/* ========== About Page – 天眼查风格 ========== */

.about-page { max-width: var(--page-max-width); margin: 0 auto; padding: 0 20px 40px; }

.about-hero { text-align: center; padding: 24px 0 16px; }
.about-hero h1 { font-size: 22px; font-weight: 700; margin: 0 0 6px; color: #333; }
.about-hero-desc { font-size: 14px; color: #666; max-width: 460px; margin: 0 auto; }

.about-tabs { display: flex; gap: 0; border-bottom: 1px solid #e8e8e8; margin-bottom: 16px; }
.about-tab { padding: 10px 16px; font-size: 14px; color: #666; text-decoration: none; border-bottom: 2px solid transparent; }
.about-tab:hover { color: var(--color-primary); }
.about-tab.active { color: var(--color-primary); border-bottom-color: var(--color-primary); font-weight: 600; }

.about-section { margin-bottom: 24px; }
.section-title { font-size: 16px; font-weight: 600; margin: 0 0 12px; color: #333; }

.about-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 0; }
.about-col { background: #fff; border: 1px solid #e8e8e8; padding: 18px; }
.about-col:first-child { border-right: none; }
.about-col h2 { font-size: 15px; font-weight: 600; margin: 0 0 10px; color: #333; }
.about-col ul { list-style: none; padding: 0; margin: 0; }
.about-col li { position: relative; padding: 3px 0 3px 12px; font-size: 13px; color: #666; line-height: 1.7; }
.about-col li::before { content: ""; position: absolute; left: 0; top: 10px; width: 4px; height: 4px; background: var(--color-primary); border-radius: 50%; }

.faq-list { display: flex; flex-direction: column; gap: 0; }
.faq-item { background: #fff; border: 1px solid #e8e8e8; border-top: none; padding: 14px 16px; }
.faq-item:first-child { border-top: 1px solid #e8e8e8; }
.faq-q { font-size: 14px; font-weight: 600; color: #333; margin: 0 0 4px; }
.faq-a { font-size: 13px; color: #666; line-height: 1.7; margin: 0; }

.guide-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; }
.guide-step { background: #fff; border: 1px solid #e8e8e8; padding: 18px; margin-right: -1px; }
.guide-step:last-child { margin-right: 0; }
.step-number { width: 28px; height: 28px; background: var(--color-primary); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; margin-bottom: 10px; }
.guide-step h3 { font-size: 14px; font-weight: 600; margin: 0 0 4px; color: #333; }
.guide-step p { font-size: 13px; color: #666; line-height: 1.6; margin: 0; }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0; }
.contact-col { background: #fff; border: 1px solid #e8e8e8; padding: 18px; }
.contact-col:first-child { border-right: none; }
.contact-col h3 { font-size: 14px; font-weight: 600; margin: 0 0 10px; color: #333; padding-bottom: 8px; border-bottom: 1px solid #f0f0f0; }
.contact-info { margin: 0; }
.contact-info dt { font-size: 12px; color: #999; margin-bottom: 2px; }
.contact-info dd { font-size: 14px; color: #333; margin: 0 0 10px; }
.contact-info dd:last-child { margin-bottom: 0; }

@media (max-width: 768px) {
    .about-hero h1 { font-size: 18px; }
    .about-hero-desc { font-size: 13px; }
    .about-columns, .guide-steps, .contact-grid { grid-template-columns: 1fr; }
    .about-col:first-child, .contact-col:first-child { border-right: 1px solid #e8e8e8; border-bottom: none; }
    .about-col, .guide-step, .contact-col { padding: 14px; }
    .guide-step { margin-right: 0; margin-bottom: -1px; }
    .about-tabs { overflow-x: auto; }
    .about-tab { padding: 8px 12px; font-size: 13px; }
    .faq-item { padding: 12px; }
}

@media (max-width: 480px) {
    .about-hero { padding: 16px 0 12px; }
    .section-title { font-size: 15px; }
}