/* ============================================
   QIANMIAO PEPTIDES - About Page Styles
   ============================================ */

/* Page Header */
.page-header {
    position: relative;
    padding: calc(var(--topbar-height) + var(--header-height) + 60px) 0 60px;
    background: url('https://images.unsplash.com/photo-1532187863486-abf9dbad1b69?w=1920&q=80') center center / cover no-repeat;
}
.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 119, 179, 0.92) 0%, rgba(0, 149, 222, 0.88) 100%);
}
.page-header .container {
    position: relative;
    z-index: 1;
}
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 16px;
}
.breadcrumb a { color: rgba(255,255,255,0.8); transition: color var(--transition); }
.breadcrumb a:hover { color: white; }
.breadcrumb-sep { color: rgba(255,255,255,0.4); }
.breadcrumb-current { color: white; }
.page-title {
    font-size: 42px;
    font-weight: 700;
    color: white;
    margin-bottom: 12px;
}
.page-subtitle {
    font-size: 18px;
    color: rgba(255,255,255,0.85);
    max-width: 600px;
}

@media (max-width: 768px) {
    .page-header { padding: calc(var(--header-height) + 40px) 0 40px; }
    .page-title { font-size: 28px; }
    .page-subtitle { font-size: 15px; }
}

/* Introduction Section */
.intro-section {
    padding: 80px 0;
    background: white;
}
.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.intro-text {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
}
.intro-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--color-border-light);
}
.intro-stat {
    text-align: center;
}
.intro-stat-value {
    display: block;
    font-size: 32px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 4px;
}
.intro-stat-label {
    font-size: 13px;
    color: var(--color-text-muted);
}
.intro-image {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
}
.intro-image img {
    width: 100%;
    height: auto;
    display: block;
}
.intro-image-badge {
    position: absolute;
    bottom: 20px;
    left: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: white;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
    box-shadow: var(--shadow-lg);
}
.intro-image-badge .icon { width: 20px; height: 20px; }

@media (max-width: 992px) {
    .intro-grid { grid-template-columns: 1fr; gap: 40px; }
    .intro-stats { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 576px) {
    .intro-stats { grid-template-columns: 1fr 1fr; }
    .intro-stat-value { font-size: 24px; }
}

/* Mission Section */
.mission-section {
    padding: 80px 0;
    background: var(--color-bg-light);
}
.mission-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.mission-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: 40px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}
.mission-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
.mission-icon {
    width: 72px;
    height: 72px;
    background: var(--color-bg-card);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}
.mission-icon .icon {
    width: 32px;
    height: 32px;
    color: var(--color-primary);
}
.mission-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 12px;
}
.mission-text {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

@media (max-width: 992px) {
    .mission-grid { grid-template-columns: 1fr; }
}

/* Why Choose Us Section */
.why-section {
    padding: 80px 0;
    background: white;
}
.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.why-card {
    background: var(--color-bg-light);
    border-radius: var(--radius-xl);
    padding: 32px;
    border: 1px solid var(--color-border-light);
    transition: all var(--transition);
}
.why-card:hover {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-md);
}
.why-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-card);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}
.why-icon .icon {
    width: 28px;
    height: 28px;
    color: white;
}
.why-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 10px;
}
.why-text {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

@media (max-width: 992px) {
    .why-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 576px) {
    .why-grid { grid-template-columns: 1fr; }
}

/* Facility Section */
.facility-section {
    padding: 80px 0;
    background: var(--color-bg-light);
}
.facility-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(2, 200px);
    gap: 20px;
}
.facility-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
}
.facility-item.large {
    grid-column: span 2;
    grid-row: span 2;
}
.facility-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.facility-item:hover img {
    transform: scale(1.05);
}
.facility-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 100%);
    color: white;
}
.facility-label {
    display: block;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}
.facility-desc {
    font-size: 13px;
    color: rgba(255,255,255,0.8);
}

@media (max-width: 992px) {
    .facility-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: auto;
    }
    .facility-item { height: 200px; }
    .facility-item.large {
        grid-column: span 2;
        grid-row: span 1;
        height: 280px;
    }
}
@media (max-width: 576px) {
    .facility-grid { grid-template-columns: 1fr; }
    .facility-item.large { grid-column: span 1; height: 250px; }
}

/* Certifications Section */
.cert-section {
    padding: 80px 0;
    background: white;
}
.cert-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}
.cert-card {
    text-align: center;
    padding: 40px 24px;
    background: var(--color-bg-light);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border-light);
    transition: all var(--transition);
}
.cert-card:hover {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-md);
}
.cert-icon {
    width: 64px;
    height: 64px;
    background: var(--color-bg-card);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}
.cert-icon .icon {
    width: 28px;
    height: 28px;
    color: var(--color-primary);
}
.cert-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 6px;
}
.cert-text {
    font-size: 13px;
    color: var(--color-text-muted);
}

@media (max-width: 992px) {
    .cert-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 576px) {
    .cert-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
    .cert-card { padding: 24px 16px; }
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background: var(--gradient-card);
}
.cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}
.cta-content { color: white; }
.cta-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    color: white;
}
.cta-text {
    font-size: 16px;
    color: rgba(255,255,255,0.85);
}
.cta-actions {
    display: flex;
    gap: 12px;
    flex-shrink: 0;
}
.btn-white {
    background: white;
    color: var(--color-primary);
}
.btn-white:hover {
    background: rgba(255,255,255,0.9);
}

@media (max-width: 768px) {
    .cta-inner {
        flex-direction: column;
        text-align: center;
    }
    .cta-actions { width: 100%; justify-content: center; }
}

/* ============================================
   LAB PHOTO GALLERY
============================================ */
.gallery-subtitle {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 24px;
    text-align: center;
}
.lab-gallery {
    position: relative;
}
.lab-photo-carousel {
    display: flex;
    gap: 32px;
    overflow-x: auto;
    scroll-behavior: smooth;
    padding: 10px 10px 28px;
    scrollbar-width: none;
    -ms-overflow-style: none;
}
.lab-photo-carousel::-webkit-scrollbar {
    display: none;
}
.lab-photo-item {
    flex: 0 0 auto;
    width: 450px;
    text-align: center;
}
.lab-photo-item img {
    width: 100%;
    height: 340px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}
.lab-photo-item:hover img {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}
.lab-photo-label {
    display: block;
    margin-top: 16px;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
}
.carousel-nav {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 28px;
}
.carousel-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: white;
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}
.carousel-btn:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}
.carousel-btn .icon {
    width: 22px;
    height: 22px;
}

@media (max-width: 992px) {
    .lab-photo-carousel {
        gap: 24px;
    }
    .lab-photo-item {
        width: 380px;
    }
    .lab-photo-item img {
        height: 290px;
    }
}

@media (max-width: 768px) {
    .lab-photo-carousel {
        gap: 18px;
        padding: 10px 5px 22px;
    }
    .lab-photo-item {
        width: 300px;
    }
    .lab-photo-item img {
        height: 230px;
    }
    .lab-photo-label {
        font-size: 14px;
        margin-top: 12px;
    }
    .carousel-btn {
        width: 44px;
        height: 44px;
    }
    .carousel-btn .icon {
        width: 18px;
        height: 18px;
    }
}

@media (max-width: 480px) {
    .lab-photo-carousel {
        gap: 14px;
    }
    .lab-photo-item {
        width: 260px;
    }
    .lab-photo-item img {
        height: 200px;
    }
}