/* roulang page: index */
:root{
    --bg:#F6F4F0; --surface:#FFFFFF; --ink:#101014; --ink-2:#3A3A42; --muted:#6E6E78;
    --line:#E3DFD8; --primary:#6E3BFF; --primary-deep:#4A21C9; --primary-soft:#EDE7FF;
    --accent:#24E0B0; --pop:#FF7A45; --dark:#0E0E12;
    --r-lg:18px; --r-sm:14px; --r-btn:10px;
    --ease:cubic-bezier(.2,.7,.2,1);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth;scroll-padding-top:132px}
  body{margin:0;background:var(--bg);color:var(--ink);font-size:16px;line-height:1.9;
    font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    -webkit-font-smoothing:antialiased;overflow-x:hidden}
  img{display:block;max-width:100%}
  a{color:inherit;text-decoration:none}
  button,input{font:inherit;color:inherit}
  button{cursor:pointer;background:none;border:none}
  h1,h2,h3,h4,p{margin:0}
  ul{margin:0;padding:0;list-style:none}
  .num{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-variant-numeric:tabular-nums}
  .container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
  @media (min-width:768px){.container-x{padding:0 32px}}
  @media (min-width:1280px){.container-x{padding:0 40px}}
  .section{padding:56px 0}
  @media (min-width:768px){.section{padding:72px 0}}
  @media (min-width:1024px){.section{padding:96px 0}}
  .section-tight{padding:44px 0}
  @media (min-width:1024px){.section-tight{padding:60px 0}}

  /* 滚动条 */
  ::-webkit-scrollbar{width:10px;height:10px}
  ::-webkit-scrollbar-track{background:var(--bg)}
  ::-webkit-scrollbar-thumb{background:#CFC9BE;border-radius:999px;border:3px solid var(--bg)}
  ::-webkit-scrollbar-thumb:hover{background:#B7B0A4}
  .hide-scroll{scrollbar-width:none;-ms-overflow-style:none}
  .hide-scroll::-webkit-scrollbar{display:none}

  /* 导航 */
  .site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);
    transition:box-shadow .2s var(--ease),background .2s var(--ease)}
  .site-header.is-scrolled{box-shadow:0 8px 26px -20px rgba(16,16,20,.5)}
  .nav-row1{height:56px;display:flex;align-items:center;gap:14px}
  @media (min-width:1024px){.nav-row1{height:64px;gap:24px}}
  .site-header.is-scrolled .nav-row1{height:56px}
  .logo-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(140deg,var(--primary),var(--primary-deep));
    display:grid;place-items:center;color:#fff;font-weight:800;font-size:14px;letter-spacing:-.5px;flex:0 0 auto}
  .logo-text{font-weight:800;font-size:17px;letter-spacing:-.02em;white-space:nowrap}
  .logo-sub{display:block;font-size:11px;font-weight:500;color:var(--muted);line-height:1.2;letter-spacing:.02em}
  .search-box{position:relative;flex:1;max-width:360px}
  .search-box input{width:100%;height:40px;border:1px solid var(--line);border-radius:var(--r-btn);
    background:#fff;padding:0 14px 0 38px;font-size:14px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
  .search-box input::placeholder{color:#A3A3AD}
  .search-box input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(110,59,255,.16)}
  .search-box svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--muted)}
  .tabs-row{position:relative;border-top:1px solid var(--line)}
  .tabs-scroll{display:flex;gap:8px;overflow-x:auto;padding:7px 0;scroll-snap-type:x proximity}
  .tab-pill{flex:0 0 auto;height:34px;display:inline-flex;align-items:center;padding:0 16px;border-radius:999px;
    font-size:14px;font-weight:500;border:1px solid var(--line);background:transparent;color:var(--ink-2);
    transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);scroll-snap-align:start}
  .tab-pill:hover{background:var(--primary-soft);border-color:var(--primary-soft);color:var(--primary-deep)}
  .tab-pill.is-active{background:var(--primary);border-color:var(--primary);color:#fff}
  .fade-edge::before,.fade-edge::after{content:"";position:absolute;top:0;bottom:0;width:24px;pointer-events:none;z-index:2}
  .fade-edge::before{left:0;background:linear-gradient(90deg,rgba(255,255,255,.98),rgba(255,255,255,0))}
  .fade-edge::after{right:0;background:linear-gradient(270deg,rgba(255,255,255,.98),rgba(255,255,255,0))}
  .icon-btn{width:44px;height:44px;display:grid;place-items:center;border-radius:var(--r-btn);border:1px solid var(--line);
    background:#fff;transition:background .2s var(--ease),color .2s var(--ease)}
  .icon-btn:hover{background:var(--primary-soft);color:var(--primary-deep)}
  .drawer{position:fixed;inset:0;z-index:60;visibility:hidden;pointer-events:none}
  .drawer.open{visibility:visible;pointer-events:auto}
  .drawer-mask{position:absolute;inset:0;background:rgba(16,16,20,.45);opacity:0;transition:opacity .3s var(--ease)}
  .drawer.open .drawer-mask{opacity:1}
  .drawer-panel{position:absolute;top:0;right:0;bottom:0;width:min(88vw,360px);background:#fff;padding:20px;
    transform:translateX(100%);transition:transform .32s var(--ease);overflow-y:auto}
  .drawer.open .drawer-panel{transform:translateX(0)}
  .drawer-link{display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:0 14px;
    border:1px solid var(--line);border-radius:var(--r-btn);margin-bottom:10px;font-weight:500}
  .drawer-link:hover{background:var(--primary-soft);border-color:var(--primary-soft)}

  /* 按钮 */
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 22px;
    border-radius:var(--r-btn);font-size:15px;font-weight:600;transition:transform .2s var(--ease),
    background-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
  .btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 24px -16px rgba(110,59,255,.9)}
  .btn-primary:hover{background:var(--primary-deep);transform:translateY(-2px)}
  .btn-primary:active{transform:translateY(0);background:#3E19AE}
  .btn-primary:disabled{background:#C9C5D8;color:#fff;box-shadow:none;cursor:not-allowed;transform:none}
  .btn-outline{border:1px solid var(--ink);color:var(--ink);background:transparent}
  .btn-outline:hover{background:var(--ink);color:#fff}
  .btn-outline:active{background:#000}
  .btn-outline:disabled{border-color:#D5D2CC;color:#A3A3AD;cursor:not-allowed}
  .btn-round{border-radius:999px}
  .btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:15px;font-weight:600;
    min-height:44px;transition:color .2s var(--ease)}
  .btn-text svg{transition:transform .2s var(--ease)}
  .btn-text:hover{color:var(--primary-deep);text-decoration:underline;text-underline-offset:4px}
  .btn-text:hover svg{transform:translateX(2px)}
  .btn:focus-visible,.btn-text:focus-visible,.tab-pill:focus-visible,.icon-btn:focus-visible,
  .faq-head:focus-visible,.drawer-link:focus-visible,a:focus-visible{
    outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

  /* 标签与徽章 */
  .pill{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600}
  .pill-cat{background:rgba(110,59,255,.12);color:var(--primary-deep)}
  .pill-accent{background:rgba(36,224,176,.18);color:#0E7A5F}
  .pill-pop{background:rgba(255,122,69,.16);color:#B8410F}
  .tag{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;border:1px solid var(--line);
    font-size:13px;color:var(--ink-2);background:#fff}

  /* 卡片 */
  .card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:0 1px 2px rgba(16,16,20,.04),
    0 12px 32px -18px rgba(16,16,20,.18);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
  .card:hover{transform:translateY(-3px);box-shadow:0 2px 4px rgba(16,16,20,.06),0 22px 44px -20px rgba(16,16,20,.28)}
  .card-media{overflow:hidden;border-radius:12px;background:var(--primary-soft)}
  .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease)}
  .card:hover .card-media img{transform:scale(1.03)}
  .clamp-1{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
  .clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
  .img-fallback{border:1px dashed rgba(110,59,255,.45);background:linear-gradient(135deg,var(--primary-soft),var(--bg))}

  /* Hero */
  .hero{position:relative;overflow:hidden;background:var(--bg)}
  .hero::before{content:"";position:absolute;inset:0;pointer-events:none;
    background-image:linear-gradient(rgba(16,16,20,.045) 1px,transparent 1px),
      linear-gradient(90deg,rgba(16,16,20,.045) 1px,transparent 1px);
    background-size:48px 48px;
    -webkit-mask-image:radial-gradient(120% 80% at 20% 0%,#000 0%,transparent 70%);
    mask-image:radial-gradient(120% 80% at 20% 0%,#000 0%,transparent 70%)}
  .hero h1{font-size:clamp(34px,6vw,68px);line-height:1.06;font-weight:800;letter-spacing:-.02em}
  .hero-visual{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);background:var(--primary-soft)}
  .float-card{position:absolute;left:-8px;bottom:-8px;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
    box-shadow:0 2px 4px rgba(16,16,20,.06),0 22px 44px -20px rgba(16,16,20,.28);padding:10px 12px;display:flex;gap:10px;align-items:center;
    max-width:78%}
  @media (min-width:768px){.float-card{left:-20px;bottom:20px}}
  .stat-chip{border-left:2px solid var(--primary);padding-left:10px}

  /* 评价轮播 */
  .rail{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 4px 14px}
  .rail > *{scroll-snap-align:start;flex:0 0 auto;width:300px}
  @media (min-width:640px){.rail > *{width:330px}}
  .rail-bar{height:4px;border-radius:999px;background:var(--line);overflow:hidden}
  .rail-bar span{display:block;height:100%;width:32%;border-radius:999px;background:var(--primary);transition:width .3s var(--ease)}
  .star{color:#FFB020}

  /* 资讯列表 */
  .news-row{display:block;padding:18px 20px;border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;
    transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease)}
  .news-row:hover{background:rgba(110,59,255,.08);border-color:rgba(110,59,255,.28);transform:translateY(-2px)}
  .news-row .row-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:8px}
  .news-row h3{font-size:17px;font-weight:600;line-height:1.5}
  .news-row p{font-size:14px;color:var(--muted);margin-top:6px;line-height:1.75}
  .news-row .row-bottom{display:flex;align-items:center;justify-content:space-between;margin-top:12px;font-size:13px;color:var(--muted)}

  /* 时间轴 */
  .timeline{position:relative}
  .timeline::before{content:"";position:absolute;left:19px;top:8px;bottom:8px;width:1px;background:var(--line)}
  @media (min-width:768px){.timeline::before{left:23px}}
  .tl-item{position:relative;padding-left:56px;padding-bottom:32px}
  @media (min-width:768px){.tl-item{padding-left:68px;padding-bottom:40px}}
  .tl-item:last-child{padding-bottom:0}
  .tl-num{position:absolute;left:0;top:0;width:40px;height:40px;border-radius:999px;border:1px solid var(--line);background:#fff;
    display:grid;place-items:center;font-size:13px;font-weight:700;color:var(--primary-deep);transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease)}
  @media (min-width:768px){.tl-num{width:48px;height:48px;font-size:14px}}
  .tl-item:hover .tl-num{background:var(--primary);border-color:var(--primary);color:#fff}

  /* FAQ */
  .faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;transition:border-color .2s var(--ease)}
  .faq-item + .faq-item{margin-top:12px}
  .faq-item.open{border-color:rgba(110,59,255,.4)}
  .faq-head{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;
    padding:16px 18px;font-size:16px;font-weight:600;min-height:56px}
  .faq-icon{flex:0 0 auto;width:24px;height:24px;position:relative}
  .faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px;transition:transform .2s var(--ease)}
  .faq-icon::before{left:4px;right:4px;top:11px;height:2px}
  .faq-icon::after{top:4px;bottom:4px;left:11px;width:2px}
  .faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0}
  .faq-body{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
  .faq-body-inner{padding:0 18px 18px;border-left:2px solid var(--primary);margin-left:18px;padding-left:14px;
    font-size:15px;line-height:1.85;color:var(--ink-2)}

  /* 表单 */
  .field label{display:block;font-size:13px;font-weight:600;color:#EDEDF2;margin-bottom:6px}
  .field input{width:100%;height:44px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.18);
    background:rgba(255,255,255,.06);color:#fff;padding:0 14px;font-size:15px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
  .field input::placeholder{color:rgba(255,255,255,.42)}
  .field input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(36,224,176,.22)}
  .field.error input{border-color:var(--pop)}
  .field .tip{display:none;font-size:12px;color:#FFB39A;margin-top:6px}
  .field.error .tip{display:block}

  /* 页脚 */
  .site-footer{background:var(--dark);color:#C9C9D2;padding:56px 0 24px;margin-top:0}
  .site-footer .f-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.02em}
  .site-footer a{color:#A8A8B3;font-size:14px;transition:color .2s var(--ease)}
  .site-footer a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
  .site-footer .f-list li + li{margin-top:10px}
  .site-footer .f-divider{border-top:1px solid rgba(255,255,255,.10)}
  .footer-logo-text{font-weight:800;color:#fff;font-size:17px}

  /* 动效 */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
  .reveal.in{opacity:1;transform:none}
  @media (prefers-reduced-motion: reduce){
    html{scroll-behavior:auto}
    *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
    .reveal{opacity:1;transform:none}
  }

/* roulang page: article */
:root{
  --bg:#F6F4F0; --surface:#FFFFFF; --ink:#101014; --ink-2:#3A3A42; --muted:#6E6E78;
  --line:#E3DFD8; --primary:#6E3BFF; --primary-deep:#4A21C9; --primary-soft:#EDE7FF;
  --accent:#24E0B0; --pop:#FF7A45; --dark:#0E0E12;
  --r-lg:18px; --r-md:14px; --r-sm:10px;
  --sh-1:0 1px 2px rgba(16,16,20,.04), 0 12px 32px -18px rgba(16,16,20,.18);
  --sh-2:0 2px 6px rgba(16,16,20,.06), 0 22px 44px -20px rgba(16,16,20,.26);
  --t:200ms cubic-bezier(.2,.7,.2,1);
  --t-slow:320ms cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:140px}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.9;
}
img{max-width:100%;display:block;object-fit:cover}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{list-style:none;padding:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.hide-scroll{scrollbar-width:none;-ms-overflow-style:none}
.hide-scroll::-webkit-scrollbar{display:none}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container-x{padding:0 32px}}
@media(min-width:1280px){.container-x{padding:0 40px}}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--line);transition:box-shadow var(--t)}
.site-header.is-scrolled{box-shadow:0 10px 30px -22px rgba(16,16,20,.42)}
.header-main-inner{display:flex;align-items:center;gap:14px;height:56px;transition:height var(--t)}
@media(min-width:768px){.header-main-inner{height:64px}}
.site-header.is-scrolled .header-main-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;flex:none;min-height:44px}
.logo-mark{width:36px;height:36px;border-radius:10px;background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:800;font-size:14px;letter-spacing:.02em;flex:none}
.logo-text{font-weight:800;font-size:17px;letter-spacing:-.01em;white-space:nowrap}
.header-search{position:relative;flex:1;max-width:420px;display:none}
@media(min-width:1024px){.header-search{display:block}}
.header-search input{width:100%;height:44px;border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;padding:0 14px 0 42px;outline:none;transition:border-color var(--t),box-shadow var(--t)}
.header-search input::placeholder{color:#9C9CA6}
.header-search input:focus{border-color:var(--primary);box-shadow:0 0 0 2px rgba(110,59,255,.18)}
.header-search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:18px;height:18px;color:var(--muted)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px;flex:none}
.hamburger{width:44px;height:44px;display:grid;place-items:center;border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;transition:background var(--t),border-color var(--t)}
.hamburger:hover{background:var(--primary-soft);border-color:var(--primary-soft)}
@media(min-width:1024px){.hamburger{display:none}}
.hamburger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}
.header-tabs{border-top:1px solid var(--line);position:relative}
@media(min-width:1024px){.header-tabs{border-top:0}}
.tabs-scroll{display:flex;gap:8px;overflow-x:auto;padding:8px 0;white-space:nowrap}
.tab-pill{flex:none;display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;border:1px solid var(--line);color:var(--ink-2);font-size:14px;font-weight:500;transition:background var(--t),color var(--t),border-color var(--t)}
.tab-pill:hover{background:var(--primary-soft);border-color:var(--primary-soft);color:var(--primary-deep)}
.tab-pill.is-active{background:var(--primary);border-color:var(--primary);color:#fff}
.tab-pill.is-active:hover{background:var(--primary-deep);border-color:var(--primary-deep);color:#fff}

/* ---------- buttons ---------- */
.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:12px 22px;border-radius:var(--r-sm);background:var(--primary);color:#fff;font-weight:600;font-size:15px;border:1px solid transparent;transition:background var(--t),transform var(--t),box-shadow var(--t)}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-primary:active{transform:translateY(0);background:var(--primary-deep)}
.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:12px 22px;border-radius:var(--r-sm);background:transparent;border:1px solid var(--ink);color:var(--ink);font-weight:600;font-size:15px;transition:background var(--t),color var(--t),transform var(--t)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-ghost:disabled{opacity:.45;cursor:not-allowed;transform:none}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:15px;min-height:44px}
.btn-link svg{width:16px;height:16px;transition:transform var(--t)}
.btn-link:hover{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}
.btn-link:hover svg{transform:translateX(2px)}

/* ---------- drawer ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(16,16,20,.42);z-index:50;opacity:0;transition:opacity var(--t)}
.drawer-mask.is-open{opacity:1}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(340px,88vw);background:#fff;z-index:51;padding:18px 20px 28px;transform:translateX(100%);transition:transform var(--t-slow);display:flex;flex-direction:column;gap:14px;border-left:1px solid var(--line);overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;font-size:20px;line-height:1;display:grid;place-items:center;transition:background var(--t)}
.drawer-close:hover{background:var(--primary-soft)}
.drawer-search input{width:100%;height:44px;border:1px solid var(--line);border-radius:var(--r-sm);padding:0 14px;outline:none}
.drawer-search input:focus{border-color:var(--primary);box-shadow:0 0 0 2px rgba(110,59,255,.18)}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-top:4px}
.drawer-link{display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:var(--r-sm);font-weight:600;color:var(--ink-2);transition:background var(--t),color var(--t)}
.drawer-link:hover{background:var(--primary-soft);color:var(--primary-deep)}
.drawer-link.is-active{background:var(--primary);color:#fff}
.drawer-cta{margin-top:auto;width:100%}

/* ---------- breadcrumb ---------- */
.crumb-band{padding:20px 0 0}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);overflow:hidden;white-space:nowrap}
.breadcrumb a{min-height:44px;display:inline-flex;align-items:center;transition:color var(--t)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:#C9C4BB}
.breadcrumb .current{color:var(--ink-2);display:inline-block;max-width:20ch;overflow:hidden;text-overflow:ellipsis;vertical-align:middle}

/* ---------- article ---------- */
.article-shell{padding:16px 0 0}
.article-grid{display:grid;gap:32px;grid-template-columns:minmax(0,1fr)}
@media(min-width:1024px){.article-grid{grid-template-columns:minmax(0,760px) 220px;justify-content:center;gap:48px}}
.article-main{min-width:0}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:rgba(110,59,255,.12);color:var(--primary-deep);font-size:12px;font-weight:600}
.badge-accent{background:rgba(36,224,176,.18);color:#0E7C61}
.badge-pop{background:rgba(255,122,69,.16);color:#C2451A}
.article-title{font-size:clamp(28px,4vw,44px);line-height:1.2;font-weight:700;letter-spacing:-.01em;max-width:760px;color:var(--ink)}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px;font-size:13px;color:var(--muted)}
.meta-row time,.meta-row .num{font-family:ui-monospace,SFMono-Regular,Consolas,monospace}
.meta-dot{width:4px;height:4px;border-radius:50%;background:#CFCAC1}
.share-btn{display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 12px;border:1px solid var(--line);border-radius:999px;background:#fff;font-size:13px;color:var(--ink-2);transition:border-color var(--t),background var(--t),color var(--t);margin-left:2px}
.share-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
.share-btn svg{width:15px;height:15px}
.article-divider{height:1px;background:var(--line);margin:28px 0 8px}
.article-body{padding:8px 0 0}

/* ---------- prose ---------- */
.prose-cn{max-width:760px;font-size:16px;line-height:1.9;color:var(--ink-2);text-align:left}
.prose-cn>*+*{margin-top:1.4em}
.prose-cn h2{position:relative;margin:2.1em 0 .7em;padding-left:14px;font-size:clamp(20px,2.4vw,26px);line-height:1.35;font-weight:700;color:var(--ink)}
.prose-cn h2:first-child{margin-top:0}
.prose-cn h2::before{content:"";position:absolute;left:0;top:.42em;width:3px;height:18px;border-radius:2px;background:var(--primary)}
.prose-cn h3{margin:1.7em 0 .5em;font-size:20px;font-weight:600;color:var(--ink)}
.prose-cn p{margin:0}
.prose-cn strong{color:var(--ink);font-weight:600}
.prose-cn a{color:var(--primary);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}
.prose-cn a:hover{color:var(--primary-deep)}
.prose-cn ul{padding-left:1.2em}
.prose-cn ul li{position:relative;padding-left:2px;margin:.5em 0}
.prose-cn ul li::before{content:"";position:absolute;left:-1.05em;top:.72em;width:6px;height:6px;border-radius:2px;background:var(--primary)}
.prose-cn ol{list-style:decimal;padding-left:1.5em}
.prose-cn ol li{margin:.5em 0;padding-left:2px}
.prose-cn ol li::marker{color:var(--primary);font-family:ui-monospace,Consolas,monospace}
.prose-cn blockquote{margin:1.6em 0;padding:16px 18px;background:var(--primary-soft);border-left:3px solid var(--primary);border-radius:0 12px 12px 0;color:var(--ink-2)}
.prose-cn blockquote p{margin:0}
.prose-cn img{border-radius:12px;margin:1.6em 0;width:100%}
.prose-cn figure{margin:1.6em 0}
.prose-cn figcaption{font-size:12px;color:var(--muted);text-align:center;margin-top:10px}
.prose-cn table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px}
.prose-cn th{background:var(--bg);text-align:left;font-weight:600;color:var(--ink)}
.prose-cn th,.prose-cn td{border:1px solid var(--line);padding:12px 14px}
.prose-cn code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;background:var(--primary-soft);color:var(--primary-deep);padding:2px 6px;border-radius:6px;font-size:.92em}
.table-wrap{overflow-x:auto;margin:1.6em 0;border-radius:12px}
.table-wrap table{margin:0}

/* ---------- toc ---------- */
.article-aside{display:none}
@media(min-width:1024px){.article-aside{display:block}}
.toc-card{position:sticky;top:140px;border-left:1px solid var(--line);padding-left:18px}
.toc-title{font-size:13px;font-weight:700;color:var(--ink);letter-spacing:.02em;margin-bottom:10px}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-link{display:block;padding:6px 0 6px 10px;font-size:13px;line-height:1.6;color:var(--muted);border-left:2px solid transparent;margin-left:-20px;padding-left:18px;transition:color var(--t),border-color var(--t)}
.toc-link:hover{color:var(--primary)}
.toc-link.is-current{color:var(--primary);border-left-color:var(--primary);font-weight:600}

/* ---------- empty ---------- */
.empty-state{min-height:96px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:36px 20px;background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);text-align:center}
.empty-state svg{width:34px;height:34px;color:rgba(110,59,255,.35)}
.empty-state p{font-size:14px;color:var(--muted)}

/* ---------- tags ---------- */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.tag-label{font-size:13px;color:var(--muted);font-weight:600}
.tag-pill{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:var(--ink-2);transition:background var(--t),border-color var(--t),color var(--t),transform var(--t)}
.tag-pill:hover{background:var(--primary-soft);border-color:var(--primary-soft);color:var(--primary-deep);transform:translateY(-1px)}

/* ---------- sections ---------- */
.section{margin-top:56px}
@media(min-width:768px){.section{margin-top:72px}}
@media(min-width:1024px){.section{margin-top:96px}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.section-title{font-size:clamp(22px,2.6vw,30px);line-height:1.2;font-weight:700;letter-spacing:-.01em}
.section-sub{font-size:14px;color:var(--muted);margin-top:8px}

/* ---------- related cards ---------- */
.card-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media(min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;display:flex;flex-direction:column;transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D8D2C8}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,var(--primary-soft),var(--bg))}
.card-media img{width:100%;height:100%;transition:transform var(--t-slow)}
.card:hover .card-media img{transform:scale(1.03)}
.card-media .badge{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.94)}
.card-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:18px;line-height:1.45;font-weight:600;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-desc{font-size:14px;line-height:1.75;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:6px}
.card-meta{font-size:13px;color:var(--muted);font-family:ui-monospace,SFMono-Regular,Consolas,monospace}

/* ---------- cta band ---------- */
.cta-band{background:#fff;border:1px solid var(--primary);border-radius:var(--r-lg);padding:28px 24px;display:flex;flex-direction:column;gap:18px}
@media(min-width:768px){.cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:32px 36px}}
.cta-band h2{font-size:clamp(20px,2.4vw,26px);font-weight:700;color:var(--ink);line-height:1.3}
.cta-band p{margin-top:8px;font-size:14px;color:var(--muted)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- bottom nav ---------- */
.page-end{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-top:40px;padding-top:24px;border-top:1px solid var(--line)}
.to-top{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);transition:color var(--t)}
.to-top:hover{color:var(--primary)}
.to-top svg{width:16px;height:16px}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#fff;margin-top:96px;padding:56px 0 28px}
@media(min-width:768px){.site-footer{padding:64px 0 32px}}
.footer-logo-text{font-weight:800;font-size:17px;color:#fff}
.f-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.02em}
.f-list{display:flex;flex-direction:column;gap:10px}
.f-list a{font-size:14px;color:#A8A8B3;transition:color var(--t),text-underline-offset var(--t);display:inline-block;min-height:24px}
.f-list a:hover{color:#fff;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}
.f-divider{border-top:1px solid rgba(255,255,255,.10)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity var(--t-slow),transform var(--t-slow)}
.reveal.is-in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --bg:#F6F4F0;
  --surface:#FFFFFF;
  --ink:#101014;
  --ink-2:#3A3A42;
  --muted:#6E6E78;
  --line:#E3DFD8;
  --primary:#6E3BFF;
  --primary-deep:#4A21C9;
  --primary-soft:#EDE7FF;
  --accent:#24E0B0;
  --pop:#FF7A45;
  --dark:#0E0E12;
  --font-sans:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --r-panel:18px;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(16,16,20,.04), 0 12px 32px -18px rgba(16,16,20,.18);
  --sh-2:0 2px 4px rgba(16,16,20,.06), 0 20px 44px -20px rgba(16,16,20,.26);
  --ease:cubic-bezier(.2,.7,.2,1);
  --t:200ms;
  --sec:56px;
}
@media (min-width:768px){:root{--sec:72px}}
@media (min-width:1024px){:root{--sec:96px}}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:132px}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--font-sans);font-size:16px;line-height:1.9;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.15;letter-spacing:-.01em}
p{margin:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit;color:inherit}
img{display:block;max-width:100%;height:auto}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums}

.hide-scroll{scrollbar-width:none;-ms-overflow-style:none}
.hide-scroll::-webkit-scrollbar{display:none;height:0;width:0}

.container-x{width:100%;max-width:1200px;margin-inline:auto;padding-inline:20px}
@media (min-width:768px){.container-x{padding-inline:32px}}
@media (min-width:1280px){.container-x{padding-inline:40px}}

.section{padding-block:calc(var(--sec) / 2)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:32px}
.h2{font-size:clamp(26px,3vw,38px);font-weight:700;line-height:1.15;letter-spacing:-.015em}
.sec-sub{margin-top:12px;color:var(--muted);font-size:15px;line-height:1.8;max-width:640px}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(8px)}
.nav-top-inner{display:flex;align-items:center;gap:16px;height:64px;transition:height var(--t) var(--ease)}
@media (max-width:767px){.nav-top-inner{height:56px}}
.site-header.is-shrink{box-shadow:0 10px 30px -22px rgba(16,16,20,.5)}
.site-header.is-shrink .nav-top-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:34px;height:34px;border-radius:10px;background:var(--primary);color:#fff;font-weight:800;font-size:14px;letter-spacing:.02em;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 20px -12px rgba(110,59,255,.9)}
.logo-text{font-size:18px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.search-box{position:relative;flex:1 1 auto;max-width:420px;display:none}
@media (min-width:1024px){.search-box{display:block}}
.search-box svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--muted)}
.search-box input{width:100%;height:44px;padding:0 14px 0 38px;background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);font-size:14px;transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease)}
.search-box input::placeholder{color:#9C9CA6}
.search-box input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(110,59,255,.18)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.menu-btn{width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--ink);transition:background var(--t) var(--ease),border-color var(--t) var(--ease)}
.menu-btn:hover{background:var(--primary-soft);border-color:transparent;color:var(--primary-deep)}
@media (min-width:1024px){.menu-btn{display:none}}

.tabs-row{border-top:1px solid transparent}
.tabs-scroll{
  display:flex;align-items:center;gap:8px;overflow-x:auto;
  padding:6px max(20px, calc((100vw - 1200px) / 2 + 40px)) 12px;
  -webkit-overflow-scrolling:touch;
}
@media (min-width:768px) and (max-width:1279px){
  .tabs-scroll{padding-inline:32px}
}
.tab-pill{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);background:transparent;color:var(--ink-2);
  font-size:14px;font-weight:500;white-space:nowrap;
  transition:background var(--t) var(--ease),color var(--t) var(--ease),border-color var(--t) var(--ease);
}
.tab-pill:hover{background:var(--primary-soft);color:var(--primary-deep);border-color:transparent}
.tab-pill.is-active{background:var(--primary);color:#fff;border-color:var(--primary)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;border:1px solid transparent;
  transition:background var(--t) var(--ease),color var(--t) var(--ease),border-color var(--t) var(--ease),transform var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 12px 26px -16px rgba(110,59,255,.95)}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);background:#3d1a9e}
.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-ghost:active{background:#000}
.btn-outline{background:#fff;border-color:var(--primary);color:var(--primary-deep)}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-outline:active{background:var(--primary-deep);border-color:var(--primary-deep);color:#fff}
.btn-link{display:inline-flex;align-items:center;gap:6px;padding:4px 0;color:var(--primary-deep);font-size:14px;font-weight:600}
.btn-link svg{transition:transform var(--t) var(--ease)}
.btn-link:hover{text-decoration:underline;text-underline-offset:4px}
.btn-link:hover svg{transform:translateX(2px)}
.btn-link:active{color:#31127d}

.badge{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:600;background:rgba(110,59,255,.12);color:var(--primary-deep)}
.badge-accent{background:rgba(36,224,176,.20);color:#0A6E55}
.badge-pop{background:rgba(255,122,69,.16);color:#B8431A}

/* ---------- Banner ---------- */
.page-banner{position:relative;isolation:isolate;overflow:hidden;padding:40px 0 44px}
@media (min-width:768px){.page-banner{padding:68px 0 60px}}
.banner-bg{position:absolute;inset:0;z-index:-2;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;}
.banner-mask{position:absolute;inset:0;z-index:-1;background:linear-gradient(100deg,rgba(14,14,18,.92) 0%,rgba(14,14,18,.74) 52%,rgba(74,33,201,.58) 100%)}
.crumbs{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(255,255,255,.68)}
.crumbs a:hover{color:#fff}
.crumbs .sep{color:rgba(255,255,255,.4)}
.crumbs .cur{color:rgba(255,255,255,.9)}
.banner-title{margin-top:20px;color:#fff;font-size:clamp(32px,5vw,54px);font-weight:800;line-height:1.08;letter-spacing:-.025em}
.banner-sub{margin-top:16px;max-width:600px;color:rgba(255,255,255,.84);font-size:16px;line-height:1.8}
.banner-stats{display:flex;flex-wrap:wrap;gap:20px 40px;margin-top:30px}
.stat-num{font-size:28px;font-weight:700;color:#fff;font-family:var(--font-mono)}
@media (min-width:768px){.stat-num{font-size:32px}}
.stat-label{margin-top:4px;font-size:12px;color:rgba(255,255,255,.7)}

/* ---------- Filter pills ---------- */
.filter-wrap{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.filter-bar{display:flex;align-items:center;gap:10px;overflow-x:auto;padding-bottom:4px;flex:1 1 auto}
.chip{
  display:inline-flex;align-items:center;height:40px;padding:0 18px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);font-size:14px;font-weight:500;white-space:nowrap;
  transition:background var(--t) var(--ease),color var(--t) var(--ease),border-color var(--t) var(--ease);
}
.chip:hover{background:var(--primary-soft);color:var(--primary-deep);border-color:transparent}
.chip.is-active{background:var(--primary);color:#fff;border-color:var(--primary)}
.chip.is-active:hover{background:var(--primary-deep);color:#fff}

/* ---------- Package cards ---------- */
.pkg-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:1024px){.pkg-grid{grid-template-columns:repeat(2,1fr)}}
.pkg-card{
  display:grid;grid-template-columns:1fr;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-panel);overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
}
@media (min-width:760px){.pkg-card{grid-template-columns:40% 1fr}}
.pkg-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D6D0F6}
.pkg-media{position:relative;min-height:210px;overflow:hidden;background:linear-gradient(135deg,var(--primary-soft),var(--bg));border-bottom:1px dashed rgba(110,59,255,.22)}
@media (min-width:760px){.pkg-media{border-bottom:0;border-right:1px dashed rgba(110,59,255,.18)}}
.pkg-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.pkg-card:hover .pkg-media img{transform:scale(1.03)}
.card-tag{position:absolute;top:14px;left:14px;z-index:2;display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:600;background:var(--primary);color:#fff;box-shadow:0 8px 18px -12px rgba(16,16,20,.8)}
.card-tag.is-pop{background:var(--pop);color:#fff}
.card-tag.is-accent{background:var(--accent);color:#08402F}
.pkg-body{padding:24px;display:flex;flex-direction:column}
.pkg-title{font-size:19px;font-weight:700;line-height:1.4}
.pkg-desc{margin-top:10px;color:var(--muted);font-size:14.5px;line-height:1.75}
.spec-list{margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);display:grid;gap:10px}
.spec-row{display:flex;align-items:center;justify-content:space-between;gap:14px;font-size:14px}
.spec-row dt{color:var(--muted)}
.spec-row dd{margin:0;font-weight:700;font-family:var(--font-mono);font-size:14px;color:var(--ink)}
.pkg-actions{margin-top:auto;padding-top:22px;display:flex;flex-wrap:wrap;gap:12px}

/* ---------- Table ---------- */
.table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:var(--r-panel);box-shadow:var(--sh-1)}
table.cmp{width:100%;min-width:820px;border-collapse:collapse}
table.cmp thead th{
  background:var(--bg);color:var(--muted);font-size:13px;font-weight:600;text-align:left;
  padding:18px 20px;white-space:nowrap;border-bottom:1px solid var(--line);
}
table.cmp tbody td{padding:18px 20px;height:56px;font-size:14.5px;color:var(--ink-2);border-bottom:1px solid var(--line)}
table.cmp tbody tr:nth-child(even){background:#FBFAF7}
table.cmp tbody tr:hover{background:var(--primary-soft)}
table.cmp tbody td:first-child{font-weight:700;color:var(--ink)}
table.cmp tbody tr:last-child td{border-bottom:0}
.td-num{font-family:var(--font-mono);font-weight:700;color:var(--ink)}

/* ---------- Guard strip ---------- */
.guard-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:640px){.guard-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.guard-grid{grid-template-columns:repeat(4,1fr)}}
.guard-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease)}
.guard-item:hover{transform:translateY(-3px);box-shadow:var(--sh-1)}
.guard-ico{width:40px;height:40px;border-radius:12px;background:var(--primary-soft);color:var(--primary-deep);display:flex;align-items:center;justify-content:center}
.guard-title{margin-top:14px;font-size:16px;font-weight:700}
.guard-text{margin-top:8px;font-size:13.5px;line-height:1.75;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);transition:box-shadow var(--t) var(--ease),border-color var(--t) var(--ease)}
.faq-item:hover{box-shadow:var(--sh-1)}
.faq-item.open{border-color:#D6D0F6}
.faq-q{width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;font-size:16px;font-weight:600;text-align:left}
.faq-ico{position:relative;flex:0 0 auto;width:20px;height:20px;color:var(--primary)}
.faq-ico::before,.faq-ico::after{content:"";position:absolute;background:currentColor;border-radius:2px;transition:transform var(--t) var(--ease),opacity var(--t) var(--ease)}
.faq-ico::before{left:9px;top:3px;width:2px;height:14px}
.faq-ico::after{top:9px;left:3px;width:14px;height:2px}
.faq-item.open .faq-ico::before{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height 320ms var(--ease)}
.faq-a-inner{position:relative;margin:0 20px 20px 20px;padding:0 0 0 16px;border-left:2px solid var(--primary);font-size:15px;line-height:1.85;color:var(--ink-2)}

/* ---------- CTA ---------- */
.cta-outline{
  background:#fff;border:1px solid var(--primary);border-radius:var(--r-panel);
  padding:30px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;box-shadow:var(--sh-1);
}
@media (min-width:768px){.cta-outline{padding:38px}}
.cta-title{font-size:clamp(20px,2.4vw,26px);font-weight:700;line-height:1.35}
.cta-text{margin-top:10px;color:var(--muted);font-size:14.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark);color:#fff;padding:64px 0 32px;margin-top:var(--sec);border-top:1px solid rgba(255,255,255,.06)}
.footer-logo-text{font-size:17px;font-weight:800;letter-spacing:-.01em}
.f-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.f-list li+li{margin-top:12px}
.f-list a{color:#A8A8B3;font-size:14px;transition:color var(--t) var(--ease)}
.f-list a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.f-divider{border-top:1px solid rgba(255,255,255,.10)}
.logo-mark--dark{background:var(--primary)}

/* ---------- Drawer ---------- */
.drawer{position:fixed;inset:0;z-index:60;background:rgba(14,14,18,.55);opacity:0;visibility:hidden;transition:opacity 240ms var(--ease)}
.drawer.open{opacity:1;visibility:visible}
.drawer-panel{position:absolute;top:0;right:0;bottom:0;width:min(88vw,360px);background:#fff;padding:20px;transform:translateX(100%);transition:transform 280ms var(--ease);overflow-y:auto}
.drawer.open .drawer-panel{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line);display:flex;align-items:center;justify-content:center}
.drawer-close:hover{background:var(--primary-soft);border-color:transparent;color:var(--primary-deep)}
.drawer-nav{margin-top:18px;display:grid;gap:10px}
.drawer-nav a{display:flex;align-items:center;min-height:48px;padding:0 16px;border:1px solid var(--line);border-radius:var(--r-btn);font-size:15px;font-weight:600;color:var(--ink-2)}
.drawer-nav a.is-active{background:var(--primary);border-color:var(--primary);color:#fff}
.drawer-form{margin-top:22px;display:grid;gap:12px}
.drawer-form label{font-size:13px;color:var(--muted)}
.drawer-form input{height:44px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-btn);font-size:14px}
.drawer-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(110,59,255,.18)}

/* ---------- To top ---------- */
.to-top{position:fixed;right:20px;bottom:24px;z-index:30;width:44px;height:44px;border-radius:999px;background:#fff;border:1px solid var(--line);box-shadow:var(--sh-1);display:flex;align-items:center;justify-content:center;color:var(--ink-2);opacity:0;visibility:hidden;transition:opacity var(--t) var(--ease),transform var(--t) var(--ease),visibility var(--t)}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{transform:translateY(-3px);color:var(--primary-deep);border-color:#D6D0F6}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 600ms var(--ease),transform 600ms var(--ease)}
.reveal.in{opacity:1;transform:none}

@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --bg:#F6F4F0;
  --surface:#FFFFFF;
  --ink:#101014;
  --ink-2:#3A3A42;
  --muted:#6E6E78;
  --line:#E3DFD8;
  --primary:#6E3BFF;
  --primary-deep:#4A21C9;
  --primary-soft:#EDE7FF;
  --accent:#24E0B0;
  --pop:#FF7A45;
  --dark:#0E0E12;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:10px;
  --sh-1:0 1px 2px rgba(16,16,20,.04), 0 12px 32px -18px rgba(16,16,20,.18);
  --sh-2:0 2px 4px rgba(16,16,20,.06), 0 22px 48px -22px rgba(16,16,20,.28);
  --ease:cubic-bezier(.2,.7,.2,1);
  --font-sans:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Consolas,"Courier New",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:136px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{background:none;border:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
.mono{font-family:var(--font-mono)}
::selection{background:var(--primary-soft);color:var(--primary-deep)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:#D3CEC5;border-radius:8px;border:2px solid var(--bg)}
::-webkit-scrollbar-thumb:hover{background:#BCB6AC}

.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}}
@media(min-width:1280px){.container-x{padding-left:40px;padding-right:40px}}

/* ============ 头部导航 ============ */
.site-head{
  position:sticky;top:0;z-index:40;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s var(--ease);
}
.site-head.is-shrink{box-shadow:0 10px 30px -22px rgba(16,16,20,.5)}
.head-top{display:flex;align-items:center;height:64px;transition:height .2s var(--ease)}
.site-head.is-shrink .head-top{height:56px}
.head-top-inner{display:flex;align-items:center;gap:18px;width:100%}
.brand{display:inline-flex;align-items:center;gap:10px;min-height:44px;flex:0 0 auto}
.logo-mark{
  width:34px;height:34px;border-radius:var(--r-sm);
  background:var(--primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-size:13px;font-weight:800;letter-spacing:.02em;
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.head-search{position:relative;flex:1 1 auto;max-width:420px;display:none}
@media(min-width:1024px){.head-search{display:block}}
.head-search svg{position:absolute;left:13px;top:50%;transform:translateY(-50%);color:var(--muted)}
.head-search input{
  width:100%;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#fff;
  padding:0 14px 0 40px;font-size:14px;outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.head-search input::placeholder{color:#9C9CA6}
.head-search input:focus{border-color:var(--primary);box-shadow:0 0 0 2px rgba(110,59,255,.22)}
.head-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;border-radius:var(--r-sm);
  border:1px solid transparent;font-size:14px;font-weight:600;
  cursor:pointer;transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn-primary:hover{background:var(--primary-deep);border-color:var(--primary-deep);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:#fff}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;min-height:44px;
  color:var(--primary);font-size:14px;font-weight:600;
}
.link-arrow svg{transition:transform .2s var(--ease)}
.link-arrow:hover{text-decoration:underline;text-underline-offset:4px}
.link-arrow:hover svg{transform:translateX(2px)}
.burger{
  width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  background:#fff;cursor:pointer;transition:border-color .2s var(--ease),background-color .2s var(--ease);
}
.burger:hover{border-color:var(--primary);background:var(--primary-soft)}
.burger:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
@media(min-width:1024px){.burger{display:none}}
.head-tabs{border-top:1px solid var(--line)}
.tabs-scroll{
  display:flex;align-items:center;gap:8px;
  padding:6px 0;overflow-x:auto;white-space:nowrap;
  scrollbar-width:none;-ms-overflow-style:none;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 24px,#000 calc(100% - 24px),transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 24px,#000 calc(100% - 24px),transparent 100%);
}
.hide-scroll::-webkit-scrollbar{display:none}
.tab-pill{
  flex:0 0 auto;display:inline-flex;align-items:center;min-height:36px;
  padding:0 16px;border-radius:999px;border:1px solid var(--line);
  font-size:14px;font-weight:500;color:var(--ink-2);background:transparent;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.tab-pill:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary-deep)}
.tab-pill.is-active{background:var(--primary);border-color:var(--primary);color:#fff}
.tab-pill:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

/* ============ 移动抽屉 ============ */
.drawer{position:fixed;inset:0;z-index:60;opacity:0;pointer-events:none;transition:opacity .25s var(--ease)}
.drawer.is-open{opacity:1;pointer-events:auto}
.drawer::before{content:'';position:absolute;inset:0;background:rgba(14,14,18,.45)}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:min(88vw,360px);
  background:#fff;padding:20px;display:flex;flex-direction:column;gap:16px;
  overflow-y:auto;transform:translateX(100%);transition:transform .28s var(--ease);
}
.drawer.is-open .drawer-panel{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.icon-btn{
  width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:border-color .2s var(--ease),background-color .2s var(--ease);
}
.icon-btn:hover{border-color:var(--primary);background:var(--primary-soft)}
.icon-btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.drawer-search input{
  width:100%;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);
  padding:0 14px;font-size:14px;outline:none;background:#fff;
}
.drawer-search input:focus{border-color:var(--primary);box-shadow:0 0 0 2px rgba(110,59,255,.22)}
.drawer-link{
  display:flex;align-items:center;min-height:48px;padding:0 14px;
  border-radius:var(--r-md);border:1px solid var(--line);
  font-size:15px;font-weight:600;color:var(--ink-2);
  transition:background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.drawer-link:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary-deep)}
.drawer-link.is-active{background:var(--primary);border-color:var(--primary);color:#fff}
.drawer-nav{display:flex;flex-direction:column;gap:10px}

/* ============ Banner ============ */
.page-banner{position:relative;overflow:hidden;background:var(--primary-soft);border-bottom:1px solid var(--line)}
.page-banner .container-x{position:relative;z-index:2;padding-top:26px;padding-bottom:44px}
.banner-ring{
  position:absolute;right:-50px;top:-70px;width:220px;height:220px;border-radius:50%;
  border:1px solid rgba(110,59,255,.35);pointer-events:none;
}
.banner-ring::after{
  content:'';position:absolute;inset:34px;border-radius:50%;
  border:1px dashed rgba(110,59,255,.28);
}
.crumbs{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--muted)}
.crumbs a{color:var(--muted);transition:color .2s var(--ease)}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{color:#C9C3BA}
.crumbs .cur{color:var(--ink-2)}
.badge{
  display:inline-flex;align-items:center;gap:6px;margin-top:20px;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(110,59,255,.12);color:var(--primary-deep);
}
.page-banner h1{
  margin-top:16px;max-width:860px;
  font-size:clamp(30px,4.4vw,52px);line-height:1.15;font-weight:800;letter-spacing:-.02em;
}
.page-banner .lead{margin-top:14px;max-width:660px;font-size:16px;color:var(--ink-2)}
.banner-stats{display:flex;flex-wrap:wrap;gap:32px;margin-top:30px}
.banner-stats .num{font-family:var(--font-mono);font-size:26px;font-weight:700;line-height:1}
.banner-stats .lbl{margin-top:6px;font-size:12px;color:var(--muted)}

/* ============ 板块 ============ */
.section{padding-top:56px;padding-bottom:56px}
@media(min-width:768px){.section{padding-top:72px;padding-bottom:72px}}
@media(min-width:1024px){.section{padding-top:96px;padding-bottom:96px}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.2;font-weight:700;letter-spacing:-.01em}
.section-head .sub{margin-top:10px;font-size:15px;color:var(--muted);max-width:620px}

/* ============ 双栏目录 + 步骤 ============ */
.doc-layout{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:1024px){.doc-layout{grid-template-columns:220px minmax(0,1fr);gap:52px}}
.side-toc{display:none}
@media(min-width:1024px){
  .side-toc{display:block;position:sticky;top:140px;align-self:start;padding-left:16px;border-left:1px solid var(--line)}
}
.toc-title{margin-bottom:12px;font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--muted)}
.toc-link{
  display:block;margin-left:-17px;padding:7px 0 7px 15px;
  border-left:2px solid transparent;font-size:14px;line-height:1.6;color:var(--ink-2);
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.toc-link .idx{font-family:var(--font-mono);font-size:12px;color:var(--muted);margin-right:6px}
.toc-link:hover{color:var(--primary)}
.toc-link.is-current{color:var(--primary);border-left-color:var(--primary);font-weight:600}
.toc-link.is-current .idx{color:var(--primary)}

.timeline{position:relative}
.tl-item{position:relative;padding-left:60px;padding-bottom:38px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:'';position:absolute;left:19px;top:46px;bottom:10px;width:1px;background:var(--line)}
.tl-item:last-child::before{display:none}
.tl-num{
  position:absolute;left:0;top:0;width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-size:13px;font-weight:700;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.tl-item:hover .tl-num{background:var(--primary);border-color:var(--primary);color:#fff}
.tl-title{font-size:18px;line-height:1.5;font-weight:600}
.tl-text{margin-top:10px;max-width:680px;font-size:15px;line-height:1.9;color:var(--ink-2)}
.tl-meta{margin-top:10px;font-size:13px;color:var(--muted)}
.tl-figure{margin-top:16px;max-width:560px;border-radius:12px;overflow:hidden;border:1px solid var(--line);background:linear-gradient(135deg,var(--primary-soft),var(--bg))}
.tl-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .32s var(--ease)}
.tl-figure:hover img{transform:scale(1.03)}
@media(max-width:520px){
  .tl-item{padding-left:48px}
  .tl-item::before{left:15px}
  .tl-num{width:32px;height:32px;font-size:12px}
  .tl-item::before{top:38px}
}

/* ============ 折叠面板（分组） ============ */
.acc-group{margin-top:8px}
.acc-group-title{display:flex;align-items:center;gap:10px;margin-top:30px;font-size:15px;font-weight:700}
.acc-group-title .tag{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary-deep);font-size:11px;font-weight:700;letter-spacing:.04em;
}
.acc-item{border-top:1px solid var(--line)}
.acc-item:last-child{border-bottom:1px solid var(--line)}
.acc-trigger{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 0;min-height:56px;text-align:left;cursor:pointer;font-size:16px;font-weight:600;
  transition:color .2s var(--ease);
}
.acc-trigger:hover{color:var(--primary)}
.acc-trigger:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.acc-icon{position:relative;flex:0 0 auto;width:16px;height:16px}
.acc-icon::before,.acc-icon::after{content:'';position:absolute;background:var(--primary);transition:transform .2s var(--ease),opacity .2s var(--ease)}
.acc-icon::before{left:0;top:7px;width:16px;height:2px}
.acc-icon::after{left:7px;top:0;width:2px;height:16px}
.acc-item.is-open .acc-icon::after{transform:rotate(90deg);opacity:0}
.acc-panel{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.acc-panel-inner{
  padding:2px 0 18px 14px;border-left:2px solid var(--primary);
  font-size:15px;line-height:1.85;color:var(--ink-2);max-width:720px;
}

/* ============ 状态条 ============ */
.status-band{
  display:grid;grid-template-columns:1fr;gap:18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-1);
}
@media(min-width:640px){.status-band{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.status-band{grid-template-columns:repeat(4,1fr);padding:26px}}
.status-item{display:flex;flex-direction:column;gap:6px}
.status-item .top{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--accent)}
.dot.warm{background:var(--pop)}
.status-item .val{font-family:var(--font-mono);font-size:22px;font-weight:700;line-height:1.2}
.status-item .note{font-size:13px;color:var(--muted)}

/* ============ 相关说明列表 ============ */
.mini-list{border-top:1px solid var(--line)}
.mini-item{
  display:flex;align-items:center;gap:16px;min-height:64px;padding:16px 12px;
  border-bottom:1px solid var(--line);
  transition:background-color .2s var(--ease);
}
.mini-item:hover{background:rgba(110,59,255,.08)}
.mini-item .txt{flex:1 1 auto;min-width:0}
.mini-item h3{font-size:16px;font-weight:600;line-height:1.6}
.mini-item .desc{margin-top:4px;font-size:13px;color:var(--muted)}
.mini-item time{font-family:var(--font-mono);font-size:13px;color:var(--muted);flex:0 0 auto}
.mini-item .chev{flex:0 0 auto;color:var(--primary);transition:transform .2s var(--ease)}
.mini-item:hover .chev{transform:translateX(2px)}
@media(max-width:520px){
  .mini-item{flex-wrap:wrap;gap:6px}
  .mini-item time{order:3}
}

/* ============ CTA 条 ============ */
.cta-band{
  display:flex;flex-direction:column;gap:18px;
  background:#fff;border:1px solid var(--primary);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);
}
@media(min-width:768px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:34px 38px}
}
.cta-band h2{font-size:clamp(22px,2.4vw,28px);line-height:1.3;font-weight:700}
.cta-band p{margin-top:8px;font-size:15px;color:var(--muted)}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#fff;padding:56px 0 28px;margin-top:56px}
@media(min-width:1024px){.site-footer{margin-top:96px}}
.footer-logo-text{font-size:16px;font-weight:800;letter-spacing:-.01em;color:#fff}
.f-title{margin-bottom:14px;font-size:14px;font-weight:700;color:#fff}
.f-list{display:flex;flex-direction:column;gap:10px;font-size:14px}
.f-list li{line-height:1.7}
.f-list a{color:#A8A8B3;transition:color .2s var(--ease)}
.f-list a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.f-divider{border-top:1px solid rgba(255,255,255,.10)}
.site-footer a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:30;
  width:48px;height:48px;border-radius:50%;
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh-1);
  display:flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;cursor:pointer;
  transition:opacity .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.to-top.is-show{opacity:1;pointer-events:auto}
.to-top:hover{border-color:var(--primary);transform:translateY(-3px)}
.to-top:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

/* ============ 进入视口 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
}
@media print{
  .site-head,.drawer,.to-top{display:none !important}
  body{background:#fff}
}