/**
 * 天下足球主题移动端样式
 * 提供响应式设计和移动端优化
 */

/* ===== 移动端防缩放规则 ===== */
@media (max-width: 768px) {
    * {
        -webkit-text-size-adjust: 100% !important;
        -ms-text-size-adjust: 100% !important;
        -moz-text-size-adjust: 100% !important;
        transform: none !important;
        transform-origin: top left !important;
        transition: none !important;
        zoom: 1 !important;
    }
    
    html, body {
        zoom: 1 !important;
        -webkit-text-size-adjust: 100% !important;
        -ms-text-size-adjust: 100% !important;
        -moz-text-size-adjust: 100% !important;
        transform: none !important;
        transform-origin: top left !important;
        transition: none !important;
        overflow-x: hidden !important;
        -webkit-tap-highlight-color: transparent !important;
    }
    
    /* 移除所有触摸设备的缩放效果 */
    .post-card,
    .quick-links .card,
    .tab-item2,
    .back-btn,
    .post-thumb-area img,
    a {
        transform: none !important;
        transform-origin: top left !important;
        transition: none !important;
        zoom: 1 !important;
        will-change: auto !important;
    }
    
    /* 移除悬停和激活状态的缩放效果 */
    .post-card:hover,
    .quick-links .card:hover,
    .tab-item2:hover,
    .back-btn:hover,
    .post-thumb-area img:hover,
    a:hover,
    .post-card:active,
    .quick-links .card:active,
    .tab-item2:active,
    .back-btn:active,
    .post-thumb-area img:active,
    a:active {
        transform: none !important;
        scale: none !important;
        transition: none !important;
    }
}

/* ===== 覆盖主样式中的900px媒体查询 - 已合并到下方规则 ===== */

/* ===== 基础移动端优化 ===== */
@media (max-width: 768px) {
    body {
        font-size: 16px;
        -webkit-text-size-adjust: 100%;
        -webkit-tap-highlight-color: transparent;
    }
    
    .container {
        padding: 0 15px !important;
        max-width: 100% !important;
        margin: 0 auto !important;
        box-sizing: border-box !important;
        overflow-x: hidden !important;
        width: 100% !important;
    }
    
    /* 全局移动端防溢出 */
    body {
        overflow-x: hidden !important;
        width: 100% !important;
        max-width: 100% !important;
    }
    
    html {
        overflow-x: hidden !important;
        width: 100% !important;
        max-width: 100% !important;
    }
    
    * {
        box-sizing: border-box !important;
        max-width: 100% !important;
    }
    
    /* 英雄区域移动端优化 */
    .hero {
        padding: 16px 0;
        min-height: 140px;
        flex-direction: column !important;
        text-align: center;
        gap: 12px;
    }
    
    .hero .logo-hero {
        flex: none !important;
        width: 100% !important;
        order: 1;
        margin-bottom: 8px;
    }
    
    .hero .logo-hero a {
        font-size: 1.8rem !important;
        line-height: 1.2 !important;
    }
    
    .hero .logo-hero div {
        font-size: 0.8rem !important;
        margin-top: 2px !important;
    }
    
    .hero > div:last-child {
        flex: none !important;
        width: 100% !important;
        order: 2;
        padding: 0 10px;
    }
    
    .hero h1 {
        font-size: 1.1em !important;
        margin: 0 0 6px 0 !important;
        line-height: 1.3;
    }
    
    .hero p {
        font-size: 0.9em !important;
        margin: 0 0 12px 0 !important;
    }
    
    /* 搜索表单移动端优化 */
    .main-search-form {
        max-width: 100% !important;
        margin: 0 auto !important;
        padding: 6px 8px !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
    
    .main-search-input {
        font-size: 16px !important;
        padding: 10px 12px !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
    
    .main-search-btn {
        padding: 8px 16px !important;
        font-size: 0.9em !important;
        white-space: nowrap !important;
        flex-shrink: 0 !important;
    }
    
    /* 标签导航移动端优化 */
    .article-tab-nav {
        gap: 6px !important;
        overflow-x: auto !important;
        overflow-y: hidden !important;
        padding: 4px 10px !important;
        margin: 16px 0 !important;
        -webkit-overflow-scrolling: touch !important;
        scrollbar-width: none !important;
        -ms-overflow-style: none !important;
        white-space: nowrap !important;
        display: flex !important;
        flex-wrap: nowrap !important;
        justify-content: flex-start !important;
    }
    
    .article-tab-nav::-webkit-scrollbar {
        display: none !important;
    }
    
    .tab-item2 {
        min-width: 90px !important;
        height: 42px !important;
        font-size: 0.85em !important;
        white-space: nowrap !important;
        flex-shrink: 0 !important;
        border-radius: 10px !important;
        display: inline-flex !important;
        align-items: center !important;
        justify-content: center !important;
        text-align: center !important;
        padding: 0 12px !important;
        box-sizing: border-box !important;
        background: #fff !important;
        color: #21ba45 !important;
        border: 2px solid transparent !important;
        transition: none !important;
    }
    
    .tab-item2:hover {
        background: #fff !important;
        color: #21ba45 !important;
        border: 2px solid transparent !important;
        transform: none !important;
    }
    
    .tab-item2.active {
        background: #f7fff9 !important;
        color: #21ba45 !important;
        border: 2px solid #21ba45 !important;
        box-shadow: 0 4px 16px rgba(33,186,69,0.10) !important;
    }
    
    /* 文章卡片移动端优化 - 缩略图布局 */
    .post-card {
        flex-direction: row !important;
        padding: 16px !important;
        gap: 12px !important;
        min-height: 0 !important;
        align-items: stretch !important;
    }
    
    .post-thumb-area {
        width: 80px !important;
        height: 60px !important;
        margin: 0 !important;
        order: 2 !important;
        flex-shrink: 0 !important;
        border-radius: 6px !important;
        overflow: hidden !important;
        background: #f7f7f7 !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
    }
    
    .post-thumb-area img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        border-radius: 6px;
        display: block;
    }
    
    .post-content-area {
        order: 1 !important;
        flex: 1 !important;
        min-width: 0 !important;
        display: flex !important;
        flex-direction: column !important;
        justify-content: space-between !important;
        min-height: 60px !important;
    }
    
    .post-content-area header {
        display: flex;
        align-items: flex-start;
        gap: 8px;
        margin-bottom: 6px;
    }
    
    .post-content-area .cat {
        font-size: 0.75em;
        padding: 2px 6px;
        border-radius: 3px;
        flex-shrink: 0;
        white-space: nowrap;
    }
    
    .post-content-area h2 {
        font-size: 1.05em;
        line-height: 1.3;
        margin-bottom: 6px;
    }
    
    .post-content-area h2 a {
        color: #333;
        text-decoration: none;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .desc {
        font-size: 0.9em;
        line-height: 1.4;
        color: #666;
        margin-bottom: 8px;
        display: -webkit-box;
        -webkit-line-clamp: 3;
        -webkit-box-orient: vertical;
        overflow: hidden;
        text-overflow: ellipsis;
        flex: 1;
    }
    
    .info {
        gap: 8px !important;
        font-size: 0.85em !important;
        flex-direction: row !important;
        flex-wrap: nowrap !important;
        align-items: center !important;
        overflow-x: auto !important;
        overflow-y: hidden !important;
        white-space: nowrap !important;
        -webkit-overflow-scrolling: touch !important;
        scrollbar-width: none !important;
        -ms-overflow-style: none !important;
        padding: 4px 0 !important;
        margin-top: 8px !important;
    }
    
    .info::-webkit-scrollbar {
        display: none !important;
    }
    
    .info > * {
        flex-shrink: 0 !important;
        white-space: nowrap !important;
    }
    
    .info .post-tags {
        max-width: 200px !important;
        overflow: hidden !important;
        text-overflow: ellipsis !important;
        white-space: nowrap !important;
    }
    
    /* 元数据项样式优化 */
    .info .post-author,
    .info time,
    .info .post-views {
        color: #666 !important;
        font-size: inherit !important;
    }
    
    .single-meta span {
        color: #666 !important;
        font-size: inherit !important;
    }
    
    /* 标签样式优化 */
    .info .post-tags {
        color: #21ba45 !important;
    }
    
    .single-meta .icon-meta {
        color: #21ba45 !important;
        margin-right: 2px !important;
    }
    
    /* 单页布局移动端优化 */
    body.single .single-main-wrapper,
    .single .single-main-wrapper {
        flex-direction: column !important;
        margin: 16px auto 0 auto !important;
        gap: 24px !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        overflow-x: hidden !important;
    }
    
    body.single .single-main-content,
    .single .single-main-content {
        padding: 16px 12px !important;
        margin-bottom: 0 !important;
        order: 1 !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        overflow-x: hidden !important;
        word-wrap: break-word !important;
        word-break: break-word !important;
    }
    
    body.single .single-sidebar,
    .single .single-sidebar {
        max-width: 100% !important;
        min-width: 0 !important;
        order: 2 !important;
        width: 100% !important;
        margin-top: 0 !important;
        box-sizing: border-box !important;
    }
    
    .single-title {
        font-size: 1.3em !important;
        flex-direction: column !important;
        align-items: flex-start !important;
        word-wrap: break-word !important;
        word-break: break-word !important;
        line-height: 1.4 !important;
        margin-bottom: 12px !important;
    }
    
    .single-meta {
        flex-direction: row !important;
        flex-wrap: nowrap !important;
        align-items: center !important;
        gap: 8px !important;
        font-size: 0.85em !important;
        margin-bottom: 16px !important;
        overflow-x: auto !important;
        overflow-y: hidden !important;
        white-space: nowrap !important;
        -webkit-overflow-scrolling: touch !important;
        scrollbar-width: none !important;
        -ms-overflow-style: none !important;
        padding: 4px 0 !important;
    }
    
    .single-meta::-webkit-scrollbar {
        display: none !important;
    }
    
    .single-meta > * {
        flex-shrink: 0 !important;
        white-space: nowrap !important;
    }
    
    /* 文章内容移动端优化 */
    .post-content {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        overflow-x: hidden !important;
        word-wrap: break-word !important;
        word-break: break-word !important;
        font-size: 1em !important;
        line-height: 1.7 !important;
        margin-bottom: 24px !important;
    }
    
    .post-content img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
        display: block !important;
        margin: 16px 0 !important;
        border-radius: 8px !important;
    }
    
    .post-content p {
        word-wrap: break-word !important;
        word-break: break-word !important;
        overflow-wrap: break-word !important;
        margin-bottom: 16px !important;
    }
    
    .post-content h1,
    .post-content h2,
    .post-content h3,
    .post-content h4,
    .post-content h5,
    .post-content h6 {
        word-wrap: break-word !important;
        word-break: break-word !important;
        margin: 20px 0 12px 0 !important;
        line-height: 1.4 !important;
    }
    
    .post-content ul,
    .post-content ol {
        padding-left: 20px !important;
        margin-bottom: 16px !important;
    }
    
    .post-content li {
        word-wrap: break-word !important;
        word-break: break-word !important;
        margin-bottom: 8px !important;
    }
    
    .post-content table {
        width: 100% !important;
        max-width: 100% !important;
        overflow-x: auto !important;
        display: block !important;
        white-space: nowrap !important;
        margin: 16px 0 !important;
    }
    
    .post-content td,
    .post-content th {
        word-wrap: break-word !important;
        word-break: break-word !important;
        padding: 8px !important;
    }
    
    /* 面包屑导航移动端优化 */
    .breadcrumb {
        font-size: 0.85em !important;
        margin-bottom: 12px !important;
        word-wrap: break-word !important;
        word-break: break-word !important;
    }
    
    /* 返回按钮移动端优化 */
    .back-btn {
        font-size: 0.9em !important;
        padding: 8px 12px !important;
        margin-bottom: 8px !important;
    }
    
    /* 标签和分享栏移动端优化 */
    .single-tags {
        margin: 16px 0 !important;
        padding-bottom: 12px !important;
    }
    
    .post-tag {
        font-size: 0.8em !important;
        padding: 2px 8px !important;
        margin: 2px 4px 2px 0 !important;
    }
    
    .share-bar {
        margin: 12px 0 !important;
        padding-bottom: 12px !important;
        font-size: 0.9em !important;
    }
    
    .share-bar a {
        margin: 0 2px !important;
        font-size: 0.85em !important;
    }
    
    /* 相关文章移动端优化 */
    .related-posts {
        margin-bottom: 20px !important;
    }
    
    .related-posts h3 {
        font-size: 1em !important;
        margin-bottom: 8px !important;
    }
    
    .related-posts-list {
        gap: 8px !important;
    }
    
    .related-posts-list a {
        width: 48% !important;
        min-width: 120px !important;
    }
    
    .related-posts-list img {
        height: 60px !important;
    }
    
    .related-title {
        font-size: 0.8em !important;
        padding: 6px 8px !important;
    }
    
    /* 快速链接移动端优化 */
    .quick-links {
        gap: 12px;
        margin: 20px 0;
        padding: 0 10px;
        flex-wrap: wrap;
    }
    
    .quick-links .card {
        padding: 16px 20px;
        min-width: 100px;
        font-size: 0.9em;
    }
    
    /* 文章容器移动端优化 */
    #articles-container {
        height: auto !important;
        min-height: 400px !important;
        max-height: none !important;
        overflow-y: visible !important;
        position: relative !important;
        padding: 0 !important;
        margin: 0 !important;
    }
    
    /* 移动端加载提示优化 */
    .loading-message {
        position: fixed !important;
        top: 50% !important;
        left: 50% !important;
        transform: translate(-50%, -50%) !important;
        z-index: 9999 !important;
        background: rgba(255, 255, 255, 0.95) !important;
        padding: 20px !important;
        border-radius: 10px !important;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1) !important;
        text-align: center !important;
        font-size: 14px !important;
        color: #333 !important;
        min-width: 200px !important;
    }
    
    .loading-message .spinner {
        display: inline-block !important;
        width: 20px !important;
        height: 20px !important;
        border: 2px solid #f3f3f3 !important;
        border-top: 2px solid #21ba45 !important;
        border-radius: 50% !important;
        animation: spin 1s linear infinite !important;
        margin-right: 10px !important;
    }
    
    @keyframes spin {
        0% { transform: rotate(0deg); }
        100% { transform: rotate(360deg); }
    }
    
    /* 底部移动端优化 */
    .footer .container {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-left,
    .footer-right {
        width: 100%;
    }
    
    /* 侧边栏移动端优化 */
    .sidebar .widget {
        margin-bottom: 20px;
        padding: 16px;
    }
    
    .ad-widget {
        min-height: 80px;
    }
    
    .ad-widget img {
        height: 80px;
    }
}

/* ===== 小屏幕设备优化 ===== */
@media (max-width: 480px) {
    .hero {
        padding: 12px 0 !important;
        min-height: 120px !important;
    }
    
    .hero .logo-hero a {
        font-size: 1.5rem !important;
    }
    
    .hero .logo-hero div {
        font-size: 0.7rem !important;
    }
    
    .hero h1 {
        font-size: 1em !important;
        margin: 0 0 4px 0 !important;
    }
    
    .hero p {
        font-size: 0.8em !important;
        margin: 0 0 8px 0 !important;
    }
    
    .main-search-form {
        padding: 4px 6px !important;
    }
    
    .main-search-input {
        padding: 8px 10px !important;
        font-size: 16px !important;
    }
    
    .main-search-btn {
        padding: 6px 12px !important;
        font-size: 0.8em !important;
    }
    
    .article-tab-nav {
        gap: 4px !important;
        margin: 12px 0 !important;
        padding: 2px 8px !important;
    }
    
    .tab-item2 {
        min-width: 75px !important;
        height: 38px !important;
        font-size: 0.8em !important;
        border-radius: 8px !important;
        padding: 0 8px !important;
        background: #fff !important;
        color: #21ba45 !important;
        border: 2px solid transparent !important;
    }
    
    .tab-item2:hover {
        background: #fff !important;
        color: #21ba45 !important;
        border: 2px solid transparent !important;
    }
    
    .tab-item2.active {
        background: #f7fff9 !important;
        color: #21ba45 !important;
        border: 2px solid #21ba45 !important;
        box-shadow: 0 4px 16px rgba(33,186,69,0.10) !important;
    }
    
    .post-card {
        padding: 12px !important;
        border-radius: 12px !important;
        margin-bottom: 16px !important;
        gap: 10px !important;
        align-items: stretch !important;
    }
    
    .post-thumb-area {
        width: 70px !important;
        height: 52px !important;
        border-radius: 5px !important;
    }
    
    .post-content-area {
        min-height: 52px !important;
    }
    
    .post-content-area h2 {
        font-size: 0.95em;
        line-height: 1.25;
        margin-bottom: 5px;
    }
    
    .post-content-area h2 a {
        -webkit-line-clamp: 2;
    }
    
    .desc {
        font-size: 0.85em;
        line-height: 1.3;
        margin-bottom: 6px;
        -webkit-line-clamp: 2;
    }
    
    .info {
        font-size: 0.8em !important;
        gap: 6px !important;
        padding: 2px 0 !important;
    }
    
    .info .post-tags {
        max-width: 150px !important;
    }
    
    .single-main-content {
        padding: 12px 8px !important;
    }
    
    .single-title {
        font-size: 1.2em !important;
        line-height: 1.3 !important;
    }
    
    .single-meta {
        font-size: 0.8em !important;
        gap: 6px !important;
        padding: 2px 0 !important;
    }
    
    .post-content {
        font-size: 0.95em !important;
        line-height: 1.6 !important;
        padding: 0 !important;
    }
    
    .post-content img {
        margin: 12px 0 !important;
    }
    
    .post-content h1,
    .post-content h2,
    .post-content h3,
    .post-content h4,
    .post-content h5,
    .post-content h6 {
        font-size: 1.1em !important;
        margin: 16px 0 8px 0 !important;
    }
    
    .quick-links {
        gap: 8px;
        margin: 16px 0;
    }
    
    .quick-links .card {
        padding: 12px 16px;
        min-width: 80px;
        font-size: 0.85em;
    }
    
    .back-btn {
        padding: 8px 16px;
        font-size: 0.9em;
        margin-right: 8px;
    }
    
    .breadcrumb {
        font-size: 0.85em;
    }
}

/* ===== 超小屏幕设备优化 ===== */
@media (max-width: 320px) {
    .hero {
        padding: 10px 0 !important;
        min-height: 110px !important;
    }
    
    .hero .logo-hero a {
        font-size: 1.3rem !important;
    }
    
    .hero .logo-hero div {
        font-size: 0.65rem !important;
    }
    
    .hero h1 {
        font-size: 0.9em !important;
        margin: 0 0 3px 0 !important;
    }
    
    .hero p {
        font-size: 0.75em !important;
        margin: 0 0 6px 0 !important;
    }
    
    .main-search-form {
        padding: 3px 4px !important;
    }
    
    .main-search-input {
        padding: 6px 8px !important;
        font-size: 14px !important;
    }
    
    .main-search-btn {
        padding: 5px 10px !important;
        font-size: 0.75em !important;
    }
    
    .article-tab-nav {
        gap: 3px !important;
        margin: 10px 0 !important;
        padding: 2px 6px !important;
    }
    
    .tab-item2 {
        min-width: 65px !important;
        height: 34px !important;
        font-size: 0.75em !important;
        border-radius: 6px !important;
        padding: 0 6px !important;
        background: #fff !important;
        color: #21ba45 !important;
        border: 2px solid transparent !important;
    }
    
    .tab-item2:hover {
        background: #fff !important;
        color: #21ba45 !important;
        border: 2px solid transparent !important;
    }
    
    .tab-item2.active {
        background: #f7fff9 !important;
        color: #21ba45 !important;
        border: 2px solid #21ba45 !important;
        box-shadow: 0 4px 16px rgba(33,186,69,0.10) !important;
    }
    
    .post-card {
        padding: 10px !important;
        gap: 8px !important;
        align-items: stretch !important;
    }
    
    .post-thumb-area {
        width: 60px !important;
        height: 45px !important;
        border-radius: 4px !important;
    }
    
    .post-content-area {
        min-height: 45px !important;
    }
    
    .post-content-area h2 {
        font-size: 0.9em;
        line-height: 1.2;
        margin-bottom: 4px;
    }
    
    .post-content-area h2 a {
        -webkit-line-clamp: 2;
    }
    
    .desc {
        font-size: 0.8em;
        line-height: 1.25;
        margin-bottom: 5px;
        -webkit-line-clamp: 2;
    }
    
    .single-main-content {
        padding: 10px 6px !important;
    }
    
    .single-title {
        font-size: 1.1em !important;
        line-height: 1.2 !important;
    }
    
    /* 超小屏幕文章容器优化 */
    #articles-container {
        min-height: 300px !important;
    }
    
    .loading-message {
        padding: 15px !important;
        font-size: 13px !important;
        min-width: 180px !important;
    }
    
    .info {
        font-size: 0.75em !important;
        gap: 4px !important;
        padding: 1px 0 !important;
    }
    
    .info .post-tags {
        max-width: 120px !important;
    }
    
    .single-meta {
        font-size: 0.75em !important;
        gap: 4px !important;
        padding: 1px 0 !important;
    }
    
    .post-content {
        font-size: 0.9em !important;
        line-height: 1.5 !important;
    }
    
    .post-content img {
        margin: 10px 0 !important;
    }
    
    .post-content h1,
    .post-content h2,
    .post-content h3,
    .post-content h4,
    .post-content h5,
    .post-content h6 {
        font-size: 1em !important;
        margin: 12px 0 6px 0 !important;
    }
    
    .quick-links .card {
        padding: 10px 12px;
        min-width: 70px;
        font-size: 0.8em;
    }
}

/* ===== 触摸设备优化 ===== */
@media (hover: none) and (pointer: coarse) {
    .post-card:hover,
    .quick-links .card:hover,
    .tab-item2:hover,
    .back-btn:hover {
        transform: none !important;
        box-shadow: inherit !important;
    }
    
    .post-card:active,
    .quick-links .card:active,
    .tab-item2:active,
    .back-btn:active {
        transform: none !important;
        opacity: 0.8 !important;
    }
    
    .post-thumb-area img:hover {
        transform: none !important;
    }
    
    .post-thumb-area img:active {
        transform: none !important;
        opacity: 0.9 !important;
    }
    
    /* 增加触摸目标大小 */
    .tab-item2 {
        min-height: 44px !important;
        min-width: 44px !important;
    }
    
    .main-search-btn {
        min-height: 44px !important;
        min-width: 44px !important;
    }
    
    .back-btn {
        min-height: 44px !important;
        min-width: 44px !important;
    }
    
    /* 优化横向滚动体验 */
    .article-tab-nav {
        scroll-behavior: smooth !important;
        -webkit-overflow-scrolling: touch !important;
        overscroll-behavior-x: contain !important;
    }
    
    .tab-item2 {
        touch-action: manipulation !important;
        user-select: none !important;
        background: #fff !important;
        color: #21ba45 !important;
        border: 2px solid transparent !important;
    }
    
    .tab-item2:hover {
        background: #fff !important;
        color: #21ba45 !important;
        border: 2px solid transparent !important;
        transform: none !important;
    }
    
    .tab-item2:active {
        background: #f7fff9 !important;
        color: #21ba45 !important;
        border: 2px solid #21ba45 !important;
        transform: none !important;
        opacity: 0.8 !important;
    }
    
    .tab-item2.active {
        background: #f7fff9 !important;
        color: #21ba45 !important;
        border: 2px solid #21ba45 !important;
        box-shadow: 0 4px 16px rgba(33,186,69,0.10) !important;
    }
}

/* ===== 滚动指示器样式 ===== */
.scroll-indicator {
    position: absolute;
    top: 50%;
    right: 10px;
    width: 20px;
    height: 20px;
    background: linear-gradient(90deg, transparent, #21ba45);
    border-radius: 50%;
    transform: translateY(-50%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    z-index: 10;
}

.scroll-indicator::before {
    content: '→';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #fff;
    font-size: 12px;
    font-weight: bold;
}

/* ===== 横屏模式优化 ===== */
@media (orientation: landscape) and (max-height: 500px) {
    .hero {
        padding: 10px 0;
        min-height: 120px;
    }
    
    .hero h1 {
        font-size: 1.2em;
        margin-bottom: 4px;
    }
    
    .hero p {
        font-size: 0.9em;
        margin-bottom: 8px;
    }
    
    .main-search-form {
        margin: 8px 0;
    }
}

/* ===== 高分辨率屏幕优化 ===== */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .post-thumb-area img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* ===== 减少动画模式支持 ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===== 高对比度模式支持 ===== */
@media (prefers-contrast: high) {
    .post-card {
        border: 2px solid #000;
    }
    
    .cat {
        border: 1px solid #000;
    }
    
    .tab-item2 {
        border: 2px solid #000;
    }
}

/* ===== 深色模式支持 ===== */
@media (prefers-color-scheme: dark) {
    body {
        background: #1a1a1a;
        color: #e0e0e0;
    }
    
    .post-card,
    .single-main-content,
    .quick-links .card {
        background: #2d2d2d;
        color: #e0e0e0;
        border-color: #404040;
    }
    
    .desc {
        color: #c0c0c0;
    }
    
    .info {
        color: #888;
    }
    
    .single-title {
        color: #e0e0e0;
    }
    
    .post-content {
        color: #c0c0c0;
    }
    
    .breadcrumb,
    .single-meta {
        background: #333;
        color: #c0c0c0;
    }
}

/* ===== 打印样式 ===== */
@media print {
    .hero,
    .article-tab-nav,
    .quick-links,
    .sidebar,
    .back-btn,
    .share-bar,
    .related-posts {
        display: none !important;
    }
    
    .post-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    .single-main-wrapper {
        display: block !important;
    }
    
    .single-main-content {
        width: 100% !important;
        box-shadow: none;
        border: none;
    }
}

/* ===== 性能优化 ===== */
.post-card,
.quick-links .card,
.tab-item2,
.back-btn {
    will-change: transform;
}

.post-thumb-area img {
    will-change: transform;
}

/* ===== 焦点样式优化 ===== */
.post-card:focus-within,
.tab-item2:focus,
.back-btn:focus {
    outline: 2px solid #21ba45;
    outline-offset: 2px;
}

/* ===== 无障碍支持 ===== */
.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;
}