/* ========== 关于我们页面专用样式 ========== */

/* 公司简介 */
.about-intro.full-width {
    max-width: none;
    padding: 0;
}

.intro-text h2 {
    color: var(--primary);
    margin-bottom: 24px;
    font-size: 2.2rem;
    font-weight: 700;
}

.intro-text p {
    margin-bottom: 20px;
    line-height: 1.8;
    color: var(--text-secondary);
    font-size: 1.05rem;
}

/* 统计网格 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 24px;
    margin-top: 40px;
    text-align: center;
}

.stat-card {
    padding: 28px 20px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: all var(--duration) var(--ease-out);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-alpha);
}

.stat-card .stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 10px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-card .stat-label {
    display: block;
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
}

/* 核心优势 */
.core-advantages {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 28px;
    margin-top: 40px;
}

.advantage-card {
    text-align: center;
    padding: 44px 24px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: all var(--duration) var(--ease-out);
}

.advantage-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-alpha);
}

.advantage-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-gradient);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: #fff;
    font-size: 2rem;
    box-shadow: 0 8px 24px rgba(12, 79, 150, 0.25);
    transition: transform var(--duration) var(--ease-out);
}

.advantage-card:hover .advantage-icon {
    transform: scale(1.08) rotate(-5deg);
}

.advantage-card h3 {
    color: var(--primary);
    margin-bottom: 14px;
    font-size: 1.4rem;
    font-weight: 600;
}

.advantage-card p {
    color: var(--text-secondary);
    margin-bottom: 0;
    line-height: 1.7;
    font-size: 0.95rem;
}

/* 团队介绍 */
.team-section {
    margin-top: 60px;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 28px;
    margin-top: 40px;
}

.team-member {
    text-align: center;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: all var(--duration) var(--ease-out);
    padding: 40px 24px;
}

.team-member:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-alpha);
}

.team-member .member-photo {
    width: 180px;
    height: 180px;
    border-radius: var(--radius-full);
    overflow: hidden;
    margin: 0 auto 20px;
    border: 4px solid var(--border-light);
    transition: border-color var(--duration) var(--ease-out);
}

.team-member:hover .member-photo {
    border-color: var(--primary-alpha);
}

.team-member .member-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--duration-slow) var(--ease-out);
}

.team-member:hover .member-photo img {
    transform: scale(1.08);
}

.team-member h4 {
    color: var(--text);
    margin: 16px 0 6px;
    font-size: 1.3rem;
    font-weight: 600;
}

.team-member .member-role {
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 12px;
    font-size: 0.95rem;
}

.team-member .member-desc {
    color: var(--text-secondary);
    margin-bottom: 0;
    font-size: 0.9rem;
    line-height: 1.6;
}

/* 荣誉资质 */
.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 28px;
    margin-top: 40px;
}

.certification-item {
    text-align: center;
    padding: 36px 20px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: all var(--duration) var(--ease-out);
}

.certification-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-alpha);
}

.cert-icon {
    width: 80px;
    height: 80px;
    background: var(--accent-gradient);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: #fff;
    font-size: 2rem;
    box-shadow: 0 8px 24px rgba(212, 168, 83, 0.3);
    transition: transform var(--duration) var(--ease-out);
}

.certification-item:hover .cert-icon {
    transform: scale(1.08) rotate(5deg);
}

.certification-item h4 {
    color: var(--primary);
    margin-bottom: 10px;
    font-size: 1.3rem;
    font-weight: 600;
}

.certification-item p {
    color: var(--text-secondary);
    margin-bottom: 0;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* 发展历程 - 时间线 */
.timeline-section {
    margin-top: 60px;
}

.timeline {
    position: relative;
    margin-top: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--primary-gradient);
    transform: translateX(-50%);
    border-radius: 2px;
}

.timeline-item {
    display: flex;
    margin-bottom: 48px;
    position: relative;
}

.timeline-item::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 8px;
    width: 16px;
    height: 16px;
    background: var(--primary);
    border: 4px solid var(--bg);
    border-radius: var(--radius-full);
    transform: translateX(-50%);
    box-shadow: 0 0 0 3px rgba(12, 79, 150, 0.2);
    z-index: 1;
}

.timeline-year {
    width: 45%;
    text-align: right;
    padding-right: 40px;
    font-weight: 700;
    color: var(--primary);
    font-size: 1.3rem;
    padding-top: 4px;
}

.timeline-content {
    width: 45%;
    padding-left: 40px;
    margin-left: 10%;
    background: var(--bg-card);
    padding: 24px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: all var(--duration) var(--ease-out);
}

.timeline-content:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    border-color: var(--primary-alpha);
}

.timeline-content h4 {
    color: var(--primary);
    margin-bottom: 10px;
    font-size: 1.3rem;
    font-weight: 600;
}

.timeline-content p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 0;
    font-size: 0.95rem;
}

/* 加入我们 CTA */
.join-us {
    background: var(--primary-gradient);
    color: #fff;
    border-radius: var(--radius-lg);
    padding: 64px 48px;
    text-align: center;
    margin-top: 60px;
    position: relative;
    overflow: hidden;
}

.join-us::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-full);
}

.join-us::after {
    content: '';
    position: absolute;
    bottom: -80px;
    left: -80px;
    width: 250px;
    height: 250px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-full);
}

.join-us h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.join-us p {
    font-size: 1.1rem;
    margin-bottom: 32px;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

.join-us .btn {
    background: #fff;
    color: var(--primary);
    padding: 14px 36px;
    border-radius: 50px;
    font-weight: 600;
    position: relative;
    z-index: 1;
}

.join-us .btn:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .core-advantages {
        grid-template-columns: repeat(2, 1fr);
    }

    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .certifications-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .join-us {
        padding: 48px 32px;
    }
}

@media (max-width: 768px) {
    .intro-text h2 {
        font-size: 2rem;
    }

    .core-advantages {
        grid-template-columns: 1fr;
    }

    .team-grid {
        grid-template-columns: 1fr;
    }

    .certifications-grid {
        grid-template-columns: 1fr;
    }

    .team-member .member-photo {
        width: 140px;
        height: 140px;
    }

    /* 时间线移动端适配 */
    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        flex-direction: column;
        align-items: flex-start;
    }

    .timeline-item::after {
        left: 20px;
    }

    .timeline-year {
        width: auto;
        text-align: left;
        padding-right: 0;
        padding-left: 48px;
        margin-bottom: 12px;
    }

    .timeline-content {
        width: 100%;
        margin-left: 0;
        padding-left: 48px;
        padding: 20px 24px 20px 48px;
    }

    .join-us {
        padding: 40px 24px;
    }

    .join-us h3 {
        font-size: 1.6rem;
    }
}

@media (max-width: 480px) {
    .intro-text h2 {
        font-size: 1.8rem;
    }

    .advantage-icon {
        width: 64px;
        height: 64px;
        font-size: 1.6rem;
    }

    .advantage-card h3 {
        font-size: 1.2rem;
    }

    .cert-icon {
        width: 64px;
        height: 64px;
        font-size: 1.6rem;
    }

    .certification-item h4 {
        font-size: 1.2rem;
    }

    .timeline-content h4 {
        font-size: 1.2rem;
    }

    .join-us {
        padding: 32px 16px;
    }

    .join-us h3 {
        font-size: 1.4rem;
    }

    .join-us p {
        font-size: 0.95rem;
    }
}