/* roulang page: index */
:root{
  --c-primary:#1B5FD9;
  --c-primary-700:#14459E;
  --c-primary-50:#EEF4FF;
  --c-accent:#FF6B35;
  --c-ok:#12A594;
  --c-warn:#E8A317;
  --c-danger:#D9453D;
  --c-bg:#F7F9FC;
  --c-surface:#FFFFFF;
  --c-line:#E4EAF2;
  --c-text:#0F1B2D;
  --c-text-2:#5A6B80;
  --c-text-3:#8A98AB;
  --sh-1:0 1px 2px rgba(16,42,80,.05);
  --sh-2:0 6px 20px rgba(16,42,80,.07);
  --sh-3:0 16px 40px rgba(16,42,80,.10);
  --r-card:14px;
  --r-btn:10px;
  --r-panel:18px;
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  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}
button,input{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.01em}
h2{font-size:28px;font-weight:600}
h3{font-size:20px;font-weight:600}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--sec) 0}
.section--tight{padding:72px 0}
.sec-head{max-width:760px;margin-bottom:48px}
.sec-head h2{margin-bottom:14px}
.sec-head p{color:var(--c-text-2);font-size:16.5px;line-height:1.85}
.sec-head--row{max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:24px}
.eyebrow{display:inline-block;font-size:12.5px;font-weight:500;color:var(--c-primary);background:var(--c-primary-50);border-radius:999px;padding:4px 10px;margin-bottom:14px;letter-spacing:.04em}
.tabnum{font-variant-numeric:tabular-nums}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);border:1px solid transparent;cursor:pointer;font-weight:600;font-size:15.5px;padding:12px 22px;transition:all 180ms var(--ease);white-space:nowrap}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-700);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.16)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-50)}
.btn-text{color:var(--c-primary);font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px;border-bottom:1px solid var(--c-primary);padding-bottom:2px;transition:all 180ms var(--ease)}
.btn-text:hover{color:var(--c-primary-700);border-color:var(--c-primary-700);transform:translateY(2px)}
.btn-sm{padding:9px 18px;font-size:14.5px}
.btn:disabled{background:#CBD5E1;color:#fff;cursor:not-allowed;opacity:.6;transform:none}
.btn-block{width:100%}

.badge{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:500;color:var(--c-primary);background:var(--c-primary-50);border-radius:999px;padding:4px 10px}
.badge--ok{color:var(--c-ok);background:rgba(18,165,148,.10)}
.badge--ok::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--c-ok)}

/* ---------- 导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:900;height:72px;background:rgba(255,255,255,.55);backdrop-filter:blur(14px) saturate(150%);-webkit-backdrop-filter:blur(14px) saturate(150%);border-bottom:1px solid rgba(15,27,45,.06);box-shadow:var(--sh-2);transition:all 180ms var(--ease)}
.site-header.is-stuck{background:rgba(255,255,255,.94);height:64px;box-shadow:0 8px 26px rgba(16,42,80,.10)}
.nav-wrap{display:flex;align-items:center;gap:28px;height:100%}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:38px;height:38px;border-radius:11px;background:var(--c-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:19px;box-shadow:var(--sh-1)}
.logo-text{display:flex;flex-direction:column;line-height:1.18}
.logo-top{font-size:12px;color:var(--c-text-3);letter-spacing:.08em}
.logo-bottom{font-size:16px;font-weight:700;color:var(--c-text)}
.site-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.site-nav a{position:relative;font-size:15px;color:var(--c-text-2);padding:8px 12px;border-radius:8px;transition:all 180ms var(--ease)}
.site-nav a::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;width:0;background:var(--c-primary);transition:width 180ms var(--ease)}
.site-nav a:hover{color:var(--c-primary);background:var(--c-primary-50)}
.site-nav a:hover::after{width:calc(100% - 24px)}
.site-nav a.active{color:var(--c-primary);font-weight:600}
.site-nav a.active::after{width:24px}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.icon-btn{width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);background:rgba(255,255,255,.8);color:var(--c-text-2);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all 180ms var(--ease)}
.icon-btn:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-primary-50)}
.nav-search{position:relative;display:flex;align-items:center}
.search-field{position:absolute;right:0;top:50%;transform:translateY(-50%) scale(.96);transform-origin:right center;width:0;opacity:0;pointer-events:none;background:rgba(255,255,255,.96);border:1px solid var(--c-line);border-radius:10px;padding:9px 36px 9px 14px;font-size:14.5px;transition:all 180ms var(--ease);box-shadow:var(--sh-2)}
.nav-search.is-open .search-field{width:260px;opacity:1;pointer-events:auto;transform:translateY(-50%) scale(1)}
.search-field:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,95,217,.12)}
.hamburger{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);background:rgba(255,255,255,.8);color:var(--c-text);cursor:pointer;align-items:center;justify-content:center}

/* 移动抽屉 */
.drawer{position:fixed;inset:0;z-index:1000;background:#fff;transform:translateX(100%);transition:transform 220ms var(--ease);display:flex;flex-direction:column;padding:20px 20px 28px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);background:#fff;color:var(--c-text);cursor:pointer}
.drawer nav{display:flex;flex-direction:column}
.drawer nav a{font-size:18px;line-height:56px;border-bottom:1px solid var(--c-line);color:var(--c-text)}
.drawer nav a.active{color:var(--c-primary);font-weight:600}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding-top:24px}
.drawer-search{width:100%;height:44px;border:1px solid var(--c-line);border-radius:10px;padding:0 14px;margin-top:16px}
.scrim{position:fixed;inset:0;background:rgba(15,27,45,.45);opacity:0;pointer-events:none;transition:opacity 220ms var(--ease);z-index:990}
.scrim.is-open{opacity:1;pointer-events:auto}
body.no-scroll{overflow:hidden}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding-top:72px;background:var(--c-primary-50)}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;opacity:.9}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(27,95,217,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(27,95,217,.05) 1px,transparent 1px);background-size:48px 48px}
.hero-veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.88) 0%,rgba(247,249,252,.95) 100%)}
.hero-inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding-top:96px;padding-bottom:88px;min-height:620px}
.hero-copy h1{font-size:40px;font-weight:700;margin:16px 0 18px;max-width:14em}
.hero-sub{font-size:17px;color:var(--c-text-2);max-width:31em;margin-bottom:30px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.trust-row{display:flex;flex-wrap:wrap;gap:10px 22px;padding-top:22px;border-top:1px solid var(--c-line)}
.trust-row li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-text-2)}
.trust-row i{color:var(--c-primary);font-size:15px}
.hero-visual{position:relative}
.hero-visual img{border-radius:var(--r-panel);box-shadow:var(--sh-3);width:100%;aspect-ratio:16/12;object-fit:cover}
.hero-chip{position:absolute;left:-18px;bottom:26px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-2);padding:12px 16px;display:flex;align-items:center;gap:10px;font-size:14px;color:var(--c-text-2)}
.hero-chip i{color:var(--c-ok);font-size:18px}

/* ---------- 痛点 ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.pain-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:24px;display:flex;gap:20px;transition:all 180ms var(--ease)}
.pain-item:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.pain-num{font-size:32px;font-weight:700;color:var(--c-accent);line-height:1.1;font-variant-numeric:tabular-nums;flex-shrink:0;min-width:48px}
.pain-item h3{font-size:19px;margin-bottom:8px}
.pain-item p{font-size:15px;color:var(--c-text-2);line-height:1.7;margin:0}

/* ---------- 指引 zigzag ---------- */
.zig{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:36px 0}
.zig + .zig{border-top:1px solid var(--c-line)}
.zig-media img{border-radius:var(--r-panel);box-shadow:var(--sh-2);width:100%;aspect-ratio:16/11;object-fit:cover}
.zig-body h3{font-size:24px;margin:12px 0 14px}
.zig-body > p{color:var(--c-text-2);font-size:15.5px;margin-bottom:18px}
.zig-list{display:flex;flex-direction:column;gap:10px;margin-bottom:22px}
.zig-list li{display:flex;gap:10px;font-size:15px;color:var(--c-text-2);line-height:1.7}
.zig-list i{color:var(--c-primary);margin-top:6px;font-size:14px}
.zig--rev .zig-media{order:2}

/* ---------- 数据区 ---------- */
.stats{background:var(--c-primary-50);border-radius:var(--r-panel);padding:48px 32px;border:1px solid #DCE7F9}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:0 24px;text-align:center;border-right:1px solid #D3E0F7}
.stat:last-child{border-right:0}
.stat-num{font-size:40px;font-weight:700;color:var(--c-primary-700);line-height:1.1;font-variant-numeric:tabular-nums}
.stat-label{font-size:14px;color:var(--c-text-2);margin-top:8px}
.stats-note{margin-top:28px;padding-top:20px;border-top:1px solid #D3E0F7;font-size:13px;color:var(--c-text-3);text-align:center}

/* ---------- 证言 ---------- */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.quote-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-2);padding:26px;display:flex;flex-direction:column;transition:all 180ms var(--ease)}
.quote-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3)}
.quote-mark{font-size:38px;line-height:1;color:rgba(27,95,217,.22);font-weight:700}
.quote-card blockquote{margin:12px 0 22px;font-size:16px;line-height:1.75;color:var(--c-text);flex:1}
.quote-person{display:flex;align-items:center;gap:12px;padding-top:18px;border-top:1px solid var(--c-line)}
.quote-avatar{width:44px;height:44px;border-radius:50%;background:var(--c-primary-50);color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-weight:600;font-size:16px}
.quote-name{font-size:15px;font-weight:600}
.quote-role{font-size:13px;color:var(--c-text-3)}

/* ---------- 资讯卡片 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;transition:all 180ms var(--ease)}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3)}
.post-cover{display:block;overflow:hidden;border-radius:var(--r-card) var(--r-card) 0 0}
.post-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 240ms var(--ease)}
.post-card:hover .post-cover img{transform:scale(1.03)}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{font-size:16.5px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card:hover .post-body h3{color:var(--c-primary)}
.post-body p{font-size:14px;color:var(--c-text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin:0}
.post-meta{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-text-3)}
.post-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--c-text-3)}
.post-meta .link-more{margin-left:auto;color:var(--c-primary);font-weight:600;font-size:13px}
.post-meta .link-more:hover{text-decoration:underline}

.empty-state{text-align:center;padding:48px 24px;background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-card)}
.empty-state i{font-size:64px;color:rgba(27,95,217,.3);margin-bottom:16px;display:block}
.empty-state h3{font-size:16px;margin-bottom:8px}
.empty-state p{font-size:14px;color:var(--c-text-2);margin-bottom:14px}

.skeleton-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:24px}
.is-loading{height:280px;border-radius:var(--r-card);background:linear-gradient(100deg,var(--c-primary-50) 20%,var(--c-bg) 45%,var(--c-primary-50) 70%);background-size:220% 100%;animation:sk 1.2s linear infinite}
@keyframes sk{0%{background-position:120% 0}100%{background-position:-20% 0}}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:12px;box-shadow:var(--sh-1);margin-bottom:14px;overflow:hidden;transition:box-shadow 180ms var(--ease)}
.faq-item:hover{box-shadow:var(--sh-2)}
.faq-q{width:100%;background:none;border:0;text-align:left;padding:20px 22px;font-size:17px;font-weight:600;color:var(--c-text);cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px}
.faq-q i{color:var(--c-primary);transition:transform 180ms var(--ease);font-size:14px}
.faq-item.is-open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 180ms var(--ease)}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--c-text-2);margin:0}
.faq-item.is-open .faq-a{max-height:340px}

/* ---------- CTA ---------- */
.cta-panel{position:relative;overflow:hidden;background:var(--c-primary-50);border:1px solid #DCE7F9;border-radius:var(--r-panel);padding:48px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-panel::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(27,95,217,.06),transparent 60%);pointer-events:none}
.cta-panel > *{position:relative;z-index:1}
.cta-panel h2{font-size:26px;margin-bottom:10px}
.cta-panel p{font-size:15.5px;color:var(--c-text-2);max-width:34em;margin:0}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}

/* ---------- 表单 ---------- */
.form-row{display:flex;gap:12px;margin-top:20px}
.form-row input{flex:1;height:44px;border:1px solid var(--c-line);border-radius:var(--r-btn);padding:0 14px;background:#fff;transition:all 180ms var(--ease)}
.form-row input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,95,217,.12)}
.form-hint{font-size:13px;color:var(--c-text-3);margin-top:10px}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--c-line);padding:64px 0 0;margin-top:var(--sec)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-brand p{font-size:14px;color:var(--c-text-2);line-height:1.75;margin:16px 0 18px;max-width:24em}
.footer-qr{width:96px;height:96px;border:1px dashed var(--c-line);border-radius:12px;background:var(--c-bg);display:flex;align-items:center;justify-content:center;color:var(--c-text-3);font-size:12.5px;text-align:center;padding:8px}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{font-size:14px;color:var(--c-text-2);transition:all 180ms var(--ease)}
.footer-col a:hover{color:var(--c-primary);text-decoration:underline}
.footer-bottom{border-top:1px solid var(--c-line);padding:20px 0;display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-text-3)}
.footer-bottom a{color:var(--c-text-3);text-decoration:underline}
.footer-bottom a:hover{color:var(--c-primary)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:96%}
}
@media (max-width:1023px){
  :root{--sec:72px}
  .site-nav{display:none}
  .hamburger{display:flex}
  .nav-actions .btn{display:none}
  .hero-inner{grid-template-columns:1fr;padding-top:64px;padding-bottom:64px;min-height:auto;gap:36px}
  .hero-copy h1{font-size:34px;max-width:none}
  .pain-grid{grid-template-columns:1fr}
  .zig{grid-template-columns:1fr;gap:28px;padding:28px 0}
  .zig--rev .zig-media{order:0}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(-n+2){border-bottom:1px solid #D3E0F7;padding-bottom:24px}
  .quote-grid{grid-template-columns:repeat(2,1fr)}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .skeleton-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-panel{flex-direction:column;align-items:flex-start}
}
@media (max-width:767px){
  :root{--sec:52px}
  .container{padding:0 20px}
  .site-header{height:60px}
  .hero{padding-top:60px}
  .hero-copy h1{font-size:28px}
  .hero-sub{font-size:16px}
  .hero-visual img{aspect-ratio:16/11}
  .hero-chip{left:12px;bottom:12px;font-size:13px}
  h2{font-size:22px}
  h3{font-size:18px}
  .sec-head{margin-bottom:32px}
  .sec-head--row{flex-direction:column;align-items:flex-start;gap:12px}
  .quote-grid,.post-grid,.skeleton-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid #D3E0F7;padding-bottom:20px}
  .stat:last-child{border-bottom:0;padding-bottom:0}
  .cta-panel{padding:28px 20px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .form-row{flex-direction:column}
  .form-row input,.form-row .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  body{font-size:16px}
  .container{padding:0 16px}
  .hero-copy h1{font-size:26px}
  .pain-item{flex-direction:column;gap:10px}
  .pain-num{font-size:26px}
  .btn{width:100%}
  .btn-text{width:auto}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --c-primary:#1B5FD9;
  --c-primary-700:#14459E;
  --c-primary-50:#EEF4FF;
  --c-accent:#FF6B35;
  --c-ok:#12A594;
  --c-warn:#E8A317;
  --c-danger:#D9453D;
  --c-bg:#F7F9FC;
  --c-surface:#FFFFFF;
  --c-line:#E4EAF2;
  --c-text:#0F1B2D;
  --c-text-2:#5A6B80;
  --c-text-3:#8A98AB;
  --sh-1:0 1px 2px rgba(16,42,80,.05);
  --sh-2:0 6px 20px rgba(16,42,80,.07);
  --sh-3:0 16px 40px rgba(16,42,80,.10);
  --r-card:14px;
  --r-btn:10px;
  --r-hero:18px;
  --r-pill:999px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:180ms;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--c-text);
  background:var(--c-bg);
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--t) var(--ease),border-color var(--t) var(--ease);}
a:hover{color:var(--c-primary-700);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;}
p{margin:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}

/* ---------- header / nav ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  height:72px;
  background:rgba(255,255,255,.55);
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  backdrop-filter:blur(14px) saturate(150%);
  border-bottom:1px solid rgba(15,27,45,.06);
  box-shadow:var(--sh-2);
  transition:height var(--t) var(--ease),background var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.site-header.is-stuck{height:64px;background:rgba(255,255,255,.94);box-shadow:var(--sh-3);}
.header-inner{height:100%;display:flex;align-items:center;gap:28px;}
.logo{display:flex;align-items:center;gap:10px;color:var(--c-text);flex-shrink:0;}
.logo:hover{color:var(--c-text);}
.logo-mark{
  width:38px;height:38px;border-radius:11px;flex-shrink:0;
  background:linear-gradient(135deg,var(--c-primary) 0%,var(--c-primary-700) 100%);
  color:#fff;font-size:19px;font-weight:700;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-top{font-size:15.5px;font-weight:700;letter-spacing:.02em;}
.logo-bottom{font-size:12.5px;color:var(--c-text-2);letter-spacing:.06em;}
.site-nav{display:flex;align-items:center;gap:26px;margin-left:8px;}
.site-nav a{
  position:relative;
  font-size:15.5px;
  color:var(--c-text-2);
  padding:6px 0;
  font-weight:500;
}
.site-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
  background:var(--c-primary);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform var(--t) var(--ease);
}
.site-nav a:hover{color:var(--c-primary);}
.site-nav a:hover::after,.site-nav a.active::after{transform:scaleX(1);}
.site-nav a.active{color:var(--c-primary);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-btn);display:flex;align-items:center;justify-content:center;
  color:var(--c-text-2);border:1px solid transparent;transition:all var(--t) var(--ease);
}
.icon-btn:hover{color:var(--c-primary);background:var(--c-primary-50);}
.search-wrap{position:relative;display:flex;align-items:center;}
.search-box{
  width:0;opacity:0;overflow:hidden;
  transition:width var(--t) var(--ease),opacity var(--t) var(--ease),margin var(--t) var(--ease);
}
.search-wrap.is-open .search-box{width:260px;opacity:1;margin-right:8px;}
.search-box input{
  width:100%;height:40px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:rgba(255,255,255,.94);color:var(--c-text);font-size:14.5px;
}
.search-box input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,95,217,.12);}
.hamburger{display:none;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:0 22px;height:44px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),background var(--t) var(--ease),color var(--t) var(--ease),border-color var(--t) var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.18);}
.btn-primary[disabled],.btn-primary.is-disabled{background:#C7CFDB;color:#fff;opacity:.6;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-ghost{background:#fff;color:var(--c-primary);border:1px solid var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-50);color:var(--c-primary-700);}
.btn-text{color:var(--c-primary);border-bottom:1px solid currentColor;padding:0 0 2px;height:auto;border-radius:0;font-weight:600;}
.btn-text:hover{color:var(--c-primary-700);transform:translateY(2px);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}

/* ---------- badge ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:500;line-height:1.5;
  background:var(--c-primary-50);color:var(--c-primary);
}
.badge-ok{background:rgba(18,165,148,.12);color:#0C7A6D;}
.badge-warn{background:rgba(232,163,23,.14);color:#9A6B00;}
.badge-line{background:#fff;border:1px solid var(--c-line);color:var(--c-text-2);}
.dot-mark{width:8px;height:8px;border-radius:50%;background:var(--c-ok);display:inline-block;}

/* ---------- article hero ---------- */
.article-hero{
  position:relative;
  padding:132px 0 40px;
  background:var(--c-primary-50);
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  overflow:hidden;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(255,255,255,.90) 0%,rgba(247,249,252,.96) 72%,var(--c-bg) 100%);
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(27,95,217,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(27,95,217,.05) 1px,transparent 1px);
  background-size:48px 48px;pointer-events:none;
}
.article-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-2);flex-wrap:wrap;}
.breadcrumb a{color:var(--c-text-2);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:var(--c-text-3);}
.breadcrumb .current{color:var(--c-text-3);max-width:360px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-head{margin-top:22px;max-width:860px;}
.article-head h1{
  font-size:32px;font-weight:700;line-height:1.3;letter-spacing:.01em;margin-top:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.meta-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:18px;font-size:13px;color:var(--c-text-3);}
.meta-row i{color:var(--c-primary);margin-right:4px;}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--c-text-3);display:inline-block;}

/* ---------- article layout ---------- */
.article-section{padding:56px 0 0;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start;}
.article-main{min-width:0;}
.cover-figure{margin:0 0 32px;border-radius:16px;overflow:hidden;box-shadow:var(--sh-2);background:var(--c-surface);}
.cover-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.article-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:40px 44px 32px;
}
.reading-inner{max-width:780px;margin:0 auto;}

/* ---------- long-form typography ---------- */
.article-content{font-size:16.5px;line-height:1.85;color:var(--c-text);}
.article-content > *:first-child{margin-top:0;}
.article-content p{margin:0 0 1.1em;}
.article-content h2{
  font-size:22px;font-weight:600;line-height:1.35;margin:40px 0 16px;
  padding-left:12px;border-left:4px solid var(--c-primary);
}
.article-content h3{font-size:18px;font-weight:600;margin:28px 0 12px;}
.article-content h4{font-size:16.5px;font-weight:600;margin:22px 0 10px;color:var(--c-text);}
.article-content ul,.article-content ol{margin:0 0 1.1em;padding-left:0;}
.article-content ul li,.article-content ol li{position:relative;padding-left:22px;margin-bottom:.55em;line-height:1.75;}
.article-content ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--c-primary);transform:rotate(45deg);
}
.article-content ol{counter-reset:li;}
.article-content ol li{counter-increment:li;}
.article-content ol li::before{
  content:counter(li);position:absolute;left:0;top:.1em;width:16px;text-align:left;
  color:var(--c-primary);font-weight:700;font-size:14px;font-variant-numeric:tabular-nums;
}
.article-content blockquote{
  margin:24px 0;padding:16px 20px;border-left:3px solid var(--c-primary);
  background:var(--c-primary-50);border-radius:0 10px 10px 0;color:var(--c-text-2);font-size:16px;
}
.article-content img{border-radius:12px;margin:24px auto;box-shadow:var(--sh-2);}
.article-content a{color:var(--c-primary);border-bottom:1px solid rgba(27,95,217,.4);}
.article-content a:hover{color:var(--c-primary-700);border-bottom-color:var(--c-primary-700);}
.article-content figure{margin:24px 0;}
.article-content figcaption,.article-content .img-cap{
  text-align:center;font-size:13px;color:var(--c-text-3);margin-top:10px;
}
.article-content table{
  width:100%;border-collapse:collapse;font-size:15px;display:block;overflow-x:auto;
  border:1px solid var(--c-line);border-radius:10px;margin:24px 0;
}
.article-content thead{background:var(--c-primary-50);}
.article-content th,.article-content td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--c-line);white-space:nowrap;}
.article-content tbody tr:nth-child(even){background:#FAFCFF;}
.article-content hr{border:0;border-top:1px solid var(--c-line);margin:32px 0;}
.article-content code{
  background:var(--c-primary-50);color:var(--c-primary-700);padding:2px 6px;border-radius:6px;font-size:14.5px;
}

/* ---------- empty state ---------- */
.empty-state{
  text-align:center;padding:56px 24px;background:var(--c-surface);
  border:1px dashed var(--c-line);border-radius:var(--r-card);
}
.empty-state i{font-size:64px;color:rgba(27,95,217,.3);}
.empty-state h3{font-size:16px;font-weight:600;margin:18px 0 8px;}
.empty-state p{font-size:14px;color:var(--c-text-2);margin-bottom:18px;}

/* ---------- article footer blocks ---------- */
.tag-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:28px;padding-top:24px;border-top:1px solid var(--c-line);}
.tag-row .label{font-size:13px;color:var(--c-text-3);}
.tag{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:var(--r-pill);
  background:var(--c-primary-50);color:var(--c-primary);font-size:12.5px;font-weight:500;
  transition:all var(--t) var(--ease);
}
.tag:hover{background:var(--c-primary);color:#fff;}
.prev-next{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px;}
.pn-card{
  display:flex;flex-direction:column;gap:8px;padding:20px 22px;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
}
.pn-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#CFDDF5;}
.pn-card .pn-label{font-size:12.5px;color:var(--c-text-3);letter-spacing:.06em;}
.pn-card .pn-title{font-size:16px;font-weight:600;color:var(--c-text);line-height:1.5;}
.pn-card:hover .pn-title{color:var(--c-primary);}
.pn-card .pn-arrow{font-size:13px;color:var(--c-primary);}
.pn-next{text-align:right;align-items:flex-end;}

/* ---------- sidebar ---------- */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:22px;
}
.side-card h3{font-size:15.5px;font-weight:600;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3 i{color:var(--c-primary);font-size:14px;}
.toc-list li{margin-bottom:2px;}
.toc-list a{
  display:block;font-size:14px;color:var(--c-text-2);padding:7px 10px;border-radius:8px;
  transition:all var(--t) var(--ease);
}
.toc-list a:hover{background:var(--c-primary-50);color:var(--c-primary);}
.side-links li{padding:10px 0;border-bottom:1px dashed var(--c-line);}
.side-links li:last-child{border-bottom:0;padding-bottom:0;}
.side-links a{font-size:14px;color:var(--c-text-2);display:flex;gap:8px;align-items:flex-start;line-height:1.6;}
.side-links a:hover{color:var(--c-primary);}
.side-links i{color:var(--c-primary);font-size:11px;margin-top:7px;}
.side-cta{
  background:linear-gradient(135deg,var(--c-primary-50) 0%,#F8FBFF 100%);
  border:1px solid #D9E6FB;
}
.side-cta p{font-size:13.5px;color:var(--c-text-2);line-height:1.7;margin-bottom:16px;}
.side-cta .btn{width:100%;}

/* ---------- related ---------- */
.related-section{padding:72px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.section-head h2{font-size:26px;font-weight:700;position:relative;padding-left:14px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--c-primary);
}
.section-head p{font-size:14px;color:var(--c-text-2);margin-top:8px;}
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:#CFDDF5;}
.post-cover{position:relative;overflow:hidden;background:var(--c-primary-50);}
.post-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 220ms var(--ease);}
.post-card:hover .post-cover img{transform:scale(1.03);}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.post-body h3{
  font-size:16.5px;font-weight:600;line-height:1.5;color:var(--c-text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card:hover h3{color:var(--c-primary);}
.post-body p{
  font-size:14px;color:var(--c-text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-text-3);}
.post-meta .more{margin-left:auto;color:var(--c-primary);font-weight:600;font-size:13px;}
.post-meta .more:hover{color:var(--c-primary-700);}

/* ---------- CTA panel ---------- */
.cta-section{padding:72px 0 96px;}
.cta-panel{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:40px 44px;border-radius:var(--r-hero);
  background:var(--c-primary-50);
  background-image:linear-gradient(135deg,rgba(27,95,217,.06) 0%,rgba(255,255,255,0) 60%);
  border:1px solid #D9E6FB;box-shadow:var(--sh-2);
}
.cta-panel h2{font-size:26px;font-weight:700;}
.cta-panel p{font-size:15px;color:var(--c-text-2);margin-top:10px;max-width:560px;}
.cta-actions{display:flex;align-items:center;gap:18px;flex-shrink:0;}

/* ---------- footer ---------- */
.site-footer{background:#fff;border-top:1px solid var(--c-line);padding:64px 0 0;margin-top:8px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand p{font-size:14px;color:var(--c-text-2);line-height:1.8;margin-top:16px;max-width:320px;}
.footer-qr{
  margin-top:18px;width:104px;height:104px;border:1px dashed var(--c-line);border-radius:12px;
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12.5px;color:var(--c-text-3);line-height:1.6;background:var(--c-bg);
}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--c-text-2);line-height:1.6;}
.footer-col a:hover{color:var(--c-primary);text-decoration:underline;}
.footer-bottom{
  border-top:1px solid var(--c-line);padding:20px 0;display:flex;align-items:center;
  justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--c-text-3);
}
.footer-bottom a{color:var(--c-text-3);}
.footer-bottom a:hover{color:var(--c-primary);}

/* ---------- mobile drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,27,45,.45);opacity:0;visibility:hidden;
  transition:opacity var(--t) var(--ease),visibility var(--t) var(--ease);z-index:90;
}
body.nav-open .drawer-mask{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);background:#fff;z-index:100;
  transform:translateX(100%);transition:transform 200ms var(--ease);
  display:flex;flex-direction:column;padding:22px 22px 28px;overflow-y:auto;
}
body.nav-open .nav-drawer{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--c-line);}
.drawer-links{margin-top:8px;}
.drawer-links a{
  display:block;font-size:18px;color:var(--c-text);padding:16px 0;border-bottom:1px solid var(--c-line);
}
.drawer-links a.active{color:var(--c-primary);font-weight:600;}
.drawer-foot{margin-top:auto;padding-top:24px;display:flex;flex-direction:column;gap:12px;}
.drawer-foot .btn{width:100%;}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{max-width:96%;}
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:32px;}
}
@media (max-width:1023px){
  .site-nav{display:none;}
  .hamburger{display:flex;}
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .article-side{position:static;order:2;}
  .article-head h1{font-size:29px;}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-panel{flex-direction:column;align-items:flex-start;padding:34px;}
  .search-wrap{display:none;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .article-hero{padding:104px 0 32px;}
  .article-head h1{font-size:25px;}
  .article-card{padding:26px 20px 22px;border-radius:12px;}
  .article-content h2{font-size:20px;margin-top:32px;}
  .article-content h3{font-size:17.5px;}
  .prev-next{grid-template-columns:1fr;}
  .pn-next{text-align:left;align-items:flex-start;}
  .post-grid{grid-template-columns:1fr;}
  .section-head{flex-direction:column;align-items:flex-start;}
  .section-head h2{font-size:22px;}
  .cta-panel h2{font-size:22px;}
  .cta-actions{flex-direction:column;align-items:stretch;width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .site-footer{padding-top:48px;}
  .article-section{padding:36px 0 0;}
  .related-section,.cta-section{padding-top:52px;}
  .cta-section{padding-bottom:64px;}
}
@media (max-width:479px){
  .container{padding:0 16px;}
  .article-head h1{font-size:22px;}
  .logo-top{font-size:14px;}
  .logo-bottom{font-size:11.5px;}
  .btn{padding:0 16px;font-size:14.5px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --c-primary:#1B5FD9;
  --c-primary-700:#14459E;
  --c-primary-50:#EEF4FF;
  --c-accent:#FF6B35;
  --c-ok:#12A594;
  --c-warn:#E8A317;
  --c-danger:#D9453D;
  --c-bg:#F7F9FC;
  --c-surface:#FFFFFF;
  --c-line:#E4EAF2;
  --c-text:#0F1B2D;
  --c-text-2:#5A6B80;
  --c-text-3:#8A98AB;
  --sh-1:0 1px 2px rgba(16,42,80,.05);
  --sh-2:0 6px 20px rgba(16,42,80,.07);
  --sh-3:0 16px 40px rgba(16,42,80,.10);
  --r-card:14px;
  --r-btn:10px;
  --r-panel:18px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:.01em}
h1{font-size:38px;font-weight:700}
h2{font-size:28px;font-weight:600}
h3{font-size:20px;font-weight:600}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* 导航 */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  background:rgba(255,255,255,.55);
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  backdrop-filter:blur(14px) saturate(150%);
  border-bottom:1px solid rgba(15,27,45,.06);
  box-shadow:var(--sh-2);
  transition:background .18s var(--ease),box-shadow .18s var(--ease),height .18s var(--ease);
}
.site-header.is-stuck{background:rgba(255,255,255,.94);box-shadow:0 6px 24px rgba(16,42,80,.10)}
.nav-wrap{display:flex;align-items:center;gap:32px;height:72px;transition:height .18s var(--ease)}
.site-header.is-stuck .nav-wrap{height:64px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:36px;height:36px;border-radius:10px;
  background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;box-shadow:var(--sh-1);
}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-top{font-size:15px;font-weight:700;color:var(--c-text)}
.logo-bottom{font-size:12.5px;color:var(--c-text-2);letter-spacing:.04em}
.site-nav{display:flex;align-items:center;gap:26px;margin-left:12px}
.site-nav a{
  position:relative;
  font-size:15px;
  color:var(--c-text-2);
  padding:6px 0;
  transition:color .18s var(--ease);
}
.site-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--c-primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .18s var(--ease);
}
.site-nav a:hover,.site-nav a.active{color:var(--c-primary)}
.site-nav a:hover::after,.site-nav a.active::after{transform:scaleX(1)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.icon-btn{
  width:40px;height:40px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  color:var(--c-text-2);border:1px solid transparent;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.icon-btn:hover{background:var(--c-primary-50);color:var(--c-primary);border-color:#d8e3f5}
.icon-btn svg{width:19px;height:19px}
.search-panel{
  position:absolute;right:24px;top:64px;
  width:260px;background:rgba(255,255,255,.94);
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  box-shadow:var(--sh-3);padding:10px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s;
}
.search-panel.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.search-panel input{
  width:100%;height:44px;border:1px solid var(--c-line);border-radius:var(--r-btn);
  padding:0 14px;font:inherit;font-size:15px;color:var(--c-text);background:#fff;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.search-panel input::placeholder{color:var(--c-text-3)}
.search-panel input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,95,217,.12)}
.hamburger{
  display:none;width:42px;height:42px;border-radius:10px;
  align-items:center;justify-content:center;border:1px solid var(--c-line);background:#fff;color:var(--c-text);
}
.hamburger svg{width:20px;height:20px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-700);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.18)}
.btn-ghost{background:#fff;color:var(--c-primary);border:1px solid var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-50)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-size:14.5px;font-weight:600;
  border-bottom:1px solid var(--c-primary);padding-bottom:2px;
  transition:color .18s var(--ease),transform .18s var(--ease),border-color .18s var(--ease);
}
.btn-text:hover{color:var(--c-primary-700);border-color:var(--c-primary-700);transform:translateY(-2px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,27,45,.45);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .18s var(--ease),visibility .18s;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(360px,86vw);
  background:#fff;z-index:120;padding:20px;
  display:flex;flex-direction:column;gap:8px;
  transform:translateX(100%);transition:transform .18s var(--ease);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--c-line)}
.drawer-close{width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;color:var(--c-text-2)}
.drawer-close:hover{background:var(--c-primary-50);color:var(--c-primary)}
.drawer-nav{display:flex;flex-direction:column;margin-top:6px}
.drawer-nav a{
  font-size:18px;line-height:56px;color:var(--c-text);
  border-bottom:1px solid var(--c-line);transition:color .18s var(--ease)
}
.drawer-nav a.active{color:var(--c-primary);font-weight:600}
.drawer-nav a:hover{color:var(--c-primary)}
.drawer-cta{margin-top:auto;padding-top:20px;display:flex;flex-direction:column;gap:10px}

/* 顶部横幅 */
.page-banner{
  position:relative;overflow:hidden;
  background:var(--c-primary-50);
  padding:132px 0 52px;
  border-bottom:1px solid var(--c-line);
}
.page-banner::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(27,95,217,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(27,95,217,.07) 1px,transparent 1px);
  background-size:34px 34px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.7),rgba(0,0,0,0));
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),rgba(0,0,0,0));
}
.page-banner .container{position:relative;z-index:1}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-2);flex-wrap:wrap}
.crumbs a{transition:color .18s var(--ease)}
.crumbs a:hover{color:var(--c-primary);text-decoration:underline}
.crumbs .sep{color:var(--c-text-3)}
.crumbs .now{color:var(--c-text-3)}
.banner-title{margin-top:18px;max-width:760px;font-size:36px}
.banner-desc{margin-top:14px;max-width:660px;color:var(--c-text-2);font-size:16px}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:500;color:var(--c-primary);
  background:rgba(27,95,217,.10);border-radius:999px;padding:4px 12px;
}
.badge-dot::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--c-ok)}
.badge-warn::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--c-warn)}

/* 板块 */
.section{padding:96px 0}
.section-alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{max-width:680px;margin-bottom:44px}
.section-head h2{position:relative;padding-left:14px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--c-primary);
}
.section-head p{margin-top:14px;color:var(--c-text-2);font-size:16px}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-50);border-radius:999px;padding:4px 12px;margin-bottom:14px;
}

/* 入口行列表 */
.entry-list{display:flex;flex-direction:column;gap:16px}
.entry-row{
  position:relative;
  display:grid;grid-template-columns:200px 1fr;gap:24px;align-items:center;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:18px 26px 18px 18px;box-shadow:var(--sh-1);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.entry-row::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;border-radius:0 3px 3px 0;
  background:var(--c-primary);opacity:0;transition:opacity .18s var(--ease);
}
.entry-row:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#d5e2f7}
.entry-row:hover::before{opacity:1}
.entry-row img{width:200px;height:130px;object-fit:cover;border-radius:12px}
.entry-row h3{font-size:18px}
.entry-row p{margin-top:8px;color:var(--c-text-2);font-size:15px;line-height:1.7}

/* 编号步骤 */
.steps{counter-reset:step;display:flex;flex-direction:column;gap:18px;margin-top:8px}
.step{
  display:grid;grid-template-columns:64px 1fr;gap:20px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
}
.step-num{
  font-size:32px;font-weight:700;color:var(--c-primary);opacity:.45;
  font-variant-numeric:tabular-nums;line-height:1;
}
.step h3{font-size:18px}
.step p{margin-top:8px;color:var(--c-text-2);font-size:15px}
.step ul{margin-top:12px;display:flex;flex-direction:column;gap:8px}
.step li{position:relative;padding-left:22px;font-size:14.5px;color:var(--c-text-2)}
.step li::before{
  content:"";position:absolute;left:4px;top:10px;width:8px;height:8px;border-radius:50%;
  border:2px solid var(--c-primary);background:#fff;
}

/* 核对清单卡 */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.check-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.check-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3)}
.check-card h3{font-size:17px;display:flex;align-items:center;gap:10px}
.check-card h3 span{
  width:26px;height:26px;border-radius:8px;background:var(--c-primary-50);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;flex-shrink:0;
}
.check-card p{margin-top:10px;color:var(--c-text-2);font-size:15px;line-height:1.7}

/* FAQ */
.faq-wrap{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:12px;
  box-shadow:var(--sh-1);overflow:hidden;
}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;font-size:17px;font-weight:600;color:var(--c-text);
  transition:color .18s var(--ease),background .18s var(--ease);
}
.faq-q:hover{color:var(--c-primary)}
.faq-q svg{width:18px;height:18px;flex-shrink:0;color:var(--c-text-3);transition:transform .18s var(--ease),color .18s var(--ease)}
.faq-item.is-open .faq-q{color:var(--c-primary)}
.faq-item.is-open .faq-q svg{transform:rotate(180deg);color:var(--c-primary)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .18s var(--ease);
}
.faq-a p{padding:0 22px 20px;color:var(--c-text-2);font-size:15px;line-height:1.8}

/* 互链胶囊 */
.chip-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:999px;border:1px solid var(--c-line);background:#fff;
  font-size:14.5px;color:var(--c-text-2);box-shadow:var(--sh-1);
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease),transform .18s var(--ease);
}
.chip:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-primary-50);transform:translateY(-2px)}
.chip.is-current{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-primary-50);font-weight:600}

/* CTA 面板 */
.cta-panel{
  border-radius:var(--r-panel);
  background:linear-gradient(135deg,rgba(27,95,217,.06),rgba(27,95,217,0)),var(--c-primary-50);
  border:1px solid #dbe6f8;
  box-shadow:var(--sh-2);
  padding:44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-panel h2{font-size:26px}
.cta-panel p{margin-top:12px;color:var(--c-text-2);font-size:15.5px;max-width:560px}
.cta-actions{display:flex;align-items:center;gap:18px;flex-shrink:0}

/* 页脚 */
.site-footer{background:#fff;border-top:1px solid var(--c-line);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand p{margin-top:16px;color:var(--c-text-2);font-size:14px;line-height:1.8;max-width:300px}
.footer-qr{
  margin-top:18px;width:112px;height:112px;border-radius:12px;border:1px dashed var(--c-line);
  background:var(--c-bg);display:flex;align-items:center;justify-content:center;
  text-align:center;font-size:12.5px;color:var(--c-text-3);line-height:1.6;
}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a,.footer-col span{font-size:14px;color:var(--c-text-2);transition:color .18s var(--ease)}
.footer-col a:hover{color:var(--c-primary);text-decoration:underline}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--c-line);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}
.footer-bottom a{color:var(--c-text-3);text-decoration:underline}
.footer-bottom a:hover{color:var(--c-primary)}

/* 响应式 */
@media (max-width:1279px){
  .container{max-width:96%}
}
@media (max-width:1023px){
  h1{font-size:30px}
  .banner-title{font-size:30px}
  .site-nav{display:none}
  .hamburger{display:flex}
  .nav-actions .btn-sm{display:none}
  .section{padding:72px 0}
  .entry-row{grid-template-columns:180px 1fr}
  .entry-row img{width:180px;height:118px}
  .check-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-panel{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%;flex-wrap:wrap}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .nav-wrap{height:60px}
  .site-header.is-stuck .nav-wrap{height:60px}
  .page-banner{padding:104px 0 40px}
  .banner-title{font-size:26px}
  .banner-desc{font-size:15px}
  .section{padding:52px 0}
  .section-head{margin-bottom:30px}
  .section-head h2{font-size:22px}
  .entry-row{grid-template-columns:1fr;padding:18px}
  .entry-row img{width:100%;height:170px}
  .step{grid-template-columns:1fr;gap:12px;padding:20px}
  .step-num{font-size:26px}
  .cta-panel{padding:26px}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .search-panel{left:20px;right:20px;width:auto}
}
@media (max-width:479px){
  h1{font-size:24px}
  .banner-title{font-size:23px}
  .container{padding:0 16px}
  .nav-wrap{gap:16px}
  .logo-bottom{font-size:11.5px}
  .faq-q{font-size:16px;padding:18px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}

/* roulang page: category2 */
:root{
  --c-primary:#1B5FD9;
  --c-primary-700:#14459E;
  --c-primary-50:#EEF4FF;
  --c-accent:#FF6B35;
  --c-ok:#12A594;
  --c-warn:#E8A317;
  --c-danger:#D9453D;
  --c-bg:#F7F9FC;
  --c-surface:#FFFFFF;
  --c-line:#E4EAF2;
  --c-text:#0F1B2D;
  --c-text-2:#5A6B80;
  --c-text-3:#8A98AB;
  --sh-1:0 1px 2px rgba(16,42,80,.05);
  --sh-2:0 6px 20px rgba(16,42,80,.07);
  --sh-3:0 16px 40px rgba(16,42,80,.10);
  --r-card:14px;
  --r-btn:10px;
  --r-panel:18px;
  --r-badge:999px;
  --t:180ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t),transform var(--t);}
a:hover{color:var(--c-primary-700);}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{line-height:1.3;font-weight:600;letter-spacing:.01em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
body.is-locked{overflow:hidden;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.section{padding:76px 0;}
.section-tight{padding:56px 0;}
.sec-head{max-width:800px;margin-bottom:36px;}
.sec-title{
  font-size:28px;
  font-weight:600;
  border-left:4px solid var(--c-primary);
  padding-left:14px;
  margin-bottom:14px;
}
.sec-sub{font-size:16px;color:var(--c-text-2);line-height:1.8;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:500;color:var(--c-primary);
  background:var(--c-primary-50);border-radius:var(--r-badge);
  padding:4px 10px;line-height:1.6;
}
.badge.is-ok{color:var(--c-ok);background:rgba(18,165,148,.10);}
.badge.is-warn{color:#9A6B00;background:rgba(232,163,23,.14);}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;}
.badge.no-dot::before{display:none;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:background-color var(--t),color var(--t),border-color var(--t),box-shadow var(--t),transform var(--t);
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:none;box-shadow:inset 0 2px 4px rgba(15,27,45,.18);}
.btn-ghost{background:#fff;color:var(--c-primary);border:1px solid var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-50);color:var(--c-primary-700);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px;}
.btn-block{width:100%;}
.link-text{
  display:inline-block;font-size:14px;color:var(--c-primary);
  border-bottom:1px solid currentColor;padding-bottom:1px;
}
.link-text:hover{color:var(--c-primary-700);transform:translateY(2px);}
/* ---------------- 导航 ---------------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:72px;
  background:rgba(255,255,255,.55);
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  backdrop-filter:blur(14px) saturate(150%);
  border-bottom:1px solid rgba(15,27,45,.06);
  box-shadow:var(--sh-2);
  transition:height var(--t),background-color var(--t),box-shadow var(--t);
}
.site-header.is-stuck{
  height:64px;
  background:rgba(255,255,255,.94);
  box-shadow:0 10px 26px rgba(16,42,80,.10);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:100%;}
.logo{display:inline-flex;align-items:center;gap:12px;color:var(--c-text);}
.logo:hover{color:var(--c-text);}
.logo-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:700;box-shadow:var(--sh-1);
}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-top{font-size:14.5px;font-weight:700;letter-spacing:.02em;}
.logo-bottom{font-size:12px;color:var(--c-text-2);letter-spacing:.04em;}
.site-nav{display:flex;align-items:center;gap:30px;}
.site-nav a{
  position:relative;font-size:15px;color:var(--c-text-2);padding:6px 0;
}
.site-nav a::after{
  content:"";position:absolute;left:50%;bottom:-4px;width:0;height:2px;
  background:var(--c-primary);border-radius:2px;transform:translateX(-50%);
  transition:width var(--t);
}
.site-nav a:hover{color:var(--c-primary);}
.site-nav a:hover::after{width:24px;}
.site-nav a.active{color:var(--c-primary);font-weight:600;}
.site-nav a.active::after{width:24px;}
.nav-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-text-2);
  display:flex;align-items:center;justify-content:center;
  transition:background-color var(--t),color var(--t),border-color var(--t);
}
.icon-btn:hover{background:var(--c-primary-50);color:var(--c-primary);border-color:#C9DBFB;}
.nav-search{
  width:0;opacity:0;overflow:hidden;
  transition:width var(--t),opacity var(--t);
}
.nav-search.is-open{width:260px;opacity:1;}
.nav-search input{
  width:100%;height:40px;padding:0 14px;
  border:1px solid var(--c-line);border-radius:10px;
  background:rgba(255,255,255,.94);font-size:14px;
  transition:border-color var(--t),box-shadow var(--t);
}
.nav-search input::placeholder{color:var(--c-text-3);}
.nav-search input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,95,217,.12);}
.hamburger{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--c-line);
  background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;transition:background-color var(--t);}
.hamburger:hover span{background:var(--c-primary);}
/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,27,45,.45);
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);z-index:110;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(420px,92vw);z-index:120;
  background:#fff;box-shadow:var(--sh-3);padding:20px;
  display:flex;flex-direction:column;gap:8px;
  transform:translateX(102%);transition:transform var(--t);
}
.drawer.is-open{transform:none;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--c-line);}
.drawer-links{display:flex;flex-direction:column;margin-top:8px;}
.drawer-links a{
  font-size:18px;color:var(--c-text);line-height:56px;border-bottom:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;
}
.drawer-links a.active{color:var(--c-primary);font-weight:600;}
.drawer-links a::after{content:"›";color:var(--c-text-3);font-size:20px;}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding-top:20px;}
/* ---------------- 横幅 ---------------- */
.page-banner{
  background-color:var(--c-primary-50);
  background-image:
    linear-gradient(rgba(27,95,217,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(27,95,217,.06) 1px,transparent 1px);
  background-size:32px 32px;
  border-bottom:1px solid var(--c-line);
  padding:148px 0 62px;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:20px;flex-wrap:wrap;}
.breadcrumb a{color:var(--c-text-2);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:var(--c-text-3);}
.breadcrumb .current{color:var(--c-text-3);}
.banner-inner{max-width:880px;}
.banner-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:500;color:var(--c-primary);
  background:#fff;border:1px solid #D8E5FB;border-radius:var(--r-badge);
  padding:5px 12px;margin-bottom:18px;
}
.page-banner h1{font-size:36px;font-weight:700;margin-bottom:16px;}
.banner-desc{font-size:16.5px;color:var(--c-text-2);max-width:760px;}
.banner-meta{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:24px;font-size:14px;color:var(--c-text-2);}
.banner-meta li{display:flex;align-items:center;gap:8px;}
.banner-meta li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-primary);flex:0 0 6px;}
/* ---------------- 帮助卡片网格 ---------------- */
.help-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.help-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:26px;
  display:flex;flex-direction:column;gap:12px;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.help-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:#D5E2F7;}
.help-card h3{font-size:19px;font-weight:600;}
.help-card p{font-size:15px;color:var(--c-text-2);line-height:1.78;}
.help-card .card-foot{margin-top:auto;padding-top:6px;}
/* ---------------- 图文速查 ---------------- */
.check-panel{
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-panel);
  box-shadow:var(--sh-2);padding:32px;
}
.check-panel img{width:100%;border-radius:14px;aspect-ratio:16/10;object-fit:cover;box-shadow:var(--sh-1);}
.check-panel h2{font-size:24px;margin-bottom:14px;}
.check-panel .lead{font-size:15.5px;color:var(--c-text-2);margin-bottom:20px;}
.tick-list li{position:relative;padding-left:30px;margin-bottom:14px;font-size:15px;color:var(--c-text-2);line-height:1.78;}
.tick-list li:last-child{margin-bottom:0;}
.tick-list li strong{color:var(--c-text);font-weight:600;}
.tick-list li::before{
  content:"✓";position:absolute;left:0;top:1px;
  width:20px;height:20px;border-radius:50%;
  background:var(--c-primary-50);color:var(--c-primary);
  font-size:12px;display:flex;align-items:center;justify-content:center;
}
/* ---------------- FAQ ---------------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-radius:12px;
  box-shadow:var(--sh-1);margin-bottom:16px;overflow:hidden;
  transition:box-shadow var(--t),border-color var(--t);
}
.faq-item:hover{box-shadow:var(--sh-2);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:17px;font-weight:600;color:var(--c-text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--c-primary);}
.faq-arrow{flex:0 0 20px;width:20px;height:20px;color:var(--c-text-3);transition:transform var(--t),color var(--t);}
.faq-item[open] .faq-arrow{transform:rotate(180deg);color:var(--c-primary);}
.faq-item[open] summary{color:var(--c-primary);}
.faq-body{
  padding:0 24px 22px;font-size:15px;color:var(--c-text-2);line-height:1.8;
  border-top:1px solid var(--c-line);padding-top:18px;margin:0 24px 0;
}
.faq-body{margin:0 24px 0;padding:0 0 22px;}
/* ---------------- 胶囊互链 ---------------- */
.pill-links{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-badge);
  padding:11px 22px;font-size:14.5px;color:var(--c-text-2);
  transition:color var(--t),border-color var(--t),background-color var(--t),transform var(--t);
}
.pill:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-primary-50);transform:translateY(-2px);}
.pill.is-current{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-primary-50);font-weight:600;}
/* ---------------- CTA 面板 ---------------- */
.cta-panel{
  background:linear-gradient(135deg,rgba(27,95,217,.06),rgba(255,255,255,0) 62%),var(--c-primary-50);
  border:1px solid var(--c-line);border-radius:var(--r-panel);
  padding:40px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-2);
}
.cta-panel h2{font-size:26px;margin-bottom:10px;}
.cta-panel p{font-size:15.5px;color:var(--c-text-2);max-width:560px;}
.cta-actions{display:flex;flex-direction:column;align-items:flex-end;gap:12px;flex:0 0 auto;}
/* ---------------- 页脚 ---------------- */
.site-footer{background:#fff;border-top:1px solid var(--c-line);padding:64px 0 0;margin-top:12px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:40px;}
.footer-brand p{font-size:14px;color:var(--c-text-2);margin-top:16px;line-height:1.8;max-width:320px;}
.footer-qr{
  margin-top:18px;display:inline-flex;align-items:center;gap:10px;
  border:1px dashed #C9DBFB;border-radius:12px;padding:12px 16px;
  font-size:12.5px;color:var(--c-text-3);line-height:1.6;background:var(--c-primary-50);
}
.footer-qr::before{
  content:"";width:38px;height:38px;border-radius:8px;flex:0 0 38px;
  background:
    linear-gradient(90deg,var(--c-primary) 6px,transparent 6px) 0 0/12px 12px no-repeat,
    linear-gradient(90deg,transparent 6px,var(--c-primary) 6px) 12px 0/12px 12px no-repeat,
    linear-gradient(0deg,var(--c-primary) 6px,transparent 6px) 0 12px/12px 12px no-repeat,
    #fff;
  box-shadow:inset 0 0 0 1px var(--c-line);
}
.footer-col h4{font-size:14.5px;font-weight:600;margin-bottom:16px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--c-text-2);}
.footer-col a:hover{color:var(--c-primary);text-decoration:underline;}
.footer-bottom{
  margin-top:52px;border-top:1px solid var(--c-line);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}
.footer-bottom a{color:var(--c-text-2);}
.footer-bottom a:hover{color:var(--c-primary);text-decoration:underline;}
/* ---------------- 响应式 ---------------- */
@media (max-width:1279px){
  .container{max-width:96%;}
}
@media (max-width:1023px){
  .site-nav{display:none;}
  .hamburger{display:flex;}
  .nav-search.is-open{width:200px;}
  .cta-panel{flex-direction:column;align-items:flex-start;}
  .cta-actions{align-items:flex-start;width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:72px 0;}
}
@media (max-width:860px){
  .check-panel{grid-template-columns:1fr;gap:28px;padding:24px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .section{padding:52px 0;}
  .page-banner{padding:128px 0 48px;}
  .page-banner h1{font-size:27px;}
  .sec-title{font-size:22px;}
  .help-grid{grid-template-columns:1fr;gap:16px;}
  .help-card{padding:20px;}
  .cta-panel{padding:26px;}
  .cta-panel h2{font-size:22px;}
  .nav-actions .btn-sm{display:none;}
  .nav-search{display:none;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .faq-item summary{font-size:16px;padding:18px 20px;}
  .faq-body{margin:0 20px 0;padding-bottom:18px;}
}
@media (max-width:520px){
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .page-banner h1{font-size:24px;}
  .banner-desc{font-size:15px;}
  .banner-meta{gap:8px 18px;font-size:13px;}
  .logo-mark{width:36px;height:36px;flex-basis:36px;font-size:17px;}
  .btn{height:44px;padding:0 18px;font-size:14.5px;}
  .logo-top{font-size:13.5px;}
  .logo-bottom{font-size:11.5px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}

/* roulang page: category3 */
:root{
  --c-primary:#1B5FD9;
  --c-primary-700:#14459E;
  --c-primary-50:#EEF4FF;
  --c-accent:#FF6B35;
  --c-ok:#12A594;
  --c-warn:#E8A317;
  --c-danger:#D9453D;
  --c-bg:#F7F9FC;
  --c-surface:#FFFFFF;
  --c-line:#E4EAF2;
  --c-text:#0F1B2D;
  --c-text-2:#5A6B80;
  --c-text-3:#8A98AB;
  --sh-1:0 1px 2px rgba(16,42,80,.05);
  --sh-2:0 6px 20px rgba(16,42,80,.07);
  --sh-3:0 16px 40px rgba(16,42,80,.10);
  --r-card:14px;
  --r-btn:10px;
  --r-panel:18px;
  --t:180ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input{font:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:600;letter-spacing:.01em}
p{margin:0 0 1.05em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:500;letter-spacing:.06em;
  color:var(--c-primary);background:var(--c-primary-50);border-radius:999px;
  padding:4px 10px;margin-bottom:14px;
}
.section-head{max-width:780px;margin-bottom:40px}
.section-head h2{font-size:28px}
.section-head .section-sub{margin-top:12px;color:var(--c-text-2);font-size:16px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;font-size:15px;font-weight:600;border-radius:var(--r-btn);
  transition:background var(--t),color var(--t),box-shadow var(--t),transform var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-700);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(9,26,54,.24)}
.btn-primary:disabled{background:#C7D2E0;color:#fff;opacity:.6;cursor:not-allowed;transform:none;box-shadow:none}
.btn-ghost{background:#fff;color:var(--c-primary);border:1px solid var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-50)}
.btn-text{color:var(--c-primary);font-weight:600;padding:4px 0;border-bottom:1px solid var(--c-primary)}
.btn-text:hover{color:var(--c-primary-700);border-color:var(--c-primary-700);transform:translateY(2px)}
.btn-sm{padding:9px 16px;font-size:14px}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;height:72px;
  background:rgba(255,255,255,.55);
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  backdrop-filter:blur(14px) saturate(150%);
  border-bottom:1px solid rgba(15,27,45,.06);
  box-shadow:var(--sh-2);
  transition:height var(--t),background var(--t),box-shadow var(--t);
}
.site-header.is-stuck{height:64px;background:rgba(255,255,255,.94);box-shadow:0 8px 24px rgba(16,42,80,.10)}
.header-inner{position:relative;height:100%;display:flex;align-items:center;gap:20px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:38px;height:38px;border-radius:11px;background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:700;
  box-shadow:var(--sh-1);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-top{font-size:15px;font-weight:700;color:var(--c-primary)}
.logo-bottom{font-size:11.5px;font-weight:500;color:var(--c-text-2);letter-spacing:.04em}
.site-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.site-nav a{
  position:relative;padding:8px 14px;border-radius:8px;font-size:15px;color:var(--c-text-2);
  transition:color var(--t),background var(--t);
}
.site-nav a:hover{color:var(--c-primary);background:var(--c-primary-50)}
.site-nav a.active{color:var(--c-primary);font-weight:600}
.site-nav a.active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:2px;
  width:24px;height:2px;border-radius:2px;background:var(--c-primary);
}
.header-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--c-line);background:rgba(255,255,255,.9);
  display:flex;align-items:center;justify-content:center;color:var(--c-text-2);
  transition:color var(--t),border-color var(--t),background var(--t);
}
.icon-btn:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-primary-50)}
.menu-toggle{display:none}
.search-pop{
  position:absolute;top:calc(100% + 10px);right:24px;z-index:90;
  display:flex;gap:10px;padding:14px;background:rgba(255,255,255,.96);
  border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-3);
}
.search-pop[hidden]{display:none}
.search-pop input{
  width:260px;height:44px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:#fff;color:var(--c-text);font-size:14.5px;transition:border-color var(--t),box-shadow var(--t);
}
.search-pop input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,95,217,.12)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,27,45,.45);z-index:95;opacity:0;pointer-events:none;
  transition:opacity var(--t);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(360px,88vw);z-index:100;background:#fff;
  transform:translateX(100%);transition:transform var(--t);display:flex;flex-direction:column;
  box-shadow:var(--sh-3);
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--c-line)}
.drawer-nav{padding:8px 0;overflow-y:auto}
.drawer-nav a{
  display:block;padding:0 20px;line-height:56px;font-size:18px;color:var(--c-text);
  border-bottom:1px solid var(--c-line);
}
.drawer-nav a.active{color:var(--c-primary);font-weight:600}
.drawer-foot{padding:20px;border-top:1px solid var(--c-line);margin-top:auto;display:flex;flex-direction:column;gap:12px}
.drawer-foot input{height:44px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-btn);background:#fff}

/* ============ 顶部横幅 ============ */
.page-banner{
  position:relative;padding:134px 0 56px;
  background-color:var(--c-primary-50);
  background-image:
    linear-gradient(rgba(27,95,217,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(27,95,217,.055) 1px,transparent 1px);
  background-size:32px 32px,32px 32px;
  border-bottom:1px solid var(--c-line);
  overflow:hidden;
}
.page-banner::after{
  content:"";position:absolute;right:-60px;top:-40px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(27,95,217,.10),rgba(27,95,217,0) 68%);
  pointer-events:none;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-2);margin-bottom:18px;flex-wrap:wrap}
.breadcrumb a{color:var(--c-text-2);transition:color var(--t)}
.breadcrumb a:hover{color:var(--c-primary);text-decoration:underline}
.breadcrumb .sep{color:var(--c-text-3)}
.breadcrumb .current{color:var(--c-text-3)}
.page-banner h1{font-size:36px;font-weight:700;max-width:880px}
.banner-desc{margin-top:16px;max-width:720px;color:var(--c-text-2);font-size:16px;line-height:1.8}
.banner-meta{margin-top:24px;display:flex;flex-wrap:wrap;gap:10px}
.badge{
  display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:500;
  padding:4px 10px;border-radius:999px;background:var(--c-primary-50);color:var(--c-primary);
  border:1px solid rgba(27,95,217,.14);
}
.badge .dot{width:8px;height:8px;border-radius:50%;background:var(--c-primary)}
.badge-ok{background:rgba(18,165,148,.10);color:#0C7C6F;border-color:rgba(18,165,148,.22)}
.badge-ok .dot{background:var(--c-ok)}
.badge-warn{background:rgba(232,163,23,.12);color:#9A6C05;border-color:rgba(232,163,23,.26)}
.badge-warn .dot{background:var(--c-warn)}
.badge-danger{background:rgba(217,69,61,.10);color:#A9322C;border-color:rgba(217,69,61,.22)}
.badge-danger .dot{background:var(--c-danger)}

/* ============ 图文拆分布局 ============ */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center}
.split-media img{width:100%;border-radius:var(--r-panel);box-shadow:var(--sh-2);object-fit:cover;aspect-ratio:16/11}
.split-body h2{font-size:28px;margin-bottom:14px}
.split-body > p{color:var(--c-text-2)}
.check-list{margin-top:22px;display:grid;gap:14px}
.check-list li{position:relative;padding-left:30px;color:var(--c-text);font-size:15.5px;line-height:1.75}
.check-list li::before{
  content:"";position:absolute;left:0;top:6px;width:18px;height:18px;border-radius:50%;
  background:var(--c-primary-50);border:1px solid rgba(27,95,217,.25);
}
.check-list li::after{
  content:"";position:absolute;left:6px;top:11px;width:6px;height:10px;
  border-right:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);
  transform:rotate(40deg);
}
.check-list li strong{font-weight:600}

/* ============ 时间线编号列表 ============ */
.timeline-list{position:relative;padding-left:0}
.timeline-list::before{
  content:"";position:absolute;left:27px;top:14px;bottom:26px;width:1px;background:var(--c-line);
}
.timeline-item{
  position:relative;display:grid;grid-template-columns:56px 1fr;gap:22px;
  padding-bottom:32px;
}
.timeline-item:last-child{padding-bottom:0}
.tl-num{
  font-size:32px;font-weight:700;line-height:1;color:rgba(27,95,217,.30);
  font-variant-numeric:tabular-nums;background:var(--c-bg);padding:6px 0 6px;position:relative;z-index:1;
}
.tl-body{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--sh-1);transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.tl-body:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:#D6E2F7}
.tl-body h3{font-size:19px;margin-bottom:8px}
.tl-body p{color:var(--c-text-2);font-size:15.5px;line-height:1.8}

/* ============ 风险信号列表 ============ */
.signal-list{display:grid;gap:14px}
.signal-item{
  display:grid;grid-template-columns:150px 1fr;gap:22px;align-items:start;
  background:var(--c-surface);border:1px solid var(--c-line);border-left:3px solid var(--c-primary);
  border-radius:var(--r-card);padding:20px 24px;box-shadow:var(--sh-1);
  transition:box-shadow var(--t),transform var(--t);
}
.signal-item:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.signal-item.is-warn{border-left-color:var(--c-warn)}
.signal-item.is-ok{border-left-color:var(--c-ok)}
.signal-item.is-danger{border-left-color:var(--c-danger)}
.signal-item h3{font-size:17.5px;margin-bottom:6px}
.signal-item p{color:var(--c-text-2);font-size:15px;line-height:1.8}
.signal-tag{padding-top:2px}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:12px;
  box-shadow:var(--sh-1);margin-bottom:14px;overflow:hidden;
  transition:box-shadow var(--t);
}
.faq-item[open]{box-shadow:var(--sh-2)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:18px 22px;font-size:17px;font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-right:4px;
  border-right:2px solid var(--c-text-3);border-bottom:2px solid var(--c-text-3);
  transform:rotate(45deg);transition:transform var(--t);
}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-item summary:hover{color:var(--c-primary)}
.faq-answer{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--c-text-2)}

/* ============ 胶囊互链 ============ */
.pill-links{display:flex;flex-wrap:wrap;gap:12px}
.pill-link{
  display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:999px;
  background:var(--c-surface);border:1px solid var(--c-line);color:var(--c-text);
  font-size:15px;font-weight:500;box-shadow:var(--sh-1);
  transition:color var(--t),border-color var(--t),background var(--t),transform var(--t),box-shadow var(--t);
}
.pill-link::after{content:"→";color:var(--c-text-3);transition:color var(--t),transform var(--t)}
.pill-link:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-primary-50);transform:translateY(-2px);box-shadow:var(--sh-2)}
.pill-link:hover::after{color:var(--c-primary);transform:translateX(3px)}

/* ============ 底部 CTA ============ */
.cta-panel{
  background-color:var(--c-primary-50);
  background-image:linear-gradient(135deg,rgba(27,95,217,.07),rgba(27,95,217,0) 62%);
  border:1px solid #DCE7FB;border-radius:var(--r-panel);
  padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:36px;
  box-shadow:var(--sh-1);
}
.cta-panel h2{font-size:26px;margin-bottom:10px}
.cta-panel p{color:var(--c-text-2);font-size:15.5px;max-width:560px}
.cta-actions{display:flex;align-items:center;gap:20px;flex:0 0 auto}

/* ============ 页脚 ============ */
.site-footer{background:#fff;border-top:1px solid var(--c-line);padding-top:64px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand .logo{margin-bottom:18px}
.footer-brand p{color:var(--c-text-2);font-size:14px;line-height:1.8;max-width:320px}
.footer-qr{
  margin-top:20px;width:112px;height:112px;border-radius:12px;border:1px dashed #C9D6E8;
  background:var(--c-primary-50);color:var(--c-text-2);font-size:12.5px;line-height:1.5;
  display:flex;align-items:center;justify-content:center;text-align:center;padding:10px;
}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--c-text)}
.footer-col ul{display:grid;gap:10px}
.footer-col li{font-size:14px;color:var(--c-text-2)}
.footer-col a{font-size:14px;color:var(--c-text-2);transition:color var(--t)}
.footer-col a:hover{color:var(--c-primary);text-decoration:underline}
.footer-bottom{
  border-top:1px solid var(--c-line);padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;font-size:13px;color:var(--c-text-3);
}
.footer-bottom a{color:var(--c-text-3);text-decoration:underline;transition:color var(--t)}
.footer-bottom a:hover{color:var(--c-primary)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{max-width:96%}
}
@media (max-width:1023px){
  .site-nav{display:none}
  .menu-toggle{display:flex}
  .header-actions .btn{display:none}
  .search-pop{right:20px}
  .search-pop input{width:200px}
  .section{padding:72px 0}
  .split{grid-template-columns:1fr;gap:32px}
  .split-media{order:-1}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:52px 0}
  .page-banner{padding:112px 0 44px}
  .page-banner h1{font-size:26px}
  .banner-desc{font-size:15px}
  .section-head h2,.split-body h2{font-size:22px}
  .tl-body{padding:18px 18px}
  .tl-body h3{font-size:17.5px}
  .timeline-item{grid-template-columns:40px 1fr;gap:14px;padding-bottom:24px}
  .timeline-list::before{left:19px}
  .tl-num{font-size:24px}
  .signal-item{grid-template-columns:1fr;gap:12px;padding:18px}
  .cta-panel{flex-direction:column;align-items:flex-start;padding:28px 22px}
  .cta-actions{width:100%;flex-direction:column;align-items:stretch;gap:12px}
  .cta-actions .btn,.cta-actions .btn-text{width:100%;text-align:center;justify-content:center}
  .search-pop{left:20px;right:20px;flex-direction:column}
  .search-pop input{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
}
@media (max-width:479px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .page-banner h1{font-size:23px}
  .logo-bottom{font-size:11px}
  .faq-item summary{font-size:16px;padding:16px 18px}
  .faq-answer{padding:0 18px 18px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}