:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-muted: #eef3fb;
  --text: #1c2432;
  --text-soft: #5a677c;
  --line: #d9e2f0;
  --primary: #1c5cff;
  --primary-dark: #1447c8;
  --dark: #0f1726;
  --dark-soft: #162033;
  --success: #0b8f63;
  --shadow: 0 18px 40px rgba(23, 44, 88, 0.1);
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: 1180px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}

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

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

p,
ul {
  margin-top: 0;
}

ul {
  padding-left: 1.2rem;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
  z-index: 1000;
  background: var(--dark);
  color: #fff;
  padding: 0.75rem 1rem;
  border-radius: 999px;
}

.container {
  width: min(calc(100% - 2rem), var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  background: rgba(245, 247, 251, 0.88);
  border-bottom: 1px solid rgba(217, 226, 240, 0.8);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 78px;
}

.brand {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.brand-logo {
  height: 54px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 1.4rem;
  color: var(--text-soft);
  font-size: 0.95rem;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.text-link:hover,
.text-link:focus-visible {
  color: var(--primary);
}

.site-nav a {
  transition: color 0.2s ease;
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 999px;
  padding: 0.6rem 1rem;
  font: inherit;
  color: var(--text);
}

.hero {
  padding: 5.5rem 0 3rem;
  background:
    radial-gradient(circle at top left, rgba(28, 92, 255, 0.14), transparent 30%),
    radial-gradient(circle at top right, rgba(11, 143, 99, 0.12), transparent 28%),
    var(--bg);
}

.hero-grid,
.about-grid,
.cta-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.95fr;
  gap: 2rem;
  align-items: center;
}

.eyebrow {
  margin-bottom: 0.9rem;
  color: var(--primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.82rem;
}

h1,
h2,
h3 {
  line-height: 1.2;
  margin-top: 0;
}

h1 {
  font-size: clamp(2.4rem, 4vw, 4.2rem);
  margin-bottom: 1.2rem;
}

h2 {
  font-size: clamp(1.9rem, 3vw, 2.8rem);
  margin-bottom: 0.9rem;
}

h3 {
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
}

.hero-text,
.section-heading p,
.service-card p,
.feature-card p,
.process-card p,
.case-card p,
.about-card li,
.contact-card p,
.intro-card p,
.faq-page-item p,
.content-block p,
.content-block li {
  color: var(--text-soft);
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin: 1.75rem 0;
}

.hero-badges,
.hero-stat-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-badges {
  margin-bottom: 1.2rem;
}

.hero-badge,
.hero-stat {
  border: 1px solid rgba(217, 226, 240, 0.9);
  background: rgba(255, 255, 255, 0.78);
  border-radius: 16px;
  padding: 0.85rem 1rem;
}

.hero-badge {
  color: var(--text-soft);
  font-weight: 600;
}

.hero-stat-grid {
  margin-top: 1.4rem;
}

.hero-stat {
  min-width: 160px;
  box-shadow: var(--shadow);
}

.hero-stat strong {
  display: block;
  color: var(--primary);
  font-size: 1.25rem;
  margin-bottom: 0.2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.9rem 1.35rem;
  font-weight: 700;
  transition: transform 0.2s ease, background 0.2s ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-1px);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}

.btn-secondary {
  background: var(--surface);
  border: 1px solid var(--line);
}

.text-link {
  display: inline-block;
  margin-top: 1rem;
  color: var(--primary);
  font-weight: 700;
}

.trust-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.trust-list li {
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid rgba(217, 226, 240, 0.9);
  color: var(--text-soft);
}

.hero-panel,
.faq-list {
  display: grid;
  gap: 1rem;
}

.info-card,
.metric-card,
.service-card,
.feature-card,
.process-card,
.case-card,
.about-card,
.contact-card,
.faq-item,
.intro-card,
.content-block,
.faq-page-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
}

.info-card {
  padding: 1.25rem;
}

.info-card ul {
  margin-bottom: 0;
}

.info-label,
.footer-title {
  font-weight: 700;
  margin-bottom: 0.6rem;
}

.section {
  padding: 5rem 0;
}

.section-muted {
  background: var(--surface-muted);
}

.section-dark {
  background: linear-gradient(180deg, var(--dark), var(--dark-soft));
  color: #fff;
}

.section-dark .eyebrow,
.section-dark p,
.section-dark .feature-card p {
  color: rgba(255, 255, 255, 0.76);
}

.section-dark .feature-card {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.08);
  box-shadow: none;
}

.section-heading {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 2.4rem;
}

.align-left {
  text-align: left;
  margin-left: 0;
}

.metrics,
.service-grid,
.feature-grid,
.process-grid,
.case-grid,
.footer-grid,
.page-grid,
.highlight-grid {
  display: grid;
  gap: 1.2rem;
}

.metrics,
.feature-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.service-grid,
.case-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.process-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.metric-card,
.service-card,
.feature-card,
.process-card,
.case-card,
.about-card,
.contact-card,
.intro-card,
.content-block,
.faq-page-item {
  padding: 1.5rem;
}

.service-card,
.feature-card,
.process-card,
.case-card,
.faq-page-item {
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.service-card:hover,
.feature-card:hover,
.process-card:hover,
.case-card:hover,
.faq-page-item:hover {
  transform: translateY(-4px);
  border-color: rgba(28, 92, 255, 0.22);
  box-shadow: 0 22px 48px rgba(23, 44, 88, 0.14);
}

.metric-card strong,
.process-card span {
  display: inline-block;
  color: var(--primary);
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 0.45rem;
}

.case-tag {
  display: inline-flex;
  margin-bottom: 0.85rem;
  border-radius: 999px;
  background: rgba(28, 92, 255, 0.1);
  color: var(--primary);
  padding: 0.3rem 0.7rem;
  font-size: 0.86rem;
  font-weight: 700;
}

.case-meta {
  display: grid;
  gap: 0.45rem;
  margin: 1rem 0 0.9rem;
  color: var(--text-soft);
  font-size: 0.95rem;
}

.case-meta strong {
  color: var(--text);
}

.info-list {
  display: grid;
  gap: 0.7rem;
  margin: 1rem 0 0;
}

.info-list strong {
  color: var(--text);
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  font-weight: 700;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item {
  padding: 1rem 1.2rem;
}

.faq-item p {
  margin: 0.9rem 0 0;
}

.section-footer {
  margin-top: 1.5rem;
  text-align: center;
}

.cta-section {
  background: linear-gradient(135deg, rgba(28, 92, 255, 0.08), rgba(11, 143, 99, 0.08));
}

.site-footer {
  padding: 2rem 0 3rem;
  background: var(--dark);
  color: rgba(255, 255, 255, 0.78);
}

.footer-grid {
  grid-template-columns: 1.3fr 1fr;
  align-items: start;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.4rem;
}

.footer-contact {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem 1.2rem;
  margin-top: 1rem;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.95rem;
}

.footer-contact span,
.footer-contact a {
  color: inherit;
}

.page-hero {
  padding: 4.8rem 0 2.5rem;
}

.breadcrumb {
  display: inline-flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  color: var(--text-soft);
  font-size: 0.95rem;
}

.page-grid {
  grid-template-columns: 1.2fr 0.8fr;
  align-items: start;
}

.intro-card,
.contact-card,
.about-card {
  position: sticky;
  top: 96px;
}

.highlight-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.faq-page-list {
  display: grid;
  gap: 1rem;
}

.faq-page-item h3 {
  margin-bottom: 0.6rem;
}

.news-list {
  display: grid;
  gap: 1rem;
}

.news-item {
  display: block;
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.news-item:hover,
.news-item:focus-visible {
  transform: translateY(-3px);
  border-color: rgba(28, 92, 255, 0.22);
  box-shadow: 0 22px 48px rgba(23, 44, 88, 0.14);
}

.news-item h2 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.news-item .news-meta {
  font-size: 0.9rem;
  color: var(--text-soft);
  margin-bottom: 0.75rem;
}

.news-item p {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.98rem;
}

.article-page .article-header {
  max-width: 760px;
  margin-bottom: 2rem;
}

.article-page .article-header h1 {
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  margin-bottom: 0.75rem;
}

.article-page .article-meta {
  color: var(--text-soft);
  font-size: 0.95rem;
}

.article-body {
  max-width: 760px;
}

.article-body h2 {
  font-size: 1.35rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.article-body p {
  margin: 0 0 1rem;
  color: var(--text);
}

.article-body ul {
  margin: 0 0 1rem;
  color: var(--text-soft);
}

.article-body li {
  margin-bottom: 0.35rem;
}

.article-footer-nav {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.article-footer-nav a {
  color: var(--primary);
  font-weight: 700;
}

.faq-page-item ul {
  color: var(--text-soft);
}

@media (max-width: 980px) {
  .hero-grid,
  .about-grid,
  .cta-grid,
  .page-grid,
  .metrics,
  .feature-grid,
  .process-grid,
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .service-grid,
  .case-grid,
  .highlight-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .menu-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    left: 1rem;
    right: 1rem;
    top: calc(100% + 0.5rem);
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.9rem;
    padding: 1rem;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: flex;
  }

  .hero,
  .section,
  .page-hero {
    padding: 4rem 0 2.2rem;
  }

  .hero-grid,
  .about-grid,
  .cta-grid,
  .page-grid,
  .metrics,
  .feature-grid,
  .process-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .intro-card,
  .contact-card,
  .about-card {
    position: static;
  }

  h1 {
    font-size: 2.3rem;
  }

  h2 {
    font-size: 1.8rem;
  }

  .brand-logo {
    height: 44px;
    max-width: 180px;
  }
}

@media (max-width: 520px) {
  .container {
    width: min(calc(100% - 1.2rem), var(--container));
  }

  .btn {
    width: 100%;
  }

  .hero-actions,
  .contact-actions {
    flex-direction: column;
  }

  .metric-card,
  .service-card,
  .feature-card,
  .process-card,
  .case-card,
  .about-card,
  .contact-card,
  .intro-card,
  .content-block,
  .faq-page-item {
    padding: 1.2rem;
  }
}