/* 橙色主题样式 */
:root {
    --primary-color: #FF6B35;
    --primary-dark: #E55A2B;
    --primary-light: #FF8B5C;
    --secondary-color: #FFA726;
    --accent-color: #FFD54F;
    --text-color: #333333;
    --text-light: #666666;
    --bg-color: #FFFFFF;
    --bg-light: #FFF8F2;
    --bg-dark: #F5F5F5;
    --border-color: #E0E0E0;
    --shadow: 0 4px 12px rgba(255, 107, 53, 0.15);
    --shadow-hover: 0 8px 24px rgba(255, 107, 53, 0.25);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-light);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
.header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 20px 0;
    box-shadow: var(--shadow);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 28px;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 32px;
}

/* 主内容区 */
.main-content {
    padding: 60px 0;
    min-height: calc(100vh - 200px);
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h1 {
    font-size: 36px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.section-title p {
    font-size: 18px;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* 入口卡片 */
.entry-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.entry-card {
    background: var(--bg-color);
    border-radius: 15px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.entry-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.entry-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-light);
}

.card-icon {
    font-size: 48px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.entry-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.entry-card p {
    color: var(--text-light);
    margin-bottom: 25px;
    font-size: 16px;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 16px;
}

.btn:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.3);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

/* 页脚 */
.footer {
    background: var(--bg-dark);
    padding: 30px 0;
    text-align: center;
    color: var(--text-light);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.copyright {
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .section-title h1 {
        font-size: 28px;
    }
    
    .entry-cards {
        grid-template-columns: 1fr;
    }
    
    .entry-card {
        padding: 30px 20px;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 107, 53, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 通知样式 */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 15px 25px;
    background: var(--primary-color);
    color: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
    z-index: 1000;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}