/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: url('../images/background.jpg') center center/cover no-repeat fixed;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* 背景装饰 */
.background-decoration {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: -1;
    opacity: 0.1;
    pointer-events: none;
}

.xianyu-logo {
    font-size: 48px;
    font-weight: bold;
    color: #666;
    margin-bottom: 10px;
}

.xianyu-id {
    font-size: 16px;
    color: #999;
    text-align: center;
}

/* 胶囊式音乐播放器 */
.music-player {
    position: fixed;
    bottom: 30px;
    left: 30px;
    background: rgba(255, 255, 255, 0.5) !important;
    backdrop-filter: blur(30px) !important;
    -webkit-backdrop-filter: blur(30px) !important;
    border-radius: 50px;
    padding: 12px 20px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 1000;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.music-player:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.15);
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(35px);
    -webkit-backdrop-filter: blur(35px);
}

.music-controls {
    display: flex;
    gap: 6px;
}

.music-btn {
    background: none;
    border: none;
    color: #4A90E2;
    font-size: 14px;
    cursor: pointer;
    padding: 6px;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.music-btn:hover {
    background: rgba(74, 144, 226, 0.1);
    transform: scale(1.1);
}

.music-info {
    min-width: 120px;
}

.song-title {
    font-weight: 600;
    color: #333;
    font-size: 13px;
    margin-bottom: 1px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.song-artist {
    font-size: 11px;
    color: #666;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.music-progress {
    width: 80px;
}

.progress-bar {
    width: 100%;
    height: 3px;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: #4A90E2;
    width: 30%;
    transition: width 0.3s ease;
}

/* 紧凑模式样式 */
.music-player-compact {
    padding: 10px 15px;
    gap: 10px;
}

.music-player-compact .music-info {
    min-width: 100px;
}

.music-player-compact .music-progress {
    width: 70px;
}

.music-player-compact .song-title {
    font-size: 12px;
}

.music-player-compact .song-artist {
    font-size: 10px;
}

.music-player-compact .music-btn {
    font-size: 12px;
    padding: 5px;
}

/* 主容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 60px;
}

/* 头部 */
.header {
    text-align: center;
    margin-bottom: 50px;
    padding: 0 20px;
}

.main-title {
    font-size: 48px;
    font-weight: 700;
    color: #4A90E2;
    margin-bottom: 15px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 0 10px;
}

.subtitle {
    font-size: 18px;
    color: #666;
    line-height: 1.5;
    padding: 0 20px;
}

.subtitle span:first-child {
    color: #e74c3c;
}

/* 主要内容区域 */
.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

/* 卡片基础样式 */
.card {
    background: rgba(255, 255, 255, 0.4) !important;
    backdrop-filter: blur(50px) !important;
    -webkit-backdrop-filter: blur(50px) !important;
    border-radius: 20px;
    padding: 0;
    box-shadow: 
        0 12px 40px rgba(0, 0, 0, 0.12),
        inset 0 1px 0 rgba(255, 255, 255, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    margin-bottom: 30px;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    opacity: 1;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.card-container {
    padding: 60px !important;
    position: relative;
    z-index: 1;
}

.card:hover {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(60px);
    -webkit-backdrop-filter: blur(60px);
    box-shadow: 
        0 16px 48px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.6);
    transform: translateY(-3px);
}

.card:hover::before {
    opacity: 1;
}

/* 个人信息卡片 */
.profile-card {
    text-align: center;
    margin-bottom: 35px;
}

.profile-image {
    margin-bottom: 20px;
}

.profile-image img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid #4A90E2;
    box-shadow: 0 4px 20px rgba(74, 144, 226, 0.3);
}

.profile-name {
    font-size: 28px;
    font-weight: 700;
    color: #4A90E2;
    margin-bottom: 8px;
}

.profile-title {
    font-size: 16px;
    color: #4A90E2;
    margin-bottom: 20px;
    opacity: 0.8;
}

.divider {
    position: relative;
    height: 1px;
    background: linear-gradient(90deg, transparent, #4A90E2, transparent);
    margin: 20px 0;
}

.divider i {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    padding: 0 10px;
    color: #27ae60;
    font-size: 12px;
}

.profile-motto p {
    font-size: 14px;
    color: #666;
    margin-bottom: 5px;
    font-style: italic;
}

/* 联系信息卡片 */
.contact-card h3 {
    color: #4A90E2;
    margin-bottom: 30px;
    font-size: 22px;
    display: flex;
    align-items: center;
    gap: 15px;
    font-weight: 600;
}

.contact-info {
    margin-bottom: 25px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-bottom: 20px;
    padding: 20px 25px;
    border-radius: 16px;
    transition: all 0.3s ease;
    background: rgba(74, 144, 226, 0.06) !important;
    backdrop-filter: blur(20px) !important;
    -webkit-backdrop-filter: blur(20px) !important;
    border: 1px solid rgba(74, 144, 226, 0.2);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.08);
}

.contact-item:hover {
    background: rgba(74, 144, 226, 0.1);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border-color: rgba(74, 144, 226, 0.3);
    box-shadow: 0 6px 16px rgba(74, 144, 226, 0.15);
}

.contact-item i {
    color: #4A90E2;
    width: 20px;
    text-align: center;
}

.contact-item span {
    color: #333;
    font-size: 14px;
}

.social-icons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.social-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 16px;
}

.social-icon:hover {
    transform: translateY(-3px) scale(1.1);
}

.wechat { background: #07c160; }
.qq { background: #12b7f5; }

/* 关于我卡片 */
.about-card h3 {
    color: #4A90E2;
    margin-bottom: 30px;
    font-size: 22px;
    display: flex;
    align-items: center;
    gap: 15px;
    font-weight: 600;
}

.about-content p {
    color: #555;
    line-height: 1.8;
    margin-bottom: 20px;
    font-size: 16px;
    text-align: justify;
}

/* 项目卡片 */
.projects-card h3 {
    color: #4A90E2;
    margin-bottom: 30px;
    font-size: 22px;
    display: flex;
    align-items: center;
    gap: 15px;
    font-weight: 600;
}

.projects-content {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.project-tag {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(74, 144, 226, 0.12) !important;
    backdrop-filter: blur(25px) !important;
    -webkit-backdrop-filter: blur(25px) !important;
    border: 1px solid rgba(74, 144, 226, 0.25);
    border-radius: 20px;
    color: #4A90E2;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.15);
}

.project-tag:hover {
    background: rgba(74, 144, 226, 0.18);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border-color: rgba(74, 144, 226, 0.35);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(74, 144, 226, 0.25);
}

/* 留言板卡片 */
.message-board-card h3 {
    color: #4A90E2;
    margin-bottom: 30px;
    font-size: 22px;
    display: flex;
    align-items: center;
    gap: 15px;
    font-weight: 600;
}

.message-board {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.message-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.message-form input,
.message-form textarea {
    padding: 18px 25px;
    border: 2px solid rgba(74, 144, 226, 0.2);
    border-radius: 12px;
    font-size: 15px;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.8);
}

.message-form input:focus,
.message-form textarea:focus {
    outline: none;
    border-color: #4A90E2;
    background: white;
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.message-form textarea {
    resize: vertical;
    min-height: 100px;
    font-family: inherit;
}

.submit-btn {
    background: linear-gradient(135deg, #4A90E2, #357abd);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 25px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    align-self: flex-start;
}

.submit-btn:hover {
    box-shadow: 0 5px 15px rgba(74, 144, 226, 0.4);
}

.messages-container {
    max-height: 300px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.message-item {
    background: rgba(74, 144, 226, 0.04) !important;
    backdrop-filter: blur(20px) !important;
    -webkit-backdrop-filter: blur(20px) !important;
    border-left: 4px solid #4A90E2;
    padding: 25px;
    border-radius: 16px;
    transition: all 0.3s ease;
    border: 1px solid rgba(74, 144, 226, 0.15);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.08);
}

.message-item:hover {
    background: rgba(74, 144, 226, 0.08);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border-color: rgba(74, 144, 226, 0.25);
    box-shadow: 0 6px 16px rgba(74, 144, 226, 0.15);
}

.message-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.message-author {
    font-weight: 600;
    color: #4A90E2;
    font-size: 14px;
}

.message-time {
    font-size: 12px;
    color: #999;
}

.message-content {
    color: #333;
    font-size: 14px;
    line-height: 1.5;
}

/* 可编辑元素样式 */
.editable {
    cursor: pointer;
    transition: all 0.2s ease;
    padding: 2px 4px;
    border-radius: 4px;
}

.editable:hover {
    background: rgba(74, 144, 226, 0.1);
}

.editable:focus {
    outline: none;
    background: rgba(74, 144, 226, 0.2);
    box-shadow: 0 0 0 2px rgba(74, 144, 226, 0.3);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .main-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .container {
        padding: 20px 35px;
    }
    
    .main-title {
        font-size: 36px;
    }
    
    .music-player {
        bottom: 20px;
        left: 20px;
        padding: 10px 15px;
        gap: 8px;
    }
    
    .music-info {
        min-width: 100px;
    }
    
    .music-progress {
        width: 60px;
    }
    
    .projects-content {
        gap: 15px;
    }
    
    .project-tag {
        padding: 6px 12px;
        font-size: 12px;
    }
    
    .card {
        margin-bottom: 25px;
    }
    
    .card-container {
        padding: 40px !important;
    }
}

/* 滚动条样式 */
.messages-container::-webkit-scrollbar {
    width: 6px;
}

.messages-container::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.1);
    border-radius: 3px;
}

.messages-container::-webkit-scrollbar-thumb {
    background: rgba(74, 144, 226, 0.3);
    border-radius: 3px;
}

.messages-container::-webkit-scrollbar-thumb:hover {
    background: rgba(74, 144, 226, 0.5);
}