/* roulang page: index */
:root{
    --c-brand:#15529B;
    --c-brand-strong:#0E3E77;
    --c-brand-soft:#E8F0FA;
    --c-accent:#D9822B;
    --c-accent-soft:#FDF1E3;
    --c-ink:#16202E;
    --c-ink-2:#55637A;
    --c-line:#E3E9F2;
    --c-bg:#F6F8FC;
    --c-card:#FFFFFF;
    --c-footer:#0D1F33;
    --r-sm:8px; --r-md:12px; --r-lg:16px; --r-xl:20px;
    --sh-1:0 1px 2px rgba(16,38,68,.06);
    --sh-2:0 8px 24px rgba(16,38,68,.08);
    --sh-3:0 18px 48px rgba(16,38,68,.12);
    --sec:96px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body.site-body{
    margin:0;
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
    font-size:16px;
    line-height:1.8;
    color:var(--c-ink);
    background:var(--c-bg);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border:0}
  a{color:inherit;text-decoration:none}
  button{font-family:inherit}
  input,button,select,textarea{font:inherit;color:inherit}
  .container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
  .section{padding:var(--sec) 0}
  .section-tight{padding:calc(var(--sec) * .7) 0}
  .h1{font-size:48px;line-height:1.2;font-weight:700;letter-spacing:-.01em;margin:0}
  .h2{font-size:34px;line-height:1.3;font-weight:700;margin:0}
  .h3{font-size:22px;line-height:1.4;font-weight:600;margin:0}
  .lead{font-size:17px;line-height:1.85;color:var(--c-ink-2);margin:0}
  .muted{color:var(--c-ink-2)}
  .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--c-brand);text-transform:uppercase}
  .eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);display:block}

  /* 顶部导航 */
  .site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow .2s ease}
  .site-header.is-scrolled{box-shadow:var(--sh-2)}
  .nav-inner{display:flex;align-items:center;gap:18px;min-height:76px}
  .logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .logo-mark{width:34px;height:34px;border-radius:9px;background:var(--c-brand);color:#fff;display:flex;align-items:center;justify-content:center;flex:0 0 auto;box-shadow:var(--sh-1)}
  .logo-text{display:flex;flex-direction:column;line-height:1.2}
  .logo-text strong{font-size:17px;font-weight:600;letter-spacing:.01em}
  .logo-text em{font-style:normal;font-size:11px;letter-spacing:.06em;color:var(--c-ink-2);margin-top:3px}
  .nav-search{flex:1 1 220px;min-width:0;max-width:460px;position:relative;display:flex;align-items:center}
  .nav-search svg{position:absolute;left:16px;width:17px;height:17px;color:var(--c-ink-2);pointer-events:none}
  .nav-search input{width:100%;height:44px;border:1px solid var(--c-line);border-radius:999px;background:#fff;padding:0 18px 0 42px;font-size:14px;color:var(--c-ink);outline:none;transition:border-color .18s ease,box-shadow .18s ease}
  .nav-search input::placeholder{color:#98A5B8}
  .nav-search input:focus{border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(21,82,155,.16),var(--sh-2)}
  .nav-links{display:flex;align-items:center;gap:18px;flex:0 0 auto}
  .nav-link{position:relative;font-size:14px;color:var(--c-ink-2);padding:6px 0;transition:color .18s ease;white-space:nowrap}
  .nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--c-brand);transform:scaleX(0);transform-origin:left;transition:transform .18s ease}
  .nav-link:hover{color:var(--c-brand)}
  .nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
  .nav-link.active{color:var(--c-brand);font-weight:600}
  .nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;margin-left:auto}
  .nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:10px;background:#fff;align-items:center;justify-content:center;cursor:pointer;transition:border-color .18s ease,background .18s ease}
  .nav-toggle:hover{border-color:var(--c-brand);background:var(--c-brand-soft)}
  .nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);position:relative}
  .nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink)}
  .nav-toggle span::before{top:-6px}
  .nav-toggle span::after{top:6px}
  .mobile-drawer{display:none;border-top:1px solid var(--c-line);background:#fff;padding:16px 0 22px}
  .mobile-drawer.open{display:block}
  .drawer-search{position:relative;display:flex;align-items:center;margin-bottom:14px}
  .drawer-search input{width:100%;height:46px;border:1px solid var(--c-line);border-radius:999px;padding:0 18px;font-size:14px;outline:none;background:var(--c-bg)}
  .drawer-search input:focus{border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(21,82,155,.16);background:#fff}
  .drawer-links{display:flex;flex-direction:column}
  .drawer-links a{display:flex;align-items:center;justify-content:space-between;min-height:46px;padding:0 4px;font-size:15px;color:var(--c-ink);border-bottom:1px solid var(--c-line)}
  .drawer-links a.active{color:var(--c-brand);font-weight:600}
  .drawer-cta{margin-top:16px}

  /* 按钮 */
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:10px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease}
  .btn:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px}
  .btn-primary{background:var(--c-brand);color:#fff}
  .btn-primary:hover{background:var(--c-brand-strong);transform:translateY(-1px);box-shadow:var(--sh-2)}
  .btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
  .btn-accent{background:var(--c-accent);color:#fff}
  .btn-accent:hover{background:#C4731F;transform:translateY(-1px);box-shadow:var(--sh-2)}
  .btn-accent:active{transform:translateY(0)}
  .btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-brand)}
  .btn-ghost:hover{border-color:var(--c-brand);box-shadow:var(--sh-1);transform:translateY(-1px)}
  .btn-sm{height:42px;padding:0 18px;font-size:14px;border-radius:9px}
  .btn-block{width:100%}
  .link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--c-brand)}
  .link-arrow svg{width:16px;height:16px;transition:transform .18s ease}
  .link-arrow:hover svg{transform:translateX(2px)}
  .link-arrow:hover{color:var(--c-brand-strong)}

  /* 徽章 */
  .badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:6px;font-size:12px;font-weight:600;background:var(--c-brand-soft);color:var(--c-brand)}
  .badge-accent{background:var(--c-accent-soft);color:#A9631C}

  /* Hero */
  .hero{position:relative;overflow:hidden;padding:56px 0 72px;background-color:#EFF4FA}
  .hero::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;opacity:.16;filter:saturate(.7)}
  .hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(21,82,155,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(21,82,155,.045) 1px,transparent 1px),radial-gradient(680px 340px at 84% 6%,rgba(217,130,43,.10),transparent 68%);background-size:24px 24px,24px 24px,auto;pointer-events:none}
  .hero-inner{position:relative;z-index:2}
  .hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
  .hero h1{color:var(--c-ink)}
  .hero-sub{font-size:18px;line-height:1.7;color:var(--c-ink-2);margin:20px 0 0;max-width:34em}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
  .trust-row{display:flex;flex-wrap:wrap;gap:22px;margin-top:32px}
  .trust-item{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--c-ink-2)}
  .trust-item svg{width:16px;height:16px;color:var(--c-brand);flex:0 0 auto}

  /* 登录卡 */
  .login-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-3);padding:28px}
  .login-head{margin-bottom:18px}
  .login-title{font-size:21px;font-weight:700;margin:12px 0 0;line-height:1.4}
  .login-tip{font-size:12px;color:var(--c-ink-2);margin:6px 0 0}
  .field{display:block;margin-bottom:14px}
  .field-label{display:block;font-size:13px;color:var(--c-ink-2);margin-bottom:6px}
  .field input{width:100%;height:48px;border:1px solid #D8E0EB;border-radius:10px;padding:0 14px;font-size:15px;background:#fff;outline:none;transition:border-color .18s ease,box-shadow .18s ease}
  .field input::placeholder{color:#A6B2C4}
  .field input:focus{border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(21,82,155,.16)}
  .login-form .btn{margin-top:6px}
  .login-links{display:flex;flex-wrap:wrap;gap:16px;margin-top:16px;font-size:13px}
  .login-links a{color:var(--c-brand);transition:color .18s ease}
  .login-links a:hover{color:var(--c-brand-strong);text-decoration:underline}
  .login-note{font-size:12px;line-height:1.7;color:#8794A8;margin:14px 0 0;padding-top:14px;border-top:1px solid var(--c-line)}

  /* 痛点 */
  .pain-grid{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
  .pain-intro p{margin:18px 0 0}
  .pain-list{list-style:none;margin:0;padding:0}
  .pain-item{display:flex;align-items:flex-start;gap:18px;padding:24px 16px;margin:0 -16px;border-top:1px solid var(--c-line);border-radius:10px;transition:background .2s ease}
  .pain-item:last-child{border-bottom:1px solid var(--c-line)}
  .pain-item:hover{background:var(--c-brand-soft)}
  .pain-num{font-size:15px;font-weight:700;color:var(--c-brand);letter-spacing:.06em;min-width:34px;line-height:1.9}
  .pain-title{font-size:17px;font-weight:600;margin:0}
  .pain-desc{font-size:14.5px;line-height:1.75;color:var(--c-ink-2);margin:6px 0 0}
  .pain-item svg{width:20px;height:20px;color:#9FB0C6;margin-left:auto;flex:0 0 auto;margin-top:3px;transition:color .2s ease,transform .2s ease}
  .pain-item:hover svg{color:var(--c-brand);transform:translateX(3px)}

  /* 交错图文 */
  .flow-block{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
  .flow-block + .flow-block{margin-top:72px}
  .flow-media{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);border:1px solid var(--c-line)}
  .flow-media img{width:100%;height:340px;object-fit:cover}
  .flow-text h3{margin-top:14px}
  .flow-text p{margin:16px 0 0}
  .point-list{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:12px}
  .point-list li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--c-ink-2)}
  .point-list svg{width:20px;height:20px;color:var(--c-brand);flex:0 0 auto;margin-top:2px}
  .flow-block.reverse .flow-media{order:2}

  /* 步骤条 */
  .stepbar{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:56px;padding-top:8px}
  .step{position:relative;padding-top:32px}
  .step::before{content:"";position:absolute;top:6px;left:14px;right:0;height:2px;background:var(--c-line)}
  .step::after{content:"";position:absolute;top:0;left:0;width:14px;height:14px;border-radius:50%;background:var(--c-brand);box-shadow:0 0 0 4px var(--c-brand-soft)}
  .step:last-child::before{display:none}
  .step-num{font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--c-accent)}
  .step-title{font-size:17px;font-weight:600;margin:6px 0 0}
  .step-desc{font-size:14px;color:var(--c-ink-2);margin:6px 0 0}

  /* 成果指标 */
  .stats-band{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
  .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
  .stat{padding:8px 28px;border-left:1px solid var(--c-line)}
  .stat:first-child{border-left:0;padding-left:0}
  .stat-num{font-size:40px;font-weight:700;line-height:1.1;color:var(--c-brand);letter-spacing:-.02em}
  .stat-num small{font-size:14px;font-weight:600;color:var(--c-ink-2);margin-left:6px;letter-spacing:0}
  .stat-desc{font-size:14px;color:var(--c-ink-2);margin-top:8px}

  /* 证言 */
  .voices{display:grid;grid-template-columns:1fr 1fr;gap:28px}
  .voice{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:32px;transition:box-shadow .2s ease,transform .2s ease}
  .voice:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
  .voice:nth-child(2){margin-top:24px}
  .voice-quote{font-size:16px;line-height:1.85;color:var(--c-ink);margin:0}
  .voice-mark{font-size:34px;line-height:1;color:var(--c-accent);font-weight:700;display:block;margin-bottom:10px}
  .voice-person{display:flex;align-items:center;gap:12px;margin-top:24px;padding-top:20px;border-top:1px solid var(--c-line)}
  .voice-avatar{width:44px;height:44px;border-radius:50%;background:var(--c-brand-soft);color:var(--c-brand);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex:0 0 auto}
  .voice-name{font-size:14.5px;font-weight:600;margin:0}
  .voice-role{font-size:13px;color:var(--c-ink-2);margin:2px 0 0}

  /* 最新信息 */
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
  .section-head p{margin:12px 0 0;max-width:44em}
  .news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
  .news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow .2s ease,transform .2s ease}
  .news-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
  .news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-brand-soft)}
  .news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
  .news-card:hover .news-thumb img{transform:scale(1.02)}
  .news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
  .news-title{font-size:18px;font-weight:600;line-height:1.5;margin:12px 0 0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s ease}
  .news-card:hover .news-title{color:var(--c-brand)}
  .news-summary{font-size:14px;line-height:1.75;color:var(--c-ink-2);margin:10px 0 0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .news-foot{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:18px}
  .news-date{font-size:13px;color:#8794A8}
  .news-foot svg{width:16px;height:16px;color:var(--c-brand);margin-left:auto;transition:transform .2s ease}
  .news-card:hover .news-foot svg{transform:translateX(3px)}
  .empty-state{border:1px dashed #C9D5E6;border-radius:var(--r-lg);min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;background:#fff;text-align:center;padding:32px}
  .empty-state svg{width:32px;height:32px;color:#9FB0C6}
  .empty-state p{margin:0;font-size:15px;color:var(--c-ink-2)}

  /* FAQ */
  .faq-wrap{max-width:900px;margin:0 auto}
  .faq-list{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;margin-top:36px}
  .faq-item + .faq-item{border-top:1px solid var(--c-line)}
  .faq-q{width:100%;display:flex;align-items:center;gap:20px;justify-content:space-between;text-align:left;background:transparent;border:0;padding:22px 26px;font-size:16px;font-weight:600;color:var(--c-ink);cursor:pointer;transition:color .18s ease,background .18s ease}
  .faq-q:hover{color:var(--c-brand);background:#FBFCFE}
  .faq-q:focus-visible{outline:2px solid var(--c-brand);outline-offset:-2px}
  .faq-icon{position:relative;width:16px;height:16px;flex:0 0 auto}
  .faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-brand);border-radius:2px;transition:transform .22s ease,opacity .22s ease}
  .faq-icon::before{top:7px;left:0;width:16px;height:2px}
  .faq-icon::after{left:7px;top:0;width:2px;height:16px}
  .faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
  .faq-item.open .faq-a{max-height:340px}
  .faq-a p{margin:0;padding:0 26px 24px;font-size:15px;line-height:1.85;color:var(--c-ink-2)}
  .faq-item.open .faq-q{border-top:1px solid transparent}

  /* CTA */
  .cta-card{background:linear-gradient(120deg,var(--c-brand-strong),var(--c-brand));border-radius:var(--r-xl);padding:56px;display:flex;align-items:center;justify-content:space-between;gap:40px;color:#fff;position:relative;overflow:hidden;box-shadow:var(--sh-2)}
  .cta-card::after{content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;background:rgba(255,255,255,.07)}
  .cta-card h2{color:#fff;position:relative;z-index:1}
  .cta-card p{color:rgba(255,255,255,.82);margin:14px 0 0;max-width:40em;font-size:15px;position:relative;z-index:1}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:1;flex:0 0 auto}
  .cta-actions .btn-ghost{background:transparent;border-color:rgba(255,255,255,.45);color:#fff}
  .cta-actions .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}

  /* 页脚 */
  .site-footer{background:var(--c-footer);color:#A9B6C9;margin-top:var(--sec);border-top:1px solid rgba(255,255,255,.08)}
  .footer-grid{display:grid;grid-template-columns:4fr 2.2fr 2.4fr 3fr;gap:48px;padding:72px 0 48px}
  .footer-brand .logo-text strong{color:#fff}
  .footer-brand .logo-text em{color:#8494AA}
  .footer-brand .logo-mark{background:rgba(255,255,255,.12)}
  .footer-desc{font-size:14px;line-height:1.85;margin:18px 0 0;max-width:24em;color:#A9B6C9}
  .footer-search{position:relative;display:flex;align-items:center;margin-top:20px;max-width:280px}
  .footer-search input{width:100%;height:42px;border-radius:999px;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);color:#fff;padding:0 16px;font-size:13.5px;outline:none;transition:border-color .18s ease,background .18s ease}
  .footer-search input::placeholder{color:#7C8CA3}
  .footer-search input:focus{border-color:rgba(255,255,255,.5);background:rgba(255,255,255,.1)}
  .footer-col h4{font-size:14px;color:#fff;font-weight:600;margin:0 0 18px;letter-spacing:.02em}
  .footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:12px}
  .footer-col a,.footer-col li{font-size:14px;color:#A9B6C9;transition:color .18s ease}
  .footer-col a{position:relative;display:inline-block;padding-left:0;transition:color .18s ease,padding-left .18s ease}
  .footer-col a::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:0;height:12px;background:var(--c-accent);border-radius:2px;transition:width .18s ease}
  .footer-col a:hover{color:#fff;padding-left:12px}
  .footer-col a:hover::before{width:4px}
  .footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:22px 0;text-align:center;font-size:13px;color:#7C8CA3}

  /* 响应式 */
  @media (max-width:1080px){
    .nav-links{display:none}
  }
  @media (max-width:1024px){
    :root{--sec:72px}
    .h1{font-size:40px}
    .h2{font-size:28px}
    .hero-grid{grid-template-columns:1fr;gap:40px}
    .hero-sub{max-width:none}
    .flow-block{gap:36px}
    .flow-media img{height:280px}
    .news-grid{grid-template-columns:repeat(2,1fr)}
    .footer-grid{grid-template-columns:1fr 1fr;gap:36px;padding:56px 0 36px}
    .cta-card{padding:40px;flex-direction:column;align-items:flex-start}
  }
  @media (max-width:860px){
    .nav-search{display:none}
    .nav-actions .btn{display:none}
    .nav-toggle{display:flex}
    .pain-grid{grid-template-columns:1fr;gap:28px}
    .voices{grid-template-columns:1fr}
    .voice:nth-child(2){margin-top:0}
    .stats{grid-template-columns:1fr 1fr}
    .stat{padding:20px 0 20px 24px}
    .stat:nth-child(odd){border-left:0;padding-left:0}
    .stat:nth-child(3),.stat:nth-child(4){border-top:1px solid var(--c-line)}
  }
  @media (max-width:768px){
    :root{--sec:52px}
    .container{padding:0 20px}
    .h1{font-size:30px}
    .h2{font-size:24px}
    .h3{font-size:19px}
    .hero{padding:36px 0 52px}
    .hero-sub{font-size:16px}
    .flow-block,.flow-block.reverse{grid-template-columns:1fr}
    .flow-block.reverse .flow-media{order:0}
    .flow-block + .flow-block{margin-top:44px}
    .stepbar{grid-template-columns:1fr;gap:8px;margin-top:36px}
    .step{padding:0 0 22px 30px}
    .step::before{top:0;bottom:0;left:6px;right:auto;width:2px;height:auto}
    .step:last-child::before{display:none}
    .step::after{top:4px;left:0}
    .news-grid{grid-template-columns:1fr}
    .section-head{flex-direction:column;align-items:flex-start;gap:14px}
    .cta-card{padding:32px 24px;border-radius:var(--r-lg)}
    .footer-grid{grid-template-columns:1fr;gap:32px}
    .faq-q{padding:18px 20px;font-size:15px}
    .faq-a p{padding:0 20px 20px}
  }
  @media (max-width:520px){
    .trust-row{gap:14px}
    .hero-actions .btn{width:100%}
    .stats{grid-template-columns:1fr}
    .stat,.stat:nth-child(odd){border-left:0;padding-left:0;border-top:1px solid var(--c-line);padding-top:20px;padding-bottom:20px}
    .stat:first-child{border-top:0;padding-top:0}
    .login-card{padding:22px}
    .voice{padding:24px}
  }

/* roulang page: category1 */
:root{
    --c-brand:#15529B;
    --c-brand-strong:#0E3E77;
    --c-brand-soft:#E8F0FA;
    --c-accent:#D9822B;
    --c-accent-soft:#FDF1E3;
    --c-ink:#16202E;
    --c-ink-2:#55637A;
    --c-line:#E3E9F2;
    --c-bg:#F6F8FC;
    --c-card:#FFFFFF;
    --c-footer:#0D1F33;
    --sh-1:0 1px 2px rgba(16,38,68,.06);
    --sh-2:0 8px 24px rgba(16,38,68,.08);
    --sh-3:0 18px 48px rgba(16,38,68,.12);
    --r-sm:8px;
    --r-md:12px;
    --r-lg:16px;
    --r-xl:20px;
    --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    font-family:var(--font-cn);
    font-size:16px;
    line-height:1.8;
    color:var(--c-ink);
    background:var(--c-bg);
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
  ul,ol{list-style:none}
  a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease}
  img{max-width:100%;display:block;border-style:none}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
  input{font:inherit}
  ::selection{background:var(--c-brand-soft);color:var(--c-brand-strong)}
  :focus-visible{outline:2px solid var(--c-brand);outline-offset:3px;border-radius:4px}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

  /* ---------- Header ---------- */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:rgba(255,255,255,.96);
    backdrop-filter:saturate(180%) blur(10px);
    border-bottom:1px solid var(--c-line);
    transition:box-shadow .2s ease;
  }
  .site-header.is-scrolled{box-shadow:var(--sh-2)}
  .header-inner{display:flex;align-items:center;gap:22px;height:76px}
  .logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
  .logo-mark{
    width:32px;height:32px;border-radius:9px;flex-shrink:0;
    display:inline-flex;align-items:center;justify-content:center;
    background:linear-gradient(150deg,var(--c-brand) 0%,var(--c-brand-strong) 100%);
    color:#fff;
    box-shadow:0 4px 12px rgba(21,82,155,.24);
  }
  .logo-text{display:flex;flex-direction:column;line-height:1.15}
  .logo-text strong{font-size:17px;font-weight:600;letter-spacing:-.01em;color:var(--c-ink)}
  .logo-text em{font-size:11px;font-style:normal;letter-spacing:.06em;color:var(--c-ink-2);margin-top:3px}
  .header-search{
    position:relative;flex:1;max-width:520px;display:flex;align-items:center;
    height:44px;border:1px solid var(--c-line);border-radius:999px;
    background:#fff;padding:0 18px;transition:border-color .18s ease,box-shadow .18s ease;
  }
  .header-search:focus-within{
    border-color:var(--c-brand);
    box-shadow:0 0 0 3px rgba(21,82,155,.14),var(--sh-2);
  }
  .header-search svg{flex-shrink:0;color:var(--c-ink-2)}
  .header-search input{
    width:100%;border:0;outline:none;background:transparent;
    font-size:14px;padding:0 10px;color:var(--c-ink);
  }
  .header-search input::placeholder{color:#98A5B8}
  .header-right{display:flex;align-items:center;gap:20px;margin-left:auto}
  .nav-links{display:flex;align-items:center;gap:22px}
  .nav-link{
    position:relative;font-size:14.5px;color:var(--c-ink-2);
    padding:6px 0;white-space:nowrap;
  }
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
    background:var(--c-brand);border-radius:2px;transform:scaleX(0);
    transform-origin:left;transition:transform .2s ease;
  }
  .nav-link:hover{color:var(--c-brand)}
  .nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
  .nav-link.active{color:var(--c-brand);font-weight:600}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 24px;border-radius:10px;font-size:15px;font-weight:600;
    transition:background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
    white-space:nowrap;
  }
  .btn-primary{background:var(--c-brand);color:#fff;box-shadow:0 6px 16px rgba(21,82,155,.18)}
  .btn-primary:hover{background:var(--c-brand-strong);transform:translateY(-1px);box-shadow:var(--sh-2)}
  .btn-primary:active{transform:translateY(0)}
  .btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 6px 16px rgba(217,130,43,.22)}
  .btn-accent:hover{background:#c1741f;transform:translateY(-1px);box-shadow:var(--sh-2)}
  .btn-ghost{background:#fff;color:var(--c-brand);border:1px solid var(--c-line)}
  .btn-ghost:hover{border-color:var(--c-brand);box-shadow:var(--sh-1)}
  .header-cta{height:42px;padding:0 20px;font-size:14px;border-radius:999px}
  .nav-toggle{
    display:none;width:44px;height:44px;border-radius:10px;
    align-items:center;justify-content:center;border:1px solid var(--c-line);background:#fff;color:var(--c-brand);
  }
  .mobile-drawer{
    display:none;border-top:1px solid var(--c-line);background:#fff;
    padding:16px 24px 22px;
  }
  .mobile-drawer.open{display:block}
  .mobile-drawer .drawer-search{
    display:flex;align-items:center;height:44px;border:1px solid var(--c-line);
    border-radius:999px;padding:0 16px;margin-bottom:14px;
  }
  .mobile-drawer .drawer-search input{border:0;outline:none;width:100%;font-size:14px;background:transparent;padding-left:10px}
  .mobile-drawer .drawer-links{display:flex;flex-direction:column}
  .mobile-drawer .drawer-links a{
    display:flex;align-items:center;justify-content:space-between;
    padding:13px 4px;font-size:15px;color:var(--c-ink-2);border-bottom:1px solid var(--c-line);
  }
  .mobile-drawer .drawer-links a.active{color:var(--c-brand);font-weight:600}
  .mobile-drawer .btn{width:100%;margin-top:16px}

  /* ---------- Breadcrumb ---------- */
  .crumb-bar{padding:24px 0 0}
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-ink-2)}
  .breadcrumb a:hover{color:var(--c-brand)}
  .breadcrumb .sep{color:#B7C2D2}
  .breadcrumb .current{color:var(--c-ink);font-weight:500}

  /* ---------- Page hero ---------- */
  .page-hero{
    position:relative;overflow:hidden;
    border-bottom:1px solid var(--c-line);
    background-color:#fff;
    background-image:
      linear-gradient(rgba(21,82,155,.04) 1px,transparent 1px),
      linear-gradient(90deg,rgba(21,82,155,.04) 1px,transparent 1px);
    background-size:24px 24px,24px 24px;
  }
  .page-hero::before{
    content:"";position:absolute;right:-160px;top:-180px;width:520px;height:520px;
    background:radial-gradient(circle,rgba(21,82,155,.06) 0%,rgba(21,82,155,0) 68%);
    pointer-events:none;
  }
  .page-hero-inner{position:relative;padding:56px 0 40px;max-width:900px}
  .hero-eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    background:var(--c-brand-soft);color:var(--c-brand-strong);
    border-radius:6px;font-size:12.5px;letter-spacing:.02em;
    padding:5px 12px;margin-bottom:18px;font-weight:600;
  }
  .page-hero h1{
    font-size:44px;line-height:1.22;font-weight:700;letter-spacing:-.01em;
    color:var(--c-ink);
  }
  .page-hero h1 .hl{color:var(--c-brand)}
  .page-hero .lede{
    margin-top:20px;font-size:17px;line-height:1.85;color:var(--c-ink-2);max-width:780px;
  }
  .trust-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
  .trust-badge{
    display:inline-flex;align-items:center;gap:7px;
    background:#fff;border:1px solid var(--c-line);border-radius:999px;
    padding:7px 14px;font-size:13px;color:var(--c-ink-2);box-shadow:var(--sh-1);
  }
  .trust-badge svg{color:var(--c-brand)}

  /* ---------- Anchor nav ---------- */
  .anchor-strip{
    position:relative;border-top:1px solid var(--c-line);background:#fff;
  }
  .anchor-inner{
    display:flex;gap:10px;overflow-x:auto;padding:14px 0;
    scrollbar-width:thin;
  }
  .anchor-inner::-webkit-scrollbar{height:4px}
  .anchor-inner::-webkit-scrollbar-thumb{background:#CBD6E5;border-radius:4px}
  .anchor-link{
    flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
    padding:9px 16px;border-radius:999px;border:1px solid var(--c-line);
    font-size:14px;color:var(--c-ink-2);background:#fff;white-space:nowrap;
  }
  .anchor-link:hover{border-color:var(--c-brand);color:var(--c-brand);background:var(--c-brand-soft)}
  .anchor-link .dot{width:6px;height:6px;border-radius:50%;background:var(--c-brand);opacity:.45}
  .anchor-link:hover .dot{opacity:1}

  /* ---------- Sections ---------- */
  .section{padding:96px 0}
  .section-tight{padding:72px 0}
  .section-head{max-width:760px;margin-bottom:40px}
  .section-kicker{
    display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;
    color:var(--c-brand);text-transform:uppercase;margin-bottom:12px;
  }
  .section-head h2{font-size:34px;line-height:1.3;font-weight:700;letter-spacing:-.01em}
  .section-head p{margin-top:14px;font-size:16px;color:var(--c-ink-2)}

  .step-group{
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-xl);
    padding:36px;box-shadow:var(--sh-1);margin-bottom:28px;
    transition:box-shadow .2s ease,border-color .2s ease;
    scroll-margin-top:100px;
  }
  .step-group:hover{box-shadow:var(--sh-2)}
  .group-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:14px;margin-bottom:8px}
  .group-head h2{font-size:26px;line-height:1.35;font-weight:700}
  .group-tag{
    display:inline-flex;align-items:center;gap:6px;
    background:var(--c-accent-soft);color:#A45E15;
    border-radius:6px;font-size:12px;font-weight:600;padding:4px 10px;
  }
  .group-desc{font-size:15.5px;color:var(--c-ink-2);max-width:820px;margin-bottom:26px}
  .step-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
  .step-card{
    display:flex;gap:16px;align-items:flex-start;
    border:1px solid var(--c-line);border-radius:var(--r-lg);
    padding:20px 22px;background:#fff;
    transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease,background-color .2s ease;
  }
  .step-card:hover{border-color:#CBDAEE;box-shadow:var(--sh-2);transform:translateY(-2px);background:#FCFDFF}
  .step-num{
    flex:0 0 auto;width:52px;height:52px;border-radius:var(--r-md);
    display:flex;align-items:center;justify-content:center;
    background:var(--c-brand-soft);color:var(--c-brand);
    font-size:22px;font-weight:700;letter-spacing:-.02em;
  }
  .step-body h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:6px}
  .step-body p{font-size:14.5px;line-height:1.8;color:var(--c-ink-2)}

  /* ---------- Feature / image block ---------- */
  .feature-block{
    display:grid;grid-template-columns:5fr 6fr;gap:48px;align-items:center;
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-xl);
    padding:36px;box-shadow:var(--sh-1);
  }
  .feature-media{
    border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-line);
    box-shadow:var(--sh-2);position:relative;
  }
  .feature-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
  .feature-content h2{font-size:28px;line-height:1.35;font-weight:700;margin-bottom:14px}
  .feature-content p{font-size:15.5px;color:var(--c-ink-2);line-height:1.85}
  .check-list{margin-top:22px;display:flex;flex-direction:column;gap:12px}
  .check-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--c-ink)}
  .check-list svg{flex:0 0 auto;margin-top:4px;color:var(--c-brand)}

  /* ---------- Notice / tip ---------- */
  .tip-box{
    display:flex;gap:16px;align-items:flex-start;
    background:var(--c-brand-soft);border:1px solid #CFE0F2;border-radius:var(--r-lg);
    padding:22px 24px;margin-top:28px;
  }
  .tip-box svg{flex:0 0 auto;color:var(--c-brand);margin-top:3px}
  .tip-box p{font-size:14.5px;line-height:1.85;color:var(--c-brand-strong)}

  /* ---------- FAQ ---------- */
  .faq-wrap{max-width:900px;margin:0 auto}
  .faq-item{
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
    box-shadow:var(--sh-1);margin-bottom:14px;overflow:hidden;
    transition:box-shadow .2s ease,border-color .2s ease;
  }
  .faq-item:hover{box-shadow:var(--sh-2);border-color:#D3DFEE}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:20px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--c-ink);
  }
  .faq-icon{
    flex:0 0 auto;width:28px;height:28px;border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    background:var(--c-brand-soft);color:var(--c-brand);
    transition:transform .22s ease,background-color .2s ease,color .2s ease;
  }
  .faq-item.open .faq-icon{transform:rotate(45deg);background:var(--c-brand);color:#fff}
  .faq-a{
    max-height:0;overflow:hidden;
    transition:max-height .28s ease;
  }
  .faq-item.open .faq-a{max-height:420px}
  .faq-a-inner{
    padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--c-ink-2);
    border-top:1px solid var(--c-line);padding-top:18px;margin-top:0;
  }

  /* ---------- CTA ---------- */
  .cta-band{
    background:linear-gradient(135deg,var(--c-brand-strong) 0%,var(--c-brand) 100%);
    border-radius:var(--r-xl);
    padding:48px 56px;color:#fff;
    display:flex;align-items:center;justify-content:space-between;gap:36px;
    box-shadow:var(--sh-3);position:relative;overflow:hidden;
  }
  .cta-band::after{
    content:"";position:absolute;right:-90px;bottom:-120px;width:340px;height:340px;
    border-radius:50%;background:rgba(255,255,255,.07);pointer-events:none;
  }
  .cta-band h2{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:-.01em}
  .cta-band p{margin-top:12px;font-size:15.5px;color:rgba(255,255,255,.82);max-width:620px;line-height:1.85}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:1}
  .cta-band .btn-ghost{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.42);color:#fff}
  .cta-band .btn-ghost:hover{background:rgba(255,255,255,.18);border-color:#fff}

  /* ---------- Footer ---------- */
  .site-footer{background:var(--c-footer);color:#A9B6C9;margin-top:96px;border-top:1px solid rgba(255,255,255,.08)}
  .footer-grid{
    display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px;
    padding:60px 0 40px;
  }
  .footer-brand .logo{margin-bottom:18px}
  .footer-brand .logo-mark{background:linear-gradient(150deg,#2A6BB5,#15529B)}
  .footer-brand .logo-text strong{color:#fff}
  .footer-brand .logo-text em{color:#8FA1B8}
  .footer-desc{font-size:14px;line-height:1.8;color:#9CABC0;max-width:340px}
  .footer-search{
    display:flex;align-items:center;height:42px;margin-top:20px;max-width:320px;
    border:1px solid rgba(255,255,255,.16);border-radius:999px;background:rgba(255,255,255,.05);
    padding:0 16px;transition:border-color .18s ease,background-color .18s ease;
  }
  .footer-search:focus-within{border-color:rgba(255,255,255,.5);background:rgba(255,255,255,.09)}
  .footer-search input{
    width:100%;border:0;outline:none;background:transparent;color:#fff;font-size:13.5px;
  }
  .footer-search input::placeholder{color:#7E8FA6}
  .footer-col h4{
    font-size:15px;color:#fff;font-weight:600;margin-bottom:18px;letter-spacing:.01em;
  }
  .footer-col ul li{margin-bottom:12px;font-size:14px;line-height:1.7}
  .footer-col ul li a{
    display:inline-block;position:relative;padding-left:0;color:#A9B6C9;
  }
  .footer-col ul li a:hover{color:#fff;padding-left:12px}
  .footer-col ul li a::before{
    content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
    width:0;height:12px;background:#3B7EC4;border-radius:1px;
    transition:width .18s ease;
  }
  .footer-col ul li a:hover::before{width:6px}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.08);
    padding:22px 0;text-align:center;font-size:13px;color:#8296AD;
  }

  /* ---------- Responsive ---------- */
  @media (max-width:1024px){
    .header-inner{gap:16px;height:72px}
    .nav-links{gap:16px}
    .nav-link{font-size:14px}
    .header-search{max-width:360px}
    .page-hero h1{font-size:38px}
    .section{padding:78px 0}
    .feature-block{grid-template-columns:1fr;gap:30px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  }
  @media (max-width:900px){
    .nav-links{display:none}
    .nav-toggle{display:inline-flex}
    .header-search{display:none}
    .header-inner{height:64px}
    .header-cta{display:none}
  }
  @media (max-width:768px){
    .container{padding:0 20px}
    .page-hero-inner{padding:40px 0 32px}
    .page-hero h1{font-size:30px;line-height:1.3}
    .page-hero .lede{font-size:15.5px;margin-top:16px}
    .section{padding:56px 0}
    .section-head h2{font-size:24px}
    .section-head{margin-bottom:28px}
    .step-grid{grid-template-columns:1fr}
    .step-group{padding:24px;border-radius:var(--r-lg)}
    .group-head h2{font-size:21px}
    .feature-block{padding:24px}
    .feature-content h2{font-size:22px}
    .cta-band{flex-direction:column;align-items:flex-start;padding:32px 26px;gap:24px}
    .cta-band h2{font-size:23px}
    .faq-q{font-size:15px;padding:17px 18px}
    .faq-a-inner{padding:16px 18px 20px}
    .footer-grid{grid-template-columns:1fr;gap:30px;padding:44px 0 30px}
    .site-footer{margin-top:56px}
    .breadcrumb{font-size:13px}
  }
  @media (max-width:520px){
    .logo-text strong{font-size:15px}
    .logo-text em{font-size:10px}
    .step-num{width:46px;height:46px;font-size:19px}
    .btn{width:100%}
    .cta-actions{width:100%}
    .trust-row{gap:8px}
    .trust-badge{font-size:12px;padding:6px 11px}
  }

/* roulang page: article */
:root{
    --c-brand:#15529B;
    --c-brand-strong:#0E3E77;
    --c-brand-soft:#E8F0FA;
    --c-accent:#D9822B;
    --c-accent-soft:#FDF1E3;
    --c-ink:#16202E;
    --c-ink-2:#55637A;
    --c-line:#E3E9F2;
    --c-bg:#F6F8FC;
    --c-card:#FFFFFF;
    --c-footer:#0D1F33;
    --sh-1:0 1px 2px rgba(16,38,68,.06);
    --sh-2:0 8px 24px rgba(16,38,68,.08);
    --sh-3:0 18px 48px rgba(16,38,68,.12);
    --r-sm:8px;
    --r-md:12px;
    --r-lg:16px;
    --r-xl:20px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,'Segoe UI',sans-serif;
    font-size:16px;
    line-height:1.8;
    color:var(--c-ink);
    background:var(--c-bg);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;cursor:pointer;border:0;background:none;}
  input,select,textarea{font-family:inherit;font-size:inherit;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  :focus-visible{outline:2px solid var(--c-brand);outline-offset:3px;}

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding:0 24px;
  }

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:#fff;
    border-bottom:1px solid var(--c-line);
    transition:box-shadow .2s ease;
  }
  .site-header.is-scrolled{box-shadow:var(--sh-2);}
  .header-inner{
    display:flex;
    align-items:center;
    gap:22px;
    height:76px;
  }
  .logo{
    display:flex;
    align-items:center;
    gap:10px;
    flex:none;
  }
  .logo-mark{
    width:34px;
    height:34px;
    border-radius:10px;
    background:linear-gradient(150deg,var(--c-brand) 0%,var(--c-brand-strong) 100%);
    color:#fff;
    display:grid;
    place-items:center;
    box-shadow:var(--sh-1);
    flex:none;
  }
  .logo-text{display:flex;flex-direction:column;line-height:1.2;}
  .logo-text strong{font-size:17px;font-weight:600;color:var(--c-ink);letter-spacing:.01em;}
  .logo-text em{font-size:11px;font-style:normal;letter-spacing:.06em;color:var(--c-ink-2);margin-top:2px;}

  .nav-search{
    position:relative;
    flex:1 1 auto;
    max-width:520px;
  }
  .nav-search .search-icon{
    position:absolute;
    left:16px;
    top:50%;
    transform:translateY(-50%);
    color:var(--c-ink-2);
    pointer-events:none;
  }
  .nav-search input{
    width:100%;
    height:44px;
    border-radius:999px;
    border:1px solid var(--c-line);
    background:#fff;
    padding:0 18px 0 44px;
    font-size:14px;
    color:var(--c-ink);
    transition:border-color .18s ease,box-shadow .18s ease;
  }
  .nav-search input::placeholder{color:#93A0B4;}
  .nav-search input:focus{
    outline:none;
    border-color:var(--c-brand);
    box-shadow:0 0 0 3px rgba(21,82,155,.15),var(--sh-2);
  }

  .nav-links{
    display:flex;
    align-items:center;
    gap:24px;
    margin-left:auto;
  }
  .nav-link{
    position:relative;
    font-size:15px;
    color:var(--c-ink-2);
    padding:6px 0;
    border-bottom:2px solid transparent;
    transition:color .18s ease,border-color .18s ease;
    white-space:nowrap;
  }
  .nav-link:hover{color:var(--c-brand);}
  .nav-link.active{color:var(--c-brand);border-bottom-color:var(--c-brand);font-weight:500;}

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:48px;
    padding:0 24px;
    border-radius:10px;
    font-size:15px;
    font-weight:500;
    transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
    white-space:nowrap;
  }
  .btn-primary{background:var(--c-brand);color:#fff;box-shadow:var(--sh-1);}
  .btn-primary:hover{background:var(--c-brand-strong);transform:translateY(-1px);box-shadow:var(--sh-2);}
  .btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
  .btn-accent{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1);}
  .btn-accent:hover{background:#C2731F;transform:translateY(-1px);box-shadow:var(--sh-2);}
  .btn-ghost{background:#fff;color:var(--c-brand);border:1px solid var(--c-line);}
  .btn-ghost:hover{border-color:var(--c-brand);box-shadow:var(--sh-1);transform:translateY(-1px);}
  .btn-sm{height:42px;padding:0 18px;font-size:14px;}

  .header-cta{flex:none;}

  .nav-toggle{
    display:none;
    width:44px;
    height:44px;
    border-radius:10px;
    border:1px solid var(--c-line);
    align-items:center;
    justify-content:center;
    color:var(--c-ink);
    margin-left:auto;
    flex:none;
  }
  .nav-toggle:hover{border-color:var(--c-brand);color:var(--c-brand);}

  /* ---------- 页面头部 ---------- */
  .page-head{
    position:relative;
    overflow:hidden;
    padding:34px 0 46px;
    background-color:var(--c-bg);
    background-image:
      linear-gradient(rgba(21,82,155,.04) 1px,transparent 1px),
      linear-gradient(90deg,rgba(21,82,155,.04) 1px,transparent 1px);
    background-size:24px 24px;
    border-bottom:1px solid var(--c-line);
  }
  .page-head::after{
    content:"";
    position:absolute;
    right:-130px;
    top:-160px;
    width:440px;
    height:440px;
    border-radius:50%;
    background:radial-gradient(circle,rgba(21,82,155,.07),transparent 70%);
    pointer-events:none;
  }
  .page-head .container{position:relative;z-index:1;}

  .breadcrumb{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:8px;
    font-size:14px;
    color:var(--c-ink-2);
    margin-bottom:22px;
  }
  .breadcrumb a{color:var(--c-ink-2);transition:color .18s ease;}
  .breadcrumb a:hover{color:var(--c-brand);}
  .breadcrumb .sep{color:#B7C2D2;}
  .breadcrumb .current{color:var(--c-ink);max-width:640px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:4px 10px;
    border-radius:6px;
    font-size:12px;
    font-weight:500;
    background:var(--c-brand-soft);
    color:var(--c-brand-strong);
    line-height:1.6;
  }
  .badge-accent{background:var(--c-accent-soft);color:#A85F16;}

  .article-title{
    font-size:clamp(26px,4vw,42px);
    line-height:1.3;
    font-weight:700;
    letter-spacing:-.01em;
    color:var(--c-ink);
    margin:16px 0 20px;
    max-width:900px;
  }
  .meta-row{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:14px;
    font-size:14px;
    color:var(--c-ink-2);
  }
  .meta-row .meta-dot{
    width:4px;height:4px;border-radius:50%;background:#C4CEDD;
  }
  .meta-row .meta-source{color:var(--c-brand-strong);font-weight:500;}

  /* ---------- 封面 ---------- */
  .cover-wrap{
    margin-top:-22px;
    position:relative;
    z-index:2;
  }
  .cover-figure{
    border-radius:var(--r-lg);
    overflow:hidden;
    border:1px solid var(--c-line);
    box-shadow:var(--sh-3);
    background:#fff;
  }
  .cover-figure img{
    width:100%;
    height:clamp(180px,30vw,340px);
    object-fit:cover;
  }

  /* ---------- 正文布局 ---------- */
  .main-section{padding:44px 0 0;}
  .article-layout{
    display:grid;
    grid-template-columns:minmax(0,780px) 220px;
    gap:48px;
    justify-content:center;
    align-items:start;
  }
  .article-main{min-width:0;}

  .article-body{
    font-size:17px;
    line-height:1.9;
    color:#22303F;
    overflow-wrap:break-word;
    word-break:break-word;
  }
  .article-body p{margin:0 0 22px;}
  .article-body > p:first-child{font-size:17px;}
  .article-body h2{
    position:relative;
    font-size:28px;
    line-height:1.35;
    font-weight:700;
    color:var(--c-ink);
    margin:40px 0 18px;
    padding-left:16px;
  }
  .article-body h2::before{
    content:"";
    position:absolute;
    left:0;
    top:8px;
    bottom:8px;
    width:4px;
    border-radius:2px;
    background:var(--c-brand);
  }
  .article-body h3{
    font-size:20px;
    line-height:1.5;
    font-weight:600;
    color:var(--c-ink);
    margin:32px 0 14px;
  }
  .article-body h4{
    font-size:18px;
    font-weight:600;
    color:var(--c-ink);
    margin:24px 0 12px;
  }
  .article-body strong{color:var(--c-ink);font-weight:600;}
  .article-body a{color:var(--c-brand);text-decoration:underline;text-underline-offset:3px;}
  .article-body a:hover{color:var(--c-brand-strong);}
  .article-body blockquote{
    margin:26px 0;
    padding:16px 22px;
    border-left:3px solid var(--c-brand);
    background:var(--c-brand-soft);
    border-radius:0 var(--r-md) var(--r-md) 0;
    color:var(--c-ink-2);
    font-size:16px;
  }
  .article-body blockquote p:last-child{margin-bottom:0;}
  .article-body ul,
  .article-body ol{margin:0 0 22px;padding-left:2px;}
  .article-body ul li{
    position:relative;
    padding-left:20px;
    margin-bottom:10px;
    list-style:none;
  }
  .article-body ul li::before{
    content:"";
    position:absolute;
    left:2px;
    top:11px;
    width:7px;
    height:7px;
    border-radius:50%;
    background:var(--c-brand);
  }
  .article-body ol{padding-left:22px;}
  .article-body ol li{
    list-style:decimal;
    margin-bottom:10px;
    padding-left:4px;
  }
  .article-body img{
    max-width:100%;
    height:auto;
    border-radius:var(--r-md);
    margin:26px auto;
    border:1px solid var(--c-line);
  }
  .article-body figure{margin:26px 0;}
  .article-body figcaption{
    font-size:13px;
    color:var(--c-ink-2);
    text-align:center;
    margin-top:10px;
  }
  .article-body table{
    width:100%;
    border-collapse:collapse;
    font-size:15px;
    margin:26px 0;
    border:1px solid var(--c-line);
    border-radius:var(--r-md);
    overflow:hidden;
  }
  .article-body th{
    background:var(--c-brand-soft);
    color:var(--c-brand-strong);
    text-align:left;
    padding:12px 16px;
    font-weight:600;
    border-bottom:1px solid var(--c-line);
  }
  .article-body td{
    padding:12px 16px;
    border-top:1px solid var(--c-line);
    vertical-align:top;
  }
  .article-body tbody tr:nth-child(even){background:#FAFBFE;}
  .article-body tbody tr:hover{background:#F3F7FD;}
  .article-body hr{
    border:0;
    border-top:1px solid var(--c-line);
    margin:36px 0;
  }

  /* ---------- 侧栏目录 ---------- */
  .toc-panel{
    position:sticky;
    top:100px;
    border:1px solid var(--c-line);
    border-radius:var(--r-lg);
    background:#fff;
    padding:20px 18px;
    box-shadow:var(--sh-1);
  }
  .toc-panel h4{
    font-size:13px;
    letter-spacing:.08em;
    color:var(--c-ink-2);
    margin-bottom:12px;
    font-weight:600;
  }
  .toc-list li{margin-bottom:2px;}
  .toc-list a{
    display:block;
    font-size:14px;
    line-height:1.6;
    color:var(--c-ink-2);
    padding:7px 10px;
    border-left:2px solid transparent;
    border-radius:0 6px 6px 0;
    transition:color .18s ease,background-color .18s ease,border-color .18s ease;
  }
  .toc-list a:hover{color:var(--c-brand);background:var(--c-bg);}
  .toc-list a.is-active{
    color:var(--c-brand-strong);
    border-left-color:var(--c-brand);
    background:var(--c-brand-soft);
    font-weight:500;
  }

  /* ---------- 空态 ---------- */
  .empty-state{
    border:1px dashed #C9D5E5;
    border-radius:var(--r-lg);
    background:#fff;
    padding:56px 28px;
    text-align:center;
  }
  .empty-state h2{font-size:22px;font-weight:600;margin-bottom:10px;}
  .empty-state p{color:var(--c-ink-2);font-size:15px;margin-bottom:24px;}

  /* ---------- 文末操作条 ---------- */
  .post-actions{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    margin-top:44px;
    padding:20px 24px;
    background:#fff;
    border:1px solid var(--c-line);
    border-radius:var(--r-lg);
    box-shadow:var(--sh-1);
  }
  .share-group{
    display:flex;
    align-items:center;
    gap:10px;
    flex-wrap:wrap;
  }
  .share-label{font-size:13px;color:var(--c-ink-2);}
  .share-btn{
    display:inline-flex;
    align-items:center;
    gap:6px;
    height:40px;
    padding:0 16px;
    border-radius:999px;
    border:1px solid var(--c-line);
    background:#fff;
    font-size:13px;
    color:var(--c-ink-2);
    transition:border-color .18s ease,color .18s ease,box-shadow .18s ease;
  }
  .share-btn:hover{border-color:var(--c-brand);color:var(--c-brand);box-shadow:var(--sh-1);}

  /* ---------- 板块通用 ---------- */
  .section{padding:56px 0 0;}
  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:20px;
    margin-bottom:26px;
  }
  .section-head h2{
    font-size:clamp(22px,2.6vw,30px);
    font-weight:700;
    letter-spacing:-.01em;
    color:var(--c-ink);
  }
  .section-head p{
    font-size:14px;
    color:var(--c-ink-2);
    margin-top:6px;
  }
  .link-more{
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-size:14px;
    color:var(--c-brand);
    font-weight:500;
    white-space:nowrap;
  }
  .link-more svg{transition:transform .18s ease;}
  .link-more:hover svg{transform:translateX(3px);}

  /* ---------- 相关推荐卡片 ---------- */
  .card-grid{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:24px;
  }
  .post-card{
    display:flex;
    flex-direction:column;
    background:#fff;
    border:1px solid var(--c-line);
    border-radius:var(--r-lg);
    overflow:hidden;
    box-shadow:var(--sh-1);
    transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
  }
  .post-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:#D6E1EF;}
  .post-card figure{
    margin:0;
    aspect-ratio:16/9;
    overflow:hidden;
    background:var(--c-brand-soft);
  }
  .post-card figure img{
    width:100%;
    height:100%;
    object-fit:cover;
    transition:transform .35s ease;
  }
  .post-card:hover figure img{transform:scale(1.04);}
  .post-card-body{
    padding:18px 20px 20px;
    display:flex;
    flex-direction:column;
    flex:1;
  }
  .post-card-body h3{
    font-size:18px;
    line-height:1.5;
    font-weight:600;
    color:var(--c-ink);
    margin-bottom:8px;
    transition:color .18s ease;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
  }
  .post-card:hover .post-card-body h3{color:var(--c-brand);}
  .post-card-body p{
    font-size:14px;
    line-height:1.75;
    color:var(--c-ink-2);
    margin-bottom:16px;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
  }
  .post-card-foot{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    margin-top:auto;
    padding-top:14px;
    border-top:1px solid var(--c-line);
  }
  .post-card-foot .time{font-size:13px;color:#8592A6;}

  /* ---------- FAQ ---------- */
  .faq-list{
    max-width:900px;
    margin:0 auto;
    display:flex;
    flex-direction:column;
    gap:14px;
  }
  .faq-item{
    background:#fff;
    border:1px solid var(--c-line);
    border-radius:var(--r-lg);
    box-shadow:var(--sh-1);
    overflow:hidden;
    transition:box-shadow .18s ease,border-color .18s ease;
  }
  .faq-item:hover{box-shadow:var(--sh-2);border-color:#D6E1EF;}
  .faq-item summary{
    list-style:none;
    cursor:pointer;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:20px 24px;
    font-size:16px;
    font-weight:600;
    color:var(--c-ink);
    transition:color .18s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{color:var(--c-brand);}
  .faq-icon{
    position:relative;
    flex:none;
    width:22px;
    height:22px;
    border-radius:50%;
    background:var(--c-brand-soft);
    color:var(--c-brand);
  }
  .faq-icon::before,
  .faq-icon::after{
    content:"";
    position:absolute;
    left:50%;
    top:50%;
    background:currentColor;
    border-radius:2px;
    transform:translate(-50%,-50%);
    transition:transform .2s ease,opacity .2s ease;
  }
  .faq-icon::before{width:10px;height:2px;}
  .faq-icon::after{width:2px;height:10px;}
  .faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
  .faq-answer{
    padding:0 24px 22px;
    font-size:15px;
    line-height:1.8;
    color:var(--c-ink-2);
    border-top:1px solid var(--c-line);
    padding-top:18px;
  }
  .faq-item[open] summary{border-bottom:1px solid var(--c-line);}

  /* ---------- CTA ---------- */
  .cta-block{
    margin-top:64px;
    background:linear-gradient(135deg,var(--c-brand-strong) 0%,var(--c-brand) 100%);
    border-radius:var(--r-xl);
    padding:48px 56px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:36px;
    color:#fff;
    box-shadow:var(--sh-3);
    position:relative;
    overflow:hidden;
  }
  .cta-block::after{
    content:"";
    position:absolute;
    right:-90px;
    bottom:-120px;
    width:320px;
    height:320px;
    border-radius:50%;
    background:rgba(255,255,255,.06);
    pointer-events:none;
  }
  .cta-block h2{
    font-size:clamp(22px,2.6vw,30px);
    font-weight:700;
    line-height:1.4;
    margin-bottom:10px;
  }
  .cta-block p{
    font-size:15px;
    line-height:1.8;
    color:rgba(255,255,255,.82);
    max-width:620px;
  }
  .cta-actions{
    display:flex;
    gap:14px;
    flex-wrap:wrap;
    flex:none;
    position:relative;
    z-index:1;
  }
  .cta-block .btn-accent{box-shadow:0 10px 24px rgba(0,0,0,.18);}
  .cta-block .btn-ghost{
    background:rgba(255,255,255,.08);
    color:#fff;
    border-color:rgba(255,255,255,.35);
  }
  .cta-block .btn-ghost:hover{background:rgba(255,255,255,.16);border-color:#fff;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--c-footer);
    color:#A9B6C9;
    margin-top:80px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.7fr 1fr 1fr 1.15fr;
    gap:44px;
    padding:64px 0 42px;
  }
  .site-footer .logo-mark{background:rgba(255,255,255,.12);box-shadow:none;}
  .site-footer .logo-text strong{color:#fff;}
  .site-footer .logo-text em{color:#8FA0B8;}
  .footer-desc{
    font-size:14px;
    line-height:1.85;
    color:#A9B6C9;
    margin:18px 0 20px;
    max-width:360px;
  }
  .footer-search input{
    width:100%;
    max-width:320px;
    height:42px;
    border-radius:999px;
    border:1px solid rgba(255,255,255,.16);
    background:rgba(255,255,255,.06);
    color:#fff;
    padding:0 18px;
    font-size:14px;
    transition:border-color .18s ease,background-color .18s ease;
  }
  .footer-search input::placeholder{color:#7C8CA5;}
  .footer-search input:focus{
    outline:none;
    border-color:rgba(255,255,255,.5);
    background:rgba(255,255,255,.1);
  }
  .footer-col h4{
    font-size:15px;
    font-weight:600;
    color:#fff;
    margin:4px 0 18px;
  }
  .footer-col ul li{
    font-size:14px;
    line-height:1.9;
    margin-bottom:10px;
    color:#A9B6C9;
  }
  .footer-col ul li a{
    display:inline-block;
    padding-left:0;
    border-left:2px solid transparent;
    transition:color .18s ease,border-color .18s ease,padding-left .18s ease;
  }
  .footer-col ul li a:hover{
    color:#fff;
    border-left-color:var(--c-accent);
    padding-left:8px;
  }
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.08);
    padding:20px 0 26px;
    text-align:center;
    font-size:13px;
    color:#8FA0B8;
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1024px){
    .article-layout{grid-template-columns:minmax(0,1fr);}
    .toc-panel{display:none;}
    .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .footer-grid{grid-template-columns:1fr 1fr;gap:36px;padding:52px 0 36px;}
    .cta-block{padding:40px 36px;flex-direction:column;align-items:flex-start;gap:26px;}
  }

  @media (max-width:860px){
    .header-inner{height:64px;gap:12px;flex-wrap:wrap;}
    .nav-toggle{display:inline-flex;}
    .header-cta{display:none;}
    .nav-search{display:none;}
    .nav-links{display:none;}
    .site-header.open .header-inner{padding-bottom:14px;height:auto;}
    .site-header.open .nav-search{
      display:block;
      order:10;
      flex:1 0 100%;
      max-width:none;
      margin-top:12px;
    }
    .site-header.open .nav-links{
      display:flex;
      order:11;
      flex:1 0 100%;
      flex-direction:column;
      align-items:flex-start;
      gap:2px;
      margin:10px 0 0;
      padding-top:10px;
      border-top:1px solid var(--c-line);
    }
    .site-header.open .nav-link{
      width:100%;
      padding:12px 2px;
      border-bottom:1px solid var(--c-line);
      border-left:0;
    }
    .site-header.open .nav-link.active{color:var(--c-brand);border-bottom-color:var(--c-line);}
    .site-header.open .nav-link:last-child{border-bottom:0;}
  }

  @media (max-width:768px){
    .container{padding:0 20px;}
    .page-head{padding:24px 0 36px;}
    .breadcrumb{font-size:13px;margin-bottom:16px;}
    .breadcrumb .current{max-width:200px;}
    .article-title{font-size:26px;}
    .cover-wrap{margin-top:-14px;}
    .cover-figure img{height:200px;}
    .article-layout{gap:0;}
    .article-body{font-size:16px;line-height:1.85;}
    .article-body h2{font-size:22px;margin:32px 0 14px;}
    .article-body h3{font-size:19px;}
    .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
    .card-grid{grid-template-columns:minmax(0,1fr);}
    .section{padding:44px 0 0;}
    .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
    .post-actions{flex-direction:column;align-items:stretch;}
    .post-actions .btn{width:100%;}
    .cta-block{padding:32px 22px;margin-top:48px;}
    .cta-actions{width:100%;}
    .cta-actions .btn{flex:1 1 100%;}
    .footer-grid{grid-template-columns:1fr;gap:30px;}
    .footer-search input{max-width:none;}
    .site-footer{margin-top:56px;}
  }

  @media (max-width:520px){
    .logo-text strong{font-size:15px;}
    .logo-text em{font-size:10px;}
    .article-title{font-size:23px;line-height:1.35;}
    .meta-row{font-size:13px;gap:10px;}
    .faq-item summary{padding:16px 18px;font-size:15px;}
    .faq-answer{padding:16px 18px 20px;}
    .post-card-body{padding:16px 16px 18px;}
  }

/* roulang page: category2 */
:root{
  --c-brand:#15529B;
  --c-brand-strong:#0E3E77;
  --c-brand-soft:#E8F0FA;
  --c-accent:#D9822B;
  --c-accent-soft:#FDF1E3;
  --c-ink:#16202E;
  --c-ink-2:#55637A;
  --c-line:#E3E9F2;
  --c-bg:#F6F8FC;
  --c-card:#FFFFFF;
  --c-footer:#0D1F33;
  --sh-1:0 1px 2px rgba(16,38,68,.06);
  --sh-2:0 8px 24px rgba(16,38,68,.08);
  --sh-3:0 18px 48px rgba(16,38,68,.12);
  --r-sm:8px;--r-md:12px;--r-lg:16px;--r-xl:20px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:150px}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.8;color:var(--c-ink);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:10px;font-size:15px;font-weight:600;
  border:1px solid transparent;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.btn-brand{background:var(--c-brand);color:#fff}
.btn-brand:hover{background:var(--c-brand-strong);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-brand:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover{background:#C2741F;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-accent:active{transform:translateY(0)}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-brand)}
.btn-ghost:hover{border-color:var(--c-brand);box-shadow:var(--sh-1);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:9px}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--c-brand);font-weight:600;font-size:15px}
.btn-link svg{transition:transform .2s ease}
.btn-link:hover svg{transform:translateX(3px)}

/* ============ 徽章 / 标签 ============ */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:6px;font-size:12px;font-weight:600;letter-spacing:.02em}
.badge-brand{background:var(--c-brand-soft);color:var(--c-brand-strong)}
.badge-accent{background:var(--c-accent-soft);color:#9A5A16}
.tag{display:inline-flex;align-items:center;padding:6px 12px;border-radius:999px;background:#fff;border:1px solid var(--c-line);color:var(--c-ink-2);font-size:13px}

/* ============ 头部 ============ */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow .2s ease}
.site-header.is-stuck{box-shadow:var(--sh-2)}
.header-main{display:flex;align-items:center;gap:24px;height:76px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:32px;height:32px;border-radius:9px;background:var(--c-brand);color:#fff;display:grid;place-items:center;flex-shrink:0}
.logo-text{display:flex;flex-direction:column;line-height:1.25}
.logo-text strong{font-size:17px;font-weight:600;letter-spacing:.01em;color:var(--c-ink)}
.logo-text em{font-size:11px;letter-spacing:.06em;font-style:normal;color:var(--c-ink-2)}
.nav-search{
  display:flex;align-items:center;gap:10px;flex:1;max-width:520px;height:44px;
  padding:0 8px 0 18px;border:1px solid var(--c-line);border-radius:999px;background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(21,82,155,.16);background:#fff}
.nav-search .search-ico{color:#8C9BB2;flex-shrink:0}
.nav-search input{flex:1;min-width:0;border:0;outline:0;background:transparent;font-size:14px;color:var(--c-ink)}
.nav-search input::placeholder{color:#93A1B8}
.search-submit{
  height:32px;padding:0 16px;border-radius:999px;background:var(--c-brand);color:#fff;
  font-size:13px;font-weight:600;transition:background-color .2s ease;
}
.search-submit:hover{background:var(--c-brand-strong)}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--c-line);align-items:center;justify-content:center;flex-direction:column;gap:4px}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-toggle span{transition:transform .2s ease,opacity .2s ease}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:24px;border-top:1px solid var(--c-line);min-height:52px}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:52px;
  font-size:15px;color:var(--c-ink-2);transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--c-brand);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--c-brand)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--c-brand);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.nav-note{font-size:13px;color:#8C9BB2;white-space:nowrap}
.mobile-panel{display:none;border-top:1px solid var(--c-line);padding:16px 0 20px;background:#fff}
.mobile-panel.open{display:block}
.mobile-panel .nav-search{max-width:none;margin-bottom:14px}
.mobile-nav{display:grid;gap:2px}
.mobile-nav a{display:flex;align-items:center;min-height:44px;padding:0 4px;font-size:15px;color:var(--c-ink-2);border-radius:8px}
.mobile-nav a.active{color:var(--c-brand);font-weight:600;background:var(--c-brand-soft);padding-left:12px}

/* ============ 面包屑 ============ */
.breadcrumb-bar{padding:20px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-ink-2)}
.breadcrumb a{color:var(--c-ink-2);transition:color .2s ease}
.breadcrumb a:hover{color:var(--c-brand)}
.breadcrumb .sep{color:#B8C3D3}
.breadcrumb [aria-current]{color:var(--c-ink);font-weight:500}

/* ============ 页头 ============ */
.page-hero{position:relative;overflow:hidden;padding:40px 0 56px}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(180deg,rgba(246,248,252,.95),rgba(246,248,252,.98)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(rgba(21,82,155,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(21,82,155,.045) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-mask-image:radial-gradient(circle at 78% 12%,rgba(0,0,0,.9),transparent 72%);
  mask-image:radial-gradient(circle at 78% 12%,rgba(0,0,0,.9),transparent 72%);
}
.page-hero-inner{position:relative;z-index:1;max-width:840px}
.page-hero h1{
  margin:18px 0 16px;font-size:44px;line-height:1.24;font-weight:700;letter-spacing:-.01em;color:var(--c-ink);
}
.page-hero-lead{font-size:17px;line-height:1.9;color:var(--c-ink-2);max-width:760px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}

/* ============ 文档区 ============ */
.section{padding:56px 0 0}
.doc-layout{display:grid;grid-template-columns:264px minmax(0,1fr);gap:56px;align-items:start}
.doc-aside{position:sticky;top:150px;display:grid;gap:18px}
.aside-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:22px 20px}
.aside-card h3{font-size:14px;font-weight:600;color:var(--c-ink);letter-spacing:.04em;margin-bottom:14px}
.toc{display:grid;gap:2px}
.toc a{
  display:block;padding:9px 12px;border-radius:8px;font-size:14px;color:var(--c-ink-2);
  border-left:3px solid transparent;transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.toc a:hover{background:var(--c-brand-soft);color:var(--c-brand-strong)}
.toc a.active{background:var(--c-brand-soft);color:var(--c-brand-strong);border-left-color:var(--c-brand);font-weight:600}
.aside-help{background:linear-gradient(160deg,#0E3E77,#15529B);border-radius:var(--r-lg);padding:22px 20px;color:#fff;box-shadow:var(--sh-2)}
.aside-help h3{font-size:15px;font-weight:600;margin-bottom:8px;color:#fff}
.aside-help p{font-size:13.5px;line-height:1.8;color:#C8D8EC;margin-bottom:16px}
.aside-help a{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:#fff;border-bottom:1px solid rgba(255,255,255,.5);padding-bottom:2px}
.aside-help a:hover{border-color:#fff}

.doc-main{min-width:0}
.doc-block{margin-bottom:52px}
.doc-block:last-child{margin-bottom:0}
.doc-main h2{
  position:relative;padding-left:16px;font-size:28px;line-height:1.36;font-weight:700;color:var(--c-ink);
  margin:0 0 18px;
}
.doc-main h2::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:3px;background:var(--c-brand)}
.doc-main h3{font-size:19px;line-height:1.5;font-weight:600;color:var(--c-ink);margin:28px 0 12px}
.doc-main p{font-size:16.5px;line-height:1.9;color:var(--c-ink-2);margin-bottom:18px}
.doc-main p strong{color:var(--c-ink);font-weight:600}
.doc-list{list-style:none;display:grid;gap:14px;margin:0 0 20px}
.doc-list li{
  position:relative;padding:16px 18px 16px 46px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-md);font-size:15.5px;line-height:1.85;color:var(--c-ink-2);box-shadow:var(--sh-1);
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.doc-list li::before{
  content:"";position:absolute;left:18px;top:22px;width:9px;height:9px;border-radius:50%;
  background:var(--c-brand);box-shadow:0 0 0 4px var(--c-brand-soft);
}
.doc-list li:hover{box-shadow:var(--sh-2);border-color:#CFDDEe;transform:translateY(-1px)}
.doc-list li b{color:var(--c-ink);font-weight:600}

.quote-block{
  border-left:3px solid var(--c-brand);background:var(--c-brand-soft);border-radius:0 12px 12px 0;
  padding:18px 22px;color:var(--c-brand-strong);font-size:15.5px;line-height:1.85;margin:24px 0;
}
.quote-block cite{display:block;margin-top:8px;font-style:normal;font-size:13px;color:#4A6E9C}

.flow-figure{margin:24px 0 8px}
.flow-figure img{width:100%;border-radius:var(--r-lg);border:1px solid var(--c-line);box-shadow:var(--sh-1)}
.flow-figure figcaption{margin-top:10px;font-size:13px;color:#8494AB;text-align:center}

.step-list{display:grid;gap:14px;margin:22px 0 0}
.step-item{
  display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-md);padding:18px 20px;box-shadow:var(--sh-1);
  transition:box-shadow .2s ease,border-color .2s ease;
}
.step-item:hover{box-shadow:var(--sh-2);border-color:#CFDDEe}
.step-no{
  flex-shrink:0;width:44px;height:44px;border-radius:11px;background:var(--c-brand-soft);
  color:var(--c-brand-strong);font-size:18px;font-weight:700;display:grid;place-items:center;letter-spacing:.02em;
}
.step-body h4{font-size:16px;font-weight:600;color:var(--c-ink);margin-bottom:4px}
.step-body p{font-size:15px;line-height:1.8;color:var(--c-ink-2);margin:0}

/* 表格 */
.table-wrap{margin:22px 0 8px;border:1px solid var(--c-line);border-radius:var(--r-md);overflow-x:auto;background:#fff;box-shadow:var(--sh-1)}
.risk-table{width:100%;min-width:560px;border-collapse:collapse;font-size:15px}
.risk-table caption{caption-side:top;text-align:left;padding:16px 18px 8px;font-size:14px;color:var(--c-ink-2)}
.risk-table th{
  background:var(--c-brand-soft);color:var(--c-brand-strong);font-size:14px;font-weight:600;
  text-align:left;padding:14px 18px;white-space:nowrap;
}
.risk-table td{padding:14px 18px;border-top:1px solid var(--c-line);color:var(--c-ink-2);line-height:1.8;vertical-align:top}
.risk-table tbody tr{transition:background-color .18s ease}
.risk-table tbody tr:hover{background:#F2F7FD}
.risk-table td:first-child{color:var(--c-ink);font-weight:500}

/* FAQ */
.faq-list{display:grid;gap:12px;margin-top:20px}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease}
.faq-item:hover{box-shadow:var(--sh-2);border-color:#CFDDEe}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--c-ink);line-height:1.6;
}
.faq-icon{position:relative;flex-shrink:0;width:22px;height:22px;border-radius:50%;background:var(--c-brand-soft)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-brand-strong);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .22s ease,opacity .22s ease;
}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease}
.faq-a-inner{padding:0 22px 20px;border-top:1px solid var(--c-line);padding-top:16px}
.faq-a p{font-size:15px;line-height:1.85;color:var(--c-ink-2);margin:0}

/* CTA */
.cta-section{padding:64px 0 96px}
.cta-card{
  background:linear-gradient(140deg,#0E3E77 0%,#15529B 100%);
  border-radius:var(--r-xl);padding:52px 56px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:36px;box-shadow:var(--sh-3);
}
.cta-copy h2{font-size:28px;line-height:1.4;font-weight:700;color:#fff;margin-bottom:12px}
.cta-copy p{font-size:15.5px;line-height:1.85;color:#CBDCEF;max-width:620px;margin:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex-shrink:0}
.cta-actions .btn-ghost{background:transparent;border-color:rgba(255,255,255,.4);color:#fff}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;box-shadow:none}

/* 页脚 */
.site-footer{background:var(--c-footer);color:#A9B6C9;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.25fr;gap:40px;padding-bottom:44px}
.footer-brand .logo-text strong{color:#fff}
.footer-brand .logo-text em{color:#8FA2BA}
.footer-brand .logo-mark{background:rgba(255,255,255,.12);color:#fff}
.footer-desc{font-size:14px;line-height:1.9;color:#93A4BB;margin:16px 0 18px;max-width:350px}
.footer-search input{
  width:100%;height:42px;border-radius:999px;border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);color:#fff;padding:0 18px;font-size:14px;outline:0;
  transition:border-color .2s ease,background-color .2s ease;
}
.footer-search input::placeholder{color:#7F92AA}
.footer-search input:focus{border-color:rgba(255,255,255,.45);background:rgba(255,255,255,.1)}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col li{font-size:14px;color:#93A4BB}
.footer-col a{
  display:inline-block;font-size:14px;color:#A9B6C9;border-left:2px solid transparent;
  padding-left:0;transition:color .2s ease,padding-left .2s ease,border-color .2s ease;
}
.footer-col a:hover{color:#fff;padding-left:8px;border-left-color:var(--c-brand)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;text-align:center;font-size:13px;color:#7F92AA}

/* 响应式 */
@media (max-width:1024px){
  .doc-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .doc-aside{position:static;grid-template-columns:1fr;order:-1}
  .toc{grid-auto-flow:column;grid-auto-columns:max-content;overflow-x:auto;gap:8px;padding-bottom:4px}
  .toc a{white-space:nowrap;border-left:0;border-bottom:3px solid transparent;border-radius:8px 8px 0 0}
  .toc a.active{border-left:0;border-bottom-color:var(--c-brand)}
  .page-hero h1{font-size:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-card{flex-direction:column;align-items:flex-start;padding:40px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .header-main{height:64px;gap:12px}
  .nav-search{display:none}
  .nav-toggle{display:flex}
  .header-actions .btn{height:38px;padding:0 14px;font-size:13px}
  .nav-bar{display:none}
  .page-hero{padding:28px 0 40px}
  .page-hero h1{font-size:30px;line-height:1.3;margin:14px 0 12px}
  .page-hero-lead{font-size:15.5px}
  .section{padding:40px 0 0}
  .doc-main h2{font-size:23px}
  .doc-main p{font-size:16px}
  .doc-block{margin-bottom:40px}
  .cta-section{padding:44px 0 64px}
  .cta-card{padding:32px 24px;border-radius:18px}
  .cta-copy h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .site-footer{padding-top:48px}
}
@media (max-width:520px){
  .page-hero h1{font-size:26px}
  .logo-text strong{font-size:15px}
  .logo-text em{font-size:10px}
  .step-item{flex-direction:column;gap:10px}
  .faq-q{font-size:15px;padding:16px 18px}
  .faq-a-inner{padding:14px 18px 18px}
  .doc-list li{padding:14px 16px 14px 42px}
  .doc-list li::before{left:16px;top:20px}
}

/* roulang page: category3 */
:root{
    --c-brand:#15529B; --c-brand-strong:#0E3E77; --c-brand-soft:#E8F0FA;
    --c-accent:#D9822B; --c-accent-soft:#FDF1E3;
    --c-ink:#16202E; --c-ink-2:#55637A;
    --c-line:#E3E9F2; --c-bg:#F6F8FC; --c-card:#FFFFFF; --c-footer:#0D1F33;
    --sh-1:0 1px 2px rgba(16,38,68,.06);
    --sh-2:0 8px 24px rgba(16,38,68,.08);
    --sh-3:0 18px 48px rgba(16,38,68,.12);
    --r-sm:8px; --r-md:12px; --r-lg:16px; --r-xl:20px;
    --container:1200px;
    --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:100px;}
  body{
    margin:0;background:var(--c-bg);color:var(--c-ink);
    font-family:var(--font-cn);font-size:16px;line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
  ul,ol{padding:0;list-style:none;}
  a{color:inherit;text-decoration:none;}
  img{max-width:100%;display:block;border:0;}
  button,input{font-family:inherit;font-size:inherit;color:inherit;}
  button{cursor:pointer;border:0;background:none;}
  ::selection{background:rgba(21,82,155,.14);}
  :focus-visible{outline:2px solid var(--c-brand);outline-offset:3px;border-radius:4px;}

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

  /* ---------- 通用组件 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 24px;border-radius:10px;font-size:15px;font-weight:600;
    transition:background-color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease,color .18s ease;
    white-space:nowrap;
  }
  .btn-primary{background:var(--c-brand);color:#fff;box-shadow:var(--sh-1);}
  .btn-primary:hover{background:var(--c-brand-strong);transform:translateY(-1px);box-shadow:var(--sh-2);}
  .btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
  .btn-accent{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1);}
  .btn-accent:hover{background:#c2731f;transform:translateY(-1px);box-shadow:var(--sh-2);}
  .btn-ghost{background:#fff;color:var(--c-brand);border:1px solid var(--c-line);}
  .btn-ghost:hover{border-color:var(--c-brand);box-shadow:var(--sh-2);transform:translateY(-1px);}
  .btn-ghost-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.42);}
  .btn-ghost-light:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.72);}
  .link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-brand);}
  .link-arrow svg{transition:transform .18s ease;}
  .link-arrow:hover svg{transform:translateX(2px);}

  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 10px;border-radius:6px;font-size:12px;font-weight:600;
    background:var(--c-brand-soft);color:var(--c-brand-strong);letter-spacing:.01em;
  }
  .badge-accent{background:var(--c-accent-soft);color:#a85f16;}

  .section{padding:96px 0;}
  .section-tight{padding:72px 0;}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
  .section-title{font-size:34px;line-height:1.3;font-weight:700;letter-spacing:-.01em;}
  .section-sub{margin-top:12px;font-size:15px;color:var(--c-ink-2);max-width:640px;}

  /* ---------- Header ---------- */
  .site-header{
    position:sticky;top:0;z-index:80;background:#fff;
    border-bottom:1px solid var(--c-line);
    transition:box-shadow .2s ease;
  }
  .site-header.is-scrolled{box-shadow:var(--sh-2);}
  .header-inner{display:flex;align-items:center;gap:20px;height:76px;}
  .logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;min-height:44px;}
  .logo-mark{
    width:32px;height:32px;border-radius:9px;flex:0 0 auto;
    background:linear-gradient(150deg,var(--c-brand),var(--c-brand-strong));
    color:#fff;display:flex;align-items:center;justify-content:center;
    box-shadow:var(--sh-1);
  }
  .logo-text{display:flex;flex-direction:column;line-height:1.2;}
  .logo-text strong{font-size:17px;font-weight:600;color:var(--c-ink);letter-spacing:-.01em;}
  .logo-text em{font-style:normal;font-size:11px;letter-spacing:.06em;color:var(--c-ink-2);}

  .header-search{
    flex:1 1 auto;max-width:520px;position:relative;display:flex;align-items:center;
  }
  .header-search svg{position:absolute;left:18px;color:var(--c-ink-2);pointer-events:none;}
  .header-search input{
    width:100%;height:44px;border-radius:999px;border:1px solid var(--c-line);
    padding:0 18px 0 46px;background:#FAFBFD;font-size:14px;color:var(--c-ink);
    transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
  }
  .header-search input::placeholder{color:#8C99AC;}
  .header-search input:focus{
    outline:none;background:#fff;border-color:var(--c-brand);
    box-shadow:0 0 0 4px rgba(21,82,155,.12),var(--sh-2);
  }

  .nav-links{display:flex;align-items:center;gap:22px;margin-left:auto;}
  .nav-link{
    position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);
    padding:6px 0;min-height:44px;display:inline-flex;align-items:center;
    transition:color .18s ease;
  }
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:6px;height:2px;border-radius:2px;
    background:var(--c-brand);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
  }
  .nav-link:hover{color:var(--c-brand);}
  .nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
  .nav-link.active{color:var(--c-brand);font-weight:600;}
  .header-cta{height:44px;padding:0 20px;font-size:14px;flex:0 0 auto;}

  .nav-toggle{
    display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--c-line);
    align-items:center;justify-content:center;color:var(--c-ink);background:#fff;
  }
  .nav-toggle:hover{border-color:var(--c-brand);color:var(--c-brand);}
  .mobile-panel{display:none;border-top:1px solid var(--c-line);background:#fff;padding:16px 0 20px;}
  .mobile-panel.open{display:block;}
  .mobile-panel .header-search{max-width:none;margin-bottom:14px;}
  .mobile-panel .nav-links{
    flex-direction:column;align-items:stretch;gap:2px;margin:0;
  }
  .mobile-panel .nav-link{padding:12px 4px;border-bottom:1px solid var(--c-line);width:100%;}
  .mobile-panel .nav-link::after{display:none;}
  .mobile-panel .nav-link.active{color:var(--c-brand);}
  .mobile-panel .btn{margin-top:16px;width:100%;}

  /* ---------- 页面头 banner ---------- */
  .page-banner{
    position:relative;overflow:hidden;background:var(--c-brand-strong);color:#fff;
    min-height:220px;display:flex;align-items:flex-end;isolation:isolate;
  }
  .page-banner::before{
    content:"";position:absolute;inset:0;z-index:-2;
    background-image:url('/assets/images/backpic/back-1.webp');
    background-size:cover;background-position:center;
    opacity:.34;
  }
  .page-banner::after{
    content:"";position:absolute;inset:0;z-index:-1;
    background:
      linear-gradient(115deg,rgba(13,31,51,.92) 0%,rgba(14,62,119,.78) 52%,rgba(21,82,155,.52) 100%),
      repeating-linear-gradient(0deg,rgba(255,255,255,.05) 0 1px,transparent 1px 24px),
      repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 24px);
  }
  .page-banner .container{padding-top:40px;padding-bottom:40px;width:100%;}
  .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:18px;}
  .crumb a{color:rgba(255,255,255,.86);}
  .crumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
  .crumb .sep{opacity:.6;}
  .page-banner h1{font-size:44px;line-height:1.2;font-weight:700;letter-spacing:-.01em;max-width:820px;}
  .page-banner .banner-sub{margin-top:14px;font-size:16px;color:rgba(255,255,255,.86);max-width:680px;line-height:1.8;}
  .banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
  .banner-tags span{
    font-size:12px;padding:5px 12px;border-radius:999px;
    background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.26);color:#fff;
  }

  /* ---------- 指标条 ---------- */
  .stat-band{background:#fff;border-bottom:1px solid var(--c-line);}
  .stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;padding:34px 0;}
  .stat-cell{padding:0 24px;border-left:1px solid var(--c-line);}
  .stat-cell:first-child{border-left:0;padding-left:0;}
  .stat-num{font-size:40px;font-weight:700;line-height:1.1;color:var(--c-brand);letter-spacing:-.02em;}
  .stat-num small{font-size:15px;font-weight:600;margin-left:4px;color:var(--c-ink-2);letter-spacing:0;}
  .stat-label{margin-top:8px;font-size:14px;color:var(--c-ink-2);}

  /* ---------- 时间轴 ---------- */
  .timeline-wrap{display:grid;grid-template-columns:280px 1fr;gap:56px;align-items:start;}
  .sticky-note{position:sticky;top:112px;}
  .sticky-note h2{font-size:26px;line-height:1.35;font-weight:700;}
  .sticky-note p{margin-top:14px;font-size:15px;color:var(--c-ink-2);}
  .note-list{margin-top:22px;border-top:1px solid var(--c-line);}
  .note-list li{
    display:flex;align-items:center;gap:10px;padding:12px 0;
    border-bottom:1px solid var(--c-line);font-size:14px;color:var(--c-ink-2);
  }
  .note-list li b{color:var(--c-brand);font-size:13px;font-weight:700;letter-spacing:.04em;}

  .timeline{position:relative;padding-left:40px;}
  .timeline::before{
    content:"";position:absolute;left:9px;top:10px;bottom:10px;width:2px;border-radius:2px;
    background:linear-gradient(180deg,var(--c-brand) 0%,rgba(21,82,155,.16) 100%);
  }
  .tl-item{position:relative;margin-bottom:28px;}
  .tl-item:last-child{margin-bottom:0;}
  .tl-item::before{
    content:"";position:absolute;left:-38px;top:26px;width:16px;height:16px;border-radius:50%;
    background:#fff;border:3px solid var(--c-brand);box-shadow:0 0 0 4px rgba(21,82,155,.08);
  }
  .tl-item.is-current::before{background:var(--c-accent);border-color:var(--c-accent);box-shadow:0 0 0 4px rgba(217,130,43,.16);}
  .tl-card{
    background:#fff;border:1px solid var(--c-line);border-radius:14px;
    padding:24px 26px;box-shadow:var(--sh-1);
    transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
  }
  .tl-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:#CFDCEC;}
  .tl-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
  .tl-ver{font-size:13px;font-weight:700;letter-spacing:.04em;color:var(--c-brand);background:var(--c-brand-soft);padding:4px 10px;border-radius:6px;}
  .tl-date{font-size:13px;color:var(--c-ink-2);}
  .tl-card h3{margin-top:14px;font-size:20px;line-height:1.45;font-weight:600;}
  .tl-card p{margin-top:10px;font-size:15px;color:var(--c-ink-2);line-height:1.85;}
  .tl-points{margin-top:14px;display:grid;gap:8px;}
  .tl-points li{position:relative;padding-left:18px;font-size:14px;color:var(--c-ink-2);}
  .tl-points li::before{
    content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--c-brand);
  }

  /* ---------- 能力矩阵 ---------- */
  .matrix{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
  .matrix-grid{display:grid;grid-template-columns:1.15fr .85fr .85fr;gap:24px;}
  .m-card{
    background:#fff;border:1px solid var(--c-line);border-radius:16px;padding:28px;
    box-shadow:var(--sh-1);display:flex;flex-direction:column;
    transition:box-shadow .2s ease,transform .2s ease;
  }
  .m-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
  .m-card.feature{
    background:linear-gradient(160deg,#fff 0%,#F4F8FD 100%);
    border-color:#CFDCEC;box-shadow:var(--sh-2);
  }
  .m-icon{
    width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
    background:var(--c-brand-soft);color:var(--c-brand);margin-bottom:18px;
  }
  .m-card.feature .m-icon{background:var(--c-accent-soft);color:#a85f16;}
  .m-card h3{font-size:19px;font-weight:600;line-height:1.45;}
  .m-card p{margin-top:10px;font-size:14px;color:var(--c-ink-2);line-height:1.85;}
  .m-list{margin-top:16px;display:grid;gap:8px;}
  .m-list li{font-size:13px;color:var(--c-ink-2);display:flex;gap:8px;align-items:flex-start;}
  .m-list li svg{flex:0 0 auto;margin-top:5px;color:var(--c-brand);}
  .m-foot{margin-top:auto;padding-top:20px;}

  /* ---------- 推荐卡片 ---------- */
  .rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .rec-card{
    display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);
    border-radius:16px;overflow:hidden;box-shadow:var(--sh-1);
    transition:box-shadow .2s ease,transform .2s ease;
  }
  .rec-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
  .rec-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-brand-soft);}
  .rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
  .rec-card:hover .rec-thumb img{transform:scale(1.02);}
  .rec-body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1;}
  .rec-body h3{font-size:18px;font-weight:600;line-height:1.5;color:var(--c-ink);transition:color .18s ease;}
  .rec-card:hover .rec-body h3{color:var(--c-brand);}
  .rec-body p{margin-top:10px;font-size:14px;color:var(--c-ink-2);line-height:1.8;}
  .rec-foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;}
  .rec-time{font-size:13px;color:#8C99AC;}

  /* ---------- FAQ ---------- */
  .faq-wrap{max-width:900px;margin:0 auto;}
  .faq-item{
    background:#fff;border:1px solid var(--c-line);border-radius:16px;
    box-shadow:var(--sh-1);margin-bottom:14px;overflow:hidden;
    transition:box-shadow .2s ease,border-color .2s ease;
  }
  .faq-item:hover{box-shadow:var(--sh-2);border-color:#CFDCEC;}
  .faq-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
    gap:16px;padding:20px 24px;font-size:16px;font-weight:600;color:var(--c-ink);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-icon{
    flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--c-brand-soft);
    color:var(--c-brand);display:flex;align-items:center;justify-content:center;
    font-size:16px;font-weight:700;line-height:1;transition:transform .22s ease,background-color .22s ease;
  }
  .faq-icon::before{content:"+";}
  .faq-item[open] .faq-icon{transform:rotate(180deg);background:var(--c-accent-soft);color:#a85f16;}
  .faq-item[open] .faq-icon::before{content:"−";}
  .faq-item[open] summary{border-bottom:1px solid var(--c-line);}
  .faq-body{padding:18px 24px 22px;}
  .faq-body p{font-size:15px;line-height:1.85;color:var(--c-ink-2);}
  .faq-body p + p{margin-top:10px;}

  /* ---------- CTA ---------- */
  .cta-block{
    background:linear-gradient(140deg,var(--c-brand-strong) 0%,var(--c-brand) 62%,#1B63B4 100%);
    border-radius:20px;padding:56px;color:#fff;position:relative;overflow:hidden;
    display:flex;align-items:center;justify-content:space-between;gap:40px;
  }
  .cta-block::after{
    content:"";position:absolute;right:-80px;top:-90px;width:320px;height:320px;border-radius:50%;
    background:radial-gradient(circle,rgba(255,255,255,.16),transparent 68%);
  }
  .cta-copy h2{font-size:30px;line-height:1.35;font-weight:700;}
  .cta-copy p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.86);max-width:560px;}
  .cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1;}

  /* ---------- Footer ---------- */
  .site-footer{background:var(--c-footer);color:#A9B6C9;padding:64px 0 0;margin-top:96px;}
  .footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
  .site-footer .logo{margin-bottom:18px;}
  .site-footer .logo-text strong{color:#fff;}
  .site-footer .logo-text em{color:#8FA1B8;}
  .site-footer .logo-mark{background:rgba(255,255,255,.12);box-shadow:none;}
  .footer-desc{font-size:14px;line-height:1.85;color:#A9B6C9;max-width:340px;}
  .footer-search{margin-top:20px;max-width:320px;}
  .footer-search input{
    width:100%;height:42px;border-radius:10px;border:1px solid rgba(255,255,255,.16);
    background:rgba(255,255,255,.06);padding:0 14px;font-size:14px;color:#fff;
    transition:border-color .18s ease,background-color .18s ease;
  }
  .footer-search input::placeholder{color:#8194AC;}
  .footer-search input:focus{outline:none;border-color:rgba(255,255,255,.5);background:rgba(255,255,255,.1);}
  .footer-col h4{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px;}
  .footer-col ul li{margin-bottom:10px;font-size:14px;line-height:1.7;}
  .footer-col ul li a{position:relative;padding-left:0;transition:color .18s ease,padding-left .18s ease;}
  .footer-col ul li a::before{
    content:"";position:absolute;left:-10px;top:50%;transform:translateY(-50%);
    width:3px;height:0;border-radius:2px;background:var(--c-accent);transition:height .18s ease;
  }
  .footer-col ul li a:hover{color:#fff;padding-left:6px;}
  .footer-col ul li a:hover::before{height:14px;}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.08);padding:22px 0 26px;text-align:center;
    font-size:13px;color:#8194AC;
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1280px){
    .nav-links{gap:16px;}
  }
  @media (max-width:1024px){
    .header-inner{height:66px;gap:14px;}
    .header-search{max-width:none;}
    .nav-links,.header-cta{display:none;}
    .nav-toggle{display:inline-flex;}
    .mobile-panel .nav-links{display:flex;}
    .section{padding:72px 0;}
    .section-tight{padding:56px 0;}
    .section-title{font-size:28px;}
    .page-banner h1{font-size:34px;}
    .timeline-wrap{grid-template-columns:1fr;gap:32px;}
    .sticky-note{position:static;}
    .matrix-grid{grid-template-columns:1fr 1fr;}
    .m-card.feature{grid-column:1 / -1;}
    .rec-grid{grid-template-columns:repeat(2,1fr);}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
    .cta-block{padding:40px;flex-direction:column;align-items:flex-start;gap:26px;}
    .cta-copy h2{font-size:26px;}
    .stat-grid{grid-template-columns:repeat(2,1fr);row-gap:26px;}
    .stat-cell:nth-child(3){border-left:0;padding-left:0;}
  }
  @media (max-width:768px){
    .container{padding:0 20px;}
    .section{padding:52px 0;}
    .section-tight{padding:44px 0;}
    .section-title{font-size:24px;}
    .section-head{margin-bottom:28px;}
    .logo-text strong{font-size:15px;}
    .logo-text em{font-size:10px;}
    .page-banner{min-height:0;}
    .page-banner .container{padding-top:30px;padding-bottom:30px;}
    .page-banner h1{font-size:26px;}
    .page-banner .banner-sub{font-size:14px;}
    .timeline{padding-left:28px;}
    .timeline::before{left:5px;}
    .tl-item::before{left:-29px;width:14px;height:14px;top:24px;}
    .tl-card{padding:20px;}
    .tl-card h3{font-size:18px;}
    .matrix-grid{grid-template-columns:1fr;}
    .rec-grid{grid-template-columns:1fr;}
    .faq-item summary{padding:16px 18px;font-size:15px;}
    .faq-body{padding:14px 18px 18px;}
    .cta-block{padding:30px 24px;border-radius:16px;}
    .cta-copy h2{font-size:22px;}
    .cta-actions{width:100%;}
    .cta-actions .btn{width:100%;}
    .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
    .site-footer{padding-top:48px;margin-top:52px;}
    .btn{height:46px;}
  }
  @media (max-width:520px){
    .stat-grid{grid-template-columns:1fr;row-gap:20px;}
    .stat-cell{border-left:0;padding:0;border-top:1px solid var(--c-line);padding-top:16px;}
    .stat-cell:first-child{border-top:0;padding-top:0;}
    .stat-num{font-size:32px;}
  }