/* 更新记录页面样式 - 左右分栏布局 */

/* 布局容器 */
.changelog-layout {
    display: flex;
    gap: 0;
    min-height: calc(100vh - 12.5rem);
    animation: fadeInUp 0.6s ease forwards;
}

/* 左侧边栏 */
.sidebar {
    width: 17.5rem;
    flex-shrink: 0;
    background: var(--bg-card);
    backdrop-filter: blur(0.625rem);
    -webkit-backdrop-filter: blur(0.625rem);
    border-right: 0.0625rem solid var(--glass-border);
    position: sticky;
    top: 5rem;
    height: calc(100vh - 7.5rem);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 0.0625rem solid var(--glass-border);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
}

.sidebar-header h3 {
    font-size: 1.2rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

/* 搜索区域 */
.search-area {
    padding: 1rem;
    border-bottom: 0.0625rem solid var(--glass-border);
}

.search-mode-toggle {
    display: none;
}

.search-mode-btn {
    flex: 1;
    padding: 0.5rem 0.8rem;
    background: rgba(99, 102, 241, 0.1);
    border: 0.0625rem solid var(--glass-border);
    border-radius: 0.375rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
}

.search-mode-btn:hover {
    background: rgba(99, 102, 241, 0.2);
}

.search-mode-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--text-primary);
    border-color: transparent;
}

.search-input {
    width: 100%;
    padding: 0.7rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 0.0625rem solid var(--glass-border);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: var(--transition);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.1875rem rgba(99, 102, 241, 0.2);
}

.search-input::placeholder {
    color: var(--text-secondary);
}

/* 版本菜单 */
.version-nav {
    flex: 1;
    overflow-y: auto;
    padding: 1rem 0;
}

.version-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.menu-item {
    margin: 0 0.5rem;
}

.menu-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 0.5rem;
    transition: var(--transition);
    font-size: 0.95rem;
}

.menu-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.15rem;
}

.menu-link:hover {
    background: rgba(99, 102, 241, 0.1);
    color: var(--text-primary);
    transform: translateX(0.25rem);
}

.menu-item.active .menu-link {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--text-primary);
    box-shadow: var(--shadow-glow);
}

.menu-version {
    font-weight: 600;
}

.menu-date-range {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.2;
}

.menu-count {
    font-size: 0.8rem;
    padding: 0.2rem 0.6rem;
    background: rgba(99, 102, 241, 0.2);
    border-radius: 0.75rem;
    color: var(--text-secondary);
}

.group-actions {
    display: flex;
    align-items: center;
    gap: 0.7rem;
}

.expand-all-btn {
    padding: 0.35rem 0.8rem;
    border: 0.0625rem solid var(--glass-border);
    border-radius: 1rem;
    background: rgba(99, 102, 241, 0.1);
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.expand-all-btn:hover:not(:disabled) {
    background: rgba(99, 102, 241, 0.2);
    color: var(--text-primary);
    border-color: var(--primary-color);
}

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

.menu-item.active .menu-count {
    background: rgba(255, 255, 255, 0.2);
    color: var(--text-primary);
}

.menu-item.active .menu-date-range {
    color: rgba(255, 255, 255, 0.85);
}

/* 右侧内容区 */
.content-area {
    flex: 1;
    padding: 0;
    overflow: visible;
}

.content-header {
    padding: 2rem 2rem 1.5rem;
    border-bottom: 0.0625rem solid var(--glass-border);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(139, 92, 246, 0.05));
    backdrop-filter: blur(0.625rem);
    -webkit-backdrop-filter: blur(0.625rem);
}

.content-title {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0 0 0.5rem 0;
}

.content-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin: 0;
}

.version-content-wrapper {
    padding: 2rem;
}

.content-area .version-content-wrapper {
    padding-top: 1rem;
}

/* 版本组 */
.version-group {
    display: none;
}

.version-group.active {
    display: block;
}

.search-results-panel {
    margin-bottom: 1.5rem;
}

.search-results-panel .search-header {
    position: static;
    top: auto;
    z-index: 1;
    margin-bottom: 1rem;
}

.search-result-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.search-result-block {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}

.search-result-source {
    display: inline-flex;
    align-self: flex-start;
    padding: 0.2rem 0.55rem;
    font-size: 0.78rem;
    color: var(--text-secondary);
    background: rgba(99, 102, 241, 0.14);
    border: 0.0625rem solid var(--glass-border);
    border-radius: 62.4375rem;
}

.search-result-version-item {
    background: var(--bg-card);
    backdrop-filter: blur(0.625rem);
    -webkit-backdrop-filter: blur(0.625rem);
    border: 0.0625rem solid var(--glass-border);
    border-radius: 0.625rem;
    overflow: hidden;
}

.search-highlight {
    background: rgba(236, 72, 153, 0.28);
    color: var(--text-primary);
    border-radius: 0.25rem;
    padding: 0 0.15rem;
}

/* 版本组头部 */
.group-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 2rem;
    padding: 1.2rem 1.5rem;
    background: linear-gradient(135deg, rgba(26, 26, 62, 0.96), rgba(36, 36, 86, 0.96));
    backdrop-filter: blur(0.5rem);
    -webkit-backdrop-filter: blur(0.5rem);
    border: 0.0625rem solid var(--glass-border);
    border-radius: 0.75rem;
    position: sticky;
    top: 5.375rem;
    z-index: 20;
    box-shadow: 0 0.5rem 1.25rem rgba(0, 0, 0, 0.28);
}

.group-meta {
    display: flex;
    flex: 1;
    align-items: flex-start;
    gap: 1rem;
    flex-wrap: wrap;
}

.group-title {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.group-count {
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding: 0.4rem 1rem;
    background: rgba(99, 102, 241, 0.2);
    border-radius: 1.25rem;
}

.major-updates-block {
    flex: 1;
    min-width: 21.25rem;
    max-width: 40rem;
    background: rgba(255, 255, 255, 0.03);
    border: 0.0625rem solid var(--glass-border);
    border-radius: 0.75rem;
    padding: 0.75rem 0.95rem;
    box-shadow: inset 0 0 0 0.0625rem rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(0.375rem);
    -webkit-backdrop-filter: blur(0.375rem);
    max-height: 12.5rem;
    overflow: auto;
}

.major-title {
    margin: 0 0 0.45rem;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
}

.major-list {
    list-style: disc;
    margin: 0;
    padding-left: 1.2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(16.25rem, 1fr));
    gap: 0.4rem 1rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.major-list li {
    line-height: 1.4;
}

/* 版本列表 */
.version-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* 版本项 */
.version-item {
    background: var(--bg-card);
    backdrop-filter: blur(0.625rem);
    -webkit-backdrop-filter: blur(0.625rem);
    border: 0.0625rem solid var(--glass-border);
    border-radius: 0.625rem;
    overflow: hidden;
    transition: var(--transition);
}

.version-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0.25rem 0.9375rem rgba(99, 102, 241, 0.2);
}

/* 版本切换按钮 */
.version-toggle {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(139, 92, 246, 0.05));
    border-bottom: 0.0625rem solid var(--glass-border);
    text-decoration: none;
    cursor: pointer;
    user-select: none;
    transition: var(--transition);
}

.version-toggle:hover {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
}

.toggle-icon {
    font-size: 0.8rem;
    color: var(--text-secondary);
    transition: transform 0.3s ease, color 0.3s ease;
    flex-shrink: 0;
}

.version-item.expanded .toggle-icon {
    color: var(--text-primary);
    transform: rotate(90deg);
}

.toggle-version {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
    text-align: left;
}

.toggle-date {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-family: 'Courier New', monospace;
    flex-shrink: 0;
}

/* 版本详情 */
.version-details {
    display: none;
}

.version-item.expanded .version-details {
    display: block;
}

/* 分类 */
.section {
    margin-bottom: 1.5rem;
}

/* 覆盖全站 .section 的入场动画，避免展开详情时出现明显延时 */
.version-details .section {
    opacity: 1;
    transform: none;
    animation: none;
}

.section:last-child {
    margin-bottom: 0;
}

.section-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 0.8rem 0;
    padding-bottom: 0.5rem;
    border-bottom: 0.125rem solid rgba(99, 102, 241, 0.3);
}

/* 优化列表项渲染 */
.section-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.section-list li {
    padding: 0.4rem 0;
    padding-left: 1.5rem;
    position: relative;
    line-height: 1.5;
    color: var(--text-secondary);
    will-change: transform; /* 性能优化 */
}

.section-list li::before {
    content: '▪';
    position: absolute;
    left: 0;
    color: var(--text-secondary);
    font-size: 0.8rem;
}

/* 添加简单的淡入效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(0.625rem);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.version-group.active .version-list {
    animation: fadeIn 0.2s ease forwards;
}

/* 响应式设计 */
@media (max-width: 64rem) {
    .sidebar {
        width: 15rem;
    }
    
    .content-header {
        padding: 1.5rem;
    }
    
    .version-content-wrapper {
        padding: 1.5rem;
    }
}

@media (max-width: 48rem) {
    /* 改为上下布局 */
    .changelog-layout {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        height: auto;
        position: static;
        border-right: none;
        border-bottom: 0.0625rem solid var(--glass-border);
    }
    
    .sidebar-header {
        padding: 1rem;
    }
    
    .sidebar-header h3 {
        font-size: 1rem;
    }
    
    .search-area {
        padding: 0.8rem;
    }
    
    .version-nav {
        padding: 0.5rem;
    }
    
    .menu-link {
        padding: 0.6rem 0.8rem;
        font-size: 0.9rem;
    }
    
    .content-header {
        padding: 1rem 1.5rem;
    }
    
    .content-title {
        font-size: 1.5rem;
    }
    
    .content-subtitle {
        font-size: 0.95rem;
    }
    
    .version-content-wrapper {
        padding: 1rem;
    }
    
    .group-header {
        padding: 1rem;
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
    
    .group-title {
        font-size: 1.2rem;
    }
    
    .version-toggle {
        padding: 0.8rem 1rem;
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
    
    .toggle-version {
        font-size: 1rem;
    }
    
    .toggle-date {
        font-size: 0.8rem;
    }
    
    .version-details {
        padding: 1rem;
    }
    
    .section-title {
        font-size: 0.95rem;
    }
    
    .section-list li {
        padding-left: 1.2rem;
        font-size: 0.9rem;
    }
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(1.25rem);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 隐藏效果 */
.hidden {
    display: none !important;
}