/* roulang page: index */
:root{
  --brand:#0B3D2E;
  --brand-dark:#072A20;
  --brand-light:#1F6B4F;
  --accent:#FF6A2A;
  --accent-soft:#FFB86B;
  --highlight:#C6FF4A;
  --bg:#F5F7F2;
  --panel:#FFFFFF;
  --soft:#E8EEE8;
  --line:#DCE5DD;
  --text:#14201B;
  --muted:#4B5B53;
  --weak:#7B8A82;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 10px 30px rgba(7,42,32,.08);
  --shadow-lg:0 18px 44px rgba(7,42,32,.14);
  --max:1240px;
}
*,*::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:"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,"Helvetica Neue",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-sm);}
a{color:var(--brand-light);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--accent);}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;line-height:1.28;letter-spacing:.2px;}
p{margin:0 0 1em 0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
::selection{background:rgba(198,255,74,.55);color:var(--brand-dark);}
:focus-visible{outline:2px solid var(--highlight);outline-offset:2px;}

.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px;}
.section{padding:86px 0;}
.section--tight{padding:64px 0;}
.section--soft{background:var(--soft);}
.section-head{max-width:760px;margin:0 auto 44px;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.12em;
  color:var(--brand-light);text-transform:uppercase;
  background:rgba(31,107,79,.1);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.section-title{font-size:30px;margin-bottom:14px;}
.section-sub{color:var(--muted);font-size:16px;margin:0;}
.section-head--left{text-align:left;margin-left:0;margin-right:0;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow);}
.btn-primary:hover{background:var(--brand-light);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 26px rgba(255,106,42,.28);}
.btn-accent:hover{background:#F25613;color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,106,42,.34);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line);}
.btn-ghost:hover{background:var(--soft);color:var(--brand-dark);border-color:var(--brand-light);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}
.btn-lg{padding:15px 34px;font-size:16px;}
.btn-sm{padding:9px 18px;font-size:14px;}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.header-top{padding:14px 0;}
.header-inner{display:flex;align-items:center;gap:24px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:44px;height:44px;border-radius:14px;
  background:linear-gradient(150deg,var(--brand-light),var(--brand-dark));
  color:#fff;font-weight:800;font-size:19px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 20px rgba(11,61,46,.24);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text b{font-size:17px;color:var(--brand-dark);letter-spacing:.5px;}
.brand-text span{font-size:12px;color:var(--weak);letter-spacing:.16em;}
.nav-search{
  flex:1;display:flex;align-items:center;gap:10px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:6px 8px 6px 20px;height:54px;min-width:280px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{border-color:var(--brand-light);box-shadow:0 0 0 4px rgba(31,107,79,.14);}
.nav-search i{color:var(--weak);font-size:15px;}
.nav-search input{
  flex:1;border:0;outline:0;background:transparent;font-size:15px;color:var(--text);height:100%;
}
.nav-search input::placeholder{color:var(--weak);}
.nav-search button{
  border:0;border-radius:999px;background:var(--brand);color:#fff;
  padding:11px 22px;font-size:14px;font-weight:600;cursor:pointer;transition:background .18s ease;
}
.nav-search button:hover{background:var(--brand-light);}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.menu-toggle{
  display:none;width:46px;height:46px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--brand);font-size:17px;cursor:pointer;
}
.cat-nav{border-top:1px solid var(--line);background:#fff;}
.cat-inner{display:flex;align-items:center;gap:10px;padding:12px 24px;overflow-x:auto;scrollbar-width:none;}
.cat-inner::-webkit-scrollbar{display:none;}
.pill{
  flex-shrink:0;padding:8px 18px;border-radius:999px;background:var(--soft);
  color:var(--muted);font-size:14px;font-weight:600;transition:all .18s ease;
}
.pill:hover{background:rgba(31,107,79,.14);color:var(--brand);}
.pill.active{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(11,61,46,.22);}

/* Hero */
.hero{
  position:relative;color:#fff;overflow:hidden;
  background:
    radial-gradient(900px 420px at 82% 12%,rgba(198,255,74,.16),transparent 62%),
    linear-gradient(125deg,var(--brand-dark) 0%,var(--brand) 58%,#12503B 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 78%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:78px 0 88px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(198,255,74,.16);border:1px solid rgba(198,255,74,.4);
  color:var(--highlight);font-size:13px;font-weight:600;letter-spacing:.08em;
  padding:7px 16px;border-radius:999px;margin-bottom:22px;
}
.hero h1{color:#fff;font-size:46px;line-height:1.2;margin-bottom:20px;}
.hero-sub{color:rgba(255,255,255,.84);font-size:17px;line-height:1.85;max-width:560px;margin-bottom:30px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 28px;}
.hero-points li{display:flex;align-items:center;gap:8px;color:rgba(255,255,255,.82);font-size:14px;}
.hero-points i{color:var(--highlight);font-size:13px;}
.hero-visual{position:relative;}
.hero-visual img{
  border-radius:22px;box-shadow:0 30px 60px rgba(0,0,0,.34);
  border:1px solid rgba(255,255,255,.16);width:100%;object-fit:cover;aspect-ratio:4/3;
}
.hero-float{
  position:absolute;left:-18px;bottom:26px;
  background:#fff;color:var(--text);border-radius:16px;padding:14px 18px;
  box-shadow:0 18px 40px rgba(0,0,0,.26);display:flex;align-items:center;gap:12px;
}
.hero-float i{color:var(--accent);font-size:20px;}
.hero-float b{display:block;font-size:15px;color:var(--brand-dark);}
.hero-float span{font-size:12px;color:var(--weak);}

/* 步骤条 */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.step{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;box-shadow:var(--shadow);position:relative;transition:transform .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.step-num{
  width:44px;height:44px;border-radius:14px;background:rgba(31,107,79,.1);
  color:var(--brand);font-weight:800;font-size:18px;display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.step h3{font-size:19px;margin-bottom:10px;}
.step p{color:var(--muted);font-size:15px;margin:0;}
.step .step-line{position:absolute;top:50px;right:-24px;width:24px;height:2px;background:var(--line);}
.step:last-child .step-line{display:none;}

/* 权益对比表 */
.compare-wrap{
  background:var(--panel);border:1px solid var(--line);border-radius:20px;
  box-shadow:var(--shadow);overflow:hidden;
}
.compare-table{width:100%;border-collapse:collapse;font-size:15px;margin:0;}
.compare-table thead th{
  background:var(--soft);color:var(--brand-dark);font-size:15px;font-weight:700;
  padding:18px 20px;text-align:left;border:0;border-bottom:1px solid var(--line);
}
.compare-table thead th.col-recommend{
  background:rgba(31,107,79,.14);position:relative;
}
.rec-badge{
  display:inline-block;margin-left:10px;background:var(--accent);color:#fff;
  font-size:12px;font-weight:600;padding:2px 10px;border-radius:999px;vertical-align:middle;
}
.compare-table tbody td{
  padding:16px 20px;border:0;border-bottom:1px solid var(--line);color:var(--muted);
}
.compare-table tbody tr:last-child td{border-bottom:0;}
.compare-table tbody tr:hover{background:rgba(232,238,232,.42);}
.compare-table td.feature-cell{color:var(--text);font-weight:600;}
.compare-table td.col-recommend{background:rgba(198,255,74,.16);color:var(--brand-dark);font-weight:600;}
.tick{color:var(--brand-light);margin-right:6px;}

/* 等级卡 */
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}
.tier-card{
  background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:30px;
  display:flex;flex-direction:column;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease;
}
.tier-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.tier-card.featured{background:linear-gradient(160deg,var(--brand-dark),var(--brand));border-color:var(--brand);color:#fff;}
.tier-card.featured h3,.tier-card.featured .tier-price b{color:#fff;}
.tier-card.featured .tier-list li{color:rgba(255,255,255,.86);}
.tier-card.featured .tier-list i{color:var(--highlight);}
.tier-badge{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;
  padding:5px 14px;border-radius:999px;background:rgba(31,107,79,.12);color:var(--brand);margin-bottom:16px;align-self:flex-start;
}
.tier-card.featured .tier-badge{background:rgba(198,255,74,.2);color:var(--highlight);}
.tier-card h3{font-size:21px;margin-bottom:8px;}
.tier-price{margin-bottom:20px;color:var(--muted);font-size:14px;}
.tier-price b{font-size:26px;color:var(--brand-dark);font-family:Inter,sans-serif;letter-spacing:-.5px;}
.tier-list{display:flex;flex-direction:column;gap:11px;margin-bottom:26px;flex:1;}
.tier-list li{display:flex;gap:10px;font-size:14.5px;color:var(--muted);line-height:1.7;}
.tier-list i{color:var(--brand-light);margin-top:5px;font-size:12px;}
.tier-card .btn{width:100%;}

/* 专属内容卡 */
.content-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.cc-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease;
}
.cc-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);}
.cc-media{overflow:hidden;aspect-ratio:16/10;background:var(--soft);}
.cc-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .35s ease;}
.cc-card:hover .cc-media img{transform:scale(1.05);}
.cc-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1;}
.tag{
  display:inline-block;align-self:flex-start;font-size:12px;font-weight:600;
  color:var(--brand);background:rgba(31,107,79,.1);padding:4px 12px;border-radius:999px;margin-bottom:12px;
}
.cc-body h3{font-size:17px;margin-bottom:10px;line-height:1.45;}
.cc-body p{color:var(--muted);font-size:14px;line-height:1.75;margin-bottom:16px;flex:1;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.cc-link{font-size:14px;font-weight:600;color:var(--brand-light);display:inline-flex;align-items:center;gap:6px;}
.cc-link:hover{color:var(--accent);gap:10px;}

/* 最新信息 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:24px;box-shadow:var(--shadow);display:flex;flex-direction:column;height:100%;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(31,107,79,.35);}
.news-card h3{font-size:17px;line-height:1.5;margin-bottom:12px;}
.news-card h3 a{color:var(--text);}
.news-card h3 a:hover{color:var(--brand-light);}
.news-card p{color:var(--muted);font-size:14px;line-height:1.75;flex:1;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--weak);border-top:1px solid var(--line);padding-top:14px;}
.news-meta .tag{margin:0;}
.news-meta time{display:inline-flex;align-items:center;gap:6px;}
.empty-state{
  background:var(--panel);border:1px dashed var(--line);border-radius:var(--radius);
  padding:56px 24px;text-align:center;color:var(--weak);
}
.empty-state i{display:block;font-size:28px;color:var(--brand-light);margin-bottom:14px;}

/* 数据与反馈 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-bottom:48px;}
.stat{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;text-align:center;box-shadow:var(--shadow);
}
.stat b{display:block;font-family:Inter,sans-serif;font-size:32px;color:var(--brand);letter-spacing:-.6px;}
.stat span{font-size:14px;color:var(--muted);}
.voices{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.voice{
  background:var(--panel);border-left:4px solid var(--brand-light);border-radius:var(--radius-sm);
  padding:24px;box-shadow:var(--shadow);
}
.voice p{color:var(--muted);font-size:15px;margin-bottom:16px;}
.voice b{font-size:14px;color:var(--brand-dark);}
.voice span{display:block;font-size:12.5px;color:var(--weak);}

/* FAQ */
.faq-list{max-width:900px;margin:0 auto;background:var(--panel);border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;text-align:left;background:transparent;border:0;cursor:pointer;
  padding:22px 26px 22px 30px;font-size:17.5px;font-weight:700;color:var(--text);
  display:flex;align-items:center;justify-content:space-between;gap:18px;position:relative;transition:color .18s ease,background .18s ease;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;border-radius:0 4px 4px 0;background:transparent;transition:background .2s ease;
}
.faq-item.is-open .faq-q::before{background:var(--brand-light);}
.faq-item.is-open .faq-q{color:var(--brand-dark);background:rgba(232,238,232,.34);}
.faq-q:hover{color:var(--brand-light);}
.faq-q i{color:var(--brand-light);font-size:14px;transition:transform .25s ease;flex-shrink:0;}
.faq-item.is-open .faq-q i{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 30px 24px 30px;margin:0;color:var(--muted);font-size:15.5px;line-height:1.85;}

/* CTA 横幅 */
.cta-banner{
  position:relative;border-radius:24px;overflow:hidden;color:#fff;
  padding:64px 56px;
  background:
    linear-gradient(120deg,rgba(7,42,32,.95),rgba(11,61,46,.86)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  box-shadow:var(--shadow-lg);
}
.cta-banner h2{color:#fff;font-size:32px;margin-bottom:16px;}
.cta-banner p{color:rgba(255,255,255,.86);font-size:16.5px;max-width:640px;margin-bottom:30px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-note{margin-top:22px;font-size:13.5px;color:rgba(255,255,255,.65);}

/* 页脚 */
.site-footer{background:var(--brand-dark);color:rgba(255,255,255,.72);padding:66px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand b{color:#fff;font-size:17px;}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);margin:0;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.04em;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-col a:hover{color:var(--highlight);}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;padding-top:24px;font-size:13.5px;color:rgba(255,255,255,.55);}
.footer-bottom a{color:rgba(255,255,255,.72);}
.footer-bottom a:hover{color:var(--highlight);}

/* 响应式 */
@media (max-width:1100px){
  .hero h1{font-size:38px;}
  .content-cards{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .stats{grid-template-columns:repeat(2,1fr);}
  .voices{grid-template-columns:1fr;}
}
@media (max-width:1023px){
  .header-inner{flex-wrap:wrap;}
  .nav-search{order:3;flex:1 0 100%;min-width:0;height:50px;}
  .brand-text span{display:none;}
  .hero-inner{grid-template-columns:1fr;gap:38px;padding:56px 0 68px;}
  .hero h1{font-size:34px;}
  .hero-sub{max-width:100%;}
  .steps{grid-template-columns:1fr;}
  .step .step-line{display:none;}
  .tiers{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
  .compare-table{font-size:14px;}
  .cta-banner{padding:48px 32px;}
  .cta-banner h2{font-size:26px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .section--tight{padding:44px 0;}
  .site-header{position:static;}
  .header-top{padding:12px 0;}
  .brand-text b{font-size:15.5px;}
  .header-actions .btn-ghost{display:none;}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:auto;}
  .cat-inner{padding:10px 18px;}
  .cat-inner{flex-wrap:nowrap;}
  .cat-nav.is-open .cat-inner{flex-wrap:wrap;}
  .hero h1{font-size:28px;}
  .hero-inner{padding:42px 0 56px;}
  .hero-float{left:12px;bottom:12px;padding:11px 14px;}
  .section-title{font-size:24px;}
  .content-cards,.news-grid,.stats{grid-template-columns:1fr;}
  .compare-wrap{background:transparent;border:0;box-shadow:none;overflow:visible;}
  .compare-table,.compare-table tbody,.compare-table tr,.compare-table td{display:block;width:100%;}
  .compare-table thead{display:none;}
  .compare-table tr{
    background:var(--panel);border:1px solid var(--line);border-radius:14px;
    padding:16px 18px;margin-bottom:14px;box-shadow:var(--shadow);
  }
  .compare-table tbody td{
    border:0;padding:7px 0;display:flex;justify-content:space-between;gap:18px;font-size:14.5px;
  }
  .compare-table tbody td::before{
    content:attr(data-label);color:var(--weak);font-weight:600;flex-shrink:0;
  }
  .compare-table td.feature-cell{
    font-size:16px;font-weight:700;color:var(--brand-dark);
    padding-bottom:12px;margin-bottom:8px;border-bottom:1px solid var(--line);
  }
  .compare-table td.feature-cell::before{display:none;}
  .compare-table td.col-recommend{background:transparent;color:var(--brand);}
  .faq-q{font-size:16px;padding:18px 18px 18px 22px;}
  .faq-a p{padding:0 22px 20px 22px;font-size:15px;}
  .cta-banner{padding:38px 22px;border-radius:18px;}
  .cta-banner h2{font-size:23px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:520px){
  .hero h1{font-size:25.5px;}
  .nav-search button{padding:11px 16px;font-size:13.5px;}
  .btn{padding:11px 20px;font-size:14.5px;}
  .stat b{font-size:26px;}
}

/* roulang page: article */
:root{
  --brand:#0B3D2E;
  --brand-dark:#072A20;
  --brand-light:#1F6B4F;
  --accent:#FF6A2A;
  --accent-soft:#FFB86B;
  --lime:#C6FF4A;
  --bg:#F5F7F2;
  --panel:#FFFFFF;
  --line:#DCE5DD;
  --soft:#EFF4EF;
  --text:#14201B;
  --muted:#4B5B53;
  --weak:#7B8A82;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 10px 30px rgba(7,42,32,.08);
  --shadow-lg:0 18px 44px rgba(7,42,32,.16);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Inter,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-light);text-decoration:none;transition:color .2s ease,border-color .2s ease;}
a:hover,a:focus{color:var(--accent);}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
::selection{background:var(--lime);color:var(--brand-dark);}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);}
.header-top{padding:14px 0;}
.header-inner{display:flex;align-items:center;gap:22px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:44px;height:44px;border-radius:14px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--brand-light),var(--brand));
  color:#fff;font-weight:700;font-size:20px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px rgba(11,61,46,.24);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text b{font-size:17px;letter-spacing:.2px;color:var(--brand-dark);}
.brand-text span{font-size:12px;color:var(--weak);letter-spacing:.4px;}
.nav-search{position:relative;flex:1 1 auto;max-width:560px;margin:0;}
.nav-search i{position:absolute;left:20px;top:50%;transform:translateY(-50%);color:var(--weak);font-size:15px;pointer-events:none;}
.nav-search input[type="search"]{
  width:100%;height:52px;margin:0;padding:0 110px 0 50px;
  border-radius:999px;border:1.5px solid var(--line);background:var(--soft);
  color:var(--text);font-size:15px;box-shadow:none;transition:.22s ease;
}
.nav-search input[type="search"]::placeholder{color:var(--weak);}
.nav-search input[type="search"]:focus{border-color:var(--brand-light);background:#fff;box-shadow:0 0 0 4px rgba(31,107,79,.14);outline:none;}
.nav-search button{
  position:absolute;right:6px;top:6px;height:40px;padding:0 22px;margin:0;
  border:none;border-radius:999px;background:var(--brand);color:#fff;
  font-size:14px;font-weight:600;cursor:pointer;transition:.22s ease;
}
.nav-search button:hover{background:var(--accent);}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:#fff;color:var(--brand);cursor:pointer;font-size:17px;
}
.menu-toggle:hover{background:var(--soft);}
.cat-nav{border-top:1px solid var(--line);background:#FBFCFA;}
.cat-inner{display:flex;align-items:center;gap:8px;padding:10px 20px;overflow-x:auto;scrollbar-width:none;}
.cat-inner::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;padding:8px 16px;border-radius:999px;background:var(--soft);
  color:var(--muted);font-size:14px;white-space:nowrap;border:1px solid transparent;
}
.pill:hover{background:rgba(31,107,79,.12);color:var(--brand);}
.pill.active{background:var(--brand);color:#fff;font-weight:600;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;margin:0;border-radius:999px;border:1px solid transparent;
  background:var(--brand);color:#fff;font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease;
}
.btn:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.btn:focus-visible{outline:2px solid var(--lime);outline-offset:3px;}
.btn-accent{background:var(--accent);}
.btn-accent:hover{background:#EE5A19;}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--brand);}
.btn-ghost:hover{background:var(--soft);color:var(--brand);border-color:var(--brand-light);}
.btn-light{background:#fff;color:var(--brand);}
.btn-light:hover{background:var(--lime);color:var(--brand-dark);}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.5);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;color:#fff;padding:46px 0 58px;
  background:var(--brand-dark) url("/assets/images/backpic/back-2.png") center/cover no-repeat;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(7,42,32,.96) 0%,rgba(11,61,46,.82) 58%,rgba(11,61,46,.62) 100%);
}
.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,.72);margin-bottom:18px;}
.breadcrumb a{color:rgba(255,255,255,.86);}
.breadcrumb a:hover{color:var(--lime);}
.breadcrumb span.sep{color:rgba(255,255,255,.36);}
.article-title{
  font-size:42px;line-height:1.28;font-weight:800;letter-spacing:.2px;
  margin:0 0 20px;max-width:920px;color:#fff;
}
.article-meta{display:flex;flex-wrap:wrap;gap:10px;font-size:13px;color:rgba(255,255,255,.85);}
.article-meta span{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.16);
}
.article-meta b{color:var(--lime);font-weight:600;}

/* ============ 主体布局 ============ */
.section{padding:64px 0;}
.section-tight{padding:0 0 64px;}
.article-layout{margin-top:-34px;}
.article-layout > .cell{position:relative;z-index:3;}
.panel{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:34px 36px;
}
.lead-box{
  margin:0 0 26px;padding:20px 22px;border-radius:var(--radius-sm);
  background:linear-gradient(120deg,#F1F7F1,#FBFDF9);border-left:4px solid var(--brand-light);
  color:var(--muted);font-size:15.5px;line-height:1.85;
}
.lead-box strong{color:var(--brand);}
.block-title{
  font-size:26px;line-height:1.3;margin:0 0 8px;color:var(--brand-dark);font-weight:800;
  display:flex;align-items:center;gap:12px;
}
.block-title::before{content:"";width:6px;height:22px;border-radius:4px;background:var(--accent);display:block;}
.block-desc{margin:0 0 28px;color:var(--muted);font-size:15px;}

/* ============ 正文阅读区 ============ */
.article-body{font-size:17px;line-height:1.9;color:var(--text);max-width:860px;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.15em;}
.article-body h2{
  font-size:26px;line-height:1.34;font-weight:800;color:var(--brand-dark);
  margin:2em 0 .85em;padding-left:14px;border-left:5px solid var(--accent);
}
.article-body h3{font-size:20px;line-height:1.4;font-weight:700;color:var(--brand);margin:1.7em 0 .7em;}
.article-body h4{font-size:17px;font-weight:700;color:var(--brand);margin:1.4em 0 .6em;}
.article-body img{border-radius:var(--radius-sm);margin:1.5em auto;}
.article-body blockquote{
  margin:1.5em 0;padding:18px 22px;background:#F1F6F1;border-left:4px solid var(--brand);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--muted);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.5em;}
.article-body li{margin:.45em 0;}
.article-body a{color:var(--brand-light);border-bottom:1px solid rgba(31,107,79,.4);}
.article-body a:hover{color:var(--accent);border-color:var(--accent);}
.article-body table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15px;}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:11px 14px;text-align:left;}
.article-body th{background:#F1F6F1;color:var(--brand);font-weight:700;}
.article-body hr{border:none;border-top:1px dashed var(--line);margin:2em 0;}
.empty-state{
  text-align:center;padding:56px 20px;border:1px dashed var(--line);border-radius:var(--radius);
  background:#FBFCFA;color:var(--muted);
}
.empty-state i{font-size:34px;color:var(--brand-light);margin-bottom:14px;display:block;}
.empty-state h3{margin:0 0 8px;font-size:20px;color:var(--brand-dark);}
.empty-state p{margin:0 0 20px;font-size:15px;}

/* ============ 侧栏 ============ */
.side-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 22px 24px;box-shadow:var(--shadow);}
.side-card h4{margin:0 0 14px;font-size:16px;font-weight:800;color:var(--brand-dark);display:flex;align-items:center;gap:9px;}
.side-card h4 i{color:var(--accent);}
.toc-list{list-style:none;margin:0;padding:0;font-size:14.5px;}
.toc-list li{margin:0 0 4px;}
.toc-list a{display:block;padding:7px 12px;border-radius:10px;color:var(--muted);border-left:2px solid transparent;}
.toc-list a:hover{background:var(--soft);color:var(--brand);border-left-color:var(--brand-light);}
.toc-list .toc-sub a{padding-left:26px;font-size:13.5px;color:var(--weak);}
.side-cta{background:linear-gradient(150deg,var(--brand),var(--brand-dark));border:none;color:#fff;}
.side-cta h4{color:#fff;}
.side-cta h4 i{color:var(--lime);}
.side-cta p{margin:0 0 18px;font-size:14.5px;color:rgba(255,255,255,.82);line-height:1.8;}
.side-links{list-style:none;margin:0;padding:0;font-size:14.5px;}
.side-links li{margin:0 0 6px;}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 12px;border-radius:10px;background:var(--soft);color:var(--muted);}
.side-links a:hover{background:rgba(31,107,79,.14);color:var(--brand);}
.side-links i{font-size:12px;color:var(--weak);}

/* ============ 推荐卡片 ============ */
.rec-grid{margin-top:6px;}
.rec-card{
  display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;transition:transform .28s ease,box-shadow .28s ease;
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.rec-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--soft);}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.rec-card:hover .rec-thumb img{transform:scale(1.03);}
.rec-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.tag{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  padding:4px 12px;border-radius:999px;background:rgba(31,107,79,.1);color:var(--brand-light);
  font-size:12.5px;font-weight:600;margin-bottom:12px;
}
.rec-card h3{margin:0 0 10px;font-size:18px;line-height:1.5;font-weight:700;color:var(--brand-dark);}
.rec-card p{margin:0 0 16px;font-size:14.5px;color:var(--muted);line-height:1.8;}
.rec-more{margin-top:auto;font-size:14px;font-weight:600;color:var(--accent);display:inline-flex;align-items:center;gap:7px;}
.rec-card:hover .rec-more{gap:11px;}
.back-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px;align-items:center;}
.back-row .hint{font-size:14px;color:var(--weak);}

/* ============ CTA 横幅 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:22px;color:#fff;
  background:var(--brand-dark) url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
}
.cta-band::after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(7,42,32,.95),rgba(11,61,46,.78));}
.cta-inner{position:relative;z-index:2;padding:58px 48px;display:flex;flex-wrap:wrap;gap:30px;align-items:center;justify-content:space-between;}
.cta-inner h2{margin:0 0 12px;font-size:32px;line-height:1.3;font-weight:800;color:#fff;}
.cta-inner p{margin:0;max-width:620px;font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.84);}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-dark);color:rgba(255,255,255,.76);margin-top:72px;padding:58px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand b{color:#fff;font-size:17px;}
.footer-brand .brand-mark{width:40px;height:40px;font-size:18px;border-radius:12px;}
.footer-col p{margin:0;font-size:14.5px;line-height:1.85;}
.footer-col h4{margin:0 0 16px;font-size:15px;color:#fff;font-weight:700;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin:0 0 10px;}
.footer-col a{color:rgba(255,255,255,.76);font-size:14.5px;}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{
  margin-top:40px;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:13.5px;color:rgba(255,255,255,.62);
}
.footer-bottom a{color:var(--lime);}

/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
  .article-title{font-size:34px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .side-sticky{position:static;}
  .panel{padding:28px 26px;}
}
@media screen and (max-width:900px){
  .header-inner{flex-wrap:wrap;gap:14px;}
  .brand{flex:1 1 auto;}
  .nav-search{order:3;flex:1 0 100%;max-width:none;}
  .nav-search input[type="search"]{height:48px;}
  .nav-search button{height:36px;top:6px;padding:0 18px;}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .cat-nav.expanded .cat-inner{flex-wrap:wrap;overflow:visible;}
  .cta-inner{padding:44px 26px;}
  .cta-inner h2{font-size:26px;}
}
@media screen and (max-width:640px){
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .article-hero{padding:32px 0 44px;}
  .article-title{font-size:27px;line-height:1.35;}
  .section{padding:44px 0;}
  .section-tight{padding:0 0 44px;}
  .panel{padding:22px 18px;border-radius:14px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:21px;}
  .article-body h3{font-size:18px;}
  .lead-box{font-size:15px;padding:16px 16px;}
  .block-title{font-size:21px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .cta-inner h2{font-size:23px;}
  .cta-inner{padding:36px 20px;}
  .header-actions .btn-ghost{display:none;}
  .brand-text span{display:none;}
}

/* roulang page: category1 */
:root{
  --brand:#0B3D2E;
  --brand-dark:#072A20;
  --brand-light:#1F6B4F;
  --accent:#FF6A2A;
  --accent-soft:#FFB86B;
  --highlight:#C6FF4A;
  --bg:#F5F7F2;
  --panel:#FFFFFF;
  --line:#DCE5DD;
  --text:#14201B;
  --muted:#4B5B53;
  --weak:#7B8A82;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 10px 30px rgba(7,42,32,.08);
  --shadow-lg:0 18px 44px rgba(7,42,32,.14);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,"Helvetica Neue",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;border:0}
a{color:var(--brand-light);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand);text-decoration:underline}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--highlight);outline-offset:2px}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;color:var(--text)}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(198,255,74,.6);color:var(--brand-dark)}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform .22s ease,background .22s ease,box-shadow .22s ease,color .22s ease,border-color .22s ease;
  text-decoration:none;white-space:nowrap;
}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-light);color:#fff;box-shadow:0 14px 28px rgba(7,42,32,.2)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#ff7d45;color:#fff;box-shadow:0 14px 28px rgba(255,106,42,.28)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--brand)}
.btn-ghost:hover{background:#EAF3EC;border-color:var(--brand-light);color:var(--brand)}
.btn-light{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.45);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.22);color:#fff}
.btn-white{background:#fff;color:var(--brand)}
.btn-white:hover{background:#F1F7F0;color:var(--brand)}
.btn-sm{padding:10px 16px;font-size:14px;border-radius:10px}
.btn-lg{padding:16px 30px;font-size:16px}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:22px;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-light) 100%);
  color:#fff;font-size:20px;font-weight:700;letter-spacing:1px;box-shadow:0 8px 18px rgba(7,42,32,.22);
}
.brand-text b{display:block;font-size:17px;color:var(--brand);letter-spacing:.2px;line-height:1.3}
.brand-text span{display:block;font-size:12px;color:var(--weak);letter-spacing:.4px}
.nav-search{
  flex:1 1 auto;min-width:240px;display:flex;align-items:center;gap:10px;
  height:52px;padding:5px 6px 5px 18px;background:#fff;
  border:1px solid var(--line);border-radius:999px;box-shadow:0 6px 18px rgba(7,42,32,.05);
  transition:border-color .22s ease,box-shadow .22s ease;
}
.nav-search:focus-within{border-color:var(--brand-light);box-shadow:0 0 0 4px rgba(31,107,79,.14)}
.nav-search i{color:var(--weak);font-size:15px}
.nav-search input{flex:1;border:0;outline:0;background:transparent;font-size:15px;color:var(--text);font-family:inherit}
.nav-search input::placeholder{color:var(--weak)}
.nav-search button{border:0;background:var(--brand);color:#fff;height:40px;padding:0 22px;border-radius:999px;font-size:14px;font-weight:600;cursor:pointer;font-family:inherit;transition:background .2s ease}
.nav-search button:hover{background:var(--brand-light)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.menu-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--brand);font-size:16px;cursor:pointer}
.cat-nav{border-top:1px solid var(--line);background:#FBFDFA}
.cat-inner{display:flex;gap:10px;overflow-x:auto;padding:12px 20px;scrollbar-width:none}
.cat-inner::-webkit-scrollbar{display:none}
.pill{
  flex:0 0 auto;padding:8px 17px;border-radius:999px;background:#fff;border:1px solid var(--line);
  color:var(--muted);font-size:14px;font-weight:500;text-decoration:none;transition:all .2s ease;
}
.pill:hover{background:#EAF3EC;color:var(--brand);border-color:#C9DED0;text-decoration:none}
.pill.active{background:var(--brand);border-color:var(--brand);color:#fff}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(900px 420px at 88% 8%,rgba(31,107,79,.85) 0%,rgba(31,107,79,0) 62%),
    linear-gradient(140deg,#072A20 0%,#0B3D2E 52%,#114634 100%);
  padding:78px 0 86px;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.45;
  background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:58px 58px;
}
.hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:7px 15px;border-radius:999px;
  background:rgba(198,255,74,.14);border:1px solid rgba(198,255,74,.42);
  color:var(--highlight);font-size:13px;font-weight:600;letter-spacing:.3px;
}
.hero h1{font-size:46px;line-height:1.24;color:#fff;margin:22px 0 18px;letter-spacing:.4px}
.hero h1 em{font-style:normal;color:var(--highlight)}
.hero-lead{font-size:17px;line-height:1.85;color:rgba(255,255,255,.84);max-width:560px;margin-bottom:30px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}
.hero-meta{display:flex;flex-wrap:wrap;gap:26px;padding-top:26px;border-top:1px solid rgba(255,255,255,.16)}
.hero-meta div strong{display:block;font-size:24px;color:var(--highlight);line-height:1.3}
.hero-meta div span{font-size:13px;color:rgba(255,255,255,.7)}
.hero-visual{position:relative}
.hero-visual img{border-radius:22px;box-shadow:0 28px 60px rgba(0,0,0,.36);border:1px solid rgba(255,255,255,.14)}
.hero-badge{
  position:absolute;left:-18px;bottom:26px;background:#fff;color:var(--brand);
  border-radius:14px;padding:14px 18px;box-shadow:var(--shadow-lg);font-size:13px;font-weight:600;line-height:1.5;
}
.hero-badge span{display:block;color:var(--weak);font-weight:400;font-size:12px}

/* ---------- 通用板块 ---------- */
.section{padding:82px 0}
.section-head{max-width:740px;margin-bottom:40px}
.section-head .eyebrow{background:#EAF3EC;border-color:#CDE3D4;color:var(--brand)}
.section-head h2{font-size:32px;margin:16px 0 14px}
.section-head p{color:var(--muted);font-size:16px;line-height:1.85}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ---------- 入口卡片 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.entry-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 24px;display:flex;flex-direction:column;gap:14px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.entry-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:#C9DED0}
.entry-icon{
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;
  background:#EAF3EC;color:var(--brand);font-size:20px;
}
.entry-card h3{font-size:19px}
.entry-card p{font-size:14.5px;color:var(--muted);line-height:1.8;flex:1}
.entry-card .entry-link{font-size:14px;font-weight:600;color:var(--brand-light)}
.entry-card .entry-link i{font-size:12px;margin-left:6px;transition:transform .2s ease}
.entry-card:hover .entry-link i{transform:translateX(3px)}

/* ---------- 步骤条 ---------- */
.steps-wrap{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.step{
  position:relative;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);
  padding:66px 22px 24px;transition:transform .25s ease,box-shadow .25s ease,background .25s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow);background:#fff}
.step-num{
  position:absolute;top:20px;left:22px;width:34px;height:34px;border-radius:10px;
  background:var(--brand);color:#fff;display:grid;place-items:center;font-size:14px;font-weight:700;
}
.step h3{font-size:18px;margin-bottom:10px}
.step p{font-size:14.5px;color:var(--muted);line-height:1.8}
.step-line{position:absolute;top:36px;right:-14px;color:#BFD4C6;font-size:14px}

/* ---------- 图文检查清单 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.split-media img{border-radius:20px;box-shadow:var(--shadow-lg)}
.check-list{display:grid;gap:16px;margin-top:26px}
.check-item{
  display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:18px 20px;transition:box-shadow .22s ease,transform .22s ease;
}
.check-item:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.check-item i{color:var(--brand-light);font-size:17px;margin-top:5px}
.check-item b{display:block;font-size:16px;margin-bottom:4px}
.check-item span{font-size:14.5px;color:var(--muted);line-height:1.75}

/* ---------- 安全提示 ---------- */
.safety{background:var(--brand);color:#fff;border-radius:24px;padding:48px 44px;position:relative;overflow:hidden}
.safety::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,255,74,.22),transparent 68%);
}
.safety h2{color:#fff;font-size:28px;margin-bottom:12px}
.safety > p{color:rgba(255,255,255,.8);max-width:640px;margin-bottom:32px}
.safety-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;position:relative;z-index:2}
.safety-item{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:var(--radius);padding:24px}
.safety-item b{display:block;color:var(--highlight);font-size:15px;margin-bottom:10px}
.safety-item p{font-size:14.5px;color:rgba(255,255,255,.82);line-height:1.8}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:transparent;border:0;border-left:4px solid transparent;
  padding:22px 18px;font-family:inherit;font-size:17px;font-weight:700;color:var(--text);
  text-align:left;cursor:pointer;transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.faq-q:hover{background:#F0F5EF;color:var(--brand)}
.faq-q i{color:var(--brand-light);font-size:14px;transition:transform .25s ease;flex:0 0 auto}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease}
.faq-a p{font-size:15.5px;line-height:1.85;color:var(--muted);padding:0 22px}
.faq-item.open .faq-q{border-left-color:var(--brand);background:#F0F5EF;color:var(--brand)}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-item.open .faq-a{max-height:340px;padding-bottom:22px}

/* ---------- CTA 横幅 ---------- */
.cta-band{
  background:linear-gradient(120deg,#0B3D2E 0%,#155440 62%,#1F6B4F 100%);
  border-radius:26px;padding:56px 48px;color:#fff;position:relative;overflow:hidden;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;bottom:-110px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,42,.35),transparent 66%);
}
.cta-band .cta-text{position:relative;z-index:2;max-width:620px}
.cta-band h2{color:#fff;font-size:30px;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.82);font-size:16px}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-dark);color:rgba(255,255,255,.78);margin-top:88px;padding:64px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:12px;color:#fff;margin-bottom:16px}
.footer-brand .brand-mark{width:40px;height:40px;border-radius:12px;font-size:17px;background:linear-gradient(135deg,#1F6B4F,#2C8A64)}
.footer-brand b{font-size:16px}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);margin:0}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer-col ul li{margin-bottom:11px}
.footer-col ul a{color:rgba(255,255,255,.7);font-size:14px}
.footer-col ul a:hover{color:var(--highlight);text-decoration:none}
.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,.55);
}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:var(--highlight);text-decoration:none}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .header-inner{flex-wrap:wrap;gap:14px}
  .nav-search{order:3;flex:1 1 100%;min-width:0}
  .brand{order:1}
  .header-actions{order:2;margin-left:auto}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center}
  .hero{padding:60px 0 68px}
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .hero h1{font-size:36px}
  .hero-visual{max-width:640px}
  .entry-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step-line{display:none}
  .split{grid-template-columns:1fr;gap:34px}
  .safety-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .section{padding:64px 0}
}
@media screen and (max-width:767px){
  .cat-nav.open .cat-inner{flex-wrap:wrap;overflow:visible}
  .cat-nav.open .pill{flex:1 1 calc(50% - 10px);text-align:center}
  .brand-text b{font-size:15px}
  .brand-text span{display:none}
  .hero h1{font-size:29px}
  .hero-lead{font-size:15.5px}
  .hero-meta{gap:20px}
  .hero-meta div strong{font-size:20px}
  .section-head h2{font-size:25px}
  .cta-band{padding:40px 26px;border-radius:20px}
  .cta-band h2{font-size:24px}
  .safety{padding:36px 24px;border-radius:20px}
  .safety h2{font-size:23px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding:48px 0 22px;margin-top:64px}
}
@media screen and (max-width:520px){
  .entry-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .hero-meta{flex-direction:column;gap:14px}
  .hero-cta .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .faq-q{font-size:16px;padding:18px 14px}
  .faq-a p{padding:0 16px}
}

/* roulang page: category3 */
:root{
  --brand:#0B3D2E;
  --brand-dark:#072A20;
  --brand-light:#1F6B4F;
  --accent:#FF6A2A;
  --accent-light:#FFB86B;
  --highlight:#C6FF4A;
  --bg:#F5F7F2;
  --panel:#FFFFFF;
  --line:#DCE5DD;
  --soft:#E8EEE8;
  --text:#14201B;
  --text-2:#4B5B53;
  --text-3:#7B8A82;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 10px 30px rgba(7,42,32,.08);
  --shadow-lg:0 18px 46px rgba(7,42,32,.14);
  --space:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand-light);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand);}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--highlight);outline-offset:2px;}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:800;color:var(--text);}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
::selection{background:rgba(198,255,74,.55);color:var(--brand-dark);}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
.section{padding:88px 0;}
.section-sm{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--brand-light);text-transform:uppercase;
  background:var(--soft);border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.section-head h2{font-size:32px;margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:16.5px;margin:0;}

/* ---------- Header ---------- */
.site-header{background:rgba(245,247,242,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:60;}
.header-top{padding:16px 0;}
.header-inner{display:flex;align-items:center;gap:22px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:44px;height:44px;border-radius:14px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--brand),var(--brand-light));
  color:#fff;font-weight:800;font-size:20px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text b{font-size:16px;color:var(--brand-dark);letter-spacing:.01em;}
.brand-text span{font-size:12.5px;color:var(--text-3);}
.nav-search{
  flex:1 1 auto;display:flex;align-items:center;gap:10px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:6px 6px 6px 20px;height:54px;
  box-shadow:0 4px 16px rgba(7,42,32,.05);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{border-color:var(--brand-light);box-shadow:0 0 0 4px rgba(31,107,79,.14);}
.nav-search i{color:var(--text-3);font-size:15px;}
.nav-search input{
  flex:1 1 auto;border:0;background:transparent;font-size:15.5px;color:var(--text);
  height:40px;outline:none;min-width:0;
}
.nav-search input::placeholder{color:#9AAAA2;}
.nav-search button{
  border:0;cursor:pointer;border-radius:999px;
  background:var(--brand);color:#fff;font-weight:700;font-size:15px;
  padding:10px 22px;transition:background .2s ease,transform .2s ease;
}
.nav-search button:hover{background:var(--brand-light);transform:translateY(-1px);}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.menu-toggle{
  display:none;border:1px solid var(--line);background:#fff;color:var(--brand);
  width:42px;height:42px;border-radius:12px;cursor:pointer;font-size:16px;
}
.cat-nav{border-top:1px solid var(--line);background:#fff;}
.cat-inner{display:flex;gap:10px;align-items:center;overflow-x:auto;padding-top:12px;padding-bottom:12px;scrollbar-width:none;}
.cat-inner::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;font-size:14.5px;font-weight:600;color:var(--text-2);
  background:var(--soft);border-radius:999px;padding:9px 18px;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.pill:hover{background:rgba(31,107,79,.16);color:var(--brand);transform:translateY(-1px);}
.pill.active{background:var(--brand);color:#fff;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:700;font-size:15px;
  padding:13px 26px;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-lg{padding:16px 34px;font-size:16.5px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 22px rgba(11,61,46,.22);}
.btn-primary:hover{background:var(--brand-light);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(11,61,46,.28);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 22px rgba(255,106,42,.26);}
.btn-accent:hover{background:#F0571A;color:#fff;transform:translateY(-2px);box-shadow:0 14px 32px rgba(255,106,42,.32);}
.btn-ghost{background:transparent;color:var(--brand);border-color:rgba(11,61,46,.28);}
.btn-ghost:hover{background:rgba(11,61,46,.08);color:var(--brand-dark);}
.btn-light{background:#fff;color:var(--brand-dark);}
.btn-light:hover{background:var(--highlight);color:var(--brand-dark);transform:translateY(-2px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.5);}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#072A20 0%,#0B3D2E 52%,#14503A 100%);
  color:#fff;padding:74px 0 84px;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 78% 26%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 78% 26%,#000 0%,transparent 72%);
}
.hero .container{position:relative;z-index:2;}
.crumb{font-size:13.5px;color:rgba(255,255,255,.68);margin-bottom:20px;}
.crumb a{color:rgba(255,255,255,.88);}
.crumb a:hover{color:var(--highlight);}
.crumb span{margin:0 8px;opacity:.6;}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:52px;align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(198,255,74,.16);color:var(--highlight);
  border:1px solid rgba(198,255,74,.38);
  border-radius:999px;padding:6px 16px;font-size:13.5px;font-weight:700;margin-bottom:20px;
}
.hero h1{font-size:44px;color:#fff;letter-spacing:-.01em;margin-bottom:18px;}
.hero h1 em{font-style:normal;color:var(--highlight);}
.hero-lead{font-size:17px;line-height:1.85;color:rgba(255,255,255,.82);max-width:560px;margin-bottom:30px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:34px;}
.hero-stats div b{display:block;font-size:26px;color:var(--highlight);font-family:Inter,sans-serif;line-height:1.2;}
.hero-stats div span{font-size:13.5px;color:rgba(255,255,255,.7);}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;border-radius:22px;box-shadow:0 24px 60px rgba(0,0,0,.35);
  border:1px solid rgba(255,255,255,.16);
}
.hero-visual .float-card{
  position:absolute;left:-22px;bottom:26px;
  background:#fff;color:var(--text);border-radius:14px;
  padding:14px 18px;box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:12px;
  max-width:290px;
}
.hero-visual .float-card i{
  width:38px;height:38px;border-radius:11px;background:var(--soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:16px;flex:0 0 auto;
}
.hero-visual .float-card b{display:block;font-size:14.5px;}
.hero-visual .float-card span{font-size:12.5px;color:var(--text-3);}

/* ---------- Device cards ---------- */
.device-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;height:100%;display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.device-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(31,107,79,.34);}
.device-icon{
  width:48px;height:48px;border-radius:14px;background:var(--soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:16px;
}
.device-card h3{font-size:19px;margin-bottom:10px;}
.device-card p{font-size:15px;color:var(--text-2);margin-bottom:16px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;}
.tag{
  font-size:12.5px;font-weight:600;color:var(--brand-light);
  background:rgba(31,107,79,.1);border-radius:999px;padding:5px 12px;
}
.tag-accent{color:#B5420F;background:rgba(255,106,42,.14);}
.tag-hl{color:#3C5700;background:rgba(198,255,74,.34);}

/* ---------- Steps (alternating) ---------- */
.step-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:44px 0;border-bottom:1px solid var(--line);}
.step-row:last-child{border-bottom:0;}
.step-row.reverse .step-media{order:2;}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:13px;background:var(--brand);color:#fff;
  font-weight:800;font-family:Inter,sans-serif;font-size:17px;margin-bottom:16px;
}
.step-row h3{font-size:25px;margin-bottom:12px;}
.step-row p{color:var(--text-2);font-size:16px;}
.step-list{margin-top:14px;}
.step-list li{position:relative;padding-left:26px;margin-bottom:9px;color:var(--text-2);font-size:15.5px;}
.step-list li::before{
  content:"";position:absolute;left:0;top:.68em;width:9px;height:9px;border-radius:3px;
  background:var(--highlight);box-shadow:0 0 0 3px rgba(198,255,74,.24);
}
.step-media img{width:100%;border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--line);}

/* ---------- Settings strip ---------- */
.setting-wrap{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:12px;box-shadow:var(--shadow);}
.setting-item{display:flex;gap:18px;padding:22px 20px;border-bottom:1px dashed var(--line);}
.setting-item:last-child{border-bottom:0;}
.setting-item .num{
  flex:0 0 auto;width:38px;height:38px;border-radius:11px;
  background:var(--soft);color:var(--brand);font-weight:800;font-family:Inter,sans-serif;
  display:flex;align-items:center;justify-content:center;font-size:15px;
}
.setting-item h4{font-size:17.5px;margin-bottom:6px;}
.setting-item p{margin:0;color:var(--text-2);font-size:15.5px;}

/* ---------- FAQ ---------- */
.faq-list{background:var(--panel);border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow);}
.faq-item{border-bottom:1px solid var(--line);position:relative;}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;text-align:left;background:transparent;border:0;cursor:pointer;
  padding:22px 60px 22px 26px;font-size:17.5px;font-weight:700;color:var(--text);
  position:relative;line-height:1.5;transition:color .2s ease,background .2s ease;
}
.faq-q::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:24px;top:50%;transform:translateY(-50%);
  font-size:14px;color:var(--brand-light);transition:transform .25s ease;
}
.faq-q:hover{color:var(--brand-light);background:rgba(232,238,232,.42);}
.faq-item.open .faq-q::after{transform:translateY(-50%) rotate(180deg);}
.faq-item.open .faq-q{color:var(--brand);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;border-left:4px solid transparent;}
.faq-item.open .faq-a{border-left-color:var(--brand);background:rgba(245,247,242,.7);}
.faq-a-inner{padding:4px 30px 24px 30px;color:var(--text-2);line-height:1.85;font-size:15.8px;}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(120deg,#072A20 0%,#0B3D2E 60%,#1F6B4F 100%);
  border-radius:26px;padding:58px 52px;color:#fff;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,255,74,.22),transparent 70%);
}
.cta-band-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.4fr .6fr;gap:36px;align-items:center;}
.cta-band h2{color:#fff;font-size:30px;margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.82);margin-bottom:26px;max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-side{display:flex;flex-direction:column;gap:12px;}
.cta-side div{
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);
  border-radius:14px;padding:14px 18px;font-size:14.5px;color:rgba(255,255,255,.9);
  display:flex;align-items:center;gap:10px;
}
.cta-side i{color:var(--highlight);}

/* ---------- Footer ---------- */
.site-footer{background:var(--brand-dark);color:rgba(255,255,255,.76);padding:64px 0 26px;margin-top:20px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand b{color:#fff;font-size:16.5px;}
.footer-col p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.68);margin:0;max-width:360px;}
.footer-col h4{color:#fff;font-size:15.5px;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{color:rgba(255,255,255,.72);font-size:14.5px;}
.footer-col ul li a:hover{color:var(--highlight);}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;padding-top:22px;font-size:13.5px;color:rgba(255,255,255,.6);}
.footer-bottom a{color:rgba(255,255,255,.8);}
.footer-bottom a:hover{color:var(--highlight);}

/* ---------- Responsive ---------- */
@media screen and (max-width:1023px){
  .hero-grid{grid-template-columns:1fr;gap:38px;}
  .hero h1{font-size:34px;}
  .hero-visual .float-card{left:12px;bottom:12px;}
  .section{padding:64px 0;}
  .step-row{grid-template-columns:1fr;gap:28px;padding:34px 0;}
  .step-row.reverse .step-media{order:0;}
  .cta-band-inner{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .header-inner{flex-wrap:wrap;}
  .nav-search{order:3;flex:1 0 100%;height:50px;}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .cat-nav{display:none;}
  .cat-nav.open{display:block;}
  .cat-inner{flex-wrap:wrap;overflow:visible;}
}
@media screen and (max-width:767px){
  body{font-size:16px;}
  .hero{padding:52px 0 60px;}
  .hero h1{font-size:29px;}
  .hero-lead{font-size:16px;}
  .hero-cta .btn{flex:1 1 auto;}
  .section{padding:52px 0;}
  .section-head h2{font-size:25px;}
  .cta-band{padding:38px 24px;border-radius:20px;}
  .cta-band h2{font-size:24px;}
  .faq-q{font-size:16.2px;padding:18px 52px 18px 20px;}
  .faq-a-inner{padding:0 22px 20px 22px;}
  .step-row h3{font-size:21px;}
  .hero-stats{gap:22px;}
  .hero-stats div b{font-size:22px;}
}
@media screen and (max-width:519px){
  .container{padding:0 16px;}
  .brand-text span{display:none;}
  .brand-text b{font-size:15px;}
  .header-actions{gap:8px;}
  .header-actions .btn-ghost{display:none;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .device-card{padding:22px 18px;}
}

/* roulang page: category2 */
:root{
  --brand:#0B3D2E;
  --brand-dark:#072A20;
  --brand-light:#1F6B4F;
  --accent:#FF6A2A;
  --accent-soft:#FFB86B;
  --highlight:#C6FF4A;
  --bg:#F5F7F2;
  --panel:#FFFFFF;
  --line:#DCE5DD;
  --soft:#E8EEE8;
  --text:#14201B;
  --muted:#4B5B53;
  --weak:#7B8A82;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 10px 30px rgba(7,42,32,.08);
  --shadow-lift:0 18px 40px rgba(7,42,32,.14);
  --fs-h1:46px;
  --fs-h2:31px;
  --fs-h3:22px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-light);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent);}
h1,h2,h3,h4{line-height:1.28;margin:0;font-weight:700;color:var(--brand-dark);letter-spacing:.2px;}
p{margin:0 0 1.05em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
::selection{background:rgba(198,255,74,.6);color:#072A20;}
:focus-visible{outline:2px solid var(--highlight);outline-offset:2px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
.grid-x{margin-left:-14px;margin-right:-14px;}
.grid-x>.cell{padding-left:14px;padding-right:14px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  text-align:center;white-space:nowrap;
}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-lg{padding:15px 32px;font-size:16.5px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(11,61,46,.22);}
.btn-primary:hover{background:var(--brand-light);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-lift);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 22px rgba(255,106,42,.28);}
.btn-accent:hover{background:#F2571A;color:#fff;transform:translateY(-2px);box-shadow:0 18px 34px rgba(255,106,42,.34);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--brand);}
.btn-ghost:hover{background:var(--soft);color:var(--brand-dark);border-color:var(--brand-light);}
.btn-outline-light{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.55);color:#fff;}
.btn-outline-light:hover{background:#fff;color:var(--brand-dark);border-color:#fff;transform:translateY(-2px);}
.btn:active{transform:translateY(0);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  box-shadow:0 4px 18px rgba(7,42,32,.05);
}
.header-top{padding:14px 0 10px;}
.header-inner{position:relative;display:flex;align-items:center;gap:18px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:44px;height:44px;flex:0 0 44px;border-radius:13px;
  background:linear-gradient(140deg,var(--brand) 0%,var(--brand-light) 100%);
  color:#fff;font-size:20px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px rgba(11,61,46,.24);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text b{font-size:17px;color:var(--brand-dark);letter-spacing:.3px;}
.brand-text span{font-size:12px;color:var(--weak);letter-spacing:.4px;}
.nav-search{
  flex:1 1 auto;min-width:220px;display:flex;align-items:center;gap:10px;
  height:52px;padding:6px 6px 6px 20px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{border-color:var(--brand-light);box-shadow:0 0 0 4px rgba(31,107,79,.14);}
.nav-search i{color:var(--weak);font-size:15px;}
.nav-search input{
  flex:1 1 auto;min-width:0;border:0;outline:none;background:transparent;
  font-size:15px;color:var(--text);padding:0;
}
.nav-search input::placeholder{color:#9AA8A0;}
.nav-search button{
  border:0;border-radius:999px;background:var(--brand);color:#fff;
  padding:10px 20px;font-size:14.5px;font-weight:600;cursor:pointer;
  transition:background-color .2s ease,transform .2s ease;
}
.nav-search button:hover{background:var(--brand-light);transform:translateY(-1px);}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--brand);
  font-size:17px;cursor:pointer;align-items:center;justify-content:center;
}
.menu-toggle:hover{background:var(--soft);}

.cat-nav{border-top:1px solid var(--line);background:linear-gradient(180deg,#fff 0%,#FBFCF9 100%);}
.cat-inner{display:flex;gap:10px;overflow-x:auto;padding-top:10px;padding-bottom:10px;scrollbar-width:none;}
.cat-inner::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;padding:8px 18px;border-radius:999px;
  background:var(--soft);color:var(--muted);font-size:14.5px;font-weight:500;
  border:1px solid transparent;transition:all .2s ease;
}
.pill:hover{background:#DDEAE0;color:var(--brand-dark);transform:translateY(-1px);}
.pill.active{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(11,61,46,.22);}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--brand-dark);color:#fff;}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;opacity:.3;}
.hero-veil{position:absolute;inset:0;background:linear-gradient(112deg,rgba(7,42,32,.96) 0%,rgba(7,42,32,.82) 48%,rgba(7,42,32,.6) 100%);}
.hero-grid-lines{
  position:absolute;inset:0;opacity:.18;
  background-image:linear-gradient(rgba(198,255,74,.28) 1px,transparent 1px),linear-gradient(90deg,rgba(198,255,74,.28) 1px,transparent 1px);
  background-size:64px 64px;
}
.hero-inner{position:relative;z-index:2;padding:70px 0 78px;}
.hero-copy{max-width:640px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:999px;
  background:rgba(198,255,74,.14);border:1px solid rgba(198,255,74,.4);
  color:var(--highlight);font-size:13.5px;font-weight:600;letter-spacing:.6px;
}
.hero h1{
  color:#fff;font-size:var(--fs-h1);margin:22px 0 18px;line-height:1.22;
}
.hero-sub{color:rgba(255,255,255,.86);font-size:17px;line-height:1.85;margin-bottom:26px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;}
.hero-points li{display:flex;align-items:center;gap:8px;color:rgba(255,255,255,.88);font-size:14.5px;}
.hero-points i{color:var(--highlight);}
.hero-media{position:relative;margin-top:34px;}
.hero-media img{border-radius:20px;box-shadow:0 26px 50px rgba(0,0,0,.35);border:1px solid rgba(255,255,255,.16);}
.hero-stat{
  position:absolute;left:-6px;bottom:-22px;width:min(280px,86%);
  background:#fff;color:var(--text);border-radius:var(--radius);
  padding:16px 18px;box-shadow:var(--shadow-lift);
}
.hero-stat b{display:block;font-size:14px;color:var(--brand-dark);margin-bottom:6px;}
.hero-stat span{font-size:13.5px;color:var(--muted);line-height:1.7;display:block;}

/* ---------- 通用板块 ---------- */
.section{padding:82px 0;}
.section-tight{padding:64px 0;}
.section-soft{background:var(--panel);}
.section-head{max-width:760px;margin-bottom:38px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-tag{
  display:inline-block;padding:5px 14px;border-radius:999px;
  background:rgba(31,107,79,.1);color:var(--brand-light);
  font-size:13px;font-weight:700;letter-spacing:.8px;margin-bottom:14px;
}
.section-head h2{font-size:var(--fs-h2);margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16px;}

/* ---------- 权益对比 ---------- */
.compare-wrap{
  background:var(--panel);border:1px solid var(--line);border-radius:22px;
  padding:8px;box-shadow:var(--shadow);overflow:hidden;
}
table.compare{width:100%;border-collapse:separate;border-spacing:0;margin:0;background:transparent;}
table.compare th,table.compare td{
  padding:18px 20px;text-align:left;font-size:15px;border-bottom:1px solid var(--line);
  vertical-align:middle;
}
table.compare thead th{
  font-size:15px;color:var(--brand-dark);font-weight:700;
  background:#F7FAF6;border-bottom:1px solid var(--line);
}
table.compare thead th:first-child{border-top-left-radius:14px;}
table.compare thead th:last-child{border-top-right-radius:14px;}
table.compare tbody tr:last-child td{border-bottom:0;}
table.compare tbody tr:hover td{background:#FAFCF8;}
table.compare td:first-child{font-weight:600;color:var(--text);}
.col-reco{background:rgba(31,107,79,.07)!important;position:relative;}
.col-reco .reco-badge{
  display:inline-block;margin-left:8px;padding:2px 9px;border-radius:999px;
  background:var(--highlight);color:#233A0B;font-size:11.5px;font-weight:700;
  vertical-align:middle;
}
td.col-reco{color:var(--brand-dark);font-weight:600;}
.compare-note{margin-top:18px;display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;}
.compare-note p{color:var(--weak);font-size:13.5px;margin:0;}

.compare-mobile{display:none;}
.cmp-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 20px;margin-bottom:14px;box-shadow:var(--shadow);
}
.cmp-card h4{font-size:16px;margin-bottom:12px;color:var(--brand-dark);}
.cmp-row{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-top:1px dashed var(--line);font-size:14.5px;}
.cmp-row:first-of-type{border-top:0;}
.cmp-row .cmp-label{color:var(--weak);flex:0 0 84px;}
.cmp-row .cmp-val{color:var(--text);text-align:right;flex:1 1 auto;}
.cmp-row.reco{background:rgba(31,107,79,.07);border-radius:10px;padding:9px 12px;border-top:0;}
.cmp-row.reco .cmp-val{color:var(--brand-dark);font-weight:600;}

/* ---------- 等级卡 ---------- */
.tier-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--panel);border:1px solid var(--line);border-radius:20px;
  padding:26px 24px;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.tier-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lift);border-color:#C9DACF;}
.tier-badge{
  display:inline-flex;align-items:center;gap:7px;align-self:flex-start;
  padding:5px 14px;border-radius:999px;background:var(--soft);
  color:var(--brand-light);font-size:12.5px;font-weight:700;letter-spacing:.6px;margin-bottom:16px;
}
.tier-card h3{font-size:21px;margin-bottom:10px;}
.tier-desc{color:var(--muted);font-size:14.5px;margin-bottom:18px;min-height:52px;}
.tier-list{flex:1 1 auto;margin-bottom:22px;}
.tier-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--muted);padding:7px 0;border-bottom:1px dashed var(--line);
}
.tier-list li:last-child{border-bottom:0;}
.tier-list i{color:var(--brand-light);margin-top:6px;font-size:12px;}
.tier-card .btn{width:100%;}
.tier-card.featured{
  background:linear-gradient(165deg,var(--brand-dark) 0%,var(--brand) 100%);
  border-color:var(--brand);color:#fff;box-shadow:0 22px 46px rgba(7,42,32,.28);
  transform:translateY(-8px);
}
.tier-card.featured:hover{transform:translateY(-13px);}
.tier-card.featured h3,.tier-card.featured .tier-badge{color:#fff;}
.tier-card.featured .tier-badge{background:rgba(198,255,74,.16);color:var(--highlight);}
.tier-card.featured .tier-desc{color:rgba(255,255,255,.82);}
.tier-card.featured .tier-list li{color:rgba(255,255,255,.85);border-bottom-color:rgba(255,255,255,.16);}
.tier-card.featured .tier-list i{color:var(--highlight);}

/* ---------- 专属内容卡 ---------- */
.content-card{
  display:flex;flex-direction:column;height:100%;background:var(--panel);
  border:1px solid var(--line);border-radius:20px;overflow:hidden;
  box-shadow:var(--shadow);transition:transform .22s ease,box-shadow .22s ease;
}
.content-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);}
.content-thumb{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--soft);}
.content-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.content-card:hover .content-thumb img{transform:scale(1.04);}
.content-tag{
  position:absolute;left:14px;top:14px;padding:5px 13px;border-radius:999px;
  background:rgba(7,42,32,.82);color:#fff;font-size:12.5px;font-weight:600;backdrop-filter:blur(4px);
}
.content-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.content-body h3{font-size:18.5px;margin-bottom:10px;}
.content-body p{color:var(--muted);font-size:14.5px;margin-bottom:16px;}
.content-link{margin-top:auto;font-size:14.5px;font-weight:600;display:inline-flex;align-items:center;gap:7px;}
.content-link i{font-size:12px;transition:transform .2s ease;}
.content-link:hover i{transform:translateX(4px);}

/* ---------- 步骤条 ---------- */
.steps{counter-reset:step;}
.step-item{
  position:relative;background:var(--panel);border:1px solid var(--line);border-radius:18px;
  padding:26px 22px;height:100%;box-shadow:var(--shadow);transition:transform .2s ease;
}
.step-item:hover{transform:translateY(-4px);}
.step-num{
  width:40px;height:40px;border-radius:12px;background:rgba(31,107,79,.1);
  color:var(--brand-light);font-weight:700;font-size:17px;
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.step-item h3{font-size:18px;margin-bottom:10px;}
.step-item p{color:var(--muted);font-size:14.5px;margin:0;}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;margin:0 auto;background:var(--panel);border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow);}
.faq-item{border-bottom:1px solid var(--line);transition:box-shadow .2s ease;}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 26px;background:transparent;border:0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--brand-dark);line-height:1.5;
}
.faq-q:hover{color:var(--brand-light);}
.faq-q i{color:var(--brand-light);font-size:14px;transition:transform .25s ease;flex:0 0 auto;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
.faq-a div{padding:0 26px 24px;color:var(--muted);font-size:15.5px;line-height:1.85;}
.faq-item.open{box-shadow:inset 3px 0 0 var(--brand-light);background:#FBFDF9;}
.faq-item.open .faq-q i{transform:rotate(180deg);}

/* ---------- CTA 横幅 ---------- */
.cta-band{
  position:relative;overflow:hidden;background:linear-gradient(120deg,var(--brand-dark) 0%,var(--brand) 62%,#155C42 100%);
  color:#fff;border-radius:26px;padding:56px 48px;
}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,255,74,.3) 0%,rgba(198,255,74,0) 68%);
}
.cta-band-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;}
.cta-band h2{color:#fff;font-size:30px;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.85);font-size:16px;max-width:620px;margin:0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-dark);color:rgba(255,255,255,.78);padding:64px 0 26px;margin-top:8px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px;}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px;}
.footer-brand .brand-mark{width:40px;height:40px;flex:0 0 40px;border-radius:12px;background:rgba(255,255,255,.12);color:var(--highlight);font-size:18px;}
.footer-brand b{color:#fff;font-size:16.5px;}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);margin:0;}
.footer-col h4{color:#fff;font-size:15.5px;margin-bottom:16px;letter-spacing:.5px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul a{color:rgba(255,255,255,.72);font-size:14.5px;}
.footer-col ul a:hover{color:var(--highlight);}
.footer-bottom{
  margin-top:42px;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:13.5px;color:rgba(255,255,255,.6);
}
.footer-bottom a{color:var(--highlight);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  :root{--fs-h1:38px;--fs-h2:28px;}
  .section{padding:66px 0;}
  .hero-inner{padding:56px 0 66px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .tier-card.featured{transform:none;}
  .tier-card.featured:hover{transform:translateY(-6px);}
}
@media screen and (max-width:767px){
  :root{--fs-h1:31px;--fs-h2:25px;--fs-h3:19px;}
  body{font-size:16px;}
  .section{padding:52px 0;}
  .hero-inner{padding:44px 0 56px;}
  .hero-sub{font-size:15.5px;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn{width:100%;}
  .hero-media{margin-top:26px;}
  .hero-stat{position:static;width:100%;margin-top:14px;}
  .header-top{padding:12px 0 10px;}
  .header-inner{flex-wrap:wrap;gap:12px;}
  .nav-search{order:3;flex:1 0 100%;min-width:0;height:50px;padding-left:16px;}
  .nav-search button{padding:9px 16px;}
  .header-actions .btn{display:none;}
  .menu-toggle{display:inline-flex;}
  body.nav-open .header-actions{
    position:absolute;top:calc(100% + 8px);right:0;z-index:60;
    display:flex;flex-direction:column;align-items:stretch;gap:8px;
    background:#fff;border:1px solid var(--line);border-radius:16px;
    padding:12px;box-shadow:var(--shadow-lift);min-width:190px;
  }
  body.nav-open .header-actions .btn{display:inline-flex;width:100%;}
  .compare-desktop{display:none;}
  .compare-mobile{display:block;}
  .cta-band{padding:38px 24px;border-radius:20px;}
  .cta-band h2{font-size:24px;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .faq-q{font-size:16px;padding:18px 20px;}
  .faq-a div{padding:0 20px 20px;font-size:15px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .site-footer{padding:48px 0 22px;}
}
@media screen and (max-width:520px){
  .footer-grid{grid-template-columns:1fr;}
  .brand-text span{display:none;}
  .brand-text b{font-size:15.5px;}
  .category-intro .section-head h2{font-size:24px;}
}

/* roulang page: category4 */
:root{
  --brand:#0B3D2E;
  --brand-dark:#072A20;
  --brand-light:#1F6B4F;
  --accent:#FF6A2A;
  --accent-soft:#FFB86B;
  --glow:#C6FF4A;
  --bg:#F5F7F2;
  --panel:#FFFFFF;
  --line:#DCE5DD;
  --line-soft:#E8EEE8;
  --text:#14201B;
  --muted:#4B5B53;
  --weak:#7B8A82;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 10px 30px rgba(7,42,32,.08);
  --shadow-lg:0 18px 44px rgba(7,42,32,.14);
  --space:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",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(--brand-light);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent);}
button,input{font-family:inherit;font-size:inherit;}
::selection{background:rgba(198,255,74,.55);color:var(--brand-dark);}
:focus-visible{outline:2px solid var(--glow);outline-offset:2px;}

.container{width:100%;max-width:1220px;margin:0 auto;padding:0 20px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-top{padding:14px 0 10px;}
.header-inner{
  display:flex;align-items:center;gap:22px;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:44px;height:44px;border-radius:14px;
  background:linear-gradient(145deg,var(--brand-light),var(--brand-dark));
  color:#fff;font-weight:800;font-size:20px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px rgba(7,42,32,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text b{font-size:17px;letter-spacing:.2px;}
.brand-text span{font-size:12px;color:var(--weak);}

.nav-search{
  flex:1 1 auto;display:flex;align-items:center;gap:10px;
  min-height:52px;padding:0 8px 0 18px;
  background:#fff;border:1.5px solid var(--line);
  border-radius:999px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search i{color:var(--brand-light);font-size:15px;}
.nav-search input{
  flex:1 1 auto;border:0;outline:none;background:transparent;
  font-size:15px;color:var(--text);min-width:0;
}
.nav-search input::placeholder{color:var(--weak);}
.nav-search:focus-within{
  border-color:var(--brand-light);
  box-shadow:0 0 0 4px rgba(31,107,79,.14);
}
.nav-search button{
  border:0;cursor:pointer;
  padding:10px 22px;border-radius:999px;
  background:var(--brand);color:#fff;font-size:14px;font-weight:600;
  transition:background .2s ease,transform .2s ease;
}
.nav-search button:hover{background:var(--brand-dark);transform:translateY(-1px);}

.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1.5px solid var(--line);background:#fff;color:var(--brand);
  cursor:pointer;font-size:17px;
}
.menu-toggle:hover{border-color:var(--brand-light);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;border:1.5px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(7,42,32,.18);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(255,106,42,.26);}
.btn-accent:hover{background:#ED5A1B;color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,106,42,.32);}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--line);}
.btn-ghost:hover{background:rgba(31,107,79,.08);border-color:var(--brand-light);color:var(--brand-dark);}
.btn-light{background:#fff;color:var(--brand-dark);}
.btn-light:hover{background:var(--glow);color:var(--brand-dark);transform:translateY(-2px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}

.cat-nav{border-top:1px solid var(--line-soft);background:rgba(245,247,242,.7);}
.cat-inner{
  display:flex;gap:10px;align-items:center;
  padding:9px 20px;overflow-x:auto;scrollbar-width:none;
}
.cat-inner::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;padding:8px 18px;border-radius:999px;
  font-size:14px;color:var(--muted);background:transparent;
  border:1.5px solid transparent;white-space:nowrap;
  transition:all .2s ease;
}
.pill:hover{background:rgba(31,107,79,.1);color:var(--brand-dark);}
.pill.active{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(7,42,32,.18);}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--brand-dark);
  color:#fff;
  padding:76px 0 68px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  opacity:.26;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    repeating-linear-gradient(115deg,rgba(255,255,255,.05) 0 2px,transparent 2px 26px),
    linear-gradient(90deg,rgba(7,42,32,.94) 0%,rgba(7,42,32,.72) 48%,rgba(7,42,32,.34) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:999px;
  background:rgba(198,255,74,.16);color:var(--glow);
  border:1px solid rgba(198,255,74,.4);
  font-size:13px;letter-spacing:.4px;margin-bottom:20px;
}
h1{
  font-size:44px;line-height:1.24;margin:0 0 18px;font-weight:800;letter-spacing:-.4px;
}
h1 em{font-style:normal;color:var(--glow);}
.hero-lead{
  font-size:17px;line-height:1.9;color:rgba(255,255,255,.86);
  max-width:620px;margin:0 0 26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px;}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:640px;}
.stat{
  padding:16px 18px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
}
.stat b{display:block;font-size:22px;font-weight:800;color:var(--glow);font-family:Inter,"Noto Sans SC",sans-serif;}
.stat span{font-size:13px;color:rgba(255,255,255,.78);}
.hero-visual{
  position:relative;border-radius:22px;overflow:hidden;
  border:1px solid rgba(255,255,255,.2);
  box-shadow:0 24px 60px rgba(0,0,0,.34);
}
.hero-visual img{width:100%;height:340px;object-fit:cover;}
.hero-visual .badge-float{
  position:absolute;left:18px;bottom:18px;
  background:rgba(255,255,255,.94);color:var(--brand-dark);
  padding:10px 16px;border-radius:12px;font-size:13px;font-weight:600;
  display:flex;align-items:center;gap:8px;
}
.hero-visual .badge-float i{color:var(--accent);}

/* ---------- section ---------- */
.section{padding:82px 0;}
.section.alt{background:#fff;}
.section.tight{padding:62px 0;}
.section-head{max-width:760px;margin-bottom:42px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-kicker{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:1.4px;
  color:var(--brand-light);text-transform:uppercase;margin-bottom:10px;
}
h2{font-size:31px;line-height:1.32;margin:0 0 12px;font-weight:800;letter-spacing:-.3px;}
h3{font-size:21px;line-height:1.45;margin:0 0 10px;font-weight:700;}
.sec-desc{color:var(--muted);font-size:16px;margin:0;}
p{margin:0 0 1em;}

/* ---------- focus ---------- */
.focus-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:28px;align-items:stretch;}
.focus-main{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;
}
.focus-main figure{margin:0;overflow:hidden;}
.focus-main img{width:100%;height:260px;object-fit:cover;transition:transform .45s ease;}
.focus-main:hover img{transform:scale(1.04);}
.focus-body{padding:26px 28px 28px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;}
.tag{
  display:inline-block;padding:5px 13px;border-radius:999px;
  font-size:12.5px;font-weight:600;background:rgba(31,107,79,.1);color:var(--brand);
}
.tag.accent{background:rgba(255,106,42,.12);color:#D24F14;}
.tag.glow{background:rgba(198,255,74,.3);color:#3F5A0A;}
.focus-body p{color:var(--muted);margin-bottom:18px;}
.meta-line{display:flex;flex-wrap:wrap;gap:16px;font-size:13px;color:var(--weak);}
.meta-line i{margin-right:6px;color:var(--brand-light);}

.focus-side{display:grid;gap:18px;}
.mini-card{
  display:flex;gap:16px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(31,107,79,.35);}
.mini-thumb{width:86px;height:70px;border-radius:12px;overflow:hidden;flex:0 0 auto;}
.mini-thumb img{width:100%;height:100%;object-fit:cover;}
.mini-card h3{font-size:16.5px;margin-bottom:6px;}
.mini-card p{font-size:13.5px;color:var(--weak);margin:0;}

/* ---------- filter + grid ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;
  padding:14px;border-radius:999px;background:#fff;
  border:1px solid var(--line);box-shadow:var(--shadow);margin-bottom:32px;
}
.chip{
  padding:9px 20px;border-radius:999px;font-size:14px;font-weight:600;
  color:var(--muted);background:var(--bg);border:1px solid transparent;
  transition:all .2s ease;
}
.chip:hover{background:rgba(31,107,79,.1);color:var(--brand-dark);}
.chip.on{background:var(--brand);color:#fff;border-color:var(--brand);}
.filter-note{margin-left:auto;font-size:13px;color:var(--weak);padding-right:12px;}

.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(31,107,79,.3);}
.news-thumb{margin:0;overflow:hidden;aspect-ratio:16/10;}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.news-card:hover .news-thumb img{transform:scale(1.05);}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.news-body h3{font-size:18px;margin-bottom:10px;}
.news-body p{font-size:14.5px;color:var(--muted);line-height:1.8;margin-bottom:18px;}
.news-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;border-top:1px solid var(--line-soft);font-size:13px;color:var(--weak);
}
.more-link{font-weight:600;color:var(--brand);font-size:14px;}
.more-link i{margin-left:6px;transition:transform .2s ease;}
.more-link:hover i{transform:translateX(4px);}

.pager{display:flex;justify-content:center;gap:10px;margin-top:42px;flex-wrap:wrap;}
.pager a,.pager span{
  min-width:44px;height:44px;padding:0 14px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:600;background:#fff;color:var(--muted);
  border:1px solid var(--line);transition:all .2s ease;
}
.pager a:hover{border-color:var(--brand-light);color:var(--brand);transform:translateY(-2px);}
.pager .current{background:var(--brand);color:#fff;border-color:var(--brand);}

/* ---------- timeline ---------- */
.timeline{
  position:relative;display:grid;gap:22px;
  padding-left:34px;
}
.timeline::before{
  content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--brand-light),rgba(31,107,79,.12));
}
.tl-item{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 26px;box-shadow:var(--shadow);}
.tl-item::before{
  content:"";position:absolute;left:-32px;top:28px;width:14px;height:14px;border-radius:50%;
  background:var(--glow);border:3px solid var(--brand);box-shadow:0 0 0 4px rgba(198,255,74,.22);
}
.tl-time{font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.6px;margin-bottom:6px;}
.tl-item h3{font-size:18px;margin-bottom:8px;}
.tl-item p{margin:0;color:var(--muted);font-size:14.5px;}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.split.rev .split-media{order:2;}
.split-media{margin:0;border-radius:22px;overflow:hidden;box-shadow:var(--shadow-lg);position:relative;}
.split-media img{width:100%;height:340px;object-fit:cover;}
.split-media .float-chip{
  position:absolute;right:16px;top:16px;
  background:rgba(255,255,255,.94);border-radius:999px;
  padding:8px 16px;font-size:13px;font-weight:700;color:var(--brand-dark);
}
.check-list{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:12px;}
.check-list li{display:flex;gap:12px;font-size:15.5px;color:var(--muted);line-height:1.75;}
.check-list i{color:var(--brand-light);margin-top:6px;}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:44px;align-items:start;}
.accordion{border:0;background:transparent;}
.accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow);
}
.accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:17px;font-weight:700;color:var(--text);
  background:#fff;border:0;border-left:4px solid transparent;
  transition:background .2s ease,border-color .2s ease;
}
.accordion-title:hover{background:#FAFCF8;color:var(--text);}
.accordion-title::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--brand-light);flex:0 0 auto;
}
.accordion-item.is-open-active .accordion-title{border-left-color:var(--brand);background:#F7FBF5;}
.accordion-content{padding:0 24px 22px 28px;color:var(--muted);line-height:1.85;font-size:15.5px;border-left:4px solid var(--brand);}
.accordion-content p:last-child{margin-bottom:0;}
.side-help{
  background:linear-gradient(160deg,var(--brand),var(--brand-dark));
  color:#fff;border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-lg);
}
.side-help h3{color:#fff;font-size:19px;}
.side-help p{color:rgba(255,255,255,.82);font-size:14.5px;}
.side-help ul{list-style:none;padding:0;margin:18px 0 22px;display:grid;gap:10px;font-size:14.5px;color:rgba(255,255,255,.9);}
.side-help ul i{color:var(--glow);margin-right:8px;}

/* ---------- cta ---------- */
.cta-banner{
  position:relative;overflow:hidden;border-radius:26px;
  background:linear-gradient(120deg,var(--brand) 0%,var(--brand-dark) 62%,#0A3226 100%);
  color:#fff;padding:58px 56px;box-shadow:var(--shadow-lg);
}
.cta-banner::after{
  content:"";position:absolute;right:-90px;top:-90px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,42,.42),transparent 66%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.35fr .65fr;gap:34px;align-items:center;}
.cta-banner h2{color:#fff;font-size:30px;margin-bottom:12px;}
.cta-banner p{color:rgba(255,255,255,.86);margin:0;}
.cta-actions{display:flex;flex-direction:column;gap:12px;}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-dark);color:rgba(255,255,255,.78);padding:64px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:12px;color:#fff;margin-bottom:16px;}
.footer-brand .brand-mark{width:40px;height:40px;font-size:18px;}
.footer-brand b{font-size:16.5px;}
.footer-col p{color:rgba(255,255,255,.66);font-size:14px;line-height:1.85;margin:0;}
.footer-col h4{color:#fff;font-size:15px;margin:0 0 16px;font-weight:700;}
.footer-col ul{list-style:none;padding:0;margin:0;display:grid;gap:11px;}
.footer-col ul a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-col ul a:hover{color:var(--glow);}
.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:13.5px;color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.8);}
.footer-bottom a:hover{color:var(--glow);}

/* ---------- responsive ---------- */
@media (max-width:1120px){
  h1{font-size:38px;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero-visual img{height:280px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:900px){
  .nav-search{order:3;flex:1 1 100%;min-height:48px;}
  .header-inner{flex-wrap:wrap;gap:14px;}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .header-actions .btn-ghost{display:none;}
  .cat-nav{display:none;}
  .cat-nav.open{display:block;}
  .cat-inner{flex-wrap:wrap;overflow:visible;padding:12px 20px;}
  .focus-grid{grid-template-columns:1fr;}
  .split{grid-template-columns:1fr;gap:26px;}
  .split.rev .split-media{order:0;}
  .split-media img{height:260px;}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .cta-inner{grid-template-columns:1fr;}
  .cta-banner{padding:40px 30px;}
  h1{font-size:32px;}
  h2{font-size:26px;}
  .section{padding:58px 0;}
}
@media (max-width:640px){
  body{font-size:15.5px;}
  .brand-text span{display:none;}
  .news-grid{grid-template-columns:1fr;}
  .hero-stats{grid-template-columns:1fr;gap:12px;}
  .filter-bar{border-radius:18px;}
  .filter-note{display:none;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-banner{border-radius:20px;padding:34px 24px;}
  h1{font-size:28px;line-height:1.32;}
  .page-hero{padding:56px 0 48px;}
  .section{padding:48px 0;}
  .brand-text b{font-size:15.5px;}
}
@media (max-width:520px){
  .hero-visual img{height:220px;}
  .focus-body{padding:20px;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category5 */
:root{
  --brand:#0B3D2E;
  --brand-dark:#072A20;
  --brand-light:#1F6B4F;
  --brand-soft:#E7F1EA;
  --accent:#FF6A2A;
  --accent-soft:#FFB86B;
  --lime:#C6FF4A;
  --bg:#F5F7F2;
  --panel:#FFFFFF;
  --line:#DCE5DD;
  --text:#14201B;
  --muted:#4B5B53;
  --weak:#7B8A82;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 10px 30px rgba(7,42,32,.08);
  --shadow-lg:0 18px 44px rgba(7,42,32,.14);
  --gap:26px;
  --section:84px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Inter,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.78;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand-light);text-decoration:none;transition:color .2s ease,background-color .2s ease;}
a:hover{color:var(--brand);}
h1,h2,h3,h4{margin:0;line-height:1.28;color:var(--text);font-weight:700;letter-spacing:.2px;}
h1{font-size:clamp(28px,4vw,48px);}
h2{font-size:clamp(24px,3vw,32px);}
h3{font-size:clamp(18px,2.2vw,22px);}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
::selection{background:rgba(198,255,74,.55);color:var(--brand-dark);}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
.grid-container{max-width:1240px;padding-left:24px;padding-right:24px;}
@media screen and (max-width:640px){.grid-container{padding-left:18px;padding-right:18px;}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn i{font-size:14px;}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(11,61,46,.22);}
.btn-primary:hover{background:var(--brand-light);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(11,61,46,.28);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(255,106,42,.26);}
.btn-accent:hover{background:#F2541A;color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,106,42,.32);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--text);}
.btn-ghost:hover{background:var(--brand-soft);border-color:#BFD6C6;color:var(--brand);transform:translateY(-2px);}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.5);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;transform:translateY(-2px);}
.btn:active{transform:translateY(0);}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 4px 18px rgba(7,42,32,.05);}
.header-top{background:#fff;}
.header-inner{display:flex;align-items:center;gap:22px;padding:14px 24px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:44px;height:44px;border-radius:14px;flex-shrink:0;
  background:linear-gradient(150deg,var(--brand-light),var(--brand-dark));
  color:#fff;font-weight:700;font-size:20px;display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(11,61,46,.24);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text b{font-size:17px;color:var(--brand-dark);letter-spacing:.3px;}
.brand-text span{font-size:12px;color:var(--weak);}
.nav-search{
  flex:1;max-width:560px;display:flex;align-items:center;gap:10px;
  background:#F1F5F0;border:1px solid var(--line);border-radius:999px;
  padding:5px 5px 5px 18px;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.nav-search:focus-within{border-color:var(--brand-light);background:#fff;box-shadow:0 0 0 4px rgba(31,107,79,.14);}
.nav-search i{color:var(--weak);font-size:15px;}
.nav-search input{flex:1;border:0;background:transparent;outline:none;height:42px;font-size:15px;color:var(--text);}
.nav-search input::placeholder{color:var(--weak);}
.nav-search button{
  border:0;background:var(--brand);color:#fff;border-radius:999px;
  padding:10px 20px;font-size:14px;font-weight:600;cursor:pointer;transition:background-color .2s ease,transform .2s ease;
}
.nav-search button:hover{background:var(--brand-light);transform:translateY(-1px);}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.menu-toggle{display:none;background:#F1F5F0;border:1px solid var(--line);border-radius:12px;width:42px;height:42px;color:var(--brand);cursor:pointer;}
.cat-nav{background:#fff;border-top:1px solid var(--line);}
.cat-inner{display:flex;align-items:center;gap:10px;padding:11px 24px;overflow-x:auto;scrollbar-width:none;}
.cat-inner::-webkit-scrollbar{display:none;}
.pill{
  flex-shrink:0;padding:9px 17px;border-radius:999px;font-size:14px;font-weight:500;
  color:var(--muted);background:#F4F7F3;border:1px solid transparent;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.pill:hover{background:var(--brand-soft);color:var(--brand);border-color:#CFE2D4;transform:translateY(-1px);}
.pill.active{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:0 6px 16px rgba(11,61,46,.2);}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(900px 420px at 82% 12%,rgba(198,255,74,.16),transparent 62%),
    linear-gradient(120deg,rgba(7,42,32,.94),rgba(11,61,46,.86) 52%,rgba(7,42,32,.9)),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  padding:78px 0 84px;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 78%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:7px 15px;border-radius:999px;
  background:rgba(198,255,74,.16);border:1px solid rgba(198,255,74,.4);
  color:var(--lime);font-size:13px;font-weight:600;letter-spacing:.4px;margin-bottom:22px;
}
.hero h1{color:#fff;margin-bottom:18px;}
.hero h1 em{font-style:normal;color:var(--lime);}
.hero-sub{font-size:17px;line-height:1.85;color:rgba(255,255,255,.86);max-width:560px;margin-bottom:26px;}
.hero-search{display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.96);border-radius:999px;padding:6px 6px 6px 20px;max-width:520px;margin-bottom:22px;}
.hero-search i{color:var(--weak);}
.hero-search input{flex:1;border:0;background:transparent;outline:none;height:44px;font-size:15px;color:var(--text);}
.hero-search button{border:0;background:var(--accent);color:#fff;border-radius:999px;padding:11px 22px;font-weight:600;cursor:pointer;transition:background-color .2s ease,transform .2s ease;}
.hero-search button:hover{background:#F2541A;transform:translateY(-1px);}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:34px;border-top:1px solid rgba(255,255,255,.18);padding-top:22px;}
.hero-stats div b{display:block;font-size:24px;color:var(--lime);font-weight:700;}
.hero-stats div span{font-size:13px;color:rgba(255,255,255,.72);}
.hero-media{position:relative;}
.hero-media img{border-radius:20px;box-shadow:var(--shadow-lg);}
.hero-media-card{
  position:absolute;left:-18px;bottom:-22px;background:#fff;border-radius:var(--radius);
  padding:16px 18px;box-shadow:var(--shadow-lg);max-width:230px;
}
.hero-media-card b{display:block;font-size:14px;color:var(--brand-dark);margin-bottom:4px;}
.hero-media-card span{font-size:12.5px;color:var(--weak);line-height:1.6;display:block;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section) 0;}
.section-tight{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:38px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:1px;
  color:var(--brand-light);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--accent);}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;line-height:1.85;}

/* ---------- 编号场景卡 ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;}
.scene-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.scene-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:#C7DCCE;}
.scene-num{
  display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;
  background:var(--brand-soft);color:var(--brand);font-weight:700;font-size:15px;margin-bottom:16px;
}
.scene-card h3{font-size:18px;margin-bottom:10px;}
.scene-card p{font-size:14.5px;color:var(--muted);line-height:1.8;margin:0;}
.scene-card .scene-link{display:inline-block;margin-top:14px;font-size:13.5px;font-weight:600;color:var(--brand);}
.scene-card .scene-link:hover{color:var(--accent);}

/* ---------- 高频速查 ---------- */
.quick-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:34px;align-items:start;}
.quick-tabs{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);}
.quick-tabs a{
  display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:var(--radius-sm);
  color:var(--muted);font-size:15px;font-weight:500;transition:background-color .18s ease,color .18s ease;
}
.quick-tabs a i{width:20px;text-align:center;color:var(--brand-light);}
.quick-tabs a:hover{background:var(--brand-soft);color:var(--brand);}
.quick-tabs a.active{background:var(--brand);color:#fff;}
.quick-tabs a.active i{color:var(--lime);}
.quick-list{display:flex;flex-direction:column;gap:18px;}
.quick-item{
  background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--accent);
  border-radius:14px;padding:22px 24px;box-shadow:var(--shadow);
}
.quick-item h3{font-size:17px;margin-bottom:10px;}
.quick-item p{margin:0;font-size:14.5px;color:var(--muted);line-height:1.85;}
.quick-item .badge{display:inline-block;font-size:12px;font-weight:600;color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:3px 10px;margin-right:8px;}

/* ---------- FAQ ---------- */
.faq-panel{background:var(--panel);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);padding:30px;max-width:920px;margin:0 auto;}
.faq-search{display:flex;align-items:center;gap:10px;background:#F4F7F3;border:1px solid var(--line);border-radius:999px;padding:5px 5px 5px 18px;margin-bottom:24px;}
.faq-search i{color:var(--weak);}
.faq-search input{flex:1;border:0;background:transparent;outline:none;height:42px;font-size:15px;color:var(--text);}
.faq-search:focus-within{border-color:var(--brand-light);background:#fff;box-shadow:0 0 0 4px rgba(31,107,79,.13);}
.faq-search .clear-btn{border:0;background:transparent;color:var(--weak);font-size:13px;padding:8px 12px;cursor:pointer;}
.faq-item{position:relative;border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;border-radius:0 4px 4px 0;background:transparent;transition:background-color .2s ease;}
.faq-item.is-open::before{background:var(--brand);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:transparent;border:0;text-align:left;padding:20px 14px 20px 18px;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--text);line-height:1.6;transition:color .18s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-q i{color:var(--brand-light);font-size:14px;transition:transform .25s ease;flex-shrink:0;}
.faq-item.is-open .faq-q i{transform:rotate(180deg);}
.faq-body{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-item.is-open .faq-body{max-height:560px;}
.faq-body p{margin:0;padding:0 40px 22px 18px;color:var(--muted);font-size:15px;line-height:1.88;}
.faq-empty{display:none;text-align:center;padding:46px 20px;color:var(--weak);}
.faq-empty i{font-size:30px;color:#BFD6C6;margin-bottom:12px;display:block;}
.faq-panel.is-empty .faq-empty{display:block;}

/* ---------- 自助排查步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;}
.step{position:relative;padding:0 22px 0 0;}
.step::after{content:"";position:absolute;top:22px;left:46px;right:6px;height:2px;background:linear-gradient(90deg,#CFE2D4,transparent);}
.step:last-child::after{display:none;}
.step-dot{
  width:44px;height:44px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);color:var(--brand);font-weight:700;box-shadow:var(--shadow);margin-bottom:16px;
}
.step h3{font-size:16.5px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--muted);line-height:1.8;margin:0;}

/* ---------- 联系与表单 ---------- */
.contact-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:start;}
.form-card{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:var(--shadow);}
.form-card h2{font-size:24px;margin-bottom:8px;}
.form-card .form-note{font-size:14px;color:var(--weak);margin-bottom:22px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--muted);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;
  padding:12px 14px;font-size:15px;color:var(--text);font-family:inherit;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:124px;resize:vertical;line-height:1.75;}
.field select{appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='%237B8A82' d='M8 11.2 3.2 6.4l1.1-1.1L8 9l3.7-3.7 1.1 1.1z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;background-size:16px;padding-right:40px;}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand-light);box-shadow:0 0 0 4px rgba(31,107,79,.13);}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-hint{font-size:12.5px;color:var(--weak);margin-top:10px;}
.form-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:6px;}
.channel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;display:flex;gap:16px;box-shadow:var(--shadow);margin-bottom:16px;transition:transform .2s ease,border-color .2s ease;}
.channel:hover{transform:translateY(-3px);border-color:#C7DCCE;}
.channel i{width:42px;height:42px;border-radius:12px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:17px;flex-shrink:0;}
.channel b{display:block;font-size:15.5px;margin-bottom:4px;}
.channel span{font-size:13.5px;color:var(--muted);line-height:1.7;display:block;}
.contact-figure{margin-top:22px;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);}
.contact-figure img{width:100%;transition:transform .35s ease;}
.contact-figure:hover img{transform:scale(1.03);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;color:#fff;border-radius:24px;
  background:
    radial-gradient(600px 300px at 88% 10%,rgba(255,106,42,.32),transparent 60%),
    linear-gradient(120deg,var(--brand-dark),var(--brand) 60%,#0F4E39);
  padding:56px 48px;box-shadow:var(--shadow-lg);
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;position:relative;z-index:2;}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,32px);margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.82);max-width:620px;margin:0;font-size:15.5px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-dark);color:rgba(255,255,255,.74);padding:64px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-mark{width:40px;height:40px;font-size:18px;border-radius:12px;}
.footer-brand b{color:#fff;font-size:16.5px;}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);margin:0;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.4px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-col ul a:hover{color:var(--lime);}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;padding-top:22px;font-size:13px;color:rgba(255,255,255,.6);}
.footer-bottom a{color:var(--lime);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1100px){
  .hero-inner{grid-template-columns:1fr;gap:40px;}
  .hero-media{max-width:560px;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);gap:28px;}
  .step::after{display:none;}
  .quick-wrap,.contact-wrap{grid-template-columns:1fr;}
}
@media screen and (max-width:1023px){
  :root{--section:64px;}
  .header-inner{flex-wrap:wrap;gap:14px;padding:12px 24px;}
  .nav-search{order:3;flex:1 1 100%;max-width:none;}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .cat-nav{display:none;}
  body.nav-open .cat-nav{display:block;}
  .cat-inner{flex-wrap:wrap;overflow:visible;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
}
@media screen and (max-width:640px){
  :root{--section:52px;}
  body{font-size:16px;}
  .header-inner{padding:12px 18px;gap:12px;}
  .brand-text span{display:none;}
  .brand-text b{font-size:15px;}
  .brand-mark{width:38px;height:38px;font-size:18px;border-radius:12px;}
  .header-actions .btn-ghost{display:none;}
  .cat-inner{padding:10px 18px;}
  .hero{padding:56px 0 62px;}
  .hero-sub{font-size:15.5px;}
  .hero-stats{gap:22px;}
  .grid-4,.grid-3,.grid-2{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;gap:24px;}
  .faq-panel{padding:22px 16px;border-radius:16px;}
  .faq-q{font-size:16px;padding:18px 10px 18px 14px;}
  .faq-body p{padding:0 10px 20px 14px;}
  .form-card{padding:22px 18px;}
  .field-row{grid-template-columns:1fr;}
  .cta-band{padding:38px 24px;border-radius:20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:420px){
  .footer-grid{grid-template-columns:1fr;}
}