/**
 * XTheme Pro 短代码样式
 */

/* ========================================
   基础短代码组件
   ======================================== */

/* 提示框 */
.xt-alert {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    border-radius: var(--xt-radius-md);
    margin: 16px 0;
    border: 1px solid;
}

.xt-alert-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
}

.xt-alert-icon svg {
    width: 100%;
    height: 100%;
}

.xt-alert-content {
    flex: 1;
    font-size: 0.9375rem;
    line-height: 1.5;
}

.xt-alert-content p {
    margin: 0;
}

.xt-alert-success {
    background: rgba(0, 186, 124, 0.1);
    border-color: rgba(0, 186, 124, 0.3);
    color: #00ba7c;
}

.xt-alert-error {
    background: rgba(244, 33, 46, 0.1);
    border-color: rgba(244, 33, 46, 0.3);
    color: #f4212e;
}

.xt-alert-warning {
    background: rgba(255, 184, 0, 0.1);
    border-color: rgba(255, 184, 0, 0.3);
    color: #ffb800;
}

.xt-alert-info {
    background: rgba(29, 155, 240, 0.1);
    border-color: rgba(29, 155, 240, 0.3);
    color: var(--xt-primary);
}

/* 折叠面板 */
.xt-accordion {
    border: 1px solid var(--xt-border);
    border-radius: var(--xt-radius-md);
    margin: 16px 0;
    overflow: hidden;
}

.xt-accordion-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    background: var(--xt-bg-secondary);
    cursor: pointer;
    transition: background var(--xt-transition-fast);
    user-select: none;
}

.xt-accordion-header:hover {
    background: var(--xt-bg-hover);
}

.xt-accordion-title {
    font-weight: 600;
    color: var(--xt-text-primary);
}

.xt-accordion-icon {
    width: 20px;
    height: 20px;
    color: var(--xt-text-secondary);
    transition: transform var(--xt-transition);
}

.xt-accordion[open] .xt-accordion-icon {
    transform: rotate(180deg);
}

.xt-accordion-content {
    padding: 16px;
    border-top: 1px solid var(--xt-border);
}

/* 进度条 */
.xt-progress {
    margin: 16px 0;
}

.xt-progress-bar {
    height: 8px;
    background: var(--xt-bg-secondary);
    border-radius: var(--xt-radius-full);
    overflow: hidden;
}

.xt-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--xt-primary), #00D4AA);
    border-radius: var(--xt-radius-full);
    transition: width 0.5s ease;
}

.xt-progress-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    font-size: 0.875rem;
}

.xt-progress-label span:first-child {
    font-weight: 600;
    color: var(--xt-text-primary);
}

.xt-progress-label span:last-child {
    color: var(--xt-text-secondary);
}

.xt-progress-striped .xt-progress-fill {
    background-image: linear-gradient(
        45deg,
        rgba(255, 255, 255, 0.15) 25%,
        transparent 25%,
        transparent 50%,
        rgba(255, 255, 255, 0.15) 50%,
        rgba(255, 255, 255, 0.15) 75%,
        transparent 75%,
        transparent
    );
    background-size: 1rem 1rem;
    animation: xt-progress-stripes 1s linear infinite;
}

@keyframes xt-progress-stripes {
    from { background-position: 1rem 0; }
    to { background-position: 0 0; }
}

/* 下载按钮 */
.xt-download-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    background: var(--xt-bg-secondary);
    border: 1px solid var(--xt-border);
    border-radius: var(--xt-radius-md);
    color: var(--xt-text-primary);
    text-decoration: none;
    transition: all var(--xt-transition-fast);
    margin: 8px 0;
    width: 100%;
}

.xt-download-btn:hover {
    background: var(--xt-bg-hover);
    border-color: var(--xt-primary);
    color: var(--xt-primary);
}

.xt-download-btn svg {
    width: 24px;
    height: 24px;
    color: var(--xt-primary);
    flex-shrink: 0;
}

.xt-download-info {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.xt-download-name {
    font-weight: 600;
}

.xt-download-size {
    font-size: 0.8125rem;
    color: var(--xt-text-secondary);
}

.xt-download-icon {
    margin-left: auto;
}

/* 登录提示 */
.xt-login-tip {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--xt-primary-light);
    border-radius: var(--xt-radius-md);
    margin: 16px 0;
    color: var(--xt-primary);
}

.xt-login-tip svg {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

/* 代码块 */
.xt-code-block {
    position: relative;
    margin: 16px 0;
    border-radius: var(--xt-radius-md);
    overflow: hidden;
    background: var(--xt-bg-secondary);
}

.xt-code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    background: var(--xt-bg-tertiary);
    border-bottom: 1px solid var(--xt-border);
}

.xt-code-lang {
    font-size: 0.8125rem;
    color: var(--xt-text-secondary);
    font-weight: 500;
}

.xt-code-copy-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: transparent;
    border: none;
    border-radius: var(--xt-radius-sm);
    color: var(--xt-text-secondary);
    cursor: pointer;
    transition: all var(--xt-transition-fast);
}

.xt-code-copy-btn:hover {
    background: var(--xt-bg-hover);
    color: var(--xt-text-primary);
}

.xt-code-copy-btn.copied {
    color: var(--xt-success);
}

.xt-code-copy-btn svg {
    width: 16px;
    height: 16px;
}

.xt-code-pre {
    margin: 0;
    padding: 16px;
    overflow-x: auto;
    font-family: var(--xt-font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
}

.xt-code-pre code {
    font-family: inherit;
    background: none;
    padding: 0;
}

/* 时间线 */
.xt-timeline {
    position: relative;
    padding-left: 32px;
    margin: 24px 0;
}

.xt-timeline::before {
    content: '';
    position: absolute;
    left: 7px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--xt-border);
}

.xt-timeline-item {
    position: relative;
    margin-bottom: 24px;
}

.xt-timeline-item:last-child {
    margin-bottom: 0;
}

.xt-timeline-marker {
    position: absolute;
    left: -28px;
    top: 4px;
    width: 12px;
    height: 12px;
    background: var(--xt-primary);
    border-radius: 50%;
    border: 2px solid var(--xt-bg-primary);
}

.xt-timeline-content {
    padding: 16px;
    background: var(--xt-bg-secondary);
    border-radius: var(--xt-radius-md);
    border: 1px solid var(--xt-border);
}

.xt-timeline-date {
    display: block;
    font-size: 0.8125rem;
    color: var(--xt-text-secondary);
    margin-bottom: 8px;
}

.xt-timeline-title {
    font-size: 1rem;
    font-weight: 700;
    margin: 0 0 8px;
    color: var(--xt-text-primary);
}

.xt-timeline-content p {
    margin: 0;
    font-size: 0.9375rem;
}

/* 标签 */
.xt-tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--xt-primary-light);
    color: var(--xt-primary);
    border-radius: var(--xt-radius-full);
    font-size: 0.8125rem;
    font-weight: 500;
    transition: all var(--xt-transition-fast);
    text-decoration: none;
}

.xt-tag:hover {
    background: var(--xt-primary);
    color: #fff;
}

.xt-tag-lg {
    padding: 6px 16px;
    font-size: 0.875rem;
}

.xt-tag-outline {
    background: transparent;
    border: 1px solid var(--xt-primary);
}

.xt-tag-outline:hover {
    background: var(--xt-primary-light);
    color: var(--xt-primary);
}

/* 列布局 */
.xt-columns {
    display: flex;
    flex-wrap: wrap;
    margin: 16px -8px;
}

.xt-column {
    padding: 0 8px;
    flex: 1;
}

.xt-col-1 { flex-basis: 8.33%; max-width: 8.33%; }
.xt-col-2 { flex-basis: 16.66%; max-width: 16.66%; }
.xt-col-3 { flex-basis: 25%; max-width: 25%; }
.xt-col-4 { flex-basis: 33.33%; max-width: 33.33%; }
.xt-col-5 { flex-basis: 41.66%; max-width: 41.66%; }
.xt-col-6 { flex-basis: 50%; max-width: 50%; }
.xt-col-7 { flex-basis: 58.33%; max-width: 58.33%; }
.xt-col-8 { flex-basis: 66.66%; max-width: 66.66%; }
.xt-col-9 { flex-basis: 75%; max-width: 75%; }
.xt-col-10 { flex-basis: 83.33%; max-width: 83.33%; }
.xt-col-11 { flex-basis: 91.66%; max-width: 91.66%; }
.xt-col-12 { flex-basis: 100%; max-width: 100%; }

@media (max-width: 768px) {
    .xt-columns {
        flex-direction: column;
    }

    .xt-column {
        flex-basis: 100% !important;
        max-width: 100% !important;
        margin-bottom: 16px;
    }
}

/* 提示框 */
.xt-tips {
    background: rgba(29, 155, 240, 0.05);
    border-left: 4px solid var(--xt-primary);
    border-radius: 0 var(--xt-radius-md) var(--xt-radius-md) 0;
    margin: 16px 0;
}

.xt-tips-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    font-weight: 600;
    color: var(--xt-primary);
}

.xt-tips-header svg {
    width: 20px;
    height: 20px;
}

.xt-tips-content {
    padding: 0 16px 16px;
    font-size: 0.9375rem;
}

.xt-tips-content p {
    margin: 0;
}

/* 用户卡片 */
.xt-user-card {
    background: var(--xt-bg-secondary);
    border: 1px solid var(--xt-border);
    border-radius: var(--xt-radius-lg);
    padding: 20px;
    margin: 16px 0;
}

.xt-user-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.xt-user-card-header img {
    border-radius: 50%;
}

.xt-user-info {
    display: flex;
    flex-direction: column;
}

.xt-user-name {
    font-weight: 700;
    color: var(--xt-text-primary);
    margin: 0;
}

.xt-user-username {
    font-size: 0.875rem;
    color: var(--xt-text-secondary);
}

.xt-user-bio {
    font-size: 0.9375rem;
    color: var(--xt-text-secondary);
    margin: 0 0 12px;
    line-height: 1.5;
}

.xt-user-stats {
    display: flex;
    gap: 16px;
    font-size: 0.875rem;
    color: var(--xt-text-secondary);
}

.xt-user-stats strong {
    color: var(--xt-text-primary);
}

/* ========================================
   高级短代码组件
   ======================================== */

/* 统计卡片 */
.xt-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin: 16px 0;
}

.xt-stat-card {
    background: var(--xt-bg-secondary);
    border: 1px solid var(--xt-border);
    border-radius: var(--xt-radius-lg);
    padding: 20px;
    text-align: center;
    transition: all var(--xt-transition-fast);
}

.xt-stat-card:hover {
    border-color: var(--xt-primary);
    transform: translateY(-2px);
}

.xt-stat-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--xt-primary-light);
    border-radius: 50%;
    color: var(--xt-primary);
}

.xt-stat-icon svg {
    width: 24px;
    height: 24px;
}

.xt-stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--xt-text-primary);
    line-height: 1.2;
}

.xt-stat-label {
    font-size: 0.875rem;
    color: var(--xt-text-secondary);
    margin-top: 4px;
}

/* 价格卡片 */
.xt-pricing {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
    margin: 16px 0;
}

.xt-price-card {
    background: var(--xt-bg-secondary);
    border: 1px solid var(--xt-border);
    border-radius: var(--xt-radius-lg);
    padding: 24px;
    text-align: center;
    transition: all var(--xt-transition-fast);
    position: relative;
}

.xt-price-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--xt-shadow-lg);
}

.xt-price-card.xt-price-featured {
    border-color: var(--xt-primary);
    transform: scale(1.05);
}

.xt-price-card.xt-price-featured:hover {
    transform: scale(1.05) translateY(-4px);
}

.xt-price-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 12px;
    background: var(--xt-primary);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--xt-radius-full);
}

.xt-price-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--xt-text-primary);
    margin-bottom: 8px;
}

.xt-price-amount {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--xt-text-primary);
}

.xt-price-amount span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--xt-text-secondary);
}

.xt-price-period {
    font-size: 0.875rem;
    color: var(--xt-text-secondary);
    margin-bottom: 16px;
}

.xt-price-features {
    list-style: none;
    padding: 0;
    margin: 0 0 20px;
    text-align: left;
}

.xt-price-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 0;
    font-size: 0.875rem;
    color: var(--xt-text-secondary);
    border-bottom: 1px solid var(--xt-border);
}

.xt-price-features li:last-child {
    border-bottom: none;
}

.xt-price-features li svg {
    width: 16px;
    height: 16px;
    color: var(--xt-success);
    flex-shrink: 0;
}

.xt-price-features li.disabled {
    opacity: 0.5;
}

.xt-price-features li.disabled svg {
    color: var(--xt-text-muted);
}

/* 步骤指示器 */
.xt-steps {
    margin: 24px 0;
}

.xt-step {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.xt-step:last-child {
    margin-bottom: 0;
}

.xt-step-number {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--xt-primary);
    color: #fff;
    font-weight: 700;
    border-radius: 50%;
    flex-shrink: 0;
}

.xt-step-content {
    flex: 1;
    padding-bottom: 24px;
    border-left: 2px solid var(--xt-border);
    padding-left: 20px;
    margin-left: -2px;
}

.xt-step:last-child .xt-step-content {
    border-left-color: transparent;
    padding-bottom: 0;
}

.xt-step-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--xt-text-primary);
    margin-bottom: 4px;
}

.xt-step-desc {
    font-size: 0.875rem;
    color: var(--xt-text-secondary);
    line-height: 1.5;
}

/* 表格样式 */
.xt-table-wrapper {
    overflow-x: auto;
    margin: 16px 0;
    border-radius: var(--xt-radius-md);
    border: 1px solid var(--xt-border);
}

.xt-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.xt-table th,
.xt-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--xt-border);
}

.xt-table th {
    background: var(--xt-bg-secondary);
    font-weight: 600;
    color: var(--xt-text-primary);
}

.xt-table td {
    color: var(--xt-text-secondary);
}

.xt-table tr:last-child td {
    border-bottom: none;
}

.xt-table tr:hover td {
    background: var(--xt-bg-hover);
}

.xt-table-striped tr:nth-child(even) td {
    background: var(--xt-bg-secondary);
}

/* 引用块 */
.xt-blockquote {
    position: relative;
    padding: 20px 24px;
    padding-left: 48px;
    background: var(--xt-bg-secondary);
    border-left: 4px solid var(--xt-primary);
    border-radius: 0 var(--xt-radius-md) var(--xt-radius-md) 0;
    margin: 16px 0;
}

.xt-blockquote::before {
    content: '"';
    position: absolute;
    top: 12px;
    left: 16px;
    font-size: 3rem;
    font-family: Georgia, serif;
    color: var(--xt-primary);
    opacity: 0.3;
    line-height: 1;
}

.xt-blockquote p {
    margin: 0;
    font-size: 1rem;
    font-style: italic;
    color: var(--xt-text-primary);
    line-height: 1.6;
}

.xt-blockquote cite {
    display: block;
    margin-top: 12px;
    font-size: 0.875rem;
    font-style: normal;
    color: var(--xt-text-secondary);
}

/* 高亮文本 */
.xt-highlight {
    background: linear-gradient(120deg, var(--xt-primary-light) 0%, var(--xt-primary-light) 100%);
    background-repeat: no-repeat;
    background-size: 100% 40%;
    background-position: 0 90%;
    padding: 0 4px;
}

/* 徽章 */
.xt-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 2px 8px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--xt-radius-full);
    background: var(--xt-primary);
    color: #fff;
}

.xt-badge-outline {
    background: transparent;
    border: 1px solid currentColor;
}

.xt-badge-success {
    background: var(--xt-success);
}

.xt-badge-warning {
    background: var(--xt-warning);
    color: #000;
}

.xt-badge-error {
    background: var(--xt-error);
}

.xt-badge-lg {
    padding: 4px 12px;
    font-size: 0.8125rem;
}

/* 分隔线 */
.xt-divider {
    height: 1px;
    background: var(--xt-border);
    margin: 24px 0;
}

.xt-divider-dashed {
    background: transparent;
    border-top: 2px dashed var(--xt-border);
}

.xt-divider-gradient {
    background: linear-gradient(90deg, transparent, var(--xt-primary), transparent);
    height: 2px;
    border: none;
}

/* 搜索框 */
.xt-search-box {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--xt-bg-secondary);
    border: 1px solid var(--xt-border);
    border-radius: var(--xt-radius-full);
    margin: 16px 0;
    transition: border-color var(--xt-transition-fast);
}

.xt-search-box:focus-within {
    border-color: var(--xt-primary);
}

.xt-search-box svg {
    width: 20px;
    height: 20px;
    color: var(--xt-text-secondary);
    flex-shrink: 0;
}

.xt-search-box input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--xt-text-primary);
    font-size: 0.9375rem;
    outline: none;
}

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

/* 通知条 */
.xt-notice-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--xt-bg-secondary);
    border-radius: var(--xt-radius-md);
    margin: 16px 0;
}

.xt-notice-bar-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.xt-notice-bar-content {
    flex: 1;
    font-size: 0.875rem;
    color: var(--xt-text-primary);
}

.xt-notice-bar-close {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--xt-radius-sm);
    color: var(--xt-text-secondary);
    cursor: pointer;
    transition: all var(--xt-transition-fast);
}

.xt-notice-bar-close:hover {
    background: var(--xt-bg-hover);
    color: var(--xt-text-primary);
}

.xt-notice-bar-close svg {
    width: 16px;
    height: 16px;
}

/* 对话气泡 */
.xt-chat {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin: 16px 0;
}

.xt-chat-message {
    display: flex;
    gap: 12px;
    max-width: 80%;
}

.xt-chat-message.xt-chat-me {
    flex-direction: row-reverse;
    margin-left: auto;
}

.xt-chat-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    flex-shrink: 0;
}

.xt-chat-bubble {
    padding: 10px 14px;
    background: var(--xt-bg-secondary);
    border-radius: var(--xt-radius-lg);
    font-size: 0.875rem;
    color: var(--xt-text-primary);
    line-height: 1.5;
}

.xt-chat-me .xt-chat-bubble {
    background: var(--xt-primary);
    color: #fff;
    border-bottom-right-radius: var(--xt-radius-sm);
}

.xt-chat-other .xt-chat-bubble {
    border-bottom-left-radius: var(--xt-radius-sm);
}

/* 星级评分 */
.xt-rating {
    display: flex;
    gap: 4px;
}

.xt-rating svg {
    width: 20px;
    height: 20px;
    color: var(--xt-border);
    transition: all var(--xt-transition-fast);
}

.xt-rating svg.filled {
    color: #FFD700;
    fill: #FFD700;
}

.xt-rating svg.half {
    color: #FFD700;
}

.xt-rating:hover svg {
    color: #FFD700;
    fill: #FFD700;
}

/* 折叠 */
.xt-details {
    border: 1px solid var(--xt-border);
    border-radius: var(--xt-radius-md);
    margin: 16px 0;
    overflow: hidden;
}

.xt-details summary {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px;
    background: var(--xt-bg-secondary);
    cursor: pointer;
    font-weight: 600;
    color: var(--xt-text-primary);
    user-select: none;
    transition: background var(--xt-transition-fast);
}

.xt-details summary:hover {
    background: var(--xt-bg-hover);
}

.xt-details summary::marker {
    color: var(--xt-primary);
}

.xt-details-content {
    padding: 16px;
    border-top: 1px solid var(--xt-border);
}

/* ========================================
   媒体组件
   ======================================== */

/* 视频卡片 */
.xt-video-card {
    position: relative;
    border-radius: var(--xt-radius-lg);
    overflow: hidden;
    background: var(--xt-bg-secondary);
    margin: 16px 0;
}

.xt-video-thumbnail {
    position: relative;
    aspect-ratio: 16 / 9;
    background: #000;
    cursor: pointer;
}

.xt-video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: opacity var(--xt-transition-fast);
}

.xt-video-thumbnail:hover img {
    opacity: 0.8;
}

.xt-video-play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 64px;
    height: 64px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--xt-transition-fast);
    z-index: 2;
}

.xt-video-thumbnail:hover .xt-video-play-btn {
    transform: translate(-50%, -50%) scale(1.1);
    background: #fff;
}

.xt-video-play-btn svg {
    width: 24px;
    height: 24px;
    color: var(--xt-text-primary);
    margin-left: 4px;
}

.xt-video-duration {
    position: absolute;
    bottom: 12px;
    right: 12px;
    padding: 4px 8px;
    background: rgba(0, 0, 0, 0.8);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--xt-radius-sm);
}

.xt-video-info {
    padding: 16px;
}

.xt-video-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--xt-text-primary);
    margin: 0 0 8px;
    line-height: 1.4;
}

.xt-video-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.8125rem;
    color: var(--xt-text-secondary);
}

.xt-video-channel {
    display: flex;
    align-items: center;
    gap: 8px;
}

.xt-video-channel img {
    width: 24px;
    height: 24px;
    border-radius: 50%;
}

.xt-video-stats {
    display: flex;
    gap: 12px;
}

/* 视频播放器模式 */
.xt-video-player {
    position: relative;
    aspect-ratio: 16 / 9;
    background: #000;
}

.xt-video-player video,
.xt-video-player iframe {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.xt-video-controls {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    display: flex;
    align-items: center;
    gap: 12px;
    opacity: 0;
    transition: opacity var(--xt-transition-fast);
}

.xt-video-player:hover .xt-video-controls,
.xt-video-player:focus-within .xt-video-controls,
.xt-video-controls.visible {
    opacity: 1;
}

.xt-video-control-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: transparent;
    border: none;
    border-radius: 50%;
    color: #fff;
    cursor: pointer;
    transition: background var(--xt-transition-fast);
}

.xt-video-control-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.xt-video-control-btn svg {
    width: 20px;
    height: 20px;
}

.xt-video-progress {
    flex: 1;
    height: 4px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: var(--xt-radius-full);
    cursor: pointer;
    position: relative;
}

.xt-video-progress-bar {
    height: 100%;
    background: var(--xt-primary);
    border-radius: var(--xt-radius-full);
    width: 0%;
    transition: width 0.1s linear;
}

.xt-video-progress:hover {
    height: 6px;
}

.xt-video-time {
    font-size: 0.75rem;
    color: #fff;
    white-space: nowrap;
}

/* 图片画廊 */
.xt-gallery {
    display: grid;
    gap: 8px;
    margin: 16px 0;
}

.xt-gallery-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.xt-gallery-masonry {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    grid-auto-rows: 10px;
}

.xt-gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--xt-radius-md);
    cursor: pointer;
    background: var(--xt-bg-secondary);
}

.xt-gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--xt-transition);
}

.xt-gallery-item:hover img {
    transform: scale(1.05);
}

.xt-gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(transparent 50%, rgba(0, 0, 0, 0.7));
    display: flex;
    align-items: flex-end;
    padding: 16px;
    opacity: 0;
    transition: opacity var(--xt-transition-fast);
}

.xt-gallery-item:hover .xt-gallery-overlay {
    opacity: 1;
}

.xt-gallery-caption {
    color: #fff;
    font-size: 0.875rem;
    font-weight: 500;
}

.xt-gallery-lightbox {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.95);
    align-items: center;
    justify-content: center;
}

.xt-gallery-lightbox.active {
    display: flex;
}

.xt-lightbox-content {
    max-width: 90vw;
    max-height: 90vh;
}

.xt-lightbox-content img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
}

.xt-lightbox-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 48px;
    height: 48px;
    background: transparent;
    border: none;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--xt-transition-fast);
    border-radius: 50%;
}

.xt-lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.xt-lightbox-close svg {
    width: 24px;
    height: 24px;
}

.xt-lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    background: transparent;
    border: none;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--xt-transition-fast);
    border-radius: 50%;
}

.xt-lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.2);
}

.xt-lightbox-nav svg {
    width: 24px;
    height: 24px;
}

.xt-lightbox-prev {
    left: 20px;
}

.xt-lightbox-next {
    right: 20px;
}

.xt-lightbox-caption {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    color: #fff;
    font-size: 0.875rem;
    text-align: center;
    max-width: 80%;
}

/* 轮播画廊 */
.xt-carousel {
    position: relative;
    margin: 16px 0;
    overflow: hidden;
    border-radius: var(--xt-radius-lg);
}

.xt-carousel-track {
    display: flex;
    transition: transform var(--xt-transition);
}

.xt-carousel-slide {
    flex: 0 0 100%;
    width: 100%;
}

.xt-carousel-slide img {
    width: 100%;
    height: auto;
    display: block;
}

.xt-carousel-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 16px 0;
}

.xt-carousel-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--xt-border);
    border: none;
    cursor: pointer;
    transition: all var(--xt-transition-fast);
    padding: 0;
}

.xt-carousel-dot:hover,
.xt-carousel-dot.active {
    background: var(--xt-primary);
    transform: scale(1.2);
}

.xt-carousel-arrows {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    padding: 0 16px;
    transform: translateY(-50%);
    pointer-events: none;
}

.xt-carousel-arrow {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--xt-transition-fast);
    pointer-events: auto;
    box-shadow: var(--xt-shadow-md);
}

.xt-carousel-arrow:hover {
    background: #fff;
    transform: scale(1.1);
}

.xt-carousel-arrow svg {
    width: 20px;
    height: 20px;
    color: var(--xt-text-primary);
}

/* ========================================
   投票组件
   ======================================== */

.xt-poll {
    background: var(--xt-bg-secondary);
    border: 1px solid var(--xt-border);
    border-radius: var(--xt-radius-lg);
    padding: 24px;
    margin: 16px 0;
}

.xt-poll-question {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--xt-text-primary);
    margin: 0 0 20px;
}

.xt-poll-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.xt-poll-option {
    position: relative;
    display: flex;
    align-items: center;
    padding: 16px;
    background: var(--xt-bg-primary);
    border: 2px solid var(--xt-border);
    border-radius: var(--xt-radius-md);
    cursor: pointer;
    transition: all var(--xt-transition-fast);
}

.xt-poll-option:hover {
    border-color: var(--xt-primary);
}

.xt-poll-option.selected {
    border-color: var(--xt-primary);
    background: var(--xt-primary-light);
}

.xt-poll-option input[type="radio"],
.xt-poll-option input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.xt-poll-radio {
    width: 20px;
    height: 20px;
    border: 2px solid var(--xt-border);
    border-radius: 50%;
    margin-right: 12px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--xt-transition-fast);
}

.xt-poll-option.selected .xt-poll-radio {
    border-color: var(--xt-primary);
}

.xt-poll-radio::after {
    content: '';
    width: 10px;
    height: 10px;
    background: var(--xt-primary);
    border-radius: 50%;
    opacity: 0;
    transition: opacity var(--xt-transition-fast);
}

.xt-poll-option.selected .xt-poll-radio::after {
    opacity: 1;
}

.xt-poll-checkbox {
    width: 20px;
    height: 20px;
    border: 2px solid var(--xt-border);
    border-radius: var(--xt-radius-sm);
    margin-right: 12px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--xt-transition-fast);
}

.xt-poll-option.selected .xt-poll-checkbox {
    border-color: var(--xt-primary);
    background: var(--xt-primary);
}

.xt-poll-checkbox svg {
    width: 14px;
    height: 14px;
    color: #fff;
    opacity: 0;
}

.xt-poll-option.selected .xt-poll-checkbox svg {
    opacity: 1;
}

.xt-poll-label {
    flex: 1;
    font-size: 0.9375rem;
    color: var(--xt-text-primary);
}

.xt-poll-percentage {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--xt-text-secondary);
    min-width: 40px;
    text-align: right;
}

.xt-poll-result-bar {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    background: var(--xt-primary-light);
    border-radius: var(--xt-radius-md);
    opacity: 0;
    transition: opacity var(--xt-transition-fast);
    z-index: 0;
}

.xt-poll-option.has-votes .xt-poll-result-bar {
    opacity: 1;
}

.xt-poll-option.has-votes .xt-poll-label,
.xt-poll-option.has-votes .xt-poll-percentage {
    position: relative;
    z-index: 1;
}

.xt-poll-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--xt-border);
}

.xt-poll-votes {
    font-size: 0.8125rem;
    color: var(--xt-text-secondary);
}

.xt-poll-btn {
    padding: 8px 16px;
    background: var(--xt-primary);
    color: #fff;
    border: none;
    border-radius: var(--xt-radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--xt-transition-fast);
}

.xt-poll-btn:hover {
    background: var(--xt-primary-dark);
}

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

/* ========================================
   倒计时组件
   ======================================== */

.xt-countdown {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin: 24px 0;
}

.xt-countdown-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 80px;
}

.xt-countdown-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--xt-text-primary);
    line-height: 1;
    font-variant-numeric: tabular-nums;
}

.xt-countdown-label {
    font-size: 0.75rem;
    color: var(--xt-text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 8px;
}

.xt-countdown-separator {
    display: flex;
    align-items: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--xt-text-primary);
    line-height: 1;
}

.xt-countdown-compact .xt-countdown-value {
    font-size: 1.5rem;
}

.xt-countdown-compact .xt-countdown-item {
    min-width: 60px;
}

.xt-countdown-inline {
    display: inline-flex;
    gap: 4px;
}

.xt-countdown-inline .xt-countdown-value {
    font-size: 1rem;
}

.xt-countdown-inline .xt-countdown-label {
    display: none;
}

/* ========================================
   公告组件
   ======================================== */

.xt-announcement {
    position: relative;
    background: linear-gradient(135deg, var(--xt-primary) 0%, var(--xt-primary-dark) 100%);
    border-radius: var(--xt-radius-lg);
    padding: 24px;
    margin: 16px 0;
    color: #fff;
    overflow: hidden;
}

.xt-announcement::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.xt-announcement-header {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 12px;
}

.xt-announcement-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.xt-announcement-icon svg {
    width: 20px;
    height: 20px;
}

.xt-announcement-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin: 0;
}

.xt-announcement-content {
    font-size: 0.9375rem;
    opacity: 0.9;
    line-height: 1.6;
}

.xt-announcement-content p {
    margin: 0 0 12px;
}

.xt-announcement-content p:last-child {
    margin-bottom: 0;
}

.xt-announcement-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 32px;
    height: 32px;
    background: transparent;
    border: none;
    border-radius: 50%;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--xt-transition-fast);
}

.xt-announcement-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.xt-announcement-close svg {
    width: 16px;
    height: 16px;
}

/* ========================================
   问答组件 (FAQ)
   ======================================== */

.xt-faq {
    margin: 16px 0;
}

.xt-faq-item {
    border: 1px solid var(--xt-border);
    border-radius: var(--xt-radius-md);
    margin-bottom: 12px;
    overflow: hidden;
}

.xt-faq-item:last-child {
    margin-bottom: 0;
}

.xt-faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: var(--xt-bg-secondary);
    border: none;
    cursor: pointer;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--xt-text-primary);
    text-align: left;
    transition: background var(--xt-transition-fast);
}

.xt-faq-question:hover {
    background: var(--xt-bg-hover);
}

.xt-faq-question:focus {
    outline: 2px solid var(--xt-primary);
    outline-offset: -2px;
}

.xt-faq-icon {
    width: 20px;
    height: 20px;
    color: var(--xt-text-secondary);
    transition: transform var(--xt-transition);
    flex-shrink: 0;
}

.xt-faq-item.open .xt-faq-icon {
    transform: rotate(180deg);
}

.xt-faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--xt-transition);
}

.xt-faq-item.open .xt-faq-answer {
    max-height: 500px;
}

.xt-faq-answer-content {
    padding: 16px 20px;
    font-size: 0.9375rem;
    color: var(--xt-text-secondary);
    line-height: 1.6;
}

.xt-faq-answer-content p {
    margin: 0;
}

/* ========================================
   特色卡片
   ======================================== */

.xt-feature-card {
    background: var(--xt-bg-secondary);
    border: 1px solid var(--xt-border);
    border-radius: var(--xt-radius-lg);
    padding: 24px;
    margin: 16px 0;
    transition: all var(--xt-transition-fast);
}

.xt-feature-card:hover {
    border-color: var(--xt-primary);
    transform: translateY(-4px);
    box-shadow: var(--xt-shadow-lg);
}

.xt-feature-icon {
    width: 56px;
    height: 56px;
    background: var(--xt-primary-light);
    border-radius: var(--xt-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    color: var(--xt-primary);
}

.xt-feature-icon svg {
    width: 28px;
    height: 28px;
}

.xt-feature-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--xt-text-primary);
    margin: 0 0 8px;
}

.xt-feature-desc {
    font-size: 0.9375rem;
    color: var(--xt-text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* ========================================
   列表组件
   ======================================== */

.xt-list {
    list-style: none;
    padding: 0;
    margin: 16px 0;
}

.xt-list-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--xt-border);
}

.xt-list-item:last-child {
    border-bottom: none;
}

.xt-list-icon {
    width: 20px;
    height: 20px;
    color: var(--xt-primary);
    flex-shrink: 0;
    margin-top: 2px;
}

.xt-list-icon svg {
    width: 100%;
    height: 100%;
}

.xt-list-content {
    flex: 1;
}

.xt-list-title {
    font-weight: 600;
    color: var(--xt-text-primary);
    margin-bottom: 4px;
}

.xt-list-desc {
    font-size: 0.875rem;
    color: var(--xt-text-secondary);
}

/* ========================================
   徽章列表
   ======================================== */

.xt-badge-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 16px 0;
}

.xt-badge-list .xt-badge {
    cursor: default;
}

.xt-badge-list a.xt-badge:hover {
    opacity: 0.8;
}

/* ========================================
   响应式短代码 */
@media (max-width: 768px) {
    .xt-stats {
        grid-template-columns: 1fr;
    }

    .xt-pricing {
        grid-template-columns: 1fr;
    }

    .xt-price-card.xt-price-featured {
        transform: none;
    }

    .xt-price-card.xt-price-featured:hover {
        transform: translateY(-4px);
    }

    .xt-chat-message {
        max-width: 90%;
    }

    .xt-countdown {
        gap: 8px;
    }

    .xt-countdown-value {
        font-size: 1.75rem;
    }

    .xt-countdown-separator {
        font-size: 1.75rem;
    }

    .xt-video-play-btn {
        width: 48px;
        height: 48px;
    }

    .xt-lightbox-nav {
        display: none;
    }
}

/* ========================================
   无障碍访问优化
   ======================================== */

/* 焦点样式 */
.xt-focus-visible:focus,
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--xt-primary);
    outline-offset: 2px;
}

/* 跳转链接 */
.xt-skip-link {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    padding: 12px 24px;
    background: var(--xt-primary);
    color: #fff;
    text-decoration: none;
    border-radius: 0 0 var(--xt-radius-md) var(--xt-radius-md);
    z-index: 10000;
    transition: top var(--xt-transition-fast);
}

.xt-skip-link:focus {
    top: 0;
}

/* 屏幕阅读器专用 */
.xt-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.xt-sr-only-focusable:focus {
    position: static;
    width: auto;
    height: auto;
    padding: inherit;
    margin: inherit;
    overflow: visible;
    clip: auto;
    white-space: normal;
}

/* 减少动画 (尊重用户偏好) */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
    .xt-alert {
        border-width: 2px;
    }

    .xt-button {
        border-width: 2px;
    }

    .xt-tag {
        border: 2px solid currentColor;
    }

    .xt-badge {
        border: 2px solid currentColor;
    }
}

/* 键盘导航增强 */
.xt-keyboard-nav {
    outline: none;
}

.xt-keyboard-nav:focus-within {
    outline: 2px dashed var(--xt-primary);
    outline-offset: 4px;
}

/* 链接和按钮的键盘提示 */
[data-keyboard-hint]::after {
    content: attr(data-keyboard-hint);
    display: none;
    margin-left: 8px;
    padding: 2px 6px;
    background: var(--xt-bg-tertiary);
    border-radius: var(--xt-radius-sm);
    font-size: 0.75rem;
    color: var(--xt-text-secondary);
}

.xt-keyboard-nav:focus-within [data-keyboard-hint]::after {
    display: inline;
}

/* ARIA 状态样式 */
[aria-busy="true"] {
    cursor: wait;
}

[aria-disabled="true"],
[aria-disabled="true"]:hover {
    cursor: not-allowed;
    opacity: 0.5;
}

[aria-expanded="false"] .xt-accordion-icon {
    transform: rotate(0deg);
}

[aria-expanded="true"] .xt-accordion-icon {
    transform: rotate(180deg);
}

/* 轮播ARIA样式 */
[role="tablist"] {
    display: flex;
}

[role="tab"] {
    padding: 8px 16px;
    border: none;
    background: transparent;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all var(--xt-transition-fast);
}

[role="tab"]:hover {
    background: var(--xt-bg-hover);
}

[role="tab"][aria-selected="true"] {
    border-bottom-color: var(--xt-primary);
    color: var(--xt-primary);
}

[role="tabpanel"] {
    padding: 16px 0;
}