/* ===== CSS Reset & Variables ===== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #3b82f6;
  --primary-50: #eff6ff;
  --secondary: #10b981;
  --accent: #f59e0b;
  --dark: #1e293b;
  --gray-900: #0f172a;
  --gray-800: #1e293b;
  --gray-700: #334155;
  --gray-600: #475569;
  --gray-500: #64748b;
  --gray-400: #94a3b8;
  --gray-300: #cbd5e1;
  --gray-200: #e2e8f0;
  --gray-100: #f1f5f9;
  --gray-50: #f8fafc;
  --white: #ffffff;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  --radius-sm: 0.25rem;
  --radius: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --transition: all 0.3s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--gray-700);
  background-color: var(--white);
  -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;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  color: var(--dark);
  font-weight: 700;
  line-height: 1.2;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  text-align: center;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--gray-500);
  text-align: center;
  margin-bottom: 4rem;
}

.section-header {
  margin-bottom: 4rem;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px -4px rgba(37, 99, 235, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: var(--white);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1rem;
}

.btn-block {
  width: 100%;
}

.btn-service {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: var(--white);
  border: none;
  padding: 0.875rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  margin-top: auto;
}

.btn-service:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px -4px rgba(37, 99, 235, 0.4);
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.5);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 5rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-icon {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 12px -2px rgba(37, 99, 235, 0.3);
  flex-shrink: 0;
}

.logo-text {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--dark);
}

.nav {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--gray-600);
  padding: 0.5rem 0;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* 语言切换 */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  background: var(--gray-100);
  border-radius: var(--radius);
  padding: 0.25rem;
}

.lang-btn {
  padding: 0.375rem 0.75rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--gray-600);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.lang-btn:hover {
  color: var(--primary);
}

.lang-btn.active {
  background: var(--white);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-menu-btn span {
  display: block;
  width: 1.5rem;
  height: 2px;
  background: var(--dark);
  transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
  position: relative;
  padding: 12rem 0 8rem;
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

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

.hero-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 30%, #bfdbfe 60%, #93c5fd 100%);
}

.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-particles span {
  position: absolute;
  width: 8px;
  height: 8px;
  background: rgba(37, 99, 235, 0.15);
  border-radius: 50%;
  animation: float 15s infinite ease-in-out;
}

.hero-particles span:nth-child(1) { left: 10%; top: 20%; animation-delay: 0s; }
.hero-particles span:nth-child(2) { left: 20%; top: 60%; animation-delay: 2s; }
.hero-particles span:nth-child(3) { left: 60%; top: 30%; animation-delay: 4s; }
.hero-particles span:nth-child(4) { left: 80%; top: 70%; animation-delay: 6s; }
.hero-particles span:nth-child(5) { left: 40%; top: 80%; animation-delay: 8s; }

@keyframes float {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
    opacity: 0.5;
  }
  50% {
    transform: translateY(-30px) rotate(180deg);
    opacity: 1;
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.hero-text {
  max-width: 560px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 2rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: 1.5rem;
  backdrop-filter: blur(8px);
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--secondary);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(1.2);
  }
}

.hero-title {
  font-size: 3.75rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  color: var(--dark);
}

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

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--gray-600);
  margin-bottom: 2.5rem;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 1rem;
}

/* Hero Visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 400px;
}

.hero-illustration {
  position: relative;
  z-index: 2;
  max-width: 500px;
  width: 100%;
  animation: float 6s ease-in-out infinite;
}

.globe-svg {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 20px 40px rgba(37, 99, 235, 0.3));
}

.phone-icon {
  position: absolute;
  width: 70px;
  animation: floatPhone 4s ease-in-out infinite;
}

.phone-icon svg {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.3));
}

/* 手机图标位置 - 左下角 */
.phone-left {
  bottom: -10px;
  left: -20px;
  animation-delay: 0.5s;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-15px);
  }
}

@keyframes floatPhone {
  0%, 100% {
    transform: translateY(0) rotate(-5deg);
  }
  50% {
    transform: translateY(-10px) rotate(-5deg);
  }
}

/* Floating Cards */
.floating-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1.25rem;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--dark);
  animation: floatCard 3s ease-in-out infinite;
}

.floating-card svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--primary);
}

.card-1 {
  top: 20%;
  left: -10%;
  animation-delay: 0s;
}

.card-2 {
  bottom: 25%;
  right: -5%;
  animation-delay: 1.5s;
}

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

/* ===== Features Section ===== */
.features {
  padding: 7rem 0;
  background: var(--white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-card {
  position: relative;
  padding: 2.5rem;
  background: var(--gray-50);
  border-radius: var(--radius-xl);
  transition: var(--transition);
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}

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

.feature-card:hover {
  background: var(--white);
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
}

.feature-icon {
  width: 3.5rem;
  height: 3.5rem;
  background: linear-gradient(135deg, var(--primary-50) 0%, #dbeafe 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.feature-icon svg {
  width: 1.75rem;
  height: 1.75rem;
  color: var(--primary);
}

.feature-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.feature-desc {
  color: var(--gray-600);
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* ===== Services Section ===== */
.services {
  padding: 7rem 0;
  background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.service-card {
  position: relative;
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  min-height: 480px;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border: 2px solid transparent;
  border-radius: var(--radius-xl);
  transition: var(--transition);
  pointer-events: none;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.service-card:hover::before {
  border-color: var(--primary);
}

.service-badge {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  padding: 0.375rem 0.875rem;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 2rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.service-otp .service-badge {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  color: #d97706;
}

.service-notification .service-badge {
  background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
  color: var(--primary);
}

.service-marketing .service-badge {
  background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
  color: #16a34a;
}

.service-icon {
  width: 4.5rem;
  height: 4.5rem;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.75rem;
}

.service-otp .service-icon {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
}

.service-notification .service-icon {
  background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
}

.service-marketing .service-icon {
  background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
}

.service-icon svg {
  width: 2.25rem;
  height: 2.25rem;
}

.service-otp .service-icon svg {
  color: #d97706;
}

.service-notification .service-icon svg {
  color: var(--primary);
}

.service-marketing .service-icon svg {
  color: #16a34a;
}

.service-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.service-desc {
  color: var(--gray-600);
  margin-bottom: 1.5rem;
  line-height: 1.8;
  font-size: 0.9375rem;
}

.service-features {
  flex-grow: 1;
  margin-bottom: 1.5rem;
}

.service-features li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--gray-600);
  font-size: 0.9375rem;
}

.service-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6rem;
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
}

/* ===== Stats Section ===== */
.stats {
  padding: 5rem 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 50%, var(--primary) 100%);
  position: relative;
  overflow: hidden;
}

.stats::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 3rem;
  text-align: center;
  position: relative;
  z-index: 1;
}

.stats-item {
  color: var(--white);
}

.stats-number {
  display: block;
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 0.75rem;
}

.stats-label {
  display: block;
  font-size: 1rem;
  opacity: 0.9;
}

/* ===== Partners Section ===== */
.partners {
  padding: 4rem 0;
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
}

.partners-title {
  text-align: center;
  color: var(--gray-500);
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 2.5rem;
}

.partners-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 4rem;
  flex-wrap: wrap;
}

.partner-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  background: var(--gray-50);
  border-radius: var(--radius);
  transition: var(--transition);
}

.partner-logo:hover {
  background: var(--gray-100);
  transform: translateY(-2px);
}

.partner-logo span {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-600);
}

/* ===== About Section ===== */
.about {
  padding: 7rem 0;
  background: var(--gray-50);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.about-text p {
  margin-bottom: 1.5rem;
  color: var(--gray-600);
  line-height: 1.8;
}

.about-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.about-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.75rem;
  padding: 1.5rem;
  background: var(--white);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.about-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.about-icon {
  width: 3rem;
  height: 3rem;
  background: linear-gradient(135deg, var(--primary-50) 0%, #dbeafe 100%);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-icon svg {
  width: 1.5rem;
  height: 1.5rem;
  color: var(--primary);
}

.about-item h4 {
  font-size: 1rem;
  font-weight: 700;
}

.about-item p {
  font-size: 0.875rem;
  color: var(--gray-500);
  margin: 0;
}

.about-visual {
  display: flex;
  justify-content: center;
}

.about-illustration {
  max-width: 450px;
  width: 100%;
  animation: float 6s ease-in-out infinite;
  animation-delay: -3s;
}

.network-svg {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 20px 40px rgba(37, 99, 235, 0.2));
}

/* ===== Contact Section ===== */
.contact {
  padding: 7rem 0;
  background: var(--white);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-desc {
  color: var(--gray-600);
  margin-bottom: 2.5rem;
  line-height: 1.8;
  font-size: 1.0625rem;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.contact-icon {
  width: 3.5rem;
  height: 3.5rem;
  background: linear-gradient(135deg, var(--primary-50) 0%, #dbeafe 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-icon svg {
  width: 1.5rem;
  height: 1.5rem;
  color: var(--primary);
}

.contact-item h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.contact-item p {
  color: var(--gray-600);
  font-size: 0.9375rem;
}

/* ===== QR Code Section ===== */
.qrcode-section {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.qrcode-card {
  background: var(--gray-50);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  text-align: center;
  transition: var(--transition);
  border: 1px solid var(--gray-200);
}

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

.qrcode-wrapper {
  width: 180px;
  height: 180px;
  margin: 0 auto 1.5rem;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 0;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.qrcode-img-wrapper {
  position: relative;
}

.qrcode-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.qrcode-info {
  text-align: center;
}

.qrcode-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 0.5rem;
}

.qrcode-desc {
  color: var(--gray-500);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* ===== Footer ===== */
.footer {
  background: var(--gray-900);
  color: var(--gray-300);
  padding: 5rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-brand .logo {
  margin-bottom: 1.5rem;
}

.footer-brand .logo-icon {
  background: var(--primary);
}

.footer-brand .logo-text {
  color: var(--white);
}

.footer-desc {
  color: var(--gray-400);
  font-size: 0.9375rem;
  margin-bottom: 2rem;
  max-width: 320px;
  line-height: 1.7;
}

.social-links {
  display: flex;
  gap: 0.75rem;
}

.social-link {
  width: 2.75rem;
  height: 2.75rem;
  background: var(--gray-800);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.social-link:hover {
  background: var(--primary);
  transform: translateY(-2px);
}

.social-link svg {
  width: 1.25rem;
  height: 1.25rem;
}

.footer-links h4 {
  color: var(--white);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.footer-links a {
  color: var(--gray-400);
  font-size: 0.9375rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--white);
  padding-left: 4px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid var(--gray-800);
  font-size: 0.875rem;
}

.footer-legal {
  display: flex;
  gap: 2rem;
}

.footer-legal a {
  color: var(--gray-400);
}

.footer-legal a:hover {
  color: var(--white);
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2.5rem;
  }

  .hero-text {
    max-width: 100%;
  }

  .hero-badge {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-visual {
    order: -1;
    min-height: 320px;
  }

  .floating-card {
    display: none;
  }

  .features {
    padding: 5rem 0;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .services {
    padding: 5rem 0;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .stats {
    padding: 4rem 0;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
  }

  .about {
    padding: 5rem 0;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .about-visual {
    order: -1;
    max-width: 400px;
    margin: 0 auto;
  }

  .contact {
    padding: 5rem 0;
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .qrcode-section {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  .header-content {
    padding: 0 1rem;
  }

  .nav,
  .header-actions {
    display: none;
  }

  .lang-switch {
    display: none;
  }

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

  .hero {
    padding: 7rem 0 4rem;
    min-height: auto;
  }

  .hero-visual {
    display: none;
  }

  .hero-title {
    font-size: 2.25rem;
    line-height: 1.15;
  }

  .hero-subtitle {
    font-size: 1rem;
    margin-bottom: 2rem;
  }

  .hero-actions {
    flex-direction: column;
    gap: 0.75rem;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .hero-visual {
    min-height: 280px;
  }

  .section-title {
    font-size: 1.875rem;
  }

  .section-subtitle {
    font-size: 1rem;
    margin-bottom: 3rem;
  }

  .features {
    padding: 5rem 0;
  }

  .features-grid,
  .services-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .service-card {
    min-height: auto;
    padding: 2rem;
  }

  .stats {
    padding: 4rem 0;
  }

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

  .stats-number {
    font-size: 2.25rem;
  }

  .partners {
    padding: 4rem 0;
  }

  .partners-logos {
    gap: 1.5rem;
  }

  .partner-logo {
    padding: 0.75rem 1.5rem;
  }

  .partner-logo span {
    font-size: 1rem;
  }

  .about {
    padding: 5rem 0;
  }

  .about-content {
    gap: 2.5rem;
  }

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

  .about-item {
    flex-direction: row;
    text-align: left;
    gap: 1rem;
    padding: 1rem 1.25rem;
  }

  .contact {
    padding: 5rem 0;
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .contact-methods {
    gap: 1rem;
  }

  .contact-item {
    padding: 1rem;
    background: var(--gray-50);
    border-radius: var(--radius-md);
  }

  .contact-icon {
    width: 2.75rem;
    height: 2.75rem;
    flex-shrink: 0;
  }

  .qrcode-section {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .qrcode-card {
    padding: 1.5rem;
  }

  .qrcode-wrapper {
    width: 140px;
    height: 140px;
    margin: 0 auto 1rem;
  }

  .qrcode-title {
    font-size: 1.125rem;
  }

  .qrcode-desc {
    font-size: 0.875rem;
  }

  .footer {
    padding: 4rem 0 1.5rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    text-align: center;
  }

  .footer-brand .logo {
    justify-content: center;
  }

  .footer-desc {
    text-align: center;
    max-width: 320px;
    margin: 0 auto 1.25rem;
  }

  .social-links {
    justify-content: center;
  }

  .footer-links h4 {
    text-align: center;
    margin-bottom: 1rem;
  }

  .footer-links ul {
    text-align: center;
  }

  .footer-links li {
    margin-bottom: 0.5rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .footer-legal {
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem 1rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }

  .hero-title {
    font-size: 1.875rem;
    line-height: 1.2;
  }

  .hero-subtitle {
    font-size: 0.9375rem;
  }

  .hero-badge {
    font-size: 0.8125rem;
    padding: 0.375rem 0.75rem;
  }

  .phone-mockup {
    width: 160px;
  }

  .phone-screen {
    padding: 1.5rem 1rem;
    min-height: 260px;
  }

  .sms-code {
    font-size: 2rem;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .stats-number {
    font-size: 1.75rem;
  }

  .stats-label {
    font-size: 0.8125rem;
  }

  .qrcode-section {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .qrcode-card {
    padding: 1.5rem;
  }

  .qrcode-wrapper {
    width: 150px;
    height: 150px;
    margin: 0 auto 1rem;
  }

  .qrcode-title {
    font-size: 1.125rem;
  }

  .qrcode-desc {
    font-size: 0.875rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

  .footer-brand .logo {
    justify-content: center;
  }

  .footer-desc {
    text-align: center;
    max-width: 280px;
    margin: 0 auto 1rem;
  }

  .social-links {
    justify-content: center;
  }

  .footer-links h4 {
    text-align: center;
  }

  .footer-links ul {
    text-align: center;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .footer-legal {
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem 1rem;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .section-subtitle {
    font-size: 0.9375rem;
    margin-bottom: 2.5rem;
  }

  .section-header {
    margin-bottom: 2.5rem;
  }

  .features,
  .services,
  .about,
  .contact {
    padding: 4rem 0;
  }

  .features-grid {
    gap: 1rem;
  }

  .feature-card {
    padding: 1.5rem;
  }

  .feature-icon {
    width: 3rem;
    height: 3rem;
  }

  .feature-title {
    font-size: 1rem;
  }

  .feature-desc {
    font-size: 0.875rem;
  }

  .services-grid {
    gap: 1rem;
  }

  .service-card {
    padding: 1.5rem;
  }

  .about-visual {
    max-width: 280px;
    margin: 0 auto;
  }

  .about-features {
    gap: 0.75rem;
  }

  .about-item {
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
  }

  .about-item svg {
    width: 1rem;
    height: 1rem;
  }

  .logo-icon {
    width: 2.25rem;
    height: 2.25rem;
  }

  .logo-text {
    font-size: 1.125rem;
  }
}