/* 基础样式重置 - 合并重复的通配符选择器 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 页面基础样式 - 整合body和html样式 */
body, html {
    margin: 0;
    padding: 0;
    overflow-x: hidden; /* 禁止水平滚动 */
    overflow-y: hidden; /* 禁止垂直滚动 */
    font-family: Arial, sans-serif;
    height: 100vh;
    display: flex;
    background-color: pink;
    position: relative;
}

/* 侧边栏样式 - 合并重复定义 */
.sidebar {
    width: 200px;
    height: 100%;
    background: rgba(255, 255, 255, 0.3);
    position: fixed;
    left: 0;
    top: 0;
    z-index: 100;
    padding: 20px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    backdrop-filter: blur(5px);
    border-right: 1px solid rgba(255, 255, 255, 0.5);
    overflow-y: auto;
}

/* 头像样式 - 去重整合 */
.avatar {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    object-fit: cover;
    cursor: pointer;
    border: 3px solid white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s;
    margin-bottom: 15px;
}

.avatar:hover {
    transform: scale(1.1);
}

/* 侧边栏按钮 - 合并重复样式 */
.sidebar-btn {
    width: 150px;
    padding: 12px;
    margin: 10px 0;
    text-align: center;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.4);
    border-radius: 20px;
    font-size: 0.9em;
    color: #d46b9c;
    font-weight: bold;
    transition: all 0.3s;
    border: none;
    backdrop-filter: blur(5px);
}

.sidebar-btn:hover {
    background: rgba(255, 255, 255, 0.7);
    transform: translateY(-2px);
}

/* 侧边栏弹窗（个人介绍/联系方式/宣言）- 整合共性样式 */
.profile, .contact, .declaration {
    display: none;
    margin-top: 15px;
    background: rgba(255, 255, 255, 0.95);
    padding: 15px;
    border-radius: 10px;
    max-width: 200px;
    font-size: 0.9em;
    color: #333;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    backdrop-filter: blur(5px);
    z-index: 1000;
    max-height: 200px; /* 固定高度并启用滚动 */
    overflow-y: auto;
    overflow-x: hidden;
}

.profile.show, .contact.show, .declaration.show {
    display: block;
}

.profile h3, .contact h3 {
    color: #d46b9c;
    margin-bottom: 8px;
}

/* 计时器样式 */
.timer {
    margin-top: 15px;
    background: rgba(255, 255, 255, 0.9);
    padding: 10px 15px;
    border-radius: 15px;
    font-size: 0.85em;
    color: #d46b9c;
    font-weight: bold;
    text-align: center;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(5px);
    width: 150px;
    word-wrap: break-word;
}

/* 主内容区域 - 整合首页和文章页样式 */
.main-content {
    margin-left: 200px;
    width: calc(100% - 200px);
    height: 100vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    padding: 20px;
    padding-bottom: 20px;
}

/* 照片轮播容器 */
.photo-container {
    width: 90%;
    max-width: 800px;
    margin: 15px auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
}

.photo-carousel {
    width: 100%;
    height: 220px;
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
    background: #f8f8f8;
}

/* 照片网格与项目 - 统一照片样式 */
.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 10px;
    width: 95%;
    height: 100%;
}

.photo-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    z-index: 1;
    transition: opacity 1s ease-in-out;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.1);
}

.photo-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
    border-radius: 8px;
}

.photo-item:hover {
    transform: scale(1.03);
}

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

.photo-item.active {
    opacity: 1;
    z-index: 3;
}

/* 媒体图标样式 */
.media-icon {
    display: inline-block;
    width: 18px;
    height: 18px;
    margin-right: 8px;
    vertical-align: middle;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
}

.photo-icon {
    background-image: url('./images/photo.svg');
}

.music-icon {
    background-image: url('./images/music.svg');
}

.video-icon {
    background-image: url('./images/video.svg');
}

/* 照片墙文案 */
.photo-wall-caption {
    text-align: center;
    font-size: 1em;
    font-weight: 500;
    margin: 12px 0 0;
    padding: 8px 16px;
    border-radius: 20px;
    background: linear-gradient(45deg, #a32929, #c74d27, #0e4d64);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
    max-width: 90%;
    backdrop-filter: blur(4px);
    background-color: rgba(255, 255, 255, 0.6);
}

/* 信件列表样式 */
.letter-container {
    flex: 1;
    padding: 0 15px 15px;
    overflow-y: auto;
}

.letter-list {
    list-style: none;
}

.letter-item {
    background: white;
    border-radius: 15px;
    padding: 15px;
    margin-bottom: 15px;
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: all 0.3s;
    border-left: 5px solid #ff6b9d;
}

.letter-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

/* 页面标题 */
h1.page-title {
    font-size: 2rem;
    text-align: center;
    margin: 30px 0 20px;
    font-weight: bold;
    letter-spacing: 6px;
    background: linear-gradient(45deg, #ff6b6b, #feca57, #48dbfb, #1dd1a1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
    opacity: 0.8;
    animation: fadeInOut 2.5s ease-in-out infinite alternate;
}

/* 信件日期与预览 */
.letter-date {
    color: #888;
    font-size: 0.9em;
    margin-bottom: 8px;
}

.letter-preview {
    color: #555;
    font-size: 0.95em;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.letter-title {
    background: linear-gradient(45deg, #ff6b6b, #feca57, #48dbfb, #1dd1a1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

/* 爱心动画 */
.heart {
    position: absolute;
    font-size: 18px;
    opacity: 0.7;
    z-index: 1;
    pointer-events: none;
}

/* 背景音乐播放器 */
/* 音乐播放器外层容器 */
.music-player-wrapper {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
    box-sizing: border-box;
}

/* 音乐播放器容器 */
.bg-music-player {
    background: linear-gradient(145deg, #1a1a2e, #16213e);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    width: 100%;
    box-sizing: border-box;
    border-radius: 12px 12px 0 0;
}

.bg-music-player:hover {
    background: linear-gradient(145deg, #16213e, #0f3460);
}

.bg-music-player h3 {
    margin-bottom: 10px;
    text-align: center;
}

.player-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 15px;
    color: #e9e9e9;
}

.song-info {
    flex: 1;
}

.song-title {
    font-size: 0.9em;
    font-weight: 500;
}

.player-controls {
    display: flex;
    gap: 10px;
}

.control-btn {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: #fff;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    font-size: 0.8em;
}

.control-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.control-btn.close {
    background: rgba(255, 87, 87, 0.2);
}

.control-btn.close:hover {
    background: rgba(255, 87, 87, 0.3);
    transform: scale(1.1) rotate(90deg);
}

.progress-container {
    height: 2px;
    background: rgba(255, 255, 255, 0.1);
}

.progress-bar {
    height: 100%;
    width: 100%;
    cursor: pointer;
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #ff6b6b, #feca57);
    transition: width 0.1s linear;
}

/* 播放提示 */
.play-hint {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: #ff6b6b;
    color: white;
    padding: 10px 20px;
    border-radius: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    z-index: 2000;
    font-size: 0.9em;
    animation: slideDown 0.3s ease;
}

/* 歌词样式 */
.lyrics-container {
    max-height: 120px;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 10px 0;
    display: block;
    width: 100%;
    background: linear-gradient(145deg, #1a1a2e, #16213e);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    box-sizing: border-box;
}

.lyrics-container.hidden {
    max-height: 0;
    padding: 0;
}

.lyrics-content {
    text-align: center;
    color: #e9e9e9;
    font-size: 0.9em;
    line-height: 1.6;
    transition: opacity 0.2s ease;
}

.lyrics-line {
    opacity: 0.7;
    transition: all 0.2s ease;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 80%;
    margin: 0 auto;
}

.lyrics-line.current {
    opacity: 1;
    font-weight: 500;
    font-size: 1.1em;
    color: #ff6b6b;
    text-shadow: 0 0 5px rgba(255, 107, 107, 0.3);
}

/* 文章页样式 */
.back-btn {
    display: inline-block;
    background: rgba(255, 255, 255, 0.9);
    color: #d46b9c;
    padding: 10px 20px;
    border-radius: 20px;
    text-decoration: none;
    font-weight: bold;
    margin-bottom: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
}

.back-btn:hover {
    background: rgba(255, 255, 255, 1);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.article-title {
    color: #d46b9c;
    font-size: 1.8em;
    margin-bottom: 10px;
    font-weight: bold;
}

.article-date {
    color: #888;
    font-size: 1em;
    margin-bottom: 20px;
}

.article-content {
    line-height: 1.8;
    color: #444;
    font-size: 1.1em;
    margin-bottom: 30px;
    white-space: pre-line;
}

/* 媒体内容容器 */
.media-container {
    margin: 20px 0;
    padding: 15px;
    border-radius: 10px;
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    text-align: center;
}

.media-container h3 {
    color: #333;
    margin-bottom: 10px;
}

video, audio {
    width: 100%;
    max-width: 600px;
    border-radius: 8px;
    display: block;
    margin: 0 auto;
}

.article-photos {
    margin: 20px auto;
    max-width: 800px;
}

.article-photos-title {
    color: #d46b9c;
    font-weight: bold;
    margin-bottom: 15px;
    font-size: 1.2em;
}

/* 动画关键帧 - 去重 */
@keyframes slideDown {
    from {
        transform: translateX(-50%) translateY(-20px);
        opacity: 0;
    }
    to {
        transform: translateX(-50%);
        opacity: 1;
    }
}

@keyframes fadeInOut {
    from { opacity: 0.8; }
    to { opacity: 1; }
}

/* 响应式设计 - 整合断点样式 */
@media (max-width: 768px) {
    .sidebar {
        width: 150px;
    }

    .avatar {
        width: 70px;
        height: 70px;
    }

    .sidebar-btn {
        width: 120px;
        padding: 10px;
        font-size: 0.8em;
    }

    .main-content {
        margin-left: 150px;
        width: calc(100% - 150px);
        padding: 15px;
    }

    .photo-container {
        max-height: 35vh;
    }

    .photo-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }

    .photo-item {
        height: 120px;
    }

    .letter-container {
        padding: 0 10px 10px;
    }

    .letter-item {
        padding: 12px;
        margin-bottom: 12px;
    }

    .article-title {
        font-size: 1.5em;
    }

    .photo-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }

    /* 背景音乐响应式 */
    .bg-music-player {
        padding: 6px 10px;
    }

    .song-title {
        font-size: 0.8em;
    }

    .control-btn {
        width: 25px;
        height: 25px;
        font-size: 0.7em;
    }

    /* 歌词响应式 */
    .lyrics-content {
        font-size: 0.8em;
    }

    .lyrics-line {
        max-width: 90%;
    }
}

@media (max-width: 480px) {
    .sidebar {
        width: 100%;
        position: relative;
        height: auto;
    }

    .main-content {
        margin-left: 0;
        width: 100%;
    }

    .photo-container {
        max-height: 30vh;
    }

    .photo-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)) || 1fr;
    }

    .photo-item {
        height: 100px;
    }

    .photo-item img {
        height: 200px;
    }

    video {
        width: 100%;
    }
}