/* roulang page: index */
:root{
  --green-900:#0C3B32;
  --green-700:#14614F;
  --green-500:#1F7A63;
  --green-50:#E3F0EB;
  --coral:#E2543C;
  --coral-dark:#C8432D;
  --amber:#F0A63C;
  --amber-50:#FDF1DC;
  --amber-900:#8A5A12;
  --bg:#F6F4EE;
  --card:#FFFFFF;
  --line:#E3E2DA;
  --ink:#14201D;
  --ink-2:#5C6E68;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,59,50,.06);
  --sh-2:0 10px 30px -12px rgba(12,59,50,.18);
  --sh-3:0 18px 40px -16px rgba(12,59,50,.28);
  --grad:linear-gradient(135deg,#0C3B32 0%,#14614F 55%,#1F7A63 100%);
  --sec-pad:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--green-700);text-decoration:none;transition:color .2s ease-out;}
a:hover{color:var(--green-900);text-decoration:underline;}
h1,h2,h3,h4,p,ul,ol,li,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;}
.num{font-variant-numeric:tabular-nums;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
section{padding:var(--sec-pad) 0;}
.section-tight{padding:64px 0;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:box-shadow .25s ease-out;
}
.site-header.is-scrolled{box-shadow:0 6px 20px -10px rgba(12,59,50,.24);}
.header-inner{
  height:72px;display:flex;align-items:center;gap:28px;
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:26px;height:26px;border-radius:9px;
  background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:12px;
  box-shadow:0 4px 10px -4px rgba(12,59,50,.55);
}
.brand-text{
  font-size:18px;font-weight:700;letter-spacing:.2px;
  color:var(--green-900);white-space:nowrap;
}
.main-nav{flex:1 1 auto;}
.main-nav ul{display:flex;align-items:center;gap:26px;}
.main-nav a{
  display:inline-block;padding:26px 0;
  font-size:15px;font-weight:500;color:var(--ink-2);
  border-bottom:2px solid transparent;
}
.main-nav a:hover{color:var(--green-700);text-decoration:none;}
.main-nav a.is-active{color:var(--green-900);font-weight:700;border-bottom-color:var(--green-700);}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.search-box{
  position:relative;display:flex;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  height:40px;padding:0 14px;width:250px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.search-box i{color:var(--ink-2);font-size:13px;margin-right:8px;}
.search-box input{
  border:0;outline:none;background:transparent;width:100%;
  font-size:14px;line-height:1.4;
}
.search-box input::placeholder{color:#9AA8A3;}
.search-box:focus-within{border-color:var(--green-700);box-shadow:0 0 0 3px rgba(20,97,79,.12);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--green-900);font-size:16px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;text-decoration:none;
  transition:background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out,transform .15s ease-out,box-shadow .2s ease-out;
}
.btn:hover{text-decoration:none;}
.btn:active{transform:translateY(1px);}
.btn:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
.btn-primary{background:var(--coral);color:#fff;box-shadow:0 8px 18px -10px rgba(226,84,60,.9);}
.btn-primary:hover{background:var(--coral-dark);color:#fff;}
.btn-ghost{background:transparent;color:var(--green-900);border-color:var(--green-700);}
.btn-ghost:hover{background:var(--green-50);color:var(--green-900);}
.btn-white{background:#fff;color:var(--green-900);border-color:#fff;}
.btn-white:hover{background:#fff;color:var(--green-700);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.5;pointer-events:none;}

.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;padding:16px 24px 24px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer ul{display:flex;flex-direction:column;gap:2px;margin-bottom:16px;}
.mobile-drawer ul a{
  display:block;padding:12px 4px;font-size:15px;color:var(--ink);border-radius:var(--r-sm);
}
.mobile-drawer ul a.is-active{color:var(--green-900);font-weight:700;background:var(--green-50);}
.mobile-drawer .search-box{width:100%;margin-bottom:14px;}

/* ---------- 通用排版 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--green-700);
  background:var(--green-50);border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:18px;
}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
h2{font-size:30px;line-height:1.35;font-weight:700;color:var(--ink);}
h3{font-size:21px;line-height:1.45;font-weight:700;color:var(--ink);}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:72px 0 96px;
  background:
    radial-gradient(circle at 84% 12%, rgba(240,166,60,.20), transparent 52%),
    linear-gradient(180deg,#FFFFFF 0%,#F9F7F1 100%);
}
.hero-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;}
.hero h1{font-size:clamp(28px,3.6vw,42px);line-height:1.25;font-weight:700;color:var(--green-900);}
.hero-sub{margin-top:18px;font-size:17px;color:var(--ink-2);max-width:460px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;}
.data-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--amber-50);color:var(--amber-900);
  border-radius:var(--r-pill);padding:8px 16px;
  font-size:13px;font-weight:600;
}
.data-badge i{font-size:12px;opacity:.85;}
.data-badge.white{background:#fff;border:1px solid var(--line);color:var(--ink-2);}
.data-badge.white strong{color:var(--green-700);font-weight:700;}
.hero-visual{position:relative;}
.hero-visual .kv{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  box-shadow:var(--sh-2);aspect-ratio:16/11;background:var(--grad);
}
.hero-visual .kv img{width:100%;height:100%;object-fit:cover;}
.hero-visual .kv::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(12,59,50,.62) 0%,rgba(20,97,79,.42) 55%,rgba(31,122,99,.24) 100%);
}
.kv-caption{
  position:absolute;left:28px;bottom:26px;right:28px;z-index:2;color:#fff;
}
.kv-caption h3{color:#fff;font-size:20px;}
.kv-caption p{color:rgba(255,255,255,.86);font-size:14px;margin-top:6px;}
.float-card{
  position:absolute;right:-14px;top:26px;z-index:3;
  background:#fff;border-radius:var(--r-lg);padding:16px 20px;
  box-shadow:var(--sh-2);display:flex;align-items:center;gap:14px;
  border:1px solid var(--line);
}
.float-card .score{font-size:24px;font-weight:700;color:var(--green-900);line-height:1;}
.float-card small{display:block;font-size:12px;color:var(--ink-2);margin-top:5px;}
.stars{color:var(--amber);font-size:12px;letter-spacing:1px;}

/* ---------- 时间线 ---------- */
.timeline{position:relative;margin-top:8px;}
.timeline::before{
  content:"";position:absolute;left:50%;top:8px;bottom:8px;width:2px;
  background:var(--line);transform:translateX(-1px);
}
.tl-item{display:grid;grid-template-columns:1fr 60px 1fr;align-items:center;margin-bottom:28px;}
.tl-item:last-child{margin-bottom:0;}
.tl-dot{
  grid-column:2;justify-self:center;position:relative;z-index:2;
  width:16px;height:16px;border-radius:50%;background:#fff;
  border:3px solid var(--green-700);
}
.tl-item.is-first .tl-dot{background:var(--coral);border-color:var(--coral);box-shadow:0 0 0 6px rgba(226,84,60,.14);}
.tl-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px 24px;box-shadow:var(--sh-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.tl-item.left .tl-card{grid-column:1;text-align:right;}
.tl-item.right .tl-card{grid-column:3;}
.tl-num{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:34px;height:26px;border-radius:var(--r-sm);
  background:var(--amber-50);color:var(--amber-900);
  font-size:12px;font-weight:700;margin-bottom:10px;
  font-variant-numeric:tabular-nums;
}
.tl-card h3{font-size:17px;}
.tl-card p{margin-top:8px;font-size:14px;color:var(--ink-2);}

/* ---------- 功能亮点 ---------- */
.spotlight-top{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.spotlight-bottom{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:24px;}
.spot-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.spot-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.spot-card.wide{display:grid;grid-template-columns:1fr 1fr;align-items:stretch;}
.spot-card.wide img{width:100%;height:100%;min-height:230px;object-fit:cover;}
.spot-body{padding:26px 26px 28px;}
.spot-card.wide .spot-body{display:flex;flex-direction:column;justify-content:center;}
.spot-icon{
  width:44px;height:44px;border-radius:var(--r-md);
  background:var(--green-50);color:var(--green-700);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;margin-bottom:16px;
}
.spot-body h3{font-size:19px;margin-bottom:10px;}
.spot-body p{font-size:14.5px;color:var(--ink-2);}
.spot-mini{padding:26px 24px 28px;}

/* ---------- 平台 tabs ---------- */
.platform-tabs{
  display:flex;flex-wrap:wrap;gap:8px;border:0;background:transparent;margin-bottom:26px;
}
.platform-tabs .tabs-title{float:none;}
.platform-tabs .tabs-title>a{
  display:inline-block;padding:10px 22px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);color:var(--ink-2);
  font-size:14.5px;font-weight:600;line-height:1.4;
}
.platform-tabs .tabs-title>a:hover{background:var(--green-50);color:var(--green-900);}
.platform-tabs .tabs-title.is-active>a,
.platform-tabs .tabs-title>a[aria-selected="true"]{
  background:var(--green-50);color:var(--green-900);border-color:var(--green-700);
}
.platform-tabs .tabs-title>a:focus{outline:2px solid var(--amber);outline-offset:2px;}
.tabs-panel{padding:0;background:transparent;}
.spec-table{
  width:100%;border-collapse:separate;border-spacing:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);font-size:15px;
}
.spec-table thead th{
  background:var(--green-50);color:var(--green-900);
  text-align:left;font-weight:700;font-size:14px;
  padding:14px 20px;border-bottom:1px solid var(--line);
}
.spec-table td{padding:15px 20px;border-bottom:1px solid var(--line);color:var(--ink-2);}
.spec-table tbody tr:last-child td{border-bottom:0;}
.spec-table td:first-child{color:var(--ink);font-weight:600;}

/* ---------- 对比卡 ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;margin-top:20px;}
.plan-card{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:30px 26px;box-shadow:var(--sh-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.plan-card.featured{
  border:2px solid var(--amber);
  transform:translateY(-8px);
  box-shadow:var(--sh-2);
}
.plan-card.featured:hover{transform:translateY(-12px);}
.plan-tag{
  position:absolute;right:20px;top:-13px;
  background:var(--amber);color:#4A2F05;
  font-size:12px;font-weight:700;border-radius:var(--r-pill);
  padding:5px 14px;
}
.plan-card h3{font-size:19px;}
.plan-card .plan-desc{font-size:14px;color:var(--ink-2);margin-top:8px;min-height:44px;}
.plan-card .plan-price{
  margin:18px 0 20px;font-size:15px;color:var(--green-700);
  font-weight:700;font-variant-numeric:tabular-nums;
}
.plan-list{display:flex;flex-direction:column;gap:12px;margin-bottom:26px;}
.plan-list li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);line-height:1.7;}
.plan-list li i{color:var(--green-500);font-size:13px;margin-top:6px;}

/* ---------- 数据条 ---------- */
.stats-strip{
  background:var(--grad);border-radius:var(--r-xl);
  padding:48px 44px;color:#fff;
  position:relative;overflow:hidden;
}
.stats-strip::after{
  content:"";position:absolute;right:-40px;top:-60px;width:280px;height:280px;
  background:radial-gradient(circle,rgba(240,166,60,.28),transparent 62%);
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;position:relative;z-index:2;}
.stat-item .stat-num{font-size:32px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1.2;}
.stat-item .stat-label{font-size:14px;color:rgba(255,255,255,.82);margin-top:8px;}
.stats-note{
  position:relative;z-index:2;margin-top:32px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.22);
  font-size:14.5px;color:rgba(255,255,255,.86);max-width:760px;
}

/* ---------- 最新信息 ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.news-head h2{margin-top:0;}
.link-more{font-size:14.5px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.chip{
  display:inline-block;padding:8px 16px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);color:var(--ink-2);
  font-size:13.5px;
}
.chip:hover{background:var(--green-50);color:var(--green-900);border-color:var(--green-700);text-decoration:none;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.news-thumb{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:var(--green-50);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.cat-badge{
  position:absolute;left:14px;top:14px;
  background:var(--green-50);color:var(--green-900);
  font-size:12px;font-weight:600;border-radius:6px;padding:4px 10px;
}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto;}
.news-body h3{font-size:17px;line-height:1.5;margin-bottom:10px;}
.news-body h3 a{color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body h3 a:hover{color:var(--green-700);text-decoration:none;}
.news-excerpt{
  font-size:14px;color:var(--ink-2);flex:1 1 auto;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:#8B9793;
}
.news-meta i{color:var(--green-500);}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);
}
.empty-state i{font-size:44px;color:var(--green-50);}
.empty-state p{margin:16px 0 22px;color:var(--ink-2);font-size:15px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-acc{border:0;background:transparent;}
.faq-acc .accordion-item{
  border:1px solid var(--line);border-radius:16px;background:#fff;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
}
.faq-acc .accordion-title{
  position:relative;display:block;border:0;background:#fff;
  padding:20px 56px 20px 22px;font-size:17px;font-weight:700;color:var(--ink);
  line-height:1.6;
}
.faq-acc .accordion-title:focus{outline:2px solid var(--amber);outline-offset:-2px;}
.faq-acc .accordion-title::before{
  content:"\f067";
  font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:13px;color:var(--green-700);float:none;
  transition:transform .2s ease-out;
}
.faq-acc .accordion-item.is-active .accordion-title::before{content:"\f068";}
.faq-acc .accordion-item.is-active{
  box-shadow:var(--sh-2);
  border-left:4px solid var(--amber);
}
.faq-acc .accordion-content{
  padding:0 22px 22px;border:0;background:#fff;
  font-size:15px;line-height:1.8;color:var(--ink-2);
}

/* ---------- 表单 CTA ---------- */
.cta-panel{
  background:var(--grad);border-radius:var(--r-xl);
  padding:56px 52px;color:#fff;position:relative;overflow:hidden;
  box-shadow:var(--sh-2);
}
.cta-panel::after{
  content:"";position:absolute;left:-60px;bottom:-80px;width:320px;height:320px;
  background:radial-gradient(circle,rgba(240,166,60,.22),transparent 62%);
}
.cta-grid{display:grid;grid-template-columns:6fr 6fr;gap:48px;position:relative;z-index:2;align-items:start;}
.cta-panel h2{color:#fff;font-size:28px;}
.cta-panel .cta-lead{color:rgba(255,255,255,.86);margin-top:14px;font-size:15.5px;}
.trust-list{margin-top:26px;display:flex;flex-direction:column;gap:12px;}
.trust-list li{display:flex;gap:10px;font-size:14.5px;color:rgba(255,255,255,.9);}
.trust-list li i{color:var(--amber);font-size:13px;margin-top:6px;}
.form-card{
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.22);
  border-radius:var(--r-lg);padding:26px 24px;
}
.form-card .field{margin-bottom:16px;}
.form-card label{display:block;font-size:13px;color:rgba(255,255,255,.85);margin-bottom:8px;}
.form-card input,.form-card select{
  width:100%;height:46px;border-radius:var(--r-md);
  border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.92);
  padding:0 14px;font-size:14.5px;color:var(--ink);
  outline:none;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.form-card input:focus,.form-card select:focus{
  border-color:var(--green-500);box-shadow:0 0 0 3px rgba(46,158,107,.28);
}
.form-note{font-size:12px;color:rgba(255,255,255,.72);margin-top:14px;line-height:1.7;}
.form-note a{color:#fff;text-decoration:underline;}

/* ---------- 窄 CTA 条 ---------- */
.mini-cta{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  padding:32px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--sh-1);
}
.mini-cta h3{font-size:20px;}
.mini-cta p{font-size:14.5px;color:var(--ink-2);margin-top:8px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--green-900);color:rgba(255,255,255,.78);padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);box-shadow:none;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:700;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{color:rgba(255,255,255,.78);font-size:14.5px;}
.footer-col ul a:hover{color:#fff;text-decoration:underline;}
.footer-brand p{font-size:14.5px;line-height:1.8;margin-top:16px;max-width:320px;}
.footer-note{
  margin-top:16px;font-size:13px;color:rgba(255,255,255,.6);
  border-left:2px solid rgba(240,166,60,.7);padding-left:12px;
}
.footer-cta p{font-size:14.5px;margin-bottom:18px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0 28px;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  :root{--sec-pad:72px;}
  .main-nav{display:none;}
  .search-box{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .float-card{right:12px;top:12px;}
  .spotlight-top{grid-template-columns:1fr;}
  .spotlight-bottom{grid-template-columns:1fr 1fr;}
  .plan-grid{grid-template-columns:1fr;}
  .plan-card.featured{transform:none;}
  .plan-card.featured:hover{transform:translateY(-4px);}
  .grid-3{grid-template-columns:1fr 1fr;}
  .stats-grid{grid-template-columns:1fr 1fr;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .cta-panel{padding:40px 30px;}
  .stats-strip{padding:40px 28px;}
  .timeline::before{left:11px;}
  .tl-item{grid-template-columns:24px 1fr;gap:14px;margin-bottom:20px;}
  .tl-dot{grid-column:1;justify-self:start;margin-top:6px;}
  .tl-item.left .tl-card,.tl-item.right .tl-card{grid-column:2;text-align:left;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:639px){
  :root{--sec-pad:56px;}
  .container{padding:0 16px;}
  .header-inner{height:60px;gap:14px;}
  .brand-text{font-size:16px;}
  h2{font-size:24px;}
  .hero{padding:48px 0 56px;}
  .hero-sub{font-size:15.5px;}
  .btn{height:44px;padding:0 20px;font-size:14.5px;}
  .hero-actions .btn{flex:1 1 auto;}
  .spotlight-bottom{grid-template-columns:1fr;}
  .grid-3{grid-template-columns:1fr;}
  .spot-card.wide{grid-template-columns:1fr;}
  .spot-card.wide img{min-height:180px;aspect-ratio:16/9;}
  .stats-grid{grid-template-columns:1fr 1fr;gap:22px;}
  .stat-item .stat-num{font-size:26px;}
  .cta-panel{padding:32px 20px;}
  .form-card{padding:20px 16px;}
  .mini-cta{flex-direction:column;align-items:flex-start;padding:26px 22px;}
  .news-head{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .site-footer{padding-top:52px;}
  .spec-table{font-size:14px;}
  .spec-table thead th,.spec-table td{padding:12px 14px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: article */
:root{
  --brand-900:#0C3B32;
  --brand-700:#14614F;
  --brand-500:#1F7A63;
  --brand-050:#E3F0EB;
  --coral:#E2543C;
  --coral-dark:#C8432D;
  --amber:#F0A63C;
  --amber-bg:#FDF1DC;
  --amber-text:#8A5A12;
  --bg:#F6F4EE;
  --card:#FFFFFF;
  --line:#E3E2DA;
  --text:#14201D;
  --muted:#5C6E68;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,59,50,.06);
  --sh-2:0 10px 30px -12px rgba(12,59,50,.18);
  --sh-3:0 18px 40px -16px rgba(12,59,50,.28);
  --grad:linear-gradient(135deg,#0C3B32 0%,#14614F 55%,#1F7A63 100%);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease,background-color .18s ease;}
a:hover{color:var(--brand-900);}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;}
h1,h2,h3,h4,h5{margin:0;line-height:1.3;font-weight:700;color:var(--text);}
p{margin:0;}
.num{font-variant-numeric:tabular-nums;}
.skip-link{position:absolute;left:-9999px;top:0;background:#fff;padding:10px 18px;border-radius:var(--r-pill);z-index:300;}
.skip-link:focus{left:16px;top:12px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 26px -14px rgba(12,59,50,.35);}
.header-inner{display:flex;align-items:center;gap:22px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:16px;
  box-shadow:0 8px 18px -10px rgba(12,59,50,.7);
}
.brand-text{font-size:17px;font-weight:700;color:var(--brand-900);letter-spacing:.2px;white-space:nowrap;}
.main-nav{margin-left:8px;}
.main-nav ul{display:flex;align-items:center;gap:2px;list-style:none;padding:0;margin:0;}
.main-nav a{
  position:relative;
  display:inline-block;
  padding:8px 14px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:#2B3B37;
  white-space:nowrap;
}
.main-nav a:hover{color:var(--brand-700);background:var(--brand-050);}
.main-nav a.is-active{color:var(--brand-900);font-weight:700;}
.main-nav a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:3px;border-radius:3px;background:var(--brand-500);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.nav-search{position:relative;}
.nav-search i{position:absolute;left:15px;top:50%;transform:translateY(-50%);font-size:13px;color:#8A9A95;}
.nav-search input{
  width:262px;height:42px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#F8F7F3;
  padding:0 16px 0 38px;font-size:14px;outline:none;
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.nav-search input::placeholder{color:#96A5A0;}
.nav-search input:focus{border-color:var(--brand-500);background:#fff;box-shadow:0 0 0 3px rgba(31,122,99,.16);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--brand-900);
  cursor:pointer;align-items:center;justify-content:center;font-size:16px;
}
.nav-toggle:hover{background:var(--brand-050);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--coral);color:#fff;box-shadow:0 10px 22px -12px rgba(226,84,60,.85);}
.btn-primary:hover{background:var(--coral-dark);color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -12px rgba(200,67,45,.85);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{background:transparent;border-color:var(--brand-700);color:var(--brand-700);}
.btn-outline:hover{background:var(--brand-050);color:var(--brand-900);}
.btn-light{background:#fff;color:var(--brand-900);}
.btn-light:hover{background:#EAF3EF;color:var(--brand-900);transform:translateY(-1px);}
.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff;background:transparent;}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;}

/* ---------- badges ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);font-size:12.5px;font-weight:600;line-height:1.4;}
.badge-amber{background:var(--amber-bg);color:var(--amber-text);}
.badge-green{background:var(--brand-050);color:var(--brand-700);}
.badge-ghost{background:rgba(255,255,255,.14);color:#EAF6F1;border:1px solid rgba(255,255,255,.24);}
.badge-cat{display:inline-flex;align-items:center;padding:4px 12px;border-radius:6px;background:rgba(255,255,255,.16);color:#EAF6F1;border:1px solid rgba(255,255,255,.24);font-size:12.5px;font-weight:600;}

/* ---------- mobile drawer ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(12,59,50,.42);opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s ease;z-index:110;}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;width:330px;max-width:88vw;height:100%;
  background:#fff;z-index:120;padding:22px;overflow-y:auto;
  transform:translateX(100%);transition:transform .24s ease;
  box-shadow:-16px 0 40px -20px rgba(12,59,50,.5);
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;cursor:pointer;color:var(--brand-900);}
.drawer-close:hover{background:var(--brand-050);}
.drawer-search{position:relative;margin-bottom:18px;}
.drawer-search i{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:#8A9A95;font-size:13px;}
.drawer-search input{width:100%;height:44px;border-radius:var(--r-pill);border:1px solid var(--line);background:#F8F7F3;padding:0 16px 0 38px;font-size:14px;outline:none;}
.drawer-search input:focus{border-color:var(--brand-500);background:#fff;box-shadow:0 0 0 3px rgba(31,122,99,.16);}
.drawer-nav{list-style:none;padding:0;margin:0 0 22px;}
.drawer-nav li{border-bottom:1px solid var(--line);}
.drawer-nav a{display:block;padding:14px 4px;font-size:15px;color:#2B3B37;font-weight:500;}
.drawer-nav a:hover{color:var(--brand-700);}
.drawer-nav a.is-active{color:var(--brand-900);font-weight:700;}
.drawer-cta{width:100%;}

/* ---------- article hero ---------- */
.article-hero{
  position:relative;overflow:hidden;
  background:var(--grad);
  color:#fff;
  padding:34px 0 62px;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  opacity:.2;mix-blend-mode:luminosity;
}
.article-hero::after{
  content:"";position:absolute;width:520px;height:520px;right:-140px;top:-200px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,166,60,.32) 0%,rgba(240,166,60,0) 70%);
  pointer-events:none;
}
.article-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.75);margin-bottom:22px;}
.breadcrumb a{color:rgba(255,255,255,.78);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;}
.breadcrumb .sep{color:rgba(255,255,255,.45);}
.breadcrumb .current{color:#fff;font-weight:600;}
.article-hero h1{
  font-size:clamp(26px,3.4vw,38px);
  line-height:1.35;font-weight:700;color:#fff;
  max-width:900px;margin:0 0 20px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13.5px;color:rgba(255,255,255,.82);}
.article-meta .sep-dot{width:1px;height:12px;background:rgba(255,255,255,.38);display:inline-block;}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px;}

/* ---------- layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:40px;align-items:start;
  padding:56px 0 72px;
}
.article-layout.no-toc{grid-template-columns:minmax(0,1fr);}
.article-main{min-width:0;}
.article-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:24px;
  padding:44px;
  box-shadow:var(--sh-1);
  max-width:840px;
}
.article-layout.no-toc .article-card{margin:0 auto;}

/* ---------- article body ---------- */
.article-body{font-size:16.5px;line-height:1.85;color:#1B2A26;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 20px;}
.article-body h2{
  font-size:23px;line-height:1.4;margin:44px 0 16px;padding-left:14px;position:relative;scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--brand-500);
}
.article-body h3{font-size:19px;margin:32px 0 12px;color:var(--brand-900);scroll-margin-top:96px;}
.article-body h4{font-size:17px;margin:24px 0 10px;color:var(--brand-700);}
.article-body strong{color:var(--brand-900);}
.article-body a{color:var(--brand-700);border-bottom:1px solid rgba(20,97,79,.35);}
.article-body a:hover{color:var(--brand-900);border-bottom-color:var(--brand-900);}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:1.4em;}
.article-body li{margin-bottom:8px;}
.article-body ul{list-style:none;padding-left:0;}
.article-body ul > li{position:relative;padding-left:1.4em;}
.article-body ul > li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:2px;background:var(--brand-500);
}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;border-left:4px solid var(--amber);
  background:#FDF9F0;border-radius:0 var(--r-md) var(--r-md) 0;color:#3A4A45;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:16px;margin:26px auto;}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  margin:26px 0;font-size:15px;
}
.article-body thead th{background:var(--brand-050);color:var(--brand-900);font-weight:600;text-align:left;}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);}
.article-body tbody tr:last-child td{border-bottom:none;}
.article-body code{background:#F1F0EA;padding:2px 7px;border-radius:6px;font-size:14px;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:36px 0;}
.article-body .lead{font-size:17.5px;color:#33443F;}

/* ---------- empty state ---------- */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:56px 20px;text-align:center;color:var(--muted);
}
.empty-state i{font-size:46px;color:#B9C6C1;}
.empty-state p{font-size:17px;color:var(--text);font-weight:600;}

/* ---------- toc ---------- */
.toc-card{
  position:sticky;top:96px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);
}
.toc-card h3{font-size:15px;margin:0 0 14px;color:var(--brand-900);}
.toc-list{list-style:none;padding:0;margin:0;}
.toc-list li{margin-bottom:2px;}
.toc-list a{
  display:block;padding:7px 10px 7px 12px;border-left:3px solid transparent;
  font-size:13.8px;color:#4A5C57;line-height:1.55;border-radius:0 8px 8px 0;
}
.toc-list a:hover{background:var(--brand-050);color:var(--brand-900);}
.toc-list a.is-current{border-left-color:var(--brand-500);background:var(--brand-050);color:var(--brand-900);font-weight:600;}
.toc-quick{margin-top:20px;padding-top:18px;border-top:1px solid var(--line);}
.toc-quick h4{font-size:13.5px;color:var(--muted);font-weight:600;margin:0 0 10px;}
.toc-quick ul{list-style:none;padding:0;margin:0;}
.toc-quick li{margin-bottom:8px;}
.toc-quick a{font-size:13.5px;color:var(--brand-700);}
.toc-quick a:hover{text-decoration:underline;}
.toc-mobile{
  display:none;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);margin-bottom:18px;overflow:hidden;
}
.toc-mobile-toggle{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  padding:16px 20px;background:none;border:none;cursor:pointer;
  font-size:15px;font-weight:600;color:var(--brand-900);
}
.toc-mobile-toggle i{transition:transform .2s ease;font-size:13px;color:var(--muted);}
.toc-mobile.is-open .toc-mobile-toggle i{transform:rotate(180deg);}
.toc-mobile .toc-list{padding:0 20px 16px;display:none;}
.toc-mobile.is-open .toc-list{display:block;}

/* ---------- article extra ---------- */
.article-extra{max-width:840px;margin-top:34px;}
.article-layout.no-toc .article-extra{margin-left:auto;margin-right:auto;}
.tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:30px;}
.tags .tags-label{font-size:13.5px;color:var(--muted);font-weight:600;}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--r-pill);
  background:var(--brand-050);color:var(--brand-700);font-size:13px;font-weight:500;
}
.tag:hover{background:#D3E8DF;color:var(--brand-900);}
.pn-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:34px;}
.pn-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px 22px;box-shadow:var(--sh-1);text-decoration:none;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pn-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D5DED9;}
.pn-card .pn-dir{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;color:var(--coral);margin-bottom:10px;}
.pn-card .pn-title{
  font-size:15.5px;font-weight:600;color:var(--text);line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.pn-card:hover .pn-title{color:var(--brand-700);}
.pn-card.is-next{text-align:right;}
.pn-card.is-next .pn-dir{justify-content:flex-end;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px;}
.section-head h2{font-size:22px;}
.section-head .more{font-size:14px;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px;}
.section-head .more:hover{text-decoration:underline;}
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.rec-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);text-decoration:none;
  transition:transform .2s ease,box-shadow .2s ease;
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.rec-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--grad);}
.rec-thumb img{width:100%;height:100%;object-fit:cover;}
.rec-body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:10px;}
.rec-body .badge-green{align-self:flex-start;}
.rec-title{
  font-size:15.5px;font-weight:600;line-height:1.6;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rec-card:hover .rec-title{color:var(--brand-700);}
.rec-desc{
  font-size:13.5px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rec-date{font-size:12.5px;color:#8A9A95;display:inline-flex;align-items:center;gap:6px;}
.article-actions{margin-top:32px;display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- cta strip ---------- */
.cta-section{padding-bottom:8px;}
.cta-strip{
  position:relative;overflow:hidden;
  background:var(--grad);border-radius:var(--r-xl);color:#fff;
  padding:34px 40px;display:flex;align-items:center;justify-content:space-between;gap:26px;
  box-shadow:var(--sh-2);
}
.cta-strip::after{
  content:"";position:absolute;width:360px;height:360px;right:-120px;bottom:-200px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,166,60,.3) 0%,rgba(240,166,60,0) 70%);
}
.cta-strip .cta-text{position:relative;z-index:2;}
.cta-strip h2{color:#fff;font-size:22px;margin-bottom:8px;}
.cta-strip p{color:rgba(255,255,255,.82);font-size:14.5px;}
.cta-strip .cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{background:#0A322B;color:#D7E6E0;padding:64px 0 0;margin-top:80px;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.25fr;gap:36px;}
.footer-col h4{font-size:15px;color:#fff;margin:0 0 16px;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:#B7CFC7;font-size:14px;}
.footer-col a:hover{color:#fff;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{font-size:14px;color:#B7CFC7;line-height:1.8;margin-bottom:12px;}
.footer-note{font-size:12.5px;color:#8FAFA6;}
.footer-cta p{font-size:14px;color:#B7CFC7;margin-bottom:16px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:52px;padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#8FAFA6;
}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .main-nav a{padding:8px 10px;font-size:14.5px;}
  .nav-search input{width:200px;}
}
@media (max-width:1023px){
  .main-nav,.nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;padding:40px 0 56px;}
  .article-side{display:none;}
  .toc-mobile{display:block;}
  .article-card{padding:30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:768px){
  .header-inner{height:62px;gap:12px;}
  .brand-mark{width:34px;height:34px;border-radius:10px;font-size:14px;}
  .brand-text{font-size:15.5px;}
  .article-hero{padding:26px 0 46px;}
  .article-card{padding:22px;border-radius:20px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:20px;margin:34px 0 14px;}
  .article-body h3{font-size:17.5px;}
  .rec-grid{grid-template-columns:1fr;}
  .pn-grid{grid-template-columns:1fr;}
  .pn-card.is-next{text-align:left;}
  .pn-card.is-next .pn-dir{justify-content:flex-start;}
  .cta-strip{flex-direction:column;align-items:flex-start;padding:28px 24px;border-radius:22px;}
  .rec-thumb img{aspect-ratio:16/9;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .article-hero h1{font-size:24px;}
  .btn{height:44px;padding:0 20px;font-size:14.5px;}
  .article-body table{font-size:14px;}
  .article-body th,.article-body td{padding:10px 12px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --green-900:#0C3B32;
  --green-700:#14614F;
  --green-500:#1F7A63;
  --green-050:#E3F0EB;
  --coral:#E2543C;
  --coral-dark:#C8432D;
  --amber:#F0A63C;
  --amber-050:#FDF1DC;
  --amber-900:#8A5A12;
  --bg:#F6F4EE;
  --card:#FFFFFF;
  --line:#E3E2DA;
  --text:#14201D;
  --muted:#5C6E68;
  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:20px;
  --radius-xl:28px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(12,59,50,.06);
  --shadow-2:0 10px 30px -12px rgba(12,59,50,.18);
  --shadow-3:0 18px 40px -16px rgba(12,59,50,.28);
  --grad-brand:linear-gradient(135deg,#0C3B32 0%,#14614F 55%,#1F7A63 100%);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;}
img{max-width:100%;display:block;object-fit:cover;}
a{color:var(--green-700);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--green-500);}
button{font-family:inherit;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-white{background:#fff;}
.tabular{font-variant-numeric:tabular-nums;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(12,59,50,.06);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 30px -16px rgba(12,59,50,.28);}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:17px;box-shadow:var(--shadow-1);
}
.brand-text{font-size:17px;font-weight:700;color:var(--green-900);letter-spacing:.2px;white-space:nowrap;}
.main-nav{flex:1 1 auto;}
.main-nav ul{display:flex;justify-content:center;align-items:center;gap:4px;list-style:none;margin:0;}
.main-nav a{
  position:relative;display:block;
  padding:9px 14px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:500;color:var(--green-900);text-decoration:none;
  transition:background .18s ease,color .18s ease;
}
.main-nav a:hover{background:var(--green-050);color:var(--green-900);}
.main-nav a.is-active{font-weight:700;background:var(--green-050);color:var(--green-900);}
.main-nav a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--green-700);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;
  height:42px;padding:0 16px;width:250px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-pill);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box i{font-size:13px;color:var(--muted);}
.search-box input{
  width:100%;height:40px;border:0;outline:0;background:transparent;
  font-size:14px;color:var(--text);font-family:inherit;
}
.search-box input::placeholder{color:#9AAAA4;}
.search-box:focus-within{border-color:var(--green-700);box-shadow:0 0 0 3px rgba(20,97,79,.13);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--green-900);
  align-items:center;justify-content:center;cursor:pointer;
}
.mobile-drawer{
  position:fixed;left:0;right:0;top:60px;z-index:70;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-2);
  padding:20px 24px 28px;
  max-height:calc(100vh - 60px);overflow-y:auto;
}
.mobile-drawer[hidden]{display:none;}
.drawer-nav{list-style:none;margin:16px 0;display:grid;gap:6px;}
.drawer-nav a{
  display:block;padding:12px 14px;border-radius:12px;
  color:var(--green-900);font-weight:600;font-size:15px;text-decoration:none;
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:var(--green-050);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;text-decoration:none;
  transition:background .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--coral);color:#fff;box-shadow:0 12px 24px -14px rgba(226,84,60,.85);}
.btn-primary:hover{background:var(--coral-dark);color:#fff;box-shadow:0 16px 30px -14px rgba(200,67,45,.9);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border-color:var(--green-700);color:var(--green-900);}
.btn-ghost:hover{background:var(--green-050);color:var(--green-900);}
.btn-ghost:active{transform:translateY(1px);}
.btn-light{background:#fff;color:var(--green-900);border-color:rgba(255,255,255,.5);}
.btn-light:hover{background:#fff;color:var(--green-900);}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
.btn[disabled]{opacity:.5;cursor:not-allowed;}

/* ============ 分类 Hero ============ */
.cat-hero{padding:24px 0 0;}
.cat-hero-inner{
  position:relative;overflow:hidden;
  border-radius:var(--radius-xl);
  padding:56px 48px;
  color:#fff;
  background:var(--grad-brand);
}
.cat-hero-inner::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(115deg,rgba(12,59,50,.94) 0%,rgba(12,59,50,.76) 48%,rgba(31,122,99,.58) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.cat-hero-inner::after{
  content:"";position:absolute;right:-90px;top:-120px;width:440px;height:440px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,166,60,.28),rgba(240,166,60,0) 68%);
  pointer-events:none;
}
.cat-hero-content{position:relative;z-index:1;max-width:760px;}
.hero-eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.14em;
  color:#FDF1DC;background:rgba(253,241,220,.14);
  border:1px solid rgba(253,241,220,.32);
  border-radius:6px;padding:5px 12px;margin-bottom:18px;
}
.cat-hero h1{
  font-size:clamp(28px,4vw,42px);
  line-height:1.28;font-weight:700;color:#fff;margin-bottom:16px;
}
.cat-hero .hero-sub{
  font-size:16px;line-height:1.8;color:rgba(255,255,255,.86);
  max-width:620px;margin-bottom:26px;
}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.data-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:var(--radius-pill);
  font-size:13px;font-weight:600;font-variant-numeric:tabular-nums;
  background:var(--amber-050);color:var(--amber-900);
}
.data-badge b{font-weight:700;}
.cat-hero .data-badge{
  background:rgba(255,255,255,.14);color:#FDF1DC;
  border:1px solid rgba(253,241,220,.3);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:22px 0 0;font-size:13px;color:var(--muted);
}
.breadcrumb a{color:var(--muted);text-decoration:none;}
.breadcrumb a:hover{color:var(--green-700);text-decoration:underline;}
.breadcrumb .sep{color:#B6C0BB;}
.breadcrumb .current{color:var(--green-900);font-weight:600;}

/* ============ 通用板块标题 ============ */
.section-head{max-width:720px;margin-bottom:36px;}
.section-head h2{
  font-size:clamp(24px,3vw,30px);line-height:1.34;font-weight:700;
  color:var(--green-900);margin-bottom:12px;
}
.section-head p{font-size:16px;line-height:1.8;color:var(--muted);}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.12em;
  color:var(--green-700);background:var(--green-050);
  border-radius:6px;padding:5px 10px;margin-bottom:14px;
}

/* ============ 平台切换 Tabs ============ */
.platform-tabs{
  display:flex;flex-wrap:wrap;gap:10px;
  list-style:none;margin:0 0 24px;
  border:0;border-bottom:0;background:transparent;
}
.platform-tabs .tabs-title{float:none;}
.platform-tabs .tabs-title > a{
  display:block;padding:10px 22px;margin:0;
  border:1px solid var(--line);border-radius:var(--radius-pill);
  background:#fff;color:var(--muted);
  font-size:15px;font-weight:600;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.platform-tabs .tabs-title > a:hover{color:var(--green-900);border-color:var(--green-500);background:var(--green-050);}
.platform-tabs .tabs-title > a[aria-selected="true"]{
  background:var(--green-900);border-color:var(--green-900);color:#fff;
}
.tabs-content{border:0;background:transparent;margin:0;}
.tabs-content .tabs-panel{padding:0;}
.platform-card{
  display:grid;grid-template-columns:0.85fr 1.15fr;gap:0;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-1);
  overflow:hidden;
}
.platform-media{background:var(--green-050);min-height:100%;}
.platform-media img{width:100%;height:100%;min-height:260px;object-fit:cover;}
.platform-body{padding:32px 34px;}
.platform-body h3{font-size:21px;font-weight:700;color:var(--green-900);margin-bottom:10px;}
.platform-body > p{font-size:15px;line-height:1.85;color:var(--muted);margin-bottom:20px;}
.tag{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.04em;
  background:var(--green-050);color:var(--green-900);
  border-radius:6px;padding:4px 10px;margin-bottom:14px;
}
.check-list{list-style:none;display:grid;gap:10px;margin-bottom:26px;}
.check-list li{display:flex;gap:10px;font-size:15px;line-height:1.75;color:var(--muted);}
.check-list li i{color:var(--green-500);font-size:12px;margin-top:8px;flex:0 0 auto;}
.check-list li b{color:var(--text);font-weight:600;}

/* ============ 侧栏 ============ */
.sidebar-inner{
  position:sticky;top:96px;
  display:grid;gap:20px;
  align-content:start;
}
.side-card{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-1);
  padding:24px;
}
.side-card h3{font-size:16px;font-weight:700;color:var(--green-900);margin-bottom:12px;}
.side-card p{font-size:14px;line-height:1.8;color:var(--muted);margin-bottom:16px;}
.side-nav{list-style:none;display:grid;gap:2px;}
.side-nav a{
  display:flex;align-items:center;gap:8px;
  padding:9px 10px;border-radius:10px;
  font-size:14px;color:var(--muted);text-decoration:none;
  transition:background .18s ease,color .18s ease;
}
.side-nav a:hover{background:var(--green-050);color:var(--green-900);}
.side-nav a i{font-size:11px;color:var(--green-500);}
.side-nav a.is-current{background:var(--green-050);color:var(--green-900);font-weight:700;}

/* ============ 步骤流程 ============ */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;}
.step{
  position:relative;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-1);
  padding:24px 20px;
  transition:box-shadow .22s ease,transform .22s ease;
}
.step:hover{box-shadow:var(--shadow-2);transform:translateY(-4px);}
.step-num{
  width:34px;height:34px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:var(--amber-050);color:var(--amber-900);
  font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;
  margin-bottom:14px;
}
.step:first-child .step-num{background:var(--coral);color:#fff;}
.step h3{font-size:16px;font-weight:700;color:var(--green-900);margin-bottom:8px;}
.step p{font-size:14px;line-height:1.75;color:var(--muted);}

/* ============ 对照表 ============ */
.table-wrap{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-1);
  overflow-x:auto;
}
table.spec-table{
  width:100%;min-width:720px;
  border-collapse:collapse;margin:0;
  font-size:15px;background:transparent;
}
table.spec-table thead th{
  background:var(--green-050);color:var(--green-900);
  font-size:14px;font-weight:700;text-align:left;
  padding:15px 20px;border:0;
}
table.spec-table tbody td{
  padding:16px 20px;border-top:1px solid var(--line);
  color:var(--muted);vertical-align:top;
  font-variant-numeric:tabular-nums;
}
table.spec-table tbody td:first-child{color:var(--green-900);font-weight:600;}
table.spec-table tbody tr:hover{background:#FBFBF7;}

/* ============ 图文核对区 ============ */
.split{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
}
.split-media{
  border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-2);
  background:var(--green-050);
}
.split-media img{width:100%;height:340px;object-fit:cover;}
.split-body h2{font-size:clamp(23px,3vw,29px);line-height:1.34;font-weight:700;color:var(--green-900);margin-bottom:14px;}
.split-body > p{font-size:16px;line-height:1.85;color:var(--muted);margin-bottom:22px;}
.point-list{list-style:none;display:grid;gap:14px;}
.point-list li{
  display:flex;gap:14px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:16px 18px;box-shadow:var(--shadow-1);
}
.point-list .point-icon{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:var(--green-050);color:var(--green-700);
  display:flex;align-items:center;justify-content:center;font-size:14px;
}
.point-list strong{display:block;font-size:15px;color:var(--green-900);margin-bottom:4px;}
.point-list span{font-size:14px;line-height:1.7;color:var(--muted);}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:box-shadow .2s ease;
}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;
  font-size:17px;font-weight:700;color:var(--green-900);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:20px;font-weight:600;color:var(--green-700);
  transition:transform .2s ease;flex:0 0 auto;
}
.faq-item[open]{box-shadow:inset 4px 0 0 var(--amber),var(--shadow-1);}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-body{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--muted);}

/* ============ CTA ============ */
.cta-card{
  position:relative;overflow:hidden;
  background:var(--grad-brand);color:#fff;
  border-radius:var(--radius-xl);
  padding:48px;
  display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center;
}
.cta-card::after{
  content:"";position:absolute;left:-120px;bottom:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,166,60,.26),rgba(240,166,60,0) 70%);
  pointer-events:none;
}
.cta-card > *{position:relative;z-index:1;}
.cta-card h2{font-size:clamp(23px,3vw,30px);line-height:1.32;font-weight:700;color:#fff;margin-bottom:12px;}
.cta-card p.lead{font-size:15px;line-height:1.85;color:rgba(255,255,255,.82);margin-bottom:20px;}
.trust-list{list-style:none;display:grid;gap:10px;}
.trust-list li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.86);}
.trust-list li i{color:var(--amber);font-size:12px;margin-top:7px;}
.cta-actions{display:flex;flex-direction:column;gap:12px;}
.cta-note{font-size:12px;color:rgba(255,255,255,.66);line-height:1.7;}

/* ============ 页脚 ============ */
.site-footer{background:#0A2F28;color:rgba(255,255,255,.78);padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:36px;}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col ul{list-style:none;display:grid;gap:10px;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.74);text-decoration:none;}
.footer-col ul a:hover{color:#fff;text-decoration:underline;}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);margin-bottom:12px;max-width:340px;}
.footer-note{font-size:12.5px;color:rgba(255,255,255,.55);}
.footer-cta p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);margin-bottom:16px;max-width:280px;}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1100px){
  .search-box{width:200px;}
  .main-nav a{padding:9px 11px;font-size:14.5px;}
}
@media (max-width:1023px){
  .main-nav,.header-actions .search-box{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{justify-content:space-between;}
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .split{grid-template-columns:1fr;gap:32px;}
  .split-media img{height:280px;}
  .cta-card{grid-template-columns:1fr;padding:38px 30px;gap:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .sidebar-inner{position:static;}
  .platform-card{grid-template-columns:1fr;}
  .platform-media img{min-height:200px;height:220px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .header-inner{height:60px;}
  .brand-text{font-size:15.5px;}
  .brand-mark{width:34px;height:34px;border-radius:10px;font-size:15px;}
  .mobile-drawer{top:60px;padding:18px 16px 24px;}
  .section{padding:56px 0;}
  .section-tight{padding:44px 0;}
  .cat-hero{padding:16px 0 0;}
  .cat-hero-inner{padding:32px 22px;border-radius:22px;}
  .cat-hero h1{font-size:26px;}
  .cat-hero .hero-sub{font-size:15px;}
  .hero-actions .btn{width:100%;}
  .steps{grid-template-columns:1fr;}
  .platform-body{padding:24px 20px;}
  .platform-body h3{font-size:19px;}
  .cta-card{padding:30px 22px;border-radius:22px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .faq-item summary{font-size:16px;padding:18px 18px;}
  .faq-body{padding:0 18px 18px;}
  .split-media img{height:220px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category2 */
:root{
  --green-900:#0C3B32;
  --green-700:#14614F;
  --green-500:#1F7A63;
  --green-100:#E3F0EB;
  --coral:#E2543C;
  --coral-dark:#C8432D;
  --amber:#F0A63C;
  --amber-100:#FDF1DC;
  --amber-900:#8A5A12;
  --bg:#F6F4EE;
  --card:#FFFFFF;
  --line:#E3E2DA;
  --text:#14201D;
  --muted:#5C6E68;
  --success:#2E9E6B;
  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:20px;
  --radius-xl:28px;
  --pill:999px;
  --shadow-1:0 1px 2px rgba(12,59,50,.06);
  --shadow-2:0 10px 30px -12px rgba(12,59,50,.18);
  --shadow-3:0 18px 40px -16px rgba(12,59,50,.28);
  --container:1200px;
  --grad:linear-gradient(135deg,#0C3B32 0%,#14614F 55%,#1F7A63 100%);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--green-700);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--coral);}
h1,h2,h3,h4{line-height:1.35;margin:0;font-weight:700;color:var(--text);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:none;padding:0;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.tnum{font-variant-numeric:tabular-nums;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 22px -14px rgba(12,59,50,.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;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;background:var(--grad);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:15px;
  box-shadow:0 6px 16px -8px rgba(12,59,50,.6);
}
.brand-text{font-size:17px;font-weight:700;color:var(--green-900);letter-spacing:.2px;white-space:nowrap;}
.brand:hover .brand-text{color:var(--green-700);}
.main-nav{flex:1 1 auto;}
.main-nav ul{display:flex;align-items:center;gap:6px;}
.main-nav a{
  display:block;position:relative;padding:10px 14px;border-radius:var(--radius-sm);
  font-size:15px;color:var(--muted);font-weight:500;
}
.main-nav a:hover{color:var(--green-700);background:var(--green-100);}
.main-nav a.is-active{color:var(--green-900);font-weight:700;}
.main-nav a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  border-radius:3px;background:var(--green-500);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.search-box{
  display:flex;align-items:center;gap:8px;height:42px;width:270px;
  padding:0 16px;border:1px solid var(--line);border-radius:var(--pill);background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{border-color:var(--green-500);box-shadow:0 0 0 3px rgba(31,122,99,.14);}
.search-box i{color:var(--muted);font-size:14px;}
.search-box input{border:none;outline:none;background:transparent;width:100%;font-size:14px;}
.search-box input::placeholder{color:#9AA8A3;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--radius-md);
  border:1px solid var(--line);color:var(--green-900);font-size:17px;
}
.nav-toggle:hover{border-color:var(--green-500);color:var(--green-700);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--pill);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .15s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--coral);color:#fff;box-shadow:0 10px 24px -14px rgba(226,84,60,.85);}
.btn-primary:hover{background:var(--coral-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{border:1px solid var(--green-700);color:var(--green-700);background:transparent;}
.btn-ghost:hover{background:var(--green-100);color:var(--green-900);}
.btn-ghost-light{border:1px solid rgba(255,255,255,.6);color:#fff;background:rgba(255,255,255,.08);}
.btn-ghost-light:hover{background:rgba(255,255,255,.2);color:#fff;}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}

/* ============ 移动抽屉 ============ */
.drawer-overlay{
  position:fixed;inset:0;background:rgba(12,59,50,.45);opacity:0;visibility:hidden;
  transition:opacity .22s ease,visibility .22s ease;z-index:90;
}
.drawer-overlay.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;height:100%;width:82%;max-width:340px;z-index:100;
  background:#fff;padding:24px 20px;transform:translateX(100%);
  transition:transform .25s ease-out;overflow-y:auto;
  display:flex;flex-direction:column;gap:18px;
}
.mobile-drawer.is-open{transform:translateX(0);}
.mobile-drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;}
.mobile-drawer .drawer-close{width:38px;height:38px;border-radius:var(--radius-md);border:1px solid var(--line);color:var(--green-900);}
.mobile-drawer nav ul{display:flex;flex-direction:column;gap:4px;}
.mobile-drawer nav a{
  display:block;padding:12px 14px;border-radius:var(--radius-md);font-size:15px;color:var(--text);
}
.mobile-drawer nav a.is-active{background:var(--green-100);color:var(--green-900);font-weight:700;}
.mobile-drawer .search-box{width:100%;}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);}
.breadcrumb a{color:rgba(255,255,255,.82);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb span.sep{opacity:.6;}
.breadcrumb .current{color:#fff;font-weight:600;}

/* ============ 分类首屏 ============ */
.page-hero{padding:32px 0 8px;}
.hero-card{
  position:relative;overflow:hidden;border-radius:var(--radius-xl);
  padding:52px 48px 56px;min-height:340px;color:#fff;
  background-image:linear-gradient(120deg,rgba(12,59,50,.94) 0%,rgba(20,97,79,.86) 52%,rgba(31,122,99,.7) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  box-shadow:var(--shadow-2);
  display:flex;flex-direction:column;justify-content:center;gap:20px;
}
.hero-card::after{
  content:"";position:absolute;width:420px;height:420px;right:-120px;top:-160px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,166,60,.28) 0%,rgba(240,166,60,0) 68%);
  pointer-events:none;
}
.hero-card > *{position:relative;z-index:2;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;align-self:flex-start;
  padding:6px 14px;border-radius:var(--pill);font-size:13px;font-weight:600;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);color:#fff;
}
.hero-card h1{font-size:clamp(28px,4vw,42px);line-height:1.25;color:#fff;max-width:20em;}
.hero-sub{font-size:16px;color:rgba(255,255,255,.86);max-width:38em;}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;}
.data-badge{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:var(--pill);
  background:var(--amber-100);color:var(--amber-900);font-size:13px;font-weight:600;
}
.data-badge i{font-size:12px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:4px;}

/* ============ 通用板块标题 ============ */
.sec-head{margin-bottom:40px;max-width:46em;}
.sec-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:600;color:var(--green-700);
  background:var(--green-100);padding:5px 12px;border-radius:var(--radius-sm);margin-bottom:12px;
}
.sec-head h2{font-size:clamp(24px,3vw,30px);}
.sec-head p{margin-top:12px;color:var(--muted);font-size:15px;}

/* ============ 布局 ============ */
.layout-row{margin-left:-12px;margin-right:-12px;}
.layout-row > .cell{padding-left:12px;padding-right:12px;}
.stack-lg{display:flex;flex-direction:column;gap:24px;}

/* ============ 时间线 ============ */
.timeline{position:relative;padding-left:38px;}
.timeline::before{
  content:"";position:absolute;left:11px;top:10px;bottom:10px;width:2px;
  background:linear-gradient(180deg,var(--green-500) 0%,rgba(20,97,79,.22) 100%);
  border-radius:2px;
}
.tl-item{position:relative;padding-bottom:24px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;left:-33px;top:26px;width:12px;height:12px;border-radius:50%;
  background:#fff;border:2px solid var(--green-500);box-shadow:0 0 0 4px rgba(31,122,99,.1);
}
.tl-item.is-current .tl-dot{background:var(--coral);border-color:var(--coral);box-shadow:0 0 0 5px rgba(226,84,60,.16);}
.tl-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px 26px 22px;box-shadow:var(--shadow-1);
  transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.tl-card:hover{box-shadow:var(--shadow-2);transform:translateY(-4px);border-color:#D5DED8;}
.tl-item.is-current .tl-card{border-color:rgba(226,84,60,.4);}
.tl-head{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:14px;}
.ver-badge{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:var(--radius-sm);
  background:var(--green-100);color:var(--green-900);font-size:13px;font-weight:700;
  font-variant-numeric:tabular-nums;letter-spacing:.4px;
}
.tl-item.is-current .ver-badge{background:var(--coral);color:#fff;}
.tl-date{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}
.chip{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:var(--pill);
  font-size:12px;font-weight:600;background:var(--amber-100);color:var(--amber-900);
}
.chip.chip-soft{background:#fff;border:1px solid var(--line);color:var(--muted);}
.tl-card h3{font-size:19px;margin-bottom:12px;}
.tl-list{display:flex;flex-direction:column;gap:10px;}
.tl-list li{position:relative;padding-left:22px;font-size:15px;color:#33443F;line-height:1.75;}
.tl-list li::before{
  content:"";position:absolute;left:4px;top:11px;width:7px;height:7px;border-radius:2px;
  background:var(--green-500);
}
.tl-foot{margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);}
.link-more{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:8px;}
.link-more i{font-size:12px;transition:transform .2s ease;}
.link-more:hover i{transform:translateX(3px);}

/* ============ 侧栏 ============ */
.side-col{position:relative;}
.sidebar{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow-1);
}
.side-card h3{font-size:16px;margin-bottom:16px;display:flex;align-items:center;gap:8px;}
.side-card h3 i{color:var(--green-500);font-size:14px;}
.ver-index{display:flex;flex-direction:column;gap:2px;}
.ver-index a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:var(--radius-md);font-size:14px;color:var(--muted);
  border-left:3px solid transparent;
}
.ver-index a:hover{background:var(--green-100);color:var(--green-900);border-left-color:var(--green-500);}
.ver-index a .vi-ver{font-weight:600;color:var(--green-900);font-variant-numeric:tabular-nums;}
.ver-index a .vi-date{font-size:12px;color:#93A29C;font-variant-numeric:tabular-nums;}
.side-cta{background:var(--grad);border:none;color:#fff;box-shadow:var(--shadow-2);}
.side-cta h3{color:#fff;}
.side-cta h3 i{color:var(--amber);}
.side-cta p{font-size:14px;color:rgba(255,255,255,.84);margin-bottom:16px;}
.rel-list{display:flex;flex-direction:column;gap:2px;}
.rel-list a{
  display:flex;align-items:center;gap:10px;padding:10px 8px;border-radius:var(--radius-sm);
  font-size:14px;color:var(--muted);
}
.rel-list a:hover{color:var(--green-900);background:var(--green-100);}
.rel-list i{color:var(--green-500);font-size:11px;}

/* ============ 对比卡 ============ */
.compare-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.compare-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-xl);
  padding:32px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;gap:18px;
  transition:box-shadow .22s ease,transform .22s ease;
}
.compare-card:hover{box-shadow:var(--shadow-2);transform:translateY(-4px);}
.compare-card.is-featured{border:2px solid var(--amber);position:relative;}
.compare-card.is-featured::before{
  content:"推荐";position:absolute;top:-13px;right:24px;
  background:var(--amber);color:#4A2F06;font-size:12px;font-weight:700;
  padding:4px 12px;border-radius:var(--pill);
}
.compare-card h3{font-size:20px;}
.compare-card .cc-sub{font-size:14px;color:var(--muted);}
.check-list{display:flex;flex-direction:column;gap:12px;}
.check-list li{position:relative;padding-left:26px;font-size:15px;color:#33443F;}
.check-list li i{
  position:absolute;left:0;top:5px;color:var(--success);font-size:13px;
}
.compare-card .cc-foot{margin-top:auto;padding-top:8px;}

/* ============ 准备清单 ============ */
.prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.prep-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px;box-shadow:var(--shadow-1);transition:box-shadow .22s ease,transform .22s ease;
}
.prep-card:hover{box-shadow:var(--shadow-2);transform:translateY(-4px);}
.prep-icon{
  width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:var(--green-100);color:var(--green-700);font-size:19px;margin-bottom:18px;
}
.prep-card h3{font-size:17px;margin-bottom:10px;}
.prep-card p{font-size:14.5px;color:var(--muted);}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);
  box-shadow:var(--shadow-1);overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item:hover{box-shadow:var(--shadow-2);border-color:#D5DED8;}
.faq-item.is-open{border-color:var(--green-500);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;font-size:17px;font-weight:600;color:var(--text);
  position:relative;
}
.faq-item.is-open .faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;border-radius:0 4px 4px 0;background:var(--amber);
}
.faq-q .icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--green-100);color:var(--green-700);
  display:flex;align-items:center;justify-content:center;font-size:13px;transition:transform .25s ease;
}
.faq-item.is-open .faq-q .icon{transform:rotate(45deg);background:var(--coral);color:#fff;}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .26s ease-out;}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}
.faq-a > div{overflow:hidden;}
.faq-a p{padding:0 24px 22px;font-size:15px;color:var(--muted);line-height:1.85;}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-xl);padding:56px 48px;
  background:var(--grad);color:#fff;box-shadow:var(--shadow-2);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;width:380px;height:380px;right:-100px;bottom:-180px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,166,60,.26) 0%,rgba(240,166,60,0) 70%);
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,28px);}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.85);font-size:15px;max-width:44em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--green-900);color:rgba(255,255,255,.78);padding:72px 0 28px;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.74);}
.footer-col a:hover{color:#fff;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.7);max-width:30em;}
.footer-note{margin-top:12px;font-size:12.5px;color:rgba(255,255,255,.5);}
.footer-cta p{font-size:14px;color:rgba(255,255,255,.72);margin-bottom:18px;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .section{padding:72px 0;}
  .main-nav{display:none;}
  .search-box{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .header-inner{gap:16px;}
  .header-actions{margin-left:auto;}
  .sidebar{position:static;}
  .prep-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .hero-card{padding:36px 24px 40px;border-radius:var(--radius-lg);min-height:0;}
  .compare-grid{grid-template-columns:1fr;}
  .prep-grid{grid-template-columns:1fr;}
  .cta-band{padding:36px 24px;}
  .brand-text{font-size:16px;}
}
@media (max-width:519px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .hero-card h1{font-size:26px;}
  .timeline{padding-left:30px;}
  .tl-dot{left:-26px;top:24px;width:11px;height:11px;}
  .tl-card{padding:20px 18px;}
  .faq-q{padding:16px 18px;font-size:16px;}
  .faq-a p{padding:0 18px 18px;}
  .footer-grid{grid-template-columns:1fr;}
  .btn{width:100%;}
  .cta-actions{width:100%;}
  .btn-sm{width:auto;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category3 */
:root{
  --brand-900:#0C3B32;
  --brand-700:#14614F;
  --brand-500:#1F7A63;
  --brand-100:#E3F0EB;
  --coral:#E2543C;
  --coral-hover:#C8432D;
  --amber:#F0A63C;
  --amber-100:#FDF1DC;
  --amber-800:#8A5A12;
  --bg:#F6F4EE;
  --card:#FFFFFF;
  --line:#E3E2DA;
  --text:#14201D;
  --muted:#5C6E68;
  --ok:#2E9E6B;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(12,59,50,.06);
  --sh2:0 10px 30px -12px rgba(12,59,50,.18);
  --sh3:0 18px 40px -16px rgba(12,59,50,.28);
  --grad:linear-gradient(135deg,#0C3B32 0%,#14614F 55%,#1F7A63 100%);
  --gap:24px;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--coral);}
h1,h2,h3,h4,p,ul,ol,dl,dd{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}

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

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh1);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px -14px rgba(12,59,50,.35);}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand-mark{
  width:28px;height:28px;
  border-radius:9px;
  background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:13px;
  box-shadow:var(--sh1);
}
.brand-text{
  font-size:17px;
  font-weight:700;
  color:var(--brand-900);
  letter-spacing:.2px;
  white-space:nowrap;
}
.main-nav{flex:1 1 auto;}
.main-nav ul{
  display:flex;
  align-items:center;
  gap:6px;
}
.main-nav a{
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  color:var(--muted);
  border-radius:var(--r-sm);
  border-bottom:2px solid transparent;
  transition:color .2s ease,border-color .2s ease,background-color .2s ease;
}
.main-nav a:hover{color:var(--brand-700);background:var(--brand-100);}
.main-nav a.is-active{
  color:var(--brand-900);
  font-weight:700;
  border-bottom-color:var(--brand-500);
  border-radius:var(--r-sm) var(--r-sm) 0 0;
}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.nav-search{
  position:relative;
  display:flex;
  align-items:center;
  width:260px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:0 14px;
  height:42px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search i{color:var(--muted);font-size:13px;}
.nav-search input{
  border:0;
  outline:none;
  background:transparent;
  width:100%;
  padding:0 8px;
  font-size:14px;
}
.nav-search input::placeholder{color:#9AA8A3;}
.nav-search:focus-within{
  border-color:var(--brand-500);
  box-shadow:0 0 0 3px rgba(31,122,99,.14);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .15s ease;
}
.btn-primary{
  background:var(--coral);
  color:#fff;
  box-shadow:0 8px 20px -10px rgba(226,84,60,.75);
}
.btn-primary:hover{background:var(--coral-hover);color:#fff;box-shadow:0 12px 24px -10px rgba(226,84,60,.85);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:transparent;
  color:var(--brand-700);
  border:1px solid var(--brand-700);
}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-900);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn:disabled,.btn[disabled]{opacity:.5;cursor:not-allowed;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  align-items:center;justify-content:center;
  color:var(--brand-900);
  font-size:16px;
}
.mobile-drawer{
  display:none;
  position:fixed;
  left:0;right:0;top:60px;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh2);
  padding:16px 20px 24px;
  transform:translateY(-10px);
  opacity:0;
  visibility:hidden;
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
  z-index:59;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.mobile-drawer ul{display:flex;flex-direction:column;gap:4px;margin-bottom:14px;}
.mobile-drawer ul a{
  display:block;
  padding:12px 14px;
  font-size:16px;
  color:var(--text);
  background:#FAFAF7;
  border-radius:var(--r-md);
  border:1px solid var(--line);
}
.mobile-drawer ul a.is-active{background:var(--brand-100);color:var(--brand-900);font-weight:700;border-color:#CFE4DC;}
.mobile-drawer .nav-search{width:100%;margin-bottom:14px;}
.mobile-drawer .btn{width:100%;}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  padding:24px 0 0;
}
.cat-hero-inner{
  position:relative;
  min-height:320px;
  border-radius:var(--r-xl);
  padding:56px 48px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:flex-start;
  color:#fff;
  overflow:hidden;
  background-image:
    linear-gradient(115deg,rgba(12,59,50,.92) 0%,rgba(20,97,79,.78) 50%,rgba(31,122,99,.60) 100%),
    radial-gradient(circle at 82% 20%,rgba(240,166,60,.30) 0%,rgba(240,166,60,0) 55%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover,cover,cover;
  background-position:center,center,center;
  box-shadow:var(--sh2);
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.28);
  font-size:13px;
  font-weight:600;
  margin-bottom:18px;
}
.cat-hero h1{
  font-size:clamp(28px,4vw,42px);
  line-height:1.25;
  font-weight:700;
  margin-bottom:14px;
  letter-spacing:.5px;
  max-width:820px;
}
.hero-sub{
  font-size:16px;
  line-height:1.7;
  color:rgba(255,255,255,.88);
  max-width:660px;
  margin-bottom:24px;
}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;}
.data-badge{
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  padding:8px 16px;
  border-radius:var(--r-pill);
  background:var(--amber-100);
  color:var(--amber-800);
  font-size:13px;
  font-weight:600;
  font-variant-numeric:tabular-nums;
}
.data-badge strong{font-size:17px;}
.data-badge--light{
  background:rgba(255,255,255,.92);
  color:var(--brand-900);
  border:1px solid rgba(255,255,255,.6);
}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  padding:22px 0 6px;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand-700);}
.breadcrumb .sep{color:#B9C4C0;}
.breadcrumb .current{color:var(--text);font-weight:600;}

/* ---------- 主体双栏 ---------- */
.content-layout{padding:24px 0 72px;}
.main-col{min-width:0;}
.side-col{min-width:0;}
.section-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:32px;
  box-shadow:var(--sh1);
  margin-bottom:24px;
}
.section-head{margin-bottom:22px;}
.eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  letter-spacing:1px;
  color:var(--brand-500);
  background:var(--brand-100);
  padding:4px 12px;
  border-radius:var(--r-sm);
  margin-bottom:12px;
}
.section-card h2{
  font-size:26px;
  line-height:1.4;
  font-weight:700;
  color:var(--brand-900);
  margin-bottom:10px;
}
.section-card h3{
  font-size:20px;
  line-height:1.5;
  font-weight:700;
  color:var(--brand-900);
  margin-bottom:12px;
}
.section-card p{
  font-size:16px;
  line-height:1.85;
  color:#2C3B36;
  margin-bottom:14px;
}
.section-card p:last-child{margin-bottom:0;}
.lead{color:var(--muted);}

/* 三点速览 */
.quick-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
  margin-top:6px;
}
.quick-item{
  background:#FAFAF7;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:20px;
  transition:box-shadow .2s ease,transform .2s ease;
}
.quick-item:hover{box-shadow:var(--sh2);transform:translateY(-4px);}
.quick-item .num{
  display:inline-flex;
  width:30px;height:30px;
  align-items:center;justify-content:center;
  border-radius:10px;
  background:var(--amber-100);
  color:var(--amber-800);
  font-size:13px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  margin-bottom:12px;
}
.quick-item h3{font-size:16px;margin-bottom:8px;}
.quick-item p{font-size:14px;line-height:1.75;color:var(--muted);margin:0;}

/* 锯齿图文 */
.zig{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:28px;
  align-items:center;
  padding:26px 0;
  border-top:1px dashed var(--line);
}
.zig:first-of-type{border-top:0;padding-top:6px;}
.zig-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh1);
  background:var(--grad);
  aspect-ratio:16/10;
}
.zig-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.zig-media:hover img{transform:scale(1.03);}
.zig.reverse .zig-media{order:2;}
.zig.reverse .zig-body{order:1;}
.zig-body h3{margin-bottom:10px;}
.zig-body p{font-size:15.5px;line-height:1.85;color:#2C3B36;margin-bottom:12px;}
.zig-body p:last-child{margin-bottom:0;}
.mini-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  font-weight:600;
  color:var(--brand-700);
  background:var(--brand-100);
  border-radius:var(--r-sm);
  padding:4px 10px;
  margin-bottom:12px;
}

/* 术语定义列表 */
.term-list{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0 28px;
  margin-top:8px;
}
.term-item{
  padding:16px 0;
  border-bottom:1px solid var(--line);
}
.term-item dt{
  font-size:16px;
  font-weight:700;
  color:var(--brand-900);
  margin-bottom:6px;
  display:flex;
  align-items:center;
  gap:8px;
}
.term-item dt::before{
  content:"";
  width:8px;height:8px;
  border-radius:2px;
  background:var(--brand-500);
  flex:0 0 auto;
}
.term-item dd{
  margin:0;
  font-size:14.5px;
  line-height:1.8;
  color:var(--muted);
}

/* 排行式牌型条 */
.rank-list{margin-top:8px;display:flex;flex-direction:column;gap:10px;}
.rank-row{
  display:flex;
  align-items:center;
  gap:14px;
  background:#FAFAF7;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:12px 16px;
}
.rank-no{
  width:28px;height:28px;
  border-radius:9px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;
  background:var(--brand-100);
  color:var(--brand-700);
  font-variant-numeric:tabular-nums;
  flex:0 0 auto;
}
.rank-row.is-top .rank-no{background:var(--coral);color:#fff;}
.rank-name{font-weight:700;font-size:15px;color:var(--brand-900);flex:0 0 96px;}
.rank-desc{font-size:14px;color:var(--muted);line-height:1.7;}

/* FAQ 手风琴覆盖 Foundation */
.faq-accordion{margin:0;background:transparent;border:0;}
.faq-accordion li.accordion-item{
  border:1px solid var(--line);
  border-left:4px solid transparent;
  border-radius:var(--r-md);
  background:#fff;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-accordion li.accordion-item:hover{box-shadow:var(--sh1);}
.faq-accordion li.accordion-item.is-active{
  border-left-color:var(--amber);
  box-shadow:var(--sh2);
}
.faq-accordion .accordion-title{
  display:block;
  position:relative;
  padding:18px 56px 18px 20px;
  font-size:17px;
  font-weight:700;
  color:var(--brand-900);
  background:#fff;
  border:0;
  line-height:1.6;
}
.faq-accordion .accordion-title:hover,
.faq-accordion .accordion-title:focus{background:#FBFAF6;color:var(--brand-900);}
.faq-accordion .accordion-title::before{
  content:"\f067";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;
  right:20px;
  top:50%;
  transform:translateY(-50%);
  font-size:13px;
  color:var(--brand-500);
  transition:transform .22s ease,color .22s ease;
}
.faq-accordion .accordion-item.is-active .accordion-title::before{
  content:"\f068";
  color:var(--coral);
}
.faq-accordion .accordion-content{
  padding:0 20px 22px 20px;
  border:0;
  background:#fff;
  color:#2C3B36;
  font-size:15px;
  line-height:1.85;
}
.faq-accordion .accordion-content p{margin:0;font-size:15px;}

/* 侧栏 */
.side-sticky{position:sticky;top:96px;}
.side-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:24px;
  box-shadow:var(--sh1);
  margin-bottom:20px;
}
.side-card h4{
  font-size:16px;
  font-weight:700;
  color:var(--brand-900);
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:8px;
}
.side-card h4 i{color:var(--brand-500);font-size:14px;}
.toc-list li{margin-bottom:2px;}
.toc-list a{
  display:block;
  padding:9px 12px;
  font-size:14.5px;
  color:var(--muted);
  border-left:3px solid transparent;
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  transition:all .2s ease;
}
.toc-list a:hover{
  color:var(--brand-900);
  background:#FAFAF7;
  border-left-color:var(--brand-500);
}
.side-cta p{font-size:14px;color:var(--muted);line-height:1.75;margin-bottom:16px;}
.side-cta .btn{width:100%;}
.side-links li a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:11px 0;
  font-size:14.5px;
  color:#2C3B36;
  border-bottom:1px solid var(--line);
}
.side-links li:last-child a{border-bottom:0;}
.side-links li a i{font-size:11px;color:#B9C4C0;transition:transform .2s ease,color .2s ease;}
.side-links li a:hover{color:var(--brand-700);}
.side-links li a:hover i{color:var(--brand-500);transform:translateX(3px);}

/* 底部 CTA */
.cta-band{padding:0 0 72px;}
.cta-card{
  position:relative;
  border-radius:var(--r-xl);
  overflow:hidden;
  padding:48px;
  color:#fff;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:36px;
  align-items:center;
  background-image:
    linear-gradient(120deg,rgba(12,59,50,.95) 0%,rgba(20,97,79,.86) 60%,rgba(31,122,99,.72) 100%),
    radial-gradient(circle at 88% 78%,rgba(240,166,60,.28) 0%,rgba(240,166,60,0) 55%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover,cover,cover;
  background-position:center;
  box-shadow:var(--sh2);
}
.cta-card h2{
  font-size:28px;
  line-height:1.4;
  font-weight:700;
  margin-bottom:12px;
}
.cta-card p{
  font-size:15.5px;
  line-height:1.85;
  color:rgba(255,255,255,.86);
}
.cta-points{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:20px;
}
.cta-points span{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  font-weight:600;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.24);
}
.cta-actions{display:flex;flex-direction:column;gap:12px;}
.cta-actions .btn{width:100%;}
.cta-actions .btn-ghost{border-color:rgba(255,255,255,.7);color:#fff;}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;}
.cta-note{font-size:12.5px;color:rgba(255,255,255,.7);margin-top:2px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-900);
  color:rgba(255,255,255,.78);
  padding:64px 0 24px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{
  font-size:14px;
  line-height:1.85;
  margin-bottom:12px;
}
.footer-note{font-size:12.5px;color:rgba(255,255,255,.55);}
.footer-col ul li{margin-bottom:9px;}
.footer-col ul a{
  font-size:14px;
  color:rgba(255,255,255,.72);
}
.footer-col ul a:hover{color:#fff;}
.footer-cta p{font-size:14px;line-height:1.85;margin-bottom:16px;color:rgba(255,255,255,.72);}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .main-nav,.header-actions .nav-search,.header-actions .header-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .mobile-drawer{display:block;}
  .header-inner{min-height:60px;}
  .content-layout{padding-bottom:56px;}
  .side-sticky{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-card{grid-template-columns:1fr;padding:40px;}
  .section-card{padding:26px;}
}
@media (max-width:860px){
  .quick-grid{grid-template-columns:1fr;}
  .term-list{grid-template-columns:1fr;}
  .zig{grid-template-columns:1fr;gap:18px;padding:22px 0;}
  .zig.reverse .zig-media{order:0;}
  .zig.reverse .zig-body{order:0;}
}
@media (max-width:640px){
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .cat-hero{padding-top:16px;}
  .cat-hero-inner{padding:36px 24px;min-height:auto;border-radius:var(--r-lg);}
  .cat-hero h1{font-size:24px;}
  .hero-sub{font-size:15px;margin-bottom:18px;}
  .section-card{padding:20px;border-radius:var(--r-lg);}
  .section-card h2{font-size:21px;}
  .section-card h3{font-size:18px;}
  .cta-card{padding:28px 22px;border-radius:var(--r-lg);}
  .cta-card h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;}
  .rank-row{flex-wrap:wrap;gap:8px;}
  .rank-name{flex:0 0 auto;}
  .content-layout{padding:16px 0 48px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category4 */
:root{
  --green-900:#0C3B32;
  --green-700:#14614F;
  --green-500:#1F7A63;
  --green-100:#E3F0EB;
  --coral:#E2543C;
  --coral-dark:#C8432D;
  --amber:#F0A63C;
  --amber-soft:#FDF1DC;
  --amber-text:#8A5A12;
  --bg:#F6F4EE;
  --card:#FFFFFF;
  --line:#E3E2DA;
  --text:#14201D;
  --muted:#5C6E68;
  --success:#2E9E6B;
  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:20px;
  --radius-xl:28px;
  --pill:999px;
  --shadow-1:0 1px 2px rgba(12,59,50,.06);
  --shadow-2:0 10px 30px -12px rgba(12,59,50,.18);
  --shadow-3:0 18px 40px -16px rgba(12,59,50,.28);
  --brand-gradient:linear-gradient(135deg,#0C3B32 0%,#14614F 55%,#1F7A63 100%);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--green-700);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--green-500);text-decoration:underline;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--text);}
h1{font-size:clamp(28px,4vw,44px);line-height:1.25;}
h2{font-size:28px;}
h3{font-size:20px;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
figure{margin:0;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{background:none;border:none;cursor:pointer;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:28px;}
.section-head h2{font-size:clamp(24px,3vw,30px);margin-bottom:10px;}
.section-head p{color:var(--muted);font-size:15.5px;margin:0;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-2);}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  background:var(--brand-gradient);color:#fff;
  display:grid;place-items:center;font-size:15px;
  box-shadow:var(--shadow-1);
}
.brand-text{font-size:17px;font-weight:700;color:var(--green-900);letter-spacing:.2px;}
.main-nav{flex:1 1 auto;display:flex;justify-content:center;}
.main-nav ul{display:flex;gap:4px;}
.main-nav a{
  position:relative;display:inline-block;
  padding:8px 14px;font-size:15px;font-weight:500;
  color:var(--text);border-radius:var(--pill);
  transition:background .2s ease,color .2s ease;
}
.main-nav a:hover{background:var(--green-100);color:var(--green-700);text-decoration:none;}
.main-nav a.is-active{color:var(--green-700);font-weight:700;}
.main-nav a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;
  height:2px;border-radius:2px;background:var(--green-500);
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.search-box{position:relative;}
.search-box i{position:absolute;left:15px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:13px;}
.search-box input{
  width:250px;height:40px;padding:0 16px 0 38px;
  border-radius:var(--pill);border:1px solid var(--line);
  background:#fff;font-size:14px;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
  -webkit-appearance:none;appearance:none;
}
.search-box input::placeholder{color:#9AA8A2;}
.search-box input:focus{border-color:var(--green-500);box-shadow:0 0 0 3px rgba(31,122,99,.15);}
.nav-toggle{
  display:none;width:42px;height:42px;
  border-radius:var(--radius-md);border:1px solid var(--line);
  background:#fff;color:var(--green-900);font-size:16px;
  align-items:center;justify-content:center;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--pill);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:background .2s ease,color .2s ease,transform .15s ease,box-shadow .2s ease;
}
.btn:hover{text-decoration:none;}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--coral);color:#fff;box-shadow:0 8px 20px -10px rgba(226,84,60,.7);}
.btn-primary:hover{background:var(--coral-dark);color:#fff;}
.btn-ghost{background:transparent;border-color:var(--green-700);color:var(--green-700);}
.btn-ghost:hover{background:var(--green-100);color:var(--green-700);}
.btn-light{background:#fff;color:var(--green-900);}
.btn-light:hover{background:#EEF7F3;color:var(--green-900);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.5;pointer-events:none;}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(12,59,50,.45);
  opacity:0;visibility:hidden;
  transition:opacity .2s ease,visibility .2s ease;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;}
.drawer-panel{
  position:absolute;top:0;right:0;
  width:min(330px,88vw);height:100%;
  background:#fff;padding:20px;
  display:flex;flex-direction:column;gap:18px;
  overflow-y:auto;
  transform:translateX(100%);
  transition:transform .25s ease;
}
.mobile-drawer.is-open .drawer-panel{transform:none;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.drawer-close{
  width:38px;height:38px;border-radius:var(--radius-md);
  border:1px solid var(--line);background:#fff;color:var(--green-900);
  display:grid;place-items:center;
}
.drawer-search input{width:100%;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;border-top:1px solid var(--line);padding-top:14px;}
.drawer-nav a{
  display:block;padding:11px 14px;border-radius:var(--radius-md);
  font-size:15px;color:var(--text);
}
.drawer-nav a:hover{background:var(--green-100);color:var(--green-700);text-decoration:none;}
.drawer-nav a.is-active{background:var(--green-100);color:var(--green-700);font-weight:700;}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  margin-top:24px;padding:56px;
  min-height:320px;border-radius:var(--radius-xl);
  display:flex;align-items:center;
  background-image:
    linear-gradient(120deg,rgba(12,59,50,.93) 0%,rgba(20,97,79,.85) 55%,rgba(31,122,99,.62) 100%),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(620px 320px at 84% 16%,rgba(240,166,60,.24),transparent 70%);
}
.cat-hero-inner{position:relative;z-index:1;max-width:680px;color:#fff;}
.eyebrow{
  display:inline-block;margin-bottom:14px;
  padding:5px 14px;border-radius:var(--pill);
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.3);
  font-size:13px;font-weight:600;letter-spacing:.5px;color:#fff;
}
.cat-hero h1{color:#fff;margin-bottom:14px;}
.hero-sub{font-size:16px;line-height:1.8;color:rgba(255,255,255,.88);margin:0;max-width:560px;}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:var(--pill);
  font-size:13px;font-weight:600;
  font-variant-numeric:tabular-nums;
}
.badge b{font-variant-numeric:tabular-nums;font-weight:700;}
.badge-amber{background:var(--amber-soft);color:var(--amber-text);}
.badge-glass{
  background:rgba(255,255,255,.16);color:#fff;
  border:1px solid rgba(255,255,255,.32);
}
.chip{
  display:inline-block;padding:4px 10px;border-radius:6px;
  background:var(--green-100);color:var(--green-700);
  font-size:12px;font-weight:600;
}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:20px 0 0;font-size:13px;color:var(--muted);
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--green-700);text-decoration:none;}
.breadcrumb .sep{color:#B9C2BD;}
.breadcrumb .current{color:var(--text);font-weight:600;}

/* ---------- 双栏布局 ---------- */
.layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;
  gap:32px;align-items:start;padding:32px 0 0;
}
.main-col{min-width:0;}

/* ---------- FAQ 分组 ---------- */
.faq-group{margin-bottom:36px;scroll-margin-top:96px;}
.faq-group:last-child{margin-bottom:0;}
.faq-group-head{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.faq-group-head .num{
  width:38px;height:38px;flex-shrink:0;border-radius:var(--radius-md);
  background:var(--brand-gradient);color:#fff;
  display:grid;place-items:center;font-size:15px;font-weight:700;
}
.faq-group-head h2{font-size:23px;}
.faq-group-head .count{
  margin-left:auto;font-size:13px;color:var(--muted);
  background:#fff;border:1px solid var(--line);
  padding:3px 12px;border-radius:var(--pill);
  font-variant-numeric:tabular-nums;
}
.faq-item{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-md);margin-bottom:12px;
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item[open]{border-color:#CDE3DA;box-shadow:var(--shadow-2);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:17px;font-weight:600;
  color:var(--text);cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::marker{content:"";}
.faq-icon{
  width:26px;height:26px;flex-shrink:0;border-radius:50%;
  background:var(--green-100);color:var(--green-700);
  display:grid;place-items:center;font-size:11px;
  transition:transform .2s ease,background .2s ease,color .2s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--amber-soft);color:var(--amber-text);}
.faq-answer{
  position:relative;padding:0 22px 20px;
  font-size:15.5px;line-height:1.85;color:var(--muted);
}
.faq-answer p{margin-bottom:10px;}
.faq-answer strong{color:var(--text);font-weight:600;}
.faq-item[open] .faq-answer::before{
  content:"";position:absolute;left:0;top:0;bottom:18px;
  width:4px;border-radius:0 4px 4px 0;background:var(--amber);
}

/* ---------- 侧栏 ---------- */
.side{display:flex;flex-direction:column;gap:20px;position:sticky;top:88px;}
.side-card{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:24px;
  box-shadow:var(--shadow-1);
}
.side-card h3{
  font-size:16px;margin-bottom:14px;
  display:flex;align-items:center;gap:9px;
}
.side-card h3 i{color:var(--green-500);font-size:14px;}
.side-list{display:flex;flex-direction:column;gap:2px;}
.side-list li a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:var(--radius-sm);
  font-size:14px;color:var(--muted);
  transition:background .2s ease,color .2s ease,padding .2s ease;
}
.side-list li a:hover{background:var(--green-100);color:var(--green-700);padding-left:16px;text-decoration:none;}
.side-list li a span:last-child{font-variant-numeric:tabular-nums;color:#9AA8A2;font-size:13px;}
.side-list li a:hover span:last-child{color:var(--green-500);}
.side-cta{background:var(--brand-gradient);border:none;color:rgba(255,255,255,.82);}
.side-cta h3{color:#fff;}
.side-cta p{font-size:14px;line-height:1.75;margin-bottom:16px;}

/* ---------- 场景速查 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.scene-card{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
  display:flex;flex-direction:column;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);}
.scene-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.scene-body{padding:22px;display:flex;flex-direction:column;gap:10px;}
.scene-body h3{font-size:18px;line-height:1.45;}
.scene-body p{font-size:14.5px;color:var(--muted);margin:0;line-height:1.8;}
.scene-body .chip{align-self:flex-start;}

/* ---------- 支持渠道 ---------- */
.support-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.support-card{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:28px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.support-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.support-icon{
  width:48px;height:48px;border-radius:50%;
  background:var(--green-100);color:var(--green-700);
  display:grid;place-items:center;font-size:18px;margin-bottom:16px;
}
.support-card h3{font-size:18px;margin-bottom:10px;}
.support-card p{font-size:14.5px;color:var(--muted);margin:0;line-height:1.8;}

/* ---------- 底部 CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  background:var(--brand-gradient);
  border-radius:var(--radius-xl);
  padding:48px;
  display:grid;grid-template-columns:1.5fr 1fr;gap:36px;align-items:center;
  color:#fff;
}
.cta-panel::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(520px 280px at 88% 12%,rgba(240,166,60,.22),transparent 70%);
}
.cta-panel > *{position:relative;z-index:1;}
.cta-panel h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;line-height:1.35;}
.cta-panel p{color:rgba(255,255,255,.85);font-size:15.5px;max-width:520px;}
.cta-points{display:flex;flex-direction:column;gap:10px;margin-top:20px;}
.cta-points li{display:flex;align-items:center;gap:10px;font-size:14.5px;color:rgba(255,255,255,.9);}
.cta-points i{color:var(--amber);font-size:13px;}
.cta-actions{display:flex;flex-direction:column;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--green-900);color:rgba(255,255,255,.72);
  margin-top:72px;padding:56px 0 24px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:2px;}
.footer-col ul li a{
  display:inline-block;padding:4px 0;
  font-size:14px;color:rgba(255,255,255,.72);
  transition:color .2s ease;
}
.footer-col ul li a:hover{color:#fff;text-decoration:none;}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand-mark{background:linear-gradient(135deg,#14614F,#1F7A63);}
.footer-brand p{font-size:14px;line-height:1.8;margin:16px 0 0;max-width:320px;}
.footer-note{font-size:12.5px;color:rgba(255,255,255,.55);margin-top:12px;}
.footer-cta p{font-size:14px;line-height:1.8;max-width:280px;}
.footer-cta .btn{margin-top:16px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:40px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (min-width:1024px){
  .section{padding:96px 0;}
}
@media (max-width:1023px){
  .main-nav,.header-actions .search-box,.header-actions .btn{display:none;}
  .nav-toggle{display:flex;}
  .layout{grid-template-columns:minmax(0,1fr);gap:28px;}
  .side{position:static;top:auto;}
  .scene-grid,.support-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px 24px;}
  .cta-panel{grid-template-columns:1fr;padding:40px;gap:28px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .cat-hero{padding:36px 24px;min-height:260px;border-radius:var(--radius-lg);}
  .hero-sub{font-size:15px;}
  .faq-item summary{font-size:16px;padding:16px 18px;}
  .faq-answer{padding:0 18px 18px;font-size:15px;}
  .faq-group-head h2{font-size:20px;}
  .scene-grid,.support-grid{grid-template-columns:1fr;}
  .cta-panel{padding:32px 24px;border-radius:var(--radius-lg);}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding:44px 0 20px;}
}
@media (max-width:520px){
  .header-inner{height:60px;}
  .brand-text{font-size:15.5px;}
  .badge{font-size:12px;padding:6px 12px;}
  .breadcrumb{font-size:12.5px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}