:root {
    --color-primary: #6366f1;
    --color-primary-dark: #4f46e5;
    --color-primary-light: #eef2ff;
    --color-accent: #f59e0b;
    --color-accent-dark: #d97706;
    --color-accent-light: #fef3c7;
    --color-text-dark: #1a1a2e;
    --color-text: #374151;
    --color-text-muted: #6b7280;
    --color-text-light: #9ca3af;
    --color-bg: #ffffff;
    --color-bg-light: #f9fafb;
    --color-bg-gray: #f3f4f6;
    --color-bg-dark: #111827;
    --color-border: #e5e7eb;
    --color-border-light: #f3f4f6;
    --color-success: #10b981;
    --color-error: #ef4444;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,.07);
    --shadow-lg: 0 10px 25px rgba(0,0,0,.1);
    --shadow-xl: 0 20px 50px rgba(0,0,0,.12);
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
    --transition: 0.25s cubic-bezier(.4,0,.2,1);
}

/* Reset & Base */
*,*::before,*::after{box-sizing:border-box}
body{font-family:var(--font-body);font-size:16px;line-height:1.7;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}
a{color:var(--color-primary);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--color-primary-dark)}
img{max-width:100%;height:auto}
h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:700;color:var(--color-text-dark);line-height:1.3;margin-top:0}
h1{font-size:2.5rem;font-weight:800}
h2{font-size:2rem}
h3{font-size:1.5rem}
h4{font-size:1.25rem}
.container{max-width:1220px;margin:0 auto;padding:0 20px}
.section{padding:80px 0}
.section.bg-light{background:var(--color-bg-light)}
.section.bg-gray{background:var(--color-bg-gray)}
.row{display:flex;flex-wrap:wrap;margin:0 -15px}
.col-md-4{flex:0 0 33.333%;max-width:33.333%;padding:0 15px}
.col-md-5{flex:0 0 41.666%;max-width:41.666%;padding:0 15px}
.col-md-6{flex:0 0 50%;max-width:50%;padding:0 15px}
.col-md-7{flex:0 0 58.333%;max-width:58.333%;padding:0 15px}
.col-md-8{flex:0 0 66.666%;max-width:66.666%;padding:0 15px}

/* A11y */
.skip-link{position:absolute;top:-50px;left:8px;z-index:9999;padding:10px 18px;background:var(--color-primary);color:#fff!important;border-radius:0 0 8px 8px;font-size:14px;transition:top .2s ease-out}
.skip-link:focus{top:0;outline:3px solid #fff;outline-offset:1px}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px;border-radius:3px}

/* Header */
.site-header{background:#fff;border-bottom:1px solid var(--color-border-light);position:sticky;top:0;z-index:1000;box-shadow:var(--shadow-sm)}
.header-main{display:flex;align-items:center;justify-content:center;height:70px;width:100%;padding:0 20px;position:relative}
.site-logo{display:flex;align-items:center;gap:10px;font-family:var(--font-heading);font-size:1.4rem;font-weight:700;color:var(--color-text-dark)!important;text-decoration:none!important;position:absolute;left:20px;z-index:2}
.site-logo:hover{color:var(--color-primary)!important}
.logo-icon{display:flex;align-items:center;justify-content:center;width:42px;height:42px;background:linear-gradient(135deg,var(--color-primary),var(--color-accent));border-radius:var(--radius-sm);color:#fff;font-size:1.2rem}
.site-nav{display:flex;align-items:center;gap:4px}
.site-nav>a{display:block;padding:8px 18px;font-size:15px;font-weight:500;color:var(--color-text);border-radius:var(--radius-sm);transition:all var(--transition);white-space:nowrap}
.site-nav>a:hover,.site-nav>a.active{color:var(--color-primary);background:var(--color-primary-light)}
.nav-drop{position:relative}.nav-drop>a{display:block;padding:8px 18px;font-size:15px;font-weight:500;color:var(--color-text);border-radius:var(--radius-sm);transition:all var(--transition);white-space:nowrap}.nav-drop:hover>a{color:var(--color-primary);background:var(--color-primary-light)}
.nav-drop-menu{display:none;position:absolute;top:100%;left:0;background:#fff;min-width:150px;box-shadow:var(--shadow-lg);border-radius:var(--radius-sm);padding:6px 0;z-index:100;max-height:320px;overflow-y:auto}.nav-drop:hover .nav-drop-menu{display:block}
.nav-drop-menu a{display:block;padding:8px 18px;font-size:14px;color:var(--color-text-muted);white-space:nowrap}.nav-drop-menu a:hover{background:var(--color-primary-light);color:var(--color-primary)}

/* Mobile toggle */
.mobile-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:5px;position:absolute;right:20px;z-index:2}
.mobile-toggle span{display:block;width:24px;height:2px;background:var(--color-text-dark);border-radius:2px;transition:all var(--transition)}

/* Footer */
.site-footer{background:var(--color-bg-dark);color:#d1d5db;padding:60px 0 30px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-title{color:#fff;font-size:1.1rem;margin-bottom:16px;font-weight:600}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:12px}.footer-brand-name{font-size:18px;font-weight:700;color:#fff}
.footer-desc{font-size:14px;line-height:1.7;margin-bottom:16px;opacity:.8}
.footer-social{display:flex;gap:12px}
.footer-social a{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:rgba(255,255,255,.1);border-radius:50%;color:#fff;font-size:1rem;transition:all var(--transition)}
.footer-social a:hover{background:var(--color-primary);transform:translateY(-2px)}
.footer-col a{display:block;padding:4px 0;font-size:14px;color:#9ca3af;transition:color var(--transition)}
.footer-col a:hover{color:#fff}
.footer-contact{font-size:14px;margin-bottom:6px}
.footer-contact i{width:18px;color:var(--color-accent)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);font-size:13px;color:#6b7280}

/* Hero */
.ad-hero{position:relative;background:linear-gradient(135deg,#1e1b4b 0%,#312e81 30%,#4338ca 60%,#6366f1 100%);padding:100px 0 80px;overflow:hidden}
.hero-icon{display:inline-flex;align-items:center;justify-content:center;width:80px;height:80px;background:rgba(255,255,255,.1);border-radius:50%;margin-bottom:24px;font-size:36px;color:var(--color-accent)}
.hero-content{max-width:800px;margin:0 auto;text-align:center}
.hero-title{font-size:48px;font-weight:800;color:#fff;margin-bottom:20px;line-height:1.15}
.hero-subtitle{font-size:18px;color:#c7d2fe;line-height:1.8;margin-bottom:36px;max-width:650px;margin-left:auto;margin-right:auto}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* Buttons */
.btn{display:inline-block;padding:12px 28px;font-size:15px;font-weight:600;border-radius:var(--radius-sm);border:none;cursor:pointer;transition:all var(--transition);text-align:center;font-family:var(--font-body)}
.btn-ad-primary{background:var(--color-accent);color:#1a1a2e!important;box-shadow:0 4px 15px rgba(245,158,11,.4)}
.btn-ad-primary:hover{background:var(--color-accent-dark);transform:translateY(-2px);box-shadow:0 8px 25px rgba(245,158,11,.5);color:#1a1a2e!important}
.btn-ad-outline{background:transparent;color:#fff!important;border:2px solid rgba(255,255,255,.5)}
.btn-ad-outline:hover{background:rgba(255,255,255,.1);border-color:#fff;transform:translateY(-2px);color:#fff!important}
.btn-lg{padding:16px 36px;font-size:17px}

/* Stats */
.stats-section{padding:50px 0;background:var(--color-bg-light)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-item{text-align:center;padding:24px}
.stat-num{display:inline-block;font-family:var(--font-heading);font-size:42px;font-weight:800;color:var(--color-primary)}
.stat-label{display:inline-block;font-size:28px;font-weight:800;color:var(--color-accent);margin-left:2px}
.stat-item p{font-size:14px;color:var(--color-text-muted);margin-top:8px}

/* Section Headers */
.section-header{text-align:center;margin-bottom:48px}
.section-title{font-size:34px;font-weight:800;margin-bottom:12px}
.section-desc{font-size:16px;color:var(--color-text-muted)}

/* Services Grid */
.services-grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.ad-card{background:#fff;border-radius:var(--radius-lg);padding:32px 24px;text-align:center;box-shadow:var(--shadow-sm);transition:all var(--transition);border:1px solid var(--color-border-light)}
.ad-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.svc-icon{display:inline-flex;align-items:center;justify-content:center;width:70px;height:70px;background:var(--color-primary-light);border-radius:var(--radius-md);margin-bottom:20px;font-size:28px;color:var(--color-primary)}
.ad-card h3{font-size:18px;margin-bottom:10px}
.ad-card p{font-size:14px;color:var(--color-text-muted);line-height:1.7}

/* Works Grid */
.ad-works{padding:80px 0}
.works-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.work-card{background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:all var(--transition)}
.work-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.work-card img{width:100%;height:240px;object-fit:cover}
.work-body{padding:24px}
.work-body h3{font-size:18px;margin-bottom:8px}
.work-tag{display:inline-block;padding:3px 12px;background:var(--color-primary-light);color:var(--color-primary);border-radius:20px;font-size:12px;font-weight:600;margin-bottom:8px}
.work-body p{font-size:14px;color:var(--color-text-muted);margin-top:8px}

/* Flow Grid */
.ad-flow{padding:80px 0}
.flow-grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.flow-card{position:relative;background:#fff;border-radius:var(--radius-lg);padding:32px 24px;text-align:center;box-shadow:var(--shadow-sm);border:1px solid var(--color-border-light)}
.flow-num{position:absolute;top:-16px;left:24px;display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:var(--color-primary);color:#fff;border-radius:50%;font-size:14px;font-weight:800}
.flow-icon-wrap{display:inline-flex;align-items:center;justify-content:center;width:64px;height:64px;background:var(--color-accent-light);border-radius:50%;margin:8px 0 16px;font-size:26px;color:var(--color-accent)}
.flow-card h3{font-size:18px;margin-bottom:8px}
.flow-card p{font-size:14px;color:var(--color-text-muted);line-height:1.7}

/* Content Block */
.content-block{margin-bottom:24px}
.block-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;padding-bottom:12px;border-bottom:2px solid var(--color-border)}
.block-title{font-size:24px;margin:0}
.block-more{font-size:14px;color:var(--color-text-muted)}.block-more:hover{color:var(--color-primary)}

/* News List */
.news-list-static{display:flex;flex-direction:column;gap:20px}
.news-item-static{display:flex;gap:16px;background:#fff;border-radius:var(--radius-md);padding:16px;box-shadow:var(--shadow-sm);transition:all var(--transition)}
.news-item-static:hover{box-shadow:var(--shadow-md)}
.news-thumb{flex-shrink:0;width:180px;height:120px;border-radius:var(--radius-sm);overflow:hidden}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-info{flex:1;min-width:0}
.news-date{font-size:12px;color:var(--color-text-light);margin-bottom:6px;display:block}
.news-info h3{font-size:16px;margin-bottom:6px}
.news-info h3 a{color:var(--color-text-dark)}.news-info h3 a:hover{color:var(--color-primary)}
.news-info p{font-size:13px;color:var(--color-text-muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* FAQ */
.ad-faq{padding:80px 0}
.faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border-radius:var(--radius-md);border:1px solid var(--color-border);overflow:hidden}
.faq-q{display:flex;align-items:center;gap:16px;padding:20px 24px;cursor:pointer}
.faq-num{display:flex;align-items:center;justify-content:center;width:32px;height:32px;background:var(--color-primary);color:#fff;border-radius:50%;font-size:14px;font-weight:800;flex-shrink:0}
.faq-q h3{flex:1;font-size:16px;margin:0}
.faq-q i{color:var(--color-text-light);transition:transform .3s}
.faq-a{display:none;padding:0 24px 20px 72px}
.faq-a p{font-size:14px;color:var(--color-text-muted);line-height:1.8;margin:0}
.faq-item.open .faq-a{display:block}
.faq-item.open .faq-q i{transform:rotate(180deg)}

/* CTA */
.ad-cta{background:linear-gradient(135deg,var(--color-primary),var(--color-primary-dark));padding:70px 0;text-align:center;color:#fff}
.ad-cta h2{font-size:34px;color:#fff;margin-bottom:12px}
.ad-cta p{font-size:16px;opacity:.85;margin-bottom:28px}
.cta-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* Contact Bar */
.contact-bar{background:var(--color-bg-dark);padding:32px 0}
.contact-bar-content{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px}
.contact-bar-text h2{font-size:22px;color:#fff;margin:0 0 4px}
.contact-bar-text p{font-size:14px;color:#9ca3af;margin:0}
.contact-bar-tel{display:flex;align-items:center;gap:12px}
.contact-bar-tel i{font-size:32px;color:var(--color-accent)}
.contact-bar-tel .tel{font-family:var(--font-heading);font-size:28px;font-weight:800;color:#fff}

/* Sidebar */
.sidebar{display:flex;flex-direction:column;gap:16px}
.sidebar .widget{background:#fff;border-radius:var(--radius-md);padding:20px;box-shadow:var(--shadow-sm);border:1px solid var(--color-border-light)}
.sidebar .widget h4{font-size:16px;margin-bottom:12px;padding-bottom:8px;border-bottom:2px solid var(--color-border)}
.sidebar .widget a{display:block;padding:5px 0;font-size:14px;color:var(--color-text-muted)}
.sidebar .widget a:hover{color:var(--color-primary)}

/* Widgets */
.widget{background:#fff;border-radius:var(--radius-md);padding:20px;box-shadow:var(--shadow-sm);margin-bottom:16px}
.widget-title{font-size:16px;font-weight:700;margin:0 0 12px;padding-bottom:8px;border-bottom:2px solid var(--color-border);color:var(--color-text-dark)}
.widget-title i{color:var(--color-primary);margin-right:6px}
.ad-list{list-style:none;padding:0;margin:0}.ad-list li{border-bottom:1px dashed #f0f0f0}.ad-list li:last-child{border-bottom:none}
.ad-list a{display:block;padding:8px 0;font-size:14px;color:var(--color-text-muted)}.ad-list a:hover{color:var(--color-primary)}
.ad-list i{font-size:10px;margin-right:6px;color:var(--color-text-light)}

/* Responsive */
@media(max-width:991px){
.stats-grid,.services-grid-4,.flow-grid-4{grid-template-columns:repeat(2,1fr)}
.works-grid{grid-template-columns:repeat(2,1fr)}
.hero-title{font-size:36px}
.section-title{font-size:28px}
.section{padding:50px 0}
.news-item-static{flex-direction:column}.news-thumb{width:100%;height:180px}
.footer-grid{grid-template-columns:repeat(2,1fr)}@media(max-width:600px){.footer-grid{grid-template-columns:1fr}}
.contact-bar-content{flex-direction:column;text-align:center}
}
@media(max-width:767px){
.stats-grid,.services-grid-4,.works-grid,.flow-grid-4{grid-template-columns:1fr}
.hero-title{font-size:28px}
.ad-hero{padding:60px 0 40px}
.section-title{font-size:22px}
.site-nav{display:none}.mobile-toggle{display:flex}
.footer-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column;gap:8px;text-align:center}
}