/* roulang page: index */
:root{
  --bg-0:#070C14;
  --bg-1:#0B1320;
  --bg-2:#101B2C;
  --bg-deep:#050910;
  --accent:#00D3B8;
  --accent-soft:rgba(0,211,184,.12);
  --accent-2:#6C5CE7;
  --amber:#F2A93B;
  --text:#E9EFF7;
  --muted:#A6B4C8;
  --dim:#6B7C93;
  --line:rgba(255,255,255,.08);
  --glass-line:rgba(255,255,255,.12);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --shadow:0 18px 40px -20px rgba(0,0,0,.75), inset 0 1px 0 rgba(255,255,255,.06);
  --ease:180ms ease-out;
  --bs-body-bg:#070C14;
  --bs-body-color:#E9EFF7;
  --bs-primary:#00D3B8;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-border-radius:16px;
  --bs-font-sans-serif:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background-color:var(--bg-0);
  background-image:
    linear-gradient(rgba(255,255,255,.024) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.024) 1px, transparent 1px);
  background-size:32px 32px;
  background-attachment:fixed;
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--accent);text-decoration:none;transition:color var(--ease);}
a:hover{color:#3ee6cf;}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.skip-link{
  position:absolute;left:16px;top:-60px;z-index:200;
  background:var(--accent);color:#04141A;padding:10px 18px;border-radius:999px;
  font-size:.875rem;font-weight:600;transition:top var(--ease);
}
.skip-link:focus{top:12px;color:#04141A;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media(min-width:1400px){.wrap{max-width:1280px;}}
@media(max-width:767px){.wrap{padding:0 16px;}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:.9375rem;font-weight:600;line-height:1;
  height:48px;padding:0 28px;border-radius:999px;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;text-decoration:none;
  transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease),color var(--ease),border-color var(--ease),filter var(--ease);
}
.btn--primary{
  background:var(--accent);color:#04141A;
  box-shadow:0 10px 30px -14px rgba(0,211,184,.85), inset 0 1px 0 rgba(255,255,255,.25);
}
.btn--primary:hover{color:#04141A;transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 16px 40px -12px rgba(0,211,184,.95);}
.btn--primary:active{transform:translateY(1px);}
.btn--ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--text);}
.btn--ghost:hover{background:rgba(255,255,255,.08);color:var(--text);transform:translateY(-1px);}
.btn--ghost:active{transform:translateY(1px);}
.btn--sm{height:40px;padding:0 20px;font-size:.875rem;}
.btn--md{height:44px;padding:0 24px;font-size:.9375rem;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.9375rem;font-weight:600;color:var(--accent);
  position:relative;padding-bottom:2px;
}
.link-more::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--accent);
  transition:width var(--ease);
}
.link-more:hover::after{width:100%;}

/* ============ 头部 ============ */
.brandbar{position:relative;z-index:70;border-bottom:1px solid var(--line);}
.brandbar-in{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:1.0625rem;letter-spacing:-.01em;}
.logo:hover{color:var(--text);}
.logo-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  border:1.5px solid rgba(0,211,184,.55);
  display:grid;place-items:center;background:rgba(0,211,184,.07);
}
.logo-mark svg{display:block;}
.logo-text b{color:var(--accent);font-weight:700;}
.brand-tools{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;border-radius:999px;border:1px solid var(--line);
  background:rgba(255,255,255,.03);color:var(--muted);
  display:grid;place-items:center;cursor:pointer;transition:all var(--ease);
}
.icon-btn:hover{color:var(--text);border-color:rgba(255,255,255,.2);background:rgba(255,255,255,.07);}
.lang-switch{font-size:.8125rem;color:var(--dim);white-space:nowrap;}
.search-panel{
  position:absolute;left:0;right:0;top:100%;
  background:rgba(9,15,24,.96);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--glass-line);
  padding:14px 0;z-index:80;
}
.search-panel .wrap{display:flex;gap:10px;}
.search-panel input{
  flex:1;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);color:var(--text);padding:0 16px;font-size:.9375rem;
}
.search-panel input::placeholder{color:var(--dim);}
.search-panel input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px rgba(0,211,184,.25);}
.nav-burger{display:none;}

.channelbar{
  position:sticky;top:0;z-index:60;
  background:rgba(7,12,20,.86);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
}
.channel-list{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
.channel-list::-webkit-scrollbar{display:none;}
.channel-list a{
  display:block;position:relative;padding:14px 14px;
  font-size:.9375rem;font-weight:500;color:var(--muted);white-space:nowrap;
  transition:color var(--ease);
}
.channel-list a:hover{color:var(--text);}
.channel-list a.active{color:var(--text);}
.channel-list a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;
  border-radius:2px;background:var(--accent);box-shadow:0 0 12px rgba(0,211,184,.9);
}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,7,12,.7);z-index:90;
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:290px;max-width:86vw;z-index:95;
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02)),#0A111C;
  border-left:1px solid var(--glass-line);
  backdrop-filter:blur(14px) saturate(120%);
  transform:translateX(100%);transition:transform 220ms ease-out;
  display:flex;flex-direction:column;padding:20px;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line);}
.drawer-title{font-size:.9375rem;font-weight:700;}
.drawer-close{width:36px;height:36px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--muted);display:grid;place-items:center;cursor:pointer;}
.drawer-nav{margin-top:12px;display:flex;flex-direction:column;}
.drawer-nav a{
  height:48px;display:flex;align-items:center;color:var(--muted);font-size:.9375rem;
  border-bottom:1px solid var(--line);transition:color var(--ease),padding-left var(--ease);
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--accent);padding-left:6px;}
.drawer-cta{margin-top:auto;}

/* ============ Hero ============ */
.hero{position:relative;padding:76px 0 88px;overflow:hidden;}
.hero::before{
  content:"";position:absolute;left:-140px;top:-120px;width:620px;height:620px;
  background:radial-gradient(circle,rgba(0,211,184,.12),transparent 68%);
  filter:blur(120px);pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:52px;align-items:center;}
.badge{
  display:inline-flex;align-items:center;gap:8px;height:24px;padding:0 12px;
  border-radius:999px;font-size:.75rem;font-weight:600;
  background:var(--accent-soft);color:var(--accent);border:1px solid rgba(0,211,184,.28);
}
.badge--neutral{background:rgba(255,255,255,.06);color:var(--muted);border-color:rgba(255,255,255,.1);}
.badge--purple{background:rgba(108,92,231,.12);color:#A99BFF;border-color:rgba(108,92,231,.35);}
.hero h1{
  font-size:clamp(2rem,4.2vw,3.25rem);line-height:1.15;letter-spacing:-.01em;font-weight:700;
  margin:20px 0 18px;
}
.hero h1 em{font-style:normal;color:var(--accent);}
.hero-sub{font-size:1.125rem;line-height:1.8;color:var(--muted);max-width:600px;}
.hero-sub + .hero-sub{margin-top:6px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.trust-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:26px;font-size:.8125rem;color:var(--dim);}
.trust-row li{display:flex;align-items:center;gap:14px;}
.trust-row li + li::before{content:"";width:1px;height:12px;background:rgba(255,255,255,.16);display:block;}
.hero-visual{position:relative;}
.hero-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  aspect-ratio:16/10;background:var(--bg-2);border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.hero-media img{width:100%;height:100%;object-fit:cover;opacity:.92;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(200deg,rgba(0,211,184,.16),transparent 55%),
    linear-gradient(0deg,rgba(7,12,20,.68),transparent 60%);
  pointer-events:none;
}
.hero-media-grid{
  position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:28px 28px;opacity:.7;mask-image:linear-gradient(160deg,rgba(0,0,0,.9),transparent 70%);
}
.hero-glass{
  position:absolute;right:-14px;bottom:-26px;width:230px;
  border-radius:var(--r-md);padding:14px 16px;
  background:linear-gradient(160deg,rgba(255,255,255,.09),rgba(255,255,255,.02));
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:0 18px 40px -22px rgba(0,0,0,.9);
}
.hero-glass-row{display:flex;align-items:center;gap:8px;font-size:.8125rem;color:var(--muted);padding:4px 0;}
.hero-glass-row b{margin-left:auto;color:var(--text);font-variant-numeric:tabular-nums;font-size:.8125rem;}
.dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px rgba(0,211,184,.9);flex:0 0 7px;}
.dot--alt{background:var(--amber);box-shadow:0 0 8px rgba(242,169,59,.8);}

/* ============ 通用板块 ============ */
.section{padding:96px 0;}
.section--tint{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{max-width:720px;margin-bottom:40px;}
.sec-head h2{font-size:clamp(1.5rem,2.4vw,2.125rem);line-height:1.25;margin-bottom:12px;}
.sec-head p{color:var(--muted);font-size:1.0625rem;line-height:1.8;}
.sec-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}

/* 痛点卡 */
.pain-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.pain-card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow);transition:transform var(--ease),border-color var(--ease);
}
.pain-card:hover{transform:translateY(-2px);border-color:rgba(255,255,255,.18);}
.pain-num{font-size:.8125rem;font-weight:700;color:var(--accent);letter-spacing:.08em;font-variant-numeric:tabular-nums;}
.pain-card h3{font-size:1.125rem;margin:10px 0 8px;line-height:1.4;}
.pain-card p{font-size:.9375rem;color:var(--muted);line-height:1.8;}

/* 解决方案交替块 */
.anchor-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:44px;}
.anchor-bar a{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  font-size:.875rem;color:var(--muted);border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:all var(--ease);
}
.anchor-bar a:hover{color:var(--accent);border-color:rgba(0,211,184,.4);background:rgba(0,211,184,.07);}
.sol-block{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:40px 0;}
.sol-block + .sol-block{border-top:1px solid var(--line);}
.sol-block.reverse .sol-text{order:2;}
.sol-block.reverse .sol-media{order:1;}
.sol-text h3{font-size:1.5rem;line-height:1.35;margin:14px 0 14px;}
.sol-text p{color:var(--muted);font-size:1rem;line-height:1.9;margin-bottom:12px;}
.sol-media{
  position:relative;border-radius:var(--r-md);overflow:hidden;aspect-ratio:4/3;
  background:var(--bg-2);border:1px solid var(--line);box-shadow:var(--shadow);
}
.sol-media img{width:100%;height:100%;object-fit:cover;transition:transform 260ms ease-out;}
.sol-media:hover img{transform:scale(1.03);}

/* 数据带 */
.stat-band{background:var(--bg-deep);border-top:1px solid var(--line);border-bottom:1px solid var(--line);position:relative;overflow:hidden;}
.stat-band::before{
  content:"";position:absolute;right:-180px;bottom:-200px;width:560px;height:560px;
  background:radial-gradient(circle,rgba(0,211,184,.1),transparent 70%);
  filter:blur(120px);pointer-events:none;
}
.stat-grid{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat{padding:22px 0;border-left:1px solid var(--line);padding-left:24px;}
.stat:first-child{border-left:none;padding-left:0;}
.stat-num{font-size:clamp(2.125rem,3.4vw,2.75rem);line-height:1;font-weight:700;color:var(--text);font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.stat-num span{font-size:1rem;color:var(--dim);font-weight:600;margin-left:6px;}
.stat p{margin-top:10px;font-size:.875rem;color:var(--muted);line-height:1.7;}
.bar-group{margin-top:44px;display:grid;gap:18px;max-width:760px;position:relative;}
.bar-row{display:grid;grid-template-columns:110px 1fr 52px;align-items:center;gap:14px;font-size:.8125rem;color:var(--muted);}
.bar-track{height:6px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden;}
.bar-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--accent),rgba(0,211,184,0));}
.bar-val{text-align:right;color:var(--text);font-variant-numeric:tabular-nums;}

/* 证言 */
.testi-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.testi-card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--shadow);position:relative;transition:transform var(--ease),border-color var(--ease);
}
.testi-card:hover{transform:translateY(-2px);border-color:rgba(255,255,255,.18);}
.testi-quote{font-size:2.5rem;line-height:1;color:rgba(0,211,184,.35);font-family:Georgia,serif;}
.testi-card p{margin:8px 0 22px;color:var(--muted);font-size:1rem;line-height:1.9;}
.testi-who{display:flex;align-items:center;gap:12px;border-top:1px solid var(--line);padding-top:18px;}
.avatar{
  width:44px;height:44px;border-radius:50%;flex:0 0 44px;display:grid;place-items:center;
  background:rgba(0,211,184,.12);border:1px solid rgba(0,211,184,.3);
  color:var(--accent);font-weight:700;font-size:1rem;
}
.testi-who b{display:block;font-size:.9375rem;color:var(--text);}
.testi-who span{font-size:.8125rem;color:var(--dim);}
.partner-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px;}
.partner-row span{
  font-size:.8125rem;color:var(--dim);border:1px dashed rgba(255,255,255,.12);
  border-radius:999px;padding:6px 16px;
}

/* 资讯列表 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow);transition:transform var(--ease),border-color var(--ease);
  display:flex;flex-direction:column;
}
.news-card:hover{transform:translateY(-2px);border-color:rgba(255,255,255,.18);}
.news-card a{color:inherit;display:flex;flex-direction:column;height:100%;}
.news-card a:hover{color:inherit;}
.news-thumb{position:relative;aspect-ratio:16/9;background:var(--bg-1);overflow:hidden;}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 220ms ease-out;opacity:.9;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:20px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-body h3{font-size:1.0625rem;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body p{font-size:.875rem;color:var(--muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:8px;font-size:.8125rem;color:var(--dim);font-variant-numeric:tabular-nums;}
.news-card.is-feature{grid-column:span 2;display:block;}
.news-card.is-feature a{display:grid;grid-template-columns:1fr 1fr;}
.news-card.is-feature .news-thumb{aspect-ratio:auto;height:100%;min-height:240px;}
.news-card.is-feature .news-body{padding:26px 28px;}
.news-card.is-feature h3{font-size:1.25rem;}
.empty-state{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  border:1px dashed rgba(255,255,255,.14);border-radius:var(--r-lg);background:rgba(255,255,255,.02);
  text-align:center;padding:32px;
}
.empty-state svg{color:var(--dim);}
.empty-state p{color:var(--muted);font-size:.9375rem;}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:860px;}
.faq-item{border:1px solid var(--line);border-radius:var(--r-md);background:var(--bg-2);overflow:hidden;transition:border-color var(--ease);}
.faq-item.open{border-color:rgba(0,211,184,.35);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 22px;background:transparent;border:0;color:var(--text);
  font-size:1rem;font-weight:600;text-align:left;cursor:pointer;line-height:1.6;
}
.faq-q:hover{color:var(--accent);}
.faq-icon{position:relative;width:20px;height:20px;flex:0 0 20px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--accent);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform var(--ease),opacity var(--ease);
}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease-out;background:rgba(0,0,0,.22);}
.faq-a-inner{padding:0 22px 20px;border-left:3px solid var(--accent);margin-left:0;}
.faq-a p{color:var(--muted);font-size:.9375rem;line-height:1.9;}

/* CTA */
.cta-band{padding:0 0 96px;}
.cta-panel{
  position:relative;border-radius:24px;padding:44px;
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px) saturate(120%);
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;
  box-shadow:0 18px 40px -20px rgba(0,0,0,.75);
  overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;left:-100px;bottom:-160px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(0,211,184,.14),transparent 70%);filter:blur(90px);
}
.cta-copy h2{font-size:clamp(1.375rem,2.2vw,1.875rem);line-height:1.35;margin-bottom:12px;position:relative;}
.cta-copy p{color:var(--muted);font-size:.9375rem;line-height:1.85;position:relative;}
.cta-form{position:relative;display:grid;gap:14px;}
.form-field{display:grid;gap:6px;}
.form-field label{font-size:.875rem;color:var(--muted);}
.form-field input{
  height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);color:var(--text);
  padding:0 14px;font-size:.9375rem;transition:border-color var(--ease),box-shadow var(--ease);
}
.form-field input::placeholder{color:var(--dim);}
.form-field input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px rgba(0,211,184,.22);}

/* 页脚 */
.site-footer{border-top:1px solid var(--line);background:var(--bg-1);position:relative;}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,211,184,.6),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding:64px 0 44px;}
.footer-brand .logo{margin-bottom:14px;}
.footer-brand p{color:var(--dim);font-size:.875rem;line-height:1.9;max-width:280px;}
.footer-col h4{font-size:.9375rem;margin-bottom:16px;color:var(--text);}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{color:var(--dim);font-size:.875rem;}
.footer-col a:hover{color:var(--accent);}
.footer-col p{color:var(--dim);font-size:.875rem;line-height:1.9;}
.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:.8125rem;color:var(--dim);
}
.footer-bottom span{color:var(--dim);}

/* ============ 响应式 ============ */
@media(max-width:1199px){
  .hero-grid{gap:40px;}
  .pain-grid{grid-template-columns:repeat(2,1fr);}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:16px;}
  .stat:nth-child(3){border-left:none;padding-left:0;}
}
@media(max-width:991px){
  .section{padding:72px 0;}
  .hero{padding:56px 0 72px;}
  .hero-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .sol-block{grid-template-columns:1fr;gap:28px;padding:32px 0;}
  .sol-block.reverse .sol-text,.sol-block.reverse .sol-media{order:initial;}
  .testi-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .news-card.is-feature{grid-column:span 2;}
  .news-card.is-feature a{grid-template-columns:1fr;}
  .news-card.is-feature .news-thumb{aspect-ratio:16/9;min-height:0;}
  .cta-panel{grid-template-columns:1fr;gap:28px;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px;}
  .brand-tools .lang-switch{display:none;}
}
@media(max-width:767px){
  .brandbar-in{height:60px;}
  .logo{font-size:.9375rem;}
  .logo-mark{width:30px;height:30px;flex:0 0 30px;}
  .brand-tools .btn{display:none;}
  .nav-burger{display:grid;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-visual{margin-top:8px;}
  .hero-glass{position:static;width:100%;margin-top:14px;}
  .pain-grid{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:1fr 1fr;}
  .stat{border-left:none;padding-left:0;padding:12px 0;}
  .bar-row{grid-template-columns:88px 1fr 46px;}
  .news-grid{grid-template-columns:1fr;}
  .news-card.is-feature{grid-column:span 1;}
  .cta-band{padding-bottom:64px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:6px;}
}
@media(max-width:520px){
  h1{font-size:1.75rem;}
  .hero-sub{font-size:1rem;}
  .hero-actions .btn{width:100%;}
  .stat-num{font-size:1.875rem;}
  .faq-q{font-size:.9375rem;padding:12px 16px;}
  .faq-a-inner{padding:0 16px 16px;}
  .cta-panel{padding:24px;}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --bg-0:#070C14;
  --bg-1:#0B1320;
  --bg-2:#101B2C;
  --accent:#00D3B8;
  --accent-soft:rgba(0,211,184,.12);
  --violet:#6C5CE7;
  --amber:#F2A93B;
  --text:#E9EFF7;
  --text-2:#A6B4C8;
  --text-3:#6B7C93;
  --line:rgba(255,255,255,.08);
  --glass-line:rgba(255,255,255,.12);
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-card:0 18px 40px -20px rgba(0,0,0,.75), inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-soft:0 10px 26px -18px rgba(0,0,0,.9);
  --ease:180ms ease-out;
  --font-cn:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --bs-body-bg:var(--bg-0);
  --bs-body-color:var(--text);
  --bs-primary:var(--accent);
  --bs-border-color:var(--line);
  --bs-border-radius:var(--radius-sm);
  --bs-font-sans-serif:var(--font-cn);
  --bs-link-color:var(--accent);
  --bs-link-hover-color:#3ae6cf;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:1rem;
  line-height:1.9;
  color:var(--text);
  background-color:var(--bg-0);
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
  background-size:32px 32px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--accent);text-decoration:none;transition:color var(--ease);}
a:hover{color:#3ae6cf;}
p{margin:0 0 16px;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--text);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:999;
  background:var(--accent);color:#04141A;padding:10px 18px;border-radius:0 0 12px 0;font-weight:600;
}
.skip-link:focus{left:0;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1400px){.wrap{max-width:1280px;}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(7,12,20,.82);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
}
.brandbar{position:relative;}
.brandbar-in{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;height:72px;
}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);}
.logo:hover{color:var(--text);}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(0,211,184,.34);
  background:linear-gradient(160deg,rgba(0,211,184,.16),rgba(108,92,231,.10));
  box-shadow:0 0 18px -8px rgba(0,211,184,.7);
}
.logo-text{font-size:1.0625rem;font-weight:600;letter-spacing:.01em;}
.logo-text b{color:var(--accent);font-weight:700;}
.brand-tools{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.03);
  color:var(--text-2);cursor:pointer;transition:all var(--ease);
}
.icon-btn:hover{color:var(--text);border-color:var(--glass-line);background:rgba(255,255,255,.07);}
.icon-btn:active{transform:translateY(1px);}
.lang-switch{font-size:.8125rem;color:var(--text-3);letter-spacing:.02em;}
.nav-burger{display:none;}
.search-panel{border-top:1px solid var(--line);background:rgba(11,19,32,.96);}
.search-panel .wrap{display:flex;gap:12px;padding-top:14px;padding-bottom:14px;}
.search-panel input{
  flex:1;height:44px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--text);padding:0 16px;font-size:.9375rem;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.search-panel input::placeholder{color:var(--text-3);}
.search-panel input:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(0,211,184,.16);
}
.channelbar{border-top:1px solid var(--line);}
.channel-list{display:flex;align-items:stretch;gap:8px;height:52px;overflow-x:auto;scrollbar-width:none;}
.channel-list::-webkit-scrollbar{display:none;}
.channel-list li{display:flex;}
.channel-list a{
  position:relative;display:inline-flex;align-items:center;
  padding:0 14px;font-size:.9375rem;font-weight:500;color:var(--text-2);
  white-space:nowrap;transition:color var(--ease);
}
.channel-list a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:var(--accent);border-radius:2px;opacity:0;
  box-shadow:0 0 12px 1px rgba(0,211,184,.6);transition:opacity var(--ease);
}
.channel-list a:hover{color:var(--text);}
.channel-list a.active{color:var(--text);font-weight:600;}
.channel-list a.active::after{opacity:1;}

/* ---------- Drawer ---------- */
.drawer{position:fixed;inset:0;z-index:200;opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;}
.drawer.open{opacity:1;visibility:visible;}
.drawer-backdrop{position:absolute;inset:0;background:rgba(3,7,13,.72);}
.drawer-panel{
  position:absolute;top:0;right:0;width:min(330px,88vw);height:100%;
  background:var(--bg-1);border-left:1px solid var(--glass-line);
  padding:20px;display:flex;flex-direction:column;gap:18px;
  transform:translateX(100%);transition:transform .28s ease-out;
  overflow-y:auto;
}
.drawer.open .drawer-panel{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-list{display:flex;flex-direction:column;gap:4px;}
.drawer-list a{
  display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:var(--radius-sm);
  color:var(--text-2);font-size:.9375rem;border:1px solid transparent;
}
.drawer-list a:hover,.drawer-list a.active{color:var(--text);background:rgba(255,255,255,.05);border-color:var(--line);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;border:1px solid transparent;font-weight:600;
  text-decoration:none;cursor:pointer;white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn--primary{
  background:var(--accent);color:#04141A;
  box-shadow:0 0 0 0 rgba(0,211,184,.45),0 10px 24px -14px rgba(0,211,184,.9);
}
.btn--primary:hover{
  color:#04141A;transform:translateY(-1px);filter:brightness(1.06);
  box-shadow:0 0 0 4px rgba(0,211,184,.14),0 16px 34px -14px rgba(0,211,184,.85);
}
.btn--primary:active{transform:translateY(1px);}
.btn--ghost{
  background:transparent;border-color:rgba(255,255,255,.18);color:var(--text);
}
.btn--ghost:hover{background:rgba(255,255,255,.08);color:var(--text);transform:translateY(-1px);}
.btn--ghost:active{transform:translateY(1px);}
.btn--sm{height:32px;padding:0 16px;font-size:.8125rem;}
.btn--md{height:40px;padding:0 20px;font-size:.9375rem;}
.btn--lg{height:48px;padding:0 28px;font-size:1rem;}
.btn--block{width:100%;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:.9375rem;font-weight:600;
  color:var(--accent);position:relative;
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;
  background:var(--accent);transition:width var(--ease);
}
.text-link:hover::after{width:100%;}

/* ---------- Chips ---------- */
.chip{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:999px;font-size:.75rem;font-weight:600;line-height:1;
  letter-spacing:.02em;border:1px solid transparent;white-space:nowrap;
}
.chip--accent{background:var(--accent-soft);color:var(--accent);border-color:rgba(0,211,184,.28);}
.chip--muted{background:rgba(255,255,255,.08);color:var(--text-2);}
.chip--violet{background:rgba(108,92,231,.14);color:#A79BFF;border-color:rgba(108,92,231,.34);}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:56px 0 48px;border-bottom:1px solid var(--line);}
.hero::before{
  content:"";position:absolute;top:-180px;right:-140px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(0,211,184,.12),transparent 68%);
  filter:blur(120px);pointer-events:none;
}
.hero-in{position:relative;z-index:1;max-width:840px;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:.8125rem;color:var(--text-3);margin-bottom:16px;
}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:rgba(255,255,255,.2);}
.breadcrumb .current{color:var(--text-2);}
.hero h1{
  font-size:clamp(2rem,4.2vw,3.25rem);line-height:1.15;letter-spacing:-.01em;
  margin:16px 0 18px;
}
.hero-sub{
  font-size:1.0625rem;line-height:1.8;color:var(--text-2);
  max-width:40em;margin-bottom:26px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.tag-link{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.03);
  font-size:.875rem;color:var(--text-2);transition:all var(--ease);
}
.tag-link:hover{color:var(--text);border-color:rgba(0,211,184,.42);background:rgba(0,211,184,.08);transform:translateY(-1px);}

/* ---------- Section base ---------- */
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section-head{margin-bottom:32px;max-width:44em;}
.section-head h2{
  font-size:clamp(1.5rem,2.4vw,2.125rem);line-height:1.25;margin-bottom:12px;
}
.section-head p{color:var(--text-2);font-size:1rem;margin:0;}
.section--alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

/* ---------- Entry layout ---------- */
.entry-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:40px;align-items:start;}
.entry-aside{position:sticky;top:150px;}
.entry-aside h3{font-size:.8125rem;letter-spacing:.14em;color:var(--text-3);font-weight:600;margin-bottom:14px;text-transform:uppercase;}
.anchor-nav{display:flex;flex-direction:column;gap:2px;border-left:2px solid var(--line);padding-left:0;}
.anchor-nav a{
  display:flex;align-items:center;gap:10px;padding:10px 14px;
  font-size:.9375rem;color:var(--text-2);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  border-left:2px solid transparent;margin-left:-2px;transition:all var(--ease);
}
.anchor-nav a span.num{font-size:.75rem;color:var(--text-3);font-variant-numeric:tabular-nums;}
.anchor-nav a:hover{color:var(--text);background:rgba(255,255,255,.04);border-left-color:rgba(0,211,184,.5);}
.anchor-nav a.is-active{color:var(--accent);border-left-color:var(--accent);background:rgba(0,211,184,.07);}
.aside-card{
  margin-top:24px;padding:20px;border-radius:var(--radius-md);
  background:var(--bg-2);border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.aside-card h4{font-size:1rem;margin-bottom:8px;}
.aside-card p{font-size:.875rem;color:var(--text-2);margin-bottom:16px;}

.entry-list{display:flex;flex-direction:column;gap:20px;}
.entry-item{
  display:grid;grid-template-columns:56px minmax(0,1fr) 190px;gap:24px;align-items:center;
  padding:24px;border-radius:var(--radius-lg);
  background:var(--bg-2);border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
  scroll-margin-top:150px;
}
.entry-item:hover{transform:translateY(-2px);border-color:rgba(0,211,184,.34);box-shadow:0 22px 46px -22px rgba(0,0,0,.85),inset 0 1px 0 rgba(255,255,255,.08);}
.entry-index{
  font-size:1.5rem;font-weight:700;line-height:1;color:var(--accent);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.entry-body h3{font-size:1.25rem;line-height:1.4;margin-bottom:8px;}
.entry-body p{font-size:.9375rem;color:var(--text-2);margin-bottom:14px;line-height:1.8;}
.entry-thumb{
  border-radius:var(--radius-md);overflow:hidden;aspect-ratio:4/3;background:var(--bg-1);
  border:1px solid var(--line);
}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease);}
.entry-item:hover .entry-thumb img{transform:scale(1.03);}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  border-radius:var(--radius-md);background:var(--bg-2);
  border:1px solid var(--line);overflow:hidden;transition:border-color var(--ease);
}
.faq-item:hover{border-color:rgba(255,255,255,.16);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;min-height:56px;padding:16px 24px;background:transparent;border:0;
  color:var(--text);font-size:1rem;font-weight:600;text-align:left;cursor:pointer;
  position:relative;transition:color var(--ease);
}
.faq-q::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  background:var(--accent);opacity:0;transition:opacity var(--ease);border-radius:0 3px 3px 0;
}
.faq-item.open .faq-q::before{opacity:1;}
.faq-q:hover{color:#3ae6cf;}
.faq-icon{position:relative;width:20px;height:20px;flex:0 0 20px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--accent);border-radius:2px;
  transition:transform var(--ease),opacity var(--ease);
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px;}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-a{display:none;padding:0 24px 22px;background:rgba(0,0,0,.16);}
.faq-item.open .faq-a{display:block;}
.faq-a p{font-size:.9375rem;color:var(--text-2);line-height:1.85;margin:0;}
.faq-a p + p{margin-top:10px;}

/* ---------- CTA ---------- */
.cta-section{padding:0 0 96px;}
.cta-panel{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:36px;align-items:center;
  padding:44px;border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--glass-line);
  box-shadow:0 24px 60px -30px rgba(0,0,0,.9),inset 0 1px 0 rgba(255,255,255,.1);
}
.cta-panel::after{
  content:"";position:absolute;right:-100px;bottom:-140px;width:380px;height:380px;
  background:radial-gradient(circle,rgba(0,211,184,.14),transparent 70%);
  filter:blur(90px);pointer-events:none;
}
.cta-panel h2{font-size:clamp(1.375rem,2vw,1.75rem);line-height:1.3;margin-bottom:10px;position:relative;z-index:1;}
.cta-panel p{color:var(--text-2);font-size:.9375rem;margin:0;max-width:36em;position:relative;z-index:1;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1;}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--bg-1);border-top:1px solid var(--line);
  position:relative;padding:64px 0 28px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,211,184,.5),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;}
.footer-brand p{font-size:.875rem;color:var(--text-3);line-height:1.8;margin:16px 0 0;max-width:26em;}
.footer-col h4{font-size:.875rem;color:var(--text);margin-bottom:14px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:.875rem;color:var(--text-2);}
.footer-col a:hover{color:var(--accent);}
.footer-col p{font-size:.875rem;color:var(--text-3);line-height:1.8;margin:0;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:.8125rem;color:var(--text-3);
}

/* ---------- To top ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:150;
  width:48px;height:48px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(16,27,44,.92);border:1px solid var(--glass-line);color:var(--accent);
  cursor:pointer;opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all var(--ease);box-shadow:var(--shadow-card);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{border-color:rgba(0,211,184,.5);color:#3ae6cf;}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .entry-layout{grid-template-columns:200px minmax(0,1fr);gap:32px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-col:last-child{grid-column:1 / -1;}
}
@media (max-width:991px){
  .nav-burger{display:inline-flex;}
  .lang-switch{display:none;}
  .channel-list{height:50px;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .entry-layout{grid-template-columns:1fr;}
  .entry-aside{position:static;top:auto;}
  .anchor-nav{flex-direction:row;flex-wrap:wrap;border-left:0;gap:8px;}
  .anchor-nav a{
    padding:8px 14px;border:1px solid var(--line);border-radius:999px;margin-left:0;
    background:rgba(255,255,255,.03);font-size:.875rem;
  }
  .anchor-nav a:hover,.anchor-nav a.is-active{border-left-color:var(--line);}
  .aside-card{margin-top:20px;}
  .cta-panel{grid-template-columns:1fr;padding:32px;gap:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
  .entry-item{grid-template-columns:44px minmax(0,1fr) 150px;gap:18px;}
}
@media (max-width:767px){
  .brandbar-in{height:60px;}
  .logo-text{font-size:1rem;}
  .hero{padding:40px 0 36px;}
  .hero-sub{font-size:1rem;}
  .section{padding:56px 0;}
  .section--tight{padding:44px 0;}
  .cta-section{padding-bottom:56px;}
  .entry-item{grid-template-columns:1fr;gap:16px;padding:20px;}
  .entry-index{font-size:1.25rem;}
  .entry-thumb{order:-1;aspect-ratio:16/9;}
  .faq-q{padding:14px 18px;font-size:.9375rem;}
  .faq-a{padding:0 18px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .cta-panel{padding:26px 22px;}
  .to-top{width:44px;height:44px;right:16px;bottom:16px;}
  .search-panel .wrap{flex-direction:column;gap:10px;}
  .search-panel .btn{width:100%;}
}
@media (max-width:575px){
  .wrap{padding:0 16px;}
  .hero h1{font-size:1.75rem;}
  .section-head h2{font-size:1.375rem;}
  .entry-body h3{font-size:1.0625rem;}
  .btn--lg{height:46px;padding:0 22px;font-size:.9375rem;}
  .cta-actions .btn{width:100%;}
  .hero-tags .tag-link{font-size:.8125rem;height:32px;padding:0 13px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --bg-0:#070C14;
  --bg-1:#0B1320;
  --bg-2:#101B2C;
  --accent:#00D3B8;
  --accent-strong:#12E0C6;
  --accent-soft:rgba(0,211,184,.12);
  --violet:#6C5CE7;
  --amber:#F2A93B;
  --text:#E9EFF7;
  --text-2:#A6B4C8;
  --text-3:#6B7C93;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --glass-line:rgba(255,255,255,.12);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --shadow-card:0 18px 40px -20px rgba(0,0,0,.75), inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-glow:0 10px 26px -12px rgba(0,211,184,.85);
  --ease:180ms ease-out;
  --bs-body-bg:#070C14;
  --bs-body-color:#E9EFF7;
  --bs-primary:#00D3B8;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-border-radius:16px;
  --bs-link-color:#00D3B8;
  --bs-link-hover-color:#12E0C6;
  --bs-font-sans-serif:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::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:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:32px 32px;
}
a{color:var(--accent);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--accent-strong);}
img{max-width:100%;height:auto;display:block;}
button{font:inherit;color:inherit;}
ul,ol{margin:0;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.skip-link{position:absolute;left:-9999px;top:0;z-index:200;background:var(--accent);color:#04141A;padding:10px 18px;border-radius:0 0 12px 0;font-weight:600;}
.skip-link:focus{left:0;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1;}
@media (min-width:1400px){.wrap{max-width:1280px;}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;border:1px solid transparent;font-weight:600;
  cursor:pointer;text-align:center;white-space:nowrap;
  transition:transform var(--ease),background var(--ease),box-shadow var(--ease),border-color var(--ease),color var(--ease);
}
.btn--primary{background:var(--accent);color:#04141A;box-shadow:var(--shadow-glow);}
.btn--primary:hover{background:var(--accent-strong);color:#04141A;transform:translateY(-1px);box-shadow:0 0 26px rgba(0,211,184,.42),0 16px 32px -14px rgba(0,211,184,.9);}
.btn--primary:active{transform:translateY(0);}
.btn--ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--text);}
.btn--ghost:hover{background:rgba(255,255,255,.08);color:var(--text);transform:translateY(-1px);}
.btn--sm{height:36px;padding:0 18px;font-size:.875rem;}
.btn--md{height:40px;padding:0 20px;font-size:.9375rem;}
.btn--lg{height:48px;padding:0 28px;font-size:1rem;}
.btn--link{background:none;border:none;padding:0;color:var(--accent);font-weight:600;position:relative;}
.btn--link::after{content:"";position:absolute;left:0;bottom:-4px;height:1px;width:0;background:var(--accent);transition:width var(--ease);}
.btn--link:hover::after{width:100%;}

/* ---------- 徽章 ---------- */
.badge-pill{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  font-size:.75rem;font-weight:600;line-height:1;letter-spacing:.02em;
  background:var(--accent-soft);color:var(--accent);border:1px solid rgba(0,211,184,.28);
}
.badge-pill--neutral{background:rgba(255,255,255,.08);color:var(--text-2);border-color:var(--line);}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:120;background:rgba(7,12,20,.93);backdrop-filter:blur(14px) saturate(120%);border-bottom:1px solid var(--line);}
.brandbar-in{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);flex-shrink:0;}
.logo:hover{color:var(--text);}
.logo-mark{width:34px;height:34px;display:grid;place-items:center;border-radius:10px;border:1px solid rgba(0,211,184,.35);background:rgba(0,211,184,.08);}
.logo-text{font-size:1.0625rem;font-weight:700;letter-spacing:.01em;}
.logo-text b{color:var(--accent);font-weight:700;}
.brand-tools{display:flex;align-items:center;gap:10px;}
.icon-btn{width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-2);cursor:pointer;transition:all var(--ease);}
.icon-btn:hover{color:var(--text);border-color:var(--line-strong);background:rgba(255,255,255,.09);}
.lang-switch{font-size:.8125rem;color:var(--text-3);padding:0 4px;}
.nav-burger{display:none;}
.search-panel{border-top:1px solid var(--line);background:rgba(11,19,32,.96);padding:14px 0;}
.search-panel .wrap{display:flex;gap:12px;align-items:center;}
.search-panel input[type="search"]{
  flex:1;height:44px;border-radius:12px;border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);color:var(--text);padding:0 16px;font-size:.9375rem;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.search-panel input[type="search"]::placeholder{color:var(--text-3);}
.search-panel input[type="search"]:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(0,211,184,.16);}
.channelbar{border-top:1px solid var(--line);}
.channel-list{display:flex;gap:6px;list-style:none;margin:0;padding:0;height:52px;align-items:center;overflow-x:auto;scrollbar-width:none;}
.channel-list::-webkit-scrollbar{display:none;}
.channel-list li{flex:0 0 auto;}
.channel-list a{display:inline-flex;align-items:center;height:52px;padding:0 14px;color:var(--text-2);font-size:.9375rem;font-weight:500;position:relative;transition:color var(--ease);}
.channel-list a:hover{color:var(--text);}
.channel-list a.active{color:var(--text);}
.channel-list a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;border-radius:2px;background:var(--accent);box-shadow:0 0 12px rgba(0,211,184,.8);}

/* ---------- 移动抽屉 ---------- */
.nav-drawer{position:fixed;inset:0;z-index:200;background:rgba(4,8,14,.72);backdrop-filter:blur(4px);display:flex;justify-content:flex-end;}
.nav-drawer[hidden]{display:none;}
.nav-drawer-panel{width:min(320px,86vw);height:100%;background:linear-gradient(180deg,#0B1320,#070C14);border-left:1px solid var(--glass-line);padding:20px;display:flex;flex-direction:column;gap:20px;overflow-y:auto;}
.nav-drawer-head{display:flex;align-items:center;justify-content:space-between;font-size:.875rem;color:var(--text-2);}
.nav-drawer-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;}
.nav-drawer-list a{display:flex;align-items:center;height:48px;padding:0 12px;border-radius:12px;color:var(--text-2);font-size:.9375rem;border:1px solid transparent;}
.nav-drawer-list a:hover,.nav-drawer-list a.active{color:var(--text);background:rgba(255,255,255,.05);border-color:var(--line);}

/* ---------- 文章头 ---------- */
.article-hero{
  position:relative;padding:52px 0 40px;overflow:hidden;
  background-image:linear-gradient(180deg,rgba(7,12,20,.86),rgba(7,12,20,.97)),url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.article-hero::before{
  content:"";position:absolute;top:-160px;right:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,211,184,.12),transparent 70%);filter:blur(60px);pointer-events:none;
}
.breadcrumb-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8125rem;color:var(--text-3);margin-bottom:16px;}
.breadcrumb-bar a{color:var(--text-2);}
.breadcrumb-bar a:hover{color:var(--accent);}
.breadcrumb-bar .sep{color:var(--text-3);}
.breadcrumb-bar .crumb-cat{color:var(--text-2);}
.breadcrumb-bar .crumb-current{color:var(--text-3);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-hero h1{
  font-size:clamp(1.75rem,3.4vw,2.5rem);line-height:1.24;font-weight:700;letter-spacing:-.01em;
  margin:14px 0 20px;max-width:900px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;font-size:.8125rem;color:var(--text-3);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);display:inline-block;}
.article-meta strong{color:var(--text-2);font-weight:500;}

/* ---------- 文章布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:48px;padding:64px 0 0;}
.article-main{max-width:780px;min-width:0;}
@media (min-width:1200px){
  .article-layout{grid-template-columns:780px 260px;justify-content:center;}
}

/* ---------- 正文排版 ---------- */
.article-body{color:#D8E1EE;font-size:1rem;line-height:1.9;text-align:left;word-break:break-word;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 18px;}
.article-body h2{position:relative;margin:40px 0 18px;padding-left:16px;font-size:clamp(1.35rem,2.2vw,1.6rem);line-height:1.35;font-weight:700;color:var(--text);}
.article-body h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:4px;background:var(--accent);box-shadow:0 0 12px rgba(0,211,184,.55);}
.article-body h3{margin:32px 0 14px;font-size:1.25rem;line-height:1.4;font-weight:600;color:var(--text);}
.article-body h4{margin:26px 0 12px;font-size:1.0625rem;font-weight:600;color:var(--text);}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:1.4em;line-height:1.85;}
.article-body li{margin-bottom:8px;}
.article-body ul li::marker,.article-body ol li::marker{color:var(--accent);font-weight:700;}
.article-body blockquote{margin:24px 0;padding:16px 20px;border-left:3px solid var(--accent);border-radius:0 12px 12px 0;background:rgba(0,211,184,.08);color:var(--text-2);}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:16px;margin:24px 0 10px;width:100%;height:auto;border:1px solid var(--line);}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:.8125rem;color:var(--text-3);text-align:center;margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:.9375rem;}
.article-body th,.article-body td{padding:12px 14px;border:1px solid var(--line);text-align:left;vertical-align:top;}
.article-body thead th{background:rgba(255,255,255,.05);color:var(--text);font-weight:600;}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.028);}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.875em;background:rgba(255,255,255,.06);padding:2px 6px;border-radius:6px;color:#8FF3E4;}
.article-body pre{background:#0A1422;border:1px solid var(--line);border-radius:12px;padding:16px;overflow-x:auto;margin:24px 0;max-width:100%;line-height:1.7;}
.article-body pre code{background:none;padding:0;color:#CBD8E8;}
.article-body a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--accent-strong);}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0;}

/* ---------- 侧栏 ---------- */
.article-side{display:none;}
@media (min-width:1200px){
  .article-side{display:block;position:sticky;top:96px;align-self:start;}
}
.side-card{
  border-radius:var(--r-md);border:1px solid var(--line);background:var(--bg-2);
  padding:20px;box-shadow:var(--shadow-card);margin-bottom:20px;
}
.side-card--glass{
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  backdrop-filter:blur(14px) saturate(120%);
  border-color:var(--glass-line);
}
.side-card h2{font-size:.9375rem;font-weight:600;color:var(--text);margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h2::before{content:"";width:4px;height:14px;border-radius:3px;background:var(--accent);}
.toc-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:2px;}
.toc-list a{display:block;padding:7px 10px;border-radius:8px;font-size:.8125rem;line-height:1.5;color:var(--text-2);border-left:2px solid transparent;transition:all var(--ease);}
.toc-list a:hover{color:var(--text);background:rgba(255,255,255,.05);border-left-color:rgba(0,211,184,.6);}
.side-links{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px;}
.side-links a{display:block;font-size:.875rem;color:var(--text-2);line-height:1.6;}
.side-links a:hover{color:var(--accent);}
.side-links span{display:block;font-size:.75rem;color:var(--text-3);margin-top:2px;}

/* ---------- 标签与相关 ---------- */
.article-foot{margin-top:48px;padding-top:32px;border-top:1px solid var(--line);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px;}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;
  font-size:.75rem;font-weight:500;color:var(--text-2);background:rgba(255,255,255,.06);border:1px solid var(--line);
  transition:all var(--ease);
}
.tag:hover{color:var(--accent);border-color:rgba(0,211,184,.4);background:var(--accent-soft);}
.foot-title{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px;}
.foot-title h2{font-size:1.125rem;font-weight:700;color:var(--text);}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.related-card{display:flex;flex-direction:column;gap:12px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--bg-2);padding:18px;box-shadow:var(--shadow-card);transition:transform var(--ease),border-color var(--ease);}
.related-card:hover{transform:translateY(-2px);border-color:rgba(0,211,184,.35);}
.related-card .thumb{aspect-ratio:16/9;border-radius:12px;overflow:hidden;background:var(--bg-1);border:1px solid var(--line);}
.related-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease);}
.related-card:hover .thumb img{transform:scale(1.03);}
.related-card h3{font-size:.9375rem;line-height:1.5;font-weight:600;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.related-card h3 a{color:inherit;}
.related-card h3 a:hover{color:var(--accent);}
.related-card time{font-size:.75rem;color:var(--text-3);}
.back-channel{display:inline-flex;align-items:center;gap:8px;margin-top:32px;font-size:.9375rem;font-weight:600;color:var(--accent);}
.back-channel:hover{gap:12px;}

/* ---------- 空态 ---------- */
.empty-state{
  min-height:280px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  border:1px dashed var(--line-strong);border-radius:var(--r-lg);background:var(--bg-1);padding:40px 24px;text-align:center;
}
.empty-state svg{color:var(--text-3);}
.empty-state p{font-size:.9375rem;color:var(--text-2);}
.empty-state .btn{margin-top:4px;}

/* ---------- 底部 CTA ---------- */
.cta-band{padding:72px 0;}
.cta-panel{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  border-radius:var(--r-lg);padding:40px;
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow-card);
}
.cta-panel h2{font-size:clamp(1.35rem,2.2vw,1.75rem);font-weight:700;line-height:1.3;margin-bottom:10px;}
.cta-panel p{font-size:.9375rem;color:var(--text-2);max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;border-top:1px solid var(--line);background:var(--bg-1);padding:64px 0 24px;z-index:1;}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(0,211,184,.5),transparent);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand p{font-size:.875rem;color:var(--text-3);line-height:1.85;margin-top:16px;max-width:340px;}
.footer-col h4{font-size:.875rem;font-weight:600;color:var(--text);margin-bottom:16px;}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:.875rem;color:var(--text-2);}
.footer-col a:hover{color:var(--accent);}
.footer-col p{font-size:.875rem;color:var(--text-3);line-height:1.85;}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;margin-top:48px;padding-top:20px;border-top:1px solid var(--line);font-size:.8125rem;color:var(--text-3);}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:28px;width:48px;height:48px;border-radius:50%;
  display:grid;place-items:center;background:rgba(16,27,44,.9);border:1px solid var(--glass-line);
  color:var(--accent);cursor:pointer;opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all var(--ease);z-index:90;backdrop-filter:blur(10px);
}
.to-top.is-on{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{border-color:rgba(0,211,184,.5);box-shadow:0 0 18px rgba(0,211,184,.3);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:991px){
  .article-layout{padding-top:48px;gap:40px;}
  .cta-panel{padding:32px;}
  .brandbar-in{height:64px;}
}
@media (max-width:767px){
  .channelbar{display:none;}
  .nav-burger{display:inline-flex;}
  .lang-switch{display:none;}
  .brandbar-in{height:60px;}
  .article-hero{padding:36px 0 28px;}
  .article-layout{padding-top:40px;}
  .related-grid{grid-template-columns:1fr;}
  .cta-band{padding:56px 0;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .to-top{width:44px;height:44px;right:16px;bottom:20px;}
  .brand-tools .btn--primary{height:34px;padding:0 14px;font-size:.8125rem;}
}
@media (max-width:575px){
  body{font-size:15.5px;}
  .wrap{padding:0 16px;}
  .article-hero h1{font-size:1.5rem;}
  .article-meta{font-size:.75rem;gap:6px 12px;}
  .cta-panel{padding:24px 20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .search-panel .wrap{flex-direction:column;align-items:stretch;}
  .search-panel .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important;}
  .related-card:hover,.btn:hover{transform:none;}
}

/* roulang page: category3 */
:root{
  --bg-0:#070C14;
  --bg-1:#0B1320;
  --bg-2:#101B2C;
  --bg-3:#142238;
  --accent:#00D3B8;
  --accent-soft:rgba(0,211,184,.12);
  --purple:#6C5CE7;
  --amber:#F2A93B;
  --txt:#E9EFF7;
  --txt-2:#A6B4C8;
  --txt-3:#6B7C93;
  --line:rgba(255,255,255,.08);
  --glass-line:rgba(255,255,255,.12);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --shadow:0 18px 40px -20px rgba(0,0,0,.75), inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-soft:0 10px 28px -18px rgba(0,0,0,.8);
  --glow:0 0 0 1px rgba(0,211,184,.35), 0 10px 30px -10px rgba(0,211,184,.45);
  --dur:180ms;
  --ease:cubic-bezier(.3,.7,.4,1);
  --maxw:1200px;
  --bs-body-bg:var(--bg-0);
  --bs-body-color:var(--txt);
  --bs-primary:var(--accent);
  --bs-border-color:var(--line);
  --bs-border-radius:var(--r-md);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:1rem;
  line-height:1.9;
  color:var(--txt);
  background:
    radial-gradient(760px 420px at 82% -8%, rgba(0,211,184,.10), transparent 62%),
    radial-gradient(620px 380px at 6% 18%, rgba(108,92,231,.09), transparent 66%),
    var(--bg-0);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none;transition:color var(--dur) var(--ease)}
a:hover{color:#3ce8d1}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.skip-link{
  position:absolute;left:16px;top:-64px;z-index:2000;
  padding:10px 18px;border-radius:999px;background:var(--accent);color:#04141A;
  font-size:.875rem;font-weight:600;transition:top var(--dur) var(--ease);
}
.skip-link:focus{top:12px;color:#04141A}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:32px}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.75rem;letter-spacing:.12em;color:var(--accent);
  text-transform:uppercase;margin-bottom:14px;font-weight:600;
}
.section-eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);opacity:.7}
.section-head h2{font-size:clamp(1.5rem,2.4vw,2.125rem);margin-bottom:14px}
.section-head p{color:var(--txt-2);font-size:1.0625rem}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(7,12,20,.82);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
}
.brandbar{position:relative}
.brandbar-in{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--txt)}
.logo:hover{color:var(--txt)}
.logo-mark{
  width:34px;height:34px;display:grid;place-items:center;
  border-radius:11px;
  background:linear-gradient(150deg,rgba(0,211,184,.16),rgba(108,92,231,.12));
  border:1px solid rgba(0,211,184,.32);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.logo-text{font-size:1.0625rem;font-weight:600;letter-spacing:.01em;white-space:nowrap}
.logo-text b{color:var(--accent);font-weight:700}
.brand-tools{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:38px;height:38px;display:grid;place-items:center;border-radius:11px;
  color:var(--txt-2);border:1px solid var(--line);background:rgba(255,255,255,.02);
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.icon-btn:hover{color:var(--txt);border-color:rgba(255,255,255,.2);transform:translateY(-1px)}
.lang-switch{font-size:.8125rem;color:var(--txt-3);white-space:nowrap}
.nav-burger{display:none}
.search-panel{border-top:1px solid var(--line);background:rgba(11,19,32,.94)}
.search-panel .wrap{display:flex;gap:12px;align-items:center;padding-top:14px;padding-bottom:14px}
.search-panel input[type="search"]{
  flex:1;height:44px;padding:0 16px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--txt);font-size:.9375rem;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.search-panel input[type="search"]::placeholder{color:var(--txt-3)}
.search-panel input[type="search"]:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(0,211,184,.16);
}
.channelbar{border-top:1px solid var(--line);background:rgba(7,12,20,.55)}
.channel-list{display:flex;align-items:center;gap:28px;height:52px;overflow-x:auto;scrollbar-width:none}
.channel-list::-webkit-scrollbar{display:none}
.channel-list a{
  position:relative;display:inline-flex;align-items:center;height:52px;
  font-size:.9375rem;font-weight:500;color:var(--txt-2);white-space:nowrap;
  transition:color var(--dur) var(--ease);
}
.channel-list a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:center;
  transition:transform var(--dur) var(--ease);
  box-shadow:0 0 12px rgba(0,211,184,.75);
}
.channel-list a:hover{color:var(--txt)}
.channel-list a.active{color:var(--txt);font-weight:600}
.channel-list a.active::after{transform:scaleX(1)}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,8,14,.66);z-index:130;
  opacity:0;pointer-events:none;transition:opacity var(--dur) var(--ease);
}
.drawer-mask.open{opacity:1;pointer-events:auto}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:140;
  background:var(--bg-1);border-left:1px solid var(--glass-line);
  transform:translateX(102%);transition:transform .26s var(--ease);
  display:flex;flex-direction:column;padding:20px;
  overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-title{font-size:.8125rem;letter-spacing:.14em;color:var(--txt-3);text-transform:uppercase}
.drawer-list{display:flex;flex-direction:column;gap:4px;margin-bottom:22px}
.drawer-list a{
  display:flex;align-items:center;height:48px;padding:0 14px;border-radius:var(--r-sm);
  color:var(--txt-2);font-size:.9375rem;border:1px solid transparent;
}
.drawer-list a:hover{background:rgba(255,255,255,.05);color:var(--txt)}
.drawer-list a.active{color:var(--accent);background:var(--accent-soft);border-color:rgba(0,211,184,.24)}
.drawer-note{font-size:.8125rem;color:var(--txt-3);line-height:1.7;margin-top:auto;padding-top:18px;border-top:1px solid var(--line)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:600;line-height:1;white-space:nowrap;
  border:1px solid transparent;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),
             background-color var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.btn--sm{height:36px;padding:0 18px;font-size:.875rem}
.btn--md{height:40px;padding:0 20px;font-size:.9375rem}
.btn--lg{height:48px;padding:0 28px;font-size:1rem}
.btn--primary{
  background:var(--accent);color:#04141A;
  box-shadow:0 8px 24px -12px rgba(0,211,184,.85), inset 0 1px 0 rgba(255,255,255,.35);
}
.btn--primary:hover{background:#22e0c7;color:#04141A;transform:translateY(-1px);box-shadow:0 14px 34px -12px rgba(0,211,184,.95), inset 0 1px 0 rgba(255,255,255,.4)}
.btn--primary:active{transform:translateY(1px)}
.btn--ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--txt)}
.btn--ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.28);color:var(--txt);transform:translateY(-1px)}
.btn--ghost:active{transform:translateY(1px)}
.btn--link{padding:0;height:auto;border-radius:0;color:var(--accent);position:relative;font-weight:600}
.btn--link::after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform var(--dur) var(--ease)}
.btn--link:hover::after{transform:scaleX(1)}

/* ---------- 徽章 ---------- */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 12px;
  border-radius:999px;font-size:.75rem;font-weight:600;line-height:1;
  background:var(--accent-soft);color:var(--accent);
  border:1px solid rgba(0,211,184,.24);
  white-space:nowrap;
}
.badge-pill--neutral{background:rgba(255,255,255,.07);color:var(--txt-2);border-color:rgba(255,255,255,.1)}
.badge-pill--violet{background:rgba(108,92,231,.14);color:#A79BF5;border-color:rgba(108,92,231,.34)}

/* ---------- Hero ---------- */
.page-hero{padding:56px 0 88px;position:relative;overflow:hidden}
.breadcrumb-nav{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:.8125rem;color:var(--txt-3);margin-bottom:20px;
}
.breadcrumb-nav a{color:var(--txt-2)}
.breadcrumb-nav a:hover{color:var(--accent)}
.breadcrumb-nav .sep{color:var(--txt-3);opacity:.7}
.breadcrumb-nav .current{color:var(--txt-3)}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero-copy h1{
  font-size:clamp(2rem,4.2vw,3.25rem);
  line-height:1.15;
  margin:16px 0 18px;
  letter-spacing:-0.01em;
}
.hero-copy h1 em{font-style:normal;color:var(--accent)}
.hero-lead{color:var(--txt-2);font-size:1.0625rem;line-height:1.8;max-width:36em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.trust-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:26px;font-size:.8125rem;color:var(--txt-3);
}
.trust-row span{display:inline-flex;align-items:center;gap:14px}
.trust-row span + span::before{content:"";width:1px;height:12px;background:rgba(255,255,255,.16)}
.hero-figure{position:relative}
.figure-frame{
  position:relative;overflow:hidden;border-radius:var(--r-md);
  border:1px solid var(--line);background:var(--bg-2);
  aspect-ratio:16/10;
  box-shadow:var(--shadow);
}
.figure-frame img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.figure-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(150deg,rgba(0,211,184,.10),transparent 46%),
    repeating-linear-gradient(90deg,rgba(255,255,255,.045) 0 1px,transparent 1px 32px);
  opacity:.85;
}
.glass-card{
  position:absolute;right:-8px;bottom:-22px;width:min(268px,84%);
  padding:16px 18px;border-radius:var(--r-md);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow);
}
.glass-card .gc-title{font-size:.75rem;letter-spacing:.1em;color:var(--txt-3);margin-bottom:10px;text-transform:uppercase}
.glass-row{display:flex;align-items:baseline;justify-content:space-between;gap:10px;font-size:.875rem;color:var(--txt-2);padding:5px 0}
.glass-row strong{font-size:1.125rem;color:var(--txt);font-weight:700}
.glass-row strong.accent{color:var(--accent)}

/* ---------- 锚点标签条 ---------- */
.anchor-strip{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.anchor-strip a{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  font-size:.875rem;color:var(--txt-2);border:1px solid var(--line);background:rgba(255,255,255,.02);
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),background-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.anchor-strip a:hover{color:var(--accent);border-color:rgba(0,211,184,.45);background:rgba(0,211,184,.08);transform:translateY(-1px)}

/* ---------- 参数表 ---------- */
.spec-wrap{
  border-radius:var(--r-lg);border:1px solid var(--line);background:var(--bg-2);
  box-shadow:var(--shadow);overflow:hidden;
}
.spec-table{width:100%;border-collapse:collapse;font-size:.9375rem}
.spec-table caption{
  caption-side:top;text-align:left;padding:22px 24px 16px;
  font-size:.8125rem;color:var(--txt-3);letter-spacing:.02em;
}
.spec-table thead th{
  text-align:left;padding:14px 24px;font-size:.75rem;letter-spacing:.12em;
  color:var(--txt-3);text-transform:uppercase;font-weight:600;
  background:rgba(255,255,255,.03);border-bottom:1px solid var(--line);
}
.spec-table tbody th{
  text-align:left;font-weight:600;color:var(--txt);padding:16px 24px;
  width:38%;border-bottom:1px solid var(--line);
}
.spec-table tbody td{
  padding:16px 24px;color:var(--txt-2);border-bottom:1px solid var(--line);line-height:1.75;
}
.spec-table tbody tr:nth-child(even){background:rgba(255,255,255,.032)}
.spec-table tbody tr:last-child th,
.spec-table tbody tr:last-child td{border-bottom:0}
.spec-table tbody tr:hover{background:rgba(0,211,184,.05)}
.spec-foot{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  padding:16px 24px;border-top:1px solid var(--line);background:rgba(255,255,255,.02);
  font-size:.8125rem;color:var(--txt-3);
}

/* ---------- 对比卡 ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:36px}
.compare-card{
  position:relative;border-radius:var(--r-lg);background:var(--bg-2);
  border:1px solid var(--line);box-shadow:var(--shadow);
  padding:26px 24px 24px;overflow:hidden;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.compare-card::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--accent)}
.compare-card--violet::before{background:linear-gradient(90deg,var(--purple),rgba(108,92,231,.25))}
.compare-card:hover{transform:translateY(-2px);border-color:rgba(255,255,255,.16)}
.compare-card h3{font-size:1.25rem;margin-bottom:6px}
.compare-card .cc-sub{font-size:.875rem;color:var(--txt-3);margin-bottom:20px}
.field-list{display:flex;flex-direction:column}
.field-list li{
  display:grid;grid-template-columns:96px 1fr;gap:14px;
  padding:12px 0;border-top:1px solid var(--line);font-size:.9375rem;
}
.field-list li:first-child{border-top:0;padding-top:0}
.field-list .f-name{color:var(--txt-3);font-size:.875rem}
.field-list .f-val{color:var(--txt-2);line-height:1.75}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;margin-top:40px;padding-left:0}
.timeline::before{
  content:"";position:absolute;left:23px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,rgba(0,211,184,.55),rgba(0,211,184,.06));
}
.tl-item{position:relative;display:grid;grid-template-columns:56px 1fr;gap:24px;padding:0 0 34px}
.tl-item:last-child{padding-bottom:0}
.tl-num{
  position:relative;z-index:1;width:48px;height:48px;border-radius:50%;
  display:grid;place-items:center;font-size:1rem;font-weight:700;
  background:var(--bg-2);color:var(--accent);
  border:1px solid rgba(0,211,184,.4);
  box-shadow:0 0 0 6px rgba(7,12,20,.9);
}
.tl-body{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 24px;box-shadow:var(--shadow-soft);
  transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.tl-body:hover{border-color:rgba(0,211,184,.32);transform:translateY(-2px)}
.tl-body h3{font-size:1.125rem;margin-bottom:8px}
.tl-body p{color:var(--txt-2);font-size:.9375rem}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:12px;margin-top:32px}
.faq-item{border-radius:var(--r-md);border:1px solid var(--line);background:var(--bg-2);overflow:hidden;transition:border-color var(--dur) var(--ease)}
.faq-item:hover{border-color:rgba(255,255,255,.16)}
.faq-item.is-open{border-color:rgba(0,211,184,.34)}
.faq-q{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;min-height:56px;padding:14px 22px;text-align:left;
  font-size:1rem;font-weight:600;color:var(--txt);
}
.faq-q::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:3px;
  background:var(--accent);opacity:0;transition:opacity var(--dur) var(--ease);
}
.faq-item.is-open .faq-q::before{opacity:1}
.faq-ico{position:relative;flex:0 0 20px;width:20px;height:20px;color:var(--accent)}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
  transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.faq-ico::before{left:2px;right:2px;top:9px;height:2px}
.faq-ico::after{top:2px;bottom:2px;left:9px;width:2px}
.faq-item.is-open .faq-ico::after{transform:scaleY(0);opacity:0}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .26s var(--ease)}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a > div{overflow:hidden}
.faq-a p{
  padding:0 22px 20px 22px;color:var(--txt-2);font-size:.9375rem;line-height:1.85;
  border-top:1px solid var(--line);margin-top:0;padding-top:16px;
}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 96px}
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:24px;padding:44px;
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow);
  display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:center;
}
.cta-panel::after{
  content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,211,184,.18),transparent 66%);
  filter:blur(20px);pointer-events:none;
}
.cta-panel h2{font-size:clamp(1.5rem,2.4vw,2rem);margin-bottom:12px}
.cta-panel p{color:var(--txt-2);font-size:1rem}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;position:relative;z-index:1}
.cta-note{margin-top:16px;font-size:.8125rem;color:var(--txt-3);position:relative;z-index:1}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(0,211,184,.05),transparent 120px),var(--bg-1);
  padding-top:64px;
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,211,184,.5),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{color:var(--txt-3);font-size:.9375rem;line-height:1.85;max-width:32em}
.footer-col h4{font-size:.8125rem;letter-spacing:.12em;color:var(--txt-2);text-transform:uppercase;margin-bottom:16px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:var(--txt-3);font-size:.9375rem}
.footer-col a:hover{color:var(--accent)}
.footer-col p{color:var(--txt-3);font-size:.9375rem;line-height:1.85}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  padding:22px 0 28px;border-top:1px solid var(--line);
  font-size:.8125rem;color:var(--txt-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-grid{grid-template-columns:6fr 6fr;gap:36px}
  .glass-card{position:relative;right:auto;bottom:auto;width:100%;margin-top:16px}
}
@media (max-width:991px){
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .page-hero{padding:40px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-figure{order:2}
  .nav-burger{display:grid}
  .lang-switch{display:none}
  .compare-grid{grid-template-columns:1fr}
  .cta-panel{grid-template-columns:1fr;padding:32px;gap:24px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .spec-table tbody th{width:42%}
}
@media (max-width:767px){
  .brandbar-in{height:60px}
  .channel-list{gap:20px}
  .channel-list a{font-size:.875rem;height:48px}
  .channel-list{height:48px}
  .section{padding:56px 0}
  .section--tight{padding:44px 0}
  .page-hero{padding:32px 0 52px}
  .hero-actions .btn{width:100%}
  .trust-row{font-size:.8125rem;gap:10px}
  .trust-row span + span::before{display:none}
  .spec-table{font-size:.875rem}
  .spec-table thead{display:none}
  .spec-table tbody th,.spec-table tbody td{display:block;width:100%;padding:10px 20px}
  .spec-table tbody th{padding-top:18px;border-bottom:0}
  .spec-table tbody td{padding-top:4px;border-bottom:1px solid var(--line)}
  .spec-table tbody tr:nth-child(even){background:rgba(255,255,255,.032)}
  .tl-item{grid-template-columns:44px 1fr;gap:16px}
  .tl-num{width:38px;height:38px;font-size:.9375rem}
  .timeline::before{left:18px}
  .tl-body{padding:18px 18px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .cta-band{padding-bottom:64px}
  .cta-panel{padding:26px 22px;border-radius:20px}
  .field-list li{grid-template-columns:88px 1fr}
}
@media (max-width:520px){
  .wrap{padding:0 16px}
  .logo-text{font-size:.9375rem}
  .logo-mark{width:30px;height:30px}
  .hero-copy h1{font-size:1.875rem}
  .hero-lead{font-size:1rem}
  .badge-pill{font-size:.6875rem}
  .section-head p{font-size:1rem}
  .faq-q{font-size:.9375rem;padding:14px 18px}
  .faq-a p{padding-left:18px;padding-right:18px}
  .anchor-strip a{height:32px;padding:0 13px;font-size:.8125rem}
  .footer-bottom{font-size:.75rem}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .btn:hover,.compare-card:hover,.tl-body:hover,.icon-btn:hover{transform:none}
  .figure-frame img{transition:none}
}

/* roulang page: category2 */
:root {
      --bg-0: #070C14;
      --bg-1: #0B1320;
      --bg-2: #101B2C;
      --bg-3: #060B12;
      --accent: #00D3B8;
      --accent-soft: rgba(0, 211, 184, .12);
      --accent-line: rgba(0, 211, 184, .24);
      --purple: #6C5CE7;
      --warn: #F2A93B;
      --text: #E9EFF7;
      --muted: #A6B4C8;
      --dim: #6B7C93;
      --line: rgba(255, 255, 255, .08);
      --glass-line: rgba(255, 255, 255, .12);
      --radius-xl: 24px;
      --radius-lg: 20px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --shadow: 0 18px 40px -20px rgba(0, 0, 0, .75), inset 0 1px 0 rgba(255, 255, 255, .06);
      --shadow-soft: 0 12px 30px -18px rgba(0, 0, 0, .7);
      --container: 1200px;
      --section-space: 96px;
      --font: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      --bs-body-bg: #070C14;
      --bs-body-color: #E9EFF7;
      --bs-primary: #00D3B8;
      --bs-border-color: rgba(255, 255, 255, .08);
      --bs-border-radius: 16px;
      --bs-link-color: #00D3B8;
      --bs-link-hover-color: #2EE3CA;
      --bs-font-sans-serif: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
      scroll-padding-top: 112px;
    }

    body {
      margin: 0;
      font-family: var(--font);
      font-size: 1rem;
      line-height: 1.9;
      color: var(--text);
      background-color: var(--bg-0);
      background-image:
        radial-gradient(ellipse at 15% 0%, rgba(0, 211, 184, .08), transparent 45%),
        linear-gradient(rgba(255, 255, 255, .018) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .018) 1px, transparent 1px);
      background-size: auto, 32px 32px, 32px 32px;
      background-attachment: fixed, fixed, fixed;
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }

    img {
      max-width: 100%;
      display: block;
    }

    a {
      color: var(--accent);
      text-decoration: none;
      transition: color .18s ease-out, border-color .18s ease-out, background .18s ease-out, opacity .18s ease-out;
    }

    a:hover {
      color: #2EE3CA;
    }

    button,
    input,
    textarea,
    select {
      font: inherit;
    }

    button {
      cursor: pointer;
    }

    h1,
    h2,
    h3,
    h4,
    p {
      margin-top: 0;
    }

    h1 {
      font-size: clamp(2rem, 4.2vw, 3.25rem);
      line-height: 1.15;
      letter-spacing: -.01em;
      font-weight: 700;
    }

    h2 {
      font-size: clamp(1.5rem, 2.4vw, 2.125rem);
      line-height: 1.25;
      font-weight: 700;
      letter-spacing: -.01em;
    }

    h3 {
      font-size: 1.25rem;
      line-height: 1.4;
      font-weight: 600;
    }

    :focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: 2px;
    }

    ::selection {
      color: #04141A;
      background: var(--accent);
    }

    .skip-link {
      position: fixed;
      top: 8px;
      left: 8px;
      z-index: 999;
      padding: 10px 16px;
      color: #04141A;
      background: var(--accent);
      border-radius: 999px;
      transform: translateY(-160%);
      transition: transform .2s ease-out;
      font-weight: 700;
    }

    .skip-link:focus {
      transform: translateY(0);
    }

    .wrap {
      width: 100%;
      max-width: var(--container);
      margin: 0 auto;
      padding: 0 20px;
    }

    @media (min-width: 1400px) {
      .wrap {
        max-width: 1280px;
      }
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: 999px;
      border: 1px solid transparent;
      font-weight: 600;
      line-height: 1;
      text-decoration: none;
      cursor: pointer;
      transition: transform .18s ease-out, background .18s ease-out, border-color .18s ease-out, box-shadow .18s ease-out, color .18s ease-out;
      white-space: nowrap;
      letter-spacing: .01em;
    }

    .btn:active {
      transform: translateY(1px);
    }

    .btn--primary {
      color: #04141A;
      background: var(--accent);
      border-color: var(--accent);
      box-shadow: 0 0 0 1px rgba(0, 211, 184, .25), 0 8px 30px -12px rgba(0, 211, 184, .8);
    }

    .btn--primary:hover {
      color: #04141A;
      background: #1FE2C6;
      border-color: #1FE2C6;
      transform: translateY(-1px);
      box-shadow: 0 0 0 1px rgba(0, 211, 184, .4), 0 12px 38px -12px rgba(0, 211, 184, .95);
    }

    .btn--ghost {
      color: var(--text);
      background: transparent;
      border-color: rgba(255, 255, 255, .18);
    }

    .btn--ghost:hover {
      color: var(--text);
      background: rgba(255, 255, 255, .08);
      border-color: rgba(255, 255, 255, .28);
      transform: translateY(-1px);
    }

    .btn--sm {
      height: 36px;
      padding: 0 16px;
      font-size: .875rem;
    }

    .btn--md {
      height: 40px;
      padding: 0 20px;
      font-size: .9375rem;
    }

    .btn--lg {
      height: 48px;
      padding: 0 28px;
      font-size: 1rem;
    }

    .btn--block {
      width: 100%;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      height: 24px;
      padding: 0 10px;
      border-radius: 999px;
      font-size: .75rem;
      font-weight: 600;
      line-height: 1;
      white-space: nowrap;
    }

    .badge--accent {
      color: var(--accent);
      background: rgba(0, 211, 184, .12);
      border: 1px solid rgba(0, 211, 184, .22);
    }

    .badge--muted {
      color: var(--muted);
      background: rgba(255, 255, 255, .06);
      border: 1px solid var(--line);
    }

    .badge--purple {
      color: #D6D1FF;
      background: rgba(108, 92, 231, .16);
      border: 1px solid rgba(108, 92, 231, .3);
    }

    /* Header */
    .site-header {
      position: relative;
      z-index: 100;
    }

    .brandbar {
      background: rgba(7, 12, 20, .76);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(14px) saturate(120%);
      -webkit-backdrop-filter: blur(14px) saturate(120%);
    }

    .brandbar-in {
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: var(--text);
      font-weight: 700;
      letter-spacing: .01em;
      text-decoration: none;
      flex: 0 0 auto;
    }

    .logo:hover {
      color: var(--text);
    }

    .logo-mark {
      width: 34px;
      height: 34px;
      display: grid;
      place-items: center;
      border: 1px solid rgba(0, 211, 184, .36);
      border-radius: 12px;
      background: rgba(0, 211, 184, .08);
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, .06);
    }

    .logo-text {
      font-size: 1.0625rem;
      white-space: nowrap;
    }

    .logo-text b {
      color: var(--accent);
      font-weight: 800;
    }

    .brand-tools {
      display: flex;
      align-items: center;
      gap: 12px;
      flex: 0 0 auto;
    }

    .icon-btn {
      width: 38px;
      height: 38px;
      display: grid;
      place-items: center;
      background: transparent;
      border: 1px solid var(--line);
      border-radius: 50%;
      color: var(--muted);
      transition: color .18s, border-color .18s, background .18s, transform .18s;
    }

    .icon-btn:hover {
      color: var(--text);
      border-color: rgba(0, 211, 184, .45);
      background: rgba(255, 255, 255, .04);
    }

    .icon-btn:active {
      transform: scale(.97);
    }

    .lang-switch {
      font-size: .875rem;
      color: var(--muted);
      padding: 0 2px;
      white-space: nowrap;
    }

    .nav-burger {
      display: none;
    }

    .search-panel {
      border-top: 1px solid var(--line);
      background: var(--bg-1);
      padding: 12px 0;
    }

    .search-panel .wrap {
      display: flex;
      gap: 12px;
      align-items: center;
    }

    .search-panel input {
      flex: 1;
      height: 44px;
      background: rgba(255, 255, 255, .04);
      border: 1px solid var(--line);
      border-radius: var(--radius-sm);
      color: var(--text);
      padding: 0 16px;
      outline: none;
      transition: border-color .18s, box-shadow .18s;
    }

    .search-panel input::placeholder {
      color: var(--dim);
    }

    .search-panel input:focus {
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(0, 211, 184, .14);
    }

    .channelbar {
      position: sticky;
      top: 0;
      z-index: 90;
      background: rgba(7, 12, 20, .88);
      backdrop-filter: blur(14px) saturate(120%);
      -webkit-backdrop-filter: blur(14px) saturate(120%);
      border-bottom: 1px solid var(--line);
    }

    .channelbar .wrap {
      overflow-x: auto;
      scrollbar-width: none;
    }

    .channelbar .wrap::-webkit-scrollbar {
      display: none;
    }

    .channel-list {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
      margin: 0;
      padding: 0;
      height: 52px;
      min-width: max-content;
    }

    .channel-list a {
      position: relative;
      display: inline-flex;
      align-items: center;
      height: 52px;
      color: var(--muted);
      font-size: .9375rem;
      font-weight: 500;
      white-space: nowrap;
    }

    .channel-list a:hover {
      color: var(--text);
    }

    .channel-list a.active {
      color: var(--text);
    }

    .channel-list a.active::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      height: 2px;
      border-radius: 2px;
      background: var(--accent);
      box-shadow: 0 0 12px rgba(0, 211, 184, .85);
    }

    .mobile-drawer {
      position: fixed;
      inset: 0;
      z-index: 200;
      display: flex;
      justify-content: flex-end;
    }

    .mobile-drawer[hidden] {
      display: none;
    }

    .drawer-backdrop {
      position: absolute;
      inset: 0;
      background: rgba(0, 0, 0, .62);
      backdrop-filter: blur(4px);
    }

    .drawer-panel {
      position: relative;
      width: min(360px, 88vw);
      height: 100%;
      background: linear-gradient(180deg, rgba(16, 27, 44, .99), rgba(7, 12, 20, .99));
      border-left: 1px solid var(--glass-line);
      padding: 20px;
      box-shadow: -20px 0 60px rgba(0, 0, 0, .5);
      display: flex;
      flex-direction: column;
      gap: 22px;
    }

    .drawer-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
    }

    .drawer-nav {
      list-style: none;
      margin: 0;
      padding: 0;
      display: flex;
      flex-direction: column;
      gap: 4px;
    }

    .drawer-nav a {
      display: flex;
      align-items: center;
      height: 48px;
      padding: 0 12px;
      border-radius: var(--radius-sm);
      color: var(--muted);
      font-weight: 500;
      border: 1px solid transparent;
    }

    .drawer-nav a:hover,
    .drawer-nav a.active {
      color: var(--text);
      background: rgba(255, 255, 255, .04);
      border-color: var(--line);
    }

    .drawer-foot {
      margin-top: auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    body.drawer-open {
      overflow: hidden;
    }

    /* Hero */
    .cat-hero {
      position: relative;
      overflow: hidden;
      padding: 64px 0 56px;
    }

    .cat-hero::before {
      content: "";
      position: absolute;
      width: 520px;
      height: 520px;
      left: -180px;
      top: -180px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(0, 211, 184, .12), transparent 68%);
      filter: blur(60px);
      pointer-events: none;
    }

    .hero-grid {
      position: relative;
      display: grid;
      grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
      gap: 48px;
      align-items: center;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
      margin-bottom: 18px;
      font-size: .8125rem;
      color: var(--dim);
    }

    .breadcrumb a {
      color: var(--muted);
      text-decoration: none;
      border-bottom: 1px solid transparent;
    }

    .breadcrumb a:hover {
      color: var(--accent);
      border-bottom-color: var(--accent);
    }

    .breadcrumb .current {
      color: var(--muted);
    }

    .breadcrumb .sep {
      color: var(--dim);
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 10px;
      color: var(--accent);
      font-size: .8125rem;
      font-weight: 600;
      letter-spacing: .08em;
    }

    .eyebrow::before {
      content: "";
      width: 18px;
      height: 1px;
      background: var(--accent);
      box-shadow: 0 0 8px rgba(0, 211, 184, .7);
    }

    .hero-badge {
      margin-bottom: 18px;
    }

    .hero-copy h1 {
      margin-bottom: 18px;
      max-width: 760px;
    }

    .hero-lead {
      max-width: 660px;
      margin-bottom: 0;
      color: var(--muted);
      font-size: 1.0625rem;
      line-height: 1.8;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 28px;
    }

    .trust-line {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 12px;
      margin-top: 24px;
      color: var(--dim);
      font-size: .875rem;
    }

    .trust-line span + span::before {
      content: "|";
      margin-right: 12px;
      color: rgba(255, 255, 255, .2);
    }

    .anchor-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 30px;
    }

    .anchor-tag {
      display: inline-flex;
      align-items: center;
      height: 32px;
      padding: 0 14px;
      border-radius: 999px;
      border: 1px solid var(--line);
      background: rgba(255, 255, 255, .035);
      color: var(--muted);
      font-size: .8125rem;
      text-decoration: none;
    }

    .anchor-tag:hover {
      color: var(--accent);
      border-color: rgba(0, 211, 184, .45);
      background: rgba(0, 211, 184, .06);
    }

    .hero-meta {
      margin-top: 18px;
      color: var(--dim);
      font-size: .8125rem;
    }

    .hero-media {
      position: relative;
    }

    .media-frame {
      position: relative;
      aspect-ratio: 16 / 10;
      overflow: hidden;
      border: 1px solid var(--glass-line);
      border-radius: var(--radius-md);
      background: var(--bg-2);
      box-shadow: var(--shadow);
    }

    .media-frame img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: .84;
    }

    .media-frame::after {
      content: "";
      position: absolute;
      inset: 0;
      pointer-events: none;
      background:
        linear-gradient(135deg, rgba(0, 211, 184, .2), transparent 42%, rgba(108, 92, 231, .12)),
        repeating-linear-gradient(115deg, transparent 0 18px, rgba(255, 255, 255, .035) 18px 19px);
      mix-blend-mode: screen;
    }

    .hero-info-card {
      position: absolute;
      right: 16px;
      bottom: 16px;
      min-width: 218px;
      padding: 14px 16px;
      border-radius: var(--radius-md);
      background: linear-gradient(160deg, rgba(255, 255, 255, .1), rgba(255, 255, 255, .03));
      border: 1px solid var(--glass-line);
      backdrop-filter: blur(14px) saturate(120%);
      -webkit-backdrop-filter: blur(14px) saturate(120%);
      box-shadow: var(--shadow);
    }

    .info-title {
      margin-bottom: 6px;
      color: var(--accent);
      font-size: .8125rem;
      font-weight: 600;
      letter-spacing: .02em;
    }

    .info-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 5px 0;
      color: var(--muted);
      font-size: .8125rem;
    }

    .info-row strong {
      color: var(--text);
      font-weight: 600;
    }

    /* Sections */
    .section {
      position: relative;
      padding: var(--section-space) 0;
    }

    .section--alt {
      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: 32px;
    }

    .section-head h2 {
      margin-bottom: 8px;
    }

    .section-head p {
      max-width: 680px;
      margin-bottom: 0;
      color: var(--muted);
      line-height: 1.8;
    }

    .feature-tabs {
      display: flex;
      gap: 8px;
      overflow-x: auto;
      scrollbar-width: none;
      margin-bottom: 28px;
      padding-bottom: 2px;
    }

    .feature-tabs::-webkit-scrollbar {
      display: none;
    }

    .feature-tabs .nav-link {
      white-space: nowrap;
      border-radius: 999px;
      border: 1px solid var(--line);
      color: var(--muted);
      background: rgba(255, 255, 255, .025);
      padding: 8px 16px;
      font-size: .875rem;
      transition: color .18s, background .18s, border-color .18s, box-shadow .18s;
    }

    .feature-tabs .nav-link:hover {
      color: var(--text);
      border-color: rgba(0, 211, 184, .4);
    }

    .feature-tabs .nav-link.active {
      color: #04141A;
      background: var(--accent);
      border-color: var(--accent);
      box-shadow: 0 6px 24px -12px rgba(0, 211, 184, .75);
    }

    .feature-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 24px;
    }

    .feature-card {
      position: relative;
      display: flex;
      flex-direction: column;
      gap: 14px;
      min-height: 214px;
      padding: 24px;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      background: var(--bg-2);
      box-shadow: var(--shadow);
      transition: transform .18s ease-out, border-color .18s ease-out, background .18s ease-out;
    }

    .feature-card:hover {
      transform: translateY(-2px);
      border-color: rgba(0, 211, 184, .32);
      background: #122036;
    }

    .feature-card-top {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 16px;
    }

    .feature-icon {
      width: 46px;
      height: 46px;
      display: grid;
      place-items: center;
      border-radius: 14px;
      color: var(--accent);
      background: rgba(0, 211, 184, .08);
      border: 1px solid rgba(0, 211, 184, .18);
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, .06);
      flex: 0 0 auto;
    }

    .feature-card h3 {
      margin: 0;
      font-size: 1.125rem;
      line-height: 1.4;
    }

    .feature-card p {
      margin: 0;
      color: var(--muted);
      font-size: .9375rem;
      line-height: 1.75;
    }

    .card-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      width: max-content;
      margin-top: auto;
      color: var(--accent);
      font-size: .875rem;
      font-weight: 600;
      text-decoration: none;
    }

    .card-link svg {
      transition: transform .18s ease-out;
    }

    .card-link:hover svg {
      transform: translateX(3px);
    }

    .combo-grid {
      display: grid;
      grid-template-columns: 1.18fr .82fr;
      gap: 24px;
      align-items: stretch;
    }

    .combo-main,
    .combo-side-card {
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      background: var(--bg-2);
      box-shadow: var(--shadow);
    }

    .combo-main {
      display: flex;
      flex-direction: column;
    }

    .combo-media {
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: var(--bg-1);
    }

    .combo-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .18s ease-out;
    }

    .combo-main:hover .combo-media img,
    .combo-side-card:hover .combo-thumb img {
      transform: scale(1.03);
    }

    .combo-body {
      padding: 24px;
    }

    .combo-body h3 {
      margin: 8px 0 10px;
    }

    .combo-body p {
      margin: 0;
      color: var(--muted);
      line-height: 1.8;
    }

    .combo-side {
      display: grid;
      gap: 24px;
    }

    .combo-side-card {
      display: grid;
      grid-template-columns: 112px 1fr;
      min-height: 170px;
      transition: transform .18s ease-out, border-color .18s ease-out;
    }

    .combo-side-card:hover {
      transform: translateY(-2px);
      border-color: rgba(0, 211, 184, .3);
    }

    .combo-thumb {
      overflow: hidden;
      background: var(--bg-1);
      border-right: 1px solid var(--line);
    }

    .combo-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .18s ease-out;
    }

    .combo-side-card .combo-body {
      padding: 20px;
    }

    .combo-side-card h3 {
      margin: 8px 0;
      font-size: 1.0625rem;
    }

    .combo-side-card p {
      font-size: .9375rem;
      line-height: 1.7;
    }

    /* Metrics */
    .metrics-band {
      position: relative;
      overflow: hidden;
      padding: 64px 0;
      background: var(--bg-3);
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }

    .metrics-band::before {
      content: "";
      position: absolute;
      width: 440px;
      height: 440px;
      right: -160px;
      top: -200px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(0, 211, 184, .1), transparent 68%);
      filter: blur(60px);
      pointer-events: none;
    }

    .metrics-grid {
      position: relative;
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 24px;
      margin-bottom: 36px;
    }

    .metric-card {
      padding-left: 20px;
      border-left: 1px solid var(--line);
    }

    .metric-card:first-child {
      padding-left: 0;
      border-left: 0;
    }

    .metric-value {
      color: var(--text);
      font-size: clamp(2.2rem, 3.4vw, 3.25rem);
      font-weight: 700;
      line-height: 1;
      font-variant-numeric: tabular-nums;
      letter-spacing: -.02em;
    }

    .metric-value span {
      margin-left: 6px;
      color: var(--accent);
      font-size: .875rem;
      font-weight: 600;
      letter-spacing: 0;
    }

    .metric-label {
      margin-top: 8px;
      color: var(--muted);
      font-size: .875rem;
    }

    .bar-group {
      position: relative;
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 24px;
    }

    .bar-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      color: var(--muted);
      font-size: .8125rem;
    }

    .bar-head strong {
      color: var(--text);
      font-weight: 600;
      font-variant-numeric: tabular-nums;
    }

    .bar-track {
      height: 6px;
      margin-top: 8px;
      overflow: hidden;
      border-radius: 999px;
      background: rgba(255, 255, 255, .06);
    }

    .bar-fill {
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--accent), rgba(0, 211, 184, 0));
      box-shadow: 0 0 10px rgba(0, 211, 184, .5);
    }

    /* Flow */
    .flow-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 24px;
    }

    .flow-step {
      position: relative;
      padding: 24px;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      background: var(--bg-2);
      box-shadow: var(--shadow);
    }

    .flow-step:not(:last-child)::after {
      content: "";
      position: absolute;
      top: 50%;
      right: -24px;
      width: 24px;
      border-top: 1px dashed rgba(0, 211, 184, .38);
      pointer-events: none;
    }

    .flow-num {
      margin-bottom: 16px;
      color: var(--accent);
      font-size: 2rem;
      font-weight: 700;
      line-height: 1;
      font-variant-numeric: tabular-nums;
      opacity: .9;
    }

    .flow-step h3 {
      margin-bottom: 8px;
      font-size: 1.0625rem;
    }

    .flow-step p {
      margin: 0;
      color: var(--muted);
      font-size: .9375rem;
      line-height: 1.7;
    }

    /* FAQ */
    .faq-wrap {
      display: grid;
      grid-template-columns: minmax(0, .72fr) minmax(0, 1.28fr);
      gap: 48px;
      align-items: start;
    }

    .faq-intro h2 {
      margin-bottom: 12px;
    }

    .faq-intro p {
      color: var(--muted);
      line-height: 1.8;
      margin-bottom: 0;
    }

    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      background: var(--bg-2);
      transition: border-color .18s ease-out;
    }

    .faq-item.open {
      border-color: rgba(0, 211, 184, .35);
    }

    .faq-toggle {
      width: 100%;
      min-height: 56px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 18px 20px;
      border: 0;
      background: transparent;
      color: var(--text);
      font-size: 1rem;
      font-weight: 600;
      line-height: 1.5;
      text-align: left;
    }

    .faq-toggle .sign {
      position: relative;
      flex: 0 0 auto;
      width: 20px;
      height: 20px;
      color: var(--accent);
    }

    .faq-toggle .sign::before,
    .faq-toggle .sign::after {
      content: "";
      position: absolute;
      left: 50%;
      top: 50%;
      border-radius: 2px;
      background: currentColor;
      transform: translate(-50%, -50%);
      transition: transform .2s ease-out, opacity .2s ease-out;
    }

    .faq-toggle .sign::before {
      width: 14px;
      height: 1.5px;
    }

    .faq-toggle .sign::after {
      width: 1.5px;
      height: 14px;
    }

    .faq-item.open .sign::after {
      opacity: 0;
      transform: translate(-50%, -50%) rotate(90deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      background: rgba(0, 0, 0, .14);
      transition: max-height .3s ease-out;
    }

    .faq-answer p {
      margin: 0;
      padding: 0 20px 20px;
      color: var(--muted);
      line-height: 1.8;
      border-left: 3px solid transparent;
    }

    .faq-item.open .faq-answer {
      max-height: 240px;
    }

    .faq-item.open .faq-answer p {
      border-left-color: var(--accent);
    }

    /* CTA */
    .cta-section {
      padding: 0 0 96px;
    }

    .cta-panel {
      position: relative;
      overflow: hidden;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 42px;
      padding: 40px;
      border: 1px solid var(--glass-line);
      border-radius: var(--radius-xl);
      background: linear-gradient(160deg, rgba(255, 255, 255, .07), rgba(255, 255, 255, .02));
      backdrop-filter: blur(14px) saturate(120%);
      -webkit-backdrop-filter: blur(14px) saturate(120%);
      box-shadow: var(--shadow);
    }

    .cta-panel::before {
      content: "";
      position: absolute;
      width: 360px;
      height: 360px;
      left: -140px;
      bottom: -200px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(0, 211, 184, .13), transparent 68%);
      filter: blur(50px);
      pointer-events: none;
    }

    .cta-copy {
      position: relative;
    }

    .cta-copy h2 {
      margin-bottom: 14px;
    }

    .cta-copy p {
      margin-bottom: 22px;
      color: var(--muted);
      line-height: 1.8;
    }

    .cta-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .cta-form {
      position: relative;
      display: grid;
      gap: 14px;
      align-content: start;
    }

    .form-field {
      display: grid;
      gap: 7px;
    }

    .form-field label {
      color: var(--muted);
      font-size: .875rem;
    }

    .form-control {
      width: 100%;
      height: 44px;
      padding: 0 14px;
      border: 1px solid var(--line);
      border-radius: var(--radius-sm);
      background: rgba(255, 255, 255, .04);
      color: var(--text);
      outline: none;
      transition: border-color .18s, box-shadow .18s, background .18s;
    }

    .form-control::placeholder {
      color: var(--dim);
    }

    .form-control:focus {
      border-color: var(--accent);
      background: rgba(255, 255, 255, .055);
      box-shadow: 0 0 0 3px rgba(0, 211, 184, .14);
    }

    textarea.form-control {
      height: auto;
      min-height: 88px;
      padding: 12px 14px;
      resize: vertical;
    }

    .form-note {
      margin: 0;
      color: var(--dim);
      font-size: .8125rem;
      line-height: 1.6;
    }

    .form-note.success {
      color: var(--accent);
    }

    /* Footer */
    .site-footer {
      position: relative;
      padding: 64px 0 24px;
      background: #050A11;
      border-top: 1px solid var(--line);
    }

    .site-footer::before {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      top: 0;
      height: 1px;
      opacity: .6;
      background: linear-gradient(90deg, transparent, rgba(0, 211, 184, .5), transparent);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      padding-bottom: 40px;
    }

    .footer-brand p {
      max-width: 320px;
      margin: 16px 0 0;
      color: var(--muted);
      font-size: .9375rem;
      line-height: 1.8;
    }

    .footer-col h4 {
      margin-bottom: 16px;
      color: var(--text);
      font-size: .9375rem;
    }

    .footer-col ul {
      display: flex;
      flex-direction: column;
      gap: 10px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .footer-col a {
      color: var(--muted);
      font-size: .9375rem;
      text-decoration: none;
    }

    .footer-col a:hover {
      color: var(--accent);
    }

    .footer-col p {
      margin: 0;
      color: var(--muted);
      font-size: .9375rem;
      line-height: 1.8;
    }

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      padding-top: 20px;
      border-top: 1px solid var(--line);
      color: var(--dim);
      font-size: .8125rem;
    }

    @media (max-width: 1199px) {
      .hero-grid {
        grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
        gap: 36px;
      }

      .footer-grid {
        grid-template-columns: 1.3fr 1fr 1fr 1.1fr;
        gap: 28px;
      }
    }

    @media (max-width: 991px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }

      .hero-media {
        order: 2;
      }

      .combo-grid {
        grid-template-columns: 1fr;
      }

      .combo-side {
        grid-template-columns: 1fr 1fr;
      }

      .metrics-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .metric-card:nth-child(3) {
        padding-left: 0;
        border-left: 0;
      }

      .bar-group {
        grid-template-columns: 1fr;
      }

      .flow-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .flow-step:nth-child(2)::after {
        display: none;
      }

      .faq-wrap {
        grid-template-columns: 1fr;
        gap: 32px;
      }

      .cta-panel {
        grid-template-columns: 1fr;
        padding: 32px;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 767px) {
      :root {
        --section-space: 56px;
      }

      .brandbar-in {
        height: 60px;
        gap: 12px;
      }

      .logo-text {
        font-size: .95rem;
      }

      .brand-tools {
        gap: 8px;
      }

      .lang-switch {
        display: none;
      }

      .brand-tools .btn--primary {
        height: 32px;
        padding: 0 12px;
        font-size: .8125rem;
      }

      .nav-burger {
        display: grid;
      }

      .channel-list {
        gap: 22px;
      }

      .cat-hero {
        padding: 44px 0 40px;
      }

      .section-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
      }

      .feature-grid {
        grid-template-columns: 1fr;
      }

      .combo-side {
        grid-template-columns: 1fr;
      }

      .combo-side-card {
        grid-template-columns: 96px 1fr;
      }

      .metrics-grid {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
      }

      .metric-card {
        padding-left: 12px;
      }

      .flow-grid {
        grid-template-columns: 1fr;
      }

      .flow-step::after {
        display: none !important;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }

      .cta-section {
        padding-bottom: 56px;
      }

      .cta-panel {
        padding: 24px;
      }

      .hero-info-card {
        position: static;
        margin: -28px 16px 0;
        min-width: 0;
      }

      .hero-actions .btn {
        flex: 1 1 auto;
      }
    }

    @media (max-width: 575px) {
      .wrap {
        padding: 0 16px;
      }

      .hero-actions {
        gap: 10px;
      }

      .hero-actions .btn {
        width: 100%;
      }

      .trust-line {
        gap: 8px;
        font-size: .8125rem;
      }

      .feature-card {
        padding: 20px;
      }

      .faq-toggle {
        padding: 16px;
      }

      .cta-panel {
        padding: 20px;
      }

      .combo-side-card {
        grid-template-columns: 1fr;
      }

      .combo-thumb {
        aspect-ratio: 16 / 9;
        border-right: 0;
        border-bottom: 1px solid var(--line);
      }

      .metrics-grid {
        grid-template-columns: 1fr;
      }

      .metric-card {
        padding-left: 0;
        padding-top: 20px;
        border-left: 0;
        border-top: 1px solid var(--line);
      }

      .metric-card:first-child {
        padding-top: 0;
        border-top: 0;
      }

      .footer-bottom span {
        line-height: 1.7;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      html {
        scroll-behavior: auto;
      }

      *,
      *::before,
      *::after {
        animation-duration: .001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .001ms !important;
        scroll-behavior: auto !important;
      }
    }

/* roulang page: category4 */
:root{
  --bg-0:#070C14;
  --bg-1:#0B1320;
  --bg-2:#101B2C;
  --acc:#00D3B8;
  --acc-2:#6C5CE7;
  --warn:#F2A93B;
  --tx:#E9EFF7;
  --tx-2:#A6B4C8;
  --tx-3:#6B7C93;
  --line:rgba(255,255,255,.08);
  --glass-line:rgba(255,255,255,.12);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --pill:999px;
  --shadow:0 18px 40px -20px rgba(0,0,0,.75), inset 0 1px 0 rgba(255,255,255,.06);
  --t:180ms ease-out;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --bs-body-bg:#070C14;
  --bs-body-color:#E9EFF7;
  --bs-primary:#00D3B8;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-border-radius:16px;
  --bs-link-color:#00D3B8;
  --bs-link-hover-color:#2ee6cd;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:1rem;
  line-height:1.9;
  color:var(--tx);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:32px 32px;
  opacity:.9;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--acc);text-decoration:none;transition:color var(--t);}
a:hover{color:#2ee6cd;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--tx);letter-spacing:-.01em;}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--acc);outline-offset:2px;border-radius:4px;}
.skip-link{
  position:absolute;left:16px;top:-64px;z-index:200;
  background:var(--acc);color:#04141A;font-weight:600;
  padding:10px 20px;border-radius:var(--pill);transition:top var(--t);
}
.skip-link:focus{top:12px;color:#04141A;}

/* ---------- layout ---------- */
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
main{position:relative;z-index:1;}
.section{padding:96px 0;position:relative;}
.section--alt{background:var(--bg-1);}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{font-size:clamp(1.5rem,2.4vw,2.125rem);line-height:1.25;margin-bottom:14px;}
.section-head p{color:var(--tx-2);font-size:1.0625rem;line-height:1.8;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:24px;padding:0 12px;margin-bottom:16px;
  font-size:.75rem;letter-spacing:.04em;
  color:var(--acc);background:rgba(0,211,184,.12);
  border:1px solid rgba(0,211,184,.28);border-radius:var(--pill);
}
.eyebrow--violet{color:#a79bff;background:rgba(108,92,231,.14);border-color:rgba(108,92,231,.32);}

/* ---------- header ---------- */
.site-header{position:relative;z-index:60;}
.brandbar{background:rgba(7,12,20,.94);border-bottom:1px solid var(--line);}
.brandbar-in{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--tx);flex-shrink:0;}
.logo:hover{color:var(--tx);}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:rgba(0,211,184,.1);
  border:1px solid rgba(0,211,184,.28);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.logo-text{font-size:1.0625rem;font-weight:600;letter-spacing:.01em;white-space:nowrap;}
.logo-text b{font-weight:700;color:var(--acc);letter-spacing:.02em;}
.brand-tools{display:flex;align-items:center;gap:12px;}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:var(--pill);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--tx-2);cursor:pointer;transition:all var(--t);
}
.icon-btn:hover{color:var(--tx);border-color:rgba(255,255,255,.2);background:rgba(255,255,255,.08);}
.icon-btn:active{transform:translateY(1px);}
.lang-switch{font-size:.8125rem;color:var(--tx-3);white-space:nowrap;}
.nav-burger{display:none;}
.search-panel{border-top:1px solid var(--line);background:var(--bg-1);padding:14px 0;}
.search-panel .wrap{display:flex;gap:12px;align-items:center;}
.search-panel input[type="search"]{
  flex:1;height:44px;padding:0 16px;color:var(--tx);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);border-radius:var(--r-sm);
  font-size:.9375rem;
}
.search-panel input[type="search"]::placeholder{color:var(--tx-3);}
.search-panel input[type="search"]:focus{
  outline:none;border-color:var(--acc);box-shadow:0 0 0 3px rgba(0,211,184,.16);
}
.channelbar{
  position:sticky;top:0;z-index:55;
  background:rgba(7,12,20,.86);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
}
.channel-list{display:flex;align-items:center;gap:28px;min-height:52px;}
.channel-list a{
  position:relative;display:inline-block;
  font-size:.9375rem;font-weight:500;color:var(--tx-2);
  padding:14px 0;white-space:nowrap;transition:color var(--t);
}
.channel-list a::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:2px;
  background:var(--acc);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform var(--t);
  box-shadow:0 0 12px rgba(0,211,184,.7);
}
.channel-list a:hover{color:var(--tx);}
.channel-list a.active{color:var(--tx);font-weight:600;}
.channel-list a.active::after{transform:scaleX(1);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 20px;
  font-size:.9375rem;font-weight:600;line-height:1;
  border-radius:var(--pill);border:1px solid transparent;
  cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
}
.btn--primary{
  background:var(--acc);color:#04141A;
  box-shadow:0 8px 24px -10px rgba(0,211,184,.85),inset 0 1px 0 rgba(255,255,255,.35);
}
.btn--primary:hover{
  background:#12e2c8;color:#04141A;transform:translateY(-1px);
  box-shadow:0 12px 32px -10px rgba(0,211,184,.95),inset 0 1px 0 rgba(255,255,255,.4);
}
.btn--primary:active{transform:translateY(1px);}
.btn--ghost{
  background:transparent;color:var(--tx);
  border-color:rgba(255,255,255,.18);
}
.btn--ghost:hover{background:rgba(255,255,255,.08);color:var(--tx);border-color:rgba(255,255,255,.3);}
.btn--text{
  height:auto;padding:0;background:none;border:none;color:var(--acc);
  font-weight:600;position:relative;
}
.btn--text::after{
  content:"";position:absolute;left:0;bottom:-3px;height:1px;width:100%;
  background:var(--acc);transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.btn--text:hover{color:#2ee6cd;}
.btn--text:hover::after{transform:scaleX(1);}
.btn--sm{height:34px;padding:0 16px;font-size:.8125rem;}
.btn--lg{height:48px;padding:0 28px;font-size:1rem;}

/* ---------- breadcrumb ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8125rem;color:var(--tx-3);margin-bottom:20px;}
.crumbs a{color:var(--tx-2);}
.crumbs a:hover{color:var(--acc);}
.crumbs span.sep{color:var(--tx-3);}
.crumbs span.current{color:var(--tx-2);}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  padding:72px 0 88px;
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(180deg,rgba(7,12,20,.72),rgba(7,12,20,.96)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat,
    var(--bg-0);
}
.cat-hero::after{
  content:"";position:absolute;right:-120px;top:-100px;width:460px;height:460px;
  background:radial-gradient(circle,rgba(0,211,184,.14),transparent 68%);
  filter:blur(120px);pointer-events:none;
}
.cat-hero-in{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:center;}
.cat-hero h1{
  font-size:clamp(2rem,4.2vw,3.25rem);
  line-height:1.15;font-weight:700;letter-spacing:-.01em;
  margin-bottom:20px;max-width:16em;
}
.cat-hero h1 em{font-style:normal;color:var(--acc);}
.cat-hero .lead{color:var(--tx-2);font-size:1.0625rem;line-height:1.8;max-width:40em;}
.cat-hero .lead + .lead{margin-top:10px;}
.anchor-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;}
.anchor-tags a{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;
  font-size:.8125rem;color:var(--tx-2);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);border-radius:var(--pill);
  transition:all var(--t);
}
.anchor-tags a:hover{color:var(--tx);border-color:rgba(0,211,184,.45);background:rgba(0,211,184,.1);}
.hero-side-card{
  padding:24px;border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow);
}
.hero-side-card h3{font-size:1rem;margin-bottom:14px;}
.hero-side-card ul{display:grid;gap:12px;}
.hero-side-card li{display:flex;gap:10px;font-size:.875rem;color:var(--tx-2);line-height:1.7;}
.hero-side-card li svg{flex-shrink:0;margin-top:5px;}

/* ---------- steps ---------- */
.step-flow{position:relative;display:grid;gap:0;max-width:920px;}
.step-item{
  position:relative;display:grid;grid-template-columns:112px minmax(0,1fr);gap:32px;
  padding:36px 0;
}
.step-item:not(:last-child)::after{
  content:"";position:absolute;left:55px;top:132px;bottom:-6px;
  border-left:1px dashed rgba(255,255,255,.16);
}
.step-num{
  font-size:clamp(2.5rem,4vw,3.25rem);font-weight:700;line-height:1;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
  color:transparent;
  -webkit-text-stroke:1.5px rgba(0,211,184,.65);
  padding-top:4px;
}
.step-item:first-child .step-num{
  color:var(--acc);-webkit-text-stroke:0;
  text-shadow:0 0 26px rgba(0,211,184,.35);
}
.step-body h3{font-size:1.25rem;line-height:1.4;margin-bottom:12px;}
.step-body p{color:var(--tx-2);font-size:.9688rem;line-height:1.85;margin-bottom:10px;max-width:44em;}
.step-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:16px;}
.step-meta .tag-mini{
  font-size:.75rem;color:var(--tx-3);
  border:1px solid var(--line);border-radius:var(--pill);
  padding:4px 12px;line-height:1.5;
}
.step-body .btn--text{font-size:.875rem;}

/* ---------- media rows ---------- */
.media-row{
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);
  gap:48px;align-items:center;
}
.media-row--flip .media-figure{order:2;}
.media-row + .media-row{margin-top:64px;}
.media-figure{
  border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--line);
  background:var(--bg-2);
  box-shadow:var(--shadow);
  aspect-ratio:16/9;
}
.media-figure img{width:100%;height:100%;object-fit:cover;transition:transform var(--t);}
.media-figure:hover img{transform:scale(1.03);}
.media-copy h3{font-size:1.25rem;line-height:1.4;margin-bottom:14px;}
.media-copy p{color:var(--tx-2);font-size:.9688rem;line-height:1.9;max-width:38em;}
.media-copy .eyebrow{margin-bottom:14px;}

/* ---------- checklist ---------- */
.check-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.check-card{
  padding:24px;border-radius:var(--r-md);
  background:var(--bg-2);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform var(--t),border-color var(--t);
}
.check-card:hover{transform:translateY(-2px);border-color:rgba(255,255,255,.16);}
.check-card .check-top{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
.check-card .check-top svg{flex-shrink:0;}
.check-card h3{font-size:1rem;line-height:1.4;}
.check-card p{color:var(--tx-2);font-size:.875rem;line-height:1.8;}

/* ---------- tips ---------- */
.tips-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.tip-card{
  position:relative;padding:28px 24px 24px;
  border-radius:var(--r-md);
  background:var(--bg-2);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform var(--t),border-color var(--t);
}
.tip-card:hover{transform:translateY(-2px);border-color:rgba(255,255,255,.16);}
.tip-card .tip-idx{
  font-size:.75rem;font-weight:700;letter-spacing:.08em;
  color:var(--tx-3);font-variant-numeric:tabular-nums;
}
.tip-card h3{font-size:1.0625rem;line-height:1.45;margin:10px 0 10px;}
.tip-card p{color:var(--tx-2);font-size:.875rem;line-height:1.85;}
.tip-card--warn{border-top:2px solid var(--warn);}
.tip-card--warn h3{color:#ffd08b;}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
  border-radius:var(--r-md);overflow:hidden;
  background:var(--bg-2);
  border:1px solid var(--line);
  transition:border-color var(--t);
}
.faq-item.open{border-color:rgba(0,211,184,.35);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;min-height:56px;padding:16px 22px;
  background:none;border:none;text-align:left;
  font-size:1rem;font-weight:600;color:var(--tx);cursor:pointer;
  transition:background var(--t);
}
.faq-q:hover{background:rgba(255,255,255,.03);}
.faq-icon{
  flex-shrink:0;position:relative;width:20px;height:20px;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--acc);border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform var(--t),opacity var(--t);
}
.faq-icon::before{width:14px;height:1.6px;}
.faq-icon::after{width:1.6px;height:14px;}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{
  display:grid;grid-template-rows:0fr;
  transition:grid-template-rows 220ms ease-out;
  background:rgba(0,0,0,.22);
}
.faq-item.open .faq-a{grid-template-rows:1fr;}
.faq-a-inner{overflow:hidden;}
.faq-a-inner p{
  position:relative;
  padding:4px 22px 20px 22px;
  color:var(--tx-2);font-size:.9375rem;line-height:1.9;
  max-width:42em;
}
.faq-item.open .faq-a-inner p{border-left:3px solid var(--acc);padding-left:19px;}

/* ---------- cta band ---------- */
.cta-band{padding:0 0 96px;}
.cta-panel{
  display:grid;grid-template-columns:minmax(0,1fr) auto;
  gap:40px;align-items:center;
  padding:48px;
  border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow);
  position:relative;overflow:hidden;
}
.cta-panel::after{
  content:"";position:absolute;left:-80px;bottom:-140px;width:360px;height:360px;
  background:radial-gradient(circle,rgba(0,211,184,.12),transparent 68%);
  filter:blur(110px);pointer-events:none;
}
.cta-panel h2{font-size:clamp(1.5rem,2.4vw,2rem);line-height:1.3;margin-bottom:14px;position:relative;z-index:2;}
.cta-panel p{color:var(--tx-2);font-size:.9688rem;line-height:1.85;max-width:38em;position:relative;z-index:2;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2;}

/* ---------- footer ---------- */
.site-footer{
  position:relative;z-index:1;
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,211,184,.55),transparent);
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:44px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{color:var(--tx-3);font-size:.875rem;line-height:1.85;max-width:30em;}
.footer-col h4{font-size:.875rem;font-weight:600;color:var(--tx);margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{color:var(--tx-3);font-size:.875rem;}
.footer-col a:hover{color:var(--acc);}
.footer-col p{color:var(--tx-3);font-size:.8125rem;line-height:1.85;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding-top:22px;border-top:1px solid var(--line);
  font-size:.8125rem;color:var(--tx-3);
}

/* ---------- offcanvas ---------- */
.offcanvas.drawer{
  background:var(--bg-1);color:var(--tx);
  border-left:1px solid var(--glass-line);
  width:320px;
}
.drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px;}
.drawer .btn-close{filter:invert(1) grayscale(1) brightness(1.6);opacity:.7;}
.drawer .offcanvas-body{padding:16px 20px 24px;display:flex;flex-direction:column;gap:8px;}
.drawer .drawer-link{
  display:flex;align-items:center;min-height:48px;padding:0 14px;
  color:var(--tx-2);font-size:.9375rem;border-radius:var(--r-sm);
  border:1px solid transparent;transition:all var(--t);
}
.drawer .drawer-link:hover,.drawer .drawer-link.active{
  color:var(--tx);background:rgba(255,255,255,.05);border-color:var(--line);
}
.drawer .btn{margin-top:16px;width:100%;}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .cat-hero-in{grid-template-columns:minmax(0,1fr);gap:36px;}
  .hero-side-card{max-width:520px;}
  .check-grid,.tips-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;}
}
@media (max-width:991px){
  .section{padding:72px 0;}
  .brandbar-in{min-height:64px;}
  .nav-burger{display:inline-flex;}
  .lang-switch{display:none;}
  .channel-list{gap:22px;overflow-x:auto;flex-wrap:nowrap;scrollbar-width:none;-ms-overflow-style:none;}
  .channel-list::-webkit-scrollbar{display:none;}
  .cat-hero{padding:56px 0 64px;}
  .media-row{grid-template-columns:minmax(0,1fr);gap:28px;}
  .media-row--flip .media-figure{order:0;}
  .cta-panel{grid-template-columns:minmax(0,1fr);padding:36px;gap:28px;}
  .step-item{grid-template-columns:88px minmax(0,1fr);gap:24px;}
  .step-item:not(:last-child)::after{left:43px;top:118px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
}
@media (max-width:767px){
  .wrap{padding:0 16px;}
  .section{padding:56px 0;}
  .brand-tools .btn{display:none;}
  .cat-hero h1{font-size:clamp(1.75rem,7vw,2.25rem);}
  .check-grid,.tips-grid{grid-template-columns:minmax(0,1fr);gap:16px;}
  .step-item{grid-template-columns:minmax(0,1fr);gap:12px;padding:28px 0;}
  .step-item:not(:last-child)::after{display:none;}
  .step-num{font-size:2.25rem;}
  .cta-band{padding-bottom:64px;}
  .cta-panel{padding:28px 22px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .faq-q{padding:14px 18px;font-size:.9375rem;}
  .faq-a-inner p{padding:4px 18px 18px;}
  .search-panel .wrap{flex-wrap:wrap;}
  .search-panel input[type="search"]{flex:1 1 100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:1ms!important;scroll-behavior:auto!important;}
  .check-card:hover,.tip-card:hover,.btn:hover{transform:none;}
  .media-figure:hover img{transform:none;}
}

/* roulang page: category5 */
:root{
  --bg-0:#070C14;
  --bg-1:#0B1320;
  --bg-2:#101B2C;
  --accent:#00D3B8;
  --accent-soft:rgba(0,211,184,.12);
  --violet:#6C5CE7;
  --amber:#F2A93B;
  --text:#E9EFF7;
  --muted:#A6B4C8;
  --weak:#6B7C93;
  --line:rgba(255,255,255,.08);
  --glass-line:rgba(255,255,255,.12);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --shadow:0 18px 40px -20px rgba(0,0,0,.75), inset 0 1px 0 rgba(255,255,255,.06);
  --ease:180ms ease-out;
  --bs-body-bg:#070C14;
  --bs-body-color:#E9EFF7;
  --bs-primary:#00D3B8;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-border-radius:16px;
  --bs-link-color:#00D3B8;
  --bs-link-hover-color:#3ae7d1;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background-color:var(--bg-0);
  background-image:
    linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:32px 32px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--text);}
p{margin:0;}
a{color:var(--accent);text-decoration:none;transition:color var(--ease);}
a:hover{color:#3ae7d1;}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input,textarea{font-family:inherit;font-size:1rem;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.skip-link{
  position:absolute;left:16px;top:-64px;z-index:200;
  background:var(--accent);color:#04141A;font-weight:700;
  padding:10px 18px;border-radius:999px;transition:top var(--ease);
}
.skip-link:focus{top:12px;color:#04141A;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1400px){.wrap{max-width:1280px;}}

/* ---------- header ---------- */
.site-header{position:relative;z-index:120;}
.brandbar{
  background:rgba(7,12,20,.92);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
}
.brandbar-in{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:700;letter-spacing:-.01em;}
.logo:hover{color:var(--text);}
.logo-mark{
  width:34px;height:34px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(160deg,rgba(0,211,184,.18),rgba(108,92,231,.16));
  border:1px solid var(--glass-line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.1);
}
.logo-text{font-size:1.0625rem;letter-spacing:.01em;white-space:nowrap;}
.logo-text b{color:var(--accent);font-weight:700;padding:0 1px;}
.brand-tools{display:flex;align-items:center;gap:14px;}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:999px;background:rgba(255,255,255,.05);border:1px solid var(--line);
  color:var(--muted);cursor:pointer;transition:all var(--ease);
}
.icon-btn:hover{color:var(--text);border-color:rgba(0,211,184,.45);background:rgba(0,211,184,.1);}
.lang-switch{font-size:.8125rem;color:var(--weak);white-space:nowrap;}
.nav-burger{display:none;}
.search-panel{border-top:1px solid var(--line);background:rgba(11,19,32,.96);}
.search-panel .wrap{display:flex;gap:12px;align-items:center;padding-top:14px;padding-bottom:14px;}
.search-panel input[type="search"]{
  flex:1;height:44px;border-radius:var(--r-sm);padding:0 16px;color:var(--text);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.search-panel input[type="search"]::placeholder{color:var(--weak);}
.search-panel input[type="search"]:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(0,211,184,.18);}

.channelbar{
  position:sticky;top:0;z-index:110;
  background:rgba(11,19,32,.94);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
}
.channel-list{display:flex;align-items:center;gap:34px;height:52px;overflow-x:auto;scrollbar-width:none;}
.channel-list::-webkit-scrollbar{display:none;}
.channel-list a{
  position:relative;display:inline-flex;align-items:center;height:52px;
  font-size:.9375rem;font-weight:500;color:var(--muted);white-space:nowrap;
  transition:color var(--ease);
}
.channel-list a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--accent);opacity:0;transform:scaleX(.4);
  transition:opacity var(--ease),transform var(--ease);
  box-shadow:0 0 12px rgba(0,211,184,.85);
}
.channel-list a:hover{color:var(--text);}
.channel-list a.active{color:var(--text);font-weight:600;}
.channel-list a.active::after{opacity:1;transform:scaleX(1);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:.9375rem;font-weight:600;line-height:1;border-radius:999px;
  border:1px solid transparent;background:transparent;color:var(--text);
  text-decoration:none;cursor:pointer;white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn:hover{text-decoration:none;}
.btn--sm{height:32px;padding:0 16px;font-size:.8125rem;}
.btn--md{height:40px;padding:0 20px;}
.btn--lg{height:48px;padding:0 28px;font-size:1rem;}
.btn--primary{
  background:var(--accent);color:#04141A;
  box-shadow:0 0 0 1px rgba(0,211,184,.35),0 12px 28px -12px rgba(0,211,184,.7);
}
.btn--primary:hover{background:#12e0c5;color:#04141A;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(0,211,184,.55),0 18px 36px -12px rgba(0,211,184,.85);}
.btn--primary:active{transform:translateY(1px);}
.btn--ghost{border-color:rgba(255,255,255,.18);color:var(--text);}
.btn--ghost:hover{background:rgba(255,255,255,.08);color:var(--text);transform:translateY(-1px);}
.btn--text{padding:0;height:auto;border-radius:0;color:var(--accent);font-weight:600;background:none;position:relative;}
.btn--text::after{content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;background:var(--accent);transition:width var(--ease);}
.btn--text:hover::after{width:100%;}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  font-size:.75rem;font-weight:600;letter-spacing:.02em;line-height:1;
}
.badge--accent{background:var(--accent-soft);color:var(--accent);box-shadow:inset 0 0 0 1px rgba(0,211,184,.3);}
.badge--violet{background:rgba(108,92,231,.14);color:#b9b1ff;box-shadow:inset 0 0 0 1px rgba(108,92,231,.42);}
.badge--neutral{background:rgba(255,255,255,.08);color:var(--muted);box-shadow:inset 0 0 0 1px var(--line);}

/* ---------- hero ---------- */
.hero-faq{
  position:relative;
  padding:56px 0 72px;
  background:
    radial-gradient(680px 320px at 82% 12%, rgba(0,211,184,.12), transparent 70%),
    linear-gradient(180deg, rgba(7,12,20,.94) 0%, rgba(7,12,20,.86) 45%, var(--bg-0) 100%),
    url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.crumb{display:flex;align-items:center;gap:8px;font-size:.8125rem;color:var(--weak);margin-bottom:20px;flex-wrap:wrap;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--accent);}
.crumb .current{color:var(--weak);}
.hero-faq h1{
  margin-top:18px;
  font-size:clamp(2rem,4.2vw,3.25rem);
  line-height:1.15;
  letter-spacing:-.01em;
  max-width:16em;
}
.hero-lead{
  margin-top:20px;max-width:34em;
  font-size:1.0625rem;line-height:1.8;color:var(--muted);
}
.index-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;}
.index-pills a{
  display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 16px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  color:var(--muted);font-size:.875rem;
  transition:all var(--ease);
}
.index-pills a .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex:none;}
.index-pills a:hover{
  color:var(--text);border-color:rgba(0,211,184,.5);background:rgba(0,211,184,.1);
  transform:translateY(-1px);
}
.hero-meta{
  margin-top:28px;display:flex;flex-wrap:wrap;gap:10px 22px;
  font-size:.8125rem;color:var(--weak);
}
.hero-meta span{display:inline-flex;align-items:center;gap:7px;}
.hero-meta svg{color:var(--accent);flex:none;}

/* ---------- sections ---------- */
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section-head{max-width:44em;margin-bottom:36px;}
.section-head h2{font-size:clamp(1.5rem,2.4vw,2.125rem);line-height:1.25;}
.section-head p{margin-top:14px;color:var(--muted);font-size:1rem;line-height:1.85;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.75rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);}

/* ---------- faq layout ---------- */
.faq-layout{padding-top:80px;padding-bottom:96px;}
.faq-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:48px;align-items:start;}
.faq-main{min-width:0;}
.faq-group + .faq-group{margin-top:56px;}
.faq-group h2{
  font-size:clamp(1.375rem,2.2vw,1.75rem);
  line-height:1.3;
  display:flex;align-items:center;gap:12px;
}
.faq-group h2 .num{
  font-size:.8125rem;font-weight:700;color:var(--accent);
  padding:2px 10px;border-radius:999px;background:var(--accent-soft);
  box-shadow:inset 0 0 0 1px rgba(0,211,184,.28);
  font-variant-numeric:tabular-nums;
}
.group-lead{margin-top:12px;color:var(--muted);font-size:.9375rem;line-height:1.85;max-width:40em;}
.acc-list{margin-top:24px;display:flex;flex-direction:column;gap:12px;}
.acc-item{
  background:var(--bg-2);
  border:1px solid var(--line);
  border-left:3px solid transparent;
  border-radius:var(--r-md);
  box-shadow:var(--shadow);
  transition:border-color var(--ease),transform var(--ease),background var(--ease);
  overflow:hidden;
}
.acc-item:hover{transform:translateY(-2px);border-color:rgba(255,255,255,.14);}
.acc-item.is-open{border-left-color:var(--accent);border-color:rgba(0,211,184,.28);}
.acc-h{margin:0;font-size:1rem;}
.acc-head{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:16px 22px;background:transparent;border:0;
  color:var(--text);font-size:1rem;font-weight:600;text-align:left;line-height:1.6;
  cursor:pointer;transition:color var(--ease);
}
.acc-head:hover{color:var(--accent);}
.acc-icon{
  flex:none;width:22px;height:22px;color:var(--accent);
  transition:transform var(--ease);
}
.acc-item.is-open .acc-icon{transform:rotate(45deg);}
.acc-body{
  max-height:0;overflow:hidden;
  transition:max-height 280ms ease;
  background:rgba(0,0,0,.22);
}
.acc-item.is-open .acc-body{max-height:420px;}
.acc-body p{
  padding:4px 22px 22px;
  color:var(--muted);font-size:.9375rem;line-height:1.9;
}
.acc-body p a{font-weight:600;}

/* ---------- aside ---------- */
.faq-aside{position:sticky;top:124px;display:flex;flex-direction:column;gap:20px;}
.glass-card{
  position:relative;
  padding:26px 24px;
  border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.glass-card::after{
  content:"";position:absolute;right:-60px;top:-60px;width:180px;height:180px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,211,184,.22),transparent 70%);
  pointer-events:none;
}
.glass-card h3{font-size:1.125rem;line-height:1.4;}
.glass-card p{margin-top:12px;color:var(--muted);font-size:.875rem;line-height:1.85;}
.glass-card .btn{margin-top:20px;width:100%;}
.aside-note{
  margin-top:16px;padding-top:16px;border-top:1px solid var(--line);
  font-size:.8125rem;color:var(--weak);line-height:1.7;
}
.aside-card{
  padding:24px;border-radius:var(--r-md);
  background:var(--bg-1);border:1px solid var(--line);box-shadow:var(--shadow);
}
.aside-card h4{font-size:.9375rem;letter-spacing:.01em;}
.aside-card ul{margin-top:14px;display:flex;flex-direction:column;gap:12px;}
.aside-card li a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:.875rem;color:var(--muted);padding-bottom:12px;border-bottom:1px solid var(--line);
  transition:color var(--ease);
}
.aside-card li:last-child a{border-bottom:0;padding-bottom:0;}
.aside-card li a:hover{color:var(--accent);}

/* ---------- channel strip ---------- */
.channel-strip{
  padding:56px 0;
  background:var(--bg-1);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.strip-head{display:flex;align-items:baseline;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:24px;}
.strip-head h2{font-size:1.375rem;line-height:1.35;}
.strip-head p{color:var(--weak);font-size:.875rem;}
.strip-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;}
.strip-item{
  display:flex;flex-direction:column;gap:6px;
  padding:20px 20px 18px;border-radius:var(--r-md);
  background:var(--bg-2);border:1px solid var(--line);
  color:var(--text);box-shadow:var(--shadow);
  transition:transform var(--ease),border-color var(--ease),background var(--ease);
}
.strip-item:hover{transform:translateY(-2px);border-color:rgba(0,211,184,.4);color:var(--text);background:#122036;}
.strip-item .s-title{font-size:1rem;font-weight:600;display:flex;align-items:center;gap:8px;}
.strip-item .s-title::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);flex:none;}
.strip-item .s-desc{font-size:.8125rem;color:var(--weak);line-height:1.7;}

/* ---------- cta ---------- */
.cta-section{padding:96px 0;}
.cta-panel{
  position:relative;
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
  padding:48px;
  border-radius:24px;
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;left:-80px;bottom:-120px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,211,184,.18),transparent 70%);
  pointer-events:none;
}
.cta-copy h2{font-size:clamp(1.5rem,2.4vw,2rem);line-height:1.3;}
.cta-copy p{margin-top:16px;color:var(--muted);font-size:.9375rem;line-height:1.85;max-width:32em;}
.cta-facts{margin-top:22px;display:flex;flex-wrap:wrap;gap:10px;}
.cta-form{display:flex;flex-direction:column;gap:16px;position:relative;z-index:1;}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:.875rem;color:var(--muted);}
.field input,.field textarea{
  width:100%;border-radius:var(--r-sm);padding:12px 14px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--text);font-size:.9375rem;line-height:1.7;
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
  resize:vertical;
}
.field input{height:44px;}
.field textarea{min-height:96px;}
.field input::placeholder,.field textarea::placeholder{color:var(--weak);}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(0,211,184,.18);
  background:rgba(0,211,184,.05);
}
.form-note{font-size:.8125rem;color:var(--weak);line-height:1.7;}
.form-note.is-done{color:var(--accent);}

/* ---------- footer ---------- */
.site-footer{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:72px 0 28px;
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,211,184,.5),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand p{margin-top:16px;color:var(--weak);font-size:.875rem;line-height:1.85;max-width:22em;}
.footer-col h4{font-size:.9375rem;margin-bottom:18px;color:var(--text);}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col li a{font-size:.875rem;color:var(--muted);}
.footer-col li a:hover{color:var(--accent);}
.footer-col p{font-size:.875rem;color:var(--weak);line-height:1.85;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:.8125rem;color:var(--weak);
}

/* ---------- to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:28px;z-index:130;
  width:48px;height:48px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(16,27,44,.92);border:1px solid var(--glass-line);color:var(--accent);
  box-shadow:var(--shadow);cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity var(--ease),visibility var(--ease),transform var(--ease),border-color var(--ease);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{border-color:rgba(0,211,184,.6);}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .faq-grid{grid-template-columns:minmax(0,1fr);gap:40px;}
  .faq-aside{position:static;display:grid;grid-template-columns:1fr 1fr;gap:20px;}
}
@media (max-width:991px){
  .section{padding:72px 0;}
  .faq-layout{padding-top:64px;padding-bottom:72px;}
  .cta-section{padding:72px 0;}
  .nav-burger{display:inline-flex;}
  .lang-switch{display:none;}
  .brandbar-in{height:60px;}
  .channel-list{gap:24px;}
  .site-header.nav-open .channelbar{
    position:fixed;top:60px;left:0;right:0;z-index:115;
    background:rgba(11,19,32,.98);
    backdrop-filter:blur(14px) saturate(120%);
    border-bottom:1px solid var(--glass-line);
    overflow:visible;padding:6px 0 14px;
    box-shadow:0 24px 48px -28px rgba(0,0,0,.9);
  }
  .site-header.nav-open .channel-list{flex-direction:column;gap:0;height:auto;width:100%;overflow:visible;}
  .site-header.nav-open .channel-list li{width:100%;}
  .site-header.nav-open .channel-list a{
    display:flex;height:48px;padding:0 20px;width:100%;
  }
  .site-header.nav-open .channel-list a::after{left:20px;right:auto;width:22px;transform:none;bottom:6px;opacity:0;}
  .site-header.nav-open .channel-list a.active::after{opacity:1;}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:36px 28px;}
  .strip-list{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .wrap{padding:0 16px;}
  .section{padding:56px 0;}
  .hero-faq{padding:40px 0 56px;}
  .hero-lead{font-size:1rem;}
  .index-pills a{height:34px;padding:0 14px;font-size:.8125rem;}
  .faq-aside{grid-template-columns:1fr;}
  .acc-head{min-height:56px;padding:14px 18px;font-size:.9375rem;}
  .acc-body p{padding:0 18px 18px;}
  .strip-list{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .to-top{width:44px;height:44px;right:16px;bottom:18px;}
  .cta-panel{padding:28px 20px;border-radius:20px;}
}
@media (max-width:575px){
  .logo-text{font-size:.9375rem;}
  .brand-tools{gap:8px;}
  .hero-faq h1{font-size:1.75rem;}
  .accordion-list{gap:10px;}
  .hero-meta{font-size:.75rem;gap:8px 16px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
  .acc-item:hover,.strip-item:hover,.btn:hover,.index-pills a:hover{transform:none;}
}