:root { --primary: rgb(48,209,88); --primary-hover: #28b84d; --primary-light: rgba(48,209,88,0.1); --text-main: #111827; --text-sub: #4b5563; --bg-page: #f8fafc; --bg-card: #ffffff; --border: #e5e7eb; }
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; background: var(--bg-page); color: var(--text-main); line-height: 1.6; }
a { text-decoration: none; color: inherit; } ul, li { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.logo { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.logo img { display: block; height: 40px; width: auto; max-width: 160px; object-fit: contain; flex-shrink: 0; }
.logo span { display: inline-block; font-size: 20px; font-weight: 800; line-height: 1; color: var(--text-main); white-space: nowrap; }
.header { background: var(--bg-card); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 10px rgba(0,0,0,0.02); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 75px; }
.nav-desktop { display: flex; gap: 28px; }
.nav-desktop a { font-size: 16px; color: var(--text-main); font-weight: 500; transition: color 0.3s; }
.nav-desktop a:hover { color: var(--primary); }
.header-btn { padding: 10px 24px; background: var(--primary); color: #fff; border-radius: 6px; font-weight: 600; transition: background 0.3s; }
.header-btn:hover { background: var(--primary-hover); }
.menu-toggle { display: none; background: none; border: none; font-size: 28px; cursor: pointer; color: var(--text-main); }
.drawer-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 200; opacity: 0; visibility: hidden; transition: all 0.3s; }
.drawer-overlay.active { opacity: 1; visibility: visible; }
.drawer { position: fixed; top: 0; left: -300px; width: 300px; height: 100%; background: var(--bg-card); z-index: 201; box-shadow: 2px 0 15px rgba(0,0,0,0.1); transition: left 0.3s; display: flex; flex-direction: column; }
.drawer.active { left: 0; }
.drawer-header { padding: 20px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.drawer-close { background: none; border: none; font-size: 24px; cursor: pointer; color: var(--text-sub); }
.drawer-nav { padding: 20px; flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 15px; }
.drawer-nav a { font-size: 16px; color: var(--text-main); font-weight: 500; padding: 10px 0; border-bottom: 1px solid var(--bg-page); }
.footer { background: #1f2937; color: #d1d5db; padding: 70px 0 30px; margin-top: 60px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 50px; margin-bottom: 50px; }
.footer .logo span { color: #fff; }
.footer-desc { margin-top: 20px; font-size: 14px; line-height: 1.8; color: #9ca3af; max-width: 320px; }
.footer-title { color: #fff; font-size: 18px; font-weight: 600; margin-bottom: 24px; }
.footer-nav li { margin-bottom: 12px; }
.footer-nav a { transition: color 0.3s; font-size: 15px; }
.footer-nav a:hover { color: var(--primary); }
.footer-bottom { border-top: 1px solid #374151; padding-top: 24px; display: flex; justify-content: space-between; font-size: 14px; color: #9ca3af; }
.footer-links a { margin-left: 20px; transition: color 0.3s; }
.footer-links a:hover { color: var(--primary); }
@media (max-width: 768px) { .nav-desktop, .header-btn { display: none; } .menu-toggle { display: block; } .footer-grid { grid-template-columns: 1fr; gap: 40px; } .footer-bottom { flex-direction: column; gap: 15px; text-align: center; } .footer-links a { margin: 0 10px; } }



.about-hero { background: #fff; padding: 80px 0; text-align: center; border-bottom: 1px solid var(--border); }
.about-hero h1 { font-size: 40px; font-weight: 800; margin-bottom: 20px; color: var(--text-main); }
.about-hero p { font-size: 18px; color: var(--text-sub); max-width: 700px; margin: 0 auto; line-height: 1.8; }

.about-section { padding: 80px 0; }
.split-wrap { display: flex; align-items: center; gap: 60px; margin-bottom: 80px; }
.split-wrap:nth-child(even) { flex-direction: row-reverse; }
.split-text { flex: 1; }
.split-text h2 { font-size: 30px; font-weight: 700; margin-bottom: 24px; position: relative; padding-bottom: 16px; }
.split-text h2::after { content: ""; position: absolute; left: 0; bottom: 0; width: 60px; height: 4px; background: var(--primary); border-radius: 2px; }
.split-text p { font-size: 16px; color: var(--text-sub); margin-bottom: 20px; line-height: 1.8; }
.split-image { flex: 1; position: relative; }
.split-image img { width: 100%; border-radius: 16px; box-shadow: 0 20px 40px rgba(0,0,0,0.1); }
.split-image::before { content: ""; position: absolute; top: -20px; left: -20px; right: 20px; bottom: 20px; background: var(--primary-light); border-radius: 16px; z-index: -1; }

.stats-bar { background: var(--text-main); padding: 60px 0; color: #fff; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); text-align: center; gap: 30px; }
.stat-item h3 { font-size: 46px; font-weight: 800; color: var(--primary); margin-bottom: 10px; }
.stat-item p { font-size: 16px; color: #d1d5db; }

@media (max-width: 992px) {
  .split-wrap, .split-wrap:nth-child(even) { flex-direction: column; gap: 40px; }
  .split-image::before { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}