/* ==========================================================================
   Vietnam Hong Hua New Material Co., Ltd - Main Stylesheet
   Color Palette: Navy + Gold (matching company brand identity)
   ========================================================================== */

:root {
    --navy-900: #0a1f3a;
    --navy-800: #112d50;
    --navy-700: #1a3a64;
    --navy-600: #244b7e;
    --navy-500: #2e5a93;
    --gold-500: #d4a548;
    --gold-400: #e0b85e;
    --gold-600: #b88a2e;
    --gray-50:  #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-500: #64748b;
    --gray-700: #334155;
    --gray-900: #0f172a;
    --white: #ffffff;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 50px -10px rgba(10, 31, 58, 0.3);
    --radius: 8px;
    --radius-lg: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --container: 1400px;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-display: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    font-size: 18px;
    line-height: 1.75;
    color: var(--gray-700);
    background: var(--white);
    overflow-x: hidden;
}

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

a {
    color: var(--navy-700);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--gold-500);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    color: var(--navy-900);
    line-height: 1.25;
    font-weight: 700;
}

ul { list-style: none; }

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

/* Utility
   ========================================================================== */
.section {
    padding: 120px 0;
}

.section-sm { padding: 80px 0; }
.section-lg { padding: 160px 0; }

.text-gold { color: var(--gold-500); }
.text-navy { color: var(--navy-800); }
.text-muted { color: var(--gray-500); }
.text-center { text-align: center; }

.eyebrow {
    display: inline-block;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--gold-500);
    margin-bottom: 20px;
    position: relative;
    padding-left: 44px;
}

.eyebrow::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    width: 30px;
    height: 2px;
    background: var(--gold-500);
    transform: translateY(-50%);
}

.eyebrow.no-line {
    padding-left: 0;
}

.eyebrow.no-line::before {
    display: none;
}

.section-title {
    font-size: clamp(34px, 4.5vw, 56px);
    font-weight: 800;
    color: var(--navy-900);
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.section-subtitle {
    font-size: 20px;
    color: var(--gray-500);
    max-width: 800px;
    margin: 0 auto 64px;
}

.section-subtitle.left {
    margin-left: 0;
}

/* Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 18px 40px;
    border-radius: var(--radius);
    font-size: 17px;
    font-weight: 600;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    text-decoration: none;
    line-height: 1;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gold-500);
    color: var(--navy-900);
    border-color: var(--gold-500);
}

.btn-primary:hover {
    background: var(--gold-400);
    border-color: var(--gold-400);
    color: var(--navy-900);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--navy-900);
    border-color: var(--white);
}

.btn-outline {
    background: transparent;
    color: var(--navy-800);
    border-color: var(--navy-800);
}

.btn-outline:hover {
    background: var(--navy-800);
    color: var(--white);
}

.btn-arrow::after {
    content: "→";
    transition: transform 0.3s;
}

.btn-arrow:hover::after {
    transform: translateX(4px);
}

/* Header / Navigation
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--navy-900);
    font-weight: 800;
}

.logo-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--navy-800), var(--navy-600));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 18px;
    font-weight: 800;
    position: relative;
    overflow: hidden;
}

.logo-icon::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--gold-500), var(--gold-400));
}

.logo-img {
    height: 72px;
    width: auto;
    display: block;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.logo-name {
    font-size: 20px;
    color: var(--navy-900);
    font-weight: 800;
    letter-spacing: -0.3px;
}

.logo-tag {
    font-size: 12px;
    color: var(--gold-600);
    font-weight: 600;
    letter-spacing: 0.5px;
}

.nav {
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav a {
    padding: 10px 20px;
    color: var(--gray-700);
    font-size: 17px;
    font-weight: 500;
    border-radius: 6px;
    transition: var(--transition);
}

.nav a:hover,
.nav a.active {
    color: var(--navy-900);
    background: var(--gray-100);
}

.nav .nav-cta {
    background: var(--gold-500);
    color: var(--navy-900);
    margin-left: 12px;
    font-weight: 600;
}

.nav .nav-cta:hover {
    background: var(--gold-400);
    color: var(--navy-900);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--navy-900);
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: currentColor;
    margin: 5px 0;
    transition: var(--transition);
}

/* Hero
   ========================================================================== */
.hero {
    position: relative;
    min-height: 95vh;
    display: flex;
    align-items: center;
    background:
        linear-gradient(135deg, rgba(10, 31, 58, 0.92) 0%, rgba(26, 58, 100, 0.85) 100%),
        url('../images/cover.png') center/cover no-repeat;
    color: var(--white);
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 20% 50%, rgba(212, 165, 72, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 980px;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(212, 165, 72, 0.15);
    border: 1px solid rgba(212, 165, 72, 0.3);
    color: var(--gold-400);
    padding: 10px 22px;
    border-radius: 100px;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 28px;
    letter-spacing: 0.5px;
}

.hero-tag::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gold-500);
    box-shadow: 0 0 0 4px rgba(212, 165, 72, 0.2);
}

.hero h1 {
    color: var(--white);
    font-size: clamp(42px, 7vw, 80px);
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: -1.5px;
    margin-bottom: 24px;
}

.hero h1 .highlight {
    color: var(--gold-400);
    position: relative;
}

.hero h1 .highlight::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -4px;
    height: 4px;
    background: var(--gold-500);
    border-radius: 2px;
}

.hero-tagline {
    font-size: 22px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 14px;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.hero-desc {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.75);
    max-width: 760px;
    margin-bottom: 44px;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.hero-stats {
    margin-top: 96px;
    padding-top: 48px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.hero-stat {
    color: var(--white);
}

.hero-stat .num {
    font-size: 42px;
    font-weight: 800;
    color: var(--gold-400);
    line-height: 1;
    margin-bottom: 10px;
    font-family: var(--font-display);
}

.hero-stat .label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.hero-stat .label-cn {
    display: block;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.85);
    text-transform: none;
    margin-top: 4px;
    letter-spacing: 0;
}

/* Page Header
   ========================================================================== */
.page-header {
    background:
        linear-gradient(135deg, rgba(10, 31, 58, 0.95) 0%, rgba(26, 58, 100, 0.92) 100%),
        url('../images/cover.png') center/cover no-repeat;
    color: var(--white);
    padding: 200px 0 100px;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 40%;
    height: 100%;
    background: radial-gradient(ellipse at center, rgba(212, 165, 72, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.page-header h1 {
    color: var(--white);
    font-size: clamp(38px, 5.5vw, 64px);
    margin-bottom: 16px;
    position: relative;
    z-index: 2;
    font-weight: 800;
    letter-spacing: -1px;
}

.page-header h1 .cn {
    display: block;
    font-size: 0.45em;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 12px;
}

.page-header .breadcrumb {
    color: rgba(255, 255, 255, 0.6);
    font-size: 16px;
    position: relative;
    z-index: 2;
    margin-bottom: 16px;
}

.page-header .breadcrumb a {
    color: rgba(255, 255, 255, 0.8);
}

.page-header .breadcrumb a:hover {
    color: var(--gold-400);
}

/* Cards
   ========================================================================== */
.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--gray-100);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--gold-400);
}

.card-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--navy-800), var(--navy-600));
    color: var(--white);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    font-weight: 800;
    margin-bottom: 24px;
    position: relative;
}

.card-icon::after {
    content: "";
    position: absolute;
    bottom: -3px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gold-500);
    border-radius: 0 0 14px 14px;
}

.card h3 {
    font-size: 24px;
    margin-bottom: 14px;
    color: var(--navy-900);
}

.card p {
    color: var(--gray-500);
    font-size: 17px;
    line-height: 1.7;
}

/* Grids
   ========================================================================== */
.grid {
    display: grid;
    gap: 32px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* About / Company Overview Section
   ========================================================================== */
.about-section {
    background: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 96px;
    align-items: center;
}

.about-text .section-title {
    margin-bottom: 28px;
}

.about-text p {
    font-size: 18px;
    line-height: 1.85;
    color: var(--gray-700);
    margin-bottom: 22px;
}

.about-text p strong {
    color: var(--navy-900);
    font-weight: 700;
}

.about-visual {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 4/3;
    box-shadow: var(--shadow-xl);
}

.about-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-visual::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(to top, rgba(10, 31, 58, 0.7), transparent);
}

.about-badge {
    position: absolute;
    bottom: 28px;
    left: 28px;
    background: var(--white);
    padding: 24px 28px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-xl);
    z-index: 2;
    border-left: 4px solid var(--gold-500);
}

.about-badge strong {
    display: block;
    font-size: 32px;
    color: var(--navy-900);
    font-weight: 800;
    line-height: 1;
}

.about-badge span {
    font-size: 14px;
    color: var(--gray-500);
    letter-spacing: 0.5px;
}

/* Stats / Numbers
   ========================================================================== */
.stats-section {
    background: linear-gradient(135deg, var(--navy-900), var(--navy-700));
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.stats-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 80% 20%, rgba(212, 165, 72, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 20% 80%, rgba(212, 165, 72, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.stats-section .container {
    position: relative;
    z-index: 2;
}

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

.stat-item {
    text-align: center;
    padding: 32px 24px;
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.stat-item:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-4px);
    border-color: var(--gold-500);
}

.stat-num {
    font-size: 56px;
    font-weight: 800;
    color: var(--gold-400);
    line-height: 1;
    margin-bottom: 14px;
    font-family: var(--font-display);
}

.stat-label {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 600;
    margin-bottom: 6px;
}

.stat-sub {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

/* Product Cards
   ========================================================================== */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 36px;
}

.product-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
    position: relative;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--gold-400);
}

.product-card .badge {
    position: absolute;
    top: 18px;
    left: 18px;
    background: var(--gold-500);
    color: var(--navy-900);
    padding: 6px 14px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 700;
    z-index: 2;
    letter-spacing: 0.5px;
}

.product-image {
    aspect-ratio: 16/10;
    background: var(--gray-100);
    overflow: hidden;
    position: relative;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.product-image::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 60%, rgba(10, 31, 58, 0.15));
    pointer-events: none;
}

.product-content {
    padding: 32px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-content h3 {
    font-size: 24px;
    color: var(--navy-900);
    margin-bottom: 8px;
}

.product-content .cn {
    font-size: 15px;
    color: var(--gray-500);
    margin-bottom: 16px;
}

.product-content p {
    color: var(--gray-500);
    font-size: 16px;
    line-height: 1.7;
    margin-bottom: 22px;
    flex: 1;
}

.product-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 18px;
}

.product-specs span {
    background: var(--gray-100);
    color: var(--navy-700);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
}

.product-link {
    color: var(--navy-800);
    font-size: 16px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: auto;
}

.product-link::after {
    content: "→";
    transition: transform 0.3s;
}

.product-link:hover::after {
    transform: translateX(4px);
}

.product-link:hover {
    color: var(--gold-600);
}

/* Customer Grid
   ========================================================================== */
.customer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
}

.customer-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 36px 24px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.customer-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gold-500);
    transform: translateX(-4px);
    transition: transform 0.3s;
}

.customer-card:hover {
    border-color: var(--gold-500);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.customer-card:hover::before {
    transform: translateX(0);
}

.customer-name-cn {
    font-size: 19px;
    font-weight: 700;
    color: var(--navy-900);
    margin-bottom: 8px;
    line-height: 1.3;
}

.customer-name-en {
    font-size: 15px;
    color: var(--gold-600);
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.customer-industry {
    font-size: 14px;
    color: var(--gray-500);
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--gray-100);
}

/* Timeline
   ========================================================================== */
.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding: 32px 0;
}

.timeline::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gray-200);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    padding: 28px 0;
    width: 50%;
    padding-right: 56px;
    text-align: right;
}

.timeline-item:nth-child(even) {
    margin-left: 50%;
    padding-right: 0;
    padding-left: 56px;
    text-align: left;
}

.timeline-year {
    display: inline-block;
    background: var(--gold-500);
    color: var(--navy-900);
    padding: 8px 20px;
    border-radius: 100px;
    font-size: 15px;
    font-weight: 800;
    margin-bottom: 14px;
    letter-spacing: 0.5px;
}

.timeline-content {
    background: var(--white);
    padding: 24px 28px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    display: inline-block;
    border: 1px solid var(--gray-100);
}

.timeline-content strong {
    display: block;
    color: var(--navy-900);
    font-size: 18px;
    margin-bottom: 8px;
}

.timeline-content p {
    font-size: 15px;
    color: var(--gray-500);
    margin: 0;
    line-height: 1.7;
}

.timeline-item::after {
    content: "";
    position: absolute;
    width: 18px;
    height: 18px;
    background: var(--gold-500);
    border: 3px solid var(--white);
    border-radius: 50%;
    top: 36px;
    box-shadow: 0 0 0 4px var(--gold-500);
    z-index: 1;
}

.timeline-item:nth-child(odd)::after {
    right: -9px;
}

.timeline-item:nth-child(even)::after {
    left: -9px;
}

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

.location-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
}

.location-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--gold-400);
}

.location-header {
    background: linear-gradient(135deg, var(--navy-800), var(--navy-600));
    color: var(--white);
    padding: 28px 32px;
    position: relative;
    overflow: hidden;
}

.location-header::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gold-500);
}

.location-header .flag {
    font-size: 32px;
    margin-bottom: 10px;
}

.location-header h3 {
    color: var(--white);
    font-size: 24px;
    margin-bottom: 6px;
}

.location-header .role {
    font-size: 14px;
    color: var(--gold-400);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.location-body {
    padding: 28px 32px;
}

.location-body .company-name {
    font-weight: 700;
    color: var(--navy-900);
    margin-bottom: 10px;
    font-size: 17px;
}

.location-body address {
    font-style: normal;
    color: var(--gray-500);
    font-size: 15px;
    line-height: 1.7;
}

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

.value-item {
    text-align: center;
    padding: 48px 32px;
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
}

.value-item:hover {
    border-color: var(--gold-500);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.value-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, var(--navy-800), var(--navy-600));
    color: var(--white);
    border-radius: 18px;
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 24px;
    position: relative;
}

.value-num::after {
    content: "";
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 28px;
    height: 4px;
    background: var(--gold-500);
    border-radius: 2px;
}

.value-item h3 {
    font-size: 24px;
    margin-bottom: 14px;
}

.value-item p {
    font-size: 16px;
    color: var(--gray-500);
    line-height: 1.7;
}

/* Quality Section
   ========================================================================== */
.cert-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    margin-top: 40px;
}

.cert-badge {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--white);
    border: 2px solid var(--gold-500);
    border-radius: var(--radius);
    padding: 20px 28px;
    color: var(--navy-900);
    font-weight: 700;
    font-size: 17px;
    transition: var(--transition);
}

.cert-badge:hover {
    background: var(--gold-500);
}

.cert-badge .check {
    width: 32px;
    height: 32px;
    background: var(--gold-500);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 800;
    flex-shrink: 0;
}

.cert-badge:hover .check {
    background: var(--white);
    color: var(--gold-600);
}

/* QC Pipeline
   ========================================================================== */
.qc-pipeline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 48px;
}

.qc-step {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
    position: relative;
    transition: var(--transition);
}

.qc-step:hover {
    border-color: var(--gold-500);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.qc-step::after {
    content: "→";
    position: absolute;
    right: -18px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gold-500);
    font-size: 22px;
    font-weight: 700;
    z-index: 2;
}

.qc-step:last-child::after {
    display: none;
}

.qc-step .label {
    display: inline-block;
    background: var(--navy-800);
    color: var(--white);
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 14px;
    letter-spacing: 1px;
}

.qc-step h4 {
    font-size: 18px;
    color: var(--navy-900);
    margin-bottom: 10px;
}

.qc-step p {
    font-size: 15px;
    color: var(--gray-500);
    line-height: 1.6;
}

/* Capacity Table
   ========================================================================== */
.capacity-table {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    margin-top: 48px;
}

.capacity-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 2fr;
    padding: 22px 40px;
    align-items: center;
    border-bottom: 1px solid var(--gray-100);
    transition: var(--transition);
}

.capacity-row:hover {
    background: var(--gray-50);
}

.capacity-row.header {
    background: linear-gradient(135deg, var(--navy-900), var(--navy-700));
    color: var(--white);
    font-weight: 700;
    font-size: 15px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.capacity-row.header:hover {
    background: linear-gradient(135deg, var(--navy-900), var(--navy-700));
}

.capacity-product {
    font-weight: 600;
    color: var(--navy-900);
    display: flex;
    flex-direction: column;
    gap: 2px;
    font-size: 17px;
}

.capacity-product .cn {
    font-size: 14px;
    color: var(--gray-500);
    font-weight: 400;
}

.capacity-num {
    text-align: center;
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--navy-800);
    font-size: 18px;
}

.capacity-num .unit {
    font-size: 13px;
    color: var(--gray-500);
    font-weight: 400;
    display: block;
}

.capacity-row.header .capacity-num {
    color: var(--gold-400);
}

.capacity-bar {
    background: var(--gray-100);
    border-radius: 100px;
    height: 10px;
    overflow: hidden;
    position: relative;
}

.capacity-bar-fill {
    background: linear-gradient(90deg, var(--gold-500), var(--gold-400));
    height: 100%;
    border-radius: 100px;
    transition: width 1s ease;
}

/* Equipment
   ========================================================================== */
.equipment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.equipment-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 28px;
    transition: var(--transition);
    border-top: 4px solid var(--gold-500);
}

.equipment-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.equipment-card h4 {
    font-size: 18px;
    color: var(--navy-900);
    margin-bottom: 14px;
}

.equipment-card .spec {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px dashed var(--gray-200);
    font-size: 14px;
    color: var(--gray-500);
}

.equipment-card .spec:last-child {
    border-bottom: none;
}

.equipment-card .spec strong {
    color: var(--navy-800);
    font-weight: 600;
}

/* Contact
   ========================================================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 56px;
    align-items: stretch;
}

.contact-info {
    background: linear-gradient(135deg, var(--navy-900), var(--navy-700));
    color: var(--white);
    border-radius: var(--radius-lg);
    padding: 56px 48px;
    position: relative;
    overflow: hidden;
}

.contact-info::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 200%;
    background: radial-gradient(ellipse at center, rgba(212, 165, 72, 0.15) 0%, transparent 60%);
    pointer-events: none;
}

.contact-info > * { position: relative; z-index: 2; }

.contact-info h3 {
    color: var(--white);
    font-size: 28px;
    margin-bottom: 14px;
}

.contact-info > p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 36px;
    font-size: 17px;
}

.contact-item {
    display: flex;
    gap: 18px;
    margin-bottom: 28px;
    align-items: flex-start;
}

.contact-item-icon {
    width: 52px;
    height: 52px;
    background: rgba(212, 165, 72, 0.15);
    border: 1px solid rgba(212, 165, 72, 0.3);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gold-400);
    font-size: 22px;
    flex-shrink: 0;
}

.contact-item-content h4 {
    color: var(--white);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 6px;
    font-weight: 600;
}

.contact-item-content p,
.contact-item-content a {
    color: rgba(255, 255, 255, 0.9);
    font-size: 17px;
    line-height: 1.5;
}

.contact-item-content a:hover {
    color: var(--gold-400);
}

.contact-form {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 56px 48px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-100);
}

.contact-form h3 {
    color: var(--navy-900);
    font-size: 28px;
    margin-bottom: 10px;
}

.contact-form > p {
    color: var(--gray-500);
    margin-bottom: 36px;
    font-size: 17px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    color: var(--navy-900);
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 8px;
}

.form-group label .req {
    color: #ef4444;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 18px;
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius);
    font-size: 16px;
    font-family: inherit;
    color: var(--gray-900);
    background: var(--white);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--navy-700);
    box-shadow: 0 0 0 3px rgba(26, 58, 100, 0.1);
}

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

.form-note {
    font-size: 14px;
    color: var(--gray-500);
    margin-top: 14px;
    text-align: center;
}

.form-success {
    background: #ecfdf5;
    border: 1px solid #10b981;
    color: #047857;
    padding: 14px 18px;
    border-radius: var(--radius);
    margin-bottom: 18px;
    display: none;
}

.form-success.show { display: block; }

/* CTA Section
   ========================================================================== */
.cta-section {
    background: linear-gradient(135deg, var(--navy-900), var(--navy-700));
    color: var(--white);
    text-align: center;
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(212, 165, 72, 0.15) 0%, transparent 60%);
    pointer-events: none;
}

.cta-section .container { position: relative; z-index: 2; }

.cta-section h2 {
    color: var(--white);
    font-size: clamp(32px, 4.5vw, 48px);
    margin-bottom: 20px;
}

.cta-section p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 20px;
    margin-bottom: 36px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer
   ========================================================================== */
.footer {
    background: #061528;
    color: rgba(255, 255, 255, 0.7);
    padding: 80px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 56px;
    margin-bottom: 56px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 20px;
}

.footer-brand .logo-img {
    height: 60px;
    width: auto;
    background: white;
    padding: 4px 8px;
    border-radius: 6px;
}

.footer-brand .logo-name {
    color: var(--white);
    font-size: 22px;
}

.footer-brand .logo-tag {
    color: var(--gold-400);
}

.footer-desc {
    font-size: 15px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 24px;
}

.footer-socials {
    display: flex;
    gap: 14px;
}

.footer-social {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: var(--transition);
}

.footer-social:hover {
    background: var(--gold-500);
    color: var(--navy-900);
    transform: translateY(-2px);
}

.footer h4 {
    color: var(--white);
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 22px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 15px;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--gold-400);
    padding-left: 4px;
}

.footer-contact p {
    font-size: 15px;
    margin-bottom: 10px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
}

.footer-contact strong {
    color: var(--white);
    display: block;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 6px;
    font-weight: 600;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 28px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
}

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

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

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

.fade-in { animation: fadeIn 0.6s ease both; }

/* Section Backgrounds
   ========================================================================== */
.bg-light { background: var(--gray-50); }
.bg-navy { background: var(--navy-900); color: var(--white); }

/* Responsive
   ========================================================================== */
@media (max-width: 1024px) {
    .grid-4, .stats-grid, .qc-pipeline {
        grid-template-columns: repeat(2, 1fr);
    }
    .location-grid, .values-grid, .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .about-grid, .contact-grid {
        grid-template-columns: 1fr;
        gap: 56px;
    }
    .timeline::before {
        left: 24px;
    }
    .timeline-item, .timeline-item:nth-child(even) {
        width: 100%;
        margin-left: 0;
        padding-left: 60px;
        padding-right: 0;
        text-align: left;
    }
    .timeline-item::after, .timeline-item:nth-child(even)::after {
        left: 16px;
        right: auto;
    }
    .capacity-row {
        grid-template-columns: 1.5fr 1fr 1fr;
        font-size: 15px;
        padding: 16px 24px;
    }
    .capacity-row .capacity-bar {
        display: none;
    }
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .section { padding: 80px 0; }
    .section-lg { padding: 100px 0; }
    .menu-toggle { display: block; }
    .header-inner { height: 84px; }
    .logo-img { height: 56px; }
    .nav {
        position: fixed;
        top: 84px;
        right: 0;
        bottom: 0;
        width: 300px;
        background: var(--white);
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 28px;
        box-shadow: var(--shadow-xl);
        transform: translateX(100%);
        transition: transform 0.3s ease;
        overflow-y: auto;
    }
    .nav.open { transform: translateX(0); }
    .nav a {
        padding: 16px 18px;
        border-radius: var(--radius);
        font-size: 17px;
    }
    .nav .nav-cta {
        margin: 14px 0 0 0;
        text-align: center;
    }
    .grid-2, .grid-3, .grid-4, .stats-grid, .qc-pipeline, .location-grid, .values-grid, .footer-grid {
        grid-template-columns: 1fr;
    }
    .hero h1 { font-size: 40px; }
    .hero-tagline { font-size: 18px; }
    .hero-desc { font-size: 17px; }
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        margin-top: 56px;
    }
    .form-row { grid-template-columns: 1fr; }
    .stat-num { font-size: 42px; }
    .capacity-row {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    .capacity-row.header { display: none; }
    .capacity-product { flex-direction: row; align-items: center; gap: 10px; }
    .product-grid { grid-template-columns: 1fr; }
    .customer-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
    .customer-grid { grid-template-columns: 1fr; }
    .hero-stats { grid-template-columns: 1fr 1fr; gap: 20px; }
    .hero-stat .num { font-size: 32px; }
    .page-header { padding: 150px 0 70px; }
    .contact-form, .contact-info { padding: 36px 28px; }
    .equipment-grid { grid-template-columns: 1fr; }
    .section-title { font-size: 28px; }
    .section-subtitle { font-size: 17px; }
}

/* Print friendly */
@media print {
    .header, .footer, .menu-toggle { display: none; }
    .hero { min-height: auto; padding: 40px 0; }
}