/* =============================================
   启航建站 - GEO官网样式表
   现代、专业、响应式
   ============================================= */

/* --- CSS Variables --- */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #7c3aed;
    --accent: #06b6d4;
    --text: #1e293b;
    --text-light: #64748b;
    --bg: #ffffff;
    --bg-light: #f8fafc;
    --bg-gray: #f1f5f9;
    --border: #e2e8f0;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --radius: 12px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.08);
    --max-width: 1200px;
}

/* --- Reset & Base --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--text);
    line-height: 1.7;
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--primary-dark); }

img { max-width: 100%; height: auto; }

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

h1, h2, h3, h4, h5, h6 { line-height: 1.4; color: var(--text); }

/* --- Buttons --- */
.btn { display: inline-block; padding: 12px 28px; border-radius: 8px; font-size: 15px; font-weight: 600; border: 2px solid transparent; cursor: pointer; text-align: center; transition: all 0.2s; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-outline { background: transparent; border-color: var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-lg { padding: 14px 36px; font-size: 16px; }
.btn-sm { padding: 6px 16px; font-size: 13px; }

/* --- Header --- */
.site-header { background: #fff; border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; box-shadow: var(--shadow); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; align-items: center; }
.logo-text { font-size: 22px; font-weight: 800; color: var(--primary); letter-spacing: -0.5px; }
.logo:hover .logo-text { color: var(--primary-dark); }

.main-nav ul { display: flex; list-style: none; gap: 4px; }
.main-nav a { display: block; padding: 8px 16px; font-size: 14px; font-weight: 500; color: var(--text-light); border-radius: 6px; }
.main-nav a:hover, .main-nav a.active { color: var(--primary); background: #eff6ff; }

.header-contact { display: flex; align-items: center; gap: 15px; }
.header-phone { font-size: 14px; color: var(--text-light); font-weight: 500; }

.mobile-menu-btn { display: none; background: none; border: none; font-size: 26px; cursor: pointer; padding: 5px; }

/* --- Hero Section --- */
.hero { background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #1e40af 100%); color: #fff; padding: 80px 0 60px; text-align: center; position: relative; overflow: hidden; }
.hero::after { content: ''; position: absolute; inset: 0; background: url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 5 L55 30 L30 55 L5 30Z' fill='none' stroke='rgba(255,255,255,0.05)' stroke-width='1'/%3E%3C/svg%3E"); opacity: 0.5; }
.hero-content { position: relative; z-index: 1; max-width: 800px; margin: 0 auto; }
.hero h1 { font-size: 42px; font-weight: 800; color: #fff; margin-bottom: 16px; line-height: 1.3; }
.hero h1 .highlight { display: block; font-size: 24px; font-weight: 500; color: #93c5fd; margin-top: 8px; }
.hero-subtitle { font-size: 17px; color: #cbd5e1; margin-bottom: 30px; line-height: 1.8; }
.hero-actions { display: flex; gap: 15px; justify-content: center; flex-wrap: wrap; margin-bottom: 40px; }
.hero-actions .btn-outline { border-color: rgba(255,255,255,0.5); color: #fff; }
.hero-actions .btn-outline:hover { background: rgba(255,255,255,0.1); border-color: #fff; }
.hero-stats { display: flex; justify-content: center; gap: 40px; flex-wrap: wrap; }
.stat-item { text-align: center; }
.stat-item strong { display: block; font-size: 32px; font-weight: 800; color: #fff; }
.stat-item span { font-size: 13px; color: #94a3b8; }

/* --- Section Common --- */
.home-section { padding: 70px 0; }
.bg-light { background: var(--bg-light); }
.section-header { text-align: center; margin-bottom: 45px; }
.section-header h2 { font-size: 28px; font-weight: 700; margin-bottom: 10px; }
.section-header p { font-size: 16px; color: var(--text-light); }
.section-header-h2 { font-size: 28px; font-weight: 700; text-align: center; margin-bottom: 30px; }
.section-footer { text-align: center; margin-top: 35px; }

/* --- Service Cards --- */
.service-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.service-card { background: #fff; border-radius: var(--radius); padding: 30px 24px; box-shadow: var(--shadow); transition: all 0.3s; border: 1px solid var(--border); }
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.service-card-link { display: block; color: inherit; }
.service-icon { font-size: 40px; display: block; margin-bottom: 16px; }
.service-card h3 { font-size: 18px; margin-bottom: 8px; }
.service-card p { font-size: 14px; color: var(--text-light); margin-bottom: 12px; }
.service-tag { font-size: 11px; background: #eff6ff; color: var(--primary); padding: 3px 10px; border-radius: 12px; }

/* --- Solution Cards --- */
.solution-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.solution-card { background: #fff; border-radius: var(--radius); padding: 30px 24px; box-shadow: var(--shadow); border: 1px solid var(--border); transition: all 0.3s; }
.solution-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.solution-card a { color: inherit; }
.solution-icon { font-size: 36px; display: block; margin-bottom: 12px; }
.solution-card h3 { font-size: 18px; margin-bottom: 8px; }
.solution-card p { font-size: 14px; color: var(--text-light); }

/* --- Case Cards --- */
.case-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.case-card { background: #fff; border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); border: 1px solid var(--border); transition: all 0.3s; }
.case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.case-card a { color: inherit; display: block; }
.case-card-tags { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.tag { display: inline-block; font-size: 12px; padding: 3px 10px; border-radius: 6px; font-weight: 500; }
.tag-industry { background: #f0fdf4; color: #166534; }
.tag-service { background: #eff6ff; color: #1e40af; }
.tag-keyword { background: var(--bg-gray); color: var(--text-light); }
.case-card h3 { font-size: 17px; margin-bottom: 8px; }
.case-client { font-size: 13px; color: var(--text-light); margin-bottom: 6px; }
.case-summary { font-size: 14px; color: var(--text-light); line-height: 1.6; }

/* --- Case Grid --- */
.case-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.case-grid-card { background: #fff; border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); border: 1px solid var(--border); transition: all 0.3s; }
.case-grid-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.case-grid-card a { color: inherit; display: block; }
.case-grid-header { display: flex; gap: 8px; margin-bottom: 12px; }
.case-grid-card h3 { font-size: 17px; margin-bottom: 6px; }
.case-client-name { font-size: 13px; color: var(--text-light); margin-bottom: 8px; }
.case-grid-summary { font-size: 14px; color: var(--text-light); }
.case-metrics-bar { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.metric-tag { font-size: 11px; background: #fffbeb; color: #92400e; padding: 3px 8px; border-radius: 4px; }

/* --- FAQ --- */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border: 1px solid var(--border); border-radius: 8px; margin-bottom: 12px; background: #fff; overflow: hidden; transition: all 0.2s; }
.faq-item:hover { border-color: var(--primary); }
.faq-item summary { padding: 16px 20px; font-weight: 600; font-size: 15px; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq-item summary::after { content: '+'; font-size: 20px; color: var(--primary); font-weight: 300; }
.faq-item[open] summary::after { content: '−'; }
.faq-item[open] { border-color: var(--primary); }
.faq-answer { padding: 0 20px 20px; font-size: 14px; color: var(--text-light); line-height: 1.8; }

/* --- Trust Grid --- */
.trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.trust-item { text-align: center; padding: 30px 20px; }
.trust-icon { font-size: 42px; display: block; margin-bottom: 14px; }
.trust-item h3 { font-size: 17px; margin-bottom: 8px; }
.trust-item p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

/* --- Breadcrumb --- */
.breadcrumb { background: var(--bg-light); border-bottom: 1px solid var(--border); padding: 12px 0; }
.breadcrumb .container { font-size: 13px; color: var(--text-light); }
.breadcrumb a { color: var(--text-light); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb span { margin: 0 8px; color: #ccc; }
.breadcrumb strong { color: var(--text); }

/* --- Page Header --- */
.page-header { background: linear-gradient(135deg, #0f172a 0%, #1e40af 100%); color: #fff; padding: 60px 0; text-align: center; }
.page-header h1 { font-size: 34px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.page-header p { font-size: 16px; color: #cbd5e1; max-width: 600px; margin: 0 auto; }
.service-page-icon, .solution-page-icon { font-size: 48px; display: block; margin-bottom: 16px; }

/* --- Page Content --- */
.page-content { padding: 50px 0; }
.content-block { margin-bottom: 40px; padding: 30px; }
.content-block.bg-light { background: var(--bg-light); border-radius: var(--radius); }
.content-block h2 { font-size: 24px; font-weight: 700; margin-bottom: 20px; padding-bottom: 12px; border-bottom: 2px solid var(--border); }
.content-block h3 { font-size: 18px; margin: 20px 0 10px; }

.features-content ul, .features-content ol { padding-left: 20px; }
.features-content li, .case-content li { margin-bottom: 8px; line-height: 1.8; }
.case-content ul, .case-content ol { padding-left: 20px; }
.case-content li { margin-bottom: 8px; }

.content-cta { text-align: center; padding: 50px 20px; background: linear-gradient(135deg, #eff6ff 0%, #f0f9ff 100%); border-radius: var(--radius); margin-top: 30px; }
.content-cta h2 { font-size: 24px; margin-bottom: 10px; border: none; padding: 0; }
.content-cta p { color: var(--text-light); margin-bottom: 20px; }

/* --- Service Detail Cards --- */
.detail-service-list { display: flex; flex-direction: column; gap: 24px; }
.service-detail-card { display: flex; gap: 24px; background: #fff; border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); border: 1px solid var(--border); }
.service-detail-icon { font-size: 48px; flex-shrink: 0; }
.service-detail-body { flex: 1; }
.service-detail-body h2 { font-size: 22px; margin-bottom: 6px; padding: 0; border: none; }
.service-detail-body h2 a { color: var(--text); }
.service-detail-body h2 a:hover { color: var(--primary); }
.service-detail-subtitle { font-size: 15px; color: var(--primary); margin-bottom: 12px; font-weight: 500; }
.service-detail-desc { font-size: 14px; color: var(--text-light); margin-bottom: 16px; }
.service-detail-desc p { margin-bottom: 8px; }

.service-process-block { margin-bottom: 40px; }
.service-process-block h2 { text-align: center; margin-bottom: 30px; font-size: 24px; }
.process-steps { display: flex; justify-content: space-between; gap: 15px; }
.process-step { text-align: center; flex: 1; padding: 20px; position: relative; }
.process-step::after { content: '→'; position: absolute; right: -10px; top: 30px; font-size: 24px; color: var(--border); }
.process-step:last-child::after { display: none; }
.step-number { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; background: var(--primary); color: #fff; border-radius: 50%; font-size: 18px; font-weight: 700; margin-bottom: 12px; }
.process-step h3 { font-size: 15px; margin-bottom: 6px; }
.process-step p { font-size: 13px; color: var(--text-light); }

/* Process Timeline */
.process-timeline { padding-left: 20px; }
.timeline-item { display: flex; gap: 16px; margin-bottom: 24px; padding-bottom: 20px; border-bottom: 1px solid var(--border); position: relative; }
.timeline-item:last-child { border-bottom: none; }
.timeline-number { display: flex; align-items: center; justify-content: center; width: 36px; height: 36px; min-width: 36px; background: var(--primary); color: #fff; border-radius: 50%; font-weight: 700; font-size: 15px; }
.timeline-content h3 { font-size: 17px; margin-bottom: 4px; }
.timeline-content p { font-size: 14px; color: var(--text-light); }
.timeline-time { font-size: 12px; color: var(--text-light); }

/* Pricing Table */
.pricing-table { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.pricing-card { background: #fff; border: 2px solid var(--border); border-radius: var(--radius); padding: 30px 24px; text-align: center; transition: all 0.3s; }
.pricing-card:hover { border-color: var(--primary); transform: translateY(-4px); }
.pricing-card h3 { font-size: 18px; margin-bottom: 16px; }
.pricing-price { font-size: 24px; font-weight: 800; color: var(--primary); margin-bottom: 16px; }
.pricing-card p { font-size: 14px; color: var(--text-light); }

.tech-stack-text { font-size: 15px; padding: 12px 20px; background: var(--bg-light); border-radius: 8px; }

/* --- Case Detail --- */
.case-detail-header { margin-bottom: 30px; }
.case-meta-tags { display: flex; gap: 8px; margin-bottom: 12px; }
.case-detail-header h1 { font-size: 30px; font-weight: 700; margin-bottom: 10px; }
.case-client-intro { font-size: 15px; color: var(--text-light); margin-bottom: 8px; }
.case-detail-summary { font-size: 16px; color: var(--text-light); }

.case-metrics { }
.metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.metric-card { text-align: center; padding: 20px; background: var(--bg-light); border-radius: 8px; }
.metric-card strong { display: block; font-size: 22px; color: var(--primary); margin-bottom: 4px; }
.metric-card span { font-size: 13px; color: var(--text-light); }

.testimonial-block blockquote { background: #fffbeb; border-left: 4px solid var(--warning); padding: 24px; border-radius: 0 8px 8px 0; font-style: italic; }
.testimonial-block blockquote p { font-size: 16px; line-height: 1.8; margin-bottom: 12px; }
.testimonial-block blockquote cite { font-size: 14px; color: var(--text-light); font-style: normal; }

/* --- Articles --- */
.category-nav { display: flex; gap: 8px; margin-bottom: 30px; flex-wrap: wrap; }
.category-nav a { padding: 8px 20px; border-radius: 20px; font-size: 14px; font-weight: 500; background: var(--bg-gray); color: var(--text-light); }
.category-nav a:hover, .category-nav a.active { background: var(--primary); color: #fff; }

.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.article-card { background: #fff; border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); border: 1px solid var(--border); transition: all 0.3s; }
.article-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.article-card a { color: inherit; display: block; }
.article-card-meta { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.article-date { font-size: 12px; color: var(--text-light); }
.article-card h3 { font-size: 16px; margin-bottom: 8px; line-height: 1.5; }
.article-summary { font-size: 13px; color: var(--text-light); line-height: 1.6; }
.article-card-footer { display: flex; justify-content: space-between; align-items: center; margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--border); }
.article-author { font-size: 12px; color: var(--text-light); }
.article-views { font-size: 12px; color: var(--text-light); }

/* Article Detail */
.article-detail { }
.article-header { margin-bottom: 30px; text-align: center; }
.article-header h1 { font-size: 28px; margin-bottom: 12px; }
.article-header-summary { font-size: 15px; color: var(--text-light); }
.article-meta { display: flex; justify-content: center; gap: 15px; margin-bottom: 16px; flex-wrap: wrap; }

.article-body { max-width: 780px; margin: 0 auto; font-size: 16px; line-height: 1.9; }
.article-body h2 { font-size: 22px; margin: 40px 0 16px; }
.article-body h3 { font-size: 18px; margin: 30px 0 12px; }
.article-body p { margin-bottom: 16px; }
.article-body ul, .article-body ol { padding-left: 24px; margin-bottom: 16px; }
.article-body li { margin-bottom: 8px; }
.article-body table { width: 100%; border-collapse: collapse; margin-bottom: 20px; }
.article-body table th, .article-body table td { padding: 12px 16px; border: 1px solid var(--border); text-align: left; font-size: 14px; }
.article-body table th { background: var(--bg-light); font-weight: 600; }
.article-body table tr:nth-child(even) td { background: var(--bg-light); }

.author-box { max-width: 780px; margin: 40px auto; padding: 24px; background: var(--bg-light); border-radius: var(--radius); }
.author-box h3 { font-size: 16px; margin-bottom: 12px; }
.author-info { display: flex; gap: 16px; align-items: center; }
.author-avatar { font-size: 40px; }
.author-title { display: block; font-size: 13px; color: var(--text-light); }
.author-info p { font-size: 13px; color: var(--text-light); margin-top: 4px; }

.article-tags { max-width: 780px; margin: 0 auto 40px; display: flex; gap: 8px; flex-wrap: wrap; }

/* --- Pagination --- */
.pagination { display: flex; justify-content: center; gap: 5px; margin-top: 30px; }
.pagination a, .pagination span { padding: 8px 16px; border-radius: 6px; font-size: 14px; border: 1px solid var(--border); color: var(--text); background: #fff; }
.pagination a:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
.page-info { display: flex; align-items: center; color: var(--text-light); }

/* --- Solution Detail --- */
.solution-list { display: flex; flex-direction: column; gap: 24px; }
.solution-detail-card { background: #fff; border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); border: 1px solid var(--border); transition: all 0.3s; display: flex; gap: 24px; }
.solution-detail-card:hover { box-shadow: var(--shadow-lg); }
.solution-detail-card a { color: inherit; display: flex; gap: 24px; }
.solution-detail-icon { font-size: 48px; flex-shrink: 0; }
.solution-detail-body { flex: 1; }
.solution-detail-body h2 { font-size: 20px; padding: 0; border: none; margin-bottom: 8px; }
.solution-detail-body p { font-size: 14px; color: var(--text-light); }
.solution-detail-body hr { margin: 16px 0; border: none; border-top: 1px solid var(--border); }
.solution-detail-body h3 { font-size: 16px; margin-bottom: 8px; }
.solution-detail-body ul { padding-left: 20px; margin-bottom: 16px; }
.solution-detail-body ul li { font-size: 13px; color: var(--text-light); margin-bottom: 4px; }

/* --- Contact --- */
.contact-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 30px; }
.contact-form { background: #fff; padding: 30px; border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--border); }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 500; font-size: 14px; color: var(--text); }
.required { color: var(--danger); }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 12px 16px; border: 2px solid var(--border); border-radius: 8px; font-size: 15px; font-family: inherit; transition: border-color 0.2s; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); }
.form-row { display: flex; gap: 15px; }
.form-row .form-group { flex: 1; }
.form-submit { text-align: center; margin-top: 10px; }
.form-hint { font-size: 12px; color: var(--text-light); margin-top: 10px; }

.contact-info-side { padding: 20px; }
.contact-info-side h3 { font-size: 18px; margin-bottom: 16px; }
.contact-info-side ul { list-style: none; margin-bottom: 30px; }
.contact-info-side ul li { padding: 8px 0; font-size: 14px; color: var(--text-light); border-bottom: 1px solid var(--border); }
.contact-faq-side h3 { margin-bottom: 12px; }
.contact-faq-side .faq-item { margin-bottom: 8px; }
.contact-faq-side .faq-item summary { font-size: 13px; padding: 10px 14px; }
.contact-faq-side .faq-answer { font-size: 12px; padding: 0 14px 12px; }

.contact-info-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.contact-info-grid div { padding: 12px 16px; background: var(--bg-light); border-radius: 8px; font-size: 14px; }
.contact-info-grid div strong { display: block; margin-bottom: 4px; }

.success-message { text-align: center; padding: 40px 20px; }
.success-message h3 { font-size: 22px; margin-bottom: 12px; }

/* --- CTA Section --- */
.cta-section { background: linear-gradient(135deg, #1e40af 0%, #7c3aed 100%); color: #fff; padding: 60px 0; text-align: center; }
.cta-section h2 { font-size: 28px; color: #fff; margin-bottom: 10px; }
.cta-section p { font-size: 16px; color: #cbd5e1; margin-bottom: 24px; }
.cta-buttons { display: flex; gap: 15px; justify-content: center; flex-wrap: wrap; }
.cta-buttons .btn-outline { border-color: rgba(255,255,255,0.5); color: #fff; }

/* --- Footer --- */
.site-footer { background: #0f172a; color: #cbd5e1; padding: 50px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 30px; margin-bottom: 30px; }
.footer-col h3, .footer-col h4 { font-size: 16px; color: #fff; margin-bottom: 16px; }
.footer-col p { font-size: 13px; line-height: 1.7; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { color: #94a3b8; font-size: 13px; }
.footer-col ul li a:hover { color: #fff; }
.footer-stats { display: flex; gap: 16px; margin-top: 16px; }
.footer-stats div { text-align: center; }
.footer-stats strong { display: block; font-size: 18px; color: #fff; }
.footer-stats span { font-size: 11px; color: #64748b; }
.footer-contact li { font-size: 13px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 20px 0; text-align: center; font-size: 13px; color: #64748b; }
.footer-bottom a { color: #64748b; }

/* --- Empty State --- */
.empty-state { text-align: center; padding: 60px 20px; color: var(--text-light); }

/* --- Responsive --- */
@media (max-width: 1024px) {
    .service-cards { grid-template-columns: repeat(2, 1fr); }
    .solution-cards { grid-template-columns: repeat(2, 1fr); }
    .trust-grid { grid-template-columns: repeat(2, 1fr); }
    .article-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .pricing-table { grid-template-columns: 1fr; }
    .metrics-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    .service-cards { grid-template-columns: 1fr; }
    .solution-cards { grid-template-columns: 1fr; }
    .case-cards, .case-grid { grid-template-columns: 1fr; }
    .trust-grid { grid-template-columns: 1fr; }
    .article-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: 28px; }
    .hero h1 .highlight { font-size: 18px; }
    .hero-stats { gap: 20px; }
    .stat-item strong { font-size: 24px; }
    .process-steps { flex-direction: column; }
    .process-step::after { display: none; }
    .metrics-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-info-grid { grid-template-columns: 1fr; }
    .service-detail-card { flex-direction: column; }
    .solution-detail-card { flex-direction: column; }
    .solution-detail-card a { flex-direction: column; }
    .header-contact .header-phone { display: none; }
    .main-nav { display: none; }
    .main-nav.show { display: block; position: absolute; top: 64px; left: 0; right: 0; background: #fff; box-shadow: var(--shadow-lg); padding: 10px 0; }
    .main-nav.show ul { flex-direction: column; }
    .main-nav.show a { padding: 12px 20px; }
    .mobile-menu-btn { display: block; }
    .form-row { flex-direction: column; }
}