/* Root Variables */
:root {
  --container: 1180px;
  --primary: #0066cc;
  --primary-dark: #003d99;
  --primary-light: #e8f1ff;
  --secondary: #ffd700;
  --text-dark: #1a3a52;
  --text-light: #666666;
  --border: #e0e8f0;
  --bg-light: #f8fafc;
  --shadow: 0 2px 8px rgba(0, 51, 102, 0.08);
  --shadow-hover: 0 8px 16px rgba(0, 51, 102, 0.12);
  --transition: all 0.3s ease;
}

/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text-dark);
  background-color: #ffffff;
  line-height: 1.6;
}

.container {
  width: min(100% - 32px, var(--container));
  margin-inline: auto;
}

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

.image-box {
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: visible;
  line-height: 0;
}

.image-box img {
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

/* Header Navigation */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

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

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
  text-decoration: none;
  flex-shrink: 0;
}

.header-logo img {
  width: 80px;
  height: 80px;
  object-fit: contain;
}

.brand-text {
  color: var(--primary);
}

.nav-desktop {
  display: flex;
  gap: 24px;
  align-items: center;
  flex: 1;
  margin-left: 48px;
}

.nav-desktop a {
  color: var(--text-dark);
  text-decoration: none;
  font-size: 14px;
  transition: var(--transition);
  position: relative;
}

.nav-desktop a:hover {
  color: var(--primary);
}

.nav-desktop a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary);
  transition: width 0.3s ease;
}

.nav-desktop a:hover::after {
  width: 100%;
}

.header-btn {
  padding: 10px 20px;
  background-color: var(--primary);
  color: white;
  border: none;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.header-btn:hover {
  background-color: var(--primary-dark);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--text-dark);
  transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

.nav-mobile {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: white;
  border-top: 1px solid var(--border);
  flex-direction: column;
  gap: 0;
  padding: 8px 0;
  z-index: 1001;
  box-shadow: 0 4px 12px rgba(0, 51, 102, 0.1);
  width: 100%;
}

.nav-mobile.active {
  display: flex !important;
}

.nav-mobile a {
  padding: 12px 16px;
  text-align: left;
  color: var(--text-dark);
  text-decoration: none;
  border: none;
  background: none;
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
  display: block;
  width: 100%;
}

.nav-mobile a:hover {
  background-color: var(--primary-light);
  color: var(--primary);
}

.nav-mobile .mobile-btn {
  padding: 12px 16px;
  margin: 8px 16px;
  background-color: var(--primary);
  color: white;
  border: none;
  border-radius: 4px;
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
  display: block;
  width: calc(100% - 32px);
  font-weight: 500;
}

.nav-mobile .mobile-btn:hover {
  background-color: var(--primary-dark);
}

/* Hero Section */
.hero {
  padding: 60px 0 40px;
  background: linear-gradient(135deg, #ffffff 0%, #f0f6ff 100%);
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-text h1 {
  font-size: 42px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-dark);
  margin-bottom: 20px;
}

.hero-text > p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-light);
  margin-bottom: 24px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 32px;
}

.btn {
  padding: 12px 28px;
  border: none;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

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

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

.btn-secondary {
  background-color: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-secondary:hover {
  background-color: var(--primary-light);
}

.hero-tags {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.tag {
  padding: 8px 16px;
  background-color: var(--primary-light);
  color: var(--primary);
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  animation: slideInUp 0.6s ease-out backwards;
}

.tag:nth-child(1) { animation-delay: 0.1s; }
.tag:nth-child(2) { animation-delay: 0.2s; }
.tag:nth-child(3) { animation-delay: 0.3s; }
.tag:nth-child(4) { animation-delay: 0.4s; }

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-image {
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  overflow: hidden;
  background-color: var(--bg-light);
  min-height: 400px;
  padding: 20px;
}

.hero-image img {
  width: 100%;
  height: auto;
  object-fit: contain;
  max-height: 400px;
}

/* Brand Introduction Section */
.brand-intro {
  padding: 80px 0;
  background-color: #ffffff;
}

.brand-intro h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 48px;
  text-align: center;
}

.intro-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.intro-main {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.intro-card {
  background-color: var(--bg-light);
  padding: 32px;
  border-radius: 12px;
  border: 1px solid var(--border);
  transition: var(--transition);
}

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

.intro-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 16px;
}

.intro-card p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-light);
}

.intro-image-mid {
  border-radius: 12px;
  overflow: hidden;
  background-color: var(--bg-light);
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
}

.intro-image-mid img {
  width: 100%;
  height: auto;
  object-fit: contain;
  max-height: 300px;
}

.intro-features {
  display: grid;
  gap: 20px;
}

.intro-feature-card {
  background-color: var(--primary-light);
  padding: 24px;
  border-radius: 8px;
  border-left: 4px solid var(--primary);
  transition: var(--transition);
}

.intro-feature-card:hover {
  box-shadow: var(--shadow);
  transform: translateX(4px);
}

.intro-feature-card h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
}

.intro-feature-card p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-light);
}

/* Features Section */
.features {
  padding: 80px 0;
  background-color: var(--bg-light);
}

.features h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 48px;
  text-align: center;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.feature-card {
  background-color: white;
  padding: 32px;
  border-radius: 12px;
  border: 1px solid var(--border);
  transition: var(--transition);
  text-align: center;
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-6px);
  border-color: var(--primary);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 80px;
  margin-bottom: 20px;
  background-color: var(--primary-light);
  border-radius: 8px;
}

.feature-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 12px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-light);
}

/* Account Management Section */
.account-management {
  padding: 80px 0;
  background-color: white;
}

.account-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.account-management h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 32px;
  grid-column: 1 / -1;
}

.account-text {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.detail-item {
  background-color: var(--bg-light);
  padding: 20px;
  border-radius: 8px;
  border-left: 3px solid var(--primary);
  transition: var(--transition);
}

.detail-item:hover {
  box-shadow: var(--shadow);
}

.detail-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
}

.detail-item p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-light);
}

.account-image {
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background-color: var(--bg-light);
  padding: 24px;
  min-height: 450px;
}

.account-image img {
  width: 100%;
  height: auto;
  object-fit: contain;
  max-height: 450px;
}

/* Security Section */
.security {
  padding: 80px 0;
  background: linear-gradient(135deg, #0066cc 0%, #003d99 100%);
}

.security h2 {
  font-size: 36px;
  font-weight: 700;
  color: white;
  margin-bottom: 48px;
  text-align: center;
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.security-item {
  background-color: rgba(255, 255, 255, 0.1);
  padding: 28px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  text-align: center;
  transition: var(--transition);
}

.security-item:hover {
  background-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-4px);
}

.security-icon {
  font-size: 40px;
  margin-bottom: 16px;
  display: flex;
  justify-content: center;
  height: 60px;
  align-items: center;
}

.security-item h3 {
  font-size: 18px;
  font-weight: 600;
  color: white;
  margin-bottom: 12px;
}

.security-item p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.9);
}

/* Scenarios Section */
.scenarios {
  padding: 80px 0;
  background-color: var(--bg-light);
}

.scenarios h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 48px;
  text-align: center;
}

.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.scenario-card {
  background-color: white;
  padding: 32px;
  border-radius: 12px;
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
}

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

.scenario-number {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
  opacity: 0.3;
  margin-bottom: 12px;
}

.scenario-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.scenario-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-light);
}

/* Gallery Section */
.gallery {
  padding: 80px 0;
  background-color: white;
}

.gallery h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 48px;
  text-align: center;
}

.gallery-container {
  position: relative;
  display: flex;
  align-items: center;
  gap: 16px;
}

.gallery-wrapper {
  flex: 1;
  overflow: hidden;
  border-radius: 12px;
  background-color: var(--bg-light);
}

.gallery-scroll {
  display: flex;
  gap: 16px;
  scroll-behavior: smooth;
  overflow-x: auto;
  padding: 12px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.gallery-scroll::-webkit-scrollbar {
  height: 6px;
}

.gallery-scroll::-webkit-scrollbar-track {
  background: transparent;
}

.gallery-scroll::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

.gallery-item {
  flex-shrink: 0;
  width: 300px;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  overflow: hidden;
  background-color: white;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.gallery-item:hover {
  box-shadow: var(--shadow);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 12px;
}

.gallery-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background-color: var(--primary);
  color: white;
  border: none;
  border-radius: 50%;
  font-size: 24px;
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
}

.gallery-btn:hover {
  background-color: var(--primary-dark);
  transform: scale(1.1);
}

/* Process Section */
.process {
  padding: 80px 0;
  background-color: var(--bg-light);
}

.process-container {
  width: min(100% - 32px, var(--container));
  margin-inline: auto;
}

.process h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 48px;
  text-align: center;
}

.process-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.process-step {
  background-color: white;
  padding: 28px;
  border-radius: 8px;
  border-left: 4px solid var(--primary);
  position: relative;
  transition: var(--transition);
}

.process-step:hover {
  box-shadow: var(--shadow-hover);
  transform: translateX(4px);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--primary);
  color: white;
  border-radius: 50%;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}

.process-step h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.process-step p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-light);
}

/* FAQ Section */
.faq {
  padding: 80px 0;
  background-color: white;
}

.faq .container {
  width: min(100% - 32px, var(--container));
  margin-inline: auto;
}

.faq h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 48px;
  text-align: center;
}

.faq-items {
  margin: 0;
}

.faq-item {
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  background: none;
  border: none;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}

.faq-question:hover {
  background-color: var(--primary-light);
  color: var(--primary);
}

.faq-icon {
  font-size: 24px;
  transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer p {
  padding: 0 24px 20px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-light);
}

/* Footer */
.footer {
  background-color: var(--text-dark);
  color: white;
  padding: 60px 0 20px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-section h3,
.footer-section h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  color: white;
}

.footer-section p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 12px;
}

.footer-section ul {
  list-style: none;
}

.footer-section li {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 8px;
}

.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: var(--secondary);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
  text-align: center;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
}

.footer-bottom p {
  margin-bottom: 8px;
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  background-color: var(--primary);
  color: white;
  border: none;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 999;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.back-to-top:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
}

.back-to-top.show {
  display: flex;
}

.back-to-top::after {
  content: '↑';
  font-size: 20px;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

section {
  animation: fadeInUp 0.6s ease-out;
}

/* Responsive Design */
@media (max-width: 768px) {
  :root {
    --container: 100%;
  }

  .nav-desktop {
    display: none;
  }

  .header-logo img {
    width: 60px;
    height: 60px;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-mobile {
    padding: 0;
  }

  .nav-mobile.active {
    display: flex;
  }

  .nav-mobile a {
    padding: 14px 16px;
    min-height: 44px;
    display: flex;
    align-items: center;
    font-size: 14px;
  }

  .nav-mobile .mobile-btn {
    padding: 12px 16px;
    margin: 8px 16px;
    min-height: 44px;
    display: flex;
    align-items: center;
    font-size: 14px;
    width: calc(100% - 32px);
  }

  .header-btn {
    padding: 8px 16px;
    font-size: 12px;
  }

  /* Hero Section */
  .hero {
    padding: 40px 0 32px;
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .hero-text h1 {
    font-size: 28px;
    margin-bottom: 16px;
    line-height: 1.4;
  }

  .hero-text > p {
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 20px;
  }

  .hero-buttons {
    flex-direction: column;
    gap: 12px;
  }

  .btn {
    width: 100%;
    min-height: 44px;
    padding: 12px 16px;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .hero-image {
    min-height: 280px;
    padding: 16px;
  }

  .hero-image img {
    max-height: 280px;
  }

  /* Sections */
  section {
    padding: 50px 0 !important;
  }

  h2 {
    font-size: 28px !important;
    margin-bottom: 32px !important;
  }

  /* Brand Introduction */
  .intro-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .intro-image-mid {
    min-height: 250px;
  }

  .intro-image-mid img {
    max-height: 250px;
  }

  /* Features */
  .features-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .feature-card {
    padding: 20px;
    min-height: auto;
  }

  .feature-card h3 {
    font-size: 16px;
  }

  .feature-card p {
    font-size: 13px;
    line-height: 1.6;
  }

  .feature-icon {
    height: 60px;
  }

  /* Account Management */
  .account-content {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .account-management h2 {
    grid-column: 1;
    margin-bottom: 24px;
  }

  .account-image {
    min-height: 300px;
    padding: 16px;
  }

  .account-image img {
    max-height: 300px;
  }

  /* Gallery */
  .gallery-container {
    gap: 8px;
  }

  .gallery-item {
    width: 240px;
    height: 320px;
  }

  .gallery-btn {
    width: 36px;
    height: 36px;
    font-size: 18px;
  }

  /* FAQ */
  .faq-question {
    padding: 16px;
    font-size: 15px;
    min-height: 48px;
    display: flex;
    align-items: center;
  }

  .faq-answer p {
    padding: 0 16px 16px;
    font-size: 13px;
    line-height: 1.7;
  }

  /* Process */
  .process-step {
    padding: 20px;
  }

  .process-step h3 {
    font-size: 16px;
  }

  .process-step p {
    font-size: 13px;
  }

  /* Security */
  .security-item {
    padding: 20px;
  }

  .security-item h3 {
    font-size: 16px;
    margin-bottom: 8px;
  }

  .security-item p {
    font-size: 13px;
    line-height: 1.6;
  }

  /* Footer */
  .footer-content {
    gap: 24px;
  }

  .footer-section h3,
  .footer-section h4 {
    font-size: 14px;
  }

  .footer-section p,
  .footer-section li {
    font-size: 12px;
  }

  /* Back to Top */
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    font-size: 18px;
  }
}

@media (max-width: 375px) {
  .container {
    width: calc(100% - 16px);
    margin-inline: 8px;
  }

  .header-logo img {
    width: 50px;
    height: 50px;
  }

  .header-content {
    padding: 10px 0;
  }

  .hero-text h1 {
    font-size: 24px;
  }

  .hero-text > p {
    font-size: 13px;
  }

  .hero-tags {
    gap: 8px;
  }

  .tag {
    padding: 6px 12px;
    font-size: 11px;
  }

  .hero-buttons {
    flex-direction: column;
    gap: 10px;
  }

  .btn {
    width: 100%;
    padding: 10px 16px;
  }

  h2 {
    font-size: 24px !important;
    margin-bottom: 24px !important;
  }

  .feature-card,
  .intro-card {
    padding: 16px;
  }

  .detail-item {
    padding: 16px;
  }

  .security-item,
  .scenario-card,
  .process-step {
    padding: 20px;
  }

  .gallery-item {
    width: 200px;
    height: 280px;
  }

  .nav-mobile a {
    padding: 13px 14px;
    min-height: 44px;
    display: flex;
    align-items: center;
    font-size: 14px;
  }

  .nav-mobile .mobile-btn {
    padding: 11px 12px;
    margin: 6px 12px;
    min-height: 44px;
    display: flex;
    align-items: center;
    font-size: 14px;
    width: calc(100% - 24px);
  }

  .footer-section {
    gap: 12px;
  }
}