/* roulang page: index */
:root{
  --primary:#0E3B33;
  --primary-600:#15695A;
  --primary-100:#E3EFEA;
  --accent:#E9673F;
  --accent-dark:#D2552E;
  --mint:#7FD3BE;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E4DED3;
  --img-ph:#EDE7DC;
  --text:#1C1A17;
  --text-2:#6B6459;
  --text-inv:#F4F1EA;
  --radius-card:16px;
  --radius-img:20px;
  --radius-input:12px;
  --radius-pill:999px;
  --radius-badge:6px;
  --shadow-1:0 1px 2px rgba(20,26,22,.04);
  --shadow-2:0 12px 32px -12px rgba(14,59,51,.18);
  --shadow-3:0 18px 40px -14px rgba(14,59,51,.24);
  --h1:clamp(30px,4.2vw,46px);
  --h2:clamp(24px,3vw,32px);
  --h3:20px;
  --body:16px;
  --small:14px;
  --tiny:13px;
  --space-section:clamp(56px,8vw,96px);
  --trans:220ms ease;
  --font: "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:var(--body);
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;background-color:var(--img-ph);}
a{color:var(--primary-600);text-decoration:none;transition:color var(--trans);}
a:hover{color:var(--accent);}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(233,103,63,.35);outline-offset:2px;border-radius:4px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.num{font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{
  position:fixed;
  inset:0 0 auto 0;
  z-index:80;
  background:transparent;
  background-image:linear-gradient(180deg,rgba(14,59,51,.86) 0%,rgba(14,59,51,.62) 100%);
  transition:background-color var(--trans),box-shadow var(--trans),background-image var(--trans);
}
.site-header.is-scrolled{
  background:var(--surface);
  background-image:none;
  border-bottom:1px solid var(--line);
  box-shadow:0 6px 22px -16px rgba(14,59,51,.45);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:64px;
}
.brand{
  display:flex;
  align-items:baseline;
  gap:10px;
  font-size:19px;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--text-inv);
  white-space:nowrap;
}
.brand-mark{
  width:10px;height:10px;background:var(--accent);display:inline-block;border-radius:2px;
}
.brand-sub{
  font-size:12px;
  font-weight:400;
  letter-spacing:.06em;
  color:rgba(244,241,234,.66);
}
.site-header.is-scrolled .brand{color:var(--primary);}
.site-header.is-scrolled .brand-sub{color:var(--text-2);}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:12px;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  color:rgba(244,241,234,.88);
  border-radius:8px;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:center;
  transition:transform var(--trans);
}
.nav-links a:hover{color:#fff;}
.nav-links a:hover::after{transform:scaleX(1);}
.site-header.is-scrolled .nav-links a{color:var(--text);}
.site-header.is-scrolled .nav-links a:hover{color:var(--primary-600);}
.nav-links a[aria-current="page"]{color:#fff;}
.nav-links a[aria-current="page"]::after{transform:scaleX(1);}
.site-header.is-scrolled .nav-links a[aria-current="page"]{color:var(--primary);}
.nav-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.nav-search{
  display:flex;
  align-items:center;
  gap:8px;
  height:38px;
  padding:0 14px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(244,241,234,.34);
  background:rgba(244,241,234,.10);
  color:rgba(244,241,234,.8);
  transition:border-color var(--trans),background-color var(--trans);
}
.nav-search input{
  width:118px;
  border:0;
  background:transparent;
  color:inherit;
  font-size:14px;
  outline:none;
}
.nav-search input::placeholder{color:rgba(244,241,234,.62);}
.site-header.is-scrolled .nav-search{border-color:var(--line);background:var(--bg);color:var(--text-2);}
.site-header.is-scrolled .nav-search input::placeholder{color:var(--text-2);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:13px 26px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  text-align:center;
  transition:transform var(--trans),background-color var(--trans),color var(--trans),border-color var(--trans),box-shadow var(--trans);
}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 24px -14px rgba(233,103,63,.9);}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--text-inv);border-color:rgba(244,241,234,.5);}
.btn-ghost:hover{background:rgba(244,241,234,.14);color:#fff;transform:translateY(-2px);}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-outline:hover{background:var(--primary-100);color:var(--primary);transform:translateY(-2px);}
.btn-dark{background:var(--primary);color:var(--text-inv);}
.btn-dark:hover{background:var(--primary-600);color:#fff;transform:translateY(-2px);}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}
.nav-cta{min-height:40px;padding:9px 20px;font-size:14px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid rgba(244,241,234,.4);
  background:transparent;
  border-radius:12px;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-inv);border-radius:2px;}
.site-header.is-scrolled .nav-toggle{border-color:var(--line);}
.site-header.is-scrolled .nav-toggle span{background:var(--primary);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,59,51,.5);
  opacity:0;visibility:hidden;transition:opacity var(--trans),visibility var(--trans);z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:86vw;max-width:360px;
  background:var(--surface);
  z-index:95;
  transform:translateX(100%);
  transition:transform 260ms ease;
  padding:22px 22px 32px;
  display:flex;flex-direction:column;gap:18px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-title{font-size:17px;font-weight:700;color:var(--primary);}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--line);background:var(--surface);
  border-radius:12px;font-size:18px;color:var(--text-2);line-height:1;
}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  padding:12px 14px;border-radius:12px;color:var(--text);font-size:15px;
  border:1px solid transparent;
}
.drawer-nav a:hover{background:var(--primary-100);color:var(--primary);border-color:var(--line);}
.drawer-nav a[aria-current="page"]{background:var(--primary-100);color:var(--primary);font-weight:600;}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;}

/* ---------- hero ---------- */
.hero{
  position:relative;
  padding:112px 0 var(--space-section);
  background:var(--primary);
  color:var(--text-inv);
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;inset:0;
  background:
    radial-gradient(720px 380px at 88% 12%,rgba(127,211,190,.18),transparent 70%),
    radial-gradient(560px 320px at 4% 92%,rgba(233,103,63,.18),transparent 72%);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
  align-items:center;
  min-height:520px;
}
.hero-copy{grid-column:span 6;}
.hero-media{grid-column:span 6;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;
  color:var(--mint);
  text-transform:none;
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:8px;height:8px;background:var(--accent);border-radius:2px;}
.hero h1{
  font-size:var(--h1);
  line-height:1.25;
  letter-spacing:.01em;
  font-weight:700;
  margin-bottom:18px;
}
.hero h1 em{font-style:normal;color:var(--mint);}
.hero-lead{
  font-size:19px;
  line-height:1.8;
  color:rgba(244,241,234,.84);
  max-width:560px;
  margin-bottom:28px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;
  max-width:560px;
  padding-top:24px;
  border-top:1px solid rgba(244,241,234,.18);
}
.hero-stat strong{
  display:block;
  font-size:24px;
  line-height:1.3;
  color:#fff;
  font-variant-numeric:tabular-nums;
}
.hero-stat span{font-size:13px;color:rgba(244,241,234,.7);}
.hero-media{position:relative;}
.hero-media > img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--radius-img);
  box-shadow:0 28px 60px -28px rgba(0,0,0,.6);
}
.hero-float{
  position:absolute;
  left:-24px;
  bottom:-26px;
  width:220px;
  background:var(--surface);
  border-radius:10px;
  padding:10px;
  box-shadow:0 18px 40px -16px rgba(0,0,0,.5);
  display:flex;
  gap:10px;
  align-items:center;
}
.hero-float img{width:56px;height:56px;border-radius:8px;object-fit:cover;flex:none;}
.hero-float b{display:block;font-size:14px;color:var(--primary);line-height:1.5;}
.hero-float small{display:block;font-size:12px;color:var(--text-2);line-height:1.5;}

/* ---------- section base ---------- */
.section{padding:var(--space-section) 0;}
.section-alt{background:var(--surface);}
.section-sand{background:var(--bg);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.section-head h2{
  font-size:var(--h2);
  line-height:1.35;
  color:var(--primary);
  font-weight:700;
  position:relative;
  padding-left:18px;
}
.section-head h2::before{
  content:"";
  position:absolute;left:0;top:.28em;
  width:8px;height:calc(100% - .56em);
  max-height:30px;
  background:var(--accent);
  border-radius:2px;
}
.section-head p{
  margin-top:12px;
  color:var(--text-2);
  font-size:15px;
  max-width:640px;
}
.link-more{
  color:var(--accent);
  font-size:15px;
  font-weight:600;
  text-decoration:underline;
  text-underline-offset:4px;
  text-decoration-thickness:1px;
  white-space:nowrap;
}
.link-more:hover{text-decoration-thickness:3px;color:var(--accent-dark);}

/* ---------- product grid ---------- */
.grid-4{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:box-shadow var(--trans),transform var(--trans);
}
.card:hover{box-shadow:var(--shadow-3);transform:translateY(-2px);}
.card-media{overflow:hidden;border-radius:0;}
.card-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  transition:transform 240ms ease;
}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{
  font-size:var(--h3);
  line-height:1.5;
  color:var(--primary);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-desc{
  font-size:14px;
  line-height:1.7;
  color:var(--text-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-spec{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.tag{
  display:inline-block;
  padding:4px 10px;
  font-size:13px;
  line-height:1.5;
  border-radius:var(--radius-badge);
  background:var(--primary-100);
  color:var(--primary);
}
.card-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:14px;
  border-top:1px solid var(--line);
}
.price{
  font-size:18px;
  font-weight:700;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.price small{font-size:12px;font-weight:400;color:var(--text-2);}

/* ---------- news ---------- */
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.news-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:22px;
  display:flex;
  flex-direction:column;
  gap:12px;
  color:inherit;
  transition:box-shadow var(--trans),transform var(--trans),border-color var(--trans);
}
.news-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:var(--primary-100);color:inherit;}
.news-card h3{
  font-size:17px;
  line-height:1.6;
  color:var(--primary);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card p{
  font-size:14px;
  line-height:1.7;
  color:var(--text-2);
  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;
  gap:12px;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-2);
}
.badge{
  display:inline-block;
  padding:3px 10px;
  font-size:13px;
  line-height:1.6;
  border-radius:var(--radius-badge);
  background:var(--primary-100);
  color:var(--primary);
  transition:background-color var(--trans),color var(--trans);
}
.news-card:hover .badge{background:var(--accent);color:#fff;}
.news-card time{font-variant-numeric:tabular-nums;}
.empty-state{
  grid-column:1 / -1;
  background:var(--surface);
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
  padding:48px 24px;
  text-align:center;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:14px;
}
.empty-state svg{width:40px;height:40px;stroke:var(--text-2);fill:none;stroke-width:1.6;}
.empty-state p{font-size:15px;color:var(--text-2);}

/* ---------- metrics ---------- */
.metrics{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.metric{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px 22px;
  box-shadow:var(--shadow-1);
}
.metric strong{
  display:block;
  font-size:32px;
  line-height:1.2;
  color:var(--primary);
  font-variant-numeric:tabular-nums;
  margin-bottom:8px;
}
.metric strong span{font-size:16px;color:var(--mint);}
.metric p{font-size:14px;color:var(--text-2);line-height:1.7;}
.metric-bar{height:6px;border-radius:999px;background:var(--primary-100);overflow:hidden;margin-top:14px;}
.metric-bar i{display:block;height:100%;background:var(--mint);border-radius:999px;}

/* ---------- reviews ---------- */
.reviews{
  background:var(--primary);
  color:var(--text-inv);
  padding:var(--space-section) 0;
}
.reviews .section-head h2{color:#fff;}
.reviews .section-head p{color:rgba(244,241,234,.76);}
.review-viewport{overflow:hidden;}
.review-track{
  display:flex;
  gap:24px;
  transition:transform 320ms ease;
}
.review-card{
  flex:0 0 calc((100% - 48px) / 3);
  background:rgba(244,241,234,.06);
  border:1px solid rgba(244,241,234,.16);
  border-radius:var(--radius-card);
  padding:26px;
  display:flex;
  flex-direction:column;
  gap:16px;
}
.review-top{display:flex;align-items:center;gap:14px;}
.avatar{
  width:48px;height:48px;border-radius:50%;
  overflow:hidden;flex:none;
  border:1px solid rgba(244,241,234,.3);
}
.avatar img{width:100%;height:100%;object-fit:cover;}
.review-name{font-size:15px;font-weight:600;color:#fff;line-height:1.5;}
.review-role{font-size:13px;color:rgba(244,241,234,.66);line-height:1.5;}
.stars{color:var(--mint);letter-spacing:3px;font-size:14px;}
.review-card p{font-size:15px;line-height:1.85;color:rgba(244,241,234,.86);}
.review-nav{
  display:flex;
  align-items:center;
  gap:14px;
  margin-top:32px;
}
.review-arrow{
  width:44px;height:44px;border-radius:50%;
  border:1px solid rgba(244,241,234,.4);
  background:transparent;color:var(--text-inv);
  font-size:16px;line-height:1;
  transition:background-color var(--trans),border-color var(--trans);
}
.review-arrow:hover{background:rgba(244,241,234,.12);border-color:var(--mint);}
.review-dots{display:flex;gap:8px;margin-left:auto;}
.review-dots button{
  width:9px;height:9px;border-radius:50%;border:0;padding:0;
  background:rgba(244,241,234,.32);
  transition:background-color var(--trans),transform var(--trans);
}
.review-dots button.is-active{background:var(--mint);transform:scale(1.25);}

/* ---------- guarantee ---------- */
.guarantee{background:var(--bg);padding:var(--space-section) 0;}
.guarantee-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.guarantee-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px 22px;
  box-shadow:var(--shadow-1);
  transition:box-shadow var(--trans),transform var(--trans);
}
.guarantee-item:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.guarantee-icon{
  width:46px;height:46px;border-radius:12px;
  background:var(--primary-100);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:16px;
}
.guarantee-icon svg{width:22px;height:22px;stroke:var(--primary);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.guarantee-item h3{font-size:17px;color:var(--primary);margin-bottom:8px;}
.guarantee-item p{font-size:14px;line-height:1.7;color:var(--text-2);}

/* ---------- cta ---------- */
.cta{
  background:var(--primary);
  color:var(--text-inv);
  padding:var(--space-section) 0;
}
.cta-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
  align-items:center;
}
.cta-copy{grid-column:span 6;}
.cta-copy h2{
  font-size:var(--h2);
  line-height:1.35;
  color:#fff;
  margin-bottom:16px;
}
.cta-copy p{font-size:16px;line-height:1.85;color:rgba(244,241,234,.82);max-width:520px;}
.cta-panel{grid-column:span 6;}
.form-card{
  background:var(--surface);
  border-radius:var(--radius-card);
  padding:28px;
  box-shadow:0 24px 54px -26px rgba(0,0,0,.55);
}
.form-card h3{font-size:18px;color:var(--primary);margin-bottom:6px;}
.form-card .form-tip{font-size:13px;color:var(--text-2);margin-bottom:18px;}
.field{margin-bottom:16px;}
.field label{
  display:block;font-size:13px;color:var(--text-2);margin-bottom:8px;
}
.field input{
  width:100%;
  min-height:48px;
  padding:12px 14px;
  border:1px solid var(--line);
  border-radius:var(--radius-input);
  background:var(--bg);
  color:var(--text);
  transition:border-color var(--trans),box-shadow var(--trans),background-color var(--trans);
}
.field input::placeholder{color:#A9A296;}
.field input:focus{
  outline:none;
  background:var(--surface);
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(21,105,90,.16);
}
.field.has-error input{border-color:var(--accent);box-shadow:0 0 0 3px rgba(233,103,63,.16);}
.field .field-msg{display:none;font-size:13px;color:var(--accent);margin-top:8px;}
.field.has-error .field-msg{display:block;}
.form-note{font-size:13px;color:var(--text-2);margin-top:12px;}
.form-alert{
  display:none;
  margin-top:16px;
  padding:12px 14px;
  border-radius:10px;
  font-size:14px;
  line-height:1.6;
}
.form-alert.is-success{
  display:block;
  background:rgba(127,211,190,.18);
  border:1px solid rgba(127,211,190,.6);
  color:var(--primary);
}

/* ---------- faq ---------- */
.faq-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
}
.faq-intro{grid-column:span 5;}
.faq-intro h2{
  font-size:var(--h2);
  line-height:1.35;
  color:var(--primary);
  position:relative;
  padding-left:18px;
  margin-bottom:18px;
}
.faq-intro h2::before{
  content:"";position:absolute;left:0;top:.28em;
  width:8px;height:calc(100% - .56em);max-height:30px;
  background:var(--accent);border-radius:2px;
}
.faq-intro p{font-size:15px;color:var(--text-2);line-height:1.85;margin-bottom:20px;}
.faq-list{grid-column:span 7;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:box-shadow var(--trans);
}
.faq-item:hover{box-shadow:var(--shadow-2);}
.faq-q{
  width:100%;
  text-align:left;
  background:transparent;
  border:0;
  padding:20px 22px 20px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--primary);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  position:relative;
}
.faq-q::before{
  content:"";
  position:absolute;left:0;top:14px;bottom:14px;
  width:3px;background:var(--accent);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform var(--trans);
}
.faq-item.is-open .faq-q::before{transform:scaleY(1);}
.faq-arrow{
  flex:none;
  width:20px;height:20px;
  stroke:var(--text-2);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;
  transition:transform var(--trans);
}
.faq-item.is-open .faq-arrow{transform:rotate(180deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 280ms ease;
}
.faq-a p{
  padding:0 22px 22px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}

/* ---------- footer ---------- */
.site-footer{
  background:var(--primary);
  color:var(--text-inv);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:32px;
  padding-bottom:48px;
}
.footer-brand{
  display:flex;align-items:baseline;gap:10px;
  font-size:19px;font-weight:700;color:#fff;margin-bottom:16px;
}
.footer-brand span{width:10px;height:10px;background:var(--accent);border-radius:2px;display:inline-block;}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(244,241,234,.74);max-width:320px;}
.footer-col h4{
  font-size:15px;
  color:#fff;
  margin-bottom:16px;
  font-weight:600;
  letter-spacing:.02em;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(244,241,234,.76);}
.footer-links a:hover{color:var(--mint);}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:rgba(244,241,234,.76);}
.footer-contact b{color:#fff;font-weight:600;font-variant-numeric:tabular-nums;}
.footer-bottom{
  border-top:1px solid rgba(244,241,234,.16);
  padding:22px 0;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  font-size:13px;
  color:rgba(244,241,234,.66);
}
.footer-social{display:flex;gap:12px;}
.footer-social a{
  width:36px;height:36px;border-radius:50%;
  border:1px solid rgba(244,241,234,.3);
  display:flex;align-items:center;justify-content:center;
  transition:border-color var(--trans),background-color var(--trans);
}
.footer-social a:hover{border-color:var(--mint);background:rgba(127,211,190,.14);}
.footer-social svg{width:16px;height:16px;stroke:rgba(244,241,234,.8);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .container{padding:0 20px;}
  .grid-4{grid-template-columns:repeat(3,minmax(0,1fr));}
  .review-card{flex:0 0 calc((100% - 24px) / 2);}
}
@media (max-width:992px){
  .nav-links{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:flex;}
  .hero{padding-top:100px;}
  .hero-copy{grid-column:span 12;}
  .hero-media{grid-column:span 12;margin-top:36px;}
  .hero-float{left:auto;right:16px;bottom:-20px;width:200px;}
  .grid-4{grid-template-columns:repeat(3,minmax(0,1fr));}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr));}
  .guarantee-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-copy,.cta-panel{grid-column:span 12;}
  .faq-intro,.faq-list{grid-column:span 12;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:768px){
  :root{--body:15.5px;--space-section:56px;}
  .container{padding:0 16px;}
  .brand{font-size:17px;}
  .brand-sub{display:none;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .hero h1{font-size:clamp(27px,7vw,34px);}
  .hero-lead{font-size:16px;}
  .hero-stats{grid-template-columns:1fr 1fr;gap:14px;}
  .review-track{gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px;}
  .review-card{flex:0 0 86%;scroll-snap-align:start;}
  .review-arrow{display:none;}
  .review-dots{margin-left:0;}
}
@media (max-width:560px){
  .grid-4{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .metrics{grid-template-columns:1fr;}
  .guarantee-grid{grid-template-columns:1fr;}
  .hero-stats{grid-template-columns:1fr;gap:12px;}
  .hero-float{position:static;width:100%;margin-top:16px;left:auto;bottom:auto;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .btn{width:100%;}
  .hero-cta .btn{width:100%;}
}
@media (max-width:380px){
  .brand{font-size:16px;}
  .metric strong{font-size:26px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --primary:#0E3B33;
  --primary-600:#15695A;
  --primary-100:#E3EFEA;
  --accent:#E9673F;
  --accent-dark:#D2552E;
  --mint:#7FD3BE;
  --bg:#F7F4EE;
  --bg-sand:#F2EDE4;
  --surface:#FFFFFF;
  --line:#E4DED3;
  --img-ph:#EDE7DC;
  --text:#1C1A17;
  --text-2:#6B6459;
  --text-inv:#F4F1EA;
  --r-card:16px;
  --r-img:20px;
  --r-input:12px;
  --r-pill:999px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(20,26,22,.04);
  --sh-card:0 12px 32px -12px rgba(14,59,51,.18);
  --sh-hover:0 18px 40px -14px rgba(14,59,51,.24);
  --space-block:clamp(56px,8vw,96px);
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-top:var(--nav-h);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
h1,h2,h3,h4,p,figure{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
svg{display:block}
.num{font-variant-numeric:tabular-nums}

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

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:var(--primary);
  color:var(--text-inv);
  transition:background-color .24s ease,color .24s ease,box-shadow .24s ease;
}
.site-header.is-scrolled{
  background:var(--surface);
  color:var(--text);
  box-shadow:0 1px 0 var(--line),0 10px 28px -20px rgba(14,59,51,.45);
}
.nav-inner{display:flex;align-items:center;gap:28px;height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.brand-mark{width:10px;height:10px;border-radius:2px;background:var(--accent);flex:none}
.brand-sub{
  font-size:12px;font-weight:400;opacity:.7;
  padding-left:10px;margin-left:2px;
  border-left:1px solid currentColor;
  letter-spacing:.02em;
}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{
  position:relative;font-size:15px;padding:6px 0;opacity:.85;
  transition:opacity .2s ease,color .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-links a:hover{opacity:1}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a[aria-current="page"]{opacity:1;font-weight:600}
.nav-links a[aria-current="page"]::after{transform:scaleX(1)}
.site-header.is-scrolled .nav-links a{color:var(--text-2)}
.site-header.is-scrolled .nav-links a:hover,
.site-header.is-scrolled .nav-links a[aria-current="page"]{color:var(--primary)}
.nav-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--r-pill);
  background:rgba(244,241,234,.12);
  border:1px solid rgba(244,241,234,.24);
  transition:background-color .24s ease,border-color .24s ease;
}
.site-header.is-scrolled .nav-search{background:#fff;border-color:var(--line);color:var(--text-2)}
.nav-search input{
  width:132px;border:0;background:transparent;outline:none;
  font-size:14px;color:inherit;
}
.nav-search input::placeholder{color:currentColor;opacity:.6}
.nav-search:focus-within{box-shadow:0 0 0 3px rgba(233,103,63,.28)}
.nav-cta{min-height:40px;padding:9px 20px;font-size:14px}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 10px;
  background:transparent;border:1px solid currentColor;border-radius:10px;
  cursor:pointer;opacity:.85;
}
.nav-toggle span{display:block;height:2px;background:currentColor;border-radius:2px}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;z-index:70;
  background:rgba(14,59,51,.5);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;top:0;right:0;z-index:80;
  width:min(86vw,340px);height:100%;
  background:var(--surface);color:var(--text);
  padding:26px 22px 36px;overflow-y:auto;
  transform:translateX(103%);
  transition:transform .28s ease;
  box-shadow:-20px 0 40px -30px rgba(14,59,51,.6);
}
.nav-drawer.is-open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-head strong{font-size:17px}
.drawer-close{
  width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line);background:#fff;
  font-size:20px;line-height:1;cursor:pointer;color:var(--text-2);
}
.drawer-close:hover{color:var(--accent);border-color:var(--accent)}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin-bottom:24px}
.drawer-links a{
  padding:12px 12px;border-radius:10px;font-size:15.5px;color:var(--text-2);
  transition:background-color .2s ease,color .2s ease;
}
.drawer-links a:hover{background:var(--primary-100);color:var(--primary)}
.drawer-links a[aria-current="page"]{background:var(--primary-100);color:var(--primary);font-weight:600}
.drawer-foot{display:flex;flex-direction:column;gap:12px}
.drawer-note{font-size:13px;color:var(--text-2);line-height:1.7}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 26px;
  border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  cursor:pointer;text-align:center;
  transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:var(--sh-hover)}
.btn-primary:active{transform:none;background:var(--accent-dark)}
.btn-outline{border-color:var(--primary-600);color:var(--primary);background:transparent}
.btn-outline:hover{background:var(--primary-100);transform:translateY(-2px)}
.btn-on-dark{border-color:rgba(244,241,234,.5);color:var(--text-inv);background:transparent}
.btn-on-dark:hover{background:rgba(244,241,234,.14);transform:translateY(-2px)}
.btn:focus-visible{outline:3px solid rgba(233,103,63,.35);outline-offset:2px}
.btn[disabled]{opacity:.55;cursor:not-allowed;filter:saturate(.6);transform:none}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--accent);font-weight:600;font-size:15px;
  text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px;
  transition:text-decoration-thickness .2s ease,color .2s ease;
}
.btn-link:hover{text-decoration-thickness:2px;color:var(--accent-dark)}

/* ---------- 通用排版 ---------- */
.sec{padding:var(--space-block) 0}
.sec--sand{background:var(--bg-sand)}
.sec--white{background:var(--surface)}
.sec-head{max-width:760px;margin-bottom:46px}
.sec-title{
  position:relative;padding-left:20px;
  font-size:clamp(24px,3vw,32px);line-height:1.35;font-weight:700;letter-spacing:.01em;
}
.sec-title::before{
  content:"";position:absolute;left:0;top:.52em;
  width:9px;height:9px;border-radius:2px;background:var(--accent);
}
.sec-sub{margin-top:14px;max-width:640px;color:var(--text-2);font-size:16.5px}
.tag{
  display:inline-block;font-size:13px;font-weight:600;
  padding:4px 11px;border-radius:var(--r-badge);
  background:var(--primary-100);color:var(--primary-600);
}
.tag--accent{background:rgba(233,103,63,.12);color:var(--accent-dark)}

/* ---------- 分类首屏 ---------- */
.cat-hero{position:relative;background:var(--primary);color:var(--text-inv);overflow:hidden}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
  opacity:.2;
}
.cat-hero::after{
  content:"";position:absolute;left:-80px;bottom:-120px;
  width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(127,211,190,.24),transparent 68%);
}
.cat-hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.05fr .95fr;
  gap:52px;align-items:center;
  min-height:420px;padding:52px 0 64px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(244,241,234,.68);margin-bottom:20px}
.breadcrumb a{color:rgba(244,241,234,.82);transition:color .2s ease}
.breadcrumb a:hover{color:var(--mint);text-decoration:underline;text-underline-offset:4px}
.breadcrumb span[aria-current]{color:var(--text-inv)}
.cat-hero h1{
  font-size:clamp(30px,4.2vw,46px);line-height:1.25;font-weight:700;
  letter-spacing:.01em;margin:18px 0 18px;
}
.cat-hero-lead{font-size:19px;color:rgba(244,241,234,.86);max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-facts{display:flex;flex-wrap:wrap;gap:30px;margin-top:34px;padding-top:24px;border-top:1px solid rgba(244,241,234,.18)}
.hero-fact b{display:block;font-size:24px;font-weight:700;color:var(--mint);line-height:1.3}
.hero-fact span{font-size:13.5px;color:rgba(244,241,234,.7)}
.hero-media{position:relative}
.hero-media-img{
  border-radius:var(--r-img);overflow:hidden;
  aspect-ratio:16/11;background:var(--img-ph);
  box-shadow:0 26px 60px -28px rgba(0,0,0,.6);
}
.hero-media-img img{width:100%;height:100%;object-fit:cover}
.hero-float{
  position:absolute;left:18px;bottom:-20px;
  background:var(--surface);color:var(--text);
  border-radius:10px;padding:14px 18px;
  box-shadow:var(--sh-hover);min-width:172px;
}
.hero-float strong{display:block;font-size:13px;color:var(--text-2);font-weight:500}
.hero-float b{font-size:22px;color:var(--accent);font-variant-numeric:tabular-nums}

/* ---------- Z 型图文 ---------- */
.zlist{display:flex;flex-direction:column}
.zrow{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:48px 0;border-bottom:1px solid var(--line);
}
.zrow:last-child{border-bottom:0;padding-bottom:0}
.zrow:first-child{padding-top:0}
.zrow.reverse .zmedia{order:2}
.zmedia{
  border-radius:var(--r-img);overflow:hidden;
  aspect-ratio:4/3;background:var(--img-ph);
  box-shadow:var(--sh-card);border:1px solid var(--line);
}
.zmedia img{width:100%;height:100%;object-fit:cover;transition:transform .32s ease}
.zmedia:hover img{transform:scale(1.03)}
.ztext h2{font-size:clamp(22px,2.6vw,28px);line-height:1.4;margin:16px 0 16px;font-weight:700}
.ztext p{color:var(--text-2);font-size:16.5px;margin-bottom:18px;max-width:640px}
.list-check{display:flex;flex-direction:column;gap:2px;margin-bottom:22px}
.list-check li{display:flex;gap:10px;font-size:15.5px;color:var(--text-2);padding:6px 0}
.list-check svg{flex:none;margin-top:7px;color:var(--primary-600)}

/* ---------- 参数对照卡片墙 ---------- */
.spec-wall{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.spec-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--sh-1);
  transition:box-shadow .22s ease,transform .22s ease;
  display:flex;flex-direction:column;
}
.spec-card:hover{box-shadow:var(--sh-card);transform:translateY(-2px)}
.spec-card h3{font-size:18px;font-weight:700;margin:14px 0 14px}
.spec-card p{font-size:14px;color:var(--text-2);line-height:1.75;margin-top:auto;padding-top:14px;border-top:1px dashed var(--line)}
.spec-rows{display:flex;flex-direction:column}
.spec-row{
  display:flex;align-items:baseline;justify-content:space-between;gap:14px;
  padding:9px 0;border-bottom:1px dashed var(--line);font-size:14.5px;color:var(--text-2);
}
.spec-row:last-child{border-bottom:0}
.spec-row b{font-variant-numeric:tabular-nums;color:var(--primary);font-weight:700;font-size:15px}

/* ---------- 落地步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 22px;box-shadow:var(--sh-1);
  transition:box-shadow .22s ease,transform .22s ease;
}
.step-card:hover{box-shadow:var(--sh-card);transform:translateY(-2px)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:50%;
  background:var(--primary-100);color:var(--primary);
  font-weight:700;font-variant-numeric:tabular-nums;font-size:15px;
  margin-bottom:16px;
}
.step-card h3{font-size:17px;font-weight:700;margin-bottom:10px}
.step-card p{font-size:14.5px;color:var(--text-2);line-height:1.8}

/* ---------- 返回入口 ---------- */
.back-row{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:36px}
.back-row span{font-size:14.5px;color:var(--text-2)}

/* ---------- 保障条 ---------- */
.guarantee{background:var(--bg-sand);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.g-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;padding:40px 0}
.g-item{display:flex;gap:14px;align-items:flex-start}
.g-icon{
  flex:none;width:42px;height:42px;border-radius:12px;
  background:var(--primary-100);color:var(--primary-600);
  display:flex;align-items:center;justify-content:center;
}
.g-item h3{font-size:15.5px;font-weight:700;margin-bottom:6px}
.g-item p{font-size:13.5px;color:var(--text-2);line-height:1.7}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start}
.faq-aside p{color:var(--text-2);font-size:15.5px;margin:16px 0 22px}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:var(--primary-100);box-shadow:var(--sh-1)}
.faq-item summary{
  position:relative;cursor:pointer;list-style:none;
  padding:18px 54px 18px 20px;font-size:16px;font-weight:600;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";position:absolute;right:22px;top:23px;
  width:8px;height:8px;
  border-right:2px solid var(--primary-600);
  border-bottom:2px solid var(--primary-600);
  transform:rotate(45deg);transition:transform .22s ease;
}
.faq-item[open] summary{color:var(--primary)}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-a{
  margin:0 20px 20px;padding-left:16px;
  border-left:3px solid var(--accent);
  font-size:15.5px;color:var(--text-2);line-height:1.85;
}

/* ---------- CTA 段 ---------- */
.cta-wrap{padding-bottom:var(--space-block)}
.cta-band{
  position:relative;overflow:hidden;
  background:var(--primary);color:var(--text-inv);
  border-radius:24px;padding:56px;
  display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;right:-100px;top:-120px;
  width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(233,103,63,.28),transparent 70%);
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{font-size:clamp(24px,3vw,34px);line-height:1.35;font-weight:700;margin-bottom:16px}
.cta-band p{color:rgba(244,241,234,.8);font-size:16px;max-width:520px}
.cta-points{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.cta-points span{
  font-size:13.5px;padding:6px 13px;border-radius:var(--r-badge);
  background:rgba(244,241,234,.12);border:1px solid rgba(244,241,234,.22);
}
.cta-form{background:rgba(244,241,234,.06);border:1px solid rgba(244,241,234,.18);border-radius:var(--r-card);padding:26px 24px}
.cta-form label{display:block;font-size:14px;font-weight:600;margin-bottom:12px}
.field{display:flex;flex-wrap:wrap;gap:12px}
.field input{
  flex:1 1 220px;min-height:50px;padding:0 16px;
  border-radius:var(--r-input);
  border:1px solid rgba(244,241,234,.3);
  background:rgba(255,255,255,.08);
  color:var(--text-inv);font-size:15px;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:rgba(244,241,234,.58)}
.field input:focus{border-color:var(--mint);box-shadow:0 0 0 3px rgba(127,211,190,.25)}
.cta-form.has-error .field input{border-color:var(--accent);box-shadow:0 0 0 3px rgba(233,103,63,.22)}
.form-error{display:none;margin-top:10px;font-size:13px;color:#FFD6C7}
.cta-form.has-error .form-error{display:block}
.form-success{
  display:none;margin-top:12px;padding:10px 14px;border-radius:10px;
  background:rgba(127,211,190,.18);border:1px solid rgba(127,211,190,.45);
  color:#D8F5EC;font-size:13.5px;
}
.cta-form.is-success .form-success{display:block}
.form-note{margin-top:12px;font-size:13px;color:rgba(244,241,234,.66);line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary);color:var(--text-inv);padding:64px 0 28px;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;margin-bottom:14px}
.footer-brand span{width:10px;height:10px;border-radius:2px;background:var(--accent);flex:none}
.footer-col p{color:rgba(244,241,234,.72);font-size:14px;line-height:1.85;max-width:300px}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{color:rgba(244,241,234,.75);font-size:14px;transition:color .2s ease}
.footer-links a:hover{color:var(--mint)}
.footer-contact{display:flex;flex-direction:column;gap:11px;color:rgba(244,241,234,.75);font-size:14px}
.footer-contact b{color:#fff;font-weight:700}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(244,241,234,.16);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:rgba(244,241,234,.62);
}
.footer-social{display:flex;gap:12px}
.footer-social a{
  width:34px;height:34px;border-radius:50%;
  border:1px solid rgba(244,241,234,.24);
  display:flex;align-items:center;justify-content:center;
  transition:border-color .2s ease,color .2s ease;
}
.footer-social a svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.footer-social a:hover{border-color:var(--mint);color:var(--mint)}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .container{max-width:1080px}
  .spec-wall{grid-template-columns:repeat(4,1fr);gap:20px}
}
@media (max-width:1024px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .cat-hero-inner{grid-template-columns:1fr;gap:36px;min-height:0;padding:44px 0 60px}
  .cat-hero-lead{max-width:none}
  .hero-media-img{aspect-ratio:16/9}
  .zrow{grid-template-columns:1fr;gap:28px;padding:36px 0}
  .zrow.reverse .zmedia{order:0}
  .spec-wall{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .faq-grid{grid-template-columns:1fr;gap:32px}
  .cta-band{grid-template-columns:1fr;padding:40px;gap:32px}
  .g-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  :root{--nav-h:56px}
  .container{padding:0 16px}
  body{font-size:15.5px}
  .nav-search{display:none}
  .hero-facts{gap:22px}
  .hero-fact b{font-size:21px}
  .spec-wall{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .g-grid{grid-template-columns:1fr;gap:20px;padding:32px 0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{margin-top:32px}
  .cta-band{padding:30px 22px;border-radius:18px}
  .cta-form{padding:20px 18px}
}
@media (max-width:560px){
  .brand-sub{display:none}
  .nav-cta{display:none}
  .cat-hero h1{margin:14px 0 14px}
  .hero-cta .btn{width:100%}
  .hero-float{left:12px;bottom:-16px;padding:12px 14px}
  .step-card,.spec-card{padding:22px 18px}
  .sec-head{margin-bottom:32px}
}
@media (max-width:380px){
  .container{padding:0 14px}
  .brand{font-size:17px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .zmedia:hover img{transform:none}
}

/* roulang page: article */
:root{
  --primary:#0E3B33;
  --primary-600:#15695A;
  --primary-100:#E3EFEA;
  --accent:#E9673F;
  --accent-dark:#D2552E;
  --mint:#7FD3BE;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E4DED3;
  --img-bg:#EDE7DC;
  --text:#1C1A17;
  --text-2:#6B6459;
  --inverse:#F4F1EA;
  --radius-card:16px;
  --radius-img:20px;
  --radius-input:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(20,26,22,.04);
  --shadow-card:0 12px 32px -12px rgba(14,59,51,.18);
  --shadow-hover:0 18px 40px -14px rgba(14,59,51,.24);
  --container:1200px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",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;
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;background:var(--img-bg);object-fit:cover}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--primary);letter-spacing:.01em;line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font:inherit}
button{cursor:pointer}
:focus-visible{outline:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:var(--primary);
  transition:background .22s ease,box-shadow .22s ease;
}
.site-header.is-scrolled{
  background:var(--surface);
  box-shadow:0 1px 0 var(--line),0 10px 30px -22px rgba(14,59,51,.45);
}
.nav-inner{display:flex;align-items:center;gap:32px;height:64px}
.brand{
  display:flex;align-items:center;gap:10px;flex:none;
  font-size:19px;font-weight:700;letter-spacing:.01em;
  color:var(--inverse);transition:color .22s ease;
}
.site-header.is-scrolled .brand{color:var(--primary)}
.brand-mark{width:10px;height:10px;border-radius:2px;background:var(--accent);flex:none}
.brand-sub{
  font-size:12px;font-weight:400;letter-spacing:.04em;
  color:rgba(244,241,234,.62);
  padding-left:10px;border-left:1px solid rgba(244,241,234,.28);
  transition:color .22s ease,border-color .22s ease;
}
.site-header.is-scrolled .brand-sub{color:var(--text-2);border-color:var(--line)}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{
  position:relative;font-size:15px;padding:6px 0;white-space:nowrap;
  color:rgba(244,241,234,.84);transition:color .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:var(--accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a[aria-current="page"]{color:#fff}
.nav-links a[aria-current="page"]::after{transform:scaleX(1)}
.site-header.is-scrolled .nav-links a{color:var(--text-2)}
.site-header.is-scrolled .nav-links a:hover,
.site-header.is-scrolled .nav-links a[aria-current="page"]{color:var(--primary)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.nav-search{
  display:flex;align-items:center;gap:8px;height:38px;padding:0 14px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.12);
  border:1px solid rgba(244,241,234,.24);
  color:rgba(244,241,234,.8);
  transition:background .22s ease,border-color .22s ease,color .22s ease;
}
.nav-search input{
  width:128px;border:0;background:transparent;color:#fff;font-size:14px;outline:none;
}
.nav-search input::placeholder{color:rgba(244,241,234,.55)}
.site-header.is-scrolled .nav-search{background:#FBF9F5;border-color:var(--line);color:var(--text-2)}
.site-header.is-scrolled .nav-search input{color:var(--text)}
.site-header.is-scrolled .nav-search input::placeholder{color:#9C9488}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:4px;
  width:40px;height:40px;padding:0;border:0;background:transparent;
}
.nav-toggle span{
  display:block;width:20px;height:2px;border-radius:2px;
  background:var(--inverse);transition:background .22s ease;
}
.site-header.is-scrolled .nav-toggle span{background:var(--text)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 24px -14px rgba(233,103,63,.85)}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:0 16px 30px -14px rgba(233,103,63,.7)}
.btn-primary:active{transform:translateY(0)}
.btn-primary:focus-visible{box-shadow:0 0 0 3px rgba(233,103,63,.35)}
.btn-outline{background:transparent;border-color:var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary-100)}
.btn-outline:active{transform:translateY(0)}
.btn-outline:focus-visible{box-shadow:0 0 0 3px rgba(14,59,51,.22)}
.btn-ghost{background:transparent;border-color:rgba(244,241,234,.45);color:var(--inverse)}
.btn-ghost:hover{background:rgba(244,241,234,.14)}
.nav-cta{height:38px;padding:0 20px;font-size:14px}
.link-more{
  color:var(--accent);font-weight:600;font-size:14px;
  text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;
  transition:text-decoration-thickness .2s ease,color .2s ease;
}
.link-more:hover{text-decoration-thickness:2px;color:var(--accent-dark)}

/* ---------- 文章头部 ---------- */
.article-head{
  background:#F1ECE2;
  padding:112px 0 44px;
  border-bottom:1px solid var(--line);
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--text-2);margin-bottom:20px;
}
.breadcrumb a{color:var(--text-2);transition:color .2s ease}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span.sep{color:#B9B1A3}
.breadcrumb .current{color:var(--primary);font-weight:600}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:6px;background:var(--primary-100);color:var(--primary-600);
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.article-head h1{
  font-size:clamp(28px,4vw,44px);line-height:1.28;
  max-width:900px;margin:16px 0 22px;
}
.article-meta{
  display:flex;align-items:center;gap:18px;flex-wrap:wrap;
  font-size:13.5px;color:var(--text-2);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C6BDAE}
.article-meta time,.article-meta b{font-variant-numeric:tabular-nums;color:var(--primary);font-weight:600}

/* ---------- 正文 ---------- */
.article-body{padding:clamp(40px,6vw,72px) 0 clamp(48px,7vw,80px)}
.article-feature{
  max-width:760px;margin:0 auto 40px;
  border-radius:var(--radius-img);overflow:hidden;
  box-shadow:var(--shadow-card);
  aspect-ratio:16/9;
}
.article-feature img{width:100%;height:100%}
.article-content{
  max-width:760px;margin:0 auto;
  font-size:17px;line-height:1.95;color:var(--text);
}
.article-content p{margin:0 0 20px}
.article-content h2{
  position:relative;
  font-size:clamp(22px,2.6vw,28px);
  margin:48px 0 18px;padding-left:18px;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.34em;
  width:8px;height:8px;border-radius:2px;background:var(--accent);
}
.article-content h3{font-size:20px;margin:32px 0 14px}
.article-content ul,.article-content ol{margin:0 0 20px;padding-left:22px}
.article-content ul li{list-style:disc;margin-bottom:12px}
.article-content ol li{list-style:decimal;margin-bottom:12px}
.article-content li::marker{color:var(--accent)}
.article-content blockquote{
  margin:0 0 22px;padding:20px 22px;
  border-left:3px solid var(--primary);
  background:#F1ECE2;border-radius:0 12px 12px 0;
  color:var(--text-2);font-size:16px;
}
.article-content img{border-radius:var(--radius-img);margin:26px 0;width:100%}
.article-content a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:var(--accent-dark)}
.article-content table{
  display:block;width:100%;overflow-x:auto;border-collapse:collapse;
  border:1px solid var(--line);border-radius:12px;margin:0 0 24px;font-size:15px;
}
.article-content th,.article-content td{
  padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap;
}
.article-content th{background:#F1ECE2;color:var(--primary);font-weight:600}
.article-content tr:last-child td{border-bottom:0}
.article-content pre{
  background:var(--primary);color:var(--primary-100);
  padding:20px;border-radius:12px;overflow-x:auto;
  font-size:14px;line-height:1.7;margin:0 0 24px;
}
.article-content code{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.92em;
  background:#EFEAE1;padding:2px 6px;border-radius:6px;
}
.article-content pre code{background:transparent;padding:0;color:inherit}
.article-content hr{border:0;border-top:1px solid var(--line);margin:40px 0}

.empty-state{
  max-width:760px;margin:0 auto;text-align:center;
  padding:56px 24px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
}
.empty-state svg{width:46px;height:46px;stroke:var(--primary-600);fill:none;stroke-width:1.4;margin-bottom:18px}
.empty-state h2{font-size:20px;margin-bottom:10px}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:22px}

/* ---------- 文章尾部 ---------- */
.article-foot{
  max-width:760px;margin:48px auto 0;padding-top:28px;
  border-top:1px solid var(--line);
}
.tag-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:28px}
.tag-row .label{font-size:13px;color:var(--text-2)}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:6px;border:1px solid var(--line);background:var(--surface);
  font-size:13px;color:var(--primary-600);transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.tag:hover{background:var(--accent);border-color:var(--accent);color:#fff}
.adjacent{
  display:grid;grid-template-columns:1fr 1fr;gap:0;
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--surface);overflow:hidden;margin-bottom:24px;
}
.adjacent a{padding:20px 22px;transition:background .2s ease}
.adjacent a:first-child{border-right:1px solid var(--line)}
.adjacent a:hover{background:#FBF9F5}
.adjacent .k{display:block;font-size:12.5px;color:var(--text-2);margin-bottom:6px}
.adjacent .v{display:block;font-size:15.5px;font-weight:600;color:var(--primary);line-height:1.5}
.article-foot .btn{height:44px}

/* ---------- 延伸阅读 ---------- */
.read-more{padding:clamp(48px,7vw,80px) 0;background:#F1ECE2;border-top:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{font-size:clamp(22px,2.6vw,30px)}
.section-head p{color:var(--text-2);font-size:15px;margin-top:8px;max-width:640px}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-1);
  transition:box-shadow .22s ease,transform .22s ease;
}
.card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.card-thumb{aspect-ratio:4/3;overflow:hidden;background:var(--img-bg)}
.card-thumb img{width:100%;height:100%;transition:transform .3s ease}
.card:hover .card-thumb img{transform:scale(1.03)}
.card-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1;gap:10px}
.card-body .badge{align-self:flex-start}
.card-body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:14px;line-height:1.7;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body .link-more{margin-top:auto;font-size:13.5px}

/* ---------- CTA ---------- */
.cta-band{background:var(--primary);color:var(--inverse);padding:clamp(52px,8vw,88px) 0}
.cta-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.cta-band h2{color:var(--inverse);font-size:clamp(24px,3vw,32px);margin-bottom:16px}
.cta-band p.lead{color:rgba(244,241,234,.76);font-size:16px;max-width:560px;margin-bottom:24px}
.cta-points{display:grid;gap:12px;margin-bottom:26px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:rgba(244,241,234,.85)}
.cta-points li::before{
  content:"";flex:none;width:8px;height:8px;margin-top:8px;
  border-radius:2px;background:var(--mint);
}
.cta-form{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(244,241,234,.2);
  border-radius:var(--radius-card);
  padding:26px;display:flex;flex-direction:column;gap:14px;
}
.cta-form h3{color:var(--inverse);font-size:17px;margin-bottom:2px}
.cta-form input{
  height:48px;padding:0 16px;border-radius:var(--radius-input);
  border:1px solid rgba(244,241,234,.26);
  background:rgba(255,255,255,.08);color:var(--inverse);
  font-size:15px;outline:none;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.cta-form input::placeholder{color:rgba(244,241,234,.5)}
.cta-form input:focus{border-color:var(--mint);background:rgba(255,255,255,.12);box-shadow:0 0 0 3px rgba(127,211,190,.22)}
.cta-form input:not(:placeholder-shown):invalid{border-color:var(--accent)}
.form-hint{font-size:12.5px;color:rgba(244,241,234,.55);line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary);color:rgba(244,241,234,.78);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:44px}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  color:var(--inverse);font-size:19px;font-weight:700;margin-bottom:16px;
}
.footer-brand span{width:10px;height:10px;border-radius:2px;background:var(--accent)}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(244,241,234,.7);max-width:320px}
.footer-col h4{color:var(--inverse);font-size:15px;font-weight:600;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(244,241,234,.72);transition:color .2s ease}
.footer-links a:hover{color:var(--mint)}
.footer-contact span{display:block;font-size:14px;margin-bottom:10px;color:rgba(244,241,234,.72)}
.footer-contact .num{color:var(--mint)}
.footer-bottom{
  border-top:1px solid rgba(244,241,234,.16);
  padding:20px 0 26px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(244,241,234,.6);
}
.footer-social{display:flex;gap:12px}
.footer-social a{
  width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(244,241,234,.25);color:rgba(244,241,234,.72);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.footer-social a:hover{border-color:var(--mint);color:var(--mint);background:rgba(127,211,190,.1)}
.footer-social svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;z-index:90;
  background:var(--surface);border:1px solid var(--line);color:var(--primary);
  box-shadow:var(--shadow-card);
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity .24s ease,transform .24s ease,background .2s ease,color .2s ease;
}
.to-top.is-visible{opacity:1;pointer-events:auto;transform:translateY(0)}
.to-top:hover{background:var(--primary);color:var(--inverse);border-color:var(--primary)}
.to-top svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .nav-inner{gap:22px}
  .nav-links{gap:20px}
  .card-grid{gap:20px}
}
@media (max-width:992px){
  .nav-toggle{display:flex}
  .nav-search{display:none}
  .site-header .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:min(86vw,340px);
    flex-direction:column;align-items:stretch;gap:0;
    padding:88px 26px 30px;margin:0;
    background:var(--surface);box-shadow:-24px 0 48px -24px rgba(14,59,51,.4);
    transform:translateX(102%);transition:transform .28s ease;z-index:101;
  }
  body.nav-open .nav-links{transform:translateX(0)}
  .site-header .nav-links a,
  .site-header.is-scrolled .nav-links a{
    width:100%;padding:15px 0;font-size:16px;color:var(--text);
    border-bottom:1px solid var(--line);
  }
  .site-header .nav-links a::after{display:none}
  .site-header .nav-links a[aria-current="page"]{color:var(--accent)}
  body.nav-open::after{
    content:"";position:fixed;inset:0;z-index:99;
    background:rgba(14,59,51,.5);
  }
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .article-head{padding-top:100px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .brand{font-size:17px}
  .brand-sub{display:none}
  .card-grid{grid-template-columns:1fr}
  .adjacent{grid-template-columns:1fr}
  .adjacent a:first-child{border-right:0;border-bottom:1px solid var(--line)}
  .article-content{font-size:16.5px;line-height:1.9}
  .article-content h2{margin-top:40px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:560px){
  .nav-inner{height:56px;gap:14px}
  .nav-cta{height:34px;padding:0 14px;font-size:13px}
  .article-head{padding:92px 0 34px}
  .article-meta{gap:10px;font-size:13px}
  .article-meta .dot{display:none}
  .btn{width:100%}
  .nav-cta,.link-more{width:auto}
  .cta-form{padding:20px}
  .to-top{right:16px;bottom:16px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
  .card:hover{transform:none}
  .btn:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --primary:#0E3B33;
  --primary-600:#15695A;
  --primary-100:#E3EFEA;
  --accent:#E9673F;
  --accent-dark:#D2552E;
  --mint:#7FD3BE;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E4DED3;
  --ph:#EDE7DC;
  --text:#1C1A17;
  --muted:#6B6459;
  --inverse:#F4F1EA;
  --radius-card:16px;
  --radius-img:20px;
  --radius-input:12px;
  --shadow-1:0 1px 2px rgba(20,26,22,.04);
  --shadow-card:0 12px 32px -12px rgba(14,59,51,.18);
  --shadow-hover:0 18px 40px -14px rgba(14,59,51,.24);
  --section-gap:clamp(56px,8vw,96px);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",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:var(--font);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--primary);letter-spacing:.015em;}
h1{font-size:clamp(30px,4.2vw,46px);line-height:1.25;}
h2{font-size:clamp(24px,3vw,32px);line-height:1.35;}
h3{font-size:20px;line-height:1.5;}
p{margin:0 0 20px;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:var(--primary-100);color:var(--primary);}
:focus-visible{outline:3px solid rgba(233,103,63,.35);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--section-gap) 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-head .lead{max-width:640px;}
.section-head p{margin:12px 0 0;color:var(--muted);font-size:15px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;letter-spacing:.08em;color:var(--primary-600);
  text-transform:none;margin-bottom:14px;
}
.eyebrow::before{content:"";width:9px;height:9px;background:var(--accent);display:inline-block;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;border:1px solid transparent;
  padding:13px 26px;font-size:15px;font-weight:600;letter-spacing:.02em;
  cursor:pointer;transition:transform .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
  min-height:48px;
}
.btn:active{transform:translateY(0);}
.btn:disabled{opacity:.55;cursor:not-allowed;filter:saturate(.6);}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 24px -12px rgba(233,103,63,.6);}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-ghost:hover{background:var(--primary-100);transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--primary);}
.btn-light:hover{background:var(--primary-100);transform:translateY(-2px);}
.btn-outline-light{background:transparent;color:var(--inverse);border-color:rgba(244,241,234,.55);}
.btn-outline-light:hover{background:rgba(244,241,234,.12);transform:translateY(-2px);}
.link-more{color:var(--accent);font-weight:600;font-size:15px;border-bottom:1px solid transparent;text-decoration:underline;text-underline-offset:4px;}
.link-more:hover{text-decoration-thickness:2px;}
.badge{
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:6px;font-size:13px;
  background:var(--primary-100);color:var(--primary);font-weight:600;
}
.badge-accent{background:rgba(233,103,63,.12);color:var(--accent-dark);}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  height:64px;
  background:rgba(14,59,51,.94);
  backdrop-filter:blur(10px);
  transition:background-color .22s ease,box-shadow .22s ease,height .22s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.96);
  box-shadow:0 1px 0 var(--line),0 10px 30px -22px rgba(14,59,51,.45);
}
.nav-inner{display:flex;align-items:center;gap:28px;height:64px;}
.brand{
  display:flex;align-items:center;gap:10px;
  font-size:18px;font-weight:700;color:var(--inverse);letter-spacing:.02em;
  white-space:nowrap;transition:color .22s ease;
}
.brand-mark{width:10px;height:10px;background:var(--accent);display:inline-block;border-radius:2px;}
.brand-sub{
  font-size:12px;font-weight:500;color:rgba(244,241,234,.7);
  padding-left:10px;border-left:1px solid rgba(244,241,234,.3);letter-spacing:.02em;
}
.site-header.is-scrolled .brand{color:var(--primary);}
.site-header.is-scrolled .brand-sub{color:var(--muted);border-left-color:var(--line);}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{
  position:relative;padding:8px 14px;font-size:15px;font-weight:500;
  color:rgba(244,241,234,.88);border-radius:8px;transition:color .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-links a:hover{color:#fff;}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a[aria-current="page"]{color:#fff;}
.nav-links a[aria-current="page"]::after{transform:scaleX(1);}
.site-header.is-scrolled .nav-links a{color:var(--muted);}
.site-header.is-scrolled .nav-links a:hover,
.site-header.is-scrolled .nav-links a[aria-current="page"]{color:var(--primary);}
.nav-actions{display:flex;align-items:center;gap:14px;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;
  background:rgba(244,241,234,.12);border:1px solid rgba(244,241,234,.22);
  transition:background-color .2s ease,border-color .2s ease;
}
.nav-search svg{color:rgba(244,241,234,.75);flex:none;}
.nav-search input{
  width:132px;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--inverse);
}
.nav-search input::placeholder{color:rgba(244,241,234,.6);}
.nav-search:focus-within{border-color:var(--accent);background:rgba(244,241,234,.18);}
.site-header.is-scrolled .nav-search{background:var(--bg);border-color:var(--line);}
.site-header.is-scrolled .nav-search svg{color:var(--muted);}
.site-header.is-scrolled .nav-search input{color:var(--text);}
.site-header.is-scrolled .nav-search input::placeholder{color:var(--muted);}
.nav-cta{padding:11px 22px;min-height:44px;font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid rgba(244,241,234,.3);
  background:transparent;border-radius:10px;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--inverse);transition:background-color .2s ease;}
.site-header.is-scrolled .nav-toggle{border-color:var(--line);}
.site-header.is-scrolled .nav-toggle span{background:var(--primary);}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,59,51,.5);
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:86vw;max-width:360px;
  background:var(--surface);z-index:100;padding:24px 22px;
  transform:translateX(100%);transition:transform .26s ease;
  display:flex;flex-direction:column;gap:22px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;}
.drawer-brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--primary);font-size:17px;}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:var(--surface);cursor:pointer;font-size:20px;line-height:1;color:var(--primary);
}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-nav a{padding:12px 14px;border-radius:10px;font-size:15px;color:var(--text);}
.drawer-nav a:hover{background:var(--primary-100);color:var(--primary);}
.drawer-nav a[aria-current="page"]{background:var(--primary-100);color:var(--primary);font-weight:600;}
.drawer-cta{margin-top:auto;display:flex;flex-direction:column;gap:10px;}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(244,241,234,.78);
}
.crumbs a{color:rgba(244,241,234,.78);}
.crumbs a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.crumbs span[aria-current]{color:#fff;}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;
  padding:132px 0 72px;
  background-image:linear-gradient(105deg,rgba(11,46,40,.94) 0%,rgba(14,59,51,.86) 46%,rgba(14,59,51,.58) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  color:var(--inverse);
}
.cat-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:rgba(244,241,234,.15);
}
.cat-hero-grid{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:48px;align-items:center;margin-top:26px;
}
.cat-hero h1{color:#fff;max-width:15em;}
.cat-hero .hero-sub{
  font-size:19px;line-height:1.75;color:rgba(244,241,234,.86);
  max-width:600px;margin:20px 0 30px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;}
.hero-tags .tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;
  border:1px solid rgba(244,241,234,.24);
  background:rgba(244,241,234,.08);
  font-size:13.5px;color:rgba(244,241,234,.9);
}
.hero-tags .tag b{color:var(--mint);font-variant-numeric:tabular-nums;}
.hero-panel{
  background:rgba(244,241,234,.07);
  border:1px solid rgba(244,241,234,.18);
  border-radius:var(--radius-card);
  padding:28px;
  backdrop-filter:blur(6px);
}
.hero-panel h2{color:#fff;font-size:19px;margin-bottom:6px;}
.hero-panel p{color:rgba(244,241,234,.72);font-size:14px;margin-bottom:18px;}
.hero-list{display:flex;flex-direction:column;gap:14px;}
.hero-list li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:rgba(244,241,234,.9);line-height:1.7;}
.hero-list li .dot{
  flex:none;width:8px;height:8px;margin-top:9px;border-radius:2px;background:var(--accent);
}

/* ---------- 能力总览（图文左右） ---------- */
.split{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:48px;align-items:center;}
.split.rev .split-media{order:2;}
.split-body p{color:var(--muted);}
.split-media{
  border-radius:var(--radius-img);overflow:hidden;background:var(--ph);
  aspect-ratio:4/3;box-shadow:var(--shadow-card);
}
.split-media img{width:100%;height:100%;object-fit:cover;}
.feature-list{display:grid;gap:16px;margin:26px 0 0;}
.feature-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:16px 18px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);transition:box-shadow .22s ease,transform .22s ease;
}
.feature-list li:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.feature-list .ico{
  flex:none;width:38px;height:38px;border-radius:10px;
  background:var(--primary-100);color:var(--primary-600);
  display:grid;place-items:center;
}
.feature-list strong{display:block;font-size:15.5px;color:var(--primary);margin-bottom:2px;}
.feature-list span.desc{font-size:14px;color:var(--muted);line-height:1.7;}

/* ---------- 流程时间线 ---------- */
.timeline-wrap{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.timeline{position:relative;max-width:820px;margin:0 auto;}
.tl-item{position:relative;padding:0 0 40px 70px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item:not(:last-child)::before{
  content:"";position:absolute;left:23px;top:52px;bottom:8px;width:2px;background:var(--line);
}
.tl-dot{
  position:absolute;left:0;top:0;width:48px;height:48px;border-radius:50%;
  background:var(--primary);color:#fff;display:grid;place-items:center;
  font-weight:700;font-size:16px;font-variant-numeric:tabular-nums;
  box-shadow:0 10px 24px -14px rgba(14,59,51,.8);
}
.tl-card{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 24px;transition:box-shadow .22s ease,transform .22s ease;
}
.tl-card:hover{box-shadow:var(--shadow-card);transform:translateY(-2px);}
.tl-card h3{margin-bottom:8px;}
.tl-card p{color:var(--muted);font-size:15px;margin:0;}
.tl-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px;}
.tl-meta span{
  font-size:13px;color:var(--primary-600);background:var(--primary-100);
  padding:4px 10px;border-radius:6px;
}

/* ---------- 优势要点 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;
}
.card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:#D8D0C2;}
.card .ico{
  width:44px;height:44px;border-radius:12px;background:var(--primary-100);
  color:var(--primary-600);display:grid;place-items:center;margin-bottom:16px;
}
.card h3{margin-bottom:10px;font-size:18px;}
.card p{color:var(--muted);font-size:14.5px;line-height:1.75;margin:0;}
.card-media{
  border-radius:var(--radius-img);overflow:hidden;background:var(--ph);
  aspect-ratio:4/3;margin-bottom:18px;
}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.card:hover .card-media img{transform:scale(1.03);}

/* ---------- 数据条（深色区块） ---------- */
.dark-band{
  background:var(--primary);color:var(--inverse);
  background-image:linear-gradient(120deg,rgba(14,59,51,.97),rgba(21,105,90,.9)),url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
}
.dark-band h2,.dark-band h3{color:#fff;}
.dark-band .section-head p{color:rgba(244,241,234,.75);}
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px;}
.stat{
  border-top:2px solid rgba(127,211,190,.45);
  padding-top:18px;
}
.stat strong{
  display:block;font-size:clamp(28px,3.4vw,40px);font-weight:700;
  color:var(--mint);font-variant-numeric:tabular-nums;line-height:1.2;letter-spacing:.01em;
}
.stat span{display:block;margin-top:8px;font-size:14px;color:rgba(244,241,234,.8);line-height:1.7;}

/* ---------- 权限与协作（图文卡） ---------- */
.collab{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:center;
}
.collab-figure{border-radius:var(--radius-img);overflow:hidden;background:var(--ph);aspect-ratio:16/11;}
.collab-figure img{width:100%;height:100%;object-fit:cover;}
.check-list{display:grid;gap:12px;margin-top:20px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text);line-height:1.8;}
.check-list svg{flex:none;margin-top:6px;color:var(--primary-600);}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:48px;align-items:start;}
.faq-aside p{color:var(--muted);font-size:15px;}
.faq-aside .contact-box{
  margin-top:22px;padding:20px;border-radius:var(--radius-card);
  background:var(--primary-100);border:1px solid #CFE2DA;
}
.faq-aside .contact-box strong{display:block;color:var(--primary);margin-bottom:6px;}
.faq-aside .contact-box span{font-size:14px;color:var(--muted);}
.accordion{border-top:1px solid var(--line);}
.acc-item{border-bottom:1px solid var(--line);}
.acc-btn{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:20px 4px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--primary);line-height:1.6;
  transition:color .2s ease;
}
.acc-btn:hover{color:var(--accent-dark);}
.acc-btn .chev{
  flex:none;width:22px;height:22px;border-radius:50%;
  border:1px solid var(--line);display:grid;place-items:center;
  transition:transform .26s ease,background-color .26s ease,border-color .26s ease;
}
.acc-item.is-open .acc-btn .chev{transform:rotate(180deg);background:var(--accent);border-color:var(--accent);color:#fff;}
.acc-item.is-open .acc-btn{color:var(--primary);}
.acc-panel{
  max-height:0;overflow:hidden;
  transition:max-height .3s ease;
  border-left:3px solid transparent;
}
.acc-item.is-open .acc-panel{border-left-color:var(--accent);}
.acc-panel-inner{padding:0 4px 22px 18px;color:var(--muted);font-size:15px;line-height:1.85;}

/* ---------- CTA ---------- */
.cta-block{
  background:var(--primary);color:var(--inverse);
  background-image:linear-gradient(115deg,rgba(11,46,40,.96),rgba(21,105,90,.88)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  padding:var(--section-gap) 0;
}
.cta-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:48px;align-items:center;}
.cta-grid h2{color:#fff;margin-bottom:14px;}
.cta-grid p{color:rgba(244,241,234,.82);font-size:15.5px;max-width:520px;}
.cta-points{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}
.cta-points span{
  font-size:13.5px;padding:7px 14px;border-radius:999px;
  border:1px solid rgba(244,241,234,.28);color:rgba(244,241,234,.9);
}
.cta-form{
  background:rgba(244,241,234,.07);
  border:1px solid rgba(244,241,234,.2);
  border-radius:var(--radius-card);padding:28px;
}
.cta-form h3{color:#fff;font-size:18px;margin-bottom:6px;}
.cta-form .hint{color:rgba(244,241,234,.7);font-size:13.5px;margin-bottom:18px;}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:14px;}
.field label{font-size:14px;color:rgba(244,241,234,.85);}
.field input{
  width:100%;padding:13px 16px;border-radius:var(--radius-input);
  border:1px solid rgba(244,241,234,.28);
  background:rgba(247,244,238,.06);color:#fff;
  font-size:15px;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field input::placeholder{color:rgba(244,241,234,.45);}
.field input:hover{border-color:rgba(244,241,234,.45);}
.field input:focus{border-color:var(--mint);background:rgba(247,244,238,.1);box-shadow:0 0 0 3px rgba(127,211,190,.25);}
.field.has-error input{border-color:var(--accent);box-shadow:0 0 0 3px rgba(233,103,63,.25);}
.field .err{font-size:13px;color:#FFB9A3;display:none;}
.field.has-error .err{display:block;}
.form-msg{
  display:none;margin-top:14px;padding:12px 14px;border-radius:10px;font-size:14px;line-height:1.7;
}
.form-msg.success{display:block;background:rgba(127,211,190,.16);border:1px solid rgba(127,211,190,.45);color:#CFF3E8;}
.form-msg.error{display:block;background:rgba(233,103,63,.16);border:1px solid rgba(233,103,63,.5);color:#FFD2C2;}

/* ---------- 返回入口 ---------- */
.back-row{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  padding:26px 0 0;border-top:1px solid var(--line);margin-top:8px;
}
.back-row .text{color:var(--muted);font-size:15px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary);color:var(--inverse);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-brand span{width:10px;height:10px;background:var(--accent);border-radius:2px;display:inline-block;}
.footer-col p{color:rgba(244,241,234,.72);font-size:14px;line-height:1.85;margin:0;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.04em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:rgba(244,241,234,.78);font-size:14px;transition:color .2s ease;}
.footer-links a:hover{color:var(--mint);}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:rgba(244,241,234,.78);}
.footer-contact b{color:var(--mint);font-variant-numeric:tabular-nums;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  border-top:1px solid rgba(244,241,234,.15);padding:20px 0;
  font-size:13.5px;color:rgba(244,241,234,.66);
}
.footer-social{display:flex;gap:12px;}
.footer-social a{
  width:36px;height:36px;border-radius:50%;
  border:1px solid rgba(244,241,234,.25);display:grid;place-items:center;
  transition:border-color .2s ease,background-color .2s ease;
}
.footer-social svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.6;}
.footer-social a:hover{border-color:var(--mint);color:var(--mint);background:rgba(127,211,190,.1);}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .grid-4{grid-template-columns:repeat(3,minmax(0,1fr));}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
}
@media (max-width:1024px){
  .nav-links{gap:0;}
  .nav-links a{padding:8px 10px;font-size:14.5px;}
  .nav-search{display:none;}
  .cat-hero-grid{grid-template-columns:1fr;gap:34px;}
  .split{gap:32px;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .cta-grid{grid-template-columns:1fr;gap:34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .nav-cta{display:none;}
  .site-header{height:56px;}
  .nav-inner{height:56px;}
  .brand{font-size:16.5px;}
  .brand-sub{display:none;}
  .cat-hero{padding:112px 0 56px;}
  .split{grid-template-columns:1fr;gap:26px;}
  .split.rev .split-media{order:0;}
  .collab{grid-template-columns:1fr;gap:26px;}
  .grid-3{grid-template-columns:1fr;}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .hero-sub{font-size:17px;}
  .tl-item{padding-left:60px;}
  .tl-dot{width:42px;height:42px;font-size:15px;}
  .tl-item:not(:last-child)::before{left:20px;top:46px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
}
@media (max-width:560px){
  .grid-4{grid-template-columns:1fr;}
  .stats{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-cta .btn{width:100%;}
  .cta-form{padding:20px;}
  .card{padding:22px;}
}
@media (max-width:380px){
  h1{font-size:26px;}
  .brand{font-size:15.5px;}
  .tl-item{padding-left:52px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
  .card:hover,.btn:hover,.feature-list li:hover,.tl-card:hover{transform:none;}
}

/* roulang page: category3 */
:root{
  --primary:#0E3B33;
  --primary-600:#15695A;
  --primary-100:#E3EFEA;
  --primary-900:#08251F;
  --accent:#E9673F;
  --accent-dark:#D2552E;
  --mint:#7FD3BE;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E4DED3;
  --img:#EDE7DC;
  --text:#1C1A17;
  --text-2:#6B6459;
  --text-inv:#F4F1EA;
  --radius-card:16px;
  --radius-img:20px;
  --radius-input:12px;
  --radius-pill:999px;
  --radius-badge:6px;
  --shadow-1:0 1px 2px rgba(20,26,22,.04);
  --shadow-card:0 12px 32px -12px rgba(14,59,51,.18);
  --shadow-hover:0 18px 40px -14px rgba(14,59,51,.24);
  --section:clamp(56px,8vw,96px);
  --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(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
body.nav-open{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0.01em;line-height:1.35}
p{margin:0 0 20px}
ul,ol{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
@media (max-width:768px){.container{padding:0 16px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:var(--primary);
  border-bottom:1px solid rgba(244,241,234,.10);
  transition:background 220ms ease,box-shadow 220ms ease,border-color 220ms ease;
}
.site-header.is-scrolled{
  background:var(--surface);
  border-bottom:1px solid var(--line);
  box-shadow:0 6px 24px -14px rgba(14,59,51,.28);
}
.nav-inner{
  height:64px;display:flex;align-items:center;gap:28px;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:700;color:var(--text-inv);letter-spacing:.02em;
  transition:color 220ms ease;white-space:nowrap;
}
.brand-mark{width:10px;height:10px;background:var(--accent);border-radius:2px;display:inline-block;flex:0 0 auto}
.brand-sub{
  font-size:12px;font-weight:400;color:rgba(244,241,234,.68);
  border-left:1px solid rgba(244,241,234,.28);padding-left:10px;letter-spacing:.02em;
}
.site-header.is-scrolled .brand{color:var(--primary)}
.site-header.is-scrolled .brand-sub{color:var(--text-2);border-left-color:var(--line)}
.nav-links{display:flex;align-items:center;gap:22px;margin-right:auto}
.nav-links a{
  position:relative;display:inline-block;padding:20px 2px;
  font-size:15px;color:rgba(244,241,234,.84);
  transition:color 200ms ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:12px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform 220ms ease;
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a[aria-current="page"]{color:#fff;font-weight:600}
.nav-links a[aria-current="page"]::after{transform:scaleX(1)}
.site-header.is-scrolled .nav-links a{color:var(--text-2)}
.site-header.is-scrolled .nav-links a:hover,
.site-header.is-scrolled .nav-links a[aria-current="page"]{color:var(--primary)}
.nav-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:rgba(244,241,234,.10);
  border:1px solid rgba(244,241,234,.18);
  border-radius:var(--radius-pill);
  padding:0 14px;height:38px;
  transition:background 200ms ease,border-color 200ms ease;
}
.nav-search svg{color:rgba(244,241,234,.72);flex:0 0 auto}
.nav-search input{
  background:transparent;border:0;outline:0;width:132px;
  font-size:13.5px;color:var(--text-inv);
}
.nav-search input::placeholder{color:rgba(244,241,234,.55)}
.nav-search:focus-within{border-color:var(--mint);background:rgba(244,241,234,.16)}
.site-header.is-scrolled .nav-search{background:#F1EEE7;border-color:var(--line)}
.site-header.is-scrolled .nav-search svg{color:var(--text-2)}
.site-header.is-scrolled .nav-search input{color:var(--text)}
.site-header.is-scrolled .nav-search input::placeholder{color:#9C958A}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 26px;min-height:48px;
  border:1px solid transparent;cursor:pointer;
  transition:background 200ms ease,color 200ms ease,border-color 200ms ease,transform 200ms ease,box-shadow 200ms ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 24px -12px rgba(233,103,63,.7)}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--text-inv);border-color:rgba(244,241,234,.45)}
.btn-ghost:hover{background:rgba(244,241,234,.12);transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-outline:hover{background:var(--primary-100);transform:translateY(-2px)}
.btn-light{background:var(--surface);color:var(--primary);box-shadow:var(--shadow-1)}
.btn-light:hover{background:var(--primary-100);transform:translateY(-2px)}
.btn:focus-visible{outline:3px solid rgba(233,103,63,.35);outline-offset:2px}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;filter:saturate(.6);transform:none}
.nav-cta{padding:11px 20px;min-height:40px;font-size:14px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(244,241,234,.10);border:1px solid rgba(244,241,234,.2);
  cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-inv);border-radius:2px;transition:transform 200ms ease,opacity 200ms ease}
.site-header.is-scrolled .nav-toggle{background:#F1EEE7;border-color:var(--line)}
.site-header.is-scrolled .nav-toggle span{background:var(--primary)}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
body.nav-open::after{
  content:"";position:fixed;inset:0;background:rgba(14,59,51,.5);z-index:70;
}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(244,241,234,.72);
}
.crumb a{color:rgba(244,241,234,.86);transition:color 200ms ease}
.crumb a:hover{color:var(--mint)}
.crumb .sep{color:rgba(244,241,234,.4)}
.crumb .current{color:var(--mint)}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  padding:150px 0 84px;
  background:
    linear-gradient(105deg,rgba(8,37,31,.94) 0%,rgba(14,59,51,.86) 46%,rgba(14,59,51,.62) 100%),
    url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
  color:var(--text-inv);
}
.cat-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:rgba(244,241,234,.14);
}
.cat-hero .hero-grid{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:56px;align-items:center;
  margin-top:26px;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(127,211,190,.14);border:1px solid rgba(127,211,190,.34);
  color:var(--mint);font-size:13px;letter-spacing:.04em;
  padding:6px 14px;border-radius:var(--radius-badge);margin-bottom:20px;
}
.hero-tag i{width:8px;height:8px;background:var(--accent);border-radius:2px;display:inline-block}
.cat-hero h1{
  font-size:clamp(30px,4.2vw,46px);line-height:1.25;color:#fff;margin-bottom:18px;
}
.hero-sub{
  font-size:18px;line-height:1.85;color:rgba(244,241,234,.82);max-width:560px;margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.hero-facts{display:flex;flex-wrap:wrap;gap:26px}
.hero-facts div{display:flex;flex-direction:column;gap:2px}
.hero-facts b{font-size:20px;color:var(--mint)}
.hero-facts span{font-size:13px;color:rgba(244,241,234,.66)}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-img);box-shadow:0 24px 60px -24px rgba(0,0,0,.6);
  background:var(--img);
}
.hero-float{
  position:absolute;left:-18px;bottom:-24px;
  width:min(240px,74%);
  background:var(--surface);color:var(--text);
  border-radius:10px;padding:16px 18px;
  box-shadow:0 20px 44px -18px rgba(0,0,0,.45);
}
.hero-float strong{display:block;font-size:15px;color:var(--primary);margin-bottom:4px}
.hero-float span{font-size:13px;color:var(--text-2);line-height:1.6}

/* ---------- 数据条 ---------- */
.data-strip{
  background:var(--primary);color:var(--text-inv);
  padding:clamp(40px,5vw,60px) 0;
}
.data-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.data-item{
  border-left:2px solid rgba(127,211,190,.42);
  padding-left:20px;
}
.data-item b{
  display:block;font-size:clamp(28px,3.4vw,38px);line-height:1.15;
  color:var(--mint);margin-bottom:8px;letter-spacing:.01em;
}
.data-item strong{display:block;font-size:15px;color:#fff;margin-bottom:4px;font-weight:600}
.data-item span{font-size:13px;color:rgba(244,241,234,.66);line-height:1.65}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section) 0}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{
  font-size:clamp(24px,3vw,32px);color:var(--primary);margin-bottom:14px;
  display:flex;align-items:center;gap:12px;
}
.section-head h2::before{
  content:"";width:9px;height:26px;background:var(--accent);border-radius:2px;flex:0 0 auto;
}
.section-head p{color:var(--text-2);font-size:16px;margin:0;max-width:640px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head.center h2{justify-content:center}

/* ---------- 场景卡片 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.scene-card{
  display:flex;gap:20px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:22px;
  box-shadow:var(--shadow-1);
  transition:box-shadow 220ms ease,transform 220ms ease,border-color 220ms ease;
}
.scene-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:#D6CEC0}
.scene-card .thumb{
  flex:0 0 132px;width:132px;aspect-ratio:4/3;border-radius:14px;overflow:hidden;background:var(--img);
}
.scene-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 240ms ease}
.scene-card:hover .thumb img{transform:scale(1.03)}
.scene-card h3{font-size:19px;color:var(--primary);margin-bottom:10px}
.scene-card p{font-size:14.5px;line-height:1.8;color:var(--text-2);margin-bottom:14px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;
  font-size:12.5px;line-height:1;
  padding:6px 10px;border-radius:var(--radius-badge);
  background:var(--primary-100);color:var(--primary-600);
}
.tag.dark{background:rgba(233,103,63,.12);color:var(--accent-dark)}

/* ---------- 落地要点 ---------- */
.landing-band{background:#F1EDE4}
.landing-grid{
  display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);
  gap:52px;align-items:center;
}
.landing-media img{
  width:100%;aspect-ratio:5/4;object-fit:cover;
  border-radius:var(--radius-img);background:var(--img);box-shadow:var(--shadow-card);
}
.check-list{display:flex;flex-direction:column;gap:18px;margin-top:8px}
.check-item{display:flex;gap:14px;align-items:flex-start}
.check-item .mark{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  background:var(--primary);color:var(--mint);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;
}
.check-item strong{display:block;font-size:16px;color:var(--primary);margin-bottom:4px;font-weight:600}
.check-item p{margin:0;font-size:14.5px;color:var(--text-2);line-height:1.8}

/* ---------- 适配条件 ---------- */
.fit-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:40px;align-items:start}
.step-list{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--line)}
.step{
  display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--line);
}
.step .no{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;
  background:var(--primary-100);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;
}
.step h3{font-size:17px;color:var(--primary);margin-bottom:6px}
.step p{margin:0;font-size:14.5px;color:var(--text-2);line-height:1.8}
.side-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-card);
}
.side-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:14px;background:var(--img);margin-bottom:18px}
.side-card h3{font-size:18px;color:var(--primary);margin-bottom:10px}
.side-card p{font-size:14.5px;color:var(--text-2);line-height:1.8;margin-bottom:18px}
.link-list{display:flex;flex-direction:column;gap:10px;margin-bottom:18px}
.link-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:14.5px;color:var(--primary);padding:10px 14px;
  border:1px solid var(--line);border-radius:10px;
  transition:background 200ms ease,border-color 200ms ease,color 200ms ease;
}
.link-list a:hover{background:var(--primary-100);border-color:#CFE3DB}
.link-list a::after{content:"→";color:var(--accent);font-size:14px}
.text-link{
  color:var(--accent);font-size:14.5px;font-weight:600;
  border-bottom:1px solid rgba(233,103,63,.4);padding-bottom:2px;
  transition:border-color 200ms ease,color 200ms ease;
}
.text-link:hover{color:var(--accent-dark);border-bottom-width:2px}

/* ---------- FAQ ---------- */
.faq-band{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.faq-grid{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:48px;align-items:start}
.faq-aside p{font-size:15px;color:var(--text-2);line-height:1.85}
.faq-aside .aside-box{
  margin-top:22px;background:var(--bg);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:20px;
}
.faq-aside .aside-box strong{display:block;color:var(--primary);font-size:15px;margin-bottom:6px}
.faq-aside .aside-box span{font-size:13.5px;color:var(--text-2);line-height:1.75}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  border:1px solid var(--line);border-radius:14px;background:var(--surface);
  transition:border-color 200ms ease,box-shadow 200ms ease;
}
.faq-item[open]{border-color:#CFE3DB;box-shadow:var(--shadow-1)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:16px;font-weight:600;color:var(--primary);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .chev{
  flex:0 0 auto;width:22px;height:22px;color:var(--accent);
  transition:transform 220ms ease;
}
.faq-item[open] summary .chev{transform:rotate(180deg)}
.faq-body{
  padding:0 20px 20px 20px;border-left:3px solid var(--accent);margin-left:20px;
  padding-left:16px;
}
.faq-body p{margin:0;font-size:14.8px;color:var(--text-2);line-height:1.85}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--primary) 0%,var(--primary-900) 100%);
  color:var(--text-inv);
  padding:clamp(56px,7vw,88px) 0;
}
.cta-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:48px;align-items:center}
.cta-band h2{font-size:clamp(24px,3vw,34px);color:#fff;margin-bottom:16px}
.cta-band p{color:rgba(244,241,234,.76);font-size:15.5px;max-width:560px;margin-bottom:22px}
.cta-meta{display:flex;flex-wrap:wrap;gap:22px}
.cta-meta div{display:flex;flex-direction:column;gap:2px}
.cta-meta b{font-size:19px;color:var(--mint)}
.cta-meta span{font-size:13px;color:rgba(244,241,234,.62)}
.cta-form{
  background:rgba(244,241,234,.06);
  border:1px solid rgba(244,241,234,.16);
  border-radius:var(--radius-card);padding:24px;
}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;color:rgba(244,241,234,.8);margin-bottom:8px}
.field input{
  width:100%;height:48px;padding:0 16px;
  background:rgba(244,241,234,.08);
  border:1px solid rgba(244,241,234,.26);
  border-radius:var(--radius-input);
  color:#fff;font-size:15px;outline:0;
  transition:border-color 200ms ease,box-shadow 200ms ease,background 200ms ease;
}
.field input::placeholder{color:rgba(244,241,234,.45)}
.field input:focus{
  border-color:var(--mint);background:rgba(244,241,234,.12);
  box-shadow:0 0 0 3px rgba(127,211,190,.28);
}
.field.error input{border-color:var(--accent);box-shadow:0 0 0 3px rgba(233,103,63,.25)}
.field-msg{font-size:13px;margin:8px 0 0;color:rgba(244,241,234,.6);line-height:1.6}
.field.error .field-msg{color:#F5A88C}
.form-success{
  display:none;margin-top:14px;padding:12px 14px;border-radius:10px;
  background:rgba(127,211,190,.16);border:1px solid rgba(127,211,190,.42);
  color:var(--mint);font-size:13.5px;line-height:1.7;
}
.form-success.show{display:block}
.cta-form .btn{width:100%}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary);color:var(--text-inv);padding:clamp(48px,6vw,72px) 0 0}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:44px}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  font-size:18px;font-weight:700;color:#fff;margin-bottom:14px;
}
.footer-brand span{width:10px;height:10px;background:var(--accent);border-radius:2px;display:inline-block}
.footer-col p{font-size:14px;color:rgba(244,241,234,.66);line-height:1.85;margin:0;max-width:300px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:rgba(244,241,234,.72);transition:color 200ms ease}
.footer-links a:hover{color:var(--mint)}
.footer-contact{display:flex;flex-direction:column;gap:11px;font-size:14px;color:rgba(244,241,234,.72)}
.footer-contact b{color:var(--mint)}
.footer-bottom{
  border-top:1px solid rgba(244,241,234,.14);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:14px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(244,241,234,.55);
}
.footer-social{display:flex;gap:12px}
.footer-social a{
  width:34px;height:34px;border-radius:50%;
  border:1px solid rgba(244,241,234,.22);
  display:flex;align-items:center;justify-content:center;
  color:rgba(244,241,234,.75);
  transition:color 200ms ease,border-color 200ms ease,background 200ms ease;
}
.footer-social a:hover{color:var(--mint);border-color:var(--mint);background:rgba(127,211,190,.10)}
.footer-social svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .nav-links{gap:18px}
  .nav-search input{width:110px}
}
@media (max-width:992px){
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:86vw;max-width:360px;
    background:var(--primary);z-index:75;
    flex-direction:column;align-items:stretch;gap:0;
    padding:84px 26px 32px;margin:0;
    transform:translateX(100%);
    transition:transform 240ms ease;
    box-shadow:-24px 0 60px rgba(0,0,0,.35);
    overflow-y:auto;
  }
  body.nav-open .nav-links{transform:translateX(0)}
  .nav-links a{
    padding:15px 0;font-size:16px;color:rgba(244,241,234,.9);
    border-bottom:1px solid rgba(244,241,234,.12);
  }
  .nav-links a::after{display:none}
  .nav-links a[aria-current="page"]{color:var(--mint)}
  .site-header.is-scrolled .nav-links a{color:rgba(244,241,234,.9)}
  .site-header.is-scrolled .nav-links a[aria-current="page"]{color:var(--mint)}
  .nav-search{display:none}
  .nav-toggle{display:flex}
  .cat-hero{padding:130px 0 72px}
  .cat-hero .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-visual{order:2}
  .hero-float{left:12px;bottom:-18px}
  .data-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
  .scene-grid{grid-template-columns:1fr}
  .landing-grid{grid-template-columns:1fr;gap:36px}
  .fit-grid{grid-template-columns:1fr;gap:32px}
  .faq-grid{grid-template-columns:1fr;gap:32px}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .brand-sub{display:none}
  .nav-inner{height:56px;gap:14px}
  .cat-hero{padding:110px 0 60px}
  .hero-sub{font-size:16.5px}
  .hero-facts{gap:20px}
  .scene-card{flex-direction:column;gap:16px;padding:18px}
  .scene-card .thumb{flex:none;width:100%;aspect-ratio:16/9}
  .data-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .data-item b{font-size:26px}
  .section-head{margin-bottom:32px}
  .btn{min-height:48px}
}
@media (max-width:560px){
  .data-grid{grid-template-columns:1fr;gap:20px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-float{position:static;width:100%;margin-top:14px;border-radius:12px}
  .faq-item summary{font-size:15px;padding:16px}
}
@media (max-width:380px){
  .container{padding:0 14px}
  .cat-hero h1{font-size:26px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category4 */
:root{
  --primary:#0E3B33;
  --primary-700:#0B2E28;
  --primary-600:#15695A;
  --primary-100:#E3EFEA;
  --accent:#E9673F;
  --accent-dark:#D2552E;
  --mint:#7FD3BE;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E4DED3;
  --img-ph:#EDE7DC;
  --text:#1C1A17;
  --text-2:#6B6459;
  --text-inv:#F4F1EA;
  --radius-card:16px;
  --radius-img:20px;
  --radius-input:12px;
  --radius-pill:999px;
  --radius-badge:6px;
  --shadow-1:0 1px 2px rgba(20,26,22,.04);
  --shadow-card:0 12px 32px -12px rgba(14,59,51,.18);
  --shadow-hover:0 18px 40px -14px rgba(14,59,51,.24);
  --container:1200px;
  --gap:24px;
  --section-y:clamp(56px,8vw,96px);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",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;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;background:var(--img-ph);}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;color:var(--primary);}
h1{font-size:clamp(30px,4.2vw,46px);line-height:1.25;}
h2{font-size:clamp(24px,3vw,32px);line-height:1.35;}
h3{font-size:20px;line-height:1.5;}
p{margin:0 0 20px;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(233,103,63,.35);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;letter-spacing:.01em;}
.section{padding:var(--section-y) 0;}
.section-head{max-width:720px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;line-height:1.6;color:var(--primary-600);
  background:var(--primary-100);
  border-radius:var(--radius-badge);
  padding:5px 12px;margin-bottom:18px;
}
.eyebrow::before{content:"";width:8px;height:8px;background:var(--accent);border-radius:2px;}
.section-head p{color:var(--text-2);font-size:16px;line-height:1.9;margin:14px 0 0;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:13px 26px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;transition:all .22s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 24px -12px rgba(233,103,63,.7);}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-2px);color:#fff;}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-secondary{border-color:var(--primary);color:var(--primary);background:transparent;}
.btn-secondary:hover{background:var(--primary-100);transform:translateY(-2px);}
.btn-secondary:active{transform:translateY(0);}
.btn-ghost{border-color:rgba(244,241,234,.4);color:var(--text-inv);background:transparent;}
.btn-ghost:hover{background:rgba(244,241,234,.12);border-color:var(--text-inv);transform:translateY(-2px);}
.btn-link{color:var(--accent);font-weight:600;padding:4px 0;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;}
.btn-link:hover{text-decoration-thickness:2px;color:var(--accent-dark);}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

/* 徽章 */
.badge{
  display:inline-block;font-size:13px;line-height:1.6;
  padding:4px 10px;border-radius:var(--radius-badge);
  background:var(--primary-100);color:var(--primary-600);font-weight:600;
}
.badge-accent{background:rgba(233,103,63,.12);color:var(--accent-dark);}
.badge-mint{background:rgba(127,211,190,.22);color:#12695A;}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:transparent;
  transition:background-color .24s ease,box-shadow .24s ease,border-color .24s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:var(--surface);
  border-bottom:1px solid var(--line);
  box-shadow:0 6px 20px -14px rgba(14,59,51,.35);
}
.nav-inner{display:flex;align-items:center;gap:28px;height:64px;}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:700;color:var(--text-inv);letter-spacing:.01em;flex-shrink:0;
}
.brand-mark{width:10px;height:10px;background:var(--accent);border-radius:2px;display:inline-block;}
.brand-sub{
  font-size:12px;font-weight:500;color:rgba(244,241,234,.66);
  padding-left:10px;border-left:1px solid rgba(244,241,234,.28);line-height:1;
}
.is-scrolled .brand{color:var(--primary);}
.is-scrolled .brand-sub{color:var(--text-2);border-left-color:var(--line);}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-links a{
  position:relative;padding:8px 14px;font-size:15px;font-weight:500;
  color:rgba(244,241,234,.86);border-radius:10px;
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-links a:hover{color:#fff;}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a[aria-current="page"]{color:#fff;}
.nav-links a[aria-current="page"]::after{transform:scaleX(1);}
.is-scrolled .nav-links a{color:var(--text-2);}
.is-scrolled .nav-links a:hover,.is-scrolled .nav-links a[aria-current="page"]{color:var(--primary);}
.nav-actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:rgba(244,241,234,.12);
  border:1px solid rgba(244,241,234,.24);
  border-radius:var(--radius-pill);
  padding:8px 14px;min-width:180px;
  transition:border-color .2s ease,background-color .2s ease;
}
.nav-search input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:14px;color:var(--text-inv);
}
.nav-search input::placeholder{color:rgba(244,241,234,.55);}
.nav-search svg{flex-shrink:0;color:rgba(244,241,234,.7);}
.nav-search:focus-within{border-color:var(--accent);background:rgba(244,241,234,.18);}
.is-scrolled .nav-search{background:var(--bg);border-color:var(--line);}
.is-scrolled .nav-search input{color:var(--text);}
.is-scrolled .nav-search input::placeholder{color:var(--text-2);}
.is-scrolled .nav-search svg{color:var(--text-2);}
.nav-cta{min-height:42px;padding:10px 22px;font-size:14px;}
.nav-toggle{display:none;width:44px;height:44px;flex-direction:column;justify-content:center;align-items:center;gap:5px;border-radius:10px;border:1px solid rgba(244,241,234,.3);}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-inv);border-radius:2px;transition:background-color .2s ease;}
.is-scrolled .nav-toggle{border-color:var(--line);}
.is-scrolled .nav-toggle span{background:var(--primary);}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,59,51,.5);z-index:80;
  opacity:0;pointer-events:none;transition:opacity .24s ease;
}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:86vw;max-width:360px;z-index:90;
  background:var(--surface);padding:24px 22px;
  transform:translateX(102%);transition:transform .28s ease;
  display:flex;flex-direction:column;gap:22px;overflow-y:auto;
  box-shadow:-20px 0 48px -24px rgba(14,59,51,.5);
}
.drawer.is-open{transform:translateX(0);}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.drawer-close{align-self:flex-end;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;font-size:22px;line-height:1;color:var(--primary);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{padding:13px 12px;border-radius:12px;font-size:16px;font-weight:600;color:var(--text);}
.drawer-nav a:hover{background:var(--primary-100);color:var(--primary);}
.drawer-nav a[aria-current="page"]{background:var(--primary-100);color:var(--primary);}
.drawer .btn{width:100%;}

/* Hero */
.cat-hero{
  position:relative;margin-top:-64px;padding:calc(64px + clamp(48px,7vw,88px)) 0 clamp(56px,7vw,88px);
  background:
    linear-gradient(120deg,rgba(11,46,40,.94) 8%,rgba(14,59,51,.78) 52%,rgba(14,59,51,.55) 100%),
    url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  color:var(--text-inv);
  overflow:hidden;
}
.cat-hero::after{
  content:"";position:absolute;right:-80px;bottom:-120px;width:340px;height:340px;
  border:1px solid rgba(127,211,190,.22);border-radius:50%;
}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(244,241,234,.7);margin-bottom:20px;}
.crumbs a{color:rgba(244,241,234,.7);}
.crumbs a:hover{color:var(--mint);}
.crumbs span[aria-current]{color:var(--mint);}
.hero-split{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gap);align-items:center;position:relative;z-index:2;}
.hero-copy{grid-column:span 6;}
.hero-visual{grid-column:span 6;position:relative;}
.cat-hero h1{color:#fff;margin-bottom:16px;}
.cat-hero .eyebrow{background:rgba(127,211,190,.16);color:var(--mint);}
.hero-sub{font-size:18px;line-height:1.8;color:rgba(244,241,234,.82);max-width:520px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:32px;}
.hero-stats li{display:flex;flex-direction:column;gap:2px;}
.hero-stats strong{font-size:26px;font-weight:700;color:#fff;line-height:1.2;}
.hero-stats span{font-size:13px;color:rgba(244,241,234,.66);}
.hero-photo{margin:0;border-radius:var(--radius-img);overflow:hidden;box-shadow:var(--shadow-hover);}
.hero-photo img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.hero-float{
  position:absolute;left:-18px;bottom:22px;
  display:flex;align-items:center;gap:12px;
  background:var(--surface);border-radius:12px;padding:14px 18px;
  box-shadow:0 18px 40px -16px rgba(14,59,51,.45);
}
.hero-float .dot{width:10px;height:10px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px rgba(127,211,190,.25);flex-shrink:0;}
.hero-float b{display:block;font-size:14px;color:var(--primary);line-height:1.4;}
.hero-float em{font-style:normal;font-size:12px;color:var(--text-2);line-height:1.4;}

/* 卡片墙 */
.mosaic{display:grid;grid-template-columns:repeat(6,1fr);gap:var(--gap);}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-1);
  transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;
}
.card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:#D9D1C4;}
.card h3{margin-bottom:10px;}
.card p{color:var(--text-2);font-size:15px;line-height:1.85;margin:0;}
.card-icon{
  width:44px;height:44px;border-radius:12px;background:var(--primary-100);
  display:flex;align-items:center;justify-content:center;color:var(--primary);margin-bottom:18px;
}
.card-icon svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.m-a{grid-column:span 3;grid-row:span 2;padding:0;overflow:hidden;}
.m-a .m-a-media{overflow:hidden;border-radius:var(--radius-card) var(--radius-card) 0 0;}
.m-a img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease;}
.m-a:hover img{transform:scale(1.03);}
.m-a .m-a-body{padding:26px 28px 28px;}
.m-b{grid-column:span 3;}
.m-c{grid-column:span 3;}
.m-d{grid-column:span 2;}
.m-e{grid-column:span 4;}
.card-list{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.card-list li{position:relative;padding-left:18px;font-size:14px;color:var(--text-2);line-height:1.7;}
.card-list li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;background:var(--accent);}

/* 对比条 */
.compare-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);}
.compare-row{
  display:grid;grid-template-columns:1.1fr 1fr 1.6fr 1fr;
  gap:16px;align-items:center;padding:20px 28px;border-bottom:1px solid var(--line);
  font-size:15px;color:var(--text-2);transition:background-color .2s ease;
}
.compare-row:last-child{border-bottom:0;}
.compare-row:hover{background:#FBF9F5;}
.compare-row.head{
  background:var(--primary);color:rgba(244,241,234,.78);
  font-size:14px;font-weight:600;letter-spacing:.02em;
}
.compare-row.head:hover{background:var(--primary);}
.compare-row strong{color:var(--primary);font-size:16px;}
.compare-row.head strong{color:#fff;}
.compare-row .num{color:var(--accent-dark);font-weight:700;}

/* 数据条 */
.stats-strip{
  background:var(--primary);border-radius:var(--radius-card);color:var(--text-inv);
  padding:clamp(32px,4vw,48px);display:grid;grid-template-columns:repeat(4,1fr);gap:28px;
}
.stat-item{border-left:2px solid rgba(127,211,190,.4);padding-left:18px;}
.stat-item b{display:block;font-size:clamp(28px,3.4vw,38px);line-height:1.2;color:#fff;font-weight:700;}
.stat-item span{display:block;font-size:14px;color:rgba(244,241,234,.72);margin-top:6px;}

/* 清单 */
.scope-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap);}
.scope-item{
  display:flex;gap:16px;padding:22px;border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--surface);box-shadow:var(--shadow-1);transition:box-shadow .22s ease,transform .22s ease;
}
.scope-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.scope-item .idx{
  flex-shrink:0;width:34px;height:34px;border-radius:10px;background:var(--primary-100);
  color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;
}
.scope-item h3{font-size:17px;margin-bottom:6px;}
.scope-item p{font-size:14px;color:var(--text-2);line-height:1.8;margin:0;}

/* FAQ */
.faq-layout{display:grid;grid-template-columns:1fr 1.4fr;gap:56px;align-items:start;}
.faq-layout .section-head{margin-bottom:24px;}
.faq-contact{
  margin-top:28px;padding:24px;border-radius:var(--radius-card);
  background:var(--primary-100);border:1px solid #CFE3DA;
}
.faq-contact h3{font-size:17px;margin-bottom:8px;}
.faq-contact p{font-size:14px;color:var(--text-2);margin-bottom:16px;line-height:1.8;}
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:#D9D1C4;box-shadow:var(--shadow-1);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--primary);
  border-left:3px solid transparent;transition:border-color .2s ease,background-color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:#FBF9F5;}
.faq-item[open] summary{border-left-color:var(--accent);}
.faq-item .chev{flex-shrink:0;transition:transform .24s ease;color:var(--text-2);}
.faq-item[open] .chev{transform:rotate(180deg);color:var(--accent);}
.faq-body{padding:0 24px 22px 24px;font-size:15px;color:var(--text-2);line-height:1.9;}

/* 保障条 */
.assure{background:#F1EDE4;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.assure-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;}
.assure-item svg{width:26px;height:26px;fill:none;stroke:var(--primary-600);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;margin-bottom:14px;}
.assure-item h3{font-size:16px;margin-bottom:6px;}
.assure-item p{font-size:14px;color:var(--text-2);line-height:1.75;margin:0;}

/* CTA */
.cta-block{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-700) 100%);
  border-radius:var(--radius-card);color:var(--text-inv);
  padding:clamp(36px,5vw,64px);
  display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center;
}
.cta-block h2{color:#fff;margin-bottom:14px;}
.cta-block p{color:rgba(244,241,234,.78);font-size:16px;line-height:1.9;margin-bottom:0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.cta-form{background:rgba(244,241,234,.08);border:1px solid rgba(244,241,234,.18);border-radius:var(--radius-card);padding:28px;}
.cta-form h3{color:#fff;font-size:17px;margin-bottom:18px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;color:rgba(244,241,234,.72);margin-bottom:7px;}
.field input{
  width:100%;min-height:48px;padding:12px 16px;border-radius:var(--radius-input);
  border:1px solid rgba(244,241,234,.28);background:rgba(255,255,255,.06);
  color:#fff;font-size:15px;outline:none;transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:rgba(244,241,234,.45);}
.field input:focus{border-color:var(--mint);box-shadow:0 0 0 3px rgba(127,211,190,.22);}
.field.is-error input{border-color:var(--accent);box-shadow:0 0 0 3px rgba(233,103,63,.22);}
.field .msg{display:none;font-size:13px;color:#FFBBA5;margin-top:6px;}
.field.is-error .msg{display:block;}
.cta-form .btn{width:100%;margin-top:6px;}
.form-note{
  display:none;margin-top:14px;font-size:14px;border-radius:10px;padding:12px 14px;line-height:1.7;
}
.form-note.is-success{display:block;background:rgba(127,211,190,.18);color:#CFF3E8;border:1px solid rgba(127,211,190,.4);}
.form-note.is-error{display:block;background:rgba(233,103,63,.16);color:#FFC9B5;border:1px solid rgba(233,103,63,.42);}

/* 页脚 */
.site-footer{background:var(--primary);color:rgba(244,241,234,.78);padding:clamp(48px,6vw,72px) 0 24px;margin-top:var(--section-y);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:40px;border-bottom:1px solid rgba(244,241,234,.14);}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-brand span{width:10px;height:10px;background:var(--accent);border-radius:2px;display:inline-block;}
.footer-col p{font-size:14px;line-height:1.9;color:rgba(244,241,234,.66);margin:0;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:rgba(244,241,234,.72);}
.footer-links a:hover{color:var(--mint);}
.footer-contact{display:flex;flex-direction:column;gap:11px;font-size:14px;color:rgba(244,241,234,.72);}
.footer-contact b{color:var(--mint);font-weight:600;}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:18px;padding-top:22px;font-size:13px;color:rgba(244,241,234,.6);flex-wrap:wrap;}
.footer-social{display:flex;gap:12px;}
.footer-social a{
  width:38px;height:38px;border-radius:50%;border:1px solid rgba(244,241,234,.22);
  display:flex;align-items:center;justify-content:center;transition:border-color .2s ease,background-color .2s ease;
}
.footer-social a:hover{border-color:var(--mint);background:rgba(127,211,190,.14);}
.footer-social svg{width:18px;height:18px;fill:none;stroke:rgba(244,241,234,.8);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}

/* 响应式 */
@media (max-width:1280px){
  .nav-links a{padding:8px 10px;font-size:14px;}
  .nav-search{min-width:150px;}
}
@media (max-width:992px){
  .nav-links{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:flex;}
  .hero-copy,.hero-visual{grid-column:span 6;}
  .hero-split{grid-template-columns:repeat(6,1fr);}
  .hero-copy{grid-column:span 6;}
  .hero-visual{grid-column:span 6;}
  .mosaic{grid-template-columns:repeat(2,1fr);}
  .m-a{grid-column:span 2;grid-row:auto;}
  .m-b,.m-c{grid-column:span 1;}
  .m-d,.m-e{grid-column:span 1;}
  .stats-strip{grid-template-columns:repeat(2,1fr);gap:24px;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .assure-grid{grid-template-columns:repeat(2,1fr);}
  .cta-block{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .compare-row{grid-template-columns:1fr 1fr;gap:6px 16px;padding:18px 20px;}
  .compare-row.head{display:none;}
  .compare-row > *:nth-child(3){grid-column:span 2;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .nav-inner{height:56px;gap:12px;}
  .brand-sub{display:none;}
  .hero-split{gap:28px;}
  .cat-hero{padding-top:calc(56px + 40px);}
  .scope-grid{grid-template-columns:1fr;}
  .hero-float{left:0;bottom:12px;}
  .mosaic{gap:16px;}
}
@media (max-width:560px){
  .mosaic{grid-template-columns:1fr;}
  .mosaic > *{grid-column:span 1 !important;}
  .stats-strip{grid-template-columns:1fr;}
  .assure-grid{grid-template-columns:1fr;}
  .hero-stats{gap:22px;}
  .hero-stats strong{font-size:22px;}
  .btn{width:100%;}
  .hero-actions .btn,.cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .compare-row{grid-template-columns:1fr;}
  .compare-row > *:nth-child(3){grid-column:span 1;}
}
@media (max-width:380px){
  body{font-size:15px;}
  .card{padding:22px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  .card:hover,.btn:hover,.scope-item:hover{transform:none;}
}