/* ===== 基础样式 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #ff3366;
    --secondary-color: #4a6fa5;
    --bg-color: #ffffff;
    --text-color: #333333;
    --card-color: #f8f9fa;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

[data-theme="dark"] {
    --primary-color: #ff6b9d;
    --secondary-color: #6b9fff;
    --bg-color: #1a1a2e;
    --text-color: #e6e6e6;
    --card-color: #16213e;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    transition: var(--transition);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-color);
}

/* ===== 标题区域 ===== */
.header {
    text-align: center;
    padding: 3rem 0 2rem;
    border-bottom: 2px solid rgba(255, 51, 102, 0.1);
    margin-bottom: 2rem;
}

.blog-title {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.concert-info {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--card-color);
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    font-weight: 500;
    box-shadow: var(--shadow);
}

.info-item i {
    color: var(--primary-color);
}

/* ===== 演唱会标题 ===== */
.concert-title-box {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem;
    background: linear-gradient(135deg, 
        rgba(255, 51, 102, 0.1) 0%, 
        rgba(74, 111, 165, 0.1) 100%);
    border-radius: var(--border-radius);
}

.concert-title {
    font-size: 2.2rem;
    color: var(--text-color);
    margin-bottom: 1rem;
    font-weight: 700;
}

.theme-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--primary-color);
    color: white;
    padding: 0.6rem 1.2rem;
    border-radius: 20px;
    font-size: 0.95rem;
}

/* ===== 通用区块样式 ===== */
.section-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid rgba(255, 51, 102, 0.2);
}

.section-header h3 {
    font-size: 1.6rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.8rem;
}

.section-divider {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.section-content {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-color);
    opacity: 0.9;
}

.section-content p {
    margin-bottom: 1.2rem;
}

/* ===== 记忆卡片 ===== */
.memory-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.memory-card {
    background: var(--card-color);
    padding: 1.8rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-left: 4px solid var(--primary-color);
}

.memory-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(255, 51, 102, 0.15);
}

.memory-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.memory-card h4 {
    color: var(--text-color);
    margin-bottom: 0.8rem;
    font-size: 1.2rem;
}

.memory-card p {
    color: var(--text-color);
    opacity: 0.8;
    font-size: 1rem;
    line-height: 1.6;
}

/* ===== 感受输入 ===== */
.feeling-input {
    margin-bottom: 2rem;
}

textarea {
    width: 100%;
    height: 150px;
    padding: 1.2rem;
    border: 2px solid #e6e6e6;
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 1rem;
    resize: vertical;
    margin-bottom: 1.2rem;
    background: var(--card-color);
    color: var(--text-color);
    transition: var(--transition);
}

textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 51, 102, 0.1);
}

.input-actions {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 0.8rem 1.8rem;
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    font-weight: 500;
}

.save-btn {
    background: var(--primary-color);
    color: white;
}

.save-btn:hover {
    background: #ff1a52;
    transform: translateY(-2px);
}

.clear-btn {
    background: #e6e6e6;
    color: #666;
}

.clear-btn:hover {
    background: #d6d6d6;
    transform: translateY(-2px);
}

/* ===== 已保存的感受 ===== */
.saved-feeling {
    background: var(--card-color);
    padding: 1.8rem;
    border-radius: var(--border-radius);
    border: 2px dashed var(--primary-color);
}

.saved-feeling h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

#feelingDisplay {
    font-style: italic;
    line-height: 1.7;
    color: var(--text-color);
    opacity: 0.9;
    min-height: 1.5em;
}

/* ===== 计数器 ===== */
.counters {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.counter-item {
    text-align: center;
    padding: 2rem;
    background: var(--card-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.counter-number {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: 0.8rem;
}

.counter-label {
    color: var(--text-color);
    opacity: 0.8;
    font-size: 1rem;
}

/* ===== 倒计时 ===== */
.time-display {
    text-align: center;
    background: linear-gradient(135deg, 
        rgba(255, 51, 102, 0.1) 0%, 
        rgba(74, 111, 165, 0.1) 100%);
    padding: 2rem;
    border-radius: var(--border-radius);
}

.time-unit {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.time-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    min-width: 60px;
}

.time-label {
    font-size: 1rem;
    color: var(--text-color);
    opacity: 0.8;
    align-self: flex-end;
    margin-bottom: 0.5rem;
}

.time-note {
    color: var(--text-color);
    opacity: 0.7;
    font-style: italic;
}

/* ===== 音乐播放器 ===== */
.music-player {
    background: var(--card-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.player-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.player-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 25px;
    font-size: 1.1rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    transition: var(--transition);
}

.player-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 51, 102, 0.3);
}

.player-btn.playing i {
    animation: spin 2s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.volume-control {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.volume-control i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.volume-control input {
    width: 120px;
}

/* ===== 歌曲列表 ===== */
.song-list {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.song-item {
    display: flex;
    align-items: center;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    transition: var(--transition);
    cursor: pointer;
}

.song-item:hover {
    background: rgba(255, 51, 102, 0.1);
}

.song-item.active {
    background: rgba(255, 51, 102, 0.2);
    border-left: 3px solid var(--primary-color);
}

.song-number {
    width: 40px;
    color: var(--primary-color);
    font-weight: 600;
}

.song-title {
    flex: 1;
    color: var(--text-color);
}

.song-duration {
    color: #666;
    font-size: 0.9rem;
}

/* ===== 页脚 ===== */
.footer {
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 2px solid rgba(255, 51, 102, 0.1);
}

.signature {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    justify-content: center;
}

.signature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: bold;
}

.quote {
    font-style: italic;
    font-size: 1.2rem;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.author {
    color: var(--text-color);
    opacity: 0.7;
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.footer-btn {
    background: var(--card-color);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.footer-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.copyright {
    text-align: center;
    color: var(--text-color);
    opacity: 0.6;
    font-size: 0.9rem;
    margin-top: 1rem;
}

/* ===== 消息提示 ===== */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 1000;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

/* ===== 响应式设计 ===== */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    .blog-title {
        font-size: 2rem;
    }
    
    .concert-title {
        font-size: 1.8rem;
    }
    
    .memory-content {
        grid-template-columns: 1fr;
    }
    
    .counters {
        grid-template-columns: 1fr;
    }
    
    .time-unit {
        gap: 0.5rem;
    }
    
    .time-number {
        font-size: 2rem;
        min-width: 50px;
    }
    
    .player-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .signature {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .concert-info {
        flex-direction: column;
        gap: 1rem;
    }
    
    .input-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}