/* roulang page: index */
:root{
  --primary:#0F766E;--primary-dark:#042F2E;--accent:#FF6F4A;--gold:#F5C04A;
  --bg:#FDFBF7;--bg-alt:#F0F7F6;--bg-orange:#FFF1E8;--text:#1F2937;--text-secondary:#6B7280;
  --border:#D1D9D8;--radius:12px;--shadow:0 1px 3px rgba(4,47,46,.08);--shadow-hover:0 12px 24px rgba(4,47,46,.12);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.7;font-size:15px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit;transition:color .2s}
button{font-family:inherit;cursor:pointer}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
@media(max-width:640px){.container{padding:0 16px}}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;font-size:15px;border-radius:8px;padding:0 24px;height:40px;transition:all .25s ease;white-space:nowrap;border:2px solid transparent}
.btn-lg{height:48px;padding:0 32px;font-size:16px}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:#0d5f59;box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#ff5a30;box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.btn-accent:active{transform:translateY(0)}
.btn-outline{background:#fff;border-color:var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--bg-alt);box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(0)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.1);transform:translateY(-2px)}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

/* 导航 */
.nav-wrap{position:sticky;top:0;z-index:50;background:rgba(253,251,247,.92);backdrop-filter:blur(8px);border-bottom:1px solid #e5e7eb}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px}
.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:var(--primary-dark)}
.logo-icon{width:36px;height:36px;background:linear-gradient(135deg,var(--primary),#134E4A);border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;position:relative;overflow:hidden}
.logo-icon::after{content:"";position:absolute;bottom:-6px;left:-4px;width:22px;height:14px;border:2px solid rgba(255,255,255,.6);border-radius:50%;transform:rotate(18deg)}
.nav-links{display:flex;align-items:center;gap:8px;background:#F1F5F5;padding:4px;border-radius:999px}
.nav-link{display:inline-flex;align-items:center;gap:6px;padding:8px 20px;border-radius:999px;font-size:14px;font-weight:500;color:#374151;transition:all .2s}
.nav-link:hover{background:rgba(15,118,110,.08);color:var(--primary)}
.nav-link.active{background:var(--primary);color:#fff;box-shadow:0 2px 8px rgba(15,118,110,.3)}
.nav-cta{display:inline-flex;align-items:center;gap:6px;background:var(--primary);color:#fff;height:40px;padding:0 20px;border-radius:8px;font-size:14px;font-weight:600;transition:all .25s}
.nav-cta:hover{background:#0d5f59;box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.nav-cta:active{transform:translateY(0)}
.mobile-nav{display:none}
@media(max-width:1024px){
  .nav-links{display:none}
  .mobile-nav{display:flex;overflow-x:auto;gap:8px;padding:10px 16px;background:var(--bg);border-top:1px solid #e5e7eb;scrollbar-width:none}
  .mobile-nav::-webkit-scrollbar{display:none}
  .mobile-nav .nav-link{white-space:nowrap;flex-shrink:0;background:#F1F5F5}
  .mobile-nav .nav-link.active{background:var(--primary);color:#fff}
  .nav-cta{height:36px;padding:0 14px;font-size:13px}
}
@media(max-width:640px){.nav-inner{height:60px}.logo{font-size:18px}.logo-icon{width:32px;height:32px;font-size:15px}}

/* 倒计时条 */
.countdown-bar{background:var(--bg-orange);border-bottom:1px solid rgba(245,192,74,.3)}
.countdown-inner{display:flex;align-items:center;justify-content:space-between;height:44px;font-size:14px}
.countdown-left{display:flex;align-items:center;gap:10px;font-weight:500;color:#7c3a2e}
.countdown-digits{font-family:"DIN Alternate","Bahnschrift",system-ui;color:var(--accent);font-weight:700;font-size:15px}
.countdown-digits span{font-size:12px;color:var(--text-secondary);font-weight:400;margin:0 2px}
.countdown-link{color:var(--primary);font-weight:600;font-size:13px;display:inline-flex;align-items:center;gap:4px}
@media(max-width:640px){.countdown-inner{justify-content:center}.countdown-link{display:none}}

/* Hero */
.hero{position:relative;overflow:hidden;background:linear-gradient(135deg,rgba(15,118,110,.12),rgba(19,78,74,.06) 60%,rgba(253,251,247,0));padding:80px 0 72px}
.hero-bg{position:absolute;top:0;left:0;width:100%;height:100%;background-image:radial-gradient(circle at 80% 20%,rgba(15,118,110,.08) 0,transparent 50%),radial-gradient(circle at 20% 80%,rgba(255,111,74,.06) 0,transparent 40%);pointer-events:none}
.hero-wave{position:absolute;bottom:0;left:0;width:200%;height:60px;background:var(--bg);border-radius:50% 50% 0 0;pointer-events:none;opacity:.4}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(1.75rem,3.5vw,2.75rem);font-weight:700;line-height:1.3;color:var(--primary-dark);margin-bottom:16px}
.hero h1 em{color:var(--primary);font-style:normal}
.hero-sub{font-size:16px;color:var(--text-secondary);max-width:460px;margin-bottom:28px;line-height:1.7}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:28px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.tag-chip{display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid var(--border);border-radius:999px;padding:6px 14px;font-size:13px;font-weight:500;color:#374151;box-shadow:0 1px 2px rgba(4,47,46,.05)}
.tag-chip i{color:var(--primary);font-size:12px}
.hero-image{position:relative;border-radius:16px;overflow:hidden;box-shadow:0 20px 40px rgba(4,47,46,.15)}
.hero-image img{width:100%;height:360px;object-fit:cover}
.hero-image::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 50%,rgba(4,47,46,.15));border-radius:16px}
.hero-badge{position:absolute;top:16px;right:16px;background:var(--gold);color:#422006;font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px;box-shadow:0 4px 12px rgba(245,192,74,.4);z-index:2}
@media(max-width:1024px){.hero-grid{grid-template-columns:1fr;gap:40px;text-align:center}.hero-sub{margin-left:auto;margin-right:auto}.hero-actions{justify-content:center}.hero-tags{justify-content:center}}
@media(max-width:640px){.hero{padding:48px 0 56px}.hero-image img{height:240px}}

/* 区块 */
.section{padding:80px 0}
.section-alt{background:var(--bg-alt)}
.section-head{margin-bottom:48px}
.section-head h2{font-size:clamp(1.375rem,2.2vw,1.875rem);font-weight:700;color:var(--primary-dark);position:relative;padding-left:16px;line-height:1.3}
.section-head h2::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:4px;border-radius:4px;background:var(--primary)}
.section-head p{margin-top:12px;color:var(--text-secondary);font-size:15px;max-width:640px}
.section-head.center{text-align:center}
.section-head.center h2{display:inline-block;padding-left:0;padding-bottom:12px}
.section-head.center h2::before{left:50%;top:auto;right:auto;bottom:0;transform:translateX(-50%);width:40px;height:4px;bottom:0}
.section-head.center p{margin-left:auto;margin-right:auto}
@media(max-width:640px){.section{padding:56px 0}}

/* 图墙卡片 */
.cards-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.cards-grid.cols-2{grid-template-columns:repeat(2,1fr)}
.cards-grid.cols-3{grid-template-columns:repeat(3,1fr)}
.feature-card{background:#fff;border-radius:16px;overflow:hidden;box-shadow:var(--shadow);transition:all .3s ease;border:1px solid rgba(4,47,46,.05);display:flex;flex-direction:column}
.feature-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-6px);border-color:rgba(15,118,110,.25)}
.feature-card-img{position:relative;height:170px;overflow:hidden}
.feature-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.feature-card:hover .feature-card-img img{transform:scale(1.05)}
.feature-card-badge{position:absolute;top:12px;left:12px;background:var(--gold);color:#422006;font-size:12px;font-weight:700;padding:4px 10px;border-radius:999px;z-index:2;box-shadow:0 2px 8px rgba(0,0,0,.1)}
.feature-card-body{padding:16px 18px 20px;display:flex;flex-direction:column;flex:1}
.feature-card-body h3{font-size:15px;font-weight:600;color:var(--text);margin-bottom:6px;line-height:1.4;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.feature-card-body p{font-size:13px;color:var(--text-secondary);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
@media(max-width:1024px){.cards-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:768px){.cards-grid{grid-template-columns:repeat(2,1fr)}.cards-grid.cols-2,.cards-grid.cols-3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.cards-grid,.cards-grid.cols-2,.cards-grid.cols-3{grid-template-columns:1fr}.feature-card-img{height:200px}}

/* 登录指南 */
.guide-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.guide-step{background:#fff;border-radius:16px;padding:32px 28px;box-shadow:var(--shadow);border:1px solid rgba(4,47,46,.05);position:relative;transition:all .3s}
.guide-step:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.guide-step-num{position:absolute;top:-14px;left:24px;width:36px;height:36px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;box-shadow:0 4px 12px rgba(15,118,110,.3)}
.guide-step-icon{width:48px;height:48px;border-radius:12px;background:var(--bg-alt);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px}
.guide-step h3{font-size:16px;font-weight:600;color:var(--text);margin-bottom:6px}
.guide-step p{font-size:13px;color:var(--text-secondary);line-height:1.6}
@media(max-width:768px){.guide-steps{grid-template-columns:1fr;gap:24px}}

/* 资讯列表 */
.news-list{display:flex;flex-direction:column;gap:12px;max-width:900px;margin:0 auto}
.news-card{display:flex;align-items:center;justify-content:space-between;gap:20px;background:#fff;border-radius:14px;padding:16px 20px;box-shadow:var(--shadow);border:1px solid rgba(4,47,46,.04);transition:all .25s}
.news-card:hover{background:rgba(15,118,110,.04);box-shadow:var(--shadow-hover);transform:translateX(4px)}
.news-card-left{display:flex;align-items:center;gap:16px;min-width:0;flex:1}
.news-cat{flex-shrink:0;background:rgba(15,118,110,.1);color:var(--primary);font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;min-width:56px;text-align:center}
.news-info{min-width:0}
.news-title{font-size:15px;font-weight:600;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:2px}
.news-title:hover{color:var(--primary)}
.news-summary{font-size:13px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:600px}
.news-date{flex-shrink:0;font-size:13px;color:var(--text-secondary);font-family:"DIN Alternate",system-ui}
@media(max-width:640px){.news-card{flex-direction:column;align-items:flex-start;gap:8px}.news-summary{max-width:100%}.news-date{align-self:flex-end}}

/* 空状态 */
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:64px 24px;text-align:center}
.empty-icon{width:64px;height:64px;border-radius:50%;background:var(--bg-alt);display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:24px;margin-bottom:16px}
.empty-state p{font-size:14px;color:var(--text-secondary)}

/* 数据统计 */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-card{background:#fff;border-radius:16px;padding:32px 20px;text-align:center;box-shadow:var(--shadow);border:1px solid rgba(4,47,46,.04);transition:all .3s}
.stat-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.stat-num{font-family:"DIN Alternate","Bahnschrift",system-ui;font-size:36px;font-weight:700;color:var(--primary);line-height:1.2}
.stat-label{font-size:13px;color:var(--text-secondary);margin-top:8px}
.stat-icon{width:44px;height:44px;border-radius:12px;background:var(--bg-orange);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:20px;margin:0 auto 12px}
@media(max-width:768px){.stats-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.stats-grid{grid-template-columns:1fr 1fr;gap:14px}.stat-num{font-size:28px}}

/* 深色CTA */
.cta-dark{background:var(--primary-dark);position:relative;overflow:hidden;padding:80px 0}
.cta-dark::before{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:linear-gradient(90deg,var(--gold),transparent)}
.cta-dark::after{content:"";position:absolute;right:-80px;bottom:-80px;width:280px;height:280px;border-radius:50%;border:3px solid rgba(255,255,255,.05);pointer-events:none}
.cta-dark-inner{position:relative;text-align:center;max-width:720px;margin:0 auto}
.cta-dark h2{color:#fff;font-size:clamp(1.5rem,2.5vw,2rem);font-weight:700;margin-bottom:16px}
.cta-dark p{color:rgba(255,255,255,.7);font-size:15px;margin-bottom:32px;line-height:1.7}
.cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}

/* FAQ */
.faq-wrap{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:14px;border:1px solid rgba(4,47,46,.06);overflow:hidden;margin-bottom:14px;box-shadow:var(--shadow);transition:box-shadow .3s}
.faq-item.open{box-shadow:var(--shadow-hover)}
.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;padding:18px 24px;background:none;border:none;font-size:16px;font-weight:600;color:var(--text);text-align:left;transition:color .2s}
.faq-question:hover{color:var(--primary)}
.faq-icon{width:28px;height:28px;border-radius:50%;background:var(--bg-alt);display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--primary);transition:transform .3s ease,background .3s}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease;padding:0 24px}
.faq-item.open .faq-answer{max-height:300px;padding:0 24px 18px}
.faq-answer-inner{background:var(--bg-alt);border-radius:8px;padding:16px;font-size:14px;color:var(--text-secondary);line-height:1.7;border-left:3px solid var(--primary)}
.faq-footer{text-align:center;margin-top:28px;font-size:14px;color:var(--text-secondary)}
.faq-footer a{color:var(--primary);font-weight:600}

/* 页脚 */
.footer{background:var(--primary-dark);color:rgba(255,255,255,.7);padding:64px 0 0;position:relative}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:#fff;margin-bottom:12px}
.footer-logo .logo-icon{background:rgba(255,255,255,.12)}
.footer-brand p{font-size:13px;line-height:1.7;max-width:300px}
.footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;position:relative;padding-bottom:10px}
.footer h4::after{content:"";position:absolute;bottom:0;left:0;width:24px;height:2px;background:var(--accent)}
.footer ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer ul li a{font-size:14px;color:rgba(255,255,255,.65);transition:color .2s,padding-left .2s}
.footer ul li a:hover{color:#fff;padding-left:4px}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:rgba(255,255,255,.65)}
.footer-contact i{margin-top:4px;color:var(--accent);width:16px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5)}
@media(max-width:1024px){.footer-top{grid-template-columns:1fr 1fr;gap:32px}}
@media(max-width:640px){.footer-top{grid-template-columns:1fr;gap:28px}.footer-bottom{flex-direction:column;gap:8px;text-align:center}}

/* 波浪装饰 */
.wave-divider{height:40px;background:linear-gradient(to right,transparent,rgba(15,118,110,.06),transparent);border-radius:50% 50% 0 0;margin-bottom:-32px}
/* 通用动画 */
@keyframes fadeUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}
.animate-fade-up{animation:fadeUp .6s ease both}

/* roulang page: article */
:root {
  --primary: #0F766E;
  --primary-dark: #134E4A;
  --primary-deep: #042F2E;
  --accent: #FF6F4A;
  --gold: #F5C04A;
  --bg: #FDFBF7;
  --bg-soft: #F0F7F6;
  --bg-orange: #FFF1E8;
  --text: #1E293B;
  --text-weak: #6B7280;
  --border: #D1D9D8;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(4,47,46,.08);
  --shadow-lg: 0 12px 24px rgba(4,47,46,.12);
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.7; font-size: 15px; -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; transition: color .2s ease; }
img { max-width: 100%; display: block; }
button { font-family: var(--font); cursor: pointer; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
@media (max-width: 640px) { .container { padding: 0 16px; } }

/* ===== Header / Nav ===== */
.site-header { background: #fff; border-bottom: 4px solid var(--primary); position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 12px rgba(4,47,46,.06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon { width: 38px; height: 38px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 17px; box-shadow: 0 4px 10px rgba(15,118,110,.3); }
.logo-text { font-size: 21px; font-weight: 700; color: var(--primary-deep); letter-spacing: 1px; }
.nav-links { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; justify-content: center; }
.nav-link { display: inline-flex; align-items: center; gap: 5px; padding: 8px 18px; border-radius: 999px; font-size: 14px; font-weight: 500; color: #334155; background: #F1F5F5; transition: all .2s ease; white-space: nowrap; }
.nav-link i { font-size: 12px; }
.nav-link:hover { background: rgba(15,118,110,.12); color: var(--primary); }
.nav-link.active { background: var(--primary); color: #fff; box-shadow: 0 3px 10px rgba(15,118,110,.3); }
.header-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.btn-login { background: var(--primary); color: #fff; border: none; border-radius: var(--radius-sm); padding: 9px 20px; font-size: 14px; font-weight: 600; display: inline-flex; align-items: center; gap: 6px; transition: all .2s ease; box-shadow: 0 2px 8px rgba(15,118,110,.25); }
.btn-login:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(15,118,110,.32); }
.btn-login:active { transform: translateY(0); box-shadow: 0 2px 6px rgba(15,118,110,.2); }
.btn-login:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.mobile-toggle { display: none; background: none; border: none; font-size: 22px; color: var(--primary-deep); padding: 4px 8px; }

@media (max-width: 768px) {
  .header-inner { flex-wrap: wrap; height: auto; padding: 12px 0; row-gap: 8px; }
  .nav-links { order: 3; width: 100%; justify-content: flex-start; overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; padding-bottom: 2px; }
  .nav-links::-webkit-scrollbar { display: none; }
  .nav-link { flex-shrink: 0; padding: 6px 14px; font-size: 13px; }
  .mobile-toggle { display: block; }
  .header-actions .btn-login span { display: none; }
  .btn-login { padding: 8px 12px; }
}

/* ===== Breadcrumb ===== */
.breadcrumb-wrap { background: var(--bg-soft); border-bottom: 1px solid rgba(209,217,216,.5); padding: 12px 0; }
.breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; font-size: 13px; color: var(--text-weak); }
.breadcrumb a { color: var(--primary); font-weight: 500; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { color: #CBD5D5; }
.breadcrumb .current { color: var(--text); font-weight: 600; max-width: 300px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ===== Article Page ===== */
.article-page { padding: 48px 0 72px; }
.article-container { max-width: 760px; margin: 0 auto; }

.article-header { margin-bottom: 36px; }
.article-header h1 { font-size: clamp(1.6rem, 3vw, 2.15rem); line-height: 1.35; font-weight: 700; color: var(--primary-deep); margin-bottom: 16px; }
.article-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 16px; font-size: 13px; color: var(--text-weak); }
.article-meta .chip { background: rgba(15,118,110,.1); color: var(--primary); padding: 4px 14px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.article-meta span { display: inline-flex; align-items: center; gap: 5px; }
.article-meta i { font-size: 13px; }

.article-cover { margin-bottom: 32px; }
.article-cover img { border-radius: 16px; box-shadow: var(--shadow-lg); width: 100%; }

/* ===== Article Content ===== */
.article-content { font-size: 16px; line-height: 1.8; color: #334155; }
.article-content p { margin-bottom: 1.2em; }
.article-content h2 { font-size: 1.45rem; font-weight: 700; color: var(--primary-deep); margin: 40px 0 16px; padding-left: 14px; border-left: 4px solid var(--primary); }
.article-content h3 { font-size: 1.2rem; font-weight: 600; color: var(--text); margin: 32px 0 14px; }
.article-content h4 { font-size: 1.05rem; font-weight: 600; color: var(--text); margin: 24px 0 10px; }
.article-content ul, .article-content ol { margin: 0 0 1.2em 1.4em; }
.article-content li { margin-bottom: .5em; }
.article-content a { color: var(--primary); border-bottom: 1px solid rgba(15,118,110,.3); }
.article-content a:hover { color: var(--accent); border-color: var(--accent); }
.article-content blockquote { border-left: 4px solid var(--primary); background: var(--bg-soft); border-radius: var(--radius-sm); padding: 16px 20px; margin: 24px 0; color: #445566; font-style: normal; }
.article-content blockquote p { margin-bottom: 0; }
.article-content img { border-radius: var(--radius-sm); border: 1px solid var(--bg-soft); margin: 20px 0; }
.article-content table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px; }
.article-content table th, .article-content table td { border: 1px solid var(--border); padding: 10px 12px; text-align: left; }
.article-content table th { background: var(--bg-soft); font-weight: 600; }
.article-content code { background: var(--bg-soft); padding: 2px 6px; border-radius: 4px; font-size: 14px; font-family: "DIN Alternate", "Bahnschrift", system-ui; }
.article-content pre { background: var(--primary-deep); color: #e2e8f0; padding: 18px; border-radius: var(--radius-sm); overflow-x: auto; margin: 20px 0; font-size: 14px; }

/* Not Found */
.not-found { text-align: center; padding: 64px 24px; background: var(--bg-soft); border-radius: 16px; }
.not-found i { font-size: 48px; color: var(--primary); opacity: .6; margin-bottom: 16px; }
.not-found h2 { font-size: 1.5rem; color: var(--text); margin-bottom: 8px; }
.not-found p { color: var(--text-weak); margin-bottom: 24px; }

/* ===== Related Cards ===== */
.related-section { padding: 64px 0; background: var(--bg-soft); }
.section-title { font-size: clamp(1.375rem, 2.2vw, 1.875rem); font-weight: 700; color: var(--primary-deep); margin-bottom: 32px; padding-left: 14px; border-left: 4px solid var(--primary); }
.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card { background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: all .3s ease; border: 1px solid rgba(209,217,216,.4); }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(15,118,110,.4); }
.card-img { position: relative; overflow: hidden; aspect-ratio: 16/10; }
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.card:hover .card-img img { transform: scale(1.03); }
.card-badge { position: absolute; top: 12px; left: 12px; background: var(--gold); color: #3B2E00; font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 999px; box-shadow: 0 2px 6px rgba(0,0,0,.15); }
.card-body { padding: 18px; }
.card-body h3 { font-size: 15px; font-weight: 600; color: var(--text); line-height: 1.4; margin-bottom: 8px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.card-body p { font-size: 13px; color: var(--text-weak); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card-footer { display: flex; align-items: center; justify-content: space-between; padding: 12px 18px; border-top: 1px solid rgba(209,217,216,.4); font-size: 12px; color: var(--text-weak); }
.card-footer .read-more { color: var(--primary); font-weight: 600; font-size: 13px; display: inline-flex; align-items: center; gap: 4px; }
.card-footer .read-more:hover { color: var(--accent); }

@media (max-width: 900px) { .cards-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 580px) { .cards-grid { grid-template-columns: 1fr; } }

/* ===== CTA Section ===== */
.cta-section { background: var(--primary-deep); position: relative; overflow: hidden; padding: 72px 0; }
.cta-section::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--gold); }
.cta-section::after { content: ''; position: absolute; right: -60px; bottom: -60px; width: 220px; height: 220px; border-radius: 50%; background: rgba(15,118,110,.25); }
.cta-inner { text-align: center; position: relative; z-index: 2; }
.cta-inner h2 { color: #fff; font-size: clamp(1.4rem, 2.5vw, 2rem); font-weight: 700; margin-bottom: 14px; }
.cta-inner p { color: rgba(255,255,255,.85); max-width: 560px; margin: 0 auto 32px; font-size: 15px; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-accent { background: var(--accent); color: #fff; border: none; border-radius: var(--radius-sm); padding: 14px 36px; font-size: 15px; font-weight: 700; transition: all .25s ease; box-shadow: 0 4px 16px rgba(255,111,74,.35); display: inline-flex; align-items: center; gap: 8px; }
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(255,111,74,.45); filter: brightness(1.05); }
.btn-accent:active { transform: translateY(0); }
.btn-accent:focus-visible { outline: 2px solid #fff; outline-offset: 3px; }
.btn-outline-light { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,.8); border-radius: var(--radius-sm); padding: 12px 32px; font-size: 15px; font-weight: 600; transition: all .25s ease; }
.btn-outline-light:hover { background: rgba(255,255,255,.1); border-color: #fff; transform: translateY(-2px); }
.btn-outline-light:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }

/* ===== FAQ ===== */
.faq-section { padding: 72px 0; background: var(--bg); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid rgba(209,217,216,.65); border-radius: var(--radius); margin-bottom: 14px; overflow: hidden; transition: box-shadow .25s ease; }
.faq-item:hover { box-shadow: var(--shadow); }
.faq-item.open { border-color: rgba(15,118,110,.4); box-shadow: var(--shadow); }
.faq-question { display: flex; align-items: center; justify-content: space-between; padding: 18px 22px; cursor: pointer; font-size: 16px; font-weight: 600; color: var(--text); transition: color .2s ease; }
.faq-item.open .faq-question { color: var(--primary); }
.faq-question .icon { width: 28px; height: 28px; border-radius: 50%; background: var(--bg-soft); display: flex; align-items: center; justify-content: center; font-size: 18px; color: var(--primary); transition: all .3s ease; flex-shrink: 0; }
.faq-item.open .faq-question .icon { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-answer { display: none; padding: 0 22px 18px; font-size: 14px; color: var(--text-weak); line-height: 1.7; background: transparent; }
.faq-item.open .faq-answer { display: block; animation: fadeIn .25s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: translateY(0); } }
.faq-footer { text-align: center; margin-top: 28px; font-size: 14px; color: var(--text-weak); }
.faq-footer a { color: var(--primary); font-weight: 600; }
.faq-footer a:hover { color: var(--accent); }

/* ===== Buttons (reusable) ===== */
.btn { border-radius: var(--radius-sm); font-weight: 600; transition: all .25s ease; display: inline-flex; align-items: center; gap: 6px; border: none; }
.btn-primary { background: var(--primary); color: #fff; padding: 12px 32px; font-size: 15px; box-shadow: 0 3px 12px rgba(15,118,110,.25); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(15,118,110,.3); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn-outline { background: #fff; border: 2px solid var(--primary); color: var(--primary); padding: 10px 28px; font-size: 15px; }
.btn-outline:hover { background: rgba(15,118,110,.06); transform: translateY(-2px); }
.btn-outline:active { transform: translateY(0); }
.btn-outline:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ===== Feature Strip ===== */
.feature-strip { background: var(--bg-orange); padding: 14px 0; border-bottom: 1px solid rgba(255,175,130,.3); }
.feature-strip-inner { display: flex; align-items: center; justify-content: center; gap: 28px; flex-wrap: wrap; font-size: 14px; color: #7B3F1F; }
.feature-strip-inner span { display: inline-flex; align-items: center; gap: 6px; }
.feature-strip-inner i { color: var(--accent); }

/* ===== Footer ===== */
.footer { background: var(--primary-deep); color: rgba(255,255,255,.75); padding: 60px 0 0; }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 40px; padding-bottom: 44px; }
.footer-brand .footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-logo .logo-icon { background: var(--accent); box-shadow: 0 4px 12px rgba(255,111,74,.3); }
.footer-logo span { color: #fff; font-size: 20px; font-weight: 700; }
.footer-brand p { font-size: 13px; line-height: 1.8; color: rgba(255,255,255,.6); max-width: 320px; }
.footer h4 { color: #fff; font-size: 14px; font-weight: 600; margin-bottom: 18px; letter-spacing: .5px; }
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 12px; font-size: 13px; }
.footer ul li a:hover { color: var(--gold); }
.footer-contact li { display: flex; align-items: flex-start; gap: 8px; color: rgba(255,255,255,.6); }
.footer-contact i { color: var(--accent); font-size: 14px; margin-top: 3px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); padding: 20px 0; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 12px; color: rgba(255,255,255,.5); }
.footer-bottom a { color: rgba(255,255,255,.5); }
.footer-bottom a:hover { color: var(--gold); }

@media (max-width: 900px) { .footer-top { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-top { grid-template-columns: 1fr; gap: 28px; } .footer-bottom { justify-content: center; text-align: center; } }

/* ===== Tag chips ===== */
.chip-tag { display: inline-block; background: rgba(15,118,110,.1); color: var(--primary); padding: 3px 12px; border-radius: 999px; font-size: 12px; font-weight: 600; }

/* Focus visible global */
a:focus-visible, button:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

/* roulang page: category1 */
:root {
            --primary: #0F766E;
            --primary-dark: #042F2E;
            --primary-deep: #134E4A;
            --accent: #FF6F4A;
            --gold: #F5C04A;
            --bg-warm: #FDFBF7;
            --bg-mint: #F0F7F6;
            --bg-orange: #FFF1E8;
            --text-main: #1E293B;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-base: 0 1px 3px rgba(4, 47, 46, .08);
            --shadow-hover: 0 12px 24px rgba(4, 47, 46, .12);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--bg-warm);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        ul {
            list-style: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(253, 251, 247, .96);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(15, 118, 110, .1);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            min-height: 68px;
            padding-top: 10px;
            padding-bottom: 10px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--primary-dark);
            white-space: nowrap;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), var(--primary-deep));
            color: #fff;
            border-radius: 10px;
            font-size: 17px;
            box-shadow: 0 4px 10px rgba(15, 118, 110, .25);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .nav-links::-webkit-scrollbar {
            display: none;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: #475569;
            background: #F1F5F5;
            white-space: nowrap;
            transition: all .2s ease;
        }
        .nav-link:hover {
            background: #CCFBF1;
            color: var(--primary);
        }
        .nav-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(15, 118, 110, .3);
        }
        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: all .2s ease;
        }
        .btn-header:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 18px rgba(15, 118, 110, .28);
        }
        .btn-header:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-header:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 0 24px;
            height: 48px;
            border: 2px solid transparent;
            cursor: pointer;
            transition: all .25s ease;
        }
        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }
        .btn-coral {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
            box-shadow: 0 6px 16px rgba(255, 111, 74, .3);
        }
        .btn-coral:hover {
            background: #ff805f;
            border-color: #ff805f;
            transform: translateY(-2px);
            box-shadow: 0 10px 22px rgba(255, 111, 74, .38);
        }
        .btn-coral:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(255, 111, 74, .25);
        }
        .btn-outline {
            background: #fff;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--bg-mint);
            transform: translateY(-2px);
            box-shadow: 0 8px 18px rgba(15, 118, 110, .12);
        }
        .btn-outline:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-white-outline {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, .8);
        }
        .btn-white-outline:hover {
            background: rgba(255, 255, 255, .1);
            border-color: #fff;
            transform: translateY(-2px);
        }
        .btn-white-outline:active {
            transform: translateY(0);
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, #E8F4F2 0%, #F6FCFB 50%, #FFF8F3 100%);
            padding: 72px 0 64px;
            overflow: hidden;
        }
        .page-hero::before {
            content: "";
            position: absolute;
            top: -40px;
            right: -60px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(15, 118, 110, .08) 0%, transparent 70%);
            pointer-events: none;
        }
        .page-hero::after {
            content: "";
            position: absolute;
            bottom: -30px;
            left: -40px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 111, 74, .07) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-wrap {
            display: grid;
            grid-template-columns: 1.1fr .9fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #fff;
            border: 1px solid rgba(15, 118, 110, .16);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
            box-shadow: 0 2px 8px rgba(4, 47, 46, .06);
        }
        .page-hero h1 {
            font-size: clamp(1.75rem, 3.5vw, 2.75rem);
            font-weight: 700;
            color: var(--primary-dark);
            line-height: 1.2;
            margin: 18px 0 14px;
            letter-spacing: -0.01em;
        }
        .hero-desc {
            font-size: 16px;
            color: #475569;
            max-width: 520px;
            margin-bottom: 28px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 28px;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(15, 118, 110, .08);
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
            padding: 5px 14px;
            border-radius: 999px;
        }
        .chip i {
            font-size: 11px;
        }
        .hero-visual {
            position: relative;
        }
        .hero-visual img {
            border-radius: 16px;
            box-shadow: var(--shadow-hover);
            width: 100%;
            height: 300px;
            object-fit: cover;
        }
        .hero-float {
            position: absolute;
            bottom: -16px;
            left: -18px;
            background: #fff;
            border-radius: 12px;
            box-shadow: var(--shadow-hover);
            padding: 14px 18px;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-main);
        }
        .hero-float .icon-wrap {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg-mint);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }

        /* ===== Section ===== */
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: var(--bg-mint);
        }
        .section-title {
            font-size: clamp(1.375rem, 2.2vw, 1.875rem);
            font-weight: 700;
            color: var(--primary-dark);
            border-left: 4px solid var(--primary);
            padding-left: 16px;
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .section-sub {
            font-size: 15px;
            color: var(--text-muted);
            margin-bottom: 40px;
            max-width: 640px;
        }

        /* ===== Feature Cards ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-base);
            padding: 28px 24px;
            border: 1px solid rgba(15, 118, 110, .06);
            position: relative;
            transition: all .25s ease;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(15, 118, 110, .18);
        }
        .feature-card .icon-box {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-deep));
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 18px;
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .rec-tag {
            position: absolute;
            top: 16px;
            right: 16px;
            background: var(--gold);
            color: #4A3B00;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 999px;
        }

        /* ===== Steps ===== */
        .steps-wrap {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .step-item {
            position: relative;
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-base);
            padding: 28px 20px 24px;
            text-align: center;
            border-top: 3px solid var(--primary);
            transition: all .25s ease;
        }
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .step-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--bg-orange);
            color: var(--accent);
            font-size: 17px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 14px;
            font-family: "DIN Alternate", "Bahnschrift", system-ui;
        }
        .step-item h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== Access Methods ===== */
        .access-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .access-item {
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-base);
            padding: 24px 22px;
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: all .25s ease;
            border: 1px solid rgba(15, 118, 110, .05);
        }
        .access-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(15, 118, 110, .16);
        }
        .access-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--bg-mint);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
        }
        .access-item h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 6px;
        }
        .access-item p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            margin-bottom: 12px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            background: #fff;
            overflow: hidden;
            transition: all .2s ease;
        }
        .faq-item.open {
            border-color: rgba(15, 118, 110, .2);
            box-shadow: var(--shadow-base);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary-dark);
            cursor: pointer;
            background: #fff;
            transition: background .2s;
        }
        .faq-question:hover {
            background: var(--bg-mint);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--bg-mint);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: transform .2s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-answer {
            display: none;
            padding: 4px 22px 20px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: var(--primary-dark);
            padding: 68px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--gold), var(--accent), var(--gold));
        }
        .cta-inner {
            text-align: center;
            position: relative;
            z-index: 2;
        }
        .cta-inner h2 {
            color: #fff;
            font-size: clamp(1.375rem, 2.4vw, 2rem);
            font-weight: 700;
            margin-bottom: 14px;
        }
        .cta-inner p {
            color: rgba(255, 255, 255, .85);
            font-size: 15px;
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 14px;
        }
        .cta-actions .btn-coral {
            box-shadow: 0 8px 24px rgba(255, 111, 74, .35);
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, .85);
            padding: 64px 0 0;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, .1);
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, .7);
            max-width: 320px;
        }
        .footer h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer ul a {
            color: rgba(255, 255, 255, .7);
            font-size: 14px;
            transition: color .2s;
        }
        .footer ul a:hover {
            color: var(--gold);
        }
        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, .7);
            line-height: 1.6;
        }
        .footer-contact i {
            margin-top: 4px;
            color: var(--gold);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding: 24px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, .55);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-wrap {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .hero-float {
                left: 12px;
                bottom: -14px;
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-wrap {
                grid-template-columns: repeat(2, 1fr);
            }
            .access-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-top {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .header-inner {
                flex-wrap: wrap;
                min-height: 0;
                padding-top: 14px;
                padding-bottom: 12px;
            }
            .logo {
                font-size: 18px;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }
            .btn-header {
                padding: 7px 14px;
                font-size: 13px;
            }
            .nav-links {
                order: 3;
                width: 100%;
                padding-top: 8px;
                justify-content: flex-start;
            }
            .page-hero {
                padding: 48px 0 56px;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .section {
                padding: 56px 0;
            }
        }
        @media (max-width: 640px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .steps-wrap {
                grid-template-columns: 1fr;
            }
            .access-grid {
                grid-template-columns: 1fr;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .hero-visual img {
                height: 220px;
            }
            .hero-actions {
                flex-direction: column;
            }
        }

/* roulang page: category2 */
:root {
      --primary: #0F766E;
      --primary-dark: #042F2E;
      --accent: #FF6F4A;
      --gold: #F5C04A;
      --bg: #FDFBF7;
      --bg-alt: #F0F7F6;
      --text: #1F2937;
      --text-muted: #6B7280;
      --border: #D1D9D8;
      --radius: 16px;
      --shadow-card: 0 1px 3px rgba(4,47,46,.08);
      --shadow-hover: 0 12px 24px rgba(4,47,46,.12);
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
      color: var(--text);
      background: var(--bg);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 16px;
      padding-right: 16px;
    }

    @media (min-width: 768px) {
      .container {
        padding-left: 24px;
        padding-right: 24px;
      }
    }

    /* 顶部导航 */
    .site-header {
      background: #ffffff;
      border-bottom: 1px solid #E5EDEB;
      position: sticky;
      top: 0;
      z-index: 50;
      box-shadow: 0 1px 4px rgba(4,47,46,.04);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 64px;
      gap: 20px;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      text-decoration: none;
      font-weight: 700;
      font-size: 20px;
      color: var(--primary-dark);
      flex-shrink: 0;
    }

    .logo-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, #0F766E, #134E4A);
      border-radius: 10px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 16px;
      box-shadow: 0 2px 8px rgba(15,118,110,.28);
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 4px;
      background: #F1F5F5;
      padding: 4px;
      border-radius: 999px;
      flex: 0 1 auto;
      overflow-x: auto;
      scrollbar-width: none;
    }

    .nav-links::-webkit-scrollbar {
      display: none;
    }

    .nav-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 7px 18px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 500;
      color: #374151;
      text-decoration: none;
      white-space: nowrap;
      transition: all .2s ease;
    }

    .nav-link:hover {
      background: #D7E8E5;
      color: var(--primary);
    }

    .nav-link.active {
      background: var(--primary);
      color: #ffffff;
      box-shadow: 0 2px 6px rgba(15,118,110,.3);
    }

    .nav-cta {
      flex-shrink: 0;
      padding: 9px 22px;
      font-size: 14px;
      font-weight: 600;
    }

    .nav-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 20px;
      color: var(--primary-dark);
      padding: 8px;
      cursor: pointer;
    }

    @media (max-width: 1023px) {
      .nav-links {
        order: 3;
        width: 100%;
        margin-top: 6px;
        justify-content: flex-start;
        border-radius: 12px;
      }

      .header-inner {
        flex-wrap: wrap;
        height: auto;
        padding-top: 10px;
        padding-bottom: 10px;
        row-gap: 6px;
      }

      .site-header {
        position: relative;
      }

      .nav-cta {
        margin-left: auto;
      }
    }

    @media (max-width: 640px) {
      .logo {
        font-size: 18px;
      }

      .logo-icon {
        width: 32px;
        height: 32px;
        font-size: 14px;
      }

      .nav-link {
        padding: 6px 14px;
        font-size: 13px;
      }

      .nav-cta {
        padding: 7px 14px;
        font-size: 13px;
      }
    }

    /* 按钮 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: 10px;
      font-weight: 600;
      font-size: 15px;
      padding: 12px 28px;
      border: none;
      cursor: pointer;
      text-decoration: none;
      transition: all .2s ease;
      line-height: 1.4;
    }

    .btn:focus-visible,
    a:focus-visible,
    button:focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: 2px;
    }

    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 2px 6px rgba(15,118,110,.25);
    }

    .btn-primary:hover {
      background: #0D6B64;
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(15,118,110,.3);
    }

    .btn-primary:active {
      transform: translateY(0);
      box-shadow: 0 2px 6px rgba(15,118,110,.2);
    }

    .btn-accent {
      background: var(--accent);
      color: #fff;
      box-shadow: 0 2px 8px rgba(255,111,74,.3);
    }

    .btn-accent:hover {
      background: #F05A36;
      transform: translateY(-2px);
      box-shadow: 0 8px 22px rgba(255,111,74,.35);
    }

    .btn-accent:active {
      transform: translateY(0);
    }

    .btn-outline {
      background: transparent;
      color: var(--primary);
      border: 1.5px solid var(--primary);
    }

    .btn-outline:hover {
      background: rgba(15,118,110,.06);
    }

    .btn-white-outline {
      background: transparent;
      color: #fff;
      border: 1.5px solid rgba(255,255,255,.7);
    }

    .btn-white-outline:hover {
      background: rgba(255,255,255,.12);
    }

    .btn-lg {
      height: 48px;
      padding: 0 36px;
      font-size: 16px;
    }

    .btn-sm {
      height: 40px;
      padding: 0 22px;
      font-size: 14px;
    }

    /* Hero */
    .page-hero {
      position: relative;
      background: linear-gradient(135deg, #E6F2F0 0%, #FDFBF7 60%);
      padding: 72px 0 64px;
      overflow: hidden;
    }

    .page-hero::before {
      content: "";
      position: absolute;
      top: -80px;
      right: -60px;
      width: 320px;
      height: 320px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(15,118,110,.08) 0%, transparent 70%);
    }

    .page-hero::after {
      content: "";
      position: absolute;
      bottom: 20px;
      left: -40px;
      width: 240px;
      height: 140px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(255,111,74,.06) 0%, transparent 70%);
    }

    .hero-inner {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #FFF1E8;
      color: #B23E1F;
      font-size: 13px;
      font-weight: 600;
      padding: 6px 16px;
      border-radius: 999px;
      margin-bottom: 18px;
    }

    .hero-title {
      font-size: clamp(1.75rem, 3.5vw, 2.75rem);
      font-weight: 700;
      line-height: 1.25;
      color: var(--primary-dark);
      margin-bottom: 12px;
    }

    .hero-subtitle {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 520px;
      margin-bottom: 28px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    .hero-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 24px;
    }

    .hero-meta span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: #ffffff;
      border: 1px solid #E0E8E6;
      color: var(--text);
      font-size: 13px;
      padding: 5px 14px;
      border-radius: 999px;
    }

    .hero-meta i {
      color: var(--primary);
    }

    .hero-media {
      position: relative;
      border-radius: 20px;
      overflow: hidden;
      box-shadow: var(--shadow-hover);
    }

    .hero-media img {
      width: 100%;
      height: 320px;
      object-fit: cover;
      display: block;
    }

    .hero-media::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(4,47,46,0) 60%, rgba(4,47,46,.45) 100%);
    }

    .hero-media-caption {
      position: absolute;
      bottom: 18px;
      left: 20px;
      z-index: 2;
      color: #fff;
      font-size: 15px;
      font-weight: 600;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    @media (max-width: 768px) {
      .page-hero {
        padding: 48px 0 40px;
      }

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

      .hero-media img {
        height: 220px;
      }
    }

    /* 板块通用 */
    .section {
      padding: 64px 0;
    }

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

    .section-head {
      text-align: center;
      margin-bottom: 44px;
    }

    .section-title {
      font-size: clamp(1.375rem, 2.2vw, 1.875rem);
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 10px;
      position: relative;
      display: inline-block;
      padding-left: 16px;
      border-left: 4px solid var(--primary);
      text-align: left;
    }

    .section-head.center .section-title {
      padding-left: 0;
      border-left: none;
    }

    .section-head.center .section-title::after {
      content: "";
      display: block;
      width: 48px;
      height: 3px;
      background: var(--gold);
      border-radius: 4px;
      margin: 10px auto 0;
    }

    .section-desc {
      max-width: 680px;
      margin: 0 auto;
      color: var(--text-muted);
      font-size: 15px;
    }

    /* 特征卡片 */
    .feature-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .feature-card {
      background: #fff;
      border-radius: var(--radius);
      box-shadow: var(--shadow-card);
      padding: 28px 24px;
      border: 1px solid #EDF2F0;
      transition: all .25s ease;
    }

    .feature-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(15,118,110,.25);
    }

    .feature-icon {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 18px;
    }

    .feature-icon.teal {
      background: #E0F0ED;
      color: var(--primary);
    }

    .feature-icon.orange {
      background: #FFF0E8;
      color: var(--accent);
    }

    .feature-icon.gold {
      background: #FBF3DC;
      color: #B8860B;
    }

    .feature-icon.blue {
      background: #E4EDF7;
      color: #3B6DA0;
    }

    .feature-card h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 8px;
    }

    .feature-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 0;
    }

    .feature-tag {
      display: inline-block;
      background: var(--gold);
      color: #5B3E00;
      font-size: 12px;
      font-weight: 700;
      padding: 2px 10px;
      border-radius: 999px;
      position: absolute;
      top: 14px;
      right: 14px;
    }

    .feature-card {
      position: relative;
    }

    @media (max-width: 1023px) {
      .feature-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 560px) {
      .feature-grid {
        grid-template-columns: 1fr;
      }
    }

    /* 图文交替 */
    .alternating-section {
      display: flex;
      flex-direction: column;
      gap: 72px;
    }

    .alt-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .alt-row.reverse .alt-media {
      order: 2;
    }

    .alt-media {
      border-radius: 20px;
      overflow: hidden;
      box-shadow: var(--shadow-card);
      position: relative;
    }

    .alt-media img {
      width: 100%;
      height: 300px;
      object-fit: cover;
      display: block;
      transition: transform .4s ease;
    }

    .alt-media:hover img {
      transform: scale(1.03);
    }

    .alt-content .alt-kicker {
      display: inline-block;
      background: rgba(15,118,110,.1);
      color: var(--primary);
      font-size: 13px;
      font-weight: 600;
      padding: 4px 14px;
      border-radius: 999px;
      margin-bottom: 12px;
    }

    .alt-content h3 {
      font-size: 22px;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 12px;
      line-height: 1.4;
    }

    .alt-content p {
      color: var(--text-muted);
      font-size: 15px;
      margin-bottom: 16px;
      line-height: 1.75;
    }

    .alt-list {
      list-style: none;
      padding: 0;
      margin: 0 0 20px;
    }

    .alt-list li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      font-size: 14px;
      color: var(--text);
      margin-bottom: 10px;
    }

    .alt-list li i {
      margin-top: 4px;
    }

    @media (max-width: 860px) {
      .alt-row,
      .alt-row.reverse {
        grid-template-columns: 1fr;
        gap: 24px;
      }

      .alt-row.reverse .alt-media {
        order: 0;
      }

      .alt-media img {
        height: 220px;
      }
    }

    /* 流程 */
    .process-wrap {
      max-width: 860px;
      margin: 0 auto;
    }

    .process-step {
      display: flex;
      gap: 24px;
      position: relative;
      padding-bottom: 40px;
    }

    .process-step:last-child {
      padding-bottom: 0;
    }

    .process-step::before {
      content: "";
      position: absolute;
      left: 26px;
      top: 56px;
      bottom: 0;
      width: 2px;
      background: #DBE8E5;
    }

    .process-step:last-child::before {
      display: none;
    }

    .process-num {
      width: 54px;
      height: 54px;
      border-radius: 50%;
      background: var(--primary);
      color: #fff;
      font-size: 18px;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      box-shadow: 0 4px 14px rgba(15,118,110,.3);
      position: relative;
      z-index: 1;
    }

    .process-body {
      padding-top: 4px;
    }

    .process-body h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 6px;
    }

    .process-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 0;
    }

    /* FAQ */
    .faq-wrap {
      max-width: 800px;
      margin: 0 auto;
    }

    .faq-item {
      background: #fff;
      border-radius: 14px;
      box-shadow: var(--shadow-card);
      border: 1px solid #EDF2F0;
      margin-bottom: 14px;
      overflow: hidden;
      transition: box-shadow .2s ease;
    }

    .faq-item.open {
      box-shadow: var(--shadow-hover);
    }

    .faq-question {
      width: 100%;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: none;
      border: none;
      padding: 18px 24px;
      font-size: 15px;
      font-weight: 600;
      color: var(--text);
      cursor: pointer;
      text-align: left;
      transition: background .2s ease;
      font-family: inherit;
    }

    .faq-question:hover {
      background: #F8FBFA;
    }

    .faq-icon {
      width: 26px;
      height: 26px;
      border-radius: 50%;
      background: #F0F7F6;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      flex-shrink: 0;
      transition: transform .2s ease;
    }

    .faq-item.open .faq-icon {
      transform: rotate(45deg);
      background: var(--primary);
      color: #fff;
    }

    .faq-answer {
      display: none;
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
      border-top: 1px solid #F0F5F3;
      margin-top: 0;
      padding-top: 16px;
    }

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

    .faq-bottom-link {
      text-align: center;
      margin-top: 24px;
      font-size: 14px;
      color: var(--text-muted);
    }

    .faq-bottom-link a {
      color: var(--primary);
      font-weight: 600;
      text-decoration: none;
    }

    .faq-bottom-link a:hover {
      text-decoration: underline;
    }

    /* CTA */
    .cta-block {
      background: var(--primary-dark);
      padding: 80px 0;
      position: relative;
      overflow: hidden;
    }

    .cta-block::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: linear-gradient(90deg, var(--gold), transparent);
    }

    .cta-block::after {
      content: "";
      position: absolute;
      bottom: -100px;
      right: -60px;
      width: 300px;
      height: 300px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(255,111,74,.12) 0%, transparent 70%);
    }

    .cta-inner {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 720px;
      margin: 0 auto;
    }

    .cta-inner h2 {
      color: #fff;
      font-size: clamp(1.5rem, 2.5vw, 2rem);
      font-weight: 700;
      margin-bottom: 12px;
    }

    .cta-inner p {
      color: rgba(255,255,255,.75);
      font-size: 15px;
      margin-bottom: 32px;
    }

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

    /* 页脚 */
    .footer {
      background: #042F2E;
      color: #DBE8E5;
      padding: 60px 0 0;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.4fr;
      gap: 40px;
      padding-bottom: 40px;
      border-bottom: 1px solid rgba(255,255,255,.1);
    }

    .footer-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: #fff;
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 14px;
    }

    .footer-logo .logo-icon {
      width: 34px;
      height: 34px;
    }

    .footer-brand p {
      font-size: 13px;
      line-height: 1.8;
      color: rgba(219,232,229,.7);
      margin-bottom: 0;
      max-width: 300px;
    }

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

    .footer ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .footer ul li {
      margin-bottom: 10px;
      font-size: 13px;
      color: rgba(219,232,229,.7);
    }

    .footer ul a {
      color: rgba(219,232,229,.7);
      text-decoration: none;
      transition: color .2s ease;
    }

    .footer ul a:hover {
      color: #fff;
    }

    .footer-contact li {
      display: flex;
      gap: 8px;
      align-items: flex-start;
    }

    .footer-contact i {
      margin-top: 4px;
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 8px;
      padding: 20px 0;
      font-size: 13px;
      color: rgba(219,232,229,.5);
    }

    @media (max-width: 900px) {
      .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
      }
    }

    @media (max-width: 520px) {
      .footer-top {
        grid-template-columns: 1fr;
        gap: 28px;
      }

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

    /* 图片装饰波浪 */
    .wave-line {
      width: 100%;
      height: 20px;
      background: repeating-radial-gradient(circle at 50% 100%, transparent 0 14px, rgba(15,118,110,.04) 14px 18px);
      border-radius: 0;
    }