* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); min-height: 100vh; color: #333; }
.container { max-width: 1200px; margin: 0 auto; padding: 20px; }
header { background: rgba(255,255,255,0.95); backdrop-filter: blur(10px); box-shadow: 0 4px 20px rgba(0,0,0,0.1); position: sticky; top: 0; z-index: 100; }
header .container { display: flex; justify-content: space-between; align-items: center; padding: 15px 20px; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo img { width: 45px; height: 45px; border-radius: 12px; }
.logo h1 { font-size: 24px; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
nav ul { display: flex; list-style: none; gap: 30px; }
nav a { text-decoration: none; color: #333; font-weight: 500; padding: 8px 16px; border-radius: 20px; transition: all 0.3s ease; }
nav a:hover { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; }
nav a.active { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; }
.hero { padding: 60px 20px; text-align: center; color: white; }
.hero h2 { font-size: 48px; margin-bottom: 20px; text-shadow: 2px 2px 4px rgba(0,0,0,0.3); }
.hero p { font-size: 20px; margin-bottom: 40px; opacity: 0.9; }
.hero .btn { display: inline-block; padding: 15px 40px; background: white; color: #667eea; text-decoration: none; border-radius: 30px; font-weight: bold; font-size: 18px; box-shadow: 0 4px 15px rgba(0,0,0,0.2); transition: transform 0.3s ease, box-shadow 0.3s ease; }
.hero .btn:hover { transform: translateY(-3px); box-shadow: 0 8px 25px rgba(0,0,0,0.3); }
.features { padding: 40px 20px; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px,1fr)); gap: 30px; }
.feature-card { background: white; border-radius: 20px; padding: 30px; text-align: center; box-shadow: 0 8px 30px rgba(0,0,0,0.1); transition: transform 0.3s ease; }
.feature-card:hover { transform: translateY(-10px); }
.feature-card .icon { font-size: 50px; margin-bottom: 20px; }
.feature-card h3 { font-size: 22px; margin-bottom: 15px; color: #333; }
.feature-card p { color: #666; line-height: 1.6; }
.games-section { padding: 40px 20px; }
.games-section h2 { text-align: center; color: white; font-size: 36px; margin-bottom: 40px; }
.games-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px,1fr)); gap: 30px; }
.game-card { background: white; border-radius: 20px; overflow: hidden; box-shadow: 0 8px 30px rgba(0,0,0,0.15); transition: transform 0.3s ease; }
.game-card:hover { transform: translateY(-10px); }
.game-card .game-image { height: 200px; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); display: flex; align-items: center; justify-content: center; font-size: 60px; }
.game-card .game-info { padding: 25px; }
.game-card h3 { font-size: 24px; margin-bottom: 10px; }
.game-card p { color: #666; margin-bottom: 20px; }
.game-card .btn { display: inline-block; padding: 10px 30px; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; text-decoration: none; border-radius: 20px; font-weight: 500; transition: all 0.3s ease; }
.game-card .btn:hover { transform: scale(1.05); }
.eye-care-banner { background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%); margin: 40px 20px; padding: 40px; border-radius: 20px; text-align: center; color: white; }
.eye-care-banner h3 { font-size: 28px; margin-bottom: 15px; }
.eye-care-banner p { font-size: 16px; margin-bottom: 20px; }
.eye-care-banner .btn { display: inline-block; padding: 12px 35px; background: white; color: #f5576c; text-decoration: none; border-radius: 25px; font-weight: bold; transition: transform 0.3s ease; }
.eye-care-banner .btn:hover { transform: scale(1.05); }
footer { background: rgba(0,0,0,0.2); padding: 30px 20px; text-align: center; color: white; }
footer p { opacity: 0.8; }
.page-content { padding: 40px 20px; }
.page-content h1 { color: white; font-size: 36px; margin-bottom: 30px; text-align: center; }
.page-content .content-box { background: white; border-radius: 20px; padding: 40px; box-shadow: 0 8px 30px rgba(0,0,0,0.15); }
.page-content .content-box h2 { color: #333; margin-bottom: 20px; }
.page-content .content-box p { color: #666; line-height: 1.8; margin-bottom: 20px; }
.page-content .content-box ul { color: #666; line-height: 2; padding-left: 20px; }
.download-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px,1fr)); gap: 30px; }
.download-card { background: white; border-radius: 20px; padding: 30px; text-align: center; box-shadow: 0 8px 30px rgba(0,0,0,0.15); }
.download-card .icon { font-size: 60px; margin-bottom: 20px; }
.download-card h3 { font-size: 22px; margin-bottom: 15px; }
.download-card .download-btn { display: inline-block; padding: 12px 30px; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; text-decoration: none; border-radius: 25px; font-weight: bold; transition: all 0.3s ease; }
.download-card .download-btn:hover { transform: translateY(-3px); box-shadow: 0 6px 20px rgba(102,126,234,0.4); }
@media (max-width:768px) { header .container { flex-direction: column; gap:15px; } nav ul { gap:15px; } .hero h2 { font-size:32px; } .hero p { font-size:16px; } }