/* ===================================
   About Page Specific Styles
   =================================== */

/* Hero Section - 与首页完全一致 */
.about-hero {
    /* 继承首页hero的所有样式 */
}

.hero-tagline {
    margin-top: 30px;
}

.hero-tagline p {
    font-size: 24px;
    font-weight: 500;
    color: var(--text-white);
    letter-spacing: 1px;
}

/* Section Header Subtitle */
.section-subtitle {
    font-size: 16px;
    color: var(--text-light);
    font-weight: 400;
    text-align: center;
    margin-top: 10px;
}

/* Company Introduction */
.company-intro {
    padding: 100px 0;
    background: var(--bg-white);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 40px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.intro-content {
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-light);
    padding: 50px 60px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.intro-content p {
    font-size: 18px;
    line-height: 2;
    color: var(--text-dark);
    margin-bottom: 30px;
    text-align: justify;
}

.intro-content p:last-child {
    margin-bottom: 0;
}

/* Timeline Section - 简化为卡片式，去掉hover渐变条 */
.timeline-section {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg-white) 0%, var(--bg-light) 100%);
}

.timeline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.timeline-item {
    background: var(--bg-white);
    padding: 40px 30px;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    border: 2px solid transparent;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.timeline-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.timeline-year {
    font-size: 42px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
}

.timeline-content h3 {
    font-size: 18px;
    color: var(--text-dark);
    margin-bottom: 12px;
    font-weight: 700;
    line-height: 1.4;
}

.timeline-content p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
    margin: 0;
}

/* Mission & Vision */
.mission-vision {
    padding: 100px 0;
    background: var(--bg-light);
}

.mv-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 1100px;
    margin: 0 auto;
}

.mv-card {
    background: var(--bg-white);
    padding: 50px 45px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-base);
    position: relative;
    border: 2px solid transparent;
}

.mv-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.mv-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
}

.mv-icon i {
    font-size: 36px;
    color: var(--text-white);
}

.mv-card h3 {
    font-size: 28px;
    color: var(--text-dark);
    margin-bottom: 20px;
    font-weight: 800;
}

.en-label {
    font-size: 16px;
    font-weight: 400;
    color: var(--text-light);
    margin-left: 10px;
}

.mv-card p {
    font-size: 17px;
    line-height: 1.9;
    color: var(--text-dark);
}

/* Core Values Section */
.core-values-section {
    padding: 100px 0;
    background: var(--bg-white);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 25px;
    max-width: 1200px;
    margin: 0 auto;
}

.value-card {
    background: var(--bg-light);
    padding: 35px 25px;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition-base);
    border: 2px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.value-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 0;
}

.value-card:hover::before {
    opacity: 1;
}

.value-card:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.value-card:hover .value-icon {
    background: var(--bg-white);
}

.value-card:hover .value-icon i {
    color: var(--primary-color);
}

.value-card:hover h3,
.value-card:hover .value-en {
    color: var(--text-white);
}

.value-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: var(--transition-base);
    position: relative;
    z-index: 1;
}

.value-icon i {
    font-size: 30px;
    color: var(--text-white);
    transition: var(--transition-base);
}

.value-card h3 {
    font-size: 18px;
    color: var(--text-dark);
    margin-bottom: 10px;
    font-weight: 700;
    position: relative;
    z-index: 1;
    transition: var(--transition-base);
}

.value-en {
    font-size: 13px;
    color: var(--text-light);
    font-weight: 400;
    margin: 0;
    position: relative;
    z-index: 1;
    transition: var(--transition-base);
}

/* Qualifications Section */
.qualifications {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg-white) 0%, var(--bg-light) 100%);
}

.qualifications-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.qualification-card {
    background: var(--bg-white);
    padding: 45px 35px;
    border-radius: 20px;
    text-align: center;
    transition: var(--transition-base);
    box-shadow: var(--shadow-md);
    border: 2px solid transparent;
}

.qualification-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.qualification-icon {
    width: 90px;
    height: 90px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
    position: relative;
}

.qualification-icon::after {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border-radius: 50%;
    border: 2px solid var(--primary-light);
    opacity: 0;
    transition: var(--transition-base);
}

.qualification-card:hover .qualification-icon::after {
    opacity: 1;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
}

.qualification-icon i {
    font-size: 40px;
    color: var(--text-white);
}

.qualification-card h3 {
    font-size: 20px;
    color: var(--text-dark);
    margin-bottom: 18px;
    line-height: 1.5;
    font-weight: 700;
}

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

.license-number {
    font-weight: 700;
    color: var(--primary-color) !important;
    font-size: 18px !important;
    margin-top: 10px;
    display: block;
}

/* CTA Section */
.cta-section {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    color: var(--text-white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.05) 2px, transparent 2px);
    background-size: 50px 50px;
    animation: moveBackground 30s linear infinite;
}

@keyframes moveBackground {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(50px, 50px) rotate(360deg); }
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: 48px;
    color: var(--text-white);
    margin-bottom: 25px;
    font-weight: 800;
}

.cta-content p {
    font-size: 22px;
    margin-bottom: 40px;
    opacity: 0.95;
}

.btn-large {
    padding: 20px 50px;
    font-size: 18px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 15px;
    background: var(--text-white);
    color: var(--primary-color);
    border-radius: 50px;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-base);
}

.btn-large:hover {
    background: var(--secondary-color);
    color: var(--text-white);
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.btn-large i {
    transition: transform 0.3s ease;
}

.btn-large:hover i {
    transform: translateX(5px);
}

/* Responsive Design */
@media (max-width: 992px) {
    .timeline {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .values-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .qualifications-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-tagline p {
        font-size: 18px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .intro-content {
        padding: 35px 30px;
    }
    
    .intro-content p {
        font-size: 16px;
    }
    
    .timeline {
        grid-template-columns: 1fr;
    }
    
    .mv-grid {
        grid-template-columns: 1fr;
    }
    
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .qualifications-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-content h2 {
        font-size: 32px;
    }
    
    .cta-content p {
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .btn-large {
        padding: 16px 35px;
        font-size: 16px;
    }
}