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

:root {
    --accent: #6366f1;
    --accent2: #06b6d4;
    --accent3: #f59e0b;
    --dark: #030712;
    --dark2: #0f172a;
    --dark3: #1e293b;
    --white: #ffffff;
    --gray: #94a3b8;
    --gray-light: #cbd5e1;
    --radius: 20px;
    /* Light theme tokens */
    --light-bg: #f8fafc;
    --light-card: #ffffff;
    --light-text: #1e293b;
    --light-text-sub: #64748b;
    --light-border: #e2e8f0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    color: var(--white);
    background: var(--dark);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    letter-spacing: 0.2px;
}

.container {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 48px;
}

/* ===== CANVAS BACKGROUND ===== */
#particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.navbar.scrolled {
    padding: 12px 0;
    background: rgba(3, 7, 18, 0.85);
    backdrop-filter: blur(24px) saturate(180%);
    border-bottom: 1px solid rgba(99, 102, 241, 0.1);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 14px;
    text-decoration: none;
    z-index: 10;
}

.logo-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
    font-size: 15px;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
}

.logo-text {
    font-size: 16px;
    font-weight: 700;
    color: var(--white);
}

.logo-text span {
    display: block;
    font-size: 10px;
    font-weight: 400;
    color: var(--gray);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 44px;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--gray-light);
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s;
    position: relative;
    letter-spacing: 0.5px;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--white);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent2));
    transition: width 0.3s;
    border-radius: 2px;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.lang-toggle {
    display: flex;
    gap: 2px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 24px;
    padding: 4px;
}

.lang-btn {
    padding: 6px 16px;
    border: none;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    background: transparent;
    color: var(--gray);
}

.lang-btn.active {
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    color: white;
    box-shadow: 0 2px 12px rgba(99, 102, 241, 0.4);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    z-index: 10;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: all 0.3s;
}

/* ===== HERO - FULL SCREEN ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 120px 0;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 60% at 50% 40%, rgba(99, 102, 241, 0.15) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 80% 20%, rgba(6, 182, 212, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse 50% 40% at 20% 80%, rgba(245, 158, 11, 0.06) 0%, transparent 50%);
    z-index: 1;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
    background-size: 80px 80px;
    z-index: 1;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, black, transparent);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 1000px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    padding: 10px 28px;
    border-radius: 40px;
    font-size: 14px;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 48px;
    letter-spacing: 1px;
    animation: fadeInDown 1s ease;
}

.hero-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--accent2);
    border-radius: 50%;
    animation: blink 2s infinite;
    box-shadow: 0 0 12px var(--accent2);
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

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

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero h1 {
    font-size: clamp(42px, 7vw, 80px);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 32px;
    letter-spacing: -2px;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero h1 .gradient-text {
    background: linear-gradient(135deg, var(--accent), var(--accent2), var(--accent3));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 200%;
    animation: gradientShift 4s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero p {
    font-size: clamp(16px, 2vw, 22px);
    color: var(--gray);
    margin-bottom: 56px;
    line-height: 1.8;
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease 0.4s both;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.6s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 18px 44px;
    border-radius: 60px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
    letter-spacing: 0.3px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    color: white;
    box-shadow: 0 8px 32px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 16px 48px rgba(99, 102, 241, 0.5);
}

.btn-outline {
    background: rgba(255,255,255,0.04);
    color: var(--white);
    border: 1px solid rgba(255,255,255,0.2);
    backdrop-filter: blur(8px);
}

.btn-outline:hover {
    border-color: var(--accent);
    background: rgba(99, 102, 241, 0.08);
    transform: translateY(-4px);
}

/* Hero Stats */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2px;
    margin-top: 100px;
    background: rgba(255,255,255,0.05);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.08);
    animation: fadeInUp 1s ease 0.8s both;
}

.hero-stat {
    padding: 40px 24px;
    text-align: center;
    background: rgba(3, 7, 18, 0.6);
    backdrop-filter: blur(10px);
    transition: all 0.4s;
}

.hero-stat:hover {
    background: rgba(99, 102, 241, 0.08);
}

.hero-stat .num {
    font-size: 44px;
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
    letter-spacing: -1px;
}

.hero-stat .label {
    font-size: 13px;
    color: var(--gray);
    letter-spacing: 0.5px;
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--gray);
    font-size: 12px;
    letter-spacing: 2px;
    animation: bounce 2s infinite;
}

.scroll-indicator::after {
    content: '';
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--accent), transparent);
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* ===== PAGE BANNER (Sub-pages) ===== */
.page-banner {
    position: relative;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    padding: 160px 0 80px;
}

.page-banner .hero-bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 70% 50% at 50% 50%, rgba(99, 102, 241, 0.12) 0%, transparent 60%),
        radial-gradient(ellipse 50% 40% at 80% 30%, rgba(6, 182, 212, 0.08) 0%, transparent 50%);
}

.page-banner h1 {
    font-size: clamp(36px, 5vw, 64px);
    font-weight: 900;
    letter-spacing: -1px;
    margin-bottom: 16px;
    position: relative;
    z-index: 2;
}

.page-banner p {
    font-size: 18px;
    color: var(--gray);
    position: relative;
    z-index: 2;
}

.breadcrumb {
    margin-top: 24px;
    font-size: 14px;
    color: var(--gray);
    position: relative;
    z-index: 2;
}

.breadcrumb a {
    color: var(--accent);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

/* ===== SECTIONS ===== */
.section {
    position: relative;
    padding: 140px 0;
    z-index: 2;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-tag {
    display: inline-block;
    padding: 8px 24px;
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid rgba(99, 102, 241, 0.2);
    color: var(--accent);
    border-radius: 30px;
    font-size: 12px;
    font-weight: 700;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 3px;
}

.section-header h2 {
    font-size: clamp(32px, 4vw, 52px);
    font-weight: 900;
    margin-bottom: 20px;
    letter-spacing: -1px;
    line-height: 1.2;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--accent2));
    border-radius: 4px;
}

.section-header p {
    font-size: 18px;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.9;
    margin-top: 12px;
}

/* ===== LIGHT SECTIONS ===== */
.section-light {
    background: var(--light-bg);
    color: var(--light-text);
    border-top: 1px solid var(--light-border);
}

.section-light .section-header h2 {
    color: var(--light-text);
}

.section-light .section-header p {
    color: var(--light-text-sub);
}

.section-light .section-tag {
    background: rgba(99, 102, 241, 0.06);
    border-color: rgba(99, 102, 241, 0.15);
}

.section-light .about-content p {
    color: var(--light-text-sub);
    line-height: 2;
    margin-bottom: 16px;
}

.section-light .product-card,
.section-light .news-card,
.section-light .home-product-card {
    background: var(--light-card);
    border-color: var(--light-border);
    box-shadow: 0 4px 24px rgba(0,0,0,0.04);
}

.section-light .product-card:hover,
.section-light .news-card:hover,
.section-light .home-product-card:hover {
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: 0 20px 60px rgba(99, 102, 241, 0.1);
}

.section-light .product-card h4,
.section-light .home-product-card h3,
.section-light .news-card h4 {
    color: var(--light-text);
}

.section-light .product-card p,
.section-light .home-product-card p,
.section-light .news-card p {
    color: var(--light-text-sub);
}

.section-light .product-icon {
    background: rgba(99, 102, 241, 0.06);
    border-color: rgba(99, 102, 241, 0.12);
}

.section-light .home-product-card .icon {
    background: linear-gradient(135deg, rgba(99,102,241,0.08), rgba(6,182,212,0.06));
    border-color: rgba(99, 102, 241, 0.12);
}

.section-light .home-product-card .brands span {
    background: var(--light-bg);
    border-color: var(--light-border);
    color: var(--light-text-sub);
}

.section-light .home-product-card .link {
    color: var(--accent);
}

.section-light .news-image {
    background: linear-gradient(135deg, #eef2ff, #e0f2fe);
}

.section-light .category-title h3 {
    color: var(--light-text);
}

.section-light .category-title h3 span {
    color: var(--light-text-sub);
}

.section-light .about-content h2 {
    color: var(--light-text);
}

.section-light .about-feature {
    background: var(--light-card);
    border-color: var(--light-border);
}

.section-light .about-feature:hover {
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.08);
}

.section-light .about-feature h4 {
    color: var(--light-text);
}

.section-light .about-feature p {
    color: var(--light-text-sub);
}

.section-light .about-visual-item {
    background: var(--light-card);
    border-color: var(--light-border);
}

.section-light .about-visual-item:hover {
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: 0 12px 40px rgba(99, 102, 241, 0.1);
}

.section-light .about-visual-item .label {
    color: var(--light-text-sub);
}

.section-light .contact-info {
    background: linear-gradient(160deg, var(--dark2), var(--dark3));
    color: var(--white);
}

.section-light .contact-form {
    background: var(--light-card);
    border-color: var(--light-border);
    box-shadow: 0 8px 40px rgba(0,0,0,0.06);
}

.section-light .contact-form h3 {
    color: var(--light-text);
}

.section-light .form-group label {
    color: var(--light-text);
}

.section-light .form-group input,
.section-light .form-group textarea,
.section-light .form-group select {
    background: var(--light-bg);
    border-color: var(--light-border);
    color: var(--light-text);
}

.section-light .form-group input:focus,
.section-light .form-group textarea:focus,
.section-light .form-group select:focus {
    border-color: var(--accent);
    background: var(--light-card);
}

/* ===== PRODUCTS ===== */
.product-category {
    margin-bottom: 100px;
}

.product-category:last-child {
    margin-bottom: 0;
}

.category-title {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 48px;
}

.category-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    box-shadow: 0 8px 32px rgba(99, 102, 241, 0.3);
}

.category-title h3 {
    font-size: 32px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.category-title h3 span {
    display: block;
    font-size: 15px;
    font-weight: 400;
    color: var(--gray);
    margin-top: 4px;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.product-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius);
    padding: 44px 32px;
    text-align: center;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(99,102,241,0.08), rgba(6,182,212,0.04));
    opacity: 0;
    transition: opacity 0.5s;
}

.product-card:hover {
    transform: translateY(-10px);
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: 0 24px 64px rgba(99, 102, 241, 0.15);
}

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

.product-icon {
    width: 76px;
    height: 76px;
    margin: 0 auto 24px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 34px;
    position: relative;
    z-index: 1;
    transition: all 0.4s;
}

.product-card:hover .product-icon {
    transform: scale(1.1) rotate(-3deg);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.2);
}

.product-card h4 {
    font-size: 19px;
    font-weight: 700;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}

.product-card p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.8;
    position: relative;
    z-index: 1;
}

/* ===== NEWS ===== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.news-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.news-card:hover {
    transform: translateY(-8px);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.news-image {
    height: 220px;
    background: linear-gradient(135deg, var(--dark2), var(--dark3));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 56px;
    position: relative;
    overflow: hidden;
}

.news-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(99,102,241,0.1), rgba(6,182,212,0.05));
}

.news-body {
    padding: 32px;
}

.news-date {
    font-size: 13px;
    color: var(--accent2);
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.news-card h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 14px;
    line-height: 1.5;
}

.news-card p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.8;
}

/* ===== ABOUT ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 80px;
    align-items: center;
}

.about-content h2 {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 900;
    margin-bottom: 32px;
    letter-spacing: -1px;
}

.about-content p {
    font-size: 16px;
    line-height: 2;
    color: var(--gray);
    margin-bottom: 20px;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 48px;
}

.about-feature {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 24px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 16px;
    transition: all 0.4s;
}

.about-feature:hover {
    border-color: rgba(99, 102, 241, 0.3);
    background: rgba(99, 102, 241, 0.05);
    transform: translateY(-4px);
}

.about-feature-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: linear-gradient(135deg, rgba(99,102,241,0.15), rgba(6,182,212,0.1));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
}

.about-feature h4 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 4px;
}

.about-feature p {
    font-size: 13px;
    color: var(--gray);
    margin-bottom: 0;
    line-height: 1.5;
}

.about-visual {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.about-visual-item {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius);
    padding: 44px 24px;
    text-align: center;
    transition: all 0.4s;
}

.about-visual-item:hover {
    border-color: rgba(99, 102, 241, 0.4);
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(99, 102, 241, 0.1);
}

.about-visual-item:first-child {
    grid-column: span 2;
}

.about-visual-item .number {
    font-size: 44px;
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.about-visual-item .label {
    font-size: 14px;
    color: var(--gray);
}

/* ===== HOMEPAGE CARDS ===== */
.home-products {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.home-product-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius);
    padding: 52px 36px;
    text-align: center;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.home-product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent2));
    opacity: 0;
    transition: opacity 0.4s;
}

.home-product-card:hover {
    transform: translateY(-10px);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: 0 24px 64px rgba(99, 102, 241, 0.12);
}

.home-product-card:hover::before {
    opacity: 1;
}

.home-product-card .icon {
    width: 84px;
    height: 84px;
    margin: 0 auto 28px;
    background: linear-gradient(135deg, rgba(99,102,241,0.12), rgba(6,182,212,0.08));
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 38px;
    transition: all 0.4s;
}

.home-product-card:hover .icon {
    transform: scale(1.1) rotate(-3deg);
    box-shadow: 0 12px 32px rgba(99, 102, 241, 0.2);
}

.home-product-card h3 {
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 16px;
}

.home-product-card p {
    font-size: 15px;
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 24px;
}

.home-product-card .brands {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.home-product-card .brands span {
    padding: 6px 16px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 20px;
    font-size: 12px;
    color: var(--gray-light);
    font-weight: 500;
}

.home-product-card .link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 28px;
    color: var(--accent);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
}

.home-product-card .link:hover {
    gap: 14px;
    color: var(--accent2);
}

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

.contact-info {
    padding: 52px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius);
}

.contact-info h3 {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 36px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    margin-bottom: 32px;
}

.contact-item-icon {
    width: 52px;
    height: 52px;
    min-width: 52px;
    background: linear-gradient(135deg, rgba(99,102,241,0.12), rgba(6,182,212,0.08));
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
}

.contact-item h4 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 4px;
}

.contact-item p {
    font-size: 14px;
    color: var(--gray);
}

.contact-form {
    padding: 52px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius);
}

.contact-form h3 {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 36px;
}

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--gray-light);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 16px 20px;
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 14px;
    font-size: 15px;
    transition: all 0.3s;
    font-family: inherit;
    background: rgba(255,255,255,0.04);
    color: var(--white);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
    background: rgba(99, 102, 241, 0.05);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

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

.form-group select option {
    background: var(--dark2);
    color: var(--white);
}

.form-group textarea {
    height: 130px;
    resize: vertical;
}

/* ===== FOOTER ===== */
.footer {
    position: relative;
    z-index: 2;
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 80px 0 40px;
    background: rgba(3, 7, 18, 0.8);
}

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

.footer-brand h3 {
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 20px;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    color: var(--gray);
}

.footer-col h4 {
    font-size: 13px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.footer-col ul {
    list-style: none;
}

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

.footer-col ul li a {
    color: var(--gray);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s;
}

.footer-col ul li a:hover {
    color: var(--white);
    padding-left: 6px;
}

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid rgba(255,255,255,0.06);
    text-align: center;
    font-size: 13px;
    color: rgba(148, 163, 184, 0.5);
}

/* ===== LANGUAGE ===== */
[data-lang="en"] { display: none; }
body.en [data-lang="en"] { display: block; }
body.en [data-lang="zh"] { display: none; }
body.en [data-lang-inline="en"] { display: inline; }
body.en [data-lang-inline="zh"] { display: none; }
[data-lang-inline="en"] { display: none; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .hero-stats { grid-template-columns: repeat(2, 1fr); }
    .about-grid { grid-template-columns: 1fr; gap: 48px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
    .home-products { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .container { padding: 0 24px; }
    .nav-links { display: none; }
    .mobile-menu-btn { display: flex; }
    .hero { padding: 120px 0 80px; }
    .hero-stats { grid-template-columns: 1fr 1fr; }
    .hero-stat .num { font-size: 32px; }
    .page-banner { min-height: 50vh; padding: 120px 0 60px; }
    .news-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .about-features { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 36px; }
    .section { padding: 80px 0; }
    .section-header { margin-bottom: 48px; }
    .scroll-indicator { display: none; }
}

/* ===== SCROLL ANIMATIONS ===== */
.fade-in {
    opacity: 0;
    transform: translateY(50px);
    transition: all 1s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.fade-in-left {
    opacity: 0;
    transform: translateX(-60px);
    transition: all 1s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.fade-in-right {
    opacity: 0;
    transform: translateX(60px);
    transition: all 1s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.scale-in {
    opacity: 0;
    transform: scale(0.9);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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