/* roulang page: index */
:root{
  --bg-0:#0B0C10;
  --bg-1:#12141B;
  --bg-2:#191C26;
  --bg-3:#222735;
  --line:#262B38;
  --line-strong:#39404F;
  --text-0:#F2F4F7;
  --text-1:#A7AEBD;
  --text-2:#6E7686;
  --brand:#A6FF3F;
  --brand-ink:#0B0C10;
  --accent:#FF3D8B;
  --accent-2:#36E2FF;
  --ok:#34D399;
  --warn:#FFC53D;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-img:12px;
  --radius-big:22px;
  --radius-pill:999px;
  --shadow-1:0 2px 8px rgba(0,0,0,.35);
  --shadow-2:0 18px 40px rgba(0,0,0,.45);
  --tr:160ms ease-out;
  --sidebar-w:248px;
  --font-sans:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-0);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color var(--tr),border-color var(--tr)}
img{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;line-height:1;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--tr),background var(--tr),border-color var(--tr),color var(--tr),filter var(--tr);
}
.btn-primary{background:var(--brand);color:var(--brand-ink)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);filter:brightness(.98)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text-0)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-ghost:active{transform:translateY(1px)}
.btn-dark{background:var(--brand-ink);color:var(--text-0)}
.btn-dark:hover{filter:brightness(1.15);transform:translateY(-1px)}
.btn-outline-dark{background:transparent;border-color:rgba(11,12,16,.4);color:var(--brand-ink)}
.btn-outline-dark:hover{border-color:var(--brand-ink);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-xs{height:36px;padding:0 14px;font-size:13px;border-radius:10px}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none}
.link-more{color:var(--accent-2);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.link-more:hover{text-decoration:underline}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--radius-pill);font-size:12px;font-weight:600;line-height:1;white-space:nowrap;
}
.badge-soft{background:var(--bg-3);color:var(--text-1)}
.badge-accent{background:var(--accent);color:#fff}
.badge-ok{background:rgba(52,211,153,.12);color:var(--ok)}
.card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;
  transition:transform var(--tr),border-color var(--tr),box-shadow var(--tr),background var(--tr);
}
.card:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-2)}

/* ---------- 侧栏 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--bg-1);border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:0 16px;z-index:60;
}
.sidebar-logo{
  height:88px;display:flex;align-items:center;gap:12px;
  margin:0 -16px;padding:0 16px;border-bottom:1px solid var(--line);
}
.logo-mark{
  width:40px;height:40px;flex:0 0 auto;border-radius:10px;background:var(--brand);
  color:var(--brand-ink);display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:800;
}
.logo-text{font-size:16px;font-weight:700;line-height:1.3;color:var(--text-0)}
.side-nav{display:flex;flex-direction:column;gap:4px;padding:20px 0;flex:1 1 auto}
.nav-item{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:10px;
  color:var(--text-1);font-size:15px;font-weight:500;
  transition:background var(--tr),color var(--tr);
}
.nav-item::before{
  content:"";width:16px;height:16px;flex:0 0 auto;border-radius:5px;
  border:1.5px solid var(--line-strong);transition:border-color var(--tr),background var(--tr);
}
.nav-item:hover{background:var(--bg-2);color:var(--text-0)}
.nav-item.active{background:var(--bg-2);color:var(--text-0);font-weight:600}
.nav-item.active::before{border-color:var(--brand);background:var(--brand)}
.nav-item.active::after{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:0 3px 3px 0;background:var(--brand);
}
.sidebar-foot{display:flex;flex-direction:column;gap:12px;padding:16px 0 20px;border-top:1px solid var(--line)}
.version-card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:16px;display:flex;flex-direction:column;gap:4px;
}
.version-label{font-size:12px;color:var(--text-2)}
.version-num{font-family:var(--font-mono);font-size:22px;font-weight:700;color:var(--brand);line-height:1.2}
.version-date{font-family:var(--font-mono);font-size:12px;color:var(--text-1);margin-bottom:8px}
.sidebar-copy{font-size:12px;color:var(--text-2);line-height:1.6}

/* ---------- 移动端顶栏 / 抽屉 ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:70;
  background:var(--bg-1);border-bottom:1px solid var(--line);
  align-items:center;gap:10px;padding:0 12px;
}
.hamburger{
  width:44px;height:44px;flex:0 0 auto;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:4px;border-radius:10px;
  transition:background var(--tr);
}
.hamburger:hover{background:var(--bg-2)}
.hamburger span{display:block;width:18px;height:2px;background:var(--text-0);border-radius:2px}
.topbar-logo{
  flex:1 1 auto;min-width:0;font-size:15px;font-weight:700;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.drawer-overlay{
  position:fixed;inset:0;background:rgba(0,0,0,.62);z-index:80;
  opacity:0;visibility:hidden;transition:opacity var(--tr),visibility var(--tr);
}
.drawer-overlay.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:280px;z-index:90;
  background:var(--bg-1);border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:0 16px;
  transform:translateX(-100%);transition:transform var(--tr);
  overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer .sidebar-logo{margin:0 -16px}
.drawer .side-nav{flex:0 0 auto}

/* ---------- 主区域 ---------- */
.main{margin-left:var(--sidebar-w);min-height:100vh;padding-bottom:120px}
.hero{
  position:relative;padding:104px 0 88px;
  background-color:var(--bg-0);
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:36px 36px;
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.hero-copy .badge{margin-bottom:20px}
.hero h1{font-size:40px;font-weight:800;line-height:1.25;letter-spacing:-.2px}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.75;color:var(--text-1);max-width:46ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.trust-row{display:flex;flex-wrap:wrap;gap:0;margin-top:40px;border-top:1px solid var(--line);padding-top:22px}
.trust-row li{display:flex;flex-direction:column;gap:2px;padding-right:36px;margin-right:36px;border-right:1px solid var(--line)}
.trust-row li:last-child{border-right:0;margin-right:0;padding-right:0}
.trust-row .mono{font-size:17px;font-weight:700;color:var(--text-0)}
.trust-row small{font-size:13px;color:var(--text-2)}
.hero-visual{
  position:relative;border-radius:var(--radius-big);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-2);aspect-ratio:4/3;background:var(--bg-1);
}
.hero-visual img{width:100%;height:100%;object-fit:cover;border-radius:0}
.hero-visual-mask{
  position:absolute;inset:0;
  background:linear-gradient(0deg,rgba(11,12,16,0) 0%,rgba(11,12,16,.55) 100%);
}
.hero-visual::after{
  content:"";position:absolute;top:0;right:0;width:96px;height:96px;
  background:var(--brand);clip-path:polygon(100% 0,100% 100%,0 0);opacity:.85;
}
.hero-visual-tag{
  position:absolute;left:20px;bottom:18px;z-index:2;
  font-size:13px;letter-spacing:.08em;color:var(--text-0);
  background:rgba(11,12,16,.6);border:1px solid var(--line-strong);
  padding:6px 10px;border-radius:8px;
}

/* ---------- 板块 ---------- */
.section{padding:96px 0}
.section-alt{
  background-color:var(--bg-1);
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:36px 36px;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head h2,.h2{
  position:relative;padding-left:16px;font-size:28px;font-weight:700;line-height:1.3;
}
.section-head h2::before,.h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:2px;background:var(--brand);
}
.section-head p{font-size:15px;color:var(--text-1);max-width:62ch;margin-top:10px}

/* ---------- 卖点 ---------- */
.feature-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:24px}
.feature-card{display:flex;flex-direction:column;gap:12px}
.feature-card-lg{grid-row:1 / span 2;justify-content:space-between;padding:32px}
.feature-grid > .feature-card:not(.feature-card-lg){grid-column:2}
.card-num{font-size:14px;color:var(--text-2);letter-spacing:.08em}
.feature-card h3{font-size:20px;font-weight:600;line-height:1.4}
.feature-card p{font-size:15px;color:var(--text-1)}
.feature-card-lg h3{font-size:24px}
.feature-card-lg p{font-size:16px}
.feature-icon{
  width:40px;height:40px;border-radius:10px;background:var(--bg-3);
  border:1px solid var(--line-strong);display:flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-size:14px;color:var(--brand);
}
.feature-lg-inner{display:flex;flex-direction:column;gap:16px}
.feature-lg-stats{display:flex;gap:28px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:20px;margin-top:24px}
.feature-lg-stats div{display:flex;flex-direction:column;gap:2px}
.feature-lg-stats .mono{font-size:20px;font-weight:700;color:var(--brand)}
.feature-lg-stats span{font-size:13px;color:var(--text-2)}

/* ---------- 场景 ---------- */
.scene-wrap{display:grid;grid-template-columns:220px 1fr;gap:32px;align-items:start}
.scene-tabs{display:flex;flex-direction:column;gap:6px}
.scene-tab{
  position:relative;text-align:left;height:52px;padding:0 14px;border-radius:10px;
  color:var(--text-1);font-size:15px;font-weight:500;
  transition:background var(--tr),color var(--tr);
}
.scene-tab:hover{background:var(--bg-2);color:var(--text-0)}
.scene-tab.active{background:var(--bg-2);color:var(--text-0);font-weight:600}
.scene-tab.active::after{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  border-radius:0 3px 3px 0;background:var(--brand);
}
.scene-panels{position:relative}
.scene-panel{display:none}
.scene-panel.active{display:block}
.scene-figure{
  position:relative;border-radius:var(--radius-big);overflow:hidden;
  border:1px solid var(--line);background:var(--bg-1);aspect-ratio:16/9;
}
.scene-figure img{width:100%;height:100%;object-fit:cover;border-radius:0}
.scene-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:24px;
  background:linear-gradient(0deg,rgba(11,12,16,.9),rgba(11,12,16,0));
  font-size:16px;font-weight:600;
}
.scene-desc{margin-top:16px;font-size:15px;color:var(--text-1);max-width:70ch}
.scene-points{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:36px}
.scene-points li{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:16px 18px;font-size:15px;color:var(--text-1);
}
.scene-points li::before{content:"◆";color:var(--brand);margin-right:8px;font-size:11px}

/* ---------- 最新信息 ---------- */
.news-feature{
  display:grid;grid-template-columns:40% 1fr;gap:0;overflow:hidden;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-card);
  transition:border-color var(--tr),transform var(--tr),box-shadow var(--tr);
}
.news-feature:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.news-feature-media{display:block;min-height:240px}
.news-feature-media img{width:100%;height:100%;object-fit:cover;border-radius:0}
.news-feature-body{padding:28px;display:flex;flex-direction:column;gap:12px;justify-content:center}
.news-feature-body h3{font-size:22px;font-weight:700;line-height:1.4}
.news-feature-body h3 a:hover{color:var(--brand)}
.news-feature-body p{font-size:15px;color:var(--text-1);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:16px;font-size:13px;color:var(--text-2);margin-top:4px}
.news-list{margin-top:8px;border-top:1px solid var(--line)}
.news-list li{border-bottom:1px solid var(--line)}
.news-item{
  display:flex;align-items:center;gap:24px;padding:16px 12px;min-height:72px;
  transition:background var(--tr);
}
.news-item:hover{background:var(--bg-2)}
.news-item-main{flex:1 1 auto;min-width:0}
.news-item-main h4{font-size:16px;font-weight:600;line-height:1.5;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.news-item-main p{font-size:14px;color:var(--text-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px}
.news-item-side{display:flex;align-items:center;gap:16px;flex:0 0 auto}
.news-item-side .mono{font-size:13px;color:var(--text-2)}
.news-item-side .arrow{color:var(--brand);font-size:16px}
.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--radius-card);
  padding:48px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:12px;
}
.empty-icon{
  width:44px;height:44px;border-radius:12px;background:var(--bg-3);border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;color:var(--text-2);font-size:20px;
}
.empty-state p{color:var(--text-1);font-size:15px}

/* ---------- 社会认同 ---------- */
.review-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.review-col{display:flex;flex-direction:column;gap:24px}
.review-col.offset{padding-top:24px}
.review-card{display:flex;flex-direction:column;gap:16px}
.review-head{display:flex;align-items:center;gap:12px}
.avatar{
  width:40px;height:40px;border-radius:50%;flex:0 0 auto;
  background:var(--bg-3);border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;font-size:15px;color:var(--brand);
}
.review-name{font-size:15px;font-weight:600}
.review-tag{font-size:12px;color:var(--text-2)}
.review-card p{font-size:15px;color:var(--text-1)}
.stat-row{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  margin-top:48px;border-top:1px solid var(--line);padding-top:32px;
}
.stat-row li{display:flex;flex-direction:column;gap:4px;padding-right:24px;border-right:1px solid var(--line)}
.stat-row li:last-child{border-right:0}
.stat-row .mono{font-size:26px;font-weight:700;color:var(--text-0);line-height:1.2}
.stat-row span{font-size:13px;color:var(--text-2)}

/* ---------- FAQ ---------- */
.faq{border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--bg-2)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding:18px 24px;font-size:16px;font-weight:600;
  cursor:pointer;list-style:none;transition:background var(--tr);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:var(--bg-3)}
.faq-item summary::after{content:"+";color:var(--brand);font-size:20px;font-weight:700;line-height:1}
.faq-item[open] summary::after{content:"−"}
.faq-body{padding:16px 24px 22px;font-size:15px;line-height:1.8;color:var(--text-1);border-top:1px solid var(--line)}

/* ---------- 收尾 CTA ---------- */
.cta-panel{
  background:var(--brand);color:var(--brand-ink);border-radius:var(--radius-big);
  padding:40px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-panel h2{font-size:26px;font-weight:800;line-height:1.3}
.cta-panel p{font-size:15px;margin-top:8px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;flex-direction:column;gap:14px}
.footer-brand .logo-row{display:flex;align-items:center;gap:12px}
.footer-brand p{font-size:13px;color:var(--text-2);line-height:1.7;max-width:32ch}
.footer-col h3{font-size:14px;font-weight:700;color:var(--text-0);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-1)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-2);
}

/* ---------- 底部转化条 ---------- */
.bottom-bar{
  position:fixed;left:var(--sidebar-w);right:0;bottom:0;z-index:50;
  background:var(--bg-1);border-top:1px solid var(--line);padding:12px 0;
  transition:transform var(--tr);
}
.bottom-bar.is-hidden{transform:translateY(120%)}
.bottom-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.bottom-text{font-size:14px;color:var(--text-1)}
.bottom-text .mono{color:var(--text-0);font-weight:700}
.bottom-actions{display:flex;align-items:center;gap:16px}
.icon-btn{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:16px;color:var(--text-2);
  transition:border-color var(--tr),color var(--tr);
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- 骨架占位 ---------- */
.skeleton{background:linear-gradient(90deg,var(--bg-1) 0%,var(--bg-3) 50%,var(--bg-1) 100%);background-size:200% 100%;animation:sk 1.4s infinite linear;border-radius:8px}
@keyframes sk{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sidebar-w:208px}
  .container{padding:0 32px}
  .hero h1{font-size:34px}
  .scene-wrap{grid-template-columns:180px 1fr;gap:24px}
}
@media (max-width:1023px){
  :root{--sidebar-w:0px}
  .sidebar{display:none}
  .topbar{display:flex}
  .main{padding-top:56px;padding-bottom:104px}
  .container{padding:0 24px}
  .hero{padding:56px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:30px}
  .section{padding:56px 0}
  .feature-grid{grid-template-columns:1fr}
  .feature-card-lg{grid-row:auto}
  .feature-grid > .feature-card:not(.feature-card-lg){grid-column:auto}
  .scene-wrap{grid-template-columns:1fr;gap:20px}
  .scene-tabs{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:4px}
  .scene-tab{height:44px;flex:0 0 auto;padding:0 16px;background:var(--bg-2);border:1px solid var(--line)}
  .scene-tab.active::after{left:12px;right:12px;top:auto;bottom:0;width:auto;height:3px;border-radius:3px 3px 0 0}
  .scene-figure figcaption{padding:18px;font-size:15px}
  .scene-points{grid-template-columns:1fr;gap:12px}
  .news-feature{grid-template-columns:1fr}
  .news-feature-media{min-height:190px;aspect-ratio:16/9}
  .review-grid{grid-template-columns:1fr}
  .review-col.offset{padding-top:0}
  .stat-row{grid-template-columns:repeat(2,1fr);gap:24px 0}
  .stat-row li:nth-child(2){border-right:0}
  .stat-row li{padding-left:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-panel{padding:28px}
  .bottom-bar{padding-bottom:calc(12px + env(safe-area-inset-bottom))}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .hero h1{font-size:27px}
  .card{padding:18px}
  .feature-card-lg{padding:22px}
  .hero-visual{aspect-ratio:16/10}
  .stat-row .mono{font-size:22px}
  .news-item{flex-direction:column;align-items:flex-start;gap:8px}
  .news-item-side{width:100%;justify-content:space-between}
  .news-item-main h4,.news-item-main p{white-space:normal}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .bottom-bar-inner{gap:12px}
  .bottom-actions{width:100%;justify-content:space-between}
}
@media (max-width:480px){
  .hero h1{font-size:26px}
  body{font-size:15px}
  .hero-actions .btn{width:100%}
  .btn{height:44px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .trust-row li{padding-right:20px;margin-right:20px}
}

/* roulang page: article */
:root{
  --bg-0:#0B0C10;
  --bg-1:#12141B;
  --bg-2:#191C26;
  --bg-3:#222735;
  --line:#262B38;
  --line-strong:#39404F;
  --text-0:#F2F4F7;
  --text-1:#A7AEBD;
  --text-2:#6E7686;
  --brand:#A6FF3F;
  --brand-ink:#0B0C10;
  --accent:#FF3D8B;
  --accent-2:#36E2FF;
  --ok:#34D399;
  --warn:#FFC53D;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-badge:999px;
  --radius-input:12px;
  --radius-img:12px;
  --radius-lg:22px;
  --shadow-1:0 2px 8px rgba(0,0,0,.35);
  --shadow-2:0 18px 40px rgba(0,0,0,.45);
  --t:160ms ease-out;
  --font-sans:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-0);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover;}
a{color:var(--accent-2);text-decoration:none;transition:color var(--t),opacity var(--t);}
a:hover{color:var(--brand);}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1{font-size:40px;line-height:1.25;font-weight:800;letter-spacing:-.01em;}
h2{font-size:28px;line-height:1.3;font-weight:700;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}

/* ===== 布局骨架 ===== */
.app-shell{display:flex;min-height:100vh;}
.sidebar{
  width:248px;flex:0 0 248px;
  position:fixed;top:0;left:0;bottom:0;
  background:var(--bg-1);
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:0 16px 18px;
  z-index:60;
}
.sidebar-head{
  height:88px;display:flex;align-items:center;gap:10px;
  border-bottom:1px solid var(--line);
  margin:0 -16px 14px;padding:0 16px;
}
.logo-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:10px;
  background:var(--brand);color:var(--brand-ink);
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:18px;
}
.logo-text{font-size:16px;font-weight:700;line-height:1.3;color:var(--text-0);}
.side-nav{display:flex;flex-direction:column;gap:4px;}
.nav-item{
  display:flex;align-items:center;min-height:44px;padding:0 12px;
  border-radius:10px;color:var(--text-1);font-size:15px;font-weight:500;
  border-left:3px solid transparent;
  transition:background var(--t),color var(--t),border-color var(--t);
}
.nav-item:hover{background:var(--bg-2);color:var(--text-0);}
.nav-item.active{
  background:var(--bg-2);color:var(--text-0);
  border-left:3px solid var(--brand);font-weight:600;
}
.side-version{
  margin-top:auto;background:var(--bg-2);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:16px;
}
.side-version .ver-label{font-size:13px;color:var(--text-1);}
.side-version .ver-num{
  font-family:var(--font-mono);font-size:20px;font-weight:700;color:var(--text-0);
  margin:6px 0 2px;letter-spacing:.02em;
}
.side-version .ver-meta{font-size:13px;color:var(--text-2);font-family:var(--font-mono);}
.side-version .btn{margin-top:14px;width:100%;}
.sidebar-foot{
  font-size:12px;color:var(--text-2);text-align:center;padding-top:14px;line-height:1.6;
}
.main-area{flex:1 1 auto;margin-left:248px;display:flex;flex-direction:column;min-width:0;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px;}

/* ===== 移动端顶栏与抽屉 ===== */
.topbar{
  display:none;height:56px;align-items:center;gap:12px;
  padding:0 16px;background:var(--bg-1);border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:70;
}
.hamburger{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  display:flex;flex-direction:column;justify-content:center;align-items:center;gap:4px;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--text-0);border-radius:2px;}
.topbar-logo{
  flex:1 1 auto;min-width:0;font-size:15px;font-weight:700;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text-0);
}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:280px;background:var(--bg-1);
  border-right:1px solid var(--line);z-index:90;
  transform:translateX(-102%);transition:transform var(--t);
  padding:0 16px 18px;display:flex;flex-direction:column;
}
.drawer.open{transform:translateX(0);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.62);z-index:80;
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);
}
.drawer-mask.open{opacity:1;visibility:visible;}

/* ===== 按钮 / 徽章 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  transition:transform var(--t),background var(--t),color var(--t),border-color var(--t),box-shadow var(--t),opacity var(--t);
}
.btn-primary{background:var(--brand);color:var(--brand-ink);box-shadow:var(--shadow-1);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);color:var(--brand-ink);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:transparent;border:1px solid var(--line-strong);color:var(--text-0);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
.btn-link{color:var(--accent-2);font-weight:600;height:auto;padding:0;}
.btn-link:hover{color:var(--brand);text-decoration:underline;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;}
.btn-mini{height:36px;padding:0 14px;font-size:14px;border-radius:10px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;
  border-radius:var(--radius-badge);font-size:12px;font-weight:600;
  background:var(--bg-3);color:var(--text-1);white-space:nowrap;
}
.badge-new{background:var(--accent);color:#fff;}
.badge-ok{background:rgba(52,211,153,.12);color:var(--ok);}
.badge-warn{background:rgba(255,197,61,.12);color:var(--warn);}

/* ===== 面包屑 ===== */
.crumb-wrap{padding:34px 0 0;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-1);}
.breadcrumb a{color:var(--text-1);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--text-2);}
.breadcrumb .current{color:var(--text-1);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ===== 文章头 ===== */
.article-hero{padding:20px 0 28px;border-bottom:1px solid var(--line);}
.article-hero h1{margin:14px 0 16px;max-width:900px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;font-size:13px;color:var(--text-1);}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px;}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong);}
.cover-figure{margin:28px 0 0;}
.cover-figure img{
  width:100%;aspect-ratio:16/7;border-radius:var(--radius-lg);
  border:1px solid var(--line);background:var(--bg-1);
}
.cover-figure figcaption{font-size:13px;color:var(--text-2);margin-top:10px;}

/* ===== 正文布局 ===== */
.article-layout{
  display:grid;grid-template-columns:minmax(0,760px) 220px;
  gap:56px;align-items:start;padding:44px 0 0;
}
.article-body{font-size:16px;line-height:1.85;color:var(--text-1);}
.article-body p{margin:0 0 1.25em;}
.article-body h2{
  font-size:28px;line-height:1.3;color:var(--text-0);font-weight:700;
  margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--brand);
}
.article-body h3{font-size:20px;line-height:1.4;color:var(--text-0);margin:28px 0 12px;}
.article-body a{color:var(--accent-2);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--brand);}
.article-body strong{color:var(--text-0);}
.article-body ul,.article-body ol{margin:0 0 1.25em;padding-left:2px;}
.article-body ul li{position:relative;padding-left:20px;margin:8px 0;}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;
  border-radius:1px;background:var(--brand);
}
.article-body ol{list-style:decimal;padding-left:22px;}
.article-body ol li{margin:8px 0;}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;background:var(--bg-1);
  border-left:3px solid var(--brand);border-radius:0 var(--radius-card) var(--radius-card) 0;
  color:var(--text-1);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body code{
  font-family:var(--font-mono);font-size:14px;background:var(--bg-2);
  border:1px solid var(--line);border-radius:6px;padding:2px 6px;color:var(--text-0);
}
.article-body pre{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px;overflow-x:auto;margin:0 0 1.25em;
}
.article-body pre code{background:none;border:0;padding:0;color:var(--text-0);}
.article-body table{
  width:100%;display:block;overflow-x:auto;border-collapse:collapse;
  margin:0 0 1.4em;font-size:15px;border:1px solid var(--line);border-radius:var(--radius-card);
}
.article-body th,.article-body td{
  padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap;
}
.article-body th{color:var(--text-0);font-weight:600;background:var(--bg-1);}
.article-body tbody tr:nth-child(odd){background:var(--bg-1);}
.article-body tbody tr:nth-child(even){background:transparent;}
.article-body img{border-radius:var(--radius-img);margin:18px 0 8px;background:var(--bg-1);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

/* ===== 侧栏目录 ===== */
.toc-card{
  position:sticky;top:24px;background:var(--bg-2);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:20px;
}
.toc-card h3{font-size:15px;color:var(--text-0);margin-bottom:12px;}
.toc-card ul{display:flex;flex-direction:column;gap:2px;}
.toc-card li a{
  display:block;font-size:14px;color:var(--text-1);padding:8px 10px;
  border-left:3px solid transparent;border-radius:8px;
}
.toc-card li a:hover{background:var(--bg-3);color:var(--text-0);}
.toc-card li a.on{border-left:3px solid var(--brand);color:var(--text-0);background:var(--bg-3);}
.toc-toggle{display:none;}

/* ===== 空态 ===== */
.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--radius-card);
  padding:48px 24px;text-align:center;background:var(--bg-1);
}
.empty-state .icon{font-size:26px;color:var(--text-2);line-height:1;}
.empty-state p{margin:14px 0 16px;color:var(--text-1);font-size:15px;}

/* ===== 相关推荐 ===== */
.related{padding:64px 0 0;border-top:1px solid var(--line);margin-top:56px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;}
.section-head h2{border-left:4px solid var(--brand);padding-left:14px;}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;transition:transform var(--t),border-color var(--t),box-shadow var(--t);
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-2px);border-color:var(--brand);box-shadow:var(--shadow-2);}
.card .cover{border-radius:var(--radius-img);overflow:hidden;margin:-24px -24px 18px;background:var(--bg-1);}
.card .cover img{width:100%;aspect-ratio:16/9;}
.card h3{margin:12px 0 10px;color:var(--text-0);}
.card p{font-size:14px;color:var(--text-1);margin-bottom:16px;}
.card .meta{margin-top:auto;font-size:13px;color:var(--text-2);font-family:var(--font-mono);}
.rel-nav{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  margin:40px 0 0;padding:20px 24px;background:var(--bg-1);
  border:1px solid var(--line);border-radius:var(--radius-card);
}
.rel-nav .links{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:14px;}

/* ===== 底部转化条 ===== */
.cta-bar{
  position:sticky;bottom:0;z-index:50;margin-top:48px;
  background:var(--bg-1);border-top:1px solid var(--line);
  transition:transform var(--t),opacity var(--t);
}
.cta-bar.is-hidden,.cta-bar.at-bottom{transform:translateY(110%);opacity:0;pointer-events:none;}
.cta-inner{
  display:flex;align-items:center;gap:16px;padding:12px 40px;
  max-width:1200px;margin:0 auto;
}
.cta-text{font-size:15px;color:var(--text-0);flex:1 1 auto;min-width:0;}
.cta-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  color:var(--text-1);font-size:16px;line-height:1;
  display:flex;align-items:center;justify-content:center;
}
.cta-close:hover{color:var(--text-0);border-color:var(--line-strong);}

/* ===== 页脚 ===== */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);margin-top:56px;padding-top:56px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;}
.logo-row{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand p{font-size:14px;color:var(--text-1);max-width:300px;margin-bottom:16px;}
.footer-col h3{font-size:15px;color:var(--text-0);margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li a,.footer-col li span{font-size:14px;color:var(--text-1);}
.footer-col li a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid var(--line);padding-top:20px;padding-bottom:26px;
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
}
.footer-bottom p{font-size:13px;color:var(--text-2);}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .sidebar{width:208px;flex-basis:208px;}
  .main-area{margin-left:208px;}
  .logo-text{font-size:14px;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .toc-card{position:static;display:none;}
  .toc-card.open{display:block;}
  .toc-toggle{
    display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 16px;
    border:1px solid var(--line-strong);border-radius:var(--radius-btn);
    font-size:14px;color:var(--text-0);background:var(--bg-2);margin-bottom:20px;
  }
  .toc-toggle:hover{border-color:var(--brand);color:var(--brand);}
  .container{padding:0 28px;}
  .cta-inner{padding:12px 28px;}
}
@media (max-width:1023px){
  .sidebar{display:none;}
  .main-area{margin-left:0;}
  .topbar{display:flex;}
  h1{font-size:28px;}
  h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .rel-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  body{font-size:15px;}
  .container{padding:0 16px;}
  .crumb-wrap{padding-top:22px;}
  .article-layout{padding-top:28px;}
  .article-hero h1{margin:12px 0 14px;}
  .article-body h2{font-size:22px;margin-top:32px;}
  .card{padding:18px;}
  .card .cover{margin:-18px -18px 14px;}
  .rel-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:28px;}
  .cta-bar{height:auto;}
  .cta-inner{flex-wrap:wrap;gap:10px;padding:12px 16px calc(12px + env(safe-area-inset-bottom));}
  .cta-text{flex-basis:100%;font-size:14px;}
  .cta-inner .btn{flex:1 1 auto;}
}
@media (max-width:520px){
  h1{font-size:26px;}
  .article-body{font-size:15px;}
  .article-meta{font-size:12px;gap:8px 14px;}
  .breadcrumb .current{max-width:180px;}
  .rel-nav{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
/* ============ 设计令牌 ============ */
:root{
  --bg-0:#0B0C10;
  --bg-1:#12141B;
  --bg-2:#191C26;
  --bg-3:#222735;
  --line:#262B38;
  --line-strong:#39404F;
  --text-0:#F2F4F7;
  --text-1:#A7AEBD;
  --text-2:#6E7686;
  --brand:#A6FF3F;
  --brand-ink:#0B0C10;
  --accent:#FF3D8B;
  --accent-2:#36E2FF;
  --ok:#34D399;
  --warn:#FFC53D;

  --shadow-1:0 2px 8px rgba(0,0,0,.35);
  --shadow-2:0 18px 40px rgba(0,0,0,.45);

  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --r-input:12px;
  --r-img:12px;
  --r-big:22px;

  --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;

  --ease:160ms ease-out;
  --sidebar-w:248px;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-0);
  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(--accent-2);text-decoration:none;transition:color var(--ease),border-color var(--ease),opacity var(--ease);}
a:hover{color:var(--brand);}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;}
p{margin:0;}
h1{font-size:40px;line-height:1.25;font-weight:800;}
h2{font-size:28px;line-height:1.3;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
:focus{outline:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
::selection{background:var(--brand);color:var(--brand-ink);}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}

/* ============ 容器 ============ */
.container{max-width:1200px;margin:0 auto;padding:0 40px;}

/* 细网格底纹 */
.grid-bg{
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:44px 44px;
}

/* ============ 左侧 App Shell 导航 ============ */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:var(--sidebar-w);
  background:var(--bg-1);
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:0 16px 20px;
  z-index:60;
  overflow-y:auto;
}
.logo-row{
  display:flex;align-items:center;gap:12px;
  height:88px;flex:0 0 88px;
  padding:0 8px;
}
.logo-mark{
  width:40px;height:40px;flex:0 0 40px;
  border-radius:10px;
  background:var(--brand);color:var(--brand-ink);
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:18px;
}
.logo-text{
  font-size:16px;font-weight:700;color:var(--text-0);
  line-height:1.25;
  word-break:break-word;
}
.side-nav{display:flex;flex-direction:column;gap:4px;margin-top:8px;}
.nav-item{
  position:relative;
  display:flex;align-items:center;
  min-height:44px;padding:0 12px 0 14px;
  border-radius:10px;
  color:var(--text-1);
  font-size:15px;font-weight:500;
  transition:background var(--ease),color var(--ease);
}
.nav-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) scaleY(0);
  width:3px;height:22px;border-radius:2px;background:var(--brand);
  transition:transform var(--ease);
}
.nav-item:hover{background:var(--bg-2);color:var(--text-0);}
.nav-item.active{background:var(--bg-2);color:var(--text-0);font-weight:700;}
.nav-item.active::before{transform:translateY(-50%) scaleY(1);}
.side-version{
  margin-top:auto;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:16px;
}
.side-version .sv-title{font-size:13px;color:var(--text-2);letter-spacing:.06em;}
.side-version .sv-num{font-size:24px;font-weight:700;margin:6px 0 2px;color:var(--brand);}
.side-version .sv-date{font-size:13px;color:var(--text-1);margin-bottom:14px;}
.side-copy{font-size:12px;color:var(--text-2);margin-top:14px;padding:0 4px;line-height:1.6;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:700;
  border:1px solid transparent;
  transition:transform var(--ease),background var(--ease),border-color var(--ease),color var(--ease),box-shadow var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:var(--brand-ink);}
.btn-primary:hover{background:#b4ff5c;transform:translateY(-1px);color:var(--brand-ink);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text-0);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
.btn-dark{background:var(--bg-0);color:var(--brand);border-color:var(--bg-0);}
.btn-dark:hover{background:#000;color:var(--brand);transform:translateY(-1px);}
.btn-outline-ink{background:transparent;border-color:rgba(11,12,16,.5);color:var(--brand-ink);}
.btn-outline-ink:hover{background:rgba(11,12,16,.08);color:var(--brand-ink);}
.btn-sm{height:44px;padding:0 18px;font-size:14px;}
.btn-xs{height:38px;padding:0 14px;font-size:13px;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;}

.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--accent-2);font-size:14px;font-weight:600;
}
.text-link:hover{color:var(--brand);text-decoration:underline;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;
  border-radius:var(--r-pill);
  font-size:12px;font-weight:600;
  background:var(--bg-3);color:var(--text-1);
  white-space:nowrap;
}
.badge-new{background:var(--accent);color:#fff;}
.badge-ok{background:rgba(52,211,153,.12);color:var(--ok);}
.badge-warn{background:rgba(255,197,61,.12);color:var(--warn);}

/* ============ 移动端顶部栏 & 抽屉 ============ */
.mob-bar{
  display:none;
  position:fixed;left:0;right:0;top:0;height:56px;
  background:var(--bg-1);border-bottom:1px solid var(--line);
  align-items:center;gap:10px;padding:0 12px;z-index:70;
}
.hamburger{
  width:44px;height:44px;flex:0 0 44px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  border-radius:10px;
}
.hamburger span{display:block;width:20px;height:2px;background:var(--text-0);border-radius:2px;transition:transform var(--ease),opacity var(--ease);}
.hamburger:hover{background:var(--bg-2);}
.mob-logo{
  flex:1 1 auto;min-width:0;
  font-size:15px;font-weight:700;color:var(--text-0);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.drawer-mask{
  display:none;position:fixed;inset:0;background:rgba(0,0,0,.62);z-index:65;
}
.drawer-mask.show{display:block;}

/* ============ 主内容区 ============ */
.main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;padding-bottom:88px;}

/* ============ 页面头 ============ */
.page-head{padding:48px 0 0;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-1);
}
.crumb a{color:var(--text-1);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:var(--text-2);}
.crumb .now{color:var(--text-0);}
.page-head h1{margin-top:20px;max-width:820px;}
.page-lead{margin-top:16px;max-width:760px;color:var(--text-1);font-size:16px;}
.anchor-tabs{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:26px;padding-top:20px;border-top:1px solid var(--line);
}
.anchor-tab{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;
  border-radius:var(--r-pill);
  font-size:14px;font-weight:600;color:var(--text-1);
  border:1px solid var(--line);
  transition:border-color var(--ease),color var(--ease),background var(--ease);
}
.anchor-tab:hover{border-color:var(--brand);color:var(--brand);}
.anchor-tab.active{
  color:var(--brand);border-color:transparent;background:transparent;
  box-shadow:inset 0 -2px 0 0 var(--brand);border-radius:6px;
}

/* ============ 板块通用 ============ */
.section{padding:72px 0 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:28px;
}
.section-head h2{display:flex;align-items:center;gap:12px;}
.section-head h2::before{
  content:"";width:4px;height:24px;border-radius:2px;background:var(--brand);flex:0 0 4px;
}
.section-sub{color:var(--text-1);font-size:14px;margin-top:8px;}

/* ============ 清单一栏 + 粘性摘要卡 ============ */
.layout-two{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:40px;
  align-items:start;
}
.doc-list{
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
}
.doc-item{
  display:grid;
  grid-template-columns:64px minmax(0,1fr);
  gap:8px;
  padding:26px 24px;
  border-bottom:1px solid var(--line);
  transition:background var(--ease);
}
.doc-item:last-child{border-bottom:0;}
.doc-item:hover{background:var(--bg-2);}
.doc-num{
  font-family:var(--font-mono);
  font-size:15px;font-weight:600;color:var(--text-2);
  padding-top:2px;
}
.doc-body h3{font-size:19px;margin-bottom:8px;}
.doc-body p{color:var(--text-1);font-size:15px;line-height:1.8;}
.doc-body .text-link{margin-top:12px;}

.summary-card{
  position:sticky;top:32px;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--shadow-1);
}
.summary-card .sc-label{font-size:13px;color:var(--text-2);letter-spacing:.06em;}
.summary-card .sc-ver{
  font-family:var(--font-mono);font-size:30px;font-weight:700;color:var(--brand);
  margin:6px 0 4px;letter-spacing:-.01em;
}
.sc-meta{
  display:flex;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-1);
  padding:10px 0;border-bottom:1px solid var(--line);
}
.sc-meta span:last-child{font-family:var(--font-mono);color:var(--text-0);}
.sc-points{margin-top:18px;display:flex;flex-direction:column;gap:12px;}
.sc-points li{
  position:relative;padding-left:18px;
  font-size:14px;color:var(--text-1);line-height:1.7;
}
.sc-points li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;background:var(--brand);border-radius:2px;
}
.summary-card .btn{width:100%;margin-top:22px;}

/* ============ 横幅图卡 ============ */
.banner-card{
  position:relative;
  margin-top:56px;
  border-radius:var(--r-big);
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:16/9;
  background:var(--bg-1);
}
.banner-card img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.banner-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,12,16,.05) 35%,rgba(11,12,16,.78) 100%);
}
.banner-cap{
  position:absolute;left:32px;right:32px;bottom:28px;z-index:2;
}
.banner-cap p{
  font-size:22px;font-weight:700;color:var(--text-0);letter-spacing:.01em;
}
.banner-cap .badge{margin-bottom:12px;}
.cut-corner::before{
  content:"";position:absolute;top:0;right:0;width:64px;height:64px;
  background:var(--brand);opacity:.92;z-index:3;
  clip-path:polygon(100% 0,0 0,100% 100%);
}

/* ============ 指标卡 ============ */
.metric-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;
}
.metric-card{
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px;
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.metric-card:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.metric-card .m-idx{
  font-family:var(--font-mono);font-size:13px;color:var(--text-2);letter-spacing:.08em;
}
.metric-card .m-val{
  font-family:var(--font-mono);font-size:24px;font-weight:700;color:var(--text-0);
  margin:12px 0 6px;
}
.metric-card .m-label{font-size:13px;color:var(--text-1);line-height:1.6;}

/* ============ 注意事项问答 ============ */
.notice-wrap{
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
}
.notice-row{
  display:grid;grid-template-columns:30% minmax(0,1fr);
  gap:28px;
  padding:26px 28px;
  border-bottom:1px solid var(--line);
  transition:background var(--ease);
}
.notice-row:last-child{border-bottom:0;}
.notice-row:hover{background:var(--bg-2);}
.notice-q{
  font-size:17px;font-weight:600;color:var(--text-0);line-height:1.5;
}
.notice-a{font-size:15px;color:var(--text-1);line-height:1.8;}

/* ============ 收尾 CTA ============ */
.cta-panel{
  margin-top:72px;
  background:var(--brand);
  border-radius:var(--r-big);
  padding:36px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-panel h2{color:var(--brand-ink);font-size:26px;}
.cta-panel p{color:rgba(11,12,16,.78);font-size:15px;margin-top:8px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:88px;
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding-top:56px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:36px;
}
.footer-brand .logo-row{height:auto;padding:0;margin-bottom:16px;}
.footer-brand p{color:var(--text-1);font-size:14px;max-width:320px;margin-bottom:16px;}
.footer-col h3{
  font-size:14px;color:var(--text-0);font-weight:700;
  letter-spacing:.06em;margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-1);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:44px;padding:20px 40px 28px;
  border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--text-2);}

/* ============ 底部固定转化条 ============ */
.sticky-bar{
  position:fixed;left:var(--sidebar-w);right:0;bottom:0;z-index:55;
  background:var(--bg-1);
  border-top:1px solid var(--line);
  transition:transform 200ms ease-out;
}
.sticky-bar.hidden{transform:translateY(120%);}
.sticky-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding-top:12px;padding-bottom:12px;
}
.sticky-text{font-size:14px;color:var(--text-1);}
.sticky-text strong{color:var(--text-0);font-weight:600;}
.sticky-actions{display:flex;align-items:center;gap:14px;}
.sticky-close{
  width:44px;height:44px;flex:0 0 44px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  color:var(--text-2);font-size:20px;line-height:1;
  transition:background var(--ease),color var(--ease);
}
.sticky-close:hover{background:var(--bg-3);color:var(--text-0);}

/* ============ 断点 1280 / 1024 ============ */
@media (max-width:1279px){
  :root{--sidebar-w:208px;}
  .container{padding:0 32px;}
  .footer-bottom{padding:20px 32px 28px;}
  .layout-two{grid-template-columns:minmax(0,1fr) 280px;gap:28px;}
  h1{font-size:34px;}
}

@media (max-width:1023px){
  h1{font-size:30px;}
  .mob-bar{display:flex;}
  .sidebar{
    width:280px;
    transform:translateX(-100%);
    transition:transform 220ms ease-out;
    box-shadow:var(--shadow-2);
  }
  .sidebar.open{transform:translateX(0);}
  .main{margin-left:0;padding-top:56px;padding-bottom:96px;}
  .sticky-bar{left:0;}
  .page-head{padding-top:32px;}
  .layout-two{grid-template-columns:minmax(0,1fr);gap:24px;}
  .summary-card{position:static;order:-1;}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .notice-row{grid-template-columns:1fr;gap:10px;}
  .cta-panel{padding:28px;}
  .sticky-text{display:none;}
  .sticky-inner{justify-content:flex-end;padding-left:16px;padding-right:16px;}
}

@media (max-width:767px){
  .container{padding:0 16px;}
  .footer-bottom{padding:18px 16px 26px;}
  h1{font-size:26px;}
  h2{font-size:22px;}
  h3{font-size:18px;}
  .section{padding-top:52px;}
  .doc-item{grid-template-columns:44px minmax(0,1fr);padding:22px 18px;}
  .banner-cap{left:18px;right:18px;bottom:18px;}
  .banner-cap p{font-size:17px;}
  .cta-panel{margin-top:52px;padding:24px 20px;border-radius:16px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .sticky-bar{padding-bottom:env(safe-area-inset-bottom);}
  .sticky-actions{gap:10px;}
  .sticky-actions .btn-sm{height:44px;}
}

@media (max-width:480px){
  h1{font-size:26px;}
  body{font-size:15px;}
  .metric-grid{grid-template-columns:1fr;}
  .btn{height:44px;padding:0 18px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
}

/* roulang page: category2 */
:root{
  --bg-0:#0B0C10;
  --bg-1:#12141B;
  --bg-2:#191C26;
  --bg-3:#222735;
  --line:#262B38;
  --line-strong:#39404F;
  --text-0:#F2F4F7;
  --text-1:#A7AEBD;
  --text-2:#6E7686;
  --brand:#A6FF3F;
  --brand-ink:#0B0C10;
  --accent:#FF3D8B;
  --accent-2:#36E2FF;
  --ok:#34D399;
  --warn:#FFC53D;
  --shadow-1:0 2px 8px rgba(0,0,0,.35);
  --shadow-2:0 18px 40px rgba(0,0,0,.45);
  --r-card:16px;
  --r-btn:12px;
  --r-img:12px;
  --r-lg:22px;
  --r-pill:999px;
  --sidebar-w:248px;
  --ease:160ms ease-out;
  --mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-0);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--accent-2);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--brand)}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1{font-size:40px;line-height:1.25;font-weight:800}
h2{font-size:28px;line-height:1.3;font-weight:700}
h3{font-size:20px;line-height:1.4;font-weight:600}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:rgba(166,255,63,.28)}

/* ---------- 侧栏 Shell ---------- */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:var(--bg-1);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  z-index:80;
  transition:transform var(--ease);
}
.brand-block{
  display:flex;
  align-items:center;
  gap:10px;
  height:88px;
  padding:0 20px;
  border-bottom:1px solid var(--line);
  flex:0 0 auto;
}
.logo-mark{
  width:40px;height:40px;
  border-radius:10px;
  background:var(--brand);
  color:var(--brand-ink);
  font-weight:800;
  font-size:18px;
  display:grid;
  place-items:center;
  flex:0 0 auto;
}
.logo-text{
  font-size:16px;
  font-weight:700;
  line-height:1.25;
  color:var(--text-0);
}
.side-nav{
  display:flex;
  flex-direction:column;
  gap:4px;
  padding:16px 12px;
  flex:1 1 auto;
  overflow-y:auto;
}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  height:44px;
  padding:0 12px 0 16px;
  border-radius:10px;
  color:var(--text-1);
  font-size:15px;
  transition:background var(--ease),color var(--ease);
}
.nav-item:hover{background:var(--bg-2);color:var(--text-0)}
.nav-item.active{background:var(--bg-2);color:var(--text-0);font-weight:600}
.nav-item.active::before{
  content:"";
  position:absolute;
  left:0;top:10px;bottom:10px;
  width:3px;
  border-radius:2px;
  background:var(--brand);
}
.version-widget{
  margin:0 12px 12px;
  padding:16px;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
}
.version-widget .vw-label{
  font-size:13px;
  color:var(--text-2);
  letter-spacing:.04em;
}
.version-widget .vw-num{
  font-family:var(--mono);
  font-size:20px;
  font-weight:700;
  color:var(--brand);
  margin:6px 0 2px;
  letter-spacing:.02em;
}
.version-widget .vw-date{
  font-family:var(--mono);
  font-size:13px;
  color:var(--text-1);
  margin-bottom:14px;
}
.side-copy{
  padding:0 20px 20px;
  font-size:13px;
  line-height:1.6;
  color:var(--text-2);
  flex:0 0 auto;
}

/* ---------- 顶部移动栏 ---------- */
.mobile-bar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:56px;
  align-items:center;
  gap:10px;
  padding:0 12px;
  background:var(--bg-1);
  border-bottom:1px solid var(--line);
  z-index:90;
}
.menu-btn{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:10px;
  border:1px solid var(--line);
  flex:0 0 auto;
}
.menu-btn span{
  display:block;
  width:18px;height:2px;
  background:var(--text-0);
  border-radius:2px;
  position:relative;
}
.menu-btn span::before,.menu-btn span::after{
  content:"";
  position:absolute;left:0;
  width:18px;height:2px;
  background:var(--text-0);
  border-radius:2px;
}
.menu-btn span::before{top:-6px}
.menu-btn span::after{top:6px}
.mobile-title{
  flex:1 1 auto;
  min-width:0;
  font-size:15px;
  font-weight:700;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.overlay{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.62);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--ease),visibility var(--ease);
  z-index:75;
}
.overlay.show{opacity:1;visibility:visible}

/* ---------- 主区域 ---------- */
.shell{
  margin-left:var(--sidebar-w);
  min-height:100vh;
  display:flex;
  flex-direction:column;
  padding-bottom:92px;
}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 40px;
}

/* ---------- 页面头 ---------- */
.page-head{
  padding:56px 0 44px;
  border-bottom:1px solid var(--line);
  text-align:center;
}
.crumbs{
  display:flex;
  justify-content:center;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-1);
}
.crumbs a{color:var(--text-1)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:var(--text-2)}
.page-head h1{
  margin:18px auto 16px;
  max-width:860px;
}
.page-head .lead{
  max-width:760px;
  margin:0 auto;
  font-size:16px;
  color:var(--text-1);
  line-height:1.8;
}
.head-rule{
  width:64px;height:3px;
  background:var(--brand);
  border-radius:2px;
  margin:26px auto 0;
}
.filter-row{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:10px;
  margin-top:30px;
}
.pill{
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 18px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--bg-2);
  color:var(--text-1);
  font-size:14px;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
  min-height:44px;
}
.pill:hover{border-color:var(--brand);color:var(--brand);background:var(--bg-3)}
.pill.active{
  background:var(--brand);
  border-color:var(--brand);
  color:var(--brand-ink);
  font-weight:700;
}
.pill.active:hover{color:var(--brand-ink)}

/* ---------- 区块 ---------- */
.section{padding:72px 0}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
  flex-wrap:wrap;
}
.section-head h2{
  position:relative;
  padding-left:16px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:4px;
  border-radius:2px;
  background:var(--brand);
}
.section-head .section-note{
  font-size:14px;
  color:var(--text-1);
  max-width:520px;
}
.textlink{
  font-size:14px;
  color:var(--accent-2);
  white-space:nowrap;
}
.textlink:hover{color:var(--brand);text-decoration:underline}

/* ---------- 卡片网格 ---------- */
.card-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.doc-card{
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  scroll-margin-top:80px;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.doc-card:hover{
  transform:translateY(-2px);
  border-color:var(--brand);
  box-shadow:var(--shadow-2);
}
.doc-card .thumb{
  aspect-ratio:16/9;
  background:var(--bg-1);
  overflow:hidden;
}
.doc-card .thumb img{
  width:100%;height:100%;
  object-fit:cover;
  border-radius:0;
  transition:transform .3s ease-out;
}
.doc-card:hover .thumb img{transform:scale(1.03)}
.doc-card .body{
  padding:24px;
  display:flex;
  flex-direction:column;
  gap:12px;
  flex:1 1 auto;
}
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 12px;
  border-radius:var(--r-pill);
  font-size:13px;
  font-weight:600;
  white-space:nowrap;
}
.badge-cat{background:var(--bg-3);color:var(--text-1);font-weight:500}
.badge-new{background:var(--accent);color:#fff}
.badge-ok{background:rgba(52,211,153,.12);color:var(--ok)}
.badge-warn{background:rgba(255,197,61,.12);color:var(--warn)}
.doc-card h3{font-size:20px;color:var(--text-0)}
.doc-card .desc{
  font-size:15px;
  color:var(--text-1);
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.doc-card .meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-family:var(--mono);
  font-size:13px;
  color:var(--text-2);
  margin-top:auto;
}
.doc-card .meta .go{
  font-family:-apple-system,"PingFang SC",sans-serif;
  color:var(--accent-2);
}
.doc-card:hover .meta .go{color:var(--brand)}

/* ---------- 快速入口条 ---------- */
.quick-enter{
  margin-top:56px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
}
.qe-item{
  padding:26px 24px;
  border-right:1px solid var(--line);
  transition:background var(--ease);
  display:flex;
  flex-direction:column;
  gap:8px;
}
.qe-item:last-child{border-right:0}
.qe-item:hover{background:var(--bg-2)}
.qe-num{
  font-family:var(--mono);
  font-size:14px;
  color:var(--text-2);
  letter-spacing:.08em;
}
.qe-item h3{
  font-size:17px;
  color:var(--text-0);
}
.qe-item p{
  font-size:14px;
  color:var(--text-1);
  line-height:1.7;
}
.qe-item .textlink{margin-top:4px}

/* ---------- 注意事项双栏 ---------- */
.check-list{
  display:grid;
  grid-template-columns:1fr;
  border-top:1px solid var(--line);
}
.check-row{
  display:grid;
  grid-template-columns:30% 70%;
  gap:24px;
  padding:24px 0;
  border-bottom:1px solid var(--line);
}
.check-row .q{
  font-size:16px;
  font-weight:600;
  color:var(--text-0);
}
.check-row .a{
  font-size:15px;
  color:var(--text-1);
  line-height:1.8;
}

/* ---------- FAQ ---------- */
.faq-cards{
  display:grid;
  gap:16px;
}
.faq-card{
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:border-color var(--ease);
}
.faq-card:hover{border-color:var(--line-strong)}
.faq-card.open{border-color:var(--line-strong)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  min-height:64px;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--text-0);
}
.faq-sign{
  flex:0 0 auto;
  width:24px;height:24px;
  display:grid;place-items:center;
  color:var(--brand);
  font-size:20px;
  line-height:1;
  font-family:var(--mono);
}
.faq-a{
  display:none;
  padding:16px 24px 22px;
  border-top:1px solid var(--line);
  font-size:15px;
  color:var(--text-1);
  line-height:1.8;
}
.faq-card.open .faq-a{display:block}

/* ---------- CTA ---------- */
.cta-panel{
  background:var(--brand);
  color:var(--brand-ink);
  border-radius:var(--r-lg);
  padding:40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
  margin:24px 0 0;
}
.cta-panel h2{color:var(--brand-ink)}
.cta-panel p{
  margin-top:8px;
  font-size:15px;
  color:rgba(11,12,16,.78);
  max-width:520px;
}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:700;
  white-space:nowrap;
  border:1px solid transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),filter var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--brand);color:var(--brand-ink)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);color:var(--brand-ink)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text-0)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-ghost:active{transform:translateY(1px)}
.btn-ink{background:var(--brand-ink);color:#fff}
.btn-ink:hover{filter:brightness(1.18);color:#fff;transform:translateY(-1px)}
.btn-ink:active{transform:translateY(1px)}
.btn-outline-ink{background:transparent;border-color:rgba(11,12,16,.4);color:var(--brand-ink)}
.btn-outline-ink:hover{background:rgba(11,12,16,.08);color:var(--brand-ink)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;filter:none}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:56px 0 0;
  margin-top:auto;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:40px;
}
.footer-brand .logo-row{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
}
.footer-brand p{
  font-size:14px;
  color:var(--text-1);
  line-height:1.75;
  max-width:320px;
  margin-bottom:16px;
}
.footer-col h3{
  font-size:15px;
  font-weight:700;
  color:var(--text-0);
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{
  font-size:14px;
  color:var(--text-1);
  line-height:1.6;
}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  border-top:1px solid var(--line);
  padding-top:20px;
  padding-bottom:24px;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-2);
}

/* ---------- 底部转化条 ---------- */
.convert-bar{
  position:fixed;
  left:var(--sidebar-w);
  right:0;
  bottom:0;
  background:var(--bg-1);
  border-top:1px solid var(--line);
  z-index:70;
  transition:transform var(--ease);
}
.convert-bar.collapsed{transform:translateY(110%)}
.convert-inner{
  max-width:1200px;
  margin:0 auto;
  padding:12px 40px;
  display:flex;
  align-items:center;
  gap:16px;
}
.convert-inner .cv-text{
  flex:1 1 auto;
  font-size:15px;
  color:var(--text-1);
  min-width:0;
}
.convert-inner .cv-text strong{color:var(--text-0);font-weight:700}
.convert-close{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:10px;
  color:var(--text-2);
  font-size:20px;
  line-height:1;
  flex:0 0 auto;
  transition:background var(--ease),color var(--ease);
}
.convert-close:hover{background:var(--bg-3);color:var(--text-0)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sidebar-w:208px}
  .container{padding:0 32px}
  .convert-inner{padding:12px 32px}
  h1{font-size:34px}
}
@media (max-width:1023px){
  .sidebar{transform:translateX(-100%);width:280px;box-shadow:var(--shadow-2)}
  .sidebar.open{transform:translateX(0)}
  .mobile-bar{display:flex}
  .shell{margin-left:0;padding-top:56px;padding-bottom:84px}
  .convert-bar{left:0}
  .container{padding:0 20px}
  .convert-inner{padding:12px 20px}
  .page-head{padding:40px 0 32px}
  h1{font-size:30px}
  h2{font-size:24px}
  .section{padding:56px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .card-grid{grid-template-columns:1fr}
  .quick-enter{grid-template-columns:1fr}
  .qe-item{border-right:0;border-bottom:1px solid var(--line)}
  .qe-item:last-child{border-bottom:0}
  .check-row{grid-template-columns:1fr;gap:8px}
  .doc-card .body{padding:18px}
  .doc-card h3{font-size:18px}
  .cta-panel{padding:28px 22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .convert-inner .cv-text{font-size:14px}
}
@media (max-width:520px){
  h1{font-size:26px}
  body{font-size:15px}
  .container{padding:0 16px}
  .convert-inner{padding:10px 16px;gap:10px}
  .convert-inner .cv-text{display:none}
  .cta-actions .btn{width:100%}
  .filter-row{gap:8px}
  .pill{font-size:13px;padding:0 14px}
}