* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Microsoft YaHei', sans-serif;
}

:root {
    --primary-pink: #ffb6c1;
    --light-pink: #ffe4e9;
    --dark-pink: #ff8da1;
    --white: #ffffff;
    --gray: #f8f8f8;
    --shadow: rgba(255, 182, 193, 0.3);
}

body {
    background-color: #fff9fa;
    color: #555;
    line-height: 1.6;
    overflow-x: hidden;
}

/* 蝴蝶结背景 */
.bow-tie-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(255, 182, 193, 0.05) 0%, transparent 20%),
        radial-gradient(circle at 90% 30%, rgba(255, 182, 193, 0.05) 0%, transparent 20%),
        radial-gradient(circle at 50% 80%, rgba(255, 182, 193, 0.05) 0%, transparent 20%);
    z-index: -1;
}

/* 细闪效果 */
.glitter {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.glitter::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.8) 1px, transparent 2px),
        radial-gradient(circle at 40% 70%, rgba(255, 255, 255, 0.8) 1px, transparent 2px),
        radial-gradient(circle at 60% 20%, rgba(255, 255, 255, 0.8) 1px, transparent 2px),
        radial-gradient(circle at 80% 50%, rgba(255, 255, 255, 0.8) 1px, transparent 2px);
    background-size: 100px 100px;
    animation: glitterMove 15s linear infinite;
}

@keyframes glitterMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(-50px, -50px); }
}

/* 导航栏 */
header {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 4px 20px var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    padding: 0 5%;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    color: var(--dark-pink);
    font-weight: bold;
    font-size: 1.5rem;
}

.logo i {
    margin-right: 10px;
    font-size: 1.8rem;
}

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

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

.nav-menu a {
    text-decoration: none;
    color: #666;
    font-weight: 500;
    padding: 8px 12px;
    border-radius: 20px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-menu a:hover, .nav-menu a.active {
    color: var(--dark-pink);
    background-color: var(--light-pink);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 3px;
    background-color: var(--dark-pink);
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    transition: width 0.3s ease;
}

.nav-menu a:hover::after, .nav-menu a.active::after {
    width: 70%;
}

/* 主要内容区域 */
.main-container {
    margin-top: 80px;
    padding: 20px 5%;
    min-height: calc(100vh - 150px);
}

.page {
    display: none;
    animation: fadeIn 0.5s ease;
}

.page.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 首页样式 */
.home-page {
    text-align: center;
    padding: 40px 0;
}

.welcome-title {
    color: var(--dark-pink);
    font-size: 3rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.subtitle {
    color: #888;
    font-size: 1.2rem;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* 轮播图样式 */
.slider-container {
    max-width: 900px;
    margin: 0 auto 60px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px var(--shadow);
    position: relative;
}

.slider {
    display: flex;
    transition: transform 0.8s ease;
    height: 400px;
}

.slide {
    min-width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    position: relative;
}

.slide-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
    color: white;
    padding: 30px;
    text-align: left;
}

.slide-title {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.slide-desc {
    font-size: 1rem;
    opacity: 0.9;
}

.slider-controls {
    display: flex;
    justify-content: center;
    margin-top: 20px;
}

.slider-btn {
    background-color: var(--primary-pink);
    color: white;
    border: none;
    padding: 12px 20px;
    margin: 0 10px;
    border-radius: 30px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
}

.slider-btn:hover {
    background-color: var(--dark-pink);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(255, 141, 161, 0.4);
}

.slider-indicators {
    display: flex;
    justify-content: center;
    margin-top: 15px;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--light-pink);
    margin: 0 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    background-color: var(--dark-pink);
    transform: scale(1.2);
}

/* 页面标题样式 */
.page-title {
    color: var(--dark-pink);
    font-size: 2.5rem;
    text-align: center;
    margin: 30px 0 50px;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.page-title::after {
    content: '';
    position: absolute;
    width: 70%;
    height: 4px;
    background-color: var(--primary-pink);
    bottom: -10px;
    left: 15%;
    border-radius: 2px;
}

/* 个人介绍页面 */
.profile-container {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    align-items: center;
    justify-content: center;
    margin-bottom: 60px;
}

.profile-image {
    flex: 1;
    min-width: 300px;
    max-width: 400px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px var(--shadow);
}

.profile-image img {
    width: 100%;
    height: auto;
    display: block;
}

.profile-info {
    flex: 2;
    min-width: 300px;
    background-color: white;
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 20px var(--shadow);
}

.profile-info h3 {
    color: var(--dark-pink);
    margin-bottom: 20px;
    font-size: 1.8rem;
}

.info-item {
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
}

.info-item i {
    color: var(--dark-pink);
    margin-right: 15px;
    margin-top: 5px;
    font-size: 1.2rem;
}

/* 校园生活页面 */
.campus-life {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.campus-card {
    background-color: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 8px 20px var(--shadow);
    transition: transform 0.3s ease;
}

.campus-card:hover {
    transform: translateY(-10px);
}

.campus-img {
    height: 200px;
    width: 100%;
    object-fit: cover;
}

.campus-content {
    padding: 20px;
}

.campus-content h3 {
    color: var(--dark-pink);
    margin-bottom: 10px;
}

/* 娱乐页面 */
.entertainment-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.entertainment-section {
    background-color: white;
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 8px 20px var(--shadow);
}

.section-title {
    color: var(--dark-pink);
    font-size: 1.5rem;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
}

.section-title i {
    margin-right: 10px;
}

/* 五子棋游戏 */
.gobang-container {
    text-align: center;
}

#gobang-board {
    display: grid;
    grid-template-columns: repeat(15, 1fr);
    grid-template-rows: repeat(15, 1fr);
    width: 320px;
    height: 320px;
    margin: 0 auto 20px;
    background-color: #f0d0b6;
    border: 2px solid #8b4513;
    position: relative;
}

.gobang-cell {
    border-right: 1px solid #aaa;
    border-bottom: 1px solid #aaa;
    position: relative;
    cursor: pointer;
}

.gobang-cell:hover {
    background-color: rgba(255, 182, 193, 0.2);
}

.gobang-cell::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.piece {
    position: absolute;
    width: 80%;
    height: 80%;
    border-radius: 50%;
    top: 10%;
    left: 10%;
    z-index: 2;
}

.piece.black {
    background-color: #000;
    box-shadow: inset -2px -2px 5px rgba(255,255,255,0.1);
}

.piece.white {
    background-color: #fff;
    box-shadow: inset 2px 2px 5px rgba(0,0,0,0.2);
}

.game-controls {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 20px;
}

.game-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 20px;
    background-color: var(--primary-pink);
    color: white;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
}

.game-btn:hover {
    background-color: var(--dark-pink);
    transform: translateY(-3px);
}

/* 代码帮助小程序 */
.code-helper textarea {
    width: 100%;
    height: 150px;
    padding: 15px;
    border: 2px solid var(--light-pink);
    border-radius: 10px;
    resize: vertical;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    margin-bottom: 15px;
}

.code-helper button {
    background-color: var(--dark-pink);
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
}

.code-helper button:hover {
    background-color: #ff6b8b;
    transform: translateY(-3px);
}

.code-result {
    margin-top: 20px;
    padding: 15px;
    background-color: #f9f9f9;
    border-radius: 10px;
    border-left: 4px solid var(--dark-pink);
    font-family: 'Courier New', monospace;
    font-size: 14px;
    white-space: pre-wrap;
    min-height: 80px;
}

/* 校园摄影 */
.campus-photos {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.photo-item {
    text-align: center;
}

.photo-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 10px;
}

.photo-caption {
    margin-top: 10px;
    color: #666;
    font-style: italic;
}

/* 音乐推荐 */
.music-list {
    margin: 15px 0;
    padding-left: 20px;
}

.music-list li {
    margin-bottom: 8px;
}

/* 专业页面 */
.major-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.knowledge-card {
    background-color: white;
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 8px 20px var(--shadow);
}

.knowledge-card h3 {
    color: var(--dark-pink);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

/* 留言板 */
.message-board {
    max-width: 800px;
    margin: 0 auto 60px;
    background-color: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 8px 20px var(--shadow);
}

.message-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin-bottom: 8px;
    color: #666;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    padding: 12px 15px;
    border: 2px solid var(--light-pink);
    border-radius: 10px;
    font-size: 16px;
    transition: border 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--dark-pink);
}

.submit-btn {
    background-color: var(--dark-pink);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 30px;
    cursor: pointer;
    font-size: 18px;
    font-weight: bold;
    transition: all 0.3s ease;
    align-self: flex-start;
}

.submit-btn:hover {
    background-color: #ff6b8b;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(255, 107, 139, 0.4);
}

.message-list {
    margin-top: 40px;
}

.message-item {
    background-color: #f9f9f9;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 20px;
    border-left: 4px solid var(--primary-pink);
}

.message-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    color: #888;
    font-size: 0.9rem;
}

.message-content {
    line-height: 1.5;
}

/* 页脚 */
footer {
    background-color: white;
    text-align: center;
    padding: 30px 5%;
    margin-top: 50px;
    border-top: 1px solid var(--light-pink);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-logo {
    color: var(--dark-pink);
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.copyright {
    color: #888;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        padding: 15px 0;
    }
    
    .nav-menu {
        margin-top: 15px;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav-menu li {
        margin: 5px 10px;
    }
    
    .main-container {
        margin-top: 120px;
    }
    
    .welcome-title {
        font-size: 2.2rem;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .slider-container {
        height: 300px;
    }
    
    .slide-title {
        font-size: 1.4rem;
    }
}

@media (max-width: 480px) {
    .welcome-title {
        font-size: 1.8rem;
    }
    
    .slider-container {
        height: 250px;
    }
    
    .entertainment-container,
    .major-container {
        grid-template-columns: 1fr;
    }
    
    #gobang-board {
        width: 280px;
        height: 280px;
    }
}