/* 个人简介卡片样式 */
.profile-section {
    padding: 140px 0 120px;
    background: linear-gradient(180deg, #070d17 0%, #0a1525 50%, #0d1c33 100%);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.profile-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse 80% 50% at 50% 0%, rgba(56, 189, 248, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 80% 80%, rgba(14, 165, 233, 0.06) 0%, transparent 50%);
    pointer-events: none;
}

.profile-section .container {
    position: relative;
    z-index: 2;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 3rem;
    position: relative;
    z-index: 10;
    letter-spacing: -1px;
    color: #ffffff;
}

.section-title::after {
    content: '';
    display: block;
    width: 48px;
    height: 3px;
    background: linear-gradient(135deg, #38bdf8, #7dd3fc, #e0f2fe);
    margin: 1rem auto 0;
    border-radius: 2px;
    opacity: 0.8;
}

.section-subtitle {
    font-size: 1.1rem;
    opacity: 0.75;
    margin-bottom: 2rem;
    font-weight: 400;
}

.profile-card {
    max-width: 520px;
    margin: 0 auto;
    padding: 3rem 2.5rem;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 24px;
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    position: relative;
    z-index: 10;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.4s ease;
    animation: fadeInUp 0.8s ease-out;
}

.profile-card:hover {
    transform: translateY(-4px);
    box-shadow:
        0 16px 48px rgba(0, 0, 0, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.profile-card h1,
.profile-card p,
.profile-card h2,
.profile-card h3 {
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

.avatar {
    width: 112px;
    height: 112px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid rgba(255, 255, 255, 0.2);
    box-shadow:
        0 4px 16px rgba(0, 0, 0, 0.2),
        0 0 0 4px rgba(255, 255, 255, 0.05);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.avatar:hover {
    transform: scale(1.05);
    box-shadow:
        0 8px 24px rgba(0, 0, 0, 0.25),
        0 0 0 4px rgba(255, 255, 255, 0.1);
}

.profile-card h1 {
    font-size: 2.25rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.subtitle {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.65);
    margin-bottom: 1.25rem;
    font-weight: 500;
}

.description {
    font-size: 1rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2rem;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.social-links-inline {
    display: flex;
    justify-content: center;
    gap: 1.25rem;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.7);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: background 0.3s ease, color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.social-link:hover {
    color: white;
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}