/* roulang page: index */
:root{
  --main:#1E5B54;
  --main-dark:#123B37;
  --accent:#D9884A;
  --jade:#6C9E92;
  --bg:#F7F4EE;
  --bg-soft:#EFF2EE;
  --bg-warm:#F1ECE2;
  --card:#FFFFFF;
  --text:#17211F;
  --text-2:#5D6B67;
  --text-3:#8A958F;
  --border:#E4DED2;
  --line:#EDE7DC;
  --ok:#2E7D5B;
  --warn:#C4762E;
  --r-lg:20px;
  --r:16px;
  --r-sm:10px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(23,33,31,.05),0 8px 24px rgba(23,33,31,.06);
  --sh2:0 6px 14px rgba(23,33,31,.10),0 18px 40px rgba(23,33,31,.10);
  --t:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:17px;line-height:1.9;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0 0 12px;font-weight:700;color:var(--text);letter-spacing:.01em;line-height:1.35}
h1{font-size:40px;line-height:1.25}
h2{font-size:30px}
h3{font-size:22px;font-weight:600;line-height:1.5}
h4{font-size:18px;font-weight:600;line-height:1.6}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
a{color:var(--main);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--main-dark)}
img{max-width:100%;height:auto;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:16px;color:var(--text)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:96px 0}
.section.is-white{background:#fff}
.section.is-soft{background:var(--bg-soft)}
.section.is-warm{background:var(--bg-warm)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head p{font-size:17px;color:var(--text-2);margin:0}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:.16em;color:var(--jade);margin-bottom:12px;text-transform:uppercase}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.section-head--row .sh-text{max-width:680px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:var(--r-sm);
  font-size:16px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-primary{background:var(--main);color:#fff}
.btn-primary:hover{background:var(--main-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh1)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;border-color:var(--border);color:var(--main-dark)}
.btn-ghost:hover{border-color:var(--main);background:var(--bg-soft);color:var(--main-dark)}
.btn-sm{min-height:40px;padding:0 18px;font-size:15px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;padding:16px 0 0;background:linear-gradient(180deg,rgba(247,244,238,.97) 55%,rgba(247,244,238,0));transition:padding var(--t)}
.site-header.is-stuck{padding-top:8px}
.nav-panel{
  display:flex;align-items:center;gap:20px;
  background:#fff;border:1px solid var(--border);border-radius:var(--r);
  box-shadow:var(--sh1);padding:12px 16px;
  transition:box-shadow var(--t),padding var(--t);
}
.site-header.is-stuck .nav-panel{box-shadow:var(--sh2);padding:8px 16px}
.brand{display:flex;align-items:center;gap:12px;min-height:44px}
.brand-mark{width:40px;height:40px;flex:none;border-radius:12px;background:var(--main);display:flex;align-items:center;justify-content:center;box-shadow:inset 0 1px 0 rgba(255,255,255,.18)}
.brand-mark svg{width:22px;height:22px;stroke:#fff;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:17px;font-weight:700;color:var(--main-dark);letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:12px;color:var(--text-3);letter-spacing:.04em}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-card{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  min-height:52px;min-width:88px;padding:8px 12px;border-radius:var(--r-sm);
  font-size:13px;line-height:1.3;color:var(--text-2);
  transition:background var(--t),color var(--t),box-shadow var(--t);
}
.nav-card svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.nav-card:hover{background:var(--bg-soft);color:var(--main)}
.nav-card.is-active{background:#E6EFEC;color:var(--main);box-shadow:inset 0 -2px 0 var(--main)}
.nav-cta{margin-left:8px;flex:none}
.drawer-cta{display:none}
.nav-toggle{
  display:none;width:44px;height:44px;flex:none;align-items:center;justify-content:center;
  flex-direction:column;gap:5px;background:var(--bg-soft);border:1px solid var(--border);
  border-radius:var(--r-sm);margin-left:auto;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--main-dark);border-radius:2px;transition:transform var(--t),opacity var(--t)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

/* ---------- Hero ---------- */
.live-hero{padding:40px 0 48px}
.live-grid{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center}
.live-cover{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh1);aspect-ratio:16/9;background:var(--main-dark)}
.live-cover img{width:100%;height:100%;object-fit:cover}
.cover-layer{position:absolute;inset:0;background:rgba(18,59,55,.35);z-index:1}
.cover-status{position:absolute;left:16px;top:16px;z-index:3}
.play-btn{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:3;
  width:72px;height:72px;border-radius:50%;border:1.5px solid rgba(255,255,255,.9);
  background:rgba(255,255,255,.14);display:flex;align-items:center;justify-content:center;
  transition:transform var(--t),background var(--t);
}
.play-btn svg{width:24px;height:24px;fill:#fff;stroke:none;margin-left:3px}
.play-btn:hover{transform:translate(-50%,-50%) scale(1.06);background:rgba(255,255,255,.26)}
.cover-meta{
  position:absolute;left:0;right:0;bottom:0;z-index:3;padding:14px 18px;
  background:linear-gradient(180deg,rgba(18,59,55,0) 0%,rgba(18,59,55,.72) 100%);
  color:rgba(255,255,255,.92);font-size:14px;line-height:1.6;
}
.live-copy h1{margin-bottom:16px}
.live-copy .lead{font-size:18px;line-height:1.85;color:var(--text-2);max-width:34em;margin-bottom:18px}
.live-time{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;color:var(--main-dark);
  background:#E6EFEC;border-radius:var(--r-pill);padding:6px 16px;margin-bottom:24px;
}
.live-time svg{width:18px;height:18px;stroke:var(--main);fill:none;stroke-width:1.5}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:24px}
.trust-list{display:flex;flex-wrap:wrap;gap:18px}
.trust-list li{display:flex;align-items:center;gap:6px;font-size:14px;color:var(--text-2)}
.trust-list svg{width:18px;height:18px;stroke:var(--jade);fill:none;stroke-width:1.5;flex:none}

/* ---------- 倒计时 ---------- */
.countdown-wrap{padding:0 0 72px}
.countdown-card{
  display:flex;align-items:center;gap:24px;flex-wrap:wrap;
  background:#fff;border:1px solid var(--border);border-radius:var(--r);
  box-shadow:var(--sh1);padding:20px 24px;
}
.cd-label{font-size:15px;color:var(--text-2);white-space:nowrap;display:flex;align-items:center;gap:8px}
.cd-label svg{width:18px;height:18px;stroke:var(--accent);fill:none;stroke-width:1.5}
.cd-digits{display:flex;gap:16px;margin:0 auto}
.cd-unit{text-align:center;min-width:64px}
.cd-unit b{display:block;font-size:40px;line-height:1.15;color:var(--accent);font-variant-numeric:tabular-nums;font-feature-settings:"tnum";font-weight:700}
.cd-unit span{display:block;font-size:13px;color:var(--text-2)}
.countdown-card.is-ended{border-color:#E6EFEC;background:#F4F8F6}
.countdown-card.is-ended .cd-label{color:var(--main)}
.countdown-card.is-ended .cd-label svg{stroke:var(--main)}

/* ---------- 看点 ---------- */
.highlights{padding:72px 0 88px;background:#fff;border-top:1px solid var(--line)}
.hl-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.hl-item{border-top:2px solid var(--line);padding-top:20px;transition:border-color var(--t)}
.hl-item:hover{border-color:var(--accent)}
.hl-item .num{font-size:15px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:.1em}
.hl-icon{color:var(--main);margin:10px 0 10px}
.hl-icon svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.hl-item h3{font-size:18px;margin-bottom:8px}
.hl-item p{font-size:15px;line-height:1.8;color:var(--text-2);margin:0}

/* ---------- 订阅 ---------- */
.sub-panel{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;
  background:#fff;border:1px solid var(--border);border-radius:var(--r);
  box-shadow:var(--sh1);padding:40px;
}
.sub-copy h2{margin-bottom:12px}
.sub-copy p{font-size:16px;color:var(--text-2);line-height:1.85}
.sub-privacy{font-size:14px;color:var(--text-3);line-height:1.75;margin:0}
.sub-form .field{margin-bottom:20px}
.sub-form label{display:block;font-size:14px;font-weight:600;color:var(--text-2);margin-bottom:8px}
.sub-form input[type="text"]{
  width:100%;height:48px;border:1px solid var(--border);border-radius:var(--r-sm);
  padding:0 16px;background:#fff;transition:border-color var(--t),box-shadow var(--t);
}
.sub-form input[type="text"]:focus{border-color:var(--main);box-shadow:0 0 0 2px rgba(217,136,74,.35);outline:none}
.sub-form input[type="text"].is-error{border-color:var(--warn);box-shadow:0 0 0 2px rgba(196,118,46,.18)}
.field-note,.field-error,.field-success{font-size:14px;line-height:1.7;margin:8px 0 0}
.field-error{color:var(--warn)}
.field-success{color:var(--ok)}
.chip-row{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 16px;
  border:1px solid var(--border);border-radius:var(--r-pill);background:#fff;
  font-size:14px;color:var(--text-2);cursor:pointer;transition:all var(--t);
}
.chip:hover{border-color:var(--jade)}
.chip input[type="checkbox"]{accent-color:#1E5B54;width:16px;height:16px;margin:0}
.chip.is-on{border-color:var(--main);background:#E6EFEC;color:var(--main);font-weight:600}
.sub-form .btn{margin-top:8px}
.sub-form.is-done .field,.sub-form.is-done .btn{opacity:.55;pointer-events:none}
.form-success-bar{
  display:flex;align-items:center;gap:10px;padding:12px 16px;margin-bottom:16px;
  background:#EAF4EF;border:1px solid #CBE4D7;border-radius:var(--r-sm);
  color:var(--ok);font-size:14px;line-height:1.7;
}
.form-success-bar svg{width:18px;height:18px;stroke:var(--ok);fill:none;stroke-width:1.5;flex:none}

/* ---------- 通用卡片 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);
  border-radius:var(--r);box-shadow:var(--sh1);overflow:hidden;
  transition:transform var(--t),box-shadow var(--t);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh2)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-soft)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 200ms ease-out}
.card:hover .card-media img{transform:scale(1.03)}
.media-badge{
  position:absolute;left:12px;top:12px;z-index:2;display:inline-flex;align-items:center;height:24px;
  padding:0 10px;border-radius:var(--r-pill);background:rgba(18,59,55,.85);color:#fff;font-size:13px;
}
.card-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:18px;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;gap:12px;font-size:14px;color:var(--text-2);margin-top:auto;flex-wrap:wrap}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);background:var(--bg-soft);color:var(--main);font-size:13px;white-space:nowrap}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:13px;white-space:nowrap}
.badge-accent{background:#FBEFE4;color:#A4611F}
.badge-main{background:#E6EFEC;color:var(--main)}

/* ---------- 信息列表 ---------- */
.cms-feature{
  display:grid;grid-template-columns:5fr 7fr;background:#fff;border:1px solid var(--border);
  border-radius:var(--r);box-shadow:var(--sh1);overflow:hidden;margin-bottom:24px;
  transition:transform var(--t),box-shadow var(--t);
}
.cms-feature:hover{transform:translateY(-2px);box-shadow:var(--sh2)}
.cms-feature .cms-media{aspect-ratio:16/9;overflow:hidden;background:var(--bg-soft)}
.cms-feature .cms-media img{width:100%;height:100%;object-fit:cover}
.cms-feature .cms-body{padding:28px;display:flex;flex-direction:column;gap:12px;justify-content:center}
.cms-feature h3{font-size:22px;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-feature .cms-sum{font-size:15px;line-height:1.85;color:var(--text-2);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.cms-card{
  display:flex;gap:16px;background:#fff;border:1px solid var(--border);border-radius:var(--r);
  box-shadow:var(--sh1);padding:16px;transition:transform var(--t),box-shadow var(--t);
}
.cms-card:hover{transform:translateY(-2px);box-shadow:var(--sh2)}
.cms-thumb{width:120px;flex:none;aspect-ratio:16/9;border-radius:var(--r-sm);overflow:hidden;background:var(--bg-soft)}
.cms-thumb img{width:100%;height:100%;object-fit:cover}
.cms-card .cms-body{display:flex;flex-direction:column;gap:8px;min-width:0}
.cms-card h3{font-size:17px;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-card .cms-meta{font-size:13px;color:var(--text-2);display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.read-arrow{display:inline-flex;align-items:center;gap:4px;font-size:14px;color:var(--main);margin-top:auto}
.read-arrow svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.5;transition:transform var(--t)}
.cms-card:hover .read-arrow svg,.cms-feature:hover .read-arrow svg{transform:translateX(4px)}
.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;background:var(--bg-soft);border-radius:var(--r);text-align:center;padding:32px;color:var(--text-2);
}
.empty-state svg{width:36px;height:36px;stroke:var(--jade);fill:none;stroke-width:1.5}

/* ---------- 交错图文 ---------- */
.split-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:36px 0}
.split-row + .split-row{border-top:1px solid var(--line)}
.split-row.is-reverse .split-media{order:2}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r);box-shadow:var(--sh1)}
.split-copy .num{display:block;font-size:46px;line-height:1;font-weight:700;color:var(--accent);opacity:.9;font-variant-numeric:tabular-nums;margin-bottom:14px}
.split-copy h3{font-size:24px;margin-bottom:12px}
.split-copy p{font-size:16px;line-height:1.9;color:var(--text-2);margin:0}
.split-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}

/* ---------- 数据条 ---------- */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{text-align:center;padding:8px 16px;border-left:1px solid var(--border)}
.stat:first-child{border-left:none}
.stat b{display:block;font-size:36px;line-height:1.25;color:var(--accent);font-variant-numeric:tabular-nums;font-weight:700}
.stat span{font-size:15px;color:var(--text-2)}

/* ---------- FAQ ---------- */
.faq-accordion{max-width:800px;margin:0 auto;background:transparent;border:none}
.faq-accordion .accordion-item{border:none;border-bottom:1px solid var(--line);background:transparent}
.faq-accordion .accordion-item:first-child{border-top:1px solid var(--line)}
.faq-accordion .accordion-title{
  border:none;background:transparent;color:var(--text);font-size:18px;font-weight:600;
  padding:20px 44px 20px 0;position:relative;transition:color var(--t);
}
.faq-accordion .accordion-title:hover{color:var(--main)}
.faq-accordion .accordion-title::before{display:none;content:""}
.faq-accordion .accordion-title::after{
  content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--accent);line-height:1;transition:transform var(--t);
}
.faq-accordion .accordion-title[aria-expanded="true"]::after{content:"−";transform:translateY(-50%) rotate(180deg)}
.faq-accordion .accordion-content{border:none;background:transparent;padding:0 0 20px}
.faq-accordion .accordion-content p{font-size:16px;line-height:1.85;color:var(--text-2);margin:0}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--main-dark);padding:80px 0;text-align:center;color:#fff}
.cta-band h2{color:#fff;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.78);max-width:640px;margin:0 auto 28px;font-size:16px;line-height:1.9}
.cta-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.cta-band .btn-primary{background:var(--accent);color:#20160c}
.cta-band .btn-primary:hover{background:#E39A62;color:#20160c}
.cta-band .btn-ghost{background:transparent;border-color:rgba(255,255,255,.32);color:#fff}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.6);color:#fff}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--main-dark);color:rgba(255,255,255,.72);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}
.footer-brand .fb-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-brand .fb-mark{width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center;box-shadow:inset 0 1px 0 rgba(255,255,255,.14)}
.footer-brand .fb-mark svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:1.5}
.footer-brand strong{color:#fff;font-size:17px;font-weight:700}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);margin:0;max-width:32em}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px;letter-spacing:.02em}
.footer-col a,.footer-col span{display:block;font-size:14px;color:rgba(255,255,255,.72);padding:6px 0;line-height:1.7}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0 24px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:14px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{max-width:960px}
  .live-grid{grid-template-columns:6fr 6fr;gap:32px}
  .card-grid{gap:20px}
}
@media (max-width:991px){
  .section{padding:64px 0}
  .nav-toggle{display:flex}
  .nav-links{
    display:none;flex:1 0 100%;grid-template-columns:1fr 1fr;gap:8px;margin-top:12px;
  }
  .nav-links.is-open{display:grid}
  .nav-card{flex-direction:row;justify-content:flex-start;min-width:0;min-height:48px;background:var(--bg-soft);padding:10px 14px}
  .nav-card.is-active{background:#E6EFEC}
  .nav-cta{display:none}
  .drawer-cta{display:flex;grid-column:1 / -1;margin-top:4px}
  .live-grid{grid-template-columns:1fr;gap:28px}
  .hl-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .sub-panel{grid-template-columns:1fr;gap:32px;padding:32px}
  .cms-feature{grid-template-columns:1fr}
  .cms-feature .cms-body{padding:22px}
  .cms-grid{grid-template-columns:1fr}
  .split-row{grid-template-columns:1fr;gap:24px;padding:28px 0}
  .split-row.is-reverse .split-media{order:0}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:24px 0}
  .stat:nth-child(3){border-left:none}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.85}
  .container{padding:0 16px}
  h1,.live-copy h1{font-size:28px;line-height:1.3}
  h2{font-size:24px}
  h3{font-size:20px}
  .section{padding:48px 0}
  .section-head{margin-bottom:28px}
  .section-head--row{flex-direction:column;align-items:flex-start;gap:16px}
  .brand-text em{display:none}
  .card-grid{grid-template-columns:1fr;gap:16px}
  .hl-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .live-time{font-size:14px}
  .countdown-wrap{padding-bottom:56px}
  .countdown-card{gap:14px;padding:16px}
  .cd-digits{order:3;width:100%;margin:0;gap:8px}
  .cd-unit{min-width:0;flex:1}
  .cd-unit b{font-size:30px}
  .cd-btn{width:100%}
  .cms-card{flex-direction:column}
  .cms-thumb{width:100%}
  .stat b{font-size:30px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;gap:6px}
  .faq-accordion .accordion-title{font-size:17px;padding:18px 40px 18px 0}
  .cta-band{padding:56px 0}
}
@media (max-width:480px){
  h1,.live-copy h1{font-size:26px}
  .container{padding:0 16px}
  .chip{font-size:13px;padding:0 12px}
  .cms-feature h3{font-size:19px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --ink:#17211F;
  --ink-2:#5D6B67;
  --ink-3:#8A958F;
  --brand:#1E5B54;
  --brand-deep:#123B37;
  --sand:#D9884A;
  --sand-ink:#A4611F;
  --sand-soft:#FBEFE4;
  --brand-soft:#E6EFEC;
  --bamboo:#6C9E92;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --soft-1:#EFF2EE;
  --soft-2:#F1ECE2;
  --line:#E4DED2;
  --line-2:#EDE7DC;
  --ok:#2E7D5B;
  --warn:#C4762E;
  --r-card:16px;
  --r-hero:20px;
  --r-sm:10px;
  --sh-1:0 1px 2px rgba(23,33,31,.05),0 8px 24px rgba(23,33,31,.06);
  --sh-2:0 6px 14px rgba(23,33,31,.10),0 18px 40px rgba(23,33,31,.10);
  --ease:.18s ease-out;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  letter-spacing:0;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease)}
a:hover,a:focus{color:var(--brand-deep)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button{cursor:pointer}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--sand);outline-offset:2px}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

.container{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 22px;border-radius:var(--r-sm);
  font-size:16px;font-weight:600;line-height:1;letter-spacing:.01em;
  border:1px solid transparent;transition:all var(--ease);text-align:center;
}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.btn-primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn-primary:hover,.btn-primary:focus{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand-deep);border-color:var(--line)}
.btn-ghost:hover,.btn-ghost:focus{background:var(--soft-1);border-color:var(--brand);color:var(--brand)}
.btn-sm{min-height:44px;padding:0 18px;font-size:15px}
.btn-block{width:100%}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:70;padding:16px 0;transition:padding var(--ease)}
.site-header.is-stuck{padding:8px 0}
.nav-panel{
  position:relative;display:flex;align-items:center;gap:16px;
  background:rgba(255,255,255,.95);
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:10px 14px;box-shadow:var(--sh-1);
  transition:box-shadow var(--ease);
}
.site-header.is-stuck .nav-panel{box-shadow:var(--sh-2)}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--ink);min-height:48px}
.brand:hover{color:var(--ink)}
.brand-mark{width:42px;height:42px;border-radius:12px;background:var(--brand);display:grid;place-items:center;flex:0 0 auto;box-shadow:inset 0 1px 0 rgba(255,255,255,.22)}
.brand-mark svg{width:22px;height:22px;fill:none;stroke:#fff;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.brand-text strong{display:block;font-size:17px;font-weight:700;line-height:1.35;letter-spacing:.01em}
.brand-text em{display:block;font-style:normal;font-size:12px;color:var(--ink-3);letter-spacing:.03em;line-height:1.6}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-card{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  min-height:48px;padding:8px 16px;border-radius:var(--r-sm);
  color:var(--ink-2);font-size:13px;line-height:1.2;transition:all var(--ease);
}
.nav-card svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.nav-card span{white-space:nowrap}
.nav-card:hover,.nav-card:focus{background:var(--soft-1);color:var(--brand)}
.nav-card.is-active{background:var(--soft-1);color:var(--brand);box-shadow:inset 0 -2px 0 var(--brand)}
.nav-cta{margin-left:8px;flex:0 0 auto}
.nav-toggle{
  display:none;width:48px;height:48px;margin-left:auto;border:1px solid var(--line);
  background:#fff;border-radius:var(--r-sm);flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-deep);border-radius:2px;transition:all var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.drawer-cta{display:none}

/* ============ 面包屑 ============ */
.crumb-bar{padding:8px 0 0}
.breadcrumbs{margin:0;padding:0;list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:14px;line-height:1.7;color:var(--ink-2)}
.breadcrumbs li{display:flex;align-items:center;gap:6px;color:var(--ink-2)}
.breadcrumbs li::after{content:"/";color:var(--line);margin-left:2px}
.breadcrumbs li:last-child::after{display:none}
.breadcrumbs a{color:var(--ink-2)}
.breadcrumbs a:hover{color:var(--brand)}
.breadcrumbs .is-current{color:var(--brand);font-weight:400}

/* ============ 文章头 ============ */
.article-head{padding:28px 0 40px}
.article-head-inner{max-width:840px}
.chip{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  background:var(--soft-1);color:var(--brand);font-size:13px;line-height:1;white-space:nowrap;
}
.chip-sand{background:var(--sand-soft);color:var(--sand-ink)}
.article-head h1{
  font-size:40px;line-height:1.25;font-weight:700;letter-spacing:.01em;
  margin:16px 0 18px;color:var(--ink);
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;font-size:14px;line-height:1.7;color:var(--ink-2)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--line)}
.meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-item svg{width:16px;height:16px;fill:none;stroke:var(--bamboo);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}

/* ============ 布局 ============ */
.article-layout{max-width:1200px;margin:0 auto}
.article-layout > .columns{padding-left:12px;padding-right:12px}

/* ============ 正文 ============ */
.article-body-wrap{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:36px 40px 40px;
}
.article-cover{border-radius:var(--r-card);overflow:hidden;margin-bottom:28px;background:var(--soft-1)}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-body{font-size:17px;line-height:1.95;color:var(--ink);word-wrap:break-word}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.15em}
.article-body h2{
  font-size:26px;line-height:1.4;font-weight:700;letter-spacing:.01em;
  margin:48px 0 16px;padding-left:14px;border-left:4px solid var(--brand);
}
.article-body h3{font-size:20px;line-height:1.5;font-weight:600;margin:32px 0 12px}
.article-body h4{font-size:18px;line-height:1.6;font-weight:600;margin:24px 0 10px}
.article-body ul,.article-body ol{margin:0 0 1.15em;padding-left:0}
.article-body li{position:relative;padding-left:20px;margin:6px 0}
.article-body ul > li::before{
  content:"";position:absolute;left:2px;top:.78em;width:7px;height:7px;border-radius:50%;background:var(--sand);
}
.article-body ol{counter-reset:artnum}
.article-body ol > li{counter-increment:artnum}
.article-body ol > li::before{
  content:counter(artnum) ".";position:absolute;left:0;top:0;color:var(--sand-ink);
  font-weight:600;font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:0 0 1.15em;padding:16px 20px;background:var(--soft-2);
  border-left:4px solid var(--sand);border-radius:0 12px 12px 0;color:var(--ink-2);font-style:normal;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--brand);text-decoration:underline;text-decoration-color:rgba(30,91,84,.4);text-underline-offset:3px}
.article-body a:hover{color:var(--brand-deep);text-decoration-color:var(--sand)}
.article-body img{border-radius:12px;margin:8px 0 20px}
.article-body figure{margin:8px 0 20px}
.article-body figcaption{font-size:13px;line-height:1.7;color:var(--ink-3);text-align:center;margin-top:8px}
.article-body table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:0 0 1.15em;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap}
.article-body th{background:var(--soft-1);font-weight:600;color:var(--brand-deep)}
.article-body hr{border:0;border-top:1px solid var(--line-2);margin:32px 0}

/* 文末操作区 */
.article-foot{margin-top:32px;padding-top:24px;border-top:1px solid var(--line-2)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.tag-row .chip{height:26px}
.article-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 侧栏 ============ */
.article-side{position:relative}
.side-sticky{position:sticky;top:96px;display:grid;gap:20px}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:22px 22px 24px;
}
.side-card h3{font-size:18px;font-weight:600;line-height:1.5;margin-bottom:14px;color:var(--ink)}
.side-toc{display:grid;gap:4px}
.side-toc a{
  display:flex;align-items:center;gap:10px;min-height:44px;padding:0 10px;border-radius:var(--r-sm);
  color:var(--ink-2);font-size:15px;transition:all var(--ease);
}
.side-toc a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--bamboo);flex:0 0 auto}
.side-toc a:hover,.side-toc a:focus{background:var(--soft-1);color:var(--brand)}
.side-toc a:hover::before{background:var(--sand)}
.side-list{display:grid;gap:14px}
.side-list a{display:block;color:var(--ink);font-size:15px;line-height:1.6;font-weight:600}
.side-list a:hover{color:var(--brand)}
.side-list span{display:block;font-size:13px;color:var(--ink-3);line-height:1.7;margin-top:4px;font-weight:400}
.side-list li + li{padding-top:14px;border-top:1px solid var(--line-2)}
.side-cta{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.12)}
.side-cta h3{color:#fff}
.side-cta p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.76);margin-bottom:16px}
.side-cta .btn-ghost{background:transparent;border-color:rgba(255,255,255,.4);color:#fff}
.side-cta .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}

/* ============ 空态 ============ */
.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;background:var(--soft-1);border:1px solid var(--line);border-radius:var(--r-card);
  padding:36px 24px;text-align:center;
}
.empty-state svg{width:44px;height:44px;fill:none;stroke:var(--bamboo);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.empty-state p{color:var(--ink-2);font-size:16px}

/* ============ 相关推荐 ============ */
.section{padding:96px 0}
.section-soft{background:var(--soft-1);border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:.01em;padding-left:14px;border-left:4px solid var(--brand)}
.section-head p{font-size:15px;color:var(--ink-2);margin-top:10px;padding-left:18px;max-width:34em}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;transition:all var(--ease);height:100%;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.card-media{position:relative;overflow:hidden;background:var(--soft-1)}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 200ms ease-out}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px;line-height:1.5;font-weight:600;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:14px;line-height:1.8;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink-3);margin-top:auto}
.card-link{position:absolute;inset:0;z-index:2;text-indent:-9999px;overflow:hidden}
.card{position:relative}

/* ============ CTA 带 ============ */
.cta-band{background:var(--brand-deep);color:#fff;padding:64px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:28px;line-height:1.4;font-weight:700;color:#fff}
.cta-inner p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.76);margin-top:10px;max-width:38em}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-actions .btn-ghost{background:transparent;border-color:rgba(255,255,255,.42);color:#fff}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}
.cta-actions .btn-primary{background:var(--sand);border-color:var(--sand);color:#2A1A0C}
.cta-actions .btn-primary:hover{background:#E39A5F;border-color:#E39A5F;color:#2A1A0C}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-deep);color:#fff;padding:64px 0 24px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.14)}
.footer-brand .fb-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.fb-mark{width:40px;height:40px;border-radius:12px;background:rgba(255,255,255,.10);display:grid;place-items:center;box-shadow:inset 0 1px 0 rgba(255,255,255,.16)}
.fb-mark svg{width:20px;height:20px;fill:none;stroke:#fff;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.footer-brand strong{font-size:17px;font-weight:700;letter-spacing:.01em}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:30em}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-col a,.footer-col span{display:block;font-size:14px;line-height:2;color:rgba(255,255,255,.72)}
.footer-col a:hover,.footer-col a:focus{color:#fff;text-decoration:underline}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:20px;font-size:14px;color:rgba(255,255,255,.6)}

/* ============ 装饰 ============ */
.arch-motif{
  position:absolute;right:20px;top:110px;width:180px;height:230px;pointer-events:none;
  border:1px solid var(--brand);border-bottom:0;border-radius:100px 100px 0 0;opacity:.10;
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{max-width:1000px}
  .card-grid{gap:20px}
  .article-head h1{font-size:34px}
}
@media (max-width:991px){
  .nav-toggle{display:flex}
  .nav-cta{display:none}
  .nav-links{
    display:none;position:absolute;top:calc(100% + 12px);left:0;right:0;
    background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--sh-2);padding:16px;margin-left:0;
  }
  .nav-links.is-open{display:grid;grid-template-columns:1fr 1fr;gap:12px}
  .nav-card{align-items:flex-start;justify-content:flex-start;background:var(--soft-1);padding:14px;font-size:14px}
  .drawer-cta{display:inline-flex;grid-column:1/-1;width:100%}
  .section{padding:64px 0}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .article-body-wrap{padding:28px 24px 32px}
  .article-head h1{font-size:30px}
  .side-sticky{position:static}
  .article-side{margin-top:8px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .arch-motif{display:none}
}
@media (max-width:767px){
  .container{padding-left:16px;padding-right:16px}
  .site-header{padding:10px 0}
  .brand-text em{display:none}
  .brand-text strong{font-size:16px}
  .section{padding:48px 0}
  .article-head{padding:20px 0 28px}
  .article-head h1{font-size:26px;line-height:1.3}
  .article-body-wrap{padding:22px 18px 26px;border-radius:12px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:22px;margin:36px 0 14px}
  .article-body h3{font-size:18px;margin:26px 0 10px}
  .card-grid{grid-template-columns:1fr}
  .card-body{padding:16px}
  .section-head h2{font-size:24px}
  .cta-inner h2{font-size:23px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .article-actions{flex-direction:column}
  .article-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:480px){
  .article-head h1{font-size:26px}
  .chip{white-space:nowrap}
}

/* roulang page: category1 */
:root{
  --c-primary:#1E5B54;
  --c-primary-dark:#123B37;
  --c-sand:#D9884A;
  --c-sand-soft:#FBEFE4;
  --c-sand-text:#A4611F;
  --c-gray-green:#6C9E92;
  --c-paper:#F7F4EE;
  --c-white:#FFFFFF;
  --c-sec-a:#EFF2EE;
  --c-sec-b:#F1ECE2;
  --c-ink:#17211F;
  --c-ink-2:#5D6B67;
  --c-ink-3:#8A958F;
  --c-line:#E4DED2;
  --c-line-2:#EDE7DC;
  --c-ok:#2E7D5B;
  --c-warn:#C4762E;
  --r-card:16px;
  --r-hero:20px;
  --r-sm:10px;
  --sh-1:0 1px 2px rgba(23,33,31,.05), 0 8px 24px rgba(23,33,31,.06);
  --sh-2:0 6px 14px rgba(23,33,31,.10), 0 18px 40px rgba(23,33,31,.10);
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.9;
  color:var(--c-ink);
  background:var(--c-paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease)}
a:hover{color:var(--c-primary-dark)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--c-sand);outline-offset:2px}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-ink);letter-spacing:.01em}
h1{font-size:40px;line-height:1.25}
h2{font-size:30px;line-height:1.35}
h3{font-size:22px;line-height:1.5;font-weight:600}
h4{font-size:18px;line-height:1.6;font-weight:600}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:96px 0}
.section--white{background:var(--c-white)}
.section--paper{background:var(--c-paper)}
.section--alt{background:var(--c-sec-b)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.sec-head h2{position:relative;padding-left:16px}
.sec-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--c-primary)}
.sec-sub{color:var(--c-ink-2);font-size:16px;line-height:1.8;max-width:34em;margin:10px 0 0}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 22px;border-radius:var(--r-sm);font-size:16px;font-weight:600;line-height:1;border:1px solid transparent;cursor:pointer;transition:all var(--ease);text-decoration:none}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 18px rgba(18,59,55,.24)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-primary-dark)}
.btn-ghost:hover{background:var(--c-sec-a);border-color:var(--c-primary);color:var(--c-primary-dark)}
.btn-ghost-dark{background:transparent;border-color:rgba(255,255,255,.42);color:#fff}
.btn-ghost-dark:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-lg{height:52px;padding:0 26px}
.btn[disabled]{opacity:.4;cursor:not-allowed}

/* 徽章 / 标签 */
.chip{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--c-sec-a);color:var(--c-primary);font-size:13px;line-height:1;white-space:nowrap}
.chip-sand{background:var(--c-sand-soft);color:var(--c-sand-text)}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--c-sand-soft);color:var(--c-sand-text);font-size:13px;font-weight:600;white-space:nowrap}

/* 头部导航 */
.site-header{position:sticky;top:0;z-index:60;padding:16px 0;background:rgba(247,244,238,.94);backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:padding var(--ease),box-shadow var(--ease),border-color var(--ease)}
.site-header.is-stuck{padding:8px 0;box-shadow:0 6px 18px rgba(23,33,31,.08);border-bottom-color:var(--c-line)}
.nav-panel{position:relative;display:flex;align-items:center;gap:20px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:10px 16px;box-shadow:var(--sh-1)}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{width:42px;height:42px;border-radius:12px;background:var(--c-primary);display:grid;place-items:center;color:#fff;flex:0 0 auto}
.brand-mark svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.brand-text strong{display:block;font-size:17px;line-height:1.3;color:var(--c-ink);letter-spacing:.01em}
.brand-text em{display:block;font-style:normal;font-size:12px;line-height:1.5;color:var(--c-ink-3)}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-card{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;min-height:44px;padding:8px 14px;border-radius:var(--r-sm);background:transparent;color:var(--c-ink-2);font-size:13px;line-height:1.2;position:relative;transition:all var(--ease)}
.nav-card svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.nav-card:hover{background:var(--c-sec-a);color:var(--c-primary)}
.nav-card.is-active{background:var(--c-sec-a);color:var(--c-primary);font-weight:600}
.nav-card.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:var(--c-primary)}
.nav-cta{flex:0 0 auto}
.drawer-cta{display:none}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:4px;width:44px;height:44px;padding:0 10px;margin-left:auto;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-sm);cursor:pointer}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--c-ink-2)}

/* 面包屑 */
.crumbs{margin-bottom:18px}
.breadcrumbs{margin:0;padding:0;background:transparent;border:0}
.breadcrumbs::before,.breadcrumbs::after{display:none;content:""}
.breadcrumbs li{float:none;display:inline-block;font-size:14px;line-height:1.7;color:var(--c-ink-2);text-transform:none;letter-spacing:0}
.breadcrumbs li a{color:var(--c-ink-2);border-bottom:0}
.breadcrumbs li a:hover{color:var(--c-primary);text-decoration:underline}
.breadcrumbs li:not(:last-child)::after{content:"/";margin:0 8px;color:var(--c-ink-3);opacity:1;top:0}
.breadcrumbs li:last-child{color:var(--c-primary);font-weight:400}

/* 分类 Hero */
.cat-hero{position:relative;background:var(--c-sec-a);padding:48px 0 72px;overflow:hidden}
.cat-hero::after{content:"";position:absolute;right:-80px;bottom:-120px;width:420px;height:420px;border-radius:50%;border:1px solid rgba(30,91,84,.12);pointer-events:none}
.cat-hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.cat-hero h1{margin:16px 0 18px}
.cat-hero .lead{font-size:18px;line-height:1.9;color:var(--c-ink-2);max-width:34em;margin:0 0 24px}
.hero-meta{display:flex;flex-wrap:wrap;gap:20px;margin-bottom:28px}
.hero-meta span{display:inline-flex;align-items:center;gap:8px;font-size:14px;line-height:1.6;color:var(--c-ink-2)}
.hero-meta svg{width:18px;height:18px;fill:none;stroke:var(--c-primary);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;flex:0 0 auto}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-arch{position:relative;border-radius:180px 180px var(--r-hero) var(--r-hero);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--sh-1);aspect-ratio:4/5;background:#fff}
.hero-arch img{width:100%;height:100%;object-fit:cover}

/* 目录 + 条目 */
.cat-body{background:#fff;padding:96px 0}
.cat-grid{display:grid;grid-template-columns:3fr 9fr;gap:32px;align-items:start}
.anchor-nav{position:sticky;top:96px;background:var(--c-paper);border:1px solid var(--c-line);border-radius:var(--r-card);padding:20px}
.anchor-nav>.anchor-title{font-size:16px;font-weight:600;color:var(--c-ink);padding-bottom:12px;margin-bottom:4px;border-bottom:1px solid var(--c-line)}
.anchor-group{margin-top:16px}
.anchor-group h3{font-size:13px;font-weight:600;color:var(--c-ink-3);letter-spacing:.04em;margin-bottom:6px}
.anchor-group a{display:flex;align-items:flex-start;gap:8px;padding:9px 10px;border-radius:8px;font-size:14px;line-height:1.55;color:var(--c-ink-2);min-height:44px;transition:all var(--ease)}
.anchor-group a .num{font-variant-numeric:tabular-nums;color:var(--c-sand);font-size:13px;flex:0 0 auto;line-height:1.55}
.anchor-group a:hover{background:var(--c-sec-a);color:var(--c-primary)}
.anchor-group a.is-current{background:var(--c-sec-a);color:var(--c-primary);font-weight:600}

.guide-list{border-top:1px solid var(--c-line-2)}
.guide-item{display:grid;grid-template-columns:56px 1fr 32px;gap:20px;padding:24px 20px;border-bottom:1px solid var(--c-line-2);border-radius:var(--r-sm);scroll-margin-top:120px;transition:background-color var(--ease)}
.guide-item:hover{background:var(--c-sec-a)}
.guide-no{font-size:20px;font-weight:700;line-height:1.4;color:var(--c-sand);font-variant-numeric:tabular-nums}
.guide-main h3{font-size:20px;margin-bottom:8px}
.guide-main p{margin:0 0 12px;font-size:15.5px;line-height:1.85;color:var(--c-ink-2);max-width:60em}
.guide-tags{display:flex;flex-wrap:wrap;gap:8px}
.guide-arrow{align-self:center;color:var(--c-gray-green);transition:transform var(--ease),color var(--ease)}
.guide-arrow svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.guide-item:hover .guide-arrow{transform:translateX(4px);color:var(--c-sand)}

/* 数据条 */
.stats{background:var(--c-sec-b);padding:56px 0;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.stats-label{font-size:15px;font-weight:600;color:var(--c-ink-3);letter-spacing:.04em;margin:0 0 24px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:0 24px;border-left:1px solid var(--c-line)}
.stat:first-child{border-left:0;padding-left:0}
.stat b{display:block;font-size:34px;font-weight:700;line-height:1.2;color:var(--c-sand);font-variant-numeric:tabular-nums}
.stat span{display:block;font-size:14px;line-height:1.7;color:var(--c-ink-2);margin-top:6px}

/* 图文区块 */
.feature{display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:center}
.feature-media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--sh-1);aspect-ratio:16/10;background:#fff}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease-out}
.feature-media:hover img{transform:scale(1.03)}
.feature-text h2{margin-bottom:14px}
.feature-text>p{color:var(--c-ink-2);font-size:16px;margin-bottom:20px}
.check-list li{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid var(--c-line-2);font-size:16px;line-height:1.75;color:var(--c-ink-2)}
.check-list li:first-child{border-top:1px solid var(--c-line-2)}
.check-list li b{color:var(--c-ink);font-weight:600}
.dot{width:8px;height:8px;border-radius:50%;background:var(--c-sand);flex:0 0 auto;margin-top:11px}

/* FAQ */
.faq-wrap{max-width:800px;margin:0 auto}
.faq .accordion{background:transparent;border:0;margin:0}
.faq .accordion-item{border:0;border-bottom:1px solid var(--c-line)}
.faq .accordion-item:first-child{border-top:1px solid var(--c-line)}
.faq .accordion-title{background:transparent;border:0;padding:22px 44px 22px 0;font-size:18px;font-weight:600;line-height:1.5;color:var(--c-ink);position:relative;transition:color var(--ease)}
.faq .accordion-title:hover,.faq .accordion-title:focus{background:transparent;color:var(--c-primary)}
.faq .accordion-title h3{font-size:18px;font-weight:600;line-height:1.5;color:inherit;margin:0}
.faq .accordion-title::after{content:"+";position:absolute;right:8px;top:50%;transform:translateY(-50%);font-size:24px;font-weight:400;line-height:1;color:var(--c-sand);transition:transform var(--ease)}
.faq .accordion-item.is-active .accordion-title::after{content:"−";transform:translateY(-50%) rotate(180deg)}
.faq .accordion-content{padding:0 0 20px;border:0;background:transparent;color:var(--c-ink-2);font-size:16px;line-height:1.85}
.faq .accordion-content p{margin:0}

/* CTA 带 */
.cta-band{background:var(--c-primary-dark);color:#fff;padding:80px 0}
.cta-grid{display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:center}
.cta-band h2{color:#fff}
.cta-band .cta-lead{color:rgba(255,255,255,.78);font-size:16px;line-height:1.85;margin:14px 0 22px;max-width:30em}
.cta-form{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-card);padding:24px;box-shadow:inset 0 1px 0 rgba(255,255,255,.12)}
.cta-form label{display:block;font-size:14px;line-height:1.6;color:rgba(255,255,255,.82);margin:0 0 8px}
.cta-form .field-row{display:flex;gap:12px}
.cta-form input[type="email"]{flex:1;height:48px;margin:0;padding:0 16px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.24);background:#fff;color:var(--c-ink);font-size:15px;box-shadow:none}
.cta-form input[type="email"]::placeholder{color:var(--c-ink-3)}
.cta-form input[type="email"]:focus{border-color:var(--c-sand);box-shadow:0 0 0 2px rgba(217,136,74,.45);outline:none}
.cta-form .tips{font-size:13px;line-height:1.7;color:rgba(255,255,255,.6);margin:12px 0 0}
.form-msg{font-size:14px;line-height:1.6;margin:12px 0 0;min-height:22px}
.form-msg.is-ok{color:#8FE0BE}
.form-msg.is-error{color:#F0B37E}

/* 页脚 */
.site-footer{background:var(--c-primary-dark);color:#fff;padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}
.footer-brand .fb-top{display:flex;align-items:center;gap:10px}
.fb-mark{width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.1);display:grid;place-items:center;flex:0 0 auto}
.fb-mark svg{width:20px;height:20px;fill:none;stroke:#fff;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.footer-brand strong{font-size:17px;color:#fff}
.footer-brand p{color:rgba(255,255,255,.7);font-size:14px;line-height:1.8;margin:14px 0 0;max-width:32em}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:12px}
.footer-col a,.footer-col span{display:block;color:rgba(255,255,255,.72);font-size:14px;line-height:1.7;padding:6px 0}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;line-height:1.7;color:rgba(255,255,255,.6)}

/* 断点 */
@media (max-width:1199px){
  .cat-hero-grid{gap:36px}
  .cat-grid{gap:24px}
}
@media (max-width:991px){
  .section{padding:64px 0}
  .cat-body{padding:64px 0}
  .cat-hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-arch{aspect-ratio:16/10;border-radius:140px 140px var(--r-hero) var(--r-hero);max-width:560px}
  .cat-grid{grid-template-columns:1fr}
  .anchor-nav{position:static;display:flex;align-items:center;gap:8px;overflow-x:auto;padding:10px 12px;border-radius:12px;-webkit-overflow-scrolling:touch}
  .anchor-nav>.anchor-title{display:none}
  .anchor-group{display:flex;gap:8px;margin:0}
  .anchor-group h3{display:none}
  .anchor-group a{white-space:nowrap;background:#fff;border:1px solid var(--c-line);border-radius:999px;padding:8px 14px;min-height:40px;align-items:center}
  .anchor-group a .num{display:none}
  .feature{grid-template-columns:1fr;gap:28px}
  .cta-grid{grid-template-columns:1fr;gap:28px}
  .stats-grid{grid-template-columns:repeat(2,1fr);row-gap:28px}
  .stat:nth-child(3){border-left:0;padding-left:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  body{font-size:16px;line-height:1.85}
  h1{font-size:28px}
  h2{font-size:23px}
  h3{font-size:19px}
  .section{padding:48px 0}
  .cat-body{padding:48px 0}
  .cat-hero{padding:32px 0 48px}
  .cat-hero .lead{font-size:16px}
  .sec-head{margin-bottom:28px}
  .hero-actions .btn{width:100%}
  .nav-cta{display:none}
  .nav-toggle{display:flex}
  .nav-links{display:none}
  .nav-links.is-open{display:grid;grid-template-columns:1fr 1fr;gap:8px;position:absolute;top:calc(100% + 10px);left:0;right:0;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:12px;box-shadow:var(--sh-2);margin-left:0;z-index:70}
  .nav-card{background:var(--c-sec-a);min-height:64px;font-size:13px}
  .nav-card.is-active::after{left:10px;right:10px}
  .drawer-cta{display:inline-flex;grid-column:1 / -1;justify-content:center;width:100%}
  .brand-text em{display:none}
  .guide-item{grid-template-columns:38px 1fr;gap:14px;padding:20px 12px}
  .guide-main h3{font-size:18px}
  .guide-arrow{display:none}
  .stats{padding:40px 0}
  .stat b{font-size:28px}
  .cta-band{padding:56px 0}
  .cta-form .field-row{flex-direction:column}
  .cta-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-col a,.footer-col span{font-size:14px}
}
@media (max-width:479px){
  h1{font-size:26px}
  .stat{padding:0 16px}
  .hero-meta{gap:12px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --c-primary:#1E5B54;
  --c-primary-dark:#123B37;
  --c-accent:#D9884A;
  --c-accent-deep:#A4611F;
  --c-sage:#6C9E92;
  --bg:#F7F4EE;
  --bg-alt-a:#EFF2EE;
  --bg-alt-b:#F1ECE2;
  --card:#FFFFFF;
  --text:#17211F;
  --muted:#5D6B67;
  --weak:#8A958F;
  --border:#E4DED2;
  --divider:#EDE7DC;
  --ok:#2E7D5B;
  --warn:#C4762E;
  --r-card:16px;
  --r-hero:20px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(23,33,31,.05),0 8px 24px rgba(23,33,31,.06);
  --sh-2:0 6px 14px rgba(23,33,31,.10),0 18px 40px rgba(23,33,31,.10);
  --t:180ms ease-out;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{font-family:inherit;color:var(--text);margin:0;letter-spacing:.01em;}
h1{font-size:40px;line-height:1.25;font-weight:700;}
h2{font-size:30px;line-height:1.35;font-weight:700;}
h3{font-size:22px;line-height:1.5;font-weight:600;}
h4{font-size:18px;line-height:1.6;font-weight:600;}
p{margin:0 0 1.15em;line-height:1.9;}
p:last-child{margin-bottom:0;}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--t);}
a:hover,a:focus{color:var(--c-primary-dark);}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.is-disabled{opacity:.4;cursor:not-allowed;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.row{margin-left:-12px;margin-right:-12px;}
.columns{padding-left:12px;padding-right:12px;}
.section{padding:96px 0;}
.section-alt{background:var(--bg-alt-a);}
.section-warm{background:var(--bg-alt-b);}
.section-line{border-top:1px solid var(--divider);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-sm);
  font-size:16px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-sm{height:44px;padding:0 18px;font-size:15px;}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover,.btn-primary:focus{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:#fff;border-color:var(--border);color:var(--c-primary-dark);}
.btn-ghost:hover,.btn-ghost:focus{background:var(--bg-alt-a);border-color:var(--c-primary);color:var(--c-primary);}
.btn-accent{background:var(--c-accent);color:#2B1A0C;}
.btn-accent:hover,.btn-accent:focus{background:#C77A3E;color:#2B1A0C;transform:translateY(-1px);}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.5);color:#fff;}
.btn-outline-light:hover,.btn-outline-light:focus{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}

/* ---------- 标签 / 徽章 ---------- */
.chip{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-pill);background:var(--bg-alt-a);color:var(--c-primary);
  font-size:13px;font-weight:500;white-space:nowrap;
}
.chip-warm{background:#FBEFE4;color:var(--c-accent-deep);}
.chip-light{background:rgba(255,255,255,.18);color:#fff;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-pill);background:var(--bg-alt-a);color:var(--c-primary);
  font-size:13px;white-space:nowrap;
}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;padding:14px 0 0;transition:padding var(--t);}
.site-header.is-scrolled{padding-top:6px;}
.nav-panel{
  position:relative;display:flex;align-items:center;gap:16px;
  background:rgba(255,255,255,.96);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:10px 16px;
  transition:box-shadow var(--t),padding var(--t);
}
.site-header.is-scrolled .nav-panel{box-shadow:var(--sh-2);padding:6px 16px;}
.brand{display:flex;align-items:center;gap:12px;min-height:44px;color:var(--text);}
.brand:hover{color:var(--c-primary);}
.brand-mark{
  width:40px;height:40px;flex:none;border-radius:12px;
  background:var(--bg-alt-a);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
}
.brand-mark svg,.fb-mark svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:17px;font-weight:700;color:inherit;}
.brand-text em{font-style:normal;font-size:12px;color:var(--weak);}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto;}
.nav-card{
  position:relative;display:flex;align-items:center;gap:8px;
  min-height:44px;padding:8px 12px;border-radius:var(--r-sm);
  color:var(--muted);font-size:15px;font-weight:600;white-space:nowrap;
  transition:background var(--t),color var(--t);
}
.nav-card svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.nav-card:hover{background:var(--bg-alt-a);color:var(--c-primary);}
.nav-card.is-active{background:var(--bg-alt-a);color:var(--c-primary);}
.nav-card.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:5px;height:2px;border-radius:2px;background:var(--c-primary);}
.nav-cta{margin-left:8px;}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--border);background:#fff;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-primary-dark);transition:transform var(--t),opacity var(--t);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.drawer-cta{display:none;}

/* ---------- Hero ---------- */
.cat-hero{padding:28px 0 0;}
.cat-hero-inner{
  position:relative;overflow:hidden;border-radius:var(--r-hero);
  min-height:320px;padding:56px 40px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;
  color:#fff;box-shadow:var(--sh-1);
  background-image:linear-gradient(rgba(18,59,55,.62),rgba(18,59,55,.62)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.cat-crumb{display:flex;justify-content:center;flex-wrap:wrap;gap:0 6px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.72);margin-bottom:20px;}
.cat-crumb a{color:rgba(255,255,255,.84);}
.cat-crumb a:hover{color:#fff;text-decoration:underline;}
.cat-crumb .sep{opacity:.55;}
.cat-crumb .current{color:#fff;}
.cat-hero-inner h1{color:#fff;max-width:20em;margin:16px 0 16px;}
.cat-hero-desc{color:rgba(255,255,255,.86);font-size:18px;line-height:1.85;max-width:34em;margin:0;}
.cat-hero-meta{display:flex;flex-wrap:wrap;justify-content:center;gap:12px 24px;margin-top:24px;font-size:14px;color:rgba(255,255,255,.8);}
.cat-hero-meta span{display:inline-flex;align-items:center;gap:6px;}
.cat-hero-meta svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- 区块标题 ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.section-head h2{position:relative;padding-left:16px;}
.section-head h2::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:2px;background:var(--c-primary);}
.section-head .sub{margin:8px 0 0;color:var(--muted);font-size:16px;line-height:1.8;}

/* ---------- 首条大卡 ---------- */
.cat2-feature{
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:24px;transition:box-shadow var(--t);
}
.cat2-feature:hover{box-shadow:var(--sh-2);}
.cat2-feature h3{font-size:24px;line-height:1.45;margin:12px 0 0;}
.cat2-feature p{color:var(--muted);font-size:16px;margin:12px 0 0;}

/* ---------- 图片比例 ---------- */
.ratio-16x9{position:relative;overflow:hidden;border-radius:var(--r-card);background:#E7E2D8;}
.ratio-16x9::before{content:"";display:block;padding-top:56.25%;}
.ratio-16x9 img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transition:transform 200ms ease-out;
}
.media-badge{
  position:absolute;left:12px;top:12px;z-index:2;
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);
  background:#D9884A;color:#2B1A0C;font-size:13px;font-weight:600;
  font-variant-numeric:tabular-nums;white-space:nowrap;
}
.dot-list{list-style:none;display:flex;flex-direction:column;gap:8px;margin:16px 0 0;}
.dot-list li{position:relative;padding-left:18px;font-size:15px;line-height:1.8;color:var(--muted);}
.dot-list li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--c-accent);}

/* ---------- 卡片网格 ---------- */
.cat2-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.card{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform var(--t),box-shadow var(--t);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.card:hover .ratio-16x9 img{transform:scale(1.03);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{font-size:20px;line-height:1.5;}
.card-body p{
  margin:0;color:var(--muted);font-size:15px;line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{display:flex;align-items:center;gap:12px;font-size:14px;color:var(--weak);margin-top:auto;font-variant-numeric:tabular-nums;}

/* ---------- 步骤条 ---------- */
.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding-top:8px;}
.steps::before{content:"";position:absolute;top:30px;left:52px;right:52px;height:1px;background:var(--border);}
.step{position:relative;display:flex;flex-direction:column;gap:12px;}
.step-num{
  position:relative;z-index:1;width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--border);color:var(--c-accent);
  font-weight:700;font-size:16px;font-variant-numeric:tabular-nums;
}
.step h3{font-size:18px;}
.step p{margin:0;color:var(--muted);font-size:15px;line-height:1.8;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--c-primary-dark);color:#fff;border-radius:var(--r-hero);
  padding:48px;display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:center;
  border:1px solid #0C2A27;
}
.cta-band h2{color:#fff;}
.cta-band .cta-desc{color:rgba(255,255,255,.8);margin:12px 0 0;font-size:16px;line-height:1.85;max-width:30em;}
.cta-form{display:flex;flex-direction:column;gap:12px;}
.cta-form label{font-size:14px;color:rgba(255,255,255,.86);}
.cta-form-row{display:flex;gap:12px;}
.cta-form input{
  flex:1;height:48px;min-width:0;padding:0 16px;border-radius:var(--r-sm);
  border:1px solid transparent;background:#fff;color:var(--text);font-size:16px;
  transition:box-shadow var(--t),border-color var(--t);
}
.cta-form input::placeholder{color:var(--weak);}
.cta-form input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(217,136,74,.55);}
.cta-form input.is-error{border-color:var(--warn);box-shadow:0 0 0 2px rgba(196,118,46,.35);}
.form-hint{font-size:14px;line-height:1.7;margin:0;color:rgba(255,255,255,.68);}
.form-hint.is-error{color:#F0B27A;}
.form-hint.is-ok{color:#8FD3B4;}
.cta-actions{margin-top:18px;display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-primary-dark);color:#fff;margin-top:96px;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .fb-top{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.fb-mark{width:38px;height:38px;flex:none;border-radius:12px;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.08);color:#fff;box-shadow:inset 0 0 0 1px rgba(255,255,255,.14);}
.footer-brand strong{font-size:17px;color:#fff;}
.footer-brand p{color:rgba(255,255,255,.72);font-size:15px;line-height:1.85;margin:0;max-width:30em;}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px;}
.footer-col a,.footer-col span{display:block;color:rgba(255,255,255,.72);font-size:15px;line-height:2.1;transition:color var(--t);}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:14px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{max-width:960px;}
  .cat2-grid{gap:20px;}
}
@media (max-width:991px){
  .section{padding:64px 0;}
  h1{font-size:32px;}
  h2{font-size:26px;}
  .cta-band{grid-template-columns:1fr;gap:28px;padding:36px;}
  .steps{grid-template-columns:repeat(2,1fr);gap:28px 20px;}
  .steps::before{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .row{margin-left:-8px;margin-right:-8px;}
  .columns{padding-left:8px;padding-right:8px;}
  .section{padding:48px 0;}
  body{font-size:16px;line-height:1.85;}
  h1{font-size:28px;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  .nav-toggle{display:flex;}
  .nav-cta{display:none;}
  .nav-links{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    display:none;grid-template-columns:1fr 1fr;gap:8px;padding:12px;
    background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-2);
  }
  .nav-links.is-open{display:grid;}
  .nav-card{justify-content:flex-start;background:var(--bg-alt-a);}
  .nav-card.is-active::after{display:none;}
  .drawer-cta{display:inline-flex;grid-column:1 / -1;width:100%;}
  .brand-text em{display:none;}
  .cat-hero{padding:20px 0 0;}
  .cat-hero-inner{min-height:220px;padding:32px 20px;border-radius:16px;}
  .cat-hero-desc{font-size:16px;}
  .cat-hero-meta{gap:8px 16px;font-size:13px;}
  .cat2-feature{padding:16px;}
  .cat2-feature h3{font-size:20px;}
  .cat2-grid{grid-template-columns:1fr;gap:16px;}
  .steps{grid-template-columns:1fr;}
  .cta-form-row{flex-direction:column;}
  .cta-form input,.cta-form .btn{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{margin-top:64px;padding:48px 0 24px;}
  .footer-col a,.footer-col span,.footer-bottom{font-size:14px;}
}
@media (max-width:479px){
  h1{font-size:26px;}
  .cat-hero-inner{padding:28px 16px;}
  .chip,.tag,.media-badge{white-space:nowrap;}
  .btn-row .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}