/* roulang page: index */
:root{
    --lime:#C9F24D; --lime-deep:#B9E23A; --lime-soft:#EFF8D9;
    --ink:#0E1012; --ink-2:#3A3F45; --ink-3:#7B828A;
    --paper:#F7F7F4; --card:#FFFFFF; --line:#E4E4DF; --flame:#FF5B2E;
    --r-card:16px; --r-video:24px;
    --shadow:0 1px 2px rgba(14,16,18,.04), 0 12px 32px -12px rgba(14,16,18,.12);
    --shadow-hover:0 18px 44px -14px rgba(14,16,18,.18);
    --ease:cubic-bezier(.2,.7,.2,1);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;background:var(--paper);color:var(--ink);
    font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%}
  a{color:inherit;text-decoration:none}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
  input{font:inherit}
  h1,h2,h3,h4,p{margin:0}
  ul,ol{margin:0;padding:0;list-style:none}
  :focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:999px}
  ::selection{background:var(--lime);color:var(--ink)}

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

  .h1{font-size:clamp(2.1rem,5vw,4rem);font-weight:800;line-height:1.05;letter-spacing:-.03em}
  .h2{font-size:clamp(1.6rem,2.6vw,2.4rem);font-weight:700;letter-spacing:-.02em;line-height:1.2}
  .h3{font-size:1.08rem;font-weight:600;letter-spacing:-.01em}
  .meta{font-size:12px;letter-spacing:.02em;color:var(--ink-3)}

  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 26px;
    border-radius:999px;font-size:15px;font-weight:600;letter-spacing:0;white-space:nowrap;
    transition:all .22s var(--ease)}
  .btn-primary{background:var(--lime);color:var(--ink)}
  .btn-primary:hover{background:var(--lime-deep);transform:translateY(-2px);box-shadow:0 14px 26px -12px rgba(14,16,18,.4)}
  .btn-primary:active{transform:translateY(1px)}
  .btn-outline{border:1px solid var(--ink);color:var(--ink);background:transparent}
  .btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
  .btn-outline:active{transform:translateY(1px)}
  .btn-ghost{border:1px solid rgba(255,255,255,.45);color:#fff;background:transparent}
  .btn-ghost:hover{background:#fff;color:var(--ink);transform:translateY(-2px)}
  .btn-sm{height:36px;padding:0 18px;font-size:14px}

  .nav-pill{display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
    font-size:14px;color:var(--ink);white-space:nowrap;transition:background .2s var(--ease),color .2s var(--ease)}
  .nav-pill:hover{background:var(--lime-soft)}
  .nav-pill.active{background:var(--lime);font-weight:600}

  .icon-btn{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:999px;
    border:1px solid var(--line);background:#fff;color:var(--ink);transition:all .2s var(--ease)}
  .icon-btn:hover{border-color:var(--lime);color:var(--ink);transform:translateY(-2px)}

  .badge{display:inline-flex;align-items:center;gap:6px;height:25px;padding:0 12px;border-radius:999px;
    font-size:12px;letter-spacing:.02em;background:var(--lime-soft);color:var(--ink)}
  .badge-dark{background:rgba(14,16,18,.62);color:#fff;backdrop-filter:blur(2px)}
  .badge-flame{border:1px solid rgba(255,91,46,.45);background:rgba(255,91,46,.12);color:var(--flame)}

  .link-underline{position:relative;display:inline-block;font-size:14px;font-weight:600;color:var(--ink)}
  .link-underline::after{content:"";position:absolute;left:0;bottom:-3px;width:100%;height:2px;background:var(--lime);
    transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease)}
  .link-underline:hover::after{transform:scaleX(1)}

  .card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow);
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
  .card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}

  .play-btn{width:56px;height:56px;border-radius:999px;background:rgba(255,255,255,.92);color:var(--ink);
    display:inline-flex;align-items:center;justify-content:center;transition:all .22s var(--ease)}
  .play-btn:hover{background:var(--lime);transform:scale(1.06)}
  .play-btn-sm{width:48px;height:48px;font-size:14px}

  .num{font-size:clamp(1.5rem,2.8vw,2.3rem);font-weight:800;line-height:1;color:#D8D8D2;
    min-width:2.6rem;transition:color .22s var(--ease)}
  .pick-row:hover .num{color:var(--lime-deep)}

  .pill-follow{display:inline-flex;align-items:center;height:32px;padding:0 16px;border-radius:999px;
    border:1px solid var(--line);font-size:13px;font-weight:600;white-space:nowrap;transition:all .2s var(--ease)}
  .pick-row:hover .pill-follow{border-color:var(--lime);background:var(--lime)}
  .pick-row:hover{background:#F0F7DC}

  .clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

  .faq-item{position:relative;padding-left:16px}
  .faq-item::before{content:"";position:absolute;left:0;top:24px;width:3px;height:0;background:var(--lime);
    border-radius:2px;transition:height .22s var(--ease)}
  .faq-item.open::before{height:22px}
  .faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:22px 0;text-align:left;font-size:17px;font-weight:600;color:var(--ink)}
  .faq-chev{color:var(--ink-3);transition:transform .2s var(--ease);flex-shrink:0}
  .faq-item.open .faq-chev{transform:rotate(180deg);color:var(--ink)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
  .faq-item.open .faq-a{max-height:420px}
  .faq-a p{font-size:15px;line-height:1.9;color:var(--ink-2);padding-bottom:22px}

  .grid-texture{
    background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
      linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
    background-size:48px 48px;
  }

  .reveal{opacity:0;transform:translateY(16px);
    transition:opacity .5s var(--ease),transform .5s var(--ease)}
  .reveal.is-in{opacity:1;transform:none}

  @media (prefers-reduced-motion: reduce){
    html{scroll-behavior:auto}
    .reveal{opacity:1;transform:none;transition:none}
    *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  }

  @media (max-width:640px){
    .btn{height:44px;padding:0 22px;font-size:15px}
    .faq-q{font-size:16px;padding:18px 0}
  }

/* roulang page: article */
:root{
    --brand:#C9F24D;
    --brand-dark:#B9E23A;
    --brand-light:#EFF8D9;
    --accent:#FF5B2E;
    --ink:#0E1012;
    --ink-2:#3A3F45;
    --ink-3:#7B828A;
    --paper:#F7F7F4;
    --card:#FFFFFF;
    --line:#E4E4DF;
    --radius:16px;
    --radius-lg:24px;
    --shadow:0 1px 2px rgba(14,16,18,.04), 0 12px 32px -12px rgba(14,16,18,.12);
    --shadow-hover:0 18px 44px -14px rgba(14,16,18,.18);
    --ease:cubic-bezier(.2,.7,.2,1);
  }

  *{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
  input{font:inherit}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4,p{margin:0}
  ::selection{background:var(--brand);color:var(--ink)}
  :focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:6px}

  .scroll-hide{scrollbar-width:none;-ms-overflow-style:none}
  .scroll-hide::-webkit-scrollbar{display:none}
  .clamp2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .clamp1{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
    height:46px;padding:0 26px;border-radius:999px;
    font-size:15px;font-weight:600;letter-spacing:0;white-space:nowrap;
    transition:background-color .22s var(--ease), color .22s var(--ease), transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
  }
  .btn-primary{background:var(--brand);color:var(--ink)}
  .btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 14px 28px -14px rgba(14,16,18,.4)}
  .btn-primary:active{transform:translateY(0)}
  .btn-outline{border:1px solid var(--ink);color:var(--ink);background:transparent}
  .btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
  .btn-outline:active{transform:translateY(0)}
  .btn-ghost{border:1px solid rgba(255,255,255,.38);color:#fff;background:transparent}
  .btn-ghost:hover{background:#fff;color:var(--ink);transform:translateY(-2px)}
  .btn-sm{height:38px;padding:0 18px;font-size:13px}

  .icon-btn{
    width:44px;height:44px;border-radius:999px;background:#fff;
    border:1px solid var(--line);color:var(--ink);
    display:inline-flex;align-items:center;justify-content:center;
    transition:all .22s var(--ease);
  }
  .icon-btn:hover{border-color:var(--brand);background:var(--brand-light);transform:translateY(-2px)}
  .icon-btn-sm{width:38px;height:38px}

  /* ---------- 导航 ---------- */
  .nav-pill{
    display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
    font-size:14px;font-weight:600;color:var(--ink);white-space:nowrap;
    transition:background-color .2s var(--ease), color .2s var(--ease);
  }
  .nav-pill:hover{background:var(--brand-light)}
  .nav-pill.active{background:var(--brand);color:var(--ink)}

  /* ---------- 标签 / 徽章 ---------- */
  .badge{
    display:inline-flex;align-items:center;gap:.35rem;height:26px;padding:0 12px;border-radius:999px;
    background:var(--brand-light);color:var(--ink);font-size:12px;font-weight:600;letter-spacing:.02em;
  }
  .badge-hot{background:#fff;border:1px solid rgba(255,91,46,.5);color:var(--accent)}
  .badge-dark{background:var(--ink);color:#fff}
  .tag-pill{
    display:inline-flex;align-items:center;height:32px;padding:0 16px;border-radius:999px;
    border:1px solid var(--line);background:#fff;font-size:13px;color:var(--ink-2);
    transition:all .2s var(--ease);
  }
  .tag-pill:hover{background:var(--brand);border-color:var(--brand);color:var(--ink)}
  .meta{font-size:12.5px;letter-spacing:.02em;color:var(--ink-3)}

  /* ---------- 卡片 ---------- */
  .card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
    box-shadow:var(--shadow);
    transition:transform .24s var(--ease), box-shadow .24s var(--ease), border-color .24s var(--ease);
  }
  .lift:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand)}

  /* ---------- 分隔与信息条 ---------- */
  .stat-strip{
    display:flex;flex-wrap:wrap;align-items:center;gap:0;
    border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow:hidden;
  }
  .stat-strip > div{flex:1 1 160px;padding:16px 20px;border-right:1px solid var(--line)}
  .stat-strip > div:last-child{border-right:0}
  .stat-num{font-size:20px;font-weight:800;letter-spacing:-.02em;color:var(--ink)}
  .stat-label{font-size:12px;color:var(--ink-3);letter-spacing:.02em;margin-top:2px}

  /* ---------- 正文排版 ---------- */
  .article-body{
    max-width:760px;margin:0 auto;
    font-size:16.5px;line-height:1.95;color:var(--ink-2);
    word-break:break-word;
  }
  .article-body p{margin:0 0 1.2em}
  .article-body h2{
    position:relative;margin:2em 0 .8em;padding-left:16px;
    font-size:clamp(1.3rem,2.2vw,1.6rem);font-weight:700;line-height:1.4;
    color:var(--ink);letter-spacing:-.02em;
  }
  .article-body h2::before{
    content:"";position:absolute;left:0;top:.32em;width:3px;height:18px;
    background:var(--brand);border-radius:2px;
  }
  .article-body h3{margin:1.7em 0 .6em;font-size:1.08rem;font-weight:600;color:var(--ink);line-height:1.5}
  .article-body h4{margin:1.4em 0 .5em;font-size:1rem;font-weight:600;color:var(--ink)}
  .article-body ul{margin:0 0 1.3em;padding-left:1.35em;list-style:disc}
  .article-body ol{margin:0 0 1.3em;padding-left:1.45em;list-style:decimal}
  .article-body li{margin:.45em 0;line-height:1.9}
  .article-body ul li::marker{color:var(--brand-dark)}
  .article-body ol li::marker{color:var(--ink);font-weight:700}
  .article-body blockquote{
    margin:1.7em 0;padding:20px 22px;background:#F2F6E8;
    border-left:3px solid var(--brand);border-radius:0 12px 12px 0;color:var(--ink-2);
  }
  .article-body blockquote p:last-child{margin-bottom:0}
  .article-body img{border-radius:12px;margin:1.6em auto}
  .article-body figure{margin:1.6em 0}
  .article-body figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--ink-3)}
  .article-body strong{color:var(--ink);font-weight:600}
  .article-body a{color:var(--ink);border-bottom:1px solid var(--brand);transition:background-color .2s var(--ease),color .2s var(--ease)}
  .article-body a:hover{background:var(--brand-light);color:var(--ink)}
  .article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}
  .article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:14.5px}
  .article-body th{background:var(--ink);color:#fff;text-align:left;padding:12px 14px;font-weight:600}
  .article-body td{padding:12px 14px;border-bottom:1px solid var(--line);color:var(--ink-2)}
  .article-body code{background:#F2F6E8;border-radius:6px;padding:2px 6px;font-size:14px;color:var(--ink)}

  /* ---------- 分页/空态 ---------- */
  .empty-block{
    border:1px dashed var(--line);border-radius:var(--radius);background:#fff;
    padding:64px 24px;text-align:center;
  }

  /* ---------- 入视口动效 ---------- */
  .reveal{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
  .reveal.is-in{opacity:1;transform:none}
  .reveal.d1{transition-delay:.06s}
  .reveal.d2{transition-delay:.12s}
  .reveal.d3{transition-delay:.18s}

  /* ---------- 悬浮回到顶部 ---------- */
  .to-top{
    position:fixed;right:20px;bottom:24px;z-index:60;
    width:46px;height:46px;border-radius:999px;background:var(--ink);color:#fff;
    display:inline-flex;align-items:center;justify-content:center;
    box-shadow:0 14px 30px -12px rgba(14,16,18,.5);
    opacity:0;visibility:hidden;transform:translateY(10px);
    transition:all .24s var(--ease);
  }
  .to-top.show{opacity:1;visibility:visible;transform:none}
  .to-top:hover{background:var(--brand);color:var(--ink)}

  @media (max-width:768px){
    .stat-strip > div{flex:1 1 50%;border-right:0;border-bottom:1px solid var(--line)}
    .article-body{font-size:16px}
    .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  }
  @media (max-width:520px){
    .stat-strip > div{flex:1 1 100%}
  }

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

/* roulang page: category1 */
:root{
  --brand:#C9F24D; --brand-dark:#B9E23A; --accent:#FF5B2E;
  --ink:#0E1012; --ink2:#3A3F45; --ink3:#7B828A;
  --paper:#F7F7F4; --card:#FFFFFF; --line:#E4E4DF; --soft:#EFF8D9;
  --radius:16px; --radius-lg:24px;
  --shadow:0 1px 2px rgba(14,16,18,.04),0 12px 32px -12px rgba(14,16,18,.12);
  --shadow-hover:0 18px 44px -14px rgba(14,16,18,.18);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0; background:var(--paper); color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px; line-height:1.85; -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
::selection{background:var(--brand);color:var(--ink);}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:6px;}

.container-site{max-width:1240px;margin:0 auto;padding:0 16px;}
@media (min-width:768px){.container-site{padding:0 32px;}}

h1,h2,h3{margin:0;letter-spacing:-.02em;}
.h1{font-size:clamp(2.2rem,4.6vw,3.7rem);font-weight:800;line-height:1.06;letter-spacing:-.03em;}
.h2{font-size:clamp(1.55rem,2.6vw,2.3rem);font-weight:700;line-height:1.2;letter-spacing:-.02em;}
.h3{font-size:1.1rem;font-weight:600;line-height:1.45;}
.lead{font-size:16px;line-height:1.9;color:var(--ink2);}
.meta{font-size:12.5px;letter-spacing:.02em;color:var(--ink3);}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:600;
  white-space:nowrap;transition:all .22s var(--ease);border:1px solid transparent;}
.btn-primary{background:var(--brand);color:var(--ink);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-outline:hover{background:var(--ink);color:#fff;}
.btn-outline:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.45);color:#fff;}
.btn-ghost:hover{background:#fff;color:var(--ink);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.icon-btn{width:44px;height:44px;border-radius:999px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;background:#fff;
  transition:all .22s var(--ease);}
.icon-btn:hover{border-color:var(--brand);background:var(--soft);}
.icon-btn:active{transform:scale(.96);}

/* 导航 */
.nav-pill{display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  font-size:14px;font-weight:600;color:var(--ink);white-space:nowrap;transition:all .22s var(--ease);}
.nav-pill:hover{background:var(--soft);}
.nav-pill.active{background:var(--brand);}
.scroll-hide{-ms-overflow-style:none;scrollbar-width:none;}
.scroll-hide::-webkit-scrollbar{display:none;}

/* 徽章 / 标签 */
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--soft);color:var(--ink);font-size:12px;font-weight:600;letter-spacing:.02em;}
.badge-hot{background:#fff;border:1px solid var(--accent);color:var(--accent);}
.badge-hot::before{content:"";width:6px;height:6px;border-radius:999px;background:var(--accent);margin-right:6px;}

/* 筛选项 */
.filter-pill{display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);background:#fff;font-size:14px;font-weight:600;color:var(--ink2);
  transition:all .22s var(--ease);}
.filter-pill:hover{border-color:var(--ink);color:var(--ink);}
.filter-pill.is-active{background:var(--ink);border-color:var(--ink);color:#fff;}

/* 卡片 */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand);}

/* 统计 */
.stat-num{font-size:clamp(1.6rem,2.6vw,2.1rem);font-weight:800;line-height:1;letter-spacing:-.03em;}
.stat-label{font-size:12.5px;color:var(--ink3);margin-top:6px;letter-spacing:.02em;}

/* 列表行 */
.list-row{display:flex;align-items:center;gap:18px;padding:18px 10px;border-bottom:1px solid var(--line);
  transition:background .22s var(--ease);}
.list-row:last-child{border-bottom:0;}
.list-row:hover{background:#F3F9E2;}
.row-num{font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--ink3);
  min-width:34px;transition:color .22s var(--ease);}
.list-row:hover .row-num{color:var(--brand-dark);}
.row-thumb{width:96px;height:64px;border-radius:12px;object-fit:cover;flex:0 0 auto;
  transition:transform .22s var(--ease);}
.list-row:hover .row-thumb{transform:scale(1.04);}
.row-btn{border:1px solid var(--line);border-radius:999px;height:34px;padding:0 16px;
  font-size:13.5px;font-weight:600;display:inline-flex;align-items:center;
  transition:all .22s var(--ease);white-space:nowrap;}
.list-row:hover .row-btn{background:var(--ink);border-color:var(--ink);color:#fff;}
.row-desc{font-size:14.5px;color:var(--ink2);line-height:1.6;}
@media (max-width:767px){
  .row-desc{display:none;}
  .row-thumb{width:80px;height:56px;}
  .row-num{font-size:16px;min-width:24px;}
}

/* 排行 */
.rank-item{position:relative;padding-left:44px;}
.rank-no{position:absolute;left:0;top:2px;font-size:22px;font-weight:800;letter-spacing:-.03em;
  color:var(--ink);line-height:1;}
.rank-no.top{color:var(--accent);}

/* 标签云 */
.tag-pill{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line);background:#fff;font-size:13px;color:var(--ink2);
  transition:all .22s var(--ease);}
.tag-pill:hover{background:var(--brand);border-color:var(--brand);color:var(--ink);}

/* FAQ */
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;font-size:17px;font-weight:600;text-align:left;color:var(--ink);transition:color .2s var(--ease);}
.faq-q:hover{color:var(--brand-dark);}
.faq-q .chev{transition:transform .2s var(--ease);color:var(--ink3);font-size:14px;}
.faq-item[open] .faq-q .chev{transform:rotate(180deg);}
.faq-item[open] .faq-q{border-left:3px solid var(--brand);padding-left:16px;}
.faq-a{padding:0 0 22px 16px;font-size:15px;line-height:1.9;color:var(--ink2);}
summary::-webkit-details-marker{display:none;}
summary{list-style:none;cursor:pointer;}

/* 分页 */
.page-btn{display:inline-flex;align-items:center;justify-content:center;min-width:42px;height:42px;
  padding:0 14px;border-radius:999px;border:1px solid var(--line);background:#fff;
  font-size:14px;font-weight:600;color:var(--ink2);transition:all .22s var(--ease);}
.page-btn:hover{border-color:var(--ink);color:var(--ink);}
.page-btn.is-current{background:var(--brand);border-color:var(--brand);color:var(--ink);}
.page-btn.is-disabled{opacity:.45;pointer-events:none;}

/* 图片框 */
.media{overflow:hidden;border-radius:var(--radius);position:relative;}
.media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.media:hover img{transform:scale(1.04);}

/* 动效 */
.reveal{opacity:0;transform:translateY(16px);
  transition:opacity .55s var(--ease),transform .55s var(--ease);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  .card:hover,.list-row:hover .row-thumb{transform:none;}
  *{transition-duration:.01ms !important;}
}

/* roulang page: category2 */
:root{
    --brand:#C9F24D;--brand-dark:#B9E23A;--brand-soft:#EFF8D9;--flame:#FF5B2E;
    --ink:#0E1012;--ink2:#3A3F45;--ink3:#7B828A;
    --paper:#F7F7F4;--card:#FFFFFF;--line:#E4E4DF;
    --r-card:16px;--r-lg:24px;
    --sh:0 1px 2px rgba(14,16,18,.04), 0 12px 32px -12px rgba(14,16,18,.12);
    --sh-hover:0 18px 44px -14px rgba(14,16,18,.18);
    --ease:cubic-bezier(.2,.7,.2,1);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;background:var(--paper);color:var(--ink);
    font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%}
  a{color:inherit;text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease)}
  button,input{font:inherit;color:inherit}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4{margin:0;letter-spacing:-.02em}
  p{margin:0}
  :focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:8px}

  /* 按钮 */
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 26px;
    border-radius:999px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
    transition:all .22s var(--ease);white-space:nowrap}
  .btn-primary{background:var(--brand);color:var(--ink)}
  .btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:var(--sh-hover)}
  .btn-primary:active{transform:translateY(0)}
  .btn-outline{background:transparent;border-color:var(--ink);color:var(--ink)}
  .btn-outline:hover{background:var(--ink);color:#F7F7F4;transform:translateY(-2px)}
  .btn-ghost{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
  .btn-ghost:hover{background:#fff;color:var(--ink);transform:translateY(-2px)}
  .btn-sm{height:40px;padding:0 18px;font-size:14px}

  /* 导航 */
  .nav-pill{display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
    font-size:14px;font-weight:500;white-space:nowrap;color:var(--ink);transition:all .2s var(--ease)}
  .nav-pill:hover{background:var(--brand-soft)}
  .nav-pill.active{background:var(--brand);font-weight:700}
  .icon-btn{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:999px;
    border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer;transition:all .22s var(--ease)}
  .icon-btn:hover{border-color:var(--ink);transform:translateY(-2px)}
  .scroll-hide{-ms-overflow-style:none;scrollbar-width:none}
  .scroll-hide::-webkit-scrollbar{display:none}

  /* 组件 */
  .card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--sh);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
  .card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
  .tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
    background:var(--brand-soft);color:var(--ink);font-size:12px;font-weight:600;letter-spacing:.02em}
  .tag-flame{border:1px solid var(--flame);background:#fff;color:var(--flame)}
  .meta{font-size:12px;letter-spacing:.02em;color:var(--ink3)}
  .hero-h1{font-size:clamp(2rem,4.6vw,3.5rem);font-weight:800;line-height:1.08;letter-spacing:-.03em}
  .sec-h2{font-size:clamp(1.5rem,2.5vw,2.2rem);font-weight:700;line-height:1.2}
  .hl{position:relative;display:inline-block}
  .hl::after{content:"";position:absolute;left:0;right:0;bottom:.06em;height:.34em;background:var(--brand);z-index:-1;opacity:.85}
  .lead-line{width:56px;height:3px;background:var(--brand);border-radius:999px}

  /* 大图卡片 */
  .grid-card{border-radius:20px}
  .grid-card img{transition:transform .5s var(--ease)}
  .grid-card:hover img{transform:scale(1.04)}
  .grid-card:hover{border-color:var(--brand);box-shadow:var(--sh-hover)}
  .grid-card:hover .grid-title{text-decoration:underline;text-decoration-color:var(--brand);
    text-decoration-thickness:2px;text-underline-offset:4px}

  /* 深色面板 */
  .dark-panel{background:var(--ink);color:#F7F7F4;border-radius:var(--r-lg);border:1px solid rgba(255,255,255,.08)}
  .dark-panel .num{font-size:clamp(1.6rem,3vw,2.4rem);font-weight:800;color:var(--brand);line-height:1;letter-spacing:-.03em}

  /* 口碑卡 */
  .quote-card{width:300px;flex:0 0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
    padding:20px;box-shadow:var(--sh);transition:transform .22s var(--ease),box-shadow .22s var(--ease)}
  .quote-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
  .avatar{width:30px;height:30px;border-radius:999px;background:var(--ink);color:var(--brand);
    display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}
  .stars{color:var(--brand);font-size:12px;letter-spacing:2px}

  /* FAQ */
  .faq-wrap{max-width:860px;margin:0 auto}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:12px;
    padding:22px 0;font-size:17px;font-weight:600;transition:color .2s var(--ease)}
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary:hover{color:var(--ink2)}
  .faq-bar{width:3px;height:18px;border-radius:2px;background:var(--brand);opacity:0;transition:opacity .2s var(--ease)}
  .faq-item[open] .faq-bar{opacity:1}
  .chev{margin-left:auto;color:var(--ink3);transition:transform .2s var(--ease)}
  .faq-item[open] .chev{transform:rotate(180deg)}
  .faq-answer{padding:0 0 22px 15px;font-size:15px;line-height:1.9;color:var(--ink2)}

  /* 动效 */
  .reveal{opacity:0;transform:translateY(16px);
    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}
    .reveal{opacity:1;transform:none;transition:none}
    *{animation:none !important;transition:none !important}
  }
  @media (max-width:768px){
    .quote-card{width:78vw}
  }

/* roulang page: category3 */
:root{
  --brand:#C9F24D; --brand-dark:#B9E23A; --accent:#FF5B2E;
  --ink:#0E1012; --ink2:#3A3F45; --ink3:#7B828A;
  --paper:#F7F7F4; --card:#FFFFFF; --line:#E4E4DF; --limewash:#EFF8D9;
  --radius:16px; --radius-lg:24px;
  --shadow:0 1px 2px rgba(14,16,18,.04), 0 12px 32px -12px rgba(14,16,18,.12);
  --shadow-lg:0 18px 44px -14px rgba(14,16,18,.18);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
::selection{background:var(--brand);color:var(--ink)}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:6px}

.container-x{width:100%;max-width:1240px;margin:0 auto;padding-left:16px;padding-right:16px}
@media (min-width:768px){.container-x{padding-left:32px;padding-right:32px}}

.h1{font-size:clamp(2.1rem,4.6vw,3.5rem);font-weight:800;line-height:1.05;letter-spacing:-.03em}
.h2{font-size:clamp(1.6rem,2.6vw,2.2rem);font-weight:700;line-height:1.2;letter-spacing:-.02em}
.h3{font-size:1.15rem;font-weight:600;line-height:1.4;letter-spacing:-.01em}
.eyebrow{font-size:12px;font-weight:600;letter-spacing:.14em;color:var(--ink3);text-transform:uppercase}

/* 导航 */
.nav-pill{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  font-size:14px;font-weight:600;color:var(--ink2);white-space:nowrap;
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.nav-pill:hover{background:var(--limewash);color:var(--ink)}
.nav-pill.active{background:var(--brand);color:var(--ink)}
.scroll-hide{scrollbar-width:none;-ms-overflow-style:none}
.scroll-hide::-webkit-scrollbar{display:none;height:0;width:0}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:600;letter-spacing:-.01em;transition:all .22s var(--ease);white-space:nowrap}
.btn-primary{background:var(--brand);color:var(--ink);box-shadow:0 1px 2px rgba(14,16,18,.04)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border:1px solid rgba(255,255,255,.5);color:#fff;background:transparent}
.btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff;transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink2);transition:all .2s var(--ease)}
.icon-btn:hover{border-color:var(--ink);color:var(--ink);background:var(--limewash)}

/* 徽章 */
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--limewash);color:var(--ink);font-size:12px;font-weight:600;letter-spacing:.02em}
.badge-dark{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:rgba(201,242,77,.9);color:var(--ink);font-size:11px;font-weight:700;letter-spacing:.04em}
.badge-line{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink2);font-size:12px;font-weight:600}
.badge-line .dot{width:6px;height:6px;border-radius:999px;background:var(--accent)}

/* 链接下划线 */
.link-underline{position:relative;color:var(--ink);font-weight:600;transition:color .2s var(--ease)}
.link-underline::after{content:"";position:absolute;left:0;bottom:-3px;width:100%;height:1px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease)}
.link-underline:hover::after{transform:scaleX(1)}

/* 拼贴块 */
.tile{position:relative;display:block;overflow:hidden;border-radius:var(--radius);border:1px solid var(--line);background:var(--card);min-height:100%;transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease)}
.tile-lg{border-radius:var(--radius-lg)}
.tile:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand)}
.tile img{transition:transform .5s var(--ease)}
.tile:hover img{transform:scale(1.04)}
.tile-index{font-size:clamp(1.8rem,2.6vw,2.5rem);font-weight:800;line-height:1;letter-spacing:-.03em;color:rgba(255,255,255,.9)}
@supports (-webkit-text-stroke:1px #fff){
  .tile-index{color:transparent;-webkit-text-stroke:1px rgba(255,255,255,.72)}
}

/* FAQ */
.faq-item{border-bottom:1px solid var(--line)}
.faq-panel{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s var(--ease)}
.faq-item.is-open .faq-panel{grid-template-rows:1fr}
.faq-panel>div{overflow:hidden}
.faq-bar{display:block;width:3px;height:18px;border-radius:2px;background:transparent;margin-top:5px;transition:background-color .2s var(--ease)}
.faq-item.is-open .faq-bar{background:var(--brand)}
.chev{transition:transform .24s var(--ease)}
.faq-item.is-open .chev{transform:rotate(180deg)}

/* 列表 */
.row-item{display:flex;gap:16px;align-items:flex-start;padding:18px 4px;border-bottom:1px solid var(--line);transition:background-color .2s var(--ease)}
.row-item:hover{background:#FAFBF3}
.row-num{font-size:13px;font-weight:800;color:var(--ink3);letter-spacing:.06em;min-width:28px;padding-top:2px}
.row-item:hover .row-num{color:var(--ink)}

/* 进入视口 */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* 卡片 */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);transition:transform .24s var(--ease),box-shadow .24s var(--ease)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}

.stat-num{font-size:clamp(1.4rem,2.4vw,2rem);font-weight:800;letter-spacing:-.03em;line-height:1}

.avatar{width:32px;height:32px;border-radius:999px;object-fit:cover;border:2px solid #fff;box-shadow:0 0 0 1px var(--line)}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1 !important;transform:none !important;transition:none !important}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
}