/* ==================== 首页样式 ==================== */

/* 主内容区 - Hero 全屏所以不需要 padding-top 给导航栏留空 */
.main-content {
    position: relative;
    z-index: 1;
}

/* 导航栏（保留旧样式用于兼容） */
.navbar {
    position: sticky;
    top: 0;
    background: var(--bg-primary);
    box-shadow: var(--shadow-sm);
    z-index: var(--z-sticky);
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
    padding: 0 var(--spacing-xl);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-xl);
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
}

.navbar-brand i {
    color: var(--primary-color);
}

.navbar-menu {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--primary-color);
    background: var(--bg-tertiary);
}

.nav-link.active {
    color: var(--primary-color);
    font-weight: 500;
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* 用户菜单 */
.user-menu {
    position: relative;
}

.user-menu-trigger {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: transparent;
    border: none;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.user-menu-trigger:hover {
    background: var(--bg-tertiary);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
}

.user-name {
    font-weight: 500;
    color: var(--text-primary);
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: var(--spacing-xs);
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
}

.user-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text-primary);
    text-decoration: none;
    transition: background var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--bg-tertiary);
}

.dropdown-item i {
    width: 16px;
    color: var(--text-secondary);
}

.dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: var(--spacing-xs) 0;
}

/* 区域样式 */
.section {
    padding: 60px 0;
}

.section-alt {
    background: rgba(248, 249, 250, 0.88);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: var(--font-2xl);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.section-title i {
    color: var(--primary-color);
}

.section-desc {
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
}

.section-more {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--primary-color);
    text-decoration: none;
}

.section-more:hover {
    text-decoration: underline;
}

/* 功能模块网格 */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

/* 大尺寸工具卡片 - 占据2列 */
.tool-card.tool-card-large {
    grid-column: span 2;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: var(--spacing-xl);
    padding: var(--spacing-xl) var(--spacing-2xl);
}

.tool-card.tool-card-large .tool-icon {
    width: 72px;
    height: 72px;
    margin-bottom: 0;
    flex-shrink: 0;
}

.tool-card.tool-card-large .tool-icon i {
    font-size: 32px;
}

.tool-card.tool-card-large .tool-title {
    font-size: 1.25rem;
}

.tool-card.tool-card-large .tool-desc {
    margin-bottom: 0;
    -webkit-line-clamp: 1;
}

.tool-card.tool-card-large .tool-footer {
    margin-left: auto;
    margin-top: 0;
}

/* 响应式：小屏幕时大卡片变回单列 */
@media (max-width: 768px) {
    .tool-card.tool-card-large {
        grid-column: span 1;
        flex-direction: column;
        align-items: flex-start;
    }
    
    .tool-card.tool-card-large .tool-icon {
        width: 52px;
        height: 52px;
        margin-bottom: var(--spacing-md);
    }
    
    .tool-card.tool-card-large .tool-icon i {
        font-size: 22px;
    }
    
    .tool-card.tool-card-large .tool-footer {
        margin-left: 0;
        margin-top: var(--spacing-md);
    }
}

.tool-card {
    position: relative;
    background: var(--bg-primary);
    border-radius: 4px;
    padding: var(--spacing-xl);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-hover));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.tool-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    border-color: var(--primary-color);
}

.tool-card:hover::before {
    transform: scaleX(1);
}

.tool-card-placeholder {
    opacity: 0.6;
    cursor: default;
}

.tool-card-placeholder:hover {
    transform: none;
    border-color: var(--border-color);
}

.tool-icon {
    width: 52px;
    height: 52px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.tool-icon i {
    font-size: 22px;
    color: white;
}

.tool-icon-img {
    width: 28px;
    height: 28px;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.tool-title {
    font-size: var(--font-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.tool-desc {
    color: var(--text-secondary);
    font-size: var(--font-sm);
    line-height: 1.5;
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.tool-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tool-tag {
    font-size: 11px;
    font-weight: 500;
    padding: 3px 8px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: 2px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tool-badges {
    display: inline-flex;
    gap: 4px;
    margin-left: 4px;
}

.tool-badge {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    font-size: 10px;
    font-weight: 600;
    padding: 2px 7px;
    border-radius: 3px;
    background: color-mix(in srgb, var(--badge-color, #666) 15%, transparent);
    color: var(--badge-color, #666);
    letter-spacing: 0.3px;
    line-height: 1.4;
    white-space: nowrap;
}

.tool-badge i {
    font-size: 9px;
}

.tool-footer > i {
    color: var(--primary-color);
    opacity: 0;
    transform: translateX(-8px);
    transition: all 0.2s ease;
}

.tool-card:hover .tool-footer > i {
    opacity: 1;
    transform: translateX(0);
}

/* 锁定状态的功能卡片 - 高斯模糊效果 */
.tool-card-locked {
    position: relative;
    cursor: not-allowed;
}

.tool-card-locked .tool-icon,
.tool-card-locked .tool-title,
.tool-card-locked .tool-desc,
.tool-card-locked .tool-footer {
    filter: blur(4px);
    opacity: 0.5;
    user-select: none;
    transition: all 0.3s ease;
}

.tool-card-locked:hover {
    transform: none;
    border-color: var(--border-color);
}

.tool-card-locked:hover::before {
    transform: scaleX(0);
}

.tool-lock-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(20, 20, 30, 0.05);
    backdrop-filter: blur(3px);
    border-radius: 4px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    z-index: 10;
    transition: all 0.3s ease;
}

.tool-lock-overlay i {
    font-size: 28px;
    color: #1a1a2e;
    opacity: 0.7;
    transition: all 0.3s ease;
}

.tool-lock-overlay span {
    font-size: var(--font-xs);
    color: #1a1a2e;
    opacity: 0.6;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.tool-card-locked:hover .tool-icon,
.tool-card-locked:hover .tool-title,
.tool-card-locked:hover .tool-desc,
.tool-card-locked:hover .tool-footer {
    filter: blur(6px);
    opacity: 0.3;
}

.tool-card-locked:hover .tool-lock-overlay {
    background: rgba(20, 20, 30, 0.1);
}

.tool-card-locked:hover .tool-lock-overlay i {
    transform: scale(1.1);
    opacity: 0.9;
}

.tool-card-locked:hover .tool-lock-overlay span {
    opacity: 0.8;
}

/* 模块状态标签 */
.tool-status-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 4px;
    backdrop-filter: blur(8px);
}

.tool-status-badge i {
    font-size: 0.65rem;
}

.tool-status-badge.maintenance {
    background: rgba(241, 196, 15, 0.9);
    color: #7d6608;
    box-shadow: 0 2px 8px rgba(241, 196, 15, 0.3);
}

/* 维护中卡片样式 */
.tool-card-maintenance {
    position: relative;
}

.tool-card-maintenance::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.05);
    pointer-events: none;
    border-radius: inherit;
}

.tool-card-maintenance .tool-icon {
    filter: grayscale(30%);
}

.tool-card-maintenance:hover {
    cursor: not-allowed;
}

/* 文章网格 */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.article-card {
    background: var(--bg-primary);
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-color);
    position: relative;
}

.article-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #1a1a2e, #16213e);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.article-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(26, 26, 46, 0.15);
    border-color: rgba(26, 26, 46, 0.2);
}

.article-card:hover::after {
    transform: scaleX(1);
}

.article-cover {
    height: 180px;
    background: var(--bg-tertiary);
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
}

.article-cover::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        180deg,
        transparent 0%,
        transparent 50%,
        rgba(26, 26, 46, 0.6) 100%
    );
    opacity: 0;
    transition: opacity 0.3s ease;
}

.article-card:hover .article-cover::before {
    opacity: 1;
}

.article-cover-placeholder {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

.article-cover-placeholder i {
    font-size: 40px;
    color: rgba(255, 255, 255, 0.3);
}

/* 文章封面文字样式（无封面图时使用） */
.article-cover-text {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.article-cover-text::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(255,255,255,0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255,255,255,0.08) 0%, transparent 50%);
    pointer-events: none;
}

.article-cover-text::after {
    content: '\f15c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    font-size: 120px;
    color: rgba(255, 255, 255, 0.05);
    bottom: -20px;
    right: -20px;
    transform: rotate(-15deg);
    pointer-events: none;
}

.article-cover-text-content {
    position: relative;
    z-index: 1;
    color: rgba(255, 255, 255, 0.95);
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    max-height: 6.4em;
}

/* 不同颜色主题的文字封面 */
.article-cover-text.theme-blue {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.article-cover-text.theme-green {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
}

.article-cover-text.theme-orange {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.article-cover-text.theme-cyan {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.article-cover-text.theme-purple {
    background: linear-gradient(135deg, #a18cd1 0%, #fbc2eb 100%);
}

.article-cover-text.theme-dark {
    background: linear-gradient(135deg, #2c3e50 0%, #4ca1af 100%);
}

.article-body {
    padding: var(--spacing-lg);
}

.article-title {
    font-size: var(--font-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.2s ease;
}

.article-card:hover .article-title {
    color: #1a1a2e;
}

.article-title a {
    color: inherit;
    text-decoration: none;
}

.article-title a:hover {
    color: #1a1a2e;
}

.article-summary {
    color: var(--text-secondary);
    font-size: var(--font-sm);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 11px;
    color: var(--text-muted);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border-color);
}

.article-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.article-author img {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
}

.article-stats {
    display: flex;
    gap: var(--spacing-md);
}

.article-stat {
    display: flex;
    align-items: center;
    gap: 3px;
    color: var(--text-muted);
}

.article-stat i {
    font-size: 10px;
    opacity: 0.7;
}

/* 加载占位 */
.loading-placeholder {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--spacing-3xl);
    color: var(--text-muted);
}

.empty-placeholder {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--spacing-3xl);
    color: var(--text-muted);
}

.empty-placeholder i {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

/* 页脚 */
.footer {
    background: var(--text-primary);
    color: white;
    text-align: center;
    padding: var(--spacing-xl);
}

.footer p {
    opacity: 0.8;
    font-size: var(--font-sm);
}

/* ==================== 暗色主题适配 ==================== */

/* 区域背景 */
[data-theme="dark"] .section-alt {
    background: rgba(15, 23, 42, 0.5);
}

/* 工具卡片 */
[data-theme="dark"] .tool-card {
    background: var(--bg-secondary);
    border-color: var(--border-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .tool-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] .tool-lock-overlay {
    background: rgba(15, 23, 42, 0.3);
}

[data-theme="dark"] .tool-lock-overlay i,
[data-theme="dark"] .tool-lock-overlay span {
    color: #94a3b8;
}

[data-theme="dark"] .tool-card-locked:hover .tool-lock-overlay {
    background: rgba(15, 23, 42, 0.5);
}

/* 文章卡片 */
[data-theme="dark"] .article-card {
    background: var(--bg-secondary);
    border-color: var(--border-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .article-card:hover {
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
    border-color: rgba(148, 163, 184, 0.3);
}

[data-theme="dark"] .article-card:hover .article-title {
    color: #e2e8f0;
}

[data-theme="dark"] .article-title a:hover {
    color: #e2e8f0;
}

[data-theme="dark"] .article-cover {
    background: var(--bg-tertiary);
}

[data-theme="dark"] .article-cover-placeholder {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
}

[data-theme="dark"] .article-meta {
    border-top-color: var(--border-color);
}

[data-theme="dark"] .article-author img {
    border-color: var(--border-color);
}

/* 页脚 */
[data-theme="dark"] .footer {
    background: #0c1322;
}

/* 响应式 */
@media (max-width: 768px) {
    .navbar-menu {
        display: none;
    }
    
    .section {
        padding: 40px 0;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .tools-grid,
    .articles-grid {
        grid-template-columns: 1fr;
    }
}