/* roulang page: index */
:root{
  --brand:#FF5A2B;
  --brand-dark:#E8461A;
  --brand-2:#2FD3A8;
  --warn:#FFC53D;
  --danger:#E0483C;
  --bg-dark:#171423;
  --bg-dark-2:#221B37;
  --bg:#F7F5F2;
  --white:#FFFFFF;
  --ink:#1D1A26;
  --ink-2:#6E6879;
  --line:#E6E2DC;
  --dark-line:rgba(255,255,255,.12);
  --dark-muted:#B6AFC7;
  --radius:16px;
  --radius-lg:20px;
  --radius-sm:12px;
  --radius-btn:999px;
  --radius-chip:8px;
  --shadow-1:0 1px 2px rgba(23,20,35,.06);
  --shadow-2:0 10px 28px rgba(23,20,35,.12);
  --shadow-3:0 12px 32px rgba(0,0,0,.35);
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:220ms;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:inherit;text-decoration:none;transition:color var(--t) var(--ease);}
img{display:block;max-width:100%;height:auto;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{border:0;background:none;cursor:pointer;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.sec-dark :focus-visible,.site-footer :focus-visible{outline-color:var(--brand-2);}

.container{max-width:var(--container);margin:0 auto;padding:0 20px;width:100%;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:10px 18px;border-radius:0 0 12px 0;z-index:999;}
.skip-link:focus{left:0;}

/* ============ 倒计时条 ============ */
.topbar-countdown{
  background:linear-gradient(90deg,#1B1729 0%,#241C3B 60%,#1B1729 100%);
  border-bottom:1px solid var(--dark-line);
  color:#fff;
}
.cd-inner{display:flex;align-items:center;gap:18px;min-height:48px;padding-top:6px;padding-bottom:6px;}
.cd-badge{
  background:var(--warn);color:#241C0A;font-size:12px;font-weight:700;
  padding:4px 12px;border-radius:var(--radius-chip);letter-spacing:.5px;white-space:nowrap;
}
.cd-text{font-size:13px;color:var(--dark-muted);white-space:nowrap;}
.cd-timer{display:flex;align-items:center;gap:6px;margin-left:auto;}
.cd-num{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:38px;height:32px;border-radius:var(--radius-chip);
  background:rgba(255,255,255,.08);border:1px solid var(--dark-line);
  color:#fff;font-size:18px;font-weight:700;font-variant-numeric:tabular-nums;
}
.cd-colon{color:var(--warn);font-weight:700;}
.cd-side{font-size:12px;color:var(--dark-muted);}
.btn-cd{
  background:var(--brand);color:#fff;font-size:13px;font-weight:600;
  padding:8px 18px;border-radius:var(--radius-btn);white-space:nowrap;
  transition:filter var(--t) var(--ease),transform var(--t) var(--ease);
}
.btn-cd:hover{filter:brightness(1.06);transform:translateY(-2px);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--bg-dark);
  transition:box-shadow var(--t) var(--ease);
}
.site-header.is-stuck{box-shadow:0 8px 24px rgba(0,0,0,.35);}
.brand-bar{
  height:64px;display:flex;align-items:center;
  border-bottom:1px solid var(--dark-line);
  transition:height var(--t) var(--ease);
}
.is-stuck .brand-bar{height:52px;}
.brand-inner{display:flex;align-items:center;gap:20px;width:100%;}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;background:var(--brand);
  color:#fff;font-weight:800;font-size:17px;display:flex;align-items:center;justify-content:center;
  letter-spacing:-1px;
}
.logo-text{color:#fff;font-size:17px;font-weight:700;letter-spacing:-.3px;white-space:nowrap;}
.logo-text em{font-style:normal;color:var(--brand-2);}
.nav-search{
  flex:1 1 auto;max-width:420px;display:flex;align-items:center;
  background:rgba(255,255,255,.07);border:1px solid var(--dark-line);
  border-radius:var(--radius-btn);padding:0 6px 0 16px;height:38px;
  transition:border-color var(--t) var(--ease),background var(--t) var(--ease);
}
.nav-search:focus-within{border-color:var(--brand);background:rgba(255,255,255,.1);}
.nav-search input{
  flex:1;border:0;background:transparent;color:#fff;font-size:13px;height:100%;
}
.nav-search input::placeholder{color:var(--dark-muted);}
.nav-search input:focus{outline:none;}
.nav-search button{
  width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  color:var(--dark-muted);transition:color var(--t) var(--ease),background var(--t) var(--ease);
}
.nav-search button:hover{color:#fff;background:rgba(255,255,255,.1);}
.hot-links{font-size:13px;color:var(--dark-muted);white-space:nowrap;}
.hot-links a{color:var(--dark-muted);margin-left:8px;}
.hot-links a:hover{color:var(--brand-2);}
.search-icon-btn{display:none;width:44px;height:44px;color:#fff;align-items:center;justify-content:center;}
.channel-bar{border-bottom:1px solid var(--dark-line);background:var(--bg-dark);}
.channel-inner{display:flex;align-items:center;gap:8px;}
.channel-list{display:flex;align-items:center;gap:28px;flex:1 1 auto;}
.channel-list a{
  position:relative;display:inline-flex;align-items:center;height:46px;
  color:var(--dark-muted);font-size:15px;font-weight:400;
}
.channel-list a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:transparent;
  border-radius:2px;transition:background var(--t) var(--ease);
}
.channel-list a:hover{color:#fff;}
.channel-list a.active{color:#fff;font-weight:600;}
.channel-list a.active::after{background:var(--brand);}
.channel-cta{
  flex:0 0 auto;background:var(--brand);color:#fff;font-size:14px;font-weight:600;
  padding:9px 20px;border-radius:var(--radius-btn);
  transition:filter var(--t) var(--ease),transform var(--t) var(--ease);
}
.channel-cta:hover{filter:brightness(1.06);transform:translateY(-2px);}
.search-overlay{
  position:fixed;inset:0;background:rgba(23,20,35,.96);z-index:200;
  display:flex;align-items:flex-start;justify-content:center;padding:80px 20px;
}
.search-overlay[hidden]{display:none;}
.search-overlay form{display:flex;gap:10px;width:100%;max-width:520px;}
.search-overlay input{
  flex:1;height:52px;border-radius:var(--radius-sm);border:1px solid var(--dark-line);
  background:rgba(255,255,255,.08);color:#fff;padding:0 16px;font-size:15px;
}
.search-overlay button{
  height:52px;padding:0 22px;border-radius:var(--radius-sm);background:var(--brand);
  color:#fff;font-weight:600;
}
.search-overlay .close-row{max-width:520px;color:var(--dark-muted);font-size:14px;margin-top:16px;text-align:right;}
.search-overlay .close-row button{height:auto;padding:0;background:none;color:var(--brand-2);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;font-size:15px;font-weight:600;border-radius:var(--radius-btn);
  transition:all var(--t) var(--ease);cursor:pointer;border:1px solid transparent;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(255,90,43,.28);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);color:#fff;}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.35);}
.btn-outline:hover{border-color:var(--brand-2);color:var(--brand-2);transform:translateY(-2px);}
.btn-light{background:var(--white);color:var(--ink);border-color:var(--line);box-shadow:var(--shadow-1);}
.btn-light:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--brand);padding:6px 0;border-radius:0;}
.btn-ghost:hover{color:var(--brand-dark);text-decoration:underline;}
.btn-ghost .arrow{transition:transform var(--t) var(--ease);}
.btn-ghost:hover .arrow{transform:translateX(4px);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}
.btn-block{width:100%;}

/* ============ Hero ============ */
.sec-dark{
  background:var(--bg-dark);
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:24px 24px;
  color:#fff;
  padding:64px 0;
}
.hero{padding-top:56px;padding-bottom:72px;}
.hero-grid{gap:40px;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--brand-2);
  border:1px solid rgba(47,211,168,.35);border-radius:var(--radius-btn);
  padding:5px 14px;margin-bottom:20px;background:rgba(47,211,168,.08);
}
.hero h1{
  font-size:clamp(28px,4.2vw,46px);line-height:1.25;letter-spacing:-.5px;font-weight:800;
  color:#fff;margin-bottom:18px;
}
.hero h1 .hl{color:var(--brand);}
.hero-sub{font-size:17px;color:var(--dark-muted);max-width:560px;margin-bottom:24px;line-height:1.85;}
.hero-points{display:flex;flex-direction:column;gap:12px;margin-bottom:32px;}
.hero-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:#E7E3F2;}
.hero-points svg{flex:0 0 20px;margin-top:5px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-lg);
  border:1px solid var(--dark-line);box-shadow:var(--shadow-3);
}
.hero-tag{
  position:absolute;top:16px;right:16px;
  background:var(--brand-2);color:#08231B;font-size:12px;font-weight:700;
  padding:5px 12px;border-radius:var(--radius-chip);
}
.hero-media-caption{
  margin-top:14px;font-size:13px;color:var(--dark-muted);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
}

/* ============ 通用板块 ============ */
.section{padding:56px 0;}
.section-light{background:var(--bg);color:var(--ink);}
.sec-head{margin-bottom:32px;}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;}
.sec-head h2{
  font-size:clamp(22px,2.6vw,32px);line-height:1.35;font-weight:800;letter-spacing:-.4px;
}
.sec-head h2::before{
  content:"";display:block;width:40px;height:3px;border-radius:3px;background:var(--brand);margin-bottom:14px;
}
.sec-head .lead{font-size:15px;color:var(--ink-2);margin-top:10px;max-width:720px;}
.sec-dark .sec-head h2{color:#fff;}
.sec-dark .sec-head .lead{color:var(--dark-muted);}
.sec-more{font-size:14px;font-weight:600;color:var(--brand);white-space:nowrap;}
.sec-more:hover{color:var(--brand-dark);}

/* ============ 活动卖点 2x2 错位 ============ */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.feature-card{
  position:relative;background:var(--bg-dark-2);border:1px solid var(--dark-line);
  border-radius:var(--radius);padding:26px 24px 24px;overflow:hidden;
  clip-path:polygon(16px 0,100% 0,100% 100%,0 100%,0 16px);
  transition:border-color var(--t) var(--ease),transform var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.feature-card:nth-child(2){margin-top:28px;}
.feature-card:nth-child(4){margin-top:28px;}
.feature-card:hover{border-color:var(--brand);transform:translateY(-4px);box-shadow:var(--shadow-3);}
.feature-num{
  font-size:44px;font-weight:800;line-height:1;color:rgba(255,255,255,.14);
  font-variant-numeric:tabular-nums;letter-spacing:-2px;margin-bottom:14px;
  transition:color var(--t) var(--ease);
}
.feature-card:hover .feature-num{color:var(--brand-2);}
.feature-icon{width:34px;height:34px;margin-bottom:14px;color:var(--brand);}
.feature-card h3{font-size:19px;font-weight:700;color:#fff;margin-bottom:8px;line-height:1.5;}
.feature-card p{font-size:14px;color:var(--dark-muted);line-height:1.8;}

/* ============ 亮点图墙 ============ */
.wall-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.wall-item{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--dark-line);
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.wall-item:nth-child(1),.wall-item:nth-child(2){grid-column:span 2;}
.wall-item:nth-child(7),.wall-item:nth-child(8){grid-column:span 2;}
.wall-item img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:filter var(--t) var(--ease);}
.wall-item:nth-child(1) img,.wall-item:nth-child(2) img,
.wall-item:nth-child(7) img,.wall-item:nth-child(8) img{aspect-ratio:16/9;}
.wall-mask{
  position:absolute;inset:auto 0 0 0;padding:20px 18px 16px;
  background:linear-gradient(to bottom,rgba(23,20,35,0),rgba(23,20,35,.85));
  color:#fff;
}
.wall-mask h3{font-size:17px;font-weight:700;line-height:1.5;margin-bottom:6px;}
.wall-mask span{
  display:inline-block;font-size:12px;color:#08231B;background:var(--brand-2);
  padding:3px 10px;border-radius:var(--radius-chip);font-weight:600;
}
.wall-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);}
.wall-item:hover img{filter:brightness(.85);}

/* ============ 数据条 ============ */
.stats-bar{
  border-top:1px solid var(--dark-line);border-bottom:1px solid var(--dark-line);
  padding:34px 0;margin-top:8px;
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.stat-item{text-align:center;padding:0 12px;}
.stat-item + .stat-item{border-left:1px solid var(--dark-line);}
.stat-num{
  font-size:clamp(24px,3vw,34px);font-weight:800;color:var(--brand);
  font-variant-numeric:tabular-nums;line-height:1.2;letter-spacing:-.5px;
}
.stat-label{font-size:13px;color:var(--dark-muted);margin-top:6px;}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.news-card{
  display:flex;flex-direction:column;background:var(--white);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#DAD4CB;}
.news-thumb{display:block;overflow:hidden;background:#EFEBE5;}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform var(--t) var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:20px 20px 18px;display:flex;flex-direction:column;flex:1;}
.news-title{font-size:18px;font-weight:700;line-height:1.55;margin-bottom:10px;}
.news-card:hover .news-title a{color:var(--brand);}
.news-title a{display:block;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;}
.news-desc{
  font-size:14px;color:var(--ink-2);line-height:1.7;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-2);padding-top:14px;border-top:1px solid var(--line);
}
.chip{
  display:inline-block;font-size:12px;font-weight:600;color:var(--brand);
  background:rgba(255,90,43,.1);border-radius:var(--radius-chip);padding:3px 10px;
}
.news-more{margin-left:auto;font-weight:600;color:var(--ink);display:inline-flex;align-items:center;gap:6px;}
.news-more .arrow{transition:transform var(--t) var(--ease);}
.news-card:hover .news-more{color:var(--brand);}
.news-card:hover .news-more .arrow{transform:translateX(4px);}
.empty-state{
  max-width:560px;margin:0 auto;text-align:center;padding:24px 20px;
  background:var(--white);border:1px dashed var(--line);border-radius:var(--radius);
}
.empty-state svg{color:#C9C2BA;margin:0 auto 12px;}
.empty-state h3{font-size:17px;font-weight:700;margin-bottom:6px;}
.empty-state p{font-size:14px;color:var(--ink-2);margin-bottom:16px;}
.pager{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:36px;flex-wrap:wrap;}
.pager a,.pager span{
  min-width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--radius-btn);border:1px solid var(--line);background:var(--white);
  font-size:14px;font-weight:600;color:var(--ink-2);padding:0 16px;
  transition:all var(--t) var(--ease);
}
.pager a:hover{border-color:var(--brand);color:var(--brand);}
.pager .current{background:var(--brand);border-color:var(--brand);color:#fff;}
.pager .disabled{opacity:.45;pointer-events:none;}

/* ============ CTA + 表单 ============ */
.cta-wrap{
  display:grid;grid-template-columns:1fr 1.1fr;gap:44px;align-items:start;
}
.cta-copy h2{font-size:clamp(22px,2.6vw,32px);color:#fff;line-height:1.35;font-weight:800;}
.cta-copy h2::before{content:"";display:block;width:40px;height:3px;border-radius:3px;background:var(--brand);margin-bottom:14px;}
.cta-copy p{font-size:15px;color:var(--dark-muted);margin-top:14px;line-height:1.85;}
.cta-list{display:flex;flex-direction:column;gap:12px;margin-top:24px;}
.cta-list li{display:flex;gap:10px;font-size:14px;color:#E7E3F2;align-items:flex-start;}
.cta-list svg{flex:0 0 18px;margin-top:5px;color:var(--brand-2);}
.form-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 26px;box-shadow:var(--shadow-2);
}
.form-card h3{font-size:19px;font-weight:700;margin-bottom:6px;}
.form-card .form-tip{font-size:13px;color:var(--ink-2);margin-bottom:20px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field-full{grid-column:1 / -1;}
.field label{font-size:13px;font-weight:600;color:var(--ink);}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:10px;background:#FCFBF9;
  padding:12px 14px;font-size:14px;color:var(--ink);transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.field textarea{resize:vertical;min-height:84px;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(255,90,43,.12);background:#fff;
}
.form-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:20px;flex-wrap:wrap;}
.check-row{display:flex;align-items:flex-start;gap:9px;font-size:14px;color:var(--ink-2);line-height:1.6;}
.check-row input{width:16px;height:16px;margin-top:5px;accent-color:var(--brand);}
.form-result{margin-top:18px;font-size:14px;border-radius:10px;padding:12px 16px;}
.form-result[hidden]{display:none;}
.form-result.ok{background:rgba(47,211,168,.1);border-left:4px solid var(--brand-2);color:#14604A;}
.form-result.err{background:rgba(224,72,60,.08);border-left:4px solid var(--danger);color:#8C2A21;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px;}
.faq-item{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-1);overflow:hidden;transition:border-color var(--t) var(--ease);
}
.faq-item.is-open{border-color:#D8D1C8;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;font-size:17px;font-weight:600;text-align:left;color:var(--ink);
  min-height:44px;
}
.faq-q:hover{color:var(--brand);}
.faq-plus{position:relative;flex:0 0 18px;width:18px;height:18px;transition:transform var(--t) var(--ease);}
.faq-plus::before,.faq-plus::after{
  content:"";position:absolute;background:var(--ink-2);border-radius:2px;transition:background var(--t) var(--ease);
}
.faq-plus::before{left:0;top:8px;width:18px;height:2px;}
.faq-plus::after{top:0;left:8px;width:2px;height:18px;}
.faq-item.is-open .faq-plus{transform:rotate(45deg);}
.faq-item.is-open .faq-plus::before,.faq-item.is-open .faq-plus::after{background:var(--brand);}
.faq-a{max-height:0;overflow:hidden;transition:max-height var(--t) var(--ease);}
.faq-item.is-open .faq-a{max-height:400px;}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--ink-2);}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-dark-2);color:var(--dark-muted);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.85;max-width:320px;}
.footer-col h3{
  font-size:13px;font-weight:700;color:#fff;letter-spacing:1.5px;margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{
  display:inline-block;font-size:14px;color:var(--dark-muted);position:relative;padding-left:0;
  transition:color var(--t) var(--ease),padding-left var(--t) var(--ease);
}
.footer-col a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:0;height:14px;background:var(--brand-2);border-radius:2px;
  transition:width var(--t) var(--ease);
}
.footer-col a:hover{color:#fff;padding-left:12px;}
.footer-col a:hover::before{width:2px;}
.footer-col li{font-size:14px;line-height:1.8;}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--dark-line);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;
}
.footer-bottom a{color:var(--dark-muted);}
.footer-bottom a:hover{color:#fff;}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .hot-links{display:none;}
  .nav-search{max-width:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-wrap{grid-template-columns:1fr;gap:32px;}
  .news-grid{grid-template-columns:repeat(2,1fr);gap:22px;}
  .hero-grid{gap:32px;}
  .hero-media{margin-top:8px;}
}
@media (max-width:767px){
  .wall-grid{grid-template-columns:repeat(2,1fr);gap:16px;}
  .feature-grid{grid-template-columns:1fr;gap:16px;}
  .feature-card:nth-child(2),.feature-card:nth-child(4){margin-top:0;}
  .feature-card{display:flex;gap:16px;align-items:flex-start;padding:20px;}
  .feature-num{margin-bottom:0;font-size:34px;flex:0 0 auto;}
  .feature-body{flex:1;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:24px 12px;}
  .stat-item:nth-child(3){border-left:0;}
  .stat-item:nth-child(3),.stat-item:nth-child(4){border-top:1px solid var(--dark-line);padding-top:20px;}
  .hero{padding-top:40px;padding-bottom:56px;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  body{font-size:15px;}
  .cd-text{display:none;}
  .btn-cd{display:none;}
  .logo-text{font-size:15px;}
  .brand-bar{height:56px;}
  .nav-search{display:none;}
  .search-icon-btn{display:flex;}
  .channel-list{overflow-x:auto;gap:20px;scrollbar-width:none;-ms-overflow-style:none;}
  .channel-list::-webkit-scrollbar{display:none;}
  .channel-list li{flex:0 0 auto;}
  .channel-cta{display:none;}
  .section{padding:48px 0;}
  .sec-dark{padding:48px 0;}
  .news-grid{grid-template-columns:1fr;gap:20px;}
  .wall-grid{grid-template-columns:1fr;gap:16px;}
  .wall-item:nth-child(1),.wall-item:nth-child(2),
  .wall-item:nth-child(7),.wall-item:nth-child(8){grid-column:span 1;}
  .wall-item img,.wall-item:nth-child(1) img,.wall-item:nth-child(2) img,
  .wall-item:nth-child(7) img,.wall-item:nth-child(8) img{aspect-ratio:16/10;}
  .form-grid{grid-template-columns:1fr;}
  .form-foot{flex-direction:column;align-items:stretch;}
  .form-foot .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .hero h1{font-size:clamp(26px,7vw,32px);}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .btn:hover,.feature-card:hover,.wall-item:hover,.news-card:hover{transform:none !important;}
  .news-card:hover .news-thumb img{transform:none !important;}
}

/* roulang page: article */
*,*::before,*::after{box-sizing:border-box}
:root{
  --brand:#FF5A2B;
  --brand-2:#2FD3A8;
  --warn:#FFC53D;
  --bg-dark:#171423;
  --bg-dark-2:#221B37;
  --bg:#F7F5F2;
  --card:#FFFFFF;
  --ink:#1D1A26;
  --ink-2:#6E6879;
  --line:#E6E2DC;
  --ink-dark:#FFFFFF;
  --ink-dark-2:#B6AFC7;
  --line-dark:rgba(255,255,255,.12);
  --radius:16px;
  --radius-lg:20px;
  --radius-sm:12px;
  --radius-chip:8px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(23,20,35,.06);
  --shadow-2:0 10px 28px rgba(23,20,35,.12);
  --shadow-3:0 12px 32px rgba(0,0,0,.35);
  --space-section:88px;
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0}
p{margin:0}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.site-header :focus-visible,.site-footer :focus-visible,.hero-dark :focus-visible{outline-color:var(--brand-2)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:var(--bg-dark)}
.brand-bar{background:var(--bg-dark);border-bottom:1px solid var(--line-dark)}
.brand-inner{display:flex;align-items:center;gap:20px;height:64px;transition:height .22s var(--ease)}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;white-space:nowrap}
.logo-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,#FF5A2B,#FF8A5C);display:flex;align-items:center;justify-content:center;font-size:16px;color:#fff;font-weight:800;flex:0 0 auto}
.logo-text em{font-style:normal;color:var(--brand)}
.nav-search{flex:1 1 auto;max-width:360px;display:flex;align-items:center;gap:6px;height:40px;padding:0 5px 0 16px;border:1px solid var(--line-dark);border-radius:999px;background:rgba(255,255,255,.06)}
.nav-search input{flex:1;min-width:0;height:100%;border:0;background:transparent;color:#fff;font-size:13px;outline:none}
.nav-search input::placeholder{color:var(--ink-dark-2)}
.nav-search button{width:32px;height:32px;border:0;border-radius:50%;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:filter .2s var(--ease)}
.nav-search button:hover{filter:brightness(1.08)}
.hot-links{margin:0;font-size:13px;color:var(--ink-dark-2)}
.hot-links a{margin-left:10px;color:#fff}
.hot-links a:hover{color:var(--brand-2)}
.search-icon-btn{display:none;width:44px;height:44px;border:1px solid var(--line-dark);border-radius:12px;background:transparent;color:#fff;align-items:center;justify-content:center;cursor:pointer}
.channel-bar{background:var(--bg-dark-2)}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:54px}
.channel-list{display:flex;align-items:center;gap:26px;margin:0;padding:0;list-style:none}
.channel-list a{display:block;padding:16px 2px;font-size:15px;font-weight:500;color:var(--ink-dark-2);border-bottom:2px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease)}
.channel-list a:hover{color:#fff}
.channel-list a.active{color:#fff;font-weight:600;border-bottom-color:var(--brand)}
.channel-cta{flex:0 0 auto;padding:9px 20px;border-radius:999px;background:var(--brand);color:#fff;font-size:14px;font-weight:600;transition:transform .2s var(--ease),filter .2s var(--ease)}
.channel-cta:hover{filter:brightness(1.06);transform:translateY(-2px)}
.site-header.is-scrolled{box-shadow:var(--shadow-3)}
.site-header.is-scrolled .brand-inner{height:52px}
.search-overlay{position:fixed;inset:0;z-index:200;display:none;padding:96px 20px 0;background:rgba(23,20,35,.97)}
.search-overlay.open{display:block}
.search-overlay form{max-width:640px;margin:0 auto;display:flex;gap:10px}
.search-overlay input{flex:1;height:52px;padding:0 18px;border:1px solid var(--line-dark);border-radius:var(--radius-input);background:rgba(255,255,255,.06);color:#fff;outline:none}
.search-overlay input::placeholder{color:var(--ink-dark-2)}
.search-overlay button{height:52px;padding:0 24px;border:0;border-radius:999px;background:var(--brand);color:#fff;font-weight:600;cursor:pointer}
.search-close{display:block;width:44px;height:44px;margin:20px auto 0;border:1px solid var(--line-dark);border-radius:50%;background:transparent;color:#fff;font-size:20px;cursor:pointer}

/* ---------- 通用 ---------- */
.breadcrumb{font-size:14px;color:var(--ink-2);padding:22px 0 0}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{margin:0 8px;color:#C4BFB8}
.breadcrumb .current{color:var(--ink);font-weight:600}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:14px 26px;border:1px solid transparent;border-radius:999px;font-size:15px;font-weight:600;cursor:pointer;transition:transform .2s var(--ease),filter .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 10px 24px rgba(255,90,43,.28)}
.btn-ghost{border-color:var(--line);background:transparent;color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand-2);color:var(--brand)}
.btn-sm{padding:10px 20px;font-size:14px;min-height:40px}

/* ---------- 文章 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:48px;align-items:start;padding:20px 0 8px}
.article-panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-1);padding:40px 44px 44px}
.article-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:14px;color:var(--ink-2)}
.chip{display:inline-flex;align-items:center;padding:5px 12px;border-radius:var(--radius-chip);background:rgba(255,90,43,.1);color:#B53710;font-size:13px;font-weight:600}
.chip-green{background:rgba(47,211,168,.14);color:#12715A}
.article-title{font-size:clamp(28px,4.2vw,42px);line-height:1.28;letter-spacing:-.5px;font-weight:800;margin:18px 0 26px;color:var(--ink)}
.article-body{max-width:780px;font-size:17px;line-height:1.95;color:#2A2633}
.article-body p{margin:0 0 22px}
.article-body h2{font-size:clamp(21px,2.4vw,28px);line-height:1.4;margin:44px 0 16px;color:var(--ink)}
.article-body h2::after{content:"";display:block;width:40px;height:4px;margin-top:12px;border-radius:2px;background:var(--brand)}
.article-body h3{font-size:19px;line-height:1.5;margin:32px 0 12px;color:var(--ink)}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:22px}
.article-body li{margin-bottom:10px;line-height:1.9}
.article-body li::marker{color:var(--brand);font-weight:700}
.article-body blockquote{margin:26px 0;padding:16px 22px;border-left:4px solid var(--brand);border-radius:0 var(--radius-sm) var(--radius-sm) 0;background:#FBF3EF;color:#3B3546;font-style:normal}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-body img{border-radius:var(--radius-sm);margin:28px auto;height:auto}
.article-body figure{margin:28px 0}
.article-body figcaption{margin-top:10px;font-size:13px;color:var(--ink-2);text-align:center}
.article-body table{width:100%;margin:24px 0;border:1px solid var(--line);border-radius:var(--radius-sm);border-collapse:separate;border-spacing:0;overflow:hidden;font-size:15px}
.article-body th{background:#F2EFEA;padding:12px 14px;text-align:left;font-weight:600}
.article-body td{padding:12px 14px;border-top:1px solid var(--line);vertical-align:top}
.tag-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:36px;padding-top:24px;border-top:1px solid var(--line);font-size:14px;color:var(--ink-2)}
.tag{padding:6px 12px;border:1px solid var(--line);border-radius:var(--radius-chip);background:#fff;font-size:13px;color:var(--ink-2)}
.tag:hover{border-color:var(--brand);color:var(--brand)}
.article-empty{text-align:center;padding:56px 20px}
.article-empty svg{margin:0 auto 18px;display:block}
.article-empty h2{font-size:22px;margin-bottom:10px}
.article-empty p{font-size:15px;color:var(--ink-2);margin-bottom:22px}

/* 侧栏 */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-1);padding:20px}
.side-card h3{font-size:14px;margin:0 0 14px;color:var(--ink);letter-spacing:.4px}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{display:block;padding:7px 10px;border-left:2px solid var(--line);font-size:13.5px;line-height:1.6;color:var(--ink-2)}
.toc-list a:hover{border-left-color:var(--brand);color:var(--brand);background:#FBF9F6}
.side-list{display:flex;flex-direction:column;gap:10px;font-size:14px}
.side-list a{color:var(--ink-2)}
.side-list a:hover{color:var(--brand)}
.side-tags{display:flex;flex-wrap:wrap;gap:8px}
.side-tags a{padding:5px 10px;border:1px solid var(--line);border-radius:var(--radius-chip);font-size:13px;color:var(--ink-2)}
.side-tags a:hover{border-color:var(--brand);color:var(--brand)}
.side-cta{background:var(--bg-dark-2);border-color:transparent;color:var(--ink-dark-2)}
.side-cta h3{color:#fff}
.side-cta p{font-size:13.5px;line-height:1.75;color:var(--ink-dark-2);margin-bottom:16px}
.side-cta .btn-primary{width:100%}
.inline-toc{display:none;margin-top:32px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#FBF9F6}
.inline-toc summary{padding:14px 18px;font-size:15px;font-weight:600;cursor:pointer;list-style:none}
.inline-toc summary::-webkit-details-marker{display:none}
.inline-toc summary::after{content:"+";float:right;color:var(--brand);font-weight:700}
.inline-toc[open] summary::after{content:"–"}
.inline-toc ol{margin:0;padding:4px 18px 18px 36px;font-size:14px;line-height:1.9}
.inline-toc a{color:var(--ink-2)}
.inline-toc a:hover{color:var(--brand)}

/* 提示条 */
.notice-bar{display:flex;gap:16px;align-items:flex-start;margin:0 0 64px;padding:20px 24px;background:#FFFFFF;border:1px solid var(--line);border-left:4px solid var(--brand-2);border-radius:var(--radius);box-shadow:var(--shadow-1)}
.notice-bar h3{font-size:16px;margin-bottom:6px}
.notice-bar p{font-size:14.5px;line-height:1.8;color:var(--ink-2)}

/* 相关推荐 */
.related-section{padding-bottom:56px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
.section-head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35}
.section-head h2::after{content:"";display:block;width:40px;height:4px;margin-top:12px;border-radius:2px;background:var(--brand)}
.section-head .more{font-size:14px;color:var(--brand);font-weight:600}
.section-head .more:hover{text-decoration:underline;text-underline-offset:4px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-1);overflow:hidden;transition:transform .22s var(--ease),box-shadow .22s var(--ease)}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.post-thumb{width:100%;aspect-ratio:16/10;object-fit:cover}
.post-body{padding:18px 20px 20px}
.post-body h3{font-size:17px;line-height:1.5;margin-bottom:10px;transition:color .2s var(--ease)}
.post-card:hover .post-body h3{color:var(--brand)}
.post-desc{font-size:14px;line-height:1.7;color:var(--ink-2);margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--ink-2)}
.post-meta .arrow{color:var(--brand);transition:transform .2s var(--ease)}
.post-card:hover .post-meta .arrow{transform:translateX(4px)}
.back-links{display:flex;gap:14px;flex-wrap:wrap;padding:8px 0 88px}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-dark);color:var(--ink-dark-2)}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:36px;padding:64px 0 40px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--ink-dark-2)}
.footer-col h3{font-size:13px;letter-spacing:1.4px;color:#fff;margin-bottom:16px;font-weight:700}
.footer-col ul{margin:0;padding:0;list-style:none}
.footer-col li{margin-bottom:10px;font-size:14px}
.footer-col a{position:relative;color:var(--ink-dark-2)}
.footer-col a:hover{color:#fff;padding-left:10px}
.footer-col a:hover::before{content:"";position:absolute;left:0;top:50%;width:2px;height:14px;background:var(--brand-2);transform:translateY(-50%)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:20px 0;border-top:1px solid var(--line-dark);font-size:13px}
.footer-bottom p{margin:0}

@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .post-card:hover,.btn-primary:hover,.channel-cta:hover{transform:none}
  .post-card:hover .post-meta .arrow{transform:none}
}

@media (max-width:1023px){
  .article-layout{grid-template-columns:1fr;gap:32px}
  .article-side{display:none}
  .inline-toc{display:block}
  .article-panel{padding:32px 28px 36px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .nav-search{display:none}
  .search-icon-btn{display:flex}
  .hot-links{display:none}
}
@media (max-width:639px){
  .container{padding:0 16px}
  .brand-inner{height:58px;gap:12px}
  .logo{font-size:16px}
  .channel-inner{min-height:auto;flex-wrap:wrap;padding-top:8px;padding-bottom:8px}
  .channel-list{width:100%;gap:18px;overflow-x:auto;scrollbar-width:none}
  .channel-list::-webkit-scrollbar{display:none}
  .channel-list a{padding:10px 2px;font-size:14px;white-space:nowrap}
  .channel-cta{display:none}
  .article-panel{padding:24px 18px 28px;border-radius:var(--radius-sm)}
  .article-body{font-size:15.5px}
  .article-body h2{margin-top:36px}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:48px 0 28px}
  .notice-bar{margin-bottom:44px;padding:18px}
  .back-links .btn{width:100%}
  .back-links{padding-bottom:64px}
}

/* roulang page: category1 */
:root{
  --brand:#FF5A2B;
  --brand-deep:#E8410F;
  --brand-2:#2FD3A8;
  --warn:#FFC53D;
  --ink:#1D1A26;
  --ink-2:#6E6879;
  --bg:#F7F5F2;
  --paper:#FFFFFF;
  --bg-dark:#171423;
  --bg-dark-2:#221B37;
  --line:#E6E2DC;
  --line-dark:rgba(255,255,255,.12);
  --dark-text:#B6AFC7;
  --radius:16px;
  --radius-lg:20px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(23,20,35,.06);
  --shadow-2:0 10px 28px rgba(23,20,35,.12);
  --shadow-3:0 12px 32px rgba(0,0,0,.35);
  --space-section:48px;
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:-.3px}
p{margin:0}
button{font:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px}
.section{padding:var(--space-section) 0}
.section-title{
  font-size:clamp(22px,2.6vw,32px);
  line-height:1.35;
  color:var(--ink);
  padding-top:14px;
  position:relative;
}
.section-title::before{
  content:"";
  position:absolute;top:0;left:0;
  width:40px;height:4px;border-radius:2px;background:var(--brand);
}
.section-lead{margin-top:12px;font-size:15px;color:var(--ink-2);max-width:720px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:10px 18px;border-radius:0 0 12px 0;z-index:999}
.skip-link:focus{left:0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;font-size:15px;font-weight:600;border-radius:999px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  min-height:44px;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(255,90,43,.28)}
.btn-primary:hover{background:#ff6f45;transform:translateY(-2px);box-shadow:0 10px 24px rgba(255,90,43,.34)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.btn-outline:hover{border-color:var(--brand-2);background:rgba(47,211,168,.12);color:#fff}
.btn-ghost{background:transparent;color:var(--ink);border:0;padding-left:6px;padding-right:6px}
.btn-ghost:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.btn-sm{padding:9px 18px;font-size:13px;min-height:36px}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--bg-dark);
  border-bottom:1px solid var(--line-dark);
  transition:box-shadow .22s var(--ease);
}
.site-header.is-compact{box-shadow:0 12px 32px rgba(0,0,0,.35)}
.brand-bar{background:var(--bg-dark)}
.brand-inner{display:flex;align-items:center;gap:20px;height:64px;transition:height .22s var(--ease)}
.site-header.is-compact .brand-inner{height:52px}
.logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;flex:0 0 auto}
.logo-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),#ff9166);color:#fff;font-size:17px;font-weight:800;
}
.logo-text{font-size:17px;letter-spacing:.2px;white-space:nowrap}
.logo-text em{font-style:normal;color:var(--brand-2)}
.nav-search{position:relative;flex:1 1 auto;max-width:340px;display:flex}
.nav-search input{
  width:100%;height:40px;border-radius:var(--radius-sm);
  border:1px solid var(--line-dark);background:rgba(255,255,255,.06);
  color:#fff;padding:0 44px 0 14px;font-size:13px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search input::placeholder{color:#8F89A3}
.nav-search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(255,90,43,.18)}
.nav-search button{
  position:absolute;right:4px;top:4px;width:32px;height:32px;border:0;border-radius:8px;
  background:transparent;color:var(--dark-text);display:grid;place-items:center;
}
.nav-search button:hover{color:#fff;background:rgba(255,255,255,.08)}
.hot-links{margin-left:auto;font-size:13px;color:#8F89A3;white-space:nowrap}
.hot-links a{color:var(--dark-text);margin-left:10px;transition:color .2s var(--ease)}
.hot-links a:hover{color:var(--brand-2)}
.search-icon-btn{
  display:none;width:44px;height:44px;border:1px solid var(--line-dark);border-radius:12px;
  background:rgba(255,255,255,.05);color:#fff;place-items:center;margin-left:auto;
}
.channel-bar{background:var(--bg-dark-2);border-top:1px solid var(--line-dark)}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.channel-list{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channel-list::-webkit-scrollbar{display:none}
.channel-list a{
  position:relative;display:inline-flex;align-items:center;height:52px;padding:0 16px;
  font-size:15px;color:#CFC9DD;white-space:nowrap;transition:color .2s var(--ease);
}
.channel-list a::after{
  content:"";position:absolute;left:16px;right:16px;bottom:0;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
}
.channel-list a:hover{color:#fff}
.channel-list a.active{color:#fff;font-weight:600}
.channel-list a.active::after{transform:scaleX(1)}
.channel-cta{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 20px;border-radius:999px;background:var(--brand);color:#fff;
  font-size:14px;font-weight:600;white-space:nowrap;
  transition:background-color .2s var(--ease),transform .2s var(--ease);
}
.channel-cta:hover{background:#ff6f45;transform:translateY(-1px)}

/* ============ 分类头图带 ============ */
.category-hero{
  position:relative;color:#fff;overflow:hidden;
  background:#171423 url('/assets/images/backpic/back-1.png') center/cover no-repeat;
}
.category-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(23,20,35,.95) 0%,rgba(34,27,55,.86) 55%,rgba(23,20,35,.9) 100%);
}
.category-hero::after{
  content:"";position:absolute;inset:0;opacity:.06;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:24px 24px;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.55fr .95fr;gap:44px;align-items:center;
  padding-top:52px;padding-bottom:64px;
}
.breadcrumb{margin-bottom:22px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--dark-text)}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:#7B748E}
.breadcrumb a{color:var(--dark-text);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:#fff}
.breadcrumb li[aria-current]{color:#fff;font-weight:600}
.hero-copy h1{
  font-size:clamp(28px,4.2vw,46px);
  line-height:1.25;letter-spacing:-.5px;font-weight:800;color:#fff;
}
.hero-copy h1 span{color:var(--brand-2)}
.hero-sub{margin-top:18px;font-size:16px;line-height:1.85;color:#D6D0E4;max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:24px}
.hero-points li{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:#CFC9DD}
.hero-points li::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--brand-2);flex:0 0 8px}
.hero-badge-card{
  background:rgba(34,27,55,.86);border:1px solid var(--line-dark);border-radius:var(--radius-lg);
  padding:28px;box-shadow:var(--shadow-3);
  clip-path:polygon(16px 0,100% 0,100% 100%,0 100%,0 16px);
}
.badge-live{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--warn);color:#241B00;font-size:12px;font-weight:700;
  padding:5px 12px;border-radius:8px;
}
.badge-num{font-size:44px;font-weight:800;color:#fff;line-height:1.1;margin-top:18px;font-variant-numeric:tabular-nums}
.badge-label{font-size:14px;color:var(--dark-text);margin-top:4px}
.badge-list{margin-top:20px;padding-top:18px;border-top:1px solid var(--line-dark);display:grid;gap:10px}
.badge-list li{font-size:14px;color:#CFC9DD;display:flex;gap:8px;align-items:flex-start}
.badge-list li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);margin-top:9px;flex:0 0 6px}

/* ============ 筛选条 ============ */
.filter-section{background:var(--bg)}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 30px}
.chip{
  display:inline-flex;align-items:center;height:40px;padding:0 18px;
  border-radius:8px;border:1px solid var(--line);background:var(--paper);
  color:var(--ink-2);font-size:14px;
  transition:border-color .2s var(--ease),color .2s var(--ease),background-color .2s var(--ease),transform .2s var(--ease);
}
.chip:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.chip.active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.chip.active:hover{color:#fff}

/* ============ 卡片栅格 ============ */
.card-grid{row-gap:24px}
.act-card{
  height:100%;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.act-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(255,90,43,.4)}
.act-card-link{display:flex;flex-direction:column;height:100%}
.act-card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:#EDE9E3}
.act-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.act-card:hover .act-card-media img{transform:scale(1.03)}
.act-card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(23,20,35,.55),transparent 58%);
  opacity:.85;transition:opacity .22s var(--ease);
}
.act-card:hover .act-card-media::after{opacity:1}
.card-tag{
  position:absolute;left:14px;top:14px;z-index:2;
  background:rgba(47,211,168,.95);color:#0E2C24;font-size:12px;font-weight:700;
  padding:5px 11px;border-radius:8px;
}
.card-state{
  position:absolute;right:14px;bottom:14px;z-index:2;
  font-size:12px;color:#fff;background:rgba(23,20,35,.6);
  border:1px solid var(--line-dark);padding:4px 10px;border-radius:8px;
}
.act-card-body{padding:22px;display:flex;flex-direction:column;flex:1}
.act-card-body h3{font-size:19px;line-height:1.5;color:var(--ink);transition:color .2s var(--ease)}
.act-card:hover .act-card-body h3{color:var(--brand)}
.act-card-body p{
  margin-top:10px;font-size:14.5px;line-height:1.7;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.act-card-meta{
  margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;
  border-top:1px dashed var(--line);font-size:13px;color:var(--ink-2);
}
.act-card-meta .arrow{font-size:16px;color:var(--brand);transition:transform .2s var(--ease)}
.act-card:hover .act-card-meta .arrow{transform:translateX(4px)}

/* ============ 参与流程 ============ */
.flow-section{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.flow-grid{row-gap:20px;margin-top:30px}
.flow-step{
  height:100%;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow-1);transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.flow-step:hover{border-color:var(--brand);transform:translateY(-4px)}
.step-num{
  display:block;font-size:30px;font-weight:800;color:var(--brand);
  font-variant-numeric:tabular-nums;letter-spacing:-1px;line-height:1;
}
.flow-step h3{margin-top:14px;font-size:18px;color:var(--ink)}
.flow-step p{margin-top:8px;font-size:14px;color:var(--ink-2);line-height:1.75}

/* ============ CTA 与表单 ============ */
.cta-section{background:var(--bg)}
.cta-panel{
  background:linear-gradient(135deg,#171423 0%,#2A2143 100%);
  border:1px solid var(--line-dark);border-radius:var(--radius-lg);
  padding:36px;color:#fff;box-shadow:var(--shadow-3);
}
.cta-copy h2{
  font-size:clamp(22px,2.6vw,30px);color:#fff;line-height:1.35;
  padding-top:14px;position:relative;
}
.cta-copy h2::before{content:"";position:absolute;top:0;left:0;width:40px;height:4px;border-radius:2px;background:var(--brand)}
.cta-copy p{margin-top:16px;font-size:15px;color:#CFC9DD;line-height:1.85}
.cta-list{margin-top:20px;display:grid;gap:12px}
.cta-list li{display:flex;gap:10px;font-size:14px;color:#D6D0E4}
.cta-list li::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--brand-2);margin-top:10px;flex:0 0 8px}
.signup-form{
  background:var(--paper);border-radius:var(--radius);padding:26px;
  display:grid;grid-template-columns:1fr 1fr;gap:16px;
  border:1px solid var(--line);box-shadow:var(--shadow-1);
}
.form-field{display:flex;flex-direction:column;gap:8px}
.form-field.full{grid-column:1/-1}
.form-field label{font-size:13px;font-weight:600;color:var(--ink-2)}
.form-field input,.form-field select,.form-field textarea{
  width:100%;height:46px;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:0 14px;font-size:15px;color:var(--ink);background:#fff;font-family:inherit;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.form-field textarea{height:92px;padding:12px 14px;resize:vertical;line-height:1.7}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(255,90,43,.14);
}
.form-actions{grid-column:1/-1;display:flex;justify-content:flex-end}
.form-actions .btn{width:auto}
.privacy-line{grid-column:1/-1;display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--ink-2)}
.privacy-line input{width:18px;height:18px;margin-top:5px;accent-color:var(--brand)}
.form-status{grid-column:1/-1;display:none;font-size:14px;line-height:1.7;padding:12px 16px;border-radius:12px}
.form-status.is-success{display:block;background:#EFFCF8;border-left:4px solid var(--brand-2);color:#14584A}
.form-status.is-error{display:block;background:#FFF5F2;border-left:4px solid #E0453A;color:#8F241C}

/* ============ FAQ ============ */
.faq-section{background:var(--paper);border-top:1px solid var(--line)}
.faq-list{margin-top:28px;max-width:900px}
.faq-item{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  margin-bottom:14px;box-shadow:var(--shadow-1);overflow:hidden;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item:hover{border-color:rgba(255,90,43,.35)}
.faq-item.is-open{border-color:rgba(255,90,43,.5);box-shadow:var(--shadow-2)}
.faq-q{margin:0;font-size:17px}
.faq-q button{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:transparent;border:0;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-icon{position:relative;width:20px;height:20px;flex:0 0 20px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink-2);border-radius:2px;
  transition:transform .22s var(--ease),background-color .22s var(--ease);
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-item.is-open .faq-icon::before{background:var(--brand)}
.faq-item.is-open .faq-icon::after{background:var(--brand);transform:rotate(90deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--ink-2)}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-dark);color:var(--dark-text);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:44px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--dark-text);max-width:340px}
.footer-col h3{font-size:13px;color:#fff;letter-spacing:.14em;margin-bottom:16px;font-weight:700}
.footer-col ul{display:grid;gap:10px}
.footer-col a,.footer-col li{font-size:14px;color:var(--dark-text);line-height:1.7}
.footer-col a{position:relative;display:inline-block;padding-left:0;transition:color .2s var(--ease),padding-left .2s var(--ease)}
.footer-col a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:0;height:2px;border-radius:2px;background:var(--brand-2);transition:width .2s var(--ease);
}
.footer-col a:hover{color:#fff;padding-left:14px}
.footer-col a:hover::before{width:8px}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  border-top:1px solid var(--line-dark);padding:20px 0 26px;font-size:13px;color:#8F89A3;
}

/* ============ 响应式 ============ */
@media (min-width:1024px){
  :root{--space-section:72px}
}
@media (max-width:1023px){
  .hero-inner{grid-template-columns:1fr;gap:32px;padding-top:40px;padding-bottom:48px}
  .hero-badge-card{clip-path:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .hot-links{display:none}
}
@media (max-width:767px){
  .brand-inner{height:58px;gap:14px}
  .site-header.is-compact .brand-inner{height:52px}
  .nav-search{display:none}
  .search-icon-btn{display:grid}
  .channel-list a{height:48px;padding:0 13px;font-size:14px}
  .channel-list a::after{left:13px;right:13px}
  .channel-cta{padding:8px 16px;font-size:13px}
  .cta-panel{padding:24px}
  .signup-form{grid-template-columns:1fr;padding:20px}
  .form-actions{justify-content:stretch}
  .form-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:519px){
  .container{padding-left:16px;padding-right:16px}
  .hero-copy h1{font-size:28px}
  .logo-text{font-size:15px}
  .logo-mark{width:30px;height:30px;font-size:15px}
  .badge-num{font-size:36px}
  .chip{height:38px;padding:0 14px;font-size:13px}
  .act-card-body{padding:18px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .act-card:hover,.flow-step:hover,.chip:hover,.btn-primary:hover,.channel-cta:hover{transform:none}
  .act-card:hover .act-card-media img{transform:none}
}

/* roulang page: category2 */
:root{
  --brand:#FF5A2B;
  --brand-2:#2FD3A8;
  --warn:#FFC53D;
  --ink:#1D1A26;
  --ink-2:#6E6879;
  --bg:#F7F5F2;
  --bg-dark:#171423;
  --bg-dark-2:#221B37;
  --line:#E6E2DC;
  --line-dark:rgba(255,255,255,.12);
  --dark-ink-2:#B6AFC7;
  --radius:16px;
  --radius-lg:20px;
  --radius-sm:12px;
  --radius-chip:8px;
  --shadow-1:0 1px 2px rgba(23,20,35,.06);
  --shadow-2:0 10px 28px rgba(23,20,35,.12);
  --shadow-3:0 12px 32px rgba(0,0,0,.35);
  --space-section:88px;
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;font-size:16px;line-height:1.8;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:#e04a1e}
button,input,select,textarea{font-family:inherit;font-size:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
[hidden]{display:none!important}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.site-header :focus-visible,.cta-band :focus-visible,.side-cta :focus-visible,.site-footer :focus-visible{outline-color:var(--brand-2)}
.skip-link{position:absolute;left:-9999px;top:0;z-index:300;background:var(--brand);color:#fff;padding:12px 20px;border-radius:0 0 var(--radius-sm) 0;font-size:14px;font-weight:600}
.skip-link:focus{left:0;color:#fff}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:100;background:var(--bg-dark);transition:box-shadow .24s var(--ease)}
.site-header.is-stuck{box-shadow:var(--shadow-3)}
.brand-bar{background:var(--bg-dark);border-bottom:1px solid var(--line-dark)}
.brand-inner{display:flex;align-items:center;gap:22px;height:64px;transition:height .24s var(--ease)}
.site-header.is-stuck .brand-inner{height:52px}
.logo{display:inline-flex;align-items:center;gap:10px;color:#fff;flex:0 0 auto}
.logo:hover{color:#fff}
.logo-mark{width:34px;height:34px;border-radius:10px;background:var(--brand);color:#fff;display:grid;place-items:center;font-weight:800;font-size:17px;box-shadow:0 6px 16px rgba(255,90,43,.35)}
.logo-text{font-size:17px;font-weight:700;white-space:nowrap;letter-spacing:-.2px}
.logo-text em{font-style:normal;color:var(--brand-2)}
.nav-search{display:flex;align-items:center;flex:1 1 auto;max-width:340px;background:rgba(255,255,255,.06);border:1px solid var(--line-dark);border-radius:999px;padding:3px 3px 3px 16px;transition:border-color .2s var(--ease),background .2s var(--ease)}
.nav-search:focus-within{border-color:var(--brand-2);background:rgba(255,255,255,.1)}
.nav-search input{flex:1;min-width:0;background:transparent;border:0;color:#fff;font-size:13px;height:34px;outline:none}
.nav-search input::placeholder{color:var(--dark-ink-2)}
.nav-search button{width:34px;height:34px;flex:0 0 34px;border:0;border-radius:999px;background:var(--brand);color:#fff;display:grid;place-items:center;cursor:pointer;transition:filter .2s var(--ease)}
.nav-search button:hover{filter:brightness(1.06)}
.hot-links{font-size:13px;color:var(--dark-ink-2);white-space:nowrap}
.hot-links a{color:var(--dark-ink-2);margin-left:8px}
.hot-links a:hover{color:var(--brand-2)}
.search-icon-btn{display:none;width:44px;height:44px;border:1px solid var(--line-dark);border-radius:12px;background:rgba(255,255,255,.06);color:#fff;place-items:center;cursor:pointer}
.search-icon-btn:hover{border-color:var(--brand-2);color:var(--brand-2)}
.channel-bar{background:var(--bg-dark-2);border-bottom:1px solid var(--line-dark)}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:52px}
.channel-list{display:flex;align-items:center;gap:2px;min-width:0}
.channel-list a{display:inline-flex;align-items:center;height:52px;padding:0 16px;font-size:15px;color:var(--dark-ink-2);border-bottom:2px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease)}
.channel-list a:hover{color:#fff}
.channel-list a.active{color:#fff;font-weight:600;border-bottom-color:var(--brand)}
.channel-cta{background:var(--brand);color:#fff;padding:10px 20px;border-radius:999px;font-size:14px;font-weight:600;white-space:nowrap;min-height:40px;display:inline-flex;align-items:center;transition:transform .2s var(--ease),filter .2s var(--ease),box-shadow .2s var(--ease)}
.channel-cta:hover{color:#fff;filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 8px 20px rgba(255,90,43,.3)}
.mobile-search{position:fixed;inset:0;z-index:250;background:var(--bg-dark);padding:24px 20px}
.mobile-search form{display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.06);border:1px solid var(--line-dark);border-radius:999px;padding:6px 6px 6px 18px}
.mobile-search input{flex:1;min-width:0;background:transparent;border:0;color:#fff;height:40px;outline:none;font-size:15px}
.mobile-search button[type="submit"]{border:0;background:var(--brand);color:#fff;border-radius:999px;padding:10px 18px;font-weight:600;cursor:pointer}
.mobile-search-close{margin-top:18px;background:transparent;border:1px solid var(--line-dark);color:var(--dark-ink-2);border-radius:12px;padding:10px 18px;cursor:pointer}

/* ============ 页头 ============ */
.page-head{background:var(--bg);padding:34px 0 12px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:14px;color:var(--ink-2);margin-bottom:18px}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#c9c4bd}
.breadcrumb .current{color:var(--ink);font-weight:600}
.page-head h1{font-size:clamp(28px,4.2vw,46px);line-height:1.25;letter-spacing:-.5px;font-weight:800;margin-bottom:16px}
.page-head h1 .mark{color:var(--brand)}
.page-sub{font-size:16px;line-height:1.8;color:var(--ink-2);max-width:780px}
.page-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{display:inline-flex;align-items:center;height:32px;padding:0 12px;border-radius:var(--radius-chip);background:#fff;border:1px solid var(--line);color:var(--ink-2);font-size:13px}
.chip-accent{background:rgba(47,211,168,.12);border-color:rgba(47,211,168,.4);color:#1c7f67}

/* ============ 两栏主体 ============ */
.guide-body{background:var(--bg);padding:34px 0 72px}
.guide-layout{display:flex;flex-wrap:wrap}
.guide-main{min-width:0}
.guide-side{min-width:0}
@media (min-width:1024px){
  .guide-main{padding-right:32px}
}
.lead-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-1);margin-bottom:28px;transition:box-shadow .2s var(--ease),transform .2s var(--ease)}
.lead-card:hover{box-shadow:var(--shadow-2);transform:translateY(-4px)}
.lead-figure{position:relative;margin:0;aspect-ratio:16/9;overflow:hidden;background:var(--bg-dark-2)}
.lead-figure img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease)}
.lead-card:hover .lead-figure img{transform:scale(1.02)}
.lead-badge{position:absolute;top:14px;right:14px;background:var(--brand-2);color:#0f2b23;font-size:12px;font-weight:700;padding:6px 12px;border-radius:var(--radius-chip)}
.lead-body{padding:24px}
.lead-body h2{position:relative;padding-top:16px;margin-bottom:12px;font-size:clamp(20px,2.4vw,26px);line-height:1.4}
.lead-body h2::before{content:"";position:absolute;top:0;left:0;width:40px;height:4px;border-radius:2px;background:var(--brand)}
.lead-body p{font-size:15px;line-height:1.85;color:var(--ink-2);margin-bottom:18px}
.lead-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}

.guide-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-1);overflow:hidden}
.panel-head{padding:24px 24px 8px}
.panel-head h2{position:relative;padding-top:16px;margin-bottom:10px;font-size:clamp(20px,2.4vw,28px);line-height:1.4}
.panel-head h2::before{content:"";position:absolute;top:0;left:0;width:40px;height:4px;border-radius:2px;background:var(--brand)}
.panel-head p{font-size:14px;color:var(--ink-2)}
.step-row{display:grid;grid-template-columns:64px minmax(0,1fr) auto;gap:18px;align-items:center;padding:20px 24px;border-top:1px solid var(--line);transition:background .2s var(--ease)}
.step-row:hover{background:var(--bg)}
.step-num{font-size:24px;font-weight:800;color:#c9c4bd;letter-spacing:-.5px;font-variant-numeric:tabular-nums;transition:color .2s var(--ease)}
.step-row:hover .step-num{color:var(--brand)}
.step-title{font-size:18px;font-weight:700;line-height:1.5;margin-bottom:4px}
.step-desc{font-size:14px;line-height:1.7;color:var(--ink-2)}
.step-link{display:inline-flex;align-items:center;gap:6px;min-height:44px;padding:8px 4px;font-size:14px;font-weight:600;color:var(--brand);white-space:nowrap}
.step-link svg{transition:transform .2s var(--ease)}
.step-link:hover svg{transform:translateX(4px)}

/* ============ 侧栏 ============ */
.side-inner{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-1)}
.side-card h3{font-size:15px;font-weight:700;margin-bottom:12px}
.side-card h4{font-size:13px;font-weight:700;color:var(--ink-2);letter-spacing:1px;margin-bottom:12px}
.anchor-list a,.link-list a{display:block;padding:9px 12px;font-size:14px;color:var(--ink-2);border-left:2px solid transparent;border-radius:var(--radius-chip);transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease)}
.anchor-list a:hover,.link-list a:hover{background:var(--bg);color:var(--ink);border-left-color:var(--brand-2)}
.side-cta{position:relative;border-radius:var(--radius);overflow:hidden;background:var(--bg-dark);box-shadow:var(--shadow-3);padding:22px}
.side-cta img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.3}
.side-cta .side-cta-inner{position:relative;color:#fff}
.side-cta h3{font-size:17px;font-weight:700;margin-bottom:10px}
.side-cta p{font-size:13px;line-height:1.8;color:var(--dark-ink-2);margin-bottom:16px}
.side-cta .btn{width:100%}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:14px 26px;font-size:15px;font-weight:600;border-radius:999px;border:1px solid transparent;cursor:pointer;text-align:center;transition:transform .2s var(--ease),filter .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{color:#fff;filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 10px 24px rgba(255,90,43,.32)}
.btn-outline{background:transparent;border-color:rgba(255,255,255,.34);color:#fff}
.btn-outline:hover{border-color:var(--brand-2);color:var(--brand-2);background:rgba(47,211,168,.08)}
.btn-outline-ink{background:transparent;border-color:var(--line);color:var(--ink);border-radius:var(--radius-sm)}
.btn-outline-ink:hover{border-color:var(--brand);color:var(--brand);background:#fff}
.btn-ghost{background:transparent;color:var(--brand);padding:8px 4px;min-height:44px;border-radius:var(--radius-chip)}
.btn-ghost:hover{color:#e04a1e;text-decoration:underline}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;filter:none}

/* ============ 底部通栏 CTA ============ */
.cta-band{position:relative;background:var(--bg-dark);color:#fff;padding:56px 0;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:24px 24px;pointer-events:none;opacity:.9}
.cta-band .container{position:relative;z-index:1}
.cta-grid{display:flex;flex-wrap:wrap;gap:36px;align-items:flex-start}
.cta-copy{flex:1 1 340px;min-width:0}
.cta-copy h2{position:relative;padding-top:16px;margin-bottom:14px;font-size:clamp(22px,2.6vw,32px);line-height:1.35}
.cta-copy h2::before{content:"";position:absolute;top:0;left:0;width:40px;height:4px;border-radius:2px;background:var(--brand)}
.cta-copy p{font-size:15px;line-height:1.85;color:var(--dark-ink-2);margin-bottom:20px}
.cta-points li{position:relative;padding-left:22px;font-size:14px;line-height:1.9;color:var(--dark-ink-2)}
.cta-points li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--brand-2)}
.signup-form{flex:1 1 420px;min-width:0;background:rgba(255,255,255,.04);border:1px solid var(--line-dark);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-3)}
.form-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:640px){
  .form-grid{grid-template-columns:1fr 1fr}
  .field.full{grid-column:1/-1}
}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:13px;color:var(--dark-ink-2)}
.field input,.field select,.field textarea{width:100%;background:rgba(255,255,255,.06);border:1px solid var(--line-dark);border-radius:10px;color:#fff;padding:12px 14px;font-size:15px;min-height:48px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease)}
.field textarea{min-height:96px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#8b84a0}
.field select option{background:var(--bg-dark-2);color:#fff}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(255,90,43,.18);background:rgba(255,255,255,.09)}
.checkline{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--dark-ink-2);line-height:1.7}
.checkline input{width:18px;height:18px;margin-top:4px;flex:0 0 18px;accent-color:var(--brand)}
.form-actions{display:flex;justify-content:flex-start;margin-top:6px}
@media (min-width:640px){
  .form-actions{justify-content:flex-end}
}
.form-result{margin-top:14px;padding:14px 16px;border-radius:var(--radius-sm);border-left:4px solid transparent;font-size:14px;line-height:1.8}
.form-result.is-ok{border-left-color:var(--brand-2);background:rgba(47,211,168,.1);color:#c8f3e4}
.form-result.is-error{border-left-color:#ff5f56;background:rgba(255,95,86,.1);color:#ffd5d2}

/* ============ FAQ ============ */
.faq-section{background:#fff;border-top:1px solid var(--line);padding:56px 0 72px}
.section-head{margin-bottom:28px}
.section-head h2{position:relative;padding-top:16px;font-size:clamp(22px,2.6vw,32px);line-height:1.35;margin-bottom:10px}
.section-head h2::before{content:"";position:absolute;top:0;left:0;width:40px;height:4px;border-radius:2px;background:var(--brand)}
.section-head p{font-size:15px;color:var(--ink-2);max-width:720px}
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-1);transition:box-shadow .2s var(--ease),border-color .2s var(--ease)}
.faq-item:hover{box-shadow:var(--shadow-2)}
.faq-item.is-open{border-color:rgba(255,90,43,.45)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;background:transparent;border:0;text-align:left;font-size:17px;font-weight:600;color:var(--ink);cursor:pointer;min-height:56px}
.faq-q:hover{color:var(--brand)}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 16px;transition:transform .24s var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--ink-2);border-radius:2px;transition:background .24s var(--ease)}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-q[aria-expanded="true"] .faq-icon{transform:rotate(45deg)}
.faq-q[aria-expanded="true"] .faq-icon::before,.faq-q[aria-expanded="true"] .faq-icon::after{background:var(--brand)}
.faq-a{padding:0 22px 20px}
.faq-a p{font-size:15px;line-height:1.85;color:var(--ink-2);padding-top:12px;border-top:1px solid var(--line)}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-dark);color:var(--dark-ink-2);padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--dark-ink-2);max-width:360px}
.footer-col h3{font-size:13px;letter-spacing:2px;color:#fff;font-weight:700;margin-bottom:16px}
.footer-col li{font-size:14px;color:var(--dark-ink-2);padding:6px 0}
.footer-col a{position:relative;display:inline-block;color:var(--dark-ink-2);padding-left:0;transition:color .2s var(--ease),padding-left .2s var(--ease)}
.footer-col a::before{content:"";position:absolute;left:0;top:50%;width:2px;height:0;background:var(--brand-2);transform:translateY(-50%);transition:height .2s var(--ease)}
.footer-col a:hover{color:#fff;padding-left:12px}
.footer-col a:hover::before{height:14px}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid var(--line-dark);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px}
.footer-bottom p{color:#8b84a0}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-search{display:none}
  .hot-links{display:none}
  .search-icon-btn{display:grid}
  .brand-inner{justify-content:space-between;gap:12px}
  .side-inner{position:static;display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px}
  .guide-main{padding-right:0;margin-bottom:28px}
}
@media (max-width:767px){
  .step-row{grid-template-columns:48px minmax(0,1fr);gap:14px;padding:18px 18px}
  .step-link{grid-column:2;justify-self:start}
  .step-num{font-size:20px}
  .lead-body{padding:20px}
  .panel-head{padding:20px 18px 6px}
  .cta-band{padding:56px 0}
  .signup-form{padding:20px}
  .faq-q{font-size:16px;padding:16px 18px}
  .faq-a{padding:0 18px 18px}
}
@media (max-width:639px){
  .container{padding:0 16px}
  .channel-inner{display:block;height:auto;padding-bottom:0}
  .channel-list{overflow-x:auto;white-space:nowrap;padding-bottom:0;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  .channel-list::-webkit-scrollbar{display:none}
  .channel-list li{display:inline-block}
  .channel-list a{height:46px;padding:0 12px;font-size:14px}
  .channel-cta{display:none}
  .page-head{padding:24px 0 8px}
  .page-head h1{letter-spacing:-.2px}
  .lead-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-grid{gap:24px}
  .btn{padding:13px 22px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
  .lead-card:hover,.btn:hover,.channel-cta:hover,.step-link:hover svg{transform:none!important}
  .lead-card:hover .lead-figure img{transform:none!important}
}