/* ==========================================================================
   COLORCOAT INDUSTRIAL COATINGS - CSS STYLESHEET
   ========================================================================== */

/* 1. VARIABLES & RESET */
:root {
    --color-primary: #001A3A;        /* Deep Navy Blue */
    --color-primary-hover: #002B63;
    --color-accent: #0B4EDB;         /* Vibrant Cobalt Blue */
    --color-accent-hover: #093eb3;
    --color-text-dark: #071833;      /* Dark Slate for typography */
    --color-text-muted: #64748B;     /* Slate Gray for secondary text */
    --color-bg-light: #F5F7FA;       /* Light gray background */
    --color-bg-dark: #001126;        /* Ultra dark background for footer/benefits */
    --color-border: #E2E8F0;
    --font-family: 'Inter', sans-serif;
    --transition-smooth: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.02);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.03);
    --radius-md: 8px;
    --radius-lg: 12px;
}

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

body {
    font-family: var(--font-family);
    background-color: #FFFFFF;
    color: var(--color-text-dark);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
}

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

/* 2. COMMON UTILITIES */
.container {
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 80px);
}

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

.w-full {
    width: 100%;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    transition: var(--transition-smooth);
}

.btn:active {
    transform: scale(0.97);
}

.btn-primary {
    background-color: var(--color-primary);
    color: #FFFFFF;
}

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

.btn-accent {
    background-color: var(--color-accent);
    color: #FFFFFF;
    box-shadow: 0 4px 14px rgba(11, 78, 219, 0.2);
}

.btn-accent:hover {
    background-color: var(--color-accent-hover);
}

.btn-outline {
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #FFFFFF;
}

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

/* Sections Header */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 48px;
}

.section-title {
    font-size: 32px;
    font-weight: 900;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.section-link {
    color: var(--color-accent);
    font-size: 14px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition-smooth);
}

.section-link i {
    transition: transform 0.2s ease;
}

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

.section-link:hover i {
    transform: translateX(4px);
}

/* ==========================================================================
   3. SECTIONS STYLING
   ========================================================================== */


/* Hero Section */
.hero {
    position: relative;
    background-color: var(--color-primary);
    color: #FFFFFF;
    min-height: 460px;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 60px 0;
}

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

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: right center;
    opacity: 0.4;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, var(--color-primary) 0%, rgba(0, 26, 58, 0.9) 60%, transparent 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 650px;
}

.hero-title {
    font-size: 48px;
    font-weight: 900;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
}

.hero-desc {
    font-size: 18px;
    font-weight: 300;
    color: #E2E8F0;
    line-height: 1.6;
    margin-bottom: 32px;
}

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

.hero-actions .btn-accent i {
    transition: transform 0.2s;
}

.hero-actions .btn-accent:hover i {
    transform: translateX(4px);
}

/* Benefits Bar */
.benefits {
    background-color: var(--color-bg-dark);
    color: #FFFFFF;
    padding: 24px 0;
    border-bottom: 1px solid #1E293B;
}

.benefits-grid {
    display: grid;
    grid-template-cols: repeat(6, 1fr);
    gap: 16px;
}

.benefit-item {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding-left: 16px;
    border-left: 1px solid #1E293B;
}

.benefits-grid .benefit-item:first-child {
    padding-left: 0;
    border-left: none;
}

.benefit-icon {
    width: 48px;
    height: 48px;
    background-color: rgba(11, 78, 219, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.benefit-icon i {
    font-size: 20px;
    color: var(--color-accent);
}

.benefit-text h4 {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #F8FAFC;
}

.benefit-text p {
    font-size: 12px;
    color: #94A3B8;
    margin-top: 2px;
}

/* Products Section */
.products {
    padding: 80px 0;
    background-color: #FFFFFF;
}

.products-grid {
    display: grid;
    grid-template-cols: repeat(5, 1fr);
    gap: 24px;
}

.product-card {
    background-color: var(--color-bg-light);
    border: 1px solid #F1F5F9;
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
}

.product-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-6px);
    border-color: #E2E8F0;
}

.product-img-holder {
    aspect-ratio: 4/5;
    background-color: #FFFFFF;
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #F1F5F9;
    position: relative;
    overflow: hidden;
    margin-bottom: 24px;
}

.product-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    background-color: #F1F5F9;
    color: var(--color-text-muted);
    font-size: 9px;
    font-weight: 700;
    padding: 4px 8px;
    border-radius: 4px;
}

.product-img-holder img {
    max-height: 100%;
    max-width: 100%;
    object-fit: contain;
    mix-blend-mode: multiply;
    transition: transform 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

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

.product-info {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.product-model {
    color: var(--color-accent);
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}

.product-name {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.3;
    margin-bottom: 12px;
    transition: color 0.2s;
}

.product-card:hover .product-name {
    color: var(--color-accent);
}

.product-desc {
    font-size: 12px;
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-top: auto;
}

/* Applications Section */
.applications {
    padding: 80px 0;
    background-color: var(--color-bg-light);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

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

.app-card {
    position: relative;
    height: 240px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: var(--transition-smooth);
}

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

.app-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.app-card:hover .app-bg {
    transform: scale(1.05);
}

.app-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, var(--color-primary) 0%, rgba(0, 26, 58, 0.4) 60%, transparent 100%);
    z-index: 1;
    transition: var(--transition-smooth);
}

.app-card:hover .app-overlay {
    background: linear-gradient(to top, var(--color-accent) 0%, rgba(11, 78, 219, 0.4) 60%, transparent 100%);
}

.app-content {
    position: relative;
    z-index: 2;
    height: 100%;
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.app-icon {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    font-size: 18px;
}

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

.app-title {
    font-size: 18px;
    font-weight: 700;
    color: #FFFFFF;
    max-width: 80%;
    line-height: 1.3;
}

.app-arrow {
    width: 32px;
    height: 32px;
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    transition: var(--transition-smooth);
}

.app-card:hover .app-arrow {
    background-color: #FFFFFF;
    color: var(--color-accent);
}

/* About Section */
.about {
    padding: 80px 0;
    background-color: #FFFFFF;
}

.about-grid {
    display: grid;
    grid-template-cols: 5fr 7fr;
    gap: 48px;
    align-items: center;
}

.sub-title {
    color: var(--color-accent);
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    display: block;
    margin-bottom: 8px;
}

.about-title {
    font-size: 36px;
    font-weight: 900;
    color: var(--color-primary);
    margin-bottom: 24px;
}

.about-text {
    color: var(--color-text-muted);
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 32px;
}

.about-lead {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text-dark);
    margin-bottom: 16px;
}

.stats-grid {
    display: grid;
    grid-template-cols: repeat(2, 1fr);
    gap: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
    margin-bottom: 32px;
}

.stat-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.stat-icon {
    padding: 8px;
    background-color: #EFF6FF;
    border-radius: 8px;
    color: var(--color-accent);
    font-size: 18px;
}

.stat-value {
    font-size: 24px;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
}

.stat-label {
    font-size: 12px;
    color: var(--color-text-muted);
    margin-top: 4px;
    font-weight: 500;
}

.about-image {
    height: 450px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    position: relative;
    border: 1px solid var(--color-border);
}

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

.about-badge {
    position: absolute;
    bottom: 24px;
    left: 24px;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(8px);
    padding: 16px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255,255,255,0.2);
    max-width: 320px;
}

.badge-tag {
    font-size: 11px;
    font-weight: 700;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: block;
    margin-bottom: 4px;
}

.badge-text {
    font-size: 12px;
    font-weight: 500;
    color: #334155;
    line-height: 1.5;
}

/* News Section */
.news {
    padding: 80px 0;
    background-color: var(--color-bg-light);
    border-top: 1px solid var(--color-border);
}

.news-grid {
    display: grid;
    grid-template-cols: repeat(3, 1fr);
    gap: 32px;
}

.news-card {
    background-color: #FFFFFF;
    border: 1px solid #F1F5F9;
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    height: 160px;
    transition: var(--transition-smooth);
}

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

.news-img {
    width: 33.333%;
    position: relative;
    overflow: hidden;
}

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

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

.news-content {
    padding: 16px;
    width: 66.666%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.news-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 10px;
    font-weight: 700;
    color: #94A3B8;
}

.news-divider {
    width: 4px;
    height: 4px;
    background-color: #CBD5E1;
    border-radius: 50%;
}

.news-cat {
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.news-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.2s;
}

.news-card:hover .news-title {
    color: var(--color-accent);
}

.news-desc {
    font-size: 11px;
    color: var(--color-text-muted);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-more {
    font-size: 11px;
    font-weight: 700;
    color: var(--color-accent);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.news-more i {
    transition: transform 0.2s;
}

.news-card:hover .news-more i {
    transform: translateX(2px);
}

/* CTA Banner */
.cta-banner-sec {
    margin: 48px 0;
}

.cta-banner {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
    border-radius: var(--radius-lg);
    padding: 32px 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 32px;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0.05;
    background-image: linear-gradient(to right, #808080 1px, transparent 1px), linear-gradient(to bottom, #808080 1px, transparent 1px);
    background-size: 24px 24px;
}

.cta-text {
    position: relative;
    z-index: 1;
    max-width: 700px;
}

.cta-text h2 {
    font-size: 28px;
    font-weight: 900;
    color: #FFFFFF;
    line-height: 1.25;
    margin-bottom: 12px;
}

.cta-text p {
    font-size: 14px;
    font-weight: 300;
    color: #D1D5DB;
}

.cta-action {
    position: relative;
    z-index: 1;
    flex-shrink: 0;
}


/* ==========================================================================
   4. RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */

@media (max-width: 1200px) {
    .benefits-grid {
        grid-template-cols: repeat(3, 1fr);
        gap: 24px;
    }
    .benefit-item {
        border-left: none;
        padding-left: 0;
    }
    .products-grid {
        grid-template-cols: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .about-grid {
        grid-template-cols: 1fr;
    }
    .about-image {
        height: 350px;
    }
    .applications-grid {
        grid-template-cols: repeat(2, 1fr);
    }
    .news-grid {
        grid-template-cols: 1fr;
        gap: 20px;
    }
    .news-card {
        height: 140px;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 36px;
    }
    .hero-desc {
        font-size: 16px;
    }
    .benefits-grid {
        grid-template-cols: repeat(2, 1fr);
    }
    .products-grid {
        grid-template-cols: repeat(2, 1fr);
    }
    .applications-grid {
        grid-template-cols: 1fr;
    }
    .cta-banner {
        flex-direction: column;
        align-items: flex-start;
        padding: 24px;
    }
    .cta-action {
        width: 100%;
    }
    .cta-action button {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .benefits-grid {
        grid-template-cols: 1fr;
    }
    .products-grid {
        grid-template-cols: 1fr;
    }
    .stats-grid {
        grid-template-cols: 1fr;
    }
}


/* ==========================================================================
   PRODUCTION PAGE SPECIFIC STYLES
   ========================================================================== */

/* Subpage Hero */
.hero-sub {
    min-height: 330px;
    padding: 40px 0;
}

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: #94A3B8;
    margin-bottom: 24px;
}

.breadcrumbs a {
    transition: color 0.2s;
}

.breadcrumbs a:hover {
    color: #FFFFFF;
}

.bc-divider {
    font-size: 8px;
}

.bc-current {
    color: #FFFFFF;
    font-weight: 600;
}

/* Stats Bar specific */
.stats-bar {
    background-color: #FFFFFF;
    border-bottom: 1px solid var(--color-border);
    padding: 32px 0;
}

.stats-bar .benefit-item {
    border-left: 1px solid var(--color-border);
}

.stats-bar .benefit-item:first-child {
    border-left: none;
}

.stats-bar .benefit-text p {
    color: var(--color-text-muted);
}

.stat-num {
    font-size: 24px;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1.2;
}

/* Production Areas (4x2 Grid) */
.production-areas {
    padding: 80px 0;
    background-color: #FFFFFF;
}

.mb-48 {
    margin-bottom: 48px;
}

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

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

.area-card {
    background-color: var(--color-primary);
    color: #FFFFFF;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
}

.area-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.area-img {
    height: 180px;
    overflow: hidden;
    position: relative;
}

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

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

.area-content {
    padding: 24px;
    position: relative;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.area-num {
    position: absolute;
    top: -20px;
    left: 24px;
    background-color: var(--color-accent);
    color: #FFFFFF;
    font-size: 14px;
    font-weight: 800;
    width: 40px;
    height: 40px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    border: 2px solid var(--color-primary);
}

.area-title {
    font-size: 16px;
    font-weight: 800;
    margin-top: 12px;
    margin-bottom: 12px;
    line-height: 1.3;
}

.area-desc {
    font-size: 12px;
    color: #94A3B8;
    line-height: 1.6;
}

/* Production Process Flow (Horizontal Timeline) */
.production-process {
    padding: 80px 0;
    background-color: var(--color-bg-light);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    overflow-x: auto;
}

.process-flow {
    display: flex;
    justify-content: space-between;
    position: relative;
    min-width: 1000px; /* Ensures timeline stays horizontal on scroll */
    padding: 20px 0;
}

.process-flow::before {
    content: '';
    position: absolute;
    top: 50px;
    left: 40px;
    right: 40px;
    height: 2px;
    background-image: linear-gradient(to right, var(--color-border) 50%, transparent 50%);
    background-size: 12px 2px;
    z-index: 1;
}

.process-step {
    flex: 1;
    text-align: center;
    position: relative;
    z-index: 2;
    padding: 0 12px;
}

.step-icon-wrapper {
    position: relative;
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
}

.step-icon {
    width: 64px;
    height: 64px;
    background-color: #FFFFFF;
    border: 2px solid var(--color-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    font-size: 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
}

.process-step:hover .step-icon {
    border-color: var(--color-accent);
    color: var(--color-accent);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.step-num {
    position: absolute;
    top: -6px;
    right: -6px;
    background-color: var(--color-accent);
    color: #FFFFFF;
    font-size: 10px;
    font-weight: 800;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid #FFFFFF;
}

.step-title {
    font-size: 13px;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 8px;
    line-height: 1.3;
}

.step-desc {
    font-size: 11px;
    color: var(--color-text-muted);
    line-height: 1.4;
}

/* Equipment Section */
.equipment {
    padding: 80px 0;
    background-color: #FFFFFF;
}

.equipment-grid {
    display: grid;
    grid-template-cols: repeat(5, 1fr);
    gap: 24px;
}

.eq-card {
    background-color: var(--color-bg-light);
    border: 1px solid #F1F5F9;
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
}

.eq-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-6px);
    border-color: #E2E8F0;
}

.eq-img {
    height: 160px;
    overflow: hidden;
}

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

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

.eq-info {
    padding: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.eq-title {
    font-size: 14px;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1.3;
    margin-bottom: 8px;
}

.eq-desc {
    font-size: 12px;
    color: var(--color-text-muted);
    line-height: 1.5;
}

/* Quality System Section */
.quality {
    padding: 80px 0;
    background-color: #FFFFFF;
    border-top: 1px solid var(--color-border);
}

.mb-24 {
    margin-bottom: 24px;
}

.quality-lead {
    font-size: 16px;
    color: var(--color-text-muted);
    line-height: 1.6;
    max-width: 900px;
}

.quality-grid {
    display: grid;
    grid-template-cols: 7fr 5fr;
    gap: 48px;
    align-items: center;
}

.certs-grid {
    display: grid;
    grid-template-cols: repeat(3, 1fr);
    gap: 16px;
}

.cert-badge {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 20px;
    text-align: center;
    background-color: var(--color-bg-light);
    transition: var(--transition-smooth);
}

.cert-badge:hover {
    border-color: var(--color-accent);
    background-color: #FFFFFF;
    box-shadow: var(--shadow-md);
}

.cert-icon-box {
    width: 48px;
    height: 48px;
    background-color: var(--color-primary);
    color: #FFFFFF;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 14px;
    margin: 0 auto 12px;
}

.cert-num {
    font-size: 16px;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 4px;
}

.cert-label {
    font-size: 11px;
    color: var(--color-text-muted);
    line-height: 1.3;
}

.quality-list-box {
    background-color: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.checkmark-list {
    list-style: none;
}

.checkmark-list li {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 20px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
}

.checkmark-list li:last-child {
    margin-bottom: 0;
}

.checkmark-list i {
    color: var(--color-accent);
    font-size: 16px;
    margin-top: 3px;
}

/* CTA Banner specific tweaks */
.cta-content-wrapper {
    display: flex;
    align-items: center;
    gap: 24px;
}

.cta-icon-large {
    font-size: 40px;
    color: var(--color-accent);
}

.cta-action {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.cta-sub-tip {
    font-size: 11px;
    color: #94A3B8;
}

/* ==========================================================================
   PRODUCTION RESPONSIVE MEDIA QUERIES
   ========================================================================== */

@media (max-width: 1200px) {
    .areas-grid {
        grid-template-cols: repeat(2, 1fr);
    }
    .equipment-grid {
        grid-template-cols: repeat(3, 1fr);
    }
    .quality-grid {
        grid-template-cols: 1fr;
    }
}

@media (max-width: 768px) {
    .areas-grid {
        grid-template-cols: 1fr;
    }
    .equipment-grid {
        grid-template-cols: repeat(2, 1fr);
    }
    .certs-grid {
        grid-template-cols: repeat(2, 1fr);
    }
    .cta-content-wrapper {
        flex-direction: column;
        text-align: center;
    }
    .cta-action {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .equipment-grid {
        grid-template-cols: 1fr;
    }
    .certs-grid {
        grid-template-cols: 1fr;
    }
}


/* ==========================================================================
   ABOUT PAGE SPECIFIC STYLES
   ========================================================================== */

/* Hero About with bottom advantages */
.hero-about {
    min-height: 420px;
    padding-top: 50px;
    padding-bottom: 80px;
}

.hero-advantages {
    display: grid;
    grid-template-cols: repeat(4, 1fr);
    gap: 24px;
    margin-top: 48px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 24px;
    position: relative;
    z-index: 2;
}

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

.adv-icon {
    width: 36px;
    height: 36px;
    background-color: rgba(11, 78, 219, 0.15);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    font-size: 16px;
    flex-shrink: 0;
}

.adv-label {
    font-size: 12px;
    font-weight: 500;
    color: #E2E8F0;
    line-height: 1.4;
}

/* Who We Are (左右布局) */
.who-we-are {
    padding: 80px 0;
    background-color: #FFFFFF;
}

.who-we-are-grid {
    display: grid;
    grid-template-cols: 5fr 7fr;
    gap: 48px;
    align-items: center;
    margin-bottom: 48px;
}

.who-we-are-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.who-we-are-image {
    height: 340px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
}

.who-we-are-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* About Stats Bar (4 columns) */
.about-stats-bar {
    background-color: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px;
    display: grid;
    grid-template-cols: repeat(4, 1fr);
    gap: 24px;
}

.about-stat-col {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    border-left: 1px solid var(--color-border);
    padding-left: 24px;
}

.about-stats-bar .about-stat-col:first-child {
    border-left: none;
    padding-left: 0;
}

.about-stat-icon {
    width: 48px;
    height: 48px;
    background-color: rgba(11, 78, 219, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    font-size: 20px;
    flex-shrink: 0;
}

.about-stat-text {
    display: flex;
    flex-direction: column;
}

.about-stat-num {
    font-size: 32px;
    font-weight: 900;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 4px;
}

.about-stat-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--color-text-dark);
    margin-bottom: 2px;
}

.about-stat-desc {
    font-size: 11px;
    color: var(--color-text-muted);
}

/* Why Choose Us (6 columns) */
.why-choose-us {
    padding: 80px 0;
    background-color: var(--color-bg-light);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.why-grid {
    display: grid;
    grid-template-cols: repeat(6, 1fr);
    gap: 20px;
}

.why-card {
    background-color: #FFFFFF;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px 16px;
    text-align: left;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
}

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

.why-icon {
    width: 40px;
    height: 40px;
    background-color: rgba(11, 78, 219, 0.08);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    font-size: 18px;
    margin-bottom: 16px;
}

.why-title {
    font-size: 14px;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 8px;
    line-height: 1.3;
}

.why-desc {
    font-size: 11px;
    color: var(--color-text-muted);
    line-height: 1.5;
}

/* Production & Development (4 horizontal cards with background image) */
.prod-dev {
    padding: 80px 0;
    background-color: #FFFFFF;
}

.prod-dev-grid {
    display: grid;
    grid-template-cols: repeat(4, 1fr);
    gap: 24px;
}

.prod-dev-card {
    position: relative;
    height: 220px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.prod-dev-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.pd-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.prod-dev-card:hover .pd-bg {
    transform: scale(1.05);
}

.pd-overlay {
    position: absolute;
    inset: 0;
    background: transparent;
    z-index: 1;
}

.pd-content {
    position: relative;
    z-index: 2;
    padding: 24px;
    color: #FFFFFF;
}

.pd-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.pd-icon {
    font-size: 18px;
    color: var(--color-accent);
}

.pd-title {
    font-size: 15px;
    font-weight: 800;
    line-height: 1.3;
}

.pd-desc {
    font-size: 11px;
    color: #CBD5E1;
    line-height: 1.5;
}

/* Certificates & Standards (6 horizontal cards) */
.certs-standards {
    padding: 80px 0;
    background-color: var(--color-bg-light);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.standards-desc {
    font-size: 15px;
    line-height: 1.6;
    color: var(--color-text-muted);
    max-width: 720px;
    margin: 0 0 32px;
}

.standards-grid {
    display: grid;
    grid-template-cols: repeat(6, 1fr);
    gap: 16px;
}

.std-card {
    background-color: #FFFFFF;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: var(--transition-smooth);
}

.std-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent);
}

.std-icon-box {
    width: 44px;
    height: 44px;
    background-color: var(--color-primary);
    color: #FFFFFF;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 12px;
    margin-bottom: 12px;
}

.std-info {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.std-title {
    font-size: 13px;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 4px;
}

.std-desc {
    font-size: 10px;
    color: var(--color-text-muted);
    line-height: 1.3;
}

/* Our Values & Principles (5 columns) */
.values-principles {
    padding: 80px 0;
    background-color: #FFFFFF;
}

.values-grid {
    display: grid;
    grid-template-cols: repeat(5, 1fr);
    gap: 24px;
}

.value-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 0 12px;
    border-left: 1px solid var(--color-border);
}

.values-grid .value-item:first-child {
    border-left: none;
}

.value-icon {
    width: 48px;
    height: 48px;
    background-color: rgba(11, 78, 219, 0.08);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    font-size: 20px;
    margin-bottom: 16px;
    transition: var(--transition-smooth);
}

.value-item:hover .value-icon {
    background-color: var(--color-accent);
    color: #FFFFFF;
    transform: rotate(360deg);
}

.value-title {
    font-size: 14px;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.value-desc {
    font-size: 11px;
    color: var(--color-text-muted);
    line-height: 1.5;
}

/* ==========================================================================
   ABOUT RESPONSIVE MEDIA QUERIES
   ========================================================================== */

@media (max-width: 1200px) {
    .hero-advantages {
        grid-template-cols: repeat(2, 1fr);
    }
    .about-stats-bar {
        grid-template-cols: repeat(2, 1fr);
    }
    .about-stats-bar .about-stat-col {
        border-left: none;
        padding-left: 0;
    }
    .why-grid {
        grid-template-cols: repeat(3, 1fr);
    }
    .prod-dev-grid {
        grid-template-cols: repeat(2, 1fr);
    }
    .standards-grid {
        grid-template-cols: repeat(3, 1fr);
    }
    .values-grid {
        grid-template-cols: repeat(3, 1fr);
    }
    .values-grid .value-item {
        border-left: none;
        padding: 16px 0;
    }
}

@media (max-width: 768px) {
    .hero-advantages {
        grid-template-cols: 1fr;
    }
    .who-we-are-grid {
        grid-template-cols: 1fr;
    }
    .who-we-are-image {
        height: 260px;
    }
    .about-stats-bar {
        grid-template-cols: 1fr;
    }
    .why-grid {
        grid-template-cols: repeat(2, 1fr);
    }
    .prod-dev-grid {
        grid-template-cols: 1fr;
    }
    .standards-grid {
        grid-template-cols: repeat(2, 1fr);
    }
    .values-grid {
        grid-template-cols: 1fr;
    }
}

@media (max-width: 480px) {
    .why-grid {
        grid-template-cols: 1fr;
    }
    .standards-grid {
        grid-template-cols: 1fr;
    }
}

/* ==========================================================================
   LIGHTBOX MODAL — 点击 prod-dev-card 放大图片
   ========================================================================== */
.lightbox-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 9999;
    align-items: center;
    justify-content: center;
}

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

.lightbox-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.lightbox-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 90vw;
    max-height: 90vh;
}

.lightbox-img {
    max-width: 90vw;
    max-height: 80vh;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 4px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
}

.lightbox-caption {
    margin-top: 16px;
    color: #e2e8f0;
    font-size: 15px;
    font-weight: 600;
    text-align: center;
    max-width: 600px;
}

.lightbox-close {
    position: fixed;
    top: 20px;
    right: 24px;
    z-index: 2;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s, transform 0.2s;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.24);
    transform: scale(1.1);
}

.lightbox-prev,
.lightbox-next {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s, transform 0.2s;
}

.lightbox-prev {
    left: 20px;
}

.lightbox-next {
    right: 20px;
}

.lightbox-prev:hover,
.lightbox-next:hover {
    background: rgba(255, 255, 255, 0.24);
    transform: translateY(-50%) scale(1.1);
}

@media (max-width: 600px) {
    .lightbox-prev { left: 8px; }
    .lightbox-next { right: 8px; }
    .lightbox-close { top: 12px; right: 12px; }
}
html { scroll-behavior: smooth; }
body { overflow-x: hidden; background: #fff; }
img[src=""], img:not([src]) { opacity: 0 !important; visibility: hidden !important; }
.container { max-width: 100%; padding-left: clamp(20px, 4vw, 80px); padding-right: clamp(20px, 4vw, 80px); }

.hero.hero-about { min-height: 344px; padding: 58px 0 34px; align-items: stretch; background: linear-gradient(90deg, #001a3a 0%, #062143 54%, #143352 100%); }
.hero-about .hero-bg { background: linear-gradient(90deg, #001a3a 0%, rgba(0,26,58,.72) 36%, rgba(0,26,58,.22) 70%, rgba(0,26,58,.08) 100%); }
.hero-about::before { background: linear-gradient(90deg, #001a3a 0%, rgba(0,26,58,.72) 36%, rgba(0,26,58,.32) 64%, rgba(0,26,58,.08) 100%); }
.hero-about .container { position: relative; z-index: 2; display: flex; flex-direction: column; justify-content: space-between; min-height: 252px; }
.hero-content { max-width: 520px; }
.hero-title { font-size: 46px; margin-bottom: 18px; letter-spacing: -0.035em; }
.hero-desc { font-size: 16px; line-height: 1.62; max-width: 500px; margin-bottom: 0; color: #f1f5f9; }
.hero-advantages { width: 620px; max-width: 100%; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; margin-top: 28px; padding-top: 0; border-top: 0; }
.adv-item { justify-content: center; flex-direction: column; min-height: 74px; padding: 0 22px; border-right: 1px solid rgba(255,255,255,.18); text-align: center; }
.adv-item:first-child { padding-left: 0; }
.adv-item:last-child { border-right: 0; }
.adv-icon { width: 40px; height: 40px; border-radius: 50%; background: transparent; border: 1.5px solid rgba(255,255,255,.72); color: #fff; font-size: 20px; }
.adv-label { font-size: 13px; line-height: 1.35; color: #fff; font-weight: 600; }

.who-we-are { padding: 32px 0 0; }
.who-we-are-grid { grid-template-columns: 0.78fr 1.22fr; gap: 56px; align-items: center; margin-bottom: 28px; }
.sub-title { display: inline-block; color: #0b4edb; font-size: 13px; font-weight: 900; letter-spacing: .06em; margin-bottom: 8px; }
.about-title { font-size: 34px; line-height: 1.08; color: #001a3a; font-weight: 900; margin-bottom: 20px; }
.about-text { color: #1f2d44; font-size: 15px; line-height: 1.72; margin-bottom: 14px; }
.who-we-are-content .btn { height: 45px; border-radius: 3px; margin-top: 6px; }
.who-we-are-image { height: 332px; border-radius: 4px; background: linear-gradient(135deg, #e8eef6 0%, #cfd9e8 38%, #0b1f3e 100%); box-shadow: none; border: 1px solid #dbe3ef; }
.about-stats-bar { margin-top: 0; border-radius: 0; border: 1px solid #e6ebf2; background: #f7f9fc; padding: 22px 30px; grid-template-columns: repeat(4, 1fr); gap: 0; }
.about-stat-col { gap: 18px; align-items: center; padding: 0 28px; border-left: 1px solid #dde5ef; }
.about-stat-icon { width: 42px; height: 42px; background: transparent; color: #002b7f; font-size: 28px; }
.about-stat-num { color: #002b7f; font-size: 32px; }
.about-stat-title { color: #0a1735; font-size: 12px; line-height: 1.2; }
.about-stat-desc { color: #4c5b72; font-size: 11px; }

.why-choose-us, .prod-dev, .certs-standards, .values-principles { padding: 24px 0 0; background: #fff; border: 0; }
.section-title { font-size: 24px; line-height: 1.2; color: #071833; text-align: left !important; margin-bottom: 14px !important; }
.why-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 16px; }
.why-card { min-height: 118px; border-radius: 2px; padding: 18px 16px; box-shadow: none; }
.why-icon { width: 36px; height: 36px; background: transparent; color: #002b7f; font-size: 24px; margin-bottom: 12px; }
.why-title { font-size: 13px; line-height: 1.25; margin-bottom: 8px; }
.why-desc { font-size: 11px; color: #26354d; line-height: 1.45; }

.prod-dev-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 22px; }
.prod-dev-card { height: 176px; border-radius: 3px; box-shadow: none; }
.pd-overlay { background: transparent; }
.pd-content { padding: 0 20px 20px; background: rgba(0, 26, 58, 0.85); }
.pd-header { gap: 10px; margin-bottom: 8px; align-items: flex-start; }
.pd-icon { color: #fff; font-size: 23px; margin-top: 2px; }
.pd-title { color: #fff; font-size: 13px; line-height: 1.3; }
.pd-desc { color: #e6edf7; font-size: 11px; line-height: 1.55; }

.standards-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 0; border: 1px solid #e6ebf2; background: #fff; }
.std-card { border: 0; border-right: 1px solid #e6ebf2; border-radius: 0; padding: 20px 12px; min-height: 92px; flex-direction: row; text-align: left; gap: 12px; align-items: center; }
.std-card:last-child { border-right: 0; }
.std-icon-box { background: transparent; color: #002b7f; border: 0; border-radius: 0; width: 52px; height: 52px; margin: 0; font-size: 14px; flex-shrink: 0; overflow: hidden; }
.std-icon-img { display: block; width: 100%; height: 100%; object-fit: contain; }
.std-info { align-items: flex-start; }
.std-title { font-size: 17px; text-transform: uppercase; line-height: 1.1; }
.std-desc { font-size: 11px; color: #2f3d52; }

.values-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0; border-top: 1px solid #e6ebf2; border-bottom: 1px solid #e6ebf2; }
.value-item { flex-direction: row; text-align: left; align-items: center; gap: 16px; padding: 18px 18px; border-left: 1px solid #e6ebf2; }
.value-icon { width: 38px; height: 38px; background: transparent; color: #002b7f; margin: 0; font-size: 24px; flex-shrink: 0; }
.value-title { font-size: 13px; margin-bottom: 4px; }
.value-desc { font-size: 10.5px; line-height: 1.35; }

.cta-banner-sec { margin: 30px 0 0; }
.cta-banner { min-height: 98px; border-radius: 3px; padding: 22px 44px; background: linear-gradient(90deg, #001a3a 0%, #00265a 100%); }
.cta-icon-large { width: 66px; height: 66px; border-radius: 0; background: transparent; border: 1px solid rgba(255,255,255,.5); font-size: 28px; }
.cta-text h2 { font-size: 25px; margin-bottom: 6px; }
.cta-text p { font-size: 13px; max-width: 620px; }
.cta-action .btn { min-width: 250px; height: 46px; border-radius: 3px; }
.cta-sub-tip { font-size: 12px; margin-top: 8px; }


@media (max-width: 1200px) {
  .why-grid, .standards-grid { grid-template-columns: repeat(3, 1fr); }
  .prod-dev-grid, .about-stats-bar { grid-template-columns: repeat(2, 1fr); }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .std-card, .value-item { border: 1px solid #e6ebf2; }
}
@media (max-width: 900px) {
  .who-we-are-grid { grid-template-columns: 1fr; gap: 24px; }
  .hero-advantages { width: 100%; grid-template-columns: repeat(2, 1fr); }
  .adv-item { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.14); padding: 12px; }
}
@media (max-width: 768px) {
  .container { padding-left: clamp(20px, 4vw, 80px); padding-right: clamp(20px, 4vw, 80px); }
  .hero.hero-about { min-height: auto; padding: 42px 0 28px; }
  .hero-title { font-size: 36px; }
  .hero-desc { font-size: 14px; }
  .about-title { font-size: 28px; }
  .why-grid, .prod-dev-grid, .standards-grid, .values-grid, .about-stats-bar { grid-template-columns: 1fr; }
  .about-stat-col { border-left: 0; padding: 0; }
  .cta-banner { flex-direction: column; align-items: flex-start; padding: 24px; }
}
@media (max-width: 480px) {
  .hero-advantages { grid-template-columns: 1fr; }
}


/* Final about page value-card spacing fix: keep icon + title on first line and description below, without changing HTML resource paths. */
.values-grid .value-item {
    flex-wrap: wrap;
    align-items: flex-start;
    column-gap: 12px;
    row-gap: 4px;
    min-width: 0;
}
.values-grid .value-item .value-icon {
    flex: 0 0 38px;
}
.values-grid .value-item .value-title {
    flex: 1 1 calc(100% - 50px);
    min-width: 0;
    line-height: 1.25;
    margin-top: 4px;
}
.values-grid .value-item .value-desc {
    flex: 0 0 100%;
    padding-left: 50px;
    box-sizing: border-box;
    line-height: 1.45;
}
@media (max-width: 1200px) {
    .values-grid .value-item .value-desc { padding-left: 50px; }
}
@media (max-width: 900px) {
    .values-grid .value-item .value-desc { padding-left: 0; }
}

/* ========================================================================== 
   Mobile About Hero Advantages - lightweight 2x2 corporate capability tags
   ========================================================================== */
@media (max-width: 768px) {
    .hero.hero-about {
        padding: 42px 0 34px;
    }

    .hero-about .container {
        min-height: auto;
        justify-content: flex-start;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-desc {
        margin-bottom: 0;
    }

    .hero-advantages {
        width: 100%;
        max-width: 100%;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
        margin-top: 26px;
        padding-top: 0;
        border-top: 0;
    }

    .adv-item,
    .adv-item:first-child,
    .adv-item:last-child {
        height: 84px;
        min-height: 84px;
        padding: 12px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        gap: 8px;
        text-align: center;
        border: 1px solid rgba(255,255,255,0.12);
        border-radius: 12px;
        background: rgba(255,255,255,0.04);
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
        box-shadow: none;
    }

    .adv-icon {
        width: 28px;
        height: 28px;
        margin: 0 auto;
        display: flex;
        align-items: center;
        justify-content: center;
        border: 0;
        border-radius: 0;
        background: transparent;
        color: transparent;
        font-size: 25px;
        line-height: 1;
    }

    .adv-icon i {
        color: transparent;
        -webkit-text-stroke: 1px rgba(255,255,255,0.9);
        text-shadow: none;
    }

    .adv-label {
        max-width: 100%;
        color: rgba(255,255,255,0.92);
        font-size: 13px;
        font-weight: 600;
        line-height: 1.3;
        letter-spacing: -0.01em;
    }
}

@media (max-width: 480px) {
    .hero-advantages {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
    }
}

/* ==========================================================================
   SPACING & TYPOGRAPHY OPTIMIZATION OVERRIDES — about.css
   在不改变原有结构的基础上，增加模块间距、卡片留白、正文字体
   ========================================================================== */

/* ── section 标题 ── */
.section-title {
    font-size: 28px !important;
    margin-bottom: 32px !important;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

/* ── Who We Are 区域 ── */
.who-we-are {
    padding: 56px 0 0;
}
.who-we-are-grid {
    margin-bottom: 40px;
}
.sub-title {
    font-size: 13px;
    letter-spacing: 0.07em;
    margin-bottom: 10px;
}
.about-title {
    font-size: 36px;
    line-height: 1.1;
    margin-bottom: 22px;
}
.about-text {
    font-size: 15px;
    line-height: 1.75;
    margin-bottom: 18px;
}

/* ── About Stats Bar ── */
.about-stats-bar {
    padding: 28px 36px;
    margin-top: 8px;
}
.about-stat-num {
    font-size: 34px;
    margin-bottom: 6px;
}
.about-stat-title {
    font-size: 13px;
    margin-bottom: 3px;
}
.about-stat-desc {
    font-size: 12px;
    line-height: 1.4;
}

/* ── Why Choose Us 区域 ── */
.why-choose-us {
    padding: 64px 0 0;
}
.why-grid {
    gap: 20px;
}
.why-card {
    padding: 24px 20px 26px;
    min-height: 140px;
}
.why-icon {
    width: 40px;
    height: 40px;
    font-size: 22px;
    margin-bottom: 14px;
}
.why-title {
    font-size: 16px;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 10px;
}
.why-desc {
    font-size: 13px;
    line-height: 1.55;
    color: var(--color-text-muted);
}

/* ── Production & Development 区域 ── */
.prod-dev {
    padding: 64px 0 0;
}
.prod-dev-grid {
    gap: 24px;
}
.prod-dev-card {
    height: 340px;
}
.pd-content {
    padding: 0 22px 22px;
    background: rgba(0, 26, 58, 0.85);
}
.pd-title {
    font-size: 15px;
    font-weight: 800;
    line-height: 1.3;
}
.pd-desc {
    font-size: 12px;
    line-height: 1.6;
    color: #e6edf7;
    margin-top: 6px;
}

/* ── Certificates & Standards 区域 ── */
.certs-standards {
    padding: 64px 0 0;
}
.standards-grid {
    gap: 0;
}
.std-card {
    padding: 22px 16px;
    min-height: 100px;
    gap: 14px;
}
.std-title {
    font-size: 17px;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 5px;
}
.std-desc {
    font-size: 11px;
    line-height: 1.4;
    color: var(--color-text-muted);
}

/* ── Values & Principles 区域 ── */
.values-principles {
    padding: 64px 0 0;
}
.values-grid {
    gap: 0;
}
.value-item {
    padding: 22px 20px;
    gap: 16px;
}
.value-icon {
    width: 42px;
    height: 42px;
    font-size: 22px;
    flex-shrink: 0;
}
.value-title {
    font-size: 16px;
    font-weight: 800;
    margin-bottom: 5px;
    line-height: 1.3;
}
.value-desc {
    font-size: 12px;
    line-height: 1.5;
    color: var(--color-text-muted);
}
/* 保持 value-desc 缩进对齐图标 */
.values-grid .value-item .value-desc {
    padding-left: 58px;
    font-size: 13px;
    line-height: 1.5;
}

/* ── CTA 区域 ── */
.cta-banner-sec {
    margin: 64px 0 0;
    padding-bottom: 64px;
}
.cta-banner {
    padding: 44px 52px;
    min-height: 110px;
}
.cta-text h2 {
    font-size: 26px;
    font-weight: 900;
    margin-bottom: 10px;
}
.cta-text p {
    font-size: 14px;
    line-height: 1.65;
}

/* ── 响应式 ── */
@media (max-width: 768px) {
    .who-we-are { padding: 40px 0 0; }
    .why-choose-us,
    .prod-dev,
    .certs-standards,
    .values-principles { padding: 48px 0 0; }
    .prod-dev-card { height: 280px; }
    .cta-banner-sec { margin: 48px 0 0; padding-bottom: 48px; }
    .cta-banner { padding: 32px 24px; }
    .values-grid .value-item .value-desc { padding-left: 0; }
}