/* --- CSS Variables --- */
:root {
    --primary: #0D1B2A;
    --primary-light: #1B3A5C;
    --primary-mid: #152D47;
    --accent: #C9A961;
    --accent-light: #DCC48E;
    --accent-dark: #B8943F;
    --accent-glow: rgba(201, 169, 97, 0.2);
    --bg-light: #F8F7F5;
    --bg-warm: #F3F0EB;
    --bg-white: #FFFFFF;
    --text-primary: #1A1A1A;
    --text-secondary: #5A5A5A;
    --text-light: #999999;
    --text-on-dark: #FFFFFF;
    --border-color: #E8E6E1;
    --border-light: #F0EEE9;
    --shadow-xs: 0 1px 3px rgba(13, 27, 42, 0.04);
    --shadow-sm: 0 2px 12px rgba(13, 27, 42, 0.06);
    --shadow-md: 0 6px 24px rgba(13, 27, 42, 0.09);
    --shadow-lg: 0 12px 48px rgba(13, 27, 42, 0.12);
    --shadow-xl: 0 20px 60px rgba(13, 27, 42, 0.16);
    --transition-fast: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
    --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    --max-width: 1200px;
    --header-height: 60px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-primary);
    background: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul { list-style: none; }

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 32px;
}

.section {
    padding: 120px 0;
    position: relative;
}

.section-alt {
    background: var(--bg-light);
}

/* --- Decorative Section Divider --- */
.section-divider {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    margin: 0 auto 20px;
}

/* --- Section Header --- */
.section-header {
    text-align: center;
    margin-bottom: 72px;
}

.section-header .section-label {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 40px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 20px;
    letter-spacing: 1px;
    line-height: 1.3;
}

.section-header .section-divider {
    margin-bottom: 20px;
}

.section-header p {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 620px;
    margin: 0 auto;
    line-height: 1.9;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 15px 40px;
    font-family: var(--font-sans);
    font-size: 15px;
    font-weight: 600;
    border: none;
    border-radius: 2px;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: var(--bg-white);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-light) 0%, var(--accent) 100%);
    box-shadow: 0 8px 24px rgba(201, 169, 97, 0.35);
    transform: translateY(-2px);
    color: var(--bg-white);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--bg-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-white {
    background: var(--bg-white);
    color: var(--primary);
}

.btn-white:hover {
    background: var(--accent);
    color: var(--bg-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-sm {
    padding: 10px 24px;
    font-size: 13px;
}

.btn-lg {
    padding: 18px 80px;
    font-size: 17px;
}

/* ============================================
   HEADER
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    transition: all var(--transition-normal);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

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

.header-logo .logo-icon {
    width: 80px;
    height: 80px;
    border-radius: 3px;
    object-fit: contain;
}

.header-logo .logo-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 2px;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 44px;
}

.header-nav a {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
    position: relative;
    padding: 6px 0;
    transition: color var(--transition-fast);
    letter-spacing: 1px;
}

.header-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--accent);
    transition: width var(--transition-normal);
}

.header-nav a:hover,
.header-nav a.active {
    color: var(--accent);
}

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

.header-phone {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--accent);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.header-phone svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

/* Language switcher */
.lang-switch {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.5px;
    padding: 6px 12px;
    border: 1px solid var(--border-color);
    border-radius: 3px;
    transition: all var(--transition-normal);
    margin-left: 4px;
}

.lang-switch svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
    flex-shrink: 0;
}

.lang-switch:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: rgba(201, 169, 97, 0.08);
}

/* Hamburger (hidden on desktop) */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 1.5px;
    background: var(--primary);
    transition: all var(--transition-normal);
    border-radius: 1px;
}

/* ============================================
   HERO / CAROUSEL
   ============================================ */
.hero-carousel {
    position: relative;
    height: 100vh;
    min-height: 620px;
    max-height: 960px;
    overflow: hidden;
    margin-top: 0;
}

.page-banner-video + .hero-carousel {
    margin-top: 0;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-image: linear-gradient(135deg, #0D1B2A 0%, #1B3A5C 100%);
    transform: scale(1.05);
    transition: transform 8s ease;
}

.hero-slide.active .hero-bg {
    transform: scale(1);
}

.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        180deg,
        rgba(13, 27, 42, 0.55) 0%,
        rgba(13, 27, 42, 0.4) 40%,
        rgba(13, 27, 42, 0.65) 100%
    );
}

/* Hero decorative particles (CSS-only) */
.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 24px;
    max-width: 860px;
}

.hero-content h1 {
    font-size: 58px;
    font-weight: 700;
    color: var(--text-on-dark);
    margin-bottom: 24px;
    letter-spacing: 8px;
    line-height: 1.25;
    animation: heroFadeUp 0.8s ease backwards;
    animation-delay: 0.3s;
}

.hero-slide.active .hero-content h1 {
    animation: heroFadeUp 0.8s ease backwards;
    animation-delay: 0.3s;
}

.hero-content p {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 44px;
    line-height: 1.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    animation: heroFadeUp 0.8s ease backwards;
    animation-delay: 0.5s;
}

.hero-slide.active .hero-content p {
    animation: heroFadeUp 0.8s ease backwards;
    animation-delay: 0.5s;
}

.hero-content .btn {
    animation: heroFadeUp 0.8s ease backwards;
    animation-delay: 0.7s;
}

.hero-slide.active .hero-content .btn {
    animation: heroFadeUp 0.8s ease backwards;
    animation-delay: 0.7s;
}

@keyframes heroFadeUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll hint */
.hero-scroll-hint {
    position: absolute;
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 12px;
    letter-spacing: 2px;
    animation: scrollBounce 2s ease infinite;
}

.hero-scroll-hint .scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, rgba(201, 169, 97, 0.6), transparent);
}

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

/* Carousel indicators */
.carousel-indicators {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 14px;
    z-index: 3;
}

.carousel-indicators button {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: 1.5px solid rgba(255, 255, 255, 0.45);
    background: transparent;
    cursor: pointer;
    transition: all var(--transition-normal);
    padding: 0;
}

.carousel-indicators button.active {
    background: var(--accent);
    border-color: var(--accent);
    transform: scale(1.3);
    box-shadow: 0 0 12px rgba(201, 169, 97, 0.4);
}

/* ============================================
   CORE VALUES
   ============================================ */
.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}

.value-card {
    background: var(--bg-white);
    padding: 48px 28px 40px;
    border-radius: 2px;
    text-align: center;
    box-shadow: var(--shadow-xs);
    transition: all var(--transition-spring);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.value-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

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

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

.value-card .card-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: 0;
}

.value-card .card-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(13, 27, 42, 0.45);
}

.value-card:hover .card-bg {
    opacity: 1;
}

.value-card .icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
    position: relative;
    z-index: 1;
}

.value-card .icon img {
    width: 62px;
    height: 62px;
    object-fit: contain;
}

.value-card:hover .icon {
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(6px);
}

.value-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
    letter-spacing: 1px;
    position: relative;
    z-index: 1;
    transition: color var(--transition-normal);
}

.value-card:hover h3 {
    color: var(--text-on-dark);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.value-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
    position: relative;
    z-index: 1;
    transition: color var(--transition-normal);
}

.value-card:hover p {
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

/* ============================================
   PRODUCT PREVIEW / PRODUCT CARDS
   ============================================ */
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}

.product-grid-wide {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.product-card {
    background: var(--bg-white);
    border-radius: 2px;
    overflow: hidden;
    box-shadow: var(--shadow-xs);
    transition: all var(--transition-spring);
    border: 1px solid var(--border-light);
    position: relative;
}

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

.product-card .image-wrap {
    position: relative;
    width: 100%;
    padding-top: 100%;
    background: var(--bg-light);
    overflow: hidden;
}

.product-card .image-wrap img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.product-card:hover .image-wrap img {
    transform: scale(1.06);
}

.product-card .image-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 8px;
    background: linear-gradient(160deg, var(--primary) 0%, var(--primary-mid) 100%);
    color: var(--text-on-dark);
}

.product-card .image-placeholder svg {
    width: 44px;
    height: 44px;
    fill: var(--accent);
    opacity: 0.7;
}

.product-card .image-placeholder span {
    font-size: 28px;
    font-weight: 700;
    color: var(--accent);
    opacity: 0.5;
    letter-spacing: 2px;
}

.product-card .info {
    padding: 24px 20px 16px;
}

.product-card .info h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
    letter-spacing: 0.5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.product-card .info h3 a:hover {
    color: var(--accent);
}

.product-card .info .category-label {
    font-size: 12px;
    color: var(--accent);
    margin-bottom: 8px;
    display: inline-block;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.product-card .info p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-card .info .specs {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--border-light);
    display: flex;
    flex-wrap: nowrap;
    gap: 10px;
    font-size: 12px;
    color: var(--text-light);
    overflow: hidden;
}

.product-card .info .specs span {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
}

.product-card .card-actions {
    padding: 0 20px 24px;
    display: flex;
    gap: 10px;
}

/* ============================================
   PRODUCT SERIES (alternating full-width)
   ============================================ */
.series-section-wrap {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 32px;
}

.series-row {
    display: flex;
    align-items: stretch;
    min-height: 400px;
    gap: 10px;
}

.series-row.reverse {
    flex-direction: row-reverse;
}

.series-visual {
    flex: 0 0 52%;
    position: relative;
    overflow: hidden;
    background: var(--primary-mid);
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    border-radius: 4px;
}

.series-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
}

.series-visual .visual-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(13, 27, 42, 0.35) 0%, rgba(13, 27, 42, 0.15) 100%);
    z-index: 1;
}

.series-visual .visual-label {
    position: relative;
    z-index: 2;
    font-size: 48px;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.18);
    letter-spacing: 6px;
    text-transform: uppercase;
    pointer-events: none;
    user-select: none;
}

a.series-visual {
    text-decoration: none;
    color: inherit;
    cursor: pointer;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

a.series-visual:hover {
    transform: scale(1.02);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

a.series-visual:hover .visual-overlay {
    background: linear-gradient(135deg, rgba(13, 27, 42, 0.20) 0%, rgba(13, 27, 42, 0.05) 100%);
}

.series-detail {
    flex: 0 0 48%;
    display: flex;
    align-items: center;
    padding: 64px 72px;
    background: var(--bg-white);
}

.series-detail-inner {
    max-width: 520px;
}

.series-detail .series-en {
    display: block;
    font-size: 13px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.series-detail h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 20px;
    letter-spacing: 2px;
    line-height: 1.3;
}

.series-detail .series-desc {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 32px;
    max-width: 440px;
}

.series-detail .series-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.series-detail .series-tag {
    display: inline-flex;
    align-items: center;
    padding: 8px 18px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-light);
    border-radius: 2px;
    border: 1px solid transparent;
    transition: all var(--transition-fast);
    letter-spacing: 0.5px;
    cursor: default;
}

.series-detail .series-tag:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--bg-white);
}

/* Alternating background for visual rhythm */
.series-row:nth-child(odd) .series-detail {
    background: var(--bg-white);
}
.series-row:nth-child(even) .series-detail {
    background: var(--bg-light);
}

@media (max-width: 1024px) {
    .series-section-wrap {
        gap: 2px;
    }
    .series-row,
    .series-row.reverse {
        flex-direction: column;
        min-height: auto;
    }
    .series-visual {
        flex: 0 0 280px;
        min-height: 280px;
    }
    .series-detail {
        flex: auto;
        padding: 48px 32px;
    }
    .series-detail h2 {
        font-size: 28px;
    }
}

/* ============================================
   STATS / STRENGTH
   ============================================ */
.stats-section {
    background: var(--primary);
    color: var(--text-on-dark);
    position: relative;
    overflow: hidden;
}

.stats-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(201, 169, 97, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(201, 169, 97, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.stats-section .container {
    position: relative;
    z-index: 1;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    text-align: center;
}

.stat-item {
    padding: 20px;
    position: relative;
}

.stat-item::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, transparent, rgba(255, 255, 255, 0.15), transparent);
}

.stat-item:last-child::after {
    display: none;
}

.stat-item .number {
    font-size: 56px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 10px;
    line-height: 1.1;
    letter-spacing: -1px;
}

.stat-item .number .suffix {
    font-size: 28px;
    font-weight: 600;
}

.stat-item .label {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 1px;
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
    text-align: center;
    padding: 100px 0;
    background: linear-gradient(160deg, var(--primary) 0%, var(--primary-mid) 100%);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 70%, rgba(201, 169, 97, 0.04) 0%, transparent 40%);
    pointer-events: none;
}

.cta-section .container {
    position: relative;
    z-index: 1;
}

.cta-section h2 {
    font-size: 40px;
    font-weight: 700;
    color: var(--text-on-dark);
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.cta-section p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 40px;
    line-height: 1.8;
}

/* ============================================
   PAGE BANNER (inner pages)
   ============================================ */
.page-banner {
    margin-top: var(--header-height);
    padding: 140px 0 90px;
    background: linear-gradient(160deg, var(--primary) 0%, var(--primary-mid) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-banner::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0.4;
}

.page-banner::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(201, 169, 97, 0.04) 0%, transparent 60%);
    pointer-events: none;
    z-index: 0;
}

.page-banner h1 {
    font-size: 48px;
    font-weight: 700;
    color: var(--text-on-dark);
    margin-bottom: 16px;
    letter-spacing: 4px;
    position: relative;
    z-index: 1;
}

.page-banner p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.65);
    max-width: 520px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    line-height: 1.8;
}

/* Video background banner */
.page-banner-video {
    height: 95vh;
    min-height: 520px;
    padding: 0;
    background: #000;
    margin-bottom: 0;
}

/* Video hero text overlay */
.video-hero-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 10;
    text-align: center;
    padding: 0 32px;
    pointer-events: none;
}

.video-hero-title {
    font-size: 48px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 2px;
    line-height: 1.3;
    margin-bottom: 16px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
    max-width: 900px;
}

.video-hero-subtitle {
    font-size: 22px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.85);
    letter-spacing: 6px;
    text-shadow: 0 1px 10px rgba(0, 0, 0, 0.3);
}

/* Scroll-down mouse indicator */
.scroll-mouse {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    z-index: 10;
    pointer-events: none;
}

.mouse-outline {
    width: 26px;
    height: 40px;
    border-radius: 13px;
    border: 2px solid rgba(255, 255, 255, 0.7);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 8px;
}

.mouse-wheel {
    display: block;
    width: 4px;
    height: 8px;
    background: #fff;
    border-radius: 2px;
    animation: mouseWheel 1.6s ease-in-out infinite;
}

@keyframes mousePulse {
    0%   { transform: scale(1); }
    50%  { transform: scale(1.25); }
    100% { transform: scale(1); }
}

@keyframes mouseWheel {
    0%   { opacity: 1; transform: translateY(0); }
    30%  { opacity: 1; transform: translateY(8px); }
    60%  { opacity: 0; transform: translateY(12px); }
    61%  { opacity: 0; transform: translateY(0); }
    100% { opacity: 1; transform: translateY(0); }
}

.scroll-arrow {
    display: block;
    width: 12px;
    height: 12px;
    border-right: 2px solid rgba(255, 255, 255, 0.7);
    border-bottom: 2px solid rgba(255, 255, 255, 0.7);
    transform: rotate(45deg);
    animation: scrollArrow 1.6s ease-in-out infinite;
    animation-delay: 0.5s;
}

@keyframes scrollArrow {
    0%   { opacity: 0; transform: translateY(0); }
    40%  { opacity: 1; }
    80%  { opacity: 0; transform: translateY(8px); }
    100% { opacity: 0; transform: translateY(0); }
}

/* Video loading shimmer */
.page-banner-video::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0D1B2A 0%, #1B3A5C 50%, #0D1B2A 100%);
    background-size: 200% 200%;
    z-index: 0;
    animation: videoLoading 2s ease-in-out infinite;
}

@keyframes videoLoading {
    0% { background-position: 0% 50%; opacity: 0.8; }
    50% { background-position: 100% 50%; opacity: 1; }
    100% { background-position: 0% 50%; opacity: 0.8; }
}

.page-banner-video video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
    pointer-events: none;
}

.page-banner-video .video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(160deg, rgba(16, 34, 51, 0.75) 0%, rgba(28, 55, 82, 0.65) 100%);
    z-index: 0;
}

/* ============================================
   PRODUCTS PAGE - Filter
   ============================================ */
.product-filter {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 56px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 30px;
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 500;
    border: 1.5px solid var(--border-color);
    border-radius: 2px;
    background: var(--bg-white);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-normal);
    letter-spacing: 1px;
}

.filter-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(201, 169, 97, 0.03);
}

.filter-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--text-on-dark);
    box-shadow: var(--shadow-sm);
}

/* ============================================
   BREADCRUMB
   ============================================ */
.breadcrumb {
    margin-top: var(--header-height);
    padding: 20px 0;
    background: var(--bg-light);
    border-bottom: 1px solid var(--border-light);
}

.breadcrumb .container {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
}

.breadcrumb a {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

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

.breadcrumb .breadcrumb-sep {
    color: var(--text-light);
}

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

/* ============================================
   PRODUCT DETAIL
   ============================================ */
.product-detail-section {
    padding: 60px 0 100px;
}

.product-detail-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.product-detail-wrap .gallery {
    background: var(--bg-light);
    border-radius: 2px;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: sticky;
    top: calc(var(--header-height) + 40px);
    box-shadow: var(--shadow-md);
}

.product-detail-wrap .gallery img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-detail-wrap .gallery-placeholder {
    text-align: center;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(160deg, var(--primary) 0%, var(--primary-mid) 100%);
    color: var(--text-on-dark);
}

.product-detail-wrap .gallery-placeholder svg {
    width: 80px;
    height: 80px;
    fill: var(--accent);
    opacity: 0.5;
    margin-bottom: 16px;
}

.product-detail-wrap .gallery-placeholder span {
    font-size: 48px;
    font-weight: 700;
    color: var(--accent);
    opacity: 0.25;
}

.product-info h1 {
    font-size: 38px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
    letter-spacing: 2px;
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.product-info .category-tag {
    display: inline-block;
    font-size: 12px;
    color: var(--accent-dark);
    margin-bottom: 16px;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    background: rgba(201, 169, 97, 0.08);
    padding: 4px 12px;
    border-radius: 2px;
}

.product-info .description {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 2;
    margin-bottom: 40px;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 44px;
}

.specs-table th,
.specs-table td {
    padding: 16px 24px;
    text-align: left;
    font-size: 14px;
    border-bottom: 1px solid var(--border-light);
}

.specs-table th {
    background: var(--bg-light);
    color: var(--primary);
    font-weight: 600;
    width: 100px;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-size: 12px;
}

.specs-table td {
    color: var(--text-secondary);
    font-weight: 500;
}

.product-actions {
    display: flex;
    gap: 16px;
}

@media (max-width: 1024px) {
    .product-detail-wrap {
        gap: 48px;
    }
    .product-detail-wrap .gallery {
        position: static;
    }
    .product-info h1 {
        font-size: 30px;
    }
}

@media (max-width: 768px) {
    .product-detail-wrap {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .product-detail-wrap .gallery {
        aspect-ratio: 4/3;
    }
    .product-actions {
        flex-direction: column;
    }
}

/* ============================================
   ABOUT PAGE — Warm Modern Luxury
   ============================================ */

/* --- Hero (Alt) --- */
.about-hero-alt {
    padding: 100px 0 80px;
    background: var(--bg-warm);
}

.about-hero-alt-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-hero-alt-text {
    max-width: 540px;
}

.ah-eyebrow {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 5px;
    text-transform: uppercase;
    color: var(--accent-dark);
    margin-bottom: 20px;
}

.about-hero-alt-text h1 {
    font-size: clamp(34px, 5vw, 52px);
    font-weight: 700;
    color: var(--primary);
    line-height: 1.2;
    letter-spacing: 1px;
    margin-bottom: 24px;
}

.ah-line {
    width: 60px;
    height: 2px;
    background: var(--accent);
    margin-bottom: 24px;
}

.about-hero-alt-text p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.9;
}

.about-hero-alt-video video {
    width: 100%;
    border-radius: 6px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.1);
}

/* --- Stats Strip --- */
.about-stats-strip {
    padding: 0;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-light);
}

.stats-strip-row {
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 40px 0;
}

.ss-item {
    text-align: center;
}

.ss-num {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
    letter-spacing: 2px;
    margin-bottom: 6px;
}

.ss-label {
    font-size: 13px;
    color: var(--text-secondary);
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.ss-sep {
    display: block;
    width: 1px;
    height: 48px;
    background: var(--border-light);
}

/* --- Story --- */
.about-story {
    padding: 100px 0;
    background: var(--bg-white);
}

.story-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.9fr;
    gap: 80px;
    align-items: start;
}

.story-text h2 {
    font-size: 34px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 28px;
    letter-spacing: 1px;
}

.story-text p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 2;
    margin-bottom: 18px;
}

.story-global {
    background: var(--bg-warm);
    padding: 40px 36px;
    border-radius: 6px;
}

.story-global h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 24px;
    letter-spacing: 1px;
}

.global-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.global-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.gi-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    flex-shrink: 0;
}

.gi-body strong {
    display: block;
    font-size: 15px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 2px;
}

.gi-body span {
    font-size: 13px;
    color: var(--text-secondary);
}

/* --- Timeline V2 --- */
.about-timeline-v2 {
    padding: 100px 0;
    background: var(--bg-warm);
}

.tlv2-list {
    max-width: 880px;
    margin: 48px auto 0;
}

.tlv2-item {
    display: flex;
    gap: 40px;
    padding-bottom: 48px;
    position: relative;
}

.tlv2-item:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 51px;
    top: 52px;
    bottom: 0;
    width: 1px;
    background: linear-gradient(to bottom, var(--accent), var(--border-light));
}

.tlv2-item:last-child {
    padding-bottom: 0;
}

.tlv2-marker {
    flex-shrink: 0;
    width: 104px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 2px;
    border-radius: 3px;
}

.tlv2-body h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.tlv2-body p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.9;
}

/* --- Production + Quality Combined --- */
.about-prod-quality {
    padding: 100px 0;
    background: var(--bg-white);
}

.pq-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-top: 48px;
}

.pq-card {
    padding: 40px 28px 36px;
    border: 1px solid var(--border-light);
    border-radius: 6px;
    transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}

.pq-card:hover {
    border-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.06);
}

.pq-icon {
    margin-bottom: 18px;
}

.pq-icon svg {
    width: 32px;
    height: 32px;
    fill: var(--accent);
}

.pq-card h4 {
    font-size: 17px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
    letter-spacing: 0.5px;
}

.pq-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* --- Brand Partners --- */
.about-brands {
    padding: 80px 0;
    background: #000;
}

.about-brands .section-header h2 {
    color: #fff;
}

.about-brands .section-header p {
    color: rgba(255,255,255,0.6);
}

.brands-scroll-wrap {
    margin-top: 48px;
    overflow: hidden;
    background: #000;
    padding: 32px 0;
}

.brands-scroll-track {
    display: flex;
    width: max-content;
    background: #000;
}

.brands-scroll-track img {
    display: block;
    height: 420px;
    width: auto;
    max-width: none;
}

/* --- CTA Alt --- */
.about-cta-alt {
    padding: 100px 0;
    text-align: center;
    background: var(--bg-warm);
}

.about-cta-alt h2 {
    font-size: clamp(30px, 4vw, 42px);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 14px;
    letter-spacing: 1px;
}

.about-cta-alt p {
    font-size: 17px;
    color: var(--text-secondary);
    margin-bottom: 36px;
    line-height: 1.7;
}

.about-cta-alt .btn {
    font-size: 18px;
    padding: 16px 52px;
}

/* ============================================
   CONTACT PAGE
   ============================================ */
.contact-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 72px;
}

.contact-info h3 {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 36px;
    letter-spacing: 1px;
}

.contact-info-item {
    display: flex;
    gap: 18px;
    margin-bottom: 32px;
    padding: 24px;
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

.contact-info-item:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-sm);
}

.contact-info-item svg {
    width: 22px;
    height: 22px;
    fill: var(--accent);
    flex-shrink: 0;
    margin-top: 3px;
}

.contact-info-item h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 6px;
    letter-spacing: 0.5px;
}

.contact-info-item p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.contact-info-item .phone-large {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 1px;
}

/* Contact form */
.contact-form-wrap {
    background: var(--bg-light);
    border-radius: 2px;
    padding: 52px;
    border: 1px solid var(--border-light);
}

.contact-form-wrap h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.contact-form-wrap .form-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 36px;
    line-height: 1.6;
}

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

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.form-group label .required {
    color: #c0392b;
    margin-left: 2px;
}

.form-control {
    width: 100%;
    padding: 14px 18px;
    font-family: var(--font-sans);
    font-size: 14px;
    border: 1.5px solid var(--border-color);
    border-radius: 2px;
    background: var(--bg-white);
    color: var(--text-primary);
    transition: all var(--transition-fast);
    outline: none;
}

.form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-control::placeholder {
    color: var(--text-light);
}

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

.form-error {
    font-size: 12px;
    color: #c0392b;
    margin-top: 6px;
    display: none;
}

.form-control.error {
    border-color: #c0392b;
}

.form-control.error ~ .form-error {
    display: block;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--primary);
    color: var(--text-on-dark);
    padding: 72px 0 32px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0.3;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: 32px;
}

.footer-brand h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 18px;
    letter-spacing: 2px;
}

.footer-brand p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.9;
    max-width: 320px;
}

.footer-col h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 22px;
    color: var(--accent);
    letter-spacing: 1px;
}

.footer-col a {
    display: block;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.55);
    margin-bottom: 14px;
    transition: all var(--transition-fast);
    letter-spacing: 0.5px;
}

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

.footer-contact-item {
    display: flex;
    gap: 12px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.55);
    margin-bottom: 14px;
    font-style: normal;
    transition: color 0.2s;
}

a.footer-contact-item:hover {
    color: var(--accent);
    padding-left: 0;
}

.footer-contact-item svg {
    width: 16px;
    height: 16px;
    fill: var(--accent);
    flex-shrink: 0;
    margin-top: 2px;
    opacity: 0.7;
}

.footer-bottom {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 24px;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.35);
    letter-spacing: 0.5px;
}

.footer-legal {
    display: flex;
    gap: 12px;
}

.footer-legal a {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.3);
    transition: color 0.2s;
}

.footer-legal a:hover {
    color: var(--accent);
    padding-left: 0;
}

/* ============================================
   INQUIRY MODAL
   ============================================ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(13, 27, 42, 0.6);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    background: var(--bg-white);
    border-radius: 4px;
    padding: 52px;
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    position: relative;
    animation: modalIn 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: translateY(24px) scale(0.97);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    background: var(--bg-light);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    color: var(--text-secondary);
}

.modal-close:hover {
    background: var(--primary);
    color: var(--text-on-dark);
}

.modal-close svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

.modal-content h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.modal-content .modal-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

/* Toast notification */
.toast {
    position: fixed;
    top: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(-20px);
    background: var(--bg-white);
    border-radius: 4px;
    padding: 22px 36px;
    box-shadow: var(--shadow-xl);
    z-index: 3000;
    opacity: 0;
    transition: all var(--transition-normal);
    pointer-events: none;
    text-align: center;
    min-width: 300px;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast.success {
    border-left: 3px solid #27ae60;
}

.toast.error {
    border-left: 3px solid #c0392b;
}

.toast .toast-icon {
    font-size: 24px;
    margin-bottom: 8px;
}

.toast .toast-message {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
}

/* ============================================
   SCROLL ANIMATION
   ============================================ */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(36px);
    transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Stagger delays for grid children */
.animate-on-scroll.visible .value-card:nth-child(1),
.animate-on-scroll.visible .product-card:nth-child(1),
.animate-on-scroll.visible .stat-item:nth-child(1) { transition-delay: 0ms; }

.animate-on-scroll.visible .value-card:nth-child(2),
.animate-on-scroll.visible .product-card:nth-child(2),
.animate-on-scroll.visible .stat-item:nth-child(2) { transition-delay: 100ms; }

.animate-on-scroll.visible .value-card:nth-child(3),
.animate-on-scroll.visible .product-card:nth-child(3),
.animate-on-scroll.visible .stat-item:nth-child(3) { transition-delay: 200ms; }

.animate-on-scroll.visible .value-card:nth-child(4),
.animate-on-scroll.visible .product-card:nth-child(4),
.animate-on-scroll.visible .stat-item:nth-child(4) { transition-delay: 300ms; }

/* ============================================
   LOADING SPINNER
   ============================================ */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

.btn.loading {
    pointer-events: none;
}

/* ============================================
   MAP SECTION
   ============================================ */
.map-section {
    margin-top: 32px;
    padding-top: 32px;
    border-top: 1px solid var(--border-light);
}

.amap-container {
    width: 100%;
    height: 280px;
    border-radius: 2px;
    border: 1px solid var(--border-light);
}

/* ============================================
   SCROLL-TO-TOP BUTTON
   ============================================ */
.scroll-top-btn {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1.5px solid var(--accent);
    background: var(--bg-white);
    color: var(--accent);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.scroll-top-btn.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top-btn:hover {
    background: var(--accent);
    color: var(--bg-white);
    box-shadow: 0 8px 24px rgba(201, 169, 97, 0.35);
    transform: translateY(-3px);
}

.scroll-top-btn svg {
    width: 18px;
    height: 18px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2.5;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .product-grid-wide {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .about-hero-alt-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .about-hero-alt-video { order: -1; }
    .story-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    .stats-strip-row { flex-wrap: wrap; gap: 24px; }
    .ss-sep { display: none; }
    .tlv2-item { flex-direction: column; gap: 16px; }
    .tlv2-item:not(:last-child)::after { left: 51px; top: 60px; }
    .brands-scroll-track img { height: 240px; }
    .pq-grid {
        grid-template-columns: 1fr;
    }
    .contact-wrap {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
    .stat-item::after {
        display: none;
    }
    .stat-item:nth-child(2)::after {
        display: block;
    }
    .product-detail-wrap {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    .hero-content h1 {
        font-size: 44px;
        letter-spacing: 5px;
    }
    .section {
        padding: 80px 0;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }
    .header-nav {
        display: none;
    }
    .header-phone {
        display: none;
    }
    .hamburger {
        display: flex;
    }
    .header-nav.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        padding: 24px 24px;
        gap: 18px;
        border-top: 1px solid rgba(0, 0, 0, 0.06);
        box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
    }
    .hero-content h1 {
        font-size: 32px;
        letter-spacing: 4px;
    }
    .hero-content p {
        font-size: 16px;
    }
    .section-header h2 {
        font-size: 30px;
    }
    .values-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .product-grid {
        grid-template-columns: 1fr;
    }
    .product-grid-wide {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .stat-item::after {
        display: none;
    }
    .contact-form-wrap {
        padding: 32px 24px;
    }
    .section {
        padding: 64px 0;
    }
    .page-banner {
        padding: 100px 0 60px;
    }
    .page-banner-video {
        height: 50vh;
        min-height: 300px;
        padding: 0;
    }
    .video-hero-title {
        font-size: 24px;
        letter-spacing: 1px;
    }
    .video-hero-subtitle {
        font-size: 14px;
        letter-spacing: 3px;
    }
    .scroll-mouse {
        bottom: 24px;
    }
    .mouse-outline {
        width: 22px;
        height: 34px;
        border-radius: 11px;
    }
    .page-banner h1 {
        font-size: 36px;
        letter-spacing: 3px;
    }
    .product-detail-wrap .gallery {
        aspect-ratio: 4/3;
    }
    .modal-content {
        padding: 36px 24px;
        margin: 16px;
    }
    .cta-section h2 {
        font-size: 30px;
    }
    .scroll-top-btn {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
    }
}