/* roulang page: index */
:root{
  --brand-1:#6D4BF6;
  --brand-2:#FF5FA2;
  --accent:#FF8A3D;
  --mint:#16E0A1;
  --warn:#FF6B6B;
  --ink:#1B1430;
  --ink-2:#5A5470;
  --ink-3:#8C87A0;
  --bg:#F6F4FC;
  --bg-dark:#150F2B;
  --card:#FFFFFF;
  --line:rgba(109,75,246,.14);
  --grad-main:linear-gradient(100deg,#6D4BF6 0%,#A94BFF 45%,#FF5FA2 100%);
  --grad-soft:linear-gradient(135deg,rgba(109,75,246,.10),rgba(255,95,162,.08));
  --r-lg:26px;
  --r-md:18px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-1:0 6px 20px rgba(58,32,120,.07);
  --shadow-2:0 18px 44px rgba(58,32,120,.14);
  --shadow-dark:0 10px 30px rgba(0,0,0,.35);
  --t:0.25s cubic-bezier(.2,.7,.3,1);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{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:clamp(30px,4.6vw,46px);line-height:1.2;font-weight:700;letter-spacing:-.5px}
h2{font-size:clamp(23px,3vw,32px);line-height:1.32;font-weight:700}
h3{font-size:20px;line-height:1.5;font-weight:600}
p{line-height:1.85}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-tight{padding:64px 0}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--bg-dark);
  color:rgba(255,255,255,.82);
  font-size:13px;
  height:40px;
  display:flex;
  align-items:center;
}
.topbar-inner{
  width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;
  display:flex;align-items:center;gap:18px;
}
.topbar-domain{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  letter-spacing:.4px;
  color:#fff;
  white-space:nowrap;
}
.topbar-mid{
  display:flex;align-items:center;gap:10px;
  color:rgba(255,255,255,.66);
}
.topbar-mid::before{
  content:"";width:1px;height:14px;background:rgba(255,255,255,.24);
}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:16px}
.topbar-link{color:rgba(255,255,255,.78);transition:color var(--t),transform var(--t);white-space:nowrap}
.topbar-link:hover{color:#fff}
.topbar-btn{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--grad-main);
  color:#fff;font-size:12.5px;font-weight:600;
  padding:6px 15px;border-radius:var(--r-pill);
  transition:filter var(--t),transform var(--t);
  white-space:nowrap;
}
.topbar-btn:hover{filter:brightness(1.08);transform:translateX(2px)}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.nav-inner{
  width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;
  height:68px;display:flex;align-items:center;gap:24px;
  transition:height var(--t);
}
.site-header.is-scrolled .nav-inner{height:60px}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo-mark{
  width:40px;height:40px;border-radius:13px;
  background:var(--grad-main);
  display:grid;place-items:center;
  color:#fff;font-size:17px;
  box-shadow:0 8px 18px rgba(109,75,246,.32);
  flex-shrink:0;
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-name{font-size:16.5px;font-weight:700;letter-spacing:-.2px;white-space:nowrap}
.logo-sub{font-size:11.5px;color:var(--ink-3);letter-spacing:2.6px}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:12px}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  padding:9px 14px;border-radius:10px;
  font-size:14.5px;color:var(--ink-2);font-weight:500;
  transition:color var(--t),background var(--t);
  white-space:nowrap;
}
.nav-link:hover{background:var(--grad-soft);color:var(--ink)}
.nav-link.is-active{color:var(--ink);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:3px;border-radius:3px;
  background:var(--grad-main);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:16px}
.nav-text-link{font-size:14.5px;color:var(--brand-1);font-weight:600;white-space:nowrap}
.nav-text-link:hover{text-decoration:underline}
.menu-toggle{
  display:none;margin-left:auto;
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;
  color:var(--ink);font-size:17px;
}
.drawer-mask{
  position:fixed;inset:0;background:rgba(21,15,43,.5);
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;
  width:min(320px,84vw);
  background:#fff;z-index:100;
  transform:translateX(102%);
  transition:transform .3s cubic-bezier(.2,.7,.3,1);
  display:flex;flex-direction:column;
  padding:22px 20px 28px;
  box-shadow:-16px 0 40px rgba(21,15,43,.18);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{
  width:38px;height:38px;border-radius:11px;border:1px solid var(--line);
  font-size:16px;color:var(--ink-2);background:#fff;
}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  padding:13px 14px;border-radius:var(--r-sm);
  font-size:15px;color:var(--ink-2);font-weight:500;
  transition:background var(--t),color var(--t);
}
.drawer-nav a:hover{background:var(--grad-soft);color:var(--ink)}
.drawer-nav a.is-active{color:var(--ink);font-weight:700;background:var(--grad-soft);box-shadow:inset 3px 0 0 var(--brand-1)}
.drawer-tip{
  margin-top:20px;padding:14px 16px;border-radius:var(--r-sm);
  background:var(--grad-soft);color:var(--ink-2);font-size:13.5px;line-height:1.7;
}
.drawer-cta{margin-top:18px;display:flex;flex-direction:column;gap:10px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;
  transition:filter var(--t),transform var(--t),box-shadow var(--t),background var(--t),color var(--t);
  white-space:nowrap;
}
.btn-primary{
  background:var(--grad-main);color:#fff;
  box-shadow:0 10px 24px rgba(109,75,246,.28);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 16px 32px rgba(109,75,246,.34)}
.btn-outline{
  position:relative;color:var(--ink);background:#fff;
  border:1.5px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad-main);
  background-origin:border-box;
  background-clip:padding-box,border-box;
}
.btn-outline:hover{background-image:var(--grad-soft),var(--grad-main);transform:translateY(-2px)}
.btn-block{width:100%}
.btn-sm{padding:11px 20px;font-size:14px}
.btn:disabled,.btn[disabled]{opacity:.6;cursor:not-allowed;transform:none}
.text-link{
  display:inline-flex;align-items:center;gap:7px;
  color:var(--brand-1);font-weight:600;font-size:14.5px;
}
.text-link i{transition:transform var(--t)}
.text-link:hover i{transform:translateX(3px)}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;line-height:1.7;
  background:#fff;border:1px solid var(--line);color:var(--ink-2);
}
.badge-mint{background:rgba(22,224,161,.12);border-color:rgba(22,224,161,.42);color:#0C7C59}
.badge-orange{background:rgba(255,138,61,.12);border-color:rgba(255,138,61,.42);color:#B3541A}
.badge-pink{background:rgba(255,95,162,.12);border-color:rgba(255,95,162,.4);color:#C22C6D}
.badge-num{font-variant-numeric:tabular-nums}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:76px 0 84px;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(109,75,246,.16) 1px,transparent 1px);
  background-size:26px 26px;
  opacity:.5;pointer-events:none;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 78%);
}
.hero-blob{
  position:absolute;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,95,162,.22),transparent 68%);
  top:-160px;right:-120px;pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  font-size:13px;color:var(--ink-2);font-weight:600;
  box-shadow:var(--shadow-1);
}
.hero-tag .dot{
  width:8px;height:8px;border-radius:50%;background:var(--mint);
  box-shadow:0 0 0 4px rgba(22,224,161,.18);
}
.hero-title{margin-top:22px}
.hero-title em{
  font-style:normal;
  background:var(--grad-main);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  margin-top:18px;font-size:17px;color:var(--ink-2);
  max-width:560px;line-height:1.85;
}
.hero-cta{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px}
.hero-badges{margin-top:30px;display:flex;flex-wrap:wrap;gap:12px}
.hero-visual{position:relative}
.hero-visual::before{
  content:"";position:absolute;inset:-24px;border-radius:calc(var(--r-lg) + 18px);
  background:var(--grad-soft);z-index:0;
}
.hero-visual img{
  position:relative;z-index:1;
  width:100%;border-radius:var(--r-lg);
  box-shadow:var(--shadow-2);
  aspect-ratio:4/3;object-fit:cover;
  border:1px solid var(--line);
}
.hero-float{
  position:absolute;z-index:2;left:-18px;bottom:26px;
  background:#fff;border-radius:var(--r-md);
  padding:14px 18px;box-shadow:var(--shadow-2);
  border:1px solid var(--line);
  display:flex;align-items:center;gap:12px;
}
.hero-float i{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:var(--grad-soft);color:var(--brand-1);font-size:16px;
}
.hero-float strong{display:block;font-size:16px;font-variant-numeric:tabular-nums}
.hero-float span{font-size:12.5px;color:var(--ink-3)}

/* ---------- 指标看板 ---------- */
.stats-board{
  background:var(--bg-dark);
  color:#fff;
  border-radius:var(--r-lg);
  padding:56px 44px;
  position:relative;
  overflow:hidden;
}
.stats-board::after{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:var(--grad-main);
}
.stats-board::before{
  content:"";position:absolute;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(109,75,246,.4),transparent 70%);
  right:-100px;bottom:-160px;
}
.stats-head{
  position:relative;display:flex;flex-wrap:wrap;gap:20px;align-items:flex-end;justify-content:space-between;
  margin-bottom:34px;
}
.stats-head h2{color:#fff}
.stats-head p{color:rgba(255,255,255,.62);font-size:14.5px;margin-top:8px;max-width:560px}
.stats-grid{
  position:relative;
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
}
.stat-card{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-md);
  padding:24px 22px;
  box-shadow:var(--shadow-dark);
  transition:transform var(--t),background var(--t);
}
.stat-card:hover{transform:translateY(-4px);background:rgba(255,255,255,.1)}
.stat-value{
  display:flex;align-items:baseline;gap:5px;
  font-size:clamp(34px,4.4vw,50px);font-weight:700;line-height:1;
  font-variant-numeric:tabular-nums;letter-spacing:-1px;
}
.stat-value .unit{font-size:16px;font-weight:600;opacity:.72}
.stat-label{font-size:14px;color:rgba(255,255,255,.7);margin-top:10px}
.trend{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:14px;padding:3px 11px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;font-variant-numeric:tabular-nums;
}
.trend-up{background:rgba(22,224,161,.14);color:var(--mint);border:1px solid rgba(22,224,161,.36)}
.trend-down{background:rgba(255,107,107,.14);color:var(--warn);border:1px solid rgba(255,107,107,.36)}

/* ---------- 板块标题 ---------- */
.section-head{
  display:flex;flex-wrap:wrap;gap:20px;align-items:flex-end;justify-content:space-between;
  margin-bottom:36px;
}
.eyebrow{
  display:inline-block;
  font-size:13px;font-weight:700;letter-spacing:1.6px;
  color:var(--brand-1);margin-bottom:12px;
}
.section-sub{margin-top:12px;color:var(--ink-2);font-size:15.5px;max-width:640px}

/* ---------- 服务矩阵 Bento ---------- */
.bento{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:20px;
}
.bento-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px;
  position:relative;
  overflow:hidden;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.bento-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(109,75,246,.3)}
.bento-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad-main);
  opacity:0;transition:opacity var(--t);
}
.bento-card:hover::before{opacity:1}
.bento-lg{grid-column:span 4;grid-row:span 2;display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:center;padding:30px}
.bento-sm{grid-column:span 2}
.bento-icon{
  width:44px;height:44px;border-radius:14px;
  display:grid;place-items:center;
  background:var(--grad-soft);color:var(--brand-1);font-size:18px;
  margin-bottom:16px;
}
.bento-card h3{font-size:19px}
.bento-card p{margin-top:10px;font-size:14.5px;color:var(--ink-2);line-height:1.8}
.bento-media img{
  width:100%;border-radius:var(--r-md);aspect-ratio:4/3;object-fit:cover;
  box-shadow:var(--shadow-1);
}
.bento-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.bento-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--ink-2);line-height:1.7;
}
.bento-list i{color:var(--mint);margin-top:5px;font-size:12px}
.bento-lg h3{font-size:22px}

/* ---------- 结果对比 ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-col{
  border-radius:var(--r-lg);padding:30px 28px;
  background:#fff;border:1px solid var(--line);
}
.compare-new{
  border:1.5px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad-main);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  box-shadow:var(--shadow-2);
}
.compare-old{background:#F1EFF7;color:var(--ink-2)}
.compare-head{
  display:flex;align-items:center;gap:10px;margin-bottom:22px;
  font-size:16px;font-weight:700;
}
.compare-head i{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;font-size:14px;
}
.compare-old .compare-head i{background:rgba(140,135,160,.16);color:var(--ink-2)}
.compare-new .compare-head i{background:var(--grad-main);color:#fff}
.compare-row{padding:16px 0;border-top:1px solid var(--line)}
.compare-row:first-of-type{border-top:0}
.compare-row-top{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.compare-row-top span{font-size:14.5px;font-weight:600}
.compare-row-top b{font-size:14px;font-variant-numeric:tabular-nums;font-weight:700}
.bar{height:7px;border-radius:4px;background:rgba(109,75,246,.1);margin-top:11px;overflow:hidden}
.bar i{display:block;height:100%;border-radius:4px;background:var(--grad-main)}
.compare-old .bar i{background:#C9C4D8}
.compare-note{margin-top:18px;font-size:13.5px;color:var(--ink-3)}

/* ---------- 最新信息 ---------- */
.news-feature{
  display:grid;grid-template-columns:1fr 1fr;gap:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform var(--t),box-shadow var(--t);
}
.news-feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.news-feature-media{position:relative;min-height:280px}
.news-feature-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.news-feature-body{padding:32px 32px 30px;display:flex;flex-direction:column}
.news-feature-body h3{margin-top:14px;font-size:22px;line-height:1.45}
.news-feature-body p{margin-top:14px;color:var(--ink-2);font-size:14.5px}
.news-meta{
  margin-top:auto;padding-top:20px;
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:13.5px;color:var(--ink-3);
}
.news-list{
  margin-top:22px;
  display:grid;grid-template-columns:repeat(2,1fr);gap:20px;
}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;
  display:flex;flex-direction:column;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(109,75,246,.3)}
.news-card h3{
  margin-top:12px;font-size:17px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card p{
  margin-top:10px;font-size:14px;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.empty-state{
  background:var(--grad-soft);
  border:1px dashed rgba(109,75,246,.3);
  border-radius:var(--r-md);
  padding:52px 24px;
  text-align:center;
}
.empty-illus{
  width:88px;height:88px;border-radius:50%;margin:0 auto 18px;
  background:var(--grad-main);opacity:.9;
  display:grid;place-items:center;color:#fff;font-size:28px;
}
.empty-state p{font-size:15px;color:var(--ink-2)}
.empty-state .btn{margin-top:20px}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:1fr 2fr;gap:44px;align-items:start}
.faq-side p{margin-top:14px;color:var(--ink-2);font-size:15px}
.faq-side .btn{margin-top:22px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  overflow:hidden;transition:box-shadow var(--t),border-color var(--t);
}
.faq-item[open]{box-shadow:var(--shadow-1);border-color:rgba(109,75,246,.3)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:19px 24px;
  font-size:16px;font-weight:600;color:var(--ink);
  position:relative;
  transition:color var(--t),background var(--t);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--grad-main);opacity:0;transition:opacity var(--t);
}
.faq-item[open] summary::before{opacity:1}
.faq-item[open] summary{color:var(--brand-1)}
.faq-item summary:hover{background:var(--grad-soft)}
.faq-icon{
  width:26px;height:26px;border-radius:50%;flex-shrink:0;
  display:grid;place-items:center;
  background:var(--grad-soft);color:var(--brand-1);font-size:12px;
  transition:transform var(--t);
}
.faq-item[open] .faq-icon{transform:rotate(180deg)}
.faq-answer{padding:0 24px 22px;color:var(--ink-2);font-size:14.8px;line-height:1.85}

/* ---------- 转化表单 ---------- */
.cta-wrap{
  border-radius:var(--r-lg);
  border:1.5px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad-main);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  box-shadow:var(--shadow-2);
  padding:44px;
  display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;
}
.cta-copy h2{margin-top:12px}
.cta-copy p{margin-top:16px;color:var(--ink-2);font-size:15px}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--ink-2)}
.cta-points i{color:var(--brand-1);margin-top:5px;font-size:12px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:13.5px;font-weight:600;color:var(--ink)}
.field input,.field select,.field textarea{
  height:48px;padding:0 15px;
  border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;font-size:14.5px;
  transition:border-color var(--t),box-shadow var(--t);
}
.field textarea{height:104px;padding:13px 15px;resize:vertical;line-height:1.75}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-1);
  box-shadow:0 0 0 4px rgba(109,75,246,.14);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{
  border-color:var(--warn);box-shadow:0 0 0 4px rgba(255,107,107,.12);
}
.field-error{font-size:13px;color:var(--warn);display:none}
.field.has-error .field-error{display:block}
.form-note{margin-top:14px;font-size:13px;color:var(--ink-3)}
.form-success{
  display:none;margin-top:16px;padding:13px 16px;border-radius:var(--r-sm);
  background:rgba(22,224,161,.12);border:1px solid rgba(22,224,161,.4);
  color:#0C7C59;font-size:14px;font-weight:600;
}
.form-success.is-visible{display:block}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:88px;
  background:var(--bg-dark);
  color:rgba(255,255,255,.72);
  border-radius:var(--r-lg) var(--r-lg) 0 0;
  padding:60px 0 0;
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:var(--grad-main);border-radius:var(--r-lg) var(--r-lg) 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:44px;
}
.footer-brand .logo-name{color:#fff}
.footer-brand .logo-sub{color:rgba(255,255,255,.5)}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:320px}
.footer-badges{margin-top:20px;display:flex;flex-wrap:wrap;gap:9px}
.footer-badges .badge{
  background:rgba(255,255,255,.07);
  border-color:rgba(255,255,255,.16);
  color:rgba(255,255,255,.78);
}
.footer-col h4{font-size:15px;color:#fff;font-weight:700;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.66);transition:color var(--t),padding-left var(--t)}
.footer-links a:hover{color:#fff;padding-left:4px}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.66);display:flex;gap:10px;margin-bottom:12px;align-items:flex-start}
.footer-contact i{color:var(--brand-2);margin-top:5px;font-size:12.5px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom-links{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom a{color:rgba(255,255,255,.58)}
.footer-bottom a:hover{color:#fff}
.to-top{
  width:42px;height:42px;border-radius:50%;
  background:var(--grad-main);color:#fff;
  display:grid;place-items:center;font-size:15px;
  transition:transform var(--t),box-shadow var(--t);
  box-shadow:0 10px 24px rgba(109,75,246,.34);
}
.to-top:hover{transform:translateY(-4px)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .stats-grid{grid-template-columns:repeat(4,1fr);gap:16px}
  .bento{grid-template-columns:repeat(4,1fr)}
  .bento-lg{grid-column:span 4;grid-row:auto}
  .bento-sm{grid-column:span 2}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .hero{padding:56px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{order:-1}
  .nav-links,.nav-text-link{display:none}
  .menu-toggle{display:grid;place-items:center}
  .nav-actions{display:none}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stats-board{padding:44px 28px}
  .bento{grid-template-columns:repeat(2,1fr)}
  .bento-lg{grid-column:span 2;grid-template-columns:1fr}
  .bento-sm{grid-column:span 1}
  .compare-grid{grid-template-columns:1fr}
  .news-feature{grid-template-columns:1fr}
  .news-feature-media{min-height:220px;position:relative}
  .news-list{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr;gap:28px}
  .cta-wrap{grid-template-columns:1fr;padding:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .topbar-inner{padding:0 18px}
  .topbar-mid{display:none}
  .topbar-right{gap:12px}
  .section{padding:48px 0}
  .hero-badges{gap:8px}
  .hero-cta .btn{width:100%}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .stat-card{padding:20px 18px}
  .bento{grid-template-columns:1fr}
  .bento-lg,.bento-sm{grid-column:span 1}
  .news-feature-body{padding:24px}
  .form-grid{grid-template-columns:1fr}
  .cta-wrap{padding:26px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .hero-float{left:0;bottom:14px;padding:11px 14px}
}
@media (max-width:519px){
  h1{font-size:26px}
  .section-head{margin-bottom:26px}
  .stats-board{border-radius:var(--r-md);padding:34px 20px}
  .stat-value{font-size:32px}
  .faq-item summary{padding:16px 18px;font-size:15px}
  .faq-answer{padding:0 18px 18px}
  .footer-bottom{justify-content:flex-start}
}

/* roulang page: article */
:root{
  --brand-1:#6D4BF6;
  --brand-2:#FF5FA2;
  --accent:#FF8A3D;
  --mint:#16E0A1;
  --warn:#FF6B6B;
  --ink:#1B1430;
  --ink-2:#5A5470;
  --ink-3:#8C87A0;
  --bg:#F6F4FC;
  --bg-dark:#150F2B;
  --card:#FFFFFF;
  --line:rgba(109,75,246,.14);
  --grad-main:linear-gradient(100deg,#6D4BF6 0%,#A94BFF 45%,#FF5FA2 100%);
  --grad-soft:linear-gradient(135deg,rgba(109,75,246,.10),rgba(255,95,162,.08));
  --r-lg:26px;
  --r-md:18px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-1:0 6px 20px rgba(58,32,120,.07);
  --shadow-2:0 18px 44px rgba(58,32,120,.14);
  --t:.25s cubic-bezier(.2,.7,.3,1);
  --wide:1180px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{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;line-height:1.35;letter-spacing:.2px;}
p{margin:0;}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--wide);margin:0 auto;padding:0 24px;}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--bg-dark);color:rgba(255,255,255,.78);font-size:13px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:40px;}
.topbar-left{display:flex;align-items:center;gap:12px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:.4px;}
.topbar-left .sep{width:1px;height:14px;background:rgba(255,255,255,.24);}
.topbar-mid{flex:1;text-align:center;color:rgba(255,255,255,.66);}
.topbar-right{display:flex;align-items:center;gap:14px;}
.topbar-link{color:rgba(255,255,255,.82);transition:color var(--t),transform var(--t);}
.topbar-link:hover{color:#fff;transform:translateX(2px);}
.topbar-btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:var(--r-pill);
  background:var(--grad-main);color:#fff;font-size:13px;font-weight:600;
  transition:filter var(--t),transform var(--t),box-shadow var(--t);
}
.topbar-btn:hover{filter:brightness(1.08);transform:translateX(2px);box-shadow:0 6px 16px rgba(109,75,246,.4);}

/* ============ 主导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t),height var(--t);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;transition:height var(--t);}
.site-header.is-scrolled .nav-inner{height:60px;}

.logo{display:inline-flex;align-items:center;gap:11px;}
.logo-mark{
  width:40px;height:40px;border-radius:13px;background:var(--grad-main);
  display:grid;place-items:center;color:#fff;font-size:17px;
  box-shadow:0 8px 18px rgba(109,75,246,.32);
  flex:0 0 auto;
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-name{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.4px;}
.logo-sub{font-size:11px;color:var(--ink-3);letter-spacing:2.4px;}

.nav-links{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;display:inline-block;padding:8px 14px;border-radius:10px;
  font-size:14px;color:var(--ink-2);white-space:nowrap;
  transition:background var(--t),color var(--t);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;width:0;height:3px;border-radius:3px;
  background:var(--grad-main);transform:translateX(-50%);transition:width var(--t);
}
.nav-link:hover{background:var(--grad-soft);color:var(--ink);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{width:22px;}

.nav-actions{display:flex;align-items:center;gap:14px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);font-weight:600;font-size:14px;
  padding:11px 24px;transition:transform var(--t),box-shadow var(--t),filter var(--t),background var(--t),color var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--grad-main);color:#fff;box-shadow:0 8px 20px rgba(109,75,246,.28);}
.btn-primary:hover{filter:brightness(1.06);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.btn-ghost{
  position:relative;background:#fff;color:var(--ink);padding:10px 23px;
  border:1.5px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad-main);
  background-origin:border-box;background-clip:padding-box,border-box;
}
.btn-ghost:hover{background-image:var(--grad-soft),var(--grad-main);transform:translateY(-2px);}
.btn-text{color:var(--brand-1);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px;}
.btn-text i{transition:transform var(--t);}
.btn-text:hover i{transform:translateX(3px);}
.btn-block{width:100%;}

.burger{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  align-items:center;justify-content:center;font-size:16px;
}
.burger:hover{background:var(--grad-soft);}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(21,15,43,.5);
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(320px,84vw);
  background:#fff;z-index:90;padding:22px;transform:translateX(102%);
  transition:transform var(--t);display:flex;flex-direction:column;gap:18px;
  box-shadow:-18px 0 40px rgba(21,15,43,.2);overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{width:38px;height:38px;border-radius:11px;border:1px solid var(--line);display:grid;place-items:center;}
.drawer-tip{font-size:13px;color:var(--ink-2);background:var(--grad-soft);border-radius:var(--r-sm);padding:11px 14px;line-height:1.7;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{padding:12px 14px;border-radius:12px;font-size:15px;color:var(--ink-2);transition:background var(--t),color var(--t);}
.drawer-nav a:hover{background:var(--grad-soft);color:var(--ink);}
.drawer-nav a.is-active{color:var(--brand-1);font-weight:600;background:var(--grad-soft);}

/* ============ 文章主体 ============ */
.page-main{padding:34px 0 88px;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);}
.crumbs a{color:var(--ink-2);transition:color var(--t);}
.crumbs a:hover{color:var(--brand-1);}
.crumbs .divider{color:var(--ink-3);}
.crumbs .current{color:var(--ink-2);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:44px;margin-top:26px;align-items:start;}

.article-shell{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:40px 44px 46px;box-shadow:var(--shadow-1);position:relative;overflow:hidden;
}
.article-shell::before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:var(--grad-main);}

.article-head .badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;letter-spacing:.3px;
  background:rgba(109,75,246,.08);color:var(--brand-1);border:1px solid rgba(109,75,246,.22);
}
.badge-mint{background:rgba(22,224,161,.12);color:#0C8F68;border-color:rgba(22,224,161,.34);}
.badge-accent{background:rgba(255,138,61,.12);color:#C4611A;border-color:rgba(255,138,61,.32);}
.badge-pink{background:rgba(255,95,162,.10);color:#C33872;border-color:rgba(255,95,162,.3);}

.article-head h1{
  font-size:clamp(25px,3.2vw,36px);line-height:1.34;color:var(--ink);
  margin-bottom:18px;letter-spacing:.4px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  font-size:13.5px;color:var(--ink-3);
}
.meta-row .dot{width:1px;height:13px;background:var(--line);display:inline-block;}
.meta-row i{color:var(--brand-1);font-size:12px;margin-right:5px;}
.head-sep{height:1px;background:var(--line);margin:24px 0 10px;}

.article-body{max-width:760px;font-size:16px;color:#2A2340;}
.article-body p{margin:0 0 18px;line-height:1.95;}
.article-body h2{
  position:relative;font-size:clamp(20px,2.3vw,25px);line-height:1.4;
  margin:44px 0 18px;padding-left:16px;color:var(--ink);scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;border-radius:4px;background:var(--grad-main);
}
.article-body h3{font-size:19px;margin:32px 0 14px;color:var(--ink);}
.article-body h4{font-size:17px;margin:26px 0 12px;color:var(--ink);}
.article-body a{color:var(--brand-1);border-bottom:1px solid rgba(109,75,246,.35);transition:border-color var(--t),color var(--t);}
.article-body a:hover{color:var(--brand-2);border-color:var(--brand-2);}
.article-body strong{color:var(--ink);font-weight:700;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:0 0 10px;line-height:1.9;}
.article-body li::marker{color:var(--brand-1);}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-radius:0 var(--r-md) var(--r-md) 0;
  background:var(--grad-soft);border-left:4px solid var(--brand-1);color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-md);margin:26px auto;box-shadow:var(--shadow-1);}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:24px 0;border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow-1);}
.article-body th{background:#F1EDFE;text-align:left;padding:13px 15px;font-weight:600;color:var(--ink);}
.article-body td{padding:13px 15px;border-top:1px solid var(--line);color:var(--ink-2);background:#fff;}
.article-body hr{border:0;height:1px;background:var(--line);margin:34px 0;}
.article-body code{background:rgba(109,75,246,.08);border-radius:6px;padding:2px 6px;font-size:14px;color:var(--brand-1);}

.tag-block{margin-top:44px;padding-top:26px;border-top:1px solid var(--line);}
.tag-block h3{font-size:15px;color:var(--ink-2);margin-bottom:14px;font-weight:600;}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  padding:6px 15px;border-radius:var(--r-pill);background:var(--grad-soft);
  border:1px solid var(--line);font-size:13px;color:var(--ink-2);transition:color var(--t),border-color var(--t),transform var(--t);
}
.tag:hover{color:var(--brand-1);border-color:rgba(109,75,246,.35);transform:translateY(-2px);}

.back-row{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;}

/* 空态 */
.empty-state{
  background:var(--grad-soft);border-radius:var(--r-md);border:1px dashed rgba(109,75,246,.3);
  padding:52px 26px;text-align:center;
}
.empty-icon{
  width:88px;height:88px;margin:0 auto 20px;border-radius:50%;
  background:conic-gradient(from 210deg,rgba(109,75,246,.22),rgba(255,95,162,.22),rgba(109,75,246,.22));
  display:grid;place-items:center;color:var(--brand-1);font-size:30px;position:relative;
}
.empty-icon::after{content:"";position:absolute;inset:10px;border-radius:50%;background:#fff;}
.empty-icon i{position:relative;z-index:1;}
.empty-state h2{font-size:21px;margin-bottom:10px;}
.empty-state p{font-size:14.5px;color:var(--ink-2);margin-bottom:22px;}

/* 侧栏 */
.side{position:sticky;top:98px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--shadow-1);
}
.side-card h3{font-size:15px;color:var(--ink);margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3 i{color:var(--brand-1);font-size:13px;}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:360px;overflow-y:auto;}
.toc-list a{
  display:block;padding:9px 12px;border-radius:10px;font-size:13.5px;color:var(--ink-2);
  border-left:3px solid transparent;transition:background var(--t),color var(--t),border-color var(--t);
  line-height:1.55;
}
.toc-list a:hover{background:var(--grad-soft);color:var(--ink);}
.toc-list a.is-current{background:var(--grad-soft);color:var(--brand-1);border-left-color:var(--brand-1);font-weight:600;}

.side-cta{
  border-radius:var(--r-md);padding:24px;color:#fff;
  background:var(--bg-dark);position:relative;overflow:hidden;
}
.side-cta::before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:var(--grad-main);}
.side-cta::after{
  content:"";position:absolute;right:-40px;bottom:-40px;width:150px;height:150px;border-radius:50%;
  background:radial-gradient(circle,rgba(109,75,246,.55),transparent 68%);
}
.side-cta h3{font-size:17px;margin-bottom:10px;color:#fff;position:relative;z-index:1;}
.side-cta p{font-size:13.5px;color:rgba(255,255,255,.72);line-height:1.75;margin-bottom:18px;position:relative;z-index:1;}
.side-cta .btn{position:relative;z-index:1;padding:10px 20px;font-size:13.5px;}

.side-list{display:flex;flex-direction:column;}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 4px;font-size:14px;color:var(--ink-2);border-bottom:1px solid var(--line);
  transition:color var(--t),padding-left var(--t);
}
.side-list a:last-child{border-bottom:0;}
.side-list a:hover{color:var(--brand-1);padding-left:8px;}
.side-list i{font-size:11px;color:var(--ink-3);}

/* 底部 CTA 横幅 */
.cta-band{
  margin-top:56px;border-radius:var(--r-lg);padding:40px;
  background:var(--bg-dark);color:#fff;position:relative;overflow:hidden;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
}
.cta-band::before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:var(--grad-main);}
.cta-band::after{
  content:"";position:absolute;left:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,95,162,.42),transparent 66%);
}
.cta-band h2{font-size:clamp(20px,2.4vw,26px);margin-bottom:10px;position:relative;z-index:1;}
.cta-band p{font-size:14.5px;color:rgba(255,255,255,.74);max-width:560px;position:relative;z-index:1;}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:1;}
.cta-band .btn-ghost{background-image:linear-gradient(var(--bg-dark),var(--bg-dark)),var(--grad-main);color:#fff;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:0;background:var(--bg-dark);color:rgba(255,255,255,.7);
  border-radius:var(--r-lg) var(--r-lg) 0 0;padding:56px 0 26px;position:relative;
}
.site-footer::before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:var(--grad-main);border-radius:var(--r-lg) var(--r-lg) 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:38px;}
.footer-brand .logo-mark{background:var(--grad-main);}
.footer-brand .logo-name{color:#fff;}
.footer-brand .logo-sub{color:rgba(255,255,255,.5);}
.footer-desc{font-size:13.5px;line-height:1.85;margin:16px 0 18px;color:rgba(255,255,255,.66);max-width:330px;}
.footer-badges{display:flex;flex-wrap:wrap;gap:9px;}
.footer-badges .badge{background:rgba(255,255,255,.08);color:rgba(255,255,255,.82);border-color:rgba(255,255,255,.16);}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.6px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:13.5px;color:rgba(255,255,255,.66);transition:color var(--t),transform var(--t);}
.footer-links a:hover{color:#fff;transform:translateX(3px);}
.footer-contact li{display:flex;gap:10px;font-size:13.5px;line-height:1.7;margin-bottom:12px;color:rgba(255,255,255,.66);}
.footer-contact i{color:var(--brand-2);margin-top:5px;font-size:12px;}
.footer-bottom{
  margin-top:42px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom-links{display:flex;flex-wrap:wrap;gap:18px;}
.footer-bottom-links a:hover{color:#fff;}
.to-top{
  width:42px;height:42px;border-radius:50%;background:var(--grad-main);color:#fff;
  display:grid;place-items:center;box-shadow:0 10px 22px rgba(109,75,246,.36);
  transition:transform var(--t),filter var(--t);
}
.to-top:hover{transform:translateY(-3px);filter:brightness(1.06);}

/* ============ 响应式 ============ */
@media (max-width:1100px){
  .article-layout{grid-template-columns:minmax(0,1fr) 260px;gap:30px;}
  .article-shell{padding:34px 32px 38px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:980px){
  .nav-links{display:none;}
  .nav-actions .btn-text{display:none;}
  .burger{display:inline-flex;}
  .topbar-mid{display:none;}
  .article-layout{grid-template-columns:1fr;}
  .side{position:static;order:2;}
  .article-shell{padding:30px 24px 34px;}
  .cta-band{padding:30px 24px;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .page-main{padding:24px 0 64px;}
  .article-head h1{font-size:clamp(22px,5.4vw,28px);}
  .article-body{font-size:15.5px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-desc{max-width:none;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn{flex:1 1 auto;justify-content:center;}
}
@media (max-width:520px){
  .topbar-left .sep,.topbar-left .hint{display:none;}
  .logo-name{font-size:15.5px;}
  .article-shell{padding:24px 18px 28px;border-radius:var(--r-md);}
  .btn{padding:10px 18px;font-size:13.5px;}
  .back-row .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --brand-1:#6D4BF6;
  --brand-2:#FF5FA2;
  --accent:#FF8A3D;
  --mint:#16E0A1;
  --warn:#FF6B6B;
  --ink:#1B1430;
  --ink-2:#5A5470;
  --ink-3:#8C87A0;
  --bg:#F6F4FC;
  --bg-dark:#150F2B;
  --card:#FFFFFF;
  --line:rgba(109,75,246,.14);
  --grad-main:linear-gradient(100deg,#6D4BF6 0%,#A94BFF 45%,#FF5FA2 100%);
  --grad-soft:linear-gradient(135deg,rgba(109,75,246,.10),rgba(255,95,162,.08));
  --r-lg:26px;
  --r-md:18px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-1:0 6px 20px rgba(58,32,120,.07);
  --shadow-2:0 18px 44px rgba(58,32,120,.14);
  --ease:0.25s cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p,figure{margin:0;}
h1,h2,h3,h4{line-height:1.35;font-weight:700;}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;border-radius:6px;}
.container{max-width:1180px;margin:0 auto;padding:0 24px;width:100%;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--bg-dark);color:rgba(255,255,255,.72);font-size:13px;}
.topbar .container{display:flex;align-items:center;gap:14px;height:40px;}
.topbar-domain{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:#fff;letter-spacing:.4px;white-space:nowrap;}
.topbar-divider{width:1px;height:14px;background:rgba(255,255,255,.22);flex:0 0 auto;}
.topbar-tip{flex:1 1 auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:rgba(255,255,255,.66);}
.topbar-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.topbar-link{color:rgba(255,255,255,.78);transition:color var(--ease);}
.topbar-link:hover{color:#fff;}
.topbar-btn{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--grad-main);color:#fff;font-size:12.5px;font-weight:600;
  transition:filter var(--ease),transform var(--ease);
}
.topbar-btn:hover{filter:brightness(1.08);transform:translateX(2px);}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-stuck{box-shadow:var(--shadow-1);}
.nav-bar{display:flex;align-items:center;gap:20px;height:68px;transition:height var(--ease);}
.site-header.is-stuck .nav-bar{height:60px;}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad-main);
  display:grid;place-items:center;color:#fff;font-size:17px;
  box-shadow:0 8px 18px rgba(109,75,246,.28);
}
.logo-text{display:flex;flex-direction:column;line-height:1.16;}
.logo-name{font-size:16px;font-weight:700;letter-spacing:.2px;}
.logo-sub{font-size:11px;letter-spacing:3px;color:var(--ink-3);}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:14px;}
.nav-link{
  position:relative;padding:10px 14px;border-radius:10px;
  font-size:14px;color:var(--ink-2);
  transition:background var(--ease),color var(--ease);
}
.nav-link:hover{background:var(--grad-soft);color:var(--ink);}
.nav-link.is-active{color:var(--ink);font-weight:700;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  border-radius:var(--r-pill);background:var(--grad-main);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:16px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#fff;color:var(--ink);
  align-items:center;justify-content:center;font-size:17px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),filter var(--ease),background var(--ease),color var(--ease);
}
.btn i{font-size:13px;transition:transform var(--ease);}
.btn-primary{background:var(--grad-main);color:#fff;box-shadow:0 10px 24px rgba(109,75,246,.28);}
.btn-primary:hover{filter:brightness(1.06);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.btn-outline{
  color:var(--ink);
  border:1.5px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad-main);
  background-origin:border-box;
  background-clip:padding-box,border-box;
}
.btn-outline:hover{background-image:var(--grad-soft),var(--grad-main);transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand-1);font-size:14px;font-weight:600;
}
.btn-text i{font-size:12px;transition:transform var(--ease);}
.btn-text:hover i{transform:translateX(3px);}
.btn[disabled],.btn.is-disabled{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{margin-bottom:34px;max-width:760px;}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--grad-soft);border:1px solid var(--line);
  color:var(--brand-1);font-size:13px;font-weight:600;margin-bottom:14px;
}
.section-title{font-size:clamp(23px,3vw,32px);line-height:1.32;}
.section-desc{margin-top:12px;color:var(--ink-2);font-size:15.5px;max-width:680px;}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:20px;flex-wrap:wrap;}
.breadcrumb a{color:var(--ink-2);transition:color var(--ease);}
.breadcrumb a:hover{color:var(--brand-1);}
.breadcrumb .sep{color:rgba(109,75,246,.4);}

/* ---------- 分类页 Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  padding:56px 0 64px;
  background:linear-gradient(180deg,#FBFAFF 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(109,75,246,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(109,75,246,.05) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(ellipse at 82% 20%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(ellipse at 82% 20%,#000 0%,transparent 72%);
  pointer-events:none;
}
.cat-hero::after{
  content:"";position:absolute;width:380px;height:380px;right:-110px;top:-140px;
  border-radius:50%;background:radial-gradient(circle,rgba(255,95,162,.22),transparent 66%);
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:1;}
.cat-hero h1{font-size:clamp(30px,4.4vw,44px);line-height:1.22;max-width:820px;}
.cat-hero .lead{margin-top:18px;font-size:17px;color:var(--ink-2);max-width:720px;line-height:1.9;}
.hero-line{width:104px;height:4px;border-radius:var(--r-pill);background:var(--grad-main);margin-top:26px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:30px;padding:0 15px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;
  background:#fff;border:1px solid var(--line);color:var(--ink-2);
}
.badge-mint{background:rgba(22,224,161,.10);border-color:rgba(22,224,161,.34);color:#0B8A63;}
.badge-orange{background:rgba(255,138,61,.11);border-color:rgba(255,138,61,.34);color:#C25A16;}
.badge-pink{background:rgba(255,95,162,.11);border-color:rgba(255,95,162,.32);color:#C42D71;}

/* ---------- Bento 特性 ---------- */
.bento{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.feat{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:26px 26px 28px;overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.feat:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(109,75,246,.28);}
.feat::before{
  content:"";position:absolute;left:0;right:0;top:0;height:4px;
  background:var(--grad-main);opacity:0;transition:opacity var(--ease);
}
.feat:hover::before{opacity:1;}
.feat-icon{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  background:var(--grad-soft);border:1px solid var(--line);
  color:var(--brand-1);font-size:18px;margin-bottom:16px;
}
.feat h3{font-size:19px;font-weight:600;margin-bottom:8px;}
.feat p{font-size:14.5px;color:var(--ink-2);line-height:1.8;}
.feat-large{
  grid-column:span 2;grid-row:span 2;
  padding:0;display:flex;flex-direction:column;
}
.feat-large .feat-visual{position:relative;height:236px;overflow:hidden;}
.feat-large .feat-visual img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.2,.7,.3,1);}
.feat-large:hover .feat-visual img{transform:scale(1.04);}
.feat-large .feat-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(21,15,43,0) 40%,rgba(21,15,43,.5) 100%);
}
.feat-large .feat-tag{
  position:absolute;left:24px;top:20px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.92);color:var(--brand-1);font-size:12.5px;font-weight:700;
}
.feat-large .feat-body{padding:26px 28px 30px;display:flex;flex-direction:column;flex:1;}
.feat-large h3{font-size:22px;margin-bottom:12px;}
.feat-large .feat-body > p{font-size:15px;color:var(--ink-2);}
.feat-points{margin-top:18px;display:grid;gap:10px;}
.feat-points li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14.5px;color:var(--ink-2);
}
.feat-points li i{color:var(--mint);font-size:13px;margin-top:6px;}

/* ---------- 参数对照 ---------- */
.compare-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;box-shadow:var(--shadow-1);}
.compare-head{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:22px;}
.compare-head h3{font-size:17px;font-weight:700;display:flex;align-items:center;gap:9px;}
.compare-head h3 i{font-size:15px;}
.compare-head .plain i{color:var(--ink-3);}
.compare-head .brand i{color:var(--brand-1);}
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-col{border-radius:var(--r-md);padding:8px 0;}
.compare-plain{background:#FAFAFC;border:1px solid rgba(90,84,112,.10);padding:20px 22px;}
.compare-brand{
  position:relative;
  background:linear-gradient(#fff,#fff) padding-box,var(--grad-main) border-box;
  border:1.5px solid transparent;padding:20px 22px;
  box-shadow:0 14px 34px rgba(109,75,246,.13);
}
.compare-list{display:grid;gap:2px;}
.compare-list li{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:8px 12px;border-radius:10px;
  border-bottom:1px solid var(--line);
  transition:background var(--ease);
}
.compare-list li:last-child{border-bottom:0;}
.compare-list li:hover{background:rgba(109,75,246,.05);}
.cmp-label{font-size:14px;color:var(--ink-3);flex:0 0 auto;}
.cmp-value{font-size:14.5px;font-weight:600;color:var(--ink-2);text-align:right;}
.compare-brand .cmp-value{color:var(--ink);}
.cmp-meter{height:6px;border-radius:var(--r-pill);background:rgba(90,84,112,.12);overflow:hidden;margin-top:14px;}
.cmp-meter i{display:block;height:100%;border-radius:var(--r-pill);background:var(--grad-main);}
.compare-plain .cmp-meter i{background:linear-gradient(90deg,#B7B3C6,#8C87A0);}
.compare-note{margin-top:16px;font-size:13px;color:var(--ink-3);}

/* ---------- 数据小结 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.stat{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px 24px 26px;position:relative;overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease);
}
.stat:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.stat::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--grad-main);}
.stat-num{
  font-size:clamp(34px,4.4vw,46px);line-height:1;font-weight:700;
  font-variant-numeric:tabular-nums;letter-spacing:-1px;
  background:var(--grad-main);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-num span{font-size:16px;letter-spacing:0;margin-left:4px;color:var(--ink-3);-webkit-text-fill-color:var(--ink-3);}
.stat-label{margin-top:12px;font-size:14px;color:var(--ink-2);}
.stat-trend{margin-top:14px;display:inline-flex;}
.badge-mint-sm{height:26px;padding:0 12px;font-size:12px;}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:1fr 2fr;gap:44px;align-items:start;}
.faq-aside h2{font-size:clamp(22px,2.6vw,28px);line-height:1.35;}
.faq-aside p{margin-top:14px;color:var(--ink-2);font-size:14.5px;}
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  overflow:hidden;transition:box-shadow var(--ease),border-color var(--ease);
}
.faq-item:hover{box-shadow:var(--shadow-1);}
.faq-item.is-open{border-color:rgba(109,75,246,.3);box-shadow:var(--shadow-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--ink);
  position:relative;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--grad-main);opacity:0;transition:opacity var(--ease);
}
.faq-item.is-open .faq-q{color:var(--brand-1);}
.faq-item.is-open .faq-q::before{opacity:1;}
.faq-q i{font-size:14px;color:var(--brand-1);transition:transform var(--ease);flex:0 0 auto;}
.faq-item.is-open .faq-q i{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s cubic-bezier(.2,.7,.3,1);}
.faq-a-inner{padding:0 24px 22px 24px;color:var(--ink-2);font-size:14.8px;line-height:1.9;}

/* ---------- CTA 横幅 ---------- */
.cta-band{padding:0 0 88px;}
.cta-card{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  background:linear-gradient(#fff,#fff) padding-box,var(--grad-main) border-box;
  border:1.5px solid transparent;
  padding:52px 48px;
  box-shadow:0 22px 54px rgba(109,75,246,.16);
}
.cta-card::after{
  content:"";position:absolute;width:320px;height:320px;right:-90px;bottom:-140px;
  border-radius:50%;background:radial-gradient(circle,rgba(109,75,246,.16),transparent 68%);
}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.6fr 1fr;gap:36px;align-items:center;}
.cta-inner h2{font-size:clamp(23px,3vw,32px);line-height:1.32;}
.cta-inner p{margin-top:14px;color:var(--ink-2);font-size:15.5px;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.cta-side{display:grid;gap:12px;}
.cta-side-item{
  display:flex;align-items:center;gap:12px;
  background:var(--grad-soft);border:1px solid var(--line);
  border-radius:var(--r-md);padding:14px 18px;
  font-size:14px;color:var(--ink-2);
}
.cta-side-item i{color:var(--brand-1);font-size:15px;}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;background:var(--bg-dark);color:rgba(255,255,255,.72);
  border-radius:26px 26px 0 0;padding:64px 0 0;margin-top:0;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:4px;
  background:var(--grad-main);border-radius:26px 26px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .logo-mark{box-shadow:none;}
.footer-brand .logo-name{color:#fff;}
.footer-brand .logo-sub{color:rgba(255,255,255,.5);}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:330px;}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.footer-badges .badge{
  background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.16);
  color:rgba(255,255,255,.78);height:28px;font-size:12.5px;
}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:600;}
.footer-links{display:grid;gap:11px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.64);transition:color var(--ease),transform var(--ease);}
.footer-links a:hover{color:#fff;transform:translateX(3px);}
.footer-contact{display:grid;gap:12px;}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:13.6px;color:rgba(255,255,255,.64);line-height:1.7;}
.footer-contact i{color:var(--brand-2);font-size:13px;margin-top:5px;}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 26px;display:flex;align-items:center;gap:20px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom-links{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom-links a{color:rgba(255,255,255,.55);transition:color var(--ease);}
.footer-bottom-links a:hover{color:#fff;}
.to-top{
  margin-left:auto;width:42px;height:42px;border-radius:50%;
  background:var(--grad-main);color:#fff;display:grid;place-items:center;font-size:14px;
  transition:transform var(--ease),box-shadow var(--ease);box-shadow:0 8px 20px rgba(109,75,246,.35);
}
.to-top:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(21,15,43,.5);
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(320px,84vw);
  background:#fff;z-index:90;padding:24px 22px;display:flex;flex-direction:column;gap:20px;
  transform:translateX(100%);transition:transform .3s cubic-bezier(.2,.7,.3,1);
  overflow-y:auto;box-shadow:-14px 0 40px rgba(21,15,43,.18);
}
.drawer.is-open{transform:none;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{
  width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);
  display:grid;place-items:center;color:var(--ink-2);font-size:16px;
}
.drawer-tip{font-size:13px;color:var(--ink-3);background:var(--grad-soft);border-radius:var(--r-sm);padding:12px 14px;line-height:1.7;}
.drawer-nav{display:grid;gap:6px;}
.drawer-nav a{
  padding:13px 14px;border-radius:12px;font-size:15px;color:var(--ink-2);
  transition:background var(--ease),color var(--ease);
}
.drawer-nav a:hover{background:var(--grad-soft);color:var(--ink);}
.drawer-nav a.is-active{background:var(--grad-soft);color:var(--brand-1);font-weight:700;}
.drawer-cta{margin-top:auto;display:grid;gap:12px;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .stats{grid-template-columns:repeat(4,1fr);gap:18px;}
}
@media (max-width:1023px){
  .section{padding:64px 0;}
  .section-tight{padding:52px 0;}
  .nav-links{display:none;}
  .nav-actions .btn-text{display:none;}
  .nav-toggle{display:flex;}
  .bento{grid-template-columns:repeat(2,1fr);}
  .feat-large{grid-column:span 2;grid-row:auto;}
  .feat-large .feat-visual{height:210px;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .compare-wrap{padding:26px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .topbar-tip{display:none;}
  .section{padding:48px 0;}
  .section-tight{padding:42px 0;}
  .cat-hero{padding:40px 0 48px;}
  .bento{grid-template-columns:1fr;gap:18px;}
  .feat-large{grid-column:span 1;}
  .compare-head,.compare-grid{grid-template-columns:1fr;}
  .compare-head{gap:12px;}
  .compare-head .brand{order:2;}
  .compare-grid .compare-brand{order:1;}
  .stats{gap:14px;}
  .btn{width:100%;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-card{padding:32px 22px;}
  .cta-side-item{font-size:13.5px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{gap:14px;}
  .to-top{margin-left:0;}
  .faq-q{padding:18px 18px;font-size:15px;}
  .faq-a-inner{padding:0 18px 18px 18px;}
}
@media (max-width:479px){
  html{font-size:15px;}
  .cat-hero h1{font-size:26px;}
  .logo-name{font-size:15px;}
  .stat-num{font-size:30px;}
  .stats{grid-template-columns:1fr 1fr;gap:12px;}
  .stat{padding:18px 16px 20px;}
  .compare-wrap{padding:18px;}
  .compare-plain,.compare-brand{padding:16px 14px;}
  .compare-list li{flex-direction:column;align-items:flex-start;gap:4px;padding:12px 8px;}
  .cmp-value{text-align:left;}
  .btn{height:46px;font-size:14.5px;}
}

/* roulang page: category2 */
:root{
  --brand-1:#6D4BF6;
  --brand-2:#FF5FA2;
  --accent:#FF8A3D;
  --mint:#16E0A1;
  --warn:#FF6B6B;
  --ink:#1B1430;
  --ink-2:#5A5470;
  --ink-3:#8C87A0;
  --bg:#F6F4FC;
  --bg-dark:#150F2B;
  --card:#FFFFFF;
  --line:rgba(109,75,246,.14);
  --grad-main:linear-gradient(100deg,#6D4BF6 0%,#A94BFF 45%,#FF5FA2 100%);
  --grad-soft:linear-gradient(135deg,rgba(109,75,246,.10),rgba(255,95,162,.08));
  --r-lg:26px;
  --r-md:18px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-1:0 6px 20px rgba(58,32,120,.07);
  --shadow-2:0 18px 44px rgba(58,32,120,.14);
  --ease:0.25s cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
  --num:"Barlow","DIN Alternate",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand-1);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--brand-2);}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{line-height:1.3;font-weight:700;}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;border-radius:6px;}
.container{max-width:1180px;margin:0 auto;padding:0 24px;}
.num{font-family:var(--num);font-variant-numeric:tabular-nums;}

/* ---------- 顶栏 ---------- */
.topbar{background:var(--bg-dark);color:rgba(255,255,255,.82);font-size:13px;height:40px;display:flex;align-items:center;}
.topbar-inner{display:flex;align-items:center;gap:16px;width:100%;}
.topbar-domain{font-family:var(--num);letter-spacing:.4px;color:#fff;opacity:.9;}
.topbar-sep{width:1px;height:14px;background:rgba(255,255,255,.24);}
.topbar-tip{color:rgba(255,255,255,.72);}
.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.topbar-link{color:rgba(255,255,255,.8);font-size:13px;}
.topbar-link:hover{color:#fff;}
.topbar-btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 16px;border-radius:var(--r-pill);
  background:var(--grad-main);color:#fff;font-size:13px;font-weight:600;
  transition:filter var(--ease),transform var(--ease);
}
.topbar-btn:hover{filter:brightness(1.08);transform:translateX(2px);color:#fff;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease),height var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.header-inner{display:flex;align-items:center;gap:24px;min-height:68px;transition:min-height var(--ease);}
.site-header.is-scrolled .header-inner{min-height:60px;}
.logo{display:inline-flex;align-items:center;gap:11px;}
.logo-mark{
  width:42px;height:42px;border-radius:14px;display:grid;place-items:center;
  background:var(--grad-main);color:#fff;font-size:18px;
  box-shadow:0 8px 18px rgba(109,75,246,.32);
}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-name{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.2px;}
.logo-sub{font-size:11.5px;color:var(--ink-3);letter-spacing:2px;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:12px;}
.nav-link{
  position:relative;display:inline-block;padding:9px 14px;border-radius:10px;
  font-size:14px;color:var(--ink-2);font-weight:500;transition:background var(--ease),color var(--ease);
}
.nav-link:hover{background:var(--grad-soft);color:var(--ink);}
.nav-link.is-active{color:var(--ink);font-weight:700;}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:22px;height:3px;border-radius:3px;background:var(--grad-main);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:600;line-height:1;white-space:nowrap;
  transition:filter var(--ease),transform var(--ease),box-shadow var(--ease),background var(--ease);
}
.btn i{font-size:13px;transition:transform var(--ease);}
.btn-primary{background:var(--grad-main);color:#fff;box-shadow:0 10px 24px rgba(109,75,246,.28);}
.btn-primary:hover{filter:brightness(1.06);box-shadow:var(--shadow-2);color:#fff;transform:translateY(-1px);}
.btn-outline{
  position:relative;color:var(--ink);background:#fff;
  border:1.5px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad-main);
  background-origin:border-box;background-clip:padding-box,border-box;
}
.btn-outline:hover{background-image:linear-gradient(135deg,rgba(109,75,246,.12),rgba(255,95,162,.10)),var(--grad-main);color:var(--brand-1);}
.btn-text{color:var(--brand-1);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px;}
.btn-text:hover i{transform:translateX(3px);}
.btn-block{width:100%;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);font-size:17px;
}
.nav-toggle:hover{background:var(--grad-soft);}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(21,15,43,.5);
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(320px,84vw);
  background:#fff;z-index:90;transform:translateX(102%);
  transition:transform var(--ease);display:flex;flex-direction:column;
  box-shadow:-16px 0 40px rgba(21,15,43,.22);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line);}
.drawer-close{width:38px;height:38px;border-radius:11px;background:var(--grad-soft);color:var(--ink);font-size:15px;}
.drawer-nav{padding:14px 12px;display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{padding:13px 14px;border-radius:12px;color:var(--ink-2);font-size:15px;font-weight:500;}
.drawer-nav a:hover{background:var(--grad-soft);color:var(--ink);}
.drawer-nav a.is-active{background:var(--grad-soft);color:var(--brand-1);font-weight:700;}
.drawer-foot{margin-top:auto;padding:18px 20px 26px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:12px;}
.drawer-tip{font-size:12.5px;color:var(--ink-3);line-height:1.7;}

/* ---------- 面包屑 / Hero ---------- */
.breadcrumb-bar{padding:20px 0 0;font-size:13px;color:var(--ink-3);}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--brand-1);}
.breadcrumb .sep{color:var(--ink-3);}
.breadcrumb .current{color:var(--brand-1);font-weight:600;}

.hero-cat{padding:26px 0 0;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(109,75,246,.09);color:var(--brand-1);font-size:13px;font-weight:600;
  border:1px solid var(--line);
}
.eyebrow i{font-size:11px;}
.hero-title{
  font-size:clamp(30px,4.6vw,46px);line-height:1.2;font-weight:700;margin:18px 0 0;
  letter-spacing:-.4px;
}
.hero-title .grad{
  background:var(--grad-main);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{margin-top:16px;font-size:17px;line-height:1.85;color:var(--ink-2);max-width:560px;}
.hero-rule{margin-top:22px;width:132px;height:4px;border-radius:4px;background:var(--grad-main);}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.stat-chip{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-1);
  font-size:13.5px;color:var(--ink-2);
}
.stat-chip b{font-family:var(--num);font-size:17px;color:var(--ink);font-variant-numeric:tabular-nums;}
.stat-chip.mint{border-color:rgba(22,224,161,.45);}
.stat-chip.mint b{color:#0FA878;}
.stat-chip.orange{border-color:rgba(255,138,61,.45);}
.stat-chip.orange b{color:#D96A1F;}
.hero-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow-2);
}
.hero-media::before{
  content:"";position:absolute;inset:-14px;border-radius:34px;background:var(--grad-soft);z-index:-1;
}
.hero-media img{width:100%;height:352px;object-fit:cover;}
.hero-media .media-cap{
  position:absolute;left:18px;bottom:18px;right:18px;
  background:rgba(21,15,43,.62);color:#fff;border-radius:var(--r-md);
  padding:12px 16px;font-size:13.5px;line-height:1.65;backdrop-filter:blur(4px);
}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.section-title{font-size:clamp(23px,3vw,32px);line-height:1.32;font-weight:700;}
.section-title span{color:var(--brand-1);}
.section-desc{margin-top:12px;font-size:15px;color:var(--ink-2);max-width:640px;}
.section-head .btn-text{align-self:center;}

/* ---------- 筛选 chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 18px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);color:var(--ink-2);
  font-size:14px;font-weight:500;transition:all var(--ease);
}
.chip i{font-size:12px;}
.chip:hover{color:var(--brand-1);border-color:rgba(109,75,246,.4);transform:translateY(-2px);box-shadow:var(--shadow-1);}
.chip.is-active{background:var(--grad-main);color:#fff;border-color:transparent;box-shadow:0 10px 22px rgba(109,75,246,.26);font-weight:600;}

/* ---------- 玩法大卡网格 ---------- */
.dim-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;}
.dim-card{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  display:flex;flex-direction:column;
}
.dim-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad-main);z-index:2;}
.dim-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(109,75,246,.28);}
.dim-media{position:relative;height:206px;overflow:hidden;background:#221a3f;}
.dim-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.dim-card:hover .dim-media img{transform:scale(1.05);}
.dim-tag{
  position:absolute;top:14px;left:14px;padding:6px 13px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;color:#fff;background:rgba(21,15,43,.68);backdrop-filter:blur(3px);
}
.dim-tag.hot{background:var(--grad-main);}
.dim-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.dim-title{font-size:20px;font-weight:600;display:flex;align-items:center;gap:10px;}
.dim-title i{font-size:16px;color:var(--brand-1);}
.dim-text{font-size:14.5px;color:var(--ink-2);line-height:1.8;}
.dim-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:auto;padding-top:16px;border-top:1px solid var(--line);}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:6px 13px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;
  background:rgba(109,75,246,.08);color:var(--brand-1);border:1px solid var(--line);
}
.badge.mint{background:rgba(22,224,161,.10);color:#0FA878;border-color:rgba(22,224,161,.32);}
.badge.orange{background:rgba(255,138,61,.10);color:#C7611A;border-color:rgba(255,138,61,.32);}
.badge.pink{background:rgba(255,95,162,.10);color:#D63B7E;border-color:rgba(255,95,162,.32);}
.dim-link{align-self:flex-start;color:var(--brand-1);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.dim-link:hover i{transform:translateX(3px);}
.dim-link i{transition:transform var(--ease);font-size:12px;}

/* ---------- 分页 / 页内跳转 ---------- */
.pager{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:12px;margin-top:44px;}
.pager-btn{
  display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);color:var(--ink-2);font-size:14px;font-weight:500;
  transition:all var(--ease);
}
.pager-btn:hover{color:var(--brand-1);border-color:rgba(109,75,246,.4);transform:translateY(-2px);box-shadow:var(--shadow-1);}
.pager-num{
  width:40px;height:40px;display:grid;place-items:center;border-radius:50%;
  background:#fff;border:1px solid var(--line);font-family:var(--num);font-size:14.5px;color:var(--ink-2);
}
.pager-num.is-current{background:var(--grad-main);color:#fff;border-color:transparent;font-weight:700;box-shadow:0 8px 20px rgba(109,75,246,.28);}

/* ---------- 节奏对照 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:26px;}
.compare-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--shadow-1);
}
.compare-card.is-plain{background:#F1EFF7;border-color:rgba(140,135,160,.24);}
.compare-card.is-brand{
  position:relative;border:1.5px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad-main);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:var(--shadow-2);
}
.compare-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px;}
.compare-head h3{font-size:19px;}
.compare-rows{display:flex;flex-direction:column;gap:20px;}
.compare-row{display:flex;flex-direction:column;gap:9px;}
.compare-row .row-top{display:flex;justify-content:space-between;align-items:baseline;font-size:14.5px;color:var(--ink-2);}
.compare-row .row-top b{font-family:var(--num);font-size:16px;color:var(--ink);}
.bar{height:8px;border-radius:99px;background:rgba(140,135,160,.18);overflow:hidden;}
.bar-fill{height:100%;border-radius:99px;background:var(--grad-main);}
.bar-fill.muted{background:rgba(140,135,160,.55);}
.bar-fill.mint{background:linear-gradient(90deg,#16E0A1,#31C1FF);}

/* ---------- 相关分类 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.related-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease);
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.related-media{height:140px;overflow:hidden;}
.related-media img{width:100%;height:100%;object-fit:cover;}
.related-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.related-body h3{font-size:17px;font-weight:600;}
.related-body p{font-size:14px;color:var(--ink-2);line-height:1.75;}
.related-body .btn-text{margin-top:auto;padding-top:8px;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:.85fr 2fr;gap:44px;align-items:start;}
.faq-side .section-title{font-size:clamp(22px,2.6vw,28px);}
.faq-side p{margin-top:14px;font-size:14.5px;color:var(--ink-2);}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-1);overflow:hidden;transition:box-shadow var(--ease);
}
.faq-item[open]{box-shadow:var(--shadow-2);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px 20px 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:600;color:var(--ink);position:relative;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--grad-main);opacity:0;transition:opacity var(--ease);
}
.faq-item[open] summary{color:var(--brand-1);}
.faq-item[open] summary::before{opacity:1;}
.faq-item summary .ico{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;
  background:var(--grad-soft);color:var(--brand-1);font-size:13px;
  transition:transform var(--ease),background var(--ease),color var(--ease);
}
.faq-item[open] summary .ico{transform:rotate(180deg);background:var(--grad-main);color:#fff;}
.faq-answer{padding:0 24px 22px 26px;font-size:14.5px;color:var(--ink-2);line-height:1.85;}

/* ---------- CTA ---------- */
.cta-band{padding:88px 0 0;}
.cta-card{
  position:relative;border-radius:var(--r-lg);padding:52px 48px;overflow:hidden;
  background:var(--bg-dark);color:#fff;
  display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:center;
}
.cta-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad-main);}
.cta-card::after{
  content:"";position:absolute;right:-90px;top:-70px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,95,162,.30),rgba(109,75,246,0) 68%);
}
.cta-copy h2{font-size:clamp(23px,3vw,30px);line-height:1.34;}
.cta-copy p{margin-top:14px;color:rgba(255,255,255,.76);font-size:15px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:1;}
.cta-actions .btn-outline{
  background-image:linear-gradient(#1d1638,#1d1638),var(--grad-main);
  color:#fff;
}
.cta-actions .btn-outline:hover{
  background-image:linear-gradient(135deg,rgba(109,75,246,.35),rgba(255,95,162,.28)),var(--grad-main);
  color:#fff;
}
.cta-facts{display:flex;flex-direction:column;gap:14px;position:relative;z-index:1;}
.cta-fact{
  display:flex;align-items:center;gap:12px;padding:14px 18px;border-radius:var(--r-md);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  font-size:14px;color:rgba(255,255,255,.86);
}
.cta-fact i{color:var(--mint);}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:88px;background:var(--bg-dark);color:rgba(255,255,255,.72);
  border-radius:var(--r-lg) var(--r-lg) 0 0;padding:64px 0 28px;position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;border-radius:var(--r-lg) var(--r-lg) 0 0;
  background:var(--grad-main);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand .logo-name{color:#fff;}
.footer-brand .logo-sub{color:rgba(255,255,255,.5);}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:330px;}
.footer-badges{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px;}
.footer-badges .badge{background:rgba(255,255,255,.08);color:rgba(255,255,255,.82);border-color:rgba(255,255,255,.16);}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.68);}
.footer-links a:hover{color:#fff;}
.footer-contact{display:flex;flex-direction:column;gap:12px;}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.68);line-height:1.7;}
.footer-contact i{color:var(--brand-2);margin-top:5px;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;font-size:13px;color:rgba(255,255,255,.56);
}
.footer-bottom-links{display:flex;flex-wrap:wrap;gap:16px;margin-left:auto;}
.footer-bottom-links a{color:rgba(255,255,255,.62);font-size:13px;}
.footer-bottom-links a:hover{color:#fff;}
.to-top{
  width:42px;height:42px;border-radius:50%;background:var(--grad-main);color:#fff;
  display:grid;place-items:center;box-shadow:0 10px 24px rgba(109,75,246,.35);
  transition:transform var(--ease),filter var(--ease);
}
.to-top:hover{transform:translateY(-3px);filter:brightness(1.08);}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .nav-links{margin-left:0;}
}
@media (max-width:1024px){
  .nav-links,.header-actions{display:none;}
  .nav-toggle{display:grid;place-items:center;margin-left:auto;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-media img{height:300px;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .faq-grid{grid-template-columns:1fr;gap:28px;}
  .cta-card{grid-template-columns:1fr;padding:42px 34px;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .topbar-tip,.topbar-link{display:none;}
  .section{padding:64px 0 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:26px;}
  .dim-grid{grid-template-columns:1fr;}
  .compare{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .footer-bottom-links{margin-left:0;}
  .cta-band{padding:64px 0 0;}
  .site-footer{margin-top:64px;padding:48px 0 24px;}
}
@media (max-width:520px){
  body{font-size:15px;}
  .hero-title{font-size:26px;}
  .hero-lead{font-size:15.5px;}
  .hero-media img{height:220px;}
  .dim-media{height:170px;}
  .dim-body{padding:20px 20px 22px;}
  .btn{padding:12px 18px;font-size:14px;}
  .hero-stats{gap:10px;}
  .stat-chip{padding:8px 13px;font-size:12.5px;}
  .stat-chip b{font-size:15px;}
  .compare-card{padding:22px;}
  .cta-card{padding:32px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .pager{gap:8px;}
  .pager-btn{padding:10px 14px;font-size:13px;}
}

/* roulang page: category3 */
:root{
  --brand-1:#6D4BF6;
  --brand-2:#FF5FA2;
  --accent:#FF8A3D;
  --mint:#16E0A1;
  --warn:#FF6B6B;
  --ink:#1B1430;
  --ink-2:#5A5470;
  --ink-3:#8C87A0;
  --bg:#F6F4FC;
  --bg-dark:#150F2B;
  --card:#FFFFFF;
  --line:rgba(109,75,246,.14);
  --grad-main:linear-gradient(100deg,#6D4BF6 0%,#A94BFF 45%,#FF5FA2 100%);
  --grad-soft:linear-gradient(135deg,rgba(109,75,246,.10),rgba(255,95,162,.08));
  --r-lg:26px;
  --r-md:18px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-1:0 6px 20px rgba(58,32,120,.07);
  --shadow-2:0 18px 44px rgba(58,32,120,.14);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  --num:"Barlow","DIN Alternate",ui-monospace,SFMono-Regular,Menlo,monospace;
  --gutter:24px;
  --section-y:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;border:0}
a{color:inherit;text-decoration:none}
button{cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.32}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;border-radius:6px}
::selection{background:rgba(109,75,246,.18)}

.container{max-width:1180px;margin:0 auto;padding:0 var(--gutter);width:100%}
.section{padding:var(--section-y) 0}
.section-tight{padding:56px 0}
.section-head{max-width:720px;margin-bottom:34px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--brand-1);background:rgba(109,75,246,.08);
  border:1px solid var(--line);border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:16px;
}
.eyebrow i{font-size:12px}
.section-title{font-size:clamp(23px,3vw,32px);margin-bottom:14px}
.section-sub{font-size:16px;color:var(--ink-2);margin:0;max-width:660px}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--bg-dark);color:rgba(255,255,255,.82);font-size:13px;height:40px;display:flex;align-items:center}
.topbar-inner{display:flex;align-items:center;gap:18px}
.topbar-domain{
  font-family:var(--num);letter-spacing:.06em;color:#fff;
  display:inline-flex;align-items:center;gap:10px;
}
.topbar-domain::after{content:"";width:1px;height:14px;background:rgba(255,255,255,.22)}
.topbar-note{color:rgba(255,255,255,.68);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.topbar-link{color:rgba(255,255,255,.78);transition:color .25s var(--ease)}
.topbar-link:hover{color:#fff}
.topbar .btn{padding:6px 16px;font-size:13px}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease),height .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.header-inner{display:flex;align-items:center;gap:26px;height:68px;transition:height .25s var(--ease)}
.site-header.is-scrolled .header-inner{height:60px}
.logo{display:inline-flex;align-items:center;gap:11px;flex-shrink:0}
.logo-mark{
  width:40px;height:40px;border-radius:13px;background:var(--grad-main);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:17px;box-shadow:0 8px 18px rgba(109,75,246,.3);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-name{font-size:16px;font-weight:700;letter-spacing:.01em}
.logo-sub{font-size:11px;color:var(--brand-1);letter-spacing:.22em;font-weight:600}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 14px;border-radius:10px;
  font-size:14px;color:var(--ink-2);
  transition:background .25s var(--ease),color .25s var(--ease);
}
.nav-link:hover{background:var(--grad-soft);color:var(--ink)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:2px;width:22px;height:3px;border-radius:3px;background:var(--grad-main);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:16px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);color:var(--ink);font-size:17px;
  align-items:center;justify-content:center;transition:background .25s var(--ease);
}
.nav-toggle:hover{background:var(--grad-soft)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),filter .25s var(--ease),background .25s var(--ease);
  white-space:nowrap;
}
.btn i{font-size:13px;transition:transform .25s var(--ease)}
.btn-grad{background:var(--grad-main);color:#fff;box-shadow:0 10px 24px rgba(109,75,246,.26)}
.btn-grad:hover{filter:brightness(1.06);box-shadow:0 14px 30px rgba(109,75,246,.34);transform:translateY(-2px)}
.btn-ghost{
  color:var(--ink);background:#fff;
  border:1.5px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad-main);
  background-origin:border-box;background-clip:padding-box,border-box;
}
.btn-ghost:hover{background-image:var(--grad-soft),var(--grad-main);transform:translateY(-2px)}
.btn-sm{min-height:38px;padding:0 18px;font-size:13.5px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.6;cursor:not-allowed;transform:none;filter:none}
.text-link{
  display:inline-flex;align-items:center;gap:7px;
  color:var(--brand-1);font-size:14.5px;font-weight:600;
  transition:color .25s var(--ease);
}
.text-link i{transition:transform .25s var(--ease)}
.text-link:hover i{transform:translateX(3px)}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;line-height:1.4;
  background:#fff;border:1px solid var(--line);color:var(--ink-2);
}
.badge-mint{background:rgba(22,224,161,.12);border-color:rgba(22,224,161,.35);color:#0B8A63}
.badge-accent{background:rgba(255,138,61,.13);border-color:rgba(255,138,61,.38);color:#B85717}
.badge-pink{background:rgba(255,95,162,.12);border-color:rgba(255,95,162,.35);color:#B62B69}
.badge i{font-size:11px}

/* ---------- 页头 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:52px 0 64px;
  background:var(--bg);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;
  opacity:.14;
}
.page-hero::after{
  content:"";position:absolute;right:-160px;top:-120px;width:460px;height:460px;border-radius:50%;
  background:var(--grad-soft);filter:blur(6px);pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:44px;align-items:center}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--ink-3);margin-bottom:18px;
}
.breadcrumb a{color:var(--ink-2);transition:color .25s var(--ease)}
.breadcrumb a:hover{color:var(--brand-1)}
.breadcrumb span.sep{color:var(--ink-3)}
.page-hero h1{font-size:clamp(30px,4.6vw,46px);line-height:1.2;margin-bottom:18px}
.page-hero h1 em{
  font-style:normal;
  background:var(--grad-main);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{font-size:17px;color:var(--ink-2);max-width:620px;margin-bottom:22px}
.hero-line{width:96px;height:4px;border-radius:4px;background:var(--grad-main);margin-bottom:24px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px}
.hero-visual{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-2);
  background:#fff;
}
.hero-visual img{width:100%;height:260px;object-fit:cover}
.hero-visual figcaption{
  padding:14px 18px;font-size:13.5px;color:var(--ink-2);
  display:flex;align-items:center;gap:8px;
  border-top:1px solid var(--line);background:#fff;
}
.hero-visual figcaption i{color:var(--brand-1)}

/* ---------- 指引布局 ---------- */
.guide-layout{display:grid;grid-template-columns:minmax(220px,262px) minmax(0,1fr);gap:44px;align-items:start}
.toc{position:sticky;top:104px}
.toc-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px 20px;box-shadow:var(--shadow-1);
}
.toc-title{font-size:15px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.toc-title i{color:var(--brand-1);font-size:13px}
.toc-list{display:flex;flex-direction:column;gap:4px}
.toc-link{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:12px;
  font-size:14px;color:var(--ink-2);
  border-left:3px solid transparent;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.toc-link:hover{background:var(--grad-soft);color:var(--ink);border-left-color:var(--brand-1)}
.toc-link i{font-size:11px;color:var(--brand-1)}
.toc-tip{
  margin-top:18px;padding:16px;border-radius:var(--r-md);
  background:var(--grad-soft);font-size:13.5px;color:var(--ink-2);line-height:1.75;
}
.toc-tip strong{display:block;color:var(--ink);font-size:14px;margin-bottom:6px}

/* ---------- 步骤时间轴 ---------- */
.steps{position:relative;padding-left:6px}
.steps::before{
  content:"";position:absolute;left:23px;top:14px;bottom:34px;width:2px;
  background:var(--line);border-radius:2px;
}
.step{position:relative;display:grid;grid-template-columns:48px minmax(0,1fr);gap:20px;padding-bottom:26px}
.step:last-child{padding-bottom:0}
.step-num{
  position:relative;z-index:2;
  width:48px;height:48px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--num);font-size:17px;font-weight:700;
  color:var(--brand-1);background:#fff;
  border:2px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad-main);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:var(--shadow-1);
}
.step-body{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px 26px;transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.step-body:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.step-title{font-size:19px;margin-bottom:8px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.step-text{color:var(--ink-2);font-size:15px;margin:0 0 12px}
.step-tips{display:flex;flex-wrap:wrap;gap:8px}
.step-tips span{
  font-size:12.5px;color:var(--ink-2);
  background:rgba(109,75,246,.07);border:1px solid var(--line);
  border-radius:var(--r-pill);padding:4px 11px;
}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.faq-col{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  overflow:hidden;transition:box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.faq-item:hover{box-shadow:var(--shadow-1)}
.faq-item.is-open{border-color:rgba(109,75,246,.35);box-shadow:var(--shadow-1)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;
  padding:18px 20px;text-align:left;font-size:15.5px;font-weight:600;color:var(--ink);
  transition:color .25s var(--ease);
}
.faq-q-text{flex:1;min-width:0}
.faq-icon{
  flex-shrink:0;width:28px;height:28px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;color:#fff;background:var(--grad-main);
  transition:transform .3s var(--ease);
}
.faq-item.is-open .faq-q{color:var(--brand-1)}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s var(--ease)}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a-inner p{
  margin:0;padding:0 20px 20px 20px;
  font-size:14.5px;color:var(--ink-2);line-height:1.85;
  border-left:3px solid transparent;
  padding-left:20px;
}
.faq-item.is-open .faq-a-inner p{border-left:3px solid transparent}
.faq-a-inner .faq-line{height:1px;background:var(--line);margin:0 20px 16px}

/* ---------- 数据小结 ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;
}
.metric{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:24px 24px 22px;
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.metric::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--grad-main)}
.metric:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.metric-num{
  font-family:var(--num);font-variant-numeric:tabular-nums;
  font-size:clamp(34px,4vw,46px);font-weight:700;line-height:1;
  color:var(--ink);margin-bottom:10px;
}
.metric-num small{font-size:16px;font-weight:600;margin-left:4px;color:var(--ink-2)}
.metric-num.is-mint{color:#0B8A63}
.metric-num.is-pink{color:#B62B69}
.metric-num.is-accent{color:#B85717}
.metric-label{font-size:14px;font-weight:600;color:var(--ink)}
.metric-note{font-size:13px;color:var(--ink-3);margin-top:4px}

/* ---------- 帮助入口 ---------- */
.help-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--shadow-1);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
  display:flex;flex-direction:column;height:100%;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.card-icon{
  width:46px;height:46px;border-radius:14px;background:var(--grad-soft);
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  color:var(--brand-1);font-size:18px;margin-bottom:16px;
}
.card h3{font-size:18px;margin-bottom:10px}
.card p{font-size:14.5px;color:var(--ink-2);margin-bottom:18px}
.card .text-link{margin-top:auto}

/* ---------- CTA 横幅 ---------- */
.cta-banner{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:var(--bg-dark);
  padding:52px 48px;box-shadow:var(--shadow-2);
}
.cta-banner::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;opacity:.22;
}
.cta-banner::after{
  content:"";position:absolute;right:-120px;bottom:-140px;width:380px;height:380px;border-radius:50%;
  background:var(--grad-main);opacity:.28;filter:blur(30px);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;gap:32px;flex-wrap:wrap}
.cta-copy{flex:1 1 420px;min-width:0}
.cta-copy .badge{margin-bottom:14px;background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.24);color:#fff}
.cta-title{color:#fff;font-size:clamp(22px,2.6vw,28px);margin-bottom:12px}
.cta-text{color:rgba(255,255,255,.75);font-size:15px;margin:0;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-actions .btn-ghost{background-image:linear-gradient(rgba(255,255,255,.08),rgba(255,255,255,.08)),var(--grad-main);color:#fff}
.cta-actions .btn-ghost:hover{background-image:linear-gradient(rgba(255,255,255,.18),rgba(255,255,255,.18)),var(--grad-main)}
.cta-actions .btn-grad{box-shadow:0 12px 28px rgba(255,95,162,.28)}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;background:var(--bg-dark);color:rgba(255,255,255,.72);
  border-radius:var(--r-lg) var(--r-lg) 0 0;
  margin-top:88px;padding:64px 0 26px;overflow:hidden;
}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--grad-main)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:34px}
.footer-brand .logo-name{color:#fff}
.footer-brand .logo-sub{color:var(--brand-2)}
.footer-desc{font-size:14px;color:rgba(255,255,255,.62);margin:18px 0 16px;max-width:340px;line-height:1.85}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px}
.footer-badges .badge{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.18);color:rgba(255,255,255,.82)}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.68);transition:color .25s var(--ease),transform .25s var(--ease);display:inline-block}
.footer-links a:hover{color:#fff;transform:translateX(3px)}
.footer-contact{display:flex;flex-direction:column;gap:12px}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.68);line-height:1.7}
.footer-contact i{color:var(--brand-2);margin-top:5px;font-size:13px}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;gap:18px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom-links{display:flex;gap:18px;margin-left:auto}
.footer-bottom-links a{color:rgba(255,255,255,.62);transition:color .25s var(--ease)}
.footer-bottom-links a:hover{color:#fff}
.to-top{
  width:42px;height:42px;border-radius:50%;background:var(--grad-main);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:14px;
  box-shadow:0 10px 22px rgba(109,75,246,.34);
  transition:transform .25s var(--ease),filter .25s var(--ease);
}
.to-top:hover{transform:translateY(-3px);filter:brightness(1.06)}

/* ---------- 移动端抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(21,15,43,.5);
  opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,84vw);
  background:#fff;z-index:90;transform:translateX(102%);
  transition:transform .3s var(--ease);
  display:flex;flex-direction:column;padding:22px 20px;
  box-shadow:-18px 0 44px rgba(58,32,120,.18);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--ink);
}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-nav a{
  padding:12px 14px;border-radius:12px;font-size:15px;color:var(--ink-2);
  border-left:3px solid transparent;transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:var(--grad-soft);color:var(--ink);border-left-color:var(--brand-1)}
.drawer-tip{margin:22px 0;padding:14px 16px;border-radius:var(--r-md);background:var(--grad-soft);font-size:13.5px;color:var(--ink-2)}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero-grid{grid-template-columns:1fr .8fr;gap:32px}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .help-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
  .footer-col:last-child{grid-column:1 / -1}
}
@media (max-width:1023px){
  :root{--section-y:64px}
  .nav-links,.header-actions .text-link{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions{gap:10px}
  .guide-layout{grid-template-columns:1fr;gap:30px}
  .toc{position:static}
  .toc-list{flex-direction:row;overflow-x:auto;padding-bottom:6px;gap:8px}
  .toc-link{border-left:0;border:1px solid var(--line);white-space:nowrap;border-radius:var(--r-pill);padding:8px 14px}
  .toc-link:hover{border-left:0;border-color:var(--brand-1)}
  .hero-grid{grid-template-columns:1fr;gap:26px}
  .hero-visual img{height:220px}
  .faq-grid{grid-template-columns:1fr}
}
@media (max-width:767px){
  :root{--section-y:48px;--gutter:18px}
  .topbar-note{display:none}
  .topbar{height:42px}
  .topbar-inner{gap:12px}
  .logo-name{font-size:15px}
  .logo-mark{width:36px;height:36px;border-radius:12px;font-size:15px}
  .page-hero{padding:36px 0 44px}
  .hero-lead{font-size:15.5px}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
  .help-grid{grid-template-columns:1fr}
  .step{grid-template-columns:40px minmax(0,1fr);gap:14px}
  .steps::before{left:19px}
  .step-num{width:40px;height:40px;font-size:15px}
  .step-body{padding:20px}
  .cta-banner{padding:36px 24px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}
  .footer-bottom-links{margin-left:0;flex-wrap:wrap}
}
@media (max-width:519px){
  .page-hero h1{font-size:26px}
  .section-title{font-size:22px}
  .metric-num{font-size:32px}
  .btn{min-height:44px;padding:0 18px;font-size:14.5px}
  .hero-badges .badge{font-size:12px}
  .faq-q{font-size:14.5px;padding:16px}
  .footer-brand .logo-name{font-size:16px}
}