/* ===== 基础重置与变量 ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary: #00d4ff;
  --primary-dark: #0099cc;
  --secondary: #7b5ea7;
  --accent: #4facfe;
  --bg-dark: #050d1a;
  --bg-card: #0d1b2e;
  --bg-light: #f7f9fc;
  --text-primary: #1a2332;
  --text-secondary: #5a6a7e;
  --text-light: rgba(255,255,255,0.85);
  --text-muted: rgba(255,255,255,0.5);
  --border: rgba(255,255,255,0.08);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 32px rgba(0,0,0,0.12);
  --shadow-lg: 0 24px 64px rgba(0,0,0,0.18);
  --transition: 0.3s ease;
  --font: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', sans-serif;
}

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

body {
  font-family: var(--font);
  color: var(--text-primary);
  background: #fff;
  overflow-x: hidden;
  line-height: 1.6;
}

/* ===== 滚动条美化 ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

/* ===== 导航栏 ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  transition: background var(--transition), backdrop-filter var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
  background: rgba(5, 13, 26, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(255,255,255,0.06);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  cursor: pointer;
}

.logo-icon {
  flex-shrink: 0;
  filter: drop-shadow(0 0 8px rgba(0,212,255,0.4));
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-main {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.05em;
  line-height: 1.2;
}

.logo-sub {
  font-size: 10px;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.15em;
  line-height: 1;
}

.nav-links {
  display: flex;
  gap: 4px;
}

.nav-link {
  padding: 8px 16px;
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  border-radius: 8px;
  transition: all var(--transition);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 1px;
  transition: width var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: #fff;
}

.nav-link:hover::after, .nav-link.active::after {
  width: 20px;
}

.menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 1px;
  transition: all var(--transition);
}

.mobile-menu {
  display: none;
  flex-direction: column;
  background: rgba(5, 13, 26, 0.96);
  backdrop-filter: blur(20px);
  padding: 16px 24px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  padding: 12px 0;
  font-size: 15px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  transition: color var(--transition);
}

.mobile-menu a:hover {
  color: var(--primary);
}

/* ===== Hero 首屏 ===== */
.hero {
  position: relative;
  min-height: 100vh;
  background: var(--bg-dark);
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,212,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
}

.hero-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 120px 32px 80px;
  width: 100%;
  flex: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,212,255,0.1);
  border: 1px solid rgba(0,212,255,0.2);
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 28px;
  color: var(--primary);
  font-size: 13px;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-size: clamp(48px, 8vw, 88px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.title-line {
  display: block;
  color: #fff;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 560px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 60px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  border: none;
  padding: 14px 28px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 8px 24px rgba(0,212,255,0.3);
  font-family: var(--font);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0,212,255,0.45);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  background: transparent;
  color: rgba(255,255,255,0.85);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 14px 28px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.4);
  transform: translateY(-2px);
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-num {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  line-height: 1;
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.1);
}

.hero-visual {
  position: absolute;
  right: 5%;
  top: 50%;
  transform: translateY(-50%);
  width: 400px;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.visual-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid;
  animation: rotate 20s linear infinite;
}

.ring-1 {
  width: 300px;
  height: 300px;
  border-color: rgba(0,212,255,0.15);
  animation-duration: 25s;
}

.ring-2 {
  width: 220px;
  height: 220px;
  border-color: rgba(123,94,167,0.2);
  animation-direction: reverse;
  animation-duration: 18s;
}

.ring-3 {
  width: 380px;
  height: 380px;
  border-color: rgba(0,212,255,0.06);
  animation-duration: 35s;
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.visual-center {
  position: relative;
  z-index: 2;
  filter: drop-shadow(0 0 30px rgba(0,212,255,0.4));
}

.floating-card {
  position: absolute;
  background: rgba(13, 27, 46, 0.85);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0,212,255,0.15);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,0.85);
  white-space: nowrap;
  animation: float 4s ease-in-out infinite;
}

.card-1 { top: 60px; right: 20px; animation-delay: 0s; }
.card-2 { bottom: 80px; right: 30px; animation-delay: 1.5s; }
.card-3 { bottom: 150px; left: 10px; animation-delay: 0.8s; }

.fc-icon { font-size: 18px; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 12px;
  animation: fadeInUp 2s ease 1s both;
}

.scroll-dot {
  width: 4px;
  height: 28px;
  background: linear-gradient(to bottom, var(--primary), transparent);
  border-radius: 2px;
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { transform: scaleY(1); opacity: 0.6; }
  50% { transform: scaleY(0.6); opacity: 1; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateX(-50%) translateY(20px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ===== 通用 Section 样式 ===== */
.section {
  padding: 96px 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--primary);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
}

.section-header.light .section-title,
.section-header.light .section-desc {
  color: rgba(255,255,255,0.9);
}

.section-header.light .section-desc {
  color: var(--text-muted);
}

/* ===== 关于我们 ===== */
.about-section {
  background: var(--bg-light);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.about-intro h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 20px;
  position: relative;
  padding-left: 16px;
}

.about-intro h3::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  background: linear-gradient(to bottom, var(--primary), var(--secondary));
  border-radius: 2px;
}

.about-intro p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 16px;
}

.about-intro p strong {
  color: var(--text-primary);
  font-weight: 600;
}

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.tag {
  background: #fff;
  border: 1px solid #e8ecf0;
  color: var(--text-secondary);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 500;
  transition: all var(--transition);
  cursor: default;
}

.tag:hover {
  border-color: var(--primary);
  color: var(--primary-dark);
  background: rgba(0,212,255,0.04);
}

.about-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.info-card {
  background: #fff;
  border: 1px solid #edf0f4;
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all var(--transition);
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.info-card:hover {
  border-color: var(--primary);
  box-shadow: 0 8px 24px rgba(0,212,255,0.1);
  transform: translateY(-2px);
}

.info-icon {
  font-size: 28px;
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, rgba(0,212,255,0.08), rgba(123,94,167,0.08));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.info-detail {
  display: flex;
  flex-direction: column;
}

.info-label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.info-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

/* ===== 业务范围 ===== */
.services-section {
  background: #fff;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--bg-light);
  border: 1px solid #edf0f4;
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.service-card:hover {
  border-color: rgba(0,212,255,0.2);
  box-shadow: 0 16px 48px rgba(0,212,255,0.08);
  transform: translateY(-4px);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card.featured {
  background: linear-gradient(135deg, #f0fafe, #f5f0ff);
  border-color: rgba(0,212,255,0.15);
}

.service-icon-wrap {
  margin-bottom: 20px;
}

.service-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(0,212,255,0.12), rgba(123,94,167,0.12));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-dark);
}

.service-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.service-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

.service-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.service-list li {
  font-size: 13px;
  color: var(--text-secondary);
  padding-left: 18px;
  position: relative;
}

.service-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
}

/* ===== 核心优势 ===== */
.advantages-section {
  background: linear-gradient(135deg, var(--bg-dark) 0%, #0a1628 100%);
  position: relative;
  overflow: hidden;
}

.advantages-section::before {
  content: '';
  position: absolute;
  top: -200px;
  left: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0,212,255,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.advantages-section::after {
  content: '';
  position: absolute;
  bottom: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(123,94,167,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
  z-index: 1;
}

.adv-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.adv-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,212,255,0.04), rgba(123,94,167,0.04));
  opacity: 0;
  transition: opacity var(--transition);
}

.adv-card:hover {
  border-color: rgba(0,212,255,0.2);
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.adv-card:hover::after {
  opacity: 1;
}

.adv-num {
  font-size: 48px;
  font-weight: 800;
  color: rgba(0,212,255,0.08);
  line-height: 1;
  margin-bottom: 16px;
  font-variant-numeric: tabular-nums;
}

.adv-icon {
  font-size: 36px;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.adv-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.adv-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  position: relative;
  z-index: 1;
}

/* ===== 联系我们 ===== */
.contact-section {
  background: var(--bg-light);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: #fff;
  border: 1px solid #edf0f4;
  border-radius: var(--radius);
  transition: all var(--transition);
}

.contact-item:hover {
  border-color: rgba(0,212,255,0.2);
  box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}

.contact-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, rgba(0,212,255,0.1), rgba(123,94,167,0.1));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-dark);
  flex-shrink: 0;
}

.contact-detail {
  display: flex;
  flex-direction: column;
}

.contact-label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 4px;
  font-weight: 500;
  letter-spacing: 0.05em;
}

.contact-value {
  font-size: 14px;
  color: var(--text-primary);
  font-weight: 500;
  line-height: 1.6;
}

.wechat-link {
  display: inline-flex;
  align-items: center;
  color: #07c160;
  text-decoration: none;
  font-weight: 600;
  transition: opacity var(--transition);
}

.wechat-link:hover {
  opacity: 0.75;
}

.contact-form-wrap {
  background: #fff;
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow);
  border: 1px solid #edf0f4;
}

.contact-form h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 28px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
  letter-spacing: 0.03em;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid #e8ecf0;
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--text-primary);
  font-family: var(--font);
  background: var(--bg-light);
  transition: all var(--transition);
  outline: none;
  appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(0,212,255,0.08);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.btn-submit {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 8px 24px rgba(0,212,255,0.25);
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0,212,255,0.4);
}

.btn-submit:active {
  transform: translateY(0);
}

/* ===== Footer ===== */
.footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.6);
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 64px;
  padding: 64px 0 48px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.footer-slogan {
  font-size: 16px;
  color: rgba(255,255,255,0.5);
  margin: 16px 0 8px;
  font-weight: 300;
  letter-spacing: 0.05em;
}

.footer-desc {
  font-size: 13px;
  color: rgba(255,255,255,0.35);
  line-height: 1.8;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: rgba(255,255,255,0.8);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.footer-col a, .footer-col p {
  display: block;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
  text-decoration: none;
  margin-bottom: 10px;
  transition: color var(--transition);
  line-height: 1.5;
}

.footer-col a:hover {
  color: var(--primary);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  font-size: 12px;
  color: rgba(255,255,255,0.25);
}

/* ===== 回到顶部 ===== */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(0,212,255,0.35);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
  z-index: 999;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0,212,255,0.5);
}

/* ===== 滚动动画 ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 响应式布局 ===== */
@media (max-width: 1024px) {
  .hero-visual {
    display: none;
  }
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .menu-btn {
    display: flex;
  }
  .hero-content {
    padding: 100px 24px 64px;
  }
  .hero-desc br { display: none; }
  .hero-stats {
    gap: 20px;
  }
  .about-content,
  .contact-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .about-cards {
    grid-template-columns: 1fr 1fr;
  }
  .services-grid {
    grid-template-columns: 1fr;
  }
  .advantages-grid {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .footer-links {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
  .container {
    padding: 0 20px;
  }
  .section {
    padding: 64px 0;
  }
  .contact-form-wrap {
    padding: 28px 20px;
  }
}

@media (max-width: 480px) {
  .about-cards {
    grid-template-columns: 1fr;
  }
  .footer-links {
    grid-template-columns: 1fr;
  }
}