/* roulang page: index */
:root{
  --c-primary:#4B2E83;
  --c-primary-deep:#2E1B52;
  --c-accent:#FF8A3D;
  --c-accent-soft:#FFE4D1;
  --c-mint:#17BFA8;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-dark:#17121F;
  --c-border:#E7E2DA;
  --c-text:#1C1720;
  --c-text-2:#4A4552;
  --c-text-3:#8A8494;
  --c-danger:#D9534F;
  --radius-s:8px;
  --radius-m:12px;
  --radius-l:16px;
  --radius-pill:999px;
  --shadow-1:0 2px 10px rgba(23,18,31,.06);
  --shadow-2:0 12px 28px rgba(46,27,82,.14);
  --dur:.22s;
  --ease: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","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  color:var(--c-text);
  background:var(--c-bg);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease)}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--surface{background:var(--c-surface)}
.section--tight{padding:72px 0}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--c-dark);color:#EDE9F2;font-size:13px;height:36px;display:flex;align-items:center}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%}
.topbar-left{display:flex;align-items:center;gap:14px;min-width:0}
.topbar-domain{color:#FFFFFF;font-weight:600;letter-spacing:.04em;white-space:nowrap}
.topbar-tip{color:#B9B2C6;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:46vw}
.topbar-right{display:flex;align-items:center;gap:10px;white-space:nowrap}
.topbar-right a{color:#D6D0E0}
.topbar-right a:hover{color:var(--c-accent)}
.topbar-right .sep{width:1px;height:12px;background:rgba(255,255,255,.24)}

/* ============ 主导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:var(--c-surface);border-bottom:1px solid var(--c-border);transition:box-shadow var(--dur) var(--ease)}
.site-header.is-stuck{box-shadow:var(--shadow-1)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,#5A3A96,var(--c-primary));display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-1)}
.logo-mark svg{width:19px;height:19px}
.logo-text{font-size:19px;font-weight:700;letter-spacing:.01em;color:var(--c-primary-deep);white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;flex-wrap:nowrap}
.nav-link{position:relative;padding:0 12px;height:68px;display:flex;align-items:center;font-size:15px;color:var(--c-text-2);white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:14px;height:2px;border-radius:2px;background:var(--c-primary);transform:scaleX(0);transform-origin:center;transition:transform var(--dur) var(--ease)}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px}
.hamburger{display:none;width:44px;height:44px;border:1px solid var(--c-border);background:var(--c-surface);border-radius:var(--radius-s);align-items:center;justify-content:center}
.hamburger span{display:block;width:18px;height:2px;background:var(--c-text);position:relative}
.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-text)}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}
.hamburger:hover{background:rgba(75,46,131,.06);border-color:var(--c-primary)}

/* ============ 移动抽屉 ============ */
.drawer-overlay{position:fixed;inset:0;background:rgba(23,18,31,.48);opacity:0;visibility:hidden;transition:opacity var(--dur) var(--ease);z-index:80}
.drawer-overlay.is-open{opacity:1;visibility:visible}
.mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:290px;max-width:86vw;background:var(--c-surface);z-index:90;transform:translateX(100%);transition:transform var(--dur) var(--ease);padding:22px;display:flex;flex-direction:column;gap:6px;overflow-y:auto}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-title{font-size:13px;color:var(--c-text-3);letter-spacing:.08em;margin-bottom:6px}
.drawer-link{padding:13px 10px;border-radius:var(--radius-s);font-size:16px;color:var(--c-text-2);border-bottom:1px solid var(--c-border)}
.drawer-link:hover{background:rgba(75,46,131,.06);color:var(--c-primary)}
.drawer-link.is-active{color:var(--c-primary);font-weight:600;background:rgba(75,46,131,.06)}
.mobile-drawer .btn{margin-top:16px;width:100%}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;line-height:1.2;padding:12px 22px;border-radius:10px;border:1px solid transparent;text-align:center;transition:background var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.btn:active{transform:translateY(0) scale(.99)}
.btn-primary{background:linear-gradient(135deg,#5A3A96,var(--c-primary));color:#fff}
.btn-primary:hover{background:var(--c-primary-deep);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover{background:rgba(75,46,131,.08);transform:translateY(-1px)}
.btn-accent{background:linear-gradient(135deg,#FFA05C,var(--c-accent));color:#2E1B52}
.btn-accent:hover{background:#F5792A;color:#1C1720;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:9px}
.btn[disabled],.btn:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ Hero ============ */
.hero{padding:64px 0 72px;background:var(--c-bg)}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-primary);background:rgba(75,46,131,.08);border-radius:var(--radius-pill);padding:5px 14px;margin-bottom:18px}
.hero-kicker i{width:7px;height:7px;border-radius:50%;background:var(--c-mint);display:inline-block}
h1{font-size:36px;line-height:1.35;font-weight:700;letter-spacing:.01em;color:var(--c-text)}
.hero-sub{margin-top:16px;font-size:18px;line-height:1.75;color:var(--c-text-2);max-width:31em}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-trust{margin-top:20px;font-size:13px;color:var(--c-text-3)}
.hero-visual{position:relative;border-radius:var(--radius-l);overflow:hidden;height:520px;background:#E4DFD8;box-shadow:var(--shadow-2)}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(46,27,82,.42),rgba(75,46,131,.26));}
.status-badge{position:absolute;right:18px;bottom:18px;z-index:2;display:inline-flex;align-items:center;gap:7px;background:rgba(255,255,255,.94);color:var(--c-primary-deep);font-size:13px;font-weight:600;padding:7px 14px;border-radius:var(--radius-pill);box-shadow:var(--shadow-1)}
.status-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--c-mint);box-shadow:0 0 0 4px rgba(23,191,168,.18)}

/* ============ 通用板块标题 ============ */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-title{position:relative;padding-left:16px;font-size:26px;line-height:1.4;font-weight:600;color:var(--c-text)}
.section-title::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:2px;background:var(--c-primary)}
.section-desc{margin-top:12px;font-size:16px;color:var(--c-text-2);max-width:60ch}
.link-more{font-size:14px;font-weight:600;color:var(--c-primary);white-space:nowrap}
.link-more:hover{color:var(--c-accent)}

/* ============ 痛点段 ============ */
.pain-grid{display:grid;grid-template-columns:300px 1fr;gap:48px;align-items:start}
.pain-list{display:grid;gap:20px}
.pain-item{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-m);padding:20px 22px;box-shadow:var(--shadow-1);font-size:16px;color:var(--c-text-2)}
.pain-item b{color:var(--c-text);font-weight:600}

/* ============ 解决方案段 ============ */
.solution-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.sol-card{grid-column:span 12;position:relative;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-l);box-shadow:var(--shadow-1);padding:26px;overflow:hidden;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
.sol-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform var(--dur) var(--ease)}
.sol-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.sol-card:hover::before{transform:scaleX(1)}
.sol-card:nth-child(1){grid-column:span 7}
.sol-card:nth-child(2){grid-column:span 5}
.sol-card:nth-child(3){grid-column:span 5}
.sol-card:nth-child(4){grid-column:span 7}
.sol-icon{width:44px;height:44px;border-radius:12px;background:rgba(75,46,131,.08);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.sol-icon svg{width:22px;height:22px;stroke:var(--c-primary);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.sol-card h3{font-size:19px;font-weight:600;margin-bottom:8px}
.sol-card p{font-size:15.5px;color:var(--c-text-2)}

/* ============ 成果数据段 ============ */
.stats-band{background:var(--c-surface);border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:8px 26px;position:relative}
.stat + .stat::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:1px;background:var(--c-border)}
.stat-num{font-size:44px;line-height:1.15;font-weight:700;color:var(--c-primary)}
.stat:nth-child(2) .stat-num{color:var(--c-accent)}
.stat-label{margin-top:8px;font-size:13px;color:var(--c-text-3)}

/* ============ 证言段 ============ */
.quote-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.quote-card{background:rgba(75,46,131,.04);border-left:3px solid var(--c-primary);border-radius:var(--radius-m);padding:28px 26px}
.quote-mark{font-size:40px;line-height:1;color:var(--c-primary);opacity:.5;font-family:Georgia,serif}
.quote-card p{margin-top:10px;font-size:18px;line-height:1.8;color:var(--c-text)}
.quote-meta{margin-top:18px;font-size:13px;color:var(--c-text-3)}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;gap:24px}
.news-sub{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{position:relative;display:block;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-l);box-shadow:var(--shadow-1);overflow:hidden;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
.card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform var(--dur) var(--ease);z-index:3}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.card:hover::before{transform:scaleX(1)}
.card:hover .card-title{color:var(--c-primary)}
.thumb{position:relative;aspect-ratio:16/9;background:#E6E1D9;overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.card:hover .thumb img{transform:scale(1.04)}
.card-body{padding:20px 22px 22px}
.card-title{font-size:19px;font-weight:600;line-height:1.5;margin-bottom:8px;color:var(--c-text);transition:color var(--dur) var(--ease);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-excerpt{font-size:15px;color:var(--c-text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;gap:12px;margin-top:16px;font-size:12px;color:var(--c-text-3)}
.badge{display:inline-block;font-size:12px;font-weight:600;padding:3px 10px;border-radius:var(--radius-pill);background:var(--c-accent-soft);color:var(--c-primary)}
.news-feature{display:grid;grid-template-columns:minmax(0,44%) 1fr;align-items:stretch}
.news-feature .thumb{aspect-ratio:auto;height:100%;min-height:260px}
.news-feature .card-body{padding:30px 32px;display:flex;flex-direction:column;justify-content:center}
.news-feature .card-title{font-size:23px;-webkit-line-clamp:3}
.news-feature .card-excerpt{font-size:16px;-webkit-line-clamp:3}
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;height:220px;background:var(--c-surface);border:1px dashed var(--c-border);border-radius:var(--radius-l);color:var(--c-text-3);font-size:14px}
.empty-state svg{width:30px;height:30px;stroke:var(--c-text-3);fill:none;stroke-width:1.6}

/* ============ FAQ ============ */
.faq-list{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-l);overflow:hidden;box-shadow:var(--shadow-1)}
.faq-item + .faq-item{border-top:1px solid var(--c-border)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:22px 24px;font-size:17px;font-weight:600;cursor:pointer;list-style:none;transition:background var(--dur) var(--ease),color var(--dur) var(--ease)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:rgba(75,46,131,.04);color:var(--c-primary)}
.faq-icon{flex-shrink:0;width:26px;height:26px;border-radius:50%;background:rgba(75,46,131,.08);color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:16px;line-height:1;transition:transform var(--dur) var(--ease),background var(--dur) var(--ease)}
.faq-item[open] summary{color:var(--c-primary)}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--c-accent-soft)}
.faq-answer{padding:0 24px 20px;font-size:15px;line-height:1.85;color:var(--c-text-2)}

/* ============ CTA 带 ============ */
.cta-band{background:var(--c-dark);color:#EFEBF5;padding:76px 0}
.cta-inner{display:grid;grid-template-columns:1fr .95fr;gap:48px;align-items:center}
.cta-band h2{font-size:28px;font-weight:600;line-height:1.4;color:#fff}
.cta-band p{margin-top:14px;font-size:16px;color:#B9B2C6;max-width:34ch}
.form-card{background:var(--c-surface);border-radius:var(--radius-l);padding:26px;box-shadow:var(--shadow-2);color:var(--c-text)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field--full{grid-column:span 2}
.field label{font-size:13px;font-weight:600;color:var(--c-text-2)}
.field input,.field textarea{font-size:15px;padding:13px 14px;border:1px solid var(--c-border);border-radius:var(--radius-s);background:#FCFBF9;transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
.field textarea{resize:vertical;min-height:92px;line-height:1.7}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(255,138,61,.18)}
.field input::placeholder,.field textarea::placeholder{color:#B4AEB9}
.form-foot{grid-column:span 2;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.form-hint{font-size:12px;color:var(--c-text-3)}
.form-error{grid-column:span 2;display:none;font-size:12px;color:var(--c-danger)}
.form-error.is-visible{display:block}
.form-ok{grid-column:span 2;display:none;font-size:13px;color:var(--c-mint);font-weight:600}
.form-ok.is-visible{display:block}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-dark);color:#C9C3D4;padding:64px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:0}
.footer-col{padding:0 24px}
.footer-col:first-child{padding-left:0}
.footer-col:last-child{padding-right:0}
.footer-col + .footer-col{border-left:1px solid rgba(255,255,255,.1)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .logo-mark{background:linear-gradient(135deg,#5A3A96,var(--c-primary))}
.footer-brand span{font-size:17px;font-weight:700;color:#fff}
.footer-text{color:#A79FB6;line-height:1.85;font-size:13.5px}
.footer-h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a:hover{color:var(--c-accent)}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8E8799}

/* ============ 响应式 ============ */
@media (max-width:1080px){
  .main-nav,.nav-actions .btn{display:none}
  .hamburger{display:flex}
  .hero-inner{gap:34px}
  .pain-grid{grid-template-columns:1fr;gap:28px}
}
@media (max-width:900px){
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .hero{padding:44px 0 56px}
  .hero-inner{grid-template-columns:1fr}
  .hero-visual{height:380px;order:2}
  .hero-copy{order:1}
  h1{font-size:29px}
  .sol-card:nth-child(n){grid-column:span 12}
  .quote-grid{grid-template-columns:1fr}
  .news-sub{grid-template-columns:1fr 1fr}
  .news-feature{grid-template-columns:1fr}
  .news-feature .thumb{min-height:0;aspect-ratio:16/9;height:auto}
  .cta-inner{grid-template-columns:1fr;gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 0}
  .footer-col{padding:0}
  .footer-col + .footer-col{border-left:0}
  .footer-col:nth-child(even){border-left:1px solid rgba(255,255,255,.1);padding-left:20px}
  .stats-grid{grid-template-columns:1fr 1fr;gap:24px 0}
  .stat{padding:0 18px}
  .stat:nth-child(odd){padding-left:0}
  .stat + .stat::before{display:none}
}
@media (max-width:640px){
  body{font-size:16px}
  .container{padding:0 20px}
  h1{font-size:26px}
  .section-title{font-size:22px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  .card-body{padding:16px}
  .news-feature .card-body{padding:20px}
  .news-sub{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .field--full,.form-foot,.form-error,.form-ok{grid-column:span 1}
  .form-foot{flex-direction:column;align-items:stretch}
  .form-foot .btn{width:100%}
  .hero-btns .btn{width:100%}
  .stat-num{font-size:34px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-col:nth-child(even){border-left:0;padding-left:0}
  .cta-band{padding:56px 0}
  .quote-card p{font-size:16.5px}
}
@media (max-width:420px){
  .topbar-tip{max-width:52vw;font-size:12px}
  .topbar-right{display:none}
  .logo-text{font-size:17px}
  .hero-trust{display:none}
}

/* roulang page: article */
:root{
  --c-primary:#4B2E83;
  --c-primary-deep:#2E1B52;
  --c-accent:#FF8A3D;
  --c-accent-soft:#FFE4D1;
  --c-mint:#17BFA8;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-dark:#17121F;
  --c-border:#E7E2DA;
  --c-text:#1C1720;
  --c-text-2:#4A4552;
  --c-text-3:#8A8494;
  --radius-s:8px;
  --radius-m:12px;
  --radius-l:16px;
  --radius-pill:999px;
  --shadow-1:0 2px 10px rgba(23,18,31,.06);
  --shadow-2:0 12px 28px rgba(46,27,82,.14);
  --dur:.22s;
  --ease:cubic-bezier(.2,.7,.3,1);
  --font: "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  color:var(--c-text);
  background:var(--c-bg);
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--dur) var(--ease);}
a:hover{color:var(--c-primary-deep);}
button,input,textarea{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:600;color:var(--c-text);line-height:1.35;}
p{margin:0;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--c-dark);color:#CFC9D6;font-size:13px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:36px;gap:16px;}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:10px;min-width:0;}
.topbar-domain{color:#fff;font-weight:600;letter-spacing:.04em;}
.topbar-tip{color:#9C95A8;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-right a{color:#D8D2E2;font-size:13px;}
.topbar-right a:hover{color:var(--c-accent);}
.topbar .divider{width:1px;height:12px;background:rgba(255,255,255,.18);display:inline-block;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow var(--dur) var(--ease);
}
.site-header.is-stuck{box-shadow:var(--shadow-1);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--c-text);}
.brand:hover{color:var(--c-primary);}
.logo-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-deep));
  display:flex;align-items:center;justify-content:center;
}
.logo-mark svg{width:19px;height:19px;}
.brand-text{white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:2px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:68px;
  padding:0 14px;font-size:15px;font-weight:500;color:var(--c-text-2);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:16px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-border);border-radius:var(--radius-s);
  background:var(--c-surface);cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:4px;
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-text-2);transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);}
.nav-toggle:hover{border-color:var(--c-primary);background:#F4F1FA;}
.drawer{
  position:fixed;top:0;right:0;z-index:90;width:min(320px,86vw);height:100%;
  background:var(--c-surface);box-shadow:var(--shadow-2);
  transform:translateX(102%);transition:transform var(--dur) var(--ease);
  padding:22px 22px 32px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-mask{
  position:fixed;inset:0;z-index:80;background:rgba(23,18,31,.48);
  opacity:0;visibility:hidden;transition:opacity var(--dur) var(--ease),visibility var(--dur) var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-title{font-size:16px;font-weight:700;}
.drawer-close{width:40px;height:40px;border:1px solid var(--c-border);border-radius:var(--radius-s);background:#fff;cursor:pointer;font-size:18px;line-height:1;color:var(--c-text-2);}
.drawer-close:hover{border-color:var(--c-primary);color:var(--c-primary);}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{padding:14px 4px;font-size:16px;color:var(--c-text-2);border-bottom:1px solid var(--c-border);min-height:44px;display:flex;align-items:center;}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--c-primary);font-weight:600;}
.drawer .btn{margin-top:22px;width:100%;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:10px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),
             color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 2px 8px rgba(75,46,131,.22);}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-secondary{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-secondary:hover{background:rgba(75,46,131,.08);color:var(--c-primary-deep);transform:translateY(-1px);}
.btn-accent{background:var(--c-accent);color:#3A1F0A;}
.btn-accent:hover{background:#F97B29;color:#331A06;transform:translateY(-1px);box-shadow:0 10px 22px rgba(255,138,61,.32);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn:disabled,.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 文章头 ============ */
.article-hero{
  position:relative;
  padding:40px 0 104px;
  color:#fff;
  background-image:linear-gradient(135deg,rgba(46,27,82,.94),rgba(75,46,131,.80)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center center;
}
.article-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:rgba(255,255,255,.14);
}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:20px;}
.breadcrumb a{color:rgba(255,255,255,.86);}
.breadcrumb a:hover{color:var(--c-accent);}
.breadcrumb .sep{color:rgba(255,255,255,.42);}
.breadcrumb .current{color:rgba(255,255,255,.7);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-title{
  font-size:36px;line-height:1.35;font-weight:700;color:#fff;max-width:880px;margin-bottom:18px;
}
.article-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.78);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.45);}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--radius-pill);
  background:var(--c-accent-soft);color:var(--c-primary);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.article-meta .badge{background:rgba(255,255,255,.16);color:#fff;}

/* ============ 文章容器 ============ */
.article-shell{margin-top:-68px;position:relative;z-index:2;}
.article-body{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);padding:44px 48px 36px;
}
.article-content{max-width:760px;margin:0 auto;font-size:17px;line-height:1.9;color:var(--c-text-2);}
.article-content p{margin:0 0 1.2em;}
.article-content h2{
  position:relative;font-size:24px;font-weight:600;color:var(--c-text);
  margin:1.6em 0 1em;padding-left:14px;line-height:1.45;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:2px;background:var(--c-primary);
}
.article-content h3{font-size:19px;font-weight:600;color:var(--c-text);margin:1.6em 0 1em;line-height:1.5;}
.article-content ul,.article-content ol{margin:0 0 1.2em;padding-left:1.35em;}
.article-content ul li{list-style:disc;margin:.4em 0;}
.article-content ol li{list-style:decimal;margin:.4em 0;}
.article-content img{border-radius:var(--radius-m);margin:1.4em 0;width:100%;height:auto;}
.article-content blockquote{
  margin:1.4em 0;padding:16px 22px;background:var(--c-bg);
  border-left:3px solid var(--c-primary);border-radius:0 var(--radius-m) var(--radius-m) 0;
  color:var(--c-text-2);font-size:16px;
}
.article-content a{color:var(--c-primary);border-bottom:1px solid rgba(75,46,131,.28);}
.article-content a:hover{color:var(--c-primary-deep);border-bottom-color:var(--c-primary-deep);}
.article-content strong{color:var(--c-text);font-weight:600;}
.article-content table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;border:1px solid var(--c-border);border-radius:var(--radius-m);overflow:hidden;}
.article-content th,.article-content td{border-bottom:1px solid var(--c-border);padding:12px 14px;text-align:left;}
.article-content th{background:var(--c-bg);color:var(--c-text);font-weight:600;}
.article-content tr:last-child td{border-bottom:none;}
.article-content hr{border:none;border-top:1px solid var(--c-border);margin:2em 0;}
.article-empty{
  max-width:760px;margin:0 auto;text-align:center;padding:56px 16px;
}
.article-empty p{font-size:18px;font-weight:600;color:var(--c-text);margin-bottom:20px;}
.article-foot{
  max-width:760px;margin:40px auto 0;padding-top:24px;border-top:1px solid var(--c-border);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.tag-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--c-text-3);}
.back-link{font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}
.back-link:hover{color:var(--c-primary-deep);text-decoration:underline;}

/* ============ 板块与卡片 ============ */
.section{padding:88px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;}
.section-title{position:relative;font-size:26px;font-weight:600;padding-left:16px;}
.section-title::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:5px;border-radius:3px;background:var(--c-primary);}
.section-sub{margin-top:10px;font-size:15px;color:var(--c-text-2);padding-left:16px;}
.text-link{font-size:14px;font-weight:600;color:var(--c-primary);white-space:nowrap;}
.text-link:hover{color:var(--c-primary-deep);text-decoration:underline;}
.card-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--radius-l);box-shadow:var(--shadow-1);overflow:hidden;position:relative;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--c-accent);
  transform:scaleX(0);transform-origin:left;transition:transform var(--dur) var(--ease);z-index:2;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#DCD5CB;color:var(--c-text);}
.card:hover::before{transform:scaleX(1);}
.card-media{position:relative;aspect-ratio:16/9;background:#EFEAE2;overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.card:hover .card-media img{transform:scale(1.04);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{font-size:19px;font-weight:600;line-height:1.5;color:var(--c-text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card:hover .card-title{color:var(--c-primary);}
.card-desc{font-size:14px;line-height:1.75;color:var(--c-text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12px;color:var(--c-text-3);}

/* ============ CTA ============ */
.cta-band{margin-top:88px;background:var(--c-dark);color:#EDE9F2;padding:56px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;}
.cta-text h2{font-size:26px;color:#fff;margin-bottom:10px;}
.cta-text p{font-size:15px;color:#A9A2B6;max-width:520px;}
.cta-form{display:flex;gap:12px;flex-wrap:wrap;}
.cta-form input{
  min-width:290px;padding:13px 16px;border-radius:var(--radius-s);
  border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06);color:#fff;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease);
}
.cta-form input::placeholder{color:#8F889D;}
.cta-form input:focus{outline:none;border-color:var(--c-accent);background:rgba(255,255,255,.1);box-shadow:0 0 0 3px rgba(255,138,61,.22);}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-dark);color:#B4AEC1;padding:56px 0 24px;font-size:14px;line-height:1.8;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;}
.footer-col{padding-right:24px;border-right:1px solid rgba(255,255,255,.1);}
.footer-col:last-child{border-right:none;padding-right:0;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:14px;}
.footer-brand .logo-mark{width:32px;height:32px;flex:0 0 32px;}
.footer-h4{font-size:15px;color:#fff;margin-bottom:14px;font-weight:600;}
.footer-text{color:#9A93A9;font-size:13.5px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:#B4AEC1;font-size:14px;}
.footer-links a:hover{color:var(--c-accent);}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#8A8399;
}

/* ============ 响应式 ============ */
@media (max-width:1080px){
  .main-nav{display:none;}
  .nav-toggle{display:flex;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-col{border-right:none;padding-right:0;}
}
@media (max-width:900px){
  .container{padding:0 20px;}
  .article-title{font-size:28px;}
  .article-hero{padding:32px 0 92px;}
  .article-body{padding:30px 22px 26px;}
  .article-shell{margin-top:-60px;}
  .section{padding-top:56px;}
  .card-grid-3{grid-template-columns:1fr;}
  .cta-band{margin-top:56px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-form{width:100%;}
  .cta-form input{flex:1;min-width:0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:640px){
  body{font-size:16px;}
  .article-title{font-size:26px;}
  .article-content{font-size:16px;}
  .article-content h2{font-size:21px;}
  .article-content h3{font-size:18px;}
  .section-title{font-size:22px;}
  .card-body{padding:16px;}
  .card-title{font-size:18px;}
  .btn{width:100%;padding:13px 18px;}
  .nav-actions .btn{width:auto;}
  .cta-form{flex-direction:column;}
  .cta-form input{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .article-foot{flex-direction:column;align-items:flex-start;gap:14px;}
}
@media (max-width:420px){
  .topbar-right{display:none;}
  .topbar-tip{max-width:52vw;}
  .brand-text{font-size:16px;}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --c-primary:#4B2E83;
  --c-primary-deep:#2E1B52;
  --c-accent:#FF8A3D;
  --c-accent-soft:#FFE4D1;
  --c-mint:#17BFA8;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-dark:#17121F;
  --c-border:#E7E2DA;
  --c-text:#1C1720;
  --c-text-2:#4A4552;
  --c-text-3:#8A8494;
  --danger:#D9534F;
  --radius-s:8px;
  --radius-m:12px;
  --radius-l:16px;
  --radius-pill:999px;
  --shadow-1:0 2px 10px rgba(23,18,31,.06);
  --shadow-2:0 12px 28px rgba(46,27,82,.14);
  --dur:.22s;
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  color:var(--c-text);
  background:var(--c-bg);
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--dur) var(--ease);}
a:hover{color:var(--c-accent);}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
/* ============ 顶部信息条 ============ */
.topbar{
  background:var(--c-dark);
  color:#C9C3D4;
  height:36px;
  font-size:13px;
  display:flex;
  align-items:center;
}
.topbar .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  height:36px;
}
.topbar-left{display:flex;align-items:center;gap:14px;min-width:0;}
.topbar-domain{
  color:#fff;
  font-weight:600;
  letter-spacing:.04em;
  white-space:nowrap;
}
.topbar-tip{
  color:#A79FB4;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.topbar-tip::before{
  content:"";
  display:inline-block;
  width:1px;height:12px;
  background:rgba(255,255,255,.18);
  margin-right:12px;
  vertical-align:-1px;
}
.topbar-right{display:flex;align-items:center;gap:12px;white-space:nowrap;}
.topbar-right a{color:#C9C3D4;font-size:13px;}
.topbar-right a:hover{color:#fff;}
.topbar-sep{color:rgba(255,255,255,.2);}
/* ============ 主导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow var(--dur) var(--ease);
}
.site-header.is-stuck{box-shadow:var(--shadow-1);}
.header-inner{
  height:68px;
  display:flex;
  align-items:center;
  gap:24px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--c-text);
  font-weight:700;
  font-size:18px;
  letter-spacing:.02em;
}
.brand:hover{color:var(--c-primary);}
.logo-mark{
  width:34px;height:34px;
  border-radius:10px;
  background:linear-gradient(135deg,#5A3999,var(--c-primary-deep));
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex:0 0 auto;
}
.logo-mark svg{width:19px;height:19px;}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:68px;
  padding:0 14px;
  font-size:15px;
  color:var(--c-text-2);
  font-weight:500;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:0;
  height:2px;
  background:var(--c-primary);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:center;
  transition:transform var(--dur) var(--ease);
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-cta{
  margin-left:14px;
  flex:0 0 auto;
}
/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border-radius:10px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#5B399B,var(--c-primary));
  color:#fff;
  box-shadow:var(--shadow-1);
}
.btn-primary:hover{background:linear-gradient(135deg,var(--c-primary),var(--c-primary-deep));color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  border:1px solid var(--c-primary);
  color:var(--c-primary);
  background:transparent;
}
.btn-ghost:hover{background:rgba(75,46,131,.08);color:var(--c-primary);}
.btn-accent{
  background:linear-gradient(135deg,#FFA05C,var(--c-accent));
  color:#331A05;
  box-shadow:var(--shadow-2);
}
.btn-accent:hover{background:linear-gradient(135deg,var(--c-accent),#F0741F);color:#331A05;transform:translateY(-1px);}
.btn[disabled],.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-sm{padding:9px 18px;font-size:14px;}
/* ============ 汉堡与抽屉 ============ */
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:10px;
  border:1px solid var(--c-border);
  align-items:center;
  justify-content:center;
  margin-left:auto;
  background:var(--c-surface);
}
.nav-toggle span{
  display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;position:relative;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-text);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(23,18,31,.48);
  opacity:0;visibility:hidden;transition:opacity var(--dur) var(--ease);z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;
  width:302px;max-width:86vw;
  background:var(--c-surface);
  z-index:80;
  transform:translateX(100%);
  transition:transform var(--dur) var(--ease);
  padding:22px 20px 30px;
  overflow-y:auto;
  display:flex;
  flex-direction:column;
  gap:6px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding-bottom:16px;margin-bottom:10px;border-bottom:1px solid var(--c-border);
}
.drawer-title{font-size:15px;font-weight:600;color:var(--c-text-2);}
.drawer-close{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--c-border);
  display:inline-flex;align-items:center;justify-content:center;font-size:20px;color:var(--c-text-2);
}
.drawer-close:hover{border-color:var(--c-primary);color:var(--c-primary);}
.drawer a.drawer-link{
  display:flex;align-items:center;min-height:48px;
  padding:0 12px;border-radius:10px;
  color:var(--c-text-2);font-size:16px;font-weight:500;
}
.drawer a.drawer-link:hover{background:var(--c-bg);color:var(--c-primary);}
.drawer a.drawer-link.is-active{color:var(--c-primary);background:rgba(75,46,131,.07);font-weight:600;}
.drawer .btn{width:100%;margin-top:14px;}
/* ============ 页面头（分类页 Hero） ============ */
.page-head{
  background:var(--c-surface);
  border-bottom:1px solid var(--c-border);
  padding:40px 0 0;
}
.crumb{
  font-size:13px;
  color:var(--c-text-3);
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  margin-bottom:22px;
}
.crumb a{color:var(--c-text-3);}
.crumb a:hover{color:var(--c-primary);}
.crumb .crumb-now{color:var(--c-text-2);}
.page-head-grid{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  gap:48px;
  align-items:center;
  padding-bottom:48px;
}
.page-head h1{
  font-size:36px;
  line-height:1.35;
  font-weight:700;
  letter-spacing:.01em;
  margin-bottom:16px;
}
.page-head .lead{
  font-size:17px;
  color:var(--c-text-2);
  max-width:34em;
}
.head-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-pill);
  background:var(--c-accent-soft);color:var(--c-primary);
  font-size:13px;font-weight:600;
}
.tag-mint{background:rgba(23,191,168,.12);color:#0E8C7C;}
.tag-line{background:transparent;border:1px solid var(--c-border);color:var(--c-text-2);font-weight:500;}
.page-head-media{
  position:relative;
  border-radius:var(--radius-l);
  overflow:hidden;
  aspect-ratio:16/10;
  background:#EDE9E2;
  box-shadow:var(--shadow-2);
}
.page-head-media img{width:100%;height:100%;object-fit:cover;}
.page-head-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(46,27,82,.44),rgba(23,18,31,.12));
}
.media-badge{
  position:absolute;left:18px;bottom:18px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.94);
  border-radius:var(--radius-pill);
  padding:7px 14px;
  font-size:13px;font-weight:600;color:var(--c-text-2);
}
.dot{
  width:8px;height:8px;border-radius:50%;background:var(--c-mint);
  box-shadow:0 0 0 3px rgba(23,191,168,.2);
  flex:0 0 auto;
}
/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-bg{background:var(--c-surface);}
.section-title{
  font-size:26px;
  font-weight:600;
  line-height:1.5;
  padding-left:14px;
  position:relative;
  margin-bottom:14px;
}
.section-title::before{
  content:"";
  position:absolute;left:0;top:.28em;bottom:.28em;
  width:4px;border-radius:2px;background:var(--c-primary);
}
.section-sub{
  color:var(--c-text-2);
  max-width:46em;
  margin-bottom:40px;
}
/* ============ 图文交替 ============ */
.feature-row{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;
  align-items:center;
  padding:44px 0;
  border-top:1px solid var(--c-border);
}
.feature-row:first-of-type{border-top:0;padding-top:8px;}
.feature-row.is-reverse .feature-media{order:2;}
.feature-row.is-reverse .feature-body{order:1;}
.feature-media{
  position:relative;
  border-radius:var(--radius-l);
  overflow:hidden;
  aspect-ratio:4/3;
  background:#EDE9E2;
  box-shadow:var(--shadow-1);
}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.feature-row:hover .feature-media img{transform:scale(1.03);}
.feature-index{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--c-accent);
  margin-bottom:10px;
}
.feature-index i{
  display:inline-block;width:22px;height:2px;background:var(--c-accent);border-radius:2px;
}
.feature-body h2{
  font-size:26px;
  font-weight:600;
  line-height:1.5;
  margin-bottom:14px;
}
.feature-body p{color:var(--c-text-2);margin-bottom:14px;}
.feature-body p:last-child{margin-bottom:0;}
.check-list{margin-top:18px;display:grid;gap:10px;}
.check-list li{
  position:relative;
  padding-left:26px;
  color:var(--c-text-2);
  font-size:16px;
}
.check-list li::before{
  content:"";
  position:absolute;left:0;top:.62em;
  width:12px;height:12px;border-radius:50%;
  background:rgba(75,46,131,.12);
  border:2px solid var(--c-primary);
}
.note-line{
  margin-top:20px;
  padding:14px 16px;
  background:var(--c-bg);
  border-left:3px solid var(--c-primary);
  border-radius:0 var(--radius-s) var(--radius-s) 0;
  font-size:15px;
  color:var(--c-text-2);
}
/* ============ 相关链接卡 ============ */
.link-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
  margin-top:8px;
}
.link-card{
  display:flex;
  flex-direction:column;
  gap:12px;
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--radius-l);
  padding:24px;
  box-shadow:var(--shadow-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
  position:relative;
  overflow:hidden;
}
.link-card::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--c-accent);
  transform:scaleX(0);transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.link-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D9D2C7;color:inherit;}
.link-card:hover::before{transform:scaleX(1);}
.link-card h3{font-size:19px;font-weight:600;line-height:1.5;}
.link-card p{font-size:15px;color:var(--c-text-2);margin:0;}
.link-card .link-more{
  margin-top:auto;
  font-size:14px;font-weight:600;color:var(--c-primary);
  display:inline-flex;align-items:center;gap:6px;
}
.link-card:hover .link-more{color:var(--c-accent);}
/* ============ FAQ ============ */
.faq-wrap{max-width:880px;}
.faq-item{border-bottom:1px solid var(--c-border);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 0;
  font-size:17px;font-weight:600;
  color:var(--c-text);
  transition:color var(--dur) var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--c-primary);}
.faq-icon{
  flex:0 0 auto;
  width:26px;height:26px;border-radius:50%;
  border:1px solid var(--c-border);
  position:relative;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-text-2);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:11px;height:1.6px;}
.faq-icon::after{width:1.6px;height:11px;}
.faq-item[open] .faq-icon{transform:rotate(45deg);border-color:var(--c-primary);background:rgba(75,46,131,.06);}
.faq-item[open] .faq-icon::before,.faq-item[open] .faq-icon::after{background:var(--c-primary);}
.faq-body{
  padding:0 0 18px;
  font-size:15px;
  line-height:1.85;
  color:var(--c-text-2);
  max-width:44em;
}
/* ============ CTA 带 ============ */
.cta-band{
  background:var(--c-dark);
  color:#fff;
  padding:72px 0;
}
.cta-box{
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);
  gap:40px;
  align-items:center;
}
.cta-band h2{
  font-size:26px;
  font-weight:600;
  line-height:1.5;
  margin-bottom:12px;
}
.cta-band p{color:#BDB6C9;max-width:34em;}
.cta-form{
  display:flex;
  gap:12px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-l);
  padding:14px;
}
.cta-form input{
  flex:1 1 auto;
  min-width:0;
  padding:14px 16px;
  border-radius:var(--radius-s);
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.94);
  color:var(--c-text);
  font-size:15px;
}
.cta-form input::placeholder{color:#8A8494;}
.cta-form input:focus{outline:none;border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(255,138,61,.35);}
.cta-hint{font-size:12px;color:#8F87A0;margin-top:12px;}
/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-dark);
  color:#BDB6C9;
  padding:56px 0 26px;
  font-size:15px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:32px;
  padding-bottom:34px;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-col{min-width:0;}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-weight:700;font-size:17px;margin-bottom:14px;
}
.footer-brand .logo-mark{width:30px;height:30px;border-radius:9px;}
.footer-text{color:#938CA3;font-size:14px;line-height:1.8;}
.footer-h4{
  font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;
}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:#BDB6C9;font-size:14px;}
.footer-links a:hover{color:#fff;}
.footer-links span{font-size:14px;color:#938CA3;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding-top:22px;
  font-size:13px;color:#8A8494;
  flex-wrap:wrap;
}
.footer-col + .footer-col{border-left:1px solid rgba(255,255,255,.1);padding-left:32px;}
/* ============ 响应式 ============ */
@media (max-width:1280px){
  .container{padding:0 20px;}
}
@media (max-width:1080px){
  .main-nav,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .feature-row{gap:40px;}
  .link-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px 32px;}
  .footer-col + .footer-col{border-left:0;padding-left:0;}
}
@media (max-width:900px){
  .section{padding:56px 0;}
  .page-head{padding-top:26px;}
  .page-head-grid{grid-template-columns:1fr;gap:26px;padding-bottom:34px;}
  .page-head h1{font-size:30px;}
  .page-head-media{aspect-ratio:16/9;order:2;}
  .feature-row{grid-template-columns:1fr;gap:24px;padding:34px 0;}
  .feature-row.is-reverse .feature-media{order:0;}
  .feature-row.is-reverse .feature-body{order:1;}
  .cta-box{grid-template-columns:1fr;gap:26px;}
  .cta-band{padding:56px 0;}
  .section-sub{margin-bottom:30px;}
}
@media (max-width:640px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .page-head h1{font-size:26px;}
  .section-title{font-size:22px;}
  .feature-body h2{font-size:22px;}
  .cta-band h2{font-size:22px;}
  .link-grid{grid-template-columns:1fr;}
  .link-card{padding:18px;}
  .cta-form{flex-direction:column;padding:12px;}
  .cta-form .btn{width:100%;}
  .btn{width:100%;}
  .brand{font-size:16px;}
  .topbar-right{display:none;}
  .faq-item summary{font-size:16px;padding:18px 0;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:420px){
  .topbar-tip{display:none;}
  .feature-media{aspect-ratio:16/10;}
}

/* roulang page: category2 */
:root{
  --c-primary:#4B2E83;
  --c-primary-deep:#2E1B52;
  --c-accent:#FF8A3D;
  --c-accent-soft:#FFE4D1;
  --c-mint:#17BFA8;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-dark:#17121F;
  --c-border:#E7E2DA;
  --c-text:#1C1720;
  --c-text-2:#4A4552;
  --c-text-3:#8A8494;
  --radius-s:8px;
  --radius-m:12px;
  --radius-l:16px;
  --radius-pill:999px;
  --shadow-1:0 2px 10px rgba(23,18,31,.06);
  --shadow-2:0 12px 28px rgba(46,27,82,.14);
  --dur:.22s;
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  color:var(--c-text);
  background:var(--c-bg);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
::selection{background:var(--c-accent-soft);color:var(--c-primary-deep)}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:900px){
  .container{padding:0 24px}
}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--c-dark);
  color:#EDE9F2;
  font-size:13px;
  height:36px;
  line-height:1;
  display:flex;
  align-items:center;
}
.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.topbar-left{display:flex;align-items:center;gap:14px;min-width:0}
.topbar-domain{
  font-weight:600;
  letter-spacing:.04em;
  color:#fff;
  white-space:nowrap;
}
.topbar-hint{
  color:#9C95AB;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.topbar-right{display:flex;align-items:center;gap:12px;white-space:nowrap}
.topbar-right a{color:#CFC8DC;transition:color var(--dur) var(--ease)}
.topbar-right a:hover{color:#fff}
.topbar-sep{width:1px;height:12px;background:rgba(255,255,255,.18)}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow var(--dur) var(--ease);
}
.site-header.is-stuck{box-shadow:var(--shadow-1)}
.header-inner{
  height:68px;
  display:flex;
  align-items:center;
  gap:24px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  font-size:18px;
  font-weight:700;
  color:var(--c-primary-deep);
  letter-spacing:.01em;
}
.logo-mark{
  width:34px;height:34px;
  border-radius:10px;
  background:linear-gradient(135deg,var(--c-primary) 0%,var(--c-primary-deep) 100%);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex:0 0 auto;
}
.logo-mark svg{width:19px;height:19px}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:8px;
  flex:1 1 auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:68px;
  padding:0 12px;
  font-size:15px;
  color:var(--c-text-2);
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
  border-radius:var(--radius-s);
}
.nav-link:hover{color:var(--c-primary)}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:-1px;
  height:2px;
  border-radius:2px;
  background:var(--c-primary);
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.hamburger{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--c-border);
  border-radius:var(--radius-m);
  background:var(--c-surface);
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.hamburger:hover{background:var(--c-bg);border-color:#D8D2C8}
.hamburger span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;position:relative}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-text);border-radius:2px;
}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(23,18,31,.48);
  opacity:0;visibility:hidden;
  transition:opacity var(--dur) var(--ease),visibility var(--dur) 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:var(--c-surface);
  z-index:90;
  padding:22px 20px 32px;
  overflow-y:auto;
  transform:translateX(102%);
  transition:transform .28s var(--ease);
  box-shadow:-8px 0 30px rgba(23,18,31,.18);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding-bottom:16px;margin-bottom:12px;
  border-bottom:1px solid var(--c-border);
}
.drawer-title{font-size:16px;font-weight:700;color:var(--c-primary-deep)}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--c-border);border-radius:var(--radius-m);
  background:transparent;font-size:19px;line-height:1;color:var(--c-text-2);
}
.drawer-close:hover{background:var(--c-bg)}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:20px}
.drawer-nav a{
  display:flex;align-items:center;
  min-height:48px;
  padding:0 12px;
  border-radius:var(--radius-m);
  font-size:16px;
  color:var(--c-text-2);
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.drawer-nav a:hover{background:rgba(75,46,131,.06);color:var(--c-primary)}
.drawer-nav a.is-active{background:rgba(75,46,131,.08);color:var(--c-primary);font-weight:600}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:12px 22px;
  border-radius:10px;
  font-size:16px;
  font-weight:600;
  border:1px solid transparent;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--c-primary) 0%,var(--c-primary-deep) 100%);
  color:#fff;
}
.btn-primary:hover{background:var(--c-primary-deep);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{
  background:transparent;
  border-color:var(--c-primary);
  color:var(--c-primary);
}
.btn-ghost:hover{background:rgba(75,46,131,.08);transform:translateY(-1px)}
.btn-accent{background:var(--c-accent);color:#2B1405}
.btn-accent:hover{background:#F5792A;transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,138,61,.32)}
.btn-sm{min-height:40px;padding:9px 16px;font-size:15px}
.btn-block{width:100%}
.btn[disabled],.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;
  padding:56px 0 64px;
  background:
    linear-gradient(180deg,rgba(247,245,241,.94) 0%,rgba(247,245,241,.88) 100%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  border-bottom:1px solid var(--c-border);
  overflow:hidden;
}
.page-hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:48px;
  align-items:center;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--c-text-3);
  margin-bottom:16px;
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--c-text-3);transition:color var(--dur) var(--ease)}
.breadcrumb a:hover{color:var(--c-primary);text-decoration:underline}
.breadcrumb .sep{color:#C6BFB4}
.breadcrumb .current{color:var(--c-text-2)}
.page-hero h1{
  font-size:36px;
  line-height:1.35;
  font-weight:700;
  color:var(--c-primary-deep);
  letter-spacing:.005em;
}
.page-hero-lead{
  margin-top:16px;
  font-size:17px;
  color:var(--c-text-2);
  max-width:34em;
}
.hero-actions{margin-top:28px;display:flex;gap:14px;flex-wrap:wrap}
.trust-line{
  margin-top:18px;
  font-size:13px;
  color:var(--c-text-3);
}
.page-hero-media{
  position:relative;
  border-radius:var(--radius-l);
  overflow:hidden;
  aspect-ratio:4/3;
  background:#E9E4DC;
  box-shadow:var(--shadow-2);
}
.page-hero-media img{width:100%;height:100%;object-fit:cover}
.page-hero-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(75,46,131,.42) 0%,rgba(46,27,82,.52) 100%);
}
.media-badge{
  position:absolute;
  left:18px;bottom:18px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.94);
  color:var(--c-primary-deep);
  font-size:13px;
  font-weight:600;
  box-shadow:var(--shadow-1);
}
.dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--c-mint);
  box-shadow:0 0 0 3px rgba(23,191,168,.22);
  display:inline-block;
}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border)}
.section-head{margin-bottom:40px;max-width:760px}
.h2-line{
  position:relative;
  padding-left:16px;
  font-size:26px;
  font-weight:600;
  line-height:1.45;
  color:var(--c-primary-deep);
}
.h2-line::before{
  content:"";
  position:absolute;
  left:0;top:.3em;bottom:.3em;
  width:4px;border-radius:2px;
  background:var(--c-primary);
}
.section-sub{
  margin-top:14px;
  font-size:16px;
  color:var(--c-text-2);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--c-accent);
  margin-bottom:12px;
}

/* ---------- 数据位 ---------- */
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.stat{
  padding:30px 26px;
  border-left:1px solid var(--c-border);
}
.stat:first-child{border-left:none}
.stat-num{
  display:block;
  font-size:44px;
  line-height:1.1;
  font-weight:700;
  color:var(--c-primary);
  letter-spacing:-.01em;
}
.stat:nth-child(2) .stat-num{color:var(--c-accent)}
.stat-cap{
  display:block;
  margin-top:10px;
  font-size:13px;
  color:var(--c-text-3);
  line-height:1.7;
}

/* ---------- 编号清单流 ---------- */
.steps-layout{
  display:grid;
  grid-template-columns:250px minmax(0,1fr);
  gap:48px;
  align-items:start;
}
.anchor-col{
  position:sticky;
  top:96px;
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--radius-l);
  padding:22px 20px;
  box-shadow:var(--shadow-1);
}
.anchor-title{
  font-size:15px;
  font-weight:600;
  color:var(--c-primary-deep);
  padding-bottom:12px;
  margin-bottom:12px;
  border-bottom:1px solid var(--c-border);
}
.anchor-list{display:flex;flex-direction:column;gap:2px}
.anchor-list a{
  display:flex;
  align-items:center;
  gap:10px;
  min-height:44px;
  padding:8px 10px;
  border-radius:var(--radius-s);
  font-size:14px;
  color:var(--c-text-2);
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.anchor-list a:hover{background:rgba(75,46,131,.06);color:var(--c-primary)}
.anchor-list .idx{
  font-size:12px;
  font-weight:700;
  color:var(--c-accent);
  letter-spacing:.04em;
  flex:0 0 auto;
}
.anchor-note{
  margin-top:16px;
  padding-top:16px;
  border-top:1px solid var(--c-border);
  font-size:12px;
  line-height:1.8;
  color:var(--c-text-3);
}
.step-col{display:flex;flex-direction:column;gap:20px}
.step-card{
  position:relative;
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  padding:26px 26px 24px;
  display:grid;
  grid-template-columns:64px minmax(0,1fr);
  gap:22px;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
  overflow:hidden;
}
.step-card::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:3px;
  background:var(--c-accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.step-card:hover::before{transform:scaleX(1)}
.step-index{
  font-size:34px;
  font-weight:700;
  line-height:1;
  color:var(--c-primary);
  opacity:.9;
  padding-top:2px;
}
.step-body h3{
  font-size:19px;
  font-weight:600;
  color:var(--c-primary-deep);
  line-height:1.55;
  margin-bottom:10px;
}
.step-body p{
  font-size:16px;
  line-height:1.9;
  color:var(--c-text-2);
}
.step-body p + p{margin-top:.9em}
.step-points{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.step-points li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  color:var(--c-text-2);
}
.step-points li::before{
  content:"";
  position:absolute;
  left:2px;top:.78em;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--c-mint);
}
.step-hint{
  margin-top:16px;
  padding:12px 16px;
  border-radius:var(--radius-m);
  background:var(--c-accent-soft);
  color:#5A2A0C;
  font-size:14px;
  line-height:1.8;
}
.step-media{
  margin-top:16px;
  border-radius:var(--radius-m);
  overflow:hidden;
  aspect-ratio:16/9;
  background:#E9E4DC;
}
.step-media img{width:100%;height:100%;object-fit:cover}

/* ---------- 场景卡 ---------- */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.scene-card{
  position:relative;
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  padding:26px 24px;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.scene-card::before{
  content:"";
  position:absolute;left:0;right:0;top:0;height:3px;
  background:var(--c-accent);
  border-radius:var(--radius-l) var(--radius-l) 0 0;
  transform:scaleX(0);transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.scene-card:hover::before{transform:scaleX(1)}
.scene-icon{
  width:44px;height:44px;
  border-radius:var(--radius-m);
  background:rgba(75,46,131,.08);
  color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;
  margin-bottom:16px;
}
.scene-icon svg{width:22px;height:22px}
.scene-card h3{
  font-size:19px;font-weight:600;color:var(--c-primary-deep);line-height:1.55;margin-bottom:10px;
}
.scene-card p{font-size:15px;color:var(--c-text-2);line-height:1.85}
.tag-row{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 10px;
  border-radius:var(--radius-pill);
  background:var(--c-accent-soft);
  color:var(--c-primary-deep);
  font-size:12px;
  font-weight:600;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px}
.faq-item{border-bottom:1px solid var(--c-border)}
.faq-item:first-child{border-top:1px solid var(--c-border)}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:64px;
  padding:18px 0;
  font-size:17px;
  font-weight:600;
  color:var(--c-text);
  cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  font-size:22px;
  font-weight:400;
  line-height:1;
  color:var(--c-primary);
  transition:transform var(--dur) var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item summary:hover{color:var(--c-primary)}
.faq-item p{
  padding:0 0 18px;
  font-size:15px;
  line-height:1.85;
  color:var(--c-text-2);
  max-width:64em;
}

/* ---------- 相关链接 ---------- */
.link-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.link-card{
  display:block;
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  padding:22px 22px 20px;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.link-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D6CFE6}
.link-card .tag{margin-bottom:12px}
.link-card h3{
  font-size:19px;font-weight:600;color:var(--c-primary-deep);line-height:1.5;margin-bottom:8px;
  transition:color var(--dur) var(--ease);
}
.link-card:hover h3{color:var(--c-primary)}
.link-card p{font-size:14px;color:var(--c-text-2);line-height:1.8}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:14px;font-size:14px;font-weight:600;color:var(--c-accent);
}
.link-more span{transition:transform var(--dur) var(--ease)}
.link-card:hover .link-more span{transform:translateX(4px)}

/* ---------- CTA 带 + 表单 ---------- */
.cta-band{
  background:
    radial-gradient(760px 320px at 12% 0%,rgba(75,46,131,.42) 0%,rgba(75,46,131,0) 62%),
    var(--c-dark);
  color:#F3F0F7;
  padding:76px 0;
}
.cta-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,520px);
  gap:48px;
  align-items:start;
}
.cta-band h2{
  font-size:26px;
  font-weight:600;
  line-height:1.45;
  color:#fff;
}
.cta-band .cta-desc{
  margin-top:14px;
  font-size:16px;
  line-height:1.9;
  color:#BDB6CB;
  max-width:34em;
}
.cta-list{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.cta-list li{
  display:flex;align-items:center;gap:10px;
  font-size:15px;color:#D7D1E2;
}
.cta-list .dot{flex:0 0 auto}
.form-card{
  background:var(--c-surface);
  border-radius:var(--radius-l);
  padding:26px 24px;
  box-shadow:0 16px 40px rgba(0,0,0,.28);
}
.form-title{
  font-size:18px;font-weight:600;color:var(--c-primary-deep);margin-bottom:6px;
}
.form-note{font-size:13px;color:var(--c-text-3);margin-bottom:18px}
.form-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}
.field{display:flex;flex-direction:column;gap:8px}
.field-full{grid-column:1 / -1}
.field label{font-size:13px;font-weight:600;color:var(--c-text-2)}
.field input,.field textarea{
  width:100%;
  padding:14px;
  font-size:15px;
  border:1px solid var(--c-border);
  border-radius:var(--radius-s);
  background:#FDFCFA;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease);
}
.field textarea{min-height:96px;resize:vertical;line-height:1.8}
.field input:focus,.field textarea:focus{
  outline:none;
  border-color:var(--c-accent);
  background:#fff;
  box-shadow:0 0 0 3px rgba(255,138,61,.18);
}
.field input:disabled,.field textarea:disabled{background:#F1EEE9;color:var(--c-text-3);cursor:not-allowed}
.field-hint{font-size:12px;color:var(--c-text-3)}
.field-error{font-size:12px;color:#D9534F;display:none}
.field.has-error input,.field.has-error textarea{border-color:#D9534F}
.field.has-error .field-error{display:block}
.form-actions{grid-column:1 / -1;display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:4px}
.form-actions .btn{min-width:150px}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-dark);
  color:#B9B3C6;
  font-size:14px;
  padding-top:8px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:0;
  padding:56px 0 34px;
}
.footer-col{padding:0 26px}
.footer-col:first-child{padding-left:0}
.footer-col:last-child{padding-right:0}
.footer-col + .footer-col{border-left:1px solid rgba(255,255,255,.1)}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  font-size:17px;font-weight:700;color:#fff;margin-bottom:14px;
}
.footer-brand .logo-mark{background:linear-gradient(135deg,#5C3A9C 0%,#33205C 100%)}
.footer-text{font-size:13px;line-height:1.9;color:#928CA1}
.footer-h4{
  font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;letter-spacing:.02em;
}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{
  font-size:13px;color:#B9B3C6;
  transition:color var(--dur) var(--ease);
}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0 26px;
  border-top:1px solid rgba(255,255,255,.1);
  font-size:12px;
  color:#8A8494;
  flex-wrap:wrap;
}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .main-nav{display:none}
  .hamburger{display:inline-flex}
  .header-inner{gap:16px}
  .brand{font-size:17px}
  .steps-layout{grid-template-columns:1fr;gap:28px}
  .anchor-col{position:static}
  .anchor-list{
    flex-direction:row;
    flex-wrap:wrap;
    gap:8px;
  }
  .anchor-list li{flex:1 1 160px}
  .anchor-note{display:none}
  .cta-grid{grid-template-columns:1fr;gap:34px}
}
@media (max-width:900px){
  .section{padding:56px 0}
  .page-hero{padding:36px 0 48px}
  .page-hero-grid{grid-template-columns:1fr;gap:30px}
  .page-hero-media{order:-1;aspect-ratio:16/9}
  .page-hero h1{font-size:28px}
  .h2-line{font-size:23px}
  .stats-grid{grid-template-columns:1fr 1fr}
  .stat{border-left:1px solid var(--c-border)}
  .stat:nth-child(odd){border-left:none}
  .stat:nth-child(n+3){border-top:1px solid var(--c-border)}
  .scene-grid{grid-template-columns:1fr}
  .link-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px 0;padding:44px 0 28px}
  .footer-col{padding:0 20px}
  .footer-col:nth-child(odd){padding-left:0;border-left:none}
  .footer-col:nth-child(-n+2){padding-bottom:6px}
}
@media (max-width:640px){
  body{font-size:16px}
  .btn{width:100%}
  .header-actions .btn{width:auto}
  .hero-actions{flex-direction:column}
  .page-hero h1{font-size:26px}
  .h2-line{font-size:22px}
  .section-head{margin-bottom:28px}
  .step-card{padding:20px 16px;grid-template-columns:1fr;gap:12px}
  .step-index{font-size:26px}
  .stat{padding:22px 18px}
  .stat-num{font-size:36px}
  .form-grid{grid-template-columns:1fr}
  .form-actions{flex-direction:column;align-items:stretch}
  .form-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-col{padding:0;border-left:none}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:420px){
  .topbar-hint,.topbar-right{display:none}
  .topbar-inner{justify-content:flex-start}
  .brand-text{font-size:16px}
}

/* roulang page: category3 */
:root{
  --c-primary:#4B2E83;
  --c-primary-deep:#2E1B52;
  --c-accent:#FF8A3D;
  --c-accent-soft:#FFE4D1;
  --c-mint:#17BFA8;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-dark:#17121F;
  --c-border:#E7E2DA;
  --c-text:#1C1720;
  --c-text-2:#4A4552;
  --c-text-3:#8A8494;
  --radius-s:8px;
  --radius-m:12px;
  --radius-l:16px;
  --radius-pill:999px;
  --shadow-1:0 2px 10px rgba(23,18,31,.06);
  --shadow-2:0 12px 28px rgba(46,27,82,.14);
  --dur:.22s;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  color:var(--c-text);
  background:var(--c-bg);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
@media (min-width:900px){.container{padding:0 20px}}

/* 顶部信息条 */
.topbar{background:var(--c-dark);color:rgba(255,255,255,.7);font-size:13px;height:36px;display:flex;align-items:center}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;height:36px}
.topbar-left{display:flex;align-items:center;gap:12px;min-width:0}
.topbar-domain{color:#fff;font-weight:600;letter-spacing:.02em;white-space:nowrap}
.topbar-sep{width:1px;height:14px;background:rgba(255,255,255,.18);flex:0 0 auto}
.topbar-tip{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:320px}
.topbar-right{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.topbar-right a{color:rgba(255,255,255,.82);transition:color var(--dur) var(--ease)}
.topbar-right a:hover{color:var(--c-accent)}
.topbar-div{width:1px;height:12px;background:rgba(255,255,255,.18)}

/* 主导航 */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--c-surface);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow var(--dur) var(--ease);
}
.site-header.is-stuck{box-shadow:var(--shadow-1)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--c-text);flex:0 0 auto}
.logo-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-deep));
  display:flex;align-items:center;justify-content:center;
}
.logo-mark svg{width:20px;height:20px}
.main-nav{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:38px;padding:0 12px;
  font-size:15px;color:var(--c-text-2);border-radius:var(--radius-s);
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav-link:hover{color:var(--c-primary);background:rgba(75,46,131,.07)}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-14px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.hamburger{
  display:none;width:44px;height:44px;border-radius:var(--radius-s);
  align-items:center;justify-content:center;border:1px solid var(--c-border);
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.hamburger:hover{background:var(--c-bg);border-color:#d9d3c9}
.hamburger svg{width:20px;height:20px;stroke:var(--c-text);stroke-width:1.9;fill:none;stroke-linecap:round}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:10px;font-size:15px;font-weight:600;
  transition:background var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
  white-space:nowrap;
}
.btn-primary{background:linear-gradient(135deg,var(--c-primary),var(--c-primary-deep));color:#fff}
.btn-primary:hover{background:var(--c-primary-deep);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{border:1px solid var(--c-primary);color:var(--c-primary);background:transparent}
.btn-ghost:hover{background:rgba(75,46,131,.08);transform:translateY(-1px)}
.btn-accent{background:linear-gradient(135deg,#FF9A52,var(--c-accent));color:#2E1B0E}
.btn-accent:hover{background:var(--c-accent);color:#23140A;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-on-dark{border:1px solid rgba(255,255,255,.4);color:#fff;background:transparent}
.btn-on-dark:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.7)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* 抽屉 */
.scrim{
  position:fixed;inset:0;background:rgba(23,18,31,.48);z-index:70;
  opacity:0;visibility:hidden;transition:opacity var(--dur) var(--ease),visibility var(--dur) var(--ease);
}
.scrim.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:308px;max-width:85vw;z-index:80;
  background:var(--c-surface);padding:22px;overflow-y:auto;
  transform:translateX(100%);transition:transform var(--dur) var(--ease);
  box-shadow:-8px 0 30px rgba(23,18,31,.18);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-title{font-size:16px;font-weight:700;color:var(--c-primary)}
.drawer-close{
  width:40px;height:40px;border-radius:var(--radius-s);border:1px solid var(--c-border);
  display:flex;align-items:center;justify-content:center;
}
.drawer-close svg{width:18px;height:18px;stroke:var(--c-text);stroke-width:1.9;fill:none;stroke-linecap:round}
.drawer-nav{display:grid;gap:4px;margin-bottom:20px}
.drawer-nav a{
  display:flex;align-items:center;min-height:46px;padding:0 14px;border-radius:var(--radius-s);
  font-size:15px;color:var(--c-text-2);transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.drawer-nav a:hover{background:var(--c-bg);color:var(--c-primary)}
.drawer-nav a.is-active{background:rgba(75,46,131,.08);color:var(--c-primary);font-weight:600}

/* 页头 */
.page-hero{
  position:relative;color:#fff;padding:64px 0 72px;
  background-image:linear-gradient(135deg,rgba(46,27,82,.94),rgba(75,46,131,.82)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:20px}
.crumbs a{transition:color var(--dur) var(--ease)}
.crumbs a:hover{color:var(--c-accent)}
.crumbs span.sep{color:rgba(255,255,255,.4)}
.crumbs .current{color:rgba(255,255,255,.92)}
.page-hero h1{font-size:36px;line-height:1.35;font-weight:700;max-width:820px}
.page-hero .lead{margin-top:16px;font-size:17px;color:rgba(255,255,255,.82);max-width:720px}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:24px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.status-dot{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.85);
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius-pill);padding:6px 14px;
}
.status-dot i{width:8px;height:8px;border-radius:50%;background:var(--c-mint);display:block;box-shadow:0 0 0 4px rgba(23,191,168,.22)}

/* 通用板块 */
.section{padding:88px 0}
.section-alt{background:var(--c-surface)}
.section-head{margin-bottom:36px;max-width:760px}
.section-head.row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;max-width:none}
.section-head h2{font-size:26px;font-weight:600;line-height:1.5;display:flex;align-items:center}
.section-head h2::before{
  content:"";width:4px;height:22px;border-radius:2px;background:var(--c-primary);
  margin-right:12px;flex:0 0 auto;
}
.section-head p{margin-top:12px;color:var(--c-text-2);font-size:16px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;
  color:var(--c-primary);border-bottom:1px solid transparent;transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
  min-height:44px;
}
.text-link:hover{border-color:var(--c-primary)}
.text-link svg{width:16px;height:16px;stroke:currentColor;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round}

/* 词条卡双列错落 */
.term-grid{column-count:2;column-gap:24px}
.term-card{
  break-inside:avoid;position:relative;overflow:hidden;
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--radius-l);padding:24px;margin:0 0 24px;
  box-shadow:var(--shadow-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.term-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.term-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#dcd5ca}
.term-card:hover::before{transform:scaleX(1)}
.term-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:12px}
.term-card h3{font-size:19px;font-weight:600;line-height:1.55}
.badge{
  display:inline-flex;align-items:center;flex:0 0 auto;
  padding:4px 12px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-soft{background:var(--c-accent-soft);color:var(--c-primary)}
.badge-mint{background:rgba(23,191,168,.14);color:#0E8478}
.badge-line{border:1px solid var(--c-border);color:var(--c-text-3);background:var(--c-bg)}
.term-list{display:grid;gap:8px}
.term-list li{
  position:relative;padding-left:16px;font-size:15px;line-height:1.85;color:var(--c-text-2);
}
.term-list li::before{
  content:"";position:absolute;left:2px;top:13px;width:5px;height:5px;border-radius:50%;
  background:var(--c-primary);opacity:.55;
}
.term-note{margin-top:14px;padding-top:14px;border-top:1px dashed var(--c-border);font-size:13px;color:var(--c-text-3)}

/* 排查顺序 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:8px}
.flow-item{position:relative;padding-top:26px;border-top:1px solid var(--c-border)}
.flow-item::after{
  content:"";position:absolute;top:-4px;left:0;width:8px;height:8px;border-radius:50%;
  background:var(--c-primary);
}
.flow-num{
  font-size:13px;font-weight:700;color:var(--c-accent);letter-spacing:.08em;margin-bottom:6px;display:block;
}
.flow-item h3{font-size:19px;font-weight:600;margin-bottom:8px}
.flow-item p{font-size:15px;color:var(--c-text-2)}

/* 相关链接卡 */
.link-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.link-card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.link-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--c-accent);
  transform:scaleX(0);transform-origin:left;transition:transform var(--dur) var(--ease);z-index:2;
}
.link-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.link-card:hover::before{transform:scaleX(1)}
.link-thumb{position:relative;aspect-ratio:16/9;background:#EFEBE4;overflow:hidden}
.link-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--dur) var(--ease)}
.link-card:hover .link-thumb img{transform:scale(1.03)}
.link-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.link-body h3{font-size:19px;font-weight:600;transition:color var(--dur) var(--ease)}
.link-card:hover .link-body h3{color:var(--c-primary)}
.link-body p{font-size:15px;color:var(--c-text-2);line-height:1.8}
.link-foot{margin-top:auto;padding-top:12px;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3)}

/* FAQ */
.faq-wrap{max-width:860px}
.faq-item{border-bottom:1px solid var(--c-border)}
.faq-item:first-child{border-top:1px solid var(--c-border)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 0;font-size:17px;font-weight:600;transition:color var(--dur) var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-primary)}
.faq-icon{
  position:relative;width:22px;height:22px;flex:0 0 auto;
  transition:transform var(--dur) var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-body{padding:0 0 20px;font-size:15px;line-height:1.85;color:var(--c-text-2);max-width:70ch}

/* CTA 带 */
.cta-band{background:var(--c-dark);color:#fff;padding:72px 0}
.cta-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.cta-band h2{font-size:26px;font-weight:600;line-height:1.5}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.72);font-size:16px;max-width:52ch}
.cta-form{background:var(--c-surface);border-radius:var(--radius-l);padding:24px;box-shadow:var(--shadow-2)}
.cta-form label{display:block;font-size:13px;color:var(--c-text-3);margin-bottom:8px}
.cta-form .row{display:grid;gap:14px}
.form-field input,.form-field textarea{
  width:100%;padding:14px;border-radius:var(--radius-s);border:1px solid var(--c-border);
  background:var(--c-bg);font-size:15px;transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease);
}
.form-field input:focus,.form-field textarea:focus{
  outline:none;background:var(--c-surface);border-color:var(--c-accent);
  box-shadow:0 0 0 3px rgba(255,138,61,.18);
}
.form-field textarea{min-height:96px;resize:vertical}
.form-error{display:none;margin-top:8px;font-size:12px;color:#D9534F}
.form-field.has-error input,.form-field.has-error textarea{border-color:#D9534F}
.form-field.has-error .form-error{display:block}
.form-hint{margin-top:12px;font-size:12px;color:var(--c-text-3)}

/* 页脚 */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:0}
.footer-col{padding:0 24px;border-left:1px solid rgba(255,255,255,.1)}
.footer-col:first-child{border-left:0;padding-left:0}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;margin-bottom:14px}
.footer-brand .logo-mark{background:linear-gradient(135deg,#5B3A9E,var(--c-primary-deep))}
.footer-text{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66)}
.footer-h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-links{display:grid;gap:10px;font-size:14px}
.footer-links a{color:rgba(255,255,255,.72);transition:color var(--dur) var(--ease)}
.footer-links a:hover{color:var(--c-accent)}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.1);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* 断点 */
@media (max-width:1080px){
  .main-nav{gap:0}
  .nav-link{padding:0 9px;font-size:14px}
  .header-actions .btn{display:none}
  .hamburger{display:inline-flex}
  .cta-grid{grid-template-columns:1fr;gap:32px}
}
@media (max-width:900px){
  .section{padding:56px 0}
  .page-hero{padding:48px 0 56px}
  .page-hero h1{font-size:28px}
  .term-grid{column-count:1}
  .flow{grid-template-columns:repeat(2,1fr);gap:20px}
  .link-cards{grid-template-columns:1fr;gap:20px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-col{border-left:0;padding:0 0 28px}
  .footer-col:nth-child(odd){padding-right:20px}
  .footer-bottom{margin-top:20px}
}
@media (max-width:640px){
  body{font-size:16px}
  .container{padding:0 18px}
  .topbar-right{display:none}
  .topbar-tip{max-width:none}
  .page-hero h1{font-size:26px}
  .page-hero .lead{font-size:16px}
  .section-head h2{font-size:22px}
  .term-card{padding:18px}
  .link-body{padding:16px 18px 18px}
  .cta-band{padding:56px 0}
  .cta-band h2{font-size:22px}
  .btn{padding:12px 18px}
  .hero-actions .btn{width:100%}
  .flow{grid-template-columns:1fr}
  .site-footer{padding:48px 0 0}
  .footer-grid{grid-template-columns:1fr}
  .footer-col{padding:0 0 26px}
  .footer-col:nth-child(odd){padding-right:0}
}
@media (max-width:420px){
  .topbar-tip{display:none}
  .brand span.brand-text{font-size:16px}
}

/* roulang page: category4 */
:root{
  --c-primary:#4B2E83;
  --c-primary-deep:#2E1B52;
  --c-accent:#FF8A3D;
  --c-accent-soft:#FFE4D1;
  --c-mint:#17BFA8;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-dark:#17121F;
  --c-border:#E7E2DA;
  --c-text:#1C1720;
  --c-text-2:#4A4552;
  --c-text-3:#8A8494;
  --radius-s:8px;
  --radius-m:12px;
  --radius-l:16px;
  --radius-pill:999px;
  --shadow-1:0 2px 10px rgba(23,18,31,.06);
  --shadow-2:0 12px 28px rgba(46,27,82,.14);
  --dur:.22s;
  --ease:cubic-bezier(.2,.7,.3,1);
  --danger:#D9534F;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  color:var(--c-text);
  background:var(--c-bg);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
dl,dd,dt{margin:0;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}

.container{max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-dark);color:#D9D4E2;height:36px;display:flex;align-items:center;font-size:13px;}
.topbar .container{display:flex;align-items:center;justify-content:space-between;width:100%;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:14px;min-width:0;}
.topbar-domain{color:#fff;font-weight:600;letter-spacing:.04em;}
.topbar-tip{color:rgba(233,229,240,.72);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-right{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.topbar-right a{color:#EDE9F4;transition:color var(--dur) var(--ease);}
.topbar-right a:hover{color:var(--c-accent);}
.topbar-sep{width:1px;height:12px;background:rgba(255,255,255,.22);}

/* ---------- 主导航 ---------- */
.site-header{background:var(--c-surface);border-bottom:1px solid var(--c-border);position:sticky;top:0;z-index:60;transition:box-shadow var(--dur) var(--ease);}
.site-header.is-stuck{box-shadow:var(--shadow-1);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--c-primary) 0%,#63409E 100%);display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.logo-mark svg{width:20px;height:20px;}
.logo-text{font-size:19px;font-weight:700;letter-spacing:.02em;color:var(--c-text);}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{position:relative;display:inline-flex;align-items:center;height:68px;padding:0 14px;font-size:15px;font-weight:500;color:var(--c-text-2);transition:color var(--dur) var(--ease);}
.nav-link:hover{color:var(--c-primary);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--c-primary);border-radius:2px;}
.header-actions{display:flex;align-items:center;gap:12px;}
.hamburger{display:none;width:44px;height:44px;border-radius:var(--radius-s);align-items:center;justify-content:center;}
.hamburger span{display:block;width:20px;height:2px;background:var(--c-text);border-radius:2px;position:relative;}
.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:20px;height:2px;background:var(--c-text);border-radius:2px;}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}
.hamburger:hover{background:var(--c-bg);}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:12px 22px;font-size:15px;font-weight:600;transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),box-shadow var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);}
.btn-primary{background:var(--c-primary);color:#fff;border:1px solid var(--c-primary);}
.btn-primary:hover{background:var(--c-primary-deep);border-color:var(--c-primary-deep);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--c-primary);border:1px solid var(--c-primary);}
.btn-ghost:hover{background:rgba(75,46,131,.08);transform:translateY(-1px);}
.btn-accent{background:var(--c-accent);color:#2A1405;border:1px solid var(--c-accent);}
.btn-accent:hover{background:#FF9B58;border-color:#FF9B58;transform:translateY(-1px);box-shadow:0 12px 28px rgba(255,138,61,.28);}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- 抽屉 ---------- */
.drawer-overlay{position:fixed;inset:0;background:rgba(23,18,31,.48);opacity:0;visibility:hidden;transition:opacity var(--dur) var(--ease),visibility var(--dur) var(--ease);z-index:80;}
.drawer-overlay.is-open{opacity:1;visibility:visible;}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);background:var(--c-surface);z-index:90;transform:translateX(102%);transition:transform .28s var(--ease);display:flex;flex-direction:column;padding:20px;overflow-y:auto;box-shadow:-8px 0 30px rgba(23,18,31,.2);}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--c-border);}
.drawer-close{width:40px;height:40px;border-radius:var(--radius-s);font-size:22px;line-height:1;color:var(--c-text-2);display:flex;align-items:center;justify-content:center;}
.drawer-close:hover{background:var(--c-bg);color:var(--c-primary);}
.drawer-nav{display:flex;flex-direction:column;padding:14px 0;gap:2px;}
.drawer-link{padding:13px 10px;border-radius:var(--radius-s);font-size:16px;color:var(--c-text-2);font-weight:500;transition:background var(--dur) var(--ease),color var(--dur) var(--ease);min-height:44px;display:flex;align-items:center;}
.drawer-link:hover{background:var(--c-bg);color:var(--c-primary);}
.drawer-link.is-active{color:var(--c-primary);font-weight:600;background:rgba(75,46,131,.07);}
.drawer-cta{margin-top:12px;width:100%;}
body.no-scroll{overflow:hidden;}

/* ---------- 页头 Hero ---------- */
.page-hero{position:relative;background-image:linear-gradient(135deg,rgba(46,27,82,.92) 0%,rgba(75,46,131,.74) 52%,rgba(23,18,31,.9) 100%),url("/assets/images/backpic/back-2.webp");background-size:cover;background-position:center;color:#fff;overflow:hidden;}
.page-hero .container{position:relative;z-index:2;padding-top:72px;padding-bottom:72px;}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:48px;align-items:center;}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;color:#D8CDEE;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:var(--radius-pill);padding:5px 14px;margin-bottom:18px;}
.dot-online{width:8px;height:8px;border-radius:50%;background:var(--c-mint);box-shadow:0 0 0 4px rgba(23,191,168,.22);}
.page-hero h1{font-size:36px;line-height:1.35;font-weight:700;letter-spacing:.01em;}
.hero-sub{margin-top:16px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.84);max-width:34em;}
.hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px;}
.page-hero .btn-ghost{color:#fff;border-color:rgba(255,255,255,.6);}
.page-hero .btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff;}
.hero-note{margin-top:18px;font-size:13px;color:rgba(255,255,255,.66);}
.hero-panel{background:rgba(255,255,255,.97);border-radius:var(--radius-l);padding:22px;box-shadow:var(--shadow-2);color:var(--c-text);}
.hero-panel h2{font-size:16px;font-weight:600;color:var(--c-primary-deep);display:flex;align-items:center;gap:8px;margin-bottom:14px;}
.hero-panel h2::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--c-primary);}
.panel-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:11px 0;border-bottom:1px dashed var(--c-border);font-size:14px;}
.panel-row:last-child{border-bottom:none;padding-bottom:0;}
.panel-key{color:var(--c-text-2);}
.panel-val{font-weight:600;color:var(--c-primary-deep);}
.tag-mint{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:#0C7C6C;background:rgba(23,191,168,.14);border-radius:var(--radius-pill);padding:3px 10px;}
.tag-mint::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-mint);}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:var(--c-surface);border-bottom:1px solid var(--c-border);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13px;color:var(--c-text-3);}
.crumb a{color:var(--c-text-2);transition:color var(--dur) var(--ease);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:var(--c-border);}
.crumb .current{color:var(--c-text-3);}

/* ---------- 板块 ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.section-head h2,.h2-line{position:relative;font-size:26px;font-weight:600;line-height:1.45;padding-left:16px;color:var(--c-text);}
.section-head h2::before,.h2-line::before{content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:2px;background:var(--c-primary);}
.section-desc{color:var(--c-text-2);font-size:16px;max-width:52em;margin-top:12px;}
.section-head .section-desc{margin-top:0;max-width:30em;font-size:15px;}
.lead{font-size:17px;color:var(--c-text-2);max-width:38em;}

/* ---------- 行式规格卡 ---------- */
.spec-stack{display:flex;flex-direction:column;gap:24px;}
.spec-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-l);box-shadow:var(--shadow-1);padding:8px 24px 20px;position:relative;overflow:hidden;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);}
.spec-card::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform var(--dur) var(--ease);}
.spec-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.spec-card:hover::before{transform:scaleX(1);}
.spec-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0 14px;}
.spec-head h3{font-size:19px;font-weight:600;color:var(--c-text);}
.spec-badge{font-size:12px;font-weight:600;color:var(--c-primary);background:var(--c-accent-soft);border-radius:var(--radius-pill);padding:4px 12px;white-space:nowrap;}
.spec-list{border-top:1px solid var(--c-border);}
.spec-row{display:flex;gap:20px;padding:15px 0;border-bottom:1px solid var(--c-border);align-items:flex-start;}
.spec-row:last-child{border-bottom:none;}
.spec-key{flex:0 0 172px;font-size:15px;font-weight:600;color:var(--c-text-2);}
.spec-val{flex:1;font-size:15px;color:var(--c-text-2);line-height:1.85;}
.spec-val strong{color:var(--c-text);font-weight:600;}

/* ---------- 图文块 ---------- */
.media-block{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:center;}
.media-block + .media-block{margin-top:56px;}
.media-block.reverse .media-text{order:1;}
.media-block.reverse .media-figure{order:2;}
.media-figure{position:relative;border-radius:var(--radius-l);overflow:hidden;background:#EDE9E2;aspect-ratio:16/10;box-shadow:var(--shadow-1);}
.media-figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.media-figure:hover img{transform:scale(1.03);}
.media-text h3{font-size:19px;font-weight:600;margin-bottom:14px;}
.media-text p{color:var(--c-text-2);font-size:16px;line-height:1.85;margin-bottom:14px;}
.check-list{display:flex;flex-direction:column;gap:10px;margin-top:6px;}
.check-list li{position:relative;padding-left:26px;font-size:15px;color:var(--c-text-2);}
.check-list li::before{content:"";position:absolute;left:0;top:.62em;width:14px;height:8px;border-left:2px solid var(--c-mint);border-bottom:2px solid var(--c-mint);transform:rotate(-45deg);border-radius:1px;}

/* ---------- 相关链接 ---------- */
.link-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.link-card{display:flex;flex-direction:column;gap:8px;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-l);padding:22px;box-shadow:var(--shadow-1);transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);position:relative;overflow:hidden;min-height:100%;}
.link-card::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform var(--dur) var(--ease);}
.link-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D9D2E7;}
.link-card:hover::before{transform:scaleX(1);}
.link-card h3{font-size:19px;font-weight:600;transition:color var(--dur) var(--ease);}
.link-card:hover h3{color:var(--c-primary);}
.link-card p{font-size:14px;color:var(--c-text-2);line-height:1.8;}
.link-more{font-size:13px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;margin-top:4px;}
.link-more::after{content:"→";transition:transform var(--dur) var(--ease);}
.link-card:hover .link-more::after{transform:translateX(3px);}

/* ---------- FAQ ---------- */
.faq-list{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-l);box-shadow:var(--shadow-1);padding:8px 24px;max-width:900px;}
.faq-item{border-bottom:1px solid var(--c-border);}
.faq-item:last-child{border-bottom:none;}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 0;font-size:17px;font-weight:600;color:var(--c-text);transition:color var(--dur) var(--ease);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--c-primary);}
.faq-item summary::after{content:"+";font-size:22px;font-weight:400;color:var(--c-primary);line-height:1;transition:transform var(--dur) var(--ease);flex-shrink:0;}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-body{padding:0 0 18px;font-size:15px;line-height:1.85;color:var(--c-text-2);max-width:46em;}

/* ---------- CTA 带 ---------- */
.cta-band{background:linear-gradient(135deg,var(--c-dark) 0%,#241637 55%,#33205A 100%);color:#fff;}
.cta-band .container{padding-top:64px;padding-bottom:64px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);gap:40px;align-items:center;}
.cta-band h2{font-size:26px;font-weight:600;line-height:1.45;}
.cta-band p{margin-top:12px;font-size:16px;color:rgba(255,255,255,.78);max-width:34em;}
.cta-form{display:flex;gap:12px;flex-wrap:wrap;}
.cta-form input{flex:1;min-width:200px;padding:14px 16px;border-radius:var(--radius-s);border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);color:#fff;font-size:15px;transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease);}
.cta-form input::placeholder{color:rgba(255,255,255,.5);}
.cta-form input:focus{outline:none;border-color:var(--c-accent);background:rgba(255,255,255,.12);box-shadow:0 0 0 3px rgba(255,138,61,.22);}
.cta-hint{margin-top:12px;font-size:12px;color:rgba(255,255,255,.55);}
.cta-hint.is-error{color:#FFB4B0;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:#CFC9D9;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 40px;}
.footer-col h4,.footer-h4{font-size:15px;font-weight:600;color:#fff;margin:0 0 16px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .logo-mark{width:32px;height:32px;}
.footer-brand span:last-child{font-size:18px;font-weight:700;color:#fff;}
.footer-text{font-size:14px;line-height:1.85;color:rgba(207,201,217,.82);}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(207,201,217,.86);transition:color var(--dur) var(--ease);}
.footer-links a:hover{color:var(--c-accent);}
.footer-links span{font-size:14px;color:rgba(207,201,217,.7);}
.footer-col{border-right:1px solid rgba(255,255,255,.1);padding-right:24px;}
.footer-col:last-child{border-right:none;padding-right:0;}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.1);font-size:13px;color:rgba(207,201,217,.7);}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .container{padding:0 24px;}
}
@media (max-width:1080px){
  .main-nav{display:none;}
  .hamburger{display:inline-flex;}
  .header-actions .btn{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .page-hero .container{padding-top:56px;padding-bottom:56px;}
  .link-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-col{border-right:none;padding-right:0;}
}
@media (max-width:900px){
  .section{padding:56px 0;}
  .media-block{grid-template-columns:1fr;gap:24px;}
  .media-block.reverse .media-text{order:0;}
  .media-block.reverse .media-figure{order:0;}
  .cta-band .container{grid-template-columns:1fr;gap:24px;padding-top:48px;padding-bottom:48px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .spec-card{padding:8px 18px 18px;}
}
@media (max-width:640px){
  body{font-size:16px;}
  .page-hero h1{font-size:26px;}
  .h2-line,.section-head h2,.cta-band h2{font-size:22px;}
  .spec-head h3,.link-card h3,.media-text h3{font-size:17px;}
  .container{padding:0 16px;}
  .spec-card{padding:6px 16px 16px;}
  .spec-row{flex-direction:column;gap:4px;}
  .spec-key{flex:none;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;}
  .link-grid{grid-template-columns:1fr;}
  .faq-item summary{font-size:16px;padding:18px 0;}
  .cta-form{flex-direction:column;}
  .cta-form input,.cta-form .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:420px){
  .topbar-tip{max-width:150px;}
  .topbar-right{display:none;}
  .topbar-sep{display:none;}
  .logo-text{font-size:17px;}
}