/* roulang page: index */
:root{
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --ink:#12201F;
  --ink-2:#556664;
  --line:#E4DED3;
  --primary:#14484C;
  --primary-hover:#0E3A3D;
  --accent:#FF6A3D;
  --accent-hover:#E0531F;
  --mint:#9FC7BB;
  --band:#0D2528;
  --band-line:rgba(255,255,255,.10);
  --danger:#C0392B;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(18,32,31,.06);
  --shadow-2:0 12px 28px -12px rgba(18,32,31,.20);
  --font-sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,"IBM Plex Mono",Consolas,"SFMono-Regular",monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;background:var(--bg);color:var(--ink);
  font-family:var(--font-sans);font-size:16px;line-height:1.8;font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--band{background:var(--band);color:#fff;padding:56px 0}
.section--paper{background:#FBF9F5}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head__mark{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.section-head__mark i{width:8px;height:8px;background:var(--primary);display:block}
.section-head__mark span{font-family:var(--font-mono);font-size:13px;letter-spacing:.14em;color:var(--ink-2)}
h2.section-title{font-size:28px;line-height:1.35;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.section-sub{color:var(--ink-2);font-size:15px;max-width:640px;margin-top:12px}
.text-link{
  display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-size:15px;font-weight:600;
  transition:color .18s ease;
}
.text-link .arw{transition:transform .18s ease}
.text-link:hover{color:var(--accent)}
.text-link:hover .arw{transform:translateX(4px)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1.5px solid transparent;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-ghost:hover{background:rgba(20,72,76,.08)}
.btn-ghost:active{background:rgba(20,72,76,.14)}
.btn-light{background:#fff;color:var(--primary);border-color:transparent}
.btn-light:hover{background:#F0EDE6}
.btn-sm{min-height:44px;padding:0 18px;font-size:14px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(247,245,240,.94);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid transparent;transition:border-color .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--shadow-1)}
.nav-grid{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  height:72px;column-gap:16px;
}
.nav-group{display:flex;align-items:center;gap:6px}
.nav-group--right{justify-content:flex-end}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 12px;
  font-size:15px;color:var(--ink);transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:6px;width:0;height:2px;background:var(--accent);
  transform:translateX(-50%);transition:width .18s ease;
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{width:60%}
.nav-link.is-active{color:var(--primary);font-weight:700}
.nav-link.is-active::before{
  content:"";position:absolute;left:50%;bottom:0;width:5px;height:5px;border-radius:50%;
  background:var(--primary);transform:translateX(-50%);
}
.brand{
  display:inline-flex;align-items:center;gap:10px;justify-self:center;
  font-size:19px;font-weight:700;color:var(--primary);letter-spacing:-.01em;white-space:nowrap;
}
.brand__mark{
  width:30px;height:30px;border-radius:9px;background:var(--primary);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand__mark span{width:10px;height:10px;border:2px solid var(--mint);display:block}
.nav-cta{margin-left:10px}
.nav-toggle{
  display:none;align-items:center;justify-content:center;width:44px;height:44px;
  background:transparent;border:1px solid var(--line);border-radius:var(--radius-btn);cursor:pointer;
}
.nav-toggle:hover{background:rgba(20,72,76,.06)}
.nav-toggle i{display:block;width:18px;height:2px;background:var(--primary);position:relative;transition:background-color .18s ease}
.nav-toggle i::before,.nav-toggle i::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--primary);transition:transform .18s ease;
}
.nav-toggle i::before{top:-6px}
.nav-toggle i::after{top:6px}
.mobile-drawer{
  display:none;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:var(--shadow-1);
}
.mobile-drawer.is-open{display:block}
.mobile-drawer__inner{padding:8px 0 20px}
.mobile-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 24px;font-size:17px;color:var(--ink);border-bottom:1px solid var(--line);
  transition:background-color .18s ease,color .18s ease;
}
.mobile-drawer a:hover,.mobile-drawer a:active{background:rgba(20,72,76,.06);color:var(--primary)}
.mobile-drawer a.is-active{color:var(--primary);font-weight:700}
.mobile-drawer__cta{padding:18px 24px 0}
.mobile-drawer__cta .btn{width:100%}

/* ---------- Hero ---------- */
.hero{padding:72px 0 64px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(159,199,187,.28);color:var(--primary);font-size:13px;font-weight:600;
}
.badge--line{background:transparent;border:1px solid var(--line);color:var(--ink-2);font-weight:600}
h1.hero-title{
  font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.02em;color:var(--ink);margin:20px 0 0;
}
.hero-sub{font-size:16px;line-height:1.85;color:var(--ink-2);margin-top:18px;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.trust-row{display:flex;flex-wrap:wrap;align-items:center;gap:0;margin-top:36px}
.trust-item{padding:0 22px;border-left:1px solid var(--line)}
.trust-item:first-child{padding-left:0;border-left:0}
.trust-item b{display:block;font-family:var(--font-mono);font-size:20px;font-weight:600;color:var(--primary);line-height:1.3}
.trust-item span{font-size:13px;color:var(--ink-2)}
.hero-visual{position:relative}
.hero-visual__frame{
  position:relative;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);
  aspect-ratio:4/3;background:rgba(159,199,187,.08);
}
.hero-visual__frame img{width:100%;height:100%;object-fit:cover}
.hero-float{
  position:absolute;right:-10px;bottom:-18px;background:#fff;border-radius:var(--radius-card);
  padding:16px 20px;box-shadow:var(--shadow-2);border:1px solid var(--line);min-width:168px;
}
.hero-float b{display:block;font-family:var(--font-mono);font-size:26px;color:var(--primary);line-height:1.2}
.hero-float span{font-size:13px;color:var(--ink-2)}
.hero-search{
  margin-top:64px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px;box-shadow:var(--shadow-1);
}
.hero-search form{display:flex;gap:12px;align-items:center}
.hero-search__field{flex:1 1 auto;position:relative;display:flex;align-items:center}
.hero-search__field svg{position:absolute;left:16px;width:18px;height:18px;stroke:var(--ink-2)}
.hero-search input{
  width:100%;height:52px;padding:0 16px 0 46px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:#fff;transition:border-color .18s ease,box-shadow .18s ease;
}
.hero-search input::placeholder{color:#98A6A3}
.hero-search input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(20,72,76,.12)}
.hero-search__hint{font-size:12px;color:var(--ink-2);margin-top:12px}

/* ---------- 指标带 ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.metric{padding:0 28px;border-bottom:1px solid var(--band-line);padding-bottom:20px}
.metric:first-child{padding-left:0}
.metric span.tick{display:block;width:12px;height:3px;background:var(--accent);margin-bottom:20px}
.metric b{display:block;font-family:var(--font-mono);font-size:56px;line-height:1;color:#fff;font-weight:600}
.metric em{display:block;font-style:normal;font-size:13px;color:var(--mint);margin-top:14px;line-height:1.6}

/* ---------- 内容卡片 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);height:100%;
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.post-card:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:var(--shadow-2)}
.post-card__link{display:flex;flex-direction:column;height:100%}
.post-card__media{overflow:hidden;aspect-ratio:16/9;background:rgba(159,199,187,.10);margin:16px 16px 0;border-radius:10px}
.post-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease}
.post-card:hover .post-card__media img{transform:scale(1.03)}
.post-card__body{padding:18px 24px 24px;display:flex;flex-direction:column;flex:1 1 auto}
.post-card__title{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);margin-top:12px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:51px;
}
.post-card__excerpt{
  font-size:14px;line-height:1.7;color:var(--ink-2);margin-top:10px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;min-height:71px;
}
.post-card__meta{
  display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:16px;
  border-top:1px solid var(--line);font-size:13px;color:var(--ink-2);
}
.post-card__meta .arw{color:var(--primary);transition:transform .18s ease}
.post-card:hover .post-card__meta .arw{transform:translateX(4px)}
.empty-state{
  border:1px dashed rgba(20,72,76,.40);border-radius:var(--radius-card);
  padding:48px 24px;text-align:center;background:rgba(255,255,255,.6);
}
.empty-state__icon{
  width:44px;height:44px;margin:0 auto 16px;border:1px solid rgba(20,72,76,.35);border-radius:10px;position:relative;
}
.empty-state__icon::after{content:"";position:absolute;inset:12px;border:1px solid rgba(20,72,76,.35)}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:18px}

/* ---------- 服务矩阵 ---------- */
.matrix{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.m-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;display:flex;flex-direction:column;box-shadow:var(--shadow-1);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.m-card:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:var(--shadow-2)}
.m-card--big{padding:32px}
.m-card__num{font-family:var(--font-mono);font-size:13px;color:var(--ink-2);letter-spacing:.1em}
.m-card__icon{
  width:40px;height:40px;border-radius:10px;background:rgba(159,199,187,.24);
  display:flex;align-items:center;justify-content:center;margin:18px 0 16px;
}
.m-card__icon span{width:14px;height:14px;border:2px solid var(--primary)}
.m-card h3{font-size:20px;font-weight:600;line-height:1.4;color:var(--ink)}
.m-card p{font-size:15px;line-height:1.8;color:var(--ink-2);margin-top:12px}
.m-card__foot{margin-top:auto;padding-top:20px}
.col-7{grid-column:span 7}
.col-5{grid-column:span 5}
.col-4{grid-column:span 4}
.offset-down{margin-top:24px}

/* ---------- 对比区 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare__col{border-radius:var(--radius-card);padding:28px;border:1px solid var(--line)}
.compare__col--before{background:#EFEDE7;color:var(--ink-2)}
.compare__col--after{background:var(--surface);border-color:var(--primary);box-shadow:var(--shadow-1)}
.compare__title{font-size:18px;font-weight:600;margin-bottom:8px}
.compare__col--before .compare__title{color:var(--ink-2)}
.compare__col--after .compare__title{color:var(--primary)}
.compare__desc{font-size:14px;line-height:1.7;margin-bottom:20px}
.compare__row{padding:16px 0;border-bottom:1px solid var(--line)}
.compare__col--before .compare__row{border-bottom-color:#DDD8CE}
.compare__row:last-child{border-bottom:0;padding-bottom:0}
.compare__row strong{display:block;font-size:15px;font-weight:600;margin-bottom:6px}
.compare__col--before .compare__row strong{color:var(--ink-2)}
.compare__row p{font-size:14px;line-height:1.7}
.compare__scale{display:flex;align-items:center;gap:10px;margin-top:12px}
.compare__bar{flex:1 1 auto;height:4px;background:rgba(20,72,76,.12);border-radius:999px;overflow:hidden}
.compare__bar i{display:block;height:100%;background:var(--accent);border-radius:999px}
.compare__val{font-family:var(--font-mono);font-size:13px;color:var(--primary);min-width:38px;text-align:right}

/* ---------- 分类导航 ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.cat-item{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);transition:background-color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.cat-item:hover{background:rgba(20,72,76,.06);border-color:var(--primary);transform:translateY(-4px);box-shadow:var(--shadow-2)}
.cat-item__num{font-family:var(--font-mono);font-size:13px;color:var(--accent);letter-spacing:.1em}
.cat-item h3{font-size:18px;font-weight:600;margin-top:14px;color:var(--ink)}
.cat-item p{font-size:14px;line-height:1.7;color:var(--ink-2);margin-top:10px;min-height:48px}
.cat-item__more{display:flex;align-items:center;gap:8px;margin-top:18px;font-size:14px;font-weight:600;color:var(--primary)}
.cat-item:hover .cat-item__more .arw{transform:translateX(4px)}
.cat-item__more .arw{transition:transform .18s ease}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0 22px 0;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);position:relative;
  transition:color .18s ease,padding-left .2s ease;
}
.faq-q:hover{color:var(--primary)}
.faq-q::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:3px;background:var(--accent);
  opacity:0;transition:opacity .2s ease;
}
.faq-item.is-open .faq-q::before{opacity:1}
.faq-item.is-open .faq-q{padding-left:16px;color:var(--primary)}
.faq-q .chev{flex:0 0 auto;width:20px;height:20px;position:relative;transition:transform .22s ease}
.faq-q .chev::before,.faq-q .chev::after{
  content:"";position:absolute;background:var(--primary);transition:opacity .2s ease;
}
.faq-q .chev::before{left:0;top:9px;width:20px;height:2px}
.faq-q .chev::after{left:9px;top:0;width:2px;height:20px}
.faq-item.is-open .faq-q .chev{transform:rotate(180deg)}
.faq-item.is-open .faq-q .chev::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-a__inner{padding:0 0 24px;font-size:15px;line-height:1.8;color:var(--ink-2);max-width:820px}
.faq-item.is-open .faq-q{padding-left:16px}

/* ---------- 表单 ---------- */
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.form-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:32px;box-shadow:var(--shadow-1)}
.form-row{margin-bottom:20px}
.form-row label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.form-row input,.form-row select,.form-row textarea{
  width:100%;min-height:48px;padding:12px 14px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-btn);transition:border-color .18s ease,box-shadow .18s ease;
}
.form-row textarea{min-height:112px;resize:vertical;line-height:1.7}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(20,72,76,.12);
}
.form-row input.is-error,.form-row textarea.is-error{border-color:var(--danger)}
.form-note{font-size:12px;color:var(--ink-2);margin-top:14px;line-height:1.7}
.info-card{
  background:var(--surface);border:1px solid var(--primary);border-radius:var(--radius-card);
  padding:20px 22px;margin-top:24px;
}
.info-card b{display:block;font-family:var(--font-mono);font-size:24px;color:var(--primary);line-height:1.2}
.info-card span{font-size:13px;color:var(--ink-2)}
.info-card hr{border:0;border-top:1px solid var(--line);margin:16px 0}
.check-list li{
  position:relative;padding-left:20px;font-size:15px;line-height:1.8;color:var(--ink-2);margin-bottom:12px;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;background:var(--primary);
}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--primary);color:#fff;border-radius:var(--radius-card);
  padding:40px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:24px;font-weight:700;line-height:1.4;color:#fff}
.cta-band p{font-size:15px;color:rgba(255,255,255,.78);margin-top:10px;max-width:640px;line-height:1.8}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--band);color:#fff;padding:72px 0 0;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:0}
.footer-col{padding:0 28px;border-left:1px solid var(--band-line)}
.footer-col:first-child{padding-left:0;border-left:0}
.footer-col h3{font-size:14px;color:var(--mint);font-weight:600;margin-bottom:18px;letter-spacing:.02em}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-brand__mark{width:26px;height:26px;border-radius:8px;background:var(--accent);display:flex;align-items:center;justify-content:center}
.footer-brand__mark span{width:9px;height:9px;border:2px solid #fff;display:block}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72)}
.footer-col li{margin-bottom:4px}
.footer-col a{
  display:inline-block;font-size:14px;color:rgba(255,255,255,.80);padding:6px 0;
  border-bottom:2px solid transparent;transition:color .18s ease,border-color .18s ease;
}
.footer-col a:hover{color:#fff;border-bottom-color:var(--accent)}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--band-line);padding:24px 0;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.footer-bottom p,.footer-bottom a{font-size:13px;color:rgba(255,255,255,.62)}
.footer-bottom__links{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom__links a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:1100px}
}
@media (max-width:1023px){
  .nav-group{display:none}
  .nav-toggle{display:inline-flex}
  .nav-grid{grid-template-columns:auto 1fr auto;height:64px}
  .nav-grid .brand{justify-self:center}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{order:2}
  .hero-float{right:12px;bottom:-16px}
  .metrics{grid-template-columns:repeat(2,1fr);gap:32px 0}
  .metric{padding:0 24px 18px}
  .metric:nth-child(odd){padding-left:0}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .matrix{grid-template-columns:repeat(2,1fr)}
  .col-7,.col-5,.col-4{grid-column:span 1}
  .offset-down{margin-top:0}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:40px 0}
  .footer-col:nth-child(3){padding-left:0;border-left:0}
}
@media (max-width:767px){
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .compare{grid-template-columns:1fr}
  .post-grid{grid-template-columns:1fr}
  .cat-grid{grid-template-columns:1fr}
  h2.section-title{font-size:24px}
}
@media (max-width:639px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  h1.hero-title{font-size:28px}
  .hero{padding:48px 0 48px}
  .hero-actions .btn{width:100%}
  .hero-search form{flex-direction:column;align-items:stretch}
  .hero-search .btn{width:100%}
  .metrics{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .metric b{font-size:36px}
  .metric{padding:0 16px 16px}
  .matrix{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-col{padding:0;border-left:0}
  .cta-band{padding:28px;flex-direction:column;align-items:flex-start}
  .form-panel{padding:24px}
  .trust-item{padding:0 14px}
  .compare__col{padding:22px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --ink:#12201F;
  --ink-2:#556664;
  --line:#E4DED3;
  --primary:#14484C;
  --primary-hover:#0E3A3D;
  --accent:#FF6A3D;
  --accent-hover:#E0531F;
  --mint:#9FC7BB;
  --band:#0D2528;
  --band-line:rgba(255,255,255,.10);
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(18,32,31,.06);
  --shadow-2:0 12px 28px -12px rgba(18,32,31,.20);
  --font-sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"IBM Plex Mono",Consolas,"Courier New",monospace;
}
*{box-sizing:border-box;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--shadow-1);background:rgba(247,245,240,.97);}
.header-inner{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  min-height:72px;gap:16px;
}
.nav-group{display:flex;align-items:center;gap:26px;}
.nav-group--right{justify-content:flex-end;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;
  font-size:15px;color:var(--ink-2);transition:color .18s ease;
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:6px;height:2px;width:0;
  background:var(--accent);transform:translateX(-50%);
  transition:width .18s ease;
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after{width:60%;}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.nav-link.is-active::before{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:5px;height:5px;border-radius:50%;background:var(--primary);
}
.brand{display:inline-flex;align-items:center;gap:10px;justify-self:center;}
.brand__mark{
  position:relative;width:26px;height:26px;border-radius:7px;
  background:var(--primary);display:inline-flex;align-items:center;justify-content:center;
  flex:0 0 auto;
}
.brand__mark span{
  width:10px;height:10px;border:2px solid var(--mint);border-radius:2px;display:block;
}
.brand__mark::after{
  content:"";position:absolute;right:4px;bottom:4px;width:6px;height:6px;
  background:var(--accent);border-radius:1px;
}
.brand__text{font-size:19px;font-weight:700;letter-spacing:.02em;color:var(--ink);}
.brand__sub{display:block;font-size:11px;font-weight:400;color:var(--ink-2);letter-spacing:.14em;line-height:1;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1.5px solid transparent;
  transition:background-color .18s ease, color .18s ease, border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}
.btn--primary{background:var(--accent);color:#fff;box-shadow:var(--shadow-1);}
.btn--primary:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn--primary:active{transform:translateY(0);}
.btn--ghost{background:transparent;border-color:var(--primary);color:var(--primary);}
.btn--ghost:hover{background:rgba(20,72,76,.08);}
.btn--sm{min-height:40px;padding:0 16px;font-size:14px;}
.btn--block{width:100%;}
.arrow-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);
  transition:color .18s ease;
}
.arrow-link svg{transition:transform .18s ease;}
.arrow-link:hover{color:var(--accent);}
.arrow-link:hover svg{transform:translateX(4px);}

.menu-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:var(--radius-btn);
  cursor:pointer;color:var(--ink);
}
.menu-toggle:hover{border-color:var(--primary);color:var(--primary);}
.header-cta-mobile{display:none;}

.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:var(--bg);
  box-shadow:var(--shadow-2);
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer__inner{padding:8px 0 20px;}
.mobile-drawer a.mobile-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;font-size:17px;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a.mobile-link:hover{color:var(--primary);}
.mobile-drawer .mobile-cta{margin-top:18px;}

/* ---------- Article hero ---------- */
.article-hero{
  position:relative;background:var(--surface);border-bottom:1px solid var(--line);
  padding:34px 0 40px;
}
.article-hero::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--primary);
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-2);margin-bottom:16px;
}
.breadcrumb a{color:var(--ink-2);transition:color .18s ease;}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:#B9C2C0;}
.breadcrumb .current{color:var(--ink);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-title{
  margin:0 0 18px;font-size:36px;line-height:1.3;font-weight:700;color:var(--ink);
  letter-spacing:.01em;max-width:900px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  font-size:13px;color:var(--ink-2);
}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:rgba(159,199,187,.30);color:var(--primary);font-size:13px;font-weight:600;
}
.meta-dot{width:1px;height:14px;background:var(--line);display:inline-block;}

/* ---------- Layout ---------- */
.layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;
  padding:56px 0 96px;align-items:start;
}
.article-main{min-width:0;}

/* ---------- Article body ---------- */
.article-body{
  font-size:17px;line-height:1.9;color:var(--ink-2);
  word-break:break-word;
}
.article-body p{margin:0 0 20px;}
.article-body h2{
  font-size:20px;line-height:1.5;font-weight:700;color:var(--ink);
  margin:40px 0 16px;padding-left:12px;border-left:4px solid var(--primary);
  scroll-margin-top:96px;
}
.article-body h3{
  font-size:18px;line-height:1.5;font-weight:600;color:var(--ink);
  margin:28px 0 12px;scroll-margin-top:96px;
}
.article-body h4{font-size:16px;font-weight:600;color:var(--ink);margin:22px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:0;list-style:none;}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:10px;}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;
  background:var(--primary);border-radius:2px;
}
.article-body ol{counter-reset:item;}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:12px;counter-increment:item;}
.article-body ol li::before{
  content:counter(item,decimal-leading-zero);
  position:absolute;left:0;top:0;font-family:var(--font-mono);font-size:13px;
  color:var(--primary);font-weight:600;line-height:2.4;
}
.article-body blockquote{
  margin:24px 0;padding:20px;background:#EAF2EF;border-left:3px solid var(--accent);
  border-radius:0 10px 10px 0;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  max-width:100%;height:auto;margin:24px auto;border-radius:var(--radius-img);
  border:1px solid var(--line);
}
.article-body figure{margin:24px 0;}
.article-body figcaption{
  font-size:13px;color:var(--ink-2);text-align:center;margin-top:10px;
}
.article-body a{
  color:var(--primary);text-decoration:underline;text-underline-offset:3px;
  text-decoration-thickness:1px;transition:color .18s ease;
}
.article-body a:hover{color:var(--accent);}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;display:block;overflow-x:auto;
  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:rgba(159,199,187,.22);color:var(--primary);font-weight:600;}
.article-body pre{
  overflow-x:auto;background:var(--band);color:#EAF2EF;padding:16px 18px;
  border-radius:10px;font-family:var(--font-mono);font-size:14px;line-height:1.7;margin:24px 0;
}
.article-body code{font-family:var(--font-mono);font-size:.94em;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0;}

.lead-block{
  background:#F1EEE7;border-left:3px solid var(--primary);border-radius:0 10px 10px 0;
  padding:14px 18px;font-size:15px;line-height:1.85;color:var(--ink-2);margin-bottom:28px;
}

/* ---------- Empty state ---------- */
.empty-state{
  border:1px dashed rgba(20,72,76,.40);border-radius:var(--radius-card);
  padding:48px 24px;text-align:center;background:var(--surface);
}
.empty-state__icon{
  width:44px;height:44px;margin:0 auto 16px;border-radius:10px;
  border:2px solid rgba(20,72,76,.35);position:relative;
}
.empty-state__icon::after{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:16px;height:2px;background:rgba(20,72,76,.45);
}
.empty-state p{font-size:15px;color:var(--ink-2);margin:0 0 18px;}

/* ---------- Sidebar ---------- */
.sidebar{display:flex;flex-direction:column;gap:24px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-1);
}
.side-card--accent{border-color:var(--primary);}
.side-title{
  font-size:14px;font-weight:600;color:var(--primary);letter-spacing:.06em;
  margin:0 0 14px;display:flex;align-items:center;gap:8px;
}
.side-title::before{
  content:"";width:8px;height:8px;background:var(--primary);border-radius:2px;display:inline-block;
}
.toc{position:sticky;top:96px;}
.toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:block;font-size:14px;line-height:1.6;color:var(--ink-2);
  padding:7px 10px;border-left:2px solid transparent;border-radius:0 6px 6px 0;
  transition:color .18s ease,border-color .18s ease,background .18s ease;
  overflow:hidden;text-overflow:ellipsis;
}
.toc-list a:hover{color:var(--primary);border-left-color:var(--accent);background:rgba(20,72,76,.05);}
.toc-list a.is-current{color:var(--primary);font-weight:600;border-left-color:var(--primary);}
.toc-empty{font-size:13px;color:var(--ink-2);margin:0;}
.side-card p{font-size:14px;line-height:1.75;color:var(--ink-2);margin:0 0 16px;}
.side-metric{
  display:flex;align-items:baseline;gap:8px;padding:12px 0;border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:13px;color:var(--ink-2);
}
.side-metric strong{font-size:22px;color:var(--primary);font-weight:700;}

/* ---------- Footer of article ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:48px 0 0;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line);background:var(--surface);font-size:13px;color:var(--ink-2);
  transition:border-color .18s ease,color .18s ease;
}
.tag:hover{border-color:var(--primary);color:var(--primary);}

.pager{
  display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:36px 0 0;
}
.pager-item{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px 20px;transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.pager-item:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:var(--shadow-2);}
.pager-item span{display:block;font-size:13px;color:var(--ink-2);margin-bottom:6px;}
.pager-item strong{
  display:block;font-size:15px;font-weight:600;color:var(--ink);line-height:1.6;
  overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
}
.pager-item--next{text-align:right;}

.related{margin-top:56px;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;
}
.section-head h2{
  font-size:22px;font-weight:700;color:var(--ink);margin:0;line-height:1.4;
  display:flex;align-items:center;gap:10px;
}
.section-head h2::before{
  content:"";width:8px;height:8px;background:var(--primary);border-radius:2px;display:inline-block;
}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-1);
  transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.card:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:var(--shadow-2);}
.card__thumb{
  overflow:hidden;border-radius:10px;margin-bottom:16px;aspect-ratio:16/9;background:rgba(159,199,187,.14);
}
.card__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease;}
.card:hover .card__thumb img{transform:scale(1.03);}
.card__title{
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.55;margin:0 0 10px;
  overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
}
.card__desc{
  font-size:14px;line-height:1.7;color:var(--ink-2);margin:0 0 18px;
  overflow:hidden;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;
}
.card__foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid var(--line);padding-top:14px;
}
.card__date{font-family:var(--font-mono);font-size:13px;color:var(--ink-2);}
.back-cat{margin-top:32px;}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--primary);color:#fff;border-radius:var(--radius-card);
  padding:40px;display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;
  margin:0 0 96px;
}
.cta-band h2{font-size:24px;font-weight:700;color:#fff;margin:0 0 10px;line-height:1.4;}
.cta-band p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.82);margin:0;max-width:640px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--band);color:rgba(255,255,255,.80);padding:64px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:0;
}
.footer-col{padding:0 28px;border-left:1px solid var(--band-line);}
.footer-col:first-child{padding-left:0;border-left:none;}
.footer-col:last-child{padding-right:0;}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;
  color:#fff;margin-bottom:16px;
}
.footer-brand__mark{
  position:relative;width:24px;height:24px;border-radius:6px;background:var(--mint);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.footer-brand__mark span{width:9px;height:9px;border:2px solid var(--band);border-radius:2px;display:block;}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);margin:0;}
.footer-col h3{
  font-size:14px;font-weight:600;color:var(--mint);margin:0 0 16px;letter-spacing:.04em;
}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;}
.footer-col ul a{
  display:inline-block;font-size:14px;line-height:1.6;padding:7px 0;color:rgba(255,255,255,.80);
  border-bottom:2px solid transparent;transition:color .18s ease,border-color .18s ease;
}
.footer-col ul a:hover{color:#fff;border-bottom-color:var(--accent);}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--band-line);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.60);margin:0;font-family:var(--font-mono);}
.footer-bottom__links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom__links a{
  font-size:13px;color:rgba(255,255,255,.70);border-bottom:2px solid transparent;padding-bottom:2px;
  transition:color .18s ease,border-color .18s ease;
}
.footer-bottom__links a:hover{color:#fff;border-bottom-color:var(--accent);}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .nav-group{display:none;}
  .header-inner{grid-template-columns:44px 1fr auto;min-height:64px;}
  .menu-toggle{display:inline-flex;}
  .header-cta-mobile{
    display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;
    border-radius:var(--radius-btn);background:var(--accent);color:#fff;
  }
  .header-cta-mobile:hover{background:var(--accent-hover);}
  .layout{grid-template-columns:minmax(0,1fr);gap:40px;padding:40px 0 72px;}
  .sidebar{order:2;}
  .toc{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-col{padding:24px 20px;border-left:none;border-top:1px solid var(--band-line);}
  .footer-col:first-child{padding-left:20px;}
  .footer-col:nth-child(odd){border-right:1px solid var(--band-line);}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{grid-template-columns:1fr;padding:32px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .article-hero{padding:24px 0 30px;}
  .article-title{font-size:26px;}
  .article-body{font-size:17px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .pager{grid-template-columns:minmax(0,1fr);}
  .pager-item--next{text-align:left;}
  .section-head{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-col{border-right:none !important;padding:20px 0;}
  .cta-band{padding:26px 22px;margin-bottom:72px;}
  .cta-band h2{font-size:20px;}
  .cta-band .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category1 */
:root{
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --ink:#12201F;
  --ink-2:#556664;
  --line:#E4DED3;
  --primary:#14484C;
  --primary-hover:#0E3A3D;
  --accent:#FF6A3D;
  --accent-hover:#E0531F;
  --mint:#9FC7BB;
  --band:#0D2528;
  --band-line:rgba(255,255,255,.10);
  --danger:#C0392B;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(18,32,31,.06);
  --shadow-2:0 12px 28px -12px rgba(18,32,31,.20);
  --font-sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"IBM Plex Mono",Consolas,"Courier New",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(247,245,240,.94);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-1);
  background:rgba(247,245,240,.98);
}
.nav-desktop{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  height:72px;
  gap:16px;
}
.nav-group{display:flex;align-items:center;gap:26px;}
.nav-group--left{justify-self:start;}
.nav-group--right{justify-self:end;}
.nav-link{
  position:relative;
  font-size:15px;
  line-height:72px;
  color:var(--ink);
  padding:0 2px;
  display:inline-flex;
  align-items:center;
  height:72px;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:16px;
  width:0;
  height:2px;
  background:var(--accent);
  transform:translateX(-50%);
  transition:width .2s ease;
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after{width:60%;}
.nav-link.is-active{color:var(--primary);font-weight:700;}
.nav-link.is-active::before{
  content:"";
  position:absolute;
  left:50%;
  bottom:6px;
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--primary);
  transform:translateX(-50%);
}
.nav-link.is-active::after{width:0;}
.brand{
  justify-self:center;
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:700;
  letter-spacing:.01em;
  color:var(--ink);
}
.brand__mark{
  width:26px;height:26px;
  border-radius:8px;
  background:var(--primary);
  display:grid;
  place-items:center;
  position:relative;
  flex:0 0 auto;
}
.brand__mark::before{
  content:"";
  width:10px;height:10px;
  background:var(--accent);
  border-radius:2px;
}
.brand:hover .brand__mark{background:var(--primary-hover);}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:40px;
  padding:0 18px;
  border-radius:var(--radius-btn);
  background:var(--accent);
  color:#fff;
  font-size:14px;
  font-weight:600;
  border:1px solid var(--accent);
  transition:background-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.nav-cta:hover{background:var(--accent-hover);border-color:var(--accent-hover);transform:translateY(-1px);box-shadow:var(--shadow-1);}
.nav-cta:active{transform:translateY(0);}

.nav-mobile{display:none;align-items:center;justify-content:space-between;height:64px;gap:12px;}
.hamburger{
  width:44px;height:44px;
  border:1px solid var(--line);
  background:var(--surface);
  border-radius:10px;
  display:grid;
  place-items:center;
  cursor:pointer;
  transition:border-color .18s ease,background-color .18s ease;
}
.hamburger:hover{border-color:var(--primary);background:rgba(20,72,76,.06);}
.hamburger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease;
}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}
.icon-cta{
  width:44px;height:44px;border-radius:10px;background:var(--accent);color:#fff;
  display:grid;place-items:center;font-size:18px;font-weight:700;
  transition:background-color .18s ease,transform .18s ease;
}
.icon-cta:hover{background:var(--accent-hover);transform:translateY(-1px);}
.drawer{
  display:none;
  border-top:1px solid var(--line);
  background:var(--surface);
  padding:8px 0 20px;
}
.drawer.is-open{display:block;}
.drawer a{
  display:block;
  padding:14px 24px;
  font-size:17px;
  border-bottom:1px solid var(--line);
  min-height:44px;
}
.drawer a:hover{color:var(--primary);background:rgba(20,72,76,.04);}
.drawer a.is-active{color:var(--primary);font-weight:700;}
.drawer .drawer-cta{
  margin:18px 24px 0;
  display:flex;
  align-items:center;
  justify-content:center;
  height:48px;
  border-radius:var(--radius-btn);
  background:var(--accent);
  color:#fff;
  font-weight:600;
  border-bottom:none;
}
.drawer .drawer-cta:hover{background:var(--accent-hover);color:#fff;}

/* ============ 通用组件 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn--primary{background:var(--accent);color:#fff;border-color:var(--accent);}
.btn--primary:hover{background:var(--accent-hover);border-color:var(--accent-hover);transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn--primary:active{transform:translateY(0);}
.btn--ghost{background:transparent;color:var(--primary);border:1.5px solid var(--primary);}
.btn--ghost:hover{background:rgba(20,72,76,.08);}
.btn--ghost:active{background:rgba(20,72,76,.14);}
.btn--sm{height:40px;padding:0 16px;font-size:14px;}
.arrow-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
}
.arrow-link .arw{transition:transform .18s ease;display:inline-block;}
.arrow-link:hover{color:var(--accent);}
.arrow-link:hover .arw{transform:translateX(4px);}

.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:28px;
  padding:0 12px;
  border-radius:999px;
  background:rgba(159,199,187,.28);
  color:var(--primary);
  font-size:13px;
  font-weight:600;
}
.badge--line{background:transparent;border:1px solid var(--line);color:var(--ink-2);}

.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.section-head__title{position:relative;padding-left:18px;}
.section-head__title::before{
  content:"";
  position:absolute;
  left:0;top:8px;
  width:8px;height:8px;
  background:var(--primary);
  border-radius:2px;
}
.section-head h2{
  font-size:28px;
  line-height:1.35;
  font-weight:700;
  color:var(--ink);
}
.section-head p{margin-top:8px;font-size:14px;color:var(--ink-2);}
.num-index{
  font-family:var(--font-mono);
  font-size:13px;
  color:var(--ink-2);
  letter-spacing:.08em;
}

/* ============ 面包屑 + 窄版 Hero ============ */
.crumbs{
  font-size:13px;
  color:var(--ink-2);
  padding:20px 0 0;
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  align-items:center;
}
.crumbs a{color:var(--ink-2);}
.crumbs a:hover{color:var(--primary);}
.crumbs .sep{color:var(--line);}
.crumbs .now{color:var(--ink);font-weight:600;}

.page-hero{
  padding:16px 0 0;
}
.page-hero__grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:40px;
  align-items:center;
  padding:32px 0 56px;
  border-bottom:1px solid var(--line);
}
.page-hero h1{
  font-size:40px;
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--ink);
  margin-top:16px;
}
.page-hero__sub{
  margin-top:16px;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-2);
  max-width:620px;
}
.page-hero__actions{margin-top:28px;display:flex;gap:12px;flex-wrap:wrap;}
.page-hero__media{position:relative;}
.page-hero__media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--radius-img);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
.ticks{
  display:flex;
  align-items:flex-end;
  gap:7px;
  height:26px;
  margin-top:16px;
  padding-left:2px;
}
.ticks i{display:block;width:2px;background:var(--line);height:8px;border-radius:1px;}
.ticks i:nth-child(2n){height:16px;background:var(--mint);}
.ticks i:nth-child(3n){height:11px;}
.ticks i.accent{background:var(--accent);height:22px;}

/* ============ 简介区 ============ */
.lead-block{
  max-width:720px;
  border-left:3px solid var(--primary);
  padding:4px 0 4px 20px;
}
.lead-block p{color:var(--ink-2);font-size:16px;}
.lead-block p + p{margin-top:18px;}

/* ============ 交替图文流 5:7 ============ */
.split{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:40px;
  align-items:center;
  padding:40px 0;
  border-top:1px solid var(--line);
}
.split:first-of-type{border-top:none;padding-top:8px;}
.split--reverse{grid-template-columns:7fr 5fr;}
.split--reverse .split__media{order:2;}
.split--reverse .split__text{order:1;}
.split__media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--radius-img);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.split__media{overflow:hidden;border-radius:var(--radius-img);}
.split__media:hover img{transform:scale(1.02);box-shadow:var(--shadow-2);}
.split__no{
  font-family:var(--font-mono);
  font-size:48px;
  line-height:1;
  color:rgba(20,72,76,.12);
  font-weight:700;
  letter-spacing:-.02em;
}
.split__text h3{
  font-size:20px;
  line-height:1.4;
  font-weight:600;
  color:var(--ink);
  margin-top:12px;
}
.split__text p{
  margin-top:14px;
  color:var(--ink-2);
  font-size:16px;
  line-height:1.8;
  max-width:560px;
}
.tag-row{margin-top:18px;display:flex;gap:10px;flex-wrap:wrap;}

/* ============ 核对要点 ============ */
.check-panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:32px;
  box-shadow:var(--shadow-1);
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:32px;
  align-items:start;
}
.check-panel__side h2{
  font-size:28px;
  line-height:1.35;
  font-weight:700;
  color:var(--ink);
}
.check-panel__side p{margin-top:12px;color:var(--ink-2);font-size:15px;}
.check-list li{
  display:flex;
  gap:14px;
  padding:16px 0;
  border-bottom:1px solid var(--line);
  align-items:flex-start;
}
.check-list li:first-child{padding-top:0;}
.check-list li:last-child{border-bottom:none;padding-bottom:0;}
.check-list .idx{
  font-family:var(--font-mono);
  font-size:13px;
  color:var(--primary);
  background:rgba(159,199,187,.24);
  border-radius:6px;
  padding:2px 8px;
  flex:0 0 auto;
  margin-top:3px;
}
.check-list .txt strong{display:block;font-size:16px;font-weight:600;color:var(--ink);}
.check-list .txt span{display:block;margin-top:4px;font-size:14px;color:var(--ink-2);line-height:1.75;}

/* ============ FAQ ============ */
.faq{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  background:none;
  border:none;
  text-align:left;
  padding:22px 0 22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  cursor:pointer;
  position:relative;
  min-height:44px;
  transition:color .18s ease,padding-left .22s ease;
}
.faq-q::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:0;
  height:22px;
  background:var(--accent);
  transition:width .22s ease;
}
.faq-q:hover{color:var(--primary);}
.faq-item.is-open .faq-q{padding-left:14px;}
.faq-item.is-open .faq-q::before{width:3px;}
.faq-q .chev{
  flex:0 0 auto;
  width:20px;height:20px;
  position:relative;
  transition:transform .22s ease;
}
.faq-q .chev::before,.faq-q .chev::after{
  content:"";position:absolute;background:var(--primary);border-radius:1px;
}
.faq-q .chev::before{left:0;top:9px;width:20px;height:2px;}
.faq-q .chev::after{left:9px;top:0;width:2px;height:20px;transition:opacity .22s ease;}
.faq-item.is-open .faq-q .chev{transform:rotate(180deg);}
.faq-item.is-open .faq-q .chev::after{opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .22s ease;
}
.faq-a__inner{
  padding:0 0 22px 0;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-2);
  max-width:820px;
  padding-top:12px;
}

/* ============ 交叉分类 ============ */
.cross-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.cross-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px;
  display:flex;
  flex-direction:column;
  gap:12px;
  min-height:190px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.cross-card:hover{
  transform:translateY(-4px);
  border-color:var(--primary);
  box-shadow:var(--shadow-2);
}
.cross-card .num{
  font-family:var(--font-mono);
  font-size:13px;
  color:var(--ink-2);
  letter-spacing:.08em;
}
.cross-card h3{font-size:18px;font-weight:600;color:var(--ink);line-height:1.4;}
.cross-card p{font-size:14px;line-height:1.7;color:var(--ink-2);flex:1;}
.cross-card .arrow-link{margin-top:4px;}

/* ============ CTA 条 ============ */
.cta-band{
  background:var(--primary);
  color:#fff;
  border-radius:var(--radius-card);
  padding:48px;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:32px;
  align-items:center;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-40px;top:-40px;
  width:200px;height:200px;
  border:1px solid rgba(255,255,255,.10);
  border-radius:50%;
}
.cta-band h2{font-size:28px;line-height:1.35;font-weight:700;color:#fff;}
.cta-band p{margin-top:12px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.78);max-width:560px;}
.cta-band__action{display:flex;justify-content:flex-end;gap:12px;flex-wrap:wrap;}
.cta-band .btn--ghost{color:#fff;border-color:rgba(255,255,255,.45);}
.cta-band .btn--ghost:hover{background:rgba(255,255,255,.12);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--band);
  color:rgba(255,255,255,.8);
  margin-top:96px;
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:0;
}
.footer-col{padding:0 28px;}
.footer-col:first-child{padding-left:0;}
.footer-col:last-child{padding-right:0;}
.footer-col + .footer-col{border-left:1px solid var(--band-line);}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:700;
  color:#fff;
}
.footer-brand__mark{
  width:24px;height:24px;border-radius:7px;background:rgba(255,255,255,.12);
  display:grid;place-items:center;flex:0 0 auto;
}
.footer-brand__mark span{width:9px;height:9px;background:var(--accent);border-radius:2px;display:block;}
.footer-brand:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:2px;text-underline-offset:4px;}
.footer-col p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);max-width:320px;}
.footer-col h3{
  font-size:14px;
  font-weight:600;
  color:var(--mint);
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col ul li + li{margin-top:10px;}
.footer-col ul a{
  font-size:14px;
  color:rgba(255,255,255,.8);
  display:inline-block;
  min-height:24px;
  transition:color .18s ease,text-decoration-color .18s ease;
}
.footer-col ul a:hover{
  color:#fff;
  text-decoration:underline;
  text-decoration-color:var(--accent);
  text-decoration-thickness:2px;
  text-underline-offset:4px;
}
.footer-bottom{
  margin-top:56px;
  border-top:1px solid var(--band-line);
  padding:22px 0 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.6);font-family:var(--font-mono);}
.footer-bottom__links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom__links a{font-size:13px;color:rgba(255,255,255,.7);}
.footer-bottom__links a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:2px;text-underline-offset:4px;}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-desktop{display:none;}
  .nav-mobile{display:flex;}
  .page-hero__grid{grid-template-columns:1fr;gap:32px;padding:24px 0 48px;}
  .page-hero h1{font-size:32px;}
  .split,.split--reverse{grid-template-columns:1fr;gap:24px;padding:32px 0;}
  .split--reverse .split__media{order:0;}
  .split--reverse .split__text{order:0;}
  .check-panel{grid-template-columns:1fr;gap:24px;}
  .cta-band{grid-template-columns:1fr;padding:36px;gap:24px;}
  .cta-band__action{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 0;}
  .footer-col{padding:0 24px;}
  .footer-col:first-child{padding-left:0;}
  .footer-col:nth-child(3){border-left:none;padding-left:0;}
  .footer-col:nth-child(2){border-left:1px solid var(--band-line);}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;}
  .section-head h2{font-size:24px;}
  .page-hero h1{font-size:28px;}
  .cross-grid{grid-template-columns:1fr;}
  .cta-band{padding:28px;}
  .cta-band h2{font-size:22px;}
  .site-footer{margin-top:72px;padding-top:48px;}
  .footer-grid{grid-template-columns:1fr;gap:0;}
  .footer-col{padding:22px 0;}
  .footer-col + .footer-col{border-left:none;border-top:1px solid var(--band-line);}
  .footer-col:first-child{padding-top:0;}
  .footer-col p{max-width:none;}
}
@media (max-width:520px){
  .page-hero h1{font-size:28px;}
  .split__no{font-size:36px;}
  .btn{width:100%;}
  .page-hero__actions{flex-direction:column;}
  .check-panel{padding:22px;}
  .cta-band__action .btn{width:100%;}
  .nav-cta{display:none;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
    --bg:#F7F5F0; --surface:#FFFFFF; --ink:#12201F; --ink-2:#556664; --line:#E4DED3;
    --primary:#14484C; --primary-hover:#0E3A3D; --accent:#FF6A3D; --accent-hover:#E0531F;
    --mint:#9FC7BB; --band:#0D2528; --band-line:rgba(255,255,255,.10);
    --radius-card:14px; --radius-btn:10px; --radius-img:12px;
    --shadow-1:0 1px 2px rgba(18,32,31,.06);
    --shadow-2:0 12px 28px -12px rgba(18,32,31,.20);
    --font-sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    --font-mono:ui-monospace,"IBM Plex Mono","SFMono-Regular",Consolas,monospace;
    --error:#C0392B;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;background:var(--bg);color:var(--ink);
    font-family:var(--font-sans);font-size:16px;line-height:1.8;
    -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  }
  img{max-width:100%;display:block;height:auto}
  a{color:inherit;text-decoration:none}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.01em}
  p{margin:0 0 18px}
  p:last-child{margin-bottom:0}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
  .mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}

  /* ---------- header ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;background:rgba(247,245,240,.94);
    backdrop-filter:saturate(160%) blur(8px);border-bottom:1px solid transparent;
    transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
  }
  .site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--shadow-1);background:rgba(247,245,240,.98)}
  .nav-bar{
    display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
    gap:20px;min-height:72px;
  }
  .nav-group{display:flex;align-items:center;gap:26px}
  .nav-group--right{justify-content:flex-end}
  .nav-link{position:relative;font-size:15px;color:var(--ink-2);padding:6px 2px;transition:color .18s ease;white-space:nowrap}
  .nav-link::after{
    content:"";position:absolute;left:20%;right:20%;bottom:-2px;height:2px;border-radius:2px;
    background:var(--accent);transform:scaleX(0);transform-origin:center;transition:transform .2s ease;
  }
  .nav-link:hover{color:var(--primary)}
  .nav-link:hover::after{transform:scaleX(1)}
  .nav-link.is-active{color:var(--primary);font-weight:700}
  .nav-link.is-active::after{transform:scaleX(1);background:var(--primary)}
  .nav-link.is-active::before{
    content:"";position:absolute;left:50%;bottom:-11px;width:5px;height:5px;margin-left:-2.5px;
    border-radius:50%;background:var(--primary);
  }
  .brand{display:inline-flex;align-items:center;gap:10px;justify-self:center}
  .brand__mark{display:grid;grid-template-columns:8px 8px;grid-template-rows:8px 8px;gap:3px;flex:0 0 auto}
  .brand__mark span{background:var(--primary);border-radius:2px;display:block}
  .brand__mark span:nth-child(2){background:var(--accent)}
  .brand__mark span:nth-child(3){background:var(--mint)}
  .brand__text{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.01em}
  .nav-cta{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:10px 20px;border-radius:var(--radius-btn);
    background:var(--accent);color:#fff;font-size:15px;font-weight:600;
    transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
  }
  .nav-cta:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 10px 20px -12px rgba(224,83,31,.7)}
  .nav-cta:active{transform:translateY(0)}
  .nav-mobile{display:none;align-items:center;gap:12px}
  .nav-toggle{
    width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:var(--surface);
    display:inline-flex;align-items:center;justify-content:center;transition:border-color .18s ease,background .18s ease;
  }
  .nav-toggle:hover{border-color:var(--primary);background:rgba(20,72,76,.05)}
  .nav-toggle__bars{position:relative;width:18px;height:12px;display:block}
  .nav-toggle__bars span{position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--primary);transition:transform .2s ease,opacity .2s ease}
  .nav-toggle__bars span:nth-child(1){top:0}
  .nav-toggle__bars span:nth-child(2){top:5px}
  .nav-toggle__bars span:nth-child(3){top:10px}
  .nav-toggle.is-open .nav-toggle__bars span:nth-child(1){transform:translateY(5px) rotate(45deg)}
  .nav-toggle.is-open .nav-toggle__bars span:nth-child(2){opacity:0}
  .nav-toggle.is-open .nav-toggle__bars span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
  .mobile-drawer{display:none;border-top:1px solid var(--line);background:var(--bg)}
  .mobile-drawer.is-open{display:block}
  .mobile-drawer__inner{padding:8px 24px 24px}
  .mobile-drawer__link{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    padding:16px 0;font-size:17px;color:var(--ink);border-bottom:1px solid var(--line);min-height:44px;
  }
  .mobile-drawer__link.is-active{color:var(--primary);font-weight:700}
  .mobile-drawer__foot{padding-top:20px}
  .mobile-drawer__foot .nav-cta{width:100%}

  /* ---------- generic pieces ---------- */
  .section{padding:96px 0}
  .section--tight{padding-top:64px}
  .eyebrow{
    display:inline-flex;align-items:center;gap:10px;font-family:var(--font-mono);
    font-size:13px;font-weight:600;letter-spacing:.14em;color:var(--primary);text-transform:uppercase;
  }
  .eyebrow::before{content:"";width:8px;height:8px;background:var(--primary);border-radius:1px}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
  .section-head h2{font-size:28px;line-height:1.35}
  .section-head p{color:var(--ink-2);font-size:15px;max-width:560px}
  .badge{
    display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;
    background:rgba(159,199,187,.32);color:var(--primary);font-size:13px;font-weight:600;line-height:1.4;
  }
  .badge--outline{background:transparent;border:1px solid var(--line);color:var(--ink-2)}
  .btn-primary{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;
    padding:13px 26px;border-radius:var(--radius-btn);background:var(--accent);color:#fff;
    font-size:16px;font-weight:600;transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
  }
  .btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 12px 24px -14px rgba(224,83,31,.8)}
  .btn-primary:active{transform:translateY(0)}
  .btn-ghost{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;
    padding:12px 24px;border-radius:var(--radius-btn);border:1.5px solid var(--primary);
    color:var(--primary);font-size:16px;font-weight:600;background:transparent;
    transition:background .18s ease,color .18s ease,transform .18s ease;
  }
  .btn-ghost:hover{background:rgba(20,72,76,.08);transform:translateY(-1px)}
  .link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:15px;min-height:44px}
  .link-arrow svg{transition:transform .18s ease}
  .link-arrow:hover svg{transform:translateX(4px)}
  .card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
    box-shadow:var(--shadow-1);padding:24px;transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  }
  .card:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:var(--shadow-2)}

  /* ---------- page hero ---------- */
  .page-hero{padding:56px 0 56px;border-bottom:1px solid var(--line)}
  .page-hero__inner{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center;min-height:248px}
  .breadcrumb{font-size:13px;color:var(--ink-2);margin-bottom:16px}
  .breadcrumb a{color:var(--ink-2);transition:color .18s ease}
  .breadcrumb a:hover{color:var(--primary)}
  .breadcrumb span{margin:0 8px;color:var(--line)}
  .page-hero h1{font-size:40px;line-height:1.25;margin:16px 0 16px}
  .page-hero .lead{font-size:16px;color:var(--ink-2);max-width:640px;margin-bottom:0}
  .page-hero__media{
    position:relative;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);
    aspect-ratio:4 / 3;background:rgba(159,199,187,.16);
  }
  .page-hero__media img{width:100%;height:100%;object-fit:cover}
  .hero-stats{display:flex;flex-wrap:wrap;gap:0;margin-top:26px}
  .hero-stat{padding:0 22px;border-left:1px solid var(--line)}
  .hero-stat:first-child{padding-left:0;border-left:0}
  .hero-stat b{display:block;font-family:var(--font-mono);font-size:20px;font-weight:700;color:var(--primary);line-height:1.2}
  .hero-stat span{font-size:13px;color:var(--ink-2)}

  /* ---------- intro ---------- */
  .intro-grid{display:grid;grid-template-columns:1fr;gap:0}
  .intro-copy{max-width:720px}
  .intro-copy p{color:var(--ink-2);font-size:16px;line-height:1.85;margin-bottom:20px}
  .intro-copy p:first-of-type{color:var(--ink)}

  /* ---------- matrix 2x2 ---------- */
  .matrix{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
  .matrix-card{position:relative;overflow:hidden;padding:28px}
  .matrix-card__num{
    position:absolute;right:20px;top:10px;font-family:var(--font-mono);font-size:48px;line-height:1;
    font-weight:700;color:rgba(20,72,76,.10);pointer-events:none;user-select:none;
  }
  .matrix-card h3{font-size:20px;line-height:1.4;margin-bottom:12px;padding-right:56px}
  .matrix-card p{color:var(--ink-2);font-size:15px;line-height:1.8;margin-bottom:16px}
  .matrix-card__tags{display:flex;flex-wrap:wrap;gap:8px}

  /* ---------- prepare 7:5 ---------- */
  .split-7-5{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start}
  .check-list li{
    display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line);
  }
  .check-list li:first-child{padding-top:0}
  .check-list li:last-child{border-bottom:0;padding-bottom:0}
  .check-list__idx{
    flex:0 0 auto;width:28px;height:28px;border-radius:8px;background:rgba(20,72,76,.08);
    color:var(--primary);font-family:var(--font-mono);font-size:13px;font-weight:700;
    display:inline-flex;align-items:center;justify-content:center;margin-top:4px;
  }
  .check-list__body strong{display:block;font-size:16px;font-weight:600;margin-bottom:4px}
  .check-list__body span{color:var(--ink-2);font-size:15px;line-height:1.8}
  .template-card{border-top:3px solid var(--primary)}
  .template-card h3{font-size:20px;line-height:1.4;margin-bottom:16px}
  .template-row{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px solid var(--line);font-size:14px}
  .template-row:last-of-type{border-bottom:0}
  .template-row span:first-child{color:var(--ink-2)}
  .template-row span:last-child{font-family:var(--font-mono);color:var(--ink)}
  .template-media{margin-top:18px;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line)}
  .template-media img{width:100%;aspect-ratio:16 / 9;object-fit:cover}

  /* ---------- faq ---------- */
  .faq-wrap{max-width:880px}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-item:first-child{border-top:1px solid var(--line)}
  .faq-q{
    width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
    padding:20px 0 20px 16px;position:relative;text-align:left;font-size:17px;font-weight:600;
    color:var(--ink);transition:color .18s ease;min-height:44px;
  }
  .faq-q::before{
    content:"";position:absolute;left:0;top:24px;bottom:24px;width:3px;border-radius:2px;
    background:var(--accent);opacity:0;transition:opacity .2s ease;
  }
  .faq-q:hover{color:var(--primary)}
  .faq-item.is-open .faq-q{color:var(--primary)}
  .faq-item.is-open .faq-q::before{opacity:1}
  .faq-icon{flex:0 0 auto;margin-top:6px;color:var(--primary);transition:transform .22s ease}
  .faq-item.is-open .faq-icon{transform:rotate(180deg)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
  .faq-a__inner{padding:0 0 22px 16px;font-size:15px;line-height:1.8;color:var(--ink-2);max-width:720px}

  /* ---------- cross links ---------- */
  .cross-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
  .cross-card{display:flex;flex-direction:column;gap:12px}
  .cross-card__head{display:flex;align-items:center;justify-content:space-between;gap:12px}
  .cross-card__num{font-family:var(--font-mono);font-size:13px;font-weight:700;color:var(--primary);letter-spacing:.1em}
  .cross-card h3{font-size:18px;line-height:1.45}
  .cross-card p{color:var(--ink-2);font-size:14px;line-height:1.7;margin-bottom:0}
  .cross-card .link-arrow{margin-top:auto}

  /* ---------- cta band ---------- */
  .cta-band{background:var(--primary);color:#fff;padding:72px 0}
  .cta-band__inner{display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:center}
  .cta-band h2{color:#fff;font-size:28px;line-height:1.35;margin-bottom:14px}
  .cta-band p{color:rgba(255,255,255,.82);font-size:16px;max-width:620px;margin-bottom:0}
  .cta-band__ticks{display:flex;gap:8px;margin-bottom:22px}
  .cta-band__ticks i{display:block;width:28px;height:2px;background:rgba(255,255,255,.32);border-radius:2px}
  .cta-band__ticks i:nth-child(2){background:rgba(255,255,255,.55)}
  .cta-band__ticks i:nth-child(3){background:var(--accent)}
  .cta-band__action{justify-self:end}

  /* ---------- footer ---------- */
  .site-footer{background:var(--band);color:rgba(255,255,255,.8);padding:64px 0 0;margin-top:0}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:40px}
  .footer-col{position:relative;padding-right:24px}
  .footer-col + .footer-col{border-left:1px solid var(--band-line);padding-left:32px}
  .footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:14px}
  .footer-brand__mark{display:grid;grid-template-columns:7px 7px;grid-template-rows:7px 7px;gap:3px}
  .footer-brand__mark span{display:block;background:var(--mint);border-radius:2px}
  .footer-brand__mark span:first-child{background:var(--accent)}
  .footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);margin-bottom:0}
  .footer-col h3{font-size:14px;color:var(--mint);font-weight:600;margin-bottom:16px;letter-spacing:.04em}
  .footer-col ul li{margin-bottom:10px}
  .footer-col ul a{
    font-size:14px;color:rgba(255,255,255,.8);padding-bottom:2px;
    border-bottom:2px solid transparent;transition:color .18s ease,border-color .18s ease;
  }
  .footer-col ul a:hover{color:#fff;border-bottom-color:var(--accent)}
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    border-top:1px solid var(--band-line);padding:20px 0 28px;font-size:14px;color:rgba(255,255,255,.6);
  }
  .footer-bottom p{margin:0}
  .footer-bottom__links{display:flex;gap:20px;flex-wrap:wrap}
  .footer-bottom__links a{color:rgba(255,255,255,.8);transition:color .18s ease}
  .footer-bottom__links a:hover{color:#fff}

  /* ---------- responsive ---------- */
  @media (max-width:1023px){
    .nav-group{display:none}
    .nav-bar{grid-template-columns:44px 1fr 44px;gap:12px}
    .nav-mobile{display:flex;justify-content:space-between;grid-column:1 / -1;width:100%}
    .brand{grid-column:2;justify-self:center}
    .page-hero__inner{grid-template-columns:1fr;gap:28px}
    .page-hero__media{order:2}
    .split-7-5{grid-template-columns:1fr}
    .cross-grid{grid-template-columns:1fr 1fr}
    .cta-band__inner{grid-template-columns:1fr}
    .cta-band__action{justify-self:start}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
    .footer-col{padding-right:0}
    .footer-col + .footer-col{border-left:0;padding-left:0}
    .section{padding:72px 0}
    .section--tight{padding-top:56px}
  }
  @media (max-width:767px){
    .page-hero h1{font-size:30px}
    .matrix{grid-template-columns:1fr}
    .cross-grid{grid-template-columns:1fr}
    .section-head h2{font-size:24px}
    .cta-band h2{font-size:24px}
    .cta-band{padding:56px 0}
  }
  @media (max-width:639px){
    .container{padding:0 20px}
    .page-hero{padding:40px 0}
    .page-hero h1{font-size:28px}
    .section{padding:56px 0}
    .section--tight{padding-top:44px}
    .footer-grid{grid-template-columns:1fr;gap:24px}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
    .btn-primary,.btn-ghost{width:100%}
    .hero-stat{padding:0 14px}
    .card{padding:20px}
    .matrix-card{padding:22px}
  }
  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  }

/* roulang page: category3 */
:root{
    --bg:#F7F5F0;
    --surface:#FFFFFF;
    --ink:#12201F;
    --ink-2:#556664;
    --line:#E4DED3;
    --primary:#14484C;
    --primary-hover:#0E3A3D;
    --accent:#FF6A3D;
    --accent-hover:#E0531F;
    --mint:#9FC7BB;
    --band:#0D2528;
    --band-line:rgba(255,255,255,.10);
    --error:#C0392B;
    --r-card:14px;
    --r-btn:10px;
    --r-input:10px;
    --r-badge:999px;
    --r-img:12px;
    --sh-1:0 1px 2px rgba(18,32,31,.06);
    --sh-2:0 12px 28px -12px rgba(18,32,31,.20);
    --sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
    --mono:ui-monospace,"IBM Plex Mono",Consolas,"Courier New",monospace;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink-2);
    font-family:var(--sans);
    font-size:16px;
    line-height:1.8;
    font-weight:400;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  h1,h2,h3,h4{color:var(--ink);margin:0;line-height:1.35;font-weight:700;}
  h1{font-size:40px;line-height:1.25;}
  h2{font-size:28px;line-height:1.35;}
  h3{font-size:20px;line-height:1.4;font-weight:600;}
  p{margin:0 0 18px;}
  p:last-child{margin-bottom:0;}
  ul,ol{margin:0;padding:0;}
  img{max-width:100%;display:block;}
  a{color:var(--primary);text-decoration:none;}
  button{font-family:inherit;}
  .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

  a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
    outline:2px solid var(--accent);
    outline-offset:2px;
    border-radius:6px;
  }

  /* ============ 顶部导航 ============ */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:rgba(247,245,240,.94);
    backdrop-filter:saturate(1.2) blur(10px);
    border-bottom:1px solid transparent;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-1);}
  .header-inner{
    display:grid;
    grid-template-columns:1fr auto 1fr;
    grid-template-areas:"left brand right";
    align-items:center;
    gap:16px;
    min-height:72px;
  }
  .nav-group{display:flex;align-items:center;gap:20px;grid-area:left;}
  .nav-group--right{grid-area:right;justify-content:flex-end;}
  .nav-link{
    position:relative;
    display:inline-block;
    font-size:15px;
    color:var(--ink);
    padding:8px 0;
    white-space:nowrap;
    transition:color .18s ease;
  }
  .nav-link::after{
    content:"";
    position:absolute;
    left:50%;
    bottom:2px;
    width:60%;
    height:2px;
    background:var(--accent);
    transform:translateX(-50%) scaleX(0);
    transform-origin:center;
    transition:transform .18s ease;
  }
  .nav-link:hover{color:var(--primary);}
  .nav-link:hover::after{transform:translateX(-50%) scaleX(1);}
  .nav-link.is-active{color:var(--primary);font-weight:700;}
  .nav-link.is-active::after{transform:translateX(-50%) scaleX(1);}
  .nav-link.is-active::before{
    content:"";
    position:absolute;
    left:50%;
    bottom:-4px;
    width:5px;height:5px;
    border-radius:50%;
    background:var(--primary);
    transform:translateX(-50%);
  }
  .brand{
    grid-area:brand;
    display:inline-flex;
    align-items:center;
    gap:10px;
    justify-self:center;
    padding:6px 4px;
  }
  .brand__mark{
    width:26px;height:26px;
    border-radius:8px;
    background:var(--primary);
    display:grid;place-items:center;
    flex:0 0 auto;
    transition:background .18s ease;
  }
  .brand__mark span{width:9px;height:9px;border-radius:2px;background:var(--accent);display:block;}
  .brand:hover .brand__mark{background:var(--primary-hover);}
  .brand__text{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.01em;white-space:nowrap;}

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:48px;
    padding:0 22px;
    border-radius:var(--r-btn);
    border:1.5px solid transparent;
    font-size:15px;
    font-weight:600;
    cursor:pointer;
    transition:background .18s ease,color .18s ease,transform .18s ease,border-color .18s ease,box-shadow .18s ease;
  }
  .btn--primary{background:var(--accent);color:#fff;}
  .btn--primary:hover{background:var(--accent-hover);transform:translateY(-1px);}
  .btn--primary:active{transform:translateY(0);}
  .btn--ghost{background:transparent;border-color:var(--primary);color:var(--primary);}
  .btn--ghost:hover{background:rgba(20,72,76,.08);}
  .btn--ghost:active{background:rgba(20,72,76,.14);}
  .btn--sm{height:40px;padding:0 16px;font-size:14px;}

  .nav-toggle,
  .mobile-cta,
  .mobile-drawer{display:none;}

  .nav-toggle{
    grid-area:left;
    justify-self:start;
    width:44px;height:44px;
    border:1px solid var(--line);
    border-radius:var(--r-btn);
    background:var(--surface);
    align-items:center;
    justify-content:center;
    flex-direction:column;
    gap:5px;
    cursor:pointer;
    transition:border-color .18s ease,background .18s ease;
  }
  .nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
  .nav-toggle:hover{border-color:var(--primary);}
  .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);}

  .mobile-cta{
    grid-area:right;
    justify-self:end;
    width:44px;height:44px;
    border-radius:var(--r-btn);
    background:var(--accent);
    color:#fff;
    align-items:center;
    justify-content:center;
    font-size:18px;
    transition:background .18s ease,transform .18s ease;
  }
  .mobile-cta:hover{background:var(--accent-hover);transform:translateY(-1px);}

  .mobile-drawer{
    border-top:1px solid var(--line);
    background:var(--surface);
    box-shadow:var(--sh-1);
  }
  .mobile-drawer.is-open{display:block;}
  .mobile-drawer .container{padding-top:8px;padding-bottom:20px;}
  .drawer-link{
    display:flex;
    align-items:center;
    min-height:52px;
    font-size:17px;
    color:var(--ink);
    border-bottom:1px solid var(--line);
    transition:color .18s ease;
  }
  .drawer-link:hover{color:var(--primary);}
  .drawer-link.is-active{color:var(--primary);font-weight:700;}
  .drawer-cta{
    display:flex;
    align-items:center;
    justify-content:center;
    min-height:48px;
    margin-top:18px;
    border-radius:var(--r-btn);
    background:var(--accent);
    color:#fff;
    font-weight:600;
    transition:background .18s ease;
  }
  .drawer-cta:hover{background:var(--accent-hover);}

  /* ============ 通用板块 ============ */
  .section{padding:96px 0;}
  .section--tint{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:10px;
    font-family:var(--mono);
    font-size:13px;
    letter-spacing:.06em;
    color:var(--primary);
    font-weight:600;
  }
  .eyebrow i{width:8px;height:8px;border-radius:2px;background:var(--primary);display:block;flex:0 0 auto;}

  .section-head{max-width:720px;margin-bottom:40px;}
  .section-head h2{margin:14px 0 12px;}
  .section-sub{font-size:16px;color:var(--ink-2);margin:0;}

  .badge{
    display:inline-flex;
    align-items:center;
    height:28px;
    padding:0 12px;
    border-radius:var(--r-badge);
    background:rgba(159,199,187,.30);
    color:var(--primary);
    font-size:13px;
    font-weight:600;
    letter-spacing:.02em;
  }

  /* ============ 分类页窄幅头图 ============ */
  .page-hero{
    position:relative;
    min-height:268px;
    display:flex;
    align-items:center;
    background:var(--primary);
    overflow:hidden;
  }
  .page-hero__bg{
    position:absolute;
    inset:0;
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;
    background-position:center;
    opacity:.42;
  }
  .page-hero__veil{position:absolute;inset:0;background:rgba(13,37,40,.66);}
  .page-hero__ticks{
    position:absolute;
    right:24px;
    bottom:28px;
    display:flex;
    gap:8px;
    opacity:.55;
  }
  .page-hero__ticks span{display:block;width:2px;height:26px;background:#fff;border-radius:2px;}
  .page-hero__ticks span:nth-child(2){height:16px;}
  .page-hero__ticks span:nth-child(3){height:34px;}
  .page-hero__ticks span:nth-child(4){height:20px;}
  .page-hero__ticks span:nth-child(5){height:12px;}
  .page-hero__inner{position:relative;z-index:2;padding:64px 0;max-width:760px;}
  .breadcrumb{font-size:13px;color:rgba(255,255,255,.70);margin-bottom:16px;}
  .breadcrumb a{color:rgba(255,255,255,.86);transition:color .18s ease;}
  .breadcrumb a:hover{color:#fff;}
  .page-hero h1{color:#fff;margin:14px 0 14px;}
  .page-hero p{color:rgba(255,255,255,.80);font-size:16px;margin:0;max-width:620px;}
  .badge--on-dark{background:rgba(159,199,187,.22);color:#DCEDE6;}

  /* ============ 分类简介 ============ */
  .intro-grid{
    display:grid;
    grid-template-columns:7fr 5fr;
    gap:48px;
    align-items:center;
  }
  .intro-copy h2{margin:14px 0 18px;}
  .intro-copy p{font-size:16px;line-height:1.85;}
  .intro-media{position:relative;margin:0;}
  .intro-media img{
    width:100%;
    aspect-ratio:4/3;
    object-fit:cover;
    border-radius:var(--r-img);
    border:1px solid var(--line);
    background:rgba(159,199,187,.08);
  }
  .intro-media figcaption{
    position:absolute;
    right:16px;
    bottom:16px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    box-shadow:var(--sh-1);
    padding:12px 16px;
    font-family:var(--mono);
    font-size:13px;
    color:var(--ink);
    line-height:1.5;
  }
  .intro-media figcaption em{display:block;font-style:normal;color:var(--ink-2);font-family:var(--sans);font-size:13px;}
  .metric-inline{
    display:flex;
    flex-wrap:wrap;
    gap:28px;
    margin-top:28px;
    padding-top:24px;
    border-top:1px solid var(--line);
  }
  .metric-inline div{min-width:110px;}
  .metric-inline b{display:block;font-family:var(--mono);font-size:26px;font-weight:700;color:var(--primary);line-height:1.2;}
  .metric-inline span{font-size:13px;color:var(--ink-2);}

  /* ============ 步骤条 ============ */
  .step-list{position:relative;list-style:none;margin-top:8px;}
  .step-list::before{
    content:"";
    position:absolute;
    left:21px;
    top:14px;
    bottom:34px;
    width:1px;
    background:var(--primary);
    opacity:.30;
  }
  .step-item{
    position:relative;
    display:grid;
    grid-template-columns:44px 1fr;
    gap:24px;
    padding-bottom:38px;
  }
  .step-item:last-child{padding-bottom:0;}
  .step-node{
    width:44px;height:44px;
    border-radius:50%;
    background:var(--surface);
    border:1px solid var(--primary);
    color:var(--primary);
    font-family:var(--mono);
    font-size:14px;
    font-weight:700;
    display:grid;
    place-items:center;
    position:relative;
    z-index:1;
    transition:background .2s ease,color .2s ease,box-shadow .2s ease;
  }
  .step-item:hover .step-node{background:var(--primary);color:#fff;box-shadow:var(--sh-1);}
  .step-body h3{margin-bottom:10px;font-size:19px;}
  .step-body p{font-size:15px;line-height:1.85;margin:0;max-width:760px;}
  .step-tag{
    display:inline-block;
    margin-top:12px;
    font-family:var(--mono);
    font-size:12px;
    letter-spacing:.04em;
    color:var(--primary);
    background:rgba(159,199,187,.22);
    border-radius:var(--r-badge);
    padding:3px 10px;
  }

  /* ============ 注意事项列表 ============ */
  .notes-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
  .notes-copy h2{margin:14px 0 18px;}
  .notes-list{list-style:none;}
  .notes-list li{
    display:grid;
    grid-template-columns:132px 1fr;
    gap:20px;
    padding:20px 0;
    border-top:1px solid var(--line);
  }
  .notes-list li:last-child{border-bottom:1px solid var(--line);}
  .notes-list strong{color:var(--ink);font-size:16px;font-weight:600;}
  .notes-list span{font-size:15px;line-height:1.8;}

  /* ============ FAQ ============ */
  .faq{max-width:860px;border-top:1px solid var(--line);}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-q{
    position:relative;
    width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    padding:22px 4px 22px 0;
    background:none;
    border:0;
    text-align:left;
    font-size:17px;
    font-weight:600;
    color:var(--ink);
    cursor:pointer;
    transition:color .18s ease,padding-left .2s ease;
  }
  .faq-q::before{
    content:"";
    position:absolute;
    left:0;
    top:22px;
    bottom:22px;
    width:3px;
    background:var(--accent);
    border-radius:2px;
    transform:scaleY(0);
    transform-origin:top;
    transition:transform .2s ease;
  }
  .faq-q:hover{color:var(--primary);}
  .faq-arrow{
    flex:0 0 auto;
    width:20px;height:20px;
    position:relative;
    transition:transform .22s ease;
  }
  .faq-arrow::before,
  .faq-arrow::after{
    content:"";
    position:absolute;
    top:9px;
    width:11px;height:2px;
    background:var(--primary);
    border-radius:2px;
  }
  .faq-arrow::before{left:0;transform:rotate(45deg);}
  .faq-arrow::after{right:0;transform:rotate(-45deg);}
  .faq-item.is-open .faq-q{padding-left:14px;}
  .faq-item.is-open .faq-q::before{transform:scaleY(1);}
  .faq-item.is-open .faq-arrow{transform:rotate(180deg);}
  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .22s ease;
  }
  .faq-a p{
    font-size:15px;
    line-height:1.8;
    color:var(--ink-2);
    margin:0;
    padding:0 40px 24px 14px;
  }

  /* ============ 交叉入口 ============ */
  .cross-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .cross-card{
    display:flex;
    flex-direction:column;
    gap:12px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:24px;
    color:inherit;
    box-shadow:var(--sh-1);
    transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease,background .2s ease;
  }
  .cross-card:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:var(--sh-2);background:rgba(20,72,76,.02);}
  .cross-num{font-family:var(--mono);font-size:13px;color:var(--primary);font-weight:700;letter-spacing:.06em;}
  .cross-card h3{font-size:17px;}
  .cross-card p{font-size:14px;line-height:1.7;margin:0;color:var(--ink-2);}
  .cross-more{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--primary);margin-top:4px;}
  .cross-more span{transition:transform .18s ease;}
  .cross-card:hover .cross-more span{transform:translateX(4px);}

  /* ============ CTA 条 ============ */
  .cta-band{background:var(--primary);color:#fff;}
  .cta-band__inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:32px;
    padding:56px 24px;
  }
  .cta-band h2{color:#fff;font-size:26px;margin-bottom:10px;}
  .cta-band p{color:rgba(255,255,255,.78);font-size:15px;margin:0;max-width:560px;}
  .cta-band .btn{flex:0 0 auto;}

  /* ============ 页脚 ============ */
  .site-footer{
    background:var(--band);
    color:rgba(255,255,255,.80);
    padding-top:72px;
    margin-top:0;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr 1.2fr;
    padding-bottom:48px;
  }
  .footer-col{padding:0 28px;}
  .footer-col:first-child{padding-left:0;}
  .footer-col:last-child{padding-right:0;}
  .footer-col + .footer-col{border-left:1px solid var(--band-line);}
  .footer-brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    color:#fff;
    font-size:18px;
    font-weight:700;
    margin-bottom:16px;
    transition:color .18s ease;
  }
  .footer-brand:hover{color:#fff;}
  .footer-brand__mark{
    width:24px;height:24px;
    border-radius:7px;
    background:rgba(255,255,255,.12);
    display:grid;place-items:center;
  }
  .footer-brand__mark span{width:8px;height:8px;border-radius:2px;background:var(--accent);display:block;}
  .footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);margin:0;}
  .footer-col h3{
    font-size:14px;
    color:var(--mint);
    font-weight:600;
    margin-bottom:16px;
    letter-spacing:.02em;
  }
  .footer-col ul{list-style:none;display:grid;gap:12px;}
  .footer-col ul a{
    display:inline-block;
    font-size:14px;
    color:rgba(255,255,255,.80);
    padding-bottom:2px;
    border-bottom:2px solid transparent;
    transition:color .18s ease,border-color .18s ease;
  }
  .footer-col ul a:hover{color:#fff;border-bottom-color:var(--accent);}
  .footer-bottom{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:22px 0;
    border-top:1px solid var(--band-line);
  }
  .footer-bottom p{font-size:13px;margin:0;color:rgba(255,255,255,.62);}
  .footer-bottom__links{display:flex;flex-wrap:wrap;gap:20px;}
  .footer-bottom__links a{
    font-size:13px;
    color:rgba(255,255,255,.62);
    transition:color .18s ease;
  }
  .footer-bottom__links a:hover{color:#fff;}

  /* ============ 响应式 ============ */
  @media (max-width:1023px){
    .header-inner{
      grid-template-columns:44px 1fr 44px;
      grid-template-areas:"left brand right";
      min-height:64px;
    }
    .nav-group{display:none;}
    .nav-toggle{display:flex;}
    .mobile-cta{display:flex;}
    .brand__text{font-size:17px;}

    .section{padding:72px 0;}
    .intro-grid{grid-template-columns:1fr;gap:32px;}
    .intro-media{order:-1;}
    .notes-grid{grid-template-columns:1fr;gap:32px;}
    .cross-grid{grid-template-columns:repeat(2,1fr);}
    .cta-band__inner{flex-direction:column;align-items:flex-start;gap:24px;padding:48px 24px;}
    .footer-grid{grid-template-columns:1fr 1fr;row-gap:36px;}
    .footer-col{padding:0;}
    .footer-col + .footer-col{border-left:0;}
    .footer-col:nth-child(even){border-left:1px solid var(--band-line);padding-left:24px;}
    h1{font-size:32px;}
    h2{font-size:24px;}
    .page-hero h1{font-size:30px;}
  }

  @media (max-width:640px){
    .container{padding:0 20px;}
    .section{padding:56px 0;}
    h1{font-size:28px;}
    h2{font-size:22px;}
    h3{font-size:18px;}
    .page-hero{min-height:240px;}
    .page-hero__inner{padding:48px 0;}
    .page-hero h1{font-size:26px;}
    .step-item{grid-template-columns:36px 1fr;gap:16px;}
    .step-node{width:36px;height:36px;font-size:13px;}
    .step-list::before{left:17px;}
    .notes-list li{grid-template-columns:1fr;gap:6px;}
    .cross-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;row-gap:32px;}
    .footer-col:nth-child(even){border-left:0;padding-left:0;}
    .footer-col + .footer-col{border-top:1px solid var(--band-line);padding-top:28px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
    .cta-band .btn{width:100%;}
    .metric-inline{gap:20px;}
    .faq-q{font-size:16px;}
    .faq-a p{padding-right:10px;}
  }

  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  }

/* roulang page: category4 */
:root{
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --ink:#12201F;
  --ink-2:#556664;
  --line:#E4DED3;
  --primary:#14484C;
  --primary-hover:#0E3A3D;
  --accent:#FF6A3D;
  --accent-hover:#E0531F;
  --mint:#9FC7BB;
  --band:#0D2528;
  --band-line:rgba(255,255,255,.10);
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(18,32,31,.06);
  --shadow-2:0 12px 28px -12px rgba(18,32,31,.20);
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"IBM Plex Mono",Consolas,"Courier New",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
::selection{background:rgba(255,106,61,.22)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(247,245,240,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--shadow-1)}
.header-inner{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  gap:16px;height:72px;
}
.nav-group{display:flex;align-items:center;gap:24px}
.nav-group--right{justify-content:flex-end;gap:20px}
.nav-link{
  position:relative;font-size:15px;color:var(--ink-2);
  padding:6px 2px;transition:color .18s ease;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:0;
  width:0;height:2px;background:var(--accent);
  transform:translateX(-50%);transition:width .18s ease;
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{width:60%}
.nav-link.is-active{color:var(--primary);font-weight:600}
.nav-link.is-active::before{
  content:"";position:absolute;left:50%;bottom:-5px;
  width:4px;height:4px;border-radius:50%;background:var(--primary);
  transform:translateX(-50%);
}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--ink);white-space:nowrap}
.brand__mark{
  width:26px;height:26px;border-radius:7px;background:var(--primary);
  display:grid;place-items:center;flex:none;
}
.brand__mark i{display:block;width:9px;height:9px;border-radius:2px;background:var(--mint)}
.menu-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:var(--surface);color:var(--primary);
}
.menu-toggle:hover{border-color:var(--primary);background:rgba(20,72,76,.06)}
.mobile-drawer{display:none;background:var(--surface);border-top:1px solid var(--line)}
.mobile-drawer.is-open{display:block}
.mobile-drawer a.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:54px;padding:0 24px;font-size:17px;color:var(--ink);
  border-bottom:1px solid var(--line);transition:background-color .18s ease,color .18s ease;
}
.mobile-drawer a.drawer-link:hover{background:rgba(20,72,76,.05);color:var(--primary)}
.mobile-drawer a.drawer-link.is-active{color:var(--primary);font-weight:600}
.drawer-cta{padding:18px 24px}
.header-cta-icon{display:none}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.btn--primary{background:var(--accent);color:#fff}
.btn--primary:hover{background:var(--accent-hover);transform:translateY(-1px)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{border-color:var(--primary);color:var(--primary);background:transparent}
.btn--ghost:hover{background:rgba(20,72,76,.08)}
.btn--sm{min-height:40px;padding:0 16px;font-size:14px}
.btn--block{width:100%}

/* ---------- Page hero ---------- */
.page-hero{padding:44px 0 44px;border-bottom:1px solid var(--line)}
.page-hero__grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-2);margin-bottom:16px;
}
.breadcrumb a{transition:color .18s ease}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span.sep{opacity:.6}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;background:rgba(159,199,187,.30);
  color:var(--primary);font-size:13px;font-weight:600;margin-bottom:16px;
}
.page-hero h1{
  font-size:34px;line-height:1.3;letter-spacing:-.2px;font-weight:700;
}
.page-hero .lead{
  margin-top:16px;font-size:16px;line-height:1.8;color:var(--ink-2);max-width:620px;
}
.page-hero__media{position:relative}
.page-hero__media img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--radius-img);border:1px solid var(--line);
}
.hero-tag{
  position:absolute;left:16px;bottom:16px;
  background:rgba(255,255,255,.94);border:1px solid var(--line);
  border-radius:12px;padding:10px 14px;box-shadow:var(--shadow-1);
  font-family:var(--font-mono);font-size:13px;color:var(--primary);
  letter-spacing:.06em;
}

/* ---------- Section shell ---------- */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:36px;
}
.section-index{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:13px;color:var(--ink-2);
  letter-spacing:.1em;margin-bottom:12px;
}
.section-index::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--primary)}
.h2{font-size:28px;line-height:1.35}
.h3{font-size:20px;line-height:1.4}
.prose-block{max-width:720px}
.prose-block p{font-size:16px;line-height:1.85;color:var(--ink-2)}
.prose-block p + p{margin-top:18px}

/* ---------- Intro split ---------- */
.intro-split{display:grid;grid-template-columns:5fr 7fr;gap:36px;align-items:center;margin-top:48px}
.intro-split__media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-img);border:1px solid var(--line);
}
.point-list{border-top:1px solid var(--line)}
.point-list li{
  display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line);
}
.point-list .idx{
  font-family:var(--font-mono);font-size:13px;color:var(--accent);
  padding-top:4px;flex:none;letter-spacing:.06em;
}
.point-list h3{font-size:17px;font-weight:600;margin-bottom:6px}
.point-list p{font-size:14px;line-height:1.75;color:var(--ink-2)}

/* ---------- Stat cards ---------- */
.stat-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.stat-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--primary)}
.stat-card__bar{width:12px;height:3px;border-radius:2px;background:var(--accent);margin-bottom:20px}
.stat-card__num{font-family:var(--font-mono);font-size:48px;line-height:1;font-weight:700;color:var(--primary)}
.stat-card__label{font-size:13px;color:var(--ink-2);margin-top:12px}
.stat-note{margin-top:22px;font-size:13px;color:var(--ink-2)}

/* ---------- Compare table ---------- */
.compare-wrap{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
}
.compare-scroll{overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.compare-scroll::-webkit-scrollbar{display:none}
.compare-table{width:100%;min-width:660px;border-collapse:collapse}
.compare-table caption{
  caption-side:top;text-align:left;padding:20px 24px 0;
  font-size:13px;color:var(--ink-2);
}
.compare-table th{
  background:var(--primary);color:#fff;text-align:left;
  font-size:15px;font-weight:600;padding:18px 24px;
}
.compare-table td{
  padding:20px 24px;font-size:15px;line-height:1.75;
  color:var(--ink-2);border-top:1px solid var(--line);vertical-align:top;
}
.compare-table td:first-child{color:var(--ink);font-weight:600;width:36%}
.compare-table tbody tr{transition:background-color .18s ease}
.compare-table tbody tr:hover td{background:rgba(20,72,76,.035)}
.compare-fade{
  display:none;position:absolute;top:0;right:0;bottom:0;width:44px;
  background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.96));
  pointer-events:none;
}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  position:relative;width:100%;display:flex;align-items:center;
  justify-content:space-between;gap:20px;padding:22px 0;
  font-size:17px;font-weight:600;text-align:left;color:var(--ink);
  transition:padding-left .22s ease,color .18s ease;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;
  background:var(--accent);opacity:0;transition:opacity .2s ease;
}
.faq-q:hover{color:var(--primary)}
.faq-item.is-open .faq-q{padding-left:16px}
.faq-item.is-open .faq-q::before{opacity:1}
.faq-arrow{width:20px;height:20px;flex:none;color:var(--primary);transition:transform .22s ease}
.faq-item.is-open .faq-arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-a p{padding:0 16px 22px;margin-top:12px;font-size:15px;line-height:1.8;color:var(--ink-2)}

/* ---------- Cross links ---------- */
.cross-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cross-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background-color .2s ease;
}
.cross-card:hover{
  transform:translateY(-4px);box-shadow:var(--shadow-2);
  border-color:var(--primary);background:rgba(20,72,76,.03);
}
.cross-card__idx{font-family:var(--font-mono);font-size:13px;color:var(--accent);letter-spacing:.08em}
.cross-card h3{font-size:18px;font-weight:600;margin:12px 0 8px}
.cross-card p{font-size:14px;line-height:1.75;color:var(--ink-2)}
.cross-card__more{
  margin-top:auto;padding-top:18px;display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--primary);
}
.cross-card__more .arrow{display:inline-block;transition:transform .18s ease}
.cross-card:hover .cross-card__more .arrow{transform:translateX(4px)}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--primary);border-radius:16px;padding:48px;
  display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;font-size:26px;line-height:1.4;font-weight:700}
.cta-band p{color:rgba(255,255,255,.78);font-size:15px;line-height:1.8;margin-top:10px;max-width:600px}
.cta-band .btn--primary{flex:none}

/* ---------- Footer ---------- */
.site-footer{background:var(--band);color:rgba(255,255,255,.8);margin-top:96px;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:0}
.footer-col{padding:0 28px;border-left:1px solid var(--band-line)}
.footer-col:first-child{border-left:0;padding-left:0}
.footer-col h3{font-size:14px;color:var(--mint);font-weight:600;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col a{
  font-size:14px;color:rgba(255,255,255,.8);
  border-bottom:2px solid transparent;transition:color .18s ease,border-color .18s ease;
}
.footer-col a:hover{color:#fff;border-bottom-color:var(--accent)}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72)}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;
  color:#fff;margin-bottom:16px;border-bottom:0;
}
.footer-brand:hover{color:#fff;border-bottom-color:transparent}
.footer-brand__mark{
  width:24px;height:24px;border-radius:6px;background:var(--accent);
  display:grid;place-items:center;flex:none;
}
.footer-brand__mark span{display:block;width:8px;height:8px;border-radius:2px;background:#fff}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--band-line);
  padding:22px 0 28px;display:flex;justify-content:space-between;
  align-items:center;gap:16px;flex-wrap:wrap;font-size:13px;
}
.footer-bottom__links{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom__links a{color:rgba(255,255,255,.8);transition:color .18s ease}
.footer-bottom__links a:hover{color:#fff}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .header-inner{display:flex;justify-content:space-between;align-items:center}
  .nav-group{display:none}
  .menu-toggle{display:inline-flex}
  .header-cta-icon{display:inline-flex}
  .page-hero__grid{grid-template-columns:1fr;gap:28px}
  .intro-split{grid-template-columns:1fr;gap:28px}
  .stat-cards{grid-template-columns:1fr 1fr}
  .cross-grid{grid-template-columns:1fr 1fr}
  .compare-fade{display:block}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;row-gap:36px}
  .footer-col{border-left:0;padding:0}
  .section{padding:72px 0}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .page-hero{padding:32px 0 36px}
  .page-hero h1{font-size:28px}
  .h2{font-size:24px}
  .stat-cards{grid-template-columns:1fr}
  .cross-grid{grid-template-columns:1fr}
  .cta-band{padding:32px 24px;flex-direction:column;align-items:flex-start}
  .cta-band h2{font-size:22px}
  .cta-band .btn--primary{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:28px}
  .stat-card__num{font-size:36px}
  .compare-table th,.compare-table td{padding-left:18px;padding-right:18px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important}
}