/* ===== About Page ===== */

.about-hero {
    position: relative;
    background: #1a1a1a;
    color: #fff;
    padding: 140px 0 100px;
    text-align: center;
    overflow: hidden;
}

.about-hero-bg {
    position: absolute;
    inset: 0;
    background: url('../image/about-banner.webp') center/cover no-repeat;
}

.about-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.45) 0%, rgba(0,0,0,0.55) 100%);
}

.about-hero .container {
    position: relative;
    z-index: 2;
}

.about-hero h1 {
    font-size: clamp(38px, 5vw, 60px);
    font-weight: 700;
    margin-bottom: 20px;
    color: #fff;
}

.about-hero p {
    font-size: 17px;
    color: rgba(255,255,255,0.9);
    max-width: 680px;
    margin: 0 auto;
    line-height: 1.8;
}

/* Shared section label / title */
.section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: #4a5a50;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.section-label.center {
    display: flex;
    justify-content: center;
}

.section-label svg {
    width: 18px;
    height: 18px;
    fill: #4a5a50;
    stroke: none;
}

.section-title {
    font-size: 38px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 20px;
    line-height: 1.2;
}

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

/* Our Story */
.story {
    background: #fff;
    padding: 100px 0;
}

.story-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.story-text h2 {
    font-size: 36px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 24px;
    line-height: 1.25;
}

.story-text p {
    font-size: 15px;
    color: #555;
    line-height: 1.85;
    margin-bottom: 18px;
}

.story-image {
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0,0,0,0.1);
}

.story-image img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    aspect-ratio: 16 / 9;
}

/* Stats */
.about-stats {
    background: #4a5a50;
    color: #fff;
    padding: 70px 0;
}

.about-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    text-align: center;
}

.about-stat h3 {
    font-size: 34px;
    font-weight: 700;
    margin-bottom: 10px;
}

.about-stat p {
    font-size: 14px;
    color: rgba(255,255,255,0.8);
    line-height: 1.6;
}

/* Factory Tour */
.factory-tour {
    background: #f5f8f6;
    padding: 100px 0;
}

.factory-masonry {
    column-count: 3;
    column-gap: 24px;
}

.tour-big {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 40px rgba(0,0,0,0.08);
    background: #e8ecea;
    break-inside: avoid;
    margin-bottom: 24px;
}

.tour-big img {
    width: 100%;
    height: auto;
    display: block;
}

.tour-big span {
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    padding: 14px 18px;
    background: linear-gradient(transparent, rgba(0,0,0,0.65));
    color: #fff;
    font-size: 15px;
    font-weight: 600;
}

.factory-cell {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 24px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    break-inside: avoid;
    background: #e8ecea;
}

.factory-cell img {
    width: 100%;
    height: auto;
    display: block;
}

.factory-cell span {
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    padding: 12px 16px;
    background: linear-gradient(transparent, rgba(0,0,0,0.65));
    color: #fff;
    font-size: 14px;
    font-weight: 600;
}

/* Services - Dark Section */
.service {
    padding: 100px 0;
    background: #1d2c29;
    color: #fff;
}

.service.oem {
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.service-header {
    max-width: 700px;
    margin-bottom: 55px;
}

.service-header.center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.service-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: rgba(255,255,255,0.65);
    text-transform: uppercase;
    margin-bottom: 16px;
}

.service-title {
    font-size: 38px;
    font-weight: 700;
    color: #fff;
    line-height: 1.2;
    margin: 0;
}

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

.service.odm .steps {
    grid-template-columns: repeat(3, 1fr);
}

.step {
    background: #eef3ef;
    border-radius: 22px;
    padding: 34px 26px;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
    color: #1a1a1a;
}

.step:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 45px rgba(0,0,0,0.25);
}

.step-icon {
    width: 44px;
    height: 44px;
    margin: 0 auto 18px;
    color: #1a1a1a;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-icon svg {
    width: 100%;
    height: 100%;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.step h4 {
    font-size: 18px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 14px;
    line-height: 1.3;
}

.step p {
    font-size: 13.5px;
    color: #555;
    line-height: 1.7;
}

.service-cta {
    text-align: center;
    margin-top: 45px;
}

.btn-service {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: transparent;
    color: #fff;
    border: 2px solid #fff;
    padding: 12px 28px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 14px;
    transition: background 0.2s, color 0.2s;
}

.btn-service:hover {
    background: #fff;
    color: #1d2c29;
}

/* Principle */
.principle {
    background: #fff;
    padding: 100px 0;
}

.principle-inner {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: center;
}

.principle-image {
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0,0,0,0.1);
}

.principle-image img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    aspect-ratio: 3 / 4;
}

.principle-lead {
    font-size: 16px;
    color: #555;
    margin-bottom: 28px;
}

.quality-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 22px;
}

.quality-list li h6 {
    font-size: 16px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 6px;
}

.quality-list li p {
    font-size: 14px;
    color: #666;
    line-height: 1.7;
}

/* Strength */
.strength {
    background: #f5f8f6;
    padding: 100px 0;
}

.strength-inner {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
}

.strength-text p {
    font-size: 15px;
    color: #555;
    line-height: 1.85;
    margin-bottom: 24px;
}

.strength-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.strength-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
    font-weight: 500;
    color: #1a1a1a;
}

.check-icon {
    width: 22px;
    height: 22px;
    background: #f0c84a;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #1a1a1a;
    flex-shrink: 0;
}

.check-icon svg {
    width: 12px;
    height: 12px;
    fill: none;
    stroke: currentColor;
    stroke-width: 3;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.strength-image {
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0,0,0,0.1);
}

.strength-image img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

/* Active nav */
.nav a.active {
    color: #f0c84a;
}

/* CTA Section */
.cta-section {
    position: relative;
    padding: 140px 0;
    overflow: hidden;
    color: #fff;
    background: #1a1a1a;
}

.cta-bg {
    position: absolute;
    inset: 0;
    background: url('../image/cta-bg.webp') center/cover no-repeat;
}

.cta-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(0,0,0,0.25) 0%, rgba(0,0,0,0.45) 50%, rgba(0,0,0,0.55) 100%);
}

.cta-content {
    position: relative;
    z-index: 2;
    max-width: 650px;
    margin-left: auto;
    text-align: left;
}

.cta-content h2 {
    font-size: 42px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 22px;
    color: #fff;
}

.cta-content p {
    font-size: 15px;
    color: rgba(255,255,255,0.85);
    line-height: 1.8;
    margin-bottom: 34px;
}

.cta-content .btn-quote {
    display: inline-block;
    background: #f0c84a;
    color: #1a1a1a;
    padding: 14px 32px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 15px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.cta-content .btn-quote:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(240,200,74,0.35);
}

/* Responsive */
@media (max-width: 1024px) {
    .steps,
    .service.odm .steps {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .story-inner,
    .principle-inner,
    .strength-inner {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-stats-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .factory-masonry {
        column-count: 2;
    }

    .steps,
    .service.odm .steps {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: 30px;
    }

    .service-title {
        font-size: 28px;
    }

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

    .cta-section {
        padding: 100px 0;
    }

    .cta-content {
        margin: 0 auto;
        text-align: center;
    }

    .cta-content h2 {
        font-size: 32px;
    }

    .cta-overlay {
        background: linear-gradient(180deg, rgba(0,0,0,0.25) 0%, rgba(0,0,0,0.55) 100%);
    }
}

@media (max-width: 480px) {
    .factory-masonry {
        column-count: 1;
    }

    .cta-content h2 {
        font-size: 28px;
    }
}