:root {
  --primary: #1a56db;
  --primary-dark: #1240a8;
  --primary-light: #e8effc;
  --accent: #f59e0b;
  --text: #1f2937;
  --text-light: #6b7280;
  --bg: #ffffff;
  --bg-gray: #f9fafb;
  --border: #e5e7eb;
  --shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.12);
  --radius: 8px;
  --max-width: 1200px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);line-height:1.6;background:var(--bg)}
a{color:var(--primary);text-decoration:none}
img{max-width:100%;height:auto}
.container{max-width:var(--max-width);margin:0 auto;padding:0 20px}
.header{position:fixed;top:0;left:0;right:0;background:rgba(255,255,255,0.97);backdrop-filter:blur(10px);z-index:1000;border-bottom:1px solid var(--border);transition:box-shadow .3s}
.header.scrolled{box-shadow:var(--shadow)}
.header .container{display:flex;align-items:center;justify-content:space-between;height:72px}
.header-logo{display:flex;align-items:center;gap:12px}
.header-logo img{height:44px;width:auto}
.header-logo .logo-text{font-size:20px;font-weight:700;color:var(--primary);white-space:nowrap}
.header-nav{display:flex;align-items:center;gap:4px}
.header-nav a{padding:8px 18px;border-radius:var(--radius);color:var(--text);font-weight:500;font-size:15px;transition:all .2s}
.header-nav a:hover,.header-nav a.active{background:var(--primary-light);color:var(--primary)}
.header-cta{display:flex;align-items:center;gap:12px}
.header-cta .phone{color:var(--text);font-size:14px;font-weight:500}
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 24px;border-radius:var(--radius);font-weight:600;font-size:15px;cursor:pointer;border:none;transition:all .2s;text-decoration:none}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 4px 12px rgba(26,86,219,.4)}
.btn-outline{background:transparent;color:var(--primary);border:2px solid var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{opacity:.9}
.btn-lg{padding:14px 36px;font-size:17px}
.menu-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:4px}
.menu-toggle span{display:block;width:24px;height:2.5px;background:var(--text);border-radius:2px;transition:all .3s}
.hero{padding:140px 0 100px;background:linear-gradient(135deg,#1a56db 0%,#2563eb 30%,#3b82f6 60%,#1240a8 100%);color:#fff;text-align:center;position:relative;overflow:hidden}
.hero .container{position:relative;z-index:1}
.hero h1{font-size:48px;font-weight:800;line-height:1.2;margin-bottom:16px}
.hero h1 span{color:#fbbf24}
.hero .subtitle{font-size:22px;opacity:.9;margin-bottom:12px;font-weight:500}
.hero .slogan{font-size:28px;font-weight:700;margin-bottom:24px;color:#fbbf24}
.hero p{font-size:16px;opacity:.85;max-width:700px;margin:0 auto 36px}
.hero .btn-group{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.section{padding:80px 0}
.section-gray{background:var(--bg-gray)}
.section-title{text-align:center;margin-bottom:56px}
.section-title h2{font-size:36px;font-weight:800;color:var(--text);margin-bottom:12px}
.section-title p{font-size:17px;color:var(--text-light);max-width:600px;margin:0 auto}
.section-title .divider{width:60px;height:4px;background:var(--primary);margin:16px auto 0;border-radius:2px}
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:28px}
.card{background:#fff;border-radius:12px;padding:36px 28px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;border:1px solid var(--border)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.card-icon{width:60px;height:60px;background:var(--primary-light);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:28px;margin-bottom:20px}
.card h3{font-size:20px;font-weight:700;margin-bottom:10px}
.card p{color:var(--text-light);font-size:15px;line-height:1.7}
.numbers{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.number-item h3{font-size:48px;font-weight:800;color:var(--primary);margin-bottom:4px}
.number-item p{color:var(--text-light);font-size:16px}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{text-align:center;padding:32px 20px;border-radius:12px;background:#fff;border:2px solid var(--border);transition:all .3s}
.feature-card:hover{border-color:var(--primary);box-shadow:var(--shadow)}
.feature-card .emoji{font-size:40px;margin-bottom:12px}
.feature-card h3{font-size:22px;font-weight:700;color:var(--primary);margin-bottom:8px}
.feature-card p{color:var(--text-light);font-size:14px}
.case-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px}
.case-card{border-radius:12px;overflow:hidden;box-shadow:var(--shadow);transition:transform .3s;background:#fff}
.case-card:hover{transform:translateY(-4px)}
.case-card-img{height:220px;background:var(--bg-gray);display:flex;align-items:center;justify-content:center;color:var(--text-light);font-size:48px;overflow:hidden}
.case-card-img img{width:100%;height:100%;object-fit:cover}
.case-card-body{padding:20px}
.case-card-body h3{font-size:18px;font-weight:700;margin-bottom:6px}
.case-card-body .meta{font-size:13px;color:var(--text-light);margin-bottom:8px}
.case-tags{display:flex;gap:6px;flex-wrap:wrap}
.tag{display:inline-block;padding:4px 12px;background:var(--primary-light);color:var(--primary);border-radius:20px;font-size:12px;font-weight:500}
.filter-bar{display:flex;justify-content:center;gap:12px;margin-bottom:36px;flex-wrap:wrap}
.filter-btn{padding:8px 20px;border-radius:20px;border:1px solid var(--border);background:#fff;cursor:pointer;font-size:14px;transition:all .2s}
.filter-btn.active,.filter-btn:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-weight:600;margin-bottom:6px;font-size:14px}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 16px;border:1px solid var(--border);border-radius:var(--radius);font-size:15px;font-family:inherit;transition:border-color .2s}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(26,86,219,.1)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.contact-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:48px;align-items:start}
.contact-info h3{font-size:28px;font-weight:700;margin-bottom:16px}
.contact-info .info-item{display:flex;align-items:center;gap:12px;margin-bottom:16px;font-size:16px}
.contact-info .info-item .icon{width:44px;height:44px;background:var(--primary-light);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}
.badges{display:flex;gap:16px;flex-wrap:wrap;justify-content:center;margin-top:32px}
.badge{display:flex;align-items:center;gap:8px;padding:16px 24px;background:#fff;border-radius:12px;box-shadow:var(--shadow);font-weight:600;font-size:15px;border:1px solid var(--border)}
.badge .icon{font-size:24px}
.page-banner{padding:120px 0 60px;background:linear-gradient(135deg,#1a56db 0%,#2563eb 100%);color:#fff;text-align:center}
.page-banner h1{font-size:40px;font-weight:800;margin-bottom:8px}
.page-banner p{font-size:16px;opacity:.9}
.breadcrumb{display:flex;gap:8px;justify-content:center;align-items:center;margin-top:10px;font-size:14px;opacity:.8}
.breadcrumb a{color:rgba(255,255,255,.8)}
.timeline{position:relative;padding-left:40px}
.timeline::before{content:"";position:absolute;left:15px;top:0;bottom:0;width:2px;background:var(--primary-light)}
.timeline-item{position:relative;margin-bottom:32px}
.timeline-item::before{content:"";position:absolute;left:-33px;top:5px;width:14px;height:14px;border-radius:50%;background:var(--primary);border:3px solid #fff;box-shadow:0 0 0 3px var(--primary-light)}
.timeline-item h3{font-size:18px;font-weight:700;margin-bottom:4px}
.timeline-item .year{font-size:14px;color:var(--primary);font-weight:600;margin-bottom:4px}
.timeline-item p{color:var(--text-light)}
.franchise-grid{display:grid;grid-template-columns:1fr 1.4fr;gap:48px;align-items:start}
.franchise-benefits h3{font-size:28px;font-weight:700;margin-bottom:20px}
.benefit-item{display:flex;gap:16px;margin-bottom:24px}
.benefit-item .icon{width:50px;height:50px;background:var(--primary-light);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:22px;flex-shrink:0}
.benefit-item h4{font-size:17px;font-weight:700;margin-bottom:4px}
.benefit-item p{font-size:14px;color:var(--text-light)}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px;overflow:hidden}
.faq-q{padding:18px 24px;background:#fff;cursor:pointer;font-weight:600;display:flex;justify-content:space-between;align-items:center;font-size:16px}
.faq-q:hover{background:var(--bg-gray)}
.faq-a{padding:0 24px 18px;color:var(--text-light);display:none;font-size:15px;line-height:1.7}
.faq-item.open .faq-a{display:block}
.admin-login{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg-gray)}
.admin-login-box{background:#fff;padding:48px;border-radius:16px;box-shadow:var(--shadow-lg);width:100%;max-width:420px}
.admin-login-box h1{text-align:center;font-size:24px;margin-bottom:32px;color:var(--primary)}
.admin-layout{display:flex;min-height:100vh}
.admin-sidebar{width:240px;background:var(--text);color:#fff;padding:24px;position:fixed;top:0;left:0;bottom:0}
.admin-sidebar h2{font-size:18px;margin-bottom:32px;color:var(--accent)}
.admin-sidebar a{display:block;padding:10px 16px;color:rgba(255,255,255,.7);border-radius:8px;margin-bottom:4px;transition:all .2s}
.admin-sidebar a:hover,.admin-sidebar a.active{background:rgba(255,255,255,.1);color:#fff}
.admin-main{margin-left:240px;flex:1;padding:32px;background:var(--bg-gray)}
.admin-table{width:100%;background:#fff;border-radius:12px;overflow:hidden;box-shadow:var(--shadow)}
.admin-table th,.admin-table td{padding:14px 20px;text-align:left;border-bottom:1px solid var(--border)}
.admin-table th{background:var(--bg-gray);font-weight:600;font-size:13px;text-transform:uppercase;color:var(--text-light)}
.admin-table tr:hover td{background:var(--bg-gray)}
.footer{background:var(--text);color:rgba(255,255,255,.7);padding:60px 0 24px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer h4{color:#fff;font-size:16px;margin-bottom:16px}
.footer a{color:rgba(255,255,255,.6);display:block;margin-bottom:8px;font-size:14px;transition:color .2s}
.footer a:hover{color:#fff}
.footer-brand p{font-size:14px;margin-bottom:12px;line-height:1.8}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;text-align:center;font-size:13px}
.back-to-top{position:fixed;bottom:30px;right:30px;width:48px;height:48px;background:var(--primary);color:#fff;border-radius:50%;border:none;cursor:pointer;font-size:20px;box-shadow:var(--shadow);display:none;z-index:999;transition:all .3s}
.back-to-top:hover{background:var(--primary-dark);transform:translateY(-2px)}
.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;z-index:2000;display:none}
.modal{background:#fff;border-radius:16px;padding:36px;max-width:500px;width:90%;box-shadow:var(--shadow-lg)}
.modal h3{margin-bottom:20px;font-size:22px}
.toast{position:fixed;top:80px;right:20px;background:#10b981;color:#fff;padding:14px 24px;border-radius:var(--radius);font-weight:600;z-index:3000;box-shadow:var(--shadow-lg);animation:slideIn .3s ease}
@keyframes slideIn{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}
@media(max-width:1024px){.numbers{grid-template-columns:repeat(2,1fr)}.feature-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.franchise-grid,.contact-grid{grid-template-columns:1fr}}
@media(max-width:768px){.header-nav{display:none;position:fixed;top:72px;left:0;right:0;background:#fff;flex-direction:column;padding:16px;border-top:1px solid var(--border);box-shadow:var(--shadow)}.header-nav.open{display:flex}.menu-toggle{display:flex}.header-cta .phone{display:none}.hero h1{font-size:32px}.hero .slogan{font-size:20px}.hero .subtitle{font-size:17px}.numbers{grid-template-columns:repeat(2,1fr)}.feature-grid{grid-template-columns:1fr}.section-title h2{font-size:28px}.form-row{grid-template-columns:1fr}.admin-sidebar{display:none}.admin-main{margin-left:0}}