚 ---------- */
.footer{border-top:1px solid var(--line);background:rgba(10,16,32,.9);margin-top:auto;position:relative;overflow:hidden}
.footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:
    radial-gradient(1px 1px at 15% 30%,rgba(255,255,255,.30),transparent 60%),
    radial-gradient(1px 1px at 46% 74%,rgba(255,255,255,.22),transparent 60%),
    radial-gradient(1px 1px at 72% 22%,rgba(255,255,255,.26),transparent 60%),
    radial-gradient(1px 1px at 88% 62%,rgba(255,255,255,.20),transparent 60%);
}
.footer-inner{position:relative;z-index:1;padding-top:64px;padding-bottom:28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.85;margin-top:16px;max-width:300px}
.footer h4{font-size:14.5px;color:#eaf1ff;margin-bottom:16px;font-weight:600}
.footer-links{display:flex;flex-direction:column;gap:10px;font-size:14px}
.footer-links a{color:var(--muted)}
.footer-links a:hover{color:var(--primary)}
.footer-contact li{font-size:14px;color:var(--muted);line-height:1.8}
.footer-contact b{color:#c3d1e8;font-weight:500}
.sub-form{display:flex;gap:10px}
.input{
  flex:1 1 auto;min-width:0;
  background:rgba(22,32,60,.7);border:1px solid var(--line);
  border-radius:var(--r-sm);padding:12px 14px;font-size:14px;color:var(--text);
  font-family:inherit;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.input::placeholder{color:var(--disabled)}
.input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(63,217,192,.16)}
.input.is-error{border-color:#FF6B6B;box-shadow:0 0 0 3px rgba(255,107,107,.14)}
.form-msg{font-size:13px;margin-top:10px;min-height:18px;color:var(--primary)}
.form-msg.is-error{color:#FF6B6B}
.form-note{font-size:12.5px;color:var(--disabled);margin-top:4px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line-soft);margin-top:44px;padding-top:20px;
  font-size:12px;color:var(--disabled);
}
.footer-bottom-links{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom-links a{color:var(--disabled)}
.footer-bottom-links a:hover{color:var(--primary)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 32px}
  .page-head h1{font-size:34px}
  .section{padding:76px 0}
  .split{gap:40px}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;row-gap:36px}
  .footer-sub{grid-column:1 / -1}
}
@media (max-width:1023px){
  .sidebar{
    width:284px;transform:translateX(-100%);
    transition:transform .24s var(--ease);
    box-shadow:var(--shadow-pop);
  }
  .sidebar.is-open{transform:translateX(0)}
  .content{margin-left:0;padding-top:60px}
  .topbar{display:flex}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(3)::before,.stat-item:nth-child(1)::before{display:none}
  .stat-item:nth-child(odd)::before{display:none}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .page-head{padding:48px 0 44px}
  .page-head h1{font-size:28px;line-height:1.35}
  .page-head .lead{font-size:15.5px}
  .head-actions{flex-direction:column;align-items:stretch;gap:12px}
  .head-actions .btn{width:100%}
  .section{padding:56px 0}
  .section-head h2{font-size:22px}
  .section-head p{font-size:14.5px}
  .split{grid-template-columns:1fr;gap:26px}
  .split.reverse .split-media{order:0}
  .split+.split{margin-top:52px}
  .split-body h3{font-size:20px}
  .points-grid{grid-template-columns:1fr}
  .link-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px}
  .cta-band h2{font-size:21px}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-brand{grid-column:1 / -1}
  .footer-sub{grid-column:1 / -1}
  .footer-inner{padding-top:48px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .stat-num{font-size:26px}
}
@media (max-width:520px){
  .stats{grid-template-columns:1fr}
  .stat-item{padding:20px 8px}
  .stat-item::before{display:none}
  .stat-item+.stat-item{border-top:1px solid var(--line-soft)}
  .footer-grid{grid-template-columns:1fr}
  .sub-form{flex-direction:column}
  .sub-form .btn{width:100%}
  .breadcrumb{font-size:12px;gap:6px}
  .faq-item summary{padding:16px 18px;font-size:15px}
  .faq-body{padding:14px 18px 18px}
}

/* roulang page: category2 */
:root{
  --bg:#070B1A;
  --panel:#101830;
  --panel-2:#16203C;
  --primary:#3FD9C0;
  --primary-dim:rgba(63,217,192,.12);
  --violet:#7C6BFF;
  --gold:#F5C36B;
  --light:#F3F6FB;
  --light-text:#16203C;
  --light-sub:#4A5A75;
  --text:#D8E2F2;
  --muted:#93A3BE;
  --disabled:#5B6A85;
  --line:rgba(150,180,255,.14);
  --line-soft:rgba(150,180,255,.10);
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 18px 40px -20px rgba(0,10,40,.75);
  --shadow-lg:0 24px 60px -24px rgba(0,0,0,.8);
  --ease:cubic-bezier(.2,.6,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--primary);text-decoration:none;}
a:hover{color:#6ff0da;}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:.015em;font-weight:600;color:#EAF1FC;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--violet);outline-offset:2px;border-radius:4px;}

/* ---------- 布局骨架 ---------- */
.page{
  display:grid;
  grid-template-columns:240px minmax(0,1fr);
  min-height:100vh;
}
.main-wrap{min-width:0;display:flex;flex-direction:column;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 48px;
}

/* ---------- 侧栏 ---------- */
.sidebar{
  position:sticky;
  top:0;
  height:100vh;
  display:flex;
  flex-direction:column;
  background:var(--panel);
  border-right:1px solid var(--line);
  padding:24px 0 20px;
  z-index:50;
  overflow-y:auto;
  position:sticky;
}
.sidebar::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:radial-gradient(rgba(216,226,242,.22) 1px, transparent 1px);
  background-size:96px 96px;
  opacity:.5;
}
.side-head{
  position:relative;
  padding:0 20px 20px;
  border-bottom:1px solid var(--line-soft);
}
.brand-link{
  display:flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
}
.brand-mark{
  flex:0 0 auto;
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:11px;
  background:linear-gradient(150deg,rgba(63,217,192,.22),rgba(124,107,255,.18));
  border:1px solid rgba(63,217,192,.4);
  color:var(--primary);
  font-size:18px;
  font-weight:700;
  letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.35;}
.brand-text strong{
  font-size:15px;
  font-weight:600;
  color:#EAF1FC;
  letter-spacing:.02em;
}
.brand-text em{
  font-style:normal;
  font-size:12px;
  color:var(--muted);
  letter-spacing:.02em;
}
.side-nav{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:4px;
  padding:20px 12px;
  flex:1 1 auto;
}
.side-link{
  position:relative;
  display:flex;
  align-items:center;
  height:44px;
  padding:0 16px;
  border-radius:var(--radius-sm);
  color:var(--muted);
  font-size:14.5px;
  letter-spacing:.01em;
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.side-link:hover{
  color:#EAF1FC;
  background:rgba(150,180,255,.08);
}
.side-link.is-active{
  color:var(--primary);
  background:var(--primary-dim);
  font-weight:500;
}
.side-link.is-active::before{
  content:"";
  position:absolute;
  left:0;top:10px;bottom:10px;
  width:2px;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 12px rgba(63,217,192,.7);
}
.side-actions{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:20px;
  margin-top:24px;
  border-top:1px solid var(--line-soft);
}
.side-actions .btn{width:100%;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  font-size:15px;
  font-weight:500;
  letter-spacing:.02em;
  cursor:pointer;
  text-decoration:none;
  transition:transform .18s var(--ease),background-color .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--primary);
  color:#06131f;
  box-shadow:0 8px 24px -8px rgba(63,217,192,.5);
}
.btn-primary:hover{
  background:#5AE7D1;
  color:#06131f;
  transform:translateY(-1px);
  box-shadow:0 12px 30px -8px rgba(63,217,192,.62);
}
.btn-primary:active{transform:none;box-shadow:0 6px 16px -8px rgba(63,217,192,.5);}
.btn-primary:disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;}
.btn-ghost{
  background:transparent;
  border-color:rgba(63,217,192,.45);
  color:var(--primary);
}
.btn-ghost:hover{
  background:rgba(63,217,192,.1);
  color:#7BF2DE;
  border-color:rgba(63,217,192,.7);
}
.btn-ghost:active{background:rgba(63,217,192,.16);transform:none;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--primary);
  font-size:14px;
  text-decoration:underline;
  text-underline-offset:4px;
  text-decoration-thickness:1px;
  transition:color .18s var(--ease),text-underline-offset .18s var(--ease);
}
.link-arrow:hover{color:#7BF2DE;text-underline-offset:6px;}

/* ---------- 移动顶栏 ---------- */
.topbar{
  display:none;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  height:60px;
  padding:0 20px;
  background:rgba(16,24,48,.94);
  border-bottom:1px solid var(--line);
  position:sticky;
  top:0;
  z-index:45;
  backdrop-filter:blur(12px);
}
.topbar .brand-mark{width:32px;height:32px;font-size:15px;border-radius:9px;}
.topbar .brand-text strong{font-size:14px;}
.topbar .brand-text em{display:none;}
.nav-toggle{
  width:42px;height:42px;
  display:inline-flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:rgba(22,32,60,.6);
  cursor:pointer;
  transition:border-color .18s var(--ease),background-color .18s var(--ease);
}
.nav-toggle:hover{border-color:rgba(63,217,192,.5);background:rgba(63,217,192,.1);}
.nav-toggle span{display:block;width:18px;height:1.6px;background:#D8E2F2;border-radius:2px;}
.scrim{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(4,8,20,.7);
  backdrop-filter:blur(2px);
  z-index:55;
  opacity:0;
  transition:opacity .2s var(--ease);
}
.scrim.is-open{display:block;opacity:1;}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  padding:28px 0 0;
}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--primary);}
.crumbs .sep{color:#455166;}
.crumbs .current{color:#C3D0E6;}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;
  padding:28px 0 8px;
}
.head-grid{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:48px;
  align-items:end;
  padding:24px 0 40px;
  border-bottom:1px solid var(--line-soft);
}
.head-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--violet);
  padding:5px 12px;
  border-radius:999px;
  border:1px solid rgba(124,107,255,.4);
  background:rgba(124,107,255,.12);
  margin-bottom:20px;
}
h1{
  font-size:38px;
  font-weight:700;
  line-height:1.28;
  letter-spacing:.015em;
  color:#F1F6FF;
}
.head-lead{
  margin-top:20px;
  font-size:16px;
  line-height:1.85;
  color:var(--muted);
  max-width:640px;
}
.head-badge-wrap{
  display:flex;
  flex-direction:column;
  gap:16px;
  padding-bottom:6px;
}
.stat-badge{
  display:flex;
  align-items:center;
  gap:16px;
  padding:20px 22px;
  border-radius:var(--radius);
  background:rgba(22,32,60,.55);
  border:1px solid rgba(245,195,107,.35);
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px);
  position:relative;
  overflow:hidden;
}
.stat-badge::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,rgba(245,195,107,.8),rgba(245,195,107,0));
}
.stat-badge .num{
  font-size:34px;
  font-weight:700;
  line-height:1;
  color:var(--gold);
  font-variant-numeric:tabular-nums;
}
.stat-badge .txt{font-size:14px;line-height:1.6;color:var(--muted);}
.stat-badge .txt b{display:block;color:#EAF1FC;font-size:15px;font-weight:600;margin-bottom:2px;}
.head-note{font-size:13px;color:#7E8DA8;line-height:1.7;}

/* ---------- 板块通用 ---------- */
.section{padding:72px 0;}
.section-tight{padding:56px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.section-head h2{
  font-size:30px;
  font-weight:700;
  letter-spacing:.015em;
  position:relative;
  padding-left:16px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:8px;bottom:8px;
  width:3px;
  border-radius:3px;
  background:var(--primary);
}
.section-head p{margin-top:10px;padding-left:16px;font-size:14.5px;color:var(--muted);max-width:560px;}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;display:flex;flex-direction:column;}
.step{
  position:relative;
  padding:0 0 32px 84px;
  min-height:88px;
}
.step:last-child{padding-bottom:0;}
.step::before{
  content:"";
  position:absolute;
  left:23px;
  top:48px;
  bottom:0;
  width:1px;
  background:linear-gradient(180deg,rgba(63,217,192,.5),rgba(150,180,255,.12));
}
.step:last-child::before{display:none;}
.step-num{
  position:absolute;
  left:0;top:0;
  width:48px;height:48px;
  display:grid;place-items:center;
  border-radius:12px;
  background:rgba(22,32,60,.7);
  border:1px solid rgba(63,217,192,.35);
  color:var(--primary);
  font-size:15px;
  font-weight:600;
  font-variant-numeric:tabular-nums;
  letter-spacing:.04em;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.step:hover .step-num{
  border-color:rgba(63,217,192,.8);
  box-shadow:0 0 0 4px rgba(63,217,192,.08);
}
.step h3{
  font-size:19px;
  font-weight:600;
  color:#EAF1FC;
  margin-bottom:8px;
  padding-top:8px;
}
.step p{
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
  max-width:720px;
}
.step-tag{
  display:inline-flex;
  align-items:center;
  margin-left:10px;
  padding:2px 9px;
  border-radius:999px;
  font-size:12px;
  font-weight:400;
  color:var(--gold);
  background:rgba(245,195,107,.12);
  border:1px solid rgba(245,195,107,.28);
  vertical-align:middle;
}

/* ---------- 卡片网格 ---------- */
.grid-cards{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.card{
  display:flex;
  flex-direction:column;
  border-radius:var(--radius);
  background:rgba(22,32,60,.55);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px);
  overflow:hidden;
  position:relative;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,rgba(216,226,242,.35),rgba(216,226,242,0));
  z-index:2;
}
.card:hover{
  transform:translateY(-3px);
  border-color:rgba(63,217,192,.4);
  box-shadow:var(--shadow-lg);
}
.card-thumb{
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--panel);
}
.card-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .35s var(--ease);
}
.card:hover .card-thumb img{transform:scale(1.03);}
.card-body{
  padding:20px 20px 22px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1;
}
.card-body h3{font-size:17px;font-weight:600;color:#EAF1FC;}
.card-body p{font-size:14px;line-height:1.75;color:var(--muted);}
.card-meta{
  margin-top:auto;
  padding-top:6px;
  font-size:12.5px;
  color:#7E8DA8;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
}
.card-meta .dot{width:5px;height:5px;border-radius:50%;background:var(--primary);display:inline-block;margin-right:6px;vertical-align:middle;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:rgba(22,32,60,.5);
  overflow:hidden;
  transition:border-color .2s var(--ease),background-color .2s var(--ease);
}
.faq-item:hover{background:rgba(22,32,60,.75);border-color:rgba(150,180,255,.24);}
.faq-item.is-open{border-color:rgba(63,217,192,.4);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:20px 22px;
  background:none;
  border:0;
  color:#EAF1FC;
  font-size:16px;
  font-weight:600;
  text-align:left;
  cursor:pointer;
  transition:background-color .2s var(--ease);
}
.faq-q:hover{background:rgba(150,180,255,.06);}
.faq-icon{
  flex:0 0 auto;
  position:relative;
  width:20px;height:20px;
  transition:transform .22s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--primary);
  border-radius:2px;
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px;}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .24s var(--ease);
}
.faq-item.is-open .faq-a{max-height:480px;}
.faq-a-inner{
  padding:0 22px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
  border-top:1px solid var(--line-soft);
  padding-top:16px;
  margin-top:0;
}

/* ---------- CTA 横幅 ---------- */
.cta-band{
  position:relative;
  border-radius:18px;
  border:1px solid rgba(63,217,192,.28);
  background:linear-gradient(120deg,rgba(22,32,60,.92),rgba(16,24,48,.92));
  padding:44px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  overflow:hidden;
  box-shadow:var(--shadow);
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(216,226,242,.3) 1px, transparent 1px);
  background-size:88px 88px;
  opacity:.35;
  pointer-events:none;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-80px;top:-80px;
  width:280px;height:280px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(63,217,192,.14),transparent 70%);
  pointer-events:none;
}
.cta-band .cta-text{position:relative;z-index:1;max-width:640px;}
.cta-band h2{font-size:26px;font-weight:700;color:#F1F6FF;margin-bottom:10px;}
.cta-band p{font-size:14.5px;color:var(--muted);line-height:1.8;}
.cta-band .cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.footer{
  margin-top:auto;
  border-top:1px solid var(--line);
  background:#070B1A;
  position:relative;
  overflow:hidden;
}
.footer::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(216,226,242,.18) 1px, transparent 1px);
  background-size:110px 110px;
  opacity:.45;
  pointer-events:none;
}
.footer-inner{position:relative;padding-top:56px;padding-bottom:28px;}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:40px;
}
.footer-brand p{
  margin-top:16px;
  font-size:13.5px;
  line-height:1.85;
  color:#7E8DA8;
  max-width:320px;
}
.footer h4{
  font-size:14px;
  font-weight:600;
  color:#EAF1FC;
  margin-bottom:16px;
  letter-spacing:.03em;
}
.footer-links li{margin-bottom:10px;}
.footer-links a{
  font-size:13.5px;
  color:var(--muted);
  transition:color .18s var(--ease);
}
.footer-links a:hover{color:var(--primary);}
.footer-contact li{
  font-size:13.5px;
  color:var(--muted);
  margin-bottom:10px;
  line-height:1.7;
}
.footer-contact b{color:#C3D0E6;font-weight:500;margin-right:4px;}
.sub-form{display:flex;gap:10px;flex-wrap:wrap;}
.input{
  flex:1 1 160px;
  min-width:0;
  height:42px;
  padding:0 14px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:rgba(22,32,60,.7);
  color:var(--text);
  font-size:14px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease);
}
.input::placeholder{color:#7E8DA8;}
.input:focus{
  outline:none;
  border-color:rgba(63,217,192,.7);
  box-shadow:0 0 0 3px rgba(63,217,192,.14);
  background:rgba(22,32,60,.95);
}
.input.is-error{border-color:#FF6B6B;box-shadow:0 0 0 3px rgba(255,107,107,.14);}
.sub-form .btn{height:42px;padding:0 18px;font-size:14px;}
.form-msg{
  min-height:18px;
  margin-top:10px;
  font-size:13px;
  color:var(--primary);
}
.form-msg.is-error{color:#FF6B6B;}
.form-note{font-size:12px;color:#6C7A94;margin-top:6px;line-height:1.6;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-top:20px;
  border-top:1px solid var(--line-soft);
  font-size:12px;
  color:#6C7A94;
  flex-wrap:wrap;
}
.footer-bottom-links{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom-links a{color:#6C7A94;font-size:12px;}
.footer-bottom-links a:hover{color:var(--primary);}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .page{grid-template-columns:200px minmax(0,1fr);}
  .container{padding:0 32px;}
  .head-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .head-lead{max-width:none;}
  .grid-cards{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:1023px){
  .page{grid-template-columns:minmax(0,1fr);}
  .sidebar{
    position:fixed;
    top:0;left:0;bottom:0;
    width:280px;
    height:100vh;
    transform:translateX(-100%);
    transition:transform .24s var(--ease);
    z-index:60;
    box-shadow:0 0 60px rgba(0,0,0,.6);
  }
  .sidebar.is-open{transform:translateX(0);}
  .topbar{display:flex;}
  .side-actions .btn{height:48px;}
  .side-link{height:48px;font-size:15px;}
  h1{font-size:30px;}
  .section{padding:64px 0;}
  .section-head h2{font-size:26px;}
  .cta-band{padding:36px 32px;flex-direction:column;align-items:flex-start;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn{flex:1 1 auto;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  h1{font-size:28px;}
  .head-grid{padding:16px 0 32px;}
  .head-lead{font-size:15px;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px;}
  .section-head h2{font-size:23px;}
  .grid-cards{grid-template-columns:minmax(0,1fr);}
  .step{padding-left:64px;}
  .step-num{width:40px;height:40px;font-size:14px;border-radius:10px;}
  .step::before{left:19px;top:44px;}
  .step h3{font-size:17px;}
  .step p{font-size:14.5px;}
  .stat-badge{flex-direction:column;align-items:flex-start;gap:8px;}
  .faq-q{padding:18px 18px;font-size:15px;}
  .faq-a-inner{padding:14px 18px 18px;font-size:14.5px;}
  .cta-band{padding:28px 22px;border-radius:14px;}
  .cta-band h2{font-size:21px;}
  .cta-band .cta-actions{flex-direction:column;}
  .cta-band .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;padding-bottom:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .brand-text strong{font-size:13.5px;}
  .sub-form{flex-direction:column;}
  .sub-form .btn{width:100%;}
  .input{width:100%;}
  .crumbs{font-size:12.5px;padding-top:20px;}
  .head-eyebrow{font-size:11px;}
  .step{padding-left:58px;}
}