/* roulang page: index */
:root{
  --ice:#0FB5C9;
  --ink:#0D1F24;
  --mist:#E2F7FA;
  --orange:#FF7A1A;
  --aurora:#5EEAD4;
  --bg:#F5FAFB;
  --white:#FFFFFF;
  --line:#DCE8EC;
  --muted:#5C7178;
  --grad:linear-gradient(135deg,#0FB5C9 0%,#5EEAD4 55%,#FF7A1A 130%);
  --shadow:0 12px 32px rgba(13,31,36,.08);
  --shadow-lg:0 18px 44px rgba(13,31,36,.12);
  --r-sm:16px;
  --r-md:24px;
  --r-lg:32px;
  --r-pill:999px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-bottom:96px;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;border:0;background:none;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-sm{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:48px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--ice);background:var(--mist);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:18px;
}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--grad);}
h1{font-size:52px;line-height:1.18;font-weight:800;letter-spacing:-.5px;}
h2{font-size:34px;line-height:1.28;font-weight:800;letter-spacing:-.3px;}
h3{font-size:21px;line-height:1.45;font-weight:700;}
.lead{font-size:17px;color:var(--muted);margin-top:16px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 28px;border-radius:var(--r-pill);
  font-size:16px;font-weight:600;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,background-position .35s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--grad);background-size:170% 170%;color:#fff;box-shadow:0 10px 24px rgba(15,181,201,.28);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(15,181,201,.36);background-position:80% 50%;}
.btn-secondary{background:#fff;border-color:var(--line);color:var(--ink);}
.btn-secondary:hover{background:var(--mist);transform:translateY(-2px);}
.btn-ghost{color:var(--ice);background:transparent;padding:0 14px;}
.btn-ghost:hover{background:rgba(15,181,201,.08);}
.btn:active{transform:scale(.98);}
.btn:focus-visible{outline:3px solid rgba(15,181,201,.35);outline-offset:2px;}
.btn-sm{height:42px;padding:0 20px;font-size:15px;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(245,250,251,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:28px;}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:.2px;color:var(--ink);}
.logo-mark{
  width:36px;height:36px;border-radius:11px;background:var(--grad);
  display:flex;align-items:center;justify-content:center;color:#fff;flex:none;
  box-shadow:0 6px 16px rgba(15,181,201,.3);
}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;
  padding:0 14px;border-radius:var(--r-pill);font-size:15px;font-weight:500;
  color:#33535A;transition:background .2s ease,color .2s ease;
}
.nav-link:hover{background:var(--mist);color:var(--ink);}
.nav-link.active{color:var(--ink);font-weight:700;}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:3px;
  border-radius:var(--r-pill);background:var(--grad);
}
.header-actions{display:flex;align-items:center;gap:12px;}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:14px;
  border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;
}
.menu-toggle:focus-visible{outline:3px solid rgba(15,181,201,.35);}
.mobile-drawer{
  display:none;overflow:hidden;max-height:0;
  transition:max-height .24s ease;
  border-top:1px solid transparent;
  background:#fff;
}
.mobile-drawer.is-open{max-height:460px;border-top-color:var(--line);}
.mobile-drawer nav{display:flex;flex-direction:column;padding:14px 24px 22px;gap:4px;}
.mobile-drawer a{
  padding:13px 14px;border-radius:var(--r-sm);font-size:16px;font-weight:600;color:#33535A;
}
.mobile-drawer a:hover,.mobile-drawer a.active{background:var(--mist);color:var(--ink);}
.mobile-drawer .btn{margin-top:10px;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;padding:76px 0 92px;
  background:
    radial-gradient(880px 420px at 10% 0%, rgba(94,234,212,.26), transparent 62%),
    radial-gradient(680px 380px at 92% 10%, rgba(15,181,201,.18), transparent 60%),
    radial-gradient(420px 300px at 60% 100%, rgba(255,122,26,.10), transparent 65%),
    linear-gradient(180deg,#F5FAFB 0%,#FFFFFF 100%);
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.hero h1{margin-bottom:20px;}
.hero-sub{font-size:18px;color:var(--muted);max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px;}
.hero-badge{
  display:flex;align-items:baseline;gap:7px;padding:11px 18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  box-shadow:0 4px 14px rgba(13,31,36,.05);
}
.hero-badge b{font-size:20px;font-weight:800;color:var(--ice);letter-spacing:-.5px;}
.hero-badge span{font-size:13px;color:var(--muted);}
.hero-visual{position:relative;}
.hero-visual .hero-img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-lg);box-shadow:var(--shadow-lg);
}
.float-chip{
  position:absolute;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-sm);padding:12px 16px;box-shadow:var(--shadow);
  display:flex;align-items:center;gap:10px;
}
.float-chip .dot{width:9px;height:9px;border-radius:3px;background:var(--grad);flex:none;}
.float-chip strong{font-size:15px;font-weight:800;display:block;line-height:1.25;}
.float-chip small{font-size:12px;color:var(--muted);display:block;}
.chip-a{left:-18px;top:34px;}
.chip-b{right:-14px;bottom:48px;}

/* ============ 错位三卡 ============ */
.shift-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.feature-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:34px;box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.feature-card.is-wide{grid-column:span 2;display:grid;grid-template-columns:auto 1fr;gap:26px;align-items:start;}
.feature-icon{
  width:52px;height:52px;border-radius:16px;background:var(--mist);
  display:flex;align-items:center;justify-content:center;color:var(--ice);flex:none;
}
.feature-card h3{margin-bottom:10px;}
.feature-card p{color:var(--muted);font-size:15.5px;}
.feature-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:18px;
  font-size:15px;font-weight:600;color:var(--ice);
  transition:color .2s ease,gap .2s ease;
}
.feature-link:hover{color:var(--orange);gap:10px;}

/* ============ 场景时间线 ============ */
.scene-wrap{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.scene-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;}
.scene-img{border-radius:var(--r-lg);width:100%;aspect-ratio:3/2;object-fit:cover;box-shadow:var(--shadow);}
.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;position:relative;}
.step-card{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 24px;transition:transform .25s ease,box-shadow .25s ease,background .25s ease;
}
.step-card:hover{transform:translateY(-4px);background:#fff;box-shadow:var(--shadow);}
.step-num{
  width:46px;height:46px;border-radius:14px;background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:17px;margin-bottom:18px;
}
.step-card h3{font-size:18px;margin-bottom:8px;}
.step-card p{font-size:14.5px;color:var(--muted);}
.step-result{
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);
  font-size:13.5px;font-weight:600;color:var(--ice);
}

/* ============ 数据与证言 ============ */
.proof-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.stat-card{
  background:var(--ink);border:1px solid rgba(94,234,212,.32);
  border-radius:var(--r-md);padding:26px 24px;color:#fff;
  transition:transform .25s ease,box-shadow .25s ease;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(13,31,36,.24);}
.stat-card b{
  display:block;font-size:34px;font-weight:800;line-height:1.1;
  background:linear-gradient(135deg,#5EEAD4 0%,#0FB5C9 60%,#FF7A1A 140%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-card span{display:block;font-size:13px;color:rgba(226,247,250,.72);margin-top:8px;}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:24px;}
.quote-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px;box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease;
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.quote-card p{font-size:15.5px;color:#2B474E;}
.quote-user{display:flex;align-items:center;gap:12px;margin-top:20px;}
.quote-avatar{
  width:44px;height:44px;border-radius:14px;background:var(--grad);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:16px;flex:none;
}
.quote-user strong{display:block;font-size:14.5px;font-weight:700;}
.quote-user small{display:block;font-size:12.5px;color:var(--muted);}

/* ============ 最新发布 ============ */
.news-section{background:var(--bg);}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;display:flex;flex-direction:column;
  box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.news-thumb{display:block;overflow:hidden;aspect-ratio:16/9;background:var(--mist);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.news-card:hover .news-thumb img{transform:scale(1.05);}
.news-body{padding:22px;display:flex;flex-direction:column;flex:1;}
.badge{
  display:inline-flex;align-items:center;align-self:flex-start;
  padding:4px 12px;border-radius:var(--r-pill);
  background:var(--mist);color:#0A7E8C;
  font-size:12.5px;font-weight:600;margin-bottom:12px;
}
.news-body h3{font-size:18px;margin-bottom:10px;}
.news-body h3 a{transition:color .2s ease;}
.news-body h3 a:hover{color:var(--ice);}
.news-body p{
  font-size:14.5px;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:18px;display:flex;align-items:center;
  justify-content:space-between;font-size:13px;color:var(--muted);
}
.news-meta .arrow{color:var(--ice);font-weight:700;transition:transform .2s ease;}
.news-card:hover .news-meta .arrow{transform:translateX(4px);}
.news-empty{
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);
  padding:64px 24px;text-align:center;display:flex;flex-direction:column;
  align-items:center;gap:16px;
}
.news-empty .empty-icon{
  width:60px;height:60px;border-radius:20px;background:var(--mist);
  display:flex;align-items:center;justify-content:center;color:var(--ice);
}
.news-empty p{color:var(--muted);font-size:15.5px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-left:3px solid transparent;
  border-radius:var(--r-sm);margin-bottom:14px;overflow:hidden;
  transition:border-color .25s ease,background .25s ease,box-shadow .25s ease;
}
.faq-item:hover{border-color:#CFE1E6;}
.faq-item.is-open{border-left-color:var(--ice);background:#FBFEFF;box-shadow:var(--shadow);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 24px;text-align:left;font-size:18px;font-weight:700;color:var(--ink);
}
.faq-q:focus-visible{outline:3px solid rgba(15,181,201,.35);outline-offset:-3px;}
.faq-mark{
  width:30px;height:30px;border-radius:10px;flex:none;
  background:var(--mist);color:var(--ice);
  display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:700;line-height:1;
  transition:transform .25s ease,background .25s ease,color .25s ease;
}
.faq-item.is-open .faq-mark{background:var(--grad);color:#fff;transform:rotate(180deg);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s ease,opacity .3s ease;opacity:0;
}
.faq-item.is-open .faq-a{max-height:320px;opacity:1;}
.faq-a p{padding:0 24px 24px;font-size:16px;color:var(--muted);}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:var(--ink);padding:64px 56px;color:#fff;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(560px 260px at 12% 0%, rgba(15,181,201,.34), transparent 62%),
    radial-gradient(420px 240px at 92% 100%, rgba(255,122,26,.22), transparent 64%);
  pointer-events:none;
}
.cta-inner{position:relative;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px;}
.cta-inner h2{color:#fff;font-size:30px;}
.cta-inner p{color:rgba(226,247,250,.76);margin-top:12px;font-size:16px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(226,247,250,.74);padding:72px 0 32px;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .logo{color:#fff;margin-bottom:18px;}
.footer-brand p{font-size:14.5px;line-height:1.85;max-width:340px;}
.footer-col h4{color:#fff;font-size:15.5px;font-weight:700;margin-bottom:18px;letter-spacing:.02em;}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:14.5px;transition:color .2s ease;}
.footer-col a:hover{color:var(--orange);}
.footer-note{font-size:13.5px;line-height:1.9;}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(220,232,236,.16);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(226,247,250,.55);
}

/* ============ 底部固定转化条 ============ */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:80;
  background:rgba(255,255,255,.97);border-top:1px solid var(--line);
  box-shadow:0 -8px 28px rgba(13,31,36,.08);
  backdrop-filter:blur(10px);
}
.sticky-inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:76px;padding-top:12px;padding-bottom:12px;
}
.sticky-text strong{display:block;font-size:15.5px;font-weight:700;}
.sticky-text span{display:block;font-size:13px;color:var(--muted);}
.sticky-actions{display:flex;gap:12px;align-items:center;}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  h1{font-size:42px;}
  h2{font-size:30px;}
  .hero{padding:56px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero-sub{max-width:none;}
  .shift-grid{grid-template-columns:1fr;}
  .feature-card.is-wide{grid-column:span 1;grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;gap:36px;}
  .timeline{grid-template-columns:1fr;}
  .proof-grid{grid-template-columns:repeat(2,1fr);}
  .quote-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
  .cta-band{padding:48px 32px;}
}
@media (max-width:768px){
  body{padding-bottom:132px;}
  .section{padding:64px 0;}
  .section-sm{padding:48px 0;}
  .container{padding:0 18px;}
  h1{font-size:32px;}
  h2{font-size:25px;}
  h3{font-size:19px;}
  .nav-links{display:none;}
  .header-actions .btn{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-inner{height:64px;}
  .mobile-drawer{display:block;}
  .hero-grid{gap:36px;}
  .hero-actions .btn{width:100%;}
  .chip-a{left:8px;top:12px;}
  .chip-b{right:8px;bottom:12px;}
  .proof-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-brand p{max-width:none;}
  .sticky-inner{flex-direction:column;align-items:stretch;gap:10px;padding-top:10px;padding-bottom:10px;}
  .sticky-actions{width:100%;}
  .sticky-actions .btn{flex:1;height:46px;padding:0 12px;font-size:15px;}
  .cta-band{padding:40px 22px;border-radius:var(--r-md);}
  .cta-inner h2{font-size:24px;}
  .cta-actions .btn{width:100%;}
}
@media (max-width:520px){
  .hero-badge{padding:9px 14px;}
  .feature-card{padding:26px 22px;}
  .faq-q{font-size:16.5px;padding:18px 18px;}
  .faq-a p{padding:0 18px 20px;}
}

/* roulang page: article */
:root{
    --ice-cyan:#0FB5C9;
    --polar-ink:#0D1F24;
    --ice-mist:#E2F7FA;
    --break-orange:#FF7A1A;
    --aurora:#5EEAD4;
    --bg-cold:#F5FAFB;
    --bg-white:#FFFFFF;
    --line:#DCE8EC;
    --text:#0D1F24;
    --text-weak:#5C7178;
    --grad:linear-gradient(135deg,#0FB5C9 0%,#5EEAD4 55%,#FF7A1A 130%);
    --shadow-sm:0 8px 22px rgba(13,31,36,.06);
    --shadow-md:0 12px 32px rgba(13,31,36,.08);
    --shadow-lg:0 18px 44px rgba(13,31,36,.12);
    --r-sm:16px;
    --r-md:24px;
    --r-lg:32px;
    --r-pill:999px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
    background:var(--bg-cold);
    color:var(--text);
    font-size:16px;
    line-height:1.7;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;height:auto;}
  a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,opacity .2s ease;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:800;letter-spacing:.2px;}
  p{margin:0;}
  button{font-family:inherit;}
  :focus-visible{outline:3px solid rgba(15,181,201,.35);outline-offset:2px;border-radius:8px;}
  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

  /* ============ 顶部导航 ============ */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(255,255,255,.96);
    border-bottom:1px solid var(--line);
    backdrop-filter:saturate(150%) blur(6px);
  }
  .header-inner{
    display:flex;align-items:center;justify-content:space-between;
    height:72px;gap:24px;
  }
  .logo{
    display:inline-flex;align-items:center;gap:10px;
    font-size:19px;font-weight:800;color:var(--polar-ink);white-space:nowrap;
  }
  .logo-mark{
    width:36px;height:36px;border-radius:12px;
    display:inline-flex;align-items:center;justify-content:center;
    background:var(--grad);color:#fff;flex:0 0 36px;
    box-shadow:0 8px 18px rgba(15,181,201,.28);
  }
  .logo:hover{color:var(--ice-cyan);}
  .nav-links{display:flex;align-items:center;gap:6px;}
  .nav-link{
    display:inline-block;position:relative;
    padding:9px 15px;border-radius:var(--r-pill);
    font-size:15px;font-weight:600;color:var(--text-weak);
  }
  .nav-link:hover{background:var(--ice-mist);color:var(--polar-ink);}
  .nav-link.active{color:var(--polar-ink);}
  .nav-link.active::after{
    content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
    width:26px;height:3px;border-radius:3px;background:var(--grad);
  }
  .nav-cta{
    display:inline-flex;align-items:center;gap:8px;
    padding:10px 20px;border-radius:var(--r-pill);
    background:var(--grad);color:#fff;font-size:15px;font-weight:600;
    box-shadow:0 10px 24px rgba(15,181,201,.28);
    transition:transform .2s ease,box-shadow .2s ease;
    white-space:nowrap;
  }
  .nav-cta:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(255,122,26,.26);}
  .nav-cta:active{transform:scale(.98);}

  /* ============ 面包屑 ============ */
  .crumb-bar{background:var(--bg-white);border-bottom:1px solid var(--line);}
  .crumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    padding:14px 0;font-size:13.5px;color:var(--text-weak);
  }
  .crumb a:hover{color:var(--ice-cyan);}
  .crumb .sep{color:#A9BEC4;}
  .crumb .current{color:var(--polar-ink);font-weight:600;}

  /* ============ 文章头部 ============ */
  .article-hero{
    position:relative;overflow:hidden;
    background:
      radial-gradient(900px 340px at 12% -10%, rgba(15,181,201,.16), transparent 62%),
      radial-gradient(520px 260px at 92% 0%, rgba(255,122,26,.12), transparent 60%),
      var(--bg-white);
    border-bottom:1px solid var(--line);
  }
  .article-hero::after{
    content:"";position:absolute;right:-60px;top:-60px;width:300px;height:300px;
    background-image:radial-gradient(rgba(15,181,201,.22) 1.4px, transparent 1.4px);
    background-size:16px 16px;opacity:.5;pointer-events:none;
  }
  .article-hero-inner{position:relative;z-index:2;max-width:880px;padding:56px 0 48px;}
  .chip-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:18px;}
  .chip{
    display:inline-flex;align-items:center;gap:6px;
    padding:6px 14px;border-radius:var(--r-pill);
    font-size:13px;font-weight:600;
    background:var(--ice-mist);color:#0A6E7C;border:1px solid rgba(15,181,201,.22);
  }
  .chip.solid{background:var(--grad);color:#fff;border:none;}
  .article-title{
    font-size:clamp(28px,4.2vw,46px);
    font-weight:800;line-height:1.24;color:var(--polar-ink);
    letter-spacing:.3px;
  }
  .article-lead{
    margin-top:18px;font-size:17px;line-height:1.85;color:var(--text-weak);
    max-width:760px;
  }
  .meta-row{
    margin-top:26px;display:flex;flex-wrap:wrap;align-items:center;gap:12px 22px;
    font-size:13.5px;color:var(--text-weak);
  }
  .meta-item{display:inline-flex;align-items:center;gap:7px;}
  .meta-dot{width:6px;height:6px;border-radius:50%;background:var(--aurora);}
  .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
  .tag{
    font-size:12.5px;font-weight:600;color:#0A6E7C;
    padding:5px 12px;border-radius:var(--r-pill);
    background:#fff;border:1px dashed rgba(15,181,201,.4);
  }

  /* ============ 主体布局 ============ */
  .article-main{padding:56px 0 72px;}
  .article-grid{
    display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;align-items:start;
  }
  .article-card{
    background:var(--bg-white);border:1px solid var(--line);
    border-radius:var(--r-lg);box-shadow:var(--shadow-md);
    padding:44px 48px;
  }

  /* ============ 正文排版 ============ */
  .article-body{max-width:760px;font-size:17px;line-height:1.9;color:#22383E;}
  .article-body p{margin:0 0 1.2em;}
  .article-body h2{
    position:relative;font-size:27px;font-weight:800;color:var(--polar-ink);
    margin:2.1em 0 .85em;padding-left:18px;line-height:1.35;
  }
  .article-body h2::before{
    content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:5px;border-radius:4px;background:var(--grad);
  }
  .article-body h3{
    font-size:20px;font-weight:700;color:var(--polar-ink);margin:1.7em 0 .6em;
  }
  .article-body h4{font-size:17.5px;font-weight:700;color:var(--polar-ink);margin:1.4em 0 .5em;}
  .article-body a{color:var(--ice-cyan);border-bottom:1px solid rgba(15,181,201,.35);}
  .article-body a:hover{color:var(--break-orange);border-bottom-color:rgba(255,122,26,.5);}
  .article-body strong{color:var(--polar-ink);font-weight:700;}
  .article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:4px;}
  .article-body ul li{position:relative;padding-left:22px;margin-bottom:.6em;}
  .article-body ul li::before{
    content:"";position:absolute;left:2px;top:.72em;width:8px;height:8px;border-radius:2px;
    background:var(--grad);transform:rotate(45deg);
  }
  .article-body ol{counter-reset:item;list-style:none;}
  .article-body ol li{position:relative;padding-left:34px;margin-bottom:.65em;counter-increment:item;}
  .article-body ol li::before{
    content:counter(item);position:absolute;left:0;top:.28em;
    width:22px;height:22px;border-radius:8px;background:var(--ice-mist);
    color:#0A6E7C;font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;
  }
  .article-body blockquote{
    margin:1.6em 0;padding:18px 22px;background:var(--bg-cold);
    border-left:4px solid var(--ice-cyan);border-radius:0 var(--r-sm) var(--r-sm) 0;
    color:#2C4A52;font-size:16.5px;
  }
  .article-body blockquote p:last-child{margin-bottom:0;}
  .article-body img{border-radius:20px;margin:1.5em 0;box-shadow:var(--shadow-sm);}
  .article-body figure{margin:1.6em 0;}
  .article-body figcaption{
    margin-top:10px;font-size:13px;color:var(--text-weak);text-align:center;
  }
  .article-body table{
    width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15.5px;
    border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;
  }
  .article-body thead th{background:var(--ice-mist);color:var(--polar-ink);font-weight:700;text-align:left;}
  .article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);}
  .article-body tbody tr:nth-child(even){background:#F8FCFD;}
  .article-body code{
    background:var(--ice-mist);color:#0A6E7C;padding:2px 7px;border-radius:6px;
    font-size:14.5px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  }
  .article-body pre{
    background:var(--polar-ink);color:#E6F6F8;padding:18px 20px;border-radius:var(--r-sm);
    overflow-x:auto;font-size:14.5px;line-height:1.7;margin:1.6em 0;
  }
  .article-body pre code{background:none;color:inherit;padding:0;}
  .article-body hr{border:none;height:1px;background:var(--line);margin:2.2em 0;}

  /* 空状态 */
  .empty-state{
    text-align:center;padding:56px 24px;border:1px dashed var(--line);
    border-radius:var(--r-md);background:var(--bg-cold);
  }
  .empty-icon{
    width:56px;height:56px;margin:0 auto 16px;border-radius:18px;
    display:flex;align-items:center;justify-content:center;
    background:var(--ice-mist);color:var(--ice-cyan);
  }
  .empty-state h3{font-size:20px;margin-bottom:8px;}
  .empty-state p{color:var(--text-weak);font-size:15px;margin-bottom:20px;}

  /* ============ 侧栏 ============ */
  .side-card{
    background:var(--bg-white);border:1px solid var(--line);border-radius:var(--r-md);
    padding:24px;box-shadow:var(--shadow-sm);margin-bottom:20px;
  }
  .side-card h3{font-size:17px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
  .side-card h3::before{content:"";width:8px;height:8px;border-radius:3px;background:var(--grad);transform:rotate(45deg);}
  .side-list li+li{border-top:1px solid var(--line);}
  .side-list a{
    display:flex;align-items:flex-start;gap:10px;padding:11px 0;
    font-size:14.8px;color:#2C4A52;line-height:1.6;
  }
  .side-list a:hover{color:var(--break-orange);}
  .side-list .idx{
    flex:0 0 20px;height:20px;margin-top:2px;border-radius:6px;background:var(--ice-mist);
    color:#0A6E7C;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
  }
  .side-note{font-size:14px;color:var(--text-weak);line-height:1.8;}
  .side-cta{
    background:linear-gradient(160deg,#0D1F24 0%,#12414A 100%);
    border:none;color:#DCEEF2;
  }
  .side-cta h3{color:#fff;}
  .side-cta p{font-size:14px;line-height:1.8;color:#9FC3CB;margin-bottom:16px;}
  .btn-block-sm{
    display:flex;align-items:center;justify-content:center;gap:6px;
    width:100%;padding:11px 16px;border-radius:var(--r-pill);
    background:var(--grad);color:#fff;font-size:14.5px;font-weight:600;
    transition:transform .2s ease,box-shadow .2s ease;
  }
  .btn-block-sm:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(15,181,201,.3);}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 26px;border-radius:var(--r-pill);font-size:15.5px;font-weight:600;
    border:1px solid transparent;cursor:pointer;
    transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease;
  }
  .btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 26px rgba(15,181,201,.28);}
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(255,122,26,.28);}
  .btn-outline{background:#fff;color:var(--polar-ink);border-color:var(--line);}
  .btn-outline:hover{background:var(--ice-mist);border-color:rgba(15,181,201,.4);}
  .btn-ghost{background:transparent;color:var(--ice-cyan);}
  .btn-ghost:hover{background:var(--ice-mist);}
  .btn:active{transform:scale(.98);}

  /* ============ 文末转化 ============ */
  .end-cta{
    margin-top:36px;border-radius:var(--r-lg);overflow:hidden;position:relative;
    background:linear-gradient(135deg,#0D1F24 0%,#0F3A43 60%,#155C68 100%);
    color:#EAF7F9;padding:40px 44px;
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  }
  .end-cta::after{
    content:"";position:absolute;right:-40px;bottom:-60px;width:240px;height:240px;
    background-image:radial-gradient(rgba(94,234,212,.28) 1.4px, transparent 1.4px);
    background-size:15px 15px;opacity:.6;pointer-events:none;
  }
  .end-cta h3{font-size:24px;color:#fff;position:relative;z-index:2;}
  .end-cta p{margin-top:8px;font-size:15px;color:#A8C9D1;max-width:520px;position:relative;z-index:2;}
  .end-cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:2;}

  /* ============ 相关推荐 ============ */
  .related{padding:0 0 88px;}
  .section-head{margin-bottom:28px;}
  .section-head .eyebrow{
    display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
    color:#0A6E7C;background:var(--ice-mist);padding:6px 14px;border-radius:var(--r-pill);margin-bottom:12px;
  }
  .section-head h2{font-size:30px;color:var(--polar-ink);}
  .card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  .post-card{
    display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
    border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow-sm);
    transition:transform .25s ease,box-shadow .25s ease;
  }
  .post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
  .post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--ice-mist);}
  .post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
  .post-card:hover .post-thumb img{transform:scale(1.05);}
  .post-thumb .chip{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.94);}
  .post-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
  .post-body h3{font-size:18.5px;line-height:1.5;color:var(--polar-ink);margin-bottom:10px;}
  .post-card:hover .post-body h3{color:var(--ice-cyan);}
  .post-body p{font-size:14.5px;color:var(--text-weak);line-height:1.75;flex:1;}
  .post-foot{
    margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
    display:flex;align-items:center;justify-content:space-between;
    font-size:13px;color:var(--text-weak);
  }
  .arrow-link{color:var(--ice-cyan);font-weight:600;display:inline-flex;align-items:center;gap:5px;}
  .post-card:hover .arrow-link{color:var(--break-orange);}

  /* ============ 移动固定转化条 ============ */
  .mobile-bar{
    display:none;position:fixed;left:0;right:0;bottom:0;z-index:80;
    background:#fff;border-top:1px solid var(--line);
    box-shadow:0 -8px 24px rgba(13,31,36,.08);
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    align-items:center;gap:10px;
  }
  .mobile-bar .bar-text{font-size:12.5px;color:var(--text-weak);flex:1;line-height:1.4;}
  .mobile-bar .bar-text strong{display:block;font-size:14px;color:var(--polar-ink);}
  .mobile-bar .btn{padding:11px 18px;font-size:14px;min-height:44px;}

  /* ============ 页脚 ============ */
  .site-footer{
    background:var(--polar-ink);color:#9FC3CB;position:relative;
    padding:64px 0 28px;margin-top:0;
  }
  .site-footer::before{
    content:"";position:absolute;top:0;left:0;right:0;height:1px;
    background:linear-gradient(90deg,transparent,rgba(94,234,212,.55),rgba(255,122,26,.45),transparent);
  }
  .footer-grid{
    display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;
    padding-bottom:40px;border-bottom:1px solid rgba(220,232,236,.14);
  }
  .footer-brand .logo{color:#fff;margin-bottom:16px;}
  .footer-brand p{font-size:14.5px;line-height:1.85;color:#8FB4BC;max-width:340px;}
  .footer-col h4{font-size:16px;color:#fff;margin-bottom:16px;}
  .footer-col ul li{margin-bottom:10px;}
  .footer-col ul a{font-size:14.5px;color:#9FC3CB;}
  .footer-col ul a:hover{color:var(--break-orange);}
  .footer-note{font-size:14.5px;line-height:1.9;color:#8FB4BC;}
  .footer-bottom{
    padding-top:22px;display:flex;flex-wrap:wrap;gap:10px 24px;
    align-items:center;justify-content:space-between;
    font-size:13.5px;color:#7DA2AA;
  }

  /* ============ 响应式 ============ */
  @media (max-width:1024px){
    .article-grid{grid-template-columns:minmax(0,1fr);}
    .article-card{padding:36px 32px;}
    .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  }
  @media (max-width:768px){
    .container{padding:0 16px;}
    .header-inner{height:64px;gap:12px;}
    .logo{font-size:16.5px;}
    .logo-mark{width:32px;height:32px;flex:0 0 32px;border-radius:10px;}
    .nav-links{
      overflow-x:auto;flex-wrap:nowrap;gap:2px;
      scrollbar-width:none;max-width:56vw;
    }
    .nav-links::-webkit-scrollbar{display:none;}
    .nav-link{padding:8px 11px;font-size:14px;white-space:nowrap;}
    .nav-cta{padding:9px 15px;font-size:14px;}
    .article-hero-inner{padding:36px 0 34px;}
    .article-title{font-size:clamp(26px,6.6vw,32px);}
    .article-lead{font-size:15.5px;}
    .article-main{padding:34px 0 48px;}
    .article-card{padding:26px 20px;border-radius:var(--r-md);}
    .article-body{font-size:16.5px;line-height:1.85;}
    .article-body h2{font-size:22px;}
    .article-body h3{font-size:18px;}
    .end-cta{padding:28px 22px;border-radius:var(--r-md);}
    .end-cta h3{font-size:20px;}
    .related{padding-bottom:56px;}
    .section-head h2{font-size:23px;}
    .card-grid{grid-template-columns:minmax(0,1fr);}
    .mobile-bar{display:flex;}
    body{padding-bottom:74px;}
  }
  @media (max-width:520px){
    .footer-grid{grid-template-columns:1fr;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
    .chip-row{gap:8px;}
    .meta-row{gap:8px 16px;}
  }

/* roulang page: category1 */
:root{
  --brand:#0FB5C9;
  --brand-deep:#0D1F24;
  --brand-soft:#E2F7FA;
  --accent:#FF7A1A;
  --aurora:#5EEAD4;
  --bg:#F5FAFB;
  --white:#FFFFFF;
  --line:#DCE8EC;
  --text:#0D1F24;
  --muted:#5C7178;
  --grad:linear-gradient(135deg,#0FB5C9 0%,#5EEAD4 55%,#FF7A1A 130%);
  --shadow-sm:0 12px 32px rgba(13,31,36,.08);
  --shadow-lg:0 18px 44px rgba(13,31,36,.12);
  --r-sm:16px;
  --r-md:24px;
  --r-lg:32px;
  --r-pill:999px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  padding-bottom:104px;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul{padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(15,181,201,.35);outline-offset:2px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#F7FCFD;
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 12px rgba(13,31,36,.04);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:0 10px 28px rgba(13,31,36,.10)}
.header-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:.2px;color:var(--brand-deep);white-space:nowrap}
.logo-mark{
  width:34px;height:34px;border-radius:12px;background:var(--grad);color:#fff;
  display:grid;place-items:center;box-shadow:0 8px 18px rgba(15,181,201,.28);flex:0 0 auto;
}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;display:inline-block;padding:9px 16px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:#33484E;transition:background .22s ease,color .22s ease;
}
.nav-link:hover{background:var(--brand-soft);color:var(--brand-deep)}
.nav-link.active{background:var(--brand-soft);color:var(--brand-deep);font-weight:700}
.nav-link.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:4px;height:3px;border-radius:var(--r-pill);background:var(--grad);
}
.header-cta{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;transition:.2s;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-deep);transition:.22s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:#fff;padding:12px 24px 20px;
  max-height:0;overflow:hidden;transition:max-height .24s ease;
}
.mobile-drawer.open{display:block;max-height:420px}
.mobile-drawer a{
  display:block;padding:12px 14px;border-radius:14px;font-size:16px;color:#33484E;font-weight:500;
}
.mobile-drawer a:hover{background:var(--brand-soft)}
.mobile-drawer a.active{background:var(--brand-soft);color:var(--brand-deep);font-weight:700}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);border:1px solid transparent;cursor:pointer;
  font-size:16px;font-weight:600;padding:14px 28px;line-height:1.2;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(15,181,201,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(15,181,201,.36)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--brand-deep)}
.btn-ghost:hover{background:var(--brand-soft);border-color:rgba(15,181,201,.42);transform:translateY(-2px)}
.btn-quiet{background:transparent;color:var(--brand);padding:10px 14px}
.btn-quiet:hover{background:var(--brand-soft)}
.btn:active{transform:scale(.98)}

/* ---------- Breadcrumb ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);padding:28px 0 0}
.breadcrumb a{transition:color .2s}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#b7c8ce}
.breadcrumb .current{color:var(--brand-deep);font-weight:600}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(900px 420px at 8% -12%, rgba(15,181,201,.16), transparent 62%),
    radial-gradient(520px 340px at 96% 6%, rgba(255,122,26,.10), transparent 62%),
    linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);
  padding-bottom:88px;
}
.hero::before{
  content:"";position:absolute;inset:auto 0 -1px 0;height:1px;background:var(--line);
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;padding-top:48px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.04em;
  color:#0A8A9B;background:var(--brand-soft);border:1px solid rgba(15,181,201,.24);
  padding:6px 14px;border-radius:var(--r-pill);
}
.hero h1{
  font-size:clamp(30px,4.2vw,52px);line-height:1.22;font-weight:800;letter-spacing:-.01em;margin:20px 0 0;
}
.hero h1 .hl{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{margin-top:18px;font-size:18px;color:var(--muted);max-width:600px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.badge-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:40px}
.stat-chip{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);padding:14px 18px;
  box-shadow:var(--shadow-sm);min-width:132px;transition:.24s ease;
}
.stat-chip:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.stat-chip .num{font-size:26px;font-weight:800;color:var(--brand-deep);line-height:1.1}
.stat-chip .num em{font-style:normal;font-size:13px;font-weight:600;color:var(--accent);margin-left:3px}
.stat-chip .cap{font-size:13px;color:var(--muted);margin-top:4px}
.hero-media{position:relative}
.hero-media img{
  width:100%;border-radius:var(--r-lg);box-shadow:0 24px 60px rgba(13,31,36,.16);
  aspect-ratio:4/3;object-fit:cover;
}
.float-card{
  position:absolute;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:14px 16px;box-shadow:var(--shadow-lg);font-size:13px;color:var(--muted);max-width:200px;
}
.float-card strong{display:block;font-size:15px;color:var(--brand-deep);margin-bottom:3px}
.float-card.fc-1{left:-18px;bottom:34px}
.float-card.fc-2{right:-14px;top:28px;background:var(--brand-deep);border-color:rgba(94,234,212,.35);color:#a9c9cf}
.float-card.fc-2 strong{color:#5EEAD4}

/* ---------- Sections ---------- */
.section{padding:96px 0}
.section.alt{background:#fff}
.section-head{max-width:760px;margin-bottom:48px}
.section-head h2{font-size:clamp(26px,3vw,36px);font-weight:800;line-height:1.28;letter-spacing:-.01em}
.section-head p{margin-top:14px;color:var(--muted);font-size:17px}
.tagline{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;color:#0A8A9B;
  border-left:3px solid var(--brand);padding-left:10px;margin-bottom:14px;
}
.muted{color:var(--muted)}

/* ---------- Feature cluster (错位三卡) ---------- */
.feature-cluster{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.feature-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:32px;
  box-shadow:var(--shadow-sm);transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
  display:flex;flex-direction:column;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(15,181,201,.32)}
.feature-card.wide{grid-column:1 / -1;flex-direction:row;align-items:center;gap:32px;background:linear-gradient(120deg,#FFFFFF 0%,#F2FBFC 100%)}
.feature-card h3{font-size:21px;font-weight:700;margin-bottom:10px}
.feature-card p{color:var(--muted);font-size:15.5px}
.feature-icon{
  width:48px;height:48px;border-radius:16px;background:var(--brand-soft);color:#0A8A9B;
  display:grid;place-items:center;margin-bottom:18px;flex:0 0 auto;
}
.feature-card.wide .feature-icon{margin-bottom:0;width:60px;height:60px;border-radius:20px}
.feature-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);margin-top:16px}
.feature-link:hover{color:var(--accent)}

/* ---------- Two-column info ---------- */
.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.info-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:32px;box-shadow:var(--shadow-sm);
}
.info-panel.dark{
  background:var(--brand-deep);border-color:rgba(94,234,212,.22);color:#c6dade;
}
.info-panel.dark h3{color:#fff}
.info-panel.dark .info-list li{border-color:rgba(255,255,255,.10);color:#a9c9cf}
.info-panel.dark .info-list strong{color:#5EEAD4}
.info-panel h3{font-size:20px;font-weight:700;margin-bottom:18px}
.info-list li{display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed var(--line);font-size:15.5px;color:var(--muted)}
.info-list li:last-child{border-bottom:0;padding-bottom:0}
.info-list .idx{
  flex:0 0 auto;width:26px;height:26px;border-radius:9px;background:var(--brand-soft);color:#0A8A9B;
  font-size:13px;font-weight:700;display:grid;place-items:center;margin-top:3px;
}
.info-panel.dark .info-list .idx{background:rgba(94,234,212,.16);color:#5EEAD4}
.info-list strong{color:var(--brand-deep);font-weight:700}

/* ---------- Steps ---------- */
.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.steps::before{
  content:"";position:absolute;top:26px;left:6%;right:6%;height:2px;
  background:linear-gradient(90deg,rgba(15,181,201,.55),rgba(94,234,212,.55),rgba(255,122,26,.5));
}
.step{position:relative;padding-top:0}
.step .node{
  position:relative;z-index:2;width:52px;height:52px;border-radius:18px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:18px;box-shadow:0 12px 26px rgba(15,181,201,.28);
}
.step h3{font-size:18px;font-weight:700;margin:20px 0 8px}
.step p{font-size:14.5px;color:var(--muted)}
.step .step-note{display:inline-block;margin-top:10px;font-size:13px;color:var(--accent);font-weight:600}

/* ---------- Contrast cards ---------- */
.contrast{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.contrast-card{border-radius:var(--r-md);padding:30px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-sm)}
.contrast-card.wrong{background:linear-gradient(150deg,#FFF7F1 0%,#FFFFFF 70%);border-color:rgba(255,122,26,.28)}
.contrast-card.right{background:linear-gradient(150deg,#F1FCFD 0%,#FFFFFF 70%);border-color:rgba(15,181,201,.30)}
.contrast-card h3{font-size:19px;font-weight:700;display:flex;align-items:center;gap:10px;margin-bottom:16px}
.pill{font-size:12px;font-weight:700;padding:3px 10px;border-radius:var(--r-pill)}
.pill.warn{background:rgba(255,122,26,.14);color:#D9630D}
.pill.ok{background:rgba(15,181,201,.14);color:#0A8A9B}
.contrast-card li{font-size:15px;color:var(--muted);padding:9px 0 9px 20px;position:relative;border-bottom:1px dashed rgba(220,232,236,.9)}
.contrast-card li:last-child{border-bottom:0}
.contrast-card li::before{
  content:"";position:absolute;left:0;top:19px;width:8px;height:8px;border-radius:3px;
}
.contrast-card.wrong li::before{background:var(--accent)}
.contrast-card.right li::before{background:var(--brand)}

/* ---------- Quick lookup ---------- */
.lookup{
  background:var(--brand-deep);border-radius:var(--r-lg);padding:48px;color:#c6dade;
  display:grid;grid-template-columns:1.1fr 1.4fr;gap:40px;align-items:center;
}
.lookup h2{color:#fff;font-size:clamp(24px,2.6vw,32px);font-weight:800;line-height:1.3}
.lookup p{margin-top:14px;font-size:15.5px;color:#a9c9cf}
.lookup-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.lookup-tags span{
  font-size:13px;padding:6px 14px;border-radius:var(--r-pill);border:1px solid rgba(94,234,212,.30);
  color:#9fe9df;background:rgba(94,234,212,.08);
}
.lookup-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.lookup-item{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);border-radius:var(--r-sm);padding:18px;
  transition:.24s ease;
}
.lookup-item:hover{background:rgba(94,234,212,.10);border-color:rgba(94,234,212,.32);transform:translateY(-3px)}
.lookup-item strong{display:block;color:#fff;font-size:15px;margin-bottom:5px}
.lookup-item span{font-size:13.5px;color:#9fb8be}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:14px;max-width:880px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;
  transition:border-color .24s ease,box-shadow .24s ease;
}
.faq-item .faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;
  background:none;border:0;cursor:pointer;padding:22px 24px;font-size:18px;font-weight:700;color:var(--brand-deep);
  position:relative;
}
.faq-item .faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:var(--grad);
  opacity:0;transition:opacity .24s ease;
}
.faq-item .mark{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;border:1px solid var(--line);background:var(--bg);
  display:grid;place-items:center;font-size:16px;font-weight:700;color:var(--brand);transition:.24s ease;
}
.faq-item .faq-a{
  max-height:0;overflow:hidden;transition:max-height .3s ease;
  padding:0 24px;color:var(--muted);font-size:15.5px;
}
.faq-item.open{border-color:rgba(15,181,201,.34);box-shadow:var(--shadow-sm);background:linear-gradient(180deg,#FBFEFF 0%,#FFFFFF 100%)}
.faq-item.open .faq-q::before{opacity:1}
.faq-item.open .mark{background:var(--grad);border-color:transparent;color:#fff;transform:rotate(180deg)}
.faq-item.open .faq-a{max-height:420px;padding-bottom:24px}

/* ---------- CTA ---------- */
.cta-band{
  border-radius:var(--r-lg);padding:56px;background:
    radial-gradient(600px 260px at 90% 0%, rgba(255,122,26,.16), transparent 60%),
    linear-gradient(120deg,#0FB5C9 0%,#3FD3D6 52%,#5EEAD4 100%);
  color:#083138;display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center;
  box-shadow:0 24px 60px rgba(15,181,201,.28);
}
.cta-band h2{font-size:clamp(24px,2.8vw,34px);font-weight:800;line-height:1.3;color:#05333A}
.cta-band p{margin-top:14px;font-size:16px;color:rgba(5,51,58,.78);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.cta-band .btn-ghost{background:#fff;border-color:transparent;color:#0A6C78}
.cta-band .btn-ghost:hover{background:#EAFEFF}
.cta-band .btn-primary{background:#0D1F24;box-shadow:0 12px 28px rgba(13,31,36,.28)}
.cta-side{
  background:rgba(255,255,255,.86);border-radius:var(--r-md);padding:26px;border:1px solid rgba(255,255,255,.9);
}
.cta-side h3{font-size:17px;font-weight:700;color:#05333A}
.cta-side ul{margin-top:14px;display:flex;flex-direction:column;gap:10px}
.cta-side li{font-size:14.5px;color:#2C5A62;display:flex;gap:10px;align-items:flex-start}
.cta-side li::before{content:"✓";color:var(--brand);font-weight:800}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--brand-deep);color:#c6dade;padding:72px 0 32px;margin-top:0;position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,rgba(15,181,201,.7),rgba(94,234,212,.5),rgba(255,122,26,.6));
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .logo{color:#fff;font-size:18px}
.footer-brand p{margin-top:16px;font-size:14.5px;color:#9fb8be;max-width:320px}
.footer-col h4{font-size:16px;color:#fff;font-weight:700;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14.5px;color:#a9bfc6;transition:color .2s ease}
.footer-col a:hover{color:var(--accent)}
.footer-note{font-size:14px;color:#9fb8be;line-height:1.85}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);margin-top:48px;padding-top:24px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13px;color:#89a3aa;
}

/* ---------- Sticky bar ---------- */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:90;background:rgba(255,255,255,.97);
  border-top:1px solid var(--line);box-shadow:0 -10px 30px rgba(13,31,36,.08);
  backdrop-filter:blur(8px);
}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:12px 24px}
.sticky-text{font-size:14.5px;color:var(--muted)}
.sticky-text strong{color:var(--brand-deep)}
.sticky-actions{display:flex;gap:10px;flex:0 0 auto}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .header-cta .btn-primary{display:none}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-media{order:-1}
  .feature-card.wide{flex-direction:column;align-items:flex-start}
  .feature-card.wide .feature-icon{margin-bottom:18px}
  .steps{grid-template-columns:repeat(2,1fr);row-gap:36px}
  .steps::before{display:none}
  .lookup{grid-template-columns:1fr;padding:36px}
  .cta-band{grid-template-columns:1fr;padding:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .section{padding:64px 0}
  .hero{padding-bottom:64px}
  .hero-grid{padding-top:32px}
  .hero-sub{font-size:16.5px}
  .info-grid{grid-template-columns:1fr}
  .contrast{grid-template-columns:1fr}
  .feature-cluster{grid-template-columns:1fr}
  .lookup-grid{grid-template-columns:1fr}
  .float-card{position:static;max-width:none;margin-top:12px}
  .float-card.fc-1,.float-card.fc-2{left:auto;right:auto;top:auto;bottom:auto}
  .sticky-inner{flex-direction:column;align-items:stretch;gap:10px}
  .sticky-text{font-size:13.5px;text-align:center}
  .sticky-actions{justify-content:center}
  .sticky-actions .btn{flex:1 1 auto}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .header-inner{height:64px}
  .logo{font-size:16.5px}
  .logo-mark{width:30px;height:30px;border-radius:10px}
  .hero h1{font-size:30px}
  .section{padding:52px 0}
  .badge-row{gap:10px}
  .stat-chip{flex:1 1 46%;min-width:0;padding:12px 14px}
  .stat-chip .num{font-size:22px}
  .feature-card,.info-panel,.contrast-card{padding:24px}
  .faq-item .faq-q{font-size:16.5px;padding:18px}
  .cta-band{padding:28px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  body{padding-bottom:150px}
}

/* roulang page: category2 */
:root{
  --brand:#0FB5C9;
  --brand-deep:#0D1F24;
  --brand-soft:#E2F7FA;
  --accent:#FF7A1A;
  --aurora:#5EEAD4;
  --bg:#F5FAFB;
  --white:#FFFFFF;
  --line:#DCE8EC;
  --text:#0D1F24;
  --muted:#5C7178;
  --r-xs:12px;
  --r-sm:16px;
  --r-md:20px;
  --r-lg:28px;
  --r-xl:32px;
  --shadow-1:0 12px 32px rgba(13,31,36,.08);
  --shadow-2:0 18px 44px rgba(13,31,36,.12);
  --grad:linear-gradient(135deg,#0FB5C9 0%,#5EEAD4 55%,#FF7A1A 130%);
  --grad-soft:linear-gradient(135deg,rgba(15,181,201,.12) 0%,rgba(94,234,212,.16) 55%,rgba(255,122,26,.12) 100%);
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body.site-body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(circle at 12% 6%,rgba(15,181,201,.14),transparent 46%),
    radial-gradient(circle at 88% 2%,rgba(255,122,26,.10),transparent 40%),
    radial-gradient(circle at 50% 100%,rgba(94,234,212,.12),transparent 50%);
  background-repeat:no-repeat;
  padding-bottom:96px;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:3px solid rgba(15,181,201,.35);outline-offset:2px;border-radius:6px;}

.site-body .container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(140%) blur(6px);
}
.nav-inner{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:19px;
  font-weight:800;
  letter-spacing:.4px;
  color:var(--brand-deep);
  white-space:nowrap;
}
.logo:hover{color:var(--brand);}
.logo-mark{
  width:36px;height:36px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--grad);
  color:#fff;
  box-shadow:0 8px 18px rgba(15,181,201,.28);
  flex:none;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  color:var(--muted);
}
.nav-link:hover{background:var(--brand-soft);color:var(--brand-deep);}
.nav-link.active{color:var(--brand-deep);}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:3px;
  border-radius:999px;
  background:var(--grad);
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:14px;
  border:1px solid var(--line);
  background:#fff;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-deep);transition:transform .2s ease,opacity .2s ease;}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:8px 24px 20px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:block;
  padding:13px 4px;
  font-size:16px;
  font-weight:600;
  color:var(--brand-deep);
  border-bottom:1px dashed var(--line);
}
.mobile-drawer a:last-child{border-bottom:0;}
.mobile-drawer a.active{color:var(--brand);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 26px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.2px;
  white-space:nowrap;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,color .22s ease,border-color .22s ease;
}
.btn-sm{min-height:44px;padding:0 20px;font-size:14px;}
.btn-primary{
  background:var(--grad);
  color:#fff;
  box-shadow:0 10px 24px rgba(15,181,201,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(15,181,201,.36);}
.btn-primary:active{transform:scale(.98);}
.btn-outline{
  background:#fff;
  color:var(--brand-deep);
  border:1px solid var(--line);
}
.btn-outline:hover{background:var(--brand-soft);border-color:rgba(15,181,201,.4);transform:translateY(-2px);}
.btn-outline:active{transform:scale(.98);}
.btn-ghost{
  color:var(--brand);
  background:transparent;
  border:1px solid transparent;
  padding:0 18px;
}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);}
.btn-ghost:active{transform:scale(.98);}

/* ---------- Breadcrumb ---------- */
.crumbs{padding:20px 0 4px;}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);}
.crumbs li{display:inline-flex;align-items:center;gap:8px;}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:var(--line);font-size:12px;}
.crumbs .current{color:var(--brand-deep);font-weight:600;}

/* ---------- Hero ---------- */
.hero{padding:28px 0 8px;}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,6.4fr) minmax(0,5.6fr);
  gap:48px;
  align-items:center;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  padding:48px;
  box-shadow:var(--shadow-1);
  position:relative;
  overflow:hidden;
}
.hero-grid::after{
  content:"";
  position:absolute;
  right:-90px;top:-90px;
  width:280px;height:280px;
  border-radius:50%;
  background:var(--grad-soft);
  pointer-events:none;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--brand-soft);
  color:#0A8D9C;
  font-size:13px;
  font-weight:700;
  letter-spacing:.6px;
}
.hero-title{
  margin-top:18px;
  font-size:46px;
  line-height:1.22;
  font-weight:800;
  letter-spacing:-.5px;
  color:var(--brand-deep);
}
.hero-title em{
  font-style:normal;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  margin-top:18px;
  font-size:17px;
  color:var(--muted);
  max-width:560px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:34px;
  padding-top:26px;
  border-top:1px dashed var(--line);
}
.hero-stats li{
  flex:1 1 140px;
  min-width:130px;
  padding:14px 16px;
  border-radius:var(--r-sm);
  background:var(--bg);
  border:1px solid var(--line);
}
.hero-stats strong{display:block;font-size:24px;font-weight:800;color:var(--brand-deep);line-height:1.2;}
.hero-stats strong span{font-size:14px;font-weight:600;color:var(--accent);margin-left:2px;}
.hero-stats .hs-note{display:block;font-size:13px;color:var(--muted);margin-top:4px;}
.hero-media{position:relative;z-index:1;}
.hero-media img{
  width:100%;
  border-radius:var(--r-xl);
  box-shadow:var(--shadow-2);
  object-fit:cover;
  aspect-ratio:16/11;
}
.float-badge{
  position:absolute;
  display:flex;
  align-items:center;
  gap:10px;
  padding:12px 16px;
  border-radius:var(--r-sm);
  background:rgba(255,255,255,.97);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  font-size:13px;
  color:var(--muted);
}
.float-badge b{display:block;font-size:18px;color:var(--brand-deep);line-height:1.2;}
.float-badge .fb-ico{
  width:34px;height:34px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--grad);color:#fff;font-size:14px;flex:none;
}
.badge-a{left:-18px;bottom:26px;}
.badge-b{right:-14px;top:24px;}

/* ---------- Filter bar ---------- */
.filter-section{padding:32px 0 0;}
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  padding:16px 20px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);
}
.filter-label{font-size:14px;font-weight:700;color:var(--brand-deep);margin-right:4px;}
.chip{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:0 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  font-size:14px;
  font-weight:600;
  color:var(--muted);
  transition:all .2s ease;
}
.chip:hover{border-color:rgba(15,181,201,.45);color:var(--brand-deep);background:var(--brand-soft);}
.chip.active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 8px 18px rgba(15,181,201,.24);}
.filter-note{margin-left:auto;font-size:13px;color:var(--muted);}

/* ---------- Section base ---------- */
.section{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:36px;}
.section-head h2{
  font-size:32px;
  line-height:1.3;
  font-weight:800;
  color:var(--brand-deep);
  letter-spacing:-.3px;
}
.section-head h2::before{
  content:"";
  display:block;
  width:56px;height:4px;
  border-radius:999px;
  background:var(--grad);
  margin-bottom:16px;
}
.section-head p{margin-top:14px;font-size:16px;color:var(--muted);}
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:700;
  background:var(--brand-soft);
  color:#0A8D9C;
}
.tag-orange{background:rgba(255,122,26,.12);color:#C2570D;}
.tag-green{background:rgba(94,234,212,.22);color:#0B7F76;}

/* ---------- Timeline ---------- */
.timeline{position:relative;padding-left:0;}
.timeline::before{
  content:"";
  position:absolute;
  left:118px;top:12px;bottom:12px;
  width:2px;
  background:linear-gradient(180deg,rgba(15,181,201,.5),rgba(94,234,212,.5),rgba(255,122,26,.35));
  border-radius:999px;
}
.timeline-item{
  display:grid;
  grid-template-columns:96px 24px minmax(0,1fr);
  gap:0;
  padding:0 0 20px;
  align-items:flex-start;
}
.date-badge{
  width:96px;
  padding:12px 10px;
  border-radius:var(--r-sm);
  background:var(--brand-deep);
  color:#fff;
  text-align:center;
  box-shadow:var(--shadow-1);
}
.date-badge .d-day{display:block;font-size:19px;font-weight:800;line-height:1.15;letter-spacing:.4px;}
.date-badge .d-time{display:block;font-size:12.5px;color:rgba(255,255,255,.72);margin-top:4px;}
.tl-dot{
  position:relative;
  width:24px;
  display:flex;
  justify-content:center;
  padding-top:20px;
}
.tl-dot span{
  width:12px;height:12px;border-radius:50%;
  background:#fff;
  border:3px solid var(--brand);
  box-shadow:0 0 0 4px rgba(15,181,201,.12);
}
.timeline-card{
  margin-left:18px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:22px 24px;
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.timeline-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(15,181,201,.35);}
.timeline-card h3{font-size:19px;font-weight:700;color:var(--brand-deep);}
.timeline-card p{margin-top:8px;font-size:15px;color:var(--muted);}
.tl-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:10px;}
.tl-foot{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:14px;font-size:13px;color:var(--muted);}
.tl-foot i{color:var(--brand);margin-right:5px;}

/* ---------- Horizontal scroll cards ---------- */
.scroller{
  display:flex;
  gap:22px;
  overflow-x:auto;
  padding:6px 4px 22px;
  scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;
}
.scroller::-webkit-scrollbar{height:8px;}
.scroller::-webkit-scrollbar-thumb{background:rgba(15,181,201,.35);border-radius:999px;}
.scroller::-webkit-scrollbar-track{background:var(--brand-soft);border-radius:999px;}
.news-card{
  flex:0 0 320px;
  scroll-snap-align:start;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .24s ease,box-shadow .24s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.news-card .thumb{position:relative;overflow:hidden;}
.news-card .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease;}
.news-card:hover .thumb img{transform:scale(1.05);}
.news-card .thumb .tag{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);}
.news-body{padding:20px 22px 22px;}
.news-body h3{font-size:18px;font-weight:700;line-height:1.45;color:var(--brand-deep);}
.news-card:hover .news-body h3{color:var(--brand);}
.news-body p{margin-top:10px;font-size:14.5px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-foot{display:flex;align-items:center;justify-content:space-between;margin-top:16px;font-size:13px;color:var(--muted);}
.news-foot .arrow{color:var(--accent);font-weight:700;}

/* ---------- Feature split ---------- */
.feature-grid{
  display:grid;
  grid-template-columns:minmax(0,5.5fr) minmax(0,6.5fr);
  gap:48px;
  align-items:center;
}
.feature-media img{width:100%;border-radius:var(--r-xl);box-shadow:var(--shadow-2);aspect-ratio:4/3;object-fit:cover;}
.feature-list{margin-top:26px;display:grid;gap:16px;}
.feature-item{
  display:flex;
  gap:16px;
  padding:20px 22px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.feature-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.feature-ico{
  width:44px;height:44px;flex:none;
  border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-soft);
  color:#0A8D9C;
  font-size:17px;
}
.feature-item h3{font-size:17px;font-weight:700;color:var(--brand-deep);}
.feature-item p{margin-top:6px;font-size:14.5px;color:var(--muted);}

/* ---------- Stat strip ---------- */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
  margin-top:44px;
}
.stat-card{
  background:var(--brand-deep);
  border-radius:var(--r-lg);
  padding:24px 22px;
  border:1px solid rgba(94,234,212,.28);
  color:#fff;
  transition:transform .22s ease,box-shadow .22s ease;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(13,31,36,.28);}
.stat-card .num{font-size:30px;font-weight:800;line-height:1.15;color:var(--aurora);}
.stat-card .num span{font-size:13px;font-weight:600;color:rgba(255,255,255,.7);margin-left:3px;}
.stat-card .desc{margin-top:8px;font-size:13.5px;color:rgba(255,255,255,.72);}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:44px;align-items:start;}
.faq-side{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:28px;
  box-shadow:var(--shadow-1);
}
.faq-side h3{font-size:19px;font-weight:800;color:var(--brand-deep);}
.faq-side p{margin-top:10px;font-size:14.5px;color:var(--muted);}
.faq-side .btn{margin-top:20px;width:100%;}
.faq-list{display:grid;gap:14px;}
.faq-item{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:box-shadow .22s ease,border-color .22s ease,background-color .22s ease;
}
.faq-item::before{
  content:"";
  position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--grad);
  opacity:0;
  transition:opacity .22s ease;
}
.faq-item[open]{box-shadow:var(--shadow-1);border-color:rgba(15,181,201,.35);background:linear-gradient(180deg,#FBFEFF,#fff);}
.faq-item[open]::before{opacity:1;}
.faq-item summary{
  list-style:none;
  display:flex;
  align-items:center;
  gap:14px;
  padding:20px 24px;
  font-size:18px;
  font-weight:700;
  color:var(--brand-deep);
  cursor:pointer;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .plus{
  margin-left:auto;
  width:30px;height:30px;flex:none;
  border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-soft);
  color:#0A8D9C;
  font-size:14px;
  transition:transform .24s ease,background-color .24s ease,color .24s ease;
}
.faq-item[open] summary .plus{transform:rotate(180deg);background:var(--brand);color:#fff;}
.faq-item .answer{padding:0 24px 22px 24px;font-size:15.5px;color:var(--muted);animation:fadeIn .3s ease;}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}

/* ---------- CTA ---------- */
.cta-band{
  border-radius:var(--r-xl);
  background:linear-gradient(135deg,#0D1F24 0%,#0E3A42 55%,#0D2A2F 100%);
  padding:52px 48px;
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:36px;
  align-items:center;
  position:relative;
  overflow:hidden;
  box-shadow:var(--shadow-2);
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;bottom:-80px;
  width:280px;height:280px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(15,181,201,.35),transparent 70%);
}
.cta-band h2{font-size:30px;font-weight:800;line-height:1.35;color:#fff;}
.cta-band p{margin-top:14px;font-size:15.5px;color:rgba(255,255,255,.72);max-width:560px;}
.cta-panel{
  position:relative;
  z-index:1;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(94,234,212,.28);
  border-radius:var(--r-lg);
  padding:24px;
}
.cta-panel .row{display:flex;align-items:center;gap:12px;font-size:14.5px;color:rgba(255,255,255,.82);padding:9px 0;}
.cta-panel .row i{color:var(--aurora);}
.cta-panel .btn{margin-top:16px;width:100%;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:88px;
  background:var(--brand-deep);
  color:rgba(255,255,255,.72);
  position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(94,234,212,.6),rgba(255,122,26,.5),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,4.2fr) minmax(0,2.6fr) minmax(0,2.6fr) minmax(0,3.6fr);
  gap:40px;
  padding:64px 0 40px;
}
.site-footer .logo{color:#fff;font-size:18px;}
.site-footer .logo:hover{color:var(--aurora);}
.footer-brand p{margin-top:16px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px;}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.4px;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.66);}
.footer-col a:hover{color:var(--accent);}
.footer-note{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.62);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 26px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:13.5px;
  color:rgba(255,255,255,.5);
}

/* ---------- Sticky bottom bar ---------- */
.sticky-cta{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:70;
  background:rgba(255,255,255,.98);
  border-top:1px solid var(--line);
  box-shadow:0 -8px 28px rgba(13,31,36,.08);
}
.sticky-inner{
  display:flex;
  align-items:center;
  gap:18px;
  padding-top:12px;
  padding-bottom:12px;
}
.sticky-text{font-size:14.5px;color:var(--muted);}
.sticky-text b{color:var(--brand-deep);}
.sticky-actions{margin-left:auto;display:flex;gap:12px;}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .hero-title{font-size:38px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;padding:36px;}
  .feature-grid{grid-template-columns:1fr;gap:32px;}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .cta-band{grid-template-columns:1fr;padding:40px 32px;}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .timeline::before{left:104px;}
  .timeline-item{grid-template-columns:84px 24px minmax(0,1fr);}
  .date-badge{width:84px;}
}
@media (max-width:860px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .nav-actions .btn{display:none;}
  .nav-inner{height:64px;}
}
@media (max-width:768px){
  .site-body{font-size:15.5px;padding-bottom:132px;}
  .site-body .container{padding-left:16px;padding-right:16px;}
  .section{padding:48px 0;}
  .hero{padding:18px 0 0;}
  .hero-grid{padding:26px 20px;border-radius:var(--r-lg);}
  .hero-title{font-size:31px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .hero-stats{gap:10px;}
  .hero-stats li{flex:1 1 46%;min-width:0;padding:12px;}
  .hero-stats strong{font-size:20px;}
  .float-badge{display:none;}
  .section-head h2{font-size:24px;}
  .filter-bar{padding:14px;gap:10px;}
  .filter-note{width:100%;margin-left:0;}
  .chip{min-height:38px;padding:0 14px;font-size:13.5px;}
  .timeline::before{left:24px;}
  .timeline-item{grid-template-columns:minmax(0,1fr);padding-left:44px;position:relative;}
  .date-badge{width:auto;display:inline-flex;align-items:baseline;gap:8px;padding:8px 14px;justify-content:flex-start;}
  .date-badge .d-time{margin-top:0;}
  .tl-dot{position:absolute;left:8px;top:10px;width:24px;padding-top:0;}
  .timeline-card{margin-left:12px;margin-top:12px;padding:18px;}
  .news-card{flex:0 0 82%;}
  .stat-strip{grid-template-columns:1fr;gap:14px;}
  .cta-band{padding:32px 22px;border-radius:var(--r-lg);}
  .cta-band h2{font-size:23px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:44px 0 28px;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .faq-item summary{font-size:16.5px;padding:17px 18px;}
  .faq-item .answer{padding:0 18px 18px;}
  .sticky-inner{flex-wrap:wrap;gap:10px;padding-top:10px;padding-bottom:10px;}
  .sticky-text{font-size:13.5px;width:100%;}
  .sticky-actions{margin-left:0;width:100%;gap:10px;}
  .sticky-actions .btn{flex:1;min-height:44px;padding:0 14px;font-size:14px;}
}
@media (max-width:520px){
  .hero-title{font-size:27px;}
  .btn{padding:0 20px;}
  .section-head h2{font-size:22px;}
  .stat-card .num{font-size:26px;}
}

/* roulang page: category3 */
:root{
  --ice:#0FB5C9;
  --ice-deep:#0a7d8c;
  --ink:#0D1F24;
  --mist:#E2F7FA;
  --flash:#FF7A1A;
  --aurora:#5EEAD4;
  --bg:#F5FAFB;
  --white:#FFFFFF;
  --line:#DCE8EC;
  --muted:#5C7178;
  --grad:linear-gradient(135deg,#0FB5C9 0%,#5EEAD4 55%,#FF7A1A 130%);
  --shadow-s:0 12px 32px rgba(13,31,36,.08);
  --shadow-m:0 18px 44px rgba(13,31,36,.12);
  --r-btn:999px;
  --r-sm:16px;
  --r-md:20px;
  --r-lg:28px;
  --r-xl:32px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  padding-bottom:104px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:800;letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(15,181,201,.22)}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-alt{background:var(--white)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--mist);color:var(--ice-deep);
  font-size:13px;font-weight:700;letter-spacing:.08em;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--grad)}
.section-title{font-size:clamp(26px,3.2vw,36px);font-weight:800}
.section-lead{margin-top:14px;color:var(--muted);font-size:16.5px;max-width:760px}
.section-head{margin-bottom:48px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:.02em;white-space:nowrap}
.logo-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad);color:#fff;
  display:grid;place-items:center;box-shadow:0 8px 20px rgba(15,181,201,.28);flex:0 0 auto;
}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;padding:9px 15px;border-radius:999px;
  font-size:15px;font-weight:600;color:var(--muted);
}
.nav-link:hover{background:var(--mist);color:var(--ink)}
.nav-link.active{color:var(--ink);background:var(--mist)}
.nav-link.active::after{
  content:"";position:absolute;left:15px;right:15px;bottom:3px;height:3px;border-radius:999px;background:var(--grad);
}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{
  max-height:0;overflow:hidden;transition:max-height .23s ease;
  border-top:1px solid transparent;background:#fff;
}
.mobile-drawer.open{max-height:360px;border-top-color:var(--line)}
.mobile-drawer .drawer-inner{padding:12px 24px 20px;display:flex;flex-direction:column;gap:4px}
.mobile-drawer a{padding:12px 14px;border-radius:14px;font-weight:600;color:var(--muted)}
.mobile-drawer a:hover{background:var(--mist);color:var(--ink)}
.mobile-drawer a.active{background:var(--mist);color:var(--ink)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 26px rgba(15,181,201,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(15,181,201,.34)}
.btn-secondary{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-secondary:hover{background:var(--mist);border-color:#bfe6ed;transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--ice-deep)}
.btn-ghost:hover{background:var(--mist)}
.btn:active{transform:scale(.98)}
.btn:focus-visible{outline:3px solid rgba(15,181,201,.35);outline-offset:2px}
.btn-sm{padding:9px 18px;font-size:14px}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:64px 0 84px;
  background:
    radial-gradient(820px 420px at 88% -8%,rgba(15,181,201,.18),transparent 62%),
    radial-gradient(560px 320px at 8% 108%,rgba(255,122,26,.12),transparent 66%),
    linear-gradient(180deg,#FFFFFF 0%,#F5FAFB 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(15,181,201,.16) 1px,transparent 1px);
  background-size:26px 26px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 72%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 72%);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(30px,4.2vw,50px);font-weight:800;margin:20px 0 0;letter-spacing:.005em}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:20px;font-size:17.5px;color:var(--muted);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.stat-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.stat{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:13px 18px;box-shadow:var(--shadow-s);min-width:132px;
}
.stat b{display:block;font-size:25px;line-height:1.1;color:var(--ink)}
.stat b i{font-style:normal;font-size:12px;font-weight:600;color:var(--muted);margin-left:3px}
.stat span{display:block;font-size:13px;color:var(--muted);margin-top:4px}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;border-radius:var(--r-xl);box-shadow:var(--shadow-m);aspect-ratio:4/3;object-fit:cover;
}
.hero-badge{
  position:absolute;background:rgba(13,31,36,.94);color:#fff;border:1px solid rgba(94,234,212,.42);
  border-radius:var(--r-sm);padding:12px 16px;box-shadow:0 16px 36px rgba(13,31,36,.28);
}
.hero-badge b{display:block;font-size:20px;color:var(--aurora);line-height:1.15}
.hero-badge span{font-size:12.5px;color:rgba(255,255,255,.78)}
.hero-badge.pos-a{left:-18px;bottom:44px}
.hero-badge.pos-b{right:-14px;top:38px}

/* ---------- Compare table ---------- */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  background:#fff;box-shadow:var(--shadow-s);
}
table.compare{width:100%;border-collapse:collapse;font-size:15.5px}
table.compare thead th{
  background:var(--ink);color:#fff;text-align:left;padding:18px 22px;font-weight:700;font-size:15px;
}
table.compare thead th:first-child{background:#0a181c;color:rgba(255,255,255,.7)}
table.compare tbody td{padding:17px 22px;border-top:1px solid var(--line);vertical-align:top}
table.compare tbody tr:nth-child(even) td{background:#F7FCFD}
table.compare tbody td:first-child{font-weight:700;color:var(--ink);width:20%}
table.compare tbody td:nth-child(2){color:var(--muted)}
table.compare tbody td:nth-child(3){color:var(--ice-deep);font-weight:600}
.table-note{margin-top:16px;font-size:13.5px;color:var(--muted)}

/* ---------- Skill modules ---------- */
.skill-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:24px}
.skill-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-s);display:flex;flex-direction:column;
  transition:transform .24s ease,box-shadow .24s ease;
}
.skill-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-m)}
.skill-card.span-4{grid-column:span 4}
.skill-card.span-2{grid-column:span 2}
.skill-card.span-3{grid-column:span 3}
.skill-card .thumb{width:100%;aspect-ratio:16/9;object-fit:cover}
.skill-body{padding:26px 28px 28px;display:flex;flex-direction:column;gap:12px;flex:1}
.skill-card.span-2 .skill-body{padding:24px}
.skill-body h3{font-size:21px}
.skill-body p{color:var(--muted);font-size:15.5px}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px}
.chip{
  font-size:12.5px;font-weight:600;padding:5px 12px;border-radius:999px;
  background:var(--mist);color:var(--ice-deep);
}
.chip.orange{background:rgba(255,122,26,.12);color:#c2570c}
.skill-link{margin-top:auto;font-size:14px;font-weight:700;color:var(--ice-deep);display:inline-flex;gap:6px;align-items:center}
.skill-link:hover{color:var(--flash)}
.skill-metrics{display:flex;gap:12px;flex-wrap:wrap;margin-top:16px}
.metric{
  background:var(--ink);color:#fff;border:1px solid rgba(94,234,212,.35);
  border-radius:14px;padding:10px 14px;min-width:104px;
}
.metric b{display:block;font-size:19px;color:var(--aurora);line-height:1.15}
.metric span{font-size:12px;color:rgba(255,255,255,.72)}

/* ---------- Timeline ---------- */
.timeline{position:relative;padding-left:38px;max-width:820px}
.timeline::before{
  content:"";position:absolute;left:11px;top:8px;bottom:8px;width:2px;
  background:var(--grad);opacity:.6;border-radius:2px;
}
.tl-item{position:relative;padding-bottom:30px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-33px;top:7px;width:14px;height:14px;
  border-radius:50%;background:#fff;border:3px solid var(--ice);box-shadow:0 0 0 4px rgba(15,181,201,.10);
}
.tl-time{font-size:13px;font-weight:700;color:var(--ice-deep);letter-spacing:.04em}
.tl-item h3{font-size:18.5px;margin-top:4px}
.tl-item p{color:var(--muted);font-size:15.5px;margin-top:6px}

/* ---------- Record metrics ---------- */
.record-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.record{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--shadow-s);transition:transform .24s ease,box-shadow .24s ease;
}
.record:hover{transform:translateY(-4px);box-shadow:var(--shadow-m)}
.record .tag{font-size:12px;font-weight:700;color:var(--flash);letter-spacing:.1em}
.record h3{font-size:17.5px;margin-top:10px}
.record p{font-size:14.5px;color:var(--muted);margin-top:8px}

/* ---------- Audience ---------- */
.audience-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:28px}
.aud-card{
  border-radius:var(--r-lg);padding:32px;border:1px solid var(--line);
  background:#fff;box-shadow:var(--shadow-s);
}
.aud-card.dark{
  background:linear-gradient(160deg,#0D1F24 0%,#123840 100%);color:#fff;border-color:rgba(94,234,212,.3);
}
.aud-card.dark p{color:rgba(255,255,255,.75)}
.aud-card h3{font-size:22px;margin-bottom:12px}
.aud-card p{color:var(--muted);font-size:15.5px}
.aud-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.aud-list li{position:relative;padding-left:22px;font-size:15.5px}
.aud-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:3px;background:var(--grad);
}
.aud-card.dark .aud-list li{color:rgba(255,255,255,.86)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.faq-item{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow-s);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--grad);
  opacity:0;transition:opacity .25s ease;
}
.faq-item[open]::before{opacity:1}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 60px 20px 26px;
  font-size:18px;font-weight:700;position:relative;transition:background-color .22s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);
  font-size:24px;font-weight:400;color:var(--ice);line-height:1;
}
.faq-item[open] summary::after{content:"–"}
.faq-item[open] summary{background:var(--mist)}
.faq-body{padding:6px 26px 24px;color:var(--muted);font-size:15.5px;animation:fadeIn .3s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ---------- CTA / form ---------- */
.cta-panel{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:linear-gradient(150deg,#0D1F24 0%,#114048 100%);
  color:#fff;padding:56px;border:1px solid rgba(94,234,212,.28);
}
.cta-panel::after{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(15,181,201,.35),transparent 68%);
}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.cta-grid h2{font-size:clamp(24px,3vw,32px)}
.cta-grid p{color:rgba(255,255,255,.76);margin-top:14px;font-size:15.5px}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:10px}
.cta-points li{position:relative;padding-left:22px;font-size:15px;color:rgba(255,255,255,.86)}
.cta-points li::before{
  content:"";position:absolute;left:0;top:10px;width:9px;height:9px;border-radius:3px;background:var(--grad);
}
.cta-form{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-lg);padding:28px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:8px;color:rgba(255,255,255,.86)}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:12px;border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.96);color:var(--ink);font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:96px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--ice);box-shadow:0 0 0 3px rgba(15,181,201,.3);
}
.form-ok{
  margin-top:14px;padding:12px 16px;border-radius:12px;font-size:14px;
  background:rgba(94,234,212,.14);border:1px solid rgba(94,234,212,.4);color:#ccfbf1;
}
.form-tip{margin-top:12px;font-size:12.5px;color:rgba(255,255,255,.6)}

/* ---------- Breadcrumb ---------- */
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--muted);margin-bottom:18px;flex-wrap:wrap}
.breadcrumb a:hover{color:var(--ice-deep)}
.breadcrumb .sep{color:#a9c2c8}
.breadcrumb .current{color:var(--ink);font-weight:600}

/* ---------- Sticky CTA bar ---------- */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:55;
  background:rgba(255,255,255,.97);border-top:1px solid var(--line);
  box-shadow:0 -10px 30px rgba(13,31,36,.08);backdrop-filter:blur(8px);
}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 0}
.sticky-text{font-size:14.5px;color:var(--muted);font-weight:500}
.sticky-text b{color:var(--ink)}
.sticky-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 28px;margin-top:8px;
  border-top:1px solid rgba(94,234,212,.18);position:relative;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(15,181,201,.7),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .logo{color:#fff;font-size:19px}
.footer-brand p{font-size:14.5px;margin-top:16px;color:rgba(255,255,255,.66);max-width:320px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14.5px;color:rgba(255,255,255,.7)}
.footer-col a:hover{color:var(--flash)}
.footer-note{font-size:14.5px;color:rgba(255,255,255,.66);line-height:1.9}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{max-width:560px}
  .hero-badge.pos-a{left:8px}
  .hero-badge.pos-b{right:8px}
  .skill-grid{grid-template-columns:repeat(4,1fr)}
  .skill-card.span-4{grid-column:span 4}
  .skill-card.span-2{grid-column:span 2}
  .skill-card.span-3{grid-column:span 2}
  .record-grid{grid-template-columns:repeat(2,1fr)}
  .audience-grid{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:900px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn-primary{display:none}
}
@media (max-width:768px){
  body{padding-bottom:118px;font-size:15.5px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .section-head{margin-bottom:34px}
  .header-inner{height:64px}
  .hero{padding:44px 0 60px}
  .hero h1{font-size:30px}
  .hero-sub{font-size:16px}
  .hero-actions{gap:12px}
  .hero-actions .btn{flex:1 1 auto}
  .stat{flex:1 1 46%;min-width:0}
  .skill-grid{grid-template-columns:1fr;gap:18px}
  .skill-card.span-4,.skill-card.span-2,.skill-card.span-3{grid-column:span 1}
  .record-grid{grid-template-columns:1fr}
  .cta-panel{padding:34px 24px;border-radius:24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .sticky-inner{flex-direction:column;align-items:stretch;gap:10px;padding:12px 0}
  .sticky-text{font-size:13.5px;text-align:center}
  .sticky-actions{gap:10px}
  .sticky-actions .btn{flex:1 1 0;min-height:46px}
  table.compare{font-size:14px}
  table.compare thead th,table.compare tbody td{padding:13px 14px}
  .table-wrap{border-radius:var(--r-md);overflow-x:auto}
  .faq-item summary{font-size:16.5px;padding:17px 52px 17px 20px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .hero-badge.pos-a,.hero-badge.pos-b{position:static;margin-top:12px;display:inline-block}
  .hero-visual{display:flex;flex-direction:column}
  .stat b{font-size:22px}
  .cta-form{padding:20px}
}

/* roulang page: category4 */
:root{
    --brand:#0FB5C9;
    --brand-deep:#0D1F24;
    --brand-light:#E2F7FA;
    --accent:#FF7A1A;
    --mint:#5EEAD4;
    --bg:#F5FAFB;
    --white:#FFFFFF;
    --line:#DCE8EC;
    --text:#0D1F24;
    --muted:#5C7178;
    --grad:linear-gradient(135deg,#0FB5C9 0%,#5EEAD4 55%,#FF7A1A 130%);
    --radius-sm:16px;
    --radius-md:20px;
    --radius-lg:28px;
    --radius-xl:32px;
    --radius-pill:999px;
    --shadow:0 12px 32px rgba(13,31,36,.08);
    --shadow-hover:0 18px 44px rgba(13,31,36,.12);
    --shadow-soft:0 6px 18px rgba(15,181,201,.18);
    --section:96px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  html body{
    margin:0;
    padding:0 0 104px;
    background-color:var(--bg);
    color:var(--text);
    font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
    font-size:17px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;cursor:pointer;border:none;background:none;}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
  ul,ol{list-style:none;}
  h1,h2,h3,h4{line-height:1.3;font-weight:800;color:var(--brand-deep);}
  ::selection{background:var(--brand-light);color:var(--brand-deep);}

  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

  /* ---------- header ---------- */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:var(--white);
    border-bottom:1px solid var(--line);
  }
  .header-inner{
    display:flex;align-items:center;justify-content:space-between;gap:24px;
    height:72px;
  }
  .logo{
    display:inline-flex;align-items:center;gap:10px;
    font-size:19px;font-weight:800;letter-spacing:.4px;color:var(--brand-deep);
    white-space:nowrap;
  }
  .logo-mark{
    width:34px;height:34px;border-radius:11px;
    display:grid;place-items:center;color:#fff;
    background:var(--grad);box-shadow:var(--shadow-soft);
  }
  .nav-links{display:flex;align-items:center;gap:4px;}
  .nav-link{
    position:relative;
    padding:9px 15px;border-radius:var(--radius-pill);
    font-size:15px;color:var(--muted);
    transition:background .2s ease,color .2s ease;
  }
  .nav-link:hover{background:var(--brand-light);color:var(--brand-deep);}
  .nav-link.active{background:var(--brand-light);color:var(--brand-deep);font-weight:700;}
  .nav-link.active::after{
    content:"";position:absolute;left:50%;bottom:3px;transform:translateX(-50%);
    width:22px;height:3px;border-radius:3px;background:var(--grad);
  }
  .nav-cta{
    padding:10px 22px;border-radius:var(--radius-pill);
    background:var(--grad);color:#fff;font-size:15px;font-weight:600;
    box-shadow:var(--shadow-soft);
    transition:transform .2s ease,box-shadow .2s ease,background-position .3s ease;
    white-space:nowrap;
  }
  .nav-cta:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,122,26,.28);}
  .nav-cta:active{transform:scale(.98);}
  .menu-toggle{
    display:none;width:44px;height:44px;border-radius:12px;
    place-items:center;color:var(--brand-deep);
    background:var(--brand-light);
  }
  .mobile-drawer{
    position:fixed;left:0;right:0;top:64px;z-index:79;
    background:var(--white);border-bottom:1px solid var(--line);
    padding:14px 20px 22px;
    display:flex;flex-direction:column;gap:6px;
    transform:translateY(-10px);opacity:0;pointer-events:none;
    transition:transform .22s ease,opacity .22s ease;
    box-shadow:0 18px 32px rgba(13,31,36,.10);
  }
  .mobile-drawer.open{transform:translateY(0);opacity:1;pointer-events:auto;}
  .mobile-drawer a{
    padding:12px 14px;border-radius:12px;font-size:16px;color:var(--brand-deep);
  }
  .mobile-drawer a:hover,.mobile-drawer a.active{background:var(--brand-light);}
  .mobile-drawer .drawer-cta{
    margin-top:8px;text-align:center;color:#fff;font-weight:600;background:var(--grad);
  }

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 28px;border-radius:var(--radius-pill);
    font-size:16px;font-weight:600;line-height:1;
    transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
  }
  .btn-primary{background:var(--grad);color:#fff;box-shadow:var(--shadow-soft);}
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(15,181,201,.32);}
  .btn-primary:active{transform:scale(.98);}
  .btn-ghost{background:var(--white);color:var(--brand-deep);border:1px solid var(--line);}
  .btn-ghost:hover{background:var(--brand-light);border-color:#BFE7EE;}
  .btn-ghost:active{transform:scale(.98);}
  .btn-link{color:var(--brand);font-weight:600;font-size:15px;padding:0;}
  .btn-link:hover{color:var(--accent);}
  .btn:focus-visible,.nav-link:focus-visible,.faq-q:focus-visible,a:focus-visible{
    outline:3px solid rgba(15,181,201,.35);outline-offset:2px;border-radius:8px;
  }

  /* ---------- section base ---------- */
  .section{padding:var(--section) 0;}
  .section-alt{background:var(--white);}
  .section-head{max-width:760px;margin-bottom:44px;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 14px;border-radius:var(--radius-pill);
    background:var(--brand-light);color:#0A8C9C;
    font-size:13px;font-weight:700;letter-spacing:.4px;
    margin-bottom:16px;
  }
  .eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--grad);}
  h2.section-title{font-size:32px;letter-spacing:-.4px;}
  .section-sub{margin-top:14px;color:var(--muted);font-size:16px;}

  /* ---------- breadcrumb ---------- */
  .breadcrumb{
    display:flex;align-items:center;gap:8px;flex-wrap:wrap;
    font-size:14px;color:var(--muted);
    padding:22px 0 0;
  }
  .breadcrumb a{color:var(--muted);}
  .breadcrumb a:hover{color:var(--brand);}
  .breadcrumb .sep{color:#A9C4CB;}
  .breadcrumb .current{color:var(--brand-deep);font-weight:600;}

  /* ---------- hero ---------- */
  .hero{
    position:relative;overflow:hidden;
    background:
      radial-gradient(720px 340px at 12% 6%,rgba(15,181,201,.16),transparent 62%),
      radial-gradient(420px 260px at 92% 88%,rgba(255,122,26,.13),transparent 66%),
      var(--bg);
    padding:36px 0 84px;
  }
  .hero::after{
    content:"";position:absolute;right:-60px;top:40px;width:320px;height:320px;
    background-image:radial-gradient(circle,rgba(15,181,201,.18) 1px,transparent 1px);
    background-size:22px 22px;opacity:.5;pointer-events:none;
  }
  .hero-grid{
    display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;
    position:relative;z-index:1;
  }
  .hero h1{font-size:46px;letter-spacing:-1px;margin-bottom:18px;}
  .hero h1 .hl{
    background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .hero-lead{font-size:18px;color:var(--muted);max-width:560px;margin-bottom:28px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
  .hero-stats{display:flex;flex-wrap:wrap;gap:14px;}
  .stat-chip{
    background:var(--white);border:1px solid var(--line);border-radius:var(--radius-sm);
    padding:12px 18px;min-width:132px;box-shadow:var(--shadow);
  }
  .stat-chip b{display:block;font-size:24px;color:var(--brand-deep);font-weight:800;line-height:1.2;}
  .stat-chip span{font-size:13px;color:var(--muted);}
  .hero-visual{position:relative;}
  .hero-visual img{
    width:100%;border-radius:var(--radius-xl);object-fit:cover;
    aspect-ratio:5/4;box-shadow:0 22px 48px rgba(13,31,36,.16);
  }
  .float-badge{
    position:absolute;background:var(--white);border:1px solid var(--line);
    border-radius:var(--radius-sm);padding:12px 16px;box-shadow:var(--shadow);
    font-size:13px;color:var(--muted);line-height:1.4;
  }
  .float-badge b{display:block;font-size:19px;color:var(--brand);font-weight:800;}
  .float-badge.one{left:-18px;top:26px;}
  .float-badge.two{right:-14px;bottom:34px;}

  /* ---------- quick jump cards ---------- */
  .quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
  .quick-card{
    background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);
    padding:26px 24px;box-shadow:var(--shadow);
    transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
    display:flex;flex-direction:column;gap:12px;
  }
  .quick-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#C7E8EF;}
  .quick-icon{
    width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
    background:var(--brand-light);color:#0A8C9C;font-size:20px;
  }
  .quick-card h3{font-size:20px;}
  .quick-card p{font-size:15px;color:var(--muted);}
  .quick-tag{
    align-self:flex-start;font-size:12px;font-weight:700;color:#0A8C9C;
    background:var(--brand-light);border-radius:var(--radius-pill);padding:4px 12px;
  }

  /* ---------- faq ---------- */
  .faq-layout{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:start;}
  .faq-aside{
    background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);
    padding:28px;box-shadow:var(--shadow);position:sticky;top:96px;
  }
  .faq-aside h3{font-size:20px;margin-bottom:12px;}
  .faq-aside p{font-size:15px;color:var(--muted);margin-bottom:18px;}
  .faq-aside ul li{
    display:flex;gap:10px;font-size:15px;color:var(--brand-deep);
    padding:9px 0;border-bottom:1px dashed var(--line);
  }
  .faq-aside ul li:last-child{border-bottom:none;}
  .faq-aside ul li::before{
    content:"";flex:0 0 7px;height:7px;margin-top:9px;border-radius:50%;background:var(--grad);
  }
  .faq-group-label{
    font-size:13px;font-weight:700;letter-spacing:1px;color:#0A8C9C;
    text-transform:uppercase;margin:0 0 14px;
  }
  .faq-group + .faq-group{margin-top:38px;}
  .faq-item{
    background:var(--white);border:1px solid var(--line);border-left:3px solid var(--line);
    border-radius:var(--radius-sm);margin-bottom:12px;
    transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
  }
  .faq-item:hover{box-shadow:var(--shadow);}
  .faq-item.open{border-left-color:var(--brand);background:#FBFEFF;box-shadow:var(--shadow);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:18px 22px;text-align:left;font-size:18px;font-weight:700;color:var(--brand-deep);
  }
  .faq-icon{
    flex:0 0 26px;height:26px;border-radius:50%;display:grid;place-items:center;
    background:var(--brand-light);color:#0A8C9C;font-size:17px;font-weight:700;line-height:1;
    transition:transform .25s ease,background .25s ease,color .25s ease;
  }
  .faq-item.open .faq-icon{background:var(--grad);color:#fff;transform:rotate(45deg);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
  .faq-a p{
    padding:0 22px 20px;font-size:16px;color:var(--muted);line-height:1.85;
  }
  .faq-a .faq-inline-link{color:var(--brand);font-weight:600;}
  .faq-a .faq-inline-link:hover{color:var(--accent);}

  /* ---------- steps ---------- */
  .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .step{
    position:relative;background:var(--white);border:1px solid var(--line);
    border-radius:var(--radius-lg);padding:30px 26px;box-shadow:var(--shadow);
  }
  .step-num{
    width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
    background:var(--grad);color:#fff;font-weight:800;font-size:18px;margin-bottom:18px;
    box-shadow:var(--shadow-soft);
  }
  .step h3{font-size:20px;margin-bottom:10px;}
  .step p{font-size:15px;color:var(--muted);}
  .step::after{
    content:"";position:absolute;top:52px;right:-16px;width:32px;height:2px;
    background:linear-gradient(90deg,var(--brand),rgba(94,234,212,0));
  }
  .step:last-child::after{display:none;}

  /* ---------- contact ---------- */
  .contact-wrap{
    display:grid;grid-template-columns:6fr 6fr;gap:40px;align-items:center;
    background:var(--white);border:1px solid var(--line);border-radius:var(--radius-xl);
    padding:44px;box-shadow:var(--shadow);
  }
  .contact-wrap h2{font-size:30px;margin-bottom:14px;}
  .contact-wrap p{color:var(--muted);font-size:16px;margin-bottom:22px;}
  .contact-list{display:grid;gap:14px;margin-bottom:26px;}
  .contact-list li{
    display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--brand-deep);
  }
  .contact-list li span.dot{
    flex:0 0 8px;height:8px;border-radius:50%;background:var(--grad);margin-top:9px;
  }
  .contact-list li em{font-style:normal;color:var(--muted);}
  .contact-wrap img{border-radius:var(--radius-lg);aspect-ratio:4/3;object-fit:cover;width:100%;}

  /* ---------- cta ---------- */
  .cta-band{
    position:relative;overflow:hidden;
    background:var(--brand-deep);color:#fff;
    border-radius:var(--radius-xl);padding:56px 48px;
    display:grid;grid-template-columns:8fr 4fr;gap:32px;align-items:center;
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background:radial-gradient(420px 220px at 88% 20%,rgba(94,234,212,.22),transparent 65%),
               radial-gradient(320px 200px at 6% 92%,rgba(255,122,26,.18),transparent 68%);
  }
  .cta-band > *{position:relative;z-index:1;}
  .cta-band h2{color:#fff;font-size:30px;margin-bottom:12px;}
  .cta-band p{color:rgba(255,255,255,.76);font-size:16px;}
  .cta-actions{display:flex;flex-direction:column;gap:12px;}
  .cta-actions .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.34);}
  .cta-actions .btn-ghost:hover{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.6);}

  /* ---------- footer ---------- */
  .site-footer{
    background:var(--brand-deep);color:rgba(255,255,255,.72);
    margin-top:96px;padding:64px 0 28px;
    border-top:1px solid rgba(94,234,212,.22);
    background-image:
      linear-gradient(rgba(94,234,212,.10),rgba(94,234,212,.10)),
      radial-gradient(560px 260px at 88% 0%,rgba(15,181,201,.20),transparent 70%);
    background-size:100% 1px,auto;
    background-repeat:no-repeat,no-repeat;
    background-position:top left,top right;
  }
  .footer-grid{
    display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;
  }
  .footer-brand .logo{color:#fff;margin-bottom:16px;}
  .footer-brand p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.66);max-width:320px;}
  .footer-col h4{color:#fff;font-size:16px;margin-bottom:16px;}
  .footer-col ul li{margin-bottom:10px;}
  .footer-col ul li a{font-size:15px;color:rgba(255,255,255,.72);transition:color .2s ease;}
  .footer-col ul li a:hover{color:var(--accent);}
  .footer-note{font-size:15px;line-height:1.85;color:rgba(255,255,255,.66);}
  .footer-bottom{
    margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
    display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
    font-size:14px;color:rgba(255,255,255,.55);
  }

  /* ---------- sticky bar ---------- */
  .sticky-bar{
    position:fixed;left:0;right:0;bottom:0;z-index:70;
    background:rgba(255,255,255,.96);
    border-top:1px solid var(--line);
    box-shadow:0 -8px 26px rgba(13,31,36,.08);
  }
  .sticky-inner{
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:12px 24px;max-width:1240px;margin:0 auto;
  }
  .sticky-text{font-size:15px;color:var(--brand-deep);font-weight:600;}
  .sticky-text span{color:var(--muted);font-weight:400;margin-left:8px;font-size:14px;}
  .sticky-actions{display:flex;gap:12px;align-items:center;}
  .sticky-actions .btn{padding:11px 22px;font-size:15px;}

  /* ---------- responsive ---------- */
  @media (max-width:1024px){
    :root{--section:72px;}
    .nav-links{display:none;}
    .nav-cta{display:none;}
    .menu-toggle{display:grid;}
    .header-inner{height:64px;}
    .hero-grid{grid-template-columns:1fr;gap:36px;}
    .hero{padding:20px 0 64px;}
    .hero h1{font-size:38px;}
    .hero-visual img{aspect-ratio:16/10;}
    .float-badge.one{left:10px;top:14px;}
    .float-badge.two{right:10px;bottom:14px;}
    .quick-grid{grid-template-columns:repeat(2,1fr);}
    .faq-layout{grid-template-columns:1fr;gap:30px;}
    .faq-aside{position:static;}
    .steps{grid-template-columns:1fr;gap:18px;}
    .step::after{display:none;}
    .contact-wrap{grid-template-columns:1fr;padding:32px;}
    .cta-band{grid-template-columns:1fr;padding:40px 32px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  }
  @media (max-width:640px){
    :root{--section:56px;}
    html body{font-size:16px;padding-bottom:132px;}
    .container{padding:0 16px;}
    .hero h1{font-size:31px;letter-spacing:-.4px;}
    .hero-lead{font-size:16px;}
    h2.section-title{font-size:26px;}
    .quick-grid{grid-template-columns:1fr;}
    .hero-stats{gap:10px;}
    .stat-chip{flex:1 1 44%;min-width:0;padding:11px 14px;}
    .stat-chip b{font-size:21px;}
    .faq-q{font-size:16.5px;padding:16px 16px;}
    .faq-a p{padding:0 16px 18px;font-size:15px;}
    .cta-band h2{font-size:24px;}
    .footer-grid{grid-template-columns:1fr;}
    .footer-bottom{flex-direction:column;gap:8px;}
    .sticky-inner{flex-direction:column;align-items:stretch;gap:10px;padding:12px 16px;}
    .sticky-text{text-align:center;font-size:14px;}
    .sticky-text span{display:block;margin:4px 0 0;}
    .sticky-actions{width:100%;}
    .sticky-actions .btn{flex:1;min-height:46px;}
  }