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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f8f9fa;
    color: #333;
    line-height: 1.6;
}

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #fff;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

.nav-links a {
    color: #fff;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    transition: background 0.3s;
}

.nav-links a:hover {
    background: rgba(255,255,255,0.2);
}

.hamburger {
    display: none;
    font-size: 2rem;
    cursor: pointer;
    color: #fff;
}

/* Hero 区域 */
.hero {
    padding: 4rem 2rem;
    color: #fff;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero p {
    font-size: 1.2rem;
    opacity: 0.9;
}

.singer-card {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.singer-avatar {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid #fff;
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.singer-info {
    text-align: left;
}

.singer-info h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.singer-info p {
    margin: 0.3rem 0;
}

/* 通用 section */
.section {
    max-width: 1200px;
    margin: 3rem auto;
    padding: 0 2rem;
}

.section h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
    color: #764ba2;
}

/* 新闻网格 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.news-card {
    background: #fff;
    border-radius: 15px;
    padding: 1.5rem;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(0,0,0,0.15);
}

.news-card h3 {
    color: #667eea;
    margin-bottom: 0.5rem;
}

.news-card p {
    color: #555;
}

/* 歌曲列表 */
.song-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.song-card {
    background: #fff;
    border-radius: 15px;
    padding: 1.5rem;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s;
}

.song-card:hover {
    transform: scale(1.02);
}

.song-card h3 {
    color: #764ba2;
    margin-bottom: 0.5rem;
}

.song-card audio {
    width: 100%;
    margin-top: 0.5rem;
}

/* 活动时间线 */
.event-timeline {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.event-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #fff;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    transition: background 0.3s;
}

.event-item:hover {
    background: #f0f0ff;
}

.event-date {
    font-weight: bold;
    color: #667eea;
}

.event-name {
    flex: 1;
    margin: 0 1rem;
    color: #333;
}

.event-location {
    color: #888;
}

/* 统计数据 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.5rem;
    text-align: center;
}

.stat-item {
    background: #fff;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
}

.stat-item h3 {
    color: #764ba2;
    margin-bottom: 0.5rem;
}

.stat-item p {
    font-size: 2rem;
    font-weight: bold;
    color: #667eea;
}

/* 留言板 */
.message-board {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.message-item {
    background: #fff;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    border-left: 4px solid #667eea;
}

.message-item strong {
    color: #764ba2;
}

.message-item small {
    color: #aaa;
}

/* 按钮 */
.btn {
    display: inline-block;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 0.8rem 2rem;
    border-radius: 30px;
    text-decoration: none;
    margin-top: 1.5rem;
    transition: transform 0.3s, box-shadow 0.3s;
    text-align: center;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 15px rgba(102, 126, 234, 0.4);
}

/* Footer */
footer {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 1.5rem;
    margin-top: 3rem;
}

footer a {
    color: #a29bfe;
    text-decoration: none;
}

/* 管理后台登录 */
.login-container {
    max-width: 400px;
    margin: 5rem auto;
    padding: 2rem;
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    text-align: center;
}

.login-container h2 {
    margin-bottom: 1.5rem;
    color: #764ba2;
}

.login-container input {
    width: 100%;
    padding: 0.8rem;
    margin: 0.5rem 0;
    border: 1px solid #ddd;
    border-radius: 10px;
    font-size: 1rem;
}

.login-container button {
    width: 100%;
    padding: 0.8rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border: none;
    border-radius: 30px;
    font-size: 1rem;
    cursor: pointer;
    margin-top: 1rem;
}

.error {
    color: #e74c3c;
    margin-bottom: 1rem;
}

.success {
    color: #27ae60;
    margin-bottom: 1rem;
}

/* 管理后台表单 */
.admin-main {
    max-width: 800px;
    margin: 2rem auto;
    padding: 0 2rem;
}

.admin-form {
    background: #fff;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
}

.admin-form label {
    display: block;
    margin: 1rem 0;
}

.admin-form input, .admin-form textarea {
    width: 100%;
    padding: 0.6rem;
    border: 1px solid #ddd;
    border-radius: 10px;
    font-size: 1rem;
}

.admin-form textarea {
    height: 100px;
    resize: vertical;
}

.admin-form button {
    padding: 0.8rem 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    font-size: 1rem;
    margin-top: 1rem;
}

/* 内页通用 */
.page-hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    text-align: center;
    padding: 3rem 1rem;
}

.page-hero h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.page-hero p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* 响应式 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        background: rgba(102, 126, 234, 0.95);
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        padding: 1rem;
        border-radius: 0 0 15px 15px;
    }

    .nav-links.active {
        display: flex;
    }

    .hamburger {
        display: block;
    }

    .singer-card {
        flex-direction: column;
        text-align: center;
    }

    .singer-info {
        text-align: center;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .event-item {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }
}