/* roulang page: index */
:root{
  --c-primary:#14665A;
  --c-primary-dark:#0F564C;
  --c-panel:#0B3B36;
  --c-mist:#7FB3A6;
  --c-mist-bg:#E4EFEA;
  --c-accent:#E0703A;
  --bg:#F7F8F5;
  --card:#FFFFFF;
  --soft:#EEF2EE;
  --ink:#16201D;
  --ink-2:#4A5A55;
  --ink-3:#7C8A85;
  --line:#DCE5E0;
  --r-card:16px;
  --r-sm:12px;
  --r-btn:10px;
  --shadow:0 1px 2px rgba(16,40,34,.06), 0 8px 24px -12px rgba(16,40,34,.18);
  --shadow-hover:0 16px 32px -14px rgba(16,40,34,.26);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Source Han Sans SC',system-ui,sans-serif;
  font-size:16px;
  line-height:1.88;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;cursor:pointer;border:none;background:none;}
input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-0.01em;}
p{margin:0 0 1.1em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(20,102,90,.35);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (max-width:768px){.container{padding:0 16px;}}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  padding:14px 0 8px;
  background:linear-gradient(180deg,rgba(247,248,245,.97) 40%,rgba(247,248,245,.6) 100%);
}
.nav-card{
  display:flex;align-items:center;gap:16px;
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--shadow);
  padding:10px 14px;
}
.nav-logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:40px;height:40px;border-radius:12px;
  background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:17px;
}
.logo-text{font-size:18px;font-weight:700;letter-spacing:-0.01em;color:var(--ink);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:6px;flex:1;justify-content:center;}
.nav-item{
  display:flex;align-items:center;gap:6px;
  padding:8px 12px;border-radius:12px;
  background:var(--c-mist-bg);color:var(--ink-2);
  font-size:14px;line-height:1.4;white-space:nowrap;
  transition:all .2s ease;
}
.nav-item i{font-size:13px;color:var(--c-primary);}
.nav-item:hover{background:#d7e7e0;color:var(--c-primary);}
.nav-item.active{background:var(--c-primary);color:#fff;}
.nav-item.active i{color:#fff;}
.nav-actions{display:flex;align-items:center;gap:8px;flex-shrink:0;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;
  background:var(--c-mist-bg);color:var(--c-primary);font-size:16px;
}
.nav-mobile{display:none;margin-top:10px;background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:12px;}
.nav-mobile a{display:block;padding:12px 14px;border-radius:12px;background:var(--c-mist-bg);color:var(--ink-2);font-size:15px;margin-bottom:8px;}
.nav-mobile a.active{background:var(--c-primary);color:#fff;}
.nav-mobile a.mobile-cta{background:var(--c-accent);color:#fff;text-align:center;font-weight:600;}
.nav-mobile.open{display:block;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:all .2s ease;white-space:nowrap;
}
.btn:active{transform:scale(.98);}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px -12px rgba(20,102,90,.75);}
.btn-primary:hover{background:var(--c-primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.btn-accent{background:var(--c-accent);color:#fff;}
.btn-accent:hover{background:#c85f2e;transform:translateY(-2px);}
.btn-outline{background:#fff;border:1.5px solid var(--c-primary);color:var(--c-primary);}
.btn-outline:hover{background:var(--c-mist-bg);transform:translateY(-2px);}
.btn-ghost{background:var(--c-mist-bg);color:var(--c-primary);}
.btn-ghost:hover{background:#d7e7e0;}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-size:15px;font-weight:600;
  border-bottom:2px solid rgba(20,102,90,.25);padding-bottom:2px;
  transition:all .2s ease;
}
.text-link:hover{border-bottom-color:var(--c-accent);color:var(--c-accent);}

/* ============ 板块 ============ */
.section{padding:104px 0;}
.section-sm{padding:64px 0;}
.bg-soft{background:var(--soft);}
.bg-mist{background:var(--c-mist-bg);}
.bg-panel{background:var(--c-panel);color:#F2F7F4;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;}
.sec-num{
  display:inline-block;font-size:13px;letter-spacing:.2em;
  color:var(--c-mist);font-weight:600;margin-bottom:8px;
}
.h2{font-size:clamp(22px,2.8vw,32px);font-weight:700;position:relative;padding-left:16px;}
.h2::before{
  content:'';position:absolute;left:0;top:8px;bottom:8px;width:4px;
  border-radius:2px;background:var(--c-primary);
}
.bg-panel .h2{color:#F2F7F4;}
.bg-panel .h2::before{background:var(--c-accent);}
.sec-sub{color:var(--ink-2);font-size:15px;margin:10px 0 0;max-width:560px;}
.bg-panel .sec-sub{color:rgba(242,247,244,.72);}

.tag{
  display:inline-block;padding:3px 10px;border-radius:6px;
  background:var(--c-mist-bg);color:var(--c-primary);
  font-size:12px;font-weight:600;line-height:1.6;
}
.tag-accent{background:rgba(224,112,58,.12);color:#c85f2e;}

/* ============ Hero ============ */
.hero{padding:56px 0 88px;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.hero-title{font-size:clamp(28px,4.2vw,44px);font-weight:700;color:var(--ink);}
.hero-title em{font-style:normal;color:var(--c-primary);}
.hero-sub{
  margin:20px 0 28px;font-size:17px;line-height:1.85;color:var(--ink-2);max-width:560px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px;}
.hero-badges{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;max-width:560px;}
.badge{
  display:flex;align-items:center;gap:10px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:12px 14px;font-size:14px;color:var(--ink-2);box-shadow:var(--shadow);
}
.badge i{color:var(--c-primary);font-size:15px;}
.hero-media{position:relative;}
.hero-img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-card);border:1px solid var(--line);
  box-shadow:var(--shadow);background:var(--c-mist-bg);
}
.float-card{
  position:absolute;left:-18px;bottom:22px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  box-shadow:var(--shadow-hover);padding:14px 18px;min-width:196px;
}
.float-card strong{display:block;font-size:22px;color:var(--c-primary);line-height:1.2;font-variant-numeric:tabular-nums;}
.float-card span{font-size:13px;color:var(--ink-3);}
.float-card-top{
  position:absolute;right:-14px;top:20px;
  background:var(--c-panel);color:#F2F7F4;border-radius:var(--r-sm);
  padding:10px 16px;font-size:13px;box-shadow:var(--shadow-hover);
}

/* ============ 痛点 ============ */
.pain-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.pain-card{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px 24px 24px 28px;
  box-shadow:var(--shadow);transition:all .2s ease;
}
.pain-card::before{
  content:'';position:absolute;left:0;top:26px;bottom:26px;width:3px;
  border-radius:0 3px 3px 0;background:var(--c-primary);
}
.pain-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.pain-card h3{font-size:18px;font-weight:600;margin-bottom:10px;display:flex;gap:10px;align-items:flex-start;}
.pain-card h3 i{color:var(--c-accent);font-size:16px;margin-top:5px;}
.pain-card p{color:var(--ink-2);font-size:15px;margin:0;line-height:1.85;}

/* ============ 方案 ============ */
.plan-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start;}
.plan-main{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow);overflow:hidden;
  transition:all .2s ease;
}
.plan-main:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.plan-main img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--c-mist-bg);}
.plan-main .plan-body{padding:26px 26px 28px;}
.plan-main h3{font-size:21px;font-weight:700;margin:12px 0 10px;}
.plan-main p{color:var(--ink-2);font-size:15px;margin:0 0 18px;}
.plan-side{display:flex;flex-direction:column;gap:16px;}
.plan-row{
  display:flex;gap:16px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px;box-shadow:var(--shadow);transition:all .2s ease;
}
.plan-row:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#c9dbd4;}
.plan-row img{
  width:84px;height:84px;flex-shrink:0;object-fit:cover;
  border-radius:var(--r-sm);background:var(--c-mist-bg);
}
.plan-row h3{font-size:17px;font-weight:600;margin-bottom:6px;}
.plan-row p{font-size:14px;color:var(--ink-2);margin:0 0 8px;line-height:1.75;}
.plan-row .row-idx{font-size:12px;color:var(--c-mist);font-weight:700;letter-spacing:.12em;}

/* ============ 数据面板 ============ */
.stats-panel{
  background:var(--c-panel);border-radius:24px;padding:52px 44px;
  position:relative;overflow:hidden;
}
.stats-panel::after{
  content:'';position:absolute;right:-80px;top:-60px;width:320px;height:320px;
  border-radius:50%;background:radial-gradient(circle,rgba(127,179,166,.22),transparent 68%);
}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px;position:relative;z-index:1;}
.stat strong{
  display:block;font-size:clamp(28px,3.4vw,40px);font-weight:700;line-height:1.1;
  color:var(--c-accent);font-variant-numeric:tabular-nums;
}
.stat span{display:block;margin-top:10px;font-size:14px;color:rgba(242,247,244,.78);line-height:1.7;}
.stat{border-left:1px solid rgba(242,247,244,.16);padding-left:20px;}
.stat:first-child{border-left:none;padding-left:0;}
.stats-actions{margin-top:36px;display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1;}

/* ============ 保障 ============ */
.guard-grid{display:grid;grid-template-columns:4fr 8fr;gap:40px;align-items:start;}
.guard-aside{position:sticky;top:120px;}
.guard-aside p{color:var(--ink-2);font-size:15px;margin-top:14px;}
.guard-list{display:flex;flex-direction:column;gap:16px;}
.guard-item{
  display:flex;gap:16px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px;box-shadow:var(--shadow);
  transition:all .2s ease;
}
.guard-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.guard-icon{
  width:44px;height:44px;flex-shrink:0;border-radius:12px;
  background:var(--c-mist-bg);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:17px;
}
.guard-item h3{font-size:17px;font-weight:600;margin-bottom:6px;}
.guard-item p{font-size:15px;color:var(--ink-2);margin:0;line-height:1.8;}

/* ============ 最新信息 ============ */
.latest-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start;}
.latest-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.latest-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow);transition:all .2s ease;
}
.latest-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.latest-card img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--c-mist-bg);}
.latest-card .latest-card-body{padding:18px 18px 20px;}
.latest-card h3{
  font-size:17px;font-weight:600;margin:10px 0 8px;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.latest-card p{
  font-size:14px;color:var(--ink-2);margin:0 0 12px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.meta{font-size:13px;color:var(--ink-3);}
.latest-list{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);padding:8px 20px;
}
.latest-row{
  display:flex;align-items:center;gap:12px;padding:16px 0;
  border-bottom:1px solid var(--line);transition:all .2s ease;
}
.latest-row:last-child{border-bottom:none;}
.latest-row:hover .row-title{color:var(--c-primary);}
.latest-row .dot{width:6px;height:6px;border-radius:2px;background:var(--c-mist);flex-shrink:0;}
.row-title{
  flex:1;font-size:15px;font-weight:500;line-height:1.65;transition:color .2s ease;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.row-meta{font-size:13px;color:var(--ink-3);flex-shrink:0;}
.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);
  padding:56px 24px;text-align:center;box-shadow:var(--shadow);
}
.empty-state i{font-size:32px;color:var(--c-mist);}
.empty-state p{color:var(--ink-2);margin:16px 0 20px;font-size:15px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  overflow:hidden;transition:all .2s ease;position:relative;
}
.faq-item::before{
  content:'';position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--c-primary);opacity:0;transition:opacity .2s ease;
}
.faq-item[open]::before{opacity:1;}
.faq-item[open]{box-shadow:var(--shadow);border-color:#c9dbd4;}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:'\f078';font-family:'Font Awesome 6 Free';font-weight:900;
  font-size:12px;color:var(--c-primary);transition:transform .2s ease;flex-shrink:0;
}
.faq-item[open] summary::after{transform:rotate(180deg);}
.faq-body{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--ink-2);}

/* ============ CTA / 表单 ============ */
.cta-panel{
  background:var(--c-mist-bg);border-radius:24px;padding:52px 44px;
  display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:start;
}
.cta-copy h2{font-size:clamp(22px,2.8vw,30px);font-weight:700;margin-bottom:16px;}
.cta-copy p{color:var(--ink-2);font-size:15px;}
.cta-points{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.cta-points li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);}
.cta-points i{color:var(--c-primary);margin-top:6px;font-size:12px;}
.lead-form{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--shadow);
}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:14px;font-weight:600;color:var(--ink-2);}
.field label .req{color:var(--c-accent);}
.field input,.field select,.field textarea{
  height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:0 14px;background:#fff;font-size:15px;transition:all .2s ease;
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;line-height:1.75;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);background:var(--c-mist-bg);
  box-shadow:0 0 0 3px rgba(20,102,90,.12);
}
.form-check{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--ink-2);margin-top:6px;}
.form-check input{width:16px;height:16px;height:16px;margin-top:4px;flex-shrink:0;accent-color:var(--c-primary);}
.form-tip{
  display:none;margin-top:14px;padding:12px 16px;border-radius:var(--r-sm);
  background:var(--c-mist-bg);color:var(--c-primary);font-size:14px;
}
.form-tip.show{display:block;}
.privacy-note{
  margin-top:18px;padding:14px 16px;border-radius:var(--r-sm);
  background:var(--soft);color:var(--ink-3);font-size:13px;line-height:1.75;
}
.privacy-note a{color:var(--c-primary);border-bottom:1px solid rgba(20,102,90,.3);}

/* ============ 弹层 ============ */
.modal-mask{
  position:fixed;inset:0;z-index:120;background:rgba(11,59,54,.55);
  display:flex;align-items:center;justify-content:center;padding:24px;
}
.modal-mask[hidden]{display:none;}
.modal-card{
  position:relative;width:100%;max-width:560px;background:#fff;
  border-radius:var(--r-card);padding:32px;box-shadow:0 30px 60px -20px rgba(11,59,54,.5);
  max-height:88vh;overflow-y:auto;
}
.modal-card h3{font-size:21px;font-weight:700;margin-bottom:10px;}
.modal-card > p{color:var(--ink-2);font-size:15px;margin-bottom:20px;}
.modal-close{
  position:absolute;right:16px;top:16px;width:36px;height:36px;border-radius:10px;
  background:var(--soft);color:var(--ink-2);font-size:16px;
  display:flex;align-items:center;justify-content:center;transition:all .2s ease;
}
.modal-close:hover{background:var(--c-mist-bg);color:var(--c-primary);}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-panel);color:#F2F7F4;padding:72px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:4fr 3fr 3fr 2fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .logo-mark{background:rgba(242,247,244,.12);color:#F2F7F4;}
.footer-brand .logo-text{color:#F2F7F4;font-size:18px;font-weight:700;}
.footer-col p{font-size:14px;color:rgba(242,247,244,.7);line-height:1.85;margin:0 0 10px;}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:#F2F7F4;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:rgba(242,247,244,.72);transition:color .2s ease;}
.footer-col ul a:hover{color:var(--c-accent);}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(242,247,244,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(242,247,244,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .section{padding:72px 0;}
  .section-sm{padding:50px 0;}
  .hero{padding:40px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-media{order:-1;}
  .plan-grid{grid-template-columns:1fr;}
  .latest-grid{grid-template-columns:1fr;}
  .guard-grid{grid-template-columns:1fr;gap:28px;}
  .guard-aside{position:static;}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:40px 28px;}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
  .stat:nth-child(3){border-left:none;padding-left:0;}
  .nav-links{display:none;}
  .nav-toggle{display:flex;align-items:center;justify-content:center;}
  .nav-actions .btn-ghost{display:none;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .section-sm{padding:40px 0;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px;}
  .pain-grid{grid-template-columns:1fr;}
  .latest-cards{grid-template-columns:1fr;}
  .hero-badges{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .stats-panel{padding:36px 22px;border-radius:18px;}
  .cta-panel{border-radius:18px;padding:32px 20px;}
  .lead-form{padding:20px;}
  .modal-mask{padding:0 16px;}
  .modal-card{padding:24px 20px;}
  .float-card{left:0;bottom:12px;padding:12px 14px;min-width:164px;}
  .float-card-top{right:0;top:12px;}
  .faq-item summary{padding:16px 18px;font-size:15px;}
  .faq-body{padding:0 18px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{padding:52px 0 24px;}
  .latest-list{padding:6px 16px;}
  .logo-text{font-size:16px;}
}
@media (max-width:520px){
  .nav-actions .btn-primary{padding:0 14px;font-size:14px;}
  .hero-actions .btn{width:100%;}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat strong{font-size:26px;}
  .row-title{font-size:14px;}
  .row-meta{display:none;}
}

/* roulang page: category1 */
:root{
  --c-primary:#14665A;
  --c-primary-deep:#0F564C;
  --c-panel:#0B3B36;
  --c-mist:#7FB3A6;
  --c-mist-bg:#E4EFEA;
  --c-accent:#E0703A;
  --bg:#F7F8F5;
  --bg-sub:#EEF2EE;
  --card:#FFFFFF;
  --ink:#16201D;
  --ink-2:#4A5A55;
  --ink-3:#7C8A85;
  --line:#DCE5E0;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:6px;
  --shadow-1:0 1px 2px rgba(16,40,34,.06), 0 8px 24px -12px rgba(16,40,34,.18);
  --shadow-2:0 16px 32px -14px rgba(16,40,34,.26);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.88;
  color:var(--ink);
  background:var(--bg);
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.3;letter-spacing:-0.01em;}
h1{font-weight:700;font-size:clamp(28px,4.2vw,44px);}
h2{font-weight:700;font-size:clamp(22px,2.8vw,32px);}
h3{font-weight:600;font-size:19px;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:var(--c-primary-deep);}
img{max-width:100%;display:block;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:3px solid rgba(20,102,90,.35);outline-offset:2px;border-radius:6px;}
.container-x{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.section{padding:88px 0;}
.section-lg{padding:104px 0;}
.section-sm{padding:64px 0;}
.bg-sub{background:var(--bg-sub);}
.bg-mist{background:var(--c-mist-bg);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.14em;
  color:var(--c-primary);text-transform:none;
}
.eyebrow .num{
  display:inline-flex;align-items:center;justify-content:center;
  width:26px;height:26px;border-radius:var(--r-sm);
  background:var(--c-mist-bg);color:var(--c-primary);font-size:12px;letter-spacing:0;
}
.sec-head{max-width:760px;margin-bottom:40px;}
.sec-head p{color:var(--ink-2);font-size:16px;margin-top:14px;}
.lead{font-size:17px;line-height:1.9;color:var(--ink-2);}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;padding:12px 0;background:linear-gradient(180deg,rgba(247,248,245,.92),rgba(247,248,245,.55));backdrop-filter:blur(6px);}
.nav-card{
  display:flex;align-items:center;gap:18px;
  background:rgba(255,255,255,.9);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);
  padding:10px 14px;
  backdrop-filter:blur(8px);
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:40px;height:40px;border-radius:var(--r-md);
  background:var(--c-primary);color:#F2F7F4;
  display:inline-flex;align-items:center;justify-content:center;font-size:17px;
  box-shadow:0 6px 16px -8px rgba(20,102,90,.8);
}
.logo-text{font-weight:700;font-size:17px;color:var(--ink);letter-spacing:-.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:6px;flex:1;min-width:0;}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 12px;border-radius:var(--r-md);
  font-size:14px;color:var(--ink-2);white-space:nowrap;
  border:1px solid transparent;
}
.nav-item i{font-size:13px;color:var(--c-mist);}
.nav-item:hover{background:var(--c-mist-bg);color:var(--c-primary);}
.nav-item.active{background:var(--c-primary);color:#F2F7F4;border-color:var(--c-primary);}
.nav-item.active i{color:#CDE6DE;}
.nav-actions{display:flex;align-items:center;gap:8px;flex-shrink:0;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:10px;
  font-size:15px;font-weight:600;cursor:pointer;border:1.5px solid transparent;
  transition:all .2s ease;text-align:center;
}
.btn:active{transform:scale(.98);}
.btn-primary{background:var(--c-primary);color:#F2F7F4;border-color:var(--c-primary);}
.btn-primary:hover{background:var(--c-primary-deep);border-color:var(--c-primary-deep);color:#fff;box-shadow:var(--shadow-1);}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-mist-bg);color:var(--c-primary-deep);}
.btn-accent{background:var(--c-accent);color:#fff;border-color:var(--c-accent);}
.btn-accent:hover{background:#C85F2E;border-color:#C85F2E;color:#fff;}
.btn-sm{min-height:38px;padding:0 14px;font-size:14px;}
.btn-block{width:100%;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14px;border-bottom:2px solid rgba(20,102,90,.32);padding-bottom:2px;}
.text-link:hover{border-bottom-color:var(--c-accent);color:var(--c-primary-deep);}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--r-md);border:1px solid var(--line);background:#fff;color:var(--c-primary);font-size:17px;cursor:pointer;}
.mobile-panel{display:none;margin-top:10px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-1);padding:12px;}
.mobile-panel a{display:flex;align-items:center;gap:10px;padding:12px;border-radius:var(--r-md);color:var(--ink-2);font-size:15px;border:1px solid transparent;}
.mobile-panel a:hover,.mobile-panel a.active{background:var(--c-mist-bg);color:var(--c-primary);}
.mobile-panel .btn{margin-top:10px;}

/* 面包屑 */
.crumb{padding:22px 0 0;}
.crumb-inner{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);}
.crumb-inner span.sep{color:var(--ink-3);}
.crumb-inner .current{color:var(--ink-3);}

/* 页头卡 */
.page-head{
  margin-top:22px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);overflow:hidden;
  display:grid;grid-template-columns:7fr 5fr;
}
.page-head-body{padding:44px 40px;}
.page-head-body h1{font-size:clamp(26px,3.4vw,38px);}
.page-head-body h1 .kw{color:var(--c-primary);}
.page-head-body p{margin-top:16px;color:var(--ink-2);font-size:16.5px;}
.page-head-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:var(--r-sm);
  background:var(--c-mist-bg);color:var(--c-primary);
  font-size:13px;font-weight:600;
}
.tag-accent{background:rgba(224,112,58,.12);color:#B8541F;}
.page-head-media{position:relative;min-height:320px;background:var(--c-mist-bg);}
.page-head-media img{width:100%;height:100%;object-fit:cover;}
.media-note{
  position:absolute;left:20px;bottom:20px;right:20px;
  background:rgba(11,59,54,.82);color:#F2F7F4;
  border-radius:var(--r-md);padding:14px 16px;font-size:13.5px;line-height:1.7;
  backdrop-filter:blur(4px);
}
.media-note strong{color:#fff;}
.img-frame{position:relative;background:var(--c-mist-bg);border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);}
.img-frame img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;}

/* 图文段落 */
.article-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:44px 0;border-bottom:1px solid var(--line);}
.article-row:last-child{border-bottom:none;}
.article-row.reverse .row-text{order:2;}
.article-row.reverse .row-media{order:1;}
.row-text h3{font-size:clamp(20px,2.2vw,25px);}
.row-text h3 .bar{display:inline-block;width:4px;height:20px;background:var(--c-primary);border-radius:2px;margin-right:10px;vertical-align:-3px;}
.row-text p{margin-top:16px;color:var(--ink-2);}
.point-list{list-style:none;padding:0;margin:20px 0 0;}
.point-list li{position:relative;padding-left:20px;margin-bottom:10px;color:var(--ink-2);font-size:15.5px;}
.point-list li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;background:var(--c-primary);}
.row-media .img-frame{box-shadow:var(--shadow-1);}

/* 参数卡组（非等宽） */
.spec-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start;}
.spec-main{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-1);padding:32px;}
.spec-list{display:grid;grid-template-columns:1fr 1fr;gap:18px 24px;margin-top:24px;}
.spec-item{border-left:3px solid var(--c-primary);padding-left:14px;}
.spec-item h4{font-size:15.5px;font-weight:600;}
.spec-item p{font-size:14.5px;color:var(--ink-2);margin-top:6px;line-height:1.75;}
.spec-side{background:var(--c-mist-bg);border:1px solid #D3E3DC;border-radius:var(--r-lg);padding:28px;}
.spec-side h3{font-size:18px;}
.spec-side ul{list-style:none;padding:0;margin:18px 0 0;}
.spec-side li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);padding:11px 0;border-bottom:1px dashed #CFE0D9;}
.spec-side li:last-child{border-bottom:none;}
.spec-side li i{color:var(--c-accent);margin-top:6px;font-size:13px;}

/* 场景小卡 */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.scene-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px;box-shadow:var(--shadow-1);transition:all .2s ease;}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.scene-card .ico{
  width:44px;height:44px;border-radius:var(--r-md);background:var(--c-mist-bg);
  display:flex;align-items:center;justify-content:center;color:var(--c-primary);font-size:17px;margin-bottom:14px;
}
.scene-card h3{font-size:17px;}
.scene-card p{font-size:14.5px;color:var(--ink-2);margin-top:8px;line-height:1.78;}

/* CTA 条 */
.cta-band{
  background:var(--c-panel);border-radius:var(--r-lg);padding:44px 40px;
  display:grid;grid-template-columns:8fr 4fr;gap:32px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;inset:auto -60px -80px auto;width:320px;height:320px;border-radius:50%;
  border:1.5px solid rgba(127,179,166,.22);
}
.cta-band h2{color:#F2F7F4;font-size:clamp(21px,2.4vw,28px);}
.cta-band p{color:#B9CFC8;margin-top:14px;font-size:15.5px;max-width:620px;}
.cta-actions{display:flex;flex-direction:column;gap:12px;position:relative;z-index:1;}

/* 相关阅读 */
.read-grid{display:grid;grid-template-columns:6fr 6fr;gap:24px;}
.read-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-1);transition:all .2s ease;display:flex;flex-direction:column;}
.read-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.read-card .img-frame{border:none;border-radius:0;}
.read-body{padding:24px;}
.read-body h3{font-size:17.5px;line-height:1.5;}
.read-meta{display:flex;flex-wrap:wrap;gap:10px;margin:12px 0 10px;font-size:13px;color:var(--ink-3);}
.read-body p{font-size:14.5px;color:var(--ink-2);}
.read-side{display:flex;flex-direction:column;gap:16px;}
.read-strip{
  display:flex;gap:18px;align-items:center;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:16px;box-shadow:var(--shadow-1);transition:all .2s ease;
}
.read-strip:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.read-strip .thumb{width:120px;height:80px;flex-shrink:0;border-radius:var(--r-md);overflow:hidden;background:var(--c-mist-bg);}
.read-strip .thumb img{width:100%;height:100%;object-fit:cover;}
.read-strip h3{font-size:16px;}
.read-strip p{font-size:13.5px;color:var(--ink-3);margin-top:6px;}

/* 页脚 */
.site-footer{background:var(--c-panel);color:#C7D9D3;padding:64px 0 24px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.site-footer .logo-mark{background:#F2F7F4;color:var(--c-panel);}
.site-footer .logo-text{color:#F2F7F4;font-weight:700;font-size:17px;}
.footer-col p{font-size:14px;line-height:1.85;color:#A9C1BB;margin-bottom:10px;}
.footer-col h4{color:#F2F7F4;font-size:15.5px;margin-bottom:16px;font-weight:600;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;font-size:14px;}
.footer-col a{color:#A9C1BB;border-bottom:1px solid transparent;padding-bottom:1px;}
.footer-col a:hover{color:#fff;border-bottom-color:var(--c-accent);}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13px;color:#8FA8A2;
}

@media (max-width:1024px){
  .section{padding:64px 0;}
  .section-lg{padding:72px 0;}
  .section-sm{padding:52px 0;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-card{justify-content:space-between;}
  .nav-actions .btn-ghost{display:none;}
  .page-head{grid-template-columns:1fr;}
  .page-head-media{min-height:240px;}
  .article-row{gap:32px;padding:36px 0;}
  .spec-grid{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band{grid-template-columns:1fr;padding:36px 28px;}
  .read-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  .container-x{padding:0 16px;}
  .page-head-body{padding:30px 22px;}
  .article-row{grid-template-columns:1fr;}
  .article-row.reverse .row-text,.article-row.reverse .row-media{order:0;}
  .row-media .img-frame{order:2;}
  .spec-list{grid-template-columns:1fr;}
  .spec-main,.spec-side{padding:24px 20px;}
  .read-strip{flex-direction:column;align-items:flex-start;}
  .read-strip .thumb{width:100%;height:170px;}
}
@media (max-width:520px){
  body{font-size:15.5px;}
  .scene-grid{grid-template-columns:1fr;}
  .logo-text{font-size:15.5px;}
  .footer-grid{grid-template-columns:1fr;}
  .btn{padding:0 16px;}
}

/* roulang page: article */
:root{
  --c-primary:#14665A;
  --c-primary-dark:#0F564C;
  --c-deep:#0B3B36;
  --c-mist:#7FB3A6;
  --c-mist-bg:#E4EFEA;
  --c-accent:#E0703A;
  --c-bg:#F7F8F5;
  --c-card:#FFFFFF;
  --c-sub-bg:#EEF2EE;
  --c-text:#16201D;
  --c-text-2:#4A5A55;
  --c-text-3:#7C8A85;
  --c-invert:#F2F7F4;
  --c-border:#DCE5E0;
  --r-card:16px;
  --r-sm:12px;
  --r-btn:10px;
  --r-tag:6px;
  --sh-1:0 1px 2px rgba(16,40,34,.06),0 8px 24px -12px rgba(16,40,34,.18);
  --sh-2:0 16px 32px -14px rgba(16,40,34,.26);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:15px}
:focus-visible{outline:3px solid rgba(20,102,90,.35);outline-offset:2px;border-radius:6px}

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

/* ---------- Header / Nav ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:14px 0 6px}
.nav-panel{
  position:relative;
  display:flex;align-items:center;gap:16px;
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:10px 14px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--c-primary);color:#fff;
  display:grid;place-items:center;font-size:16px;
  box-shadow:0 6px 14px -8px rgba(20,102,90,.9);
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--c-text);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:nowrap}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 12px;border-radius:12px;
  background:var(--c-mist-bg);
  color:var(--c-text-2);
  font-size:13.5px;line-height:1;white-space:nowrap;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.nav-item i{font-size:13px;color:var(--c-primary);transition:color .2s ease}
.nav-item:hover{background:#D5E7E0;color:var(--c-primary);transform:translateY(-1px)}
.nav-item.active{background:var(--c-primary);color:#fff}
.nav-item.active i{color:#fff}
.nav-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--c-border);background:#fff;color:var(--c-primary);
  align-items:center;justify-content:center;font-size:16px;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-sm{min-height:38px;padding:0 15px;font-size:13.5px;border-radius:10px}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 22px -14px rgba(20,102,90,.9)}
.btn-primary:hover{background:var(--c-primary-dark);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:scale(.98)}
.btn-outline{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline:hover{background:var(--c-mist-bg);transform:translateY(-2px)}
.btn-outline:active{transform:scale(.98)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-weight:600;font-size:14px;
  border-bottom:2px solid rgba(20,102,90,.25);padding-bottom:2px;
  transition:border-color .2s ease,color .2s ease;
}
.btn-text:hover{border-color:var(--c-accent);color:var(--c-primary-dark)}

/* ---------- Breadcrumb ---------- */
.crumb-bar{background:var(--c-sub-bg);border-bottom:1px solid var(--c-border)}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  padding:14px 0;font-size:14px;color:var(--c-text-3);
}
.breadcrumb a{color:var(--c-text-2);transition:color .2s ease}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#B9C7C1}
.breadcrumb .current{color:var(--c-text);font-weight:600;max-width:70vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- Article head ---------- */
.article-head{padding:44px 0 0;max-width:900px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:var(--r-tag);
  background:var(--c-mist-bg);color:var(--c-primary);
  font-size:13px;font-weight:600;line-height:1.5;
}
.tag.accent{background:rgba(224,112,58,.12);color:#B4541F}
.article-head h1{
  font-size:clamp(28px,4.2vw,42px);
  font-weight:700;line-height:1.32;letter-spacing:-.01em;
  margin:18px 0 20px;color:var(--c-text);
}
.article-meta{
  display:flex;align-items:center;gap:10px 20px;flex-wrap:wrap;
  font-size:14px;color:var(--c-text-3);
  padding-bottom:26px;border-bottom:1px solid var(--c-border);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--c-mist)}

/* ---------- Layout ---------- */
.article-main{padding:48px 0 72px}
.layout-grid{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:44px;align-items:start}

.article-content{
  background:var(--c-card);
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:38px 40px;
}
.article-content h2{
  position:relative;padding-left:16px;
  font-size:clamp(21px,2.4vw,27px);font-weight:700;line-height:1.36;letter-spacing:-.01em;
  color:var(--c-text);margin:2.1em 0 .8em;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:2px;
  background:var(--c-primary);
}
.article-content h2:first-child{margin-top:0}
.article-content h3{font-size:19px;font-weight:600;line-height:1.5;color:var(--c-text);margin:1.7em 0 .6em}
.article-content p{font-size:16.5px;line-height:1.9;color:var(--c-text-2);margin:1.1em 0}
.article-content strong{color:var(--c-text)}
.article-content ul,.article-content ol{margin:1.1em 0;padding-left:1.5em}
.article-content ul li{list-style:none;position:relative;padding-left:16px;margin:.55em 0;font-size:16px;line-height:1.85;color:var(--c-text-2)}
.article-content ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:2px;background:var(--c-primary);
}
.article-content ol{counter-reset:item}
.article-content ol li{list-style:decimal;margin:.55em 0;font-size:16px;line-height:1.85;color:var(--c-text-2)}
.article-content ol li::marker{color:var(--c-primary);font-weight:700}
.article-content blockquote{
  margin:1.6em 0;padding:16px 22px;background:var(--c-mist-bg);
  border-left:3px solid var(--c-primary);border-radius:0 12px 12px 0;
  color:var(--c-text-2);font-size:16px;
}
.article-content blockquote p{margin:.4em 0;font-size:16px}
.article-content img{
  max-width:100%;height:auto;border-radius:12px;
  border:1px solid var(--c-border);margin:1.6em auto;
}
.article-content figure{margin:1.6em 0}
.article-content figcaption{
  text-align:center;font-size:13px;color:var(--c-text-3);margin-top:10px;
}
.article-content a{color:var(--c-primary);border-bottom:1px solid rgba(20,102,90,.35);transition:border-color .2s ease,color .2s ease}
.article-content a:hover{color:var(--c-accent);border-color:var(--c-accent)}
.article-content code{
  background:var(--c-sub-bg);border-radius:6px;padding:2px 6px;font-size:14px;color:var(--c-primary-dark);
}
.article-content hr{border:0;border-top:1px solid var(--c-border);margin:2.2em 0}
.table-scroll{overflow-x:auto;margin:1.6em 0;-webkit-overflow-scrolling:touch;border-radius:12px;border:1px solid var(--c-border)}
.table-scroll table{margin:0;border:0;min-width:520px;width:100%;border-collapse:collapse;font-size:15px}
.article-content th,.article-content td{border-bottom:1px solid var(--c-border);padding:11px 14px;text-align:left;vertical-align:top}
.article-content thead th{background:var(--c-sub-bg);color:var(--c-text);font-weight:600}
.article-content tbody tr:nth-child(even){background:#FAFBF8}
.article-content tbody tr:last-child td{border-bottom:0}

/* ---------- Sidebar ---------- */
.aside-stack{display:flex;flex-direction:column;gap:18px;position:sticky;top:96px}
.side-card{
  background:var(--c-card);border:1px solid var(--c-border);
  border-radius:var(--r-card);box-shadow:var(--sh-1);padding:22px;
}
.side-card h3{
  font-size:16px;font-weight:700;color:var(--c-text);margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.side-card h3 i{color:var(--c-primary);font-size:14px}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:360px;overflow:auto}
.toc-list a{
  display:block;font-size:14px;line-height:1.7;color:var(--c-text-2);
  padding:7px 10px;border-radius:10px;border-left:2px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.toc-list a:hover{background:var(--c-mist-bg);color:var(--c-primary);border-left-color:var(--c-primary)}
.side-consult{background:var(--c-deep);color:var(--c-invert);border-color:var(--c-deep)}
.side-consult h3{color:#fff}
.side-consult h3 i{color:var(--c-mist)}
.side-consult p{font-size:14.5px;line-height:1.85;color:rgba(242,247,244,.78);margin-bottom:16px}
.side-consult .btn{width:100%}
.side-consult .btn-outline{background:transparent;color:#fff;border-color:rgba(242,247,244,.5)}
.side-consult .btn-outline:hover{background:rgba(242,247,244,.12);color:#fff}
.side-contact-line{
  display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(242,247,244,.72);
  margin-top:14px;padding-top:14px;border-top:1px solid rgba(242,247,244,.16);
}
.side-contact-line i{color:var(--c-accent)}

/* ---------- Empty state ---------- */
.empty-state{
  text-align:center;padding:56px 20px;border:1px dashed var(--c-border);
  border-radius:var(--r-card);background:var(--c-sub-bg);
}
.empty-state .empty-icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:18px;
  background:var(--c-mist-bg);color:var(--c-primary);
  display:grid;place-items:center;font-size:24px;
}
.empty-state h3{font-size:20px;font-weight:700;margin-bottom:10px}
.empty-state p{font-size:15px;color:var(--c-text-2);margin-bottom:20px}

/* ---------- Tags & related ---------- */
.section{padding:64px 0}
.section.alt{background:var(--c-sub-bg)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px;flex-wrap:wrap}
.section-head h2{
  position:relative;padding-left:16px;
  font-size:clamp(22px,2.8vw,32px);font-weight:700;letter-spacing:-.01em;line-height:1.3;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:var(--c-primary);
}
.section-head p{font-size:15px;color:var(--c-text-2);margin-top:8px;max-width:640px}
.section-num{
  display:inline-block;font-size:13px;font-weight:700;color:var(--c-primary);
  letter-spacing:.2em;margin-bottom:10px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag-row .tag{transition:transform .2s ease,background .2s ease}
.tag-row .tag:hover{transform:translateY(-2px);background:#D5E7E0}

.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--c-card);
  border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#C9DAD3}
.post-cover{
  aspect-ratio:16/10;background:var(--c-mist-bg);
  display:grid;place-items:center;color:var(--c-mist);font-size:22px;overflow:hidden;
}
.post-cover img{width:100%;height:100%;object-fit:cover}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{font-size:17.5px;font-weight:700;line-height:1.5;color:var(--c-text)}
.post-body p{font-size:14.5px;line-height:1.8;color:var(--c-text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:12px;border-top:1px solid var(--c-border);
  font-size:13px;color:var(--c-text-3);
}

/* ---------- CTA / booking ---------- */
.cta-panel{
  background:var(--c-deep);color:var(--c-invert);
  border-radius:var(--r-card);padding:44px 44px 40px;
  display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:40px;
  box-shadow:var(--sh-2);
}
.cta-panel h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35;color:#fff;margin-bottom:14px}
.cta-panel .lead{font-size:15px;line-height:1.9;color:rgba(242,247,244,.78)}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:rgba(242,247,244,.86)}
.cta-points i{color:var(--c-accent);margin-top:4px;font-size:13px}
.form-card{background:rgba(255,255,255,.06);border:1px solid rgba(242,247,244,.18);border-radius:var(--r-card);padding:24px}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1 / -1}
.field label{font-size:13.5px;color:rgba(242,247,244,.82)}
.field label .req{color:var(--c-accent)}
.field input,.field select,.field textarea{
  height:44px;border-radius:var(--r-btn);border:1px solid rgba(242,247,244,.22);
  background:rgba(255,255,255,.94);color:var(--c-text);padding:0 12px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{height:auto;padding:11px 12px;resize:vertical;min-height:96px;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#9AA8A2}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(20,102,90,.22);
}
.form-privacy{
  margin-top:16px;padding:13px 15px;border-radius:var(--r-sm);
  background:rgba(242,247,244,.08);font-size:13px;line-height:1.75;color:rgba(242,247,244,.72);
}
.form-privacy label{display:flex;align-items:flex-start;gap:8px;cursor:pointer}
.form-privacy input[type="checkbox"]{margin-top:3px;accent-color:var(--c-accent);width:15px;height:15px}
.form-privacy a{color:#fff;border-bottom:1px solid rgba(255,255,255,.45)}
.form-submit{margin-top:16px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.form-submit .btn{background:var(--c-accent);border-color:var(--c-accent);color:#fff}
.form-submit .btn:hover{background:#C85F2C;border-color:#C85F2C;transform:translateY(-2px)}
.form-submit small{font-size:12.5px;color:rgba(242,247,244,.6)}
.form-tip{display:none;margin-top:14px;font-size:14px;color:#FFD9C2}
.form-tip.show{display:block}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-deep);color:rgba(242,247,244,.76);margin-top:0;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .logo-mark{background:var(--c-primary);color:#fff}
.footer-brand .logo-text{color:#fff;font-size:17px;font-weight:700;letter-spacing:-.01em}
.footer-col p{font-size:14px;line-height:1.9;margin-bottom:10px;color:rgba(242,247,244,.7)}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col ul li{margin-bottom:11px}
.footer-col ul li a{font-size:14px;color:rgba(242,247,244,.72);transition:color .2s ease,padding-left .2s ease}
.footer-col ul li a:hover{color:#fff;padding-left:4px}
.footer-bottom{
  margin-top:48px;padding:20px 0 26px;border-top:1px solid rgba(242,247,244,.14);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(242,247,244,.55);
}

/* ---------- Responsive ---------- */
@media (max-width:1200px){
  .nav-item{padding:9px 10px;font-size:13px}
}
@media (max-width:1024px){
  .nav-links{
    display:none;
    position:absolute;left:12px;right:12px;top:calc(100% + 10px);
    flex-direction:column;align-items:stretch;gap:8px;
    background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
    box-shadow:var(--sh-2);padding:12px;margin-left:0;z-index:70;
  }
  .nav-links.open{display:flex}
  .nav-item{justify-content:flex-start;padding:12px 14px;font-size:14px;background:var(--c-sub-bg)}
  .nav-toggle{display:flex}
  .nav-actions .nav-contact{display:none}
  .layout-grid{grid-template-columns:1fr;gap:28px}
  .aside-stack{position:static}
  .article-content{padding:30px 26px}
  .cta-panel{grid-template-columns:1fr;padding:34px 28px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .article-head{padding-top:32px}
  .article-main{padding:34px 0 52px}
  .section{padding:56px 0}
  .article-content{padding:24px 20px;border-radius:14px}
  .article-content h2{font-size:21px}
  .article-meta{gap:8px 14px;font-size:13px}
  .form-grid{grid-template-columns:1fr}
  .card-grid{grid-template-columns:1fr}
  .cta-panel{padding:28px 20px}
  .breadcrumb .current{max-width:52vw}
}
@media (max-width:520px){
  .logo-text{font-size:15.5px}
  .article-head h1{font-size:26px}
  .section-head h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .nav-actions .btn-sm{padding:0 12px;font-size:13px}
}

/* roulang page: category3 */
:root{
  --c-primary:#14665A;
  --c-primary-deep:#0F564C;
  --c-panel:#0B3B36;
  --c-mist:#7FB3A6;
  --c-mist-bg:#E4EFEA;
  --c-accent:#E0703A;
  --bg:#F7F8F5;
  --bg-2:#EEF2EE;
  --card:#FFFFFF;
  --ink:#16201D;
  --ink-2:#4A5A55;
  --ink-3:#7C8A85;
  --line:#DCE5E0;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --shadow-sm:0 1px 2px rgba(16,40,34,.06), 0 8px 24px -12px rgba(16,40,34,.18);
  --shadow-lg:0 16px 32px -14px rgba(16,40,34,.26);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.88;
  letter-spacing:0;
}
img{max-width:100%;display:block;border-radius:var(--r-md)}
a{color:var(--c-primary);text-decoration:none}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-0.01em;color:var(--ink)}
p{margin:0 0 1.15em}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:3px solid rgba(20,102,90,.35);outline-offset:2px;border-radius:6px}

.container{max-width:1200px;margin:0 auto;padding:0 24px}
@media(max-width:640px){.container{padding:0 16px}}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:14px 0;background:linear-gradient(180deg,rgba(247,248,245,.96),rgba(247,248,245,.72));backdrop-filter:blur(6px)}
.nav-panel{
  display:flex;align-items:center;gap:16px;flex-wrap:nowrap;
  padding:10px 14px;
  background:rgba(255,255,255,.9);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-sm);
  backdrop-filter:blur(8px);
}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:17px;white-space:nowrap}
.logo-mark{width:38px;height:38px;border-radius:12px;background:var(--c-panel);color:#F2F7F4;display:grid;place-items:center;font-size:17px;flex:none}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:wrap}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 12px;border-radius:var(--r-md);
  background:var(--bg-2);color:var(--ink-2);
  font-size:14px;transition:background .2s ease,color .2s ease,transform .2s ease;
}
.nav-item i{font-size:13px;color:var(--c-mist)}
.nav-item:hover{background:var(--c-mist-bg);color:var(--c-primary);transform:translateY(-1px)}
.nav-item.active{background:var(--c-primary);color:#F2F7F4}
.nav-item.active i{color:#CDE6DF}
.nav-actions{display:flex;align-items:center;gap:8px}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--r-md);
  border:1px solid var(--line);background:#fff;color:var(--c-primary);cursor:pointer;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease,transform .15s ease;
  cursor:pointer;
}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--c-primary);color:#F2F7F4}
.btn-primary:hover{background:var(--c-primary-deep);box-shadow:var(--shadow-lg)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-mist-bg)}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover{background:#C95F2C;box-shadow:var(--shadow-lg)}
.btn-outline-light{background:transparent;color:#F2F7F4;border-color:rgba(242,247,244,.55)}
.btn-outline-light:hover{background:rgba(242,247,244,.14)}
.btn-sm{min-height:40px;padding:0 15px;font-size:14px}
.text-link{color:var(--c-primary);font-weight:600;border-bottom:2px solid rgba(20,102,90,.28);padding-bottom:2px;transition:border-color .2s ease,color .2s ease}
.text-link:hover{border-color:var(--c-accent);color:var(--c-primary-deep)}

/* ---------- breadcrumb ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);margin-bottom:22px}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:var(--ink-3)}
.breadcrumb .current{color:var(--c-primary);font-weight:600}

/* ---------- sections ---------- */
.section{padding:104px 0}
.section-tight{padding:64px 0}
.section-mist{background:var(--c-mist-bg)}
.section-plain{background:var(--bg-2)}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--c-primary);background:#fff;border:1px solid var(--line);
  padding:5px 12px;border-radius:6px;margin-bottom:16px;
}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:clamp(22px,2.8vw,32px);font-weight:700;margin-bottom:14px}
.section-head p{color:var(--ink-2);margin:0}
.head-rule{width:56px;height:4px;border-radius:3px;background:var(--c-primary);margin:0 0 20px}
.sec-num{font-size:13px;color:var(--ink-3);letter-spacing:.16em;display:block;margin-bottom:10px}

/* ---------- page hero ---------- */
.page-hero{padding:56px 0 64px}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center}
.hero-copy h1{font-size:clamp(28px,4.2vw,44px);font-weight:700;margin-bottom:18px}
.hero-copy h1 .hl{color:var(--c-primary)}
.hero-lead{color:var(--ink-2);font-size:17px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:var(--c-primary);background:#fff;
  border:1px solid var(--line);border-radius:6px;padding:6px 12px;
}
.badge i{color:var(--c-mist)}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-lg);border:1px solid var(--line);background:var(--c-mist-bg);
}
.hero-float{
  position:absolute;left:16px;bottom:-18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--shadow-sm);padding:12px 16px;font-size:13px;color:var(--ink-2);
  display:flex;align-items:center;gap:10px;
}
.hero-float strong{color:var(--c-primary);font-size:18px;font-variant-numeric:tabular-nums}

/* ---------- compare table ---------- */
.table-shell{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-sm);overflow:hidden}
.table-scroll{overflow-x:auto;padding:4px}
.table-shell::after{
  content:"";position:absolute;top:0;right:0;width:44px;height:100%;
  background:linear-gradient(to left,#fff,rgba(255,255,255,0));
  pointer-events:none;
}
.compare-table{width:100%;border-collapse:collapse;min-width:780px;font-size:15px}
.compare-table thead th{
  background:var(--c-mist-bg);color:var(--c-panel);font-weight:600;
  padding:16px 18px;text-align:left;white-space:nowrap;border-bottom:1px solid var(--line);
}
.compare-table tbody th{
  background:#fff;font-weight:600;color:var(--ink);text-align:left;
  padding:16px 18px;border-bottom:1px solid var(--line);white-space:nowrap;vertical-align:top;
}
.compare-table tbody td{
  padding:16px 18px;border-bottom:1px solid var(--line);color:var(--ink-2);vertical-align:top;
}
.compare-table tbody tr:nth-child(even) th,
.compare-table tbody tr:nth-child(even) td{background:#FAFBF9}
.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td{border-bottom:none}
.scroll-hint{display:none;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-top:12px}
.scroll-hint i{color:var(--c-mist)}

/* ---------- timeline ---------- */
.timeline{margin-top:8px}
.tl-item{position:relative;padding:0 0 34px 76px}
.tl-item::before{content:"";position:absolute;left:23px;top:52px;bottom:-2px;width:2px;background:linear-gradient(var(--c-mist),var(--c-mist-bg))}
.tl-item:last-child{padding-bottom:0}
.tl-item:last-child::before{display:none}
.tl-node{
  position:absolute;left:0;top:0;width:48px;height:48px;border-radius:50%;
  background:#fff;border:2px solid var(--c-mist);color:var(--c-primary);
  display:grid;place-items:center;font-weight:700;font-size:16px;font-variant-numeric:tabular-nums;
}
.tl-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:20px 22px;box-shadow:var(--shadow-sm);transition:box-shadow .2s ease,transform .2s ease}
.tl-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.tl-card h3{font-size:19px;font-weight:600;margin-bottom:8px}
.tl-card p{color:var(--ink-2);font-size:15px;margin:0}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{font-size:12.5px;color:var(--c-primary);background:var(--c-mist-bg);border-radius:6px;padding:4px 10px}

/* ---------- stats panel ---------- */
.stats-panel{background:var(--c-panel);border-radius:20px;padding:48px 44px;color:#F2F7F4}
.stats-panel h2{color:#F2F7F4;font-size:clamp(22px,2.8vw,32px);margin-bottom:14px}
.stats-panel .lead{color:rgba(242,247,244,.78);max-width:720px;margin:0 0 34px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-block{border-left:2px solid rgba(127,179,166,.45);padding-left:18px}
.stat-num{font-size:clamp(28px,3.4vw,40px);font-weight:700;color:var(--c-accent);font-variant-numeric:tabular-nums;line-height:1.15}
.stat-label{font-size:15px;font-weight:600;color:#F2F7F4;margin-top:6px}
.stat-desc{font-size:13.5px;color:rgba(242,247,244,.7);margin-top:4px}

/* ---------- related cards ---------- */
.related-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px}
.related-grid .card-stack{display:grid;gap:16px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:box-shadow .2s ease,transform .2s ease;
  display:flex;flex-direction:column;
}
.card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;background:var(--c-mist-bg)}
.card-body{padding:20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:19px;font-weight:600}
.card-body p{color:var(--ink-2);font-size:14.5px;margin:0}
.card-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--ink-3)}
.mini-card{display:grid;grid-template-columns:130px 1fr;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:12px;box-shadow:var(--shadow-sm);transition:box-shadow .2s ease,transform .2s ease}
.mini-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.mini-card img{width:100%;height:100%;min-height:92px;object-fit:cover;border-radius:10px;background:var(--c-mist-bg)}
.mini-card h3{font-size:16.5px;font-weight:600;margin-bottom:6px}
.mini-card p{font-size:13.5px;color:var(--ink-2);margin:0}

/* ---------- cta band ---------- */
.cta-band{background:var(--c-panel);border-radius:20px;padding:44px;color:#F2F7F4}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{color:#F2F7F4;font-size:clamp(22px,2.6vw,30px);margin-bottom:12px}
.cta-band p{color:rgba(242,247,244,.76);margin:0;max-width:640px}
.cta-btns{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- footer ---------- */
.site-footer{background:var(--c-panel);color:rgba(242,247,244,.8);margin-top:96px;padding:64px 0 28px;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:36px;border-bottom:1px solid rgba(127,179,166,.22)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .logo-mark{background:rgba(242,247,244,.12)}
.footer-brand .logo-text{color:#F2F7F4;font-weight:700;font-size:17px}
.footer-col p{color:rgba(242,247,244,.72);font-size:14px;margin:0 0 8px}
.footer-col h4{color:#F2F7F4;font-size:15px;font-weight:600;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:rgba(242,247,244,.78)}
.footer-col a:hover{color:#fff;border-bottom:1px solid var(--c-accent)}
.footer-bottom{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding-top:20px;font-size:13px;color:rgba(242,247,244,.6)}

/* ---------- responsive ---------- */
@media(max-width:1023px){
  .nav-panel{flex-wrap:wrap}
  .brand{margin-right:auto}
  .nav-toggle{display:inline-flex}
  .nav-links{
    order:3;flex-basis:100%;margin:10px 0 0;
    flex-direction:column;align-items:stretch;gap:8px;display:none;
  }
  .nav-links.open{display:flex}
  .nav-actions{order:4;flex-basis:100%;margin-top:10px}
  .nav-actions .btn{flex:1}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-media{order:-1}
  .related-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .section{padding:64px 0}
  .section-tight{padding:48px 0}
  .stats-panel{padding:36px 28px}
  .cta-band{padding:32px 24px}
}
@media(max-width:767px){
  .page-hero{padding:32px 0 40px}
  .hero-copy h1{font-size:clamp(26px,7vw,32px)}
  .scroll-hint{display:flex}
  .table-shell::after{width:36px}
  .tl-item{padding-left:64px}
  .tl-node{width:42px;height:42px;font-size:15px}
  .tl-item::before{left:20px;top:46px}
  .mini-card{grid-template-columns:1fr}
  .mini-card img{height:150px;min-height:0}
  .section{padding:56px 0}
  .section-tight{padding:40px 0}
}
@media(max-width:519px){
  .stats-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .cta-btns .btn{width:100%}
}

/* roulang page: category2 */
:root{
  --c-primary:#14665A;
  --c-primary-dark:#0F564C;
  --c-panel:#0B3B36;
  --c-mist:#7FB3A6;
  --c-mist-bg:#E4EFEA;
  --c-accent:#E0703A;
  --bg-page:#F7F8F5;
  --bg-card:#FFFFFF;
  --bg-sub:#EEF2EE;
  --ink:#16201D;
  --ink-2:#4A5A55;
  --ink-3:#7C8A85;
  --border:#DCE5E0;
  --radius-card:16px;
  --radius-sm:12px;
  --radius-btn:10px;
  --radius-tag:6px;
  --shadow-1:0 1px 2px rgba(16,40,34,.06),0 8px 24px -12px rgba(16,40,34,.18);
  --shadow-2:0 16px 32px -14px rgba(16,40,34,.26);
  --maxw:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:104px;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.88;
  color:var(--ink);
  background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-0.01em;font-weight:700;}
p{margin:0;}
h1{font-size:clamp(28px,4.2vw,44px);font-weight:700;}
h2{font-size:clamp(22px,2.8vw,32px);font-weight:700;}
h3{font-size:19px;font-weight:600;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:3px solid rgba(20,102,90,.35);
  outline-offset:2px;
  border-radius:8px;
}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;border:1.5px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn:active{transform:scale(.98);}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-dark);box-shadow:var(--shadow-2);}
.btn-outline{background:#fff;color:var(--c-primary);border-color:var(--c-primary);}
.btn-outline:hover{background:var(--c-mist-bg);}
.btn-accent{background:var(--c-accent);color:#fff;}
.btn-accent:hover{background:#C85F2D;box-shadow:0 12px 26px -14px rgba(224,112,58,.7);}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;}
.btn-full{width:100%;}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-size:14px;font-weight:600;
  border-bottom:2px solid transparent;padding-bottom:2px;
  transition:border-color .2s ease,color .2s ease;
}
.link-arrow:hover{border-bottom-color:var(--c-accent);color:var(--c-primary-dark);}
.link-arrow i{font-size:12px;transition:transform .2s ease;}
.link-arrow:hover i{transform:translateX(3px);}

.tag{
  display:inline-flex;align-items:center;
  font-size:13px;font-weight:600;color:var(--c-primary);
  background:var(--c-mist-bg);border-radius:var(--radius-tag);
  padding:4px 10px;line-height:1.5;
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  padding:12px 0;
  background:transparent;
}
.nav-panel{
  position:relative;
  display:flex;align-items:center;gap:16px;
  background:rgba(255,255,255,.9);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border:1px solid var(--border);
  border-radius:16px;
  padding:10px 14px;
  box-shadow:var(--shadow-1);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;}
.logo-mark{
  width:38px;height:38px;flex:none;
  border-radius:10px;background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;
}
.logo-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-0.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:nowrap;}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 13px;border-radius:var(--radius-btn);
  font-size:14px;font-weight:500;color:var(--ink-2);
  background:transparent;transition:background-color .2s ease,color .2s ease;
}
.nav-item i{font-size:13px;color:var(--c-mist);transition:color .2s ease;}
.nav-item:hover{background:var(--c-mist-bg);color:var(--c-primary);}
.nav-item:hover i{color:var(--c-primary);}
.nav-item.active{background:var(--c-primary);color:#fff;}
.nav-item.active i{color:#fff;}
.nav-cta{display:flex;align-items:center;gap:8px;flex:none;}
.nav-toggle{
  display:none;width:42px;height:42px;flex:none;
  align-items:center;justify-content:center;
  border:1px solid var(--border);border-radius:var(--radius-btn);
  background:#fff;color:var(--c-primary);font-size:16px;cursor:pointer;
  transition:background-color .2s ease;
}
.nav-toggle:hover{background:var(--c-mist-bg);}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:14px;color:var(--ink-2);margin-bottom:20px;
}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:var(--ink-3);}
.breadcrumb .current{color:var(--ink-3);}

/* ---------- 页头 ---------- */
.page-hero{padding:28px 0 64px;background:var(--bg-page);}
.hero-grid{
  display:grid;grid-template-columns:6fr 5fr;gap:44px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c-primary);
  background:var(--c-mist-bg);border-radius:var(--radius-tag);
  padding:5px 12px;margin-bottom:18px;
}
.hero-copy h1{margin-bottom:18px;}
.hero-sub{font-size:17px;color:var(--ink-2);line-height:1.9;max-width:34em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-badges{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;
}
.hero-badges li{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;color:var(--ink-2);
  background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-sm);padding:9px 14px;
  box-shadow:var(--shadow-1);
}
.hero-badges i{color:var(--c-primary);font-size:13px;}
.hero-media{
  position:relative;border-radius:16px;overflow:hidden;
  border:1px solid var(--border);background:var(--c-mist-bg);
  box-shadow:var(--shadow-1);
}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.media-badge{
  position:absolute;left:16px;bottom:16px;
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.94);
  border-radius:var(--radius-tag);
  padding:8px 14px;font-size:13.5px;font-weight:600;color:var(--c-primary);
  box-shadow:var(--shadow-1);
}
.media-badge .dot{
  width:8px;height:8px;border-radius:50%;background:var(--c-accent);
}

/* ---------- 区块 ---------- */
.section{padding:88px 0;}
.section-sub{background:var(--bg-sub);}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-num{
  display:inline-block;font-size:13px;font-weight:700;color:var(--c-mist);
  letter-spacing:.28em;margin-bottom:12px;
}
.section-head h2{margin-bottom:14px;}
.section-head p{font-size:16px;color:var(--ink-2);}
.section-head-row{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:40px;
}
.section-head-row h2{margin:0;}

/* ---------- 主内容：目录 + 条目 ---------- */
.split-layout{
  display:grid;grid-template-columns:3fr 9fr;gap:32px;align-items:start;
}
.toc{
  position:sticky;top:104px;
  background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-card);padding:24px 20px;
  box-shadow:var(--shadow-1);
}
.toc-title{
  font-size:13px;font-weight:700;color:var(--ink-3);letter-spacing:.18em;
  margin-bottom:16px;
}
.toc-list li+li{margin-top:3px;}
.toc-list a{
  display:flex;gap:10px;align-items:baseline;
  padding:9px 12px;border-radius:var(--radius-btn);
  font-size:14px;line-height:1.55;color:var(--ink-2);
  transition:background-color .2s ease,color .2s ease;
}
.toc-list a:hover{background:var(--c-mist-bg);color:var(--c-primary);}
.toc-list a span{
  font-size:12px;font-weight:700;color:var(--c-mist);
  font-variant-numeric:tabular-nums;flex:none;
}
.toc-cta{
  margin-top:20px;padding-top:18px;border-top:1px solid var(--border);
}
.toc-cta p{font-size:13.5px;color:var(--ink-3);margin-bottom:8px;}

.entry-list{display:flex;flex-direction:column;gap:20px;}
.entry-card{
  position:relative;overflow:hidden;
  background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-card);padding:26px 28px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .2s ease,transform .2s ease;
}
.entry-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--c-primary);opacity:0;transition:opacity .2s ease;
}
.entry-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.entry-card:hover::before{opacity:1;}
.entry-card:target{border-color:var(--c-mist);}
.entry-card:target::before{opacity:1;}
.entry-top{display:flex;align-items:center;gap:12px;margin-bottom:12px;}
.entry-index{
  flex:none;font-size:13px;font-weight:700;color:#fff;
  background:var(--c-primary);border-radius:var(--radius-tag);
  padding:3px 10px;font-variant-numeric:tabular-nums;letter-spacing:.04em;
}
.entry-top h3{font-size:19px;font-weight:600;}
.entry-desc{font-size:15.5px;color:var(--ink-2);line-height:1.9;}
.entry-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.entry-tags li{
  font-size:13px;color:var(--c-primary);background:var(--c-mist-bg);
  border-radius:var(--radius-tag);padding:4px 10px;line-height:1.6;
}
.entry-card .link-arrow{margin-top:18px;}

/* ---------- 深色数据面板 ---------- */
.section-dark{padding:64px 0;background:var(--bg-page);}
.dark-panel{
  position:relative;overflow:hidden;
  background:var(--c-panel);border-radius:20px;
  padding:52px 48px;color:#F2F7F4;
}
.panel-deco{
  position:absolute;inset:0;width:100%;height:100%;
  opacity:.5;pointer-events:none;
}
.dark-head{position:relative;max-width:720px;}
.dark-head h2{color:#fff;margin-bottom:14px;}
.dark-head p{font-size:15.5px;color:#A9C4BC;}
.stat-grid{
  position:relative;display:grid;grid-template-columns:repeat(4,1fr);
  gap:20px;margin-top:40px;
}
.stat-grid li{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(127,179,166,.24);
  border-radius:var(--radius-sm);padding:22px 20px;
}
.stat-grid strong{
  display:block;font-size:clamp(28px,3.4vw,40px);font-weight:700;color:#fff;
  line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:-0.02em;
}
.stat-grid strong em{font-style:normal;font-size:16px;color:var(--c-accent);margin-left:4px;}
.stat-grid span{display:block;margin-top:10px;font-size:14px;color:#A9C4BC;line-height:1.7;}

/* ---------- 表单区 ---------- */
.form-layout{
  display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:start;
}
.form-intro h2{margin-bottom:16px;}
.form-intro p{font-size:16px;color:var(--ink-2);}
.contact-list{margin-top:30px;display:flex;flex-direction:column;gap:14px;}
.contact-list li{
  display:flex;gap:14px;align-items:flex-start;
  background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-sm);padding:16px 18px;
  box-shadow:var(--shadow-1);
}
.contact-list i{
  width:38px;height:38px;flex:none;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-mist-bg);color:var(--c-primary);font-size:15px;
}
.contact-list span{display:block;font-size:13px;color:var(--ink-3);line-height:1.6;}
.contact-list strong{display:block;font-size:15.5px;color:var(--ink);font-weight:600;}

.booking-form{
  display:grid;grid-template-columns:1fr 1fr;gap:20px;
  background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-card);padding:32px;
  box-shadow:var(--shadow-1);
}
.field{display:flex;flex-direction:column;gap:8px;}
.field-full{grid-column:1/-1;}
.field label{font-size:14px;font-weight:600;color:var(--ink-2);}
.field input,.field select,.field textarea{
  width:100%;min-height:44px;border:1px solid var(--border);
  border-radius:var(--radius-btn);padding:10px 14px;
  font-size:15px;background:#fff;
  transition:border-color .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:114px;resize:vertical;padding-top:12px;line-height:1.8;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);background:var(--c-mist-bg);
  box-shadow:0 0 0 3px rgba(20,102,90,.12);
}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3);}
.privacy{
  grid-column:1/-1;display:flex;gap:10px;align-items:flex-start;
  font-size:13px;line-height:1.75;color:var(--ink-2);
  background:var(--c-mist-bg);border-radius:var(--radius-sm);padding:14px 16px;
}
.privacy input{
  width:16px;height:16px;margin-top:4px;flex:none;accent-color:var(--c-primary);
}
.privacy-note{
  grid-column:1/-1;font-size:13px;color:var(--ink-3);line-height:1.7;
}

/* ---------- 卡片网格 ---------- */
.card-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.info-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:box-shadow .2s ease,transform .2s ease;
}
.info-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.info-media{background:var(--c-mist-bg);}
.info-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.info-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.info-body h3{font-size:18px;}
.info-body p{font-size:14.5px;color:var(--ink-2);line-height:1.85;}
.info-body .link-arrow{margin-top:auto;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.faq-item{
  background:#fff;border:1px solid var(--border);
  border-left:3px solid var(--border);
  border-radius:var(--radius-sm);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:border-left-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-left-color:var(--c-primary);box-shadow:var(--shadow-2);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink);
  line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:20px;line-height:1;color:var(--c-primary);flex:none;
  transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"−";}
.faq-body{padding:0 22px 20px;font-size:15px;color:var(--ink-2);line-height:1.88;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-panel);color:#B9CFC8;padding:64px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;
  padding-bottom:44px;border-bottom:1px solid rgba(127,179,166,.2);
}
.footer-col h4{font-size:15px;font-weight:600;color:#F2F7F4;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li:last-child{margin-bottom:0;}
.footer-col a{font-size:14px;color:#B9CFC8;}
.footer-col a:hover{color:#fff;}
.footer-col p{font-size:14px;line-height:1.9;margin-bottom:10px;color:#B9CFC8;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .logo-text{font-size:18px;color:#fff;}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  padding:22px 0;font-size:13px;color:#8FA9A2;
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .nav-item{padding:8px 10px;font-size:13.5px;}
}
@media (max-width:1024px){
  .nav-links{
    display:none;
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;border:1px solid var(--border);
    border-radius:16px;padding:12px;margin-left:0;
    box-shadow:var(--shadow-2);
  }
  .nav-links.open{display:flex;}
  .nav-item{width:100%;padding:12px 14px;font-size:14.5px;}
  .nav-toggle{display:inline-flex;}
  .nav-cta{margin-left:auto;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-media{order:-1;}
  .split-layout{grid-template-columns:1fr;gap:24px;}
  .toc{position:static;}
  .form-layout{grid-template-columns:1fr;gap:32px;}
  .card-grid-3{grid-template-columns:1fr 1fr;}
  .stat-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .section-tight{padding:40px 0;}
  .section-dark{padding:40px 0;}
  .page-hero{padding:20px 0 40px;}
  .dark-panel{padding:32px 22px;border-radius:16px;}
  .booking-form{grid-template-columns:1fr;padding:22px;gap:16px;}
  .entry-card{padding:22px 20px;}
  .faq-grid{grid-template-columns:1fr;}
  .card-grid-3{grid-template-columns:1fr;}
  .section-head-row{flex-direction:column;align-items:flex-start;gap:12px;}
  .nav-cta .btn{padding:0 14px;font-size:13.5px;}
  .logo-text{font-size:15.5px;}
  .site-footer{padding-top:48px;}
  .hero-badges li{font-size:13px;}
}
@media (max-width:520px){
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .stat-grid{gap:14px;}
  .stat-grid li{padding:18px 16px;}
  .nav-cta .btn span{display:none;}
  .nav-cta .btn{padding:0 12px;}
}

/* roulang page: category4 */
:root{
    --c-primary:#14665A;
    --c-primary-dark:#0F564C;
    --c-deep:#0B3B36;
    --c-mist:#7FB3A6;
    --c-mist-bg:#E4EFEA;
    --c-accent:#E0703A;
    --c-bg:#F7F8F5;
    --c-surface:#FFFFFF;
    --c-surface-2:#EEF2EE;
    --c-text:#16201D;
    --c-text-2:#4A5A55;
    --c-text-3:#7C8A85;
    --c-inverse:#F2F7F4;
    --c-border:#DCE5E0;
    --r-card:16px;
    --r-card-sm:12px;
    --r-btn:10px;
    --r-tag:6px;
    --r-input:10px;
    --sh-1:0 1px 2px rgba(16,40,34,.06), 0 8px 24px -12px rgba(16,40,34,.18);
    --sh-2:0 16px 32px -14px rgba(16,40,34,.26);
    --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:var(--font-cn);
    font-size:16px;
    line-height:1.88;
    color:var(--c-text);
    background:var(--c-bg);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;height:auto;}
  a{color:inherit;text-decoration:none;}
  button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  h1,h2,h3{line-height:1.3;letter-spacing:-.01em;font-weight:700;}
  :focus-visible{outline:3px solid rgba(20,102,90,.35);outline-offset:2px;border-radius:6px;}

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

  /* ---------- header / nav ---------- */
  .site-header{position:sticky;top:0;z-index:60;padding:12px 0;background:linear-gradient(180deg,rgba(247,248,245,.92),rgba(247,248,245,.72));backdrop-filter:blur(6px);}
  .nav-card{
    display:flex;align-items:center;gap:16px;
    background:rgba(255,255,255,.92);
    border:1px solid var(--c-border);
    border-radius:var(--r-card);
    box-shadow:var(--sh-1);
    padding:10px 14px;
    backdrop-filter:blur(8px);
  }
  .brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
  .logo-mark{
    width:40px;height:40px;border-radius:12px;
    background:var(--c-primary);color:#fff;
    display:inline-flex;align-items:center;justify-content:center;
    font-size:17px;box-shadow:0 6px 16px -8px rgba(20,102,90,.7);
  }
  .logo-text{font-weight:700;font-size:17px;letter-spacing:-.01em;white-space:nowrap;}
  .nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:wrap;}
  .nav-item{
    display:inline-flex;align-items:center;gap:7px;
    padding:9px 12px;border-radius:12px;
    font-size:14px;color:var(--c-text-2);font-weight:500;
    background:var(--c-mist-bg);
    transition:background .2s ease,color .2s ease,transform .2s ease;
    white-space:nowrap;
  }
  .nav-item i{font-size:13px;color:var(--c-primary);}
  .nav-item:hover{background:#D5E6DF;color:var(--c-primary);transform:translateY(-1px);}
  .nav-item.active{background:var(--c-primary);color:#fff;}
  .nav-item.active i{color:#fff;}
  .nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .nav-toggle{
    display:none;margin-left:auto;
    width:44px;height:44px;border-radius:12px;
    border:1px solid var(--c-border);background:#fff;color:var(--c-primary);
    align-items:center;justify-content:center;cursor:pointer;font-size:17px;
    transition:background .2s ease;
  }
  .nav-toggle:hover{background:var(--c-mist-bg);}
  .nav-mobile{display:none;margin-top:10px;background:rgba(255,255,255,.97);border:1px solid var(--c-border);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:12px;}
  .nav-mobile a{
    display:flex;align-items:center;gap:10px;
    padding:12px;border-radius:12px;font-size:15px;color:var(--c-text-2);
    background:var(--c-surface-2);margin-bottom:8px;
  }
  .nav-mobile a:last-of-type{margin-bottom:12px;}
  .nav-mobile a.active{background:var(--c-primary);color:#fff;}
  .nav-mobile a i{color:var(--c-primary);}
  .nav-mobile a.active i{color:#fff;}

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:0 18px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;border:1.5px solid transparent;
    cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .15s ease;
  }
  .btn:active{transform:scale(.98);}
  .btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 22px -14px rgba(20,102,90,.85);}
  .btn-primary:hover{background:var(--c-primary-dark);box-shadow:var(--sh-2);}
  .btn-outline{background:#fff;color:var(--c-primary);border-color:var(--c-primary);}
  .btn-outline:hover{background:var(--c-mist-bg);}
  .btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 10px 22px -14px rgba(224,112,58,.85);}
  .btn-accent:hover{background:#CC5F2C;}
  .btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-border);}
  .btn-ghost:hover{background:var(--c-mist-bg);border-color:var(--c-mist);}
  .btn-sm{min-height:38px;padding:0 14px;font-size:14px;}

  /* ---------- generic ---------- */
  .section{padding:88px 0;}
  .section-sm{padding:64px 0;}
  .section-lg{padding:104px 0;}
  .section-mist{background:var(--c-mist-bg);}
  .section-light{background:var(--c-surface-2);}
  .section-deep{background:var(--c-deep);color:var(--c-inverse);}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:600;letter-spacing:.08em;
    color:var(--c-primary);background:var(--c-mist-bg);
    padding:5px 12px;border-radius:var(--r-tag);
  }
  .section-deep .eyebrow{background:rgba(127,179,166,.18);color:var(--c-mist);}
  .section-head{max-width:760px;margin-bottom:40px;}
  .section-head h2{font-size:clamp(22px,2.8vw,32px);margin-bottom:14px;}
  .section-head p{color:var(--c-text-2);font-size:16px;}
  .section-deep .section-head p{color:rgba(242,247,244,.78);}
  .divider{height:1px;background:var(--c-border);border:0;margin:0;}
  .tag{
    display:inline-flex;align-items:center;gap:6px;
    font-size:13px;font-weight:600;color:var(--c-primary);
    background:var(--c-mist-bg);border-radius:var(--r-tag);padding:4px 10px;
  }
  .tag-accent{background:rgba(224,112,58,.12);color:#B9552A;}

  /* ---------- breadcrumb ---------- */
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-text-2);margin-bottom:24px;}
  .breadcrumb a{color:var(--c-text-2);transition:color .2s ease;}
  .breadcrumb a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
  .breadcrumb span.sep{color:var(--c-text-3);}
  .breadcrumb .current{color:var(--c-primary);font-weight:600;}

  /* ---------- hero ---------- */
  .hero{padding:52px 0 72px;background:
      radial-gradient(900px 420px at 88% -10%,rgba(127,179,166,.22),transparent 62%),
      var(--c-bg);}
  .hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
  .hero h1{font-size:clamp(28px,4.2vw,44px);margin:18px 0 18px;}
  .hero h1 em{font-style:normal;color:var(--c-primary);}
  .lede{font-size:17px;line-height:1.9;color:var(--c-text-2);max-width:620px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
  .hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
  .point-chip{
    display:inline-flex;align-items:center;gap:8px;
    background:#fff;border:1px solid var(--c-border);border-radius:var(--r-tag);
    padding:8px 12px;font-size:13px;color:var(--c-text-2);box-shadow:0 1px 2px rgba(16,40,34,.05);
  }
  .point-chip i{color:var(--c-primary);font-size:12px;}
  .hero-media{position:relative;}
  .hero-media img{
    width:100%;aspect-ratio:16/10;object-fit:cover;
    border-radius:var(--r-card);border:1px solid var(--c-border);
    background:var(--c-mist-bg);
  }
  .float-card{
    position:absolute;left:-18px;bottom:-22px;
    background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card-sm);
    box-shadow:var(--sh-2);padding:14px 18px;min-width:190px;
  }
  .float-card strong{display:block;font-size:24px;color:var(--c-primary);line-height:1.2;}
  .float-card span{font-size:13px;color:var(--c-text-3);}

  /* ---------- quick entry ---------- */
  .entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
  .entry-card{
    background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
    padding:24px;box-shadow:var(--sh-1);
    transition:transform .2s ease,box-shadow .2s ease;
    position:relative;overflow:hidden;
  }
  .entry-card::before{content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;background:var(--c-primary);border-radius:0 3px 3px 0;}
  .entry-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
  .entry-icon{
    width:44px;height:44px;border-radius:12px;background:var(--c-mist-bg);color:var(--c-primary);
    display:inline-flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px;
  }
  .entry-card h3{font-size:18px;margin-bottom:8px;}
  .entry-card p{font-size:15px;color:var(--c-text-2);line-height:1.85;}
  .entry-card a.more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;font-weight:600;color:var(--c-primary);border-bottom:2px solid transparent;transition:border-color .2s ease;}
  .entry-card a.more:hover{border-bottom-color:var(--c-accent);}

  /* ---------- FAQ ---------- */
  .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:start;}
  .faq-col{display:flex;flex-direction:column;gap:16px;}
  .faq-item{
    background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card-sm);
    overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
  }
  .faq-item[open]{border-color:rgba(20,102,90,.32);box-shadow:var(--sh-1);}
  .faq-item summary{
    list-style:none;cursor:pointer;position:relative;
    display:flex;align-items:flex-start;gap:12px;
    padding:17px 18px;font-size:16px;font-weight:600;color:var(--c-text);
    transition:color .2s ease,background .2s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::before{
    content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
    background:var(--c-primary);border-radius:0 3px 3px 0;opacity:0;transition:opacity .2s ease;
  }
  .faq-item[open] summary::before{opacity:1;}
  .faq-item summary:hover{color:var(--c-primary);background:#FBFCFA;}
  .faq-item summary .chev{margin-left:auto;color:var(--c-mist);font-size:14px;transition:transform .25s ease;flex:0 0 auto;padding-top:4px;}
  .faq-item[open] summary .chev{transform:rotate(180deg);color:var(--c-primary);}
  .faq-answer{padding:0 18px 20px 18px;font-size:15px;line-height:1.85;color:var(--c-text-2);}
  .faq-answer strong{color:var(--c-text);}
  .faq-note{
    margin-top:28px;background:#fff;border:1px dashed var(--c-border);border-radius:var(--r-card-sm);
    padding:18px 20px;font-size:14px;color:var(--c-text-2);
    display:flex;flex-wrap:wrap;align-items:center;gap:14px;justify-content:space-between;
  }

  /* ---------- form ---------- */
  .form-wrap{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:start;}
  .form-side h2{font-size:clamp(22px,2.8vw,32px);margin:16px 0 14px;}
  .form-side p{color:var(--c-text-2);font-size:16px;}
  .side-list{margin-top:24px;display:flex;flex-direction:column;gap:14px;}
  .side-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--c-text-2);}
  .side-list i{color:var(--c-primary);margin-top:6px;font-size:13px;}
  .form-card{
    background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
    box-shadow:var(--sh-1);padding:28px;
  }
  .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
  .field{display:flex;flex-direction:column;gap:8px;}
  .field.full{grid-column:1 / -1;}
  .field label{font-size:14px;font-weight:600;color:var(--c-text-2);}
  .field .req{color:var(--c-accent);margin-left:4px;}
  .field input,.field select,.field textarea{
    width:100%;min-height:44px;padding:10px 12px;
    border:1px solid var(--c-border);border-radius:var(--r-input);
    background:#fff;font-size:15px;color:var(--c-text);
    transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
  }
  .field textarea{min-height:110px;resize:vertical;line-height:1.8;}
  .field input:hover,.field select:hover,.field textarea:hover{border-color:var(--c-mist);}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--c-primary);background:#FBFCFA;
    box-shadow:0 0 0 3px rgba(20,102,90,.14);
  }
  .form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:22px;}
  .privacy-box{
    margin-top:18px;background:var(--c-mist-bg);border-radius:var(--r-card-sm);
    padding:14px 16px;font-size:13px;line-height:1.8;color:var(--c-text-2);
  }
  .privacy-box label{display:flex;gap:10px;align-items:flex-start;cursor:pointer;}
  .privacy-box input[type="checkbox"]{margin-top:4px;width:16px;height:16px;accent-color:var(--c-primary);flex:0 0 auto;}
  .privacy-box a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}

  /* ---------- reading / related ---------- */
  .read-grid{display:grid;grid-template-columns:7fr 5fr;gap:36px;align-items:start;}
  .read-main{
    background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
    overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow .2s ease,transform .2s ease;
  }
  .read-main:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
  .read-main img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--c-mist-bg);}
  .read-main .body{padding:24px;}
  .read-main h3{font-size:20px;margin:14px 0 10px;}
  .read-main p{font-size:15px;color:var(--c-text-2);line-height:1.85;}
  .read-list{display:flex;flex-direction:column;gap:14px;}
  .read-item{
    display:flex;gap:16px;align-items:flex-start;
    background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card-sm);
    padding:16px;transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
  }
  .read-item:hover{box-shadow:var(--sh-1);transform:translateY(-2px);border-color:rgba(20,102,90,.28);}
  .read-item img{width:74px;height:74px;object-fit:cover;border-radius:12px;flex:0 0 auto;background:var(--c-mist-bg);}
  .read-item h3{font-size:16px;margin-bottom:6px;}
  .read-item p{font-size:14px;color:var(--c-text-2);line-height:1.75;}
  .read-item .meta{font-size:13px;color:var(--c-text-3);margin-top:8px;display:flex;gap:12px;flex-wrap:wrap;}

  /* ---------- CTA ---------- */
  .cta-band{
    background:var(--c-deep);color:var(--c-inverse);border-radius:var(--r-card);
    padding:44px;display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:center;
    position:relative;overflow:hidden;
  }
  .cta-band::after{
    content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
    background:radial-gradient(circle,rgba(127,179,166,.28),transparent 68%);
  }
  .cta-band h2{font-size:clamp(22px,2.8vw,30px);margin-bottom:14px;position:relative;}
  .cta-band p{color:rgba(242,247,244,.82);font-size:16px;position:relative;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;justify-content:flex-end;}
  .cta-stats{display:flex;gap:28px;flex-wrap:wrap;margin-top:24px;position:relative;}
  .cta-stats div strong{display:block;font-size:clamp(24px,3vw,34px);color:var(--c-accent);font-variant-numeric:tabular-nums;line-height:1.2;}
  .cta-stats div span{font-size:13px;color:rgba(242,247,244,.72);}

  /* ---------- footer ---------- */
  .site-footer{background:var(--c-deep);color:rgba(242,247,244,.82);padding:64px 0 28px;margin-top:0;}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
  .footer-brand .logo-mark{background:var(--c-primary);}
  .footer-brand .logo-text{color:#fff;}
  .footer-col p{font-size:14px;line-height:1.85;color:rgba(242,247,244,.7);margin-bottom:10px;}
  .footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
  .footer-col ul li{margin-bottom:10px;}
  .footer-col ul a{font-size:14px;color:rgba(242,247,244,.72);transition:color .2s ease;}
  .footer-col ul a:hover{color:var(--c-mist);text-decoration:underline;text-underline-offset:3px;}
  .footer-bottom{
    margin-top:40px;padding-top:20px;border-top:1px solid rgba(242,247,244,.14);
    display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
    font-size:13px;color:rgba(242,247,244,.6);
  }

  /* ---------- responsive ---------- */
  @media (max-width:1024px){
    .nav-links,.nav-actions{display:none;}
    .nav-toggle{display:inline-flex;}
    .hero-grid{grid-template-columns:1fr;gap:40px;}
    .hero-media{order:-1;}
    .float-card{left:auto;right:12px;bottom:-18px;}
    .entry-grid{grid-template-columns:1fr 1fr;}
    .faq-grid{grid-template-columns:1fr;}
    .form-wrap{grid-template-columns:1fr;gap:32px;}
    .read-grid{grid-template-columns:1fr;gap:28px;}
    .cta-band{grid-template-columns:1fr;padding:36px 28px;}
    .cta-actions{justify-content:flex-start;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  }
  @media (max-width:768px){
    .section{padding:56px 0;}
    .section-sm{padding:40px 0;}
    .section-lg{padding:56px 0;}
    .hero{padding:32px 0 56px;}
    .container{padding:0 16px;}
    .entry-grid{grid-template-columns:1fr;}
    .form-grid{grid-template-columns:1fr;}
    .form-card{padding:20px;}
    .cta-stats{gap:20px;}
  }
  @media (max-width:520px){
    body{font-size:16px;}
    .logo-text{font-size:15px;}
    .hero-actions .btn,.form-foot .btn{width:100%;}
    .float-card{position:static;margin-top:14px;box-shadow:var(--sh-1);}
    .read-item{flex-direction:row;}
    .footer-bottom{flex-direction:column;}
  }