/* roulang page: index */
:root{
  --primary:#0F766E;
  --primary-dark:#0B5F5A;
  --primary-light:#E6F2EF;
  --accent:#E9A23B;
  --accent-dark:#D98F2B;
  --warn:#C4552F;
  --bg:#F7F4EE;
  --bg-alt:#EEF4F0;
  --surface:#FFFFFF;
  --text:#172420;
  --muted:#5B6B66;
  --border:#D9E4DF;
  --footer-bg:#10231F;
  --footer-text:#EAF3EF;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-input:10px;
  --radius-img:14px;
  --shadow-sm:0 12px 30px rgba(15,118,110,.08);
  --shadow-md:0 18px 40px rgba(15,118,110,.14);
  --sec-pad:104px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent-dark)}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:3px solid rgba(233,162,59,.55);outline-offset:2px;border-radius:6px}

.container{max-width:1240px;padding-left:24px;padding-right:24px}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:.02em}
h1{font-size:clamp(2rem,4.2vw,3.25rem);font-weight:800;line-height:1.25}
h2{font-size:clamp(1.5rem,2.6vw,2rem);font-weight:700;line-height:1.35}
h3{font-size:1.25rem;font-weight:700;line-height:1.5}
.lead-text{color:var(--muted);font-size:1.05rem;line-height:1.85}
.section{padding:var(--sec-pad) 0}
.section-alt{background:var(--bg-alt)}
.section-head{max-width:760px;margin-bottom:52px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--primary);background:var(--primary-light);
  padding:6px 14px;border-radius:999px;margin-bottom:18px;
}
.section-head h2{margin-bottom:16px}
.section-desc{color:var(--muted);font-size:1.02rem;margin:0}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(247,244,238,.96);
  border-bottom:1px solid var(--border);
  backdrop-filter:saturate(140%) blur(4px);
}
.site-nav{padding:10px 0}
.brand{display:flex;align-items:center;gap:12px;padding:0;margin-right:8px}
.brand-mark{
  width:44px;height:44px;flex:0 0 44px;border-radius:14px;
  background:linear-gradient(140deg,var(--primary),var(--primary-dark));
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;
  box-shadow:var(--shadow-sm);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-name{font-size:1.08rem;font-weight:800;color:var(--text);letter-spacing:.02em}
.brand-sub{font-size:12px;color:var(--muted);letter-spacing:.06em}
.main-menu{gap:4px}
.main-menu .nav-link{
  color:var(--text);font-size:.98rem;font-weight:600;
  padding:10px 16px;border-radius:10px;position:relative;
}
.main-menu .nav-link:hover{color:var(--primary);background:var(--primary-light)}
.main-menu .nav-link.active{color:var(--primary)}
.main-menu .nav-link.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:4px;height:2px;
  background:var(--primary);border-radius:2px;
}
.nav-tail{display:flex;align-items:center;gap:14px}
.mega-wrap{position:relative}
.mega-toggle{
  background:none;border:0;color:var(--text);font-weight:600;font-size:.98rem;
  padding:10px 14px;border-radius:10px;display:inline-flex;align-items:center;gap:8px;
}
.mega-toggle:hover{color:var(--primary);background:var(--primary-light)}
.mega-toggle i{font-size:11px;transition:transform .2s ease}
.mega-wrap:hover .mega-toggle i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:760px;
  background:var(--surface);border:1px solid var(--border);border-radius:18px;
  box-shadow:var(--shadow-md);padding:26px;
  display:grid;grid-template-columns:1.1fr 1.1fr 1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{font-size:.86rem;letter-spacing:.1em;color:var(--muted);margin-bottom:14px;font-weight:700}
.mega-col ul li{margin-bottom:8px}
.mega-col ul li a{font-size:.95rem;color:var(--text);display:flex;align-items:center;gap:8px}
.mega-col ul li a:hover{color:var(--primary)}
.mega-col ul li a i{font-size:11px;color:var(--primary)}
.mega-mini{display:flex;gap:12px;align-items:flex-start;padding:10px;border-radius:12px;transition:background .2s ease}
.mega-mini:hover{background:var(--primary-light)}
.mega-mini .mega-thumb{width:56px;height:44px;border-radius:10px;object-fit:cover;flex:0 0 56px}
.mega-mini span{font-size:.9rem;color:var(--text);line-height:1.5}
.mega-card{
  background:linear-gradient(150deg,var(--primary),var(--primary-dark));
  border-radius:14px;padding:20px;color:#fff;
}
.mega-card h5{margin:0 0 8px;font-size:1rem;font-weight:700;color:#fff}
.mega-card p{font-size:.86rem;color:rgba(255,255,255,.86);margin-bottom:14px;line-height:1.7}
.mega-card a{
  display:inline-flex;align-items:center;gap:6px;background:var(--accent);color:#231a08;
  font-size:.85rem;font-weight:700;padding:8px 14px;border-radius:10px;
}
.mega-card a:hover{background:#fff;color:var(--primary-dark)}
.nav-cta{padding:10px 20px;font-size:.92rem}
.nav-toggler{
  border:1px solid var(--border);background:var(--surface);border-radius:10px;
  width:46px;height:42px;display:flex;flex-direction:column;justify-content:center;
  align-items:center;gap:5px;padding:0;
}
.nav-toggler:focus{box-shadow:none;outline:3px solid rgba(233,162,59,.5)}
.toggler-bar{width:20px;height:2px;background:var(--text);border-radius:2px}

/* ---------- 按钮 ---------- */
.btn{transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease}
.btn:focus-visible{box-shadow:0 0 0 3px rgba(233,162,59,.45);outline:none}
.btn-primary{
  background:var(--primary);border:1px solid var(--primary);color:#fff;
  border-radius:var(--radius-btn);padding:14px 30px;font-weight:700;
  box-shadow:var(--shadow-sm);
}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-outline{
  background:var(--surface);border:1px solid var(--primary);color:var(--primary);
  border-radius:var(--radius-btn);padding:14px 30px;font-weight:700;
}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-1px)}
.btn-accent{
  background:var(--accent);border:1px solid var(--accent);color:#231a08;
  border-radius:var(--radius-btn);padding:14px 30px;font-weight:700;
}
.btn-accent:hover{background:#fff;border-color:#fff;color:var(--primary-dark);transform:translateY(-1px)}
.btn-link-more{
  display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--primary);
  border-bottom:1px solid rgba(15,118,110,.35);padding-bottom:2px;
}
.btn-link-more:hover{color:var(--accent-dark);border-color:var(--accent-dark)}

/* ---------- Hero ---------- */
.hero{
  position:relative;padding:96px 0 104px;overflow:hidden;
  background-color:var(--bg);
  background-image:
    linear-gradient(100deg,rgba(247,244,238,.96) 0%,rgba(247,244,238,.88) 42%,rgba(238,244,240,.72) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center right;
}
.hero::after{
  content:"";position:absolute;right:-120px;top:-80px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(15,118,110,.10),rgba(15,118,110,0) 68%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero h1{margin:20px 0 20px}
.hero-sub{font-size:1.1rem;color:var(--muted);max-width:600px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-notes{display:flex;flex-wrap:wrap;gap:12px}
.hero-note{
  display:inline-flex;align-items:center;gap:8px;font-size:.88rem;color:var(--muted);
  background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:8px 16px;
}
.hero-note i{color:var(--primary);font-size:12px}
.hero-card{
  background:var(--surface);border:1px solid var(--border);border-radius:20px;
  padding:22px;box-shadow:var(--shadow-md);
}
.hero-card img{border-radius:var(--radius-img);width:100%;height:230px;object-fit:cover}
.hero-card-body{padding:20px 4px 4px}
.hero-card-body h3{font-size:1.1rem;margin-bottom:14px}
.trust-list li{display:flex;gap:12px;align-items:flex-start;padding:10px 0;border-top:1px dashed var(--border)}
.trust-list li:first-child{border-top:0}
.trust-list i{
  color:var(--primary);background:var(--primary-light);width:28px;height:28px;border-radius:9px;
  display:flex;align-items:center;justify-content:center;font-size:12px;flex:0 0 28px;margin-top:3px;
}
.trust-list strong{display:block;font-size:.95rem;font-weight:700}
.trust-list span{font-size:.85rem;color:var(--muted);line-height:1.7}

/* ---------- 入口服务区 ---------- */
.entry-grid{display:grid;grid-template-columns:1.08fr 1fr;gap:28px}
.entry-main{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
}
.entry-main img{width:100%;height:280px;object-fit:cover}
.entry-main .entry-body{padding:32px}
.entry-side{display:flex;flex-direction:column;gap:28px}
.entry-item{
  background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--accent);
  border-radius:var(--radius-card);padding:26px 28px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease;
}
.entry-item:hover,.entry-main:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.entry-item h3{margin-bottom:10px}
.entry-item p{color:var(--muted);font-size:.96rem}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.tag{
  font-size:.8rem;font-weight:600;color:var(--primary);background:var(--primary-light);
  border-radius:999px;padding:5px 13px;
}
.tag-amber{color:#7a4f07;background:rgba(233,162,59,.18)}
.entry-flow{margin-top:20px;display:flex;flex-wrap:wrap;gap:10px}
.entry-flow span{
  font-size:.85rem;color:var(--muted);background:var(--bg-alt);border-radius:8px;padding:6px 12px;
}

/* ---------- 数据条 ---------- */
.stats-band{
  background:linear-gradient(120deg,var(--primary-dark),var(--primary));
  border-radius:22px;padding:44px 40px;color:#fff;
  display:grid;grid-template-columns:repeat(4,1fr);gap:28px;
}
.stat{padding-right:20px;border-right:1px solid rgba(255,255,255,.2)}
.stat:last-child{border-right:0;padding-right:0}
.stat .num{font-size:clamp(1.9rem,3vw,2.5rem);font-weight:800;line-height:1.1;color:#fff}
.stat .num small{font-size:.9rem;font-weight:600;margin-left:4px;color:rgba(255,255,255,.85)}
.stat p{margin:10px 0 0;font-size:.92rem;color:rgba(255,255,255,.86);line-height:1.75}

/* ---------- 最新信息 ---------- */
.news-card{
  height:100%;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);overflow:hidden;display:flex;flex-direction:column;
  box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.news-thumb{display:block}
.news-thumb img{width:100%;height:196px;object-fit:cover}
.news-body{padding:24px;display:flex;flex-direction:column;flex:1}
.news-meta{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.badge-soft{
  font-size:.78rem;font-weight:700;color:var(--primary);background:var(--primary-light);
  border-radius:999px;padding:5px 12px;
}
.news-date{font-size:.82rem;color:var(--muted)}
.news-body h3{font-size:1.08rem;margin-bottom:12px}
.news-body h3 a{color:var(--text)}
.news-body h3 a:hover{color:var(--primary)}
.news-body .excerpt{color:var(--muted);font-size:.94rem;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-body .btn-link-more{margin-top:auto;font-size:.9rem}
.empty-state{
  background:var(--surface);border:1px dashed var(--border);border-radius:var(--radius-card);
  padding:64px 32px;text-align:center;color:var(--muted);
}
.empty-state i{font-size:30px;color:var(--primary);margin-bottom:14px;display:block}
.empty-state p{margin:0}

/* ---------- 案例（图文交错） ---------- */
.case-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:72px}
.case-row:last-child{margin-bottom:0}
.case-row.reverse .case-media{order:2}
.case-media img{width:100%;height:340px;object-fit:cover;border-radius:var(--radius-img);box-shadow:var(--shadow-sm)}
.case-text h3{font-size:1.45rem;margin-bottom:16px}
.case-text p{color:var(--muted)}
.case-list{margin-top:20px}
.case-list li{display:flex;gap:12px;padding:9px 0;font-size:.96rem;color:var(--text)}
.case-list li i{color:var(--primary);font-size:12px;margin-top:8px}

/* ---------- 方案阶梯 ---------- */
.plan-list{display:flex;flex-direction:column;gap:18px}
.plan-item{
  display:grid;grid-template-columns:88px 1fr auto;gap:26px;align-items:center;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:28px 32px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease;
}
.plan-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.plan-index{
  font-size:1.5rem;font-weight:800;color:var(--primary);background:var(--primary-light);
  width:64px;height:64px;border-radius:18px;display:flex;align-items:center;justify-content:center;
}
.plan-item h3{margin-bottom:8px;font-size:1.14rem}
.plan-item p{color:var(--muted);font-size:.95rem;margin:0}
.plan-item .plan-cta{white-space:nowrap;font-size:.9rem;font-weight:700;color:var(--primary);display:inline-flex;align-items:center;gap:8px}

/* ---------- FAQ ---------- */
.faq-accordion .accordion-item{
  background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--primary);
  border-radius:12px;margin-bottom:14px;overflow:hidden;
}
.faq-accordion .accordion-button{
  background:var(--surface);color:var(--text);font-weight:700;font-size:1.02rem;
  padding:22px 26px;box-shadow:none;border:0;
}
.faq-accordion .accordion-button:not(.collapsed){background:var(--primary-light);color:var(--primary-dark)}
.faq-accordion .accordion-button:hover{background:var(--primary-light)}
.faq-accordion .accordion-button:focus{box-shadow:0 0 0 3px rgba(233,162,59,.4);z-index:3}
.faq-accordion .accordion-button::after{
  background-image:none;content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--primary);width:auto;height:auto;transition:transform .22s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{content:"\f068";transform:none}
.faq-accordion .accordion-body{padding:6px 26px 26px;color:var(--muted);line-height:1.85;font-size:.97rem}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px}
.contact-info h2{margin-bottom:18px}
.contact-info > p{color:var(--muted)}
.contact-blocks{margin-top:28px;display:flex;flex-direction:column;gap:16px}
.contact-block{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:20px 24px;display:flex;gap:16px;align-items:flex-start;
}
.contact-block i{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;background:var(--primary-light);
  color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:14px;
}
.contact-block strong{display:block;font-size:.96rem;margin-bottom:4px}
.contact-block span{font-size:.88rem;color:var(--muted);line-height:1.7}
.contact-form{
  background:var(--surface);border:1px solid var(--border);border-radius:20px;
  padding:36px;box-shadow:var(--shadow-sm);
}
.contact-form h3{margin-bottom:8px}
.contact-form .form-hint{font-size:.88rem;color:var(--muted);margin-bottom:24px}
.form-label{font-size:.9rem;font-weight:700;margin-bottom:8px;color:var(--text)}
.form-control,.form-select{
  border:1px solid var(--border);border-radius:var(--radius-input);padding:12px 16px;
  font-size:.95rem;background:var(--surface);color:var(--text);box-shadow:none;
}
.form-control::placeholder{color:#9AA9A4}
.form-control:focus,.form-select:focus{
  border-color:var(--primary);box-shadow:0 0 0 4px rgba(15,118,110,.12);outline:none;
}
.form-note{font-size:.82rem;color:var(--muted);margin-top:16px}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--footer-bg);border-radius:24px;padding:56px 56px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;margin-bottom:12px}
.cta-band p{color:rgba(234,243,239,.78);margin:0;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);color:var(--footer-text);padding:76px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1.15fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.footer-brand .brand-mark{background:linear-gradient(140deg,var(--primary),var(--primary-light));color:#0B2B26}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:rgba(234,243,239,.6)}
.footer-about{font-size:.9rem;color:rgba(234,243,239,.72);line-height:1.85;max-width:340px}
.site-footer h4{color:#fff;font-size:.95rem;font-weight:700;margin-bottom:20px;letter-spacing:.06em}
.footer-links li{margin-bottom:12px}
.footer-links a{color:rgba(234,243,239,.76);font-size:.92rem}
.footer-links a:hover{color:var(--accent)}
.footer-contact li{display:flex;gap:12px;font-size:.9rem;color:rgba(234,243,239,.76);margin-bottom:14px;line-height:1.7}
.footer-contact i{color:var(--accent);margin-top:5px;font-size:12px}
.footer-bottom{
  margin-top:60px;border-top:1px solid rgba(234,243,239,.14);padding:26px 0;
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:.84rem;color:rgba(234,243,239,.6);
}
.back-top{
  position:fixed;right:26px;bottom:26px;width:48px;height:48px;border-radius:14px;
  background:var(--primary);color:#fff;border:0;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-md);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all .25s ease;z-index:1050;
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{background:var(--primary-dark)}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .hero-inner{grid-template-columns:1fr;gap:44px}
  .hero-card img{height:260px}
  .mega-panel{width:660px;grid-template-columns:1fr 1fr;gap:20px}
  .mega-col.mega-card-col{grid-column:span 2}
}
@media (max-width:991.98px){
  :root{--sec-pad:64px}
  .container{padding-left:20px;padding-right:20px}
  .site-nav{padding:8px 0}
  .navbar-collapse{
    background:var(--surface);border:1px solid var(--border);border-radius:16px;
    margin-top:12px;padding:16px;box-shadow:var(--shadow-sm);
  }
  .main-menu .nav-link{padding:12px 14px}
  .main-menu .nav-link.active::after{display:none}
  .main-menu .nav-link.active{background:var(--primary-light)}
  .nav-tail{flex-direction:column;align-items:stretch;gap:10px;margin-top:12px}
  .mega-wrap{display:block}
  .mega-toggle{width:100%;justify-content:space-between;border:1px dashed var(--border)}
  .mega-panel{
    position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;
    width:auto;padding:8px 4px 0;border:0;grid-template-columns:1fr;gap:18px;
  }
  .mega-col.mega-card-col{grid-column:auto}
  .entry-grid{grid-template-columns:1fr}
  .case-row{grid-template-columns:1fr;gap:28px;margin-bottom:52px}
  .case-row.reverse .case-media{order:0}
  .case-media img{height:260px}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .stats-band{grid-template-columns:repeat(2,1fr);gap:24px;padding:36px 28px}
  .stat{border-right:0;padding-right:0}
  .plan-item{grid-template-columns:64px 1fr;gap:18px;padding:24px}
  .plan-item .plan-cta{grid-column:2;justify-content:flex-start}
  .cta-band{padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:575.98px){
  :root{--sec-pad:48px}
  body{font-size:16px}
  .hero{padding:64px 0 72px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%;text-align:center}
  .entry-main .entry-body{padding:24px}
  .stats-band{grid-template-columns:1fr;padding:32px 24px}
  .footer-grid{grid-template-columns:1fr}
  .contact-form{padding:26px}
  .cta-band{padding:34px 24px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%;text-align:center}
  .brand-sub{display:none}
  .back-top{right:16px;bottom:16px}
}

/* roulang page: article */
:root{
  --c-primary:#0F766E;
  --c-primary-dark:#0B5F5A;
  --c-primary-light:#E6F2EF;
  --c-accent:#E9A23B;
  --c-accent-dark:#D98F2B;
  --c-warn:#C4552F;
  --c-bg:#F7F4EE;
  --c-bg-alt:#EEF4F0;
  --c-surface:#FFFFFF;
  --c-text:#172420;
  --c-text-soft:#5B6B66;
  --c-border:#D9E4DF;
  --c-footer:#10231F;
  --c-footer-text:#EAF3EF;
  --r-card:16px;
  --r-btn:12px;
  --r-input:10px;
  --shadow-soft:0 12px 30px rgba(15,118,110,.08);
  --shadow-hover:0 18px 40px rgba(15,118,110,.14);
  --maxw:1260px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-accent-dark)}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(233,162,59,.55);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
h1,h2,h3,h4{margin:0;color:var(--c-text);letter-spacing:.02em}
h1{font-size:clamp(2rem,1.4rem + 2vw,3.25rem);font-weight:800;line-height:1.25}
h2{font-size:clamp(1.5rem,1.2rem + 1vw,2rem);font-weight:700;line-height:1.35}
h3{font-size:1.25rem;font-weight:700;line-height:1.45}
p{margin:0}
::selection{background:var(--c-primary-light);color:var(--c-primary-dark)}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,244,238,.96);
  border-bottom:1px solid var(--c-border);
  backdrop-filter:saturate(140%) blur(6px);
}
.site-nav{padding:12px 0;background:transparent}
.site-nav .container{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;padding:0}
.brand-mark{
  width:44px;height:44px;flex:0 0 44px;border-radius:14px;
  background:linear-gradient(140deg,var(--c-primary),#149086);
  color:#fff;display:inline-flex;align-items:center;justify-content:center;
  font-size:19px;box-shadow:0 10px 22px rgba(15,118,110,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:19px;font-weight:800;color:var(--c-text);letter-spacing:.01em}
.brand-sub{font-size:12.5px;color:var(--c-text-soft);letter-spacing:.06em}
.brand:hover .brand-name{color:var(--c-primary)}
.navbar-toggler,.nav-toggler{display:none}
.nav-toggler{
  margin-left:auto;width:46px;height:44px;border:1px solid var(--c-border);
  background:var(--c-surface);border-radius:12px;
  display:none;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
}
.toggler-bar{display:block;width:20px;height:2px;border-radius:2px;background:var(--c-primary-dark)}
.main-menu{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.main-menu .nav-link{
  display:block;padding:9px 15px;border-radius:10px;
  color:var(--c-text);font-size:16px;font-weight:600;
  border-bottom:2px solid transparent;transition:.2s ease;
}
.main-menu .nav-link:hover{color:var(--c-primary);background:var(--c-primary-light)}
.main-menu .nav-link.active{color:var(--c-primary);background:var(--c-primary-light);border-bottom-color:var(--c-primary)}
.nav-tail{margin-left:auto;display:flex;align-items:center;gap:10px}
.mega-wrap{position:relative}
.mega-toggle{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:var(--r-btn);border:1px solid var(--c-primary);
  background:var(--c-primary);color:#fff;font-weight:600;font-size:15px;cursor:pointer;
  transition:.2s ease;
}
.mega-toggle i{font-size:12px;transition:transform .25s ease}
.mega-toggle:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);transform:translateY(-1px)}
.mega-wrap.open .mega-toggle i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:800px;
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:0 26px 60px rgba(15,118,110,.16);
  padding:26px;display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(8px);transition:.25s ease;z-index:90;
}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel,.mega-wrap.open .mega-panel{
  opacity:1;visibility:visible;transform:translateY(0);
}
.mega-col h4{font-size:14px;font-weight:700;color:var(--c-primary-dark);letter-spacing:.08em;margin-bottom:12px;text-transform:uppercase}
.mega-col ul{list-style:none;margin:0;padding:0}
.mega-col ul li + li{margin-top:6px}
.mega-col ul a{
  display:flex;align-items:center;gap:8px;padding:7px 10px;border-radius:9px;
  color:var(--c-text-soft);font-size:14.5px;
}
.mega-col ul a i{color:var(--c-primary);font-size:12px}
.mega-col ul a:hover{background:var(--c-primary-light);color:var(--c-primary-dark)}
.mega-card{
  display:block;border:1px solid var(--c-border);border-radius:14px;overflow:hidden;
  background:var(--c-bg-alt);transition:.25s ease;
}
.mega-card img{width:100%;height:104px;object-fit:cover}
.mega-card .mega-card-body{padding:12px 14px}
.mega-card strong{display:block;font-size:15px;color:var(--c-text);margin-bottom:4px}
.mega-card span{font-size:13px;color:var(--c-text-soft);line-height:1.6}
.mega-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-soft);border-color:#c7ddd7}

/* ============ 通用按钮 / 标签 ============ */
.btn-main,.btn-ghost,.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-btn);font-size:16px;font-weight:700;
  border:1px solid transparent;cursor:pointer;transition:.2s ease;text-align:center;
}
.btn-main{background:var(--c-primary);color:#fff;box-shadow:0 12px 26px rgba(15,118,110,.2)}
.btn-main:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-light);color:var(--c-primary-dark)}
.btn-accent{background:var(--c-accent);color:#3a2506}
.btn-accent:hover{background:var(--c-accent-dark);color:#2c1b03;transform:translateY(-1px)}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:999px;
  background:var(--c-primary-light);color:var(--c-primary-dark);
  font-size:13px;font-weight:700;letter-spacing:.04em;
}
.badge-accent{background:rgba(233,162,59,.16);color:var(--c-accent-dark)}

/* ============ 文章标题区 ============ */
.article-hero{
  position:relative;overflow:hidden;
  padding:56px 0 44px;
  background:
    linear-gradient(180deg,rgba(247,244,238,.86),rgba(238,244,240,.94)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom:1px solid var(--c-border);
}
.article-hero::after{
  content:"";position:absolute;right:-120px;top:-90px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(15,118,110,.09),transparent 68%);
  pointer-events:none;
}
.breadcrumb-line{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--c-text-soft);margin-bottom:20px;
}
.breadcrumb-line a{color:var(--c-primary);font-weight:600}
.breadcrumb-line a:hover{color:var(--c-accent-dark)}
.breadcrumb-line .sep{color:#b7c6c1}
.breadcrumb-line .current{color:var(--c-text-soft)}
.article-head{max-width:860px;position:relative;z-index:2}
.article-head h1{margin:16px 0 18px}
.article-meta{
  display:flex;flex-wrap:wrap;gap:10px 22px;
  font-size:14px;color:var(--c-text-soft);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--c-primary)}

/* ============ 正文阅读区 ============ */
.article-section{padding:64px 0 88px}
.article-layout{display:flex;justify-content:center}
.article-body-wrap{width:100%;max-width:820px}
.article-cover{
  margin:0 0 34px;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--c-border);box-shadow:var(--shadow-soft);
}
.article-cover img{width:100%;aspect-ratio:21/9;object-fit:cover}
.article-body{
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  padding:44px 48px;
  box-shadow:var(--shadow-soft);
  font-size:17px;line-height:1.92;color:var(--c-text);
}
.article-body p{margin:0 0 1.1em;color:#22322d}
.article-body h2{
  font-size:clamp(1.35rem,1.15rem + .6vw,1.7rem);
  margin:2em 0 .85em;padding-left:14px;border-left:5px solid var(--c-primary);line-height:1.45;
}
.article-body h3{font-size:1.2rem;margin:1.7em 0 .7em;color:var(--c-primary-dark)}
.article-body h2:first-child,.article-body h3:first-child{margin-top:0}
.article-body ul,.article-body ol{margin:0 0 1.25em;padding-left:1.5em}
.article-body li{margin-bottom:.55em}
.article-body ul li::marker{color:var(--c-primary)}
.article-body ol li::marker{color:var(--c-primary);font-weight:700}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;border-left:4px solid var(--c-primary);
  background:var(--c-primary-light);border-radius:0 12px 12px 0;color:var(--c-text-soft);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:14px;margin:1.5em 0;box-shadow:var(--shadow-soft)}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--c-accent-dark)}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;
  border:1px solid var(--c-border);border-radius:12px;overflow:hidden;
}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--c-border);text-align:left}
.article-body th{background:var(--c-bg-alt);font-weight:700;color:var(--c-primary-dark)}
.article-body strong{color:var(--c-primary-dark)}
.article-body hr{border:0;border-top:1px solid var(--c-border);margin:2em 0}

/* ============ 空态 ============ */
.empty-state{
  background:var(--c-surface);border:1px dashed var(--c-border);border-radius:var(--r-card);
  padding:64px 32px;text-align:center;box-shadow:var(--shadow-soft);
}
.empty-state i{font-size:40px;color:var(--c-primary);opacity:.7}
.empty-state h2{font-size:1.5rem;margin:18px 0 10px}
.empty-state p{color:var(--c-text-soft);max-width:460px;margin:0 auto 24px;font-size:15.5px}

/* ============ 相关推荐 ============ */
.related-section{padding:0 0 88px}
.section-head{max-width:720px;margin-bottom:32px}
.section-head h2{margin-bottom:10px}
.section-head p{color:var(--c-text-soft);font-size:16px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  display:flex;flex-direction:column;background:var(--c-surface);
  border:1px solid var(--c-border);border-radius:var(--r-card);overflow:hidden;
  transition:.25s ease;height:100%;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#c7ddd7}
.rel-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.rel-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:1.12rem;line-height:1.5}
.rel-body p{color:var(--c-text-soft);font-size:14.5px;line-height:1.8;flex:1}
.rel-link{font-weight:700;font-size:14.5px;display:inline-flex;align-items:center;gap:6px}
.rel-link i{font-size:12px;transition:transform .2s ease}
.rel-card:hover .rel-link i{transform:translateX(4px)}
.back-bar{
  margin-top:34px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  padding:20px 24px;border:1px solid var(--c-border);border-radius:var(--r-card);
  background:var(--c-surface);box-shadow:var(--shadow-soft);
}
.back-bar span{color:var(--c-text-soft);font-size:15px}

/* ============ CTA 条 ============ */
.cta-band{
  background:linear-gradient(135deg,var(--c-footer),#143029 70%);
  color:#fff;border-radius:22px;padding:52px 48px;
  display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;left:-80px;bottom:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(233,162,59,.22),transparent 70%);
}
.cta-band h2{color:#fff;margin-bottom:10px;position:relative;z-index:2}
.cta-band p{color:#c9ded7;font-size:16px;max-width:620px;position:relative;z-index:2}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-footer);color:var(--c-footer-text);padding:64px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .brand-mark{background:linear-gradient(140deg,#12897e,#0F766E);box-shadow:none}
.footer-brand .brand-name{color:#fff;font-size:18px;font-weight:800;display:block}
.footer-brand .brand-sub{color:#9fc0b8;font-size:12.5px;display:block}
.footer-about{color:#b9d3cc;font-size:14.5px;line-height:1.9;max-width:360px}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;letter-spacing:.06em}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li+li{margin-top:10px}
.footer-links a{color:#cfe4de;font-size:14.5px}
.footer-links a:hover{color:var(--c-accent)}
.footer-contact{list-style:none;margin:0;padding:0}
.footer-contact li{display:flex;gap:10px;color:#cfe4de;font-size:14.5px;line-height:1.8}
.footer-contact li+li{margin-top:12px}
.footer-contact i{color:var(--c-accent);margin-top:5px;font-size:14px}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(234,243,239,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  color:#9fc0b8;font-size:13.5px;
}
.to-top{
  position:fixed;right:22px;bottom:24px;width:46px;height:46px;border-radius:14px;
  border:1px solid var(--c-border);background:var(--c-surface);color:var(--c-primary-dark);
  display:none;align-items:center;justify-content:center;cursor:pointer;z-index:70;
  box-shadow:var(--shadow-soft);transition:.2s ease;
}
.to-top.show{display:inline-flex}
.to-top:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);transform:translateY(-2px)}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .mega-panel{width:680px}
  .article-body{padding:38px 36px}
}
@media (max-width:991.98px){
  .container{padding:0 20px}
  .nav-toggler{display:flex}
  .navbar-collapse{
    flex-basis:100%;width:100%;margin-top:14px;
    background:var(--c-surface);border:1px solid var(--c-border);
    border-radius:var(--r-card);padding:16px;box-shadow:var(--shadow-soft);
  }
  .main-menu{flex-direction:column;align-items:stretch;gap:2px;margin:0 0 10px}
  .main-menu .nav-link{border-radius:10px;border-bottom:0;padding:11px 14px}
  .main-menu .nav-link.active{background:var(--c-primary-light)}
  .nav-tail{margin-left:0;flex-direction:column;align-items:stretch;width:100%}
  .mega-toggle{width:100%;justify-content:space-between}
  .mega-panel{
    position:static;width:100%;opacity:1;visibility:visible;transform:none;
    display:none;grid-template-columns:1fr;gap:18px;box-shadow:none;margin-top:12px;
  }
  .mega-wrap.open .mega-panel{display:grid}
  .mega-wrap:hover .mega-panel{opacity:1;visibility:visible}
  .article-hero{padding:38px 0 32px}
  .article-section{padding:48px 0 64px}
  .article-body{padding:32px 26px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:30px}
  .cta-band{padding:38px 30px;border-radius:18px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .brand-name{font-size:17px}
  .brand-sub{display:none}
  .article-body{font-size:16px;line-height:1.9}
  .article-cover img{aspect-ratio:16/9}
  .related-grid{grid-template-columns:1fr}
  .article-meta{gap:8px 16px;font-size:13.5px}
}
@media (max-width:575.98px){
  .container{padding:0 16px}
  .article-body{padding:26px 20px;border-radius:14px}
  .article-hero{padding:28px 0 26px}
  .back-bar{padding:18px;flex-direction:column;align-items:flex-start}
  .cta-band{padding:30px 22px}
  .btn-main,.btn-ghost,.btn-accent{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category1 */
:root{
  --primary:#0F766E;
  --primary-dark:#0B5F5A;
  --primary-light:#E6F2EF;
  --accent:#E9A23B;
  --accent-dark:#D98F2B;
  --warn:#C4552F;
  --bg:#F7F4EE;
  --bg-alt:#EEF4F0;
  --surface:#FFFFFF;
  --text:#172420;
  --muted:#5B6B66;
  --border:#D9E4DF;
  --footer-bg:#10231F;
  --footer-text:#EAF3EF;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow-sm:0 12px 30px rgba(15,118,110,.08);
  --shadow-lg:0 18px 40px rgba(15,118,110,.14);
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",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:17px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,border-color .2s ease;}
a:hover{color:var(--accent-dark);}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:3px solid rgba(233,162,59,.55);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4{margin:0 0 .6em;color:var(--text);letter-spacing:.02em;}
h1{font-size:clamp(2rem,4.2vw,3.1rem);font-weight:800;line-height:1.25;}
h2{font-size:clamp(1.5rem,2.6vw,2rem);font-weight:700;line-height:1.35;}
h3{font-size:1.22rem;font-weight:700;line-height:1.5;}
p{margin:0 0 1.1em;}
ul,ol{margin:0 0 1.1em;padding-left:1.15em;}
li{margin-bottom:.45em;}
.container{width:100%;max-width:1260px;margin:0 auto;padding:0 24px;}
.section{padding:100px 0;}
.section-alt{background:var(--bg-alt);}
.section-head{max-width:760px;margin-bottom:52px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--primary-dark);
  background:var(--primary-light);
  border-radius:999px;
  padding:7px 16px;
  margin-bottom:16px;
}
.section-head p{color:var(--muted);font-size:16.5px;margin-bottom:0;}
.lead{font-size:18px;color:var(--muted);}

/* ---------- buttons ---------- */
.btn{font-family:var(--font-cn);font-weight:700;border-radius:var(--radius-btn);border:1px solid transparent;padding:13px 26px;font-size:16px;line-height:1.2;transition:transform .2s ease,background-color .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;}
.btn:focus,.btn:focus-visible{box-shadow:0 0 0 4px rgba(233,162,59,.28);}
.btn-primary,.btn-primary:focus{
  background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:var(--shadow-sm);
}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-1px);}
.btn-outline,.btn-outline:focus{
  background:#fff;border-color:var(--primary);color:var(--primary-dark);box-shadow:none;
}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-dark);border-color:var(--primary);transform:translateY(-1px);}
.btn-accent{background:var(--accent);border-color:var(--accent);color:#231605;}
.btn-accent:hover{background:var(--accent-dark);border-color:var(--accent-dark);color:#231605;transform:translateY(-1px);}
.btn-sm{padding:10px 20px;font-size:15px;}
.link-more{font-weight:700;display:inline-flex;align-items:center;gap:8px;border-bottom:2px solid transparent;}
.link-more:hover{border-bottom-color:var(--accent);color:var(--accent-dark);}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#FDFBF7;
  border-bottom:1px solid var(--border);
}
.site-nav{padding:14px 0;background:transparent;--bs-navbar-padding-y:0;}
.site-nav .container{display:flex;align-items:center;flex-wrap:wrap;gap:16px;}
.brand{display:flex;align-items:center;gap:12px;padding:0;margin:0;text-decoration:none;}
.brand-mark{
  width:44px;height:44px;border-radius:14px;
  background:linear-gradient(140deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:19px;
  box-shadow:0 8px 18px rgba(15,118,110,.22);flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-size:18px;font-weight:800;color:var(--text);letter-spacing:.02em;}
.brand-sub{font-size:12.5px;color:var(--muted);letter-spacing:.04em;}
.nav-toggler{
  margin-left:auto;background:#fff;border:1px solid var(--border);border-radius:12px;
  width:46px;height:44px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggler:hover{background:var(--primary-light);}
.toggler-bar{width:20px;height:2px;background:var(--primary-dark);border-radius:2px;display:block;}
.navbar-collapse{width:100%;}
.main-menu{gap:6px;align-items:center;}
.main-menu .nav-item{list-style:none;}
.main-menu .nav-link{
  color:var(--text);font-weight:600;font-size:16px;padding:10px 16px;border-radius:999px;
  border-bottom:2px solid transparent;transition:all .2s ease;
}
.main-menu .nav-link:hover{background:var(--primary-light);color:var(--primary-dark);}
.main-menu .nav-link.active{color:var(--primary-dark);background:var(--primary-light);font-weight:800;}
.nav-tail{margin-left:auto;display:flex;align-items:center;gap:12px;}
.mega-wrap{position:relative;}
.mega-toggle{
  background:#fff;border:1px solid var(--border);border-radius:999px;color:var(--primary-dark);
  font-weight:700;font-size:15px;padding:10px 20px;display:inline-flex;align-items:center;gap:8px;
  cursor:pointer;transition:all .2s ease;
}
.mega-toggle:hover{background:var(--primary-light);border-color:var(--primary);}
.mega-toggle i{font-size:12px;transition:transform .25s ease;}
.mega-wrap.open .mega-toggle i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 16px);
  width:840px;max-width:calc(100vw - 48px);
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-lg);
  padding:28px;display:grid;grid-template-columns:1fr 1fr 1.1fr;gap:26px;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
  z-index:1050;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel,
.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col h4{font-size:14px;letter-spacing:.1em;color:var(--primary-dark);margin-bottom:14px;}
.mega-col ul{list-style:none;padding:0;margin:0;}
.mega-col ul li{margin-bottom:10px;}
.mega-col ul a{display:flex;align-items:flex-start;gap:9px;color:var(--text);font-size:15px;line-height:1.6;}
.mega-col ul a i{color:var(--accent);margin-top:5px;font-size:12px;}
.mega-col ul a:hover{color:var(--primary-dark);}
.mega-card{background:var(--primary-light);border-radius:14px;padding:20px;}
.mega-card p{font-size:14.5px;color:var(--muted);margin-bottom:14px;line-height:1.7;}

/* ---------- category hero ---------- */
.cat-hero{
  position:relative;
  padding:74px 0 66px;
  background-image:linear-gradient(100deg,rgba(247,244,238,.97) 0%,rgba(247,244,238,.90) 48%,rgba(230,242,239,.78) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--border);
  overflow:hidden;
}
.cat-hero::after{
  content:"";position:absolute;right:-90px;top:-70px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(15,118,110,.09) 0%,rgba(15,118,110,0) 68%);
  pointer-events:none;
}
.crumb{font-size:13.5px;color:var(--muted);display:flex;align-items:center;gap:10px;margin-bottom:20px;flex-wrap:wrap;}
.crumb a{color:var(--primary);font-weight:600;}
.crumb a:hover{color:var(--accent-dark);}
.crumb .sep{color:var(--border);}
.crumb .current{color:var(--muted);}
.hero-brandline{
  display:inline-flex;align-items:center;gap:10px;font-size:14px;font-weight:700;color:var(--primary-dark);
  background:#fff;border:1px solid var(--border);border-radius:999px;padding:8px 18px;margin-bottom:22px;
  box-shadow:var(--shadow-sm);
}
.hero-brandline i{color:var(--accent);}
.cat-hero h1{max-width:16em;margin-bottom:18px;}
.cat-hero .hero-lead{font-size:18.5px;color:var(--muted);max-width:640px;margin-bottom:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:12px;}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--border);border-radius:999px;
  padding:8px 18px;font-size:14.5px;font-weight:600;color:var(--primary-dark);
  transition:all .2s ease;
}
.tag:hover{background:var(--primary-light);border-color:var(--primary);}
.tag i{color:var(--accent);font-size:12px;}

/* ---------- intro ---------- */
.intro-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.intro-copy h2{margin-bottom:20px;}
.intro-copy p{color:var(--muted);}
.intro-list{list-style:none;padding:0;margin:26px 0 0;}
.intro-list li{display:flex;gap:12px;align-items:flex-start;margin-bottom:14px;color:var(--text);font-size:16px;}
.intro-list i{color:var(--primary);margin-top:6px;font-size:14px;}
.intro-media{position:relative;}
.intro-media img{border-radius:14px;box-shadow:var(--shadow-lg);object-fit:cover;aspect-ratio:4/3;width:100%;}
.intro-float{
  position:absolute;left:-22px;bottom:26px;background:#fff;border:1px solid var(--border);
  border-radius:14px;box-shadow:var(--shadow-lg);padding:18px 20px;max-width:250px;
}
.intro-float strong{display:block;font-size:26px;font-weight:800;color:var(--primary-dark);line-height:1.2;}
.intro-float span{font-size:13.5px;color:var(--muted);}

/* ---------- points ---------- */
.points-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:26px;}
.point-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:32px 30px;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease;position:relative;overflow:hidden;
}
.point-card::before{content:"";position:absolute;left:0;top:0;height:100%;width:4px;background:var(--accent);opacity:.9;}
.point-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.point-main{grid-row:span 2;display:flex;flex-direction:column;justify-content:space-between;}
.point-main img{border-radius:14px;object-fit:cover;aspect-ratio:16/9;margin-bottom:24px;}
.point-icon{
  width:50px;height:50px;border-radius:14px;background:var(--primary-light);color:var(--primary-dark);
  display:flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:18px;
}
.point-card h3{margin-bottom:10px;}
.point-card p{color:var(--muted);font-size:15.8px;margin-bottom:0;}
.point-card .link-more{margin-top:16px;font-size:15px;}

/* ---------- steps ---------- */
.steps-flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;}
.steps-flow::before{
  content:"";position:absolute;left:6%;right:6%;top:52px;height:2px;
  background:repeating-linear-gradient(90deg,var(--border) 0 10px,transparent 10px 20px);
}
.step-item{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);padding:30px 24px;box-shadow:var(--shadow-sm);transition:transform .25s ease,box-shadow .25s ease;}
.step-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);}
.step-num{
  width:52px;height:52px;border-radius:999px;background:var(--primary);color:#fff;font-weight:800;font-size:19px;
  display:flex;align-items:center;justify-content:center;margin-bottom:20px;position:relative;z-index:2;
  box-shadow:0 10px 22px rgba(15,118,110,.24);
}
.step-item h3{font-size:1.08rem;margin-bottom:10px;}
.step-item p{font-size:15.4px;color:var(--muted);margin-bottom:0;}
.step-note{margin-top:34px;background:var(--primary-light);border-radius:14px;padding:20px 26px;color:var(--primary-dark);font-size:15.6px;display:flex;gap:14px;align-items:flex-start;}
.step-note i{margin-top:5px;color:var(--primary);}

/* ---------- scenarios ---------- */
.scene-list{display:grid;gap:16px;}
.scene-item{
  display:flex;gap:20px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--border);border-radius:14px;
  padding:24px 28px;border-left:4px solid var(--primary);
  transition:transform .2s ease,box-shadow .2s ease;
}
.scene-item:hover{transform:translateX(4px);box-shadow:var(--shadow-sm);}
.scene-item i{font-size:20px;color:var(--accent);margin-top:6px;}
.scene-item h3{font-size:1.05rem;margin-bottom:6px;}
.scene-item p{margin-bottom:0;color:var(--muted);font-size:15.6px;}

/* ---------- faq ---------- */
.faq-accordion .accordion-item{
  background:var(--surface);border:1px solid var(--border);border-radius:12px;
  margin-bottom:14px;overflow:hidden;border-left:4px solid var(--primary);
}
.faq-accordion .accordion-button{
  background:var(--surface);color:var(--text);font-weight:700;font-size:1.03rem;font-family:var(--font-cn);
  padding:22px 26px;box-shadow:none;display:flex;align-items:center;gap:16px;line-height:1.6;
}
.faq-accordion .accordion-button::after{display:none;}
.faq-accordion .accordion-button:hover{background:var(--primary-light);}
.faq-accordion .accordion-button:not(.collapsed){background:var(--primary-light);color:var(--primary-dark);}
.faq-icon{margin-left:auto;color:var(--primary);transition:transform .3s ease;flex:0 0 auto;font-size:15px;}
.faq-accordion .accordion-button:not(.collapsed) .faq-icon{transform:rotate(45deg);}
.faq-accordion .accordion-body{padding:4px 26px 26px;color:var(--muted);font-size:16px;line-height:1.9;}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--footer-bg);border-radius:20px;padding:56px 52px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(233,162,59,.22) 0%,rgba(233,162,59,0) 70%);
}
.cta-band h2{color:#fff;margin-bottom:10px;font-size:clamp(1.45rem,2.4vw,1.9rem);}
.cta-band p{color:rgba(234,243,239,.82);margin-bottom:0;max-width:620px;font-size:16px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2;}

/* ---------- footer ---------- */
.site-footer{background:var(--footer-bg);color:var(--footer-text);padding:74px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:20px;}
.footer-brand .brand-name{color:#fff;font-size:17px;}
.footer-brand .brand-sub{color:rgba(234,243,239,.62);}
.footer-brand .brand-mark{background:linear-gradient(140deg,var(--accent) 0%,var(--accent-dark) 100%);box-shadow:none;color:#1c1204;}
.footer-about{color:rgba(234,243,239,.74);font-size:15px;line-height:1.85;margin-bottom:0;max-width:360px;}
.site-footer h4{color:#fff;font-size:15px;letter-spacing:.08em;margin-bottom:20px;}
.footer-links,.footer-contact{list-style:none;padding:0;margin:0;}
.footer-links li{margin-bottom:12px;}
.footer-links a{color:rgba(234,243,239,.78);font-size:15px;}
.footer-links a:hover{color:var(--accent);}
.footer-contact li{display:flex;gap:12px;align-items:flex-start;margin-bottom:14px;color:rgba(234,243,239,.78);font-size:14.6px;line-height:1.7;}
.footer-contact i{color:var(--accent);margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid rgba(234,243,239,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:rgba(234,243,239,.58);font-size:13.6px;
}
.back-top{
  position:fixed;right:24px;bottom:26px;width:48px;height:48px;border-radius:14px;
  background:var(--primary);color:#fff;border:none;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-lg);cursor:pointer;opacity:0;visibility:hidden;transition:all .25s ease;z-index:1040;
}
.back-top.show{opacity:1;visibility:visible;}
.back-top:hover{background:var(--primary-dark);transform:translateY(-2px);}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .mega-panel{width:760px;}
}
@media (max-width:991.98px){
  .section{padding:64px 0;}
  .site-nav .container{gap:12px;}
  .nav-toggler{display:flex;}
  .navbar-collapse{
    margin-top:14px;background:#fff;border:1px solid var(--border);border-radius:16px;
    padding:16px;box-shadow:var(--shadow-sm);
  }
  .main-menu{flex-direction:column;align-items:stretch;gap:4px;width:100%;}
  .main-menu .nav-link{padding:13px 16px;border-radius:12px;}
  .nav-tail{margin:14px 0 0;width:100%;}
  .mega-wrap{width:100%;}
  .mega-toggle{width:100%;justify-content:space-between;}
  .mega-panel{
    position:static;width:100%;max-width:none;opacity:1;visibility:visible;transform:none;
    display:none;box-shadow:none;border:none;background:var(--primary-light);
    margin-top:10px;padding:18px;grid-template-columns:1fr;gap:18px;
  }
  .mega-wrap.open .mega-panel{display:grid;}
  .mega-card{background:#fff;}
  .intro-grid{grid-template-columns:1fr;gap:36px;}
  .intro-float{position:static;margin-top:18px;max-width:none;}
  .points-grid{grid-template-columns:1fr;}
  .point-main{grid-row:auto;}
  .steps-flow{grid-template-columns:repeat(2,1fr);}
  .steps-flow::before{display:none;}
  .cta-band{padding:42px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:575.98px){
  body{font-size:16.4px;}
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .brand-sub{display:none;}
  .brand-name{font-size:16.5px;}
  .cat-hero{padding:52px 0 46px;}
  .cat-hero .hero-lead{font-size:16.6px;}
  .steps-flow{grid-template-columns:1fr;}
  .point-card{padding:26px 22px;}
  .scene-item{flex-direction:column;gap:10px;padding:22px;}
  .faq-accordion .accordion-button{padding:18px 20px;font-size:.98rem;}
  .faq-accordion .accordion-body{padding:2px 20px 22px;}
  .cta-band{padding:34px 24px;border-radius:16px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;text-align:center;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .back-top{right:16px;bottom:18px;}
}

/* roulang page: category2 */
:root{
  --primary:#0F766E;
  --primary-deep:#0B5F5A;
  --primary-soft:#E6F2EF;
  --accent:#E9A23B;
  --accent-deep:#D98F2B;
  --warn:#C4552F;
  --bg:#F7F4EE;
  --bg-alt:#EEF4F0;
  --surface:#FFFFFF;
  --ink:#172420;
  --muted:#5B6B66;
  --border:#D9E4DF;
  --footer-bg:#10231F;
  --footer-ink:#EAF3EF;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow-sm:0 12px 30px rgba(15,118,110,.08);
  --shadow-md:0 18px 40px rgba(15,118,110,.14);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .25s ease,background-color .25s ease}
a:hover{color:var(--accent-deep)}
h1,h2,h3,h4{color:var(--ink);margin:0 0 .6em;letter-spacing:.02em}
h1{font-size:clamp(2rem,4vw,3rem);font-weight:800;line-height:1.25}
h2{font-size:clamp(1.5rem,2.6vw,2rem);font-weight:700;line-height:1.35}
h3{font-size:1.25rem;font-weight:700;line-height:1.45}
p{margin:0 0 1.1em}
ul,ol{margin:0 0 1.1em;padding-left:1.15em}
li{margin-bottom:.5em}
:focus-visible{outline:3px solid rgba(233,162,59,.55);outline-offset:2px}
.container{max-width:1320px;padding-left:24px;padding-right:24px}
.section{padding:96px 0}
.section--alt{background:var(--bg-alt)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:none;
  color:var(--primary);background:var(--primary-soft);
  border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.eyebrow i{font-size:12px}
.section-head{max-width:760px;margin-bottom:44px}
.section-head p{color:var(--muted);margin-bottom:0}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--border);
  backdrop-filter:saturate(140%) blur(6px);
}
.site-nav{padding:12px 0}
.brand{display:flex;align-items:center;gap:12px;padding:0}
.brand-mark{
  width:44px;height:44px;border-radius:14px;
  background:linear-gradient(140deg,var(--primary),var(--primary-deep));
  color:#fff;display:grid;place-items:center;font-size:19px;flex:0 0 auto;
  box-shadow:0 8px 18px rgba(15,118,110,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-name{font-size:18px;font-weight:800;color:var(--ink);letter-spacing:.02em}
.brand-sub{font-size:12px;color:var(--muted);font-weight:500}
.main-menu{gap:4px}
.main-menu .nav-link{
  color:var(--ink);font-weight:600;font-size:16px;
  padding:9px 14px;border-radius:10px;position:relative;
}
.main-menu .nav-link:hover{background:var(--primary-soft);color:var(--primary-deep)}
.main-menu .nav-link.active{color:var(--primary)}
.main-menu .nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:3px;
  background:var(--accent);
}
.nav-toggler{
  border:1px solid var(--border);border-radius:12px;background:#fff;
  width:46px;height:42px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;
}
.nav-toggler .toggler-bar{width:20px;height:2px;background:var(--primary-deep);border-radius:2px}
.nav-toggler:focus{box-shadow:0 0 0 3px rgba(233,162,59,.4)}
.nav-tail{display:flex;align-items:center;gap:12px}
.mega-wrap{position:relative}
.mega-toggle{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--primary);color:#fff;border:none;
  font-size:15px;font-weight:600;padding:11px 18px;border-radius:var(--radius-btn);
  transition:transform .2s ease,background-color .2s ease;
}
.mega-toggle:hover{background:var(--primary-deep);transform:translateY(-1px)}
.mega-toggle i{font-size:12px;transition:transform .25s ease}
.mega-wrap.open .mega-toggle i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:800px;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-md);padding:26px;
  display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
}
.mega-wrap:hover .mega-panel,.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{font-size:14px;font-weight:700;color:var(--primary-deep);margin-bottom:12px;letter-spacing:.06em}
.mega-col ul{list-style:none;padding:0;margin:0}
.mega-col li{margin-bottom:6px}
.mega-col a{
  display:flex;align-items:center;gap:8px;font-size:15px;color:var(--ink);
  padding:8px 10px;border-radius:10px;
}
.mega-col a:hover{background:var(--primary-soft);color:var(--primary-deep)}
.mega-col a i{font-size:12px;color:var(--primary)}
.mega-card{
  display:block;border:1px solid var(--border);border-radius:14px;overflow:hidden;background:var(--bg-alt);
}
.mega-card img{height:118px;width:100%;object-fit:cover}
.mega-card-body{padding:14px 16px 16px}
.mega-card-body strong{display:block;font-size:15px;color:var(--ink);margin-bottom:6px}
.mega-card-body span{font-size:13px;color:var(--muted);line-height:1.6;display:block}

/* ---------- 内页 Hero ---------- */
.page-hero{
  position:relative;padding:64px 0 58px;
  background:linear-gradient(120deg,rgba(247,244,238,.94),rgba(230,242,239,.88)),
             url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom:1px solid var(--border);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(circle at 84% 20%,rgba(15,118,110,.10),transparent 42%);
}
.page-hero .container{position:relative;z-index:2}
.crumb{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:0;margin:0 0 18px;font-size:13.5px;color:var(--muted)}
.crumb li{margin:0}
.crumb a{color:var(--primary);font-weight:600}
.crumb a:hover{color:var(--accent-deep)}
.crumb .sep{color:#A9BAB4}
.crumb .current{color:var(--muted)}
.page-hero h1{margin-bottom:16px}
.page-hero .hero-lead{max-width:760px;font-size:18px;color:#33443F;margin-bottom:22px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;list-style:none;padding:0;margin:0}
.hero-tags li{
  margin:0;font-size:13.5px;font-weight:600;color:var(--primary-deep);
  background:#fff;border:1px solid var(--border);border-radius:999px;padding:7px 15px;
  box-shadow:0 6px 16px rgba(15,118,110,.06);
}

/* ---------- 分类页布局 ---------- */
.cat-wrap{padding:72px 0 96px}
.cat-layout{display:grid;grid-template-columns:minmax(0,320px) minmax(0,1fr);gap:44px;align-items:start}
.toc-card{
  position:sticky;top:104px;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:24px 22px;box-shadow:var(--shadow-sm);
}
.toc-card h2{font-size:15px;letter-spacing:.06em;color:var(--primary-deep);margin-bottom:14px}
.toc-list{list-style:none;padding:0;margin:0 0 18px}
.toc-list li{margin-bottom:4px}
.toc-list a{
  display:flex;align-items:center;gap:10px;font-size:15px;color:var(--muted);
  padding:9px 12px;border-radius:10px;font-weight:500;
}
.toc-list a::before{content:"";width:6px;height:6px;border-radius:50%;background:#C6D8D2;flex:0 0 auto;transition:background-color .2s ease}
.toc-list a:hover{background:var(--primary-soft);color:var(--primary-deep)}
.toc-list a.active{background:var(--primary-soft);color:var(--primary-deep);font-weight:700}
.toc-list a.active::before{background:var(--accent)}
.toc-note{border-top:1px dashed var(--border);padding-top:16px}
.toc-note p{font-size:13.5px;color:var(--muted);margin-bottom:14px;line-height:1.7}

/* ---------- 内容块 ---------- */
.content-block{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:34px 34px 30px;margin-bottom:28px;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease;
}
.content-block:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.content-block--accent{border-left:4px solid var(--accent)}
.content-block--green{border-top:3px solid var(--primary)}
.content-block h2{margin-bottom:14px}
.content-block h3{margin-top:26px;margin-bottom:10px}
.block-lead{color:#33443F;font-size:17px}
.muted{color:var(--muted);font-size:15px}
.cover-figure{margin:26px 0 6px;border-radius:14px;overflow:hidden;border:1px solid var(--border)}
.cover-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.cover-figure figcaption{font-size:13px;color:var(--muted);padding:12px 16px;background:var(--bg-alt)}

.data-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:26px 0 6px}
.data-item{background:var(--bg-alt);border-radius:14px;padding:20px 18px;border:1px solid transparent}
.data-item .data-num{font-size:2.1rem;font-weight:800;color:var(--primary);line-height:1.15;letter-spacing:.01em}
.data-item .data-label{font-size:14px;color:var(--muted);margin-top:6px;line-height:1.7}

.check-list{list-style:none;padding:0;margin:0}
.check-list li{display:flex;gap:12px;align-items:flex-start;margin-bottom:12px;font-size:16px}
.check-list li i{color:var(--primary);margin-top:6px;font-size:14px}
.check-list--two{display:grid;grid-template-columns:1fr 1fr;gap:6px 28px}

.spec-list{border:1px solid var(--border);border-radius:14px;overflow:hidden;margin:22px 0 8px}
.spec-row{display:grid;grid-template-columns:180px 1fr;gap:18px;padding:16px 20px;background:#fff}
.spec-row:nth-child(even){background:var(--bg-alt)}
.spec-row dt{font-weight:700;color:var(--primary-deep);font-size:15px}
.spec-row dd{margin:0;color:#33443F;font-size:15.5px}

.step-list{list-style:none;padding:0;margin:22px 0 6px;counter-reset:step}
.step-list li{
  position:relative;padding-left:56px;margin-bottom:22px;counter-increment:step;
}
.step-list li::before{
  content:counter(step);position:absolute;left:0;top:2px;
  width:38px;height:38px;border-radius:12px;
  background:var(--primary-soft);color:var(--primary-deep);
  display:grid;place-items:center;font-weight:800;font-size:16px;
}
.step-list li strong{display:block;font-size:17px;margin-bottom:4px}
.step-list li p{margin-bottom:0;color:var(--muted);font-size:15.5px}

.note-box{
  background:var(--primary-soft);border-radius:14px;padding:18px 20px;
  border-left:4px solid var(--primary);margin:22px 0 6px;
}
.note-box p{margin:0;font-size:15.5px;color:#22423C}
.note-box i{color:var(--primary-deep);margin-right:8px}

.tag-row{display:flex;flex-wrap:wrap;gap:10px;list-style:none;padding:0;margin:18px 0 4px}
.tag-row li{
  margin:0;font-size:13px;font-weight:600;color:var(--primary-deep);
  background:var(--primary-soft);border-radius:999px;padding:6px 14px;
}

.btn-brand{
  display:inline-flex;align-items:center;gap:9px;
  background:var(--primary);color:#fff;border:1px solid var(--primary);
  font-size:16px;font-weight:600;padding:12px 24px;border-radius:var(--radius-btn);
  transition:background-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-brand:hover{background:var(--primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.btn-brand:focus-visible{outline:3px solid rgba(233,162,59,.55);outline-offset:2px}
.btn-outline-brand{
  display:inline-flex;align-items:center;gap:9px;
  background:#fff;color:var(--primary);border:1px solid var(--primary);
  font-size:16px;font-weight:600;padding:12px 24px;border-radius:var(--radius-btn);
  transition:background-color .22s ease,color .22s ease,transform .22s ease;
}
.btn-outline-brand:hover{background:var(--primary-soft);color:var(--primary-deep);transform:translateY(-1px)}
.btn-accent{
  display:inline-flex;align-items:center;gap:9px;
  background:var(--accent);color:#2A1B02;border:1px solid var(--accent);
  font-size:16px;font-weight:700;padding:12px 24px;border-radius:var(--radius-btn);
  transition:background-color .22s ease,transform .22s ease;
}
.btn-accent:hover{background:var(--accent-deep);color:#2A1B02;transform:translateY(-1px)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--primary);
  border-bottom:2px solid transparent;padding-bottom:2px;
}
.btn-ghost:hover{color:var(--accent-deep);border-bottom-color:var(--accent)}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:22px}

/* ---------- FAQ ---------- */
.faq-accordion .accordion-item{
  background:#fff;border:1px solid var(--border);border-left:4px solid var(--primary);
  border-radius:12px;margin-bottom:14px;overflow:hidden;
}
.faq-accordion .accordion-button{
  background:#fff;color:var(--ink);font-size:17px;font-weight:700;
  padding:18px 22px;box-shadow:none;border:none;
}
.faq-accordion .accordion-button:hover{background:var(--primary-soft)}
.faq-accordion .accordion-button:not(.collapsed){background:var(--primary-soft);color:var(--primary-deep)}
.faq-accordion .accordion-button:focus{box-shadow:0 0 0 3px rgba(233,162,59,.4);border-color:transparent}
.faq-accordion .accordion-button::after{
  content:"+";background-image:none;width:28px;height:28px;border-radius:50%;
  background-color:var(--primary-soft);color:var(--primary-deep);
  display:grid;place-items:center;font-size:18px;font-weight:700;line-height:1;
  transition:transform .25s ease,background-color .25s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  content:"−";background-color:var(--accent);color:#fff;transform:rotate(180deg);
}
.faq-accordion .accordion-body{padding:4px 22px 20px;color:#33443F;font-size:16px;line-height:1.85}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--footer-bg);color:var(--footer-ink);border-radius:20px;
  padding:42px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  margin-top:34px;
}
.cta-band h2{color:#fff;margin-bottom:8px}
.cta-band p{color:#B9CFC7;margin:0;max-width:620px}
.cta-band .btn-row{margin-top:0;flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);color:var(--footer-ink);padding:68px 0 26px;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:38px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-text{display:flex;flex-direction:column;line-height:1.25}
.footer-brand .brand-name{color:#fff;font-size:18px;font-weight:800}
.footer-brand .brand-sub{color:#9FB8B0;font-size:12px}
.footer-about{color:#B9CFC7;font-size:14.5px;line-height:1.85;max-width:380px}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;letter-spacing:.04em}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:10px}
.footer-links a{color:#B9CFC7;font-size:14.5px}
.footer-links a:hover{color:var(--accent)}
.footer-contact{list-style:none;padding:0;margin:0}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;color:#B9CFC7;font-size:14.5px;margin-bottom:12px}
.footer-contact i{color:var(--accent);margin-top:6px;font-size:13px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.14);margin-top:38px;padding-top:20px;
  font-size:13px;color:#9FB8B0;
}
.to-top{
  position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:14px;
  background:#fff;color:var(--primary-deep);border:1px solid var(--border);
  display:grid;place-items:center;box-shadow:var(--shadow-sm);z-index:1040;
  opacity:0;visibility:hidden;transition:opacity .25s ease,transform .25s ease,visibility .25s;
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{transform:translateY(-3px);color:var(--accent-deep)}

/* ---------- 响应式 ---------- */
@media (max-width:1399px){
  .mega-panel{width:720px}
}
@media (max-width:1199px){
  .cat-layout{grid-template-columns:minmax(0,280px) minmax(0,1fr);gap:32px}
  .mega-panel{width:640px;grid-template-columns:1fr 1fr}
  .mega-panel .mega-col--card{grid-column:1 / -1}
}
@media (max-width:991px){
  .section{padding:64px 0}
  .cat-wrap{padding:48px 0 72px}
  .cat-layout{grid-template-columns:1fr;gap:28px}
  .toc-card{position:static}
  .toc-list{display:grid;grid-template-columns:1fr 1fr;gap:4px 10px}
  .page-hero{padding:46px 0 40px}
  .site-nav{padding:10px 0}
  .navbar-collapse{
    background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
    padding:16px;margin-top:12px;box-shadow:var(--shadow-sm);
  }
  .main-menu{margin:0 0 14px}
  .main-menu .nav-link{padding:11px 12px}
  .main-menu .nav-link.active::after{display:none}
  .main-menu .nav-link.active{background:var(--primary-soft)}
  .nav-tail{flex-direction:column;align-items:stretch}
  .mega-toggle{justify-content:center;width:100%}
  .mega-panel{
    position:static;width:auto;opacity:1;visibility:visible;transform:none;
    box-shadow:none;border-radius:14px;margin-top:12px;padding:18px;
    grid-template-columns:1fr;
  }
  .mega-wrap:not(.open) .mega-panel{display:none}
  .data-strip{grid-template-columns:1fr 1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  body{font-size:16px}
  .content-block{padding:26px 22px 24px}
  .check-list--two{grid-template-columns:1fr}
  .spec-row{grid-template-columns:1fr;gap:6px}
  .page-hero .hero-lead{font-size:16.5px}
}
@media (max-width:575px){
  .container{padding-left:16px;padding-right:16px}
  .brand-name{font-size:16px}
  .brand-sub{font-size:11.5px}
  .section{padding:48px 0}
  .toc-list{grid-template-columns:1fr}
  .data-strip{grid-template-columns:1fr}
  .btn-brand,.btn-outline-brand,.btn-accent{width:100%;justify-content:center}
  .footer-grid{grid-template-columns:1fr}
  .step-list li{padding-left:48px}
}

/* roulang page: category3 */
:root{
  --brand:#0F766E;
  --brand-deep:#0B5F5A;
  --brand-soft:#E6F2EF;
  --accent:#E9A23B;
  --accent-deep:#D98F2B;
  --warn:#C4552F;
  --bg:#F7F4EE;
  --bg-alt:#EEF4F0;
  --surface:#FFFFFF;
  --text:#172420;
  --text-2:#5B6B66;
  --border:#D9E4DF;
  --footer-bg:#10231F;
  --footer-text:#EAF3EF;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow-sm:0 12px 30px rgba(15,118,110,.08);
  --shadow-lg:0 18px 40px rgba(15,118,110,.14);
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:var(--accent-deep)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:3px solid rgba(233,162,59,.55);
  outline-offset:2px;
}
h1,h2,h3,h4{color:var(--text);margin:0 0 .6em;letter-spacing:.02em}
h1{font-size:clamp(2rem,4.6vw,3.1rem);font-weight:800;line-height:1.25}
h2{font-size:clamp(1.5rem,2.8vw,2rem);font-weight:700;line-height:1.35}
h3{font-size:1.25rem;font-weight:700;line-height:1.5}
p{margin:0 0 1.1em}
ul,ol{margin:0 0 1.1em;padding-left:1.15em}
li{margin-bottom:.45em}
.container{max-width:1280px;padding-left:24px;padding-right:24px}
.section{padding:96px 0}
.section-alt{background:var(--bg-alt)}
.section-tight{padding:64px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--brand);background:var(--brand-soft);
  border-radius:999px;padding:6px 16px;margin-bottom:18px;
}
.section-head{max-width:780px;margin-bottom:44px}
.section-head p{color:var(--text-2);font-size:17px;margin-bottom:0}
.text-muted-2{color:var(--text-2)}
.lead{font-size:18px;color:var(--text-2)}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,244,238,.96);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid var(--border);
}
.site-nav{padding:12px 0;background:transparent}
.site-nav .container{display:flex;align-items:center;gap:16px;flex-wrap:nowrap}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;padding:0;margin-right:8px}
.brand-mark{
  width:44px;height:44px;flex:0 0 44px;border-radius:14px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand),var(--brand-deep));
  color:#fff;font-size:19px;
  box-shadow:0 10px 22px rgba(15,118,110,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:18px;font-weight:800;color:var(--text);letter-spacing:.01em}
.brand-sub{font-size:12px;color:var(--text-2);letter-spacing:.06em}
.main-menu{gap:4px}
.main-menu .nav-link{
  color:var(--text);font-weight:600;font-size:16px;
  padding:10px 16px;border-radius:12px;position:relative;
  transition:background .22s ease,color .22s ease;
}
.main-menu .nav-link:hover{background:var(--brand-soft);color:var(--brand-deep)}
.main-menu .nav-link.active{color:var(--brand-deep);background:var(--brand-soft)}
.main-menu .nav-link.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:4px;height:3px;
  border-radius:999px;background:var(--brand);
}
.nav-tail{display:flex;align-items:center;gap:12px}
.mega-wrap{position:relative}
.mega-toggle{
  border:1px solid var(--border);background:var(--surface);color:var(--text);
  font-weight:600;font-size:15px;padding:10px 18px;border-radius:var(--radius-btn);
  display:inline-flex;align-items:center;gap:8px;cursor:pointer;
  transition:border-color .22s ease,color .22s ease,box-shadow .22s ease,transform .22s ease;
}
.mega-toggle:hover{border-color:var(--brand);color:var(--brand-deep);box-shadow:var(--shadow-sm);transform:translateY(-1px)}
.mega-toggle i{font-size:12px;transition:transform .25s ease}
.mega-toggle[aria-expanded="true"] i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:760px;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:0 18px 44px rgba(16,35,31,.14);
  padding:26px;display:grid;grid-template-columns:1.1fr 1.1fr 1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s ease;
}
.mega-wrap:hover .mega-panel,
.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{font-size:14px;color:var(--text-2);letter-spacing:.1em;margin-bottom:14px;font-weight:700}
.mega-col ul{list-style:none;margin:0;padding:0}
.mega-col li{margin-bottom:6px}
.mega-col a{
  display:flex;align-items:flex-start;gap:9px;font-size:15px;color:var(--text);
  padding:8px 10px;border-radius:10px;line-height:1.5;
  transition:background .2s ease,color .2s ease;
}
.mega-col a:hover{background:var(--brand-soft);color:var(--brand-deep)}
.mega-col a i{color:var(--brand);font-size:13px;margin-top:6px}
.mega-card{
  background:linear-gradient(150deg,var(--brand-deep),var(--brand));
  border-radius:14px;padding:20px;color:#fff;display:flex;flex-direction:column;justify-content:space-between;gap:12px;
}
.mega-card h5{font-size:16px;font-weight:700;margin:0;color:#fff}
.mega-card p{font-size:13px;line-height:1.7;margin:0;color:rgba(255,255,255,.86)}
.mega-card .btn-mini{
  align-self:flex-start;background:var(--accent);color:#3a2607;border:none;
  font-weight:700;font-size:13px;padding:8px 16px;border-radius:999px;
}
.mega-card .btn-mini:hover{background:#f2b455;color:#2c1c04}
.nav-toggler{
  display:none;border:1px solid var(--border);background:var(--surface);
  width:46px;height:42px;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;
}
.toggler-bar{width:20px;height:2px;background:var(--text);border-radius:2px}

/* ============ Buttons ============ */
.btn{transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease}
.btn-brand{
  background:var(--brand);color:#fff;border:1px solid var(--brand);
  border-radius:var(--radius-btn);font-weight:700;padding:13px 28px;font-size:16px;
  box-shadow:0 10px 24px rgba(15,118,110,.20);
}
.btn-brand:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:0 16px 32px rgba(15,118,110,.28)}
.btn-outline-brand{
  background:var(--surface);color:var(--brand-deep);border:1px solid var(--brand);
  border-radius:var(--radius-btn);font-weight:700;padding:13px 28px;font-size:16px;
}
.btn-outline-brand:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-1px)}
.btn-accent{
  background:var(--accent);color:#3a2607;border:1px solid var(--accent);
  border-radius:var(--radius-btn);font-weight:700;padding:13px 28px;font-size:16px;
}
.btn-accent:hover{background:var(--accent-deep);border-color:var(--accent-deep);color:#2c1c04;transform:translateY(-1px)}
.btn-link-brand{color:var(--brand);font-weight:700;text-decoration:underline;text-underline-offset:4px;padding:0}
.btn-link-brand:hover{color:var(--accent-deep)}

/* ============ Hero ============ */
.cat-hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(100deg,rgba(247,244,238,.96) 0%,rgba(247,244,238,.86) 46%,rgba(230,242,239,.58) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  padding:64px 0 72px;
  border-bottom:1px solid var(--border);
}
.cat-hero::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(15,118,110,.10),rgba(15,118,110,0) 70%);
}
.cat-hero .container{position:relative;z-index:2}
.breadcrumb-nav{font-size:13px;color:var(--text-2);margin-bottom:18px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.breadcrumb-nav a{color:var(--brand);font-weight:600}
.breadcrumb-nav .sep{color:#AFC2BC}
.cat-hero h1{margin-bottom:16px}
.cat-hero .hero-desc{max-width:760px;font-size:17px;color:var(--text-2);margin-bottom:26px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.badge-soft{
  display:inline-flex;align-items:center;gap:7px;
  background:var(--brand-soft);color:var(--brand-deep);
  font-size:13px;font-weight:700;padding:7px 15px;border-radius:999px;
}
.badge-soft i{font-size:12px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ Cards wall ============ */
.wall{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;align-items:start}
.q-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:28px 28px 26px;box-shadow:var(--shadow-sm);
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
  position:relative;overflow:hidden;
}
.q-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--accent);opacity:.85;
}
.q-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#C6DCD5}
.q-card .q-tag{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;
  color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:5px 12px;margin-bottom:14px;
}
.q-card h3{font-size:1.16rem;margin-bottom:10px}
.q-card p{color:var(--text-2);font-size:15.5px;margin-bottom:14px}
.q-card ul{font-size:15.5px;color:var(--text-2);padding-left:1.05em;margin-bottom:0}
.q-card ul li::marker{color:var(--brand)}
.q-card-wide{grid-column:1 / -1}
.q-card-wide .wide-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:center}
.q-card-wide img{border-radius:14px;height:210px;width:100%;object-fit:cover}
.q-card-accent::before{background:var(--brand)}

/* ============ Table ============ */
.table-shell{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);overflow:hidden;
}
.table-wrap{overflow-x:auto}
table.check-table{width:100%;border-collapse:collapse;min-width:760px}
table.check-table thead th{
  background:var(--brand-soft);color:var(--brand-deep);
  font-size:14px;font-weight:700;letter-spacing:.06em;
  padding:18px 22px;text-align:left;border-bottom:1px solid var(--border);white-space:nowrap;
}
table.check-table tbody td{
  padding:20px 22px;border-bottom:1px solid var(--border);
  font-size:15.5px;color:var(--text-2);vertical-align:top;
}
table.check-table tbody tr:last-child td{border-bottom:none}
table.check-table tbody tr:hover{background:#FBFDFC}
table.check-table td:first-child{color:var(--text);font-weight:700}
.pill{
  display:inline-block;font-size:12.5px;font-weight:700;padding:4px 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-deep);white-space:nowrap;
}
.pill-warn{background:#FBEBE4;color:var(--warn)}

/* ============ Timeline ============ */
.timeline-layout{display:grid;grid-template-columns:.92fr 1.08fr;gap:52px;align-items:start}
.timeline-media img{border-radius:14px;width:100%;height:100%;min-height:380px;object-fit:cover;box-shadow:var(--shadow-sm)}
.timeline-media .media-note{
  margin-top:18px;background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--brand);
  border-radius:12px;padding:16px 18px;font-size:14.5px;color:var(--text-2);
}
.timeline{position:relative;padding-left:34px}
.timeline::before{content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--brand),rgba(15,118,110,.12))}
.tl-item{position:relative;margin-bottom:30px}
.tl-item:last-child{margin-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-33px;top:8px;width:18px;height:18px;border-radius:50%;
  background:var(--surface);border:3px solid var(--brand);
}
.tl-item h3{font-size:1.08rem;margin-bottom:8px}
.tl-item p{color:var(--text-2);font-size:15.5px;margin-bottom:8px}
.tl-item ul{color:var(--text-2);font-size:15px;margin-bottom:0}

/* ============ FAQ ============ */
.accordion-brand .accordion-item{
  background:var(--surface);border:1px solid var(--border);border-radius:12px;
  border-left:4px solid var(--brand);margin-bottom:14px;overflow:hidden;
  transition:background .22s ease,box-shadow .22s ease;
}
.accordion-brand .accordion-item:hover{background:#FBFDFC;box-shadow:var(--shadow-sm)}
.accordion-brand .accordion-button{
  background:transparent;color:var(--text);font-weight:700;font-size:1.06rem;
  padding:20px 24px;box-shadow:none;line-height:1.6;
}
.accordion-brand .accordion-button:not(.collapsed){color:var(--brand-deep);background:var(--brand-soft)}
.accordion-brand .accordion-button:focus{box-shadow:0 0 0 3px rgba(233,162,59,.4);border-color:transparent}
.accordion-brand .accordion-button::after{
  background-image:none;content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:14px;color:var(--brand);width:auto;height:auto;transform:none;
  transition:transform .25s ease,color .25s ease;
}
.accordion-brand .accordion-button:not(.collapsed)::after{content:"\f068";transform:rotate(180deg);color:var(--brand-deep)}
.accordion-brand .accordion-body{padding:18px 24px 24px;color:var(--text-2);font-size:16px;line-height:1.85}

/* ============ Contact / CTA ============ */
.contact-band{
  background:var(--footer-bg);color:var(--footer-text);
  border-radius:22px;padding:56px;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;
}
.contact-band h2{color:#fff}
.contact-band p{color:rgba(234,243,239,.78)}
.contact-list{list-style:none;padding:0;margin:24px 0 0}
.contact-list li{display:flex;gap:12px;align-items:flex-start;margin-bottom:14px;font-size:15.5px;color:rgba(234,243,239,.86)}
.contact-list i{color:var(--accent);margin-top:6px;font-size:14px}
.form-card{background:rgba(255,255,255,.06);border:1px solid rgba(234,243,239,.18);border-radius:16px;padding:28px}
.form-card label{font-size:14px;font-weight:700;color:#fff;margin-bottom:8px;display:block}
.form-card .form-control{
  background:rgba(255,255,255,.96);border:1px solid rgba(217,228,223,.9);
  border-radius:var(--radius-input);padding:12px 14px;font-size:15px;color:var(--text);
}
.form-card .form-control:focus{background:#fff;border-color:var(--brand);box-shadow:0 0 0 4px rgba(15,118,110,.18)}
.form-hint{font-size:13px;color:rgba(234,243,239,.62);margin-top:8px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}

/* ============ CTA strip ============ */
.cta-strip{
  background:linear-gradient(120deg,var(--brand-deep),var(--brand));
  border-radius:22px;padding:48px 52px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:0 22px 48px rgba(11,95,90,.22);
}
.cta-strip h2{color:#fff;margin-bottom:10px}
.cta-strip p{color:rgba(255,255,255,.86);margin-bottom:0;max-width:620px}

/* ============ Footer ============ */
.site-footer{background:var(--footer-bg);color:var(--footer-text);padding:72px 0 28px;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.site-footer .brand-name{color:#fff}
.site-footer .brand-sub{color:rgba(234,243,239,.62)}
.footer-about{font-size:14.5px;line-height:1.9;color:rgba(234,243,239,.72);margin:0}
.site-footer h4{color:#fff;font-size:15px;letter-spacing:.06em;margin-bottom:18px}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:10px}
.footer-links a{color:rgba(234,243,239,.78);font-size:14.5px}
.footer-links a:hover{color:var(--accent)}
.footer-contact{list-style:none;padding:0;margin:0}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;margin-bottom:12px;font-size:14.5px;color:rgba(234,243,239,.76)}
.footer-contact i{color:var(--accent);margin-top:6px;font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(234,243,239,.14);margin-top:44px;padding-top:22px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(234,243,239,.62);
}
.to-top{
  position:fixed;right:24px;bottom:28px;width:48px;height:48px;border-radius:14px;
  background:var(--brand);color:#fff;border:none;display:grid;place-items:center;
  box-shadow:0 14px 30px rgba(11,95,90,.32);cursor:pointer;opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease,transform .25s ease,background .25s ease;z-index:1040;
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{background:var(--brand-deep);transform:translateY(-3px)}

/* ============ Responsive ============ */
@media (max-width:1199px){
  .mega-panel{width:640px;grid-template-columns:1fr 1fr}
  .mega-card{grid-column:1 / -1}
}
@media (max-width:991px){
  .site-nav .container{flex-wrap:wrap}
  .nav-toggler{display:flex;margin-left:auto}
  .navbar-collapse{
    flex-basis:100%;width:100%;background:var(--surface);
    border:1px solid var(--border);border-radius:var(--radius-card);
    margin-top:14px;padding:14px;box-shadow:var(--shadow-sm);
  }
  .main-menu{gap:2px;margin:0 0 10px}
  .main-menu .nav-link{padding:12px 14px;border-radius:10px}
  .main-menu .nav-link.active::after{display:none}
  .nav-tail{flex-direction:column;align-items:stretch;gap:10px}
  .mega-toggle{width:100%;justify-content:space-between}
  .mega-panel{
    position:static;width:100%;opacity:1;visibility:visible;transform:none;
    display:none;box-shadow:none;margin-top:10px;grid-template-columns:1fr;padding:18px;
  }
  .mega-wrap.open .mega-panel{display:grid}
  .mega-wrap:hover .mega-panel{display:none}
  .mega-wrap.open:hover .mega-panel{display:grid}
  .section{padding:64px 0}
  .service-grid,.wall,.timeline-layout,.contact-band,.footer-grid{grid-template-columns:1fr}
  .q-card-wide .wide-inner{grid-template-columns:1fr}
  .contact-band{padding:36px}
  .cta-strip{padding:36px}
  .timeline-media img{min-height:260px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding-left:16px;padding-right:16px}
  .section{padding:48px 0}
  .cat-hero{padding:44px 0 52px}
  .hero-actions .btn{width:100%;text-align:center}
  .form-row{grid-template-columns:1fr}
  .contact-band{padding:28px;border-radius:18px}
  .cta-strip{padding:28px;border-radius:18px}
  .footer-grid{gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  table.check-table{min-width:0}
  table.check-table thead{display:none}
  table.check-table tbody tr{
    display:block;border:1px solid var(--border);border-radius:12px;
    margin:0 14px 14px;padding:6px 2px;background:var(--surface);
  }
  table.check-table tbody td{
    display:block;border:none;padding:8px 16px;font-size:15px;
  }
  table.check-table tbody td::before{
    content:attr(data-label);display:block;font-size:12.5px;font-weight:700;
    color:var(--brand);letter-spacing:.08em;margin-bottom:4px;
  }
  .to-top{right:16px;bottom:18px}
}
@media (max-width:575px){
  h1{font-size:1.85rem}
  .brand-sub{display:none}
  .q-card{padding:22px}
}