/* ========== 全局变量与基础样式 ========== */
:root {
    --primary: #FF6A00;
    --primary-dark: #E05A00;
    --primary-light: #FFF3E8;
    --primary-gradient: linear-gradient(135deg, #FF6A00 0%, #e33b38 100%);
    --dark: #1A1A2E;
    --text: #1D1D1F;
    --text-secondary: #6B7280;
    --text-light: #9CA3AF;
    --bg: #FFFFFF;
    --bg-light: #F8F9FA;
    --bg-section: #F5F6F7;
    --border: #E5E7EB;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
    --shadow: 0 4px 16px rgba(0,0,0,0.06), 0 2px 8px rgba(0,0,0,0.04);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.08), 0 4px 16px rgba(0,0,0,0.04);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.12), 0 8px 24px rgba(0,0,0,0.06);
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width: 1200px;
    --nav-height: 72px;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ========== 导航栏 ========== */
.nav {
    position: sticky; top: 0; z-index: 1000;
    background: rgba(255,255,255,0.92); backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid transparent;
    transition: all var(--transition); height: var(--nav-height); display: flex; align-items: center;
}
.nav.scrolled { border-bottom-color: var(--border); box-shadow: var(--shadow-sm); background: rgba(255,255,255,0.97); }
.nav-inner {
    width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 32px;
    display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; flex-shrink: 0; }
.nav-logo-icon {
    width: 40px; height: 40px; border-radius: 10px; background: var(--primary-gradient);
    display: flex; align-items: center; justify-content: center; color: #fff;
    font-weight: 700; font-size: 18px; letter-spacing: -1px;
    box-shadow: 0 2px 8px rgba(255,106,0,0.3);
}
.nav-logo-text { font-size: 15px; font-weight: 600; color: var(--dark); line-height: 1.2; letter-spacing: -0.02em; }
.nav-logo-text span { display: block; font-size: 11px; font-weight: 400; color: var(--text-secondary); }
.nav-links { display: flex; align-items: center; gap: 6px; list-style: none; }
.nav-links a {
    text-decoration: none; color: var(--text-secondary); font-size: 16px; font-weight: 500;
    padding: 8px 16px; border-radius: 20px; transition: all var(--transition); white-space: nowrap;
}
.nav-links a:hover, .nav-links a.active { color: var(--primary); background: var(--primary-light); }
.nav-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.nav-phone { display: flex; align-items: center; gap: 6px; color: var(--text); font-size: 16px; font-weight: 500; text-decoration: none; white-space: nowrap; transition: color var(--transition); }
.nav-phone:hover { color: var(--primary); }
.nav-phone-icon { width: 32px; height: 32px; border-radius: 50%; background: var(--bg-light); display: flex; align-items: center; justify-content: center; font-size: 14px; flex-shrink: 0; }
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 11px 24px; border-radius: 24px; font-size: 14px; font-weight: 600;
    text-decoration: none; cursor: pointer; border: none; transition: all var(--transition);
    white-space: nowrap; font-family: inherit;
}
.btn-primary {
    background: var(--primary-gradient); color: #fff;
    box-shadow: 0 4px 14px rgba(255,106,0,0.35);
}
.btn-primary:hover {
    background: linear-gradient(135deg, #E05A00 0%, #FF7A2E 100%);
    box-shadow: 0 6px 20px rgba(255,106,0,0.45); transform: translateY(-1px);
}
.btn-outline { background: #fff; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary-light); transform: translateY(-1px); }
.btn-lg { padding: 14px 32px; font-size: 16px; border-radius: 28px; }
.btn-xl { padding: 16px 40px; font-size: 17px; border-radius: 30px; letter-spacing: -0.02em; }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; z-index: 1001; background: none; border: none; width: 40px; height: 32px; justify-content: center; align-items: center; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--dark); border-radius: 2px; transition: all var(--transition); transform-origin: center; }
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ========== 页面头部(通用) ========== */
.page-hero {
    background: linear-gradient(135deg, #F8FAFC 0%, #FFF3E8 100%);
    padding: 60px 32px 48px; text-align: center;
}
.page-hero-inner { max-width: 800px; margin: 0 auto; }
.page-hero h1 {
    font-size: clamp(32px, 4.5vw, 48px); font-weight: 800; color: var(--dark);
    letter-spacing: -0.03em; margin-bottom: 16px;
}
.page-hero p { font-size: 16px; color: var(--text-secondary); line-height: 1.7; }

/* ========== 通用区块 ========== */
.section { padding: 80px 32px; }
.section-inner { max-width: var(--max-width); margin: 0 auto; }
.section-header { text-align: center; margin-bottom: 56px; }
.section-label {
    display: inline-block; font-size: 13px; font-weight: 600; color: var(--primary);
    text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 12px;
    background: var(--primary-light); padding: 6px 16px; border-radius: 20px;
}
.section-title {
    font-size: clamp(28px, 3.8vw, 40px); font-weight: 700; color: var(--dark);
    letter-spacing: -0.03em; margin-bottom: 14px; line-height: 1.25;
}
.section-desc { font-size: 16px; color: var(--text-secondary); max-width: 600px; margin: 0 auto; line-height: 1.7; }

/* ========== 卡片通用 ========== */
.card {
    background: #fff; border-radius: var(--radius-lg); padding: 36px 28px;
    border: 1px solid var(--border); transition: all var(--transition);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }

/* ========== 产品优势详情(用于features) ========== */
.feature-detail-list { display: flex; flex-direction: column; gap: 40px; }
.feature-detail-item {
    display: flex; gap: 40px; align-items: flex-start;
    background: #fff; border-radius: var(--radius-lg); padding: 40px;
    border: 1px solid var(--border); transition: all var(--transition);
}
.feature-detail-item:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); border-color: transparent; }
.feature-detail-icon {
    width: 80px; height: 80px; border-radius: 20px;
    display: flex; align-items: center; justify-content: center;
    font-size: 36px; flex-shrink: 0;
    background: var(--primary-light); color: var(--primary);
}
.feature-detail-content { flex: 1; }
.feature-detail-content h3 { font-size: 24px; font-weight: 700; color: var(--dark); margin-bottom: 12px; letter-spacing: -0.02em; }
.feature-detail-content p { font-size: 16px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 15px; }
.feature-detail-content ul { list-style: none; margin-bottom: 20px; }
.feature-detail-content ul li { padding: 6px 0; font-size: 15px; color: var(--text-secondary); display: flex; align-items: flex-start; gap: 8px; }
.feature-detail-content ul li::before { content: "✓"; color: #10B981; font-weight: 700; flex-shrink: 0; margin-top: 2px; }

/* ========== 版本卡片(用于pricing) ========== */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; max-width: 1100px; margin: 0 auto; }
.pricing-card {
    background: #fff; border-radius: var(--radius-lg); padding: 36px 28px;
    border: 2px solid var(--border); transition: all var(--transition); text-align: center;
    position: relative; display: flex; flex-direction: column;
}
.pricing-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.pricing-card.featured { border-color: var(--primary); box-shadow: var(--shadow-lg); transform: scale(1.04); z-index: 2; }
.pricing-card.featured:hover { transform: scale(1.04) translateY(-4px); }
.pricing-badge {
    position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
    background: var(--primary-gradient); color: #fff; padding: 6px 18px; border-radius: 20px;
    font-size: 12px; font-weight: 700; letter-spacing: 0.04em; white-space: nowrap;
    box-shadow: 0 4px 12px rgba(255,106,0,0.3);
}
.pricing-card h3 { font-size: 24px; font-weight: 700; color: var(--dark); margin-bottom: 4px; }
.pricing-subtitle { font-size: 14px; color: var(--text-secondary); margin-bottom: 16px; height: 40px; }
.price-tag { font-size: 32px; font-weight: 800; color: var(--primary); margin: 12px 0 20px; letter-spacing: -0.03em; }
.price-tag small { font-size: 14px; font-weight: 500; color: var(--text-secondary); }
.price-tag .original { text-decoration: line-through; color: var(--text-light); font-size: 18px; margin-right: 8px; font-weight: 500; }
.pricing-features { list-style: none; text-align: left; margin: 20px 0 28px; flex: 1; }
.pricing-features li { padding: 8px 0; font-size: 14px; color: var(--text-secondary); display: flex; align-items: baseline; gap: 8px; border-bottom: 1px solid #F5F5F5; }
.pricing-features li:last-child { border-bottom: none; }
.pricing-check { color: #10B981; font-weight: 700; flex-shrink: 0; font-size: 14px; }
.pricing-card .btn-container { margin-top: auto; }
.pricing-card .btn { width: 100%; justify-content: center; }

/* ========== 代理优势/承诺卡片 ========== */
.advantages-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.advantage-card {
    background: #fff; border-radius: var(--radius-lg); padding: 32px 24px;
    text-align: center; border: 1px solid var(--border); transition: all var(--transition);
}
.advantage-card:hover { box-shadow: var(--shadow); border-color: transparent; transform: translateY(-3px); }
.advantage-number { font-size: 40px; font-weight: 800; color: var(--primary); letter-spacing: -0.04em; opacity: 0.15; line-height: 1; margin-bottom: -20px; }
.advantage-card h4 { font-size: 16px; font-weight: 700; color: var(--dark); margin: 12px 0 8px; letter-spacing: -0.02em; }
.advantage-card p { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }

/* ========== 数据条 ========== */
.stats-bar {
    background: var(--dark); border-radius: var(--radius-xl); padding: 44px 40px;
    display: flex; justify-content: space-around; align-items: center; flex-wrap: wrap;
    gap: 24px; margin-top: 24px;
}
.stat-item { text-align: center; color: #fff; }
.stat-number { font-size: clamp(32px, 4vw, 48px); font-weight: 800; letter-spacing: -0.03em; line-height: 1; margin-bottom: 6px; }
.stat-number .plus { color: var(--primary); }
.stat-label { font-size: 14px; color: rgba(255,255,255,0.65); letter-spacing: 0.02em; }

/* ========== CTA区块 ========== */
.cta-section {
    background: linear-gradient(180deg, #FFF 0%, #FFF8F4 100%);
    text-align: center; padding: 80px 32px;
}
.cta-inner { max-width: 650px; margin: 0 auto; }
.cta-inner h2 { font-size: 32px; font-weight: 700; margin-bottom: 16px; color: var(--dark); }
.cta-inner p { font-size: 16px; color: var(--text-secondary); margin-bottom: 32px; line-height: 1.7; }

/* ========== 联系页面 ========== */
.contact-layout { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; align-items: start; }
.contact-info h2 { font-size: 28px; font-weight: 700; margin-bottom: 16px; color: var(--dark); }
.contact-info p { font-size: 16px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 28px; }
.info-item { display: flex; gap: 16px; align-items: flex-start; padding: 16px 0; border-bottom: 1px solid var(--border); }
.info-item .icon { font-size: 24px; width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; background: var(--primary-light); border-radius: 12px; flex-shrink: 0; }
.info-item .content h4 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.info-item .content span, .info-item .content a { font-size: 15px; color: var(--text-secondary); text-decoration: none; display: block; }
.info-item .content a:hover { color: var(--primary); }
.contact-form-wrapper { background: #fff; border-radius: var(--radius-lg); padding: 36px 32px; border: 1px solid var(--border); box-shadow: var(--shadow); }
.contact-form-wrapper h3 { font-size: 22px; font-weight: 700; margin-bottom: 8px; text-align: center; }
.contact-form-wrapper .form-subtitle { text-align: center; font-size: 14px; color: var(--text-secondary); margin-bottom: 28px; }

/* ========== 表单通用 ========== */
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 12px 16px; font-size: 15px;
    border: 1.5px solid var(--border); border-radius: var(--radius);
    background: #FAFBFC; transition: all var(--transition); font-family: inherit;
    color: var(--text); outline: none;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    border-color: var(--primary); box-shadow: 0 0 0 3px rgba(255,106,0,0.1); background: #fff;
}
.form-group textarea { resize: vertical; min-height: 80px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-submit-btn { width: 100%; padding: 14px; font-size: 16px; margin-top: 8px; border-radius: 28px; }
.form-note { text-align: center; font-size: 12px; color: var(--text-light); margin-top: 14px; }
.form-success-msg { display: none; text-align: center; padding: 40px 20px; }
.form-success-msg h3 { font-size: 22px; color: #10B981; margin-bottom: 10px; }
.form-success-msg p { color: var(--text-secondary); font-size: 15px; margin-bottom: 20px; }

/* ========== 开通页面版本选择器 ========== */
.version-selector { display: flex; flex-direction: column; gap: 16px; }
.version-card {
    background: #fff; border-radius: var(--radius-lg); padding: 24px 20px;
    border: 2px solid var(--border); cursor: pointer; transition: all var(--transition);
    position: relative;
}
.version-card:hover { border-color: #FFB380; }
.version-card.selected { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(255,106,0,0.1); background: #FFFAF5; }
.version-card.selected::after {
    content: '✓'; position: absolute; top: 16px; right: 20px;
    width: 28px; height: 28px; border-radius: 50%; background: var(--primary);
    color: #fff; display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 14px;
}
.version-card h3 { font-size: 18px; font-weight: 700; color: var(--dark); margin-bottom: 4px; }
.version-card .price { font-size: 20px; font-weight: 800; color: var(--primary); margin-bottom: 6px; }
.version-card .price small { font-size: 13px; font-weight: 500; color: var(--text-secondary); }
.version-card .desc { font-size: 13px; color: var(--text-secondary); line-height: 1.5; }
.version-card .tag { display: inline-block; font-size: 11px; font-weight: 600; padding: 3px 10px; border-radius: 12px; margin-top: 8px; }
.tag-ai { background: #F3E8FF; color: #7C3AED; }
.tag-local { background: #E6F7FF; color: #0369A1; }
.tag-standard { background: #F0FDF4; color: #15803D; }

/* ========== 页脚 ========== */
.footer {
    background: #1A1A2E; color: rgba(255,255,255,0.7); padding: 48px 32px 32px;
}
.footer-inner {
    max-width: var(--max-width); margin: 0 auto;
    display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px;
}
.footer h4 { color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 16px; letter-spacing: -0.01em; }
.footer p, .footer li { font-size: 13px; line-height: 2; }
.footer ul { list-style: none; }
.footer a { color: rgba(255,255,255,0.6); text-decoration: none; transition: color var(--transition); }
.footer a:hover { color: var(--primary); }
.footer-bottom {
    max-width: var(--max-width); margin: 32px auto 0; padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.1); text-align: center;
    font-size: 12px; color: rgba(255,255,255,0.4);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .pricing-grid { grid-template-columns: 1fr; max-width: 450px; }
    .pricing-card.featured { transform: scale(1); }
    .pricing-card.featured:hover { transform: translateY(-4px); }
    .advantages-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: repeat(2, 1fr); gap: 32px; }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .nav-links { display: none; position: fixed; top: var(--nav-height); left: 0; right: 0; background: #fff; flex-direction: column; padding: 20px 32px; gap: 4px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-lg); z-index: 999; }
    .nav-links.active { display: flex; }
    .nav-links a { padding: 12px 16px; font-size: 15px; width: 100%; border-radius: 8px; }
    .nav-phone span { display: none; }
    .hamburger { display: flex; }
    .hero, .page-hero { padding: 40px 20px 60px; }
    .section { padding: 56px 20px; }
    .features-grid { grid-template-columns: 1fr; }
    .advantages-grid { grid-template-columns: 1fr 1fr; }
    .stats-bar { padding: 28px 20px; gap: 20px; border-radius: var(--radius-lg); }
    .footer-inner { grid-template-columns: 1fr; gap: 28px; }
    .contact-layout { grid-template-columns: 1fr; gap: 32px; }
    .form-row { grid-template-columns: 1fr; }
    .version-selector { flex-direction: column; }
    .scene-showcase { grid-template-columns: 1fr; gap: 32px; }
    .feature-detail-item { flex-direction: column; gap: 20px; text-align: center; align-items: center; }
    .feature-detail-content ul li { justify-content: center; }
    .form-layout { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 480px) {
    .advantages-grid { grid-template-columns: 1fr; }
    .hero-buttons, .page-hero-buttons { flex-direction: column; align-items: center; }
    .btn-xl { width: 100%; justify-content: center; }
    .nav-inner { padding: 0 16px; }
    .hero, .page-hero { padding: 32px 16px 48px; }
    .section { padding: 40px 16px; }
    .cta-section { padding: 48px 20px; }
}

/* ========== 帮助中心专用样式 ========== */
.help-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 40px;
    align-items: start;
}
.help-sidebar {
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    padding: 24px;
    position: sticky;
    top: calc(var(--nav-height) + 32px);
}
.help-sidebar h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--dark);
}
.help-sidebar ul {
    list-style: none;
}
.help-sidebar li {
    margin-bottom: 4px;
}
.help-sidebar a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition);
    font-weight: 500;
}
.help-sidebar a:hover,
.help-sidebar a.active {
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 600;
}
.help-sidebar .count {
    font-size: 12px;
    background: var(--bg-light);
    padding: 2px 8px;
    border-radius: 10px;
    color: var(--text-light);
}
.help-sidebar a.active .count {
    background: var(--primary);
    color: #fff;
}
.help-main {
    min-width: 0;
}
.help-category-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border);
}
.question-list {
    list-style: none;
}
.question-list li {
    border-bottom: 1px solid #f0f0f0;
}
.question-list a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
    text-decoration: none;
    color: var(--text);
    font-size: 15px;
    font-weight: 500;
    transition: color var(--transition);
}
.question-list a:hover {
    color: var(--primary);
}
.question-list a .arrow-right {
    color: var(--text-light);
    font-size: 12px;
}

/* 面包屑 */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 24px;
}
.breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
}
.breadcrumb a:hover {
    color: var(--primary);
}
.breadcrumb .sep {
    color: var(--border);
}

/* 文章详情 */
.article-layout {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 40px;
    align-items: start;
}
.article-body h2 {
    font-size: 22px;
    margin-top: 32px;
    margin-bottom: 12px;
    color: var(--dark);
}
.article-body h3 {
    font-size: 18px;
    margin-top: 24px;
    margin-bottom: 8px;
    color: var(--dark);
}
.article-body p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}
.article-body ul,
.article-body ol {
    margin-left: 20px;
    margin-bottom: 16px;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.8;
}
.article-body img {
    max-width: 100%;
    border-radius: var(--radius);
    margin: 16px 0;
}
.article-sidebar-card {
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    padding: 24px;
    margin-bottom: 20px;
}
.article-sidebar-card h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}
.article-sidebar-card ul {
    list-style: none;
}
.article-sidebar-card ul li {
    margin-bottom: 8px;
}
.article-sidebar-card ul li a {
    font-size: 14px;
    color: var(--text-secondary);
    text-decoration: none;
}
.article-sidebar-card ul li a:hover {
    color: var(--primary);
}
.article-feedback {
    background: var(--bg-light);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    margin-top: 32px;
}
.article-feedback p {
    font-size: 14px;
    margin-bottom: 12px;
    color: var(--text-secondary);
}
.article-feedback .btn-group {
    display: flex;
    gap: 12px;
    justify-content: center;
}

@media (max-width: 768px) {
    .help-layout {
        grid-template-columns: 1fr;
    }
    .help-sidebar {
        position: static;
        margin-bottom: 24px;
    }
    .article-layout {
        grid-template-columns: 1fr;
    }
}