:root {
  --bg: #f6f2e9;
  --bg-soft: #fffaf3;
  --surface: #ffffff;
  --surface-strong: #fff7eb;
  --surface-dark: #121b2b;
  --text: #182235;
  --text-soft: #657084;
  --text-inverse: #f7f9fd;
  --line: rgba(24, 34, 53, 0.1);
  --accent: #ff8a3d;
  --accent-deep: #ef6d18;
  --accent-soft: #fff0e4;
  --teal: #18b79b;
  --teal-soft: #def8f2;
  --blue: #5082ff;
  --shadow-lg: 0 30px 80px rgba(18, 27, 43, 0.12);
  --shadow-md: 0 20px 44px rgba(18, 27, 43, 0.09);
  --radius-xl: 36px;
  --radius-lg: 28px;
  --radius-md: 22px;
  --radius-sm: 16px;
  --container: min(1120px, calc(100vw - 40px));
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(255, 138, 61, 0.12), transparent 22%),
    radial-gradient(circle at right 18%, rgba(24, 183, 155, 0.12), transparent 18%),
    linear-gradient(180deg, #fffaf3 0%, #f6f2e9 100%);
}

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

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

button,
input {
  font: inherit;
}

p,
li {
  line-height: 1.75;
  text-wrap: pretty;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  text-wrap: balance;
}

.site-shell {
  overflow-x: clip;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.section {
  position: relative;
  padding: 88px 0;
}

.section-tag {
  margin: 0 0 18px;
  font-family: "Manrope", sans-serif;
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--teal);
}

.section-tag.warm {
  color: var(--accent-deep);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 36px;
}

.section-heading h2 {
  font-size: clamp(2.1rem, 3.5vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.section-heading p:last-child {
  margin: 16px 0 0;
  color: var(--text-soft);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(255, 250, 243, 0.86);
  border-bottom: 1px solid rgba(24, 34, 53, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 88px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand img {
  width: 124px;
  object-fit: contain;
}

.brand-copy {
  display: grid;
  gap: 4px;
}

.brand-copy strong {
  font-family: "Manrope", sans-serif;
  font-size: 1.05rem;
}

.brand-copy span {
  color: var(--text-soft);
  font-size: 0.88rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

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

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

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 0 24px;
  border-radius: 999px;
  font-weight: 700;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    border-color 0.2s ease,
    background-color 0.2s ease;
}

.header-cta,
.button-primary {
  color: #ffffff;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  box-shadow: 0 18px 32px rgba(239, 109, 24, 0.22);
}

.button-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(24, 34, 53, 0.08);
}

.header-cta:hover,
.button:hover {
  transform: translateY(-2px);
}

.nav-toggle {
  display: none;
  border: 1px solid rgba(24, 34, 53, 0.14);
  background: rgba(255, 255, 255, 0.7);
  color: var(--text);
  padding: 10px 16px;
  border-radius: 999px;
}

.hero {
  padding-top: 48px;
}

.hero-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.98fr);
  gap: 36px;
  align-items: center;
}

.hero-copy h1 {
  font-size: clamp(3rem, 5vw, 5.15rem);
  line-height: 0.98;
  letter-spacing: -0.06em;
}

.hero-copy h1 span {
  color: var(--accent-deep);
}

.hero-lead {
  margin: 24px 0 0;
  max-width: 58ch;
  color: var(--text-soft);
  font-size: 1.05rem;
}

.hero-review {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 28px;
  padding: 16px 18px;
  max-width: 520px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(24, 34, 53, 0.08);
  box-shadow: var(--shadow-md);
}

.hero-review strong {
  display: block;
  font-size: 1rem;
}

.hero-review p {
  margin: 6px 0 0;
  color: var(--text-soft);
  font-size: 0.94rem;
}

.avatar-stack {
  display: flex;
  align-items: center;
  min-width: 120px;
}

.avatar-stack img {
  width: 52px;
  height: 52px;
  margin-left: -12px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid #ffffff;
}

.avatar-stack img:first-child {
  margin-left: 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 30px;
}

.hero-metrics article {
  padding: 20px 18px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.84), rgba(255, 255, 255, 0.72));
  border: 1px solid rgba(24, 34, 53, 0.08);
}

.hero-metrics strong {
  display: block;
  font-family: "Manrope", sans-serif;
  font-size: 1.8rem;
  letter-spacing: -0.05em;
}

.hero-metrics span {
  display: block;
  margin-top: 6px;
  color: var(--text-soft);
  font-size: 0.92rem;
}

.hero-visual {
  position: relative;
  min-height: 720px;
}

.hero-image-card {
  position: absolute;
  inset: 26px 0 80px 28px;
  overflow: hidden;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

.hero-image-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(18, 27, 43, 0.05), rgba(18, 27, 43, 0.22));
}

.hero-image-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.floating-card {
  position: absolute;
  max-width: 280px;
  padding: 18px 18px 20px;
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(24, 34, 53, 0.07);
  box-shadow: var(--shadow-md);
}

.floating-card span {
  display: block;
  color: var(--accent-deep);
  font-family: "Manrope", sans-serif;
  font-weight: 800;
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.floating-card strong {
  display: block;
  margin-top: 10px;
  font-size: 1.22rem;
}

.floating-card p {
  margin: 8px 0 0;
  color: var(--text-soft);
  font-size: 0.92rem;
}

.course-stat {
  top: 0;
  left: 0;
}

.lesson-stat {
  right: 0;
  top: 148px;
}

.salary-stat {
  bottom: 0;
  left: 72px;
}

.announcement {
  padding-top: 8px;
}

.announcement-card {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 28px;
  padding: 34px;
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at right top, rgba(24, 183, 155, 0.16), transparent 28%),
    linear-gradient(135deg, rgba(255, 240, 228, 0.95), rgba(255, 255, 255, 0.98));
  box-shadow: var(--shadow-lg);
}

.announcement-copy h2 {
  font-size: clamp(1.8rem, 2.8vw, 2.8rem);
  line-height: 1.12;
  letter-spacing: -0.04em;
}

.announcement-copy p:last-child {
  margin: 16px 0 0;
  color: var(--text-soft);
}

.announcement-form {
  display: grid;
  gap: 14px;
  align-content: center;
  padding: 22px;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid rgba(24, 34, 53, 0.08);
}

.announcement-form label {
  display: grid;
  gap: 10px;
}

.announcement-form span {
  font-weight: 700;
}

.announcement-form input {
  min-height: 56px;
  padding: 0 18px;
  border-radius: 18px;
  border: 1px solid rgba(24, 34, 53, 0.1);
  background: #ffffff;
  outline: none;
}

.announcement-form input:focus {
  border-color: rgba(239, 109, 24, 0.45);
  box-shadow: 0 0 0 4px rgba(255, 138, 61, 0.12);
}

.form-hint {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.88rem;
}

.program-grid,
.advantage-grid,
.outcome-grid {
  display: grid;
  gap: 20px;
}

.program-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.program-card,
.mentor-mini,
.advantage-card,
.outcome-card,
.contact-card,
.roadmap-panel,
.lead-mentor {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(24, 34, 53, 0.08);
  box-shadow: var(--shadow-md);
}

.program-card {
  display: grid;
  gap: 18px;
  padding: 28px;
  border-radius: var(--radius-lg);
}

.program-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.program-top p {
  margin: 0;
  font-family: "Manrope", sans-serif;
  color: var(--teal);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.program-top span {
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-deep);
  font-size: 0.82rem;
  font-weight: 700;
}

.program-card h3,
.lead-mentor-copy h3,
.roadmap-copy h3,
.contact-card h3,
.partner-copy h3 {
  font-size: clamp(1.4rem, 1.8vw, 1.8rem);
  line-height: 1.22;
}

.program-card p,
.program-card li,
.mentor-mini p,
.advantage-card p,
.outcome-card p,
.contact-card p,
.lead-mentor-copy p {
  color: var(--text-soft);
}

.program-card ul,
.lead-mentor-copy ul {
  margin: 0;
  padding-left: 1.2rem;
}

.program-card a {
  font-weight: 700;
  color: var(--accent-deep);
}

.muted-section {
  background:
    radial-gradient(circle at top right, rgba(80, 130, 255, 0.08), transparent 26%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.8), rgba(255, 250, 243, 0.86));
}

.mentor-shell .section-heading {
  max-width: 820px;
}

.mentor-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: 22px;
}

.lead-mentor {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(0, 1.1fr);
  gap: 0;
  overflow: hidden;
  border-radius: var(--radius-xl);
}

.lead-mentor-photo {
  min-height: 100%;
  background: linear-gradient(180deg, rgba(24, 183, 155, 0.1), rgba(24, 183, 155, 0.02));
}

.lead-mentor-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.lead-mentor-copy {
  padding: 30px;
}

.lead-mentor-copy strong {
  display: block;
  margin-top: 10px;
}

.mentor-side {
  display: grid;
  gap: 18px;
}

.mentor-mini {
  padding: 24px;
  border-radius: var(--radius-lg);
}

.mentor-mini span,
.roadmap-steps span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  background: var(--teal-soft);
  color: var(--teal);
  font-family: "Manrope", sans-serif;
  font-weight: 800;
}

.mentor-mini h3 {
  margin-top: 18px;
  font-size: 1.35rem;
}

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

.advantage-card {
  min-height: 220px;
  padding: 24px;
  border-radius: var(--radius-lg);
}

.advantage-card strong {
  display: block;
  font-size: 1.16rem;
}

.advantage-card p {
  margin: 14px 0 0;
}

.roadmap-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  gap: 28px;
  margin-top: 26px;
  padding: 28px;
  border-radius: var(--radius-xl);
}

.roadmap-copy {
  align-self: center;
}

.roadmap-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.roadmap-steps article {
  padding: 22px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255, 248, 235, 0.92), rgba(255, 255, 255, 0.92));
  border: 1px solid rgba(24, 34, 53, 0.07);
}

.roadmap-steps strong {
  display: block;
  margin-top: 14px;
  font-size: 1.12rem;
}

.roadmap-steps p {
  margin: 10px 0 0;
  color: var(--text-soft);
}

.dark-section {
  color: var(--text-inverse);
  background:
    radial-gradient(circle at top left, rgba(255, 138, 61, 0.18), transparent 20%),
    radial-gradient(circle at bottom right, rgba(24, 183, 155, 0.22), transparent 24%),
    linear-gradient(180deg, #1a2435 0%, #121b2b 100%);
}

.dark-section .section-heading p:last-child,
.dark-section .outcome-card p,
.dark-section .partner-copy p {
  color: rgba(247, 249, 253, 0.72);
}

.outcome-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.outcome-card {
  padding: 26px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: none;
}

.outcome-card span {
  color: #ffd0b1;
  font-family: "Manrope", sans-serif;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.82rem;
}

.outcome-card h3 {
  margin-top: 12px;
  font-size: 1.34rem;
}

.partner-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 26px;
  padding: 28px 30px;
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.contact-section {
  background:
    radial-gradient(circle at right top, rgba(24, 183, 155, 0.1), transparent 18%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.84), rgba(246, 242, 233, 1));
}

.contact-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.88fr);
  gap: 24px;
}

.contact-copy p:not(.section-tag) {
  color: var(--text-soft);
}

.contact-copy h2 {
  font-size: clamp(2rem, 3vw, 3.15rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.contact-points {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.contact-points p {
  display: flex;
  gap: 14px;
  margin: 0;
}

.contact-points strong {
  min-width: 64px;
  color: var(--text);
}

.contact-card {
  padding: 28px;
  border-radius: var(--radius-xl);
}

.contact-card-top p {
  margin: 12px 0 0;
}

.contact-qr {
  display: grid;
  place-items: center;
  margin-top: 22px;
  padding: 22px;
  border-radius: 26px;
  background: var(--surface-strong);
}

.contact-qr img {
  width: min(280px, 100%);
  border-radius: 18px;
}

.contact-actions {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.site-footer {
  color: rgba(247, 249, 253, 0.82);
  background: #10192a;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  padding: 48px 0 30px;
}

.footer-brand {
  max-width: 360px;
}

.footer-brand img {
  width: 160px;
}

.footer-brand p {
  margin: 16px 0 0;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  gap: 24px;
}

.footer-links strong {
  display: block;
  margin-bottom: 14px;
  color: #ffffff;
}

.footer-links a {
  display: block;
  margin-top: 10px;
  color: rgba(247, 249, 253, 0.68);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 0 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(247, 249, 253, 0.56);
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 0.7s ease,
    transform 0.7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .hero-shell,
  .announcement-card,
  .mentor-layout,
  .contact-shell,
  .roadmap-panel {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 640px;
  }

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

  .lead-mentor {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .site-nav,
  .header-cta {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav.is-open {
    position: absolute;
    top: calc(100% + 10px);
    right: 20px;
    display: grid;
    gap: 4px;
    padding: 12px;
    min-width: 220px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(24, 34, 53, 0.08);
    box-shadow: var(--shadow-md);
  }

  .site-nav.is-open a {
    padding: 10px 12px;
    border-radius: 14px;
  }

  .site-nav.is-open a:hover {
    background: var(--accent-soft);
  }

  .hero-copy h1 {
    font-size: clamp(2.5rem, 10vw, 4rem);
  }

  .hero-metrics,
  .advantage-grid,
  .program-grid,
  .outcome-grid,
  .roadmap-steps,
  .footer-links {
    grid-template-columns: 1fr;
  }

  .partner-panel,
  .footer-inner,
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 620px) {
  .section {
    padding: 72px 0;
  }

  .header-inner {
    min-height: 78px;
  }

  .brand img {
    width: 102px;
  }

  .brand-copy span {
    display: none;
  }

  .hero-visual {
    min-height: 520px;
  }

  .hero-image-card {
    inset: 16px 0 92px;
  }

  .floating-card {
    position: absolute;
    max-width: 220px;
    padding: 16px;
  }

  .course-stat {
    left: 0;
    top: 0;
  }

  .lesson-stat {
    right: 0;
    top: 184px;
  }

  .salary-stat {
    left: 12px;
    bottom: 0;
  }

  .announcement-card,
  .contact-card,
  .lead-mentor-copy,
  .program-card,
  .mentor-mini,
  .advantage-card,
  .roadmap-panel {
    padding: 22px;
  }

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

  .contact-points p {
    flex-direction: column;
    gap: 6px;
  }
}