/* roulang page: index */
:root{
    --brand-50:#EEF4FF; --brand-100:#DCE7FF; --brand-200:#BBD0FF;
    --brand-500:#2E6BE6; --brand-600:#1B57D6; --brand-700:#1442A8;
    --accent:#FF6A1F; --accent-soft:#FFF1E8;
    --ink-900:#0E1526; --ink-700:#334155; --ink-500:#64748B; --ink-400:#94A3B8;
    --surface:#FFFFFF; --page:#F5F8FC; --border:#E5EBF3; --border-strong:#D3DDEB;
    --dark:#0C1B33;
    --r-sm:8px; --r-md:10px; --r-lg:12px; --r-xl:16px; --r-2xl:20px; --r-pill:999px;
    --shadow-card:0 1px 2px rgba(16,34,64,.04), 0 8px 24px -12px rgba(16,34,64,.12);
    --shadow-hover:0 12px 32px -12px rgba(16,34,64,.20);
    --container:1180px;
    --sidebar-w:232px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--page);
    color:var(--ink-700);
    font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;}
  input{font-family:inherit;font-size:inherit;}
  h1,h2,h3,h4,p{margin:0;}
  :focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;}
  .ht-container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
  @media (min-width:1024px){.ht-container{padding:0 40px;}}

  /* ---------- App Shell ---------- */
  .ht-sidebar{
    position:fixed;left:0;top:0;z-index:60;
    width:var(--sidebar-w);height:100vh;
    background:var(--surface);
    border-right:1px solid var(--border);
    display:flex;flex-direction:column;
    overflow-y:auto;
  }
  .ht-sidebar-head{padding:18px 16px;border-bottom:1px solid var(--border);}
  .ht-logo{display:flex;align-items:center;gap:10px;min-height:44px;}
  .ht-logo-mark{
    width:34px;height:34px;border-radius:10px;background:var(--brand-600);
    display:flex;align-items:center;justify-content:center;flex:none;
  }
  .ht-logo-mark svg{width:18px;height:18px;}
  .ht-logo-text{font-size:16px;font-weight:700;color:var(--ink-900);letter-spacing:0;}
  .ht-nav{padding:14px 12px;display:flex;flex-direction:column;gap:4px;flex:1;}
  .ht-nav-item{
    position:relative;display:flex;align-items:center;gap:12px;
    min-height:40px;padding:0 12px;border-radius:var(--r-md);
    font-size:15px;color:var(--ink-700);
    transition:background .2s ease-out,color .2s ease-out;
  }
  .ht-nav-item svg{width:20px;height:20px;flex:none;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
  .ht-nav-item:hover{background:var(--brand-50);color:var(--brand-600);}
  .ht-nav-item.is-active{background:var(--brand-50);color:var(--brand-700);font-weight:600;}
  .ht-nav-item.is-active::before{
    content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:3px;background:var(--brand-600);
  }
  .ht-side-card{
    margin:12px;padding:14px;border-radius:14px;background:var(--brand-50);
    border:1px solid var(--brand-100);
  }
  .ht-side-card p{font-size:13px;color:var(--ink-500);line-height:1.6;margin-bottom:10px;}

  .ht-shell-main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;}
  .ht-shell-main main{flex:1;}

  /* ---------- 移动顶栏 & 抽屉 ---------- */
  .ht-mobile-bar{
    display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:70;
    background:var(--surface);border-bottom:1px solid var(--border);
    align-items:center;gap:8px;padding:0 10px;
  }
  .ht-burger{
    width:44px;height:44px;border-radius:8px;display:flex;align-items:center;justify-content:center;
    color:var(--ink-900);transition:background .2s ease-out;
  }
  .ht-burger:hover{background:var(--brand-50);}
  .ht-burger svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;}
  .ht-drawer-mask{
    position:fixed;inset:0;background:rgba(14,21,38,.45);z-index:80;
    opacity:0;visibility:hidden;transition:opacity .24s ease-out,visibility .24s ease-out;
  }
  .ht-drawer{
    position:fixed;top:0;left:0;bottom:0;width:280px;background:var(--surface);z-index:90;
    transform:translateX(-100%);transition:transform .24s ease-out;
    display:flex;flex-direction:column;overflow-y:auto;
  }
  body.is-drawer-open .ht-drawer{transform:translateX(0);}
  body.is-drawer-open .ht-drawer-mask{opacity:1;visibility:visible;}
  .ht-drawer .ht-nav-item{min-height:48px;font-size:16px;}

  /* ---------- 通用组件 ---------- */
  .ht-card{
    background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xl);
    box-shadow:var(--shadow-card);transition:transform .2s ease-out,box-shadow .2s ease-out;
  }
  .ht-card-hover:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
  .ht-btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 20px;border-radius:var(--r-md);
    font-size:15px;font-weight:600;line-height:1;
    transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,border-color .2s ease-out,color .2s ease-out;
  }
  .ht-btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 6px 16px -10px rgba(27,87,214,.9);}
  .ht-btn-primary:hover{background:var(--brand-700);transform:translateY(-1px);box-shadow:0 10px 24px -12px rgba(20,66,168,.85);}
  .ht-btn-primary:active{transform:translateY(0);}
  .ht-btn-ghost{background:#fff;color:var(--brand-700);border:1px solid var(--brand-200);}
  .ht-btn-ghost:hover{background:var(--brand-50);border-color:var(--brand-500);}
  .ht-btn-sm{height:38px;padding:0 16px;font-size:14px;}
  .ht-btn:disabled{opacity:.45;cursor:not-allowed;transform:none;}
  .ht-link{color:var(--brand-700);font-weight:600;transition:color .2s ease-out;}
  .ht-link:hover{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px;}

  .ht-chip{
    display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
    background:var(--brand-50);color:var(--brand-700);font-size:12px;font-weight:500;line-height:1;
  }
  .ht-badge-pre{
    display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:var(--r-pill);
    background:#fff;border:1px solid var(--brand-600);color:var(--brand-700);
    font-size:12px;font-weight:600;line-height:1;
  }
  .ht-badge-time{
    display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);
    background:rgba(255,255,255,.94);color:var(--ink-900);font-size:12px;font-weight:600;line-height:1;
  }
  .ht-badge-duration{
    display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
    background:rgba(14,21,38,.7);color:#fff;font-size:12px;line-height:1;
  }
  .ht-badge-state{
    display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
    font-size:12px;font-weight:500;line-height:1;
  }
  .ht-state-live{background:#FF3B4E;color:#fff;gap:6px;}
  .ht-state-live::before{content:"";width:6px;height:6px;border-radius:50%;background:#fff;animation:htPulse 1.6s ease-out infinite;}
  .ht-state-end{background:#F1F5FB;color:#64748B;}
  .ht-state-soon{background:var(--accent-soft);color:#B4490E;}

  .ht-section{padding:56px 0;}
  @media (min-width:1024px){.ht-section{padding:80px 0;}}
  .ht-h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;font-weight:700;color:var(--ink-900);letter-spacing:0;}
  .ht-h3{font-size:17px;line-height:1.45;font-weight:600;color:var(--ink-900);letter-spacing:0;}
  .ht-sub{font-size:14px;line-height:1.6;color:var(--ink-500);}

  .ht-field{
    height:44px;width:100%;padding:0 14px;border-radius:var(--r-md);
    border:1px solid var(--border-strong);background:#fff;color:var(--ink-900);
    transition:border-color .2s ease-out,box-shadow .2s ease-out;
  }
  .ht-field::placeholder{color:var(--ink-400);}
  .ht-field:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 2px var(--brand-200);}
  .ht-field.is-error{border-color:#D92D20;}
  .ht-note{font-size:13px;line-height:1.6;margin-top:6px;}
  .ht-note-err{color:#D92D20;}
  .ht-note-ok{color:#12A150;}

  /* ---------- Hero ---------- */
  .ht-hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start;}
  .ht-hero-media{position:relative;border-radius:var(--r-2xl);overflow:hidden;aspect-ratio:16/9;background:#E8EEF8;}
  .ht-hero-media img{width:100%;height:100%;object-fit:cover;}
  .ht-hero-media .ht-media-top{
    position:absolute;inset:12px 12px auto 12px;display:flex;justify-content:space-between;gap:8px;flex-wrap:wrap;
  }
  .ht-hero-media .ht-media-bottom{
    position:absolute;left:0;right:0;bottom:0;padding:14px 18px;
    background:rgba(14,21,38,.55);color:#fff;
  }
  .ht-hero-media .ht-media-bottom p{font-size:13px;line-height:1.6;opacity:.92;}
  .ht-h1{
    font-size:clamp(28px,4vw,44px);line-height:1.25;font-weight:800;color:var(--ink-900);letter-spacing:0;
  }
  .ht-point{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--ink-700);}
  .ht-point svg{width:20px;height:20px;flex:none;margin-top:3px;stroke:var(--brand-600);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}

  /* ---------- 倒计时 ---------- */
  .ht-countdown{
    display:grid;grid-template-columns:1fr auto;gap:20px;align-items:center;
    padding:20px 24px;border-radius:var(--r-xl);
    background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow-card);
    margin-top:24px;
  }
  .ht-countdown-nums{display:flex;gap:8px;}
  .ht-cd-cell{
    min-width:62px;padding:8px 6px 6px;border-radius:var(--r-md);background:var(--dark);
    text-align:center;color:#fff;
  }
  .ht-cd-num{font-size:28px;font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:-.01em;}
  .ht-cd-label{font-size:12px;line-height:1.4;opacity:.72;}
  .ht-cd-cell.is-tick .ht-cd-num{animation:htTick .15s ease-out;}
  @keyframes htTick{from{transform:scale(.96);}to{transform:scale(1);}}
  @keyframes htPulse{0%{opacity:1;}50%{opacity:.35;}100%{opacity:1;}}

  /* ---------- 编号看点 ---------- */
  .ht-index-list{display:grid;grid-template-columns:repeat(3,1fr);gap:0;}
  .ht-index-item{padding:0 24px;border-left:1px solid var(--border);}
  .ht-index-item:first-child{border-left:0;padding-left:0;}
  .ht-index-no{
    display:inline-flex;align-items:center;justify-content:center;
    width:40px;height:40px;border-radius:50%;border:1px solid var(--brand-200);
    color:var(--brand-600);font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:14px;
  }

  /* ---------- 表单卡 ---------- */
  .ht-subscribe{
    display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center;
    padding:28px;border-radius:var(--r-xl);
    background:var(--brand-50);border:1px solid var(--brand-100);
  }
  .ht-check{display:flex;align-items:flex-start;gap:8px;font-size:12px;color:var(--ink-500);line-height:1.6;}
  .ht-check input{width:16px;height:16px;margin-top:2px;accent-color:var(--brand-600);flex:none;}

  /* ---------- 资讯区 ---------- */
  .ht-news-grid{display:grid;grid-template-columns:7fr 5fr;gap:28px;align-items:start;}
  .ht-news-lead{overflow:hidden;border-radius:var(--r-xl);}
  .ht-news-lead .ht-news-cover{aspect-ratio:16/9;overflow:hidden;background:#E8EEF8;}
  .ht-news-lead .ht-news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease-out;}
  .ht-news-lead:hover .ht-news-cover img{transform:scale(1.03);}
  .ht-clamp2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .ht-news-item{
    display:block;padding:16px 0;border-bottom:1px solid var(--border);
  }
  .ht-news-item:last-child{border-bottom:0;}
  .ht-news-item h3{font-size:15px;font-weight:600;color:var(--ink-900);line-height:1.5;transition:color .2s ease-out;}
  .ht-news-item:hover h3{color:var(--brand-700);}
  .ht-empty{
    min-height:180px;border-radius:var(--r-xl);border:1px dashed var(--border-strong);
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
    background:#fff;text-align:center;padding:24px;
  }
  .ht-empty svg{width:40px;height:40px;stroke:var(--ink-400);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}

  /* ---------- 卡片网格 ---------- */
  .ht-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .ht-media-card{overflow:hidden;}
  .ht-media-card .ht-mc-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#E8EEF8;border-radius:var(--r-xl) var(--r-xl) 0 0;}
  .ht-media-card .ht-mc-cover img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease-out;}
  .ht-media-card:hover .ht-mc-cover img{transform:scale(1.03);}
  .ht-media-card .ht-mc-duration{position:absolute;right:10px;bottom:10px;}

  /* ---------- FAQ ---------- */
  .ht-faq{max-width:860px;}
  .ht-faq-item{
    background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
    margin-bottom:10px;overflow:hidden;transition:border-color .2s ease-out;
  }
  .ht-faq-item.is-open{border-color:var(--brand-200);}
  .ht-faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    min-height:56px;padding:16px 20px;text-align:left;
    font-size:16px;font-weight:600;color:var(--ink-900);
  }
  .ht-faq-sign{
    position:relative;width:20px;height:20px;flex:none;
  }
  .ht-faq-sign::before,.ht-faq-sign::after{
    content:"";position:absolute;background:var(--brand-600);border-radius:2px;transition:transform .22s ease-out;
  }
  .ht-faq-sign::before{left:0;top:9px;width:20px;height:2px;}
  .ht-faq-sign::after{left:9px;top:0;width:2px;height:20px;}
  .ht-faq-item.is-open .ht-faq-sign::after{transform:scaleY(0);}
  .ht-faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease-out;}
  .ht-faq-a p{padding:0 24px 20px;font-size:15px;line-height:1.8;color:var(--ink-500);}

  /* ---------- CTA ---------- */
  .ht-cta{
    display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;
    padding:32px;border-radius:var(--r-2xl);
    background:var(--brand-50);border:1px solid var(--brand-100);
  }

  /* ---------- 页脚 ---------- */
  .ht-footer{background:#fff;border-top:1px solid var(--border);margin-top:24px;}
  .ht-footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding:48px 0 32px;}
  .ht-footer h4{font-size:14px;font-weight:700;color:var(--ink-900);margin-bottom:14px;}
  .ht-footer-links{display:flex;flex-direction:column;gap:10px;}
  .ht-footer-links a{font-size:14px;color:var(--ink-500);transition:color .2s ease-out;}
  .ht-footer-links a:hover{color:var(--brand-600);}
  .ht-footer-bottom{
    background:var(--page);border-top:1px solid var(--border);
    padding:16px 0;font-size:13px;color:var(--ink-500);
    display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1279px){
    :root{--sidebar-w:72px;}
    .ht-logo-text,.ht-nav-item span,.ht-side-card{display:none;}
    .ht-nav-item{justify-content:center;padding:0;}
    .ht-sidebar-head{padding:14px 8px;}
    .ht-logo{justify-content:center;}
  }
  @media (max-width:1023px){
    :root{--sidebar-w:0px;}
    .ht-sidebar{display:none;}
    .ht-mobile-bar{display:flex;}
    .ht-shell-main{margin-left:0;padding-top:56px;}
    .ht-hero-grid{grid-template-columns:1fr;}
    .ht-news-grid{grid-template-columns:1fr;}
    .ht-grid-3{grid-template-columns:repeat(2,1fr);}
    .ht-index-list{grid-template-columns:1fr;}
    .ht-index-item{border-left:0;border-top:1px solid var(--border);padding:20px 0;}
    .ht-index-item:first-child{border-top:0;padding-top:0;}
    .ht-footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
    .ht-countdown{grid-template-columns:1fr;}
  }
  @media (max-width:767px){
    .ht-section{padding:48px 0;}
    .ht-hero-grid{gap:20px;}
    .ht-subscribe{grid-template-columns:1fr;padding:22px;}
    .ht-grid-3{grid-template-columns:1fr;}
    .ht-cta{grid-template-columns:1fr;text-align:left;padding:24px;}
    .ht-cd-cell{min-width:0;flex:1;}
    .ht-cd-num{font-size:26px;}
    .ht-btn{width:100%;}
    .ht-btn-inline{width:auto;}
    .ht-footer-grid{grid-template-columns:1fr;gap:24px;padding:36px 0 24px;}
  }
  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{animation:none !important;transition-duration:.001ms !important;}
    .ht-card-hover:hover{transform:none;}
  }

/* roulang page: article */
:root{
  --brand-50:#EEF4FF; --brand-100:#DCE7FF; --brand-200:#BBD0FF;
  --brand-500:#2E6BE6; --brand-600:#1B57D6; --brand-700:#1442A8;
  --accent:#FF6A1F; --accent-soft:#FFF1E8;
  --ink-900:#0E1526; --ink-700:#334155; --ink-500:#64748B; --ink-300:#94A3B8;
  --bg:#F5F8FC; --surface:#FFFFFF; --line:#E5EBF3; --line-strong:#D3DDEB;
  --dark:#0C1B33; --success:#12A150; --danger:#D92D20;
  --r-sm:8px; --r-md:10px; --r-lg:12px; --r-xl:16px; --r-2xl:20px; --r-pill:999px;
  --shadow-card:0 1px 2px rgba(16,34,64,.04), 0 8px 24px -12px rgba(16,34,64,.12);
  --shadow-hover:0 12px 32px -12px rgba(16,34,64,.20);
  --sidebar-w:232px; --topbar-h:56px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--bg);color:var(--ink-700);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.75;letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:0;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;}
.tnum{font-variant-numeric:tabular-nums;}

/* ============ 容器 ============ */
.ht-container{max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1024px){.ht-container{padding:0 40px;}}

/* ============ 左侧导航 ============ */
.ht-sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:16px 14px;
  overflow-y:auto;z-index:60;
}
.ht-logo{display:flex;align-items:center;gap:10px;min-height:44px;}
.ht-logo-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:var(--r-md);
  background:var(--brand-600);display:flex;align-items:center;justify-content:center;
}
.ht-logo-mark svg{width:22px;height:22px;}
.ht-logo-text{font-size:17px;font-weight:800;color:var(--ink-900);white-space:nowrap;}
.ht-nav{display:flex;flex-direction:column;gap:4px;margin-top:22px;}
.ht-nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:var(--r-md);
  font-size:15px;font-weight:500;color:var(--ink-700);
  transition:background-color .2s ease-out,color .2s ease-out;
}
.ht-nav-item svg{width:20px;height:20px;flex:0 0 20px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.ht-nav-item:hover{background:var(--brand-50);color:var(--brand-600);}
.ht-nav-item.is-active{background:var(--brand-50);color:var(--brand-700);font-weight:600;}
.ht-nav-item.is-active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:0 3px 3px 0;background:var(--brand-600);
}
.ht-side-card{
  margin-top:auto;background:var(--brand-50);border:1px solid var(--brand-100);
  border-radius:14px;padding:16px;font-size:13px;line-height:1.7;color:var(--brand-700);
}
.ht-side-card .ht-btn{margin-top:12px;width:100%;}
.ht-shell-main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;}
.ht-topbar{display:none;}

/* ============ 按钮 ============ */
.ht-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.ht-btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--shadow-card);}
.ht-btn-primary:hover{background:var(--brand-700);transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.ht-btn-primary:active{transform:translateY(0);background:#0F3A96;}
.ht-btn-ghost{background:#fff;color:var(--brand-700);border:1px solid var(--brand-200);}
.ht-btn-ghost:hover{background:var(--brand-50);border-color:var(--brand-500);}
.ht-btn-sm{height:38px;padding:0 14px;font-size:14px;}
.ht-btn-inline{width:auto;}
.ht-btn[disabled]{opacity:.45;cursor:not-allowed;}
.ht-link{color:var(--brand-700);font-weight:600;}
.ht-link:hover{color:var(--brand-600);text-decoration:underline;}

/* ============ 面包屑 ============ */
.ht-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);padding:26px 0 0;}
.ht-crumb a{color:var(--ink-500);}
.ht-crumb a:hover{color:var(--brand-600);}
.ht-crumb .sep{color:var(--line-strong);}
.ht-crumb .current{color:var(--ink-900);font-weight:600;max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ 文章头 ============ */
.ht-article-head{padding:20px 0 22px;border-bottom:1px solid var(--line);}
.ht-article-head h1{
  font-size:clamp(26px,3.4vw,34px);line-height:1.32;font-weight:700;color:var(--ink-900);
}
.ht-article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:16px;font-size:13px;color:var(--ink-500);}
.ht-chip{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:var(--brand-50);color:var(--brand-700);font-size:12px;font-weight:600;
}
.ht-meta-dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong);}

/* ============ 布局 ============ */
.ht-article-layout{display:block;padding:34px 0 0;}
@media (min-width:1280px){
  .ht-article-layout{display:grid;grid-template-columns:minmax(0,760px) 232px;gap:48px;align-items:start;}
}
.ht-article{min-width:0;max-width:760px;}

/* ============ 正文排版 ============ */
.ht-prose{font-size:17px;line-height:1.9;color:var(--ink-700);}
.ht-prose > * + *{margin-top:20px;}
.ht-prose p{margin:0;font-size:17px;line-height:1.9;}
.ht-prose h2{
  position:relative;font-size:24px;line-height:1.4;font-weight:700;color:var(--ink-900);
  margin-top:44px;padding-left:16px;
}
.ht-prose h2::before{
  content:"";position:absolute;left:0;top:5px;width:4px;height:18px;border-radius:2px;background:var(--brand-600);
}
.ht-prose h3{font-size:19px;line-height:1.5;font-weight:600;color:var(--ink-900);margin-top:32px;}
.ht-prose h4{font-size:17px;font-weight:600;color:var(--ink-900);margin-top:26px;}
.ht-prose a{color:var(--brand-700);font-weight:600;}
.ht-prose a:hover{color:var(--brand-600);text-decoration:underline;}
.ht-prose img{border-radius:var(--r-lg);box-shadow:var(--shadow-card);margin:26px 0;height:auto;}
.ht-prose figure{margin:26px 0;}
.ht-prose figcaption{font-size:13px;color:var(--ink-500);text-align:center;margin-top:10px;}
.ht-prose ul,.ht-prose ol{padding-left:24px;}
.ht-prose ul{list-style:disc;}
.ht-prose ol{list-style:decimal;}
.ht-prose ul li::marker{color:var(--brand-500);}
.ht-prose ol li::marker{color:var(--brand-600);font-weight:700;}
.ht-prose li{margin:8px 0;font-size:17px;line-height:1.85;}
.ht-prose blockquote{
  margin:26px 0;padding:16px 20px;background:var(--brand-50);
  border-left:3px solid var(--brand-500);border-radius:0 var(--r-md) var(--r-md) 0;
  font-size:15px;line-height:1.85;color:var(--ink-700);
}
.ht-prose blockquote p{font-size:15px;}
.ht-prose hr{border:0;border-top:1px solid var(--line);margin:34px 0;}
.ht-prose table{width:100%;border-collapse:collapse;font-size:15px;display:block;overflow-x:auto;}
.ht-prose th,.ht-prose td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap;}
.ht-prose th{background:var(--brand-50);color:var(--ink-900);font-weight:600;}
.ht-prose code{background:#F1F5FB;border-radius:6px;padding:2px 6px;font-size:15px;color:var(--ink-900);}
.ht-prose pre{background:#0E1526;color:#E7EDF6;border-radius:var(--r-md);padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.7;}
.ht-prose pre code{background:none;color:inherit;padding:0;}

/* ============ 目录 ============ */
.ht-toc{display:none;}
@media (min-width:1280px){
  .ht-toc{display:block;position:sticky;top:32px;}
}
.ht-toc-title{font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--ink-300);text-transform:uppercase;margin-bottom:12px;}
.ht-toc a{
  display:block;font-size:14px;line-height:1.6;color:var(--ink-500);
  padding:7px 0 7px 12px;border-left:2px solid transparent;
  transition:color .2s ease-out,border-color .2s ease-out;
}
.ht-toc a:hover{color:var(--brand-600);}
.ht-toc a.is-current{color:var(--brand-700);font-weight:600;border-left-color:var(--brand-600);}

/* ============ 文末 ============ */
.ht-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px;padding-top:24px;border-top:1px solid var(--line);}
.ht-tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);font-size:13px;color:var(--ink-500);
  transition:color .2s ease-out,border-color .2s ease-out,background-color .2s ease-out;
}
.ht-tag:hover{color:var(--brand-700);border-color:var(--brand-200);background:var(--brand-50);}
.ht-pager{display:grid;gap:14px;margin-top:28px;}
@media (min-width:768px){.ht-pager{grid-template-columns:1fr 1fr;}}
.ht-pager-item{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  padding:18px 20px;box-shadow:var(--shadow-card);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.ht-pager-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--brand-200);}
.ht-pager-item span{display:block;font-size:12px;color:var(--ink-300);margin-bottom:6px;}
.ht-pager-item strong{font-size:15px;font-weight:600;color:var(--ink-900);line-height:1.6;}

/* ============ 卡片网格 ============ */
.ht-section{margin-top:64px;}
.ht-section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;}
.ht-section-head h2{font-size:clamp(20px,2.4vw,26px);line-height:1.35;font-weight:700;}
.ht-section-sub{font-size:14px;color:var(--ink-500);margin-top:8px;}
.ht-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
  display:flex;flex-direction:column;
}
.ht-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.ht-card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EEF4FF;}
.ht-card-cover img{width:100%;height:100%;object-fit:cover;}
.ht-card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.ht-card-body h3{font-size:17px;font-weight:600;line-height:1.5;color:var(--ink-900);}
.ht-card-body p{font-size:14px;line-height:1.7;color:var(--ink-500);}
.ht-card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:12px;color:var(--ink-300);}
.ht-badge{
  position:absolute;right:12px;bottom:12px;height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:rgba(14,21,38,.7);color:#fff;font-size:12px;font-weight:500;
  display:inline-flex;align-items:center;
}
.ht-grid-3{display:grid;gap:20px;grid-template-columns:1fr;}
@media (min-width:768px){.ht-grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.ht-grid-3{grid-template-columns:repeat(3,minmax(0,1fr));}}

/* ============ CTA ============ */
.ht-cta{
  margin-top:64px;background:var(--brand-50);border:1px solid var(--brand-100);
  border-radius:var(--r-2xl);padding:28px 24px;
  display:flex;flex-direction:column;gap:18px;align-items:flex-start;
}
@media (min-width:768px){.ht-cta{flex-direction:row;align-items:center;justify-content:space-between;padding:32px 36px;}}
.ht-cta h2{font-size:clamp(19px,2.2vw,23px);font-weight:700;line-height:1.4;}
.ht-cta p{font-size:14px;color:var(--ink-500);margin-top:8px;}

/* ============ 表单 ============ */
.ht-field{display:flex;flex-direction:column;gap:6px;}
.ht-input{
  height:44px;border-radius:var(--r-md);border:1px solid var(--line-strong);
  background:#fff;padding:0 14px;font-size:15px;color:var(--ink-900);
  transition:border-color .2s ease-out,box-shadow .2s ease-out;width:100%;
}
.ht-input::placeholder{color:var(--ink-300);}
.ht-input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 2px var(--brand-200);}
.ht-check{display:flex;align-items:flex-start;gap:8px;font-size:12px;line-height:1.7;color:var(--ink-500);}
.ht-check input{width:16px;height:16px;margin-top:3px;accent-color:var(--brand-600);flex:0 0 16px;}
.ht-hint{font-size:13px;line-height:1.5;}
.ht-hint.err{color:var(--danger);}
.ht-hint.ok{color:var(--success);}
.ht-subscribe{
  margin-top:64px;background:#fff;border:1px solid var(--line);border-radius:var(--r-2xl);
  padding:28px 24px;box-shadow:var(--shadow-card);max-width:720px;
}
.ht-subscribe h2{font-size:22px;font-weight:700;}
.ht-subscribe form{margin-top:18px;display:grid;gap:14px;}
@media (min-width:640px){.ht-subscribe form{grid-template-columns:1fr auto;align-items:start;}}
.ht-subscribe .ht-check{grid-column:1 / -1;}

/* ============ 空态 ============ */
.ht-empty{
  border:1px dashed var(--line-strong);border-radius:var(--r-xl);background:#fff;
  padding:38px 24px;text-align:center;
}
.ht-empty svg{width:40px;height:40px;margin:0 auto 12px;stroke:var(--ink-300);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.ht-empty p{font-size:14px;color:var(--ink-500);margin-bottom:16px;}

/* ============ 返回 ============ */
.ht-back{display:flex;justify-content:center;margin-top:32px;}

/* ============ 页脚 ============ */
.ht-footer{margin-top:72px;background:#fff;border-top:1px solid var(--line);}
.ht-footer-grid{display:grid;grid-template-columns:1fr;gap:28px;padding:48px 0 34px;}
@media (min-width:640px){.ht-footer-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.ht-footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;}}
.ht-footer h4{font-size:15px;font-weight:700;color:var(--ink-900);margin-bottom:14px;}
.ht-footer-links{display:flex;flex-direction:column;gap:10px;}
.ht-footer-links a{font-size:14px;color:var(--ink-500);transition:color .2s ease-out;}
.ht-footer-links a:hover{color:var(--brand-600);}
.ht-footer-bottom{
  display:flex;flex-direction:column;gap:8px;background:var(--bg);
  border-top:1px solid var(--line);padding:18px 0;font-size:13px;color:var(--ink-500);
}
@media (min-width:768px){.ht-footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;}}

/* ============ 顶部栏 / 抽屉 ============ */
.ht-drawer-mask{
  position:fixed;inset:0;background:rgba(14,21,38,.45);opacity:0;visibility:hidden;
  transition:opacity .24s ease-out,visibility .24s ease-out;z-index:70;
}
.ht-drawer-mask.is-open{opacity:1;visibility:visible;}
.ht-drawer{
  position:fixed;top:0;left:0;bottom:0;width:280px;background:#fff;z-index:80;
  transform:translateX(-100%);transition:transform .24s ease-out;
  padding:16px 14px;overflow-y:auto;
}
.ht-drawer.is-open{transform:translateX(0);}

@media (max-width:1279px){
  .ht-sidebar{width:72px;padding:16px 8px;}
  .ht-logo-text{display:none;}
  .ht-logo{justify-content:center;}
  .ht-nav-item{justify-content:center;padding:0;}
  .ht-nav-item span{display:none;}
  .ht-side-card{display:none;}
  .ht-shell-main{margin-left:72px;}
}
@media (max-width:1023px){
  .ht-sidebar{display:none;}
  .ht-shell-main{margin-left:0;padding-top:var(--topbar-h);}
  .ht-topbar{
    display:flex;align-items:center;gap:12px;position:fixed;top:0;left:0;right:0;height:var(--topbar-h);
    background:#fff;border-bottom:1px solid var(--line);padding:0 14px;z-index:65;
  }
  .ht-burger{
    width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:var(--r-sm);
    transition:background-color .2s ease-out;
  }
  .ht-burger:hover{background:#F1F5FB;}
  .ht-burger svg{width:22px;height:22px;stroke:var(--ink-900);fill:none;stroke-width:1.7;stroke-linecap:round;}
  .ht-topbar .ht-logo-mark{width:30px;height:30px;flex:0 0 30px;}
  .ht-topbar .ht-logo-text{font-size:16px;}
  .ht-topbar .ht-btn{margin-left:auto;}
}
@media (max-width:767px){
  .ht-article-head h1{font-size:26px;}
  .ht-btn{width:100%;}
  .ht-topbar .ht-btn{width:auto;}
  .ht-back .ht-btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --brand-50:#EEF4FF;
  --brand-100:#DCE7FF;
  --brand-200:#BBD0FF;
  --brand-500:#2E6BE6;
  --brand-600:#1B57D6;
  --brand-700:#1442A8;
  --accent:#FF6A1F;
  --accent-soft:#FFF1E8;
  --ink-900:#0E1526;
  --ink-700:#334155;
  --ink-500:#64748B;
  --ink-400:#94A3B8;
  --surface:#FFFFFF;
  --page:#F5F8FC;
  --line:#E5EBF3;
  --line-strong:#D3DDEB;
  --ok:#12A150;
  --err:#D92D20;
  --r-sm:8px;
  --r-md:10px;
  --r-lg:12px;
  --r-xl:16px;
  --r-2xl:20px;
  --shadow-card:0 1px 2px rgba(16,34,64,.04), 0 8px 24px -12px rgba(16,34,64,.12);
  --shadow-hover:0 12px 32px -12px rgba(16,34,64,.20);
  --font-sans:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink-700);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease-out;}
a:hover{color:var(--brand-600);}
h1,h2,h3,h4{margin:0;color:var(--ink-900);}
p{margin:0 0 16px;}
button,input,select{font:inherit;}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:4px;}

/* ============ 布局骨架 ============ */
.ht-container{max-width:1180px;margin:0 auto;padding:0 24px;}
.ht-main{margin-left:232px;}
.ht-section{padding:80px 0;}
.ht-section + .ht-section{padding-top:0;}

/* ============ 侧边栏 ============ */
.ht-sidebar{
  position:fixed;top:0;left:0;width:232px;height:100vh;
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;z-index:60;
}
.ht-sidebar-brand{
  display:flex;align-items:center;gap:10px;height:64px;padding:0 20px;
  border-bottom:1px solid var(--line);flex:none;
}
.ht-logo{display:inline-flex;align-items:center;gap:10px;}
.ht-logo-mark{
  width:34px;height:34px;border-radius:10px;background:var(--brand-600);
  display:flex;align-items:center;justify-content:center;flex:none;
}
.ht-logo-mark svg{width:20px;height:20px;display:block;}
.ht-logo-text{font-size:17px;font-weight:700;color:var(--ink-900);line-height:1.2;}
.ht-nav{display:flex;flex-direction:column;gap:4px;padding:16px 12px;flex:1 1 auto;overflow-y:auto;}
.ht-nav-item{
  position:relative;display:flex;align-items:center;gap:10px;
  min-height:40px;padding:0 12px;border-radius:var(--r-md);
  color:var(--ink-700);font-size:15px;font-weight:500;
  transition:background-color .2s ease-out,color .2s ease-out;
}
.ht-nav-item svg{
  width:20px;height:20px;flex:none;fill:none;stroke:currentColor;
  stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;
}
.ht-nav-item:hover{background:var(--brand-50);color:var(--brand-600);}
.ht-nav-item.is-active{background:var(--brand-50);color:var(--brand-700);font-weight:600;}
.ht-nav-item.is-active::before{
  content:"";position:absolute;left:-12px;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:0 3px 3px 0;background:var(--brand-600);
}
.ht-sidebar-card{
  margin:12px;padding:14px;border-radius:14px;background:var(--brand-50);
  border:1px solid var(--brand-100);flex:none;
}
.ht-sidebar-card p{margin:0 0 10px;font-size:13px;line-height:1.6;color:var(--brand-700);}

/* ============ 移动顶栏与抽屉 ============ */
.ht-topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:70;
  background:#fff;border-bottom:1px solid var(--line);align-items:center;gap:8px;padding:0 12px;
}
.ht-icon-btn{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border:none;background:transparent;border-radius:var(--r-sm);cursor:pointer;color:var(--ink-700);
  transition:background-color .2s ease-out;
}
.ht-icon-btn:hover{background:#F1F5FB;}
.ht-icon-btn svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.ht-overlay{
  position:fixed;inset:0;background:rgba(14,21,38,.45);
  opacity:0;pointer-events:none;transition:opacity .24s ease-out;z-index:80;
}
.ht-overlay.is-open{opacity:1;pointer-events:auto;}
.ht-drawer{
  position:fixed;top:0;left:0;width:280px;height:100vh;background:#fff;z-index:90;
  transform:translateX(-100%);transition:transform .24s ease-out;
  display:flex;flex-direction:column;
}
.ht-drawer.is-open{transform:translateX(0);}
.ht-drawer-head{
  height:56px;display:flex;align-items:center;justify-content:space-between;
  padding:0 12px 0 18px;border-bottom:1px solid var(--line);
}
.ht-drawer .ht-nav{padding:12px;}
.ht-drawer .ht-nav-item{min-height:48px;padding:0 14px;}

/* ============ 页面头部 ============ */
.ht-page-head{padding:48px 0 28px;border-bottom:1px solid var(--line);}
.ht-breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-500);margin-bottom:18px;
}
.ht-breadcrumb a{color:var(--ink-500);}
.ht-breadcrumb a:hover{color:var(--brand-600);text-decoration:underline;}
.ht-breadcrumb .sep{color:var(--ink-400);}
.ht-breadcrumb .current{color:var(--ink-700);}
.ht-h1{
  font-size:clamp(28px,4vw,40px);line-height:1.25;font-weight:800;
  color:var(--ink-900);margin-bottom:14px;
}
.ht-lead{font-size:17px;line-height:1.75;color:var(--ink-500);max-width:760px;margin:0;}
.ht-h2{
  font-size:clamp(22px,2.6vw,30px);line-height:1.3;font-weight:700;
  color:var(--ink-900);margin-bottom:12px;
}
.ht-section-desc{font-size:16px;line-height:1.75;color:var(--ink-500);max-width:720px;margin:0 0 28px;}

/* ============ 图文双栏 ============ */
.ht-split{display:grid;grid-template-columns:3fr 2fr;gap:40px;align-items:center;}
.ht-split-text p{font-size:16px;line-height:1.8;color:var(--ink-700);margin:0 0 16px;}
.ht-split-text p:last-child{margin-bottom:0;}
.ht-split-media img{
  width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:var(--r-xl);
  box-shadow:var(--shadow-card);
}

/* ============ 指标卡 ============ */
.ht-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.ht-stat{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  padding:22px 20px;box-shadow:var(--shadow-card);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.ht-stat:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.ht-stat-num{
  font-size:30px;font-weight:800;line-height:1.1;color:var(--brand-700);
  font-variant-numeric:tabular-nums;margin-bottom:6px;
}
.ht-stat-num small{font-size:15px;font-weight:600;margin-left:4px;color:var(--brand-600);}
.ht-stat-label{font-size:15px;font-weight:600;color:var(--ink-900);margin-bottom:4px;}
.ht-stat-desc{font-size:13px;line-height:1.6;color:var(--ink-500);margin:0;}

/* ============ 两列图文卡 ============ */
.ht-cards-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.ht-media-card{
  display:grid;grid-template-columns:40% 1fr;gap:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.ht-media-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.ht-media-card img{width:100%;height:100%;min-height:150px;object-fit:cover;}
.ht-media-body{padding:20px 22px;display:flex;flex-direction:column;}
.ht-media-body h3{font-size:17px;font-weight:600;line-height:1.4;margin-bottom:8px;}
.ht-media-body p{font-size:14px;line-height:1.75;color:var(--ink-500);margin:0 0 14px;}
.ht-more{
  margin-top:auto;font-size:14px;font-weight:600;color:var(--brand-700);
  display:inline-flex;align-items:center;gap:6px;min-height:44px;
}
.ht-more:hover{color:var(--brand-600);text-decoration:underline;}

/* ============ FAQ ============ */
.ht-faq{max-width:860px;}
.ht-faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  margin-bottom:10px;overflow:hidden;transition:border-color .2s ease-out;
}
.ht-faq-item[open]{border-color:var(--brand-200);}
.ht-faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink-900);min-height:44px;
}
.ht-faq-item summary::-webkit-details-marker{display:none;}
.ht-faq-item summary::after{
  content:"+";font-size:20px;font-weight:600;color:var(--brand-600);line-height:1;flex:none;
}
.ht-faq-item[open] summary::after{content:"−";}
.ht-faq-item summary:hover{background:#FAFCFF;}
.ht-faq-body{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--ink-500);}

/* ============ 按钮与 CTA ============ */
.ht-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  text-decoration:none;white-space:nowrap;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.ht-btn-primary{background:var(--brand-600);color:#fff;}
.ht-btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(27,87,214,.75);}
.ht-btn-primary:active{transform:translateY(0);}
.ht-btn-ghost{background:#fff;border-color:var(--brand-200);color:var(--brand-700);}
.ht-btn-ghost:hover{background:var(--brand-50);border-color:var(--brand-500);color:var(--brand-700);}
.ht-btn-sm{height:38px;padding:0 14px;font-size:14px;border-radius:9px;}
.ht-btn-inline{width:auto;}

.ht-cta{
  background:var(--brand-50);border:1px solid var(--brand-100);border-radius:var(--r-2xl);
  padding:34px 36px;display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.ht-cta h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;margin-bottom:8px;}
.ht-cta p{margin:0;font-size:15px;line-height:1.7;color:var(--ink-500);}
.ht-cta-actions{display:flex;gap:12px;flex:none;}

/* ============ 页脚 ============ */
.ht-footer{background:#fff;border-top:1px solid var(--line);margin-top:0;}
.ht-footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;padding:56px 0 40px;}
.ht-footer h4{font-size:15px;font-weight:600;color:var(--ink-900);margin:0 0 14px;}
.ht-footer-links{display:flex;flex-direction:column;gap:10px;}
.ht-footer-links a{font-size:14px;color:var(--ink-500);}
.ht-footer-links a:hover{color:var(--brand-600);text-decoration:underline;}
.ht-footer-bottom{
  background:var(--page);border-top:1px solid var(--line);
  padding:16px 0;display:flex;justify-content:space-between;gap:12px;
  font-size:13px;line-height:1.6;color:var(--ink-500);
}

/* ============ 响应式 ============ */
@media (min-width:1024px) and (max-width:1279px){
  .ht-sidebar{width:72px;}
  .ht-sidebar-brand{padding:0;justify-content:center;}
  .ht-logo-text{display:none;}
  .ht-nav{padding:16px 8px;}
  .ht-nav-item{justify-content:center;padding:0;}
  .ht-nav-item span{display:none;}
  .ht-nav-item.is-active::before{left:-8px;}
  .ht-sidebar-card{display:none;}
  .ht-main{margin-left:72px;}
}
@media (max-width:1279px){
  .ht-main{margin-left:72px;}
}
@media (min-width:1024px){
  .ht-drawer,.ht-overlay{display:none;}
}
@media (max-width:1023px){
  .ht-main{margin-left:0;padding-top:56px;}
  .ht-sidebar{display:none;}
  .ht-topbar{display:flex;}
  .ht-container{padding:0 24px;}
  .ht-page-head{padding:32px 0 22px;}
  .ht-split{grid-template-columns:1fr;gap:24px;}
  .ht-split-media{order:-1;}
  .ht-stats{grid-template-columns:repeat(2,1fr);}
  .ht-cards-2{grid-template-columns:1fr;}
  .ht-cta{flex-direction:column;align-items:flex-start;padding:28px 24px;}
  .ht-cta-actions{width:100%;flex-direction:column;}
  .ht-cta-actions .ht-btn{width:100%;}
  .ht-footer-grid{grid-template-columns:1fr 1fr;padding:44px 0 32px;}
}
@media (max-width:767px){
  .ht-section{padding:52px 0;}
  .ht-section + .ht-section{padding-top:0;}
  .ht-h1{font-size:28px;}
  .ht-media-card{grid-template-columns:1fr;}
  .ht-media-card img{min-height:180px;aspect-ratio:16/9;}
  .ht-footer-grid{grid-template-columns:1fr;gap:28px;}
  .ht-footer-bottom{flex-direction:column;gap:6px;}
}
@media (max-width:520px){
  .ht-stats{grid-template-columns:1fr;}
  .ht-container{padding:0 18px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --brand-50:#EEF4FF; --brand-100:#DCE7FF; --brand-200:#BBD0FF;
  --brand-500:#2E6BE6; --brand-600:#1B57D6; --brand-700:#1442A8;
  --accent:#FF6A1F; --accent-600:#E85B12; --accent-50:#FFF1E8;
  --ink-900:#0E1526; --ink-700:#334155; --ink-500:#64748B; --ink-400:#94A3B8;
  --line:#E5EBF3; --line-strong:#D3DDEB; --bg:#F5F8FC; --card:#FFFFFF;
  --ok:#12A150; --err:#D92D20; --warn:#F5A524;
  --r-sm:8px; --r-md:10px; --r-lg:12px; --r-xl:16px; --r-2xl:20px; --r-pill:999px;
  --sh-card:0 1px 2px rgba(16,34,64,.04), 0 8px 24px -12px rgba(16,34,64,.12);
  --sh-hover:0 12px 32px -12px rgba(16,34,64,.20);
  --shell-w:232px; --topbar-h:56px; --anchor-top:64px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;background:var(--bg);color:var(--ink-700);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease-out,background-color .18s ease-out,border-color .18s ease-out;}
a:hover{color:var(--brand-600);}
button,input{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:0;}
p{margin:0;}

/* ============ 容器 ============ */
.ht-container{max-width:1180px;margin:0 auto;padding:0 24px;}
@media (min-width:1024px){ .ht-container{padding:0 40px;} }

/* ============ 左侧 App Shell ============ */
.ht-shell{
  position:fixed;left:0;top:0;bottom:0;width:var(--shell-w);background:var(--card);
  border-right:1px solid var(--line);display:flex;flex-direction:column;
  padding:18px 14px 20px;overflow-y:auto;z-index:60;
}
.ht-shell-top{padding:6px 6px 18px;border-bottom:1px solid var(--line);margin-bottom:14px;}
.ht-logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--ink-900);}
.ht-logo:hover{color:var(--brand-700);}
.ht-logo-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;background:var(--brand-600);
  display:inline-flex;align-items:center;justify-content:center;
}
.ht-logo-mark svg{width:20px;height:20px;display:block;}
.ht-logo-text{line-height:1.2;}
.ht-nav{display:flex;flex-direction:column;gap:4px;}
.ht-nav-item{
  position:relative;display:flex;align-items:center;gap:10px;height:40px;padding:0 12px;
  border-radius:var(--r-md);font-size:15px;color:var(--ink-700);font-weight:500;
  transition:background-color .18s ease-out,color .18s ease-out;
}
.ht-nav-item svg{
  width:20px;height:20px;flex:0 0 20px;fill:none;stroke:currentColor;stroke-width:1.7;
  stroke-linecap:round;stroke-linejoin:round;
}
.ht-nav-item:hover{background:var(--brand-50);color:var(--brand-600);}
.ht-nav-item.is-active{background:var(--brand-50);color:var(--brand-700);font-weight:600;}
.ht-nav-item.is-active::before{
  content:"";position:absolute;left:2px;top:9px;bottom:9px;width:3px;border-radius:2px;background:var(--brand-600);
}
.ht-shell-card{
  margin-top:auto;background:var(--brand-50);border:1px solid var(--brand-100);border-radius:14px;
  padding:14px;margin-top:22px;
}
.ht-shell-card p{font-size:13px;line-height:1.65;color:var(--ink-500);margin-bottom:10px;}

/* ============ 移动端顶栏 / 抽屉 ============ */
.ht-topbar{
  display:none;position:fixed;left:0;right:0;top:0;height:var(--topbar-h);background:var(--card);
  border-bottom:1px solid var(--line);align-items:center;gap:8px;padding:0 10px;z-index:65;
}
.ht-menu-btn{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:0;border-radius:var(--r-sm);color:var(--ink-900);cursor:pointer;
  transition:background-color .18s ease-out;
}
.ht-menu-btn:hover{background:#EEF2F8;}
.ht-menu-btn svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;}
.ht-topbar .ht-logo{margin-right:auto;font-size:16px;}
.ht-topbar .ht-logo-mark{width:30px;height:30px;flex:0 0 30px;border-radius:9px;}
.ht-topbar .ht-logo-mark svg{width:18px;height:18px;}
.ht-overlay{
  position:fixed;inset:0;background:rgba(14,21,38,.45);opacity:0;visibility:hidden;
  transition:opacity .24s ease-out,visibility .24s ease-out;z-index:70;
}
.ht-overlay.is-open{opacity:1;visibility:visible;}
.ht-drawer{
  position:fixed;left:0;top:0;bottom:0;width:280px;background:var(--card);z-index:80;
  transform:translateX(-100%);transition:transform .24s ease-out;padding:16px 14px 24px;overflow-y:auto;
  border-right:1px solid var(--line);
}
.ht-drawer.is-open{transform:translateX(0);}
.ht-drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.ht-drawer .ht-nav-item{height:48px;}
.ht-drawer .ht-shell-card{margin-top:20px;}

/* ============ 主内容 ============ */
.ht-main{margin-left:var(--shell-w);min-height:100vh;padding-bottom:0;}

/* ============ 面包屑 ============ */
.ht-breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);
  padding:26px 0 18px;
}
.ht-breadcrumb a{color:var(--ink-500);}
.ht-breadcrumb a:hover{color:var(--brand-600);}
.ht-breadcrumb .sep{color:var(--line-strong);}
.ht-breadcrumb .current{color:var(--ink-900);font-weight:500;}

/* ============ 页头 ============ */
.ht-page-head{padding-bottom:28px;border-bottom:1px solid var(--line);}
.ht-page-head h1{
  font-size:clamp(28px,4vw,44px);line-height:1.25;font-weight:800;color:var(--ink-900);
  margin-bottom:14px;max-width:900px;
}
.ht-page-head .lede{font-size:16px;line-height:1.8;color:var(--ink-500);max-width:760px;}
.ht-head-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;}
.ht-tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:500;background:var(--brand-50);color:var(--brand-700);border:1px solid var(--brand-100);
}

/* ============ 粘性锚点条 ============ */
.ht-anchorbar{
  position:sticky;top:var(--anchor-top);z-index:40;background:var(--card);
  border-bottom:1px solid var(--line);margin-top:24px;
}
.ht-anchorbar-inner{
  max-width:1180px;margin:0 auto;padding:0 24px;min-height:48px;display:flex;align-items:center;gap:8px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.ht-anchorbar-inner::-webkit-scrollbar{display:none;}
@media (min-width:1024px){ .ht-anchorbar-inner{padding:0 40px;} }
.ht-anchor-chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--r-pill);
  font-size:14px;font-weight:500;color:var(--ink-500);white-space:nowrap;
  border:1px solid transparent;transition:all .18s ease-out;
}
.ht-anchor-chip:hover{background:var(--brand-50);color:var(--brand-700);}
.ht-anchor-chip.is-active{background:var(--brand-600);color:#fff;font-weight:600;}

/* ============ 板块 ============ */
.ht-section{padding:64px 0 0;}
@media (max-width:767px){ .ht-section{padding:48px 0 0;} }
.ht-section-head{margin-bottom:26px;max-width:820px;}
.ht-section-head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;font-weight:700;color:var(--ink-900);margin-bottom:10px;}
.ht-section-head p{font-size:15px;line-height:1.8;color:var(--ink-500);}

/* ============ 编号步骤 ============ */
.ht-steps{display:flex;flex-direction:column;gap:28px;}
.ht-step{display:grid;grid-template-columns:56px 1fr;gap:20px;}
.ht-step-num{
  position:relative;font-size:24px;font-weight:800;color:var(--brand-600);line-height:1.1;
  font-variant-numeric:tabular-nums;min-height:44px;
}
.ht-step:not(:last-child) .ht-step-num::after{
  content:"";position:absolute;left:50%;top:38px;bottom:-34px;width:1px;background:var(--line-strong);
  transform:translateX(-50%);
}
.ht-step-body h3{font-size:18px;line-height:1.45;font-weight:600;color:var(--ink-900);margin-bottom:8px;}
.ht-step-body p{font-size:14px;line-height:1.8;color:var(--ink-500);max-width:760px;}
.ht-step-note{
  display:inline-flex;align-items:center;gap:6px;margin-top:10px;font-size:13px;
  color:var(--brand-700);background:var(--brand-50);border:1px solid var(--brand-100);
  border-radius:var(--r-sm);padding:4px 10px;
}

/* ============ 指标卡 ============ */
.ht-metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;}
.ht-metric{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-xl);padding:22px;
  box-shadow:var(--sh-card);transition:box-shadow .2s ease-out,transform .2s ease-out;
}
.ht-metric:hover{box-shadow:var(--sh-hover);transform:translateY(-2px);}
.ht-metric .value{
  font-size:30px;font-weight:800;color:var(--brand-700);line-height:1.15;
  font-variant-numeric:tabular-nums;
}
.ht-metric .label{margin-top:8px;font-size:14px;font-weight:600;color:var(--ink-900);}
.ht-metric .desc{margin-top:6px;font-size:13px;line-height:1.65;color:var(--ink-500);}

/* ============ 宽幅配图 ============ */
.ht-figure-wide{
  position:relative;border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--line);background:#E9EFF8;
}
.ht-figure-wide img{width:100%;aspect-ratio:21/9;object-fit:cover;}
.ht-figure-wide .caption{
  position:absolute;left:0;right:0;bottom:0;background:rgba(14,21,38,.55);color:#fff;
  font-size:13px;line-height:1.6;padding:10px 16px;
}
@media (max-width:767px){ .ht-figure-wide img{aspect-ratio:16/10;} }

/* ============ 图集 ============ */
.ht-gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;}
.ht-gallery figure{
  position:relative;margin:0;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  background:var(--card);
}
.ht-gallery img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .22s ease-out;}
.ht-gallery figure:hover img{transform:scale(1.04);}
.ht-gallery figcaption{
  position:absolute;left:0;right:0;bottom:0;background:rgba(14,21,38,.55);color:#fff;
  font-size:12px;line-height:1.5;padding:7px 10px;
}

/* ============ 入口清单 ============ */
.ht-entries{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.ht-entry{
  display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:78px;
  background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 20px;
  transition:box-shadow .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
}
.ht-entry:hover{box-shadow:var(--sh-hover);transform:translateY(-2px);border-color:var(--brand-200);}
.ht-entry h3{font-size:16px;font-weight:600;color:var(--ink-900);margin-bottom:6px;}
.ht-entry p{font-size:13px;line-height:1.6;color:var(--ink-500);}
.ht-entry .arrow{
  flex:0 0 34px;width:34px;height:34px;border-radius:50%;background:var(--brand-50);
  display:inline-flex;align-items:center;justify-content:center;color:var(--brand-700);
}
.ht-entry .arrow svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}

/* ============ 表单 / 订阅 ============ */
.ht-subscribe{
  max-width:720px;margin:0 auto;background:var(--brand-50);border:1px solid var(--brand-100);
  border-radius:var(--r-xl);padding:32px 28px;text-align:center;
}
.ht-subscribe h2{font-size:clamp(20px,2.4vw,26px);line-height:1.35;font-weight:700;color:var(--ink-900);margin-bottom:10px;}
.ht-subscribe > p{font-size:15px;line-height:1.8;color:var(--ink-500);max-width:520px;margin:0 auto 22px;}
.ht-form-row{display:flex;gap:12px;justify-content:center;}
.ht-input{
  height:44px;width:100%;border:1px solid var(--line-strong);border-radius:var(--r-md);
  padding:0 14px;background:var(--card);color:var(--ink-900);font-size:15px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.ht-input::placeholder{color:var(--ink-400);}
.ht-input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px var(--brand-200);}
.ht-input.is-error{border-color:var(--err);}
.ht-check{
  display:flex;align-items:flex-start;gap:8px;justify-content:center;margin-top:14px;
  font-size:12px;line-height:1.6;color:var(--ink-500);text-align:left;
}
.ht-check input{width:16px;height:16px;margin-top:2px;accent-color:var(--brand-600);flex:0 0 16px;}
.ht-form-msg{font-size:13px;margin-top:6px;min-height:18px;}
.ht-form-msg.err{color:var(--err);}
.ht-form-msg.ok{color:var(--ok);}

/* ============ 按钮 ============ */
.ht-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;
  border-radius:var(--r-md);border:1px solid transparent;background:var(--brand-600);color:#fff;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.ht-btn:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-hover);}
.ht-btn:active{transform:translateY(0);background:#0F3488;}
.ht-btn-ghost{background:var(--card);color:var(--brand-700);border-color:var(--brand-200);}
.ht-btn-ghost:hover{background:var(--brand-50);border-color:var(--brand-500);color:var(--brand-700);}
.ht-btn-sm{height:36px;padding:0 14px;font-size:14px;border-radius:var(--r-sm);}
.ht-btn-inline{display:inline-flex;}
.ht-btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 页脚 ============ */
.ht-footer{background:var(--card);border-top:1px solid var(--line);margin-top:76px;}
.ht-footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding:52px 0 36px;
}
.ht-footer h4{font-size:15px;font-weight:600;color:var(--ink-900);margin-bottom:14px;}
.ht-footer-links{display:flex;flex-direction:column;}
.ht-footer-links a{font-size:14px;color:var(--ink-500);padding:6px 0;transition:color .18s ease-out,transform .18s ease-out;}
.ht-footer-links a:hover{color:var(--brand-600);transform:translateX(2px);}
.ht-footer-bottom{
  border-top:1px solid var(--line);padding:18px 0;display:flex;flex-wrap:wrap;gap:10px;
  justify-content:space-between;font-size:13px;line-height:1.7;color:var(--ink-500);
}

/* ============ 响应式 ============ */
@media (max-width:1279px) and (min-width:1024px){
  :root{ --shell-w:72px; }
  .ht-shell{padding:18px 10px;align-items:center;}
  .ht-shell-top{padding:6px 0 14px;display:flex;justify-content:center;}
  .ht-logo-text{display:none;}
  .ht-nav{width:100%;align-items:center;}
  .ht-nav-item{justify-content:center;width:48px;height:44px;padding:0;}
  .ht-nav-item span{display:none;}
  .ht-shell-card{display:none;}
}
@media (max-width:1023px){
  :root{ --anchor-top:var(--topbar-h); }
  .ht-shell{display:none;}
  .ht-topbar{display:flex;}
  .ht-main{margin-left:0;padding-top:var(--topbar-h);}
}
@media (max-width:1023px) and (min-width:768px){
  .ht-metrics{grid-template-columns:repeat(2,minmax(0,1fr));}
  .ht-gallery{grid-template-columns:repeat(2,minmax(0,1fr));}
  .ht-footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
}
@media (max-width:767px){
  .ht-main{padding-top:var(--topbar-h);}
  .ht-metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;}
  .ht-metric{padding:16px;}
  .ht-metric .value{font-size:24px;}
  .ht-gallery{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;}
  .ht-entries{grid-template-columns:minmax(0,1fr);}
  .ht-step{grid-template-columns:44px 1fr;gap:14px;}
  .ht-step-num{font-size:20px;}
  .ht-subscribe{padding:24px 18px;}
  .ht-form-row{flex-direction:column;}
  .ht-form-row .ht-btn{width:100%;}
  .ht-check{justify-content:flex-start;}
  .ht-footer-grid{grid-template-columns:minmax(0,1fr);gap:26px;padding:40px 0 28px;}
  .ht-footer-bottom{flex-direction:column;gap:6px;}
  .ht-page-head h1{font-size:28px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  .ht-entry:hover,.ht-metric:hover,.ht-btn:hover{transform:none !important;}
  .ht-gallery figure:hover img{transform:none !important;}
}