/* ========================================
   QIMEI Packaging - 美国市场风格
   明亮现代 / 专业商务风格
   ======================================== */

/* CSS Variables */
:root {
    /* 主色调 - 现代蓝色系（符合美国市场审美） */
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    
    /* 强调色 - 明亮蓝色 */
    --accent: #3b82f6;
    --accent-light: #60a5fa;
    --accent-dark: #1e40af;
    
    /* 背景色 - 明亮现代 */
    --dark-bg: #ffffff;
    --dark-bg-2: #f8fafc;
    --dark-bg-3: #f1f5f9;
    
    /* 中性色 */
    --white: #ffffff;
    --gray-100: #f5f7fa;
    --gray-200: #e8ecf0;
    --gray-300: #d0d7e0;
    --gray-400: #a0aec0;
    --gray-500: #718096;
    --gray-600: #4a5568;
    --gray-700: #2d3748;
    --gray-800: #1a202c;
    
    /* 功能色 */
    --success: #28a745;
    --eco-green: #2ecc71;
    
    /* 字体 */
    --font-sans: 'Inter', 'Noto Sans SC', -apple-system, sans-serif;
    
    /* 间距 */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    
    /* 过渡 */
    --transition: 0.3s ease;
    --transition-fast: 0.15s ease;
    
    /* 导航高度 */
    --header-height: 80px;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul, ol {
    list-style: none;
}

img, svg {
    max-width: 100%;
    display: block;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* ========================================
   Header / Navigation
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--gray-200);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-img {
    height: 128px;
    width: auto;
    object-fit: contain;
    transition: var(--transition);
}

.logo-img:hover {
    opacity: 0.9;
}

.logo-fallback {
    display: flex;
    flex-direction: column;
    color: var(--primary);
}

.logo-main {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    line-height: 1;
}

.logo-sub {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    opacity: 0.7;
    margin-top: 2px;
}

.main-nav {
    display: flex;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.nav-item {
    padding: var(--space-3) var(--space-4);
    color: var(--gray-700);
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: 4px;
    transition: var(--transition);
}

.nav-item:hover,
.nav-item.active {
    color: var(--primary);
    background: rgba(37, 99, 235, 0.1);
}

/* Dropdown */
.has-dropdown {
    position: relative;
}

.dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 180px;
    background: var(--dark-bg-2);
    border-radius: 4px;
    padding: var(--space-2) 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}

.has-dropdown:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown a {
    display: block;
    padding: var(--space-2) var(--space-4);
    color: rgba(255,255,255,0.7);
    font-size: 0.875rem;
}

.dropdown a:hover {
    color: var(--white);
    background: rgba(255,255,255,0.05);
}

/* Header Right */
.header-right {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.lang-switch {
    display: flex;
    gap: var(--space-1);
}

.lang-btn {
    padding: var(--space-1) var(--space-2);
    color: var(--gray-600);
    font-size: 0.8125rem;
    font-weight: 500;
    border-radius: 4px;
    transition: var(--transition);
    cursor: pointer;
    background: transparent;
    border: none;
}

.lang-btn:hover {
    color: var(--primary);
}

.lang-btn.active {
    color: var(--primary);
    background: rgba(37, 99, 235, 0.1);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-2);
}

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    transition: var(--transition);
}

.mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Mobile Menu */
@media (max-width: 992px) {
    .main-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--white);
        border-top: 1px solid var(--gray-200);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    }
    
    .main-nav.active {
        max-height: 500px;
        padding: var(--space-4) 0;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 0;
        padding: 0 var(--space-4);
    }
    
    .nav-item {
        display: block;
        padding: var(--space-4);
        border-bottom: 1px solid rgba(255,255,255,0.05);
    }
    
    .has-dropdown .dropdown {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        background: transparent;
        box-shadow: none;
        padding: var(--space-2) 0 var(--space-2) var(--space-4);
        margin-top: var(--space-2);
    }
    
    .dropdown a {
        padding: var(--space-2) 0;
        font-size: 0.875rem;
    }
}

/* ========================================
   Hero Banner
   ======================================== */
.hero-banner {
    position: relative;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
}

.hero-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 1s ease;
}

.hero-slide.active {
    opacity: 1;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 50%, var(--primary-dark) 100%);
    background-image: url('../images/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        linear-gradient(135deg, rgba(37, 99, 235, 0.35) 0%, rgba(30, 64, 175, 0.4) 50%, rgba(37, 99, 235, 0.35) 100%),
        radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(30, 64, 175, 0.1) 0%, transparent 50%);
}

.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
    text-align: center;
    color: var(--white);
    padding: var(--header-height) var(--space-6) var(--space-16);
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
    text-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.hero-desc {
    font-size: clamp(1rem, 2vw, 1.25rem);
    opacity: 0.85;
    max-width: 600px;
    margin-bottom: var(--space-8);
}

.hero-btns {
    display: flex;
    gap: var(--space-4);
}

.btn-primary {
    padding: var(--space-3) var(--space-8);
    background: var(--accent);
    color: var(--white);
    font-weight: 500;
    border-radius: 4px;
    transition: var(--transition);
}

.btn-primary:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.4);
}

.btn-outline {
    padding: var(--space-3) var(--space-8);
    color: var(--white);
    font-weight: 500;
    border: 1px solid rgba(255,255,255,0.4);
    border-radius: 4px;
    transition: var(--transition);
}

.btn-outline:hover {
    border-color: var(--primary);
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
}

.hero-indicators {
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: var(--space-2);
    z-index: 10;
}

.indicator {
    width: 40px;
    height: 3px;
    background: rgba(255,255,255,0.3);
    border-radius: 2px;
    cursor: pointer;
    transition: var(--transition);
}

.indicator.active {
    background: var(--accent);
}

/* ========================================
   About Section
   ======================================== */
.section-about {
    padding: var(--space-20) 0;
    background: var(--white);
}

.section-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--accent);
    margin-bottom: var(--space-2);
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: var(--space-3);
}

.section-title.light {
    color: var(--gray-800);
}

.link-more {
    display: inline-block;
    color: var(--accent);
    font-size: 0.9375rem;
    font-weight: 500;
    margin-bottom: var(--space-10);
}

.link-more:hover {
    color: var(--accent-dark);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.about-text p {
    color: var(--gray-600);
    margin-bottom: var(--space-4);
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-4);
}

.about-video {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.about-video-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--gray-800);
}

.about-video-cover {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    border: 2px solid var(--gray-300);
    border-radius: 12px;
    background:
        linear-gradient(135deg, rgba(0,0,0,0.45), rgba(0,0,0,0.25)),
        url("../images/video-poster.jpg");
    background-size: cover;
    background-position: center;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
}

.about-video-cover:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
}

.about-video-cover-text {
    position: absolute;
    left: 16px;
    bottom: 14px;
    color: rgba(255,255,255,0.92);
    font-size: 0.9375rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.about-video-play-icon {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 74px;
    height: 74px;
    transform: translate(-50%, -50%);
    border-radius: 999px;
    background: rgba(255,255,255,0.92);
    box-shadow: 0 12px 28px rgba(0,0,0,0.25);
}

.about-video-play-icon::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    width: 0;
    height: 0;
    transform: translate(-40%, -50%);
    border-left: 18px solid var(--primary);
    border-top: 12px solid transparent;
    border-bottom: 12px solid transparent;
}

.video-modal {
    position: fixed;
    inset: 0;
    display: none;
    z-index: 9999;
}

.video-modal.is-open {
    display: block;
}

.video-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.62);
}

.video-modal-dialog {
    position: relative;
    width: min(920px, calc(100vw - 32px));
    margin: 7vh auto 0;
    background: var(--white);
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 24px 60px rgba(0,0,0,0.35);
}

.video-modal-close {
    position: absolute;
    right: 10px;
    top: 8px;
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 10px;
    background: rgba(0,0,0,0.6);
    color: var(--white);
    font-size: 24px;
    line-height: 40px;
    cursor: pointer;
    z-index: 2;
}

.video-modal-player {
    width: 100%;
    height: auto;
    display: block;
    aspect-ratio: 16 / 9;
    background: #000;
}

.stat-item {
    text-align: center;
    padding: var(--space-6);
    background: var(--gray-100);
    border-radius: 8px;
    transition: var(--transition);
}

.stat-item:hover {
    background: var(--primary);
    transform: translateY(-4px);
}

.stat-item:hover .stat-num,
.stat-item:hover .stat-unit,
.stat-item:hover .stat-label {
    color: var(--white);
}

.stat-num {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
    display: inline;
}

.stat-unit {
    font-size: 1.25rem;
    color: var(--primary);
    margin-left: 2px;
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-top: var(--space-2);
}

/* Certificates Section */
.certificates-section {
    margin-top: var(--space-16);
    padding-top: var(--space-12);
    border-top: 1px solid var(--gray-200);
}

.certificates-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: var(--space-8);
    text-align: center;
}

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.certificate-item {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
}

.certificate-item:hover {
    border-color: var(--accent);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
    transform: translateY(-4px);
}

.certificate-image {
    position: relative;
    width: 100%;
    padding-top: 140%; /* 保持证书比例 */
    background: var(--gray-100);
    overflow: hidden;
}

.certificate-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.certificate-item:hover .certificate-image img {
    transform: scale(1.05);
}

.certificate-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    background: var(--gray-100);
}

.certificate-placeholder svg {
    width: 48px;
    height: 48px;
    margin-bottom: var(--space-2);
}

.certificate-placeholder span {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* Certification Labels */
.certification-labels {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: auto;
    gap: var(--space-6);
    margin-top: var(--space-8);
    padding-top: var(--space-8);
    border-top: 1px solid var(--gray-200);
    margin-left: 400px;
}

.certification-labels .cert-label:nth-child(1) {
    grid-column: 1;
    grid-row: 1;
    margin-left: -350px;
}

.certification-labels .cert-label:nth-child(2) {
    grid-column: 2;
    grid-row: 1;
    margin-left: -250px;
}

.certification-labels .cert-label:nth-child(3) {
    grid-column: 3;
    grid-row: 1;
    margin-left: -150px;
}

.certification-labels .cert-label:nth-child(4) {
    grid-column: 4;
    grid-row: 1;
    margin-left: -50px;
}

.cert-label {
    width: 100%;
    height: 80px;
    padding: 0;
    margin: 0;
    background: var(--white);
    border: 2px solid var(--gray-300);
    border-radius: 8px;
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-800);
    letter-spacing: 0.1em;
    cursor: default;
    line-height: 80px;
    transition: var(--transition);
    box-sizing: border-box;
}

.cert-label:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0,160,233,0.1);
}

.cert-label:hover {
    border-color: var(--accent);
    background: var(--gray-50);
}

/* ========================================
   Products Section
   ======================================== */
.section-products {
    padding: var(--space-20) 0;
    background: var(--white);
    overflow: visible;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-12);
}

.section-subtitle {
    font-size: 0.875rem;
    color: var(--gray-500);
    letter-spacing: 0.1em;
    margin-top: var(--space-2);
}

.products-categories {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    overflow: visible;
    position: relative;
    align-items: start;
}

.product-category {
    background: var(--gray-100);
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    padding: var(--space-6);
    transition: var(--transition);
    color: #000000 !important;
    opacity: 1 !important;
    overflow: visible;
    position: relative;
}

.product-category:hover {
    border-color: var(--accent);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    transform: translateY(-2px);
}

.product-category h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: #000000 !important;
    opacity: 1 !important;
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 2px solid var(--accent);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-wrap: wrap;
    min-height: 3.2em;
}

.product-category-en {
    font-size: 0.875rem;
    font-weight: 400;
    color: #666666 !important;
    opacity: 1 !important;
    font-style: italic;
}

.product-sublist {
    list-style: none;
    padding: 0;
    margin: 0;
    opacity: 1 !important;
    overflow: visible;
    position: relative;
}

.product-sublist li {
    padding: var(--space-2) 0;
    color: #333333 !important;
    opacity: 1 !important;
    font-size: 0.9375rem;
    border-bottom: 1px solid var(--gray-200);
    transition: var(--transition);
    cursor: pointer;
}

.product-sublist li:last-child {
    border-bottom: none;
}

.product-sublist li:hover {
    color: var(--accent);
    padding-left: var(--space-2);
}

/* Product center: Tag Pin (left list + right preview box) */
.product-pin-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--space-6);
    align-items: start;
}

.product-preview-box {
    width: 320px;
    height: 240px;
    border: 1px solid var(--gray-200);
    border-radius: 10px;
    background: var(--white);
    margin-top: 10px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}

.product-preview-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.product-preview-placeholder {
    position: absolute;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    color: var(--gray-500);
    font-size: 0.95rem;
}

.product-preview-img.is-missing + .product-preview-placeholder {
    display: flex;
}

/* Responsive: stack preview under list */
@media (max-width: 900px) {
    .product-pin-layout {
        grid-template-columns: 1fr;
    }

    .product-preview-box {
        width: 100%;
        height: 220px;
    }
}

.product-3d-desc {
    color: #333333 !important;
    opacity: 1 !important;
    font-size: 0.9375rem;
    margin-top: var(--space-2);
}

/* ========================================
   Partners Section
   ======================================== */
.section-partners {
    padding: var(--space-20) 0;
    background: var(--gray-100);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.partner-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    padding: var(--space-8);
    text-align: center;
    transition: var(--transition);
}

.partner-card:hover {
    border-color: var(--accent);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
    transform: translateY(-4px);
}

.partner-logo {
    width: 120px;
    height: 80px;
    background: var(--gray-200);
    border-radius: 4px;
    margin: 0 auto var(--space-4);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.partner-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: var(--space-2);
}

.partner-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
}

.partner-placeholder svg {
    width: 48px;
    height: 48px;
}

.partner-card h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
}

/* ========================================
   News Section
   ======================================== */
.section-news {
    padding: var(--space-20) 0;
    background: var(--white);
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.news-item {
    display: flex;
    gap: var(--space-6);
    padding: var(--space-6);
    background: var(--gray-100);
    border-radius: 8px;
    border-left: 4px solid var(--accent);
    transition: var(--transition);
}

.news-item:hover {
    background: var(--gray-200);
    transform: translateX(4px);
}

.news-item .news-thumb {
    width: 1000px;
    height: 600px;
    background: var(--gray-300);
    border-radius: 4px;
    flex-shrink: 0;
    overflow: hidden;
    position: relative;
}

.news-item .news-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.news-item .news-thumb .news-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-300);
    color: var(--gray-500);
}

.news-item .news-thumb .news-placeholder svg {
    width: 48px;
    height: 48px;
}

.news-content {
    flex: 1;
}

.news-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: var(--space-2);
    line-height: 1.4;
}

.news-source {
    font-size: 0.875rem;
    color: var(--accent);
    margin-bottom: var(--space-2);
}

.news-excerpt {
    font-size: 0.9375rem;
    color: var(--gray-600);
    margin-bottom: var(--space-3);
    line-height: 1.6;
}

.news-link {
    font-size: 0.875rem;
    color: var(--accent);
    font-weight: 500;
}

.news-link:hover {
    color: var(--accent-dark);
    text-decoration: underline;
}

/* ========================================
   Online Order Section
   ======================================== */
.section-order {
    padding: var(--space-20) 0;
    background: var(--white);
}

.order-header {
    text-align: center;
    margin-bottom: var(--space-12);
}

.order-header h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: var(--space-2);
}

.order-subtitle {
    font-size: 0.875rem;
    color: var(--gray-500);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.order-form-wrapper {
    max-width: 800px;
    margin: 0 auto;
    background: var(--gray-100);
    border-radius: 8px;
    padding: var(--space-8);
    border: 1px solid var(--gray-200);
}

.order-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.order-form .form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.order-form label {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--gray-700);
}

.order-form input,
.order-form textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: 4px;
    color: var(--gray-800);
    font-family: inherit;
    font-size: 0.9375rem;
    transition: var(--transition);
}

.order-form input:focus,
.order-form textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0,160,233,0.1);
}

.order-form textarea {
    resize: vertical;
    min-height: 120px;
}

.order-form .btn-submit {
    padding: var(--space-4) var(--space-8);
    background: var(--accent);
    color: var(--white);
    font-weight: 600;
    border-radius: 4px;
    transition: var(--transition);
    cursor: pointer;
    margin-top: var(--space-4);
    align-self: flex-start;
}

.order-form .btn-submit:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.4);
}

/* ========================================
   Contact Banner
   ======================================== */
.contact-banner {
    background: var(--accent);
    padding: var(--space-8) 0;
}

.contact-banner-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-8);
    color: var(--white);
    text-align: center;
}

.contact-label {
    font-size: 0.875rem;
    opacity: 0.9;
}

.contact-phone {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.contact-email {
    font-size: 0.9375rem;
    opacity: 0.9;
}

/* ========================================
   Contact Section
   ======================================== */
.section-contact {
    padding: var(--space-20) 0;
    background: var(--white);
}

.contact-header {
    text-align: center;
    margin-bottom: var(--space-12);
}

.contact-badge {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: var(--space-2);
}

.contact-header h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-800);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-8);
    align-items: start;
}

.contact-form-wrapper {
    background: var(--gray-100);
    border-radius: 8px;
    padding: var(--space-8);
    border: 1px solid var(--gray-200);
}

.contact-form-wrapper h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: var(--space-6);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: 4px;
    color: var(--gray-800);
    font-family: inherit;
    font-size: 0.9375rem;
    transition: var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-500);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(0,160,233,0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.btn-submit {
    padding: var(--space-4) var(--space-6);
    background: var(--accent);
    color: var(--white);
    font-weight: 600;
    border-radius: 4px;
    transition: var(--transition);
    cursor: pointer;
    margin-top: var(--space-2);
}

.btn-submit:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.4);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
}

.contact-card {
    background: var(--gray-100);
    border-radius: 8px;
    padding: var(--space-6);
    border: 1px solid var(--gray-200);
}

.contact-card.main {
    grid-column: span 2;
    background: rgba(0,160,233,0.05);
    border-color: var(--accent);
}

.contact-card h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 2px solid var(--accent);
}

.contact-info li {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
    font-size: 0.875rem;
    color: var(--gray-600);
}

.info-label {
    color: var(--gray-500);
    flex-shrink: 0;
    width: 60px;
    font-weight: 500;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--gray-100);
    padding: var(--space-8) 0;
    border-top: 1px solid var(--gray-200);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-info p {
    font-size: 0.8125rem;
    color: var(--gray-600);
    margin-bottom: var(--space-1);
}

.footer-qrcode {
    display: flex;
    gap: var(--space-6);
}

.qrcode-box {
    text-align: center;
}

.qrcode-placeholder {
    width: 80px;
    height: 80px;
    background: var(--white);
    border-radius: 4px;
    margin-bottom: var(--space-2);
}

.qrcode-box span {
    font-size: 0.75rem;
    color: var(--gray-400);
}

/* ========================================
   Fixed Sidebar
   ======================================== */
.fixed-sidebar {
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 900;
    display: flex;
    flex-direction: column;
    background: var(--white);
    border-radius: 8px 0 0 8px;
    overflow: hidden;
    box-shadow: -2px 0 8px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--gray-200);
    border-right: none;
}

.sidebar-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    color: var(--gray-700);
    border-bottom: 1px solid var(--gray-200);
    transition: var(--transition);
}

.sidebar-item:last-child {
    border-bottom: none;
}

.sidebar-item:hover {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
}

.sidebar-item svg {
    width: 20px;
    height: 20px;
    margin-bottom: 4px;
}

.sidebar-label {
    font-size: 0.625rem;
}

/* ========================================
   Back to Top
   ======================================== */
.back-top {
    position: fixed;
    bottom: var(--space-8);
    right: 80px;
    width: 44px;
    height: 44px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 900;
}

.back-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-top:hover {
    background: var(--accent);
    transform: translateY(-4px);
}

.back-top svg {
    width: 20px;
    height: 20px;
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1200px) {
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .certificates-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .products-categories {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-card.main {
        grid-column: span 2;
    }
}

@media (max-width: 992px) {
    .main-nav {
        display: none;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .certificates-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .products-categories {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news-item {
        flex-direction: column;
    }
    
    .news-item .news-thumb {
        width: 100%;
        height: 200px;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }
    
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .certificates-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .products-categories {
        grid-template-columns: 1fr;
    }
    
    .partners-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-banner-content {
        flex-direction: column;
        gap: var(--space-3);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-card.main {
        grid-column: span 1;
    }
    
    .contact-form-wrapper {
        padding: var(--space-6);
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--space-6);
        text-align: center;
    }
    
    .fixed-sidebar {
        display: none;
    }
    
    .back-top {
        right: var(--space-4);
    }
}

@media (max-width: 480px) {
    .hero-btns {
        flex-direction: column;
        width: 100%;
    }
    
    .btn-primary,
    .btn-outline {
        width: 100%;
        text-align: center;
    }
    
    .stat-item {
        padding: var(--space-4);
    }
    
    .stat-num {
        font-size: 1.75rem;
    }
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.animate-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   Product Page Styles
   ======================================== */
.product-page {
    padding: calc(var(--header-height) + var(--space-8)) var(--space-4) var(--space-16);
    background: var(--white);
    min-height: calc(100vh - var(--header-height));
}

.breadcrumb {
    margin-bottom: var(--space-6);
    font-size: 0.9rem;
    color: var(--gray-500);
}

.breadcrumb .separator {
    margin: 0 var(--space-2);
    color: var(--gray-400);
}

.product-page-header {
    margin-bottom: var(--space-8);
    text-align: center;
}

.product-page-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: var(--space-2);
}

.product-page-subtitle {
    font-size: 1rem;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.product-page-actions {
    margin-bottom: var(--space-8);
    text-align: right;
}

.btn-back {
    display: inline-flex;
    align-items: center;
    padding: var(--space-3) var(--space-6);
    background: var(--primary);
    color: var(--white);
    border-radius: 4px;
    font-size: 0.9rem;
    transition: var(--transition);
}

.btn-back:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.product-list-container {
    max-width: 1200px;
    margin: 0 auto;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--space-6);
    margin-bottom: var(--space-12);
}

.product-item {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
}

.product-item:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    transform: translateY(-4px);
    border-color: var(--accent);
}

.product-image {
    width: 100%;
    height: 200px;
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.product-item:hover .product-image img {
    transform: scale(1.05);
}

.product-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
}

.product-placeholder svg {
    width: 64px;
    height: 64px;
    margin-bottom: var(--space-2);
}

.product-info {
    padding: var(--space-4);
    text-align: center;
}

.product-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--gray-800);
    margin: 0;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-6) 0;
    border-top: 1px solid var(--gray-200);
}

.pagination-info {
    color: var(--gray-600);
    font-size: 0.9rem;
}

.pagination-controls {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.pagination-btn {
    padding: var(--space-2) var(--space-4);
    background: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: 4px;
    color: var(--gray-700);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.pagination-btn:hover:not(.disabled) {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.pagination-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-pages {
    display: flex;
    gap: var(--space-1);
}

.page-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid var(--gray-300);
    border-radius: 4px;
    color: var(--gray-700);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.page-number:hover {
    background: var(--gray-100);
    border-color: var(--primary);
}

.page-number.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

/* Responsive Product Page */
@media (max-width: 768px) {
    .product-page-title {
        font-size: 2rem;
    }
    
    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: var(--space-4);
    }
    
    .product-image {
        height: 150px;
    }
    
    .pagination {
        flex-direction: column;
        gap: var(--space-4);
    }
}