/* ============================================
   HISCISSORS.COM - Main Stylesheet
   B2B Professional Scissors Manufacturer
   Responsive: PC / Tablet / Mobile
   ============================================ */

/* --- CSS Variables --- */
:root {
    --primary: #C41E3A;
    --primary-dark: #9B1830;
    --primary-light: #E85D75;
    --secondary: #1A1A2E;
    --secondary-light: #2D2D44;
    --accent: #D4AF37;
    --text: #2C2C2C;
    --text-light: #6B6B6B;
    --text-muted: #999;
    --bg: #FFFFFF;
    --bg-light: #F8F9FA;
    --bg-warm: #FFF9F0;
    --border: #E5E7EB;
    --border-light: #F0F0F0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --transition: 0.3s ease;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --container: 1200px;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: var(--font);
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; transition: color var(--transition); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
h1,h2,h3,h4,h5,h6 { line-height: 1.3; font-weight: 700; }
h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.125rem; }

.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 20px;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition);
    text-align: center;
    justify-content: center;
}
.btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}
.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(196,30,58,0.3);
}
.btn-outline {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}
.btn-outline:hover {
    background: var(--primary);
    color: #fff;
}
.btn-white {
    background: #fff;
    color: var(--secondary);
    border-color: #fff;
}
.btn-white:hover {
    background: transparent;
    color: #fff;
    border-color: #fff;
}
.btn-sm { padding: 8px 20px; font-size: 0.85rem; }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.btn-block { display: flex; width: 100%; }

/* --- Top Bar --- */
.top-bar {
    background: var(--secondary);
    color: rgba(255,255,255,0.8);
    font-size: 0.8rem;
    padding: 6px 0;
}
.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.top-bar-left, .top-bar-right {
    display: flex;
    gap: 20px;
    align-items: center;
}
.top-bar span {
    display: flex;
    align-items: center;
    gap: 6px;
}
.top-bar svg { opacity: 0.7; }

/* --- Main Header --- */
.main-header {
    background: #fff;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: box-shadow var(--transition);
}
.main-header.scrolled {
    box-shadow: var(--shadow-md);
}
.main-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

/* Logo */
.logo { display: flex; flex-direction: column; }
.logo-text {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--secondary);
    letter-spacing: -0.5px;
}
.logo-accent { color: var(--primary); }
.logo-tagline {
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-top: -2px;
}

/* Navigation */
.nav-list {
    display: flex;
    gap: 4px;
}
.nav-list > li > a {
    display: block;
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}
.nav-list > li > a:hover,
.nav-list > li.active > a {
    color: var(--primary);
    background: rgba(196,30,58,0.05);
}

/* Mega Menu */
.has-dropdown { position: relative; }
.mega-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    width: 700px;
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 28px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    pointer-events: none;
    z-index: 1001;
    border: 1px solid var(--border-light);
}
.has-dropdown:hover .mega-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}
.mega-menu-inner {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: 24px;
}
.mega-menu h4 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-light);
}
.mega-menu ul li a {
    display: block;
    padding: 5px 0;
    font-size: 0.85rem;
    color: var(--text);
}
.mega-menu ul li a:hover {
    color: var(--primary);
    padding-left: 4px;
}
.mega-menu-featured {
    background: var(--bg-light);
    border-radius: var(--radius-md);
    padding: 16px;
    margin: -8px -8px -8px 0;
}
.mega-menu-product-title {
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 4px;
}
.mega-menu-product-desc {
    font-size: 0.8rem;
    color: var(--text-light);
    margin-bottom: 12px;
}
.mega-menu-link {
    font-size: 0.85rem;
    color: var(--primary);
    font-weight: 600;
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--secondary);
    border-radius: 2px;
    transition: var(--transition);
}

/* Mobile Nav Overlay */
.mobile-nav-overlay {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: rgba(0,0,0,0.5);
    z-index: 2000;
    transition: right 0.3s ease;
}
.mobile-nav-overlay.active { right: 0; }
.mobile-nav-content {
    position: absolute;
    right: 0;
    top: 0;
    width: 320px;
    max-width: 85%;
    height: 100%;
    background: #fff;
    padding: 24px;
    overflow-y: auto;
}
.mobile-nav-close {
    position: absolute;
    top: 16px;
    right: 16px;
    font-size: 28px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text);
}
.mobile-nav-list {
    margin-top: 48px;
}
.mobile-nav-list > li {
    border-bottom: 1px solid var(--border-light);
}
.mobile-nav-list > li > a {
    display: block;
    padding: 14px 0;
    font-size: 1rem;
    font-weight: 500;
}
.mobile-has-dropdown {
    position: relative;
}
.mobile-dropdown-toggle {
    position: absolute;
    right: 0;
    top: 10px;
    width: 32px;
    height: 32px;
    background: var(--bg-light);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
}
.mobile-dropdown {
    display: none;
    padding: 0 0 12px 16px;
}
.mobile-dropdown.active { display: block; }
.mobile-dropdown li a {
    display: block;
    padding: 8px 0;
    font-size: 0.9rem;
    color: var(--text-light);
}
.mobile-nav-content .btn {
    margin-top: 24px;
}

/* --- Hero Section --- */
.hero {
    background: linear-gradient(135deg, var(--secondary) 0%, #16213E 100%);
    color: #fff;
    padding: 100px 0 80px;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: 0; right: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(135deg, rgba(196,30,58,0.15) 0%, transparent 70%);
}
.hero .container {
    position: relative;
    z-index: 1;
}
.hero-content {
    max-width: 680px;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.15);
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.8rem;
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}
.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
}
.hero h1 span { color: var(--primary-light); }
.hero-subtitle {
    font-size: 1.15rem;
    color: rgba(255,255,255,0.75);
    margin-bottom: 36px;
    max-width: 560px;
    line-height: 1.7;
}
.hero-buttons {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}
.hero-stats {
    display: flex;
    gap: 48px;
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid rgba(255,255,255,0.1);
}
.hero-stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent);
}
.hero-stat-label {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.6);
    margin-top: 4px;
}

/* --- Sections --- */
.section {
    padding: 80px 0;
}
.section-light { background: var(--bg-light); }
.section-dark { background: var(--secondary); color: #fff; }
.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 48px;
}
.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--primary);
    margin-bottom: 12px;
}
.section-header h2 {
    margin-bottom: 16px;
}
.section-header p {
    color: var(--text-light);
    font-size: 1.05rem;
}
.section-dark .section-header p {
    color: rgba(255,255,255,0.65);
}

/* --- Category Cards --- */
.category-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.category-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: all var(--transition);
    text-align: center;
    padding: 40px 24px;
}
.category-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}
.category-icon {
    width: 64px;
    height: 64px;
    background: rgba(196,30,58,0.08);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: var(--transition);
}
.category-card:hover .category-icon {
    background: var(--primary);
}
.category-icon svg {
    width: 28px;
    height: 28px;
    stroke: var(--primary);
    fill: none;
    stroke-width: 1.5;
    transition: var(--transition);
}
.category-card:hover .category-icon svg {
    stroke: #fff;
}
.category-card h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}
.category-card p {
    font-size: 0.85rem;
    color: var(--text-light);
    line-height: 1.5;
}
.category-card .card-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.85rem;
    margin-top: 16px;
}

/* --- Product Cards --- */
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.product-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: all var(--transition);
}
.product-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}
.product-card-image {
    position: relative;
    padding: 20px;
    background: var(--bg-light);
    aspect-ratio: 4/3;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.product-card-image img {
    max-height: 180px;
    object-fit: contain;
    transition: transform var(--transition);
}
.product-card:hover .product-card-image img {
    transform: scale(1.05);
}
.product-tags {
    position: absolute;
    top: 12px;
    left: 12px;
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}
.product-tag {
    background: var(--primary);
    color: #fff;
    font-size: 0.65rem;
    padding: 3px 8px;
    border-radius: 50px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.product-tag.tag-premium {
    background: var(--accent);
    color: var(--secondary);
}
.product-card-body {
    padding: 16px 20px 20px;
}
.product-card-category {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 6px;
}
.product-card-title {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.product-card-title a:hover { color: var(--primary); }
.product-card-specs {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}
.product-card-spec {
    font-size: 0.75rem;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 4px;
}
.product-card-spec strong {
    color: var(--text);
}
.product-card-actions {
    display: flex;
    gap: 8px;
    padding-top: 12px;
    border-top: 1px solid var(--border-light);
}
.product-card-actions .btn {
    flex: 1;
    padding: 8px 12px;
    font-size: 0.8rem;
}

/* --- Value Props --- */
.value-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}
.value-item {
    text-align: center;
}
.value-icon {
    width: 72px;
    height: 72px;
    background: rgba(212,175,55,0.12);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}
.value-icon svg {
    width: 32px;
    height: 32px;
    stroke: var(--accent);
    fill: none;
    stroke-width: 1.5;
}
.section-dark .value-item h3 { font-size: 1.05rem; margin-bottom: 8px; }
.section-dark .value-item p { font-size: 0.85rem; color: rgba(255,255,255,0.6); }

/* --- Trust Bar --- */
.trust-bar {
    padding: 40px 0;
    border-bottom: 1px solid var(--border);
}
.trust-items {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 48px;
    flex-wrap: wrap;
}
.trust-item {
    text-align: center;
}
.trust-item-value {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
}
.trust-item-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* --- CTA Section --- */
.cta-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    padding: 80px 0;
    text-align: center;
}
.cta-section h2 { margin-bottom: 16px; }
.cta-section p {
    font-size: 1.1rem;
    opacity: 0.85;
    margin-bottom: 32px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}
.cta-buttons {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}

/* --- Product Detail Page --- */
.breadcrumb {
    padding: 16px 0;
    font-size: 0.85rem;
    color: var(--text-muted);
}
.breadcrumb a { color: var(--text-light); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb span { margin: 0 8px; }

.product-detail {
    padding: 20px 0 60px;
}
.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

/* Product Gallery */
.product-gallery { position: relative; }
.product-main-image {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 1;
    border: 1px solid var(--border);
    margin-bottom: 12px;
}
.product-main-image img {
    max-height: 400px;
    object-fit: contain;
}
.product-thumbnails {
    display: flex;
    gap: 8px;
}
.product-thumbnail {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-sm);
    border: 2px solid var(--border);
    padding: 8px;
    cursor: pointer;
    transition: var(--transition);
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
}
.product-thumbnail:hover,
.product-thumbnail.active {
    border-color: var(--primary);
}
.product-thumbnail img {
    max-height: 100%;
    object-fit: contain;
}

/* Product Info */
.product-info-header { margin-bottom: 24px; }
.product-model {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}
.product-info-header h1 {
    font-size: 1.6rem;
    margin-bottom: 8px;
}
.product-subtitle {
    font-size: 0.95rem;
    color: var(--text-light);
}
.product-info-tags {
    display: flex;
    gap: 6px;
    margin-top: 12px;
    flex-wrap: wrap;
}
.product-info-tag {
    background: var(--bg-light);
    color: var(--text);
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid var(--border);
}

.product-overview {
    margin-bottom: 28px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--border-light);
}
.product-overview p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.7;
}

/* Quick Specs */
.quick-specs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 28px;
}
.quick-spec {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: var(--bg-light);
    border-radius: var(--radius-md);
}
.quick-spec-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}
.quick-spec-value {
    font-size: 0.85rem;
    font-weight: 600;
}

/* Product Actions */
.product-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 28px;
}
.product-actions .btn { flex: 1; }

.product-contact-info {
    background: var(--bg-light);
    border-radius: var(--radius-md);
    padding: 20px;
}
.product-contact-info p {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: 8px;
}
.product-contact-info strong {
    color: var(--text);
}

/* Product Detail Tabs */
.product-tabs {
    margin-top: 48px;
}
.tab-nav {
    display: flex;
    border-bottom: 2px solid var(--border);
    gap: 4px;
    overflow-x: auto;
}
.tab-btn {
    padding: 12px 24px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-light);
    background: none;
    border: none;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: var(--transition);
    white-space: nowrap;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}
.tab-content { display: none; padding: 28px 0; }
.tab-content.active { display: block; }

/* Spec Table */
.spec-table {
    width: 100%;
    border-collapse: collapse;
}
.spec-table tr:nth-child(even) { background: var(--bg-light); }
.spec-table td {
    padding: 12px 16px;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--border-light);
}
.spec-table td:first-child {
    font-weight: 600;
    width: 200px;
    color: var(--text);
}
.spec-table td:last-child {
    color: var(--text-light);
}

/* Features List */
.features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}
.feature-item {
    padding: 20px;
    background: var(--bg-light);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--primary);
}
.feature-item h4 {
    font-size: 0.95rem;
    margin-bottom: 6px;
}
.feature-item p {
    font-size: 0.85rem;
    color: var(--text-light);
}

/* --- Products Listing Page --- */
.page-header {
    background: linear-gradient(135deg, var(--secondary) 0%, #16213E 100%);
    color: #fff;
    padding: 60px 0;
}
.page-header h1 { font-size: 2.2rem; margin-bottom: 12px; }
.page-header p { color: rgba(255,255,255,0.7); font-size: 1.05rem; max-width: 600px; }

.products-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 32px;
    padding: 40px 0;
}

/* Sidebar Filters */
.filter-sidebar {
    position: sticky;
    top: 100px;
}
.filter-group {
    margin-bottom: 24px;
}
.filter-group h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}
.filter-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 0;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-light);
    transition: color var(--transition);
}
.filter-option:hover { color: var(--primary); }
.filter-option.active { color: var(--primary); font-weight: 600; }

.products-listing .product-grid {
    grid-template-columns: repeat(3, 1fr);
}

/* --- About Page --- */
.about-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    padding: 60px 0;
}
.about-hero h2 { margin-bottom: 20px; }
.about-hero p { color: var(--text-light); margin-bottom: 16px; line-height: 1.7; }
.about-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--bg-light);
    aspect-ratio: 4/3;
    display: flex;
    align-items: center;
    justify-content: center;
}

.timeline {
    position: relative;
    padding-left: 32px;
}
.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
}
.timeline-item {
    position: relative;
    padding-bottom: 32px;
}
.timeline-item::before {
    content: '';
    position: absolute;
    left: -37px;
    top: 4px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary);
    border: 3px solid #fff;
    box-shadow: 0 0 0 2px var(--primary);
}
.timeline-year {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}
.timeline-item h4 { margin-bottom: 4px; }
.timeline-item p { font-size: 0.9rem; color: var(--text-light); }

/* Factory Tour Grid */
.factory-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.factory-card {
    background: var(--bg-light);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border);
}
.factory-card-image {
    height: 200px;
    background: #ddd;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}
.factory-card-body {
    padding: 16px;
}
.factory-card h4 { font-size: 1rem; margin-bottom: 6px; }
.factory-card p { font-size: 0.85rem; color: var(--text-light); }

/* --- Quality Page --- */
.qc-process {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.qc-step {
    text-align: center;
    padding: 28px 20px;
    background: #fff;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    position: relative;
}
.qc-step::after {
    content: '\2192';
    position: absolute;
    right: -14px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2rem;
    color: var(--text-muted);
}
.qc-step:last-child::after { display: none; }
.qc-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin: 0 auto 12px;
}
.qc-step h4 { font-size: 0.95rem; margin-bottom: 8px; }
.qc-step p { font-size: 0.8rem; color: var(--text-light); }

.cert-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.cert-card {
    text-align: center;
    padding: 32px 20px;
    background: #fff;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}
.cert-card h4 { font-size: 1rem; color: var(--primary); margin-bottom: 8px; }
.cert-card p { font-size: 0.8rem; color: var(--text-light); }

/* --- Solutions Page --- */
.process-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    counter-reset: step;
}
.process-step {
    padding: 32px 24px;
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    counter-increment: step;
    position: relative;
}
.process-step::before {
    content: counter(step);
    position: absolute;
    top: -14px;
    left: 24px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
}
.process-step h4 { margin-bottom: 8px; }
.process-step p { font-size: 0.85rem; color: var(--text-light); }

.custom-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.custom-option {
    padding: 28px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    text-align: center;
}
.custom-option h4 { margin-bottom: 8px; color: var(--primary); }
.custom-option p { font-size: 0.85rem; color: var(--text-light); }

/* --- Contact Page --- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
    padding: 60px 0;
}
.contact-info-card {
    padding: 20px;
    background: var(--bg-light);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    display: flex;
    gap: 16px;
    align-items: start;
}
.contact-info-card svg {
    flex-shrink: 0;
    color: var(--primary);
}
.contact-info-card h4 { font-size: 0.95rem; margin-bottom: 4px; }
.contact-info-card p { font-size: 0.85rem; color: var(--text-light); }
.contact-info-card a { color: var(--primary); }

/* Form */
.rfq-form {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 36px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}
.rfq-form h3 { margin-bottom: 8px; }
.rfq-form > p { color: var(--text-light); font-size: 0.9rem; margin-bottom: 24px; }
.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: 0.85rem;
    font-weight: 500;
    margin-bottom: 6px;
}
.form-group label .required { color: var(--primary); }
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-family: var(--font);
    font-size: 0.9rem;
    transition: border-color var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(196,30,58,0.1);
}
.form-group textarea { min-height: 120px; resize: vertical; }

/* --- FAQ --- */
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    overflow: hidden;
}
.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: none;
    border: none;
    font-family: var(--font);
    font-size: 0.95rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    transition: background var(--transition);
}
.faq-question:hover { background: var(--bg-light); }
.faq-question .faq-icon {
    font-size: 1.2rem;
    transition: transform var(--transition);
}
.faq-item.active .faq-question .faq-icon { transform: rotate(45deg); }
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}
.faq-answer-inner {
    padding: 0 20px 16px;
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.7;
}

/* --- Floating CTA --- */
.floating-cta {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--primary);
    color: #fff;
    padding: 14px 20px;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 4px 20px rgba(196,30,58,0.4);
    z-index: 900;
    transition: all var(--transition);
}
.floating-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(196,30,58,0.5);
    color: #fff;
}

/* --- Footer --- */
.site-footer { background: var(--secondary); color: rgba(255,255,255,0.8); }
.footer-main { padding: 60px 0 40px; }
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
}
.footer-logo .logo-text { font-size: 1.4rem; color: #fff; }
.footer-desc {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.55);
    margin-top: 12px;
    line-height: 1.6;
}
.footer-certifications {
    display: flex;
    gap: 8px;
    margin-top: 16px;
    flex-wrap: wrap;
}
.cert-badge {
    background: rgba(255,255,255,0.1);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}
.footer-col h4 {
    color: #fff;
    font-size: 0.9rem;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.footer-col ul li a {
    display: block;
    padding: 5px 0;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.55);
    transition: color var(--transition);
}
.footer-col ul li a:hover { color: #fff; padding-left: 4px; }
.footer-contact li {
    display: flex;
    align-items: start;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 0.85rem;
}
.footer-contact svg {
    flex-shrink: 0;
    margin-top: 2px;
    opacity: 0.5;
}
.footer-contact a { color: rgba(255,255,255,0.7); }
.footer-contact a:hover { color: var(--primary-light); }
.footer-response {
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 600;
    margin-top: 8px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 20px 0;
    text-align: center;
}
.footer-bottom p {
    font-size: 0.78rem;
    color: rgba(255,255,255,0.35);
    margin-bottom: 4px;
}

/* --- SVG Product Placeholder --- */
.svg-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-light);
}
.svg-placeholder svg {
    width: 60%;
    height: 60%;
    opacity: 0.6;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* Tablet */
@media (max-width: 1024px) {
    .hero h1 { font-size: 2.4rem; }
    .hero-stats { gap: 32px; }
    .product-grid { grid-template-columns: repeat(3, 1fr); }
    .category-grid { grid-template-columns: repeat(2, 1fr); }
    .value-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .products-layout { grid-template-columns: 220px 1fr; }
    .products-listing .product-grid { grid-template-columns: repeat(2, 1fr); }
    .qc-process { grid-template-columns: repeat(2, 1fr); }
    .qc-step:nth-child(2)::after { display: none; }
    .cert-grid { grid-template-columns: repeat(2, 1fr); }
    .process-steps { grid-template-columns: repeat(2, 1fr); }
    .factory-grid { grid-template-columns: repeat(2, 1fr); }
    .about-hero { grid-template-columns: 1fr; gap: 32px; }
    .product-detail-grid { gap: 32px; }
    .features-grid { grid-template-columns: 1fr; }
}

/* Tablet Portrait */
@media (max-width: 768px) {
    .top-bar-right { display: none; }
    .main-nav { display: none; }
    .mobile-toggle { display: flex; }
    .header-actions .btn { display: none; }

    .hero { padding: 60px 0 50px; }
    .hero h1 { font-size: 1.9rem; }
    .hero-subtitle { font-size: 1rem; }
    .hero-stats { gap: 24px; flex-wrap: wrap; }
    .hero-stat { flex: 1; min-width: 100px; }

    .section { padding: 50px 0; }
    .section-header { margin-bottom: 32px; }
    h2 { font-size: 1.6rem; }

    .product-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .category-grid { grid-template-columns: 1fr; }
    .value-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }

    .product-detail-grid { grid-template-columns: 1fr; }
    .quick-specs { grid-template-columns: 1fr; }
    .product-actions { flex-direction: column; }

    .products-layout {
        grid-template-columns: 1fr;
    }
    .filter-sidebar {
        position: static;
        display: flex;
        gap: 16px;
        flex-wrap: wrap;
        padding-bottom: 20px;
        border-bottom: 1px solid var(--border);
    }
    .filter-group { margin-bottom: 0; }

    .contact-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }

    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .qc-process { grid-template-columns: 1fr; }
    .qc-step::after { display: none; }
    .cert-grid { grid-template-columns: 1fr 1fr; }
    .process-steps { grid-template-columns: 1fr; }
    .custom-options { grid-template-columns: 1fr; }
    .factory-grid { grid-template-columns: 1fr; }

    .floating-cta span { display: none; }
    .floating-cta { padding: 14px; border-radius: 50%; }

    .tab-nav { gap: 0; }
    .tab-btn { padding: 10px 14px; font-size: 0.8rem; }
}

/* Mobile */
@media (max-width: 480px) {
    .hero h1 { font-size: 1.6rem; }
    .hero-buttons { flex-direction: column; }
    .hero-buttons .btn { width: 100%; }
    .hero-stats { gap: 16px; }
    .hero-stat-value { font-size: 1.5rem; }

    .product-grid { grid-template-columns: 1fr; }
    .products-listing .product-grid { grid-template-columns: 1fr; }
    .product-card-image { aspect-ratio: 3/2; }

    .trust-items { gap: 24px; }
    .cert-grid { grid-template-columns: 1fr; }

    .page-header { padding: 40px 0; }
    .page-header h1 { font-size: 1.6rem; }

    .cta-buttons { flex-direction: column; }
    .cta-buttons .btn { width: 100%; }
}