/* 全局样式 */
:root {
    --primary-color: #1a237e;
    --primary-light: #3949ab;
    --primary-dark: #0d1642;
    --text-color: #333;
    --bg-light: #f5f5f5;
    --transition-normal: all 0.3s ease;
    --shadow-normal: 0 4px 8px rgba(0,0,0,0.1);
    --shadow-hover: 0 8px 16px rgba(0,0,0,0.15);
}

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

body {
    font-family: "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #fff;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* 头部样式 */
header {
    background-color: var(--primary-color);
    color: white;
    position: relative;
    z-index: 100;
    box-shadow: var(--shadow-normal);
}

.banner {
    position: relative;
    height: 400px;
    overflow: hidden;
}

.banner::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0.3), rgba(0,0,0,0.5));
}

.banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.02);
    transition: transform 0.5s ease;
}

.banner:hover img {
    transform: scale(1);
}

.banner h1 {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2.5em;
    text-align: center;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    z-index: 1;
    width: 90%;
    max-width: 800px;
}

/* 导航样式 */
nav {
    background-color: var(--primary-light);
    padding: 1em 0;
    position: sticky;
    top: 0;
    box-shadow: var(--shadow-normal);
}

nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
    flex-wrap: wrap;
    gap: 1em;
    padding: 0 1em;
}

nav a {
    color: white;
    text-decoration: none;
    padding: 0.8em 1.5em;
    border-radius: 4px;
    transition: var(--transition-normal);
    font-weight: 500;
    letter-spacing: 0.5px;
}

nav a:hover,
nav a.active {
    background-color: rgba(255,255,255,0.1);
    transform: translateY(-2px);
}

/* 主要内容样式 */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3em 2em;
}

.hero {
    text-align: center;
    margin-bottom: 4em;
    padding: 2em;
    background-color: var(--bg-light);
    border-radius: 12px;
    box-shadow: var(--shadow-normal);
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h2 {
    font-size: 2.2em;
    color: var(--primary-color);
    margin-bottom: 1em;
    position: relative;
    padding-bottom: 0.5em;
}

.hero h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
}

.hero img {
    max-width: 300px;
    border-radius: 12px;
    margin: 2em auto;
    box-shadow: var(--shadow-normal);
    transition: var(--transition-normal);
}

.hero img:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-hover);
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2em;
    margin-top: 3em;
}

.feature-item {
    text-align: center;
    padding: 2em;
    border-radius: 12px;
    background-color: var(--bg-light);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-normal);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.feature-item img {
    width: 200px;
    height: 200px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 1.5em;
    transition: var(--transition-normal);
}

.feature-item:hover img {
    transform: scale(1.05);
}

.feature-item h3 {
    color: var(--primary-color);
    margin-bottom: 1em;
    font-size: 1.3em;
}

/* 页脚样式 */
footer {
    background-color: var(--primary-dark);
    color: white;
    text-align: center;
    padding: 2em;
    margin-top: 4em;
    box-shadow: 0 -4px 8px rgba(0,0,0,0.1);
}

/* 生平事迹页面样式 */
.life-page {
    padding: 2em;
}

.timeline {
    position: relative;
    padding: 2em 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary-color), var(--primary-light));
    border-radius: 2px;
}

.timeline-item {
    margin-bottom: 3em;
    position: relative;
}

.timeline-content {
    background-color: var(--bg-light);
    padding: 2em;
    border-radius: 12px;
    box-shadow: var(--shadow-normal);
    transition: var(--transition-normal);
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

/* 革命精神页面样式 */
.spirit-page {
    padding: 2em;
}

.spirit-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2em;
}

.spirit-item {
    background-color: var(--bg-light);
    padding: 2em;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow-normal);
    transition: var(--transition-normal);
}

.spirit-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.spirit-quote {
    margin-top: 4em;
    text-align: center;
}

.spirit-quote blockquote {
    max-width: 800px;
    margin: 0 auto;
    padding: 3em 2em;
    background-color: var(--bg-light);
    border-radius: 12px;
    box-shadow: var(--shadow-normal);
    position: relative;
}

.spirit-quote blockquote::before {
    content: '"';
    position: absolute;
    top: 0;
    left: 20px;
    font-size: 5em;
    color: var(--primary-color);
    opacity: 0.2;
}

/* 历史照片页面样式 */
.memory-page {
    padding: 2em;
}

.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2em;
}

.gallery-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-normal);
    transition: var(--transition-normal);
}

.gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: white;
    padding: 2em 1em 1em;
    transform: translateY(100%);
    transition: var(--transition-normal);
}

.gallery-item:hover .gallery-caption {
    transform: translateY(0);
}

/* 历史影响页面样式 */
.influence-page {
    padding: 2em;
}

.influence-content {
    display: flex;
    flex-direction: column;
    gap: 3em;
}

.influence-section {
    display: flex;
    align-items: center;
    gap: 3em;
    padding: 2.5em;
    background-color: var(--bg-light);
    border-radius: 12px;
    box-shadow: var(--shadow-normal);
    transition: var(--transition-normal);
}

.influence-section:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.influence-section img {
    width: 40%;
    max-width: 400px;
    border-radius: 12px;
    object-fit: cover;
    transition: var(--transition-normal);
}

.influence-section:hover img {
    transform: scale(1.05);
}

.influence-text h3 {
    color: var(--primary-color);
    font-size: 1.5em;
    margin-bottom: 1em;
    position: relative;
    padding-bottom: 0.5em;
}

.influence-text h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--primary-color);
}

/* 响应式设计 */
@media (max-width: 992px) {
    .banner h1 {
        font-size: 2em;
    }

    .hero h2 {
        font-size: 1.8em;
    }

    .influence-section {
        padding: 1.5em;
        gap: 2em;
    }
}

@media (max-width: 768px) {
    .banner {
        height: 300px;
    }

    .banner h1 {
        font-size: 1.6em;
    }

    nav ul {
        flex-direction: column;
        align-items: center;
    }

    nav a {
        width: 100%;
        text-align: center;
    }

    .hero {
        padding: 1.5em;
    }

    .influence-section,
    .influence-section:nth-child(even) {
        flex-direction: column;
        text-align: center;
        padding: 1.5em;
    }

    .influence-section img {
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }

    .influence-text h3::after {
        left: 50%;
        transform: translateX(-50%);
    }
}

@media (max-width: 480px) {
    main {
        padding: 2em 1em;
    }

    .banner h1 {
        font-size: 1.4em;
    }

    .hero h2 {
        font-size: 1.5em;
    }
}