/* ========================================
   SECTION 6: ABOUT - 关于（优秀设计参考布局）
   ======================================== */
.section-about {
    background: var(--color-bg-secondary);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    padding-top: calc(var(--nav-height) + var(--spacing-md));
    padding-bottom: var(--spacing-md);
    position: relative;
    overflow: hidden;
}

.section-about .section-header {
    margin-bottom: var(--spacing-lg);
}

/* 简洁的背景装饰 - 与其他 section 保持一致的风格 */
.about-bg-decoration {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
    /* 微妙的点状图案背景 - 与 songs section 呼应 */
    background-image: 
        radial-gradient(circle, rgba(201, 169, 97, 0.08) 1px, transparent 1px),
        radial-gradient(circle, rgba(201, 169, 97, 0.04) 0.5px, transparent 0.5px);
    background-size: 40px 40px, 20px 20px;
    background-position: 0 0, 20px 20px;
    opacity: 0.3;
}

/* 亮色主题下的背景装饰增强 */
.theme-light .about-bg-decoration {
    background-image: 
        radial-gradient(circle, rgba(166, 124, 61, 0.12) 1px, transparent 1px),
        radial-gradient(circle, rgba(166, 124, 61, 0.06) 0.5px, transparent 0.5px);
    opacity: 0.4;
}

.about-bg-decoration::before {
    content: '';
    position: absolute;
    top: 10%;
    right: 5%;
    width: 300px;
    height: 300px;
    background: radial-gradient(
        circle at center,
        rgba(201, 169, 97, 0.06) 0%,
        transparent 60%
    );
    filter: blur(60px);
}

.about-bg-decoration::after {
    content: '';
    position: absolute;
    bottom: 10%;
    left: 5%;
    width: 250px;
    height: 250px;
    background: radial-gradient(
        circle at center,
        rgba(201, 169, 97, 0.05) 0%,
        transparent 60%
    );
    filter: blur(50px);
}

/* 主内容区域 - 充分利用空间 */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    max-width: var(--max-width);
    width: 100%;
    margin: 0 auto;
    padding: var(--spacing-md);
    position: relative;
    z-index: 2;
}

/* 装饰性分隔线 */
.about-content::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 1px;
    background: linear-gradient(
        to bottom,
        transparent 0%,
        var(--color-line) 10%,
        var(--color-line) 90%,
        transparent 100%
    );
    opacity: 0.3;
    transform: translateX(-50%);
    z-index: 1;
}

@media (max-width: 768px) {
    .about-content::before {
        display: none;
    }
}

/* 左侧：照片和基本信息 */
.about-portrait {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    position: relative;
    z-index: 2;
}

/* 横向的肖像框 - 静态展示 */
.portrait-frame {
    position: relative;
    border: var(--border-thin);
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--color-bg-elevated);
    box-shadow: var(--shadow-md);
    aspect-ratio: 4 / 3;
    width: 100%;
}

/* 装饰性内边框 */
.portrait-frame::before {
    content: '';
    position: absolute;
    inset: 1px;
    border: 1px solid rgba(201, 169, 97, 0.1);
    border-radius: calc(var(--radius-md) - 1px);
    pointer-events: none;
    z-index: 1;
}

.portrait-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.portrait-meta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    position: relative;
    padding-left: var(--spacing-sm);
}

/* 装饰性左边框 */
.portrait-meta::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(
        to bottom,
        var(--color-accent-gold),
        transparent
    );
    opacity: 0.4;
}

.portrait-meta .meta-label {
    letter-spacing: 0.2em;
    text-transform: uppercase;
    font-size: 0.7rem;
    color: var(--color-text-muted);
    font-family: var(--font-sans);
    font-weight: 300;
    position: relative;
}

.portrait-meta .meta-desc {
    font-size: 1.1rem;
    color: var(--color-text-primary);
    font-family: var(--font-serif);
    font-weight: 400;
    line-height: 1.4;
    position: relative;
}

/* 右侧：简介和联系信息 */
.about-text {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    justify-content: space-between;
}

.about-bio {
    position: relative;
    padding-left: var(--spacing-lg);
    padding-top: var(--spacing-xs);
}

/* 装饰性左边框 - 渐变效果 */
.about-bio::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(
        to bottom,
        var(--color-accent-gold) 0%,
        rgba(201, 169, 97, 0.6) 50%,
        transparent 100%
    );
    border-radius: var(--radius-sm);
}


.about-bio p {
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
    font-family: var(--font-sans);
    font-weight: 400;
    position: relative;
    padding-left: var(--spacing-xs);
}

.about-bio p:first-child {
    color: var(--color-text-primary);
    font-size: 1.05rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    padding-left: 0;
}

.about-bio p:first-child::before {
    content: '“';
    position: absolute;
    left: -0.8rem;
    top: -0.2rem;
    font-size: 1.5rem;
    color: var(--color-accent-gold);
    opacity: 0.3;
    font-family: var(--font-serif);
    line-height: 1;
}

.about-bio p:last-child {
    margin-bottom: 0;
}

/* 联系信息区域 - 简洁优雅设计 */
.about-contact {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    padding-top: var(--spacing-md);
    border-top: var(--border-thin);
    position: relative;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    border: var(--border-thin);
    border-radius: var(--radius-sm);
    font-weight: 400;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
    font-size: 0.85rem;
    letter-spacing: 0.02em;
    font-family: var(--font-sans);
    background: var(--color-bg-elevated);
    white-space: nowrap;
    position: relative;
}

.contact-link::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, rgba(201, 169, 97, 0.05), transparent);
    opacity: 0;
    transition: opacity var(--transition-fast);
    pointer-events: none;
}

.contact-link:hover {
    color: var(--color-accent-gold);
    border-color: rgba(201, 169, 97, 0.4);
    background: var(--color-bg-elevated);
}

.contact-link:hover::before {
    opacity: 1;
}

.contact-icon {
    width: 12px;
    height: 12px;
    flex-shrink: 0;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.contact-link:hover .contact-icon {
    opacity: 1;
}

/* 响应式 */
@media (max-width: 768px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        padding: var(--spacing-sm) var(--spacing-md) 0;
    }

    .about-portrait {
        gap: var(--spacing-sm);
    }

    .portrait-frame {
        aspect-ratio: 16 / 9;
    }

    .about-text {
        gap: var(--spacing-sm);
    }

    .about-bio p {
        font-size: 0.9rem;
        line-height: 1.7;
    }

    .about-bio p:first-child {
        font-size: 1rem;
    }
}