/* roulang page: index */
:root {
  --color-primary: #2F4A3C;
  --color-accent: #C4A962;
  --color-bg: #F8F5F0;
  --color-bg-deep: #1F332A;
  --color-callout: #B5553D;
  --color-text: #2B2B2B;
  --color-text-light: #6B6B6B;
  --color-white: #FFFFFF;
  --color-border: rgba(47,74,60,0.08);
  --color-success: #3D7B5A;
  --color-warning: #B08D3F;
  --color-error: #A94432;
  --radius-card: 16px;
  --radius-btn: 8px;
  --radius-input: 8px;
  --radius-tag: 999px;
  --shadow-card: 0 2px 10px rgba(47,74,60,0.06);
  --shadow-hover: 0 12px 28px rgba(47,74,60,0.12);
  --font-serif: 'Noto Serif SC','Songti SC','STSong',serif;
  --font-sans: 'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --max-width: 1200px;
  --header-h: 64px;
  --transition: all .3s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:var(--transition)}
button{font-family:inherit;cursor:pointer;border:none;background:none;font-size:inherit}
input,textarea{font-family:inherit;font-size:16px;outline:none}
ul,ol{list-style:none}
.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}
.section{padding:90px 0}
.section-header{text-align:center;max-width:720px;margin:0 auto 56px}
.section-eyebrow{display:inline-block;font-size:14px;color:var(--color-accent);letter-spacing:.05em;font-weight:600;margin-bottom:12px;text-transform:uppercase}
.section-header h2{font-family:var(--font-serif);font-size:32px;line-height:1.3;color:var(--color-primary);margin-bottom:14px}
.section-header p{font-size:16px;color:var(--color-text-light);line-height:1.7}

/* Header */
.site-header{position:fixed;top:0;left:0;right:0;height:var(--header-h);z-index:1000;background:rgba(248,245,240,.55);backdrop-filter:blur(14px) saturate(1.2);-webkit-backdrop-filter:blur(14px) saturate(1.2);border-bottom:1px solid var(--color-border);transition:var(--transition)}
.site-header.scrolled{background:rgba(248,245,240,.95);box-shadow:0 4px 20px rgba(47,74,60,.08)}
.header-inner{max-width:var(--max-width);margin:0 auto;padding:0 24px;height:var(--header-h);display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:flex;align-items:center;font-family:var(--font-serif);font-size:22px;font-weight:700;color:var(--color-primary);letter-spacing:.02em}
.logo .logo-sub{font-size:11px;color:var(--color-text-light);margin-left:8px;letter-spacing:.1em;font-family:var(--font-sans);font-weight:400}
.main-nav{display:flex;align-items:center;gap:4px}
.main-nav>li{position:relative}
.nav-link{display:inline-flex;align-items:center;height:var(--header-h);padding:0 14px;font-size:15px;font-weight:500;color:var(--color-text);border-bottom:2px solid transparent;transition:var(--transition)}
.nav-link:hover{color:var(--color-primary)}
.nav-link.active{color:var(--color-primary);border-bottom-color:var(--color-accent)}
.nav-link .caret{margin-left:6px;font-size:10px;transition:transform .3s}
.nav-item:hover .caret{transform:rotate(180deg)}
.dropdown-panel{position:absolute;top:calc(100% - 2px);left:50%;transform:translateX(-50%) translateY(12px);min-width:200px;background:rgba(248,245,240,.95);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--color-border);border-radius:12px 12px 16px 16px;box-shadow:0 20px 40px rgba(47,74,60,.12);padding:8px;opacity:0;visibility:hidden;transition:all .3s ease;z-index:100}
.nav-item:hover .dropdown-panel{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.dropdown-panel a{display:flex;align-items:center;padding:12px 16px;border-radius:10px;font-size:14px;color:var(--color-text);transition:var(--transition)}
.dropdown-panel a:hover{background:rgba(196,169,98,.12);color:var(--color-primary)}
.dropdown-panel a .d-icon{margin-right:10px;width:32px;height:32px;border-radius:8px;background:rgba(47,74,60,.06);display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--color-accent)}
.header-actions{display:flex;align-items:center;gap:8px}
.btn-header{padding:9px 20px;border-radius:var(--radius-btn);background:var(--color-primary);color:#fff;font-size:14px;font-weight:600;transition:var(--transition);white-space:nowrap}
.btn-header:hover{background:#243a2e;transform:translateY(-2px);box-shadow:0 6px 16px rgba(47,74,60,.2)}
.hamburger{display:none;width:42px;height:42px;border-radius:10px;align-items:center;justify-content:center;background:rgba(47,74,60,.06);flex-direction:column;gap:5px}
.hamburger span{display:block;width:18px;height:2px;background:var(--color-primary);border-radius:2px;transition:var(--transition)}
.hamburger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{display:none;position:fixed;top:var(--header-h);right:0;background:rgba(248,245,240,.95);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--color-border);box-shadow:0 20px 40px rgba(47,74,60,.1);z-index:999}
.mobile-menu.open{display:block}
.mobile-menu-inner{padding:16px;display:flex;flex-direction:column;gap:4px;max-height:calc(100vh - var(--header-h));overflow-y:auto}
.mobile-menu a.m-nav-link{padding:14px 20px;border-radius:10px;font-size:16px;font-weight:500;color:var(--color-text);transition:var(--transition)}
.mobile-menu a.m-nav-link:hover{background:rgba(196,169,98,.1);color:var(--color-primary)}
.mobile-menu a.m-nav-link.active{background:rgba(47,74,60,.06);color:var(--color-primary)}
.mobile-menu .m-sub{padding-left:20px;border-left:1px solid rgba(47,74,60,.08);margin-left:20px;display:flex;flex-direction:column;gap:2px}
.mobile-menu .m-sub a{font-size:14px;color:var(--color-text-light)}

/* Hero */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;overflow:hidden;background:url('/assets/images/backpic/back-1.png') center center/cover no-repeat}
.hero::before{content:'';position:absolute;inset:0;background:linear-gradient(120deg,rgba(248,245,240,.92) 20%,rgba(248,245,240,.68) 50%,rgba(31,51,42,.35) 100%)}
.hero::after{content:'';position:absolute;bottom:0;left:0;right:0;height:120px;background:linear-gradient(to top,var(--color-bg),transparent)}
.hero-content{position:relative;z-index:2;max-width:1100px;margin:0 auto;padding:120px 24px 60px;text-align:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(196,169,98,.15);border:1px solid rgba(196,169,98,.35);color:var(--color-primary);border-radius:999px;padding:8px 20px;font-size:13px;font-weight:500;margin-bottom:28px}
.hero-badge i{font-size:14px;color:var(--color-accent)}
.hero h1{font-family:var(--font-serif);font-size:44px;line-height:1.3;color:var(--color-primary);font-weight:700;letter-spacing:.02em;margin-bottom:20px}
.hero-sub{font-size:17px;color:var(--color-text);max-width:580px;margin:0 auto 36px;line-height:1.8}
.hero-ctas{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:56px}
.btn-primary{display:inline-flex;align-items:center;justify-content:center;padding:14px 36px;border-radius:var(--radius-btn);background:var(--color-primary);color:#fff;font-size:15px;font-weight:600;box-shadow:0 4px 16px rgba(47,74,60,.2);transition:var(--transition)}
.btn-primary:hover{background:#243a2e;transform:translateY(-2px);box-shadow:0 8px 24px rgba(47,74,60,.28)}
.btn-secondary{display:inline-flex;align-items:center;justify-content:center;padding:14px 36px;border-radius:var(--radius-btn);border:1.5px solid var(--color-primary);background:rgba(255,255,255,.4);color:var(--color-primary);font-size:15px;font-weight:600;transition:var(--transition)}
.btn-secondary:hover{background:rgba(47,74,60,.08);transform:translateY(-2px)}
.hero-trust{display:flex;justify-content:center;gap:36px;flex-wrap:wrap}
.trust-item{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:500;color:var(--color-secondary);background:rgba(255,255,255,.6);padding:10px 18px;border-radius:999px;border:1px solid var(--color-border);backdrop-filter:blur(6px)}
.trust-item i{color:var(--color-accent);font-size:15px}

/* Feature Section */
.feature-section{background:var(--color-bg);position:relative}
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:24px}
.feature-card{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-card);padding:36px 32px;box-shadow:var(--shadow-card);transition:var(--transition);position:relative;overflow:hidden}
.feature-card:hover{box-shadow:var(--shadow-hover);border-color:rgba(196,169,98,.4);transform:translateY(-4px)}
.feature-icon{width:48px;height:48px;border-radius:12px;background:var(--color-primary);display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--color-accent);margin-bottom:22px}
.feature-card h3{font-family:var(--font-serif);font-size:20px;font-weight:700;color:var(--color-primary);margin-bottom:10px}
.feature-card p{font-size:14px;color:var(--color-text-light);line-height:1.65}
.feature-banner{background:linear-gradient(110deg,rgba(47,74,60,.04),rgba(196,169,98,.08));border:1px solid rgba(196,169,98,.25);border-radius:var(--radius-card);padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.feature-banner h3{font-family:var(--font-serif);font-size:22px;color:var(--color-primary);margin-bottom:6px}
.feature-banner p{font-size:15px;color:var(--color-text-light)}
.feature-banner .btn-primary{flex-shrink:0}

/* Process */
.process-section{background:var(--color-bg-deep);color:#fff}
.process-section .section-header h2{color:#fff}
.process-section .section-header p{color:rgba(255,255,255,.65)}
.process-steps{display:grid;grid-template-columns:repeat(5,1fr);gap:24px;position:relative}
.process-step{position:relative;text-align:center;padding:32px 16px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius-card);transition:var(--transition)}
.process-step:hover{background:rgba(255,255,255,.08);transform:translateY(-4px)}
.step-num{font-family:var(--font-serif);font-size:40px;color:var(--color-accent);font-weight:700;line-height:1;margin-bottom:16px}
.process-step .step-ico{width:48px;height:48px;border-radius:50%;background:rgba(196,169,98,.15);display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--color-accent);margin:0 auto 18px}
.process-step h3{font-size:17px;font-family:var(--font-serif);margin-bottom:8px;color:#fff}
.process-step p{font-size:13px;color:rgba(255,255,255,.55);line-height:1.6}

/* Evidence */
.evidence-section{background:#fff}
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;margin-bottom:64px}
.stat-item{text-align:center;padding:32px 16px;border-right:1px solid var(--color-border)}
.stat-item:last-child{border-right:none}
.stat-num{font-family:var(--font-serif);font-size:44px;color:var(--color-accent);font-weight:700;line-height:1.2}
.stat-label{font-size:14px;color:var(--color-text-light);margin-top:8px;letter-spacing:.02em}
.case-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{border:1px solid var(--color-border);border-radius:var(--radius-card);overflow:hidden;background:#fff;box-shadow:var(--shadow-card);transition:var(--transition)}
.case-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.case-cover{height:220px;overflow:hidden;background:var(--color-bg-deep)}
.case-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.case-card:hover .case-cover img{transform:scale(1.02)}
.case-body{padding:24px}
.case-body h3{font-size:17px;font-family:var(--font-serif);color:var(--color-primary);margin-bottom:8px}
.case-body p{font-size:14px;color:var(--color-text-light);line-height:1.6}
.case-body .case-link{display:inline-flex;align-items:center;margin-top:14px;font-size:14px;color:var(--color-primary);font-weight:500}
.case-body .case-link:hover{color:var(--color-accent)}

/* Pricing */
.pricing-section{background:var(--color-bg)}
.pricing-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:24px;align-items:stretch}
.pricing-card{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-card);padding:36px 32px;box-shadow:var(--shadow-card);transition:var(--transition);display:flex;flex-direction:column}
.pricing-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.pricing-card.featured{background:var(--color-bg);border:2px solid var(--color-primary);box-shadow:0 8px 30px rgba(47,74,60,.16);position:relative}
.pricing-card.featured .badge-reco{position:absolute;top:-12px;right:24px;background:var(--color-primary);color:#fff;font-size:13px;font-weight:600;padding:5px 14px;border-radius:999px}
.pricing-title{font-family:var(--font-serif);font-size:20px;font-weight:700;color:var(--color-primary);margin-bottom:18px}
.pricing-desc{font-size:14px;color:var(--color-text-light);line-height:1.65;margin-bottom:24px}
.pricing-features{flex:1;display:flex;flex-direction:column;gap:12px;margin-bottom:28px}
.pricing-features li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--color-text)}
.pricing-features li i{color:var(--color-accent);font-size:14px;margin-top:3px}
.pricing-price{font-family:var(--font-serif);font-size:34px;color:var(--color-primary);font-weight:700;margin-bottom:20px}
.pricing-price span{font-size:14px;color:var(--color-text-light);font-weight:400;font-family:var(--font-sans)}
.pricing-card .btn-primary{width:100%}

/* News */
.news-section{background:#fff}
.news-layout{display:grid;grid-template-columns:1.2fr 1fr;gap:32px}
.news-featured-card{display:block;background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-card);transition:var(--transition);height:100%}
.news-featured-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.news-f-img{border-radius:12px;overflow:hidden;margin-bottom:18px;height:240px}
.news-f-img img{width:100%;height:100%;object-fit:cover}
.news-f-content h3{font-family:var(--font-serif);font-size:20px;color:var(--color-primary);margin-bottom:10px;line-height:1.4}
.news-f-content p{font-size:14px;color:var(--color-text-light);margin-bottom:14px}
.news-f-meta{display:flex;align-items:center;gap:16px}
.news-f-meta time{font-size:13px;color:var(--color-text-light)}
.news-list{display:flex;flex-direction:column;gap:12px}
.news-list-item{background:#fff;border:1px solid var(--color-border);border-radius:12px;padding:20px;transition:var(--transition)}
.news-list-item:hover{background:rgba(47,74,60,.04);border-color:rgba(47,74,60,.15)}
.news-list-meta{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
.news-list-meta time{font-size:12px;color:var(--color-text-light)}
.news-list-item h4{font-size:15px;font-weight:600;color:var(--color-text);margin-bottom:4px;line-height:1.45}
.news-list-item p{font-size:13px;color:var(--color-text-light);line-height:1.5}
.category-tag{display:inline-block;padding:3px 12px;background:rgba(196,169,98,.12);color:var(--color-primary);font-size:12px;border-radius:999px;font-weight:500}
.empty-tip{padding:60px;text-align:center;color:var(--color-text-light);background:rgba(47,74,60,.03);border-radius:var(--radius-card);border:1px dashed rgba(47,74,60,.2)}

/* FAQ */
.faq-section{background:var(--color-bg)}
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-card);margin-bottom:14px;overflow:hidden;transition:var(--transition)}
.faq-item:hover{border-color:rgba(196,169,98,.35)}
.faq-q{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;font-size:16px;font-weight:500;color:var(--color-primary);cursor:pointer;transition:var(--transition)}
.faq-q:hover{background:rgba(196,169,98,.06)}
.faq-q .faq-arrow{transition:transform .3s;color:var(--color-accent);font-size:16px}
.faq-item.active .faq-arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-a-inner{padding:0 24px 18px;font-size:15px;color:var(--color-text-light);line-height:1.75}

/* Contact */
.contact-section{position:relative;background:url('/assets/images/backpic/back-2.webp') center center/cover no-repeat}
.contact-section::before{content:'';position:absolute;inset:0;background:rgba(248,245,240,.9)}
.contact-wrap{position:relative;z-index:2;max-width:1000px;margin:0 auto}
.contact-card{background:#fff;border-radius:var(--radius-card);box-shadow:var(--shadow-hover);padding:48px;border:1px solid var(--color-border)}
.contact-card h2{font-family:var(--font-serif);font-size:30px;color:var(--color-primary);text-align:center;margin-bottom:10px}
.contact-card>p{text-align:center;color:var(--color-text-light);margin-bottom:40px}
.contact-form{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.form-group{display:flex;flex-direction:column;gap:8px}
.form-group.full{grid-column:1/-1}
.form-group label{font-size:14px;font-weight:500;color:var(--color-text)}
.form-group input,.form-group textarea{height:48px;border:1px solid rgba(47,74,60,.15);border-radius:var(--radius-input);padding:0 16px;font-size:15px;background:#fff;transition:var(--transition)}
.form-group textarea{height:auto;padding:14px 16px;resize:none}
.form-group input:focus,.form-group textarea:focus{border-color:var(--color-accent);box-shadow:0 0 0 2px rgba(196,169,98,.35)}
.form-group input:hover,.form-group textarea:hover{border-color:rgba(196,169,98,.4)}
.form-submit-row{grid-column:1/-1;display:flex;align-items:center;gap:24px;flex-wrap:wrap;justify-content:center;margin-top:8px}
.form-submit-row .btn-primary{min-width:120px}
.contact-note{font-size:14px;color:var(--color-text-light);display:flex;align-items:center;gap:8px}
.contact-note i{color:var(--color-accent)}
.form-status{grid-column:1/-1;display:none;text-align:center;padding:14px;border-radius:8px;font-size:14px}
.form-status.success{display:block;background:rgba(61,123,90,.1);color:var(--color-success)}
.form-status.error{display:block;background:rgba(169,68,50,.1);color:var(--color-error)}

/* Footer */
.site-footer{background:var(--color-bg-deep);color:rgba(255,255,255,.7);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:48px;padding-bottom:56px}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.55);max-width:280px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px;font-family:var(--font-serif)}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.6);transition:var(--transition)}
.footer-col a:hover{color:var(--color-accent);padding-left:4px}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.55);display:flex;align-items:center;gap:10px;margin-bottom:10px}
.footer-contact i{color:var(--color-accent);width:16px}
.footer-qr{width:96px;height:96px;background:rgba(255,255,255,.1);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:12px;color:rgba(255,255,255,.4);border:1px dashed rgba(255,255,255,.2);margin-top:8px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:24px 0;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13px;color:rgba(255,255,255,.4)}
.footer-bottom-links{display:flex;gap:24px;align-items:center}
.footer-bottom-links span{cursor:pointer;transition:var(--transition)}
.footer-bottom-links span:hover{color:var(--color-accent)}

/* Floating CTA */
.float-cta{position:fixed;right:24px;bottom:48px;z-index:900;width:auto;padding:14px 24px;border-radius:999px;background:var(--color-accent);color:var(--color-primary);font-size:14px;font-weight:600;display:flex;align-items:center;gap:8px;box-shadow:0 8px 30px rgba(196,169,98,.4);transition:var(--transition);border:1px solid rgba(196,169,98,.3)}
.float-cta:hover{background:var(--color-primary);color:var(--color-accent);transform:translateY(-3px);box-shadow:0 12px 36px rgba(47,74,60,.35)}
.float-cta i{font-size:16px}

/* Responsive */
@media (max-width:1024px){
  .pricing-grid{grid-template-columns:1fr 1fr}
  .pricing-card.featured{grid-column:1/-1}
  .process-steps{grid-template-columns:repeat(3,1fr);gap:16px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .news-layout{grid-template-columns:1fr;gap:28px}
}
@media (max-width:767px){
  .section{padding:60px 0}
  .container,.header-inner{padding:0 16px}
  .main-nav{display:none}
  .hamburger{display:flex}
  .mobile-menu{width:100%;top:var(--header-h)}
  .hero h1{font-size:28px;line-height:1.35}
  .hero-sub{font-size:15px}
  .hero{min-height:auto;padding-top:var(--header-h)}
  .feature-grid{grid-template-columns:1fr}
  .feature-banner{flex-direction:column;text-align:center;padding:32px 24px}
  .process-steps{grid-template-columns:1fr;gap:12px;position:relative;padding-left:20px}
  .process-step{text-align:left;padding:24px}
  .process-step .step-ico{margin:0 0 12px}
  .stats-row{grid-template-columns:1fr 1fr;gap:0}
  .stat-item{border-right:none;border-bottom:1px solid var(--color-border);padding:24px 12px}
  .stat-item:nth-child(odd){border-right:1px solid var(--color-border)}
  .stat-item:nth-child(n+3){border-bottom:none}
  .case-row{grid-template-columns:1fr}
  .pricing-grid{grid-template-columns:1fr}
  .pricing-card.featured{grid-column:1}
  .contact-card{padding:32px 20px}
  .contact-form{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;text-align:center}
  .float-cta{right:16px;bottom:24px;width:48px;height:48px;padding:0;justify-content:center;border-radius:50%}
  .float-cta span{display:none}
  .float-cta i{font-size:20px}
  .hero-trust{gap:10px;flex-direction:column;align-items:center}
}
@media (max-width:520px){
  .hero h1{font-size:24px}
  .btn-primary,.btn-secondary{padding:12px 22px;font-size:14px}
  .stat-num{font-size:34px}
}

/* roulang page: article */
:root {
  --color-primary: #2F4A3C;
  --color-accent: #C4A962;
  --color-bg: #F8F5F0;
  --color-bg-deep: #1F332A;
  --color-callout: #B5553D;
  --color-text: #243B31;
  --color-text-light: #6B7D72;
  --color-white: #FAF8F5;
  --color-border: rgba(47,74,60,0.08);
  --radius-card: 16px;
  --radius-btn: 8px;
  --radius-input: 8px;
  --radius-pill: 999px;
  --shadow-card: 0 2px 10px rgba(47,74,60,0.06);
  --shadow-hover: 0 12px 28px rgba(47,74,60,0.12);
  --font-heading: "Noto Serif SC", "Songti SC", STSong, serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --container: 1200px;
  --space-section: 90px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--color-accent); }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 64px;
  z-index: 1000;
  background: rgba(248,245,240,0.55);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  border-bottom: 1px solid var(--color-border);
  transition: background .3s, box-shadow .3s;
}
.site-header.scrolled {
  background: rgba(248,245,240,0.95);
  box-shadow: 0 4px 20px rgba(47,74,60,0.08);
}
.header-inner {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.logo {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.logo-main {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 1px;
}
.logo-sub {
  font-size: 10px;
  color: var(--color-text-light);
  letter-spacing: 3px;
  text-transform: uppercase;
}
.main-nav {
  display: flex;
  list-style: none;
  gap: 4px;
  align-items: center;
}
.main-nav .nav-link {
  display: inline-block;
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-pill);
  transition: background .2s, color .2s;
}
.main-nav .nav-link:hover { background: rgba(47,74,60,0.06); color: var(--color-primary); }
.main-nav .nav-link.active { background: var(--color-primary); color: #fff; }
.nav-item { position: relative; }
.nav-item .caret { font-size: 10px; margin-left: 4px; }
.dropdown-panel {
  position: absolute;
  top: 100%;
  right: 0;
  min-width: 220px;
  background: rgba(248,245,240,0.98);
  backdrop-filter: blur(14px);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-hover);
  border: 1px solid var(--color-border);
  padding: 10px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all .25s ease;
  z-index: 100;
}
.nav-item:hover .dropdown-panel,
.nav-item:focus-within .dropdown-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown-panel a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-btn);
  color: var(--color-text);
  font-size: 14px;
  transition: background .2s;
}
.dropdown-panel a:hover { background: rgba(47,74,60,0.06); color: var(--color-primary); }
.d-icon { font-size: 18px; }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle .bar {
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: all .3s;
}
.nav-toggle.active .bar:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active .bar:nth-child(2) { opacity: 0; }
.nav-toggle.active .bar:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-primary);
  color: #fff;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 500;
  margin-left: 6px;
  transition: background .2s, transform .2s;
}
.nav-cta:hover { background: #23382E; color: #fff; transform: translateY(-2px); }

/* ===== 文章 Hero ===== */
.article-hero {
  background: linear-gradient(rgba(31,51,42,0.88), rgba(31,51,42,0.82)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding: 130px 0 64px;
  color: var(--color-white);
  text-align: center;
  position: relative;
}
.breadcrumb {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(250,248,245,0.7);
  margin-bottom: 22px;
  letter-spacing: 1px;
}
.breadcrumb a { color: rgba(250,248,245,0.7); transition: color .2s; }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb .sep { opacity: .5; }
.breadcrumb .current { color: var(--color-accent); }
.article-hero h1 {
  font-family: var(--font-heading);
  font-size: 38px;
  font-weight: 700;
  line-height: 1.3;
  max-width: 860px;
  margin: 0 auto 16px;
  color: #fff;
  letter-spacing: 1px;
}
.article-meta {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 22px;
  font-size: 14px;
  color: rgba(250,248,245,0.8);
}
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-meta i { color: var(--color-accent); }

/* ===== 文章主内容 ===== */
.article-main {
  padding: 64px 0 40px;
  background: var(--color-bg);
}
.article-wrap {
  max-width: 900px;
  margin: 0 auto;
}
.article-cover {
  border-radius: var(--radius-card);
  overflow: hidden;
  margin-bottom: 44px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
}
.article-cover img { width: 100%; height: auto; }
.article-body {
  max-width: 720px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
}
.article-body p { margin-bottom: 16px; }
.article-body h2 {
  font-family: var(--font-heading);
  font-size: 26px;
  color: var(--color-primary);
  margin: 40px 0 16px;
  padding-left: 16px;
  position: relative;
  line-height: 1.4;
}
.article-body h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 22px;
  background: var(--color-accent);
  border-radius: 3px;
}
.article-body h3 {
  font-family: var(--font-heading);
  font-size: 20px;
  color: var(--color-primary);
  margin: 28px 0 12px;
  line-height: 1.4;
}
.article-body h4 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  margin: 20px 0 8px;
}
.article-body blockquote {
  border-left: 4px solid var(--color-primary);
  background: rgba(47,74,60,0.04);
  border-radius: 8px;
  padding: 16px 20px;
  margin: 24px 0;
  color: var(--color-text-light);
  font-style: normal;
}
.article-body blockquote p { margin-bottom: 0; }
.article-body ul, .article-body ol {
  margin: 16px 0;
  padding-left: 24px;
}
.article-body li { margin-bottom: 8px; }
.article-body a { color: var(--color-primary); text-decoration: underline; text-underline-offset: 4px; }
.article-body a:hover { color: var(--color-accent); }
.article-body img {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  margin: 24px 0 8px;
}
.article-body figure {
  margin: 24px 0;
}
.article-body figcaption {
  font-size: 14px;
  color: var(--color-text-light);
  text-align: center;
  margin-top: 8px;
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}
.article-body th, .article-body td {
  border: 1px solid rgba(47,74,60,0.12);
  padding: 10px 14px;
  text-align: left;
}
.article-body th {
  background: rgba(47,74,60,0.05);
  font-weight: 600;
}
.article-body strong { font-weight: 600; }

/* ===== 标签与分享 ===== */
.article-share-bar {
  max-width: 720px;
  margin: 40px auto 0;
  padding-top: 28px;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.article-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.tag {
  display: inline-block;
  padding: 5px 14px;
  background: rgba(47,74,60,0.06);
  border-radius: var(--radius-pill);
  font-size: 12px;
  color: var(--color-primary);
}
.share-actions { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--color-text-light); }
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  background: rgba(47,74,60,0.05);
  font-size: 13px;
  color: var(--color-text);
  transition: background .2s, color .2s;
}
.share-btn:hover { background: var(--color-primary); color: #fff; }

/* ===== 相关推荐 ===== */
.related-section {
  padding: 72px 0 var(--space-section);
  background: var(--color-bg);
}
.section-title {
  text-align: center;
  font-family: var(--font-heading);
  font-size: 30px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
  letter-spacing: 1px;
}
.section-subtitle {
  text-align: center;
  color: var(--color-text-light);
  font-size: 15px;
  margin-bottom: 40px;
}
.related-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  display: block;
  background: #fff;
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  transition: box-shadow .3s, transform .3s, border-color .3s;
}
.related-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: rgba(196,169,98,0.5);
}
.related-cover {
  height: 180px;
  overflow: hidden;
}
.related-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.related-card:hover .related-cover img { transform: scale(1.03); }
.related-card h3 {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin: 16px 20px 8px;
  line-height: 1.4;
}
.related-card p {
  font-size: 14px;
  color: var(--color-text-light);
  margin: 0 20px 18px;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.back-to-list {
  text-align: center;
  margin-top: 36px;
}
.btn-secondary {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  font-size: 15px;
  font-weight: 500;
  background: transparent;
  transition: background .2s, color .2s;
}
.btn-secondary:hover { background: rgba(47,74,60,0.08); color: var(--color-primary); }

/* ===== 未找到 ===== */
.not-found-section {
  padding: 120px 0;
  background: var(--color-bg);
  text-align: center;
}
.not-found-wrap {
  max-width: 520px;
  margin: 0 auto;
  padding: 50px 40px;
  background: #fff;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
}
.not-found-wrap .icon { font-size: 48px; margin-bottom: 16px; }
.not-found-wrap h1 { font-family: var(--font-heading); font-size: 28px; color: var(--color-primary); margin-bottom: 10px; }
.not-found-wrap p { color: var(--color-text-light); margin-bottom: 24px; }

/* ===== CTA ===== */
.cta-section {
  background: var(--color-bg-deep);
  padding: 64px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(196,169,98,0.12), transparent 60%);
}
.cta-section .container { position: relative; }
.cta-section h2 {
  font-family: var(--font-heading);
  font-size: 28px;
  color: #fff;
  margin-bottom: 10px;
  letter-spacing: 1px;
}
.cta-section p { color: rgba(250,248,245,0.75); font-size: 15px; margin-bottom: 24px; }
.btn-primary {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-bg-deep);
  padding: 13px 32px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: background .2s, transform .2s, box-shadow .2s;
  box-shadow: 0 4px 16px rgba(196,169,98,0.25);
}
.btn-primary:hover { background: #D3BC78; color: var(--color-bg-deep); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(196,169,98,0.35); }
.btn-primary:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; }

/* ===== Footer ===== */
.site-footer {
  background: var(--color-bg-deep);
  color: rgba(250,248,245,0.75);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 0.8fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(250,248,245,0.1);
}
.footer-brand .logo { color: #fff; margin-bottom: 14px; }
.footer-brand .logo .logo-main { color: #fff; }
.footer-brand .logo .logo-sub { color: rgba(250,248,245,0.5); }
.footer-brand p { font-size: 14px; line-height: 1.7; max-width: 280px; color: rgba(250,248,245,0.6); }
.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 14px;
  letter-spacing: 1px;
  font-family: var(--font-heading);
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a {
  color: rgba(250,248,245,0.65);
  font-size: 14px;
  transition: color .2s, padding-left .2s;
}
.footer-col ul li a:hover { color: var(--color-accent); padding-left: 4px; }
.footer-contact li { display: flex; align-items: center; gap: 8px; font-size: 14px; color: rgba(250,248,245,0.65); }
.footer-contact li i { width: 18px; text-align: center; color: var(--color-accent); }
.footer-qr {
  margin-top: 14px;
  width: 84px;
  height: 84px;
  background: rgba(250,248,245,0.08);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: rgba(250,248,245,0.4);
  border: 1px solid rgba(250,248,245,0.12);
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding: 22px 0;
  font-size: 13px;
  color: rgba(250,248,245,0.45);
}
.footer-bottom-links { display: flex; gap: 20px; }

/* ===== 移动端适配 ===== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .related-list { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
  .article-hero h1 { font-size: 32px; }
}
@media (min-width: 768px) and (max-width: 1023px) {
  .related-list { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 767px) {
  .container { padding: 0 16px; }
  :root { --space-section: 60px; }
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: 64px;
    right: -100%;
    width: 300px;
    height: calc(100vh - 64px);
    background: rgba(248,245,240,0.96);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    flex-direction: column;
    align-items: flex-start;
    padding: 28px 20px;
    gap: 10px;
    border-radius: 16px 0 0 16px;
    box-shadow: -10px 4px 30px rgba(47,74,60,0.15);
    transition: right .3s ease;
    z-index: 999;
    overflow-y: auto;
  }
  .main-nav.open { right: 0; }
  .main-nav .nav-link { width: 100%; font-size: 16px; }
  .nav-item { width: 100%; }
  .dropdown-panel {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: rgba(47,74,60,0.04);
    margin-top: 4px;
    padding: 8px;
    width: 100%;
  }
  .nav-cta { margin-left: 0; width: 100%; justify-content: center; }
  .article-hero { padding: 110px 0 44px; }
  .article-hero h1 { font-size: 24px; }
  .article-meta { gap: 10px; font-size: 13px; }
  .article-body { font-size: 15px; }
  .article-body h2 { font-size: 21px; }
  .article-body h3 { font-size: 18px; }
  .article-share-bar { flex-direction: column; align-items: flex-start; }
  .related-list { grid-template-columns: 1fr; }
  .section-title { font-size: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-section h2 { font-size: 22px; }
}

/* roulang page: category1 */
/* ========== 设计变量 ========== */
        :root {
            --color-primary: #2F4A3C;
            --color-accent: #C4A962;
            --color-bg: #F8F5F0;
            --color-bg-deep: #1F332A;
            --color-callout: #B5553D;
            --color-text: #2C2E2D;
            --color-text-weak: #6B756F;
            --color-border: rgba(47, 74, 60, 0.08);
            --color-success: #3D7B5A;
            --color-warning: #B08D3F;
            --color-error: #A94432;
            --color-white: #FFFFFF;
            --radius-card: 16px;
            --radius-btn: 8px;
            --radius-input: 8px;
            --radius-tag: 999px;
            --shadow-card: 0 2px 10px rgba(47, 74, 60, 0.06);
            --shadow-hover: 0 12px 28px rgba(47, 74, 60, 0.12);
            --container: 1200px;
            --space-section: 90px;
            --space-section-mobile: 60px;
            --font-serif: "Noto Serif SC", "Songti SC", "STSong", serif;
            --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
        }

        /* ========== Reset & Base ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            scroll-padding-top: 80px;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: var(--color-accent);
        }
        ul {
            list-style: none;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 15px;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.2;
            border: 1px solid transparent;
            transition: all 0.28s cubic-bezier(0.2, 0.8, 0.2, 1);
        }
        .btn:focus-visible {
            outline: 2px solid rgba(196, 169, 98, 0.5);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }
        .btn-primary:hover {
            background: #243A2F;
            border-color: #243A2F;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border-color: var(--color-primary);
        }
        .btn-outline:hover {
            background: rgba(47, 74, 60, 0.08);
            color: var(--color-primary);
            transform: translateY(-2px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }
        .btn-light {
            background: #fff;
            color: var(--color-primary);
            border-color: #fff;
        }
        .btn-light:hover {
            background: rgba(255, 255, 255, 0.9);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            color: var(--color-primary);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
        }
        .btn-block {
            width: 100%;
        }

        /* ========== 标签 ========== */
        .tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: var(--radius-tag);
            font-size: 12px;
            font-weight: 500;
            background: rgba(196, 169, 98, 0.14);
            color: var(--color-primary);
            border: 1px solid rgba(196, 169, 98, 0.25);
        }

        /* ========== Section 通用 ========== */
        .section {
            padding: var(--space-section) 0;
        }
        .section-dark {
            background: var(--color-bg-deep);
            color: rgba(255, 255, 255, 0.9);
        }
        .section-head {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 48px;
        }
        .section-head .tag {
            margin-bottom: 14px;
        }
        .section-title {
            font-family: var(--font-serif);
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-primary);
            letter-spacing: 1px;
        }
        .section-dark .section-title {
            color: #fff;
        }
        .section-desc {
            margin-top: 14px;
            color: var(--color-text-weak);
            font-size: 16px;
        }
        .section-dark .section-desc {
            color: rgba(255, 255, 255, 0.65);
        }

        /* ========== Header/Nav ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 64px;
            z-index: 1000;
            background: rgba(248, 245, 240, 0.55);
            backdrop-filter: blur(14px) saturate(1.2);
            -webkit-backdrop-filter: blur(14px) saturate(1.2);
            border-bottom: 1px solid rgba(47, 74, 60, 0.08);
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }
        .site-header.scrolled {
            background: rgba(248, 245, 240, 0.95);
            box-shadow: 0 4px 20px rgba(47, 74, 60, 0.08);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 24px;
        }
        .brand-logo {
            display: flex;
            flex-direction: column;
            line-height: 1.1;
            flex-shrink: 0;
        }
        .brand-name {
            font-family: var(--font-serif);
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 2px;
        }
        .brand-sub {
            font-size: 10px;
            color: var(--color-text-weak);
            letter-spacing: 1px;
            font-weight: 400;
            text-transform: uppercase;
        }
        .desktop-nav {
            display: flex;
            align-items: center;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .main-nav>li {
            position: relative;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            border-radius: 8px;
            transition: background 0.25s, color 0.25s;
        }
        .nav-link:hover {
            background: rgba(47, 74, 60, 0.05);
            color: var(--color-primary);
        }
        .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
            background: rgba(47, 74, 60, 0.06);
        }
        .caret {
            font-size: 10px;
            display: inline-block;
            transition: transform 0.3s;
        }
        .has-dropdown:hover .caret {
            transform: rotate(180deg);
        }
        .dropdown-panel {
            position: absolute;
            top: calc(100% + 8px);
            left: 0;
            min-width: 220px;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(14px);
            border: 1px solid var(--color-border);
            border-radius: 14px;
            box-shadow: var(--shadow-hover);
            padding: 10px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.28s ease;
            z-index: 200;
        }
        .has-dropdown:hover .dropdown-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .dropdown-panel a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text);
            transition: background 0.2s, color 0.2s;
        }
        .dropdown-panel a:hover {
            background: rgba(47, 74, 60, 0.05);
            color: var(--color-primary);
        }
        .dropdown-panel a.active {
            background: rgba(47, 74, 60, 0.08);
            color: var(--color-primary);
            font-weight: 600;
        }
        .d-icon {
            font-size: 18px;
            width: 28px;
            text-align: center;
            flex-shrink: 0;
        }
        .nav-tools {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .nav-cta {
            display: none;
        }
        .nav-toggle {
            display: none;
            font-size: 22px;
            color: var(--color-primary);
            width: 40px;
            height: 40px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(47, 74, 60, 0.06);
        }
        .mobile-drawer {
            position: fixed;
            top: 64px;
            right: 0;
            width: min(320px, 82vw);
            height: calc(100vh - 64px);
            background: rgba(248, 245, 240, 0.96);
            backdrop-filter: blur(18px) saturate(1.2);
            border-left: 1px solid var(--color-border);
            box-shadow: -8px 0 24px rgba(47, 74, 60, 0.08);
            padding: 24px 20px;
            transform: translateX(105%);
            transition: transform 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
            z-index: 999;
            overflow-y: auto;
        }
        .mobile-drawer.open {
            transform: translateX(0);
        }
        .mobile-nav li {
            margin-bottom: 6px;
        }
        .m-nav-link {
            display: block;
            padding: 12px 14px;
            font-size: 16px;
            font-weight: 500;
            color: var(--color-text);
            border-radius: 10px;
        }
        .m-nav-link:hover,
        .m-nav-link.active {
            background: rgba(47, 74, 60, 0.06);
            color: var(--color-primary);
        }
        .m-nav-title {
            display: block;
            padding: 12px 14px 4px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-weak);
        }
        .m-nav-sublink {
            display: block;
            padding: 10px 14px 10px 28px;
            font-size: 15px;
            color: var(--color-text);
            border-radius: 8px;
        }
        .m-nav-sublink:hover,
        .m-nav-sublink.active {
            background: rgba(196, 169, 98, 0.12);
            color: var(--color-primary);
        }
        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(31, 51, 42, 0.35);
            z-index: 998;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease;
        }
        .drawer-overlay.open {
            opacity: 1;
            visibility: visible;
        }

        /* ========== Hero 分类页 ========== */
        .category-hero {
            position: relative;
            background: linear-gradient(rgba(31, 51, 42, 0.85), rgba(31, 51, 42, 0.9)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 170px 0 80px;
            color: #fff;
        }
        .category-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 28px;
        }
        .category-hero .breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
        }
        .category-hero .breadcrumb a:hover {
            color: var(--color-accent);
        }
        .bc-sep {
            color: rgba(255, 255, 255, 0.4);
        }
        .bc-current {
            color: var(--color-accent);
        }
        .hero-title {
            font-family: var(--font-serif);
            font-size: 44px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: 3px;
            margin-bottom: 20px;
            max-width: 760px;
        }
        .hero-title .dot {
            color: var(--color-accent);
        }
        .hero-desc {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.78);
            max-width: 680px;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-tags {
            display: flex;
            gap: 24px;
            margin-top: 40px;
            flex-wrap: wrap;
            padding-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.14);
        }
        .hero-tag {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.72);
        }
        .hero-tag i {
            font-style: normal;
            font-size: 16px;
        }

        /* ========== 主内容非对称区 ========== */
        .category-main {
            padding: var(--space-section) 0 60px;
        }
        .category-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 40px;
            align-items: start;
        }
        .category-content {
            display: flex;
            flex-direction: column;
            gap: 48px;
        }
        .sub-section {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 36px;
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .sub-section:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(196, 169, 98, 0.4);
        }
        .sub-section-head {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 18px;
        }
        .section-no {
            font-family: var(--font-serif);
            font-size: 28px;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1;
        }
        .sub-section h2 {
            font-family: var(--font-serif);
            font-size: 26px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.3;
        }
        .sub-section-img {
            border-radius: 12px;
            overflow: hidden;
            margin: 20px 0;
            border: 1px solid var(--color-border);
        }
        .sub-section-img img {
            width: 100%;
            height: 260px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .sub-section:hover .sub-section-img img {
            transform: scale(1.02);
        }
        .sub-section p {
            font-size: 15.5px;
            line-height: 1.85;
            color: var(--color-text-weak);
        }
        .sub-section-features {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 18px;
        }
        .feature-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(47, 74, 60, 0.05);
            border-radius: var(--radius-tag);
            padding: 6px 14px;
            font-size: 13px;
            color: var(--color-primary);
            border: 1px solid var(--color-border);
        }
        .feature-chip::before {
            content: "";
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--color-accent);
        }

        /* ========== 右侧边栏 ========== */
        .category-sidebar {
            position: sticky;
            top: 90px;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .side-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
        }
        .side-card h3 {
            font-family: var(--font-serif);
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            padding-bottom: 14px;
            border-bottom: 1px solid var(--color-border);
            margin-bottom: 14px;
        }
        .side-list li+li {
            border-top: 1px solid rgba(47, 74, 60, 0.05);
        }
        .side-list a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 15px 6px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text);
            border-radius: 8px;
            transition: all 0.2s;
        }
        .side-list a:hover {
            background: rgba(47, 74, 60, 0.04);
            color: var(--color-primary);
            padding-left: 12px;
        }
        .side-num {
            font-family: var(--font-serif);
            font-size: 20px;
            font-weight: 700;
            color: var(--color-accent);
            min-width: 24px;
        }
        .side-contact {
            background: linear-gradient(145deg, var(--color-bg-deep), #16251d);
            color: #fff;
            border: none;
            position: relative;
            overflow: hidden;
        }
        .side-contact::before {
            content: "";
            position: absolute;
            top: -40px;
            right: -40px;
            width: 100px;
            height: 100px;
            border-radius: 50%;
            background: rgba(196, 169, 98, 0.12);
        }
        .side-contact h3 {
            color: #fff;
            border-bottom-color: rgba(255, 255, 255, 0.15);
        }
        .side-contact p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
            line-height: 1.7;
        }
        .side-contact .btn {
            width: 100%;
        }
        .side-countries {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px;
        }
        .side-countries h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 14px;
        }
        .country-list {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .country-list span {
            font-size: 12px;
            padding: 4px 10px;
            background: rgba(47, 74, 60, 0.05);
            border-radius: var(--radius-tag);
            color: var(--color-text);
            border: 1px solid var(--color-border);
        }

        /* ========== 统计区 ========== */
        .stats-section {
            background: var(--color-bg-deep);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .stats-section::after {
            content: "";
            position: absolute;
            right: -80px;
            bottom: -80px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(196, 169, 98, 0.05);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
        }
        .stat-item {
            text-align: center;
            padding: 20px 10px;
        }
        .stat-num {
            font-family: var(--font-serif);
            font-size: 44px;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1.2;
            display: block;
            letter-spacing: 1px;
        }
        .stat-label {
            display: block;
            margin-top: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            letter-spacing: 1px;
        }

        /* ========== 流程区 ========== */
        .process-section {
            padding: var(--space-section) 0;
            background: #fff;
        }
        .process-steps {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
            margin-top: 16px;
            position: relative;
        }
        .process-steps::before {
            content: "";
            position: absolute;
            top: 28px;
            left: 6%;
            width: 88%;
            height: 2px;
            background: linear-gradient(to right, var(--color-accent), rgba(196, 169, 98, 0.2));
            z-index: 1;
        }
        .step-item {
            text-align: center;
            padding: 16px 12px;
            position: relative;
            z-index: 2;
        }
        .step-dot {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-family: var(--font-serif);
            font-size: 20px;
            font-weight: 700;
            box-shadow: 0 0 0 4px rgba(196, 169, 98, 0.2);
        }
        .step-item h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 4px;
        }
        .step-item p {
            font-size: 13px;
            color: var(--color-text-weak);
            line-height: 1.6;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: var(--space-section) 0;
            background: var(--color-bg);
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
        }
        .faq-item {
            border-bottom: 1px solid var(--color-border);
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-q {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            min-height: 56px;
            padding: 10px 20px;
            font-size: 16px;
            font-weight: 500;
            color: var(--color-text);
            text-align: left;
            background: transparent;
            transition: background 0.25s;
        }
        .faq-q:hover {
            background: rgba(196, 169, 98, 0.06);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(47, 74, 60, 0.06);
            font-size: 14px;
            color: var(--color-primary);
            transition: transform 0.3s;
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            background: var(--color-primary);
            color: #fff;
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 20px;
            color: var(--color-text-weak);
            font-size: 15px;
            line-height: 1.8;
            border-top: 1px solid transparent;
        }
        .faq-item.open .faq-a {
            max-height: 300px;
            padding: 18px 20px;
            border-top-color: var(--color-border);
        }

        /* ========== CTA / 联系 ========== */
        .cta-section {
            padding: var(--space-section) 0;
            background: #fff;
        }
        .cta-card {
            max-width: 900px;
            margin: 0 auto;
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: 20px;
            padding: 48px;
            box-shadow: var(--shadow-card);
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
        }
        .cta-info h2 {
            font-family: var(--font-serif);
            font-size: 30px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.3;
            margin-bottom: 14px;
        }
        .cta-info p {
            color: var(--color-text-weak);
            font-size: 15px;
            margin-bottom: 20px;
            line-height: 1.8;
        }
        .cta-contact-line {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
            color: var(--color-text);
            margin-bottom: 10px;
        }
        .cta-contact-line i {
            font-style: normal;
            width: 20px;
        }
        .contact-form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }
        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text);
            margin-bottom: 6px;
        }
        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 13px 16px;
            border: 1px solid rgba(47, 74, 60, 0.15);
            border-radius: var(--radius-input);
            background: #fff;
            font-size: 15px;
            color: var(--color-text);
            transition: border-color 0.25s, box-shadow 0.25s;
        }
        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(196, 169, 98, 0.18);
        }
        .form-group textarea {
            resize: vertical;
            min-height: 80px;
        }
        .form-tip {
            font-size: 13px;
            color: var(--color-text-weak);
            text-align: center;
            margin-top: 4px;
        }
        .form-status {
            border-radius: 10px;
            padding: 12px 16px;
            font-size: 14px;
            text-align: center;
            display: none;
            margin-top: 6px;
        }
        .form-status.success {
            display: block;
            background: rgba(61, 123, 90, 0.12);
            color: var(--color-success);
            border: 1px solid rgba(61, 123, 90, 0.25);
        }
        .form-status.error {
            display: block;
            background: rgba(169, 68, 50, 0.1);
            color: var(--color-error);
            border: 1px solid rgba(169, 68, 50, 0.2);
        }

        /* ========== 浮动CTA ========== */
        .floating-cta {
            position: fixed;
            right: 28px;
            bottom: 32px;
            z-index: 900;
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--color-primary);
            color: #fff;
            padding: 14px 24px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            box-shadow: 0 8px 24px rgba(47, 74, 60, 0.28);
            transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
        }
        .floating-cta:hover {
            background: var(--color-accent);
            color: var(--color-primary);
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(196, 169, 98, 0.4);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--color-bg-deep);
            color: rgba(255, 255, 255, 0.65);
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .logo {
            font-family: var(--font-serif);
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 2px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 260px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: color 0.25s, padding-left 0.25s;
        }
        .footer-col ul a:hover {
            color: var(--color-accent);
            padding-left: 4px;
        }
        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 14px;
            line-height: 1.6;
        }
        .footer-contact li i {
            font-style: normal;
            font-size: 16px;
            flex-shrink: 0;
        }
        .footer-qr {
            margin-top: 16px;
            width: 96px;
            height: 96px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom-links {
            display: flex;
            gap: 20px;
            align-items: center;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .category-layout {
                grid-template-columns: 1fr 280px;
                gap: 28px;
            }
            .process-steps {
                grid-template-columns: repeat(5, 1fr);
            }
            .process-steps::before {
                display: none;
            }
            .stats-grid {
                gap: 20px;
            }
            .cta-card {
                grid-template-columns: 1fr;
                padding: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 767px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section {
                padding: var(--space-section-mobile) 0;
            }
            .desktop-nav {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
            .nav-tools {
                margin-left: auto;
            }
            .category-hero {
                padding: 130px 0 60px;
            }
            .hero-title {
                font-size: 28px;
                letter-spacing: 1px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .hero-tags {
                gap: 12px 20px;
            }
            .category-layout {
                grid-template-columns: 1fr;
            }
            .category-sidebar {
                position: static;
                order: 2;
            }
            .sub-section {
                padding: 24px 20px;
            }
            .sub-section h2 {
                font-size: 20px;
            }
            .section-no {
                font-size: 22px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px 12px;
            }
            .stat-num {
                font-size: 32px;
            }
            .process-steps {
                grid-template-columns: 1fr;
                gap: 24px;
                padding-left: 20px;
                margin-top: 0;
                border-left: 2px solid rgba(196, 169, 98, 0.3);
            }
            .process-steps::before {
                display: none;
            }
            .step-item {
                text-align: left;
                padding: 0;
                display: flex;
                align-items: flex-start;
                gap: 16px;
            }
            .step-dot {
                width: 36px;
                height: 36px;
                font-size: 15px;
                margin: 0;
                flex-shrink: 0;
            }
            .step-text {
                padding-top: 2px;
            }
            .step-item p {
                font-size: 13px;
            }
            .faq-q {
                font-size: 14px;
                padding: 12px 14px;
            }
            .faq-item.open .faq-a {
                padding: 12px 14px 16px;
            }
            .cta-card {
                padding: 24px 20px;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-bottom-links {
                flex-wrap: wrap;
                justify-content: center;
            }
            .floating-cta {
                right: 16px;
                bottom: 16px;
                width: 48px;
                height: 48px;
                padding: 0;
                justify-content: center;
                border-radius: 50%;
                font-size: 13px;
            }
            .floating-cta span {
                display: none;
            }
            .floating-cta::before {
                content: "方案";
                font-size: 13px;
                font-weight: 600;
            }
        }
        @media (max-width: 374px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn {
                width: 100%;
            }
        }

/* roulang page: category2 */
:root {
  --color-primary: #2F4A3C;
  --color-primary-dark: #243A2F;
  --color-accent: #C4A962;
  --color-accent-light: rgba(196,169,98,0.12);
  --color-bg: #F8F5F0;
  --color-bg-deep: #1F332A;
  --color-bg-deep-2: #15251D;
  --color-callout: #B5553D;
  --color-success: #3D7B5A;
  --color-warning: #B08D3F;
  --color-error: #A94432;
  --color-text: #2E3D36;
  --color-text-soft: #6E7B74;
  --color-text-light: #9AA59F;
  --color-border: rgba(47,74,60,0.08);
  --font-title: "Noto Serif SC", "Songti SC", STSong, serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --radius-card: 16px;
  --radius-btn: 8px;
  --radius-input: 8px;
  --radius-pill: 999px;
  --shadow-card: 0 2px 10px rgba(47,74,60,0.06);
  --shadow-hover: 0 12px 28px rgba(47,74,60,0.12);
  --nav-height: 64px;
  --container-w: 1200px;
  --section-pad: 90px;
  --transition: all .3s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); font-size: 16px; line-height: 1.75; color: var(--color-text); background: var(--color-bg); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; display: block; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-title); line-height: 1.3; font-weight: 600; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid rgba(196,169,98,0.5); outline-offset: 2px; }
.container { max-width: var(--container-w); margin: 0 auto; padding-left: 24px; padding-right: 24px; }
section { padding: var(--section-pad) 0; }

/* Header */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; height: var(--nav-height);
  background: rgba(248,245,240,0.55);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000; transition: all .3s ease;
}
.site-header.scrolled { background: rgba(248,245,240,0.95); box-shadow: 0 4px 20px rgba(47,74,60,0.08); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.logo { display: flex; flex-direction: column; line-height: 1.1; }
.logo a { font-family: var(--font-title); font-size: 22px; font-weight: 700; color: var(--color-primary); letter-spacing: 1px; }
.logo a span { color: var(--color-accent); }
.logo-sub { font-size: 11px; letter-spacing: 2px; color: var(--color-text-light); margin-top: 4px; }
.main-navigation { display: flex; align-items: center; }
.main-nav { display: flex; list-style: none; gap: 4px; }
.main-nav > li { position: relative; }
.nav-link { display: flex; align-items: center; gap: 4px; padding: 10px 14px; border-radius: var(--radius-btn); font-size: 15px; font-weight: 500; color: var(--color-text); }
.nav-link:hover { color: var(--color-primary); background: rgba(47,74,60,0.05); }
.nav-link.active { color: var(--color-primary); font-weight: 600; background: var(--color-accent-light); }
.caret { font-size: 11px; transform: scale(.8); }
.dropdown-panel {
  position: absolute; top: 100%; left: 0; width: 230px;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-hover);
  padding: 8px;
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: all .25s ease; z-index: 990;
}
.nav-item:hover .dropdown-panel { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown-panel a { display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-radius: 10px; font-size: 14px; color: var(--color-text); }
.dropdown-panel a:hover { background: rgba(47,74,60,0.06); color: var(--color-primary); }
.dropdown-panel a.active { background: var(--color-accent-light); color: var(--color-primary); font-weight: 600; }
.d-icon { width: 28px; height: 28px; display: inline-flex; align-items: center; justify-content: center; border-radius: 8px; background: rgba(47,74,60,0.08); font-size: 14px; flex-shrink: 0; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.nav-toggle { display: none; background: none; border: none; font-size: 24px; color: var(--color-primary); cursor: pointer; width: 40px; height: 40px; border-radius: 8px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 28px; border-radius: var(--radius-btn);
  font-size: 15px; font-weight: 600; border: none; cursor: pointer;
  transition: var(--transition); min-width: 120px; line-height: 1.4;
}
.btn-primary { background: var(--color-accent); color: var(--color-bg-deep); }
.btn-primary:hover { background: #d4bb78; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(196,169,98,0.35); }
.btn-primary:active { transform: translateY(0); box-shadow: none; }
.btn-secondary { background: transparent; color: #FAF7F2; border: 1.5px solid rgba(248,245,240,0.45); }
.btn-secondary:hover { border-color: var(--color-accent); color: var(--color-accent); }
.btn:focus-visible { outline: 2px solid rgba(196,169,98,0.5); outline-offset: 2px; }

/* Hero */
.cat-hero {
  min-height: 68vh;
  background: linear-gradient(to right, rgba(31,51,42,0.92), rgba(47,74,60,0.72)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  display: flex; align-items: center;
  padding-top: calc(var(--nav-height) + 24px);
  position: relative;
}
.cat-hero-content { max-width: 720px; padding: 48px 0; }
.hero-tag {
  display: inline-block; padding: 6px 16px; border-radius: var(--radius-pill);
  background: rgba(196,169,98,0.16); color: var(--color-accent);
  font-size: 13px; letter-spacing: 1px; margin-bottom: 20px;
  border: 1px solid rgba(196,169,98,0.35);
}
.cat-hero h1 { font-size: 44px; color: #FAF7F2; margin-bottom: 18px; letter-spacing: 2px; }
.hero-lead { font-size: 18px; color: rgba(248,245,240,0.88); margin-bottom: 28px; line-height: 1.7; max-width: 560px; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 32px; }
.hero-trust span { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; color: rgba(248,245,240,0.85); background: rgba(255,255,255,0.08); padding: 6px 14px; border-radius: var(--radius-pill); border: 1px solid rgba(255,255,255,0.08); }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* Data strip */
.data-strip { background: var(--color-bg-deep); padding: 64px 0; }
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-item { text-align: center; padding: 24px 16px; border-radius: var(--radius-card); background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); transition: var(--transition); }
.stat-item:hover { background: rgba(255,255,255,0.08); transform: translateY(-4px); }
.stat-number { font-family: var(--font-title); font-size: 44px; font-weight: 700; color: var(--color-accent); line-height: 1.2; }
.stat-number span { font-size: 20px; }
.stat-label { display: block; margin-top: 8px; font-size: 14px; color: rgba(248,245,240,0.65); }

/* Split section */
.cat-split { background: #fff; }
.split-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; }
.split-content h2 { font-size: 28px; margin-bottom: 16px; }
.split-content > p { font-size: 15px; color: var(--color-text-soft); margin-bottom: 24px; line-height: 1.8; }
.split-list { list-style: none; margin-bottom: 28px; display: grid; gap: 12px; }
.split-list li { display: flex; align-items: center; gap: 10px; font-size: 15px; padding: 10px 14px; background: var(--color-bg); border-radius: 10px; border: 1px solid var(--color-border); }
.li-icon { width: 28px; height: 28px; display: inline-flex; align-items: center; justify-content: center; background: var(--color-accent-light); border-radius: 8px; flex-shrink: 0; }
.split-media { position: relative; }
.split-img { width: 100%; border-radius: var(--radius-card); box-shadow: var(--shadow-hover); object-fit: cover; aspect-ratio: 4/3; }
.split-img-tag { position: absolute; left: 20px; bottom: 20px; background: rgba(47,74,60,0.88); color: #FAF7F2; padding: 8px 16px; border-radius: var(--radius-pill); font-size: 13px; letter-spacing: 1px; }

/* Section head */
.section-head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.section-kicker { display: inline-block; font-size: 12px; letter-spacing: 3px; color: var(--color-accent); text-transform: uppercase; margin-bottom: 10px; }
.section-head h2 { font-size: 32px; margin-bottom: 12px; }
.section-head p { color: var(--color-text-soft); font-size: 15px; line-height: 1.7; }

/* Compliance table */
.compliance-table-section { background: var(--color-bg); }
.table-wrap { overflow-x: auto; border: 1px solid var(--color-border); border-radius: var(--radius-card); background: #fff; box-shadow: var(--shadow-card); }
table.compliance-table { width: 100%; border-collapse: collapse; min-width: 720px; }
.compliance-table th { background: var(--color-primary); color: #FAF7F2; text-align: left; padding: 16px 20px; font-size: 14px; letter-spacing: 1px; font-weight: 600; }
.compliance-table td { padding: 18px 20px; border-bottom: 1px solid var(--color-border); font-size: 15px; vertical-align: top; color: var(--color-text); line-height: 1.7; }
.compliance-table tbody tr:last-child td { border-bottom: none; }
.compliance-table tbody tr { transition: background .2s ease; }
.compliance-table tbody tr:hover { background: rgba(196,169,98,0.06); }
.compliance-table td:first-child { font-weight: 600; color: var(--color-primary); }
.tag-pill { display: inline-block; padding: 3px 10px; border-radius: var(--radius-pill); font-size: 12px; background: var(--color-accent-light); color: var(--color-primary); white-space: nowrap; margin-top: 6px; }

/* Process steps */
.process-steps { background: #fff; }
.step-list { display: grid; grid-template-columns: 1fr; gap: 20px; max-width: 860px; margin: 0 auto; }
.step-card {
  display: flex; gap: 20px; align-items: flex-start;
  padding: 28px 32px; border: 1px solid var(--color-border);
  border-radius: var(--radius-card); background: var(--color-bg);
  box-shadow: var(--shadow-card); transition: var(--transition);
}
.step-card:hover { box-shadow: var(--shadow-hover); border-color: rgba(196,169,98,0.5); transform: translateY(-3px); }
.step-num {
  flex-shrink: 0; width: 48px; height: 48px; border-radius: 12px;
  background: var(--color-primary); color: var(--color-accent);
  font-family: var(--font-title); font-size: 18px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.step-body h3 { font-size: 20px; margin-bottom: 6px; }
.step-body p { font-size: 15px; color: var(--color-text-soft); line-height: 1.7; }

/* FAQ */
.faq-section { background: var(--color-bg); }
.faq-wrap { max-width: 820px; margin: 0 auto; }
.faq-item { background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius-card); margin-bottom: 12px; overflow: hidden; transition: box-shadow .3s ease; }
.faq-item.open { box-shadow: var(--shadow-hover); }
.faq-question {
  width: 100%; min-height: 56px; padding: 0 20px; display: flex; align-items: center; justify-content: space-between;
  background: none; border: none; text-align: left; cursor: pointer;
  font-size: 15px; font-weight: 600; color: var(--color-primary); font-family: var(--font-body);
}
.faq-question:hover { background: rgba(196,169,98,0.06); }
.faq-arrow { width: 20px; height: 20px; transition: transform .3s ease; color: var(--color-accent); flex-shrink: 0; font-size: 14px; }
.faq-item.open .faq-arrow { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .4s ease, padding .3s ease; padding: 0 20px; }
.faq-item.open .faq-answer { max-height: 320px; padding: 18px 20px; }
.faq-answer p { font-size: 14px; color: var(--color-text-soft); line-height: 1.8; }

/* CTA */
.cta-section { background: linear-gradient(135deg, rgba(31,51,42,0.96), rgba(21,37,29,0.94)), url('/assets/images/backpic/back-3.webp') center/cover no-repeat; position: relative; }
.cta-card { max-width: 720px; margin: 0 auto; text-align: center; }
.cta-card h2 { font-size: 32px; color: #FAF7F2; margin-bottom: 12px; }
.cta-card > p { color: rgba(248,245,240,0.75); margin-bottom: 28px; font-size: 15px; }
.cta-form { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.cta-form input {
  width: 48%; max-width: 220px; height: 48px; padding: 0 16px;
  border: 1px solid rgba(248,245,240,0.2); border-radius: var(--radius-input);
  background: rgba(255,255,255,0.08); color: #FAF7F2; font-size: 14px;
  transition: all .3s ease;
}
.cta-form input::placeholder { color: rgba(248,245,240,0.5); }
.cta-form input:focus { outline: none; border-color: var(--color-accent); box-shadow: 0 0 0 2px rgba(196,169,98,0.4); }
.cta-form .btn { min-width: 160px; height: 48px; }
.cta-note { margin-top: 18px; font-size: 13px; color: rgba(248,245,240,0.5); }
.form-feedback { width: 100%; text-align: center; padding: 12px; background: rgba(61,123,90,0.16); border: 1px solid rgba(61,123,90,0.35); color: #D8EFE2; border-radius: 8px; font-size: 14px; }

/* Back home */
.back-home { text-align: center; padding: 20px 0 60px; background: var(--color-bg); }
.back-home a { display: inline-flex; align-items: center; gap: 8px; color: var(--color-primary); font-size: 15px; font-weight: 600; padding: 10px 24px; border-radius: var(--radius-btn); border: 1px solid var(--color-border); background: #fff; }
.back-home a:hover { border-color: var(--color-accent); color: var(--color-accent); box-shadow: var(--shadow-card); }

/* Footer */
.site-footer { background: var(--color-bg-deep); color: rgba(248,245,240,0.7); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 48px; }
.footer-brand .logo { font-family: var(--font-title); font-size: 22px; font-weight: 700; color: #FAF7F2; margin-bottom: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(248,245,240,0.6); max-width: 340px; }
.footer-col h4 { color: #FAF7F2; font-size: 16px; margin-bottom: 16px; font-family: var(--font-body); font-weight: 600; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { font-size: 14px; color: rgba(248,245,240,0.6); }
.footer-col ul a:hover { color: var(--color-accent); }
.footer-contact li { font-size: 14px; color: rgba(248,245,240,0.6); display: flex; align-items: center; gap: 8px; }
.footer-qr { width: 80px; height: 80px; border-radius: 12px; border: 1px dashed rgba(196,169,98,0.4); display: flex; align-items: center; justify-content: center; font-size: 12px; color: rgba(248,245,240,0.4); margin-top: 16px; text-align: center; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; font-size: 13px; color: rgba(248,245,240,0.5); }
.footer-bottom-links { display: flex; gap: 20px; align-items: center; }
.footer-bottom-links span { cursor: default; }

/* Float CTA */
.float-cta {
  position: fixed; right: 24px; bottom: 32px; z-index: 999;
  width: 56px; height: 56px; border-radius: var(--radius-pill);
  background: var(--color-primary); color: var(--color-accent);
  display: flex; align-items: center; justify-content: center; font-size: 24px;
  box-shadow: 0 8px 24px rgba(47,74,60,0.3);
  transition: var(--transition);
}
.float-cta:hover { transform: translateY(-3px); box-shadow: 0 12px 32px rgba(47,74,60,0.4); }

/* Responsive */
@media (max-width: 1023px) {
  :root { --section-pad: 72px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .main-nav { gap: 0; }
  .nav-link { padding: 8px 10px; font-size: 14px; }
  .split-grid { grid-template-columns: 1fr; gap: 40px; }
  .cta-form input { width: 46%; }
}
@media (max-width: 767px) {
  :root { --section-pad: 60px; --nav-height: 56px; }
  .container { padding-left: 16px; padding-right: 16px; }
  .main-navigation {
    position: fixed; top: 0; right: -320px; width: 288px; height: 100vh;
    background: rgba(248,245,240,0.96);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    padding: 80px 24px 24px; transition: right .3s ease;
    border-radius: 16px 0 0 16px; box-shadow: var(--shadow-hover); z-index: 1100;
  }
  .main-navigation.open { right: 0; }
  .main-nav { flex-direction: column; gap: 8px; }
  .nav-link { padding: 14px 12px; font-size: 16px; }
  .nav-toggle { display: block; }
  .header-actions .btn { display: none; }
  .dropdown-panel { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; width: 100%; background: transparent; border: none; padding: 0 0 0 12px; }
  .cat-hero { min-height: auto; padding-top: calc(var(--nav-height) + 24px); padding-bottom: 40px; }
  .cat-hero h1 { font-size: 32px; }
  .hero-lead { font-size: 16px; }
  .hero-trust { gap: 8px; }
  .hero-trust span { font-size: 13px; padding: 5px 12px; }
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; }
  .stat-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .stat-number { font-size: 32px; }
  .stat-item { padding: 18px 10px; }
  .split-list li { font-size: 14px; }
  .step-card { flex-direction: column; padding: 20px; gap: 12px; }
  .step-num { width: 40px; height: 40px; font-size: 16px; }
  .compliance-table th { font-size: 13px; padding: 12px 14px; }
  .compliance-table td { font-size: 14px; padding: 14px; }
  .section-head h2 { font-size: 26px; }
  .cta-form { flex-direction: column; }
  .cta-form input { width: 100%; max-width: none; }
  .cta-form .btn { width: 100%; }
  .cta-card h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; padding-bottom: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-bottom-links { flex-direction: column; gap: 8px; }
  .float-cta { width: 48px; height: 48px; right: 16px; bottom: 20px; font-size: 20px; }
}