/* ==========================================================================
   首页移动端美化样式 v2
   - 更精致的毛玻璃与渐变
   - 更好的卡片设计（圆角、阴影、触控反馈）
   - 更舒适的导航栏
   - 仅在小屏幕设备（< 992px）生效
   ========================================================================== */

/* ---------- Design Tokens ---------- */
:root {
    --hm-radius-sm: 10px;
    --hm-radius: 16px;
    --hm-radius-lg: 22px;
    --hm-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --hm-shadow: 0 8px 24px rgba(0, 0, 0, 0.10), 0 2px 6px rgba(0, 0, 0, 0.05);
    --hm-shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.14), 0 4px 12px rgba(0, 0, 0, 0.06);
    --hm-primary: #6366f1;
    --hm-primary-light: #818cf8;
    --hm-primary-dark: #4f46e5;
    --hm-accent: #8b5cf6;
    --hm-primary-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --hm-primary-soft: linear-gradient(135deg, rgba(99, 102, 241, 0.12), rgba(139, 92, 246, 0.12));
    --hm-text-primary: #1f2937;
    --hm-text-secondary: #6b7280;
    --hm-text-muted: #9ca3af;
    --hm-bg-card: #ffffff;
    --hm-bg-soft: #f9fafb;
    --hm-border: rgba(0, 0, 0, 0.06);
    --hm-transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    --hm-transition-fast: all 0.18s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   全局基础优化
   ========================================================================== */
@media (max-width: 991.98px) {

    /* 去除点击高亮 + 长按弹出菜单 */
    a, button, .btn, .post-item, .ri-hot-tab, .ri-sidenav-tab,
    .ri-cat-avatar-item, .ri-rank-item, .m-navbar a, .entry-media a {
        -webkit-tap-highlight-color: transparent;
        -webkit-touch-callout: none;
    }

    /* 惯性滚动 + 防止过度滚动弹跳 */
    body {
        -webkit-overflow-scrolling: touch;
        overscroll-behavior-y: contain;
        background: var(--hm-bg-soft);
    }

    /* 安全区适配 */
    .m-navbar {
        padding-bottom: env(safe-area-inset-bottom);
    }

    /* 按钮 active 态触觉反馈 */
    .btn:active,
    .post-item:active,
    .ri-hot-tab:active,
    .ri-sidenav-tab:active,
    .m-navbar a:active,
    .ri-cat-avatar-item:active,
    .ri-rank-item:active {
        transform: scale(0.96);
        transition: transform 0.12s ease;
    }

    /* ==========================================================================
       首页搜索框美化（核心视觉区）
       ========================================================================== */
    .search-bg {
        border-radius: var(--hm-radius-lg) !important;
        overflow: hidden;
        box-shadow: 0 20px 50px rgba(0, 0, 0, 0.18), 0 8px 20px rgba(0, 0, 0, 0.08) !important;
        border: 1px solid rgba(255, 255, 255, 0.1);
        position: relative;
    }

    /* 搜索框顶部柔光层 */
    .search-bg::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 50%;
        background: linear-gradient(180deg, rgba(255, 255, 255, 0.12), transparent);
        pointer-events: none;
        z-index: 1;
    }

    .search-bg .search-warp {
        padding: 2rem 1.1rem !important;
        position: relative;
        z-index: 2;
    }

    /* 搜索框标题 */
    .search-bg .search-title {
        font-size: 1.7rem !important;
        font-weight: 800 !important;
        text-shadow: 0 2px 16px rgba(0, 0, 0, 0.4);
        margin-bottom: 0.4rem !important;
        color: #fff;
        letter-spacing: 0.5px;
        line-height: 1.25;
    }

    .search-bg .search-desc {
        font-size: 0.86rem !important;
        opacity: 0.92;
        text-shadow: 0 1px 8px rgba(0, 0, 0, 0.4);
        margin-bottom: 1.1rem !important;
        color: #fff;
        letter-spacing: 0.3px;
        line-height: 1.5;
    }

    /* 搜索框毛玻璃容器 */
    .search-bg .search-form {
        background: rgba(255, 255, 255, 0.2) !important;
        backdrop-filter: blur(24px) saturate(180%);
        -webkit-backdrop-filter: blur(24px) saturate(180%);
        border: 1px solid rgba(255, 255, 255, 0.28) !important;
        border-radius: 18px !important;
        padding: 6px !important;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.2), inset 0 -1px 0 rgba(0, 0, 0, 0.05);
    }

    .search-bg .search-form-inner {
        width: 100%;
    }

    .search-bg .search-fields {
        display: flex;
        gap: 6px;
        align-items: center;
    }

    /* 搜索分类下拉（移动端隐藏） */
    .search-bg .search-select {
        display: none;
    }

    /* 搜索输入框 */
    .search-bg .search-input {
        background: rgba(255, 255, 255, 0.95) !important;
        border: none !important;
        border-radius: 12px !important;
        height: 48px !important;
        font-size: 0.95rem;
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06) !important;
        flex: 1;
        min-width: 0;
        padding: 0 14px !important;
        color: #1f2937 !important;
        transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .search-bg .search-input::placeholder {
        color: #9ca3af;
        font-size: 0.9rem;
    }

    .search-bg .search-input:focus {
        box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.4), 0 2px 8px rgba(99, 102, 241, 0.15) !important;
        background: #fff !important;
        outline: none;
    }

    /* 搜索提交按钮 */
    .search-bg .search-submit-btn {
        position: relative;
        width: 48px !important;
        height: 48px !important;
        border-radius: 12px !important;
        font-size: 1.05rem;
        background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%) !important;
        border: none !important;
        box-shadow: 0 6px 18px rgba(99, 102, 241, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.3);
        color: #fff;
        flex-shrink: 0;
        cursor: pointer;
        transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        display: flex;
        align-items: center;
        justify-content: center;
        overflow: hidden;
    }

    .search-bg .search-submit-btn .search-btn-icon {
        position: relative;
        z-index: 2;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* 按钮涟漪效果 */
    .search-bg .search-submit-btn .search-btn-ripple {
        position: absolute;
        top: 50%;
        left: 50%;
        width: 0;
        height: 0;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.4);
        transform: translate(-50%, -50%);
        transition: width 0.5s ease, height 0.5s ease, opacity 0.5s ease;
        opacity: 0;
        pointer-events: none;
    }

    .search-bg .search-submit-btn:active .search-btn-ripple {
        width: 120px;
        height: 120px;
        opacity: 0.5;
        transition: width 0.4s ease, height 0.4s ease, opacity 0.4s ease;
    }

    .search-bg .search-submit-btn:active {
        transform: scale(0.92);
        box-shadow: 0 3px 10px rgba(99, 102, 241, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.2);
    }

    /* 按钮呼吸光晕 */
    .search-bg .search-submit-btn::after {
        content: '';
        position: absolute;
        inset: -2px;
        border-radius: 14px;
        background: linear-gradient(135deg, #6366f1, #8b5cf6);
        filter: blur(10px);
        opacity: 0.4;
        z-index: 0;
        animation: hm-search-pulse 2.5s ease-in-out infinite;
    }

    @keyframes hm-search-pulse {
        0%, 100% { opacity: 0.3; transform: scale(1); }
        50% { opacity: 0.6; transform: scale(1.05); }
    }

    /* 热门搜索标签 */
    .search-bg .search-hots {
        margin-top: 1rem;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 6px;
    }

    .search-bg .search-hots > span:first-child {
        font-size: 0.78rem;
        color: rgba(255, 255, 255, 0.9);
        margin-right: 4px;
        font-weight: 600;
        display: inline-flex;
        align-items: center;
        gap: 4px;
    }

    .search-bg .search-hots > span:first-child::before {
        content: '🔥';
        font-size: 0.85rem;
    }

    .search-bg .search-hots a {
        background: rgba(255, 255, 255, 0.2) !important;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        border: 1px solid rgba(255, 255, 255, 0.2) !important;
        border-radius: 20px !important;
        padding: 5px 12px !important;
        font-size: 0.78rem;
        color: #fff !important;
        text-decoration: none;
        transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
        font-weight: 500;
        line-height: 1.4;
    }

    .search-bg .search-hots a:active {
        background: linear-gradient(135deg, #6366f1, #8b5cf6) !important;
        transform: scale(0.93);
        border-color: transparent !important;
        box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
    }

    /* 分类快捷按钮 */
    .search-bg .search-quick-cats {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin-top: 1rem;
    }

    .search-bg .search-quick-cat-btn {
        background: rgba(255, 255, 255, 0.18) !important;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        border: 1px solid rgba(255, 255, 255, 0.2) !important;
        border-radius: 20px !important;
        padding: 6px 12px !important;
        font-size: 0.78rem;
        color: #fff !important;
        text-decoration: none;
        display: inline-flex;
        align-items: center;
        gap: 5px;
        transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
        font-weight: 500;
    }

    .search-bg .search-quick-cat-btn i {
        font-size: 0.75rem;
        opacity: 0.9;
    }

    .search-bg .search-quick-cat-btn em {
        background: rgba(255, 255, 255, 0.25);
        border-radius: 10px;
        padding: 1px 7px;
        font-size: 0.68rem;
        font-style: normal;
        font-weight: 600;
        min-width: 18px;
        text-align: center;
    }

    .search-bg .search-quick-cat-btn:active {
        background: linear-gradient(135deg, #6366f1, #8b5cf6) !important;
        transform: scale(0.93);
        border-color: transparent !important;
        box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
    }

    /* 教程按钮组 */
    .search-bg .search-tutorial-btns {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin-top: 1rem;
        justify-content: center;
    }

    .search-bg .search-tutorial-btns .btn {
        border-radius: 20px !important;
        font-size: 0.85rem;
        padding: 8px 18px !important;
        font-weight: 600;
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        transition: all 0.2s ease;
    }

    .search-bg .search-tutorial-btns .btn:active {
        transform: scale(0.95);
    }

    /* ==========================================================================
       文章卡片美化（首页主体内容）
       ========================================================================== */
    .post-item {
        border-radius: var(--hm-radius) !important;
        overflow: hidden;
        box-shadow: var(--hm-shadow-sm) !important;
        transition: var(--hm-transition);
        background: var(--hm-bg-card);
        border: 1px solid var(--hm-border) !important;
        position: relative;
    }

    .post-item:active {
        box-shadow: var(--hm-shadow) !important;
        transform: translateY(-3px);
    }

    /* 卡片封面 */
    .post-item .entry-media {
        border-radius: var(--hm-radius) var(--hm-radius) 0 0 !important;
        overflow: hidden;
        position: relative;
    }

    .post-item .entry-media .media-img {
        transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .post-item:active .entry-media .media-img {
        transform: scale(1.06);
    }

    /* 卡片标题 */
    .post-item .entry-title {
        font-size: 0.95rem !important;
        font-weight: 600 !important;
        line-height: 1.4 !important;
        margin-bottom: 0.4rem !important;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        letter-spacing: 0.2px;
    }

    .post-item .entry-title a {
        color: var(--hm-text-primary) !important;
        text-decoration: none;
    }

    /* 卡片描述 */
    .post-item .entry-desc {
        font-size: 0.8rem !important;
        color: var(--hm-text-secondary) !important;
        line-height: 1.55 !important;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        margin-bottom: 0.55rem !important;
    }

    /* 卡片元信息 */
    .post-item .entry-meta {
        font-size: 0.72rem !important;
        color: var(--hm-text-muted) !important;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 0.5rem;
    }

    .post-item .entry-meta span {
        margin-right: 0;
        display: inline-flex;
        align-items: center;
        gap: 0.25rem;
    }

    .post-item .meta-price {
        color: var(--hm-primary) !important;
        font-weight: 700;
        background: var(--hm-primary-soft);
        padding: 2px 8px;
        border-radius: 8px;
        font-size: 0.75rem !important;
    }

    /* 卡片角标 */
    .post-item .dct,
    .post-item .dct-br,
    .post-item .dct-source {
        border-radius: var(--hm-radius-sm) !important;
        font-size: 0.7rem !important;
        padding: 0.25rem 0.55rem !important;
        backdrop-filter: blur(6px);
        -webkit-backdrop-filter: blur(6px);
        font-weight: 600;
        box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
    }

    /* 列表样式卡片 */
    .post-item.item-list {
        display: flex !important;
        gap: 0.85rem;
        padding: 0.85rem !important;
    }

    .post-item.item-list .entry-media {
        flex: 0 0 116px;
        width: 116px;
        border-radius: var(--hm-radius-sm) !important;
    }

    .post-item.item-list .entry-wrapper {
        flex: 1;
        min-width: 0;
        padding: 0 !important;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }

    .post-item.item-list .entry-title {
        font-size: 0.9rem !important;
    }

    .post-item.item-list .entry-desc {
        -webkit-line-clamp: 1;
    }

    /* ==========================================================================
       底部移动端导航栏美化
       ========================================================================== */
    .m-navbar {
        background: rgba(255, 255, 255, 0.95) !important;
        backdrop-filter: blur(24px) saturate(180%);
        -webkit-backdrop-filter: blur(24px) saturate(180%);
        border-top: 1px solid rgba(0, 0, 0, 0.06) !important;
        box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.06) !important;
        padding: 6px 8px !important;
    }

    .m-navbar .m-navbar-warp {
        display: flex;
        justify-content: space-around;
        align-items: center;
    }

    .m-navbar a {
        position: relative;
        padding: 6px 0 !important;
        color: var(--hm-text-secondary) !important;
        font-size: 0.7rem !important;
        font-weight: 500;
        display: flex !important;
        flex-direction: column;
        align-items: center;
        gap: 2px;
        transition: var(--hm-transition-fast);
        text-decoration: none;
        min-width: 44px;
        min-height: 44px;
        justify-content: center;
    }

    .m-navbar a i,
    .m-navbar a svg {
        font-size: 1.25rem;
        transition: var(--hm-transition-fast);
    }

    .m-navbar a.active {
        color: var(--hm-primary) !important;
        font-weight: 600;
    }

    .m-navbar a.active i,
    .m-navbar a.active svg {
        transform: translateY(-2px) scale(1.1);
        filter: drop-shadow(0 4px 8px rgba(99, 102, 241, 0.35));
    }

    .m-navbar a.active::before {
        content: '';
        position: absolute;
        top: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 28px;
        height: 3px;
        background: var(--hm-primary-gradient);
        border-radius: 3px;
        box-shadow: 0 2px 6px rgba(99, 102, 241, 0.4);
    }

    /* ==========================================================================
       热门榜单区域
       ========================================================================== */
    .ri-hot-tab,
    .ri-sidenav-tab {
        border-radius: var(--hm-radius-sm) !important;
        transition: var(--hm-transition-fast);
        font-weight: 500;
    }

    .ri-hot-tab.active,
    .ri-sidenav-tab.active {
        background: var(--hm-primary-gradient) !important;
        color: #fff !important;
        box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
    }

    .ri-rank-item {
        border-radius: var(--hm-radius-sm) !important;
        padding: 0.65rem 0.75rem !important;
        transition: var(--hm-transition-fast);
        border: 1px solid transparent !important;
    }

    .ri-rank-item:active {
        background: var(--hm-primary-soft);
        border-color: var(--hm-border) !important;
    }

    .ri-rank-item .rank-num {
        font-weight: 700;
        font-size: 0.9rem;
    }

    /* ==========================================================================
       分类头像区域
       ========================================================================== */
    .ri-cat-avatar-item {
        border-radius: var(--hm-radius) !important;
        transition: var(--hm-transition);
        padding: 0.85rem !important;
        background: var(--hm-bg-card);
        border: 1px solid var(--hm-border) !important;
    }

    .ri-cat-avatar-item:active {
        transform: scale(0.96);
        box-shadow: var(--hm-shadow-sm);
    }

    .ri-cat-avatar-item img,
    .ri-cat-avatar-item .cat-avatar {
        border-radius: 50% !important;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    }

    /* ==========================================================================
       模块标题
       ========================================================================== */
    .module-title,
    .section-title,
    .home-section-title {
        font-size: 1.1rem !important;
        font-weight: 700 !important;
        color: var(--hm-text-primary) !important;
        position: relative;
        padding-left: 12px !important;
        margin-bottom: 1rem !important;
        letter-spacing: 0.3px;
    }

    .module-title::before,
    .section-title::before,
    .home-section-title::before {
        content: '';
        position: absolute;
        left: 0;
        top: 50%;
        transform: translateY(-50%);
        width: 4px;
        height: 70%;
        background: var(--hm-primary-gradient);
        border-radius: 4px;
        box-shadow: 0 0 8px rgba(99, 102, 241, 0.4);
    }

    /* ==========================================================================
       滚动条隐藏（移动端不需要）
       ========================================================================== */
    .scroll-x::-webkit-scrollbar,
    .nav-scroll::-webkit-scrollbar,
    .horizontal-scroll::-webkit-scrollbar {
        display: none;
    }

    .scroll-x,
    .nav-scroll,
    .horizontal-scroll {
        -ms-overflow-style: none;
        scrollbar-width: none;
    }

    /* ==========================================================================
       返回顶部按钮
       ========================================================================== */
    #back-to-top,
    .back-to-top,
    .go-top {
        bottom: 80px !important;
        right: 16px !important;
        width: 44px !important;
        height: 44px !important;
        border-radius: 50% !important;
        background: var(--hm-primary-gradient) !important;
        box-shadow: 0 6px 20px rgba(99, 102, 241, 0.45) !important;
        color: #fff !important;
        display: flex !important;
        align-items: center;
        justify-content: center;
        z-index: 999;
    }

    /* ==========================================================================
       内容容器边距优化
       ========================================================================== */
    .container {
        padding-left: 12px;
        padding-right: 12px;
    }

    .home-section,
    .module,
    section.module {
        margin-bottom: 1.5rem !important;
        padding: 0 !important;
    }

    /* 文章网格更紧凑 */
    .posts-grid,
    .row.posts-row {
        gap: 0.75rem;
    }

    .posts-grid .post-item,
    .row.posts-row .post-item {
        margin-bottom: 0.85rem;
    }
}

/* 结束 @media (max-width: 991.98px) */

/* ==========================================================================
   超小屏（< 576px）进一步收紧边距
   ========================================================================== */
@media (max-width: 575.98px) {
    .container {
        padding-left: 10px;
        padding-right: 10px;
    }

    .search-bg .search-warp {
        padding: 1.4rem 0.85rem !important;
    }

    .search-bg .search-title {
        font-size: 1.45rem !important;
    }

    .search-bg .search-desc {
        font-size: 0.8rem !important;
    }

    .search-bg .search-form {
        padding: 5px !important;
        border-radius: 16px !important;
    }

    .search-bg .search-input {
        height: 44px !important;
        font-size: 0.9rem;
        padding: 0 12px !important;
    }

    .search-bg .search-submit-btn {
        width: 44px !important;
        height: 44px !important;
        font-size: 0.95rem;
    }

    .search-bg .search-hots a,
    .search-bg .search-quick-cat-btn {
        font-size: 0.74rem;
        padding: 4px 10px !important;
    }

    .post-item .entry-title {
        font-size: 0.9rem !important;
    }

    .post-item.item-list .entry-media {
        flex: 0 0 96px;
        width: 96px;
    }
}

/* ==========================================================================
   暗色主题适配
   ========================================================================== */
@media (max-width: 991.98px) {
    [data-bs-theme="dark"] body {
        background: #0f1018;
    }

    [data-bs-theme="dark"] .post-item {
        background: #1a1b2b !important;
        border-color: rgba(255, 255, 255, 0.06) !important;
    }

    [data-bs-theme="dark"] .post-item .entry-title a {
        color: #f3f4f6 !important;
    }

    [data-bs-theme="dark"] .post-item .entry-desc {
        color: #9ca3af !important;
    }

    [data-bs-theme="dark"] .m-navbar {
        background: rgba(15, 16, 24, 0.95) !important;
        border-top-color: rgba(255, 255, 255, 0.08) !important;
    }

    [data-bs-theme="dark"] .m-navbar a {
        color: #9ca3af !important;
    }

    [data-bs-theme="dark"] .m-navbar a.active {
        color: var(--hm-primary-light) !important;
    }

    [data-bs-theme="dark"] .ri-cat-avatar-item {
        background: #1a1b2b;
        border-color: rgba(255, 255, 255, 0.06) !important;
    }

    [data-bs-theme="dark"] .module-title,
    [data-bs-theme="dark"] .section-title,
    [data-bs-theme="dark"] .home-section-title {
        color: #f3f4f6 !important;
    }
}