/* roulang page: index */
:root {
  --main: #0E3B32;
  --accent: #C9A96A;
  --light-bg: #F7F5F0;
  --dark-bg: #0B1412;
  --card-dark: #15201D;
  --ink: #1A211E;
  --ink-2: #5C6A65;
  --ink-3: #8B9894;
  --white: #FFFFFF;
  --white-2: #A8B5B0;
  --border-light: rgba(26,33,30,0.08);
  --border-dark: rgba(255,255,255,0.12);
  --radius-card: 14px;
  --radius-img: 8px;
  --radius-pill: 999px;
  --shadow-1: 0 2px 8px rgba(11,20,18,0.06);
  --shadow-2: 0 14px 36px rgba(11,20,18,0.14);
  --shadow-3: 0 10px 44px rgba(11,20,18,0.28);
  --space-section: 96px;
  --serif: Georgia, "Times New Roman", serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:PingFang SC,"Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:16px;line-height:1.75;color:var(--ink);background:var(--light-bg);overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .25s}
ul,ol{list-style:none}
button,input{font-family:inherit;font-size:inherit;border:none;background:none;cursor:pointer}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section-pad{padding:var(--space-section) 0}
.scroll-mt{scroll-margin-top:88px}
h1,h2,h3,h4{line-height:1.3;font-weight:700}
@media (prefers-reduced-motion: reduce) {
  *,*::before,*::after{animation:none!important;transition:none!important}
}

/* Header / Nav */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;background:var(--main);height:72px;border-bottom:1px solid rgba(201,169,106,0.15);box-shadow:0 4px 20px rgba(0,0,0,0.15)}
.header-inner{max-width:1280px;margin:0 auto;padding:0 24px;height:72px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px}
.nav-left,.nav-right{display:flex;align-items:center;gap:8px}
.nav-right{justify-content:flex-end}
.nav-link{font-size:14px;letter-spacing:0.03em;color:rgba(245,243,238,0.75);padding:8px 14px;border-radius:6px;position:relative;font-weight:500}
.nav-link:hover{color:var(--white)}
.nav-link.active{color:var(--accent)}
.nav-link.active::after{content:'';position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--accent)}
.brand-logo{font-size:20px;font-weight:700;color:var(--white);letter-spacing:0.02em;display:flex;align-items:center;gap:8px;white-space:nowrap}
.brand-logo svg{width:22px;height:22px;fill:var(--accent)}
.nav-cta{background:var(--accent);color:var(--main);font-size:14px;font-weight:700;padding:10px 22px;border-radius:var(--radius-pill);letter-spacing:0.02em;transition:all .25s}
.nav-cta:hover{background:var(--white);color:var(--main)}
.burger{display:none;width:40px;height:40px;flex-direction:column;justify-content:center;align-items:center;gap:5px;background:rgba(255,255,255,0.08);border-radius:8px;cursor:pointer}
.burger span{width:20px;height:2px;background:var(--white);border-radius:2px;transition:all .3s}
.mobile-menu{display:none;position:fixed;top:72px;left:0;right:0;bottom:0;background:var(--main);z-index:99;padding:24px;flex-direction:column;gap:4px}
.mobile-menu.open{display:flex}
.mobile-menu .nav-link{font-size:18px;padding:16px;border-bottom:1px solid rgba(255,255,255,0.06);color:rgba(245,243,238,0.85)}
.mobile-menu .nav-link.active{color:var(--accent)}
.mobile-menu .mobile-cta{margin-top:24px;text-align:center}

/* Hero */
.hero{min-height:100vh;background:var(--dark-bg);position:relative;display:flex;align-items:center;padding:120px 0 80px}
.hero-bg{position:absolute;top:0;right:0;bottom:0;left:0;background:url('/assets/images/backpic/back-1.webp') no-repeat right center/cover;z-index:1}
.hero-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,20,18,0.95) 15%,rgba(11,20,18,0.75) 55%,rgba(11,20,18,0.4) 100%)}
.hero-content{position:relative;z-index:2;max-width:620px}
.hero-tag{display:inline-block;padding:6px 18px;border:1px solid rgba(255,255,255,0.2);border-radius:var(--radius-pill);color:rgba(245,243,238,0.75);font-size:13px;letter-spacing:0.08em;margin-bottom:28px;background:rgba(255,255,255,0.04)}
.hero h1{font-size:52px;color:var(--white);margin-bottom:18px;letter-spacing:-0.5px}
.hero-sub{font-size:17px;color:rgba(245,243,238,0.75);margin-bottom:36px;line-height:1.7}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.btn-primary{display:inline-block;background:var(--accent);color:var(--main);font-size:16px;font-weight:700;padding:14px 36px;border-radius:var(--radius-pill);transition:all .25s;border:1px solid var(--accent)}
.btn-primary:hover{background:var(--main);color:var(--accent);border-color:var(--accent)}
.btn-primary:active{transform:scale(0.97)}
.btn-outline{display:inline-block;background:transparent;color:var(--white);font-size:16px;font-weight:600;padding:14px 36px;border-radius:var(--radius-pill);border:1px solid rgba(255,255,255,0.4);transition:all .25s}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}
.btn-outline:active{transform:scale(0.97)}
.hero-badges{position:absolute;bottom:36px;left:0;right:0;z-index:2;display:flex;gap:12px;flex-wrap:wrap;max-width:1200px;margin:0 auto;padding:0 24px}
.hero-badge{display:inline-flex;align-items:center;gap:6px;padding:8px 18px;border:1px solid rgba(255,255,255,0.12);border-radius:var(--radius-pill);color:rgba(245,243,238,0.7);font-size:13px;background:rgba(255,255,255,0.04)}
.hero-badge svg{width:14px;height:14px;fill:var(--accent)}
.scroll-indicator{position:absolute;bottom:32px;right:40px;z-index:2;color:rgba(255,255,255,0.6);animation:bounce 2s infinite}
@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(8px)}}

/* Section titles */
.section-tag{display:inline-block;font-size:13px;letter-spacing:0.08em;color:var(--accent);font-weight:600;margin-bottom:12px;text-transform:uppercase}
.section-title{font-size:34px;color:var(--ink);margin-bottom:14px;letter-spacing:-0.3px}
.section-desc{font-size:16px;color:var(--ink-2);max-width:640px;line-height:1.7}
.dark-section .section-title{color:var(--white)}
.dark-section .section-desc{color:var(--white-2)}
.fade-up{opacity:0;transform:translateY(24px);transition:opacity .6s ease-out,transform .6s ease-out}
.fade-up.visible{opacity:1;transform:translateY(0)}

/* Features */
.features{background:var(--light-bg)}
.features-head{margin-bottom:60px}
.features-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.feature-card{background:var(--white);border-radius:var(--radius-card);padding:32px 28px;box-shadow:var(--shadow-1);transition:all .3s cubic-bezier(0.25,0.1,0.25,1);position:relative;overflow:hidden;border:1px solid var(--border-light)}
.feature-card::after{content:'';position:absolute;bottom:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent),transparent);transform:scaleX(0);transform-origin:left;transition:transform .35s}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.feature-card:hover::after{transform:scaleX(1)}
.feature-card:nth-child(2){margin-left:8.33%}
.feature-icon{width:48px;height:48px;border-radius:10px;background:rgba(14,59,50,0.08);display:flex;align-items:center;justify-content:center;margin-bottom:18px;transition:all .3s}
.feature-icon svg{width:24px;height:24px;fill:var(--accent);transition:fill .3s}
.feature-card:hover .feature-icon{background:var(--main)}
.feature-card:hover .feature-icon svg{fill:var(--accent)}
.feature-card h3{font-size:19px;margin-bottom:10px;color:var(--ink)}
.feature-card p{font-size:14px;color:var(--ink-2);line-height:1.7}

/* Demo */
.demo{background:#EFECE4;position:relative;overflow:hidden}
.demo-inner{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.demo-text h2{font-size:32px;color:var(--ink);margin-bottom:16px}
.demo-text p{color:var(--ink-2);font-size:15px;line-height:1.75;margin-bottom:14px}
.demo-points{margin-top:20px;margin-bottom:28px}
.demo-points li{display:flex;align-items:flex-start;gap:10px;padding:8px 0;font-size:15px;color:var(--ink)}
.demo-points li::before{content:'';width:8px;height:8px;background:var(--accent);border-radius:2px;margin-top:8px;flex-shrink:0}
.touch-btn{display:inline-block;padding:12px 30px;border:1.5px solid var(--main);color:var(--main);border-radius:var(--radius-pill);font-weight:600;font-size:15px;transition:all .25s}
.touch-btn:hover{background:var(--main);color:var(--accent)}
.demo-window{position:relative}
.demo-window::before{content:'';position:absolute;inset:12px -12px -12px 12px;background:var(--main);border-radius:18px;z-index:0}
.demo-window-inner{position:relative;z-index:1;background:var(--white);border-radius:16px;box-shadow:var(--shadow-2);overflow:hidden}
.demo-topbar{display:flex;align-items:center;gap:6px;padding:12px 16px;background:var(--light-bg);border-bottom:1px solid var(--border-light)}
.demo-topbar i{width:10px;height:10px;border-radius:50%;background:#CCC}
.demo-topbar i:nth-child(2){background:#AAA}
.demo-topbar i:nth-child(3){background:var(--accent)}
.demo-body{position:relative;height:300px;background:var(--dark-bg)}
.demo-body img{width:100%;height:100%;object-fit:cover;opacity:0.75}
.demo-body::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,20,18,0.1),rgba(11,20,18,0.6))}
.demo-statusbar{display:flex;justify-content:space-between;padding:8px 16px;font-family:'SF Mono',Menlo,Consolas,monospace;font-size:11px;color:var(--ink-3);background:var(--light-bg);border-top:1px solid var(--border-light)}

/* Evidence */
.evidence{background:var(--dark-bg);position:relative;color:var(--white)}
.evidence::before{content:'';position:absolute;top:0;right:0;width:400px;height:400px;background:url('/assets/images/backpic/back-2.webp') no-repeat center/cover;opacity:0.12;border-radius:50%}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;margin-bottom:72px}
.metric{text-align:center;padding:24px 16px;border-right:1px solid var(--border-dark)}
.metric:last-child{border-right:none}
.metric-num{font-family:var(--serif);font-size:56px;font-weight:700;color:var(--accent);display:block;line-height:1.2}
.metric-label{display:block;font-size:14px;color:var(--white-2);margin-top:8px}
.evidence-list{display:flex;align-items:stretch;gap:24px}
.evidence-card{background:var(--card-dark);border-radius:var(--radius-card);padding:32px 28px;border:1px solid var(--border-dark);display:flex;flex-direction:column}
.evidence-card.wide{flex:1.25}
.evidence-card.narrow{flex:0.85}
.evidence-stars{color:var(--accent);letter-spacing:2px;font-size:16px;margin-bottom:14px}
.evidence-text{font-size:14px;color:rgba(245,243,238,0.85);line-height:1.75;flex:1}
.evidence-author{margin-top:20px;font-size:13px;color:var(--white-2);border-top:1px solid var(--border-dark);padding-top:16px}

/* Pricing */
.pricing{background:var(--light-bg)}
.pricing-head{margin-bottom:56px;text-align:center}
.pricing-head .section-desc{margin:0 auto}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.price-card{background:var(--white);border-radius:16px;padding:36px 28px;box-shadow:var(--shadow-1);border:1px solid var(--border-light);display:flex;flex-direction:column;position:relative;transition:all .3s}
.price-card:hover{box-shadow:var(--shadow-2)}
.price-card.featured{background:var(--main);color:var(--white);transform:scale(1.04);z-index:2;border-color:transparent;box-shadow:var(--shadow-2)}
.price-badge{position:absolute;top:-12px;right:24px;background:var(--accent);color:var(--main);font-size:12px;font-weight:700;padding:4px 16px;border-radius:var(--radius-pill)}
.plan-name{font-size:18px;font-weight:700;margin-bottom:12px}
.plan-price{font-family:var(--serif);font-size:52px;font-weight:700;color:var(--main);margin-bottom:4px;line-height:1.1}
.featured .plan-price{color:var(--accent)}
.plan-unit{font-size:14px;color:var(--ink-3);margin-bottom:20px;font-family:var(--serif)}
.featured .plan-unit{color:var(--white-2)}
.plan-list{margin:20px 0 28px;flex:1}
.plan-list li{display:flex;align-items:center;gap:10px;padding:7px 0;font-size:14px;color:var(--ink-2)}
.featured .plan-list li{color:rgba(245,243,238,0.85)}
.plan-list li::before{content:'✓';width:20px;height:20px;border-radius:50%;background:rgba(201,169,106,0.15);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:11px;flex-shrink:0}
.featured .plan-list li::before{background:rgba(201,169,106,0.25)}
.plan-btn{display:block;text-align:center;padding:13px;border-radius:var(--radius-pill);font-weight:600;font-size:15px;border:1.5px solid var(--main);color:var(--main);transition:all .25s}
.plan-btn:hover{background:var(--main);color:var(--accent)}
.featured .plan-btn{background:var(--accent);color:var(--main);border-color:var(--accent)}
.featured .plan-btn:hover{background:var(--white);color:var(--main);border-color:var(--white)}

/* FAQ */
.faq{background:#EFECE4}
.faq-head{margin-bottom:44px;text-align:center}
.faq-list{max-width:820px;margin:0 auto}
.faq-item{background:var(--white);border-radius:12px;border:1px solid var(--border-light);margin-bottom:14px;overflow:hidden;transition:box-shadow .3s,border-color .3s}
.faq-item.open{border-color:var(--main);box-shadow:var(--shadow-1)}
.faq-q{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;cursor:pointer;font-size:17px;font-weight:700;color:var(--ink)}
.faq-q .plus{width:28px;height:28px;border-radius:50%;background:rgba(14,59,50,0.06);display:flex;align-items:center;justify-content:center;transition:transform .3s,background .3s;position:relative;flex-shrink:0}
.faq-q .plus::before,.faq-q .plus::after{content:'';position:absolute;background:var(--main);border-radius:2px}
.faq-q .plus::before{width:12px;height:2px}
.faq-q .plus::after{width:2px;height:12px}
.faq-item.open .plus{transform:rotate(45deg);background:var(--main)}
.faq-item.open .plus::before,.faq-item.open .plus::after{background:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a-inner{padding:0 24px 20px;font-size:14px;color:var(--ink-2);line-height:1.75}

/* News CMS */
.news-section{background:var(--light-bg)}
.news-head{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:40px}
.news-more{font-size:14px;color:var(--main);font-weight:600;display:inline-flex;align-items:center;gap:6px;transition:gap .2s}
.news-more:hover{gap:10px;color:var(--accent)}
.news-layout{display:grid;grid-template-columns:1.2fr 0.8fr;gap:32px}
.news-feature{background:var(--white);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);display:block;transition:all .3s;border:1px solid var(--border-light)}
.news-feature:hover{box-shadow:var(--shadow-2);transform:translateY(-3px)}
.news-feature-img{height:240px;overflow:hidden}
.news-feature-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.news-feature:hover .news-feature-img img{transform:scale(1.04)}
.news-feature-body{padding:24px}
.news-cat{display:inline-block;background:rgba(201,169,106,0.15);color:var(--main);font-size:12px;font-weight:600;padding:4px 14px;border-radius:var(--radius-pill);margin-bottom:12px}
.news-feature-body h3{font-size:20px;margin-bottom:10px;color:var(--ink);line-height:1.4}
.news-feature-body p{font-size:14px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px}
.news-date{font-size:12px;color:var(--ink-3);font-family:var(--serif)}
.news-list-side{display:flex;flex-direction:column;gap:14px}
.news-row{background:var(--white);border-radius:var(--radius-card);padding:16px;display:grid;grid-template-columns:80px 1fr;gap:14px;box-shadow:var(--shadow-1);transition:all .3s;border:1px solid var(--border-light)}
.news-row:hover{box-shadow:var(--shadow-2);transform:translateY(-3px)}
.news-row-img{width:80px;height:80px;border-radius:8px;overflow:hidden}
.news-row-img img{width:100%;height:100%;object-fit:cover}
.news-row-body h4{font-size:15px;font-weight:600;color:var(--ink);line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:6px}
.news-row-body p{font-size:12px;color:var(--ink-3);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:6px}
.news-empty{grid-column:1/-1;text-align:center;padding:60px 0;color:var(--ink-3)}
.news-empty svg{width:56px;height:56px;fill:rgba(26,33,30,0.15);margin-bottom:12px}
.news-empty p{font-size:14px}

/* CTA */
.cta-section{background:var(--main);position:relative;text-align:center;padding:90px 0;overflow:hidden}
.cta-section::before,.cta-section::after{content:'';position:absolute;top:50%;width:280px;height:1px;background:linear-gradient(90deg,transparent,var(--accent));z-index:1}
.cta-section::before{left:24px}
.cta-section::after{right:24px;background:linear-gradient(90deg,var(--accent),transparent)}
.cta-section h2{color:var(--white);font-size:34px;margin-bottom:12px}
.cta-section p{color:var(--white-2);font-size:15px;margin-bottom:32px}
.cta-section .btn-primary:hover{background:var(--white);border-color:var(--white)}

/* Footer */
.site-footer{background:#091512;color:rgba(245,243,238,0.75);padding:64px 0 32px;border-top:1px solid rgba(201,169,106,0.15)}
.footer-grid{display:grid;grid-template-columns:1.4fr 0.8fr 1fr;gap:48px;margin-bottom:48px}
.footer-brand .brand-logo{margin-bottom:14px}
.footer-desc{font-size:14px;color:var(--white-2);line-height:1.75;max-width:320px;margin-bottom:20px}
.social-row{display:flex;gap:10px}
.social-btn{width:36px;height:36px;border-radius:50%;border:1px solid var(--border-dark);display:flex;align-items:center;justify-content:center;color:var(--white-2);transition:all .25s}
.social-btn:hover{border-color:var(--accent);color:var(--accent)}
.social-btn svg{width:16px;height:16px;fill:currentColor}
.footer-title{font-size:15px;font-weight:700;color:var(--white);margin-bottom:18px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:var(--white-2);transition:color .2s}
.footer-links a:hover{color:var(--accent)}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;margin-bottom:12px;font-size:14px;color:var(--white-2)}
.footer-contact li svg{width:16px;height:16px;fill:var(--accent);flex-shrink:0;margin-top:4px}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.08);padding-top:24px;text-align:center;font-size:12px;color:var(--ink-3)}
.footer-bottom span{margin:0 10px}

/* Floating CTA */
.float-cta{position:fixed;bottom:24px;right:24px;z-index:200;display:flex;align-items:center;gap:0}
.float-main{width:64px;height:64px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;box-shadow:0 4px 24px rgba(201,169,106,0.4);animation:pulse 2.8s infinite;transition:all .3s;position:relative;z-index:2}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(201,169,106,0.5)}50%{box-shadow:0 0 0 18px rgba(201,169,106,0)}100%{box-shadow:0 0 0 0 rgba(201,169,106,0)}}
.float-main svg{width:24px;height:24px;fill:var(--main)}
.float-label{position:absolute;right:64px;background:var(--main);color:var(--white);font-size:13px;padding:6px 16px;border-radius:var(--radius-pill);white-space:nowrap;opacity:0;visibility:hidden;transform:translateX(8px);transition:all .3s}
.float-main:hover .float-label{opacity:1;visibility:visible;transform:translateX(0)}
.float-bottom{position:fixed;bottom:24px;left:24px;z-index:200;background:#2E7D5B;color:var(--white);padding:14px 24px;border-radius:var(--radius-pill);display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600;box-shadow:0 6px 24px rgba(46,125,91,0.35);transition:all .3s;display:none}
.float-bottom:hover{transform:translateY(-3px);filter:brightness(1.1)}

/* Reveal animation */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease-out,transform .6s ease-out}
.reveal.visible{opacity:1;transform:translateY(0)}

/* Responsive */
@media(max-width:1024px){
  :root{--space-section:72px}
  .hero h1{font-size:42px}
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .metric:nth-child(2){border-right:none}
  .metric:nth-child(n+3){border-top:1px solid var(--border-dark)}
}
@media(max-width:768px){
  .header-inner{grid-template-columns:auto 1fr auto}
  .nav-left,.nav-right{display:none}
  .burger{display:flex}
  .hero{padding-top:100px}
  .hero h1{font-size:32px}
  .hero-sub{font-size:15px}
  .hero-actions{flex-direction:column}
  .hero-actions .btn-primary,.hero-actions .btn-outline{text-align:center}
  .hero-badges{position:static;margin-top:24px}
  .features-grid{grid-template-columns:1fr}
  .feature-card:nth-child(2){margin-left:0}
  .demo-inner{grid-template-columns:1fr}
  .demo-window{max-width:500px;margin:0 auto}
  .evidence-list{flex-direction:column}
  .evidence-card.wide,.evidence-card.narrow{flex:1}
  .pricing-grid{grid-template-columns:1fr;gap:32px}
  .price-card.featured{transform:scale(1.02)}
  .news-layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .cta-section::before,.cta-section::after{display:none}
  .float-bottom{width:48px;height:48px;padding:0;border-radius:50%;justify-content:center;overflow:hidden;font-size:0;animation:none}
  .float-bottom svg{width:20px;height:20px}
  .float-main{width:56px;height:56px}
  .section-title{font-size:26px}
  .container{padding:0 16px}
}
@media(max-width:520px){
  .brand-logo{font-size:16px}
  .hero h1{font-size:28px}
  .metric-num{font-size:40px}
  .metrics-grid{grid-template-columns:1fr 1fr}
  .news-row{grid-template-columns:68px 1fr}
  .news-row-img{width:68px;height:68px}
  .demo-body{height:200px}
}

/* roulang page: category1 */
:root {
      --primary: #0E3B32;
      --accent: #C9A96A;
      --bg-light: #F7F5F0;
      --bg-dark: #0B1412;
      --card-dark: #15201D;
      --text-main: #1A211E;
      --text-secondary: #5C6A65;
      --text-muted: #8B9894;
      --text-on-dark: #F5F3EE;
      --text-on-dark-secondary: #A8B5B0;
      --success: #2E7D5B;
      --warning: #D97742;
      --border-light: rgba(26,33,30,0.08);
      --border-dark: rgba(255,255,255,0.12);
      --radius-lg: 16px;
      --radius-md: 14px;
      --radius-sm: 8px;
      --shadow-sm: 0 2px 8px rgba(11,20,18,0.06);
      --shadow-hover: 0 14px 36px rgba(11,20,18,0.14);
      --transition: 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
    }

    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-margin-top: 88px; }
    body {
      margin: 0;
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      font-size: 15px;
      line-height: 1.75;
      color: var(--text-main);
      background: var(--bg-light);
      -webkit-font-smoothing: antialiased;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: inherit; text-decoration: none; transition: color 0.25s; }
    a:hover { color: var(--accent); }
    ul { list-style: none; margin: 0; padding: 0; }

    .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
    h1, h2, h3, h4, h5 { font-weight: 700; color: var(--text-main); margin: 0 0 16px; line-height: 1.3; }
    h1 { font-size: 36px; }
    h2 { font-size: 30px; }
    h3 { font-size: 20px; }
    .serif { font-family: Georgia, "Times New Roman", serif; }

    /* ===== Header Navigation ===== */
    .site-header {
      position: fixed;
      top: 0; left: 0; right: 0;
      z-index: 100;
      background: var(--primary);
      height: 72px;
      border-bottom: 1px solid rgba(201,169,106,0.15);
    }
    .header-inner {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      position: relative;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 8px;
      color: #fff;
      font-size: 20px;
      font-weight: 700;
      letter-spacing: 0.02em;
      white-space: nowrap;
      position: absolute;
      left: 50%;
      transform: translateX(-50%);
    }
    .brand-logo svg { width: 24px; height: 24px; fill: var(--accent); flex-shrink: 0; }
    .brand-logo:hover { color: var(--accent); }

    .nav-left, .nav-right { display: flex; align-items: center; gap: 24px; z-index: 1; }
    .nav-link {
      color: var(--text-on-dark-secondary);
      font-size: 14px;
      letter-spacing: 0.03em;
      position: relative;
      padding: 4px 0;
      white-space: nowrap;
    }
    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0; left: 0;
      width: 0; height: 2px;
      background: var(--accent);
      transition: width 0.25s;
    }
    .nav-link:hover { color: #fff; }
    .nav-link:hover::after { width: 100%; }
    .nav-link.active { color: var(--accent); }
    .nav-link.active::after { width: 100%; }

    .nav-cta {
      background: var(--accent);
      color: var(--text-main);
      font-size: 14px;
      font-weight: 700;
      padding: 10px 24px;
      border-radius: 999px;
      transition: var(--transition);
      white-space: nowrap;
      display: inline-block;
    }
    .nav-cta:hover { background: #fff; color: var(--primary); }

    .burger { display: none; cursor: pointer; padding: 8px; }
    .burger span { display: block; width: 22px; height: 2px; background: #fff; border-radius: 2px; margin: 5px 0; transition: var(--transition); }

    .mobile-menu {
      display: none;
      position: fixed;
      top: 72px; left: 0; right: 0;
      background: var(--primary);
      padding: 24px 24px 32px;
      flex-direction: column;
      z-index: 99;
      border-bottom: 1px solid rgba(201,169,106,0.15);
    }
    .mobile-menu.open { display: flex; }
    .mobile-menu a {
      color: var(--text-on-dark-secondary);
      font-size: 15px;
      padding: 14px 0;
      border-bottom: 1px solid rgba(255,255,255,0.06);
    }
    .mobile-menu a.active { color: var(--accent); }
    .mobile-menu .nav-cta { margin-top: 16px; text-align: center; border: none; }

    /* ===== Page Hero ===== */
    .page-hero {
      position: relative;
      padding: 160px 0 80px;
      background: linear-gradient(rgba(11,20,18,0.88), rgba(11,20,18,0.92)), url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      color: var(--text-on-dark);
      margin-top: 72px;
    }
    .page-hero h1 { color: #fff; font-size: 42px; margin-bottom: 16px; }
    .page-hero .hero-lead { color: var(--text-on-dark-secondary); font-size: 16px; max-width: 720px; line-height: 1.7; }
    .hero-badge {
      display: inline-block;
      background: rgba(255,255,255,0.08);
      border: 1px solid rgba(255,255,255,0.2);
      color: var(--accent);
      font-size: 12px;
      padding: 6px 16px;
      border-radius: 999px;
      letter-spacing: 0.04em;
      margin-bottom: 20px;
    }

    /* ===== Section ===== */
    .sec { padding: 90px 0; }
    .sec-light { background: var(--bg-light); }
    .sec-white { background: #fff; }
    .sec-dark { background: var(--bg-dark); color: var(--text-on-dark); }
    .sec-head { text-align: center; margin-bottom: 56px; }
    .sec-head h2 { font-size: 30px; margin-bottom: 12px; }
    .sec-head p { color: var(--text-secondary); max-width: 600px; margin: 0 auto; font-size: 15px; }
    .sec-dark .sec-head h2 { color: #fff; }
    .sec-dark .sec-head p { color: var(--text-on-dark-secondary); }

    /* ===== Split Section ===== */
    .split-section {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 64px;
      align-items: center;
      max-width: 1200px;
      margin: 0 auto;
      padding: 90px 24px;
    }
    .split-image { position: relative; }
    .split-image img { width: 100%; border-radius: var(--radius-lg); box-shadow: var(--shadow-hover); }
    .split-image::after {
      content: '';
      position: absolute;
      top: 20px; left: 20px;
      width: 100%; height: 100%;
      border: 2px solid var(--accent);
      border-radius: var(--radius-lg);
      z-index: -1;
      opacity: 0.4;
    }
    .split-content h2 { font-size: 28px; margin-bottom: 20px; }
    .split-content p { color: var(--text-secondary); margin-bottom: 16px; }
    .split-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .split-list svg { width: 20px; height: 20px; fill: var(--accent); flex-shrink: 0; margin-top: 4px; }
    .btn {
      display: inline-block;
      padding: 14px 32px;
      border-radius: 999px;
      font-size: 15px;
      font-weight: 700;
      border: none;
      cursor: pointer;
      transition: var(--transition);
      background: var(--primary);
      color: #fff;
    }
    .btn:hover { background: var(--accent); color: var(--text-main); }
    .btn-gold { background: var(--accent); color: var(--text-main); }
    .btn-gold:hover { background: var(--primary); color: #fff; }
    .btn-outline { background: transparent; border: 1px solid rgba(255,255,255,0.4); color: #fff; }
    .btn-outline:hover { border-color: var(--accent); color: var(--accent); background: transparent; }

    /* ===== Feature Grid ===== */
    .feature-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }
    .feature-card {
      background: #fff;
      border-radius: var(--radius-md);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-light);
      transition: var(--transition);
    }
    .feature-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
    .feature-icon {
      width: 44px; height: 44px;
      border-radius: var(--radius-sm);
      background: rgba(14,59,50,0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
      transition: var(--transition);
    }
    .feature-icon svg { width: 22px; height: 22px; fill: var(--accent); transition: var(--transition); }
    .feature-card:hover .feature-icon { background: var(--primary); }
    .feature-card:hover .feature-icon svg { fill: var(--accent); }
    .feature-card h3 { font-size: 18px; margin-bottom: 8px; }
    .feature-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.65; margin: 0; }

    /* ===== Steps ===== */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }
    .step-card {
      background: var(--card-dark);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      position: relative;
      transition: var(--transition);
    }
    .step-card:hover { transform: translateY(-4px); border-color: rgba(201,169,106,0.4); }
    .step-num { font-family: Georgia, serif; font-size: 52px; color: var(--accent); line-height: 1; margin-bottom: 14px; display: block; opacity: 0.85; }
    .step-card h3 { color: #fff; font-size: 17px; margin-bottom: 10px; }
    .step-card p { color: var(--text-on-dark-secondary); font-size: 14px; margin: 0; }

    /* ===== Related Categories ===== */
    .related-section { padding: 60px 0; background: var(--bg-light); }
    .related-inner { max-width: 1200px; margin: 0 auto; padding: 0 24px; text-align: center; }
    .related-inner h3 { margin-bottom: 28px; font-size: 22px; }
    .related-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
    .related-link {
      display: inline-block;
      padding: 10px 28px;
      border-radius: 999px;
      background: #fff;
      border: 1px solid var(--border-light);
      color: var(--text-secondary);
      font-size: 14px;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
    }
    .related-link:hover {
      background: var(--accent);
      color: var(--text-main);
      border-color: var(--accent);
      transform: translateY(-2px);
      box-shadow: var(--shadow-hover);
    }
    .related-link.active { background: var(--primary); color: #fff; border-color: var(--primary); }
    .related-link.active:hover { background: var(--accent); color: var(--text-main); }

    /* ===== CTA ===== */
    .cta-section {
      background: var(--primary);
      text-align: center;
      padding: 80px 24px;
      position: relative;
      overflow: hidden;
    }
    .cta-section::before,
    .cta-section::after {
      content: '';
      position: absolute;
      top: 50%;
      width: 260px;
      height: 1px;
    }
    .cta-section::before { left: 0; background: linear-gradient(to right, transparent, var(--accent)); }
    .cta-section::after { right: 0; background: linear-gradient(to left, transparent, var(--accent)); }
    .cta-section h2 { color: #fff; font-size: 28px; margin-bottom: 12px; }
    .cta-section p { color: var(--text-on-dark-secondary); margin-bottom: 32px; font-size: 15px; }
    .cta-section .btn { font-size: 16px; padding: 16px 42px; }

    /* ===== Footer ===== */
    .site-footer {
      background: #091512;
      border-top: 1px solid rgba(201,169,106,0.15);
      padding: 64px 0 32px;
      color: var(--text-on-dark-secondary);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 48px;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }
    .footer-brand .brand-logo { position: static; transform: none; color: #fff; font-size: 20px; margin-bottom: 16px; }
    .footer-desc { font-size: 14px; color: var(--text-on-dark-secondary); margin-bottom: 24px; line-height: 1.7; max-width: 320px; }
    .social-row { display: flex; gap: 12px; }
    .social-btn {
      width: 36px; height: 36px;
      border-radius: 50%;
      border: 1px solid var(--border-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      transition: var(--transition);
      background: transparent;
    }
    .social-btn svg { width: 16px; height: 16px; fill: var(--text-on-dark-secondary); }
    .social-btn:hover { border-color: var(--accent); background: rgba(201,169,106,0.1); }
    .social-btn:hover svg { fill: var(--accent); }
    .footer-title { color: #fff; font-size: 16px; margin-bottom: 20px; position: relative; padding-bottom: 10px; }
    .footer-title::after {
      content: '';
      position: absolute;
      bottom: 0; left: 0;
      width: 28px; height: 2px;
      background: var(--accent);
    }
    .footer-links li, .footer-contact li { margin-bottom: 12px; font-size: 14px; }
    .footer-links a { color: var(--text-on-dark-secondary); }
    .footer-links a:hover { color: var(--accent); }
    .footer-contact li { display: flex; align-items: flex-start; gap: 8px; }
    .footer-contact svg { width: 16px; height: 16px; fill: var(--accent); flex-shrink: 0; margin-top: 3px; }
    .footer-bottom {
      max-width: 1200px;
      margin: 40px auto 0;
      padding: 20px 24px 0;
      border-top: 1px solid rgba(255,255,255,0.08);
      font-size: 12px;
      color: var(--text-muted);
      text-align: center;
    }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
      .nav-left, .nav-right { gap: 16px; }
      .nav-link { font-size: 13px; }
      .feature-grid { grid-template-columns: repeat(2, 1fr); }
      .steps-grid { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 768px) {
      .header-inner { padding: 0 16px; }
      .nav-left, .nav-right { display: none; }
      .brand-logo { position: static; transform: none; font-size: 17px; }
      .burger { display: block; }

      .page-hero { padding: 120px 0 56px; margin-top: 72px; }
      .page-hero h1 { font-size: 30px; }
      .hero-lead { font-size: 15px; }

      .split-section { grid-template-columns: 1fr; gap: 32px; padding: 60px 16px; }
      .split-content h2 { font-size: 24px; }

      .feature-grid, .steps-grid { grid-template-columns: 1fr; padding: 0 16px; }
      .sec { padding: 56px 0; }
      .sec-head h2 { font-size: 24px; }

      .footer-grid { grid-template-columns: 1fr; gap: 32px; padding: 0 16px; }
      .footer-bottom { padding-left: 16px; padding-right: 16px; }
      .cta-section { padding: 64px 16px; }
      .cta-section h2 { font-size: 24px; }
      .cta-section::before, .cta-section::after { width: 120px; }
    }

    @media (max-width: 520px) {
      .page-hero h1 { font-size: 26px; }
      .split-content h2 { font-size: 22px; }
      .related-inner { padding: 0 16px; }
      .related-links { gap: 8px; }
      .related-link { padding: 8px 20px; font-size: 13px; }
      .btn { padding: 14px 28px; font-size: 14px; }
      h2 { font-size: 24px; }
    }

    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after {
        animation: none !important;
        transition: none !important;
      }
      html { scroll-behavior: auto; }
    }

/* roulang page: article */
:root {
  --primary: #0E3B32;
  --primary-dark: #0B1412;
  --primary-deep: #091512;
  --accent: #C9A96A;
  --accent-light: rgba(201,169,106,0.18);
  --bg-light: #F7F5F0;
  --bg-dark: #0B1412;
  --card: #FFFFFF;
  --card-dark: #15201D;
  --text-main: #1A211E;
  --text-secondary: #5C6A65;
  --text-muted: #8B9894;
  --text-on-dark: #F5F3EE;
  --text-on-dark-secondary: #A8B5B0;
  --border: rgba(26,33,30,0.08);
  --border-dark: rgba(255,255,255,0.12);
  --radius: 14px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow-sm: 0 2px 8px rgba(11,20,18,0.06);
  --shadow-hover: 0 14px 36px rgba(11,20,18,0.14);
  --shadow-float: 0 10px 44px rgba(11,20,18,0.28);
  --space-section: 96px;
  --container: 1280px;
  --header-h: 72px;
  --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-main);
  background: var(--bg-light);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s ease; }
button { font-family: inherit; }
ul, ol { list-style: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: var(--space-section) 0; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 46px; padding: 0 30px; border-radius: var(--radius-pill);
  font-size: 14px; font-weight: 700; letter-spacing: .03em;
  border: 1px solid transparent; cursor: pointer;
  transition: all .25s cubic-bezier(.25,.1,.25,1);
  white-space: nowrap;
}
.btn:active { transform: scale(.97); }
.btn:focus-visible { outline: 3px solid rgba(14,59,50,.25); outline-offset: 2px; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--accent); color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.btn-gold { background: var(--accent); color: var(--primary); }
.btn-gold:hover { background: var(--primary); color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.btn-ghost { background: transparent; color: var(--primary); border-color: rgba(14,59,50,.35); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-ghost-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.4); }
.btn-ghost-light:hover { border-color: var(--accent); color: var(--accent); }

/* ===== Header ===== */
.site-header {
  position: fixed; top: 0; left: 0; width: 100%; height: var(--header-h);
  background: var(--primary); border-bottom: 1px solid rgba(201,169,106,.15);
  z-index: 1000;
}
.header-inner {
  max-width: var(--container); height: 100%; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; gap: 24px;
}
.nav-left, .nav-right { display: flex; align-items: center; gap: 22px; }
.brand-logo {
  display: inline-flex; align-items: center; gap: 9px;
  color: #fff; font-size: 20px; font-weight: 700; letter-spacing: .02em;
  white-space: nowrap;
}
.brand-logo svg { width: 24px; height: 24px; fill: var(--accent); flex-shrink: 0; }
.nav-link {
  color: rgba(255,255,255,.78); font-size: 14px; letter-spacing: .03em;
  position: relative; padding: 4px 2px;
}
.nav-link::after {
  content: ""; position: absolute; left: 0; bottom: -3px;
  width: 0; height: 2px; background: var(--accent);
  transition: width .25s ease;
}
.nav-link:hover { color: #fff; }
.nav-link:hover::after { width: 100%; }
.nav-link.active { color: var(--accent); }
.nav-link.active::after { width: 100%; }
.nav-cta {
  background: var(--accent); color: var(--primary) !important;
  padding: 7px 18px; border-radius: var(--radius-pill);
  font-weight: 700; font-size: 13px; letter-spacing: .04em;
  transition: all .25s ease;
}
.nav-cta:hover { background: #fff; color: var(--primary) !important; transform: translateY(-1px); box-shadow: 0 4px 14px rgba(0,0,0,.18); }
.burger { display: none; cursor: pointer; flex-direction: column; gap: 5px; padding: 6px; }
.burger span { display: block; width: 22px; height: 2px; background: #fff; border-radius: 2px; transition: all .3s ease; }
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-menu {
  display: none;
}
.mobile-menu.open {
  position: fixed; top: var(--header-h); left: 0; right: 0;
  background: var(--primary); padding: 16px 24px 28px;
  flex-direction: column; gap: 4px;
  box-shadow: 0 24px 40px rgba(0,0,0,.3);
  z-index: 999;
}
.mobile-menu .mobile-link {
  display: block; color: rgba(255,255,255,.88); font-size: 16px;
  padding: 14px 4px; border-bottom: 1px solid rgba(255,255,255,.08);
}
.mobile-menu .mobile-link:hover { color: var(--accent); }
.mobile-menu .mobile-cta {
  margin-top: 16px; background: var(--accent); color: var(--primary);
  text-align: center; padding: 12px; border-radius: var(--radius-pill);
  font-size: 15px; font-weight: 700;
}

/* ===== Article Page ===== */
.article-page {
  padding: calc(var(--header-h) + 24px) 0 80px;
  background: var(--bg-light);
  min-height: 60vh;
}
.breadcrumb-row {
  max-width: var(--container); margin: 0 auto 28px; padding: 0 24px;
  font-size: 12px; color: var(--text-muted);
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
}
.breadcrumb-row a { color: var(--text-secondary); }
.breadcrumb-row a:hover { color: var(--accent); }
.breadcrumb-row .sep { opacity: .5; }
.breadcrumb-row .current { color: var(--text-muted); max-width: 360px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.article-inner {
  max-width: 820px; margin: 0 auto; padding: 0 24px;
  background: var(--card);
  border-radius: 18px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  padding: 44px 52px 52px;
}
.article-header h1 {
  font-size: 34px; font-weight: 700; line-height: 1.4;
  color: var(--text-main); margin-bottom: 18px;
  letter-spacing: -0.02em;
}
.article-meta {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
  font-size: 12px; color: var(--text-muted);
  padding-bottom: 22px; border-bottom: 1px solid var(--border);
  margin-bottom: 8px;
}
.article-meta .dot { width: 3px; height: 3px; background: var(--text-muted); border-radius: 50%; display: inline-block; }
.article-meta a { color: var(--text-secondary); }
.article-meta a:hover { color: var(--accent); }
.article-body { padding: 28px 0 8px; font-size: 16px; line-height: 1.85; color: var(--text-main); }
.article-body p { margin-bottom: 24px; }
.article-body h2 { font-size: 24px; font-weight: 700; line-height: 1.5; margin: 38px 0 16px; color: var(--text-main); letter-spacing: -0.01em; }
.article-body h3 { font-size: 19px; font-weight: 700; line-height: 1.5; margin: 30px 0 12px; color: var(--text-main); }
.article-body h4 { font-size: 17px; font-weight: 700; margin: 24px 0 10px; color: var(--text-main); }
.article-body ul, .article-body ol { margin-bottom: 24px; padding-left: 6px; }
.article-body ul li, .article-body ol li { margin-bottom: 8px; position: relative; padding-left: 22px; }
.article-body ul li::before { content: ""; position: absolute; left: 2px; top: 10px; width: 7px; height: 7px; background: var(--accent); border-radius: 50%; }
.article-body ol { counter-reset: custom; }
.article-body ol li { counter-increment: custom; }
.article-body ol li::before { content: counter(custom); position: absolute; left: 0; top: 2px; font-family: var(--font-serif); font-size: 13px; font-weight: 700; color: var(--accent); }
.article-body a { color: var(--primary); border-bottom: 1px solid rgba(14,59,50,.2); }
.article-body a:hover { color: var(--accent); border-bottom-color: var(--accent); }
.article-body img { border-radius: 12px; margin: 28px auto; border: 1px solid var(--border); }
.article-body blockquote {
  border-left: 4px solid var(--accent);
  background: var(--accent-light);
  padding: 18px 22px;
  border-radius: 0 10px 10px 0;
  margin: 28px 0;
  color: var(--text-secondary);
  font-style: normal;
}
.article-body blockquote p:last-child { margin-bottom: 0; }
.article-body pre {
  background: var(--bg-dark); color: var(--text-on-dark);
  padding: 18px 22px; border-radius: 10px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 13px; line-height: 1.7; overflow-x: auto; margin-bottom: 24px;
}
.article-body code {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
}
.article-body table { width: 100%; margin-bottom: 24px; border-collapse: collapse; font-size: 14px; }
.article-body table th, .article-body table td { padding: 10px 14px; border: 1px solid var(--border); text-align: left; }
.article-body table th { background: var(--bg-light); font-weight: 700; }
.article-body hr { border: none; border-top: 1px solid var(--border); margin: 36px 0; }

/* ===== Not Found ===== */
.not-found {
  max-width: 760px; margin: 0 auto; padding: 80px 24px;
  text-align: center;
}
.not-found .nf-icon { width: 72px; height: 72px; border-radius: 50%; background: var(--accent-light); display: flex; align-items: center; justify-content: center; margin: 0 auto 24px; }
.not-found h1 { font-size: 30px; font-weight: 700; color: var(--text-main); margin-bottom: 12px; }
.not-found p { color: var(--text-secondary); font-size: 15px; margin-bottom: 28px; }

/* ===== Related Posts ===== */
.related-section { max-width: var(--container); margin: 72px auto 0; padding: 0 24px; }
.related-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 30px; }
.related-head h2 { font-size: 26px; font-weight: 700; color: var(--text-main); letter-spacing: -.01em; }
.related-head .more-link { font-size: 13px; color: var(--text-secondary); border-bottom: 1px solid transparent; }
.related-head .more-link:hover { color: var(--accent); border-bottom-color: var(--accent); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card {
  background: var(--card); border-radius: 16px; overflow: hidden;
  border: 1px solid var(--border); box-shadow: var(--shadow-sm);
  transition: all .3s cubic-bezier(.25,.1,.25,1);
  display: block;
}
.related-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
.related-card .rc-img { width: 100%; height: 170px; object-fit: cover; border-bottom: 1px solid var(--border); }
.related-card .rc-body { padding: 18px 20px 20px; }
.related-card h3 { font-size: 16px; font-weight: 700; line-height: 1.45; color: var(--text-main); margin-bottom: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card p { font-size: 13px; color: var(--text-secondary); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 12px; }
.related-card .rc-date { font-size: 12px; color: var(--text-muted); font-family: var(--font-serif); }

/* ===== Article Footer Nav ===== */
.article-footer-nav {
  max-width: var(--container); margin: 48px auto 0; padding: 0 24px;
  display: flex; align-items: center; justify-content: center; gap: 14px;
  flex-wrap: wrap;
}

/* ===== Footer ===== */
.site-footer { background: var(--primary-deep); border-top: 1px solid rgba(201,169,106,.15); padding: 64px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 48px; margin-bottom: 44px; }
.footer-brand .brand-logo { font-size: 18px; margin-bottom: 16px; }
.footer-desc { color: var(--text-on-dark-secondary); font-size: 13px; line-height: 1.7; margin-bottom: 20px; max-width: 360px; }
.social-row { display: flex; gap: 12px; }
.social-btn {
  width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,.16);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--text-on-dark-secondary);
  transition: all .25s ease;
}
.social-btn svg { width: 17px; height: 17px; fill: currentColor; }
.social-btn:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.footer-title { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 18px; letter-spacing: .02em; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: var(--text-on-dark-secondary); font-size: 13px; transition: all .2s; }
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-contact li { display: flex; align-items: flex-start; gap: 10px; color: var(--text-on-dark-secondary); font-size: 13px; margin-bottom: 12px; }
.footer-contact svg { width: 16px; height: 16px; fill: var(--accent); flex-shrink: 0; margin-top: 3px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding-top: 22px; text-align: center; }
.footer-bottom p { color: var(--text-muted); font-size: 12px; letter-spacing: .03em; }
.footer-bottom p + p { margin-top: 4px; }

/* ===== Floating CTA ===== */
.float-cta-main {
  position: fixed; right: 24px; bottom: 28px; z-index: 30;
  width: 64px; height: 64px; border-radius: 50%;
  background: var(--accent); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 24px rgba(0,0,0,.25);
  animation: floatPulse 2.8s infinite ease-in-out;
  transition: all .3s ease;
}
.float-cta-main svg { width: 26px; height: 26px; fill: currentColor; }
.float-cta-main:hover { background: var(--primary); color: var(--accent); transform: scale(1.05); }
.float-cta-sub {
  position: fixed; left: 24px; bottom: 28px; z-index: 30;
  height: 44px; padding: 0 20px; border-radius: var(--radius-pill);
  background: #2E7D5B; color: #fff;
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600;
  box-shadow: 0 6px 20px rgba(0,0,0,.2);
  transition: all .3s ease;
  opacity: 0; visibility: hidden;
}
.float-cta-sub.show { opacity: 1; visibility: visible; }
.float-cta-sub svg { width: 16px; height: 16px; fill: currentColor; }
.float-cta-sub:hover { background: #267049; transform: translateY(-2px); }

/* ===== Animations ===== */
@keyframes floatPulse {
  0% { box-shadow: 0 6px 24px rgba(201,169,106,.35), 0 0 0 0 rgba(201,169,106,.3); }
  70% { box-shadow: 0 6px 24px rgba(201,169,106,.35), 0 0 0 16px rgba(201,169,106,0); }
  100% { box-shadow: 0 6px 24px rgba(201,169,106,.35), 0 0 0 0 rgba(201,169,106,0); }
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-up { opacity: 0; }
.fade-up.visible { animation: fadeUp .6s ease-out forwards; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .nav-left, .nav-right { gap: 14px; }
  .nav-link { font-size: 13px; }
}
@media (max-width: 768px) {
  :root { --space-section: 56px; }
  .nav-left, .nav-right { display: none; }
  .burger { display: flex; }
  .header-inner { padding: 0 16px; }
  .brand-logo { font-size: 17px; }
  .mobile-menu.open { display: flex; }
  .article-page { padding-top: calc(var(--header-h) + 12px); padding-bottom: 48px; }
  .article-inner { padding: 28px 24px 36px; border-radius: 14px; }
  .article-header h1 { font-size: 26px; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .float-cta-main { width: 54px; height: 54px; right: 16px; bottom: 20px; }
  .float-cta-sub { left: 16px; bottom: 20px; height: 42px; padding: 0 16px; font-size: 12px; }
  .article-footer-nav .btn { width: 100%; max-width: 280px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .article-inner { padding: 22px 18px 28px; }
  .breadcrumb-row { padding: 0 16px; }
  .related-head h2 { font-size: 22px; }
  .related-card .rc-img { height: 140px; }
  .float-cta-sub { width: 42px; padding: 0; justify-content: center; }
  .float-cta-sub span { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

/* roulang page: category2 */
:root {
  --primary: #0E3B32;
  --primary-light: #155447;
  --accent: #C9A96A;
  --accent-light: #E0C68E;
  --bg-light: #F7F5F0;
  --bg-dark: #0B1412;
  --bg-card-dark: #15201D;
  --text-dark: #1A211E;
  --text-mid: #5C6A65;
  --text-weak: #8B9894;
  --text-on-dark: #F5F3EE;
  --text-on-dark-sub: #A8B5B0;
  --success: #2E7D5B;
  --warning: #D97742;
  --border-light: rgba(26,33,30,0.08);
  --border-dark: rgba(255,255,255,0.12);
  --radius-card: 14px;
  --radius-img: 8px;
  --radius-btn: 999px;
  --shadow-xs: 0 2px 8px rgba(11,20,18,0.06);
  --shadow-hover: 0 14px 36px rgba(11,20,18,0.14);
  --shadow-float: 0 10px 44px rgba(11,20,18,0.28);
  --container-w: 1200px;
  --space-section: 96px;
  --space-section-mobile: 56px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-dark);
  background: var(--bg-light);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color 0.25s ease; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }

.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ============ Header ============ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 72px;
  background: var(--primary);
  border-bottom: 1px solid rgba(201,169,106,0.15);
  z-index: 1000;
}

.header-inner {
  max-width: var(--container-w);
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.nav-left,
.nav-right {
  display: flex;
  align-items: center;
  gap: 28px;
  flex: 1;
}

.nav-right {
  justify-content: flex-end;
}

.nav-link {
  font-size: 14px;
  letter-spacing: 0.03em;
  color: rgba(255,255,255,0.75);
  padding: 8px 0;
  position: relative;
  transition: color 0.25s ease;
  white-space: nowrap;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.25s ease;
}

.nav-link:hover,
.nav-link.active {
  color: #ffffff;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-link.active {
  color: var(--accent);
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #ffffff;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.brand-logo svg {
  width: 24px;
  height: 24px;
  fill: var(--accent);
  flex-shrink: 0;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 24px;
  background: var(--accent);
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius-btn);
  transition: background 0.25s ease, color 0.25s ease, transform 0.2s ease;
  white-space: nowrap;
}

.nav-cta:hover {
  background: #ffffff;
  color: var(--primary);
}

.nav-cta:active {
  transform: scale(0.97);
}

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
  z-index: 1100;
}

.burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #ffffff;
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

/* ============ Footer ============ */
.site-footer {
  background: #091512;
  border-top: 1px solid rgba(201,169,106,0.15);
  padding: 64px 0 32px;
  margin-top: 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand .brand-logo {
  margin-bottom: 16px;
}

.footer-desc {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 340px;
}

.social-row {
  display: flex;
  gap: 12px;
}

.social-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-dark);
  border-radius: 50%;
  color: var(--text-on-dark-sub);
  transition: border-color 0.3s ease, color 0.3s ease;
}

.social-btn svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.social-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.footer-title {
  font-size: 16px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 20px;
}

.footer-links li,
.footer-contact li {
  margin-bottom: 12px;
}

.footer-links a {
  font-size: 14px;
  color: var(--text-weak);
  transition: color 0.3s ease;
}

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

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.6;
}

.footer-contact svg {
  width: 16px;
  height: 16px;
  fill: var(--accent);
  flex-shrink: 0;
  margin-top: 3px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  text-align: center;
}

.footer-copyright {
  font-size: 12px;
  color: var(--text-weak);
  letter-spacing: 0.04em;
}

/* ============ Page Hero (Category2) ============ */
.page-hero {
  background: var(--bg-dark);
  padding: 160px 0 72px;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 55%;
  height: 100%;
  background: url('/assets/images/backpic/back-2.webp') no-repeat center center / cover;
  opacity: 0.25;
  -webkit-mask-image: linear-gradient(to right, transparent, #000 80%);
  mask-image: linear-gradient(to right, transparent, #000 80%);
}

.page-hero .container {
  position: relative;
  z-index: 2;
}

.page-hero h1 {
  font-size: 42px;
  font-weight: 700;
  color: var(--text-on-dark);
  line-height: 1.3;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}

.page-hero .breadcrumb {
  font-size: 13px;
  color: var(--text-on-dark-sub);
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}

.page-hero .breadcrumb a {
  color: var(--text-on-dark-sub);
  transition: color 0.25s ease;
}

.page-hero .breadcrumb a:hover {
  color: var(--accent);
}

.page-hero .breadcrumb span {
  margin: 0 8px;
  color: var(--text-weak);
}

.page-hero p.lead {
  font-size: 16px;
  color: var(--text-on-dark-sub);
  max-width: 640px;
  line-height: 1.8;
}

.xhx {
  width: 48px;
  height: 2px;
  background: var(--accent);
  margin: 24px 0;
  display: block;
}

/* ============ Main Sections ============ */
.main {
  overflow: hidden;
}

.section {
  padding: var(--space-section) 0;
}

.section-alt {
  background: var(--bg-dark);
}

.section-head {
  text-align: center;
  margin-bottom: 56px;
}

.section-head h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-dark);
  letter-spacing: -0.5px;
  margin-bottom: 12px;
  line-height: 1.35;
}

.section-alt .section-head h2 {
  color: var(--text-on-dark);
}

.section-head .sec-sub {
  font-size: 15px;
  color: var(--text-mid);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

.section-alt .section-head .sec-sub {
  color: var(--text-on-dark-sub);
}

/* ============ Single Column Article Layout ============ */
.article-single {
  max-width: 780px;
  margin: 0 auto;
}

.article-single .article-lead {
  font-size: 17px;
  line-height: 1.85;
  color: var(--text-mid);
  margin-bottom: 32px;
  padding: 24px 28px;
  background: #ffffff;
  border-left: 3px solid var(--accent);
  border-radius: 0 12px 12px 0;
  box-shadow: var(--shadow-xs);
}

.article-single h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-dark);
  margin-top: 48px;
  margin-bottom: 18px;
  line-height: 1.4;
  letter-spacing: -0.3px;
}

.article-single p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-mid);
  margin-bottom: 20px;
}

.article-single .article-image {
  margin: 24px 0 28px;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
  border: 1px solid var(--border-light);
}

.article-single .article-image img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.article-single .img-caption {
  font-size: 13px;
  color: var(--text-weak);
  text-align: center;
  padding: 12px 16px;
  background: #f0eee9;
  border-top: 1px solid var(--border-light);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0 28px;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 5px 14px;
  background: rgba(14,59,50,0.08);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-btn);
  letter-spacing: 0.02em;
}

/* ============ Experience Cards ============ */
.xp-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 48px;
}

.xp-card {
  background: var(--bg-card-dark);
  border-radius: var(--radius-card);
  padding: 28px;
  border: 1px solid var(--border-dark);
  transition: transform 0.3s cubic-bezier(0.25,0.1,0.25,1), box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}

.xp-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-float);
  border-color: rgba(201,169,106,0.35);
}

.xp-card .xp-number {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 28px;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 16px;
  display: block;
}

.xp-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-on-dark);
  margin-bottom: 10px;
  line-height: 1.4;
}

.xp-card p {
  font-size: 14px;
  color: var(--text-on-dark-sub);
  line-height: 1.7;
}

/* ============ Scenario Section ============ */
.scenario-list {
  max-width: 780px;
  margin: 0 auto;
  list-style: none;
}

.scenario-list li {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-light);
  align-items: flex-start;
}

.scenario-list li:last-child {
  border-bottom: none;
}

.scenario-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: rgba(14,59,50,0.08);
  border-radius: 10px;
  flex-shrink: 0;
  margin-top: 4px;
}

.scenario-icon svg {
  width: 22px;
  height: 22px;
  fill: var(--primary);
  color: var(--primary);
}

.scenario-text h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 6px;
  line-height: 1.4;
}

.scenario-text p {
  font-size: 14px;
  color: var(--text-mid);
  line-height: 1.7;
}

/* ============ Steps ============ */
.steps-wrapper {
  max-width: 780px;
  margin: 0 auto;
}

.step-item {
  display: flex;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border-dark);
  align-items: flex-start;
}

.step-item:last-child {
  border-bottom: none;
}

.step-number {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 44px;
  line-height: 1;
  color: rgba(201,169,106,0.6);
  flex-shrink: 0;
  min-width: 56px;
  text-align: center;
  font-weight: 700;
}

.step-content h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--text-on-dark);
  margin-bottom: 10px;
  line-height: 1.4;
}

.step-content p {
  font-size: 15px;
  color: var(--text-on-dark-sub);
  line-height: 1.7;
}

/* ============ FAQ ============ */
.faq-wrapper {
  max-width: 860px;
  margin: 48px auto 0;
}

.faq-item {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: 12px;
  margin-bottom: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.faq-item:hover {
  border-color: rgba(14,59,50,0.2);
  box-shadow: var(--shadow-xs);
}

.faq-item.active {
  border-color: rgba(14,59,50,0.4);
  box-shadow: var(--shadow-xs);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 17px;
  font-weight: 700;
  color: var(--text-dark);
  background: transparent;
  border: none;
  width: 100%;
  text-align: left;
  transition: color 0.3s ease;
}

.faq-question:hover {
  color: var(--primary);
}

.faq-icon {
  position: relative;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  background: var(--accent);
  transition: transform 0.3s ease;
}

.faq-icon::before {
  top: 8px;
  left: 0;
  width: 18px;
  height: 2px;
}

.faq-icon::after {
  top: 0;
  left: 8px;
  width: 2px;
  height: 18px;
}

.faq-item.active .faq-icon::after {
  transform: rotate(90deg);
  opacity: 0;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 24px;
}

.faq-item.active .faq-answer {
  max-height: 260px;
  padding-bottom: 20px;
}

.faq-answer p {
  font-size: 14px;
  color: var(--text-mid);
  line-height: 1.75;
  border-top: 1px solid var(--border-light);
  padding-top: 16px;
}

/* ============ CTA ============ */
.cta-section {
  background: var(--primary);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.cta-section::before,
.cta-section::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 28%;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--accent), transparent);
}

.cta-section::before {
  left: 4%;
}

.cta-section::after {
  right: 4%;
}

.cta-section h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-on-dark);
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}

.cta-section p {
  font-size: 15px;
  color: var(--text-on-dark-sub);
  margin-bottom: 32px;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 40px;
  background: var(--accent);
  color: var(--text-dark);
  font-size: 15px;
  font-weight: 700;
  border-radius: var(--radius-btn);
  transition: background 0.25s ease, color 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
  box-shadow: 0 4px 16px rgba(201,169,106,0.3);
}

.cta-btn:hover {
  background: #ffffff;
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

.cta-btn:active {
  transform: scale(0.97) translateY(-2px);
}

/* ============ Related Categories ============ */
.related-section {
  padding: 56px 0;
  background: var(--bg-light);
  border-top: 1px solid var(--border-light);
}

.related-inner {
  text-align: center;
}

.related-inner h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 20px;
}

.related-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.related-link {
  display: inline-flex;
  align-items: center;
  padding: 9px 24px;
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-btn);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-mid);
  transition: all 0.25s ease;
  box-shadow: var(--shadow-xs);
}

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

.related-link.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
}

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  .header-inner {
    padding: 0 16px;
  }

  .nav-left,
  .nav-right {
    gap: 16px;
  }

  .nav-link {
    font-size: 13px;
  }

  .brand-logo {
    font-size: 17px;
  }

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

  .page-hero h1 {
    font-size: 36px;
  }
}

@media (max-width: 768px) {
  .header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
  }

  .header-inner .nav-left,
  .header-inner .nav-right {
    display: none;
  }

  .brand-logo {
    font-size: 18px;
  }

  .burger {
    display: flex;
  }

  .burger.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .burger.open span:nth-child(2) {
    opacity: 0;
  }

  .burger.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .mobile-menu {
    position: fixed;
    top: 72px;
    left: 0;
    width: 100%;
    background: var(--primary);
    padding: 24px 16px 32px;
    flex-direction: column;
    gap: 0;
    z-index: 999;
    display: flex;
    border-bottom: 1px solid rgba(201,169,106,0.15);
  }

  .mobile-menu a {
    color: var(--text-on-dark);
    font-size: 15px;
    padding: 14px 0;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    text-align: center;
  }

  .mobile-menu a:last-child {
    border-bottom: none;
  }

  .mobile-menu a.active {
    color: var(--accent);
  }

  .mobile-menu .mobile-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 44px;
    margin-top: 16px;
    background: var(--accent);
    color: var(--text-dark);
    font-weight: 700;
    border-radius: var(--radius-btn);
    border: none;
    padding: 0 32px;
    align-self: center;
  }

  .section {
    padding: var(--space-section-mobile) 0;
  }

  .page-hero {
    padding: 120px 0 48px;
  }

  .page-hero h1 {
    font-size: 30px;
  }

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

  .footer-brand .brand-logo {
    font-size: 18px;
  }

  .article-single h2 {
    font-size: 22px;
  }

  .article-single .article-lead {
    font-size: 15px;
    padding: 18px 20px;
  }

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

  .step-item {
    flex-direction: column;
    gap: 12px;
  }

  .step-number {
    text-align: left;
    font-size: 36px;
  }

  .section-head h2 {
    font-size: 26px;
  }

  .cta-section::before,
  .cta-section::after {
    display: none;
  }

  .related-links {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .related-link {
    padding: 8px 16px;
    font-size: 13px;
  }
}

@media (max-width: 520px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

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

  .page-hero h1 {
    font-size: 26px;
  }

  .page-hero p.lead {
    font-size: 14px;
  }

  .faq-question {
    font-size: 15px;
    padding: 16px 18px;
  }

  .faq-answer p {
    font-size: 13px;
  }

  .cta-section h2 {
    font-size: 24px;
  }

  .cta-btn {
    height: 44px;
    padding: 0 28px;
    font-size: 14px;
  }

  .step-content h3 {
    font-size: 17px;
  }

  .xp-card {
    padding: 20px;
  }

  .scenario-list li {
    flex-direction: column;
    gap: 12px;
  }

  .scenario-icon {
    margin-top: 0;
  }

  .footer-title {
    font-size: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
}

/* roulang page: category4 */
:root {
  --primary: #0E3B32;
  --accent: #C9A96A;
  --bg-light: #F7F5F0;
  --bg-dark: #0B1412;
  --bg-card-dark: #15201D;
  --text-main: #1A211E;
  --text-secondary: #5C6A65;
  --text-muted: #8B9894;
  --text-on-dark: #F5F3EE;
  --text-muted-dark: #A8B5B0;
  --border-light: rgba(26,33,30,0.08);
  --border-dark: rgba(255,255,255,0.12);
  --radius-lg: 14px;
  --radius-md: 8px;
  --radius-pill: 999px;
  --shadow-sm: 0 2px 8px rgba(11,20,18,0.06);
  --shadow-hover: 0 14px 36px rgba(11,20,18,0.14);
  --shadow-float: 0 10px 44px rgba(11,20,18,0.28);
  --font-head: "PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  --font-serif: "Noto Serif SC",Georgia,"Times New Roman",serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-margin-top:88px}
body{font-family:var(--font-head);font-size:16px;line-height:1.75;color:var(--text-main);background:var(--bg-light);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input,select{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-title{font-size:34px;font-weight:700;letter-spacing:-0.5px;line-height:1.3;color:var(--text-main);margin-bottom:14px}
.section-desc{font-size:16px;color:var(--text-secondary);line-height:1.75;max-width:640px;margin-bottom:48px}
.section-head{text-align:center}
.section-head .section-desc{margin-left:auto;margin-right:auto}
.bg-dark{background:var(--bg-dark);color:var(--text-on-dark)}
.bg-dark .section-title{color:#fff}
.bg-dark .section-desc{color:var(--text-muted-dark)}
h1,h2,h3,h4{font-family:var(--font-head)}

/* Navigation */
.site-header{position:fixed;top:0;left:0;right:0;height:72px;background:var(--primary);z-index:100;border-bottom:1px solid rgba(201,169,106,0.15)}
.header-inner{max-width:1280px;margin:0 auto;padding:0 24px;height:72px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.nav-left,.nav-right{display:flex;align-items:center;gap:4px}
.nav-link{color:rgba(255,255,255,0.72);font-size:14px;letter-spacing:0.03em;padding:8px 14px;border-radius:var(--radius-pill);transition:color .25s,background .25s;position:relative}
.nav-link::after{content:'';position:absolute;left:14px;right:14px;bottom:3px;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .25s ease-out}
.nav-link:hover{color:#fff;background:rgba(255,255,255,0.06)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--accent);font-weight:600}
.brand-logo{display:flex;align-items:center;gap:8px;color:#fff;font-size:20px;font-weight:700;letter-spacing:0.02em;white-space:nowrap}
.brand-logo svg{width:24px;height:24px;fill:var(--accent);flex-shrink:0}
.nav-cta{background:var(--accent);color:var(--primary);font-size:14px;font-weight:700;letter-spacing:0.02em;padding:9px 24px;border-radius:var(--radius-pill);transition:all .25s ease;white-space:nowrap}
.nav-cta:hover{background:var(--primary);color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent);transform:translateY(-1px)}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;border:none;background:transparent}
.burger span{width:22px;height:2px;background:#fff;border-radius:2px;transition:all .3s}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media(max-width:1024px){
  .nav-left,.nav-right{display:none;position:absolute;top:72px;left:0;right:0;background:var(--primary);flex-direction:column;align-items:stretch;padding:16px 24px;gap:4px}
  .nav-left.mobile-open,.nav-right.mobile-open{display:flex}
  .nav-left{border-bottom:1px solid rgba(201,169,106,0.15)}
  .nav-right{top:auto;padding-bottom:24px}
  .nav-link{padding:14px 16px;font-size:15px;border-radius:10px}
  .nav-link::after{display:none}
  .nav-cta{margin-top:12px;text-align:center;padding:14px 24px}
  .burger{display:flex}
  .brand-logo{font-size:17px}
}

/* Page Banner */
.page-banner{position:relative;padding:150px 0 80px;background:var(--bg-dark) url('/assets/images/backpic/back-2.webp') no-repeat center/cover}
.page-banner::before{content:'';position:absolute;inset:0;background:linear-gradient(115deg,rgba(11,20,18,0.95) 25%,rgba(11,20,18,0.7) 60%,rgba(11,20,18,0.4))}
.banner-content{position:relative;z-index:2}
.banner-tag{display:inline-flex;align-items:center;gap:8px;background:rgba(201,169,106,0.12);border:1px solid rgba(201,169,106,0.4);color:var(--accent);font-size:12px;font-weight:600;letter-spacing:0.06em;padding:6px 16px;border-radius:999px;margin-bottom:24px}
.banner-title{font-size:48px;font-weight:700;color:#fff;letter-spacing:-0.5px;line-height:1.2;margin-bottom:18px}
.banner-desc{font-size:17px;color:rgba(255,255,255,0.78);line-height:1.8;max-width:640px;margin-bottom:32px}
.banner-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;font-weight:700;font-size:15px;padding:14px 32px;transition:all .25s ease;cursor:pointer;border:1px solid transparent}
.btn:active{transform:scale(0.97)}
.btn-gold{background:var(--accent);color:var(--primary)}
.btn-gold:hover{background:var(--primary);color:var(--accent)}
.btn-outline{background:transparent;border:1px solid rgba(255,255,255,0.4);color:#fff}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}
.banner-decor{position:absolute;right:6%;top:50%;transform:translateY(-50%);width:280px;height:280px;border:2px solid rgba(201,169,106,0.2);border-radius:50%;z-index:1;pointer-events:none}
.banner-decor::after{content:'';position:absolute;inset:28px;border:1px solid rgba(201,169,106,0.15);border-radius:50%}
@media(max-width:768px){
  .page-banner{padding:120px 0 64px}
  .banner-title{font-size:34px}
  .banner-decor{display:none}
}

/* Intro Section */
.intro-section{background:var(--bg-light)}
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}
.intro-media{position:relative}
.intro-media img{border-radius:18px;box-shadow:var(--shadow-hover);border:1px solid var(--border-light)}
.intro-media::after{content:'';position:absolute;inset:18px -18px -18px 18px;border-radius:18px;background:var(--primary);z-index:-1;opacity:0.08}
.intro-title{font-size:30px;font-weight:700;letter-spacing:-0.3px;margin-bottom:16px;line-height:1.35}
.intro-text{font-size:15px;color:var(--text-secondary);line-height:1.85;margin-bottom:20px}
@media(max-width:900px){
  .intro-grid{grid-template-columns:1fr;gap:40px}
  .intro-media{max-width:560px}
}

/* FAQ Cards */
.faq-cards-section{background:#fff}
.faq-grid .cell{display:flex}
.faq-card{flex:1;background:var(--bg-light);border:1px solid rgba(201,169,106,0.2);border-radius:18px;padding:34px 28px;box-shadow:var(--shadow-sm);transition:transform .35s cubic-bezier(0.25,0.1,0.25,1),box-shadow .35s,border-color .35s;display:flex;flex-direction:column}
.faq-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:rgba(201,169,106,0.55)}
.faq-icon{width:52px;height:52px;border-radius:14px;background:rgba(14,59,50,0.1);display:flex;align-items:center;justify-content:center;margin-bottom:20px;transition:all .35s}
.faq-icon svg{width:26px;height:26px;fill:var(--primary);transition:fill .35s}
.faq-card:hover .faq-icon{background:var(--primary)}
.faq-card:hover .faq-icon svg{fill:var(--accent)}
.faq-card h3{font-size:19px;font-weight:700;color:var(--text-main);margin-bottom:10px;line-height:1.4}
.faq-card p{font-size:14px;color:var(--text-secondary);line-height:1.7;margin-bottom:0}
.faq-line{display:block;width:32px;height:2px;background:var(--accent);margin-top:18px;opacity:0.5;transition:width .35s}
.faq-card:hover .faq-line{width:56px;opacity:1}
@media(max-width:1024px){
  .faq-grid .cell{width:50%}
}
@media(max-width:640px){
  .faq-grid .cell{width:100%}
  .faq-card{padding:26px 22px}
}

/* Process */
.process-section{background:var(--bg-dark);color:var(--text-on-dark)}
.process-section .section-title{color:#fff}
.process-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:16px}
.process-card{background:var(--bg-card-dark);border:1px solid var(--border-dark);border-radius:18px;padding:36px 28px;position:relative;transition:transform .3s ease,border-color .3s ease}
.process-card:hover{transform:translateY(-4px);border-color:rgba(201,169,106,0.45)}
.process-num{font-family:var(--font-serif);font-size:52px;font-weight:700;color:transparent;background:linear-gradient(135deg,rgba(201,169,106,0.9),rgba(201,169,106,0.4));-webkit-background-clip:text;background-clip:text;line-height:1;margin-bottom:16px}
.process-card h3{font-size:20px;font-weight:700;color:#fff;margin-bottom:10px}
.process-card p{font-size:14px;color:var(--text-muted-dark);line-height:1.75;margin-bottom:0}
@media(max-width:900px){
  .process-grid{grid-template-columns:1fr;gap:20px}
  .process-card{display:flex;align-items:center;gap:24px;padding:24px}
  .process-num{margin-bottom:0;font-size:40px}
  .process-card div{flex:1}
}

/* Related */
.related-section{background:var(--bg-light)}
.related-title{text-align:center;font-size:26px;font-weight:700;margin-bottom:28px}
.related-bar{display:flex;justify-content:center;flex-wrap:wrap;gap:14px}
.related-chip{display:inline-flex;align-items:center;padding:12px 26px;border-radius:999px;border:1px solid rgba(14,59,50,0.2);background:#fff;color:var(--text-main);font-size:14px;font-weight:600;letter-spacing:0.02em;transition:all .3s ease}
.related-chip:hover{border-color:var(--accent);background:var(--primary);color:#fff;box-shadow:0 6px 20px rgba(14,59,50,0.2)}
.related-chip.active{background:var(--primary);border-color:var(--primary);color:var(--accent)}
@media(max-width:640px){
  .related-chip{padding:10px 20px;font-size:13px}
}

/* CTA */
.cta-section{position:relative;background:var(--primary);color:#fff;text-align:center;padding:90px 24px;overflow:hidden}
.cta-section::before,.cta-section::after{content:'';position:absolute;top:50%;width:30%;height:1px;background:linear-gradient(90deg,transparent,rgba(201,169,106,0.6))}
.cta-section::before{left:8%;transform:translateY(-50%)}
.cta-section::after{right:8%;transform:translateY(-50%) rotate(180deg)}
.cta-inner{max-width:640px;margin:0 auto;position:relative;z-index:2}
.cta-title{font-size:32px;font-weight:700;margin-bottom:12px}
.cta-sub{font-size:16px;color:rgba(255,255,255,0.7);margin-bottom:32px}
.cta-btn{display:inline-flex;align-items:center;justify-content:center;background:var(--accent);color:var(--primary);font-size:16px;font-weight:700;padding:15px 40px;border-radius:999px;transition:all .3s ease;box-shadow:0 4px 20px rgba(201,169,106,0.3)}
.cta-btn:hover{background:#fff;color:var(--primary);transform:translateY(-2px);box-shadow:0 8px 30px rgba(255,255,255,0.2)}
.cta-btn:active{transform:scale(0.97)}
@media(max-width:768px){
  .cta-section{padding:64px 16px}
  .cta-title{font-size:26px}
  .cta-section::before,.cta-section::after{width:18%}
}

/* Footer */
.site-footer{background:#091512;padding:64px 0 32px;border-top:1px solid rgba(201,169,106,0.15);color:var(--text-muted-dark)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:48px;margin-bottom:48px}
.footer-brand .brand-logo{color:#fff;font-size:20px}
.footer-desc{font-size:14px;color:var(--text-muted);line-height:1.8;margin:18px 0 20px;max-width:300px}
.social-row{display:flex;gap:10px}
.social-btn{width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,0.18);display:flex;align-items:center;justify-content:center;transition:all .3s ease}
.social-btn svg{width:18px;height:18px;fill:rgba(255,255,255,0.6);transition:fill .3s}
.social-btn:hover{border-color:var(--accent)}
.social-btn:hover svg{fill:var(--accent)}
.footer-title{font-size:15px;font-weight:700;color:#fff;letter-spacing:0.05em;margin-bottom:18px}
.footer-links li,.footer-contact li{margin-bottom:10px;display:flex;align-items:center;gap:10px}
.footer-links a,.footer-contact{font-size:14px;color:var(--text-muted);transition:color .25s}
.footer-links a:hover{color:var(--accent)}
.footer-contact svg{width:16px;height:16px;fill:var(--accent);flex-shrink:0}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.08);padding-top:24px;text-align:center}
.footer-bottom p{font-size:12px;color:var(--text-muted);letter-spacing:0.03em}
@media(max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .footer-grid>div:first-child{grid-column:1/-1}
}
@media(max-width:640px){
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding:48px 0 24px}
}

/* Float CTA */
.float-cta{position:fixed;z-index:30;opacity:0;visibility:hidden;transform:translateY(20px);transition:opacity .4s ease,transform .4s ease,width .3s ease,background .3s ease;bottom:24px;display:flex;align-items:center;gap:8px;color:#fff;font-size:14px;font-weight:600;box-shadow:0 8px 30px rgba(11,20,18,0.35)}
.float-cta.visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta-right{right:24px;width:64px;height:64px;border-radius:50%;background:var(--accent);justify-content:center;cursor:pointer;animation:pulse 2.8s infinite}
.float-cta-right svg{width:26px;height:26px;fill:var(--primary)}
.float-cta-right .cta-label{display:none;white-space:nowrap;color:var(--primary);font-weight:700}
.float-cta-left{left:24px;background:var(--success);padding:14px 24px;border-radius:999px;box-shadow:0 6px 24px rgba(46,125,91,0.35)}
.float-cta-left svg{width:18px;height:18px;fill:#fff}
.float-cta-left:hover{filter:brightness(1.1);transform:translateY(-2px)}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(201,169,106,0.5)}
  70%{box-shadow:0 0 0 18px rgba(201,169,106,0)}
  100%{box-shadow:0 0 0 0 rgba(201,169,106,0)}
}
@media(max-width:640px){
  .float-cta-right{width:56px;height:56px;right:16px;bottom:20px}
  .float-cta-left{padding:0;width:48px;height:48px;justify-content:center;left:16px;border-radius:50%}
  .float-cta-left span{display:none}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
}

/* Reveal */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease-out,transform .6s ease-out}
.reveal.visible{opacity:1;transform:translateY(0)}

/* roulang page: category3 */
:root {
    --primary: #0E3B32;
    --primary-dark: #0B1412;
    --accent: #C9A96A;
    --accent-light: #D8BC8A;
    --bg-light: #F7F5F0;
    --bg-white: #FFFFFF;
    --bg-card-dark: #15201D;
    --text-primary: #1A211E;
    --text-secondary: #5C6A65;
    --text-muted: #8B9894;
    --text-on-dark: #F5F3EE;
    --text-on-dark-secondary: #A8B5B0;
    --border-light: rgba(26,33,30,0.08);
    --border-dark: rgba(255,255,255,0.12);
    --success: #2E7D5B;
    --warning: #D97742;
    --radius: 14px;
    --radius-sm: 8px;
    --radius-pill: 999px;
    --shadow-sm: 0 2px 8px rgba(11,20,18,0.06);
    --shadow-md: 0 14px 36px rgba(11,20,18,0.14);
    --shadow-lg: 0 10px 44px rgba(11,20,18,0.28);
    --transition: 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
    --font-serif: Georgia, "Times New Roman", serif;
    --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

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

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

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.25s ease;
}

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

ul, ol {
    list-style: none;
}

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

/* ===== 顶部导航 ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: var(--primary);
    border-bottom: 1px solid rgba(201, 169, 106, 0.15);
    height: 72px;
}

.header-inner {
    max-width: 1360px;
    margin: 0 auto;
    padding: 0 32px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
}

.nav-left,
.nav-right {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
}

.nav-right {
    justify-content: flex-end;
}

.nav-link {
    color: var(--text-on-dark-secondary);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.03em;
    padding: 8px 14px;
    border-radius: 8px;
    position: relative;
    transition: color 0.25s;
    white-space: nowrap;
}

.nav-link::after {
    content: "";
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 2px;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.25s ease;
}

.nav-link:hover {
    color: var(--text-on-dark);
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: scaleX(1);
}

.nav-link.active {
    color: var(--accent);
}

.nav-cta {
    background: var(--accent);
    color: var(--primary);
    font-size: 14px;
    font-weight: 600;
    padding: 9px 24px;
    border-radius: var(--radius-pill);
    letter-spacing: 0.03em;
    transition: all 0.25s ease;
    white-space: nowrap;
}

.nav-cta:hover {
    background: var(--primary-dark);
    color: var(--accent);
    box-shadow: 0 4px 20px rgba(201, 169, 106, 0.25);
    transform: translateY(-1px);
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-on-dark);
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 0.02em;
    white-space: nowrap;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.brand-logo svg {
    width: 24px;
    height: 24px;
    fill: var(--accent);
    flex-shrink: 0;
}

.brand-logo:hover {
    color: var(--accent-light);
}

.burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
    z-index: 102;
}

.burger span {
    width: 24px;
    height: 2px;
    background: var(--text-on-dark);
    transition: all 0.3s;
    border-radius: 2px;
}

/* 移动端菜单 */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--primary);
    z-index: 99;
    padding: 100px 32px 40px;
    flex-direction: column;
    gap: 8px;
    overflow-y: auto;
}

.mobile-menu.open {
    display: flex;
}

.mobile-menu .nav-link {
    font-size: 18px;
    padding: 14px 16px;
    color: var(--text-on-dark);
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.mobile-menu .nav-link.active {
    color: var(--accent);
    border-left: 3px solid var(--accent);
}

.mobile-menu .nav-cta {
    margin-top: 24px;
    text-align: center;
    font-size: 16px;
    padding: 14px;
}

/* ===== 页面H1 ===== */
.page-hero {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, rgba(14, 59, 50, 0.85) 100%);
    padding: 140px 0 80px;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: "";
    position: absolute;
    top: -40%;
    right: -20%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    border: 1px solid rgba(201, 169, 106, 0.15);
    background: radial-gradient(circle, rgba(201, 169, 106, 0.08) 0%, transparent 70%);
}

.page-hero .container {
    position: relative;
    z-index: 2;
}

.page-hero .hero-inner {
    max-width: 780px;
}

.page-hero h1 {
    font-size: 42px;
    font-weight: 700;
    color: var(--text-on-dark);
    letter-spacing: -0.5px;
    line-height: 1.3;
    margin-bottom: 16px;
}

.page-hero p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-on-dark-secondary);
    max-width: 640px;
    margin-bottom: 28px;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 8px;
}

.hero-tags span {
    display: inline-block;
    padding: 6px 18px;
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: var(--radius-pill);
    font-size: 13px;
    color: var(--text-on-dark-secondary);
    letter-spacing: 0.04em;
    background: rgba(255,255,255,0.04);
}

/* ===== 列表式保障说明 ===== */
.list-section {
    padding: 96px 0;
    background: var(--bg-light);
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 56px;
}

.section-header h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
    line-height: 1.3;
    margin-bottom: 12px;
}

.section-header p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.breadcrumb {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 24px;
}

.breadcrumb a {
    color: var(--text-secondary);
}

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

.breadcrumb span {
    margin: 0 6px;
}

.security-list {
    max-width: 880px;
    margin: 0 auto;
    background: var(--bg-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.list-item {
    display: flex;
    gap: 24px;
    padding: 36px 40px;
    border-bottom: 1px solid var(--border-light);
    transition: background 0.3s ease;
}

.list-item:last-child {
    border-bottom: none;
}

.list-item:hover {
    background: rgba(14, 59, 50, 0.02);
}

.list-item-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(14, 59, 50, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    transition: all 0.3s ease;
}

.list-item:hover .list-item-icon {
    background: var(--primary);
    color: var(--accent);
}

.list-item-icon svg {
    width: 22px;
    height: 22px;
    fill: currentColor;
}

.list-item-content {
    flex: 1;
}

.list-item-content h3 {
    font-size: 19px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.4;
}

.list-item-content p {
    font-size: 14px;
    line-height: 1.75;
    color: var(--text-secondary);
}

/* ===== 服务标准 ===== */
.stats-section {
    background: var(--primary-dark);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.stats-section::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0.5;
}

.stats-section h2 {
    text-align: center;
    font-size: 30px;
    color: var(--text-on-dark);
    margin-bottom: 8px;
    font-weight: 700;
}

.stats-section .stats-sub {
    text-align: center;
    color: var(--text-on-dark-secondary);
    font-size: 15px;
    margin-bottom: 56px;
}

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

.stat-card {
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border-dark);
    border-radius: var(--radius);
    padding: 36px 24px;
    text-align: center;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    border-color: rgba(201, 169, 106, 0.4);
}

.stat-num {
    font-family: var(--font-serif);
    font-size: 52px;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 12px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-on-dark-secondary);
    letter-spacing: 0.04em;
}

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

.process-section .section-header h2 {
    font-size: 30px;
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 24px;
}

.process-step {
    text-align: center;
    padding: 40px 24px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    background: var(--bg-light);
    position: relative;
    transition: all 0.3s ease;
}

.process-step:hover {
    box-shadow: var(--shadow-sm);
    border-color: rgba(201, 169, 106, 0.3);
}

.step-num {
    font-family: var(--font-serif);
    font-size: 14px;
    color: var(--accent);
    letter-spacing: 0.08em;
    margin-bottom: 12px;
}

.step-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
}

.step-icon svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

.process-step h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.process-step p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.65;
}

.process-arrow {
    position: absolute;
    top: 50%;
    right: -22px;
    width: 24px;
    height: 24px;
    color: var(--accent);
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
}

.process-arrow svg {
    width: 14px;
    height: 14px;
    fill: currentColor;
}

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

.faq-list {
    max-width: 780px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    overflow: hidden;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.faq-item.active {
    border-color: rgba(201, 169, 106, 0.5);
    box-shadow: var(--shadow-sm);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 22px 28px;
    cursor: pointer;
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    transition: color 0.25s;
    user-select: none;
}

.faq-question:hover {
    color: var(--primary);
}

.faq-icon {
    width: 20px;
    height: 20px;
    position: relative;
    flex-shrink: 0;
    margin-left: 12px;
}

.faq-icon::before,
.faq-icon::after {
    content: "";
    position: absolute;
    background: var(--accent);
    border-radius: 2px;
    transition: transform 0.3s ease;
}

.faq-icon::before {
    width: 14px;
    height: 2px;
    top: 9px;
    left: 3px;
}

.faq-icon::after {
    width: 2px;
    height: 14px;
    top: 3px;
    left: 9px;
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
    padding: 0 28px;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 28px 22px;
}

.faq-answer p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.75;
    border-top: 1px solid var(--border-light);
    padding-top: 16px;
}

/* ===== 相关分类 ===== */
.rel-cats {
    padding: 64px 0;
    background: var(--bg-white);
    border-top: 1px solid var(--border-light);
}

.rel-cats h3 {
    text-align: center;
    font-size: 20px;
    color: var(--text-primary);
    margin-bottom: 28px;
    font-weight: 600;
}

.cat-pills {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
}

.cat-pill {
    display: inline-block;
    padding: 10px 26px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-pill);
    font-size: 14px;
    color: var(--text-secondary);
    background: var(--bg-light);
    transition: all 0.3s ease;
}

.cat-pill:hover {
    border-color: var(--accent);
    color: var(--primary);
    background: rgba(201, 169, 106, 0.08);
    transform: translateY(-2px);
}

.cat-pill.active {
    background: var(--primary);
    color: var(--accent);
    border-color: var(--primary);
}

/* ===== CTA区 ===== */
.cta-section {
    background: var(--primary);
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before,
.cta-section::after {
    content: "";
    position: absolute;
    top: 50%;
    width: 20%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent));
}

.cta-section::before {
    left: 8%;
}

.cta-section::after {
    right: 8%;
    transform: scaleX(-1);
}

.cta-section h2 {
    font-size: 30px;
    color: var(--text-on-dark);
    margin-bottom: 12px;
    font-weight: 700;
}

.cta-section p {
    font-size: 15px;
    color: var(--text-on-dark-secondary);
    margin-bottom: 32px;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

.cta-btn {
    display: inline-block;
    background: var(--accent);
    color: var(--primary);
    padding: 14px 44px;
    border-radius: var(--radius-pill);
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    letter-spacing: 0.02em;
}

.cta-btn:hover {
    background: var(--primary-dark);
    color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(201, 169, 106, 0.25);
}

/* ===== 页脚 ===== */
.site-footer {
    background: #091512;
    padding: 64px 0 32px;
    border-top: 1px solid rgba(201, 169, 106, 0.15);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand .brand-logo {
    position: static;
    transform: none;
    justify-content: flex-start;
    margin-bottom: 16px;
    color: var(--text-on-dark);
}

.footer-brand .brand-logo:hover {
    color: var(--accent);
}

.footer-desc {
    font-size: 14px;
    color: var(--text-on-dark-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
    max-width: 320px;
}

.social-row {
    display: flex;
    gap: 12px;
}

.social-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-on-dark-secondary);
    transition: all 0.3s ease;
}

.social-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.social-btn svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.footer-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-on-dark);
    margin-bottom: 18px;
    letter-spacing: 0.04em;
}

.footer-links li,
.footer-contact li {
    margin-bottom: 12px;
}

.footer-links a {
    font-size: 14px;
    color: var(--text-on-dark-secondary);
    transition: color 0.25s;
}

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

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-on-dark-secondary);
}

.footer-contact svg {
    width: 18px;
    height: 18px;
    fill: var(--accent);
    flex-shrink: 0;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.footer-bottom p {
    font-size: 12px;
    color: var(--text-muted);
}

/* ===== 浮动CTA ===== */
.floating-cta-right {
    position: fixed;
    right: 24px;
    bottom: 24px;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--accent);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 90;
    box-shadow: 0 6px 24px rgba(201, 169, 106, 0.4);
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    transform: scale(0.8);
}

.floating-cta-right.show {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
}

.floating-cta-right:hover {
    background: var(--primary);
    color: var(--accent);
    box-shadow: 0 8px 32px rgba(14, 59, 50, 0.4);
}

.floating-cta-right svg {
    width: 28px;
    height: 28px;
    fill: currentColor;
}

.floating-cta-right::after {
    content: "在线咨询";
    position: absolute;
    right: 72px;
    white-space: nowrap;
    background: var(--primary);
    color: var(--accent);
    font-size: 13px;
    padding: 6px 16px;
    border-radius: 999px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.floating-cta-right:hover::after {
    opacity: 1;
    visibility: visible;
}

.floating-cta-left {
    position: fixed;
    left: 24px;
    bottom: 24px;
    background: var(--success);
    color: #fff;
    padding: 12px 24px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    z-index: 90;
    box-shadow: 0 4px 16px rgba(46, 125, 91, 0.35);
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px);
}

.floating-cta-left.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.floating-cta-left:hover {
    background: #236447;
    color: #fff;
    transform: translateY(-2px);
}

.floating-cta-left svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

/* ===== 动画 ===== */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-up {
    animation: fadeUp 0.6s ease-out both;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .nav-link {
        padding: 8px 10px;
        font-size: 13px;
    }

    .footer-grid {
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .site-header {
        height: 64px;
    }

    .header-inner {
        height: 64px;
        padding: 0 16px;
    }

    .nav-left,
    .nav-right {
        display: none;
    }

    .brand-logo {
        position: static;
        transform: none;
        font-size: 18px;
    }

    .burger {
        display: flex;
    }

    .page-hero {
        padding: 110px 0 56px;
    }

    .page-hero h1 {
        font-size: 30px;
    }

    .page-hero p {
        font-size: 15px;
    }

    .section-header h2 {
        font-size: 24px;
    }

    .list-section,
    .process-section,
    .faq-section {
        padding: 56px 0;
    }

    .list-item {
        padding: 24px;
        gap: 16px;
        flex-direction: column;
    }

    .list-item-icon {
        width: 40px;
        height: 40px;
        border-radius: 10px;
    }

    .list-item-icon svg {
        width: 18px;
        height: 18px;
    }

    .list-item-content h3 {
        font-size: 17px;
    }

    .list-item-content p {
        font-size: 14px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .stat-num {
        font-size: 40px;
    }

    .process-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .process-arrow {
        display: none;
    }

    .process-step {
        padding: 28px 20px;
    }

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

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .floating-cta-right {
        width: 52px;
        height: 52px;
        right: 16px;
        bottom: 16px;
    }

    .floating-cta-right svg {
        width: 22px;
        height: 22px;
    }

    .floating-cta-right::after {
        display: none;
    }

    .floating-cta-left {
        left: 16px;
        bottom: 16px;
        width: 48px;
        height: 48px;
        padding: 0;
        border-radius: 50%;
        justify-content: center;
    }

    .floating-cta-left span {
        display: none;
    }

    .floating-cta-left svg {
        width: 20px;
        height: 20px;
    }

    .rel-cats {
        padding: 48px 0;
    }

    .cat-pill {
        padding: 8px 18px;
        font-size: 13px;
    }

    .cta-section {
        padding: 56px 0;
    }

    .cta-section h2 {
        font-size: 24px;
    }
}

@media (max-width: 520px) {
    .container {
        padding: 0 16px;
    }

    .page-hero h1 {
        font-size: 26px;
    }

    .hero-tags span {
        font-size: 12px;
        padding: 4px 12px;
    }

    .list-item {
        padding: 20px 16px;
    }

    .list-item-content h3 {
        font-size: 16px;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .stat-card {
        padding: 20px 12px;
    }

    .stat-num {
        font-size: 32px;
    }

    .faq-question {
        padding: 18px 16px;
        font-size: 15px;
    }

    .faq-item.active .faq-answer {
        padding: 0 16px 16px;
    }
}