/* roulang page: index */
:root{
  --c-primary:#1E6B58;
  --c-primary-d:#124C3D;
  --c-primary-l:#E8F1ED;
  --c-accent:#E2A03F;
  --c-mist:#6FA79A;
  --c-bg:#F6F8F5;
  --c-surface:#FFFFFF;
  --c-ink:#10201B;
  --c-text:#191E1C;
  --c-text-2:#59645F;
  --c-text-3:#8B958F;
  --c-line:#E3E8E4;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:20px;
  --sh-sm:0 1px 2px rgba(16,32,27,.06);
  --sh-md:0 8px 24px -12px rgba(16,32,27,.18);
  --sh-lg:0 24px 48px -24px rgba(16,32,27,.24);
  --ease:cubic-bezier(.22,.61,.36,1);
  --bs-primary:#1E6B58;
  --bs-body-bg:#F6F8F5;
  --bs-body-color:#191E1C;
  --bs-border-color:#E3E8E4;
  --bs-border-radius:8px;
  --bs-font-sans-serif:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .22s ease}
a:hover{color:var(--c-primary-d)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto}
.container-narrow{max-width:860px;padding-left:20px;padding-right:20px;margin:0 auto}
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-dark{background:var(--c-ink);color:#fff}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  box-shadow:0 1px 2px rgba(16,32,27,.06);
}
.nav-wrap{height:68px;display:flex;align-items:center;gap:20px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:16px;font-weight:700;letter-spacing:-.01em;color:var(--c-text);white-space:nowrap}
.brand:hover{color:var(--c-primary)}
.brand-mark{width:30px;height:30px;flex:0 0 30px;display:grid;place-items:center;border-radius:9px;background:var(--c-primary-l);color:var(--c-primary)}
.brand-mark svg{width:18px;height:18px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{position:relative;padding:22px 14px;font-size:16px;font-weight:500;color:var(--c-text-2)}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:15px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease);
}
.nav-link:hover{color:var(--c-text)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--c-primary);font-weight:600}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 16px;border-radius:999px;
  background:var(--c-bg);border:1px solid transparent;transition:all .22s ease;
}
.nav-search:focus-within{background:#fff;border-color:var(--c-primary)}
.nav-search svg{width:15px;height:15px;color:var(--c-text-3);flex:0 0 15px}
.nav-search input{
  border:0;background:transparent;outline:none;font-size:14px;width:140px;color:var(--c-text);
}
.nav-search input::placeholder{color:var(--c-text-3)}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--c-line);border-radius:var(--r-sm);
  background:#fff;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:16px;height:1.5px;background:var(--c-text);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:1.5px;background:var(--c-text)}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:all .22s ease;
}
.btn .arw{transition:transform .22s var(--ease)}
.btn:hover .arw{transform:translateX(2px)}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-d);color:#fff;box-shadow:var(--sh-md);transform:translateY(-1px)}
.btn-outline{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-l);color:var(--c-primary-d)}
.btn-accent{background:var(--c-accent);color:#3A2805}
.btn-accent:hover{background:#D28F2C;color:#3A2805;box-shadow:var(--sh-md);transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--c-primary-d)}
.btn-light:hover{background:var(--c-primary-l);color:var(--c-primary-d)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:var(--r-md)}
.btn-block{width:100%}
.btn:disabled,.btn.disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary)}
.link-more .arw{transition:transform .22s var(--ease)}
.link-more:hover .arw{transform:translateX(3px)}

/* ---------- shared bits ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  background:var(--c-primary-l);color:var(--c-primary);font-size:12px;font-weight:600;letter-spacing:.04em;
}
.badge-soft{
  display:inline-flex;align-items:center;height:25px;padding:0 11px;border-radius:999px;
  background:var(--c-primary-l);color:var(--c-primary);font-size:12.5px;font-weight:600;line-height:1;
}
.badge-accent{
  display:inline-flex;align-items:center;height:25px;padding:0 11px;border-radius:999px;
  background:rgba(226,160,63,.14);color:#8A6015;font-size:12.5px;font-weight:600;line-height:1;
}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.sec-head h2{font-size:32px;font-weight:700;line-height:1.3;letter-spacing:-.01em;margin-top:14px}
.sec-sub{font-size:15px;color:var(--c-text-2);margin-top:10px;max-width:560px}
.divider{height:1px;background:var(--c-line);border:0;margin:0}

/* reveal */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .3s ease,transform .3s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:64px 0 92px;background:var(--c-bg)}
.hero-glow{
  position:absolute;top:-160px;left:50%;transform:translateX(-50%);
  width:1500px;height:560px;pointer-events:none;
  background:radial-gradient(ellipse at center,rgba(30,107,88,.07) 0%,rgba(30,107,88,0) 62%);
}
.hero::after{
  content:"";position:absolute;left:0;right:0;top:0;height:120px;pointer-events:none;
  background:linear-gradient(180deg,rgba(111,167,154,.06),rgba(111,167,154,0));
}
.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;align-items:center}
.hero h1{
  font-size:clamp(30px,3.4vw,46px);font-weight:800;line-height:1.18;letter-spacing:-.02em;
  margin:20px 0 0;color:var(--c-text);
}
.hero-sub{font-size:17px;line-height:1.85;color:var(--c-text-2);margin-top:20px;max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.trust-list{display:flex;flex-wrap:wrap;gap:26px;margin-top:36px}
.trust-list li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-text-2)}
.trust-list svg{width:16px;height:16px;color:var(--c-primary);flex:0 0 16px}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-lg);
  box-shadow:var(--sh-lg);
}
.float-card{
  position:absolute;right:-16px;bottom:-16px;width:230px;padding:18px 20px;
  background:var(--c-surface);border-radius:var(--r-md);box-shadow:var(--sh-md);
  border:1px solid var(--c-line);
}
.fc-top{display:flex;align-items:center;justify-content:space-between;gap:8px}
.fc-name{font-size:14px;font-weight:700}
.fc-price{font-size:12px;color:var(--c-primary);background:var(--c-primary-l);border-radius:999px;padding:2px 8px}
.fc-rate{display:flex;align-items:center;gap:6px;margin-top:10px;font-size:13px;color:var(--c-text-2);font-variant-numeric:tabular-nums}
.stars{color:var(--c-accent);letter-spacing:2px;font-size:12px}
.fc-meta{font-size:12.5px;color:var(--c-text-3);margin-top:8px;padding-top:8px;border-top:1px solid var(--c-line)}

/* ---------- stats ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--c-line);border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden}
.stat-item{background:var(--c-surface);padding:30px 26px}
.stat-item .num{font-size:34px;font-weight:800;line-height:1.1;letter-spacing:-.02em;color:var(--c-primary)}
.stat-item .num small{font-size:16px;font-weight:700;margin-left:2px}
.stat-item .stat-label{font-size:14px;color:var(--c-text-2);margin-top:10px}
.stat-item .stat-note{font-size:13px;color:var(--c-text-3);margin-top:4px}

/* ---------- product cards ---------- */
.pcard{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-sm);transition:transform .45s var(--ease),box-shadow .45s var(--ease);
  display:flex;flex-direction:column;height:100%;
}
.pcard:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.pc-media{overflow:hidden;position:relative;background:var(--c-bg)}
.pc-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
.pcard:hover .pc-media img{transform:scale(1.03)}
.pc-body{padding:26px 28px;display:flex;flex-direction:column;gap:12px;flex:1}
.pc-body h3{font-size:21px;font-weight:700;line-height:1.42}
.pc-body p{font-size:14.5px;line-height:1.8;color:var(--c-text-2)}
.pc-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--c-line);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.pc-num{font-size:19px;font-weight:800;color:var(--c-primary);font-variant-numeric:tabular-nums;display:flex;flex-direction:column;line-height:1.25}
.pc-num em{font-style:normal;font-size:12.5px;font-weight:500;color:var(--c-text-3);letter-spacing:0}
.pcard-lg{grid-template-columns:minmax(0,4fr) minmax(0,3fr);display:grid}
.pcard-lg .pc-media{min-height:320px;height:100%}
.pcard-sm .pc-media{aspect-ratio:16/10}
.pcard-sm .pc-body{padding:20px 22px}
.pcard-sm .pc-body h3{font-size:18px}

/* ---------- flow ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.flow-item{position:relative;padding:30px 26px 28px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-sm);transition:transform .45s var(--ease),box-shadow .45s var(--ease)}
.flow-item:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.flow-no{font-size:30px;font-weight:800;color:var(--c-primary-l);line-height:1;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.flow-item h3{font-size:18px;font-weight:700;margin-top:16px}
.flow-item p{font-size:14.5px;color:var(--c-text-2);margin-top:10px;line-height:1.8}
.flow-item::after{content:"";position:absolute;left:26px;bottom:0;width:32px;height:3px;border-radius:3px;background:var(--c-primary);opacity:.85}

/* ---------- reviews ---------- */
.review-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);padding:26px 26px 22px;height:100%;display:flex;flex-direction:column;transition:box-shadow .45s var(--ease),transform .45s var(--ease)}
.review-card:hover{box-shadow:var(--sh-md);transform:translateY(-2px)}
.review-card .stars{font-size:13px;letter-spacing:3px;color:var(--c-accent)}
.review-card p{font-size:14.5px;line-height:1.85;color:var(--c-text-2);margin-top:14px}
.review-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--c-line);display:flex;align-items:center;gap:12px}
.avatar{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:var(--c-primary-l);color:var(--c-primary);font-weight:700;font-size:15px;flex:0 0 40px}
.review-name{font-size:14px;font-weight:700;line-height:1.3}
.review-role{font-size:12.5px;color:var(--c-text-3);line-height:1.4}
#reviewCarousel .carousel-item{transition:transform .5s var(--ease),opacity .5s var(--ease)}
.carousel-controls{display:flex;justify-content:flex-end;gap:10px;margin-top:28px}
.cc-btn{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--c-line);background:#fff;
  color:var(--c-primary);display:grid;place-items:center;cursor:pointer;transition:all .22s ease;font-size:16px;
}
.cc-btn:hover{background:var(--c-primary-l);border-color:var(--c-primary)}
.carousel-progress{height:2px;background:var(--c-line);border-radius:2px;margin-top:20px;overflow:hidden}
.carousel-progress::after{content:"";display:block;height:100%;width:40%;border-radius:2px;background:var(--c-primary)}

/* ---------- assurance band ---------- */
.assure-band{
  background:var(--c-ink);border-radius:var(--r-lg);padding:44px 40px;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;position:relative;overflow:hidden;
}
.assure-band::before{
  content:"";position:absolute;top:-120px;right:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(111,167,154,.16),rgba(111,167,154,0) 70%);pointer-events:none;
}
.assure-item{padding:0 26px;position:relative;border-left:1px solid rgba(255,255,255,.08)}
.assure-item:first-child{border-left:0;padding-left:0}
.assure-item svg{width:28px;height:28px;color:var(--c-mist)}
.assure-item h3{font-size:16px;font-weight:600;color:#fff;margin-top:16px}
.assure-item p{font-size:13.5px;line-height:1.75;color:rgba(255,255,255,.72);margin-top:8px}

/* ---------- news ---------- */
.news-card{
  display:flex;flex-direction:column;gap:12px;height:100%;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-sm);transition:transform .45s var(--ease),box-shadow .45s var(--ease),border-color .3s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:#D5DED8}
.news-title{
  font-size:17px;font-weight:600;line-height:1.55;color:var(--c-text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-title{color:var(--c-primary)}
.news-sum{
  font-size:14px;line-height:1.75;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line);display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3)}
.news-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--c-text-3)}
.news-meta .read-more{margin-left:auto;color:var(--c-primary);font-weight:600;display:inline-flex;align-items:center;gap:4px}
.news-card:hover .read-more .arw{transform:translateX(3px)}
.news-meta .read-more .arw{transition:transform .22s var(--ease)}
.empty-state{
  text-align:center;padding:56px 24px;background:var(--c-surface);
  border:1px dashed var(--c-line);border-radius:var(--r-lg);
}
.empty-state svg{width:34px;height:34px;color:var(--c-mist);margin:0 auto 14px}
.empty-state p{font-size:15px;color:var(--c-text-2);margin-bottom:18px}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;transition:box-shadow .3s ease,border-color .3s ease}
.faq-item[open]{box-shadow:var(--sh-sm);border-color:#D5DED8}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px 20px 26px;
  font-size:16px;font-weight:600;color:var(--c-text);
  display:flex;align-items:center;justify-content:space-between;gap:16px;position:relative;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
  background:var(--c-primary);opacity:0;transition:opacity .25s ease;
}
.faq-item[open] summary::before{opacity:1}
.faq-arrow{width:10px;height:10px;border-right:1.6px solid var(--c-text-3);border-bottom:1.6px solid var(--c-text-3);transform:rotate(45deg);transition:transform .3s var(--ease);flex:0 0 10px;margin-top:-4px}
.faq-item[open] .faq-arrow{transform:rotate(-135deg);margin-top:4px}
.faq-answer{padding:0 26px 22px;font-size:14.5px;line-height:1.85;color:var(--c-text-2)}

/* ---------- cta ---------- */
.cta-band{
  background:var(--c-primary);border-radius:var(--r-lg);padding:52px 48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-100px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.12),rgba(255,255,255,0) 70%);pointer-events:none;
}
.cta-band h2{font-size:30px;font-weight:800;line-height:1.3;letter-spacing:-.01em;position:relative}
.cta-band p{font-size:14.5px;color:rgba(255,255,255,.82);margin-top:12px;position:relative}
.cta-side{display:flex;flex-direction:column;align-items:flex-end;gap:10px;position:relative}
.cta-note{font-size:13px;color:rgba(255,255,255,.75)}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.78);padding:72px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));gap:40px}
.footer-grid > div{padding-left:32px;border-left:1px solid rgba(255,255,255,.08)}
.footer-grid > div:first-child{padding-left:0;border-left:0}
.footer-brand .brand{color:#fff;font-size:16px}
.footer-brand .brand:hover{color:#fff}
.footer-brand .brand-mark{background:rgba(255,255,255,.1);color:#fff}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);margin-top:16px;max-width:320px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;letter-spacing:.02em;margin-bottom:16px}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.72);padding:6px 0;transition:color .22s ease}
.footer-col a:hover{color:var(--c-primary-l)}
.footer-col span{display:block;font-size:14px;color:rgba(255,255,255,.66);padding:6px 0}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:var(--c-primary-l)}

/* ---------- mobile bar ---------- */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  height:56px;padding:0 16px calc(env(safe-area-inset-bottom,0px));
  background:rgba(255,255,255,.97);backdrop-filter:blur(8px);
  border-top:1px solid var(--c-line);
  display:none;align-items:center;justify-content:space-between;gap:12px;
  box-shadow:0 -6px 20px -14px rgba(16,32,27,.4);
}
.mobile-bar .mb-text{font-size:13px;color:var(--c-text-2);line-height:1.4}
.mobile-bar.show{display:flex}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .hero h1{font-size:clamp(28px,3.6vw,40px)}
  .stat-item .num{font-size:30px}
  .assure-band{padding:36px 28px}
  .assure-item{padding:0 18px}
}
@media (max-width:991.98px){
  .section{padding:72px 0}
  .nav-search{display:none}
  .nav-toggle{display:flex}
  .nav-links{
    position:absolute;top:68px;left:0;right:0;display:none;flex-direction:column;align-items:stretch;
    gap:0;margin:0;padding:8px 20px 18px;background:#fff;
    border-bottom:1px solid var(--c-line);box-shadow:var(--sh-md);
  }
  .nav-links.open{display:flex}
  .nav-link{padding:14px 0;border-bottom:1px solid var(--c-line)}
  .nav-link::after{display:none}
  .nav-links .drawer-cta{margin-top:16px}
  .hero{padding:48px 0 76px}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-media img{aspect-ratio:16/10}
  .hero-sub{max-width:none}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pcard-lg{grid-template-columns:1fr}
  .pcard-lg .pc-media{min-height:240px;aspect-ratio:16/10}
  .assure-band{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 0;padding:34px 26px}
  .assure-item:nth-child(3){border-left:0;padding-left:0}
  .assure-item{padding:0 18px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px}
  .footer-grid > div{padding-left:0;border-left:0}
  .cta-band{padding:40px 32px}
  .cta-side{align-items:flex-start}
}
@media (max-width:767.98px){
  .section{padding:52px 0}
  .container{padding-left:16px;padding-right:16px}
  .sec-head h2{font-size:24px}
  .sec-head{margin-bottom:28px}
  .hero{padding:36px 0 64px}
  .hero h1{font-size:clamp(26px,7.4vw,32px)}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .float-card{position:static;width:100%;margin-top:14px;right:auto;bottom:auto}
  .trust-list{gap:16px}
  .stat-grid{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr}
  .assure-band{grid-template-columns:1fr;gap:0;padding:28px 22px}
  .assure-item{border-left:0;padding:18px 0;border-top:1px solid rgba(255,255,255,.08)}
  .assure-item:first-child{border-top:0;padding-top:0}
  .assure-item:last-child{padding-bottom:0}
  .pc-body{padding:20px}
  .cta-band{padding:32px 22px}
  .cta-band h2{font-size:22px}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding:52px 0 24px}
  body{padding-bottom:56px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --c-primary:#1E6B58;
  --c-primary-d:#124C3D;
  --c-primary-l:#E8F1ED;
  --c-accent:#E2A03F;
  --c-accent-l:#FBF1DF;
  --c-accent-d:#9A6A16;
  --c-mist:#6FA79A;
  --c-bg:#F6F8F5;
  --c-surface:#FFFFFF;
  --c-ink:#10201B;
  --c-text:#191E1C;
  --c-text-2:#59645F;
  --c-text-3:#8B958F;
  --c-line:#E3E8E4;
  --r-s:8px;
  --r-m:12px;
  --r-l:20px;
  --sh-s:0 1px 2px rgba(16,32,27,.06);
  --sh-m:0 8px 24px -12px rgba(16,32,27,.18);
  --sh-l:0 24px 48px -24px rgba(16,32,27,.24);
  --sp-section:96px;
  --ease:cubic-bezier(.22,.61,.36,1);

  --bs-primary:#1E6B58;
  --bs-body-bg:#F6F8F5;
  --bs-body-color:#191E1C;
  --bs-border-color:#E3E8E4;
  --bs-border-radius:8px;
  --bs-font-sans-serif:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-primary);text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease;}
a:hover{color:var(--c-primary-d);}
button,input{font:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-text);letter-spacing:-.01em;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (max-width:1199.98px){.container{max-width:960px;}}
@media (max-width:767.98px){.container{padding:0 16px;}}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  box-shadow:0 1px 2px rgba(16,32,27,.06);
}
.nav-wrap{display:flex;align-items:center;gap:28px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:16px;font-weight:700;letter-spacing:-.01em;color:var(--c-text);white-space:nowrap;}
.brand:hover{color:var(--c-primary);}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:10px;background:var(--c-primary-l);color:var(--c-primary);flex:0 0 auto;}
.brand-mark svg{width:20px;height:20px;}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:8px;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--c-text-2);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--c-primary);
  transform:scaleX(0);transform-origin:left;transition:transform .28s var(--ease);
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--c-primary);}
.nav-link.active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 16px;
  background:var(--c-bg);border:1px solid var(--c-line);border-radius:999px;
  transition:border-color .22s ease,background-color .22s ease;
}
.nav-search:focus-within{border-color:var(--c-primary);background:#fff;}
.nav-search svg{width:16px;height:16px;color:var(--c-text-3);flex:0 0 auto;}
.nav-search input{
  border:0;background:transparent;outline:none;width:150px;font-size:14px;color:var(--c-text);
}
.nav-search input::placeholder{color:var(--c-text-3);}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--c-line);border-radius:10px;
  background:#fff;position:relative;cursor:pointer;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--c-text);border-radius:2px;
  transform:translateX(-50%);transition:transform .25s ease,opacity .25s ease;
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{content:"";left:0;transform:none;top:-6px;}
.nav-toggle span::after{content:"";left:0;transform:none;top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg);}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-m);border:1px solid transparent;font-weight:600;font-size:15px;
  padding:0 24px;height:46px;line-height:1;cursor:pointer;
  transition:all .22s ease;white-space:nowrap;
}
.btn:disabled,.btn.disabled{opacity:.5;cursor:not-allowed;}
.btn .arw{transition:transform .22s ease;}
.btn:hover .arw{transform:translateX(2px);}
.btn-primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.btn-primary:hover{background:var(--c-primary-d);border-color:var(--c-primary-d);color:#fff;box-shadow:var(--sh-m);}
.btn-primary:active{background:var(--c-primary-d);transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-l);color:var(--c-primary-d);border-color:var(--c-primary-d);}
.btn-accent{background:var(--c-accent);color:#3A2708;border-color:var(--c-accent);}
.btn-accent:hover{background:#D08F2C;border-color:#D08F2C;color:#2E1F06;box-shadow:var(--sh-m);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}

/* ============ Breadcrumb ============ */
.crumb-bar{padding:22px 0 0;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-text-3);}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"/";color:#C7D0CA;}
.crumb a{color:var(--c-text-3);}
.crumb a:hover{color:var(--c-primary);}
.crumb .cur{color:var(--c-primary);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ Article head ============ */
.article-head{padding:26px 0 30px;}
.badge-cat{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--c-primary-l);color:var(--c-primary);font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.article-head h1{
  font-size:clamp(28px,3.4vw,40px);font-weight:800;line-height:1.25;letter-spacing:-.02em;
  margin:16px 0 18px;max-width:960px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13.5px;color:var(--c-text-3);}
.meta-row .dot{width:3px;height:3px;border-radius:50%;background:#C7D0CA;}
.head-rule{height:1px;background:var(--c-line);border:0;margin:0;}

/* ============ Article layout ============ */
.article-wrap{padding:44px 0 0;}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start;}
.reader{max-width:860px;}
.reader-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);
  padding:40px 44px;box-shadow:var(--sh-s);
}
.prose{font-size:16px;line-height:1.9;color:var(--c-text);}
.prose p{margin:0 0 1.6em;}
.prose h2{
  position:relative;font-size:28px;font-weight:700;line-height:1.34;
  margin:40px 0 16px;padding-left:16px;letter-spacing:-.01em;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:1em;border-radius:2px;background:var(--c-primary);
}
.prose h3{font-size:21px;font-weight:600;margin:28px 0 12px;}
.prose h4{font-size:17px;font-weight:600;margin:22px 0 10px;}
.prose ul,.prose ol{margin:0 0 1.6em;padding-left:4px;}
.prose ul li{position:relative;padding-left:20px;margin-bottom:8px;}
.prose ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--c-primary-mist,#6FA79A);
}
.prose ol{counter-reset:li;padding-left:0;}
.prose ol li{position:relative;padding-left:30px;margin-bottom:8px;counter-increment:li;}
.prose ol li::before{
  content:counter(li,decimal-leading-zero);position:absolute;left:0;top:0;
  font-size:13px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;
}
.prose blockquote{
  margin:26px 0;padding:20px 24px;background:var(--c-primary-l);
  border-left:3px solid var(--c-primary);border-radius:0 12px 12px 0;color:var(--c-text-2);
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{border-radius:12px;width:100%;margin:22px 0 8px;}
.prose figure{margin:22px 0;}
.prose figcaption{font-size:13px;color:var(--c-text-3);text-align:center;margin-top:8px;}
.prose a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.prose a:hover{color:var(--c-primary-d);}
.prose table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.prose table th,.prose table td{border-bottom:1px solid var(--c-line);padding:12px 14px;text-align:left;}
.prose table th{background:var(--c-bg);font-weight:600;}
.prose table tr:first-child th{border-top:1px solid var(--c-line);}
.prose code{
  background:var(--c-primary-l);color:var(--c-primary-d);border-radius:6px;
  padding:2px 6px;font-size:14px;
}
.prose pre{background:var(--c-ink);color:#E6EFEA;border-radius:12px;padding:20px;overflow:auto;font-size:14px;}
.prose pre code{background:transparent;color:inherit;padding:0;}
.prose hr{border:0;border-top:1px solid var(--c-line);margin:36px 0;}

/* ============ Sidebar ============ */
.side{position:sticky;top:92px;display:grid;gap:20px;}
.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);padding:22px;box-shadow:var(--sh-s);}
.side-card h3{font-size:15px;font-weight:700;margin-bottom:14px;letter-spacing:.01em;}
.side-links{display:grid;gap:2px;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:14px;color:var(--c-text-2);padding:10px 12px;border-radius:var(--r-s);
}
.side-links a:hover{background:var(--c-primary-l);color:var(--c-primary-d);}
.side-links a span.arw{color:var(--c-mist);transition:transform .22s ease;}
.side-links a:hover span.arw{transform:translateX(2px);}
.mini{display:grid;gap:14px;}
.mini-item{display:grid;grid-template-columns:76px 1fr;gap:12px;align-items:center;}
.mini-item img{width:76px;height:56px;object-fit:cover;border-radius:var(--r-s);}
.mini-item h4{font-size:14px;font-weight:600;line-height:1.5;margin:0 0 4px;}
.mini-item h4 a{color:var(--c-text);}
.mini-item h4 a:hover{color:var(--c-primary);}
.mini-item time{font-size:12.5px;color:var(--c-text-3);}
.side-cta{background:var(--c-ink);border-color:var(--c-ink);color:#fff;}
.side-cta h3{color:#fff;}
.side-cta p{font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.72);margin:0 0 14px;}
.side-cta .btn{width:100%;}

/* ============ Empty state ============ */
.empty{
  text-align:center;padding:56px 24px;border:1px dashed var(--c-line);border-radius:var(--r-l);
  background:var(--c-surface);
}
.empty svg{width:34px;height:34px;color:var(--c-mist);margin:0 auto 16px;}
.empty h3{font-size:20px;margin-bottom:8px;}
.empty p{color:var(--c-text-2);font-size:15px;margin-bottom:20px;}

/* ============ Related ============ */
.related{padding:64px 0 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;flex-wrap:wrap;}
.sec-tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--c-primary-l);color:var(--c-primary);font-size:12.5px;font-weight:600;margin-bottom:10px;
}
.sec-head h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;letter-spacing:-.01em;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--c-primary);}
.text-link .arw{transition:transform .22s ease;}
.text-link:hover .arw{transform:translateX(2px);}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-m);overflow:hidden;box-shadow:var(--sh-s);
  transition:transform .45s var(--ease),box-shadow .45s var(--ease),border-color .45s var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-m);border-color:#D6DED9;}
.card:hover .card-media img{transform:scale(1.03);}
.card-media{aspect-ratio:16/10;overflow:hidden;background:var(--c-bg);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-body h3 a{color:var(--c-text);}
.card-body h3 a:hover{color:var(--c-primary);}
.card-body p{font-size:14px;line-height:1.7;color:var(--c-text-2);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{margin-top:auto;padding-top:12px;border-top:1px solid var(--c-line);display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);}
.card-foot .dot{width:3px;height:3px;border-radius:50%;background:#C7D0CA;}

/* ============ Back actions ============ */
.back-actions{padding:40px 0 0;display:flex;flex-wrap:wrap;align-items:center;gap:18px;}
.back-actions .hint{font-size:13px;color:var(--c-text-3);}

/* ============ CTA ============ */
.cta-band{margin-top:72px;}
.cta-inner{
  background:var(--c-primary);border-radius:var(--r-l);padding:40px 44px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:var(--sh-l);
}
.cta-inner h2{color:#fff;font-size:clamp(20px,2.4vw,28px);font-weight:700;line-height:1.35;letter-spacing:-.01em;margin-bottom:8px;}
.cta-inner p{color:rgba(255,255,255,.82);font-size:14.5px;margin:0;}
.cta-right{display:flex;flex-direction:column;align-items:flex-start;gap:10px;}
.cta-right .note{font-size:13px;color:rgba(255,255,255,.72);}

/* ============ Footer ============ */
.site-footer{margin-top:96px;background:var(--c-ink);color:rgba(255,255,255,.78);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:0;}
.footer-grid>div{padding:0 28px;}
.footer-grid>div:first-child{padding-left:0;}
.footer-grid>div:last-child{padding-right:0;}
.footer-grid>div+div{border-left:1px solid rgba(255,255,255,.08);}
.footer-brand .brand{color:#fff;margin-bottom:16px;}
.footer-brand .brand:hover{color:#fff;}
.footer-brand .brand-mark{background:rgba(255,255,255,.08);color:#9FD3C4;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);margin:0;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;letter-spacing:.01em;}
.footer-col a,.footer-col span{display:block;font-size:14px;color:rgba(255,255,255,.66);margin-bottom:12px;line-height:1.6;}
.footer-col a:hover{color:#9FD3C4;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.08);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13.5px;color:rgba(255,255,255,.56);margin:0;}
.footer-bottom a{font-size:13.5px;color:rgba(255,255,255,.72);}
.footer-bottom a:hover{color:#9FD3C4;}

/* ============ Mobile bar ============ */
.mobile-cta{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:1040;
  background:#fff;border-top:1px solid var(--c-line);
  padding:8px 16px calc(8px + env(safe-area-inset-bottom));
  box-shadow:0 -6px 24px -16px rgba(16,32,27,.28);
}
.mobile-cta .btn{width:100%;height:48px;}

/* ============ Breakpoints ============ */
@media (max-width:1199.98px){
  .layout{grid-template-columns:1fr;gap:36px;}
  .side{position:static;grid-template-columns:1fr 1fr;}
}
@media (max-width:991.98px){
  :root{--sp-section:64px;}
  .nav-links{
    position:absolute;top:68px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--c-line);
    padding:8px 20px 16px;box-shadow:var(--sh-m);
    display:none;
  }
  .nav-links.open{display:flex;}
  .nav-link{padding:14px 0;border-bottom:1px solid var(--c-line);font-size:15.5px;}
  .nav-link:last-child{border-bottom:0;}
  .nav-link::after{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-search{display:none;}
  .reader-card{padding:30px 26px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-grid>div{padding:0 20px;}
  .footer-grid>div:nth-child(odd){padding-left:0;}
  .footer-grid>div:nth-child(even){padding-left:24px;}
  .footer-grid>div+div{border-left:0;}
  .footer-grid>div:nth-child(even){border-left:1px solid rgba(255,255,255,.08);}
  .footer-grid>div:nth-child(n+3){margin-top:32px;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767.98px){
  :root{--sp-section:48px;}
  .nav-wrap{height:60px;gap:14px;}
  .nav-links{top:60px;}
  .brand span:last-child{font-size:15px;}
  .nav-right .btn{display:none;}
  .article-head h1{font-size:26px;}
  .crumb .cur{max-width:180px;}
  .reader-card{padding:24px 18px;border-radius:var(--r-m);}
  .prose h2{font-size:22px;margin-top:32px;}
  .prose h3{font-size:19px;}
  .grid-3{grid-template-columns:1fr;}
  .side{grid-template-columns:1fr;}
  .cta-inner{padding:28px 22px;}
  .cta-right{width:100%;}
  .cta-right .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-grid>div{padding:0!important;border-left:0!important;}
  .footer-grid>div+div{margin-top:28px;padding-top:28px!important;border-top:1px solid rgba(255,255,255,.08);}
  .site-footer{padding-top:48px;margin-top:64px;}
  body{padding-bottom:64px;}
  .mobile-cta{display:block;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;}
  html{scroll-behavior:auto;}
  .card:hover{transform:none;}
  .card:hover .card-media img{transform:none;}
}

/* roulang page: category1 */
:root{
  --c-primary:#1E6B58;
  --c-primary-d:#124C3D;
  --c-primary-l:#E8F1ED;
  --c-accent:#E2A03F;
  --c-accent-l:#FBF1DF;
  --c-mist:#6FA79A;
  --c-bg:#F6F8F5;
  --c-surface:#FFFFFF;
  --c-ink:#10201B;
  --c-text:#191E1C;
  --c-text-2:#59645F;
  --c-text-3:#8B958F;
  --c-line:#E3E8E4;
  --r-s:8px;
  --r-m:12px;
  --r-l:20px;
  --sh-s:0 1px 2px rgba(16,32,27,.06);
  --sh-m:0 8px 24px -12px rgba(16,32,27,.18);
  --sh-l:0 24px 48px -24px rgba(16,32,27,.24);
  --ease:transform .45s cubic-bezier(.22,.61,.36,1), box-shadow .3s ease, background-color .22s ease, color .22s ease, border-color .22s ease;

  --bs-body-bg:var(--c-bg);
  --bs-body-color:var(--c-text);
  --bs-border-color:var(--c-line);
  --bs-border-radius:8px;
  --bs-primary:var(--c-primary);
  --bs-primary-rgb:30,107,88;
  --bs-link-color:var(--c-primary);
  --bs-link-hover-color:var(--c-primary-d);
  --bs-font-sans-serif:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}

html{scroll-behavior:smooth;}

body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--c-primary-d);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button,input{font-family:inherit;}
::selection{background:var(--c-primary-l);color:var(--c-primary-d);}

:focus-visible{
  outline:2px solid var(--c-primary);
  outline-offset:2px;
  border-radius:4px;
}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}

.narrow{max-width:860px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  border-radius:var(--r-m);
  border:1px solid transparent;
  cursor:pointer;
  transition:var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--c-primary);
  color:#fff;
  box-shadow:var(--sh-s);
}
.btn-primary:hover{
  background:var(--c-primary-d);
  color:#fff;
  box-shadow:var(--sh-m);
  transform:translateY(-1px);
}
.btn-outline{
  background:transparent;
  border-color:var(--c-primary);
  color:var(--c-primary);
}
.btn-outline:hover{
  background:var(--c-primary-l);
  color:var(--c-primary-d);
  border-color:var(--c-primary-d);
}
.btn-accent{
  background:var(--c-accent);
  color:#3A2708;
  font-weight:700;
}
.btn-accent:hover{
  background:#D08F2C;
  color:#3A2708;
  box-shadow:var(--sh-m);
}
.btn-sm{
  height:40px;
  padding:0 20px;
  font-size:14px;
  border-radius:var(--r-m);
}
.btn-arrow::after{
  content:"→";
  display:inline-block;
  transition:transform .22s ease;
}
.btn:hover .btn-arrow,
.btn-arrow:hover::after{transform:translateX(2px);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  box-shadow:0 1px 2px rgba(16,32,27,.06);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:68px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--c-text);
  font-size:16px;
  font-weight:700;
  letter-spacing:-.01em;
  flex-shrink:0;
}
.brand:hover{color:var(--c-primary);}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border-radius:var(--r-s);
  background:var(--c-primary-l);
  color:var(--c-primary);
  flex-shrink:0;
}
.brand-mark svg{width:22px;height:22px;}

.nav-links{
  display:flex;
  align-items:center;
  gap:30px;
}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--c-text-2);
  padding:6px 0;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:var(--c-primary);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .28s cubic-bezier(.22,.61,.36,1);
  border-radius:2px;
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--c-primary);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}

.nav-right{
  display:flex;
  align-items:center;
  gap:14px;
}
.nav-search{
  display:flex;
  align-items:center;
  gap:8px;
  height:40px;
  width:210px;
  padding:0 16px;
  border-radius:999px;
  background:var(--c-bg);
  border:1px solid transparent;
  transition:var(--ease);
}
.nav-search svg{width:16px;height:16px;color:var(--c-text-3);flex-shrink:0;}
.nav-search input{
  border:0;
  outline:0;
  background:transparent;
  font-size:14px;
  color:var(--c-text);
  width:100%;
}
.nav-search input::placeholder{color:var(--c-text-3);}
.nav-search:focus-within{
  border-color:var(--c-primary);
  background:#fff;
}

.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border:1px solid var(--c-line);
  border-radius:var(--r-s);
  background:#fff;
  position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;
  left:11px;
  width:18px;
  height:2px;
  background:var(--c-text);
  border-radius:2px;
  transition:transform .25s ease, opacity .2s ease;
}
.nav-toggle span{top:20px;}
.nav-toggle span::before{content:"";left:0;top:-6px;}
.nav-toggle span::after{content:"";left:0;top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}

/* ---------- 分类页头 ---------- */
.cat-hero{
  position:relative;
  padding:76px 0 72px;
  background:
    radial-gradient(1200px 260px at 50% -60px, rgba(30,107,88,.07), rgba(30,107,88,0) 70%),
    var(--c-primary-l);
  overflow:hidden;
}
.cat-hero::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:var(--c-line);
}
.cat-hero-grid{
  display:grid;
  grid-template-columns:1fr 320px;
  gap:56px;
  align-items:center;
}
.breadcrumb-line{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--c-text-3);
  margin-bottom:20px;
}
.breadcrumb-line a{color:var(--c-text-3);}
.breadcrumb-line a:hover{color:var(--c-primary);}
.breadcrumb-line .sep{color:#C6CFC9;}
.breadcrumb-line .current{color:var(--c-primary);font-weight:600;}

.cat-index{
  font-size:13px;
  font-weight:700;
  letter-spacing:.18em;
  color:var(--c-primary);
  text-transform:uppercase;
  margin-bottom:14px;
}
.cat-hero h1{
  font-size:46px;
  font-weight:800;
  line-height:1.18;
  letter-spacing:-.02em;
  color:var(--c-ink);
  margin-bottom:18px;
}
.cat-hero .lead-text{
  font-size:16px;
  line-height:1.85;
  color:var(--c-text-2);
  max-width:640px;
  margin-bottom:28px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:26px;
}
.hero-marks{
  display:flex;
  flex-wrap:wrap;
  gap:22px;
}
.mark-item{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--c-text-2);
}
.mark-item svg{width:17px;height:17px;color:var(--c-primary);}

.cat-hero-media{
  position:relative;
}
.cat-hero-media img{
  width:100%;
  height:280px;
  object-fit:cover;
  border-radius:var(--r-l);
  box-shadow:var(--sh-l);
}
.hero-float{
  position:absolute;
  left:-18px;
  bottom:-20px;
  background:var(--c-surface);
  border-radius:var(--r-m);
  padding:14px 18px;
  box-shadow:var(--sh-m);
  border:1px solid var(--c-line);
}
.hero-float .hf-num{
  font-size:22px;
  font-weight:800;
  color:var(--c-primary);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.hero-float .hf-label{
  font-size:12px;
  color:var(--c-text-3);
  letter-spacing:.02em;
}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-sm{padding:72px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  margin-bottom:40px;
}
.section-tag{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  background:var(--c-primary-l);
  color:var(--c-primary);
  font-size:12px;
  font-weight:600;
  letter-spacing:.06em;
  margin-bottom:14px;
}
.section-head h2{
  font-size:32px;
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.01em;
  color:var(--c-ink);
}
.section-head .sub{
  font-size:15px;
  color:var(--c-text-2);
  margin-top:10px;
  max-width:620px;
}

/* ---------- 筛选标签 ---------- */
.filter-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:36px;
}
.chip{
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 18px;
  border-radius:999px;
  border:1px solid var(--c-line);
  background:#fff;
  font-size:14px;
  color:var(--c-text-2);
  transition:var(--ease);
  cursor:default;
}
.chip:hover{border-color:var(--c-mist);color:var(--c-primary);}
.chip.active{
  background:var(--c-primary-l);
  border-color:transparent;
  color:var(--c-primary);
  font-weight:600;
}

/* ---------- 卡片网格 ---------- */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:26px;
}
.exp-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-l);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:var(--ease);
}
.exp-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-m);
  border-color:#D6DED9;
}
.exp-card-media{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/10;
  background:var(--c-primary-l);
}
.exp-card-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .45s cubic-bezier(.22,.61,.36,1);
}
.exp-card:hover .exp-card-media img{transform:scale(1.03);}
.exp-card-body{
  padding:24px;
  display:flex;
  flex-direction:column;
  gap:12px;
  flex:1;
}
.badge-soft{
  display:inline-flex;
  align-items:center;
  align-self:flex-start;
  height:24px;
  padding:0 12px;
  border-radius:999px;
  background:var(--c-primary-l);
  color:var(--c-primary);
  font-size:12px;
  font-weight:600;
}
.badge-accent{
  background:var(--c-accent-l);
  color:#8A5B10;
}
.exp-card h3{
  font-size:19px;
  font-weight:600;
  line-height:1.45;
  color:var(--c-ink);
}
.exp-card p{
  font-size:14px;
  line-height:1.75;
  color:var(--c-text-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-foot{
  margin-top:auto;
  padding-top:16px;
  border-top:1px solid var(--c-line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:14px;
  color:var(--c-primary);
  font-weight:600;
}
.card-foot .meta{
  font-size:13px;
  color:var(--c-text-3);
  font-weight:400;
  font-variant-numeric:tabular-nums;
}
.arrow-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--c-primary);
}
.arrow-link::after{
  content:"→";
  transition:transform .22s ease;
}
.arrow-link:hover::after{transform:translateX(3px);}

/* ---------- 保障条（浅底版） ---------- */
.assure-band{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-l);
  box-shadow:var(--sh-s);
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
}
.assure-item{
  padding:30px 26px;
  border-right:1px solid var(--c-line);
}
.assure-item:last-child{border-right:0;}
.assure-item svg{
  width:28px;
  height:28px;
  color:var(--c-mist);
  margin-bottom:14px;
}
.assure-item h4{
  font-size:16px;
  font-weight:600;
  color:var(--c-ink);
  margin-bottom:6px;
}
.assure-item p{
  font-size:13.5px;
  line-height:1.7;
  color:var(--c-text-2);
}

/* ---------- 流程 ---------- */
.step-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:26px;
}
.step-item{
  position:relative;
  padding-top:26px;
  border-top:2px solid var(--c-line);
  transition:var(--ease);
}
.step-item:hover{border-top-color:var(--c-primary);}
.step-num{
  font-size:13px;
  font-weight:800;
  letter-spacing:.16em;
  color:var(--c-mist);
  font-variant-numeric:tabular-nums;
  margin-bottom:12px;
}
.step-item h3{
  font-size:18px;
  font-weight:600;
  color:var(--c-ink);
  margin-bottom:10px;
}
.step-item p{
  font-size:14px;
  line-height:1.78;
  color:var(--c-text-2);
}

/* ---------- 对照区 ---------- */
.compare-wrap{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:26px;
}
.compare-panel{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-l);
  padding:30px;
  box-shadow:var(--sh-s);
}
.compare-panel.dark{
  background:var(--c-ink);
  border-color:transparent;
  color:#fff;
}
.compare-panel h3{
  font-size:20px;
  font-weight:700;
  margin-bottom:18px;
  color:var(--c-ink);
}
.compare-panel.dark h3{color:#fff;}
.check-list li{
  display:flex;
  gap:12px;
  padding:11px 0;
  font-size:14.5px;
  line-height:1.75;
  color:var(--c-text-2);
  border-bottom:1px dashed var(--c-line);
}
.compare-panel.dark .check-list li{
  color:rgba(255,255,255,.76);
  border-bottom-color:rgba(255,255,255,.1);
}
.check-list li:last-child{border-bottom:0;}
.check-list svg{
  width:18px;
  height:18px;
  flex-shrink:0;
  margin-top:5px;
  color:var(--c-primary);
}
.compare-panel.dark .check-list svg{color:var(--c-mist);}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--c-primary);
  border-radius:var(--r-l);
  padding:52px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  right:-80px;
  top:-90px;
  width:320px;
  height:320px;
  border-radius:50%;
  background:rgba(255,255,255,.06);
}
.cta-band h2{
  font-size:30px;
  font-weight:700;
  color:#fff;
  line-height:1.35;
  margin-bottom:12px;
  position:relative;
}
.cta-band p{
  font-size:15px;
  color:rgba(255,255,255,.78);
  max-width:520px;
  position:relative;
}
.cta-actions{
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:10px;
  position:relative;
  flex-shrink:0;
}
.cta-note{
  font-size:13px;
  color:rgba(255,255,255,.66);
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-ink);
  color:rgba(255,255,255,.72);
  padding:72px 0 28px;
  margin-top:96px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .brand{color:#fff;margin-bottom:16px;}
.footer-brand .brand:hover{color:var(--c-mist);}
.footer-brand .brand-mark{background:rgba(255,255,255,.1);color:var(--c-mist);}
.footer-brand p{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.6);
  max-width:340px;
}
.footer-col{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding-left:32px;
  border-left:1px solid rgba(255,255,255,.08);
}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:6px;
}
.footer-col a,
.footer-col span{
  font-size:14px;
  color:rgba(255,255,255,.66);
  line-height:1.7;
}
.footer-col a:hover{color:var(--c-mist);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding-top:24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:13px;
  color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.7);}
.footer-bottom a:hover{color:var(--c-mist);}

/* ---------- 入场动效 ---------- */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .5s ease, transform .5s cubic-bezier(.22,.61,.36,1);
}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{max-width:960px;}
  .cat-hero h1{font-size:40px;}
  .cat-hero-grid{gap:40px;}
  .nav-links{gap:22px;}
  .nav-search{width:176px;}
}

@media (max-width:991px){
  .nav-toggle{display:block;}
  .nav-links{
    position:absolute;
    left:0;
    right:0;
    top:68px;
    flex-direction:column;
    align-items:flex-start;
    gap:4px;
    background:#fff;
    border-bottom:1px solid var(--c-line);
    box-shadow:var(--sh-m);
    padding:14px 20px 22px;
    display:none;
  }
  .nav-links.open{display:flex;}
  .nav-link{width:100%;padding:10px 0;font-size:15px;}
  .nav-link::after{display:none;}
  .nav-search{display:none;}
  .cat-hero{padding:56px 0 56px;}
  .cat-hero-grid{grid-template-columns:1fr;gap:36px;}
  .cat-hero-media{order:2;}
  .cat-hero-media img{height:240px;}
  .hero-float{left:auto;right:16px;bottom:-16px;}
  .section{padding:64px 0;}
  .section-sm{padding:56px 0;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .assure-band{grid-template-columns:repeat(2,minmax(0,1fr));}
  .assure-item:nth-child(2){border-right:0;}
  .assure-item:nth-child(1),
  .assure-item:nth-child(2){border-bottom:1px solid var(--c-line);}
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .compare-wrap{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px;}
  .cta-actions{align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-col{padding-left:0;border-left:0;}
  .footer-brand{grid-column:1 / -1;}
}

@media (max-width:767px){
  .nav-search{display:none;}
  .cat-hero h1{font-size:32px;}
  .cat-hero .lead-text{font-size:15px;}
  .hero-actions .btn{width:100%;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;}
  .section-head h2{font-size:25px;}
  .card-grid{grid-template-columns:1fr;}
  .assure-band{grid-template-columns:1fr;}
  .assure-item{border-right:0;border-bottom:1px solid var(--c-line);}
  .assure-item:last-child{border-bottom:0;}
  .step-grid{grid-template-columns:1fr;gap:22px;}
  .cta-band h2{font-size:23px;}
  .cta-band{padding:34px 24px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px;}
  .cat-hero h1{font-size:28px;}
  .hero-float{right:12px;bottom:-14px;padding:12px 14px;}
  .exp-card-body{padding:20px;}
}

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

/* roulang page: category2 */
:root{
  --c-primary:#1E6B58;
  --c-primary-d:#124C3D;
  --c-primary-l:#E8F1ED;
  --c-accent:#E2A03F;
  --c-mist:#6FA79A;
  --c-bg:#F6F8F5;
  --c-surface:#FFFFFF;
  --c-ink:#10201B;
  --c-text:#191E1C;
  --c-text-2:#59645F;
  --c-text-3:#8B958F;
  --c-line:#E3E8E4;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:20px;
  --sh-sm:0 1px 2px rgba(16,32,27,.06);
  --sh-md:0 8px 24px -12px rgba(16,32,27,.18);
  --sh-lg:0 24px 48px -24px rgba(16,32,27,.24);
  --ease:cubic-bezier(.22,.61,.36,1);

  --bs-primary:#1E6B58;
  --bs-body-bg:#F6F8F5;
  --bs-body-color:#191E1C;
  --bs-border-color:#E3E8E4;
  --bs-border-radius:8px;
  --bs-font-sans-serif:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .22s ease;}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.section{padding:88px 0;}
.section--tight{padding:64px 0;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  box-shadow:0 1px 2px rgba(16,32,27,.06);
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:68px;position:relative;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:16px;font-weight:700;letter-spacing:-.01em;color:var(--c-text);
  white-space:nowrap;
}
.brand:hover{color:var(--c-primary);}
.brand-mark{
  width:28px;height:28px;flex:0 0 28px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-primary);
  background:var(--c-primary-l);border-radius:9px;
}
.brand-mark svg{width:18px;height:18px;}

.nav-links{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;
  font-size:16px;font-weight:500;color:var(--c-text-2);
  padding:6px 0;
  transition:color .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--c-primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .28s var(--ease);
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--c-primary);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}

.nav-right{display:flex;align-items:center;gap:12px;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 16px;
  background:var(--c-bg);
  border:1px solid var(--c-line);
  border-radius:999px;
  transition:border-color .22s ease,background .22s ease;
}
.nav-search:focus-within{border-color:var(--c-primary);background:#fff;}
.nav-search svg{width:16px;height:16px;color:var(--c-text-3);flex:0 0 16px;}
.nav-search input{
  width:130px;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--c-text);
}
.nav-search input::placeholder{color:var(--c-text-3);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;
  border-radius:var(--r-md);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:all .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-d);color:#fff;box-shadow:var(--sh-md);}
.btn-primary:active{background:var(--c-primary-d);transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-l);color:var(--c-primary-d);}
.btn-accent{background:var(--c-accent);color:#2A1C03;}
.btn-accent:hover{background:#d18f2d;color:#2A1C03;box-shadow:var(--sh-md);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-lg{height:52px;padding:0 30px;font-size:16px;}
.btn[disabled],.btn:disabled{opacity:.5;cursor:not-allowed;box-shadow:none;}
.btn-arrow{transition:transform .22s ease;display:inline-block;}
.btn:hover .btn-arrow{transform:translateX(2px);}

.nav-toggle{
  display:none;position:relative;
  width:40px;height:40px;padding:0;
  background:#fff;border:1px solid var(--c-line);border-radius:10px;
  cursor:pointer;
}
.nav-toggle span{
  position:absolute;left:50%;top:50%;
  width:16px;height:2px;margin:-1px 0 0 -8px;
  background:var(--c-text);border-radius:2px;
  transition:background .22s ease;
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";position:absolute;left:0;
  width:16px;height:2px;background:var(--c-text);border-radius:2px;
  transition:transform .22s ease,top .22s ease;
}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg);}

/* ---------- 页面页头 ---------- */
.page-head{
  position:relative;
  overflow:hidden;
  padding:72px 0 68px;
  text-align:center;
  background:
    radial-gradient(900px 300px at 50% -50%, rgba(30,107,88,.12), transparent 72%),
    linear-gradient(180deg,#ffffff 0%, var(--c-bg) 100%);
  border-bottom:1px solid var(--c-line);
}
.page-head::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--c-mist),transparent);
  opacity:.45;
}
.page-head .deco-num{
  font-size:96px;font-weight:800;line-height:1;letter-spacing:-.05em;
  color:rgba(30,107,88,.12);
  font-variant-numeric:tabular-nums;
  margin-bottom:10px;
}
.page-head h1{
  font-size:40px;font-weight:800;line-height:1.2;letter-spacing:-.02em;
  margin-bottom:18px;
}
.page-head .lede{
  max-width:660px;margin:0 auto;
  font-size:17px;color:var(--c-text-2);line-height:1.85;
}
.crumb{display:flex;justify-content:center;margin-bottom:22px;}
.crumb ol{display:flex;list-style:none;font-size:13px;color:var(--c-text-3);}
.crumb li+li::before{content:"/";margin:0 8px;color:var(--c-text-3);}
.crumb a:hover{color:var(--c-primary);}
.crumb li[aria-current]{color:var(--c-primary);font-weight:600;}

/* ---------- 通用区块头 ---------- */
.section-head-center{text-align:center;max-width:720px;margin:0 auto 48px;}
.eyebrow{
  display:inline-block;
  height:26px;line-height:26px;padding:0 12px;
  border-radius:999px;
  background:var(--c-primary-l);color:var(--c-primary);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  margin-bottom:16px;
}
.section-head-center h2{
  font-size:32px;font-weight:700;line-height:1.3;letter-spacing:-.01em;
  margin-bottom:14px;
}
.section-head-center p{color:var(--c-text-2);font-size:16px;}

/* ---------- 场景交替列表 ---------- */
.scene-list{max-width:1040px;margin:0 auto;}
.scene-item{
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:44px;align-items:center;
  padding:38px 0;
  border-bottom:1px solid var(--c-line);
}
.scene-item:first-child{border-top:1px solid var(--c-line);}
.scene-media{overflow:hidden;border-radius:16px;box-shadow:var(--sh-sm);}
.scene-media img{
  width:100%;aspect-ratio:16 / 10;object-fit:cover;
  border-radius:16px;
  transition:transform .45s var(--ease);
}
.scene-item:hover .scene-media img{transform:scale(1.03);}
.tag{
  display:inline-block;
  height:26px;line-height:26px;padding:0 12px;
  border-radius:999px;
  background:var(--c-primary-l);color:var(--c-primary);
  font-size:12.5px;font-weight:600;
}
.scene-body h3{font-size:22px;font-weight:600;margin:14px 0 12px;line-height:1.45;}
.scene-body p{color:var(--c-text-2);font-size:15px;line-height:1.8;margin-bottom:16px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-weight:600;font-size:15px;
}
.link-arrow .arrow{display:inline-block;transition:transform .22s ease;}
.link-arrow:hover{color:var(--c-primary-d);}
.link-arrow:hover .arrow{transform:translateX(3px);}

/* ---------- 保障条（浅底版） ---------- */
.assure-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:1px;background:var(--c-line);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-sm);
}
.assure-item{background:#fff;padding:28px 24px;}
.assure-item .ico{
  width:28px;height:28px;color:var(--c-primary);
  margin-bottom:14px;
}
.assure-item h4{font-size:16px;font-weight:600;margin-bottom:8px;}
.assure-item p{font-size:14px;color:var(--c-text-2);line-height:1.75;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq .accordion-item{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--sh-sm);
  transition:box-shadow .22s ease;
}
.faq .accordion-item:hover{box-shadow:var(--sh-md);}
.faq .accordion-button{
  background:#fff;
  color:var(--c-text);
  font-size:16px;font-weight:600;
  padding:20px 22px;
  border-radius:var(--r-md)!important;
  box-shadow:none;
  transition:background .22s ease,color .22s ease;
}
.faq .accordion-button:not(.collapsed){
  color:var(--c-primary);
  background:var(--c-primary-l);
  box-shadow:inset 3px 0 0 var(--c-primary);
}
.faq .accordion-button:focus{box-shadow:inset 3px 0 0 var(--c-primary);outline:none;}
.faq .accordion-button::after{
  width:14px;height:14px;background-size:14px;
  transition:transform .24s var(--ease);
}
.faq .accordion-body{
  padding:4px 22px 22px;
  font-size:15px;color:var(--c-text-2);line-height:1.85;
}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--c-ink);
  border-radius:var(--r-lg);
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;
  gap:32px;
  color:#fff;
  box-shadow:var(--sh-lg);
}
.cta-band h2{font-size:28px;font-weight:700;line-height:1.35;margin-bottom:10px;color:#fff;}
.cta-band p{font-size:14.5px;color:rgba(255,255,255,.72);}
.cta-band .cta-side{display:flex;flex-direction:column;align-items:flex-end;gap:10px;}
.cta-band .cta-note{font-size:13px;color:rgba(255,255,255,.6);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-ink);
  color:rgba(255,255,255,.82);
  padding:64px 0 28px;
  margin-top:88px;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.3fr;
  gap:0;
}
.footer-grid > div{padding:0 26px;}
.footer-grid > div:first-child{padding-left:0;}
.footer-grid > div + div{border-left:1px solid rgba(255,255,255,.08);}
.footer-brand .brand{color:#fff;margin-bottom:16px;}
.footer-brand .brand:hover{color:var(--c-mist);}
.footer-brand .brand-mark{background:rgba(255,255,255,.1);color:var(--c-mist);}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:320px;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col a,.footer-col span{
  display:block;
  font-size:14px;color:rgba(255,255,255,.66);
  margin-bottom:10px;line-height:1.7;
}
.footer-col a:hover{color:var(--c-mist);}
.footer-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.7);}
.footer-bottom a:hover{color:var(--c-mist);}

/* ---------- 入场动效 ---------- */
.reveal{
  opacity:0;transform:translateY(12px);
  transition:opacity .3s ease,transform .3s var(--ease);
}
.reveal.in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{max-width:960px;}
  .page-head h1{font-size:36px;}
}
@media (max-width:991px){
  .nav-links{
    position:absolute;top:68px;left:-20px;right:-20px;
    display:none;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;
    padding:8px 20px 16px;
    border-bottom:1px solid var(--c-line);
    box-shadow:var(--sh-md);
  }
  .nav-links.open{display:flex;}
  .nav-link{
    width:100%;padding:14px 0;
    border-bottom:1px solid var(--c-line);
    font-size:15px;
  }
  .nav-link::after{display:none;}
  .nav-link.active{background:var(--c-primary-l);padding-left:12px;border-radius:8px;}
  .nav-search{display:none;}
  .nav-toggle{display:block;}
  .section{padding:64px 0;}
  .scene-item{gap:32px;}
}
@media (max-width:860px){
  .assure-strip{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 0;}
  .footer-grid > div{padding:0 18px;}
  .footer-grid > div:nth-child(odd){padding-left:0;}
  .footer-grid > div + div{border-left:0;}
  .footer-grid > div:nth-child(3){border-left:0;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .nav-wrap{height:60px;}
  .nav-links{top:60px;}
  .page-head{padding:48px 0 44px;}
  .page-head .deco-num{font-size:70px;}
  .page-head h1{font-size:30px;}
  .page-head .lede{font-size:15.5px;}
  .section{padding:48px 0;}
  .section-head-center h2{font-size:26px;}
  .scene-item{grid-template-columns:1fr;gap:20px;padding:28px 0;}
  .scene-body h3{font-size:20px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px;}
  .cta-band h2{font-size:23px;}
  .cta-band .cta-side{align-items:flex-start;width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-grid > div{padding:0;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .site-footer{margin-top:56px;}
}
@media (max-width:520px){
  .assure-strip{grid-template-columns:1fr;}
  .btn{padding:0 20px;font-size:14.5px;}
  .btn-lg{height:48px;padding:0 24px;font-size:15px;}
  .page-head h1{font-size:26px;}
  .section-head-center h2{font-size:23px;}
}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1!important;transform:none!important;transition:none!important;}
  .scene-item .scene-media img{transition:none!important;}
  .btn,.link-arrow .arrow{transition:none!important;}
}