/* roulang page: index */
:root{
  --color-primary:#2E6EE5;
  --color-primary-dark:#2456C0;
  --color-primary-light:#F0F5FF;
  --color-accent:#00A6A0;
  --color-bg:#F5F7FB;
  --color-card:#FFFFFF;
  --color-text:#1F2A3D;
  --color-text-secondary:#5A6B8C;
  --color-text-disabled:#B0B9C8;
  --color-border:#E4EAF2;
  --color-success:#16A34A;
  --color-error:#DC2626;
  --color-warning:#D97706;
  --color-footer-bg:#101B2E;
  --color-footer-text:#9AA7BD;
  --radius-card:12px;
  --radius-btn:8px;
  --radius-input:8px;
  --radius-img:12px;
  --radius-tag:999px;
  --shadow-sm:0 2px 8px rgba(31,42,61,.06);
  --shadow-md:0 8px 24px rgba(31,42,61,.10);
  --shadow-lg:0 12px 32px rgba(31,42,61,.14);
  --transition:.3s ease;
  --container-max:1200px;
  --header-height:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--color-text);
  background:var(--color-bg);
  -webkit-font-smoothing:antialiased;
}
a{color:var(--color-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--color-primary-dark)}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
button{font-family:inherit;cursor:pointer;border:none;background:none;padding:0}
input,textarea{font-family:inherit;font-size:16px}
.container{max-width:var(--container-max);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-label{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--color-primary);background:var(--color-primary-light);padding:6px 18px;border-radius:var(--radius-tag);letter-spacing:.5px}
.section-title{font-size:32px;font-weight:600;margin:20px 0 16px;line-height:1.3;color:var(--color-text)}
.section-subtitle{font-size:16px;color:var(--color-text-secondary);max-width:720px;margin-bottom:0}
.section-head{margin-bottom:48px}
.text-center{text-align:center}
.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--color-primary);color:#fff;font-size:16px;font-weight:600;padding:12px 28px;border-radius:var(--radius-btn);border:none;transition:all .3s ease;box-shadow:none}
.btn-primary:hover{background:var(--color-primary-dark);color:#fff;box-shadow:var(--shadow-md)}
.btn-primary:active{transform:translateY(1px)}
.btn-primary:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(46,110,229,.20)}
.btn-secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:transparent;color:var(--color-primary);font-size:16px;font-weight:600;padding:12px 28px;border-radius:var(--radius-btn);border:1px solid var(--color-primary);transition:all .3s ease}
.btn-secondary:hover{background:var(--color-primary-light);color:var(--color-primary-dark)}
.btn-secondary:active{transform:translateY(1px)}
.btn-secondary:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(46,110,229,.20)}
.btn-accent{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--color-accent);color:#fff;font-size:16px;font-weight:600;padding:12px 28px;border-radius:var(--radius-btn);border:none;transition:all .3s ease}
.btn-accent:hover{background:#008B87;color:#fff;box-shadow:var(--shadow-md)}
.btn-accent:active{transform:translateY(1px)}
.btn-accent:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(0,166,160,.20)}
.btn-block{width:100%}
.btn[disabled]{background:var(--color-text-disabled);cursor:not-allowed;box-shadow:none;color:#fff}
/* header */
.header{position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--header-height);background:#fff;border-bottom:1px solid rgba(31,42,61,.06);box-shadow:0 1px 4px rgba(31,42,61,.04)}
.header-inner{max-width:var(--container-max);height:100%;margin:0 auto;padding:0 24px;display:flex;align-items:center;gap:24px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo svg{width:32px;height:32px}
.logo-text{font-size:22px;font-weight:700;color:var(--color-text);letter-spacing:.5px}
.logo-text span{color:var(--color-primary)}
.nav-main{display:flex;align-items:center;gap:8px;margin-left:24px;flex:1}
.nav-main a.nav-link{display:inline-flex;align-items:center;padding:8px 16px;font-size:15px;font-weight:500;color:var(--color-text-secondary);border-radius:8px;position:relative;transition:color .2s}
.nav-main a.nav-link:hover{color:var(--color-primary);background:var(--color-primary-light)}
.nav-main a.nav-link.active{color:var(--color-primary);font-weight:600}
.nav-main a.nav-link.active::after{content:"";position:absolute;left:16px;right:16px;bottom:-14px;height:4px;background:var(--color-primary);border-radius:4px}
.header-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{position:relative;width:220px}
.search-box input{width:100%;height:40px;padding:0 40px 0 14px;border:1px solid var(--color-border);border-radius:var(--radius-input);font-size:14px;background:#F8FAFC;transition:border .2s,box-shadow .2s}
.search-box input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(46,110,229,.15);background:#fff}
.search-box .search-icon{position:absolute;right:12px;top:50%;transform:translateY(-50%);color:var(--color-text-disabled);pointer-events:none}
.login-btn{display:inline-flex;align-items:center;padding:8px 14px;font-size:14px;font-weight:500;color:var(--color-text-secondary);border-radius:8px;transition:all .2s}
.login-btn:hover{color:var(--color-primary);background:var(--color-primary-light)}
.header-cta{height:40px;padding:0 20px;font-size:14px}
.nav-toggle{display:none;width:40px;height:40px;align-items:center;justify-content:center;border-radius:8px;cursor:pointer}
.nav-toggle:hover{background:var(--color-primary-light)}
.nav-toggle svg{width:22px;height:22px;color:var(--color-text)}
/* mobile drawer */
.mobile-drawer{position:fixed;top:0;left:0;bottom:0;width:280px;background:#fff;z-index:1200;box-shadow:var(--shadow-lg);transform:translateX(-100%);transition:transform .3s ease;display:flex;flex-direction:column;padding:20px}
.mobile-drawer.open{transform:translateX(0)}
.mobile-drawer-backdrop{position:fixed;inset:0;background:rgba(16,27,46,.5);z-index:1199;opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s}
.mobile-drawer-backdrop.active{opacity:1;visibility:visible}
.mobile-drawer .drawer-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.mobile-drawer .drawer-header .logo-text{font-size:18px}
.drawer-close{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:8px;cursor:pointer}
.drawer-close:hover{background:var(--color-primary-light)}
.mobile-drawer nav{display:flex;flex-direction:column;gap:6px;flex:1}
.mobile-drawer nav a{padding:12px 14px;font-size:16px;font-weight:500;color:var(--color-text-secondary);border-radius:8px;transition:all .2s}
.mobile-drawer nav a:hover{background:var(--color-primary-light);color:var(--color-primary)}
.mobile-drawer nav a.active{color:var(--color-primary);background:var(--color-primary-light);font-weight:600}
.drawer-footer{padding-top:16px;border-top:1px solid var(--color-border);display:flex;flex-direction:column;gap:8px}
/* hero */
.hero{position:relative;padding:140px 0 100px;margin-top:var(--header-height);background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;background-color:var(--color-primary-light)}
.hero::before{content:"";position:absolute;inset:0;background:rgba(46,110,229,.28);z-index:1}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:32px 32px;z-index:1}
.hero-inner{position:relative;z-index:2;display:flex;gap:64px;align-items:center}
.hero-content{flex:1}
.hero .hero-h1{font-size:44px;font-weight:600;line-height:1.2;margin:0 0 16px;color:#FFFFFF;text-shadow:0 2px 8px rgba(16,27,46,.4)}
.hero .hero-sub{font-size:18px;line-height:1.6;color:rgba(255,255,255,.95);max-width:520px;margin:0 0 32px;text-shadow:0 1px 4px rgba(16,27,46,.3)}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:48px}
.hero-stats{display:flex;gap:56px;align-items:center;flex-wrap:wrap}
.hero-stat{display:flex;flex-direction:column}
.hero-stat .num{font-family:"Inter",-apple-system,sans-serif;font-size:36px;font-weight:700;color:var(--color-accent);line-height:1.1}
.hero-stat .label{font-size:14px;color:rgba(255,255,255,.85);margin-top:4px}
/* timeline */
.timeline-section{background:var(--color-bg)}
.timeline{position:relative;max-width:960px;margin:0 auto;padding:20px 0}
.timeline::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;background:var(--color-primary);transform:translateX(-50%)}
.timeline-item{position:relative;width:50%;padding:0 40px;margin-bottom:24px}
.timeline-item:nth-child(odd){left:0}
.timeline-item:nth-child(even){left:50%}
.timeline-item:nth-child(odd) .timeline-card{text-align:right}
.timeline-item:nth-child(even) .timeline-card{text-align:left}
.timeline-item::before{content:"";position:absolute;top:32px;width:14px;height:14px;border-radius:50%;background:var(--color-accent);border:3px solid #fff;box-shadow:0 0 0 2px var(--color-accent);z-index:2}
.timeline-item:nth-child(odd)::before{right:-8px}
.timeline-item:nth-child(even)::before{left:-6px}
.timeline-card{display:inline-block;width:100%;max-width:400px;background:var(--color-card);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);padding:24px;transition:box-shadow .3s ease,transform .3s ease}
.timeline-card:hover{box-shadow:var(--shadow-md)}
.timeline-card .tl-year{font-size:14px;font-weight:600;color:var(--color-primary);margin-bottom:8px}
.timeline-card .tl-title{font-size:18px;font-weight:600;margin:0 0 8px}
.timeline-card .tl-desc{font-size:14px;color:var(--color-text-secondary);line-height:1.6;margin:0}
/* highlights */
.highlights-section{background:var(--color-card)}
.highlights-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.highlight-card{background:var(--color-card);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);transition:all .3s ease}
.highlight-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.highlight-card:hover .hl-img img{transform:scale(1.02)}
.highlight-card .hl-img{aspect-ratio:16/9;overflow:hidden}
.highlight-card .hl-img img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.highlight-card .hl-body{padding:24px}
.highlight-card .hl-title{font-size:20px;font-weight:600;margin:0 0 8px}
.highlight-card .hl-desc{font-size:14px;color:var(--color-text-secondary);line-height:1.6;margin:0}
/* pricing */
.pricing-section{background:var(--color-bg)}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.pricing-card{position:relative;background:var(--color-card);border:1px solid var(--color-border);border-radius:var(--radius-card);padding:32px 28px;transition:all .3s ease}
.pricing-card.recommended{border:2px solid var(--color-primary);background:var(--color-primary-light)}
.pricing-card.recommended .ribbon{position:absolute;top:-1px;right:24px;background:var(--color-primary);color:#fff;font-size:13px;font-weight:600;padding:6px 16px;border-radius:0 0 8px 8px}
.pricing-card:hover{box-shadow:var(--shadow-md)}
.pricing-plan-name{font-size:20px;font-weight:600;margin:0 0 4px}
.pricing-audience{font-size:14px;color:var(--color-text-secondary);margin-bottom:20px}
.pricing-price{font-size:36px;font-weight:700;color:var(--color-primary);margin-bottom:20px}
.pricing-price .unit{font-size:14px;font-weight:400;color:var(--color-text-secondary)}
.pricing-features{list-style:none;padding:0;margin:0 0 28px}
.pricing-features li{display:flex;align-items:flex-start;gap:10px;font-size:15px;padding:6px 0;color:var(--color-text)}
.pricing-features li svg{flex-shrink:0;width:18px;height:18px;color:var(--color-accent);margin-top:3px}
/* CTA */
.cta-section{background:var(--color-footer-bg);position:relative;overflow:hidden}
.cta-section::before{content:"";position:absolute;left:0;right:0;top:0;bottom:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;opacity:.12}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.cta-title{font-size:30px;font-weight:600;color:#fff;margin:0 0 12px}
.cta-desc{font-size:15px;color:var(--color-footer-text);margin:0 0 32px;max-width:420px}
.cta-form{background:var(--color-card);border-radius:16px;padding:32px;box-shadow:var(--shadow-lg)}
.cta-form .form-group{margin-bottom:16px}
.cta-form label{display:block;font-size:14px;font-weight:500;margin-bottom:6px;color:var(--color-text)}
.cta-form input,.cta-form textarea{width:100%;height:46px;border:1px solid var(--color-border);border-radius:var(--radius-input);padding:0 14px;font-size:15px;background:#F8FAFC;transition:border .2s,box-shadow .2s}
.cta-form textarea{height:88px;padding:12px 14px;resize:vertical}
.cta-form input:focus,.cta-form textarea:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(46,110,229,.15);background:#fff}
.cta-form .btn-primary{width:100%;margin-top:8px}
.cta-privacy{font-size:12px;color:var(--color-text-disabled);text-align:center;margin-top:12px}
/* FAQ */
.faq-section{background:var(--color-bg)}
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:var(--color-card);border:1px solid var(--color-border);border-radius:var(--radius-card);margin-bottom:12px;overflow:hidden}
.faq-item.open{border-color:var(--color-primary)}
.faq-question{display:flex;align-items:center;gap:14px;padding:20px 24px;cursor:pointer;font-size:16px;font-weight:600;color:var(--color-text);transition:background .2s}
.faq-question:hover{background:var(--color-primary-light)}
.faq-question .q-icon{color:var(--color-primary);flex-shrink:0;display:flex;align-items:center}
.faq-arrow{margin-left:auto;transition:transform .3s ease}
.faq-item.open .faq-arrow{transform:rotate(180deg)}
.faq-answer{padding:0 24px 20px 58px;font-size:15px;color:var(--color-text-secondary);line-height:1.7;display:none}
.faq-item.open .faq-answer{display:block;padding-top:4px}
/* news */
.news-section{background:var(--color-card)}
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:32px}
.news-card{display:flex;flex-direction:column;border-radius:var(--radius-card);overflow:hidden;background:var(--color-card);border:1px solid var(--color-border);transition:all .3s ease}
.news-card:hover{box-shadow:var(--shadow-md);border-color:transparent}
.news-thumb{aspect-ratio:16/9;overflow:hidden}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:24px;display:flex;flex-direction:column;flex:1}
.news-meta{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.news-cat{font-size:13px;font-weight:600;color:var(--color-primary);background:var(--color-primary-light);padding:4px 14px;border-radius:var(--radius-tag)}
.news-time{font-size:13px;color:var(--color-text-disabled)}
.news-title{font-size:20px;font-weight:600;margin:0 0 8px;line-height:1.4}
.news-title a{color:var(--color-text)}
.news-title a:hover{color:var(--color-primary)}
.news-excerpt{font-size:14px;color:var(--color-text-secondary);line-height:1.6;margin:0 0 16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-more{margin-top:auto;font-size:14px;font-weight:500;color:var(--color-primary);display:inline-flex;align-items:center;gap:6px;transition:gap .2s}
.news-more:hover{gap:10px}
.empty-state{grid-column:1/-1;text-align:center;padding:48px 0;color:var(--color-text-disabled)}
.empty-state .empty-icon{width:48px;height:48px;margin:0 auto 12px;background:var(--color-bg);border-radius:50%;display:flex;align-items:center;justify-content:center}
.empty-state p{margin:0;font-size:15px}
/* footer */
.footer{background:var(--color-footer-bg);color:var(--color-footer-text);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr 1fr;gap:48px;padding-bottom:48px}
.footer-brand .logo-text{color:#fff;font-size:20px}
.footer-brand p{font-size:14px;line-height:1.7;margin-top:12px;max-width:280px}
.footer-col h4{color:#fff;font-size:16px;font-weight:600;margin:0 0 16px}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{color:var(--color-footer-text);font-size:14px;transition:color .2s}
.footer-col ul a:hover{color:#fff}
.footer-col .contact-item{display:flex;align-items:flex-start;gap:10px;font-size:14px;margin-bottom:12px}
.footer-col .contact-item svg{flex-shrink:0;color:var(--color-accent);margin-top:3px}
.footer-qr{width:120px;height:120px;background:rgba(255,255,255,.08);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:13px;color:rgba(255,255,255,.4);border:1px dashed rgba(255,255,255,.2)}
.footer-bottom{text-align:center;padding:20px 0;border-top:1px solid rgba(255,255,255,.1);font-size:14px;color:rgba(154,167,189,.8)}
/* media queries */
@media(max-width:1024px){
  .hero-inner{flex-direction:column;gap:32px}
  .hero-content{width:100%}
  .highlights-grid{grid-template-columns:repeat(2,1fr)}
  .pricing-grid{grid-template-columns:1fr 1fr}
  .pricing-card:last-child{grid-column:1/-1}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .timeline::before{left:16px;transform:none}
  .timeline-item{width:100%!important;left:0!important;padding:0 0 0 48px!important;text-align:left!important}
  .timeline-item::before{left:9px!important;right:auto!important}
  .timeline-card{text-align:left!important;max-width:100%}
  .nav-main{display:none}
  .header .search-box{display:none}
  .header .login-btn{display:none}
  .header .header-cta{margin-left:auto}
  .nav-toggle{display:flex}
}
@media(max-width:768px){
  .section{padding:64px 0}
  .hero{padding:100px 0 80px}
  .hero-h1{font-size:36px!important}
  .hero-sub{font-size:16px!important}
  .hero-stats{gap:24px}
  .highlights-grid{grid-template-columns:1fr}
  .pricing-grid{grid-template-columns:1fr}
  .pricing-card:last-child{grid-column:auto}
  .news-grid{grid-template-columns:1fr}
  .cta-form{padding:20px}
  .footer-grid{grid-template-columns:1fr}
  .container{padding:0 16px}
  .section-title{font-size:26px}
  .header-inner{padding:0 16px}
}
@media(max-width:520px){
  .hero-btns{flex-direction:column}
  .hero-btns .btn-primary,.hero-btns .btn-secondary{width:100%}
  .timeline-item{padding-left:36px!important}
  .timeline-card{padding:16px}
}

/* roulang page: article */
:root{
  --color-primary:#2E6EE5;
  --color-primary-dark:#2456C0;
  --color-primary-light:#F0F5FF;
  --color-accent:#00A6A0;
  --color-bg:#F5F7FB;
  --color-card:#FFFFFF;
  --color-text:#1F2A3D;
  --color-text-secondary:#5A6B8C;
  --color-text-placeholder:#B0B9C8;
  --color-border:#E4EAF2;
  --color-footer-bg:#101B2E;
  --color-footer-text:#9AA7BD;
  --radius-card:12px;
  --radius-btn:8px;
  --radius-input:8px;
  --shadow-static:0 2px 8px rgba(31,42,61,.06);
  --shadow-hover:0 8px 24px rgba(31,42,61,.10);
  --shadow-float:0 12px 32px rgba(31,42,61,.14);
  --font-sans:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-sans);
  background:var(--color-bg);
  color:var(--color-text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--color-primary);color:#fff;
  padding:12px 28px;border-radius:var(--radius-btn);
  font-size:16px;font-weight:600;border:none;cursor:pointer;
  transition:background .25s ease,box-shadow .25s ease,transform .15s ease;
  text-decoration:none;
}
.btn-primary:hover{background:var(--color-primary-dark);box-shadow:var(--shadow-hover)}
.btn-primary:active{transform:translateY(1px)}
.btn-primary:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(46,110,229,.20)}
.btn-secondary{
  display:inline-flex;align-items:center;justify-content:center;
  background:transparent;color:var(--color-primary);
  padding:12px 28px;border-radius:var(--radius-btn);
  font-size:16px;font-weight:600;border:1px solid var(--color-primary);
  cursor:pointer;transition:background .25s ease,box-shadow .25s ease,transform .15s ease;
  text-decoration:none;
}
.btn-secondary:hover{background:var(--color-primary-light)}
.btn-secondary:active{transform:translateY(1px)}
.btn-secondary:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(46,110,229,.20)}

/* Header */
.header{
  position:sticky;top:0;z-index:100;
  background:var(--color-card);
  box-shadow:0 1px 4px rgba(31,42,61,.06);
}
.header-inner{
  max-width:1200px;margin:0 auto;height:68px;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 24px;gap:24px;
}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo svg{width:36px;height:36px;flex-shrink:0}
.logo-text{
  font-size:22px;font-weight:700;color:var(--color-text);
  letter-spacing:.5px;white-space:nowrap;
}
.logo-text span{color:var(--color-primary)}
.nav-main{display:flex;align-items:center;gap:8px}
.nav-link{
  position:relative;
  padding:8px 14px;font-size:15px;font-weight:500;
  color:var(--color-text-secondary);
  border-radius:6px;transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--color-primary);background:var(--color-primary-light)}
.nav-link.active{color:var(--color-primary);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-2px;
  height:4px;border-radius:4px;background:var(--color-primary);
}
.nav-link:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(46,110,229,.20)}
.header-right{display:flex;align-items:center;gap:12px}
.search-box{
  position:relative;display:flex;align-items:center;
  width:220px;height:40px;
}
.search-box input{
  width:100%;height:100%;padding:0 12px 0 38px;
  border:1px solid var(--color-border);border-radius:var(--radius-input);
  font-size:14px;color:var(--color-text);background:var(--color-bg);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search-box input::placeholder{color:var(--color-text-placeholder)}
.search-box input:focus{
  outline:none;border-color:var(--color-primary);
  box-shadow:0 0 0 3px rgba(46,110,229,.15);background:#fff;
}
.search-icon{
  position:absolute;left:12px;top:50%;transform:translateY(-50%);
  color:var(--color-text-placeholder);display:flex;align-items:center;
  pointer-events:none;
}
.login-btn{
  font-size:15px;font-weight:500;color:var(--color-text-secondary);
  padding:8px 10px;border-radius:6px;transition:color .2s ease,background .2s ease;
}
.login-btn:hover{color:var(--color-primary);background:var(--color-primary-light)}
.login-btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(46,110,229,.20)}
.header-cta{
  background:var(--color-accent);
  padding:10px 20px;font-size:14px;font-weight:600;
}
.header-cta:hover{background:var(--color-accent);filter:brightness(.92)}
.nav-toggle{
  display:none;background:transparent;border:none;
  width:42px;height:42px;border-radius:8px;
  align-items:center;justify-content:center;
  color:var(--color-text);cursor:pointer;transition:background .2s ease;
}
.nav-toggle:hover{background:var(--color-bg)}
.nav-toggle:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(46,110,229,.20)}
@media(max-width:768px){
  .nav-main{
    position:fixed;top:68px;left:0;right:0;
    background:var(--color-card);
    flex-direction:column;align-items:flex-start;
    padding:16px 24px 24px;
    box-shadow:var(--shadow-hover);
    display:none;gap:4px;
  }
  .nav-main.open{display:flex}
  .nav-link{width:100%;padding:12px 14px}
  .nav-link.active::after{left:14px;right:auto;width:32px}
  .header-right{gap:8px}
  .search-box{display:none}
  .login-btn{display:none}
  .nav-toggle{display:inline-flex}
  .header-cta{padding:8px 14px;font-size:13px}
}
@media(max-width:520px){
  .header-inner{padding:0 16px;gap:12px}
  .logo svg{width:32px;height:32px}
  .logo-text{font-size:19px}
  .header-cta{display:none}
  .nav-toggle{display:inline-flex}
}

/* Breadcrumb */
.breadcrumb-wrap{
  background:var(--color-card);
  border-bottom:1px solid var(--color-border);
  padding:16px 0;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:14px;color:var(--color-text-secondary);
  flex-wrap:wrap;
}
.breadcrumb a{transition:color .2s ease}
.breadcrumb a:hover{color:var(--color-primary)}
.breadcrumb .sep{color:var(--color-text-placeholder)}
.breadcrumb .current{color:var(--color-text);font-weight:500;max-width:360px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* Article */
.article-section{
  padding:64px 0 80px;
}
.article-card{
  max-width:860px;margin:0 auto;
  background:var(--color-card);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-static);
  padding:48px;
}
.article-title{
  font-size:32px;font-weight:600;line-height:1.4;
  color:var(--color-text);margin-bottom:20px;
}
.article-meta{
  display:flex;align-items:center;gap:20px;flex-wrap:wrap;
  padding-bottom:24px;border-bottom:1px solid var(--color-border);
  font-size:14px;color:var(--color-text-secondary);
}
.article-meta .meta-cat{
  color:var(--color-primary);
  background:var(--color-primary-light);
  padding:2px 12px;border-radius:999px;font-weight:500;
}
.article-content{
  padding-top:32px;
  font-size:16px;line-height:1.8;color:var(--color-text);
  word-break:break-word;
}
.article-content p{margin-bottom:24px}
.article-content h2{font-size:24px;font-weight:600;margin:40px 0 16px}
.article-content h3{font-size:20px;font-weight:600;margin:32px 0 12px}
.article-content h4{font-size:17px;font-weight:600;margin:24px 0 10px}
.article-content img{border-radius:12px;margin:24px 0}
.article-content ul,.article-content ol{margin:16px 0 24px;padding-left:24px}
.article-content li{margin-bottom:8px}
.article-content blockquote{
  border-left:4px solid var(--color-primary);
  background:var(--color-primary-light);
  padding:16px 20px;margin:24px 0;border-radius:0 8px 8px 0;
  color:var(--color-text-secondary);
}
.article-content a{color:var(--color-primary);text-decoration:underline}
.article-content a:hover{color:var(--color-primary-dark)}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0}
.article-content th,.article-content td{border:1px solid var(--color-border);padding:12px;text-align:left}
.article-content th{background:var(--color-primary-light);font-weight:600}
.article-content code{background:#f0f2f5;padding:2px 8px;border-radius:4px;font-size:14px}
.not-found{
  max-width:600px;margin:0 auto;text-align:center;
  background:var(--color-card);border-radius:var(--radius-card);
  box-shadow:var(--shadow-static);padding:80px 40px;
}
.not-found .nf-icon{
  width:72px;height:72px;margin:0 auto 24px;
  border-radius:50%;background:var(--color-primary-light);
  display:flex;align-items:center;justify-content:center;
  color:var(--color-primary);
}
.not-found-title{font-size:22px;font-weight:600;margin-bottom:12px}
.not-found-desc{color:var(--color-text-secondary);font-size:15px;margin-bottom:32px}
@media(max-width:768px){
  .article-section{padding:40px 0 56px}
  .article-card{padding:32px 20px;border-radius:8px}
  .article-title{font-size:24px}
  .article-meta{gap:12px;font-size:13px}
}
@media(max-width:520px){
  .article-title{font-size:22px}
  .article-content p{margin-bottom:20px}
}

/* Related */
.related-section{padding:72px 0;background:var(--color-card);border-top:1px solid var(--color-border)}
.section-header{max-width:1200px;margin:0 auto 40px}
.section-header h2{font-size:28px;font-weight:600;margin-bottom:8px;text-align:center}
.section-header p{color:var(--color-text-secondary);font-size:15px;text-align:center}
.related-grid{
  max-width:1200px;margin:0 auto;
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.related-card{
  background:var(--color-bg);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-static);
  transition:transform .3s ease,box-shadow .3s ease;
}
.related-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.related-thumb{display:block;overflow:hidden;aspect-ratio:16/9}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.related-card:hover .related-thumb img{transform:scale(1.02)}
.related-info{padding:20px}
.related-meta{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.related-tag{
  font-size:13px;font-weight:500;
  color:var(--color-primary);background:var(--color-primary-light);
  padding:2px 10px;border-radius:999px;
}
.related-date{font-size:13px;color:var(--color-text-placeholder)}
.related-info h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:8px}
.related-info h3 a{transition:color .2s ease}
.related-info h3 a:hover{color:var(--color-primary)}
.related-excerpt{
  font-size:14px;color:var(--color-text-secondary);
  line-height:1.6;display:-webkit-box;
  -webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
@media(max-width:1024px){
  .related-grid{grid-template-columns:repeat(2,1fr);padding:0 16px}
}
@media(max-width:768px){
  .related-section{padding:56px 0}
  .related-grid{grid-template-columns:1fr}
  .section-header h2{font-size:24px}
}

/* Metrics */
.metrics-section{
  background:var(--color-footer-bg);
  padding:64px 0;color:#fff;
}
.metrics-grid{
  max-width:1200px;margin:0 auto;
  display:grid;grid-template-columns:repeat(4,1fr);gap:32px;
}
.metric-item{text-align:center;padding:20px}
.metric-num{
  font-size:40px;font-weight:700;line-height:1.2;
  color:var(--color-accent);letter-spacing:-.5px;
}
.metric-label{margin-top:8px;font-size:15px;color:#B8C4D9}
@media(max-width:1024px){
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:24px}
}
@media(max-width:520px){
  .metrics-section{padding:48px 0}
  .metric-num{font-size:32px}
}

/* FAQ */
.faq-section{padding:72px 0;background:var(--color-bg)}
.faq-list{max-width:800px;margin:0 auto}
.faq-item{
  background:var(--color-card);
  border:1px solid var(--color-border);
  border-radius:var(--radius-card);
  margin-bottom:12px;
  box-shadow:var(--shadow-static);
  overflow:hidden;
  transition:box-shadow .3s ease;
}
.faq-item.active{box-shadow:var(--shadow-hover)}
.faq-question{
  display:flex;align-items:center;gap:12px;
  padding:20px 24px;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--color-text);
  transition:background .2s ease;
}
.faq-question:hover{background:var(--color-primary-light)}
.faq-q-icon{
  width:28px;height:28px;flex-shrink:0;
  border-radius:50%;background:var(--color-primary-light);
  color:var(--color-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;
}
.faq-arrow{
  margin-left:auto;width:18px;height:18px;
  color:var(--color-text-secondary);
  transition:transform .3s ease;flex-shrink:0;
}
.faq-item.active .faq-arrow{transform:rotate(180deg)}
.faq-answer{
  max-height:0;overflow:hidden;
  transition:max-height .35s ease;
}
.faq-item.active .faq-answer{max-height:400px}
.faq-answer p{
  padding:0 24px 20px 64px;
  font-size:15px;line-height:1.6;color:var(--color-text-secondary);
  background:var(--color-card);
}
@media(max-width:520px){
  .faq-section{padding:56px 0}
  .faq-question{padding:16px;font-size:15px}
  .faq-answer p{padding:0 16px 16px 52px}
}

/* CTA */
.cta-section{
  background:var(--color-footer-bg);
  background-image:linear-gradient(135deg,#101B2E 0%,#17305A 100%);
  padding:80px 0;
}
.cta-inner{
  max-width:1200px;margin:0 auto;
  display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;
}
.cta-left h2{
  font-size:30px;font-weight:600;color:#fff;line-height:1.4;
  margin-bottom:16px;
}
.cta-left p{
  font-size:15px;color:var(--color-footer-text);line-height:1.7;
}
.cta-form{
  background:#fff;border-radius:var(--radius-card);
  padding:32px;
  box-shadow:var(--shadow-float);
}
.cta-form label{
  display:block;font-size:14px;font-weight:500;
  color:var(--color-text);margin-bottom:6px;
}
.cta-form input,.cta-form textarea{
  width:100%;height:46px;padding:0 14px;
  border:1px solid var(--color-border);
  border-radius:var(--radius-input);
  font-size:15px;color:var(--color-text);
  background:var(--color-bg);
  margin-bottom:20px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.cta-form textarea{height:90px;padding:12px 14px;resize:vertical}
.cta-form input::placeholder,.cta-form textarea::placeholder{color:var(--color-text-placeholder)}
.cta-form input:focus,.cta-form textarea:focus{
  outline:none;border-color:var(--color-primary);
  box-shadow:0 0 0 3px rgba(46,110,229,.15);background:#fff;
}
.cta-form .btn-primary{width:100%;margin-top:4px}
.cta-form .btn-primary:disabled{background:var(--color-text-placeholder);box-shadow:none;cursor:not-allowed}
.form-privacy{
  font-size:12px;color:var(--color-text-placeholder);
  text-align:center;margin-top:12px;
}
@media(max-width:1024px){
  .cta-inner{grid-template-columns:1fr;gap:40px;max-width:640px}
  .cta-left h2{font-size:26px}
}
@media(max-width:520px){
  .cta-section{padding:56px 0}
  .cta-form{padding:24px 16px}
}

/* Footer */
.footer{
  background:var(--color-footer-bg);
  color:var(--color-footer-text);
  padding:64px 0 0;
  font-size:14px;
}
.footer-grid{
  max-width:1200px;margin:0 auto;
  display:grid;grid-template-columns:2fr 1fr 1.4fr 1fr;gap:48px;
  padding:0 24px 48px;
}
.footer-brand .logo-text{color:#fff;font-size:24px;font-weight:700;margin-bottom:16px;display:block}
.footer-brand .logo-text span{color:var(--color-primary)}
.footer-brand p{line-height:1.7;max-width:280px}
.footer-col h4{
  color:#fff;font-size:16px;font-weight:600;
  margin-bottom:20px;
}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:12px}
.footer-col a{color:var(--color-footer-text);transition:color .2s ease}
.footer-col a:hover{color:#fff}
.contact-item{display:flex;align-items:center;gap:8px}
.contact-item svg{color:var(--color-accent);flex-shrink:0}
.footer-qr{
  width:120px;height:120px;
  background:rgba(255,255,255,.08);
  border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;color:var(--color-footer-text);
  border:1px solid rgba(255,255,255,.12);
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0;text-align:center;font-size:14px;
  color:var(--color-footer-text);
}
@media(max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:520px){
  .footer-grid{grid-template-columns:1fr;padding-bottom:32px}
  .footer-bottom{padding:16px 16px}
}

/* roulang page: category1 */
:root {
  --color-primary: #2E6EE5;
  --color-primary-dark: #2456C0;
  --color-primary-light: #F0F5FF;
  --color-accent: #00A6A0;
  --color-bg: #F5F7FB;
  --color-card: #FFFFFF;
  --color-text: #1F2A3D;
  --color-text-secondary: #5A6B8C;
  --color-text-disabled: #B0B9C8;
  --color-border: #E4EAF2;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-input: 8px;
  --radius-tag: 999px;
  --shadow-card: 0 2px 8px rgba(31,42,61,.06);
  --shadow-hover: 0 8px 24px rgba(31,42,61,.10);
  --shadow-float: 0 12px 32px rgba(31,42,61,.14);
  --font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --container-width: 1200px;
  --section-space: 96px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color .2s ease;
}

a:hover {
  color: var(--color-primary-dark);
}

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

button, input, textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}

ul, ol {
  list-style: none;
}

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

/* ---------- Buttons ---------- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--color-primary);
  color: #fff !important;
  font-size: 16px;
  font-weight: 600;
  line-height: 1;
  padding: 14px 28px;
  border-radius: var(--radius-btn);
  cursor: pointer;
  transition: background .25s ease, box-shadow .25s ease, transform .15s ease;
  border: none;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  box-shadow: var(--shadow-hover);
  color: #fff !important;
}

.btn-primary:active {
  transform: translateY(1px);
}

.btn-primary:focus-visible {
  box-shadow: 0 0 0 3px rgba(46,110,229,.20);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  color: var(--color-primary) !important;
  font-size: 16px;
  font-weight: 600;
  line-height: 1;
  padding: 13px 27px;
  border-radius: var(--radius-btn);
  border: 1px solid var(--color-primary);
  cursor: pointer;
  transition: background .25s ease, box-shadow .25s ease, transform .15s ease;
}

.btn-secondary:hover {
  background: var(--color-primary-light);
  box-shadow: var(--shadow-card);
  color: var(--color-primary) !important;
}

.btn-secondary:active {
  transform: translateY(1px);
}

.btn-secondary:focus-visible {
  box-shadow: 0 0 0 3px rgba(46,110,229,.20);
}

/* ---------- Header / Nav ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 68px;
  background: #fff;
  box-shadow: 0 1px 4px rgba(31,42,61,.06);
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  height: 68px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

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

.logo svg {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  box-shadow: var(--shadow-card);
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -.5px;
}

.logo-text span {
  color: var(--color-primary);
}

.nav-main {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  justify-content: center;
}

.nav-link {
  display: inline-block;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-btn);
  position: relative;
  transition: color .2s ease, background .2s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 0;
  height: 4px;
  border-radius: 999px;
  background: var(--color-primary);
  opacity: 0;
  transform: scaleX(.4);
  transition: opacity .2s ease, transform .2s ease;
}

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

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

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

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

.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-box input {
  width: 220px;
  height: 40px;
  padding: 0 14px 0 36px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-input);
  background: var(--color-bg);
  font-size: 14px;
  color: var(--color-text);
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}

.search-box input::placeholder {
  color: var(--color-text-disabled);
}

.search-box input:focus {
  border-color: var(--color-primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(46,110,229,.15);
}

.search-icon {
  position: absolute;
  left: 12px;
  display: flex;
  color: var(--color-text-disabled);
  pointer-events: none;
}

.login-btn {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: 8px 4px;
  transition: color .2s ease;
}

.login-btn:hover {
  color: var(--color-primary);
}

.header-cta {
  padding: 11px 20px;
  font-size: 14px;
  background: var(--color-accent);
}

.header-cta:hover {
  background: #008f8a;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-btn);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--color-text);
  transition: background .2s ease;
}

.nav-toggle:hover {
  background: var(--color-primary-light);
}

/* ---------- Page Hero ---------- */
.page-hero {
  margin-top: 68px;
  padding: 110px 0 100px;
  background-image: linear-gradient(rgba(31,42,61,.42), rgba(31,42,61,.42)), url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  color: #fff;
  text-align: center;
}

.page-hero h1 {
  font-size: 44px;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -1px;
}

.page-hero .subtitle {
  margin-top: 18px;
  font-size: 18px;
  color: rgba(255,255,255,.88);
  font-weight: 400;
}

.hero-ctas {
  margin-top: 36px;
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-ctas .btn-secondary {
  border-color: rgba(255,255,255,.7);
  color: #fff !important;
}

.hero-ctas .btn-secondary:hover {
  background: rgba(255,255,255,.14);
  color: #fff !important;
}

/* ---------- Section Base ---------- */
.section {
  padding: var(--section-space) 0;
}

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

.section-head .tag {
  display: inline-block;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: var(--radius-tag);
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: 32px;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -.8px;
  color: var(--color-text);
}

.section-head p {
  max-width: 640px;
  margin: 14px auto 0;
  font-size: 16px;
  color: var(--color-text-secondary);
}

/* ---------- Split Blocks ---------- */
.split-block {
  padding: 80px 0;
}

.split-block.alt {
  background: #fff;
}

.split-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.split-text .block-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  background: rgba(0,166,160,.08);
  padding: 6px 14px;
  border-radius: var(--radius-tag);
  margin-bottom: 18px;
}

.split-text h2 {
  font-size: 28px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
  margin-bottom: 16px;
}

.split-text p.desc {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.75;
  margin-bottom: 24px;
}

.point-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.point-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  color: var(--color-text);
}

.point-list li::before {
  content: '';
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 2px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2300A6A0' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E");
  background-size: contain;
}

.split-image {
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-float);
  background: #fff;
}

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

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

.feature-card {
  background: var(--color-card);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  box-shadow: var(--shadow-card);
  transition: box-shadow .3s ease, transform .3s ease;
}

.feature-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  color: var(--color-primary);
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ---------- Scenario Cards ---------- */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.scenario-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  display: flex;
  gap: 18px;
  align-items: flex-start;
  transition: box-shadow .3s ease, border-color .3s ease, transform .3s ease;
}

.scenario-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.scenario-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(46,110,229,.08);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.scenario-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.scenario-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.55;
}

/* ---------- Process ---------- */
.process-section {
  background: #fff;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
}

.process-step {
  position: relative;
  text-align: center;
  padding: 0 8px;
}

.process-step::after {
  content: '';
  position: absolute;
  top: 28px;
  left: 60%;
  width: 80%;
  height: 2px;
  background: var(--color-primary-light);
  z-index: 0;
}

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

.step-num {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  position: relative;
  z-index: 1;
  box-shadow: 0 6px 16px rgba(46,110,229,.28);
}

.process-step h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.process-step p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.55;
}

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

.faq-item {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow .25s ease;
}

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

.faq-q {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 22px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  user-select: none;
  transition: color .2s ease;
}

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

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

.faq-arrow {
  margin-left: auto;
  display: flex;
  color: var(--color-text-disabled);
  transition: transform .3s ease, color .2s ease;
  flex-shrink: 0;
}

.faq-item.open .faq-arrow {
  transform: rotate(180deg);
  color: var(--color-primary);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}

.faq-a-inner {
  background: #F8FAFC;
  padding: 20px 22px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--color-text-secondary);
  border-top: 1px solid var(--color-border);
}

/* ---------- CTA / Register ---------- */
.cta-banner {
  background: linear-gradient(180deg, #17325A 0%, #101B2E 100%);
  padding: 80px 0;
}

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

.cta-left h2 {
  font-size: 28px;
  font-weight: 600;
  color: #fff;
  line-height: 1.4;
  margin-bottom: 14px;
}

.cta-left p {
  font-size: 15px;
  color: rgba(255,255,255,.78);
  line-height: 1.7;
}

.cta-form {
  background: #fff;
  border-radius: 16px;
  padding: 32px;
  box-shadow: var(--shadow-float);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  height: 46px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-input);
  padding: 0 14px;
  font-size: 15px;
  color: var(--color-text);
  background: #fff;
  transition: border-color .2s ease, box-shadow .2s ease;
}

.form-group textarea {
  height: auto;
  padding: 12px 14px;
  resize: vertical;
  min-height: 72px;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(46,110,229,.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-disabled);
}

.form-submit {
  width: 100%;
  margin-top: 4px;
}

.form-submit:disabled {
  background: var(--color-text-disabled);
  box-shadow: none;
  cursor: not-allowed;
}

.form-privacy {
  margin-top: 14px;
  font-size: 12px;
  color: var(--color-text-disabled);
  text-align: center;
  line-height: 1.5;
}

/* ---------- Bottom Nav ---------- */
.page-bottom-nav {
  padding: 48px 0;
  text-align: center;
}

.page-bottom-nav a {
  display: inline-block;
  margin: 0 8px;
}

/* ---------- Footer ---------- */
.footer {
  background: #101B2E;
  color: #9AA7BD;
  padding: 70px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer-brand .logo-text {
  font-size: 24px;
  color: #fff;
  margin-bottom: 16px;
  display: block;
}

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

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: #9AA7BD;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
}

.footer-col ul li {
  margin-bottom: 10px;
  font-size: 14px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.footer-col ul li a {
  color: #9AA7BD;
  transition: color .2s ease;
}

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

.contact-item svg {
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--color-accent);
}

.footer-qr {
  width: 120px;
  height: 120px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,.15);
  background: rgba(255,255,255,.06);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: rgba(255,255,255,.5);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 22px 0;
  text-align: center;
  font-size: 14px;
  color: rgba(255,255,255,.55);
}

/* ---------- Mobile Drawer ---------- */
.mobile-drawer {
  display: none;
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 999;
  background: #fff;
  padding: 32px 24px;
  transform: translateY(-100%);
  transition: transform .3s ease;
  overflow-y: auto;
}

.mobile-drawer.open {
  transform: translateY(0);
  display: block;
}

.mobile-drawer .drawer-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mobile-drawer .drawer-nav a {
  font-size: 20px;
  font-weight: 600;
  padding: 14px 0;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}

.mobile-drawer .drawer-nav a.active {
  color: var(--color-primary);
}

.drawer-search {
  margin-top: 24px;
}

.drawer-search input {
  width: 100%;
  height: 44px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-input);
  padding: 0 14px;
  font-size: 15px;
  background: var(--color-bg);
}

.drawer-actions {
  margin-top: 24px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .process-step::after {
    display: none;
  }

  .split-inner {
    gap: 40px;
  }

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

@media (max-width: 768px) {
  :root {
    --section-space: 64px;
  }

  .container,
  .header-inner {
    padding: 0 16px;
  }

  .nav-main {
    display: none;
  }

  .header-right .search-box,
  .header-right .login-btn,
  .header-right .header-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .page-hero {
    padding: 90px 0 80px;
  }

  .page-hero h1 {
    font-size: 32px;
  }

  .page-hero .subtitle {
    font-size: 16px;
  }

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

  .split-block {
    padding: 56px 0;
  }

  .split-image img {
    height: 240px;
  }

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

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

  .process-steps {
    grid-template-columns: 1fr;
    gap: 28px;
  }

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

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

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

  .section-head p {
    font-size: 15px;
  }

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

  .hero-ctas {
    flex-direction: column;
    align-items: center;
  }

  .hero-ctas .btn-primary,
  .hero-ctas .btn-secondary {
    width: 100%;
    max-width: 320px;
  }
}

@media (max-width: 520px) {
  .page-hero h1 {
    font-size: 26px;
  }

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

  .split-text h2 {
    font-size: 23px;
  }

  .cta-form {
    padding: 24px 20px;
  }
}