/* roulang page: index */
:root{
  --ink-900:#1C1522;
  --ink-700:#3B3143;
  --ink-500:#6B6076;
  --line:#E8E0D6;
  --paper:#FBF7F2;
  --surface:#FFFFFF;
  --primary:#F2552C;
  --primary-press:#D6431E;
  --primary-soft:#FFEDE6;
  --accent:#12876F;
  --accent-soft:#E4F5F0;
  --danger:#D0342C;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(28,21,34,.05);
  --sh-2:0 8px 20px rgba(28,21,34,.07);
  --sh-3:0 16px 40px rgba(28,21,34,.10);
  --maxw:1160px;
  --pad-x:40px;
  --font:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"DIN Alternate","Barlow",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-700);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
svg{display:block}
a{color:var(--ink-900);text-decoration:none}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button{font-family:inherit;font-size:inherit}
:focus-visible{outline:3px solid rgba(242,85,44,.35);outline-offset:2px;border-radius:6px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- 容器 ---------- */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding-left:var(--pad-x);padding-right:var(--pad-x)}

/* ---------- 左侧 App Shell ---------- */
.page{margin-left:244px;min-height:100vh;display:flex;flex-direction:column}
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:244px;z-index:60;
  background:var(--ink-900);
  padding:24px 16px 20px;
  display:flex;flex-direction:column;
  overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:10px;padding:2px 8px 22px;color:#fff}
.brand-mark{
  width:32px;height:32px;flex:none;border-radius:9px;
  background:var(--primary);color:#fff;
  font-weight:800;font-size:15px;line-height:1;
  display:grid;place-items:center;
  box-shadow:0 4px 12px rgba(242,85,44,.35);
}
.brand-text{font-size:17px;font-weight:800;line-height:1.25;color:#fff}
.nav{display:flex;flex-direction:column;gap:4px}
.nav-link{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:10px;
  color:rgba(255,255,255,.72);font-size:15px;font-weight:600;
  transition:background .18s ease,color .18s ease;
}
.nav-link svg{width:20px;height:20px;flex:none;stroke:currentColor;fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.nav-link:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-link:focus-visible{outline:3px solid rgba(242,85,44,.55);outline-offset:2px}
.nav-link.is-active{background:rgba(242,85,44,.18);color:#fff;font-weight:700}
.nav-link.is-active::before{
  content:"";position:absolute;left:0;top:11px;bottom:11px;width:3px;
  border-radius:2px;background:var(--primary);
}
.side-divider{height:1px;background:rgba(255,255,255,.1);margin:20px 8px}
.side-cta{width:100%;height:44px;padding:0 14px;font-size:15px;margin-top:2px}
.side-cta svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.side-note{
  margin-top:auto;padding:20px 10px 0;
  font-size:13px;line-height:1.7;color:rgba(255,255,255,.45);
}
.side-note strong{display:block;color:rgba(255,255,255,.72);font-weight:600;margin-bottom:2px}

/* ---------- 顶部移动栏 / 抽屉 ---------- */
.mobile-bar{display:none}
.drawer{display:none}
.overlay{display:none}
.mobile-bar{
  align-items:center;gap:12px;
  position:sticky;top:0;z-index:50;
  height:60px;padding:0 18px;
  background:#fff;border-bottom:1px solid var(--line);
}
.icon-btn{
  width:44px;height:44px;flex:none;display:grid;place-items:center;
  border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink-900);
  cursor:pointer;transition:background .18s ease,border-color .18s ease;
}
.icon-btn:hover{background:var(--primary-soft);border-color:rgba(242,85,44,.35)}
.icon-btn svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round}
.mobile-brand{display:flex;align-items:center;gap:8px;min-width:0}
.mobile-brand .brand-mark{width:28px;height:28px;font-size:13px;border-radius:8px}
.mobile-brand span{font-size:16px;font-weight:800;color:var(--ink-900);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mobile-bar .btn{margin-left:auto;flex:none}

/* ---------- 倒计时条 ---------- */
.topbar{
  position:sticky;top:0;z-index:30;
  background:var(--ink-900);
  border-top:2px solid var(--primary);
  color:#fff;
}
.topbar-inner{
  max-width:var(--maxw);margin:0 auto;
  padding:0 var(--pad-x);
  min-height:52px;display:flex;align-items:center;gap:20px;
}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0;flex:1 1 auto}
.topbar-label{
  flex:none;background:var(--primary);color:#fff;
  font-size:12px;font-weight:700;line-height:1;padding:5px 9px;border-radius:4px;
}
.topbar-name{font-size:14px;font-weight:600;color:rgba(255,255,255,.86);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-mid{flex:none;display:flex;align-items:center}
.cd{display:flex;align-items:center;gap:4px}
.cd-num{
  min-width:34px;height:30px;padding:0 6px;border-radius:6px;
  background:rgba(255,255,255,.12);color:#fff;
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:15px;font-weight:700;line-height:1;
  display:grid;place-items:center;
}
.cd-sep{font-size:12px;color:rgba(255,255,255,.5);padding:0 1px}
.topbar-right{flex:none;margin-left:auto}
.topbar-right .btn{height:34px;font-size:13px;padding:0 16px;border-radius:8px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:10px;border:1.5px solid transparent;
  font-size:15px;font-weight:700;line-height:1;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn-primary:hover{background:var(--primary-press);border-color:var(--primary-press);transform:translateY(-1px);box-shadow:0 6px 18px rgba(242,85,44,.28)}
.btn-primary:active{transform:none;box-shadow:none}
.btn-ghost{background:transparent;color:var(--ink-900);border-color:var(--ink-900)}
.btn-ghost:hover{background:var(--primary-soft);transform:translateY(-1px);box-shadow:0 6px 18px rgba(28,21,34,.08)}
.btn-ghost:active{transform:none;box-shadow:none}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 标签 / 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:var(--r-pill);
  background:var(--primary-soft);color:var(--primary-press);
  font-size:12px;font-weight:600;line-height:1.6;
}
.badge-accent{background:var(--accent-soft);color:var(--accent)}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:var(--r-pill);
  background:var(--surface);border:1px solid var(--line);
  font-size:13px;line-height:1.4;color:var(--ink-500);
}
.chip b{color:var(--ink-900);font-weight:700}

/* ---------- 通用区块 ---------- */
.section{padding:88px 0}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  flex-wrap:wrap;margin-bottom:24px;
}
.section-title{
  position:relative;padding-left:16px;
  font-size:clamp(22px,2.2vw,30px);font-weight:700;line-height:1.32;color:var(--ink-900);
}
.section-title::before{
  content:"";position:absolute;left:0;top:.18em;width:4px;height:.9em;
  background:var(--primary);border-radius:2px;
}
.section-index{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:13px;font-weight:700;color:var(--ink-500);margin-right:10px;
  vertical-align:.12em;
}
.section-link{
  font-size:14px;font-weight:700;color:var(--primary);
  text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;
  transition:color .18s ease;
}
.section-link:hover{color:var(--primary-press)}
.section-desc{font-size:15px;line-height:1.8;color:var(--ink-500);max-width:720px;margin-bottom:28px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:64px 0 76px}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(28,21,34,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(28,21,34,.055) 1px,transparent 1px);
  background-size:44px 44px;
  -webkit-mask-image:radial-gradient(circle at 26% 12%,#000,transparent 68%);
  mask-image:radial-gradient(circle at 26% 12%,#000,transparent 68%);
}
.hero .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--primary-press);
  background:var(--primary-soft);border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:18px;
}
.hero-eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary)}
.hero h1{
  font-size:clamp(28px,3.4vw,44px);font-weight:800;line-height:1.22;letter-spacing:0;
  color:var(--ink-900);
}
.hero-sub{
  margin-top:18px;font-size:16px;line-height:1.8;color:var(--ink-700);
  max-width:520px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-actions .btn{min-width:150px}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-lg);box-shadow:var(--sh-2);
}
.hero-tag{
  position:absolute;top:0;left:0;
  background:var(--primary);color:#fff;
  font-size:12px;font-weight:700;line-height:1.4;
  padding:6px 14px;border-radius:0 0 8px 0;
}
.hero-card{
  position:absolute;right:16px;bottom:16px;
  background:var(--surface);border-radius:var(--r-md);
  padding:12px 18px;box-shadow:var(--sh-2);min-width:150px;
}
.hero-card strong{display:block;font-size:12px;font-weight:600;color:var(--ink-500);line-height:1.6}
.hero-card span{
  display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:24px;font-weight:800;line-height:1.3;color:var(--ink-900);
}

/* ---------- 本期看点 ---------- */
.points{display:grid;grid-template-columns:repeat(2,1fr);gap:0 56px;border-top:1px dashed var(--line)}
.point{display:flex;gap:20px;padding:28px 0;border-bottom:1px dashed var(--line)}
.point-num{
  flex:none;font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:40px;font-weight:800;line-height:1;color:rgba(28,21,34,.12);
  transition:color .18s ease;
}
.point:hover .point-num{color:var(--primary)}
.point h3{font-size:18px;font-weight:700;line-height:1.45;color:var(--ink-900);margin-bottom:6px}
.point p{font-size:14px;line-height:1.7;color:var(--ink-500)}

/* ---------- 图墙 ---------- */
.wall{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
.wall-item{
  position:relative;display:block;overflow:hidden;border-radius:var(--r-md);
  background:var(--ink-900);
}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.wall-item:hover img{transform:scale(1.03)}
.wall-cap{
  position:absolute;left:0;right:0;bottom:0;
  padding:30px 14px 12px;
  background:linear-gradient(to top,rgba(28,21,34,.86),rgba(28,21,34,0));
  color:#fff;font-size:14px;font-weight:600;line-height:1.5;
}
.wall-item:nth-child(1){grid-column:span 6;aspect-ratio:16/9}
.wall-item:nth-child(2){grid-column:span 3;aspect-ratio:4/3}
.wall-item:nth-child(3){grid-column:span 3;aspect-ratio:4/3}
.wall-item:nth-child(4){grid-column:span 6;aspect-ratio:3/2}
.wall-item:nth-child(5){grid-column:span 3;aspect-ratio:4/3}
.wall-item:nth-child(6){grid-column:span 3;aspect-ratio:4/3}

/* ---------- 参与方式 ---------- */
.join{background:var(--primary-soft);padding:88px 0}
.join-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.form-card{
  background:var(--surface);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--sh-2);
}
.form-title{font-size:20px;font-weight:700;color:var(--ink-900);line-height:1.45;margin-bottom:6px}
.form-tip{font-size:14px;line-height:1.7;color:var(--ink-500);margin-bottom:24px}
.field{margin-bottom:20px}
.field > label{display:block;font-size:13px;font-weight:600;color:var(--ink-900);margin-bottom:8px}
.req{color:var(--primary);margin-left:2px}
.input,.select{
  width:100%;height:48px;padding:0 14px;
  border:1px solid var(--line);border-radius:10px;background:#fff;
  font-family:inherit;font-size:15px;line-height:1.4;color:var(--ink-900);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.input::placeholder{color:var(--ink-500)}
.input:focus,.select:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(242,85,44,.15);
}
.input.is-error,.select.is-error{border-color:var(--danger)}
.err{display:none;margin-top:6px;font-size:13px;line-height:1.6;color:var(--danger)}
.err.is-show{display:block}
.check-row{display:flex;align-items:flex-start;gap:10px;margin-bottom:8px}
.check-row input[type="checkbox"]{
  width:18px;height:18px;margin:3px 0 0;flex:none;accent-color:var(--primary);cursor:pointer;
}
.check-row label{font-size:13px;line-height:1.7;color:var(--ink-700);cursor:pointer}
.check-row a{color:var(--primary-press);text-decoration:underline;text-underline-offset:3px}
.form-submit{width:100%;height:52px;margin-top:8px}
.privacy{font-size:12px;line-height:1.7;color:var(--ink-500);margin-top:14px}
.form-success{
  display:none;border-radius:var(--r-md);border:1px solid rgba(18,135,111,.3);
  background:var(--accent-soft);padding:24px;
}
.form-success.is-show{display:block}
.form-success h3{font-size:17px;font-weight:700;color:var(--accent);line-height:1.5;margin-bottom:8px}
.form-success p{font-size:14px;line-height:1.8;color:var(--ink-700);margin-bottom:6px}
.steps{display:flex;flex-direction:column;gap:26px}
.step{display:flex;gap:16px}
.step-num{
  width:42px;height:42px;flex:none;border-radius:50%;
  border:2px solid var(--accent);background:var(--surface);color:var(--accent);
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:15px;font-weight:800;line-height:1;
  display:grid;place-items:center;
}
.step h3{font-size:17px;font-weight:700;line-height:1.5;color:var(--ink-900);margin-bottom:4px}
.step p{font-size:14px;line-height:1.75;color:var(--ink-700)}
.steps-note{
  margin-top:32px;padding:18px 20px;border-radius:var(--r-md);
  background:rgba(255,255,255,.7);border:1px solid rgba(242,85,44,.18);
  font-size:13px;line-height:1.8;color:var(--ink-700);
}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq{border-bottom:1px solid var(--line)}
.faq summary{
  display:flex;align-items:center;gap:14px;
  min-height:56px;padding:13px 12px 13px 4px;
  list-style:none;cursor:pointer;
  font-size:16px;font-weight:600;line-height:1.6;color:var(--ink-900);
  transition:background .18s ease;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::marker{content:""}
.faq summary:hover{background:var(--primary-soft)}
.faq-q{
  flex:none;font-family:var(--font-num);font-size:14px;font-weight:800;
  color:var(--primary);line-height:1;
}
.faq-plus{
  position:relative;flex:none;margin-left:auto;
  width:18px;height:18px;transition:transform .22s ease;
}
.faq-plus::before,.faq-plus::after{content:"";position:absolute;background:var(--primary);border-radius:2px}
.faq-plus::before{left:50%;top:1px;bottom:1px;width:2px;transform:translateX(-50%)}
.faq-plus::after{top:50%;left:1px;right:1px;height:2px;transform:translateY(-50%)}
.faq[open] .faq-plus{transform:rotate(45deg)}
.faq[open] summary{background:var(--primary-soft)}
.faq-body{padding:2px 46px 22px 46px;font-size:15px;line-height:1.85;color:var(--ink-700)}
.faq-foot{margin-top:24px}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-card{
  display:flex;gap:16px;
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  padding:16px;box-shadow:var(--sh-1);
  transition:box-shadow .18s ease,border-color .18s ease,transform .18s ease;
}
.news-card:hover{
  box-shadow:var(--sh-2);border-color:rgba(242,85,44,.35);transform:translateY(-2px);
}
.news-card:hover .news-title{color:var(--primary)}
.news-thumb{flex:none;width:128px;height:88px;border-radius:10px;overflow:hidden;background:var(--paper)}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-body{min-width:0;display:flex;flex-direction:column}
.news-title{
  font-size:18px;font-weight:700;line-height:1.45;color:var(--ink-900);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .18s ease;
}
.news-desc{
  margin-top:6px;font-size:14px;line-height:1.7;color:var(--ink-500);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:10px;font-size:12px;color:var(--ink-500)}
.empty{
  text-align:center;padding:56px 24px;
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-lg);
}
.empty svg{width:48px;height:48px;margin:0 auto 14px;stroke:var(--ink-500);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.empty p{font-size:15px;line-height:1.8;color:var(--ink-500);margin-bottom:18px}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink-900);color:rgba(255,255,255,.62);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{width:32px;height:32px;border-radius:9px}
.footer-brand span{font-size:17px;font-weight:800;color:#fff;line-height:1.3}
.footer-desc{font-size:12px;line-height:1.8;color:rgba(255,255,255,.5);max-width:280px}
.footer h4{font-size:14px;font-weight:700;color:#fff;line-height:1.6;margin-bottom:14px}
.footer-list{display:flex;flex-direction:column;gap:2px}
.footer-list a,.footer-list span{font-size:14px;line-height:1.7;padding:3px 0;color:rgba(255,255,255,.62);transition:color .18s ease}
.footer-list a:hover{color:var(--primary)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:18px 0 22px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;line-height:1.7;color:rgba(255,255,255,.42);
}
.footer-bottom a{color:rgba(255,255,255,.42)}
.footer-bottom a:hover{color:var(--primary)}

/* ---------- 平板：侧栏收窄 ---------- */
@media (min-width:992px) and (max-width:1199px){
  .sidebar{width:88px;padding:20px 12px;overflow:visible}
  .brand{justify-content:center;padding:2px 0 22px;gap:0}
  .brand-text{display:none}
  .nav-link{justify-content:center;padding:0;gap:0}
  .nav-link span{display:none}
  .nav-link::after{
    content:attr(data-label);
    position:absolute;left:64px;top:50%;
    transform:translateY(-50%) translateX(-6px);
    background:var(--ink-900);color:#fff;
    font-size:13px;font-weight:600;line-height:1.5;
    padding:6px 12px;border-radius:8px;white-space:nowrap;
    box-shadow:var(--sh-3);
    opacity:0;pointer-events:none;z-index:10;
    transition:opacity .16s ease,transform .16s ease;
  }
  .nav-link:hover::after,.nav-link:focus-visible::after{opacity:1;transform:translateY(-50%) translateX(0)}
  .side-cta{width:44px;padding:0;margin:0 auto}
  .side-cta span{display:none}
  .side-note{display:none}
  .page{margin-left:88px}
  .hero-grid{grid-template-columns:1fr 1fr;gap:40px}
}

/* ---------- 平板 / 手机：顶部栏 + 抽屉 ---------- */
@media (max-width:991px){
  :root{--pad-x:28px}
  .sidebar{display:none}
  .page{margin-left:0}
  .mobile-bar{display:flex}
  .drawer{
    display:block;
    position:fixed;top:0;left:0;bottom:0;width:300px;max-width:86vw;z-index:80;
    background:var(--ink-900);padding:20px 16px 24px;
    transform:translateX(-100%);
    transition:transform .28s ease;
    overflow-y:auto;
  }
  .drawer.is-open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}
  .drawer-close{
    width:40px;height:40px;flex:none;display:grid;place-items:center;
    border:1px solid rgba(255,255,255,.16);border-radius:10px;
    background:transparent;color:#fff;cursor:pointer;
    transition:background .18s ease;
  }
  .drawer-close:hover{background:rgba(255,255,255,.08)}
  .drawer-close svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round}
  .overlay{
    display:block;position:fixed;inset:0;z-index:70;
    background:rgba(28,21,34,.45);
    opacity:0;pointer-events:none;
    transition:opacity .28s ease;
  }
  .overlay.is-open{opacity:1;pointer-events:auto}
  body.no-scroll{overflow:hidden}
  .section,.join{padding:64px 0}
  .hero{padding:44px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-sub{max-width:none}
  .hero-media{order:2}
  .points{grid-template-columns:1fr;border-top:1px dashed var(--line)}
  .join-grid{grid-template-columns:1fr;gap:36px}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}

@media (max-width:767px){
  :root{--pad-x:18px}
  .topbar{position:static}
  .topbar-inner{flex-wrap:wrap;gap:10px;padding:10px 18px;min-height:0}
  .topbar-left{flex:1 1 100%;order:1}
  .topbar-mid{order:2;flex:1 1 auto;margin-left:0}
  .topbar-right{order:3;margin-left:0}
  .cd-num{min-width:28px;height:26px;font-size:13px;padding:0 4px;border-radius:5px}
  .cd-sep{font-size:11px}
  .section,.join{padding:44px 0}
  .hero{padding:32px 0 44px}
  .hero-actions{flex-direction:column;gap:12px}
  .hero-actions .btn{width:100%}
  .chips{gap:8px}
  .chip{font-size:12px;padding:6px 12px}
  .wall{grid-template-columns:repeat(2,1fr);gap:14px}
  .wall-item:nth-child(n){grid-column:span 1;aspect-ratio:4/3}
  .point{flex-direction:row;gap:14px;padding:22px 0}
  .point-num{font-size:32px}
  .form-card{padding:22px 18px}
  .news-card{gap:12px;padding:12px}
  .news-thumb{width:96px;height:72px}
  .news-title{font-size:16px}
  .news-desc{font-size:13px}
  .faq-body{padding:2px 8px 20px 30px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-desc{max-width:none}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
}

@media (max-width:479px){
  .hero h1{font-size:26px}
  .section-title{font-size:21px}
  .news-grid{gap:12px}
  .hero-card{padding:10px 14px;min-width:132px}
  .hero-card span{font-size:20px}
  .btn{height:46px;font-size:14px;padding:0 16px}
  .faq summary{font-size:15px;gap:10px}
  .step-num{width:38px;height:38px;font-size:14px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}
}

/* roulang page: article */
:root{
  --ink-900:#1C1522;
  --ink-700:#3B3143;
  --ink-500:#6B6076;
  --line:#E8E0D6;
  --paper:#FBF7F2;
  --surface:#FFFFFF;
  --primary:#F2552C;
  --primary-press:#D6431E;
  --primary-soft:#FFEDE6;
  --accent:#12876F;
  --accent-soft:#E4F5F0;
  --danger:#D0342C;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(28,21,34,.05);
  --sh-2:0 8px 20px rgba(28,21,34,.07);
  --sh-3:0 16px 40px rgba(28,21,34,.10);
  --num:"DIN Alternate","Barlow",ui-monospace,system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-700);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--ink-900);text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease}
a:hover{color:var(--primary-press)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink-900);letter-spacing:0}
p{margin:0}
ul,ol{margin:0;padding:0}
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 40px}
.num{font-family:var(--num);font-variant-numeric:tabular-nums}

/* ---------- 左侧导航 ---------- */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:244px;z-index:60;
  background:var(--ink-900);
  display:flex;flex-direction:column;
  padding:22px 16px 20px;
  border-right:1px solid rgba(255,255,255,.06);
}
.brand{display:flex;align-items:center;gap:10px;padding:4px 8px 22px;color:#fff;font-size:17px;font-weight:800}
.brand-mark{
  width:32px;height:32px;border-radius:10px;background:var(--primary);color:#fff;
  display:grid;place-items:center;font-size:16px;font-weight:800;flex:0 0 auto;
}
.nav{display:flex;flex-direction:column;gap:4px}
.nav-link{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:10px;
  color:rgba(255,255,255,.72);font-size:15px;font-weight:500;
  transition:background-color .18s ease,color .18s ease;
}
.nav-link svg{width:20px;height:20px;flex:0 0 auto;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.nav-link:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-link:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(242,85,44,.45)}
.nav-link.is-active{background:rgba(255,255,255,.10);color:#fff;font-weight:700}
.nav-link.is-active::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:2px;background:var(--primary);
}
.side-divider{height:1px;background:rgba(255,255,255,.10);margin:18px 8px}
.side-cta{
  display:flex;align-items:center;justify-content:center;
  height:44px;border-radius:10px;background:var(--primary);color:#fff;
  font-size:15px;font-weight:700;text-decoration:none;transition:.18s ease;
}
.side-cta:hover{background:var(--primary-press);color:#fff;transform:translateY(-1px);box-shadow:0 6px 18px rgba(242,85,44,.28)}
.side-cta:active{transform:none;box-shadow:none}
.side-cta:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(242,85,44,.45)}
.side-foot{margin-top:auto;padding:16px 8px 0;font-size:13px;line-height:1.7;color:rgba(255,255,255,.45)}

/* ---------- 移动端顶栏 ---------- */
.mbar{
  display:none;align-items:center;gap:12px;
  height:60px;padding:0 18px;background:var(--surface);
  border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;
}
.mbar-burger{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:var(--surface);
  display:grid;place-items:center;cursor:pointer;padding:0;color:var(--ink-900);
}
.mbar-burger:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(242,85,44,.35)}
.mbar-burger svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round}
.mbar-brand{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:800;color:var(--ink-900);margin-right:auto}
.mbar-brand .brand-mark{width:28px;height:28px;border-radius:8px;font-size:14px}
.mbar-cta{
  height:38px;padding:0 16px;border-radius:10px;background:var(--primary);color:#fff;
  display:inline-flex;align-items:center;font-size:13px;font-weight:700;
}
.mbar-cta:hover{background:var(--primary-press);color:#fff}

.backdrop{
  position:fixed;inset:0;background:rgba(28,21,34,.45);z-index:70;
  opacity:0;visibility:hidden;transition:.2s ease;
}
.drawer{
  position:fixed;left:0;top:0;bottom:0;width:300px;max-width:86vw;z-index:80;
  background:var(--ink-900);padding:22px 16px;
  display:flex;flex-direction:column;
  transform:translateX(-104%);transition:transform .24s ease;
  box-shadow:var(--sh-3);
}
body.drawer-open{overflow:hidden}
body.drawer-open .backdrop{opacity:1;visibility:visible}
body.drawer-open .drawer{transform:translateX(0)}

/* ---------- 主体 ---------- */
.shell-main{margin-left:244px;min-height:100vh;display:flex;flex-direction:column}
.main{flex:1 0 auto}

.page-head{padding:34px 0 0}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-500);line-height:1.6;
}
.crumbs a{color:var(--ink-500);text-decoration:none}
.crumbs a:hover{color:var(--primary-press)}
.crumbs .sep{color:rgba(28,21,34,.25)}
.crumbs .now{color:var(--ink-700);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:inline-block;vertical-align:bottom;max-width:min(420px,62vw)}

.brand-strip{
  display:inline-flex;align-items:center;gap:9px;
  margin:20px 0 0;padding:5px 14px 5px 5px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-pill);
  font-size:13px;font-weight:600;color:var(--ink-700);
}
.brand-strip .brand-mark{width:24px;height:24px;border-radius:7px;font-size:12px}
.brand-strip i{font-style:normal;color:var(--ink-500);font-weight:500;padding-left:9px;border-left:1px solid var(--line)}

.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:var(--r-pill);
  background:var(--primary-soft);color:var(--primary-press);font-size:12px;font-weight:600;
}
.badge-green{background:var(--accent-soft);color:var(--accent)}

.article-title{
  font-size:clamp(26px,2.8vw,38px);
  line-height:1.28;font-weight:800;color:var(--ink-900);
  margin:16px 0 14px;word-break:break-word;overflow-wrap:break-word;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;font-size:13px;color:var(--ink-500)}
.meta-row .dot{width:3px;height:3px;border-radius:50%;background:rgba(28,21,34,.22)}
.meta-row strong{font-weight:600;color:var(--ink-700)}

.cover{margin:26px 0 0;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:var(--surface);box-shadow:var(--sh-1)}
.cover img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ---------- 两栏 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,760px) 300px;gap:48px;
  padding:36px 0 76px;
  align-items:start;
}

/* ---------- 正文 ---------- */
.prose{min-width:0;overflow-wrap:break-word}
.prose > *:first-child{margin-top:0}
.prose h2{
  position:relative;padding-left:18px;margin:40px 0 16px;
  font-size:clamp(20px,2vw,26px);line-height:1.4;font-weight:700;color:var(--ink-900);
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.16em;width:4px;height:.95em;border-radius:2px;background:var(--primary);
}
.prose h3{margin:28px 0 12px;font-size:19px;line-height:1.45;font-weight:700;color:var(--ink-900)}
.prose p{margin:0 0 20px;font-size:17px;line-height:1.9;color:var(--ink-700)}
.prose ul,.prose ol{margin:0 0 20px;padding-left:1.4em}
.prose li{margin:6px 0;font-size:17px;line-height:1.9}
.prose ul li::marker{color:var(--primary)}
.prose ol li::marker{color:var(--primary);font-weight:700}
.prose blockquote{
  margin:24px 0;padding:18px 20px;background:var(--paper);
  border-left:3px solid var(--primary);border-radius:0 10px 10px 0;
  color:var(--ink-700);font-size:16px;line-height:1.85;
}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{border-radius:10px;margin:24px 0;width:100%;height:auto}
.prose figcaption,.prose .caption{font-size:13px;color:var(--ink-500);text-align:center;margin:-8px 0 24px}
.prose table{width:100%;border-collapse:collapse;font-size:15px;margin:22px 0}
.prose th,.prose td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.prose th{background:var(--paper);color:var(--ink-900);font-weight:700}
.prose a{color:var(--ink-900);text-decoration:underline;text-decoration-color:rgba(242,85,44,.55);text-underline-offset:3px}
.prose a:hover{color:var(--primary-press);text-decoration-color:var(--primary-press)}
.prose code{background:var(--paper);border-radius:4px;padding:2px 6px;font-size:.9em;color:var(--ink-900)}
.prose hr{border:0;border-top:1px solid var(--line);margin:32px 0}

.article-foot{
  margin-top:36px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--surface);border:1px solid var(--line);color:var(--ink-700);font-size:13px;
}
.tag:hover{background:var(--primary-soft);border-color:rgba(242,85,44,.35);color:var(--primary-press)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:10px;border:0;
  font-size:15px;font-weight:700;cursor:pointer;text-decoration:none;
  transition:background-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-press);color:#fff;transform:translateY(-1px);box-shadow:0 6px 18px rgba(242,85,44,.28)}
.btn-primary:active{transform:none;box-shadow:none}
.btn-ghost{background:transparent;color:var(--ink-900);border:1.5px solid var(--ink-900)}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary-press)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(242,85,44,.35)}

/* ---------- 侧栏 ---------- */
.aside{display:flex;flex-direction:column;gap:20px;min-width:0}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  padding:18px;box-shadow:var(--sh-1);
}
.side-card h3{font-size:14px;font-weight:700;color:var(--ink-900);margin-bottom:12px}
.toc{position:sticky;top:24px}
#tocList{display:flex;flex-direction:column;gap:2px}
#tocList a{
  display:block;font-size:14px;line-height:1.6;color:var(--ink-500);
  padding:7px 10px;border-left:2px solid transparent;border-radius:0 8px 8px 0;
}
#tocList a:hover{color:var(--ink-900);background:var(--primary-soft)}
#tocList a.is-current{color:var(--primary-press);border-left-color:var(--primary);background:var(--primary-soft);font-weight:600}

.cat-list{display:flex;flex-direction:column;gap:2px}
.cat-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:9px 10px;border-radius:8px;font-size:14px;color:var(--ink-700);
}
.cat-list a:hover{background:var(--primary-soft);color:var(--primary-press)}
.cat-list a span{font-family:var(--num);font-size:12px;color:var(--ink-500)}

.support-card{background:var(--accent-soft);border:1px solid rgba(18,135,111,.18);border-radius:14px;padding:18px}
.support-card h3{font-size:14px;font-weight:700;color:var(--ink-900);margin-bottom:8px}
.support-card p{font-size:13px;line-height:1.75;color:var(--ink-700)}
.support-card .time{font-family:var(--num);font-weight:700;color:var(--accent);font-size:15px}

/* ---------- 空态 ---------- */
.empty-state{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  padding:48px 24px;text-align:center;box-shadow:var(--sh-1);
}
.empty-state svg{width:48px;height:48px;margin:0 auto 16px;fill:none;stroke:var(--ink-500);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.empty-state p{font-size:15px;color:var(--ink-500);margin-bottom:20px}

/* ---------- 相关推荐 ---------- */
.related{padding:0 0 76px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px}
.sec-title{
  position:relative;padding-left:16px;
  font-size:clamp(20px,2.1vw,26px);line-height:1.35;font-weight:700;color:var(--ink-900);
}
.sec-title::before{content:"";position:absolute;left:0;top:.18em;width:4px;height:.95em;border-radius:2px;background:var(--primary)}
.sec-link{font-size:14px;color:var(--ink-700);border-bottom:1px solid rgba(242,85,44,.5);padding-bottom:2px}
.sec-link:hover{color:var(--primary-press);border-color:var(--primary-press)}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  padding:14px;box-shadow:var(--sh-1);transition:box-shadow .18s ease,border-color .18s ease,transform .18s ease;
}
.rel-card:hover{box-shadow:var(--sh-2);border-color:rgba(242,85,44,.35);transform:translateY(-2px)}
.rel-card img{width:96px;height:72px;flex:0 0 auto;border-radius:10px;object-fit:cover}
.rel-card h4{font-size:15px;line-height:1.5;font-weight:700;color:var(--ink-900);margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card:hover h4{color:var(--primary-press)}
.rel-card time{font-size:12px;color:var(--ink-500);font-family:var(--num)}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink-900);color:rgba(255,255,255,.68);padding:58px 0 0;margin-top:auto}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:800;margin-bottom:14px}
.footer-brand .brand-mark{width:30px;height:30px;border-radius:9px;font-size:14px}
.footer-desc{font-size:13px;line-height:1.85;color:rgba(255,255,255,.55);max-width:320px}
.footer h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-list{display:flex;flex-direction:column;gap:10px;font-size:14px}
.footer-list a{color:rgba(255,255,255,.68)}
.footer-list a:hover{color:var(--primary)}
.footer-list span{color:rgba(255,255,255,.55);font-size:14px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.45);
}

/* ---------- 断点 ---------- */
@media (min-width:992px) and (max-width:1199px){
  .sidebar{width:88px;padding:20px 12px}
  .brand{padding:4px 0 20px;justify-content:center}
  .brand .brand-name{display:none}
  .nav-link{justify-content:center;padding:0}
  .nav-link span{display:none}
  .nav-link::after{
    content:attr(data-label);position:absolute;left:calc(100% + 10px);top:50%;
    transform:translateY(-50%);background:var(--ink-900);color:#fff;
    padding:6px 12px;border-radius:8px;font-size:13px;white-space:nowrap;
    opacity:0;pointer-events:none;transition:opacity .15s ease;box-shadow:var(--sh-2);
  }
  .nav-link:hover::after,.nav-link:focus-visible::after{opacity:1}
  .side-divider{margin:16px 0}
  .side-cta{font-size:0;padding:0}
  .side-cta::before{content:"领";font-size:15px}
  .side-foot{display:none}
  .shell-main{margin-left:88px}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .aside{display:none}
}
@media (max-width:991px){
  .sidebar{display:none}
  .mbar{display:flex}
  .shell-main{margin-left:0}
  .container{padding:0 28px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;padding:28px 0 56px}
  .aside{display:none}
  .rel-grid{grid-template-columns:1fr;gap:14px}
  .related{padding-bottom:56px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .page-head{padding:22px 0 0}
  .article-title{font-size:clamp(24px,6vw,30px);margin:12px 0 12px}
  .cover{margin-top:20px}
  .prose p,.prose li{font-size:16px;line-height:1.85}
  .prose h2{margin:32px 0 14px}
  .article-foot{flex-direction:column;align-items:stretch}
  .article-foot .btn{width:100%}
  .footer{padding-top:44px}
  .footer-grid{grid-template-columns:1fr;gap:24px;padding-bottom:30px}
  .footer-desc{max-width:none}
  .footer-bottom{font-size:12px}
  .rel-card img{width:88px;height:66px}
}
@media (max-width:520px){
  .brand-strip{font-size:12px;padding:4px 12px 4px 4px}
  .meta-row{font-size:12px;gap:8px 12px}
  .crumbs .now{max-width:56vw}
  .rel-grid{gap:12px}
  .empty-state{padding:36px 18px}
  .tag{height:30px;font-size:12px;padding:0 12px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}

/* roulang page: category1 */
:root{
  --ink-900:#1C1522;
  --ink-700:#3B3143;
  --ink-500:#6B6076;
  --line:#E8E0D6;
  --paper:#FBF7F2;
  --surface:#FFFFFF;
  --primary:#F2552C;
  --primary-press:#D6431E;
  --primary-soft:#FFEDE6;
  --accent:#12876F;
  --accent-soft:#E4F5F0;
  --danger:#D0342C;
  --radius-sm:8px;
  --radius-md:12px;
  --radius-lg:16px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(28,21,34,.05);
  --shadow-2:0 8px 20px rgba(28,21,34,.07);
  --shadow-3:0 16px 40px rgba(28,21,34,.10);
  --sidebar-w:244px;
  --container:1160px;
  --ease:180ms ease;
  --font-base:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"DIN Alternate","Barlow",ui-sans-serif,system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-700);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;object-fit:cover;}
a{color:var(--ink-900);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--primary);}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;color:var(--ink-900);}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(242,85,44,.55);outline-offset:2px;border-radius:4px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 40px;
}
.section{padding:88px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:28px;
}
.h2{
  position:relative;
  font-size:clamp(22px,2.2vw,30px);
  font-weight:700;
  line-height:1.32;
  padding-left:16px;
}
.h2::before{
  content:"";
  position:absolute;
  left:0;top:.12em;
  width:4px;
  height:.9em;
  background:var(--primary);
  border-radius:2px;
}
.h3{font-size:19px;font-weight:700;line-height:1.45;}
.section-index{
  font-family:var(--font-num);
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--ink-500);
  white-space:nowrap;
}
.lead{font-size:15px;line-height:1.8;color:var(--ink-500);}
.muted{color:var(--ink-500);font-size:14px;line-height:1.6;}
.text-link{
  font-size:14px;
  font-weight:600;
  color:var(--ink-900);
  border-bottom:1px solid rgba(242,85,44,.45);
  padding-bottom:2px;
}
.text-link:hover{color:var(--primary);border-color:var(--primary);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 22px;
  border-radius:10px;
  border:1.5px solid transparent;
  font-size:15px;
  font-weight:700;
  line-height:1;
  text-align:center;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-press);color:#fff;transform:translateY(-1px);box-shadow:0 6px 18px rgba(242,85,44,.28);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--ink-900);border-color:var(--ink-900);}
.btn-ghost:hover{background:var(--primary-soft);color:var(--ink-900);border-color:var(--ink-900);}
.btn-light{background:#fff;color:var(--ink-900);border-color:var(--line);}
.btn-light:hover{background:var(--primary-soft);color:var(--primary-press);border-color:rgba(242,85,44,.35);}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none;}

/* ---------- Sidebar ---------- */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:var(--ink-900);
  color:#fff;
  padding:26px 18px 22px;
  display:flex;
  flex-direction:column;
  gap:22px;
  z-index:60;
  overflow-y:auto;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:17px;
  font-weight:800;
  line-height:1.3;
}
.brand:hover{color:#fff;}
.brand-mark{
  flex:none;
  width:32px;height:32px;
  border-radius:9px;
  background:var(--primary);
  color:#fff;
  font-size:16px;
  font-weight:800;
  display:grid;
  place-items:center;
}
.nav{display:flex;flex-direction:column;gap:4px;}
.nav-link{
  position:relative;
  display:flex;
  align-items:center;
  gap:11px;
  min-height:44px;
  padding:0 12px;
  border-radius:10px;
  color:rgba(255,255,255,.78);
  font-size:14.5px;
  font-weight:600;
  transition:background var(--ease),color var(--ease);
}
.nav-link svg{
  width:20px;height:20px;flex:none;
  fill:none;stroke:currentColor;stroke-width:1.75;
  stroke-linecap:round;stroke-linejoin:round;
}
.nav-link:hover{background:rgba(255,255,255,.06);color:#fff;}
.nav-link.is-active{
  background:rgba(242,85,44,.16);
  color:#fff;
  font-weight:700;
  box-shadow:0 0 0 1px rgba(242,85,44,.28) inset;
}
.nav-link.is-active::before{
  content:"";
  position:absolute;
  left:0;top:9px;bottom:9px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--primary);
}
.sidebar-divider{height:1px;background:rgba(255,255,255,.12);}
.sidebar-note{
  margin-top:auto;
  font-size:13px;
  line-height:1.7;
  color:rgba(255,255,255,.5);
}

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

/* ---------- Ticker ---------- */
.ticker{
  position:sticky;
  top:0;
  z-index:30;
  background:var(--ink-900);
  border-top:2px solid var(--primary);
  color:#fff;
}
.ticker-inner{
  max-width:var(--container);
  margin:0 auto;
  padding:0 40px;
  min-height:52px;
  display:flex;
  align-items:center;
  gap:20px;
}
.ticker-label{display:flex;align-items:center;gap:10px;min-width:0;}
.ticker-badge{
  flex:none;
  background:var(--primary);
  color:#fff;
  font-size:12px;
  font-weight:700;
  padding:3px 9px;
  border-radius:4px;
}
.ticker-name{
  font-size:14px;
  font-weight:600;
  color:rgba(255,255,255,.9);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.countdown{display:flex;align-items:center;gap:6px;margin-left:auto;}
.cd-item{display:flex;align-items:baseline;gap:3px;}
.cd-num{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:16px;
  font-weight:700;
  background:rgba(255,255,255,.14);
  color:#fff;
  border-radius:6px;
  padding:3px 8px;
  min-width:36px;
  text-align:center;
}
.cd-unit{font-size:12px;color:rgba(255,255,255,.6);}
.ticker .btn{flex:none;}

/* ---------- Mobile bar ---------- */
.mobile-bar{
  display:none;
  position:sticky;
  top:0;
  z-index:50;
  height:60px;
  background:#fff;
  border-bottom:1px solid var(--line);
  align-items:center;
  gap:12px;
  padding:0 18px;
}
.menu-btn{
  width:44px;height:44px;
  display:grid;place-items:center;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  color:var(--ink-900);
}
.menu-btn svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;}
.mobile-brand{
  display:flex;align-items:center;gap:8px;
  font-size:15.5px;font-weight:800;color:var(--ink-900);
  margin-right:auto;
}
.mobile-brand .brand-mark{width:28px;height:28px;font-size:14px;border-radius:8px;}

/* ---------- Drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(28,21,34,.45);
  opacity:0;visibility:hidden;
  transition:opacity var(--ease),visibility var(--ease);
  z-index:70;
}
.drawer{
  position:fixed;
  top:0;left:0;bottom:0;
  width:300px;
  max-width:86vw;
  background:var(--ink-900);
  padding:24px 18px;
  display:flex;
  flex-direction:column;
  gap:20px;
  transform:translateX(-102%);
  transition:transform 240ms ease;
  z-index:80;
  overflow-y:auto;
}
body.drawer-open .drawer{transform:translateX(0);}
body.drawer-open .drawer-mask{opacity:1;visibility:visible;}
body.drawer-open{overflow:hidden;}
.drawer-close{
  position:absolute;
  right:12px;top:12px;
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:8px;
  border:1px solid rgba(255,255,255,.2);
  background:transparent;
  color:#fff;
}
.drawer-close:hover{background:rgba(255,255,255,.08);}
.drawer-close svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background:var(--ink-900) url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  color:#fff;
  padding:56px 0 64px;
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(28,21,34,.94) 0%,rgba(28,21,34,.86) 46%,rgba(28,21,34,.66) 100%);
  z-index:1;
}
.hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.6);
  margin-bottom:18px;
}
.breadcrumb a{color:rgba(255,255,255,.72);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb span.sep{opacity:.5;}
.hero h1{
  color:#fff;
  font-size:clamp(28px,3.4vw,44px);
  font-weight:800;
  line-height:1.22;
  margin:0 0 16px;
  max-width:16em;
}
.hero-sub{
  font-size:16px;
  line-height:1.8;
  color:rgba(255,255,255,.78);
  max-width:36em;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-actions .btn-ghost{color:#fff;border-color:rgba(255,255,255,.55);}
.hero-actions .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.hero-bottom{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:28px;
  align-items:end;
}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:7px 14px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.09);
  font-size:13px;
  color:rgba(255,255,255,.88);
}
.chip strong{color:#fff;font-weight:700;}
.dot{width:6px;height:6px;border-radius:50%;background:var(--primary);flex:none;}
.dot.accent{background:#4FD2B2;}
.spec-card{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-md);
  padding:16px 18px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:14px;
  backdrop-filter:blur(2px);
}
.spec-item{min-width:0;}
.spec-num{
  display:block;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:22px;
  font-weight:700;
  color:#fff;
  line-height:1.2;
}
.spec-num .unit{font-size:13px;font-weight:600;color:rgba(255,255,255,.65);margin-left:2px;}
.spec-label{font-size:12.5px;color:rgba(255,255,255,.6);}

/* ---------- Filter chips ---------- */
.filter-bar{
  position:relative;
  padding:26px 0 0;
}
.filter-scroll{
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding-bottom:6px;
  scrollbar-width:thin;
}
.filter-scroll::-webkit-scrollbar{height:6px;}
.filter-scroll::-webkit-scrollbar-thumb{background:var(--line);border-radius:3px;}
.filter-chip{
  flex:none;
  min-height:40px;
  display:inline-flex;
  align-items:center;
  padding:0 18px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-700);
  font-size:14px;
  font-weight:600;
  transition:all var(--ease);
}
.filter-chip:hover{border-color:rgba(242,85,44,.4);color:var(--primary-press);}
.filter-chip.is-active{
  background:var(--primary);
  border-color:var(--primary);
  color:#fff;
  box-shadow:0 6px 16px rgba(242,85,44,.24);
}

/* ---------- Featured card ---------- */
.featured{
  position:relative;
  display:block;
  margin-top:26px;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-2);
  background:var(--ink-900);
}
.featured-media{position:relative;aspect-ratio:16/9;}
.featured-media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms ease;}
.featured:hover .featured-media img{transform:scale(1.03);}
.featured-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(28,21,34,0) 40%,rgba(28,21,34,.72) 100%);
}
.featured-tag{
  position:absolute;
  left:20px;top:20px;
  z-index:2;
  background:var(--primary);
  color:#fff;
  font-size:12px;
  font-weight:700;
  padding:5px 10px;
  border-radius:4px;
  letter-spacing:.02em;
}
.featured-info{
  position:absolute;
  left:22px;bottom:22px;
  z-index:2;
  background:#fff;
  border-radius:var(--radius-md);
  padding:18px 20px;
  max-width:min(430px,72%);
  box-shadow:var(--shadow-2);
}
.featured-info h3{font-size:20px;font-weight:700;margin-bottom:6px;line-height:1.4;}
.featured-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--ink-500);
  margin-bottom:14px;
}
.badge{
  display:inline-flex;
  align-items:center;
  padding:2px 9px;
  border-radius:var(--radius-pill);
  font-size:12px;
  font-weight:600;
  background:var(--primary-soft);
  color:var(--primary-press);
}
.badge.accent{background:var(--accent-soft);color:var(--accent);}
.badge.ink{background:rgba(28,21,34,.07);color:var(--ink-700);}
.featured-info .btn{min-height:42px;padding:0 18px;font-size:14px;}

/* ---------- Activity list ---------- */
.act-list{display:flex;flex-direction:column;margin-top:34px;border-top:1px solid var(--line);}
.act-item{
  display:grid;
  grid-template-columns:40% 60%;
  gap:0;
  border-bottom:1px solid var(--line);
  padding:26px 0;
  align-items:stretch;
}
.act-thumb{
  position:relative;
  border-radius:var(--radius-md);
  overflow:hidden;
  aspect-ratio:16/10;
  background:var(--paper);
}
.act-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease;}
.act-body{padding-left:30px;display:flex;flex-direction:column;justify-content:center;}
.act-item:hover .act-thumb img{transform:scale(1.04);}
.act-title{
  font-size:20px;
  font-weight:700;
  line-height:1.45;
  margin-bottom:10px;
  display:inline-block;
  color:var(--ink-900);
  transition:color var(--ease);
}
.act-item:hover .act-title{color:var(--primary);}
.act-desc{
  font-size:14px;
  line-height:1.75;
  color:var(--ink-500);
  margin-bottom:14px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.act-foot{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  font-size:13px;
  color:var(--ink-500);
}
.act-foot .text-link{margin-left:auto;}

/* ---------- Rank ---------- */
.rank-wrap{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start;}
.rank-list{border-top:1px solid var(--line);}
.rank-item{
  display:flex;
  align-items:center;
  gap:16px;
  padding:18px 0;
  border-bottom:1px solid var(--line);
  transition:background var(--ease);
}
.rank-item:hover{background:rgba(255,237,230,.5);}
.rank-num{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:26px;
  font-weight:700;
  line-height:1;
  color:rgba(28,21,34,.16);
  width:44px;
  flex:none;
  transition:color var(--ease);
}
.rank-item:hover .rank-num{color:var(--primary);}
.rank-main{min-width:0;flex:1;}
.rank-title{font-size:16px;font-weight:700;color:var(--ink-900);display:block;margin-bottom:3px;}
.rank-item:hover .rank-title{color:var(--primary);}
.rank-meta{font-size:13px;color:var(--ink-500);}
.rank-value{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:14px;
  font-weight:700;
  color:var(--accent);
  white-space:nowrap;
}
.rank-aside{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:26px;
  box-shadow:var(--shadow-1);
}
.rank-aside h3{font-size:18px;font-weight:700;margin-bottom:14px;}
.rank-aside ul{display:flex;flex-direction:column;gap:12px;}
.rank-aside li{display:flex;gap:10px;font-size:14px;line-height:1.7;color:var(--ink-700);}
.rank-aside li .dot{margin-top:9px;}
.rank-aside .aside-note{
  margin-top:20px;
  padding-top:18px;
  border-top:1px dashed var(--line);
  font-size:13px;
  color:var(--ink-500);
}

/* ---------- Pager ---------- */
.pager{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  margin-top:44px;
  flex-wrap:wrap;
}
.pager a,.pager span.pager-ellipsis{
  width:40px;height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  border:1px solid var(--line);
  background:#fff;
  font-size:14px;
  font-weight:600;
  color:var(--ink-700);
  font-variant-numeric:tabular-nums;
}
.pager a:hover{border-color:rgba(242,85,44,.4);color:var(--primary-press);}
.pager .is-current{
  background:var(--primary);
  border-color:var(--primary);
  color:#fff;
}
.pager .pager-next{width:auto;padding:0 18px;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink-900);
  color:#fff;
  padding:64px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  right:-90px;top:-90px;
  width:340px;height:340px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(242,85,44,.30),rgba(242,85,44,0) 70%);
}
.cta-inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-band h2{
  color:#fff;
  font-size:clamp(22px,2.2vw,28px);
  font-weight:700;
  line-height:1.35;
  margin-bottom:10px;
}
.cta-band p{color:rgba(255,255,255,.7);font-size:14.5px;line-height:1.7;max-width:42em;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.5);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}

/* ---------- Footer ---------- */
.footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:64px 0 26px;}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr .8fr .8fr 1fr;
  gap:36px;
  padding-bottom:36px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-size:17px;font-weight:800;margin-bottom:14px;
}
.footer-desc{font-size:12.5px;line-height:1.8;color:rgba(255,255,255,.55);max-width:26em;}
.footer h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:14px;}
.footer-list{display:flex;flex-direction:column;gap:10px;}
.footer-list a,.footer-list span{font-size:13.5px;color:rgba(255,255,255,.64);}
.footer-list a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  padding-top:22px;
  font-size:13px;
  color:rgba(255,255,255,.45);
}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  :root{--sidebar-w:88px;}
  .sidebar{padding:22px 12px;align-items:center;}
  .brand span:not(.brand-mark){display:none;}
  .brand{justify-content:center;}
  .nav-link{justify-content:center;padding:0;width:44px;}
  .nav-link span{display:none;}
  .nav-link.is-active::before{top:8px;bottom:8px;}
  .sidebar-divider{width:100%;}
  .sidebar-note{display:none;}
  .sidebar .btn{width:44px;padding:0;font-size:0;}
  .sidebar .btn::after{content:"领";font-size:14px;}
  .hero-bottom{grid-template-columns:1fr;}
  .rank-wrap{grid-template-columns:1fr;gap:28px;}
  .container{padding:0 28px;}
  .ticker-inner{padding:0 28px;}
}
@media (max-width:991px){
  .sidebar{display:none;}
  .shell{margin-left:0;}
  .mobile-bar{display:flex;}
  .ticker{position:static;}
  .ticker-inner{flex-wrap:wrap;padding:10px 18px;gap:12px;min-height:0;}
  .countdown{margin-left:0;}
  .ticker .btn{width:100%;}
  .container{padding:0 18px;}
  .section{padding:64px 0;}
  .hero{padding:40px 0 48px;}
  .act-item{grid-template-columns:1fr;gap:16px;}
  .act-body{padding-left:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .featured-info{position:relative;left:auto;bottom:auto;max-width:none;margin:0;border-radius:0 0 var(--radius-lg) var(--radius-lg);}
  .featured-media::after{display:none;}
}
@media (max-width:767px){
  .section{padding:44px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .hero-actions .btn{width:100%;}
  .spec-card{grid-template-columns:1fr;gap:12px;text-align:left;}
  .spec-item{display:flex;align-items:baseline;gap:10px;}
  .spec-num{font-size:19px;}
  .cd-num{font-size:14px;min-width:32px;padding:3px 6px;}
  .featured-info{padding:16px;}
  .featured-info h3{font-size:18px;}
  .pager{gap:8px;}
  .pager a,.pager span.pager-ellipsis{width:38px;height:38px;}
  .pager .pager-next{width:auto;padding:0 16px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer{padding:44px 0 22px;}
  .footer-bottom{flex-direction:column;}
  .act-title{font-size:18px;}
}
@media (max-width:479px){
  body{font-size:15px;}
  .hero h1{font-size:26px;}
  .h2{font-size:20px;}
  .filter-chip{padding:0 14px;font-size:13px;min-height:38px;}
  .rank-num{font-size:22px;width:36px;}
  .mobile-brand{font-size:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category2 */
:root{
  --ink-900:#1C1522;
  --ink-700:#3B3143;
  --ink-500:#6B6076;
  --line:#E8E0D6;
  --paper:#FBF7F2;
  --surface:#FFFFFF;
  --primary:#F2552C;
  --primary-press:#D6431E;
  --primary-soft:#FFEDE6;
  --accent:#12876F;
  --accent-soft:#E4F5F0;
  --danger:#D0342C;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(28,21,34,.05);
  --sh-2:0 8px 20px rgba(28,21,34,.07);
  --sh-3:0 16px 40px rgba(28,21,34,.10);
  --side-w:244px;
  --font-num:"DIN Alternate","Barlow",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-700);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--ink-900);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--primary)}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(242,85,44,.35);border-radius:6px}
.skip{position:absolute;left:-9999px;top:0;background:var(--primary);color:#fff;padding:10px 16px;border-radius:0 0 var(--r-sm) 0;z-index:200}
.skip:focus{left:0}

/* ---------- 左侧 App Shell ---------- */
.side{
  position:fixed;top:0;left:0;bottom:0;width:var(--side-w);
  background:var(--ink-900);
  padding:22px 16px 24px;
  display:flex;flex-direction:column;gap:6px;
  overflow-y:auto;z-index:60;
}
.side-logo{display:flex;align-items:center;gap:10px;padding:4px 8px 20px;color:#fff}
.side-logo:hover{color:#fff}
.brand-mark{
  flex:0 0 32px;width:32px;height:32px;border-radius:9px;
  background:var(--primary);color:#fff;
  display:grid;place-items:center;
  font-size:16px;font-weight:800;line-height:1;
}
.side-name{font-size:17px;font-weight:800;line-height:1.25;letter-spacing:0}
.nav{display:flex;flex-direction:column;gap:4px}
.nav-link{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:10px;
  color:rgba(255,255,255,.72);font-size:15px;font-weight:500;
  transition:background .18s ease,color .18s ease;
}
.nav-link svg{width:20px;height:20px;flex:0 0 20px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.nav-link:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-link.is-active{background:rgba(242,85,44,.16);color:#fff;font-weight:700}
.nav-link.is-active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:2px;background:var(--primary);
}
.side-divider{height:1px;background:rgba(255,255,255,.12);margin:18px 4px}
.side-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 18px;border-radius:10px;
  background:var(--primary);color:#fff;font-size:15px;font-weight:700;
  box-shadow:0 6px 18px rgba(242,85,44,.24);
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
}
.side-cta svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.side-cta:hover{background:var(--primary-press);color:#fff;transform:translateY(-1px)}
.side-note{margin-top:auto;padding:16px 8px 0;font-size:13px;line-height:1.7;color:rgba(255,255,255,.42)}
.side-note strong{display:block;color:rgba(255,255,255,.72);font-weight:600}

/* ---------- 移动顶栏与抽屉 ---------- */
.topbar{display:none}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:300px;
  background:var(--ink-900);padding:20px 16px 24px;
  display:none;flex-direction:column;gap:6px;
  transform:translateX(-100%);transition:transform .26s ease;
  z-index:80;overflow-y:auto;
}
.drawer.is-open{transform:none}
.drawer-logo{display:flex;align-items:center;gap:10px;padding:4px 8px 18px;color:#fff;font-size:17px;font-weight:800}
.drawer-close{
  position:absolute;top:14px;right:12px;width:36px;height:36px;border-radius:9px;
  display:grid;place-items:center;color:rgba(255,255,255,.7);
  background:rgba(255,255,255,.06);font-size:18px;line-height:1;
}
.drawer-close:hover{color:#fff;background:rgba(255,255,255,.12)}
.scrim{
  position:fixed;inset:0;background:rgba(28,21,34,.45);
  opacity:0;pointer-events:none;transition:opacity .24s ease;z-index:70;
}
.scrim.is-open{opacity:1;pointer-events:auto}

/* ---------- 布局骨架 ---------- */
.shell{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column}
main{flex:1 1 auto}
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 40px}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;flex-wrap:wrap}
.h2{
  position:relative;padding-left:16px;
  font-size:clamp(22px,2.2vw,30px);font-weight:700;line-height:1.32;
}
.h2::before{
  content:"";position:absolute;left:0;top:.16em;
  width:4px;height:.9em;border-radius:2px;background:var(--primary);
}
.h2.on-dark{color:#fff}
.sec-idx{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:13px;font-weight:700;color:var(--ink-500);letter-spacing:.08em}
.lede{font-size:15px;line-height:1.8;color:var(--ink-500);max-width:760px;margin-top:14px}
.link-more{font-size:14px;font-weight:600;color:var(--primary);border-bottom:1px solid rgba(242,85,44,.4);padding-bottom:1px}
.link-more:hover{color:var(--primary-press);border-bottom-color:var(--primary-press)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:10px;
  font-size:15px;font-weight:700;line-height:1.2;
  border:1.5px solid transparent;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-press);color:#fff;transform:translateY(-1px);box-shadow:0 6px 18px rgba(242,85,44,.28)}
.btn-primary:active{transform:none;box-shadow:none}
.btn-ghost{border-color:var(--ink-900);color:var(--ink-900);background:transparent}
.btn-ghost:hover{background:var(--primary-soft);color:var(--ink-900)}
.btn-ghost.on-dark{border-color:rgba(255,255,255,.45);color:#fff}
.btn-ghost.on-dark:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.7)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 页头 ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--ink-900);color:#fff;padding:clamp(30px,4vw,56px) 0 clamp(34px,4.4vw,60px)}
.hero-bg{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  opacity:.34;
}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(96deg,rgba(28,21,34,.95) 0%,rgba(28,21,34,.78) 46%,rgba(28,21,34,.44) 100%);
}
.hero-inner{position:relative;z-index:2}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.6);margin-bottom:18px;flex-wrap:wrap}
.crumbs a{color:rgba(255,255,255,.72)}
.crumbs a:hover{color:var(--primary)}
.crumbs span[aria-current]{color:rgba(255,255,255,.92)}
.page-hero h1{
  color:#fff;
  font-size:clamp(28px,3.4vw,44px);
  font-weight:800;line-height:1.22;
  max-width:820px;
}
.hero-sub{margin:14px 0 0;font-size:16px;line-height:1.7;color:rgba(255,255,255,.82);max-width:700px}
.hero-note{margin:24px 0 0;font-size:14px;line-height:1.7;color:rgba(255,255,255,.6);max-width:720px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.hero-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.hero-meta li{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
  font-size:13px;color:rgba(255,255,255,.82);
  font-variant-numeric:tabular-nums;
}

/* ---------- 玩法长条 ---------- */
.guide-list{display:flex;flex-direction:column;gap:8px}
.guide-row{
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;
  padding:34px 0;border-bottom:1px dashed var(--line);
}
.guide-row:last-child{border-bottom:0;padding-bottom:0}
.guide-row:first-child{padding-top:8px}
.guide-row.flip .guide-media{order:2}
.guide-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  background:var(--surface);box-shadow:var(--sh-1);
  border:1px solid var(--line);
}
.guide-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease}
.guide-row:hover .guide-media img{transform:scale(1.03)}
.guide-tag{
  position:absolute;top:12px;left:12px;
  padding:4px 10px;border-radius:4px;
  background:rgba(28,21,34,.78);color:#fff;
  font-size:12px;font-weight:600;letter-spacing:0;
}
.guide-body .guide-num{
  display:block;
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:40px;font-weight:800;line-height:1;
  color:rgba(28,21,34,.12);margin-bottom:10px;
}
.guide-body h3{font-size:20px;line-height:1.45;margin-bottom:10px}
.guide-body p{font-size:15px;line-height:1.85;color:var(--ink-700);max-width:520px}
.guide-body ul{margin-top:14px;padding-left:1.2em;list-style:disc;font-size:14px;line-height:1.85;color:var(--ink-500)}
.guide-body li::marker{color:var(--primary)}
.guide-body li+li{margin-top:4px}

/* ---------- 四步流程 ---------- */
.flow-wrap{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:clamp(24px,3vw,40px);box-shadow:var(--sh-1);
}
.timeline{position:relative;max-width:820px}
.timeline::before{
  content:"";position:absolute;left:15px;top:10px;bottom:18px;
  width:2px;background:var(--primary);opacity:.32;border-radius:2px;
}
.tl-item{position:relative;padding:0 0 30px 52px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:6px;top:6px;
  width:20px;height:20px;border-radius:50%;
  background:var(--surface);border:2px solid var(--accent);
}
.tl-item::after{
  content:"";position:absolute;left:13px;top:13px;
  width:6px;height:6px;border-radius:50%;background:var(--accent);
}
.tl-num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  display:block;font-size:13px;font-weight:700;color:var(--accent);margin-bottom:2px;
}
.tl-item h3{font-size:18px;line-height:1.45;margin-bottom:6px}
.tl-item p{font-size:15px;line-height:1.85;color:var(--ink-700);max-width:680px}
.flow-foot{margin-top:28px;padding-top:20px;border-top:1px solid var(--line);display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.flow-foot span{font-size:14px;color:var(--ink-500)}

/* ---------- 常见问题 ---------- */
.faq{border-top:1px solid var(--line);margin-top:8px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  display:flex;align-items:center;gap:12px;
  min-height:56px;padding:14px 4px;
  font-size:16px;font-weight:700;color:var(--ink-900);
  cursor:pointer;transition:background .18s ease;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::marker{content:""}
.faq .q{
  flex:0 0 24px;width:24px;height:24px;border-radius:6px;
  background:var(--primary-soft);color:var(--primary-press);
  display:grid;place-items:center;font-size:12px;font-weight:800;
}
.faq .plus{
  margin-left:auto;flex:0 0 20px;
  font-size:20px;line-height:1;color:var(--primary);
  transition:transform .2s ease;
}
.faq details[open] summary{background:var(--primary-soft)}
.faq details[open] .plus{transform:rotate(45deg)}
.faq .a{padding:0 4px 20px 40px;font-size:15px;line-height:1.85;color:var(--ink-700)}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink-900);color:#fff;
  border-radius:var(--r-lg);
  padding:clamp(26px,3.6vw,44px);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-70px;
  width:240px;height:240px;border-radius:50%;
  background:rgba(242,85,44,.22);
  filter:blur(6px);pointer-events:none;
}
.cta-band > *{position:relative;z-index:2}
.cta-band p{color:rgba(255,255,255,.72);font-size:15px;line-height:1.8;max-width:560px;margin-top:12px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.backline{margin-top:28px}
.backline a{font-size:14px;font-weight:600;color:var(--ink-900);border-bottom:1px solid var(--primary);padding-bottom:2px}
.backline a:hover{color:var(--primary)}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink-900);color:rgba(255,255,255,.7);padding:56px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;margin-bottom:12px}
.footer-desc{font-size:12px;line-height:1.8;color:rgba(255,255,255,.55);max-width:290px}
.footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px}
.footer-list{display:flex;flex-direction:column;gap:9px;font-size:14px;line-height:1.6}
.footer-list a{color:rgba(255,255,255,.7)}
.footer-list a:hover{color:var(--primary)}
.footer-list span{color:rgba(255,255,255,.55)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  margin-top:36px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;line-height:1.7;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (min-width:992px) and (max-width:1199px){
  :root{--side-w:88px}
  .side{padding:20px 12px 24px;align-items:center}
  .side-logo{padding:4px 0 20px;justify-content:center}
  .side-name{display:none}
  .nav{width:100%;align-items:center}
  .nav-link{width:44px;justify-content:center;padding:0}
  .nav-link span{display:none}
  .side-cta{width:44px;padding:0}
  .side-cta span{display:none}
  .side-note{display:none}
  .guide-row{gap:32px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
}
@media (max-width:991px){
  .side{display:none}
  .shell{margin-left:0}
  .topbar{
    display:flex;align-items:center;gap:12px;
    position:sticky;top:0;z-index:50;
    height:60px;padding:0 14px;
    background:var(--surface);border-bottom:1px solid var(--line);
  }
  .burger{
    width:42px;height:42px;border-radius:10px;
    display:grid;place-items:center;
    background:var(--paper);border:1px solid var(--line);
  }
  .burger span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;position:relative}
  .burger span::before,.burger span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900);border-radius:2px;
  }
  .burger span::before{top:-6px}
  .burger span::after{top:6px}
  .topbar-logo{display:flex;align-items:center;gap:8px;font-size:16px;font-weight:800;color:var(--ink-900);flex:1 1 auto;min-width:0}
  .topbar-logo .brand-mark{width:28px;height:28px;flex:0 0 28px;font-size:14px;border-radius:8px}
  .topbar-logo em{font-style:normal;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .topbar-cta{
    display:inline-flex;align-items:center;justify-content:center;
    height:40px;padding:0 16px;border-radius:10px;
    background:var(--primary);color:#fff;font-size:14px;font-weight:700;flex:0 0 auto;
  }
  .topbar-cta:hover{background:var(--primary-press);color:#fff}
  .drawer{display:flex}
  .container{padding:0 28px}
  .section{padding:64px 0}
  .section-tight{padding:48px 0}
  .footer{padding:44px 0 24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .page-hero{padding:32px 0 40px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:44px 0}
  .section-tight{padding:36px 0}
  .guide-row{grid-template-columns:1fr;gap:18px;padding:26px 0}
  .guide-row.flip .guide-media{order:0}
  .guide-body p{max-width:none}
  .hero-actions .btn{width:100%}
  .hero-meta li{padding:6px 12px;font-size:13px}
  .btn{width:100%}
  .hero-actions,.cta-actions{width:100%}
  .cta-band{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr;gap:22px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .faq .a{padding-left:4px}
  .tl-item{padding-left:44px}
}
@media (max-width:479px){
  body{font-size:15px}
  .page-hero h1{font-size:26px}
  .hero-sub{font-size:15px}
  .hero-note{font-size:13px}
  .tl-item{padding-left:40px}
  .tl-item p,.guide-body p{font-size:14px}
  .guide-body h3{font-size:18px}
  .faq summary{font-size:15px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category3 */
:root{
  --ink-900:#1C1522;
  --ink-700:#3B3143;
  --ink-500:#6B6076;
  --line:#E8E0D6;
  --paper:#FBF7F2;
  --surface:#FFFFFF;
  --primary:#F2552C;
  --primary-press:#D6431E;
  --primary-soft:#FFEDE6;
  --accent:#12876F;
  --accent-soft:#E4F5F0;
  --danger:#D0342C;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(28,21,34,.05);
  --sh-2:0 8px 20px rgba(28,21,34,.07);
  --sh-3:0 16px 40px rgba(28,21,34,.10);
  --sidebar-w:244px;
  --ease:180ms ease;
  --num-font:"DIN Alternate","Barlow","PingFang SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-700);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;object-fit:cover}
a{color:var(--ink-900);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--primary)}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:var(--primary-soft);color:var(--primary-press)}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(242,85,44,.35);border-radius:6px}

/* ============ 侧栏 App Shell ============ */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--ink-900);
  padding:22px 16px 18px;
  display:flex;flex-direction:column;
  overflow-y:auto;z-index:60;
}
.brand{display:flex;align-items:center;gap:10px;padding:4px 8px 20px;color:#fff}
.brand-mark{
  width:32px;height:32px;flex:none;border-radius:9px;
  background:var(--primary);color:#fff;
  display:grid;place-items:center;
  font-size:16px;font-weight:800;line-height:1;
}
.brand-name{font-size:17px;font-weight:800;color:#fff;line-height:1.3}
.nav{display:flex;flex-direction:column;gap:4px;margin-top:8px}
.nav-link{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:10px;
  color:rgba(255,255,255,.72);font-size:14.5px;font-weight:600;
  transition:background var(--ease),color var(--ease);
}
.nav-link svg{
  width:20px;height:20px;flex:none;
  fill:none;stroke:currentColor;stroke-width:1.75;
  stroke-linecap:round;stroke-linejoin:round;
}
.nav-link:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-link.is-active{background:rgba(242,85,44,.16);color:#fff;font-weight:700}
.nav-link.is-active::before{
  content:"";position:absolute;left:-16px;top:9px;bottom:9px;width:3px;
  border-radius:0 3px 3px 0;background:var(--primary);
}
.side-sep{height:1px;background:rgba(255,255,255,.10);margin:18px 4px}
.side-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  width:100%;height:44px;border-radius:10px;
  background:var(--primary);color:#fff;font-size:14.5px;font-weight:700;
  box-shadow:0 6px 18px rgba(242,85,44,.24);
  transition:background var(--ease),transform var(--ease);
}
.side-cta:hover{background:var(--primary-press);color:#fff;transform:translateY(-1px)}
.side-cta:active{transform:translateY(0)}
.cta-mini{display:none}
.side-note{margin-top:auto;padding:20px 8px 4px;font-size:13px;line-height:1.7;color:rgba(255,255,255,.48)}
.side-note strong{display:block;color:rgba(255,255,255,.72);font-weight:600;margin-bottom:4px}

/* ============ 顶部移动栏 ============ */
.topbar{
  display:none;position:sticky;top:0;z-index:55;
  height:60px;align-items:center;gap:12px;
  padding:0 16px;background:var(--surface);
  border-bottom:1px solid var(--line);
}
.menu-btn{
  width:44px;height:44px;display:grid;place-items:center;
  border-radius:10px;color:var(--ink-900);
  transition:background var(--ease);
}
.menu-btn:hover{background:var(--primary-soft)}
.menu-btn svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round}
.topbar-brand{display:flex;align-items:center;gap:8px;font-size:16px;font-weight:800;color:var(--ink-900);flex:1;min-width:0}
.topbar-brand .brand-mark{width:28px;height:28px;border-radius:8px;font-size:14px}
.topbar-cta{
  height:38px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--primary);color:#fff;font-size:13.5px;font-weight:700;
  display:inline-flex;align-items:center;
}
.topbar-cta:hover{background:var(--primary-press);color:#fff}

/* ============ 抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(28,21,34,.45);
  z-index:80;opacity:0;transition:opacity var(--ease);
}
.drawer-mask.is-open{opacity:1}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:300px;max-width:86vw;
  background:var(--ink-900);z-index:81;
  padding:20px 16px;display:flex;flex-direction:column;
  transform:translateX(-102%);
  transition:transform 220ms ease;
  box-shadow:var(--sh-3);overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:0 4px 16px}
.drawer-close{
  width:44px;height:44px;display:grid;place-items:center;border-radius:10px;
  color:rgba(255,255,255,.7);transition:background var(--ease),color var(--ease);
}
.drawer-close:hover{background:rgba(255,255,255,.08);color:#fff}
.drawer-close svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}
.drawer .side-cta{margin-top:18px}
.drawer .side-sep{margin:16px 4px}

/* ============ 主内容 ============ */
.shell{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
main{flex:1}
.container{
  width:100%;max-width:1160px;margin:0 auto;
  padding:0 40px;
}
.section{padding:88px 0}
.section--tight{padding:56px 0}
.section--ink{background:var(--ink-900);color:rgba(255,255,255,.76)}
.section--ink .h2{color:#fff}
.section--ink .lead{color:rgba(255,255,255,.66)}

.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-500);margin-bottom:16px;
}
.breadcrumb a{color:var(--ink-500)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--ink-700);font-weight:600}

.page-head{
  position:relative;
  padding:52px 0 44px;
  background:
    linear-gradient(rgba(28,21,34,.05) 1px,transparent 1px) 0 0/28px 28px,
    linear-gradient(90deg,rgba(28,21,34,.05) 1px,transparent 1px) 0 0/28px 28px,
    var(--paper);
  border-bottom:1px solid var(--line);
}
.page-head h1{
  font-size:clamp(28px,3.4vw,44px);
  font-weight:800;line-height:1.22;letter-spacing:0;
  color:var(--ink-900);
}
.page-head .head-sub{
  margin-top:24px;font-size:14px;line-height:1.7;color:var(--ink-500);max-width:720px;
}
.stat-row{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:0;margin-top:28px;border-top:1px solid var(--line);
  max-width:720px;
}
.stat{
  padding:18px 20px 4px 0;
  border-right:1px dashed var(--line);
}
.stat:last-child{border-right:none}
.stat b{
  display:block;
  font-family:var(--num-font);
  font-variant-numeric:tabular-nums;
  font-size:clamp(24px,2.6vw,32px);font-weight:800;
  color:var(--ink-900);line-height:1.2;
}
.stat span{display:block;font-size:13px;color:var(--ink-500);margin-top:4px}
.stat b em{font-style:normal;color:var(--primary);font-size:.6em;margin-left:2px}

.h2{
  position:relative;
  font-size:clamp(22px,2.2vw,30px);
  font-weight:700;line-height:1.32;color:var(--ink-900);
  padding-left:14px;
}
.h2::before{
  content:"";position:absolute;left:0;top:.2em;
  width:4px;height:.9em;border-radius:2px;background:var(--primary);
}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;flex-wrap:wrap;margin-bottom:22px;
}
.sec-index{
  font-family:var(--num-font);font-variant-numeric:tabular-nums;
  font-size:13px;font-weight:700;color:var(--ink-500);letter-spacing:.04em;
}
.link-more{
  font-size:14px;font-weight:600;color:var(--ink-900);
  border-bottom:2px solid var(--primary);padding-bottom:2px;
}
.link-more:hover{color:var(--primary)}
.lead{
  font-size:15px;line-height:1.85;color:var(--ink-700);
  max-width:760px;margin-top:20px;
}
.note{font-size:13px;line-height:1.7;color:var(--ink-500)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:10px;
  font-size:15px;font-weight:700;line-height:1;
  transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 14px rgba(242,85,44,.22)}
.btn-primary:hover{background:var(--primary-press);color:#fff;transform:translateY(-1px);box-shadow:0 6px 18px rgba(242,85,44,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;color:var(--ink-900);border:1.5px solid var(--ink-900)}
.btn-ghost:hover{background:var(--primary-soft);color:var(--ink-900);border-color:var(--primary)}
.btn-on-ink{background:#fff;color:var(--ink-900)}
.btn-on-ink:hover{background:var(--primary-soft);color:var(--primary-press)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ 筛选 chip ============ */
.chip-scroll{
  margin-top:26px;overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:none;
}
.chip-scroll::-webkit-scrollbar{display:none}
.chip-row{display:flex;gap:10px;min-width:max-content;padding-bottom:2px}
.chip{
  display:inline-flex;align-items:center;
  height:38px;padding:0 16px;border-radius:var(--r-pill);
  background:var(--surface);border:1px solid var(--line);
  font-size:13.5px;font-weight:600;color:var(--ink-700);
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.chip:hover{border-color:rgba(242,85,44,.45);color:var(--primary-press);background:var(--primary-soft)}
.chip.is-active{background:var(--primary);border-color:var(--primary);color:#fff}
.chip.is-active:hover{background:var(--primary-press);border-color:var(--primary-press);color:#fff}

/* ============ 瀑布流图墙 ============ */
.wall{column-count:3;column-gap:24px;margin-top:26px}
.shot{
  break-inside:avoid;
  margin:0 0 24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:box-shadow var(--ease),border-color var(--ease),transform var(--ease);
}
.shot:hover{
  box-shadow:var(--sh-2);
  border-color:rgba(242,85,44,.35);
  transform:translateY(-2px);
}
.shot-media{overflow:hidden;background:var(--paper)}
.shot-media img{width:100%;height:100%;transition:transform .38s ease}
.shot:hover .shot-media img{transform:scale(1.04)}
.ar-43 img{aspect-ratio:4/3}
.ar-34 img{aspect-ratio:3/4}
.ar-169 img{aspect-ratio:16/9}
.ar-32 img{aspect-ratio:3/2}
.ar-11 img{aspect-ratio:1/1}
.shot-body{padding:14px 16px 16px}
.shot-cap{
  font-size:13px;line-height:1.6;color:var(--ink-700);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;margin-bottom:10px;
  transition:color var(--ease);
}
.shot:hover .shot-cap{color:var(--primary-press)}
.tag-square{
  display:inline-block;
  font-size:11px;font-weight:600;line-height:1.6;
  padding:1px 6px;border-radius:4px;
  border:1px solid var(--line);background:var(--paper);color:var(--ink-500);
}
.tag-square.accent{border-color:rgba(18,135,111,.3);background:var(--accent-soft);color:var(--accent)}

/* ============ 深色精选 ============ */
.pick-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr;
  gap:24px;margin-top:30px;
}
.pick{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  background:#2A2233;border:1px solid rgba(255,255,255,.08);
  transition:transform var(--ease),border-color var(--ease);
}
.pick:hover{transform:translateY(-3px);border-color:rgba(242,85,44,.5)}
.pick img{width:100%;height:100%;aspect-ratio:4/3;transition:transform .38s ease}
.pick:first-child img{aspect-ratio:16/10}
.pick:hover img{transform:scale(1.03)}
.pick-body{
  position:absolute;left:0;right:0;bottom:0;
  padding:36px 18px 16px;
  background:linear-gradient(to top,rgba(20,15,26,.92),rgba(20,15,26,.55) 55%,rgba(20,15,26,0));
}
.pick-body h3{font-size:18px;font-weight:700;color:#fff;line-height:1.45}
.pick-body p{font-size:13px;color:rgba(255,255,255,.68);margin-top:4px;line-height:1.6}

/* ============ 更新节奏 ============ */
.rhythm{
  margin-top:28px;border-top:1px solid var(--line);
}
.rhythm-item{
  display:grid;grid-template-columns:150px 1fr auto;
  gap:20px;align-items:center;
  padding:20px 0;border-bottom:1px solid var(--line);
}
.rhythm-item:last-child{border-bottom:none}
.rhythm-time{
  font-family:var(--num-font);font-variant-numeric:tabular-nums;
  font-size:14px;font-weight:700;color:var(--ink-900);
}
.rhythm-text{font-size:14.5px;line-height:1.7;color:var(--ink-700)}
.rhythm-tag{
  font-size:12px;font-weight:600;padding:3px 10px;border-radius:var(--r-pill);
  background:var(--primary-soft);color:var(--primary-press);white-space:nowrap;
}

/* ============ CTA ============ */
.cta-band{
  background:var(--primary-soft);
  border-top:1px solid rgba(242,85,44,.18);
  border-bottom:1px solid rgba(242,85,44,.18);
  padding:64px 0;
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:28px;flex-wrap:wrap;
}
.cta-inner h2{
  font-size:clamp(22px,2.2vw,28px);font-weight:800;color:var(--ink-900);line-height:1.35;
}
.cta-inner p{margin-top:10px;font-size:14.5px;line-height:1.75;color:var(--ink-700);max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 返回文字链 ============ */
.back-row{padding:36px 0 0}
.back-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--ink-900);
  border-bottom:2px solid var(--primary);padding-bottom:3px;
}
.back-link:hover{color:var(--primary)}
.back-link svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ============ 页脚 ============ */
.footer{background:var(--ink-900);color:rgba(255,255,255,.62);padding:56px 0 22px;margin-top:64px}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:36px;
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-size:16px;font-weight:800;margin-bottom:14px;
}
.footer-desc{font-size:12.5px;line-height:1.8;color:rgba(255,255,255,.5);max-width:320px}
.footer h4{
  font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;
}
.footer-list{display:flex;flex-direction:column;gap:9px}
.footer-list a,.footer-list span{font-size:13.5px;color:rgba(255,255,255,.6)}
.footer-list a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:40px;padding-top:18px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.45);
}

/* ============ 响应式 ============ */
@media (max-width:1439px){
  .container{padding:0 36px}
}
@media (max-width:1199px){
  :root{--sidebar-w:88px}
  .sidebar{padding:20px 10px}
  .brand{justify-content:center;padding:4px 0 18px}
  .brand-name{display:none}
  .nav-link{justify-content:center;padding:0}
  .nav-link span{display:none}
  .nav-link.is-active::before{left:-10px;top:8px;bottom:8px}
  .side-cta{padding:0;font-size:0;gap:0}
  .side-cta .cta-full{display:none}
  .side-cta .cta-mini{display:block;font-size:14px;font-weight:800;line-height:1}
  .side-note{display:none}
  .nav-link::after{
    content:attr(data-label);
    position:absolute;left:calc(100% + 14px);top:50%;
    transform:translateY(-50%) scale(.96);
    background:var(--ink-900);color:#fff;
    padding:6px 10px;border-radius:8px;
    font-size:13px;font-weight:600;white-space:nowrap;
    opacity:0;pointer-events:none;z-index:70;
    box-shadow:var(--sh-2);
    transition:opacity 150ms ease,transform 150ms ease;
  }
  .nav-link:hover::after,.nav-link:focus-visible::after{opacity:1;transform:translateY(-50%) scale(1)}
  .wall{column-count:2}
  .pick-grid{grid-template-columns:1fr 1fr}
  .pick:first-child{grid-column:1/-1}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
  .footer-grid > div:last-child{grid-column:1/-1}
}
@media (max-width:991px){
  .sidebar{display:none}
  .shell{margin-left:0}
  .topbar{display:flex}
  .container{padding:0 28px}
  .section{padding:64px 0}
  .page-head{padding:38px 0 34px}
  .wall{column-count:2;column-gap:18px}
  .shot{margin-bottom:18px}
  .rhythm-item{grid-template-columns:120px 1fr;gap:12px}
  .rhythm-tag{grid-column:2;justify-self:start;margin-top:-6px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:44px 0}
  .section--tight{padding:36px 0}
  .stat-row{grid-template-columns:1fr;border-top:none;margin-top:22px}
  .stat{border-right:none;border-bottom:1px dashed var(--line);padding:14px 0 10px}
  .stat:last-child{border-bottom:none}
  .wall{column-count:2;column-gap:14px}
  .shot{margin-bottom:14px;border-radius:10px}
  .shot-body{padding:10px 12px 12px}
  .pick-grid{grid-template-columns:1fr;gap:16px}
  .pick:first-child{grid-column:auto}
  .pick img,.pick:first-child img{aspect-ratio:16/10}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-grid > div:last-child{grid-column:auto}
  .footer-bottom{flex-direction:column;gap:8px}
  .btn{width:100%}
  .back-row{padding:28px 0 0}
}
@media (max-width:520px){
  .page-head h1{font-size:26px}
  .h2{font-size:21px;padding-left:12px}
  .wall{column-count:1}
  .lead{font-size:14px}
  .chip{height:36px;padding:0 14px;font-size:13px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .shot:hover,.pick:hover,.btn:hover,.side-cta:hover{transform:none!important}
}

/* roulang page: category4 */
:root{
  --ink-900:#1C1522;
  --ink-700:#3B3143;
  --ink-500:#6B6076;
  --line:#E8E0D6;
  --paper:#FBF7F2;
  --surface:#FFFFFF;
  --primary:#F2552C;
  --primary-press:#D6431E;
  --primary-soft:#FFEDE6;
  --accent:#12876F;
  --accent-soft:#E4F5F0;
  --danger:#D0342C;
  --radius-sm:8px;
  --radius-md:12px;
  --radius-lg:16px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(28,21,34,.05);
  --shadow-2:0 8px 20px rgba(28,21,34,.07);
  --shadow-3:0 16px 40px rgba(28,21,34,.10);
  --font:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --num:"DIN Alternate","Barlow",ui-monospace,"SFMono-Regular",monospace;
  --sidebar-w:244px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-700);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.drawer-open{overflow:hidden}
h1,h2,h3,h4{margin:0;color:var(--ink-900);letter-spacing:0}
p{margin:0}
img{display:block;max-width:100%}
a{color:var(--ink-900);text-decoration:none}
a:hover{color:var(--primary-press)}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(242,85,44,.35);outline-offset:2px;border-radius:4px}
.num{font-family:var(--num);font-variant-numeric:tabular-nums}

.container{width:100%;max-width:1160px;margin:0 auto;padding:0 40px}

/* ===== 左侧 App Shell ===== */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;z-index:60;
  width:var(--sidebar-w);
  display:flex;flex-direction:column;
  padding:24px 16px 20px;
  background:var(--ink-900);
  box-shadow:1px 0 0 rgba(255,255,255,.06);
  transition:transform .26s ease;
}
.brand{display:flex;align-items:center;gap:10px;padding:0 6px;color:#fff}
.brand:hover{color:#fff}
.brand-mark{
  flex:none;display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:8px;
  background:var(--primary);color:#fff;
  font-size:16px;font-weight:800;line-height:1;
}
.brand-name{font-size:17px;font-weight:800;line-height:1.3;white-space:nowrap}
.nav{display:flex;flex-direction:column;gap:4px;margin-top:26px}
.nav-link{
  position:relative;
  display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:10px;
  color:rgba(255,255,255,.76);
  font-size:14.5px;font-weight:600;
  transition:background .18s ease,color .18s ease;
}
.nav-link svg{flex:none;width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.nav-link:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-link.is-active{background:rgba(255,237,230,.14);color:#fff;font-weight:700}
.nav-link.is-active::before{
  content:"";position:absolute;left:0;top:11px;bottom:11px;
  width:3px;border-radius:3px;background:var(--primary);
}
.sidebar-divider{height:1px;margin:20px 6px;background:rgba(255,255,255,.12)}
.sidebar-cta{width:100%;min-height:44px}
.cta-short{display:none;font-size:15px;font-weight:800;line-height:1}
.sidebar-note{
  margin-top:auto;padding:16px 8px 0;
  font-size:13px;line-height:1.7;color:rgba(255,255,255,.46);
}

/* ===== 移动端顶栏 ===== */
.topbar{
  display:none;position:sticky;top:0;z-index:50;
  align-items:center;gap:12px;height:60px;padding:0 16px;
  background:var(--surface);border-bottom:1px solid var(--line);
}
.hamburger{
  flex:none;display:inline-flex;flex-direction:column;justify-content:center;gap:4px;
  width:44px;height:44px;padding:0 10px;
  background:transparent;border:1px solid var(--line);border-radius:10px;cursor:pointer;
}
.hamburger span{display:block;height:2px;border-radius:2px;background:var(--ink-900);transition:transform .2s ease,opacity .2s ease}
.hamburger:active span:nth-child(1){transform:translateY(2px)}
.topbar-brand{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:800;color:var(--ink-900);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-brand .brand-mark{width:26px;height:26px;font-size:13px;border-radius:7px}
.topbar-cta{margin-left:auto;min-height:36px;padding:0 14px;font-size:13.5px;border-radius:9px}
.drawer-mask{
  position:fixed;inset:0;z-index:55;
  background:rgba(28,21,34,.45);
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;
}
body.drawer-open .drawer-mask{opacity:1;visibility:visible}

/* ===== 主区域 ===== */
.main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}

/* ===== 按钮 / 徽章 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;
  border:1.5px solid transparent;border-radius:10px;
  font-size:15px;font-weight:700;line-height:1.2;
  cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--primary-press);color:#fff;transform:translateY(-1px);box-shadow:0 6px 18px rgba(242,85,44,.28)}
.btn-primary:active{transform:none;box-shadow:none}
.btn-ghost{border-color:var(--ink-900);background:transparent;color:var(--ink-900)}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--ink-900);color:var(--ink-900)}
.btn-ghost:active{transform:translateY(1px)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--radius-pill);
  background:var(--primary-soft);color:var(--primary-press);
  font-size:12px;font-weight:600;line-height:1.7;
}
.badge-accent{background:var(--accent-soft);color:var(--accent)}

/* ===== 页头横幅 ===== */
.page-hero{position:relative;overflow:hidden;background:var(--ink-900);isolation:isolate}
.page-hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.42;z-index:-2}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(100deg,rgba(28,21,34,.94) 0%,rgba(28,21,34,.80) 52%,rgba(28,21,34,.48) 100%);
}
.page-hero .container{position:relative;padding-top:48px;padding-bottom:76px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:18px;font-size:13px;color:rgba(255,255,255,.62)}
.breadcrumb a{color:rgba(255,255,255,.84)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{color:rgba(255,255,255,.38)}
.page-hero h1{
  max-width:820px;color:#fff;
  font-size:clamp(28px,3.4vw,44px);
  font-weight:800;line-height:1.22;
}
.page-lede{margin-top:18px;max-width:720px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.80)}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--radius-pill);
  border:1px solid rgba(255,255,255,.26);
  background:rgba(255,255,255,.10);
  color:rgba(255,255,255,.88);
  font-size:13px;line-height:1.5;
}
.chip strong{font-family:var(--num);font-weight:700;color:#fff;letter-spacing:.01em}

/* ===== 快捷提示条 ===== */
.quick-tips{
  position:relative;z-index:3;
  display:grid;grid-template-columns:repeat(3,1fr);
  margin-top:-34px;
  background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.tip{padding:22px 26px;border-right:1px solid var(--line)}
.tip:last-child{border-right:0}
.tip-label{display:block;font-size:12px;font-weight:700;color:var(--primary-press);letter-spacing:.02em;margin-bottom:6px}
.tip p{font-size:14px;line-height:1.75;color:var(--ink-700)}

/* ===== 内容区 ===== */
.page-body{flex:1 0 auto;padding-bottom:20px}
.faq-layout{
  display:grid;grid-template-columns:220px minmax(0,1fr);
  gap:48px;align-items:start;
  padding-top:64px;
}
.toc{position:sticky;top:32px}
.toc-title{margin-bottom:12px;font-size:12px;font-weight:700;color:var(--ink-500);letter-spacing:.08em}
.toc-nav{display:flex;flex-direction:column;border-left:1px solid var(--line)}
.toc-nav a{
  display:block;margin-left:-1px;padding:9px 0 9px 14px;
  border-left:2px solid transparent;
  font-size:14px;font-weight:600;color:var(--ink-700);
  transition:color .18s ease,background .18s ease,border-color .18s ease;
}
.toc-nav a:hover{color:var(--primary-press);background:var(--primary-soft)}
.toc-nav a.is-current{color:var(--primary-press);border-left-color:var(--primary);background:var(--primary-soft)}
.faq-groups{porder:0}
.faq-group{margin-bottom:56px}
.faq-group:last-child{margin-bottom:0}
.h2-bar{
  position:relative;padding-left:16px;
  font-size:clamp(22px,2.2vw,30px);font-weight:700;line-height:1.32;
}
.h2-bar::before{content:"";position:absolute;left:0;top:.16em;width:4px;height:.9em;border-radius:2px;background:var(--primary)}
.group-note{margin-top:10px;margin-left:16px;font-size:14px;line-height:1.7;color:var(--ink-500)}
.faq-list{margin-top:22px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;gap:12px;
  min-height:56px;padding:10px 12px;
  border-radius:var(--radius-sm);
  list-style:none;cursor:pointer;
  font-size:15.5px;font-weight:700;color:var(--ink-900);
  transition:background .18s ease,color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::marker{content:""}
.faq-item summary:hover{background:var(--primary-soft)}
.faq-q{
  flex:none;display:inline-flex;align-items:center;justify-content:center;
  min-width:34px;height:24px;padding:0 6px;border-radius:6px;
  background:var(--primary-soft);color:var(--primary-press);
  font-family:var(--num);font-size:12px;font-weight:700;line-height:1;
}
.faq-ico{flex:none;margin-left:auto;width:18px;height:18px;fill:none;stroke:var(--ink-500);stroke-width:2;stroke-linecap:round;transition:transform .2s ease,stroke .2s ease}
.faq-item[open] summary{background:var(--primary-soft)}
.faq-item[open] .faq-q{background:#fff}
.faq-item[open] .faq-ico{transform:rotate(45deg);stroke:var(--primary-press)}
.faq-a{padding:2px 12px 20px 58px;font-size:15px;line-height:1.85;color:var(--ink-700)}

/* ===== 反馈区 ===== */
.feedback-band{padding:8px 0 88px}
.feedback-card{
  display:grid;grid-template-columns:1.15fr .85fr;
  background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.feedback-text{padding:40px 40px 36px}
.feedback-text h2{margin-top:14px}
.feedback-text p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--ink-700);max-width:520px}
.feedback-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.feedback-meta{margin-top:18px;font-size:12.5px;color:var(--ink-500);line-height:1.7}
.feedback-media{position:relative;min-height:260px;background:var(--paper)}
.feedback-media img{width:100%;height:100%;object-fit:cover}

/* ===== 页脚 ===== */
.footer{flex:none;background:var(--ink-900);color:rgba(255,255,255,.72);padding:56px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:800}
.footer-desc{margin-top:14px;max-width:320px;font-size:12px;line-height:1.9;color:rgba(255,255,255,.52)}
.footer h4{margin-bottom:14px;font-size:14px;font-weight:700;color:#fff}
.footer-list{display:flex;flex-direction:column;gap:10px;font-size:13.5px;color:rgba(255,255,255,.66)}
.footer-list a{color:rgba(255,255,255,.72);transition:color .18s ease}
.footer-list a:hover{color:var(--primary)}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  margin-top:36px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,255,255,.48);
}

/* ===== 断点 ===== */
@media (max-width:1199px){
  :root{--sidebar-w:88px}
  .sidebar{padding:20px 12px 18px}
  .brand{justify-content:center;padding:0}
  .brand-name{display:none}
  .nav-link{justify-content:center;padding:0}
  .nav-link span{display:none}
  .nav-link.is-active::before{left:-6px}
  .sidebar-divider{margin:18px 2px}
  .sidebar-cta{padding:0;width:44px;min-height:44px;margin:0 auto}
  .sidebar-cta .cta-label{display:none}
  .sidebar-cta .cta-short{display:inline}
  .sidebar-note{display:none}
}
@media (max-width:1023px){
  .container{padding:0 28px}
  .faq-layout{grid-template-columns:1fr;gap:30px;padding-top:48px}
  .toc{position:static}
  .toc-title{display:none}
  .toc-nav{
    flex-direction:row;gap:8px;border-left:0;
    overflow-x:auto;padding-bottom:8px;
    scrollbar-width:thin;
  }
  .toc-nav a{
    flex:none;margin-left:0;padding:8px 14px;white-space:nowrap;
    border:1px solid var(--line);border-radius:var(--radius-pill);
    background:var(--surface);font-size:13.5px;
  }
  .toc-nav a.is-current{border-color:rgba(242,85,44,.45)}
  .quick-tips{grid-template-columns:1fr;margin-top:-28px}
  .tip{border-right:0;border-bottom:1px solid var(--line)}
  .tip:last-child{border-bottom:0}
  .feedback-card{grid-template-columns:1fr}
  .feedback-media{min-height:220px;order:-1}
  .feedback-text{padding:32px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:991px){
  .sidebar{
    width:300px;padding:24px 16px 20px;
    transform:translateX(-100%);
    box-shadow:var(--shadow-3);
    z-index:60;
  }
  body.drawer-open .sidebar{transform:none}
  .sidebar .brand{justify-content:flex-start;padding:0 6px}
  .sidebar .brand-name{display:inline}
  .sidebar .nav-link{justify-content:flex-start;padding:0 12px}
  .sidebar .nav-link span{display:inline}
  .sidebar .nav-link.is-active::before{left:0}
  .sidebar-cta{width:100%;padding:0 22px;margin:0}
  .sidebar-cta .cta-label{display:inline}
  .sidebar-cta .cta-short{display:none}
  .sidebar-note{display:block}
  .main{margin-left:0}
  .topbar{display:flex}
  .page-hero .container{padding-top:32px;padding-bottom:64px}
  .feedback-band{padding-bottom:60px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .page-lede{font-size:14.5px}
  .hero-chips{gap:8px;margin-top:20px}
  .chip{font-size:12.5px;padding:7px 12px}
  .faq-item summary{font-size:15px;gap:10px}
  .faq-a{padding-left:16px;padding-right:4px;font-size:14.5px}
  .faq-group{margin-bottom:44px}
  .feedback-text{padding:28px 22px}
  .feedback-actions .btn{width:100%}
  .footer{padding:44px 0 24px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-desc{max-width:none}
  .footer-bottom{font-size:12.5px}
}
@media (max-width:479px){
  body{font-size:15px}
  .page-hero h1{font-size:26px}
  .tip{padding:18px 20px}
  .feedback-text h2{font-size:20px}
  .btn{min-height:46px;padding:0 18px;font-size:14.5px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}