:root {
    --primary: #2c3e50;
    --primary-blue: #2c3e50;
    --secondary: #3498db;
    --secondary-blue: #3498db;
    --accent: #e74c3c;
    --accent-purple: #7b68ee;
    --accent-orange: #ff7f50;
    --light: #f8f9fa;
    --dark: #2c3e50;
    --text-dark: #333;
    --text-light: #fff;
    --text-highlight: #ffffff;
    --success: #2ecc71;
    --warning: #f39c12;
    --border-radius: 8px;
    --info: #3498db;
    --border-radius: 8px;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --transition: all 0.3s ease;
    --navbar-height: 70px;
    --logo-color: #e74c3c;
    --school-bg: #e3f2fd;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
    /* 淡蓝色背景 */
    /* 导航栏高度，用于滚动定位计算 */
    --timeline-height: 240px;
    /* 调整时间轴区域高度，更紧凑 */
    --image-zoom: 1.3;
    /* 图片放大倍数 */
}

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

.mb5 {
    margin-bottom: 5px;
}


.mb10 {
    margin-bottom: 10px;
}


.text-gray-700 {
    --tw-text-opacity: 1;
    color: rgb(55 65 81 / var(--tw-text-opacity, 1));
}

.text-lg {
    font-size: 1.125rem;
    line-height: 1.75rem;
}

.items-center {
    align-items: center;
}

.timeline {
    position: relative;
    padding-left: 2rem;
}

.py-1 {
    padding-top: 0.25rem;
    padding-bottom: 0.25rem;
}

.nav-container {
    background-color: white;
    width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0 !important;
}

/* 导航栏样式 */
.navbar {
    background-color: white;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}


.logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.logo i {
    color: var(--accent);
    margin-right: 10px;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    color: var(--dark);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    padding: 8px 0;
    position: relative;
}

.nav-links a:hover {
    color: var(--secondary);
}

.nav-links a.active {
    color: var(--secondary);
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--secondary);
}

@media (max-width: 768px) {
    .nav-container {
        width: 100%;
        flex-direction: column;
    }

    .logo {
        font-size: 16px;
    }

    .nav-links {
        margin-top: 12px;
        width: 100%;
        padding: 0 10px;
    }

    .nav-links li {
        font-size: 15px;
        margin-left: 10px;
        flex: 1;
        text-align: center;
    }
}

.hero {
    height: 155px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: 17px 0;
    text-align: center;
    margin-bottom: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero h1 {
    font-size: 2.2rem;
    margin-bottom: 7px;
    font-weight: 700;
    color: #fff;
}

.hero .stats-text {
    font-size: 1rem;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
    font-family: "SimHei", "Microsoft YaHei", sans-serif;
    /* 确保整段文字使用黑体 */
}

.hero .highlight {
    color: #f8f9fa;
    font-weight: 700;
    position: relative;
    padding: 0 3px;
}

.hero .highlight::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: rgba(255, 255, 255, 0.8);
    transform: scaleX(0);
    transform-origin: bottom right;
    transition: transform 0.3s ease;
}

.hero .highlight:hover::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #bbb;
    font-size: 0.9rem;
}