:root {
  --bg-dark: #0f172a;
  --bg-light: #121a2f;
  --accent: #7f5af0;
  --accent-soft: rgba(127, 90, 240, 0.25);
  --accent-secondary: #ffd166;
  --text-primary: #f8fafc;
  --text-secondary: rgba(248, 250, 252, 0.68);
  --surface: rgba(15, 23, 42, 0.65);
  --card-bg: rgba(18, 24, 47, 0.55);
  --border-soft: rgba(148, 163, 184, 0.2);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --shadow-soft: 0 18px 44px rgba(8, 12, 24, 0.45);
}

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

body {
  margin: 0;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text-primary);
  background: radial-gradient(circle at 18% 18%, rgba(127, 90, 240, 0.14), transparent 58%),
    radial-gradient(circle at 80% 8%, rgba(62, 207, 142, 0.12), transparent 52%), var(--bg-dark);
  min-height: 100vh;
}

.background-accent {
  position: fixed;
  width: 62vw;
  height: 62vw;
  min-width: 340px;
  background: radial-gradient(circle, rgba(127, 90, 240, 0.38), transparent 70%);
  filter: blur(72px);
  top: -25vw;
  right: -22vw;
  z-index: 0;
  pointer-events: none;
}

.page {
  position: relative;
  z-index: 1;
  max-width: 540px;
  margin: 0 auto;
  padding: 64px 24px 96px;
  display: flex;
  flex-direction: column;
  gap: 56px;
}

section {
  background: var(--card-bg);
  backdrop-filter: blur(18px);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-soft);
}

@media (prefers-reduced-motion: no-preference) {
  body.motion-ready section {
    opacity: 0;
    transform: translateY(26px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }

  body.motion-ready section.in-view {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero {
  background: linear-gradient(125deg, rgba(127, 90, 240, 0.86), rgba(15, 23, 42, 0.88));
  display: flex;
  flex-direction: column;
  gap: 22px;
  text-align: center;
  padding: 48px 24px 52px;
}

.eyebrow {
  letter-spacing: 0.4em;
  text-transform: uppercase;
  font-size: 0.78rem;
  color: var(--accent-secondary);
  margin: 0;
}

h1 {
  margin: 0;
  font-family: "Playfair Display", "Noto Serif SC", serif;
  font-size: clamp(2.1rem, 8vw, 2.8rem);
  line-height: 1.25;
}

.subtitle {
  margin: 0;
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.hero-meta {
  display: grid;
  gap: 12px;
  text-align: left;
}

.meta-item {
  background: rgba(15, 23, 42, 0.55);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.meta-label {
  display: block;
  color: var(--accent-secondary);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.meta-value {
  font-size: 1rem;
  font-weight: 500;
}

.primary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-weight: 600;
  padding: 16px 28px;
  border: none;
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
  background: linear-gradient(135deg, #7f5af0, #6246ea);
  color: #fff;
  box-shadow: 0 14px 28px rgba(127, 90, 240, 0.38);
}

.primary-btn:hover,
.primary-btn:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 18px 36px rgba(127, 90, 240, 0.42);
}

.section-header {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: center;
}

.section-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(127, 90, 240, 0.2);
  border: 1px solid rgba(127, 90, 240, 0.35);
  color: var(--accent-secondary);
}

.section-header h2 {
  margin: 0;
  font-size: 1.5rem;
}

.section-subtitle {
  margin: 6px 0 0;
  color: var(--text-secondary);
  font-size: 0.96rem;
  line-height: 1.6;
}

.intensive {
  background: linear-gradient(140deg, rgba(127, 90, 240, 0.28), rgba(15, 23, 42, 0.92));
  border: 1px solid rgba(127, 90, 240, 0.4);
}

.stat-grid {
  margin-top: 28px;
  display: grid;
  gap: 20px;
}

.stat-card {
  background: rgba(11, 17, 32, 0.65);
  border-radius: var(--radius-md);
  padding: 24px 24px 26px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 16px 28px rgba(8, 10, 22, 0.45);
  display: grid;
  gap: 12px;
}

.stat-value {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent-secondary);
  letter-spacing: 0.05em;
}

.stat-card h3 {
  margin: 0;
  font-size: 1.1rem;
}

.stat-card p {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.6;
}

.advantage-grid {
  margin-top: 30px;
  display: grid;
  gap: 20px;
}

.advantage-card {
  background: rgba(15, 23, 42, 0.58);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: transform 0.25s ease, border 0.25s ease, box-shadow 0.25s ease;
}

.advantage-card:hover,
.advantage-card:focus-within {
  transform: translateY(-4px);
  border-color: rgba(127, 90, 240, 0.45);
  box-shadow: 0 18px 32px rgba(10, 10, 30, 0.45);
}

.advantage-card h3 {
  margin: 0 0 10px;
  font-size: 1.2rem;
}

.advantage-card p {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.6;
}

.timeline-list {
  list-style: none;
  padding: 0;
  margin: 28px 0 0;
  display: grid;
  gap: 20px;
  position: relative;
}

.timeline-list li {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 16px;
  align-items: start;
  position: relative;
  padding-left: 12px;
}

.timeline-list li::before {
  content: "";
  position: absolute;
  left: 27px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, rgba(127, 90, 240, 0.6), transparent);
}

.timeline-list li:last-child::after {
  content: "";
  position: absolute;
  left: 24px;
  bottom: -20px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent-secondary);
  box-shadow: 0 0 0 6px rgba(127, 90, 240, 0.2);
}

.timeline-list .time {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent-secondary);
  letter-spacing: 0.04em;
}

.timeline-list .title {
  font-weight: 600;
  display: block;
  margin-bottom: 6px;
}

.timeline-list p {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.6;
}

.cta {
  text-align: center;
  background: linear-gradient(145deg, rgba(127, 90, 240, 0.32), rgba(15, 23, 42, 0.82));
  border: 1px solid rgba(127, 90, 240, 0.35);
}

.cta h2 {
  margin-top: 0;
  font-size: 1.6rem;
}

.cta p {
  margin: 12px 0 0;
  color: var(--text-secondary);
  line-height: 1.7;
}

.cta p span {
  color: var(--accent-secondary);
  font-weight: 600;
}

.cta-form {
  display: grid;
  gap: 18px;
  margin-top: 30px;
}

.form-field {
  display: grid;
  gap: 8px;
}

.form-field span {
  font-size: 0.95rem;
  font-weight: 500;
}

input,
textarea {
  border-radius: var(--radius-sm);
  border: 1px solid rgba(148, 163, 184, 0.25);
  background: rgba(15, 23, 42, 0.6);
  color: var(--text-primary);
  padding: 14px 16px;
  font-size: 0.95rem;
  transition: border 0.2s ease, box-shadow 0.2s ease;
}

.form-field--full {
  grid-column: 1 / -1;
}

input::placeholder,
textarea::placeholder {
  color: rgba(148, 163, 184, 0.42);
}

input:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
  outline: none;
}

.form-hint {
  margin-top: 18px;
  font-size: 0.86rem;
  color: var(--text-secondary);
}

.footer {
  text-align: center;
  background: rgba(15, 23, 42, 0.4);
  border: 1px solid rgba(127, 90, 240, 0.2);
  box-shadow: var(--shadow-soft);
  padding: 28px;
  color: rgba(148, 163, 184, 0.72);
  font-size: 0.85rem;
  display: grid;
  gap: 8px;
  border-radius: var(--radius-lg);
}

.footer p {
  margin: 0;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 32px;
  translate: -50% 20px;
  background: rgba(15, 23, 42, 0.92);
  color: var(--text-primary);
  padding: 14px 28px;
  border-radius: 999px;
  border: 1px solid rgba(127, 90, 240, 0.35);
  box-shadow: 0 18px 40px rgba(8, 10, 24, 0.55);
  opacity: 0;
  transition: opacity 0.35s ease, translate 0.35s ease;
  text-align: center;
  z-index: 10;
  font-size: 0.95rem;
}

.toast.visible {
  opacity: 1;
  translate: -50% 0;
}

@media (min-width: 720px) {
  body {
    background: radial-gradient(circle at 18% 18%, rgba(127, 90, 240, 0.2), transparent 62%),
      radial-gradient(circle at 75% 12%, rgba(62, 207, 142, 0.2), transparent 55%),
      linear-gradient(180deg, #0f172a 0%, #020617 100%);
  }

  .page {
    max-width: 960px;
    padding: 88px 40px 128px;
    gap: 72px;
  }

  section {
    padding: 52px 56px;
  }

  .hero {
    align-items: center;
    gap: 26px;
    padding: 56px 56px 60px;
  }

  .subtitle {
    max-width: 620px;
    margin: 0 auto;
  }

  .hero-meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    max-width: 780px;
  }

  .advantage-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }

  .stat-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

  .timeline-list {
    gap: 28px;
  }

  .timeline-list li {
    grid-template-columns: 140px 1fr;
  }

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

  .cta-form .form-field:nth-child(3),
  .cta-form .primary-btn {
    grid-column: 1 / -1;
  }

  .form-hint {
    text-align: center;
  }
}