/* ============================================
   好护师 - 设计系统
   主色: 青色 #2DB4A6 / 辅色: 粉色 #F48FB1
   ============================================ */

:root {
  --teal-50: #e6f7f5;
  --teal-100: #c0e8e2;
  --teal-200: #8ed7cd;
  --teal-300: #5cc5b3;
  --teal-400: #2DB4A6;
  --teal-500: #1a9d90;
  --teal-600: #14837a;
  --teal-700: #0f6a63;
  --teal-800: #0a4f4a;
  --pink-100: #fce4ec;
  --pink-300: #f48fb1;
  --pink-400: #ec6b95;
  --pink-500: #e84a7f;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --white: #ffffff;
  --font-sans: "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", "WenQuanYi Micro Hei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.1);
  --shadow-teal: 0 4px 20px rgba(45,180,166,0.15);
  --shadow-pink: 0 4px 20px rgba(244,143,177,0.15);
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}

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

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

body {
  font-family: var(--font-sans);
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a { color: var(--teal-500); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--teal-600); }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 var(--space-md); }
.section { padding: var(--space-2xl) 0; }
.section-sm { padding: var(--space-xl) 0; }
.text-center { text-align: center; }

.section-title { text-align: center; margin-bottom: var(--space-xl); }
.section-title h2 { font-size: 2.2rem; font-weight: 700; color: var(--gray-800); margin-bottom: var(--space-xs); }
.section-title .subtitle { font-size: 1.05rem; color: var(--gray-500); max-width: 600px; margin: 0 auto; }
.section-title .tag {
  display: inline-block; padding: 4px 16px; background: var(--teal-50);
  color: var(--teal-500); border-radius: var(--radius-full);
  font-size: 0.85rem; font-weight: 600; margin-bottom: var(--space-sm); letter-spacing: 0.5px;
}

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 32px; border-radius: var(--radius-full); font-size: 1rem;
  font-weight: 600; font-family: var(--font-sans); border: none; cursor: pointer;
  transition: var(--transition); white-space: nowrap;
}
.btn-primary { background: var(--teal-400); color: var(--white); box-shadow: var(--shadow-teal); }
.btn-primary:hover { background: var(--teal-500); color: var(--white); transform: translateY(-2px); box-shadow: 0 6px 24px rgba(45,180,166,0.25); }
.btn-secondary { background: var(--white); color: var(--teal-500); border: 2px solid var(--teal-200); }
.btn-secondary:hover { background: var(--teal-50); border-color: var(--teal-400); color: var(--teal-600); }
.btn-pink { background: var(--pink-300); color: var(--white); box-shadow: var(--shadow-pink); }
.btn-pink:hover { background: var(--pink-400); color: var(--white); transform: translateY(-2px); }
.btn-outline-white { background: transparent; color: var(--white); border: 2px solid rgba(255,255,255,0.6); }
.btn-outline-white:hover { background: rgba(255,255,255,0.15); border-color: var(--white); color: var(--white); }
.btn-lg { padding: 16px 40px; font-size: 1.1rem; }

.header {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
  background: rgba(255,255,255,0.95); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-100); transition: var(--transition);
}
.header.scrolled { box-shadow: var(--shadow-sm); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.nav-logo { display: flex; align-items: center; gap: 10px; font-size: 1.4rem; font-weight: 700; color: var(--teal-500); }
.nav-logo img { height: 50px; width: auto; border-radius: 8px; }
.nav-menu { display: flex; align-items: center; gap: 2rem; }
.nav-menu a { color: var(--gray-600); font-size: 1rem; font-weight: 500; position: relative; padding: 4px 0; }
.nav-menu a::after { content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px; background: var(--teal-400); border-radius: 2px; transition: var(--transition); }
.nav-menu a:hover::after, .nav-menu a.active::after { width: 100%; }
.nav-menu a:hover, .nav-menu a.active { color: var(--teal-500); }
.nav-right { display: flex; align-items: center; gap: 1rem; }
.lang-switch { display: flex; align-items: center; gap: 6px; font-size: 0.9rem; color: var(--gray-500); cursor: pointer; }
.lang-switch span.active { color: var(--teal-500); font-weight: 600; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--gray-700); border-radius: 2px; transition: var(--transition); }
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

.hero {
  min-height: 100vh; display: flex; align-items: center; position: relative;
  padding-top: 70px; background: linear-gradient(160deg, var(--teal-50) 0%, var(--white) 50%, var(--pink-100) 100%);
  overflow: hidden;
}
.hero::before { content: ''; position: absolute; top: -100px; right: -100px; width: 500px; height: 500px; background: radial-gradient(circle, rgba(45,180,166,0.08), transparent 70%); border-radius: 50%; }
.hero::after { content: ''; position: absolute; bottom: -150px; left: -100px; width: 400px; height: 400px; background: radial-gradient(circle, rgba(244,143,177,0.08), transparent 70%); border-radius: 50%; }
.hero-content { position: relative; z-index: 1; max-width: 640px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 6px 18px; background: var(--white); border-radius: var(--radius-full); font-size: 0.9rem; color: var(--teal-500); font-weight: 600; box-shadow: var(--shadow-sm); margin-bottom: var(--space-md); }
.hero h1 { font-size: 3.2rem; font-weight: 800; line-height: 1.3; color: var(--gray-800); margin-bottom: var(--space-sm); }
.hero h1 .highlight { color: var(--teal-400); position: relative; }
.hero h1 .highlight::after { content: ''; position: absolute; bottom: 4px; left: 0; width: 100%; height: 8px; background: var(--pink-100); z-index: -1; border-radius: 4px; }
.hero-desc { font-size: 1.15rem; color: var(--gray-500); margin-bottom: var(--space-lg); }
.hero-actions { display: flex; gap: var(--space-sm); flex-wrap: wrap; }

.page-hero { padding: 140px 0 60px; background: linear-gradient(135deg, var(--teal-50), var(--white)); text-align: center; }
.page-hero h1 { font-size: 2.6rem; font-weight: 800; color: var(--gray-800); margin-bottom: var(--space-sm); }
.page-hero p { font-size: 1.1rem; color: var(--gray-500); max-width: 600px; margin: 0 auto; }
.breadcrumb { display: flex; justify-content: center; gap: 8px; margin-top: var(--space-md); font-size: 0.9rem; color: var(--gray-400); }
.breadcrumb a { color: var(--gray-400); }
.breadcrumb a:hover { color: var(--teal-500); }

.stats-bar { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); padding: var(--space-xl) 0; }
.stat-item { text-align: center; }
.stat-number { font-size: 3rem; font-weight: 800; color: var(--teal-400); line-height: 1.2; }
.stat-label { font-size: 1rem; color: var(--gray-500); margin-top: 4px; }

.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: var(--space-lg); }
.service-card { background: var(--white); border-radius: var(--radius-lg); padding: var(--space-lg); box-shadow: var(--shadow-sm); border: 1px solid var(--gray-100); transition: var(--transition); position: relative; overflow: hidden; }
.service-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px; background: var(--teal-400); transform: scaleX(0); transform-origin: left; transition: var(--transition); }
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--teal-100); }
.service-card:hover::before { transform: scaleX(1); }
.service-icon { width: 60px; height: 60px; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; font-size: 1.8rem; margin-bottom: var(--space-sm); background: var(--teal-50); }
.service-card h3 { font-size: 1.3rem; font-weight: 700; color: var(--gray-800); margin-bottom: var(--space-xs); }
.service-card p { color: var(--gray-500); font-size: 0.95rem; }

.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--space-lg); }
.feature-item { text-align: center; padding: var(--space-lg); border-radius: var(--radius-lg); background: var(--white); border: 1px solid var(--gray-100); transition: var(--transition); }
.feature-item:hover { box-shadow: var(--shadow-md); border-color: var(--teal-100); }
.feature-icon { width: 72px; height: 72px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 2rem; margin: 0 auto var(--space-sm); background: linear-gradient(135deg, var(--teal-50), var(--pink-100)); }
.feature-item h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: var(--space-xs); color: var(--gray-800); }
.feature-item p { color: var(--gray-500); font-size: 0.95rem; }

.cert-section { background: linear-gradient(135deg, var(--teal-500), var(--teal-700)); color: var(--white); border-radius: var(--radius-xl); padding: var(--space-2xl) var(--space-xl); position: relative; overflow: hidden; }
.cert-section::before { content: ''; position: absolute; top: -50px; right: -50px; width: 300px; height: 300px; background: rgba(255,255,255,0.05); border-radius: 50%; }
.cert-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-lg); text-align: center; margin-top: var(--space-xl); }
.cert-stat .number { font-size: 2.8rem; font-weight: 800; color: var(--white); }
.cert-stat .label { font-size: 0.95rem; opacity: 0.85; margin-top: 4px; }

.process-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--space-lg); counter-reset: step; }
.process-item { text-align: center; position: relative; padding: var(--space-lg) var(--space-sm); }
.process-step { width: 64px; height: 64px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; font-weight: 800; color: var(--teal-500); background: var(--teal-50); margin: 0 auto var(--space-sm); counter-increment: step; position: relative; z-index: 1; }
.process-step::before { content: counter(step); }
.process-item h4 { font-size: 1.1rem; font-weight: 700; color: var(--gray-800); margin-bottom: 6px; }
.process-item p { color: var(--gray-500); font-size: 0.9rem; }

.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--space-lg); }
.pricing-card { background: var(--white); border-radius: var(--radius-xl); padding: var(--space-xl) var(--space-lg); box-shadow: var(--shadow-sm); border: 2px solid var(--gray-100); transition: var(--transition); position: relative; }
.pricing-card:hover { box-shadow: var(--shadow-lg); border-color: var(--teal-200); }
.pricing-card.featured { border-color: var(--teal-400); transform: scale(1.03); }
.pricing-card.featured::before { content: '\70ED\95E8\63A8\8350'; position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--pink-300); color: var(--white); padding: 4px 16px; border-radius: var(--radius-full); font-size: 0.8rem; font-weight: 600; }
html[lang="en"] .pricing-card.featured::before { content: 'Popular'; }
.pricing-card h3 { font-size: 1.3rem; font-weight: 700; color: var(--gray-800); margin-bottom: var(--space-xs); }
.pricing-card .price { font-size: 2.5rem; font-weight: 800; color: var(--teal-400); margin: var(--space-sm) 0; }
.pricing-card .price .unit { font-size: 1rem; color: var(--gray-400); font-weight: 400; }
.pricing-features { margin: var(--space-md) 0; }
.pricing-features li { padding: 8px 0; color: var(--gray-600); display: flex; align-items: center; gap: 8px; font-size: 0.95rem; }
.pricing-features li::before { content: '\2714'; color: var(--teal-400); font-weight: 700; }
.pricing-features li.disabled { color: var(--gray-300); }
.pricing-features li.disabled::before { content: '\2716'; color: var(--gray-300); }

.companion-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--space-lg); }
.companion-card { background: var(--white); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--gray-100); transition: var(--transition); }
.companion-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.companion-avatar { width: 100%; height: 200px; background: linear-gradient(135deg, var(--teal-100), var(--pink-100)); display: flex; align-items: center; justify-content: center; font-size: 4rem; }
.companion-info { padding: var(--space-md); }
.companion-info h3 { font-size: 1.2rem; font-weight: 700; color: var(--gray-800); }
.companion-info .title { font-size: 0.85rem; color: var(--teal-500); font-weight: 600; margin-bottom: var(--space-xs); }
.companion-info .desc { color: var(--gray-500); font-size: 0.9rem; margin-bottom: var(--space-sm); }
.companion-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.companion-tags span { padding: 3px 12px; background: var(--teal-50); color: var(--teal-500); border-radius: var(--radius-full); font-size: 0.8rem; }

.testimonial-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: var(--space-lg); }
.testimonial-card { background: var(--white); border-radius: var(--radius-lg); padding: var(--space-lg); box-shadow: var(--shadow-sm); border: 1px solid var(--gray-100); position: relative; }
.testimonial-card::before { content: '\201C'; position: absolute; top: 10px; right: 20px; font-size: 4rem; color: var(--teal-100); font-family: Georgia, serif; line-height: 1; }
.testimonial-text { color: var(--gray-600); font-size: 0.95rem; margin-bottom: var(--space-md); position: relative; z-index: 1; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-author .avatar { width: 44px; height: 44px; border-radius: 50%; background: linear-gradient(135deg, var(--teal-200), var(--pink-300)); display: flex; align-items: center; justify-content: center; font-size: 1.2rem; color: var(--white); font-weight: 700; }
.testimonial-author .name { font-weight: 600; color: var(--gray-700); }
.testimonial-author .role { font-size: 0.85rem; color: var(--gray-400); }

.course-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: var(--space-lg); }
.course-card { background: var(--white); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--gray-100); transition: var(--transition); }
.course-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.course-header { padding: var(--space-md); background: linear-gradient(135deg, var(--teal-400), var(--teal-500)); color: var(--white); }
.course-header h3 { font-size: 1.2rem; font-weight: 700; }
.course-header .level { display: inline-block; margin-top: 6px; padding: 2px 12px; background: rgba(255,255,255,0.2); border-radius: var(--radius-full); font-size: 0.8rem; }
.course-body { padding: var(--space-md); }
.course-body .duration { color: var(--gray-400); font-size: 0.9rem; margin-bottom: var(--space-sm); }
.course-body ul { margin-bottom: var(--space-sm); }
.course-body ul li { padding: 4px 0; color: var(--gray-600); font-size: 0.9rem; padding-left: 20px; position: relative; }
.course-body ul li::before { content: '\2022'; position: absolute; left: 4px; color: var(--teal-400); font-weight: 700; }
.course-footer { padding: var(--space-sm) var(--space-md); border-top: 1px solid var(--gray-100); display: flex; justify-content: space-between; align-items: center; }
.course-footer .price { font-size: 1.3rem; font-weight: 700; color: var(--teal-400); }

.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: var(--space-xl); align-items: start; }
.contact-info-card { background: linear-gradient(135deg, var(--teal-500), var(--teal-700)); color: var(--white); border-radius: var(--radius-xl); padding: var(--space-xl) var(--space-lg); position: relative; overflow: hidden; }
.contact-info-card::before { content: ''; position: absolute; bottom: -60px; right: -60px; width: 200px; height: 200px; background: rgba(255,255,255,0.05); border-radius: 50%; }
.contact-info-card h3 { font-size: 1.5rem; font-weight: 700; margin-bottom: var(--space-md); position: relative; }
.contact-info-item { display: flex; align-items: flex-start; gap: 12px; margin-bottom: var(--space-md); position: relative; }
.contact-info-item .icon { width: 40px; height: 40px; border-radius: var(--radius-sm); background: rgba(255,255,255,0.15); display: flex; align-items: center; justify-content: center; font-size: 1.2rem; flex-shrink: 0; }
.contact-info-item .label { font-size: 0.85rem; opacity: 0.8; }
.contact-info-item .value { font-size: 1.05rem; font-weight: 600; }
.contact-form { background: var(--white); border-radius: var(--radius-xl); padding: var(--space-xl) var(--space-lg); box-shadow: var(--shadow-md); border: 1px solid var(--gray-100); }
.form-group { margin-bottom: var(--space-md); }
.form-group label { display: block; font-size: 0.9rem; font-weight: 600; color: var(--gray-700); margin-bottom: 6px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 12px 16px; border: 1px solid var(--gray-200); border-radius: var(--radius-sm); font-size: 1rem; font-family: var(--font-sans); color: var(--gray-800); background: var(--gray-50); transition: var(--transition); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--teal-400); background: var(--white); box-shadow: 0 0 0 3px rgba(45,180,166,0.1); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-md); }

.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { background: var(--white); border-radius: var(--radius-md); margin-bottom: var(--space-sm); border: 1px solid var(--gray-100); overflow: hidden; transition: var(--transition); }
.faq-item.open { box-shadow: var(--shadow-md); border-color: var(--teal-100); }
.faq-question { padding: var(--space-md); display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-weight: 600; color: var(--gray-800); font-size: 1.05rem; }
.faq-question .toggle { width: 28px; height: 28px; border-radius: 50%; background: var(--teal-50); display: flex; align-items: center; justify-content: center; color: var(--teal-500); font-size: 1.2rem; flex-shrink: 0; transition: var(--transition); }
.faq-item.open .toggle { transform: rotate(45deg); background: var(--teal-400); color: var(--white); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease, padding 0.3s ease; padding: 0 var(--space-md); color: var(--gray-500); font-size: 0.95rem; }
.faq-item.open .faq-answer { max-height: 300px; padding-bottom: var(--space-md); }

.cta-section { background: linear-gradient(135deg, var(--teal-400), var(--teal-600)); border-radius: var(--radius-xl); padding: var(--space-2xl) var(--space-xl); text-align: center; color: var(--white); position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; top: -80px; right: -80px; width: 300px; height: 300px; background: rgba(255,255,255,0.05); border-radius: 50%; }
.cta-section::after { content: ''; position: absolute; bottom: -100px; left: -50px; width: 250px; height: 250px; background: rgba(244,143,177,0.08); border-radius: 50%; }
.cta-section h2 { font-size: 2.2rem; font-weight: 800; margin-bottom: var(--space-sm); position: relative; }
.cta-section p { font-size: 1.1rem; opacity: 0.9; margin-bottom: var(--space-lg); position: relative; }
.cta-section .btn { position: relative; }

.footer { background: var(--gray-900); color: var(--gray-400); padding: var(--space-2xl) 0 var(--space-lg); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: var(--space-xl); margin-bottom: var(--space-xl); }
.footer-brand { display: flex; align-items: center; gap: 10px; font-size: 1.3rem; font-weight: 700; color: var(--white); margin-bottom: var(--space-sm); }
.footer-brand img { height: 48px; width: auto; border-radius: 8px; }
.footer-desc { font-size: 0.9rem; line-height: 1.8; margin-bottom: var(--space-md); }
.footer-social { display: flex; gap: 12px; }
.footer-social a { width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.08); display: flex; align-items: center; justify-content: center; font-size: 1.1rem; color: var(--gray-400); transition: var(--transition); }
.footer-social a:hover { background: var(--teal-400); color: var(--white); }
.footer-col h4 { color: var(--white); font-size: 1rem; font-weight: 600; margin-bottom: var(--space-sm); }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: var(--gray-400); font-size: 0.9rem; }
.footer-col ul li a:hover { color: var(--teal-300); }
.footer-contact-item { display: flex; align-items: flex-start; gap: 8px; margin-bottom: 10px; font-size: 0.9rem; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: var(--space-md); display: flex; justify-content: space-between; align-items: center; font-size: 0.85rem; }
.footer-bottom a { color: var(--gray-400); }
.footer-bottom a:hover { color: var(--teal-300); }

@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
.fade-in-up { animation: fadeInUp 0.6s ease forwards; }
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .cert-stats { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav-menu { position: fixed; top: 70px; left: 0; width: 100%; background: var(--white); flex-direction: column; padding: var(--space-md); gap: var(--space-sm); box-shadow: var(--shadow-md); transform: translateY(-200%); transition: var(--transition); }
  .nav-menu.open { transform: translateY(0); }
  .nav-toggle { display: flex; }
  .nav-right .btn { display: none; }
  .hero h1 { font-size: 2.2rem; }
  .hero-desc { font-size: 1rem; }
  .section-title h2 { font-size: 1.7rem; }
  .stats-bar { grid-template-columns: 1fr; gap: var(--space-md); }
  .cert-stats { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: var(--space-xs); text-align: center; }
  .pricing-card.featured { transform: none; }
  .page-hero h1 { font-size: 2rem; }
}
@media (max-width: 480px) {
  .hero h1 { font-size: 1.8rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .section-title h2 { font-size: 1.5rem; }
  .cert-stat .number { font-size: 2rem; }
  .stat-number { font-size: 2.2rem; }
}