/* ===========================================
   关于页专用样式 - 暖色企业商务风
   =========================================== */

main {
    padding-top: 72px;
    background: var(--bg-primary);
}

/* ===========================================
   Hero Section
   =========================================== */

.about-hero {
    background: linear-gradient(135deg, #D97706 0%, #F59E0B 40%, #FB923C 100%);
    padding: 120px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.about-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.about-hero::after {
    content: '';
    position: absolute;
    bottom: -40%;
    right: -15%;
    width: 50%;
    height: 180%;
    background: radial-gradient(ellipse, rgba(255, 255, 255, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.about-hero-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    position: relative;
    z-index: 1;
}

.about-hero-tag {
    display: inline-flex;
    align-items: center;
    padding: 6px 20px;
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 24px;
    backdrop-filter: blur(4px);
}

.about-hero-title {
    font-family: var(--font-display);
    font-size: 48px;
    font-weight: 700;
    color: var(--text-white);
    line-height: 1.3;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.about-hero-subtitle {
    font-size: 18px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
    max-width: 560px;
    margin: 0 auto;
}

/* ===========================================
   Shared Container
   =========================================== */

.about-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* ===========================================
   Company Profile
   =========================================== */

.about-profile {
    padding: var(--space-2xl) 0;
    background: var(--bg-white);
}

.profile-grid {
    display: flex;
    gap: 60px;
    align-items: flex-start;
}

.profile-text {
    flex: 0 0 58%;
}

.profile-text p {
    font-size: 16px;
    line-height: 1.9;
    color: var(--text-secondary);
    margin-bottom: 18px;
}

.profile-text p:first-child {
    font-size: 17px;
    color: var(--text-primary);
    font-weight: 500;
}

.profile-text p:last-child {
    margin-bottom: 0;
}

.profile-stats {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.stat-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 28px 20px;
    text-align: center;
    transition: all var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-light);
}

.stat-number {
    font-family: var(--font-display);
    font-size: 36px;
    font-weight: 700;
    color: var(--accent-hover);
    line-height: 1.1;
    margin-bottom: 6px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===========================================
   Core Values
   =========================================== */

.about-values {
    padding: var(--space-2xl) 0;
    background: var(--bg-primary);
}

.values-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.value-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 36px 32px;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.value-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #F59E0B, #FB923C);
    border-radius: 16px 16px 0 0;
}

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

.value-icon {
    width: 52px;
    height: 52px;
    background: var(--accent-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.value-icon i {
    font-size: 22px;
    color: var(--accent-hover);
}

.value-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.value-card p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin: 0;
}

/* ===========================================
   History Timeline
   =========================================== */

.about-timeline {
    padding: var(--space-2xl) 0;
    background: var(--bg-white);
}

.timeline-scroll {
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 16px;
    margin: 0 calc(-1 * var(--space-md));
    padding-left: var(--space-md);
    padding-right: var(--space-md);
}

.timeline-scroll::-webkit-scrollbar {
    height: 6px;
}

.timeline-scroll::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 3px;
}

.timeline-scroll::-webkit-scrollbar-thumb {
    background: var(--accent-light);
    border-radius: 3px;
}

.timeline-scroll::-webkit-scrollbar-thumb:hover {
    background: var(--accent-color);
}

.timeline-track {
    display: flex;
    gap: 24px;
    min-width: max-content;
    padding: 8px 0 8px;
}

.timeline-card {
    min-width: 280px;
    max-width: 300px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px 28px;
    scroll-snap-align: start;
    position: relative;
    transition: all var(--transition-normal);
}

.timeline-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.timeline-card-highlight {
    background: var(--accent-light);
    border-color: var(--accent-color);
}

.timeline-card-highlight .timeline-year-badge {
    background: var(--accent-gradient);
    color: var(--text-white);
}

.timeline-year-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 18px;
    background: var(--bg-white);
    border: 2px solid var(--accent-color);
    border-radius: var(--radius-full);
    font-size: 15px;
    font-weight: 700;
    color: var(--accent-hover);
    margin-bottom: 18px;
}

.timeline-card h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.timeline-card p {
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin: 0;
}

/* ===========================================
   Contact Section
   =========================================== */

.about-contact {
    padding: var(--space-2xl) 0;
    background: #FFFBEB;
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.contact-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 36px 28px;
    text-align: center;
    transition: all var(--transition-normal);
}

.contact-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.contact-icon {
    width: 56px;
    height: 56px;
    background: var(--accent-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
}

.contact-icon i {
    font-size: 22px;
    color: var(--accent-hover);
}

.contact-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 8px;
}

.contact-value {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.6;
    word-break: break-all;
}

/* ===========================================
   Responsive
   =========================================== */

@media (max-width: 768px) {
    main {
        padding-top: 64px;
    }

    .about-hero {
        padding: 80px 0 60px;
    }

    .about-hero-title {
        font-size: 32px;
    }

    .about-hero-subtitle {
        font-size: 16px;
    }

    .about-profile,
    .about-values,
    .about-timeline,
    .about-contact {
        padding: var(--space-xl) 0;
    }

    .profile-grid {
        flex-direction: column;
        gap: 36px;
    }

    .profile-text {
        flex: none;
    }

    .profile-stats {
        width: 100%;
    }

    .values-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .value-card {
        padding: 28px 24px;
    }

    .contact-cards {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .section-title {
        font-size: 26px;
    }
}

@media (max-width: 480px) {
    main {
        padding-top: 56px;
    }

    .about-hero {
        padding: 64px 0 48px;
    }

    .about-hero-title {
        font-size: 28px;
    }

    .about-hero-subtitle {
        font-size: 15px;
    }

    .profile-stats {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .stat-card {
        padding: 20px 16px;
    }

    .stat-number {
        font-size: 28px;
    }

    .timeline-card {
        min-width: 260px;
    }

    .value-card {
        padding: 24px 20px;
    }
}