/* roulang page: index */
:root{
  --brand:#00C48C;
  --brand-dark:#00A576;
  --brand-soft:#E6F9F2;
  --accent:#FF6B35;
  --accent-soft:#FFF0EA;
  --ink:#101418;
  --text:#253033;
  --muted:#647A78;
  --line:#E3E9E7;
  --bg:#F6F8F7;
  --surface:#FFFFFF;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-pill:999px;
  --radius-img:14px;
  --shadow-1:0 1px 2px rgba(16,20,24,.05), 0 6px 18px rgba(16,20,24,.05);
  --shadow-2:0 12px 32px rgba(16,20,24,.10);
  --focus-ring:0 0 0 3px rgba(0,196,140,.28);
  --bs-primary:#00C48C;
  --bs-body-color:#253033;
  --bs-body-bg:#F6F8F7;
  --bs-border-color:#E3E9E7;
  --bs-border-radius:16px;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:96px;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--ink);font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
::selection{background:rgba(0,196,140,.22);}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
@media (min-width:1200px){.container{max-width:1200px;}}
@media (min-width:1400px){.container{max-width:1240px;}}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
  backdrop-filter:blur(8px);
}
.header-inner{display:flex;align-items:center;gap:18px;height:76px;}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;letter-spacing:-.3px;color:#fff;white-space:nowrap;}
.brand:hover{color:#fff;}
.site-header.is-scrolled .brand{color:var(--ink);}
.site-header.is-scrolled .brand:hover{color:var(--brand);}
.brand-mark{
  display:grid;place-items:center;width:36px;height:36px;border-radius:11px;
  background:linear-gradient(140deg,var(--brand),var(--brand-dark));
  color:#fff;flex:0 0 auto;box-shadow:0 4px 12px rgba(0,196,140,.32);
}
.nav-desktop{margin-left:auto;margin-right:auto;}
.nav-list{display:flex;align-items:center;gap:2px;}
.nav-list .nav-link{
  position:relative;display:block;padding:8px 14px;font-size:15px;font-weight:500;
  color:rgba(255,255,255,.86);border-radius:8px;
}
.site-header.is-scrolled .nav-list .nav-link{color:var(--text);}
.nav-list .nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left center;transition:transform .2s ease;
}
.nav-list .nav-link:hover,.nav-list .nav-link:focus-visible{color:var(--brand);}
.nav-list .nav-link:hover::after,.nav-list .nav-link.active::after{transform:scaleX(1);}
.nav-list .nav-link.active{color:var(--brand);}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;display:grid;place-items:center;cursor:pointer;
  border-radius:10px;border:1px solid rgba(255,255,255,.22);
  background:transparent;color:rgba(255,255,255,.88);
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.icon-btn:hover{background:rgba(255,255,255,.12);color:#fff;}
.icon-btn:focus-visible{outline:none;box-shadow:var(--focus-ring);}
.site-header.is-scrolled .icon-btn{border-color:var(--line);color:var(--muted);background:#fff;}
.site-header.is-scrolled .icon-btn:hover{color:var(--brand);border-color:var(--brand-soft);background:var(--brand-soft);}
.nav-toggle{
  display:none;width:42px;height:42px;place-items:center;margin-left:auto;cursor:pointer;
  border-radius:10px;border:1px solid rgba(255,255,255,.25);background:transparent;color:#fff;
}
.site-header.is-scrolled .nav-toggle{border-color:var(--line);color:var(--ink);background:#fff;}

.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border:0;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.4;color:#fff;cursor:pointer;
  background:linear-gradient(180deg,var(--brand),var(--brand-dark));
  box-shadow:0 6px 16px rgba(0,196,140,.24);
  transition:filter .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-brand:hover{color:#fff;filter:brightness(.94);transform:translateY(-1px);box-shadow:0 10px 22px rgba(0,196,140,.28);}
.btn-brand:focus-visible{outline:none;box-shadow:var(--focus-ring);}
.btn-brand:active{transform:translateY(0);}
.btn-outline-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  background:#fff;color:var(--brand);border:1.5px solid var(--brand);
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.btn-outline-brand:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-1px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  background:transparent;color:#fff;border:1px solid rgba(255,255,255,.28);
  transition:background .18s ease,border-color .18s ease,transform .18s ease;
}
.btn-ghost:hover{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.45);transform:translateY(-1px);}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);
  text-underline-offset:3px;
}
.text-link:hover{color:var(--brand-dark);text-decoration:underline;font-weight:700;}

/* Mega 面板 */
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;cursor:pointer;
  padding:9px 14px;border-radius:9px;font-size:14px;font-weight:500;
  border:1px solid rgba(255,255,255,.25);background:transparent;color:rgba(255,255,255,.88);
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.mega-trigger:hover{background:rgba(255,255,255,.10);color:#fff;}
.site-header.is-scrolled .mega-trigger{border-color:var(--line);background:#fff;color:var(--text);}
.site-header.is-scrolled .mega-trigger:hover{color:var(--brand);border-color:var(--brand-soft);background:var(--brand-soft);}
.mega-trigger svg{transition:transform .2s ease;}
.mega-wrap.open .mega-trigger svg{transform:rotate(180deg);}
.mega-panel{
  position:absolute;top:calc(100% + 16px);right:0;width:820px;max-width:calc(100vw - 40px);
  background:var(--surface);border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-2);padding:26px;z-index:1050;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
  transition-delay:.10s;
}
.mega-panel::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:3px;border-radius:16px 16px 0 0;
  background:linear-gradient(90deg,var(--brand),var(--brand-dark));
}
.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);transition-delay:0s;}
.mega-grid{display:grid;grid-template-columns:1fr 1fr 1.05fr;gap:24px;}
.mega-col h5{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:14px;letter-spacing:.2px;}
.mega-col ul{display:flex;flex-direction:column;gap:4px;}
.mega-col ul a{
  display:block;padding:7px 10px;border-radius:8px;font-size:14px;color:var(--muted);
  transition:background .16s ease,color .16s ease;
}
.mega-col ul a:hover{background:var(--brand-soft);color:var(--brand-dark);}
.mega-entry{
  display:flex;flex-direction:column;gap:12px;padding:14px;border-radius:14px;
  background:var(--bg);border:1px solid var(--line);
}
.mega-entry img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:10px;}
.mega-entry strong{font-size:14px;font-weight:600;color:var(--ink);line-height:1.6;}

/* ============ Hero ============ */
.hero{
  position:relative;display:flex;align-items:center;overflow:hidden;
  background:var(--ink);padding:150px 0 100px;min-height:620px;
}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.44;z-index:0;}
.hero::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(112deg,rgba(16,20,24,.94) 0%,rgba(16,20,24,.80) 46%,rgba(0,196,140,.18) 100%);
}
.hero-inner{
  position:relative;z-index:2;display:grid;grid-template-columns:1.06fr .84fr;
  gap:56px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 15px;border-radius:var(--radius-pill);
  background:rgba(0,196,140,.16);border:1px solid rgba(0,196,140,.34);
  color:#7FF0CD;font-size:13px;font-weight:600;letter-spacing:.2px;
}
.hero h1{
  color:#fff;margin:20px 0 18px;letter-spacing:-.5px;
  font-size:clamp(30px,4.4vw,46px);font-weight:800;line-height:1.25;max-width:620px;
}
.hero-sub{color:rgba(255,255,255,.78);font-size:17px;line-height:1.85;max-width:580px;margin-bottom:30px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px 24px;}
.hero-trust li{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.72);}
.hero-trust li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);flex:0 0 auto;}
.hero-panel{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:20px;padding:20px;backdrop-filter:blur(6px);
}
.hero-panel-head{
  display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:#7FF0CD;margin-bottom:14px;
}
.hero-panel-head .dot{
  width:8px;height:8px;border-radius:50%;background:var(--brand);
  box-shadow:0 0 0 4px rgba(0,196,140,.18);
}
.hero-panel img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-img);}
.hero-panel-list{margin-top:14px;}
.hero-panel-list li{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:11px 2px;border-top:1px solid rgba(255,255,255,.10);
  font-size:14px;color:rgba(255,255,255,.74);
}
.hero-panel-list li:first-child{border-top:0;}
.hero-panel-list li strong{color:#fff;font-weight:600;font-size:14px;}

/* ============ 通用板块 ============ */
.section{padding:96px 0;}
.section-alt{background:var(--surface);}
.section-head{margin-bottom:36px;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.section-head h2{
  position:relative;padding-left:18px;letter-spacing:-.4px;
  font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.3;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.16em;width:4px;height:.92em;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),var(--brand-dark));
}
.section-desc{font-size:15px;line-height:1.85;color:var(--muted);max-width:620px;margin-top:12px;}
.text-block{max-width:780px;}

/* 指标看板 */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.metric-card{
  position:relative;overflow:hidden;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:24px 24px 28px;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.metric-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-soft);}
.metric-value{
  display:flex;align-items:baseline;gap:6px;font-size:38px;font-weight:800;
  line-height:1.1;letter-spacing:-1px;color:var(--brand);transition:color .18s ease;
}
.metric-card:hover .metric-value{color:var(--accent);}
.metric-unit{font-size:13px;font-weight:500;color:var(--muted);letter-spacing:0;}
.metric-label{font-size:15px;font-weight:600;color:var(--ink);margin-top:10px;}
.metric-note{font-size:13px;line-height:1.7;color:var(--muted);margin-top:8px;}
.metric-bar{position:absolute;left:0;bottom:0;height:2px;background:var(--brand);transition:background .18s ease;}
.metric-card:hover .metric-bar{background:var(--accent);}

/* 服务矩阵 bento */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:22px;}
.bento-main{grid-column:span 5;display:flex;flex-direction:column;}
.bento-side{grid-column:span 7;display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.svc-main{
  display:flex;flex-direction:column;gap:14px;height:100%;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.svc-main:hover,.svc-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-soft);}
.svc-main h3,.svc-card h3{font-size:21px;font-weight:600;line-height:1.45;color:var(--ink);transition:color .18s ease;}
.svc-main:hover h3,.svc-card:hover h3{color:var(--brand);}
.svc-main p,.svc-card p{font-size:15px;line-height:1.85;color:var(--muted);}
.svc-main img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-img);margin-top:auto;}
.svc-icon{
  display:grid;place-items:center;width:46px;height:46px;border-radius:13px;
  background:var(--brand-soft);color:var(--brand);flex:0 0 auto;
  transition:background .18s ease,color .18s ease;
}
.svc-icon svg{width:23px;height:23px;}
.svc-card:hover .svc-icon,.svc-main:hover .svc-icon{background:var(--brand);color:#fff;}
.svc-card{
  display:flex;flex-direction:column;gap:12px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}

/* 资讯列表 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-soft);}
.news-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--brand-soft);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.news-card:hover .news-thumb img{transform:scale(1.05);}
.news-body{display:flex;flex-direction:column;gap:10px;flex:1;padding:20px 22px 22px;}
.news-body h3{font-size:19px;font-weight:600;line-height:1.5;}
.news-body h3 a{color:var(--ink);}
.news-body h3 a:hover{color:var(--brand);}
.news-summary{
  font-size:15px;line-height:1.8;color:var(--muted);margin:0;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.badge-soft{
  display:inline-flex;align-items:center;align-self:flex-start;
  padding:4px 12px;border-radius:var(--radius-pill);
  background:var(--brand-soft);color:var(--brand-dark);font-size:12px;font-weight:600;line-height:1.6;
}
.badge-accent{background:var(--accent-soft);color:var(--accent);}
.empty-state{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;gap:12px;
  padding:56px 24px;text-align:center;background:var(--surface);
  border:1px dashed var(--line);border-radius:var(--radius-card);
}
.empty-state svg{width:34px;height:34px;color:var(--muted);}
.empty-state p{font-size:15px;color:var(--muted);}

/* 反馈 */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.quote-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.quote-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-soft);}
.quote-mark{font-size:34px;font-weight:800;color:var(--brand-soft);line-height:1;margin-bottom:8px;}
.quote-card p{font-size:15px;line-height:1.85;color:var(--text);}
.quote-foot{display:flex;align-items:center;gap:10px;margin-top:18px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);}
.avatar{
  display:grid;place-items:center;width:34px;height:34px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand-dark);font-size:13px;font-weight:700;flex:0 0 auto;
}

/* 对照表 */
.compare-wrap{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
}
.compare-table{width:100%;border-collapse:collapse;}
.compare-table thead th{
  background:var(--ink);color:#fff;font-size:15px;font-weight:600;
  text-align:left;padding:18px 24px;
}
.compare-table thead th + th{border-left:1px solid rgba(255,255,255,.08);}
.compare-table tbody td{
  padding:16px 24px;font-size:15px;line-height:1.7;color:var(--text);
  border-top:1px solid var(--line);vertical-align:top;
}
.compare-table tbody tr:nth-child(even) td{background:var(--bg);}
.compare-table tbody td:first-child{color:var(--muted);}
.compare-table tbody td:last-child{
  background:var(--brand-soft);border-left:3px solid var(--brand);color:var(--ink);font-weight:500;
}
.compare-table tbody tr:nth-child(even) td:last-child{background:#DDF6EE;}

/* FAQ */
.faq-accordion{max-width:860px;}
.faq-accordion .accordion-item{border:0;border-top:1px solid var(--line);background:transparent;}
.faq-accordion .accordion-item:last-child{border-bottom:1px solid var(--line);}
.faq-accordion .accordion-button{
  position:relative;background:transparent;box-shadow:none;border-radius:0;
  padding:22px 52px 22px 0;font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand);background:transparent;box-shadow:none;}
.faq-accordion .accordion-button:focus{box-shadow:none;border-color:transparent;}
.faq-accordion .accordion-button:focus-visible{outline:none;box-shadow:var(--focus-ring);border-radius:8px;}
.faq-accordion .accordion-button::after{
  content:"";position:absolute;right:8px;top:50%;width:16px;height:16px;
  transform:translateY(-50%);border-radius:2px;
  background-image:linear-gradient(var(--brand),var(--brand)),linear-gradient(var(--brand),var(--brand));
  background-position:center,center;
  background-size:16px 2px,2px 16px;
  background-repeat:no-repeat;
  transition:transform .22s ease,background-image .22s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(45deg);}
.faq-accordion .accordion-body{padding:0 52px 24px 0;font-size:15px;line-height:1.9;color:var(--muted);}

/* 表单 */
.form-card{
  position:relative;overflow:hidden;background:var(--surface);border:1px solid var(--line);
  border-radius:20px;box-shadow:var(--shadow-2);padding:40px;
  display:grid;grid-template-columns:1fr 1.15fr;gap:48px;
}
.form-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:linear-gradient(180deg,var(--brand),var(--brand-dark));
}
.form-intro h2{
  position:relative;padding-left:18px;font-size:clamp(24px,3vw,32px);font-weight:700;line-height:1.3;
}
.form-intro h2::before{
  content:"";position:absolute;left:0;top:.16em;width:4px;height:.92em;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),var(--brand-dark));
}
.form-intro p{font-size:15px;line-height:1.85;color:var(--muted);margin-top:14px;}
.form-points{margin-top:22px;display:flex;flex-direction:column;gap:10px;}
.form-points li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text);}
.form-points li::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);
  margin-top:11px;flex:0 0 auto;
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.form-grid .full{grid-column:1/-1;}
.form-label{display:block;font-size:13px;font-weight:600;color:var(--text);margin-bottom:6px;}
.form-control,.form-select{
  width:100%;height:46px;padding:0 14px;font-size:15px;color:var(--text);
  background:#fff;border:1px solid var(--line);border-radius:10px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
textarea.form-control{height:auto;min-height:112px;padding:12px 14px;line-height:1.8;resize:vertical;}
.form-control:focus,.form-select:focus{outline:none;border-color:var(--brand);box-shadow:var(--focus-ring);}
.form-control::placeholder{color:#9AAAA7;}
.form-actions{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:4px;}
.form-hint{font-size:12px;color:var(--muted);line-height:1.7;margin-top:12px;}
.form-msg{font-size:14px;font-weight:600;color:var(--brand-dark);margin-top:14px;}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding-top:72px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:40px;padding-bottom:52px;}
.footer-brand .brand{color:#fff;font-size:19px;}
.footer-brand .brand:hover{color:#fff;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);margin:18px 0 20px;max-width:330px;}
.footer-social{display:flex;gap:10px;}
.footer-social span{
  display:grid;place-items:center;width:36px;height:36px;border-radius:10px;
  border:1px solid rgba(255,255,255,.14);color:rgba(255,255,255,.72);
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.footer-social span:hover{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.3);}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);text-underline-offset:3px;}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-contact li{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.08);padding:22px 0 26px;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* 移动端导航 */
.mobile-nav{width:340px;max-width:88vw;background:var(--surface);}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--line);}
.mobile-nav .offcanvas-title{font-size:16px;font-weight:700;color:var(--ink);}
.mobile-links{display:flex;flex-direction:column;margin-bottom:22px;}
.mobile-links a{
  display:block;padding:14px 4px;border-bottom:1px solid var(--line);
  font-size:16px;font-weight:500;color:var(--text);
}
.mobile-links a.active{color:var(--brand);font-weight:600;}
.mobile-cta{width:100%;}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .mega-panel{width:660px;}
  .mega-grid{grid-template-columns:1fr 1fr;}
  .mega-entry{grid-column:1/-1;flex-direction:row;align-items:center;}
  .mega-entry img{width:180px;flex:0 0 auto;}
  .hero-inner{gap:40px;}
}
@media (max-width:991.98px){
  .nav-desktop{display:none;}
  .nav-toggle{display:grid;}
  .section{padding:64px 0;}
  .hero{min-height:0;padding:126px 0 72px;}
  .hero-inner{grid-template-columns:1fr;gap:36px;}
  .hero-sub{max-width:100%;}
  .metric-grid{grid-template-columns:repeat(2,1fr);}
  .bento-main{grid-column:span 12;}
  .bento-side{grid-column:span 12;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .quote-grid{grid-template-columns:1fr;}
  .form-card{grid-template-columns:1fr;gap:32px;padding:32px;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
}
@media (max-width:767.98px){
  .container{padding-left:20px;padding-right:20px;}
  .section{padding:56px 0;}
  .hero{padding:114px 0 60px;}
  .hero h1{margin:16px 0 14px;}
  .hero-cta .btn-brand,.hero-cta .btn-ghost{flex:1 1 auto;}
  .metric-grid{grid-template-columns:repeat(2,1fr);gap:16px;}
  .metric-value{font-size:30px;}
  .bento-side{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .compare-table thead{display:none;}
  .compare-table tbody tr{
    display:block;background:var(--surface)!important;border:1px solid var(--line);
    border-radius:14px;margin:14px;padding:6px 4px;overflow:hidden;
  }
  .compare-table tbody td{
    display:block;border-top:0;padding:12px 16px;background:transparent!important;
    border-left:0!important;font-size:14px;
  }
  .compare-table tbody td::before{
    content:attr(data-label);display:block;font-size:12px;font-weight:600;
    color:var(--muted);margin-bottom:4px;letter-spacing:.2px;
  }
  .compare-table tbody td:last-child{background:var(--brand-soft)!important;border-radius:10px;margin:0 8px 8px;}
  .faq-accordion .accordion-button{font-size:16px;padding:18px 46px 18px 0;}
  .faq-accordion .accordion-body{padding-right:0;}
  .form-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575.98px){
  body{font-size:15px;}
  .header-inner{height:68px;}
  .brand{font-size:16px;}
  .hero{padding:104px 0 52px;}
  .hero h1{font-size:clamp(28px,7.6vw,32px);}
  .hero-sub{font-size:15px;}
  .metric-card{padding:18px;}
  .metric-value{font-size:26px;}
  .metric-note{font-size:12px;}
  .hero-cta{gap:10px;}
  .hero-cta .btn-brand,.hero-cta .btn-ghost{width:100%;flex:1 1 100%;}
  .form-card{padding:24px;}
  .form-actions .btn-brand{width:100%;}
  .section-head h2{font-size:23px;}
}

/* roulang page: article */
:root{
  --brand:#00C48C;
  --brand-dark:#00A576;
  --brand-soft:#E6F9F2;
  --accent:#FF6B35;
  --accent-soft:#FFF0EA;
  --ink:#101418;
  --text:#253033;
  --muted:#647A78;
  --line:#E3E9E7;
  --bg:#F6F8F7;
  --surface:#FFFFFF;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-pill:999px;
  --radius-img:14px;
  --shadow-1:0 1px 2px rgba(16,20,24,.05),0 6px 18px rgba(16,20,24,.05);
  --shadow-2:0 12px 32px rgba(16,20,24,.10);
  --focus-ring:0 0 0 3px rgba(0,196,140,.28);
  --bs-body-font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-body-color:#253033;
  --bs-body-bg:#F6F8F7;
  --bs-primary:#00C48C;
  --bs-primary-rgb:0,196,140;
  --bs-border-color:#E3E9E7;
  --bs-border-radius:12px;
  --bs-link-color:#00A576;
  --bs-link-hover-color:#00845E;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.9;
  font-variant-numeric:tabular-nums;
  letter-spacing:.1px;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand-dark);text-decoration:none;text-underline-offset:3px}
a:hover{color:var(--brand-dark);text-decoration:underline}
button{font-family:inherit}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.2px}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:none;box-shadow:var(--focus-ring);border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 24px;border:0;border-radius:var(--radius-btn);
  background:linear-gradient(180deg,var(--brand),var(--brand-dark));
  color:#fff;font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .18s ease,filter .18s ease,box-shadow .18s ease;
  text-decoration:none;
}
.btn-brand:hover,.btn-brand:focus{color:#fff;text-decoration:none;filter:brightness(.94);transform:translateY(-1px);box-shadow:var(--shadow-1)}
.btn-brand:active{transform:translateY(0)}
.btn-outline-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 22px;border:1.5px solid var(--brand);border-radius:var(--radius-btn);
  background:#fff;color:var(--brand-dark);font-size:15px;font-weight:600;
  transition:background .18s ease,color .18s ease,transform .18s ease;text-decoration:none;
}
.btn-outline-brand:hover{background:var(--brand-soft);color:var(--brand-dark);text-decoration:none;transform:translateY(-1px)}
.btn-ghost-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 24px;border:1px solid rgba(255,255,255,.28);border-radius:var(--radius-btn);
  background:transparent;color:#fff;font-size:15px;font-weight:600;
  transition:background .18s ease,transform .18s ease;text-decoration:none;
}
.btn-ghost-light:hover{background:rgba(255,255,255,.1);color:#fff;text-decoration:none;transform:translateY(-1px)}
.badge-pill{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:var(--radius-pill);
  background:var(--brand-soft);color:var(--brand-dark);
  font-size:12px;font-weight:600;letter-spacing:.2px;
}
.badge-pill.is-accent{background:var(--accent-soft);color:#D9501F}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(246,248,247,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.site-header.is-stuck{background:var(--surface);border-bottom-color:var(--line);box-shadow:var(--shadow-1)}
.header-inner{display:flex;align-items:center;gap:18px;min-height:74px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:17px;letter-spacing:-.3px;text-decoration:none}
.brand:hover{color:var(--ink);text-decoration:none}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  display:grid;place-items:center;color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
}
.brand-text{white-space:nowrap}
.nav-desktop{margin-left:10px}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 14px;border-radius:8px;
  color:var(--text);font-size:15px;font-weight:500;
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--brand-dark);background:var(--brand-soft);text-decoration:none}
.nav-link.active{color:var(--brand-dark);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--brand);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:var(--surface);color:var(--text);display:grid;place-items:center;
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.icon-btn:hover{color:var(--brand-dark);border-color:var(--brand-soft);background:var(--brand-soft)}
.nav-toggle{
  display:none;width:42px;height:42px;margin-left:auto;
  border:1px solid var(--line);border-radius:10px;background:var(--surface);
  color:var(--text);place-items:center;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand-dark)}
.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 16px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:var(--surface);color:var(--text);
  font-size:15px;font-weight:600;transition:border-color .18s ease,color .18s ease;
}
.mega-trigger:hover{border-color:var(--brand);color:var(--brand-dark)}
.mega-wrap.open .mega-trigger{border-color:var(--brand);color:var(--brand-dark)}
.mega-wrap.open .mega-trigger svg{transform:rotate(180deg)}
.mega-trigger svg{transition:transform .2s ease}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:840px;
  background:var(--surface);border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);border-top:3px solid var(--brand);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
  overflow:hidden;
}
.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-grid{display:grid;grid-template-columns:1fr 1.1fr 1.2fr;gap:0;padding:8px}
.mega-col{padding:18px 20px}
.mega-col + .mega-col{border-left:1px solid var(--line)}
.mega-col h5{font-size:13px;font-weight:600;color:var(--muted);letter-spacing:.6px;margin-bottom:12px}
.mega-col ul li{margin-bottom:2px}
.mega-col ul li a{
  display:block;padding:7px 0;color:var(--text);font-size:14.5px;
  transition:color .16s ease,padding-left .16s ease;
}
.mega-col ul li a:hover{color:var(--brand-dark);padding-left:6px;text-decoration:none}
.mega-post{display:block;padding:8px 0;border-bottom:1px dashed var(--line)}
.mega-post:last-child{border-bottom:0}
.mega-post strong{display:block;font-size:14.5px;font-weight:600;color:var(--text);line-height:1.6}
.mega-post:hover strong{color:var(--brand-dark)}
.mega-post span{font-size:12.5px;color:var(--muted)}
.mega-post:hover{text-decoration:none}
.mega-card{display:flex;flex-direction:column;gap:12px}
.mega-card figure{margin:0;border-radius:12px;overflow:hidden;aspect-ratio:16/9;background:var(--bg)}
.mega-card figure img{width:100%;height:100%;object-fit:cover}
.mega-card p{font-size:13.5px;color:var(--muted);line-height:1.75;margin:0}
.mega-card a.link-arrow{font-size:14px;font-weight:600;color:var(--brand-dark)}

/* ---------- mobile offcanvas ---------- */
.mobile-nav{--bs-offcanvas-width:320px;background:var(--surface)}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.mobile-nav .brand-text{font-size:16px;font-weight:800;color:var(--ink)}
.m-nav-list{margin-bottom:22px}
.m-nav-list li + li{border-top:1px solid var(--line)}
.m-nav-list a{display:block;padding:14px 4px;color:var(--text);font-size:15.5px;font-weight:500}
.m-nav-list a.active{color:var(--brand-dark);font-weight:600}
.m-nav-group{border-top:1px solid var(--line);padding:14px 4px}
.m-nav-group h5{font-size:13px;color:var(--muted);font-weight:600;margin-bottom:8px}
.m-nav-group ul li a{display:block;padding:8px 0;font-size:14.5px;color:var(--text)}

/* ---------- article head ---------- */
.page-article main{padding-bottom:0}
.article-head{background:var(--surface);border-bottom:1px solid var(--line);padding:34px 0 30px}
.breadcrumb-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:16px}
.breadcrumb-row a{color:var(--muted)}
.breadcrumb-row a:hover{color:var(--brand-dark)}
.breadcrumb-row .sep{color:#B8C5C2}
.breadcrumb-row .current{color:var(--text);font-weight:500;max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head h1{
  font-size:clamp(28px,3.6vw,40px);
  line-height:1.3;font-weight:800;letter-spacing:-.5px;
  max-width:960px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:20px;padding-top:18px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.meta-row time{color:var(--muted)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#C9D6D3}

/* ---------- article body ---------- */
.article-section{padding:56px 0 64px}
.article-layout{
  display:grid;grid-template-columns:minmax(0,780px) 280px;
  justify-content:center;gap:56px;align-items:start;
}
.article-body{
  max-width:780px;font-size:16px;line-height:1.9;color:var(--text);
  overflow-wrap:break-word;word-break:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  position:relative;padding-left:18px;
  font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.35;
  margin:2em 0 .8em;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.34em;width:4px;height:1em;
  border-radius:2px;background:var(--brand);
}
.article-body h3{font-size:20px;font-weight:600;line-height:1.45;margin:1.6em 0 .6em}
.article-body h4{font-size:17px;font-weight:600;margin:1.4em 0 .5em}
.article-body p{margin:0 0 1.2em}
.article-body strong{color:var(--ink)}
.article-body a{color:var(--brand-dark);text-decoration:underline}
.article-body a:hover{font-weight:600}
.article-body img{border-radius:var(--radius-img);margin:1.5em 0;box-shadow:var(--shadow-1)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;
  background:var(--brand-soft);border-left:4px solid var(--brand);
  border-radius:0 12px 12px 0;color:#1B2A26;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.2em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:.5em}
.article-body li::marker{color:var(--brand)}
.article-body pre{
  background:var(--bg);border:1px solid var(--line);border-radius:12px;
  padding:16px 18px;overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body code{
  background:var(--bg);border:1px solid var(--line);border-radius:6px;
  padding:2px 6px;font-size:14px;
}
.article-body pre code{background:none;border:0;padding:0}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left}
.article-body th{background:var(--bg);font-weight:600;color:var(--ink)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}
.empty-state{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:56px 28px;text-align:center;box-shadow:var(--shadow-1);
}
.empty-state svg{color:var(--brand);margin-bottom:14px}
.empty-state p{font-size:15.5px;color:var(--muted);margin-bottom:22px}

/* ---------- aside ---------- */
.article-aside{position:sticky;top:98px}
.aside-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:22px 20px;
}
.aside-card h3{font-size:17px;font-weight:600;margin-bottom:14px;position:relative;padding-left:14px}
.aside-card h3::before{content:"";position:absolute;left:0;top:.32em;width:3px;height:1em;border-radius:2px;background:var(--brand)}
.aside-list li + li{margin-top:12px;padding-top:12px;border-top:1px dashed var(--line)}
.aside-list a{display:block;font-size:14.5px;line-height:1.7;color:var(--text);font-weight:500}
.aside-list a:hover{color:var(--brand-dark);text-decoration:none}
.aside-list .t{display:block;font-size:12.5px;color:var(--muted);font-weight:400;margin-top:4px}
.aside-card .btn-outline-brand{width:100%;margin-top:18px}

/* ---------- more reading ---------- */
.read-section{padding:8px 0 88px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px}
.section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;position:relative;padding-left:16px}
.section-head h2::before{content:"";position:absolute;left:0;top:.36em;width:4px;height:1em;border-radius:2px;background:var(--brand)}
.section-head .link-more{font-size:14.5px;font-weight:600;color:var(--brand-dark)}
.read-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.read-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);color:inherit;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.read-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-soft);text-decoration:none;color:inherit}
.read-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg)}
.read-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.read-card:hover .read-thumb img{transform:scale(1.04)}
.read-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.read-body h3{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.read-body time{font-size:13px;color:var(--muted);margin-top:auto}

/* ---------- cta bar ---------- */
.cta-bar{background:var(--ink);padding:44px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-inner p{color:rgba(255,255,255,.78);font-size:16px;margin:0;max-width:640px;line-height:1.8}
.cta-inner strong{color:#fff}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.site-footer .brand{color:#fff}
.site-footer .brand:hover{color:#fff}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);margin:16px 0 18px;max-width:320px}
.footer-social{display:flex;gap:10px}
.footer-social span{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.16);color:rgba(255,255,255,.7);
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.footer-social span:hover{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.3)}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14px;color:rgba(255,255,255,.72);transition:color .16s ease}
.footer-col ul li a:hover{color:#fff;text-decoration:underline}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.72);margin-bottom:10px}
.footer-bottom{
  margin-top:48px;padding:22px 0;border-top:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.7)}

/* ---------- responsive ---------- */
@media (max-width:1399.98px){
  .container{max-width:1200px}
}
@media (max-width:1199.98px){
  .header-inner{gap:12px}
  .nav-link{padding:9px 10px;font-size:14.5px}
  .mega-panel{width:660px}
  .mega-grid{grid-template-columns:1fr 1fr}
  .mega-card{grid-column:1 / -1;border-left:0;border-top:1px solid var(--line)}
  .article-layout{grid-template-columns:minmax(0,1fr) 260px;gap:36px}
}
@media (max-width:991.98px){
  .nav-desktop{display:none}
  .nav-actions .icon-btn{display:none}
  .nav-actions .btn-brand{display:none}
  .nav-toggle{display:grid}
  .mega-wrap{display:none}
  .site-header{background:var(--surface);border-bottom-color:var(--line)}
  .article-head{padding:28px 0 24px}
  .breadcrumb-row .current{max-width:100%}
  .article-section{padding:40px 0 48px}
  .article-layout{grid-template-columns:1fr;gap:32px}
  .article-aside{position:static}
  .aside-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
  .aside-list li + li{margin-top:0;padding-top:0;border-top:0;border-left:1px dashed var(--line);padding-left:16px}
  .aside-card .btn-outline-brand{width:auto;margin-top:22px}
  .read-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  .container{padding-left:20px;padding-right:20px}
  .header-inner{min-height:66px}
  .brand-text{font-size:16px}
  .article-head h1{font-size:clamp(24px,6vw,30px)}
  .article-body{font-size:15.5px}
  .article-section{padding:32px 0 40px}
  .aside-list{grid-template-columns:1fr;gap:0}
  .aside-list li + li{margin-top:12px;padding-top:12px;border-top:1px dashed var(--line);border-left:0;padding-left:0}
  .read-grid{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-inner .btn-ghost-light,.cta-inner .btn-brand{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .site-footer{padding-top:48px}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px}
  body{font-size:15px}
  .article-head h1{font-size:24px;letter-spacing:-.3px}
  .meta-row{gap:10px;font-size:12.5px}
  .read-body{padding:16px}
  .cta-bar{padding:34px 0}
}

/* roulang page: category1 */
:root{
  --brand:#00C48C;
  --brand-dark:#00A576;
  --brand-soft:#E6F9F2;
  --accent:#FF6B35;
  --accent-soft:#FFF0EA;
  --ink:#101418;
  --text:#253033;
  --muted:#647A78;
  --line:#E3E9E7;
  --bg:#F6F8F7;
  --surface:#FFFFFF;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-pill:999px;
  --radius-img:14px;
  --shadow-1:0 1px 2px rgba(16,20,24,.05),0 6px 18px rgba(16,20,24,.05);
  --shadow-2:0 12px 32px rgba(16,20,24,.10);
  --focus-ring:0 0 0 3px rgba(0,196,140,.28);

  --bs-primary:#00C48C;
  --bs-primary-rgb:0,196,140;
  --bs-body-color:#253033;
  --bs-body-bg:#F6F8F7;
  --bs-border-color:#E3E9E7;
  --bs-border-radius:10px;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-link-color:#00A576;
  --bs-link-hover-color:#00C48C;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-dark);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.2px}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:none;box-shadow:var(--focus-ring);border-radius:6px}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--shadow-1)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.brand:hover{text-decoration:none;color:var(--ink)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(180deg,var(--brand),var(--brand-dark));
  color:#fff;flex:0 0 auto;
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.2px;white-space:nowrap}
.nav-desktop{margin-left:12px;flex:1 1 auto}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-link{
  display:inline-block;padding:8px 12px;border-radius:8px;
  color:var(--text);font-size:15px;font-weight:500;
  border-bottom:2px solid transparent;transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--brand-dark);background:var(--brand-soft);text-decoration:none}
.nav-link.active{color:var(--brand-dark);border-bottom-color:var(--brand);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  background:var(--surface);color:var(--muted);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:all .18s ease;
}
.icon-btn:hover{color:var(--brand-dark);border-color:var(--brand-soft);background:var(--brand-soft)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink);align-items:center;justify-content:center;cursor:pointer;
}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 26px;border-radius:var(--radius-btn);border:none;
  background:linear-gradient(180deg,var(--brand),var(--brand-dark));
  color:#fff;font-weight:600;font-size:15px;line-height:1.2;
  text-decoration:none;transition:filter .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-brand:hover{filter:brightness(.94);transform:translateY(-1px);color:#fff;text-decoration:none}
.btn-brand:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 26px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.28);background:transparent;
  color:#fff;font-weight:600;font-size:15px;text-decoration:none;
  transition:background .18s ease,transform .18s ease;
}
.btn-ghost:hover{background:rgba(255,255,255,.10);color:#fff;transform:translateY(-1px);text-decoration:none}
.btn-outline-brand{
  display:inline-flex;align-items:center;justify-content:center;
  padding:11px 24px;border-radius:var(--radius-btn);
  border:1.5px solid var(--brand);background:var(--surface);
  color:var(--brand-dark);font-weight:600;font-size:15px;text-decoration:none;
  transition:all .18s ease;
}
.btn-outline-brand:hover{background:var(--brand-soft);color:var(--brand-dark);text-decoration:none}

/* ---------- mega ---------- */
.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 14px;border-radius:10px;border:1px solid var(--line);
  background:var(--surface);color:var(--text);font-size:15px;font-weight:500;cursor:pointer;
  transition:all .18s ease;
}
.mega-trigger:hover,.mega-trigger[aria-expanded="true"]{color:var(--brand-dark);border-color:var(--brand-soft);background:var(--brand-soft)}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:820px;
  background:var(--surface);border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-2);padding:22px;overflow:hidden;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
  backdrop-filter:blur(8px);
}
.mega-panel::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--brand),var(--brand-dark));
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel,
.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-grid{display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:22px}
.mega-col h5{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:10px}
.mega-col ul li{margin-bottom:8px}
.mega-col ul li a{font-size:14px;color:var(--muted)}
.mega-col ul li a:hover{color:var(--brand-dark);text-decoration:none}
.mega-post{display:block;padding:8px 0;border-bottom:1px dashed var(--line)}
.mega-post:last-child{border-bottom:none}
.mega-post strong{display:block;font-size:14px;font-weight:600;color:var(--text);line-height:1.5}
.mega-post span{font-size:12.5px;color:var(--muted)}
.mega-entry{
  display:block;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  background:var(--surface);transition:all .18s ease;
}
.mega-entry:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-soft);text-decoration:none}
.mega-entry img{width:100%;aspect-ratio:16/9;object-fit:cover}
.mega-entry-body{padding:12px 14px}
.mega-entry-body strong{display:block;font-size:14.5px;font-weight:600;color:var(--ink)}
.mega-entry-body span{font-size:13px;color:var(--brand-dark)}

/* ---------- hero ---------- */
.hero{
  position:relative;
  min-height:360px;
  display:flex;align-items:center;
  background:linear-gradient(rgba(16,20,24,.72),rgba(16,20,24,.72)),url(/assets/images/backpic/back-1.webp) center/cover no-repeat;
  color:#fff;
  padding:56px 0;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(0,196,140,.12),rgba(0,196,140,0) 60%);
  pointer-events:none;
}
.hero .container{position:relative;z-index:2}
.breadcrumb-bar{display:flex;flex-wrap:wrap;gap:8px;font-size:13.5px;color:rgba(255,255,255,.74);margin-bottom:16px}
.breadcrumb-bar a{color:rgba(255,255,255,.82)}
.breadcrumb-bar a:hover{color:#fff}
.breadcrumb-bar span.sep{opacity:.5}
.hero h1{
  color:#fff;font-size:clamp(30px,4.4vw,46px);font-weight:800;
  line-height:1.25;letter-spacing:-.5px;max-width:820px;
}
.hero-lead{margin-top:16px;max-width:680px;font-size:16.5px;line-height:1.85;color:rgba(255,255,255,.86)}
.hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px}
.hero-tags{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px}
.hero-tags span{
  padding:6px 14px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.20);
  font-size:13px;color:rgba(255,255,255,.9);
}

/* ---------- sections ---------- */
.section{padding:88px 0}
.section--alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin-bottom:28px;max-width:820px}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-dark);
  background:var(--brand-soft);padding:6px 14px;border-radius:var(--radius-pill);margin-bottom:14px;
}
.section-title{position:relative;font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.3;padding-left:18px}
.section-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),var(--brand-dark));
}
.section-head--center .section-title{padding-left:0;padding-top:14px}
.section-head--center .section-title::before{left:50%;top:0;transform:translateX(-50%);width:40px;height:3px;bottom:auto;border-radius:2px}
.lead-line{margin-top:12px;font-size:15.5px;color:var(--muted);line-height:1.85}

/* ---------- checklist ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:start}
.check-list{display:grid;gap:18px;margin-top:8px}
.check-item{display:flex;gap:16px;align-items:flex-start}
.check-icon{
  flex:0 0 auto;width:42px;height:42px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand-dark);
  transition:background .18s ease,color .18s ease;
}
.check-item:hover .check-icon{background:var(--brand);color:#fff}
.check-item h3{font-size:18px;font-weight:600;line-height:1.45;margin-bottom:4px}
.check-item p{font-size:15px;color:var(--muted);line-height:1.8;margin:0}
.media-figure{position:sticky;top:96px}
.media-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-img);
  box-shadow:var(--shadow-2);
}
.media-caption{
  margin-top:14px;padding:16px 18px;border-radius:14px;
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-1);
}
.media-caption strong{display:block;font-size:15px;font-weight:600;color:var(--ink);margin-bottom:4px}
.media-caption span{font-size:13.5px;color:var(--muted)}

/* ---------- stats ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px}
.stat-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:24px 24px 28px;
  box-shadow:var(--shadow-1);transition:all .18s ease;overflow:hidden;
}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-soft)}
.stat-value{font-size:38px;font-weight:800;line-height:1.1;color:var(--brand-dark);transition:color .18s ease}
.stat-card:hover .stat-value{color:var(--accent)}
.stat-unit{font-size:13px;color:var(--muted);margin-left:6px;font-weight:500}
.stat-title{margin-top:10px;font-size:16px;font-weight:600;color:var(--ink)}
.stat-note{margin-top:6px;font-size:13px;color:var(--muted);line-height:1.7}
.stat-bar{position:absolute;left:0;bottom:0;height:2px;background:var(--brand);transition:background .18s ease,width .3s ease}
.stat-card:hover .stat-bar{background:var(--accent)}

/* ---------- entry grid ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.entry-card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-1);transition:all .18s ease;height:100%;
}
.entry-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-soft);text-decoration:none}
.entry-card .entry-ico{
  width:40px;height:40px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand-dark);transition:all .18s ease;
}
.entry-card:hover .entry-ico{background:var(--brand);color:#fff}
.entry-card h3{font-size:17px;font-weight:600;line-height:1.45}
.entry-card p{font-size:14.5px;color:var(--muted);line-height:1.75;margin:0}
.entry-card .text-link{margin-top:auto}
.text-link{font-size:14.5px;font-weight:600;color:var(--brand-dark)}
.entry-card:hover .text-link{color:var(--brand)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-accordion{border-top:1px solid var(--line)}
.faq-accordion .accordion-item{background:transparent;border:none;border-bottom:1px solid var(--line)}
.faq-accordion .accordion-header{margin:0}
.faq-accordion .accordion-button{
  background:transparent;border:none;box-shadow:none;
  font-size:17px;font-weight:600;color:var(--ink);
  padding:22px 0;line-height:1.5;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand-dark);background:transparent;box-shadow:none}
.faq-accordion .accordion-button:focus{box-shadow:var(--focus-ring)}
.faq-accordion .accordion-button::after{
  background-image:none;content:"+";
  font-size:24px;font-weight:400;line-height:1;color:var(--brand-dark);
  width:auto;height:auto;display:flex;align-items:center;justify-content:center;
  margin-left:auto;transform-origin:center;transition:transform .2s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(45deg)}
.faq-accordion .accordion-body{padding:0 0 22px;font-size:15px;line-height:1.9;color:var(--muted);max-width:780px}

/* ---------- CTA band ---------- */
.cta-band{background:var(--ink);color:#fff;padding:64px 0}
.cta-band .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.72);max-width:620px}
.cta-points{margin-top:18px;display:flex;flex-wrap:wrap;gap:18px}
.cta-points span{font-size:13.5px;color:rgba(255,255,255,.7)}
.cta-points span::before{content:"・";color:var(--brand);margin-right:2px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 28px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.site-footer .brand{color:#fff}
.site-footer .brand:hover{color:#fff}
.site-footer .brand-text{color:#fff;font-size:16px}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:300px}
.footer-social{margin-top:18px;display:flex;gap:10px}
.footer-social span{
  width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.08);color:rgba(255,255,255,.78);
}
.footer-col h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{color:rgba(255,255,255,.72);font-size:14px}
.footer-col ul li a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-contact li{color:rgba(255,255,255,.62);line-height:1.75}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.62)}

/* ---------- offcanvas ---------- */
.offcanvas.mobile-nav{background:var(--surface);width:min(360px,88vw)}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--line);padding:16px 20px}
.mobile-nav .offcanvas-body{padding:18px 20px 28px}
.mobile-nav .m-group{border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:14px}
.mobile-nav .m-group h5{font-size:13px;font-weight:600;color:var(--muted);margin-bottom:10px}
.mobile-nav .m-link{display:block;padding:10px 0;font-size:15.5px;color:var(--text);font-weight:500}
.mobile-nav .m-link.active{color:var(--brand-dark);font-weight:600}
.mobile-nav .btn-brand{width:100%;margin-top:10px}

/* ---------- responsive ---------- */
@media (max-width:1399px){
  .entry-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1199px){
  .mega-panel{width:660px}
  .mega-grid{grid-template-columns:1fr 1fr;gap:18px}
  .mega-entry{grid-column:span 2}
  .nav-link{padding:8px 9px;font-size:14.5px}
  .split{gap:36px}
}
@media (max-width:991px){
  .nav-desktop{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .nav-actions{margin-left:0}
  .hero{min-height:340px;padding:48px 0}
  .split{grid-template-columns:1fr}
  .media-figure{position:static;order:-1}
  .media-figure img{aspect-ratio:16/9}
  .section{padding:64px 0}
  .cta-band{padding:56px 0}
}
@media (max-width:767px){
  .container{padding-left:20px;padding-right:20px}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .stat-value{font-size:30px}
  .entry-grid{grid-template-columns:1fr}
  .hero{min-height:300px}
  .hero-lead{font-size:15.5px}
  .section{padding:48px 0}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:28px}
  .footer-desc{max-width:none}
  .cta-inner{flex-direction:column;align-items:stretch}
}
@media (max-width:575px){
  .container{padding-left:16px;padding-right:16px}
  .brand-text{font-size:15.5px}
  h1,.hero h1{font-size:28px !important}
  .section-title{font-size:22px}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .stat-card{padding:18px}
  .stat-value{font-size:26px}
  .stat-note{font-size:12.5px}
  .btn-brand,.btn-ghost,.btn-outline-brand{width:100%}
  .hero-actions{flex-direction:column;align-items:stretch}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .check-item{gap:12px}
  .check-icon{width:36px;height:36px}
}

/* roulang page: category2 */
:root{
  --brand:#00C48C;
  --brand-dark:#00A576;
  --brand-soft:#E6F9F2;
  --accent:#FF6B35;
  --accent-soft:#FFF0EA;
  --ink:#101418;
  --text:#253033;
  --muted:#647A78;
  --line:#E3E9E7;
  --bg:#F6F8F7;
  --surface:#FFFFFF;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-pill:999px;
  --radius-img:14px;
  --shadow-1:0 1px 2px rgba(16,20,24,.05),0 6px 18px rgba(16,20,24,.05);
  --shadow-2:0 12px 32px rgba(16,20,24,.10);
  --focus-ring:0 0 0 3px rgba(0,196,140,.28);

  --bs-primary:#00C48C;
  --bs-body-color:#253033;
  --bs-body-bg:#F6F8F7;
  --bs-border-color:#E3E9E7;
  --bs-border-radius:12px;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;text-underline-offset:3px;transition:color .18s ease;}
a:hover{color:var(--brand-dark);text-decoration:underline;}
button{font-family:inherit;}
:focus-visible{outline:none;box-shadow:var(--focus-ring);border-radius:8px;}

h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:700;}
h1{font-size:clamp(30px,4.4vw,46px);line-height:1.25;letter-spacing:-.5px;font-weight:800;}
h2{font-size:clamp(24px,3vw,34px);line-height:1.3;}
h3{font-size:21px;line-height:1.45;font-weight:600;}
h4{font-size:17px;font-weight:600;line-height:1.5;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}

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

/* ---------- 通用组件 ---------- */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border:none;border-radius:var(--radius-btn);
  background:linear-gradient(180deg,#00C48C 0%,#00A576 100%);
  color:#fff;font-weight:600;font-size:15px;line-height:1.4;
  box-shadow:0 6px 16px rgba(0,165,118,.22);
  transition:transform .18s ease,filter .18s ease,box-shadow .18s ease;
  cursor:pointer;
}
.btn-brand:hover{filter:brightness(.94);transform:translateY(-1px);color:#fff;text-decoration:none;box-shadow:0 10px 22px rgba(0,165,118,.28);}
.btn-brand:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 24px;border-radius:var(--radius-btn);
  border:1.5px solid var(--brand);background:#fff;color:var(--brand);
  font-weight:600;font-size:15px;transition:background .18s ease,color .18s ease,transform .18s ease;
}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);text-decoration:none;transform:translateY(-1px);}
.btn-dark-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 26px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.28);background:transparent;color:#fff;font-weight:600;font-size:15px;
  transition:background .18s ease;
}
.btn-dark-ghost:hover{background:rgba(255,255,255,.10);color:#fff;text-decoration:none;}

.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:var(--radius-pill);
  background:var(--brand-soft);color:var(--brand-dark);
  font-size:12.5px;font-weight:600;line-height:1.6;white-space:nowrap;
}
.pill-accent{background:var(--accent-soft);color:var(--accent);}
.pill-line{background:#fff;border:1px solid var(--line);color:var(--muted);}

.section{padding:88px 0;}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:28px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{position:relative;padding-top:16px;}
.section-head h2::before{
  content:"";position:absolute;top:0;left:0;
  width:40px;height:3px;border-radius:3px;background:var(--brand);
}
.section-head.center h2::before{left:50%;transform:translateX(-50%);}
.section-head .sub{margin-top:12px;color:var(--muted);font-size:15px;line-height:1.8;}
.lead{font-size:17px;line-height:1.85;color:var(--muted);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:72px;padding-top:10px;padding-bottom:10px;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:17px;letter-spacing:-.2px;}
.brand:hover{color:var(--ink);text-decoration:none;}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:var(--brand-soft);color:var(--brand-dark);flex:0 0 auto;
}
.brand-text{white-space:nowrap;}

.nav-desktop{margin-left:8px;}
.nav-list{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0;}
.nav-list .nav-link{
  display:inline-block;padding:9px 14px;border-radius:var(--radius-btn);
  color:var(--text);font-size:14.5px;font-weight:500;
  border-bottom:2px solid transparent;transition:color .18s ease,background .18s ease,border-color .18s ease;
}
.nav-list .nav-link:hover{color:var(--brand);background:var(--brand-soft);text-decoration:none;}
.nav-list .nav-link.active{color:var(--brand-dark);font-weight:600;border-bottom-color:var(--brand);}

.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:#fff;color:var(--muted);
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand-soft);background:var(--brand-soft);}
.nav-toggle{
  display:none;margin-left:auto;
  width:40px;height:40px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:#fff;color:var(--ink);
  align-items:center;justify-content:center;
}

.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;
  padding:10px 16px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:#fff;color:var(--text);
  font-size:14px;font-weight:600;transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.mega-trigger:hover,.mega-trigger[aria-expanded="true"]{color:var(--brand-dark);border-color:var(--brand-soft);background:var(--brand-soft);}
.mega-trigger svg{transition:transform .2s ease;}
.mega-trigger[aria-expanded="true"] svg{transform:rotate(180deg);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);
  width:840px;max-width:calc(100vw - 32px);
  background:var(--surface);
  border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-2);
  padding:26px 26px 22px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
  backdrop-filter:blur(8px);
}
.mega-panel::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--brand);border-radius:16px 16px 0 0;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel,
.mega-wrap.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);transition-delay:.12s;}
.mega-grid{display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:26px;}
.mega-title{
  font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.4px;
  margin:0 0 12px;padding-bottom:8px;border-bottom:1px solid var(--line);
}
.mega-col ul{list-style:none;margin:0;padding:0;}
.mega-col ul li{margin-bottom:4px;}
.mega-col ul li a{
  display:block;padding:7px 10px;margin-left:-10px;
  border-radius:8px;color:var(--text);font-size:14px;
  transition:background .16s ease,color .16s ease;
}
.mega-col ul li a:hover{background:var(--brand-soft);color:var(--brand-dark);text-decoration:none;}
.mega-news li a{display:flex;flex-direction:column;gap:2px;}
.mega-news li a span{font-size:14px;color:var(--text);line-height:1.6;}
.mega-news li a time{font-size:12.5px;color:var(--muted);}
.mega-card{
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  background:#fff;box-shadow:var(--shadow-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.mega-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-soft);}
.mega-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.mega-card-body{padding:14px 16px 16px;}
.mega-card-body p{font-size:14px;font-weight:600;color:var(--ink);margin:0 0 6px;line-height:1.5;}
.mega-card-body a{font-size:13.5px;font-weight:600;}

/* ---------- 面包屑 ---------- */
.crumbbar{background:var(--surface);border-bottom:1px solid var(--line);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;margin:0;padding:14px 0;font-size:13px;color:var(--muted);}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"/";color:var(--line);}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand);}
.crumb [aria-current="page"]{color:var(--brand-dark);font-weight:600;}

/* ---------- 分类页 Hero（浅色居中） ---------- */
.cat-hero{
  background:
    radial-gradient(760px 300px at 50% -60px,rgba(0,196,140,.10),transparent 70%),
    linear-gradient(180deg,#FFFFFF 0%,#F6F8F7 100%);
  border-bottom:1px solid var(--line);
  padding:64px 0 60px;
}
.cat-hero-inner{max-width:820px;margin:0 auto;text-align:center;}
.badge-row{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:20px;}
.cat-hero h1{margin-bottom:18px;}
.cat-hero .lead{font-size:17px;max-width:700px;margin:0 auto 28px;}
.cat-hero-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;}

/* ---------- Bento 能力矩阵 ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:22px;}
.bento-card{
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.bento-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-soft);}
.bento-card:hover h3,.bento-card:hover .card-link{color:var(--brand);}
.bento-card:hover .bento-icon{color:var(--brand);}
.bento-lg{grid-column:span 7;background:linear-gradient(160deg,#FFFFFF 0%,#F4FBF8 100%);}
.bento-lg2{grid-column:span 5;background:var(--ink);border-color:var(--ink);}
.bento-lg2 h3,.bento-lg2 p,.bento-lg2 .card-link{color:#fff;}
.bento-lg2 .bento-icon{background:rgba(0,196,140,.16);color:#4BE0B4;}
.bento-lg2:hover{border-color:var(--ink);}
.bento-lg2:hover h3,.bento-lg2:hover .card-link{color:#4BE0B4;}
.bento-lg2 .bento-media{border-color:rgba(255,255,255,.12);}
.bento-sm{grid-column:span 4;padding:24px;}
.bento-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  background:var(--brand-soft);color:var(--brand-dark);
  margin-bottom:16px;transition:color .18s ease;
}
.bento-card h3{margin-bottom:10px;transition:color .18s ease;}
.bento-card p{color:var(--muted);font-size:15px;line-height:1.8;margin-bottom:14px;}
.bento-lg2 p{color:rgba(255,255,255,.72);}
.card-link{font-size:14px;font-weight:600;color:var(--brand);margin-top:auto;}
.card-link:hover{text-decoration:underline;}
.bento-media{
  margin-top:18px;border:1px solid var(--line);border-radius:var(--radius-img);overflow:hidden;
}
.bento-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}

/* ---------- 时间线 ---------- */
.timeline{position:relative;max-width:820px;margin:0 auto;padding-left:34px;}
.timeline::before{
  content:"";position:absolute;left:11px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--brand) 0%,rgba(0,196,140,.18) 100%);
  border-radius:2px;
}
.tl-item{position:relative;padding-bottom:32px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-34px;top:6px;
  width:24px;height:24px;border-radius:50%;
  background:#fff;border:2px solid var(--brand);
  box-shadow:0 0 0 4px rgba(0,196,140,.12);
}
.tl-item::after{
  content:"";position:absolute;left:-28px;top:14px;
  width:12px;height:12px;border-radius:50%;background:var(--brand);
}
.tl-step{font-size:12.5px;font-weight:700;color:var(--brand-dark);letter-spacing:.4px;}
.tl-item h3{margin:6px 0 8px;}
.tl-item p{color:var(--muted);font-size:15px;line-height:1.8;margin:0;}
.tl-meta{margin-top:10px;display:flex;flex-wrap:wrap;gap:8px;}

/* ---------- 对照表 ---------- */
.compare-wrap{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
}
.compare-table{width:100%;border-collapse:collapse;}
.compare-table th{
  background:var(--ink);color:#fff;font-size:15px;font-weight:600;
  padding:16px 20px;text-align:left;border:none;
}
.compare-table th:last-child{background:#0C3B2E;}
.compare-table td{
  padding:16px 20px;font-size:15px;line-height:1.8;color:var(--text);
  border-top:1px solid var(--line);vertical-align:top;
}
.compare-table tbody tr:nth-child(odd) td{background:var(--bg);}
.compare-table td:last-child{
  background:var(--brand-soft);border-left:3px solid var(--brand);
  color:#0C3B2E;font-weight:500;
}
.compare-table tbody tr:nth-child(odd) td:last-child{background:#DCF5EC;}
.compare-mobile{display:none;}

/* ---------- FAQ ---------- */
.faq-acc{max-width:820px;margin:0 auto;}
.faq-acc .accordion-item{
  background:transparent;border:none;border-top:1px solid var(--line);
}
.faq-acc .accordion-item:last-child{border-bottom:1px solid var(--line);}
.faq-acc .accordion-button{
  background:transparent;color:var(--ink);
  font-size:17px;font-weight:600;line-height:1.6;
  padding:22px 44px 22px 4px;box-shadow:none;
  border-radius:0;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand-dark);background:transparent;box-shadow:none;}
.faq-acc .accordion-button:focus{box-shadow:var(--focus-ring);border-radius:8px;}
.faq-acc .accordion-button::after{display:none;}
.faq-acc .accordion-button .faq-icon{
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand-dark);
  font-size:17px;font-weight:600;line-height:1;
  transition:transform .22s ease,background .22s ease,color .22s ease;
}
.faq-acc .accordion-button[aria-expanded="true"] .faq-icon{transform:translateY(-50%) rotate(45deg);background:var(--brand);color:#fff;}
.faq-acc .accordion-body{
  padding:0 44px 24px 4px;font-size:15px;line-height:1.9;color:var(--muted);
  max-width:780px;
}

/* ---------- 转化表单 ---------- */
.apply-card{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);border-radius:20px;
  box-shadow:var(--shadow-2);
  padding:36px 36px 32px 40px;
  overflow:hidden;
}
.apply-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--brand);
}
.apply-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 22px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13px;font-weight:600;color:var(--text);}
.field .control,
.field select,
.field textarea{
  width:100%;border:1px solid var(--line);border-radius:10px;
  background:#fff;color:var(--text);font-size:15px;
  padding:0 14px;height:46px;line-height:46px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.field textarea{height:auto;min-height:132px;line-height:1.8;padding:12px 14px;resize:vertical;}
.field .control:focus,
.field select:focus,
.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:var(--focus-ring);}
.apply-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;margin-top:24px;}
.form-note{font-size:12.5px;color:var(--muted);margin:12px 0 0;}

/* ---------- 深色提示条 ---------- */
.dark-strip{background:var(--ink);color:#fff;padding:56px 0;}
.dark-strip h2{color:#fff;}
.dark-strip .sub{color:rgba(255,255,255,.72);margin-top:10px;font-size:15px;}
.strip-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;}
.strip-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
.strip-list .pill{background:rgba(255,255,255,.08);color:rgba(255,255,255,.86);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand .brand{color:#fff;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(0,196,140,.16);color:#4BE0B4;}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);margin-bottom:18px;max-width:320px;}
.footer-social{display:flex;gap:10px;}
.footer-social span{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:rgba(255,255,255,.07);color:rgba(255,255,255,.78);
}
.footer-col h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-col ul li a:hover{color:#fff;text-decoration:underline;}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.68);display:flex;gap:8px;}
.footer-contact li span{color:rgba(255,255,255,.45);flex:0 0 auto;}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 移动端折叠导航 ---------- */
.offcanvas.mobile-nav{background:var(--ink);color:#fff;width:min(360px,88vw);}
.mobile-nav .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.1);}
.mobile-nav .offcanvas-title{color:#fff;font-size:16px;font-weight:700;}
.mobile-nav .btn-close{filter:invert(1) grayscale(1) brightness(1.6);}
.mobile-nav .m-group{border-bottom:1px solid rgba(255,255,255,.08);}
.mobile-nav .m-link{
  display:block;padding:15px 4px;color:rgba(255,255,255,.86);font-size:15px;font-weight:500;
}
.mobile-nav .m-link.active{color:#4BE0B4;}
.mobile-nav .m-link:hover{color:#4BE0B4;text-decoration:none;}
.mobile-nav .m-title{font-size:12.5px;font-weight:700;color:rgba(255,255,255,.45);letter-spacing:.4px;padding:18px 4px 8px;}
.mobile-nav .m-sub a{display:block;padding:10px 4px;color:rgba(255,255,255,.7);font-size:14px;}
.mobile-nav .m-sub a:hover{color:#fff;text-decoration:none;}
.mobile-nav .m-cta{margin-top:22px;display:block;text-align:center;}

/* ---------- 响应式 ---------- */
@media (min-width:1400px){
  .container{max-width:1240px;}
}
@media (max-width:1199.98px){
  .mega-panel{width:720px;}
  .mega-grid{grid-template-columns:1fr 1fr;}
  .mega-col:last-child{grid-column:1 / -1;}
  .bento-lg{grid-column:span 12;}
  .bento-lg2{grid-column:span 12;}
  .bento-sm{grid-column:span 6;}
}
@media (max-width:991.98px){
  .nav-desktop{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{gap:16px;}
  .section{padding:64px 0;}
  .cat-hero{padding:48px 0 44px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .timeline{padding-left:30px;}
  .apply-grid{grid-template-columns:1fr;}
  .apply-card{padding:28px;}
  .compare-table th,.compare-table td{padding:14px 16px;font-size:14px;}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
  .section{padding:52px 0;}
  .header-inner{min-height:64px;}
  .brand{font-size:15.5px;}
  .bento-sm{grid-column:span 12;}
  .compare-wrap{display:none;}
  .compare-mobile{display:grid;gap:16px;}
  .cmp-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
    padding:18px 18px 16px;box-shadow:var(--shadow-1);
  }
  .cmp-card .row-line{display:flex;gap:10px;font-size:14.5px;line-height:1.8;}
  .cmp-card .row-line+.row-line{margin-top:10px;padding-top:10px;border-top:1px dashed var(--line);}
  .cmp-tag{flex:0 0 62px;font-size:12.5px;font-weight:700;}
  .cmp-tag.bad{color:var(--accent);}
  .cmp-tag.good{color:var(--brand-dark);}
  .strip-inner{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cat-hero .lead{font-size:15.5px;}
  .tl-item::before{left:-30px;width:20px;height:20px;}
  .tl-item::after{left:-25px;top:13px;width:10px;height:10px;}
  .timeline{padding-left:26px;}
}
@media (max-width:575.98px){
  body{font-size:15.5px;}
  h1{font-size:28px;}
  h2{font-size:23px;}
  h3{font-size:18.5px;}
  .section{padding:44px 0;}
  .cat-hero{padding:38px 0 36px;}
  .cat-hero-actions .btn-brand,
  .cat-hero-actions .btn-ghost{width:100%;}
  .apply-foot .btn-brand{width:100%;}
  .apply-card{padding:22px 18px 20px 22px;}
  .bento-card{padding:20px;}
  .faq-acc .accordion-button{font-size:15.5px;padding-right:40px;}
  .faq-acc .accordion-body{font-size:14.5px;padding-right:16px;}
  .dark-strip{padding:44px 0;}
}

/* roulang page: category3 */
:root{
  --brand:#00C48C;
  --brand-dark:#00A576;
  --brand-soft:#E6F9F2;
  --accent:#FF6B35;
  --accent-soft:#FFF0EA;
  --ink:#101418;
  --text:#253033;
  --muted:#647A78;
  --line:#E3E9E7;
  --bg:#F6F8F7;
  --surface:#FFFFFF;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-pill:999px;
  --radius-img:14px;
  --shadow-1:0 1px 2px rgba(16,20,24,.05), 0 6px 18px rgba(16,20,24,.05);
  --shadow-2:0 12px 32px rgba(16,20,24,.10);
  --focus-ring:0 0 0 3px rgba(0,196,140,.28);

  --bs-primary:#00C48C;
  --bs-primary-rgb:0,196,140;
  --bs-body-color:#253033;
  --bs-body-bg:#F6F8F7;
  --bs-border-color:#E3E9E7;
  --bs-border-radius:12px;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-top:72px;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body .container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.2px}
h1{font-size:clamp(30px,4.4vw,46px);font-weight:800;line-height:1.25;letter-spacing:-.5px}
h2{font-size:clamp(24px,3vw,34px);line-height:1.3}
h3{font-size:21px;font-weight:600;line-height:1.45}
h4{font-size:17px;font-weight:600}
p{margin:0}
img{max-width:100%;display:block}
a{color:var(--brand-dark);text-decoration:none;text-underline-offset:3px;transition:color .18s ease}
a:hover{color:var(--brand)}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit}
:focus-visible{outline:none;box-shadow:var(--focus-ring);border-radius:6px}
.num{font-variant-numeric:tabular-nums}

/* ============ Header ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease,background-color .22s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:18px;letter-spacing:-.3px;flex:none}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--brand-soft);color:var(--brand-dark);
  display:grid;place-items:center;flex:none;
}
.nav-desktop{margin-left:6px}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-link{
  display:inline-block;position:relative;padding:9px 14px;border-radius:10px;
  color:var(--text);font-size:15px;font-weight:500;
}
.nav-link:hover{color:var(--brand-dark);background:var(--brand-soft)}
.nav-link.active{color:var(--brand-dark);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;
  background:var(--brand);border-radius:2px;
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:var(--surface);
  color:var(--muted);display:grid;place-items:center;cursor:pointer;transition:all .18s ease;
}
.icon-btn:hover{color:var(--brand-dark);border-color:var(--brand-soft);background:var(--brand-soft)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink);place-items:center;cursor:pointer;margin-left:auto;
}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 24px;border-radius:var(--radius-btn);border:0;
  background:linear-gradient(180deg,var(--brand),var(--brand-dark));
  color:#fff;font-size:15px;font-weight:600;cursor:pointer;
  transition:transform .18s ease,filter .18s ease,box-shadow .18s ease;
  box-shadow:0 6px 16px rgba(0,165,118,.22);
}
.btn-brand:hover{color:#fff;filter:brightness(.94);transform:translateY(-1px)}
.btn-brand:focus-visible{box-shadow:var(--focus-ring)}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 22px;border-radius:var(--radius-btn);border:1.5px solid var(--brand);
  background:var(--surface);color:var(--brand-dark);font-size:15px;font-weight:600;cursor:pointer;
  transition:all .18s ease;
}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-dark)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 22px;border-radius:var(--radius-btn);border:1px solid rgba(255,255,255,.28);
  background:transparent;color:#fff;font-size:15px;font-weight:600;cursor:pointer;
  transition:background-color .18s ease,color .18s ease;
}
.btn-ghost:hover{background:rgba(255,255,255,.10);color:#fff}

/* Mega menu */
.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;padding:10px 14px;border-radius:10px;
  border:1px solid var(--line);background:var(--surface);color:var(--text);
  font-size:15px;font-weight:500;cursor:pointer;transition:all .18s ease;
}
.mega-trigger:hover{color:var(--brand-dark);border-color:var(--brand-soft);background:var(--brand-soft)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:820px;max-width:88vw;
  background:var(--surface);border-radius:16px;border-top:3px solid var(--brand);
  box-shadow:var(--shadow-2);padding:24px;z-index:60;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s ease;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel,
.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-grid{display:grid;grid-template-columns:1.05fr 1fr 1.15fr;gap:24px}
.mega-col h5{font-size:14px;font-weight:600;color:var(--muted);letter-spacing:.4px;margin-bottom:12px}
.mega-col ul li{margin-bottom:9px}
.mega-col ul a{font-size:14.5px;color:var(--text);display:inline-block}
.mega-col ul a:hover{color:var(--brand-dark);text-decoration:underline}
.mega-news li{display:flex;flex-direction:column;gap:2px;padding:9px 0;border-bottom:1px dashed var(--line)}
.mega-news li:last-child{border-bottom:0}
.mega-news .t{font-size:14.5px;color:var(--text);line-height:1.5}
.mega-news .d{font-size:13px;color:var(--muted)}
.mega-card{
  display:flex;gap:12px;align-items:center;padding:12px;border:1px solid var(--line);
  border-radius:var(--radius-card);background:var(--bg);transition:all .18s ease;
}
.mega-card:hover{background:var(--surface);box-shadow:var(--shadow-1);border-color:var(--brand-soft);transform:translateY(-2px)}
.mega-card img{width:76px;height:64px;object-fit:cover;border-radius:10px;flex:none}
.mega-card strong{display:block;font-size:15px;color:var(--ink);line-height:1.5}
.mega-card span{font-size:13px;color:var(--brand-dark)}

/* ============ Hero ============ */
.hero-cat3{position:relative;background:var(--ink);color:#fff;overflow:hidden}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.30;
}
.hero-cat3::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(16,20,24,.95) 0%,rgba(16,20,24,.78) 52%,rgba(16,20,24,.46) 100%);
}
.hero-inner{
  position:relative;z-index:2;display:grid;grid-template-columns:1.18fr .82fr;
  gap:44px;align-items:center;min-height:380px;padding:52px 0;
}
.hero-cat3 h1{color:#fff;margin:14px 0 0}
.hero-cat3 .hl{
  background:linear-gradient(transparent 62%,rgba(0,196,140,.55) 62%);
  padding:0 2px;border-radius:2px;
}
.hero-sub{color:rgba(255,255,255,.82);font-size:16.5px;line-height:1.9;margin-top:16px;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-facts{display:flex;flex-wrap:wrap;gap:22px;margin-top:26px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14)}
.hero-facts li{font-size:13.5px;color:rgba(255,255,255,.72)}
.hero-facts strong{color:#fff;font-weight:700;font-variant-numeric:tabular-nums}
.hero-media{position:relative}
.hero-media img{
  width:100%;height:300px;object-fit:cover;object-position:30% center;
  border-radius:var(--radius-img);box-shadow:var(--shadow-2);
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62)}
.crumb a{color:rgba(255,255,255,.78)}
.crumb a:hover{color:#fff}
.crumb span{opacity:.5}

.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--radius-pill);
  background:var(--brand-soft);color:var(--brand-dark);
  font-size:12px;font-weight:600;line-height:1.6;white-space:nowrap;
}
.badge-soft.on-dark{background:rgba(0,196,140,.16);color:#5ee1b6}
.badge-hot{
  display:inline-flex;align-items:center;
  padding:5px 13px;border-radius:var(--radius-pill);
  background:var(--accent-soft);color:var(--accent);
  font-size:12px;font-weight:600;white-space:nowrap;
}

/* ============ Sections ============ */
.section{padding:88px 0}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:34px}
.section-head h2{position:relative;padding-left:18px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.32em;width:4px;height:.86em;
  background:var(--brand);border-radius:3px;
}
.section-head p{margin-top:12px;color:var(--muted);font-size:15.5px;line-height:1.85}
.section-head.center{max-width:760px;margin-left:auto;margin-right:auto;text-align:center}
.section-head.center h2{padding-left:0}
.section-head.center h2::before{left:50%;top:auto;bottom:-14px;transform:translateX(-50%);width:44px;height:3px}

/* 排行列表 */
.rank-list{display:grid;gap:12px}
.rank-item{
  display:grid;grid-template-columns:56px 1fr auto auto;gap:18px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px 22px;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.rank-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-soft)}
.rank-no{
  font-size:22px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;
  line-height:1;letter-spacing:-.5px;
}
.rank-item:hover .rank-no{color:var(--accent)}
.rank-main h3{font-size:17px;margin-bottom:4px}
.rank-main p{font-size:14px;color:var(--muted);line-height:1.75}

/* 双列图文卡 */
.feature-rows{display:grid;gap:26px}
.feature-row{
  display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.feature-row:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-soft)}
.feature-row:nth-child(even) .feature-media{order:2}
.feature-row:nth-child(even) .feature-body{order:1}
.feature-media img{
  width:100%;height:250px;object-fit:cover;border-radius:var(--radius-img);
}
.feature-body h3{margin:14px 0 10px}
.feature-body p{color:var(--muted);font-size:15px;line-height:1.85}
.tick-list{margin-top:16px;display:grid;gap:9px}
.tick-list li{position:relative;padding-left:24px;font-size:14.5px;color:var(--text);line-height:1.8}
.tick-list li::before{
  content:"";position:absolute;left:2px;top:.62em;width:7px;height:7px;
  border-radius:50%;background:var(--brand);
}

/* 误区纠正 */
.myth-list{display:grid;gap:14px}
.myth-item{
  display:grid;grid-template-columns:1fr 1fr;gap:0;
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  background:var(--surface);box-shadow:var(--shadow-1);
}
.myth-cell{display:flex;gap:14px;padding:20px 22px;align-items:flex-start}
.myth-wrong{background:var(--accent-soft);border-right:1px solid var(--line)}
.myth-right{background:var(--brand-soft)}
.mark{
  width:26px;height:26px;border-radius:50%;flex:none;display:grid;place-items:center;
  color:#fff;margin-top:2px;
}
.mark-x{background:var(--accent)}
.mark-v{background:var(--brand)}
.myth-cell p{font-size:15px;line-height:1.8}
.myth-wrong p{color:#8a3a1c}
.myth-right p{color:#0a6b52}

/* FAQ */
.faq{max-width:820px;margin:0 auto}
.faq .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.faq .accordion-button{
  background:transparent;border:0;box-shadow:none;
  font-size:17px;font-weight:600;color:var(--ink);
  padding:22px 4px;line-height:1.6;
}
.faq .accordion-button:not(.collapsed){color:var(--brand-dark);background:transparent;box-shadow:none}
.faq .accordion-button:focus{box-shadow:var(--focus-ring)}
.faq .accordion-button::after{
  content:"";flex:none;width:16px;height:16px;margin-left:auto;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M8 2.4v11.2M2.4 8h11.2' stroke='%2300A576' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:center;background-size:15px 15px;
  transform:none;transition:transform .2s ease;
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(45deg)}
.faq .accordion-body{padding:0 4px 22px;font-size:15px;line-height:1.9;color:var(--muted);max-width:780px}

/* CTA */
.cta-band{background:var(--ink);color:#fff;padding:70px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px)}
.cta-band p{color:rgba(255,255,255,.72);font-size:15.5px;margin-top:10px;max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* Footer */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand .brand{color:#fff;margin-bottom:16px}
.footer-brand .brand-text{color:#fff}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.68);max-width:320px}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social span{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:rgba(255,255,255,.08);color:rgba(255,255,255,.82);transition:background-color .18s ease;
}
.footer-social span:hover{background:rgba(0,196,140,.28);color:#fff}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.3px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.72)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* Offcanvas mobile nav */
.offcanvas.offcanvas-end{max-width:88vw;width:360px;background:var(--surface)}
.m-nav-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line)}
.m-nav-list{padding:12px 20px;display:grid;gap:4px}
.m-nav-list a{display:block;padding:12px 12px;border-radius:10px;color:var(--text);font-size:15.5px;font-weight:500}
.m-nav-list a:hover{background:var(--brand-soft);color:var(--brand-dark)}
.m-nav-list a.active{background:var(--brand-soft);color:var(--brand-dark);font-weight:600}
.m-groups{padding:8px 20px 20px}
.m-groups .accordion-item{border:0;border-top:1px solid var(--line)}
.m-groups .accordion-button{
  background:transparent;box-shadow:none;font-size:14px;font-weight:600;color:var(--muted);
  padding:14px 0;
}
.m-groups .accordion-button:not(.collapsed){color:var(--brand-dark);background:transparent;box-shadow:none}
.m-groups .accordion-body{padding:0 0 14px;display:grid;gap:10px}
.m-groups .accordion-body a{font-size:14.5px;color:var(--text)}
.m-nav-cta{padding:16px 20px;border-top:1px solid var(--line);position:sticky;bottom:0;background:var(--surface)}
.m-nav-cta .btn-brand{width:100%}

/* ============ Responsive ============ */
@media (min-width:1400px){
  body .container{max-width:1240px}
}
@media (max-width:1199.98px){
  .nav-list{gap:0}
  .nav-link{padding:9px 10px;font-size:14.5px}
  .mega-panel{width:680px}
  .mega-grid{grid-template-columns:1fr 1fr;gap:20px}
  .mega-col.entry{grid-column:span 2}
  .feature-row{gap:26px}
}
@media (max-width:991.98px){
  .nav-desktop,.nav-actions .btn-brand,.mega-wrap{display:none}
  .nav-toggle{display:grid}
  .nav-actions .icon-btn{display:none}
  .hero-inner{grid-template-columns:1fr;gap:28px;padding:44px 0;min-height:340px}
  .hero-media img{height:230px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .section{padding:64px 0}
  .rank-item{grid-template-columns:44px 1fr;grid-auto-flow:row;gap:10px 14px}
  .rank-item .badge-soft,.rank-item .badge-hot{justify-self:start}
  .ranks-side{display:flex;gap:8px;flex-wrap:wrap}
}
@media (max-width:767.98px){
  body{padding-top:64px}
  .header-inner{height:64px}
  body .container{padding-left:20px;padding-right:20px}
  .section{padding:48px 0}
  .feature-row{grid-template-columns:1fr;gap:20px;padding:20px}
  .feature-row:nth-child(even) .feature-media{order:0}
  .feature-row:nth-child(even) .feature-body{order:0}
  .feature-media img{height:200px}
  .myth-item{grid-template-columns:1fr}
  .myth-wrong{border-right:0;border-bottom:1px solid var(--line)}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn-brand,.cta-actions .btn-ghost{flex:1 1 auto}
  .rank-item{padding:16px 18px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-desc{max-width:none}
  .footer-bottom{justify-content:flex-start}
}
@media (max-width:575.98px){
  h1{font-size:28px}
  h2{font-size:22px}
  h3{font-size:18px}
  body .container{padding-left:16px;padding-right:16px}
  .hero-sub{font-size:15px}
  .hero-actions{width:100%}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%}
  .hero-facts{gap:14px}
  .hero-facts li{font-size:12.5px}
  .section-head p{font-size:14.5px}
  .rank-no{font-size:18px}
  .faq .accordion-button{font-size:15.5px;padding:18px 2px}
  .faq .accordion-body{font-size:14.5px}
  .cta-band{padding:52px 0}
}