: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; } }
.btn { display: inline-block; padding: 12px 28px; border-radius: 6px; font-weight: 600; font-size: 16px; text-align: center; transition: all 0.3s; }
.btn-primary { background: var(--primary); color: #fff; border: 2px solid var(--primary); box-shadow: 0 4px 10px rgba(48,209,88,0.3); }
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 6px 15px rgba(48,209,88,0.4); }



.download-hero { background: linear-gradient(135deg, #1f2937 0%, #111827 100%); color: #fff; padding: 100px 0; overflow: hidden; }
.download-inner { display: flex; align-items: center; justify-content: space-between; gap: 60px; }
.dl-text { flex: 1; max-width: 550px; }
.dl-text h1 { font-size: 42px; font-weight: 800; margin-bottom: 24px; line-height: 1.2; }
.dl-text h1 span { color: var(--primary); }
.dl-text p { font-size: 18px; color: #9ca3af; margin-bottom: 40px; line-height: 1.8; }
.dl-buttons { display: flex; gap: 20px; flex-wrap: wrap; }
.btn-dl { background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2); color: #fff; padding: 16px 32px; border-radius: 8px; font-size: 18px; font-weight: 600; display: inline-flex; align-items: center; gap: 12px; transition: all 0.3s; }
.btn-dl:hover { background: var(--primary); border-color: var(--primary); }
.dl-image { flex: 1; position: relative; display: flex; justify-content: center; }
.dl-image img { width: 320px; border-radius: 24px; border: 8px solid rgba(255,255,255,0.1); box-shadow: 0 30px 60px rgba(0,0,0,0.5); }

.dl-steps { padding: 80px 0; background: #fff; text-align: center; }
.dl-steps h2 { font-size: 32px; font-weight: 700; margin-bottom: 60px; color: var(--text-main); }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.step-item { position: relative; }
.step-item:not(:last-child)::after { content: "→"; position: absolute; right: -25px; top: 30px; font-size: 30px; color: var(--border); }
.step-num { width: 60px; height: 60px; background: var(--primary-light); color: var(--primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 24px; font-weight: 800; margin: 0 auto 20px; }
.step-item h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; }
.step-item p { font-size: 15px; color: var(--text-sub); }

@media (max-width: 992px) {
  .download-inner { flex-direction: column; text-align: center; }
  .dl-text { max-width: 100%; }
  .dl-buttons { justify-content: center; }
  .steps-grid { grid-template-columns: 1fr; gap: 60px; }
  .step-item:not(:last-child)::after { content: "↓"; right: 50%; top: auto; bottom: -45px; transform: translateX(50%); }
}