/* ============================ 关于我 ============================ */

.page-hero {
    padding: calc(var(--nav-h) + 80px) 0 60px;
    text-align: center;
}

.page-hero .eyebrow {
    text-align: center;
}

.page-hero h1 {
    font-size: clamp(2.4rem, 5vw, 3.6rem);
    margin-bottom: 16px;
}

.page-hero .lead {
    color: var(--text-dim);
    font-size: 1.1rem;
    max-width: 640px;
    margin: 0 auto;
}

/* ---------- 顶部信息卡 ---------- */
.about-intro {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 48px;
    align-items: center;
    margin-bottom: 80px;
}

.avatar-block {
    text-align: center;
}

.avatar {
    width: 220px;
    height: 220px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background:
        radial-gradient(circle at 30% 30%, rgba(255, 165, 102, 0.5), transparent 60%),
        linear-gradient(135deg, #ff6b35, #f7c948);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 5rem;
    font-weight: 700;
    color: #fff;
    box-shadow: 0 0 60px rgba(255, 107, 53, 0.4);
    position: relative;
}

.avatar::after {
    content: '';
    position: absolute;
    inset: -8px;
    border-radius: 50%;
    border: 1px solid var(--border-strong);
}

.avatar-name {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 600;
}

.avatar-role {
    color: var(--accent-2);
    font-size: 0.95rem;
    margin-top: 4px;
}

.about-text h2 {
    font-size: 1.5rem;
    margin-bottom: 16px;
}

.about-text p {
    color: var(--text-dim);
    margin-bottom: 14px;
    line-height: 1.8;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-top: 24px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    transition: border-color 0.25s ease;
}

.contact-item:hover {
    border-color: var(--accent);
}

.contact-item .ico {
    color: var(--accent);
    font-size: 1.1rem;
}

.contact-item .label {
    color: var(--text-mute);
    font-size: 0.78rem;
    display: block;
}

/* ---------- 技能 ---------- */
.skills-section h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 12px;
}

.skills-section .section-subtitle {
    text-align: center;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.skill-card {
    padding: 26px;
}

.skill-card h4 {
    font-size: 1.15rem;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.skill-card h4 .badge {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 4px;
    background: rgba(255, 107, 53, 0.12);
    color: var(--accent-2);
    font-weight: 400;
}

.skill-level {
    height: 6px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 4px;
    overflow: hidden;
    margin: 14px 0;
}

.skill-bar {
    height: 100%;
    background: var(--accent-grad);
    border-radius: 4px;
    width: 0;
    transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 0 10px rgba(255, 107, 53, 0.5);
}

.skill-card p {
    color: var(--text-dim);
    font-size: 0.9rem;
    line-height: 1.7;
}

/* ---------- 规范贡献 ---------- */
.process-note {
    margin-top: 60px;
    padding: 32px;
}

.process-note h3 {
    font-size: 1.3rem;
    margin-bottom: 14px;
}

.process-note p {
    color: var(--text-dim);
    line-height: 1.8;
}

.note-tags {
    margin-top: 16px;
}

/* ---------- 响应式 ---------- */
@media screen and (max-width: 860px) {
    .about-intro {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .avatar {
        width: 180px;
        height: 180px;
        font-size: 4rem;
    }

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

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