* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft Yahei", sans-serif;
}

:root {
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --success: #10b981;
    --success-hover: #059669;
    --text: #1f2937;
    --text-secondary: #6b7280;
    --bg: #f3f4f6;
    --card: #ffffff;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

body {
    background: var(--bg);
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

.header {
    text-align: center;
    padding: 40px 0 30px;
}

.header h1 {
    color: var(--text);
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.header p {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 25px;
}

.search-box {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.search-box input {
    flex: 1;
    min-width: 250px;
    padding: 14px 18px;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    font-size: 16px;
    transition: all 0.2s;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.btn {
    padding: 14px 32px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.2s;
    text-decoration: none;
    display: inline-block;
}

.btn:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 14px;
}

.btn-green {
    background: var(--success);
}

.btn-green:hover {
    background: var(--success-hover);
}

.btn-loading {
    background: #9ca3af;
    cursor: not-allowed;
    transform: none;
}

.hot-search {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 30px;
}

.hot-tag {
    padding: 6px 12px;
    background: var(--card);
    color: var(--text-secondary);
    border-radius: 20px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid #e5e7eb;
}

.hot-tag:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.err {
    color: #dc2626;
    text-align: center;
    padding: 16px;
    background: #fef2f2;
    border-radius: 12px;
    margin-bottom: 20px;
}

.empty {
    text-align: center;
    padding: 50px;
    color: var(--text-secondary);
}

.music-list {
    margin-top: 20px;
}

.music-card {
    background: var(--card);
    padding: 20px;
    border-radius: 16px;
    margin-bottom: 18px;
    display: flex;
    gap: 18px;
    align-items: center;
    flex-wrap: wrap;
    box-shadow: var(--shadow);
    transition: all 0.2s;
}

.music-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.music-cover {
    width: 80px;
    height: 80px;
    border-radius: 12px;
    object-fit: cover;
    box-shadow: var(--shadow);
}

.music-info {
    flex: 1;
    min-width: 250px;
}

.music-info h3 {
    color: var(--text);
    font-size: 1.25rem;
    margin-bottom: 6px;
}

.music-info p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 12px;
    line-height: 1.5;
}

.music-btns {
    display: flex;
    gap: 10px;
}

audio {
    width: 100%;
    margin-top: 8px;
    border-radius: 100px;
}

footer {
    text-align: center;
    padding: 30px 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

@media (max-width: 640px) {
    .header h1 {
        font-size: 2rem;
    }
    .music-card {
        flex-direction: column;
        text-align: center;
    }
    .music-info {
        width: 100%;
    }
    .music-btns {
        width: 100%;
        justify-content: center;
    }
}