* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'KaiTi', 'STKaiti', 'SimSun', serif; background: linear-gradient(135deg, #f5f5dc, #fff8dc); min-height: 100vh; color: #1a1a1a; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
header { background: linear-gradient(90deg, #8B4513, #A0522D); padding: 20px 0; position: sticky; top: 0; z-index: 100; box-shadow: 0 4px 20px rgba(0,0,0,0.3); }
.logo { font-size: 32px; font-weight: 700; color: #FFD700; text-decoration: none; }
nav a { color: #FFD700; text-decoration: none; margin-left: 25px; font-weight: 600; }
.hero { background: linear-gradient(135deg, #8B4513, #A0522D); padding: 70px 0; text-align: center; border-bottom: 3px solid #FFD700; }
.hero h1 { font-size: 50px; color: #FFD700; margin-bottom: 10px; }
.hero p { font-size: 20px; color: #FFE4B5; }
main { padding: 50px 0; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 25px; }
.card { background: #fff; border-radius: 18px; padding: 22px; border: 2px solid #8B4513; transition: all 0.4s; box-shadow: 0 4px 15px rgba(0,0,0,0.1); }
.card:hover { transform: translateY(-8px); border-color: #FFD700; box-shadow: 0 15px 40px rgba(255,215,0,0.2); }
.card .icon { font-size: 45px; margin-bottom: 12px; }
.card h3 { color: #8B4513; font-size: 18px; margin-bottom: 8px; }
.card p { color: #555; font-size: 13px; margin-bottom: 12px; }
.card a { display: inline-block; padding: 10px 22px; background: linear-gradient(90deg, #FFD700, #FFA500); color: #1a1a1a; text-decoration: none; border-radius: 25px; font-weight: 700; }
footer { background: #8B4513; color: #fff; padding: 25px 0; text-align: center; }
.game-page { background: #fff; border-radius: 22px; padding: 35px; margin: 30px auto; max-width: 850px; border: 2px solid #8B4513; box-shadow: 0 8px 25px rgba(0,0,0,0.15); }
.game-page h1 { color: #8B4513; font-size: 26px; text-align: center; margin-bottom: 8px; }
.game-page .desc { color: #444; text-align: center; margin-bottom: 20px; }
.game-area { background: #fafafa; color: #1a1a1a; padding: 25px; border-radius: 12px; margin: 20px 0; text-align: center; border: 1px solid #ddd; }
.game-area p { color: #1a1a1a; }
.game-area button { padding: 12px 24px; background: linear-gradient(90deg, #FFD700, #FFA500); color: #1a1a1a; border: none; border-radius: 25px; font-weight: 700; cursor: pointer; margin: 5px; }
.game-area input { padding: 10px 18px; font-size: 18px; border: 2px solid #8B4513; border-radius: 10px; width: 200px; text-align: center; color: #1a1a1a; }
.result { font-size: 22px; font-weight: bold; margin: 18px 0; padding: 15px; border-radius: 10px; }
.result.correct { background: #d4edda; color: #155724; }
.result.wrong { background: #f8d7da; color: #721c24; }
.rules { background: #fff8dc; padding: 18px; border-radius: 12px; margin-top: 22px; border-left: 4px solid #FFD700; }
.rules h3 { color: #8B4513; margin-bottom: 10px; }
.rules li { color: #333; margin-bottom: 7px; margin-left: 18px; }
.back-link { color: #8B4513; text-decoration: none; font-weight: 700; }