/* 关于我们页面样式 */
.page-banner.about-banner { background: linear-gradient(135deg, var(--secondary-dark), var(--secondary)); padding: 48px 0; position: relative; overflow: hidden; }
.page-banner.about-banner::before { content: ''; position: absolute; inset: 0; background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E"); }
.banner-content { position: relative; }
.banner-content h1 { font-size: 2.2rem; font-weight: 800; color: white; margin-bottom: 8px; }
.banner-content p { color: rgba(255,255,255,0.7); margin-bottom: 16px; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: rgba(255,255,255,0.55); }
.breadcrumb a { color: rgba(255,255,255,0.55); }
.breadcrumb a:hover { color: white; }
.breadcrumb i { font-size: 0.65rem; }

/* 公司简介 */
.company-intro { padding: 48px 0; background: white; }
.intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: flex-start; }
    .intro-text .section-tag { display: inline-block; margin-bottom: 10px; }
    #aboutIntroTitle { font-size: 1.6rem; font-weight: 800; color: var(--text-dark); margin-bottom: 24px; line-height: 1.25; text-align: center; }
    #aboutIntroBody { font-size: 0.92rem; color: var(--text-body); line-height: 1.8; margin-bottom: 24px; }
        #aboutIntroBody p { text-indent: 2em; margin-bottom: 12px; }
    .intro-text h2 { font-size: 2rem; font-weight: 800; color: var(--text-dark); margin-bottom: 14px; line-height: 1.3; }
.intro-text p { font-size: 0.92rem; color: var(--text-body); line-height: 1.8; margin-bottom: 12px; text-indent: 2em; }
.intro-stats { display: flex; gap: 24px; margin-top: 24px; flex-wrap: wrap; }
.i-stat { text-align: center; }
.i-stat strong { display: block; font-size: 1.8rem; font-weight: 800; color: var(--primary); line-height: 1; margin-bottom: 4px; }
.i-stat strong sup { font-size: 1rem; }
.i-stat span { font-size: 0.8rem; color: var(--text-light); }

.about-features { margin-bottom: 40px; }

.visual-grid { display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 200px 200px auto; gap: 12px; border-radius: var(--radius-md); overflow: hidden; }
    .visual-item { border-radius: var(--radius-sm); overflow: hidden; }
.v1 { grid-row: 1 / 3; }
    .v4 { grid-column: 1 / 3; grid-row: 3; aspect-ratio: 16 / 9; }
    .visual-placeholder { width: 100%; height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; background: linear-gradient(135deg, #1a3a6e, #0d2048); color: rgba(255,255,255,0.6); font-size: 0.85rem; font-weight: 500; }
    .visual-placeholder.blue { background: linear-gradient(135deg, #0d2b4a, #1565c0); }
.visual-placeholder.red { background: linear-gradient(135deg, var(--primary-dark), var(--primary)); }
.visual-placeholder.green { background: linear-gradient(135deg, #0d3b2e, #1b5e20); }
.visual-placeholder i { font-size: 2.5rem; opacity: 0.4; }
.visual-item img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* 发展历程 */
.timeline-section { padding: 48px 0; background: var(--bg-light); }
.timeline { position: relative; max-width: 800px; margin: 0 auto; padding: 12px 0; }
.timeline::before { content: ''; position: absolute; left: 50%; top: 0; bottom: 0; width: 2px; background: linear-gradient(to bottom, var(--primary), var(--secondary)); transform: translateX(-50%); }
.timeline-item { display: flex; justify-content: flex-end; width: 50%; padding-right: 48px; margin-bottom: 28px; }
.timeline-item.right { justify-content: flex-start; padding-right: 0; padding-left: 48px; align-self: flex-end; margin-left: 50%; }
.timeline-content { background: white; border-radius: var(--radius-md); padding: 18px; box-shadow: var(--shadow-sm); border: 1px solid var(--border); max-width: 320px; position: relative; transition: var(--transition); }
.timeline-content:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.timeline-item .timeline-content::after { content: ''; position: absolute; top: 24px; width: 12px; height: 12px; background: var(--primary); border-radius: 50%; border: 3px solid white; box-shadow: 0 0 0 2px var(--primary); }
.timeline-item:not(.right) .timeline-content::after { right: -54px; }
.timeline-item.right .timeline-content::after { left: -54px; }
.timeline-year { font-size: 0.78rem; font-weight: 700; color: var(--primary); background: rgba(var(--primary-rgb),0.1); padding: 3px 10px; border-radius: 12px; display: inline-block; margin-bottom: 8px; }
.timeline-content h3 { font-size: 0.95rem; font-weight: 700; color: var(--text-dark); margin-bottom: 8px; }
.timeline-content p { font-size: 0.84rem; color: var(--text-light); line-height: 1.6; }

/* 工厂数据 */
.factory-section { padding: 48px 0; background: linear-gradient(135deg, var(--secondary-dark), var(--secondary)); }
.factory-section .section-header h2 { color: white; }
.factory-section .section-header p { color: rgba(255,255,255,0.65); }
.factory-section .section-tag { background: rgba(255,255,255,0.15); color: rgba(255,255,255,0.9); }
.factory-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.factory-stat { text-align: center; padding: 22px 16px; background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius-md); transition: var(--transition); }
.factory-stat:hover { background: rgba(255,255,255,0.12); transform: translateY(-4px); }
.f-icon { font-size: 1.6rem; color: var(--accent); margin-bottom: 14px; }
.f-number { font-size: 1.6rem; font-weight: 800; color: white; line-height: 1; margin-bottom: 6px; }
.f-number span { font-size: 0.9rem; }
.f-label { font-size: 0.78rem; color: rgba(255,255,255,0.6); }

@media (max-width: 1100px) {
    .intro-grid { grid-template-columns: 1fr; }
    .visual-grid { display: none; }
    .factory-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 640px) {
    .timeline::before { left: 20px; }
    .timeline-item { width: 100%; padding-right: 0; padding-left: 52px; justify-content: flex-start; }
    .timeline-item.right { margin-left: 0; padding-left: 52px; }
    .timeline-item .timeline-content::after { left: -37px !important; right: auto !important; }
    .factory-grid { grid-template-columns: repeat(2, 1fr); }
    .company-intro { padding: 24px 0 4px; }
    .intro-grid { gap: 24px; }
    #aboutIntroTitle { margin-bottom: 12px; }
    #aboutIntroBody { margin-bottom: 12px; }
    .about-features { margin-bottom: 0; }
    .faq-section { padding: 8px 0 4px; }
    .faq-section .section-header { margin-bottom: 12px; }
    .faq-section .section-header h2 { margin-bottom: 2px; }
    .faq-section .section-header p { margin-bottom: 0; }
    .faq-grid { gap: 12px; }
    .timeline-section { padding: 12px 0 4px; }
    .timeline-item { margin-bottom: 16px; }
    .timeline-section .section-header,
    .factory-section .section-header { margin-bottom: 12px; }
}

/* ── FAQ Section ── */
.faq-section { padding: 40px 0 16px; }
.faq-grid {
    max-width: 900px; margin: 0 auto; display: grid;
    grid-template-columns: repeat(2, 1fr); gap: 16px;
}
@media(max-width:760px) { .faq-grid { grid-template-columns: 1fr; } }
.faq-card {
    background: #fff; border: 1px solid var(--border); border-radius: 12px;
    padding: 16px 18px; box-shadow: 0 2px 8px rgba(0,0,0,.05);
}
.faq-q {
    font-size: .95rem; font-weight: 700; color: var(--primary);
    margin-bottom: 8px; line-height: 1.5;
}
.faq-q strong { font-weight: 700; }
.faq-a {
    font-size: .875rem; font-weight: 400; color: var(--text-body);
    line-height: 1.7;
}

/* ── Factory Tour ── */
.factory-tour-section { padding: 48px 0; background: var(--bg-gray); }
.factory-tabs {
    display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; margin-bottom: 28px;
}
.factory-tab {
    padding: 10px 22px; border-radius: 22px; border: 1px solid var(--border);
    background: #fff; font-size: .85rem; cursor: pointer; color: var(--text-body);
    font-family: inherit; transition: all .2s;
}
.factory-tab.active, .factory-tab:hover { background: var(--secondary); color: #fff; border-color: var(--secondary); }
.factory-tab-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 16px; max-width: 1000px; margin: 0 auto;
}
.factory-tab-cell {
    position: relative; border-radius: 12px; overflow: hidden; aspect-ratio: 16 / 9;
    background: var(--bg-light); border: 1px solid var(--border);
}
.factory-tab-cell img { width: 100%; height: 100%; object-fit: cover; display: block; }
.factory-tab-placeholder {
    position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
    color: var(--text-muted); font-size: 1.6rem;
}
@media (max-width: 640px) {
    .factory-tab-grid { grid-template-columns: 1fr; gap: 12px; }
    .factory-tab { font-size: .78rem; padding: 8px 16px; }
}