:root {
  --ink: #17211f;
  --muted: #5d6b66;
  --paper: #f6faf8;
  --white: #ffffff;
  --line: #d9e5df;
  --green: #1f6f62;
  --green-deep: #144d46;
  --mint: #dceee8;
  --coral: #c65a47;
  --gold: #dfaa47;
  --blue: #345f8f;
  --shadow: 0 18px 40px rgba(21, 42, 38, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "Noto Sans TC", "Microsoft JhengHei", system-ui, sans-serif;
  line-height: 1.7;
  letter-spacing: 0;
}

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

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  top: -80px;
  left: 1rem;
  z-index: 50;
  padding: 0.6rem 0.8rem;
  color: var(--white);
  background: var(--green-deep);
  border-radius: 6px;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 1rem;
}

.shell {
  width: min(1120px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  color: var(--white);
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 10px 30px rgba(25, 45, 41, 0.12);
  backdrop-filter: blur(16px);
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 1.4rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  min-width: 250px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  color: var(--white);
  background: var(--green);
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: 8px;
  font-weight: 800;
  line-height: 1;
}

.site-header.is-scrolled .brand-mark,
.site-header.is-open .brand-mark {
  border-color: rgba(31, 111, 98, 0.2);
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 1.08rem;
  line-height: 1.2;
}

.brand small {
  color: currentColor;
  font-size: 0.75rem;
  opacity: 0.78;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-left: auto;
  font-size: 0.95rem;
}

.site-nav a {
  text-decoration: none;
  opacity: 0.86;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  opacity: 1;
}

.header-cta,
.button,
.contact-button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 44px;
  padding: 0.72rem 1.05rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  line-height: 1.3;
}

.header-cta {
  color: var(--white);
  background: var(--coral);
}

.menu-button {
  display: none;
  margin-left: auto;
  min-height: 40px;
  padding: 0.45rem 0.7rem;
  color: inherit;
  background: transparent;
  border: 1px solid currentColor;
  border-radius: 8px;
  font: inherit;
}

.hero {
  position: relative;
  min-height: 82vh;
  display: grid;
  align-items: center;
  overflow: hidden;
  color: var(--white);
}

.hero-media,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-media {
  background-image: url("https://images.unsplash.com/photo-1509062522246-3755977927d7?auto=format&fit=crop&w=1800&q=82");
  background-position: center;
  background-size: cover;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(15, 36, 31, 0.86) 0%, rgba(15, 36, 31, 0.62) 46%, rgba(15, 36, 31, 0.28) 100%),
    linear-gradient(0deg, rgba(15, 36, 31, 0.42), rgba(15, 36, 31, 0.12));
}

.hero-content {
  position: relative;
  z-index: 1;
  padding-block: 8.6rem 4.6rem;
}

.eyebrow,
.section-kicker {
  margin: 0 0 0.8rem;
  color: var(--gold);
  font-size: 0.95rem;
  font-weight: 800;
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: 3.8rem;
  line-height: 1.12;
  letter-spacing: 0;
}

.hero-lede {
  max-width: 760px;
  margin: 1.2rem 0 0;
  font-size: 1.42rem;
  font-weight: 700;
}

.hero-copy {
  max-width: 720px;
  margin: 1rem 0 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.button-primary {
  color: var(--white);
  background: var(--coral);
}

.button-secondary {
  color: var(--ink);
  background: var(--white);
}

.signal-band {
  background: var(--green-deep);
  color: var(--white);
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.18);
}

.signal-grid div {
  min-height: 126px;
  padding: 1.35rem 1.1rem;
  background: var(--green-deep);
}

.signal-grid strong,
.signal-grid span {
  display: block;
}

.signal-grid strong {
  font-size: 1.35rem;
  line-height: 1.3;
}

.signal-grid span {
  margin-top: 0.4rem;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.95rem;
}

.section,
.media-section,
.contact-section {
  padding-block: 5.2rem;
}

.section-light {
  background: var(--paper);
}

.section-green {
  color: var(--white);
  background: var(--green-deep);
}

.section-green .section-kicker {
  color: #f1c86d;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 2.1rem;
}

h2,
h3,
p {
  overflow-wrap: anywhere;
}

h2 {
  margin: 0;
  font-size: 2.12rem;
  line-height: 1.3;
  letter-spacing: 0;
}

h3 {
  margin: 0;
  font-size: 1.12rem;
  line-height: 1.45;
  letter-spacing: 0;
}

p {
  margin: 0;
}

.section-copy {
  margin-top: 1rem;
  color: var(--muted);
}

.section-green .section-copy {
  color: rgba(255, 255, 255, 0.78);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 3rem;
  align-items: start;
}

.text-stack {
  display: grid;
  gap: 1rem;
  color: var(--muted);
  font-size: 1.04rem;
}

.fit-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.info-card,
.course-card,
.step {
  border-radius: 8px;
}

.info-card {
  padding: 1.4rem;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 10px 28px rgba(29, 62, 57, 0.07);
}

.info-card p,
.course-card p,
.step p {
  margin-top: 0.7rem;
  color: var(--muted);
}

.course-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.course-card {
  min-height: 100%;
  padding: 1.55rem;
  color: var(--ink);
  background: var(--white);
  border-top: 5px solid var(--gold);
}

.course-year {
  display: inline-block;
  margin-bottom: 0.65rem;
  color: var(--green);
  font-weight: 900;
}

.course-card ul {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
  color: var(--muted);
}

.course-card li + li {
  margin-top: 0.35rem;
}

.method-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 3rem;
  align-items: start;
}

.steps {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.step {
  padding: 1.35rem;
  background: var(--paper);
  border: 1px solid var(--line);
}

.step span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  margin-bottom: 0.9rem;
  color: var(--white);
  background: var(--blue);
  border-radius: 8px;
  font-weight: 900;
}

.media-section {
  background: #eef6f2;
}

.media-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.media-item {
  margin: 0;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.media-item img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.media-item figcaption {
  display: grid;
  gap: 0.35rem;
  padding: 1rem;
}

.media-item strong {
  font-size: 1.02rem;
}

.media-item span {
  color: var(--muted);
  font-size: 0.95rem;
}

.schedule-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 3rem;
  align-items: start;
}

.schedule-table {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.schedule-row {
  display: grid;
  grid-template-columns: 0.8fr 1fr 1.2fr;
  gap: 1px;
  background: var(--line);
}

.schedule-row span {
  min-height: 64px;
  display: flex;
  align-items: center;
  padding: 0.85rem 1rem;
  background: var(--white);
}

.schedule-head span {
  min-height: 48px;
  color: var(--white);
  background: var(--green);
  font-weight: 800;
}

.teacher-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 3rem;
  padding-block: 3.2rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.teacher-copy {
  display: grid;
  gap: 1rem;
  color: var(--muted);
  font-size: 1.03rem;
}

.contact-section {
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(20, 77, 70, 0.96), rgba(31, 111, 98, 0.9)),
    url("https://images.unsplash.com/photo-1516321318423-f06f85e504b3?auto=format&fit=crop&w=1800&q=82");
  background-position: center;
  background-size: cover;
}

.contact-section .section-kicker {
  color: #f1c86d;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.7fr);
  gap: 3rem;
  align-items: start;
}

.contact-layout p {
  margin-top: 1rem;
  color: rgba(255, 255, 255, 0.86);
  font-size: 1.05rem;
}

.contact-actions {
  display: grid;
  gap: 0.75rem;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 8px;
  backdrop-filter: blur(10px);
}

.contact-button.primary {
  color: var(--white);
  background: var(--coral);
}

.contact-button.secondary {
  color: var(--ink);
  background: var(--white);
}

.contact-note {
  display: grid;
  gap: 0.2rem;
  padding: 0.9rem 1rem;
  color: var(--ink);
  background: var(--white);
  border-radius: 8px;
}

.contact-note strong {
  color: var(--green-deep);
}

.contact-note span {
  color: var(--muted);
}

.site-footer {
  padding-block: 1.6rem;
  color: rgba(255, 255, 255, 0.76);
  background: #121b19;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.9rem;
}

@media (max-width: 980px) {
  .header-inner {
    min-height: 66px;
  }

  .menu-button {
    display: inline-flex;
    align-items: center;
  }

  .site-nav,
  .header-cta {
    display: none;
  }

  .site-header.is-open .site-nav {
    position: absolute;
    top: 66px;
    left: 0;
    right: 0;
    display: grid;
    gap: 0;
    padding: 0.7rem 20px 1rem;
    color: var(--ink);
    background: var(--white);
    border-bottom: 1px solid var(--line);
  }

  .site-header.is-open .site-nav a {
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--line);
  }

  .hero {
    min-height: 78vh;
  }

  .hero h1 {
    font-size: 2.72rem;
  }

  .hero-lede {
    font-size: 1.22rem;
  }

  .signal-grid,
  .fit-grid,
  .course-grid,
  .media-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .split,
  .method-layout,
  .schedule-layout,
  .teacher-panel,
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 680px) {
  .shell {
    width: min(100% - 28px, 1120px);
  }

  .brand {
    min-width: 0;
  }

  .brand small {
    display: none;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
  }

  .hero {
    min-height: 74vh;
  }

  .hero-content {
    padding-block: 7.5rem 3.4rem;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(15, 36, 31, 0.88), rgba(15, 36, 31, 0.72)),
      linear-gradient(0deg, rgba(15, 36, 31, 0.3), rgba(15, 36, 31, 0.1));
  }

  .hero h1 {
    font-size: 2.18rem;
  }

  .hero-copy {
    font-size: 1rem;
  }

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

  .button,
  .contact-button {
    width: 100%;
  }

  .section,
  .media-section,
  .contact-section {
    padding-block: 3.7rem;
  }

  h2 {
    font-size: 1.62rem;
  }

  .signal-grid,
  .fit-grid,
  .course-grid,
  .steps,
  .media-grid {
    grid-template-columns: 1fr;
  }

  .schedule-table {
    border-radius: 8px;
  }

  .schedule-row {
    grid-template-columns: 1fr;
  }

  .schedule-row span {
    min-height: 0;
    padding: 0.8rem 0.95rem;
  }

  .schedule-head {
    display: none;
  }
}