/* ========================================
   BNL Automation - Modern Corporate Website
   Author: AI Assistant
   Version: 1.0
   ======================================== */

/* CSS Variables */
:root {
    --primary: #0a2540;
    --primary-light: #1a3a5c;
    --accent: #00a8e8;
    --accent-dark: #0077b6;
    --accent-glow: rgba(0, 168, 232, 0.3);
    --text: #2d3748;
    --text-light: #718096;
    --text-white: #ffffff;
    --bg: #ffffff;
    --bg-light: #f8fafc;
    --bg-dark: #0a2540;
    --border: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
    --shadow-glow: 0 0 30px var(--accent-glow);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-cn: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", sans-serif;
    --font-en: "Inter", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

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

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

body {
    font-family: var(--font-cn);
    color: var(--text);
    background: var(--bg);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

body.en {
    font-family: var(--font-en);
}

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

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

ul, ol {
    list-style: none;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-padding {
    padding: 100px 0;
}

/* ========================================
   Top Bar
   ======================================== */
.top-bar {
    background: var(--primary);
    color: rgba(255,255,255,0.85);
    font-size: 0.85rem;
    padding: 10px 0;
    position: relative;
    z-index: 1001;
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-bar .contact-info {
    display: flex;
    gap: 24px;
}

.top-bar .contact-info span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.top-bar .contact-info i {
    color: var(--accent);
}

.lang-switch {
    display: flex;
    gap: 8px;
}

.lang-switch button {
    background: transparent;
    border: 1px solid rgba(255,255,255,0.3);
    color: rgba(255,255,255,0.85);
    padding: 4px 14px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: var(--transition);
}

.lang-switch button:hover,
.lang-switch button.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

/* ========================================
   Header / Navigation
   ======================================== */
.header {
    position: sticky;
    top: 0;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
    z-index: 1000;
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    height: 44px;
    width: auto;
    display: block;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -0.5px;
}

.logo-text span {
    color: var(--accent);
}

/* Navigation */
.nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: block;
    padding: 10px 16px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent);
    background: rgba(0,168,232,0.06);
}

/* Dropdown */
.dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background: #fff;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: var(--transition);
    border: 1px solid var(--border);
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr;
}

.dropdown-wide {
    min-width: 420px;
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
}

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

.dropdown a {
    display: block;
    padding: 12px 20px;
    font-size: 0.9rem;
    color: var(--text);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

.dropdown a:last-child {
    border-bottom: none;
}

.dropdown a:hover {
    background: var(--bg-light);
    color: var(--accent);
    padding-left: 24px;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    height: 700px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--primary);
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(0,168,232,0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(0,119,182,0.1) 0%, transparent 40%);
    z-index: 1;
}

.hero-particles {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.hero .container {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.hero-content {
    max-width: 600px;
    color: #fff;
}

.hero-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(0,168,232,0.2);
    border: 1px solid rgba(0,168,232,0.3);
    border-radius: 30px;
    font-size: 0.85rem;
    color: var(--accent);
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: rgba(255,255,255,0.75);
    margin-bottom: 36px;
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    gap: 16px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: #fff;
    box-shadow: 0 8px 24px rgba(0,168,232,0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(0,168,232,0.4);
}

.btn-outline {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255,255,255,0.3);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.5);
}

/* Hero visual */
.hero-visual {
    position: relative;
    width: 500px;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-circle {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(0,168,232,0.2);
}

.hero-circle-1 {
    width: 400px;
    height: 400px;
    animation: rotate 30s linear infinite;
}

.hero-circle-2 {
    width: 320px;
    height: 320px;
    border-color: rgba(0,168,232,0.15);
    animation: rotate 20s linear infinite reverse;
}

.hero-circle-3 {
    width: 240px;
    height: 240px;
    background: rgba(0,168,232,0.05);
    border: none;
}

.hero-device {
    position: relative;
    z-index: 2;
    width: 200px;
    height: 280px;
    background: linear-gradient(180deg, rgba(255,255,255,0.1), rgba(255,255,255,0.02));
    border-radius: 20px;
    border: 1px solid rgba(255,255,255,0.15);
    backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.hero-device-icon {
    font-size: 4rem;
    color: var(--accent);
}

.hero-device-text {
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
    text-align: center;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Hero Slider */
.hero-slider {
    position: absolute;
    inset: 0;
    z-index: 0;
}

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

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

.hero-slide::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, var(--primary) 0%, rgba(10,37,64,0.8) 50%, rgba(10,37,64,0.4) 100%);
}

.hero-dots {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 3;
}

.hero-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.3);
    cursor: pointer;
    transition: var(--transition);
}

.hero-dot.active {
    background: var(--accent);
    width: 30px;
    border-radius: 5px;
}

/* ========================================
   Section Headers
   ======================================== */
.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-label {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(0,168,232,0.08);
    color: var(--accent);
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-title {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   Why Choose Us
   ======================================== */
.why-us {
    background: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.feature-card {
    background: #fff;
    padding: 40px 28px;
    border-radius: var(--radius-md);
    text-align: center;
    border: 1px solid var(--border);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-dark));
    transform: scaleX(0);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(0,168,232,0.1), rgba(0,119,182,0.05));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 1.8rem;
    color: var(--accent);
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: #fff;
    transform: scale(1.1);
}

.feature-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
}

.feature-desc {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.7;
}

/* ========================================
   Products Section
   ======================================== */
.products-filter {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    border-radius: 50px;
    border: 1px solid var(--border);
    background: #fff;
    color: var(--text);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
    box-shadow: 0 4px 16px rgba(0,168,232,0.25);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.product-card {
    background: #fff;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition);
    cursor: pointer;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.product-image {
    position: relative;
    height: 220px;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

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

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

.product-overlay {
    position: absolute;
    inset: 0;
    background: rgba(10,37,64,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.product-overlay-btn {
    padding: 10px 24px;
    background: var(--accent);
    color: #fff;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    transform: translateY(20px);
    transition: var(--transition);
}

.product-card:hover .product-overlay-btn {
    transform: translateY(0);
}

.product-info {
    padding: 24px;
}

.product-date {
    font-size: 0.8rem;
    color: var(--text-light);
    margin-bottom: 8px;
}

.product-name {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.5;
}

/* ========================================
   Stats Section
   ======================================== */
.stats {
    background: var(--primary);
    position: relative;
    overflow: hidden;
}

.stats::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 30% 50%, rgba(0,168,232,0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 50%, rgba(0,119,182,0.08) 0%, transparent 50%);
}

.stats .section-title,
.stats .section-label,
.stats .section-subtitle {
    color: #fff;
}

.stats .section-subtitle {
    opacity: 0.7;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    position: relative;
    z-index: 1;
}

.stat-item {
    text-align: center;
    padding: 40px 20px;
    border-radius: var(--radius-md);
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    transition: var(--transition);
}

.stat-item:hover {
    background: rgba(255,255,255,0.06);
    transform: translateY(-4px);
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 12px;
    font-family: var(--font-en);
}

.stat-label {
    font-size: 1rem;
    color: rgba(255,255,255,0.7);
}

/* ========================================
   News Section
   ======================================== */
.news {
    background: var(--bg-light);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.news-card {
    background: #fff;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.news-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.news-image {
    height: 200px;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

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

.news-card:hover .news-image img {
    transform: scale(1.05);
}

.news-date-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--accent);
    color: #fff;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    text-align: center;
    font-size: 0.8rem;
    font-weight: 700;
}

.news-content {
    padding: 24px;
}

.news-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 0.8rem;
    color: var(--text-light);
}

.news-meta i {
    color: var(--accent);
}

.news-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.5;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--accent);
    font-weight: 600;
    font-size: 0.9rem;
}

.news-link:hover {
    gap: 10px;
}

/* ========================================
   Honor Section
   ======================================== */
.honor-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.honor-item {
    background: #fff;
    border-radius: var(--radius-md);
    padding: 20px;
    border: 1px solid var(--border);
    text-align: center;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.honor-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent);
}

.honor-img {
    width: 100%;
    aspect-ratio: 3/4;
    background: #f8f9fa;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    overflow: hidden;
    cursor: zoom-in;
    border: 1px solid var(--border);
}

.honor-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 8px;
}

.honor-name {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--primary);
    line-height: 1.5;
    min-height: 2.8em;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--primary);
    color: rgba(255,255,255,0.7);
    padding-top: 80px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    margin-bottom: 60px;
}

.footer-brand .logo-text {
    color: #fff;
    margin-bottom: 20px;
    display: inline-block;
}

.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-title {
    color: #fff;
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 24px;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent);
    padding-left: 4px;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 0.9rem;
}

.footer-contact i {
    color: var(--accent);
    margin-top: 4px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 24px 0;
    /* display: flex; */
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    text-align: center;
}

/* ========================================
   Page Banner
   ======================================== */
.page-banner {
    position: relative;
    height: 320px;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.page-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 50% 50%, rgba(0,168,232,0.1) 0%, transparent 60%);
}

.page-banner-content {
    position: relative;
    z-index: 1;
    color: #fff;
}

.page-banner-title {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 12px;
}

.page-banner-subtitle {
    font-size: 1rem;
    color: rgba(255,255,255,0.6);
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* ========================================
   Breadcrumb
   ======================================== */
.breadcrumb {
    background: var(--bg-light);
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
}

.breadcrumb .container {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-light);
}

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

.breadcrumb-separator {
    color: var(--border);
}

.breadcrumb-current {
    color: var(--text);
    font-weight: 600;
}

/* ========================================
   About Page
   ======================================== */
.about-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}

.about-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.about-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(10,37,64,0.3) 100%);
}

.about-text h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 24px;
}

.about-text p {
    font-size: 1rem;
    color: var(--text-light);
    line-height: 1.9;
    margin-bottom: 16px;
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.culture-card {
    background: var(--bg-light);
    padding: 40px 32px;
    border-radius: var(--radius-md);
    text-align: center;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.culture-card:hover {
    background: #fff;
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.culture-card h4 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
}

.culture-card p {
    color: var(--text-light);
    font-size: 1rem;
}

/* ========================================
   Contact Page
   ======================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
}

.contact-info-card {
    background: var(--primary);
    border-radius: var(--radius-lg);
    padding: 48px;
    color: #fff;
}

.contact-info-card h3 {
    font-size: 1.5rem;
    margin-bottom: 32px;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 28px;
}

.contact-info-item i {
    width: 48px;
    height: 48px;
    background: rgba(0,168,232,0.2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-info-item h4 {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
    margin-bottom: 4px;
}

.contact-info-item p {
    font-size: 1.05rem;
    font-weight: 600;
}

.contact-form {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 48px;
    border: 1px solid var(--border);
}

.contact-map {
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
    min-height: 480px;
    box-shadow: var(--shadow-md);
}

.contact-map .leaflet-container {
    border-radius: var(--radius-lg);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--text);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group textarea {
    min-height: 140px;
    resize: vertical;
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1024px) {
    .features-grid,
    .products-grid,
    .honor-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .about-intro {
        grid-template-columns: 1fr;
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
    .hero-title {
        font-size: 2.4rem;
    }
    .hero-visual {
        display: none;
    }
}

@media (max-width: 768px) {
    .logo-text {
        display: none;
    }
    .features-grid,
    .products-grid,
    .honor-grid,
    .stats-grid,
    .news-grid,
    .culture-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
    .top-bar .contact-info {
        display: none;
    }
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 16px;
        box-shadow: var(--shadow-lg);
        gap: 0;
    }
    .nav.active {
        display: flex;
    }
    .nav-item {
        width: 100%;
    }
    .nav-link {
        padding: 14px 16px;
        border-bottom: 1px solid var(--border);
    }
    .dropdown {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        background: var(--bg-light);
        display: none;
    }
    .nav-item:hover .dropdown,
    .nav-item.active .dropdown {
        display: block;
    }
    .menu-toggle {
        display: flex;
    }
    .hero {
        height: 500px;
    }
    .hero-title {
        font-size: 1.8rem;
    }
    .hero-subtitle {
        font-size: 1rem;
    }
    .section-title {
        font-size: 1.8rem;
    }
    .section-padding {
        padding: 60px 0;
    }
    .page-banner {
        height: 240px;
    }
    .page-banner-title {
        font-size: 2rem;
    }
}

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

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes countUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* Scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Back to top */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--accent);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: 0 4px 16px rgba(0,168,232,0.3);
    z-index: 999;
    border: none;
    font-size: 1.2rem;
}

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

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,168,232,0.4);
}


/* ========================================
   Page Loader
   ======================================== */
.page-loader {
    position: fixed;
    inset: 0;
    background: var(--primary);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

.page-loader.loaded {
    opacity: 0;
    visibility: hidden;
}

.loader-spinner {
    position: relative;
    width: 80px;
    height: 80px;
}

.loader-ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 3px solid transparent;
    border-top-color: var(--accent);
    animation: spin 1.2s linear infinite;
}

.loader-ring:nth-child(2) {
    inset: 10px;
    border-top-color: rgba(0,168,232,0.6);
    animation-duration: 0.9s;
    animation-direction: reverse;
}

.loader-ring:nth-child(3) {
    inset: 20px;
    border-top-color: rgba(0,168,232,0.3);
    animation-duration: 0.6s;
}

.loader-text {
    margin-top: 24px;
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--accent);
    letter-spacing: 4px;
    animation: pulse 1.5s ease infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* ========================================
   Scroll Progress Bar
   ======================================== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-dark));
    z-index: 10001;
    transition: width 0.1s linear;
    box-shadow: 0 0 10px var(--accent-glow);
}

/* ========================================
   Enhanced Nav Link Animation
   ======================================== */
.nav-link {
    position: relative;
    overflow: hidden;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 6px;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent-dark));
    transition: width 0.3s ease, left 0.3s ease;
    border-radius: 1px;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 60%;
    left: 20%;
}

/* ========================================
   Menu Toggle Animation
   ======================================== */
.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: translateX(-10px);
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.menu-toggle span {
    transition: all 0.3s ease;
}

/* ========================================
   Enhanced Hero Device
   ======================================== */
.hero-device {
    transition: transform 0.3s ease;
    will-change: transform;
}

.hero-title {
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.hero-subtitle {
    transition: opacity 0.5s ease, transform 0.5s ease;
}

/* ========================================
   3D Tilt Card Effect
   ======================================== */
.feature-card,
.culture-card {
    transform-style: preserve-3d;
    will-change: transform;
}

.feature-card:hover,
.culture-card:hover {
    box-shadow: 0 20px 60px rgba(0,0,0,0.15), 0 0 40px var(--accent-glow);
}

/* ========================================
   Product Card Enhanced Hover
   ======================================== */
.product-card {
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.4s ease;
}

.product-card:hover {
    transform: translateY(-12px) scale(1.02);
}

.product-card img {
    transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ========================================
   News Card Enhanced
   ======================================== */
.news-card {
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.4s ease;
}

.news-card:hover {
    transform: translateY(-8px) scale(1.01);
}

.news-card img {
    transition: transform 0.6s ease;
}

/* ========================================
   Section Title Text Reveal
   ======================================== */
.section-title {
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-dark));
    border-radius: 2px;
    transition: width 0.6s ease, left 0.6s ease;
}

.section-header:hover .section-title::after,
.section-title.text-revealed::after {
    width: 60px;
    left: calc(50% - 30px);
}

/* ========================================
   Filter Button Magnetic Effect Base
   ======================================== */
.filter-btn {
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    will-change: transform;
}

.filter-btn:hover {
    transform: scale(1.05);
}

.filter-btn.active {
    transform: scale(1.05);
    box-shadow: 0 4px 20px rgba(0,168,232,0.35);
}

/* ========================================
   Button Glow Effect
   ======================================== */
.btn-primary {
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.btn-primary:hover::before {
    width: 300px;
    height: 300px;
}

/* ========================================
   Stats Item Glow
   ======================================== */
.stat-item:hover {
    box-shadow: 0 0 30px rgba(0,168,232,0.15);
    border-color: rgba(0,168,232,0.2);
}

.stat-number {
    background: linear-gradient(135deg, var(--accent), #00d4ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========================================
   Honor Item Shine Effect
   ======================================== */
.honor-item {
    position: relative;
    overflow: hidden;
}

.honor-item::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent 40%,
        rgba(0,168,232,0.03) 50%,
        transparent 60%
    );
    transform: rotate(45deg) translateX(-100%);
    transition: transform 0.8s ease;
}

.honor-item:hover::before {
    transform: rotate(45deg) translateX(100%);
}

/* ========================================
   Contact Form Focus Glow
   ======================================== */
.form-group input:focus,
.form-group textarea:focus {
    box-shadow: 0 0 0 3px var(--accent-glow), 0 0 20px rgba(0,168,232,0.1);
}

/* ========================================
   Back to Top Enhanced
   ======================================== */
.back-to-top {
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.back-to-top:hover {
    transform: translateY(-6px) scale(1.1);
    box-shadow: 0 8px 30px rgba(0,168,232,0.5);
}

.back-to-top.visible {
    animation: bounceIn 0.5s ease;
}

@keyframes bounceIn {
    0% { transform: scale(0); opacity: 0; }
    60% { transform: scale(1.2); }
    100% { transform: scale(1); opacity: 1; }
}

/* ========================================
   Staggered Reveal Delays
   ======================================== */
.reveal.visible:nth-child(1) { transition-delay: 0s; }
.reveal.visible:nth-child(2) { transition-delay: 0.08s; }
.reveal.visible:nth-child(3) { transition-delay: 0.16s; }
.reveal.visible:nth-child(4) { transition-delay: 0.24s; }
.reveal.visible:nth-child(5) { transition-delay: 0.32s; }
.reveal.visible:nth-child(6) { transition-delay: 0.40s; }

/* ========================================
   Korean Font Support
   ======================================== */
body.ko {
    font-family: "Noto Sans KR", "Malgun Gothic", "Microsoft YaHei", sans-serif;
}

/* ========================================
   Enhanced Reveal Animation Variants
   ======================================== */
.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-scale.visible {
    opacity: 1;
    transform: scale(1);
}