/* ==========================================================================
   JetKeen Life Science - Frontend Styles
   ========================================================================== */

:root {
    --color-primary: #0a6b5c;
    --color-primary-dark: #075949;
    --color-accent: #22c55e;
    --color-secondary: #0ea5e9;
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-text-muted: #9ca3af;
    --color-bg: #ffffff;
    --color-bg-alt: #f9fafb;
    --color-bg-dark: #111827;
    --color-border: #e5e7eb;
    --color-border-light: #f3f4f6;
    --shadow-sm: 0 1px 2px 0 rgba(0,0,0,.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -1px rgba(0,0,0,.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -2px rgba(0,0,0,.05);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --max-width: 1280px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a { color: var(--color-primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--color-primary-dark); }

img { max-width: 100%; height: auto; display: block; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }

/* ==========================================================================
   Top Bar & Header
   ========================================================================== */
.site-header { background: #fff; border-bottom: 1px solid var(--color-border); position: sticky; top: 0; z-index: 100; }

.top-bar {
    background: #f3f4f6;
    border-bottom: 1px solid var(--color-border-light);
    font-size: 12px;
    padding: 6px 0;
}
.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}
.top-bar-left, .top-bar-right { display: flex; align-items: center; gap: 20px; }
.top-contact { color: var(--color-text-light); }

.lang-switcher { position: relative; }
.lang-current {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 12px;
}
.lang-current:hover { background: var(--color-bg-alt); }
.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 4px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    min-width: 150px;
    display: none;
    z-index: 50;
}
.lang-dropdown.show { display: block; }
.lang-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    font-size: 13px;
    color: var(--color-text);
}
.lang-option:hover { background: var(--color-bg-alt); }
.lang-option.active { background: var(--color-bg-alt); color: var(--color-primary); font-weight: 600; }

.user-area { display: flex; align-items: center; gap: 10px; font-size: 12px; }
.user-area a { color: var(--color-primary); }

.main-header {
    padding: 18px 0;
}
.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text);
}
.logo-mark {
    width: 40px; height: 40px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 16px;
    font-weight: 800;
    letter-spacing: -.5px;
}

.search-form {
    flex: 1;
    max-width: 500px;
    display: flex;
    gap: 8px;
}
.search-input {
    flex: 1;
    padding: 10px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 14px;
    outline: none;
    transition: border-color .2s, box-shadow .2s;
}
.search-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(10, 107, 92, .1);
}
.search-btn {
    padding: 10px 20px;
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background .2s;
}
.search-btn:hover { background: var(--color-primary-dark); }

.main-nav {
    background: #fff;
    border-top: 1px solid var(--color-border-light);
}
.nav-list {
    list-style: none;
    display: flex;
    gap: 4px;
}
.nav-item a {
    display: block;
    padding: 14px 18px;
    color: var(--color-text);
    font-weight: 500;
    font-size: 14px;
    border-bottom: 2px solid transparent;
    transition: all .2s;
}
.nav-item a:hover { color: var(--color-primary); }
.nav-item.active a {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
    background: linear-gradient(135deg, #064e3b 0%, #0a6b5c 50%, #10b981 100%);
    color: #fff;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}
.hero-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60'%3E%3Cpath fill='none' stroke='%23ffffff' stroke-opacity='.06' stroke-width='1' d='M0 30h60M30 0v60'/%3E%3C/svg%3E");
    opacity: .5;
}
.hero-content { position: relative; z-index: 1; max-width: 800px; }
.hero-title {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 16px;
    letter-spacing: -1px;
}
.hero-subtitle {
    font-size: 18px;
    line-height: 1.6;
    opacity: .9;
    margin-bottom: 32px;
    max-width: 600px;
}
.hero-buttons { display: flex; gap: 12px; margin-bottom: 48px; flex-wrap: wrap; }
.hero-stats {
    display: flex;
    gap: 48px;
    flex-wrap: wrap;
}
.stat-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.stat-value { font-size: 32px; font-weight: 800; }
.stat-label { font-size: 13px; opacity: .8; }

/* ==========================================================================
   Page Hero (Inner pages)
   ========================================================================== */
.page-hero {
    background: linear-gradient(135deg, #064e3b 0%, #0a6b5c 100%);
    color: #fff;
    padding: 50px 0;
    position: relative;
}
.page-hero-sm { padding: 32px 0; }
.page-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -.5px;
}
.breadcrumb {
    font-size: 13px;
    opacity: .85;
    display: flex;
    align-items: center;
    gap: 8px;
}
.breadcrumb a { color: #fff; }
.breadcrumb a:hover { opacity: .8; }
.breadcrumb-sep { opacity: .6; }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all .2s;
    text-align: center;
    line-height: 1.2;
    white-space: nowrap;
}
.btn-primary { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.btn-primary:hover { background: var(--color-primary-dark); border-color: var(--color-primary-dark); color: #fff; }
.btn-outline { background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: #fff; }
.btn-lg { padding: 14px 28px; font-size: 15px; }
.btn-sm { padding: 6px 12px; font-size: 12px; border-radius: var(--radius-sm); }
.btn-danger { background: #dc2626; color: #fff; border-color: #dc2626; }
.btn-danger:hover { background: #b91c1c; border-color: #b91c1c; color: #fff; }
.hero-section .btn-outline { color: #fff; border-color: #fff; background: transparent; }
.hero-section .btn-outline:hover { background: #fff; color: var(--color-primary); }
.hero-section .btn-primary { background: #fff; color: var(--color-primary); border-color: #fff; }
.hero-section .btn-primary:hover { background: #f3f4f6; color: var(--color-primary-dark); }

/* ==========================================================================
   Sections
   ========================================================================== */
.section { padding: 60px 0; }
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
    gap: 20px;
    flex-wrap: wrap;
}
.section-title {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -.5px;
}
.section-subtitle {
    color: var(--color-text-light);
    font-size: 15px;
    margin-top: 4px;
}
.section-link {
    font-weight: 600;
    color: var(--color-primary);
    font-size: 14px;
}

/* ==========================================================================
   Category Grid
   ========================================================================== */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}
.category-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 24px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all .2s;
}
.category-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.category-icon {
    width: 48px;
    height: 48px;
    background: #ecfdf5;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}
.category-name { font-size: 16px; font-weight: 700; color: var(--color-text); }
.category-count { font-size: 13px; color: var(--color-text-light); }
.category-arrow { font-weight: 700; color: var(--color-primary); margin-top: auto; }

.category-grid-lg { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.category-card-lg {
    padding: 32px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all .2s;
}
.category-card-lg:hover { border-color: var(--color-primary); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.category-card-lg-icon {
    width: 60px; height: 60px;
    background: linear-gradient(135deg, #ecfdf5, #d1fae5);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 16px;
}
.category-card-lg-name { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.category-card-lg-desc { font-size: 14px; color: var(--color-text-light); margin-bottom: 16px; min-height: 42px; }
.category-card-lg-meta {
    font-size: 13px;
    color: var(--color-text-muted);
    padding-top: 16px;
    border-top: 1px solid var(--color-border-light);
}
.sub-cats-inline { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 8px; }
.sub-cat-chip {
    font-size: 12px;
    padding: 6px 12px;
    background: var(--color-bg-alt);
    border-radius: 999px;
    color: var(--color-text-light);
}
.sub-cat-chip:hover { background: var(--color-primary); color: #fff; }

/* ==========================================================================
   Product Grid / Card
   ========================================================================== */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 20px;
}
.product-card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all .2s;
    position: relative;
    display: flex;
    flex-direction: column;
}
.product-card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-md); transform: translateY(-2px); }

.product-badges {
    position: absolute;
    top: 12px;
    left: 12px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    z-index: 2;
}
.badge {
    display: inline-block;
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 700;
    border-radius: 999px;
    letter-spacing: .3px;
}
.badge-new { background: var(--color-accent); color: #fff; }
.badge-featured { background: var(--color-secondary); color: #fff; }

.product-image-link { display: block; }
.product-image {
    width: 100%;
    aspect-ratio: 4 / 3;
    background: linear-gradient(135deg, #f3f4f6, #e5e7eb);
    background-size: cover;
    background-position: center;
}
.product-info {
    padding: 18px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.product-sku {
    font-size: 11px;
    color: var(--color-text-muted);
    letter-spacing: .5px;
    text-transform: uppercase;
}
.product-title {
    font-size: 15px;
    font-weight: 700;
    margin-top: 4px;
    margin-bottom: 6px;
    line-height: 1.3;
}
.product-title a { color: var(--color-text); }
.product-title a:hover { color: var(--color-primary); }
.product-desc {
    font-size: 13px;
    color: var(--color-text-light);
    margin-bottom: 14px;
    flex: 1;
}
.product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 14px;
    border-top: 1px solid var(--color-border-light);
}
.product-price { font-size: 17px; font-weight: 800; color: var(--color-primary); }
.price-negotiable { font-size: 13px; color: var(--color-text-light); font-weight: 500; }
.product-link { font-size: 13px; font-weight: 600; }

/* ==========================================================================
   List toolbar & pagination
   ========================================================================== */
.list-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--color-border-light);
    margin-bottom: 24px;
    flex-wrap: wrap;
}
.list-info { font-size: 14px; color: var(--color-text-light); }
.list-sort { display: flex; align-items: center; gap: 8px; font-size: 13px; }
.sort-select {
    padding: 6px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    background: #fff;
    cursor: pointer;
}

.pagination-wrap { display: flex; justify-content: center; margin: 32px 0 0; }
.pagination {
    list-style: none;
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    justify-content: center;
}
.page-item .page-link {
    display: block;
    padding: 8px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--color-text);
    transition: all .2s;
}
.page-item .page-link:hover { background: var(--color-bg-alt); border-color: var(--color-primary); color: var(--color-primary); }
.page-item.active .page-link { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }

.empty-state {
    padding: 60px 20px;
    text-align: center;
    color: var(--color-text-light);
}
.empty-state-lg { padding: 80px 20px; }
.empty-icon { font-size: 64px; margin-bottom: 16px; opacity: .4; }

/* ==========================================================================
   Sidebar
   ========================================================================== */
.layout-with-sidebar {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 32px;
    align-items: start;
}
.sidebar { position: sticky; top: 100px; }
.sidebar-widget {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-bottom: 16px;
}
.widget-title { font-size: 14px; font-weight: 700; margin-bottom: 12px; color: var(--color-text); }
.category-sidebar-list { list-style: none; }
.category-sidebar-list > li { margin-bottom: 4px; }
.category-sidebar-list > li > a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-size: 13px;
    transition: all .15s;
}
.category-sidebar-list > li > a:hover { background: var(--color-bg-alt); color: var(--color-primary); }
.category-sidebar-list > li.active > a { background: #ecfdf5; color: var(--color-primary); font-weight: 600; }
.category-sidebar-list .count { font-size: 11px; color: var(--color-text-muted); }
.sub-category-list {
    list-style: none;
    margin-left: 12px;
    padding-left: 12px;
    border-left: 2px solid var(--color-border-light);
    margin-top: 4px;
}
.sub-category-list li { margin-bottom: 2px; }
.sub-category-list a {
    display: block;
    padding: 4px 8px;
    font-size: 12px;
    color: var(--color-text-light);
    border-radius: var(--radius-sm);
}
.sub-category-list a:hover { background: var(--color-bg-alt); color: var(--color-primary); }
.sub-category-list li.active a { color: var(--color-primary); font-weight: 600; }
.sidebar-product-list { list-style: none; }
.sidebar-product-list li { margin-bottom: 6px; }
.sidebar-product-list a {
    display: block;
    padding: 6px 8px;
    font-size: 13px;
    color: var(--color-text-light);
    border-radius: var(--radius-sm);
}
.sidebar-product-list a:hover { background: var(--color-bg-alt); color: var(--color-primary); }

/* ==========================================================================
   Product detail
   ========================================================================== */
.detail-layout {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 40px;
    margin-bottom: 48px;
}
.detail-images .main-image {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 4 / 3;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}
.detail-images .main-image img { width: 100%; height: 100%; object-fit: cover; }
.detail-images .image-placeholder {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
}
.product-badges-big {
    display: flex;
    gap: 8px;
    margin-top: 16px;
}
.badge-stock.in { background: var(--color-accent); color: #fff; }
.badge-stock.out { background: #9ca3af; color: #fff; }

.detail-sku { font-size: 12px; color: var(--color-text-muted); letter-spacing: .5px; text-transform: uppercase; }
.detail-title { font-size: 28px; font-weight: 800; margin: 8px 0 16px; line-height: 1.2; }
.detail-model { font-size: 15px; color: var(--color-text-light); margin-bottom: 12px; }
.detail-short-desc { font-size: 15px; color: var(--color-text); margin-bottom: 20px; line-height: 1.7; }
.detail-price-block { padding: 20px; background: var(--color-bg-alt); border-radius: var(--radius-md); margin-bottom: 24px; }
.detail-price { font-size: 32px; font-weight: 800; color: var(--color-primary); }
.price-negotiable-lg { font-size: 18px; color: var(--color-text-light); font-weight: 600; }

.detail-specs-short { margin-bottom: 24px; }
.spec-row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 8px 0;
    border-bottom: 1px solid var(--color-border-light);
    font-size: 14px;
}
.spec-key { color: var(--color-text-light); font-weight: 500; }
.spec-value { color: var(--color-text); font-weight: 600; text-align: right; }

.detail-actions { display: flex; gap: 12px; margin-bottom: 24px; flex-wrap: wrap; }

.detail-meta {
    padding: 16px 20px;
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 13px;
}

.detail-tabs {
    border-top: 1px solid var(--color-border-light);
    padding-top: 48px;
}
.tab-content { margin-bottom: 40px; }
.tab-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-primary);
    display: inline-block;
}
.tab-body { font-size: 15px; line-height: 1.8; color: var(--color-text); }
.tab-body p { margin-bottom: 12px; }

.spec-table { width: 100%; border-collapse: collapse; }
.spec-table tr { border-bottom: 1px solid var(--color-border-light); }
.spec-table tr:last-child { border-bottom: none; }
.spec-table td { padding: 12px 0; font-size: 14px; }
.spec-table .spec-table-key {
    color: var(--color-text-light);
    font-weight: 600;
    width: 40%;
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: .5px;
}

.feature-list { list-style: none; padding: 0; }
.feature-list li {
    padding: 8px 0 8px 24px;
    position: relative;
    font-size: 15px;
}
.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 8px;
    color: var(--color-accent);
    font-weight: 700;
    font-size: 14px;
}

.related-section { margin-top: 60px; }

/* ==========================================================================
   About
   ========================================================================== */
.about-layout {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 48px;
    align-items: start;
}
.about-content .section-title { font-size: 26px; margin-bottom: 16px; }
.about-text {
    font-size: 15px;
    color: var(--color-text);
    line-height: 1.9;
    margin-bottom: 16px;
}
.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    position: sticky;
    top: 100px;
}
.about-stat-box {
    padding: 24px;
    background: linear-gradient(135deg, #ecfdf5, #d1fae5);
    border-radius: var(--radius-md);
    text-align: center;
}
.about-stat-value { font-size: 28px; font-weight: 800; color: var(--color-primary); }
.about-stat-label { font-size: 13px; color: var(--color-text-light); margin-top: 4px; }

.section-values { background: var(--color-bg-alt); }
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}
.value-card {
    background: #fff;
    padding: 32px;
    border-radius: var(--radius-md);
    text-align: center;
    border: 1px solid var(--color-border-light);
    transition: all .2s;
}
.value-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--color-primary); }
.value-icon { font-size: 40px; margin-bottom: 16px; }
.value-title { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.value-text { font-size: 14px; color: var(--color-text-light); }

.section-contact-cta {
    background: linear-gradient(135deg, #064e3b, #0a6b5c);
    color: #fff;
    text-align: center;
}
.section-contact-cta h2 { font-size: 32px; font-weight: 800; margin-bottom: 8px; }
.section-contact-cta p { opacity: .9; margin-bottom: 24px; font-size: 16px; }
.section-contact-cta .btn-primary {
    background: #fff;
    color: var(--color-primary);
    border-color: #fff;
}
.section-contact-cta .btn-primary:hover {
    background: #f3f4f6;
    color: var(--color-primary-dark);
}

/* ==========================================================================
   Contact
   ========================================================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 32px;
}
.contact-info-col .section-title-sm, .contact-form-col .section-title-sm {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
}
.contact-info-item {
    padding: 20px;
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
}
.contact-info-icon {
    width: 40px; height: 40px;
    background: #fff;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    margin-bottom: 12px;
}
.contact-info-content h4 { font-size: 14px; font-weight: 700; margin-bottom: 4px; }
.contact-info-content p { font-size: 14px; color: var(--color-text-light); }

.contact-form {
    background: #fff;
    padding: 32px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--color-text);
}
.form-input, .form-textarea, .form-select {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    background: #fff;
    transition: border-color .2s, box-shadow .2s;
}
.form-input:focus, .form-textarea:focus, .form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(10, 107, 92, .1);
}
.form-textarea { resize: vertical; min-height: 100px; }

.form-success {
    padding: 14px 18px;
    background: #d1fae5;
    border: 1px solid #6ee7b7;
    color: #065f46;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    font-weight: 500;
}

/* ==========================================================================
   News
   ========================================================================== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}
.news-grid-lg { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; }
.news-card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px;
    transition: all .2s;
}
.news-card:hover { border-color: var(--color-primary); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.news-date { font-size: 12px; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: .5px; font-weight: 600; margin-bottom: 8px; }
.news-title { font-size: 18px; font-weight: 700; margin-bottom: 8px; line-height: 1.35; }
.news-title a { color: var(--color-text); }
.news-title a:hover { color: var(--color-primary); }
.news-summary { font-size: 14px; color: var(--color-text-light); line-height: 1.6; margin-bottom: 14px; }
.news-link { font-size: 13px; font-weight: 600; color: var(--color-primary); }

.news-article { max-width: 820px; margin: 0 auto; }
.news-article-meta {
    padding: 16px 0;
    border-bottom: 1px solid var(--color-border-light);
    margin-bottom: 32px;
    font-size: 14px;
    color: var(--color-text-light);
}
.news-article-summary {
    padding: 20px 24px;
    background: var(--color-bg-alt);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-md);
    margin-bottom: 32px;
    font-size: 16px;
    color: var(--color-text);
    line-height: 1.7;
}
.news-article-content { font-size: 16px; line-height: 1.9; color: var(--color-text); }
.news-article-content p { margin-bottom: 18px; }
.news-article-content h2, .news-article-content h3 { margin: 28px 0 14px; font-weight: 700; }
.news-article-footer { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--color-border-light); }

/* ==========================================================================
   Search
   ========================================================================== */
.search-form-lg {
    display: flex;
    gap: 10px;
    max-width: 800px;
    margin: 0 auto 24px;
}
.search-form-lg .search-input {
    flex: 1;
    padding: 14px 20px;
    font-size: 15px;
}
.search-form-lg .search-btn { padding: 14px 28px; font-size: 15px; }
.search-summary {
    text-align: center;
    margin-bottom: 32px;
    color: var(--color-text-light);
    font-size: 14px;
}
.search-summary strong { color: var(--color-text); font-weight: 600; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
    background: #0f172a;
    color: #cbd5e1;
    margin-top: 60px;
}
.footer-main { padding: 60px 0 32px; }
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: 40px;
}
.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    color: #fff;
    font-size: 18px;
    font-weight: 700;
}
.footer-logo .logo-mark { width: 36px; height: 36px; font-size: 14px; }
.footer-desc { font-size: 13px; line-height: 1.7; margin-bottom: 20px; opacity: .85; }
.contact-list { list-style: none; }
.contact-list li {
    padding: 6px 0;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.ci-icon { font-size: 14px; }

.footer-title {
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: .5px;
}
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 8px; }
.footer-links a {
    color: #cbd5e1;
    font-size: 13px;
    transition: color .2s;
}
.footer-links a:hover { color: var(--color-accent); }

.news-hint { font-size: 13px; opacity: .8; margin-bottom: 16px; }
.newsletter-form {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
}
.newsletter-input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid #334155;
    background: #1e293b;
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: #fff;
}
.newsletter-input::placeholder { color: #64748b; }
.newsletter-input:focus { outline: none; border-color: var(--color-accent); }
.newsletter-btn {
    padding: 10px 16px;
    background: var(--color-accent);
    border: none;
    border-radius: var(--radius-sm);
    color: #fff;
    font-weight: 600;
    font-size: 13px;
    cursor: pointer;
}
.newsletter-btn:hover { background: #16a34a; }

.footer-social {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    flex-wrap: wrap;
}
.footer-social .social-link {
    padding: 6px 12px;
    background: #1e293b;
    border: 1px solid #334155;
    border-radius: var(--radius-sm);
    color: #cbd5e1;
    font-size: 12px;
    transition: all .2s;
}
.footer-social .social-link:hover { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }

.footer-bottom {
    border-top: 1px solid #1e293b;
    padding: 20px 0;
    font-size: 13px;
}
.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}
.copyright { color: #94a3b8; }
.footer-extra { color: #64748b; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.footer-extra a { color: #64748b; font-size: 13px; }
.footer-extra a:hover { color: #cbd5e1; }
.version-tag { font-size: 12px; color: #475569; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1024px) {
    .layout-with-sidebar { grid-template-columns: 1fr; }
    .sidebar { position: static; }
    .detail-layout { grid-template-columns: 1fr; }
    .about-layout { grid-template-columns: 1fr; }
    .about-stats { position: static; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .hero-section { padding: 50px 0; }
    .hero-title { font-size: 32px; }
    .hero-subtitle { font-size: 15px; }
    .hero-stats { gap: 24px; }
    .stat-value { font-size: 24px; }
    .page-title { font-size: 24px; }
    .section { padding: 40px 0; }
    .section-title { font-size: 22px; }
    .top-bar-content { flex-direction: column; align-items: flex-start; gap: 8px; }
    .header-content { flex-direction: column; gap: 16px; }
    .search-form { width: 100%; max-width: 100%; }
    .nav-list { flex-wrap: wrap; gap: 0; }
    .nav-item a { padding: 10px 12px; font-size: 13px; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom-content { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
    .container { padding: 0 14px; }
    .hero-title { font-size: 26px; }
    .product-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .product-info { padding: 12px; }
    .product-title { font-size: 13px; }
    .product-price { font-size: 14px; }
    .category-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .category-card { padding: 16px; }
    .btn-lg { padding: 12px 20px; font-size: 13px; }
    .detail-title { font-size: 22px; }
    .detail-price { font-size: 24px; }
}