/* ===== 关于我们 — 全宽度现代化设计 ===== */

.about-main {
    width: 100%;
    min-height: calc(100vh - 200px);
    background: #fff;
    overflow-x: hidden;
}

/* ===== Hero 区域 - 全宽度 ===== */
.about-hero {
    width: 100%;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    color: #fff;
    padding: 80px 0;
    text-align: center;
}

.about-hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.about-title {
    font-size: 3rem;
    font-weight: 700;
    color: #fff;
    margin: 0 0 20px 0;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.about-lead {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin: 0;
    font-weight: 400;
    line-height: 1.6;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== 主要内容区域 - 全宽度区块设计 ===== */
.about-content-section {
    width: 100%;
    padding: 60px 0;
}

.about-content-section:nth-child(even) {
    background: #f8f8f8;
}

.about-container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 24px;
    box-sizing: border-box;
}

/* ===== 介绍文本区域 ===== */
.about-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-intro-text {
    font-size: 1.0625rem;
    color: #444;
    line-height: 1.8;
    margin: 0;
}

.about-intro-text + .about-intro-text {
    margin-top: 1.5em;
}

.about-inline-link {
    color: #1a1a1a;
    text-decoration: underline;
    text-underline-offset: 3px;
    font-weight: 500;
    transition: color 0.2s ease;
}

.about-inline-link:hover {
    color: #666;
}

/* ===== 公司信息卡片 ===== */
.about-info {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 40px;
    padding: 40px 0;
}

.about-info-row {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.about-info-label {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #888;
}

.about-info-value {
    font-size: 1rem;
    color: #1a1a1a;
    font-weight: 500;
}

.about-info-link {
    color: #1a1a1a;
    text-decoration: none;
    transition: color 0.2s ease;
}

.about-info-link:hover {
    color: #666;
    text-decoration: underline;
}

/* ===== 产品展示区域 ===== */
.about-showcase {
    width: 100%;
}

.about-heading {
    font-size: 2rem;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0 0 16px 0;
    letter-spacing: -0.01em;
}

.about-showcase-text {
    font-size: 1.0625rem;
    color: #666;
    line-height: 1.8;
    margin: 0 0 40px 0;
    max-width: 800px;
}

/* ===== 产品图片画廊 - 全宽度 ===== */
.about-gallery {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    margin: 0 0 40px 0;
    width: 100%;
}

.about-gallery-item {
    display: block;
    aspect-ratio: 1;
    border-radius: 12px;
    overflow: hidden;
    background: #f0f0f0;
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.about-gallery-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.about-gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.about-gallery-item:hover img {
    transform: scale(1.08);
}

/* ===== CTA 区域 ===== */
.about-cta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    padding: 60px 0;
}

.about-cta-btn {
    display: inline-block;
    padding: 16px 40px;
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    background: #1a1a1a;
    border: 2px solid #1a1a1a;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.3s ease;
    min-width: 180px;
    text-align: center;
}

.about-cta-btn:hover {
    background: #333;
    border-color: #333;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.about-cta-btn-outline {
    color: #1a1a1a;
    background: transparent;
}

.about-cta-btn-outline:hover {
    background: #1a1a1a;
    color: #fff;
    border-color: #1a1a1a;
}

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
    .about-hero {
        padding: 60px 0;
    }

    .about-title {
        font-size: 2.5rem;
    }

    .about-lead {
        font-size: 1.125rem;
    }

    .about-intro {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-info {
        grid-template-columns: repeat(3, 1fr);
        gap: 32px;
    }

    .about-gallery {
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
    }
}

@media (max-width: 768px) {
    .about-hero {
        padding: 48px 0;
    }

    .about-title {
        font-size: 2rem;
    }

    .about-lead {
        font-size: 1rem;
    }

    .about-content-section {
        padding: 40px 0;
    }

    .about-container {
        padding: 0 20px;
    }

    .about-intro-text {
        font-size: 1rem;
    }

    .about-info {
        grid-template-columns: 1fr;
        gap: 24px;
        padding: 32px 0;
    }

    .about-heading {
        font-size: 1.5rem;
    }

    .about-showcase-text {
        font-size: 1rem;
        margin-bottom: 32px;
    }

    .about-gallery {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
        margin-bottom: 32px;
    }

    .about-cta {
        padding: 40px 0;
        flex-direction: column;
    }

    .about-cta-btn {
        width: 100%;
        max-width: 320px;
    }
}

@media (max-width: 480px) {
    .about-hero {
        padding: 40px 0;
    }

    .about-title {
        font-size: 1.75rem;
    }

    .about-lead {
        font-size: 0.9375rem;
    }

    .about-content-section {
        padding: 32px 0;
    }

    .about-container {
        padding: 0 16px;
    }

    .about-intro-text {
        font-size: 0.9375rem;
        line-height: 1.7;
    }

    .about-info {
        gap: 20px;
        padding: 24px 0;
    }

    .about-heading {
        font-size: 1.25rem;
    }

    .about-showcase-text {
        font-size: 0.9375rem;
        margin-bottom: 24px;
    }

    .about-gallery {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
        margin-bottom: 24px;
    }

    .about-cta {
        padding: 32px 0;
    }

    .about-cta-btn {
        padding: 14px 32px;
        font-size: 0.9375rem;
    }
}