/* roulang page: index */
:root{
  --brand-ink:#14101C;
  --brand-beat:#C9F24D;
  --brand-pulse:#FF5A2E;
  --brand-focus:#5B3DF5;
  --bg:#FBFAF7;
  --bg-alt:#F1EFE9;
  --surface:#FFFFFF;
  --text:#1B1723;
  --text-2:#5A5566;
  --line:#E4E1DA;
  --ok:#1FA97A;
  --warn:#D64545;
  --radius-card:16px;
  --radius-img:14px;
  --radius-input:10px;
  --shadow-sm:0 1px 2px rgba(20,16,28,.06), 0 8px 24px -12px rgba(20,16,28,.12);
  --shadow-hover:0 12px 32px -10px rgba(20,16,28,.20);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sec-pad:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  font-feature-settings:"tnum";
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-focus);outline-offset:2px;border-radius:4px}
.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}

/* ---------- 通用容器 / 排版 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--sec-pad) 0;position:relative}
.section--alt{background:var(--bg-alt)}
.section--tight{padding-top:72px}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--text-2);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow i{display:block;width:4px;border-radius:2px;background:var(--brand-beat)}
.eyebrow i:nth-child(1){height:10px}
.eyebrow i:nth-child(2){height:16px}
.eyebrow i:nth-child(3){height:12px}
h1{font-size:46px;line-height:1.2;font-weight:800;letter-spacing:-.02em;color:var(--brand-ink)}
h2{font-size:32px;line-height:1.28;font-weight:700;letter-spacing:-.01em;color:var(--brand-ink)}
h3{font-size:20px;line-height:1.4;font-weight:600;color:var(--brand-ink)}
.lead{font-size:17px;color:var(--text-2);line-height:1.8}
.muted{color:var(--text-2);font-size:14px}
.sec-note{font-size:14px;color:var(--text-2);margin-top:18px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1;cursor:pointer;
  transition:transform .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn-pulse{background:var(--brand-pulse);color:#fff;box-shadow:0 8px 20px -10px rgba(255,90,46,.65)}
.btn-pulse:hover{background:#F04A1E;transform:translateY(-2px);box-shadow:0 14px 28px -12px rgba(255,90,46,.75)}
.btn-pulse:active{transform:translateY(0);background:#DC4118}
.btn-ink{background:var(--brand-ink);color:#fff}
.btn-ink:hover{background:#241C31;transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.btn-ink:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--brand-ink);border-color:var(--line);background-color:#fff}
.btn-outline:hover{background:var(--brand-ink);color:#fff;border-color:var(--brand-ink);transform:translateY(-2px)}
.btn-lime{background:var(--brand-beat);color:var(--brand-ink)}
.btn-lime:hover{background:#D6FA66;transform:translateY(-2px);box-shadow:0 14px 28px -14px rgba(201,242,77,.9)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-ink);transition:color .2s var(--ease),gap .2s var(--ease)}
.link-arrow:hover{color:var(--brand-pulse);gap:10px}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;font-size:13px;font-weight:600;line-height:1.4}
.badge-free{background:transparent;border:1px solid var(--line);color:var(--text-2)}
.badge-hot{background:var(--brand-beat);color:var(--brand-ink)}
.badge-level{background:var(--brand-ink);color:var(--brand-beat)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 24px -16px rgba(20,16,28,.35)}
.hd-inner{display:flex;align-items:center;gap:20px;height:72px;max-width:1200px;margin:0 auto;padding:0 24px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--brand-ink);white-space:nowrap}
.logo-mark{
  width:32px;height:32px;border-radius:10px;background:var(--brand-ink);
  display:inline-flex;align-items:flex-end;justify-content:center;gap:3px;padding:8px 0 7px;flex:none;
}
.logo-mark i{display:block;width:3px;border-radius:2px;background:var(--brand-beat)}
.logo-mark i:nth-child(1){height:7px}
.logo-mark i:nth-child(2){height:13px}
.logo-mark i:nth-child(3){height:10px}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px;flex:1}
.nav-link{
  position:relative;padding:9px 13px;border-radius:999px;font-size:15px;color:var(--text-2);
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-link:hover{color:var(--brand-ink);background:var(--bg-alt)}
.nav-link.is-active{color:var(--brand-ink);font-weight:700;background:#F4FBDF}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:var(--brand-beat);
}
.hd-tools{display:flex;align-items:center;gap:14px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;background:var(--bg-alt);border:1.5px solid transparent;
  border-radius:999px;padding:9px 16px;transition:border-color .2s var(--ease),background-color .2s var(--ease);
}
.search-box:focus-within{border-color:var(--brand-beat);background:#fff}
.search-box svg{width:16px;height:16px;stroke:var(--text-2);fill:none;stroke-width:1.8}
.search-box input{
  border:0;background:transparent;outline:none;font-size:14px;width:180px;color:var(--text);
}
.search-box input::placeholder{color:#9C97A6}
.burger{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;
  cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-ink);transition:transform .2s var(--ease)}

/* 移动端抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(20,16,28,.5);opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s;z-index:90}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);background:#fff;z-index:100;
  transform:translateX(102%);transition:transform .3s var(--ease);
  padding:22px 22px 32px;overflow-y:auto;display:flex;flex-direction:column;gap:20px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-hd{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;font-size:20px;line-height:1;color:var(--brand-ink);cursor:pointer}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{padding:13px 14px;border-radius:12px;font-size:16px;color:var(--text);transition:background-color .2s var(--ease)}
.drawer-nav a:hover,.drawer-nav a.is-active{background:#F4FBDF;color:var(--brand-ink);font-weight:700}

/* ---------- Hero ---------- */
.hero{position:relative;padding:68px 0 84px;background:
  radial-gradient(circle at 10% 4%, rgba(201,242,77,.28) 0%, rgba(251,250,247,0) 52%),
  radial-gradient(circle at 92% 90%, rgba(91,61,245,.08) 0%, rgba(251,250,247,0) 46%),
  var(--bg);
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(20,16,28,.07) 1px, transparent 1px);
  background-size:20px 20px;opacity:.55;
  mask-image:linear-gradient(180deg, rgba(0,0,0,.9), transparent 78%);
  -webkit-mask-image:linear-gradient(180deg, rgba(0,0,0,.9), transparent 78%);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center}
.hero-copy h1{margin-bottom:20px}
.hero-copy .lead{font-size:18px;max-width:560px}
.hero-tagline{display:flex;align-items:center;gap:12px;margin-bottom:18px;flex-wrap:wrap}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-foot{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;font-size:14px;color:var(--text-2)}
.hero-foot span{display:inline-flex;align-items:center;gap:8px}
.hero-foot span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-beat)}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:5/4;object-fit:cover;border-radius:20px;
  box-shadow:0 24px 60px -28px rgba(20,16,28,.5);
}
.hero-media::after{
  content:"";position:absolute;inset:auto -14px -14px auto;width:120px;height:120px;border-radius:20px;
  border:2px solid var(--brand-beat);z-index:-1;
}
.beat-bars{position:absolute;left:24px;bottom:24px;display:flex;align-items:flex-end;gap:6px;padding:10px 12px;border-radius:12px;background:rgba(20,16,28,.72);backdrop-filter:blur(4px)}
.beat-bars span{display:block;width:5px;border-radius:3px;background:var(--brand-beat);transform-origin:bottom;animation:beat 1.5s var(--ease) infinite}
.beat-bars span:nth-child(1){height:12px;animation-delay:0s}
.beat-bars span:nth-child(2){height:22px;animation-delay:.18s}
.beat-bars span:nth-child(3){height:16px;animation-delay:.36s}
@keyframes beat{0%,100%{transform:scaleY(.55)}50%{transform:scaleY(1)}}
.badge-365{
  position:absolute;top:20px;right:20px;width:66px;height:66px;border-radius:50%;
  background:var(--brand-ink);color:var(--brand-beat);
  display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:800;letter-spacing:-.02em;
  box-shadow:0 10px 26px -12px rgba(20,16,28,.7);
}

/* ---------- 数据带 ---------- */
.stat-strip{position:relative;z-index:3;margin-top:-38px}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 22px;box-shadow:var(--shadow-sm);transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.stat:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.stat .num{font-size:32px;font-weight:800;color:var(--brand-ink);letter-spacing:-.03em;line-height:1.2}
.stat .num em{font-style:normal;font-size:16px;font-weight:700;color:var(--brand-pulse);margin-left:4px}
.stat .txt{font-size:14px;color:var(--text-2);margin-top:6px}

/* ---------- 权益对比 ---------- */
.plan-wrap{border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--surface)}
.plan-table{width:100%;border-collapse:collapse;margin:0}
.plan-table th,.plan-table td{padding:18px 20px;border-bottom:1px solid var(--line);font-size:15px;text-align:center;vertical-align:middle}
.plan-table thead th{background:#FCFBF8;font-size:16px;font-weight:700;color:var(--brand-ink);padding-top:24px;padding-bottom:24px}
.plan-table tbody th{text-align:left;font-weight:600;color:var(--text);background:transparent}
.plan-table tbody tr:last-child th,.plan-table tbody tr:last-child td{border-bottom:0}
.plan-table td{color:var(--text-2)}
.plan-table .col-hot{background:#F7FCE6}
.plan-table thead th.col-hot{position:relative;background:#F2FAD7}
.plan-table thead th.col-hot .badge{position:absolute;top:-1px;left:50%;transform:translate(-50%,-50%);background:var(--brand-beat);color:var(--brand-ink)}
.plan-price{display:block;font-size:13px;font-weight:500;color:var(--text-2);margin-top:4px}
.mark-yes{color:var(--ok);font-weight:700}
.mark-no{color:#BDB8C4}
.plan-table .v-yes{color:var(--brand-ink);font-weight:600}
.plan-cards{display:none;gap:18px;grid-template-columns:1fr}
.plan-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-sm)}
.plan-card.is-hot{border-color:var(--brand-beat);box-shadow:0 0 0 1px var(--brand-beat) inset}
.plan-card h3{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:6px}
.plan-card .price{font-size:15px;color:var(--text-2);margin-bottom:16px}
.plan-card ul{display:flex;flex-direction:column;gap:10px;margin-bottom:18px}
.plan-card li{display:flex;justify-content:space-between;gap:14px;font-size:14.5px;color:var(--text-2);border-bottom:1px dashed var(--line);padding-bottom:10px}
.plan-card li:last-child{border-bottom:0;padding-bottom:0}
.plan-card li b{color:var(--brand-ink);font-weight:600;text-align:right}

/* ---------- 等级亮点 ---------- */
.hl-grid{display:grid;grid-template-columns:1fr 1fr 1.1fr;gap:24px;align-items:start}
.hl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-sm);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.hl-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.hl-card:nth-child(2){margin-top:28px}
.hl-card:nth-child(3){margin-top:56px}
.hl-card h3{margin:14px 0 8px;font-size:22px}
.hl-card p{font-size:15px;color:var(--text-2)}
.hl-card ul{display:flex;flex-direction:column;gap:10px;margin:20px 0 22px}
.hl-card li{display:flex;gap:10px;font-size:15px;color:var(--text)}
.hl-card li::before{content:"✓";color:var(--ok);font-weight:700;flex:none}
.hl-card--feature{
  background:var(--brand-ink);border:1px solid rgba(201,242,77,.55);color:#fff;position:relative;
  box-shadow:0 22px 48px -24px rgba(20,16,28,.7);
}
.hl-card--feature h3,.hl-card--feature p,.hl-card--feature li{color:#fff}
.hl-card--feature p,.hl-card--feature li{color:rgba(255,255,255,.78)}
.hl-card--feature li::before{color:var(--brand-beat)}
.hl-card--feature .link-arrow{color:var(--brand-beat)}
.hl-card--feature .link-arrow:hover{color:#fff}
.hl-card--feature .corner{
  position:absolute;top:-13px;right:24px;background:var(--brand-beat);color:var(--brand-ink);
  font-size:12.5px;font-weight:800;padding:5px 14px;border-radius:999px;letter-spacing:.02em;
}

/* ---------- 内容预览 ---------- */
.preview-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:28px;align-items:start}
.big-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:transform .2s var(--ease),box-shadow .2s var(--ease);display:block;
}
.big-card + .big-card{margin-top:24px}
.big-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.big-card .thumb{overflow:hidden;aspect-ratio:4/3;background:var(--bg-alt)}
.big-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.big-card:hover .thumb img{transform:scale(1.03)}
.big-card .body{padding:24px}
.big-card .body h3{margin:12px 0 8px}
.big-card .body p{font-size:15px;color:var(--text-2)}
.big-card .body .link-arrow{margin-top:16px}
.mini-list{display:flex;flex-direction:column;gap:14px}
.mini-item{
  display:flex;gap:16px;align-items:center;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:14px;box-shadow:var(--shadow-sm);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.mini-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#D7D2C8}
.mini-item img{width:88px;height:66px;border-radius:12px;object-fit:cover;flex:none;background:var(--bg-alt)}
.mini-item .txt{min-width:0}
.mini-item h3{font-size:16px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:8px}
.mini-item:hover h3{color:var(--brand-pulse)}

/* ---------- 最新信息（CMS） ---------- */
.news-grid{display:flex;flex-wrap:wrap;margin:0 -12px}
.news-grid > .cell{padding:0 12px 24px}
.news-card{
  height:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;display:flex;flex-direction:column;gap:14px;box-shadow:var(--shadow-sm);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.news-card .badge{align-self:flex-start}
.news-title{font-size:19px;font-weight:700;color:var(--brand-ink);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card:hover .news-title{color:var(--brand-pulse)}
.news-summary{font-size:14.5px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13.5px;color:var(--text-2)}
.news-foot .more{color:var(--brand-ink);font-weight:600}
.empty-state{
  flex:0 0 100%;text-align:center;padding:56px 24px;border:1px dashed var(--line);border-radius:var(--radius-card);
  background:var(--surface);color:var(--text-2);
}
.empty-state .ico{
  width:56px;height:56px;margin:0 auto 16px;border-radius:16px;border:1.5px solid var(--line);
  display:flex;align-items:center;justify-content:center;
}
.empty-state .ico svg{width:24px;height:24px;stroke:var(--text-2);fill:none;stroke-width:1.6}
.empty-state p{margin-bottom:18px;font-size:15px}

/* ---------- 开通流程 ---------- */
.step-grid{display:flex;flex-wrap:wrap;margin:0 -12px}
.step-grid > .cell{padding:0 12px 24px}
.step{
  height:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-sm);position:relative;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.step .idx{
  width:40px;height:40px;border-radius:12px;background:var(--brand-ink);color:var(--brand-beat);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;margin-bottom:18px;
}
.step h3{font-size:18px;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--text-2)}

/* ---------- 反馈 ---------- */
.voice-grid{display:flex;flex-wrap:wrap;margin:0 -12px}
.voice-grid > .cell{padding:0 12px 24px}
.voice{
  height:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;display:flex;flex-direction:column;gap:16px;box-shadow:var(--shadow-sm);
}
.voice .quote{font-size:15.5px;color:var(--text);line-height:1.85}
.voice .who{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:16px;border-top:1px solid var(--line)}
.voice .who .avatar{width:40px;height:40px;border-radius:50%;background:var(--bg-alt);display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--brand-ink);flex:none}
.voice .who .name{font-size:14.5px;font-weight:600;color:var(--brand-ink)}
.voice .who .role{font-size:13px;color:var(--text-2)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:840px;margin:0 auto}
.accordion{background:transparent;border:0;border-radius:0;margin:0;padding:0;list-style:none;max-width:none}
.accordion .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent;border-radius:0}
.accordion .accordion-item:first-child{border-top:1px solid var(--line)}
.accordion .accordion-item.is-active{background:#F7FBE8;border-radius:12px}
.accordion .accordion-title{
  background:transparent;border:0;padding:22px 20px 22px 52px;font-size:17.5px;font-weight:600;color:var(--brand-ink);
  line-height:1.6;transition:background-color .2s var(--ease);
}
.accordion .accordion-title:hover{background:rgba(241,239,233,.7)}
.accordion .accordion-title::before{
  content:"+";position:absolute;left:14px;top:22px;width:26px;height:26px;border-radius:50%;
  background:var(--brand-beat);color:var(--brand-ink);font-size:16px;font-weight:700;font-family:inherit;
  display:flex;align-items:center;justify-content:center;line-height:1;
}
.accordion .accordion-title::after{display:none;content:"";}
.accordion .accordion-item.is-active .accordion-title::before{content:"−"}
.accordion .accordion-content{
  border:0;border-top:0;background:transparent;color:var(--text-2);
  padding:0 24px 24px 52px;font-size:15.5px;line-height:1.85;
}

/* ---------- CTA ---------- */
.cta-band{background:var(--brand-ink);color:#fff;border-radius:24px;padding:52px 48px;position:relative;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.08) 1px, transparent 1px);background-size:22px 22px;opacity:.6;
}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.cta-band h2{color:#fff;font-size:32px;margin-bottom:14px}
.cta-band .lead{color:rgba(255,255,255,.75)}
.cta-list{display:flex;flex-direction:column;gap:12px;margin-top:24px}
.cta-list li{display:flex;gap:10px;font-size:15px;color:rgba(255,255,255,.9)}
.cta-list li::before{content:"✓";color:var(--brand-beat);font-weight:700}
.join-form{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-card);padding:26px}
.join-row{display:flex;gap:12px}
.join-row input{
  flex:1;min-width:0;border-radius:var(--radius-input);border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.96);color:var(--text);padding:14px 16px;font-size:15px;outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.join-row input:focus{border-color:var(--brand-beat);box-shadow:0 0 0 3px rgba(201,242,77,.25)}
.join-hint{font-size:13.5px;color:rgba(255,255,255,.72);margin-top:14px}
.join-hint.is-ok{color:var(--brand-beat)}
.join-terms{font-size:12px;color:rgba(255,255,255,.55);margin-top:8px;line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-ink);color:#fff;padding:72px 0 0;margin-top:96px}
.ft-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.ft-brand .logo{color:#fff}
.ft-brand .logo-mark{background:rgba(255,255,255,.1)}
.ft-brand p{font-size:14.5px;color:rgba(255,255,255,.68);margin-top:18px;max-width:330px}
.ft-brand .contact{margin-top:18px;font-size:14.5px;color:rgba(255,255,255,.8);display:flex;flex-direction:column;gap:8px}
.ft-col h3{font-size:16px;color:#fff;margin-bottom:18px;font-weight:700}
.ft-col ul{display:flex;flex-direction:column;gap:12px}
.ft-col a{font-size:14.5px;color:rgba(255,255,255,.72);transition:color .2s var(--ease),transform .2s var(--ease);display:inline-block}
.ft-col a:hover{color:var(--brand-beat);transform:translateX(2px)}
.ft-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13.5px;color:rgba(255,255,255,.55);
}
.ft-bottom .dots{display:inline-flex;gap:4px;margin-right:8px;vertical-align:middle}
.ft-bottom .dots i{display:block;width:3px;border-radius:2px;background:var(--brand-beat)}
.ft-bottom .dots i:nth-child(1){height:6px}
.ft-bottom .dots i:nth-child(2){height:12px}
.ft-bottom .dots i:nth-child(3){height:8px}

/* ---------- 基础组件覆盖 Foundation ---------- */
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto}
.grid-x{display:flex;flex-wrap:wrap;margin-left:-12px;margin-right:-12px}
.grid-x > .cell{padding-left:12px;padding-right:12px}
.accordion-title{display:block;position:relative}
.button,.button.primary{background:var(--brand-pulse)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  h1{font-size:40px}
  h2{font-size:29px}
  .hero-grid{gap:40px}
  .search-box input{width:150px}
}
@media (max-width:991px){
  :root{--sec-pad:72px}
  .main-nav,.search-box{display:none}
  .burger{display:inline-flex}
  .hd-inner{height:64px}
  .hero{padding:48px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-copy h1{font-size:34px}
  .hero-copy .lead{font-size:17px}
  .hero-media::after{display:none}
  .stat-strip{margin-top:32px}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .hl-grid{grid-template-columns:1fr}
  .hl-card:nth-child(2),.hl-card:nth-child(3){margin-top:0}
  .preview-grid{grid-template-columns:1fr}
  .plan-wrap{display:none}
  .plan-cards{display:grid}
  .cta-band{padding:40px 28px;border-radius:20px}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .site-footer{padding-top:56px;margin-top:72px}
  .ft-grid{grid-template-columns:1fr 1fr;gap:32px}
  .ft-brand{grid-column:1 / -1}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .hd-inner{padding:0 16px}
  h1{font-size:29px}
  h2{font-size:23px}
  .hero-copy h1{font-size:29px}
  .hero-actions .btn{flex:1 1 auto}
  .badge-365{width:56px;height:56px;font-size:16px;top:14px;right:14px}
  .beat-bars{left:14px;bottom:14px}
  .stat{padding:20px 18px}
  .stat .num{font-size:26px}
  .mini-item img{width:72px;height:58px}
  .news-card{padding:20px}
  .join-row{flex-direction:column}
  .join-row .btn{width:100%}
  .accordion .accordion-title{padding:18px 16px 18px 46px;font-size:16.5px}
  .accordion .accordion-title::before{left:10px;top:18px;width:24px;height:24px}
  .accordion .accordion-content{padding:0 18px 20px 46px}
  .ft-grid{grid-template-columns:1fr;gap:28px}
  .ft-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:575px){
  .stat-grid{grid-template-columns:1fr}
  .hero-media img{border-radius:16px}
  .big-card .body{padding:20px}
  .hl-card{padding:22px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --brand-ink:#14101C;
  --brand-beat:#C9F24D;
  --brand-pulse:#FF5A2E;
  --brand-focus:#5B3DF5;
  --bg:#FBFAF7;
  --bg-alt:#F1EFE9;
  --surface:#FFFFFF;
  --text:#1B1723;
  --text-2:#5A5566;
  --line:#E4E1DA;
  --ok:#1FA97A;
  --warn:#D64545;
  --r-card:16px;
  --r-img:14px;
  --r-input:10px;
  --r-btn:12px;
  --shadow-1:0 1px 2px rgba(20,16,28,.06),0 8px 24px -12px rgba(20,16,28,.12);
  --shadow-2:0 12px 32px -10px rgba(20,16,28,.20);
  --ease:cubic-bezier(.2,.7,.3,1);
  --wrap:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;color:var(--text);background:var(--bg);
  font-feature-settings:"tnum";
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease),transform .2s var(--ease);}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-focus);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);backdrop-filter:saturate(140%) blur(6px);
  transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 22px -14px rgba(20,16,28,.28);}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.01em;color:var(--brand-ink);white-space:nowrap;}
.logo-mark{display:inline-flex;align-items:flex-end;gap:3px;height:22px;padding:0 8px;border-radius:8px;background:var(--brand-ink);}
.logo-mark i{display:block;width:3px;border-radius:2px;background:var(--brand-beat);}
.logo-mark i:nth-child(1){height:10px;}
.logo-mark i:nth-child(2){height:16px;background:var(--brand-pulse);}
.logo-mark i:nth-child(3){height:7px;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-link{position:relative;padding:8px 12px;font-size:15px;color:var(--text-2);border-radius:8px;}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;background:var(--brand-beat);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);}
.nav-link:hover{color:var(--brand-ink);background:var(--bg-alt);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-ink);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box input{
  width:210px;height:40px;border-radius:999px;border:1px solid transparent;background:var(--bg-alt);
  padding:0 16px;font-size:14px;transition:border-color .2s var(--ease),background .2s var(--ease);
}
.search-box input::placeholder{color:#8C8798;}
.search-box input:focus{outline:none;background:#fff;border-color:var(--brand-beat);box-shadow:0 0 0 3px rgba(201,242,77,.35);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:transform .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--brand-pulse);color:#fff;font-weight:700;box-shadow:0 8px 20px -10px rgba(255,90,46,.75);}
.btn-primary:hover{background:#E94A1E;transform:translateY(-2px);box-shadow:0 12px 24px -10px rgba(255,90,46,.65);color:#fff;}
.btn-primary:active{transform:translateY(0);filter:brightness(.94);}
.btn-secondary{background:transparent;border-color:var(--line);color:var(--brand-ink);}
.btn-secondary:hover{background:var(--brand-ink);border-color:var(--brand-ink);color:#fff;transform:translateY(-2px);}
.btn-secondary:active{transform:translateY(0);}
.btn-beat{background:var(--brand-beat);color:var(--brand-ink);font-weight:700;}
.btn-beat:hover{background:#BCE63A;transform:translateY(-2px);color:var(--brand-ink);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-ink);transition:transform .2s var(--ease),opacity .2s var(--ease);}
.nav-toggle.is-active span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-active span:nth-child(2){opacity:0;}
.nav-toggle.is-active span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.mobile-drawer{display:none;}

/* ============ 面包屑与文章头部 ============ */
.article-top{
  background:var(--bg-alt);
  padding:36px 0 44px;
  background-image:radial-gradient(rgba(20,16,28,.06) 1px,transparent 1px);
  background-size:14px 14px;
  border-bottom:1px solid var(--line);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-2);}
.crumbs a{color:var(--text-2);}
.crumbs a:hover{color:var(--brand-pulse);}
.crumbs .sep{color:#B7B2C0;}
.crumbs .current{color:var(--brand-ink);font-weight:600;}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;margin:20px 0 14px;
  padding:6px 14px;border-radius:999px;background:var(--brand-ink);color:var(--brand-beat);
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.article-title{
  font-size:38px;line-height:1.25;font-weight:800;letter-spacing:-.02em;color:var(--brand-ink);
  max-width:900px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:20px;padding-top:18px;
  border-top:1px solid rgba(20,16,28,.10);font-size:14px;color:var(--text-2);
}
.article-meta .badge{background:#fff;border:1px solid var(--line);color:var(--text-2);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C6C2CE;}
.badge{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;background:var(--brand-beat);color:var(--brand-ink);
}
.badge-ghost{background:transparent;border:1px solid var(--line);color:var(--text-2);}
.badge-dark{background:var(--brand-ink);color:var(--brand-beat);}

/* ============ 正文 ============ */
.article-band{padding:64px 0 72px;background:var(--bg);}
.article-shell{max-width:900px;margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr);gap:40px;}
.article-body{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);padding:44px 48px;
}
.article-content{font-size:18px;line-height:1.95;color:var(--text);}
.article-content p{margin:0 0 1.1em;}
.article-content h2{position:relative;font-size:28px;font-weight:700;line-height:1.35;margin:1.9em 0 .75em;padding-left:16px;color:var(--brand-ink);}
.article-content h2:first-child{margin-top:0;}
.article-content h2::before{content:"";position:absolute;left:0;top:.16em;width:4px;height:1em;border-radius:2px;background:var(--brand-beat);}
.article-content h3{font-size:21px;font-weight:600;margin:1.6em 0 .6em;color:var(--brand-ink);}
.article-content ul,.article-content ol{margin:0 0 1.1em;padding-left:1.35em;}
.article-content ul{list-style:disc;}
.article-content ol{list-style:decimal;}
.article-content li{margin:.4em 0;}
.article-content ul li::marker{color:var(--brand-beat);font-size:1.1em;}
.article-content ol li::marker{color:var(--brand-pulse);font-weight:700;}
.article-content blockquote{
  margin:1.5em 0;padding:16px 22px;border-left:3px solid var(--brand-pulse);
  background:#F7FBE8;border-radius:0 12px 12px 0;color:var(--text-2);font-size:17px;
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content strong{font-weight:700;color:var(--brand-ink);}
.article-content a{color:var(--brand-focus);text-decoration:underline;text-underline-offset:3px;}
.article-content a:hover{color:var(--brand-pulse);}
.article-content img{width:100%;height:auto;border-radius:var(--r-img);margin:1.5em auto;background:var(--bg-alt);}
.article-content figure{margin:1.7em 0;}
.article-content figure img{margin:0 auto;}
.article-content figcaption{text-align:center;font-size:13px;color:var(--text-2);margin-top:10px;}
.article-content table{width:100%;border-collapse:collapse;font-size:16px;margin:1.5em 0;}
.article-content th,.article-content td{border:1px solid var(--line);padding:10px 14px;text-align:left;vertical-align:top;}
.article-content th{background:var(--bg-alt);font-weight:600;color:var(--brand-ink);}
.article-content hr{border:none;border-top:1px solid var(--line);margin:2em 0;}
.article-content code{background:var(--bg-alt);border-radius:6px;padding:2px 6px;font-size:15px;}
.empty-state{text-align:center;padding:44px 20px;}
.empty-state .empty-icon{width:56px;height:56px;margin:0 auto 18px;border-radius:16px;background:var(--bg-alt);display:flex;align-items:center;justify-content:center;}
.empty-state .empty-icon i{display:block;width:22px;height:3px;border-radius:2px;background:var(--brand-ink);box-shadow:0 8px 0 rgba(20,16,28,.25),0 -8px 0 rgba(20,16,28,.25);}
.empty-state h2{font-size:24px;font-weight:700;color:var(--brand-ink);margin-bottom:10px;}
.empty-state p{color:var(--text-2);margin-bottom:22px;}

/* ============ 相关推荐 ============ */
.related-band{padding:0 0 72px;background:var(--bg);}
.related-head{display:flex;align-items:center;gap:12px;margin-bottom:26px;}
.beat-bars{display:inline-flex;align-items:flex-end;gap:3px;height:20px;}
.beat-bars i{display:block;width:4px;border-radius:2px;background:var(--brand-beat);}
.beat-bars i:nth-child(2){background:var(--brand-pulse);}
.beat-bars i:nth-child(1){height:9px;}
.beat-bars i:nth-child(2){height:18px;}
.beat-bars i:nth-child(3){height:13px;}
.related-head h2{font-size:28px;font-weight:700;color:var(--brand-ink);letter-spacing:-.01em;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rec-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.rec-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.rec-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--bg-alt);}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.rec-card:hover .rec-thumb img{transform:scale(1.03);}
.rec-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.rec-title{font-size:17px;font-weight:600;line-height:1.55;color:var(--brand-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rec-card:hover .rec-title{color:var(--brand-pulse);}
.rec-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-2);}
.back-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}

/* ============ 底部 CTA ============ */
.cta-band{background:var(--brand-ink);padding:56px 0;color:#fff;}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;}
.cta-inner h2{font-size:26px;font-weight:700;letter-spacing:-.01em;color:#fff;}
.cta-inner p{margin-top:8px;color:rgba(255,255,255,.7);font-size:15px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-ink);color:#fff;padding:64px 0 0;}
.ft-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.ft-brand .logo{color:#fff;font-size:18px;}
.ft-brand p{margin:16px 0 18px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:340px;}
.ft-brand .contact{display:flex;flex-direction:column;gap:6px;font-size:13px;color:rgba(255,255,255,.6);}
.ft-col h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.ft-col ul{display:flex;flex-direction:column;gap:10px;}
.ft-col a{font-size:14px;color:rgba(255,255,255,.72);display:inline-block;}
.ft-col a:hover{color:var(--brand-beat);transform:translateX(2px);}
.ft-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0 26px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(255,255,255,.55);
}
.dots{display:inline-flex;gap:3px;margin-right:8px;vertical-align:middle;}
.dots i{display:block;width:4px;height:4px;border-radius:50%;background:var(--brand-beat);}
.dots i:nth-child(2){background:var(--brand-pulse);}

/* ============ 响应式 ============ */
@media screen and (max-width:1199px){
  .article-title{font-size:34px;}
  .article-body{padding:38px 34px;}
}
@media screen and (max-width:991px){
  .main-nav{display:none;}
  .search-box{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{height:66px;gap:14px;}
  .mobile-drawer{
    display:block;position:fixed;top:0;right:0;width:84%;max-width:340px;height:100vh;
    background:#fff;z-index:80;padding:26px 22px;transform:translateX(105%);
    transition:transform .28s var(--ease);box-shadow:-20px 0 40px -24px rgba(20,16,28,.4);
    overflow-y:auto;
  }
  .mobile-drawer.is-open{transform:translateX(0);}
  .mobile-drawer .drawer-title{font-size:13px;color:var(--text-2);margin-bottom:14px;}
  .mobile-drawer .drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:22px;}
  .mobile-drawer .drawer-nav a{padding:12px 14px;border-radius:10px;font-size:15px;color:var(--text-2);background:var(--bg);}
  .mobile-drawer .drawer-nav a.is-active{background:var(--bg-alt);color:var(--brand-ink);font-weight:600;}
  .mobile-drawer .search-box{display:block;margin-bottom:18px;}
  .mobile-drawer .search-box input{width:100%;}
  .drawer-mask{position:fixed;inset:0;background:rgba(20,16,28,.5);z-index:70;opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s var(--ease);}
  .drawer-mask.is-open{opacity:1;visibility:visible;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .ft-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .article-shell{max-width:100%;}
}
@media screen and (max-width:767px){
  .container{padding:0 16px;}
  .article-top{padding:26px 0 32px;}
  .article-title{font-size:28px;}
  .article-band{padding:44px 0 52px;}
  .article-body{padding:26px 20px;border-radius:14px;}
  .article-content{font-size:17px;line-height:1.9;}
  .article-content h2{font-size:22px;}
  .article-content h3{font-size:19px;}
  .related-head h2{font-size:23px;}
  .related-grid{grid-template-columns:1fr;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-inner .btn{width:100%;}
  .ft-grid{grid-template-columns:1fr;}
  .ft-bottom{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:575px){
  .logo{font-size:16px;}
  .logo-mark{padding:0 6px;height:20px;}
  .article-meta{gap:10px;font-size:13px;}
  .back-row .btn{width:100%;}
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root{
  --brand-ink:#14101C;
  --brand-beat:#C9F24D;
  --brand-pulse:#FF5A2E;
  --brand-focus:#5B3DF5;
  --bg:#FBFAF7;
  --bg-alt:#F1EFE9;
  --surface:#FFFFFF;
  --text:#1B1723;
  --text-2:#5A5566;
  --line:#E4E1DA;
  --ok:#1FA97A;
  --warn:#D64545;
  --radius:16px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(20,16,28,.06),0 8px 24px -12px rgba(20,16,28,.12);
  --shadow-2:0 12px 32px -10px rgba(20,16,28,.20);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:72px;
}
/* ===== reset / base ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  font-feature-settings:"tnum";
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-ink);text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease)}
a:hover{color:var(--brand-pulse)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul{padding:0;list-style:none}
button,input{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--brand-focus);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-alt{background:var(--bg-alt)}
.section-head{max-width:760px;margin-bottom:44px}
.section-kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--brand-pulse);text-transform:uppercase;margin-bottom:14px}
.section-kicker::before{content:"";display:block;width:22px;height:3px;border-radius:2px;background:var(--brand-pulse)}
h2{font-size:32px;font-weight:700;line-height:1.28;letter-spacing:-.01em;color:var(--brand-ink);margin-bottom:14px}
h3{font-size:20px;font-weight:600;line-height:1.45;color:var(--brand-ink)}
.section-head p{color:var(--text-2);font-size:16px}

/* ===== 头部导航 ===== */
.site-header{position:sticky;top:0;z-index:80;background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow .2s var(--ease)}
.site-header.is-scrolled{box-shadow:0 6px 24px -14px rgba(20,16,28,.35)}
.header-inner{display:flex;align-items:center;gap:20px;height:var(--nav-h)}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--brand-ink);flex:none}
.brand:hover{color:var(--brand-ink)}
.brand-text{white-space:nowrap}
.logo-mark{display:inline-flex;align-items:flex-end;gap:3px;height:22px}
.logo-mark i{display:block;width:4px;border-radius:2px;background:var(--brand-ink)}
.logo-mark i:nth-child(1){height:11px}
.logo-mark i:nth-child(2){height:22px;background:var(--brand-pulse)}
.logo-mark i:nth-child(3){height:15px;background:var(--brand-beat)}
.main-nav{display:flex;align-items:center;gap:2px;flex:1;flex-wrap:wrap}
.nav-link{position:relative;padding:9px 13px;font-size:15px;color:var(--text-2);border-radius:var(--radius-pill);white-space:nowrap}
.nav-link:hover{color:var(--brand-ink);background:var(--bg-alt)}
.nav-link.is-active{color:var(--brand-ink);font-weight:700}
.nav-link.is-active::after{content:"";position:absolute;left:13px;right:13px;bottom:1px;height:2px;border-radius:2px;background:var(--brand-beat)}
.header-actions{display:flex;align-items:center;gap:12px;flex:none}
.search-box{display:flex;align-items:center;gap:8px;height:42px;padding:0 14px;background:var(--bg-alt);border:1.5px solid transparent;border-radius:var(--radius-pill);transition:border-color .2s var(--ease),background-color .2s var(--ease)}
.search-box:focus-within{border-color:var(--brand-beat);background:var(--surface)}
.search-box i{color:var(--text-2);font-size:14px}
.search-box input{width:168px;border:0;background:transparent;outline:none;font-size:14px;color:var(--text)}
.search-box input::placeholder{color:#918B9C}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--radius-pill);font-size:15px;font-weight:700;border:1.5px solid transparent;cursor:pointer;transition:all .2s var(--ease);white-space:nowrap}
.btn-pulse{background:var(--brand-pulse);color:#fff;box-shadow:0 8px 20px -12px rgba(255,90,46,.9)}
.btn-pulse:hover{background:#E84716;color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px -12px rgba(255,90,46,.95)}
.btn-pulse:active{transform:translateY(0);filter:brightness(.95)}
.btn-ink{background:var(--brand-ink);color:#fff}
.btn-ink:hover{background:#241D33;color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-ink:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--brand-ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--brand-ink);color:#fff;border-color:var(--brand-ink)}
.btn-beat{background:var(--brand-beat);color:var(--brand-ink)}
.btn-beat:hover{background:#B9E63A;color:var(--brand-ink);transform:translateY(-2px);box-shadow:0 12px 26px -14px rgba(201,242,77,.9)}
.btn-block{width:100%}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;padding:0;background:var(--bg-alt);border:1px solid var(--line);border-radius:12px;cursor:pointer}
.nav-toggle span{display:block;width:18px;height:2px;margin:0 auto;background:var(--brand-ink);border-radius:2px}

/* ===== 移动抽屉 ===== */
.nav-overlay{position:fixed;inset:0;background:rgba(20,16,28,.5);opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s var(--ease);z-index:120}
.nav-overlay.is-on{opacity:1;visibility:visible}
.mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);background:var(--surface);z-index:130;padding:26px 24px 32px;overflow-y:auto;transform:translateX(103%);transition:transform .28s var(--ease);box-shadow:-12px 0 40px -20px rgba(20,16,28,.5)}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-head .brand{font-size:17px}
.drawer-close{width:36px;height:36px;border-radius:50%;border:1px solid var(--line);background:var(--bg-alt);color:var(--brand-ink);cursor:pointer}
.mobile-drawer nav a{display:block;padding:14px 4px;font-size:16px;color:var(--text);border-bottom:1px solid var(--line)}
.mobile-drawer nav a.is-active{color:var(--brand-ink);font-weight:700;border-bottom-color:var(--brand-beat)}
.mobile-drawer .search-box{margin:22px 0 16px;width:100%}
.mobile-drawer .search-box input{width:100%}

/* ===== 分类横幅 ===== */
.page-hero{position:relative;overflow:hidden;background:var(--brand-ink);color:#fff}
.page-hero .hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.34}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(20,16,28,.94) 22%,rgba(20,16,28,.62) 68%,rgba(20,16,28,.45))}
.page-hero .container{position:relative;z-index:2;padding-top:58px;padding-bottom:62px}
.breadcrumb{font-size:13px;color:rgba(255,255,255,.62);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.62)}
.breadcrumb a:hover{color:var(--brand-beat)}
.breadcrumb span.sep{margin:0 8px;color:rgba(255,255,255,.35)}
.breadcrumb .current{color:#fff}
.page-hero h1{font-size:44px;font-weight:800;line-height:1.2;letter-spacing:-.02em;margin:18px 0 18px;max-width:900px}
.page-hero .lead{max-width:720px;font-size:17px;color:rgba(255,255,255,.78)}
.hero-stats{display:flex;flex-wrap:wrap;gap:44px;margin-top:38px;padding-top:28px;border-top:1px solid rgba(255,255,255,.14)}
.hero-stats strong{display:block;font-size:30px;font-weight:800;color:var(--brand-beat);letter-spacing:-.02em}
.hero-stats span{font-size:13px;color:rgba(255,255,255,.6)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:var(--radius-pill);font-size:12px;font-weight:700;letter-spacing:.02em}
.badge-level{background:var(--brand-beat);color:var(--brand-ink)}
.badge-outline{background:transparent;border:1px solid var(--line);color:var(--text-2);font-weight:600}
.badge-ink{background:var(--brand-ink);color:var(--brand-beat)}

/* ===== 筛选条 ===== */
.filter-bar{position:sticky;top:var(--nav-h);z-index:60;background:var(--surface);border-bottom:1px solid var(--line)}
.filter-inner{display:flex;align-items:center;gap:20px;padding:14px 0}
.chips{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;flex:1;padding:2px}
.chips::-webkit-scrollbar{display:none}
.chip{padding:8px 18px;border:1px solid var(--line);background:var(--surface);border-radius:var(--radius-pill);font-size:14px;color:var(--text-2);cursor:pointer;white-space:nowrap;transition:all .2s var(--ease)}
.chip:hover{border-color:var(--brand-ink);color:var(--brand-ink)}
.chip.is-active{background:var(--brand-ink);border-color:var(--brand-ink);color:#fff;font-weight:600}
.filter-note{font-size:13px;color:var(--text-2);white-space:nowrap}

/* ===== 素材网格 ===== */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.beat-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.beat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#D6D2C8}
.card-media{aspect-ratio:4/3;overflow:hidden;background:var(--bg-alt)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.beat-card:hover .card-media img{transform:scale(1.03)}
.card-body{display:flex;flex-direction:column;gap:10px;flex:1;padding:22px 24px 24px}
.card-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.card-body h3{font-size:19px;transition:color .2s var(--ease)}
.beat-card:hover .card-body h3{color:var(--brand-pulse)}
.card-body p{font-size:14px;color:var(--text-2);line-height:1.75}
.card-meta{display:flex;flex-wrap:wrap;gap:16px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--text-2)}
.card-meta i{color:var(--brand-pulse);margin-right:5px}
.empty-note{display:none;padding:60px 24px;text-align:center;color:var(--text-2);border:1px dashed var(--line);border-radius:var(--radius);background:var(--surface)}
.empty-note i{font-size:26px;color:var(--text-2);display:block;margin-bottom:12px}

/* ===== 场景板块 ===== */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;align-items:start}
.scene-card{padding:32px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.scene-card:nth-child(2){margin-top:38px}
.scene-card:nth-child(3){margin-top:16px}
.scene-card .scene-index{font-size:13px;font-weight:800;color:var(--brand-pulse);letter-spacing:.1em}
.scene-card h3{margin:12px 0 12px}
.scene-card p{font-size:15px;color:var(--text-2);line-height:1.8}
.scene-card ul{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.scene-card li{display:flex;gap:10px;font-size:14px;color:var(--text-2)}
.scene-card li i{color:var(--ok);margin-top:5px}
.scene-card.is-highlight{background:var(--brand-ink);border-color:rgba(201,242,77,.55);color:#fff}
.scene-card.is-highlight h3{color:#fff}
.scene-card.is-highlight p,.scene-card.is-highlight li{color:rgba(255,255,255,.76)}
.scene-card.is-highlight .scene-index{color:var(--brand-beat)}
.scene-card.is-highlight li i{color:var(--brand-beat)}

/* ===== 说明段 ===== */
.note-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px}
.note-grid p{color:var(--text-2);font-size:16px}
.note-grid p + p{margin-top:18px}
.note-list{display:flex;flex-direction:column;gap:18px}
.note-list li{display:flex;gap:14px;padding:18px 20px;background:var(--surface);border:1px solid var(--line);border-radius:14px}
.note-list i{color:var(--brand-pulse);margin-top:5px}
.note-list strong{display:block;color:var(--brand-ink);font-size:15px;margin-bottom:4px}
.note-list span{font-size:14px;color:var(--text-2)}

/* ===== CTA 深色区 ===== */
.cta-band{background:var(--brand-ink);border-radius:24px;padding:52px;color:#fff;display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;right:-60px;bottom:-80px;width:260px;height:260px;background:radial-gradient(circle,rgba(201,242,77,.22),transparent 68%)}
.cta-band h2{color:#fff;position:relative;z-index:2}
.cta-band .cta-sub{color:rgba(255,255,255,.74);margin-top:14px;position:relative;z-index:2}
.cta-checks{margin-top:26px;display:flex;flex-direction:column;gap:12px;position:relative;z-index:2}
.cta-checks li{display:flex;gap:10px;font-size:15px;color:rgba(255,255,255,.85)}
.cta-checks i{color:var(--brand-beat);margin-top:5px}
.join-form{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:20px;padding:28px;position:relative;z-index:2}
.field-label{display:block;font-size:14px;color:rgba(255,255,255,.8);margin-bottom:10px}
.join-form input{width:100%;height:48px;padding:0 16px;border-radius:var(--radius-sm);border:1.5px solid rgba(255,255,255,.2);background:rgba(255,255,255,.94);color:var(--text);outline:none;transition:border-color .2s var(--ease)}
.join-form input:focus{border-color:var(--brand-beat)}
.join-form .btn{margin-top:16px}
.form-tip{margin-top:14px;font-size:12px;line-height:1.7;color:rgba(255,255,255,.6)}
.form-tip.is-ok{color:var(--brand-beat)}
.form-tip.is-warn{color:#FFB4A2}

/* ===== 页脚 ===== */
.site-footer{background:var(--brand-ink);color:#fff;padding:64px 0 0;margin-top:96px}
.ft-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.ft-brand .logo{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;letter-spacing:-.01em}
.ft-brand .logo-mark i{background:rgba(255,255,255,.85)}
.ft-brand .logo-mark i:nth-child(2){background:var(--brand-pulse)}
.ft-brand .logo-mark i:nth-child(3){background:var(--brand-beat)}
.ft-brand p{margin-top:18px;max-width:350px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.7)}
.ft-brand .contact{margin-top:18px;display:flex;flex-direction:column;gap:8px}
.ft-brand .contact span{font-size:13px;color:rgba(255,255,255,.58)}
.ft-col h3{font-size:15px;color:#fff;margin-bottom:18px;font-weight:700}
.ft-col ul{display:flex;flex-direction:column;gap:11px}
.ft-col a{font-size:14px;color:rgba(255,255,255,.72)}
.ft-col a:hover{color:var(--brand-beat);transform:translateX(2px)}
.ft-bottom{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;margin-top:52px;padding:22px 0;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.55)}
.dots{display:inline-flex;gap:4px;align-items:center;margin-right:8px}
.dots i{display:block;width:5px;height:5px;border-radius:50%;background:rgba(255,255,255,.4)}
.dots i:nth-child(2){background:var(--brand-pulse)}
.dots i:nth-child(3){background:var(--brand-beat)}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .page-hero h1{font-size:38px}
  .grid-3{gap:22px}
  .section{padding:84px 0}
}
@media (max-width:991px){
  :root{--nav-h:64px}
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .search-box{display:none}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:1fr;gap:20px}
  .scene-card:nth-child(2),.scene-card:nth-child(3){margin-top:0}
  .note-grid{grid-template-columns:1fr;gap:32px}
  .cta-band{grid-template-columns:1fr;padding:38px;gap:32px}
  .ft-grid{grid-template-columns:1fr 1fr;gap:30px}
  .page-hero h1{font-size:32px}
  .page-hero .container{padding-top:46px;padding-bottom:50px}
  .section{padding:72px 0}
  h2{font-size:26px}
  .filter-bar{top:var(--nav-h)}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .grid-3{grid-template-columns:1fr}
  .section{padding:60px 0}
  h2{font-size:23px}
  .page-hero h1{font-size:28px}
  .hero-stats{gap:26px;margin-top:28px}
  .hero-stats strong{font-size:24px}
  .filter-inner{flex-direction:column;align-items:flex-start;gap:10px}
  .chips{width:100%}
  .cta-band{padding:28px 22px;border-radius:18px}
  .join-form{padding:22px}
  .site-footer{margin-top:64px;padding-top:48px}
  .ft-grid{grid-template-columns:1fr}
  .ft-bottom{flex-direction:column;align-items:flex-start}
  .card-body{padding:20px}
  .scene-card{padding:24px}
}
@media (max-width:575px){
  .page-hero h1{font-size:25px;line-height:1.3}
  .badge{font-size:11px}
  .btn{padding:11px 20px;font-size:14px}
}

/* roulang page: category2 */
/* ===================== 设计变量 ===================== */
:root{
  --brand-ink:#14101C;
  --brand-beat:#C9F24D;
  --brand-pulse:#FF5A2E;
  --brand-focus:#5B3DF5;
  --bg:#FBFAF7;
  --bg-alt:#F1EFE9;
  --surface:#FFFFFF;
  --text:#1B1723;
  --text-2:#5A5566;
  --line:#E4E1DA;
  --ok:#1FA97A;
  --warn:#D64545;
  --radius-card:16px;
  --radius-img:14px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(20,16,28,.06),0 8px 24px -12px rgba(20,16,28,.12);
  --shadow-2:0 12px 32px -10px rgba(20,16,28,.20);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}

/* ===================== 基础 reset ===================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),transform .2s var(--ease)}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4,p,ul,ol,figure,fieldset{margin:0}
ul,ol{padding:0;list-style:none}
fieldset{border:0;padding:0}
.num{font-feature-settings:"tnum";font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--brand-focus);outline-offset:2px;border-radius:4px}
.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}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ===================== 顶部导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 24px -14px rgba(20,16,28,.28)}
.nav-wrap{display:flex;align-items:center;gap:18px;height:72px}

.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-name{
  font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--brand-ink);white-space:nowrap;
}
.logo-mark{display:inline-flex;align-items:flex-end;gap:3px;height:18px}
.logo-mark i{width:3px;border-radius:2px;background:var(--brand-ink);display:block}
.logo-mark i:nth-child(1){height:10px}
.logo-mark i:nth-child(2){height:18px;background:var(--brand-pulse)}
.logo-mark i:nth-child(3){height:13px}

.main-nav{display:flex;align-items:center;gap:2px;flex:1 1 auto;min-width:0}
.nav-link{
  position:relative;
  padding:9px 12px;border-radius:999px;
  font-size:15px;color:var(--text-2);white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--brand-ink);background:var(--bg-alt)}
.nav-link.is-active{color:var(--brand-ink);font-weight:700;background:#F7FBE8}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:20px;height:2px;border-radius:2px;background:var(--brand-beat);
}

.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto}
.nav-search{
  display:flex;align-items:center;gap:6px;
  height:40px;padding:0 6px 0 14px;
  background:var(--bg-alt);border:1px solid transparent;border-radius:999px;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.nav-search:focus-within{border-color:var(--brand-beat);background:#fff}
.nav-search i{font-size:13px;color:var(--text-2)}
.nav-search input{
  width:132px;border:0;background:transparent;font-size:14px;outline:none;
}
.nav-search input::placeholder{color:#9C97A5}
.nav-search button{
  height:30px;padding:0 14px;border-radius:999px;background:var(--brand-ink);color:#fff;
  font-size:13px;font-weight:600;transition:background .2s var(--ease);
}
.nav-search button:hover{background:#241E33}

.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-ink);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,16,28,.5);z-index:190;
  opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:200;
  background:#fff;padding:22px;display:flex;flex-direction:column;gap:6px;
  transform:translateX(101%);transition:transform .28s var(--ease);overflow-y:auto;
}
.drawer.is-open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);font-size:16px;color:var(--text-2)}
.drawer-link{padding:13px 4px;border-bottom:1px solid var(--line);font-size:16px;font-weight:600;color:var(--text)}
.drawer-link.is-active{color:var(--brand-pulse)}
.drawer-cta{margin-top:18px;width:100%;justify-content:center}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1.4;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--brand-pulse);color:#fff;box-shadow:0 8px 20px -10px rgba(255,90,46,.7)}
.btn-primary:hover{background:#E94A1E;transform:translateY(-2px);box-shadow:0 14px 28px -12px rgba(255,90,46,.75)}
.btn-primary:active{transform:translateY(0);filter:brightness(.94)}
.btn-ink{background:var(--brand-ink);color:#fff}
.btn-ink:hover{background:#241E33;transform:translateY(-2px)}
.btn-ghost{border-color:var(--line);color:var(--brand-ink);background:rgba(255,255,255,.7)}
.btn-ghost:hover{background:var(--brand-ink);color:#fff;border-color:var(--brand-ink);transform:translateY(-2px)}
.btn-lime{background:var(--brand-beat);color:var(--brand-ink)}
.btn-lime:hover{background:#B9E63C;transform:translateY(-2px)}
.btn-outline-light{border-color:rgba(255,255,255,.42);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-sm{padding:9px 18px;font-size:14px}

/* ===================== 通用板块 ===================== */
.section{padding:96px 0}
.section--alt{background:var(--bg-alt)}
.section--tight{padding:72px 0}
.section-head{max-width:780px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--brand-pulse);margin-bottom:14px;
}
.bars{display:inline-flex;align-items:flex-end;gap:3px;height:14px}
.bars i{width:3px;border-radius:2px;background:var(--brand-ink);display:block}
.bars i:nth-child(1){height:8px}
.bars i:nth-child(2){height:14px;background:var(--brand-pulse)}
.bars i:nth-child(3){height:11px}
.section-title{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.32;letter-spacing:-.01em}
.section-desc{margin-top:14px;color:var(--text-2);font-size:16px}

/* ===================== 内页 Hero ===================== */
.page-hero{padding:28px 0 0}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-2);margin-bottom:16px;
}
.breadcrumb a:hover{color:var(--brand-pulse)}
.breadcrumb .sep{color:#C6C1B8}
.breadcrumb .current{color:var(--text-2)}

.hero-card{
  position:relative;overflow:hidden;border-radius:24px;
  background:var(--brand-ink);color:#fff;
  padding:64px 56px;min-height:360px;
  display:flex;flex-direction:column;justify-content:center;
}
.hero-card::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-1.png) center/cover no-repeat;
  opacity:.36;
}
.hero-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(20,16,28,.94) 0%,rgba(20,16,28,.76) 46%,rgba(20,16,28,.34) 100%);
}
.hero-inner{position:relative;z-index:3;max-width:780px}
.hero-card h1{
  font-size:clamp(28px,4vw,46px);font-weight:800;line-height:1.22;letter-spacing:-.02em;color:#fff;
}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.84);max-width:640px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;font-size:13px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:rgba(255,255,255,.92);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-badge{
  position:absolute;right:48px;top:48px;z-index:3;
  width:66px;height:66px;border-radius:50%;background:var(--brand-beat);color:var(--brand-ink);
  display:grid;place-items:center;font-weight:800;font-size:15px;letter-spacing:.01em;
}
.hero-bars{
  position:absolute;right:52px;bottom:0;z-index:3;display:flex;align-items:flex-end;gap:8px;
}
.hero-bars i{width:8px;border-radius:5px 5px 0 0;background:var(--brand-beat);opacity:.9}
.hero-bars i:nth-child(1){height:58px}
.hero-bars i:nth-child(2){height:104px;background:var(--brand-pulse)}
.hero-bars i:nth-child(3){height:76px}

/* ===================== 两栏布局 ===================== */
.two-col{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:52px;align-items:start}
.aside-sticky{position:sticky;top:98px;display:grid;gap:22px}

/* ===================== 时间轴 ===================== */
.timeline{position:relative;padding-left:0}
.timeline::before{
  content:"";position:absolute;left:19px;top:10px;bottom:24px;width:2px;
  background-image:repeating-linear-gradient(to bottom,var(--line) 0 6px,transparent 6px 13px);
}
.tl-item{position:relative;padding:0 0 34px 66px}
.tl-item:last-child{padding-bottom:0}
.tl-num{
  position:absolute;left:0;top:2px;width:40px;height:40px;border-radius:50%;
  background:#fff;border:2px solid var(--brand-beat);color:var(--brand-ink);
  display:grid;place-items:center;font-weight:800;font-size:15px;
  font-feature-settings:"tnum";box-shadow:0 6px 16px -10px rgba(20,16,28,.4);
}
.tl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 26px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#D8D4CB}
.tl-card h3{font-size:19px;font-weight:700;letter-spacing:-.01em}
.tl-card p{margin-top:10px;color:var(--text-2);font-size:15.5px}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.chip{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;
  font-size:12.5px;background:var(--bg-alt);color:var(--text-2);border:1px solid var(--line);
}
.chip--lime{background:#F7FBE8;color:#3F4A12;border-color:#DCEFA2}
.chip--ink{background:var(--brand-ink);color:var(--brand-beat);border-color:var(--brand-ink)}

/* ===================== 图片与提示卡 ===================== */
.media-card{
  border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);
  background:var(--bg-alt);
}
.media-card img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s var(--ease)}
.media-card:hover img{transform:scale(1.03)}

.tip-card{
  background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--brand-beat);
  border-radius:var(--radius-card);padding:24px 26px;box-shadow:var(--shadow-1);
}
.tip-card h3{font-size:17px;font-weight:700}
.tip-list{margin-top:14px;display:grid;gap:12px}
.tip-list li{display:flex;gap:10px;font-size:15px;color:var(--text-2);line-height:1.75}
.tip-list i{color:var(--brand-beat);margin-top:8px;font-size:12px}

/* ===================== 注册方式卡 ===================== */
.method-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
.method-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:30px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.method-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.method-head{display:flex;align-items:center;gap:12px}
.method-icon{
  width:44px;height:44px;border-radius:12px;background:var(--bg-alt);
  display:grid;place-items:center;color:var(--brand-ink);font-size:17px;
}
.method-card h3{font-size:20px;font-weight:700}
.method-card .lead{margin-top:14px;color:var(--text-2);font-size:15.5px}
.method-rows{margin-top:20px;border-top:1px solid var(--line)}
.method-row{
  display:flex;gap:14px;padding:13px 0;border-bottom:1px solid var(--line);font-size:15px;
}
.method-row span:first-child{flex:0 0 84px;color:var(--text-2)}
.method-row span:last-child{color:var(--text)}
.note-line{
  margin-top:26px;padding:18px 22px;border-radius:14px;background:#F7FBE8;
  border:1px solid #DFEFA6;color:#41471B;font-size:15px;display:flex;gap:12px;align-items:flex-start;
}
.note-line i{color:var(--ok);margin-top:7px;font-size:13px}

/* ===================== 常用操作网格 ===================== */
.scene-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.scene-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.scene-num{
  font-size:13px;font-weight:700;color:var(--brand-pulse);letter-spacing:.08em;
  font-feature-settings:"tnum";
}
.scene-card h3{margin-top:12px;font-size:18px;font-weight:700;line-height:1.5}
.scene-card p{margin-top:10px;font-size:14.5px;color:var(--text-2)}

/* ===================== 开通说明带 ===================== */
.band{background:var(--bg-alt);border-radius:24px;padding:48px 44px}
.band-title{font-size:21px;font-weight:700;letter-spacing:-.01em}
.band-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:30px}
.band-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-1);
}
.band-item h4{font-size:17px;font-weight:700}
.band-item p{margin-top:10px;font-size:14.5px;color:var(--text-2)}
.band-item .num{color:var(--brand-ink);font-weight:700}

/* ===================== FAQ ===================== */
.faq-list{max-width:840px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  padding:22px 12px;font-size:17px;font-weight:600;color:var(--brand-ink);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:#F7FBE8}
.faq-mark{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  background:var(--brand-beat);color:var(--brand-ink);
  display:grid;place-items:center;font-size:15px;font-weight:800;line-height:1;
}
.faq-mark::before{content:"+"}
.faq-item[open] .faq-mark::before{content:"–"}
.faq-item[open] summary{background:#F7FBE8}
.faq-body{
  padding:0 12px 22px 52px;color:var(--text-2);font-size:15.5px;line-height:1.85;
}
.faq-note{margin-top:22px;font-size:14px;color:var(--text-2)}
.faq-note a{color:var(--brand-pulse);font-weight:600}
.faq-note a:hover{text-decoration:underline}

/* ===================== CTA 深色带 ===================== */
.cta-band{
  position:relative;overflow:hidden;background:var(--brand-ink);color:#fff;
  border-radius:24px;padding:56px;display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,.95fr);gap:48px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:22px 22px;opacity:.28;
}
.cta-copy,.cta-form{position:relative;z-index:2}
.cta-copy h3{font-size:clamp(22px,2.4vw,30px);font-weight:800;line-height:1.35;letter-spacing:-.01em}
.cta-copy p{margin-top:14px;color:rgba(255,255,255,.76);font-size:15.5px}
.cta-checks{margin-top:22px;display:grid;gap:12px}
.cta-checks li{display:flex;gap:10px;font-size:15px;color:rgba(255,255,255,.88)}
.cta-checks i{color:var(--brand-beat);margin-top:8px;font-size:12px}

.cta-form .field-label{display:block;font-size:14px;color:rgba(255,255,255,.78);margin-bottom:8px}
.cta-form input[type="text"]{
  width:100%;height:52px;padding:0 16px;border-radius:var(--radius-input);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.24);
  color:#fff;outline:none;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.cta-form input[type="text"]::placeholder{color:rgba(255,255,255,.5)}
.cta-form input[type="text"]:focus{border-color:var(--brand-beat);background:rgba(255,255,255,.12)}
.cta-form .btn{margin-top:16px;width:100%}
.form-hint{margin-top:14px;font-size:12.5px;color:rgba(255,255,255,.56);line-height:1.7}
.form-hint a{color:rgba(255,255,255,.8);text-decoration:underline}

/* ===================== 页脚 ===================== */
.site-footer{background:var(--brand-ink);color:rgba(255,255,255,.72);padding:74px 0 28px;margin-top:96px}
.ft-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:42px}
.ft-brand .logo{display:inline-flex;align-items:center;gap:10px}
.ft-brand .logo span:last-child{color:#fff;font-size:19px;font-weight:800;letter-spacing:-.02em}
.ft-brand .logo-mark i{background:rgba(255,255,255,.85)}
.ft-brand .logo-mark i:nth-child(2){background:var(--brand-beat)}
.ft-brand p{margin-top:16px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.66);max-width:340px}
.contact{margin-top:18px;display:grid;gap:8px;font-size:13.5px;color:rgba(255,255,255,.6)}
.ft-col h3{font-size:15px;font-weight:700;color:#fff;letter-spacing:.02em;margin-bottom:16px}
.ft-col ul{display:grid;gap:11px}
.ft-col a{display:inline-block;font-size:14px;color:rgba(255,255,255,.72)}
.ft-col a:hover{color:var(--brand-beat);transform:translateX(2px)}
.ft-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}
.dots{display:inline-flex;gap:3px;align-items:center;margin-right:8px;vertical-align:middle}
.dots i{width:4px;height:4px;border-radius:50%;background:var(--brand-beat);display:block;opacity:.8}

/* ===================== 响应式 ===================== */
@media (max-width:1199px){
  .nav-search{display:none}
}
@media (max-width:991px){
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .nav-wrap{height:64px}
  .section{padding:72px 0}
  .two-col{grid-template-columns:minmax(0,1fr);gap:36px}
  .aside-sticky{position:static}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .band-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{grid-template-columns:minmax(0,1fr);padding:44px 36px;gap:34px}
  .ft-grid{grid-template-columns:1fr 1fr;gap:34px}
  .hero-card{padding:52px 40px}
  .hero-badge{right:34px;top:34px;width:58px;height:58px;font-size:14px}
  .hero-bars{right:36px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .method-grid{grid-template-columns:minmax(0,1fr)}
  .band{padding:36px 24px}
  .band-grid{grid-template-columns:minmax(0,1fr)}
  .hero-card{padding:40px 24px;min-height:0;border-radius:20px}
  .hero-badge{display:none}
  .hero-bars{right:20px;opacity:.7}
  .hero-bars i:nth-child(2){height:74px}
  .cta-band{padding:36px 24px;border-radius:20px}
  .faq-body{padding-left:12px}
  .tl-item{padding-left:56px}
  .timeline::before{left:17px}
  .tl-num{width:36px;height:36px;font-size:14px}
}
@media (max-width:575px){
  body{font-size:15.5px}
  .brand-name{font-size:17px}
  .scene-grid{grid-template-columns:minmax(0,1fr)}
  .hero-bars{display:none}
  .hero-actions .btn{width:100%}
  .ft-grid{grid-template-columns:minmax(0,1fr)}
  .ft-bottom{flex-direction:column;gap:8px}
  .method-row{flex-direction:column;gap:4px}
  .method-row span:first-child{flex:none}
}

/* roulang page: category3 */
:root{
  --brand-ink:#14101C;
  --brand-beat:#C9F24D;
  --brand-pulse:#FF5A2E;
  --brand-focus:#5B3DF5;
  --bg:#FBFAF7;
  --bg-alt:#F1EFE9;
  --surface:#FFFFFF;
  --text:#1B1723;
  --text-2:#5A5566;
  --line:#E4E1DA;
  --ok:#1FA97A;
  --warn:#D64545;
  --radius-card:16px;
  --radius-img:14px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(20,16,28,.06), 0 8px 24px -12px rgba(20,16,28,.12);
  --shadow-2:0 12px 32px -10px rgba(20,16,28,.20);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  font-feature-settings:"tnum";
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--text);text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease);}
a:hover{color:var(--brand-pulse);}
h1,h2,h3,h4,h5{font-family:var(--font-cn);color:var(--brand-ink);margin:0;font-feature-settings:"tnum";}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-focus);outline-offset:2px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:104px 0;}
.section-alt{background:var(--bg-alt);}
.section-head{max-width:760px;margin-bottom:52px;}
.section-title{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.28;letter-spacing:-.01em;}
.section-desc{margin-top:16px;color:var(--text-2);font-size:16.5px;max-width:680px;}
.kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--text-2);margin-bottom:16px;text-transform:uppercase;
}
.kicker::before{content:"";width:24px;height:3px;border-radius:2px;background:var(--brand-beat);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(20,16,28,.04);
  transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 8px 24px -14px rgba(20,16,28,.30);}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{display:inline-flex;align-items:flex-end;gap:3px;height:22px;}
.logo-mark i{display:block;width:4px;border-radius:2px;}
.logo-mark i:nth-child(1){height:12px;background:var(--brand-pulse);}
.logo-mark i:nth-child(2){height:21px;background:var(--brand-beat);}
.logo-mark i:nth-child(3){height:16px;background:var(--brand-ink);}
.brand-name{font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--brand-ink);}
.main-nav{display:flex;align-items:center;gap:6px;flex:1 1 auto;}
.nav-link{
  position:relative;padding:8px 12px;border-radius:10px;
  font-size:15px;font-weight:600;color:var(--text-2);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:2px;background:var(--brand-beat);transform:scaleX(0);
  transform-origin:left;transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--brand-ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-ink);background:#F7FBE8;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  background:var(--bg-alt);border-radius:999px;color:var(--text-2);
  transition:box-shadow .2s var(--ease),background-color .2s var(--ease);
}
.nav-search i{font-size:14px;}
.nav-search input{
  border:0;background:transparent;outline:none;font-size:14px;color:var(--text);
  width:130px;padding:0;
}
.nav-search input::placeholder{color:#9A95A6;}
.nav-search:focus-within{background:#fff;box-shadow:inset 0 0 0 1.5px var(--brand-beat);}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;
  border-radius:12px;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-ink);transition:transform .2s var(--ease),opacity .2s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- buttons / badges ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1;cursor:pointer;
  transition:transform .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn-pulse{background:var(--brand-pulse);color:#fff;}
.btn-pulse:hover{background:#E94A1E;color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px -12px rgba(255,90,46,.65);}
.btn-pulse:active{transform:translateY(0);filter:brightness(.95);}
.btn-dark{background:var(--brand-ink);color:#fff;}
.btn-dark:hover{background:#241D33;color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px -14px rgba(20,16,28,.6);}
.btn-dark:active{transform:translateY(0);}
.btn-outline{background:#fff;border-color:var(--line);color:var(--brand-ink);}
.btn-outline:hover{background:var(--brand-ink);border-color:var(--brand-ink);color:#fff;transform:translateY(-2px);}
.btn-outline:active{transform:translateY(0);}
.btn-beat{background:var(--brand-beat);color:var(--brand-ink);}
.btn-beat:hover{background:#B9E63A;color:var(--brand-ink);transform:translateY(-2px);box-shadow:0 12px 26px -14px rgba(201,242,77,.9);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-lg{height:52px;padding:0 32px;font-size:16px;}
.btn-block{width:100%;}

.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:999px;font-size:12.5px;font-weight:700;letter-spacing:.02em;
}
.badge-free{background:#fff;border:1px solid var(--line);color:var(--text-2);}
.badge-hot{background:var(--brand-beat);color:var(--brand-ink);}
.badge-tier{background:var(--brand-ink);color:var(--brand-beat);}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,16,28,.5);opacity:0;visibility:hidden;
  transition:opacity .25s var(--ease),visibility .25s var(--ease);z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;background:#fff;z-index:95;
  transform:translateX(102%);transition:transform .28s var(--ease);
  padding:24px 20px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;
  border-left:1px solid var(--line);
}
.nav-drawer.is-open{transform:translateX(0);}
.nav-drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer-close{width:38px;height:38px;border-radius:12px;border:1px solid var(--line);background:#fff;cursor:pointer;color:var(--brand-ink);}
.nav-drawer .nav-link{display:block;padding:13px 12px;font-size:16px;border-radius:12px;}
.nav-drawer .nav-link::after{display:none;}
.nav-drawer .nav-search{width:100%;margin:10px 0 6px;}
.nav-drawer .nav-search input{width:100%;}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:var(--bg);
  padding:56px 0 84px;
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(20,16,28,.5) 1px, transparent 1px);
  background-size:22px 22px;opacity:.06;pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--text-2);margin-bottom:26px;
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--brand-pulse);}
.breadcrumb .sep{color:#BDB8C6;}
.breadcrumb .current{color:var(--brand-ink);font-weight:600;}
.hero-grid{display:flex;flex-wrap:wrap;align-items:center;gap:48px;}
.hero-copy{flex:1 1 460px;min-width:0;}
.hero-title{
  font-size:clamp(28px,4.2vw,48px);font-weight:800;line-height:1.2;letter-spacing:-.02em;
}
.hero-title .accent{
  background:linear-gradient(transparent 62%, var(--brand-beat) 62%);
  padding:0 2px;
}
.hero-sub{margin-top:20px;font-size:18px;color:var(--text-2);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:26px;margin-top:34px;}
.hero-meta-item{display:flex;flex-direction:column;gap:2px;min-width:120px;}
.hero-meta-num{font-size:26px;font-weight:800;color:var(--brand-ink);letter-spacing:-.01em;}
.hero-meta-label{font-size:13px;color:var(--text-2);}
.hero-visual{flex:1 1 380px;min-width:0;position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;
  box-shadow:var(--shadow-2);
}
.hero-bars{position:absolute;left:22px;bottom:-14px;display:flex;align-items:flex-end;gap:6px;height:64px;}
.hero-bars i{display:block;width:8px;border-radius:4px;}
.hero-bars i:nth-child(1){height:26px;background:var(--brand-pulse);}
.hero-bars i:nth-child(2){height:52px;background:var(--brand-beat);}
.hero-bars i:nth-child(3){height:38px;background:var(--brand-ink);}
.hero-badge{
  position:absolute;right:20px;top:18px;
  display:inline-flex;align-items:center;justify-content:center;
  min-width:64px;height:64px;border-radius:999px;background:var(--brand-ink);color:var(--brand-beat);
  font-size:22px;font-weight:800;letter-spacing:-.02em;
  box-shadow:0 10px 24px -12px rgba(20,16,28,.7);
}

/* ---------- tier ladder ---------- */
.tier-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;align-items:end;}
.tier-card{
  position:relative;display:flex;flex-direction:column;gap:16px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 24px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.tier-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#D6D1C6;}
.tier-card:nth-child(1){min-height:352px;}
.tier-card:nth-child(2){min-height:388px;}
.tier-card:nth-child(3){min-height:424px;}
.tier-card:nth-child(4){min-height:460px;}
.tier-card.is-featured{
  background:var(--brand-ink);border-color:var(--brand-beat);
  box-shadow:0 18px 40px -22px rgba(20,16,28,.8);
}
.tier-card.is-featured .tier-name,
.tier-card.is-featured .tier-price,
.tier-card.is-featured .tier-desc{color:#fff;}
.tier-card.is-featured .tier-desc{color:rgba(255,255,255,.72);}
.tier-card.is-featured .tick-list li{color:rgba(255,255,255,.86);}
.tier-corner{
  position:absolute;top:-13px;right:18px;
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-beat);color:var(--brand-ink);font-size:12.5px;font-weight:800;
}
.tier-name{font-size:20px;font-weight:700;}
.tier-price{display:flex;align-items:baseline;gap:6px;font-size:32px;font-weight:800;letter-spacing:-.02em;line-height:1.1;}
.tier-price small{font-size:14px;font-weight:600;color:var(--text-2);}
.tier-desc{font-size:14.5px;color:var(--text-2);line-height:1.7;}
.tick-list{display:flex;flex-direction:column;gap:10px;margin-top:auto;}
.tick-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--text-2);line-height:1.65;}
.tick{
  flex:0 0 auto;width:18px;height:18px;margin-top:3px;border-radius:50%;
  background:var(--brand-beat);color:var(--brand-ink);
  display:grid;place-items:center;font-size:10px;
}
.tier-card .btn{margin-top:8px;}
.tier-note{margin-top:28px;font-size:13.5px;color:var(--text-2);}

/* ---------- compare table ---------- */
.compare-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:8px 28px 20px;box-shadow:var(--shadow-1);}
.compare-caption{font-size:13.5px;color:var(--text-2);padding:16px 0 6px;}
.compare-table{width:100%;border-collapse:collapse;}
.compare-table th,.compare-table td{padding:17px 14px;border-bottom:1px solid var(--line);text-align:center;font-size:15px;color:var(--text-2);}
.compare-table thead th{color:var(--brand-ink);font-weight:700;font-size:15px;background:transparent;}
.compare-table thead th:first-child,
.compare-table tbody th{text-align:left;}
.compare-table tbody th{font-weight:600;color:var(--brand-ink);}
.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td{border-bottom:0;}
.compare-table .col-featured{background:#F7FBE8;}
.compare-table thead .col-featured{position:relative;}
.compare-table thead .col-featured::after{
  content:"推荐";position:absolute;left:50%;top:-11px;transform:translateX(-50%);
  background:var(--brand-ink);color:var(--brand-beat);font-size:11.5px;font-weight:700;
  padding:2px 10px;border-radius:999px;letter-spacing:.04em;
}
.compare-table .yes{color:var(--ok);font-weight:700;}
.compare-table .no{color:#C4BFCC;}
.compare-foot{padding:18px 0 6px;font-size:13.5px;color:var(--text-2);}
.compare-foot a{color:var(--brand-ink);font-weight:600;border-bottom:1px solid var(--brand-beat);}
.compare-foot a:hover{color:var(--brand-pulse);border-color:var(--brand-pulse);}
.compare-mobile{display:none;}

/* ---------- split feature ---------- */
.split{display:flex;flex-wrap:wrap;gap:48px;align-items:center;}
.split-media{flex:1 1 400px;min-width:0;}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-img);box-shadow:var(--shadow-1);}
.split-body{flex:1 1 420px;min-width:0;}
.split-list{display:grid;gap:18px;margin-top:26px;}
.split-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px 22px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.split-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.split-item h3{font-size:18px;font-weight:700;margin-bottom:8px;}
.split-item p{font-size:14.5px;color:var(--text-2);margin:0;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.step{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px 22px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;background:var(--brand-ink);color:var(--brand-beat);
  font-size:15px;font-weight:800;margin-bottom:16px;
}
.step h3{font-size:17.5px;font-weight:700;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--text-2);margin:0;}
.step-line{position:absolute;left:0;top:44px;height:3px;width:100%;background:transparent;}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line);max-width:880px;}
.faq-item{border-bottom:1px solid var(--line);transition:background-color .2s var(--ease);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;
  padding:22px 6px;font-size:17px;font-weight:600;color:var(--brand-ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-mark{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  background:var(--brand-beat);color:var(--brand-ink);
  display:grid;place-items:center;font-size:15px;font-weight:800;line-height:1;
}
.faq-item[open]{background:#F7FBE8;}
.faq-item[open] .faq-mark{background:var(--brand-ink);color:var(--brand-beat);}
.faq-answer{padding:0 6px 24px 48px;color:var(--text-2);font-size:16px;line-height:1.85;}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand-ink);border-radius:24px;padding:56px 48px;color:#fff;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle, rgba(201,242,77,.20), transparent 68%);
}
.cta-grid{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:44px;align-items:center;}
.cta-copy{flex:1 1 400px;min-width:0;}
.cta-copy h2{color:#fff;font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.32;}
.cta-copy p{color:rgba(255,255,255,.72);margin-top:14px;font-size:15.5px;}
.cta-points{display:grid;gap:12px;margin-top:24px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;color:rgba(255,255,255,.88);font-size:15px;}
.cta-points .tick{margin-top:4px;}
.cta-form{flex:1 1 360px;min-width:0;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:20px;padding:28px 24px;}
.cta-form label{display:block;font-size:14px;color:rgba(255,255,255,.78);margin-bottom:10px;}
.cta-input{
  width:100%;height:48px;border-radius:var(--radius-input);border:1px solid rgba(255,255,255,.24);
  background:#fff;color:var(--text);padding:0 14px;font-size:15px;outline:none;
  transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.cta-input:focus{border-color:var(--brand-beat);box-shadow:0 0 0 1.5px var(--brand-beat);}
.cta-form .btn{margin-top:16px;}
.form-note{margin-top:14px;font-size:12.5px;color:rgba(255,255,255,.6);line-height:1.7;}
.form-error{display:none;margin-top:12px;font-size:13px;color:#FFB3A0;}
.form-error.is-show{display:flex;align-items:center;gap:8px;}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-ink);color:#fff;margin-top:0;padding:72px 0 0;}
.ft-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;}
.ft-brand .logo{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;}
.ft-brand p{color:rgba(255,255,255,.66);font-size:14.5px;margin:16px 0 0;max-width:340px;line-height:1.8;}
.ft-brand .contact{display:grid;gap:6px;margin-top:18px;font-size:13.5px;color:rgba(255,255,255,.6);}
.ft-col h3{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;}
.ft-col ul{display:grid;gap:11px;}
.ft-col a{color:rgba(255,255,255,.72);font-size:14.5px;display:inline-block;transition:color .2s var(--ease),transform .2s var(--ease);}
.ft-col a:hover{color:var(--brand-beat);transform:translateX(2px);}
.ft-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(255,255,255,.12);margin-top:56px;padding:22px 0 28px;
  font-size:13px;color:rgba(255,255,255,.56);
}
.ft-bottom .dots{display:inline-flex;align-items:flex-end;gap:3px;height:12px;margin-right:8px;vertical-align:middle;}
.ft-bottom .dots i{display:block;width:3px;border-radius:2px;background:var(--brand-beat);}
.ft-bottom .dots i:nth-child(1){height:7px;background:var(--brand-pulse);}
.ft-bottom .dots i:nth-child(2){height:12px;}
.ft-bottom .dots i:nth-child(3){height:9px;background:rgba(255,255,255,.5);}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .section{padding:88px 0;}
  .tier-grid{grid-template-columns:repeat(2,1fr);align-items:stretch;}
  .tier-card{min-height:auto !important;}
  .steps{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991px){
  .main-nav{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{height:64px;gap:16px;}
  .nav-search{display:none;}
  .section{padding:76px 0;}
  .hero{padding:44px 0 72px;}
  .hero-grid{gap:36px;}
  .cta-band{padding:44px 28px;border-radius:20px;}
  .ft-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .compare-wrap{padding:8px 18px 16px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .section{padding:64px 0;}
  .container{padding:0 16px;}
  .hero-title{font-size:28px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{flex:1 1 auto;}
  .tier-grid{grid-template-columns:1fr;gap:18px;}
  .tier-card{padding:24px 20px;border-radius:14px;}
  .compare-desktop{display:none;}
  .compare-mobile{display:grid;gap:16px;padding:8px 0 4px;}
  .mini-tier{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px 18px;box-shadow:var(--shadow-1);}
  .mini-tier.is-featured{border-color:var(--brand-beat);background:#F7FBE8;}
  .mini-tier h3{display:flex;justify-content:space-between;align-items:baseline;gap:10px;font-size:17px;font-weight:700;margin-bottom:12px;}
  .mini-tier h3 span{font-size:15px;font-weight:800;color:var(--brand-pulse);}
  .mini-tier ul{display:grid;gap:9px;}
  .mini-tier li{display:flex;justify-content:space-between;gap:12px;font-size:14px;color:var(--text-2);border-bottom:1px dashed var(--line);padding-bottom:8px;}
  .mini-tier li:last-child{border-bottom:0;padding-bottom:0;}
  .mini-tier li b{color:var(--brand-ink);font-weight:600;}
  .steps{grid-template-columns:1fr;}
  .split{gap:28px;}
  .cta-band{padding:32px 20px;border-radius:16px;}
  .cta-form{padding:22px 18px;}
  .faq-item summary{font-size:16px;padding:18px 2px;}
  .faq-answer{padding:0 2px 20px 42px;font-size:15px;}
  .ft-grid{grid-template-columns:1fr;gap:26px;}
  .ft-col ul{gap:9px;}
  .ft-bottom{flex-direction:column;align-items:flex-start;margin-top:36px;}
  .hero-visual img{border-radius:14px;}
  .hero-badge{min-width:54px;height:54px;font-size:18px;top:12px;right:12px;}
}
@media (max-width:519px){
  .hero-meta{gap:18px;}
  .hero-meta-item{min-width:96px;}
  .section-head{margin-bottom:36px;}
  .compare-wrap{padding:4px 12px 12px;}
}

/* roulang page: category4 */
/* ============ 设计变量 ============ */
:root{
  --brand-ink:#14101C;
  --brand-beat:#C9F24D;
  --brand-pulse:#FF5A2E;
  --brand-focus:#5B3DF5;
  --bg:#FBFAF7;
  --bg-alt:#F1EFE9;
  --surface:#FFFFFF;
  --text:#1B1723;
  --text-2:#5A5566;
  --line:#E4E1DA;
  --ok:#1FA97A;
  --warn:#D64545;
  --r-card:16px;
  --r-img:14px;
  --r-input:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,16,28,.06), 0 8px 24px -12px rgba(20,16,28,.12);
  --sh-2:0 12px 32px -10px rgba(20,16,28,.20);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sp-sec:96px;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-feature-settings:"tnum";
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease)}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;color:var(--brand-ink);font-weight:700;line-height:1.25;letter-spacing:-.015em}
h1{font-size:clamp(28px,4vw,48px);font-weight:800;line-height:1.2;letter-spacing:-.02em}
h2{font-size:clamp(22px,2.6vw,32px);font-weight:700}
h3{font-size:20px;font-weight:600}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button{cursor:pointer;border:0;background:none;color:inherit}
:focus-visible{outline:2px solid var(--brand-focus);outline-offset:2px;border-radius:4px}
::selection{background:var(--brand-beat);color:var(--brand-ink)}

/* ============ 容器与板块 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--sp-sec) 0}
.section-alt{background:var(--bg-alt)}
.section-tight{padding:64px 0}
.sec-head{max-width:760px;margin-bottom:40px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:700;letter-spacing:.1em;
  color:var(--text-2);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--brand-beat)}
.sec-head h2{margin-bottom:14px}
.sec-sub{color:var(--text-2);font-size:16px;margin:0;max-width:680px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;line-height:1.2;
  border:1.5px solid transparent;white-space:nowrap;
  transition:all .2s var(--ease);
}
.btn i{font-size:14px}
.btn-primary{background:var(--brand-pulse);color:#fff;box-shadow:0 8px 20px -10px rgba(255,90,46,.7)}
.btn-primary:hover{background:#E84A20;transform:translateY(-2px);box-shadow:0 12px 26px -10px rgba(255,90,46,.75)}
.btn-primary:active{transform:translateY(0);filter:brightness(.94)}
.btn-beat{background:var(--brand-beat);color:var(--brand-ink)}
.btn-beat:hover{background:#BBE63C;transform:translateY(-2px);box-shadow:0 12px 26px -12px rgba(201,242,77,.9)}
.btn-beat:active{transform:translateY(0);filter:brightness(.95)}
.btn-ghost{border-color:var(--line);color:var(--brand-ink);background:var(--surface)}
.btn-ghost:hover{background:var(--brand-ink);border-color:var(--brand-ink);color:#fff;transform:translateY(-2px)}
.btn-ghost-light{border-color:rgba(255,255,255,.4);color:#fff;background:transparent}
.btn-ghost-light:hover{background:#fff;color:var(--brand-ink);border-color:#fff;transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand-focus);font-weight:700;font-size:14px;
}
.btn-link:hover{color:var(--brand-pulse);gap:10px}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:700;line-height:1.6;white-space:nowrap;
}
.badge-free{background:transparent;border:1px solid var(--line);color:var(--text-2)}
.badge-hot{background:var(--brand-beat);color:var(--brand-ink)}
.badge-level{background:var(--brand-ink);color:var(--brand-beat)}
.badge-soft{background:rgba(91,61,245,.09);color:var(--brand-focus)}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 22px -14px rgba(20,16,28,.35)}
.header-inner{display:flex;align-items:center;gap:18px;height:72px}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:800;letter-spacing:-.01em;
  color:var(--brand-ink);white-space:nowrap;
}
.brand:hover{color:var(--brand-ink)}
.logo-mark{display:inline-flex;align-items:flex-end;gap:3px;height:22px}
.logo-mark i{display:block;width:4px;border-radius:2px;background:var(--brand-ink)}
.logo-mark i:nth-child(1){height:10px;background:var(--brand-pulse)}
.logo-mark i:nth-child(2){height:16px;background:var(--brand-ink)}
.logo-mark i:nth-child(3){height:22px;background:var(--brand-beat)}

.main-nav{display:flex;align-items:center;gap:2px;margin-left:10px}
.nav-link{
  padding:9px 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--text-2);
  position:relative;white-space:nowrap;
}
.nav-link:hover{color:var(--brand-ink);background:var(--bg-alt)}
.nav-link.is-active{color:var(--brand-ink);font-weight:700;background:rgba(201,242,77,.32)}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-search{
  display:flex;align-items:center;gap:6px;
  height:40px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--bg-alt);border:1.5px solid transparent;
  transition:all .2s var(--ease);
}
.nav-search:focus-within{background:#fff;border-color:var(--brand-beat)}
.nav-search button{color:var(--text-2);font-size:14px;display:inline-flex}
.nav-search button:hover{color:var(--brand-ink)}
.nav-search input{
  border:0;background:transparent;outline:none;
  font-size:14px;color:var(--text);width:138px;
}
.nav-search input::placeholder{color:#9A94A6}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  margin-left:auto;background:var(--bg-alt);
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-ink);transition:all .25s var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-mask{
  position:fixed;inset:0;background:rgba(20,16,28,.5);
  z-index:65;opacity:0;pointer-events:none;transition:opacity .25s var(--ease);
}
.nav-mask.is-open{opacity:1;pointer-events:auto}

/* ============ 首屏横幅 ============ */
.page-hero{position:relative;overflow:hidden;background:var(--brand-ink);color:#fff;padding:66px 0 74px}
.page-hero .hero-bg{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;z-index:0;opacity:.5;
}
.page-hero .hero-veil{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(100deg,rgba(20,16,28,.96) 12%,rgba(20,16,28,.82) 52%,rgba(20,16,28,.6) 100%);
}
.page-hero .hero-inner{position:relative;z-index:2;max-width:820px}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.68);margin-bottom:20px;
}
.crumbs a{color:rgba(255,255,255,.68)}
.crumbs a:hover{color:var(--brand-beat)}
.crumbs span.sep{opacity:.5}
.crumbs .current{color:rgba(255,255,255,.92);font-weight:600}
.page-hero h1{color:#fff;margin-bottom:18px}
.hero-sub{color:rgba(255,255,255,.78);font-size:17px;max-width:680px;margin-bottom:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.hero-tags span{
  padding:6px 14px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.14);
  color:rgba(255,255,255,.88);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:44px;
  padding-top:28px;border-top:1px solid rgba(255,255,255,.14);
}
.hero-stats .stat b{
  display:block;font-size:28px;font-weight:800;color:var(--brand-beat);
  letter-spacing:-.02em;line-height:1.2;
}
.hero-stats .stat span{font-size:13.5px;color:rgba(255,255,255,.66)}

/* ============ 速查卡 ============ */
.quick-grid{margin-top:0}
.quick-card{
  height:100%;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;gap:12px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.quick-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D8D4CA}
.quick-card .q-icon{
  width:44px;height:44px;border-radius:13px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;color:var(--brand-ink);background:rgba(201,242,77,.55);
}
.quick-card h3{font-size:18px;margin-bottom:2px}
.quick-card p{font-size:14.5px;color:var(--text-2);margin:0;line-height:1.8}
.quick-card .q-link{margin-top:auto;padding-top:6px}

/* ============ 目录 + FAQ ============ */
.faq-layout{align-items:flex-start}
.toc{
  position:sticky;top:96px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px 20px;box-shadow:var(--sh-1);
}
.toc-title{
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--text-2);
  margin:0 0 14px;text-transform:uppercase;
}
.toc-list{display:flex;flex-direction:column;gap:4px}
.toc-link{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:10px 12px;border-radius:10px;
  font-size:14.5px;color:var(--text-2);font-weight:500;
}
.toc-link:hover{background:var(--bg-alt);color:var(--brand-ink);transform:translateX(2px)}
.toc-link .cnt{font-size:12px;color:#918B9E}
.toc-tip{
  margin-top:16px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13.5px;color:var(--text-2);
}
.toc-tip a{color:var(--brand-focus);font-weight:700}
.toc-tip a:hover{color:var(--brand-pulse)}

.faq-group{margin-bottom:34px;scroll-margin-top:100px}
.faq-group:last-child{margin-bottom:0}
.group-title{
  display:flex;align-items:center;gap:12px;
  font-size:21px;font-weight:700;color:var(--brand-ink);
  margin-bottom:8px;
}
.group-title::before{
  content:"";width:4px;height:22px;border-radius:2px;background:var(--brand-beat);
}
.group-count{font-size:13px;color:var(--text-2);font-weight:500;margin:0 0 14px 16px}
.qa{
  border-bottom:1px solid var(--line);
  background:transparent;transition:background .2s var(--ease);
}
.qa:first-of-type{border-top:1px solid var(--line)}
.qa[open]{background:#F7FBE8;border-radius:12px;border-bottom-color:transparent}
.qa summary{
  display:flex;align-items:flex-start;gap:14px;
  padding:18px 16px;cursor:pointer;list-style:none;
  font-size:16.5px;font-weight:600;color:var(--brand-ink);line-height:1.6;
}
.qa summary::-webkit-details-marker{display:none}
.qa summary:hover{color:var(--brand-pulse)}
.qa summary .mk{
  flex:0 0 auto;width:24px;height:24px;margin-top:2px;
  border-radius:50%;background:var(--brand-beat);color:var(--brand-ink);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;line-height:1;
}
.qa summary .mk::after{content:"+"}
.qa[open] summary .mk::after{content:"−"}
.qa-body{padding:0 16px 20px 54px;color:var(--text-2);font-size:15.5px;line-height:1.85}
.qa-body p:last-child{margin-bottom:0}
.qa-body strong{color:var(--brand-ink)}

/* ============ 规则要点 ============ */
.rule-visual{position:relative;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1)}
.rule-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s var(--ease)}
.rule-visual:hover img{transform:scale(1.03)}
.rule-badge{
  position:absolute;left:18px;top:18px;
  padding:7px 14px;border-radius:var(--r-pill);
  background:var(--brand-ink);color:var(--brand-beat);
  font-size:12.5px;font-weight:700;letter-spacing:.04em;
}
.rule-list{display:flex;flex-direction:column;gap:16px;margin:24px 0 30px}
.rule-list li{display:flex;gap:13px;font-size:15.5px;color:var(--text-2);line-height:1.8}
.rule-list li i{
  flex:0 0 auto;margin-top:6px;color:var(--ok);font-size:14px;
}
.rule-list li b{color:var(--brand-ink)}

/* ============ CTA ============ */
.cta-band{
  position:relative;background:var(--brand-ink);color:#fff;
  border-radius:24px;overflow:hidden;padding:56px 48px;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-70px;
  width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,rgba(201,242,77,.22),transparent 68%);
  pointer-events:none;
}
.cta-band h2{color:#fff;margin-bottom:14px}
.cta-band p{color:rgba(255,255,255,.74);font-size:15.5px;margin-bottom:22px}
.cta-checks{display:flex;flex-direction:column;gap:11px;margin-bottom:0}
.cta-checks li{display:flex;align-items:center;gap:11px;font-size:15px;color:rgba(255,255,255,.9)}
.cta-checks li i{color:var(--brand-beat);font-size:13px}
.join-form{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.1);
  border-radius:18px;padding:28px 26px;
}
.join-form label{display:block;font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:9px;font-weight:600}
.join-form input{
  width:100%;height:50px;padding:0 16px;margin-bottom:16px;
  border-radius:var(--r-input);border:1.5px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.08);color:#fff;font-size:15px;outline:none;
  transition:all .2s var(--ease);
}
.join-form input::placeholder{color:rgba(255,255,255,.42)}
.join-form input:focus{border-color:var(--brand-beat);background:rgba(255,255,255,.14)}
.form-note{font-size:12px;color:rgba(255,255,255,.5);margin:14px 0 0;line-height:1.7}
.form-msg{
  font-size:13.5px;color:var(--brand-beat);margin:12px 0 0;display:none;
}
.form-msg.is-show{display:block}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-ink);color:#fff;padding:72px 0 0;margin-top:0}
.ft-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:52px;border-bottom:1px solid rgba(255,255,255,.1);
}
.ft-brand .logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:800;color:#fff;margin-bottom:16px;
}
.ft-brand .logo .logo-mark i:nth-child(2){background:#fff}
.ft-brand p{color:rgba(255,255,255,.66);font-size:14.5px;max-width:320px;line-height:1.85}
.ft-brand .contact{display:flex;flex-direction:column;gap:6px;font-size:13.5px;color:rgba(255,255,255,.55)}
.ft-col h3{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;letter-spacing:.02em}
.ft-col ul{display:flex;flex-direction:column;gap:11px}
.ft-col a{color:rgba(255,255,255,.72);font-size:14.5px;display:inline-block}
.ft-col a:hover{color:var(--brand-beat);transform:translateX(3px)}
.ft-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;
  padding:24px 0 32px;font-size:13px;color:rgba(255,255,255,.5);
}
.ft-bottom .dots{display:inline-flex;gap:3px;vertical-align:middle;margin-right:8px}
.ft-bottom .dots i{width:4px;height:4px;border-radius:50%;background:var(--brand-beat);display:block}
.ft-bottom .dots i:nth-child(2){background:var(--brand-pulse)}
.ft-bottom .dots i:nth-child(3){background:rgba(255,255,255,.5)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .nav-search input{width:112px}
}
@media (max-width:991px){
  :root{--sp-sec:72px}
  .container{padding:0 20px}
  .nav-toggle{display:inline-flex}
  .nav-wrap{
    position:fixed;top:0;right:-104%;z-index:70;
    width:min(88vw,344px);height:100vh;
    background:#fff;padding:88px 22px 30px;
    display:flex;flex-direction:column;gap:22px;
    overflow-y:auto;box-shadow:-24px 0 48px -22px rgba(20,16,28,.4);
    transition:right .3s var(--ease);
  }
  .nav-wrap.is-open{right:0}
  .main-nav{flex-direction:column;align-items:stretch;gap:6px;margin:0}
  .nav-link{padding:13px 16px;border-radius:12px;font-size:16px}
  .nav-tools{margin:0;flex-direction:column;align-items:stretch;gap:12px}
  .nav-search{width:100%;height:46px}
  .nav-search input{width:100%}
  .hero-stats{gap:32px}
  .toc{position:static;margin-bottom:26px}
  .toc-list{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:4px;scrollbar-width:thin}
  .toc-link{white-space:nowrap;background:var(--bg-alt);padding:8px 14px;border-radius:var(--r-pill)}
  .toc-link .cnt{display:none}
  .toc-tip{display:none}
  .cta-band{padding:42px 30px;border-radius:20px}
  .ft-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--sp-sec:64px}
  .container{padding:0 16px}
  .header-inner{height:60px}
  .brand{font-size:17px}
  .page-hero{padding:44px 0 52px}
  .hero-sub{font-size:15.5px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-stats{gap:24px;padding-top:22px}
  .hero-stats .stat b{font-size:23px}
  .cta-band{padding:34px 22px}
  .join-form{padding:22px 18px}
  .qa summary{font-size:15.5px;padding:16px 12px}
  .qa-body{padding:0 12px 18px 50px}
  .group-title{font-size:19px}
  .ft-grid{grid-template-columns:1fr;gap:30px}
  .ft-bottom{flex-direction:column;gap:8px}
}
@media (max-width:575px){
  :root{--sp-sec:56px}
  h1{font-size:28px}
  .btn{padding:12px 20px;font-size:14.5px}
  .quick-card{padding:22px 18px;border-radius:14px}
  .toc{border-radius:14px}
}