/* roulang page: index */
:root{
  --brand:#0E4D3C;
  --brand-hover:#14654F;
  --brand-soft:rgba(14,77,60,.08);
  --lime:#C8F169;
  --orange:#FF6A2B;
  --dark:#0C1A16;
  --bg:#F6F7F3;
  --card:#FFFFFF;
  --line:#E4E8E1;
  --text:#161C18;
  --muted:#5A6560;
  --r-card:16px;
  --r-img:14px;
  --r-btn:12px;
  --sh-1:0 1px 2px rgba(16,24,20,.06);
  --sh-2:0 12px 28px -12px rgba(16,24,20,.18);
  --sec:96px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
  font-size:16.5px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--orange)}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-.01em;font-weight:700;color:var(--text)}
h1{font-size:clamp(30px,4.2vw,52px);line-height:1.2;font-weight:800}
h2{font-size:clamp(24px,2.8vw,34px)}
h3{font-size:21px;font-weight:600}
h4{font-size:17.5px;font-weight:600}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.num{font-variant-numeric:tabular-nums}

.container-x{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.scrolled{box-shadow:0 6px 20px -14px rgba(16,24,20,.28)}
.header-inner{
  display:flex;
  align-items:center;
  gap:22px;
  height:72px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:17px;
  color:var(--brand);
  white-space:nowrap;
  letter-spacing:-.01em;
}
.brand:hover{color:var(--brand)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--brand);color:var(--lime);
  display:grid;place-items:center;font-size:15px;flex:none;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:6px;
}
.main-nav a{
  padding:9px 13px;
  font-size:15px;
  color:var(--text);
  border-radius:10px;
  border-bottom:2px solid transparent;
  transition:color .18s ease,background .18s ease,border-color .18s ease;
}
.main-nav a:hover{color:var(--brand);background:var(--brand-soft)}
.main-nav a.active{
  color:var(--brand);
  font-weight:600;
  border-bottom-color:var(--lime);
}
.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.search-box{
  display:flex;
  align-items:center;
  gap:9px;
  height:42px;
  padding:0 15px;
  border-radius:999px;
  background:#F2F4EF;
  border:1px solid transparent;
  transition:border-color .18s ease,background .18s ease;
}
.search-box:focus-within{border-color:var(--brand);background:#fff}
.search-box i{color:var(--muted);font-size:14px}
.search-box input{
  border:0;outline:none;background:transparent;
  font-size:14px;width:136px;color:var(--text);
}
.search-box input::placeholder{color:#98A29C}
.nav-toggle{
  display:none;
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--brand);
  font-size:17px;cursor:pointer;
}

/* ---------- 按钮 ---------- */
.btn-main,.btn-ghost,.btn-accent{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  font-size:15.5px;
  font-weight:600;
  border-radius:999px;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-main{background:var(--brand);color:#fff;box-shadow:var(--sh-1)}
.btn-main:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-accent{background:var(--orange);color:#fff}
.btn-accent:hover{background:#F45E20;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand);transform:translateY(-1px)}
.btn-main:focus-visible,.btn-ghost:focus-visible,.btn-accent:focus-visible,
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--lime);
  outline-offset:2px;
}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-weight:600;font-size:15px;color:var(--brand);
}
.link-arrow i{transition:transform .18s ease}
.link-arrow:hover{color:var(--orange);text-decoration:underline;text-underline-offset:3px}
.link-arrow:hover i{transform:translateX(3px)}

/* ---------- 徽章 ---------- */
.badge-soft{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;
  font-size:13px;font-weight:600;
  background:var(--brand-soft);color:var(--brand);
}
.badge-lime{background:rgba(200,241,105,.35);color:#3E5C12}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  padding:76px 0 72px;
  background:linear-gradient(180deg,#FBFCF8 0%,#F6F7F3 100%);
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";
  position:absolute;
  right:-160px;top:-120px;
  width:520px;height:520px;
  border-radius:50%;
  border:2px solid rgba(200,241,105,.55);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:52px;
  align-items:center;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:13.5px;color:var(--brand);font-weight:600;
  margin-bottom:20px;
}
.hero h1{margin-bottom:18px}
.hero-sub{
  font-size:17.5px;
  color:var(--muted);
  max-width:560px;
  margin-bottom:26px;
}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px}
.hero-metrics{
  display:flex;
  gap:38px;
  flex-wrap:wrap;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.hero-metrics .m-num{
  font-size:26px;font-weight:800;color:var(--brand);
  font-variant-numeric:tabular-nums;line-height:1.1;
}
.hero-metrics .m-txt{font-size:13.5px;color:var(--muted);margin-top:4px}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;
  border-radius:var(--r-img);
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
  object-fit:cover;
  aspect-ratio:4/3;
}
.hero-float{
  position:absolute;
  left:-22px;bottom:-22px;
  background:var(--dark);
  color:#fff;
  border-radius:14px;
  padding:16px 20px;
  min-width:190px;
  box-shadow:var(--sh-2);
}
.hero-float .f-num{
  font-size:24px;font-weight:800;color:var(--lime);
  font-variant-numeric:tabular-nums;line-height:1.1;
}
.hero-float .f-txt{font-size:13px;color:rgba(255,255,255,.72);margin-top:4px}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec) 0}
.section-white{background:#fff}
.section-head{max-width:720px;margin-bottom:46px}
.section-head h2{margin-bottom:14px}
.section-head p{color:var(--muted);font-size:16.5px}
.eyebrow{
  display:inline-block;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--brand);
  padding:5px 12px;border-radius:999px;
  background:var(--brand-soft);
  margin-bottom:16px;
}

/* ---------- 服务区（非对称） ---------- */
.svc-grid{
  display:grid;
  grid-template-columns:1.25fr 1fr 1fr;
  grid-auto-rows:minmax(0,auto);
  gap:24px;
}
.svc-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--sh-1);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  display:flex;flex-direction:column;gap:12px;
}
.svc-card:hover{transform:translateY(-2px);border-color:var(--brand);box-shadow:var(--sh-2)}
.svc-main{grid-row:span 2;padding:0;overflow:hidden;gap:0}
.svc-main img{width:100%;height:230px;object-fit:cover}
.svc-main-body{padding:28px;display:flex;flex-direction:column;gap:12px;flex:1}
.svc-icon{
  width:44px;height:44px;border-radius:12px;
  background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-size:18px;flex:none;
}
.svc-card p{font-size:15px;color:var(--muted);margin:0}
.svc-card h3{font-size:19px}

/* ---------- 数据区 ---------- */
.data-band{
  background:var(--dark);
  color:#fff;
  padding:calc(var(--sec) + 16px) 0;
}
.data-band h2{color:#fff}
.data-band .section-head p{color:rgba(255,255,255,.68)}
.data-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  border-top:1px solid rgba(255,255,255,.12);
  margin-top:8px;
}
.data-item{
  padding:34px 26px;
  border-right:1px solid rgba(255,255,255,.12);
}
.data-item:last-child{border-right:0}
.data-num{
  font-size:clamp(30px,3.4vw,44px);
  font-weight:800;
  color:var(--lime);
  font-variant-numeric:tabular-nums;
  line-height:1.05;
  letter-spacing:-.02em;
}
.data-num span{font-size:16px;font-weight:600;margin-left:4px;color:rgba(255,255,255,.75)}
.data-txt{font-size:14.5px;color:rgba(255,255,255,.72);margin-top:10px}

/* ---------- 案例区 ---------- */
.case-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:26px;
}
.case-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  display:flex;flex-direction:column;
}
.case-card:hover{transform:translateY(-2px);border-color:var(--brand);box-shadow:var(--sh-2)}
.case-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.case-body{padding:26px;display:flex;flex-direction:column;gap:12px;flex:1}
.case-body h3{font-size:20px}
.case-body p{color:var(--muted);font-size:15px;margin:0}
.case-body .link-arrow{margin-top:auto}

/* ---------- 方案区 zigzag ---------- */
.zigzag-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:54px;
  align-items:center;
  padding:36px 0;
}
.zigzag-row.reverse .zz-media{order:2}
.zz-media img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  border-radius:var(--r-img);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.zz-index{
  font-size:14px;font-weight:700;color:var(--brand);
  letter-spacing:.1em;margin-bottom:12px;
}
.zz-body h3{margin-bottom:14px}
.zz-list{margin:0 0 18px}
.zz-list li{
  position:relative;
  padding-left:24px;
  margin-bottom:10px;
  font-size:15.5px;
  color:var(--muted);
}
.zz-list li::before{
  content:"";
  position:absolute;left:6px;top:11px;
  width:8px;height:8px;border-radius:50%;
  background:var(--lime);
}
.zigzag-alt{background:#fff}

/* ---------- 资讯列表 ---------- */
.news-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;flex-wrap:wrap;margin-bottom:42px;
}
.news-head .section-head{margin-bottom:0}
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:26px;
}
.news-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  display:flex;flex-direction:column;
  height:100%;
}
.news-card:hover{transform:translateY(-2px);border-color:var(--brand);box-shadow:var(--sh-2)}
.news-card a{display:flex;flex-direction:column;height:100%;color:inherit;text-decoration:none}
.news-card a:hover{color:inherit}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-title{
  font-size:18px;font-weight:600;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-desc{
  font-size:14.5px;color:var(--muted);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
  display:flex;align-items:center;gap:10px;
}
.news-meta i{font-size:12px}
.empty-state{
  grid-column:1/-1;
  background:#fff;
  border:1px dashed var(--line);
  border-radius:var(--r-card);
  padding:56px 24px;
  text-align:center;
}
.empty-state .es-icon{
  width:56px;height:56px;border-radius:50%;
  border:2px solid var(--line);
  display:grid;place-items:center;
  margin:0 auto 18px;
  color:var(--brand);font-size:20px;
}
.empty-state p{color:var(--muted);margin-bottom:20px}

/* ---------- FAQ ---------- */
.faq-layout{
  display:grid;
  grid-template-columns:340px 1fr;
  gap:56px;
  align-items:start;
}
.faq-aside p{color:var(--muted);font-size:15.5px}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.open{border-color:var(--brand);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;
  background:transparent;border:0;
  font-size:17.5px;font-weight:600;color:var(--text);
  text-align:left;cursor:pointer;
  border-left:4px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.faq-q i{color:var(--muted);font-size:14px;transition:transform .22s ease,color .18s ease}
.faq-item.open .faq-q{color:var(--brand);border-left-color:var(--lime)}
.faq-item.open .faq-q i{transform:rotate(180deg);color:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-a-inner{
  padding:0 24px 22px 24px;
  color:var(--muted);
  font-size:15.5px;
  line-height:1.8;
}

/* ---------- 联系 ---------- */
.contact-layout{
  display:grid;
  grid-template-columns:1fr 1.1fr;
  gap:52px;
  align-items:start;
}
.contact-info{
  display:flex;flex-direction:column;gap:20px;
}
.contact-item{
  display:flex;gap:16px;align-items:flex-start;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:20px 22px;
  box-shadow:var(--sh-1);
}
.contact-item .ci-icon{
  width:42px;height:42px;border-radius:12px;flex:none;
  background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-size:17px;
}
.contact-item h4{margin-bottom:4px}
.contact-item p{font-size:14.5px;color:var(--muted);margin:0}
.form-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:32px;
  box-shadow:var(--sh-1);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:18px}
.field label{
  display:block;font-size:14px;font-weight:600;
  margin-bottom:8px;
}
.field input,.field select,.field textarea{
  width:100%;
  min-height:46px;
  padding:11px 14px;
  border:1px solid var(--line);
  border-radius:11px;
  background:#FCFDFB;
  font-size:15px;
  color:var(--text);
  outline:none;
  transition:border-color .18s ease,background .18s ease;
}
.field textarea{min-height:118px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);background:#fff;
}
.field select{
  appearance:none;
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='%235A6560' d='M8 11.2 2.8 6h10.4z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
  background-size:13px;
  padding-right:38px;
}
.check-line{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;color:var(--muted);
  margin-bottom:22px;
}
.check-line input{width:17px;height:17px;margin-top:3px;accent-color:var(--brand)}
.form-submit{width:100%}
.form-note{font-size:13px;color:var(--muted);margin-top:14px;text-align:center}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,.72);
  padding:72px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:44px;
  padding-bottom:52px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-weight:800;font-size:17px;
  margin-bottom:16px;
}
.footer-brand .brand-mark{background:var(--lime);color:var(--dark)}
.footer-col h4{
  color:#fff;font-size:16px;margin-bottom:18px;font-weight:600;
}
.footer-col p{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.66)}
.footer-col li{margin-bottom:11px}
.footer-col a{
  color:rgba(255,255,255,.72);
  font-size:14.5px;
  transition:color .18s ease;
}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;
  padding:24px 0 30px;
  font-size:13.5px;
  color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.55)}
.footer-bottom a:hover{color:var(--lime)}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;
  right:26px;bottom:26px;
  width:46px;height:46px;
  border-radius:50%;
  background:#fff;
  border:1px solid var(--line);
  color:var(--brand);
  display:grid;place-items:center;
  cursor:pointer;
  box-shadow:var(--sh-1);
  opacity:0;pointer-events:none;
  transition:opacity .22s ease,transform .22s ease,box-shadow .22s ease;
  z-index:80;
}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--sec:80px}
  .hero-grid{gap:40px}
  .faq-layout{grid-template-columns:300px 1fr;gap:40px}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:34px}
}
@media (max-width:991px){
  :root{--sec:72px}
  .container-x{padding-left:24px;padding-right:24px}
  .main-nav{
    position:fixed;
    left:0;right:0;top:72px;
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    background:#fff;
    border-bottom:1px solid var(--line);
    padding:14px 24px 20px;
    box-shadow:0 18px 30px -22px rgba(16,24,20,.4);
    transform:translateY(-10px);
    opacity:0;
    visibility:hidden;
    transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
    max-height:calc(100vh - 72px);
    overflow-y:auto;
  }
  .main-nav.is-open{transform:translateY(0);opacity:1;visibility:visible}
  .main-nav a{
    padding:13px 14px;
    border-bottom:0;
    border-left:3px solid transparent;
    font-size:16px;
  }
  .main-nav a.active{border-left-color:var(--lime);background:var(--brand-soft)}
  .main-nav .nav-cta-mobile{margin-top:12px}
  .nav-toggle{display:grid;place-items:center}
  .search-box{display:none}
  .header-actions .btn-main{display:none}
  .hero{padding:56px 0 60px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-sub{max-width:none}
  .hero-visual img{aspect-ratio:16/10}
  .hero-float{left:14px;bottom:-18px}
  .svc-grid{grid-template-columns:1fr 1fr}
  .svc-main{grid-row:auto;grid-column:1/-1}
  .data-grid{grid-template-columns:1fr 1fr}
  .data-item{border-right:0;border-bottom:1px solid rgba(255,255,255,.12)}
  .data-item:nth-child(odd){border-right:1px solid rgba(255,255,255,.12)}
  .data-item:nth-last-child(-n+2){border-bottom:0}
  .case-grid{grid-template-columns:1fr}
  .zigzag-row{grid-template-columns:1fr;gap:28px;padding:22px 0}
  .zigzag-row.reverse .zz-media{order:0}
  .news-grid{grid-template-columns:1fr 1fr}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .contact-layout{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  :root{--sec:56px}
  .container-x{padding-left:20px;padding-right:20px}
  .brand{font-size:16px}
  .brand span.brand-text{max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .hero::after{display:none}
  .hero-metrics{gap:24px}
  .hero-metrics > div{min-width:96px}
  .news-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .form-card{padding:24px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .data-item{padding:26px 18px}
  .svc-grid{grid-template-columns:1fr}
  .to-top{right:16px;bottom:16px}
}
@media (max-width:520px){
  h1{font-size:28px}
  .hero-cta .btn-main,.hero-cta .btn-ghost{width:100%}
  .hero-float{position:static;margin-top:16px;left:auto;bottom:auto}
  .hero-visual img{aspect-ratio:4/3}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --primary:#0E4D3C;
  --primary-soft:#14654f;
  --primary-tint:rgba(14,77,60,.08);
  --lime:#C8F169;
  --orange:#FF6A2B;
  --dark:#0C1A16;
  --bg:#F6F7F3;
  --card:#FFFFFF;
  --line:#E4E8E1;
  --text:#161C18;
  --muted:#5A6560;
  --r-card:16px;
  --r-img:14px;
  --r-btn:12px;
  --sh-sm:0 1px 2px rgba(16,24,20,.06);
  --sh-md:0 12px 28px -12px rgba(16,24,20,.18);
  --sec:96px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16.5px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--orange)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--lime);outline-offset:2px;border-radius:6px;
}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:-.01em}
p{margin:0 0 1.25em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0}
button{font-family:inherit;cursor:pointer}

.container-x{max-width:1280px;margin:0 auto;padding:0 32px;width:100%}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.scrolled{box-shadow:0 8px 22px -14px rgba(16,24,20,.30)}
.header-inner{display:flex;align-items:center;gap:26px;height:74px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary);color:var(--lime);font-size:16px;flex:0 0 auto;
}
.brand-text{font-size:19px;font-weight:800;color:var(--primary);letter-spacing:-.02em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;flex:1 1 auto}
.main-nav > a{
  position:relative;padding:8px 12px;font-size:15.5px;font-weight:600;color:#33403A;
  border-radius:8px;white-space:nowrap;
}
.main-nav > a:hover{color:var(--primary);background:var(--primary-tint)}
.main-nav > a.active{color:var(--primary)}
.main-nav > a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;background:var(--lime);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.search-box{
  display:flex;align-items:center;gap:8px;background:#F1F3EE;border:1px solid transparent;
  border-radius:999px;padding:0 14px;height:42px;width:220px;transition:.2s;
}
.search-box i{color:var(--muted);font-size:14px}
.search-box input{border:0;background:transparent;outline:none;width:100%;font-size:14.5px;color:var(--text)}
.search-box:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px rgba(200,241,105,.45)}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--primary);color:#fff;font-size:15px;font-weight:600;
  padding:11px 22px;border-radius:999px;border:1px solid var(--primary);
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
}
.btn-main:hover{background:var(--primary-soft);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--primary);
}
.nav-cta-mobile{display:none}

/* ---------- breadcrumb ---------- */
.breadcrumb-bar{background:#fff;border-bottom:1px solid var(--line);padding:14px 0}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;font-size:13.5px;color:var(--muted)}
.breadcrumb-list li{display:flex;align-items:center;gap:8px}
.breadcrumb-list li + li::before{content:"/";color:#B9C2BB}
.breadcrumb-list a{color:var(--primary)}
.breadcrumb-list [aria-current]{color:var(--muted);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- article head ---------- */
.article-head{padding:44px 0 0}
.article-head-inner{max-width:860px;margin:0 auto}
.badge-cat{
  display:inline-flex;align-items:center;gap:7px;background:var(--primary-tint);color:var(--primary);
  font-size:13px;font-weight:600;padding:6px 14px;border-radius:999px;margin-bottom:18px;
}
.article-head h1{
  font-size:clamp(28px,3.6vw,44px);line-height:1.24;font-weight:800;letter-spacing:-.015em;margin-bottom:16px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13.5px;color:var(--muted);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--primary);font-size:13px}
.article-lead{
  margin-top:22px;font-size:17px;color:#3B4640;background:#fff;border:1px solid var(--line);
  border-left:4px solid var(--lime);border-radius:12px;padding:18px 22px;line-height:1.8;
}
.article-cover{margin:32px auto 0;max-width:960px}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--line)}
.article-cover figcaption{font-size:13px;color:var(--muted);margin-top:10px;text-align:center}

/* ---------- article layout ---------- */
.article-wrap{padding:56px 0 var(--sec)}
.article-layout{
  display:grid;grid-template-columns:minmax(0,760px) 292px;
  gap:52px;justify-content:center;align-items:start;
}
.article-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:44px 48px;box-shadow:var(--sh-sm);min-width:0;
}
.article-body p{font-size:17px;line-height:1.9;color:#222B26}
.article-body h2{
  position:relative;font-size:clamp(21px,2.2vw,25px);font-weight:700;line-height:1.4;
  margin:2.1em 0 .8em;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:3px;background:var(--lime);
}
.article-body h3{font-size:19px;font-weight:700;margin:1.7em 0 .7em}
.article-body h4{font-size:17px;font-weight:600;margin:1.4em 0 .6em}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.35em}
.article-body li{margin-bottom:.55em;line-height:1.85}
.article-body blockquote{
  margin:1.6em 0;padding:16px 22px;background:#F3F6EE;border-left:4px solid var(--primary);
  border-radius:0 12px 12px 0;color:#2A342E;
}
.article-body blockquote p{margin:0;font-size:16px}
.article-body img{border-radius:var(--r-img);margin:1.6em auto;border:1px solid var(--line)}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.article-body th{background:#F3F6EE;font-weight:600;color:var(--primary)}
.article-body strong{font-weight:700}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}

.article-side{position:sticky;top:98px;display:flex;flex-direction:column;gap:20px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px 22px 24px;box-shadow:var(--sh-sm)}
.side-card h4{font-size:15px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h4 i{color:var(--primary)}
.toc-list{list-style:none;display:flex;flex-direction:column;gap:4px;max-height:320px;overflow:auto}
.toc-list a{display:block;font-size:14px;color:#3B4640;padding:7px 10px;border-radius:8px;border-left:2px solid transparent}
.toc-list a:hover{background:var(--primary-tint);color:var(--primary)}
.toc-list a.current{color:var(--primary);border-left-color:var(--lime);background:var(--primary-tint);font-weight:600}
.side-links{list-style:none;display:flex;flex-direction:column;gap:10px}
.side-links a{font-size:14.5px;display:inline-flex;align-items:center;gap:8px;color:#33403A}
.side-links a:hover{color:var(--orange)}
.side-links i{font-size:12px;color:var(--primary)}
.side-note{font-size:13.5px;color:var(--muted);line-height:1.75}

/* ---------- article footer blocks ---------- */
.article-tail{margin-top:40px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.tag{
  display:inline-flex;align-items:center;font-size:13px;padding:6px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--muted);
}
.tag:hover{border-color:var(--primary);color:var(--primary)}
.divider{height:1px;background:var(--line);border:0;margin:0 0 34px}
.sec-title-sm{font-size:20px;font-weight:700;margin-bottom:20px;display:flex;align-items:center;gap:10px}
.sec-title-sm::before{content:"";width:4px;height:18px;border-radius:3px;background:var(--lime);display:inline-block}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.related-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  display:flex;flex-direction:column;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.related-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:var(--primary)}
.related-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.related-card .rc-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.related-card h3{font-size:16.5px;font-weight:600;line-height:1.5}
.related-card p{font-size:14px;color:var(--muted);line-height:1.7;margin:0}
.rc-meta{font-size:12.5px;color:#8A948E;display:flex;align-items:center;gap:8px;margin-top:auto}
.rc-meta .dot{width:3px;height:3px;border-radius:50%;background:#C6CDC7}

.prev-next{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:40px}
.pn-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px 22px;
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;display:block;
}
.pn-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--sh-md)}
.pn-card span{display:block;font-size:12.5px;color:var(--muted);margin-bottom:6px;letter-spacing:.02em}
.pn-card strong{font-size:16px;color:var(--text);font-weight:600}
.pn-card.next{text-align:right}

.back-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.btn-ghost{
  display:inline-flex;align-items:center;gap:9px;background:transparent;color:var(--primary);
  border:1.5px solid var(--primary);border-radius:var(--r-btn);padding:11px 22px;font-size:15px;font-weight:600;
  transition:.2s;
}
.btn-ghost:hover{background:var(--primary-tint);color:var(--primary);transform:translateY(-1px)}
.btn-accent{
  display:inline-flex;align-items:center;gap:9px;background:var(--orange);color:#fff;
  border:1px solid var(--orange);border-radius:var(--r-btn);padding:11px 22px;font-size:15px;font-weight:600;
  transition:.2s;
}
.btn-accent:hover{background:#ED5A1C;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md)}

/* ---------- empty state ---------- */
.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);padding:64px 28px;text-align:center;
}
.empty-state .es-icon{
  width:64px;height:64px;margin:0 auto 20px;border-radius:18px;background:var(--primary-tint);
  display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:26px;
}
.empty-state h2{font-size:22px;font-weight:700;margin-bottom:10px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:24px}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 var(--sec)}
.cta-inner{
  background:var(--primary);border-radius:20px;padding:48px 52px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-inner::after{
  content:"";position:absolute;right:-70px;top:-90px;width:280px;height:280px;border-radius:50%;
  border:1px solid rgba(200,241,105,.35);pointer-events:none;
}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.6vw,30px);font-weight:700;margin-bottom:10px}
.cta-inner p{color:rgba(255,255,255,.82);font-size:15.5px;margin:0;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}
.btn-lime{
  display:inline-flex;align-items:center;gap:9px;background:var(--lime);color:#0B2E24;
  border:1px solid var(--lime);border-radius:999px;padding:12px 26px;font-size:15px;font-weight:700;transition:.2s;
}
.btn-lime:hover{background:#D6F583;color:#0B2E24;transform:translateY(-1px);box-shadow:0 12px 26px -14px rgba(0,0,0,.5)}
.btn-line{
  display:inline-flex;align-items:center;gap:9px;background:transparent;color:#fff;
  border:1.5px solid rgba(255,255,255,.55);border-radius:999px;padding:12px 26px;font-size:15px;font-weight:600;transition:.2s;
}
.btn-line:hover{border-color:#fff;background:rgba(255,255,255,.1);color:#fff}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#C6D2CB;padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--lime);color:#0B2E24}
.footer-col p{font-size:14px;line-height:1.8;color:#9FAEA6;margin-bottom:12px}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:11px}
.footer-col ul a{font-size:14.5px;color:#B5C2BB}
.footer-col ul a:hover{color:var(--lime)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:#889790;
}

/* ---------- back to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:14px;background:#fff;
  border:1px solid var(--line);color:var(--primary);display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-md);opacity:0;visibility:hidden;transition:.24s;z-index:70;
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{border-color:var(--primary);transform:translateY(-2px)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:34px}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap}
  .side-card{flex:1 1 300px}
  .toc-card{display:none}
}
@media (max-width:991px){
  .container-x{padding:0 20px}
  .header-inner{height:66px;gap:14px}
  .search-box{display:none}
  .main-nav{
    position:fixed;left:0;right:0;top:66px;background:#fff;flex-direction:column;align-items:stretch;
    gap:2px;padding:14px 20px 22px;border-bottom:1px solid var(--line);
    box-shadow:0 18px 30px -22px rgba(16,24,20,.4);
    transform:translateY(-140%);transition:transform .24s ease;max-height:calc(100vh - 66px);overflow:auto;
  }
  .main-nav.open{transform:translateY(0)}
  .main-nav > a{padding:13px 12px;font-size:16px;border-radius:10px}
  .main-nav > a.active::after{left:12px;right:auto;width:26px;bottom:6px}
  .main-nav > a.active{background:var(--primary-tint)}
  .nav-cta-mobile{display:block;margin-top:14px}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .header-actions .btn-main{display:none}
  .sec-title-sm{font-size:19px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  :root{--sec:72px}
}
@media (max-width:767px){
  body{font-size:16px}
  .article-head{padding:32px 0 0}
  .article-body{padding:28px 20px;border-radius:14px}
  .article-body p{font-size:16.5px;line-height:1.85}
  .article-body h2{font-size:21px;margin-top:1.8em}
  .article-wrap{padding:36px 0 56px}
  .article-side{flex-direction:column}
  .related-grid{grid-template-columns:1fr}
  .prev-next{grid-template-columns:1fr}
  .pn-card.next{text-align:left}
  .cta-inner{padding:34px 24px}
  .cta-inner::after{display:none}
  .cta-actions{width:100%}
  .cta-actions a{flex:1 1 auto;justify-content:center}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .breadcrumb-list [aria-current]{max-width:180px}
  :root{--sec:56px}
}
@media (max-width:519px){
  .container-x{padding:0 16px}
  .brand-text{font-size:16.5px}
  .article-meta{gap:8px 14px;font-size:13px}
  .article-lead{padding:16px}
  .back-row a{width:100%;justify-content:center}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}

/* roulang page: category1 */
:root{
  --c-primary:#0E4D3C;
  --c-primary-d:#0A3A2D;
  --c-primary-l:#E6F0EC;
  --c-accent:#C8F169;
  --c-orange:#FF6A2B;
  --c-dark:#0C1A16;
  --c-bg:#F6F7F3;
  --c-card:#FFFFFF;
  --c-line:#E4E8E1;
  --c-text:#161C18;
  --c-muted:#5A6560;
  --r-card:16px;
  --r-img:14px;
  --r-btn:12px;
  --sh-1:0 1px 2px rgba(16,24,20,.06);
  --sh-2:0 12px 28px -12px rgba(16,24,20,.18);
  --sec-y:96px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--c-orange);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--c-accent);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4{margin:0;color:var(--c-text);letter-spacing:-0.01em;}
p{margin:0 0 1.25em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}

.container-x{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 32px;
}

/* ============ HEADER ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px -14px rgba(16,24,20,.35);}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:72px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--c-primary);
  font-weight:800;
  font-size:18px;
  letter-spacing:-0.005em;
}
.brand:hover{color:var(--c-primary);}
.brand-mark{
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:11px;
  background:var(--c-primary);
  color:var(--c-accent);
  font-size:15px;
}
.brand-text{white-space:nowrap;}

.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:12px;
  flex:1 1 auto;
}
.main-nav a{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:15px;
  font-weight:500;
  color:var(--c-muted);
  border-radius:10px;
  white-space:nowrap;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  background:var(--c-accent);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s ease;
}
.main-nav a:hover{color:var(--c-primary);background:var(--c-primary-l);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--c-primary);font-weight:700;}
.main-nav a.active::after{transform:scaleX(1);}

.header-actions{
  display:flex;
  align-items:center;
  gap:14px;
  flex:0 0 auto;
}
.search-box{
  position:relative;
  display:flex;
  align-items:center;
  background:#F1F3EF;
  border:1px solid transparent;
  border-radius:999px;
  padding:0 14px;
  height:42px;
  width:216px;
  transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.search-box i{color:var(--c-muted);font-size:13px;margin-right:8px;}
.search-box input{
  border:0;
  background:transparent;
  outline:none;
  width:100%;
  font-size:14px;
  color:var(--c-text);
  font-family:inherit;
}
.search-box input::placeholder{color:#8E9791;}
.search-box:focus-within{
  background:#fff;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(200,241,105,.5);
}

.btn-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  border:0;
  border-radius:999px;
  background:var(--c-primary);
  color:#fff;
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
}
.btn-main:hover{
  background:#125C48;
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--sh-2);
}
.btn-main:active{transform:translateY(0);}

.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border:1.5px solid var(--c-primary);
  border-radius:12px;
  background:transparent;
  color:var(--c-primary);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:background .2s ease,transform .2s ease;
}
.btn-ghost:hover{background:rgba(14,77,60,.08);color:var(--c-primary);transform:translateY(-1px);}

.btn-accent{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 26px;
  border:0;
  border-radius:12px;
  background:var(--c-orange);
  color:#fff;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
}
.btn-accent:hover{background:#F25B1A;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--c-line);
  background:#fff;
  border-radius:12px;
  color:var(--c-primary);
  font-size:17px;
  cursor:pointer;
}
.nav-cta-mobile{display:none;}

/* ============ PAGE HERO ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  padding:44px 0 56px;
}
.page-hero::before{
  content:"";
  position:absolute;
  right:-120px;
  top:-90px;
  width:420px;
  height:420px;
  border:1.5px solid rgba(14,77,60,.12);
  border-radius:50%;
  pointer-events:none;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:40px;
  top:0;
  width:1px;
  height:100%;
  background:linear-gradient(180deg,rgba(200,241,105,0) 0%,rgba(200,241,105,.9) 50%,rgba(200,241,105,0) 100%);
  pointer-events:none;
}
.breadcrumb-x{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13.5px;
  color:var(--c-muted);
  margin-bottom:22px;
  flex-wrap:wrap;
}
.breadcrumb-x li{display:inline-flex;align-items:center;gap:10px;}
.breadcrumb-x li + li::before{
  content:"/";
  color:#B9C1BB;
}
.breadcrumb-x a{color:var(--c-primary);font-weight:500;}
.breadcrumb-x li[aria-current] {color:var(--c-muted);}

.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);
  gap:48px;
  align-items:center;
}
.badge-x{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:5px 14px;
  border-radius:999px;
  background:var(--c-primary-l);
  color:var(--c-primary);
  font-size:13px;
  font-weight:600;
  margin-bottom:18px;
}
.badge-x i{font-size:11px;color:var(--c-orange);}
.page-hero h1{
  font-size:clamp(28px,3.4vw,44px);
  line-height:1.22;
  font-weight:800;
  margin-bottom:16px;
  max-width:18em;
}
.page-hero .hero-sub{
  font-size:17px;
  line-height:1.75;
  color:var(--c-muted);
  max-width:44em;
  margin-bottom:26px;
}
.hero-meta{
  display:flex;
  gap:28px;
  flex-wrap:wrap;
  padding-top:22px;
  border-top:1px solid var(--c-line);
}
.hero-meta div{display:flex;flex-direction:column;gap:2px;}
.hero-meta strong{
  font-size:22px;
  font-weight:800;
  color:var(--c-primary);
  font-variant-numeric:tabular-nums;
}
.hero-meta span{font-size:13px;color:var(--c-muted);}

.hero-media{
  position:relative;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
  aspect-ratio:16/11;
}
.hero-media img{width:100%;height:100%;object-fit:cover;}

/* ============ SECTIONS ============ */
.section{padding:var(--sec-y) 0;}
.section-alt{background:#fff;}
.section-head{
  max-width:760px;
  margin-bottom:44px;
}
.section-head h2{
  font-size:clamp(24px,2.8vw,34px);
  line-height:1.3;
  font-weight:700;
  margin-bottom:14px;
}
.section-head p{color:var(--c-muted);font-size:16.5px;}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--c-orange);
  margin-bottom:12px;
  text-transform:uppercase;
}

/* ---- 卡片网格型 ---- */
.card-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.feature-card{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:0;
  overflow:hidden;
  box-shadow:var(--sh-1);
  display:flex;
  flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.feature-card:hover{
  transform:translateY(-2px);
  border-color:var(--c-primary);
  box-shadow:var(--sh-2);
}
.feature-card .thumb{
  aspect-ratio:16/10;
  overflow:hidden;
  background:#EDF0EA;
}
.feature-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.feature-card:hover .thumb img{transform:scale(1.03);}
.feature-card .body{padding:26px 28px 28px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.feature-card h3{font-size:21px;font-weight:700;line-height:1.4;}
.feature-card p{color:var(--c-muted);font-size:15.5px;margin:0;}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:4px;}
.tag{
  display:inline-flex;
  align-items:center;
  padding:3px 11px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:600;
  background:#F1F3EF;
  color:var(--c-muted);
}
.tag.tag-main{background:var(--c-primary-l);color:var(--c-primary);}
.tag.tag-accent{background:#FFF0E8;color:#C64C12;}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:auto;
  font-size:15px;
  font-weight:600;
  color:var(--c-primary);
}
.link-more i{font-size:12px;transition:transform .2s ease;}
.link-more:hover i{transform:translateX(3px);}

/* ---- 紧凑列表 ---- */
.mini-list{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;
  margin-top:24px;
}
.mini-item{
  display:flex;
  gap:14px;
  align-items:flex-start;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:20px 22px;
  box-shadow:var(--sh-1);
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.mini-item:hover{border-color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--sh-2);}
.mini-item .ico{
  flex:0 0 auto;
  width:40px;height:40px;
  border-radius:12px;
  background:var(--c-primary-l);
  color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;
}
.mini-item h4{font-size:16.5px;font-weight:600;margin-bottom:6px;}
.mini-item p{font-size:14.5px;color:var(--c-muted);margin:0;}

/* ---- 步骤流程 ---- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  counter-reset:step;
}
.step{
  position:relative;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:30px 26px 28px;
  box-shadow:var(--sh-1);
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.step:hover{border-color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--sh-2);}
.step .num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;height:42px;
  border-radius:12px;
  background:var(--c-primary);
  color:var(--c-accent);
  font-weight:800;
  font-size:17px;
  margin-bottom:18px;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:18px;font-weight:600;margin-bottom:10px;}
.step p{font-size:14.5px;color:var(--c-muted);margin:0;}

/* ---- 深色数据带 ---- */
.dark-band{
  background:var(--c-dark);
  color:#E8EFE9;
  padding:calc(var(--sec-y) + 8px) 0;
}
.dark-band .section-head h2{color:#fff;}
.dark-band .section-head p{color:#A9B6AE;}
.dark-band .eyebrow{color:var(--c-accent);}
.stat-row{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;
  border-top:1px solid rgba(255,255,255,.12);
}
.stat{
  padding:34px 28px 8px;
  border-right:1px solid rgba(255,255,255,.12);
}
.stat:last-child{border-right:0;}
.stat strong{
  display:block;
  font-size:clamp(30px,3.4vw,44px);
  font-weight:800;
  line-height:1.1;
  color:#fff;
  font-variant-numeric:tabular-nums;
  margin-bottom:10px;
}
.stat strong em{font-style:normal;font-size:.5em;color:var(--c-accent);margin-left:4px;font-weight:700;}
.stat h4{font-size:16px;font-weight:600;color:var(--c-accent);margin-bottom:8px;}
.stat p{font-size:14.5px;color:#A9B6AE;margin:0;}

/* ---- 图文自查区 ---- */
.split{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);
  gap:56px;
  align-items:center;
}
.split-media{
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
  aspect-ratio:4/3;
}
.split-media img{width:100%;height:100%;object-fit:cover;}
.check-list{display:flex;flex-direction:column;gap:16px;margin-top:26px;}
.check-list li{
  display:flex;
  gap:14px;
  align-items:flex-start;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:14px;
  padding:18px 20px;
  box-shadow:var(--sh-1);
}
.check-list i{
  color:var(--c-primary);
  background:var(--c-primary-l);
  width:28px;height:28px;
  border-radius:9px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;
  flex:0 0 auto;
  margin-top:2px;
}
.check-list strong{display:block;font-size:16px;font-weight:600;margin-bottom:4px;}
.check-list span{font-size:14.5px;color:var(--c-muted);}

/* ---- FAQ ---- */
.faq-wrap{
  display:grid;
  grid-template-columns:minmax(0,.8fr) minmax(0,1.6fr);
  gap:56px;
  align-items:start;
}
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:border-color .22s ease;
}
.faq-item.open{border-color:var(--c-primary);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 24px;
  border:0;
  background:transparent;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--c-text);
  cursor:pointer;
  position:relative;
  transition:color .2s ease;
}
.faq-q::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:4px;
  border-radius:0 4px 4px 0;
  background:var(--c-accent);
  transform:scaleY(0);
  transform-origin:center;
  transition:transform .22s ease;
}
.faq-item.open .faq-q::before{transform:scaleY(1);}
.faq-item.open .faq-q{color:var(--c-primary);}
.faq-q i{font-size:13px;color:var(--c-muted);transition:transform .22s ease;flex:0 0 auto;}
.faq-item.open .faq-q i{transform:rotate(180deg);color:var(--c-primary);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .24s ease;
}
.faq-a .inner{
  padding:0 24px 22px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--c-muted);
}

/* ---- CTA 带 ---- */
.cta-band{
  background:var(--c-primary);
  border-radius:20px;
  padding:44px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
  color:#fff;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;bottom:-90px;
  width:260px;height:260px;
  border-radius:50%;
  border:26px solid rgba(200,241,105,.14);
  pointer-events:none;
}
.cta-band h2{
  color:#fff;
  font-size:clamp(21px,2.2vw,28px);
  font-weight:700;
  margin-bottom:8px;
}
.cta-band p{color:rgba(255,255,255,.82);font-size:15.5px;margin:0;}
.cta-band .btn-light-x{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:999px;
  background:#fff;
  color:var(--c-primary);
  font-weight:700;
  font-size:15px;
  border:0;
  cursor:pointer;
  position:relative;
  z-index:1;
  transition:transform .2s ease,box-shadow .2s ease;
}
.cta-band .btn-light-x:hover{color:var(--c-primary);transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(0,0,0,.5);}

.list-entry{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  margin-top:38px;
  padding:24px 28px;
  background:#fff;
  border:1px dashed var(--c-line);
  border-radius:var(--r-card);
}
.list-entry p{margin:0;font-size:15.5px;color:var(--c-muted);}
.list-entry strong{color:var(--c-text);font-weight:600;}

/* ============ FOOTER ============ */
.site-footer{
  background:var(--c-dark);
  color:#C6D2CA;
  padding:72px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  gap:44px;
  padding-bottom:48px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-weight:800;
  font-size:18px;
  margin-bottom:16px;
}
.footer-brand .brand-mark{background:rgba(200,241,105,.14);color:var(--c-accent);}
.footer-col p{font-size:14.5px;line-height:1.8;color:#9FADA5;margin-bottom:12px;}
.footer-col h4{
  color:#fff;
  font-size:15.5px;
  font-weight:700;
  margin-bottom:18px;
  letter-spacing:.01em;
}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul a{
  color:#B4C1B9;
  font-size:14.5px;
  transition:color .2s ease,padding-left .2s ease;
}
.footer-col ul a:hover{color:var(--c-accent);padding-left:3px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13.5px;
  color:#8B998F;
}

/* ============ RESPONSIVE ============ */
@media (max-width:1199.98px){
  .container-x{padding:0 28px;}
  :root{--sec-y:72px;}
  .split{gap:40px;}
  .faq-wrap{gap:40px;}
}
@media (max-width:991.98px){
  .main-nav{
    position:fixed;
    top:72px;left:0;right:0;
    background:#fff;
    border-bottom:1px solid var(--c-line);
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    padding:14px 20px 22px;
    margin-left:0;
    box-shadow:0 22px 34px -22px rgba(16,24,20,.4);
    transform:translateY(-10px);
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    transition:opacity .22s ease,transform .22s ease,visibility .22s;
    max-height:calc(100vh - 72px);
    overflow-y:auto;
  }
  .main-nav.open{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto;}
  .main-nav a{padding:13px 12px;font-size:15.5px;border-radius:10px;}
  .main-nav a::after{display:none;}
  .main-nav a.active{background:var(--c-primary-l);}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .search-box{display:none;}
  .header-actions .btn-main{display:none;}
  .nav-cta-mobile{display:block;margin-top:14px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-media{aspect-ratio:16/9;}
  .card-grid{grid-template-columns:1fr;}
  .mini-list{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-row{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat{border-right:0;border-bottom:1px solid rgba(255,255,255,.12);padding:28px 20px 24px;}
  .stat:nth-child(odd){border-right:1px solid rgba(255,255,255,.12);}
  .split{grid-template-columns:1fr;}
  .split-media{aspect-ratio:16/10;order:-1;}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .cta-band{padding:36px 32px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px;}
}
@media (max-width:767.98px){
  .container-x{padding:0 20px;}
  :root{--sec-y:56px;}
  .header-inner{min-height:66px;gap:12px;}
  .brand{font-size:16.5px;}
  .brand-mark{width:31px;height:31px;border-radius:10px;font-size:14px;}
  .main-nav{top:66px;max-height:calc(100vh - 66px);}
  .page-hero{padding:30px 0 42px;}
  .page-hero::before{display:none;}
  .page-hero::after{display:none;}
  .page-hero h1{font-size:clamp(25px,7vw,32px);}
  .hero-meta{gap:20px;}
  .hero-meta strong{font-size:19px;}
  .mini-list{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .stat-row{grid-template-columns:1fr;}
  .stat{border-right:0 !important;padding:24px 4px 20px;}
  .cta-band{padding:30px 24px;border-radius:16px;}
  .cta-band .btn-light-x{width:100%;justify-content:center;}
  .feature-card .body{padding:22px 20px 24px;}
  .faq-q{font-size:15.5px;padding:17px 18px;}
  .faq-a .inner{padding:0 18px 18px;font-size:15px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:34px;}
  .site-footer{padding-top:52px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .list-entry{flex-direction:column;align-items:flex-start;}
}
@media (max-width:519.98px){
  .brand-text{font-size:15.5px;}
  .hero-meta{flex-direction:column;gap:14px;}
  .section-head{margin-bottom:32px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --brand:#0E4D3C;
  --brand-deep:#0B3D2F;
  --brand-tint:rgba(14,77,60,.08);
  --lime:#C8F169;
  --orange:#FF6A2B;
  --ink:#0C1A16;
  --bg:#F6F7F3;
  --card:#FFFFFF;
  --line:#E4E8E1;
  --text:#161C18;
  --muted:#5A6560;
  --r-lg:16px;
  --r-md:14px;
  --r-sm:12px;
  --sh-1:0 1px 2px rgba(16,24,20,.06);
  --sh-2:0 12px 28px -12px rgba(16,24,20,.18);
  --sec:96px;
  --header-h:72px;
}

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

html{-webkit-text-size-adjust:100%;}

body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:17px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}

img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,border-color .2s ease;}
a:hover{color:var(--orange);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:-.01em;color:var(--ink);}
p{margin:0 0 1.25em;}
p:last-child{margin-bottom:0;}
button{font:inherit;}
input,select,textarea{font:inherit;color:inherit;}

:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}

.container-x{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 32px;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px -14px rgba(16,24,20,.35);}

.header-inner{
  height:var(--header-h);
  display:flex;
  align-items:center;
  gap:24px;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--brand);
  font-weight:800;
  font-size:18px;
  letter-spacing:-.01em;
}
.brand:hover{color:var(--brand);}
.brand-mark{
  width:34px;height:34px;
  border-radius:10px;
  background:var(--brand);
  color:var(--lime);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  flex-shrink:0;
}
.brand-text{white-space:nowrap;}

.main-nav{
  display:flex;
  align-items:center;
  gap:2px;
  margin:0 auto;
}
.main-nav a{
  position:relative;
  display:inline-block;
  padding:9px 14px;
  border-radius:10px;
  font-size:15px;
  font-weight:500;
  color:#35403A;
  white-space:nowrap;
}
.main-nav a:hover{color:var(--brand);background:var(--brand-tint);}
.main-nav a.active{color:var(--brand);font-weight:700;}
.main-nav a.active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--lime);
}

.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}

.search-box{
  display:flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 14px;
  border-radius:999px;
  background:#F1F3EF;
  border:1px solid transparent;
  transition:border-color .2s ease,background .2s ease;
}
.search-box:focus-within{border-color:var(--brand);background:#fff;}
.search-box i{color:var(--muted);font-size:13px;}
.search-box input{
  border:none;
  outline:none;
  background:transparent;
  width:150px;
  font-size:14px;
}
.search-box input::placeholder{color:#95A09A;}

.btn-main,.btn-ghost,.btn-accent{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  padding:10px 22px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-main{background:var(--brand);color:#fff;}
.btn-main:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);border-width:1.5px;}
.btn-ghost:hover{background:var(--brand-tint);color:var(--brand);transform:translateY(-1px);}
.btn-accent{background:var(--orange);color:#fff;}
.btn-accent:hover{background:#EA5A1C;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}

.nav-toggle{
  display:none;
  width:42px;height:42px;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--brand);
  font-size:16px;
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--brand);}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  background:linear-gradient(180deg,#FFFFFF 0%,#F6F7F3 100%);
  border-bottom:1px solid var(--line);
  padding:56px 0 64px;
}
.page-hero::after{
  content:"";
  position:absolute;
  top:-120px;right:-80px;
  width:420px;height:420px;
  border-radius:50%;
  border:1px solid rgba(14,77,60,.12);
  box-shadow:0 0 0 34px rgba(200,241,105,.16);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:center;
}

.breadcrumb-x{margin-bottom:18px;}
.breadcrumb-x ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);}
.breadcrumb-x li+li::before{content:"/";margin-right:8px;color:#B7C0BA;}
.breadcrumb-x a{color:var(--brand);}
.breadcrumb-x li[aria-current] {color:var(--muted);}

.page-hero h1{
  font-size:clamp(30px,4vw,46px);
  line-height:1.22;
  font-weight:800;
  margin-bottom:16px;
}
.hero-lead{
  font-size:17px;
  color:var(--muted);
  max-width:560px;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px;}

.hero-metrics{
  display:flex;
  flex-wrap:wrap;
  gap:12px 34px;
  padding-top:22px;
  border-top:1px solid var(--line);
}
.hero-metrics li{display:flex;align-items:baseline;gap:9px;}
.hero-metrics strong{
  font-size:26px;
  font-weight:800;
  color:var(--brand);
  line-height:1;
}
.hero-metrics span{font-size:14px;color:var(--muted);}

.hero-media{position:relative;}
.hero-media img{
  width:100%;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
  aspect-ratio:16/11;
  object-fit:cover;
}
.hero-media::before{
  content:"";
  position:absolute;
  left:-16px;bottom:-16px;
  width:120px;height:120px;
  border-radius:var(--r-md);
  background:repeating-linear-gradient(135deg,rgba(200,241,105,.55) 0 6px,transparent 6px 14px);
  z-index:-1;
}

/* ============ 通用板块 ============ */
.sec{padding:var(--sec) 0;}
.sec-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

.sec-head{max-width:720px;margin-bottom:44px;}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  color:var(--brand);
  background:var(--brand-tint);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:16px;
}
.sec-head h2{font-size:clamp(24px,2.8vw,34px);margin-bottom:14px;}
.sec-sub{color:var(--muted);font-size:16px;margin:0;}

/* ============ 时间线 ============ */
.timeline{
  position:relative;
  padding-left:96px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:35px;
  top:18px;
  bottom:18px;
  width:1px;
  background:var(--line);
}
.tl-item{position:relative;padding-bottom:40px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;
  left:-71px;
  top:26px;
  width:16px;height:16px;
  border-radius:50%;
  background:var(--lime);
  border:3px solid #fff;
  box-shadow:0 0 0 1px var(--line);
}
.tl-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px 28px;
  box-shadow:var(--sh-1);
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.tl-card:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh-2);}
.tl-top{display:flex;align-items:baseline;gap:16px;margin-bottom:12px;}
.tl-index{
  font-size:40px;
  font-weight:800;
  line-height:1;
  color:rgba(14,77,60,.16);
  flex-shrink:0;
}
.tl-top h3{font-size:21px;}
.tl-card p{color:var(--muted);font-size:16px;margin-bottom:14px;}
.tl-list{display:grid;gap:9px;}
.tl-list li{
  position:relative;
  padding-left:20px;
  font-size:15.5px;
  color:#38423C;
}
.tl-list li::before{
  content:"";
  position:absolute;
  left:2px;top:11px;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--brand);
}

/* ============ 深色数据带 ============ */
.sec-dark{
  background:var(--ink);
  color:#E8EDE9;
  padding:calc(var(--sec) + 16px) 0;
}
.sec-dark h2{color:#fff;font-size:clamp(24px,2.8vw,32px);}
.dark-head{max-width:700px;margin-bottom:44px;}
.dark-head p{color:#A9B6B0;margin:14px 0 0;}
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
}
.stat-cell{
  padding:6px 28px;
  border-left:1px solid rgba(255,255,255,.12);
}
.stat-cell:first-child{border-left:none;padding-left:0;}
.stat-num{
  display:flex;
  align-items:baseline;
  gap:6px;
  color:var(--lime);
  font-weight:800;
  font-size:42px;
  line-height:1.1;
  margin-bottom:10px;
}
.stat-num small{font-size:15px;font-weight:600;color:#CFD8D3;}
.stat-cell p{color:#A9B6B0;font-size:15px;margin:0;}

/* ============ 交替图文 ============ */
.zig{display:grid;gap:56px;}
.zig-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
}
.zig-row.reverse .zig-media{order:2;}
.zig-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.zig-body h3{font-size:22px;margin-bottom:14px;}
.zig-body>p{color:var(--muted);font-size:16px;}
.zig-points{display:grid;gap:12px;margin:18px 0 22px;}
.zig-points li{
  display:flex;
  gap:12px;
  font-size:15.5px;
  color:#38423C;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  padding:12px 16px;
}
.zig-points i{color:var(--brand);margin-top:5px;font-size:13px;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-weight:600;
  font-size:15px;
  border-bottom:1px solid transparent;
}
.text-link:hover{border-color:currentColor;text-decoration:none;}

/* ============ 风险信号卡片 ============ */
.risk-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.risk-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px 24px;
  box-shadow:var(--sh-1);
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.risk-card:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh-2);}
.risk-icon{
  width:44px;height:44px;
  border-radius:12px;
  background:var(--brand-tint);
  color:var(--brand);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:17px;
  margin-bottom:16px;
}
.risk-card h3{font-size:18px;margin-bottom:10px;}
.risk-card p{font-size:15px;color:var(--muted);margin:0;}

/* ============ FAQ ============ */
.faq-layout{
  display:grid;
  grid-template-columns:340px 1fr;
  gap:56px;
  align-items:start;
}
.faq-intro h2{font-size:clamp(24px,2.8vw,32px);margin-bottom:14px;}
.faq-intro p{color:var(--muted);font-size:16px;}
.faq-list{display:grid;gap:14px;}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:0 24px;
  box-shadow:var(--sh-1);
  transition:border-color .22s ease;
}
.faq-item[open]{border-color:var(--brand);box-shadow:var(--sh-2);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 0;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary i{
  color:var(--brand);
  font-size:14px;
  transition:transform .22s ease;
  flex-shrink:0;
}
.faq-item[open] summary{color:var(--brand);}
.faq-item[open] summary i{transform:rotate(180deg);}
.faq-body{
  padding:0 0 22px;
  border-top:1px solid var(--line);
  padding-top:18px;
}
.faq-body p{font-size:16px;color:var(--muted);line-height:1.8;margin:0;}

/* ============ CTA 带 ============ */
.cta-band{
  background:var(--brand);
  color:#fff;
  border-radius:20px;
  padding:52px 56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;top:-60px;
  width:260px;height:260px;
  border-radius:50%;
  border:1px solid rgba(200,241,105,.35);
  pointer-events:none;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.82);font-size:16px;margin:0;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex-shrink:0;position:relative;z-index:1;}
.cta-actions .btn-ghost{color:#fff;border-color:rgba(255,255,255,.6);}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;}

/* ============ 返回顶部 ============ */
.back-top{
  position:fixed;
  right:24px;bottom:24px;
  width:46px;height:46px;
  border-radius:50%;
  background:#fff;
  border:1px solid var(--line);
  color:var(--brand);
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:var(--sh-1);
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease,border-color .22s ease;
  z-index:900;
}
.back-top.show{opacity:1;visibility:visible;transform:none;}
.back-top:hover{border-color:var(--brand);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:#C6D0CA;
  padding:72px 0 28px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-weight:800;
  font-size:18px;
  margin-bottom:16px;
}
.footer-col p{font-size:14.5px;color:#9EAAA4;line-height:1.8;margin-bottom:10px;}
.footer-col h4{
  color:#fff;
  font-size:15px;
  margin-bottom:18px;
  font-weight:700;
}
.footer-col ul{display:grid;gap:11px;}
.footer-col ul a{
  color:#C6D0CA;
  font-size:14.5px;
}
.footer-col ul a:hover{color:var(--lime);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  padding-top:24px;
  font-size:13.5px;
  color:#8B968F;
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  :root{--sec:80px;}
  .faq-layout{grid-template-columns:300px 1fr;gap:40px;}
}

@media (max-width:991.98px){
  :root{--sec:72px;}

  .main-nav{
    position:fixed;
    top:var(--header-h);
    left:0;right:0;
    margin:0;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:18px 20px 26px;
    background:#fff;
    border-bottom:1px solid var(--line);
    box-shadow:var(--sh-2);
    max-height:calc(100vh - var(--header-h));
    overflow-y:auto;
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
  }
  .main-nav.open{opacity:1;visibility:visible;transform:none;}
  .main-nav a{padding:13px 14px;font-size:16px;border-radius:12px;}
  .main-nav a.active::after{display:none;}
  .main-nav a.active{background:var(--brand-tint);}
  .nav-cta-mobile{margin-top:12px;}

  .search-box{display:none;}
  .nav-toggle{display:inline-flex;}

  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-media::before{display:none;}
  .page-hero{padding:40px 0 52px;}
  .page-hero::after{display:none;}

  .stat-grid{grid-template-columns:repeat(2,1fr);gap:28px 0;}
  .stat-cell{padding-left:0;padding-right:20px;border-left:none;}
  .stat-cell:nth-child(even){border-left:1px solid rgba(255,255,255,.12);padding-left:28px;}

  .zig-row{grid-template-columns:1fr;gap:26px;}
  .zig-row.reverse .zig-media{order:0;}

  .risk-grid{grid-template-columns:repeat(2,1fr);}

  .faq-layout{grid-template-columns:1fr;gap:32px;}

  .cta-band{flex-direction:column;align-items:flex-start;padding:40px;}

  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}

@media (max-width:767.98px){
  :root{--sec:56px;}
  .container-x{padding:0 20px;}
  body{font-size:16px;}

  .brand-text{font-size:16px;}
  .header-inner{gap:12px;}

  .timeline{padding-left:0;}
  .timeline::before{display:none;}
  .tl-dot{display:none;}
  .tl-card{padding:22px 20px;}
  .tl-index{font-size:32px;}
  .tl-top h3{font-size:19px;}

  .risk-grid{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:1fr;}
  .stat-cell:nth-child(even){border-left:none;padding-left:0;}
  .stat-cell{padding-right:0;}

  .cta-band{padding:30px 24px;border-radius:16px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-main,.cta-actions .btn-ghost{flex:1;}

  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}

  .back-top{right:16px;bottom:16px;}
}

@media (max-width:575.98px){
  h1{font-size:26px;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
  .hero-metrics{gap:12px 22px;}
  .hero-metrics strong{font-size:22px;}
  .search-box input{width:110px;}
}

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

/* roulang page: category3 */
:root{
  --brand:#0E4D3C;
  --brand-600:#12654F;
  --brand-soft:#E8F1ED;
  --lime:#C8F169;
  --orange:#FF6A2B;
  --dark:#0C1A16;
  --bg:#F6F7F3;
  --card:#FFFFFF;
  --line:#E4E8E1;
  --text:#161C18;
  --muted:#5A6560;
  --r-card:16px;
  --r-img:14px;
  --r-btn:12px;
  --sh-1:0 1px 2px rgba(16,24,20,.06);
  --sh-2:0 12px 28px -12px rgba(16,24,20,.18);
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:17px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--orange)}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;font-weight:700;line-height:1.3}
p{margin:0 0 1.25em}
p:last-child{margin-bottom:0}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px}
::selection{background:var(--lime);color:var(--dark)}

.container-x{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
.section{padding:var(--sec) 0}
.section-alt{background:#FFFFFF;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-dark{background:var(--dark);color:#E9F0EC;padding:calc(var(--sec) + 16px) 0}
.nums{font-variant-numeric:tabular-nums}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px -18px rgba(16,24,20,.55)}
.header-inner{display:flex;align-items:center;gap:20px;height:74px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--brand);flex-shrink:0}
.brand:hover{color:var(--brand)}
.brand-mark{
  width:36px;height:36px;border-radius:11px;background:var(--brand);color:var(--lime);
  display:grid;place-items:center;font-size:15px;flex-shrink:0;
}
.brand-text{white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:10px}
.main-nav a{
  position:relative;padding:10px 13px;border-radius:10px;
  font-size:15.5px;font-weight:600;color:var(--muted);white-space:nowrap;
}
.main-nav a:hover{color:var(--brand);background:var(--brand-soft)}
.main-nav a.active{color:var(--brand)}
.main-nav a.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:1px;height:2px;
  background:var(--lime);border-radius:2px;
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;gap:9px;height:42px;width:230px;padding:0 15px;
  background:#F2F4EF;border:1px solid transparent;border-radius:999px;
  transition:border-color .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.search-box i{color:var(--muted);font-size:14px}
.search-box input{border:0;background:transparent;outline:none;width:100%;font-size:14.5px}
.search-box input::placeholder{color:#93A09A}
.search-box:focus-within{background:#fff;border-color:var(--brand);box-shadow:0 0 0 3px rgba(14,77,60,.09)}
.btn-main,.btn-ghost,.btn-orange{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:999px;font-size:15.5px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-main{background:var(--brand);color:#fff}
.btn-main:hover{background:var(--brand-600);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(14,77,60,.6)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:rgba(14,77,60,.08);color:var(--brand);transform:translateY(-1px)}
.btn-orange{background:var(--orange);color:#fff}
.btn-orange:hover{background:#F15C1D;color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(255,106,43,.7)}
.btn-lg{padding:14px 30px;font-size:16.5px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:#fff;color:var(--brand);place-items:center;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--brand);background:var(--brand-soft)}
.nav-cta-mobile{display:none;margin-top:10px}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:52px 0 68px;
  background:linear-gradient(180deg,#EFF3EC 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;right:-130px;top:-160px;width:430px;height:430px;
  border-radius:50%;border:1.5px dashed rgba(14,77,60,.16);pointer-events:none;
}
.page-hero::before{
  content:"";position:absolute;left:-60px;bottom:-80px;width:280px;height:280px;
  background:radial-gradient(circle at 30% 30%,rgba(200,241,105,.30),transparent 62%);
  pointer-events:none;
}
.breadcrumb-x{
  display:flex;flex-wrap:wrap;align-items:center;gap:6px;
  font-size:13.5px;color:var(--muted);margin-bottom:22px;position:relative;z-index:1;
}
.breadcrumb-x li{display:flex;align-items:center;gap:6px}
.breadcrumb-x li+li::before{content:"/";color:#B7C0BA}
.breadcrumb-x a{color:var(--muted);font-weight:500}
.breadcrumb-x a:hover{color:var(--brand)}
.breadcrumb-x .current{color:var(--brand);font-weight:600}
.hero-grid{
  display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center;
  position:relative;z-index:1;
}
.badge-x{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(200,241,105,.5);color:#20402F;margin-bottom:18px;
}
.badge-x i{font-size:12px}
.page-hero h1{
  font-size:clamp(30px,4.2vw,48px);line-height:1.2;font-weight:800;color:var(--brand);
  margin-bottom:18px;
}
.hero-sub{font-size:17.5px;color:var(--muted);max-width:540px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-thumb{position:relative}
.hero-thumb img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--line);box-shadow:var(--sh-2);
}
.hero-thumb .thumb-tag{
  position:absolute;left:16px;bottom:16px;
  background:rgba(12,26,22,.86);color:#EAF0EC;
  padding:9px 16px;border-radius:999px;font-size:13.5px;font-weight:600;
  display:inline-flex;align-items:center;gap:8px;
}
.hero-thumb .thumb-tag i{color:var(--lime)}

/* ============ 通用区块标题 ============ */
.section-head{margin-bottom:44px;max-width:760px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;font-weight:700;letter-spacing:.06em;color:var(--brand);
  text-transform:uppercase;margin-bottom:12px;
}
.section-head .eyebrow::before{content:"";width:22px;height:2px;background:var(--lime);border-radius:2px}
.section-head h2{font-size:clamp(24px,2.8vw,34px);color:var(--brand);margin-bottom:14px}
.section-head p{color:var(--muted);font-size:16.5px;margin:0}
.section-dark .section-head h2{color:#fff}
.section-dark .section-head p{color:rgba(233,240,236,.72)}
.section-dark .section-head .eyebrow{color:var(--lime)}

/* ============ 筛选标签 ============ */
.filter-block{padding:40px 0 0}
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  padding:16px 20px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
}
.filter-bar .filter-label{font-size:14px;font-weight:600;color:var(--muted);margin-right:6px}
.chip{
  padding:8px 17px;border-radius:999px;border:1px solid var(--line);
  background:#FBFAF7;color:var(--muted);font-size:14px;font-weight:600;cursor:pointer;
  transition:all .2s ease;
}
.chip:hover{border-color:var(--brand);color:var(--brand);background:#fff}
.chip.active{background:var(--brand);border-color:var(--brand);color:#fff}

/* ============ 对照清单 ============ */
.compare{
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  background:#fff;box-shadow:var(--sh-1);
}
.compare-head{
  display:grid;grid-template-columns:1.05fr 1fr 1.35fr;gap:22px;
  padding:16px 26px;background:var(--brand);color:#fff;
  font-size:14px;font-weight:600;letter-spacing:.02em;
}
.compare-row{
  display:grid;grid-template-columns:1.05fr 1fr 1.35fr;gap:22px;
  padding:22px 26px;border-top:1px solid var(--line);
  transition:background-color .2s ease;
}
.compare-row:nth-child(even){background:#FAFBF8}
.compare-row:hover{background:#F3F7F3}
.c-col{font-size:15.5px;color:var(--text);line-height:1.7}
.c-col.is-symptom{font-weight:700;color:var(--brand)}
.c-col.is-cause{color:var(--muted)}
.c-col.is-fix{color:var(--text)}
.c-col .mini{
  display:inline-block;margin-right:8px;padding:2px 9px;border-radius:999px;
  font-size:12px;font-weight:700;background:rgba(200,241,105,.55);color:#20402F;vertical-align:1px;
}

/* ============ 步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step{
  background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.13);
  border-radius:var(--r-card);padding:26px 24px;
  transition:transform .22s ease,border-color .22s ease,background-color .22s ease;
}
.step:hover{transform:translateY(-3px);border-color:rgba(200,241,105,.55);background:rgba(255,255,255,.075)}
.step-num{
  font-size:34px;font-weight:800;line-height:1;color:var(--lime);
  font-variant-numeric:tabular-nums;margin-bottom:14px;display:block;
}
.step h3{font-size:18px;color:#fff;margin-bottom:10px;font-weight:600}
.step p{font-size:15px;color:rgba(233,240,236,.74);margin:0;line-height:1.7}

/* ============ 说明卡 ============ */
.note-card{
  display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:38px;box-shadow:var(--sh-1);
}
.note-card h2{font-size:clamp(22px,2.4vw,30px);color:var(--brand);margin-bottom:14px}
.note-card .note-lead{color:var(--muted);margin-bottom:22px}
.check-list{display:grid;gap:14px;margin-bottom:26px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.8px;line-height:1.7}
.check-list i{
  color:var(--brand);background:var(--brand-soft);width:24px;height:24px;border-radius:8px;
  display:grid;place-items:center;font-size:12px;flex-shrink:0;margin-top:4px;
}
.note-card .note-img img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);
  border:1px solid var(--line);
}
.text-link{
  display:inline-flex;align-items:center;gap:7px;font-weight:600;font-size:15.5px;color:var(--brand);
}
.text-link i{font-size:12px;transition:transform .2s ease}
.text-link:hover{color:var(--orange);text-decoration:underline;text-underline-offset:3px}
.text-link:hover i{transform:translateX(3px)}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:.78fr 1.22fr;gap:48px;align-items:start}
.faq-aside{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);
}
.faq-aside h2{font-size:24px;color:var(--brand);margin-bottom:12px}
.faq-aside p{color:var(--muted);font-size:15.5px;margin-bottom:20px}
.faq-aside .aside-links{display:grid;gap:10px}
.faq-aside .aside-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 16px;border:1px solid var(--line);border-radius:12px;
  font-size:15px;font-weight:600;color:var(--text);background:#FBFAF7;
}
.faq-aside .aside-links a:hover{border-color:var(--brand);color:var(--brand);background:#fff}
.faq-aside .aside-links i{color:var(--brand);font-size:12px}
.accordion-item{
  border:1px solid var(--line);border-radius:var(--r-card)!important;
  overflow:hidden;background:#fff;margin-bottom:14px;box-shadow:var(--sh-1);
}
.accordion-button{
  position:relative;font-size:18px;font-weight:600;color:var(--text);
  background:#fff;padding:20px 24px;line-height:1.5;
}
.accordion-button:not(.collapsed){color:var(--brand);background:#FBFCF9}
.accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:4px;
  background:var(--lime);border-radius:0 4px 4px 0;
}
.accordion-button::after{
  width:16px;height:16px;background-size:16px;
  transition:transform .22s ease;
}
.accordion-button:focus{
  border-color:transparent;
  box-shadow:0 0 0 3px rgba(200,241,105,.55);
}
.accordion-body{padding:0 24px 22px;color:var(--muted);font-size:16px;line-height:1.82}

/* ============ CTA + 表单 ============ */
.cta-band{background:var(--brand);color:#fff}
.cta-band .cta-grid{display:grid;grid-template-columns:1fr .9fr;gap:52px;align-items:start}
.cta-band h2{font-size:clamp(24px,2.8vw,34px);color:#fff;margin-bottom:16px}
.cta-band .cta-lead{color:rgba(255,255,255,.8);font-size:16.5px;margin-bottom:26px;max-width:460px}
.cta-meta{display:grid;gap:12px;margin-bottom:28px}
.cta-meta li{display:flex;gap:11px;align-items:flex-start;font-size:15.5px;color:rgba(255,255,255,.86)}
.cta-meta i{color:var(--lime);margin-top:5px;font-size:13px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.5);color:#fff}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.form-card{background:#fff;border-radius:var(--r-card);padding:30px;box-shadow:var(--sh-2)}
.form-card h3{font-size:20px;color:var(--brand);margin-bottom:6px}
.form-card .form-sub{font-size:14.5px;color:var(--muted);margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--text);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;border:1px solid var(--line);border-radius:12px;
  background:#FBFAF7;font-size:15px;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field textarea{height:auto;min-height:96px;padding:12px 14px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(14,77,60,.09);
}
.field input::placeholder,.field textarea::placeholder{color:#98A49E}
.check-row{display:flex;gap:9px;align-items:flex-start;font-size:13.5px;color:var(--muted);margin:6px 0 20px}
.check-row input{width:16px;height:16px;margin-top:3px;accent-color:var(--brand);flex-shrink:0}
.form-tip{font-size:14px;color:var(--brand);font-weight:600;margin-top:14px;min-height:20px}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(233,240,236,.72);padding:72px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand{
  display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;margin-bottom:16px;
}
.footer-brand .brand-mark{background:rgba(200,241,105,.16);color:var(--lime)}
.footer-col p{font-size:14.5px;line-height:1.8;margin-bottom:10px}
.footer-col h4{font-size:15.5px;color:#fff;margin-bottom:18px;font-weight:600}
.footer-col ul{display:grid;gap:11px}
.footer-col ul a{font-size:14.5px;color:rgba(233,240,236,.72)}
.footer-col ul a:hover{color:var(--lime)}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13.5px;color:rgba(233,240,236,.55);
}

/* ============ 返回顶部 ============ */
#backTop{
  position:fixed;right:24px;bottom:26px;width:46px;height:46px;z-index:1030;
  border-radius:50%;background:#fff;border:1px solid var(--line);color:var(--brand);
  display:grid;place-items:center;cursor:pointer;box-shadow:var(--sh-1);
  opacity:0;visibility:hidden;transition:opacity .22s ease,transform .22s ease,visibility .22s;
}
#backTop.show{opacity:1;visibility:visible}
#backTop:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--sh-2)}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  :root{--sec:80px}
  .hero-grid{gap:40px}
  .compare-head,.compare-row{grid-template-columns:1fr 1fr 1.2fr;gap:18px}
  .steps{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991.98px){
  :root{--sec:72px}
  .container-x{padding:0 24px}
  .main-nav{
    position:fixed;top:74px;left:0;right:0;z-index:1039;
    flex-direction:column;align-items:stretch;gap:4px;margin:0;
    background:#fff;border-bottom:1px solid var(--line);
    padding:14px 20px 24px;box-shadow:var(--sh-2);
    max-height:calc(100vh - 74px);overflow:auto;
    transform:translateY(-14px);opacity:0;visibility:hidden;
    transition:transform .22s ease,opacity .22s ease,visibility .22s;
  }
  .main-nav.open{transform:none;opacity:1;visibility:visible}
  .main-nav a{padding:14px 12px;font-size:16px;border-radius:12px}
  .main-nav a.active{background:var(--brand-soft)}
  .main-nav a.active::after{left:12px;right:auto;width:26px;bottom:9px}
  .nav-cta-mobile{display:block}
  .nav-toggle{display:grid}
  .search-box{display:none}
  .header-actions>.btn-main{display:none}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-thumb{order:-1}
  .page-hero::after{width:300px;height:300px;right:-150px;top:-130px}
  .compare-head{display:none}
  .compare-row{grid-template-columns:1fr;gap:10px;padding:20px}
  .c-col::before{
    content:attr(data-label);display:block;font-size:12px;font-weight:700;
    color:var(--muted);letter-spacing:.04em;margin-bottom:4px;
  }
  .note-card{grid-template-columns:1fr;gap:28px;padding:28px}
  .note-card .note-img{order:-1}
  .faq-wrap{grid-template-columns:1fr;gap:30px}
  .cta-band .cta-grid{grid-template-columns:1fr;gap:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  :root{--sec:56px}
  body{font-size:16.5px}
  .container-x{padding:0 20px}
  .header-inner{height:68px;gap:12px}
  .main-nav{top:68px;max-height:calc(100vh - 68px)}
  .brand{font-size:17px}
  .brand-mark{width:32px;height:32px}
  .page-hero{padding:36px 0 52px}
  .hero-actions .btn-main,.hero-actions .btn-ghost{flex:1 1 100%}
  .steps{grid-template-columns:1fr}
  .compare-row{padding:18px 16px}
  .c-col{font-size:15px}
  .filter-bar{padding:14px}
  .chip{padding:7px 14px;font-size:13.5px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
  #backTop{right:16px;bottom:18px;width:42px;height:42px}
  .form-card{padding:22px}
}
@media (max-width:575.98px){
  .page-hero h1{font-size:27px}
  .hero-sub{font-size:16px}
  .section-head{margin-bottom:30px}
  .note-card{padding:22px}
  .faq-aside{padding:22px}
  .accordion-button{font-size:16.5px;padding:17px 18px}
  .accordion-body{padding:0 18px 20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}