:root {
    --primary-color: #2c5530;
    --secondary-color: #4a7c59;
    --accent-color: #e74c3c;
    --bg-color: #f5f5f5;
    --text-color: #333;
    --border-color: #ddd;
    --secret-color: #c0392b;
    --truth-color: #8e44ad;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: "Microsoft YaHei", "SimHei", "Noto Sans SC", sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
}
.header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
.logo h1 { font-size: 28px; margin-bottom: 5px; }
.logo .subtitle { font-size: 12px; opacity: 0.8; letter-spacing: 2px; }
.nav { margin-top: 15px; display: flex; gap: 20px; }
.nav a {
    color: white;
    text-decoration: none;
    padding: 5px 15px;
    border-radius: 3px;
    transition: background 0.3s;
}
.nav a:hover { background: rgba(255,255,255,0.2); }
.main { max-width: 1000px; margin: 0 auto; padding: 30px 20px; }
.hero {
    text-align: center;
    padding: 40px 20px;
    background: white;
    border-radius: 10px;
    margin-bottom: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.hero h2 { font-size: 32px; color: var(--primary-color); margin-bottom: 10px; }
.hero p { color: #666; font-size: 16px; }
.search-section {
    background: white;
    padding: 30px;
    border-radius: 10px;
    margin-bottom: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.search-box {
    display: flex;
    gap: 10px;
    max-width: 500px;
    margin: 0 auto;
}
.search-box input {
    flex: 1;
    padding: 12px 15px;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s;
}
.search-box input:focus { outline: none; border-color: var(--primary-color); }
.search-box button {
    padding: 12px 30px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.3s;
}
.search-box button:hover { background: var(--secondary-color); }
.search-hint { text-align: center; margin-top: 15px; color: #999; font-size: 14px; }
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}
.feature-card {
    background: white;
    padding: 25px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}
.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}
.feature-card h3 { color: var(--primary-color); margin-bottom: 10px; }
.feature-card p { color: #666; font-size: 14px; }
.news {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.news h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border-color);
}
.news ul { list-style: none; }
.news li { padding: 10px 0; border-bottom: 1px solid #eee; }
.news li:last-child { border-bottom: none; }
.news .date { color: #999; font-size: 14px; margin-right: 10px; }
.footer {
    background: #333;
    color: #999;
    text-align: center;
    padding: 30px;
    margin-top: 50px;
}
.footer p { margin-bottom: 5px; }
@media (max-width: 768px) {
    .nav { flex-wrap: wrap; gap: 10px; }
    .nav a { padding: 5px 10px; font-size: 14px; }
    .hero h2 { font-size: 24px; }
    .search-box { flex-direction: column; }
    .features { grid-template-columns: 1fr; }
}