/* roulang page: index */
:root{
    --brand:#6C5CE7;
    --brand-hover:#7D6EF0;
    --gold:#F0C75E;
    --mint:#3DD9C5;
    --ink:#0E0B1C;
    --deep:#18122E;
    --moon:#F7F6FB;
    --line:#E6E2F5;
    --text:#19152B;
    --sub:#5D5875;
    --card-shadow:0 12px 30px rgba(20,15,45,.08);
    --card-shadow-hover:0 18px 42px rgba(20,15,45,.14);
    --dark-shadow:0 20px 60px rgba(0,0,0,.35);
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
    background:var(--moon);
    color:var(--text);
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button,input,select,textarea{font:inherit;color:inherit;}
  h1,h2,h3,h4,p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--mint);outline-offset:2px;border-radius:4px;}

  .wrap{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px;}
  @media (min-width:1024px){.wrap{padding-left:32px;padding-right:32px;}}

  /* ---------- 导航 ---------- */
  .nav-glass{
    position:fixed;top:0;left:0;right:0;z-index:50;
    background:rgba(14,11,28,.42);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border-bottom:1px solid rgba(255,255,255,.12);
    box-shadow:0 10px 30px rgba(0,0,0,.18);
    transition:background .3s ease,box-shadow .3s ease;
  }
  .nav-glass.scrolled{
    background:rgba(14,11,28,.96);
    box-shadow:0 14px 44px rgba(0,0,0,.45);
  }
  .logo-mark{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);}
  .nav-link{position:relative;padding:8px 14px;border-radius:10px;color:#D8D3EE;font-size:15px;transition:color .22s,background .22s;}
  .nav-link:hover{color:#fff;background:rgba(255,255,255,.08);}
  .nav-link.active{color:#fff;font-weight:600;}
  .nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;border-radius:2px;background:var(--gold);}
  .nav-cta{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 18px;border-radius:11px;background:var(--gold);color:#0E0B1C;font-size:14.5px;font-weight:700;transition:transform .2s,background .2s,box-shadow .2s;}
  .nav-cta:hover{background:#F6D377;transform:translateY(-1px);box-shadow:0 10px 22px rgba(240,199,94,.3);}
  .nav-search{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;border-radius:11px;border:1px solid rgba(255,255,255,.22);color:#D8D3EE;font-size:14px;transition:.22s;}
  .nav-search:hover{border-color:var(--mint);color:#fff;background:rgba(61,217,197,.1);}
  .menu-btn{display:inline-flex;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;align-items:center;border-radius:12px;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.05);cursor:pointer;}
  .menu-btn span{display:block;width:18px;height:2px;border-radius:2px;background:#F8F7FF;}

  .mobile-mask{position:fixed;inset:0;background:rgba(6,4,16,.62);opacity:0;visibility:hidden;transition:.3s ease;z-index:55;}
  .mobile-mask.open{opacity:1;visibility:visible;}
  .mobile-menu{
    position:fixed;top:0;right:0;bottom:0;width:min(86vw,370px);
    background:#0E0B1C;z-index:60;padding:26px 22px 34px;
    transform:translateX(100%);transition:transform .34s cubic-bezier(.4,0,.2,1);
    overflow-y:auto;border-left:1px solid rgba(255,255,255,.1);
  }
  .mobile-menu.open{transform:translateX(0);}
  .mobile-menu a.m-link{display:block;padding:15px 4px;font-size:17px;color:#E7E3F7;border-bottom:1px solid rgba(255,255,255,.08);transition:color .2s,padding-left .2s;}
  .mobile-menu a.m-link:hover{color:var(--gold);padding-left:8px;}

  /* ---------- 按钮 ---------- */
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;height:50px;padding:0 24px;border-radius:12px;font-size:15.5px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;}
  .btn:active{transform:scale(.98);}
  .btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 26px rgba(108,92,231,.34);}
  .btn-primary:hover{background:var(--brand-hover);transform:translateY(-1px);box-shadow:0 16px 34px rgba(108,92,231,.46);}
  .btn-ghost{border-color:rgba(255,255,255,.34);color:#F8F7FF;background:rgba(255,255,255,.02);}
  .btn-ghost:hover{border-color:var(--mint);background:rgba(61,217,197,.1);transform:translateY(-1px);}
  .btn-outline{border-color:rgba(108,92,231,.55);color:var(--brand);background:transparent;}
  .btn-outline:hover{background:rgba(108,92,231,.09);transform:translateY(-1px);}
  .btn-gold{background:var(--gold);color:#0E0B1C;font-weight:700;}
  .btn-gold:hover{background:#F6D377;transform:translateY(-1px);box-shadow:0 14px 30px rgba(240,199,94,.28);}

  /* ---------- 通用 ---------- */
  .starfield{
    background-color:var(--ink);
    background-image:
      radial-gradient(rgba(255,255,255,.13) 1px,transparent 1px),
      radial-gradient(rgba(240,199,94,.11) 1px,transparent 1px);
    background-size:50px 50px,88px 88px;
    background-position:0 0,26px 32px;
  }
  .orbit-arc{
    position:absolute;border-radius:50%;border:1px solid rgba(255,255,255,.09);pointer-events:none;
  }
  .card{
    background:#fff;border:1px solid var(--line);border-radius:18px;
    box-shadow:var(--card-shadow);
    transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
  }
  .card:hover{transform:translateY(-4px);box-shadow:var(--card-shadow-hover);border-color:rgba(108,92,231,.45);}
  .card-dark{
    background:var(--deep);border:1px solid rgba(255,255,255,.12);border-radius:18px;
    box-shadow:var(--dark-shadow);
    transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
  }
  .card-dark:hover{transform:translateY(-4px);border-color:rgba(240,199,94,.45);}
  .pill{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:13px;line-height:1.6;background:rgba(108,92,231,.1);color:#5849d6;border:1px solid rgba(108,92,231,.2);}
  .pill-mint{background:rgba(61,217,197,.13);color:#1c8b80;border-color:rgba(61,217,197,.3);}
  .pill-gold{background:rgba(240,199,94,.16);color:#9a7c22;border-color:rgba(240,199,94,.36);}
  .pill-dark{background:rgba(255,255,255,.08);color:#CFC9E6;border-color:rgba(255,255,255,.16);}
  .arrow-link{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--brand);font-size:15px;transition:gap .22s ease,color .22s ease;}
  .arrow-link:hover{gap:12px;color:#5849d6;}
  .num-badge{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:14px;font-size:16px;font-weight:700;background:rgba(108,92,231,.1);color:var(--brand);border:1px solid rgba(108,92,231,.22);}
  .sec-title{font-size:32px;line-height:1.35;font-weight:700;letter-spacing:.2px;}
  @media (min-width:1024px){.sec-title{font-size:38px;}}
  .sec-sub{color:var(--sub);font-size:16.5px;line-height:1.85;}

  /* ---------- Hero ---------- */
  .hero{
    position:relative;overflow:hidden;
    padding-top:150px;padding-bottom:96px;
    background-color:#0E0B1C;
    background-image:linear-gradient(180deg,rgba(14,11,28,.78) 0%,rgba(14,11,28,.86) 46%,rgba(14,11,28,.96) 100%),url('/assets/images/backpic/back-1.webp');
    background-size:cover;background-position:center;
  }
  @media (min-width:1024px){.hero{padding-top:180px;padding-bottom:120px;}}
  .hero h1{font-size:30px;line-height:1.35;font-weight:800;color:#F8F7FF;letter-spacing:.2px;}
  @media (min-width:640px){.hero h1{font-size:38px;}}
  @media (min-width:1024px){.hero h1{font-size:50px;line-height:1.26;}}
  .hero-sub{color:#C9C4E0;font-size:17px;line-height:1.9;}
  .status-chip{display:inline-flex;align-items:center;gap:9px;padding:7px 15px;border-radius:999px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.15);color:#E7E3F7;font-size:13.5px;}
  .dot-live{width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px rgba(61,217,197,.18);}

  /* ---------- 数据带 ---------- */
  .stat-num{font-size:40px;font-weight:800;line-height:1.1;color:var(--gold);letter-spacing:.5px;}
  @media (min-width:1024px){.stat-num{font-size:50px;}}
  .stat-unit{font-size:15px;color:#C9C4E0;margin-left:6px;font-weight:500;}
  .stat-desc{color:#A9A2C6;font-size:14.5px;line-height:1.75;margin-top:8px;}
  .stat-cell{position:relative;padding:26px 24px;}
  .stat-cell::before{content:"";position:absolute;left:0;top:22px;bottom:22px;width:1px;background:linear-gradient(180deg,rgba(240,199,94,0),rgba(240,199,94,.45),rgba(240,199,94,0));}

  /* ---------- 列表/内容卡 ---------- */
  .post-card{display:flex;flex-direction:column;height:100%;padding:24px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--card-shadow);transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;}
  .post-card:hover{transform:translateY(-4px);box-shadow:var(--card-shadow-hover);border-color:rgba(108,92,231,.45);}
  .post-card h3{font-size:18.5px;font-weight:700;line-height:1.55;color:var(--text);transition:color .22s;}
  .post-card:hover h3{color:var(--brand);}
  .post-card p{color:var(--sub);font-size:15px;line-height:1.8;margin-top:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

  /* ---------- FAQ ---------- */
  .faq-item{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;}
  .faq-item.open{border-color:rgba(108,92,231,.6);box-shadow:0 14px 34px rgba(108,92,231,.13);}
  .faq-q{display:flex;align-items:flex-start;gap:16px;width:100%;padding:20px 22px;background:none;border:0;text-align:left;cursor:pointer;}
  .faq-q h3{font-size:17px;font-weight:700;line-height:1.6;color:var(--text);}
  .faq-plus{position:relative;flex:none;width:26px;height:26px;margin-top:2px;border-radius:8px;border:1px solid var(--line);background:#fff;transition:.25s ease;}
  .faq-plus::before,.faq-plus::after{content:"";position:absolute;left:50%;top:50%;background:var(--brand);transform:translate(-50%,-50%);transition:.25s ease;border-radius:2px;}
  .faq-plus::before{width:12px;height:2px;}
  .faq-plus::after{width:2px;height:12px;}
  .faq-item.open .faq-plus{background:var(--brand);border-color:var(--brand);}
  .faq-item.open .faq-plus::before{background:#fff;}
  .faq-item.open .faq-plus::after{background:#fff;height:0;opacity:0;}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .36s ease;}
  .faq-item.open .faq-a{max-height:520px;}
  .faq-a-inner{padding:0 24px 22px 64px;color:var(--sub);font-size:15.5px;line-height:1.88;}

  /* ---------- 表单 ---------- */
  .field{width:100%;height:48px;border-radius:12px;border:1px solid #DAD5EE;background:#fff;padding:0 14px;font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;}
  .field::placeholder{color:#A9A2C6;}
  .field:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(61,217,197,.34);}
  textarea.field{height:auto;min-height:132px;padding:13px 14px;line-height:1.8;resize:vertical;}
  .field-label{display:block;font-size:14px;font-weight:600;color:#3E3856;margin-bottom:8px;}

  /* ---------- 页脚 ---------- */
  .foot-link{color:#B8B2D2;font-size:14.5px;line-height:2.2;transition:color .2s ease,padding-left .2s ease;display:inline-block;}
  .foot-link:hover{color:var(--gold);padding-left:4px;}
  .foot-title{color:#F8F7FF;font-size:15px;font-weight:700;letter-spacing:.4px;margin-bottom:14px;}

  .divider-soft{height:1px;background:linear-gradient(90deg,rgba(108,92,231,0),rgba(108,92,231,.35),rgba(108,92,231,0));}
  .img-cover{width:100%;height:100%;object-fit:cover;border-radius:16px;}
  .img-frame{position:relative;overflow:hidden;border-radius:16px;background:#120E24;}
  .img-frame::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,11,28,0) 42%,rgba(14,11,28,.62) 100%);pointer-events:none;}
  .step-line{position:absolute;left:26px;top:56px;bottom:-10px;width:1px;background:linear-gradient(180deg,rgba(108,92,231,.5),rgba(108,92,231,.06));}
  @media (min-width:1024px){.step-line{display:none;}}

/* roulang page: article */
:root{
    --purple:#6C5CE7;
    --purple-soft:#8A7CF0;
    --gold:#F0C75E;
    --cyan:#3DD9C5;
    --ink-deep:#0E0B1C;
    --ink-card:#18122E;
    --moon:#F7F6FB;
    --ink:#19152B;
    --ink-2:#5D5875;
    --line:#E6E2F5;
    --line-dark:rgba(255,255,255,.12);
    --light-text:#F8F7FF;
    --light-sub:#C9C4E0;
    --r-btn:12px;
    --r-card:18px;
    --shadow-1:0 12px 30px rgba(20,15,45,.08);
    --shadow-2:0 20px 60px rgba(0,0,0,.35);
    --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:var(--font);
    font-size:17px;
    line-height:1.85;
    color:var(--ink);
    background:var(--moon);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;}
  h1,h2,h3,h4,p,ul,ol{margin:0;}
  ul,ol{padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}

  .wrap{max-width:1240px;margin:0 auto;padding:0 20px;}
  @media (min-width:1024px){ .wrap{padding:0 32px;} }

  /* ---------- header ---------- */
  #siteHeader{
    position:fixed;top:0;left:0;right:0;z-index:60;
    transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
  }
  .nav-glass{
    background:rgba(14,11,28,.42);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid rgba(255,255,255,.12);
    box-shadow:0 6px 24px rgba(8,5,20,.22);
  }
  #siteHeader.is-solid{
    background:rgba(14,11,28,.96);
    border-bottom-color:rgba(255,255,255,.14);
    box-shadow:0 14px 40px rgba(0,0,0,.38);
  }
  .logo-mark{
    width:38px;height:38px;flex:none;
    display:grid;place-items:center;
    border-radius:12px;
    background:linear-gradient(150deg,rgba(108,92,231,.35),rgba(61,217,197,.16));
    border:1px solid rgba(255,255,255,.16);
  }
  .nav-link{
    position:relative;
    display:inline-block;
    padding:8px 14px;
    font-size:15px;
    color:rgba(248,247,255,.86);
    border-radius:10px;
    transition:color .22s ease,background .22s ease;
  }
  .nav-link:hover{color:#fff;background:rgba(255,255,255,.08);}
  .nav-link.active{color:#fff;}
  .nav-link.active::after{
    content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
    background:linear-gradient(90deg,var(--gold),var(--cyan));border-radius:2px;
  }
  .nav-search{
    display:inline-flex;align-items:center;gap:8px;
    padding:9px 14px;font-size:14px;
    color:var(--light-sub);
    border:1px solid rgba(255,255,255,.18);
    border-radius:999px;
    transition:border-color .22s ease,color .22s ease,background .22s ease;
  }
  .nav-search:hover{color:#fff;border-color:rgba(240,199,94,.6);background:rgba(255,255,255,.06);}
  .nav-cta{
    display:inline-flex;align-items:center;
    padding:10px 20px;font-size:14.5px;font-weight:600;
    color:#fff;background:var(--purple);
    border-radius:var(--r-btn);
    box-shadow:0 8px 22px rgba(108,92,231,.35);
    transition:transform .2s ease,background .2s ease,box-shadow .2s ease;
  }
  .nav-cta:hover{background:var(--purple-soft);transform:translateY(-1px);box-shadow:0 12px 28px rgba(108,92,231,.45);}
  .nav-cta:active{transform:scale(.98);}
  .menu-btn{
    width:44px;height:44px;display:grid;place-content:center;gap:5px;
    background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
    border-radius:12px;cursor:pointer;
  }
  .menu-btn span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
  .menu-btn.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .menu-btn.is-open span:nth-child(2){opacity:0;}
  .menu-btn.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

  #drawer{
    position:fixed;top:0;right:0;height:100%;width:82%;max-width:360px;z-index:70;
    background:var(--ink-deep);
    border-left:1px solid var(--line-dark);
    padding:88px 24px 32px;
    transform:translateX(100%);
    transition:transform .32s ease;
    overflow-y:auto;
  }
  #drawer.is-open{transform:translateX(0);}
  #drawer a.drawer-link{
    display:block;padding:16px 4px;font-size:19px;color:var(--light-text);
    border-bottom:1px solid rgba(255,255,255,.08);
  }
  #drawer a.drawer-link:hover{color:var(--gold);}
  #drawerMask{
    position:fixed;inset:0;z-index:65;background:rgba(8,5,20,.6);
    opacity:0;pointer-events:none;transition:opacity .3s ease;
  }
  #drawerMask.is-open{opacity:1;pointer-events:auto;}

  /* ---------- hero / banner ---------- */
  .page-hero{
    position:relative;
    padding:132px 0 64px;
    background-color:#0E0B1C;
    background-image:linear-gradient(180deg,rgba(14,11,28,.86) 0%,rgba(14,11,28,.72) 45%,rgba(14,11,28,.95) 100%),url('/assets/images/backpic/back-2.webp');
    background-size:cover;
    background-position:center;
    color:var(--light-text);
    overflow:hidden;
  }
  .orbit-line{
    position:absolute;border:1px solid rgba(255,255,255,.12);border-radius:50%;
    pointer-events:none;
  }
  .orbit-a{width:520px;height:520px;right:-160px;top:-180px;}
  .orbit-b{width:340px;height:340px;right:-60px;top:-90px;border-color:rgba(108,92,231,.28);}
  .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--light-sub);position:relative;}
  .crumb a:hover{color:var(--gold);}
  .crumb .sep{opacity:.5;}
  .crumb .here{color:var(--gold);}
  .page-hero h1{
    position:relative;
    font-size:34px;line-height:1.35;font-weight:700;letter-spacing:.2px;
    margin-top:18px;
  }
  @media (min-width:768px){ .page-hero h1{font-size:44px;} }
  @media (min-width:1024px){ .page-hero h1{font-size:50px;max-width:900px;} }
  .meta-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:22px;position:relative;}

  .pill{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 13px;font-size:13px;border-radius:999px;
    background:rgba(108,92,231,.1);color:var(--purple);border:1px solid rgba(108,92,231,.22);
  }
  .pill-dark{background:rgba(255,255,255,.06);color:var(--light-sub);border:1px solid rgba(255,255,255,.14);}
  .pill-cyan{background:rgba(61,217,197,.12);color:#1E8C7E;border:1px solid rgba(61,217,197,.32);}
  .pill-gold{background:rgba(240,199,94,.14);color:#8A6A12;border:1px solid rgba(240,199,94,.4);}

  /* ---------- layout ---------- */
  main{display:block;}
  .section{padding:56px 0;}
  @media (min-width:1024px){ .section{padding:80px 0;} }

  .article-grid{display:grid;gap:32px;}
  @media (min-width:1024px){
    .article-grid{grid-template-columns:minmax(0,1fr) 336px;gap:48px;align-items:start;}
  }

  .paper{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--shadow-1);padding:24px;
  }
  @media (min-width:768px){ .paper{padding:40px 44px;} }

  /* ---------- article body ---------- */
  .article-body{max-width:820px;font-size:17.5px;line-height:1.9;color:#221D38;}
  .article-body > * + *{margin-top:1.15em;}
  .article-body p{line-height:1.9;}
  .article-body h2{
    position:relative;font-size:25px;line-height:1.4;font-weight:700;color:var(--ink);
    margin-top:2em;padding-left:16px;
  }
  .article-body h2::before{
    content:"";position:absolute;left:0;top:.28em;bottom:.22em;width:4px;border-radius:4px;
    background:linear-gradient(180deg,var(--gold),var(--purple));
  }
  .article-body h3{
    font-size:20.5px;font-weight:700;color:var(--ink);margin-top:1.7em;padding-left:12px;
    border-left:3px solid rgba(108,92,231,.45);
  }
  .article-body h4{font-size:18px;font-weight:600;color:var(--ink);margin-top:1.4em;}
  .article-body ul,.article-body ol{padding-left:1.4em;list-style:disc;}
  .article-body ol{list-style:decimal;}
  .article-body li{margin:.5em 0;padding-left:4px;}
  .article-body li::marker{color:var(--purple);}
  .article-body a{color:var(--purple);border-bottom:1px solid rgba(108,92,231,.35);}
  .article-body a:hover{color:#4B3FD1;border-bottom-color:#4B3FD1;}
  .article-body blockquote{
    margin:1.6em 0;padding:18px 22px;
    background:linear-gradient(120deg,rgba(108,92,231,.07),rgba(61,217,197,.07));
    border-left:4px solid var(--purple);border-radius:0 14px 14px 0;
    color:#2E2850;
  }
  .article-body img{border-radius:14px;margin:1.6em auto;border:1px solid var(--line);}
  .article-body figure{margin:1.8em 0;}
  .article-body figcaption{font-size:13.5px;color:var(--ink-2);text-align:center;margin-top:10px;}
  .article-body table{
    width:100%;border-collapse:collapse;font-size:15.5px;margin:1.6em 0;
    display:block;overflow-x:auto;white-space:nowrap;
  }
  .article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;}
  .article-body th{background:#F3F1FB;color:var(--ink);font-weight:600;}
  .article-body code{
    background:#F3F1FB;padding:2px 7px;border-radius:6px;
    font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:15px;color:#43389F;
  }
  .article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0;}

  .empty-box{
    border:1px dashed var(--line);border-radius:16px;background:#FBFBFE;
    padding:46px 24px;text-align:center;
  }

  /* ---------- sidebar ---------- */
  .side-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--shadow-1);padding:22px;
  }
  .side-card + .side-card{margin-top:20px;}
  .side-title{font-size:15px;font-weight:700;color:var(--ink);display:flex;align-items:center;gap:8px;}
  .side-title::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--gold);}
  .side-item{
    display:flex;gap:10px;align-items:flex-start;
    padding:12px 0;border-bottom:1px dashed var(--line);
    font-size:14.5px;color:var(--ink-2);line-height:1.7;
  }
  .side-item:last-child{border-bottom:0;padding-bottom:0;}
  .side-item strong{display:block;color:var(--ink);font-weight:600;margin-bottom:2px;}
  .side-item:hover strong{color:var(--purple);}

  .sticky-side{position:sticky;top:104px;}

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 26px;font-size:15px;font-weight:600;border-radius:var(--r-btn);
    border:1px solid transparent;cursor:pointer;
    transition:transform .2s ease,background .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease;
  }
  .btn-primary{background:var(--purple);color:#fff;box-shadow:0 10px 26px rgba(108,92,231,.3);}
  .btn-primary:hover{background:var(--purple-soft);transform:translateY(-1px);box-shadow:0 14px 32px rgba(108,92,231,.42);}
  .btn-primary:active{transform:scale(.98);}
  .btn-ghost{background:transparent;color:var(--purple);border-color:rgba(108,92,231,.5);}
  .btn-ghost:hover{background:rgba(108,92,231,.08);transform:translateY(-1px);}
  .btn-gold{background:var(--gold);color:#221B04;box-shadow:0 10px 26px rgba(240,199,94,.28);}
  .btn-gold:hover{background:#F6D67F;transform:translateY(-1px);}
  .btn-outline-light{background:transparent;color:var(--light-text);border-color:rgba(255,255,255,.32);}
  .btn-outline-light:hover{border-color:var(--gold);color:var(--gold);}

  /* ---------- related ---------- */
  .card{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
    overflow:hidden;box-shadow:var(--shadow-1);
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
    display:flex;flex-direction:column;height:100%;
  }
  .card:hover{transform:translateY(-4px);border-color:rgba(108,92,231,.45);box-shadow:0 20px 44px rgba(20,15,45,.14);}
  .card-thumb{position:relative;aspect-ratio:3/2;overflow:hidden;}
  .card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
  .card:hover .card-thumb img{transform:scale(1.05);}
  .card-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,11,28,0) 40%,rgba(14,11,28,.34));}
  .card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
  .card-body h3{font-size:18.5px;font-weight:700;color:var(--ink);line-height:1.5;}
  .card-body p{font-size:14.5px;color:var(--ink-2);line-height:1.75;}
  .card-more{
    margin-top:auto;display:inline-flex;align-items:center;gap:6px;
    font-size:14px;font-weight:600;color:var(--purple);
  }
  .card-more svg{transition:transform .25s ease;}
  .card:hover .card-more svg{transform:translateX(4px);}

  /* ---------- dark band ---------- */
  .band-dark{
    background:var(--ink-deep);color:var(--light-text);position:relative;overflow:hidden;
  }
  .band-dark::before{
    content:"";position:absolute;inset:0;
    background-image:radial-gradient(rgba(255,255,255,.13) 1px,transparent 1px);
    background-size:26px 26px;opacity:.35;pointer-events:none;
  }
  .stat-num{font-size:40px;font-weight:700;color:var(--gold);line-height:1.1;font-variant-numeric:tabular-nums;}
  @media (min-width:1024px){ .stat-num{font-size:48px;} }
  .stat-line{height:2px;width:44px;background:linear-gradient(90deg,var(--gold),transparent);margin:14px 0 12px;}

  /* ---------- faq ---------- */
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:16px;
    margin-bottom:14px;overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
  }
  .faq-item.is-open{border-color:rgba(108,92,231,.55);box-shadow:0 14px 34px rgba(20,15,45,.1);}
  .faq-q{
    width:100%;display:flex;align-items:flex-start;gap:14px;text-align:left;
    padding:20px 22px;background:none;border:0;cursor:pointer;
    font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.6;
  }
  .faq-no{
    flex:none;width:26px;height:26px;border-radius:8px;
    display:grid;place-items:center;font-size:12.5px;font-weight:700;
    background:rgba(108,92,231,.1);color:var(--purple);
  }
  .faq-icon{
    flex:none;margin-left:auto;width:24px;height:24px;border-radius:50%;
    display:grid;place-items:center;color:var(--purple);
    border:1px solid rgba(108,92,231,.3);font-size:16px;line-height:1;
    transition:transform .28s ease,background .28s ease,color .28s ease;
  }
  .faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--purple);color:#fff;}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease;}
  .faq-a-inner{padding:0 22px 22px 62px;font-size:15.5px;color:var(--ink-2);line-height:1.85;}

  /* ---------- footer ---------- */
  .foot-title{color:#fff;font-size:14.5px;font-weight:700;letter-spacing:.4px;margin-bottom:16px;}
  .foot-link{color:#B8B2D2;font-size:14.5px;line-height:2.2;display:inline-block;transition:color .22s ease;}
  .foot-link:hover{color:var(--gold);}
  footer ul li{line-height:1;}

  @media (max-width:767px){
    .btn{width:100%;}
    .article-body{font-size:16.5px;}
    .article-body h2{font-size:21.5px;}
  }

/* roulang page: category1 */
:root{
    --purple:#6C5CE7;
    --purple-deep:#4B3FC4;
    --gold:#F0C75E;
    --cyan:#3DD9C5;
    --ink:#0E0B1C;
    --ink-2:#18122E;
    --bg:#F7F6FB;
    --card:#FFFFFF;
    --border:#E6E2F5;
    --border-dark:rgba(255,255,255,.12);
    --text:#19152B;
    --text-2:#5D5875;
    --text-inv:#F8F7FF;
    --text-inv-2:#C9C4E0;
    --r-btn:12px;
    --r-card:18px;
    --shadow-sm:0 12px 30px rgba(20,15,45,.08);
    --shadow-md:0 18px 44px rgba(20,15,45,.14);
    --shadow-dark:0 20px 60px rgba(0,0,0,.35);
  }
  *,*::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","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
    font-size:16.5px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
  ul,ol{padding:0;list-style:none;}
  a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;}
  img{max-width:100%;display:block;}
  button,input,select,textarea{font:inherit;color:inherit;}
  :focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}

  .wrap{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px;}
  @media (min-width:1024px){ .wrap{padding-left:32px;padding-right:32px;} }

  /* ============ 导航 ============ */
  #siteHeader{
    position:fixed;top:0;left:0;right:0;z-index:60;
    background:rgba(14,11,28,.42);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border-bottom:1px solid var(--border-dark);
    box-shadow:0 10px 32px rgba(8,5,20,.22);
    transition:background-color .3s ease,box-shadow .3s ease,border-color .3s ease;
  }
  #siteHeader.is-solid{
    background:rgba(14,11,28,.96);
    box-shadow:0 14px 40px rgba(6,4,16,.45);
    border-bottom-color:rgba(255,255,255,.16);
  }
  .logo-mark{
    display:inline-flex;align-items:center;justify-content:center;
    width:42px;height:42px;border-radius:14px;
    background:linear-gradient(145deg,rgba(108,92,231,.35),rgba(61,217,197,.14));
    border:1px solid rgba(255,255,255,.14);
    flex:0 0 auto;
  }
  .nav-link{
    position:relative;
    display:inline-flex;align-items:center;
    padding:9px 15px;border-radius:10px;
    font-size:15px;color:var(--text-inv-2);
    border:1px solid transparent;
  }
  .nav-link:hover{color:#fff;background:rgba(108,92,231,.18);}
  .nav-link.active{
    color:#fff;background:rgba(108,92,231,.28);
    border-color:rgba(240,199,94,.42);
  }
  .nav-search{
    display:inline-flex;align-items:center;gap:7px;
    padding:8px 14px;border-radius:999px;
    font-size:13.5px;color:var(--text-inv-2);
    border:1px solid rgba(255,255,255,.18);
    background:rgba(255,255,255,.04);
  }
  .nav-search:hover{color:#fff;border-color:rgba(61,217,197,.6);background:rgba(61,217,197,.12);}
  .nav-cta{
    display:inline-flex;align-items:center;
    padding:10px 20px;border-radius:var(--r-btn);
    font-size:14.5px;font-weight:600;color:#fff;
    background:var(--purple);
    box-shadow:0 10px 24px rgba(108,92,231,.35);
  }
  .nav-cta:hover{background:#7d6fef;transform:translateY(-1px);}
  .nav-cta:active{transform:scale(.98);}
  .menu-btn{
    width:44px;height:44px;border-radius:12px;
    border:1px solid rgba(255,255,255,.18);
    background:rgba(255,255,255,.05);
    display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
    cursor:pointer;
  }
  .menu-btn span{display:block;width:19px;height:2px;background:#EFEDFA;border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
  .menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0;}
  .menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

  #mobileDrawer{
    position:fixed;top:0;right:0;bottom:0;z-index:70;
    width:min(86vw,360px);
    background:#0E0B1C;
    border-left:1px solid var(--border-dark);
    box-shadow:-20px 0 60px rgba(0,0,0,.5);
    transform:translateX(102%);
    transition:transform .32s cubic-bezier(.4,0,.2,1);
    display:flex;flex-direction:column;
    padding:22px 22px 28px;
    overflow-y:auto;
  }
  #mobileDrawer.open{transform:translateX(0);}
  .drawer-link{
    display:block;padding:15px 14px;border-radius:14px;
    font-size:17px;color:#E7E4F6;
    border:1px solid transparent;
  }
  .drawer-link:hover{background:rgba(108,92,231,.2);color:#fff;}
  .drawer-link.active{border-color:rgba(240,199,94,.45);background:rgba(108,92,231,.26);color:#fff;}
  #drawerMask{
    position:fixed;inset:0;z-index:65;background:rgba(6,4,16,.6);
    opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
  }
  #drawerMask.show{opacity:1;visibility:visible;}

  /* ============ Hero ============ */
  .hero-entry{
    position:relative;overflow:hidden;
    background:#0E0B1C url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    padding-top:138px;padding-bottom:74px;
  }
  .hero-entry::before{
    content:"";position:absolute;inset:0;
    background:
      radial-gradient(circle at 82% 18%,rgba(108,92,231,.35),transparent 55%),
      linear-gradient(180deg,rgba(14,11,28,.94) 0%,rgba(14,11,28,.86) 48%,rgba(14,11,28,.98) 100%);
  }
  .hero-entry::after{
    content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
    background-image:radial-gradient(rgba(255,255,255,.22) 1px,transparent 1px);
    background-size:34px 34px;
    mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 78%);
    -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 78%);
  }
  .hero-entry > .wrap{position:relative;z-index:2;}
  .crumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13.5px;color:var(--text-inv-2);
  }
  .crumb a:hover{color:var(--gold);}
  .crumb .sep{color:rgba(255,255,255,.32);}
  .crumb .current{color:var(--gold);}

  /* ============ 通用组件 ============ */
  .pill{
    display:inline-flex;align-items:center;gap:6px;
    padding:6px 14px;border-radius:999px;
    font-size:13px;line-height:1.6;
    border:1px solid var(--border);background:#fff;color:var(--text-2);
  }
  .pill-dark{border-color:rgba(255,255,255,.16);background:rgba(255,255,255,.05);color:var(--text-inv-2);}
  .pill-gold{border-color:rgba(240,199,94,.5);background:rgba(240,199,94,.12);color:var(--gold);}
  .pill-cyan{border-color:rgba(61,217,197,.45);background:rgba(61,217,197,.12);color:#0E0B1C;}

  .btn-primary{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:14px 28px;border-radius:var(--r-btn);
    font-size:15.5px;font-weight:600;color:#fff;background:var(--purple);
    box-shadow:0 14px 32px rgba(108,92,231,.34);
    border:1px solid transparent;cursor:pointer;
  }
  .btn-primary:hover{background:#7d6fef;transform:translateY(-1px);box-shadow:0 18px 40px rgba(108,92,231,.44);}
  .btn-primary:active{transform:scale(.98);}
  .btn-gold{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:14px 28px;border-radius:var(--r-btn);
    font-size:15.5px;font-weight:700;color:#0E0B1C;background:var(--gold);
    border:1px solid transparent;cursor:pointer;
    box-shadow:0 14px 32px rgba(240,199,94,.26);
  }
  .btn-gold:hover{background:#f6d478;transform:translateY(-1px);}
  .btn-gold:active{transform:scale(.98);}
  .btn-ghost{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 26px;border-radius:var(--r-btn);
    font-size:15.5px;font-weight:600;color:#fff;
    background:transparent;border:1px solid rgba(108,92,231,.7);cursor:pointer;
  }
  .btn-ghost:hover{background:rgba(108,92,231,.2);border-color:var(--purple);transform:translateY(-1px);}
  .btn-ghost-dark{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 26px;border-radius:var(--r-btn);
    font-size:15.5px;font-weight:600;color:var(--purple);
    background:#fff;border:1px solid var(--border);cursor:pointer;
  }
  .btn-ghost-dark:hover{border-color:var(--purple);transform:translateY(-1px);}

  .sec{padding:88px 0;}
  @media (max-width:767px){ .sec{padding:60px 0;} }
  .sec-dark{background:var(--ink);color:var(--text-inv);}
  .sec-head{max-width:760px;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:9px;
    font-size:13px;letter-spacing:.14em;text-transform:uppercase;
    color:var(--purple);font-weight:700;
  }
  .eyebrow::before{content:"";width:26px;height:1px;background:var(--gold);}
  .eyebrow-light{color:var(--gold);}
  .h2{font-size:clamp(26px,3.2vw,38px);line-height:1.35;font-weight:700;letter-spacing:-.01em;margin-top:14px;}
  .lead{color:var(--text-2);font-size:16.5px;line-height:1.9;margin-top:16px;}

  .card{
    background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
    padding:26px;box-shadow:var(--shadow-sm);
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(108,92,231,.5);}
  .card-dark{
    background:var(--ink-2);border:1px solid var(--border-dark);border-radius:var(--r-card);
    padding:26px;box-shadow:var(--shadow-dark);
  }
  .card-index{
    font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
    font-size:13px;color:var(--gold);letter-spacing:.1em;
  }
  .card-title{font-size:19px;font-weight:700;margin-top:12px;line-height:1.5;}
  .card-text{color:var(--text-2);font-size:15px;line-height:1.85;margin-top:10px;}
  .card-dark .card-text{color:var(--text-inv-2);}
  .arrow-link{
    display:inline-flex;align-items:center;gap:8px;
    margin-top:18px;font-size:14.5px;font-weight:600;color:var(--purple);
  }
  .arrow-link .arw{transition:transform .22s ease;}
  .arrow-link:hover .arw{transform:translateX(4px);}

  /* ============ 轨道图 ============ */
  .orbit{position:relative;width:100%;max-width:430px;margin:0 auto;aspect-ratio:1/1;}
  .orbit-ring{position:absolute;border-radius:50%;}
  .ring-1{inset:4%;border:1px dashed rgba(255,255,255,.16);}
  .ring-2{inset:22%;border:1px solid rgba(108,92,231,.4);}
  .ring-3{inset:40%;border:1px dashed rgba(240,199,94,.28);}
  .orbit-core{
    position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
    width:44%;aspect-ratio:1/1;border-radius:50%;
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
    text-align:center;padding:10px;
    background:radial-gradient(circle at 35% 28%,rgba(108,92,231,.55),rgba(14,11,28,.96) 72%);
    border:1px solid rgba(240,199,94,.4);
    box-shadow:0 0 0 10px rgba(108,92,231,.08),0 24px 60px rgba(0,0,0,.5);
  }
  .orbit-core strong{font-size:19px;color:#fff;line-height:1.3;}
  .orbit-core small{font-size:11.5px;color:var(--gold);letter-spacing:.08em;}
  .orbit-core span{font-size:11.5px;color:var(--text-inv-2);}
  .orbit-node{
    position:absolute;
    padding:8px 14px;border-radius:999px;white-space:nowrap;
    font-size:13px;color:#E9E6F8;
    background:#18122E;border:1px solid rgba(255,255,255,.14);
    box-shadow:0 12px 28px rgba(0,0,0,.4);
  }
  .n1{top:0;left:50%;transform:translate(-50%,-50%);}
  .n2{top:50%;right:0;transform:translate(50%,-50%);}
  .n3{bottom:0;left:50%;transform:translate(-50%,50%);}
  .n4{top:50%;left:0;transform:translate(-50%,-50%);}
  @media (max-width:520px){
    .orbit-node{font-size:11.5px;padding:6px 10px;}
    .n2{transform:translate(28%,-50%);}
    .n4{transform:translate(-28%,-50%);}
  }

  /* ============ 步骤 ============ */
  .step-list{display:grid;gap:16px;margin-top:42px;}
  .step-item{
    display:grid;grid-template-columns:64px 1fr;gap:22px;align-items:start;
    background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
    padding:24px 26px;box-shadow:var(--shadow-sm);
    transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
  }
  .step-item:hover{border-color:rgba(108,92,231,.5);transform:translateX(4px);box-shadow:var(--shadow-md);}
  .step-num{
    font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
    font-size:22px;font-weight:700;color:var(--purple);
    border-right:1px solid var(--border);padding-right:16px;line-height:1.5;
  }
  .step-item h3{font-size:19px;font-weight:700;line-height:1.5;}
  .step-item p{color:var(--text-2);font-size:15px;line-height:1.85;margin-top:8px;}
  @media (max-width:640px){
    .step-item{grid-template-columns:1fr;gap:10px;padding:20px;}
    .step-num{border-right:none;border-bottom:1px solid var(--border);padding:0 0 8px;font-size:18px;}
  }

  /* ============ 数据带 ============ */
  .stat-band{background:var(--ink);color:var(--text-inv);padding:56px 0;}
  .stat-grid{display:grid;gap:0;grid-template-columns:repeat(2,1fr);}
  @media (min-width:768px){ .stat-grid{grid-template-columns:repeat(4,1fr);} }
  .stat-item{
    padding:22px 20px;border-top:1px solid rgba(255,255,255,.1);
    border-left:1px solid rgba(255,255,255,.1);
  }
  .stat-num{
    font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
    font-size:clamp(28px,3.6vw,40px);font-weight:700;color:var(--gold);line-height:1.2;
  }
  .stat-num small{font-size:14px;color:var(--text-inv-2);font-weight:400;margin-left:6px;}
  .stat-item p{font-size:14px;color:var(--text-inv-2);margin-top:8px;line-height:1.75;}

  /* ============ 场景卡 ============ */
  .cover-card{
    background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
    overflow:hidden;box-shadow:var(--shadow-sm);
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
    display:flex;flex-direction:column;
  }
  .cover-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(108,92,231,.5);}
  .cover-media{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--ink);}
  .cover-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
  .cover-card:hover .cover-media img{transform:scale(1.05);}
  .cover-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,11,28,.05),rgba(14,11,28,.55));}
  .cover-tag{
    position:absolute;left:16px;top:16px;z-index:2;
    padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;
    background:rgba(14,11,28,.72);color:var(--gold);border:1px solid rgba(240,199,94,.4);
  }
  .cover-body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1;}
  .cover-body h3{font-size:19px;font-weight:700;line-height:1.5;}
  .cover-body p{color:var(--text-2);font-size:15px;line-height:1.85;margin-top:10px;flex:1;}

  /* ============ FAQ ============ */
  .faq-list{margin-top:38px;display:grid;gap:14px;}
  .faq-item{
    background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
    overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
  }
  .faq-item.open{border-color:rgba(108,92,231,.6);box-shadow:var(--shadow-sm);}
  .faq-q{
    width:100%;display:grid;grid-template-columns:52px 1fr 32px;gap:14px;align-items:center;
    padding:20px 24px;background:transparent;border:0;cursor:pointer;text-align:left;
  }
  .faq-q .no{
    font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
    font-size:14px;color:var(--gold);letter-spacing:.08em;
  }
  .faq-q h3{font-size:17px;font-weight:600;line-height:1.6;color:var(--text);}
  .faq-ico{
    position:relative;width:26px;height:26px;border-radius:50%;
    border:1px solid var(--border);flex:0 0 auto;
    transition:transform .3s ease,border-color .3s ease,background-color .3s ease;
  }
  .faq-ico::before,.faq-ico::after{
    content:"";position:absolute;left:50%;top:50%;background:var(--purple);border-radius:2px;
    transform:translate(-50%,-50%);
  }
  .faq-ico::before{width:11px;height:2px;}
  .faq-ico::after{width:2px;height:11px;transition:transform .3s ease,opacity .3s ease;}
  .faq-item.open .faq-ico{border-color:var(--purple);background:rgba(108,92,231,.1);}
  .faq-item.open .faq-ico::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease;}
  .faq-a-inner{padding:0 24px 24px 90px;color:var(--text-2);font-size:15.5px;line-height:1.9;}
  @media (max-width:640px){
    .faq-q{grid-template-columns:38px 1fr 28px;padding:18px;gap:10px;}
    .faq-a-inner{padding:0 18px 20px 56px;}
  }

  /* ============ 表单 ============ */
  .cta-panel{
    background:
      radial-gradient(circle at 88% 12%,rgba(108,92,231,.4),transparent 58%),
      #0E0B1C;
    border:1px solid var(--border-dark);
    border-radius:24px;
    padding:44px;
    box-shadow:var(--shadow-dark);
  }
  @media (max-width:767px){ .cta-panel{padding:26px 20px;border-radius:20px;} }
  .field{display:block;margin-top:18px;}
  .field span{display:block;font-size:13.5px;color:var(--text-inv-2);margin-bottom:8px;}
  .field input,.field select,.field textarea{
    width:100%;height:48px;padding:0 14px;
    border-radius:12px;border:1px solid rgba(255,255,255,.16);
    background:rgba(255,255,255,.05);color:#fff;font-size:15px;
    transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
  }
  .field textarea{height:auto;min-height:132px;padding:12px 14px;line-height:1.8;resize:vertical;}
  .field select option{color:#19152B;}
  .field input::placeholder,.field textarea::placeholder{color:rgba(201,196,224,.6);}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--purple);
    box-shadow:0 0 0 3px rgba(61,217,197,.35);
    background:rgba(255,255,255,.08);
  }

  /* ============ 页脚 ============ */
  .foot-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;letter-spacing:.02em;}
  .foot-link{
    display:block;padding:5px 0;font-size:14.5px;color:#B8B2D2;
  }
  .foot-link:hover{color:var(--gold);}
  .foot-bottom{
    border-top:1px solid rgba(255,255,255,.1);
    padding:22px 0;font-size:13.5px;color:#8B85A8;
    display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;justify-content:space-between;
  }
  @media (max-width:767px){
    .btn-primary,.btn-ghost,.btn-ghost-dark,.btn-gold{width:100%;}
  }

/* roulang page: category2 */
:root{
  --star-purple:#6C5CE7;
  --star-purple-soft:#8B7DF1;
  --star-gold:#F0C75E;
  --comet-cyan:#3DD9C5;
  --deep-space:#0E0B1C;
  --deep-card:#18122E;
  --moon-white:#F7F6FB;
  --line-light:#E6E2F5;
  --line-dark:rgba(255,255,255,.12);
  --text-main:#19152B;
  --text-sub:#5D5875;
  --text-invert:#F8F7FF;
  --text-invert-sub:#C9C4E0;
  --radius-btn:12px;
  --radius-card:18px;
  --shadow-card:0 12px 30px rgba(20,15,45,.08);
  --shadow-card-hover:0 20px 46px rgba(20,15,45,.14);
  --shadow-dark:0 20px 60px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  background:var(--moon-white);
  color:var(--text-main);
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .22s ease,background .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease}
button,input,select,textarea{font:inherit;color:inherit}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.2px}
p{margin:0}
:focus-visible{outline:2px solid var(--comet-cyan);outline-offset:2px}

.wrap{width:100%;max-width:1220px;margin:0 auto;padding:0 20px}
@media(min-width:1024px){.wrap{padding:0 32px}}

/* ---------- 导航 ---------- */
#siteHeader{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(14,11,28,.42);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.12);
  transition:background .3s ease,box-shadow .3s ease;
}
#siteHeader.is-solid{background:rgba(14,11,28,.96);box-shadow:0 12px 34px rgba(0,0,0,.38)}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;background:rgba(108,92,231,.18);border:1px solid rgba(240,199,94,.28)}
.nav-link{
  position:relative;display:inline-block;padding:9px 15px;border-radius:10px;
  font-size:14.5px;color:rgba(248,247,255,.8);
}
.nav-link:hover{color:#fff;background:rgba(108,92,231,.28)}
.nav-link.active{color:#fff;background:rgba(108,92,231,.36);box-shadow:inset 0 0 0 1px rgba(240,199,94,.35)}
.nav-link.active::after{content:"";position:absolute;left:15px;right:15px;bottom:4px;height:2px;border-radius:2px;background:var(--star-gold)}
.nav-search{
  display:inline-flex;align-items:center;gap:8px;padding:9px 14px;border-radius:999px;
  font-size:13.5px;color:rgba(248,247,255,.82);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
}
.nav-search:hover{color:#fff;border-color:rgba(61,217,197,.6);background:rgba(61,217,197,.12)}
.nav-cta{
  display:inline-flex;align-items:center;padding:10px 20px;border-radius:var(--radius-btn);
  font-size:14px;font-weight:600;color:#fff;background:var(--star-purple);
  box-shadow:0 10px 24px rgba(108,92,231,.38);
}
.nav-cta:hover{background:var(--star-purple-soft);transform:translateY(-1px)}
.nav-cta:active{transform:scale(.98)}
.menu-btn{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 11px;border-radius:12px;cursor:pointer;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
}
.menu-btn span{display:block;height:2px;border-radius:2px;background:#F8F7FF;transition:transform .25s ease,opacity .25s ease}
.menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

#mobileDrawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:70;
  background:#0E0B1C;border-left:1px solid var(--line-dark);
  transform:translateX(105%);transition:transform .3s ease;
  padding:88px 24px 32px;display:flex;flex-direction:column;gap:6px;
  overflow-y:auto;
}
#mobileDrawer.open{transform:translateX(0)}
#drawerMask{position:fixed;inset:0;background:rgba(9,7,20,.6);z-index:65;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease}
#drawerMask.open{opacity:1;visibility:visible}
.drawer-link{display:block;padding:14px 12px;border-radius:12px;font-size:17px;color:rgba(248,247,255,.86);border:1px solid transparent}
.drawer-link:hover{background:rgba(108,92,231,.24);color:#fff}
.drawer-link.active{color:#fff;border-color:rgba(240,199,94,.4);background:rgba(108,92,231,.3)}
.drawer-cta{display:block;text-align:center;margin-top:16px;padding:14px;border-radius:12px;font-weight:600;color:#0E0B1C;background:var(--star-gold)}

/* ---------- 通用组件 ---------- */
.pill{display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;font-size:12.5px;font-weight:600;letter-spacing:.3px}
.pill-gold{background:rgba(240,199,94,.16);color:#8A6B12;border:1px solid rgba(240,199,94,.5)}
.pill-purple{background:rgba(108,92,231,.12);color:#4B3DC4;border:1px solid rgba(108,92,231,.32)}
.pill-cyan{background:rgba(61,217,197,.14);color:#17756A;border:1px solid rgba(61,217,197,.45)}
.pill-dark{background:rgba(255,255,255,.06);color:var(--text-invert-sub);border:1px solid var(--line-dark)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent}
.btn-primary{background:var(--star-purple);color:#fff;box-shadow:0 12px 28px rgba(108,92,231,.32)}
.btn-primary:hover{background:var(--star-purple-soft);transform:translateY(-1px);box-shadow:0 18px 36px rgba(108,92,231,.4)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:transparent;color:var(--star-purple);border-color:var(--star-purple)}
.btn-ghost:hover{background:rgba(108,92,231,.1);transform:translateY(-1px)}
.btn-ghost-dark{background:transparent;color:var(--text-invert);border-color:rgba(255,255,255,.28)}
.btn-ghost-dark:hover{border-color:var(--star-gold);color:var(--star-gold)}
.btn-gold{background:var(--star-gold);color:#0E0B1C;box-shadow:0 12px 28px rgba(240,199,94,.3)}
.btn-gold:hover{background:#F6D67F;transform:translateY(-1px)}
.btn-gold:active{transform:scale(.98)}

.page-title{font-size:clamp(30px,4.6vw,52px);line-height:1.24;letter-spacing:.4px}
.sec-title{font-size:clamp(25px,3.2vw,36px);line-height:1.32}
.sub-title{font-size:clamp(19px,2.1vw,24px);line-height:1.45}
.body-text{font-size:16.5px;line-height:1.9;color:var(--text-sub)}
.muted{font-size:13.5px;color:var(--text-sub);letter-spacing:.2px}
.mono{font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;letter-spacing:.5px}

/* ---------- 页面 Hero ---------- */
.page-hero{position:relative;background:#0E0B1C;padding:148px 0 66px;overflow:hidden}
.page-hero .hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;opacity:.55}
.page-hero .hero-mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,11,28,.86) 0%,rgba(14,11,28,.7) 48%,#0E0B1C 100%)}
.page-hero .hero-stars{position:absolute;inset:0;opacity:.16;background-image:radial-gradient(#F8F7FF 1px,transparent 1px);background-size:34px 34px}
.page-hero .hero-inner{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-invert-sub)}
.crumb a{color:var(--text-invert-sub)}
.crumb a:hover{color:var(--star-gold)}
.crumb .sep{opacity:.5}
.crumb .current{color:var(--star-gold)}

/* ---------- 数据带 ---------- */
.data-band{background:#0E0B1C;padding:52px 0;border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark)}
.data-cell{padding:18px 20px;border-left:1px solid rgba(255,255,255,.14)}
.data-cell:first-child{border-left:none}
.data-num{font-size:clamp(30px,3.6vw,42px);font-weight:700;color:var(--star-gold);line-height:1.1}
.data-num small{font-size:14px;color:var(--text-invert-sub);font-weight:500;margin-left:6px}
.data-cap{font-size:13.5px;color:var(--text-invert-sub);margin-top:8px}

/* ---------- 栏目卡 ---------- */
.topic-card{position:relative;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line-light);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:rgba(108,92,231,.55)}
.topic-card .thumb{position:relative;aspect-ratio:3/2;overflow:hidden}
.topic-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.topic-card:hover .thumb img{transform:scale(1.04)}
.topic-card .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,11,28,0) 40%,rgba(14,11,28,.62) 100%)}
.topic-card .thumb-tag{position:absolute;left:14px;bottom:12px;z-index:2}
.topic-body{padding:22px 24px 26px}
.topic-idx{font-size:13px;font-weight:700;color:var(--star-gold);letter-spacing:1px}

/* ---------- 资讯列表 ---------- */
.news-item{position:relative;display:block;background:#fff;border:1px solid var(--line-light);border-radius:var(--radius-card);padding:24px 26px;box-shadow:var(--shadow-card);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.news-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:rgba(108,92,231,.55)}
.news-item .arrow{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--star-purple);transition:transform .25s ease}
.news-item:hover .arrow{transform:translateX(4px)}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-sub)}

.side-card{background:#fff;border:1px solid var(--line-light);border-radius:var(--radius-card);padding:22px 24px;box-shadow:var(--shadow-card)}
.side-title{font-size:16.5px;font-weight:700;display:flex;align-items:center;gap:8px}
.side-title::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--star-gold)}
.heat-row{padding:12px 0;border-bottom:1px dashed var(--line-light)}
.heat-row:last-child{border-bottom:none}
.heat-top{display:flex;justify-content:space-between;align-items:baseline;gap:12px;font-size:14.5px}
.heat-rank{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:8px;font-size:12px;font-weight:700;background:rgba(108,92,231,.12);color:#4B3DC4;margin-right:8px}
.heat-rank.top{background:rgba(240,199,94,.22);color:#8A6B12}
.heat-bar{height:6px;border-radius:999px;background:var(--line-light);margin-top:9px;overflow:hidden}
.heat-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--star-purple),var(--comet-cyan))}
.tl-item{position:relative;padding:0 0 18px 20px;border-left:1px solid var(--line-light)}
.tl-item:last-child{padding-bottom:0;border-left-color:transparent}
.tl-item::before{content:"";position:absolute;left:-5px;top:7px;width:9px;height:9px;border-radius:50%;background:var(--star-purple);box-shadow:0 0 0 3px rgba(108,92,231,.16)}
.tl-item.gold::before{background:var(--star-gold);box-shadow:0 0 0 3px rgba(240,199,94,.2)}

/* ---------- 步骤条 ---------- */
.step-wrap{display:grid;gap:20px;grid-template-columns:1fr}
@media(min-width:768px){.step-wrap{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.step-wrap{grid-template-columns:repeat(4,1fr)}}
.step-card{position:relative;background:#fff;border:1px solid var(--line-light);border-radius:var(--radius-card);padding:26px 24px;box-shadow:var(--shadow-card);transition:transform .25s ease,border-color .25s ease}
.step-card:hover{transform:translateY(-4px);border-color:rgba(240,199,94,.6)}
.step-no{font-size:14px;font-weight:700;color:var(--star-gold);letter-spacing:1.4px}
.step-line{position:absolute;top:34px;left:calc(100% + 10px);width:calc(100% - 20px);height:1px;background:linear-gradient(90deg,var(--star-gold),rgba(240,199,94,0))}

/* ---------- FAQ ---------- */
.faq-item{background:#fff;border:1px solid var(--line-light);border-radius:16px;margin-bottom:14px;overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease}
.faq-item[open]{border-color:rgba(108,92,231,.65);box-shadow:0 14px 34px rgba(20,15,45,.1)}
.faq-item summary{display:flex;align-items:flex-start;gap:14px;padding:20px 22px;cursor:pointer;list-style:none;font-size:17px;font-weight:600;color:var(--text-main)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";margin-left:auto;font-size:22px;line-height:1;color:var(--star-purple);transition:transform .25s ease}
.faq-item[open] summary::after{content:"−";color:var(--star-gold)}
.faq-num{flex:none;display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:9px;font-size:13px;font-weight:700;background:rgba(108,92,231,.12);color:#4B3DC4}
.faq-answer{padding:0 22px 22px 64px;font-size:15.5px;line-height:1.85;color:var(--text-sub)}

/* ---------- CTA / 表单 ---------- */
.cta-dark{position:relative;background:#0E0B1C;border-radius:24px;overflow:hidden;padding:48px 32px;box-shadow:var(--shadow-dark)}
.cta-dark .cta-arc{position:absolute;right:-120px;top:-120px;width:380px;height:380px;border-radius:50%;border:1px solid rgba(108,92,231,.5);opacity:.7}
.cta-dark .cta-arc2{position:absolute;right:-60px;bottom:-160px;width:320px;height:320px;border-radius:50%;border:1px solid rgba(240,199,94,.35);opacity:.6}
.field-label{display:block;font-size:13.5px;font-weight:600;color:var(--text-invert-sub);margin-bottom:8px}
.field{width:100%;height:48px;padding:0 16px;border-radius:12px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);color:#fff;transition:border-color .2s ease,box-shadow .2s ease}
.field::placeholder{color:rgba(201,196,224,.6)}
.field:focus{outline:none;border-color:var(--star-purple);box-shadow:0 0 0 3px rgba(61,217,197,.3)}
textarea.field{height:auto;padding:14px 16px;resize:vertical;min-height:120px}
select.field{appearance:none;background-image:linear-gradient(45deg,transparent 50%,#C9C4E0 50%),linear-gradient(135deg,#C9C4E0 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.form-hint{margin-top:14px;font-size:13.5px;color:var(--comet-cyan)}

/* ---------- 页脚 ---------- */
.foot-title{font-size:13.5px;font-weight:700;letter-spacing:1.2px;color:var(--star-gold);margin-bottom:16px}
.foot-link{display:block;padding:6px 0;font-size:14.5px;color:var(--text-invert-sub)}
.foot-link:hover{color:var(--star-gold);transform:translateX(2px)}
.foot-bottom{border-top:1px solid var(--line-dark);padding:22px 0 30px;font-size:13px;color:rgba(201,196,224,.75)}

/* ---------- 区块间距 ---------- */
.section{padding:64px 0}
@media(min-width:1024px){.section{padding:96px 0}}
.section-soft{background:#F1EFF9}

/* roulang page: category3 */
:root{
    --purple:#6C5CE7;
    --purple-soft:#7D6EF0;
    --gold:#F0C75E;
    --cyan:#3DD9C5;
    --ink:#0E0B1C;
    --ink-2:#18122E;
    --paper:#F7F6FB;
    --card:#FFFFFF;
    --text:#19152B;
    --muted:#5D5875;
    --line:#E6E2F5;
    --line-dark:rgba(255,255,255,.12);
    --r-btn:12px;
    --r-card:18px;
    --shadow:0 12px 30px rgba(20,15,45,.08);
    --shadow-hover:0 18px 42px rgba(20,15,45,.14);
    --shadow-dark:0 20px 60px rgba(0,0,0,.35);
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body.site{
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
    background:var(--paper);
    color:var(--text);
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  a{text-decoration:none;color:inherit}
  img{max-width:100%;display:block}
  button,input,select,textarea{font-family:inherit;font-size:inherit}
  ul{list-style:none}
  .wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
  @media(min-width:768px){.wrap{padding:0 32px}}

  /* ------- 导航 ------- */
  #siteHeader{position:fixed;top:0;left:0;right:0;z-index:80;transition:background .3s ease,box-shadow .3s ease,border-color .3s ease}
  .nav-glass{
    background:rgba(14,11,28,.42);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border-bottom:1px solid rgba(255,255,255,.12);
    box-shadow:0 10px 30px rgba(6,4,20,.28);
  }
  .nav-solid{
    background:rgba(14,11,28,.96);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border-bottom:1px solid rgba(255,255,255,.14);
    box-shadow:0 14px 34px rgba(0,0,0,.4);
  }
  .logo-mark{
    width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
    background:rgba(108,92,231,.18);
    border:1px solid rgba(240,199,94,.35);
    flex:0 0 auto;
  }
  .nav-link{position:relative;font-size:15px;color:#CFC9E6;padding:9px 14px;border-radius:10px;transition:color .2s ease,background .2s ease}
  .nav-link:hover{color:#fff;background:rgba(255,255,255,.08)}
  .nav-link:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
  .nav-link.active{color:var(--gold)}
  .nav-link.active::after{
    content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
    width:18px;height:2px;border-radius:2px;background:var(--gold);
  }
  .nav-search{
    display:inline-flex;align-items:center;gap:8px;font-size:14px;color:#CFC9E6;
    padding:8px 14px;border-radius:999px;border:1px solid rgba(255,255,255,.18);
    transition:color .2s ease,border-color .2s ease,background .2s ease;
  }
  .nav-search:hover{color:#fff;border-color:rgba(240,199,94,.6);background:rgba(255,255,255,.06)}
  .nav-cta{
    display:inline-flex;align-items:center;background:var(--purple);color:#fff;font-size:14px;font-weight:600;
    padding:10px 18px;border-radius:var(--r-btn);box-shadow:0 8px 20px rgba(108,92,231,.35);
    transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
  }
  .nav-cta:hover{background:var(--purple-soft);transform:translateY(-1px);box-shadow:0 12px 26px rgba(108,92,231,.45)}
  .nav-cta:active{transform:scale(.98)}
  .menu-btn{
    width:42px;height:42px;border-radius:12px;border:1px solid rgba(255,255,255,.2);
    background:rgba(255,255,255,.06);display:grid;place-content:center;gap:5px;cursor:pointer;
  }
  .menu-btn span{display:block;width:18px;height:2px;background:#F8F7FF;border-radius:2px;transition:transform .25s ease,opacity .25s ease}
  .menu-btn.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .menu-btn.open span:nth-child(2){opacity:0}
  .menu-btn.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

  .drawer{
    position:fixed;top:0;right:0;bottom:0;width:84%;max-width:360px;background:var(--ink);
    z-index:95;transform:translateX(100%);transition:transform .32s ease;padding:26px 22px;overflow-y:auto;
    border-left:1px solid var(--line-dark);
  }
  .drawer.open{transform:translateX(0)}
  .drawer-mask{
    position:fixed;inset:0;background:rgba(6,4,20,.6);z-index:90;opacity:0;pointer-events:none;transition:opacity .3s ease;
  }
  .drawer-mask.open{opacity:1;pointer-events:auto}
  .drawer-link{
    display:block;font-size:17px;color:#DCD7F2;padding:15px 4px;border-bottom:1px solid rgba(255,255,255,.08);
    transition:color .2s ease,padding-left .2s ease;
  }
  .drawer-link:hover{color:var(--gold);padding-left:10px}
  .drawer-link.active{color:var(--gold)}

  /* ------- 通用组件 ------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;font-size:15px;
    padding:13px 24px;border-radius:var(--r-btn);border:1px solid transparent;cursor:pointer;
    transition:background .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
  }
  .btn:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
  .btn-primary{background:var(--purple);color:#fff;box-shadow:0 10px 24px rgba(108,92,231,.32)}
  .btn-primary:hover{background:var(--purple-soft);transform:translateY(-1px);box-shadow:0 14px 30px rgba(108,92,231,.42)}
  .btn-primary:active{transform:scale(.98)}
  .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
  .btn-ghost:hover{border-color:var(--gold);color:var(--gold);transform:translateY(-1px)}
  .btn-gold{background:var(--gold);color:var(--ink);box-shadow:0 10px 24px rgba(240,199,94,.28)}
  .btn-gold:hover{background:#f6d377;transform:translateY(-1px)}
  .btn-outline{background:#fff;color:var(--purple);border-color:#DAD5EE}
  .btn-outline:hover{border-color:var(--purple);background:#F4F2FE;transform:translateY(-1px)}

  .pill{display:inline-flex;align-items:center;gap:6px;font-size:13px;padding:5px 13px;border-radius:999px;line-height:1.6}
  .pill-dark{background:rgba(255,255,255,.08);border:1px solid var(--line-dark);color:#C9C4E0}
  .pill-purple{background:rgba(108,92,231,.12);border:1px solid rgba(108,92,231,.28);color:#4B3FC4}
  .pill-gold{background:rgba(240,199,94,.16);border:1px solid rgba(240,199,94,.42);color:#8A6A12}
  .pill-cyan{background:rgba(61,217,197,.14);border:1px solid rgba(61,217,197,.4);color:#137A6C}

  .section{padding:64px 0}
  @media(min-width:1024px){.section{padding:96px 0}}
  .sec-title{font-size:30px;font-weight:700;letter-spacing:.4px;line-height:1.35;color:var(--text)}
  @media(min-width:1024px){.sec-title{font-size:38px}}
  .sec-sub{font-size:16px;color:var(--muted);margin-top:14px;max-width:760px}
  .kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:2px;color:var(--purple);font-weight:600}
  .kicker::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--gold)}

  /* ------- 面包屑 ------- */
  .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:#B8B2D2}
  .crumb a{transition:color .2s ease}
  .crumb a:hover{color:var(--gold)}
  .crumb .sep{opacity:.55}
  .crumb .cur{color:var(--gold)}

  /* ------- Hero ------- */
  .page-hero{
    position:relative;background-color:var(--ink);
    background-image:linear-gradient(180deg,rgba(14,11,28,.88) 0%,rgba(14,11,28,.72) 46%,rgba(14,11,28,.96) 100%),url(/assets/images/backpic/back-2.webp);
    background-size:cover;background-position:center;padding:130px 0 76px;overflow:hidden;
  }
  @media(min-width:1024px){.page-hero{padding:168px 0 96px}}
  .hero-orbit{position:absolute;right:-160px;top:40px;width:520px;height:520px;border-radius:50%;border:1px solid rgba(108,92,231,.22);pointer-events:none}
  .hero-orbit::after{content:"";position:absolute;inset:78px;border-radius:50%;border:1px dashed rgba(240,199,94,.22)}
  .hero-dot{position:absolute;left:-6px;top:50%;width:10px;height:10px;border-radius:50%;background:var(--cyan);box-shadow:0 0 16px var(--cyan)}
  .hero-1{position:relative;z-index:2;max-width:840px}
  .hero-h1{font-size:30px;font-weight:700;color:#F8F7FF;line-height:1.35;margin-top:20px;letter-spacing:.4px}
  @media(min-width:768px){.hero-h1{font-size:42px}}
  @media(min-width:1024px){.hero-h1{font-size:50px}}
  .hero-h1 em{font-style:normal;color:var(--gold)}
  .hero-lead{font-size:16px;color:#C9C4E0;margin-top:18px;max-width:700px;line-height:1.9}
  @media(min-width:768px){.hero-lead{font-size:17.5px}}
  .hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}

  .help-search{
    display:flex;gap:10px;align-items:center;margin-top:30px;max-width:740px;
    background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.18);
    border-radius:16px;padding:10px;
    -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  }
  .help-search .hs-icon{display:grid;place-items:center;padding-left:10px;color:#9C95BE;flex:0 0 auto}
  .help-search input{
    flex:1;min-width:0;background:transparent;border:0;outline:0;color:#fff;padding:8px 6px;font-size:15px;
  }
  .help-search input::placeholder{color:#9C95BE}
  .help-search .btn{flex:0 0 auto}
  @media(max-width:640px){
    .help-search{flex-wrap:wrap}
    .help-search .hs-icon{padding-left:4px}
    .help-search input{width:100%;flex:1 1 100%;padding:8px 4px}
    .help-search .btn{width:100%}
  }

  /* ------- 步骤 ------- */
  .step-item{position:relative;padding:0 0 30px 66px;}
  .step-item:last-child{padding-bottom:0}
  .step-item::before{
    content:"";position:absolute;left:24px;top:52px;bottom:0;width:1px;
    background:linear-gradient(180deg,rgba(108,92,231,.5),rgba(240,199,94,.28),transparent);
  }
  .step-item:last-child::before{display:none}
  .step-num{
    position:absolute;left:0;top:0;width:50px;height:50px;border-radius:16px;display:grid;place-items:center;
    background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);
    font-size:16px;font-weight:700;color:var(--purple);letter-spacing:1px;
  }
  .step-title{font-size:19px;font-weight:700;color:var(--text);padding-top:10px}
  .step-text{font-size:15.5px;color:var(--muted);margin-top:8px;max-width:760px}
  .step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}

  /* ------- 场景卡 ------- */
  .scene-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    padding:26px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
    height:100%;
  }
  .scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(108,92,231,.5)}
  .scene-head{display:flex;align-items:center;gap:12px}
  .scene-ico{
    width:42px;height:42px;border-radius:12px;display:grid;place-items:center;flex:0 0 auto;
    background:rgba(108,92,231,.12);color:var(--purple);
  }
  .scene-title{font-size:18px;font-weight:700;color:var(--text)}
  .scene-list{margin-top:16px;display:grid;gap:10px}
  .scene-list li{position:relative;padding-left:18px;font-size:15px;color:var(--muted);line-height:1.8}
  .scene-list li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--gold)}

  /* ------- 排查清单 ------- */
  .check-panel{
    background:var(--ink-2);border-radius:20px;border:1px solid var(--line-dark);
    overflow:hidden;box-shadow:var(--shadow-dark);
  }
  .check-row{display:flex;gap:16px;padding:20px 24px;border-bottom:1px solid rgba(255,255,255,.08)}
  .check-row:last-child{border-bottom:0}
  .check-idx{font-size:13px;color:var(--gold);letter-spacing:1px;font-weight:700;flex:0 0 34px;padding-top:3px}
  .check-t{font-size:16px;color:#F8F7FF;font-weight:600}
  .check-d{font-size:14.5px;color:#C9C4E0;margin-top:6px;line-height:1.85}
  .cover-frame{border-radius:16px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);background:#fff}
  .cover-frame img{width:100%;height:100%;object-fit:cover}

  /* ------- FAQ ------- */
  .qa-item{
    background:#fff;border:1px solid var(--line);border-radius:16px;margin-bottom:14px;
    transition:border-color .25s ease,box-shadow .25s ease;
  }
  .qa-item[open]{border-color:rgba(108,92,231,.55);box-shadow:var(--shadow)}
  .qa-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:14px;
    padding:20px 22px;font-size:17px;font-weight:600;color:var(--text);
  }
  .qa-item summary::-webkit-details-marker{display:none}
  .qa-item summary:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:16px}
  .qa-idx{font-size:13px;font-weight:700;color:var(--gold);letter-spacing:1px;flex:0 0 auto;padding-top:5px}
  .qa-q{flex:1}
  .qa-sign{position:relative;width:22px;height:22px;flex:0 0 auto;margin-top:2px}
  .qa-sign::before,.qa-sign::after{
    content:"";position:absolute;left:50%;top:50%;background:var(--purple);border-radius:2px;
    transition:transform .25s ease,background .25s ease;
  }
  .qa-sign::before{width:14px;height:2px;transform:translate(-50%,-50%)}
  .qa-sign::after{width:2px;height:14px;transform:translate(-50%,-50%)}
  .qa-item[open] .qa-sign::after{transform:translate(-50%,-50%) scaleY(0)}
  .qa-item[open] .qa-sign::before{background:var(--gold)}
  .qa-a{padding:0 22px 22px 60px;font-size:15.5px;color:var(--muted);line-height:1.9}
  @media(max-width:640px){
    .qa-item summary{padding:18px 16px;font-size:16px}
    .qa-a{padding:0 16px 20px 16px}
  }
  .qa-empty{
    display:none;padding:26px 24px;border:1px dashed rgba(108,92,231,.45);border-radius:16px;
    background:#fff;color:var(--muted);font-size:15px;text-align:center;
  }

  /* ------- 分类导流卡 ------- */
  .nav-card{
    position:relative;display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
    overflow:hidden;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
    height:100%;
  }
  .nav-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(240,199,94,.6)}
  .nav-card .thumb{position:relative;aspect-ratio:3/2;overflow:hidden}
  .nav-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
  .nav-card:hover .thumb img{transform:scale(1.05)}
  .nav-card .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,11,28,.06),rgba(14,11,28,.42))}
  .nav-card .body{padding:22px}
  .nav-card h3{font-size:18px;font-weight:700;color:var(--text)}
  .nav-card p{font-size:14.5px;color:var(--muted);margin-top:8px;line-height:1.8}
  .nav-card .arrow{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;color:var(--purple);font-weight:600;transition:gap .2s ease}
  .nav-card:hover .arrow{gap:12px}

  /* ------- 表单 ------- */
  .cta-band{
    position:relative;background-color:var(--ink);overflow:hidden;
    background-image:linear-gradient(140deg,rgba(14,11,28,.94),rgba(24,18,46,.9)),url(/assets/images/backpic/back-3.png);
    background-size:cover;background-position:center;
  }
  .field{display:block;margin-bottom:16px}
  .field span{display:block;font-size:13.5px;color:#C9C4E0;margin-bottom:8px}
  .field input,.field select,.field textarea{
    width:100%;height:48px;border-radius:12px;border:1px solid rgba(255,255,255,.18);
    background:rgba(255,255,255,.06);color:#fff;padding:0 14px;outline:none;
    transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
  }
  .field textarea{height:auto;min-height:132px;padding:12px 14px;line-height:1.8;resize:vertical}
  .field select option{color:#19152B}
  .field input::placeholder,.field textarea::placeholder{color:#8E88AE}
  .field input:focus,.field select:focus,.field textarea:focus{
    border-color:var(--purple);background:rgba(255,255,255,.1);
    box-shadow:0 0 0 3px rgba(61,217,197,.35);
  }
  .form-note{font-size:13px;color:#9C95BE;margin-top:12px}
  .form-msg{display:none;margin-top:14px;font-size:14px;color:var(--cyan)}
  .form-msg.show{display:block}

  /* ------- 页脚 ------- */
  .foot-title{font-size:14px;font-weight:700;color:#F8F7FF;letter-spacing:1px;margin-bottom:16px}
  .foot-link{display:block;font-size:14.5px;color:#B8B2D2;padding:6px 0;transition:color .2s ease,transform .2s ease}
  a.foot-link:hover{color:var(--gold);transform:translateX(3px)}
  .foot-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:46px;padding-top:22px}

  /* ------- 动效 ------- */
  @media (prefers-reduced-motion: reduce){
    *{animation:none!important;transition:none!important}
  }

/* roulang page: category4 */
:root{
    --violet:#6C5CE7;
    --gold:#F0C75E;
    --cyan:#3DD9C5;
    --ink:#0E0B1C;
    --darkcard:#18122E;
    --paper:#F7F6FB;
    --card:#FFFFFF;
    --line:#E6E2F5;
    --line-dark:rgba(255,255,255,.12);
    --text:#19152B;
    --muted:#5D5875;
    --muted-dark:#C9C4E0;
    --radius-btn:12px;
    --radius-card:18px;
    --shadow-card:0 12px 30px rgba(20,15,45,.08);
    --shadow-card-hover:0 20px 46px rgba(20,15,45,.16);
    --shadow-dark:0 20px 60px rgba(0,0,0,.35);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
    background:var(--paper);
    color:var(--text);
    font-size:17px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease;}
  img{max-width:100%;display:block;}
  button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
  h1,h2,h3,h4,p,ul,ol{margin:0;}
  ul,ol{list-style:none;padding:0;}
  .sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;}

  .wrap{width:100%;max-width:1220px;margin:0 auto;padding-left:20px;padding-right:20px;}
  @media (min-width:1024px){ .wrap{padding-left:32px;padding-right:32px;} }

  /* ---------- 导航 ---------- */
  #siteHeader{
    position:fixed;top:0;left:0;right:0;z-index:60;
    background:rgba(14,11,28,.42);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border-bottom:1px solid rgba(255,255,255,.12);
    box-shadow:0 8px 30px rgba(6,4,18,.28);
    transition:background .3s ease,box-shadow .3s ease;
  }
  #siteHeader.scrolled{
    background:rgba(14,11,28,.96);
    box-shadow:0 14px 40px rgba(0,0,0,.45);
  }
  .logo-mark{
    width:38px;height:38px;border-radius:12px;
    display:inline-flex;align-items:center;justify-content:center;
    background:rgba(108,92,231,.18);
    border:1px solid rgba(240,199,94,.28);
    flex:0 0 auto;
  }
  .nav-link{
    display:inline-block;
    padding:9px 15px;border-radius:999px;
    font-size:15px;color:rgba(248,247,255,.82);
    letter-spacing:.01em;
  }
  .nav-link:hover{color:#fff;background:rgba(108,92,231,.26);}
  .nav-link.active{color:#fff;background:rgba(108,92,231,.36);box-shadow:inset 0 0 0 1px rgba(240,199,94,.34);}
  .nav-search{
    display:inline-flex;align-items:center;gap:7px;
    padding:9px 15px;border-radius:999px;
    font-size:14px;color:rgba(248,247,255,.78);
    border:1px solid rgba(255,255,255,.16);
    transition:border-color .22s ease,color .22s ease,background .22s ease;
  }
  .nav-search:hover{color:#fff;border-color:rgba(61,217,197,.6);background:rgba(61,217,197,.1);}
  .nav-cta{
    display:inline-block;padding:10px 20px;border-radius:var(--radius-btn);
    font-size:14.5px;font-weight:600;color:#0E0B1C;
    background:var(--gold);
    box-shadow:0 10px 24px rgba(240,199,94,.24);
    transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
  }
  .nav-cta:hover{background:#f6d478;transform:translateY(-1px);box-shadow:0 14px 30px rgba(240,199,94,.32);}
  .nav-cta:active{transform:scale(.98);}
  .menu-btn{
    width:44px;height:44px;border-radius:12px;
    border:1px solid rgba(255,255,255,.16);
    background:rgba(255,255,255,.06);
    display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
    cursor:pointer;
  }
  .menu-btn span{display:block;width:19px;height:2px;border-radius:2px;background:#F8F7FF;transition:transform .25s ease,opacity .25s ease;}
  .menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0;}
  .menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

  .drawer{
    position:fixed;top:0;right:0;bottom:0;width:82%;max-width:340px;z-index:80;
    background:#0E0B1C;border-left:1px solid rgba(255,255,255,.12);
    transform:translateX(102%);transition:transform .32s ease;
    display:flex;flex-direction:column;padding:26px 22px 30px;
    overflow-y:auto;
  }
  .drawer.open{transform:translateX(0);}
  .drawer a.drawer-link{
    display:block;padding:14px 4px;font-size:19px;color:#F8F7FF;
    border-bottom:1px solid rgba(255,255,255,.08);
  }
  .drawer a.drawer-link.active{color:var(--gold);}
  .drawer-mask{
    position:fixed;inset:0;background:rgba(6,4,18,.6);z-index:70;opacity:0;pointer-events:none;
    transition:opacity .3s ease;
  }
  .drawer-mask.open{opacity:1;pointer-events:auto;}

  /* ---------- 通用组件 ---------- */
  .eyebrow{
    display:inline-flex;align-items:center;gap:9px;
    font-size:13px;letter-spacing:.14em;color:var(--violet);font-weight:600;
  }
  .eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--gold);}
  .pill{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 13px;border-radius:999px;font-size:13px;
    border:1px solid var(--line);background:#fff;color:var(--muted);
  }
  .pill-dark{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.14);color:#C9C4E0;}
  .pill-gold{background:rgba(240,199,94,.14);border-color:rgba(240,199,94,.4);color:#8a6b16;}
  .pill-cyan{background:rgba(61,217,197,.14);border-color:rgba(61,217,197,.42);color:#1c7f74;}
  .pill-violet{background:rgba(108,92,231,.12);border-color:rgba(108,92,231,.34);color:#4b3fc0;}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 26px;border-radius:var(--radius-btn);
    font-size:15.5px;font-weight:600;cursor:pointer;border:1px solid transparent;
    transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  }
  .btn:active{transform:scale(.98);}
  .btn-primary{background:var(--violet);color:#fff;box-shadow:0 12px 28px rgba(108,92,231,.3);}
  .btn-primary:hover{background:#7d6ef0;transform:translateY(-1px);box-shadow:0 16px 34px rgba(108,92,231,.38);}
  .btn-ghost{background:transparent;color:var(--violet);border-color:rgba(108,92,231,.5);}
  .btn-ghost:hover{background:rgba(108,92,231,.08);border-color:var(--violet);transform:translateY(-1px);}
  .btn-gold{background:var(--gold);color:#0E0B1C;box-shadow:0 14px 30px rgba(240,199,94,.26);}
  .btn-gold:hover{background:#f6d478;transform:translateY(-1px);}
  .btn-darkline{background:transparent;color:#F8F7FF;border-color:rgba(255,255,255,.28);}
  .btn-darkline:hover{border-color:var(--cyan);color:#fff;background:rgba(61,217,197,.12);}

  .card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
  }
  .card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:rgba(108,92,231,.42);}
  .card-dark{
    background:var(--darkcard);border:1px solid var(--line-dark);border-radius:var(--radius-card);
    box-shadow:var(--shadow-dark);
  }
  .card-media{position:relative;overflow:hidden;border-radius:16px;}
  .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
  .card:hover .card-media img{transform:scale(1.04);}
  .card-media::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(14,11,28,0) 40%,rgba(14,11,28,.55) 100%);
    pointer-events:none;
  }
  .num-badge{
    width:42px;height:42px;border-radius:12px;flex:0 0 auto;
    display:inline-flex;align-items:center;justify-content:center;
    font-size:14px;font-weight:700;letter-spacing:.04em;
    background:rgba(108,92,231,.1);color:var(--violet);
    border:1px solid rgba(108,92,231,.24);
  }
  .num-badge-dark{background:rgba(240,199,94,.14);color:var(--gold);border-color:rgba(240,199,94,.34);}

  .sec{padding:68px 0;}
  @media (min-width:1024px){ .sec{padding:100px 0;} }
  .sec-title{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:-.01em;}
  @media (min-width:1024px){ .sec-title{font-size:37px;} }
  .sec-sub{color:var(--muted);font-size:16.5px;line-height:1.85;}

  .star-line{
    height:1px;width:100%;
    background:linear-gradient(90deg,rgba(108,92,231,0) 0%,rgba(108,92,231,.5) 30%,rgba(240,199,94,.7) 60%,rgba(61,217,197,0) 100%);
  }

  /* ---------- Hero ---------- */
  .hero{
    position:relative;overflow:hidden;background:#0E0B1C;
    padding-top:118px;padding-bottom:64px;
  }
  @media (min-width:1024px){ .hero{padding-top:158px;padding-bottom:88px;} }
  .hero-bg{
    position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;background-position:center;
    opacity:.55;
  }
  .hero-mask{
    position:absolute;inset:0;
    background:linear-gradient(120deg,rgba(14,11,28,.96) 0%,rgba(14,11,28,.82) 45%,rgba(24,18,46,.7) 100%);
  }
  .hero-orbit{
    position:absolute;border-radius:50%;border:1px solid rgba(108,92,231,.3);
    pointer-events:none;
  }
  .hero-arc{position:absolute;right:-160px;top:-120px;width:520px;height:520px;border-radius:50%;
    border:1px solid rgba(240,199,94,.22);pointer-events:none;}
  .hero-arc::after{content:"";position:absolute;inset:70px;border-radius:50%;border:1px dashed rgba(61,217,197,.24);}
  .hero-dots{
    position:absolute;inset:0;opacity:.14;pointer-events:none;
    background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
    background-size:26px 26px;
  }
  .hero h1{color:#F8F7FF;font-size:31px;line-height:1.28;font-weight:700;letter-spacing:-.015em;}
  @media (min-width:768px){ .hero h1{font-size:42px;} }
  @media (min-width:1024px){ .hero h1{font-size:50px;} }
  .hero p.lead{color:#C9C4E0;font-size:16.5px;line-height:1.85;}

  .crumb{font-size:13.5px;color:#9d97bd;display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
  .crumb a:hover{color:var(--gold);}
  .crumb .now{color:var(--gold);}
  .crumb .sep{opacity:.6;}

  .shield-wrap{
    position:relative;border-radius:20px;overflow:hidden;
    border:1px solid rgba(255,255,255,.14);
    background:radial-gradient(circle at 30% 20%,rgba(108,92,231,.35),rgba(24,18,46,.9));
    padding:26px;
  }
  .scale-row{display:flex;align-items:center;gap:10px;font-size:12.5px;color:#9d97bd;}
  .scale-tick{flex:1;height:1px;background:linear-gradient(90deg,rgba(240,199,94,.06),rgba(240,199,94,.6),rgba(240,199,94,.06));}

  /* ---------- 清单 ---------- */
  .check-item{
    display:flex;gap:13px;align-items:flex-start;
    padding:15px 0;border-bottom:1px dashed var(--line);
  }
  .check-item:last-child{border-bottom:none;}
  .checkbox{
    appearance:none;width:21px;height:21px;flex:0 0 auto;margin-top:4px;
    border:1.5px solid #C9C2E6;border-radius:6px;background:#fff;cursor:pointer;
    transition:border-color .2s ease,background .2s ease;position:relative;
  }
  .checkbox:checked{background:var(--violet);border-color:var(--violet);}
  .checkbox:checked::after{
    content:"";position:absolute;left:6px;top:2px;width:6px;height:11px;
    border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg);
  }
  .checkbox:focus-visible{outline:3px solid rgba(61,217,197,.55);outline-offset:2px;}

  .step-item{position:relative;padding-left:34px;padding-bottom:28px;border-left:1px solid var(--line);}
  .step-item:last-child{border-left-color:transparent;padding-bottom:0;}
  .step-item::before{
    content:"";position:absolute;left:-7px;top:6px;width:13px;height:13px;border-radius:50%;
    background:#fff;border:3px solid var(--violet);
  }
  .step-item .step-num{font-size:12.5px;letter-spacing:.16em;color:var(--gold);font-weight:700;}

  /* ---------- FAQ ---------- */
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;
    transition:border-color .24s ease,box-shadow .24s ease;
  }
  .faq-item + .faq-item{margin-top:14px;}
  .faq-item.open{border-color:rgba(108,92,231,.6);box-shadow:0 14px 32px rgba(108,92,231,.12);}
  .faq-q{
    width:100%;display:flex;align-items:center;gap:14px;text-align:left;
    padding:18px 20px;background:transparent;border:none;cursor:pointer;
  }
  .faq-q h3{font-size:17px;font-weight:600;line-height:1.55;color:var(--text);}
  .faq-no{
    flex:0 0 auto;width:30px;height:30px;border-radius:9px;
    display:inline-flex;align-items:center;justify-content:center;
    font-size:12.5px;font-weight:700;color:var(--violet);
    background:rgba(108,92,231,.1);border:1px solid rgba(108,92,231,.2);
  }
  .faq-sign{
    margin-left:auto;flex:0 0 auto;width:26px;height:26px;border-radius:50%;
    display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);color:var(--violet);font-size:17px;line-height:1;
    transition:transform .28s ease,background .28s ease,border-color .28s ease,color .28s ease;
  }
  .faq-item.open .faq-sign{transform:rotate(180deg);background:var(--violet);border-color:var(--violet);color:#fff;}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease;}
  .faq-a-inner{padding:0 20px 20px 64px;color:var(--muted);font-size:15.5px;line-height:1.85;}
  .faq-q:focus-visible{outline:3px solid rgba(61,217,197,.5);outline-offset:-3px;}

  /* ---------- 表单 ---------- */
  .field-label{display:block;font-size:14.5px;font-weight:600;color:#EFEBFF;margin-bottom:8px;}
  .field{
    width:100%;height:48px;padding:0 15px;
    border-radius:12px;border:1px solid #DAD5EE;background:#fff;color:var(--text);
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  textarea.field{height:auto;min-height:132px;padding:13px 15px;line-height:1.75;resize:vertical;}
  select.field{appearance:none;background-image:linear-gradient(45deg,transparent 50%,#5D5875 50%),linear-gradient(135deg,#5D5875 50%,transparent 50%);
    background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
  .field:focus{outline:none;border-color:var(--violet);box-shadow:0 0 0 4px rgba(61,217,197,.28);}

  /* ---------- 数据带 ---------- */
  .stat-num{font-size:34px;font-weight:700;color:#fff;letter-spacing:-.02em;line-height:1.1;}
  @media (min-width:1024px){ .stat-num{font-size:42px;} }
  .stat-num .unit{font-size:15px;font-weight:600;color:var(--gold);margin-left:4px;}
  .stat-note{color:#C9C4E0;font-size:14px;line-height:1.75;}

  /* ---------- 表格 ---------- */
  .table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:#fff;-webkit-overflow-scrolling:touch;}
  table.risk-table{width:100%;min-width:640px;border-collapse:collapse;font-size:15px;}
  table.risk-table th,table.risk-table td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line);}
  table.risk-table th{background:#F4F2FB;font-weight:600;color:var(--text);font-size:14.5px;}
  table.risk-table td{color:var(--muted);}
  table.risk-table tr:last-child td{border-bottom:none;}

  /* ---------- 页脚 ---------- */
  .foot-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;letter-spacing:.02em;}
  .foot-link{color:#B8B2D2;font-size:14.5px;line-height:2.1;display:inline-block;}
  .foot-link:hover{color:var(--gold);}

  a:focus-visible,button:focus-visible{outline:3px solid rgba(61,217,197,.6);outline-offset:2px;}