/* roulang page: index */
:root{
  --c-bg:#0D0F14;
  --c-surface:#151821;
  --c-surface-2:#1C2029;
  --c-line:#272C38;
  --c-line-hover:#3A4152;
  --c-primary:#00D9A3;
  --c-secondary:#6C4BFF;
  --c-accent:#FF6A2B;
  --c-accent-ink:#0B0C10;
  --c-text:#F2F5F8;
  --c-text-2:#A6AEBD;
  --c-text-3:#6C7484;
  --c-success:#2BD98B;
  --c-warn:#FFB020;
  --c-error:#FF5A5F;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --shadow-card:0 8px 24px rgba(0,0,0,.45);
  --side-w:232px;
  --side-w-mini:72px;
  --font-cn:"PingFang SC","HarmonyOS Sans","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{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-text);text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease;}
a:hover{color:var(--c-primary);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.2px;}
p{margin:0 0 1em;color:var(--c-text-2);}
ul{margin:0;padding:0;list-style:none;}

/* ============ 布局骨架 ============ */
.app-shell{min-height:100vh;}
.app-sidebar{
  position:fixed;top:0;left:0;width:var(--side-w);height:100vh;
  background:var(--c-surface);
  border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;
  overflow-y:auto;overflow-x:hidden;
  z-index:1040;
}
.side-logo{
  height:72px;flex:0 0 72px;display:flex;align-items:center;gap:10px;
  padding:0 18px;border-bottom:1px solid var(--c-line);
}
.logo-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:9px;
  background:linear-gradient(135deg,rgba(0,217,163,.22),rgba(108,75,255,.16));
  border:1px solid rgba(0,217,163,.45);
  display:grid;grid-template-columns:repeat(2,1fr);grid-template-rows:repeat(2,1fr);
  gap:3px;padding:6px;
}
.logo-mark i{display:block;background:var(--c-primary);border-radius:2px;}
.logo-mark i:nth-child(2){opacity:.45;}
.logo-mark i:nth-child(3){opacity:.45;}
.logo-mark i:nth-child(4){background:var(--c-accent);}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-text b{font-size:15px;font-weight:800;letter-spacing:.3px;white-space:nowrap;}
.logo-text span{font-size:11px;color:var(--c-text-3);letter-spacing:1px;}
.side-body{padding:16px 12px 24px;flex:1 1 auto;}
.side-group{margin-bottom:22px;}
.side-title{
  font-size:12px;color:var(--c-text-3);letter-spacing:1.4px;
  padding:0 10px;margin-bottom:8px;text-transform:uppercase;
}
.side-link{
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:10px;
  color:var(--c-text-2);font-size:14.5px;
  border-left:3px solid transparent;
  white-space:nowrap;
}
.side-link .ic{
  width:20px;height:20px;flex:0 0 20px;border-radius:6px;
  background:var(--c-surface-2);border:1px solid var(--c-line);
  display:grid;place-items:center;font-size:11px;color:var(--c-primary);
}
.side-link:hover{background:var(--c-surface-2);border-left-color:var(--c-primary);color:var(--c-text);}
.side-link.active{background:var(--c-surface-2);border-left-color:var(--c-primary);color:#fff;}
.side-link.active .ic{border-color:rgba(0,217,163,.5);}
.side-foot{
  border-top:1px solid var(--c-line);padding:14px 18px 20px;
  font-size:12.5px;color:var(--c-text-3);line-height:1.7;
}
.side-foot strong{display:block;color:var(--c-text-2);font-size:13px;font-weight:600;margin-bottom:4px;}

.app-main{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column;}
.page-wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 24px;}
.section{padding:80px 0;}
.section-head{margin-bottom:36px;max-width:760px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:1.6px;color:var(--c-primary);
  border:1px solid rgba(0,217,163,.3);background:rgba(0,217,163,.06);
  border-radius:999px;padding:5px 12px;margin-bottom:16px;
}
.section-head h2{font-size:28px;font-weight:700;margin-bottom:12px;}
.section-head p{font-size:15px;margin:0;max-width:640px;}
.h2-bar{position:relative;padding-left:14px;}
.h2-bar::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:3px;
  background:var(--c-primary);border-radius:2px;
}

/* ============ 顶部移动栏与抽屉 ============ */
.mobile-topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:1050;
  background:rgba(13,15,20,.94);border-bottom:1px solid var(--c-line);
  align-items:center;justify-content:space-between;padding:0 16px;
}
.burger{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);
  background:var(--c-surface);display:grid;place-items:center;gap:4px;
  cursor:pointer;padding:0;
}
.burger span{display:block;width:16px;height:2px;background:var(--c-text-2);border-radius:2px;}
.mobile-brand{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:700;}
.topbar-cta{
  font-size:13px;padding:8px 14px;border-radius:var(--r-btn);
  background:var(--c-accent);color:var(--c-accent-ink);font-weight:700;
}
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.65);z-index:1055;
  opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;
}
.drawer{
  position:fixed;top:0;left:0;width:280px;height:100%;z-index:1060;
  background:var(--c-surface);border-right:1px solid var(--c-line);
  transform:translateX(-102%);transition:transform .22s ease;
  display:flex;flex-direction:column;overflow-y:auto;
}
body.drawer-open .drawer{transform:translateX(0);}
body.drawer-open .drawer-mask{opacity:1;visibility:visible;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--c-line);
  padding:72px 0 64px;
  background:
    repeating-linear-gradient(0deg,rgba(255,255,255,.028) 0 1px,transparent 1px 40px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.028) 0 1px,transparent 1px 40px),
    radial-gradient(900px 420px at 85% -10%,rgba(0,217,163,.10),transparent 62%),
    var(--c-bg);
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
.hero h1{
  font-size:40px;line-height:1.22;font-weight:800;letter-spacing:.4px;
  margin:14px 0 18px;
}
.hero h1 em{font-style:normal;color:var(--c-primary);}
.hero-sub{font-size:16.5px;color:var(--c-text-2);max-width:44ch;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.btn-cta{
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  background:var(--c-accent);color:var(--c-accent-ink);
  font-weight:700;font-size:15px;border:1px solid var(--c-accent);
  transition:transform .16s ease,box-shadow .16s ease,background-color .16s ease;
}
.btn-cta:hover{color:var(--c-accent-ink);transform:translateY(-2px);box-shadow:0 10px 22px rgba(255,106,43,.28);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  background:transparent;color:var(--c-primary);
  border:1px solid rgba(0,217,163,.55);font-weight:600;font-size:15px;
  transition:background-color .16s ease,border-color .16s ease,transform .16s ease;
}
.btn-ghost:hover{background:rgba(0,217,163,.08);border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px);}
.btn-line{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-weight:600;font-size:14.5px;
  border-bottom:1px solid rgba(0,217,163,.4);padding-bottom:2px;
}
.btn-line:hover{color:var(--c-accent);border-color:var(--c-accent);}
.trust-row{display:flex;flex-wrap:wrap;gap:20px;font-size:13.5px;color:var(--c-text-3);}
.trust-row span{display:inline-flex;align-items:center;gap:7px;}
.trust-row span::before{
  content:"";width:6px;height:6px;border-radius:2px;background:var(--c-primary);
}
.hero-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--c-line);box-shadow:var(--shadow-card);
  aspect-ratio:16/10;
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;top:0;right:0;width:76px;height:76px;
  background:linear-gradient(225deg,var(--c-secondary) 0 50%,transparent 50%);
  opacity:.5;
}
.hero-badge{
  position:absolute;left:14px;bottom:14px;
  background:rgba(13,15,20,.86);border:1px solid var(--c-line);
  border-radius:var(--r-badge);padding:6px 11px;font-size:12px;letter-spacing:.5px;
  color:var(--c-text-2);
}

/* ============ 数据条 ============ */
.stat-bar{border-bottom:1px solid var(--c-line);background:var(--c-surface);}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat-item{padding:26px 24px;border-right:1px solid var(--c-line);}
.stat-item:last-child{border-right:0;}
.stat-num{
  font-size:30px;font-weight:800;color:var(--c-primary);
  font-variant-numeric:tabular-nums;letter-spacing:.5px;line-height:1.2;
}
.stat-num small{font-size:14px;font-weight:600;color:var(--c-text-2);margin-left:4px;}
.stat-item p{font-size:13px;color:var(--c-text-3);margin:6px 0 0;}

/* ============ 价值主张 ============ */
.value-grid{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
.value-list{border-top:1px solid var(--c-line);}
.value-item{
  display:flex;gap:16px;padding:22px 4px;border-bottom:1px solid var(--c-line);
}
.value-item:hover .value-ic{background:rgba(0,217,163,.12);border-color:rgba(0,217,163,.5);}
.value-ic{
  width:40px;height:40px;flex:0 0 40px;border-radius:10px;
  background:var(--c-surface-2);border:1px solid var(--c-line);
  display:grid;place-items:center;color:var(--c-primary);font-size:13px;font-weight:700;
  transition:background-color .18s ease,border-color .18s ease;
}
.value-item h3{font-size:17px;margin-bottom:6px;}
.value-item p{font-size:14.5px;margin:0;}

/* ============ 功能矩阵 ============ */
.cap-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:20px;}
.cap-card{
  grid-column:span 4;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;display:flex;flex-direction:column;gap:12px;
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.cap-card:hover{transform:translateY(-2px);border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(0,217,163,.14);}
.cap-card.main{grid-column:span 6;background:linear-gradient(180deg,rgba(0,217,163,.07),transparent 58%),var(--c-surface);}
.cap-card.sub{grid-column:span 3;position:relative;overflow:hidden;}
.cap-card.sub::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:var(--c-primary);}
.cap-ic{
  width:40px;height:40px;border-radius:10px;background:var(--c-surface-2);
  border:1px solid var(--c-line);display:grid;place-items:center;
  color:var(--c-primary);font-size:13px;font-weight:700;
}
.cap-card h3{font-size:18px;}
.cap-card p{font-size:14.5px;margin:0;}
.cap-more{margin-top:auto;font-size:14px;color:var(--c-primary);font-weight:600;display:inline-flex;gap:6px;align-items:center;}
.cap-card:hover .cap-more{color:var(--c-accent);}

/* ============ 使用场景 ============ */
.scene{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;padding:34px 0;}
.scene + .scene{border-top:1px solid var(--c-line);}
.scene.rev .scene-media{order:2;}
.scene-media{
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);
  aspect-ratio:4/3;box-shadow:var(--shadow-card);
}
.scene-media img{width:100%;height:100%;object-fit:cover;}
.scene h3{font-size:22px;margin-bottom:10px;}
.scene-who{font-size:13px;color:var(--c-text-3);margin-bottom:16px;letter-spacing:.4px;}
.scene ul{margin-bottom:20px;}
.scene li{
  position:relative;padding-left:22px;font-size:14.5px;color:var(--c-text-2);margin-bottom:10px;
}
.scene li::before{
  content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;
  border-radius:2px;background:rgba(0,217,163,.85);
}

/* ============ 案例 ============ */
.case-grid{display:grid;grid-template-columns:7fr 5fr;gap:20px;}
.case-main{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;display:flex;flex-direction:column;gap:18px;
}
.case-main h3{font-size:22px;}
.case-metrics{display:grid;gap:14px;border-top:1px solid var(--c-line);padding-top:18px;}
.metric{display:flex;justify-content:space-between;align-items:baseline;gap:16px;}
.metric b{font-size:24px;color:var(--c-primary);font-variant-numeric:tabular-nums;}
.metric span{font-size:13.5px;color:var(--c-text-3);}
.case-side{display:grid;gap:20px;}
.case-mini{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px;transition:transform .18s ease,border-color .18s ease;
}
.case-mini:hover{transform:translateY(-2px);border-color:var(--c-line-hover);}
.case-mini h4{font-size:16px;margin-bottom:8px;}
.case-mini p{font-size:14px;margin:0;}
.badge-tag{
  display:inline-flex;align-items:center;
  font-size:12px;letter-spacing:.5px;padding:4px 10px;border-radius:var(--r-badge);
  background:rgba(0,217,163,.12);color:var(--c-primary);border:1px solid rgba(0,217,163,.3);
  margin-bottom:12px;
}
.badge-tag.alt{background:rgba(108,75,255,.14);color:#B9A8FF;border-color:rgba(108,75,255,.4);}
.badge-tag.warm{background:rgba(255,106,43,.14);color:#FFA97C;border-color:rgba(255,106,43,.4);}

/* ============ 套餐 ============ */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch;}
.plan-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px 24px;transition:transform .18s ease,border-color .18s ease;
}
.plan-card:hover{transform:translateY(-2px);border-color:var(--c-line-hover);}
.plan-card.featured{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(0,217,163,.12);}
.plan-card.featured::before{
  content:"";position:absolute;right:0;top:0;width:64px;height:64px;
  background:linear-gradient(225deg,rgba(108,75,255,.55) 0 50%,transparent 50%);
}
.plan-flag{
  position:absolute;top:-12px;left:24px;
  background:var(--c-accent);color:var(--c-accent-ink);
  font-size:12px;font-weight:700;letter-spacing:.5px;
  padding:4px 12px;border-radius:999px;
}
.plan-name{font-size:17px;font-weight:700;margin-bottom:6px;}
.plan-desc{font-size:13.5px;color:var(--c-text-3);margin-bottom:16px;}
.plan-price{font-size:30px;font-weight:800;color:var(--c-text);line-height:1.2;margin-bottom:4px;}
.plan-price span{font-size:14px;font-weight:500;color:var(--c-text-3);}
.plan-copy{font-size:13px;color:var(--c-text-3);margin-bottom:20px;}
.plan-feats{flex:1 1 auto;border-top:1px solid var(--c-line);padding-top:18px;margin-bottom:22px;}
.plan-feats li{
  position:relative;padding-left:24px;font-size:14.5px;color:var(--c-text-2);margin-bottom:11px;
}
.plan-feats li::before{
  content:"✓";position:absolute;left:0;top:0;color:var(--c-primary);font-size:13px;font-weight:700;
}
.plan-btn{
  display:block;text-align:center;height:46px;line-height:44px;border-radius:var(--r-btn);
  border:1px solid rgba(0,217,163,.55);color:var(--c-primary);font-weight:700;font-size:14.5px;
}
.plan-btn:hover{background:rgba(0,217,163,.1);color:var(--c-primary);}
.plan-btn.solid{background:var(--c-accent);border-color:var(--c-accent);color:var(--c-accent-ink);}
.plan-btn.solid:hover{background:#ff7d45;color:var(--c-accent-ink);}
.plan-note{
  margin-top:22px;font-size:14px;color:var(--c-text-3);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;
}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.news-card{
  display:flex;flex-direction:column;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.news-card:hover{transform:translateY(-2px);border-color:var(--c-primary);box-shadow:var(--shadow-card);}
.news-cover{aspect-ratio:16/10;overflow:hidden;background:var(--c-surface-2);}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease;}
.news-card:hover .news-cover img{transform:scale(1.03);}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.news-body h3{
  font-size:16.5px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover h3{color:var(--c-primary);}
.news-body p{
  font-size:14px;margin:0;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--c-line);
  display:flex;justify-content:space-between;gap:10px;font-size:12.5px;color:var(--c-text-3);
}
.news-empty{
  grid-column:1/-1;border:1px dashed var(--c-line);border-radius:var(--r-card);
  padding:52px 24px;text-align:center;background:var(--c-surface);
}
.news-empty .dot{
  width:56px;height:56px;margin:0 auto 16px;border-radius:16px;
  background:var(--c-surface-2);border:1px solid var(--c-line);
  display:grid;place-items:center;color:var(--c-primary);font-size:18px;font-weight:700;
}
.news-empty p{font-size:14.5px;margin-bottom:12px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:800px;margin:0 auto;}
.accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--c-line);
}
.accordion-button{
  background:transparent;color:var(--c-text);font-size:16px;font-weight:600;
  padding:20px 44px 20px 14px;box-shadow:none;border-left:2px solid transparent;
  line-height:1.6;
}
.accordion-button:not(.collapsed){
  color:var(--c-primary);background:transparent;box-shadow:none;border-left-color:var(--c-primary);
}
.accordion-button:focus{box-shadow:none;border-color:var(--c-primary);}
.accordion-button::after{
  background-image:none;content:"+";font-size:20px;line-height:1;color:var(--c-primary);
  display:grid;place-items:center;height:22px;width:22px;transform:none;
  background:rgba(0,217,163,.1);border-radius:6px;border:1px solid rgba(0,217,163,.35);
  transition:transform .2s ease;
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.accordion-body{padding:0 24px 22px 14px;color:var(--c-text-2);font-size:14.8px;}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
  padding:64px 0;
  background:
    repeating-linear-gradient(90deg,rgba(255,255,255,.03) 0 1px,transparent 1px 36px),
    linear-gradient(180deg,rgba(0,217,163,.08),rgba(0,217,163,.02));
}
.cta-inner{display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;}
.cta-inner h2{font-size:26px;margin-bottom:8px;}
.cta-inner p{margin:0;font-size:15px;max-width:60ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 表单 ============ */
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.form-field{display:flex;flex-direction:column;gap:8px;}
.form-field.full{grid-column:1/-1;}
.form-field label{font-size:14px;color:var(--c-text-2);}
.form-control,.form-select{
  height:44px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-btn);color:var(--c-text);padding:0 14px;font-size:14.5px;
}
textarea.form-control{height:auto;padding:12px 14px;min-height:112px;resize:vertical;}
.form-control:focus,.form-select:focus{
  background:var(--c-surface);border-color:var(--c-primary);color:var(--c-text);
  box-shadow:0 0 0 3px rgba(0,217,163,.16);
}
.form-control::placeholder{color:var(--c-text-3);}
.form-hint{font-size:12px;color:var(--c-text-3);}
.form-ok{
  background:rgba(43,217,139,.12);border:1px solid rgba(43,217,139,.4);
  color:var(--c-success);font-size:13px;padding:10px 14px;border-radius:var(--r-btn);
}

/* ============ 页脚 ============ */
.site-footer{border-top:1px solid var(--c-line);background:var(--c-surface);padding:56px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-col h4{font-size:14px;margin-bottom:16px;color:var(--c-text);letter-spacing:.4px;}
.footer-col p{font-size:13.5px;color:var(--c-text-3);margin:0;}
.footer-col li{margin-bottom:10px;}
.footer-col li a{font-size:14px;color:var(--c-text-2);}
.footer-col li a:hover{color:var(--c-primary);}
.footer-bottom{
  border-top:1px solid var(--c-line);padding:18px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:12.8px;color:var(--c-text-3);
}
.to-top{
  display:inline-flex;align-items:center;gap:6px;color:var(--c-text-2);
  border:1px solid var(--c-line);border-radius:var(--r-btn);padding:6px 12px;font-size:12.5px;
}
.to-top:hover{border-color:var(--c-primary);color:var(--c-primary);}

/* ============ 响应式 ============ */
@media (max-width:1399.98px){
  .page-wrap{max-width:1180px;}
}
@media (max-width:1199.98px){
  :root{--side-w:var(--side-w-mini);}
  .side-logo{justify-content:center;padding:0;}
  .logo-text{display:none;}
  .side-title{display:none;}
  .side-link{justify-content:center;padding:0;font-size:0;gap:0;}
  .side-link .ic{width:26px;height:26px;flex:0 0 26px;font-size:11px;}
  .side-foot{display:none;}
  .side-body{padding:14px 8px;}
  .hero-grid{gap:32px;}
  .value-grid{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:991.98px){
  .app-sidebar{display:none;}
  .mobile-topbar{display:flex;}
  .app-main{margin-left:0;padding-top:56px;}
  .hero{padding:48px 0;}
  .section{padding:48px 0;}
  .hero-grid{grid-template-columns:1fr;gap:28px;}
  .hero h1{font-size:30px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .stat-item:nth-child(2){border-right:0;}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--c-line);}
  .cap-card,.cap-card.main,.cap-card.sub{grid-column:span 6;}
  .scene{grid-template-columns:1fr;gap:24px;padding:28px 0;}
  .scene.rev .scene-media{order:0;}
  .case-grid{grid-template-columns:1fr;}
  .plan-grid{grid-template-columns:1fr;}
  .plan-card.featured{order:-1;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:767.98px){
  .page-wrap{padding:0 16px;}
  .hero h1{font-size:26px;}
  .section-head h2{font-size:22px;}
  .stat-grid{grid-template-columns:1fr;}
  .stat-item{border-right:0;border-bottom:1px solid var(--c-line);}
  .cap-card,.cap-card.main,.cap-card.sub{grid-column:span 12;}
  .news-grid{grid-template-columns:1fr;}
  .cta-inner h2{font-size:21px;}
  .form-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
}
@media (max-width:575.98px){
  body{font-size:15px;}
  .hero{padding:36px 0;}
  .hero h1{font-size:23px;}
  .hero-actions{gap:10px;}
  .btn-cta,.btn-ghost{height:44px;padding:0 18px;font-size:14px;width:100%;justify-content:center;}
  .stat-num{font-size:26px;}
  .plan-price{font-size:26px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --c-bg:#0D0F14;
  --c-surface:#151821;
  --c-surface-2:#1C2029;
  --c-line:#272C38;
  --c-line-hi:#3A4152;
  --c-primary:#00D9A3;
  --c-secondary:#6C4BFF;
  --c-accent:#FF6A2B;
  --c-text:#F2F5F8;
  --c-text-2:#A6AEBD;
  --c-text-3:#6C7484;
  --c-ok:#2BD98B;
  --c-warn:#FFB020;
  --c-err:#FF5A5F;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --sh-card:0 8px 24px rgba(0,0,0,.45);
  --side-w:232px;
  --bs-body-bg:#0D0F14;
  --bs-body-color:#F2F5F8;
  --bs-primary:#00D9A3;
  --bs-link-color:#00D9A3;
  --bs-link-hover-color:#FF6A2B;
  --bs-border-color:#272C38;
  --bs-border-radius:10px;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,border-color .18s ease,background .18s ease;}
a:hover{color:var(--c-accent);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(0,217,163,.28);}

/* ---------- 容器与骨架 ---------- */
.page-wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 24px;}
.site-main{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column;}

/* ---------- 左侧导航 ---------- */
.side-nav{
  position:fixed;left:0;top:0;bottom:0;width:var(--side-w);
  background:var(--c-surface);
  border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;
  overflow-y:auto;overflow-x:hidden;
  z-index:1030;
}
.side-nav::-webkit-scrollbar{width:6px;}
.side-nav::-webkit-scrollbar-thumb{background:#2b3140;border-radius:3px;}
.side-logo{
  flex:0 0 72px;height:72px;display:flex;align-items:center;gap:10px;
  padding:0 18px;border-bottom:1px solid var(--c-line);
}
.logo-mark{display:inline-grid;grid-template-columns:1fr 1fr;gap:3px;width:30px;height:30px;flex:0 0 30px;}
.logo-mark i{display:block;background:var(--c-primary);border-radius:2px;}
.logo-mark i:nth-child(2){opacity:.5;}
.logo-mark i:nth-child(3){opacity:.5;}
.logo-mark i:nth-child(4){background:var(--c-secondary);}
.logo-text b{display:block;font-size:15px;font-weight:800;color:#fff;letter-spacing:.4px;line-height:1.2;}
.logo-text span{display:block;font-size:11px;color:var(--c-text-3);letter-spacing:2.4px;}
.side-group{padding:16px 12px 4px;}
.side-title{font-size:12px;color:var(--c-text-3);letter-spacing:1.4px;padding:0 8px 8px;}
.side-link{
  display:flex;align-items:center;gap:10px;height:44px;padding:0 10px;
  border-radius:var(--r-btn);color:var(--c-text-2);font-size:14.5px;
  position:relative;transition:background .18s ease,color .18s ease;
}
.side-link::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:2px;background:transparent;transition:background .18s ease;
}
.side-link .ic{
  width:24px;height:24px;flex:0 0 24px;display:grid;place-items:center;
  border-radius:7px;background:var(--c-surface-2);font-size:12px;color:var(--c-text-2);
}
.side-link:hover{background:var(--c-surface-2);color:#fff;}
.side-link:hover .ic{color:var(--c-primary);}
.side-link:hover::before{background:var(--c-primary);}
.side-link.active{background:var(--c-surface-2);color:#fff;}
.side-link.active::before{background:var(--c-primary);}
.side-foot{
  margin-top:auto;padding:18px;border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-3);line-height:1.8;
}
.side-foot b{display:block;color:var(--c-text-2);font-size:13px;margin-bottom:4px;}

/* ---------- 移动端顶栏与抽屉 ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:1040;
  background:#12151D;border-bottom:1px solid var(--c-line);
  align-items:center;gap:12px;padding:0 16px;
}
.hamburger{
  width:40px;height:40px;flex:0 0 40px;border-radius:var(--r-btn);
  border:1px solid var(--c-line);display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:4px;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--c-text-2);border-radius:2px;}
.hamburger:hover span{background:var(--c-primary);}
.topbar-brand{display:flex;align-items:center;gap:8px;color:#fff;font-weight:800;font-size:15px;}
.topbar-cta{
  margin-left:auto;height:36px;padding:0 14px;display:inline-flex;align-items:center;
  border-radius:var(--r-btn);background:var(--c-accent);color:#0B0C10;
  font-size:13px;font-weight:700;
}
.topbar-cta:hover{background:#ff7f47;color:#0B0C10;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.65);
  opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;z-index:1050;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;left:0;top:0;bottom:0;width:280px;max-width:82vw;
  background:var(--c-surface);border-right:1px solid var(--c-line);
  transform:translateX(-100%);transition:transform .22s ease;z-index:1060;
  overflow-y:auto;padding-bottom:24px;
}
.drawer.open{transform:translateX(0);}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-text-3);padding:36px 0 20px;
}
.crumb a{color:var(--c-text-3);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#3A4152;}
.crumb .cur{color:var(--c-text-2);max-width:44ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头部 ---------- */
.article-head{padding-bottom:24px;border-bottom:1px solid var(--c-line);}
.article-head .bar{width:48px;height:4px;border-radius:2px;background:var(--c-primary);margin-bottom:18px;}
.article-head h1{
  font-size:38px;line-height:1.38;font-weight:800;letter-spacing:-.2px;
  max-width:26em;overflow-wrap:break-word;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:16px;font-size:13px;color:var(--c-text-3);
}
.badge-cat{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-badge);font-size:12px;letter-spacing:.5px;
  background:rgba(0,217,163,.12);border:1px solid rgba(0,217,163,.32);color:var(--c-primary);
}
.meta-dot{color:#3A4152;}

/* ---------- 正文布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;
  gap:44px;align-items:start;padding:40px 0 8px;
}
.article-col{min-width:0;max-width:820px;}
.article-body{
  font-size:17px;line-height:1.9;color:#DEE4EB;overflow-wrap:break-word;
}
.article-body p{margin:0 0 1.4em;}
.article-body h2{
  font-size:20px;line-height:1.5;font-weight:700;color:#fff;
  margin:2.2em 0 .9em;padding-left:12px;border-left:3px solid var(--c-primary);
}
.article-body h3{font-size:17px;font-weight:600;color:#fff;margin:1.8em 0 .7em;}
.article-body h4{font-size:16px;font-weight:600;color:var(--c-text);margin:1.5em 0 .6em;}
.article-body blockquote{
  margin:1.6em 0;padding:14px 18px;border-left:3px solid var(--c-primary);
  background:var(--c-surface);border-radius:0 var(--r-img) var(--r-img) 0;color:var(--c-text-2);
}
.article-body ul,.article-body ol{margin:1.2em 0;padding-left:1.5em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:.5em 0;}
.article-body li::marker{color:var(--c-primary);}
.article-body img{border-radius:var(--r-img);margin:1.8em auto;max-width:100%;height:auto;}
.article-body figure{margin:1.8em 0;}
.article-body figcaption{font-size:13px;color:var(--c-text-3);text-align:center;margin-top:10px;}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--c-accent);}
.article-body strong{color:#fff;font-weight:700;}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:2.4em 0;}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9em;
  background:var(--c-surface-2);padding:2px 6px;border-radius:6px;color:var(--c-primary);
}
.article-body pre{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-img);
  padding:16px 18px;overflow-x:auto;margin:1.6em 0;font-size:14px;line-height:1.7;
}
.article-body pre code{background:none;padding:0;color:var(--c-text-2);}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.8em 0;font-size:15px;
  border:1px solid var(--c-line);border-radius:var(--r-img);overflow:hidden;
}
.article-body th{background:var(--c-surface-2);color:#fff;text-align:left;font-weight:600;}
.article-body th,.article-body td{padding:10px 14px;border-bottom:1px solid var(--c-line);}
.article-body tr:last-child td{border-bottom:0;}

/* ---------- 翻页双卡 ---------- */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:44px 0 0;}
.pager a{
  display:block;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:18px 20px;color:var(--c-text);
  transition:transform .16s ease,border-color .16s ease,box-shadow .16s ease;
}
.pager a:hover{transform:translateY(-2px);border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(0,217,163,.18);}
.pager .k{display:block;font-size:12px;color:var(--c-text-3);letter-spacing:1px;}
.pager .t{display:block;font-size:15px;font-weight:600;color:#fff;margin-top:6px;}

/* ---------- 相关推荐 ---------- */
.rel-block{padding:56px 0 8px;}
.block-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;}
.block-head h2{font-size:24px;font-weight:700;color:#fff;display:flex;align-items:center;gap:10px;}
.block-head h2::before{content:"";width:4px;height:20px;border-radius:2px;background:var(--c-primary);display:block;}
.block-head .more{font-size:13.5px;color:var(--c-text-2);}
.block-head .more:hover{color:var(--c-primary);}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.rcard{
  display:flex;flex-direction:column;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  transition:transform .16s ease,border-color .16s ease,box-shadow .16s ease;
}
.rcard:hover{transform:translateY(-2px);border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(0,217,163,.18);}
.rcard .thumb{aspect-ratio:16/10;background:var(--c-surface-2);overflow:hidden;}
.rcard .thumb img{width:100%;height:100%;object-fit:cover;}
.rcard .body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;}
.rcard .badge-cat{align-self:flex-start;}
.rcard h3{font-size:16px;font-weight:600;color:#fff;line-height:1.55;}
.rcard:hover h3{color:var(--c-primary);}
.rcard .sum{font-size:13.5px;color:var(--c-text-3);line-height:1.7;}
.rcard .meta{font-size:12.5px;color:var(--c-text-3);display:flex;align-items:center;gap:8px;margin-top:auto;}
.clamp2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.clamp3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}

/* ---------- 侧栏 ---------- */
.article-side{
  position:sticky;top:88px;display:flex;flex-direction:column;gap:20px;min-width:0;
}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-card);
}
.side-card h3{
  font-size:15px;font-weight:700;color:#fff;margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.side-card h3::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--c-primary);display:block;}
.cat-list li+li{margin-top:6px;}
.cat-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  height:42px;padding:0 12px;border-radius:var(--r-btn);
  color:var(--c-text-2);font-size:14px;
  transition:background .18s ease,color .18s ease,box-shadow .18s ease;
}
.cat-list a:hover{background:var(--c-surface-2);color:#fff;box-shadow:inset 3px 0 0 var(--c-primary);}
.cat-list .arrow{font-size:13px;color:var(--c-text-3);}
.rec-list li+li{margin-top:14px;padding-top:14px;border-top:1px solid var(--c-line);}
.rec-list a{display:block;color:var(--c-text-2);font-size:14px;line-height:1.65;}
.rec-list a:hover{color:var(--c-primary);}
.rec-list .time{display:block;font-size:12px;color:var(--c-text-3);margin-top:6px;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;}
.tag-cloud a{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:999px;background:var(--c-surface-2);border:1px solid var(--c-line);
  color:var(--c-text-2);font-size:12.5px;
}
.tag-cloud a:hover{border-color:var(--c-primary);color:var(--c-primary);}
.side-cta{
  background:rgba(0,217,163,.08);border:1px solid rgba(0,217,163,.28);
  border-radius:var(--r-card);padding:22px;
}
.side-cta h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:8px;}
.side-cta p{font-size:13.5px;color:var(--c-text-2);line-height:1.8;margin-bottom:16px;}

/* ---------- 按钮 ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;white-space:nowrap;
  transition:transform .16s ease,box-shadow .16s ease,background .16s ease,border-color .16s ease,color .16s ease;
}
.btn-primary-x{background:var(--c-accent);color:#0B0C10;}
.btn-primary-x:hover{background:#ff7f47;color:#0B0C10;transform:translateY(-2px);box-shadow:0 10px 22px rgba(255,106,43,.28);}
.btn-ghost-x{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost-x:hover{background:rgba(0,217,163,.10);color:var(--c-primary);transform:translateY(-2px);}
.btn-line-x{background:var(--c-surface-2);border-color:var(--c-line);color:var(--c-text);}
.btn-line-x:hover{border-color:var(--c-line-hi);color:#fff;transform:translateY(-2px);}
.btn-sm-x{height:38px;padding:0 16px;font-size:13.5px;}
.btn-block-x{width:100%;}

/* ---------- 底部 CTA ---------- */
.cta-band{
  margin-top:64px;
  border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
  background-color:rgba(0,217,163,.08);
  background-image:
    repeating-linear-gradient(0deg,rgba(255,255,255,.035) 0 1px,transparent 1px 22px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.035) 0 1px,transparent 1px 22px);
  padding:56px 0;
}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;}
.cta-inner h2{font-size:26px;font-weight:800;color:#fff;margin-bottom:8px;}
.cta-inner p{font-size:14.5px;color:var(--c-text-2);}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 空态 ---------- */
.empty-state{
  border:1px dashed var(--c-line);border-radius:var(--r-card);
  background:var(--c-surface);padding:56px 24px;text-align:center;
}
.empty-state .glyph{
  width:64px;height:64px;margin:0 auto 18px;border-radius:16px;
  background:var(--c-surface-2);border:1px solid var(--c-line);
  display:grid;place-items:center;color:var(--c-primary);font-size:24px;
}
.empty-state h3{font-size:19px;color:#fff;margin-bottom:10px;}
.empty-state p{font-size:14px;color:var(--c-text-3);margin-bottom:22px;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:auto;background:#0A0C11;border-top:1px solid var(--c-line);
  padding:56px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.6px;}
.footer-col p{font-size:13.5px;color:var(--c-text-3);line-height:1.85;}
.footer-col ul li+li{margin-top:10px;}
.footer-col ul a{font-size:13.5px;color:var(--c-text-2);}
.footer-col ul a:hover{color:var(--c-primary);}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  border-top:1px solid var(--c-line);padding:18px 0;font-size:13px;color:var(--c-text-3);
}
.to-top{color:var(--c-text-2);}
.to-top:hover{color:var(--c-primary);}

/* ---------- 响应式 ---------- */
@media (max-width:1399.98px){
  .page-wrap{max-width:1280px;}
}
@media (max-width:1199.98px) and (min-width:992px){
  .side-nav{width:72px;}
  .site-main{margin-left:72px;}
  .side-logo{justify-content:center;padding:0;}
  .logo-text{display:none;}
  .side-title{display:none;}
  .side-link{justify-content:center;padding:0;height:46px;}
  .side-link .lbl{display:none;}
  .side-foot{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr) 290px;gap:32px;}
  .article-head h1{font-size:32px;}
}
@media (max-width:991.98px){
  .side-nav{display:none;}
  .site-main{margin-left:0;padding-top:56px;}
  .topbar{display:flex;}
  .article-layout{grid-template-columns:1fr;gap:32px;padding-top:32px;}
  .article-side{position:static;top:auto;}
  .article-head h1{font-size:28px;}
  .crumb{padding-top:24px;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-inner h2{font-size:22px;}
}
@media (max-width:575.98px){
  .page-wrap{padding:0 16px;}
  .article-head h1{font-size:25px;line-height:1.4;}
  .article-body{font-size:16.5px;line-height:1.85;}
  .pager{grid-template-columns:1fr;}
  .rel-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band{padding:44px 0;}
  .cta-actions{width:100%;}
  .cta-actions .btn-x{flex:1 1 100%;}
  .block-head h2{font-size:20px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.001ms !important;animation-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --c-bg:#0D0F14;
  --c-surface:#151821;
  --c-surface-2:#1C2029;
  --c-line:#272C38;
  --c-line-hover:#3A4152;
  --c-primary:#00D9A3;
  --c-primary-deep:#00B487;
  --c-secondary:#6C4BFF;
  --c-accent:#FF6A2B;
  --c-text:#F2F5F8;
  --c-text-2:#A6AEBD;
  --c-text-3:#6C7484;
  --c-ok:#2BD98B;
  --c-warn:#FFB020;
  --c-err:#FF5A5F;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --sh-card:0 8px 24px rgba(0,0,0,.45);
  --sh-hover:0 8px 24px rgba(0,0,0,.45),0 0 0 3px rgba(0,217,163,.18);
  --sidebar-w:232px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(0,217,163,.28);}

/* ============ 侧边栏 App Shell ============ */
.sidebar{
  position:fixed;top:0;left:0;height:100vh;width:var(--sidebar-w);
  background:var(--c-surface);
  border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;
  z-index:1040;
  overflow:hidden;
  transition:transform .2s ease,width .2s ease;
}
.side-logo{
  height:72px;flex:0 0 auto;
  display:flex;align-items:center;gap:11px;
  padding:0 18px;
  border-bottom:1px solid var(--c-line);
}
.logo-mark{width:28px;height:28px;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:3px;flex:0 0 auto;}
.logo-mark i{display:block;border-radius:3px;background:var(--c-primary);}
.logo-mark i:nth-child(2){background:#00B487;}
.logo-mark i:nth-child(3){background:#009F78;}
.logo-mark i:nth-child(4){background:var(--c-secondary);}
.logo-text{display:flex;flex-direction:column;line-height:1.15;min-width:0;}
.logo-text b{font-size:15px;font-weight:700;letter-spacing:.2px;white-space:nowrap;}
.logo-text span{font-size:11px;color:var(--c-text-3);letter-spacing:2.5px;}
.side-scroll{flex:1 1 auto;overflow-y:auto;padding:16px 12px;}
.side-scroll::-webkit-scrollbar{width:6px;}
.side-scroll::-webkit-scrollbar-thumb{background:#2b3140;border-radius:6px;}
.side-group{margin-bottom:20px;}
.side-title{font-size:12px;color:var(--c-text-3);letter-spacing:1.6px;padding:0 10px 8px;}
.side-link{
  position:relative;
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 10px;
  border-radius:var(--r-btn);
  color:var(--c-text-2);font-size:14.5px;
  transition:background .18s ease,color .18s ease;
}
.side-link::before{
  content:"";position:absolute;left:0;top:11px;bottom:11px;width:3px;border-radius:3px;
  background:transparent;transition:background .18s ease;
}
.side-link:hover{background:var(--c-surface-2);color:var(--c-text);}
.side-link:hover::before{background:var(--c-primary);}
.side-link.active{background:var(--c-surface-2);color:#fff;}
.side-link.active::before{background:var(--c-primary);}
.side-link .ic{
  width:22px;height:22px;flex:0 0 auto;border-radius:6px;
  background:#222836;color:var(--c-primary);
  font-size:12px;display:grid;place-items:center;
}
.side-link.active .ic{background:rgba(0,217,163,.16);}
.side-foot{
  flex:0 0 auto;border-top:1px solid var(--c-line);
  padding:14px 18px;font-size:12.5px;line-height:1.7;color:var(--c-text-3);
}
.side-foot b{display:block;color:var(--c-text-2);font-weight:600;font-size:13px;margin-bottom:2px;}

/* ============ 移动顶栏与抽屉 ============ */
.topbar{
  position:fixed;top:0;left:0;right:0;height:56px;
  display:none;align-items:center;gap:12px;
  padding:0 16px;
  background:var(--c-bg);
  border-bottom:1px solid var(--c-line);
  z-index:1030;
}
.hamburger{
  width:38px;height:38px;flex:0 0 auto;
  display:grid;place-items:center;gap:4px;
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:var(--c-surface);cursor:pointer;padding:0;
}
.hamburger span{display:block;width:16px;height:2px;border-radius:2px;background:var(--c-text-2);}
.topbar-brand{font-size:14.5px;font-weight:700;letter-spacing:.2px;white-space:nowrap;}
.topbar-brand span{color:var(--c-text-3);font-weight:500;font-size:11px;letter-spacing:2px;margin-left:6px;}
.topbar-cta{
  margin-left:auto;height:34px;padding:0 14px;border-radius:var(--r-btn);
  display:inline-flex;align-items:center;font-size:13px;font-weight:600;
  background:var(--c-accent);color:#0B0C10;
}
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.65);
  opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;
  z-index:1035;
}
.drawer-mask.show{opacity:1;visibility:visible;}

/* ============ 主内容骨架 ============ */
main{margin-left:var(--sidebar-w);min-height:100vh;}
.page-wrap{max-width:1280px;margin:0 auto;padding:0 24px;}
.sec{padding:64px 0;}
.sec-head{margin-bottom:30px;max-width:760px;}
.sec-head h2{
  position:relative;font-size:28px;line-height:1.3;font-weight:700;
  padding-left:14px;margin-bottom:10px;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--c-primary);
}
.sec-head p{font-size:14.5px;color:var(--c-text-2);}
.sec-head .sec-more{display:inline-flex;align-items:center;gap:6px;margin-top:10px;font-size:14px;color:var(--c-primary);}
.sec-head .sec-more:hover{color:var(--c-accent);}

/* ============ 页面头图 ============ */
.page-hero{
  position:relative;
  padding:56px 0 48px;
  border-bottom:1px solid var(--c-line);
  background-image:linear-gradient(180deg,rgba(13,15,20,.86),rgba(13,15,20,.97)),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.035) 0 1px,transparent 1px 44px),repeating-linear-gradient(90deg,rgba(255,255,255,.035) 0 1px,transparent 1px 44px);
}
.page-hero .page-wrap{position:relative;z-index:1;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:20px;}
.crumb a{transition:color .18s ease;}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#3A4152;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;
  border-radius:999px;font-size:12.5px;letter-spacing:.5px;
  color:var(--c-primary);
  border:1px solid rgba(0,217,163,.34);
  background:rgba(0,217,163,.08);
}
.page-hero h1{
  font-size:40px;line-height:1.24;font-weight:800;letter-spacing:-.5px;
  margin:16px 0 14px;
}
.page-hero h1 em{font-style:normal;color:var(--c-primary);}
.hero-sub{font-size:16px;color:var(--c-text-2);max-width:680px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13.5px;color:var(--c-text-2);}
.hero-points li{position:relative;padding-left:18px;}
.hero-points li::before{
  content:"";position:absolute;left:0;top:50%;width:8px;height:8px;margin-top:-4px;
  border-radius:2px;background:var(--c-primary);
}

/* ============ 按钮 ============ */
.btn-main,.btn-line,.btn-soft{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
  border:1px solid transparent;
}
.btn-main{background:var(--c-accent);color:#0B0C10;}
.btn-main:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(255,106,43,.28);color:#0B0C10;}
.btn-line{border-color:rgba(0,217,163,.5);color:var(--c-primary);background:transparent;}
.btn-line:hover{background:rgba(0,217,163,.1);border-color:var(--c-primary);transform:translateY(-2px);}
.btn-soft{background:var(--c-surface-2);color:var(--c-text);border-color:var(--c-line);}
.btn-soft:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px);}

/* ============ 标签条 ============ */
.tag-bar{display:flex;flex-wrap:wrap;gap:10px;padding:22px 0 0;}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:999px;font-size:13.5px;
  color:var(--c-text-2);background:var(--c-surface);border:1px solid var(--c-line);
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.tag:hover{border-color:var(--c-line-hover);color:var(--c-text);}
.tag.is-on{background:rgba(0,217,163,.12);border-color:rgba(0,217,163,.4);color:var(--c-primary);font-weight:600;}

/* ============ 资讯宽幅列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.news-card{
  display:flex;gap:18px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:18px;
  box-shadow:var(--sh-card);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.news-card:hover{transform:translateY(-2px);border-color:var(--c-primary);box-shadow:var(--sh-hover);}
.news-thumb{
  width:172px;flex:0 0 172px;aspect-ratio:4/3;
  border-radius:var(--r-img);overflow:hidden;background:#1B1F2A;
}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{min-width:0;display:flex;flex-direction:column;}
.news-body h3{
  font-size:17px;line-height:1.45;font-weight:700;
  margin:10px 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .18s ease;
}
.news-card:hover .news-body h3{color:var(--c-primary);}
.news-body p{
  font-size:13.5px;color:var(--c-text-2);line-height:1.68;
  margin-bottom:12px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.meta{margin-top:auto;display:flex;flex-wrap:wrap;gap:14px;font-size:12.5px;color:var(--c-text-3);}
.meta span{display:inline-flex;align-items:center;gap:6px;}
.meta span::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--c-line-hover);}

/* ============ 徽章 ============ */
.badge-x{
  display:inline-flex;align-items:center;height:22px;padding:0 9px;
  border-radius:var(--r-badge);font-size:12px;letter-spacing:.5px;
  background:rgba(0,217,163,.12);color:var(--c-primary);border:1px solid rgba(0,217,163,.28);
  align-self:flex-start;
}
.badge-x.orange{background:rgba(255,106,43,.12);color:var(--c-accent);border-color:rgba(255,106,43,.3);}
.badge-x.violet{background:rgba(108,75,255,.14);color:#A794FF;border-color:rgba(108,75,255,.34);}
.badge-x.grey{background:rgba(166,174,189,.1);color:var(--c-text-2);border-color:rgba(166,174,189,.24);}

/* ============ 排行表 ============ */
.rank-table{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-card);
}
.rank-row{
  display:grid;grid-template-columns:56px minmax(0,1fr) 200px;
  align-items:center;gap:16px;
  padding:16px 22px;
  border-bottom:1px solid var(--c-line);
  transition:background .18s ease,padding-left .18s ease;
}
.rank-row:last-child{border-bottom:none;}
.rank-row:hover{background:var(--c-surface-2);}
.rank-no{
  font-size:18px;font-weight:800;color:var(--c-text-3);
  font-variant-numeric:tabular-nums;letter-spacing:.5px;
}
.rank-row.is-top .rank-no{color:var(--c-primary);}
.rank-title{font-size:15.5px;font-weight:600;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.rank-row:hover .rank-title{color:var(--c-primary);}
.rank-meta{display:flex;align-items:center;justify-content:flex-end;gap:14px;font-size:12.5px;color:var(--c-text-3);}
.chip{
  display:inline-flex;align-items:center;height:22px;padding:0 9px;
  border-radius:var(--r-badge);font-size:12px;
  background:var(--c-surface-2);color:var(--c-text-2);border:1px solid var(--c-line);
}

/* ============ 栏目矩阵 ============ */
.cat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.cat-card{
  display:flex;flex-direction:column;gap:12px;
  padding:22px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.cat-card:hover{transform:translateY(-2px);border-color:var(--c-primary);box-shadow:var(--sh-hover);}
.cat-card .cat-ic{
  width:40px;height:40px;border-radius:var(--r-btn);
  background:var(--c-surface-2);color:var(--c-primary);
  display:grid;place-items:center;font-size:15px;font-weight:700;
}
.cat-card h3{font-size:17px;font-weight:700;}
.cat-card p{font-size:13.5px;color:var(--c-text-2);line-height:1.7;}
.cat-card .cat-go{margin-top:auto;font-size:13.5px;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}
.cat-card.is-current{border-color:rgba(0,217,163,.45);}
.cat-card.is-current .cat-ic{background:rgba(0,217,163,.14);}

/* ============ FAQ 手风琴 ============ */
.faq-box{max-width:860px;border-top:1px solid var(--c-line);}
.faq-box .accordion-item{background:transparent;border:none;border-bottom:1px solid var(--c-line);}
.faq-box .accordion-button{
  background:transparent;color:var(--c-text);
  font-size:16.5px;font-weight:600;line-height:1.6;
  padding:20px 48px 20px 0;
  box-shadow:none;border-radius:0;
  transition:color .18s ease,padding-left .18s ease,border-color .18s ease;
}
.faq-box .accordion-button:not(.collapsed){
  color:var(--c-primary);
  border-left:2px solid var(--c-primary);
  padding-left:16px;
}
.faq-box .accordion-button:focus{box-shadow:none;outline:none;}
.faq-box .accordion-button:focus-visible{outline:2px solid var(--c-primary);outline-offset:-2px;}
.faq-box .accordion-button::after{
  content:"";position:absolute;right:10px;top:50%;
  width:16px;height:16px;margin:0;
  transform:translateY(-50%);
  background:none;
  background-image:linear-gradient(var(--c-text-2),var(--c-text-2)),linear-gradient(var(--c-text-2),var(--c-text-2));
  background-size:16px 2px,2px 16px;
  background-position:center,center;
  background-repeat:no-repeat;
  transition:transform .2s ease,background-image .2s ease;
}
.faq-box .accordion-button:not(.collapsed)::after{
  transform:translateY(-50%) rotate(45deg);
  background-image:linear-gradient(var(--c-primary),var(--c-primary)),linear-gradient(var(--c-primary),var(--c-primary));
}
.faq-box .accordion-body{padding:0 0 22px;font-size:15px;color:var(--c-text-2);line-height:1.8;max-width:760px;}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid rgba(0,217,163,.28);
  border-radius:var(--r-card);
  background:rgba(0,217,163,.08);
  padding:48px 44px;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.03) 0 1px,transparent 1px 40px),repeating-linear-gradient(90deg,rgba(255,255,255,.03) 0 1px,transparent 1px 40px);
}
.cta-grid{position:relative;z-index:1;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;}
.cta-grid h2{font-size:26px;line-height:1.35;margin-bottom:8px;}
.cta-grid p{font-size:14.5px;color:var(--c-text-2);max-width:560px;}
.cta-btns{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 联系表单 ============ */
.form-panel{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.25fr);gap:40px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:40px;
  box-shadow:var(--sh-card);
}
.form-intro h2{position:relative;font-size:24px;line-height:1.35;padding-left:14px;margin-bottom:12px;}
.form-intro h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--c-primary);}
.form-intro p{font-size:14.5px;color:var(--c-text-2);margin-bottom:18px;}
.form-intro ul{display:flex;flex-direction:column;gap:10px;}
.form-intro li{position:relative;padding-left:18px;font-size:14px;color:var(--c-text-2);}
.form-intro li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;background:var(--c-primary);}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.form-field{display:flex;flex-direction:column;gap:8px;}
.form-field.full{grid-column:1 / -1;}
.form-field label{font-size:14px;color:var(--c-text-2);}
.form-field input,.form-field select,.form-field textarea{
  width:100%;min-height:44px;padding:10px 14px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  color:var(--c-text);
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.form-field textarea{min-height:112px;resize:vertical;line-height:1.7;}
.form-field input::placeholder,.form-field textarea::placeholder{color:var(--c-text-3);}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none;border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(0,217,163,.18);
  background:var(--c-surface-2);
}
.form-note{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:16px;}
.form-note .tip{font-size:12.5px;color:var(--c-text-3);}
.form-ok{
  grid-column:1 / -1;
  display:flex;align-items:center;gap:10px;
  padding:12px 16px;border-radius:var(--r-btn);
  background:rgba(43,217,139,.12);
  border:1px solid rgba(43,217,139,.35);
  color:var(--c-ok);font-size:13.5px;
}

/* ============ 页脚 ============ */
.site-footer{border-top:1px solid var(--c-line);background:var(--c-surface);margin-top:8px;}
.site-footer .page-wrap{padding-top:56px;padding-bottom:24px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px;}
.footer-brand .logo-mark{width:26px;height:26px;}
.footer-brand .logo-text b{font-size:14.5px;}
.footer-col p{font-size:13.5px;color:var(--c-text-2);line-height:1.8;max-width:340px;}
.footer-col h4{font-size:13px;color:var(--c-text-3);letter-spacing:1.4px;font-weight:600;margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:14px;color:var(--c-text-2);transition:color .18s ease,padding-left .18s ease;}
.footer-col ul a:hover{color:var(--c-primary);padding-left:4px;}
.footer-bottom{
  margin-top:40px;padding-top:20px;
  border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:12.5px;color:var(--c-text-3);
}
.to-top{font-size:13px;color:var(--c-text-2);transition:color .18s ease;}
.to-top:hover{color:var(--c-primary);}

/* ============ 响应式 ============ */
@media (max-width:1399.98px){
  .page-wrap{max-width:1180px;}
}
@media (max-width:1199.98px){
  main{margin-left:72px;}
  .sidebar{width:72px;}
  .side-logo{padding:0;justify-content:center;}
  .logo-text{display:none;}
  .side-link{justify-content:center;padding:0;gap:0;}
  .side-link .txt{display:none;}
  .side-title{text-align:center;font-size:11px;letter-spacing:0;padding:0 0 8px;}
  .side-foot{display:none;}
  .news-grid{grid-template-columns:1fr;}
  .cat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .form-panel{grid-template-columns:1fr;gap:28px;padding:32px;}
  .rank-row{grid-template-columns:48px minmax(0,1fr) 170px;padding:15px 18px;}
}
@media (max-width:991.98px){
  main{margin-left:0;padding-top:56px;}
  .sidebar{width:280px;transform:translateX(-100%);}
  .sidebar.open{transform:translateX(0);}
  .side-logo{padding:0 18px;justify-content:flex-start;}
  .logo-text{display:flex;}
  .side-link{justify-content:flex-start;padding:0 10px;gap:10px;}
  .side-link .txt{display:inline;}
  .side-title{text-align:left;font-size:12px;letter-spacing:1.6px;padding:0 10px 8px;}
  .side-foot{display:block;}
  .topbar{display:flex;}
  .sec{padding:48px 0;}
  .page-hero{padding:40px 0 36px;}
  .page-hero h1{font-size:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767.98px){
  .page-wrap{padding:0 16px;}
  .page-hero h1{font-size:26px;line-height:1.32;}
  .hero-sub{font-size:15px;}
  .sec-head h2{font-size:23px;}
  .cta-grid h2{font-size:22px;}
  .news-card{flex-direction:column;gap:14px;padding:16px;}
  .news-thumb{width:100%;flex:none;aspect-ratio:16/10;}
  .form-grid{grid-template-columns:1fr;}
  .cta-band{padding:32px 22px;}
  .form-panel{padding:24px;}
  .rank-row{grid-template-columns:40px minmax(0,1fr);row-gap:6px;padding:14px 16px;}
  .rank-meta{grid-column:2;justify-content:flex-start;}
  .rank-title{white-space:normal;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:575.98px){
  .page-hero h1{font-size:23px;}
  .sec{padding:40px 0;}
  .btn-main,.btn-line,.btn-soft{width:100%;padding:0 18px;}
  .hero-actions{gap:10px;}
  .cat-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
  --c-bg:#0D0F14;
  --c-surface:#151821;
  --c-surface-2:#1C2029;
  --c-line:#272C38;
  --c-line-hover:#3A4152;
  --c-primary:#00D9A3;
  --c-secondary:#6C4BFF;
  --c-accent:#FF6A2B;
  --c-text:#F2F5F8;
  --c-text-2:#A6AEBD;
  --c-text-3:#6C7484;
  --c-success:#2BD98B;
  --c-warn:#FFB020;
  --c-danger:#FF5A5F;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --r-badge:6px;
  --sh-card:0 8px 24px rgba(0,0,0,.45);
  --glow:0 0 0 3px rgba(0,217,163,.18);
  --nav-w:232px;
  --s1:8px; --s2:12px; --s3:16px; --s4:24px; --s5:32px; --s6:48px; --s7:64px; --s8:96px;
  --bs-body-bg:#0D0F14;
  --bs-body-color:#F2F5F8;
  --bs-border-color:#272C38;
  --bs-link-color:#00D9A3;
  --bs-link-hover-color:#FF6A2B;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  min-height:100vh;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease;}
a:hover{color:var(--c-primary);}
button,input,select,textarea{font-family:inherit;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.35;color:var(--c-text);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(0,217,163,.3);color:#fff;}

/* ============ 侧边导航 App Shell ============ */
.side-shell{
  position:fixed;left:0;top:0;bottom:0;width:var(--nav-w);
  background:var(--c-surface);
  border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;
  z-index:1040;
}
.side-logo{
  height:72px;flex:0 0 72px;display:flex;align-items:center;gap:10px;
  padding:0 18px;border-bottom:1px solid var(--c-line);
}
.logo-mark{
  width:28px;height:28px;flex:0 0 28px;
  display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:3px;
}
.logo-mark i{display:block;background:var(--c-primary);border-radius:2px;}
.logo-mark i:nth-child(4){background:var(--c-secondary);}
.logo-text{display:flex;flex-direction:column;line-height:1.15;min-width:0;}
.logo-text b{font-size:15px;font-weight:800;color:var(--c-text);letter-spacing:.2px;white-space:nowrap;}
.logo-text span{font-size:11px;color:var(--c-text-3);letter-spacing:2px;}
.side-scroll{flex:1;overflow-y:auto;padding:16px 12px 20px;scrollbar-width:thin;scrollbar-color:var(--c-line) transparent;}
.side-scroll::-webkit-scrollbar{width:6px;}
.side-scroll::-webkit-scrollbar-thumb{background:var(--c-line);border-radius:3px;}
.side-group{margin-bottom:20px;}
.side-title{font-size:12px;color:var(--c-text-3);letter-spacing:1.4px;padding:0 12px;margin-bottom:8px;}
.side-link{
  position:relative;display:flex;align-items:center;gap:10px;height:44px;
  padding:0 12px;border-radius:var(--r-btn);color:var(--c-text-2);font-size:14px;
  white-space:nowrap;
}
.side-link .ic{
  flex:0 0 24px;width:24px;height:24px;border-radius:7px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-surface-2);color:var(--c-text-2);font-size:12px;font-weight:700;
  transition:background-color .18s ease,color .18s ease;
}
.side-link:hover,.side-link.active{background:var(--c-surface-2);color:#fff;}
.side-link:hover .ic,.side-link.active .ic{background:rgba(0,217,163,.14);color:var(--c-primary);}
.side-link:hover::before,.side-link.active::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  border-radius:0 2px 2px 0;background:var(--c-primary);
}
.side-foot{
  border-top:1px solid var(--c-line);padding:16px 18px 18px;font-size:12px;color:var(--c-text-3);line-height:1.7;
}
.side-foot b{display:block;color:var(--c-text-2);font-size:13px;margin-bottom:4px;font-weight:600;}

/* 主内容区 */
.app-main{margin-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column;}
.page-wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 24px;}

/* ============ 移动端顶栏与抽屉 ============ */
.mobile-bar{display:none;}
.drawer,.drawer-mask{display:none;}
@media (max-width:991.98px){
  .side-shell{display:none;}
  .app-main{margin-left:0;padding-top:56px;}
  .mobile-bar{
    display:flex;align-items:center;gap:12px;
    position:fixed;top:0;left:0;right:0;height:56px;padding:0 16px;
    background:rgba(21,24,33,.96);border-bottom:1px solid var(--c-line);z-index:1050;
  }
  .mb-btn{
    width:38px;height:38px;border-radius:10px;border:1px solid var(--c-line);
    background:var(--c-surface-2);color:var(--c-text);font-size:15px;
    display:inline-flex;align-items:center;justify-content:center;
  }
  .mb-brand{display:flex;align-items:center;gap:8px;flex:1;min-width:0;}
  .mb-brand .logo-mark{width:22px;height:22px;flex:0 0 22px;}
  .mb-brand b{font-size:14px;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
  .mb-cta{
    font-size:13px;font-weight:600;color:#0B0C10;background:var(--c-accent);
    padding:8px 14px;border-radius:var(--r-btn);white-space:nowrap;
  }
  .mb-cta:hover{color:#0B0C10;background:#ff7f47;}
  .drawer-mask{
    display:block;position:fixed;inset:0;background:rgba(0,0,0,.65);
    opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;z-index:1055;
  }
  .drawer-mask.show{opacity:1;visibility:visible;}
  .drawer{
    display:flex;flex-direction:column;
    position:fixed;top:0;left:0;bottom:0;width:280px;max-width:82vw;
    background:var(--c-surface);border-right:1px solid var(--c-line);
    transform:translateX(-100%);transition:transform .2s ease;z-index:1060;
  }
  .drawer.open{transform:translateX(0);}
}

/* ============ 通用组件 ============ */
.btn{
  --bs-btn-border-radius:var(--r-btn);
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  padding:11px 22px;line-height:1.2;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn:focus-visible{box-shadow:var(--glow);outline:none;}
.btn-neon{background:var(--c-accent);border:1px solid var(--c-accent);color:#0B0C10;}
.btn-neon:hover,.btn-neon:focus{background:#ff7f47;border-color:#ff7f47;color:#0B0C10;transform:translateY(-1px);}
.btn-ghost{background:transparent;border:1px solid var(--c-primary);color:var(--c-primary);}
.btn-ghost:hover,.btn-ghost:focus{background:rgba(0,217,163,.1);border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px);}
.btn-quiet{background:var(--c-surface-2);border:1px solid var(--c-line);color:var(--c-text-2);}
.btn-quiet:hover{background:var(--c-surface-2);border-color:var(--c-line-hover);color:#fff;}
.link-more{font-size:14px;color:var(--c-primary);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.link-more:hover{color:var(--c-accent);}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.5px;font-weight:600;
  padding:4px 10px;border-radius:var(--r-badge);
  background:rgba(0,217,163,.12);color:var(--c-primary);
}
.tag.tag-alt{background:rgba(108,75,255,.16);color:#A38DFF;}
.tag.tag-warm{background:rgba(255,106,43,.14);color:#FF9A6B;}
.tag.tag-mute{background:var(--c-surface-2);color:var(--c-text-2);}
.sec-head{margin-bottom:28px;}
.sec-head h2{font-size:28px;font-weight:700;display:flex;align-items:center;gap:12px;}
.sec-head h2::before{content:"";width:3px;height:24px;border-radius:2px;background:var(--c-primary);flex:0 0 3px;}
.sec-head p{margin-top:8px;color:var(--c-text-2);font-size:15px;max-width:44em;}

/* ============ 分类 Hero ============ */
.cat-hero{
  position:relative;overflow:hidden;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  padding:56px 0 48px;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    repeating-linear-gradient(0deg,rgba(255,255,255,.04) 0 1px,transparent 1px 34px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.04) 0 1px,transparent 1px 34px);
}
.cat-hero::after{
  content:"";position:absolute;top:-80px;right:-60px;width:280px;height:280px;
  background:radial-gradient(circle,rgba(0,217,163,.16),transparent 68%);
  pointer-events:none;
}
.cat-hero .page-wrap{position:relative;z-index:1;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:20px;}
.crumb a{color:var(--c-text-2);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:var(--c-text-3);}
.cat-hero h1{
  font-size:40px;font-weight:800;line-height:1.24;letter-spacing:.2px;max-width:20em;
}
.cat-hero .lead{
  margin-top:16px;font-size:16px;color:var(--c-text-2);max-width:44em;line-height:1.8;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-points{display:flex;flex-wrap:wrap;gap:20px;margin-top:24px;font-size:13px;color:var(--c-text-2);}
.hero-points span{display:inline-flex;align-items:center;gap:7px;}
.hero-points i{color:var(--c-primary);font-size:12px;}

/* ============ 数据条 ============ */
.stat-bar{
  border-bottom:1px solid var(--c-line);
  background:var(--c-bg);
}
.stat-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:1px;background:var(--c-line);
}
.stat-item{background:var(--c-bg);padding:24px 22px;}
.stat-item .num{
  font-size:28px;font-weight:800;color:var(--c-primary);
  letter-spacing:-.5px;font-variant-numeric:tabular-nums;
}
.stat-item .num small{font-size:14px;font-weight:600;margin-left:4px;color:var(--c-text-2);}
.stat-item .cap{font-size:13px;color:var(--c-text-3);margin-top:6px;}

/* ============ 主体布局 ============ */
.section{padding:72px 0;}
.section-tight{padding:56px 0;}
.intro-text{color:var(--c-text-2);font-size:16px;line-height:1.85;}
.intro-text strong{color:var(--c-text);font-weight:600;}

/* 卡片网格 */
.card-grid{display:grid;gap:24px;grid-template-columns:repeat(2,minmax(0,1fr));}
.cat-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.cat-card:hover,.cat-card:focus-visible{
  transform:translateY(-2px);border-color:var(--c-primary);
  box-shadow:var(--sh-card),var(--glow);
}
.cat-card .thumb{
  width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--c-surface-2);
  border-bottom:1px solid var(--c-line);
}
.cat-card .card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.cat-card h3{font-size:18px;font-weight:700;line-height:1.45;}
.cat-card:hover h3{color:var(--c-primary);}
.cat-card .desc{
  font-size:14px;color:var(--c-text-2);line-height:1.72;flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cat-card .meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-text-3);padding-top:12px;border-top:1px solid var(--c-line);
}
.cat-card .meta .dot{width:3px;height:3px;border-radius:50%;background:var(--c-text-3);}
.cat-card .arrow{margin-left:auto;color:var(--c-text-3);font-size:13px;transition:color .18s ease,transform .18s ease;}
.cat-card:hover .arrow{color:var(--c-primary);transform:translateX(3px);}

/* ============ 侧栏 ============ */
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-card);margin-bottom:20px;
}
.side-card h4{font-size:15px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h4::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--c-primary);}
.side-nav-list li+li{margin-top:4px;}
.side-nav-list a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  height:40px;padding:0 12px;border-radius:var(--r-btn);
  font-size:14px;color:var(--c-text-2);background:transparent;
}
.side-nav-list a:hover{background:var(--c-surface-2);color:#fff;}
.side-nav-list a.on{background:rgba(0,217,163,.1);color:var(--c-primary);font-weight:600;}
.side-nav-list a i{font-size:11px;opacity:.75;}
.side-picks li+li{margin-top:14px;padding-top:14px;border-top:1px solid var(--c-line);}
.side-picks a{display:flex;gap:12px;align-items:flex-start;}
.side-picks img{
  width:76px;flex:0 0 76px;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--c-line);background:var(--c-surface-2);
}
.side-picks .t{font-size:14px;line-height:1.5;color:var(--c-text);font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.side-picks a:hover .t{color:var(--c-primary);}
.side-picks .d{font-size:12px;color:var(--c-text-3);margin-top:5px;}
.side-cta{
  background:linear-gradient(180deg,rgba(0,217,163,.09),rgba(0,217,163,.02));
  border:1px solid rgba(0,217,163,.35);border-radius:var(--r-card);padding:20px;
}
.side-cta h4{font-size:16px;margin-bottom:8px;}
.side-cta p{font-size:13px;color:var(--c-text-2);line-height:1.7;margin-bottom:14px;}
.side-cta .btn{width:100%;}
.sticky-side{position:sticky;top:24px;}

/* ============ 档期表 ============ */
.table-wrap{
  border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;background:var(--c-surface);
}
.table{
  --bs-table-bg:transparent;
  --bs-table-color:var(--c-text);
  --bs-table-border-color:var(--c-line);
  --bs-table-hover-bg:var(--c-surface-2);
  margin:0;font-size:14px;
}
.table>thead th{
  background:var(--c-surface-2);color:var(--c-text-2);
  font-size:13px;font-weight:600;letter-spacing:.4px;
  padding:14px 18px;border-bottom:1px solid var(--c-line);white-space:nowrap;
}
.table>tbody td{
  padding:16px 18px;border-bottom:1px solid var(--c-line);
  color:var(--c-text-2);vertical-align:middle;
}
.table>tbody tr:last-child td{border-bottom:0;}
.table>tbody td:first-child{color:var(--c-text);font-weight:600;}
.state{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;}
.state i{font-size:7px;}
.state.now{color:var(--c-success);}
.state.soon{color:var(--c-warn);}
.state.wait{color:var(--c-text-3);}
.state.end{color:var(--c-danger);}

/* ============ 表单 ============ */
.form-panel{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--sh-card);
}
.form-label{font-size:14px;color:var(--c-text-2);margin-bottom:6px;}
.form-control,.form-select{
  height:44px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-input);color:var(--c-text);font-size:15px;
  padding:0 14px;transition:border-color .18s ease,box-shadow .18s ease;
}
.form-select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23A6AEBD'%3E%3Cpath d='M8 11 3 6h10z'/%3E%3C/svg%3E");}
textarea.form-control{height:auto;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-control::placeholder,textarea.form-control::placeholder{color:var(--c-text-3);}
.form-control:focus,.form-select:focus{
  background:var(--c-surface);color:var(--c-text);
  border-color:var(--c-primary);box-shadow:var(--glow);outline:none;
}
.form-hint{font-size:13px;color:var(--c-text-3);}
.form-alert{
  display:none;align-items:center;gap:10px;
  padding:12px 16px;border-radius:var(--r-btn);font-size:14px;
  background:rgba(43,217,139,.12);border:1px solid rgba(43,217,139,.4);color:var(--c-success);
}
.form-alert.show{display:flex;}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--c-line);}
.accordion-item:first-child{border-top:1px solid var(--c-line);}
.accordion-button{
  background:transparent;color:var(--c-text);font-size:17px;font-weight:600;
  padding:20px 44px 20px 0;box-shadow:none;border-radius:0;position:relative;
}
.accordion-button:not(.collapsed){color:var(--c-primary);background:transparent;box-shadow:none;}
.accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:-14px;top:22px;bottom:22px;width:2px;
  border-radius:2px;background:var(--c-primary);
}
.accordion-button:focus{box-shadow:none;border-color:transparent;}
.accordion-button::after{
  content:"+";background-image:none;font-size:22px;font-weight:400;line-height:1;
  width:26px;height:26px;display:flex;align-items:center;justify-content:center;
  color:var(--c-primary);transform:none;transition:transform .2s ease;position:absolute;right:0;
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.accordion-body{
  padding:0 0 22px;font-size:15px;color:var(--c-text-2);line-height:1.85;max-width:40em;
}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background-color:rgba(0,217,163,.08);
  border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    repeating-linear-gradient(0deg,rgba(255,255,255,.04) 0 1px,transparent 1px 30px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.04) 0 1px,transparent 1px 30px);
}
.cta-inner{
  position:relative;z-index:1;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:28px;padding:56px 0;
}
.cta-inner h2{font-size:26px;font-weight:700;max-width:22em;}
.cta-inner p{margin-top:10px;color:var(--c-text-2);font-size:15px;max-width:40em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 页脚 ============ */
.site-footer{border-top:1px solid var(--c-line);background:var(--c-surface);padding:56px 0 24px;margin-top:auto;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .logo-text b{font-size:15px;}
.footer-col p{font-size:13px;color:var(--c-text-3);line-height:1.8;max-width:32em;}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:14px;color:var(--c-text);}
.footer-col ul li+li{margin-top:9px;}
.footer-col ul a{font-size:13px;color:var(--c-text-2);}
.footer-col ul a:hover{color:var(--c-primary);}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  margin-top:40px;padding-top:20px;border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-3);
}
.to-top{color:var(--c-text-2);font-size:13px;}
.to-top:hover{color:var(--c-primary);}

/* ============ 响应式 ============ */
@media (min-width:992px) and (max-width:1199.98px){
  :root{--nav-w:72px;}
  .side-logo{justify-content:center;padding:0;}
  .side-logo .logo-text{display:none;}
  .side-title{display:none;}
  .side-link{justify-content:center;padding:0;gap:0;}
  .side-link .tx{display:none;}
  .side-link:hover::before,.side-link.active::before{top:14px;bottom:14px;}
  .side-foot{display:none;}
}
@media (max-width:1199.98px){
  .cat-hero h1{font-size:34px;}
  .section{padding:56px 0;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:991.98px){
  .cat-hero{padding:36px 0 36px;}
  .cat-hero h1{font-size:30px;}
  .cat-hero .lead{font-size:15px;}
  .page-wrap{padding:0 16px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .cta-inner{padding:44px 0;}
  .cta-inner h2{font-size:22px;}
  .sticky-side{position:static;}
}
@media (max-width:767.98px){
  .section{padding:44px 0;}
  .section-tight{padding:36px 0;}
  .card-grid{grid-template-columns:1fr;}
  .form-panel{padding:22px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .sec-head h2{font-size:22px;}
  .cat-hero h1{font-size:26px;}
  .table>thead th,.table>tbody td{padding:12px 14px;}
  .accordion-button{font-size:15px;padding:16px 36px 16px 0;}
  .accordion-body{font-size:14px;}
}
@media (max-width:575.98px){
  .stat-grid{grid-template-columns:1fr;}
  .cat-hero{padding:28px 0 30px;}
  .cat-hero h1{font-size:23px;line-height:1.3;}
  .hero-actions .btn{width:100%;justify-content:center;text-align:center;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;text-align:center;}
  .stat-item{padding:18px 16px;}
  .stat-item .num{font-size:24px;}
  .cat-card .card-body{padding:16px;}
  .cat-card h3{font-size:16px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --c-bg:#0D0F14;
  --c-surface:#151821;
  --c-surface-2:#1C2029;
  --c-line:#272C38;
  --c-line-h:#3A4152;
  --c-primary:#00D9A3;
  --c-secondary:#6C4BFF;
  --c-accent:#FF6A2B;
  --c-text:#F2F5F8;
  --c-text-2:#A6AEBD;
  --c-text-3:#6C7484;
  --c-ok:#2BD98B;
  --c-warn:#FFB020;
  --c-err:#FF5A5F;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --r-badge:6px;
  --sh-card:0 8px 24px rgba(0,0,0,.45);
  --side-w:232px;
  --wrap:1280px;

  --bs-body-bg:#0D0F14;
  --bs-body-color:#F2F5F8;
  --bs-border-color:#272C38;
  --bs-primary:#00D9A3;
  --bs-link-color:#A6AEBD;
  --bs-link-hover-color:#00D9A3;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease;}
a:hover{color:var(--c-primary);}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
h1,h2,h3,h4{line-height:1.35;letter-spacing:.2px;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}

/* ============ 侧边导航（App Shell） ============ */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:var(--side-w);
  background:#101319;border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;overflow-y:auto;overflow-x:hidden;
  z-index:1040;
}
.side-brand{
  height:72px;flex:0 0 auto;display:flex;align-items:center;gap:10px;
  padding:0 18px;border-bottom:1px solid var(--c-line);
}
.logo-mark{
  width:34px;height:34px;flex:0 0 auto;display:grid;
  grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);
  gap:3px;padding:5px;border:1px solid var(--c-line);border-radius:10px;
  background:var(--c-surface);
}
.logo-mark i{display:block;background:var(--c-primary);border-radius:2px;opacity:.9;}
.logo-mark i:nth-child(2),.logo-mark i:nth-child(4){background:var(--c-secondary);opacity:.75;}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-text b{font-size:15px;font-weight:800;letter-spacing:.3px;color:#fff;white-space:nowrap;}
.logo-text span{font-size:11px;color:var(--c-text-3);letter-spacing:2px;}

.side-nav{display:flex;flex-direction:column;gap:16px;padding:18px 12px 8px;}
.side-title{
  font-size:12px;letter-spacing:.5px;color:var(--c-text-3);
  padding:0 10px 8px;
}
.side-group{display:flex;flex-direction:column;gap:4px;}
.side-link{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:10px;
  color:var(--c-text-2);font-size:15px;
  transition:background-color .18s ease,color .18s ease;
}
.side-link .ic{
  width:22px;height:22px;flex:0 0 auto;border-radius:7px;
  display:grid;place-items:center;font-size:12px;
  background:var(--c-surface-2);border:1px solid var(--c-line);color:var(--c-primary);
}
.side-link:hover{background:var(--c-surface-2);color:#fff;}
.side-link:hover::before,
.side-link.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:0 3px 3px 0;background:var(--c-primary);
}
.side-link.active{background:var(--c-surface-2);color:#fff;}
.side-link.active .ic{background:rgba(0,217,163,.12);border-color:rgba(0,217,163,.35);}
.side-foot{
  margin-top:auto;padding:16px;border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-3);line-height:1.7;
}
.side-foot b{display:block;color:var(--c-text-2);font-size:13px;font-weight:600;margin-bottom:4px;}

/* ============ 顶栏与抽屉（移动端） ============ */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;
  align-items:center;gap:12px;padding:0 16px;
  background:rgba(13,15,20,.94);border-bottom:1px solid var(--c-line);
  z-index:1050;
}
.hamburger{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--c-line);
  background:var(--c-surface);display:grid;place-items:center;gap:4px;
  padding:9px;
}
.hamburger span{display:block;width:100%;height:2px;background:var(--c-text-2);border-radius:2px;}
.topbar-brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:15px;color:#fff;}
.topbar-cta{
  margin-left:auto;font-size:13px;padding:8px 12px;border-radius:var(--r-btn);
  background:var(--c-accent);color:#0B0C10;font-weight:700;
}
.topbar-cta:hover{color:#0B0C10;filter:brightness(1.06);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.65);z-index:1035;
  opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;
}
.drawer-mask.open{opacity:1;visibility:visible;}

/* ============ 主区域 ============ */
.main{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column;}
.page-wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--c-line);
  background-image:linear-gradient(rgba(13,15,20,.86),rgba(13,15,20,.95)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.04) 0 1px,transparent 1px 44px),
                   repeating-linear-gradient(90deg,rgba(255,255,255,.04) 0 1px,transparent 1px 44px);
  opacity:.65;
}
.hero-inner{position:relative;z-index:2;padding:64px 0 56px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:20px;}
.crumb a{color:var(--c-text-2);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:var(--c-text-3);}
.hero h1{
  font-size:40px;line-height:1.25;font-weight:800;margin:0 0 16px;
  max-width:22em;
}
.hero h1 em{font-style:normal;color:var(--c-primary);}
.hero-lead{font-size:17px;color:var(--c-text-2);max-width:660px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.trust-row{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13px;color:var(--c-text-3);}
.trust-row span{display:inline-flex;align-items:center;gap:8px;}
.trust-row span::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--c-primary);display:inline-block;}

/* 按钮 */
.btn-main,.btn-ghost,.btn-soft{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:transform .16s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease,color .18s ease;
}
.btn-main{background:var(--c-accent);color:#0B0C10;}
.btn-main:hover{color:#0B0C10;transform:translateY(-2px);box-shadow:0 10px 22px rgba(255,106,43,.24);}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-ghost:hover{color:var(--c-primary);background:rgba(0,217,163,.08);transform:translateY(-2px);}
.btn-soft{background:var(--c-surface-2);border-color:var(--c-line);color:var(--c-text);}
.btn-soft:hover{color:#fff;border-color:var(--c-line-h);transform:translateY(-2px);}
.btn-block{width:100%;}
.link-more{color:var(--c-primary);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px;}
.link-more:hover{color:var(--c-accent);}

/* 板块 */
.section{padding:64px 0;}
.section-tight{padding:48px 0;}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px;}
.sec-head h2{
  position:relative;font-size:28px;font-weight:700;margin:0;padding-left:14px;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;
  border-radius:2px;background:var(--c-primary);
}
.sec-sub{font-size:14px;color:var(--c-text-2);max-width:620px;margin-top:8px;}
.lead-text{font-size:16.5px;color:var(--c-text-2);max-width:820px;}
.lead-text strong{color:var(--c-text);font-weight:600;}

/* 价值点条目 */
.value-list{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--c-line);}
.value-item{
  display:flex;gap:16px;align-items:flex-start;
  padding:20px 4px;border-bottom:1px solid var(--c-line);
}
.value-item .vi-ic{
  width:40px;height:40px;flex:0 0 auto;border-radius:10px;
  background:var(--c-surface-2);border:1px solid var(--c-line);
  display:grid;place-items:center;color:var(--c-primary);font-weight:800;font-size:14px;
}
.value-item h3{font-size:17px;font-weight:600;margin:0 0 6px;}
.value-item p{font-size:14.5px;color:var(--c-text-2);margin:0;}

/* 步骤 / 时间线 */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-card);
  transition:transform .18s ease,border-color .18s ease;
}
.step::before{
  content:"";position:absolute;top:-1px;left:20px;width:46px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.step:hover{transform:translateY(-2px);border-color:var(--c-primary);}
.step-num{
  font-size:14px;font-weight:800;letter-spacing:1px;color:var(--c-primary);
  display:block;margin-bottom:10px;
}
.step h3{font-size:17px;font-weight:600;margin:0 0 8px;}
.step p{font-size:14.5px;color:var(--c-text-2);margin:0;}

/* 卡片网格 */
.card-item{
  display:flex;flex-direction:column;height:100%;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.card-item:hover{
  transform:translateY(-2px);border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(0,217,163,.18),var(--sh-card);
}
.card-media{position:relative;aspect-ratio:16/10;background:var(--c-surface-2);overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease;}
.card-item:hover .card-media img{transform:scale(1.04);}
.badge-tag{
  position:absolute;top:12px;left:12px;z-index:2;
  font-size:12px;letter-spacing:.5px;padding:4px 10px;border-radius:var(--r-badge);
  background:rgba(11,12,16,.84);border:1px solid var(--c-line-h);color:var(--c-primary);
}
.badge-tag.tone-violet{color:#B9A9FF;border-color:rgba(108,75,255,.55);}
.badge-tag.tone-orange{color:#FFB48C;border-color:rgba(255,106,43,.5);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{font-size:18px;font-weight:600;margin:0;}
.card-item:hover .card-title{color:var(--c-primary);}
.card-text{
  font-size:14.5px;color:var(--c-text-2);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--c-text-3);
}
.card-meta .arrow{color:var(--c-primary);font-weight:700;}

/* 侧栏 */
.side-col{position:sticky;top:24px;}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:20px;margin-bottom:20px;
}
.side-card h3{
  position:relative;font-size:16px;font-weight:600;margin:0 0 14px;padding-left:11px;
}
.side-card h3::before{
  content:"";position:absolute;left:0;top:4px;bottom:4px;width:3px;
  border-radius:2px;background:var(--c-primary);
}
.side-nav-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px;}
.side-nav-list a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:10px 12px;border-radius:10px;border:1px solid transparent;
  font-size:14.5px;color:var(--c-text-2);
}
.side-nav-list a:hover{background:var(--c-surface-2);color:#fff;border-color:var(--c-line);}
.side-nav-list a.is-current{background:var(--c-surface-2);border-color:rgba(0,217,163,.35);color:#fff;}
.side-nav-list a.is-current span:last-child{color:var(--c-primary);}
.tip-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.tip-list li{
  position:relative;padding-left:18px;font-size:14px;color:var(--c-text-2);line-height:1.7;
}
.tip-list li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;
  background:var(--c-primary);
}
.side-cta{
  background:linear-gradient(180deg,rgba(0,217,163,.10),rgba(0,217,163,0));
  border:1px solid var(--c-line);
}
.side-cta p{font-size:14px;color:var(--c-text-2);margin-bottom:14px;}

/* FAQ */
.faq-wrap{max-width:840px;margin:0 auto;}
.accordion{border-top:1px solid var(--c-line);}
.acc-item{border-bottom:1px solid var(--c-line);background:transparent;}
.accordion-button.acc-btn{
  position:relative;width:100%;background:transparent;border:0;box-shadow:none;
  color:var(--c-text);font-size:16.5px;font-weight:600;line-height:1.6;
  text-align:left;padding:20px 46px 20px 16px;border-radius:0;
  transition:color .18s ease;
}
.accordion-button.acc-btn::before{
  content:"";position:absolute;left:0;top:15px;bottom:15px;width:2px;
  background:var(--c-primary);border-radius:2px;opacity:0;transition:opacity .18s ease;
}
.accordion-button.acc-btn::after{
  content:"+";position:absolute;right:14px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--c-text-3);line-height:1;
  transition:transform .2s ease,color .2s ease;
}
.accordion-button.acc-btn:hover{color:var(--c-primary);}
.accordion-button.acc-btn:not(.collapsed){color:var(--c-primary);background:transparent;box-shadow:none;}
.accordion-button.acc-btn:not(.collapsed)::before{opacity:1;}
.accordion-button.acc-btn:not(.collapsed)::after{transform:translateY(-50%) rotate(45deg);color:var(--c-primary);}
.accordion-button.acc-btn:focus{box-shadow:0 0 0 3px rgba(0,217,163,.18);}
.acc-body{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-img);
  padding:16px 18px;margin:0 0 18px;font-size:15px;color:var(--c-text-2);
}
.acc-body strong{color:var(--c-text);font-weight:600;}

/* CTA 带 */
.cta-band{
  position:relative;overflow:hidden;padding:64px 0;
  border-top:1px solid var(--c-line);
  background:linear-gradient(0deg,rgba(0,217,163,.08),rgba(0,217,163,.08));
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.04) 0 1px,transparent 1px 40px),
                   repeating-linear-gradient(90deg,rgba(255,255,255,.04) 0 1px,transparent 1px 40px);
  opacity:.7;pointer-events:none;
}
.cta-inner{position:relative;z-index:2;max-width:760px;margin:0 auto;text-align:center;}
.cta-inner h2{font-size:28px;font-weight:700;margin:0 0 12px;}
.cta-inner p{font-size:16px;color:var(--c-text-2);margin-bottom:24px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;}

/* 页脚 */
.site-footer{background:#0A0C10;border-top:1px solid var(--c-line);margin-top:auto;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;
  padding:56px 0 0;
}
.footer-col h4{font-size:15px;font-weight:600;margin:0 0 14px;color:#fff;}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:14px;color:var(--c-text-2);}
.footer-col ul a:hover{color:var(--c-primary);}
.footer-col p{font-size:14px;color:var(--c-text-3);line-height:1.8;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  margin-top:36px;padding:20px 0;border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-3);
}
.to-top{color:var(--c-primary);font-weight:600;}

/* 响应式 */
@media (min-width:992px) and (max-width:1199px){
  .sidebar{width:72px;}
  .side-brand{padding:0;justify-content:center;}
  .logo-text{display:none;}
  .side-title{display:none;}
  .side-link{justify-content:center;padding:0;gap:0;}
  .side-link .lb{display:none;}
  .side-nav{padding:18px 10px 8px;}
  .side-foot{display:none;}
  .main{margin-left:72px;}
}
@media (max-width:991px){
  .topbar{display:flex;}
  .sidebar{width:280px;transform:translateX(-100%);transition:transform .2s ease;}
  .sidebar.open{transform:translateX(0);}
  .main{margin-left:0;padding-top:56px;}
  .side-foot{display:block;}
}
@media (max-width:991px){
  .hero-inner{padding:44px 0 40px;}
  .hero h1{font-size:30px;}
  .section{padding:48px 0;}
  .section-tight{padding:36px 0;}
  .sec-head h2{font-size:24px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .side-col{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;padding-top:44px;}
}
@media (max-width:767px){
  .page-wrap{padding:0 16px;}
  .hero h1{font-size:27px;}
  .hero-lead{font-size:15.5px;}
  .steps{grid-template-columns:1fr;}
  .step{padding-left:20px;}
  .cta-inner h2{font-size:23px;}
}
@media (max-width:575px){
  .hero h1{font-size:25px;}
  .sec-head h2{font-size:21px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
  .card-body{padding:16px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
  --c-bg:#0D0F14;
  --c-surface:#151821;
  --c-surface-2:#1C2029;
  --c-line:#272C38;
  --c-line-hover:#3A4152;
  --c-primary:#00D9A3;
  --c-secondary:#6C4BFF;
  --c-accent:#FF6A2B;
  --c-text:#F2F5F8;
  --c-text-2:#A6AEBD;
  --c-text-3:#6C7484;
  --c-ok:#2BD98B;
  --c-warn:#FFB020;
  --c-err:#FF5A5F;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --r-badge:6px;
  --sh-card:0 8px 24px rgba(0,0,0,.45);
  --sp-1:8px; --sp-2:12px; --sp-3:16px; --sp-4:24px; --sp-5:32px; --sp-6:48px; --sp-7:64px;
  --side-w:232px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  padding-left:var(--side-w);
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,background .18s ease;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--c-primary);
  outline-offset:2px;
}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.2px;}
p{margin:0;color:var(--c-text-2);}
ul{margin:0;padding:0;list-style:none;}
hr{border:0;border-top:1px solid var(--c-line);margin:0;}

/* ---------- 布局容器 ---------- */
.page-wrap{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 var(--sp-4);
}
.section{padding:var(--sp-7) 0;}
.section-tight{padding:var(--sp-6) 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--sp-4);margin-bottom:var(--sp-5);}
.section-head h2{font-size:28px;font-weight:700;position:relative;padding-left:14px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:2px;background:var(--c-primary);
}
.section-head .lead{font-size:14px;color:var(--c-text-3);max-width:560px;}
.section-head a.more{font-size:14px;color:var(--c-primary);white-space:nowrap;}

/* ---------- 左侧导航 ---------- */
.app-side{
  position:fixed;left:0;top:0;z-index:60;
  width:var(--side-w);height:100vh;
  display:flex;flex-direction:column;gap:2px;
  padding:0 14px 20px;
  background:var(--c-surface);
  border-right:1px solid var(--c-line);
  overflow-y:auto;
  scrollbar-width:thin;
}
.app-side::-webkit-scrollbar{width:6px;}
.app-side::-webkit-scrollbar-thumb{background:var(--c-line);border-radius:6px;}
.side-logo{
  height:72px;display:flex;align-items:center;gap:10px;
  border-bottom:1px solid var(--c-line);margin-bottom:14px;flex:0 0 auto;
}
.logo-mark{width:30px;height:30px;display:grid;grid-template-columns:1fr 1fr;gap:3px;flex:0 0 auto;}
.logo-mark i{display:block;border-radius:3px;background:var(--c-primary);}
.logo-mark i:nth-child(2){background:var(--c-secondary);}
.logo-mark i:nth-child(3){background:var(--c-secondary);opacity:.6;}
.logo-mark i:nth-child(4){background:var(--c-primary);opacity:.55;}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text b{font-size:14px;font-weight:700;color:var(--c-text);}
.logo-text span{font-size:11px;letter-spacing:.16em;color:var(--c-text-3);}
.side-title{
  font-size:12px;letter-spacing:.1em;color:var(--c-text-3);
  font-weight:600;padding:10px 12px 6px;
}
.side-group{display:flex;flex-direction:column;gap:2px;}
.side-link{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:var(--r-btn);
  font-size:14px;color:var(--c-text-2);
  transition:background .18s ease,color .18s ease;
}
.side-link::before{
  content:"";position:absolute;left:0;top:50%;
  width:3px;height:20px;border-radius:2px;background:var(--c-primary);
  transform:translateY(-50%) scaleY(0);transition:transform .18s ease;
}
.side-link:hover{background:var(--c-surface-2);color:var(--c-text);}
.side-link:hover::before{transform:translateY(-50%) scaleY(1);}
.side-link.active{background:var(--c-surface-2);color:#fff;}
.side-link.active::before{transform:translateY(-50%) scaleY(1);}
.side-link .ic{
  width:26px;height:26px;flex:0 0 auto;border-radius:8px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-surface-2);color:var(--c-primary);
  font-size:12px;font-weight:600;
}
.side-link.active .ic{background:rgba(0,217,163,.14);}
.side-foot{
  margin-top:auto;padding:16px 12px 0;border-top:1px solid var(--c-line);
  font-size:12px;line-height:1.7;color:var(--c-text-3);
}
.side-foot b{color:var(--c-text-2);font-weight:600;display:block;margin-bottom:4px;}

/* ---------- 移动端顶栏与抽屉 ---------- */
.mobile-bar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:70;
  align-items:center;gap:12px;padding:0 14px;
  background:rgba(21,24,33,.97);
  border-bottom:1px solid var(--c-line);
}
.burger{
  width:38px;height:38px;border:1px solid var(--c-line);border-radius:10px;
  background:var(--c-surface-2);display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:4px;cursor:pointer;
}
.burger span{display:block;width:16px;height:2px;border-radius:2px;background:var(--c-text-2);}
.mobile-brand{display:flex;align-items:center;gap:8px;}
.mobile-cta{
  margin-left:auto;font-size:13px;padding:7px 14px;border-radius:var(--r-btn);
  border:1px solid var(--c-primary);color:var(--c-primary);
}
.drawer-mask{
  display:none;position:fixed;inset:0;z-index:80;
  background:rgba(0,0,0,.65);
}
.drawer-mask.show{display:block;}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);padding:28px 0 14px;}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#3A4152;}
.crumb .now{color:var(--c-text-2);}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:44px 40px 40px;
  background-image:linear-gradient(100deg,rgba(13,15,20,.95) 0%,rgba(13,15,20,.78) 55%,rgba(13,15,20,.62) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  box-shadow:var(--sh-card);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(90deg,rgba(242,245,248,.04) 0 1px,transparent 1px 44px),
                   repeating-linear-gradient(0deg,rgba(242,245,248,.04) 0 1px,transparent 1px 44px);
}
.cat-hero > *{position:relative;z-index:1;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.5px;color:var(--c-primary);
  border:1px solid rgba(0,217,163,.35);background:rgba(0,217,163,.08);
  border-radius:999px;padding:5px 14px;margin-bottom:18px;
}
.cat-hero h1{font-size:40px;font-weight:800;line-height:1.2;max-width:840px;}
.cat-hero h1 em{font-style:normal;color:var(--c-primary);}
.cat-hero .hero-sub{margin-top:16px;font-size:17px;color:var(--c-text-2);max-width:660px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.tag-pill{
  font-size:12px;letter-spacing:.5px;color:var(--c-text-2);
  border:1px solid var(--c-line);border-radius:var(--r-badge);
  padding:5px 12px;background:rgba(28,32,41,.8);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}

/* ---------- 按钮 ---------- */
.btn-nova{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,background .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease;
}
.btn-nova.primary{background:var(--c-accent);color:#0B0C10;}
.btn-nova.primary:hover{background:#ff7f4a;transform:translateY(-2px);}
.btn-nova.ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-nova.ghost:hover{background:rgba(0,217,163,.1);transform:translateY(-2px);}
.btn-nova.line{background:var(--c-surface-2);border-color:var(--c-line);color:var(--c-text);}
.btn-nova.line:hover{border-color:var(--c-line-hover);transform:translateY(-2px);}
.btn-nova.sm{height:38px;font-size:13px;padding:0 16px;}

/* ---------- 数据条 ---------- */
.stat-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-4);margin-top:var(--sp-5);}
.stat{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:20px 22px;
  transition:border-color .18s ease,transform .18s ease;
}
.stat:hover{border-color:var(--c-line-hover);transform:translateY(-2px);}
.stat b{display:block;font-size:26px;font-weight:800;color:var(--c-primary);letter-spacing:.5px;font-variant-numeric:tabular-nums;}
.stat span{display:block;font-size:13px;color:var(--c-text-3);margin-top:4px;}

/* ---------- 导语 ---------- */
.intro-text{font-size:17px;line-height:1.9;color:var(--c-text-2);max-width:900px;}
.intro-text strong{color:var(--c-text);font-weight:600;}

/* ---------- 主题专题（图文交替） ---------- */
.topic{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:24px;margin-bottom:var(--sp-4);
  transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.topic:hover{border-color:var(--c-line-hover);transform:translateY(-2px);box-shadow:var(--sh-card);}
.topic h2{font-size:22px;margin-bottom:12px;}
.topic p{font-size:15px;line-height:1.85;}
.media{
  border-radius:var(--r-img);overflow:hidden;border:1px solid var(--c-line);
  aspect-ratio:4/3;background:var(--c-surface-2);
}
.media img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease;}
.topic:hover .media img{transform:scale(1.03);}
.point-list{margin-top:14px;display:flex;flex-direction:column;gap:8px;}
.point-list li{
  position:relative;padding-left:20px;font-size:14px;color:var(--c-text-2);line-height:1.7;
}
.point-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;
  background:rgba(0,217,163,.25);border:1px solid var(--c-primary);
}
.link-more{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:14px;font-weight:600;color:var(--c-primary);}
.link-more:hover{color:var(--c-accent);}

/* ---------- 维度卡 ---------- */
.dim-card{
  height:100%;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:20px;
  transition:border-color .18s ease,transform .18s ease;
  position:relative;overflow:hidden;
}
.dim-card::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:2px;
  background:linear-gradient(90deg,var(--c-primary),transparent);
  opacity:0;transition:opacity .18s ease;
}
.dim-card:hover{border-color:var(--c-primary);transform:translateY(-2px);}
.dim-card:hover::before{opacity:1;}
.dim-ic{
  width:40px;height:40px;border-radius:10px;background:var(--c-surface-2);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-primary);font-size:15px;font-weight:700;margin-bottom:14px;
}
.dim-card h3{font-size:17px;margin-bottom:8px;}
.dim-card p{font-size:14px;line-height:1.75;}

/* ---------- 侧栏 ---------- */
.side-col{position:sticky;top:24px;display:flex;flex-direction:column;gap:20px;}
.panel{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:20px;
}
.panel-title{
  font-size:13px;letter-spacing:.08em;color:var(--c-text-3);
  font-weight:600;margin-bottom:14px;
}
.panel-list{display:flex;flex-direction:column;gap:2px;}
.panel-list a{
  display:flex;align-items:center;justify-content:space-between;
  height:42px;padding:0 12px;border-radius:var(--r-btn);
  font-size:14px;color:var(--c-text-2);
}
.panel-list a::after{content:"→";font-size:12px;color:var(--c-text-3);transition:transform .18s ease,color .18s ease;}
.panel-list a:hover{background:var(--c-surface-2);color:var(--c-text);}
.panel-list a:hover::after{color:var(--c-primary);transform:translateX(3px);}
.panel-list a.on{background:var(--c-surface-2);color:var(--c-text);}
.panel-list a.on::after{color:var(--c-primary);}
.mini-item{
  display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--c-line);
}
.mini-item:last-child{border-bottom:0;padding-bottom:0;}
.mini-item img{
  width:76px;height:52px;object-fit:cover;border-radius:var(--r-img);
  border:1px solid var(--c-line);flex:0 0 auto;background:var(--c-surface-2);
}
.mini-item b{
  display:block;font-size:14px;font-weight:600;color:var(--c-text);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.mini-item em{display:block;font-style:normal;font-size:12px;color:var(--c-text-3);margin-top:6px;}
.mini-item:hover b{color:var(--c-primary);}
.panel-cta{background:linear-gradient(180deg,rgba(0,217,163,.1),rgba(0,217,163,.02));border-color:rgba(0,217,163,.3);}
.panel-cta h3{font-size:16px;margin-bottom:8px;}
.panel-cta p{font-size:13px;line-height:1.7;margin-bottom:16px;}
.panel-cta .btn-nova{width:100%;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--c-line);}
.accordion-item:first-child{border-top:1px solid var(--c-line);}
.accordion-button{
  background:transparent;color:var(--c-text);font-size:16px;font-weight:600;
  padding:20px 8px 20px 18px;border-radius:0;box-shadow:none;
  transition:color .18s ease,padding .18s ease;
}
.accordion-button:not(.collapsed){
  color:var(--c-primary);background:rgba(0,217,163,.06);
  border-left:2px solid var(--c-primary);padding-left:18px;
}
.accordion-button:focus{box-shadow:none;border-color:var(--c-line);}
.accordion-button::after{display:none;}
.accordion-button::before{
  content:"+";font-size:20px;font-weight:400;line-height:1;
  color:var(--c-primary);margin-right:12px;transition:transform .18s ease;
}
.accordion-button:not(.collapsed)::before{transform:rotate(45deg);}
.accordion-body{padding:0 8px 22px 18px;font-size:15px;line-height:1.9;color:var(--c-text-2);}

/* ---------- 表单 ---------- */
.ask-box{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:32px;
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;color:var(--c-text-2);margin-bottom:8px;}
.field .hint{font-size:12px;color:var(--c-text-3);margin-top:6px;}
.form-control,.form-select{
  width:100%;height:44px;padding:0 14px;font-size:14px;
  background:var(--c-surface);color:var(--c-text);
  border:1px solid var(--c-line);border-radius:var(--r-input);
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
textarea.form-control{height:auto;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-control::placeholder{color:var(--c-text-3);}
.form-control:focus,.form-select:focus{
  background:var(--c-surface);color:var(--c-text);
  border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(0,217,163,.18);outline:none;
}
.form-select option{background:var(--c-surface);color:var(--c-text);}
.alert-ok{
  display:none;font-size:14px;color:var(--c-ok);
  background:rgba(43,217,139,.1);border:1px solid rgba(43,217,139,.35);
  border-radius:var(--r-input);padding:12px 16px;margin-bottom:18px;
}
.alert-ok.show{display:block;}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid rgba(0,217,163,.3);border-radius:var(--r-card);
  background-color:rgba(0,217,163,.08);
  padding:48px 40px;
  background-image:repeating-linear-gradient(90deg,rgba(242,245,248,.04) 0 1px,transparent 1px 40px),
                   repeating-linear-gradient(0deg,rgba(242,245,248,.04) 0 1px,transparent 1px 40px);
}
.cta-band h2{font-size:28px;max-width:640px;}
.cta-band p{margin-top:12px;font-size:16px;max-width:620px;}
.cta-band .hero-actions{margin-top:26px;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--sp-7);
  border-top:1px solid var(--c-line);
  background:var(--c-surface);
  padding:56px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:var(--sp-5);}
.footer-col h4{font-size:13px;letter-spacing:.08em;color:var(--c-text-3);font-weight:600;margin-bottom:16px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-col p{font-size:13px;line-height:1.85;color:var(--c-text-3);}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:13px;color:var(--c-text-2);}
.footer-col ul a:hover{color:var(--c-primary);}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  margin-top:40px;padding-top:22px;border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-3);
}
.to-top{color:var(--c-text-2);}
.to-top:hover{color:var(--c-primary);}

/* ---------- Bootstrap 覆盖 ---------- */
.btn{--bs-btn-border-radius:var(--r-btn);}
.card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);color:var(--c-text);}
.badge{
  background:rgba(0,217,163,.12);color:var(--c-primary);
  border:1px solid rgba(0,217,163,.3);border-radius:var(--r-badge);
  font-size:12px;letter-spacing:.5px;font-weight:600;padding:5px 10px;
}
.row{--bs-gutter-x:24px;--bs-gutter-y:24px;}

/* ---------- 响应式 ---------- */
@media (max-width:1399.98px){
  .cat-hero h1{font-size:36px;}
}
@media (max-width:1199.98px){
  :root{--side-w:72px;}
  body{padding-left:72px;}
  .app-side{width:72px;padding:0 10px 16px;align-items:stretch;}
  .app-side .logo-text{display:none;}
  .app-side .side-logo{justify-content:center;gap:0;}
  .app-side .side-title{display:none;}
  .app-side .side-link{font-size:0;justify-content:center;padding:0;gap:0;}
  .app-side .side-link::before{height:24px;}
  .app-side .side-foot{display:none;}
  .side-col{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:991.98px){
  body{padding-left:0;padding-top:56px;}
  .mobile-bar{display:flex;}
  .app-side{
    width:280px;padding:0 14px 22px;z-index:90;
    transform:translateX(-100%);transition:transform .2s ease;
  }
  .app-side.open{transform:translateX(0);}
  .app-side .logo-text{display:flex;}
  .app-side .side-logo{justify-content:flex-start;gap:10px;}
  .app-side .side-title{display:block;}
  .app-side .side-link{font-size:14px;justify-content:flex-start;padding:0 12px;height:46px;gap:10px;}
  .app-side .side-foot{display:block;}
  .cat-hero{padding:34px 24px 32px;}
  .cat-hero h1{font-size:30px;}
  .stat-bar{grid-template-columns:1fr 1fr;}
  .section{padding:48px 0;}
  .cta-band{padding:36px 24px;}
}
@media (max-width:767.98px){
  .page-wrap{padding:0 16px;}
  .cat-hero h1{font-size:26px;}
  .cat-hero .hero-sub{font-size:15px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .section-head h2{font-size:22px;}
  .stat-bar{grid-template-columns:1fr;}
  .topic{padding:18px;}
  .topic h2{font-size:19px;}
  .faq-wrap{max-width:100%;}
  .ask-box{padding:22px;}
  .cta-band h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575.98px){
  body{font-size:15px;}
  .btn-nova{width:100%;}
  .hero-actions{flex-direction:column;}
  .cat-hero{padding:28px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}