/* CSS 变量 - 科技感时间线主题 */
        :root {
            --update-log-primary: #74e4de;
            --update-log-primary-glow: 0 0 15px rgba(116, 228, 222, 0.5);
            --update-log-secondary: #74e4de;
            --update-log-dark-bg: #0a0a0a;
            --update-log-card-bg: rgba(15, 15, 15, 0.95);
            --update-log-card-bg-hover: rgba(25, 25, 25, 0.95);
            --update-log-border: rgba(255, 255, 255, 0.1);
            --update-log-border-hover: rgba(116, 228, 222, 0.3);
            --update-log-text-primary: #ffffff;
            --update-log-text-secondary: #9ca3af;
            --update-log-text-muted: #6b7280;
            --update-log-accent: #ff6b9d;
            --update-log-radius: 16px;
            --update-log-radius-sm: 8px;
            --update-log-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* 基础样式 */
        .update-log-body {
            margin: 0;
            padding: 0;
            background: var(--update-log-dark-bg);
            background-image:
                    radial-gradient(circle at 20% 50%, rgba(116, 228, 222, 0.05) 0%, transparent 20%),
                    radial-gradient(circle at 80% 20%, rgba(77, 184, 255, 0.05) 0%, transparent 20%);
            color: var(--update-log-text-primary);
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            min-height: 100vh;
            line-height: 1.6;
        }

        .update-log-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 2rem 1.5rem;
            position: relative;
        }

        /* 装饰元素 */
        .update-log-decoration {
            position: fixed;
            pointer-events: none;
            z-index: 0;
        }

        .update-log-dot {
            position: absolute;
            width: 1px;
            height: 1px;
            background: var(--update-log-primary);
            border-radius: 50%;
            box-shadow: 0 0 20px 5px var(--update-log-primary);
        }

        /* 标题区域 */
        .update-log-header {
            text-align: center;
            /*margin-bottom: 4rem;*/
            position: relative;
            z-index: 1;
        }

        .update-log-header::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(116, 228, 222, 0.1) 0%, transparent 70%);
            filter: blur(40px);
            z-index: -1;
        }

        .update-log-title {
            font-size: 3.5rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--update-log-primary), var(--update-log-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 1rem;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            position: relative;
            display: inline-block;
        }

        .update-log-title::after {
            /*content: '';*/
            /*position: absolute;*/
            /*bottom: -10px;*/
            /*left: 50%;*/
            /*transform: translateX(-50%);*/
            /*width: 100px;*/
            /*height: 3px;*/
            /*background: linear-gradient(90deg, transparent, var(--update-log-primary), transparent);*/
            /*border-radius: 2px;*/
        }
        .update-log-subtitle {
            color: var(--update-log-text-secondary);
            font-size: 1.25rem;
            max-width: 600px;
            margin: 1rem auto 0;
            line-height: 1.6;
            padding: 0 1rem;
        }

        /* 时间线容器 */
        .update-log-timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding: 0;
            z-index: 1;
        }

        /* 时间线中心线 */
        .update-log-timeline::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 2px;
            height: 100%;
            background: linear-gradient(
                    to bottom,
                    transparent,
                    var(--update-log-primary),
                    var(--update-log-secondary),
                    transparent
            );
            opacity: 0.3;
        }

        /* 时间线节点 */
        .update-log-timeline-node {
            position: absolute;
            /*left: 50%;*/
            transform: translateX(-50%);
            width: 16px;
            height: 16px;
            background: var(--update-log-dark-bg);
            border: 3px solid var(--update-log-primary);
            border-radius: 50%;
            z-index: 2;
            box-shadow: 0 0 20px var(--update-log-primary);
            animation: update-log-pulse 2s infinite;
        }

        @keyframes update-log-pulse {
            0%, 100% {
                box-shadow: 0 0 20px var(--update-log-primary);
                transform: translateX(-50%) scale(1);
            }
            50% {
                box-shadow: 0 0 30px var(--update-log-primary);
                transform: translateX(-50%) scale(1.1);
            }
        }

        /* 日志卡片 */
        .update-log-card {
            background: linear-gradient(
                    145deg,
                    rgba(15, 15, 15, 0.95),
                    rgba(20, 20, 20, 0.95)
            );
            border: 1px solid var(--update-log-border);
            border-radius: var(--update-log-radius);
            padding: 2.5rem;
            margin: 4rem 0;
            position: relative;
            transition: var(--update-log-transition);
            backdrop-filter: blur(10px);
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
        }

        .update-log-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--update-log-primary), var(--update-log-secondary));
            border-radius: var(--update-log-radius) var(--update-log-radius) 0 0;
            opacity: 0;
            transition: var(--update-log-transition);
        }

        .update-log-card:hover {
            transform: translateY(-8px);
            border-color: var(--update-log-border-hover);
            box-shadow:
                    0 20px 60px rgba(0, 0, 0, 0.5),
                    0 0 30px rgba(116, 228, 222, 0.1);
        }

        .update-log-card:hover::before {
            opacity: 1;
        }

        /* 卡片内容 */
        .update-log-card-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            margin-bottom: 2rem;
            position: relative;
        }

        .update-log-card-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--update-log-text-primary);
            margin: 0;
            flex: 1;
            line-height: 1.3;
            background: linear-gradient(135deg, var(--update-log-primary), var(--update-log-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .update-log-card-time {
            background: rgba(116, 228, 222, 0.1);
            border: 1px solid rgba(116, 228, 222, 0.3);
            border-radius: var(--update-log-radius-sm);
            padding: 0.75rem 1.25rem;
            color: var(--update-log-primary);
            font-size: 0.875rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            white-space: nowrap;
            margin-left: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .update-log-card-time i {
            font-size: 0.75rem;
        }

        .update-log-card-description {
            color: var(--update-log-text-secondary);
            font-size: 1.125rem;
            line-height: 1.7;
            margin-bottom: 2rem;
            padding: 1rem 0;
            border-bottom: 1px solid var(--update-log-border);
        }

        /* 更新内容列表 */
        .update-log-content-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .update-log-content-item {
            position: relative;
            padding: 1rem 0 1rem 2rem;
            color: var(--update-log-text-secondary);
            font-size: 1rem;
            line-height: 1.6;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            transition: var(--update-log-transition);
        }

        .update-log-content-item:last-child {
            border-bottom: none;
        }

        .update-log-content-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 1.4rem;
            width: 8px;
            height: 8px;
            background: var(--update-log-secondary);
            border-radius: 50%;
            box-shadow: 0 0 10px var(--update-log-secondary);
        }

        .update-log-content-item:hover {
            color: var(--update-log-text-primary);
            transform: translateX(5px);
            background: linear-gradient(90deg, rgba(116, 228, 222, 0.05), transparent);
            border-radius: var(--update-log-radius-sm);
            padding-left: 2.5rem;
        }

        .update-log-content-item p {
            margin: 0;
            word-wrap: break-word; /* 或者使用overflow-wrap: break-word; */
        }

        /* 版本标签 */
        .update-log-version-badge {
            display: inline-block;
            background: linear-gradient(135deg, var(--update-log-primary), var(--update-log-secondary));
            color: var(--update-log-dark-bg);
            padding: 0.5rem 1.25rem;
            border-radius: var(--update-log-radius-sm);
            font-weight: 700;
            font-size: 0.875rem;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            margin-right: 1rem;
            box-shadow: 0 5px 15px rgba(116, 228, 222, 0.2);
        }

        /* 空状态 */
        .update-log-empty {
            text-align: center;
            padding: 6rem 2rem;
            grid-column: 1 / -1;
        }

        .update-log-empty-icon {
            font-size: 5rem;
            background: linear-gradient(135deg, var(--update-log-primary), var(--update-log-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 2rem;
            opacity: 0.5;
        }

        .update-log-empty-text {
            color: var(--update-log-text-secondary);
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
        }

        .update-log-empty-subtext {
            color: var(--update-log-text-muted);
            font-size: 1rem;
            max-width: 400px;
            margin: 0 auto;
        }

        /* 装饰性时间线箭头 */
        .update-log-card::after {
            /*content: '';*/
            /*position: absolute;*/
            /*top: 50%;*/
            /*transform: translateY(-50%);*/
            /*width: 20px;*/
            /*height: 20px;*/
            /*background: var(--update-log-card-bg);*/
            /*border: 1px solid var(--update-log-border);*/
            /*border-left: none;*/
            /*border-bottom: none;*/
            /*z-index: 1;*/
        }

        /* 交替布局 - 左侧卡片 */
        .update-log-card:nth-child(odd) {
            /*margin-right: calc(50% + 2rem);*/
            /*text-align: right;*/
        }

        .update-log-card:nth-child(odd)::after {
            right: -10px;
            transform: translateY(-50%) rotate(45deg);
        }

        .update-log-card:nth-child(odd) .update-log-card-header {
            /*flex-direction: row-reverse;*/
        }

        .update-log-card:nth-child(odd) .update-log-card-time {
            margin-left: 0;
            margin-right: 1.5rem;
        }

        .update-log-card:nth-child(odd) .update-log-content-item {
            /*padding: 1rem 2rem 1rem 0;*/
            /*text-align: right;*/
        }

        .update-log-card:nth-child(odd) .update-log-content-item::before {
            /*left: auto;*/
            /*right: 0;*/
        }

        .update-log-card:nth-child(odd) .update-log-content-item:hover {
            /*transform: translateX(-5px);*/
            /*background: linear-gradient(270deg, rgba(116, 228, 222, 0.05), transparent);*/
            /*padding-right: 2.5rem;*/
            /*padding-left: 0;*/
        }

        /* 交替布局 - 右侧卡片 */
        .update-log-card:nth-child(even) {
            /*margin-left: calc(50% + 2rem);*/
        }

        .update-log-card:nth-child(even)::after {
            left: -10px;
            transform: translateY(-50%) rotate(-135deg);
        }

        /* 响应式设计 */
        @media (max-width: 1024px) {
            .update-log-title {
                font-size: 3rem;
            }

            .update-log-card {
                padding: 2rem;
            }
        }

        @media (max-width: 768px) {
            .update-log-container {
                padding: 1.5rem 1rem;
            }

            .update-log-title {
                font-size: 2.5rem;
            }

            .update-log-subtitle {
                font-size: 1.125rem;
                padding: 0;
            }

            /* 移动端改为垂直时间线 */
            .update-log-timeline::before {
                left: 2rem;
                display: none;
            }

            .update-log-timeline-node {
                left: 2rem;
            }

            .update-log-card {
                margin: 3rem 0 3rem 4rem;
                text-align: left !important;
            }

            .update-log-card:nth-child(odd),
            .update-log-card:nth-child(even) {
                margin-left: 4rem;
                margin-right: 0;
            }

            .update-log-card::after {
                left: -10px !important;
                right: auto !important;
                transform: translateY(-50%) rotate(-135deg) !important;
            }

            .update-log-card-header {
                flex-direction: column !important;
                align-items: flex-start !important;
            }

            .update-log-card-time {
                margin: 1rem 0 0 0 !important;
            }

            .update-log-content-item {
                padding: 1rem 0 1rem 2rem !important;
                text-align: left !important;
            }

            .update-log-content-item::before {
                left: 0 !important;
                right: auto !important;
            }

            .update-log-content-item:hover {
                transform: translateX(5px) !important;
                background: linear-gradient(90deg, rgba(116, 228, 222, 0.05), transparent) !important;
                padding-left: 2.5rem !important;
                padding-right: 0 !important;
            }
        }

        @media (max-width: 480px) {
            .update-log-title {
                font-size: 2rem;
            }

            .update-log-subtitle {
                font-size: 1rem;
            }

            .update-log-card {
                padding: 1.5rem;
                margin-left: 0rem !important;
            }

            .update-log-card-title {
                font-size: 1.5rem;
            }

            .update-log-card-description {
                font-size: 1rem;
            }

            .update-log-card-time {
                font-size: 0.75rem;
                padding: 0.5rem 1rem;
            }

            .update-log-content-item {
                font-size: 0.9375rem;
            }
        }

        /* 触摸设备优化 */
        @media (hover: none) and (pointer: coarse) {
            .update-log-card:hover {
                transform: none;
            }

            .update-log-content-item:hover {
                transform: none !important;
            }

            .update-log-content-item:active {
                background: linear-gradient(90deg, rgba(116, 228, 222, 0.05), transparent);
            }
        }

        /* 滚动动画 */
        .update-log-card {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease, transform 0.6s ease, var(--update-log-transition);
        }

        .update-log-card.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* 底部装饰 */
        .update-log-footer {
            text-align: center;
            margin-top: 6rem;
            padding-top: 3rem;
            border-top: 1px solid var(--update-log-border);
            color: var(--update-log-text-muted);
            font-size: 0.875rem;
        }

        .update-log-footer a {
            color: var(--update-log-primary);
            text-decoration: none;
            transition: var(--update-log-transition);
        }

        .update-log-footer a:hover {
            color: var(--update-log-secondary);
            text-decoration: underline;
        }