:root {
  --color-mist: #EAF4F1;
  --color-pine: #183B37;
  --color-teal: #2E6F6A;
  --color-sand: #D9C7A2;
  --color-ink: #101616;
  --color-ivory: #F7F4EE;
  --color-graphite: #1A2221;
  --font-serif: "Noto Serif TC", "Songti TC", serif;
  --font-sans: "Noto Sans TC", "PingFang TC", sans-serif;
  --shadow-soft: 0 12px 40px rgba(16, 22, 22, 0.08);
  --radius: 6px;
  --header-h: 4.25rem;
  --space: clamp(1rem, 2.5vw, 2rem);
  --max: 72rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--color-ink);
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(46, 111, 106, 0.12), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(217, 199, 162, 0.25), transparent 50%),
    linear-gradient(180deg, var(--color-mist) 0%, #f3f7f5 40%, var(--color-mist) 100%);
  min-height: 100vh;
}

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

a {
  color: var(--color-teal);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--color-pine);
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-pine);
  margin: 0 0 0.75rem;
}

p {
  margin: 0 0 1rem;
}

ul {
  margin: 0 0 1rem;
  padding-left: 1.25rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.main {
  padding-top: var(--header-h);
}

.wrap {
  width: min(100% - 2 * var(--space), var(--max));
  margin-inline: auto;
}

.wrap--narrow {
  width: min(100% - 2 * var(--space), 46rem);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(234, 244, 241, 0.82);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(24, 59, 55, 0.12);
}

.site-header__inner {
  width: min(100% - 2 * var(--space), var(--max));
  margin-inline: auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.site-header__brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--color-pine);
}

.site-header__mark {
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  font-family: var(--font-serif);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  background: var(--color-pine);
  color: var(--color-sand);
  border-radius: 4px;
}

.site-header__name {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.site-header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid rgba(24, 59, 55, 0.25);
  background: transparent;
  border-radius: var(--radius);
  cursor: pointer;
}

.site-header__toggle-bar {
  display: block;
  width: 1.1rem;
  height: 1.5px;
  margin-inline: auto;
  background: var(--color-pine);
}

.site-nav__list {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 1.35rem;
  margin: 0;
  padding: 0;
}

.site-nav a {
  text-decoration: none;
  color: var(--color-ink);
  font-size: 0.92rem;
  letter-spacing: 0.02em;
}

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

.site-nav__cta {
  display: inline-block;
  padding: 0.45rem 0.9rem;
  background: var(--color-pine);
  color: var(--color-mist) !important;
  border-radius: var(--radius);
  transition: transform 0.2s ease, filter 0.2s ease;
}

.site-nav__cta:hover {
  transform: translateY(-1px);
  filter: brightness(1.08);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.55rem 1.1rem;
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 500;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s ease, filter 0.2s ease, background 0.2s ease;
}

.btn--primary {
  background: var(--color-pine);
  color: var(--color-mist);
  border-color: var(--color-pine);
}

.btn--primary:hover {
  transform: translateY(-2px);
  filter: brightness(1.08);
  color: var(--color-mist);
}

.btn--secondary {
  background: rgba(217, 199, 162, 0.28);
  color: var(--color-pine);
  border-color: rgba(24, 59, 55, 0.35);
}

.btn--secondary:hover {
  transform: translateY(-2px);
  filter: brightness(1.05);
  color: var(--color-pine);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

/* Hero */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: grid;
  align-items: end;
  overflow: hidden;
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.05);
  will-change: transform;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(16, 22, 22, 0.72) 0%, rgba(24, 59, 55, 0.45) 48%, rgba(24, 59, 55, 0.2) 100%),
    linear-gradient(0deg, rgba(16, 22, 22, 0.55) 0%, transparent 45%);
}

.hero__content {
  position: relative;
  z-index: 1;
  width: min(100% - 2 * var(--space), var(--max));
  margin: 0 auto;
  padding: clamp(3rem, 10vh, 6rem) 0 clamp(2.5rem, 8vh, 5rem);
  color: var(--color-mist);
  max-width: 38rem;
  margin-left: max(var(--space), calc((100% - var(--max)) / 2));
}

.hero__eyebrow {
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-sand);
  margin-bottom: 1rem;
  opacity: 0;
  animation: rise 0.9s ease forwards 0.15s;
}

.hero h1 {
  color: var(--color-mist);
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  margin-bottom: 1rem;
  opacity: 0;
  animation: rise 0.9s ease forwards 0.3s;
}

.hero__lead {
  font-size: 1.1rem;
  max-width: 32rem;
  color: rgba(234, 244, 241, 0.92);
  opacity: 0;
  animation: rise 0.9s ease forwards 0.45s;
}

.hero .btn-row {
  opacity: 0;
  animation: rise 0.9s ease forwards 0.6s;
}

.hero .btn--secondary {
  background: rgba(217, 199, 162, 0.18);
  color: var(--color-mist);
  border-color: rgba(217, 199, 162, 0.55);
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Sections */
.section {
  padding: clamp(3.5rem, 8vw, 6rem) 0;
}

.section--ivory {
  background: rgba(247, 244, 238, 0.65);
}

.section--offset {
  padding-top: clamp(2rem, 5vw, 3.5rem);
}

.section__head {
  max-width: 36rem;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.section__head--right {
  margin-left: auto;
  text-align: right;
}

.section__kicker {
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-teal);
  margin-bottom: 0.5rem;
}

.section__lead {
  color: rgba(16, 22, 22, 0.78);
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Asymmetric split */
.split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
}

.split--reverse {
  direction: rtl;
}

.split--reverse > * {
  direction: ltr;
}

.split__image {
  position: relative;
}

.split__image img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid rgba(24, 59, 55, 0.18);
  box-shadow: var(--shadow-soft);
}

.split__image--offset {
  margin-top: 2.5rem;
}

.split__image--offset img {
  margin-left: 8%;
  width: 92%;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.card {
  background: var(--color-ivory);
  border: 1px solid rgba(24, 59, 55, 0.16);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease;
}

.card:hover {
  transform: translateY(-3px);
}

.card__image {
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card__body {
  padding: 1.35rem 1.4rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card__body h3 {
  font-size: 1.25rem;
}

.card__body p {
  flex: 1;
  color: rgba(16, 22, 22, 0.8);
}

.card__link {
  margin-top: 0.75rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--color-pine);
}

.card__link:hover {
  color: var(--color-teal);
}

/* Evidence / quotes */
.quote-list {
  display: grid;
  gap: 1.5rem;
}

.quote {
  padding: 1.5rem 1.75rem;
  border-left: 2px solid var(--color-teal);
  background: rgba(247, 244, 238, 0.7);
}

.quote p {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--color-pine);
}

.quote footer {
  font-size: 0.9rem;
  color: rgba(16, 22, 22, 0.7);
}

/* Page hero (inner) */
.page-hero {
  padding: clamp(3rem, 7vw, 5rem) 0 clamp(2rem, 4vw, 3rem);
}

.page-hero h1 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  max-width: 18em;
}

.page-hero__lead {
  max-width: 38rem;
  font-size: 1.1rem;
  color: rgba(16, 22, 22, 0.8);
}

.page-hero--media {
  position: relative;
  min-height: 42vh;
  display: grid;
  align-items: end;
  overflow: hidden;
  margin-bottom: 0;
}

.page-hero--media .page-hero__bg {
  position: absolute;
  inset: 0;
}

.page-hero--media .page-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero--media .page-hero__veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(16, 22, 22, 0.7), rgba(24, 59, 55, 0.35));
}

.page-hero--media .wrap {
  position: relative;
  z-index: 1;
  padding-bottom: 2.5rem;
  color: var(--color-mist);
}

.page-hero--media h1,
.page-hero--media .page-hero__lead {
  color: var(--color-mist);
}

/* Service detail */
.detail-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 2.5rem;
  align-items: start;
}

.detail-panel {
  background: var(--color-ivory);
  border: 1px solid rgba(24, 59, 55, 0.16);
  padding: 1.5rem;
  box-shadow: var(--shadow-soft);
  position: sticky;
  top: calc(var(--header-h) + 1rem);
}

.detail-panel dt {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-teal);
  margin-top: 1rem;
}

.detail-panel dt:first-child {
  margin-top: 0;
}

.detail-panel dd {
  margin: 0.25rem 0 0;
}

.process-list {
  counter-reset: step;
  list-style: none;
  padding: 0;
}

.process-list li {
  counter-increment: step;
  position: relative;
  padding-left: 3rem;
  margin-bottom: 1.25rem;
}

.process-list li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-serif);
  color: var(--color-teal);
  font-weight: 600;
}

/* Pricing */
.rate-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-ivory);
  border: 1px solid rgba(24, 59, 55, 0.16);
}

.rate-table th,
.rate-table td {
  text-align: left;
  padding: 1rem 1.15rem;
  border-bottom: 1px solid rgba(24, 59, 55, 0.12);
  vertical-align: top;
}

.rate-table th {
  font-family: var(--font-serif);
  color: var(--color-pine);
  background: rgba(46, 111, 106, 0.08);
}

.factor-note {
  margin-top: 1.5rem;
  padding: 1.25rem 1.4rem;
  border: 1px dashed rgba(24, 59, 55, 0.3);
  background: rgba(234, 244, 241, 0.6);
}

/* Curriculum path */
.path-list {
  display: grid;
  gap: 0;
}

.path-item {
  display: grid;
  grid-template-columns: 5rem 1fr;
  gap: 1.5rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid rgba(24, 59, 55, 0.14);
}

.path-item__num {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  color: var(--color-teal);
}

/* Forms */
.form {
  display: grid;
  gap: 1.1rem;
  max-width: 36rem;
}

.form__row {
  display: grid;
  gap: 0.35rem;
}

.form__row--2 {
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-pine);
}

.form input,
.form select,
.form textarea {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 1px solid rgba(24, 59, 55, 0.28);
  border-radius: var(--radius);
  background: var(--color-ivory);
  font: inherit;
  color: var(--color-ink);
}

.form textarea {
  min-height: 9rem;
  resize: vertical;
}

.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: 2px solid var(--color-teal);
  outline-offset: 1px;
}

.field-error {
  color: #8b2e2e;
  font-size: 0.85rem;
  min-height: 1.2em;
}

.form-message {
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
}

.form-message--success {
  background: rgba(46, 111, 106, 0.15);
  color: var(--color-pine);
  border: 1px solid rgba(46, 111, 106, 0.35);
}

.form-message--error {
  background: rgba(139, 46, 46, 0.1);
  color: #8b2e2e;
  border: 1px solid rgba(139, 46, 46, 0.3);
}

.contact-aside {
  background: var(--color-ivory);
  border: 1px solid rgba(24, 59, 55, 0.16);
  padding: 1.5rem;
}

.contact-layout {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 2.5rem;
  align-items: start;
}

/* Legal */
.legal h2 {
  margin-top: 2.25rem;
  font-size: 1.35rem;
}

.legal table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  margin: 1rem 0 1.5rem;
}

.legal th,
.legal td {
  border: 1px solid rgba(24, 59, 55, 0.2);
  padding: 0.65rem 0.75rem;
  text-align: left;
  vertical-align: top;
}

.legal th {
  background: rgba(46, 111, 106, 0.1);
}

/* Blog */
.post-meta {
  font-size: 0.9rem;
  color: rgba(16, 22, 22, 0.65);
  margin-bottom: 1.5rem;
}

.prose img {
  margin: 1.5rem 0;
  border: 1px solid rgba(24, 59, 55, 0.15);
}

.prose p {
  max-width: 42rem;
}

/* Team */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.team-card__image {
  aspect-ratio: 3 / 4;
  overflow: hidden;
  margin-bottom: 1rem;
  border: 1px solid rgba(24, 59, 55, 0.16);
}

.team-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Footer */
.site-footer {
  background: var(--color-graphite);
  color: rgba(234, 244, 241, 0.88);
  margin-top: 4rem;
  padding: clamp(3rem, 6vw, 4.5rem) 0 0;
}

.site-footer a {
  color: var(--color-sand);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--color-mist);
}

.site-footer__inner {
  width: min(100% - 2 * var(--space), var(--max));
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 2rem 1.5rem;
}

.site-footer__title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--color-mist);
  margin-bottom: 0.25rem;
}

.site-footer__tag {
  font-size: 0.85rem;
  color: var(--color-sand);
  margin-bottom: 0.75rem;
}

.site-footer__heading {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  color: var(--color-mist);
  margin-bottom: 0.75rem;
}

.site-footer__col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-footer__col li {
  margin-bottom: 0.45rem;
}

.site-footer__newsletter {
  grid-column: 1 / -1;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(234, 244, 241, 0.12);
  max-width: 28rem;
}

.newsletter-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.newsletter-form input {
  flex: 1 1 12rem;
  padding: 0.65rem 0.8rem;
  border: 1px solid rgba(217, 199, 162, 0.4);
  border-radius: var(--radius);
  background: rgba(16, 22, 22, 0.35);
  color: var(--color-mist);
  font: inherit;
}

.newsletter-form input::placeholder {
  color: rgba(234, 244, 241, 0.5);
}

.site-footer__base {
  margin-top: 2.5rem;
  padding: 1rem var(--space);
  border-top: 1px solid rgba(234, 244, 241, 0.1);
  font-size: 0.85rem;
  color: rgba(234, 244, 241, 0.55);
  text-align: center;
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  padding: 1rem;
  background: rgba(26, 34, 33, 0.96);
  border-top: 1px solid rgba(217, 199, 162, 0.35);
  color: var(--color-mist);
}

.cookie-banner[hidden] {
  display: none !important;
}

.cookie-banner__inner {
  width: min(100%, var(--max));
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.cookie-banner__title {
  font-family: var(--font-serif);
  margin-bottom: 0.35rem;
  color: var(--color-sand);
}

.cookie-banner a {
  color: var(--color-sand);
}

.cookie-banner__actions {
  display: flex;
  gap: 0.6rem;
}

.cookie-banner .btn--secondary {
  color: var(--color-mist);
  border-color: rgba(217, 199, 162, 0.5);
}

/* 404 */
.error-page {
  min-height: 60vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 4rem var(--space);
}

.error-page h1 {
  font-size: clamp(3rem, 8vw, 5rem);
}

/* Story block */
.story {
  margin-top: 2.5rem;
  padding: 2rem;
  background: var(--color-ivory);
  border: 1px solid rgba(24, 59, 55, 0.16);
}

.story h3 {
  margin-bottom: 1rem;
}

/* Responsive */
@media (max-width: 920px) {
  .site-header__toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(234, 244, 241, 0.97);
    border-bottom: 1px solid rgba(24, 59, 55, 0.12);
    padding: 1rem var(--space) 1.25rem;
    display: none;
  }

  .site-nav.is-open {
    display: block;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.85rem;
  }

  .split,
  .split--reverse,
  .detail-grid,
  .contact-layout,
  .card-grid,
  .team-grid,
  .site-footer__inner,
  .form__row--2 {
    grid-template-columns: 1fr;
    direction: ltr;
  }

  .split__image--offset {
    margin-top: 0;
  }

  .split__image--offset img {
    margin-left: 0;
    width: 100%;
  }

  .section__head--right {
    text-align: left;
    margin-left: 0;
  }

  .detail-panel {
    position: static;
  }

  .path-item {
    grid-template-columns: 3rem 1fr;
  }

  .hero {
    min-height: 78vh;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .hero__eyebrow,
  .hero h1,
  .hero__lead,
  .hero .btn-row {
    opacity: 1;
  }
}