/* ========== 基础变量与重置 ========== */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --accent: #f59e0b;
    --bg: #ffffff;
    --bg-gray: #f8fafc;
    --bg-dark: #0f172a;
    --text: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --border: #e2e8f0;
    --radius: 8px;
    --radius-lg: 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(0,0,0,0.1);
    --max-width: 1200px;
    --header-height: 72px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: var(--text);
    line-height: 1.6;
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: var(--primary); transition: color 0.2s; }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; height: auto; }
ul, ol { list-style: none; }

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

/* ========== 按钮 ========== */
.btn {
    display: inline-block; padding: 10px 24px; border-radius: var(--radius);
    font-size: 15px; font-weight: 500; cursor: pointer; transition: all 0.2s;
    border: 2px solid transparent; text-align: center;
}
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; }
.btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-lg { padding: 14px 36px; font-size: 17px; border-radius: var(--radius-lg); }
.btn-link { background: none; border: none; color: var(--primary); padding: 0; }
.btn-link:hover { text-decoration: underline; }
.btn-block { display: block; width: 100%; }
.btn-sm { padding: 5px 12px; font-size: 13px; }
.btn-danger { background: #ef4444; color: #fff; border-color: #ef4444; }
.btn-danger:hover { background: #dc2626; }

/* ========== 导航栏 ========== */
.site-header {
    position: sticky; top: 0; z-index: 1000; background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px); border-bottom: 1px solid var(--border);
    height: var(--header-height);
}
.nav-container {
    display: flex; align-items: center; justify-content: space-between;
    height: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 20px;
}
.logo { display: flex; align-items: center; gap: 8px; font-size: 20px; font-weight: 700; color: var(--text); }
.logo-icon { font-size: 28px; }
.logo:hover { color: var(--primary); }
.main-nav ul { display: flex; gap: 4px; }
.main-nav a {
    display: block; padding: 8px 14px; font-size: 14px; color: var(--text-secondary);
    border-radius: var(--radius); font-weight: 500; transition: all 0.2s;
}
.main-nav a:hover, .main-nav a.active {
    color: var(--primary); background: rgba(37,99,235,0.06);
}

.mobile-menu-btn { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; z-index: 1001; }
.mobile-menu-btn span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 1px; transition: all 0.3s; }

/* ========== 页脚 ========== */
.site-footer { background: var(--bg-dark); color: #cbd5e1; padding: 60px 0 30px; margin-top: 80px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 40px; }
.footer-col h4 { color: #fff; margin-bottom: 16px; font-size: 16px; }
.footer-col p { font-size: 14px; line-height: 1.8; margin-bottom: 6px; }
.footer-col a { color: #94a3b8; font-size: 14px; line-height: 2.2; }
.footer-col a:hover { color: #fff; }
.contact-icon { margin-right: 6px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); margin-top: 40px; padding-top: 20px; text-align: center; font-size: 13px; color: #64748b; }
.footer-bottom a { color: #64748b; }
.footer-bottom p { margin-bottom: 4px; }

/* ========== Hero区 ========== */
.hero {
    padding: 80px 0 100px; background: linear-gradient(135deg, #eff6ff 0%, #f0f9ff 50%, #fef3c7 100%);
    overflow: hidden;
}
.hero .container { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-title { font-size: 42px; font-weight: 800; line-height: 1.3; color: var(--text); margin-bottom: 20px; }
.hero-subtitle { font-size: 18px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 32px; }
.hero-cta { display: flex; gap: 16px; margin-bottom: 20px; }
.hero-note { font-size: 13px; color: var(--text-light); }

/* Hero 可视化模型 */
.hero-visual { display: flex; justify-content: center; }
.dashboard-mockup {
    width: 420px; background: #fff; border-radius: 16px;
    box-shadow: var(--shadow-lg); overflow: hidden;
}
.mockup-header { height: 36px; background: #f1f5f9; border-bottom: 1px solid var(--border); }
.mockup-body { display: flex; height: 260px; }
.mockup-map {
    flex: 2; background: #f8fafc; position: relative;
    background-image:
        linear-gradient(rgba(0,0,0,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,0,0,0.03) 1px, transparent 1px);
    background-size: 20px 20px;
}
.map-point {
    position: absolute; width: 14px; height: 14px; border-radius: 50%;
    background: var(--primary); border: 3px solid rgba(37,99,235,0.3);
}
.map-point.p1 { top: 30%; left: 25%; }
.map-point.p2 { top: 55%; left: 60%; }
.map-point.p3 { top: 20%; left: 70%; }
.map-route {
    position: absolute; height: 3px; background: var(--primary);
    transform-origin: left center; opacity: 0.5;
}
.map-route.r1 { top: 38%; left: 20%; width: 50%; transform: rotate(15deg); }
.map-route.r2 { top: 50%; left: 35%; width: 40%; transform: rotate(-20deg); }
.mockup-sidebar { flex: 1; padding: 16px; background: #fff; border-left: 1px solid var(--border); }
.sidebar-item { height: 14px; background: #f1f5f9; border-radius: 4px; margin-bottom: 12px; }
.sidebar-item:last-child { height: 80px; margin-top: 20px; background: #e8f0fe; }

/* ========== 价值主张区 ========== */
.value-props { padding: 100px 0; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-header h2 { font-size: 32px; font-weight: 700; margin-bottom: 12px; }
.section-header p { font-size: 18px; color: var(--text-secondary); }
.props-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.prop-card {
    text-align: center; padding: 40px 24px; border-radius: var(--radius-lg);
    background: var(--bg); border: 1px solid var(--border); transition: all 0.3s;
}
.prop-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.prop-icon { font-size: 40px; margin-bottom: 16px; }
.prop-card h3 { font-size: 18px; margin-bottom: 12px; color: var(--text); }
.prop-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }

/* ========== 解决方案预览 ========== */
.solutions-preview { padding: 100px 0; background: var(--bg-gray); }
.solutions-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.solution-card {
    background: #fff; padding: 40px 28px; border-radius: var(--radius-lg);
    border: 1px solid var(--border); transition: all 0.3s;
}
.solution-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.solution-avatar { font-size: 48px; margin-bottom: 16px; }
.solution-card h3 { font-size: 20px; margin-bottom: 16px; }
.solution-card ul li {
    font-size: 14px; color: var(--text-secondary); padding: 6px 0;
    border-bottom: 1px solid #f8fafc;
}
.solution-card .btn-link { margin-top: 16px; display: inline-block; }

/* ========== 客户案例预览 ========== */
.cases-preview { padding: 100px 0; }
.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 40px; }
.case-card {
    background: #fff; border-radius: var(--radius-lg); overflow: hidden;
    border: 1px solid var(--border); transition: all 0.3s;
}
.case-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.case-cover { height: 160px; overflow: hidden; background: #f1f5f9; }
.case-cover img { width: 100%; height: 100%; object-fit: cover; }
.case-info { padding: 20px; }
.case-info h4 { font-size: 16px; margin-bottom: 6px; }
.case-info p { font-size: 14px; color: var(--text-secondary); }
.section-cta { text-align: center; }

/* ========== CTA区 ========== */
.cta-section {
    padding: 80px 20px; text-align: center;
    background: linear-gradient(135deg, var(--primary) 0%, #7c3aed 100%);
    color: #fff; margin-top: 0;
}
.cta-section h2 { font-size: 32px; font-weight: 700; margin-bottom: 12px; }
.cta-section p { font-size: 18px; opacity: 0.9; margin-bottom: 32px; }
.cta-section .btn-primary { background: #fff; color: var(--primary); border-color: #fff; }
.cta-section .btn-primary:hover { background: #f8fafc; }
.cta-section .btn-outline { border-color: #fff; color: #fff; }
.cta-section .btn-outline:hover { background: #fff; color: var(--primary); }
.cta-actions { display: flex; gap: 16px; justify-content: center; }

/* ========== 页面Hero头 ========== */
.page-hero {
    padding: 80px 0; text-align: center;
    background: linear-gradient(135deg, #eff6ff 0%, #f0f9ff 100%);
}
.page-hero h1 { font-size: 36px; font-weight: 700; margin-bottom: 12px; }
.page-hero p { font-size: 18px; color: var(--text-secondary); max-width: 600px; margin: 0 auto; }
.page-hero-sm { padding: 40px 0; }
.page-hero-sm h1 { font-size: 28px; }

/* ========== 面包屑 ========== */
.breadcrumb { font-size: 14px; color: var(--text-light); margin-bottom: 12px; }
.breadcrumb a { color: var(--primary); }
.guide-badge {
    display: inline-block; background: var(--primary); color: #fff;
    padding: 2px 10px; border-radius: 12px; font-size: 12px; margin-top: 8px;
}

/* ========== 功能区块 ========== */
.feature-section { padding: 80px 0; }
.feature-section.feature-alt { background: var(--bg-gray); }
.feature-row { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.feature-row.reverse { direction: rtl; }
.feature-row.reverse > * { direction: ltr; }
.feature-badge {
    display: inline-block; background: rgba(37,99,235,0.1); color: var(--primary);
    padding: 4px 14px; border-radius: 20px; font-size: 13px; font-weight: 500; margin-bottom: 16px;
}
.feature-text h2 { font-size: 28px; font-weight: 700; margin-bottom: 16px; }
.feature-text p { font-size: 16px; color: var(--text-secondary); margin-bottom: 20px; }
.feature-list li { padding: 8px 0; font-size: 15px; color: var(--text); }

.feature-visual { display: flex; justify-content: center; }
.visual-mockup {
    width: 100%; max-width: 400px; background: #fff;
    border-radius: 12px; box-shadow: var(--shadow-lg); overflow: hidden;
}
.mockup-header-sm { padding: 10px 16px; background: #f1f5f9; font-size: 13px; color: var(--text-secondary); border-bottom: 1px solid var(--border); }
.mockup-map-lg { height: 240px; background: #f8fafc; position: relative; }
.lg-point { position: absolute; width: 10px; height: 10px; border-radius: 50%; background: var(--primary); }
.lg-point.a { top: 30%; left: 20%; }
.lg-point.b { top: 50%; left: 55%; }
.lg-point.c { top: 25%; left: 65%; }
.lg-route { position: absolute; height: 2px; background: var(--primary); opacity: 0.4; }
.lg-route.r1 { top: 35%; left: 15%; width: 55%; transform: rotate(10deg); }
.lg-route.r2 { top: 45%; left: 30%; width: 35%; transform: rotate(-15deg); }
.lg-route.r3 { top: 55%; left: 20%; width: 50%; transform: rotate(-5deg); }
.mockup-chart {
    height: 200px; padding: 20px; display: flex; align-items: flex-end; gap: 12px;
}
.chart-bar { flex: 1; background: linear-gradient(to top, var(--primary), var(--primary-light)); border-radius: 6px 6px 0 0; }
.mockup-doc { padding: 20px; }
.doc-line { height: 10px; background: #f1f5f9; border-radius: 4px; margin-bottom: 10px; }
.doc-line.w80 { width: 80%; } .doc-line.w60 { width: 60%; } .doc-line.w90 { width: 90%; } .doc-line.w50 { width: 50%; }
.doc-table { border: 1px solid var(--border); border-radius: 6px; overflow: hidden; margin-top: 16px; }
.doc-row { display: flex; }
.doc-row span { flex: 1; height: 30px; border-right: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.doc-row:last-child span { border-bottom: none; }
.doc-row span:last-child { border-right: none; }
.pie-segment { width: 100px; height: 100px; border-radius: 50%; background: conic-gradient(var(--primary) 0% 40%, #f59e0b 40% 65%, #10b981 65% 85%, #8b5cf6 85% 100%); margin: 40px auto; }

/* ========== 解决方案页 ========== */
.solution-detail { padding: 80px 0; }
.solution-detail.solution-alt { background: var(--bg-gray); }
.solution-header { display: flex; align-items: center; gap: 24px; margin-bottom: 40px; }
.solution-avatar-lg { font-size: 64px; }
.solution-header h2 { font-size: 28px; font-weight: 700; }
.solution-subtitle { font-size: 16px; color: var(--text-secondary); }
.pain-solution-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.pain-box, .value-box { padding: 30px; border-radius: var(--radius-lg); }
.pain-box { background: #fef2f2; border: 1px solid #fecaca; }
.pain-box h3 { color: #dc2626; margin-bottom: 16px; }
.pain-box ul li { padding: 6px 0; font-size: 15px; color: var(--text); }
.value-box { background: #f0fdf4; border: 1px solid #bbf7d0; }
.value-box h3 { color: #16a34a; margin-bottom: 16px; }
.value-box ul li { padding: 8px 0; font-size: 15px; color: var(--text); border-bottom: 1px solid #dcfce7; }
.value-box ul li:last-child { border-bottom: none; }

/* ========== 案例页 ========== */
.cases-full { padding: 60px 0; }
.cases-list { max-width: 900px; margin: 0 auto; }
.case-detail-card {
    background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg);
    padding: 32px; margin-bottom: 30px; transition: all 0.3s;
}
.case-detail-card:hover { box-shadow: var(--shadow-lg); }
.case-card-header { display: flex; gap: 20px; margin-bottom: 20px; }
.case-card-img { width: 120px; height: 80px; overflow: hidden; border-radius: var(--radius); flex-shrink: 0; background: #f1f5f9; }
.case-card-img img { width: 100%; height: 100%; object-fit: cover; }
.case-card-meta h3 { font-size: 20px; margin-bottom: 6px; }
.case-company { font-size: 14px; color: var(--text-secondary); }
.case-section { margin-bottom: 20px; }
.case-section h4 { font-size: 16px; color: var(--primary); margin-bottom: 8px; }
.case-section p { font-size: 15px; color: var(--text); line-height: 1.8; }
.metrics-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; }
.metric-item {
    text-align: center; padding: 16px; background: var(--bg-gray);
    border-radius: var(--radius);
}
.metric-value { display: block; font-size: 24px; font-weight: 700; color: var(--primary); }
.metric-key { font-size: 13px; color: var(--text-secondary); }

/* ========== 价格页 ========== */
.pricing-section { padding: 60px 0 80px; }
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; max-width: 1000px; margin: 0 auto; }
.pricing-card {
    background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg);
    padding: 40px 28px; text-align: center; position: relative; transition: all 0.3s;
}
.pricing-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.pricing-card.recommended {
    border-color: var(--primary); box-shadow: 0 0 0 2px var(--primary);
}
.pricing-badge {
    position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
    background: var(--primary); color: #fff; padding: 4px 20px; border-radius: 20px;
    font-size: 13px; font-weight: 500;
}
.pricing-name { font-size: 20px; margin-bottom: 16px; }
.pricing-price { margin-bottom: 24px; }
.price-amount { font-size: 40px; font-weight: 800; color: var(--primary); }
.price-amount.discount { color: #e74c3c; }
.price-original {
    display: block; font-size: 18px; color: #999; 
    text-decoration: line-through; margin-bottom: 4px;
}
.price-discount-label {
    font-size: 13px; color: #e74c3c; font-weight: 600;
}
.price-unit { font-size: 16px; color: var(--text-secondary); }
.pricing-features {
    display: flex; flex-wrap: wrap; gap: 8px;
    margin-bottom: 28px; padding: 0;
}
.pricing-features li {
    display: inline-block;
    padding: 6px 12px; font-size: 13px; color: var(--text-secondary);
    background: var(--bg-gray); border-radius: 6px;
    border: 1px solid #eee; white-space: nowrap;
}

/* ========== FAQ ========== */
.faq-section { padding: 80px 0; background: var(--bg-gray); }
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; max-width: 900px; margin: 0 auto; }
.faq-item { background: #fff; padding: 24px; border-radius: var(--radius); border: 1px solid var(--border); }
.faq-item h4 { font-size: 16px; margin-bottom: 8px; color: var(--text); }
.faq-item p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }

/* ========== 操作指南页 ========== */
.guides-section { padding: 60px 0; }
.guide-categories { display: flex; gap: 10px; margin-bottom: 40px; flex-wrap: wrap; justify-content: center; }
.category-tag {
    padding: 8px 20px; border-radius: 20px; font-size: 14px;
    color: var(--text-secondary); background: var(--bg-gray); border: 1px solid var(--border);
    transition: all 0.2s;
}
.category-tag:hover, .category-tag.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.guides-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.guide-card {
    display: block; background: #fff; border: 1px solid var(--border);
    border-radius: var(--radius-lg); overflow: hidden; transition: all 0.3s;
}
.guide-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); color: var(--text); }
.guide-cover { height: 160px; overflow: hidden; background: #f1f5f9; }
.guide-cover img { width: 100%; height: 100%; object-fit: cover; }
.guide-info { padding: 20px; }
.guide-category { display: inline-block; background: rgba(37,99,235,0.1); color: var(--primary); padding: 2px 10px; border-radius: 12px; font-size: 12px; margin-bottom: 8px; }
.guide-info h3 { font-size: 17px; margin-bottom: 8px; color: var(--text); }
.guide-excerpt { font-size: 14px; color: var(--text-secondary); margin-bottom: 12px; }
.guide-date { font-size: 12px; color: var(--text-light); }
.guide-meta { font-size: 14px; color: var(--text-light); margin-top: 8px; }

/* 指南详情 */
.guide-content-section { padding: 60px 0; }
.guide-content { max-width: 800px; margin: 0 auto; }
.guide-content-cover { margin-bottom: 30px; border-radius: var(--radius-lg); overflow: hidden; }
.guide-content-cover img { width: 100%; }
.guide-body { font-size: 16px; line-height: 1.9; color: var(--text); }

/* ========== 关于我们 ========== */
.about-section { padding: 60px 0; }
.about-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 60px; }
.about-content h2 { font-size: 28px; margin-bottom: 16px; }
.about-content h3 { font-size: 20px; margin: 30px 0 12px; }
.about-content p { font-size: 16px; line-height: 1.8; color: var(--text-secondary); margin-bottom: 12px; }
.about-contact-info { margin-top: 30px; padding: 24px; background: var(--bg-gray); border-radius: var(--radius); }
.about-contact-info p { margin-bottom: 8px; }
.about-logo { margin-bottom: 30px; }
.about-logo img { max-width: 200px; }
.about-qr { text-align: center; }
.about-qr img { width: 160px; height: 160px; object-fit: contain; border: 1px solid var(--border); border-radius: var(--radius); }
.about-qr p { font-size: 14px; color: var(--text-secondary); margin-top: 8px; }

/* ========== 空状态 ========== */
.empty-state { text-align: center; padding: 60px 20px; color: var(--text-secondary); }
.empty-icon { font-size: 48px; margin-bottom: 16px; }
.empty-state h3 { font-size: 20px; margin-bottom: 8px; color: var(--text); }
.empty-state p { font-size: 15px; }

/* ========== 动画 ========== */
.animate-fadeInUp { animation: fadeInUp 0.6s ease-out both; }
.delay-1 { animation-delay: 0.15s; }
.delay-2 { animation-delay: 0.3s; }
.delay-3 { animation-delay: 0.45s; }
.animate-fadeInRight { animation: fadeInRight 0.6s ease-out both; }

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(30px); }
    to { opacity: 1; transform: translateX(0); }
}

/* ========== 响应式设计 ========== */
@media (max-width: 1024px) {
    .hero-title { font-size: 32px; }
    .props-grid { grid-template-columns: repeat(2, 1fr); }
    .solutions-grid { grid-template-columns: 1fr; }
    .feature-row { grid-template-columns: 1fr; gap: 40px; }
    .feature-row.reverse { direction: ltr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    :root { --header-height: 60px; }
    .hero { padding: 60px 0; }
    .hero .container { grid-template-columns: 1fr; gap: 40px; }
    .hero-title { font-size: 28px; }
    .hero-subtitle { font-size: 16px; }
    .hero-image { display: none; }
    .hero-cta { flex-direction: column; }
    .hero-cta .btn { width: 100%; }

    .props-grid { grid-template-columns: 1fr; }
    .cases-grid { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; }
    .pain-solution-grid { grid-template-columns: 1fr; }
    .faq-grid { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; }
    .guides-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }

    /* 移动端导航 */
    .mobile-menu-btn { display: flex; }
    .main-nav {
        position: fixed; top: 0; right: -100%; width: 280px; height: 100vh;
        background: #fff; box-shadow: -4px 0 20px rgba(0,0,0,0.1);
        padding: 80px 20px 20px; transition: right 0.3s; z-index: 1000;
    }
    .main-nav.open { right: 0; }
    .main-nav ul { flex-direction: column; gap: 0; }
    .main-nav a { padding: 12px 16px; font-size: 15px; }

    .section-header h2 { font-size: 24px; }
    .solution-header { flex-direction: column; text-align: center; }
    .case-card-header { flex-direction: column; }
    .case-card-img { width: 100%; height: 140px; }

    .btn-lg { padding: 12px 24px; font-size: 15px; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 24px; }
    .hero-subtitle { font-size: 14px; }
    .page-hero h1 { font-size: 24px; }
    .cta-section h2 { font-size: 22px; }
    .container { padding: 0 16px; }
}