/**
 * MegaHelp 幫助中心樣式
 * 作者：小帅
 */

:root {
    --mh-red: #D90007;
    --mh-dark: #1a1a1a;
    --mh-text: #333;
    --mh-text-light: #666;
    --mh-text-muted: #999;
    --mh-border: #e5e5e5;
    --mh-bg: #f5f5f5;
    --mh-bg-hover: #f0f0f0;
    --mh-white: #fff;
    --mh-sidebar-width: 260px;
    --mh-toc-width: 240px;
    --mh-header-desktop: 80px;
    --mh-header-tablet: 70px;
    --mh-header-mobile: 60px;
}

* { box-sizing: border-box; }

/* 基础容器 - z-index低于選單 */
.mh-wrap {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 15px;
    line-height: 1.6;
    color: var(--mh-text);
    background: var(--mh-white);
    position: relative;
    z-index: 1;
}

/* 手機端側邊欄/遮罩/篩選按鈕 - 獨立z-index層，不受mh-wrap包裹 */
.mh-mobile-filter-btn,
.mh-sidebar-overlay,
.mh-sidebar-drawer {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 15px;
    line-height: 1.6;
    color: var(--mh-text);
}

/* ===================== 首頁 Hero ===================== */
.mh-hero {
    text-align: center;
    padding-top: calc(var(--mh-header-desktop) + 50px);
    padding-bottom: 70px;
    padding-left: 20px;
    padding-right: 20px;
    background: var(--mh-white);
}

.mh-hero h1 {
    font-size: 40px;
    font-weight: 400;
    color: var(--mh-dark);
    margin: 0 0 12px;
    letter-spacing: -0.5px;
}

.mh-hero > p {
    font-size: 15px;
    color: var(--mh-text-light);
    margin: 0 0 35px;
}

/* 搜尋框 */
.mh-search {
    max-width: 540px;
    margin: 0 auto;
}

.mh-search-box {
    display: flex;
    align-items: stretch;
    border: 1px solid var(--mh-dark) !important;
    border-radius: 5px;
    background: var(--mh-white);
    overflow: hidden;
    box-shadow: none !important;
}

.mh-search-box input[type="search"] {
    flex: 1;
    min-width: 0;
    border: none !important;
    border-top: none !important;
    border-right: none !important;
    border-bottom: none !important;
    border-left: none !important;
    padding: 10px 16px !important;
    font-size: 14px !important;
    color: var(--mh-dark) !important;
    outline: none !important;
    background: transparent !important;
    -webkit-appearance: none !important;
    appearance: none !important;
    border-radius: 0 !important;
    margin: 0 !important;
    line-height: 1.5 !important;
    box-shadow: none !important;
    height: auto !important;
    min-height: 0 !important;
    font-family: inherit !important;
}

.mh-search-box input[type="search"]:focus {
    border: none !important;
    box-shadow: none !important;
    outline: none !important;
}

.mh-search-box input[type="search"]::placeholder { 
    color: #999 !important; 
}

.mh-search-box input[type="search"]::-webkit-search-cancel-button,
.mh-search-box input[type="search"]::-webkit-search-decoration {
    -webkit-appearance: none;
    appearance: none;
}

.mh-search-box button {
    background: var(--mh-dark);
    border: none !important;
    padding: 0 16px;
    cursor: pointer;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin: 0;
    border-radius: 0;
    transition: background-color 0.2s;
}

.mh-search-box button:hover { 
    background: #333; 
}

.mh-search-box button svg {
    width: 16px;
    height: 16px;
    display: block;
}

/* ===================== 精選文章區域 ===================== */
.mh-section {
    padding: 55px 20px;
    max-width: 1100px;
    margin: 0 auto;
}

.mh-section-title {
    font-size: 24px;
    font-weight: 400;
    text-align: center;
    margin: 0 0 25px;
    color: var(--mh-dark);
}

.mh-section-subtitle {
    text-align: center;
    color: var(--mh-text-light);
    margin: -15px 0 40px;
    font-size: 14px;
}

.mh-featured-list {
    max-width: 100%;
    margin: 0 auto;
    column-count: 2;
    column-gap: 50px;
}

.mh-featured-list a {
    display: block;
    color: var(--mh-text);
    text-decoration: none;
    padding: 7px 0;
    font-size: 14px;
    break-inside: avoid;
    line-height: 1.5;
}

.mh-featured-list a::before {
    content: "•";
    margin-right: 12px;
    color: #bbb;
}

.mh-featured-list a:hover { 
    color: var(--mh-red); 
}

/* ===================== 分類卡片網格 ===================== */
.mh-categories-section {
    padding: 55px 20px 80px;
    max-width: 1100px;
    margin: 0 auto;
}

.mh-categories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 45px 35px;
}

.mh-category-card {
    padding-left: 0;
}

.mh-category-icon {
    margin-bottom: 18px;
    height: 44px;
    display: flex;
    align-items: flex-end;
}

.mh-category-icon svg {
    width: 42px;
    height: 42px;
    stroke: var(--mh-red);
    stroke-width: 1.2;
    fill: none;
}

.mh-category-card h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--mh-dark);
    margin: 0 0 14px;
}

.mh-category-card ul {
    list-style: none;
    padding: 0;
    margin: 0 0 16px;
}

.mh-category-card li { 
    margin: 7px 0; 
}

.mh-category-card ul a {
    color: var(--mh-text-light);
    text-decoration: none;
    font-size: 14px;
    line-height: 1.4;
}

.mh-category-card ul a:hover { 
    color: var(--mh-red); 
}

.mh-view-all {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--mh-dark);
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
}

.mh-view-all:hover { 
    color: var(--mh-red); 
}

.mh-view-all svg {
    width: 16px;
    height: 16px;
    stroke-width: 2.5;
}

/* ===================== 三欄佈局 ===================== */
.mh-layout {
    display: flex;
    max-width: 1400px;
    margin: 0 auto;
    min-height: 600px;
    padding-top: var(--mh-header-desktop);
    background: var(--mh-white);
    position: relative;
    z-index: 1;
}

/* 左側邊欄 */
.mh-sidebar {
    width: var(--mh-sidebar-width);
    flex-shrink: 0;
    border-right: 1px solid var(--mh-border);
    padding: 30px 0;
    background: var(--mh-white);
}

.mh-sidebar-inner {
    position: sticky;
    top: calc(var(--mh-header-desktop) + 20px);
}

.mh-nav-item { }

.mh-nav-parent {
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--mh-border);
}

.mh-nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    flex-shrink: 0;
    padding: 12px 0 12px 12px;
    cursor: pointer;
    color: var(--mh-dark);
}

.mh-nav-toggle:hover {
    color: var(--mh-text-muted);
}

.mh-nav-toggle svg {
    width: 8px;
    height: 8px;
    transition: transform 0.2s;
    stroke-width: 2.5;
}

.mh-nav-item.open .mh-nav-toggle svg {
    transform: rotate(90deg);
}

.mh-nav-parent-link {
    flex: 1;
    display: block;
    padding: 12px 25px 12px 0;
    font-weight: 600;
    color: var(--mh-dark);
    font-size: 13px;
    text-decoration: none;
    transition: color 0.15s;
}

/* 父級選單悬停 - 文字变红 */
.mh-nav-parent-link:hover { 
    color: var(--mh-red);
}

.mh-nav-children {
    display: none;
    padding: 8px 0 12px;
    border-bottom: 1px solid var(--mh-border);
    background: var(--mh-white);
}

.mh-nav-item.open .mh-nav-children { 
    display: block; 
}

/* 子選單樣式 - 无红色边框线 */
.mh-nav-children a {
    display: block;
    padding: 8px 25px 8px 43px;
    color: var(--mh-text-light);
    text-decoration: none;
    font-size: 13px;
    transition: background-color 0.15s;
    line-height: 1.4;
}

/* 子選單悬停 - 只变背景色 */
.mh-nav-children a:hover { 
    background-color: var(--mh-bg-hover);
}

/* 子選單激活状态 - 只有文字变红，无边框线 */
.mh-nav-children a.active {
    color: var(--mh-red);
    background-color: transparent;
}

/* 主內容区 */
.mh-main {
    flex: 1;
    padding: 35px 50px 60px;
    min-width: 0;
    border-right: 1px solid var(--mh-border);
    background: var(--mh-white);
}

.mh-main-full {
    border-right: none;
}

/* 右侧TOC */
.mh-toc {
    width: var(--mh-toc-width);
    flex-shrink: 0;
    padding: 35px 25px;
    background: var(--mh-white);
}

.mh-toc-inner {
    position: sticky;
    top: calc(var(--mh-header-desktop) + 35px);
}

.mh-toc h4 {
    font-size: 12px;
    font-weight: 600;
    color: var(--mh-red);
    margin: 0 0 18px;
}

.mh-toc ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mh-toc li { 
    margin: 0; 
}

.mh-toc a {
    display: block;
    padding: 8px 0;
    color: var(--mh-text);
    text-decoration: none;
    font-size: 13px;
    line-height: 1.45;
    transition: color 0.15s;
}

.mh-toc a:hover { 
    color: var(--mh-red); 
}

.mh-toc a.active { 
    color: var(--mh-red);
    font-weight: 500;
}

/* ===================== 麵包屑 ===================== */
.mh-breadcrumb {
    font-size: 13px;
    color: var(--mh-text-muted);
    margin-bottom: 22px;
    line-height: 1.5;
}

.mh-breadcrumb a {
    color: var(--mh-text-muted);
    text-decoration: none;
    transition: color 0.15s;
}

.mh-breadcrumb a:hover { 
    color: var(--mh-red); 
}

.mh-breadcrumb span { 
    margin: 0 8px; 
}

/* ===================== 分類頁 ===================== */
.mh-page-title {
    font-size: 30px;
    font-weight: 400;
    color: var(--mh-dark);
    margin: 0 0 40px;
    letter-spacing: -0.3px;
}

.mh-sub-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--mh-red);
    margin: 0 0 22px;
}

/* 精選文章卡片 */
.mh-featured-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 50px;
}

.mh-featured-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 22px;
    border: 1px solid #ddd;
    text-decoration: none;
    color: var(--mh-text);
    transition: border-color 0.2s;
    background: var(--mh-white);
}

.mh-featured-card:hover { 
    border-color: #aaa; 
}

.mh-featured-card span {
    flex: 1;
    font-size: 14px;
    line-height: 1.45;
    color: var(--mh-text);
}

.mh-featured-card svg {
    width: 18px;
    height: 18px;
    color: #bbb;
    flex-shrink: 0;
    margin-left: 15px;
    stroke-width: 2;
}

/* 所有文章列表 */
.mh-all-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--mh-red);
    margin: 0 0 22px;
}

.mh-articles-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mh-articles-list li { 
    margin: 11px 0; 
}

.mh-articles-list a {
    color: var(--mh-text);
    text-decoration: none;
    font-size: 14px;
    line-height: 1.5;
    transition: color 0.15s;
}

.mh-articles-list a:hover { 
    color: var(--mh-red); 
}

/* ===================== 文章詳情頁 ===================== */
.mh-article-header { 
    margin-bottom: 22px; 
}

.mh-article-header h1 {
    font-size: 30px;
    font-weight: 400;
    color: var(--mh-dark);
    margin: 0 0 14px;
    line-height: 1.3;
    letter-spacing: -0.3px;
}

.mh-article-meta {
    color: var(--mh-text-muted);
    font-size: 12px;
    margin-bottom: 14px;
}

/* 分享按鈕 */
.mh-share-buttons {
    display: flex;
    gap: 8px;
    margin-bottom: 28px;
}

.mh-share-btn {
    width: 34px;
    height: 34px;
    border: 1px solid #ddd;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--mh-text);
    text-decoration: none;
    transition: all 0.15s;
    background: var(--mh-white);
}

.mh-share-btn:hover { 
    border-color: var(--mh-text); 
}

.mh-share-btn svg {
    width: 14px;
    height: 14px;
}

/* 文章內容 */
.mh-article-content {
    font-size: 15px;
    line-height: 1.7;
    color: var(--mh-text);
}

.mh-article-content h2 {
    font-size: 24px;
    font-weight: 400;
    color: var(--mh-dark);
    margin: 38px 0 18px;
    letter-spacing: -0.3px;
}

.mh-article-content h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--mh-dark);
    margin: 30px 0 14px;
}

.mh-article-content p { 
    margin: 15px 0; 
}

.mh-article-content ul,
.mh-article-content ol {
    margin: 15px 0;
    padding-left: 28px;
}

.mh-article-content li { 
    margin: 7px 0; 
}

.mh-article-content a {
    color: var(--mh-text);
    text-decoration: underline;
    transition: color 0.15s;
}

.mh-article-content a:hover { 
    color: var(--mh-red); 
}

/* 提示框 */
.mh-notice {
    display: flex;
    gap: 14px;
    padding: 18px 22px;
    margin: 22px 0;
    background: #FFF8E1;
    border-left: 4px solid #F5A623;
}

.mh-notice-icon {
    flex-shrink: 0;
    padding-top: 2px;
}

.mh-notice-icon svg {
    width: 20px;
    height: 20px;
    stroke: #F5A623;
    fill: none;
}

.mh-notice-content { 
    flex: 1; 
    font-size: 14px;
    line-height: 1.6;
}

.mh-notice-content p {
    margin: 0;
}

.mh-notice-title {
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--mh-dark);
}

.mh-notice.info { 
    background: #E3F2FD; 
    border-left-color: #2196F3; 
}
.mh-notice.info .mh-notice-icon svg { 
    stroke: #2196F3; 
}

.mh-notice.danger { 
    background: #FFEBEE; 
    border-left-color: var(--mh-red); 
}
.mh-notice.danger .mh-notice-icon svg { 
    stroke: var(--mh-red); 
}

.mh-notice.tip { 
    background: #E8F5E9; 
    border-left-color: #4CAF50; 
}
.mh-notice.tip .mh-notice-icon svg { 
    stroke: #4CAF50; 
}

/* 相關文章 */
.mh-related {
    margin-top: 50px;
}

.mh-related h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--mh-red);
    margin: 0 0 20px;
}

.mh-related ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mh-related li { 
    margin: 11px 0; 
}

.mh-related a {
    color: var(--mh-text);
    text-decoration: none;
    font-size: 14px;
    line-height: 1.5;
    transition: color 0.15s;
}

.mh-related a:hover { 
    color: var(--mh-red); 
}

/* ===================== 移動端篩選按鈕和彈窗 ===================== */
.mh-mobile-filter-btn {
    display: none;
    position: fixed;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 32px;
    height: 48px;
    background: rgba(180, 180, 180, 0.75);
    color: #fff;
    border: none;
    border-radius: 0 6px 6px 0;
    cursor: pointer;
    z-index: 99999;
    box-shadow: 2px 2px 8px rgba(0,0,0,0.15);
    align-items: center;
    justify-content: center;
}

.mh-mobile-filter-btn:hover {
    background: rgba(160, 160, 160, 0.85);
}

.mh-mobile-filter-btn svg {
    width: 18px;
    height: 18px;
}

/* 側邊欄彈窗遮罩 */
.mh-sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 999998;
    opacity: 0;
    transition: opacity 0.3s;
}

.mh-sidebar-overlay.active {
    display: block;
    opacity: 1;
}

/* 移動端側邊欄彈窗 - 80%寬度 */
.mh-sidebar-drawer {
    position: fixed;
    top: 0;
    left: -85%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    height: 100dvh; /* 動態視窗高度，避免移動端瀏覽器地址欄問題 */
    background: var(--mh-white);
    z-index: 999999;
    overflow-y: auto;
    transition: left 0.3s ease;
    box-shadow: 2px 0 15px rgba(0,0,0,0.15);
}

.mh-sidebar-drawer.active {
    left: 0;
}

.mh-sidebar-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    border-bottom: 1px solid var(--mh-border);
    position: sticky;
    top: 0;
    background: var(--mh-white);
    z-index: 1;
}

.mh-sidebar-drawer-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--mh-dark);
}

.mh-sidebar-drawer-close {
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--mh-text);
}

.mh-sidebar-drawer-close:hover {
    background: var(--mh-bg-hover);
}

.mh-sidebar-drawer-close svg {
    width: 20px;
    height: 20px;
}

.mh-sidebar-drawer-content {
    padding: 0;
}

/* 移動端側邊欄樣式 */
.mh-sidebar-mobile {
    padding: 10px 0;
}

.mh-sidebar-mobile .mh-nav-toggle {
    padding-left: 16px;
}

.mh-sidebar-mobile .mh-nav-parent-link {
    padding: 14px 20px 14px 0;
}

.mh-sidebar-mobile .mh-nav-children a {
    padding: 10px 20px 10px 40px;
}

/* ===================== 回應式 - 平板 (1100px) ===================== */
@media (max-width: 1100px) {
    :root {
        --mh-header-desktop: var(--mh-header-tablet);
    }
    
    .mh-toc { 
        display: none; 
    }
    .mh-main { 
        border-right: none; 
    }
    
    .mh-sidebar-inner {
        top: calc(var(--mh-header-tablet) + 20px);
    }
}

/* ===================== 回應式 - 小平板 (900px) ===================== */
@media (max-width: 900px) {
    .mh-categories-grid { 
        grid-template-columns: repeat(2, 1fr); 
        gap: 30px 20px;
    }
}

/* ===================== 回應式 - 手機 (768px) ===================== */
@media (max-width: 768px) {
    :root {
        --mh-header-desktop: var(--mh-header-mobile);
    }
    
    .mh-layout { 
        flex-direction: column;
        padding-top: var(--mh-header-mobile);
    }
    
    /* 手機端隱藏桌面側邊欄 */
    .mh-sidebar {
        display: none;
    }
    
    /* 顯示篩選按鈕 */
    .mh-mobile-filter-btn {
        display: flex;
    }
    
    .mh-hero { 
        padding: 25px 15px 40px;
        padding-top: calc(var(--mh-header-mobile) + 25px);
    }
    
    .mh-hero h1 { 
        font-size: 26px; 
    }
    
    .mh-search {
        max-width: 100%;
    }
    
    .mh-featured-list { 
        column-count: 1; 
    }
    
    .mh-featured-cards { 
        grid-template-columns: 1fr; 
    }
    
    /* 手機端分類卡片2列 */
    .mh-categories-grid { 
        grid-template-columns: repeat(2, 1fr); 
        gap: 25px 15px; 
    }
    
    .mh-category-card h3 {
        font-size: 14px;
        margin-bottom: 10px;
    }
    
    /* 手機端顯示子分類列表 */
    .mh-category-card ul {
        display: block;
    }
    
    .mh-category-icon {
        margin-bottom: 12px;
        height: 38px;
    }
    
    .mh-category-icon svg {
        width: 36px;
        height: 36px;
    }
    
    .mh-main { 
        padding: 25px 15px 40px; 
    }
    
    .mh-page-title,
    .mh-article-header h1 {
        font-size: 22px;
    }
    
    .mh-section,
    .mh-categories-section {
        padding: 40px 15px;
    }
    
    .mh-breadcrumb {
        font-size: 11px;
    }
    
    .mh-search-results-page {
        padding-top: calc(var(--mh-header-mobile) + 25px);
        padding-bottom: 50px;
    }
    
    .mh-search-results-header h1 {
        font-size: 24px;
    }
}

/* ===================== 搜尋結果頁 ===================== */
.mh-search-results-page {
    padding-top: calc(var(--mh-header-desktop) + 50px);
    padding-bottom: 80px;
    padding-left: 20px;
    padding-right: 20px;
    background: var(--mh-white);
    max-width: 800px;
    margin: 0 auto;
}

.mh-search-results-header {
    text-align: center;
    margin-bottom: 50px;
}

.mh-search-results-header h1 {
    font-size: 32px;
    font-weight: 400;
    color: var(--mh-dark);
    margin: 0 0 8px;
    letter-spacing: -0.3px;
}

.mh-search-results-header p {
    color: var(--mh-text-muted);
    font-size: 14px;
    margin: 0 0 30px;
}

.mh-search-results-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mh-search-result-item {
    margin: 0;
    border-bottom: 1px solid var(--mh-border);
}

.mh-search-result-item:first-child {
    border-top: 1px solid var(--mh-border);
}

.mh-search-result-item a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 8px;
    text-decoration: none;
    color: var(--mh-text);
    transition: background-color 0.15s;
}

.mh-search-result-item a:hover {
    background-color: var(--mh-bg-hover);
}

.mh-search-result-info {
    flex: 1;
    min-width: 0;
}

.mh-search-result-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--mh-dark);
    margin: 0 0 4px;
    line-height: 1.4;
}

.mh-search-result-item a:hover .mh-search-result-title {
    color: var(--mh-red);
}

.mh-search-result-excerpt {
    font-size: 13px;
    color: var(--mh-text-muted);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.mh-search-result-category {
    font-size: 12px;
    color: var(--mh-text-muted);
    margin-top: 6px;
}

.mh-search-result-arrow {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: #ccc;
    stroke-width: 2;
}

.mh-search-result-item a:hover .mh-search-result-arrow {
    color: var(--mh-red);
}

.mh-search-no-results {
    text-align: center;
    padding: 60px 20px;
}

.mh-search-no-results-icon {
    width: 64px;
    height: 64px;
    color: #ddd;
    margin: 0 auto 20px;
}

.mh-search-no-results h2 {
    font-size: 20px;
    font-weight: 400;
    color: var(--mh-dark);
    margin: 0 0 10px;
}

.mh-search-no-results p {
    color: var(--mh-text-muted);
    font-size: 14px;
    margin: 0 0 30px;
}

.mh-search-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--mh-dark);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: color 0.15s;
}

.mh-search-back:hover {
    color: var(--mh-red);
}

.mh-search-back svg {
    width: 18px;
    height: 18px;
}

/* ===================== 回應式 - 小手機 (480px) ===================== */
@media (max-width: 480px) {
    .mh-hero h1 { 
        font-size: 22px; 
    }
    
    .mh-categories-grid { 
        gap: 20px 12px; 
    }
    
    .mh-category-card h3 {
        font-size: 13px;
    }
    
    .mh-category-icon svg {
        width: 32px;
        height: 32px;
    }
    
    .mh-view-all {
        font-size: 12px;
    }
}