/* ========================================
   深圳市元竞耀科技有限公司 - 企业官网样式
   ======================================== */

/* ---------- CSS Variables ---------- */
:root {
  --primary: #1a56db;
  --primary-dark: #1340a8;
  --primary-light: #e8edfb;
  --secondary: #0f172a;
  --accent: #06b6d4;
  --accent-light: #cff5fc;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-light: #94a3b8;
  --bg-white: #ffffff;
  --bg-light: #f8fafc;
  --bg-gray: #f1f5f9;
  --border: #e2e8f0;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --radius: 8px;
  --radius-lg: 12px;
  --transition: all 0.3s ease;
}

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  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-primary);
  background-color: var(--bg-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul {
  list-style: none;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header .badge {
  display: inline-block;
  padding: 6px 16px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 20px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-header p {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ---------- Navigation ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.navbar .logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  color: var(--secondary);
}

.navbar .logo .logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 18px;
}

.navbar .nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.navbar .nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 4px 0;
}

.navbar .nav-links a:hover,
.navbar .nav-links a.active {
  color: var(--primary);
}

.navbar .nav-links a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: var(--transition);
  border-radius: 1px;
}

.navbar .nav-links a:hover::after,
.navbar .nav-links a.active::after {
  width: 100%;
}

.navbar .nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.navbar .btn-contact {
  padding: 10px 24px;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.navbar .btn-contact:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* Mobile Menu */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ---------- Hero Section ---------- */
.hero {
  padding: 140px 0 80px;
  background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-white) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(
    circle,
    rgba(26, 86, 219, 0.06) 0%,
    transparent 70%
  );
  border-radius: 50%;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(
    circle,
    rgba(6, 182, 212, 0.05) 0%,
    transparent 70%
  );
  border-radius: 50%;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--secondary);
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}

.hero-content h1 .gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content .subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 520px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: var(--bg-white);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.hero-stats {
  display: flex;
  gap: 48px;
}

.hero-stats .stat {
  text-align: left;
}

.hero-stats .stat .number {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 4px;
}

.hero-stats .stat .label {
  font-size: 14px;
  color: var(--text-secondary);
}

.hero-visual {
  position: relative;
}

.hero-visual .visual-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-xl);
  position: relative;
  overflow: hidden;
}

.hero-visual .visual-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}

.visual-card .card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.visual-card .card-dots {
  display: flex;
  gap: 6px;
}

.visual-card .card-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.visual-card .card-dots span:nth-child(1) {
  background: #ef4444;
}
.visual-card .card-dots span:nth-child(2) {
  background: #f59e0b;
}
.visual-card .card-dots span:nth-child(3) {
  background: #22c55e;
}

.visual-card .card-title {
  font-size: 13px;
  color: var(--text-light);
  margin-left: 8px;
}

.visual-card .code-block {
  background: var(--bg-gray);
  border-radius: var(--radius);
  padding: 20px;
  font-family: "SF Mono", "Fira Code", "Cascadia Code", monospace;
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-secondary);
}

.visual-card .code-block .keyword {
  color: var(--primary);
}

.visual-card .code-block .string {
  color: #059669;
}

.visual-card .code-block .comment {
  color: var(--text-light);
}

.visual-card .code-block .function {
  color: var(--accent);
}

/* ---------- About Section ---------- */
.about {
  background: var(--bg-white);
}

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

.about-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.about-image .image-placeholder {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent-light) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.about-image .image-placeholder .icon {
  width: 80px;
  height: 80px;
  background: var(--bg-white);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
}

.about-image .image-placeholder .icon svg {
  width: 40px;
  height: 40px;
  color: var(--primary);
}

.about-image .image-placeholder .text {
  font-size: 18px;
  font-weight: 600;
  color: var(--primary);
}

.about-content h3 {
  font-size: 28px;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 20px;
}

.about-content .about-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.about-feature {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.about-feature .feature-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  background: var(--primary-light);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-feature .feature-icon svg {
  width: 20px;
  height: 20px;
  color: var(--primary);
}

.about-feature .feature-text h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.about-feature .feature-text p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ---------- Services Section ---------- */
.services {
  background: var(--bg-light);
}

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

.service-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.service-card .card-icon {
  width: 56px;
  height: 56px;
  background: var(--primary-light);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  transition: var(--transition);
}

.service-card:hover .card-icon {
  background: var(--primary);
}

.service-card .card-icon svg {
  width: 28px;
  height: 28px;
  color: var(--primary);
  transition: var(--transition);
}

.service-card:hover .card-icon svg {
  color: #fff;
}

.service-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 12px;
}

.service-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.service-card .tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.service-card .tech-tag {
  padding: 4px 12px;
  background: var(--bg-gray);
  border-radius: 20px;
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ---------- Products Section ---------- */
.products {
  background: var(--bg-white);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.product-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.product-card .product-preview {
  height: 200px;
  background: linear-gradient(135deg, var(--primary-light), var(--bg-gray));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.product-card .product-preview .preview-icon {
  width: 64px;
  height: 64px;
  background: var(--bg-white);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
}

.product-card .product-preview .preview-icon svg {
  width: 32px;
  height: 32px;
  color: var(--primary);
}

.product-card .product-info {
  padding: 28px;
}

.product-card .product-info h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 8px;
}

.product-card .product-info p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.product-card .product-features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.product-card .product-feature {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-secondary);
}

.product-card .product-feature svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
}

/* ---------- Advantages Section ---------- */
.advantages {
  background: var(--secondary);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.advantages::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(
    circle,
    rgba(26, 86, 219, 0.15) 0%,
    transparent 70%
  );
  border-radius: 50%;
}

.advantages .section-header .badge {
  background: rgba(255, 255, 255, 0.1);
  color: var(--accent);
}

.advantages .section-header h2 {
  color: #fff;
}

.advantages .section-header p {
  color: rgba(255, 255, 255, 0.7);
}

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

.advantage-card {
  text-align: center;
  padding: 36px 24px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.advantage-card:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-4px);
}

.advantage-card .adv-number {
  font-size: 48px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.advantage-card h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.advantage-card p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
}

/* ---------- Team Section ---------- */
.team {
  background: var(--bg-light);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.team-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  transition: var(--transition);
}

.team-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.team-card .avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  margin: 0 auto 16px;
  overflow: hidden;
  border: 3px solid var(--primary-light);
  box-shadow: 0 4px 12px rgba(26, 86, 219, 0.15);
}

.team-card .avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.team-card h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--secondary);
  margin-bottom: 4px;
}

.team-card .role {
  font-size: 13px;
  color: var(--primary);
  font-weight: 500;
  margin-bottom: 8px;
}

.team-card .desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ---------- CTA Section ---------- */
.cta {
  background: linear-gradient(135deg, var(--primary), #4f46e5);
  color: #fff;
  text-align: center;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.1) 0%,
    transparent 70%
  );
  border-radius: 50%;
}

.cta h2 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.cta p {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 36px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 1;
}

.cta .btn-white {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 40px;
  background: #fff;
  color: var(--primary);
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  z-index: 1;
}

.cta .btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

/* ---------- Contact Section ---------- */
.contact {
  background: var(--bg-white);
}

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

.contact-info h3 {
  font-size: 28px;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 16px;
}

.contact-info > p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 36px;
}

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

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-item .icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background: var(--primary-light);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-item .icon svg {
  width: 22px;
  height: 22px;
  color: var(--primary);
}

.contact-item h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.contact-item p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Contact Form */
.contact-form {
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  padding: 40px;
  border: 1px solid var(--border);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 15px;
  color: var(--text-primary);
  background: var(--bg-white);
  transition: var(--transition);
  font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-submit {
  width: 100%;
  padding: 14px 32px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.form-submit:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* ---------- Footer ---------- */
.footer {
  background: var(--secondary);
  color: rgba(255, 255, 255, 0.8);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-brand .logo .logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 16px;
}

.footer-brand .logo span {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 20px;
  max-width: 320px;
}

.footer-brand .social-links {
  display: flex;
  gap: 12px;
}

.footer-brand .social-links a {
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.footer-brand .social-links a:hover {
  background: var(--primary);
}

.footer-brand .social-links a svg {
  width: 18px;
  height: 18px;
  color: #fff;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
}

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul li a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: #fff;
}

.footer-bottom {
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom .company-info {
  display: flex;
  gap: 24px;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom a:hover {
  color: rgba(255, 255, 255, 0.8);
}

/* ---------- Scroll to Top ---------- */
.scroll-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  z-index: 999;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
}

.scroll-top svg {
  width: 20px;
  height: 20px;
}

/* ---------- Animations ---------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-content h1 {
    font-size: 40px;
  }

  .hero-visual {
    max-width: 500px;
  }

  .about .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }

  .section-header h2 {
    font-size: 28px;
  }

  .section-header p {
    font-size: 16px;
  }

  .navbar .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg-white);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
  }

  .navbar .nav-links.active {
    display: flex;
  }

  .navbar .nav-actions .btn-contact {
    display: none;
  }

  .mobile-toggle {
    display: flex;
  }

  .hero {
    padding: 120px 0 60px;
  }

  .hero-content h1 {
    font-size: 32px;
  }

  .hero-content .subtitle {
    font-size: 16px;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .hero-stats {
    gap: 32px;
  }

  .hero-stats .stat .number {
    font-size: 28px;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .products-grid {
    grid-template-columns: 1fr;
  }

  .advantages-grid {
    grid-template-columns: 1fr;
  }

  .team-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .footer-bottom .company-info {
    flex-wrap: wrap;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 28px;
  }

  .hero-stats {
    flex-direction: column;
    gap: 16px;
  }

  .about-features {
    grid-template-columns: 1fr;
  }

  .container {
    padding: 0 16px;
  }
}

/* ---------- Enhanced Animations ---------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-30px); }
  to { opacity: 1; transform: translateX(0); }
}

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

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* Hero content entrance */
.hero-content {
  animation: fadeInUp 0.8s ease forwards;
}

.hero-content h1 {
  animation: fadeInUp 0.8s ease 0.1s both;
}

.hero-content .subtitle {
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-buttons {
  animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-stats {
  animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-visual {
  animation: fadeInRight 1s ease 0.3s both;
}

/* Section headers */
.section-header {
  animation: fadeInUp 0.6s ease both;
}

/* Cards with staggered animation */
.service-card,
.product-card,
.team-card,
.advantage-card,
.culture-card,
.cert-card {
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.3s ease;
}

/* Gradient text animation */
.gradient-text {
  background-size: 200% auto;
  animation: gradientShift 4s ease infinite;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% center; }
  50% { background-position: 100% center; }
}

/* Visual card glow effect */
.visual-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  animation: cardShimmer 6s ease-in-out infinite;
}

@keyframes cardShimmer {
  0%, 100% { left: -100%; }
  50% { left: 150%; }
}

/* Form focus enhanced */
.form-group.focused label {
  color: var(--primary);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(26, 86, 219, 0.1);
}

/* Button hover shine */
.btn-primary::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s ease;
}

.btn-primary {
  position: relative;
  overflow: hidden;
}

.btn-primary:hover::before {
  left: 100%;
}

/* Smooth section transitions */
.section {
  will-change: transform;
}

/* Selection color */
::selection {
  background: rgba(26, 86, 219, 0.15);
  color: var(--primary);
}

/* Print styles */
@media print {
  .navbar, .scroll-top, .cta, .mobile-toggle { display: none !important; }
  .hero { padding-top: 0; }
  .section { padding: 40px 0; }
  body { font-size: 12pt; color: #000; }
}