/* roulang page: index */
:root {
  --bg: #F6F5F1;
  --card: #FFFFFF;
  --surface: #ECEAE4;
  --text-primary: #1B2A26;
  --text-secondary: #4A5C57;
  --brand: #1F4A47;
  --brand-hover: #163A38;
  --accent: #B08D57;
  --accent-hover: #9A7A47;
  --success: #2E7D5B;
  --warning: #C2482F;
  --border: #E2DED6;
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow: 0 10px 30px rgba(27,42,38,.08);
  --shadow-hover: 0 16px 40px rgba(27,42,38,.14);
  --font-stack: 'PingFang SC','Microsoft YaHei','Noto Sans SC',-apple-system,BlinkMacSystemFont,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font-stack);background:var(--bg);color:var(--text-primary);line-height:1.75;font-size:15px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none;transition:all .2s ease-out}
img{max-width:100%;height:auto;display:block}
button,input,select,textarea{font-family:inherit;border:none;outline:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-title{display:flex;align-items:center;gap:14px;margin-bottom:48px}
.section-title .bar{width:4px;height:28px;background:var(--brand);border-radius:2px}
.section-title h2{font-size:28px;font-weight:700;letter-spacing:.5px;color:var(--text-primary)}
.section-title .link-more{margin-left:auto;font-size:14px;color:var(--text-secondary);display:inline-flex;align-items:center;gap:6px}
.section-title .link-more:hover{color:var(--accent-hover)}
@media(max-width:768px){
  .section{padding:64px 0}
  .section-title h2{font-size:22px}
}

/* Top bar */
.topbar{background:var(--brand);color:#fff;font-size:13px;height:36px;display:flex;align-items:center}
.topbar .inner{display:flex;align-items:center;justify-content:space-between;width:100%}
.topbar a{color:rgba(255,255,255,.88);font-size:12px;padding:0 8px}
.topbar a:hover{color:var(--accent)}
.topbar .domain-text{font-weight:600;letter-spacing:.3px}
.topbar .divider{opacity:.35;margin:0 8px}
.topbar .actions{display:flex;align-items:center}
@media(max-width:640px){
  .topbar .actions a:not(.consult-link){display:none}
  .topbar .domain-text{font-size:12px}
}

/* Header / Nav */
.site-header{background:var(--card);border-top:2px solid var(--accent);position:sticky;top:0;z-index:100;box-shadow:0 2px 12px rgba(27,42,38,.05)}
.nav-wrap{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-logo{width:40px;height:40px;border-radius:10px;background:var(--brand);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.brand-logo svg{width:22px;height:22px;stroke:var(--accent);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text .brand-main{font-size:17px;font-weight:700;color:var(--text-primary);letter-spacing:.5px}
.brand-text .brand-sub{font-size:10px;color:var(--text-secondary);letter-spacing:1.5px;margin-top:2px}
.nav-desktop{display:flex;align-items:center;gap:4px;list-style:none}
.nav-desktop li a{display:block;padding:8px 14px;font-size:15px;font-weight:500;color:var(--text-secondary);border-bottom:2px solid transparent;border-radius:4px 4px 0 0}
.nav-desktop li a:hover{color:var(--brand)}
.nav-desktop li.active a{color:var(--brand);font-weight:600;border-bottom-color:var(--accent)}
.nav-cta{display:inline-flex;align-items:center;gap:6px;background:var(--accent);color:var(--text-primary);font-size:14px;font-weight:600;padding:10px 22px;border-radius:12px;transition:all .2s ease-out;flex-shrink:0}
.nav-cta:hover{background:var(--accent-hover);color:#fff;transform:translateY(-2px)}
.menu-toggle{display:none;width:40px;height:40px;border-radius:10px;background:var(--bg);color:var(--brand);font-size:20px;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0}
.mobile-menu{display:none;position:fixed;top:36px;left:0;right:0;bottom:0;background:var(--card);z-index:99;padding:24px;overflow-y:auto;box-shadow:0 20px 60px rgba(27,42,38,.15)}
.mobile-menu.open{display:block}
.mobile-menu a.mobile-link{display:block;padding:16px 8px;font-size:17px;font-weight:500;color:var(--text-primary);border-bottom:1px solid var(--border)}
.mobile-menu a.mobile-link:hover{color:var(--brand);padding-left:16px}
.mobile-menu a.mobile-link.active{color:var(--brand);font-weight:700;border-left:3px solid var(--accent)}
.mobile-menu .mobile-cta{display:block;margin-top:32px;text-align:center;background:var(--accent);color:var(--text-primary);font-weight:600;padding:14px 24px;border-radius:12px}
@media(max-width:1024px){
  .nav-desktop{display:none}
  .nav-cta{display:none}
  .menu-toggle{display:flex}
  .site-header{position:sticky;top:0}
  .mobile-menu{top:108px}
}
@media(max-width:640px){
  .mobile-menu{top:36px}
  .brand-text .brand-main{font-size:16px}
}

/* Hero */
.hero{position:relative;background:linear-gradient(115deg,rgba(246,245,241,.96) 0%,rgba(246,245,241,.88) 60%,rgba(246,245,241,.94) 100%),url('/assets/images/backpic/back-1.webp') center/cover no-repeat;padding:80px 0 88px}
.hero::after{content:'';position:absolute;bottom:0;left:0;right:0;height:80px;background:linear-gradient(180deg,transparent,var(--bg))}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;position:relative;z-index:2}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(176,141,87,.15);border:1px solid rgba(176,141,87,.35);color:var(--accent-hover);font-size:12px;font-weight:500;padding:6px 16px;border-radius:999px;margin-bottom:20px;letter-spacing:.5px}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}
.hero-grid h1{font-size:42px;line-height:1.2;font-weight:800;color:var(--text-primary);margin-bottom:18px;letter-spacing:-.5px}
.hero-grid h1 .gold{color:var(--accent-hover)}
.hero-sub{font-size:16px;line-height:1.8;color:var(--text-secondary);max-width:520px;margin-bottom:32px}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:36px}
.btn-primary{display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:var(--text-primary);font-size:15px;font-weight:600;padding:12px 28px;border-radius:14px;transition:all .2s ease-out;box-shadow:0 4px 16px rgba(176,141,87,.3)}
.btn-primary:hover{background:var(--accent-hover);color:#fff;transform:translateY(-2px);box-shadow:0 8px 24px rgba(176,141,87,.42)}
.btn-primary svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.btn-outline{display:inline-flex;align-items:center;gap:8px;background:transparent;border:1.5px solid var(--brand);color:var(--brand);font-size:15px;font-weight:500;padding:12px 28px;border-radius:14px;transition:all .2s ease-out}
.btn-outline:hover{background:var(--brand);color:#fff;transform:translateY(-2px)}
.hero-trust{display:flex;gap:24px;flex-wrap:wrap}
.trust-item{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--text-secondary)}
.trust-item svg{width:16px;height:16px;stroke:var(--success);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

.metrics-dash{display:grid;grid-template-columns:1fr 1fr;gap:18px;position:relative}
.metrics-dash::before{content:'';position:absolute;top:50%;left:50%;width:300px;height:300px;transform:translate(-50%,-50%);background:radial-gradient(circle,rgba(31,74,71,.06) 0%,transparent 70%);pointer-events:none;border-radius:50%}
.metric-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:22px 24px;position:relative;overflow:hidden;box-shadow:var(--shadow);transition:all .25s ease-out}
.metric-card::before{content:'';position:absolute;top:0;left:0;width:40px;height:2px;background:var(--accent);border-radius:0 0 4px 0}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.metric-value{font-size:40px;font-weight:700;line-height:1.15;color:var(--text-primary);font-variant-numeric:tabular-nums;letter-spacing:-1px}
.metric-label{font-size:13px;color:var(--text-secondary);margin-top:4px}
.metric-trend{display:inline-flex;align-items:center;gap:4px;font-size:12px;color:var(--success);margin-top:8px}
.metric-trend.down{color:var(--accent-hover)}
.metric-trend svg{width:12px;height:12px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
@media(max-width:768px){
  .hero{padding:48px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-grid h1{font-size:30px}
  .metric-value{font-size:32px}
  .metrics-dash{gap:12px}
  .nav-wrap{height:64px}
}

/* Services */
.services-bg{background:var(--card);border-radius:24px;padding:64px;box-shadow:var(--shadow)}
.service-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}
.service-col{display:flex;flex-direction:column;gap:24px}
.service-card{background:var(--bg);border:1px solid var(--border);border-radius:16px;padding:32px;position:relative;overflow:hidden;transition:all .25s ease-out;display:flex;flex-direction:column}
.service-card:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:var(--shadow-hover);background:#fff}
.service-card.large{padding:36px 32px}
.service-card.small{padding:24px}
.service-icon{width:48px;height:48px;border-radius:14px;background:rgba(31,74,71,.1);display:flex;align-items:center;justify-content:center;margin-bottom:18px;transition:all .25s ease-out}
.service-card:hover .service-icon{background:var(--brand)}
.service-icon svg{width:24px;height:24px;stroke:var(--brand);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:all .25s ease-out}
.service-card:hover .service-icon svg{stroke:var(--accent)}
.service-card h3{font-size:19px;font-weight:600;margin-bottom:10px;color:var(--text-primary)}
.service-card.small h3{font-size:17px}
.service-card p{font-size:14px;line-height:1.7;color:var(--text-secondary);margin-bottom:20px}
.service-card .service-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.service-card .service-link:hover{color:var(--accent-hover);gap:10px}
.service-card .service-link svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
@media(max-width:768px){
  .services-bg{padding:32px 20px}
  .service-grid{grid-template-columns:1fr}
  .service-card{padding:24px}
}

/* Comparison */
.compare-grid{display:grid;grid-template-columns:1fr 56px 1fr;align-items:stretch;gap:0}
.compare-card{background:var(--surface);border-radius:16px;padding:32px;border:1px solid transparent}
.compare-card.bad{background:var(--surface)}
.compare-card.good{background:var(--card);border:2px solid var(--brand);box-shadow:var(--shadow)}
.compare-card.good:hover{border-color:var(--accent)}
.compare-card h3{font-size:16px;font-weight:600;margin-bottom:20px;display:flex;align-items:center;gap:10px}
.compare-card ul{list-style:none;display:flex;flex-direction:column;gap:12px}
.compare-card ul li{display:flex;align-items:flex-start;gap:10px;font-size:14px;line-height:1.65;color:var(--text-secondary)}
.compare-card.good ul li{color:var(--text-primary)}
.compare-card .icon-x{flex-shrink:0;width:18px;height:18px;border-radius:50%;background:rgba(194,72,47,.12);display:flex;align-items:center;justify-content:center;color:var(--warning);font-size:11px;margin-top:2px}
.compare-card .icon-check{flex-shrink:0;width:18px;height:18px;border-radius:50%;background:rgba(46,125,91,.12);display:flex;align-items:center;justify-content:center;color:var(--success);font-size:11px;margin-top:2px}
.vs-badge{display:flex;align-items:center;justify-content:center}
.vs-badge span{width:44px;height:44px;border-radius:50%;background:var(--card);border:2px solid var(--accent);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:var(--accent-hover);box-shadow:0 4px 16px rgba(176,141,87,.25)}
.stats-band{margin-top:48px;background:var(--brand);border-radius:24px;padding:40px 48px;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative;overflow:hidden}
.stats-band::after{content:'';position:absolute;top:-60px;right:-40px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.03)}
.stats-item{text-align:center;position:relative;z-index:1}
.stats-item .value{font-size:40px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;line-height:1.2}
.stats-item .label{font-size:13px;color:rgba(255,255,255,.65);margin-top:6px}
.stats-item+.stats-item{border-left:1px solid rgba(255,255,255,.12)}
@media(max-width:768px){
  .compare-grid{grid-template-columns:1fr;gap:16px}
  .vs-badge{transform:rotate(90deg);margin:4px 0}
  .stats-band{grid-template-columns:1fr;gap:28px;padding:32px 24px}
  .stats-item+.stats-item{border-left:none;border-top:1px solid rgba(255,255,255,.12);padding-top:24px}
}

/* Experience */
.experience-grid{display:flex;flex-direction:column;gap:40px}
.exp-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.exp-img{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--shadow)}
.exp-img img{width:100%;height:auto;object-fit:cover;aspect-ratio:16/10.5}
.exp-img::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 60%,rgba(27,42,38,.12));border-radius:20px}
.exp-img .exp-tag{position:absolute;top:16px;left:16px;z-index:2;background:rgba(255,255,255,.92);border-radius:999px;font-size:12px;font-weight:600;color:var(--brand);padding:5px 14px;backdrop-filter:blur(4px)}
.exp-text h3{font-size:22px;font-weight:650;margin-bottom:14px;color:var(--text-primary)}
.exp-text p{font-size:15px;line-height:1.8;color:var(--text-secondary)}
.exp-list{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.exp-list li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-primary)}
.exp-list li::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--accent);flex-shrink:0}
@media(max-width:768px){
  .exp-row{grid-template-columns:1fr;gap:24px}
  .exp-row:nth-child(2) .exp-img{order:-1}
}

/* News */
.news-shell{background:var(--card);border-radius:24px;box-shadow:var(--shadow);overflow:hidden}
.news-list{list-style:none;display:flex;flex-direction:column}
.news-item{display:flex;align-items:center;gap:24px;padding:24px 32px;border-bottom:1px solid var(--border);transition:all .2s ease-out;position:relative}
.news-item:last-child{border-bottom:none}
.news-item:hover{background:var(--bg)}
.news-item:hover .news-arrow{transform:translateX(4px);color:var(--accent-hover)}
.news-date{width:80px;flex-shrink:0;background:var(--bg);border-radius:12px;padding:12px 8px;text-align:center;font-size:13px;color:var(--text-secondary);font-weight:500;line-height:1.4;border:1px solid var(--border)}
.news-main{flex:1;min-width:0}
.news-cat{display:inline-block;font-size:12px;font-weight:500;color:var(--accent-hover);background:rgba(176,141,87,.1);padding:2px 10px;border-radius:999px;margin-bottom:6px}
.news-main h3{font-size:16px;font-weight:600;color:var(--text-primary);margin-bottom:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.news-main p{font-size:13px;color:var(--text-secondary);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-arrow{flex-shrink:0;width:36px;height:36px;border-radius:50%;background:var(--bg);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--text-secondary);font-size:16px;transition:all .2s ease-out}
.news-empty{padding:60px 32px;text-align:center;color:var(--text-secondary);font-size:14px}
.news-empty{display:flex;flex-direction:column;align-items:center;gap:12px}
.news-empty-icon{width:48px;height:48px;border-radius:50%;background:var(--bg);border:1px dashed var(--border);display:flex;align-items:center;justify-content:center;font-size:22px;color:var(--accent)}
@media(max-width:768px){
  .news-item{flex-wrap:wrap;gap:14px;padding:20px}
  .news-date{width:70px}
  .news-main h3{white-space:normal}
}

/* FAQ */
.faq-wrap{max-width:840px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--card);border-radius:12px;box-shadow:0 2px 8px rgba(27,42,38,.04);overflow:hidden}
.faq-item.open{box-shadow:var(--shadow)}
.faq-q{width:100%;display:flex;align-items:center;gap:14px;padding:16px 20px;background:var(--card);cursor:pointer;text-align:left;transition:background .2s}
.faq-q:hover{background:var(--bg)}
.faq-q .q-mark{width:28px;height:28px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;flex-shrink:0}
.faq-q .q-text{flex:1;font-size:16px;font-weight:600;color:var(--text-primary)}
.faq-q .q-icon{width:24px;height:24px;border-radius:50%;border:1.5px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--text-secondary);font-size:16px;transition:all .25s ease-out;flex-shrink:0}
.faq-item.open .q-icon{transform:rotate(45deg);border-color:var(--accent);color:var(--accent-hover)}
.faq-a{display:none;padding:4px 20px 20px 62px;font-size:14px;line-height:1.7;color:var(--text-secondary);background:transparent}
.faq-item.open .faq-a{display:block}
.faq-a::before{content:'';display:block;width:4px;height:20px;background:var(--brand);border-radius:2px;margin-bottom:8px}
@media(max-width:640px){
  .faq-q .q-text{font-size:15px}
  .faq-a{padding:4px 16px 16px 54px}
}

/* CTA Form */
.cta-section{background:var(--brand);padding:96px 0;position:relative;overflow:hidden}
.cta-section::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at 75% 20%,rgba(176,141,87,.12) 0%,transparent 50%),radial-gradient(circle at 20% 80%,rgba(255,255,255,.04) 0%,transparent 40%)}
.cta-inner{position:relative;z-index:1;max-width:640px;margin:0 auto;text-align:center}
.cta-inner h2{font-size:32px;font-weight:700;color:#fff;margin-bottom:12px}
.cta-inner .cta-sub{font-size:14px;color:rgba(255,255,255,.65);margin-bottom:40px}
.form-card{background:var(--card);border-radius:24px;padding:32px;text-align:left;box-shadow:0 20px 60px rgba(0,0,0,.2)}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:13px;font-weight:600;color:var(--text-primary);margin-bottom:6px}
.form-control{width:100%;height:44px;border:1px solid var(--border);border-radius:10px;padding:0 14px;font-size:14px;color:var(--text-primary);background:var(--bg);transition:all .2s ease-out}
.form-control:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(176,141,87,.18);background:#fff}
textarea.form-control{height:auto;padding:12px 14px;resize:vertical;min-height:80px}
.form-select{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%234A5C57' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center}
.form-submit{width:100%;height:48px;background:var(--accent);color:var(--text-primary);font-size:15px;font-weight:600;border-radius:12px;display:flex;align-items:center;justify-content:center;gap:8px;transition:all .2s ease-out;cursor:pointer}
.form-submit:hover{background:var(--accent-hover);color:#fff}
.form-submit svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.privacy-note{margin-top:16px;font-size:12px;color:var(--text-secondary);display:flex;align-items:center;justify-content:center;gap:6px}
.privacy-note svg{width:13px;height:13px;stroke:var(--text-secondary);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
@media(max-width:640px){
  .cta-section{padding:64px 0}
  .cta-inner h2{font-size:26px}
  .form-card{padding:24px}
}

/* Footer */
.site-footer{background:#0F2926;color:#CDD8D5;font-size:14px}
.footer-main{display:grid;grid-template-columns:1.2fr .8fr .8fr 1fr;gap:48px;padding:64px 0 48px}
.footer-brand .footer-logo{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .footer-logo .footer-logo-icon{width:36px;height:36px;border-radius:10px;background:var(--brand);display:flex;align-items:center;justify-content:center}
.footer-brand .footer-logo .footer-logo-icon svg{width:18px;height:18px;stroke:var(--accent);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.footer-brand .footer-logo .footer-logo-text{font-size:16px;font-weight:700;color:#fff}
.footer-brand p{font-size:13px;line-height:1.8;color:rgba(205,216,213,.65)}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:20px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-col ul li a{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:rgba(205,216,213,.6);transition:all .2s}
.footer-col ul li a:hover{color:var(--accent);padding-left:4px}
.footer-col ul li a::before{content:'›';color:var(--accent);font-size:14px}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:rgba(205,216,213,.6)}
.footer-contact li svg{width:14px;height:14px;stroke:var(--accent);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;margin-top:3px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.07);background:#0A1F1C;padding:18px 0;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:rgba(205,216,213,.4)}
.footer-bottom .copyright a{display:inline-flex;align-items:center;gap:6px}
.footer-bottom .copyright a:hover{color:var(--accent)}
@media(max-width:768px){
  .footer-main{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 40px}
}
@media(max-width:520px){
  .footer-main{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px;text-align:center}
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
  :root {
    --bg: #F6F5F1;
    --card: #FFFFFF;
    --bg-sub: #ECEAE4;
    --text-main: #1B2A26;
    --text-sub: #4A5C57;
    --primary: #1F4A47;
    --primary-hover: #163A38;
    --accent: #B08D57;
    --accent-hover: #9A7A47;
    --success: #2E7D5B;
    --warning: #C2482F;
    --border: #E2DED6;
    --radius-card: 16px;
    --radius-box: 24px;
    --radius-btn: 12px;
    --radius-tag: 999px;
    --shadow-soft: 0 10px 30px rgba(27,42,38,.08);
    --shadow-hover: 0 16px 40px rgba(27,42,38,.14);
    --transition: all .2s ease-out;
  }

  /* ===== Reset / Base ===== */
  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; font-size: 16px; }
  body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg);
    color: var(--text-main);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
  a { color: var(--primary); text-decoration: none; transition: var(--transition); }
  a:hover { color: var(--primary-hover); }
  img { max-width: 100%; height: auto; display: block; }
  ul, ol { list-style: none; }
  button, input, select, textarea { font-family: inherit; font-size: inherit; line-height: inherit; }
  .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

  /* ===== 顶部信息条 ===== */
  .topbar {
    background: var(--primary);
    color: #fff;
    font-size: 13px;
    height: 36px;
    display: flex;
    align-items: center;
    position: relative;
    z-index: 50;
  }
  .topbar .container { display: flex; align-items: center; justify-content: space-between; }
  .topbar-links { display: flex; align-items: center; gap: 20px; font-size: 12px; }
  .topbar-links a { color: rgba(255,255,255,.9); }
  .topbar-links a:hover { color: var(--accent); }
  .topbar-sep { opacity: .5; }

  /* ===== 主导航 ===== */
  .site-header {
    background: var(--card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 20px rgba(27,42,38,.04);
  }
  .site-header::before {
    content: '';
    display: block;
    height: 2px;
    background: var(--accent);
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
  }
  .nav-wrap {
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
  }
  .brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
  .brand-logo {
    width: 40px; height: 40px;
    background: var(--primary);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
  }
  .brand-logo svg { width: 24px; height: 24px; fill: none; stroke: var(--accent); stroke-width: 1.6; }
  .brand-text { display: flex; flex-direction: column; line-height: 1.2; }
  .brand-main { font-size: 17px; font-weight: 700; color: var(--text-main); letter-spacing: .02em; }
  .brand-sub { font-size: 10px; letter-spacing: .12em; color: var(--text-sub); }
  .nav-desktop { display: flex; align-items: center; gap: 28px; }
  .nav-desktop a {
    font-size: 15px;
    color: var(--text-sub);
    font-weight: 500;
    padding: 8px 2px;
    position: relative;
    white-space: nowrap;
  }
  .nav-desktop a:hover { color: var(--primary); }
  .nav-desktop li.active a { color: var(--primary); font-weight: 600; }
  .nav-desktop li.active a::after {
    content: '';
    position: absolute;
    left: 0; right: 0; bottom: 0;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
  }
  .nav-cta {
    background: var(--accent);
    color: var(--text-main);
    font-weight: 600;
    font-size: 14px;
    padding: 10px 22px;
    border-radius: var(--radius-btn);
    transition: var(--transition);
    white-space: nowrap;
    flex-shrink: 0;
  }
  .nav-cta:hover { background: var(--accent-hover); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(176,141,87,.3); }
  .menu-toggle { display: none; background: none; border: none; color: var(--text-main); cursor: pointer; padding: 8px; }

  /* 移动端菜单 */
  .mobile-menu {
    display: none;
    position: fixed;
    top: 108px;
    left: 0; right: 0; bottom: 0;
    background: var(--card);
    z-index: 99;
    padding: 40px 24px;
    flex-direction: column;
    gap: 8px;
    box-shadow: 0 20px 40px rgba(27,42,38,.12);
    overflow-y: auto;
  }
  .mobile-menu.open { display: flex; }
  .mobile-menu a {
    font-size: 17px;
    color: var(--text-main);
    padding: 14px 12px;
    border-radius: 10px;
    display: block;
  }
  .mobile-menu a:hover { background: var(--bg); }
  .mobile-menu li.active a { background: var(--bg); color: var(--primary); font-weight: 600; }
  .mobile-menu .nav-cta { margin-top: 20px; text-align: center; display: block; }

  /* ===== 通用板块标题 ===== */
  .section-title-wrap { display: flex; align-items: flex-start; gap: 14px; margin-bottom: 40px; }
  .section-bar { width: 4px; height: 28px; background: var(--primary); border-radius: 2px; flex-shrink: 0; }
  .section-title { font-size: 28px; font-weight: 700; color: var(--text-main); line-height: 1.25; }
  .section-sub { font-size: 15px; color: var(--text-sub); margin-top: 6px; }

  /* ===== Hero ===== */
  .category-hero {
    position: relative;
    padding: 72px 0 64px;
    background: linear-gradient(135deg, #f6f5f1 0%, #f0ece4 100%);
    border-bottom: 1px solid var(--border);
    overflow: hidden;
  }
  .category-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-3.png');
    background-size: cover;
    background-position: center;
    opacity: .18;
    z-index: 0;
  }
  .category-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(246,245,241,.92) 0%, rgba(246,245,241,.65) 60%, rgba(246,245,241,.25) 100%);
    z-index: 1;
  }
  .category-hero .container { position: relative; z-index: 2; }
  .hero-badge {
    display: inline-flex;
    align-items: center;
    background: rgba(176,141,87,.14);
    color: #8a6a42;
    font-size: 12px;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: var(--radius-tag);
    border: 1px solid rgba(176,141,87,.28);
    letter-spacing: .04em;
    margin-bottom: 20px;
  }
  .hero-title {
    font-size: 42px;
    font-weight: 800;
    line-height: 1.15;
    color: var(--text-main);
    max-width: 680px;
  }
  .hero-title .accent-text { color: var(--accent); }
  .hero-desc {
    font-size: 16px;
    color: var(--text-sub);
    max-width: 640px;
    margin-top: 18px;
    line-height: 1.8;
  }
  .hero-actions { display: flex; gap: 14px; margin-top: 32px; flex-wrap: wrap; }
  .btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent);
    color: var(--text-main) !important;
    font-weight: 600;
    padding: 13px 28px;
    border-radius: var(--radius-btn);
    transition: var(--transition);
    box-shadow: 0 6px 20px rgba(176,141,87,.25);
  }
  .btn-primary:hover { background: var(--accent-hover); color: #fff !important; transform: translateY(-2px); box-shadow: 0 10px 28px rgba(176,141,87,.35); }
  .btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: var(--primary) !important;
    border: 1.5px solid var(--primary);
    font-weight: 600;
    padding: 12px 26px;
    border-radius: var(--radius-btn);
    transition: var(--transition);
  }
  .btn-outline:hover { background: rgba(31,74,71,.06); color: var(--primary-hover) !important; transform: translateY(-2px); }
  .hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 48px;
    max-width: 720px;
  }
  .hero-stat {
    background: var(--card);
    border-radius: var(--radius-card);
    padding: 20px 22px;
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
  }
  .hero-stat::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 2px;
    background: var(--accent);
  }
  .hero-stat-num {
    font-size: 34px;
    font-weight: 700;
    color: var(--primary);
    font-variant-numeric: tabular-nums;
    line-height: 1.2;
  }
  .hero-stat-label { font-size: 13px; color: var(--text-sub); margin-top: 6px; }

  /* ===== 分类简介 ===== */
  .cat-intro { padding: 80px 0; }
  .cat-intro-card {
    background: var(--card);
    border-radius: var(--radius-box);
    border: 1px solid var(--border);
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr 1fr;
    box-shadow: var(--shadow-soft);
  }
  .cat-intro-img { width: 100%; height: 100%; min-height: 320px; object-fit: cover; }
  .cat-intro-content { padding: 40px 40px; display: flex; flex-direction: column; justify-content: center; }
  .cat-intro-content h2 { font-size: 24px; font-weight: 700; color: var(--text-main); margin-bottom: 16px; }
  .cat-intro-content p { font-size: 15px; line-height: 1.8; color: var(--text-sub); margin-bottom: 16px; }
  .cat-intro-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
  .cat-tag {
    background: rgba(31,74,71,.06);
    color: var(--primary);
    font-size: 12px;
    font-weight: 600;
    padding: 5px 14px;
    border-radius: var(--radius-tag);
    border: 1px solid rgba(31,74,71,.15);
    letter-spacing: .04em;
  }

  /* ===== 代表性条目 ===== */
  .cat-cards { padding: 80px 0; background: var(--card); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
  .cards-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
  .cards-grid .card-wide { grid-column: 1 / -1; }
  .service-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    box-shadow: 0 2px 8px rgba(27,42,38,.03);
  }
  .service-card:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: var(--shadow-hover); }
  .service-card-img { width: 100%; height: 190px; object-fit: cover; }
  .service-card-body { padding: 26px 28px; display: flex; flex-direction: column; flex: 1; }
  .service-card-icon {
    width: 48px; height: 48px;
    background: rgba(31,74,71,.08);
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 16px;
    transition: var(--transition);
  }
  .service-card-icon svg { width: 24px; height: 24px; stroke: var(--primary); fill: none; stroke-width: 1.8; }
  .service-card:hover .service-card-icon { background: var(--primary); }
  .service-card:hover .service-card-icon svg { stroke: var(--accent); }
  .service-card h3 { font-size: 18px; font-weight: 600; color: var(--text-main); }
  .service-card p { font-size: 14px; color: var(--text-sub); line-height: 1.65; margin-top: 8px; flex: 1; }
  .card-link {
    margin-top: 16px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }
  .card-link svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 2; transition: var(--transition); }
  .service-card:hover .card-link { color: var(--accent-hover); }
  .service-card:hover .card-link svg { transform: translateX(4px); }
  .card-wide .service-card-body { flex-direction: row; gap: 32px; align-items: center; }
  .card-wide .service-card-icon { flex-shrink: 0; }
  .card-wide .service-card-body h3 { font-size: 20px; }
  .card-wide .service-card-body p { margin-top: 6px; max-width: 560px; }
  .card-wide .card-link { margin-top: 0; white-space: nowrap; }

  /* ===== 数据指标条 ===== */
  .stats-bar {
    background: var(--primary);
    border-radius: var(--radius-box);
    padding: 40px 48px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    margin-top: 80px;
    color: #fff;
    position: relative;
    overflow: hidden;
  }
  .stats-bar::before {
    content: '';
    position: absolute;
    top: -40px; right: -40px;
    width: 160px; height: 160px;
    border: 2px solid rgba(176,141,87,.2);
    border-radius: 50%;
  }
  .stats-bar-item { text-align: center; position: relative; z-index: 1; }
  .stats-bar-num { font-size: 38px; font-weight: 700; font-variant-numeric: tabular-nums; color: #fff; line-height: 1.2; }
  .stats-bar-label { font-size: 13px; color: rgba(255,255,255,.75); margin-top: 4px; }

  /* ===== 服务流程 ===== */
  .cat-flow { padding: 80px 0; }
  .flow-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
  .flow-grid::before {
    content: '';
    position: absolute;
    top: 28px; left: 8%; right: 8%;
    height: 2px;
    background: linear-gradient(90deg, var(--border) 0%, var(--border) 100%);
    z-index: 0;
  }
  .flow-step {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 32px 24px;
    text-align: center;
    position: relative;
    z-index: 1;
    transition: var(--transition);
  }
  .flow-step:hover { border-color: var(--accent); box-shadow: var(--shadow-hover); transform: translateY(-4px); }
  .flow-num {
    width: 56px; height: 56px;
    background: var(--primary);
    color: var(--accent);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 20px; font-weight: 700;
    margin: 0 auto 18px;
    border: 3px solid #fff;
    box-shadow: 0 4px 12px rgba(31,74,71,.25);
  }
  .flow-step h3 { font-size: 16px; font-weight: 600; color: var(--text-main); margin-bottom: 8px; }
  .flow-step p { font-size: 13px; color: var(--text-sub); line-height: 1.6; }

  /* ===== 适用场景 ===== */
  .cat-scenarios { padding: 80px 0; background: #f0ede7; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
  .scenario-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 24px; }
  .scenario-card {
    background: var(--card);
    border-radius: var(--radius-card);
    padding: 32px 28px;
    border: 1px solid var(--border);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
  }
  .scenario-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 3px;
    background: linear-gradient(90deg, var(--accent), transparent);
    opacity: 0;
    transition: var(--transition);
  }
  .scenario-card:hover::before { opacity: 1; }
  .scenario-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(176,141,87,.4); }
  .scenario-icon {
    width: 52px; height: 52px;
    background: rgba(31,74,71,.08);
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 18px;
  }
  .scenario-icon svg { width: 26px; height: 26px; stroke: var(--primary); fill: none; stroke-width: 1.6; }
  .scenario-card h3 { font-size: 18px; font-weight: 600; color: var(--text-main); margin-bottom: 10px; }
  .scenario-card p { font-size: 14px; color: var(--text-sub); line-height: 1.7; }

  /* ===== FAQ ===== */
  .cat-faq { padding: 80px 0; }
  .faq-list { max-width: 800px; margin: 0 auto; }
  .faq-item {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    margin-bottom: 12px;
    overflow: hidden;
    transition: var(--transition);
  }
  .faq-item:hover { border-color: rgba(176,141,87,.45); }
  .faq-item.active { border-color: rgba(176,141,87,.6); box-shadow: var(--shadow-soft); }
  .faq-q {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 24px;
    cursor: pointer;
    user-select: none;
  }
  .faq-q-num {
    width: 28px; height: 28px;
    background: var(--accent);
    color: var(--text-main);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 13px; font-weight: 700;
    flex-shrink: 0;
  }
  .faq-q-text { font-size: 16px; font-weight: 600; color: var(--text-main); flex: 1; }
  .faq-q-icon {
    width: 24px; height: 24px;
    color: var(--text-sub);
    flex-shrink: 0;
    transition: var(--transition);
  }
  .faq-item.active .faq-q-icon { transform: rotate(45deg); color: var(--accent); }
  .faq-a {
    display: none;
    padding: 6px 24px 22px 66px;
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.75;
  }
  .faq-item.active .faq-a { display: block; }

  /* ===== CTA ===== */
  .cat-cta { padding: 64px 0 80px; }
  .cta-box {
    background: linear-gradient(135deg, #f6f5f1 0%, #f0e8da 100%);
    border: 2px solid rgba(176,141,87,.3);
    border-radius: var(--radius-box);
    padding: 56px 48px;
    text-align: center;
    position: relative;
    overflow: hidden;
  }
  .cta-box::before {
    content: '';
    position: absolute;
    top: -60px; right: -60px;
    width: 180px; height: 180px;
    border: 2px solid rgba(176,141,87,.15);
    border-radius: 50%;
  }
  .cta-box::after {
    content: '';
    position: absolute;
    bottom: -30px; left: 20%;
    width: 100px; height: 100px;
    border: 2px solid rgba(31,74,71,.08);
    border-radius: 50%;
  }
  .cta-box h2 { font-size: 28px; font-weight: 700; color: var(--text-main); position: relative; z-index: 1; }
  .cta-box p { font-size: 15px; color: var(--text-sub); margin-top: 12px; max-width: 560px; margin-left: auto; margin-right: auto; position: relative; z-index: 1; }
  .cta-actions { display: flex; gap: 14px; justify-content: center; margin-top: 28px; position: relative; z-index: 1; flex-wrap: wrap; }

  /* ===== 页脚 ===== */
  .site-footer { background: #0F2926; color: #CDD8D5; }
  .footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.4fr;
    gap: 48px;
    padding: 64px 24px 48px;
    max-width: 1200px;
    margin: 0 auto;
  }
  .footer-logo { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
  .footer-logo-icon {
    width: 38px; height: 38px;
    background: rgba(176,141,87,.2);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
  }
  .footer-logo-icon svg { width: 22px; height: 22px; fill: none; stroke: var(--accent); stroke-width: 1.6; }
  .footer-logo-text { font-size: 18px; font-weight: 700; color: #fff; }
  .footer-brand p { font-size: 13px; line-height: 1.7; color: #9db5b0; max-width: 260px; }
  .footer-col h4 { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 20px; }
  .footer-col ul { display: flex; flex-direction: column; gap: 10px; }
  .footer-col a { color: #9db5b0; font-size: 14px; transition: var(--transition); }
  .footer-col a:hover { color: var(--accent); }
  .footer-contact li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: #9db5b0; }
  .footer-contact svg { width: 18px; height: 18px; fill: none; stroke: var(--accent); stroke-width: 1.6; flex-shrink: 0; }
  .footer-bottom {
    background: #0A1F1C;
    padding: 20px 24px;
    border-top: 1px solid rgba(255,255,255,.06);
  }
  .footer-bottom .container { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
  .copyright { font-size: 13px; color: #78908b; }
  .footer-bottom span { font-size: 13px; color: #78908b; }

  /* ===== 响应式 ===== */
  @media (max-width: 1024px) {
    .nav-desktop { display: none; }
    .nav-cta { display: none; }
    .menu-toggle { display: block; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); }
    .cards-grid { grid-template-columns: 1fr; }
    .card-wide .service-card-body { flex-direction: column; align-items: flex-start; gap: 12px; }
    .flow-grid { grid-template-columns: repeat(2, 1fr); }
    .flow-grid::before { display: none; }
    .scenario-grid { grid-template-columns: 1fr 1fr; }
    .stats-bar { grid-template-columns: repeat(2, 1fr); padding: 32px; }
    .cat-intro-card { grid-template-columns: 1fr; }
    .cat-intro-img { min-height: 220px; }
    .footer-main { grid-template-columns: 1fr 1fr; gap: 32px; }
  }
  @media (max-width: 640px) {
    .container { padding: 0 18px; }
    .topbar-links a { display: none; }
    .topbar-links a:last-child { display: inline; }
    .hero-title { font-size: 32px; }
    .hero-stats { grid-template-columns: 1fr 1fr; }
    .scenario-grid { grid-template-columns: 1fr; }
    .flow-grid { grid-template-columns: 1fr; }
    .stats-bar { grid-template-columns: 1fr 1fr; padding: 24px; }
    .stats-bar-num { font-size: 28px; }
    .footer-main { grid-template-columns: 1fr; }
    .footer-bottom .container { flex-direction: column; justify-content: center; text-align: center; }
    .cat-intro-content { padding: 28px 24px; }
    .cta-box { padding: 40px 24px; }
    .cta-box h2 { font-size: 22px; }
    .hero-actions .btn-primary, .hero-actions .btn-outline { width: 100%; justify-content: center; }
  }

/* roulang page: article */
:root {
            --bg: #F6F5F1;
            --card: #FFFFFF;
            --sub-bg: #ECEAE4;
            --text-primary: #1B2A26;
            --text-secondary: #4A5C57;
            --text-light: #6B7C77;
            --brand: #1F4A47;
            --brand-hover: #163A38;
            --accent: #B08D57;
            --accent-hover: #9A7A47;
            --success: #2E7D5B;
            --warning: #C2482F;
            --border: #E2DED6;
            --footer-bg: #0F2926;
            --footer-deep: #0A1F1C;
            --radius-lg: 24px;
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-sm: 10px;
            --shadow: 0 10px 30px rgba(27, 42, 38, 0.08);
            --shadow-hover: 0 16px 40px rgba(27, 42, 38, 0.14);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background: var(--bg);
            color: var(--text-primary);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease-out, background-color 0.2s ease-out, border-color 0.2s ease-out, box-shadow 0.2s ease-out, transform 0.2s ease-out;
        }

        img {
            max-width: 100%;
            display: block;
        }

        button {
            font-family: inherit;
            cursor: pointer;
        }

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

        /* ===== 顶部信息条 ===== */
        .top-bar {
            background: var(--brand);
            height: 36px;
            display: flex;
            align-items: center;
            color: #fff;
            font-size: 13px;
        }

        .top-bar-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .top-bar-left {
            display: flex;
            align-items: center;
        }

        .top-bar-domain {
            font-weight: 500;
            letter-spacing: 0.02em;
        }

        .top-bar-divider {
            opacity: 0.4;
            margin: 0 12px;
        }

        .top-bar-tip {
            opacity: 0.8;
            font-size: 12px;
            white-space: nowrap;
        }

        .top-bar-actions {
            display: flex;
            align-items: center;
            gap: 18px;
            font-size: 12px;
        }

        .top-bar-actions a {
            color: rgba(255, 255, 255, 0.85);
            transition: color 0.2s;
        }

        .top-bar-actions a:hover {
            color: var(--accent);
        }

        .lang-switch {
            opacity: 0.7;
            cursor: default;
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .lang-switch::before {
            content: '';
            width: 0;
            height: 0;
            border-left: 4px solid rgba(255,255,255,0.6);
            border-top: 3px solid transparent;
            border-bottom: 3px solid transparent;
            margin-right: 2px;
        }

        @media (max-width: 640px) {
            .top-bar-tip,
            .top-bar-actions a:not(.top-bar-consult) {
                display: none;
            }
            .top-bar-actions a.top-bar-consult {
                display: inline;
            }
        }

        /* ===== 主导航 ===== */
        .site-header {
            background: #fff;
            height: 72px;
            border-top: 2px solid var(--accent);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(27, 42, 38, 0.04);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .nav-wrap {
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .brand-logo {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--brand);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: background-color 0.2s ease-out, transform 0.2s ease-out;
        }

        .brand:hover .brand-logo {
            background: var(--brand-hover);
            transform: translateY(-1px);
        }

        .brand-logo svg {
            width: 22px;
            height: 22px;
            fill: none;
            stroke: var(--accent);
            stroke-width: 1.5;
        }

        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }

        .brand-main {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.02em;
        }

        .brand-sub {
            font-size: 10px;
            font-weight: 500;
            color: var(--text-secondary);
            letter-spacing: 0.18em;
        }

        nav {
            flex: 1;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 32px;
            justify-content: center;
        }

        .nav-desktop li {
            position: relative;
        }

        .nav-desktop a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-primary);
            padding: 8px 2px;
            position: relative;
            white-space: nowrap;
        }

        .nav-desktop li.active a {
            color: var(--brand);
            font-weight: 600;
        }

        .nav-desktop li.active a::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -3px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .nav-desktop a:hover {
            color: var(--brand);
        }

        .nav-desktop a:hover::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -3px;
            height: 2px;
            background: rgba(176, 141, 87, 0.4);
            border-radius: 2px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--accent);
            color: var(--text-primary);
            font-size: 15px;
            font-weight: 600;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            transition: background-color 0.2s, transform 0.2s, box-shadow 0.2s;
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(176, 141, 87, 0.3);
        }

        .nav-cta:focus-visible {
            outline: 2px solid var(--accent-hover);
            outline-offset: 2px;
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            align-items: center;
            justify-content: center;
            transition: background-color 0.2s;
        }

        .menu-toggle:hover {
            background: var(--bg);
        }

        .menu-toggle:focus-visible {
            outline: 2px solid var(--brand);
        }

        @media (max-width: 1024px) {
            .nav-desktop,
            .nav-cta {
                display: none;
            }
            .menu-toggle {
                display: inline-flex;
            }
        }

        /* ===== 移动端下拉菜单 ===== */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 108px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            z-index: 99;
            padding: 32px 24px;
            overflow-y: auto;
            border-bottom: 3px solid var(--accent);
            box-shadow: 0 20px 50px rgba(27, 42, 38, 0.12);
        }

        .mobile-menu.open {
            display: block;
            animation: menuFadeIn 0.25s ease-out;
        }

        @keyframes menuFadeIn {
            from {
                opacity: 0;
                transform: translateY(-8px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .mobile-menu ul {
            list-style: none;
        }

        .mobile-menu li a {
            display: block;
            padding: 16px 0;
            font-size: 16px;
            font-weight: 500;
            border-bottom: 1px solid var(--border);
            color: var(--text-primary);
            transition: color 0.2s, padding-left 0.2s;
        }

        .mobile-menu li a:hover {
            color: var(--brand);
            padding-left: 6px;
        }

        .mobile-menu li.active a {
            color: var(--brand);
            font-weight: 600;
        }

        .mobile-menu .mobile-cta {
            margin-top: 28px;
            display: block;
            text-align: center;
            background: var(--accent);
            color: var(--text-primary);
            font-size: 16px;
            font-weight: 600;
            padding: 14px;
            border-radius: var(--radius-btn);
            box-shadow: 0 6px 16px rgba(176, 141, 87, 0.3);
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-bar {
            background: var(--bg);
            border-bottom: 1px solid var(--border);
            min-height: 48px;
            display: flex;
            align-items: center;
        }

        .breadcrumb-wrap {
            display: flex;
            align-items: center;
            font-size: 13px;
            color: var(--text-secondary);
            gap: 8px;
            flex-wrap: wrap;
            width: 100%;
        }

        .breadcrumb-wrap a {
            color: var(--text-secondary);
            transition: color 0.2s;
        }

        .breadcrumb-wrap a:hover {
            color: var(--brand);
        }

        .breadcrumb-sep {
            color: #C0BBB2;
            font-size: 12px;
        }

        .breadcrumb-current {
            color: var(--brand);
            font-weight: 500;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 360px;
            font-size: 13px;
        }

        @media (max-width: 640px) {
            .breadcrumb-current {
                max-width: 200px;
            }
        }

        /* ===== 文章头部 ===== */
        .article-header {
            padding: 56px 0 44px;
            background: #fff;
            border-bottom: 1px solid var(--border);
            position: relative;
        }

        .article-header::after {
            content: '';
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            bottom: -1px;
            width: 64px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px 3px 0 0;
        }

        .article-header .container {
            max-width: 820px;
            text-align: center;
        }

        .article-cat-tag {
            display: inline-flex;
            align-items: center;
            background: rgba(176, 141, 87, 0.12);
            color: var(--accent-hover);
            font-size: 12px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 999px;
            letter-spacing: 0.04em;
            margin-bottom: 20px;
            border: 1px solid rgba(176, 141, 87, 0.2);
        }

        .article-header h1 {
            font-size: 34px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 20px;
            letter-spacing: -0.01em;
            word-break: break-word;
        }

        .article-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            font-size: 13px;
            color: var(--text-secondary);
            flex-wrap: wrap;
        }

        .article-meta .meta-divider {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--border);
            flex-shrink: 0;
        }

        .article-meta span {
            display: inline-flex;
            align-items: center;
        }

        @media (max-width: 640px) {
            .article-header {
                padding: 40px 0 32px;
            }
            .article-header h1 {
                font-size: 26px;
                line-height: 1.4;
            }
            .article-meta {
                gap: 10px;
                font-size: 12px;
            }
            .article-meta .meta-divider {
                display: none;
            }
        }

        /* ===== 文章正文 ===== */
        .article-main {
            padding: 48px 0 72px;
        }

        .article-body {
            max-width: 720px;
            margin: 0 auto;
            background: #fff;
            border-radius: var(--radius-card);
            padding: 48px 56px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }

        .article-body::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent) 0%, var(--brand) 100%);
            opacity: 0.6;
        }

        .article-body p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-primary);
            margin-bottom: 24px;
        }

        .article-body p:last-child {
            margin-bottom: 0;
        }

        .article-body h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 40px 0 20px;
            padding-left: 14px;
            border-left: 4px solid var(--brand);
            line-height: 1.4;
        }

        .article-body h2:first-child {
            margin-top: 0;
        }

        .article-body h3 {
            font-size: 20px;
            font-weight: 600;
            margin: 32px 0 16px;
            color: var(--text-primary);
            line-height: 1.4;
        }

        .article-body h4 {
            font-size: 17px;
            font-weight: 600;
            margin: 28px 0 12px;
        }

        .article-body h5,
        .article-body h6 {
            font-size: 16px;
            font-weight: 600;
            margin: 24px 0 12px;
        }

        .article-body ul,
        .article-body ol {
            margin: 0 0 24px;
            padding-left: 24px;
        }

        .article-body ul {
            list-style: disc;
        }

        .article-body ol {
            list-style: decimal;
        }

        .article-body li {
            font-size: 15px;
            line-height: 1.85;
            margin-bottom: 8px;
            padding-left: 4px;
        }

        .article-body blockquote {
            background: #EDF3F1;
            border-left: 4px solid var(--brand);
            padding: 20px 24px;
            border-radius: 0 12px 12px 0;
            margin: 28px 0;
        }

        .article-body blockquote p {
            margin: 0;
            color: var(--text-secondary);
            font-size: 15px;
        }

        .article-body a {
            color: var(--brand);
            text-decoration: underline;
            text-decoration-color: rgba(31, 74, 71, 0.3);
            text-underline-offset: 4px;
            transition: color 0.2s, text-decoration-color 0.2s;
            font-weight: 500;
        }

        .article-body a:hover {
            color: var(--accent-hover);
            text-decoration-color: var(--accent-hover);
        }

        .article-body img {
            width: 100%;
            border-radius: 12px;
            margin: 28px 0;
            box-shadow: 0 4px 16px rgba(27, 42, 38, 0.08);
        }

        .article-body figure {
            margin: 28px 0;
        }

        .article-body figure img {
            margin: 0 0 12px;
        }

        .article-body figcaption {
            font-size: 12px;
            color: var(--text-secondary);
            text-align: center;
            margin-top: 8px;
        }

        .article-body pre {
            background: #141E1C;
            color: #D5E5E1;
            padding: 20px 24px;
            border-radius: 12px;
            font-size: 14px;
            line-height: 1.7;
            overflow-x: auto;
            margin: 24px 0;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .article-body code {
            font-family: 'SF Mono', 'Consolas', 'Menlo', monospace;
            background: #ECEAE4;
            padding: 2px 6px;
            border-radius: 4px;
            font-size: 14px;
            color: #B5654A;
        }

        .article-body pre code {
            background: none;
            padding: 0;
            color: inherit;
            font-size: 13px;
            line-height: 1.7;
        }

        .article-body table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            margin: 28px 0;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border);
            font-size: 14px;
            background: #fff;
        }

        .article-body th {
            background: var(--brand);
            color: #fff;
            font-weight: 600;
            text-align: left;
            padding: 12px 16px;
            font-size: 14px;
            letter-spacing: 0.02em;
        }

        .article-body td {
            padding: 12px 16px;
            border-top: 1px solid var(--border);
            line-height: 1.6;
        }

        .article-body tr:nth-child(even) td {
            background: #F7F8F6;
        }

        .article-body tr:hover td {
            background: #F0F4F2;
        }

        .article-body hr {
            border: none;
            border-top: 1px solid var(--border);
            margin: 40px 0;
            height: 0;
        }

        .article-body strong {
            font-weight: 700;
        }

        .article-body em {
            font-style: italic;
        }

        .article-body iframe {
            max-width: 100%;
            border-radius: 12px;
            margin: 24px 0;
            border: none;
        }

        @media (max-width: 768px) {
            .article-body {
                padding: 32px 20px;
                border-radius: 12px;
            }
            .article-body h2 {
                font-size: 20px;
            }
            .article-body h3 {
                font-size: 18px;
            }
            .article-body p {
                font-size: 15px;
                line-height: 1.85;
            }
        }

        /* ===== 内容未找到 ===== */
        .article-not-found {
            text-align: center;
            padding: 64px 24px;
        }

        .not-found-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--sub-bg);
            color: var(--text-secondary);
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 20px;
            border: 1px solid var(--border);
        }

        .article-not-found h2 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

        .article-not-found p {
            color: var(--text-secondary);
            margin-bottom: 28px;
            font-size: 15px;
            max-width: 420px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            transition: all 0.2s ease-out;
            border: none;
            cursor: pointer;
            line-height: 1.2;
        }

        .btn-primary {
            background: var(--accent);
            color: var(--text-primary);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(176, 141, 87, 0.32);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(176, 141, 87, 0.2);
        }

        .btn-ghost {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.55);
            color: #fff;
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 上下篇 ===== */
        .article-nav-section {
            max-width: 720px;
            margin: 0 auto 64px;
            padding: 36px 0 0;
            border-top: 1px solid var(--border);
        }

        .article-nav {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .article-nav-link {
            display: flex;
            flex-direction: column;
            gap: 10px;
            padding: 22px 24px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            transition: all 0.2s ease-out;
        }

        .article-nav-link:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .article-nav-link:focus-visible {
            outline: 2px solid var(--brand);
            outline-offset: 2px;
        }

        .article-nav-label {
            font-size: 12px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 6px;
            letter-spacing: 0.04em;
        }

        .article-nav-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.5;
        }

        .article-nav-next .article-nav-label {
            justify-content: flex-end;
        }

        .article-nav-next .article-nav-label span {
            order: 2;
        }

        .article-nav-next .article-nav-title {
            text-align: right;
        }

        @media (max-width: 640px) {
            .article-nav {
                grid-template-columns: 1fr;
            }
            .article-nav-next .article-nav-title {
                text-align: left;
            }
            .article-nav-next .article-nav-label {
                justify-content: flex-start;
            }
            .article-nav-next .article-nav-label span {
                order: 0;
            }
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            max-width: 720px;
            margin: 0 auto 64px;
        }

        .related-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
        }

        .related-header h2 {
            font-size: 22px;
            font-weight: 700;
            position: relative;
            padding-left: 14px;
        }

        .related-header h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 20px;
            border-radius: 4px;
            background: var(--brand);
        }

        .related-header a {
            font-size: 13px;
            color: var(--text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color 0.2s;
        }

        .related-header a:hover {
            color: var(--brand);
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .related-card {
            background: #fff;
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all 0.2s ease-out;
            display: block;
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
        }

        .related-card:focus-visible {
            outline: 2px solid var(--brand);
            outline-offset: 2px;
        }

        .related-card-img {
            width: 100%;
            height: 120px;
            object-fit: cover;
            transition: transform 0.3s ease-out;
        }

        .related-card:hover .related-card-img {
            transform: scale(1.03);
        }

        .related-card-body {
            padding: 16px 16px 18px;
        }

        .related-card-title {
            font-size: 14px;
            font-weight: 600;
            line-height: 1.55;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
            color: var(--text-primary);
            transition: color 0.2s;
        }

        .related-card:hover .related-card-title {
            color: var(--brand);
        }

        .related-card-time {
            font-size: 12px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .related-card-time::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }

        @media (max-width: 768px) {
            .related-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .related-card {
                display: flex;
                align-items: center;
                gap: 16px;
            }
            .related-card-img {
                width: 110px;
                height: 84px;
                flex-shrink: 0;
            }
            .related-card-body {
                padding: 12px 16px 12px 0;
                flex: 1;
            }
        }

        @media (max-width: 520px) {
            .related-card {
                flex-direction: column;
                align-items: stretch;
            }
            .related-card-img {
                width: 100%;
                height: 140px;
            }
            .related-card-body {
                padding: 14px 16px 16px;
            }
        }

        /* ===== 返回首页 ===== */
        .back-home-wrap {
            text-align: center;
            margin-bottom: 64px;
        }

        .back-home-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--brand);
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            transition: all 0.2s ease-out;
        }

        .back-home-link:hover {
            border-color: var(--brand);
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }

        /* ===== CTA 区块 ===== */
        .cta-section {
            background: var(--brand);
            position: relative;
            overflow: hidden;
            padding: 64px 0;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -140px;
            right: -80px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .cta-content {
            position: relative;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
            padding: 0 24px;
            z-index: 1;
        }

        .cta-content h2 {
            color: #fff;
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .cta-content p {
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 28px;
            font-size: 15px;
            line-height: 1.7;
        }

        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        @media (max-width: 640px) {
            .cta-section {
                padding: 48px 0;
            }
            .cta-content h2 {
                font-size: 24px;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--footer-bg);
            color: #CDD8D5;
            font-size: 14px;
        }

        .footer-main {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding: 56px 24px 48px;
            max-width: 1200px;
            margin: 0 auto;
        }

        .footer-brand p {
            margin-top: 16px;
            color: #9FB3AE;
            font-size: 13px;
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .footer-logo-icon svg {
            width: 20px;
            height: 20px;
            fill: none;
            stroke: var(--accent);
            stroke-width: 1.5;
        }

        .footer-logo-text {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.02em;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.02em;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 2px;
            border-radius: 2px;
            background: var(--accent);
            opacity: 0.6;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col li {
            margin-bottom: 12px;
        }

        .footer-col a {
            color: #9FB3AE;
            font-size: 13px;
            transition: color 0.2s, padding-left 0.2s;
        }

        .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-contact svg {
            width: 14px;
            height: 14px;
            display: inline-block;
            margin-right: 8px;
            vertical-align: -2px;
            fill: none;
            stroke: var(--accent);
            stroke-width: 1.5;
            opacity: 0.7;
            flex-shrink: 0;
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            line-height: 1.5;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            background: var(--footer-deep);
            padding: 16px 0;
            font-size: 12px;
            color: #7A918C;
        }

        .footer-bottom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .footer-bottom a {
            color: #7A918C;
            transition: color 0.2s;
        }

        .footer-bottom a:hover {
            color: var(--accent);
        }

        @media (max-width: 1024px) {
            .footer-main {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 640px) {
            .footer-main {
                grid-template-columns: 1fr;
                gap: 28px;
                padding: 40px 16px;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .footer-bottom .container {
                flex-direction: column;
                gap: 6px;
                text-align: center;
            }
        }

        /* ===== 容器响应式 ===== */
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .article-main {
                padding: 32px 0 56px;
            }
            .breadcrumb-bar {
                padding: 0;
            }
            .breadcrumb-wrap {
                font-size: 12px;
                gap: 6px;
                padding-top: 8px;
                padding-bottom: 8px;
            }
        }

/* roulang page: category2 */
:root {
    --bg: #F6F5F1;
    --surface: #FFFFFF;
    --surface-alt: #ECEAE4;
    --text-main: #1B2A26;
    --text-sub: #4A5C57;
    --brand: #1F4A47;
    --brand-hover: #163A38;
    --accent: #B08D57;
    --accent-hover: #9A7A47;
    --success: #2E7D5B;
    --warning: #C2482F;
    --border: #E2DED6;
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 12px;
    --shadow: 0 10px 30px rgba(27, 42, 38, .08);
    --shadow-lg: 0 16px 40px rgba(27, 42, 38, .14);
  }

  *,
  *::before,
  *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text-main);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }

  a {
    text-decoration: none;
    color: inherit;
  }

  img {
    display: block;
    max-width: 100%;
  }

  button {
    font: inherit;
    cursor: pointer;
    border: none;
    background: none;
  }

  ul,
  ol {
    list-style: none;
  }

  input,
  select,
  textarea {
    font: inherit;
  }

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

  .section {
    padding: 96px 0;
  }

  .section-tag {
    display: inline-block;
    color: var(--accent);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .08em;
    margin-bottom: 12px;
  }

  .section-head {
    margin-bottom: 48px;
  }

  .section-head.center {
    text-align: center;
  }

  .section-head h2 {
    font-size: 30px;
    line-height: 1.25;
    font-weight: 700;
    color: var(--text-main);
  }

  .section-head p {
    margin-top: 12px;
    color: var(--text-sub);
    max-width: 640px;
  }

  .section-head.center p {
    margin-left: auto;
    margin-right: auto;
  }

  /* Topbar */
  .topbar {
    background: var(--brand);
    color: #fff;
    font-size: 13px;
    height: 36px;
    display: flex;
    align-items: center;
  }

  .topbar-inner {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
  }

  .topbar .tb-left {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
  }

  .topbar .tb-left .divider {
    opacity: .4;
  }

  .topbar .tb-right {
    display: flex;
    align-items: center;
    gap: 18px;
  }

  .topbar a {
    color: rgba(255, 255, 255, .92);
    font-size: 12px;
    transition: color .2s ease-out;
  }

  .topbar a:hover {
    color: var(--accent);
  }

  /* Header */
  .site-header {
    background: var(--surface);
    position: sticky;
    top: 0;
    z-index: 100;
    border-top: 2px solid var(--accent);
    box-shadow: 0 2px 12px rgba(27, 42, 38, .06);
  }

  .nav-wrap {
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
  }

  .brand {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
  }

  .brand-logo {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: var(--brand);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }

  .brand-logo svg {
    width: 22px;
    height: 22px;
    fill: none;
    stroke: var(--accent);
    stroke-width: 1.6;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  .brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
  }

  .brand-main {
    font-size: 18px;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: .02em;
  }

  .brand-sub {
    font-size: 10px;
    font-weight: 500;
    color: var(--text-sub);
    letter-spacing: .1em;
    margin-top: 2px;
  }

  .nav-desktop {
    display: flex;
    align-items: center;
    gap: 4px;
  }

  .nav-desktop li a {
    display: block;
    padding: 10px 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-sub);
    border-radius: 8px;
    position: relative;
    transition: color .2s, background .2s;
  }

  .nav-desktop li a:hover {
    color: var(--brand);
    background: rgba(31, 74, 71, .06);
  }

  .nav-desktop li.active a {
    color: var(--brand);
    font-weight: 600;
  }

  .nav-desktop li.active a::after {
    content: '';
    position: absolute;
    left: 16px;
    right: 16px;
    bottom: 4px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
  }

  .nav-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    color: var(--text-main);
    font-size: 14px;
    font-weight: 600;
    padding: 10px 22px;
    border-radius: 12px;
    transition: background .2s, transform .2s, box-shadow .2s;
    box-shadow: 0 2px 8px rgba(176, 141, 87, .25);
    flex-shrink: 0;
  }

  .nav-cta:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(176, 141, 87, .3);
  }

  .menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: var(--surface-alt);
    color: var(--text-main);
    transition: background .2s;
  }

  .menu-toggle:hover {
    background: var(--border);
  }

  .mobile-menu {
    display: none;
    position: fixed;
    left: 0;
    right: 0;
    top: 110px;
    bottom: 0;
    background: var(--surface);
    padding: 24px;
    z-index: 99;
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: transform .25s ease-out, opacity .25s ease-out, visibility .25s ease-out;
    overflow-y: auto;
  }

  .mobile-menu.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .mobile-menu ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .mobile-menu ul li a {
    display: block;
    padding: 14px 16px;
    background: var(--bg);
    border-radius: 12px;
    font-size: 16px;
    font-weight: 500;
    color: var(--text-main);
    transition: background .2s, color .2s;
  }

  .mobile-menu ul li.active a {
    background: var(--brand);
    color: #fff;
  }

  .mobile-menu .mobile-cta {
    margin-top: 24px;
    display: block;
    text-align: center;
    width: 100%;
  }

  /* Page banner */
  .page-banner {
    position: relative;
    background-image: url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    min-height: 200px;
    display: flex;
    align-items: center;
    padding: 48px 0;
  }

  .page-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(246, 245, 241, .96) 0%, rgba(246, 245, 241, .90) 55%, rgba(246, 245, 241, .72) 100%);
  }

  .banner-inner {
    position: relative;
    z-index: 2;
    padding-top: 12px;
  }

  .breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-sub);
    margin-bottom: 16px;
  }

  .breadcrumb a {
    color: var(--text-sub);
    transition: color .2s;
  }

  .breadcrumb a:hover {
    color: var(--brand);
  }

  .breadcrumb span:last-child {
    color: var(--brand);
    font-weight: 500;
  }

  .page-banner h1 {
    font-size: 36px;
    line-height: 1.2;
    font-weight: 800;
    color: var(--text-main);
  }

  .page-banner h1 .h1-brand {
    color: var(--accent);
  }

  .banner-sub {
    margin-top: 12px;
    font-size: 15px;
    color: var(--text-sub);
    max-width: 640px;
  }

  /* Intro */
  .intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
  }

  .intro-media {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
  }

  .intro-media img {
    width: 100%;
    height: 360px;
    object-fit: cover;
  }

  .intro-badge {
    position: absolute;
    left: 20px;
    bottom: 20px;
    background: rgba(255, 255, 255, .92);
    color: var(--brand);
    font-size: 13px;
    font-weight: 600;
    padding: 8px 14px;
    border-radius: 999px;
    box-shadow: var(--shadow);
  }

  .intro-content h2 {
    font-size: 30px;
    line-height: 1.3;
    margin: 10px 0 20px;
  }

  .intro-content p {
    color: var(--text-sub);
    margin-bottom: 16px;
    font-size: 15px;
  }

  .intro-list {
    margin-top: 20px;
    display: grid;
    gap: 12px;
  }

  .intro-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-main);
  }

  .intro-list li::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    flex-shrink: 0;
  }

  /* Showcase */
  .showcase-section {
    background: var(--bg);
  }

  .showcase-grid {
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 24px;
    align-items: start;
  }

  .showcase-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: transform .2s ease-out, box-shadow .2s ease-out, border-color .2s ease-out;
  }

  .showcase-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
  }

  .showcase-card-lg .showcase-media img {
    height: 320px;
  }

  .showcase-media img {
    width: 100%;
    height: 200px;
    object-fit: cover;
  }

  .showcase-body {
    padding: 28px;
  }

  .card-no {
    font-size: 13px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: .1em;
  }

  .showcase-body h3 {
    font-size: 22px;
    font-weight: 700;
    margin: 10px 0 12px;
  }

  .showcase-body p {
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.7;
  }

  .showcase-stack {
    display: grid;
    gap: 24px;
  }

  .card-link {
    display: inline-block;
    margin-top: 16px;
    color: var(--brand);
    font-size: 14px;
    font-weight: 600;
    transition: color .2s;
  }

  .card-link:hover {
    color: var(--accent);
  }

  /* Process */
  .process-section {
    background: var(--surface);
  }

  .process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }

  .process-item {
    background: var(--bg);
    border-radius: var(--radius-md);
    padding: 32px 24px;
    border: 1px solid var(--border);
    position: relative;
    transition: box-shadow .2s, transform .2s;
  }

  .process-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
  }

  .process-num {
    font-size: 40px;
    font-weight: 800;
    color: var(--accent);
    opacity: .35;
    display: block;
    line-height: 1;
    font-variant-numeric: tabular-nums;
  }

  .process-item h3 {
    font-size: 18px;
    font-weight: 600;
    margin: 16px 0 8px;
  }

  .process-item p {
    font-size: 14px;
    color: var(--text-sub);
  }

  /* FAQ */
  .faq-section {
    background: var(--bg);
  }

  .faq-wrap {
    max-width: 860px;
  }

  .faq-list {
    display: grid;
    gap: 12px;
  }

  .faq-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    transition: border-color .2s, box-shadow .2s;
  }

  .faq-item.open {
    border-color: var(--accent);
    box-shadow: var(--shadow);
  }

  .faq-question {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 20px;
    cursor: pointer;
    min-height: 56px;
    user-select: none;
  }

  .faq-q-mark {
    width: 28px;
    height: 28px;
    background: var(--accent);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    flex-shrink: 0;
  }

  .faq-question h3 {
    font-size: 16px;
    font-weight: 600;
    flex: 1;
    color: var(--text-main);
  }

  .faq-icon {
    width: 16px;
    height: 16px;
    position: relative;
    flex-shrink: 0;
  }

  .faq-icon::before,
  .faq-icon::after {
    content: '';
    position: absolute;
    background: var(--text-sub);
    transition: transform .2s ease-out;
  }

  .faq-icon::before {
    width: 16px;
    height: 2px;
    top: 7px;
    left: 0;
    border-radius: 1px;
  }

  .faq-icon::after {
    width: 2px;
    height: 16px;
    top: 0;
    left: 7px;
    border-radius: 1px;
  }

  .faq-item.open .faq-icon::after {
    transform: scaleY(0);
  }

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .25s ease-out;
    position: relative;
  }

  .faq-answer-inner {
    padding: 0 20px 20px 64px;
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.7;
  }

  /* CTA */
  .cta-section {
    background: var(--brand);
    padding: 80px 0;
  }

  .cta-card {
    background: linear-gradient(135deg, rgba(246, 245, 241, .06) 0%, rgba(176, 141, 87, .12) 100%);
    border: 1px solid rgba(255, 255, 255, .12);
    border-radius: var(--radius-lg);
    padding: 64px 48px;
    text-align: center;
  }

  .cta-card h2 {
    color: #fff;
    font-size: 30px;
    font-weight: 700;
  }

  .cta-card p {
    color: rgba(255, 255, 255, .82);
    margin-top: 12px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
  }

  .cta-actions {
    margin-top: 32px;
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    transition: all .2s ease-out;
  }

  .btn-accent {
    background: var(--accent);
    color: var(--text-main);
    box-shadow: 0 6px 20px rgba(176, 141, 87, .35);
  }

  .btn-accent:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(176, 141, 87, .4);
  }

  .btn-outline {
    border: 1px solid rgba(255, 255, 255, .5);
    color: #fff;
  }

  .btn-outline:hover {
    background: rgba(255, 255, 255, .1);
    border-color: var(--accent);
  }

  /* Footer */
  .site-footer {
    background: #0F2926;
    color: #CDD8D5;
    padding-top: 64px;
  }

  .footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 48px;
  }

  .footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
  }

  .footer-logo-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: rgba(255, 255, 255, .1);
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .footer-logo-icon svg {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: var(--accent);
    stroke-width: 1.6;
    stroke-linecap: round;
  }

  .footer-logo-text {
    font-size: 18px;
    font-weight: 800;
    color: #fff;
  }

  .footer-brand p {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255, 255, 255, .65);
    max-width: 260px;
  }

  .footer-col h4 {
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 16px;
  }

  .footer-col ul {
    display: grid;
    gap: 10px;
  }

  .footer-col ul li a {
    font-size: 14px;
    color: rgba(255, 255, 255, .65);
    transition: color .2s;
  }

  .footer-col ul li a:hover {
    color: var(--accent);
  }

  .footer-contact li {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, .65);
  }

  .footer-contact li svg {
    width: 16px;
    height: 16px;
    fill: none;
    stroke: var(--accent);
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
    flex-shrink: 0;
  }

  .footer-bottom {
    background: #0A1F1C;
    padding: 20px 0;
    font-size: 12px;
    color: rgba(255, 255, 255, .55);
  }

  .footer-bottom-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
  }

  /* Responsive */
  @media (max-width: 1024px) {
    .intro-grid {
      gap: 40px;
    }

    .process-grid {
      grid-template-columns: repeat(2, 1fr);
    }

    .footer-main {
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
  }

  @media (max-width: 920px) {
    .nav-desktop,
    .nav-cta {
      display: none;
    }

    .menu-toggle {
      display: inline-flex;
    }

    .mobile-menu {
      display: block;
    }

    .showcase-grid {
      grid-template-columns: 1fr;
    }

    .topbar .tb-right a:not(:last-child) {
      display: none;
    }
  }

  @media (max-width: 768px) {
    .section {
      padding: 64px 0;
    }

    .intro-grid {
      grid-template-columns: 1fr;
      gap: 24px;
    }

    .intro-media img {
      height: 240px;
    }

    .page-banner h1 {
      font-size: 28px;
    }

    .cta-card {
      padding: 40px 24px;
    }

    .footer-main {
      grid-template-columns: 1fr;
      gap: 32px;
    }
  }

  @media (max-width: 520px) {
    .container {
      padding-left: 20px !important;
      padding-right: 20px !important;
    }

    .topbar .tb-left .divider,
    .topbar .tb-left span:not(.tb-domain) {
      display: none;
    }

    .process-grid {
      grid-template-columns: 1fr;
    }

    .brand-main {
      font-size: 16px;
    }

    .page-banner {
      min-height: 170px;
      padding: 36px 0;
    }

    .page-banner h1 {
      font-size: 24px;
    }

    .showcase-body {
      padding: 20px;
    }

    .showcase-body h3 {
      font-size: 19px;
    }

    .faq-answer-inner {
      padding: 0 16px 16px 54px;
    }

    .cta-actions .btn {
      width: 100%;
    }
  }

/* roulang page: category3 */
:root {
            --bg: #F6F5F1;
            --surface: #FFFFFF;
            --surface-dim: #ECEAE4;
            --text: #1B2A26;
            --text-muted: #4A5C57;
            --primary: #1F4A47;
            --primary-hover: #163A38;
            --accent: #B08D57;
            --accent-hover: #9A7A47;
            --success: #2E7D5B;
            --warning: #C2482F;
            --border: #E2DED6;
            --radius-sm: 10px;
            --radius-card: 16px;
            --radius-lg: 24px;
            --radius-pill: 999px;
            --shadow: 0 10px 30px rgba(27, 42, 38, .08);
            --shadow-hover: 0 16px 40px rgba(27, 42, 38, .14);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-num: 'Inter', 'Manrope', 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }

        input,
        select,
        textarea {
            font-family: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            max-width: 1220px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 96px 0;
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 48px;
        }

        .section-head.left {
            justify-content: flex-start;
            gap: 16px;
            align-items: center;
            flex-direction: row;
        }

        .section-head .head-line {
            width: 4px;
            height: 32px;
            background: var(--primary);
            border-radius: 2px;
            flex-shrink: 0;
        }

        .section-head h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text);
            letter-spacing: -0.5px;
        }

        .section-head p {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 6px;
            max-width: 640px;
        }

        .section-sub {
            font-size: 14px;
            color: var(--text-muted);
            max-width: 640px;
            margin-top: 8px;
        }

        /* ===== 顶部信息条 ===== */
        .topbar {
            height: 36px;
            background: var(--primary);
            color: #fff;
            font-size: 13px;
        }

        .topbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 12px;
        }

        .topbar-domain {
            color: rgba(255, 255, 255, .88);
            font-size: 13px;
        }

        .topbar-links {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 12px;
        }

        .topbar-links a {
            color: rgba(255, 255, 255, .82);
            transition: color .2s ease;
        }

        .topbar-links a:hover {
            color: var(--accent);
        }

        .topbar-divider {
            color: rgba(255, 255, 255, .35);
        }

        @media (max-width: 640px) {
            .topbar-links {
                display: none;
            }
            .topbar-domain {
                font-size: 12px;
            }
        }

        /* ===== 主导航 ===== */
        .site-header {
            height: 72px;
            background: var(--surface);
            border-top: 2px solid var(--accent);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 50;
            box-shadow: 0 4px 16px rgba(27, 42, 38, .04);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            gap: 16px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-logo {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            transition: background .2s ease;
        }

        .brand-logo svg {
            width: 22px;
            height: 22px;
            fill: none;
            stroke: currentColor;
            stroke-width: 1.6;
            stroke-linecap: round;
        }

        .brand:hover .brand-logo {
            background: var(--primary-hover);
        }

        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }

        .brand-main {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: .2px;
        }

        .brand-sub {
            font-size: 10px;
            color: var(--text-muted);
            letter-spacing: 1.5px;
            text-transform: uppercase;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .nav-desktop li a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            padding: 8px 0;
            position: relative;
            transition: color .2s ease;
        }

        .nav-desktop li a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 1px;
            transition: width .2s ease-out;
        }

        .nav-desktop li a:hover {
            color: var(--primary);
        }

        .nav-desktop li.active a {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-desktop li.active a::after {
            width: 100%;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: var(--text);
            font-size: 14px;
            font-weight: 700;
            padding: 10px 22px;
            border-radius: 12px;
            transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
            white-space: nowrap;
        }

        .nav-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(176, 141, 87, .32);
        }

        .menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            color: var(--text);
            border: 1px solid var(--border);
            transition: background .2s ease, border-color .2s ease;
        }

        .menu-toggle:hover {
            background: var(--surface-dim);
        }

        @media (max-width: 1024px) {
            .nav-desktop {
                display: none;
                position: fixed;
                top: 108px;
                left: 0;
                right: 0;
                background: var(--surface);
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding: 24px;
                margin: 0;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 16px 40px rgba(27, 42, 38, .12);
                z-index: 49;
            }
            .nav-desktop.open {
                display: flex;
            }
            .nav-desktop li a {
                font-size: 16px;
                padding: 14px 8px;
                display: block;
                color: var(--text);
                border-radius: var(--radius-sm);
            }
            .nav-desktop li a:hover {
                background: var(--surface-dim);
                color: var(--primary);
            }
            .nav-desktop li.active a {
                background: rgba(31, 74, 71, .06);
            }
            .nav-desktop li a::after {
                display: none;
            }
            .nav-cta {
                display: none;
                width: 100%;
                justify-content: center;
                margin-top: 16px;
                padding: 14px 22px;
            }
            .nav-cta.open {
                display: inline-flex;
            }
            .menu-toggle {
                display: flex;
            }
        }

        /* ===== 页面头区 ===== */
        .page-hero {
            position: relative;
            padding: 72px 0 80px;
            text-align: center;
            background-color: var(--bg);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center 25%;
            isolation: isolate;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(246, 245, 241, .9) 0%, rgba(246, 245, 241, .97) 100%);
            z-index: -1;
        }

        .page-hero .container {
            position: relative;
            z-index: 1;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(176, 141, 87, .14);
            color: var(--accent-hover);
            font-size: 13px;
            font-weight: 600;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            border: 1px solid rgba(176, 141, 87, .3);
            margin-bottom: 24px;
            letter-spacing: .5px;
        }

        .page-hero h1 {
            font-size: 42px;
            line-height: 1.2;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -.5px;
            max-width: 820px;
            margin: 0 auto 20px;
        }

        .page-hero h1 .text-accent {
            color: var(--accent-hover);
        }

        .page-hero .hero-desc {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-muted);
            max-width: 680px;
            margin: 0 auto 36px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: var(--text);
            font-size: 15px;
            font-weight: 700;
            padding: 14px 30px;
            border-radius: 14px;
            transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
            box-shadow: 0 6px 20px rgba(176, 141, 87, .25);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(176, 141, 87, .35);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--primary);
            font-size: 15px;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: 14px;
            border: 1.5px solid var(--primary);
            transition: background .2s ease, transform .2s ease, border-color .2s ease;
        }

        .btn-outline:hover {
            background: rgba(31, 74, 71, .06);
            border-color: var(--primary-hover);
            transform: translateY(-2px);
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 56px 0 64px;
            }
            .page-hero h1 {
                font-size: 30px;
            }
            .hero-desc {
                font-size: 15px;
            }
        }

        /* ===== 分类简介 ===== */
        .about-section {
            background: var(--surface);
            padding: 88px 0;
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1.05fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .about-media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .about-media img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            transition: transform .4s ease-out;
        }

        .about-media:hover img {
            transform: scale(1.02);
        }

        .about-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(27, 42, 38, .1) 100%);
            pointer-events: none;
        }

        .about-content h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 20px;
            color: var(--text);
        }

        .about-content p {
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-muted);
            margin-bottom: 28px;
        }

        .about-points {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        .about-points li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            background: var(--bg);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            border-left: 3px solid var(--accent);
        }

        @media (max-width: 1024px) {
            .about-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .about-media img {
                height: 300px;
            }
        }

        @media (max-width: 640px) {
            .about-points {
                grid-template-columns: 1fr;
            }
            .about-content h2 {
                font-size: 24px;
            }
        }

        /* ===== 防护体系 ===== */
        .protect-section {
            background: var(--bg);
            padding: 96px 0;
        }

        .protect-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .card-feature {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
            display: flex;
            flex-direction: column;
        }

        .card-feature:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
        }

        .card-feature .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-bottom: 1px solid var(--border);
        }

        .card-feature .card-tag {
            display: inline-flex;
            align-items: center;
            background: rgba(31, 74, 71, .08);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 14px;
            align-self: flex-start;
        }

        .card-feature h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
            line-height: 1.3;
        }

        .card-feature p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-muted);
            flex: 1;
        }

        .card-foot {
            margin-top: 20px;
            padding-top: 16px;
            border-top: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color .2s ease, gap .2s ease;
        }

        .card-link:hover {
            color: var(--accent-hover);
            gap: 10px;
        }

        .card-feature-wide {
            grid-column: 1 / -1;
            flex-direction: row;
            align-items: center;
            gap: 36px;
            padding: 0;
        }

        .card-feature-wide .card-img {
            width: 340px;
            height: 220px;
            border-bottom: none;
            border-right: 1px solid var(--border);
            flex-shrink: 0;
        }

        .card-art {
            padding: 28px 32px 28px 0;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        @media (max-width: 1024px) {
            .card-feature-wide {
                flex-direction: column;
                align-items: stretch;
                gap: 0;
            }
            .card-feature-wide .card-img {
                width: 100%;
                height: 200px;
                border-right: none;
                border-bottom: 1px solid var(--border);
            }
            .card-art {
                padding: 24px;
            }
        }

        @media (max-width: 768px) {
            .protect-grid {
                grid-template-columns: 1fr;
            }
            .card-feature-wide {
                grid-column: auto;
            }
            .card-feature .card-img {
                height: 180px;
            }
        }

        /* ===== 安全服务流程 ===== */
        .process-section {
            background: var(--surface);
            padding: 96px 0;
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .process-item {
            background: var(--bg);
            border-radius: var(--radius-card);
            padding: 32px 24px;
            position: relative;
            border: 1px solid transparent;
            transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
        }

        .process-item:hover {
            border-color: var(--accent);
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }

        .step-num {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--accent);
            font-size: 15px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            font-family: var(--font-num);
        }

        .process-item h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }

        .process-item p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-muted);
        }

        .process-item::after {
            content: '';
            position: absolute;
            top: 45px;
            left: -10px;
            width: 20px;
            height: 2px;
            background: var(--accent);
            opacity: .4;
        }

        .process-item:first-child::after {
            display: none;
        }

        @media (max-width: 1024px) {
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-item::after {
                display: none;
            }
        }

        @media (max-width: 640px) {
            .process-steps {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 统计 ===== */
        .stats-section {
            background: var(--primary);
            padding: 0;
            color: #fff;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            padding: 56px 0;
            position: relative;
        }

        .stats-grid::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(176, 141, 87, .5), transparent);
        }

        .stat-item {
            text-align: center;
            padding: 16px 20px;
            border-left: 1px solid rgba(255, 255, 255, .1);
        }

        .stat-item:first-child {
            border-left: none;
        }

        .stat-num {
            font-family: var(--font-num);
            font-size: 44px;
            font-weight: 800;
            line-height: 1.1;
            color: var(--accent);
            font-variant-numeric: tabular-nums;
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, .75);
            letter-spacing: .5px;
        }

        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                padding: 44px 0;
            }
            .stat-item {
                border-left: none;
                padding: 24px 16px;
            }
        }

        @media (max-width: 640px) {
            .stat-num {
                font-size: 34px;
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg);
            padding: 96px 0;
        }

        .faq-list {
            max-width: 840px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 14px;
            overflow: hidden;
            transition: border-color .2s ease, box-shadow .2s ease;
        }

        .faq-item.open {
            border-color: var(--accent);
            box-shadow: 0 10px 30px rgba(27, 42, 38, .08);
        }

        .faq-q {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 24px;
            cursor: pointer;
            user-select: none;
        }

        .faq-ico {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
            transition: background .2s ease, transform .2s ease;
        }

        .faq-item.open .faq-ico {
            background: var(--primary);
            transform: rotate(45deg);
        }

        .faq-q h3 {
            font-size: 16px;
            font-weight: 600;
            flex: 1;
            color: var(--text);
            line-height: 1.4;
        }

        .faq-a {
            display: none;
            padding: 4px 24px 22px 66px;
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-muted);
            border-top: 1px dashed var(--border);
            margin: 0 0 0 42px;
            padding-left: 0;
        }

        .faq-item.open .faq-a {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--surface);
            padding: 80px 0;
        }

        .cta-box {
            background: linear-gradient(135deg, #FBF8F2 0%, #F1EBDF 100%);
            border: 1px solid rgba(176, 141, 87, .35);
            border-radius: var(--radius-lg);
            padding: 56px 64px;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(176, 141, 87, .1);
        }

        .cta-box h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 14px;
            line-height: 1.3;
        }

        .cta-box p {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 560px;
            line-height: 1.8;
            margin: 0 auto 28px;
        }

        .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .cta-actions .btn-primary {
            padding: 13px 32px;
        }

        .cta-actions .btn-outline {
            padding: 12px 28px;
            border-color: var(--accent);
            color: var(--accent-hover);
        }

        .cta-actions .btn-outline:hover {
            background: rgba(176, 141, 87, .08);
            border-color: var(--accent-hover);
        }

        @media (max-width: 768px) {
            .cta-box {
                padding: 40px 24px;
            }
            .cta-box h2 {
                font-size: 22px;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0F2926;
            color: #CDD8D5;
            font-size: 14px;
        }

        .footer-main {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding: 64px 24px 48px;
            max-width: 1220px;
            margin: 0 auto;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: rgba(255, 255, 255, .1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
        }

        .footer-logo-icon svg {
            width: 20px;
            height: 20px;
            fill: none;
            stroke: currentColor;
            stroke-width: 1.6;
            stroke-linecap: round;
        }

        .footer-logo-text {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .6);
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: .5px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, .65);
            transition: color .2s ease;
            font-size: 13px;
        }

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, .65);
            font-size: 13px;
        }

        .footer-contact svg {
            width: 16px;
            height: 16px;
            fill: none;
            stroke: currentColor;
            stroke-width: 1.5;
            stroke-linecap: round;
            flex-shrink: 0;
            color: var(--accent);
        }

        .footer-bottom {
            background: #0A1F1C;
            padding: 18px 24px;
            border-top: 1px solid rgba(255, 255, 255, .06);
        }

        .footer-bottom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: 1220px;
            margin: 0 auto;
        }

        .copyright {
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
        }

        .footer-bottom .copy-note {
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
        }

        @media (max-width: 1024px) {
            .footer-main {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 640px) {
            .footer-main {
                grid-template-columns: 1fr;
                padding: 40px 24px;
            }
            .footer-bottom .container {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }
            .section-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                margin-bottom: 32px;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .section-head .head-line {
                height: 28px;
            }
        }