* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Helvetica Neue', Arial, sans-serif;
            color: #fff;
            min-height: 100vh;
            background-attachment: fixed;
            padding-top: 70px;
            transition: 0.5s;
            /* 为顶部导航栏腾出空间 */
        }


        .wheel-btn-container {
            position: fixed;
            bottom: 80px;
            right: 30px;
            z-index: 1000;
            display: flex;
            flex-direction: column;
            align-items: flex-end;
        }

        .main-btn {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: linear-gradient(135deg, #1a237e, #3949ab);
            color: white;
            font-size: 16px;
            display: flex;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15),
                0 8px 24px rgba(0, 0, 0, 0.1);
            transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            position: relative;
            z-index: 2;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .main-btn.active {
            transform: rotate(360deg);
            background: linear-gradient(135deg, #0d47a1, #1976d2);
        }

        .main-btn span {
            transition: opacity 0.3s ease;
            text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
        }

        .main-btn.active span {
            opacity: 0;
        }

        .main-btn::after {
            content: "收起";
            position: absolute;
            opacity: 0;
            transition: opacity 0.3s ease;
            text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
        }

        .main-btn.active::after {
            opacity: 1;
        }

        .sub-buttons {
            position: absolute;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: transparent;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            list-style: none;
            padding: 0;
            margin: 0;
            opacity: 0;
            pointer-events: none;
            transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            z-index: 1;
        }

        .main-btn.active~.sub-buttons {
            opacity: 1;
            pointer-events: auto;
        }

        .sub-btn {
            position: absolute;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: linear-gradient(135deg, #424242, #212121);
            color: white;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            box-shadow: 0 3px 8px rgba(0, 0, 0, 0.15), 0 6px 16px rgba(0, 0, 0, 0.1);
            transform: scale(0) translate(-50%, -50%);
            transform-origin: center;
            left: 50%;
            top: 50%;
            font-size: 12px;
            transition: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
            border: 1px solid rgba(255, 255, 255, 0.05);
        }

        .main-btn.active~.sub-buttons .sub-btn {
            transform: scale(1) translate(-50%, -50%);
        }

        .sub-btn-icon {
            font-size: 18px;
            margin-bottom: 3px;
            text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
        }

        .sub-btn:hover {
            background: linear-gradient(135deg, #ffb300, #ffa000);
            transform: scale(1.1) translate(-50%, -50%);
            transition: all 0.2s ease;
            box-shadow: 0 5px 15px rgba(255, 179, 0, 0.2),
                0 10px 25px rgba(255, 160, 0, 0.15);
            border-color: rgba(255, 255, 255, 0.1);
            cursor: pointer;
        }

        /* 顶部导航栏 */
        .top-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 70px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0 40px;
            z-index: 1000;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .logo-area {
            display: flex;
            align-items: center;
        }

        .logo-img {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, #3498db, #8e44ad);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            font-weight: bold;
            box-shadow: 0 0 10px rgba(52, 152, 219, 0.7);
            margin-right: 15px;
        }

        .logo-text {
            font-size: 24px;
            font-weight: 700;
            background: linear-gradient(120deg, #f6d365, #fda085, #a8e063, #56ab2f);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: 2px;
            text-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
        }

        .nav-links {
            display: flex;
        }

        .nav-link {
            position: relative;
            padding: 0 25px;
            height: 70px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .nav-lyrics {
            position: relative;
            padding: 0 25px;
            height: 70px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .nav-link:hover,
        .nav-link.active {
            color: #fff;
        }

        .nav-link:hover::after,
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 20%;
            width: 60%;
            height: 3px;
            background: linear-gradient(90deg, #3498db, #2ecc71);
            border-radius: 3px;
        }

        .link-text {
            font-size: 16px;
        }

        .link-lyrics {
            font-size: 16px;
        }

        .link-label {
            margin-top: 4px;
            font-size: 12px;
            opacity: 0.8;
        }

        .nav-link.active .link-label {
            opacity: 1;
            font-weight: 600;
        }

        /* 页面内容区域 */
        .page {
            display: none;
            padding: 30px;
            animation: fadeIn 0.5s ease;
        }

        .page.active {
            display: block;
        }

        /* 首页内容 */
        .home-content {
            max-width: 1200px;
            margin: 0 auto;
        }

        .welcome-section {
            border-radius: 12px;
            padding: 30px;
            margin-bottom: 30px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .welcome-header {
            font-size: 36px;
            margin-bottom: 20px;
            background: linear-gradient(90deg, #3498db, #2ecc71);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            text-align: center;
        }

        .developer-section {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            margin-bottom: 30px;
        }

        .developer-intro,
        .app-features,
        .app-log,
        .app-images {
            flex: 1;
            min-width: 400px;
            border-radius: 12px;
            padding: 25px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .app-images {
            display: column;
            padding-bottom: 150px;
            margin-top: 30px;
            margin-bottom: 30px;
        }

        .app-images-parent {
            margin-top: 100px;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .section-title {
            font-size: 22px;
            margin-bottom: 20px;
            padding-bottom: 10px;
            display: flex;
            align-items: center;
        }

        .section-title::before {
            content: "✦";
            margin-right: 10px;
            color: #3498db;
        }

        .developer-points {
            line-height: 1.8;
            padding: 0 20px;
        }

        .developer-points li {
            margin-bottom: 15px;
            position: relative;
            padding-left: 25px;
        }

        .developer-points li::before {
            content: "♫";
            position: absolute;
            left: 0;
            top: 0;
            color: #2ecc71;
        }

        .qr-section {
            display: flex;
            justify-content: center;
            margin-top: 40px;
        }

        .qr-container {
            border-radius: 12px;
            padding: 20px;
            text-align: center;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
            backdrop-filter: blur(5px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            max-width: 300px;
        }

        .qr-code p {
            margin: 0 0 0 0;
            font-size: 20px;
            font-weight: bold;
        }

        .qr-image {
            width: 120px;
            /* 控制二维码显示大小 */
            height: 120px;
            margin: 0 auto;
            display: block;
            margin-bottom: 20px;
            border: 1px solid #3498db;
            /* 可选边框 */
        }

        .app-name {
            font-size: 18px;
            margin: 10px 0 0 0;
            color: #333;
            margin-bottom: 20px;
        }

        .qr-title {
            font-size: 20px;
            margin-bottom: 15px;
        }

        .qr-code {
            width: 180px;
            height: 180px;
            background: #fff;
            border-radius: 10px;
            margin: 0 auto 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 80px;
        }

        .download-link {
            display: block;
            margin-top: 15px;
            padding: 10px 0;
            font-size: 14px;
            background: linear-gradient(90deg, #3498db, #2ecc71);
            border-radius: 30px;
            text-decoration: none;
            font-weight: bold;
            transition: transform 0.3s;
        }

        .download-link:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
            text-decoration: none;
        }

        .admin-link {
            font-size: 16px;
            color: white;
            margin: 1px 0;
            text-decoration: none;
            /* 添加边距 */
        }

        /* 音乐列表页 */
        .music-list-page {
            max-width: 1200px;
            margin: 0 auto;
        }

        .page-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
            background: rgba(20, 25, 50, 0.5);
            padding: 20px;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .page-title {
            font-size: 26px;
            display: flex;
            align-items: center;
        }

        .page-title::before {
            content: "♬";
            margin-right: 15px;
            font-size: 32px;
            color: #3498db;
        }

        .search-box {
            display: flex;
            width: 200px;
            height: 40px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 30px;
            padding: 5px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .search-box input {
            background: transparent;
            border: none;
            outline: none;
            color: white;
            /* 关键属性 - 文字颜色为白色 */
            font-size: 14px;
            width: 100%;
            padding: 0 5px;
        }

        .search-box input::placeholder {
            color: rgba(255, 255, 255, 0.6);
            /* 半透明白色占位符 */
        }

        /* 聚焦时的效果 */
        .search-box.focused {
            background: rgba(255, 255, 255, 0.15);
            border-color: rgba(255, 255, 255, 0.4);
        }

        .random-btn {
            border: none;
            height: 40px;
            border-radius: 30px;
            padding: 10px 25px;
            font-size: 16px;
            font-weight: bold;
            cursor: pointer;
            display: flex;
            align-items: center;
            transition: transform 0.3s;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }

        .random-btn:hover {
            transform: translateY(-3px);
        }


        .random-next1 {
            font-size: 16px;
        }

        .music-table {
            width: 100%;
            border-radius: 12px;
            table-layout: fixed;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            backdrop-filter: blur(10px);
            border-collapse: collapse;
        }

        .music-table th {
            background: var(--primary-color);
            color: white;
            padding: 15px;
            text-align: left;
        }

        .music-table td {
            padding: 15px;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .music-table td:not(:last-child) {
            overflow: hidden;
        }

        .music-table tr:hover {
            background-color: var(--hover-bg);
        }

        .table-header {
            display: grid;
            grid-template-columns: 50px 2fr 1.5fr 1fr 70px 140px;
            background: rgba(0, 10, 30, 0.7);
            padding: 18px 20px;
            font-weight: 600;
            color: #3498db;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .table-row {
            display: grid;
            grid-template-columns: 50px 2fr 1.5fr 1fr 70px 140px;
            padding: 15px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            align-items: center;
        }

        .table-row:hover {
            background: rgba(0, 50, 80, 0.3);
        }

        .row-id {
            text-align: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }

        .music-info {
            display: flex;
            align-items: center;
        }

        .music-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, #3498db, #8e44ad);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-right: 15px;
        }

        .music-title {
            font-weight: 500;
        }

        .music-artist,
        .music-album {
            color: rgba(255, 255, 255, 0.8);
        }

        .music-duration {
            color: rgba(255, 255, 255, 0.7);
        }

        .action-buttons {
            display: flex;
            gap: 10px;
        }


        .action-btn {
            padding: 4px 8px;
            margin: 0 2px;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            transition: all 0.3s;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: auto;
            font-size: 0.9em;
        }

        .play-btn {
            background-color: #3498db;
            color: white;
            width: 50px;
        }

        .play-btn:hover {
            background-color: #2980b9;
        }

        .play-btn.playing {
            background-color: #e74c3c;
        }

        .play-btn.playing .icon::before {
            content: "❚❚";
        }

        .download-container {
            position: relative;
            display: inline-block;
        }

        .download-btn {
            background-color: #2ecc71;
            color: white;
            width: 50px;

        }

        .download-btn:hover {
            background-color: #27ae60;
        }

        .download-container:hover .download-options {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(-5px);
        }

        .download-options {
            position: absolute;
            bottom: 100%;
            left: 50%;
            background-color: #2ecc71;
            transform: translateX(-50%);
            display: flex;
            flex-direction: column;
            gap: 8px;
            padding: 12px;
            border-radius: 10px;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            z-index: 3000;
            margin-bottom: 10px;
            min-width: 120px;
        }

        .option-btn {
            padding: 8px 12px;
            background-color: #2ecc71;
            color: white;
            border: 1px solid rgba(37, 99, 235, 0.3);
            border-radius: 6px;
            cursor: pointer;
            transition: all 0.3s;
            font-size: 14px;
        }

        .option-btn:hover {
            background-color: #27ae60;
        }

        .dashboard {
            width: 85%;
        }

        .pagination {
            display: flex;
            justify-content: center;
            margin-top: 30px;
            gap: 15px;
        }

        .page-btn {
            padding: 8px 20px;
            background: rgba(20, 25, 50, 0.5);
            color: white;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 30px;
            cursor: pointer;
            transition: all 0.3s;
        }

        .page-btn:hover {
            background: linear-gradient(90deg, #3498db, #2980b9);
        }

        .page-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        .page-info {
            padding: 8px 25px;
            background: rgba(20, 25, 50, 0.5);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 30px;
            transition: all 0.3s;
        }

        .social-buttons-container {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 12px;
            margin-top: 20px;
            width: 150px;
            /* 增加宽度容纳预览区域 */
        }

        .duration {
            font-family: 'Courier New', monospace;
            color: #ffffff;
        }

        .serial-number {
            width: 6%;
            text-align: center;

        }

        th.serial-number {
            text-align: center;
        }

        .title-column {
            width: 30%;
            max-width: 500px;

        }

        .artist-column {
            width: 30%;
            max-width: 500px;
        }

        .album-column {
            width: 16%;
            max-width: 500px;
        }

        .duration-column {
            width: 6%;
        }

        .action-column {
            width: 12%;
            text-align: center;
        }


        th.action-column {
            cursor: default;
            position: relative;
            text-align: center;
        }

        th.action-column:hover::before {
            content: "点击下载可以同时下载歌曲和歌词";
            position: absolute;
            bottom: 100%;
            /* 显示在表头上方 */
            left: 50%;
            transform: translateX(-50%);
            /* 水平居中 */
            padding: 6px 12px;
            border-radius: 4px;
            font-size: 14px;
            white-space: nowrap;

            /* 箭头样式 */
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
        }

        /* 左侧悬浮预览区域 */
        .hover-preview {
            position: absolute;
            left: -180px;
            /* 预览图在按钮左侧 */
            transform: translateY(-30%);
            /* 精确垂直居中 */
            width: 180px;
            height: 180px;
            background: white;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            display: none;
            justify-content: center;
            align-items: center;
            z-index: 100;
            transition: opacity 0.3s;
        }

        .hover-preview img {
            max-width: 90%;
            max-height: 90%;
            border-radius: 4px;
        }

        /* 社交按钮组 */
        .social-buttons {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        /* 单个社交按钮 */
        .social-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            transition: transform 0.2s;
            position: relative;
        }

        /* 平台品牌背景色 */
        .social-btn.wechat {
            background-color: #07C160;
        }

        .social-btn.qq {
            background-color: #12B7F5;
        }

        .social-btn.douyin {
            background-color: #ffffff;
        }

        .social-btn.kushou {
            background-color: #FF4906;
        }

        .social-btn.bilibili {
            background-color: #EC5D85;
        }

        /* 按钮图标样式 */
        .social-btn img {
            width: 28px;
            height: 28px;
            object-fit: contain;
            transition: transform 0.2s;
        }

        /* 鼠标悬停效果 */
        .social-btn:hover {
            transform: scale(1.1);
        }

        .social-btn:hover img {
            transform: scale(1.15);
        }

        .parent {
            margin-top: 20px;
        }

        .footer {
            text-align: center;
            padding-top: 40px;
            font-size: 16px;
            padding-bottom: 3px;
            color: rgba(52, 152, 219, 0.8);
        }

        .run-time {
            text-align: center;
            padding-bottom: 3px;
            font-size: 14px;
        }

        .runtime_span {
            color: rgba(52, 152, 219, 0.8);
        }

        /* 备案信息 */
        .icp-container {
            text-align: center;
            padding: 3px 0;
            font-size: 14px;
            color: rgba(52, 152, 219, 0.8);
            margin-bottom: 80px;
        }

        .icp-container a {
            color: rgba(52, 152, 219, 0.8);
            text-decoration: none;
        }

        .icp-container a:hover {
            color: #3498db;
            text-decoration: underline;
        }

        /* 动画 */
        @keyframes fadeIn {
            from {
                opacity: 0;
            }

            to {
                opacity: 1;
            }
        }

        /* 响应式设计 */
        @media (max-width: 1000px) {
            .top-nav {
                padding: 0 15px;
            }

            .nav-link {
                padding: 0 15px;
                font-size: 14px;
            }

            .page {
                padding: 15px;
            }

            .developer-section {
                flex-direction: column;
            }

            .developer-intro,
            .app-features {
                min-width: 100%;
            }

            .table-header,
            .table-row {
                grid-template-columns: 30px 2fr 1fr 1fr auto auto;
                padding: 10px 15px;
                font-size: 14px;
            }

            .action-buttons {
                flex-direction: column;
                gap: 8px;
            }

            .serial-number {
                width: 9%;
                text-align: center;
            }

            .title-column {
                width: 23%;
                max-width: 500px;
            }

            .artist-column {
                width: 23%;
                max-width: 500px;
            }

            .album-column {
                width: 15%;
                max-width: 500px;
            }

            .duration-column {
                width: 10%;
                min-width: 80px;
            }

            .action-column {
                width: 20%;
                text-align: center;
            }

            .search-box {
                width: 200px;
            }

            .lyrics-container {
                width: 50%;
            }
        }

        #player-status {
            position: fixed;
            top: 80px;
            left: 50%;
            transform: translateX(-50%);
            background: rgba(20, 28, 70, 0.9);
            padding: 10px 20px;
            border-radius: 20px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            z-index: 1000;
            text-align: center;
            max-width: 80%;
            animation: fadeIn 0.3s ease;
            display: none;
        }

        #player-status.show {
            display: block;
        }

        #player-status.error {
            background: rgba(231, 76, 60, 0.9);
            color: white;
        }

        .lyrics-container {
            width: 60%;
            height: 60px;
            top: 5px;
            /* 使用固定定位 */
            position: fixed;
            left: 50%;
            /* 水平居中 */
            transform: translateX(-50%);
            /* 配合left实现居中 */
            padding: 15px;
            overflow: hidden;
            justify-content: center;
            scroll-behavior: smooth;
            line-height: 2;
            text-align: center;
            pointer-events: none;
            z-index: 1001;
            /* 确保这个值大于导航栏的z-index */
            transition:
                transform 1s cubic-bezier(0.175, 0.885, 0.32, 1.275),
                width 1s cubic-bezier(0.175, 0.885, 0.32, 1.275),
                top 1s cubic-bezier(0.175, 0.885, 0.32, 1.275),
                border-radius 1s ease,
                padding 1s ease;
        }

        .lyrics-container.fullscreen {
            position: fixed;
            width: 80%;
            height: 90%;
            top: 80px;
            margin: 0 auto;
            border-radius: 12px;
            margin-bottom: 30px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            z-index: 2000;
            /* 置于最顶层 */
            font-size: 24px;
            /* 放大字体 */
            line-height: 2;
            /* 增加内边距 */
            display: flex;
        }

        .lyrics-content {
            white-space: pre-wrap;
            font-family: 'Microsoft YaHei', sans-serif;
            line-height: 1.2;
            font-size: 0.9em;
        }

        .lyric-line {
            padding: 7px 0;
            transition: all 0.3s;
            opacity: 0.6;
        }

        .lyric-line.active {
            color: #3498db;
            font-weight: bold;
            transform: scale(1.2);
            opacity: 1;
        }

        .loading {
            text-align: center;
            color: #666;
        }

        .easy-text {
            text-align: center;
            color: rgba(255, 255, 255, 0.8);
            font-size: 18px;
            line-height: 1.6;
        }

        .theme-button {
            position: relative;
            margin-left: 15px;
            /* 调整间距 */
            transform: translateY(-50%);
            width: 80px;
        }

        .timeline {
            position: relative;
            padding: 40px 0;
        }

        /* 中央竖线 */
        .timeline::before {
            content: "";
            position: absolute;
            top: 0;
            bottom: 0;
            width: 2px;
            left: 50%;
            margin-left: -1px;
            z-index: 0;
        }

        /* 时间线项 */
        .entry {
            position: relative;
            margin-bottom: 100px;
            display: flex;
            align-items: flex-start;
            z-index: 1;
            transition: all 0.4s ease;
            perspective: 1000px;
        }

        /* 奇数项（左） */
        .entry:nth-child(odd) {
            justify-content: flex-start;
        }

        /* 偶数项（右） */
        .entry:nth-child(even) {
            justify-content: flex-end;
        }

        /* 内容容器 */
        .content-wrapper {
            width: 45%;
            position: relative;
            padding: 30px;
        }


        /* 年份样式 */
        .year {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 20px;
            letter-spacing: 2px;
            transition: all 0.3s ease;
            text-shadow: 0 0 15px rgba(255, 255, 255, 0.3);
        }

        .entry:nth-child(odd) .year {
            text-align: right;
            padding-right: 25px;
        }

        .entry:nth-child(even) .year {
            padding-left: 25px;
        }

        /* 内容样式 */
        .text {
            backdrop-filter: blur(3px);
            padding: 25px;
            border-radius: 10px;
            box-shadow: 0 5px 25px rgba(0, 0, 0, 0.4);
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: all 0.4s ease;
        }

        .text:hover {
            transform: scale(1.05);
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.4);
        }

        .text p {
            line-height: 1.8;
            font-weight: 300;
            margin-bottom: 15px;
        }

        .text p:last-child {
            margin-bottom: 0;
        }

        /* 圆圈位置 */
        .circle-container {
            position: absolute;
            top: 15px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 2;
        }

        /* 圆圈样式 */
        .circle {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            position: relative;
            transition: all 0.3s ease;
        }

        .entry:hover .circle {
            transform: scale(1.3);
        }

        /* 连接线 */
        .circle::before {
            content: "";
            position: absolute;
            width: 80px;
            height: 2px;
            top: 50%;
            transform: translateY(-50%);
        }

        .entry:nth-child(odd) .circle::before {
            left: -85px;
        }

        .entry:nth-child(even) .circle::before {
            right: -85px;
        }

        .container {
            position: relative;
            width: 100%;
            max-width: 800px;
            height: 500px;
            padding: 20px;
            box-sizing: border-box;
        }

        /* 卡片容器：用 flex 布局让卡片水平排列，超出部分隐藏 */
        .card-wrapper {
            display: flex;
            align-items: center;
            width: 100%;
            height: 100%;
            overflow: hidden;
            border-radius: 10px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }

        /* 单个卡片样式：设置宽度、过渡动画，让切换更丝滑 */
        .card {
            flex-shrink: 0;
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: var(--card-width);
            height: var(--card-height);
            margin: 0;
            border-radius: 8px;
            transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
            cursor: pointer;
        }

        /* 卡片层级和样式配置 */
        .card.active {
            left: 50%;
            transform: translate(-50%, -50%) scale(1);
            z-index: 5;
            opacity: 1;
        }

        .card.prev-1 {
            left: 30%;
            transform: translate(-50%, -50%) scale(0.9);
            z-index: 4;
            opacity: 0.8;
        }

        .card.next-1 {
            left: 70%;
            transform: translate(-50%, -50%) scale(0.9);
            z-index: 4;
            opacity: 0.8;
        }

        .card.prev-2 {
            left: 20%;
            transform: translate(-50%, -50%) scale(0.8);
            z-index: 3;
            opacity: 0.6;
        }

        .card.next-2 {
            left: 80%;
            transform: translate(-50%, -50%) scale(0.8);
            z-index: 3;
            opacity: 0.6;
        }

        .card.hidden {
            opacity: 0;
            pointer-events: none;
        }

        /* 卡片图片样式：覆盖整个卡片 */
        .card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
            border-radius: 8px;
        }

        /* 鼠标悬停效果：仅应用于当前激活的卡片 */
        .card.active:hover img {
            transform: scale(1.1);
        }

        /* 左右箭头样式：固定位置、圆形、半透明背景 */
        .arrow-one {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 40px;
            height: 40px;
            background-color: rgba(255, 255, 255, 0.8);
            border-radius: 50%;
            display: flex;
            padding-right: 4px;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            font-size: 24px;
            color: #333;
            box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
            z-index: 10;
            transition: background-color 0.2s ease;
        }

        .arrow-two {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 40px;
            height: 40px;
            background-color: rgba(255, 255, 255, 0.8);
            border-radius: 50%;
            display: flex;
            padding-left: 4px;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            font-size: 24px;
            color: #333;
            box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
            z-index: 10;
            transition: background-color 0.2s ease;
        }

        /* 箭头 hover 效果：加深背景 */
        .arrow:hover {
            background-color: rgba(255, 255, 255, 1);
        }

        /* 左箭头位置 */
        .arrow-left {
            left: 20px;
        }

        /* 右箭头位置 */
        .arrow-right {
            right: 20px;
        }

        /* 底部文字标签样式 */
        .text-label {
            position: absolute;
            font-family: 'Microsoft YaHei', sans-serif;
            bottom: -100px;
            left: 50%;
            transform: translateX(-50%);
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 16px;
            z-index: 10;
        }

        :root {
            --card-width: 270px;
            /* 卡片宽度 */
            --card-height: 603px;
            /* 卡片高度 */
        }


        .player-controls {
            position: fixed;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            width: 95%;
            max-width: 1000px;
            backdrop-filter: blur(10px);
            padding: 20px 30px;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            border: 1px solid rgba(255, 255, 255, 0.1);
            z-index: 1000;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all 0.3s ease;
        }

        .player-container {
            display: flex;
            width: 100%;
            justify-content: space-between;
            align-items: center;
        }

        .playback-controls {
            display: flex;
            gap: 15px;
            align-items: center;
        }



        .control-btn {
            background: rgba(255, 255, 255, 0.1);
            border: none;
            color: #fff;
            font-size: 24px;
            padding-bottom: 6px;
            cursor: pointer;
            border-radius: 50%;
            text-align: center;
            width: 50px;
            height: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
        }

        .control-btn:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: scale(1.05);
        }

        .play-control-btn {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #1db954, #1ed760);
            border: none;
            color: #fff;
            font-size: 24px;
            padding-bottom: 3px;
            cursor: pointer;
            border-radius: 50%;
            text-align: center;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
        }

        .play-control-btn:hover {
            background: linear-gradient(135deg, #1ed760, #2efd72);
        }

        .info-progress-container {
            display: flex;
            flex-direction: column;
            width: 70%;
            max-width: 700px;
        }

        .song-info {
            margin-bottom: 15px;
            text-align: center;
        }

        #currentSongTitle {
            font-weight: bold;
            font-size: 20px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            margin-bottom: 5px;
            letter-spacing: 0.5px;
        }

        #currentSongArtist {
            font-size: 16px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            font-weight: 300;
        }

        .progress-section {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .time-display {
            font-size: 14px;
            min-width: 45px;
            text-align: center;
        }

        .progress-container {
            position: relative;
            flex-grow: 1;
        }

        .progress-bar {
            width: 100%;
            height: 8px;
            background: transparent;
            position: relative;
            z-index: 2;
            cursor: pointer;
            border-radius: 4px;
        }

        .collapse-btn {
            position: absolute;
            top: 0px;
            right: 10px;
            background: transparent;
            border: none;
            width: 35px;
            height: 35px;
            border-radius: 50%;
            font-size: 30px;
            cursor: pointer;
            display: flex;
            align-items: center;
            text-align: center;
            justify-content: center;
            transition: all 0.3s ease;
            z-index: 1001;
        }

        .collapse-btn:hover {
            transform: scale(1.3);
        }

        .player-controls.collapsed {
            transform: translateX(-50%) translateY(100px);
            opacity: 0;
            pointer-events: none;
        }

        .expand-btn {
            position: fixed;
            bottom: -60px;
            /* 初始在屏幕底部外 */
            left: 50%;
            transform: translateX(-50%);
            width: 150px;
            height: 40px;
            background: linear-gradient(135deg, #1db954, #1ed760);
            color: white;
            border: none;
            font-size: 3rem;
            padding-bottom: 25px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50% 50% 0 0;
            box-shadow: 0 -5px 20px rgba(29, 185, 84, 0.5);
            transform-origin: bottom center;
            transition: all 0.5s cubic-bezier(0.68, -0.55, 0.27, 1.55);
            pointer-events: auto;
        }

        .expand-btn.visible {
            bottom: 0px;
            /* 显示在屏幕底部 */
        }

        

        /* 默认亮色主题变量 */
        :root,
        :root.light-theme {
            --bg-gradient: linear-gradient(135deg, #ffffff, #B4B9CF);
            --nav-bg: linear-gradient(to bottom, #BBBFD3, #DEE0E7);
            --placeholder--color: rgba(40, 40, 40, 0.6);
            --card-bg: rgba(230, 235, 255, 0.5);
            --container-bg: rgba(230, 235, 255, 0.7);
            --text-color: rgba(0, 0, 0, 0.8);
            --title-color: black;
            --link-color: black;
            --search-border: rgba(0, 0, 0, 0.2);
            --search-border2: rgba(0, 0, 0, 0.4);
            --circle-bg: #000;
            --box-shadow: 0 0 0 4px rgba(0, 0, 0, 0.3);
            --box-shadow2: 0 0 0 6px rgba(0, 0, 0, 0.4);
            --download-bg: rgb(250, 250, 255, 0.9);
            --line-color: 1px solid #111;
            --border-top: 1px solid rgba(0, 0, 0, 0.2);
        }

        /* 暗色主题变量 */
        :root.dark-theme {
            --bg-gradient: linear-gradient(135deg, #1a2a6c, #2c3e50);
            --nav-bg: linear-gradient(to bottom, #0d1237, #2a3a76);
            --placeholder--color: rgba(255, 255, 255, 0.6);
            --card-bg: rgba(20, 25, 50, 0.5);
            --container-bg: rgba(20, 25, 50, 0.7);
            --text-color: rgba(255, 255, 255, 0.8);
            --title-color: white;
            --link-color: white;
            --search-border: rgba(255, 255, 255, 0.2);
            --search-border2: rgba(255, 255, 255, 0.4);
            --circle-bg: #fff;
            --box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.3);
            --box-shadow2: 0 0 0 6px rgba(255, 255, 255, 0.4);
            --download-bg: rgb(25, 25, 60, 0.9);
            --line-color: 1px solid #eee;
            --border-top: 1px solid rgba(255, 255, 255, 0.2);
        }

        /* 应用变量 */
        body {
            background: var(--bg-gradient);
        }

        .music-table td {
            border-top: var(--line-color);
        }

        .footer {
            border-top: var(--border-top);
        }
        .section-title {
            border-bottom: var(--line-color);
        }

        .text:hover {
            border-color: var(--title-color);
        }

        .top-nav {
            background: var(--nav-bg);
        }

        .search-box {
            border-color: var(--search-border);
        }

        .search-box.focused {
            border-color: var(--search-border2);
        }

        .circle {
            box-shadow: var(--box-shadow);
        }

        .entry:hover .circle {
            box-shadow: var(--box-shadow2);
        }

        .circle,
        .circle::before,
        .timeline::before {
            background: var(--circle-bg);
        }

        .welcome-section,
        .developer-intro,
        .music-table,
        .app-features,
        .app-log,
        .app-images,
        .page-header,
        .page-btn,
        .page-info,
        #player-status,
        .lyrics-container.fullscreen,
        .player-controls {
            background: var(--card-bg);
        }

        .download-options,
        th.action-column:hover::before {
            background: var(--download-bg);
        }

        .qr-container,
        .random-btn,
        .text,
        .text-label {
            background: var(--container-bg);
        }

        .easy-text {
            color: var(--text-color);
        }

        .search-box input::placeholder {
            color: var(--placehoider-color);
        }

        .section-title,
        .developer-points,
        .qr-title,
        .music-table th,
        .search-box,
        .search-box input,
        .page-title,
        .serial-number,
        .title,
        .artist,
        .album,
        .duration,
        .page-info,
        .page-btn,
        .lyric-line,
        .link-label,
        .link-text,
        .link-lyrics,
        #player-status,
        #player-status.error,
        .random-btn,
        .text p,
        .year,
        .text-label,
        th.action-column:hover::before,
        #currentSongTitle,
        #currentSongArtist,
        .time-display,
        .collapse-btn,
        .control-btn {
            color: var(--title-color);
        }

        .admin-link,
        .download-link {
            color: var(--link-color);
        }