body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #ff9a9e 0%, #fad0c4 100%);
    margin: 0;
    padding: 0;
    color: #333;
    text-align: center;
    position: relative;
    overflow-x: hidden;
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
    z-index: 10;
    padding-bottom: 60px; /* 为相识时间留出空间 */
}

h1 {
    color: #d23669;
    font-size: 2.5em;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
}

.heart {
    font-size: 3em;
    color: red;
    animation: beat 1s infinite alternate;
    text-shadow: 0 0 10px rgba(255,0,0,0.5);
    margin: 20px auto;
}

/* 可点击的爱心 */
.clickable-heart {
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-block;
    position: relative;
}

.clickable-heart:hover {
    transform: scale(1.3);
    filter: brightness(1.2);
}

.clickable-heart:active {
    transform: scale(1.1);
}

@keyframes beat {
    to { transform: scale(1.2); }
}

/* 半透明按钮 - 修复透明度 */
.btn {
    background-color: rgba(210, 54, 105, 0.7) !important; /* 强制半透明 */
    color: white !important; /* 字体不透明 */
    border: none;
    padding: 10px 20px;
    margin: 10px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 1em;
    transition: all 0.3s;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    backdrop-filter: blur(5px); /* 毛玻璃效果 */
    border: 1px solid rgba(255,255,255,0.3);
}

.btn:hover {
    background-color: rgba(165, 28, 75, 0.8) !important;
    transform: scale(1.05);
    box-shadow: 0 6px 12px rgba(0,0,0,0.3);
}

/* 爱心按钮 */
.btn-love {
    background: linear-gradient(45deg, rgba(255, 51, 102, 0.7), rgba(255, 107, 107, 0.7)) !important;
    margin-top: 15px;
}

.btn-close {
    background: rgba(108, 117, 125, 0.7) !important;
    margin-top: 10px;
}

.hidden {
    display: none;
}

/* 简化彩带样式 - 只保留一条 */
.ribbon {
    position: fixed;
    width: 100%;
    height: 25px; /* 更细的彩带 */
    background: linear-gradient(45deg, #ff6b8b, #ff8e53, #ffd166);
    top: 0;
    left: 0;
    z-index: 5;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    opacity: 0.7;
}

.ribbon:before, .ribbon:after {
    content: '';
    position: absolute;
    width: 0;
    height: 0;
    border-style: solid;
}

.ribbon:before {
    border-width: 12.5px 15px 12.5px 0;
    border-color: transparent #ff6b8b transparent transparent;
    left: -15px;
}

.ribbon:after {
    border-width: 12.5px 0 12.5px 15px;
    border-color: transparent transparent transparent #ff6b8b;
    right: -15px;
}

/* 气球样式 */
.balloon {
    position: fixed;
    width: 35px;
    height: 45px;
    border-radius: 50%;
    z-index: 2;
    pointer-events: none;
    opacity: 0.7;
}

.balloon:before {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 12px;
    background-color: rgba(0,0,0,0.2);
}

/* 相识时间样式 */
#anniversary {
    position: fixed;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.9);
    padding: 8px 16px;
    border-radius: 20px;
    font-style: italic;
    font-size: 0.9em;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    transition: opacity 0.3s ease;
    max-width: 90%;
    text-align: center;
}

/* 小屏幕时隐藏相识时间 */
@media (max-height: 600px), (max-width: 768px) {
    #anniversary {
        opacity: 0;
        pointer-events: none;
    }
}

/* 优化文本框样式 */
#loveLetter {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    padding: 25px;
    margin: 20px 0;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    border-left: 5px solid #d23669;
    text-align: left;
    line-height: 1.6;
}

#loveLetter h2 {
    color: #d23669;
    text-align: center;
    margin-bottom: 20px;
}

#loveLetter p {
    margin-bottom: 15px;
    font-size: 1.1em;
}

/* 惊喜内容样式 */
.surprise-container {
    background: linear-gradient(135deg, rgba(255, 236, 210, 0.95), rgba(252, 182, 159, 0.95));
    border-radius: 20px;
    padding: 30px;
    margin: 20px 0;
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
    border: 3px dashed #ff6b8b;
    position: relative;
    animation: fadeInUp 0.8s ease-out;
    backdrop-filter: blur(10px);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.surprise-box {
    position: relative;
}

.floating-hearts {
    font-size: 2em;
    animation: float 3s ease-in-out infinite;
    margin: 15px 0;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.surprise-message {
    font-size: 1.3em;
    color: #d23669;
    font-weight: bold;
    margin: 20px 0;
}

.photo-frame {
    width: 200px;
    height: 200px;
    margin: 20px auto;
    border: 10px solid #ff9a9e;
    border-radius: 15px;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
}

.frame-content {
    font-size: 1.5em;
    color: #ff6b8b;
    font-weight: bold;
}

/* 相册样式 */
.photo-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.photo-item img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

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

/* 网站链接样式 */
.website-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.website-card {
    text-decoration: none;
    color: #333;
    transition: transform 0.3s;
    background: rgba(255, 255, 255, 0.9);
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    backdrop-filter: blur(5px);
}

.website-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
}

.website-card img {
    width: 50px;
    height: 50px;
    object-fit: contain;
}

/* 粒子效果容器 */
#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
}

/* 爱心样式 */
.floating-heart {
    position: fixed;
    font-size: 20px;
    z-index: 2;
    pointer-events: none;
    opacity: 0.8;
}
/* 音乐播放器样式 */
.music-playlist {
    margin-top: 20px;
}

.music-item {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 10px;
    padding: 15px;
    margin-bottom: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.music-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.music-cover {
    width: 60px;
    height: 60px;
    border-radius: 8px;
    object-fit: cover;
    margin-right: 15px;
}

.music-info {
    flex: 1;
    text-align: left;
}

.music-title {
    font-weight: bold;
    color: #d23669;
    margin-bottom: 5px;
}

.music-artist {
    font-size: 0.9em;
    color: #666;
}

.play-btn {
    background: rgba(210, 54, 105, 0.7);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 15px;
    cursor: pointer;
    transition: all 0.3s;
}

.play-btn:hover {
    background: rgba(165, 28, 75, 0.8);
    transform: scale(1.05);
}

/* 当前播放的音乐高亮 */
.music-item.playing {
    background: rgba(255, 154, 158, 0.2);
    border-left: 4px solid #d23669;
}

#audioPlayer {
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.9);
}