:root {
  --orange: #f45112;
  --ink: #273b4d;
  --black: #111111;
  --warm: #fffdf9;
  --white: #ffffff;
  --muted: #686864;
  --line: rgba(17, 17, 17, 0.14);
  --max: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--warm); color: var(--black); font-family: Arial, "Microsoft YaHei", sans-serif; letter-spacing: 0; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--orange); outline-offset: 4px; }

.section-shell { width: min(calc(100% - 80px), var(--max)); margin-inline: auto; }
.section-label { margin: 0 0 20px; color: var(--orange); font-size: 13px; font-weight: 800; text-transform: uppercase; }
h1, h2, h3, p { letter-spacing: 0; }
h2 { margin: 0; color: var(--ink); font-size: 56px; line-height: 1.06; }

.site-header { position: fixed; z-index: 20; top: 0; width: 100%; background: rgba(255, 253, 249, 0.96); border-bottom: 1px solid var(--line); }
.nav-shell { width: min(calc(100% - 80px), var(--max)); height: 78px; margin: auto; display: flex; align-items: center; justify-content: space-between; }
.brand-link img { width: 142px; height: 58px; object-fit: contain; }
.nav-links { display: flex; align-items: center; gap: 28px; font-size: 14px; color: var(--ink); }
.nav-links a:hover { color: var(--orange); }
.nav-cta { padding: 13px 20px; color: white !important; background: var(--orange); }
.menu-button { display: none; width: 44px; height: 44px; border: 0; background: transparent; color: var(--ink); font-size: 26px; }

.hero { min-height: 760px; padding-top: 78px; display: grid; grid-template-columns: minmax(420px, 5fr) 7fr; background: var(--white); }
.hero-copy { padding: 96px max(40px, calc((100vw - var(--max)) / 2)); padding-right: 54px; display: flex; flex-direction: column; justify-content: center; }
.hero h1 { margin: 0; font-size: 76px; line-height: 0.98; color: var(--ink); }
.hero h1 span { color: var(--orange); }
.hero-line { margin: 28px 0 12px; color: var(--ink); font-size: 24px; font-weight: 800; }
.hero-intro { max-width: 480px; margin: 0; color: var(--muted); font-size: 18px; line-height: 1.75; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.primary-button, .secondary-button { min-height: 54px; padding: 0 24px; display: inline-flex; align-items: center; justify-content: center; font-weight: 800; }
.primary-button { gap: 14px; background: var(--orange); color: var(--white); }
.secondary-button { border: 1px solid var(--line); color: var(--ink); }
.hero-media { position: relative; min-height: 600px; overflow: hidden; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero-media p { position: absolute; right: 24px; bottom: 24px; margin: 0; padding: 14px 18px; background: var(--white); color: var(--ink); font-size: 14px; font-weight: 700; }

.statement { padding-block: 108px; display: grid; grid-template-columns: 7fr 5fr; gap: 72px; align-items: end; }
.statement-copy p { margin: 0 0 20px; color: var(--muted); font-size: 18px; line-height: 1.8; }
.photo-band { display: grid; grid-template-columns: repeat(3, 1fr); height: 430px; }
.photo-band img { width: 100%; height: 100%; object-fit: cover; }
.photo-band img:nth-child(2) { border-inline: 4px solid var(--warm); }

.proof-band { padding-block: 54px; background: var(--ink); color: var(--white); }
.proof-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 36px; }
.proof-grid div { min-height: 112px; display: flex; flex-direction: column; justify-content: center; border-right: 1px solid rgba(255,255,255,0.22); }
.proof-grid div:last-child { border-right: 0; }
.proof-grid strong { font-size: 46px; line-height: 1; }
.proof-grid span { margin-top: 12px; color: rgba(255,255,255,0.68); font-size: 13px; line-height: 1.5; }

.courses { padding-block: 108px; }
.section-heading { max-width: 780px; margin-bottom: 64px; }
.course-list { border-top: 1px solid var(--line); }
.course-list article { padding: 42px 0; display: grid; grid-template-columns: 130px 1fr; border-bottom: 1px solid var(--line); }
.course-number { color: var(--orange); font-size: 16px; font-weight: 800; }
.course-list h3 { margin: 0 0 12px; color: var(--ink); font-size: 30px; }
.course-list p { max-width: 760px; margin: 0; color: var(--muted); font-size: 17px; line-height: 1.75; }

.learning-path { padding-block: 108px; background: var(--black); color: var(--white); }
.light-heading h2 { color: var(--white); }
.path-list { margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); list-style: none; border-top: 1px solid rgba(255,255,255,0.25); }
.path-list li { min-height: 220px; padding: 32px 24px 0 0; border-right: 1px solid rgba(255,255,255,0.25); }
.path-list li + li { padding-left: 24px; }
.path-list li:last-child { border-right: 0; }
.path-list span { color: var(--orange); font-size: 28px; font-weight: 800; }
.path-list p { margin: 54px 0 0; color: rgba(255,255,255,0.72); line-height: 1.8; }

.stage { padding-block: 108px; display: grid; grid-template-columns: 7fr 5fr; gap: 72px; align-items: center; }
.stage-media { height: 520px; }
.stage-media img { width: 100%; height: 100%; object-fit: cover; }
.stage-copy p:not(.section-label) { color: var(--muted); font-size: 17px; line-height: 1.8; }

.assessment-entry { padding-block: 84px; background: var(--orange); color: var(--white); }
.assessment-layout { display: grid; grid-template-columns: 1fr auto; gap: 72px; align-items: end; }
.assessment-layout .section-label { color: var(--white); }
.assessment-layout h2 { max-width: 760px; color: var(--white); }
.assessment-layout p:not(.section-label) { max-width: 680px; margin: 24px 0 0; font-size: 18px; line-height: 1.7; }
.assessment-button { min-height: 58px; padding: 0 26px; display: inline-flex; align-items: center; gap: 18px; background: var(--white); color: var(--orange); font-weight: 800; white-space: nowrap; }

.contact { padding-block: 108px; display: grid; grid-template-columns: 1fr auto; gap: 80px; align-items: center; }
.contact h2 span { color: var(--orange); }
.contact-copy > p:not(.section-label) { margin: 24px 0 28px; color: var(--muted); font-size: 18px; }
.contact-copy > a { display: block; width: fit-content; margin: 12px 0; color: var(--ink); font-size: 28px; font-weight: 800; }
.qr-list { display: flex; gap: 24px; }
.qr-list figure { margin: 0; text-align: center; }
.qr-list img { width: 180px; aspect-ratio: 1; object-fit: cover; border: 1px solid var(--line); }
.qr-list figcaption { margin-top: 10px; color: var(--muted); font-size: 13px; }

.site-footer { padding-block: 44px; background: var(--ink); color: var(--white); }
.footer-layout { display: grid; grid-template-columns: 1fr auto auto; gap: 40px; align-items: center; }
.footer-layout img { width: 130px; filter: brightness(0) invert(1); }
.footer-layout p { margin: 0; font-size: 14px; }

@media (max-width: 900px) {
  .section-shell, .nav-shell { width: min(calc(100% - 40px), var(--max)); }
  h2 { font-size: 40px; }
  .menu-button { display: grid; place-items: center; }
  .nav-links { position: absolute; top: 78px; left: 0; width: 100%; padding: 20px; display: none; flex-direction: column; align-items: stretch; gap: 0; background: var(--warm); border-bottom: 1px solid var(--line); }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 15px 0; }
  .nav-cta { margin-top: 8px; text-align: center; }
  .hero { min-height: 0; grid-template-columns: 1fr; }
  .hero-copy { padding: 70px 20px 54px; }
  .hero h1 { font-size: 56px; }
  .hero-media { min-height: 450px; }
  .statement, .stage, .contact { grid-template-columns: 1fr; gap: 40px; }
  .statement, .courses, .stage, .contact { padding-block: 72px; }
  .photo-band { height: auto; grid-template-columns: 1fr; }
  .photo-band img { height: 300px; }
  .photo-band img:nth-child(2) { border: 0; border-block: 4px solid var(--warm); }
  .proof-grid { grid-template-columns: repeat(2, 1fr); }
  .proof-grid div:nth-child(2) { border-right: 0; }
  .path-list { grid-template-columns: repeat(2, 1fr); }
  .path-list li:nth-child(2) { border-right: 0; }
  .assessment-layout { grid-template-columns: 1fr; gap: 36px; }
  .assessment-button { width: fit-content; }
  .qr-list { justify-content: center; }
}

@media (max-width: 560px) {
  h2 { font-size: 34px; }
  .brand-link img { width: 120px; }
  .hero h1 { font-size: 48px; }
  .hero-line { font-size: 21px; }
  .hero-actions { flex-direction: column; }
  .hero-actions a { width: 100%; }
  .hero-media { min-height: 360px; }
  .proof-grid { gap: 24px; }
  .proof-grid strong { font-size: 36px; }
  .course-list article { grid-template-columns: 1fr; gap: 18px; }
  .course-list h3 { font-size: 25px; }
  .path-list { grid-template-columns: 1fr; }
  .path-list li, .path-list li + li { min-height: 170px; padding: 28px 0; border-right: 0; border-bottom: 1px solid rgba(255,255,255,0.25); }
  .path-list p { margin-top: 28px; }
  .stage-media { height: 340px; }
  .qr-list { gap: 12px; }
  .qr-list img { width: min(42vw, 160px); }
  .footer-layout { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}