/* roulang page: index */
:root{
  --bg-900:#050A14;
  --bg-800:#0A1220;
  --bg-700:#101A2C;
  --bg-600:#16233A;
  --ink-100:#E8F2FF;
  --ink-300:#9FB2CC;
  --ink-500:#6B7C97;
  --brand-500:#17E0C0;
  --brand-600:#0FBFA6;
  --brand-700:#0A8F7E;
  --accent-500:#7A5CFF;
  --warn-400:#FFC24B;
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(23,224,192,.40);
  --divider:rgba(255,255,255,.06);
  --glass:rgba(255,255,255,.045);
  --r-lg:22px;
  --r-md:16px;
  --r-sm:11px;
  --shadow-card:0 8px 30px rgba(3,10,24,.55);
  --shadow-hover:0 14px 40px rgba(3,10,24,.65);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--ink-300);
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Noto Sans SC',system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(900px 520px at 82% -8%, rgba(122,92,255,.16), transparent 62%),
    radial-gradient(780px 460px at 8% 4%, rgba(23,224,192,.10), transparent 60%);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease,transform .18s ease,opacity .18s ease;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
h1,h2,h3,h4{color:var(--ink-100);margin:0;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:1220px;margin:0 auto;padding:0 20px;position:relative;z-index:1;}
@media (min-width:768px){.container{padding:0 32px;}}
.section{padding:64px 0;position:relative;z-index:1;}
@media (min-width:1024px){.section{padding:88px 0;}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:34px;}
.section-kicker{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.04em;color:var(--brand-500);text-transform:none;margin-bottom:12px;}
.section-kicker::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--brand-500),transparent);}
.section-title{font-size:clamp(1.35rem,2.4vw,2rem);font-weight:700;line-height:1.3;}
.section-desc{margin-top:10px;max-width:640px;color:var(--ink-300);font-size:15px;}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}

/* 顶栏 */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60;background:rgba(5,10,20,.72);backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;}
.site-header::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;background:linear-gradient(90deg,transparent,rgba(23,224,192,.55),rgba(122,92,255,.35),transparent);opacity:0;transition:opacity .25s ease;}
.site-header.is-scrolled{background:rgba(5,10,20,.92);border-bottom-color:var(--line);box-shadow:0 10px 30px rgba(3,10,24,.6);}
.site-header.is-scrolled::after{opacity:1;}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:64px;}
@media (max-width:640px){.header-inner{height:56px;}}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;font-weight:800;font-size:16px;color:#04140F;background:linear-gradient(140deg,var(--brand-500),#6EF3DD 55%,var(--accent-500));box-shadow:0 6px 18px rgba(23,224,192,.28);}
.brand-text{font-size:15px;font-weight:700;color:var(--ink-100);white-space:nowrap;letter-spacing:.01em;}
@media (max-width:1023px){.brand-text{font-size:14px;}}
.main-nav{display:none;align-items:center;gap:4px;}
@media (min-width:1024px){.main-nav{display:flex;}}
.nav-item{position:relative;}
.nav-link{display:inline-flex;align-items:center;gap:6px;padding:10px 14px;font-size:15px;color:var(--ink-300);border-radius:10px;position:relative;}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brand-500),var(--accent-500));opacity:0;transform:scaleX(.4);transition:opacity .2s ease,transform .2s ease;}
.nav-link:hover{color:var(--ink-100);background:rgba(255,255,255,.04);}
.nav-link:hover::after{opacity:.55;transform:scaleX(1);}
.nav-link.active{color:var(--brand-500);}
.nav-link.active::after{opacity:1;transform:scaleX(1);box-shadow:0 0 12px rgba(23,224,192,.55);}
.header-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{width:38px;height:38px;border-radius:11px;border:1px solid var(--line);background:rgba(255,255,255,.03);display:grid;place-items:center;color:var(--ink-300);transition:all .18s ease;}
.icon-btn:hover{color:var(--brand-500);border-color:var(--line-hover);background:rgba(23,224,192,.08);}
.menu-toggle{display:grid;place-items:center;width:38px;height:38px;border-radius:11px;border:1px solid var(--line);color:var(--ink-100);}
@media (min-width:1024px){.menu-toggle{display:none;}}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;font-weight:600;text-align:center;border:1px solid transparent;transition:all .18s ease;white-space:nowrap;}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-lg{padding:14px 28px;font-size:16px;}
.btn-primary{background:linear-gradient(135deg,var(--brand-500),var(--brand-600));color:#04140F;box-shadow:0 0 24px rgba(23,224,192,.28);}
.btn-primary:hover{background:linear-gradient(135deg,#39EBD0,var(--brand-600));box-shadow:0 0 32px rgba(23,224,192,.42);transform:translateY(-1px);}
.btn-primary:active{background:var(--brand-700);transform:translateY(0);}
.btn-ghost{border-color:rgba(255,255,255,.16);color:var(--ink-100);background:rgba(255,255,255,.03);}
.btn-ghost:hover{border-color:var(--line-hover);color:var(--brand-500);background:rgba(23,224,192,.07);}
.btn-line{border-color:var(--line);color:var(--ink-300);}
.btn-line:hover{color:var(--ink-100);border-color:var(--line-hover);}
.glow{box-shadow:0 0 26px rgba(23,224,192,.30);}

/* Mega 面板 */
.mega{position:absolute;top:calc(100% + 14px);left:50%;transform:translate(-50%,10px);width:840px;max-width:min(840px,88vw);padding:24px;border-radius:var(--r-lg);background:rgba(10,18,32,.94);backdrop-filter:blur(16px);border:1px solid var(--line);border-top:1px solid rgba(23,224,192,.45);box-shadow:0 26px 60px rgba(2,6,16,.72);opacity:0;visibility:hidden;transition:opacity .16s ease,transform .16s ease,visibility .16s ease;}
.nav-item:hover .mega,.nav-item:focus-within .mega{opacity:1;visibility:visible;transform:translate(-50%,0);}
.mega-grid{display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:22px;}
.mega-col-title{font-size:12px;color:var(--ink-500);margin-bottom:12px;letter-spacing:.03em;}
.mega-link{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:8px 10px;border-radius:10px;font-size:14px;color:var(--ink-300);}
.mega-link:hover{background:rgba(23,224,192,.08);color:var(--brand-500);}
.mega-link .count{font-family:var(--mono);font-size:12px;color:var(--warn-400);}
.mega-news{display:block;padding:8px 10px;border-radius:10px;}
.mega-news:hover{background:rgba(255,255,255,.04);}
.mega-news strong{display:block;font-size:14px;font-weight:600;color:var(--ink-100);line-height:1.55;}
.mega-news span{font-size:12px;color:var(--ink-500);font-family:var(--mono);}
.mega-card{padding:12px;border-radius:var(--r-md);background:rgba(255,255,255,.03);border:1px solid var(--line);}
.mega-card img{aspect-ratio:16/9;object-fit:cover;border-radius:10px;margin-bottom:12px;}
.mega-card p{font-size:13px;color:var(--ink-300);margin-bottom:12px;}

/* 移动抽屉 */
.drawer{position:fixed;inset:56px 0 0 0;z-index:55;background:rgba(5,10,20,.98);backdrop-filter:blur(10px);padding:24px 20px 40px;overflow-y:auto;display:none;}
.drawer.is-open{display:block;}
.drawer-link{display:flex;align-items:center;justify-content:space-between;padding:16px 4px;font-size:18px;font-weight:600;color:var(--ink-100);border-bottom:1px solid var(--divider);}
.drawer-link.active{color:var(--brand-500);}
.drawer-sub{padding:14px 4px 4px;font-size:13px;color:var(--ink-500);}
.drawer .btn{width:100%;margin-top:22px;}

/* Hero */
.hero{position:relative;padding:112px 0 64px;overflow:hidden;}
@media (min-width:1024px){.hero{padding:150px 0 92px;}}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.42;}
.hero-mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,10,20,.72) 0%,rgba(5,10,20,.88) 55%,var(--bg-900) 100%);}
.hero-grid{position:absolute;inset:0;opacity:.07;background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);background-size:56px 56px;}
.hero-inner{display:grid;gap:44px;align-items:center;}
@media (min-width:1024px){.hero-inner{grid-template-columns:7fr 5fr;gap:56px;}}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;background:rgba(122,92,255,.14);border:1px solid rgba(122,92,255,.32);color:#C6B9FF;font-size:12.5px;}
.hero h1{margin:20px 0 16px;font-size:clamp(1.75rem,4vw,3rem);font-weight:800;line-height:1.2;letter-spacing:-.01em;}
.hero h1 em{font-style:normal;background:linear-gradient(120deg,var(--brand-500),#8FE9FF 60%,var(--accent-500));-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{max-width:560px;font-size:16.5px;line-height:1.9;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
@media (max-width:520px){.hero-cta .btn{width:100%;}}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:38px;padding-top:26px;border-top:1px solid var(--divider);}
.hero-stats li{flex:1 1 130px;min-width:120px;}
.hero-stats b{display:block;font-family:var(--mono);font-size:22px;font-weight:700;color:var(--warn-400);line-height:1.25;}
.hero-stats span{font-size:13px;color:var(--ink-500);}
.hero-visual{position:relative;}
.hero-visual img{border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--shadow-hover);aspect-ratio:4/3;object-fit:cover;width:100%;}
.hero-card{position:absolute;left:-8px;bottom:-22px;width:min(300px,84%);padding:16px 18px;border-radius:var(--r-md);background:rgba(10,18,32,.86);backdrop-filter:blur(12px);border:1px solid var(--line);border-left:2px solid var(--brand-500);}
.hero-card strong{display:block;color:var(--ink-100);font-size:14px;margin-bottom:6px;}
.hero-card p{font-size:13px;color:var(--ink-300);}

/* 指标条 */
.metrics{display:grid;gap:16px;grid-template-columns:1fr;}
@media (min-width:640px){.metrics{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.metrics{grid-template-columns:repeat(4,1fr);}}
.metric{padding:22px;border-radius:var(--r-md);background:var(--bg-700);border:1px solid var(--line);box-shadow:var(--shadow-card);transition:border-color .2s ease,transform .2s ease;}
.metric:hover{border-color:var(--line-hover);transform:translateY(-2px);}
.metric b{font-family:var(--mono);font-size:26px;color:var(--brand-500);display:block;line-height:1.2;}
.metric h3{font-size:15px;margin:10px 0 6px;font-weight:600;}
.metric p{font-size:13.5px;color:var(--ink-500);line-height:1.75;}

/* 索引列表 */
.index-list{border-top:1px solid var(--divider);}
.index-row{display:grid;grid-template-columns:52px 1fr auto;gap:16px;align-items:center;padding:20px 14px 20px 0;border-bottom:1px solid var(--divider);position:relative;transition:transform .18s ease,background-color .18s ease;}
.index-row::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:3px;background:linear-gradient(180deg,var(--brand-500),var(--accent-500));opacity:0;transition:opacity .18s ease;}
.index-row:hover{transform:translateX(2px);background:rgba(255,255,255,.02);}
.index-row:hover::before{opacity:1;}
.index-num{font-family:var(--mono);font-size:15px;color:var(--brand-500);padding-left:14px;}
.index-row h3{font-size:17px;font-weight:600;margin-bottom:4px;}
.index-row p{font-size:14px;color:var(--ink-500);}
.index-meta{display:flex;align-items:center;gap:14px;font-size:12.5px;color:var(--ink-500);}
.index-meta .cnt{font-family:var(--mono);color:var(--warn-400);}
@media (max-width:640px){
  .index-row{grid-template-columns:44px 1fr;padding:18px 0;}
  .index-meta{grid-column:2;justify-content:flex-start;margin-top:8px;}
}

/* 精选卡片 */
.feature-grid{display:grid;gap:20px;}
@media (min-width:1024px){.feature-grid{grid-template-columns:2fr 1fr 1fr;}}
.card{background:var(--bg-700);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow-card);overflow:hidden;transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;}
.card:hover{border-color:var(--line-hover);transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.card a{display:block;height:100%;}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.card:hover .card-media img{transform:scale(1.04);}
.card-body{padding:20px;}
.card-body h3{font-size:17.5px;font-weight:600;line-height:1.5;}
.card-body p{margin-top:10px;font-size:14px;color:var(--ink-300);line-height:1.8;}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;font-size:12.5px;color:var(--ink-500);}
.badge{display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;font-size:12px;line-height:1.6;}
.badge-accent{background:rgba(122,92,255,.16);color:#B7A8FF;border:1px solid rgba(122,92,255,.28);}
.badge-brand{background:rgba(23,224,192,.12);color:var(--brand-500);border:1px solid rgba(23,224,192,.26);}
.badge-ghost{background:rgba(255,255,255,.04);color:var(--ink-300);border:1px solid var(--line);}
.feature-lg .card-media{aspect-ratio:16/9;}
@media (min-width:1024px){
  .feature-lg{grid-row:span 2;}
  .feature-lg .card-media{aspect-ratio:16/10;}
  .feature-lg .card-body h3{font-size:21px;}
}
.feature-sm .card-media{aspect-ratio:16/9;}

/* 最新信息 */
.news-grid{display:grid;gap:18px;}
@media (min-width:640px){.news-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr);}}
.news-card{display:flex;flex-direction:column;padding:20px;border-radius:var(--r-md);background:var(--bg-800);border:1px solid var(--line);box-shadow:var(--shadow-card);transition:border-color .2s ease,transform .2s ease;}
.news-card:hover{border-color:var(--line-hover);transform:translateY(-3px);}
.news-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px;}
.news-time{font-family:var(--mono);font-size:12px;color:var(--ink-500);}
.news-title{font-size:16.5px;font-weight:600;line-height:1.6;}
.news-desc{margin-top:10px;font-size:14px;color:var(--ink-300);line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-more{margin-top:16px;font-size:13.5px;color:var(--brand-500);display:inline-flex;align-items:center;gap:6px;}
.news-more::after{content:"→";transition:transform .18s ease;}
.news-card:hover .news-more::after{transform:translateX(4px);}
.empty-state{grid-column:1/-1;padding:46px 24px;text-align:center;border-radius:var(--r-md);background:var(--bg-800);border:1px dashed rgba(255,255,255,.14);}
.empty-state .dot{width:38px;height:38px;margin:0 auto 14px;border-radius:50%;display:grid;place-items:center;background:rgba(23,224,192,.10);color:var(--brand-500);}
.empty-state p{font-size:14.5px;color:var(--ink-300);}

/* 相关推荐 */
.rec-grid{display:grid;gap:16px;}
@media (min-width:640px){.rec-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.rec-grid{grid-template-columns:repeat(4,1fr);}}
.rec-card{display:block;padding:18px;border-radius:var(--r-md);background:var(--bg-700);border:1px solid var(--line);transition:border-color .2s ease,transform .2s ease;}
.rec-card:hover{border-color:var(--line-hover);transform:translateY(-3px);}
.rec-card img{aspect-ratio:16/9;object-fit:cover;border-radius:10px;margin-bottom:14px;}
.rec-card h3{font-size:15px;font-weight:600;line-height:1.55;}
.rec-card p{margin-top:8px;font-size:13px;color:var(--ink-500);line-height:1.75;}

/* CTA 玻璃卡 */
.cta-card{display:grid;gap:26px;padding:32px;border-radius:var(--r-lg);background:var(--glass);backdrop-filter:blur(14px);border:1px solid var(--line);border-top:1px solid rgba(23,224,192,.4);box-shadow:var(--shadow-hover);}
@media (min-width:1024px){.cta-card{grid-template-columns:1.4fr 1fr;align-items:center;padding:44px;}}
.cta-card h2{font-size:clamp(1.3rem,2.4vw,1.9rem);font-weight:700;line-height:1.35;}
.cta-card p{margin-top:12px;font-size:15px;max-width:620px;}
.share-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}
.fav-btn{display:inline-flex;align-items:center;gap:9px;padding:12px 22px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--ink-100);font-size:14.5px;font-weight:600;transition:all .2s ease;}
.fav-btn:hover{border-color:var(--line-hover);color:var(--brand-500);}
.fav-btn.is-on{border-color:rgba(255,194,75,.5);color:var(--warn-400);background:rgba(255,194,75,.10);box-shadow:0 0 18px rgba(255,194,75,.22);}
.share-btn{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.03);font-size:13.5px;color:var(--ink-300);}
.share-btn:hover{border-color:var(--line-hover);color:var(--brand-500);}
.qr-box{margin-top:20px;display:flex;align-items:center;gap:16px;padding:16px;border-radius:var(--r-md);background:rgba(255,255,255,.03);border:1px dashed rgba(255,255,255,.16);}
.qr-box img{width:88px;height:88px;object-fit:cover;border-radius:10px;}
.qr-box p{font-size:13px;color:var(--ink-500);}

/* FAQ */
.faq{border-top:1px solid var(--divider);}
.faq-item{border-bottom:1px solid var(--divider);}
.faq-item summary{display:flex;align-items:center;gap:16px;padding:22px 8px;cursor:pointer;list-style:none;font-size:16.5px;font-weight:600;color:var(--ink-100);transition:background-color .18s ease;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:rgba(255,255,255,.03);}
.faq-item summary .qnum{font-family:var(--mono);font-size:13px;color:var(--brand-500);flex-shrink:0;}
.faq-item summary .sign{margin-left:auto;width:26px;height:26px;flex-shrink:0;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;color:var(--brand-500);font-size:16px;line-height:1;transition:transform .2s ease,border-color .2s ease;}
.faq-item[open] summary .sign{transform:rotate(45deg);border-color:var(--line-hover);}
.faq-body{padding:0 8px 24px 46px;font-size:15px;line-height:1.85;color:var(--ink-300);}
@media (max-width:640px){.faq-body{padding-left:8px;}}

/* 页脚 */
.site-footer{margin-top:40px;border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(10,18,32,.9),rgba(5,10,20,1));position:relative;z-index:1;}
.site-footer::before{content:"";position:absolute;top:-1px;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(23,224,192,.5),rgba(122,92,255,.4),transparent);}
.footer-top{padding:56px 0 40px;display:grid;gap:36px;}
@media (min-width:768px){.footer-top{grid-template-columns:1.4fr 1fr 1fr 1fr;}}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--ink-500);line-height:1.85;max-width:340px;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{width:38px;height:38px;border-radius:11px;border:1px solid var(--line);display:grid;place-items:center;color:var(--ink-300);font-size:13px;}
.footer-social a:hover{color:var(--brand-500);border-color:var(--line-hover);background:rgba(23,224,192,.08);}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:16px;color:var(--ink-100);}
.footer-col a{display:block;padding:6px 0;font-size:14px;color:var(--ink-500);}
.footer-col a:hover{color:var(--brand-500);}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px;}
.footer-tags span{padding:5px 10px;border-radius:999px;background:rgba(255,255,255,.04);border:1px solid var(--line);font-size:12px;color:var(--ink-500);}
.footer-bottom{border-top:1px solid var(--divider);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-500);}
.to-top{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand-500),var(--brand-600));color:#04140F;box-shadow:0 0 22px rgba(23,224,192,.32);}
.to-top:hover{transform:translateY(-2px);}

/* 提示条 */
.toast{position:fixed;left:50%;bottom:32px;transform:translate(-50%,16px);padding:12px 22px;border-radius:999px;background:rgba(10,18,32,.96);border:1px solid var(--line-hover);color:var(--ink-100);font-size:14px;opacity:0;visibility:hidden;transition:all .22s ease;z-index:80;}
.toast.is-on{opacity:1;visibility:visible;transform:translate(-50%,0);}

/* roulang page: article */
:root{
  --bg-900:#050A14;
  --bg-800:#0A1220;
  --bg-700:#101A2C;
  --bg-600:#16233A;
  --ink-100:#E8F2FF;
  --ink-300:#9FB2CC;
  --ink-500:#6B7C97;
  --brand-500:#17E0C0;
  --brand-600:#0FBFA6;
  --brand-700:#0A8F7E;
  --accent-500:#7A5CFF;
  --warn-400:#FFC24B;
  --line:rgba(255,255,255,0.08);
  --line-hover:rgba(23,224,192,0.40);
  --divider:rgba(255,255,255,0.06);
  --glass:rgba(255,255,255,0.045);
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --shadow-card:0 8px 30px rgba(3,10,24,0.55);
  --shadow-hover:0 14px 40px rgba(3,10,24,0.65);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--ink-300);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--ink-100);letter-spacing:-0.01em}
p{margin:0}
ul,ol{margin:0}
::selection{background:rgba(23,224,192,.28);color:#fff}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:3px;border-radius:6px}

.container{width:100% !important;max-width:1240px !important;margin:0 auto !important;padding-left:20px !important;padding-right:20px !important}
@media(min-width:1024px){.container{padding-left:32px !important;padding-right:32px !important}}

/* ---------- 顶部进度条 ---------- */
.progress-bar{position:fixed;top:0;left:0;height:2px;width:0;z-index:90;background:linear-gradient(90deg,var(--brand-500),var(--accent-500));transition:width .08s linear}

/* ---------- 头部导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60;background:rgba(5,10,20,.74);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.site-header::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;background:linear-gradient(90deg,transparent,rgba(23,224,192,.55),transparent);pointer-events:none}
.header-inner{display:flex;align-items:center;gap:18px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand-500),var(--accent-500));color:#04121A;font-weight:800;font-size:16px;flex-shrink:0}
.brand-text{font-weight:700;font-size:16px;color:var(--ink-100);white-space:nowrap}
.main-nav{display:none}
@media(min-width:1024px){.main-nav{display:flex;align-items:center;gap:4px;margin-left:10px}}
.nav-item{position:relative}
.nav-link{position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:999px;font-size:15px;color:var(--ink-300);transition:color .2s,background .2s}
.nav-link:hover{color:var(--ink-100);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--brand-500)}
.nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--brand-500);box-shadow:0 0 10px rgba(23,224,192,.55)}
.mega{position:absolute;top:calc(100% + 12px);left:50%;transform:translate(-50%,8px);width:min(820px,88vw);padding:22px;border-radius:20px;background:rgba(10,18,32,.94);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--line);box-shadow:0 24px 60px rgba(0,0,0,.6);opacity:0;visibility:hidden;transition:opacity .16s ease,transform .16s ease,visibility .16s;z-index:70}
.mega::before{content:"";position:absolute;top:0;left:26px;right:26px;height:1px;background:linear-gradient(90deg,transparent,var(--brand-500),transparent)}
.nav-item:hover .mega,.nav-item:focus-within .mega{opacity:1;visibility:visible;transform:translate(-50%,0)}
.mega-grid{display:grid;grid-template-columns:1.1fr 1.15fr 1fr;gap:22px}
.mega-col-title{font-size:12px;font-weight:700;letter-spacing:.04em;color:var(--ink-500);margin-bottom:12px}
.mega-link{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 10px;border-radius:10px;font-size:14px;color:var(--ink-300);transition:background .2s,color .2s}
.mega-link:hover{background:rgba(23,224,192,.08);color:var(--brand-500)}
.mega-link .count{font-family:var(--mono);font-size:12px;color:var(--warn-400)}
.mega-news{display:block;padding:10px;border-radius:12px;border:1px solid var(--divider);margin-bottom:8px;transition:border-color .2s,background .2s}
.mega-news:hover{border-color:var(--line-hover);background:rgba(255,255,255,.03)}
.mega-news strong{display:block;font-size:14px;font-weight:600;color:var(--ink-100);line-height:1.5}
.mega-news span{font-size:12px;color:var(--ink-500)}
.mega-card img{border-radius:12px;width:100%;aspect-ratio:16/10;object-fit:cover}
.mega-card p{font-size:13px;line-height:1.7;color:var(--ink-500);margin:12px 0 14px}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line);color:var(--ink-300);background:transparent;transition:color .2s,border-color .2s}
.icon-btn:hover{color:var(--brand-500);border-color:var(--line-hover)}
.nav-toggle{position:absolute;opacity:0;width:1px;height:1px;pointer-events:none}
.nav-burger{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;border:1px solid var(--line);cursor:pointer;transition:border-color .2s}
.nav-burger span,.nav-burger span::before,.nav-burger span::after{content:"";display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-100);transition:.2s}
.nav-burger span{position:relative}
.nav-burger span::before{position:absolute;top:-6px;left:0}
.nav-burger span::after{position:absolute;top:6px;left:0}
.nav-burger:hover{border-color:var(--line-hover)}
@media(min-width:1024px){.nav-burger{display:none}}
.nav-drawer{display:none;position:fixed;left:0;right:0;top:64px;bottom:0;z-index:58;background:var(--bg-900);border-top:1px solid var(--divider);padding:22px 20px 40px;overflow-y:auto}
.nav-toggle:checked ~ .nav-drawer{display:block}
.nav-toggle:checked ~ .header-inner .nav-burger span{background:transparent}
.nav-toggle:checked ~ .header-inner .nav-burger span::before{top:0;transform:rotate(45deg)}
.nav-toggle:checked ~ .header-inner .nav-burger span::after{top:0;transform:rotate(-45deg)}
.drawer-link{display:block;padding:14px 4px;font-size:17px;font-weight:600;color:var(--ink-100);border-bottom:1px solid var(--divider)}
.drawer-sub{display:block;padding:11px 4px 11px 16px;font-size:15px;color:var(--ink-300);border-bottom:1px solid var(--divider)}
.drawer-sub:hover,.drawer-link:hover{color:var(--brand-500)}
.drawer-cta{margin-top:22px;display:block}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:12px 22px;font-size:15px;font-weight:600;border:1px solid transparent;transition:background .2s,color .2s,border-color .2s,transform .2s,box-shadow .2s;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--brand-500),var(--brand-600));color:#04120F}
.btn-primary:hover{background:linear-gradient(135deg,#4BF0D8,var(--brand-500));transform:translateY(-1px)}
.btn-ghost{border-color:var(--line);color:var(--ink-100);background:rgba(255,255,255,.03)}
.btn-ghost:hover{border-color:var(--line-hover);color:var(--brand-500)}
.btn-sm{padding:9px 16px;font-size:14px}
.glow{box-shadow:0 0 24px rgba(23,224,192,.28)}
.btn-fav{border-color:rgba(255,194,75,.42);color:var(--warn-400);background:rgba(255,194,75,.08)}
.btn-fav:hover{background:rgba(255,194,75,.16)}
.btn-fav.active{background:linear-gradient(135deg,#FFD37A,var(--warn-400));color:#2A1B00;border-color:transparent;box-shadow:0 0 24px rgba(255,194,75,.28)}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em;background:rgba(23,224,192,.1);color:var(--brand-500);border:1px solid rgba(23,224,192,.22)}
.badge-accent{background:rgba(122,92,255,.14);color:#B7A6FF;border-color:rgba(122,92,255,.28)}

/* ---------- 页头 ---------- */
.page-head{position:relative;padding:118px 0 52px;overflow:hidden;border-bottom:1px solid var(--divider)}
.page-head-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.26;filter:saturate(.65)}
.page-head-veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,10,20,.9),rgba(5,10,20,.95) 55%,var(--bg-900))}
.page-head-inner{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);margin-bottom:18px}
.breadcrumb a:hover{color:var(--brand-500)}
.breadcrumb .sep{color:rgba(255,255,255,.18)}
.breadcrumb .current{color:var(--ink-300);max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.page-head h1{font-size:clamp(1.75rem,4vw,2.6rem);font-weight:800;line-height:1.24;color:var(--ink-100);margin:16px 0 0;max-width:900px}
.lead{font-size:16px;line-height:1.85;color:var(--ink-300);max-width:760px;margin:16px 0 0}
.meta-row{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:24px;font-size:13px;color:var(--ink-500)}
.meta-row .mono{font-family:var(--mono);color:var(--ink-300)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.2);display:inline-block;vertical-align:middle;margin-right:8px}

/* ---------- 文章布局 ---------- */
.article-layout{display:grid;grid-template-columns:1fr;gap:40px;padding:48px 0 24px}
@media(min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 320px;gap:52px;padding:64px 0 32px}
}
.article-main{min-width:0;max-width:760px}
.article-body{font-size:17px;line-height:1.9;color:var(--ink-300)}
.article-body h2{font-size:1.5rem;font-weight:700;color:var(--ink-100);margin:46px 0 18px;padding-left:15px;position:relative;line-height:1.4}
.article-body h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:3px;background:var(--brand-500)}
.article-body h3{font-size:1.125rem;font-weight:600;color:var(--ink-100);margin:30px 0 14px;line-height:1.5}
.article-body p{margin:0 0 20px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body li{margin-bottom:10px}
.article-body ul li::marker{color:var(--brand-500)}
.article-body ol li::marker{color:var(--brand-500);font-family:var(--mono)}
.article-body a{color:var(--brand-500);border-bottom:1px solid rgba(23,224,192,.35);transition:color .2s}
.article-body a:hover{color:var(--brand-600)}
.article-body strong{color:var(--ink-100)}
.article-body blockquote{margin:24px 0;padding:16px 20px;border-left:3px solid var(--brand-500);border-radius:0 12px 12px 0;background:var(--glass);color:var(--ink-100)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:24px 0;width:100%;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--ink-500);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:24px 0}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{color:var(--ink-100);background:rgba(255,255,255,.03);font-weight:600}
.article-body code{font-family:var(--mono);font-size:.92em;background:rgba(255,255,255,.06);padding:2px 6px;border-radius:6px;color:var(--brand-500)}
.empty-state{text-align:center;padding:56px 24px;border-radius:20px;border:1px dashed var(--line);background:var(--bg-800)}
.empty-icon{width:56px;height:56px;margin:0 auto 18px;border-radius:18px;display:grid;place-items:center;background:rgba(122,92,255,.14);color:#B7A6FF;font-size:22px;font-weight:800}
.empty-state h2{font-size:1.25rem;font-weight:700;margin-bottom:10px}
.empty-state p{font-size:15px;color:var(--ink-500);max-width:440px;margin:0 auto 22px}

/* ---------- 标签行 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:40px 0 0;padding-top:24px;border-top:1px solid var(--divider)}
.tag{padding:6px 14px;border-radius:999px;font-size:13px;color:var(--ink-300);background:rgba(255,255,255,.04);border:1px solid var(--line);transition:color .2s,border-color .2s}
.tag:hover{color:var(--brand-500);border-color:var(--line-hover)}

/* ---------- 文末 CTA ---------- */
.end-cta{margin-top:32px;padding:28px;border-radius:20px;background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--line);display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between}
.end-cta h3{font-size:1.0625rem;font-weight:700;margin-bottom:6px}
.end-cta p{font-size:14px;color:var(--ink-500);max-width:420px}
.end-cta-actions{display:flex;flex-wrap:wrap;gap:10px}

/* ---------- 翻页 ---------- */
.pager{display:grid;gap:14px;grid-template-columns:1fr;margin-top:26px}
@media(min-width:640px){.pager{grid-template-columns:1fr 1fr}}
.pager a{display:block;padding:16px 18px;border-radius:14px;background:var(--bg-700);border:1px solid var(--line);transition:border-color .2s,transform .2s,box-shadow .2s}
.pager a:hover{border-color:var(--line-hover);transform:translateX(2px);box-shadow:var(--shadow-card)}
.pager-label{display:block;font-size:12px;color:var(--ink-500);margin-bottom:6px;font-family:var(--mono)}
.pager strong{font-size:14px;font-weight:600;color:var(--ink-100);line-height:1.6;display:block}
.pager-next{text-align:right}

/* ---------- 侧栏 ---------- */
.article-side{min-width:0}
@media(min-width:1024px){
  .article-side{position:sticky;top:88px;align-self:start;max-height:calc(100vh - 110px);overflow-y:auto;padding-right:4px}
  .article-side::-webkit-scrollbar{width:4px}
  .article-side::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:4px}
}
.side-card{background:var(--bg-700);border:1px solid var(--line);border-radius:16px;padding:20px;margin-bottom:18px;box-shadow:var(--shadow-card)}
.side-title{font-size:14px;font-weight:700;color:var(--ink-100);margin:0 0 14px;display:flex;align-items:center;gap:8px}
.side-title::before{content:"";width:3px;height:14px;border-radius:3px;background:var(--brand-500)}
.toc-list a{display:block;font-size:14px;color:var(--ink-300);padding:7px 0 7px 12px;border-left:1px solid var(--line);transition:color .2s,border-color .2s,padding-left .2s;line-height:1.6}
.toc-list a:hover{color:var(--brand-500);border-color:var(--brand-500);padding-left:16px}
.side-link{display:flex;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--divider);font-size:14px;color:var(--ink-300);transition:color .2s}
.side-link:last-child{border-bottom:0}
.side-link:hover{color:var(--brand-500)}
.side-link .count{font-family:var(--mono);font-size:12px;color:var(--warn-400)}
.side-cta img{border-radius:12px;width:100%;aspect-ratio:16/10;object-fit:cover}
.side-cta p{font-size:13px;line-height:1.75;color:var(--ink-500);margin:12px 0 14px}
.side-cta .btn{width:100%}

/* ---------- 相关推荐 ---------- */
.related{margin-top:56px;padding:56px 0 8px;border-top:1px solid var(--divider)}
.section-head{margin-bottom:30px}
.section-head h2{font-size:clamp(1.35rem,2.6vw,1.75rem);font-weight:700;margin-bottom:10px;line-height:1.35}
.section-head p{font-size:15px;color:var(--ink-500);max-width:660px}
.rel-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media(min-width:640px){.rel-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.rel-grid{grid-template-columns:repeat(3,1fr)}}
.rel-card{display:flex;flex-direction:column;background:var(--bg-700);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:transform .22s,border-color .22s,box-shadow .22s}
.rel-card:hover{transform:translateY(-3px);border-color:var(--line-hover);box-shadow:var(--shadow-hover)}
.rel-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.rel-body{padding:18px 18px 20px}
.rel-body .badge{margin-bottom:12px}
.rel-body h3{font-size:1rem;font-weight:600;line-height:1.55;margin-bottom:8px}
.rel-body p{font-size:13px;color:var(--ink-500);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-meta{margin-top:14px;font-size:12px;color:var(--ink-500);font-family:var(--mono)}
.back-row{margin-top:32px;display:flex;justify-content:center}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;margin-top:64px;background:var(--bg-800);border-top:1px solid var(--divider)}
.site-footer::before{content:"";position:absolute;top:-1px;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(23,224,192,.55),transparent)}
.footer-top{display:grid;gap:36px;grid-template-columns:1fr;padding-top:56px !important;padding-bottom:40px !important}
@media(min-width:768px){.footer-top{grid-template-columns:1.5fr 1fr 1fr 1fr;padding-top:64px !important;padding-bottom:48px !important}}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--ink-500);max-width:340px;margin-bottom:18px}
.footer-social{display:flex;gap:10px;flex-wrap:wrap}
.footer-social a{padding:6px 14px;border-radius:999px;font-size:13px;border:1px solid var(--line);color:var(--ink-300);transition:color .2s,border-color .2s}
.footer-social a:hover{color:var(--brand-500);border-color:var(--line-hover)}
.footer-col h4{font-size:14px;font-weight:700;color:var(--ink-100);margin-bottom:16px}
.footer-col a{display:block;font-size:14px;color:var(--ink-500);padding:5px 0;transition:color .2s}
.footer-col a:hover{color:var(--brand-500)}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.footer-tags span{font-size:12px;padding:4px 10px;border-radius:999px;background:rgba(122,92,255,.14);color:#B7A6FF}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:20px !important;padding-bottom:24px !important;border-top:1px solid var(--divider);font-size:13px;color:var(--ink-500)}
.to-top{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line);color:var(--ink-300);flex-shrink:0;transition:background .2s,color .2s,border-color .2s,box-shadow .2s}
.to-top:hover{color:#04120F;background:var(--brand-500);border-color:var(--brand-500);box-shadow:0 0 24px rgba(23,224,192,.28)}
@media(max-width:520px){
  .page-head{padding-top:104px}
  .end-cta{padding:22px}
  .end-cta-actions{width:100%}
  .end-cta-actions .btn{flex:1}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}
}

/* roulang page: category1 */
:root{
    --bg-900:#050A14;
    --bg-800:#0A1220;
    --bg-700:#101A2C;
    --bg-600:#16233A;
    --ink-100:#E8F2FF;
    --ink-300:#9FB2CC;
    --ink-500:#6B7C97;
    --brand-500:#17E0C0;
    --brand-600:#0FBFA6;
    --brand-700:#0A8F7E;
    --accent-500:#7A5CFF;
    --warn-400:#FFC24B;
    --line:rgba(255,255,255,0.08);
    --line-hover:rgba(23,224,192,0.40);
    --line-soft:rgba(255,255,255,0.06);
    --glass:rgba(255,255,255,0.045);
    --radius-lg:24px;
    --radius-md:16px;
    --radius-sm:12px;
    --shadow-card:0 8px 30px rgba(3,10,24,0.55);
    --shadow-hover:0 14px 40px rgba(3,10,24,0.65);
    --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
    --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    padding-top:64px;
    font-family:var(--font-sans);
    font-size:16.5px;
    line-height:1.85;
    color:var(--ink-300);
    background:var(--bg-900);
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;height:auto;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
  ul{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4{margin:0;color:var(--ink-100);font-weight:700;letter-spacing:-0.01em;}
  p{margin:0;}
  input,select,textarea{font-family:inherit;}
  a:focus-visible,button:focus-visible,summary:focus-visible{
    outline:2px solid var(--brand-500);
    outline-offset:3px;
    border-radius:6px;
  }
  .container{
    width:100%;
    max-width:1230px;
    margin:0 auto;
    padding:0 20px;
  }
  @media (min-width:1024px){
    .container{padding:0 32px;}
  }
  .page-grid-bg{
    position:fixed;
    inset:0;
    pointer-events:none;
    z-index:0;
    background-image:
      linear-gradient(rgba(255,255,255,0.028) 1px,transparent 1px),
      linear-gradient(90deg,rgba(255,255,255,0.028) 1px,transparent 1px);
    background-size:64px 64px;
    mask-image:radial-gradient(circle at 50% 0%,rgba(0,0,0,0.9),transparent 78%);
    -webkit-mask-image:radial-gradient(circle at 50% 0%,rgba(0,0,0,0.9),transparent 78%);
  }
  /* ---------- header ---------- */
  .site-header{
    position:fixed;
    top:0;
    left:0;
    right:0;
    z-index:80;
    height:64px;
    background:rgba(5,10,20,0.82);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line-soft);
    transition:background .25s ease,box-shadow .25s ease;
  }
  .site-header.is-scrolled{
    background:rgba(5,10,20,0.96);
    box-shadow:0 10px 30px rgba(3,10,24,0.6);
  }
  .site-header.is-scrolled::after{
    content:"";
    position:absolute;
    left:0;right:0;bottom:-1px;
    height:1px;
    background:linear-gradient(90deg,transparent,rgba(23,224,192,0.7),rgba(122,92,255,0.5),transparent);
  }
  .header-inner{
    height:64px;
    display:flex;
    align-items:center;
    gap:24px;
  }
  .brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    flex-shrink:0;
  }
  .brand-mark{
    width:34px;height:34px;
    display:grid;place-items:center;
    border-radius:11px;
    background:linear-gradient(140deg,var(--brand-500),var(--accent-500));
    color:#04121A;
    font-weight:800;
    font-size:17px;
    box-shadow:0 0 18px rgba(23,224,192,0.25);
  }
  .brand-text{
    color:var(--ink-100);
    font-weight:700;
    font-size:16px;
    letter-spacing:0.01em;
    white-space:nowrap;
  }
  .main-nav{
    display:none;
    align-items:center;
    gap:6px;
    margin-left:8px;
  }
  .nav-link{
    position:relative;
    display:inline-block;
    padding:8px 14px;
    border-radius:10px;
    font-size:15px;
    color:var(--ink-300);
    transition:color .2s ease,background .2s ease;
    white-space:nowrap;
  }
  .nav-link:hover{color:var(--ink-100);background:rgba(255,255,255,0.05);}
  .nav-link.active{
    color:var(--brand-500);
    font-weight:600;
  }
  .nav-link.active::after{
    content:"";
    position:absolute;
    left:14px;right:14px;bottom:1px;
    height:2px;
    border-radius:2px;
    background:var(--brand-500);
    box-shadow:0 0 12px rgba(23,224,192,0.6);
  }
  .nav-item{position:relative;}
  .mega{
    position:absolute;
    top:calc(100% + 14px);
    left:-120px;
    width:800px;
    padding:22px;
    border-radius:var(--radius-md);
    background:rgba(10,18,32,0.94);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    border:1px solid var(--line);
    box-shadow:0 26px 60px rgba(3,10,24,0.75);
    opacity:0;
    visibility:hidden;
    transform:translateY(-6px);
    transition:opacity .16s ease,transform .16s ease,visibility .16s;
    z-index:90;
  }
  .mega::before{
    content:"";
    position:absolute;
    top:0;left:0;right:0;
    height:1px;
    background:linear-gradient(90deg,transparent,rgba(23,224,192,0.8),rgba(122,92,255,0.6),transparent);
  }
  .nav-item:hover .mega,
  .nav-item:focus-within .mega{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
  }
  .mega-grid{
    display:grid;
    grid-template-columns:1fr 1fr 1.15fr;
    gap:24px;
  }
  .mega-col-title{
    font-size:12px;
    letter-spacing:0.04em;
    color:var(--ink-500);
    margin-bottom:12px;
  }
  .mega-link{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:10px;
    padding:8px 10px;
    border-radius:9px;
    font-size:14px;
    color:var(--ink-300);
    transition:background .18s ease,color .18s ease,transform .18s ease;
  }
  .mega-link:hover{
    background:rgba(23,224,192,0.08);
    color:var(--ink-100);
    transform:translateX(2px);
  }
  .mega-link .count{
    font-family:var(--font-mono);
    font-size:12px;
    color:var(--warn-400);
  }
  .mega-news{
    display:block;
    padding:9px 10px;
    border-radius:9px;
    transition:background .18s ease;
  }
  .mega-news:hover{background:rgba(255,255,255,0.05);}
  .mega-news strong{
    display:block;
    font-size:14px;
    font-weight:600;
    color:var(--ink-100);
    line-height:1.5;
  }
  .mega-news span{
    font-size:12px;
    color:var(--ink-500);
  }
  .mega-card{
    border-radius:var(--radius-sm);
    border:1px solid var(--line);
    background:rgba(22,35,58,0.6);
    padding:12px;
  }
  .mega-card img{
    width:100%;
    aspect-ratio:16/9;
    object-fit:cover;
    border-radius:9px;
    margin-bottom:10px;
  }
  .mega-card p{
    font-size:13px;
    line-height:1.7;
    color:var(--ink-300);
    margin-bottom:12px;
  }
  .header-actions{
    display:flex;
    align-items:center;
    gap:10px;
    margin-left:auto;
  }
  .icon-btn{
    width:38px;height:38px;
    display:grid;place-items:center;
    border-radius:11px;
    border:1px solid var(--line);
    color:var(--ink-300);
    transition:border-color .2s ease,color .2s ease,background .2s ease;
  }
  .icon-btn:hover{
    color:var(--brand-500);
    border-color:var(--line-hover);
    background:rgba(23,224,192,0.07);
  }
  .hamburger{
    width:38px;height:38px;
    display:grid;place-items:center;
    border-radius:11px;
    border:1px solid var(--line);
    color:var(--ink-100);
  }
  .hamburger:hover{border-color:var(--line-hover);color:var(--brand-500);}
  .mobile-drawer{
    display:none;
    border-top:1px solid var(--line-soft);
    background:rgba(5,10,20,0.99);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    padding:18px 20px 26px;
    max-height:calc(100vh - 64px);
    overflow-y:auto;
  }
  .mobile-drawer.open{display:block;}
  .mobile-drawer .drawer-link{
    display:block;
    padding:14px 12px;
    border-radius:12px;
    font-size:17px;
    font-weight:600;
    color:var(--ink-100);
    border-bottom:1px solid var(--line-soft);
  }
  .mobile-drawer .drawer-link.sub{
    font-size:15px;
    font-weight:500;
    color:var(--ink-300);
    padding-left:24px;
    border-bottom:1px dashed var(--line-soft);
  }
  .mobile-drawer .drawer-link.active{color:var(--brand-500);}
  .mobile-drawer .btn{width:100%;margin-top:18px;justify-content:center;}
  @media (min-width:1080px){
    .main-nav{display:flex;}
    .hamburger{display:none;}
    .mobile-drawer{display:none !important;}
  }
  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:12px 22px;
    border-radius:999px;
    font-size:15px;
    font-weight:600;
    line-height:1;
    transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
    white-space:nowrap;
  }
  .btn-sm{padding:9px 16px;font-size:13.5px;}
  .btn-primary{
    background:linear-gradient(135deg,var(--brand-500),var(--brand-600));
    color:#04121A;
  }
  .btn-primary:hover{
    background:linear-gradient(135deg,var(--brand-600),var(--brand-700));
    transform:translateY(-1px);
  }
  .btn-primary:active{transform:translateY(0);background:var(--brand-700);}
  .glow{box-shadow:0 0 24px rgba(23,224,192,0.28);}
  .glow:hover{box-shadow:0 0 32px rgba(23,224,192,0.42);}
  .btn-ghost{
    border:1px solid var(--line);
    color:var(--ink-100);
    background:rgba(255,255,255,0.03);
  }
  .btn-ghost:hover{
    border-color:var(--line-hover);
    color:var(--brand-500);
    background:rgba(23,224,192,0.07);
  }
  .btn-amber{
    border:1px solid rgba(255,194,75,0.35);
    color:var(--warn-400);
    background:rgba(255,194,75,0.08);
  }
  .btn-amber:hover{
    background:rgba(255,194,75,0.16);
    border-color:rgba(255,194,75,0.6);
  }
  .btn-amber.is-on{
    background:linear-gradient(135deg,rgba(255,194,75,0.95),rgba(255,160,32,0.9));
    color:#241703;
    border-color:transparent;
    box-shadow:0 0 22px rgba(255,194,75,0.35);
  }
  /* ---------- badges ---------- */
  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:5px 12px;
    border-radius:999px;
    font-size:12px;
    line-height:1.6;
    letter-spacing:0.02em;
    color:var(--brand-500);
    background:rgba(23,224,192,0.1);
    border:1px solid rgba(23,224,192,0.22);
  }
  .badge-accent{
    color:#B9A8FF;
    background:rgba(122,92,255,0.14);
    border-color:rgba(122,92,255,0.28);
  }
  .badge-soft{
    color:var(--ink-500);
    background:rgba(255,255,255,0.04);
    border-color:var(--line);
  }
  .tag{
    display:inline-block;
    padding:3px 10px;
    border-radius:999px;
    font-size:12px;
    color:var(--ink-300);
    background:rgba(255,255,255,0.045);
    border:1px solid var(--line);
  }
  /* ---------- breadcrumb ---------- */
  .breadcrumb-wrap{
    position:relative;
    z-index:2;
    padding-top:22px;
  }
  .breadcrumb{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:8px;
    font-size:13px;
    color:var(--ink-500);
  }
  .breadcrumb a{color:var(--ink-500);transition:color .2s ease;}
  .breadcrumb a:hover{color:var(--brand-500);}
  .breadcrumb .sep{color:rgba(107,124,151,0.6);}
  .breadcrumb .current{color:var(--ink-300);}
  /* ---------- page head ---------- */
  .page-head{
    position:relative;
    overflow:hidden;
    padding:34px 0 44px;
    margin-top:4px;
  }
  .page-head-bg{
    position:absolute;
    inset:0;
    background-image:url('/assets/images/backpic/back-1.png');
    background-size:cover;
    background-position:center;
    opacity:0.28;
  }
  .page-head-mask{
    position:absolute;
    inset:0;
    background:linear-gradient(180deg,rgba(5,10,20,0.7) 0%,rgba(5,10,20,0.92) 62%,var(--bg-900) 100%);
  }
  .page-head-inner{
    position:relative;
    z-index:2;
    max-width:860px;
  }
  .page-head h1{
    font-size:clamp(1.75rem,4vw,3rem);
    font-weight:800;
    line-height:1.2;
    margin:16px 0 14px;
  }
  .page-head .lead{
    font-size:16px;
    line-height:1.85;
    color:var(--ink-300);
    max-width:620px;
  }
  .head-meta{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:22px;
  }
  .meta-chip{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:9px 15px;
    border-radius:12px;
    border:1px solid var(--line);
    background:rgba(16,26,44,0.7);
    font-size:13px;
    color:var(--ink-300);
  }
  .meta-chip b{
    font-family:var(--font-mono);
    font-size:14px;
    color:var(--warn-400);
    font-weight:600;
  }
  /* ---------- sections ---------- */
  .section{
    position:relative;
    z-index:2;
    padding:56px 0;
  }
  .section-tight{padding:36px 0;}
  @media (min-width:1024px){
    .section{padding:80px 0;}
  }
  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:20px;
    flex-wrap:wrap;
    margin-bottom:32px;
  }
  .section-head h2{
    font-size:clamp(1.35rem,2.4vw,1.9rem);
    line-height:1.3;
    font-weight:700;
  }
  .section-head p{
    margin-top:10px;
    font-size:14.5px;
    color:var(--ink-500);
    max-width:640px;
  }
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:12px;
    letter-spacing:0.04em;
    color:var(--brand-500);
    margin-bottom:12px;
  }
  .eyebrow::before{
    content:"";
    width:18px;height:2px;
    border-radius:2px;
    background:var(--brand-500);
  }
  /* ---------- index + list layout ---------- */
  .guide-layout{
    display:grid;
    grid-template-columns:1fr;
    gap:28px;
    align-items:start;
  }
  @media (min-width:1024px){
    .guide-layout{grid-template-columns:290px 1fr;gap:44px;}
  }
  .index-panel{
    border-radius:var(--radius-md);
    border:1px solid var(--line);
    background:linear-gradient(180deg,rgba(16,26,44,0.9),rgba(10,18,32,0.9));
    box-shadow:var(--shadow-card);
    padding:20px;
  }
  @media (min-width:1024px){
    .index-panel{position:sticky;top:88px;}
  }
  .index-panel h2{
    font-size:14px;
    letter-spacing:0.04em;
    color:var(--ink-500);
    font-weight:600;
    margin-bottom:14px;
  }
  .index-list li + li{border-top:1px solid var(--line-soft);}
  .index-list a{
    display:flex;
    align-items:baseline;
    gap:12px;
    padding:12px 6px;
    border-left:3px solid transparent;
    transition:transform .18s ease,border-color .18s ease,background .18s ease;
  }
  .index-list a:hover{
    border-left-color:var(--brand-500);
    transform:translateX(2px);
    background:rgba(23,224,192,0.05);
  }
  .index-num{
    font-family:var(--font-mono);
    font-size:12.5px;
    color:var(--ink-500);
    flex-shrink:0;
  }
  .index-text{
    font-size:14.5px;
    color:var(--ink-100);
    line-height:1.6;
  }
  .index-panel .btn{margin-top:18px;width:100%;}
  .entry-stream{
    display:flex;
    flex-direction:column;
    gap:16px;
  }
  .entry-card{
    border-radius:var(--radius-md);
    border:1px solid var(--line);
    background:var(--bg-700);
    box-shadow:var(--shadow-card);
    padding:22px;
    transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  }
  .entry-card:hover{
    transform:translateX(3px);
    border-color:var(--line-hover);
    box-shadow:var(--shadow-hover);
  }
  .entry-top{
    display:flex;
    align-items:center;
    gap:14px;
    margin-bottom:12px;
  }
  .entry-idx{
    font-family:var(--font-mono);
    font-size:13px;
    color:var(--brand-500);
    padding:3px 9px;
    border-radius:8px;
    background:rgba(23,224,192,0.1);
    border:1px solid rgba(23,224,192,0.22);
    flex-shrink:0;
  }
  .entry-card h3{
    font-size:1.15rem;
    line-height:1.4;
    font-weight:600;
  }
  .entry-card .entry-desc{
    font-size:15px;
    line-height:1.85;
    color:var(--ink-300);
    margin-bottom:16px;
  }
  .entry-foot{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:14px;
    flex-wrap:wrap;
    padding-top:14px;
    border-top:1px solid var(--line-soft);
  }
  .entry-tags{display:flex;gap:8px;flex-wrap:wrap;}
  .entry-more{
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-size:14px;
    color:var(--brand-500);
    transition:gap .18s ease,color .18s ease;
  }
  .entry-more:hover{gap:11px;color:var(--brand-600);}
  .entry-media{
    margin-bottom:16px;
    border-radius:var(--radius-sm);
    overflow:hidden;
    aspect-ratio:16/9;
    border:1px solid var(--line);
  }
  .entry-media img{width:100%;height:100%;object-fit:cover;}
  /* ---------- metric cards ---------- */
  .metric-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:18px;
  }
  @media (min-width:640px){.metric-grid{grid-template-columns:repeat(2,1fr);}}
  @media (min-width:1024px){.metric-grid{grid-template-columns:repeat(4,1fr);}}
  .metric-card{
    border-radius:var(--radius-md);
    border:1px solid var(--line);
    background:var(--bg-700);
    padding:22px;
    box-shadow:var(--shadow-card);
    transition:border-color .2s ease,transform .2s ease;
  }
  .metric-card:hover{border-color:var(--line-hover);transform:translateY(-3px);}
  .metric-label{
    font-size:13px;
    color:var(--ink-500);
    margin-bottom:12px;
  }
  .metric-value{
    font-family:var(--font-mono);
    font-size:1.7rem;
    font-weight:700;
    color:var(--ink-100);
    line-height:1.2;
    letter-spacing:-0.01em;
  }
  .metric-value .unit{
    font-family:var(--font-sans);
    font-size:13px;
    color:var(--ink-500);
    margin-left:6px;
    font-weight:400;
  }
  .metric-note{
    margin-top:10px;
    font-size:13.5px;
    line-height:1.7;
    color:var(--ink-300);
  }
  /* ---------- steps ---------- */
  .steps{
    display:grid;
    grid-template-columns:1fr;
    gap:16px;
  }
  @media (min-width:768px){.steps{grid-template-columns:repeat(2,1fr);}}
  @media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);}}
  .step-card{
    position:relative;
    border-radius:var(--radius-md);
    border:1px solid var(--line);
    background:linear-gradient(165deg,rgba(22,35,58,0.85),rgba(10,18,32,0.9));
    padding:22px;
    overflow:hidden;
  }
  .step-card::before{
    content:"";
    position:absolute;
    top:0;left:0;right:0;
    height:2px;
    background:linear-gradient(90deg,var(--brand-500),rgba(122,92,255,0.7));
    opacity:0.75;
  }
  .step-num{
    font-family:var(--font-mono);
    font-size:12.5px;
    color:var(--warn-400);
    margin-bottom:12px;
    display:block;
  }
  .step-card h3{font-size:1.05rem;margin-bottom:8px;}
  .step-card p{font-size:14px;line-height:1.8;color:var(--ink-300);}
  /* ---------- FAQ ---------- */
  .faq-list{
    border-top:1px solid var(--line-soft);
  }
  .faq-item{border-bottom:1px solid var(--line-soft);}
  .faq-item summary{
    display:flex;
    align-items:center;
    gap:16px;
    padding:20px 8px;
    cursor:pointer;
    list-style:none;
    transition:background .2s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{background:rgba(255,255,255,0.03);}
  .faq-item .q-num{
    font-family:var(--font-mono);
    font-size:13px;
    color:var(--ink-500);
    flex-shrink:0;
  }
  .faq-item .q-text{
    flex:1;
    font-size:16px;
    font-weight:600;
    color:var(--ink-100);
    line-height:1.6;
  }
  .faq-item .q-icon{
    width:26px;height:26px;
    display:grid;place-items:center;
    border-radius:8px;
    border:1px solid var(--line);
    color:var(--brand-500);
    flex-shrink:0;
    transition:transform .22s ease,border-color .22s ease;
  }
  .faq-item[open] .q-icon{
    transform:rotate(45deg);
    border-color:rgba(23,224,192,0.4);
  }
  .faq-item .q-answer{
    padding:0 8px 22px 46px;
    font-size:15px;
    line-height:1.85;
    color:var(--ink-300);
    max-width:760px;
  }
  /* ---------- related categories ---------- */
  .related-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:18px;
  }
  @media (min-width:768px){.related-grid{grid-template-columns:repeat(3,1fr);}}
  .related-card{
    position:relative;
    border-radius:var(--radius-md);
    border:1px solid var(--line);
    background:var(--bg-700);
    padding:22px;
    box-shadow:var(--shadow-card);
    transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
    display:flex;
    flex-direction:column;
    gap:12px;
    min-height:100%;
  }
  .related-card:hover{
    transform:translateY(-4px);
    border-color:var(--line-hover);
    box-shadow:var(--shadow-hover);
  }
  .related-card.current{
    border-color:rgba(23,224,192,0.42);
    background:linear-gradient(160deg,rgba(23,224,192,0.08),rgba(16,26,44,0.95));
  }
  .related-card h3{font-size:1.1rem;}
  .related-card p{font-size:14px;line-height:1.8;color:var(--ink-300);flex:1;}
  .related-card .rel-foot{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:10px;
    padding-top:12px;
    border-top:1px solid var(--line-soft);
    font-size:13px;
    color:var(--ink-500);
  }
  /* ---------- CTA glass ---------- */
  .cta-card{
    position:relative;
    border-radius:var(--radius-lg);
    border:1px solid var(--line);
    background:var(--glass);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    overflow:hidden;
    padding:34px 26px;
    box-shadow:var(--shadow-card);
  }
  .cta-card::before{
    content:"";
    position:absolute;
    top:0;left:0;right:0;
    height:1px;
    background:linear-gradient(90deg,transparent,rgba(23,224,192,0.85),rgba(122,92,255,0.6),transparent);
  }
  .cta-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:26px;
    align-items:center;
  }
  @media (min-width:1024px){.cta-grid{grid-template-columns:1.4fr 1fr;}}
  .cta-card h2{font-size:clamp(1.3rem,2.2vw,1.7rem);margin-bottom:12px;line-height:1.35;}
  .cta-card p{font-size:15px;line-height:1.85;color:var(--ink-300);max-width:560px;}
  .cta-actions{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
  }
  @media (max-width:639px){
    .cta-actions .btn{width:100%;}
  }
  .share-note{
    margin-top:14px;
    font-size:13px;
    color:var(--ink-500);
    min-height:20px;
  }
  /* ---------- footer ---------- */
  .site-footer{
    position:relative;
    z-index:2;
    margin-top:24px;
    background:var(--bg-800);
    border-top:1px solid var(--line-soft);
  }
  .site-footer::before{
    content:"";
    position:absolute;
    top:0;left:0;right:0;
    height:1px;
    background:linear-gradient(90deg,transparent,rgba(23,224,192,0.65),rgba(122,92,255,0.45),transparent);
  }
  .footer-top{
    display:grid;
    grid-template-columns:1fr;
    gap:34px;
    padding-top:52px;
    padding-bottom:40px;
  }
  @media (min-width:768px){
    .footer-top{grid-template-columns:repeat(2,1fr);}
  }
  @media (min-width:1024px){
    .footer-top{grid-template-columns:1.4fr 1fr 1fr 1fr;}
  }
  .footer-brand p{
    margin:16px 0 18px;
    font-size:14px;
    line-height:1.85;
    color:var(--ink-500);
    max-width:360px;
  }
  .footer-social{display:flex;gap:10px;flex-wrap:wrap;}
  .footer-social a{
    padding:6px 14px;
    border-radius:999px;
    border:1px solid var(--line);
    font-size:13px;
    color:var(--ink-300);
    transition:border-color .2s ease,color .2s ease,background .2s ease;
  }
  .footer-social a:hover{
    border-color:var(--line-hover);
    color:var(--brand-500);
    background:rgba(23,224,192,0.07);
  }
  .footer-col h4{
    font-size:14px;
    letter-spacing:0.02em;
    color:var(--ink-100);
    margin-bottom:14px;
    font-weight:600;
  }
  .footer-col a{
    display:block;
    padding:6px 0;
    font-size:14px;
    color:var(--ink-500);
    transition:color .18s ease,transform .18s ease;
  }
  .footer-col a:hover{color:var(--brand-500);transform:translateX(2px);}
  .footer-tags{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
    margin-top:14px;
  }
  .footer-tags span{
    padding:4px 10px;
    border-radius:999px;
    font-size:12px;
    color:var(--ink-500);
    background:rgba(255,255,255,0.04);
    border:1px solid var(--line);
  }
  .footer-bottom{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    flex-wrap:wrap;
    padding-top:20px;
    padding-bottom:26px;
    border-top:1px solid var(--line-soft);
    font-size:13px;
    color:var(--ink-500);
  }
  .to-top{
    width:40px;height:40px;
    display:grid;place-items:center;
    border-radius:50%;
    border:1px solid rgba(23,224,192,0.32);
    color:var(--brand-500);
    background:rgba(23,224,192,0.08);
    box-shadow:0 0 18px rgba(23,224,192,0.22);
    transition:transform .2s ease,background .2s ease;
  }
  .to-top:hover{transform:translateY(-3px);background:rgba(23,224,192,0.16);}
  .scroll-progress{
    position:fixed;
    top:0;left:0;
    height:2px;
    width:0;
    z-index:99;
    background:linear-gradient(90deg,var(--brand-500),var(--accent-500));
    box-shadow:0 0 12px rgba(23,224,192,0.5);
    transition:width .12s linear;
  }
  @media (max-width:1023px){
    .main-nav{display:none;}
  }
  @media (max-width:639px){
    body{font-size:16px;}
    .brand-text{font-size:15px;}
    .entry-card{padding:18px;}
    .cta-card{padding:26px 18px;}
    .faq-item .q-answer{padding-left:8px;}
  }

/* roulang page: category2 */
:root{
  --bg-900:#050A14; --bg-800:#0A1220; --bg-700:#101A2C; --bg-600:#16233A;
  --ink-100:#E8F2FF; --ink-300:#9FB2CC; --ink-500:#6B7C97;
  --brand-500:#17E0C0; --brand-600:#0FBFA6; --brand-700:#0A8F7E;
  --accent-500:#7A5CFF; --warn-400:#FFC24B;
  --line:rgba(255,255,255,.08); --line-hover:rgba(23,224,192,.40); --divider:rgba(255,255,255,.06);
  --glass:rgba(255,255,255,.045);
  --r-lg:22px; --r:16px; --r-sm:11px;
  --sh-card:0 8px 30px rgba(3,10,24,.55);
  --sh-hover:0 14px 40px rgba(3,10,24,.65);
  --glow:0 0 24px rgba(23,224,192,.28);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg-900);color:var(--ink-300);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.85;letter-spacing:0;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
::selection{background:rgba(23,224,192,.28);color:#fff}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:1220px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(5,10,20,.74);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);transition:background .25s ease,border-color .25s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(23,224,192,.55),rgba(122,92,255,.45),transparent);
  opacity:.7;
}
.site-header.scrolled{background:rgba(5,10,20,.93);border-bottom-color:rgba(23,224,192,.22)}
.header-inner{display:flex;align-items:center;gap:18px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand-500),var(--accent-500));
  color:#04160f;font-weight:800;font-size:17px;display:grid;place-items:center;line-height:1;
}
.brand-text{font-weight:700;color:var(--ink-100);font-size:15.5px;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-link{
  position:relative;display:inline-block;padding:9px 13px;border-radius:999px;
  color:var(--ink-300);font-size:14.5px;transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--ink-100);background:rgba(255,255,255,.055)}
.nav-link.active{color:var(--brand-500);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand-500);box-shadow:var(--glow);
}
.nav-item{position:relative}
.mega{
  position:absolute;top:calc(100% + 16px);left:50%;width:780px;
  transform:translateX(-50%) translateY(10px);
  padding:22px;border-radius:20px;z-index:90;
  background:linear-gradient(180deg,rgba(16,26,44,.97),rgba(10,18,32,.97));
  border:1px solid var(--line);box-shadow:0 24px 60px rgba(3,10,24,.72);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  opacity:0;visibility:hidden;transition:opacity .16s ease,transform .16s ease,visibility .16s;
}
.mega::before{
  content:"";position:absolute;top:0;left:26px;right:26px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(23,224,192,.7),transparent);
}
.nav-item:hover .mega,.nav-item:focus-within .mega{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.mega-grid{display:grid;grid-template-columns:1.05fr 1.15fr 1fr;gap:22px}
.mega-col-title{font-size:12px;color:var(--ink-500);letter-spacing:.04em;margin-bottom:10px}
.mega-link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:7px 9px;border-radius:10px;font-size:13.5px;color:var(--ink-300);
  transition:background .18s ease,color .18s ease;
}
.mega-link:hover{background:rgba(23,224,192,.09);color:var(--ink-100)}
.count{font-family:var(--mono);font-size:12px;color:var(--warn-400)}
.mega-news{
  display:block;padding:10px 11px;border-radius:12px;margin-bottom:8px;
  background:rgba(255,255,255,.022);border:1px solid var(--line);
  transition:border-color .18s ease,background .18s ease;
}
.mega-news strong{display:block;font-size:13.5px;color:var(--ink-100);font-weight:600;line-height:1.5}
.mega-news span{font-size:12px;color:var(--ink-500)}
.mega-news:hover{border-color:var(--line-hover);background:rgba(23,224,192,.06)}
.mega-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px;margin-bottom:10px;filter:saturate(.95)}
.mega-card p{font-size:12.5px;line-height:1.7;color:var(--ink-500);margin:0 0 10px}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--ink-300);
  transition:border-color .2s ease,color .2s ease,background .2s ease;cursor:pointer;
}
.icon-btn:hover{border-color:var(--line-hover);color:var(--brand-500);background:rgba(23,224,192,.07)}
.nav-toggle{display:none}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:999px;font-size:14.5px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease,color .2s ease;
}
.btn-primary{background:linear-gradient(135deg,var(--brand-500),var(--brand-600));color:#03231d}
.btn-primary:hover{background:linear-gradient(135deg,var(--brand-600),var(--brand-700));transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);background:var(--brand-700)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line);color:var(--ink-100)}
.btn-ghost:hover{border-color:var(--line-hover);background:rgba(23,224,192,.08)}
.btn-sm{padding:9px 16px;font-size:13px}
.glow{box-shadow:var(--glow)}

/* ---------- breadcrumb & hero ---------- */
.page-hero{
  position:relative;padding:124px 0 66px;overflow:hidden;
  background-image:linear-gradient(180deg,rgba(5,10,20,.80) 0%,rgba(5,10,20,.93) 62%,var(--bg-900) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:linear-gradient(rgba(255,255,255,.9) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:64px 64px;
}
.page-hero > .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);margin-bottom:22px}
.crumb a{color:var(--ink-300);transition:color .2s ease}
.crumb a:hover{color:var(--brand-500)}
.crumb .sep{color:var(--ink-500);opacity:.6}
.crumb .current{color:var(--ink-100)}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  font-size:12.5px;color:var(--brand-500);letter-spacing:.03em;
  background:rgba(23,224,192,.10);border:1px solid rgba(23,224,192,.28);
}
.hero-title{
  font-size:clamp(1.75rem,4vw,3rem);font-weight:800;line-height:1.2;
  letter-spacing:-.01em;color:var(--ink-100);margin:18px 0 0;max-width:820px;
}
.hero-sub{font-size:16.5px;line-height:1.85;color:var(--ink-300);max-width:640px;margin:16px 0 0}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:28px;margin-top:34px;padding-top:26px;
  border-top:1px solid var(--divider);
}
.stat b{display:block;font-family:var(--mono);font-size:1.45rem;font-weight:600;color:var(--warn-400);line-height:1.4}
.stat span{font-size:13px;color:var(--ink-500)}

/* ---------- sections ---------- */
.section{padding:60px 0}
@media(min-width:1024px){.section{padding:82px 0}}
.section-head{max-width:740px;margin-bottom:34px}
.eyebrow{font-size:12.5px;color:var(--brand-500);letter-spacing:.04em;margin-bottom:10px;display:block}
.section-title{font-size:clamp(1.35rem,2.4vw,1.85rem);font-weight:700;line-height:1.35;color:var(--ink-100);margin:0}
.section-desc{margin:14px 0 0;font-size:15.5px;line-height:1.85;color:var(--ink-300);max-width:720px}
.badge{
  display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;
  font-size:12px;line-height:1.7;color:var(--brand-500);
  background:rgba(23,224,192,.10);border:1px solid rgba(23,224,192,.22);
}
.badge-purple{color:#B7A6FF;background:rgba(122,92,255,.14);border-color:rgba(122,92,255,.3)}
.badge-amber{color:var(--warn-400);background:rgba(255,194,75,.12);border-color:rgba(255,194,75,.28)}

/* filter bar */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;
  padding:14px 16px;border-radius:var(--r);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.filter-label{font-size:13px;color:var(--ink-500);margin-right:4px}
.filter{
  padding:8px 16px;border-radius:999px;font-size:13.5px;color:var(--ink-300);
  background:rgba(255,255,255,.035);border:1px solid var(--line);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.filter:hover{color:var(--ink-100);border-color:var(--line-hover)}
.filter.is-active{
  color:#03231d;font-weight:600;border-color:transparent;
  background:linear-gradient(135deg,var(--brand-500),var(--brand-600));
  box-shadow:var(--glow);
}

/* version cards */
.version-grid{display:grid;grid-template-columns:1fr;gap:22px;margin-top:26px}
@media(min-width:900px){.version-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.v-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--bg-700);border:1px solid var(--line);border-radius:var(--r);
  box-shadow:var(--sh-card);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.v-card:hover{transform:translateY(-3px);border-color:var(--line-hover);box-shadow:var(--sh-hover)}
.v-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-800)}
.v-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease}
.v-card:hover .v-thumb img{transform:scale(1.045)}
.v-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.v-title{font-size:1.13rem;font-weight:600;line-height:1.45;color:var(--ink-100);margin:0}
.v-desc{margin:0;font-size:14.5px;line-height:1.85;color:var(--ink-300)}
.v-foot{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:auto;
  padding-top:14px;border-top:1px solid var(--divider);
  font-size:12px;color:var(--ink-500);
}
.v-foot .mono{font-family:var(--mono);color:var(--ink-500)}
.v-foot .link{margin-left:auto;color:var(--brand-500);font-weight:600;transition:color .2s ease}
.v-foot .link:hover{color:var(--brand-600)}

/* metrics */
.metric-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
@media(min-width:900px){.metric-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
.metric{
  padding:22px;border-radius:var(--r);background:var(--bg-800);
  border:1px solid var(--line);box-shadow:var(--sh-card);
  transition:border-color .22s ease,transform .22s ease;
}
.metric:hover{border-color:var(--line-hover);transform:translateY(-2px)}
.metric b{display:block;font-family:var(--mono);font-size:1.7rem;font-weight:600;color:var(--warn-400);line-height:1.3}
.metric strong{display:block;margin-top:8px;font-size:14.5px;color:var(--ink-100);font-weight:600}
.metric span{display:block;margin-top:6px;font-size:13px;line-height:1.75;color:var(--ink-500)}

/* spec list */
.spec-list{margin-top:26px;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--bg-800)}
.spec-row{
  display:grid;grid-template-columns:1fr;gap:6px;padding:18px 22px;
  border-bottom:1px solid var(--divider);
}
@media(min-width:768px){.spec-row{grid-template-columns:200px 1fr;gap:22px;align-items:start}}
.spec-row:last-child{border-bottom:none}
.spec-row dt{font-size:14px;color:var(--ink-100);font-weight:600;margin:0}
.spec-row dd{margin:0;font-size:14.5px;line-height:1.85;color:var(--ink-300)}

/* steps */
.step-list{display:grid;grid-template-columns:1fr;gap:18px;margin-top:26px}
@media(min-width:768px){.step-list{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1100px){.step-list{grid-template-columns:repeat(4,minmax(0,1fr))}}
.step{
  position:relative;padding:22px;border-radius:var(--r);
  background:var(--bg-700);border:1px solid var(--line);box-shadow:var(--sh-card);
}
.step::before{
  content:"";position:absolute;left:22px;right:22px;top:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand-500),rgba(122,92,255,.5));
  opacity:.6;
}
.step b{display:block;font-family:var(--mono);font-size:13px;color:var(--brand-500);margin-bottom:10px}
.step h3{margin:0 0 8px;font-size:1.03rem;font-weight:600;color:var(--ink-100);line-height:1.5}
.step p{margin:0;font-size:14px;line-height:1.85;color:var(--ink-300)}

/* scenes */
.scene-grid{display:grid;grid-template-columns:1fr;gap:20px;margin-top:26px}
@media(min-width:768px){.scene-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.scene{
  padding:24px;border-radius:var(--r);background:var(--bg-800);
  border:1px solid var(--line);transition:border-color .22s ease,background .22s ease;
}
.scene:hover{border-color:var(--line-hover);background:var(--bg-700)}
.scene h3{margin:0 0 10px;font-size:1.05rem;font-weight:600;color:var(--ink-100)}
.scene p{margin:0;font-size:14.5px;line-height:1.85;color:var(--ink-300)}
.scene ul{margin:14px 0 0;padding:0;list-style:none;display:grid;gap:8px}
.scene li{position:relative;padding-left:18px;font-size:13.5px;color:var(--ink-300)}
.scene li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;
  background:var(--brand-500);
}

/* FAQ */
.faq{margin-top:26px;border-top:1px solid var(--divider)}
.faq-item{border-bottom:1px solid var(--divider);transition:background .2s ease}
.faq-item:hover{background:rgba(255,255,255,.022)}
.faq-q{
  display:flex;align-items:flex-start;gap:14px;padding:20px 4px;
  cursor:pointer;list-style:none;font-size:15.5px;font-weight:600;color:var(--ink-100);
}
.faq-q::-webkit-details-marker{display:none}
.faq-idx{font-family:var(--mono);font-size:13px;color:var(--brand-500);padding-top:3px}
.faq-icon{
  margin-left:auto;flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  border:1px solid var(--line);color:var(--brand-500);font-size:14px;line-height:1;
  display:grid;place-items:center;transition:transform .25s ease,border-color .25s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);border-color:var(--line-hover)}
.faq-a{padding:0 4px 22px 34px;font-size:15px;line-height:1.85;color:var(--ink-300)}

/* category switch */
.cat-switch{display:grid;grid-template-columns:1fr;gap:18px;margin-top:26px}
@media(min-width:768px){.cat-switch{grid-template-columns:repeat(3,minmax(0,1fr))}}
.cat-card{
  display:block;padding:24px;border-radius:var(--r);
  background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.015));
  border:1px solid var(--line);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.cat-card:hover{border-color:var(--line-hover);transform:translateY(-3px);box-shadow:var(--sh-hover)}
.cat-card .cat-kicker{font-size:12px;color:var(--ink-500);font-family:var(--mono)}
.cat-card h3{margin:10px 0 8px;font-size:1.08rem;font-weight:600;color:var(--ink-100)}
.cat-card p{margin:0 0 14px;font-size:14px;line-height:1.8;color:var(--ink-300)}
.cat-card .cat-more{font-size:13.5px;font-weight:600;color:var(--brand-500)}

/* CTA panel */
.cta-panel{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  padding:36px 28px;display:grid;gap:26px;
  background:linear-gradient(140deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--line);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-card);
}
@media(min-width:900px){.cta-panel{grid-template-columns:1.4fr 1fr;align-items:center;padding:44px 40px}}
.cta-panel::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(23,224,192,.75),rgba(122,92,255,.5),transparent);
}
.cta-panel h2{margin:0 0 12px;font-size:clamp(1.3rem,2.2vw,1.7rem);font-weight:700;color:var(--ink-100);line-height:1.35}
.cta-panel p{margin:0;font-size:15px;line-height:1.85;color:var(--ink-300);max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-actions .btn{flex:1 1 auto}
@media(min-width:520px){.cta-actions .btn{flex:0 0 auto}}
.share-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.share-chip{
  padding:8px 15px;border-radius:999px;font-size:13px;color:var(--ink-300);
  background:rgba(255,255,255,.04);border:1px solid var(--line);cursor:pointer;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.share-chip:hover{color:var(--ink-100);border-color:var(--line-hover);background:rgba(23,224,192,.07)}
.share-chip.saved{color:var(--warn-400);border-color:rgba(255,194,75,.4);background:rgba(255,194,75,.1)}

/* ---------- footer ---------- */
.site-footer{position:relative;margin-top:20px;background:var(--bg-800);border-top:1px solid var(--line)}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(23,224,192,.6),rgba(122,92,255,.45),transparent);
}
.footer-top{
  display:grid;grid-template-columns:1fr;gap:32px;padding-top:52px;padding-bottom:40px;
}
@media(min-width:768px){.footer-top{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.footer-top{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}}
.footer-brand p{margin:16px 0 0;font-size:14px;line-height:1.85;color:var(--ink-500);max-width:360px}
.footer-social{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.footer-social a{
  padding:6px 14px;border-radius:999px;font-size:12.5px;color:var(--ink-300);
  background:rgba(255,255,255,.04);border:1px solid var(--line);transition:color .2s ease,border-color .2s ease;
}
.footer-social a:hover{color:var(--brand-500);border-color:var(--line-hover)}
.footer-col h4{margin:0 0 14px;font-size:14px;font-weight:600;color:var(--ink-100)}
.footer-col a{display:block;padding:5px 0;font-size:13.5px;color:var(--ink-500);transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:var(--brand-500);transform:translateX(2px)}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-tags span{
  padding:4px 10px;border-radius:999px;font-size:12px;color:var(--ink-500);
  background:rgba(255,255,255,.035);border:1px solid var(--divider);
}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding-top:20px;padding-bottom:26px;border-top:1px solid var(--divider);
  font-size:13px;color:var(--ink-500);
}
.to-top{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  color:var(--brand-500);background:rgba(23,224,192,.1);border:1px solid rgba(23,224,192,.3);
  box-shadow:var(--glow);transition:transform .2s ease,background .2s ease;
}
.to-top:hover{transform:translateY(-2px);background:rgba(23,224,192,.18)}

/* ---------- responsive nav ---------- */
@media(max-width:1023px){
  .nav-toggle{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;
    background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--ink-100);cursor:pointer}
  .main-nav{
    position:fixed;left:0;right:0;top:64px;bottom:0;margin:0;
    flex-direction:column;align-items:stretch;gap:4px;padding:20px;
    background:rgba(5,10,20,.98);backdrop-filter:blur(18px);
    border-top:1px solid var(--line);overflow-y:auto;
    transform:translateY(-8px);opacity:0;visibility:hidden;transition:.22s ease;
  }
  body.nav-open .main-nav{transform:translateY(0);opacity:1;visibility:visible}
  .nav-link{font-size:17px;padding:14px 12px;border-radius:12px}
  .nav-link.active::after{left:12px;right:auto;width:26px;bottom:6px}
  .nav-item .mega{position:static;transform:none;width:auto;opacity:1;visibility:visible;
    box-shadow:none;border:none;background:transparent;padding:6px 0 12px 8px;display:none}
  .nav-item:hover .mega,.nav-item:focus-within .mega{transform:none}
  .mega-grid{grid-template-columns:1fr;gap:14px}
  .mega-card{display:none}
  .header-actions .btn{display:none}
}
@media(max-width:479px){
  .header-inner{height:56px}
  .main-nav{top:56px}
  .brand-text{font-size:14px}
  .hero-stats{gap:20px}
  .page-hero{padding:104px 0 52px}
  .cta-actions .btn{width:100%}
}

/* roulang page: category3 */
:root{
  --bg-900:#050A14;
  --bg-800:#0A1220;
  --bg-700:#101A2C;
  --bg-600:#16233A;
  --ink-100:#E8F2FF;
  --ink-300:#9FB2CC;
  --ink-500:#6B7C97;
  --brand-500:#17E0C0;
  --brand-600:#0FBFA6;
  --brand-700:#0A8F7E;
  --accent-500:#7A5CFF;
  --warn-400:#FFC24B;
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(23,224,192,.40);
  --divider:rgba(255,255,255,.06);
  --glass:rgba(255,255,255,.045);
  --r-xl:24px;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:11px;
  --shadow-card:0 8px 30px rgba(3,10,24,.55);
  --shadow-hover:0 14px 40px rgba(3,10,24,.65);
  --glow:0 0 24px rgba(23,224,192,.28);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-300);
  background:
    radial-gradient(1200px 620px at 12% -12%, rgba(23,224,192,.09), transparent 62%),
    radial-gradient(900px 520px at 92% -6%, rgba(122,92,255,.11), transparent 58%),
    var(--bg-900);
  -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,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size:64px 64px;
  opacity:.55;
  -webkit-mask-image:radial-gradient(circle at 50% 0%, #000 0%, transparent 72%);
  mask-image:radial-gradient(circle at 50% 0%, #000 0%, transparent 72%);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0;color:var(--ink-100);font-weight:700}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:3px;border-radius:6px}
.site-header,.site-main,.site-footer{position:relative;z-index:1}

.container{max-width:1220px;margin:0 auto;padding:0 32px}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;height:64px;
  background:rgba(5,10,20,.74);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--divider);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(23,224,192,.55),rgba(122,92,255,.4),transparent);
}
.header-inner{max-width:1220px;margin:0 auto;padding:0 32px;height:64px;display:flex;align-items:center;gap:20px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  font-weight:800;font-size:16px;color:#04120F;
  background:linear-gradient(135deg,var(--brand-500),var(--accent-500));
  box-shadow:0 0 18px rgba(23,224,192,.25);
}
.brand-text{font-size:16px;font-weight:700;color:var(--ink-100);letter-spacing:.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:10px}
.nav-item{position:relative}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:64px;padding:0 14px;
  font-size:15px;color:var(--ink-300);transition:color .2s ease;
}
.nav-link:hover{color:var(--ink-100)}
.nav-link.active{color:var(--brand-500)}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;border-radius:2px;
  background:var(--brand-500);box-shadow:0 0 12px rgba(23,224,192,.75);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;flex:none;
  border:1px solid var(--line);background:transparent;color:var(--ink-300);
  cursor:pointer;transition:border-color .2s,color .2s,background .2s;
}
.icon-btn:hover{border-color:var(--line-hover);color:var(--brand-500);background:rgba(23,224,192,.06)}
.nav-toggle{display:none}

/* Mega 面板 */
.mega{
  position:absolute;top:100%;left:0;width:820px;padding:24px;border-radius:var(--r-lg);
  background:rgba(10,18,32,.94);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border:1px solid var(--line);
  box-shadow:0 24px 60px rgba(3,10,24,.72);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s ease;
  z-index:60;
}
.mega::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(23,224,192,.7),rgba(122,92,255,.5),transparent);
}
.nav-item:hover .mega,.nav-item:focus-within .mega{opacity:1;visibility:visible;transform:translateY(0)}
.mega-grid{display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:24px}
.mega-col-title{font-size:12px;color:var(--ink-500);letter-spacing:.04em;margin-bottom:10px}
.mega-link{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:9px 10px;border-radius:10px;font-size:14px;color:var(--ink-300);
  transition:background .18s,color .18s;
}
.mega-link:hover{background:var(--bg-600);color:var(--ink-100)}
.mega-link .count{font-family:var(--mono);font-size:12px;color:var(--warn-400)}
.mega-news{display:block;padding:10px;border-radius:10px;transition:background .18s}
.mega-news:hover{background:var(--bg-600)}
.mega-news strong{display:block;font-size:14px;font-weight:600;color:var(--ink-100);line-height:1.5}
.mega-news span{display:block;font-size:12px;color:var(--ink-500);margin-top:4px}
.mega-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:12px}
.mega-card p{font-size:13px;color:var(--ink-300);line-height:1.7;margin:10px 0 12px}

/* ============ 按钮 / 标签 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 20px;border-radius:999px;border:1px solid transparent;
  font-size:14.5px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,background .18s ease,border-color .18s ease,box-shadow .18s ease,color .18s ease;
}
.btn-primary{background:linear-gradient(135deg,var(--brand-500),var(--brand-600));color:#04120F}
.btn-primary:hover{background:linear-gradient(135deg,#24F0D2,var(--brand-600));transform:translateY(-1px)}
.btn-primary:active{background:var(--brand-700);transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line-hover);color:var(--ink-100)}
.btn-ghost:hover{background:rgba(23,224,192,.08);border-color:var(--brand-500)}
.btn-ghost:active{background:rgba(23,224,192,.14)}
.btn-sm{height:36px;padding:0 15px;font-size:13.5px}
.glow{box-shadow:var(--glow)}
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;padding:4px 12px;border-radius:999px;
  background:rgba(23,224,192,.1);border:1px solid rgba(23,224,192,.25);color:var(--brand-500);
}
.badge-accent{background:rgba(122,92,255,.12);border-color:rgba(122,92,255,.3);color:#BCACFF}
.badge-warn{background:rgba(255,194,75,.1);border-color:rgba(255,194,75,.28);color:var(--warn-400)}

/* ============ 主区域 ============ */
.site-main{padding-top:84px}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--ink-500)}
.breadcrumb a{transition:color .18s}
.breadcrumb a:hover{color:var(--brand-500)}
.breadcrumb .sep{color:rgba(255,255,255,.2)}
.breadcrumb .current{color:var(--ink-300)}

/* ============ 页头 ============ */
.page-hero{
  position:relative;margin-top:22px;padding:56px 48px;border-radius:var(--r-xl);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(100deg,rgba(5,10,20,.96) 0%,rgba(5,10,20,.86) 48%,rgba(5,10,20,.62) 100%),
    linear-gradient(180deg,rgba(5,10,20,.2),rgba(5,10,20,.75));
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:48px 48px;
  opacity:.35;
  -webkit-mask-image:linear-gradient(90deg,#000,transparent 78%);
  mask-image:linear-gradient(90deg,#000,transparent 78%);
}
.page-hero > *{position:relative;z-index:1}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.page-title{
  font-size:clamp(1.75rem,4vw,2.75rem);
  font-weight:800;line-height:1.22;letter-spacing:-.01em;color:var(--ink-100);
  max-width:22em;
}
.page-sub{font-size:16.5px;line-height:1.85;color:var(--ink-300);max-width:620px;margin-top:16px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:30px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1)}
.hero-stat b{display:block;font-family:var(--mono);font-size:21px;font-weight:700;color:var(--warn-400);line-height:1.3}
.hero-stat span{font-size:13px;color:var(--ink-500)}

/* ============ 板块 ============ */
.section{margin-top:76px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px}
.sec-title{font-size:clamp(1.35rem,2.4vw,1.85rem);font-weight:700;line-height:1.3}
.sec-title .bar{
  display:inline-block;width:3px;height:.95em;border-radius:2px;margin-right:12px;
  background:var(--brand-500);box-shadow:0 0 12px rgba(23,224,192,.6);vertical-align:-.06em;
}
.sec-desc{font-size:14.5px;color:var(--ink-500);max-width:660px;margin-top:10px;line-height:1.8}

/* 指标卡 */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.metric{
  background:var(--bg-700);border:1px solid var(--line);border-radius:var(--r-md);padding:22px;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.metric:hover{transform:translateY(-2px);border-color:var(--line-hover);box-shadow:var(--shadow-hover)}
.metric .num{font-family:var(--mono);font-size:26px;font-weight:700;color:var(--warn-400);line-height:1.2}
.metric .lbl{font-size:14.5px;font-weight:600;color:var(--ink-100);margin-top:10px}
.metric .txt{font-size:13px;color:var(--ink-500);line-height:1.75;margin-top:6px}

/* 时间轴条目区 */
.timeline{position:relative;padding-left:34px}
.timeline::before{
  content:"";position:absolute;left:9px;top:10px;bottom:10px;width:1px;
  background:linear-gradient(180deg,rgba(23,224,192,.55),rgba(122,92,255,.35),transparent);
}
.tl-item{
  position:relative;display:grid;grid-template-columns:150px 1fr;gap:26px;
  padding:24px 18px 24px 0;border-bottom:1px solid var(--divider);
  transition:background .2s ease;
}
.tl-item:hover{background:rgba(255,255,255,.022)}
.tl-item::before{
  content:"";position:absolute;left:-30px;top:34px;width:9px;height:9px;border-radius:50%;
  background:var(--bg-900);border:1px solid var(--brand-500);box-shadow:0 0 10px rgba(23,224,192,.5);
}
.tl-side{display:flex;flex-direction:column;gap:8px;align-items:flex-start}
.tl-num{font-family:var(--mono);font-size:13px;color:var(--warn-400);letter-spacing:.06em}
.tl-tag{
  font-size:12px;padding:2px 10px;border-radius:999px;
  background:rgba(23,224,192,.09);border:1px solid rgba(23,224,192,.22);color:var(--brand-500);white-space:nowrap;
}
.tl-body h3{font-size:17px;font-weight:600;line-height:1.45}
.tl-body > p{font-size:14.5px;color:var(--ink-300);line-height:1.85;margin-top:10px}
.tl-points{display:grid;gap:6px;margin-top:12px}
.tl-points li{position:relative;padding-left:16px;font-size:14px;color:var(--ink-500);line-height:1.8}
.tl-points li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;
  background:var(--brand-500);opacity:.72;
}

/* 流程步骤 */
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{
  position:relative;padding:26px 22px;border-radius:var(--r-md);overflow:hidden;
  background:var(--bg-700);border:1px solid var(--line);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.step::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(23,224,192,.6),rgba(122,92,255,.35),transparent);
}
.step:hover{transform:translateY(-2px);border-color:var(--line-hover);box-shadow:var(--shadow-hover)}
.step .s-idx{font-family:var(--mono);font-size:12px;color:var(--ink-500);letter-spacing:.08em}
.step h3{font-size:16px;font-weight:600;margin:10px 0 8px}
.step p{font-size:14px;color:var(--ink-300);line-height:1.8}

/* 风险与应对 */
.risk{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.risk-card{
  display:grid;grid-template-columns:176px 1fr;gap:20px;align-items:center;
  padding:20px;border-radius:var(--r-md);background:var(--bg-700);border:1px solid var(--line);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.risk-card:hover{transform:translateY(-2px);border-color:var(--line-hover);box-shadow:var(--shadow-hover)}
.risk-card img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:12px}
.risk-card h3{font-size:16.5px;font-weight:600;line-height:1.45}
.risk-card p{font-size:14px;color:var(--ink-300);line-height:1.8;margin-top:8px}
.risk-card .link{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;color:var(--brand-500);margin-top:10px}

/* FAQ */
.faq{border-top:1px solid var(--divider)}
.faq-item{border-bottom:1px solid var(--divider)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;
  padding:20px 10px;transition:background .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:rgba(255,255,255,.03)}
.faq-num{font-family:var(--mono);font-size:13px;color:var(--brand-500);flex:none}
.faq-q{font-size:16.5px;font-weight:600;color:var(--ink-100);line-height:1.5}
.faq-icon{position:relative;width:18px;height:18px;flex:none;margin-left:auto;transition:transform .22s ease}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink-500);border-radius:2px;transition:background .2s ease;
}
.faq-icon::before{left:0;right:0;top:8px;height:1.5px}
.faq-icon::after{top:0;bottom:0;left:8px;width:1.5px}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-item[open] .faq-icon::before,.faq-item[open] .faq-icon::after{background:var(--brand-500)}
.faq-body{padding:0 10px 24px 45px;font-size:15px;line-height:1.85;color:var(--ink-300);max-width:820px}

/* 相关分类 */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.rel-card{
  display:flex;gap:16px;padding:22px;border-radius:var(--r-md);
  background:var(--bg-700);border:1px solid var(--line);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.rel-card:hover{transform:translateY(-2px);border-color:var(--line-hover);box-shadow:var(--shadow-hover)}
.rel-idx{font-family:var(--mono);font-size:20px;font-weight:700;color:var(--warn-400);line-height:1.2;flex:none}
.rel-card h3{font-size:15.5px;font-weight:600;line-height:1.45}
.rel-card p{font-size:13.5px;color:var(--ink-500);line-height:1.75;margin-top:6px}
.rel-card .arrow{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--brand-500);margin-top:10px}
.rel-card.current{border-color:rgba(23,224,192,.35);background:linear-gradient(180deg,rgba(23,224,192,.06),rgba(16,26,44,.9))}

/* CTA 玻璃卡 */
.cta-card{
  position:relative;overflow:hidden;border-radius:var(--r-xl);padding:40px;
  background:var(--glass);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  display:grid;grid-template-columns:1.5fr 1fr;gap:32px;align-items:center;
  box-shadow:var(--shadow-card);
}
.cta-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(23,224,192,.65),rgba(122,92,255,.4),transparent);
}
.cta-card h2{font-size:clamp(1.25rem,2.2vw,1.6rem);font-weight:700;line-height:1.35}
.cta-card p{font-size:14.5px;color:var(--ink-300);line-height:1.85;margin-top:12px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.fav-btn.is-active{background:rgba(255,194,75,.14);border-color:rgba(255,194,75,.45);color:var(--warn-400);box-shadow:0 0 18px rgba(255,194,75,.22)}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:88px;position:relative;
  background:linear-gradient(180deg,rgba(10,18,32,.55),rgba(5,10,20,.98));
  border-top:1px solid var(--divider);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(23,224,192,.5),rgba(122,92,255,.35),transparent);
}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding:58px 0 42px}
.footer-brand p{font-size:14px;color:var(--ink-500);line-height:1.85;margin:16px 0 18px;max-width:350px}
.footer-social{display:flex;flex-wrap:wrap;gap:10px}
.footer-social a{
  font-size:13px;padding:6px 15px;border-radius:999px;border:1px solid var(--line);
  color:var(--ink-300);transition:border-color .2s,color .2s,background .2s;
}
.footer-social a:hover{border-color:var(--line-hover);color:var(--brand-500);background:rgba(23,224,192,.06)}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:14px}
.footer-col a{display:block;font-size:13.5px;color:var(--ink-500);padding:5px 0;transition:color .18s,transform .18s}
.footer-col a:hover{color:var(--brand-500);transform:translateX(2px)}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-tags span{font-size:12px;color:var(--ink-500);border:1px solid var(--line);padding:3px 10px;border-radius:999px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0 28px;border-top:1px solid var(--divider);font-size:13px;color:var(--ink-500);
}
.to-top{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;flex:none;
  border:1px solid var(--line);color:var(--ink-300);transition:all .2s ease;
}
.to-top:hover{color:#04120F;background:var(--brand-500);border-color:transparent;box-shadow:var(--glow)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .mega{width:720px}
}
@media (max-width:1023px){
  .container{padding:0 20px}
  .header-inner{padding:0 20px;gap:12px}
  .nav-toggle{display:grid}
  .main-nav{
    position:fixed;top:64px;left:0;right:0;bottom:0;margin-left:0;
    flex-direction:column;align-items:stretch;gap:0;padding:10px 20px 48px;
    background:rgba(5,10,20,.98);
    -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
    overflow-y:auto;transform:translateX(100%);visibility:hidden;
    transition:transform .26s ease,visibility .26s ease;
  }
  .nav-open .main-nav{transform:translateX(0);visibility:visible}
  .nav-link{height:auto;padding:16px 4px;font-size:17px;border-bottom:1px solid var(--divider)}
  .nav-link.active::after{display:none}
  .mega{
    position:static;width:100%;opacity:1;visibility:visible;transform:none;
    padding:12px 0 18px;background:transparent;border:0;box-shadow:none;
    -webkit-backdrop-filter:none;backdrop-filter:none;
  }
  .mega::before{display:none}
  .mega-grid{grid-template-columns:1fr;gap:18px}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .process{grid-template-columns:repeat(2,1fr)}
  .risk{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
  .cta-card{grid-template-columns:1fr;padding:32px}
  .cta-actions{justify-content:flex-start}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 34px}
  .page-hero{padding:44px 28px}
}
@media (max-width:767px){
  .site-main{padding-top:76px}
  .hero-stats{gap:24px}
  .tl-item{grid-template-columns:1fr;gap:12px;padding:22px 10px 22px 0}
  .tl-item::before{top:28px}
  .risk-card{grid-template-columns:1fr}
  .risk-card img{aspect-ratio:16/9}
}
@media (max-width:639px){
  .brand-text{font-size:14.5px}
  .metrics{grid-template-columns:1fr}
  .process{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .hero-actions .btn,.cta-actions .btn{width:100%}
  .section{margin-top:60px}
  .page-hero{padding:36px 20px}
}