: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 18px 40px rgba(16, 22, 22, 0.08);
  --radius: 6px;
  --header-h: 4.25rem;
  --max: 72rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::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, 0.28), transparent 50%),
    linear-gradient(180deg, var(--color-mist) 0%, #f3f6f4 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;
}

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

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

.wrap {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

.wrap--narrow {
  width: min(100% - 2.5rem, 46rem);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.65rem 1.15rem;
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease), color 0.25s var(--ease);
}

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

.btn--primary:hover {
  background: var(--color-teal);
  border-color: var(--color-teal);
  color: #fff;
  transform: translateY(-2px);
}

.btn--secondary {
  background: rgba(217, 199, 162, 0.22);
  color: var(--color-pine);
  border-color: var(--color-sand);
}

.btn--secondary:hover {
  background: rgba(217, 199, 162, 0.45);
  transform: translateY(-2px);
  color: var(--color-pine);
}

/* Header */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(234, 244, 241, 0.78);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(24, 59, 55, 0.12);
}

.site-header__inner {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--color-pine);
}

.site-header__mark {
  width: 0.85rem;
  height: 1.35rem;
  background: linear-gradient(180deg, var(--color-sand), var(--color-teal));
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
}

.site-header__name {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.site-header__nav {
  display: flex;
  align-items: center;
  gap: 1.35rem;
}

.site-header__nav a {
  color: var(--color-ink);
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.03em;
}

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

.site-header__cta {
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--color-pine);
  border-radius: var(--radius);
  color: var(--color-pine) !important;
}

.site-header__toggle {
  display: none;
  background: none;
  border: 0;
  width: 2.4rem;
  height: 2.4rem;
  padding: 0;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  gap: 0.35rem;
}

.site-header__toggle span {
  display: block;
  height: 2px;
  width: 1.35rem;
  background: var(--color-pine);
  margin-inline: auto;
}

/* Hero home — asymmetric editorial */
.hero-home {
  padding: 4.5rem 0 3.5rem;
  overflow: hidden;
}

.hero-home__grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 3rem;
  align-items: end;
}

.hero-home__brand {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  line-height: 1.15;
  color: var(--color-pine);
  margin-bottom: 1.25rem;
  letter-spacing: 0.02em;
}

.hero-home__lede {
  font-size: 1.12rem;
  max-width: 32rem;
  color: var(--color-ink);
  opacity: 0.92;
}

.hero-home__meta {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  align-items: center;
}

.hero-home__note {
  font-size: 0.88rem;
  color: var(--color-teal);
  letter-spacing: 0.04em;
}

.hero-home__visual {
  position: relative;
  min-height: 28rem;
}

.hero-home__img {
  width: 100%;
  height: 32rem;
  object-fit: cover;
  border: 1px solid rgba(24, 59, 55, 0.18);
  box-shadow: var(--shadow-soft);
  transform: translateY(0);
  will-change: transform;
}

.hero-home__caption {
  position: absolute;
  left: -1.5rem;
  bottom: 2rem;
  max-width: 14rem;
  padding: 1rem 1.1rem;
  background: var(--color-ivory);
  border: 1px solid rgba(24, 59, 55, 0.15);
  font-size: 0.88rem;
  line-height: 1.5;
}

.reveal {
  opacity: 0;
  transform: translateY(1.25rem);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.reveal-delay-1 { transition-delay: 0.12s; }
.reveal-delay-2 { transition-delay: 0.24s; }
.reveal-delay-3 { transition-delay: 0.36s; }

.section {
  padding: 4.5rem 0;
}

.section--fade {
  opacity: 0;
  transform: translateY(1.5rem);
  transition: opacity 1s var(--ease), transform 1s var(--ease);
}

.section--fade.is-visible {
  opacity: 1;
  transform: none;
}

.section__eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-teal);
  margin-bottom: 0.75rem;
}

.section__title {
  font-size: clamp(1.7rem, 3vw, 2.35rem);
  max-width: 28rem;
  margin-bottom: 1rem;
}

.section__lead {
  max-width: 36rem;
  margin-bottom: 2.5rem;
  color: rgba(16, 22, 22, 0.88);
}

.section--offset {
  background: linear-gradient(90deg, transparent 0%, rgba(247, 244, 238, 0.7) 18%, rgba(247, 244, 238, 0.7) 100%);
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.split--reverse > :first-child {
  order: 2;
}

.split img {
  width: 100%;
  aspect-ratio: 5 / 4;
  object-fit: cover;
  border: 1px solid rgba(24, 59, 55, 0.14);
  box-shadow: var(--shadow-soft);
}

.offset-block {
  margin-top: 2rem;
  margin-left: clamp(0rem, 6vw, 4rem);
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
}

.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;
}

.card__img {
  aspect-ratio: 16 / 10;
  width: 100%;
  object-fit: cover;
}

.card__body {
  padding: 1.4rem 1.45rem 1.6rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card__title {
  font-size: 1.25rem;
  margin-bottom: 0.55rem;
}

.card__text {
  font-size: 0.98rem;
  flex: 1;
}

.card__link {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--color-pine);
  text-decoration: none;
  border-bottom: 1px solid var(--color-sand);
  align-self: flex-start;
}

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

/* Page hero */
.page-hero {
  padding: 3.5rem 0 2rem;
}

.page-hero__title {
  font-size: clamp(2rem, 4vw, 3rem);
  max-width: 22ch;
}

.page-hero__lead {
  max-width: 40rem;
  font-size: 1.08rem;
}

.page-hero--media {
  padding-bottom: 0;
}

.page-hero__media {
  margin-top: 2rem;
  width: 100%;
  max-height: 26rem;
  object-fit: cover;
  border: 1px solid rgba(24, 59, 55, 0.14);
}

.prose {
  max-width: 42rem;
}

.prose h2 {
  margin-top: 2.5rem;
  font-size: 1.45rem;
}

.prose h3 {
  margin-top: 1.75rem;
  font-size: 1.15rem;
}

.prose ul, .prose ol {
  padding-left: 1.25rem;
  margin: 0 0 1.25rem;
}

.prose li {
  margin-bottom: 0.4rem;
}

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

.prose th,
.prose td {
  border: 1px solid rgba(24, 59, 55, 0.18);
  padding: 0.65rem 0.75rem;
  text-align: left;
  vertical-align: top;
}

.prose th {
  background: rgba(46, 111, 106, 0.1);
  font-weight: 600;
}

/* Pricing */
.rate-list {
  display: grid;
  gap: 1.25rem;
}

.rate-item {
  padding: 1.5rem 1.6rem;
  background: var(--color-ivory);
  border: 1px solid rgba(24, 59, 55, 0.14);
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 1rem;
}

.rate-item__price {
  font-family: var(--font-serif);
  color: var(--color-teal);
  font-size: 1.15rem;
}

/* Reviews */
.quote-stack {
  display: grid;
  gap: 2rem;
}

.quote {
  padding: 1.75rem 0;
  border-top: 1px solid rgba(24, 59, 55, 0.14);
}

.quote:last-child {
  border-bottom: 1px solid rgba(24, 59, 55, 0.14);
}

.quote__text {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--color-pine);
}

.quote__meta {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: rgba(16, 22, 22, 0.75);
}

.story-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 2.5rem;
}

.story img {
  aspect-ratio: 16 / 10;
  object-fit: cover;
  margin-bottom: 1rem;
  border: 1px solid rgba(24, 59, 55, 0.12);
}

/* Forms */
.form {
  display: grid;
  gap: 1.1rem;
  max-width: 34rem;
}

.form__row {
  display: grid;
  gap: 0.4rem;
}

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

.form input,
.form select,
.form textarea {
  font: inherit;
  padding: 0.7rem 0.85rem;
  border: 1px solid rgba(24, 59, 55, 0.25);
  border-radius: var(--radius);
  background: #fff;
  color: var(--color-ink);
}

.form textarea {
  min-height: 8rem;
  resize: vertical;
}

.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: 2px solid rgba(46, 111, 106, 0.35);
  outline-offset: 1px;
}

.form__error {
  color: #8a2f2f;
  font-size: 0.85rem;
  display: none;
}

.form__error.is-visible {
  display: block;
}

.form-message {
  margin-top: 0.75rem;
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius);
  font-size: 0.92rem;
}

.form-message.is-success {
  background: rgba(46, 111, 106, 0.12);
  color: var(--color-pine);
  border: 1px solid rgba(46, 111, 106, 0.3);
}

.form-message.is-error {
  background: rgba(138, 47, 47, 0.08);
  color: #8a2f2f;
  border: 1px solid rgba(138, 47, 47, 0.25);
}

.contact-aside {
  padding: 1.5rem;
  background: var(--color-ivory);
  border: 1px solid rgba(24, 59, 55, 0.14);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2.5rem;
  align-items: start;
}

/* Curriculum timeline */
.timeline {
  display: grid;
  gap: 0;
  border-left: 1px solid rgba(24, 59, 55, 0.2);
  margin-left: 0.5rem;
  padding-left: 1.75rem;
}

.timeline__item {
  position: relative;
  padding-bottom: 2.25rem;
}

.timeline__item::before {
  content: "";
  position: absolute;
  left: -2.1rem;
  top: 0.35rem;
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
  background: var(--color-teal);
  border: 2px solid var(--color-mist);
}

.timeline__label {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--color-teal);
  margin-bottom: 0.35rem;
}

/* Footer */
.site-footer {
  margin-top: 4rem;
  background: var(--color-graphite);
  color: rgba(234, 244, 241, 0.88);
}

.site-footer a {
  color: rgba(234, 244, 241, 0.82);
  text-decoration: none;
}

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

.site-footer__inner {
  width: min(100% - 2.5rem, var(--max));
  margin: 0 auto;
  padding: 3.5rem 0 2.5rem;
  display: grid;
  grid-template-columns: 1.2fr 1.4fr 1fr;
  gap: 2.5rem;
}

.site-footer__title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--color-mist);
  margin-bottom: 0.4rem;
}

.site-footer__tag {
  color: var(--color-sand);
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
}

.site-footer__address,
.site-footer__contact {
  font-size: 0.92rem;
  line-height: 1.65;
}

.site-footer__cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.site-footer__heading {
  font-family: var(--font-serif);
  color: var(--color-sand);
  font-size: 0.95rem;
  margin-bottom: 0.85rem;
}

.site-footer__col {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  font-size: 0.9rem;
}

.site-footer__note {
  font-size: 0.88rem;
  margin-bottom: 1rem;
  opacity: 0.85;
}

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

.newsletter-form input {
  flex: 1 1 10rem;
  padding: 0.65rem 0.8rem;
  border: 1px solid rgba(217, 199, 162, 0.35);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-mist);
  font: inherit;
}

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

.site-footer__bottom {
  border-top: 1px solid rgba(234, 244, 241, 0.12);
  padding: 1rem 0 1.4rem;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(234, 244, 241, 0.55);
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  inset: auto 1rem 1rem 1rem;
  z-index: 200;
  max-width: 36rem;
}

.cookie-banner__inner {
  background: var(--color-ivory);
  border: 1px solid rgba(24, 59, 55, 0.2);
  box-shadow: var(--shadow-soft);
  padding: 1.25rem 1.35rem;
}

.cookie-banner__title {
  font-family: var(--font-serif);
  color: var(--color-pine);
  margin-bottom: 0.4rem;
}

.cookie-banner__text {
  font-size: 0.92rem;
  margin-bottom: 1rem;
}

.cookie-banner__actions {
  display: flex;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.cookie-banner__error {
  margin-top: 0.75rem;
  color: #8a2f2f;
  font-size: 0.85rem;
}

/* Detail lists */
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin: 2rem 0;
}

.detail-box {
  padding: 1.25rem 1.35rem;
  background: var(--color-ivory);
  border: 1px solid rgba(24, 59, 55, 0.14);
}

.detail-box h3 {
  font-size: 1.05rem;
}

.process-list {
  counter-reset: step;
  list-style: none;
  padding: 0;
  margin: 2rem 0;
}

.process-list li {
  position: relative;
  padding: 1.25rem 0 1.25rem 3.5rem;
  border-top: 1px solid rgba(24, 59, 55, 0.12);
  counter-increment: step;
}

.process-list li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1.25rem;
  font-family: var(--font-serif);
  color: var(--color-teal);
  font-size: 1.1rem;
}

.blog-meta {
  font-size: 0.88rem;
  color: rgba(16, 22, 22, 0.7);
  margin-bottom: 1.5rem;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 2rem;
}

.tag {
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  padding: 0.25rem 0.55rem;
  border: 1px solid rgba(24, 59, 55, 0.2);
  color: var(--color-teal);
}

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

.team-card img {
  aspect-ratio: 4 / 5;
  object-fit: cover;
  margin-bottom: 0.85rem;
  border: 1px solid rgba(24, 59, 55, 0.12);
}

.team-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.team-card p {
  font-size: 0.92rem;
}

.cta-band {
  margin: 3rem 0;
  padding: 2.5rem;
  background: var(--color-pine);
  color: var(--color-mist);
}

.cta-band h2 {
  color: var(--color-mist);
}

.cta-band p {
  max-width: 34rem;
  opacity: 0.9;
}

.cta-band .btn--primary {
  background: var(--color-sand);
  color: var(--color-pine);
  border-color: var(--color-sand);
}

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

.cta-band .btn--secondary:hover {
  color: var(--color-pine);
  background: rgba(217, 199, 162, 0.85);
}

.error-page {
  min-height: 60vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 4rem 1.5rem;
}

.error-page h1 {
  font-size: 3rem;
}

.curriculum-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: start;
}

@media (max-width: 960px) {
  .hero-home__grid,
  .split,
  .contact-layout,
  .site-footer__inner,
  .detail-grid,
  .story-grid,
  .rate-item,
  .curriculum-layout {
    grid-template-columns: 1fr;
  }

  .split--reverse > :first-child {
    order: 0;
  }

  .card-grid,
  .team-grid {
    grid-template-columns: 1fr;
  }

  .site-footer__cols {
    grid-template-columns: 1fr 1fr;
  }

  .hero-home__caption {
    left: 1rem;
    bottom: 1rem;
  }

  .hero-home__img {
    height: 22rem;
  }

  .hero-home__visual {
    min-height: auto;
  }

  .site-header__toggle {
    display: flex;
  }

  .site-header__nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    background: rgba(234, 244, 241, 0.96);
    backdrop-filter: blur(12px);
    flex-direction: column;
    align-items: flex-start;
    padding: 1.25rem 1.5rem 1.75rem;
    gap: 1rem;
    border-bottom: 1px solid rgba(24, 59, 55, 0.12);
    display: none;
  }

  .site-header__nav.is-open {
    display: flex;
  }
}

@media (max-width: 640px) {
  .site-footer__cols {
    grid-template-columns: 1fr;
  }

  .wrap,
  .wrap--narrow {
    width: min(100% - 1.5rem, var(--max));
  }

  .cta-band {
    padding: 1.75rem;
  }
}