/* roulang page: index */
:root{
  --bg:#070B14;
  --surface:#0E1526;
  --line:rgba(255,255,255,.08);
  --primary:#14E0C0;
  --primary-2:#0AA88F;
  --accent:#FF8A3D;
  --hot:#FF4D6D;
  --text:#E8EFF8;
  --muted:#8C9CB4;
  --dim:#5C6B84;
  --radius-card:18px;
  --radius-btn:12px;
  --radius-img:14px;
  --shadow-card:0 10px 30px -18px rgba(0,0,0,.8);
  --shadow-glow:0 10px 28px -10px rgba(20,224,192,.45);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'PingFang SC','HarmonyOS Sans','Microsoft YaHei',system-ui,sans-serif;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
h1,h2,h3,h4{line-height:1.25;margin:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}

.container-x{max-width:1240px;margin:0 auto;padding:0 20px}
@media(min-width:1024px){.container-x{padding:0 32px}}

.glass{
  background:rgba(255,255,255,.055);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.09);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.glass-soft{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.07);
}
.page-grid-bg{
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:48px 48px;
  opacity:.5;
}

/* 导航 */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  border-bottom:1px solid var(--line);
  background:rgba(7,11,20,.62);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{
  background:rgba(7,11,20,.86);
  box-shadow:0 18px 40px -30px rgba(0,0,0,.95);
}
.nav-grid{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;height:72px;gap:16px}
.nav-side{display:none;align-items:center;gap:28px}
.nav-side.right{justify-content:flex-end}
@media(min-width:1024px){.nav-side{display:flex}}
.nav-link{
  position:relative;font-size:15px;color:var(--muted);padding:6px 0;
  transition:color .2s ease;
}
.nav-link:hover{color:var(--text)}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;
  background:var(--primary);border-radius:2px;transition:width .25s ease;
}
.nav-link:hover::after{width:20px}
.nav-link.active{color:var(--text);font-weight:600}
.nav-link.active::after{width:20px}
.brand-mark{
  display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;
  letter-spacing:.2px;white-space:nowrap;
}
.brand-dot{
  width:24px;height:24px;border-radius:8px;flex:0 0 24px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 0 18px rgba(20,224,192,.45);
  position:relative;
}
.brand-dot::after{
  content:"";position:absolute;inset:7px;border-radius:3px;background:#04121A;opacity:.75;
}
.menu-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  color:var(--text);
}
@media(min-width:1024px){.menu-toggle{display:none}}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);
  background:rgba(7,11,20,.94);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
}
.mobile-drawer.open{display:block}
.mobile-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  height:52px;font-size:16px;color:var(--text);border-bottom:1px solid var(--line);
}
.mobile-drawer a:last-child{border-bottom:none}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;transition:all .22s ease;white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#04121A;box-shadow:var(--shadow-glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 16px -10px rgba(20,224,192,.5)}
.btn-ghost{
  border:1px solid rgba(255,255,255,.14);color:var(--text);
  background:rgba(255,255,255,.03);
}
.btn-ghost:hover{border-color:rgba(20,224,192,.55);color:var(--primary)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;color:var(--primary);
  font-size:14px;font-weight:600;
}
.link-arrow i{transition:transform .22s ease}
.link-arrow:hover i{transform:translateX(4px)}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;
}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:5px;
  padding:3px 10px;border-radius:999px;font-size:11.5px;line-height:1.7;
  border:1px solid rgba(20,224,192,.4);
  background:rgba(20,224,192,.12);color:var(--primary);
}
.badge.amber{border-color:rgba(255,138,61,.4);background:rgba(255,138,61,.12);color:var(--accent)}
.badge.hot{border-color:rgba(255,77,109,.4);background:rgba(255,77,109,.13);color:var(--hot)}
.badge.plain{border-color:rgba(255,255,255,.14);background:rgba(255,255,255,.05);color:var(--muted)}

/* 板块 */
.section{padding:64px 0}
@media(min-width:1024px){.section{padding:96px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap}
.section-title{font-size:26px;font-weight:700}
@media(min-width:1024px){.section-title{font-size:30px}}
.section-sub{color:var(--muted);font-size:14.5px;margin-top:8px}

/* Hero */
.hero{position:relative;padding:118px 0 56px;overflow:hidden}
@media(min-width:1024px){.hero{padding:150px 0 76px}}
.hero-glow{
  position:absolute;border-radius:50%;filter:blur(90px);pointer-events:none;
}
.hero-glow.a{width:420px;height:420px;background:rgba(20,224,192,.16);top:-120px;left:-80px}
.hero-glow.b{width:360px;height:360px;background:rgba(255,138,61,.13);bottom:-140px;right:-60px}
.hero-grid{position:relative;display:grid;gap:40px}
@media(min-width:1024px){
  .hero-grid{grid-template-columns:7fr 5fr;align-items:center;gap:48px}
}
.hero h1{font-size:32px;font-weight:700;letter-spacing:.2px}
@media(min-width:768px){.hero h1{font-size:42px}}
@media(min-width:1280px){.hero h1{font-size:48px}}
.hero-lede{color:var(--muted);font-size:16.5px;margin-top:18px;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:38px}
.hero-stat b{display:block;font-family:'Inter',sans-serif;font-size:26px;font-weight:700;color:var(--primary)}
.hero-stat span{font-size:13px;color:var(--dim)}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;height:300px;object-fit:cover;border-radius:var(--radius-card);
  border:1px solid rgba(255,255,255,.09);
}
@media(min-width:1024px){.hero-visual img{height:400px}}
.hero-float{
  position:absolute;left:-8px;bottom:-22px;width:min(280px,84%);
  padding:16px 18px;border-radius:16px;
  background:rgba(14,21,38,.82);
  border:1px solid rgba(255,255,255,.12);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
}
.hero-float strong{display:block;font-size:15px}
.hero-float p{font-size:13px;color:var(--muted);margin-top:4px}

/* 横向轨道 */
.rail-wrap{position:relative}
.rail{
  display:flex;gap:20px;overflow-x:auto;padding:6px 2px 20px;
  scroll-snap-type:x mandatory;scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none}
.rail-card{
  flex:0 0 82%;scroll-snap-align:start;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow-card);
  transition:transform .25s ease,border-color .25s ease;
}
@media(min-width:768px){.rail-card{flex:0 0 46%}}
@media(min-width:1024px){.rail-card{flex:0 0 31%}}
.rail-card:hover{transform:translateY(-4px);border-color:rgba(20,224,192,.4)}
.rail-card .thumb{position:relative;height:180px;overflow:hidden}
.rail-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.rail-card:hover .thumb img{transform:scale(1.04)}
.rail-card .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(7,11,20,.85),rgba(7,11,20,.05));
}
.rail-card .body{padding:16px 18px}
.rail-card h3{font-size:17px;font-weight:600}
.rail-card p{font-size:13.5px;color:var(--muted);margin-top:6px;line-height:1.7}
.rail-btn{
  position:absolute;top:76px;width:44px;height:44px;border-radius:50%;
  display:none;align-items:center;justify-content:center;
  background:rgba(14,21,38,.85);border:1px solid rgba(255,255,255,.14);
  color:var(--text);z-index:5;transition:all .2s ease;
}
.rail-btn:hover{border-color:var(--primary);color:var(--primary)}
.rail-btn.prev{left:-6px}
.rail-btn.next{right:-6px}
@media(min-width:1024px){.rail-btn{display:flex}}

/* 目录卡 */
.catalog-grid{display:grid;gap:16px}
@media(min-width:768px){.catalog-grid{grid-template-columns:1fr 1fr;column-gap:32px}}
.catalog-item{
  display:flex;gap:18px;align-items:flex-start;padding:20px 22px;
  border-radius:var(--radius-card);border:1px solid var(--line);
  background:rgba(255,255,255,.03);transition:all .25s ease;
}
.catalog-item:hover{
  transform:translateY(-4px);border-color:rgba(20,224,192,.38);
  background:rgba(20,224,192,.05);
}
.catalog-item:nth-child(odd){transform:translateY(0)}
@media(min-width:768px){.catalog-item:nth-child(odd){transform:translateY(24px)}}
.catalog-item:nth-child(odd):hover{transform:translateY(20px)}
.catalog-no{
  font-family:'Inter',sans-serif;font-size:30px;font-weight:700;line-height:1;
  color:rgba(20,224,192,.34);-webkit-text-stroke:1px rgba(20,224,192,.5);
  flex:0 0 auto;
}
.catalog-item h3{font-size:17px;font-weight:600}
.catalog-item p{font-size:13.5px;color:var(--muted);margin-top:6px}
.catalog-item .go{margin-left:auto;color:var(--dim);transition:all .22s ease}
.catalog-item:hover .go{color:var(--primary);transform:translateX(4px)}

/* 精选 */
.pick-grid{display:grid;gap:20px}
@media(min-width:1024px){.pick-grid{grid-template-columns:repeat(12,1fr)}}
.pick-card{
  position:relative;display:block;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow-card);
  transition:transform .25s ease,border-color .25s ease;
}
.pick-card:hover{transform:translateY(-4px);border-color:rgba(20,224,192,.4)}
@media(min-width:1024px){
  .pick-card.large{grid-column:span 6}
  .pick-card.small{grid-column:span 3}
}
.pick-card img{width:100%;object-fit:cover;transition:transform .4s ease}
.pick-card.large img{height:260px}
.pick-card.small img{height:170px}
.pick-card:hover img{transform:scale(1.04)}
.pick-body{padding:20px 22px 22px}
.pick-body h3{font-size:19px;font-weight:600}
.pick-card.small .pick-body h3{font-size:16.5px}
.pick-body p{font-size:14px;color:var(--muted);margin-top:8px}
.pick-meta{display:flex;align-items:center;gap:10px;margin-top:16px;font-size:12.5px;color:var(--dim)}

/* 最新信息 */
.cms-grid{display:grid;gap:20px}
@media(min-width:768px){.cms-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.cms-grid{grid-template-columns:repeat(3,1fr)}}
.cms-card{
  display:flex;flex-direction:column;padding:22px;border-radius:var(--radius-card);
  border:1px solid var(--line);background:var(--surface);
  box-shadow:var(--shadow-card);transition:all .25s ease;
}
.cms-card:hover{transform:translateY(-4px);border-color:rgba(20,224,192,.4)}
.cms-card h3{font-size:17px;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-card p{
  font-size:13.5px;color:var(--muted);margin-top:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cms-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--dim);
}
.cms-empty{
  padding:56px 24px;text-align:center;border-radius:var(--radius-card);
  border:1px dashed rgba(255,255,255,.14);background:rgba(255,255,255,.02);
}
.cms-empty i{font-size:30px;color:rgba(20,224,192,.5)}
.cms-empty p{color:var(--muted);margin-top:14px;font-size:15px}

/* 推荐轨道（文字条） */
.text-rail{display:flex;gap:16px;overflow-x:auto;padding-bottom:16px;scrollbar-width:none}
.text-rail::-webkit-scrollbar{display:none}
.text-rail a{
  flex:0 0 78%;padding:18px 20px;border-radius:14px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  border-left:3px solid rgba(20,224,192,.5);transition:all .25s ease;
}
@media(min-width:768px){.text-rail a{flex:0 0 40%}}
@media(min-width:1024px){.text-rail a{flex:0 0 24%}}
.text-rail a:hover{border-left-color:var(--primary);background:rgba(20,224,192,.06);transform:translateY(-3px)}
.text-rail strong{display:block;font-size:16px;font-weight:600}
.text-rail span{display:block;font-size:13px;color:var(--muted);margin-top:6px}

/* CTA 横幅 */
.cta-band{
  position:relative;overflow:hidden;border-radius:22px;padding:40px 32px;
  border:1px solid rgba(255,255,255,.1);
  background:linear-gradient(120deg,rgba(20,224,192,.12),rgba(255,138,61,.08) 65%,rgba(255,255,255,.03));
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
@media(min-width:1024px){.cta-band{padding:52px 48px}}
.cta-band h2{font-size:24px;font-weight:700}
@media(min-width:1024px){.cta-band h2{font-size:28px}}
.cta-band p{color:var(--muted);font-size:15px;margin-top:10px;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.share-icons{display:flex;gap:10px;margin-top:26px}
.share-icons button{
  width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.14);
  color:var(--muted);background:rgba(255,255,255,.03);transition:all .22s ease;
}
.share-icons button:hover{color:var(--primary);border-color:rgba(20,224,192,.5)}

/* FAQ */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:20px 4px;font-size:16px;font-weight:500;position:relative;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-item summary::after{
  content:"+";font-size:20px;color:var(--primary);transition:transform .25s ease;line-height:1;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item[open] summary{color:var(--primary)}
.faq-item[open]::before{content:"";display:block;height:0}
.faq-body{padding:0 4px 22px;font-size:15px;color:var(--muted);line-height:1.85;max-width:720px}
.faq-item{position:relative}
.faq-item[open]::after{
  content:"";position:absolute;left:-14px;top:22px;width:2px;height:22px;
  background:var(--primary);border-radius:2px;
}

/* 页脚 */
.site-footer{
  margin-top:40px;border-top:1px solid var(--line);
  background:#050810;position:relative;overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;top:-160px;left:50%;transform:translateX(-50%);
  width:520px;height:240px;background:rgba(20,224,192,.1);filter:blur(90px);
}
.footer-grid{
  position:relative;display:grid;gap:36px;padding:64px 0 40px;
}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.3px}
.footer-links a{display:block;font-size:14px;color:var(--muted);padding:5px 0;transition:color .2s ease}
.footer-links a:hover{color:var(--primary)}
.footer-about{font-size:14px;color:var(--muted);margin-top:14px;max-width:300px;line-height:1.8}
.qr-box{
  width:96px;height:96px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);display:flex;align-items:center;justify-content:center;
  color:var(--dim);font-size:12px;text-align:center;line-height:1.5;
}
.footer-bottom{
  position:relative;border-top:1px solid var(--line);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--dim);
}

/* roulang page: article */
:root{
    --bg:#070B14;
    --surface:#0E1526;
    --surface-2:#0B1220;
    --line:rgba(255,255,255,.08);
    --line-2:rgba(255,255,255,.16);
    --primary:#14E0C0;
    --primary-2:#0AA88F;
    --accent:#FF8A3D;
    --hot:#FF4D6D;
    --text:#E8EFF8;
    --muted:#8C9CB4;
    --dim:#5C6B84;
    --glass:rgba(255,255,255,.055);
    --radius-card:18px;
    --radius-btn:12px;
    --radius-img:14px;
    --container:1240px;
    --shadow-card:0 10px 30px -18px rgba(0,0,0,.8);
    --shadow-primary:0 10px 28px -10px rgba(20,224,192,.45);
  }

  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg) !important;
    color:var(--text) !important;
    font-family:'PingFang SC','HarmonyOS Sans','Microsoft YaHei',system-ui,-apple-system,sans-serif !important;
    line-height:1.8 !important;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{text-decoration:none;color:inherit;}
  button{font-family:inherit;}
  ::selection{background:rgba(20,224,192,.3);color:#fff;}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

  ::-webkit-scrollbar{width:10px;height:10px;}
  ::-webkit-scrollbar-track{background:#050810;}
  ::-webkit-scrollbar-thumb{background:rgba(20,224,192,.25);border-radius:999px;border:2px solid #050810;}
  ::-webkit-scrollbar-thumb:hover{background:rgba(20,224,192,.45);}

  .container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}

  /* ---------- 头部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(7,11,20,.62);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
    transition:background .3s ease, box-shadow .3s ease;
  }
  .site-header.scrolled{
    background:rgba(7,11,20,.86);
    box-shadow:0 14px 34px -26px rgba(0,0,0,.95);
  }
  .nav-grid{
    display:grid;
    grid-template-columns:1fr auto 1fr;
    align-items:center;
    gap:16px;
    min-height:74px;
  }
  .nav-side{display:flex;align-items:center;gap:4px;}
  .nav-side.right{justify-content:flex-end;}
  .nav-link{
    position:relative;
    font-size:15px;
    color:var(--muted);
    padding:10px 12px;
    border-radius:10px;
    transition:color .22s ease, background .22s ease;
    white-space:nowrap;
  }
  .nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
  .nav-link.active{color:var(--text);}
  .nav-link.active::after{
    content:"";
    position:absolute;left:12px;right:12px;bottom:3px;height:2px;
    background:var(--primary);border-radius:2px;
    box-shadow:0 0 12px rgba(20,224,192,.85);
  }
  .brand-mark{
    display:inline-flex;align-items:center;gap:10px;
    font-size:18px;font-weight:700;color:var(--text);
    letter-spacing:.3px;white-space:nowrap;
    transition:opacity .22s ease;
  }
  .brand-mark:hover{opacity:.9;}
  .brand-dot{
    width:10px;height:10px;border-radius:3px;
    background:var(--primary);
    box-shadow:0 0 14px rgba(20,224,192,.9);
    flex:none;
  }
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 20px;
    border-radius:var(--radius-btn);
    font-size:15px;font-weight:600;
    border:1px solid transparent;cursor:pointer;
    transition:transform .22s ease, filter .22s ease, box-shadow .22s ease, border-color .22s ease, color .22s ease, background .22s ease;
  }
  .btn-sm{height:40px;padding:0 16px;font-size:14px;}
  .btn-primary{
    background:linear-gradient(135deg,var(--primary),var(--primary-2));
    color:#04121A;
    box-shadow:var(--shadow-primary);
  }
  .btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);}
  .btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px -14px rgba(20,224,192,.7);}
  .btn-ghost{
    background:rgba(255,255,255,.04);
    border-color:var(--line-2);
    color:var(--text);
  }
  .btn-ghost:hover{border-color:rgba(20,224,192,.6);color:var(--primary);transform:translateY(-2px);}
  .btn-ghost:active{transform:translateY(0);}
  .menu-toggle{
    display:none;
    width:44px;height:44px;align-items:center;justify-content:center;
    border-radius:12px;border:1px solid var(--line-2);
    background:rgba(255,255,255,.04);color:var(--text);font-size:17px;cursor:pointer;
  }
  .mobile-drawer{
    display:none;
    border-top:1px solid var(--line);
    background:rgba(7,11,20,.97);
    backdrop-filter:blur(14px);
  }
  .mobile-drawer.open{display:block;}
  .mobile-drawer a{
    display:flex;align-items:center;justify-content:space-between;
    height:52px;font-size:16px;color:var(--text);
    border-bottom:1px solid var(--line);
    padding:0 2px;
  }
  .mobile-drawer a:last-child{border-bottom:none;}
  .mobile-drawer a:hover{color:var(--primary);}

  /* ---------- 通用组件 ---------- */
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    font-size:12px;line-height:1;
    padding:7px 12px;border-radius:999px;
    border:1px solid var(--line-2);
    color:var(--muted);
    background:rgba(255,255,255,.04);
    white-space:nowrap;
  }
  .badge.primary{border-color:rgba(20,224,192,.45);color:var(--primary);background:rgba(20,224,192,.1);}
  .badge.amber{border-color:rgba(255,138,61,.45);color:var(--accent);background:rgba(255,138,61,.1);}
  .badge.hot{border-color:rgba(255,77,109,.45);color:var(--hot);background:rgba(255,77,109,.1);}
  .badge.plain{border-color:var(--line-2);color:var(--muted);background:rgba(255,255,255,.04);}

  .section-title{
    font-size:28px;font-weight:700;line-height:1.3;margin:0;
    letter-spacing:.2px;
  }
  .section-sub{color:var(--muted);font-size:15px;margin-top:10px;}

  /* ---------- 文章头部 ---------- */
  .article-head{
    position:relative;
    padding:52px 0 40px;
    overflow:hidden;
    border-bottom:1px solid var(--line);
    background:linear-gradient(180deg,rgba(14,21,38,.9) 0%,rgba(7,11,20,.2) 100%);
  }
  .article-head::before,
  .article-head::after{
    content:"";position:absolute;border-radius:50%;filter:blur(90px);pointer-events:none;
  }
  .article-head::before{
    width:420px;height:420px;top:-180px;left:-120px;background:rgba(20,224,192,.12);
  }
  .article-head::after{
    width:360px;height:360px;top:-140px;right:-100px;background:rgba(255,138,61,.1);
  }
  .article-head .container-x{position:relative;z-index:2;}

  .breadcrumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13px;color:var(--dim);margin-bottom:20px;
  }
  .breadcrumb a{color:var(--muted);transition:color .2s ease;}
  .breadcrumb a:hover{color:var(--primary);}
  .breadcrumb .sep{color:var(--dim);opacity:.7;}
  .breadcrumb .current{color:var(--dim);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

  .article-title{
    font-size:clamp(30px,3.6vw,48px);
    line-height:1.28;
    font-weight:700;
    margin:0 0 22px;
    letter-spacing:.2px;
    max-width:900px;
  }
  .meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
  .meta-item{
    display:inline-flex;align-items:center;gap:7px;
    font-size:13px;color:var(--muted);
    padding:7px 12px;border-radius:999px;
    background:rgba(255,255,255,.04);
    border:1px solid var(--line);
  }
  .meta-item i{color:var(--primary);font-size:12px;}

  /* ---------- 正文布局 ---------- */
  .article-wrap{padding:56px 0 0;}
  .article-layout{
    display:grid;
    grid-template-columns:minmax(0,760px) 320px;
    gap:56px;
    justify-content:center;
    align-items:start;
  }
  .article-col{min-width:0;}

  .article-lead{
    margin:0 0 32px;
    padding:20px 22px;
    border-radius:var(--radius-card);
    background:var(--glass);
    border:1px solid var(--line);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
    color:#C8D5E6;
    font-size:15.5px;
    line-height:1.85;
    display:-webkit-box;
    -webkit-line-clamp:5;
    -webkit-box-orient:vertical;
    overflow:hidden;
  }

  .article-body{font-size:16px;color:#D6E0EE;}
  .article-body p{margin:18px 0;line-height:1.85;}
  .article-body h2{
    font-size:20px;font-weight:700;line-height:1.45;
    margin:40px 0 16px;
    padding-left:12px;
    border-left:3px solid var(--primary);
    color:var(--text);
  }
  .article-body h3{
    font-size:17px;font-weight:600;line-height:1.5;
    margin:28px 0 12px;color:var(--text);
  }
  .article-body h4{font-size:16px;font-weight:600;margin:22px 0 10px;color:var(--text);}
  .article-body ul,
  .article-body ol{margin:16px 0 16px 24px;padding:0;}
  .article-body li{margin:8px 0;line-height:1.8;}
  .article-body li::marker{color:var(--primary);}
  .article-body a{color:var(--primary);border-bottom:1px solid rgba(20,224,192,.35);transition:border-color .2s ease;}
  .article-body a:hover{border-color:var(--primary);}
  .article-body blockquote{
    margin:24px 0;padding:16px 20px;
    border-left:3px solid var(--primary);
    background:rgba(20,224,192,.06);
    border-radius:0 12px 12px 0;
    color:var(--muted);
  }
  .article-body blockquote p{margin:6px 0;}
  .article-body img{
    width:100%;border-radius:var(--radius-img);
    margin:24px auto;
    border:1px solid var(--line);
  }
  .article-body figure{margin:24px 0;}
  .article-body figcaption{
    text-align:center;font-size:13px;color:var(--dim);margin-top:10px;
  }
  .article-body hr{border:none;border-top:1px solid var(--line);margin:36px 0;}
  .article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px;}
  .article-body th,
  .article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
  .article-body th{background:rgba(255,255,255,.05);color:var(--text);font-weight:600;}
  .article-body strong{color:#fff;}

  /* 空态 */
  .empty-state{
    padding:56px 28px;
    text-align:center;
    border-radius:var(--radius-card);
    background:var(--glass);
    border:1px solid var(--line);
  }
  .empty-state i{font-size:34px;color:var(--dim);}
  .empty-state h2{font-size:20px;margin:18px 0 8px;font-weight:700;}
  .empty-state p{color:var(--muted);font-size:14.5px;margin:0 0 22px;}

  /* 文末标签与分享 */
  .article-foot{
    margin-top:44px;padding-top:26px;
    border-top:1px solid var(--line);
    display:flex;flex-wrap:wrap;gap:18px;
    align-items:center;justify-content:space-between;
  }
  .tag-row{display:flex;flex-wrap:wrap;gap:10px;}
  .share-row{display:flex;align-items:center;gap:10px;}
  .share-label{font-size:13px;color:var(--dim);}
  .share-btn{
    width:40px;height:40px;border-radius:12px;
    display:inline-flex;align-items:center;justify-content:center;
    background:rgba(255,255,255,.04);
    border:1px solid var(--line-2);
    color:var(--muted);cursor:pointer;font-size:15px;
    transition:color .2s ease, border-color .2s ease, transform .2s ease;
  }
  .share-btn:hover{color:var(--primary);border-color:rgba(20,224,192,.6);transform:translateY(-2px);}
  .back-row{margin-top:30px;}

  /* ---------- 侧栏 ---------- */
  .article-aside{min-width:0;}
  .aside-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
  .aside-card{
    border-radius:var(--radius-card);
    background:var(--glass);
    border:1px solid var(--line);
    box-shadow:var(--shadow-card), inset 0 1px 0 rgba(255,255,255,.06);
    padding:20px;
  }
  .aside-title{
    font-size:15px;font-weight:700;color:var(--text);
    display:flex;align-items:center;gap:8px;margin:0 0 14px;
  }
  .aside-title i{color:var(--primary);font-size:13px;}
  .aside-list{list-style:none;margin:0;padding:0;}
  .aside-list li+li{border-top:1px solid var(--line);}
  .aside-list a{
    display:flex;align-items:center;justify-content:space-between;
    font-size:14.5px;color:var(--muted);padding:11px 0;
    transition:color .2s ease, padding-left .2s ease;
  }
  .aside-list a:hover{color:var(--primary);padding-left:4px;}
  .aside-list a i{font-size:11px;color:var(--dim);}

  .hot-item{
    display:flex;align-items:center;gap:10px;
    padding:11px 0;font-size:14.5px;color:var(--muted);
    border-top:1px solid var(--line);
    transition:color .2s ease;
  }
  .hot-item:first-of-type{border-top:none;}
  .hot-item:hover{color:var(--text);}
  .hot-bar{
    width:3px;height:14px;border-radius:2px;flex:none;
    background:linear-gradient(180deg,var(--primary),var(--primary-2));
    box-shadow:0 0 10px rgba(20,224,192,.8);
    transition:height .22s ease;
  }
  .hot-item:hover .hot-bar{height:20px;}

  /* ---------- 相关推荐 ---------- */
  .related-section{padding:88px 0 0;}
  .related-head{margin-bottom:28px;display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;}
  .rec-grid{
    display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;
  }
  .rec-card{
    border-radius:var(--radius-card);
    background:var(--glass);
    border:1px solid var(--line);
    box-shadow:var(--shadow-card), inset 0 1px 0 rgba(255,255,255,.06);
    overflow:hidden;
    transition:transform .26s ease, border-color .26s ease, box-shadow .26s ease;
  }
  .rec-card:hover{
    transform:translateY(-4px);
    border-color:rgba(20,224,192,.4);
    box-shadow:0 22px 44px -26px rgba(0,0,0,.95);
  }
  .rec-thumb{display:block;aspect-ratio:16/10;overflow:hidden;}
  .rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
  .rec-card:hover .rec-thumb img{transform:scale(1.04);}
  .rec-body{padding:18px 20px 20px;}
  .rec-body h3{
    font-size:18px;font-weight:600;line-height:1.5;margin:12px 0 8px;color:var(--text);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .rec-body h3 a{transition:color .2s ease;}
  .rec-body h3 a:hover{color:var(--primary);}
  .rec-body p{
    font-size:14px;color:var(--muted);line-height:1.75;margin:0 0 14px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .rec-meta{display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--dim);}

  /* ---------- CTA 带 ---------- */
  .cta-section{padding:88px 0 0;}
  .cta-inner{
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
    padding:38px 40px;
    border-radius:22px;
    background:linear-gradient(135deg,rgba(20,224,192,.1) 0%,rgba(14,21,38,.75) 55%,rgba(255,138,61,.09) 100%);
    border:1px solid var(--line-2);
    box-shadow:0 26px 60px -40px rgba(0,0,0,.95), inset 0 1px 0 rgba(255,255,255,.07);
  }
  .cta-inner h2{font-size:26px;font-weight:700;margin:0 0 10px;line-height:1.35;}
  .cta-inner p{margin:0;color:var(--muted);font-size:15px;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    position:relative;
    margin-top:96px;
    padding-top:64px;
    background:#050810;
    border-top:1px solid var(--line);
  }
  .site-footer::before{
    content:"";position:absolute;top:-1px;left:50%;transform:translateX(-50%);
    width:520px;height:1px;
    background:linear-gradient(90deg,transparent,rgba(20,224,192,.7),transparent);
  }
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
  .footer-about{font-size:14px;color:var(--muted);line-height:1.8;margin:14px 0 0;max-width:330px;}
  .footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px;}
  .footer-links a{
    display:block;font-size:14px;color:var(--muted);padding:6px 0;
    transition:color .2s ease, transform .2s ease;
  }
  .footer-links a:hover{color:var(--primary);transform:translateX(3px);}
  .qr-box{
    width:96px;height:96px;border-radius:14px;
    border:1px dashed var(--line-2);
    background:rgba(255,255,255,.03);
    display:flex;align-items:center;justify-content:center;
    text-align:center;font-size:12px;line-height:1.6;color:var(--dim);
  }
  .footer-bottom{
    display:flex;flex-wrap:wrap;gap:12px;
    align-items:center;justify-content:space-between;
    margin-top:52px;padding:22px 0 34px;
    border-top:1px solid var(--line);
    font-size:13px;color:var(--dim);
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1023px){
    .nav-side{display:none;}
    .nav-grid{grid-template-columns:1fr auto;min-height:66px;}
    .menu-toggle{display:inline-flex;}
    .article-layout{grid-template-columns:minmax(0,1fr);gap:40px;}
    .aside-sticky{position:static;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
    .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  }
  @media (max-width:767px){
    .container-x{padding:0 20px;}
    .article-head{padding:36px 0 30px;}
    .article-wrap{padding:40px 0 0;}
    .related-section,.cta-section{padding-top:60px;}
    .site-footer{margin-top:64px;padding-top:48px;}
    .rec-grid{grid-template-columns:minmax(0,1fr);}
    .cta-inner{padding:28px 22px;}
    .cta-inner h2{font-size:22px;}
    .article-lead{padding:16px 18px;font-size:15px;}
    .article-title{margin-bottom:16px;}
    .footer-grid{grid-template-columns:minmax(0,1fr);}
    .footer-bottom{justify-content:flex-start;}
    .section-title{font-size:23px;}
  }

/* roulang page: category1 */
:root{
    --bg:#070B14;
    --surface:#0E1526;
    --panel:rgba(255,255,255,.055);
    --line:rgba(255,255,255,.08);
    --line-strong:rgba(255,255,255,.14);
    --primary:#14E0C0;
    --primary-2:#0AA88F;
    --accent:#FF8A3D;
    --hot:#FF4D6D;
    --text:#E8EFF8;
    --muted:#8C9CB4;
    --dim:#5C6B84;
    --r-card:18px;
    --r-btn:12px;
    --r-img:14px;
    --shadow-card:0 10px 30px -18px rgba(0,0,0,.8);
    --shadow-glow:0 10px 28px -10px rgba(20,224,192,.45);
    --sec:88px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:'PingFang SC','HarmonyOS Sans','Microsoft YaHei',system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;border:0;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;}
  h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:.2px;}
  p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  ::selection{background:rgba(20,224,192,.28);color:#02110E;}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
  ::-webkit-scrollbar{width:10px;height:10px;}
  ::-webkit-scrollbar-track{background:#060A11;}
  ::-webkit-scrollbar-thumb{background:rgba(20,224,192,.28);border-radius:999px;border:2px solid #060A11;}
  ::-webkit-scrollbar-thumb:hover{background:rgba(20,224,192,.45);}

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

  /* ============ 导航 ============ */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(7,11,20,.72);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
    transition:background .3s ease,box-shadow .3s ease;
  }
  .site-header.scrolled{background:rgba(7,11,20,.9);box-shadow:0 14px 34px -22px rgba(0,0,0,.95);}
  .nav-grid{
    display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
    gap:12px;min-height:72px;
  }
  .nav-side{display:flex;align-items:center;gap:22px;}
  .nav-side.left{justify-content:flex-start;}
  .nav-side.right{justify-content:flex-end;}
  .nav-link{
    position:relative;display:inline-block;padding:6px 0;
    font-size:14px;color:var(--muted);white-space:nowrap;
    transition:color .25s ease;
  }
  .nav-link::after{
    content:'';position:absolute;left:50%;bottom:-3px;transform:translateX(-50%);
    width:0;height:2px;border-radius:2px;background:var(--primary);
    transition:width .25s ease;
  }
  .nav-link:hover{color:var(--text);}
  .nav-link:hover::after{width:20px;}
  .nav-link.active{color:var(--text);font-weight:500;}
  .nav-link.active::after{width:20px;}
  .brand-mark{
    display:inline-flex;align-items:center;gap:10px;
    font-size:18px;font-weight:700;color:var(--text);white-space:nowrap;
  }
  .brand-dot{
    width:24px;height:24px;border-radius:8px;flex:0 0 24px;
    background:linear-gradient(135deg,var(--primary),var(--accent));
    box-shadow:0 0 18px rgba(20,224,192,.5);
  }
  .menu-toggle{
    display:none;align-items:center;justify-content:center;
    width:44px;height:44px;border-radius:12px;
    border:1px solid var(--line);background:var(--panel);color:var(--text);
    font-size:16px;cursor:pointer;transition:border-color .25s ease,color .25s ease;
  }
  .menu-toggle:hover{border-color:rgba(20,224,192,.45);color:var(--primary);}
  .mobile-drawer{
    display:none;
    border-top:1px solid var(--line);
    background:rgba(7,11,20,.96);
    backdrop-filter:blur(16px);
    padding:8px 0 18px;
  }
  .mobile-drawer.open{display:block;}
  .mobile-drawer a{
    display:flex;align-items:center;justify-content:space-between;
    min-height:52px;font-size:16px;color:var(--muted);
    border-bottom:1px solid var(--line);
    transition:color .2s ease;
  }
  .mobile-drawer a:last-child{border-bottom:0;}
  .mobile-drawer a:hover,.mobile-drawer a.active{color:var(--primary);}
  @media(max-width:1023px){
    .nav-side{display:none;}
    .nav-grid{grid-template-columns:1fr auto;min-height:64px;}
    .brand-mark{font-size:16px;}
    .menu-toggle{display:inline-flex;}
  }
  @media(min-width:1024px){
    .menu-toggle{display:none !important;}
    .mobile-drawer{display:none !important;}
  }

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
    transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
  }
  .btn:active{transform:translateY(1px);box-shadow:none;}
  .btn-primary{
    background:linear-gradient(135deg,var(--primary),var(--primary-2));
    color:#04121A;box-shadow:var(--shadow-glow);
  }
  .btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);}
  .btn-ghost{
    background:rgba(255,255,255,.04);
    border-color:var(--line-strong);color:var(--text);
  }
  .btn-ghost:hover{border-color:rgba(20,224,192,.5);color:var(--primary);transform:translateY(-2px);}
  .btn-sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:10px;}
  .text-link{
    display:inline-flex;align-items:center;gap:6px;
    color:var(--primary);font-size:14px;font-weight:500;
  }
  .text-link i{transition:transform .22s ease;}
  .text-link:hover i{transform:translateX(4px);}

  /* ============ 徽章 ============ */
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 11px;border-radius:999px;font-size:11.5px;line-height:1.6;
    border:1px solid rgba(20,224,192,.35);
    background:rgba(20,224,192,.12);color:#7BF3E0;white-space:nowrap;
  }
  .badge.accent{border-color:rgba(255,138,61,.35);background:rgba(255,138,61,.12);color:#FFB07A;}
  .badge.hot{border-color:rgba(255,77,109,.35);background:rgba(255,77,109,.12);color:#FF8098;}
  .badge.plain{border-color:var(--line);background:rgba(255,255,255,.05);color:var(--muted);}

  /* ============ 分类页 Hero ============ */
  .cat-hero{position:relative;overflow:hidden;padding:52px 0 60px;}
  @media(min-width:1024px){.cat-hero{padding:84px 0 96px;}}
  .cat-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5;}
  .cat-hero-mask{
    position:absolute;inset:0;
    background:
      radial-gradient(900px 460px at 12% 0%,rgba(20,224,192,.16),transparent 62%),
      radial-gradient(700px 420px at 92% 18%,rgba(255,138,61,.13),transparent 60%),
      linear-gradient(115deg,rgba(7,11,20,.95) 0%,rgba(7,11,20,.86) 46%,rgba(7,11,20,.68) 100%);
  }
  .cat-hero-grid{position:relative;display:grid;grid-template-columns:1fr;gap:30px;align-items:center;}
  @media(min-width:1024px){.cat-hero-grid{grid-template-columns:7fr 5fr;gap:48px;}}
  .crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--dim);flex-wrap:wrap;}
  .crumb a{color:var(--muted);transition:color .2s ease;}
  .crumb a:hover{color:var(--primary);}
  .crumb span.sep{color:rgba(255,255,255,.22);}
  .crumb .now{color:var(--text);}
  .cat-hero h1{
    margin-top:18px;
    font-size:30px;line-height:1.3;font-weight:700;letter-spacing:.2px;
  }
  @media(min-width:768px){.cat-hero h1{font-size:40px;}}
  @media(min-width:1024px){.cat-hero h1{font-size:48px;line-height:1.24;}}
  .cat-hero .lead{
    margin-top:18px;max-width:620px;font-size:15.5px;line-height:1.9;color:var(--muted);
  }
  @media(min-width:1024px){.cat-hero .lead{font-size:16px;}}
  .btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
  .glass-panel{
    background:var(--panel);
    border:1px solid rgba(255,255,255,.09);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow-card);
    backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
    border-radius:var(--r-card);
    padding:22px 22px 24px;
  }
  .glass-panel .panel-title{
    font-size:13px;color:var(--dim);letter-spacing:.4px;margin-bottom:14px;
    display:flex;align-items:center;gap:8px;
  }
  .glass-panel .panel-title i{color:var(--primary);}
  .check-list li{
    display:flex;gap:12px;align-items:flex-start;
    padding:12px 0;border-bottom:1px solid var(--line);
    font-size:14px;color:var(--muted);line-height:1.75;
  }
  .check-list li:last-child{border-bottom:0;padding-bottom:0;}
  .check-list i{color:var(--primary);font-size:13px;margin-top:6px;flex:0 0 auto;}

  /* ============ 板块 ============ */
  .section{padding:56px 0;}
  @media(min-width:1024px){.section{padding:var(--sec) 0;}}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px;flex-wrap:wrap;}
  .section-title{font-size:24px;font-weight:700;}
  @media(min-width:1024px){.section-title{font-size:30px;}}
  .section-sub{margin-top:10px;font-size:14.5px;color:var(--muted);max-width:640px;line-height:1.8;}

  /* ============ 数据速览条 ============ */
  .stat-strip{
    display:grid;grid-template-columns:repeat(2,1fr);gap:1px;
    background:var(--line);border:1px solid var(--line);
    border-radius:var(--r-card);overflow:hidden;
  }
  @media(min-width:900px){.stat-strip{grid-template-columns:repeat(4,1fr);}}
  .stat-item{background:#0A1navy;background:#0A1120;padding:24px 20px;}
  .stat-num{font-family:Inter,'PingFang SC',sans-serif;font-size:30px;font-weight:700;color:var(--primary);line-height:1.1;}
  .stat-num small{font-size:14px;color:var(--muted);font-weight:500;margin-left:4px;}
  .stat-label{margin-top:8px;font-size:13.5px;color:var(--muted);}

  /* ============ 条目卡片 ============ */
  .entry-card{
    display:flex;flex-direction:column;overflow:hidden;
    background:var(--panel);
    border:1px solid rgba(255,255,255,.09);
    border-radius:var(--r-card);
    box-shadow:var(--shadow-card);
    transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
  }
  .entry-card:hover{
    transform:translateY(-4px);
    border-color:rgba(20,224,192,.4);
    box-shadow:0 18px 40px -22px rgba(0,0,0,.95),0 0 0 1px rgba(20,224,192,.08);
  }
  .entry-cover{position:relative;aspect-ratio:16/10;overflow:hidden;background:#0A1120;flex:0 0 auto;}
  .entry-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
  .entry-card:hover .entry-cover img{transform:scale(1.04);}
  .entry-cover .cover-tag{
    position:absolute;left:14px;top:14px;
  }
  .entry-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1 1 auto;}
  .entry-title{font-size:17px;font-weight:600;line-height:1.45;}
  .entry-wide .entry-title{font-size:19px;}
  .entry-desc{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.8;}
  .entry-meta{
    margin-top:auto;padding-top:16px;margin-top:16px;
    border-top:1px solid var(--line);
    display:flex;align-items:center;justify-content:space-between;gap:12px;
  }
  .entry-time{font-size:12.5px;color:var(--dim);}
  .entry-link{font-size:13.5px;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}
  .entry-link i{transition:transform .22s ease;}
  .entry-card:hover .entry-link i{transform:translateX(4px);}
  @media(min-width:1024px){
    .entry-wide .entry-cover{aspect-ratio:16/8;}
  }

  /* ============ 流程步骤 ============ */
  .step-list{display:grid;grid-template-columns:1fr;gap:18px;}
  @media(min-width:768px){.step-list{grid-template-columns:repeat(2,1fr);}}
  @media(min-width:1024px){.step-list{grid-template-columns:repeat(4,1fr);}}
  .step-item{
    position:relative;padding:24px 22px 26px;
    background:var(--panel);border:1px solid rgba(255,255,255,.09);
    border-radius:var(--r-card);box-shadow:var(--shadow-card);
    transition:border-color .28s ease,transform .28s ease;
  }
  .step-item:hover{border-color:rgba(255,138,61,.4);transform:translateY(-4px);}
  .step-num{
    font-family:Inter,sans-serif;font-size:32px;font-weight:700;
    color:rgba(20,224,192,.38);line-height:1;
  }
  .step-title{margin-top:14px;font-size:16.5px;font-weight:600;}
  .step-text{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.8;}

  /* ============ 提示条 ============ */
  .notice-bar{
    display:flex;gap:14px;align-items:flex-start;
    padding:20px 22px;border-radius:var(--r-card);
    background:linear-gradient(120deg,rgba(255,138,61,.10),rgba(20,224,192,.07));
    border:1px solid rgba(255,138,61,.22);
  }
  .notice-bar i{color:var(--accent);margin-top:5px;}
  .notice-bar p{font-size:14.5px;color:var(--muted);line-height:1.85;}

  /* ============ FAQ ============ */
  .faq-list{max-width:820px;margin:0 auto;}
  .faq-item{position:relative;border-bottom:1px solid var(--line);}
  .faq-item::before{
    content:'';position:absolute;left:-16px;top:16px;width:2px;height:0;
    background:var(--primary);border-radius:2px;transition:height .3s ease;
  }
  .faq-item.open::before{height:calc(100% - 32px);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 4px;background:none;border:0;cursor:pointer;text-align:left;
    font-size:16px;font-weight:500;color:var(--text);line-height:1.6;
  }
  .faq-q:hover{color:var(--primary);}
  .faq-q .faq-icon{
    flex:0 0 auto;width:26px;height:26px;border-radius:8px;
    display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);color:var(--primary);font-size:12px;
    transition:transform .3s ease,background .3s ease;
  }
  .faq-item.open .faq-icon{transform:rotate(45deg);background:rgba(20,224,192,.12);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;}
  .faq-item.open .faq-a{max-height:320px;}
  .faq-a-inner{padding:0 4px 22px;font-size:15px;color:var(--muted);line-height:1.85;}

  /* ============ CTA 带 ============ */
  .cta-band{
    display:flex;flex-direction:column;gap:22px;
    padding:30px 24px;border-radius:22px;
    background:linear-gradient(120deg,rgba(20,224,192,.11),rgba(255,138,61,.08));
    border:1px solid rgba(255,255,255,.1);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow-card);
  }
  @media(min-width:900px){
    .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:38px 40px;}
  }
  .cta-band h2{font-size:22px;}
  @media(min-width:1024px){.cta-band h2{font-size:26px;}}
  .cta-band p{margin-top:10px;font-size:14.5px;color:var(--muted);max-width:560px;line-height:1.85;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

  /* ============ 页脚 ============ */
  .site-footer{
    position:relative;margin-top:20px;padding:56px 0 26px;
    background:#050810;border-top:1px solid var(--line);
  }
  .site-footer::before{
    content:'';position:absolute;left:50%;top:0;transform:translateX(-50%);
    width:520px;height:1px;background:linear-gradient(90deg,transparent,rgba(20,224,192,.55),transparent);
  }
  .footer-grid{display:grid;grid-template-columns:1fr;gap:34px;}
  @media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
  @media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}}
  .footer-about{margin-top:14px;font-size:13.5px;color:var(--muted);line-height:1.85;max-width:280px;}
  .footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px;}
  .footer-links{display:flex;flex-direction:column;gap:10px;}
  .footer-links a{font-size:13.5px;color:var(--muted);transition:color .2s ease,transform .2s ease;width:fit-content;}
  .footer-links a:hover{color:var(--primary);transform:translateX(3px);}
  .qr-box{
    width:96px;height:96px;border-radius:14px;
    border:1px dashed rgba(255,255,255,.18);
    background:rgba(255,255,255,.04);
    display:flex;align-items:center;justify-content:center;
    text-align:center;font-size:12px;color:var(--dim);line-height:1.6;
  }
  .footer-bottom{
    margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
    display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
    font-size:13px;color:var(--dim);
  }

  /* ============ 动效 ============ */
  .fade-up{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease;}
  .fade-up.visible{opacity:1;transform:none;}
  @media(prefers-reduced-motion:reduce){
    .fade-up{opacity:1;transform:none;transition:none;}
    html{scroll-behavior:auto;}
  }

/* roulang page: category2 */
:root{
  --bg:#070B14;
  --surface:#0E1526;
  --line:rgba(255,255,255,.08);
  --primary:#14E0C0;
  --primary-2:#0AA88F;
  --accent:#FF8A3D;
  --hot:#FF4D6D;
  --text:#E8EFF8;
  --muted:#8C9CB4;
  --dim:#5C6B84;
  --radius-card:18px;
  --radius-btn:12px;
  --radius-img:14px;
  --shadow-card:0 10px 30px -18px rgba(0,0,0,.8);
  --shadow-primary:0 10px 28px -10px rgba(20,224,192,.45);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'PingFang SC','HarmonyOS Sans','Microsoft YaHei',system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  top:-160px;
  left:-120px;
  width:520px;
  height:520px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(20,224,192,.13),transparent 68%);
  filter:blur(30px);
  pointer-events:none;
  z-index:0;
}
body::after{
  content:"";
  position:fixed;
  bottom:-200px;
  right:-140px;
  width:520px;
  height:520px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,138,61,.10),transparent 70%);
  filter:blur(34px);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;}
::selection{background:rgba(20,224,192,.28);color:#fff;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:#070B14;}
::-webkit-scrollbar-thumb{background:rgba(20,224,192,.24);border-radius:8px;}
::-webkit-scrollbar-thumb:hover{background:rgba(20,224,192,.4);}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

.container-x{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;position:relative;z-index:2;}
@media (min-width:1024px){.container-x{padding:0 32px;}}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(7,11,20,.64);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background .3s ease, box-shadow .3s ease;
}
.site-header.scrolled{
  background:rgba(7,11,20,.86);
  box-shadow:0 10px 30px -22px rgba(0,0,0,.95);
}
.nav-grid{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  height:72px;
}
.nav-side{display:flex;align-items:center;gap:4px;}
.nav-side.left{justify-self:start;}
.nav-side.right{justify-self:end;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 12px;
  font-size:14px;
  color:var(--muted);
  border-radius:10px;
  transition:color .22s ease, background .22s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link.active{color:var(--text);font-weight:600;}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:12px;
  bottom:2px;
  width:20px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 10px rgba(20,224,192,.8);
}
.brand-mark{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:700;
  color:var(--text);
  letter-spacing:.2px;
  white-space:nowrap;
}
.brand-dot{
  width:12px;
  height:12px;
  border-radius:4px;
  background:linear-gradient(135deg,#14E0C0,#0AA88F);
  box-shadow:0 0 14px rgba(20,224,192,.85);
  flex:0 0 auto;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease, filter .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease;
}
.btn:active{transform:translateY(1px);box-shadow:none;}
.btn-primary{
  background:linear-gradient(135deg,#14E0C0,#0AA88F);
  color:#04121A;
  box-shadow:var(--shadow-primary);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);}
.btn-ghost{
  background:rgba(255,255,255,.045);
  border-color:rgba(255,255,255,.13);
  color:var(--text);
}
.btn-ghost:hover{border-color:rgba(20,224,192,.55);color:#CFFAF1;transform:translateY(-2px);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.menu-toggle{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  color:var(--text);
  cursor:pointer;
}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(7,11,20,.94);
  backdrop-filter:blur(16px);
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:52px;
  font-size:16px;
  color:var(--muted);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a:last-child{border-bottom:none;}
.mobile-drawer a:hover{color:var(--primary);}
@media (max-width:1023px){
  .nav-grid{grid-template-columns:1fr auto;height:64px;}
  .nav-side{display:none;}
  .brand-mark{justify-self:start;font-size:16px;}
  .menu-toggle{display:inline-flex;justify-self:end;}
}

/* ============ 通用板块 ============ */
.sec{padding:88px 0;position:relative;z-index:2;}
@media (max-width:767px){.sec{padding:56px 0;}}
.sec-title{
  font-size:30px;
  line-height:1.3;
  font-weight:700;
  margin:0 0 12px;
  letter-spacing:.2px;
}
@media (max-width:767px){.sec-title{font-size:23px;}}
.sec-sub{
  margin:0;
  font-size:15px;
  color:var(--muted);
  max-width:660px;
  line-height:1.85;
}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
  flex-wrap:wrap;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--primary);
  letter-spacing:1px;
  margin-bottom:14px;
  text-transform:uppercase;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 10px rgba(20,224,192,.7);
}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
}
.link-more i{transition:transform .22s ease;}
.link-more:hover i{transform:translateX(4px);}

.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  border:1px solid rgba(20,224,192,.34);
  background:rgba(20,224,192,.12);
  color:#8FF3E3;
  white-space:nowrap;
}
.badge.accent{
  border-color:rgba(255,138,61,.36);
  background:rgba(255,138,61,.12);
  color:#FFC69E;
}
.badge.plain{
  border-color:var(--line);
  background:rgba(255,255,255,.05);
  color:var(--muted);
  height:auto;
  padding:6px 12px;
}

/* ============ 分类 Banner ============ */
.cat-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  padding:64px 0 60px;
}
.cat-hero__bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/coverpic/cover-6.webp');
  background-size:cover;
  background-position:center;
  transform:scale(1.05);
  opacity:.55;
  z-index:0;
}
.cat-hero__overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(120deg,rgba(7,11,20,.92) 0%,rgba(7,11,20,.72) 48%,rgba(7,11,20,.95) 100%);
  z-index:1;
}
.crumb{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--dim);
  margin-bottom:22px;
  flex-wrap:wrap;
}
.crumb a{color:var(--muted);transition:color .2s ease;}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:var(--dim);opacity:.7;}
.crumb .cur{color:var(--text);}
.hero-title{
  font-size:46px;
  line-height:1.25;
  font-weight:700;
  margin:0 0 18px;
  letter-spacing:.2px;
  max-width:860px;
}
.hero-title .hl{
  color:var(--primary);
  text-shadow:0 0 26px rgba(20,224,192,.35);
}
@media (max-width:767px){
  .hero-title{font-size:30px;}
  .cat-hero{padding:44px 0 40px;}
}
.hero-lead{
  margin:0 0 26px;
  max-width:720px;
  font-size:16px;
  color:var(--muted);
  line-height:1.9;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:36px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.stat-num{
  font-family:Inter,system-ui,sans-serif;
  font-size:28px;
  font-weight:700;
  line-height:1.1;
  color:var(--primary);
}
.stat-label{
  font-size:13px;
  color:var(--dim);
  margin-top:6px;
}

/* ============ 非对称 7/5 ============ */
.split{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
@media (max-width:1023px){.split{grid-template-columns:1fr;gap:32px;}}
.check-list{list-style:none;margin:24px 0 0;padding:0;}
.check-list li{
  position:relative;
  padding:0 0 0 32px;
  margin-bottom:16px;
  font-size:15px;
  color:var(--muted);
  line-height:1.85;
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:11px;
  width:14px;
  height:14px;
  border-radius:5px;
  background:linear-gradient(135deg,rgba(20,224,192,.9),rgba(10,168,143,.9));
  box-shadow:0 0 12px rgba(20,224,192,.5);
}
.check-list li strong{color:var(--text);font-weight:600;}
.visual-wrap{position:relative;}
.visual-wrap img{
  width:100%;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  aspect-ratio:4/3;
  object-fit:cover;
}
.glass-float{
  position:absolute;
  left:18px;
  right:18px;
  bottom:18px;
  padding:18px 20px;
  border-radius:16px;
  background:rgba(9,14,26,.78);
  backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.12);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07);
}
.glass-float .t{
  font-size:15px;
  font-weight:600;
  color:var(--text);
  margin-bottom:6px;
  display:flex;
  align-items:center;
  gap:8px;
}
.glass-float .d{
  font-size:13px;
  color:var(--muted);
  line-height:1.75;
  margin:0;
}

/* ============ 大号序号目录 ============ */
.num-list{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:0 40px;
}
.num-item{
  display:flex;
  gap:20px;
  padding:24px 0;
  border-bottom:1px solid var(--line);
  transition:transform .25s ease;
}
.num-item .idx{
  flex:0 0 auto;
  min-width:52px;
  font-family:Inter,system-ui,sans-serif;
  font-size:32px;
  font-weight:700;
  line-height:1;
  color:transparent;
  -webkit-text-stroke:1px rgba(20,224,192,.55);
  padding-top:4px;
}
.num-item h3{
  margin:0 0 8px;
  font-size:18px;
  font-weight:600;
  line-height:1.45;
  color:var(--text);
  transition:color .22s ease;
}
.num-item p{
  margin:0 0 10px;
  font-size:14px;
  color:var(--muted);
  line-height:1.8;
}
.num-item:hover h3{color:var(--primary);}
.num-item:hover{transform:translateX(4px);}
.num-meta{display:flex;flex-wrap:wrap;gap:8px;}
@media (min-width:1024px){
  .num-item:nth-child(odd){transform:translateY(24px);}
  .num-item:nth-child(odd):hover{transform:translateY(24px) translateX(4px);}
}
@media (max-width:1023px){
  .num-list{grid-template-columns:1fr;}
}

/* ============ 设备对照 ============ */
.spec-wrap{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  background:rgba(255,255,255,.028);
  box-shadow:var(--shadow-card);
}
.spec-row{
  display:grid;
  grid-template-columns:1.1fr 1.6fr 1.3fr;
  gap:20px;
  padding:20px 26px;
  border-bottom:1px solid var(--line);
  font-size:14px;
  align-items:start;
}
.spec-row:last-child{border-bottom:none;}
.spec-row.head{
  background:rgba(255,255,255,.045);
  color:var(--dim);
  font-size:13px;
  letter-spacing:.6px;
  font-weight:600;
}
.spec-row.head span{color:var(--dim);}
.spec-v{color:var(--muted);line-height:1.75;}
.spec-main{color:var(--text);font-weight:600;}
.spec-k{display:none;}
@media (max-width:767px){
  .spec-row{grid-template-columns:1fr;gap:10px;padding:18px 20px;}
  .spec-row.head{display:none;}
  .spec-k{display:block;font-size:12px;color:var(--dim);margin-bottom:2px;}
}

/* ============ 横向场景条 ============ */
.scene-head{display:flex;align-items:center;gap:12px;}
.scroll-btn{
  width:44px;
  height:44px;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.05);
  backdrop-filter:blur(12px);
  color:var(--text);
  cursor:pointer;
  transition:border-color .2s ease, color .2s ease, transform .2s ease;
}
.scroll-btn:hover{border-color:rgba(20,224,192,.6);color:var(--primary);transform:translateY(-2px);}
.scene-track{
  display:flex;
  gap:20px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:6px 4px 20px;
  scrollbar-width:none;
}
.scene-track::-webkit-scrollbar{display:none;}
.scene-card{
  flex:0 0 300px;
  scroll-snap-align:start;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease, border-color .25s ease;
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(20,224,192,.4);}
.scene-card img{
  width:100%;
  height:172px;
  object-fit:cover;
  transition:transform .4s ease;
}
.scene-card:hover img{transform:scale(1.04);}
.scene-body{padding:18px 20px 20px;}
.scene-body h3{margin:0 0 8px;font-size:16px;font-weight:600;}
.scene-body p{margin:0;font-size:13.5px;color:var(--muted);line-height:1.78;}
@media (max-width:520px){
  .scene-card{flex:0 0 82%;}
  .scene-card img{height:150px;}
}

/* ============ FAQ ============ */
.faq-list{max-width:820px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);position:relative;}
.faq-item::before{
  content:"";
  position:absolute;
  left:-18px;
  top:14px;
  bottom:14px;
  width:2px;
  border-radius:2px;
  background:var(--primary);
  opacity:0;
  transition:opacity .25s ease;
  box-shadow:0 0 12px rgba(20,224,192,.7);
}
.faq-item.open::before{opacity:1;}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 0;
  background:none;
  border:none;
  color:var(--text);
  font-size:16px;
  font-weight:500;
  text-align:left;
  cursor:pointer;
  line-height:1.6;
}
.faq-q i{
  flex:0 0 auto;
  color:var(--primary);
  font-size:14px;
  transition:transform .28s ease;
}
.faq-item.open .faq-q i{transform:rotate(45deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease, padding .35s ease;
}
.faq-item.open .faq-a{max-height:340px;padding-bottom:22px;}
.faq-a p{
  margin:0;
  font-size:15px;
  color:var(--muted);
  line-height:1.85;
}
@media (max-width:767px){.faq-item::before{left:-12px;}}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  border-radius:24px;
  padding:48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
  border:1px solid rgba(20,224,192,.22);
  background:linear-gradient(115deg,rgba(20,224,192,.10) 0%,rgba(14,21,38,.75) 45%,rgba(255,138,61,.09) 100%);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.cta-band h2{
  margin:0 0 10px;
  font-size:26px;
  font-weight:700;
  line-height:1.35;
}
.cta-band p{
  margin:0;
  font-size:14.5px;
  color:var(--muted);
  max-width:560px;
  line-height:1.85;
}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
@media (max-width:767px){
  .cta-band{padding:30px 22px;}
  .cta-band h2{font-size:21px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  margin-top:40px;
  background:#050810;
  border-top:1px solid var(--line);
  z-index:2;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;
  left:50%;
  transform:translateX(-50%);
  width:420px;
  height:2px;
  background:radial-gradient(ellipse at center,rgba(20,224,192,.75),transparent 72%);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:44px;
  padding:72px 0 40px;
}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;padding:56px 0 32px;}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr;}
}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:var(--text);
  margin-bottom:16px;
}
.footer-links a{
  display:block;
  font-size:14px;
  color:var(--muted);
  padding:7px 0;
  transition:color .2s ease, transform .2s ease;
}
.footer-links a:hover{color:var(--primary);transform:translateX(3px);}
.footer-about{
  font-size:13.5px;
  color:var(--muted);
  line-height:1.85;
  margin:16px 0 0;
  max-width:300px;
}
.qr-box{
  width:96px;
  height:96px;
  border:1px dashed rgba(255,255,255,.22);
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  font-size:12px;
  color:var(--dim);
  line-height:1.6;
  background:rgba(255,255,255,.02);
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  padding:22px 0;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--dim);
}

/* ============ 动效 ============ */
.fade-up{
  opacity:0;
  transform:translateY(18px);
  animation:fadeUp .7s ease forwards;
}
.fade-up.d1{animation-delay:.08s;}
.fade-up.d2{animation-delay:.16s;}
.fade-up.d3{animation-delay:.24s;}
@keyframes fadeUp{
  to{opacity:1;transform:translateY(0);}
}
@media (prefers-reduced-motion:reduce){
  .fade-up{animation:none;opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
    --bg:#070B14;
    --surface:#0E1526;
    --line:rgba(255,255,255,.08);
    --primary:#14E0C0;
    --primary-2:#0AA88F;
    --accent:#FF8A3D;
    --hot:#FF4D6D;
    --text:#E8EFF8;
    --muted:#8C9CB4;
    --dim:#5C6B84;
    --r-card:18px;
    --r-btn:12px;
    --r-img:14px;
    --sh-card:0 10px 30px -18px rgba(0,0,0,.8);
    --sh-primary:0 10px 28px -10px rgba(20,224,192,.45);
    --sec-gap:96px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:'PingFang SC','HarmonyOS Sans','Microsoft YaHei',system-ui,sans-serif;
    font-size:16px;
    line-height:1.8;
    letter-spacing:.2px;
  }
  img{max-width:100%;display:block;border-radius:var(--r-img)}
  a{color:inherit;text-decoration:none}
  button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
  h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:.3px}
  p{margin:0}
  ::selection{background:rgba(20,224,192,.3)}
  a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
    outline:2px solid var(--primary);
    outline-offset:2px;
    border-radius:8px;
  }
  ::-webkit-scrollbar{width:10px;height:10px}
  ::-webkit-scrollbar-track{background:#070B14}
  ::-webkit-scrollbar-thumb{background:rgba(20,224,192,.28);border-radius:999px;border:2px solid #070B14}
  ::-webkit-scrollbar-thumb:hover{background:rgba(20,224,192,.5)}

  .container-x{max-width:1240px;margin:0 auto;padding:0 20px}
  @media (min-width:768px){.container-x{padding:0 32px}}

  .glass{
    background:rgba(255,255,255,.055);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border:1px solid rgba(255,255,255,.09);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--sh-card);
    border-radius:var(--r-card);
  }

  /* ===== 导航 ===== */
  .site-header{
    position:sticky;top:0;z-index:70;
    background:rgba(7,11,20,.62);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
    transition:background .3s ease,box-shadow .3s ease;
  }
  .site-header.scrolled{background:rgba(7,11,20,.9);box-shadow:0 14px 34px -22px rgba(0,0,0,.95)}
  .nav-grid{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px;height:74px}
  .nav-side{display:flex;align-items:center;gap:4px}
  .nav-side.right{justify-content:flex-end}
  .nav-link{
    position:relative;
    display:inline-flex;align-items:center;
    padding:9px 12px;border-radius:10px;
    font-size:15px;color:var(--muted);
    white-space:nowrap;
    transition:color .2s ease,background .2s ease;
  }
  .nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
  .nav-link.active{color:var(--text)}
  .nav-link.active::after{
    content:"";position:absolute;left:50%;bottom:1px;transform:translateX(-50%);
    width:20px;height:2px;border-radius:2px;background:var(--primary);
    box-shadow:0 0 12px rgba(20,224,192,.75);
  }
  .brand-mark{
    display:inline-flex;align-items:center;gap:10px;
    font-weight:700;font-size:18px;color:var(--text);
    letter-spacing:.2px;white-space:nowrap;
  }
  .brand-dot{
    width:10px;height:10px;border-radius:3px;display:inline-block;
    background:linear-gradient(140deg,var(--primary),var(--primary-2));
    box-shadow:0 0 16px rgba(20,224,192,.9);
    flex:0 0 auto;
  }
  .menu-toggle{
    display:none;align-items:center;justify-content:center;
    width:44px;height:44px;border-radius:12px;
    border:1px solid var(--line);color:var(--text);
    background:rgba(255,255,255,.04);
  }
  .menu-toggle:active{transform:translateY(1px)}
  .mobile-drawer{
    display:none;
    border-top:1px solid var(--line);
    background:rgba(7,11,20,.96);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
  }
  .mobile-drawer.open{display:block}
  .mobile-drawer a{
    display:flex;align-items:center;justify-content:space-between;
    min-height:52px;padding:14px 0;font-size:16px;color:var(--muted);
    border-bottom:1px solid var(--line);
  }
  .mobile-drawer a:last-child{border-bottom:none;color:var(--primary)}
  .mobile-drawer a:hover{color:var(--text)}

  /* ===== 按钮 ===== */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;letter-spacing:.3px;
    transition:transform .18s ease,box-shadow .18s ease,filter .18s ease,border-color .18s ease,background .18s ease;
    white-space:nowrap;
  }
  .btn:active{transform:translateY(1px);box-shadow:none}
  .btn-primary{
    background:linear-gradient(135deg,var(--primary),var(--primary-2));
    color:#04121A;box-shadow:var(--sh-primary);
  }
  .btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px)}
  .btn-ghost{
    background:rgba(255,255,255,.04);
    border:1px solid rgba(255,255,255,.14);
    color:var(--text);
  }
  .btn-ghost:hover{border-color:rgba(20,224,192,.6);background:rgba(20,224,192,.08);transform:translateY(-2px)}
  .btn-sm{height:40px;padding:0 18px;font-size:14px}
  .text-link{
    display:inline-flex;align-items:center;gap:6px;
    color:var(--primary);font-size:14px;font-weight:500;
    transition:color .2s ease;
  }
  .text-link i{transition:transform .2s ease}
  .text-link:hover{color:#6DFBE4}
  .text-link:hover i{transform:translateX(4px)}

  /* ===== 徽章 / 标签 ===== */
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 11px;border-radius:999px;
    font-size:12px;line-height:1.5;font-weight:500;
    color:var(--primary);
    background:rgba(20,224,192,.12);
    border:1px solid rgba(20,224,192,.35);
    white-space:nowrap;
  }
  .badge.amber{color:var(--accent);background:rgba(255,138,61,.12);border-color:rgba(255,138,61,.35)}
  .badge.hot{color:var(--hot);background:rgba(255,77,109,.13);border-color:rgba(255,77,109,.38)}
  .badge.plain{color:var(--muted);background:rgba(255,255,255,.05);border-color:var(--line)}

  /* ===== Hero ===== */
  .cat-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
  .cat-hero::before{
    content:"";position:absolute;inset:0;
    background-image:url('/assets/images/coverpic/cover-5.png');
    background-size:cover;background-position:center;
    transform:scale(1.02);
  }
  .cat-hero::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(7,11,20,.78) 0%,rgba(7,11,20,.86) 100%);
  }
  .hero-inner{position:relative;z-index:2;padding:56px 0 60px}
  @media (min-width:1024px){.hero-inner{padding:72px 0 80px}}
  .crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--dim);flex-wrap:wrap}
  .crumb a:hover{color:var(--primary)}
  .crumb .sep{color:rgba(255,255,255,.18)}
  .crumb .current{color:var(--muted)}
  .hero-title{font-size:34px;font-weight:700}
  @media (min-width:1024px){.hero-title{font-size:48px}}
  .hero-title .hl{
    background:linear-gradient(120deg,var(--primary),#7CF6E2);
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .hero-lead{color:var(--muted);font-size:16px;line-height:1.85;max-width:640px}
  .hero-panel{padding:22px}
  .hero-panel .row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px dashed rgba(255,255,255,.1);font-size:14px}
  .hero-panel .row:last-child{border-bottom:none}
  .hero-panel .row span:first-child{color:var(--muted)}
  .hero-panel .row span:last-child{color:var(--text);font-weight:600}

  /* ===== 区块通用 ===== */
  .section{padding:64px 0}
  @media (min-width:1024px){.section{padding:var(--sec-gap) 0}}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:32px}
  .section-title{font-size:26px;font-weight:700}
  @media (min-width:1024px){.section-title{font-size:30px}}
  .section-sub{color:var(--muted);font-size:14px;margin-top:8px;max-width:620px}

  /* ===== 筛选条 ===== */
  .filter-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:14px 16px;border-radius:16px;margin-bottom:32px}
  .filter-btn{
    height:38px;padding:0 16px;border-radius:999px;
    font-size:14px;color:var(--muted);
    border:1px solid var(--line);background:rgba(255,255,255,.03);
    transition:all .2s ease;
  }
  .filter-btn:hover{color:var(--text);border-color:rgba(20,224,192,.45)}
  .filter-btn.active{
    color:#04121A;font-weight:600;
    background:linear-gradient(135deg,var(--primary),var(--primary-2));
    border-color:transparent;box-shadow:0 8px 20px -12px rgba(20,224,192,.9);
  }

  /* ===== 交错瀑布流 ===== */
  .masonry{columns:1;column-gap:24px}
  @media (min-width:700px){.masonry{columns:2}}
  @media (min-width:1080px){.masonry{columns:3}}
  .masonry > *{break-inside:avoid;margin-bottom:24px}
  .topic-card{
    overflow:hidden;
    transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
  }
  .topic-card:hover{transform:translateY(-4px);border-color:rgba(20,224,192,.4);box-shadow:0 18px 40px -24px rgba(20,224,192,.5)}
  .topic-card:hover .topic-cover{transform:scale(1.04)}
  .topic-cover{width:100%;object-fit:cover;border-radius:0;transition:transform .4s ease}
  .cov-tall{height:222px}
  .cov-mid{height:178px}
  .cov-short{height:140px}
  .topic-body{padding:18px 20px 22px}
  .topic-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:10px}
  .topic-meta .time{font-size:12px;color:var(--dim)}
  .topic-title{font-size:18px;font-weight:600;margin-bottom:8px}
  .topic-title a:hover{color:var(--primary)}
  .topic-desc{font-size:14px;color:var(--muted);line-height:1.8;margin-bottom:14px}
  .topic-card.is-hidden{display:none}

  /* ===== 标签云 ===== */
  .tag-cloud-wrap{padding:32px 28px}
  @media (min-width:1024px){.tag-cloud-wrap{padding:40px 36px}}
  .tag-cloud{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:22px}
  .tag-cloud a{
    display:inline-flex;align-items:center;gap:8px;
    border-radius:999px;padding:8px 18px;
    border:1px solid var(--line);
    background:rgba(255,255,255,.03);
    color:var(--muted);
    transition:all .2s ease;
  }
  .tag-cloud a:hover{color:var(--primary);border-color:rgba(20,224,192,.5);background:rgba(20,224,192,.08);transform:translateY(-2px)}
  .tag-lg{font-size:17px;padding:12px 24px !important;color:var(--text) !important;border-color:rgba(20,224,192,.3) !important}
  .tag-md{font-size:15px}
  .tag-sm{font-size:13px}
  .tag-cloud i{font-size:12px;opacity:.8}

  /* ===== FAQ ===== */
  .faq-list{max-width:820px;margin:0 auto}
  .faq-item{position:relative;border-bottom:1px solid var(--line)}
  .faq-item summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:20px 0;font-size:16px;font-weight:500;color:var(--text);
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-icon{
    flex:0 0 auto;width:30px;height:30px;border-radius:9px;
    display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);color:var(--primary);font-size:12px;
    transition:transform .25s ease,background .25s ease;
  }
  .faq-item[open] .faq-icon{transform:rotate(45deg);background:rgba(20,224,192,.12)}
  .faq-item[open]::before{
    content:"";position:absolute;left:-14px;top:20px;bottom:20px;width:2px;
    background:var(--primary);border-radius:2px;box-shadow:0 0 12px rgba(20,224,192,.7);
  }
  .faq-answer{font-size:15px;color:var(--muted);line-height:1.8;padding:0 46px 22px 0}

  /* ===== CTA 带 ===== */
  .cta-band{
    position:relative;overflow:hidden;
    padding:40px 32px;border-radius:22px;
    display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  }
  .cta-band::before{
    content:"";position:absolute;right:-80px;top:-90px;width:280px;height:280px;border-radius:50%;
    background:radial-gradient(circle,rgba(20,224,192,.28),transparent 68%);
    pointer-events:none;
  }
  .cta-band::after{
    content:"";position:absolute;left:-60px;bottom:-120px;width:240px;height:240px;border-radius:50%;
    background:radial-gradient(circle,rgba(255,138,61,.2),transparent 70%);
    pointer-events:none;
  }
  .cta-band > *{position:relative;z-index:2}
  .cta-title{font-size:24px;font-weight:700}
  .cta-desc{color:var(--muted);font-size:14px;margin-top:8px;max-width:520px}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap}
  .toast{
    margin-top:12px;font-size:13px;color:var(--primary);
    opacity:0;transition:opacity .3s ease;
  }
  .toast.show{opacity:1}

  /* ===== 页脚 ===== */
  .site-footer{
    margin-top:24px;
    background:#050810;
    border-top:1px solid var(--line);
    position:relative;
  }
  .site-footer::before{
    content:"";position:absolute;top:-1px;left:50%;transform:translateX(-50%);
    width:220px;height:2px;border-radius:2px;
    background:linear-gradient(90deg,transparent,rgba(20,224,192,.8),transparent);
  }
  .footer-grid{
    display:grid;gap:36px;
    grid-template-columns:1fr;
    padding:56px 0 36px;
  }
  @media (min-width:768px){.footer-grid{grid-template-columns:1.3fr 1fr 1fr 1fr}}
  .footer-about{color:var(--muted);font-size:14px;margin-top:14px;max-width:280px;line-height:1.8}
  .footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px}
  .footer-links{display:flex;flex-direction:column;gap:11px}
  .footer-links a{font-size:14px;color:var(--muted);transition:color .2s ease,transform .2s ease}
  .footer-links a:hover{color:var(--primary)}
  .qr-box{
    width:96px;height:96px;border-radius:12px;
    border:1px dashed rgba(255,255,255,.18);
    background:rgba(255,255,255,.03);
    display:flex;align-items:center;justify-content:center;text-align:center;
    font-size:12px;color:var(--dim);line-height:1.6;
  }
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
    padding:20px 0 32px;border-top:1px solid var(--line);
    font-size:13px;color:var(--dim);
  }

  @media (max-width:1023px){
    .nav-side{display:none}
    .nav-grid{grid-template-columns:auto 1fr;height:68px}
    .menu-toggle{display:inline-flex;justify-self:end}
    .mobile-drawer{max-height:calc(100vh - 68px);overflow-y:auto}
  }
  @media (min-width:1024px){
    .mobile-drawer{display:none !important}
  }
  @media (max-width:640px){
    .section{padding:56px 0}
    .hero-title{font-size:30px}
    .cta-band{padding:32px 22px}
    .cta-title{font-size:21px}
    .tag-cloud-wrap{padding:26px 20px}
    .faq-answer{padding-right:0}
  }

/* roulang page: category4 */
:root{
    --bg:#070B14;
    --surface:#0E1526;
    --surface-2:#111A2E;
    --line:rgba(255,255,255,.08);
    --line-strong:rgba(255,255,255,.14);
    --primary:#14E0C0;
    --primary-2:#0AA88F;
    --accent:#FF8A3D;
    --hot:#FF4D6D;
    --text:#E8EFF8;
    --muted:#8C9CB4;
    --dim:#5C6B84;
    --glass:rgba(255,255,255,.055);
    --glass-border:rgba(255,255,255,.09);
    --radius-card:18px;
    --radius-btn:12px;
    --radius-img:14px;
    --shadow-card:0 10px 30px -18px rgba(0,0,0,.8);
    --shadow-primary:0 10px 28px -10px rgba(20,224,192,.45);
    --gap-section:96px;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:PingFang SC,"HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;border-style:none}
  a{color:inherit;text-decoration:none}
  button{font:inherit;color:inherit;cursor:pointer;background:none;border:0}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4,p{margin:0}
  h1,h2,h3{line-height:1.25;font-weight:700}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
  ::selection{background:rgba(20,224,192,.3);color:#fff}

  ::-webkit-scrollbar{width:10px;height:10px}
  ::-webkit-scrollbar-track{background:#080D17}
  ::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:999px;border:2px solid #080D17}
  ::-webkit-scrollbar-thumb:hover{background:rgba(20,224,192,.45)}

  .container-x{
    width:100%;
    max-width:1240px;
    margin:0 auto;
    padding:0 32px;
  }

  /* ---------- Header / Nav ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(7,11,20,.62);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
    transition:background .3s ease,box-shadow .3s ease;
  }
  .site-header.scrolled{
    background:rgba(7,11,20,.86);
    box-shadow:0 12px 34px -24px rgba(0,0,0,.95);
  }
  .nav-grid{
    display:grid;
    grid-template-columns:1fr auto 1fr;
    align-items:center;
    gap:16px;
    min-height:72px;
  }
  .nav-side{display:flex;align-items:center;gap:4px;flex-wrap:nowrap}
  .nav-side.left{justify-content:flex-start}
  .nav-side.right{justify-content:flex-end}
  .nav-link{
    position:relative;
    display:inline-flex;
    align-items:center;
    padding:8px 12px;
    font-size:14px;
    color:var(--muted);
    border-radius:10px;
    white-space:nowrap;
    transition:color .25s ease,background .25s ease;
  }
  .nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
  .nav-link.active{color:var(--primary)}
  .nav-link.active::after{
    content:"";
    position:absolute;
    left:50%;
    bottom:0;
    transform:translateX(-50%);
    width:20px;
    height:2px;
    border-radius:2px;
    background:var(--primary);
    box-shadow:0 0 10px rgba(20,224,192,.8);
  }
  .brand-mark{
    display:inline-flex;
    align-items:center;
    gap:10px;
    font-size:18px;
    font-weight:700;
    letter-spacing:.2px;
    color:var(--text);
    white-space:nowrap;
  }
  .brand-dot{
    width:24px;
    height:24px;
    border-radius:8px;
    flex:0 0 24px;
    background:linear-gradient(135deg,var(--primary),var(--primary-2));
    box-shadow:0 0 18px rgba(20,224,192,.55),inset 0 1px 0 rgba(255,255,255,.5);
  }
  .menu-toggle{
    display:none;
    align-items:center;
    justify-content:center;
    width:44px;
    height:44px;
    border-radius:12px;
    border:1px solid var(--line-strong);
    background:rgba(255,255,255,.05);
    color:var(--text);
    font-size:17px;
    transition:border-color .25s ease,background .25s ease;
  }
  .menu-toggle:hover{border-color:rgba(20,224,192,.5);background:rgba(20,224,192,.08)}
  .mobile-drawer{
    display:none;
    border-top:1px solid var(--line);
    background:rgba(8,13,23,.96);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
  }
  .mobile-drawer.open{display:block}
  .mobile-drawer a{
    display:flex;
    align-items:center;
    justify-content:space-between;
    min-height:52px;
    padding:0 2px;
    font-size:16px;
    color:var(--text);
    border-bottom:1px solid var(--line);
  }
  .mobile-drawer a:last-child{border-bottom:0}
  .mobile-drawer a:hover{color:var(--primary)}

  /* ---------- Buttons / Badges ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:46px;
    padding:0 22px;
    border-radius:var(--radius-btn);
    font-size:15px;
    font-weight:600;
    border:1px solid transparent;
    transition:transform .22s ease,filter .22s ease,box-shadow .22s ease,border-color .22s ease,background .22s ease;
  }
  .btn-primary{
    background:var(--primary);
    color:#04121A;
    box-shadow:var(--shadow-primary);
  }
  .btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px)}
  .btn-primary:active{transform:translateY(0) scale(.99);box-shadow:0 6px 16px -10px rgba(20,224,192,.5)}
  .btn-ghost{
    background:rgba(255,255,255,.04);
    border-color:var(--line-strong);
    color:var(--text);
  }
  .btn-ghost:hover{border-color:rgba(20,224,192,.55);background:rgba(20,224,192,.07);transform:translateY(-2px)}
  .btn-ghost:active{transform:translateY(0) scale(.99)}
  .btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}

  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:4px 11px;
    font-size:12px;
    line-height:1.6;
    border-radius:999px;
    border:1px solid rgba(20,224,192,.32);
    background:rgba(20,224,192,.12);
    color:var(--primary);
    white-space:nowrap;
  }
  .badge.accent{
    border-color:rgba(255,138,61,.35);
    background:rgba(255,138,61,.12);
    color:var(--accent);
  }
  .badge.plain{
    border-color:var(--line-strong);
    background:rgba(255,255,255,.05);
    color:var(--muted);
  }
  .badge.hot{
    border-color:rgba(255,77,109,.35);
    background:rgba(255,77,109,.13);
    color:#FF8098;
  }

  .text-link{
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-size:14px;
    color:var(--primary);
    font-weight:600;
  }
  .text-link i{transition:transform .25s ease}
  .text-link:hover i{transform:translateX(4px)}
  .text-link:hover{text-decoration:underline;text-underline-offset:4px}

  /* ---------- Cards ---------- */
  .card{
    position:relative;
    background:var(--glass);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border:1px solid var(--glass-border);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
    transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
  }
  .card:hover{
    transform:translateY(-4px);
    border-color:rgba(20,224,192,.4);
    box-shadow:0 18px 40px -22px rgba(0,0,0,.9),0 0 0 1px rgba(20,224,192,.12),inset 0 1px 0 rgba(255,255,255,.08);
  }
  .card-img{
    width:100%;
    aspect-ratio:16/10;
    object-fit:cover;
    border-radius:var(--radius-img);
    transition:transform .4s ease;
  }
  .card-media{overflow:hidden;border-radius:var(--radius-img)}
  .card:hover .card-img{transform:scale(1.04)}

  /* ---------- Section basics ---------- */
  .section{padding:var(--gap-section) 0}
  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:24px;
    margin-bottom:40px;
  }
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:var(--primary);
    letter-spacing:.4px;
    margin-bottom:12px;
  }
  .eyebrow::before{
    content:"";
    width:18px;
    height:2px;
    border-radius:2px;
    background:var(--primary);
    box-shadow:0 0 10px rgba(20,224,192,.7);
  }
  .section-title{font-size:30px}
  .section-sub{margin-top:10px;font-size:15px;color:var(--muted);max-width:640px}

  /* ---------- Hero ---------- */
  .cat-hero{
    position:relative;
    overflow:hidden;
    border-bottom:1px solid var(--line);
    padding:70px 0 64px;
  }
  .cat-hero-bg{
    position:absolute;
    inset:0;
    background-size:cover;
    background-position:center;
    opacity:.42;
    transform:scale(1.04);
  }
  .cat-hero::before{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(180deg,rgba(7,11,20,.62) 0%,rgba(7,11,20,.86) 62%,var(--bg) 100%);
  }
  .cat-hero::after{
    content:"";
    position:absolute;
    width:520px;
    height:520px;
    right:-140px;
    top:-200px;
    border-radius:50%;
    background:radial-gradient(circle,rgba(20,224,192,.20),transparent 68%);
    filter:blur(20px);
    pointer-events:none;
  }
  .cat-hero .container-x{position:relative;z-index:2}
  .crumbs{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:8px;
    font-size:13px;
    color:var(--dim);
    margin-bottom:22px;
  }
  .crumbs a{color:var(--muted);transition:color .22s ease}
  .crumbs a:hover{color:var(--primary)}
  .crumbs .sep{color:rgba(255,255,255,.2)}
  .crumbs .now{color:var(--text)}
  .cat-hero h1{
    font-size:46px;
    max-width:900px;
    letter-spacing:0;
  }
  .cat-hero h1 .hl{
    color:var(--primary);
    text-shadow:0 0 28px rgba(20,224,192,.35);
  }
  .hero-lead{
    margin-top:20px;
    max-width:720px;
    font-size:16px;
    color:var(--muted);
    line-height:1.85;
  }
  .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}

  /* ---------- Alt rows (cat4 layout) ---------- */
  .alt-list{display:flex;flex-direction:column}
  .alt-row{
    display:grid;
    grid-template-columns:minmax(0,7fr) minmax(0,5fr);
    gap:36px;
    align-items:center;
    padding:34px 0;
    border-bottom:1px solid var(--line);
  }
  .alt-row:first-child{padding-top:0}
  .alt-row:last-child{border-bottom:0;padding-bottom:0}
  .alt-row.reverse{grid-template-columns:minmax(0,5fr) minmax(0,7fr)}
  .alt-row.reverse .alt-media{order:2}
  .alt-row.reverse .alt-body{order:1}
  .alt-media{position:relative;overflow:hidden;border-radius:var(--radius-img);border:1px solid var(--line)}
  .alt-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .45s ease}
  .alt-row:hover .alt-media img{transform:scale(1.04)}
  .alt-index{
    position:absolute;
    top:12px;
    left:12px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-width:38px;
    height:28px;
    padding:0 10px;
    font-size:12px;
    font-weight:700;
    letter-spacing:.5px;
    color:#04121A;
    background:var(--primary);
    border-radius:999px;
    box-shadow:0 8px 20px -10px rgba(20,224,192,.9);
  }
  .alt-body h3{font-size:20px;margin-bottom:12px}
  .alt-body p{font-size:15px;color:var(--muted);line-height:1.85}
  .alt-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:18px;font-size:13px;color:var(--dim)}
  .alt-points{margin-top:16px;display:flex;flex-direction:column;gap:8px}
  .alt-points li{
    position:relative;
    padding-left:18px;
    font-size:14px;
    color:var(--muted);
  }
  .alt-points li::before{
    content:"";
    position:absolute;
    left:0;
    top:11px;
    width:6px;
    height:6px;
    border-radius:2px;
    background:var(--accent);
    box-shadow:0 0 10px rgba(255,138,61,.6);
  }

  /* ---------- Compare module ---------- */
  .compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:22px}
  .compare-col{padding:26px 24px}
  .compare-col-title{
    display:flex;
    align-items:center;
    gap:10px;
    font-size:17px;
    font-weight:700;
    margin-bottom:8px;
  }
  .compare-col-title i{font-size:15px}
  .compare-col.risk .compare-col-title{color:var(--accent)}
  .compare-col.fix .compare-col-title{color:var(--primary)}
  .compare-note{font-size:13px;color:var(--dim);margin-bottom:14px}
  .compare-item{
    display:flex;
    gap:12px;
    padding:14px 0;
    border-bottom:1px dashed rgba(255,255,255,.09);
    font-size:14.5px;
    color:var(--muted);
    line-height:1.8;
  }
  .compare-item:last-child{border-bottom:0;padding-bottom:0}
  .compare-item .num{
    flex:0 0 24px;
    height:24px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    font-size:12px;
    font-weight:700;
    border-radius:8px;
    border:1px solid rgba(255,138,61,.4);
    color:var(--accent);
    margin-top:3px;
  }
  .compare-col.fix .compare-item .num{
    border-color:rgba(20,224,192,.4);
    color:var(--primary);
  }

  /* ---------- Steps ---------- */
  .steps{
    display:grid;
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:20px;
  }
  .step{padding:24px 22px}
  .step-num{
    font-size:30px;
    font-weight:700;
    line-height:1;
    color:rgba(20,224,192,.35);
    -webkit-text-stroke:1px rgba(20,224,192,.5);
  }
  .step h3{font-size:16px;margin:14px 0 8px}
  .step p{font-size:14px;color:var(--muted)}

  /* ---------- FAQ ---------- */
  .faq-wrap{max-width:820px}
  .faq-item{border-bottom:1px solid var(--line);position:relative;padding-left:0;transition:padding-left .25s ease}
  .faq-item.open{padding-left:14px}
  .faq-item.open::before{
    content:"";
    position:absolute;
    left:0;
    top:18px;
    bottom:18px;
    width:2px;
    border-radius:2px;
    background:var(--primary);
    box-shadow:0 0 12px rgba(20,224,192,.7);
  }
  .faq-q{
    width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    padding:20px 0;
    text-align:left;
    font-size:16px;
    font-weight:500;
    color:var(--text);
  }
  .faq-q .ico{
    flex:0 0 26px;
    height:26px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    border-radius:8px;
    border:1px solid var(--line-strong);
    color:var(--primary);
    font-size:12px;
    transition:transform .28s ease,border-color .28s ease;
  }
  .faq-item.open .faq-q .ico{transform:rotate(45deg);border-color:rgba(20,224,192,.5)}
  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .35s ease,padding .35s ease;
    font-size:15px;
    color:var(--muted);
    line-height:1.85;
  }
  .faq-item.open .faq-a{max-height:360px;padding-bottom:20px}

  /* ---------- CTA ---------- */
  .cta-band{
    display:grid;
    grid-template-columns:1.35fr 1fr;
    gap:32px;
    align-items:center;
    padding:40px 40px;
    border-radius:22px;
    background:
      radial-gradient(700px 240px at 12% 0%,rgba(20,224,192,.16),transparent 70%),
      radial-gradient(520px 220px at 96% 110%,rgba(255,138,61,.14),transparent 72%),
      rgba(255,255,255,.05);
    border:1px solid var(--glass-border);
    box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.07);
  }
  .cta-band h2{font-size:28px}
  .cta-band p{margin-top:12px;font-size:15px;color:var(--muted);max-width:560px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
  .share-icons{display:flex;gap:10px;margin-top:16px;justify-content:flex-end}
  .share-icons a{
    width:40px;height:40px;
    display:inline-flex;align-items:center;justify-content:center;
    border-radius:12px;
    border:1px solid var(--line-strong);
    background:rgba(255,255,255,.04);
    color:var(--muted);
    transition:color .22s ease,border-color .22s ease,transform .22s ease;
  }
  .share-icons a:hover{color:var(--primary);border-color:rgba(20,224,192,.5);transform:translateY(-2px)}

  /* ---------- Footer ---------- */
  .site-footer{
    position:relative;
    margin-top:20px;
    background:#060A12;
    border-top:1px solid var(--line);
    padding:64px 0 28px;
  }
  .site-footer::before{
    content:"";
    position:absolute;
    left:50%;
    top:-1px;
    transform:translateX(-50%);
    width:520px;
    max-width:80%;
    height:1px;
    background:linear-gradient(90deg,transparent,rgba(20,224,192,.55),transparent);
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr 1.1fr;
    gap:40px;
  }
  .footer-about{margin-top:16px;font-size:14px;color:var(--muted);max-width:280px;line-height:1.85}
  .footer-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:14px;letter-spacing:.3px}
  .footer-links a{
    display:block;
    padding:6px 0;
    font-size:14px;
    color:var(--muted);
    transition:color .22s ease,transform .22s ease;
  }
  .footer-links a:hover{color:var(--primary);transform:translateX(3px)}
  .qr-box{
    width:96px;
    height:96px;
    display:flex;
    align-items:center;
    justify-content:center;
    text-align:center;
    font-size:12px;
    line-height:1.6;
    color:var(--dim);
    border:1px dashed rgba(255,255,255,.18);
    border-radius:12px;
    background:rgba(255,255,255,.03);
  }
  .footer-bottom{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    flex-wrap:wrap;
    margin-top:44px;
    padding-top:22px;
    border-top:1px solid var(--line);
    font-size:13px;
    color:var(--dim);
  }

  /* ---------- Responsive ---------- */
  @media (max-width:1023px){
    :root{--gap-section:72px}
    .nav-grid{grid-template-columns:1fr auto;min-height:64px}
    .nav-side{display:none}
    .brand-mark{grid-column:1;grid-row:1;justify-self:start;font-size:17px}
    .menu-toggle{grid-column:2;grid-row:1;justify-self:end;display:inline-flex}
    .cat-hero h1{font-size:38px}
    .compare-wrap{grid-template-columns:1fr}
    .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
    .cta-band{grid-template-columns:1fr;padding:32px 26px}
    .cta-actions,.share-icons{justify-content:flex-start}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  }
  @media (max-width:899px){
    .alt-row,
    .alt-row.reverse{grid-template-columns:1fr;gap:20px}
    .alt-row.reverse .alt-media{order:0}
    .alt-row.reverse .alt-body{order:0}
  }
  @media (max-width:767px){
    :root{--gap-section:56px}
    .container-x{padding:0 20px}
    .cat-hero{padding:46px 0 48px}
    .cat-hero h1{font-size:31px}
    .hero-lead{font-size:15px}
    .section-title{font-size:24px}
    .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
    .alt-body h3{font-size:18px}
    .steps{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr;gap:28px}
    .footer-about{max-width:none}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
    .btn{height:46px;width:auto}
    .hero-actions .btn{flex:1 1 auto}
  }
  @media (max-width:520px){
    .cat-hero h1{font-size:27px}
    .brand-mark{font-size:16px}
    .compare-col{padding:22px 18px}
  }