/* ============================================
   app.css - 商城全局样式
   深蓝 #1A3F6F + 橙色 #E8722A 配色体系
   与信息发布平台统一视觉
   ============================================ */

/* ========== CSS 变量 ========== */
:root {
    --zh-blue: #1A3F6F;
    --zh-blue-light: #4A9FE5;
    --zh-blue-dark: #0F2340;
    --zh-orange: #E8722A;
    --zh-orange-light: #F5A623;
    --zh-green: #5EC26A;
    --zh-red: #E04D3A;
    --zh-bg: #EDF3FA;
    --zh-white: #FFFFFF;
    --zh-text: #2D3748;
    --zh-text-light: #8896A7;
    --zh-border: #E2E8F0;
    --zh-gradient-orange: linear-gradient(135deg, #E8722A 0%, #F5A623 100%);
    --zh-gradient-hero: linear-gradient(135deg, #1A3F6F 0%, #2B7BC8 100%);
    --zh-gradient-footer: linear-gradient(180deg, #0F2340 0%, #1A3F6F 100%);
    --zh-shadow: 0 8px 32px rgba(26,63,111,0.08);
    --zh-shadow-hover: 0 12px 40px rgba(26,63,111,0.15);
    --zh-radius: 12px;
    --zh-radius-lg: 16px;
    --zh-nav-height: 76px;
}

/* ========== 全局重置与基础 ========== */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: var(--zh-bg);
    color: var(--zh-text);
    line-height: 1.6;
    font-size: 16px;
}

a { text-decoration: none; color: inherit; transition: color 0.25s ease; }
a:hover { color: var(--zh-orange); }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; }

.zh_container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========== 导航栏 ========== */
.zh_navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--zh-nav-height);
    transition: background 0.35s ease, box-shadow 0.35s ease;
}

/* 首页透明导航 */
.zh_navbar:not(.zh_navbar_solid):not(.zh_scrolled) {
    background: transparent;
}

.zh_navbar:not(.zh_navbar_solid):not(.zh_scrolled) .zh_nav_link,
.zh_navbar:not(.zh_navbar_solid):not(.zh_scrolled) .zh_nav_phone,
.zh_navbar:not(.zh_navbar_solid):not(.zh_scrolled) .zh_nav_action_link {
    color: rgba(255,255,255,0.9);
}

.zh_navbar:not(.zh_navbar_solid):not(.zh_scrolled) .zh_nav_link:hover,
.zh_navbar:not(.zh_navbar_solid):not(.zh_scrolled) .zh_nav_action_link:hover {
    color: #fff;
}

.zh_navbar:not(.zh_navbar_solid):not(.zh_scrolled) .zh_search_btn {
    color: rgba(255,255,255,0.9);
}

.zh_navbar:not(.zh_navbar_solid):not(.zh_scrolled) .zh_cart_btn {
    color: rgba(255,255,255,0.9);
}

.zh_navbar:not(.zh_navbar_solid):not(.zh_scrolled) .zh_logo_dark { display: none; }
.zh_navbar:not(.zh_navbar_solid):not(.zh_scrolled) .zh_logo_light { display: block; }

/* 滚动后 / 非首页 白底 */
.zh_navbar.zh_scrolled,
.zh_navbar.zh_navbar_solid {
    background: var(--zh-white);
    box-shadow: 0 2px 20px rgba(26,63,111,0.08);
}

.zh_navbar.zh_scrolled .zh_logo_dark,
.zh_navbar.zh_navbar_solid .zh_logo_dark { display: block; }

.zh_navbar.zh_scrolled .zh_logo_light,
.zh_navbar.zh_navbar_solid .zh_logo_light { display: none; }

.zh_nav_inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.zh_logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.zh_logo:hover { opacity: 0.85; }

.zh_logo img {
    height: 52px;
    width: auto;
    display: block;
}

.zh_logo_light {
    display: none;
}

/* 导航菜单 - 居中 */
.zh_nav_menu {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 32px;
}

.zh_nav_link {
    font-size: 15px;
    font-weight: 500;
    color: var(--zh-text);
    padding: 8px 0;
    position: relative;
    transition: color 0.25s ease;
}

.zh_nav_link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: var(--zh-orange);
    border-radius: 2px;
    transition: width 0.3s ease;
}

.zh_nav_link:hover { color: var(--zh-orange); }
.zh_nav_link:hover::after,
.zh_nav_link.active::after { width: 24px; }
.zh_nav_link.active { color: var(--zh-orange); }

/* 右侧操作区 */
.zh_nav_actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.zh_nav_phone {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--zh-text-light);
    white-space: nowrap;
}

.zh_nav_phone i {
    color: var(--zh-orange);
    font-size: 14px;
}

.zh_search_btn,
.zh_cart_btn {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
    color: var(--zh-text);
    background: none;
    border: none;
    border-radius: 50%;
    transition: all 0.25s ease;
    position: relative;
}

.zh_search_btn:hover,
.zh_cart_btn:hover {
    background: rgba(26,63,111,0.06);
    color: var(--zh-orange);
}

.zh_cart_badge {
    position: absolute;
    top: 2px;
    right: 0;
    background: var(--zh-orange);
    color: #fff;
    border-radius: 50%;
    min-width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 700;
    padding: 0 4px;
}

.zh_nav_action_link {
    font-size: 14px;
    color: var(--zh-text);
    display: flex;
    align-items: center;
    gap: 4px;
    transition: color 0.25s ease;
}

.zh_nav_action_link:hover { color: var(--zh-orange); }

.zh_nav_action_sep {
    width: 1px;
    height: 14px;
    background: var(--zh-border);
}

.zh_nav_cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 20px;
    background: var(--zh-gradient-orange);
    color: #fff !important;
    font-size: 14px;
    font-weight: 600;
    border-radius: 20px;
    transition: all 0.25s ease;
    box-shadow: 0 4px 12px rgba(232,114,42,0.3);
}

.zh_nav_cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(232,114,42,0.4);
    color: #fff !important;
}

/* 导航间距占位 */
.zh_nav_spacer {
    height: var(--zh-nav-height);
}

/* 移动端菜单按钮 */
.zh_menu_toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: var(--zh-text);
    background: none;
    border: none;
    border-radius: 8px;
}

.zh_menu_toggle:hover { background: rgba(26,63,111,0.06); }

/* 移动端导航面板 */
.zh_mobile_nav {
    display: none;
    position: fixed;
    top: var(--zh-nav-height);
    left: 0;
    right: 0;
    background: var(--zh-white);
    box-shadow: 0 4px 20px rgba(26,63,111,0.1);
    padding: 16px 0;
    max-height: calc(100vh - var(--zh-nav-height));
    overflow-y: auto;
    z-index: 999;
}

.zh_mobile_nav.show { display: block; }

.zh_mobile_nav a {
    display: block;
    padding: 12px 24px;
    font-size: 15px;
    color: var(--zh-text);
    border-left: 3px solid transparent;
    transition: all 0.2s ease;
}

.zh_mobile_nav a:hover,
.zh_mobile_nav a.active {
    color: var(--zh-orange);
    background: rgba(232,114,42,0.04);
    border-left-color: var(--zh-orange);
}

/* ========== 搜索框叠层 ========== */
.zh_search_overlay {
    display: none;
    position: fixed;
    top: var(--zh-nav-height);
    left: 0;
    right: 0;
    background: var(--zh-white);
    border-bottom: 2px solid var(--zh-orange);
    padding: 16px 0;
    box-shadow: 0 4px 12px rgba(26,63,111,0.1);
    z-index: 998;
}

.zh_search_overlay.show { display: block; }

.zh_search_form {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    gap: 12px;
}

.zh_search_input {
    flex: 1;
    padding: 10px 16px;
    border: 2px solid var(--zh-border);
    border-radius: var(--zh-radius);
    font-size: 15px;
    outline: none;
    transition: border-color 0.25s ease;
}

.zh_search_input:focus { border-color: var(--zh-blue-light); }

.zh_search_submit {
    padding: 10px 24px;
    background: var(--zh-gradient-orange);
    color: #fff;
    border: none;
    border-radius: var(--zh-radius);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
}

.zh_search_submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(232,114,42,0.3);
}

/* ========== 通知消息 ========== */
.zh_alert_wrap {
    position: fixed;
    top: calc(var(--zh-nav-height) + 12px);
    left: 50%;
    transform: translateX(-50%);
    z-index: 9998;
    width: 100%;
    max-width: 600px;
    padding: 0 20px;
}

.zh_alert {
    padding: 14px 20px;
    border-radius: var(--zh-radius);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 14px;
    gap: 12px;
    box-shadow: 0 4px 20px rgba(26,63,111,0.12);
    animation: zh_alert_in 0.3s ease;
}

@keyframes zh_alert_in {
    from { opacity: 0; transform: translateY(-12px); }
    to { opacity: 1; transform: translateY(0); }
}

.zh_alert_success {
    background: #f0fdf4;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.zh_alert_success i { color: var(--zh-green); }

.zh_alert_error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.zh_alert_error i { color: var(--zh-red); }

.zh_alert_close {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: inherit;
    opacity: 0.5;
    padding: 0;
    flex-shrink: 0;
}

.zh_alert_close:hover { opacity: 1; }

/* ========== 页脚 ========== */
.zh_footer {
    background: var(--zh-gradient-footer);
    color: #ffffff;
    margin-top: 0;
    position: relative;
    overflow: hidden;
}

/* 装饰圆 */
.zh_footer::before,
.zh_footer::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

.zh_footer::before {
    width: 300px; height: 300px;
    background: radial-gradient(circle, rgba(74,159,229,0.08) 0%, transparent 70%);
    top: -100px; right: -80px;
}

.zh_footer::after {
    width: 200px; height: 200px;
    background: radial-gradient(circle, rgba(232,114,42,0.06) 0%, transparent 70%);
    bottom: -60px; left: -40px;
}

.zh_footer_main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 64px 20px 48px;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 48px;
    position: relative;
    z-index: 1;
}

.zh_footer_logo {
    margin-bottom: 20px;
}

.zh_footer_logo img {
    height: 48px;
    width: auto;
    display: block;
    filter: brightness(0) invert(1);
}

.zh_footer_desc {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255,255,255,0.6);
    margin-bottom: 24px;
}

.zh_footer_social {
    display: flex;
    gap: 12px;
}

.zh_footer_social a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.6);
    font-size: 16px;
    transition: all 0.25s ease;
}

.zh_footer_social a:hover {
    background: var(--zh-orange);
    border-color: var(--zh-orange);
    color: #ffffff;
}

.zh_footer_title {
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 24px;
    position: relative;
    padding-bottom: 12px;
}

.zh_footer_title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 24px;
    height: 2px;
    background: var(--zh-orange);
    border-radius: 1px;
}

.zh_footer_links {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.zh_footer_links a {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    transition: all 0.25s ease;
}

.zh_footer_links a:hover {
    color: var(--zh-orange);
    padding-left: 4px;
}

.zh_footer_bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    position: relative;
    z-index: 1;
}

.zh_footer_bottom_inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.zh_footer_copyright {
    font-size: 13px;
    color: rgba(255,255,255,0.4);
}

.zh_footer_legal {
    display: flex;
    gap: 24px;
}

.zh_footer_legal a {
    font-size: 13px;
    color: rgba(255,255,255,0.4);
}

.zh_footer_legal a:hover { color: rgba(255,255,255,0.8); }

/* ========== 通用按钮 ========== */
.zh_btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    font-size: 14px;
    font-weight: 600;
    border: none;
    border-radius: var(--zh-radius);
    cursor: pointer;
    transition: all 0.25s ease;
}

.zh_btn_orange {
    background: var(--zh-gradient-orange);
    color: #fff;
    box-shadow: 0 4px 12px rgba(232,114,42,0.3);
}

.zh_btn_orange:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(232,114,42,0.4);
    color: #fff;
}

.zh_btn_blue {
    background: var(--zh-blue);
    color: #fff;
}

.zh_btn_blue:hover {
    background: var(--zh-blue-dark);
    color: #fff;
}

.zh_btn_ghost {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255,255,255,0.5);
}

.zh_btn_ghost:hover {
    background: rgba(255,255,255,0.15);
    border-color: #fff;
    color: #fff;
}

.zh_btn_outline {
    background: transparent;
    color: var(--zh-blue);
    border: 2px solid var(--zh-blue);
}

.zh_btn_outline:hover {
    background: var(--zh-blue);
    color: #fff;
}

/* ========== 商品卡片（全局通用） ========== */
.zh_pcard {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: #fff;
    border-radius: var(--zh-radius);
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid var(--zh-border);
}

.zh_pcard:hover {
    border-color: rgba(26,63,111,0.15);
    box-shadow: var(--zh-shadow-hover);
    transform: translateY(-6px);
}

.zh_pcard_img_wrap {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    background: #fafafa;
    padding: 10px;
}

.zh_pcard_img {
    display: block;
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    transition: transform 0.4s ease;
}

.zh_pcard:hover .zh_pcard_img { transform: scale(1.05); }

.zh_pcard_tag {
    position: absolute;
    top: 10px;
    left: 10px;
    padding: 3px 10px;
    font-size: 11px;
    font-weight: 700;
    border-radius: 12px;
    color: #fff;
    z-index: 1;
}

.zh_pcard_tag_new { background: var(--zh-blue-light); }
.zh_pcard_tag_hot { background: var(--zh-orange); }
.zh_pcard_tag_sale { background: var(--zh-red); }

.zh_pcard_body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 14px;
    border-top: 1px solid #f5f5f5;
}

.zh_pcard_cat {
    font-size: 12px;
    color: var(--zh-text-light);
    margin-bottom: 4px;
}

.zh_pcard_name {
    font-size: 14px;
    font-weight: 500;
    color: var(--zh-text);
    line-height: 1.5;
    height: 42px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 0;
}

.zh_pcard_name a { color: inherit; text-decoration: none; }
.zh_pcard_name a:hover { color: var(--zh-orange); }

.zh_pcard_bottom {
    margin-top: auto;
    padding-top: 10px;
}

.zh_pcard_price {
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.zh_pcard_cur {
    font-size: 18px;
    font-weight: 700;
    color: var(--zh-red);
}

.zh_pcard_old {
    font-size: 12px;
    color: #bbb;
    text-decoration: line-through;
}

.zh_pcard_sales {
    font-size: 12px;
    color: var(--zh-text-light);
    margin-top: 4px;
}

.zh_pcard_sales i { color: var(--zh-orange); margin-right: 3px; }

/* ========== 商品网格 ========== */
.zh_product_grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.zh_product_grid_item {
    display: flex;
}

.zh_product_grid_item > .zh_pcard {
    width: 100%;
}

/* ========== 区块标题 ========== */
.zh_section_title {
    font-size: 28px;
    font-weight: 700;
    color: var(--zh-blue);
    text-align: center;
    margin-bottom: 8px;
}

.zh_section_subtitle {
    font-size: 15px;
    color: var(--zh-text-light);
    text-align: center;
    margin-bottom: 40px;
}

.zh_section_title_bar {
    display: inline-block;
    width: 40px;
    height: 3px;
    background: var(--zh-gradient-orange);
    border-radius: 2px;
    margin: 8px auto 0;
}

/* ========== 投诉建议弹窗 ========== */
.zh_fb_overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.zh_fb_overlay.show { display: flex; }

.zh_fb_modal {
    background: #fff;
    border-radius: var(--zh-radius-lg);
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
    animation: zh_fb_in 0.25s ease;
}

@keyframes zh_fb_in {
    from { opacity: 0; transform: translateY(-20px) scale(0.96); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.zh_fb_header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid #f0f0f0;
}

.zh_fb_title {
    font-size: 18px;
    font-weight: 600;
    color: var(--zh-text);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.zh_fb_title i { color: var(--zh-blue); }

.zh_fb_close {
    background: none;
    border: none;
    font-size: 24px;
    color: #999;
    cursor: pointer;
    line-height: 1;
    padding: 0 4px;
}

.zh_fb_close:hover { color: #333; }

.zh_fb_body { padding: 24px; }

.zh_fb_contact {
    display: flex;
    gap: 24px;
    padding: 14px 18px;
    background: var(--zh-bg);
    border-radius: 8px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.zh_fb_contact_item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--zh-text);
}

.zh_fb_contact_item i { color: var(--zh-blue); font-size: 15px; }

.zh_fb_row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-bottom: 14px;
}

.zh_fb_field { margin-bottom: 0; }
.zh_fb_field:only-child { margin-bottom: 14px; }

.zh_fb_label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: #333;
    margin-bottom: 6px;
}

.zh_fb_input {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--zh-border);
    border-radius: 8px;
    font-size: 14px;
    color: #333;
    transition: border-color 0.2s;
    outline: none;
    background: #fff;
}

.zh_fb_input:focus { border-color: var(--zh-blue-light); }

.zh_fb_textarea { resize: vertical; min-height: 80px; }

.zh_fb_captcha {
    display: flex;
    gap: 10px;
    align-items: center;
}

.zh_fb_captcha .zh_fb_input { flex: 1; }

.zh_fb_captcha_img {
    height: 38px;
    border-radius: 4px;
    cursor: pointer;
    flex-shrink: 0;
}

.zh_fb_msg {
    font-size: 13px;
    margin-bottom: 14px;
    display: none;
    padding: 8px 12px;
    border-radius: 6px;
}

.zh_fb_msg.success { display: block; background: #f0fdf4; color: #166534; }
.zh_fb_msg.error { display: block; background: #fef2f2; color: #991b1b; }

.zh_fb_submit {
    width: 100%;
    padding: 11px;
    background: var(--zh-gradient-orange);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: all 0.25s ease;
}

.zh_fb_submit:hover {
    box-shadow: 0 4px 12px rgba(232,114,42,0.3);
}

.zh_fb_submit:disabled { opacity: 0.6; cursor: not-allowed; }

/* ========== 回到顶部 ========== */
.zh_scroll_top {
    display: none;
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 9999;
    width: 44px;
    height: 44px;
    background: var(--zh-blue);
    color: #fff;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(26,63,111,0.3);
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: all 0.3s ease;
}

.zh_scroll_top:hover {
    background: var(--zh-orange);
    transform: translateY(-2px);
}

/* ========== 面包屑 ========== */
.zh_breadcrumb_bar {
    background: var(--zh-white);
    border-bottom: 1px solid var(--zh-border);
    padding: 14px 0;
}

.zh_breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--zh-text-light);
    list-style: none;
    flex-wrap: wrap;
}

.zh_breadcrumb a { color: var(--zh-text-light); }
.zh_breadcrumb a:hover { color: var(--zh-orange); }
.zh_breadcrumb .active { color: var(--zh-text); }

/* ========== 响应式 ========== */
@media (max-width: 1100px) {
    .zh_nav_menu { gap: 20px; }
    .zh_nav_link { font-size: 14px; }
    .zh_nav_phone { display: none; }
}

@media (max-width: 991px) {
    .zh_nav_menu { display: none; }
    .zh_menu_toggle { display: flex; }
    .zh_footer_main { grid-template-columns: 1fr 1fr; gap: 36px; }
    .zh_product_grid { grid-template-columns: repeat(3, 1fr); gap: 14px; }
}

@media (max-width: 767px) {
    :root { --zh-nav-height: 64px; }

    .zh_logo img { height: 40px; }
    .zh_nav_actions { gap: 8px; }
    .zh_nav_cta { padding: 6px 14px; font-size: 13px; }

    .zh_footer_main {
        grid-template-columns: 1fr;
        gap: 32px;
        padding: 48px 20px 36px;
    }

    .zh_footer_bottom_inner {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .zh_footer_legal { flex-direction: column; gap: 8px; }

    .zh_product_grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .zh_pcard_body { padding: 10px; }
    .zh_pcard_name { font-size: 13px; height: 39px; }
    .zh_pcard_cur { font-size: 16px; }
    .zh_pcard_img_wrap { padding: 8px; }

    .zh_section_title { font-size: 22px; }

    .zh_fb_modal { max-width: 100%; }
    .zh_fb_row { grid-template-columns: 1fr; }
    .zh_fb_contact { flex-direction: column; gap: 10px; }
}

@media (max-width: 480px) {
    .zh_nav_cta { display: none; }
}