/* =====================================================
   响应式布局 - 断点适配
   手机 < 768px | 平板 768-1199 | 桌面 >= 1200
   ===================================================== */

/* ============ 移动端 (手机) ============ */
@media (max-width: 767px) {
    .xhs-sidebar {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        top: auto;
        height: 56px;
        width: 100%;
        flex-direction: row;
        justify-content: space-around;
        padding: 0;
        box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
    }

    .xhs-content {
        margin-left: 0;
        min-height: 100vh;
    }

    /* 有底部Tab时预留底部间距 */
    .sidebar-mobile-nav ~ .xhs-content,
    .xhs-content:has(~ .sidebar-mobile-nav) {
        margin-bottom: 56px;
        min-height: calc(100vh - 56px);
    }

    .sidebar-logo {
        display: none;
    }

    .header-logo {
        display: flex;
    }

    .sidebar-nav {
        display: none;
    }

    .sidebar-mobile-nav {
        display: block !important;
        width: 100%;
    }

    .nav-list--mobile {
        display: flex !important;
        flex-direction: row !important;
        align-items: center !important;
        width: 100% !important;
        justify-content: space-around !important;
    }

    .nav-list--mobile .nav-item {
        width: auto;
    }

    .nav-list--mobile .nav-link {
        padding: 6px 8px;
        gap: 2px;
    }

    .nav-list--mobile .nav-icon {
        width: 22px;
        height: 22px;
    }

    .nav-list--mobile .nav-icon svg {
        width: 22px;
        height: 22px;
    }

    .nav-list--mobile .nav-icon--publish {
        background-color: var(--primary);
        color: #fff;
        border-radius: 50%;
        width: 40px;
        height: 40px;
    }

    .nav-list--mobile .nav-icon--publish svg {
        width: 24px;
        height: 24px;
        stroke: #fff;
    }

    .nav-list--mobile .nav-text {
        font-size: 11px;
    }

    .sidebar-divider {
        display: none;
    }

    .sidebar-bottom {
        margin-top: 0;
    }

    .sidebar-more {
        display: none;
    }

    .site-main {
        margin-left: 0;
        padding: 10px;
    }

    .xhs-content {
        margin-left: 0;
    }

    .waterfall-container {
        /* 列数由后台主题设置控制 */
        column-gap: 8px;
        padding: 8px 0;
    }

    .waterfall-item {
        margin-bottom: 8px;
        border-radius: 8px;
    }

    .waterfall-item .card-image {
        border-radius: 8px;
    }

    .waterfall-item .card-content {
        padding: 8px 6px 10px;
    }

    .waterfall-item .card-title {
        font-size: 13px;
        margin-bottom: 6px;
    }

    .waterfall-item .card-meta .author img {
        width: 16px;
        height: 16px;
    }

    .category-nav {
        border-top: 1px solid var(--border);
    }

    .category-list {
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        -ms-overflow-style: none;
        padding: 0 12px;
        height: auto;
        gap: 20px;
        justify-content: flex-start;
    }

    .category-list::-webkit-scrollbar {
        display: none;
    }

    .category-list .category-item {
        padding: 6px 2px;
        font-size: 14px;
        flex-shrink: 0;
    }

    .category-list .category-item.active {
        color: var(--primary);
        font-weight: 600;
    }

    .category-list .category-item.active::after {
        bottom: 0;
        background-color: var(--primary);
    }

    .header-container {
        padding: 12px 12px 6px;
    }

    .header-container .search-box {
        display: block;
        max-width: 100%;
    }

    .search-box form {
        padding: 0 6px 0 14px;
    }

    .search-box input[type="text"] {
        padding: 10px 6px;
    }

    .single-post-container {
        padding: 10px;
    }

    .single-title {
        font-size: 22px;
    }

    .interaction-bar {
        border-radius: var(--radius-lg);
        padding: 10px 12px;
    }

    .pagination {
        margin: 20px 0;
    }

    .pagination .page-numbers {
        padding: 6px 10px;
    }
}

/* ============ 小屏手机 (特别适配) ============ */
@media (max-width: 380px) {
    .waterfall-container {
        /* 列数由后台主题设置控制 */
        column-gap: 6px;
        padding: 6px 0;
    }

    .waterfall-item {
        border-radius: 6px;
        margin-bottom: 6px;
    }

    .waterfall-item .card-image {
        border-radius: 6px;
    }

    .waterfall-item .card-title {
        font-size: 12px;
    }

    .search-box input[type="text"] {
        font-size: 13px;
    }

    .category-list {
        gap: 16px;
    }

    .category-list .category-item {
        font-size: 13px;
    }

    /* 消息页面移动端适配 */
    .messages-page {
        padding: 12px 0;
    }

    .messages-title {
        font-size: 18px;
    }

    .messages-tab {
        padding: 8px 12px;
        font-size: 13px;
    }

    .message-item {
        padding: 10px 8px;
        gap: 10px;
    }

    .message-avatar {
        width: 36px;
        height: 36px;
    }

    .message-avatar img {
        width: 36px;
        height: 36px;
    }

    .message-avatar-icon {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }

    .message-content {
        font-size: 13px;
    }
}

/* ============ 平板端 ============ */
@media (min-width: 768px) and (max-width: 1199px) {
    :root {
        --sidebar-width: 80px;
    }

    .xhs-sidebar {
        width: 80px;
    }

    .logo-icon svg {
        width: 40px;
        height: 40px;
    }

    .logo-text {
        font-size: 11px;
    }

    .nav-link {
        padding: 10px 6px;
    }

    .nav-icon {
        width: 22px;
        height: 22px;
    }

    .nav-icon svg {
        width: 22px;
        height: 22px;
    }

    .nav-text {
        font-size: 11px;
    }

    .site-main {
        padding: 16px;
    }

    .waterfall-container {
        /* 列数由后台主题设置控制 */
        column-gap: 12px;
        padding: 12px 0;
    }

    .waterfall-item {
        margin-bottom: 12px;
    }

    .header-container {
        padding: 16px 16px 8px;
    }

    .category-list {
        padding: 0 16px;
    }
}

/* ============ 桌面端 ============ */
@media (min-width: 1200px) and (max-width: 1599px) {
    /* 列数由后台主题设置控制 */
}

/* ============ 超宽屏 ============ */
@media (min-width: 1600px) {
    .waterfall-container {
        /* 列数由后台主题设置控制 */
        column-gap: 16px;
    }

    .waterfall-item {
        margin-bottom: 16px;
    }
}

/* ============ 横向平板 / 大平板 ============ */
@media (min-width: 900px) and (max-width: 1199px) {
    /* 列数由后台主题设置控制 */
}

/* =====================================================
   触摸设备优化
   ===================================================== */
@media (hover: none) and (pointer: coarse) {
    .waterfall-item {
        transition: none;
    }

    .waterfall-item:active {
        transform: scale(0.98);
        background-color: #fafafa;
    }

    .nav-link {
        transition: none;
    }

    .category-item {
        transition: none;
    }
}

/* =====================================================
   打印样式
   ===================================================== */
@media print {
    .xhs-sidebar {
        display: none;
    }

    .xhs-content {
        margin-left: 0;
    }

    .waterfall-container {
        column-count: 1;
    }

    .waterfall-item {
        break-inside: auto;
        box-shadow: none;
        border: 1px solid #ddd;
    }
}