/* roulang page: index */
:root{
  --vp-primary:#0E4C4A;
  --vp-primary-dark:#083836;
  --vp-primary-light:#1A6B66;
  --vp-accent:#F2B544;
  --vp-bg:#F6F5F1;
  --vp-bg-card:#FFFFFF;
  --vp-bg-dark:#101513;
  --vp-text:#1D211E;
  --vp-text-secondary:#5B625E;
  --vp-border:#E6E4DE;
  --vp-radius-card:12px;
  --vp-radius-btn:8px;
  --vp-shadow:0 2px 8px rgba(16,21,19,0.05);
  --vp-shadow-hover:0 8px 28px rgba(16,21,19,0.09);
  --vp-ease:cubic-bezier(0.22,1,0.36,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Inter","Roboto","Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--vp-bg);
  color:var(--vp-text);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--vp-ease)}
ul,ol{list-style:none}
button{font-family:inherit;border:none;background:none;cursor:pointer}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--vp-accent);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.bg-white{background:var(--vp-bg-card)}
.section-head{margin-bottom:48px}
.section-head h2,.section-head-between h2{font-size:32px;font-weight:700;letter-spacing:-0.01em;line-height:1.25}
.section-head p,.section-head-between p{color:var(--vp-text-secondary);margin-top:10px;font-size:15px}
.section-head-between{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:40px}
.text-link{color:var(--vp-primary);font-weight:600;font-size:14px;white-space:nowrap}
.text-link:hover{color:var(--vp-primary-light)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--vp-radius-btn);font-weight:600;font-size:14px;
  line-height:1.2;white-space:nowrap;border:1px solid transparent;
  transition:all .25s var(--vp-ease);
}
.btn-primary{background:var(--vp-primary);color:#fff}
.btn-primary:hover{background:var(--vp-primary-light);box-shadow:0 0 0 1px var(--vp-accent)}
.btn-primary:active{transform:scale(0.98)}
.btn-outline{border-color:var(--vp-primary);color:var(--vp-primary);background:transparent}
.btn-outline:hover{background:rgba(14,76,74,0.05)}
.btn-ghost{color:var(--vp-text-secondary)}
.btn-ghost:hover{background:rgba(16,21,19,0.04);color:var(--vp-text)}
.btn-light{background:#fff;color:var(--vp-primary)}
.btn-light:hover{background:var(--vp-accent);color:var(--vp-text);transform:translateY(-1px)}
.btn-lg{padding:14px 32px;font-size:16px}
.btn-sm{padding:8px 16px;font-size:13px}

.site-header{position:relative;z-index:100}
.header-top{background:var(--vp-bg-card);border-bottom:1px solid var(--vp-border)}
.header-top-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:baseline;gap:8px;flex-shrink:0}
.brand-mark{font-weight:800;font-size:22px;color:var(--vp-primary);letter-spacing:-0.02em}
.brand-name{font-size:18px;font-weight:700;color:var(--vp-text);letter-spacing:0.01em}
.header-actions{display:flex;align-items:center;gap:12px}
.icon-btn{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;color:var(--vp-text-secondary);font-size:16px;transition:background .2s,color .2s}
.icon-btn:hover{background:rgba(16,21,19,0.05);color:var(--vp-text)}
.search-panel{display:none;background:var(--vp-bg-card);border-bottom:1px solid var(--vp-border);padding:16px 0}
.search-panel.open{display:block}
.search-form{display:flex;gap:12px}
.search-form input{flex:1;height:40px;border:1px solid var(--vp-border);border-radius:8px;padding:0 16px;font-size:14px;transition:border-color .2s}
.search-form input:focus{border-color:var(--vp-primary);outline:2px solid var(--vp-accent);outline-offset:0}
.search-form button{width:44px;height:40px;border-radius:8px;background:var(--vp-primary);color:#fff;font-size:14px}

.channel-nav{position:sticky;top:0;z-index:50;background:var(--vp-primary);box-shadow:0 1px 0 rgba(255,255,255,0.05)}
.channel-nav-inner{display:flex;align-items:center;gap:8px;height:52px;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.channel-nav-inner::-webkit-scrollbar{display:none}
.channel-link{position:relative;color:rgba(255,255,255,0.88);font-size:15px;font-weight:500;padding:14px 18px;white-space:nowrap;transition:color .2s}
.channel-link::after{content:'';position:absolute;left:18px;right:18px;bottom:0;height:2px;background:var(--vp-accent);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--vp-ease)}
.channel-link:hover{color:#fff}
.channel-link:hover::after{transform:scaleX(1)}
.channel-link.active{color:#fff;font-weight:600}
.channel-link.active::after{transform:scaleX(1)}

.hero{position:relative;padding:88px 0 96px;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:repeating-linear-gradient(115deg,rgba(242,181,68,0.05) 0 2px,transparent 2px 24px);pointer-events:none}
.hero-inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:64px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:var(--vp-bg-card);border:1px solid var(--vp-border);color:var(--vp-primary);font-size:12px;font-weight:600}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--vp-primary)}
.hero h1{font-size:42px;line-height:1.2;font-weight:800;margin:20px 0 18px;letter-spacing:-0.01em}
.hero-sub{font-size:17px;color:var(--vp-text-secondary);line-height:1.65;margin:0 0 28px;max-width:540px}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:28px}
.hero-trust{display:flex;flex-wrap:wrap;gap:20px;font-size:13px;color:var(--vp-text-secondary)}
.hero-trust span{display:inline-flex;align-items:center;gap:6px}
.hero-trust span::before{content:'';width:4px;height:4px;border-radius:50%;background:var(--vp-accent)}
.hero-visual{position:relative}
.hero-visual img{width:100%;border-radius:var(--vp-radius-card);border:1px solid rgba(14,76,74,0.1);box-shadow:var(--vp-shadow-hover)}
.hero-live-badge{position:absolute;right:16px;bottom:16px;display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;background:var(--vp-bg-card);font-size:12px;font-weight:600;color:var(--vp-primary);box-shadow:var(--vp-shadow-hover)}
.pulse-dot{width:8px;height:8px;border-radius:50%;background:var(--vp-accent)}

.features-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:32px}
.feature-card{background:var(--vp-bg-card);border-radius:var(--vp-radius-card);padding:32px;border:1px solid var(--vp-border);transition:transform .3s var(--vp-ease),box-shadow .3s var(--vp-ease)}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--vp-shadow-hover)}
.feature-wide{grid-column:1/-1;display:grid;grid-template-columns:1fr auto;align-items:center;gap:32px}
.feature-card h3{font-size:20px;font-weight:650;margin-bottom:10px}
.feature-card p{font-size:14px;color:var(--vp-text-secondary);line-height:1.6}
.feature-icon{font-size:32px;color:var(--vp-primary);width:56px;height:56px;background:rgba(14,76,74,0.06);border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0}

.demo-inner{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.demo-content h2{font-size:32px;font-weight:700;margin-bottom:14px}
.demo-content>p{color:var(--vp-text-secondary);margin-bottom:24px;font-size:16px}
.demo-list{margin:0 0 32px}
.demo-list li{position:relative;padding:8px 0 8px 28px;font-size:15px;color:var(--vp-text)}
.demo-list li::before{content:'';position:absolute;left:0;top:18px;width:14px;height:2px;background:var(--vp-accent)}
.demo-stats{display:flex;gap:24px}
.demo-stat{padding:14px 22px;background:var(--vp-bg);border-radius:8px;text-align:center}
.demo-stat .num{display:block;font-size:22px;font-weight:700;color:var(--vp-primary);font-feature-settings:'tnum'}
.demo-stat .label{font-size:12px;color:var(--vp-text-secondary)}
.demo-visual{position:relative}
.demo-visual img{width:100%;border-radius:var(--vp-radius-card);box-shadow:var(--vp-shadow-hover)}
.demo-badge{position:absolute;left:-16px;bottom:-16px;background:var(--vp-primary);color:#fff;padding:14px 22px;border-radius:var(--vp-radius-card);box-shadow:var(--vp-shadow-hover)}
.demo-badge .num{display:block;font-size:26px;font-weight:800;font-feature-settings:'tnum'}
.demo-badge .label{font-size:12px;opacity:0.8}

.proof{background:var(--vp-bg-dark);color:var(--vp-bg-card)}
.proof-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-bottom:64px;text-align:center}
.stat-num{display:block;font-size:42px;font-weight:800;color:var(--vp-accent);font-feature-settings:'tnum';margin-bottom:6px}
.stat-label{font-size:14px;color:rgba(255,255,255,0.7)}
.proof-list{display:grid;grid-template-columns:repeat(2,1fr);gap:32px}
.proof-card{background:rgba(255,255,255,0.05);border:1px solid rgba(255,255,255,0.08);border-radius:12px;padding:28px}
.proof-card p{font-size:14px;line-height:1.7;color:rgba(255,255,255,0.85);margin-bottom:20px}
.proof-user{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,0.6)}
.proof-avatar{width:36px;height:36px;border-radius:50%;object-fit:cover}

.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;align-items:start}
.plan-card{position:relative;background:var(--vp-bg-card);border-radius:12px;border:1px solid var(--vp-border);padding:32px;text-align:center;transition:transform .3s var(--vp-ease),box-shadow .3s var(--vp-ease)}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--vp-shadow-hover)}
.plan-card.recommended{border-color:var(--vp-primary);box-shadow:var(--vp-shadow-hover);transform:translateY(-24px)}
.plan-card.recommended:hover{transform:translateY(-26px)}
.plan-badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--vp-accent);color:var(--vp-text);font-size:12px;font-weight:700;padding:4px 16px;border-radius:999px;white-space:nowrap}
.plan-name{display:block;font-size:22px;font-weight:700;margin-bottom:6px}
.plan-note{display:block;font-size:14px;color:var(--vp-text-secondary);margin-bottom:24px}
.plan-features{margin:0 0 28px;text-align:left}
.plan-features li{padding:6px 0 6px 24px;position:relative;font-size:13px;color:var(--vp-text-secondary)}
.plan-features li::before{content:'\f00c';font-family:'Font Awesome 6 Free';font-weight:900;position:absolute;left:0;color:var(--vp-primary);font-size:12px}

.news-list{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-featured{grid-column:1/-1}
.news-card{display:flex;gap:20px;background:#fff;border:1px solid var(--vp-border);border-radius:12px;padding:20px;height:100%;transition:transform .3s var(--vp-ease),box-shadow .3s var(--vp-ease)}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--vp-shadow-hover)}
.news-featured .news-card{padding:24px}
.news-thumb{flex:0 0 160px;height:110px;border-radius:8px;overflow:hidden;background:var(--vp-bg)}
.news-featured .news-thumb{flex:0 0 340px;height:200px}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--vp-ease)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{display:flex;flex-direction:column;flex:1;min-width:0}
.news-meta{display:flex;align-items:center;gap:12px;margin-bottom:8px;font-size:12px;color:var(--vp-text-secondary)}
.news-cat{display:inline-block;padding:2px 10px;border-radius:999px;background:rgba(14,76,74,0.08);color:var(--vp-primary);font-weight:600}
.news-title{font-size:18px;font-weight:650;line-height:1.4;margin-bottom:8px}
.news-featured .news-title{font-size:22px}
.news-excerpt{font-size:14px;color:var(--vp-text-secondary);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-more{margin-top:auto;padding-top:12px;color:var(--vp-primary);font-size:13px;font-weight:600}
.news-empty{grid-column:1/-1;text-align:center;padding:64px 0;color:var(--vp-text-secondary);background:#fff;border-radius:12px;border:1px dashed var(--vp-border)}

.faq-inner{display:grid;grid-template-columns:0.8fr 1.2fr;gap:64px}
.faq-head h2{font-size:32px;font-weight:700;margin-bottom:16px}
.faq-head p{font-size:15px;color:var(--vp-text-secondary);margin-bottom:24px;max-width:340px}
.faq-item{border-bottom:1px solid var(--vp-border)}
.faq-item:first-child{border-top:1px solid var(--vp-border)}
.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0;font-size:16px;font-weight:600;color:var(--vp-text);text-align:left}
.faq-question:hover{color:var(--vp-primary)}
.faq-arrow{font-size:14px;color:var(--vp-text-secondary);transition:transform .25s var(--vp-ease);flex-shrink:0}
.faq-item.open .faq-arrow{transform:rotate(180deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .25s var(--vp-ease)}
.faq-answer p{font-size:14px;color:var(--vp-text-secondary);line-height:1.7;padding-bottom:18px}

.cta-section{position:relative;background-color:var(--vp-bg-dark);background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;padding:96px 0;text-align:center}
.cta-section::before{content:'';position:absolute;inset:0;background:rgba(16,21,19,0.82)}
.cta-section .container{position:relative;z-index:1}
.cta-section h2{font-size:34px;font-weight:800;color:#fff;margin-bottom:12px}
.cta-section p{font-size:16px;color:rgba(255,255,255,0.7);margin-bottom:32px}

.site-footer{background:var(--vp-bg-dark);color:rgba(255,255,255,0.75);padding:64px 0 0}
.footer-top{display:grid;grid-template-columns:1.4fr 0.8fr 0.8fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand h3{font-size:20px;font-weight:700;color:#fff;margin-bottom:10px}
.footer-brand p{font-size:13px;line-height:1.7;max-width:280px;color:rgba(255,255,255,0.6)}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col a,.footer-col span{display:block;font-size:13px;color:rgba(255,255,255,0.6);padding:6px 0;transition:color .2s}
.footer-col a:hover{color:var(--vp-accent)}
.footer-social{display:flex;gap:12px;margin-top:20px}
.footer-social a{width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:rgba(255,255,255,0.08);color:rgba(255,255,255,0.7);font-size:14px;transition:background .2s,color .2s}
.footer-social a:hover{background:var(--vp-accent);color:var(--vp-text)}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.08);padding:20px 0}
.footer-bottom-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;font-size:13px;color:rgba(255,255,255,0.5)}
.footer-bottom a{color:rgba(255,255,255,0.5)}
.footer-bottom a:hover{color:var(--vp-accent)}

.float-cta{position:fixed;right:24px;bottom:24px;z-index:80;width:56px;height:56px;border-radius:50%;background:var(--vp-primary);border:1px solid rgba(242,181,68,0.6);display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;box-shadow:var(--vp-shadow-hover);transition:width .3s var(--vp-ease),border-radius .3s var(--vp-ease);overflow:hidden;white-space:nowrap;gap:0}
.float-cta span{max-width:0;opacity:0;font-size:14px;font-weight:600;transition:max-width .3s var(--vp-ease),opacity .2s}
.float-cta:hover{width:160px;border-radius:999px;gap:8px}
.float-cta:hover span{max-width:80px;opacity:1}

@media(max-width:1023px){
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:34px}
  .demo-inner{grid-template-columns:1fr;gap:40px}
  .faq-inner{grid-template-columns:1fr;gap:40px}
  .footer-top{grid-template-columns:1fr 1fr}
  .pricing-grid{grid-template-columns:repeat(2,1fr)}
  .plan-card.recommended{transform:translateY(-14px)}
  .plan-card.recommended:hover{transform:translateY(-16px)}
  .news-thumb{flex:0 0 130px;height:100px}
  .news-featured .news-thumb{height:180px}
}
@media(max-width:767px){
  .header-top-inner{height:60px}
  .brand-mark{font-size:18px}
  .brand-name{font-size:15px}
  .header-actions .btn-ghost{display:none}
  .section{padding:64px 0}
  .hero{padding:48px 0 64px}
  .hero h1{font-size:28px}
  .hero-sub{font-size:15px}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .features-grid{grid-template-columns:1fr}
  .feature-wide{grid-template-columns:1fr}
  .proof-stats{grid-template-columns:1fr;gap:24px}
  .proof-list{grid-template-columns:1fr}
  .pricing-grid{grid-template-columns:1fr}
  .plan-card.recommended{transform:translateY(0)}
  .plan-card.recommended:hover{transform:translateY(-4px)}
  .news-list{grid-template-columns:1fr}
  .news-featured{grid-column:auto}
  .news-card{flex-direction:column}
  .news-thumb{flex:none;width:100%;height:160px}
  .news-featured .news-thumb{width:100%;height:180px}
  .footer-top{grid-template-columns:1fr}
  .float-cta{width:48px;height:48px;right:16px;bottom:16px}
  .float-cta:hover{width:140px}
  .cta-section h2{font-size:26px}
  .demo-badge{left:8px;bottom:8px}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --vp-primary:#0E4C4A;
  --vp-primary-dark:#083836;
  --vp-primary-light:#1A6B66;
  --vp-accent:#F2B544;
  --vp-bg:#F6F5F1;
  --vp-bg-card:#FFFFFF;
  --vp-bg-dark:#101513;
  --vp-text:#1D211E;
  --vp-text-secondary:#5B625E;
  --vp-border:#E6E4DE;
  --vp-radius:12px;
  --vp-radius-sm:8px;
  --vp-shadow:0 2px 8px rgba(16,21,19,.05);
  --vp-shadow-hover:0 8px 28px rgba(16,21,19,.09);
  --vp-transition:all .3s cubic-bezier(.22,1,.36,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Inter",sans-serif;
  background:var(--vp-bg);
  color:var(--vp-text);
  line-height:1.7;
  font-size:16px;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}
button,input,textarea{font:inherit;border:none;outline:none;background:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:48px;flex-wrap:wrap}
.section-head h2{font-size:32px;font-weight:700;line-height:1.25;letter-spacing:-.5px}
.section-head p{color:var(--vp-text-secondary);font-size:15px;max-width:560px}
.text-link{display:inline-flex;align-items:center;gap:8px;color:var(--vp-primary);font-weight:600;font-size:14px;transition:var(--vp-transition)}
.text-link i{transition:transform .3s cubic-bezier(.22,1,.36,1)}
.text-link:hover{color:var(--vp-primary-light)}
.text-link:hover i{transform:translateX(4px)}
.tag{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;background:var(--vp-bg);border:1px solid var(--vp-border);font-size:12px;font-weight:600;color:var(--vp-text-secondary);letter-spacing:.3px}
.tag-accent{background:#FFF8E8;border-color:#F2DCA0;color:#8A6500}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer;transition:var(--vp-transition);line-height:1.4;white-space:nowrap;border:1px solid transparent}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--vp-primary);color:#fff}
.btn-primary:hover{background:var(--vp-primary-light);border-color:rgba(242,181,68,.6)}
.btn-outline{background:transparent;color:var(--vp-primary);border-color:var(--vp-primary)}
.btn-outline:hover{background:rgba(14,76,74,.06)}
.btn-light{background:#fff;color:var(--vp-primary)}
.btn-light:hover{background:var(--vp-accent);color:var(--vp-primary)}
.btn-sm{padding:8px 18px;font-size:14px}
.btn:focus-visible,.text-link:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--vp-accent);outline-offset:2px}
:focus-visible{outline:2px solid var(--vp-accent);outline-offset:2px}
.site-header{background:var(--vp-bg-card);position:relative;z-index:60;border-bottom:1px solid var(--vp-border)}
.header-top{border-bottom:1px solid var(--vp-border)}
.header-top-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{font-size:20px;font-weight:800;color:var(--vp-primary);letter-spacing:-.5px;background:rgba(14,76,74,.08);padding:4px 10px;border-radius:6px}
.brand-name{font-size:19px;font-weight:750;color:var(--vp-text);letter-spacing:.2px}
.header-actions{display:flex;align-items:center;gap:10px}
.icon-btn{width:40px;height:40px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;color:var(--vp-text-secondary);transition:var(--vp-transition);font-size:16px}
.icon-btn:hover{background:rgba(14,76,74,.06);color:var(--vp-primary)}
.btn-ghost{background:transparent;color:var(--vp-text-secondary);border-color:var(--vp-border);padding:8px 18px;font-size:14px}
.btn-ghost:hover{background:rgba(14,76,74,.05);color:var(--vp-primary)}
.search-panel{display:none;background:var(--vp-bg-card);border-bottom:1px solid var(--vp-border);padding:18px 0}
.search-panel.open{display:block}
.search-form{display:flex;gap:10px;align-items:center}
.search-form input{flex:1;height:44px;border:1px solid var(--vp-border);border-radius:8px;padding:0 16px;font-size:15px;background:var(--vp-bg);transition:var(--vp-transition)}
.search-form input:focus{border-color:var(--vp-accent);box-shadow:0 0 0 3px rgba(242,181,68,.18);background:#fff;outline:none}
.search-form button{width:44px;height:44px;border-radius:8px;background:var(--vp-primary);color:#fff;font-size:15px;cursor:pointer;transition:var(--vp-transition)}
.search-form button:hover{background:var(--vp-primary-light)}
.channel-nav{background:var(--vp-primary)}
.channel-nav-inner{display:flex;align-items:center;gap:32px;height:52px;overflow-x:auto;scrollbar-width:none}
.channel-nav-inner::-webkit-scrollbar{display:none}
.channel-link{position:relative;color:rgba(255,255,255,.82);font-size:15px;font-weight:500;padding:14px 2px;white-space:nowrap;transition:color .3s ease}
.channel-link::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;background:var(--vp-accent);transform:scaleX(0);transform-origin:left;transition:transform .3s cubic-bezier(.22,1,.36,1)}
.channel-link:hover{color:var(--vp-accent)}
.channel-link.active{color:#fff}
.channel-link.active::after{transform:scaleX(1)}
.channel-nav.sticky{position:sticky;top:0;z-index:50}

/* Channel Hero */
.channel-hero{background:var(--vp-bg);position:relative;overflow:hidden}
.channel-hero::before{content:"";position:absolute;top:0;right:0;width:520px;height:520px;background:linear-gradient(135deg,transparent 0%,rgba(242,181,68,.06) 60%,rgba(242,181,68,.09) 100%);border-radius:0 0 0 100%;pointer-events:none}
.channel-hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:72px;align-items:center;padding:88px 0;min-height:520px}
.hero-copy{position:relative;z-index:2}
.channel-badge{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--vp-border);border-radius:999px;padding:6px 16px;font-size:13px;font-weight:600;color:var(--vp-primary);margin-bottom:24px;box-shadow:var(--vp-shadow)}
.channel-badge i{width:8px;height:8px;border-radius:50%;background:var(--vp-primary)}
.hero-copy h1{font-size:42px;line-height:1.2;font-weight:800;color:var(--vp-text);letter-spacing:-1px;margin-bottom:20px}
.hero-copy h1 .accent{color:var(--vp-accent);font-weight:800}
.hero-lead{font-size:17px;line-height:1.75;color:var(--vp-text-secondary);max-width:520px;margin-bottom:32px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-media{position:relative;z-index:1}
.hero-media img{width:100%;height:420px;object-fit:cover;border-radius:12px;border:1px solid rgba(14,76,74,.12);box-shadow:0 20px 50px rgba(16,21,19,.1)}
.live-badge{position:absolute;right:16px;bottom:16px;display:inline-flex;align-items:center;gap:8px;background:rgba(16,21,19,.82);color:#fff;padding:8px 16px;border-radius:999px;font-size:13px;font-weight:600;backdrop-filter:blur(6px)}
.pulse-dot{width:8px;height:8px;border-radius:50%;background:#35D0A5;box-shadow:0 0 0 0 rgba(53,208,165,.6);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(53,208,165,.45)}70%{box-shadow:0 0 0 8px rgba(53,208,165,0)}100%{box-shadow:0 0 0 0 rgba(53,208,165,0)}}

/* Service Section */
.service-section{background:#fff}
.service-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.service-card{border-radius:var(--vp-radius);padding:36px;border:1px solid var(--vp-border);background:var(--vp-bg-card);transition:var(--vp-transition)}
.service-card:hover{box-shadow:var(--vp-shadow-hover);transform:translateY(-4px)}
.service-card.featured{grid-column:1/-1;display:grid;grid-template-columns:1fr auto;align-items:center;gap:32px;background:var(--vp-primary);border-color:var(--vp-primary);color:#fff}
.service-card.featured .service-icon{background:rgba(255,255,255,.12);color:#fff}
.service-card.featured h3{color:#fff}
.service-card.featured p{color:rgba(255,255,255,.76)}
.service-card.featured:hover{transform:translateY(-4px)}
.service-icon{width:56px;height:56px;border-radius:14px;background:rgba(14,76,74,.08);color:var(--vp-primary);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:20px;transition:var(--vp-transition)}
.service-card h3{font-size:19px;font-weight:700;margin-bottom:10px;color:var(--vp-text)}
.service-card p{font-size:15px;color:var(--vp-text-secondary);line-height:1.7;max-width:460px}

/* Featured Section */
.featured-section{background:var(--vp-bg)}
.featured-main{position:relative;border-radius:12px;overflow:hidden;margin-bottom:24px;min-height:420px;display:flex;align-items:flex-end}
.featured-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.22,1,.36,1)}
.featured-main:hover img{transform:scale(1.03)}
.featured-main::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(16,21,19,.78) 0%,rgba(16,21,19,.18) 50%,rgba(16,21,19,.02) 100%)}
.featured-main-overlay{position:relative;z-index:2;padding:40px;color:#fff;max-width:680px}
.featured-main-overlay .tag{margin-bottom:14px;background:rgba(255,255,255,.92);color:var(--vp-primary);border:none}
.featured-main-overlay h3{font-size:28px;font-weight:750;line-height:1.3;margin-bottom:10px}
.featured-main-overlay p{font-size:15px;color:rgba(255,255,255,.82);line-height:1.7}
.featured-thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.thumb-card{background:var(--vp-bg-card);border:1px solid var(--vp-border);border-radius:10px;overflow:hidden;transition:var(--vp-transition)}
.thumb-card:hover{box-shadow:var(--vp-shadow-hover);transform:translateY(-4px)}
.thumb-card img{width:100%;height:120px;object-fit:cover}
.thumb-body{padding:16px 18px}
.thumb-body .tag{margin-bottom:8px;font-size:11px}
.thumb-body h4{font-size:15px;font-weight:650;line-height:1.4;color:var(--vp-text)}

/* Content Grid */
.content-section{background:var(--vp-bg)}
.content-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:32px}
.content-card{background:var(--vp-bg-card);border:1px solid var(--vp-border);border-radius:12px;overflow:hidden;transition:var(--vp-transition);display:flex;flex-direction:column}
.content-card:hover{box-shadow:var(--vp-shadow-hover);transform:translateY(-4px)}
.content-card-wide{grid-column:1/-1;display:grid;grid-template-columns:1.1fr .9fr;gap:0}
.content-card-wide .card-media{min-height:280px}
.card-media{position:relative;overflow:hidden;height:200px;flex-shrink:0}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.22,1,.36,1)}
.content-card:hover .card-media img{transform:scale(1.04)}
.card-body{display:flex;flex-direction:column;padding:28px;flex:1}
.card-body .tag{align-self:flex-start;margin-bottom:14px}
.card-body h3{font-size:20px;font-weight:700;line-height:1.4;color:var(--vp-text);margin-bottom:12px}
.card-body p{font-size:14.5px;color:var(--vp-text-secondary);line-height:1.7;margin-bottom:20px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:16px;border-top:1px solid var(--vp-border);font-size:13px;color:var(--vp-text-secondary)}
.card-meta .text-link{font-size:13px}

/* Stats + CTA */
.stats-section{background:var(--vp-bg-dark);color:#fff;border-radius:0}
.stats-band{padding:72px 0;text-align:center}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;margin-bottom:56px}
.stat-item{text-align:center}
.stat-number{display:block;font-size:44px;font-weight:800;color:#fff;font-feature-settings:"tnum";letter-spacing:-1px;margin-bottom:6px}
.stat-number em{font-style:normal;color:var(--vp-accent)}
.stat-label{font-size:14px;color:rgba(255,255,255,.65);letter-spacing:.5px}
.subscribe-cta{max-width:620px;margin:0 auto;text-align:center;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:48px}
.subscribe-cta h3{font-size:28px;font-weight:750;margin-bottom:14px}
.subscribe-cta p{font-size:15px;color:rgba(255,255,255,.72);margin-bottom:28px;line-height:1.8}
.subscribe-cta .btn-primary{background:var(--vp-accent);color:var(--vp-text)} 
.subscribe-cta .btn-primary:hover{background:#ffc55a;border-color:var(--vp-accent)}

/* Promo Banners */
.promo-section{background:var(--vp-bg)}
.promo-banners{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.promo-banner{position:relative;border-radius:14px;padding:44px 40px;min-height:220px;display:flex;flex-direction:column;justify-content:center;overflow:hidden;background-size:cover;background-position:center;transition:var(--vp-transition)}
.promo-banner::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(16,21,19,.86) 0%,rgba(16,21,19,.55) 70%,rgba(16,21,19,.25) 100%)}
.promo-banner:hover{transform:translateY(-4px);box-shadow:var(--vp-shadow-hover)}
.promo-banner>*{position:relative;z-index:2;color:#fff}
.promo-banner h3{font-size:22px;font-weight:700;margin-bottom:10px}
.promo-banner p{font-size:14px;color:rgba(255,255,255,.78);max-width:320px;margin-bottom:20px;line-height:1.7}
.promo-banner .btn{align-self:flex-start}

/* Footer */
.site-footer{background:var(--vp-bg-dark);color:rgba(255,255,255,.7);margin-top:0}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:48px;padding:72px 0 48px}
.footer-brand h3{font-size:22px;color:#fff;font-weight:750;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.8;max-width:340px;margin-bottom:20px;color:rgba(255,255,255,.6)}
.footer-social{display:flex;gap:12px}
.footer-social a{width:40px;height:40px;border-radius:8px;border:1px solid rgba(255,255,255,.15);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.75);font-size:16px;transition:var(--vp-transition)}
.footer-social a:hover{background:var(--vp-primary-light);border-color:transparent;color:#fff;transform:translateY(-2px)}
.footer-col h4{font-size:15px;font-weight:650;color:#fff;margin-bottom:16px}
.footer-col a,.footer-col span{display:block;font-size:14px;color:rgba(255,255,255,.6);padding:5px 0;transition:color .3s ease;line-height:1.6}
.footer-col a:hover{color:var(--vp-accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:24px 0}
.footer-bottom-inner{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.45);gap:16px;flex-wrap:wrap}
.footer-bottom-inner a{color:rgba(255,255,255,.55)}
.footer-bottom-inner a:hover{color:var(--vp-accent)}

/* Responsive */
@media(max-width:1024px){
  .container{padding:0 20px}
  .channel-hero-inner{grid-template-columns:1fr;gap:40px;padding:64px 0;min-height:auto}
  .hero-media img{height:360px}
  .service-grid{grid-template-columns:1fr}
  .service-card.featured{grid-template-columns:1fr;gap:20px}
  .featured-thumbs{grid-template-columns:repeat(2,1fr)}
  .content-card-wide{grid-template-columns:1fr}
  .content-card-wide .card-media{min-height:220px}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:40px 24px}
  .promo-banners{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr;gap:40px}
  .section{padding:72px 0}
}
@media(max-width:767px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .section-head h2{font-size:26px}
  .header-top-inner{height:64px}
  .brand-mark{font-size:17px;padding:4px 8px}
  .brand-name{font-size:16px}
  .header-actions .btn.btn-ghost{display:none}
  .channel-nav-inner{gap:22px;height:48px}
  .channel-link{font-size:14px;padding:13px 0}
  .hero-copy h1{font-size:29px}
  .hero-lead{font-size:15px}
  .hero-actions .btn{flex:1;padding:12px 14px;font-size:14px}
  .hero-media img{height:260px}
  .live-badge{padding:6px 12px;font-size:12px}
  .service-card{padding:24px}
  .service-card.featured{padding:24px}
  .featured-main{min-height:300px}
  .featured-main-overlay{padding:24px}
  .featured-main-overlay h3{font-size:21px}
  .featured-thumbs{grid-template-columns:1fr 1fr;gap:14px}
  .thumb-card img{height:95px}
  .thumb-body{padding:12px}
  .thumb-body h4{font-size:13.5px}
  .content-grid{grid-template-columns:1fr;gap:20px}
  .card-body{padding:20px}
  .card-media{height:180px}
  .content-card-wide .card-media{min-height:200px}
  .stats-band{padding:48px 0}
  .stat-number{font-size:32px}
  .subscribe-cta{padding:32px 20px}
  .subscribe-cta h3{font-size:23px}
  .promo-banner{padding:28px 24px;min-height:200px}
  .promo-banner h3{font-size:19px}
  .footer-top{grid-template-columns:1fr;gap:32px;padding:48px 0 32px}
  .footer-bottom-inner{flex-direction:column;gap:8px;text-align:center}
}
@media(max-width:520px){
  .featured-thumbs{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr}
  .header-actions .btn{padding:8px 13px;font-size:13px}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .pulse-dot{animation:none}
}

/* roulang page: article */
:root {
  --vp-primary: #0E4C4A;
  --vp-primary-dark: #083836;
  --vp-primary-light: #1A6B66;
  --vp-accent: #F2B544;
  --vp-bg: #F6F5F1;
  --vp-bg-card: #FFFFFF;
  --vp-bg-dark: #101513;
  --vp-text: #1D211E;
  --vp-text-secondary: #5B625E;
  --vp-border: #E6E4DE;
  --vp-radius: 12px;
  --vp-shadow: 0 2px 8px rgba(16, 21, 19, 0.05);
  --vp-shadow-hover: 0 8px 28px rgba(16, 21, 19, 0.09);
  --vp-transition: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

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

body, h1, h2, h3, h4, p, ul, ol, blockquote, table, figure {
  margin: 0;
}

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

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

button, input, textarea {
  font: inherit;
  border: none;
  background: none;
  color: inherit;
}

ul, ol {
  padding-left: 1.25rem;
}

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--vp-accent);
  outline-offset: 2px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s var(--vp-transition);
}

.btn-sm {
  font-size: 13px;
  padding: 9px 18px;
}

.btn-primary {
  background: var(--vp-primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--vp-primary-light);
  box-shadow: inset 0 0 0 1px var(--vp-accent);
}

.btn-primary:active,
.btn-ghost:active,
.btn-outline:active {
  transform: scale(0.98);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0);
  color: var(--vp-primary);
  border: 1px solid var(--vp-primary);
}

.btn-ghost:hover {
  background: rgba(14, 76, 74, 0.06);
}

.btn-outline {
  background: transparent;
  color: var(--vp-primary);
  border: 1px solid var(--vp-primary);
  padding: 12px 24px;
}

.btn-outline:hover {
  background: rgba(14, 76, 74, 0.06);
}

.site-header {
  background: #fff;
}

.header-top {
  background: #fff;
  border-bottom: 1px solid var(--vp-border);
  position: relative;
  z-index: 60;
}

.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 16px;
}

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

.brand-mark {
  background: var(--vp-primary);
  color: #fff;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.02em;
  padding: 6px 12px;
  border-radius: 8px;
}

.brand-name {
  font-size: 20px;
  font-weight: 800;
  color: var(--vp-text);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.icon-btn {
  width: 40px;
  height: 40px;
  border: 1px solid var(--vp-border);
  border-radius: 8px;
  background: #fff;
  color: var(--vp-text-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s var(--vp-transition);
}

.icon-btn:hover {
  border-color: var(--vp-primary);
  color: var(--vp-primary);
}

.search-panel {
  display: none;
  border-bottom: 1px solid var(--vp-border);
  background: #fff;
  padding: 12px 0;
}

.search-panel.open {
  display: block;
}

.search-form {
  display: flex;
  gap: 8px;
}

.search-form input {
  flex: 1;
  height: 40px;
  border: 1px solid var(--vp-border);
  border-radius: 8px;
  padding: 0 16px;
  font-size: 14px;
  color: var(--vp-text);
  transition: border-color 0.3s var(--vp-transition), box-shadow 0.3s var(--vp-transition);
}

.search-form input:focus {
  outline: none;
  border-color: var(--vp-primary);
  box-shadow: 0 0 0 3px rgba(242, 181, 68, 0.2);
}

.search-form button {
  width: 44px;
  border-radius: 8px;
  background: var(--vp-primary);
  color: #fff;
  cursor: pointer;
  transition: background 0.3s var(--vp-transition);
}

.search-form button:hover {
  background: var(--vp-primary-light);
}

.channel-nav {
  background: var(--vp-primary);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 2px 8px rgba(16, 21, 19, 0.08);
}

.channel-nav-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 48px;
  overflow-x: auto;
  scrollbar-width: none;
}

.channel-nav-inner::-webkit-scrollbar {
  display: none;
}

.channel-link {
  position: relative;
  color: rgba(255, 255, 255, 0.86);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  height: 48px;
  display: inline-flex;
  align-items: center;
  padding: 0 2px;
  transition: color 0.25s var(--vp-transition);
}

.channel-link:hover {
  color: #ffd98a;
}

.channel-link.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--vp-accent);
}

.article-page-head {
  background:
    linear-gradient(110deg, rgba(16, 21, 19, 0.92), rgba(14, 76, 74, 0.82)),
    url('/assets/images/backpic/back-2.webp') center/cover;
  padding: 58px 0 84px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.72);
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.9);
  transition: color 0.25s var(--vp-transition);
}

.breadcrumb a:hover {
  color: #fff;
}

.breadcrumb .sep {
  color: rgba(255, 255, 255, 0.45);
}

.breadcrumb .current {
  color: var(--vp-accent);
  max-width: 320px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.article-sheet {
  background: var(--vp-bg-card);
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  box-shadow: 0 24px 64px rgba(16, 21, 19, 0.08);
  margin-top: -56px;
  padding: 56px 64px 48px;
  position: relative;
  z-index: 2;
}

.article-header {
  padding-bottom: 30px;
  border-bottom: 1px solid var(--vp-border);
}

.article-category {
  display: inline-flex;
  align-items: center;
  background: rgba(14, 76, 74, 0.08);
  color: var(--vp-primary);
  border: 1px solid rgba(14, 76, 74, 0.16);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 14px;
  letter-spacing: 0.02em;
}

.article-header h1 {
  font-size: 38px;
  line-height: 1.25;
  font-weight: 800;
  margin-top: 18px;
  letter-spacing: -0.01em;
}

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

.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.article-meta i {
  color: var(--vp-primary-light);
}

.article-body {
  padding-top: 32px;
  font-size: 16px;
  line-height: 1.85;
  color: #333a36;
}

.article-body h2,
.article-body h3 {
  font-weight: 700;
  line-height: 1.35;
  margin: 32px 0 14px;
  color: var(--vp-text);
}

.article-body h2 {
  font-size: 26px;
}

.article-body h3 {
  font-size: 20px;
}

.article-body p {
  margin-bottom: 20px;
}

.article-body a {
  color: var(--vp-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-body img {
  border-radius: 12px;
  margin: 24px 0;
}

.article-body blockquote {
  background: rgba(14, 76, 74, 0.05);
  border-left: 3px solid var(--vp-primary);
  padding: 16px 22px;
  margin: 24px 0;
  border-radius: 0 12px 12px 0;
  color: var(--vp-text-secondary);
}

.article-body ul,
.article-body ol {
  margin: 0 0 20px;
  padding-left: 1.5rem;
}

.article-body li {
  margin-bottom: 8px;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}

.article-body th,
.article-body td {
  border: 1px solid var(--vp-border);
  padding: 10px 12px;
  text-align: left;
}

.article-body th {
  background: rgba(14, 76, 74, 0.06);
  font-weight: 600;
}

.article-body pre {
  background: var(--vp-bg-dark);
  color: #f4f2ec;
  padding: 18px 20px;
  border-radius: 12px;
  overflow-x: auto;
  margin: 24px 0;
}

.article-body code {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 14px;
}

.article-footer {
  margin-top: 42px;
}

.article-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  padding-top: 28px;
  border-top: 1px solid var(--vp-border);
}

.tag {
  background: var(--vp-bg);
  border: 1px solid var(--vp-border);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  color: var(--vp-text-secondary);
  padding: 5px 14px;
}

.article-prev-next {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 28px;
}

.pn-btn {
  border: 1px solid var(--vp-border);
  border-radius: 12px;
  padding: 14px 18px;
  background: #fff;
  font-size: 14px;
  line-height: 1.5;
  transition: all 0.3s var(--vp-transition);
}

.pn-btn span {
  display: block;
  font-size: 12px;
  color: var(--vp-text-secondary);
  margin-bottom: 5px;
}

.pn-btn:hover {
  border-color: var(--vp-primary);
  box-shadow: var(--vp-shadow-hover);
  transform: translateY(-2px);
}

.pn-btn.pn-next {
  text-align: right;
}

.article-return {
  margin-top: 32px;
  text-align: center;
}

.related-section {
  background: #fff;
  border-top: 1px solid var(--vp-border);
  margin-top: 64px;
  padding: 56px 0 72px;
}

.related-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 28px;
  gap: 16px;
}

.related-header h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--vp-text);
}

.related-header a {
  font-size: 14px;
  font-weight: 600;
  color: var(--vp-primary);
}

.related-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 24px;
}

.related-card {
  background: var(--vp-bg-card);
  border: 1px solid var(--vp-border);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.35s var(--vp-transition);
}

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

.related-cover {
  overflow: hidden;
}

.related-cover img {
  width: 100%;
  height: 170px;
  object-fit: cover;
  transition: transform 0.4s var(--vp-transition);
}

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

.related-content {
  padding: 20px 22px 22px;
}

.related-cat {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--vp-primary);
  background: rgba(14, 76, 74, 0.07);
  border-radius: 999px;
  padding: 4px 10px;
  margin-bottom: 12px;
}

.related-content h3 {
  font-size: 17px;
  line-height: 1.45;
  font-weight: 650;
  color: var(--vp-text);
  margin-bottom: 10px;
}

.related-content p {
  font-size: 13px;
  color: var(--vp-text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-meta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  font-size: 12px;
  color: var(--vp-primary);
  font-weight: 600;
}

.not-found-card {
  text-align: center;
  padding: 80px 32px;
}

.not-found-card h1 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 14px;
}

.not-found-card p {
  color: var(--vp-text-secondary);
  margin-bottom: 24px;
}

.back-top-btn {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 80;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(14, 76, 74, 0.12);
  color: var(--vp-primary);
  border: 1px solid rgba(14, 76, 74, 0.2);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 0.3s var(--vp-transition);
}

.back-top-btn.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-top-btn:hover {
  background: var(--vp-primary);
  color: #fff;
}

.site-footer {
  background: var(--vp-bg-dark);
  color: rgba(255, 255, 255, 0.72);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  padding: 64px 0 40px;
}

.footer-brand h3 {
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
  max-width: 320px;
}

.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  transition: background 0.3s var(--vp-transition), color 0.3s var(--vp-transition);
}

.footer-social a:hover {
  background: var(--vp-accent);
  color: var(--vp-bg-dark);
}

.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 14px;
}

.footer-col a,
.footer-col span {
  display: block;
  padding: 5px 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.58);
  transition: color 0.25s var(--vp-transition);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.48);
}

.footer-bottom-inner a {
  color: rgba(255, 255, 255, 0.48);
}

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

@media (max-width: 1024px) {
  .article-sheet {
    padding: 44px 40px 40px;
  }

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

  .related-card:first-child {
    grid-column: span 2;
  }
}

@media (max-width: 767px) {
  .container {
    padding: 0 16px;
  }

  .header-top-inner {
    height: 60px;
  }

  .brand-mark {
    font-size: 12px;
    padding: 5px 9px;
  }

  .brand-name {
    font-size: 15px;
  }

  .header-actions .btn-ghost {
    display: none;
  }

  .btn-sm {
    font-size: 12px;
    padding: 8px 12px;
  }

  .channel-nav-inner {
    gap: 16px;
  }

  .article-page-head {
    padding: 42px 0 70px;
  }

  .article-sheet {
    margin-top: -48px;
    padding: 28px 18px 32px;
    border-radius: 16px;
  }

  .article-header h1 {
    font-size: 26px;
  }

  .article-meta {
    gap: 12px;
    font-size: 12px;
  }

  .article-body {
    font-size: 15px;
  }

  .related-section {
    padding: 44px 0 56px;
  }

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

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

  .related-card:first-child {
    grid-column: span 1;
  }

  .article-prev-next {
    grid-template-columns: 1fr;
  }

  .pn-btn.pn-next {
    text-align: left;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    padding: 48px 0 32px;
  }

  .footer-bottom-inner {
    flex-direction: column;
    gap: 8px;
  }

  .back-top-btn {
    right: 16px;
    bottom: 16px;
    width: 40px;
    height: 40px;
  }
}

@media (max-width: 520px) {
  .brand-name {
    font-size: 14px;
  }

  .footer-top {
    grid-template-columns: 1fr;
  }
}

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

  .related-card:hover,
  .pn-btn:hover,
  .related-card:hover .related-cover img {
    transform: none;
  }
}