*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#1a56db;--primary-light:#e8f0fe;--primary-dark:#0d3b9e;--accent:#f59e0b;--accent-dark:#d97706;--bg:#f8fafc;--card:#fff;--text:#111827;--text-sec:#6b7280;--border:#e5e7eb;--radius:16px;--shadow:0 1px 3px rgba(0,0,0,.06);--shadow-lg:0 10px 40px rgba(0,0,0,.1);--max-w:1200px;--tr:all .3s ease}
html{scroll-behavior:smooth}
body{font-family:-apple-system,"SF Pro Display","PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:var(--primary);text-decoration:none;transition:var(--tr)}
img{max-width:100%;display:block}
ul{list-style:none}

/* Header */
.header{background:rgba(255,255,255,.95);backdrop-filter:blur(12px);position:fixed;top:0;left:0;right:0;z-index:1000;border-bottom:1px solid var(--border)}
.header-inner{max-width:var(--max-w);margin:0 auto;padding:0 24px;height:72px;display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--text)}
.logo-icon{width:36px;height:36px;background:var(--primary);border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px;font-weight:800}
.logo em{color:var(--primary);font-style:normal}
nav{display:flex;align-items:center;gap:4px}
nav a{padding:8px 18px;border-radius:24px;font-size:14px;font-weight:500;color:var(--text-sec);transition:var(--tr)}
nav a:hover,nav a.active{background:var(--primary-light);color:var(--primary)}
.nav-cta{margin-left:12px;padding:10px 24px!important;background:var(--primary)!important;color:#fff!important;font-weight:600!important}
.nav-cta:hover{background:var(--primary-dark)!important}
.menu-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px}
.menu-toggle span{display:block;width:22px;height:2px;background:var(--text);margin:5px 0;border-radius:2px;transition:.3s}

/* Hero */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;background:linear-gradient(135deg,#0f172a 0%,#1e3a5f 50%,#1a56db 100%);overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:url('https://images.unsplash.com/photo-1451187580459-43490279c0fa?w=1920&q=80') center/cover;opacity:.15}
.hero-inner{position:relative;max-width:var(--max-w);margin:0 auto;padding:120px 24px 80px;width:100%;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.hero-content{color:#fff}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:24px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);font-size:13px;color:rgba(255,255,255,.8);margin-bottom:24px}
.hero-badge-dot{width:6px;height:6px;border-radius:50%;background:#34d399}
.hero h1{font-size:46px;font-weight:800;line-height:1.2;margin-bottom:20px}
.hero h1 .hl{color:var(--accent)}
.hero-content>p{font-size:17px;color:rgba(255,255,255,.7);max-width:500px;margin-bottom:36px;line-height:1.8}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}
.btn-p{display:inline-flex;align-items:center;gap:8px;padding:16px 32px;border-radius:28px;background:var(--accent);color:#111;font-size:15px;font-weight:700;transition:var(--tr);border:none;cursor:pointer}
.btn-p:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:0 8px 24px rgba(245,158,11,.3)}
.btn-o{display:inline-flex;align-items:center;gap:8px;padding:16px 32px;border-radius:28px;background:transparent;color:#fff;font-size:15px;font-weight:600;border:1.5px solid rgba(255,255,255,.3);transition:var(--tr);cursor:pointer}
.btn-o:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.5);color:#fff}
.hero-visual{display:flex;justify-content:center;align-items:center}
.hero-img{width:100%;max-width:480px;border-radius:20px;box-shadow:0 20px 60px rgba(0,0,0,.3);object-fit:cover;aspect-ratio:4/3}

/* Trust */
.trust-bar{background:var(--card);border-bottom:1px solid var(--border);padding:24px 0}
.trust-inner{max-width:var(--max-w);margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:center;gap:48px;flex-wrap:wrap}
.trust-item{display:flex;align-items:center;gap:10px;color:var(--text-sec);font-size:14px;font-weight:500}
.trust-item svg{width:20px;height:20px;fill:var(--primary);flex-shrink:0}

/* Section */
.section{max-width:var(--max-w);margin:0 auto;padding:100px 24px}
.section-header{text-align:center;margin-bottom:60px}
.section-tag{display:inline-block;padding:6px 16px;border-radius:24px;background:var(--primary-light);color:var(--primary);font-size:13px;font-weight:600;margin-bottom:16px;letter-spacing:.5px}
.section-title{font-size:34px;font-weight:800;margin-bottom:16px;line-height:1.3}
.section-desc{color:var(--text-sec);font-size:16px;max-width:600px;margin:0 auto}

/* Services */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.svc-card{background:var(--card);border-radius:var(--radius);padding:36px 28px;border:1px solid var(--border);transition:var(--tr);position:relative;overflow:hidden}
.svc-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--primary);transform:scaleX(0);transition:transform .3s;transform-origin:left}
.svc-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.svc-card:hover::before{transform:scaleX(1)}
.svc-icon{width:56px;height:56px;border-radius:14px;background:var(--primary-light);display:flex;align-items:center;justify-content:center;margin-bottom:24px}
.svc-icon svg{width:28px;height:28px;fill:var(--primary)}
.svc-card h3{font-size:19px;font-weight:700;margin-bottom:12px}
.svc-card p{font-size:14px;color:var(--text-sec);line-height:1.8;margin-bottom:20px}
.svc-link{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.svc-link:hover{gap:10px}

/* E-commerce */
.ecommerce{background:linear-gradient(135deg,#0f172a,#1e3a5f);padding:100px 0}
.ec-inner{max-width:var(--max-w);margin:0 auto;padding:0 24px;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.ec-content{color:#fff}
.ec-content .section-tag{background:rgba(245,158,11,.15);color:var(--accent)}
.ec-content h2{font-size:34px;font-weight:800;margin-bottom:20px;color:#fff}
.ec-content>p{font-size:16px;color:rgba(255,255,255,.7);margin-bottom:36px;line-height:1.8}
.ec-features{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:36px}
.ec-feat{display:flex;align-items:flex-start;gap:12px;padding:16px;border-radius:12px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08)}
.ec-feat-icon{width:36px;height:36px;border-radius:8px;flex-shrink:0;background:rgba(245,158,11,.15);display:flex;align-items:center;justify-content:center}
.ec-feat-icon svg{width:18px;height:18px;fill:var(--accent)}
.ec-feat h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:4px}
.ec-feat p{font-size:12px;color:rgba(255,255,255,.5)}
.ec-visual img{width:100%;border-radius:20px;box-shadow:0 20px 60px rgba(0,0,0,.3);object-fit:cover;aspect-ratio:4/3}

/* Solutions */
.sol-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.sol-card{background:var(--card);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);transition:var(--tr);display:grid;grid-template-columns:200px 1fr}
.sol-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:transparent}
.sol-card img{width:100%;height:100%;object-fit:cover}
.sol-body{padding:28px}
.sol-body h3{font-size:18px;font-weight:700;margin-bottom:10px}
.sol-body p{font-size:14px;color:var(--text-sec);line-height:1.7;margin-bottom:16px}
.sol-tags{display:flex;flex-wrap:wrap;gap:8px}
.sol-tag{padding:4px 12px;border-radius:20px;font-size:12px;background:var(--primary-light);color:var(--primary);font-weight:500}

/* About */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-content h2{font-size:32px;font-weight:800;margin-bottom:20px}
.about-content>p{color:var(--text-sec);font-size:15px;margin-bottom:16px;line-height:1.8}
.about-hl{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}
.about-hl-item{padding:20px;border-radius:12px;background:var(--primary-light)}
.about-hl-item h4{font-size:24px;font-weight:800;color:var(--primary);margin-bottom:4px}
.about-hl-item p{font-size:13px;color:var(--text-sec)}
.about-img{width:100%;border-radius:20px;box-shadow:var(--shadow-lg);object-fit:cover;aspect-ratio:4/3}

/* Stats */
.stats-section{background:var(--card);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.stats-grid{max-width:var(--max-w);margin:0 auto;padding:60px 24px;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat-num{font-size:42px;font-weight:800;color:var(--primary)}
.stat-label{font-size:14px;color:var(--text-sec);margin-top:6px}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:40px}
.contact-info{background:linear-gradient(135deg,#0f172a,#1e3a5f);border-radius:var(--radius);padding:48px 36px;color:#fff}
.contact-info h3{font-size:24px;font-weight:700;margin-bottom:8px}
.contact-info>p{font-size:14px;color:rgba(255,255,255,.6);margin-bottom:36px}
.c-list{display:flex;flex-direction:column;gap:24px}
.c-item{display:flex;align-items:flex-start;gap:16px}
.c-icon{width:44px;height:44px;border-radius:12px;flex-shrink:0;background:rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center}
.c-icon svg{width:20px;height:20px;fill:var(--accent)}
.c-item dt{font-size:12px;color:rgba(255,255,255,.5);margin-bottom:4px}
.c-item dd{font-size:15px;font-weight:600;color:#fff}
.contact-form{background:var(--card);border-radius:var(--radius);padding:48px 36px;border:1px solid var(--border);box-shadow:var(--shadow)}
.contact-form h3{font-size:22px;font-weight:700;margin-bottom:24px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-g{margin-bottom:16px}
.form-g label{display:block;font-size:13px;font-weight:600;color:var(--text);margin-bottom:6px}
.form-g input,.form-g textarea,.form-g select{width:100%;padding:12px 16px;border:1.5px solid var(--border);border-radius:10px;font-size:14px;font-family:inherit;outline:none;transition:var(--tr);background:var(--bg)}
.form-g input:focus,.form-g textarea:focus,.form-g select:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(26,86,219,.1)}
.form-g textarea{resize:vertical;min-height:100px}
.btn-submit{width:100%;padding:14px;border:none;border-radius:28px;background:var(--primary);color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:var(--tr)}
.btn-submit:hover{background:var(--primary-dark)}

/* Footer */
.footer{background:#0f172a;color:rgba(255,255,255,.7);padding:60px 0 0}
.footer-inner{max-width:var(--max-w);margin:0 auto;padding:0 24px;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px}
.footer-brand .logo{color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;margin-top:16px;color:rgba(255,255,255,.5)}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:20px}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.5);padding:4px 0;transition:var(--tr)}
.footer-col a:hover{color:#fff}
.footer-bottom{max-width:var(--max-w);margin:48px auto 0;padding:24px;border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;align-items:center;font-size:13px;color:rgba(255,255,255,.4)}
.footer-bottom a{color:rgba(255,255,255,.4)}
.footer-bottom a:hover{color:#fff}

/* Reveal */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* Mobile */
@media(max-width:768px){
  .menu-toggle{display:block}
  nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--card);flex-direction:column;padding:16px 24px;box-shadow:0 4px 16px rgba(0,0,0,.08);border-top:1px solid var(--border)}
  nav.open{display:flex}
  .nav-cta{margin-left:0!important;text-align:center}
  .hero-inner{grid-template-columns:1fr;padding:100px 24px 60px;text-align:center}
  .hero h1{font-size:30px}
  .hero-content>p{margin:0 auto 36px}
  .hero-btns{justify-content:center}
  .hero-visual{display:none}
  .services-grid,.ec-features{grid-template-columns:1fr}
  .ec-inner,.sol-grid,.about-grid,.contact-grid{grid-template-columns:1fr}
  .sol-card{grid-template-columns:1fr}
  .sol-card img{height:180px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .footer-inner{grid-template-columns:1fr 1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:8px;text-align:center}
  .section{padding:60px 24px}
  .section-title{font-size:26px}
  .form-row{grid-template-columns:1fr}
  .trust-inner{gap:24px}
}