/* 关于页面专属样式 */
.about-page-container {
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem 1.5rem 4rem;
    animation: fadeInUp 1.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.hero-banner {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    padding: 4.5rem 3rem;
    border-radius: 2rem;
    color: white;
    margin-bottom: 4rem;
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
    position: relative;
    overflow: hidden;
}

.hero-banner::after {
    content: '';
    position: absolute;
    top: -10%;
    right: -5%;
    width: 300px;
    height: 300px;
    background: rgba(255,255,255,0.05);
    border-radius: 50%;
}

/* 主题适配颜色变量 */
:root {
    --python-color: #3776ab;
    --django-color: #0b6440;
    --bootstrap-color: #7952b3;
    --chartjs-color: #ff6384;
    --datatables-color: #2e2e2e;
    --postgresql-color: #336791;
    --deepseek-color: #007BFF;
    --crawler-color: #2d029e;
    --redis-celery-color: #D82C20;
    --docker-color: #2496ED;
    --pandas-sklearn-color: #210883;
    --unused-color: #979797;
}

@media (prefers-color-scheme: dark) {
    :root {
        --python-color: #4b8bbe;
        --django-color: #44b78b;
        --bootstrap-color: #9461fb;
        --chartjs-color: #ff8fa3;
        --datatables-color: #ced4dd;
        --postgresql-color: #4e9bd4;
        --deepseek-color: #4da3ff;
        --crawler-color: #424ce7;
        --redis-celery-color: #ff5c5c;
        --docker-color: #38b1ff;
        --pandas-sklearn-color: #8c7ae6;
        --unused-color: #656565;
    }
}

.unused {
    color: var(--unused-color)!important;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.section-title .dot {
    width: 10px;
    height: 35px;
    background: var(--primary-color);
    border-radius: 5px;
}

.section-title h2 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--heading-color);
    margin: 0;
    text-align: left !important;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 5rem;
}

.grid-container > div, .team-container > div, .contact-container > div {
    display: flex;
    flex-direction: column;
}

.tech-card, .member-card, .contact-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 1.5rem;
    border: 2px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    box-shadow: var(--shadow);
    height: 100%;
}

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

.contact-card:hover {
    box-shadow: var(--card-shadow);
    border-color: var(--primary-color);
}

.tech-card h4, .contact-card h4 {
    font-size: 1.25rem;
    color: var(--primary-color);
    margin: 0;
}

.tech-card p, .contact-card p, .member-desc {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--muted-text);
    margin: 0;
}

.team-container, .contact-container {
    display: grid;
    gap: 2.5rem;
}

.team-container {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    margin-bottom: 5rem;
}

.contact-container {
    grid-template-columns: 1fr; /* 每一行只有一个卡片 */
}

.role-badge {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--muted-text);
    font-weight: 700;
    display: block;
    margin-bottom: 0.5rem;
}

.member-name {
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: 1rem;
    display: block;
}

.member-desc {
    color: var(--text-color);
    line-height: 1.8;
    font-size: 1rem;
    opacity: 0.9;
}

.about-page-container footer {
    margin-top: 6rem;
    padding-top: 3rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--muted-text);
    font-size: 0.9rem;
}