/* roulang page: index */
:root{
    --primary:#0B4FD8;
    --primary-700:#083AA8;
    --primary-50:#EEF4FF;
    --primary-100:#DCE7FF;
    --accent:#FF6B2C;
    --accent-50:#FFF1E8;
    --success:#12A06A;
    --warn:#E8A317;
    --bg:#F4F7FC;
    --card:#FFFFFF;
    --line:#E4EAF4;
    --text:#33415C;
    --muted:#6B7A96;
    --heading:#0C1B33;
    --r-lg:24px;
    --r-md:16px;
    --r-sm:12px;
    --shadow-card:0 1px 2px rgba(12,27,51,.04), 0 10px 28px -14px rgba(11,79,216,.20);
    --shadow-hover:0 2px 6px rgba(12,27,51,.06), 0 18px 40px -16px rgba(11,79,216,.30);
  }
  *{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:16px;
    line-height:1.75;
    font-variant-numeric:tabular-nums;
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;cursor:pointer;border:none;background:none;}
  h1,h2,h3,h4,p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
  @media (min-width:768px){ .container{padding:0 24px;} }
  @media (min-width:1024px){ .container{padding:0 32px;} }

  /* ---------- 导航 ---------- */
  .site-header{position:sticky;top:0;z-index:50;padding-top:16px;transition:padding .25s ease;}
  .site-header.is-stuck{padding-top:8px;}
  .nav-shell{position:relative;}
  .nav-panel{
    display:flex;align-items:center;gap:14px;
    background:#fff;border:1px solid var(--line);border-radius:20px;
    box-shadow:var(--shadow-card);
    padding:10px 16px;
    transition:box-shadow .25s ease,padding .25s ease;
  }
  .site-header.is-stuck .nav-panel{box-shadow:0 8px 26px -10px rgba(11,79,216,.35);padding:8px 16px;}
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .brand-mark{
    width:32px;height:32px;border-radius:10px;flex-shrink:0;
    background:linear-gradient(135deg,#0B4FD8,#3C81FF);
    display:grid;place-items:center;color:#fff;font-size:14px;
    box-shadow:0 6px 14px -6px rgba(11,79,216,.65);
  }
  .brand-text{font-size:17px;font-weight:800;color:var(--heading);letter-spacing:-.2px;white-space:nowrap;}
  .nav-links{display:none;align-items:center;gap:8px;margin-left:auto;}
  @media (min-width:1024px){ .nav-links{display:flex;} }
  .nav-item{
    display:inline-flex;align-items:center;gap:7px;
    padding:9px 14px;border-radius:10px;background:var(--bg);
    font-size:15px;font-weight:500;color:var(--text);
    transition:background .2s ease-out,color .2s ease-out,transform .2s ease-out;
  }
  .nav-item i{font-size:15px;color:var(--muted);transition:color .2s ease-out;}
  .nav-item:hover{background:var(--primary-50);color:var(--primary);transform:translateY(-1px);}
  .nav-item:hover i{color:var(--primary);}
  .nav-item.active{background:var(--primary);color:#fff;box-shadow:0 8px 18px -10px rgba(11,79,216,.9);}
  .nav-item.active i{color:#fff;}
  .nav-cta{display:none;margin-left:8px;}
  @media (min-width:1024px){ .nav-cta{display:block;} }
  .nav-toggle{
    margin-left:auto;width:42px;height:42px;border-radius:12px;
    background:var(--primary-50);color:var(--primary);font-size:18px;
    display:grid;place-items:center;transition:background .2s ease-out,transform .2s ease-out;
  }
  .nav-toggle:hover{background:var(--primary-100);transform:translateY(-1px);}
  @media (min-width:1024px){ .nav-toggle{display:none;} }

  /* 抽屉 */
  .mobile-drawer{position:fixed;inset:0;z-index:70;visibility:hidden;opacity:0;transition:opacity .24s ease,visibility .24s ease;}
  .mobile-drawer.open{visibility:visible;opacity:1;}
  .drawer-backdrop{position:absolute;inset:0;background:rgba(12,27,51,.42);}
  .drawer-panel{
    position:absolute;top:0;right:0;height:100%;width:min(360px,88vw);
    background:#fff;padding:20px;display:flex;flex-direction:column;gap:18px;
    transform:translateX(100%);transition:transform .24s cubic-bezier(.4,0,.2,1);
    box-shadow:-20px 0 40px -24px rgba(12,27,51,.5);
  }
  .mobile-drawer.open .drawer-panel{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;}
  .drawer-close{width:38px;height:38px;border-radius:10px;background:var(--bg);color:var(--muted);display:grid;place-items:center;font-size:16px;}
  .drawer-close:hover{background:var(--primary-50);color:var(--primary);}
  .drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
  .drawer-card{
    display:flex;flex-direction:column;gap:8px;
    background:var(--bg);border:1px solid var(--line);border-radius:12px;
    padding:14px;font-size:14px;font-weight:600;color:var(--text);
    transition:background .2s ease-out,transform .2s ease-out;
  }
  .drawer-card i{font-size:18px;color:var(--primary);}
  .drawer-card:hover{background:var(--primary-50);transform:translateY(-1px);}
  .drawer-card.active{background:var(--primary);color:#fff;}
  .drawer-card.active i{color:#fff;}
  .drawer-foot{margin-top:auto;}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 20px;border-radius:12px;
    font-size:15px;font-weight:600;letter-spacing:.2px;
    transition:background .2s ease-out,color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
  }
  .btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 22px -12px rgba(11,79,216,.95);}
  .btn-primary:hover{background:var(--primary-700);transform:translateY(-1px);box-shadow:0 16px 30px -12px rgba(11,79,216,.95);}
  .btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px -10px rgba(11,79,216,.9);}
  .btn-ghost{background:#fff;color:var(--primary);border:1px solid var(--primary-100);}
  .btn-ghost:hover{background:var(--primary-50);transform:translateY(-1px);}
  .btn-ghost:active{transform:translateY(0);}
  .btn-lg{height:48px;padding:0 26px;font-size:16px;}
  .btn-white{background:#fff;color:var(--primary-700);}
  .btn-white:hover{background:#EAF1FF;transform:translateY(-1px);}
  .btn-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--primary);}
  .btn-link i{transition:transform .2s ease-out;}
  .btn-link:hover i{transform:translateX(3px);}

  /* ---------- 通用 ---------- */
  .section{padding:48px 0;}
  @media (min-width:1024px){ .section{padding:80px 0;} }
  .section-white{background:#fff;}
  .section-alt{background:var(--primary-50);}
  .sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:28px;}
  .sec-kicker{display:inline-flex;align-items:center;gap:8px;font-size:16px;font-weight:600;color:var(--primary);}
  .sec-kicker::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--primary);}
  .sec-title{font-size:26px;line-height:1.4;font-weight:800;color:var(--heading);margin-top:10px;letter-spacing:-.3px;}
  .sec-desc{margin-top:10px;font-size:15px;color:var(--muted);max-width:640px;}
  .card{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
    box-shadow:var(--shadow-card);
    transition:border-color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out;
  }
  .card:hover{border-color:var(--primary-100);box-shadow:var(--shadow-hover);transform:translateY(-2px);}
  .badge{
    display:inline-flex;align-items:center;gap:5px;height:24px;padding:0 10px;
    border-radius:999px;font-size:12px;font-weight:600;white-space:nowrap;
  }
  .badge-accent{background:var(--accent);color:#fff;}
  .badge-ok{background:var(--success);color:#fff;}
  .badge-muted{background:#EDF1F8;color:#5C6C88;}
  .badge-soft{background:var(--primary-50);color:var(--primary);}

  /* ---------- Hero ---------- */
  .hero{position:relative;overflow:hidden;padding:44px 0 56px;}
  @media (min-width:1024px){ .hero{padding:64px 0 88px;} }
  .hero::before{
    content:"";position:absolute;top:-160px;right:-160px;width:520px;height:520px;
    background:rgba(11,79,216,.08);border-radius:64px;transform:rotate(18deg);pointer-events:none;
  }
  .hero::after{
    content:"";position:absolute;bottom:-120px;left:-120px;width:320px;height:320px;
    background:rgba(255,107,44,.07);border-radius:48px;transform:rotate(-12deg);pointer-events:none;
  }
  .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr;gap:36px;}
  @media (min-width:1024px){ .hero-grid{grid-template-columns:6fr 6fr;gap:52px;align-items:center;} }
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 12px;
    border-radius:999px;background:#fff;border:1px solid var(--primary-100);
    color:var(--primary);font-size:13px;font-weight:600;
  }
  .hero h1{
    margin-top:16px;font-size:32px;line-height:1.3;font-weight:800;
    color:var(--heading);letter-spacing:-.6px;
  }
  @media (max-width:640px){ .hero h1{font-size:26px;line-height:1.34;} }
  .hero-sub{margin-top:14px;font-size:16px;line-height:1.8;color:var(--muted);max-width:520px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
  .stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:30px;max-width:520px;}
  .stat-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 12px;box-shadow:var(--shadow-card);}
  .stat-num{display:block;font-size:24px;font-weight:800;color:var(--primary);line-height:1.2;}
  .stat-label{display:block;margin-top:4px;font-size:13px;color:var(--muted);}
  .hero-visual{position:relative;}
  .hero-media{
    position:relative;border-radius:var(--r-lg);overflow:hidden;background:#EEF1F6;
    aspect-ratio:16/11;box-shadow:0 24px 60px -30px rgba(12,27,51,.55);
  }
  .hero-media img{width:100%;height:100%;object-fit:cover;}
  .hero-media::after{content:"";position:absolute;inset:0;background:rgba(11,79,216,.06);}
  .float-card{
    position:absolute;right:14px;bottom:14px;width:220px;
    background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
    box-shadow:0 18px 40px -18px rgba(12,27,51,.42);
    padding:14px;display:flex;align-items:center;gap:12px;
  }
  @media (max-width:520px){ .float-card{width:190px;right:10px;bottom:10px;padding:12px;} }
  .ring{position:relative;width:52px;height:52px;flex-shrink:0;}
  .ring svg{width:52px;height:52px;transform:none;}
  .ring-val{position:absolute;inset:0;display:grid;place-items:center;font-size:12px;font-weight:700;color:var(--primary);}
  .float-title{font-size:14px;font-weight:700;color:var(--heading);}
  .float-desc{font-size:12px;color:var(--muted);margin-top:2px;}

  /* ---------- 步骤 ---------- */
  .steps-grid{display:grid;grid-template-columns:1fr;gap:20px;}
  @media (min-width:640px){ .steps-grid{grid-template-columns:repeat(2,1fr);} }
  @media (min-width:1024px){ .steps-grid{grid-template-columns:repeat(4,1fr);gap:24px;position:relative;} }
  @media (min-width:1024px){
    .steps-grid::before{
      content:"";position:absolute;left:8%;right:8%;top:72px;
      border-top:2px dashed var(--primary-100);z-index:0;
    }
  }
  .step-card{position:relative;z-index:1;padding:22px;overflow:hidden;}
  .step-num{
    position:absolute;top:6px;right:14px;font-size:64px;line-height:1;font-weight:800;
    color:var(--primary-50);transition:color .2s ease-out;pointer-events:none;
  }
  .step-card:hover .step-num{color:rgba(11,79,216,.22);}
  .step-icon{
    width:46px;height:46px;border-radius:12px;background:var(--primary-50);
    display:grid;place-items:center;color:var(--primary);font-size:19px;margin-bottom:14px;
  }
  .step-card h3{font-size:18px;font-weight:700;color:var(--heading);line-height:1.5;}
  .step-card p{margin-top:8px;font-size:14px;line-height:1.7;color:var(--muted);}

  /* ---------- 奖励 ---------- */
  .reward-grid{display:grid;grid-template-columns:1fr;gap:20px;}
  @media (min-width:640px){ .reward-grid{grid-template-columns:repeat(2,1fr);} }
  @media (min-width:1024px){ .reward-grid{grid-template-columns:repeat(3,1fr);gap:24px;} }
  @media (min-width:1024px){ .reward-main{grid-column:span 2;} }
  .reward-card{overflow:hidden;display:flex;flex-direction:column;}
  .reward-thumb{position:relative;aspect-ratio:4/3;background:#EEF1F6;overflow:hidden;}
  .reward-main .reward-thumb{aspect-ratio:16/9;}
  .reward-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out;}
  .reward-card:hover .reward-thumb img{transform:scale(1.04);}
  .reward-thumb .badge{position:absolute;top:12px;right:12px;}
  .reward-body{padding:18px;display:flex;flex-direction:column;gap:8px;flex:1;}
  .reward-body h3{font-size:17px;font-weight:700;color:var(--heading);}
  .reward-main .reward-body h3{font-size:20px;}
  .reward-body p{font-size:14px;color:var(--muted);line-height:1.7;}
  .reward-meta{margin-top:auto;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:6px;}

  /* ---------- 进度 ---------- */
  .progress-wrap{display:grid;grid-template-columns:1fr;gap:24px;}
  @media (min-width:1024px){ .progress-wrap{grid-template-columns:1fr 300px;align-items:start;gap:32px;} }
  .stage-list{display:flex;flex-direction:column;gap:18px;position:relative;padding-left:6px;}
  @media (min-width:1024px){ .stage-list{flex-direction:row;justify-content:space-between;gap:12px;padding-left:0;} }
  .stage-item{display:flex;align-items:flex-start;gap:12px;}
  @media (min-width:1024px){ .stage-item{flex-direction:column;align-items:center;text-align:center;flex:1;gap:10px;} }
  .stage-dot{
    width:16px;height:16px;border-radius:50%;background:#fff;border:3px solid var(--line);
    flex-shrink:0;margin-top:4px;
  }
  @media (min-width:1024px){ .stage-dot{margin-top:0;} }
  .stage-dot.done{background:var(--primary);border-color:var(--primary);}
  .stage-dot.current{border-color:var(--primary);animation:pulse 2.4s ease-out infinite;}
  .stage-label{font-size:13px;font-weight:600;color:var(--heading);}
  .stage-item.pending .stage-label{color:var(--muted);font-weight:500;}
  .stage-hint{font-size:12px;color:var(--muted);margin-top:2px;}
  @keyframes pulse{
    0%{box-shadow:0 0 0 0 rgba(11,79,216,.35);}
    70%{box-shadow:0 0 0 12px rgba(11,79,216,0);}
    100%{box-shadow:0 0 0 0 rgba(11,79,216,0);}
  }
  .bar-row{display:flex;align-items:center;gap:16px;margin-top:28px;}
  .progress-track{flex:1;height:8px;border-radius:999px;background:var(--line);overflow:hidden;}
  .progress-fill{height:100%;width:0;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--accent));transition:width .8s ease-out;}
  .progress-val{font-size:20px;font-weight:700;color:var(--primary);min-width:58px;text-align:right;}
  .side-card{padding:22px;}
  .side-card h3{font-size:17px;font-weight:700;color:var(--heading);}
  .side-card p{margin-top:10px;font-size:14px;line-height:1.75;color:var(--muted);}
  .side-card .btn{margin-top:16px;width:100%;}

  /* ---------- 参与 CTA ---------- */
  .join-card{
    background:var(--primary-50);border:1px solid var(--primary-100);border-radius:var(--r-lg);
    padding:26px;display:flex;flex-direction:column;gap:20px;
    box-shadow:var(--shadow-card);
  }
  @media (min-width:1024px){ .join-card{flex-direction:row;align-items:center;justify-content:space-between;padding:34px 36px;gap:32px;} }
  .join-card h2{font-size:20px;font-weight:800;color:var(--heading);line-height:1.45;}
  @media (min-width:1024px){ .join-card h2{font-size:24px;} }
  .join-card p{margin-top:10px;font-size:15px;color:var(--muted);}

  /* ---------- 资讯 ---------- */
  .news-grid{display:grid;grid-template-columns:1fr;gap:24px;}
  @media (min-width:1024px){ .news-grid{grid-template-columns:7fr 5fr;align-items:start;} }
  .news-main{display:block;overflow:hidden;}
  .news-main .thumb{position:relative;aspect-ratio:16/9;background:#EEF1F6;overflow:hidden;}
  .news-main .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out;}
  .news-main:hover .thumb img{transform:scale(1.03);}
  .news-main .thumb .badge{position:absolute;left:14px;top:14px;}
  .news-main .body{padding:20px;}
  .news-main h3{margin-top:12px;font-size:20px;font-weight:700;color:var(--heading);line-height:1.5;transition:color .2s ease-out;}
  .news-main:hover h3{color:var(--primary);}
  .news-main p{margin-top:10px;font-size:14px;line-height:1.75;color:var(--muted);}
  .news-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted);flex-wrap:wrap;}
  .news-list{display:grid;gap:14px;}
  .news-item{display:block;padding:16px 18px;}
  .news-item h3{margin-top:8px;font-size:16px;font-weight:700;color:var(--heading);line-height:1.55;transition:color .2s ease-out;}
  .news-item:hover h3{color:var(--primary);}
  .news-item p{margin-top:6px;font-size:13px;color:var(--muted);overflow:hidden;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;}
  .news-empty{
    border:1px dashed var(--primary-100);border-radius:var(--r-lg);background:#fff;
    padding:48px 24px;text-align:center;
  }
  .news-empty i{font-size:26px;color:rgba(11,79,216,.35);}
  .news-empty p{margin-top:12px;font-size:14px;color:var(--muted);}
  .news-empty .btn{margin-top:18px;}

  /* ---------- FAQ ---------- */
  .faq-item{margin-bottom:12px;overflow:hidden;border-radius:var(--r-md);}
  .faq-q{
    width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:14px 20px;text-align:left;font-size:16px;font-weight:600;color:var(--heading);
    transition:box-shadow .2s ease-out,color .2s ease-out;
  }
  .faq-q:hover{color:var(--primary);}
  .faq-item.open .faq-q{box-shadow:inset 3px 0 0 var(--primary);color:var(--primary);}
  .faq-icon{color:var(--muted);font-size:14px;flex-shrink:0;transition:transform .2s ease-out,color .2s ease-out;}
  .faq-item.open .faq-icon{color:var(--primary);transform:rotate(180deg);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out;}
  .faq-item.open .faq-a{max-height:360px;}
  .faq-a-inner{padding:0 20px 20px;font-size:14px;line-height:1.8;color:var(--text);}

  /* ---------- 收尾 CTA ---------- */
  .final-cta{
    background:var(--primary-700);border-radius:var(--r-lg);color:#fff;
    padding:32px 26px;display:flex;flex-direction:column;gap:20px;
    box-shadow:0 24px 60px -30px rgba(8,58,168,.9);
  }
  @media (min-width:1024px){ .final-cta{flex-direction:row;align-items:center;justify-content:space-between;padding:42px 44px;gap:32px;} }
  .final-cta h2{font-size:21px;font-weight:800;line-height:1.45;}
  @media (min-width:1024px){ .final-cta h2{font-size:26px;} }
  .final-cta p{margin-top:10px;font-size:15px;color:#CBDDFF;max-width:620px;}

  /* ---------- 页脚 ---------- */
  .site-footer{background:#0C1B33;color:#C7D2E4;margin-top:56px;padding:52px 0 22px;}
  @media (min-width:1024px){ .site-footer{padding-top:64px;} }
  .foot-grid{display:grid;grid-template-columns:1fr;gap:32px;}
  @media (min-width:640px){ .foot-grid{grid-template-columns:repeat(2,1fr);} }
  @media (min-width:1024px){ .foot-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;} }
  .foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .foot-brand .brand-text{color:#fff;}
  .foot-brand .brand-mark{box-shadow:none;}
  .foot-about{font-size:14px;line-height:1.85;color:#A9B8D1;}
  .foot-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:14px;}
  .foot-links{display:grid;gap:10px;}
  .foot-links a{font-size:14px;color:#C7D2E4;transition:color .2s ease-out;display:inline-block;border-bottom:2px solid transparent;padding-bottom:1px;}
  .foot-links a:hover{color:#fff;border-bottom-color:var(--primary);}
  .foot-info{display:grid;gap:10px;font-size:14px;color:#A9B8D1;}
  .foot-info span{display:flex;align-items:center;gap:8px;}
  .foot-info i{color:#6E8ABF;font-size:14px;}
  .foot-bottom{
    margin-top:36px;padding-top:20px;border-top:1px solid rgba(199,210,228,.16);
    display:flex;flex-direction:column;gap:10px;font-size:13px;color:#8FA1C0;
  }
  @media (min-width:768px){ .foot-bottom{flex-direction:row;align-items:center;justify-content:space-between;} }

/* roulang page: category1 */
:root{
  --primary:#0B4FD8;
  --primary-700:#083AA8;
  --primary-50:#EEF4FF;
  --primary-100:#DCE7FF;
  --accent:#FF6B2C;
  --accent-50:#FFF1E8;
  --success:#12A06A;
  --warn:#E8A317;
  --bg:#F4F7FC;
  --card:#FFFFFF;
  --line:#E4EAF4;
  --text:#33415C;
  --muted:#6B7A96;
  --title:#0C1B33;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-card:0 1px 2px rgba(12,27,51,.04), 0 10px 28px -14px rgba(11,79,216,.20);
  --shadow-hover:0 2px 4px rgba(12,27,51,.06), 0 18px 36px -16px rgba(11,79,216,.30);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 24px}}
@media(min-width:1024px){.container{padding:0 32px}}

/* ---------- 导航 ---------- */
.nav-shell{position:sticky;top:0;z-index:60;padding:20px 0 12px;transition:padding .24s ease}
.nav-shell.is-stuck{padding:10px 0 8px}
.nav-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:20px;
  box-shadow:var(--shadow-card);
  padding:10px 18px;
  display:flex;
  align-items:center;
  gap:14px;
  transition:box-shadow .24s ease, padding .24s ease;
}
.nav-shell.is-stuck .nav-card{box-shadow:var(--shadow-hover);padding:6px 18px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),#2F79FF);
  color:#fff;display:grid;place-items:center;font-size:15px;
  box-shadow:0 6px 14px -6px rgba(11,79,216,.6);
}
.brand-text{font-size:17px;font-weight:800;color:var(--title);letter-spacing:.2px}
.nav-links{display:none;align-items:center;gap:8px;margin-left:auto}
.nav-item{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:10px;
  background:#F4F7FC;border:1px solid transparent;
  font-size:15px;color:var(--text);
  transition:background .2s ease,color .2s ease,transform .2s ease,border-color .2s ease;
}
.nav-item i{font-size:14px;color:var(--muted);transition:color .2s ease}
.nav-item:hover{background:var(--primary-50);color:var(--primary);transform:translateY(-1px)}
.nav-item:hover i{color:var(--primary)}
.nav-item.active{background:var(--primary);color:#fff}
.nav-item.active i{color:#fff}
.nav-cta{
  display:none;
  align-items:center;gap:8px;
  background:var(--primary);color:#fff;
  height:40px;padding:0 20px;border-radius:12px;
  font-size:15px;font-weight:600;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
  box-shadow:0 8px 18px -10px rgba(11,79,216,.8);
}
.nav-cta:hover{background:var(--primary-700);transform:translateY(-1px);box-shadow:0 12px 24px -10px rgba(11,79,216,.85)}
.nav-cta:active{transform:translateY(0);box-shadow:0 4px 10px -6px rgba(11,79,216,.7)}
.nav-burger{
  margin-left:auto;width:44px;height:44px;border-radius:12px;
  background:var(--primary-50);color:var(--primary);
  display:grid;place-items:center;font-size:18px;
  transition:background .2s ease;
}
.nav-burger:hover{background:var(--primary-100)}
.nav-drawer{
  position:fixed;inset:0;z-index:80;
  background:rgba(12,27,51,.4);
  opacity:0;pointer-events:none;transition:opacity .24s ease;
}
.nav-drawer.open{opacity:1;pointer-events:auto}
.nav-drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(360px,88%);
  background:#fff;padding:22px 20px 28px;
  display:flex;flex-direction:column;gap:18px;
  transform:translateX(100%);transition:transform .24s ease;
  overflow-y:auto;
}
.nav-drawer.open .nav-drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:40px;height:40px;border-radius:12px;background:#F4F7FC;color:var(--muted);display:grid;place-items:center}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.drawer-item{
  display:flex;flex-direction:column;gap:8px;
  background:#F4F7FC;border:1px solid transparent;border-radius:12px;
  padding:14px 12px;font-size:14px;color:var(--text);
}
.drawer-item i{font-size:18px;color:var(--primary)}
.drawer-item.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.drawer-item.active i{color:#fff}
.drawer-cta{
  margin-top:auto;display:flex;align-items:center;justify-content:center;gap:8px;
  background:var(--primary);color:#fff;height:48px;border-radius:12px;font-weight:600;
}
@media(min-width:1024px){
  .nav-links{display:flex}
  .nav-cta{display:inline-flex}
  .nav-burger{display:none}
}

/* ---------- 通用组件 ---------- */
.section{padding:48px 0}
@media(min-width:1024px){.section{padding:80px 0}}
.section-alt{background:#fff}
.section-tint{background:var(--primary-50)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px;flex-wrap:wrap}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:16px;font-weight:600;color:var(--title);
}
.sec-kicker::before{content:"";width:4px;height:18px;border-radius:3px;background:var(--primary)}
.sec-desc{margin-top:8px;font-size:14px;color:var(--muted);max-width:640px}
.sec-more{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:15px;font-weight:600}
.sec-more i{transition:transform .2s ease}
.sec-more:hover i{transform:translateX(3px)}

.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);
  box-shadow:var(--shadow-card);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.card:hover{border-color:var(--primary-100);box-shadow:var(--shadow-hover);transform:translateY(-2px)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:12px;font-weight:600;transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.btn-primary{background:var(--primary);color:#fff;height:48px;padding:0 24px;box-shadow:0 10px 22px -12px rgba(11,79,216,.85)}
.btn-primary:hover{background:var(--primary-700);transform:translateY(-1px);box-shadow:0 16px 28px -12px rgba(11,79,216,.9)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 12px -8px rgba(11,79,216,.7)}
.btn-ghost{background:#fff;color:var(--primary);border:1px solid var(--primary-100);height:48px;padding:0 22px}
.btn-ghost:hover{background:var(--primary-50)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}

.badge{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;line-height:1}
.badge-accent{background:var(--accent);color:#fff}
.badge-soft{background:var(--accent-50);color:#C64A12}
.badge-success{background:var(--success);color:#fff}
.badge-muted{background:#EDF1F8;color:#5A6A88}
.badge-primary{background:var(--primary-50);color:var(--primary)}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding:8px 0 0;flex-wrap:wrap}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:#B7C3D8}

/* ---------- Hero ---------- */
.hero-banner{position:relative;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);margin-top:20px}
.hero-banner::after{
  content:"";position:absolute;top:-120px;right:-80px;width:420px;height:320px;
  background:rgba(11,79,216,.08);transform:skewX(-18deg);border-radius:40px;pointer-events:none;
}
.hero-grid{position:relative;z-index:1;display:grid;gap:28px;padding:28px 22px}
@media(min-width:768px){.hero-grid{padding:36px 32px}}
@media(min-width:1024px){.hero-grid{grid-template-columns:1.15fr .85fr;align-items:center;gap:40px;padding:48px 44px}}
.hero-tag{display:inline-flex;align-items:center;gap:8px;background:var(--primary-50);color:var(--primary);border-radius:999px;padding:6px 14px;font-size:13px;font-weight:600}
.hero-title{margin-top:16px;font-size:26px;line-height:1.32;font-weight:800;color:var(--title);letter-spacing:-.2px}
@media(min-width:768px){.hero-title{font-size:32px}}
@media(min-width:1024px){.hero-title{font-size:40px}}
.hero-title mark{background:linear-gradient(180deg,transparent 62%,rgba(255,107,44,.28) 62%);color:inherit;padding:0 2px}
.hero-lead{margin-top:14px;font-size:16px;color:var(--muted);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:28px}
.stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 14px;box-shadow:0 1px 2px rgba(12,27,51,.04)}
.stat b{display:block;font-size:22px;font-weight:800;color:var(--title);letter-spacing:-.5px}
.stat span{font-size:13px;color:var(--muted)}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--radius-lg);background:#EEF1F6}
.hero-float{
  position:absolute;right:14px;bottom:-14px;width:210px;background:#fff;border:1px solid var(--line);
  border-radius:16px;box-shadow:var(--shadow-card);padding:14px 16px;
}
.hero-float .hf-title{font-size:13px;color:var(--muted)}
.hero-float .hf-value{font-size:20px;font-weight:800;color:var(--title);margin-top:2px}
.hero-float .bar{height:8px;border-radius:999px;background:var(--line);margin-top:10px;overflow:hidden}
.hero-float .bar i{display:block;height:100%;width:72%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--accent))}

/* ---------- 规则图文交替 ---------- */
.rule-row{display:grid;gap:24px;align-items:center;margin-bottom:28px}
@media(min-width:1024px){
  .rule-row{grid-template-columns:1fr 1fr;gap:48px;margin-bottom:44px}
  .rule-row.reverse .rule-media{order:-1}
}
.rule-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-lg);background:#EEF1F6;box-shadow:var(--shadow-card)}
.rule-num{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:700;color:var(--primary);letter-spacing:1px}
.rule-num span{width:26px;height:26px;border-radius:9px;background:var(--primary-50);display:grid;place-items:center;font-size:12px}
.rule-title{margin-top:12px;font-size:22px;font-weight:700;color:var(--title)}
@media(min-width:768px){.rule-title{font-size:26px}}
.rule-text{margin-top:12px;font-size:15px;color:var(--text)}
.rule-list{margin-top:16px;display:grid;gap:12px}
.rule-list li{display:flex;gap:10px;font-size:14px;color:var(--text)}
.rule-list li i{color:var(--success);margin-top:5px;font-size:13px}

/* ---------- 要点卡 ---------- */
.point-grid{display:grid;gap:16px}
@media(min-width:768px){.point-grid{grid-template-columns:repeat(3,1fr);gap:24px}}
.point-card{padding:22px 20px;position:relative;overflow:hidden}
.point-icon{width:48px;height:48px;border-radius:12px;background:var(--primary-50);color:var(--primary);display:grid;place-items:center;font-size:20px}
.point-card h3{margin-top:16px;font-size:19px;font-weight:700;color:var(--title)}
.point-card p{margin-top:10px;font-size:14px;color:var(--muted)}

/* ---------- 流程条 ---------- */
.flow{display:grid;gap:16px;margin-top:8px}
@media(min-width:768px){.flow{grid-template-columns:repeat(4,1fr);gap:20px;position:relative}}
.flow-card{padding:18px 18px 20px;position:relative}
.flow-step{font-size:12px;font-weight:700;color:var(--primary);letter-spacing:1px}
.flow-card h4{margin-top:6px;font-size:16px;font-weight:600;color:var(--title)}
.flow-card p{margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.7}
.flow-line{display:none}
@media(min-width:1024px){
  .flow-line{display:block;position:absolute;left:12%;right:12%;top:34px;border-top:2px dashed var(--primary-100);z-index:0}
}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow-card);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item.open{border-color:var(--primary-100);box-shadow:var(--shadow-hover)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;text-align:left;
  font-size:16px;font-weight:600;color:var(--title);
}
.faq-q i{color:var(--primary);transition:transform .24s ease;font-size:15px}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:340px}
.faq-a-inner{padding:0 20px 18px;border-left:3px solid var(--primary);margin-left:20px;padding-left:16px;font-size:14.5px;color:var(--muted);line-height:1.9}

/* ---------- 收尾 CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--primary-700),var(--primary));
  border-radius:var(--radius-lg);padding:28px 22px;color:#fff;
  display:grid;gap:20px;align-items:center;
  box-shadow:0 24px 48px -28px rgba(8,58,168,.9);
}
@media(min-width:768px){.cta-band{padding:34px 36px}}
@media(min-width:1024px){.cta-band{grid-template-columns:1fr auto;gap:40px;padding:40px 44px}}
.cta-band h2{font-size:22px;font-weight:800;line-height:1.4}
@media(min-width:768px){.cta-band h2{font-size:26px}}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.86);max-width:620px}
.btn-light{background:#fff;color:var(--primary);height:48px;padding:0 26px}
.btn-light:hover{background:var(--primary-50);transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(0,0,0,.5)}
.btn-light:active{transform:translateY(0)}

/* ---------- 页脚 ---------- */
.site-footer{background:#0C1B33;color:#C7D2E4;margin-top:56px;padding:52px 0 24px}
.foot-grid{display:grid;gap:32px}
@media(min-width:640px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.foot-grid{grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px}}
.foot-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;margin-bottom:14px}
.foot-brand .brand-mark{background:linear-gradient(135deg,var(--primary),#2F79FF)}
.foot-about{font-size:14px;line-height:1.85;color:#C7D2E4;max-width:380px}
.foot-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px}
.foot-links{display:flex;flex-direction:column;gap:10px;font-size:14px}
.foot-links a{display:inline-block;transition:color .2s ease}
.foot-links a:hover{color:#fff;border-bottom:2px solid var(--primary)}
.foot-info{display:flex;flex-direction:column;gap:10px;font-size:14px}
.foot-info i{color:var(--accent);margin-right:8px}
.foot-bottom{
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  border-top:1px solid rgba(199,210,228,.18);margin-top:36px;padding-top:20px;
  font-size:13px;color:#8FA1BF;
}
@media(max-width:520px){
  .hero-stats{grid-template-columns:1fr;}
  .hero-float{position:static;width:100%;margin-top:14px}
  .brand-text{font-size:15px}
  .rule-title{font-size:20px}
}

/* roulang page: article */
:root{
    --primary:#0B4FD8;
    --primary-700:#083AA8;
    --primary-50:#EEF4FF;
    --primary-100:#DCE7FF;
    --accent:#FF6B2C;
    --accent-50:#FFF1E8;
    --accent-strong:#C1440E;
    --success:#12A06A;
    --warn:#E8A317;
    --bg:#F4F7FC;
    --card:#FFFFFF;
    --line:#E4EAF4;
    --text:#33415C;
    --muted:#6B7A96;
    --ink:#0C1B33;
    --radius-lg:24px;
    --radius-md:16px;
    --radius-sm:12px;
    --shadow-card:0 1px 2px rgba(12,27,51,.04), 0 10px 28px -14px rgba(11,79,216,.20);
    --shadow-hover:0 2px 4px rgba(12,27,51,.06), 0 18px 36px -16px rgba(11,79,216,.30);
    --ease:cubic-bezier(.4,0,.2,1);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.75;
    font-variant-numeric:tabular-nums;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;}
  button{font-family:inherit;}
  h1,h2,h3,h4,p{margin:0;}

  a:focus-visible,
  button:focus-visible{
    outline:2px solid var(--primary);
    outline-offset:2px;
    border-radius:6px;
  }

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding:0 20px;
  }
  @media (min-width:768px){ .container{padding:0 24px;} }
  @media (min-width:1024px){ .container{padding:0 32px;} }

  /* ============ 顶部导航（卡片化面板） ============ */
  .site-header{
    position:sticky;
    top:0;
    z-index:50;
    padding:16px 0 12px;
    background:rgba(244,247,252,.92);
    backdrop-filter:blur(8px);
    transition:padding .24s var(--ease);
  }
  .nav-card{
    display:flex;
    align-items:center;
    gap:16px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:20px;
    padding:10px 20px;
    box-shadow:var(--shadow-card);
    transition:box-shadow .24s var(--ease), padding .24s var(--ease);
  }
  .site-header.is-scrolled .nav-card{
    padding-top:6px;
    padding-bottom:6px;
    box-shadow:0 2px 4px rgba(12,27,51,.06), 0 16px 30px -18px rgba(11,79,216,.45);
  }
  .brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    text-decoration:none;
    flex-shrink:0;
  }
  .brand-mark{
    width:32px;
    height:32px;
    border-radius:9px;
    background:linear-gradient(135deg,var(--primary),#2E7BFF);
    color:#fff;
    display:grid;
    place-items:center;
    font-size:14px;
    box-shadow:0 6px 14px -8px rgba(11,79,216,.9);
  }
  .brand-text{
    font-size:17px;
    font-weight:800;
    color:var(--ink);
    letter-spacing:.2px;
    white-space:nowrap;
  }
  .nav-links{
    display:flex;
    align-items:center;
    gap:8px;
    margin-left:8px;
    flex:1;
    min-width:0;
  }
  .nav-item{
    display:inline-flex;
    align-items:center;
    gap:7px;
    padding:8px 12px;
    border-radius:10px;
    background:#F4F7FC;
    color:var(--text);
    font-size:15px;
    font-weight:500;
    text-decoration:none;
    white-space:nowrap;
    transition:background .18s var(--ease), color .18s var(--ease), transform .18s var(--ease);
  }
  .nav-item i{font-size:14px;color:var(--muted);transition:color .18s var(--ease);}
  .nav-item:hover{background:var(--primary-50);color:var(--primary);transform:translateY(-1px);}
  .nav-item:hover i{color:var(--primary);}
  .nav-item.active{background:var(--primary);color:#fff;}
  .nav-item.active i{color:#fff;}
  .nav-cta{flex-shrink:0;}
  .nav-toggle{
    display:none;
    width:40px;
    height:40px;
    border:1px solid var(--line);
    border-radius:12px;
    background:#F4F7FC;
    color:var(--primary);
    font-size:16px;
    align-items:center;
    justify-content:center;
    cursor:pointer;
    transition:background .18s var(--ease);
  }
  .nav-toggle:hover{background:var(--primary-50);}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:40px;
    padding:0 20px;
    border-radius:12px;
    border:1px solid transparent;
    font-size:15px;
    font-weight:600;
    text-decoration:none;
    cursor:pointer;
    transition:background .2s var(--ease), color .2s var(--ease), transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
  }
  .btn-primary{
    background:var(--primary);
    color:#fff;
    box-shadow:0 6px 16px -8px rgba(11,79,216,.55);
  }
  .btn-primary:hover{
    background:var(--primary-700);
    transform:translateY(-1px);
    box-shadow:0 12px 24px -10px rgba(11,79,216,.65);
  }
  .btn-primary:active{transform:translateY(0);box-shadow:0 4px 10px -6px rgba(11,79,216,.5);}
  .btn-ghost{
    background:#fff;
    border-color:var(--primary-100);
    color:var(--primary);
  }
  .btn-ghost:hover{background:var(--primary-50);transform:translateY(-1px);}
  .btn-ghost:active{transform:translateY(0);}
  .btn-lg{height:48px;padding:0 26px;font-size:16px;}
  .btn-block{width:100%;}
  .btn-link{
    display:inline-flex;
    align-items:center;
    gap:6px;
    color:var(--primary);
    font-weight:600;
    font-size:15px;
    text-decoration:none;
  }
  .btn-link i{transition:transform .2s var(--ease);}
  .btn-link:hover i{transform:translateX(3px);}

  /* ============ 徽章 / 标签 ============ */
  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    height:24px;
    padding:0 10px;
    border-radius:999px;
    font-size:12px;
    font-weight:600;
    line-height:1;
    white-space:nowrap;
  }
  .badge-primary{background:var(--primary-50);color:var(--primary);}
  .badge-accent{background:var(--accent-50);color:var(--accent-strong);}
  .badge-success{background:rgba(18,160,106,.12);color:var(--success);}

  /* ============ 移动抽屉 ============ */
  .drawer-mask{
    position:fixed;
    inset:0;
    background:rgba(12,27,51,.4);
    opacity:0;
    pointer-events:none;
    transition:opacity .24s var(--ease);
    z-index:60;
  }
  .drawer-mask.open{opacity:1;pointer-events:auto;}
  .mobile-drawer{
    position:fixed;
    top:0;
    right:0;
    height:100%;
    width:min(86vw,360px);
    background:#fff;
    z-index:70;
    transform:translateX(100%);
    transition:transform .24s var(--ease);
    display:flex;
    flex-direction:column;
    padding:20px;
    overflow-y:auto;
  }
  .mobile-drawer.open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
  .drawer-close{
    width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:#F4F7FC;
    color:var(--text);display:grid;place-items:center;cursor:pointer;transition:background .18s var(--ease);
  }
  .drawer-close:hover{background:var(--primary-50);color:var(--primary);}
  .drawer-hint{font-size:13px;color:var(--muted);margin-bottom:12px;}
  .drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:20px;}
  .drawer-tile{
    display:flex;flex-direction:column;gap:8px;
    padding:14px 12px;border-radius:14px;background:#F4F7FC;border:1px solid var(--line);
    text-decoration:none;color:var(--text);font-size:13px;font-weight:600;
    transition:background .18s var(--ease), border-color .18s var(--ease), transform .18s var(--ease);
  }
  .drawer-tile i{font-size:18px;color:var(--primary);}
  .drawer-tile:hover{background:var(--primary-50);border-color:var(--primary-100);transform:translateY(-1px);}
  .drawer-tile.active{background:var(--primary);border-color:var(--primary);color:#fff;}
  .drawer-tile.active i{color:#fff;}
  .drawer-foot{margin-top:auto;padding-top:16px;}

  /* ============ 面包屑 ============ */
  .crumbs{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:8px;
    font-size:13px;
    color:var(--muted);
    padding:20px 0 16px;
  }
  .crumbs a{color:var(--muted);text-decoration:none;transition:color .18s var(--ease);}
  .crumbs a:hover{color:var(--primary);}
  .crumbs .sep{color:#C3CCDD;}
  .crumbs .current{color:var(--text);font-weight:500;max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

  /* ============ 文章布局 ============ */
  .article-wrap{
    display:grid;
    grid-template-columns:minmax(0,1fr) 300px;
    gap:32px;
    align-items:start;
  }
  .article-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow-card);
    padding:32px;
    min-width:0;
  }
  .article-head{border-bottom:1px solid var(--line);padding-bottom:24px;margin-bottom:8px;}
  .article-meta{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:12px;
    font-size:13px;
    color:var(--muted);
    margin-bottom:16px;
  }
  .article-meta span{display:inline-flex;align-items:center;gap:6px;}
  .article-title{
    font-size:32px;
    line-height:1.35;
    font-weight:800;
    color:var(--ink);
    letter-spacing:-.2px;
    margin-bottom:14px;
    overflow-wrap:anywhere;
  }
  .article-lead{
    font-size:15px;
    line-height:1.85;
    color:var(--muted);
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
  }

  /* ============ 正文排版 ============ */
  .prose-zh{
    max-width:780px;
    font-size:16px;
    line-height:1.9;
    color:var(--text);
    padding-top:32px;
    padding-bottom:32px;
  }
  .prose-zh h2{
    position:relative;
    font-size:24px;
    line-height:1.5;
    font-weight:700;
    color:var(--ink);
    margin:40px 0 16px;
    padding-left:16px;
  }
  .prose-zh h2::before{
    content:"";
    position:absolute;
    left:0;
    top:.25em;
    width:4px;
    height:1em;
    border-radius:2px;
    background:var(--primary);
  }
  .prose-zh h3{
    font-size:19px;
    line-height:1.55;
    font-weight:700;
    color:var(--ink);
    margin:28px 0 12px;
  }
  .prose-zh h4{
    font-size:16px;
    font-weight:600;
    color:var(--ink);
    margin:22px 0 10px;
  }
  .prose-zh p{margin:0 0 1.25em;}
  .prose-zh ul,.prose-zh ol{margin:0 0 1.25em;padding-left:1.4em;}
  .prose-zh li{margin:0 0 .5em;}
  .prose-zh ul li::marker{color:var(--primary);}
  .prose-zh ol li::marker{color:var(--primary);font-weight:600;}
  .prose-zh blockquote{
    background:var(--primary-50);
    border-left:4px solid var(--primary);
    border-radius:12px;
    padding:16px 20px;
    margin:0 0 1.25em;
    color:#2A3A5C;
  }
  .prose-zh blockquote p:last-child{margin-bottom:0;}
  .prose-zh img{
    max-width:100%;
    height:auto;
    border-radius:16px;
    margin:24px auto;
    background:#EEF1F6;
  }
  .prose-zh figure{margin:24px 0;}
  .prose-zh figcaption{
    font-size:13px;
    color:var(--muted);
    text-align:center;
    margin-top:8px;
  }
  .prose-zh table{
    width:100%;
    border-collapse:separate;
    border-spacing:0;
    border:1px solid var(--line);
    border-radius:14px;
    overflow:hidden;
    margin:0 0 1.5em;
    font-size:15px;
  }
  .prose-zh thead th{
    background:var(--primary-50);
    color:var(--ink);
    font-weight:600;
  }
  .prose-zh th,.prose-zh td{
    padding:12px 14px;
    border-bottom:1px solid var(--line);
    text-align:left;
    vertical-align:top;
  }
  .prose-zh tbody tr:nth-child(even){background:#FAFCFF;}
  .prose-zh tbody tr:last-child td{border-bottom:none;}
  .prose-zh a{
    color:var(--primary);
    text-decoration:underline;
    text-underline-offset:3px;
  }
  .prose-zh a:hover{color:var(--primary-700);}
  .prose-zh hr{border:none;border-top:1px dashed var(--line);margin:32px 0;}

  /* ============ 空态 ============ */
  .empty-state{
    border:2px dashed var(--primary-100);
    border-radius:var(--radius-md);
    background:var(--primary-50);
    padding:40px 24px;
    text-align:center;
  }
  .empty-state i{font-size:28px;color:rgba(11,79,216,.4);}
  .empty-state p{margin:12px 0 20px;font-size:15px;color:var(--text);}

  /* ============ 标签行 ============ */
  .tag-row{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:10px;
    border-top:1px solid var(--line);
    padding-top:20px;
    margin-top:8px;
  }
  .tag-row .tag-label{font-size:13px;color:var(--muted);}
  .tag{
    display:inline-flex;
    align-items:center;
    height:28px;
    padding:0 12px;
    border-radius:999px;
    background:#F4F7FC;
    border:1px solid var(--line);
    font-size:13px;
    color:var(--text);
    text-decoration:none;
    transition:background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
  }
  .tag:hover{background:var(--primary-50);border-color:var(--primary-100);color:var(--primary);}

  /* ============ 侧栏 ============ */
  .article-side{min-width:0;}
  .side-sticky{position:sticky;top:96px;}
  .side-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:18px;
    box-shadow:var(--shadow-card);
    padding:20px;
    margin-bottom:20px;
  }
  .side-title{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:15px;
    font-weight:600;
    color:var(--ink);
    margin-bottom:14px;
  }
  .side-title::before{
    content:"";
    width:3px;
    height:14px;
    border-radius:2px;
    background:var(--primary);
  }
  .toc a{
    display:block;
    padding:8px 10px;
    border-radius:10px;
    border-left:2px solid transparent;
    font-size:14px;
    line-height:1.6;
    color:var(--muted);
    text-decoration:none;
    transition:background .18s var(--ease), color .18s var(--ease);
  }
  .toc a:hover{color:var(--primary);background:var(--primary-50);}
  .toc a.active{color:var(--primary);font-weight:600;background:var(--primary-50);border-left-color:var(--primary);}
  .toc-empty{font-size:13px;color:var(--muted);}
  .hot-item{
    display:flex;
    gap:10px;
    padding:10px 0;
    border-bottom:1px dashed var(--line);
    text-decoration:none;
  }
  .hot-item:last-child{border-bottom:none;padding-bottom:0;}
  .hot-index{
    flex-shrink:0;
    width:20px;
    height:20px;
    border-radius:6px;
    background:var(--primary-50);
    color:var(--primary);
    font-size:12px;
    font-weight:700;
    display:grid;
    place-items:center;
    margin-top:2px;
  }
  .hot-text{font-size:14px;line-height:1.6;color:var(--text);transition:color .18s var(--ease);}
  .hot-item:hover .hot-text{color:var(--primary);}
  .side-cta{
    background:var(--primary-50);
    border:1px solid var(--primary-100);
    border-radius:18px;
    padding:20px;
  }
  .side-cta p{font-size:14px;line-height:1.7;color:var(--text);margin-bottom:14px;}

  /* ============ 相关推荐 ============ */
  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:16px;
    margin:48px 0 20px;
  }
  .section-head h2{
    font-size:22px;
    font-weight:700;
    color:var(--ink);
    display:flex;
    align-items:center;
    gap:10px;
  }
  .section-head h2::before{
    content:"";
    width:4px;
    height:18px;
    border-radius:2px;
    background:var(--primary);
  }
  .related-grid{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:24px;
  }
  .rel-card{
    display:flex;
    flex-direction:column;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-md);
    box-shadow:var(--shadow-card);
    overflow:hidden;
    text-decoration:none;
    transition:transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
  }
  .rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--primary-100);}
  .rel-thumb{aspect-ratio:16/9;overflow:hidden;background:#EEF1F6;}
  .rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
  .rel-card:hover .rel-thumb img{transform:scale(1.04);}
  .rel-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:10px;flex:1;}
  .rel-title{font-size:17px;font-weight:700;line-height:1.55;color:var(--ink);transition:color .18s var(--ease);}
  .rel-card:hover .rel-title{color:var(--primary);}
  .rel-desc{font-size:14px;line-height:1.7;color:var(--muted);}
  .rel-foot{
    margin-top:auto;
    display:flex;
    align-items:center;
    justify-content:space-between;
    font-size:13px;
    color:var(--muted);
  }
  .rel-foot i{color:var(--primary);transition:transform .2s var(--ease);}
  .rel-card:hover .rel-foot i{transform:translateX(3px);}

  .back-row{display:flex;justify-content:flex-start;margin-top:32px;}

  /* ============ 收尾 CTA ============ */
  .cta-band{
    margin-top:64px;
    background:var(--primary-700);
    border-radius:var(--radius-lg);
    padding:36px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
    flex-wrap:wrap;
    box-shadow:0 24px 48px -28px rgba(8,58,168,.8);
  }
  .cta-band h2{
    font-size:24px;
    font-weight:700;
    color:#fff;
    line-height:1.45;
    margin-bottom:8px;
  }
  .cta-band p{font-size:14px;color:#C9DAFF;line-height:1.7;}
  .cta-band .btn{
    background:#fff;
    color:var(--primary-700);
    border-color:#fff;
    flex-shrink:0;
  }
  .cta-band .btn:hover{background:var(--primary-50);transform:translateY(-1px);box-shadow:0 12px 24px -12px rgba(0,0,0,.5);}

  /* ============ 页脚 ============ */
  .site-footer{
    margin-top:64px;
    background:#0C1B33;
    color:#C7D2E4;
    padding:48px 0 24px;
  }
  .foot-grid{
    display:grid;
    grid-template-columns:1.6fr 1fr 1fr 1.2fr;
    gap:32px;
  }
  .foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .foot-about{font-size:14px;line-height:1.9;color:#93A3BE;}
  .foot-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px;}
  .foot-links{display:flex;flex-direction:column;gap:10px;}
  .foot-links a{
    font-size:14px;
    color:#C7D2E4;
    text-decoration:none;
    border-bottom:2px solid transparent;
    width:fit-content;
    transition:color .18s var(--ease), border-color .18s var(--ease);
  }
  .foot-links a:hover{color:#fff;border-bottom-color:var(--primary);}
  .foot-info{display:flex;flex-direction:column;gap:10px;font-size:14px;}
  .foot-info span{display:flex;align-items:center;gap:8px;color:#C7D2E4;}
  .foot-info i{color:#7D93B8;}
  .foot-bottom{
    margin-top:32px;
    padding-top:20px;
    border-top:1px solid rgba(255,255,255,.12);
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:8px;
    flex-wrap:wrap;
    font-size:13px;
    color:#8DA0BF;
  }

  /* ============ 响应式 ============ */
  @media (max-width:1023px){
    .nav-links,.nav-cta{display:none;}
    .nav-card{padding:10px 16px;}
    .nav-toggle{display:flex;}
    .article-wrap{grid-template-columns:minmax(0,1fr);gap:24px;}
    .side-sticky{position:static;}
    .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
  }
  @media (max-width:767px){
    .article-card{padding:22px;}
    .article-title{font-size:26px;}
    .crumbs{padding:16px 0 12px;}
    .crumbs .current{max-width:45%;}
    .prose-zh{padding-top:24px;padding-bottom:24px;}
    .cta-band{padding:26px 22px;}
    .cta-band h2{font-size:20px;}
    .related-grid{grid-template-columns:minmax(0,1fr);gap:16px;}
    .section-head{margin:36px 0 16px;}
    .foot-bottom{flex-direction:column;align-items:flex-start;}
  }
  @media (max-width:520px){
    .brand-text{font-size:15px;}
    .article-title{font-size:23px;}
    .prose-zh{font-size:15.5px;}
    .prose-zh h2{font-size:20px;}
    .prose-zh h3{font-size:17px;}
    .foot-grid{grid-template-columns:1fr;gap:24px;}
  }

/* roulang page: category2 */
:root{
  --primary:#0B4FD8;
  --primary-700:#083AA8;
  --primary-50:#EEF4FF;
  --primary-100:#DCE7FF;
  --accent:#FF6B2C;
  --accent-50:#FFF1E8;
  --success:#12A06A;
  --warn:#E8A317;
  --bg:#F4F7FC;
  --card:#FFFFFF;
  --line:#E4EAF4;
  --text:#33415C;
  --muted:#6B7A96;
  --heading:#0C1B33;
  --r-xl:24px;
  --r-lg:18px;
  --r-md:16px;
  --r-sm:12px;
  --shadow:0 1px 2px rgba(12,27,51,.04), 0 10px 28px -14px rgba(11,79,216,.20);
  --shadow-hover:0 2px 4px rgba(12,27,51,.05), 0 18px 38px -16px rgba(11,79,216,.30);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  font-variant-numeric:tabular-nums;
  -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;transition:color .2s var(--ease)}
img{display:block;max-width:100%;height:auto;background:#EEF1F6}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4{color:var(--heading);font-weight:700;line-height:1.32}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 24px}}
@media (min-width:1280px){.container{padding:0 32px}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  padding:14px 0 6px;
  background:linear-gradient(180deg,rgba(244,247,252,.97),rgba(244,247,252,.72));
  backdrop-filter:blur(10px);
  transition:padding .24s var(--ease);
}
.site-header.is-stuck{padding:8px 0 4px}
.nav-card{
  display:flex;align-items:center;gap:20px;
  background:#fff;border:1px solid var(--line);border-radius:20px;
  padding:12px 20px;box-shadow:var(--shadow);
  transition:padding .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-stuck .nav-card{padding:8px 20px;box-shadow:var(--shadow-hover)}
.brand{display:flex;align-items:center;gap:10px;margin-right:auto;min-width:0}
.brand-mark{
  width:32px;height:32px;flex:0 0 auto;border-radius:10px;
  background:var(--primary);color:#fff;display:grid;place-items:center;
  font-size:15px;box-shadow:0 8px 16px -10px rgba(11,79,216,.9);
}
.brand-text{font-size:18px;font-weight:800;color:var(--heading);letter-spacing:.2px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:8px}
.nav-item{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 14px;border-radius:10px;background:#F4F7FC;
  font-size:15px;font-weight:500;color:var(--text);white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.nav-item i{font-size:14px;color:var(--primary);transition:color .2s var(--ease)}
.nav-item:hover{background:var(--primary-50);color:var(--primary);transform:translateY(-1px)}
.nav-item.active{background:var(--primary);color:#fff;box-shadow:0 10px 20px -14px rgba(11,79,216,.95)}
.nav-item.active i{color:#fff}
.nav-right{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:#F4F7FC;color:var(--primary);font-size:18px;
  place-items:center;transition:background .2s var(--ease);
}
.nav-toggle:hover{background:var(--primary-50)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(12,27,51,.4);
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);z-index:70;
}
.drawer-mask.open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;top:0;left:0;right:0;z-index:80;background:#fff;
  transform:translateY(-102%);transition:transform .24s var(--ease);
  padding:22px 20px 28px;max-height:100vh;overflow:auto;
  border-radius:0 0 24px 24px;box-shadow:var(--shadow-hover);
  display:flex;flex-direction:column;gap:18px;
}
.nav-drawer.open{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{width:40px;height:40px;border-radius:12px;background:#F4F7FC;color:var(--heading);display:grid;place-items:center;font-size:16px}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.drawer-grid .nav-item{justify-content:flex-start;padding:14px 12px}
.drawer-grid .nav-item span{font-size:14px}
.btn-block{width:100%;justify-content:center}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-right .btn{display:none}
  .nav-toggle{display:grid}
}
@media (min-width:1024px){
  .nav-drawer,.drawer-mask{display:none}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:12px;
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-lg{height:50px;padding:0 28px;font-size:16px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 22px -14px rgba(11,79,216,.95)}
.btn-primary:hover{background:var(--primary-700);transform:translateY(-1px);box-shadow:0 16px 28px -14px rgba(11,79,216,1)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px -12px rgba(11,79,216,.9)}
.btn-ghost{background:#fff;color:var(--primary);border:1px solid var(--primary-100);box-shadow:var(--shadow)}
.btn-ghost:hover{background:var(--primary-50);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-light{background:#fff;color:var(--primary-700)}
.btn-light:hover{background:var(--primary-50);transform:translateY(-1px)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:14px;font-weight:600;
}
.link-arrow i{font-size:12px;transition:transform .2s var(--ease)}
.link-arrow:hover i{transform:translateX(3px)}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:5px;
  height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1;
}
.badge-claim{background:var(--accent);color:#fff}
.badge-done{background:var(--success);color:#fff}
.badge-lock{background:#E9EEF7;color:#5B6B88}

/* ============ 卡片 ============ */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
}
.card:hover{border-color:var(--primary-100);box-shadow:var(--shadow-hover);transform:translateY(-2px)}

/* ============ 区块 ============ */
.section{padding:48px 0}
@media (min-width:1024px){.section{padding:80px 0}}
.section-alt{background:#fff}
.section-tint{background:var(--primary-50)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:28px}
.sec-tag{display:inline-flex;align-items:center;gap:8px;font-size:16px;font-weight:600;color:var(--heading)}
.sec-tag::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--primary)}
.sec-title{font-size:26px;font-weight:700;margin-top:10px}
.sec-desc{font-size:15px;color:var(--muted);max-width:660px;margin-top:10px}
.section-tint .sec-desc{color:#4C5C7A}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:52px 0 56px}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.16;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(255,255,255,.92) 0%,rgba(244,247,252,.96) 62%,#F4F7FC 100%);
}
.hero .container{position:relative;z-index:1}
.hero-inner{text-align:center;max-width:860px;margin:0 auto}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--primary-100);color:var(--primary);
  font-size:13px;font-weight:600;box-shadow:var(--shadow);
}
.hero h1{font-size:26px;line-height:1.34;font-weight:800;margin-top:20px;letter-spacing:-.2px}
.hero-sub{font-size:16px;color:var(--muted);margin-top:14px;line-height:1.8}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:26px}
.chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:30px}
.chip{
  padding:9px 18px;border-radius:999px;background:#fff;
  border:1px solid var(--line);font-size:14px;font-weight:500;color:var(--text);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.chip:hover{border-color:var(--primary-100);background:var(--primary-50);color:var(--primary);transform:translateY(-1px)}
.chip.is-active{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 10px 20px -14px rgba(11,79,216,.95)}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;max-width:600px;margin:32px auto 0}
.stat{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:14px 16px;text-align:left;box-shadow:var(--shadow);
}
.stat b{display:block;font-size:24px;font-weight:800;color:var(--heading);line-height:1.2}
.stat span{font-size:13px;color:var(--muted)}
@media (min-width:768px){
  .hero{padding:64px 0 72px}
  .hero h1{font-size:32px;line-height:1.34}
  .hero-sub{font-size:17px}
}
@media (max-width:520px){
  .stat-row{grid-template-columns:1fr}
  .stat{display:flex;align-items:baseline;gap:10px}
  .stat b{font-size:20px}
}

/* ============ 奖励卡网格 ============ */
.reward-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:640px){.reward-grid{grid-template-columns:repeat(2,1fr);gap:20px}}
@media (min-width:1024px){.reward-grid{grid-template-columns:repeat(4,1fr);gap:24px}}
.reward-card{display:flex;flex-direction:column;overflow:hidden;border-radius:var(--r-md)}
.reward-media{position:relative;aspect-ratio:4/3;overflow:hidden;background:#EEF1F6}
.reward-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.reward-card:hover .reward-media img{transform:scale(1.04)}
.reward-media .badge{position:absolute;top:12px;right:12px;box-shadow:0 6px 14px -8px rgba(12,27,51,.5)}
.reward-body{padding:16px 16px 18px;display:flex;flex-direction:column;gap:10px;flex:1}
.reward-body h3{font-size:17px;font-weight:700}
.reward-body p{font-size:14px;color:var(--muted);line-height:1.7;flex:1}
.reward-foot{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding-top:12px;border-top:1px solid var(--line);
}
.reward-foot .pt{font-size:14px;font-weight:700;color:var(--accent)}
.reward-foot .pt i{font-size:12px;margin-right:4px}
.empty-note{
  display:none;border:1px dashed var(--primary-100);border-radius:var(--r-lg);
  padding:36px 20px;text-align:center;color:var(--muted);font-size:14px;background:#fff;
}
.empty-note i{display:block;font-size:26px;color:rgba(11,79,216,.35);margin-bottom:10px}

/* ============ 阶梯进度 ============ */
.ladder-wrap{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:1024px){.ladder-wrap{grid-template-columns:1fr 300px;gap:28px;align-items:start}}
.ladder{position:relative;display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:768px){.ladder{grid-template-columns:repeat(3,1fr);gap:20px}}
.ladder-step{position:relative;padding-top:28px}
.ladder-step::before{
  content:"";position:absolute;left:0;right:0;top:9px;height:2px;background:var(--line);
}
.ladder-step:first-child::before{left:12px}
.ladder-step:last-child::before{right:12px}
.ladder-node{
  position:absolute;top:2px;left:0;width:16px;height:16px;border-radius:50%;
  background:#fff;border:2px solid var(--line);
}
.ladder-step.done .ladder-node{background:var(--primary);border-color:var(--primary);box-shadow:0 0 0 4px var(--primary-50)}
.ladder-step.current .ladder-node{
  background:#fff;border-color:var(--primary);
  animation:pulse 2.4s ease-out infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(11,79,216,.35)}
  70%{box-shadow:0 0 0 12px rgba(11,79,216,0)}
  100%{box-shadow:0 0 0 0 rgba(11,79,216,0)}
}
.ladder-card{padding:18px;border-radius:var(--r-md)}
.ladder-card .thr{font-size:24px;font-weight:800;color:var(--heading);line-height:1.2}
.ladder-card .thr small{font-size:13px;font-weight:600;color:var(--muted);margin-left:4px}
.ladder-card h3{font-size:17px;margin-top:8px}
.ladder-card p{font-size:14px;color:var(--muted);margin-top:8px;line-height:1.7}
.ladder-state{margin-top:12px;font-size:13px;font-weight:600}
.ladder-step.done .ladder-state{color:var(--success)}
.ladder-step.current .ladder-state{color:var(--primary)}
.ladder-step.locked .ladder-state{color:var(--muted)}
.bar{margin-top:22px}
.bar-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;font-size:14px;color:var(--muted);margin-bottom:10px}
.bar-head b{font-size:20px;font-weight:700;color:var(--heading)}
.bar-track{height:8px;border-radius:999px;background:var(--line);overflow:hidden}
.bar-fill{
  height:100%;border-radius:999px;
  background:linear-gradient(90deg,var(--primary) 0%,var(--accent) 100%);
  width:0;transition:width .8s var(--ease);
}
.side-card{padding:22px;border-radius:var(--r-md);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
.side-card h3{font-size:17px;margin-bottom:10px}
.side-card p{font-size:14px;color:var(--muted);line-height:1.8}
.side-list{margin-top:14px;display:flex;flex-direction:column;gap:10px}
.side-list li{display:flex;gap:8px;font-size:14px;color:var(--text)}
.side-list i{color:var(--primary);font-size:13px;margin-top:5px}

/* ============ 流程步骤 ============ */
.flow-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:640px){.flow-grid{grid-template-columns:repeat(2,1fr);gap:20px}}
@media (min-width:1024px){.flow-grid{grid-template-columns:repeat(4,1fr);gap:24px}}
.step-card{position:relative;overflow:hidden;padding:24px 20px;border-radius:var(--r-md)}
.step-num{
  position:absolute;top:6px;right:12px;font-size:64px;font-weight:800;
  color:var(--primary-50);line-height:1;pointer-events:none;transition:color .25s var(--ease);
}
.step-card:hover .step-num{color:rgba(11,79,216,.22)}
.step-icon{
  width:44px;height:44px;border-radius:12px;background:var(--primary-50);
  color:var(--primary);display:grid;place-items:center;font-size:18px;margin-bottom:16px;
}
.step-card h3{font-size:17px;position:relative}
.step-card p{font-size:14px;color:var(--muted);margin-top:10px;line-height:1.75;position:relative}

/* ============ FAQ ============ */
.faq{display:flex;flex-direction:column;gap:14px;max-width:900px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--shadow);overflow:hidden;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{border-color:var(--primary-100)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;text-align:left;
  font-size:16px;font-weight:600;color:var(--heading);
}
.faq-q .chev{
  width:26px;height:26px;flex:0 0 auto;border-radius:50%;
  display:grid;place-items:center;background:var(--primary-50);color:var(--primary);font-size:12px;
  transition:transform .24s var(--ease),background .2s var(--ease);
}
.faq-item.open{border-color:var(--primary-100);box-shadow:var(--shadow-hover)}
.faq-item.open .chev{transform:rotate(45deg);background:var(--primary);color:#fff}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .3s var(--ease);
  padding:0 20px;border-left:3px solid transparent;
}
.faq-item.open .faq-a{max-height:360px;border-left-color:var(--primary);padding:0 20px 18px}
.faq-a p{font-size:15px;color:var(--muted);line-height:1.85}

/* ============ 收尾 CTA ============ */
.cta-band{
  background:linear-gradient(135deg,var(--primary-700) 0%,var(--primary) 100%);
  color:#fff;border-radius:var(--r-xl);padding:32px 24px;
  display:flex;flex-direction:column;gap:20px;align-items:flex-start;
  box-shadow:0 24px 48px -30px rgba(8,58,168,1);
}
.cta-band h2{color:#fff;font-size:22px;font-weight:700;line-height:1.45}
.cta-band p{color:rgba(255,255,255,.85);font-size:15px;margin-top:10px;line-height:1.8}
@media (min-width:1024px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:40px 44px;border-radius:24px}
  .cta-band h2{font-size:26px}
  .cta-band .cta-text{max-width:720px}
}

/* ============ 页脚 ============ */
.site-footer{background:#0C1B33;color:#C7D2E4;margin-top:56px;padding:52px 0 22px}
.foot-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:768px){.foot-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.foot-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-brand .brand-text{color:#fff;font-size:16px;font-weight:800}
.foot-about{font-size:14px;color:#9FB0CC;line-height:1.85;max-width:360px}
.foot-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.foot-links{display:flex;flex-direction:column;gap:11px}
.foot-links a{font-size:14px;color:#C7D2E4;border-bottom:2px solid transparent;padding-bottom:2px;width:fit-content}
.foot-links a:hover{color:#fff;border-bottom-color:var(--primary)}
.foot-info{display:flex;flex-direction:column;gap:12px}
.foot-info span{display:flex;gap:9px;font-size:14px;color:#C7D2E4;line-height:1.7}
.foot-info i{color:#7C90B4;font-size:14px;margin-top:5px}
.foot-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#8FA0BD;
}

/* roulang page: category3 */
:root{
  --primary:#0B4FD8;
  --primary-700:#083AA8;
  --primary-50:#EEF4FF;
  --primary-100:#DCE7FF;
  --accent:#FF6B2C;
  --accent-50:#FFF1E8;
  --success:#12A06A;
  --success-50:#E6F7EF;
  --warn:#E8A317;
  --warn-50:#FDF3DC;
  --bg:#F4F7FC;
  --card:#FFFFFF;
  --line:#E4EAF4;
  --text:#33415C;
  --muted:#6B7A96;
  --title:#0C1B33;
  --foot:#0C1B33;
  --r-xl:24px;
  --r-lg:18px;
  --r-md:16px;
  --r-sm:12px;
  --sh-card:0 1px 2px rgba(12,27,51,.04), 0 10px 28px -14px rgba(11,79,216,.20);
  --sh-hover:0 2px 4px rgba(12,27,51,.06), 0 18px 36px -16px rgba(11,79,216,.32);
  --sh-nav:0 2px 6px rgba(12,27,51,.05), 0 16px 32px -20px rgba(12,27,51,.28);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 24px;}}
@media (min-width:1280px){.container{padding:0 32px;}}
.section{padding:56px 0;}
@media (min-width:1024px){.section{padding:80px 0;}.section-lg{padding:96px 0;}}
.bg-white-sec{background:#fff;}
.bg-page-sec{background:var(--bg);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  padding:14px 0 6px;
  background:linear-gradient(180deg,#F4F7FC 62%,rgba(244,247,252,0));
}
.nav-card{
  display:flex;align-items:center;gap:16px;
  background:#fff;border:1px solid var(--line);
  border-radius:20px;padding:12px 16px;
  box-shadow:var(--sh-nav);
  transition:padding .24s ease,box-shadow .24s ease;
}
.site-header.is-stuck .nav-card{
  padding-top:8px;padding-bottom:8px;
  box-shadow:0 4px 10px rgba(12,27,51,.06),0 20px 42px -22px rgba(12,27,51,.36);
}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:32px;height:32px;border-radius:10px;flex:none;
  display:grid;place-items:center;
  background:linear-gradient(135deg,#0B4FD8,#083AA8);
  color:#fff;font-size:15px;
  box-shadow:0 8px 18px -10px rgba(11,79,216,.9);
}
.brand-text{font-size:17px;font-weight:700;color:var(--title);letter-spacing:.2px;white-space:nowrap;}
.nav-links{display:none;align-items:center;gap:8px;flex:1;justify-content:center;}
@media (min-width:1024px){.nav-links{display:flex;}}
.nav-item{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:500;color:var(--text);
  background:#F4F7FC;border-radius:10px;padding:9px 14px;
  transition:background .2s ease,color .2s ease,transform .2s ease;
  white-space:nowrap;
}
.nav-item i{font-size:15px;color:var(--muted);transition:color .2s ease;}
.nav-item:hover{background:var(--primary-50);color:var(--primary);transform:translateY(-1px);}
.nav-item:hover i{color:var(--primary);}
.nav-item.active{background:var(--primary);color:#fff;box-shadow:0 10px 20px -12px rgba(11,79,216,.95);}
.nav-item.active i{color:#fff;}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:none;}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  background:#F4F7FC;color:var(--primary);font-size:17px;
  transition:background .2s ease;
}
.nav-toggle:hover{background:var(--primary-50);}
@media (min-width:1024px){.nav-toggle{display:none;}}

/* 移动抽屉 */
.nav-drawer{position:fixed;inset:0;z-index:90;pointer-events:none;}
.nav-drawer.open{pointer-events:auto;}
.nav-drawer-mask{
  position:absolute;inset:0;background:rgba(12,27,51,.42);
  opacity:0;transition:opacity .24s ease;
}
.nav-drawer.open .nav-drawer-mask{opacity:1;}
.nav-drawer-panel{
  position:absolute;left:0;right:0;top:0;
  background:#fff;border-radius:0 0 24px 24px;
  padding:18px 20px 24px;
  transform:translateY(-14px);opacity:0;
  transition:transform .24s ease,opacity .24s ease;
  box-shadow:0 24px 48px -24px rgba(12,27,51,.5);
}
.nav-drawer.open .nav-drawer-panel{transform:translateY(0);opacity:1;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.drawer-close{
  width:38px;height:38px;border-radius:11px;background:#F4F7FC;
  color:var(--title);font-size:16px;display:grid;place-items:center;
}
.drawer-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:16px;}
.drawer-item{
  display:flex;align-items:center;gap:9px;
  background:#F4F7FC;border-radius:12px;padding:13px 14px;
  font-size:15px;font-weight:500;color:var(--text);
  transition:background .2s ease,color .2s ease;
}
.drawer-item i{color:var(--muted);font-size:15px;}
.drawer-item:hover,.drawer-item.active{background:var(--primary);color:#fff;}
.drawer-item.active i,.drawer-item:hover i{color:#fff;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:12px;
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background .2s ease-out,color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.btn-lg{height:48px;padding:0 28px;font-size:16px;}
.btn-block{width:100%;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 22px -12px rgba(11,79,216,.85);}
.btn-primary:hover{background:var(--primary-700);transform:translateY(-1px);box-shadow:0 16px 30px -12px rgba(11,79,216,.9);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px -10px rgba(11,79,216,.8);}
.btn-ghost{background:#fff;border:1px solid var(--primary-100);color:var(--primary);}
.btn-ghost:hover{background:var(--primary-50);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-white{background:#fff;color:var(--primary-700);box-shadow:0 12px 26px -14px rgba(0,0,0,.5);}
.btn-white:hover{background:#EAF1FF;transform:translateY(-1px);}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--primary);}
.btn-link i{transition:transform .2s ease;}
.btn-link:hover i{transform:translateX(3px);}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;white-space:nowrap;
}
.badge-soft{background:var(--primary-50);color:var(--primary);}
.badge-accent{background:var(--accent-50);color:#C2470E;}
.badge-success{background:var(--success-50);color:#0B7A50;}
.badge-warn{background:var(--warn-50);color:#8F6203;}

/* ============ 首屏 ============ */
.hero-band{position:relative;overflow:hidden;padding:24px 0 56px;}
@media (min-width:1024px){.hero-band{padding:32px 0 84px;}}
.hero-band::before{
  content:"";position:absolute;top:-120px;right:-160px;
  width:620px;height:520px;
  background:rgba(11,79,216,.07);
  transform:skewX(-14deg);
  border-radius:48px;pointer-events:none;
}
.breadcrumb{
  position:relative;display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);margin-bottom:20px;
}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:#B9C6DC;}
.breadcrumb .current{color:var(--title);font-weight:500;}
.hero-inner{position:relative;display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
@media (min-width:1024px){.hero-inner{grid-template-columns:1.05fr .95fr;gap:52px;}}
.hero-copy h1{
  font-size:30px;line-height:1.28;font-weight:800;color:var(--title);
  margin:16px 0 14px;letter-spacing:-.2px;
}
@media (min-width:768px){.hero-copy h1{font-size:38px;}}
@media (min-width:1024px){.hero-copy h1{font-size:40px;}}
.hero-sub{font-size:16px;line-height:1.8;color:var(--muted);max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:30px;max-width:540px;}
.stat-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;box-shadow:var(--sh-card);}
.stat-num{
  display:block;font-size:24px;font-weight:800;color:var(--title);line-height:1.15;
  font-variant-numeric:tabular-nums;
}
.stat-num .unit{font-size:13px;font-weight:600;color:var(--muted);margin-left:3px;}
.stat-label{display:block;font-size:13px;color:var(--muted);margin-top:4px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:16/12;object-fit:cover;
  border-radius:var(--r-xl);background:#EEF1F6;
  box-shadow:0 24px 48px -28px rgba(12,27,51,.45);
}
.float-card{
  position:absolute;right:14px;bottom:14px;
  display:flex;align-items:center;gap:12px;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:12px 16px;box-shadow:var(--sh-hover);
}
.float-card strong{display:block;font-size:14px;color:var(--title);font-weight:600;}
.float-card span.t{display:block;font-size:12px;color:var(--muted);margin-top:2px;}
.pulse-dot{width:10px;height:10px;border-radius:50%;background:var(--success);position:relative;flex:none;}
.pulse-dot::after{
  content:"";position:absolute;inset:-5px;border-radius:50%;
  border:2px solid rgba(18,160,106,.35);
  animation:pulse 2.4s ease-out infinite;
}
@keyframes pulse{0%{transform:scale(.7);opacity:.9;}100%{transform:scale(1.35);opacity:0;}}

/* ============ 板块标题 ============ */
.section-head{margin-bottom:32px;}
.section-head.center{text-align:center;margin-left:auto;margin-right:auto;}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--primary);margin-bottom:10px;
}
.section-kicker::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--primary);}
.section-title{font-size:24px;line-height:1.4;font-weight:700;color:var(--title);margin-bottom:12px;}
@media (min-width:768px){.section-title{font-size:28px;}}
.section-desc{font-size:15px;line-height:1.8;color:var(--muted);max-width:780px;}
.section-head.center .section-desc{margin:0 auto;}

/* ============ 入口卡 ============ */
.entry-grid{display:grid;grid-template-columns:1fr;gap:16px;}
@media (min-width:640px){.entry-grid{grid-template-columns:repeat(2,1fr);gap:20px;}}
@media (min-width:1024px){.entry-grid{grid-template-columns:repeat(3,1fr);gap:24px;}}
.entry-card{
  display:flex;flex-direction:column;gap:12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-card);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.entry-card:hover{transform:translateY(-2px);border-color:var(--primary-100);box-shadow:var(--sh-hover);}
.entry-icon{
  width:48px;height:48px;border-radius:12px;
  background:#F4F7FC;color:var(--primary);
  display:grid;place-items:center;font-size:20px;
}
.entry-card h3{font-size:16px;font-weight:600;color:var(--title);line-height:1.5;}
.entry-card p{font-size:14px;line-height:1.75;color:var(--muted);}
.entry-more{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--primary);margin-top:2px;}
.entry-more i{transition:transform .2s ease;}
.entry-card:hover .entry-more i{transform:translateX(3px);}

/* ============ FAQ 两栏 ============ */
.faq-layout{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:1024px){.faq-layout{grid-template-columns:284px 1fr;gap:36px;align-items:start;}}
.faq-side{display:flex;flex-direction:column;gap:16px;}
.anchor-list{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:18px;box-shadow:var(--sh-card);
  display:grid;grid-template-columns:repeat(2,1fr);gap:8px;
}
@media (min-width:1024px){
  .anchor-list{position:sticky;top:106px;grid-template-columns:1fr;gap:8px;}
}
.anchor-title{grid-column:1/-1;font-size:13px;font-weight:600;color:var(--muted);padding:0 6px 6px;letter-spacing:.4px;}
.anchor-item{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:12px;
  font-size:14px;font-weight:500;color:var(--text);
  transition:background .2s ease,color .2s ease;
}
.anchor-item .num{
  width:22px;height:22px;border-radius:50%;flex:none;
  background:#F4F7FC;color:var(--muted);
  display:grid;place-items:center;font-size:12px;font-weight:600;
  transition:background .2s ease,color .2s ease;
}
.anchor-item:hover{background:var(--primary-50);color:var(--primary);}
.anchor-item.active{background:var(--primary-50);color:var(--primary);font-weight:600;}
.anchor-item.active .num{background:var(--primary);color:#fff;}
.side-help-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-card);
  display:flex;flex-direction:column;gap:10px;align-items:flex-start;
}
.side-help-card i.ico{font-size:22px;color:var(--accent);}
.side-help-card strong{font-size:16px;font-weight:600;color:var(--title);}
.side-help-card p{font-size:14px;line-height:1.75;color:var(--muted);}
.faq-group{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:8px 20px;box-shadow:var(--sh-card);margin-bottom:20px;
  scroll-margin-top:110px;
}
.faq-group:last-child{margin-bottom:0;}
.faq-group-head{display:flex;align-items:center;gap:10px;padding:14px 4px 12px;border-bottom:1px solid var(--line);}
.faq-group-head h3{font-size:17px;font-weight:700;color:var(--title);line-height:1.5;}
.faq-group-head .idx{
  width:26px;height:26px;border-radius:9px;flex:none;
  background:var(--primary-50);color:var(--primary);
  display:grid;place-items:center;font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  position:relative;width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 4px 14px 14px;text-align:left;
  font-size:16px;font-weight:600;color:var(--title);line-height:1.6;
  transition:color .2s ease;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:2px;
  background:var(--primary);opacity:0;transition:opacity .2s ease;
}
.faq-item.open .faq-q::before{opacity:1;}
.faq-item.open .faq-q{color:var(--primary);}
.faq-sign{
  flex:none;width:26px;height:26px;border-radius:50%;
  background:var(--primary-50);color:var(--primary);
  display:grid;place-items:center;font-size:12px;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.faq-item.open .faq-sign{background:var(--primary);color:#fff;transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a-inner{padding:0 44px 20px 14px;font-size:15px;line-height:1.85;color:var(--text);}

/* ============ 三步流程 ============ */
.step-grid{display:grid;grid-template-columns:1fr;gap:16px;position:relative;}
@media (min-width:768px){.step-grid{grid-template-columns:repeat(3,1fr);gap:24px;}}
.step-card{
  position:relative;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 22px;box-shadow:var(--sh-card);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.step-card:hover{transform:translateY(-2px);border-color:var(--primary-100);box-shadow:var(--sh-hover);}
.step-card .water{
  position:absolute;top:8px;right:16px;
  font-size:64px;font-weight:800;line-height:1;
  color:var(--primary-50);font-variant-numeric:tabular-nums;
  transition:color .2s ease;
}
.step-card:hover .water{color:rgba(11,79,216,.2);}
.step-card .step-icon{
  width:40px;height:40px;border-radius:12px;
  background:var(--primary-50);color:var(--primary);
  display:grid;place-items:center;font-size:17px;margin-bottom:14px;
}
.step-card h3{font-size:17px;font-weight:700;color:var(--title);margin-bottom:8px;}
.step-card p{font-size:14px;line-height:1.8;color:var(--muted);}

/* ============ 支持渠道 ============ */
.support-layout{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:1024px){.support-layout{grid-template-columns:1.15fr .85fr;gap:32px;align-items:start;}}
.channel-list{display:grid;grid-template-columns:1fr;gap:16px;}
.channel-card{
  display:flex;gap:16px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-card);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.channel-card:hover{transform:translateY(-2px);border-color:var(--primary-100);box-shadow:var(--sh-hover);}
.channel-icon{
  width:48px;height:48px;border-radius:12px;flex:none;
  background:var(--primary-50);color:var(--primary);
  display:grid;place-items:center;font-size:19px;
}
.channel-card h3{font-size:16px;font-weight:600;color:var(--title);margin-bottom:6px;}
.channel-card p{font-size:14px;line-height:1.75;color:var(--muted);}
.channel-card .meta{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--primary);margin-top:10px;}
.check-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-card);
}
.check-panel h3{font-size:18px;font-weight:700;color:var(--title);margin-bottom:6px;}
.check-panel .hint{font-size:14px;color:var(--muted);margin-bottom:18px;}
.check-list{display:flex;flex-direction:column;gap:14px;}
.check-list li{display:flex;gap:12px;font-size:14px;line-height:1.75;color:var(--text);}
.check-list li i{color:var(--success);font-size:15px;margin-top:4px;flex:none;}

/* ============ 收尾 CTA ============ */
.cta-card{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  padding:40px 28px;
  background-image:linear-gradient(120deg,rgba(8,58,168,.94),rgba(11,79,216,.92)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  box-shadow:0 28px 56px -30px rgba(8,58,168,.85);
  display:grid;grid-template-columns:1fr;gap:24px;align-items:center;
}
@media (min-width:1024px){.cta-card{padding:48px 48px;grid-template-columns:1fr auto;gap:40px;}}
.cta-card h2{font-size:23px;line-height:1.45;font-weight:700;color:#fff;margin-bottom:12px;}
@media (min-width:768px){.cta-card h2{font-size:27px;}}
.cta-card p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.82);max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--foot);color:#C7D2E4;margin-top:8px;padding:56px 0 24px;}
.foot-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:640px){.foot-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1.25fr;gap:32px;}}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-brand .brand-mark{width:32px;height:32px;border-radius:10px;display:grid;place-items:center;background:linear-gradient(135deg,#0B4FD8,#083AA8);color:#fff;font-size:15px;}
.foot-brand .brand-text{color:#fff;font-size:17px;font-weight:700;}
.foot-about{font-size:14px;line-height:1.85;color:#9FB0CC;}
.foot-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.foot-links{display:flex;flex-direction:column;gap:12px;}
.foot-links a{
  font-size:14px;color:#C7D2E4;width:fit-content;
  border-bottom:2px solid transparent;padding-bottom:1px;
  transition:color .2s ease,border-color .2s ease;
}
.foot-links a:hover{color:#fff;border-bottom-color:var(--primary);}
.foot-info{display:flex;flex-direction:column;gap:12px;font-size:14px;color:#9FB0CC;line-height:1.7;}
.foot-info i{color:#7FA6F0;margin-right:8px;}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  margin-top:32px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;color:#7E90AE;
}