* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Ma Shan Zheng', cursive, 'Microsoft YaHei', sans-serif;
    background: url('img/pic.jpg') center center/cover no-repeat fixed, linear-gradient(120deg, #f8fafc 0%, #e9ecef 100%);
    min-height: 100vh;
    margin: 0;
    padding: 0;
    color: #222;
}

.main-layout {
    display: flex;
    min-height: 90vh;
    max-width: 1200px;
    margin: 40px auto 0 auto;
    box-sizing: border-box;
    gap: 40px;
    justify-content: center;
}

.sidebar {
    width: 320px;
    min-width: 260px;
    background: rgba(255,255,255,0.7);
    border-radius: 24px;
    box-shadow: 0 4px 32px rgba(0,0,0,0.06);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 40px 20px 30px 20px;
    margin-bottom: 30px;
    backdrop-filter: blur(6px);
}

.profile-section {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.avatar-container {
    margin-bottom: 18px;
}

.avatar {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    border: 4px solid #e0e0e0;
    transition: transform 0.6s;
    cursor: pointer;
    object-fit: cover;
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}
.avatar:hover {
    transform: rotate(360deg);
}

.site-title {
    font-size: 2.5rem;
    color: #333;
    font-family: 'Ma Shan Zheng', cursive, 'Microsoft YaHei', sans-serif;
    margin-bottom: 18px;
    font-weight: normal;
    letter-spacing: 2px;
    text-shadow: 1px 2px 8px #fff, 0 1px 0 #bbb;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 18px;
    margin-bottom: 0;
    flex-wrap: wrap;
}
.social-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: #555;
    padding: 12px 10px;
    border-radius: 12px;
    background: rgba(240,240,240,0.7);
    border: 1px solid #e0e0e0;
    transition: all 0.2s;
    min-width: 50px;
    font-size: 0.95rem;
}
.social-link:hover {
    background: #f1f3f5;
    color: #222;
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}
.social-link i {
    font-size: 1.3rem;
    margin-bottom: 5px;
}

/* 右侧内容区 */
.content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    min-height: 600px;
    /* 你可以根据需要调整min-height */
}

.cards-container.vertical {
    display: flex;
    flex-direction: column;
    gap: 28px;
    margin-top: 10px;
}

.card {
    background: rgba(255,255,255,0.85);
    border-radius: 18px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.07);
    border: 1px solid #e0e0e0;
    padding: 18px 18px 14px 18px;
    text-align: center;
    transition: all 0.25s;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    width: 98%;
    max-width: 350px;
    min-height: 180px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 12px 32px rgba(0,0,0,0.13);
    background: #f8fafc;
}
.card-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #b2d0ff, #b6e0d4);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    transition: transform 0.3s;
    box-shadow: 0 2px 8px rgba(0,0,0,0.07);
    margin-bottom: 10px;
}
.card:hover .card-icon {
    transform: scale(1.1);
}
.card-icon i {
    font-size: 1.4rem;
    color: #fff;
}
.card h3 {
    font-size: 1.15rem;
    margin-bottom: 6px;
}
.card p {
    font-size: 0.98rem;
    margin-bottom: 10px;
}
.card-link {
    display: inline-block;
    /* padding: 6px 20px;
    background: #e9ecef;
    color: #333;
    border: 1px solid #d0d0d0;
    border-radius: 20px; */
    text-decoration: none;
    transition: all 0.2s;
    font-size: 0.98rem;
}

/* 页脚 */
.footer {
    width: 100%;
    text-align: center;
    color: #888;
    font-size: 1rem;
    padding: 24px 0 18px 0;
    background: transparent;
    letter-spacing: 1px;
}

/* 响应式设计 */
@media (max-width: 900px) {
    .main-layout {
        flex-direction: column;
        gap: 0;
        align-items: center;
    }
    .sidebar {
        width: 100%;
        min-width: 0;
        margin-bottom: 0;
        border-radius: 0 0 24px 24px;
        box-shadow: none;
    }
    .content {
        width: 100%;
        padding: 0 10px;
    }
}
@media (max-width: 600px) {
    .main-layout {
        margin: 0;
    }
    .sidebar {
        padding: 40px 6px 18px 6px;
        border-radius: 0;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    .profile-section {
        align-items: center;
        justify-content: center;
    }
    .site-title {
        font-size: 1.5rem;
        text-align: center;
    }
    .avatar {
        width: 125px;
        height: 125px;
        margin-top: 10px;
        margin-bottom: 18px;
    }
    .cards-container.vertical {
        gap: 16px;
    }
    .card {
        padding: 18px 8px 16px 8px;
    }
    .footer {
        font-size: 0.9rem;
        padding: 14px 0 10px 0;
    }
    .skills-box {
        width: 80%;
        margin: 0 auto 10px auto;
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        align-items: center;
    }
    .skill-badge {
        min-width: 60px;
        max-width: 120px;
        padding: 4px 10px;
        margin: 4px 6px;
        font-size: 1rem;
        text-align: center;
        box-sizing: border-box;
    }
}

.skills-box {
    width: 90%;
    margin: 0 auto 10px auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
}
.skill-badge {
    min-width: 70px;
    max-width: 140px;
    padding: 6px 14px;
    margin: 6px 10px;
    font-size: 1.05rem;
    text-align: center;
    box-sizing: border-box;
    border-radius: 18px;
    background: #f5f5f5;
    transition: background 0.2s;
}

/* 添加一些动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.profile-section,
.social-links,
.cards-container {
    animation: fadeInUp 0.8s ease-out;
}

.cards-container {
    animation-delay: 0.2s;
}

.cards-container.grid-2col {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 28px 36px;
    margin-top: 10px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}
.cards-container.grid-2col .card {
    min-width: 0;
}
@media (max-width: 1100px) {
    .cards-container.grid-2col {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: repeat(3, 1fr);
    }
}
@media (max-width: 700px) {
    .cards-container.grid-2col {
        grid-template-columns: 1fr;
        grid-template-rows: none;
    }
    .card {
        max-width: 98vw;
    }
}

@media (min-width: 900px) {
    .sidebar {
        position: sticky;
        top: 40px;
        align-self: flex-start;
        z-index: 10;
    }
}