/* roulang page: index */
:root{
    --brand-600:#1470A8;
    --brand-700:#0E5580;
    --brand-50:#E8F2F9;
    --accent-600:#F26A21;
    --accent-700:#D9550F;
    --green:#17A673;
    --ink-900:#0E2233;
    --ink-600:#3E5266;
    --ink-400:#7A8B99;
    --line:#E2EAF1;
    --bg:#F5F8FB;
    --surface:#FFFFFF;
    --radius-card:16px;
    --radius-lg:24px;
    --shadow-sm:0 1px 2px rgba(14,34,51,.04), 0 1px 3px rgba(14,34,51,.03);
    --shadow-hover:0 16px 36px -18px rgba(14,85,128,.28);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink-600);
    font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;height:auto;}
  a{color:inherit;text-decoration:none;}
  button,input,textarea,select{font:inherit;color:inherit;}
  h1,h2,h3,h4,p,ul,ol,dl,dd{margin:0;}
  ul,ol{padding:0;list-style:none;}
  .num{font-variant-numeric:tabular-nums;}
  .container-x{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
  @media (min-width:768px){ .container-x{padding-left:32px;padding-right:32px;} }
  @media (min-width:1280px){ .container-x{max-width:1200px;} }
  @media (min-width:1024px) and (max-width:1279px){ .container-x{max-width:1140px;} }

  /* 区块节奏 */
  .section{padding-top:48px;padding-bottom:48px;}
  @media (min-width:1024px){ .section{padding-top:88px;padding-bottom:88px;} }
  .section-tight{padding-top:40px;padding-bottom:40px;}
  @media (min-width:1024px){ .section-tight{padding-top:64px;padding-bottom:64px;} }

  /* 标题装饰 */
  .sec-title{position:relative;padding-left:14px;color:var(--ink-900);font-weight:700;letter-spacing:0;line-height:1.35;font-size:clamp(22px,2.4vw,30px);}
  .sec-title::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:22px;background:var(--accent-600);border-radius:2px;}
  .track-line{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .track-line i{display:block;width:34px;height:3px;background:var(--accent-600);border-radius:2px;}
  .track-line span{display:block;flex:1;max-width:86px;height:1px;background:var(--line);}

  /* 卡片 */
  .card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);transition:transform .3s ease-out, box-shadow .3s ease-out, border-color .3s ease-out;}
  .card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#CFE0EC;}
  .card-media{overflow:hidden;border-radius:12px;}
  .card-media img{transition:transform .5s ease-out;}
  .card:hover .card-media img{transform:scale(1.05);}

  /* 按钮 */
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:10px;font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;transition:all .25s ease-out;}
  .btn-primary{background:var(--accent-600);color:#fff;box-shadow:0 10px 24px -10px rgba(242,106,33,.55);}
  .btn-primary:hover{background:var(--accent-700);transform:translateY(-2px);box-shadow:0 14px 28px -10px rgba(242,106,33,.62);}
  .btn-primary:active{transform:translateY(0) scale(.99);}
  .btn-ghost{background:#fff;border-color:#CFE0EC;color:var(--brand-600);}
  .btn-ghost:hover{border-color:var(--brand-600);background:var(--brand-50);}
  .btn:focus-visible{outline:none;box-shadow:0 0 0 4px rgba(242,106,33,.28);}
  .btn-ghost:focus-visible{box-shadow:0 0 0 4px rgba(20,112,168,.16);}
  .link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-size:14px;font-weight:600;transition:color .2s ease-out;}
  .link-arrow svg{transition:transform .2s ease-out;}
  .link-arrow:hover{color:var(--accent-600);}
  .link-arrow:hover svg{transform:translateX(2px);}

  /* 标签 */
  .tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:500;}
  .tag-brand{background:var(--brand-50);color:var(--brand-600);}
  .tag-green{background:#E6F6F0;color:var(--green);}
  .tag-warm{background:#FDF1E9;color:var(--accent-700);}

  /* 列表条目 */
  .news-item{position:relative;padding:16px 16px 16px 18px;border-radius:12px;transition:background .2s ease-out;}
  .news-item::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:0;border-radius:2px;background:var(--brand-600);transition:width .2s ease-out;}
  .news-item:hover{background:#F5F9FC;}
  .news-item:hover::before{width:3px;}
  .link-underline{position:relative;color:var(--ink-900);transition:color .2s ease-out;}
  .link-underline::after{content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;background:var(--accent-600);transition:width .25s ease-out;}
  .news-item:hover .link-underline{color:var(--brand-600);}
  .news-item:hover .link-underline::after{width:100%;}

  /* 导航 */
  .nav-link{position:relative;display:inline-flex;align-items:center;height:64px;font-size:15px;font-weight:500;color:var(--ink-600);transition:color .2s ease-out;}
  .nav-link:hover{color:var(--brand-600);}
  .nav-link.active{color:var(--brand-600);}
  .nav-link.active::after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:14px;width:60%;height:2px;border-radius:2px;background:var(--accent-600);}
  .nav-link:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:4px;}
  header.scrolled{box-shadow:0 6px 20px -14px rgba(14,85,128,.35);}

  /* 胶囊横滑 */
  .scroll-x{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
  .scroll-x::-webkit-scrollbar{display:none;}
  .pill{flex:0 0 auto;display:inline-flex;align-items:center;gap:6px;height:38px;padding:0 16px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:14px;color:var(--ink-600);transition:all .2s ease-out;}
  .pill:hover{border-color:var(--brand-600);color:var(--brand-600);background:var(--brand-50);}

  /* 抽屉 */
  #drawer{transition:transform .3s ease-out;}
  .drawer-link{display:flex;align-items:center;height:48px;padding:0 20px;font-size:15px;color:var(--ink-600);border-bottom:1px solid var(--line);}
  .drawer-link.active{background:var(--brand-50);color:var(--brand-600);font-weight:600;box-shadow:inset 3px 0 0 var(--accent-600);}

  /* FAQ */
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item:last-child{border-bottom:none;}
  .faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 4px;text-align:left;background:none;border:none;font-size:16px;font-weight:600;color:var(--ink-900);cursor:pointer;}
  .faq-q:focus-visible{outline:2px solid var(--brand-600);outline-offset:-2px;border-radius:8px;}
  .faq-icon{flex:0 0 auto;width:28px;height:28px;border-radius:999px;background:var(--brand-50);color:var(--brand-700);display:flex;align-items:center;justify-content:center;font-size:16px;line-height:1;transition:transform .3s ease-out;}
  .faq-item.open .faq-icon{transform:rotate(45deg);}
  .faq-a{overflow:hidden;max-height:0;transition:max-height .3s ease-out;}
  .faq-a p{padding:0 44px 20px 4px;font-size:15px;color:var(--ink-600);}

  /* 表单 */
  .field-label{display:block;font-size:13px;font-weight:600;color:var(--ink-900);margin-bottom:6px;}
  .field-input{width:100%;height:48px;padding:0 14px;border-radius:10px;border:1px solid #D6E3EC;background:#fff;font-size:16px;transition:border-color .2s ease-out, box-shadow .2s ease-out;}
  .field-input::placeholder{color:#9AAAB6;}
  .field-input:focus{outline:none;border-color:var(--brand-600);box-shadow:0 0 0 4px rgba(20,112,168,.12);}

  /* 图位 */
  .ratio-43{aspect-ratio:4/3;}
  .ratio-1610{aspect-ratio:16/10;}
  .ratio-32{aspect-ratio:3/2;}
  .img-fallback{background:var(--brand-50);display:flex;align-items:center;justify-content:center;color:var(--brand-600);}

  /* 点阵装饰 */
  .dot-grid{background-image:radial-gradient(rgba(20,112,168,.18) 1.5px, transparent 1.5px);background-size:16px 16px;}

  @media (max-width:767px){
    body{font-size:15.5px;}
    .section{padding-top:48px;padding-bottom:48px;}
    .card{padding:18px;}
  }

/* roulang page: article */
:root{
  --brand-600:#1470A8;
  --brand-700:#0E5580;
  --brand-50:#E8F2F9;
  --accent-600:#F26A21;
  --accent-700:#D9550F;
  --support-green:#17A673;
  --warning-soft:#FDF1E9;
  --ink-900:#0E2233;
  --ink-600:#3E5266;
  --ink-400:#7A8B99;
  --line:#E2EAF1;
  --bg:#F5F8FB;
  --surface:#FFFFFF;
  --radius-card:16px;
  --radius-lg:24px;
  --radius-btn:10px;
  --shadow-sm:0 1px 2px rgba(14,34,51,.04), 0 1px 3px rgba(14,34,51,.03);
  --shadow-hover:0 16px 36px -18px rgba(14,85,128,.28);
  --container:1200px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  background:var(--bg);
  color:var(--ink-600);
  font-size:16px;
  line-height:1.75;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:4px;}

.container-x{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:768px){.container-x{padding-left:32px;padding-right:32px;}}
@media (max-width:1279px){:root{--container:1140px;}}

/* ---------- 顶部工具条 ---------- */
.toolbar{background:var(--brand-700);color:#fff;font-size:13px;}
.toolbar-inner{display:flex;align-items:center;justify-content:space-between;height:36px;gap:16px;}
.toolbar-text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.toolbar-links{display:flex;align-items:center;gap:18px;flex-shrink:0;}
.toolbar-links a{color:rgba(255,255,255,.82);transition:color .2s ease;}
.toolbar-links a:hover{color:#fff;}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);}
.site-header.scrolled{box-shadow:0 6px 22px -16px rgba(14,34,51,.4);background:rgba(255,255,255,.94);backdrop-filter:blur(8px);}
.navbar{display:flex;align-items:center;justify-content:space-between;height:64px;gap:24px;}
.logo{display:flex;align-items:center;gap:10px;}
.logo-mark{width:24px;height:24px;border-radius:8px;background:var(--brand-600);display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.logo-text{font-size:16px;font-weight:700;color:var(--ink-900);letter-spacing:0;}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--ink-600);padding:6px 0;transition:color .2s ease;}
.nav-link:hover{color:var(--brand-600);}
.nav-link.active{color:var(--brand-600);}
.nav-link.active::after{content:"";position:absolute;left:0;right:auto;bottom:-4px;width:60%;height:2px;border-radius:2px;background:var(--accent-600);}
.nav-link::after{content:"";position:absolute;left:0;bottom:-4px;width:0;height:2px;border-radius:2px;background:var(--accent-600);transition:width .25s ease-out;}
.nav-link:hover::after{width:60%;}

/* ---------- 按钮 ---------- */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border:none;cursor:pointer;
  background:var(--accent-600);color:#fff;font-size:15px;font-weight:600;
  border-radius:var(--radius-btn);
  box-shadow:0 10px 24px -10px rgba(242,106,33,.55);
  transition:background .25s ease-out, transform .25s ease-out, box-shadow .25s ease-out;
}
.btn-primary:hover{background:var(--accent-700);transform:translateY(-2px);box-shadow:0 16px 30px -12px rgba(217,85,15,.6);}
.btn-primary:active{transform:translateY(0) scale(.99);}
.btn-primary:focus-visible{outline:none;box-shadow:0 0 0 4px rgba(242,106,33,.28);}
.btn-secondary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 22px;cursor:pointer;background:#fff;color:var(--brand-600);
  font-size:15px;font-weight:600;border:1.5px solid #CFE0EC;border-radius:var(--radius-btn);
  transition:border-color .25s ease-out, background .25s ease-out, transform .25s ease-out;
}
.btn-secondary:hover{border-color:var(--brand-600);background:var(--brand-50);transform:translateY(-2px);}
.btn-secondary:active{transform:translateY(0) scale(.99);}
.btn-secondary:focus-visible{outline:none;box-shadow:0 0 0 4px rgba(20,112,168,.14);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 20px;
  background:transparent;color:#fff;border:1px solid rgba(255,255,255,.45);border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;cursor:pointer;transition:background .25s ease-out,color .25s ease-out;
}
.btn-ghost:hover{background:#fff;color:var(--brand-700);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-size:14px;font-weight:600;}
.link-arrow svg{transition:transform .2s ease-out;}
.link-arrow:hover{color:var(--accent-600);}
.link-arrow:hover svg{transform:translateX(3px);}

/* ---------- 标签 ---------- */
.tag{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:4px 12px;font-size:12.5px;font-weight:500;line-height:1.6;}
.tag-cat{background:var(--brand-50);color:var(--brand-600);}
.tag-state{background:#E6F6F0;color:var(--support-green);}
.tag-warn{background:var(--warning-soft);color:var(--accent-700);}
.tag-plain{background:#fff;color:var(--ink-600);border:1px solid var(--line);}
.tag-link{background:#fff;color:var(--ink-600);border:1px solid var(--line);transition:all .2s ease-out;}
.tag-link:hover{border-color:var(--brand-600);color:var(--brand-600);background:var(--brand-50);}
.tag-link.current{background:var(--accent-600);border-color:var(--accent-600);color:#fff;}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--ink-400);}
.crumb a{color:var(--ink-400);transition:color .2s ease;}
.crumb a:hover{color:var(--brand-600);}
.crumb .sep{color:#C4D3DE;}
.crumb .current{color:var(--brand-600);font-weight:600;max-width:min(60vw,360px);overflow:hidden;white-space:nowrap;text-overflow:ellipsis;}

/* ---------- 文章头 ---------- */
.article-head{padding:26px 0 20px;}
.article-title{
  font-size:clamp(26px,3.4vw,38px);line-height:1.3;font-weight:700;color:var(--ink-900);
  letter-spacing:0;margin-top:16px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:16px;font-size:13px;color:var(--ink-400);}
.article-meta .dot{color:#C4D3DE;}
.head-rule{position:relative;height:1px;background:var(--line);margin-top:20px;}
.head-rule::before{content:"";position:absolute;left:0;top:0;width:40px;height:1px;background:var(--accent-600);}

/* ---------- 正文排版 ---------- */
.article-content{max-width:780px;font-size:16px;line-height:1.9;color:var(--ink-600);word-break:break-word;}
.article-content p{margin:0 0 1.1em;}
.article-content h2{
  position:relative;font-size:22px;line-height:1.5;font-weight:700;color:var(--ink-900);
  margin:32px 0 12px;padding-left:14px;
}
.article-content h2::before{content:"";position:absolute;left:0;top:7px;width:4px;height:20px;border-radius:2px;background:var(--brand-600);}
.article-content h3{font-size:18px;line-height:1.6;font-weight:600;color:var(--ink-900);margin:24px 0 8px;}
.article-content h4{font-size:16px;font-weight:600;color:var(--ink-900);margin:20px 0 8px;}
.article-content ul{margin:0 0 1.1em;}
.article-content ul li{position:relative;padding-left:18px;margin-bottom:8px;}
.article-content ul li::before{content:"";position:absolute;left:0;top:.75em;width:6px;height:6px;border-radius:50%;background:var(--brand-600);}
.article-content ol{margin:0 0 1.1em;padding-left:22px;list-style:decimal;}
.article-content ol li{margin-bottom:8px;}
.article-content blockquote{
  margin:0 0 1.2em;padding:14px 18px;background:var(--brand-50);border-left:3px solid var(--brand-600);
  border-radius:0 10px 10px 0;font-size:15px;color:var(--ink-600);
}
.article-content img{border-radius:12px;margin:1.2em auto;}
.article-content figure{margin:1.4em 0;}
.article-content figcaption{font-size:13px;color:var(--ink-400);text-align:center;margin-top:8px;}
.article-content a{color:var(--brand-600);text-decoration:underline;text-decoration-style:dashed;text-decoration-thickness:1px;text-underline-offset:3px;}
.article-content a:hover{color:var(--accent-600);text-decoration-style:solid;}
.article-content table{width:100%;border-collapse:collapse;margin:1.2em 0;font-size:15px;}
.article-content th,.article-content td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-content th{background:var(--brand-50);color:var(--ink-900);font-weight:600;}
.article-content tbody tr:nth-child(even){background:#FAFCFE;}
.article-content strong{color:var(--ink-900);font-weight:600;}

.note-strip{
  display:flex;gap:12px;align-items:flex-start;background:var(--warning-soft);
  border:1px solid #F6DFCD;border-radius:12px;padding:12px 16px;margin:0 0 26px;font-size:14px;color:#8A4A1B;
}
.note-strip svg{flex-shrink:0;margin-top:3px;}

.empty-state{
  border:1px dashed var(--line);background:#fff;border-radius:var(--radius-card);
  padding:48px 24px;text-align:center;
}
.empty-icon{
  width:56px;height:56px;border-radius:50%;background:var(--brand-50);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;margin:0 auto 16px;
}
.empty-state h2{font-size:18px;font-weight:700;color:var(--ink-900);}
.empty-state p{margin-top:8px;font-size:14px;color:var(--ink-400);}
.empty-state .btn-secondary{margin-top:20px;}

/* ---------- 卡片 ---------- */
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);transition:transform .3s ease-out, box-shadow .3s ease-out, border-color .3s ease-out;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D3E3EF;}
.card-media{overflow:hidden;border-radius:12px;background:var(--brand-50);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease-out;}
.card:hover .card-media img{transform:scale(1.05);}
.card-title{font-size:17px;font-weight:600;line-height:1.55;color:var(--ink-900);transition:color .2s ease-out;}
.card:hover .card-title{color:var(--brand-600);}
.card-desc{font-size:14px;line-height:1.8;color:var(--ink-400);}

/* ---------- 列表条目 ---------- */
.list-item{position:relative;display:block;padding:14px 14px 14px 16px;border-radius:10px;transition:background .2s ease-out;}
.list-item::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:0;border-radius:2px;background:var(--brand-600);transition:width .2s ease-out;}
.list-item:hover{background:#F5F9FC;}
.list-item:hover::before{width:3px;}
.list-item .li-title{font-size:14.5px;font-weight:500;color:var(--ink-600);line-height:1.6;transition:color .2s ease-out;}
.list-item:hover .li-title{color:var(--brand-600);}

/* ---------- 侧栏 ---------- */
.side-block{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:20px;box-shadow:var(--shadow-sm);}
.side-title{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--ink-900);margin-bottom:14px;}
.side-title::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--accent-600);}
.side-nav-link{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;border-radius:10px;font-size:14px;color:var(--ink-600);transition:background .2s ease-out,color .2s ease-out;}
.side-nav-link:hover{background:var(--brand-50);color:var(--brand-600);}
.side-nav-link.current{background:var(--brand-50);color:var(--brand-600);font-weight:600;border-left:3px solid var(--brand-600);}
.rank-num{width:24px;height:24px;border-radius:8px;background:var(--brand-50);color:var(--brand-700);font-size:12.5px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.rank-num.top{background:var(--accent-600);color:#fff;}
.cta-side{background:var(--brand-700);border-radius:var(--radius-card);padding:22px;color:#fff;}
.cta-side h3{font-size:17px;font-weight:700;color:#fff;}
.cta-side p{margin-top:8px;font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.78);}
.cta-side .btn-primary{margin-top:16px;width:100%;}

/* ---------- 分栏布局 ---------- */
.layout-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:1024px){
  .layout-grid{grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:40px;}
  .side-sticky{position:sticky;top:96px;}
}

/* ---------- 文末 / 相关阅读 ---------- */
.section{padding:56px 0;}
@media (min-width:1024px){.section{padding:80px 0;}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px;}
.h2-deco{position:relative;padding-left:16px;font-size:clamp(22px,2.4vw,30px);line-height:1.35;font-weight:700;color:var(--ink-900);}
.h2-deco::before{content:"";position:absolute;left:0;top:.35em;width:4px;height:22px;border-radius:2px;background:var(--accent-600);}
.h2-sub{margin-top:10px;font-size:14.5px;color:var(--ink-400);}
.read-next{display:grid;grid-template-columns:1fr;gap:16px;}
@media (min-width:768px){.read-next{grid-template-columns:1fr 1fr;}}
.read-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:18px 20px;box-shadow:var(--shadow-sm);transition:transform .3s ease-out,box-shadow .3s ease-out;}
.read-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.read-card .dir{font-size:12.5px;font-weight:600;color:var(--accent-600);}
.read-card .rc-title{margin-top:8px;font-size:16px;font-weight:600;color:var(--ink-900);line-height:1.6;}
.read-card .rc-desc{margin-top:6px;font-size:13.5px;color:var(--ink-400);line-height:1.75;}

.tag-row{display:flex;flex-wrap:wrap;gap:10px;}

/* ---------- 推荐卡 ---------- */
.rec-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.rec-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.rec-card{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:14px;box-shadow:var(--shadow-sm);transition:transform .3s ease-out,box-shadow .3s ease-out;}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
@media (min-width:768px){
  .rec-card{display:block;padding:0;overflow:hidden;}
  .rec-card .rec-media{border-radius:0;}
  .rec-card .rec-body{padding:18px 20px 20px;}
}
.rec-media{width:104px;height:78px;flex-shrink:0;overflow:hidden;border-radius:12px;background:var(--brand-50);}
@media (min-width:768px){.rec-media{width:100%;height:auto;aspect-ratio:16/10;border-radius:0;}}
.rec-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease-out;}
.rec-card:hover .rec-media img{transform:scale(1.05);}

/* ---------- CTA ---------- */
.cta-band{background:var(--brand-50);border:1px solid #D6E7F3;border-radius:var(--radius-lg);padding:28px 24px;}
@media (min-width:1024px){.cta-band{padding:40px 44px;}}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;color:var(--ink-900);line-height:1.4;}
.cta-band p{margin-top:10px;font-size:14.5px;color:var(--ink-600);line-height:1.8;max-width:560px;}

/* ---------- 页脚 ---------- */
.footer-link{display:inline-block;transition:color .2s ease-out,transform .2s ease-out;}
.footer-link:hover{color:#fff;transform:translateX(-2px);}
.footer-icon{width:36px;height:36px;border-radius:50%;border:1px solid rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.7);transition:all .2s ease-out;}
.footer-icon:hover{color:#fff;border-color:rgba(255,255,255,.5);}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(14,34,51,.45);opacity:0;visibility:hidden;transition:opacity .25s ease-out,visibility .25s ease-out;z-index:60;}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{position:fixed;top:0;right:0;height:100%;width:84vw;max-width:360px;background:#fff;z-index:61;transform:translateX(100%);transition:transform .28s ease-out;display:flex;flex-direction:column;}
.drawer.open{transform:translateX(0);}
.drawer-link{display:flex;align-items:center;height:48px;padding:0 20px;font-size:15px;color:var(--ink-600);border-bottom:1px solid var(--line);transition:background .2s ease-out,color .2s ease-out;}
.drawer-link:hover{background:#F5F9FC;}
.drawer-link.active{color:var(--brand-600);font-weight:600;background:var(--brand-50);border-left:3px solid var(--accent-600);padding-left:17px;}
.scroll-x{overflow-x:auto;-ms-overflow-style:none;scrollbar-width:none;}
.scroll-x::-webkit-scrollbar{display:none;}
body.locked{overflow:hidden;}

@media (max-width:767px){
  body{font-size:15.5px;}
  .article-content{font-size:15.5px;line-height:1.85;}
  .section{padding:48px 0;}
  .toolbar-inner{height:34px;}
}

/* roulang page: category1 */
:root{
    --brand-600:#1470A8;
    --brand-700:#0E5580;
    --brand-50:#E8F2F9;
    --accent-600:#F26A21;
    --accent-700:#D9550F;
    --support-green:#17A673;
    --warning-soft:#FDF1E9;
    --ink-900:#0E2233;
    --ink-600:#3E5266;
    --ink-400:#7A8B99;
    --line:#E2EAF1;
    --bg:#F5F8FB;
    --surface:#FFFFFF;
    --radius-card:16px;
    --radius-lg:24px;
    --radius-btn:10px;
    --shadow-sm:0 1px 2px rgba(14,34,51,.04), 0 1px 3px rgba(14,34,51,.03);
    --shadow-hover:0 16px 36px -18px rgba(14,85,128,.28);
    --ease:cubic-bezier(.22,.61,.36,1);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink-600);
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
    overflow-x:hidden;
  }
  img{display:block;max-width:100%;height:auto}
  a{color:inherit;text-decoration:none}
  button,input,select,textarea{font:inherit;color:inherit}
  h1,h2,h3,h4,p,figure,dl,dd,dt{margin:0}
  ul,ol{list-style:none;margin:0;padding:0}
  .tabular{font-variant-numeric:tabular-nums}

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

  .no-scrollbar{-ms-overflow-style:none;scrollbar-width:none}
  .no-scrollbar::-webkit-scrollbar{display:none}

  /* 导航 */
  .nav-link{
    position:relative;
    display:inline-flex;
    align-items:center;
    height:64px;
    font-size:15px;
    font-weight:500;
    color:var(--ink-600);
    transition:color .2s var(--ease);
  }
  .nav-link:hover{color:var(--brand-600)}
  .nav-link::after{
    content:"";
    position:absolute;
    left:20%;
    right:20%;
    bottom:14px;
    height:2px;
    border-radius:2px;
    background:var(--accent-600);
    transform:scaleX(0);
    transition:transform .25s var(--ease);
  }
  .nav-link:hover::after{transform:scaleX(.5)}
  .nav-link.active{color:var(--brand-600);font-weight:600}
  .nav-link.active::after{transform:scaleX(1)}

  /* 按钮 */
  .btn-primary,.btn-secondary,.btn-ghost-white{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    min-height:48px;
    padding:0 24px;
    border-radius:var(--radius-btn);
    font-size:15px;
    font-weight:600;
    transition:all .25s var(--ease);
    cursor:pointer;
  }
  .btn-primary{
    background:var(--accent-600);
    color:#fff;
    box-shadow:0 10px 24px -10px rgba(242,106,33,.55);
  }
  .btn-primary:hover{background:var(--accent-700);transform:translateY(-2px);box-shadow:0 16px 30px -10px rgba(242,106,33,.62)}
  .btn-primary:active{transform:translateY(0) scale(.99)}
  .btn-secondary{
    background:#fff;
    color:var(--brand-600);
    border:1.5px solid #CFE0EC;
  }
  .btn-secondary:hover{border-color:var(--brand-600);background:var(--brand-50);transform:translateY(-2px)}
  .btn-secondary:active{transform:translateY(0) scale(.99)}
  .btn-ghost-white{
    background:transparent;
    color:#fff;
    border:1px solid rgba(255,255,255,.45);
  }
  .btn-ghost-white:hover{background:#fff;color:var(--brand-700)}

  a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{
    outline:2px solid var(--brand-600);
    outline-offset:2px;
    border-radius:6px;
  }
  .btn-primary:focus-visible{outline:none;box-shadow:0 0 0 4px rgba(242,106,33,.28)}

  /* 标题 */
  .section-title{
    position:relative;
    padding-left:14px;
    font-size:clamp(22px,2.4vw,30px);
    line-height:1.35;
    font-weight:700;
    color:var(--ink-900);
    letter-spacing:0;
  }
  .section-title::before{
    content:"";
    position:absolute;
    left:0;
    top:.3em;
    width:4px;
    height:22px;
    border-radius:2px;
    background:var(--accent-600);
  }
  .h1-title{
    font-size:clamp(30px,4.2vw,44px);
    line-height:1.25;
    font-weight:700;
    color:var(--ink-900);
    letter-spacing:0;
  }
  .track-line{
    width:120px;
    height:4px;
    border-top:3px solid var(--accent-600);
    border-bottom:1px solid #CFE0EC;
  }

  /* 卡片 */
  .card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-sm);
    transition:transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
  }
  .card-hover:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#CFE0EC}

  /* 分步卡片 */
  .step-card{
    display:flex;
    gap:20px;
    padding:22px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-sm);
    transition:transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
    scroll-margin-top:120px;
  }
  .step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#CFE0EC}
  .step-num{
    flex:0 0 auto;
    width:44px;
    height:44px;
    border-radius:12px;
    background:var(--brand-50);
    color:var(--brand-700);
    font-size:20px;
    font-weight:700;
    display:flex;
    align-items:center;
    justify-content:center;
    font-variant-numeric:tabular-nums;
  }
  .tip-bar{
    display:flex;
    align-items:flex-start;
    gap:8px;
    margin-top:14px;
    padding:9px 14px;
    border-radius:var(--radius-btn);
    background:var(--warning-soft);
    color:var(--accent-700);
    font-size:14px;
    line-height:1.7;
  }

  /* 侧栏锚点 */
  .anchor-link{
    display:block;
    padding:10px 12px;
    margin-bottom:2px;
    border-left:3px solid transparent;
    border-radius:10px;
    font-size:14px;
    color:var(--ink-600);
    transition:background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
  }
  .anchor-link:hover{background:#F5F9FC;color:var(--brand-600)}
  .anchor-link.is-active{
    background:var(--brand-50);
    color:var(--brand-700);
    font-weight:600;
    border-left-color:var(--accent-600);
  }

  /* 胶囊 */
  .pill{
    display:inline-flex;
    align-items:center;
    gap:6px;
    height:40px;
    padding:0 18px;
    border-radius:999px;
    font-size:14px;
    font-weight:500;
    white-space:nowrap;
    border:1px solid var(--line);
    background:#fff;
    color:var(--ink-600);
    transition:all .22s var(--ease);
  }
  .pill:hover{border-color:var(--brand-600);color:var(--brand-600);background:var(--brand-50)}
  .pill-current{
    background:var(--accent-600);
    border-color:var(--accent-600);
    color:#fff;
    font-weight:600;
  }
  .pill-current:hover{background:var(--accent-700);border-color:var(--accent-700);color:#fff}

  .badge{
    display:inline-flex;
    align-items:center;
    padding:3px 12px;
    border-radius:999px;
    font-size:12px;
    font-weight:500;
    background:var(--brand-50);
    color:var(--brand-600);
  }

  /* 清单 */
  .check-item{
    display:flex;
    align-items:flex-start;
    gap:12px;
    padding:14px 4px;
    border-bottom:1px solid var(--line);
    font-size:15px;
    color:var(--ink-600);
  }
  .check-item:last-child{border-bottom:0}
  .check-mark{
    flex:0 0 auto;
    width:24px;
    height:24px;
    border-radius:999px;
    background:var(--brand-50);
    display:flex;
    align-items:center;
    justify-content:center;
    margin-top:3px;
  }

  /* 移动抽屉 */
  .drawer-item{
    display:flex;
    align-items:center;
    height:48px;
    padding:0 20px;
    border-bottom:1px solid var(--line);
    font-size:15px;
    color:var(--ink-600);
    transition:background .2s var(--ease), color .2s var(--ease);
  }
  .drawer-item:hover{background:#F5F9FC;color:var(--brand-600)}
  .drawer-item.active{
    background:var(--brand-50);
    color:var(--brand-700);
    font-weight:600;
    box-shadow:inset 3px 0 0 var(--accent-600);
  }

  .footer-link{
    display:inline-block;
    font-size:14px;
    color:rgba(255,255,255,.72);
    transition:color .2s var(--ease), transform .2s var(--ease);
  }
  .footer-link:hover{color:#fff;transform:translateX(-2px)}

  body.drawer-open{overflow:hidden}

  @media (max-width:767px){
    body{font-size:15.5px}
    .step-card{padding:18px;gap:14px}
    .step-num{width:38px;height:38px;font-size:17px;border-radius:10px}
    .btn-primary,.btn-secondary{width:100%}
  }

/* roulang page: category2 */
:root{
  --brand-600:#1470A8; --brand-700:#0E5580; --brand-50:#E8F2F9;
  --accent-600:#F26A21; --accent-700:#D9550F;
  --green:#17A673; --warn:#FDF1E9;
  --ink-900:#0E2233; --ink-600:#3E5266; --ink-400:#7A8B99;
  --line:#E2EAF1; --bg:#F5F8FB; --surface:#ffffff;
  --r-card:16px; --r-lg:24px; --r-btn:10px;
  --sh-1:0 1px 2px rgba(14,34,51,.04), 0 1px 3px rgba(14,34,51,.03);
  --sh-2:0 16px 36px -18px rgba(14,85,128,.28);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px; line-height:1.85; color:var(--ink-600);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea{font:inherit}
h1,h2,h3,h4,p,ul,ol,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
.tnum{font-variant-numeric:tabular-nums}

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

/* ============ 导航 ============ */
.topbar{height:36px;background:var(--brand-700);color:#fff;font-size:13px}
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease-out;
}
.site-header.scrolled{box-shadow:0 8px 24px -18px rgba(14,34,51,.35)}
.nav-link{position:relative;display:inline-block;font-size:15px;font-weight:500;color:var(--ink-600);padding:6px 0;transition:color .2s ease-out}
.nav-link:hover{color:var(--brand-600)}
.nav-link.active{color:var(--brand-600);font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:0;right:40%;bottom:-2px;height:2px;border-radius:2px;background:var(--accent-600)}
.drawer-link{
  display:flex;align-items:center;min-height:48px;padding:0 16px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--ink-600);border-bottom:1px solid var(--line);
  transition:background .2s ease-out,color .2s ease-out;
}
.drawer-link:last-child{border-bottom:0}
.drawer-link:hover{background:var(--brand-50);color:var(--brand-600)}
.drawer-link.active{background:var(--brand-50);color:var(--brand-600);font-weight:600;border-left:3px solid var(--accent-600);border-radius:0 10px 10px 0}
.drawer-mask{position:fixed;inset:0;background:rgba(14,34,51,.45);opacity:0;visibility:hidden;transition:opacity .3s ease-out,visibility .3s;z-index:60}
.drawer-mask.show{opacity:1;visibility:visible}
#mobileDrawer{transition:transform .3s ease-out}
#mobileDrawer.open{transform:translateX(0)}
body.lock{overflow:hidden}

/* ============ 按钮 ============ */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  background:var(--accent-600);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 10px 24px -10px rgba(242,106,33,.55);
  transition:background .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.btn-primary:hover{background:var(--accent-700);transform:translateY(-2px);box-shadow:0 16px 30px -12px rgba(217,85,15,.6)}
.btn-primary:active{transform:translateY(0) scale(.99)}
.btn-primary:focus-visible{outline:none;box-shadow:0 0 0 4px rgba(242,106,33,.28)}
.btn-sm{height:40px;padding:0 18px;font-size:15px;box-shadow:0 8px 18px -10px rgba(242,106,33,.5)}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  background:#fff;color:var(--brand-600);font-size:15px;font-weight:600;
  border:1.5px solid #CFE0EC;
  transition:border-color .2s ease-out,background .2s ease-out,transform .2s ease-out;
}
.btn-outline:hover{border-color:var(--brand-600);background:var(--brand-50);transform:translateY(-2px)}
.btn-outline:focus-visible{outline:none;box-shadow:0 0 0 4px rgba(20,112,168,.16)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-size:15px;font-weight:600;transition:color .2s ease-out}
.link-arrow svg{transition:transform .2s ease-out}
.link-arrow:hover{color:var(--accent-600)}
.link-arrow:hover svg{transform:translateX(3px)}

/* ============ 横幅 ============ */
.cat-banner{
  position:relative;
  background-color:#E8F2F9;
  background-image:linear-gradient(180deg,rgba(232,242,249,.90),rgba(232,242,249,.97)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
  padding:34px 0 38px;
}
@media (min-width:1024px){ .cat-banner{padding:54px 0 60px} }
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-400)}
.crumb a:hover{color:var(--brand-600)}
.crumb .now{color:var(--brand-600);font-weight:600}
.banner-title{font-size:clamp(30px,4.2vw,46px);line-height:1.25;font-weight:700;color:var(--ink-900);letter-spacing:0}
.banner-sub{margin-top:14px;font-size:16px;color:var(--ink-600);max-width:720px}
.stat-row{display:flex;flex-wrap:wrap;gap:14px 40px;margin-top:26px;padding-top:20px;border-top:1px solid rgba(20,112,168,.16)}
.stat-num{font-size:20px;font-weight:700;color:var(--brand-700);line-height:1.3}
.stat-lab{font-size:13px;color:var(--ink-400)}

/* ============ 分类胶囊 ============ */
.cat-pill{
  flex:0 0 auto;display:inline-flex;align-items:center;height:40px;padding:0 18px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--ink-600);font-size:14px;font-weight:500;
  transition:border-color .2s ease-out,color .2s ease-out,background .2s ease-out,transform .2s ease-out;
}
.cat-pill:hover{border-color:var(--brand-600);color:var(--brand-600);transform:translateY(-2px)}
.cat-pill.active{background:var(--accent-600);border-color:var(--accent-600);color:#fff;font-weight:600}
.no-scrollbar{-ms-overflow-style:none;scrollbar-width:none}
.no-scrollbar::-webkit-scrollbar{display:none}

/* ============ 区块 ============ */
.section{padding:48px 0}
@media (min-width:1024px){ .section{padding:80px 0} }
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.h2-line{position:relative;padding-left:14px;font-size:clamp(22px,2.4vw,30px);line-height:1.35;font-weight:700;color:var(--ink-900)}
.h2-line::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:22px;border-radius:2px;background:var(--accent-600)}
.runway{display:block;width:120px;height:1px;background:var(--line);position:relative;margin-bottom:18px}
.runway::before{content:"";position:absolute;left:0;top:-1px;width:36px;height:3px;border-radius:2px;background:var(--accent-600)}

/* ============ 筛选条 ============ */
.filter-bar{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  background:var(--brand-50);border:1px solid #D6E7F3;border-radius:14px;padding:12px 16px;
}
.filter-chip{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid #CFE0EC;color:var(--brand-700);font-size:13px;font-weight:500;
}
.filter-chip.on{background:var(--brand-600);border-color:var(--brand-600);color:#fff}

/* ============ 时间轴 ============ */
.timeline{position:relative;padding-left:30px}
.timeline::before{content:"";position:absolute;left:9px;top:10px;bottom:10px;width:1px;background:var(--line)}
.tl-item{position:relative;margin-bottom:20px}
.tl-item:last-child{margin-bottom:0}
.tl-dot{
  position:absolute;left:-30px;top:26px;width:19px;height:19px;border-radius:50%;
  background:#fff;border:2px solid var(--brand-600);z-index:1;
}
.tl-item.is-current .tl-dot{background:var(--accent-600);border-color:var(--accent-600);box-shadow:0 0 0 4px rgba(242,106,33,.14)}
.tl-card{
  position:relative;display:flex;gap:18px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:18px;box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .3s ease-out,box-shadow .3s ease-out,border-color .3s ease-out;
}
.tl-card::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:0;background:var(--accent-600);
  border-radius:0 2px 2px 0;transition:width .2s ease-out;
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#CFE0EC}
.tl-card:hover::before{width:3px}
.tl-thumb{flex:0 0 104px;width:104px;height:78px;border-radius:10px;overflow:hidden;background:var(--brand-50)}
.tl-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease-out}
.tl-card:hover .tl-thumb img{transform:scale(1.05)}
.tl-title{font-size:18px;line-height:1.5;font-weight:600;color:var(--ink-900);margin-top:2px}
.tl-title a{position:relative;display:inline}
.tl-title a::after{content:"";position:absolute;inset:-6px;border-radius:8px}
.tl-card:hover .tl-title a{color:var(--brand-600)}
.tl-title a::before{content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;background:var(--accent-600);border-radius:2px;transition:width .3s ease-out}
.tl-card:hover .tl-title a::before{width:100%}
.tl-desc{font-size:14px;line-height:1.8;color:var(--ink-400);margin-top:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
@media (max-width:640px){
  .tl-card{flex-direction:row;gap:12px;padding:14px}
  .tl-thumb{flex:0 0 84px;width:84px;height:64px}
  .tl-title{font-size:16px}
  .tl-desc{font-size:13.5px}
}

/* ============ 标签 ============ */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:500;line-height:1}
.badge-date{background:var(--brand-50);color:var(--brand-600)}
.badge-cat{background:#F0F5F9;color:var(--ink-600)}
.badge-state{background:#E6F6F0;color:var(--green)}
.badge-warn{background:var(--warn);color:var(--accent-700)}

/* ============ 卡片 ============ */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;
  box-shadow:var(--sh-1);transition:transform .3s ease-out,box-shadow .3s ease-out;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.card-flat{background:var(--brand-50);border:1px solid #D6E7F3;border-radius:var(--r-card);padding:22px;transition:transform .3s ease-out}
.card-flat:hover{transform:translateY(-4px)}
.thumb-16-10{position:relative;width:100%;aspect-ratio:16/10;border-radius:12px;overflow:hidden;background:var(--brand-50)}
.thumb-16-10 img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease-out}
.card:hover .thumb-16-10 img{transform:scale(1.05)}

/* ============ FAQ ============ */
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;
  padding:18px 0;text-align:left;font-size:16px;font-weight:600;color:var(--ink-900);
  transition:color .2s ease-out;
}
.faq-q:hover{color:var(--brand-600)}
.faq-q:focus-visible{outline:2px solid var(--brand-600);outline-offset:4px;border-radius:6px}
.faq-icon{
  flex:0 0 28px;width:28px;height:28px;border-radius:50%;background:var(--brand-50);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;transition:transform .3s ease-out;
}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease-out}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-a > div{overflow:hidden}
.faq-a p{padding-bottom:18px;font-size:15px;line-height:1.85;color:var(--ink-600);max-width:820px}

/* ============ CTA ============ */
.cta-band{
  background:#fff;border:1px solid #CFE0EC;border-radius:var(--r-lg);
  padding:28px 24px;display:flex;flex-direction:column;gap:20px;
  box-shadow:var(--sh-1);
}
@media (min-width:768px){ .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:36px 40px} }

/* ============ 页脚 ============ */
.foot-link{display:inline-block;font-size:14px;color:rgba(255,255,255,.72);transition:color .2s ease-out,transform .2s ease-out}
.foot-link:hover{color:#fff;transform:translateX(-2px)}
.foot-ico{
  width:36px;height:36px;border-radius:50%;border:1px solid rgba(255,255,255,.2);
  display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.7);
  transition:color .2s ease-out,border-color .2s ease-out;
}
.foot-ico:hover{color:#fff;border-color:rgba(255,255,255,.5)}

/* focus 可访问性 */
a:focus-visible,button:focus-visible{outline:2px solid var(--brand-600);outline-offset:3px;border-radius:6px}

/* roulang page: category3 */
:root{
    --brand-600:#1470A8;
    --brand-700:#0E5580;
    --brand-50:#E8F2F9;
    --accent-600:#F26A21;
    --accent-700:#D9550F;
    --green:#17A673;
    --ink-900:#0E2233;
    --ink-600:#3E5266;
    --ink-400:#7A8B99;
    --line:#E2EAF1;
    --bg:#F5F8FB;
    --surface:#FFFFFF;
    --radius-card:16px;
    --radius-lg:24px;
    --shadow-soft:0 1px 2px rgba(14,34,51,.04), 0 1px 3px rgba(14,34,51,.03);
    --shadow-hover:0 16px 36px -18px rgba(14,85,128,.28);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    background:var(--bg);
    color:var(--ink-600);
    font-size:16px;
    line-height:1.85;
    -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,dl,dd{margin:0;}
  ul{list-style:none;padding:0;}
  .num{font-variant-numeric:tabular-nums;}

  .container-x{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
  @media (min-width:768px){.container-x{padding-left:32px;padding-right:32px;}}
  @media (min-width:1280px){.container-x{max-width:1200px;}}
  @media (min-width:1024px) and (max-width:1279px){.container-x{max-width:1140px;}}

  /* 导航 */
  .nav-link{position:relative;display:inline-block;font-size:15px;font-weight:500;color:var(--ink-600);padding:6px 0;transition:color .2s ease-out;}
  .nav-link:hover{color:var(--brand-600);}
  .nav-link:focus-visible{outline:2px solid var(--brand-600);outline-offset:4px;border-radius:4px;}
  .nav-link.active{color:var(--brand-600);}
  .nav-link.active::after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:-3px;width:60%;height:2px;border-radius:2px;background:var(--accent-600);}
  .topbar-link{color:rgba(255,255,255,.78);font-size:13px;transition:color .2s ease-out;}
  .topbar-link:hover{color:#fff;}
  .drawer-item{display:block;padding:14px 4px;font-size:15px;color:var(--ink-600);border-bottom:1px solid var(--line);}
  .drawer-item.active{color:var(--brand-600);font-weight:600;border-left:3px solid var(--accent-600);background:var(--brand-50);padding-left:12px;}

  /* 按钮 */
  .btn-primary{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 24px;border-radius:10px;border:none;
    background:var(--accent-600);color:#fff;font-size:15px;font-weight:600;
    box-shadow:0 10px 24px -10px rgba(242,106,33,.55);
    transition:background .25s ease-out, transform .25s ease-out, box-shadow .25s ease-out;
    cursor:pointer;
  }
  .btn-primary:hover{background:var(--accent-700);transform:translateY(-2px);box-shadow:0 16px 32px -12px rgba(217,85,15,.6);}
  .btn-primary:active{transform:translateY(0) scale(.99);}
  .btn-primary:focus-visible{outline:none;box-shadow:0 0 0 4px rgba(242,106,33,.28);}
  .btn-outline{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 24px;border-radius:10px;background:#fff;
    border:1.5px solid #CFE0EC;color:var(--brand-600);font-size:15px;font-weight:600;
    transition:border-color .25s ease-out, background .25s ease-out, transform .25s ease-out;
    cursor:pointer;
  }
  .btn-outline:hover{border-color:var(--brand-600);background:var(--brand-50);transform:translateY(-2px);}
  .btn-outline:active{transform:translateY(0) scale(.99);}
  .btn-outline:focus-visible{outline:none;box-shadow:0 0 0 4px rgba(20,112,168,.18);}
  .link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-size:14px;font-weight:600;transition:color .2s ease-out;}
  .link-arrow svg{transition:transform .2s ease-out;}
  .link-arrow:hover{color:var(--accent-600);}
  .link-arrow:hover svg{transform:translateX(3px);}
  .link-arrow:focus-visible{outline:2px solid var(--brand-600);outline-offset:3px;border-radius:4px;}

  /* 版式装饰 */
  .h2-bar{position:relative;padding-left:14px;}
  .h2-bar::before{content:"";position:absolute;left:0;top:.42em;width:4px;height:22px;border-radius:2px;background:var(--accent-600);}
  .runway{display:flex;align-items:center;gap:8px;margin-bottom:14px;}
  .runway::before{content:"";width:36px;height:3px;border-radius:2px;background:var(--accent-600);}
  .runway::after{content:"";width:64px;height:1px;background:#CFE0EC;}
  .eyebrow{font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--brand-600);}

  /* 标签 */
  .tag{display:inline-flex;align-items:center;border-radius:999px;font-size:12px;font-weight:500;padding:4px 12px;background:var(--brand-50);color:var(--brand-600);}
  .tag-accent{background:#FDF1E9;color:var(--accent-700);}
  .tag-green{background:#E6F6F0;color:var(--green);}
  .count-badge{display:inline-flex;align-items:center;justify-content:center;min-width:28px;height:28px;padding:0 8px;border-radius:8px;background:var(--brand-50);color:var(--brand-700);font-size:13px;font-weight:700;}

  /* 卡片 */
  .card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-soft);transition:transform .3s ease-out, box-shadow .3s ease-out;}
  .card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
  .media-frame{overflow:hidden;border-radius:14px;background:var(--brand-50);aspect-ratio:4/3;}
  .media-frame img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease-out;}
  .feature-card:hover .media-frame img{transform:scale(1.05);}

  /* 横幅 */
  .page-hero{
    background-image:linear-gradient(rgba(232,242,249,.94), rgba(238,246,251,.97)), url(/assets/images/backpic/back-1.png);
    background-size:cover;
    background-position:center;
    border-bottom:1px solid var(--line);
  }
  .crumb{font-size:13px;color:var(--ink-400);display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
  .crumb a{transition:color .2s ease-out;}
  .crumb a:hover{color:var(--brand-600);}
  .crumb .current{color:var(--brand-600);font-weight:600;}

  /* 分类胶囊 */
  .chip{
    display:inline-flex;align-items:center;gap:6px;white-space:nowrap;
    height:40px;padding:0 18px;border-radius:999px;font-size:14px;font-weight:500;
    background:#fff;border:1px solid var(--line);color:var(--ink-600);
    transition:border-color .2s ease-out, color .2s ease-out, background .2s ease-out;
  }
  .chip:hover{border-color:var(--brand-600);color:var(--brand-600);}
  .chip.current{background:var(--accent-600);border-color:var(--accent-600);color:#fff;font-weight:600;}
  .chip:focus-visible{outline:2px solid var(--brand-600);outline-offset:3px;}
  .scroll-x{overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
  .scroll-x::-webkit-scrollbar{display:none;}

  /* 交错图文 */
  .feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-soft);padding:20px;transition:transform .3s ease-out, box-shadow .3s ease-out;}
  .feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
  @media (min-width:768px){.feature-card{padding:24px;}}

  /* 定义列表 */
  .def-list dt{font-size:15px;font-weight:600;color:var(--ink-900);padding-top:14px;}
  .def-list dd{font-size:14px;color:var(--ink-600);padding-bottom:14px;border-bottom:1px solid var(--line);}
  .def-list > div:last-child dd{border-bottom:none;padding-bottom:0;}

  /* 侧栏粘性 */
  .sticky-col{position:static;}
  @media (min-width:1024px){.sticky-col{position:sticky;top:96px;}}

  /* 快速入口行 */
  .quick-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 12px;border-radius:10px;border-bottom:1px solid var(--line);transition:background .2s ease-out;}
  .quick-row:last-child{border-bottom:none;}
  .quick-row:hover{background:#F5F9FC;}
  .quick-row:hover .quick-title{color:var(--brand-600);}
  .quick-title{font-size:14px;font-weight:600;color:var(--ink-900);transition:color .2s ease-out;}

  /* 功能范围列表 */
  .scope-item{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line);}
  .scope-item:last-child{border-bottom:none;}
  .scope-icon{flex:none;width:36px;height:36px;border-radius:10px;background:var(--brand-50);color:var(--brand-700);display:flex;align-items:center;justify-content:center;}

  /* 场景卡 */
  .scene-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-soft);transition:transform .3s ease-out, box-shadow .3s ease-out, border-color .3s ease-out;}
  .scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#CFE0EC;}
  .scene-major{background:var(--brand-700);border-color:var(--brand-700);color:rgba(255,255,255,.82);}
  .scene-major:hover{box-shadow:0 22px 44px -20px rgba(14,85,128,.55);border-color:var(--brand-700);}

  /* CTA 条 */
  .cta-band{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-soft);}

  /* 页脚 */
  .footer-link{display:inline-block;font-size:14px;color:rgba(255,255,255,.72);transition:color .2s ease-out, transform .2s ease-out;}
  .footer-link:hover{color:#fff;transform:translateX(2px);}
  .foot-icon{width:36px;height:36px;border-radius:999px;border:1px solid rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.7);transition:color .2s ease-out, border-color .2s ease-out;}
  .foot-icon:hover{color:#fff;border-color:rgba(255,255,255,.5);}

  /* 抽屉 */
  .drawer{position:fixed;top:0;right:0;height:100%;width:84vw;max-width:360px;background:#fff;z-index:70;transform:translateX(100%);transition:transform .3s ease-out;display:flex;flex-direction:column;}
  .drawer.open{transform:translateX(0);}
  .overlay{position:fixed;inset:0;background:rgba(14,34,51,.45);opacity:0;visibility:hidden;transition:opacity .3s ease-out, visibility .3s ease-out;z-index:60;}
  .overlay.open{opacity:1;visibility:visible;}
  body.lock{overflow:hidden;}

  .dot-grid{position:absolute;width:120px;height:120px;background-image:radial-gradient(rgba(20,112,168,.18) 1.5px, transparent 1.5px);background-size:16px 16px;}

  @media (max-width:639px){
    body{font-size:15.5px;}
    .btn-primary,.btn-outline{width:100%;}
    .feature-card{padding:16px;border-radius:16px;}
    .scene-card{padding:18px;}
  }

/* roulang page: category4 */
:root{
    --brand-600:#1470A8;
    --brand-700:#0E5580;
    --brand-50:#E8F2F9;
    --accent-600:#F26A21;
    --accent-700:#D9550F;
    --ink-900:#0E2233;
    --ink-600:#3E5266;
    --ink-400:#7A8B99;
    --line:#E2EAF1;
    --bg:#F5F8FB;
    --surface:#FFFFFF;
    --radius-card:16px;
    --radius-btn:10px;
    --radius-lg:24px;
    --shadow-sm:0 1px 2px rgba(14,34,51,.04), 0 1px 3px rgba(14,34,51,.03);
    --shadow-hover:0 16px 36px -18px rgba(14,85,128,.28);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    font-size:16px;
    line-height:1.85;
    color:var(--ink-600);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0;}
  ul,ol{padding:0;list-style:none;}
  a{color:inherit;text-decoration:none;}
  img{max-width:100%;display:block;}
  button,input{font:inherit;color:inherit;}
  button{background:none;border:0;cursor:pointer;}
  :focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:6px;}

  .container-x{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
  @media (max-width:1279px){ .container-x{max-width:1140px;} }
  @media (max-width:1023px){ .container-x{max-width:100%;} }
  @media (min-width:768px){ .container-x{padding-left:32px;padding-right:32px;} }

  .num{font-variant-numeric:tabular-nums;}

  /* ---------- 顶部工具条 ---------- */
  .topbar{background:var(--brand-700);}
  .topbar a{color:rgba(255,255,255,.85);transition:color .2s ease-out;}
  .topbar a:hover{color:#fff;}

  /* ---------- 主导航 ---------- */
  .site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease-out,backdrop-filter .25s ease-out;}
  .site-header.scrolled{box-shadow:0 6px 22px -14px rgba(14,85,128,.35);backdrop-filter:saturate(160%) blur(8px);background:rgba(255,255,255,.92);}
  .logo-mark{width:26px;height:26px;border-radius:8px;background:var(--brand-600);display:flex;align-items:center;justify-content:center;flex:none;}
  .nav-link{position:relative;font-size:15px;font-weight:500;color:var(--ink-600);padding:6px 0;transition:color .2s ease-out;white-space:nowrap;}
  .nav-link:hover{color:var(--brand-600);}
  .nav-link.active{color:var(--brand-600);font-weight:600;}
  .nav-link.active::after{content:"";position:absolute;left:50%;bottom:-4px;transform:translateX(-50%);width:60%;height:2px;border-radius:2px;background:var(--accent-600);}

  /* ---------- 按钮 ---------- */
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;font-size:15px;font-weight:600;border-radius:var(--radius-btn);transition:transform .22s ease-out,background-color .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out,color .22s ease-out;cursor:pointer;}
  .btn-primary{background:var(--accent-600);color:#fff;height:48px;padding:0 24px;box-shadow:0 10px 24px -10px rgba(242,106,33,.55);}
  .btn-primary:hover{background:var(--accent-700);transform:translateY(-2px);box-shadow:0 16px 30px -12px rgba(242,106,33,.65);}
  .btn-primary:active{transform:translateY(0) scale(.99);}
  .btn-primary:focus-visible{box-shadow:0 0 0 4px rgba(242,106,33,.28);}
  .btn-outline{background:#fff;color:var(--brand-600);border:1.5px solid #CFE0EC;padding:0 20px;}
  .btn-outline:hover{border-color:var(--brand-600);background:var(--brand-50);}
  .btn-sm{height:42px;padding:0 18px;font-size:14px;}

  .link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-600);transition:color .2s ease-out;}
  .link-arrow svg{transition:transform .2s ease-out;}
  .link-arrow:hover{color:var(--accent-600);}
  .link-arrow:hover svg{transform:translateX(3px);}

  /* ---------- 分类横幅 ---------- */
  .cat-banner{
    background-color:var(--brand-50);
    background-image:linear-gradient(rgba(232,242,249,.94),rgba(232,242,249,.97)),url('/assets/images/backpic/back-2.webp');
    background-size:cover;
    background-position:center;
    border-bottom:1px solid var(--line);
  }
  .crumb{font-size:13px;color:var(--ink-400);display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
  .crumb a{color:var(--ink-400);transition:color .2s ease-out;}
  .crumb a:hover{color:var(--brand-600);}
  .crumb .current{color:var(--brand-600);font-weight:600;}

  /* ---------- 胶囊切换 ---------- */
  .chip{display:inline-flex;align-items:center;height:40px;padding:0 18px;border-radius:999px;font-size:14px;font-weight:500;background:#fff;border:1px solid var(--line);color:var(--ink-600);white-space:nowrap;transition:background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out,transform .2s ease-out;}
  .chip:hover{border-color:var(--brand-600);color:var(--brand-600);transform:translateY(-2px);}
  .chip.current{background:var(--accent-600);border-color:var(--accent-600);color:#fff;font-weight:600;}
  .chip-row{display:flex;gap:12px;overflow-x:auto;padding-bottom:4px;scrollbar-width:none;}
  .chip-row::-webkit-scrollbar{display:none;}

  /* ---------- 卡片与标签 ---------- */
  .card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);transition:transform .3s ease-out,box-shadow .3s ease-out,border-color .3s ease-out;}
  .card-hover:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D8E6F0;}
  .badge{display:inline-flex;align-items:center;border-radius:999px;padding:3px 12px;font-size:12px;font-weight:500;line-height:1.7;}
  .badge-brand{background:var(--brand-50);color:var(--brand-600);}
  .badge-accent{background:#FDF1E9;color:var(--accent-700);}
  .badge-ok{background:#E6F6F0;color:#17A673;}
  .icon-round{width:46px;height:46px;border-radius:999px;background:var(--brand-50);color:var(--brand-700);display:flex;align-items:center;justify-content:center;flex:none;}

  .sec-title{position:relative;padding-left:14px;font-size:clamp(22px,2.4vw,30px);line-height:1.35;font-weight:700;color:var(--ink-900);}
  .sec-title::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:22px;border-radius:2px;background:var(--accent-600);}
  .sec-lead{font-size:15px;color:var(--ink-400);line-height:1.8;}

  .check-item{display:flex;gap:12px;align-items:flex-start;padding:12px 0;}
  .check-icon{width:22px;height:22px;border-radius:999px;background:var(--brand-50);color:var(--brand-600);display:flex;align-items:center;justify-content:center;flex:none;margin-top:5px;}

  .notice{display:flex;gap:10px;align-items:flex-start;background:#FDF1E9;border-radius:12px;padding:14px 16px;font-size:14px;line-height:1.75;color:var(--accent-700);}

  .dl-row{padding:18px 0;border-bottom:1px solid var(--line);}
  .dl-row dt{font-size:15px;font-weight:600;color:var(--ink-900);margin-bottom:6px;}
  .dl-row dd{font-size:14px;line-height:1.8;color:var(--ink-600);}

  /* ---------- FAQ ---------- */
  .faq-group-label{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-700);background:var(--brand-50);border-radius:999px;padding:4px 14px;}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item:last-child{border-bottom:0;}
  .faq-q{display:flex;align-items:center;justify-content:space-between;gap:18px;width:100%;text-align:left;padding:18px 0;font-size:16px;font-weight:600;color:var(--ink-900);transition:color .2s ease-out;}
  .faq-q:hover{color:var(--brand-600);}
  .faq-icon{width:28px;height:28px;border-radius:999px;background:var(--brand-50);color:var(--brand-700);display:flex;align-items:center;justify-content:center;flex:none;transition:transform .3s ease-out,background-color .3s ease-out,color .3s ease-out;}
  .faq-item.open .faq-icon{transform:rotate(45deg);background:var(--accent-600);color:#fff;}
  .faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease-out;}
  .faq-item.open .faq-a{grid-template-rows:1fr;}
  .faq-a>div{overflow:hidden;}
  .faq-a-inner{padding:0 46px 20px 0;font-size:15px;line-height:1.85;color:var(--ink-600);}

  /* ---------- 移动抽屉 ---------- */
  .mnav-mask{position:fixed;inset:0;background:rgba(14,34,51,.45);opacity:0;visibility:hidden;transition:opacity .3s ease-out,visibility .3s ease-out;z-index:60;}
  .mnav-mask.show{opacity:1;visibility:visible;}
  .mnav{position:fixed;top:0;right:0;height:100%;width:84vw;max-width:360px;background:#fff;z-index:70;display:flex;flex-direction:column;transform:translateX(100%);transition:transform .3s ease-out;box-shadow:-18px 0 40px -24px rgba(14,34,51,.5);}
  .mnav.open{transform:translateX(0);}
  .mnav-link{display:flex;align-items:center;min-height:48px;padding:0 22px;font-size:15px;font-weight:500;color:var(--ink-600);border-bottom:1px solid var(--line);transition:background-color .2s ease-out,color .2s ease-out;}
  .mnav-link:hover{background:#F5F9FC;color:var(--brand-600);}
  .mnav-link.active{color:var(--brand-600);font-weight:600;background:var(--brand-50);border-left:3px solid var(--accent-600);padding-left:19px;}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink-900);color:#fff;}
  .site-footer .f-title{font-size:15px;font-weight:600;color:#fff;}
  .site-footer .f-link{display:inline-block;font-size:14px;color:rgba(255,255,255,.72);transition:color .2s ease-out,transform .2s ease-out;}
  .site-footer .f-link:hover{color:#fff;transform:translateX(-2px);}

  /* ---------- CTA ---------- */
  .cta-band{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);}

  @media (max-width:767px){
    body{font-size:15.5px;}
    .faq-q{font-size:15px;padding:16px 0;}
    .faq-a-inner{padding-right:16px;}
  }