/* roulang page: index */
/* ============ 设计令牌 ============ */
:root{
  --brand-700:#123C36;
  --brand-600:#1C564D;
  --brand-100:#DCE8E4;
  --accent-500:#C2683A;
  --accent-600:#A9552C;
  --accent-100:#F5E3D8;
  --gold-400:#D9A94E;
  --bg:#F6F4EF;
  --bg-elevated:#FFFFFF;
  --bg-dark:#0B2B27;
  --ink-900:#141A19;
  --ink-600:#4E5A58;
  --ink-400:#8A9492;
  --ink-invert:#F2F6F4;
  --line:#E4E1D8;
  --line-strong:#CFCABC;
  --shadow-1:0 1px 2px rgba(11,43,39,.05), 0 10px 28px -18px rgba(11,43,39,.18);
  --shadow-2:0 2px 4px rgba(11,43,39,.06), 0 24px 48px -28px rgba(11,43,39,.28);
  --radius-card:16px;
  --radius-btn:10px;
  --radius-input:12px;
  --radius-pill:999px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:.24s;
  --dur-slow:.48s;
  --font-serif:"Noto Serif SC","Songti SC","STSong","SimSun",serif;
  --font-sans:system-ui,-apple-system,"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
/* ============ 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(--ink-900);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2{font-family:var(--font-serif);font-weight:600;line-height:1.24;color:var(--brand-700);}
h3{font-weight:600;line-height:1.4;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:4px;}
/* ============ 布局容器 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--alt{background:var(--bg-elevated);}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px;}
.section__head h2{font-size:38px;}
.section__head p{margin-top:14px;color:var(--ink-600);font-size:16px;max-width:640px;}
.section__more{color:var(--brand-600);font-size:15px;white-space:nowrap;display:inline-flex;align-items:center;gap:6px;border-bottom:1px solid transparent;transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);}
.section__more:hover{color:var(--accent-500);border-color:var(--accent-500);}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:.08em;color:var(--brand-600);background:var(--brand-100);padding:6px 14px;border-radius:var(--radius-pill);}
/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 24px;border-radius:var(--radius-btn);
  font-size:16px;font-weight:600;line-height:1.2;
  transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.btn svg{width:16px;height:16px;transition:transform var(--dur) var(--ease);}
.btn--primary{background:var(--accent-500);color:#fff;box-shadow:var(--shadow-1);}
.btn--primary:hover{background:var(--accent-600);transform:translateY(-1px);}
.btn--primary:hover svg{transform:translateX(4px);}
.btn--primary:active{transform:translateY(0);}
.btn--secondary{background:var(--bg-elevated);border:1px solid var(--line-strong);color:var(--ink-900);}
.btn--secondary:hover{border-color:var(--brand-600);color:var(--brand-700);background:rgba(220,232,228,.35);}
.btn--ghost{border:1px solid rgba(255,255,255,.4);color:#fff;}
.btn--ghost:hover{background:#fff;color:var(--brand-700);}
.btn--sm{padding:9px 18px;font-size:15px;}
.btn--block{width:100%;justify-content:center;}
.btn[disabled]{opacity:.5;cursor:not-allowed;}
/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--bg);
  border-bottom:1px solid transparent;
  transition:background-color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.site-header.is-stuck{background:rgba(246,244,239,.92);border-bottom-color:var(--line);}
.topbar{display:flex;align-items:center;gap:28px;height:84px;transition:height var(--dur) var(--ease);}
.site-header.is-stuck .topbar{height:60px;}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--font-serif);font-weight:700;font-size:23px;color:var(--brand-700);white-space:nowrap;}
.logo__mark{width:34px;height:34px;border-radius:9px;background:var(--brand-700);color:#fff;display:grid;place-items:center;font-size:15px;font-family:var(--font-sans);font-weight:700;flex:0 0 auto;}
.searchbar{flex:1;max-width:520px;position:relative;display:flex;align-items:center;}
.searchbar svg{position:absolute;left:15px;width:19px;height:19px;stroke:var(--ink-400);fill:none;stroke-width:1.5;pointer-events:none;}
.searchbar input{
  width:100%;height:48px;padding:0 96px 0 44px;
  background:var(--bg-elevated);border:1px solid var(--line);
  border-radius:var(--radius-input);font-size:15px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.searchbar input::placeholder{color:var(--ink-400);}
.searchbar input:focus{outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(220,232,228,.7);}
.searchbar button{
  position:absolute;right:6px;height:36px;padding:0 16px;
  background:var(--brand-700);color:#fff;border-radius:8px;font-size:14px;font-weight:600;
  transition:background-color var(--dur) var(--ease);
}
.searchbar button:hover{background:var(--brand-600);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.link-login{font-size:15px;font-weight:600;color:var(--brand-700);padding:9px 6px;border-bottom:2px solid transparent;transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);}
.link-login:hover{color:var(--accent-500);border-color:var(--accent-500);}
.subnav{border-top:1px solid var(--line);}
.subnav__inner{display:flex;align-items:center;gap:28px;height:52px;overflow-x:auto;scrollbar-width:none;}
.subnav__inner::-webkit-scrollbar{display:none;}
.subnav__inner a{
  position:relative;font-size:15px;color:var(--ink-600);white-space:nowrap;padding:14px 0;
  transition:color var(--dur) var(--ease);
}
.subnav__inner a::after{content:"";position:absolute;left:0;bottom:8px;height:2px;width:0;background:var(--accent-500);transition:width var(--dur) var(--ease);}
.subnav__inner a:hover{color:var(--brand-700);}
.subnav__inner a:hover::after,.subnav__inner a.is-active::after{width:100%;}
.subnav__inner a.is-active{color:var(--brand-700);font-weight:600;}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line-strong);border-radius:10px;align-items:center;justify-content:center;flex:0 0 auto;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-700);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-700);}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-search{display:none;padding:0 18px 12px;}
.mobile-search .searchbar{max-width:none;}
.drawer-mask{position:fixed;inset:0;background:rgba(11,43,39,.42);opacity:0;visibility:hidden;transition:opacity var(--dur) var(--ease),visibility var(--dur) var(--ease);z-index:70;}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:320px;max-width:86vw;background:var(--bg-elevated);
  z-index:80;padding:24px 22px;transform:translateX(100%);
  transition:transform var(--dur-slow) var(--ease);overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer__close{width:38px;height:38px;border:1px solid var(--line);border-radius:10px;font-size:20px;color:var(--ink-600);}
.drawer nav a{display:block;padding:14px 2px;border-bottom:1px solid var(--line);font-size:16px;color:var(--ink-600);}
.drawer nav a.is-active{color:var(--brand-700);font-weight:600;}
.drawer .btn{margin-top:20px;}
/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:80px 0 88px;}
.hero__deco{position:absolute;top:-120px;left:-140px;width:520px;height:520px;border-radius:50%;border:1px solid rgba(18,60,54,.06);box-shadow:0 0 0 60px rgba(18,60,54,.035),0 0 0 130px rgba(18,60,54,.022);pointer-events:none;}
.hero__grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.hero h1{font-size:50px;margin:22px 0 20px;}
.hero__sub{font-size:19px;color:var(--ink-600);max-width:560px;line-height:1.75;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero__stats{display:flex;gap:48px;margin-top:44px;border-top:1px solid var(--line);padding-top:26px;}
.stat__num{display:block;font-family:var(--font-serif);font-size:44px;line-height:1;color:var(--brand-700);}
.stat__label{display:block;margin-top:8px;font-size:14px;color:var(--ink-600);}
.hero__media{position:relative;border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-2);}
.hero__media img{width:100%;height:440px;object-fit:cover;}
.hero__tag{
  position:absolute;left:20px;bottom:20px;background:rgba(11,43,39,.78);color:var(--ink-invert);
  padding:12px 18px;border-radius:12px;font-size:14px;line-height:1.6;backdrop-filter:none;
}
.hero__tag strong{display:block;font-size:15px;color:#fff;}
/* ============ 信任条 ============ */
.trust{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-elevated);}
.trust__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:30px 0;}
.trust__item{display:flex;align-items:center;gap:12px;font-size:15px;color:var(--ink-600);}
.trust__item svg{width:22px;height:22px;stroke:var(--brand-600);fill:none;stroke-width:1.6;flex:0 0 auto;}
/* ============ 权益对比表 ============ */
.table-wrap{position:relative;overflow-x:auto;padding-bottom:4px;}
.plan-table{width:100%;min-width:760px;border-collapse:separate;border-spacing:0;background:var(--bg-elevated);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;}
.plan-table th,.plan-table td{padding:18px 20px;text-align:left;font-size:15px;border-bottom:1px solid var(--line);}
.plan-table thead th{background:var(--bg-dark);color:var(--ink-invert);font-size:16px;font-weight:600;}
.plan-table tbody tr:last-child td{border-bottom:0;}
.plan-table tbody tr:hover td{background:var(--bg);}
.plan-table .col-rec{background:rgba(220,232,228,.5);border-top:3px solid var(--accent-500);}
.plan-table thead .col-rec{background:var(--brand-600);border-top:3px solid var(--accent-500);}
.plan-table .cell-key{color:var(--ink-600);font-weight:600;}
.tick{display:inline-flex;align-items:center;gap:8px;color:var(--brand-700);}
.tick svg{width:17px;height:17px;stroke:var(--brand-700);fill:none;stroke-width:2;}
.dash{color:var(--ink-400);}
.table-note{margin-top:18px;font-size:15px;}
.table-note a{color:var(--brand-600);border-bottom:1px solid var(--line-strong);transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);}
.table-note a:hover{color:var(--accent-500);border-color:var(--accent-500);}
/* ============ 等级亮点 ============ */
.levels{display:grid;grid-template-columns:1fr 1.14fr 1fr;gap:24px;align-items:start;}
.level-card{background:var(--bg-elevated);border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-1);transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);}
.level-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--brand-600);}
.level-card--feature{padding:38px 32px;border-color:var(--brand-600);}
.level-card--top{border:1px solid var(--gold-400);}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;padding:5px 13px;border-radius:var(--radius-pill);background:var(--brand-100);color:var(--brand-700);}
.badge--hot{background:var(--accent-100);color:var(--accent-500);}
.badge--gold{background:#FBF3E1;color:#8A6516;border:1px solid var(--gold-400);}
.level-card h3{font-size:22px;margin:18px 0 10px;font-family:var(--font-serif);color:var(--brand-700);}
.level-card p{color:var(--ink-600);font-size:15px;}
.level-card ul{margin:20px 0 26px;display:grid;gap:11px;}
.level-card li{display:flex;gap:10px;font-size:15px;color:var(--ink-600);}
.level-card li svg{width:17px;height:17px;flex:0 0 auto;margin-top:5px;stroke:var(--brand-600);fill:none;stroke-width:2;}
/* ============ 内容预览卡 ============ */
.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.card-grid--3{grid-template-columns:repeat(3,1fr);}
.entry-card{background:var(--bg-elevated);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--brand-600);}
.entry-card__media{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--brand-100);}
.entry-card__media img{width:100%;height:100%;object-fit:cover;transition:transform var(--dur-slow) var(--ease);}
.entry-card__media::after{content:"";position:absolute;inset:0;background:rgba(11,43,39,.35);transition:background-color var(--dur) var(--ease);}
.entry-card:hover .entry-card__media img{transform:scale(1.03);}
.entry-card:hover .entry-card__media::after{background:rgba(11,43,39,.16);}
.entry-card__media .badge{position:absolute;top:12px;right:12px;z-index:2;background:rgba(255,255,255,.94);}
.entry-card__preview{position:absolute;left:16px;bottom:14px;z-index:2;color:#fff;font-size:14px;font-weight:600;opacity:0;transform:translateY(6px);transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease);}
.entry-card:hover .entry-card__preview{opacity:1;transform:translateY(0);}
.entry-card__body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.entry-card__body h3{font-size:18px;}
.entry-card__body h3 a{transition:color var(--dur) var(--ease);}
.entry-card__body h3 a:hover{color:var(--brand-600);}
.entry-card__body p{font-size:15px;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.entry-card__meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-400);flex-wrap:wrap;}
.chip{background:var(--brand-100);color:var(--brand-700);border-radius:var(--radius-pill);padding:3px 11px;font-size:12px;font-weight:600;}
.entry-card__more{color:var(--brand-600);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:5px;}
.entry-card__more:hover{color:var(--accent-500);}
/* ============ 最新信息 ============ */
.news-card{background:var(--bg-elevated);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--brand-600);}
.news-card__media{aspect-ratio:16/9;overflow:hidden;background:var(--brand-100);}
.news-card__media img{width:100%;height:100%;object-fit:cover;transition:transform var(--dur-slow) var(--ease);}
.news-card:hover .news-card__media img{transform:scale(1.03);}
.news-card__body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-card__body h3{font-size:18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card__body h3 a{transition:color var(--dur) var(--ease);}
.news-card__body h3 a:hover{color:var(--brand-600);}
.news-card__body p{font-size:15px;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card__meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-400);flex-wrap:wrap;}
.empty-state{text-align:center;padding:64px 24px;background:var(--bg-elevated);border:1px dashed var(--line-strong);border-radius:var(--radius-card);}
.empty-state svg{width:44px;height:44px;stroke:var(--ink-400);fill:none;stroke-width:1.4;margin:0 auto 18px;}
.empty-state p{color:var(--ink-600);font-size:15px;margin-bottom:22px;}
/* ============ FAQ ============ */
.faq{max-width:860px;}
.faq__item{background:var(--bg-elevated);border-radius:12px;border-bottom:1px solid var(--line);overflow:hidden;}
.faq__item+.faq__item{margin-top:10px;}
.faq__q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;text-align:left;padding:22px 24px;font-size:18px;font-weight:600;color:var(--ink-900);transition:color var(--dur) var(--ease);}
.faq__q:hover{color:var(--brand-600);}
.faq__q i{position:relative;width:18px;height:18px;flex:0 0 auto;transition:transform var(--dur) var(--ease);}
.faq__q i::before,.faq__q i::after{content:"";position:absolute;background:var(--accent-500);border-radius:2px;}
.faq__q i::before{left:0;top:8px;width:18px;height:2px;}
.faq__q i::after{top:0;left:8px;width:2px;height:18px;}
.faq__item.is-open .faq__q i{transform:rotate(45deg);}
.faq__a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease);}
.faq__a p{padding:0 24px 24px 27px;border-left:2px solid var(--accent-500);margin-left:24px;color:var(--ink-600);font-size:16px;}
/* ============ CTA ============ */
.cta{background:var(--bg-dark);color:var(--ink-invert);position:relative;overflow:hidden;}
.cta::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:56px 56px;pointer-events:none;}
.cta__inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:40px;padding:78px 0;}
.cta h2{color:#fff;font-size:34px;max-width:640px;}
.cta p{margin-top:14px;color:rgba(242,246,244,.78);font-size:16px;max-width:560px;}
.cta__actions{display:flex;gap:14px;flex-wrap:wrap;}
/* ============ 页脚 ============ */
.site-footer{background:var(--bg-dark);color:rgba(242,246,244,.82);padding:72px 0 0;}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer__brand .logo{color:#fff;}
.footer__brand .logo__mark{background:var(--brand-600);}
.footer__brand p{font-size:14px;line-height:1.8;margin-top:16px;max-width:320px;color:rgba(242,246,244,.7);}
.footer__col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px;}
.footer__col li+li{margin-top:11px;}
.footer__col a{font-size:14px;color:rgba(242,246,244,.72);border-bottom:1px solid transparent;transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);}
.footer__col a:hover{color:var(--gold-400);border-color:var(--gold-400);}
.footer__bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:24px 0 30px;font-size:13px;color:rgba(242,246,244,.6);flex-wrap:wrap;}
.footer__bottom nav{display:flex;gap:22px;flex-wrap:wrap;}
.footer__bottom nav a:hover{color:var(--gold-400);}
/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity var(--dur-slow) var(--ease),transform var(--dur-slow) var(--ease);}
.reveal.is-visible{opacity:1;transform:translateY(0);}
/* ============ 响应式 ============ */
@media (max-width:1279px){
  .hero h1{font-size:44px;}
  .hero__grid{gap:40px;}
  .card-grid{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .topbar{height:72px;gap:18px;}
  .site-header.is-stuck .topbar{height:60px;}
  .searchbar{max-width:340px;}
  .hero__grid{grid-template-columns:1fr;gap:36px;}
  .hero h1{font-size:38px;}
  .hero__media img{height:360px;}
  .section__head{flex-direction:column;align-items:flex-start;gap:16px;}
  .section__head h2{font-size:30px;}
  .levels{grid-template-columns:1fr;gap:20px;}
  .level-card--feature{padding:28px;}
  .card-grid,.card-grid--3{grid-template-columns:repeat(2,1fr);}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta__inner{flex-direction:column;align-items:flex-start;gap:28px;padding:64px 0;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .searchbar,.header-actions{display:none;}
  .nav-toggle{display:inline-flex;}
  .mobile-search{display:block;}
  .subnav__inner{gap:20px;height:48px;mask-image:linear-gradient(90deg,#000 88%,transparent);-webkit-mask-image:linear-gradient(90deg,#000 88%,transparent);}
  .hero{padding:52px 0 56px;}
  .hero h1{font-size:30px;margin:18px 0 16px;}
  .hero__sub{font-size:17px;}
  .hero__stats{gap:28px;flex-wrap:wrap;margin-top:32px;}
  .stat__num{font-size:34px;}
  .hero__media img{height:270px;}
  .hero__deco{display:none;}
  .trust__grid{grid-template-columns:1fr 1fr;gap:18px;padding:24px 0;}
  .section__head h2{font-size:24px;}
  .card-grid,.card-grid--3{grid-template-columns:1fr;}
  .cta h2{font-size:24px;}
  .footer__grid{grid-template-columns:1fr;gap:28px;}
  .faq__q{font-size:16px;padding:18px;}
  .faq__a p{margin-left:18px;padding:0 18px 20px 20px;font-size:15px;}
  .plan-table th,.plan-table td{padding:14px 16px;font-size:14px;}
}
@media (max-width:479px){
  .hero h1{font-size:27px;}
  .btn{width:100%;justify-content:center;}
  .hero__actions{flex-direction:column;}
  .cta__actions{width:100%;flex-direction:column;}
  .footer__bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --brand-700:#123C36;
  --brand-600:#1C564D;
  --brand-100:#DCE8E4;
  --accent-500:#C2683A;
  --accent-600:#A9552C;
  --accent-100:#F5E3D8;
  --gold-400:#D9A94E;
  --bg:#F6F4EF;
  --bg-elevated:#FFFFFF;
  --bg-dark:#0B2B27;
  --ink-900:#141A19;
  --ink-600:#4E5A58;
  --ink-400:#8A9492;
  --line:#E4E1D8;
  --line-strong:#CFCABC;
  --white-soft:#F2F6F4;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-input:12px;
  --shadow-1:0 1px 2px rgba(11,43,39,.05), 0 10px 28px -18px rgba(11,43,39,.18);
  --shadow-2:0 2px 4px rgba(11,43,39,.06), 0 24px 48px -28px rgba(11,43,39,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --serif:"Noto Serif SC","Songti SC","STSong","SimSun",serif;
  --sans:system-ui,-apple-system,"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:600;line-height:1.3;letter-spacing:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.94);
  border-bottom:1px solid var(--line);
}
.header__top{
  display:flex;align-items:center;gap:24px;
  min-height:76px;padding-top:12px;padding-bottom:12px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo__mark{
  width:34px;height:34px;border-radius:9px;
  background:var(--brand-700);color:var(--white-soft);
  font-family:var(--serif);font-size:19px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.logo__text{
  font-family:var(--serif);font-size:21px;font-weight:700;color:var(--brand-700);
  white-space:nowrap;
}
.search{
  position:relative;display:flex;align-items:center;
  flex:1 1 auto;max-width:520px;height:48px;
  background:var(--bg-elevated);border:1px solid var(--line);
  border-radius:var(--radius-input);padding:0 6px 0 14px;
  transition:border-color 240ms var(--ease),box-shadow 240ms var(--ease);
}
.search:focus-within{border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(220,232,228,.85)}
.search__icon{width:18px;height:18px;flex:0 0 auto;stroke:var(--ink-400);fill:none;stroke-width:1.5}
.search input{
  flex:1 1 auto;height:100%;min-width:0;border:0;background:transparent;
  outline:none;font-size:15px;padding:0 10px;
}
.search input::placeholder{color:var(--ink-400)}
.search__btn{
  flex:0 0 auto;height:36px;padding:0 16px;border:0;cursor:pointer;
  background:var(--brand-700);color:var(--white-soft);
  border-radius:8px;font-size:14px;font-weight:600;
  transition:background 240ms var(--ease);
}
.search__btn:hover{background:var(--brand-600)}
.header__actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;margin-left:auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background 240ms var(--ease),color 240ms var(--ease),border-color 240ms var(--ease),transform 240ms var(--ease),box-shadow 240ms var(--ease);
}
.btn--primary{background:var(--accent-500);color:#fff;box-shadow:var(--shadow-1)}
.btn--primary:hover{background:var(--accent-600);transform:translateY(-1px)}
.btn--primary:active{transform:translateY(0)}
.btn--outline{background:var(--bg-elevated);border-color:var(--line-strong);color:var(--ink-900)}
.btn--outline:hover{border-color:var(--brand-600);color:var(--brand-700);background:rgba(220,232,228,.35)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn--ghost{background:transparent;border-color:rgba(255,255,255,.4);color:#fff}
.btn--ghost:hover{background:#fff;color:var(--brand-700);border-color:#fff}
.hamburger{
  display:none;width:44px;height:44px;border:1px solid var(--line-strong);
  background:var(--bg-elevated);border-radius:10px;cursor:pointer;
  align-items:center;justify-content:center;padding:0;
}
.hamburger span{display:block;width:18px;height:1.6px;background:var(--ink-900);position:relative}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:1.6px;background:var(--ink-900);
}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}

.subnav{border-top:1px solid var(--line)}
.subnav__inner{
  display:flex;align-items:center;gap:30px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.subnav__inner::-webkit-scrollbar{display:none}
.subnav__inner a{
  position:relative;padding:15px 0;font-size:15px;color:var(--ink-600);
  white-space:nowrap;transition:color 240ms var(--ease);
}
.subnav__inner a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--accent-500);transform:scaleX(0);transform-origin:left;
  transition:transform 240ms var(--ease);
}
.subnav__inner a:hover{color:var(--brand-700)}
.subnav__inner a:hover::after,.subnav__inner a.is-active::after{transform:scaleX(1)}
.subnav__inner a.is-active{color:var(--brand-700);font-weight:600}

/* ---------- 抽屉 ---------- */
.scrim{
  position:fixed;inset:0;background:rgba(11,43,39,.42);opacity:0;visibility:hidden;
  transition:opacity 240ms var(--ease),visibility 240ms var(--ease);z-index:70;
}
.scrim.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(360px,86vw);
  background:var(--bg);z-index:80;transform:translateX(100%);
  transition:transform 320ms var(--ease);overflow-y:auto;padding:24px 22px 40px;
  border-left:1px solid var(--line);
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer__close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line-strong);
  background:var(--bg-elevated);cursor:pointer;font-size:18px;line-height:1;
}
.drawer .search{max-width:100%;margin-bottom:22px}
.drawer__title{font-size:13px;letter-spacing:.08em;color:var(--ink-400);margin:18px 0 10px}
.drawer__links{display:flex;flex-direction:column}
.drawer__links a{
  padding:13px 0;border-bottom:1px solid var(--line);font-size:16px;color:var(--ink-600);
}
.drawer__links a.is-active{color:var(--brand-700);font-weight:600}
.drawer .btn{width:100%;margin-top:24px}

/* ---------- 面包屑 ---------- */
.crumb{padding:26px 0 0;font-size:14px;color:var(--ink-400)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:var(--line-strong)}
.crumb a{color:var(--ink-400);transition:color 240ms var(--ease)}
.crumb a:hover{color:var(--brand-700)}
.crumb li[aria-current]{color:var(--ink-600);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头部 ---------- */
.article-head{padding:22px 0 30px;border-bottom:1px solid var(--line)}
.article-head h1{
  font-size:40px;line-height:1.24;max-width:900px;color:var(--brand-700);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-top:20px;font-size:14px;color:var(--ink-600);
}
.chip{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;background:var(--brand-100);color:var(--brand-700);
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.chip--accent{background:var(--accent-100);color:var(--accent-500)}
.meta-dot{width:3px;height:3px;border-radius:50%;background:var(--line-strong)}

/* ---------- 正文布局 ---------- */
.article-body{padding:48px 0 72px}
.article-layout{
  display:grid;grid-template-columns:minmax(0,760px) 300px;
  gap:56px;justify-content:space-between;align-items:start;
}
.prose{font-size:18px;line-height:1.9;color:var(--ink-900);max-width:760px;overflow-wrap:break-word}
.prose>*:first-child{margin-top:0}
.prose p{margin:0 0 1.2em}
.prose h2{
  font-size:28px;margin:44px 0 16px;padding-left:14px;line-height:1.35;
  border-left:3px solid var(--brand-600);color:var(--brand-700);
}
.prose h3{font-size:20px;margin:30px 0 12px;color:var(--ink-900)}
.prose h4{font-size:18px;margin:24px 0 10px}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.35em}
.prose ul li{list-style:disc;margin:.45em 0}
.prose ol li{list-style:decimal;margin:.45em 0}
.prose li::marker{color:var(--accent-500)}
.prose blockquote{
  margin:26px 0;padding:18px 22px;background:var(--brand-100);
  border-left:3px solid var(--brand-600);border-radius:0 12px 12px 0;
  color:var(--brand-700);
}
.prose img{border-radius:12px;margin:26px 0 10px}
.prose figure{margin:26px 0}
.prose figcaption{font-size:14px;color:var(--ink-400);margin-top:10px;text-align:center}
.prose table{
  width:100%;border-collapse:collapse;margin:26px 0;font-size:16px;
  display:block;overflow-x:auto;white-space:nowrap;
}
.prose th,.prose td{border:1px solid var(--line-strong);padding:11px 16px;text-align:left}
.prose th{background:var(--bg);font-weight:600;color:var(--brand-700)}
.prose a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
.prose a:hover{color:var(--accent-500)}
.prose code{background:var(--bg);padding:2px 6px;border-radius:3px;font-size:.9em}
.prose hr{border:0;border-top:1px solid var(--line);margin:36px 0}
.prose strong{color:var(--brand-700)}

.empty-state{
  background:var(--bg-elevated);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:56px 32px;text-align:center;box-shadow:var(--shadow-1);
}
.empty-state__icon{
  width:54px;height:54px;margin:0 auto 18px;border-radius:14px;
  background:var(--brand-100);display:flex;align-items:center;justify-content:center;
  stroke:var(--brand-700);fill:none;stroke-width:1.5;
}
.empty-state h2{font-size:24px;margin-bottom:10px}
.empty-state p{color:var(--ink-600);font-size:16px;margin-bottom:22px}

/* ---------- 侧栏 ---------- */
.sidebar{display:flex;flex-direction:column;gap:22px;position:sticky;top:132px}
.side-card{
  background:var(--bg-elevated);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-1);
}
.side-card h3{
  font-size:16px;margin-bottom:14px;color:var(--brand-700);
  display:flex;align-items:center;gap:8px;
}
.side-card h3::before{content:"";width:3px;height:15px;background:var(--accent-500);border-radius:2px}
.side-list li+li{border-top:1px solid var(--line)}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 0;font-size:15px;color:var(--ink-600);transition:color 240ms var(--ease);
}
.side-list a:hover{color:var(--brand-700)}
.side-list a span{color:var(--line-strong);transition:transform 240ms var(--ease),color 240ms var(--ease)}
.side-list a:hover span{color:var(--accent-500);transform:translateX(3px)}
.side-note{font-size:14px;color:var(--ink-600);line-height:1.75}
.side-note li{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px dashed var(--line)}
.side-note li:last-child{border-bottom:0}
.side-note b{font-weight:600;color:var(--ink-900)}
.side-cta{
  background:var(--bg-dark);border:0;color:var(--white-soft);
}
.side-cta h3{color:#fff}
.side-cta h3::before{background:var(--gold-400)}
.side-cta p{font-size:14px;color:rgba(242,246,244,.78);margin-bottom:18px;line-height:1.75}
.side-cta .btn{width:100%}

/* ---------- 相关阅读 ---------- */
.related{padding:72px 0;border-top:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.section-head h2{font-size:32px;color:var(--brand-700)}
.section-head p{font-size:15px;color:var(--ink-600);margin-top:8px}
.text-link{
  font-size:15px;font-weight:600;color:var(--brand-700);
  display:inline-flex;align-items:center;gap:6px;
  border-bottom:1px solid transparent;transition:color 240ms var(--ease),border-color 240ms var(--ease);
}
.text-link:hover{color:var(--accent-500);border-color:var(--accent-500)}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  background:var(--bg-elevated);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform 240ms var(--ease),box-shadow 240ms var(--ease),border-color 240ms var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--brand-600)}
.card__media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--brand-100)}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform 480ms var(--ease)}
.card:hover .card__media img{transform:scale(1.03)}
.card__badge{
  position:absolute;top:12px;left:12px;height:26px;padding:0 11px;border-radius:999px;
  background:rgba(11,43,39,.72);color:#fff;font-size:12px;display:flex;align-items:center;
  letter-spacing:.04em;
}
.card__body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.card__body h3{font-size:19px;line-height:1.45;margin-bottom:10px;color:var(--brand-700)}
.card__body p{font-size:15px;color:var(--ink-600);line-height:1.75;margin-bottom:16px}
.card__foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:12px;font-size:13px;color:var(--ink-400);
}
.card__foot .arrow{color:var(--brand-700);font-weight:600;transition:transform 240ms var(--ease)}
.card:hover .card__foot .arrow{transform:translateX(4px)}

/* ---------- 返回入口 ---------- */
.article-return{
  padding:0 0 72px;display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center;
}
.article-return .btn{min-width:200px}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--bg-dark);color:var(--white-soft);position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.05;
  background-image:linear-gradient(rgba(255,255,255,.9) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:48px 48px;
}
.cta-band .container{
  position:relative;display:flex;align-items:center;justify-content:space-between;
  gap:32px;padding-top:64px;padding-bottom:64px;flex-wrap:wrap;
}
.cta-band h2{font-size:32px;color:#fff;max-width:620px}
.cta-band p{font-size:16px;color:rgba(242,246,244,.78);margin-top:12px;max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-dark);color:var(--white-soft);margin-top:0}
.footer__grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding:64px 0 40px;
}
.footer__brand .logo__mark{background:var(--brand-600)}
.footer__brand .logo__text{color:#fff}
.footer__brand p{
  font-size:14px;line-height:1.85;color:rgba(242,246,244,.7);margin-top:16px;max-width:340px;
}
.footer__col h4{font-size:15px;color:#fff;margin-bottom:16px;font-family:var(--sans);font-weight:600}
.footer__col ul{display:flex;flex-direction:column;gap:11px}
.footer__col li{font-size:14px;color:rgba(242,246,244,.72)}
.footer__col a{
  font-size:14px;color:rgba(242,246,244,.72);
  border-bottom:1px solid transparent;transition:color 240ms var(--ease),border-color 240ms var(--ease);
}
.footer__col a:hover{color:var(--gold-400);border-color:var(--gold-400)}
.footer__bottom{
  border-top:1px solid rgba(242,246,244,.14);
  padding:22px 0 34px;display:flex;align-items:center;justify-content:space-between;
  gap:18px;flex-wrap:wrap;font-size:13px;color:rgba(242,246,244,.6);
}
.footer__bottom nav{display:flex;gap:22px;flex-wrap:wrap}
.footer__bottom a{color:rgba(242,246,244,.6);border-bottom:1px solid transparent;transition:color 240ms var(--ease),border-color 240ms var(--ease)}
.footer__bottom a:hover{color:var(--gold-400);border-color:var(--gold-400)}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity 480ms var(--ease),transform 480ms var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 断点 ---------- */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:40px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .search{max-width:340px}
  .header__actions .btn--outline{display:none}
  .article-head h1{font-size:32px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px}
  .sidebar{position:static}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .header__top{min-height:64px;gap:12px;flex-wrap:wrap;padding-top:10px;padding-bottom:10px}
  .logo__text{font-size:18px}
  .header__actions{display:none}
  .hamburger{display:flex;margin-left:auto}
  .header__search-wrap{order:3;width:100%;padding-bottom:10px}
  .search{max-width:100%;height:44px}
  .article-head{padding:18px 0 24px}
  .article-head h1{font-size:28px}
  .article-body{padding:36px 0 56px}
  .prose{font-size:17px;line-height:1.85}
  .prose h2{font-size:23px;margin:34px 0 14px}
  .prose h3{font-size:19px}
  .related{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;margin-bottom:24px}
  .section-head h2{font-size:26px}
  .rel-grid{grid-template-columns:minmax(0,1fr);gap:18px}
  .cta-band .container{padding-top:52px;padding-bottom:52px}
  .cta-band h2{font-size:25px}
  .footer__grid{grid-template-columns:1fr;gap:28px;padding:52px 0 32px}
  .footer__bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  .article-head h1{font-size:25px}
  .rel-grid{gap:16px}
  .side-card{padding:18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --brand-700:#123C36;
  --brand-600:#1C564D;
  --brand-100:#DCE8E4;
  --accent-500:#C2683A;
  --accent-600:#A9552C;
  --accent-100:#F5E3D8;
  --gold-400:#D9A94E;
  --bg:#F6F4EF;
  --bg-elevated:#FFFFFF;
  --bg-dark:#0B2B27;
  --ink-900:#141A19;
  --ink-600:#4E5A58;
  --ink-400:#8A9492;
  --line:#E4E1D8;
  --line-strong:#CFCABC;
  --shadow-1:0 1px 2px rgba(11,43,39,.05),0 10px 28px -18px rgba(11,43,39,.18);
  --shadow-2:0 2px 4px rgba(11,43,39,.06),0 24px 48px -28px rgba(11,43,39,.28);
  --radius-card:16px;
  --radius-btn:10px;
  --radius-input:12px;
  --container:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-serif:"Noto Serif SC","Songti SC","STSong","SimSun",serif;
  --font-sans:system-ui,-apple-system,"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color 240ms var(--ease),border-color 240ms var(--ease)}
button{font:inherit;color:inherit}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:600;margin:0;color:var(--ink-900);line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section__head{max-width:720px;margin-bottom:44px}
.section__head h2{font-size:38px;line-height:1.28}
.section__head p{margin-top:14px;color:var(--ink-600);font-size:16px}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--brand-600);
  background:var(--brand-100);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:18px;
}
/* ---------- logo ---------- */
.logo{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-serif);font-weight:700;font-size:23px;color:var(--brand-700);white-space:nowrap}
.logo__mark{
  width:36px;height:36px;border-radius:10px;
  background:var(--brand-700);color:#F2F6F4;
  display:grid;place-items:center;
  font-size:19px;font-family:var(--font-serif);
}
/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.92);
  border-bottom:1px solid transparent;
  transition:border-color 240ms var(--ease),box-shadow 240ms var(--ease),background 240ms var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--shadow-1)}
.header__main{display:flex;align-items:center;gap:24px;padding:16px 0;transition:padding 240ms var(--ease)}
.site-header.is-scrolled .header__main{padding:10px 0}
.searchbox{
  position:relative;display:flex;align-items:center;gap:10px;
  flex:1 1 auto;max-width:520px;height:48px;
  background:var(--bg-elevated);
  border:1px solid var(--line);
  border-radius:var(--radius-input);
  padding:0 6px 0 16px;
  transition:border-color 240ms var(--ease),box-shadow 240ms var(--ease);
}
.searchbox:focus-within{border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(220,232,228,.9)}
.searchbox svg{flex:0 0 auto;color:var(--ink-400)}
.searchbox input{
  flex:1 1 auto;min-width:0;height:100%;
  border:0;background:transparent;outline:none;
  font-size:15px;color:var(--ink-900);
}
.searchbox input::placeholder{color:var(--ink-400)}
.searchbox__btn{
  flex:0 0 auto;height:36px;padding:0 16px;
  border:0;border-radius:8px;
  background:var(--brand-700);color:#F2F6F4;
  font-size:14px;cursor:pointer;
  transition:background 240ms var(--ease);
}
.searchbox__btn:hover{background:var(--brand-600)}
.header__actions{margin-left:auto;display:flex;align-items:center;gap:10px}
/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:transform 240ms var(--ease),background 240ms var(--ease),color 240ms var(--ease),border-color 240ms var(--ease),box-shadow 240ms var(--ease);
}
.btn--primary{background:var(--accent-500);color:#fff;box-shadow:var(--shadow-1)}
.btn--primary:hover{background:var(--accent-600);transform:translateY(-1px)}
.btn--primary:active{transform:translateY(0)}
.btn--primary svg{transition:transform 240ms var(--ease)}
.btn--primary:hover svg{transform:translateX(4px)}
.btn--second{background:var(--bg-elevated);border-color:var(--line-strong);color:var(--ink-900)}
.btn--second:hover{border-color:var(--brand-600);color:var(--brand-700);background:rgba(220,232,228,.35)}
.btn--ghost{background:transparent;border-color:rgba(255,255,255,.4);color:#F2F6F4}
.btn--ghost:hover{background:#F2F6F4;color:var(--brand-700);border-color:#F2F6F4}
.btn--sm{height:42px;padding:0 18px;font-size:14px}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-weight:600;font-size:15px;border-bottom:1px solid transparent}
.link-more:hover{color:var(--accent-500);border-bottom-color:var(--accent-500)}
/* ---------- subnav ---------- */
.subnav{border-top:1px solid var(--line)}
.subnav__inner{display:flex;gap:30px;overflow-x:auto;-ms-overflow-style:none;scrollbar-width:none}
.subnav__inner::-webkit-scrollbar{display:none}
.subnav__inner a{
  position:relative;
  padding:13px 2px;
  font-size:15px;
  color:var(--ink-600);
  white-space:nowrap;
}
.subnav__inner a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;
  background:var(--accent-500);transition:width 240ms var(--ease);
}
.subnav__inner a:hover{color:var(--brand-700)}
.subnav__inner a:hover::after{width:100%}
.subnav__inner a.is-active{color:var(--brand-700);font-weight:600}
.subnav__inner a.is-active::after{width:100%}
/* ---------- breadcrumb ---------- */
.crumb{padding-top:28px;font-size:14px;color:var(--ink-400)}
.crumb ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumb li+li::before{content:"/";margin-right:8px;color:var(--line-strong)}
.crumb a:hover{color:var(--brand-600)}
.crumb .is-current{color:var(--ink-600)}
/* ---------- hero ---------- */
.hero{padding:36px 0 88px}
.hero__inner{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;position:relative}
.hero__deco{
  position:absolute;left:-140px;top:-120px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(18,60,54,.06);box-shadow:0 0 0 60px rgba(18,60,54,.03);pointer-events:none;
}
.hero h1{font-size:50px;line-height:1.18}
.hero__sub{margin-top:20px;font-size:17px;color:var(--ink-600);max-width:56ch}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero__tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.tag{
  display:inline-block;font-size:13px;letter-spacing:.04em;
  padding:6px 14px;border-radius:999px;
  background:var(--bg-elevated);border:1px solid var(--line);color:var(--ink-600);
}
.hero__figure{position:relative;border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-2);aspect-ratio:16/11;background:var(--brand-100)}
.hero__figure img{width:100%;height:100%;object-fit:cover}
.hero__figure figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:16px 20px;font-size:13px;color:#F2F6F4;
  background:linear-gradient(180deg,rgba(11,43,39,0),rgba(11,43,39,.72));
}
.hero__stats{display:flex;flex-wrap:wrap;gap:48px;margin-top:44px;padding-top:28px;border-top:1px solid var(--line)}
.hero__stat strong{display:block;font-family:var(--font-serif);font-size:44px;line-height:1.1;color:var(--brand-700)}
.hero__stat span{font-size:14px;color:var(--ink-600)}
/* ---------- trust strip ---------- */
.trust{background:var(--bg-elevated);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:32px 0}
.trust__item{display:flex;align-items:center;gap:12px;font-size:15px;color:var(--ink-600)}
.trust__item svg{flex:0 0 auto;color:var(--brand-600)}
/* ---------- steps ---------- */
.steps{margin-top:8px}
.step{position:relative;padding-left:80px;padding-bottom:44px}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";position:absolute;left:23px;top:52px;bottom:4px;width:1px;background:var(--line-strong);
}
.step:last-child::before{display:none}
.step__marker{
  position:absolute;left:0;top:0;width:48px;height:48px;border-radius:50%;
  background:var(--brand-100);color:var(--brand-700);
  display:grid;place-items:center;
  font-family:var(--font-serif);font-size:18px;font-weight:700;
}
.step__body h3{font-size:22px}
.step__body p{margin-top:10px;color:var(--ink-600);font-size:16px;max-width:68ch}
.step__toggle{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:14px;padding:6px 0;border:0;background:none;
  color:var(--brand-600);font-size:14px;font-weight:600;cursor:pointer;
}
.step__toggle:hover{color:var(--accent-500)}
.step__toggle svg{transition:transform 240ms var(--ease)}
.step__toggle[aria-expanded="true"] svg{transform:rotate(180deg)}
.step__detail{margin-top:14px;background:var(--bg-elevated);border:1px solid var(--line);border-radius:var(--radius-card);padding:20px 24px;box-shadow:var(--shadow-1)}
.step__detail li{position:relative;padding-left:20px;font-size:15px;color:var(--ink-600);margin-bottom:8px}
.step__detail li:last-child{margin-bottom:0}
.step__detail li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--accent-500)}
/* ---------- media block ---------- */
.media__inner{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center}
.media__figure{border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);background:var(--brand-100);aspect-ratio:16/10}
.media__figure img{width:100%;height:100%;object-fit:cover}
.media__body h2{font-size:34px;line-height:1.3}
.media__body>p{margin-top:16px;color:var(--ink-600);font-size:16px}
.check-list{margin-top:26px;display:grid;gap:14px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:16px;color:var(--ink-600)}
.check-list svg{flex:0 0 auto;margin-top:5px;color:var(--brand-600)}
/* ---------- note cards ---------- */
.note-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.note-card{
  background:var(--bg-elevated);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
  transition:box-shadow 240ms var(--ease),transform 240ms var(--ease),border-color 240ms var(--ease);
}
.note-card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);border-color:var(--brand-600)}
.note-card:nth-child(2){margin-top:32px}
.note-card:nth-child(3){margin-top:64px}
.note-card .badge{margin-bottom:16px}
.note-card h3{font-size:20px}
.note-card p{margin-top:12px;color:var(--ink-600);font-size:15px}
.badge{
  display:inline-block;font-size:12px;letter-spacing:.06em;
  padding:4px 12px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-700);
}
.badge--accent{background:var(--accent-100);color:var(--accent-500)}
/* ---------- faq ---------- */
.faq{max-width:880px}
.faq__item{background:var(--bg-elevated);border-bottom:1px solid var(--line)}
.faq__item:first-child{border-top:1px solid var(--line)}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;border:0;background:none;text-align:left;cursor:pointer;
  font-size:18px;font-weight:600;color:var(--ink-900);font-family:var(--font-sans);
}
.faq__q:hover{color:var(--brand-700)}
.faq__icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform 320ms var(--ease);
}
.faq__icon::before,.faq__icon::after{
  content:"";position:absolute;background:var(--accent-500);border-radius:2px;
}
.faq__icon::before{left:0;top:10px;width:22px;height:2px}
.faq__icon::after{left:10px;top:0;width:2px;height:22px}
.faq__item.is-open .faq__icon{transform:rotate(45deg)}
.faq__a{max-height:0;overflow:hidden;transition:max-height 320ms var(--ease)}
.faq__a-inner{
  padding:0 4px 24px 18px;border-left:2px solid var(--accent-500);
  color:var(--ink-600);font-size:16px;line-height:1.8;
}
/* ---------- cta ---------- */
.cta{background:var(--bg-dark);color:#F2F6F4;position:relative;overflow:hidden}
.cta::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:56px 56px;opacity:.6;pointer-events:none;
}
.cta__inner{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.cta h2{color:#F2F6F4;font-size:36px;line-height:1.3}
.cta p{margin-top:14px;color:rgba(242,246,244,.78);font-size:16px;max-width:52ch}
.cta__actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
/* ---------- footer ---------- */
.site-footer{background:var(--bg-dark);color:rgba(242,246,244,.8);padding:72px 0 28px;border-top:1px solid rgba(255,255,255,.08)}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer__brand .logo{color:#F2F6F4;font-size:21px}
.footer__brand .logo__mark{background:#F2F6F4;color:var(--brand-700)}
.footer__brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(242,246,244,.68);max-width:36ch}
.footer__col h4{font-size:15px;color:#F2F6F4;font-family:var(--font-sans);font-weight:600;margin-bottom:16px}
.footer__col li{margin-bottom:10px;font-size:14px;color:rgba(242,246,244,.68)}
.footer__col a{font-size:14px;border-bottom:1px solid transparent}
.footer__col a:hover{color:var(--gold-400);border-bottom-color:var(--gold-400)}
.footer__bottom{
  margin-top:56px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;
  font-size:13px;color:rgba(242,246,244,.6);
}
.footer__bottom nav{display:flex;flex-wrap:wrap;gap:20px}
.footer__bottom a:hover{color:var(--gold-400)}
/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity 480ms var(--ease),transform 480ms var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
/* ---------- responsive ---------- */
@media (max-width:1279px){
  .hero h1{font-size:42px}
  .hero__inner{gap:40px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .section__head h2{font-size:30px}
  .hero{padding:28px 0 64px}
  .hero h1{font-size:38px}
  .hero__inner{grid-template-columns:1fr;gap:36px}
  .hero__figure{aspect-ratio:16/9}
  .hero__deco{display:none}
  .trust__grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .media__inner{grid-template-columns:1fr;gap:32px}
  .media__body h2{font-size:28px}
  .note-cards{grid-template-columns:1fr;gap:18px}
  .note-card:nth-child(2),.note-card:nth-child(3){margin-top:0}
  .cta__inner{grid-template-columns:1fr;gap:28px}
  .cta__actions{justify-content:flex-start}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .header__main{flex-wrap:wrap;gap:14px;padding:12px 0}
  .logo{font-size:20px}
  .logo__mark{width:32px;height:32px;font-size:17px}
  .searchbox{order:3;flex:1 1 100%;max-width:none;height:44px}
  .header__actions{margin-left:auto}
  .header__actions .btn--second{display:none}
  .btn{height:42px;padding:0 16px;font-size:14px}
  .subnav__inner{gap:22px;padding-right:18px}
  .subnav__inner a{font-size:14px;padding:12px 2px}
  .crumb{padding-top:20px}
  .hero h1{font-size:30px}
  .hero__sub{font-size:16px;margin-top:16px}
  .hero__actions .btn{flex:1 1 auto}
  .hero__stats{gap:28px;margin-top:32px}
  .hero__stat strong{font-size:34px}
  .section__head h2{font-size:24px}
  .section__head p{font-size:15px}
  .step{padding-left:60px;padding-bottom:34px}
  .step::before{left:19px}
  .step__marker{width:40px;height:40px;font-size:16px}
  .step__body h3{font-size:19px}
  .step__body p{font-size:15px}
  .faq__q{font-size:16px;padding:18px 2px}
  .faq__a-inner{padding-left:14px;font-size:15px}
  .cta h2{font-size:26px}
  .footer__grid{grid-template-columns:1fr;gap:28px}
  .footer__bottom{flex-direction:column;gap:12px}
  .site-footer{padding:56px 0 24px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --brand-700:#123C36;
  --brand-600:#1C564D;
  --brand-100:#DCE8E4;
  --accent-500:#C2683A;
  --accent-600:#A9552C;
  --accent-100:#F5E3D8;
  --gold-400:#D9A94E;
  --bg:#F6F4EF;
  --bg-elevated:#FFFFFF;
  --bg-dark:#0B2B27;
  --bg-muted:#EFEDE6;
  --ink-900:#141A19;
  --ink-600:#4E5A58;
  --ink-400:#8A9492;
  --line:#E4E1D8;
  --line-strong:#CFCABC;
  --shadow-1:0 1px 2px rgba(11,43,39,.05),0 10px 28px -18px rgba(11,43,39,.18);
  --shadow-2:0 2px 4px rgba(11,43,39,.06),0 24px 48px -28px rgba(11,43,39,.28);
  --r-card:16px;
  --r-btn:10px;
  --r-input:12px;
  --r-pill:999px;
  --serif:"Noto Serif SC","Songti SC","STSong","SimSun",serif;
  --sans:system-ui,-apple-system,"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:700;color:var(--brand-700);line-height:1.28;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
svg{display:block;}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
  white-space:nowrap;
}
.btn__arrow{transition:transform .24s var(--ease);}
.btn--primary{background:var(--accent-500);color:#fff;box-shadow:var(--shadow-1);}
.btn--primary:hover{background:var(--accent-600);transform:translateY(-1px);}
.btn--primary:hover .btn__arrow{transform:translateX(4px);}
.btn--primary:active{transform:translateY(0);}
.btn--outline{background:#fff;border-color:var(--line-strong);color:var(--ink-900);}
.btn--outline:hover{border-color:var(--brand-600);color:var(--brand-700);background:rgba(220,232,228,.35);}
.btn--ghost{border-color:rgba(255,255,255,.42);color:#F2F6F4;}
.btn--ghost:hover{background:#fff;color:var(--brand-700);border-color:#fff;}
.btn--block{width:100%;}
.btn--lg{height:52px;padding:0 28px;font-size:16px;}

.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--brand-700);
  border-bottom:1px solid var(--line-strong);padding-bottom:2px;
  transition:color .24s var(--ease),border-color .24s var(--ease);
}
.text-link:hover{color:var(--accent-500);border-color:var(--accent-500);}
.text-link:hover .btn__arrow{transform:translateX(4px);}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.92);
  border-bottom:1px solid var(--line);
  backdrop-filter:none;
}
.header__main{
  display:flex;align-items:center;gap:24px;
  min-height:78px;padding-top:14px;padding-bottom:14px;
  transition:min-height .24s var(--ease),padding .24s var(--ease);
}
.site-header.is-stuck .header__main{min-height:64px;padding-top:8px;padding-bottom:8px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo__mark{
  width:36px;height:36px;border-radius:10px;
  background:var(--brand-700);color:#F2F6F4;
  font-family:var(--serif);font-size:19px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:0;
}
.logo__text{
  font-family:var(--serif);font-weight:700;font-size:22px;
  color:var(--brand-700);line-height:1.1;
}
.searchbar{
  position:relative;display:flex;align-items:center;gap:0;
  flex:1 1 420px;max-width:520px;height:48px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-input);
  padding-left:42px;padding-right:4px;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.searchbar:focus-within{border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(28,86,77,.14);}
.searchbar__icon{
  position:absolute;left:14px;top:50%;transform:translateY(-50%);
  width:20px;height:20px;stroke:var(--ink-400);stroke-width:1.5;fill:none;
  stroke-linecap:round;stroke-linejoin:round;
}
.searchbar__input{
  flex:1 1 auto;min-width:0;height:100%;border:0;background:transparent;
  font-size:15px;color:var(--ink-900);
}
.searchbar__input::placeholder{color:var(--ink-400);}
.searchbar__input:focus{outline:none;}
.searchbar__btn{
  height:38px;padding:0 16px;border-radius:8px;
  background:var(--brand-700);color:#F2F6F4;font-size:14px;font-weight:600;
  transition:background .24s var(--ease);
}
.searchbar__btn:hover{background:var(--brand-600);}
.header__actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line-strong);
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle__bars,.nav-toggle__bars::before,.nav-toggle__bars::after{
  display:block;width:18px;height:2px;background:var(--brand-700);border-radius:2px;content:"";
  position:relative;
}
.nav-toggle__bars::before{position:absolute;top:-6px;}
.nav-toggle__bars::after{position:absolute;top:6px;}

.subnav{border-top:1px solid var(--line);}
.subnav__wrap{
  display:flex;align-items:center;gap:8px;overflow-x:auto;
  scrollbar-width:none;-ms-overflow-style:none;
}
.subnav__wrap::-webkit-scrollbar{display:none;}
.subnav__inner{display:flex;align-items:center;gap:28px;min-height:50px;}
.subnav__inner a{
  position:relative;font-size:15px;color:var(--ink-600);padding:14px 2px;white-space:nowrap;
  transition:color .24s var(--ease);
}
.subnav__inner a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--accent-500);transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.subnav__inner a:hover{color:var(--brand-700);}
.subnav__inner a:hover::after{transform:scaleX(1);}
.subnav__inner a.is-active{color:var(--brand-700);font-weight:600;}
.subnav__inner a.is-active::after{transform:scaleX(1);}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;top:0;right:0;z-index:90;
  width:min(340px,86vw);height:100%;
  background:var(--bg-elevated);border-left:1px solid var(--line);
  padding:20px;transform:translateX(105%);
  transition:transform .32s var(--ease);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer__close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line-strong);
  font-size:20px;line-height:1;color:var(--ink-600);
}
.drawer .searchbar{max-width:none;flex:none;height:44px;margin-bottom:18px;}
.drawer__nav{display:flex;flex-direction:column;border-top:1px solid var(--line);margin-bottom:20px;}
.drawer__nav a{
  padding:15px 2px;border-bottom:1px solid var(--line);
  font-size:16px;color:var(--ink-600);
}
.drawer__nav a.is-active{color:var(--brand-700);font-weight:600;}
.drawer-mask{
  position:fixed;inset:0;z-index:80;background:rgba(11,43,39,.42);
  opacity:0;pointer-events:none;transition:opacity .32s var(--ease);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--ink-400);padding:22px 0 0;
}
.crumbs a:hover{color:var(--brand-700);}
.crumbs__sep{color:var(--line-strong);}
.crumbs__now{color:var(--ink-600);}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--brand-700);
  color:#F2F6F4;
  margin-top:8px;
}
.page-hero__bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  opacity:.42;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,43,39,.92) 0%,rgba(11,43,39,.74) 52%,rgba(11,43,39,.42) 100%);
}
.page-hero__inner{position:relative;z-index:2;padding:84px 0 76px;max-width:760px;}
.page-hero__tag{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;
  border-radius:var(--r-pill);background:rgba(220,232,228,.16);
  border:1px solid rgba(220,232,228,.32);
  font-size:13px;letter-spacing:.08em;color:#DCE8E4;margin-bottom:20px;
}
.page-hero h1{
  color:#F6F8F6;font-size:50px;line-height:1.18;margin-bottom:18px;
}
.page-hero__lead{
  font-size:19px;line-height:1.8;color:rgba(242,246,244,.86);
  max-width:620px;margin-bottom:30px;
}
.page-hero__actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--muted{background:var(--bg-muted);}
.section__head{max-width:720px;margin-bottom:44px;}
.section__eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.08em;
  color:var(--accent-500);font-weight:600;margin-bottom:12px;
}
.section__head h2{font-size:38px;margin-bottom:14px;}
.section__head p{color:var(--ink-600);font-size:17px;}

/* ---------- 图文交替 ---------- */
.feature-row{
  display:grid;grid-template-columns:5fr 7fr;gap:52px;align-items:center;
}
.feature-row + .feature-row{margin-top:80px;}
.feature-row--reverse{grid-template-columns:7fr 5fr;}
.feature-row--reverse .feature-row__media{order:2;}
.feature-row__media{
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);
  background:var(--brand-100);aspect-ratio:16/11;
}
.feature-row__media img{width:100%;height:100%;object-fit:cover;}
.feature-row__body h3{font-size:26px;margin-bottom:14px;}
.feature-row__body p{color:var(--ink-600);margin-bottom:22px;}
.feature-list{display:flex;flex-direction:column;gap:14px;}
.feature-list li{display:flex;gap:12px;font-size:16px;color:var(--ink-900);}
.tick{
  flex:0 0 auto;width:22px;height:22px;margin-top:6px;border-radius:50%;
  background:var(--brand-100);display:flex;align-items:center;justify-content:center;
}
.tick svg{width:13px;height:13px;stroke:var(--brand-700);stroke-width:2.2;fill:none;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- 安全自查清单卡 ---------- */
.check-card{
  background:var(--bg-elevated);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);padding:36px;
  display:grid;grid-template-columns:1fr 1.35fr;gap:48px;align-items:center;
}
.check-card__intro h3{font-size:26px;margin-bottom:14px;}
.check-card__intro p{color:var(--ink-600);margin-bottom:20px;}
.check-card__badge{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;
  border-radius:var(--r-pill);background:var(--accent-100);color:var(--accent-500);
  font-size:13px;font-weight:600;letter-spacing:.04em;
}
.check-list{display:grid;gap:12px;}
.check-item{
  display:flex;align-items:flex-start;gap:14px;
  background:var(--bg);border:1px solid var(--line);border-radius:12px;
  padding:14px 16px;font-size:15.5px;color:var(--ink-900);
  transition:border-color .24s var(--ease),background .24s var(--ease);
}
.check-item:hover{border-color:var(--brand-600);background:#fff;}
.check-box{
  flex:0 0 auto;width:20px;height:20px;margin-top:4px;border-radius:6px;
  border:1.5px solid var(--line-strong);background:#fff;
  display:flex;align-items:center;justify-content:center;
}
.check-item.is-done .check-box{background:var(--brand-700);border-color:var(--brand-700);}
.check-item.is-done .check-box svg{stroke:#F2F6F4;}
.check-box svg{width:12px;height:12px;stroke:transparent;stroke-width:2.4;fill:none;stroke-linecap:round;stroke-linejoin:round;}
.check-item__hint{display:block;font-size:14px;color:var(--ink-400);margin-top:2px;}

/* ---------- 处理顺序三步 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.step-card{
  background:var(--bg-elevated);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);padding:28px 24px;
  transition:box-shadow .24s var(--ease),transform .24s var(--ease),border-color .24s var(--ease);
}
.step-card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);border-color:var(--brand-600);}
.step-card__num{
  font-family:var(--serif);font-size:40px;color:var(--brand-100);line-height:1;margin-bottom:14px;
}
.step-card h3{font-size:20px;margin-bottom:10px;}
.step-card p{color:var(--ink-600);font-size:15.5px;}

/* ---------- 灰色信息块 ---------- */
.info-blocks{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.info-block{
  background:var(--bg-muted);border-radius:var(--r-card);padding:26px 24px;
  border:1px solid transparent;
  transition:border-color .24s var(--ease),background .24s var(--ease);
}
.info-block:nth-child(2){padding:34px 26px;}
.info-block:hover{border-color:var(--line-strong);background:#fff;}
.info-block h4{font-family:var(--sans);font-size:17px;font-weight:700;color:var(--brand-700);margin-bottom:10px;}
.info-block p{color:var(--ink-600);font-size:15.5px;}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto;}
.faq-item{
  background:var(--bg-elevated);border-radius:var(--r-card);margin-bottom:12px;
  border:1px solid var(--line);overflow:hidden;box-shadow:var(--shadow-1);
  transition:border-color .24s var(--ease);
}
.faq-item.is-open{border-color:var(--brand-600);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 24px;text-align:left;font-size:18px;font-weight:600;color:var(--ink-900);
  font-family:var(--sans);
}
.faq-q:hover{color:var(--brand-700);}
.faq-icon{
  position:relative;flex:0 0 auto;width:20px;height:20px;
  transition:transform .32s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--accent-500);border-radius:2px;
}
.faq-icon::before{left:0;right:0;top:9px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:9px;width:2px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .32s var(--ease);
}
.faq-a__inner{
  padding:0 24px 24px 26px;border-left:2px solid var(--accent-500);
  margin-left:24px;color:var(--ink-600);font-size:16px;
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;background:var(--bg-dark);color:#F2F6F4;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.05;
  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:56px 56px;
}
.cta-band__inner{
  position:relative;z-index:2;padding:72px 0;
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.cta-band h2{color:#F6F8F6;font-size:34px;margin-bottom:12px;}
.cta-band p{color:rgba(242,246,244,.78);font-size:17px;max-width:560px;}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-dark);color:rgba(242,246,244,.8);padding:72px 0 28px;}
.footer__grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer__brand .logo__mark{background:rgba(220,232,228,.14);color:#F2F6F4;}
.footer__brand .logo__text{color:#F6F8F6;}
.footer__brand p{margin-top:16px;font-size:15px;line-height:1.8;max-width:340px;color:rgba(242,246,244,.7);}
.footer__col h4{
  font-family:var(--sans);font-size:15px;font-weight:600;color:#F2F6F4;margin-bottom:16px;
}
.footer__col li{font-size:15px;margin-bottom:10px;color:rgba(242,246,244,.72);}
.footer__col a{
  border-bottom:1px solid transparent;transition:color .24s var(--ease),border-color .24s var(--ease);
}
.footer__col a:hover{color:var(--gold-400);border-color:var(--gold-400);}
.footer__bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding-top:24px;font-size:14px;color:rgba(242,246,244,.6);
}
.footer__bottom nav{display:flex;gap:20px;flex-wrap:wrap;}
.footer__bottom a:hover{color:var(--gold-400);}

/* ---------- 入场动效 ---------- */
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .48s var(--ease),transform .48s var(--ease);}
.js .reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .page-hero h1{font-size:42px;}
  .feature-row{gap:40px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .header__main{flex-wrap:wrap;gap:14px;padding-top:12px;padding-bottom:12px;}
  .searchbar{flex:1 1 100%;max-width:none;order:3;height:44px;}
  .header__actions{display:none;}
  .nav-toggle{display:flex;margin-left:auto;}
  .subnav__inner{gap:22px;}
  .section{padding:72px 0;}
  .section__head h2{font-size:30px;}
  .page-hero__inner{padding:64px 0 58px;}
  .page-hero h1{font-size:38px;}
  .page-hero__lead{font-size:17px;}
  .feature-row,.feature-row--reverse{grid-template-columns:1fr;gap:26px;}
  .feature-row--reverse .feature-row__media{order:0;}
  .feature-row + .feature-row{margin-top:56px;}
  .check-card{grid-template-columns:1fr;gap:28px;padding:28px;}
  .steps{grid-template-columns:1fr 1fr;gap:20px;}
  .info-blocks{grid-template-columns:1fr 1fr;}
  .info-block:nth-child(2){padding:26px 24px;}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .logo__text{font-size:19px;}
  .subnav__inner{min-height:46px;gap:20px;}
  .subnav__inner a{font-size:14.5px;}
  .crumbs{padding-top:16px;font-size:13px;}
  .section{padding:56px 0;}
  .section__head{margin-bottom:32px;}
  .section__head h2{font-size:24px;}
  .page-hero__inner{padding:52px 0 48px;}
  .page-hero h1{font-size:30px;}
  .page-hero__lead{font-size:16px;}
  .page-hero__actions .btn{flex:1 1 auto;}
  .feature-row__body h3{font-size:21px;}
  .steps{grid-template-columns:1fr;}
  .info-blocks{grid-template-columns:1fr;}
  .faq-q{font-size:16.5px;padding:18px 18px;}
  .faq-a__inner{padding:0 18px 20px 18px;margin-left:18px;font-size:15.5px;}
  .cta-band__inner{padding:56px 0;flex-direction:column;align-items:flex-start;}
  .cta-band h2{font-size:26px;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{flex:1 1 auto;}
  .footer__grid{grid-template-columns:1fr;}
  .site-footer{padding:56px 0 24px;}
}
@media (max-width:479px){
  .searchbar__btn{padding:0 12px;font-size:13px;}
  .check-card{padding:22px 18px;}
  .check-item{font-size:15px;padding:12px 14px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;}
  .js .reveal{opacity:1!important;transform:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
/* ============ 设计令牌 ============ */
:root{
  --brand-700:#123C36;
  --brand-600:#1C564D;
  --brand-100:#DCE8E4;
  --accent-500:#C2683A;
  --accent-600:#A9552C;
  --accent-100:#F5E3D8;
  --gold-400:#D9A94E;
  --bg:#F6F4EF;
  --bg-elevated:#FFFFFF;
  --bg-dark:#0B2B27;
  --ink-900:#141A19;
  --ink-600:#4E5A58;
  --ink-400:#8A9492;
  --on-dark:#F2F6F4;
  --line:#E4E1D8;
  --line-strong:#CFCABC;
  --shadow-1:0 1px 2px rgba(11,43,39,.05), 0 10px 28px -18px rgba(11,43,39,.18);
  --shadow-2:0 2px 4px rgba(11,43,39,.06), 0 24px 48px -28px rgba(11,43,39,.28);
  --r-card:16px;
  --r-btn:10px;
  --r-input:12px;
  --r-badge:999px;
  --serif:"Noto Serif SC","Songti SC","STSong","SimSun",serif;
  --sans:system-ui,-apple-system,"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
  --sp:8px;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:17px;
  line-height:1.75;
  color:var(--ink-900);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand-700);text-decoration:none;transition:color 240ms var(--ease)}
a:hover{color:var(--accent-500)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;color:var(--brand-700);margin:0;line-height:1.25;letter-spacing:0}
h1{font-size:50px}
h2{font-size:38px}
h3{font-size:22px;line-height:1.4}
h4{font-size:18px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:separate;border-spacing:0}
:focus-visible{outline:2px solid var(--accent-500);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}

/* ============ 容器与板块 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section--tight{padding-top:64px}
.section--soft{background:var(--bg-elevated)}
.section__head{max-width:760px;margin-bottom:40px}
.section__head--row{max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:24px}
.section__head p{margin-top:14px;color:var(--ink-600);font-size:17px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--brand-600);
  background:var(--brand-100);border-radius:var(--r-badge);
  padding:6px 14px;margin-bottom:18px;font-weight:600;
}
.eyebrow--accent{background:var(--accent-100);color:var(--accent-600)}
.textlink{font-size:15px;font-weight:600;color:var(--brand-700);white-space:nowrap;border-bottom:1px solid transparent;transition:border-color 240ms var(--ease),color 240ms var(--ease)}
.textlink:hover{border-color:var(--accent-500);color:var(--accent-600)}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;line-height:1;
  transition:background 240ms var(--ease),color 240ms var(--ease),border-color 240ms var(--ease),transform 240ms var(--ease),box-shadow 240ms var(--ease);
}
.btn svg{transition:transform 240ms var(--ease)}
.btn--primary{background:var(--accent-500);color:#fff;box-shadow:var(--shadow-1)}
.btn--primary:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px)}
.btn--primary:hover svg{transform:translateX(4px)}
.btn--primary:active{transform:translateY(0)}
.btn--line{background:var(--bg-elevated);border:1px solid var(--line-strong);color:var(--ink-900)}
.btn--line:hover{border-color:var(--brand-600);color:var(--brand-700);background:rgba(220,232,228,.45)}
.btn--ghost{background:transparent;border:1px solid rgba(255,255,255,.4);color:#fff}
.btn--ghost:hover{background:#fff;color:var(--brand-700);border-color:#fff}
.btn--sm{height:38px;padding:0 16px;font-size:14px}
.btn--block{width:100%;justify-content:center}
.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.94);
  border-bottom:1px solid var(--line);
  transition:box-shadow 240ms var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.header__top-inner{
  display:flex;align-items:center;gap:24px;
  padding:12px 0;transition:padding 240ms var(--ease);
}
.is-scrolled .header__top-inner{padding:6px 0}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--serif);font-weight:700;font-size:22px;
  color:var(--brand-700);white-space:nowrap;flex-shrink:0;
}
.logo:hover{color:var(--brand-700)}
.logo__mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:9px;
  background:var(--brand-700);color:#fff;font-size:17px;font-family:var(--serif);
}
.search{
  position:relative;display:flex;align-items:center;
  flex:1 1 auto;max-width:520px;height:48px;margin:0 auto;
  background:var(--bg-elevated);border:1px solid var(--line);
  border-radius:var(--r-input);
  transition:border-color 240ms var(--ease),box-shadow 240ms var(--ease);
}
.search:focus-within{border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(220,232,228,.9)}
.search__icon{position:absolute;left:14px;width:18px;height:18px;stroke:var(--ink-400);fill:none;stroke-width:1.5;pointer-events:none}
.search input{
  flex:1;height:100%;border:0;background:transparent;padding:0 12px 0 42px;
  font-size:15px;outline:none;color:var(--ink-900);
}
.search input::placeholder{color:var(--ink-400)}
.search__btn{
  height:34px;margin-right:7px;padding:0 16px;border-radius:8px;
  background:var(--brand-700);color:#fff;font-size:14px;font-weight:600;
  transition:background 240ms var(--ease);
}
.search__btn:hover{background:var(--brand-600)}
.header__actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line-strong);background:var(--bg-elevated);
  align-items:center;justify-content:center;flex-shrink:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-700);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-700);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.subnav{border-top:1px solid var(--line)}
.subnav__inner{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none}
.subnav__inner::-webkit-scrollbar{display:none}
.subnav__inner a{
  position:relative;display:block;padding:15px 16px;
  font-size:15px;font-weight:500;color:var(--ink-600);white-space:nowrap;
  transition:color 240ms var(--ease);
}
.subnav__inner a::after{
  content:"";position:absolute;left:16px;right:16px;bottom:10px;height:2px;
  background:var(--accent-500);transform:scaleX(0);transform-origin:left;
  transition:transform 240ms var(--ease);
}
.subnav__inner a:hover{color:var(--brand-700)}
.subnav__inner a:hover::after{transform:scaleX(1)}
.subnav__inner a.is-active{color:var(--brand-700);font-weight:600}
.subnav__inner a.is-active::after{transform:scaleX(1)}

/* 移动端抽屉 */
.backdrop{
  position:fixed;inset:0;background:rgba(11,43,39,.45);
  opacity:0;visibility:hidden;transition:opacity 240ms var(--ease),visibility 240ms var(--ease);z-index:70;
}
.backdrop.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:320px;max-width:86vw;z-index:80;
  background:var(--bg-elevated);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform 320ms var(--ease);
  padding:20px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer__close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line-strong);font-size:20px;line-height:1;color:var(--brand-700)}
.drawer__nav{display:flex;flex-direction:column;gap:2px;margin:20px 0}
.drawer__nav a{padding:12px 14px;border-radius:10px;font-size:16px;font-weight:500;color:var(--ink-600)}
.drawer__nav a:hover{background:var(--bg);color:var(--brand-700)}
.drawer__nav a.is-active{background:var(--brand-100);color:var(--brand-700);font-weight:600}
.drawer .search{max-width:none;margin:0 0 4px}

/* ============ Hero ============ */
.hero{position:relative;padding:72px 0 80px;overflow:hidden}
.hero::before{
  content:"";position:absolute;top:-120px;left:-120px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(18,60,54,.06);box-shadow:0 0 0 60px rgba(18,60,54,.028),0 0 0 130px rgba(18,60,54,.02);
  pointer-events:none;
}
.hero__grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{margin-bottom:20px}
.hero__lead{font-size:19px;color:var(--ink-600);max-width:520px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero__stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  margin-top:44px;padding-top:28px;border-top:1px solid var(--line);
}
.stat__num{font-family:var(--serif);font-size:44px;font-weight:700;color:var(--brand-700);line-height:1.1}
.stat__label{font-size:14px;color:var(--ink-600);margin-top:6px}
.hero__media{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-2)}
.hero__media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(11,43,39,.05),rgba(11,43,39,.42));
}
.hero__badge{
  position:absolute;left:20px;bottom:20px;z-index:2;
  background:rgba(255,255,255,.94);color:var(--brand-700);
  border-radius:var(--r-badge);padding:8px 16px;font-size:14px;font-weight:600;
}

/* ============ 信任条 ============ */
.trust{background:var(--bg-elevated);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:28px 0}
.trust__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.trust__item{display:flex;align-items:center;gap:12px;font-size:15px;color:var(--ink-600)}
.trust__item svg{width:22px;height:22px;stroke:var(--brand-600);fill:none;stroke-width:1.6;flex-shrink:0}
.trust__item strong{display:block;font-size:16px;color:var(--ink-900);font-weight:600}

/* ============ 权益对照表 ============ */
.plan-wrap{overflow-x:auto;padding-bottom:8px;-webkit-overflow-scrolling:touch}
.plan-table{width:100%;min-width:760px;font-size:16px}
.plan-table caption{text-align:left;font-size:14px;color:var(--ink-400);padding-bottom:12px}
.plan-table th,.plan-table td{padding:18px 20px;text-align:left;border-bottom:1px solid var(--line);background:var(--bg-elevated);vertical-align:middle}
.plan-table thead th{
  background:var(--bg-dark);color:var(--on-dark);font-family:var(--sans);
  font-weight:600;font-size:16px;border-bottom:0;white-space:nowrap;
}
.plan-table thead th:first-child{border-radius:12px 0 0 0}
.plan-table thead th:last-child{border-radius:0 12px 0 0}
.plan-table tbody th{font-weight:600;color:var(--ink-900);font-family:var(--sans);white-space:nowrap}
.plan-table tbody tr:hover td:not(.is-featured),.plan-table tbody tr:hover th{background:var(--bg)}
.plan-table .is-featured{background:var(--brand-100)}
.plan-table thead th.is-featured{
  background:var(--brand-700);border-top:3px solid var(--accent-500);
  border-radius:12px 12px 0 0;
}
.plan-table tbody tr:last-child td.is-featured{border-radius:0 0 12px 12px}
.plan-tag{
  display:inline-block;background:var(--accent-100);color:var(--accent-600);
  border-radius:var(--r-badge);padding:2px 10px;font-size:12px;font-weight:600;margin-right:8px;
  vertical-align:middle;
}
.crown{display:inline-flex;vertical-align:-2px;margin-left:6px}
.crown svg{width:16px;height:16px;stroke:var(--gold-400);fill:none;stroke-width:1.6}
.tick{width:20px;height:20px;stroke:var(--brand-600);fill:none;stroke-width:2}
.dash{color:var(--ink-400)}
.plan-note{margin-top:20px;font-size:14px;color:var(--ink-600)}

/* ============ 等级亮点双卡 ============ */
.levels{display:grid;grid-template-columns:1fr 1.35fr;gap:24px;align-items:start}
.level-card{
  background:var(--bg-elevated);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--shadow-1);
  transition:box-shadow 240ms var(--ease),transform 240ms var(--ease),border-color 240ms var(--ease);
}
.level-card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);border-color:var(--brand-600)}
.level-card--gold{border-color:var(--gold-400);position:relative;padding:32px}
.level-card__top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.level-card h3{margin-bottom:10px}
.level-card__desc{font-size:16px;color:var(--ink-600);margin-bottom:20px}
.checklist{display:flex;flex-direction:column;gap:12px;margin-bottom:24px}
.checklist li{display:flex;gap:10px;font-size:16px;color:var(--ink-600)}
.checklist svg{width:18px;height:18px;stroke:var(--brand-600);fill:none;stroke-width:2.2;flex-shrink:0;margin-top:5px}
.price-line{font-size:14px;color:var(--ink-400);margin-bottom:16px}

/* ============ 适用场景 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split__media{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1)}
.split__media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.scene-list{display:flex;flex-direction:column;gap:20px;margin-top:26px}
.scene-list li{display:flex;gap:16px}
.scene-list .num{
  font-family:var(--serif);font-size:20px;font-weight:700;color:var(--accent-500);
  width:34px;height:34px;border-radius:50%;background:var(--accent-100);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.scene-list strong{display:block;font-size:17px;color:var(--ink-900);margin-bottom:4px}
.scene-list p{font-size:15px;color:var(--ink-600)}

/* ============ 深色说明条 ============ */
.note-bar{
  background:var(--bg-dark);color:var(--on-dark);border-radius:var(--r-card);
  padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  position:relative;overflow:hidden;
}
.note-bar::before{
  content:"";position:absolute;inset:0;opacity:.05;
  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:32px 32px;
}
.note-bar__text{position:relative;max-width:640px}
.note-bar h2{color:#fff;font-size:28px;margin-bottom:10px}
.note-bar p{color:rgba(242,246,244,.82);font-size:16px}
.note-bar__actions{position:relative;flex-shrink:0}

/* ============ FAQ ============ */
.faq{max-width:900px;margin:0 auto}
.faq-item{background:var(--bg-elevated);border:0;border-bottom:1px solid var(--line);border-radius:0}
.faq-item:first-child{border-radius:var(--r-card) var(--r-card) 0 0}
.faq-item:last-child{border-radius:0 0 var(--r-card) var(--r-card);border-bottom:0}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  width:100%;padding:22px 24px;text-align:left;
  font-size:18px;font-weight:600;color:var(--ink-900);
  transition:color 240ms var(--ease),background 240ms var(--ease);
  position:relative;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:2px;background:var(--accent-500);
  transform:scaleY(0);transform-origin:top;transition:transform 320ms var(--ease);
}
.faq-q:hover{color:var(--brand-700);background:rgba(220,232,228,.25)}
.faq-icon{position:relative;width:20px;height:20px;flex-shrink:0}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-700);transition:transform 320ms var(--ease)}
.faq-icon::before{top:9px;left:0;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0)}
.faq-item.is-open .faq-q::before{transform:scaleY(1)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 320ms var(--ease)}
.faq-a p{padding:0 24px 24px;font-size:16px;color:var(--ink-600)}

/* ============ CTA 与表单 ============ */
.cta-card{
  background:var(--bg-elevated);border:1px solid var(--line-strong);border-radius:var(--r-card);
  padding:44px;display:grid;grid-template-columns:1fr 1fr;gap:48px;box-shadow:var(--shadow-1);
}
.cta-card h2{font-size:30px;margin-bottom:12px}
.cta-card__lead{color:var(--ink-600);font-size:16px;margin-bottom:22px}
.cta-points{display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;gap:10px;font-size:15px;color:var(--ink-600)}
.cta-points svg{width:18px;height:18px;stroke:var(--accent-500);fill:none;stroke-width:2.2;flex-shrink:0;margin-top:5px}
.form-field{margin-bottom:18px}
.form-field label{display:block;font-size:14px;color:var(--ink-600);margin-bottom:8px}
.form-field input,.form-field select{
  width:100%;height:48px;padding:0 14px;background:var(--bg-elevated);
  border:1px solid var(--line);border-radius:var(--r-input);font-size:16px;
  transition:border-color 240ms var(--ease),box-shadow 240ms var(--ease);
}
.form-field input:focus,.form-field select:focus{outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(220,232,228,.9)}
.form-note{font-size:13px;color:var(--ink-400);margin-top:14px;line-height:1.6}
.form-msg{font-size:14px;color:var(--brand-600);margin-top:12px;display:none}
.form-msg.is-visible{display:block}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-dark);color:var(--on-dark);padding:72px 0 28px;margin-top:0}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer__brand .logo{color:#fff;margin-bottom:16px}
.footer__brand .logo__mark{background:#fff;color:var(--brand-700)}
.footer__brand p{font-size:15px;color:rgba(242,246,244,.72);max-width:360px}
.footer__col h4{font-size:15px;color:#fff;margin-bottom:16px;font-family:var(--sans);font-weight:600}
.footer__col ul{display:flex;flex-direction:column;gap:10px}
.footer__col li{font-size:15px;color:rgba(242,246,244,.72)}
.footer__col a{color:rgba(242,246,244,.72);border-bottom:1px solid transparent;transition:color 240ms var(--ease),border-color 240ms var(--ease)}
.footer__col a:hover{color:var(--gold-400);border-color:var(--gold-400)}
.footer__bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:14px;color:rgba(242,246,244,.6);
}
.footer__bottom nav{display:flex;gap:20px;flex-wrap:wrap}
.footer__bottom a{color:rgba(242,246,244,.6)}
.footer__bottom a:hover{color:var(--gold-400)}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity 480ms var(--ease),transform 480ms var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 28px}
  h1{font-size:42px}
  h2{font-size:32px}
  .hero__grid{gap:40px}
  .split{gap:40px}
}
@media (max-width:1023px){
  body{font-size:16px}
  .container{padding:0 24px}
  h1{font-size:38px}
  h2{font-size:30px}
  h3{font-size:20px}
  .section{padding:72px 0}
  .header__top-inner{flex-wrap:wrap;gap:12px}
  .header__actions .btn--ghost-line{display:none}
  .nav-toggle{display:inline-flex;order:2;margin-left:auto}
  .logo{order:1}
  .search{order:3;flex:1 0 100%;max-width:none;height:44px;margin:0}
  .header__actions{order:2}
  .header__actions .btn--primary{height:42px;padding:0 16px;font-size:15px}
  .hero{padding:56px 0 64px}
  .hero__grid{grid-template-columns:1fr;gap:36px}
  .hero__media{order:-1}
  .hero__media img{aspect-ratio:16/9}
  .levels{grid-template-columns:1fr}
  .split{grid-template-columns:1fr;gap:36px}
  .trust__grid{grid-template-columns:repeat(2,1fr);gap:18px}
  .cta-card{grid-template-columns:1fr;gap:32px;padding:32px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
  .note-bar{flex-direction:column;align-items:flex-start;padding:32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  h1{font-size:30px}
  h2{font-size:24px}
  h3{font-size:18px}
  .section{padding:56px 0}
  .section__head--row{flex-direction:column;align-items:flex-start;gap:14px}
  .hero__stats{grid-template-columns:1fr;gap:18px}
  .stat__num{font-size:34px}
  .level-card{padding:22px}
  .level-card--gold{padding:24px}
  .faq-q{padding:18px;font-size:16px}
  .faq-a p{padding:0 18px 20px}
  .cta-card{padding:24px}
  .footer__grid{grid-template-columns:1fr;gap:28px}
  .footer__bottom{flex-direction:column;align-items:flex-start;gap:12px}
  .plan-table th,.plan-table td{padding:14px 16px;font-size:15px}
  .plan-table th:first-child,.plan-table td:first-child{position:sticky;left:0;z-index:2;background:var(--bg-elevated);border-right:1px solid var(--line)}
  .plan-table tbody tr:hover th:first-child{background:var(--bg)}
}
@media (max-width:519px){
  .hero__actions .btn{width:100%;justify-content:center}
  .trust__grid{grid-template-columns:1fr}
  .scene-list li{gap:12px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category4 */
:root{
  --brand-700:#123C36;
  --brand-600:#1C564D;
  --brand-100:#DCE8E4;
  --accent-500:#C2683A;
  --accent-600:#A9552C;
  --accent-100:#F5E3D8;
  --gold-400:#D9A94E;
  --bg:#F6F4EF;
  --bg-elevated:#FFFFFF;
  --bg-dark:#0B2B27;
  --ink-900:#141A19;
  --ink-600:#4E5A58;
  --ink-400:#8A9492;
  --line:#E4E1D8;
  --line-strong:#CFCABC;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-input:12px;
  --shadow-1:0 1px 2px rgba(11,43,39,.05),0 10px 28px -18px rgba(11,43,39,.18);
  --shadow-2:0 2px 4px rgba(11,43,39,.06),0 24px 48px -28px rgba(11,43,39,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --serif:"Noto Serif SC","Songti SC","STSong","SimSun",serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:system-ui,-apple-system,"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;color:inherit}
input{font:inherit}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:600;line-height:1.3}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);
  border:1px solid transparent;font-size:16px;font-weight:600;
  transition:background 240ms var(--ease),color 240ms var(--ease),border-color 240ms var(--ease),transform 240ms var(--ease),box-shadow 240ms var(--ease);
  white-space:nowrap;
}
.btn--primary{background:var(--accent-500);color:#fff;box-shadow:var(--shadow-1)}
.btn--primary:hover{background:var(--accent-600);transform:translateY(-1px)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:#fff;border-color:var(--line-strong);color:var(--ink-900)}
.btn--ghost:hover{border-color:var(--brand-600);color:var(--brand-700);background:rgba(220,232,228,.35)}
.btn--sm{height:42px;padding:0 16px;font-size:15px}
.btn__arrow{transition:transform 240ms var(--ease)}
.btn:hover .btn__arrow{transform:translateX(4px)}

/* ============ 页头 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,244,239,.94);
  border-bottom:1px solid var(--line);
}
.header__main{display:flex;align-items:center;gap:20px;padding:14px 0}
.logo{display:inline-flex;align-items:center;gap:10px;font-family:var(--serif);font-weight:700;font-size:22px;color:var(--brand-700);letter-spacing:0}
.logo__mark{
  width:34px;height:34px;border-radius:10px;background:var(--brand-700);color:#fff;
  display:grid;place-items:center;font-size:17px;font-family:var(--serif);flex:none;
}
.header__search{flex:1 1 auto;max-width:520px}
.header__actions{display:flex;align-items:center;gap:10px;margin-left:auto}

.search{
  display:flex;align-items:center;gap:8px;height:48px;padding:0 6px 0 14px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-input);
  transition:border-color 240ms var(--ease),box-shadow 240ms var(--ease);
}
.search__icon{width:20px;height:20px;flex:none;color:var(--ink-400)}
.search input{
  flex:1 1 auto;min-width:0;height:100%;border:0;background:none;outline:none;
  font-size:15px;color:var(--ink-900);
}
.search input::placeholder{color:var(--ink-400)}
.search__btn{
  flex:none;height:36px;padding:0 16px;border:0;border-radius:8px;
  background:var(--brand-700);color:#fff;font-size:14px;font-weight:600;
  transition:background 240ms var(--ease);
}
.search__btn:hover{background:var(--brand-600)}
.search:focus-within{border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(220,232,228,.85)}

.menu-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line-strong);border-radius:10px;
  background:#fff;place-items:center;gap:4px;padding:0;flex-direction:column;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--brand-700);border-radius:2px}

.subnav{overflow:hidden}
.subnav__inner{display:flex;gap:28px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.subnav__inner::-webkit-scrollbar{display:none}
.subnav__inner a{
  position:relative;padding:14px 0 16px;font-size:15px;color:var(--ink-600);
  white-space:nowrap;transition:color 240ms var(--ease);
}
.subnav__inner a::after{
  content:"";position:absolute;left:0;bottom:8px;height:2px;width:0;
  background:var(--accent-500);transition:width 240ms var(--ease);
}
.subnav__inner a:hover{color:var(--brand-700)}
.subnav__inner a:hover::after{width:100%}
.subnav__inner a.is-active{color:var(--brand-700);font-weight:600}
.subnav__inner a.is-active::after{width:100%}

/* ============ 抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,43,39,.42);z-index:90;
  opacity:0;visibility:hidden;transition:opacity 240ms var(--ease),visibility 240ms var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;z-index:100;height:100%;width:min(86vw,340px);
  background:#fff;padding:22px;display:flex;flex-direction:column;gap:18px;
  transform:translateX(105%);transition:transform 320ms var(--ease);
  box-shadow:var(--shadow-2);overflow-y:auto;
}
.drawer.is-open{transform:none}
.drawer__head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer__close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  background:#fff;font-size:20px;line-height:1;color:var(--ink-600);
}
.drawer__close:hover{border-color:var(--brand-600);color:var(--brand-700)}
.drawer__nav{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.drawer__nav a{padding:14px 2px;border-bottom:1px solid var(--line);font-size:16px;color:var(--ink-600)}
.drawer__nav a.is-active{color:var(--brand-700);font-weight:600}
.drawer .btn{width:100%}

/* ============ 首屏 ============ */
.page-hero{position:relative;padding:48px 0 40px;overflow:hidden}
.page-hero::before,
.page-hero::after{
  content:"";position:absolute;border-radius:50%;pointer-events:none;
  border:1px solid rgba(18,60,54,.06);
}
.page-hero::before{width:420px;height:420px;right:-120px;top:-140px}
.page-hero::after{width:280px;height:280px;right:20px;top:-40px;background:rgba(18,60,54,.03)}
.page-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--ink-400);margin-bottom:18px}
.breadcrumb a:hover{color:var(--brand-700)}
.breadcrumb span{color:var(--ink-600)}
.page-hero h1{font-size:40px;color:var(--brand-700);max-width:800px}
.page-hero__sub{margin-top:14px;font-size:18px;color:var(--ink-600);max-width:640px;line-height:1.7}
.page-hero__search{max-width:640px;margin-top:28px;height:52px;box-shadow:var(--shadow-1)}

.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.chip{
  padding:8px 16px;border-radius:999px;border:1px solid var(--line-strong);
  background:#fff;font-size:14px;color:var(--ink-600);
  transition:border-color 240ms var(--ease),color 240ms var(--ease),background 240ms var(--ease);
}
.chip:hover{border-color:var(--brand-600);color:var(--brand-700)}
.chip.is-active{background:var(--brand-100);border-color:var(--brand-600);color:var(--brand-700);font-weight:600}

/* ============ FAQ 区 ============ */
.section{padding:40px 0 72px}
.section--tight{padding:0 0 64px}
.faq-layout{display:grid;grid-template-columns:minmax(0,1fr) 336px;gap:32px;align-items:start}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px;flex-wrap:wrap}
.section-head h2{font-size:30px;color:var(--brand-700)}
.section-head p{margin-top:8px;font-size:16px;color:var(--ink-600)}
.section-head .link{font-size:15px;color:var(--brand-600);font-weight:600;transition:color 240ms var(--ease)}
.section-head .link:hover{color:var(--accent-500)}

.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:border-color 240ms var(--ease),box-shadow 240ms var(--ease);
}
.faq-item[hidden]{display:none}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item.is-open{border-color:var(--brand-600);box-shadow:var(--shadow-2)}
.faq-item__q{
  position:relative;display:flex;width:100%;align-items:flex-start;justify-content:space-between;
  gap:16px;padding:20px 22px;background:none;border:0;text-align:left;
  font-size:18px;font-weight:600;line-height:1.6;color:var(--ink-900);
}
.faq-item__q::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:2px;
  background:var(--accent-500);opacity:0;transition:opacity 240ms var(--ease);
}
.faq-item.is-open .faq-item__q::before{opacity:1}
.faq-item__icon{
  position:relative;flex:none;width:24px;height:24px;margin-top:3px;
  transition:transform 320ms var(--ease);
}
.faq-item__icon::before,
.faq-item__icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand-700);
  transform:translate(-50%,-50%);
}
.faq-item__icon::before{width:14px;height:2px}
.faq-item__icon::after{width:2px;height:14px}
.faq-item.is-open .faq-item__icon{transform:rotate(45deg)}
.faq-item__a{max-height:0;overflow:hidden;transition:max-height 320ms var(--ease)}
.faq-item.is-open .faq-item__a{max-height:640px}
.faq-item__a p{padding:0 22px 24px;font-size:16px;line-height:1.85;color:var(--ink-600)}
.faq-tag{
  display:inline-block;margin-right:10px;padding:2px 10px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-700);font-size:13px;font-weight:600;vertical-align:middle;
}
.faq-empty{
  padding:36px 24px;text-align:center;border:1px dashed var(--line-strong);
  border-radius:var(--radius-card);background:#fff;
}
.faq-empty p{color:var(--ink-600);font-size:16px;margin-top:10px}
.faq-empty svg{width:34px;height:34px;color:var(--ink-400);margin:0 auto}

/* ============ 侧栏 ============ */
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
}
.side-card + .side-card{margin-top:20px}
.side-card h3{font-size:20px;color:var(--brand-700)}
.side-card__note{margin-top:6px;font-size:14px;color:var(--ink-400)}
.hot-list{margin-top:14px;display:flex;flex-direction:column}
.hot-list a{
  display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);
  font-size:15px;color:var(--ink-600);line-height:1.6;
  transition:color 240ms var(--ease);
}
.hot-list li:last-child a{border-bottom:0;padding-bottom:2px}
.hot-list a:hover{color:var(--brand-700)}
.hot-list .num{font-family:var(--serif);font-weight:700;color:var(--accent-500);flex:none}
.side-cover{border-radius:14px;overflow:hidden;border:1px solid var(--line)}
.side-cover img{width:100%;aspect-ratio:16/10;object-fit:cover}
.side-cover__body{padding:16px;background:#fff}
.side-cover__body p{font-size:14px;color:var(--ink-600);line-height:1.7}
.side-cover__body a{display:inline-flex;align-items:center;gap:6px;margin-top:10px;font-size:14px;font-weight:600;color:var(--brand-600)}
.side-cover__body a:hover{color:var(--accent-500)}
.hours-list{margin-top:14px;display:flex;flex-direction:column;gap:10px}
.hours-list li{
  display:flex;justify-content:space-between;gap:12px;font-size:14px;color:var(--ink-600);
  padding-bottom:10px;border-bottom:1px dashed var(--line);
}
.hours-list li:last-child{border-bottom:0;padding-bottom:0}
.hours-list b{color:var(--brand-700);font-weight:600}

/* ============ 支持通道 ============ */
.support-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.support-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-1);
  transition:transform 240ms var(--ease),box-shadow 240ms var(--ease),border-color 240ms var(--ease);
}
.support-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--brand-600)}
.support-card__icon{
  width:44px;height:44px;border-radius:12px;background:var(--brand-100);color:var(--brand-700);
  display:grid;place-items:center;margin-bottom:16px;
}
.support-card__icon svg{width:22px;height:22px}
.support-card h3{font-size:20px}
.support-card p{margin-top:10px;font-size:15px;color:var(--ink-600);line-height:1.8}
.support-card a{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:15px;font-weight:600;color:var(--brand-600)}
.support-card a:hover{color:var(--accent-500)}
.support-card a span{transition:transform 240ms var(--ease)}
.support-card a:hover span{transform:translateX(4px)}

/* ============ 浅色 CTA ============ */
.cta-outline{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  background:#fff;border:1px solid var(--line-strong);border-radius:20px;
  padding:38px 40px;box-shadow:var(--shadow-1);
}
.cta-outline h2{font-size:28px;color:var(--brand-700)}
.cta-outline p{margin-top:10px;font-size:16px;color:var(--ink-600);max-width:620px;line-height:1.75}
.cta-outline__actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-dark);color:#F2F6F4;padding:64px 0 0;margin-top:24px}
.footer__grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
.footer__brand .logo{color:#fff}
.footer__brand .logo__mark{background:#fff;color:var(--brand-700)}
.footer__brand p{margin-top:16px;max-width:340px;font-size:15px;line-height:1.8;color:rgba(242,246,244,.72)}
.footer__col h4{font-family:inherit;font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer__col ul{display:flex;flex-direction:column;gap:10px}
.footer__col li{font-size:14px;color:rgba(242,246,244,.72);line-height:1.7}
.footer__col a{color:rgba(242,246,244,.72);transition:color 240ms var(--ease)}
.footer__col a:hover{color:var(--gold-400)}
.footer__bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.12);
  font-size:14px;color:rgba(242,246,244,.6);
}
.footer__bottom nav{display:flex;gap:20px}
.footer__bottom a{transition:color 240ms var(--ease)}
.footer__bottom a:hover{color:var(--gold-400)}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity 480ms var(--ease),transform 480ms var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

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

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .faq-layout{grid-template-columns:minmax(0,1fr) 300px;gap:24px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .page-hero h1{font-size:34px}
  .page-hero__sub{font-size:17px}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .support-grid{grid-template-columns:1fr 1fr;gap:20px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-outline{padding:30px}
  .section{padding:32px 0 60px}
}
@media (max-width:900px){
  .header__main{flex-wrap:wrap;row-gap:12px;padding:12px 0}
  .header__search{order:3;flex:1 0 100%;max-width:none}
  .header__search .search{height:44px}
  .menu-toggle{display:flex}
  .header__actions{margin-left:auto}
  .header__actions .btn--ghost{display:none}
}
@media (max-width:767px){
  .page-hero{padding:32px 0 28px}
  .page-hero h1{font-size:28px}
  .page-hero__search{height:48px}
  .section{padding:24px 0 48px}
  .section-head h2{font-size:24px}
  .faq-item__q{font-size:16.5px;padding:18px}
  .faq-item__a p{padding:0 18px 20px;font-size:15.5px}
  .support-grid{grid-template-columns:1fr}
  .cta-outline{padding:24px;border-radius:16px}
  .cta-outline h2{font-size:23px}
  .cta-outline__actions{width:100%}
  .cta-outline__actions .btn{flex:1 1 auto}
  .site-footer{padding-top:48px}
  .footer__grid{grid-template-columns:1fr;gap:24px;padding-bottom:28px}
  .footer__bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .page-hero h1{font-size:25px}
  .page-hero__sub{font-size:16px}
  .logo{font-size:19px}
  .logo__mark{width:30px;height:30px;border-radius:9px;font-size:15px}
  .side-card{padding:20px}
  .search{padding-left:12px}
  .search__btn{padding:0 12px}
}