/* ============================================================
   欧交易所注册 | 对接全球数字货币交易平台 - 主样式表
   ============================================================ */

/* --- CSS Variables --- */
:root {
  --bg-primary: #0a0f1a;
  --bg-secondary: #111827;
  --bg-card: #1a2236;
  --bg-card-hover: #1f2a3f;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-blue: #2563eb;
  --accent-blue-light: #3b82f6;
  --accent-blue-dark: #1d4ed8;
  --accent-gold: #f59e0b;
  --accent-gold-light: #fbbf24;
  --accent-green: #10b981;
  --accent-green-light: #34d399;
  --accent-purple: #7c3aed;
  --accent-purple-light: #8b5cf6;
  --border-color: #1e293b;
  --border-light: #334155;
  --gradient-hero: linear-gradient(135deg, #0a0f1a 0%, #111827 50%, #0f172a 100%);
  --gradient-blue: linear-gradient(135deg, #2563eb, #7c3aed);
  --gradient-card: linear-gradient(135deg, #1a2236 0%, #0f172a 100%);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.5);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.6);
  --shadow-blue: 0 0 20px rgba(37,99,235,0.3);
  --shadow-gold: 0 0 20px rgba(245,158,11,0.3);
  --shadow-green: 0 0 20px rgba(16,185,129,0.3);
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  --font-mono: 'Courier New', monospace;
  --max-width: 1200px;
  --header-height: 72px;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent-blue-light); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--accent-gold); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

/* --- Utility --- */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section-title { font-size: 2.2rem; font-weight: 700; text-align: center; margin-bottom: 1rem; }
.section-subtitle { font-size: 1.1rem; color: var(--text-secondary); text-align: center; margin-bottom: 3rem; max-width: 700px; margin-left: auto; margin-right: auto; }
.text-accent-blue { color: var(--accent-blue-light); }
.text-accent-gold { color: var(--accent-gold); }
.text-accent-green { color: var(--accent-green); }
.text-accent-purple { color: var(--accent-purple-light); }

/* --- Header & Navigation --- */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(10,15,26,0.95); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  height: var(--header-height);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.logo { font-size: 1.5rem; font-weight: 800; color: var(--text-primary); }
.logo span { background: var(--gradient-blue); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-links { display: flex; gap: 32px; align-items: center; }
.nav-links a { color: var(--text-secondary); font-weight: 500; font-size: 0.95rem; transition: color var(--transition-fast); position: relative; }
.nav-links a:hover, .nav-links a.active { color: var(--accent-blue-light); }
.nav-links a::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px; background: var(--accent-blue-light); transition: width var(--transition-normal); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-cta { background: var(--gradient-blue); color: #fff !important; padding: 8px 20px; border-radius: 8px; font-weight: 600; }
.nav-cta:hover { box-shadow: var(--shadow-blue); transform: translateY(-1px); }
.nav-cta::after { display: none !important; }
.mobile-toggle { display: none; background: none; border: none; color: var(--text-primary); font-size: 1.5rem; cursor: pointer; }

/* --- Hero Section --- */
.hero {
  background: var(--gradient-hero);
  padding: 100px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; top: -50%; right: -20%; width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(37,99,235,0.12) 0%, transparent 70%);
  border-radius: 50%;
}
.hero::after {
  content: ''; position: absolute; bottom: -30%; left: -10%; width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(245,158,11,0.08) 0%, transparent 70%);
  border-radius: 50%;
}
.hero .container { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; position: relative; z-index: 1; }
.hero-content h1 { font-size: 3rem; font-weight: 800; line-height: 1.2; margin-bottom: 1.5rem; }
.hero-content h1 .highlight { background: linear-gradient(135deg, var(--accent-blue-light), var(--accent-purple-light), var(--accent-gold)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-content p { font-size: 1.15rem; color: var(--text-secondary); margin-bottom: 2rem; max-width: 540px; }
.hero-features { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 2rem; }
.hero-features .tag { background: rgba(37,99,235,0.15); color: var(--accent-blue-light); padding: 6px 16px; border-radius: 20px; font-size: 0.85rem; font-weight: 500; border: 1px solid rgba(37,99,235,0.25); }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-image img { border-radius: 16px; box-shadow: var(--shadow-lg); }
.hero-image { position: relative; }
.hero-image::before {
  content: ''; position: absolute; inset: -4px; border-radius: 20px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple), var(--accent-gold));
  opacity: 0.3; z-index: -1;
}

/* --- Buttons --- */
.btn { display: inline-block; padding: 14px 32px; border-radius: 10px; font-weight: 600; font-size: 1rem; cursor: pointer; transition: all var(--transition-normal); text-align: center; border: none; }
.btn-primary { background: var(--gradient-blue); color: #fff; box-shadow: var(--shadow-blue); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 30px rgba(37,99,235,0.5); color: #fff; }
.btn-gold { background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light)); color: #0a0f1a; font-weight: 700; box-shadow: var(--shadow-gold); }
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 0 30px rgba(245,158,11,0.5); color: #0a0f1a; }
.btn-outline { background: transparent; border: 2px solid var(--accent-blue); color: var(--accent-blue-light); }
.btn-outline:hover { background: rgba(37,99,235,0.1); transform: translateY(-2px); color: var(--accent-blue-light); }
.btn-lg { padding: 16px 40px; font-size: 1.1rem; }

/* --- Stats Section --- */
.stats { padding: 60px 0; background: var(--bg-secondary); border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat-item .stat-number { font-size: 2.5rem; font-weight: 800; background: linear-gradient(135deg, var(--accent-blue-light), var(--accent-purple-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stat-item .stat-label { font-size: 0.95rem; color: var(--text-secondary); margin-top: 4px; }

/* --- Features Section --- */
.features { padding: 80px 0; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: 16px; padding: 32px; transition: all var(--transition-normal);
  position: relative; overflow: hidden;
}
.feature-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--gradient-blue); transform: scaleX(0); transition: transform var(--transition-normal);
}
.feature-card:hover::before { transform: scaleX(1); }
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--accent-blue); }
.feature-card .feature-icon { font-size: 2.5rem; margin-bottom: 1rem; display: block; }
.feature-card h3 { font-size: 1.2rem; margin-bottom: 0.75rem; }
.feature-card p { color: var(--text-secondary); font-size: 0.95rem; }

/* --- Process Section --- */
.process { padding: 80px 0; background: var(--bg-secondary); }
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.process-step { text-align: center; position: relative; }
.process-step .step-number {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--gradient-blue); color: #fff; font-size: 1.3rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center; margin: 0 auto 1rem;
  box-shadow: var(--shadow-blue);
}
.process-step h3 { font-size: 1.05rem; margin-bottom: 0.5rem; }
.process-step p { color: var(--text-secondary); font-size: 0.9rem; }
.process-step::after {
  content: ''; position: absolute; top: 28px; left: 65%;
  width: 70%; height: 2px; background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple)); opacity: 0.4;
}
.process-step:last-child::after { display: none; }

/* --- CTA Section --- */
.cta-section { padding: 80px 0; position: relative; overflow: hidden; }
.cta-section::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, rgba(37,99,235,0.1) 0%, transparent 70%);
}
.cta-box { 
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: 20px; padding: 60px; text-align: center; position: relative; z-index: 1;
  box-shadow: var(--shadow-lg);
}
.cta-box h2 { font-size: 2rem; margin-bottom: 1rem; }
.cta-box p { color: var(--text-secondary); margin-bottom: 2rem; max-width: 600px; margin-left: auto; margin-right: auto; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* --- Page Header --- */
.page-header { padding: 80px 0 50px; background: var(--gradient-hero); text-align: center; border-bottom: 1px solid var(--border-color); }
.page-header h1 { font-size: 2.5rem; font-weight: 800; margin-bottom: 0.75rem; }
.page-header p { color: var(--text-secondary); font-size: 1.1rem; max-width: 600px; margin: 0 auto; }

/* --- About Page --- */
.about-intro { padding: 60px 0; }
.about-intro .container { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-intro img { border-radius: 16px; box-shadow: var(--shadow-lg); }
.about-intro h2 { font-size: 1.8rem; margin-bottom: 1rem; }
.about-intro p { color: var(--text-secondary); margin-bottom: 1rem; }

.timeline { padding: 60px 0; background: var(--bg-secondary); }
.timeline-list { position: relative; max-width: 800px; margin: 0 auto; }
.timeline-list::before { content: ''; position: absolute; left: 20px; top: 0; bottom: 0; width: 2px; background: var(--gradient-blue); }
.timeline-item { position: relative; padding-left: 56px; margin-bottom: 40px; }
.timeline-item::before {
  content: ''; position: absolute; left: 12px; top: 4px;
  width: 18px; height: 18px; border-radius: 50%; background: var(--accent-blue);
  box-shadow: 0 0 10px rgba(37,99,235,0.5);
}
.timeline-item .year { font-size: 1.1rem; font-weight: 700; color: var(--accent-gold); margin-bottom: 4px; }
.timeline-item h3 { font-size: 1.1rem; margin-bottom: 4px; }
.timeline-item p { color: var(--text-secondary); font-size: 0.95rem; }

.team { padding: 60px 0; }
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.team-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 16px; padding: 24px; text-align: center; transition: all var(--transition-normal); }
.team-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.team-card img { width: 96px; height: 96px; border-radius: 50%; margin: 0 auto 1rem; object-fit: cover; border: 3px solid var(--accent-blue); }
.team-card h3 { font-size: 1.05rem; margin-bottom: 4px; }
.team-card .role { color: var(--accent-blue-light); font-size: 0.85rem; font-weight: 500; }

.security { padding: 60px 0; background: var(--bg-secondary); }
.security-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.security-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 16px; padding: 28px; text-align: center; transition: all var(--transition-normal); }
.security-card:hover { border-color: var(--accent-green); box-shadow: var(--shadow-green); transform: translateY(-4px); }
.security-card .sec-icon { font-size: 2rem; margin-bottom: 0.75rem; display: block; }
.security-card h3 { font-size: 1.05rem; margin-bottom: 0.5rem; }
.security-card p { color: var(--text-secondary); font-size: 0.9rem; }

/* --- Services Page --- */
.services-page { padding: 60px 0; }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: 16px; padding: 36px 28px; transition: all var(--transition-normal);
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--accent-blue); }
.service-card .service-icon { font-size: 2.5rem; margin-bottom: 1rem; display: block; }
.service-card h3 { font-size: 1.2rem; margin-bottom: 0.75rem; }
.service-card p { color: var(--text-secondary); font-size: 0.95rem; margin-bottom: 1rem; }
.service-card .service-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.service-card .service-tags span { background: rgba(37,99,235,0.1); color: var(--accent-blue-light); padding: 4px 10px; border-radius: 12px; font-size: 0.8rem; }

.service-table-wrap { padding: 60px 0; background: var(--bg-secondary); }
.table-responsive { overflow-x: auto; border-radius: 12px; border: 1px solid var(--border-color); }
.service-table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
.service-table th { background: var(--bg-card); padding: 14px 16px; text-align: left; font-weight: 600; color: var(--accent-blue-light); border-bottom: 2px solid var(--border-color); }
.service-table td { padding: 14px 16px; border-bottom: 1px solid var(--border-color); color: var(--text-secondary); }
.service-table tr:hover td { background: rgba(37,99,235,0.05); }
.service-table .check { color: var(--accent-green); font-weight: 700; }

/* --- FAQ Page --- */
.faq-page { padding: 60px 0; }
.faq-search { max-width: 600px; margin: 0 auto 3rem; }
.faq-search input { width: 100%; padding: 14px 20px; border-radius: 12px; border: 1px solid var(--border-color); background: var(--bg-card); color: var(--text-primary); font-size: 1rem; outline: none; transition: border-color var(--transition-fast); }
.faq-search input:focus { border-color: var(--accent-blue); box-shadow: var(--shadow-blue); }
.faq-filter { display: flex; gap: 10px; justify-content: center; margin-bottom: 2rem; flex-wrap: wrap; }
.faq-filter button { padding: 8px 20px; border-radius: 20px; border: 1px solid var(--border-color); background: transparent; color: var(--text-secondary); cursor: pointer; font-size: 0.9rem; transition: all var(--transition-fast); }
.faq-filter button:hover, .faq-filter button.active { background: rgba(37,99,235,0.15); color: var(--accent-blue-light); border-color: var(--accent-blue); }
.faq-category { margin-bottom: 2.5rem; }
.faq-category h2 { font-size: 1.4rem; margin-bottom: 1.5rem; padding-bottom: 0.5rem; border-bottom: 2px solid var(--accent-blue); display: inline-block; }
.faq-item { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 12px; margin-bottom: 12px; overflow: hidden; transition: all var(--transition-fast); }
.faq-item:hover { border-color: var(--accent-blue); }
.faq-item summary { padding: 18px 24px; cursor: pointer; font-weight: 600; font-size: 1.05rem; display: flex; justify-content: space-between; align-items: center; user-select: none; }
.faq-item summary::after { content: '+'; font-size: 1.2rem; color: var(--accent-blue-light); transition: transform var(--transition-fast); }
.faq-item[open] summary::after { content: '−'; transform: rotate(180deg); }
.faq-item .faq-answer { padding: 0 24px 20px; color: var(--text-secondary); font-size: 0.95rem; line-height: 1.8; }

/* --- Contact Page --- */
.contact-page { padding: 60px 0; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.contact-form { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 16px; padding: 36px; }
.contact-form h2 { font-size: 1.5rem; margin-bottom: 1.5rem; }
.form-group { margin-bottom: 1.25rem; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 500; font-size: 0.9rem; color: var(--text-secondary); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 12px 16px; border-radius: 10px;
  border: 1px solid var(--border-color); background: var(--bg-primary);
  color: var(--text-primary); font-size: 0.95rem; transition: all var(--transition-fast);
  font-family: inherit;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--accent-blue); outline: none; box-shadow: var(--shadow-blue);
}
.form-group textarea { min-height: 140px; resize: vertical; }
.contact-info-cards { display: flex; flex-direction: column; gap: 20px; }
.contact-info-card {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: 16px; padding: 24px; transition: all var(--transition-normal);
}
.contact-info-card:hover { border-color: var(--accent-blue); transform: translateX(4px); }
.contact-info-card h3 { font-size: 1.05rem; margin-bottom: 8px; }
.contact-info-card p { color: var(--text-secondary); font-size: 0.95rem; }
.contact-info-card .info-icon { font-size: 1.5rem; margin-bottom: 0.5rem; display: block; }

.social-links { padding: 60px 0; background: var(--bg-secondary); text-align: center; }
.social-grid { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; margin-top: 2rem; }
.social-item { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 12px; padding: 24px 32px; transition: all var(--transition-normal); min-width: 140px; }
.social-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--accent-blue); }
.social-item .soc-icon { font-size: 2rem; margin-bottom: 0.5rem; display: block; }
.social-item span { color: var(--text-secondary); font-size: 0.9rem; }

.business-section { padding: 60px 0; }
.business-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.business-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 16px; padding: 28px; text-align: center; transition: all var(--transition-normal); }
.business-card:hover { transform: translateY(-4px); border-color: var(--accent-gold); box-shadow: var(--shadow-gold); }
.business-card h3 { font-size: 1.05rem; margin-bottom: 0.5rem; }
.business-card p { color: var(--text-secondary); font-size: 0.9rem; }

/* --- Footer --- */
.site-footer {
  background: var(--bg-secondary); border-top: 1px solid var(--border-color);
  padding: 50px 0 30px; color: var(--text-muted);
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-col h4 { font-size: 1.05rem; margin-bottom: 1rem; color: var(--text-primary); }
.footer-col p { font-size: 0.9rem; line-height: 1.8; }
.footer-col a { display: block; padding: 4px 0; font-size: 0.9rem; color: var(--text-muted); }
.footer-col a:hover { color: var(--accent-blue-light); }
.footer-bottom { border-top: 1px solid var(--border-color); padding-top: 20px; text-align: center; font-size: 0.85rem; }

/* --- Breadcrumb --- */
.breadcrumb { padding: 16px 0; font-size: 0.9rem; color: var(--text-muted); }
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--accent-blue-light); }
.breadcrumb span { color: var(--text-primary); }

/* --- Animations --- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; } to { opacity: 1; }
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(37,99,235,0.4); }
  50% { box-shadow: 0 0 0 20px rgba(37,99,235,0); }
}
@keyframes tickerGlow {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}
@keyframes nodeBlink {
  0%, 100% { opacity: 0.5; transform: scale(0.8); }
  50% { opacity: 1; transform: scale(1.1); }
}
.animate-fadein { animation: fadeIn 0.8s ease forwards; }
.animate-fadein-delay { animation: fadeInUp 0.8s ease 0.2s forwards; opacity: 0; }
.reveal { opacity: 0; transform: translateY(30px); transition: all 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.btn-pulse { animation: pulse 2s infinite; }

/* --- Ticker Animation --- */
.ticker-bar { background: linear-gradient(90deg, var(--accent-green), var(--accent-blue)); padding: 8px 0; font-size: 0.85rem; font-weight: 600; color: #fff; text-align: center; animation: tickerGlow 2s ease-in-out infinite; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .hero .container { grid-template-columns: 1fr; text-align: center; }
  .hero-content p { margin-left: auto; margin-right: auto; }
  .hero-features { justify-content: center; }
  .hero-buttons { justify-content: center; }
  .hero-image { max-width: 500px; margin: 0 auto; }
  .features-grid, .services-grid, .security-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .process-step::after { display: none; }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .business-grid { grid-template-columns: 1fr; }
  .about-intro .container { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; position: absolute; top: var(--header-height); left: 0; right: 0; background: rgba(10,15,26,0.98); flex-direction: column; padding: 20px; gap: 16px; border-bottom: 1px solid var(--border-color); }
  .nav-links.active { display: flex; }
  .mobile-toggle { display: block; }
  .hero-content h1 { font-size: 2rem; }
  .section-title { font-size: 1.6rem; }
  .features-grid, .services-grid, .security-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-box { padding: 40px 24px; }
  .page-header h1 { font-size: 1.8rem; }
  .timeline-list::before { left: 14px; }
  .timeline-item { padding-left: 44px; }
  .timeline-item::before { left: 6px; width: 14px; height: 14px; }
}