:root {
  --primary-blue: #0b57d0;
  --vivid-blue: #1a73e8;
  --accent-cyan: #00c6ff;
  --dark-blue: #072a6b;
  --deep-navy: #0f172a;
  --soft-blue-bg: #f4f8fe;
  --card-bg: #ffffff;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --border-light: #e2e8f0;
  --container-width: 1200px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 8px rgba(11, 87, 208, 0.06);
  --shadow-md: 0 10px 25px rgba(11, 87, 208, 0.08);
  --shadow-lg: 0 16px 36px rgba(11, 87, 208, 0.12);
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text-main);
  background-color: #f8fafc;
}

body {
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-container {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  box-shadow: var(--shadow-sm);
}

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

.brand-area {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-area .logo-container {
  max-width: 140px;
  display: flex;
  align-items: center;
}

.brand-slogan {
  font-size: 13px;
  color: var(--vivid-blue);
  font-weight: 600;
  padding-left: 10px;
  border-left: 2px solid var(--border-light);
  display: none;
}

@media (min-width: 992px) {
  .brand-slogan {
    display: inline-block;
  }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
}

.nav-links a {
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: #334155;
  transition: var(--transition);
  border-radius: var(--radius-sm);
}

.nav-links a:hover {
  color: var(--primary-blue);
  background: var(--soft-blue-bg);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  background: linear-gradient(135deg, var(--vivid-blue) 0%, var(--primary-blue) 100%);
  color: #ffffff;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 14px rgba(26, 115, 232, 0.35);
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(26, 115, 232, 0.45);
  color: #ffffff;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  background: transparent;
  color: var(--primary-blue);
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid var(--vivid-blue);
  transition: var(--transition);
  cursor: pointer;
}

.btn-outline:hover {
  background: var(--soft-blue-bg);
  transform: translateY(-2px);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--text-main);
  cursor: pointer;
}

.hero-section {
  padding: 80px 0 60px;
  background: radial-gradient(circle at 80% 20%, rgba(0, 198, 255, 0.08) 0%, rgba(244, 248, 254, 0.6) 40%, #ffffff 100%);
  border-bottom: 1px solid var(--border-light);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
}

.hero-content h1 {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--dark-blue);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.hero-tagline {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 30px;
  line-height: 1.8;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 30px;
}

.badge-item {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  background: #e8f0fe;
  color: var(--primary-blue);
  font-size: 13px;
  font-weight: 600;
  border-radius: 30px;
  border: 1px solid rgba(26, 115, 232, 0.2);
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

.hero-metrics-box {
  background: #ffffff;
  border: 1px solid rgba(26, 115, 232, 0.2);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-md);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  text-align: center;
}

.hero-metric-item .metric-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary-blue);
}

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

.hero-card-panel {
  background: linear-gradient(145deg, #ffffff 0%, #f0f6ff 100%);
  border: 1px solid #c7dcff;
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.hero-card-panel::before {
  content: "";
  position: absolute;
  top: -50px;
  right: -50px;
  width: 140px;
  height: 140px;
  background: radial-gradient(circle, rgba(0, 198, 255, 0.2) 0%, transparent 70%);
}

.engine-status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border-light);
}

.pulse-indicator {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: #0d9488;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: #0d9488;
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(13, 148, 136, 0.2);
}

.engine-stack-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.engine-row {
  background: #ffffff;
  padding: 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition);
}

.engine-row:hover {
  border-color: var(--vivid-blue);
  box-shadow: var(--shadow-sm);
  transform: translateX(4px);
}

.engine-name {
  font-weight: 600;
  font-size: 14px;
  color: var(--dark-blue);
}

.engine-tag {
  font-size: 12px;
  padding: 4px 8px;
  background: #f1f5f9;
  border-radius: 4px;
  color: var(--text-muted);
}

.section-wrapper {
  padding: 70px 0;
  border-bottom: 1px solid var(--border-light);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 48px;
}

.section-subtitle {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--vivid-blue);
  letter-spacing: 1px;
  margin-bottom: 8px;
  background: #e8f2ff;
  padding: 4px 12px;
  border-radius: 20px;
}

.section-title {
  font-size: 30px;
  font-weight: 800;
  color: var(--dark-blue);
  margin-bottom: 14px;
}

.section-intro {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
}

.intro-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.intro-card {
  background: #ffffff;
  padding: 28px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.intro-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: #93c5fd;
}

.intro-card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark-blue);
  margin-bottom: 12px;
}

.intro-card-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.service-box {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.service-box:hover {
  border-color: var(--vivid-blue);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.service-header {
  margin-bottom: 12px;
}

.service-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--dark-blue);
  margin-bottom: 6px;
}

.service-badge {
  font-size: 11px;
  padding: 2px 8px;
  background: #ecfeff;
  color: #0891b2;
  border-radius: 4px;
  display: inline-block;
  font-weight: 600;
}

.service-body {
  font-size: 13.5px;
  color: #475569;
  line-height: 1.6;
  margin-bottom: 16px;
}

.model-cloud-panel {
  background: linear-gradient(180deg, #f8fafc 0%, #eef4fe 100%);
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.model-tags-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 24px;
}

.model-chip {
  padding: 8px 16px;
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: 30px;
  font-size: 13px;
  font-weight: 600;
  color: #334155;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
  transition: var(--transition);
}

.model-chip:hover {
  border-color: var(--vivid-blue);
  color: var(--primary-blue);
  transform: scale(1.05);
}

.banner-gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.banner-image-wrapper {
  background: #ffffff;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.banner-image-wrapper img {
  display: block;
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: var(--transition);
}

.banner-image-wrapper:hover img {
  transform: scale(1.04);
}

.banner-caption {
  padding: 12px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--dark-blue);
  background: #ffffff;
}

.dual-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin-top: 30px;
}

.showcase-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.showcase-card img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  display: block;
}

.showcase-info {
  padding: 20px;
}

.process-steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  position: relative;
}

.process-step-item {
  background: #ffffff;
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  position: relative;
  box-shadow: var(--shadow-sm);
}

.step-number {
  font-size: 32px;
  font-weight: 800;
  color: #bfdbfe;
  line-height: 1;
  margin-bottom: 12px;
}

.step-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--dark-blue);
  margin-bottom: 8px;
}

.step-text {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

.evaluation-panel {
  background: #ffffff;
  border: 1px solid #c7dcff;
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-md);
}

.score-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-light);
  margin-bottom: 24px;
}

.score-lead {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.score-val {
  font-size: 48px;
  font-weight: 900;
  color: var(--primary-blue);
  line-height: 1;
}

.score-max {
  font-size: 18px;
  color: var(--text-muted);
  font-weight: 600;
}

.score-rating {
  font-size: 20px;
  color: #f59e0b;
  font-weight: 700;
}

.score-remark {
  font-size: 14px;
  color: #475569;
}

.comparison-table-wrap {
  width: 100%;
  overflow-x: auto;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 14px;
}

.comparison-table th,
.comparison-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-light);
}

.comparison-table th {
  background: var(--soft-blue-bg);
  color: var(--dark-blue);
  font-weight: 700;
}

.comparison-table tr:hover td {
  background: #f8fafc;
}

.highlight-row td {
  background: #f0f7ff;
  font-weight: 600;
}

.token-matrix-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.token-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.token-card.featured {
  border: 2px solid var(--vivid-blue);
  box-shadow: var(--shadow-md);
  position: relative;
}

.featured-ribbon {
  position: absolute;
  top: 12px;
  right: 12px;
  background: #ef4444;
  color: #ffffff;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
}

.token-model-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark-blue);
  margin-bottom: 4px;
}

.token-desc {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.token-price-wrap {
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--border-light);
}

.token-price {
  font-size: 26px;
  font-weight: 800;
  color: var(--primary-blue);
}

.token-price-sub {
  font-size: 12px;
  color: var(--text-muted);
}

.token-specs-list {
  list-style: none;
  font-size: 13px;
  color: #475569;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.testimonial-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.testimonial-quote {
  font-size: 14px;
  color: #334155;
  line-height: 1.7;
  margin-bottom: 18px;
  position: relative;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--border-light);
  padding-top: 14px;
}

.author-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: #dbeafe;
  color: var(--primary-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 15px;
}

.author-meta .author-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--dark-blue);
}

.author-meta .author-role {
  font-size: 12px;
  color: var(--text-muted);
}

.faq-accordion {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: var(--transition);
}

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 18px 20px;
  font-size: 15px;
  font-weight: 700;
  color: var(--dark-blue);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.faq-icon {
  font-size: 18px;
  color: var(--vivid-blue);
  transition: transform 0.3s;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
  padding: 0 20px;
  background: #fbfdff;
}

.faq-answer p {
  padding-bottom: 18px;
  font-size: 14px;
  color: #475569;
  line-height: 1.7;
}

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

.faq-item.active .faq-answer {
  max-height: 300px;
}

.split-contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 36px;
  align-items: start;
}

.form-panel {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 13.5px;
  font-weight: 600;
  color: #334155;
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--text-main);
  outline: none;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--vivid-blue);
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.15);
}

.contact-info-panel {
  background: linear-gradient(145deg, #ffffff 0%, #f4f8fe 100%);
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

.contact-meta-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-meta-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: #334155;
}

.contact-meta-label {
  font-weight: 700;
  color: var(--dark-blue);
  width: 90px;
}

.qr-code-box {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 16px;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.qr-code-box img {
  width: 130px;
  height: 130px;
  object-fit: contain;
  border-radius: 4px;
}

.qr-caption {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.article-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: var(--transition);
}

.article-card:hover {
  transform: translateY(-4px);
  border-color: var(--vivid-blue);
  box-shadow: var(--shadow-sm);
}

.article-date {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.article-heading {
  font-size: 16px;
  font-weight: 700;
  color: var(--dark-blue);
  margin-bottom: 8px;
  line-height: 1.4;
}

.article-link {
  font-size: 13px;
  color: var(--vivid-blue);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.friendlinks-wrap {
  padding: 30px 0;
  border-top: 1px solid var(--border-light);
  background: #f8fafc;
}

.friendlinks-list {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
}

.friendlinks-list a {
  color: #475569;
  transition: var(--transition);
}

.friendlinks-list a:hover {
  color: var(--vivid-blue);
}

.site-footer {
  background: #0f172a;
  color: #cbd5e1;
  padding: 60px 0 30px;
  font-size: 14px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col-title {
  color: #ffffff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: #94a3b8;
  transition: var(--transition);
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid #334155;
  padding-top: 24px;
  text-align: center;
  color: #64748b;
  font-size: 13px;
}

.floating-service-widget {
  position: fixed;
  right: 20px;
  bottom: 30px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.float-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary-blue);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(11, 87, 208, 0.35);
  cursor: pointer;
  border: none;
  transition: var(--transition);
  font-size: 20px;
}

.float-btn:hover {
  transform: scale(1.08);
  background: var(--vivid-blue);
}

.float-qr-modal {
  position: absolute;
  right: 58px;
  bottom: 0;
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 12px;
  box-shadow: var(--shadow-lg);
  display: none;
  flex-direction: column;
  align-items: center;
  width: 140px;
  text-align: center;
}

.float-qr-modal img {
  width: 110px;
  height: 110px;
}

.float-qr-modal span {
  font-size: 11px;
  color: #334155;
  margin-top: 6px;
  font-weight: 600;
}

.float-btn-wrap:hover .float-qr-modal {
  display: flex;
}

@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .split-contact-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .dual-showcase {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: #ffffff;
    padding: 20px;
    border-bottom: 1px solid var(--border-light);
    box-shadow: var(--shadow-md);
  }
  .nav-links.open a {
    width: 100%;
    padding: 10px;
  }
}

@media (max-width: 600px) {
  .hero-content h1 {
    font-size: 28px;
  }
  .hero-metrics-box {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
}