:root {
  --bg: #05060e;
  --text: #0f172a;
  --subtext: #475569;
  --primary: #5c6eff;
  --primary-dark: #3d4be0;
  --accent: #15e0a3;
  --white: #ffffff;
  --neutral: #f5f5f7;
  --neutral-strong: #e2e8f0;
  --card-bg: #ffffff;
  --border: #dbe4f3;
  --radius-sm: 10px;
  --radius-md: 16px;
  --shadow-soft: 0 20px 45px rgba(15, 23, 42, 0.12);
  --shadow-hard: 0 35px 80px rgba(15, 23, 42, 0.18);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

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

body {
  margin: 0;
  color: var(--text);
  background-color: #f8fafc;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.7);
}

.header-content {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 18px 0;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.1em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-left: auto;
  font-size: 0.95rem;
}

.site-nav a {
  color: var(--subtext);
  transition: color 0.2s ease;
}

.site-nav a:hover {
  color: var(--text);
}

.cta-button {
  padding: 10px 20px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 25px rgba(92, 110, 255, 0.35);
}

.hero {
  padding: 112px 0 96px;
  background: radial-gradient(120% 120% at top left, #ffffff 0%, #eaefff 60%, #e0f7f4 100%);
}

.hero-content {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 64px;
  align-items: center;
}

.hero-eyebrow {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(92, 110, 255, 0.12);
  color: var(--primary-dark);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
}

.hero h1 {
  font-size: clamp(2.2rem, 3.8vw, 3.2rem);
  line-height: 1.15;
  margin: 18px 0;
}

.hero-desc {
  margin-bottom: 32px;
  color: var(--subtext);
  max-width: 540px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.button.primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
}

.button.primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 30px rgba(92, 110, 255, 0.35);
}

.button.ghost {
  background-color: rgba(92, 110, 255, 0.08);
  color: var(--primary-dark);
}

.button.ghost:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 18px rgba(92, 110, 255, 0.2);
}

.hero-metrics {
  display: flex;
  gap: 32px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.hero-metrics li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.metric-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-dark);
}

.metric-label {
  color: var(--subtext);
  font-size: 0.95rem;
}

.hero-media {
  position: relative;
  display: grid;
  gap: 24px;
  justify-items: start;
}

.glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top, rgba(92, 110, 255, 0.45), rgba(92, 110, 255, 0));
  filter: blur(80px);
  transform: translate(-20%, -20%);
  z-index: 0;
}

.hero-card {
  position: relative;
  padding: 24px 28px;
  border-radius: var(--radius-md);
  background: var(--white);
  box-shadow: var(--shadow-soft);
  z-index: 1;
  width: min(360px, 100%);
}

.hero-card h2,
.hero-card h3 {
  margin-top: 0;
  margin-bottom: 12px;
}

.hero-card.secondary {
  background: #101222;
  color: var(--white);
  width: min(300px, 100%);
  box-shadow: var(--shadow-hard);
}

.hero-card ul {
  padding-left: 18px;
  margin: 16px 0 0;
  color: var(--subtext);
}

.section {
  padding: 96px 0;
}

.section.alt {
  background-color: var(--neutral);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}

.section-eyebrow {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 999px;
  background-color: rgba(21, 224, 163, 0.12);
  color: #0f9c75;
  font-weight: 600;
  letter-spacing: 0.06em;
  font-size: 0.82rem;
  text-transform: uppercase;
}

.section-desc {
  color: var(--subtext);
  margin-top: 18px;
}

.grid {
  display: grid;
  gap: 28px;
}

.grid.two {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

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

.card,
.case-card,
.pricing-card,
.testimonial-card,
.highlight-card {
  border-radius: var(--radius-md);
  background: var(--card-bg);
  padding: 28px;
  box-shadow: 0 16px 32px rgba(15, 23, 42, 0.08);
}

.card h3,
.case-card h3,
.pricing-card h3,
.highlight-card h3 {
  margin-top: 0;
  margin-bottom: 16px;
}

.card p,
.case-card p,
.highlight-card p {
  margin: 0;
  color: var(--subtext);
}

.workflow {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.workflow-step {
  padding: 28px;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: 0 14px 28px rgba(15, 23, 42, 0.08);
  position: relative;
  overflow: hidden;
}

.workflow-index {
  position: absolute;
  top: -26px;
  right: -10px;
  font-size: 4rem;
  font-weight: 700;
  color: rgba(92, 110, 255, 0.1);
}

.case-card {
  position: relative;
}

.case-tag {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(92, 110, 255, 0.12);
  color: var(--primary-dark);
  font-weight: 600;
  font-size: 0.8rem;
  margin-bottom: 18px;
}

.case-card ul {
  margin: 18px 0 0;
  padding-left: 18px;
  color: var(--subtext);
}

.highlights .highlight-card {
  border: 1px solid var(--border);
}

.pricing-card {
  position: relative;
  text-align: left;
}

.pricing-number {
  font-size: 1.6rem;
  font-weight: 700;
  margin: 16px 0 24px;
}

.pricing-card ul {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
  color: var(--subtext);
}

.pricing-card ul li {
  padding: 10px 0;
  border-bottom: 1px solid rgba(226, 232, 240, 0.7);
}

.pricing-card ul li:last-child {
  border-bottom: none;
}

.pricing-card .button {
  width: 100%;
}

.pricing-card.featured {
  border: 2px solid rgba(92, 110, 255, 0.35);
  transform: translateY(-10px);
  background: linear-gradient(180deg, #ffffff 0%, #f1f4ff 100%);
}

.pricing-card .badge {
  position: absolute;
  top: 18px;
  right: 24px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(92, 110, 255, 0.15);
  color: var(--primary-dark);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.testimonials .testimonial-card {
  font-style: normal;
  color: var(--text);
  position: relative;
  padding-left: 48px;
}

.testimonial-card::before {
  content: "“";
  position: absolute;
  top: -10px;
  left: 18px;
  font-size: 3rem;
  color: rgba(92, 110, 255, 0.25);
}

.testimonial-card cite {
  display: block;
  margin-top: 18px;
  color: var(--subtext);
  font-style: normal;
  font-weight: 600;
}

.faq-list {
  display: grid;
  gap: 18px;
}

.faq-list details {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  box-shadow: 0 8px 16px rgba(15, 23, 42, 0.08);
}

.faq-list summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}

.faq-list summary::marker {
  display: none;
}

.faq-list p {
  margin: 14px 0 0;
  color: var(--subtext);
}

.contact {
  background: radial-gradient(120% 120% at top right, rgba(92, 110, 255, 0.12), rgba(21, 224, 163, 0.08), #ffffff);
}

.contact-content {
  display: grid;
  gap: 56px;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  align-items: start;
}

.contact-text {
  color: var(--text);
}

.contact-info {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  color: var(--subtext);
}

.contact-info li {
  margin-bottom: 12px;
}

.contact-form {
  background: var(--white);
  padding: 32px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  display: grid;
  gap: 18px;
}

.contact-form label {
  display: grid;
  gap: 8px;
  font-weight: 600;
  color: var(--text);
}

.contact-form input,
.contact-form textarea {
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid #d7def0;
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: rgba(92, 110, 255, 0.7);
  box-shadow: 0 0 0 3px rgba(92, 110, 255, 0.15);
  outline: none;
}

.form-note {
  margin: 0;
  color: var(--subtext);
  font-size: 0.85rem;
  text-align: center;
}

.site-footer {
  background: #0b1020;
  color: rgba(255, 255, 255, 0.72);
  padding: 64px 0;
}

.footer-content {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 1fr));
  gap: 48px;
}

.footer-brand .logo {
  color: var(--white);
  font-size: 1.2rem;
  margin-bottom: 12px;
}

.footer-links {
  display: grid;
  gap: 24px;
}

.footer-links h4 {
  margin: 0 0 12px;
  color: var(--white);
  font-size: 1rem;
}

.footer-links a {
  display: block;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 8px;
  font-size: 0.92rem;
  transition: color 0.2s ease;
}

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

.footer-meta {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 6px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
}

@media (max-width: 960px) {
  .site-nav {
    display: none;
  }

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

  .hero-media {
    justify-items: center;
  }

  .hero-card {
    width: min(420px, 100%);
  }

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

  .footer-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .header-content {
    padding: 14px 0;
  }

  .hero {
    padding: 88px 0 72px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-metrics {
    flex-wrap: wrap;
    gap: 20px;
  }

  .section {
    padding: 72px 0;
  }

  .card,
  .case-card,
  .pricing-card,
  .testimonial-card,
  .highlight-card,
  .workflow-step {
    padding: 22px;
  }

  .contact-form {
    padding: 24px;
  }
}