/* roulang page: index */
:root{
  --brand-900:#0A5D4C;
  --brand-600:#0E7C66;
  --brand-100:#E3F2ED;
  --accent-500:#E4572E;
  --accent-100:#FDEDE7;
  --gold-500:#F4B740;
  --ink:#12171C;
  --body:#46525C;
  --muted:#8A949E;
  --line:#E4E1DA;
  --bg:#F7F5F1;
  --surface:#FFFFFF;
  --dark:#10161A;
  --r-card:14px;
  --r-img:12px;
  --r-input:12px;
  --sh-1:0 1px 2px rgba(18,23,28,.05);
  --sh-2:0 10px 30px -14px rgba(18,23,28,.16);
  --sh-3:0 16px 36px -16px rgba(18,23,28,.22);
  --ease:240ms ease;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--body);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:28px;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700}
h1{font-size:40px;line-height:48px;letter-spacing:.01em}
h2{font-size:30px;line-height:38px}
h3{font-size:22px;line-height:30px;font-weight:600}
h4{font-size:18px;line-height:26px;font-weight:600}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:88px 0}
.section-tight{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head h2{position:relative;padding-left:16px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--brand-600);
}
.section-head .lead{color:var(--muted);font-size:15px;line-height:24px;margin-top:8px;padding-left:16px;max-width:640px}
.text-link{color:var(--brand-600);font-size:15px;font-weight:600;white-space:nowrap;transition:var(--ease)}
.text-link:hover{color:var(--brand-900)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  transition:transform var(--ease),background-color var(--ease),color var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px var(--brand-100)}
.btn-primary{background:var(--brand-600);color:#fff}
.btn-primary:hover{background:var(--brand-900);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--brand-600);color:var(--brand-600)}
.btn-ghost:hover{background:var(--brand-100);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-accent{background:var(--accent-500);color:#fff}
.btn-accent:hover{background:#c8451f;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-on-dark{background:#fff;color:var(--brand-900);border-color:#fff}
.btn-on-dark:hover{background:var(--brand-100);transform:translateY(-1px)}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-900);font-size:12px;font-weight:600;line-height:1;
}
.badge-accent{background:var(--accent-100);color:var(--accent-500)}
.badge-gold{background:#FDF3DC;color:#8A6212}
.badge-solid{background:var(--brand-600);color:#fff}

/* ---------- 卡片 ---------- */
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-3);border-color:rgba(14,124,102,.35)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,241,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-top{
  display:grid;grid-template-columns:auto minmax(280px,640px) auto;
  align-items:center;gap:24px;height:72px;
}
.logo{display:inline-flex;align-items:center;gap:10px;min-height:44px}
.logo-mark{
  width:32px;height:32px;border-radius:10px;flex:0 0 32px;
  background:var(--brand-600);color:#fff;
  display:flex;align-items:center;justify-content:center;
}
.logo-text{font-size:18px;font-weight:700;color:var(--brand-900);letter-spacing:.01em;white-space:nowrap}
.search{position:relative;width:100%;max-width:640px;justify-self:center}
.search-ico{position:absolute;left:18px;top:50%;transform:translateY(-50%);color:var(--muted);pointer-events:none}
.search input{
  width:100%;height:46px;border-radius:999px;border:1px solid var(--line);
  background:var(--surface);padding:0 118px 0 46px;font-size:15px;color:var(--ink);
  transition:var(--ease);appearance:none;
}
.search input::placeholder{color:var(--muted)}
.search input:focus{outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px var(--brand-100)}
.search button{
  position:absolute;right:5px;top:5px;bottom:5px;padding:0 22px;
  border:0;border-radius:999px;background:var(--brand-600);color:#fff;font-size:14px;font-weight:600;
  transition:var(--ease);
}
.search button:hover{background:var(--brand-900)}
.search button:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(255,255,255,.6)}
.nav-actions{display:flex;align-items:center;gap:6px;justify-self:end}
.nav-link{
  display:inline-flex;align-items:center;height:44px;padding:0 14px;border-radius:999px;
  font-size:15px;font-weight:600;color:var(--body);transition:var(--ease);
}
.nav-link:hover{color:var(--brand-600);background:var(--brand-100)}
.nav-link.is-cta{color:var(--brand-600)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:rgba(14,124,102,.35)}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-chips{
  display:flex;gap:10px;padding:0 0 12px;overflow-x:auto;
  scrollbar-width:none;-ms-overflow-style:none;
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 18px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);color:var(--body);
  font-size:14px;font-weight:600;white-space:nowrap;transition:var(--ease);
}
.chip:hover{color:var(--brand-600);border-color:rgba(14,124,102,.35);background:var(--brand-100)}
.chip.is-active{background:var(--brand-600);border-color:var(--brand-600);color:#fff}
.chip:focus-visible{outline:none;box-shadow:0 0 0 3px var(--brand-100)}
.mobile-menu{display:none;border-top:1px solid var(--line);background:var(--surface)}
.mobile-menu a{
  display:flex;align-items:center;height:48px;padding:0 4px;font-size:15px;color:var(--body);
  border-bottom:1px solid var(--line);
}
.mobile-menu a:last-child{border-bottom:0}
.mobile-menu.is-open{display:block}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;padding:72px 0 88px;
  background-image:radial-gradient(620px 340px at 86% 12%, rgba(14,124,102,.06), transparent 70%);
}
.hero::after{
  content:"";position:absolute;right:-60px;top:-40px;width:320px;height:320px;pointer-events:none;
  background-image:repeating-linear-gradient(115deg, rgba(14,124,102,.04) 0 8px, transparent 8px 22px);
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;position:relative;z-index:1}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-900);font-size:13px;font-weight:600;margin-bottom:20px;
}
.hero h1{margin-bottom:18px}
.hero-sub{font-size:17px;line-height:30px;color:var(--body);max-width:520px;margin-bottom:28px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:18px}
.hero-proof{font-size:13px;line-height:20px;color:var(--muted)}
.hero-visual{position:relative}
.hero-visual .hero-img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-card);
  border:1px solid var(--line);box-shadow:var(--sh-2);background:var(--brand-100);
}
.hero-visual .hero-sub-img{
  position:absolute;right:-14px;bottom:-22px;width:46%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-img);border:5px solid var(--surface);box-shadow:var(--sh-3);background:var(--brand-100);
}

/* ---------- 服务 ---------- */
.services-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.svc{padding:24px;display:flex;flex-direction:column;position:relative;overflow:hidden}
.svc-a{grid-column:span 7}
.svc-b{grid-column:span 5}
.svc-c{grid-column:span 6;background:var(--brand-600);border-color:var(--brand-600);color:#fff}
.svc-d{grid-column:span 6}
.svc-a{flex-direction:row;gap:24px;align-items:center}
.svc-a .svc-body{flex:1 1 auto;min-width:0}
.svc-a .svc-media{flex:0 0 44%;border-radius:var(--r-img);overflow:hidden}
.svc-a .svc-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.svc-ico{
  width:40px;height:40px;border-radius:10px;background:var(--brand-100);color:var(--brand-900);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.svc-c .svc-ico{background:rgba(255,255,255,.16);color:#fff}
.svc h3{margin-bottom:10px}
.svc-c h3{color:#fff}
.svc p{font-size:15px;line-height:26px;color:var(--body);margin-bottom:16px}
.svc-c p{color:rgba(255,255,255,.86)}
.svc-list{margin-bottom:18px}
.svc-list li{
  position:relative;padding-left:16px;font-size:14px;line-height:24px;margin-bottom:10px;color:var(--body);
}
.svc-c .svc-list li{color:rgba(255,255,255,.86)}
.svc-list li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--brand-600);
}
.svc-c .svc-list li::before{background:var(--gold-500)}
.svc-more{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--brand-600);transition:var(--ease);
}
.svc-more svg{transition:transform var(--ease)}
.svc:hover .svc-more svg{transform:translateX(4px)}
.svc-c .svc-more{color:#fff}

/* ---------- 数据带 ---------- */
.stats{background:var(--dark);padding:72px 0;color:#fff}
.stats h2{color:#fff;padding-left:16px;position:relative;margin-bottom:12px}
.stats h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--brand-600);
}
.stats .stats-lead{color:rgba(255,255,255,.7);font-size:15px;line-height:24px;padding-left:16px;margin-bottom:36px;max-width:720px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:0 24px;border-left:1px solid rgba(255,255,255,.1)}
.stat:first-child{border-left:0;padding-left:0}
.stat-num{font-size:36px;line-height:44px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums}
.stat-num em{font-style:normal;font-size:16px;font-weight:600;color:var(--gold-500);margin-left:4px}
.stat:nth-child(2) .stat-num{color:var(--gold-500)}
.stat:nth-child(4) .stat-num{color:#7FD8C2}
.stat-desc{font-size:14px;line-height:24px;color:rgba(255,255,255,.7);margin-top:6px}

/* ---------- 案例马赛克 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(12,1fr);grid-auto-rows:244px;gap:24px}
.case{
  position:relative;overflow:hidden;border-radius:var(--r-card);border:1px solid var(--line);
  background:var(--surface);box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.case:hover{transform:translateY(-2px);box-shadow:var(--sh-3);border-color:rgba(14,124,102,.35)}
.case-media{position:relative;flex:1 1 auto;min-height:0;overflow:hidden;background:var(--brand-100)}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease}
.case:hover .case-media img{transform:scale(1.03)}
.case-media .badge{position:absolute;left:14px;top:14px}
.case-body{padding:16px 20px 20px;flex:0 0 auto}
.case-body h3{font-size:17px;line-height:26px;font-weight:600;margin-bottom:6px}
.case-body p{font-size:14px;line-height:24px;color:var(--muted);margin:0}
.case-a{grid-column:span 7;grid-row:span 2}
.case-b{grid-column:span 5}
.case-c{grid-column:span 5}
.case-d,.case-e,.case-f{grid-column:span 4}
.case-a .case-body h3{font-size:22px;line-height:30px}

/* ---------- 方案 ---------- */
.plan-grid{display:grid;grid-template-columns:4fr 8fr;gap:40px;align-items:start}
.plan-tabs{display:flex;flex-direction:column;gap:8px}
.plan-tab{
  display:flex;align-items:flex-start;gap:14px;text-align:left;width:100%;
  padding:16px 18px;border-radius:12px;border:1px solid transparent;border-left:3px solid transparent;
  background:transparent;color:var(--body);font-size:16px;font-weight:600;transition:var(--ease);
}
.plan-tab .tab-no{font-size:13px;font-weight:700;color:var(--muted);font-variant-numeric:tabular-nums;padding-top:2px}
.plan-tab small{display:block;font-size:13px;line-height:20px;font-weight:400;color:var(--muted);margin-top:4px}
.plan-tab:hover{background:var(--surface);border-color:var(--line)}
.plan-tab.is-active{background:var(--surface);border-color:var(--line);border-left-color:var(--brand-600);color:var(--brand-600);box-shadow:var(--sh-1)}
.plan-tab.is-active .tab-no{color:var(--brand-600)}
.plan-panel{display:none;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1)}
.plan-panel.is-active{display:block}
.plan-panel h3{margin-bottom:12px}
.plan-panel > p{font-size:15px;line-height:26px}
.plan-points{margin:20px 0 24px}
.plan-points li{position:relative;padding-left:18px;font-size:15px;line-height:26px;margin-bottom:10px}
.plan-points li::before{
  content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--brand-600);
}
.plan-figure{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line)}
.plan-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{display:flex;flex-direction:column;padding:16px;border-radius:var(--r-card)}
.news-thumb{
  width:100%;aspect-ratio:16/9;border-radius:var(--r-img);overflow:hidden;background:var(--brand-100);margin-bottom:14px;
}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-card .badge{align-self:flex-start;margin-bottom:12px}
.news-card h3{
  font-size:17px;line-height:26px;font-weight:600;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color var(--ease);
}
.news-card:hover h3{color:var(--brand-600)}
.news-card p{
  font-size:14px;line-height:24px;color:var(--body);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;line-height:20px;color:var(--muted);border-top:1px solid var(--line);padding-top:12px;
}
.news-meta .more{color:var(--brand-600);font-weight:600}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);min-height:200px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;
  padding:32px;background:var(--surface);
}
.empty-state .empty-ico{
  width:56px;height:56px;border-radius:16px;background:var(--brand-100);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.empty-state strong{display:block;font-size:16px;color:var(--ink);margin-bottom:6px}
.empty-state span{font-size:14px;line-height:24px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:40px;align-items:start}
.faq-intro p{font-size:15px;line-height:26px;color:var(--body);margin-top:16px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--bg);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:var(--ease);
}
.faq-item[open]{background:var(--surface);border-color:rgba(14,124,102,.35);box-shadow:var(--sh-1)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:16px 20px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";flex:0 0 16px;width:16px;height:16px;position:relative;
  background:
    linear-gradient(var(--brand-600),var(--brand-600)) center/16px 2px no-repeat,
    linear-gradient(var(--brand-600),var(--brand-600)) center/2px 16px no-repeat;
  transition:transform 240ms ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item summary:focus-visible{outline:none;box-shadow:inset 0 0 0 3px var(--brand-100)}
.faq-body{padding:0 20px 20px;font-size:15px;line-height:28px;color:var(--body)}
.faq-body a{color:var(--brand-600);font-weight:600;border-bottom:1px solid rgba(14,124,102,.35)}

/* ---------- 联系 ---------- */
.contact{background:var(--surface);border-top:1px solid var(--line)}
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.contact-list li{display:flex;gap:14px;align-items:flex-start;margin-bottom:22px}
.contact-ico{
  flex:0 0 36px;width:36px;height:36px;border-radius:50%;background:var(--brand-100);color:var(--brand-900);
  display:flex;align-items:center;justify-content:center;
}
.contact-list strong{display:block;font-size:14px;color:var(--ink);margin-bottom:2px}
.contact-list span{font-size:15px;line-height:24px;color:var(--body)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:14px;font-weight:600;color:var(--ink)}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;border-radius:var(--r-input);
  border:1px solid var(--line);background:var(--bg);color:var(--ink);font-size:15px;
  transition:var(--ease);appearance:none;
}
.field textarea{min-height:120px;resize:vertical;line-height:26px}
.field input::placeholder,.field textarea::placeholder{color:var(--muted)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-600);background:var(--surface);box-shadow:0 0 0 3px var(--brand-100);
}
.field select{background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);
  background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.form-actions{grid-column:1 / -1;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.form-note{font-size:13px;line-height:20px;color:var(--muted)}

/* ---------- CTA 条 ---------- */
.cta-band{background:var(--brand-600);border-radius:var(--r-card);padding:32px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta-band h3{color:#fff;font-size:22px;line-height:30px;margin-bottom:6px}
.cta-band p{color:rgba(255,255,255,.86);font-size:15px;line-height:24px;margin:0}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:64px 0 0;border-top:1px solid rgba(255,255,255,.08)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:48px}
.footer-brand .logo-text{color:#fff}
.footer-brand .logo-mark{background:var(--brand-600)}
.footer-desc{font-size:14px;line-height:24px;margin:16px 0 14px;color:rgba(255,255,255,.72)}
.footer-contact{font-size:14px;line-height:24px;color:rgba(255,255,255,.72)}
.footer-contact a:hover{color:#fff}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;line-height:24px;color:rgba(255,255,255,.72);transition:color var(--ease)}
.footer-col a:hover{color:#fff}
.qr-box{
  width:108px;height:108px;border:1px solid rgba(255,255,255,.28);border-radius:12px;
  display:flex;align-items:center;justify-content:center;font-size:13px;color:rgba(255,255,255,.5);text-align:center;line-height:20px;padding:10px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;line-height:20px;color:var(--muted);
}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1439px){:root{--container:1140px}}
@media (max-width:1199px){
  .case-a{grid-column:span 6}
  .case-b,.case-c{grid-column:span 6}
  .plan-grid{grid-template-columns:3fr 9fr;gap:28px}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .section-tight{padding:56px 0}
  .container{padding:0 24px}
  .nav-top{grid-template-columns:auto auto;grid-template-areas:"logo burger" "search search";height:auto;padding:12px 0;gap:12px}
  .logo{grid-area:logo}
  .nav-actions{grid-area:burger}
  .nav-actions .nav-link{display:none}
  .nav-toggle{display:inline-flex}
  .search{grid-area:search;max-width:none}
  .hero{padding:48px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:36px;line-height:44px}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .svc-a,.svc-b,.svc-c,.svc-d{grid-column:span 1}
  .svc-a{flex-direction:column;align-items:flex-start}
  .svc-a .svc-media{flex:none;width:100%}
  .stats{padding:56px 0}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .stat{padding:0 24px}
  .stat:nth-child(3){border-left:0;padding-left:0}
  .case-grid{grid-template-columns:repeat(2,1fr);grid-auto-rows:auto}
  .case-a,.case-b,.case-c,.case-d,.case-e,.case-f{grid-column:span 1;grid-row:auto}
  .case-media{aspect-ratio:16/10;flex:none}
  .case-a .case-body h3{font-size:19px;line-height:28px}
  .plan-grid{grid-template-columns:1fr;gap:24px}
  .plan-tabs{flex-direction:row;overflow-x:auto;padding-bottom:6px;scrollbar-width:none}
  .plan-tabs::-webkit-scrollbar{display:none}
  .plan-tab{flex:0 0 auto;border-left:0;border-bottom:3px solid transparent;padding:12px 16px}
  .plan-tab.is-active{border-left-color:transparent;border-bottom-color:var(--brand-600)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .faq-grid{grid-template-columns:1fr;gap:24px}
  .contact-grid{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .section{padding:48px 0}
  .container{padding:0 18px}
  .logo-text{font-size:16px}
  .nav-chips{display:none}
  .hero h1{font-size:28px;line-height:36px}
  .hero-sub{font-size:16px;line-height:28px}
  .hero-cta{display:grid;grid-template-columns:1fr 1fr;gap:12px}
  .hero-cta .btn{width:100%;padding:0 12px}
  .hero-visual .hero-sub-img{right:0;bottom:-14px;width:52%}
  h2{font-size:24px;line-height:32px}
  h3{font-size:19px;line-height:28px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px}
  .services-grid{grid-template-columns:1fr}
  .svc{padding:20px}
  .stats{padding:40px 0}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:24px 0}
  .stat-num{font-size:28px;line-height:36px}
  .case-grid{grid-template-columns:1fr}
  .plan-panel{padding:20px}
  .news-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .cta-band{padding:24px;flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr;gap:28px}
}
@media (max-width:479px){
  .container{padding:0 16px}
  .hero h1{font-size:26px;line-height:34px}
  .hero::after{display:none}
  .stat{padding:0 16px}
  .stats-grid{gap:20px 0}
}

/* roulang page: article */
:root{
  --brand-900:#0A5D4C;
  --brand-600:#0E7C66;
  --brand-100:#E3F2ED;
  --accent-500:#E4572E;
  --accent-100:#FDEDE7;
  --gold-500:#F4B740;
  --ink:#12171C;
  --body:#46525C;
  --muted:#8A949E;
  --line:#E4E1DA;
  --bg:#F7F5F1;
  --surface:#FFFFFF;
  --dark:#10161A;
  --r-card:14px;
  --r-img:12px;
  --r-field:12px;
  --shadow-sm:0 1px 2px rgba(18,23,28,.05);
  --shadow-card:0 10px 30px -14px rgba(18,23,28,.16);
  --shadow-hover:0 16px 36px -16px rgba(18,23,28,.22);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;color:var(--body);background:var(--bg);
  font-variant-numeric:tabular-nums;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.32;letter-spacing:.01em}
h1{font-size:40px}
h2{font-size:30px}
h3{font-size:22px;font-weight:600}
h4{font-size:18px;font-weight:600}
p{margin:0 0 1.2em}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-900)}
img{max-width:100%;display:block;border-radius:var(--r-img)}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:none;box-shadow:0 0 0 3px var(--brand-100);border-radius:8px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,241,.94);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-top{
  display:grid;grid-template-columns:auto minmax(280px,640px) auto;
  align-items:center;gap:24px;height:72px;
}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--brand-600);font-weight:700}
.logo:hover{color:var(--brand-900)}
.logo-mark{
  width:32px;height:32px;flex:0 0 32px;border-radius:9px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-600);color:#fff;
}
.logo-text{font-size:18px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.nav-search{
  position:relative;display:flex;align-items:center;width:100%;max-width:640px;
  height:46px;background:var(--surface);border:1px solid var(--line);
  border-radius:999px;padding:0 5px 0 44px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{border-color:var(--brand-600);box-shadow:0 0 0 3px var(--brand-100)}
.nav-search .search-icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--muted)}
.nav-search input{
  flex:1 1 auto;min-width:0;height:100%;border:0;background:transparent;
  outline:none;font-size:15px;color:var(--ink);
}
.nav-search input::placeholder{color:var(--muted)}
.nav-search .search-btn{
  flex:0 0 auto;height:36px;padding:0 20px;border:0;border-radius:999px;
  background:var(--brand-600);color:#fff;font-size:14px;font-weight:600;
  transition:background .2s ease,transform .2s ease;
}
.nav-search .search-btn:hover{background:var(--brand-900)}
.nav-search .search-btn:active{transform:translateY(1px)}
.header-links{display:flex;align-items:center;gap:22px;white-space:nowrap}
.header-links a{font-size:15px;font-weight:600;color:var(--ink)}
.header-links a:hover{color:var(--brand-600)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:var(--surface);align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.nav-chips-wrap{
  display:flex;align-items:center;gap:8px;
  padding-top:2px;padding-bottom:12px;overflow:hidden;
}
.nav-chips{
  display:flex;align-items:center;gap:8px;overflow-x:auto;
  scrollbar-width:none;-ms-overflow-style:none;padding:2px;
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;height:34px;padding:0 16px;border-radius:999px;
  display:inline-flex;align-items:center;
  background:var(--surface);border:1px solid var(--line);
  color:var(--body);font-size:14px;font-weight:600;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.chip:hover{background:var(--brand-100);color:var(--brand-900);border-color:rgba(14,124,102,.35)}
.chip.is-active{background:var(--brand-600);border-color:var(--brand-600);color:#fff}
.chip.is-active:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff}

.mobile-menu{display:none;border-top:1px solid var(--line);background:var(--surface)}
.mobile-menu a{
  display:flex;align-items:center;height:48px;padding:0 24px;
  border-bottom:1px solid var(--line);color:var(--ink);font-size:15px;font-weight:600;
}
.mobile-menu a.is-active{color:var(--brand-600);background:var(--brand-100)}
.mobile-menu.is-open{display:block}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--brand-600);color:#fff}
.btn-primary:hover{background:var(--brand-900);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--brand-600);color:var(--brand-600)}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-900)}
.btn-accent{background:var(--accent-500);color:#fff}
.btn-accent:hover{background:#c8461f;color:#fff;transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--brand-900)}
.btn-light:hover{background:var(--brand-100);color:var(--brand-900);transform:translateY(-1px)}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px}

/* ---------- badges / tags ---------- */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;background:var(--brand-100);color:var(--brand-900);
}
.badge-accent{background:var(--accent-100);color:var(--accent-500)}
.badge-gold{background:#FDF3DF;color:#8A6212}

/* ---------- article hero ---------- */
.article-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);background:var(--bg)}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;opacity:.1;
}
.article-hero::after{
  content:"";position:absolute;width:520px;height:520px;right:-160px;top:-260px;
  background:radial-gradient(circle,rgba(14,124,102,.16),rgba(14,124,102,0) 68%);
}
.article-hero .container{position:relative;z-index:1;padding-top:28px;padding-bottom:44px}

.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:20px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .sep{color:var(--muted);opacity:.7}
.breadcrumb .current{color:var(--ink);font-weight:600;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.article-title{
  font-size:40px;line-height:1.28;max-width:900px;
  overflow-wrap:break-word;word-break:break-word;
}
.article-title.is-long{font-size:26px;line-height:1.45}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  margin-top:20px;padding-top:18px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line)}

/* ---------- article body ---------- */
.article-main{padding:56px 0 24px}
.article-wrap{max-width:760px;margin:0 auto}
.article-body{font-size:17px;line-height:32px;color:var(--body);overflow-wrap:break-word}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  font-size:26px;line-height:1.4;margin:40px 0 16px;padding-left:14px;
  border-left:4px solid var(--brand-600);
}
.article-body h3{font-size:20px;line-height:1.5;margin:28px 0 12px}
.article-body h4{font-size:18px;margin:22px 0 10px}
.article-body ul{margin:0 0 1.2em;padding-left:22px}
.article-body ul li{position:relative;padding-left:14px;margin-bottom:10px;line-height:1.7}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:12px;width:6px;height:6px;
  border-radius:50%;background:var(--brand-600);
}
.article-body ol{margin:0 0 1.2em;padding-left:24px;list-style:decimal}
.article-body ol li{margin-bottom:10px;line-height:1.7}
.article-body ol li::marker{color:var(--brand-600);font-weight:700}
.article-body blockquote{
  margin:24px 0;padding:20px 24px;background:var(--brand-100);
  border-left:3px solid var(--brand-600);border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--ink);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{margin:24px auto;border-radius:var(--r-img)}
.article-body figure{margin:24px 0;overflow-x:auto}
.article-body figcaption{font-size:13px;line-height:20px;color:var(--muted);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;vertical-align:top}
.article-body th{background:var(--brand-100);color:var(--ink);font-weight:600}
.article-body tr{height:44px}
.article-body a{border-bottom:1px solid rgba(14,124,102,.35)}
.article-body code{
  background:var(--brand-100);color:var(--brand-900);
  padding:2px 6px;border-radius:6px;font-size:.94em;
}

/* ---------- empty state ---------- */
.empty-state{
  min-height:220px;border:1px dashed var(--line);border-radius:var(--r-card);
  background:var(--surface);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:36px 24px;
}
.empty-state .empty-icon{
  width:56px;height:56px;border-radius:16px;background:var(--brand-100);
  display:flex;align-items:center;justify-content:center;color:var(--brand-600);margin-bottom:16px;
}
.empty-state h3{font-size:19px;margin-bottom:8px}
.empty-state p{font-size:14px;color:var(--muted);margin-bottom:20px}

/* ---------- article footer ---------- */
.article-foot{padding:8px 0 0}
.article-foot .inner{max-width:760px;margin:0 auto}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;padding-top:24px;border-top:1px solid var(--line)}
.back-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:24px;
  font-size:15px;font-weight:600;color:var(--brand-600);
}
.back-link:hover{color:var(--brand-900)}
.back-link svg{transition:transform .2s ease}
.back-link:hover svg{transform:translateX(-4px)}

/* ---------- sections ---------- */
.section{padding:72px 0}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:32px;
}
.section-head h2{font-size:28px}
.section-head .more{font-size:15px;font-weight:600;white-space:nowrap}
.section-head .more::after{content:" →"}

/* related cards */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(14,124,102,.35)}
.card-media{position:relative;aspect-ratio:16/9;background:var(--brand-100);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-media .badge{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.94);color:var(--brand-900)}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1 1 auto}
.card-body h3{font-size:17px;line-height:1.5;font-weight:600;margin-bottom:10px}
.card-body h3 a{color:var(--ink);display:block}
.card-body h3 a:hover{color:var(--brand-600)}
.card-sum{font-size:14px;line-height:24px;color:var(--muted);margin-bottom:16px}
.card-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);padding-top:14px;border-top:1px solid var(--line);
}
.card-meta .read{color:var(--brand-600);font-weight:600}

/* ---------- CTA band ---------- */
.cta-band{background:var(--brand-600);color:#fff;border-radius:0}
.cta-band .container{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding-top:44px;padding-bottom:44px;
}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:8px}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;margin:0}
.cta-band .btn{flex:0 0 auto}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);margin-top:72px}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;
  padding:56px 0 40px;border-top:1px solid rgba(255,255,255,.08);
}
.site-footer .logo{color:#fff}
.site-footer .logo:hover{color:#fff}
.footer-desc{font-size:14px;line-height:24px;color:rgba(255,255,255,.62);margin:16px 0 12px;max-width:320px}
.footer-contact{font-size:14px;line-height:26px;color:rgba(255,255,255,.72);margin:0}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{color:rgba(255,255,255,.72);font-size:14px}
.footer-col ul a:hover{color:#fff}
.qr-box{
  width:120px;height:120px;border:1px solid rgba(255,255,255,.18);border-radius:12px;
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;line-height:20px;color:rgba(255,255,255,.55);padding:12px;
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.62);font-size:13px}
.footer-bottom a:hover{color:#fff}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container{padding:0 24px}
  h1{font-size:36px}
  .article-title{font-size:34px}
}
@media (max-width:1023px){
  .header-top{
    grid-template-columns:auto auto;grid-template-areas:"logo toggle" "search search";
    height:auto;padding-top:12px;row-gap:12px;
  }
  .logo{grid-area:logo}
  .nav-toggle{grid-area:toggle;display:inline-flex;justify-self:end}
  .nav-search{grid-area:search;max-width:none}
  .header-links{display:none}
  .nav-chips-wrap{padding-bottom:10px}
  .article-main{padding:44px 0 16px}
  .section{padding:56px 0}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr);padding:48px 0 32px}
  .cta-band .container{flex-direction:column;align-items:flex-start;gap:20px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  h1{font-size:28px;line-height:1.32}
  h2{font-size:24px}
  h3{font-size:19px}
  body{font-size:15px;line-height:1.7}
  .logo-text{font-size:16px}
  .article-hero .container{padding-top:20px;padding-bottom:32px}
  .article-title{font-size:26px}
  .article-title.is-long{font-size:22px}
  .article-body{font-size:16px;line-height:30px}
  .article-body h2{font-size:22px;margin-top:32px}
  .article-body h3{font-size:18px;margin-top:24px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .section{padding:48px 0}
  .card-grid{grid-template-columns:1fr;gap:18px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px}
  .section-head h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .site-footer{margin-top:48px}
  .cta-band .container{padding-top:32px;padding-bottom:32px}
  .cta-band h2{font-size:21px}
}
@media (max-width:479px){
  .container{padding:0 16px}
  .article-hero::after{display:none}
  .article-title{font-size:24px}
  .btn{min-height:44px;padding:0 22px}
}

/* roulang page: category1 */
:root{
  --brand-900:#0A5D4C;
  --brand-600:#0E7C66;
  --brand-100:#E3F2ED;
  --accent-500:#E4572E;
  --accent-100:#FDEDE7;
  --gold-500:#F4B740;
  --ink:#12171C;
  --body:#46525C;
  --muted:#8A949E;
  --line:#E4E1DA;
  --bg:#F7F5F1;
  --surface:#FFFFFF;
  --dark:#10161A;
  --radius:14px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(18,23,28,.05);
  --shadow-card:0 10px 30px -14px rgba(18,23,28,.16);
  --shadow-hover:0 16px 36px -16px rgba(18,23,28,.22);
  --space-section:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--body);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:28px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-900)}
button{font-family:inherit}
h1,h2,h3,h4{color:var(--ink);margin:0;letter-spacing:.01em}
h1{font-size:40px;line-height:48px;font-weight:700}
h2{font-size:30px;line-height:38px;font-weight:700}
h3{font-size:22px;line-height:30px;font-weight:600}
h4{font-size:18px;line-height:26px;font-weight:600}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums}
.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}
.section{padding:var(--space-section) 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head h2{position:relative;padding-left:16px}
.section-head h2::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:2px;background:var(--brand-600)}
.section-head .side-link{font-size:15px;font-weight:600;white-space:nowrap}
.lead{font-size:17px;line-height:32px;color:var(--body)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 12px;border-radius:var(--radius-pill);background:var(--brand-100);color:var(--brand-900);font-size:12px;font-weight:600;letter-spacing:.02em}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--radius-pill);background:var(--brand-100);color:var(--brand-900);font-size:12px;font-weight:600}
.badge-accent{background:var(--accent-100);color:var(--accent-500)}
.badge-gold{background:#FEF4DF;color:#8A6100}
.muted{color:var(--muted);font-size:13px;line-height:20px}
:focus-visible{outline:none;box-shadow:0 0 0 3px var(--brand-100);border-radius:6px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 26px;border-radius:var(--radius-pill);border:1px solid transparent;font-size:15px;font-weight:600;cursor:pointer;transition:background .22s ease,color .22s ease,transform .18s ease,box-shadow .22s ease,border-color .22s ease}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--brand-900);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-card)}
.btn-accent{background:var(--accent-500);color:#fff}
.btn-accent:hover{background:#C9451F;color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:rgba(14,124,102,.45);color:var(--brand-900)}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-900)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.arrow-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-600)}
.arrow-link svg{transition:transform .22s ease}
.arrow-link:hover svg{transform:translateX(4px)}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(247,245,241,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-top{display:grid;grid-template-columns:auto minmax(280px,640px) auto;align-items:center;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--brand-600)}
.logo:hover{color:var(--brand-900)}
.logo-mark{width:30px;height:30px;border-radius:9px;background:var(--brand-600);color:#fff;display:inline-flex;align-items:center;justify-content:center;flex:none}
.logo-text{font-size:18px;font-weight:700;color:var(--brand-600);letter-spacing:.01em;white-space:nowrap}
.logo:hover .logo-text{color:var(--brand-900)}
.search{position:relative;display:flex;align-items:center;height:46px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-pill);padding:0 4px 0 44px;transition:border-color .2s ease,box-shadow .2s ease}
.search:focus-within{border-color:rgba(14,124,102,.5);box-shadow:0 0 0 3px var(--brand-100)}
.search-icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--muted);display:flex}
.search input{flex:1;min-width:0;height:100%;border:0;background:transparent;font-size:15px;color:var(--ink);outline:none}
.search input::placeholder{color:var(--muted)}
.search button{height:38px;padding:0 20px;border:0;border-radius:var(--radius-pill);background:var(--brand-600);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:background .2s ease}
.search button:hover{background:var(--brand-900)}
.nav-links{display:flex;align-items:center;gap:18px}
.nav-links a{font-size:15px;font-weight:600;color:var(--ink)}
.nav-links a:hover{color:var(--brand-600)}
.menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--ink);align-items:center;justify-content:center;cursor:pointer}
.nav-chips-wrap{padding-bottom:10px}
.nav-chips{display:flex;gap:10px;overflow-x:auto;padding:2px 0 4px;scrollbar-width:none}
.nav-chips::-webkit-scrollbar{display:none}
.chip{display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:var(--radius-pill);background:var(--surface);border:1px solid var(--line);color:var(--body);font-size:14px;font-weight:600;white-space:nowrap;transition:background .2s ease,color .2s ease,border-color .2s ease}
.chip:hover{color:var(--brand-900);border-color:rgba(14,124,102,.35);background:var(--brand-100)}
.chip.is-active{background:var(--brand-600);border-color:var(--brand-600);color:#fff}
.chip.is-active:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff}
.mobile-panel{display:none;border-top:1px solid var(--line);background:var(--surface)}
.mobile-panel.is-open{display:block}
.mobile-panel a{display:block;line-height:48px;padding:0 32px;border-bottom:1px solid var(--line);color:var(--ink);font-size:15px;font-weight:600}
.mobile-panel a:hover{background:var(--brand-100);color:var(--brand-900)}

/* 页头 */
.page-hero{position:relative;border-bottom:1px solid var(--line);background-image:linear-gradient(180deg,rgba(227,242,237,.94),rgba(247,245,241,.97)),url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;overflow:hidden}
.page-hero::after{content:"";position:absolute;right:-40px;top:-60px;width:420px;height:320px;background:repeating-linear-gradient(115deg,rgba(14,124,102,.04) 0 10px,transparent 10px 22px);pointer-events:none}
.page-hero .container{position:relative;z-index:1;padding-top:44px;padding-bottom:52px;min-height:280px;display:flex;flex-direction:column;justify-content:center}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:16px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--ink);font-weight:600}
.page-hero h1{max-width:820px;margin-bottom:16px}
.page-hero .hero-sub{max-width:720px;font-size:16px;line-height:30px;color:var(--body)}
.page-hero .hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}

/* 分栏图文 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.figure{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--brand-100);box-shadow:var(--shadow-card)}
.figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.figure figcaption{padding:12px 16px;font-size:13px;line-height:20px;color:var(--muted);background:var(--surface);border-top:1px solid var(--line)}
.split h2{margin-bottom:18px}
.split .lead{margin-bottom:24px}
.mini-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:28px;padding-top:24px;border-top:1px solid var(--line)}
.mini-stats div strong{display:block;font-size:26px;line-height:34px;color:var(--accent-500);font-weight:700;font-variant-numeric:tabular-nums}
.mini-stats div span{font-size:14px;color:var(--muted)}

/* 要点列表 */
.points{display:grid;gap:20px}
.points li{display:flex;gap:16px;padding:22px 24px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease}
.points li:hover{transform:translateY(-2px);box-shadow:var(--shadow-card);border-color:rgba(14,124,102,.35)}
.points .dot{width:8px;height:8px;border-radius:50%;background:var(--brand-600);flex:none;margin-top:12px}
.points h3{margin-bottom:8px;font-size:19px;line-height:28px}
.points p{font-size:15px;line-height:26px;color:var(--body)}

/* 信息表 */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow-sm)}
table.data-table{width:100%;border-collapse:collapse;min-width:680px}
table.data-table caption{text-align:left;padding:18px 22px 0;font-size:14px;color:var(--muted)}
table.data-table th,table.data-table td{padding:0 22px;height:52px;text-align:left;font-size:15px;border-bottom:1px solid var(--line);white-space:nowrap}
table.data-table th{background:var(--brand-100);color:var(--brand-900);font-weight:600;font-size:14px;height:48px}
table.data-table tbody tr:last-child td{border-bottom:0}
table.data-table tbody tr:hover{background:#FBFDFC}
table.data-table td strong{color:var(--ink);font-weight:600}
table.data-table .num{color:var(--accent-500);font-weight:700}

/* 深色数据带 */
.dark-band{background:var(--dark);padding:72px 0}
.dark-band h2{color:#fff}
.dark-band .band-sub{color:rgba(255,255,255,.7);font-size:15px;line-height:26px;margin-top:14px;max-width:640px}
.band-grid{display:grid;grid-template-columns:repeat(4,1fr);margin-top:44px}
.band-grid .item{padding:0 28px;border-left:1px solid rgba(255,255,255,.1)}
.band-grid .item:first-child{border-left:0;padding-left:0}
.band-grid .item strong{display:block;font-size:36px;line-height:44px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums}
.band-grid .item strong em{font-style:normal;font-size:18px;font-weight:600;color:rgba(255,255,255,.75);margin-left:6px}
.band-grid .item:nth-child(1) strong{color:var(--brand-100)}
.band-grid .item:nth-child(2) strong{color:var(--accent-500)}
.band-grid .item:nth-child(4) strong{color:var(--gold-500)}
.band-grid .item span{display:block;margin-top:10px;font-size:14px;line-height:24px;color:rgba(255,255,255,.7)}

/* 标签组 */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.tag{display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--radius-pill);background:var(--surface);border:1px solid var(--line);font-size:14px;color:var(--body);transition:border-color .2s ease,color .2s ease,background .2s ease}
.tag:hover{border-color:rgba(14,124,102,.35);color:var(--brand-900);background:var(--brand-100)}

/* FAQ */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px}
.faq-list{display:grid;gap:12px}
.faq-item{background:#F2F0EB;border:1px solid transparent;border-radius:var(--radius-sm);overflow:hidden;transition:background .22s ease,border-color .22s ease}
.faq-item[open]{background:var(--surface);border-color:var(--line);box-shadow:var(--shadow-sm)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:58px;padding:12px 20px;cursor:pointer;list-style:none;font-size:16px;font-weight:600;color:var(--ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-plus{position:relative;width:18px;height:18px;flex:none;transition:transform .24s ease}
.faq-plus::before,.faq-plus::after{content:"";position:absolute;background:var(--brand-600);border-radius:2px}
.faq-plus::before{left:0;right:0;top:8px;height:2px}
.faq-plus::after{top:0;bottom:0;left:8px;width:2px}
.faq-item[open] .faq-plus{transform:rotate(45deg)}
.faq-body{padding:0 20px 20px;font-size:15px;line-height:28px;color:var(--body)}
.faq-body a{font-weight:600}

/* CTA */
.cta-band{background:var(--brand-600);border-radius:var(--radius);padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:32px;box-shadow:var(--shadow-card)}
.cta-band h2{color:#fff;font-size:26px;line-height:36px;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;line-height:26px;margin:0}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.6);color:#fff}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff}

/* 相邻分类 */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px}
.related-card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease}
.related-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card);border-color:rgba(14,124,102,.35)}
.related-card h3{font-size:18px;line-height:26px;margin:12px 0 8px}
.related-card p{font-size:14px;line-height:24px;color:var(--body);margin:0}
.back-row{display:flex;flex-wrap:wrap;gap:20px;align-items:center;margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
.back-row a{font-size:15px;font-weight:600;color:var(--brand-600);display:inline-flex;align-items:center;gap:6px}

/* 页脚 */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:64px 0 0;border-top:1px solid rgba(255,255,255,.08)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer-brand .logo-mark{background:var(--brand-600)}
.footer-brand .logo-text{color:#fff}
.footer-desc{margin:18px 0 14px;font-size:14px;line-height:26px;color:rgba(255,255,255,.62)}
.footer-contact{font-size:14px;line-height:26px;color:rgba(255,255,255,.62);margin:0}
.footer-contact .num{color:#fff;font-weight:600}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px}
.footer-col ul{display:grid;gap:12px}
.footer-col a{color:rgba(255,255,255,.66);font-size:14px}
.footer-col a:hover{color:#fff}
.qr-box{width:120px;height:120px;border:1px solid rgba(255,255,255,.18);border-radius:12px;display:flex;align-items:center;justify-content:center;text-align:center;font-size:12px;line-height:20px;color:rgba(255,255,255,.5);padding:10px}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;margin-top:48px;padding:20px 0;border-top:1px solid rgba(255,255,255,.08);font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom a{color:rgba(255,255,255,.62);font-size:13px}
.footer-bottom a:hover{color:#fff}

/* 响应式 */
@media (max-width:1439px){
  .container{max-width:1140px}
}
@media (max-width:1199px){
  .container{max-width:100%}
  .band-grid .item{padding:0 20px}
}
@media (max-width:1023px){
  :root{--space-section:64px}
  .nav-top{grid-template-columns:auto auto;justify-content:space-between;height:64px;gap:16px}
  .search{grid-column:1 / -1;order:3;height:44px;margin-bottom:12px}
  .nav-top{padding-top:10px}
  .nav-links a{display:none}
  .menu-toggle{display:inline-flex}
  .nav-chips-wrap{padding-bottom:8px}
  .split{grid-template-columns:1fr;gap:32px}
  .split .figure{order:-1}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  h1{font-size:32px;line-height:42px}
  .page-hero h1{font-size:32px;line-height:42px}
  .band-grid{grid-template-columns:repeat(2,1fr);gap:32px 0}
  .band-grid .item:nth-child(3){border-left:0;padding-left:0}
  .band-grid .item:nth-child(odd){border-left:0;padding-left:0}
  .related-grid{grid-template-columns:1fr 1fr}
  .dark-band{padding:56px 0}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 28px}
}
@media (max-width:767px){
  :root{--space-section:48px}
  .container{padding:0 24px}
  h1{font-size:28px;line-height:36px}
  h2{font-size:24px;line-height:32px}
  h3{font-size:19px;line-height:28px}
  body{font-size:15px;line-height:26px}
  .page-hero .container{min-height:240px;padding-top:32px;padding-bottom:40px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
  .nav-chips{mask-image:linear-gradient(90deg,transparent 0,#000 8px,#000 calc(100% - 8px),transparent 100%)}
  .related-grid{grid-template-columns:1fr}
  .band-grid{grid-template-columns:1fr 1fr;gap:28px 0}
  .dark-band{padding:40px 0}
  .cta-band{border-radius:12px}
}
@media (max-width:479px){
  .container{padding:0 16px}
  h1{font-size:26px;line-height:34px}
  .page-hero h1{font-size:26px;line-height:34px}
  .logo-text{font-size:16px}
  .page-hero::after,.page-hero .hero-meta{display:none}
  .band-grid{grid-template-columns:1fr}
  .band-grid .item{border-left:0;padding-left:0;border-top:1px solid rgba(255,255,255,.1);padding-top:20px}
  .band-grid .item:first-child{border-top:0;padding-top:0}
  .mini-stats{gap:20px}
}

/* roulang page: category2 */
*,*::before,*::after{box-sizing:border-box}
:root{
  --brand-900:#0A5D4C;--brand-600:#0E7C66;--brand-100:#E3F2ED;
  --accent-500:#E4572E;--accent-100:#FDEDE7;--gold-500:#F4B740;
  --ink:#12171C;--body:#46525C;--muted:#8A949E;--line:#E4E1DA;
  --bg:#F7F5F1;--surface:#FFFFFF;--dark:#10161A;
  --r-card:14px;--r-img:12px;--r-input:12px;
  --sh-1:0 1px 2px rgba(18,23,28,.05);
  --sh-2:0 10px 30px -14px rgba(18,23,28,.16);
  --sh-3:0 16px 36px -16px rgba(18,23,28,.22);
  --container:1200px;--t:240ms ease;
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--body);font-size:16px;line-height:1.75;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.35;letter-spacing:.01em}
h1{font-size:40px;line-height:1.2}
h2{font-size:30px;line-height:1.3}
h3{font-size:22px;font-weight:600;line-height:1.4}
h4{font-size:18px;font-weight:600}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand-600);text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t)}
a:hover{color:var(--brand-900)}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input,select,textarea{font:inherit;color:var(--ink)}
.num,.step-num,th,td{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid rgba(14,124,102,.65);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(247,245,241,.94);
  backdrop-filter:blur(10px) saturate(150%);-webkit-backdrop-filter:blur(10px) saturate(150%);
  border-bottom:1px solid var(--line)}
.header-top-inner{display:grid;grid-template-columns:auto minmax(280px,640px) auto;
  align-items:center;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--brand-600);font-weight:700}
.logo-mark{width:30px;height:30px;flex:0 0 auto;border-radius:9px;background:var(--brand-100);
  color:var(--brand-600);display:grid;place-items:center}
.logo-text{font-size:18px;font-weight:700;letter-spacing:.02em;white-space:nowrap}
.search{position:relative;display:flex;align-items:center;height:46px;padding:0 4px 0 42px;
  background:var(--surface);border:1px solid var(--line);border-radius:999px;
  transition:border-color var(--t),box-shadow var(--t)}
.search:focus-within{border-color:var(--brand-600);box-shadow:0 0 0 3px var(--brand-100)}
.search-icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--muted);display:grid;place-items:center}
.search input{flex:1;min-width:0;height:100%;border:0;background:none;font-size:14px}
.search input::placeholder{color:var(--muted)}
.search input:focus{outline:none}
.search-btn{flex:0 0 auto;height:38px;padding:0 18px;border-radius:999px;background:var(--brand-600);
  color:#fff;font-size:14px;font-weight:600;transition:background var(--t)}
.search-btn:hover{background:var(--brand-900)}
.header-quick{display:flex;align-items:center;gap:20px;justify-self:end;font-size:14px;font-weight:600}
.header-quick a{color:var(--ink)}
.header-quick a:hover{color:var(--brand-600)}
.menu-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);align-items:center;justify-content:center;color:var(--ink)}
.menu-toggle:hover{border-color:rgba(14,124,102,.35)}
.header-chips{border-top:1px solid var(--line)}
.chips-wrap{position:relative}
.chips-wrap::before,.chips-wrap::after{content:"";position:absolute;top:6px;bottom:6px;width:26px;
  pointer-events:none;opacity:0;transition:opacity .2s}
.nav-chips{display:flex;gap:10px;padding:10px 0;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.nav-chips::-webkit-scrollbar{display:none}
.chip{flex:0 0 auto;display:inline-flex;align-items:center;height:34px;padding:0 18px;border-radius:999px;
  background:var(--brand-100);color:#0C4F42;font-size:14px;font-weight:600;
  transition:background var(--t),color var(--t)}
.chip:hover{background:#D3E9E1;color:var(--brand-900)}
.chip.is-active{background:var(--brand-600);color:#fff}
.chip.is-active:hover{background:var(--brand-900);color:#fff}
.mobile-panel{display:none;background:var(--surface);border-top:1px solid var(--line)}
.mobile-panel.is-open{display:block}
.mobile-panel a{display:flex;align-items:center;min-height:48px;padding:0 6px;border-bottom:1px solid var(--line);
  color:var(--ink);font-size:15px;font-weight:600}
.mobile-panel a:last-child{border-bottom:0}
.mobile-panel a:hover{color:var(--brand-600)}

/* ---------- 页面头部带状区 ---------- */
.page-band{position:relative;overflow:hidden;padding:56px 0;border-bottom:1px solid var(--line);
  background:radial-gradient(120% 130% at 88% 6%,rgba(14,124,102,.10),rgba(247,245,241,0) 58%),var(--bg)}
.band-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;min-height:264px}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:18px;
  font-size:14px;color:var(--muted)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .sep{color:#CFCAC1}
.breadcrumb .current{color:var(--ink);font-weight:600}
.band-tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;margin-bottom:16px;
  border-radius:999px;background:var(--accent-100);color:var(--accent-500);font-size:12px;font-weight:600}
.band-text h1{margin-bottom:16px}
.band-lede{max-width:56ch;margin-bottom:24px;font-size:17px;line-height:1.85}
.band-actions{display:flex;flex-wrap:wrap;gap:14px}
.band-media{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-2)}
.band-media img{width:100%;aspect-ratio:16/10;object-fit:cover}

/* ---------- 通用按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;
  padding:0 26px;border:1px solid transparent;border-radius:999px;font-size:15px;font-weight:600;
  transition:background-color var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand-600);color:#fff}
.btn-primary:hover{background:var(--brand-900);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--brand-600);color:var(--brand-600)}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-900)}
.btn-accent{background:var(--accent-500);color:#fff}
.btn-accent:hover{background:#C9451F;color:#fff;transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--brand-900)}
.btn-light:hover{background:#EAF6F2;color:var(--brand-900);transform:translateY(-1px)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  flex-wrap:wrap;margin-bottom:40px}
.section-head h2{position:relative;padding-left:16px}
.section-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:2px;background:var(--brand-600)}
.section-sub{padding-left:16px;margin:10px 0 0;max-width:62ch;font-size:15px;color:var(--muted)}
.section-link{font-size:14px;font-weight:600;white-space:nowrap}

/* ---------- 步骤列表 ---------- */
.step-list{border-top:1px dashed var(--line)}
.step-item{display:grid;grid-template-columns:96px 1fr;gap:28px;padding:32px 0;
  border-bottom:1px dashed var(--line)}
.step-num{font-size:38px;font-weight:700;line-height:1;color:var(--brand-600);letter-spacing:.02em}
.step-body h3{margin-bottom:10px}
.step-body p{max-width:74ch;margin-bottom:14px;font-size:15px}
.dot-list li{position:relative;padding-left:18px;margin-bottom:8px;font-size:14px;line-height:1.7;color:var(--muted)}
.dot-list li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--brand-600)}

/* ---------- 卡片 ---------- */
.grid-2x2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.mini-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.mini-card:hover{transform:translateY(-2px);box-shadow:var(--sh-3);border-color:rgba(14,124,102,.35)}
.mini-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);margin-bottom:18px;background:var(--brand-100)}
.mini-card .icon-box{width:40px;height:40px;margin-bottom:16px;border-radius:10px;background:var(--brand-100);
  color:var(--brand-600);display:grid;place-items:center}
.mini-card h3{margin-bottom:8px;font-size:19px}
.mini-card p{margin-bottom:14px;font-size:14px;line-height:1.8}
.card-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600}
.card-link .arrow{transition:transform var(--t)}
.mini-card:hover .card-link .arrow{transform:translateX(4px)}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1)}
table{width:100%;min-width:680px;border-collapse:collapse}
thead th{height:48px;padding:0 20px;background:var(--brand-100);color:#0C4F42;font-size:14px;
  font-weight:600;text-align:left;white-space:nowrap}
tbody td{padding:14px 20px;border-top:1px solid var(--line);font-size:15px;color:var(--body)}
tbody td strong{color:var(--ink);font-weight:600}
tbody tr{transition:background-color var(--t)}
tbody tr:hover{background:#FAFBF9}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-intro h2{position:relative;padding-left:16px}
.faq-intro h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:2px;background:var(--brand-600)}
.faq-intro p{margin-top:14px;padding-left:16px;font-size:15px;color:var(--muted)}
.faq-item{margin-bottom:12px;border:1px solid transparent;border-radius:12px;overflow:hidden;
  background:#F1EFEA;transition:background-color var(--t),border-color var(--t),box-shadow var(--t)}
.faq-item[open]{background:var(--surface);border-color:var(--line);box-shadow:var(--sh-2)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;font-size:15px;font-weight:600;color:var(--ink);
  cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 auto;transition:transform var(--t)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;
  background:var(--brand-600);border-radius:2px}
.faq-icon::before{width:16px;height:2px;transform:translate(-50%,-50%)}
.faq-icon::after{width:2px;height:16px;transform:translate(-50%,-50%)}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-answer{padding:0 20px 18px;font-size:15px;line-height:1.85;color:var(--body)}
.faq-answer a{font-weight:600}

/* ---------- CTA 带 ---------- */
.cta-band{padding:56px 0;background:var(--brand-600);color:#fff}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{margin-bottom:8px;font-size:26px;color:#fff}
.cta-band p{margin:0;max-width:64ch;font-size:15px;color:rgba(255,255,255,.85)}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 相邻分类 ---------- */
.adjacent{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-bottom:32px}
.adj-card{display:flex;align-items:center;gap:18px;padding:22px 24px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);color:var(--body);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.adj-card:hover{transform:translateY(-2px);box-shadow:var(--sh-3);border-color:rgba(14,124,102,.35);color:var(--body)}
.adj-thumb{width:64px;height:64px;flex:0 0 auto;border-radius:12px;overflow:hidden;background:var(--brand-100)}
.adj-thumb img{width:100%;height:100%;object-fit:cover}
.adj-card h3{margin-bottom:4px;font-size:17px}
.adj-card span{font-size:13px;color:var(--muted)}
.back-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:0;background:var(--dark);color:rgba(255,255,255,.68)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;
  padding:64px 0 48px;border-top:1px solid rgba(255,255,255,.08)}
.footer-brand .logo{color:#fff}
.footer-brand .logo-mark{background:rgba(255,255,255,.1);color:#7FD3BC}
.footer-brand .logo-text{color:#fff;font-size:17px}
.footer-desc{margin:16px 0 14px;max-width:34ch;font-size:14px;color:rgba(255,255,255,.6)}
.footer-contact{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6)}
.footer-contact .num{font-weight:600;color:#fff}
.footer-col h4{margin-bottom:16px;font-size:15px;color:#fff}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66)}
.footer-col a:hover{color:#fff}
.qr-box{width:118px;height:118px;padding:12px;border:1px solid rgba(255,255,255,.2);border-radius:12px;
  display:grid;place-items:center;text-align:center;font-size:13px;line-height:1.6;color:rgba(255,255,255,.5)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0;border-top:1px solid rgba(255,255,255,.08);font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom a{font-size:13px;color:rgba(255,255,255,.62)}
.footer-bottom a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1439px){:root{--container:1140px}}
@media (max-width:1199px){
  :root{--container:1060px}
  .band-inner{gap:32px}
  .section{padding:72px 0}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:64px 0}
  .header-top-inner{grid-template-columns:1fr auto;grid-template-rows:auto auto;
    height:auto;padding:12px 0;gap:12px}
  .logo{grid-column:1;grid-row:1}
  .header-quick{grid-column:2;grid-row:1}
  .search{grid-column:1 / -1;grid-row:2;max-width:none;height:44px}
  .band-inner{grid-template-columns:1fr;gap:28px}
  .grid-2x2{grid-template-columns:1fr}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:52px 0 36px}
  h1{font-size:32px}
  h2{font-size:26px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:48px 0}
  h1{font-size:28px;line-height:1.3}
  h2{font-size:24px;line-height:1.35}
  h3{font-size:19px}
  .logo-text{font-size:16px}
  .header-quick a{display:none}
  .menu-toggle{display:inline-flex}
  .chips-wrap::before,.chips-wrap::after{opacity:1}
  .chips-wrap::before{left:0;background:linear-gradient(90deg,var(--bg),rgba(247,245,241,0))}
  .chips-wrap::after{right:0;background:linear-gradient(270deg,var(--bg),rgba(247,245,241,0))}
  .page-band{padding:32px 0}
  .band-lede{font-size:16px}
  .step-item{grid-template-columns:1fr;gap:10px;padding:24px 0}
  .step-num{font-size:30px}
  .cta-band{padding:40px 0}
  .adjacent{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;padding:44px 0 32px}
}
@media (max-width:479px){
  .container{padding:0 16px}
  h1{font-size:26px}
  .band-actions{flex-direction:column}
  .band-actions .btn{width:100%}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
}

/* roulang page: category3 */
:root{
  --brand-900:#0A5D4C;
  --brand-600:#0E7C66;
  --brand-100:#E3F2ED;
  --accent-500:#E4572E;
  --accent-100:#FDEDE7;
  --gold-500:#F4B740;
  --ink:#12171C;
  --body:#46525C;
  --muted:#8A949E;
  --line:#E4E1DA;
  --bg:#F7F5F1;
  --surface:#FFFFFF;
  --dark:#10161A;
  --radius-card:14px;
  --radius-img:12px;
  --radius-input:12px;
  --shadow-sm:0 1px 2px rgba(18,23,28,.05);
  --shadow-card:0 10px 30px -14px rgba(18,23,28,.16);
  --shadow-hover:0 16px 36px -16px rgba(18,23,28,.22);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:.01em;line-height:1.3;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;font-size:inherit;}
input,select,textarea{font-family:inherit;}
.num{font-variant-numeric:tabular-nums;}

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

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,241,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-main{
  display:grid;
  grid-template-columns:auto minmax(280px,640px) auto;
  align-items:center;
  gap:24px;
  height:72px;
}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--brand-600);font-size:18px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.logo-mark{
  width:30px;height:30px;border-radius:9px;
  background:var(--brand-600);color:#fff;
  display:grid;place-items:center;flex:0 0 auto;
}
.logo-text{line-height:1;}

.search-box{
  position:relative;
  display:flex;align-items:center;
  width:100%;max-width:640px;height:46px;
  padding-left:44px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:var(--shadow-sm);
  transition:box-shadow .2s ease,border-color .2s ease;
}
.search-box .search-icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--muted);pointer-events:none;}
.search-box input{
  flex:1 1 auto;min-width:0;height:100%;
  border:0;background:transparent;outline:none;
  font-size:15px;color:var(--ink);
}
.search-box input::placeholder{color:var(--muted);}
.search-box button{
  flex:0 0 auto;height:36px;margin-right:5px;padding:0 20px;
  border:0;border-radius:999px;
  background:var(--brand-600);color:#fff;
  font-size:14px;font-weight:600;cursor:pointer;
  transition:background .2s ease;
}
.search-box button:hover{background:var(--brand-900);}
.search-box:focus-within{border-color:rgba(14,124,102,.45);box-shadow:0 0 0 3px var(--brand-100);}

.header-actions{display:flex;align-items:center;gap:8px;justify-self:end;}
.header-actions a{
  display:inline-flex;align-items:center;height:40px;padding:0 14px;
  border-radius:999px;font-size:14px;font-weight:600;color:var(--ink);
  transition:background .2s ease,color .2s ease;
}
.header-actions a:hover{background:var(--brand-100);color:var(--brand-900);}
.menu-toggle{
  display:none;width:44px;height:44px;
  align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:12px;
  background:var(--surface);color:var(--ink);cursor:pointer;
}
.menu-toggle:hover{border-color:rgba(14,124,102,.35);color:var(--brand-600);}

.chips-wrap{position:relative;}
.nav-chips{
  display:flex;align-items:center;gap:10px;
  padding:10px 0 14px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;
  display:inline-flex;align-items:center;
  height:36px;padding:0 16px;
  border-radius:999px;
  background:var(--surface);
  border:1px solid var(--line);
  color:var(--body);
  font-size:14px;font-weight:500;
  transition:background .22s ease,color .22s ease,border-color .22s ease;
}
.chip:hover{color:var(--brand-600);border-color:rgba(14,124,102,.35);}
.chip.is-active{background:var(--brand-600);border-color:var(--brand-600);color:#fff;font-weight:600;}

.mobile-panel{display:none;border-top:1px solid var(--line);background:var(--surface);padding:6px 0 10px;}
.mobile-panel.is-open{display:block;}
.mobile-panel a{
  display:flex;align-items:center;height:48px;
  font-size:15px;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-panel a:last-child{border-bottom:0;}

a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:none;box-shadow:0 0 0 3px rgba(14,124,102,.22);
}

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--bg);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(640px 320px at 82% 10%,rgba(14,124,102,.10),transparent 68%);
  pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;right:-60px;top:-40px;width:420px;height:420px;
  background:repeating-linear-gradient(115deg,rgba(14,124,102,.04) 0 2px,transparent 2px 18px);
  transform:rotate(6deg);pointer-events:none;
}
.page-hero-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:7fr 5fr;
  gap:48px;align-items:center;
  padding:56px 0 60px;
  min-height:300px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;line-height:1.6;color:var(--muted);margin-bottom:18px;}
.breadcrumb a{color:var(--muted);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--ink);font-weight:600;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;background:var(--brand-100);color:var(--brand-900);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge.accent{background:var(--accent-100);color:var(--accent-500);}
.page-hero h1{
  font-size:40px;line-height:1.2;font-weight:700;
  margin:0 0 18px;
  max-width:640px;
}
.hero-lead{
  font-size:17px;line-height:1.85;color:var(--body);
  max-width:640px;margin:0 0 26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-note{margin:18px 0 0;font-size:13px;color:var(--muted);}

.hero-figure{
  position:relative;
  border:1px solid var(--line);
  border-radius:14px;
  overflow:visible;
  background:var(--brand-100);
  box-shadow:var(--shadow-card);
}
.hero-figure .main-shot{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:14px;
}
.hero-figure .mini-shot{
  position:absolute;right:-18px;bottom:-24px;
  width:44%;aspect-ratio:4/3;object-fit:cover;
  border-radius:12px;border:4px solid var(--bg);
  box-shadow:var(--shadow-card);
}

/* ---------- Sections ---------- */
.section{padding:88px 0;}
.section.alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section.tight{padding:64px 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:40px;
}
.section-head h2{
  font-size:30px;line-height:1.32;font-weight:700;
  display:flex;align-items:center;
}
.section-head h2::before{
  content:"";display:inline-block;width:6px;height:22px;border-radius:4px;
  background:var(--brand-600);margin-right:12px;flex:0 0 auto;
}
.section-head .sub{margin:10px 0 0;font-size:15px;color:var(--muted);max-width:620px;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand-600);font-size:14px;font-weight:600;
  transition:gap .22s ease,color .22s ease;white-space:nowrap;
}
.link-more:hover{gap:10px;color:var(--brand-900);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;
  border:1px solid transparent;border-radius:999px;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-primary{background:var(--brand-600);color:#fff;}
.btn-primary:hover{background:var(--brand-900);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{border-color:rgba(14,124,102,.5);color:var(--brand-600);background:transparent;}
.btn-ghost:hover{background:var(--brand-100);}
.btn-accent{background:var(--accent-500);color:#fff;}
.btn-accent:hover{background:#C8461F;transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--brand-900);}
.btn-light:hover{background:var(--brand-100);transform:translateY(-1px);}

/* ---------- Card grid ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.data-card{
  display:flex;flex-direction:column;gap:16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:14px;
  padding:28px;
  box-shadow:var(--shadow-sm);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.data-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(14,124,102,.35);}
.card-top{display:flex;align-items:center;gap:14px;}
.card-icon{
  width:44px;height:44px;flex:0 0 auto;
  border-radius:10px;background:var(--brand-100);color:var(--brand-600);
  display:grid;place-items:center;
}
.data-card h3{font-size:20px;line-height:1.4;font-weight:600;color:var(--ink);}
.data-card p{font-size:15px;line-height:1.75;color:var(--body);margin:0;}
.points{list-style:none;display:grid;gap:10px;}
.points li{position:relative;padding-left:18px;font-size:14px;line-height:1.6;color:var(--body);}
.points li::before{
  content:"";position:absolute;left:0;top:8px;
  width:6px;height:6px;border-radius:50%;background:var(--brand-600);
}
.card-foot{margin-top:auto;padding-top:4px;}

/* ---------- Compare table ---------- */
.table-wrap{
  overflow-x:auto;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:14px;
  box-shadow:var(--shadow-sm);
  -webkit-overflow-scrolling:touch;
}
table.cmp{width:100%;min-width:780px;border-collapse:collapse;font-size:14px;}
table.cmp th,table.cmp td{
  padding:16px 18px;text-align:left;vertical-align:top;
  border-bottom:1px solid var(--line);line-height:1.6;
}
table.cmp thead th{background:var(--brand-100);color:var(--brand-900);font-weight:600;white-space:nowrap;}
table.cmp tbody tr:last-child td{border-bottom:0;}
table.cmp tbody tr{transition:background .2s ease;}
table.cmp tbody tr:hover{background:#FAFBFA;}
table.cmp td:first-child{font-weight:600;color:var(--ink);white-space:nowrap;}
.table-note{margin:16px 0 0;font-size:13px;color:var(--muted);}

/* ---------- CTA band ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:var(--brand-600);
  border-radius:18px;
  padding:38px 42px;
  box-shadow:var(--shadow-card);
  color:#fff;
}
.cta-band h2{color:#fff;font-size:26px;line-height:1.35;margin-bottom:10px;}
.cta-band p{margin:0;font-size:15px;line-height:1.7;color:rgba(255,255,255,.84);max-width:640px;}
.cta-band .cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- FAQ ---------- */
.faq-mini{display:grid;gap:12px;max-width:900px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
  transition:box-shadow .24s ease,border-color .24s ease;
}
.faq-item:hover{border-color:rgba(14,124,102,.35);}
.faq-item.is-open{box-shadow:var(--shadow-card);border-color:rgba(14,124,102,.35);}
.faq-q{
  width:100%;min-height:56px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 20px;
  background:transparent;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.5;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand-600);}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 auto;transition:transform .24s ease;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-600);border-radius:2px;}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a p{padding:0 20px 20px;margin:0;font-size:15px;line-height:1.8;color:var(--body);}

/* ---------- Adjacent nav ---------- */
.nav-next{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;}
.next-card{
  display:flex;flex-direction:column;gap:6px;
  padding:20px 22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:14px;
  box-shadow:var(--shadow-sm);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.next-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(14,124,102,.35);}
.next-card .label{font-size:12px;color:var(--muted);letter-spacing:.04em;}
.next-card .title{font-size:16px;font-weight:600;color:var(--ink);}
.next-card .hint{font-size:13px;color:var(--muted);line-height:1.6;}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,.72);
  padding:64px 0 24px;
  margin-top:0;
  border-top:1px solid rgba(255,255,255,.08);
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:32px;
  padding-top:8px;
  padding-bottom:40px;
  border-top:1px solid rgba(255,255,255,.08);
}
.footer-brand .logo{color:#fff;font-size:18px;}
.footer-brand .logo-mark{background:var(--brand-600);}
.footer-desc{margin:16px 0 14px;font-size:14px;line-height:1.75;color:rgba(255,255,255,.62);max-width:340px;}
.footer-contact{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);}
.footer-contact .num{color:#fff;font-weight:600;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-col ul{list-style:none;display:grid;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);transition:color .2s ease;}
.footer-col a:hover{color:var(--brand-100);}
.qr-box{
  width:132px;height:132px;
  border:1px solid rgba(255,255,255,.22);
  border-radius:12px;
  display:grid;place-items:center;
  text-align:center;font-size:13px;line-height:1.6;
  color:rgba(255,255,255,.55);
  padding:10px;
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{transition:color .2s ease;}
.footer-bottom a:hover{color:#fff;}

/* ---------- Responsive ---------- */
@media (max-width:1439px){
  .container{max-width:1140px;}
}
@media (max-width:1199px){
  .container{max-width:1020px;padding:0 28px;}
  .page-hero h1{font-size:36px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .header-main{
    grid-template-columns:1fr auto;
    grid-template-areas:"logo actions" "search search";
    height:auto;
    padding-top:12px;
    padding-bottom:12px;
    row-gap:12px;
  }
  .logo{grid-area:logo;}
  .header-actions{grid-area:actions;}
  .search-box{grid-area:search;max-width:none;height:44px;}
  .menu-toggle{display:inline-flex;}

  .chips-wrap{
    -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 8px,#000 calc(100% - 8px),transparent 100%);
    mask-image:linear-gradient(90deg,transparent 0,#000 8px,#000 calc(100% - 8px),transparent 100%);
  }

  .page-hero-inner{grid-template-columns:1fr;gap:36px;padding:44px 0 52px;min-height:0;}
  .page-hero h1{font-size:32px;max-width:none;}
  .hero-lead{max-width:none;}
  .hero-figure .mini-shot{right:12px;bottom:-20px;width:38%;}

  .section{padding:64px 0;}
  .section.tight{padding:56px 0;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 28px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:36px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  body{font-size:15px;line-height:1.7;}
  .page-hero h1{font-size:28px;line-height:1.32;}
  .hero-lead{font-size:16px;line-height:1.8;}
  .section{padding:48px 0;}
  .section.tight{padding:44px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;}
  .section-head h2{font-size:24px;line-height:1.35;}
  .section-head h2::before{height:20px;}
  .grid-2{grid-template-columns:1fr;gap:18px;}
  .data-card{padding:22px;}
  .cta-band h2{font-size:22px;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn{width:100%;}
  .nav-next{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;row-gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .hero-actions{width:100%;}
  .hero-actions .btn{flex:1 1 calc(50% - 7px);padding:0 16px;}
  .hero-figure .mini-shot{display:none;}
}
@media (max-width:479px){
  .container{padding:0 16px;}
  .page-hero h1{font-size:26px;}
  .logo{font-size:16px;}
  .logo-mark{width:28px;height:28px;}
  .search-box button{padding:0 16px;}
  .hero-actions .btn{flex:1 1 100%;}
  .page-hero::after{display:none;}
  .faq-q{font-size:15px;padding:14px 16px;}
  .faq-a p{padding:0 16px 18px;}
}