:root {
  --mint-50: #F0F6FF;
  --mint-100: #D8E7FA;
  --mint-200: #A8CBF0;
  --mint-400: #5A98EB;
  --mint-600: #2261C7;
  --mint-800: #003E99;
  --mint-900: #002766;

  --cream: #F8FAFC;
  --paper: #F1F5F9;
  --surface: #FFFFFF;
  --ink: #0F172A;
  --ink-soft: #334155;
  --ink-mute: #64748B;
  --line: #E2E8F0;

  --warm-accent: #EAB308;
  --shadow-soft: 0 18px 42px rgba(15, 23, 42, 0.08);
  --radius-ui: 10px;
  --radius-panel: 14px;

  --serif: "Noto Serif TC", "Songti SC", serif;
  --sans: "Noto Sans TC", -apple-system, BlinkMacSystemFont, sans-serif;
  --display: "Noto Serif TC", "Songti SC", serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--cream);
  color: var(--ink);
  line-height: 1.72;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
}

/* ============ NAVIGATION ============ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.08);
}

.nav-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 8px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  position: relative;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--mint-900);
  flex-shrink: 0;
  position: relative;
  z-index: 230;
}

.logo-img {
  width: 54px;
  height: 54px;
  object-fit: contain;
  background: transparent;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-zh {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0;
}

.logo-en {
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 700;
  color: var(--ink-mute);
  letter-spacing: 0;
  font-style: normal;
}

.nav-menu {
  display: flex;
  gap: 2px;
  list-style: none;
  flex: 1;
  justify-content: center;
  min-width: 0;
}

.nav-menu a,
.nav-course-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 10px;
  border: 0;
  background: transparent;
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.4;
  font-weight: 500;
  border-radius: var(--radius-ui);
  transition: all 0.25s ease;
  position: relative;
  font-family: inherit;
  cursor: pointer;
}

.nav-top-icon {
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.nav-menu a:hover,
.nav-course-toggle:hover {
  color: var(--mint-800);
  background: var(--mint-50);
}

.nav-menu a.active,
.nav-course-menu.open .nav-course-toggle,
.nav-course-menu:focus-within .nav-course-toggle {
  color: var(--mint-800);
  background: var(--mint-100);
}

.nav-course-menu {
  position: relative;
}

.nav-course-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  min-width: 220px;
  padding: 10px;
  margin: 0;
  list-style: none;
  background: rgba(250, 250, 247, 0.98);
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  box-shadow: var(--shadow-soft);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 8px);
  transition: opacity 0.22s ease, transform 0.22s ease;
  z-index: 120;
}

.nav-course-dropdown::before {
  content: "";
  position: absolute;
  top: -12px;
  left: 0;
  right: 0;
  height: 12px;
}

.nav-course-menu.force-close .nav-course-dropdown {
  opacity: 0 !important;
  pointer-events: none !important;
  transform: translate(-50%, 8px) !important;
}

.nav-course-menu.open .nav-course-dropdown,
.nav-course-menu:hover .nav-course-dropdown,
.nav-course-menu:focus-within .nav-course-dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, 0);
}

.nav-course-dropdown a {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  justify-content: flex-start;
  border-radius: 8px;
  padding: 10px 12px;
  white-space: nowrap;
  color: var(--ink-soft);
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease;
}

.course-sub-icon {
  width: 15px;
  height: 15px;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.course-sub-icon-fill circle {
  fill: currentColor;
}

.nav-course-dropdown a:hover,
.nav-course-dropdown a:focus-visible {
  background: var(--mint-100);
  color: var(--mint-800);
}

.nav-cta {
  background: var(--warm-accent);
  color: var(--mint-900);
  padding: 10px 16px;
  border-radius: var(--radius-ui);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  min-width: 128px;
  justify-content: center;
  white-space: nowrap;
  position: relative;
  z-index: 230;
}

.nav-cta svg,
.nav-cta-label {
  flex: 0 0 auto;
}

.nav-cta-icon {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.nav-cta-label {
  display: inline-block;
  position: relative;
  z-index: 231;
}

.nav-cta:hover {
  background: #FEF08A;
  transform: translateY(-1px);
}

.nav-cta[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  left: 50%;
  top: calc(100% + 10px);
  transform: translateX(-50%) translateY(-4px);
  padding: 7px 10px;
  border-radius: 6px;
  background: var(--mint-900);
  color: var(--cream);
  font-size: 12px;
  line-height: 1;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  box-shadow: var(--shadow-soft);
  z-index: 260;
}

.nav-cta[data-tooltip]::before {
  content: "";
  position: absolute;
  left: 50%;
  top: calc(100% + 4px);
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-bottom-color: var(--mint-900);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 260;
}

.nav-cta[data-tooltip]:hover::after,
.nav-cta[data-tooltip]:focus-visible::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.nav-cta[data-tooltip]:hover::before,
.nav-cta[data-tooltip]:focus-visible::before {
  opacity: 1;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--mint-900);
  border-radius: var(--radius-ui);
}

/* ============ PAGE WRAPPERS ============ */
.page {
  display: none;
  animation: fadeIn 0.4s ease;
}
.page.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

main {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}

body[data-page="home"] main {
  display: flex;
  flex-direction: column;
}

body[data-page="home"] .courses {
  order: -1;
  padding-top: 20px;
  padding-bottom: 46px;
}

/* ============ HOME HERO ============ */
.hero {
  padding: 12px 0 48px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 80px;
  align-items: center;
}

.hero-content {
  position: relative;
  isolation: isolate;
  padding: 44px 0;
}

.hero-content::before {
  content: "";
  position: absolute;
  top: 35%;
  left: 50%;
  right: auto;
  width: min(520px, 82vw);
  aspect-ratio: 1;
  background: url("pics/logo.png") center / contain no-repeat;
  opacity: 0.5;
  mix-blend-mode: screen;
  transform: translate(-50%, -50%);
  z-index: 0;
  pointer-events: none;
}

.hero-content::after {
  content: "";
  position: absolute;
  inset: 16px -12px;
  background: radial-gradient(circle at 58% 50%, rgba(251, 250, 246, 0.5), rgba(251, 250, 246, 0.82) 64%, rgba(251, 250, 246, 0) 100%);
  z-index: 1;
  pointer-events: none;
}

.hero-content > * {
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--warm-accent);
  margin-bottom: 18px;
  font-weight: 500;
}

.hero-eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--mint-400);
}

.hero h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(40px, 5.2vw, 64px);
  line-height: 1.15;
  letter-spacing: 0;
  margin-bottom: 20px;
  color: var(--ink);
}

.hero h1 em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  color: var(--mint-600);
}

.hero p {
  font-size: 17px;
  color: var(--ink-soft);
  max-width: 480px;
  margin-bottom: 28px;
  line-height: 1.8;
}

.hero-cta-row {
  display: flex;
  gap: 20px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 32px;
}

.btn-primary {
  background: var(--mint-800);
  color: var(--cream);
  padding: 15px 28px;
  border-radius: var(--radius-ui);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  line-height: 1.4;
}

.btn-primary .cta-icon,
.btn-primary svg {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.btn-primary .cta-icon-fill {
  fill: currentColor;
  stroke: none;
}

.btn-primary:hover {
  background: var(--mint-900);
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

.btn-ghost {
  color: var(--ink);
  padding: 14px 24px;
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  border: 1.5px solid var(--ink);
  border-radius: var(--radius-ui);
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
}

.btn-ghost:hover {
  color: var(--mint-800);
  border-color: var(--mint-800);
  background: var(--mint-50);
}

.hero-visual {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border-radius: var(--radius-panel);
  background: transparent;
  box-shadow: var(--shadow-soft);
}

/* ============ STATS BAR ============ */
.stats {
  background: var(--paper);
  border-radius: var(--radius-panel);
  padding: 56px 48px;
  margin-bottom: 100px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.stat-item {
  text-align: center;
  position: relative;
  padding: 0 16px;
}

.stat-item:not(:last-child)::after {
  content: "";
  position: absolute;
  right: -16px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--line);
}

.stat-num {
  font-family: var(--display);
  font-size: 56px;
  font-weight: 600;
  color: var(--mint-800);
  letter-spacing: 0;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.5;
}

.stat-label-sm {
  font-size: 12px;
  line-height: 1.45;
}

/* ============ SECTION HEADER ============ */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 48px;
  gap: 32px;
  flex-wrap: wrap;
}

.section-eyebrow {
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--warm-accent);
  margin-bottom: 16px;
  font-weight: 700;
}

.section-title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(32px, 3.8vw, 44px);
  line-height: 1.2;
  letter-spacing: 0;
  max-width: 600px;
}

.section-title em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  color: var(--mint-600);
}

.section-link {
  color: var(--ink);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  border-bottom: 1px solid var(--line);
  padding-bottom: 4px;
  transition: all 0.25s ease;
  flex-shrink: 0;
}

.section-link:hover {
  color: var(--mint-800);
  border-color: var(--mint-800);
}

/* ============ COURSE GRID ============ */
.courses {
  padding-bottom: 100px;
}

.course-showcase-panel {
  background: linear-gradient(115deg, rgba(0, 62, 153, 0.84) 0%, rgba(34, 97, 199, 0.72) 100%);
  color: var(--cream);
  border: 1px solid rgba(168, 203, 240, 0.5);
  box-shadow: 0 22px 46px rgba(0, 62, 153, 0.24);
  border-radius: 32px;
  padding: 38px 42px 34px;
  overflow: hidden;
  position: relative;
}

.course-showcase-panel::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -120px;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: rgba(234, 179, 8, 0.28);
  opacity: 0.45;
  filter: blur(78px);
  pointer-events: none;
}

.course-showcase-header {
  position: relative;
  z-index: 1;
  margin-bottom: 10px;
}

.course-showcase-header .section-eyebrow {
  color: var(--mint-900);
  background: rgba(255, 255, 255, 0.68);
  width: max-content;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.course-showcase-header h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(32px, 3.8vw, 44px);
  line-height: 1.2;
  color: var(--cream);
  white-space: nowrap;
}

.course-home-header {
  margin-bottom: 40px;
}

.course-slogan {
  margin: 0 auto 26px;
  text-align: center;
  color: var(--mint-900);
}

.course-slogan-zh {
  font-family: var(--serif);
  font-size: clamp(36px, 4.2vw, 52px);
  font-weight: 600;
  line-height: 1.25;
  white-space: nowrap;
}

.course-slogan-en {
  margin-top: 8px;
  font-size: clamp(20px, 2vw, 28px);
  font-weight: 600;
  line-height: 1.3;
  color: var(--warm-accent);
  white-space: nowrap;
}

.course-slogan-rotator {
  position: relative;
  width: min(940px, 100%);
  min-height: 42px;
  margin: 18px auto 0;
  overflow: hidden;
  color: var(--mint-800);
  text-align: center;
}

.course-slogan-slide {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  opacity: 0;
  animation: courseSloganFade 30s infinite;
}

.course-slogan-slide:nth-child(2) {
  animation-delay: 5s;
}

.course-slogan-slide:nth-child(3) {
  animation-delay: 10s;
}

.course-slogan-slide:nth-child(4) {
  animation-delay: 15s;
}

.course-slogan-slide:nth-child(5) {
  animation-delay: 20s;
}

.course-slogan-slide:nth-child(6) {
  animation-delay: 25s;
}

.course-slogan-slide strong {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.35;
}

.course-slogan-slide span {
  font-size: clamp(16px, 1.5vw, 20px);
  font-weight: 600;
  line-height: 1.45;
  white-space: nowrap;
}

.course-slogan-slide b {
  font-weight: 800;
}

.course-slogan-slide u {
  text-decoration-color: var(--warm-accent);
  text-underline-offset: 4px;
  text-decoration-thickness: 2px;
}

@keyframes courseSloganFade {
  0%, 4% { opacity: 0; transform: translateY(8px); }
  8%, 18% { opacity: 1; transform: translateY(0); }
  20%, 100% { opacity: 0; transform: translateY(-8px); }
}

.course-service-note {
  position: relative;
  z-index: 1;
  max-width: 980px;
  margin: 0 0 16px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 15px;
  line-height: 1.55;
  text-align: left;
}

.course-home-header-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
  margin-top: 8px;
}

.course-home-header-inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.course-home-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  transform: translateX(-56px);
}

.course-highlight-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  padding: 20px 22px;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.course-highlight-card:hover {
  border-color: var(--mint-200);
  box-shadow: var(--shadow-soft);
}

.course-highlight-num {
  font-family: var(--display);
  font-size: 36px;
  font-weight: 600;
  color: var(--mint-800);
  line-height: 1;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.course-highlight-text {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.55;
}

.course-home-points {
  margin-top: 22px;
  display: grid;
  gap: 10px;
  list-style: none;
  color: var(--ink-soft);
  font-size: 15px;
}

.course-home-points li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.course-home-points li::before {
  content: "";
  width: 7px;
  height: 7px;
  margin-top: 10px;
  border-radius: 50%;
  background: var(--warm-accent);
  flex: 0 0 auto;
}

.course-home-button {
  display: flex;
  width: max-content;
  max-width: 100%;
  margin: 28px auto 0;
  white-space: nowrap;
}

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

.course-grid-slim {
  position: relative;
  z-index: 1;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
}

.course-grid-slim .course-title {
  font-size: clamp(13px, 1.05vw, 16px);
  white-space: normal;
  width: 100%;
  text-align: center;
  align-self: center;
  grid-row: 2;
}

/* ============ FLIP CARDS ============ */
.flip-card {
  perspective: 1000px;
  min-height: 240px;
}

.flip-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 240px;
  transform-style: preserve-3d;
  transition: transform 0.55s cubic-bezier(0.16, 1, 0.3, 1);
}

.flip-card:hover .flip-card-inner,
.flip-card.flipped .flip-card-inner {
  transform: rotateY(180deg);
}

.flip-card-front,
.flip-card-back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: var(--radius-panel);
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
}

.flip-card-front {
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--ink);
  transition: border-color 0.25s ease;
  display: grid;
  grid-template-rows: 44px minmax(42px, auto) auto;
  align-content: center;
  justify-items: center;
  text-align: center;
  gap: 10px;
}

.flip-card-front .course-title {
  color: var(--ink);
}

.flip-card-front .course-desc {
  color: var(--ink-soft);
}

.flip-card:hover .flip-card-front {
  border-color: var(--mint-200);
}

.flip-card-back {
  background: var(--mint-800);
  color: var(--cream);
  transform: rotateY(180deg);
}

.flip-icon {
  width: 44px;
  height: 44px;
  background: var(--mint-100);
  border-radius: var(--radius-ui);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--mint-800);
  margin: 0 auto;
  flex-shrink: 0;
  grid-row: 1;
}

.flip-icon svg {
  width: 24px;
  height: 24px;
}

.flip-back-title {
  font-family: var(--serif);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 10px;
  color: var(--cream);
}

.flip-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 7px;
  flex: 1;
  margin-bottom: 10px;
}

.flip-bullets li {
  font-size: 11px;
  line-height: 1.42;
  color: rgba(251, 250, 246, 0.88);
  display: flex;
  gap: 8px;
  align-items: flex-start;
}

.flip-bullets li::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--mint-400);
  margin-top: 6px;
  flex-shrink: 0;
}

.flip-learn-more {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  color: var(--cream);
  text-decoration: none;
  font-size: 11px;
  font-weight: 500;
  padding: 7px 10px;
  border-radius: var(--radius-ui);
  transition: background 0.2s ease;
  text-align: center;
  line-height: 1.2;
  margin-top: auto;
}

.flip-learn-more:hover {
  background: rgba(255, 255, 255, 0.25);
}

.flip-card-orange .flip-card-back {
  background: #FFF3A3;
  color: var(--ink);
}

.flip-card-orange .flip-card-back .flip-back-title,
.flip-card-orange .flip-card-back .flip-bullets li {
  color: var(--ink);
}

.flip-card-orange .flip-card-back .flip-bullets li::before {
  background: var(--mint-800);
}

.flip-card-orange .flip-card-back .flip-learn-more {
  background: var(--mint-800);
  color: var(--cream);
}

.flip-card-orange .flip-card-back .flip-learn-more:hover {
  background: var(--mint-900);
}

.flip-card-orange .flip-card-front .flip-icon {
  background: #FEF08A;
  color: var(--warm-accent);
}

.course-card {
  background: var(--surface);
  border-radius: var(--radius-panel);
  padding: 34px 30px;
  text-decoration: none;
  color: inherit;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid var(--line);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 300px;
}

.course-card-slim {
  min-height: 220px;
  padding: 24px 20px;
}

.course-card-slim .course-title {
  font-size: 19px;
  margin-bottom: 12px;
}

.course-card-slim .course-desc {
  font-size: 13px;
  line-height: 1.55;
}

.course-card-slim .course-arrow {
  font-size: 12px;
}

.course-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--mint-50) 0%, transparent 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.course-card:hover {
  transform: translateY(-2px);
  border-color: var(--mint-200);
  box-shadow: var(--shadow-soft);
}

.course-card:hover::before { opacity: 1; }

.course-card.featured {
  background: var(--mint-800);
  color: var(--cream);
  border-color: var(--mint-800);
  grid-row: span 2;
  min-height: auto;
}

.course-card.featured:hover {
  background: var(--mint-900);
  color: var(--cream);
}

.course-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-ui);
  background: var(--mint-100);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
  color: var(--mint-800);
}

.course-card.featured .course-icon {
  background: rgba(255, 255, 255, 0.16);
  color: var(--cream);
}

.course-tag {
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--warm-accent);
  margin-bottom: 12px;
  font-weight: 500;
  font-family: var(--sans);
  font-style: normal;
  position: relative;
  z-index: 1;
}

.course-card.featured .course-tag {
  color: var(--paper);
  opacity: 0.9;
}

.course-title {
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 500;
  margin-bottom: 0;
  line-height: 1.3;
  position: relative;
  z-index: 1;
}

.course-card.featured .course-title {
  font-size: 32px;
}

.course-desc {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.7;
  margin-bottom: 0;
  padding-bottom: 24px;
  position: relative;
  z-index: 1;
}

.course-grid-slim .course-desc {
  width: 100%;
  white-space: normal;
  overflow: visible;
  text-overflow: clip;
  padding-bottom: 0;
  text-align: center;
  grid-row: 3;
}

.course-card.featured .course-desc {
  color: var(--mint-900);
  opacity: 0.85;
  font-size: 15px;
}

.course-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  position: relative;
  z-index: 1;
  transition: gap 0.25s ease;
}

.course-card:hover .course-arrow { gap: 12px; }

/* ============ TESTIMONIAL / RESULTS TRAIN ============ */
.results {
  background: var(--mint-900);
  color: var(--cream);
  border-radius: 32px;
  padding: 56px 0;
  margin-bottom: 72px;
  position: relative;
  overflow: hidden;
}

.results-header-wrap {
  padding: 0 56px; /* Internal header padding */
}

.results::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -120px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: var(--mint-800);
  opacity: 0.4;
  filter: blur(80px);
}

.results-inner {
  position: relative;
  z-index: 1;
}

.results-header {
  margin-bottom: 34px;
  max-width: 600px;
}

.results-header .section-eyebrow { color: var(--mint-400); }

.results h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(32px, 3.8vw, 44px);
  line-height: 1.2;
  color: var(--cream);
}

.results h2 em {
  font-family: var(--display);
  font-style: italic;
  font-weight: 400;
  color: var(--mint-400);
}

/* MARQUEE CAROUSEL (TRAIN EFFECT) */
.results-carousel {
  overflow: hidden;
  width: 100%;
  position: relative;
  mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
}

.results-track {
  display: flex;
  gap: 14px;
  width: max-content;
  animation: trainMove 30s linear infinite;
  padding: 0 20px;
}

.results-track:hover {
  animation-play-state: paused;
}

/* NEW Elegant Vertical Result Cards */
.result-card {
  position: relative;
  background: var(--cream);
  border-radius: var(--radius-panel);
  padding: 22px 20px;
  width: 216px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  color: var(--ink); /* Switch to light theme text */
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
  overflow: hidden;
}

/* Add a subtle top border accent */
.result-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: var(--mint-400);
}

.result-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

@keyframes trainMove {
  0% { transform: translateX(0); }
  /* Ensure this exactly offsets 1 set of cards + their gaps */
  100% { transform: translateX(calc(-50% - 10px)); } 
}

.result-school {
  font-size: 11px;
  color: var(--mint-800); /* Adjusted for light background */
  margin-bottom: 8px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.result-name {
  font-family: var(--serif);
  font-size: 19px;
  margin-bottom: 14px;
  color: var(--ink);
  font-weight: 500;
}

.result-stars {
  color: #EAB308;
  font-size: 14px;
  letter-spacing: 1px;
  margin-bottom: 10px;
  margin-top: -8px;
}

.result-score {
  font-family: var(--display);
  font-size: 32px;
  font-weight: 600;
  color: var(--mint-800);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 12px;
}

.result-detail {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.6;
  margin-top: auto; /* Push to bottom if content varies */
}

/* ============ CTA BAND ============ */
.cta-band {
  background: var(--mint-50);
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  padding: 56px 48px;
  margin-bottom: 80px;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 48px;
  align-items: center;
}

.cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
}

.cta-band-3col {
  grid-template-columns: 1.2fr 1fr 1.3fr;
  align-items: start;
}

.cta-map {
  border-radius: var(--radius-panel);
  overflow: hidden;
  height: 260px;
}

.cta-map iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

/* ============ VISIT BAND (home) ============ */
.visit-band {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 56px;
  align-items: stretch;
  background: var(--mint-50);
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  padding: 56px 48px;
  margin-bottom: 80px;
  overflow: hidden;
}

.visit-left {
  display: flex;
  flex-direction: column;
}

.visit-call-button {
  margin-top: 28px;
  align-self: center;
}

.visit-left h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.25;
  margin: 16px 0 12px;
}

.visit-left h2 em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  color: var(--mint-600);
}

.visit-left > p {
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.75;
  margin-bottom: 28px;
}

.visit-details {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--line);
}

.visit-row {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}

.visit-label {
  font-size: 11px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-mute);
  font-weight: 600;
  padding-top: 2px;
}

.visit-value {
  font-size: 14px;
  color: var(--ink);
  line-height: 1.7;
}

.visit-value strong {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.visit-map {
  border-radius: var(--radius-panel);
  overflow: hidden;
  min-height: 340px;
}

.visit-map iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.cta-band h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(28px, 3.4vw, 40px);
  line-height: 1.25;
  margin-bottom: 16px;
}

.cta-band h2 em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  color: var(--mint-600);
}

.cta-band p {
  color: var(--ink-soft);
  font-size: 16px;
  max-width: 440px;
}

.cta-info {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.cta-info-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 14px;
}

.cta-info-icon {
  width: 36px;
  height: 36px;
  background: var(--mint-100);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--mint-800);
  flex-shrink: 0;
}

.cta-info-label {
  color: var(--ink-mute);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.cta-info-value {
  color: var(--ink);
  font-weight: 500;
  font-family: var(--sans);
  font-size: 16px;
}

/* ============ FOOTER ============ */
footer {
  border-top: none;
  background: var(--mint-900);
  padding: 56px 0 20px;
  margin-top: 40px;
}

.footer-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 18px;
}

.footer-slogan {
  margin-top: 10px;
  line-height: 1.5;
}

.footer-slogan-zh {
  font-family: var(--serif);
  font-size: 14px;
  color: var(--cream);
  letter-spacing: 0.08em;
}

.footer-slogan-en {
  font-size: 11px;
  color: var(--warm-accent);
  letter-spacing: 0.02em;
}

.footer-about {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.7;
  margin-top: 20px;
  max-width: 320px;
}

.footer-registration {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
  margin-top: 14px;
  max-width: 320px;
}

.footer-registration strong {
  font-weight: 700;
  color: var(--cream);
}

.footer-contact-block {
  display: grid;
  gap: 14px;
  margin-top: 18px;
  max-width: 340px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 13px;
  line-height: 1.65;
}

.footer-contact-block div {
  display: grid;
  gap: 2px;
}

.footer-contact-block strong {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--cream);
  font-weight: 600;
}

.footer-info-icon {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  fill: none;
  stroke: var(--warm-accent);
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.footer-address-block {
  margin-bottom: 24px;
  text-align: left;
}

.footer-address-block p {
  color: rgba(255, 255, 255, 0.78);
  font-size: 13px;
  line-height: 1.65;
}

.footer-col h4 {
  font-family: var(--serif);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 18px;
  letter-spacing: 0;
  color: var(--cream);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.footer-col h4 .footer-heading-link {
  color: var(--cream);
  font: inherit;
  text-decoration: none;
}

.footer-col h4 .footer-heading-link:hover,
.footer-col h4 .footer-heading-link:focus-visible {
  color: var(--warm-accent);
}

.footer-heading-icon {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  fill: none;
  stroke: var(--warm-accent);
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  font-size: 13px;
  transition: color 0.2s ease;
}

.footer-course-icon {
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
  fill: none;
  stroke: var(--warm-accent);
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.footer-link-icon {
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
  fill: none;
  stroke: var(--warm-accent);
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.footer-col a:hover { color: var(--warm-accent); }

.footer-course-icon.course-sub-icon-fill circle {
  fill: var(--warm-accent);
}

.footer-social-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: color 0.2s ease;
}

.footer-social-link svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
  color: rgba(255, 255, 255, 0.8);
  transition: color 0.2s ease, transform 0.2s ease;
}

.footer-col .footer-social-link:hover,
.footer-col .footer-social-link:focus-visible,
.footer-col .footer-social-link:hover svg,
.footer-col .footer-social-link:focus-visible svg {
  color: #1877F2 !important;
  fill: #1877F2 !important;
}

.footer-col .footer-social-link:hover span,
.footer-col .footer-social-link:focus-visible span {
  color: #1877F2 !important;
}

.footer-col .footer-social-link:hover svg path,
.footer-col .footer-social-link:focus-visible svg path {
  fill: #1877F2 !important;
  stroke: #1877F2 !important;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1px;
  line-height: 1.2;
  text-decoration: none;
  color: var(--cream);
  margin-bottom: 12px;
}

.footer-brand-logo {
  display: none;
  height: 96px;
  width: auto;
  object-fit: contain;
  margin-bottom: 14px;
}

.footer-brand-zh {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0;
}

.footer-brand-en {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0.02em;
}

.footer-logo-link {
  display: none;
  margin-top: 0;
}

.footer-logo-img {
  height: 120px;
  width: auto;
  object-fit: contain;
  display: block;
  margin-top: 24px;
}

.footer-bottom {
  max-width: 1240px;
  margin: 0 auto;
  padding: 14px 32px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: center;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
  flex-wrap: wrap;
  gap: 16px;
}

/* ============ COURSES PAGE ============ */
.page-hero {
  padding: 32px 0 28px;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.page-hero h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(34px, 4.8vw, 56px);
  line-height: 1.15;
  margin: 16px 0;
}

.page-hero h1 em {
  font-family: var(--display);
  font-style: italic;
  font-weight: 400;
  color: var(--mint-600);
}

.page-hero p {
  font-size: 17px;
  color: var(--ink-soft);
  max-width: 560px;
  margin: 0 auto;
}

.breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--ink-mute);
}

.breadcrumb a { color: var(--ink-soft); text-decoration: none; }
.breadcrumb a:hover { color: var(--mint-800); }

/* Course detail sections */
.course-section {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 64px;
  padding: 64px 0;
  border-top: 1px solid var(--line);
  align-items: start;
}

.course-section:first-of-type { border-top: 1px solid var(--mint-200); }

.course-section-icon {
  width: 48px;
  height: 48px;
  background: var(--mint-100);
  border-radius: var(--radius-ui);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--mint-800);
  margin: 0 18px 0 0;
  vertical-align: middle;
}

.course-section-icon svg {
  width: 28px;
  height: 28px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.course-section-icon svg circle {
  fill: currentColor;
}

.course-section-icon-warm {
  background: #FEF08A;
  color: var(--warm-accent);
}

.course-meta-tag {
  display: flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  font-family: var(--display);
  font-style: italic;
  font-size: 14px;
  color: var(--mint-600);
  margin-top: 18px;
  margin-bottom: 16px;
}

.course-meta-tag::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--mint-400);
}

.course-section h2 {
  font-family: var(--serif);
  font-size: 32px;
  font-weight: 500;
  line-height: 1.25;
  margin-bottom: 16px;
}

.course-section-num {
  display: inline-block;
  font-family: var(--display);
  font-size: 64px;
  font-weight: 400;
  color: var(--mint-200);
  line-height: 1;
  letter-spacing: 0;
  vertical-align: middle;
}

.course-detail-list {
  list-style: none;
  margin: 24px 0;
}

.course-detail-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 12px 0;
  font-size: 15px;
  color: var(--ink-soft);
  border-bottom: 1px dashed var(--line);
}

.course-detail-list li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mint-400);
  margin-top: 10px;
  flex-shrink: 0;
}

.course-feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}

.course-feature {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  padding: 24px;
}

.course-feature-label {
  font-family: var(--sans);
  font-style: normal;
  font-size: 13px;
  color: var(--warm-accent);
  margin-bottom: 8px;
}

.course-feature-text {
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink);
}

/* Summer course banner */
.summer-course-banner {
  display: block;
  margin-top: 32px;
  border-radius: var(--radius-panel);
  overflow: hidden;
  position: relative;
  text-decoration: none;
  box-shadow: var(--shadow-soft);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.summer-course-banner:hover {
  transform: translateY(-3px);
  box-shadow: 0 24px 48px rgba(15, 23, 42, 0.14);
}

.summer-course-banner-img {
  width: 100%;
  height: auto;
  display: block;
}

@media (max-width: 600px) {
  .summer-course-banner-img {
    height: 220px;
    object-fit: cover;
  }
}

.summer-course-banner-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(0deg, rgba(0,39,102,0.88) 0%, transparent 100%);
  color: #fff;
  padding: 28px 20px 16px;
  font-size: 14px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: 0.02em;
}

/* AI course CTA */
.ai-course-cta {
  margin-top: 32px;
  display: flex;
  justify-content: center;
}

/* ============ ABOUT PAGE & SLIDER ============ */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  padding: 48px 0 80px;
  align-items: center;
}

.about-intro-visual {
  aspect-ratio: 4 / 5;
  background: var(--mint-400);
  border-radius: 32px;
  position: relative;
  overflow: hidden;
}

.about-fade {
  position: absolute;
  inset: 32px;
  z-index: 1;
  border-radius: 16px;
  overflow: hidden;
}

.about-fade img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0;
  animation: aboutPhotoFade 15s ease-in-out infinite;
}

.about-fade img:nth-child(2) {
  animation-delay: 5s;
}

.about-fade img:nth-child(3) {
  animation-delay: 10s;
}

@keyframes aboutPhotoFade {
  0% { opacity: 0; }
  6.66% { opacity: 1; }
  40% { opacity: 1; }
  46.66%, 100% { opacity: 0; }
}

.about-intro-visual::before {
  content: "";
  position: absolute;
  inset: 32px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 16px;
  z-index: 10;
  pointer-events: none;
}

.about-intro-year {
  position: absolute;
  bottom: 48px;
  left: 48px;
  font-family: var(--display);
  font-size: 120px;
  font-weight: 400;
  color: white;
  text-shadow: 0 4px 20px rgba(0,0,0,0.3);
  line-height: 0.9;
  letter-spacing: -0.04em;
  z-index: 10;
  pointer-events: none;
}

.about-intro-tag {
  position: absolute;
  top: 48px;
  right: 48px;
  background: var(--cream);
  padding: 12px 20px;
  border-radius: var(--radius-ui);
  font-size: 12px;
  letter-spacing: 0.08em;
  font-weight: 500;
  color: var(--mint-900);
  z-index: 10;
  pointer-events: none;
}

.about-intro-content h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(32px, 3.8vw, 44px);
  line-height: 1.25;
  margin: 24px 0;
}

.about-intro-content h2 em {
  font-family: var(--display);
  font-style: italic;
  font-weight: 400;
  color: var(--mint-600);
}

.about-intro-content p {
  font-size: 16px;
  color: var(--ink-soft);
  margin-bottom: 20px;
  line-height: 1.8;
}

/* Features grid */
.features {
  padding: 80px 0;
  border-top: 1px solid var(--line);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  padding: 32px;
  transition: all 0.3s ease;
}

.feature-card:hover {
  border-color: var(--mint-200);
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

.feature-num {
  font-family: var(--display);
  font-style: normal;
  font-size: 14px;
  color: var(--warm-accent);
  margin-bottom: 16px;
}

.feature-title {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 500;
  margin-bottom: 12px;
  line-height: 1.4;
}

.feature-text {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.7;
}

.about-contact-cta {
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  gap: 32px;
  background: var(--mint-50);
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  padding: 40px 44px;
  margin: 32px 0 80px;
  text-align: center;
}

.about-contact-cta h2 {
  font-family: var(--serif);
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 500;
  line-height: 1.25;
  margin-bottom: 12px;
}

.about-contact-cta p {
  color: var(--ink-soft);
  font-size: 15px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.about-contact-actions {
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
}

/* Contact section */
.contact {
  padding: 80px 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  border-top: 1px solid var(--line);
}

.contact-info-list {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-heading-row {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.contact-heading-row .section-title {
  margin: 0;
  flex: 1;
  text-align: left;
}

.qr-open {
  display: block;
  width: 132px;
  height: 132px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
  transform: none;
}

.contact-qr {
  width: 132px;
  height: 132px;
  object-fit: contain;
  border: 0;
  background: transparent;
  padding: 0;
  box-shadow: none;
}

.qr-open:focus-visible,
.qr-modal-close:focus-visible,
.qr-modal-backdrop:focus-visible {
  outline: 2px solid var(--mint-600);
  outline-offset: 4px;
}

.qr-modal {
  position: fixed;
  inset: 0;
  z-index: 500;
  display: none;
  place-items: center;
  padding: 24px;
}

.qr-modal.open {
  display: grid;
}

.qr-modal-backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background: rgba(0, 39, 102, 0.58);
  cursor: zoom-out;
}

.qr-modal-panel {
  position: relative;
  width: min(82vw, 420px);
  background: #fff;
  padding: 28px;
  box-shadow: 0 24px 80px rgba(0, 39, 102, 0.28);
}

.qr-modal-panel img {
  display: block;
  width: 100%;
  height: auto;
}

.qr-modal-close {
  position: absolute;
  top: -14px;
  right: -14px;
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 50%;
  background: var(--ink);
  color: var(--cream);
  font-size: 26px;
  line-height: 36px;
  cursor: pointer;
}

.contact-row {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.contact-label {
  font-family: var(--display);
  font-style: italic;
  font-size: 14px;
  color: var(--mint-600);
  padding-top: 4px;
}

.contact-value {
  font-size: 16px;
  color: var(--ink);
  line-height: 1.6;
}

.contact-value strong {
  font-family: var(--display);
  font-size: 22px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.02em;
}

.contact-map {
  background: var(--paper);
  border-radius: 24px;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-map iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.contact-page-contact {
  padding-top: 24px;
}

.contact-form-demo {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  padding: 32px;
  display: grid;
  gap: 18px;
  align-self: start;
  box-shadow: var(--shadow-soft);
}

.form-row {
  display: grid;
  gap: 8px;
}

.form-row label {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}

.form-row label[for="contactMessage"] {
  font-size: 16px;
}

.form-label-with-icon {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.form-label-icon,
.form-label-with-icon .course-sub-icon {
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
  color: var(--mint-600);
}

.form-select-with-icon,
.custom-course-select {
  position: relative;
}

.form-control-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  width: 16px;
  height: 16px;
  color: var(--mint-600);
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
  transform: translateY(-50%);
  pointer-events: none;
  z-index: 1;
}

.form-select-with-icon select {
  padding-left: 40px;
}

.custom-select-button {
  width: 100%;
  min-height: 52px;
  border: 1px solid var(--line);
  border-radius: var(--radius-ui);
  background: var(--cream);
  color: var(--ink);
  font: inherit;
  font-size: 15px;
  padding: 13px 42px 13px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  text-align: left;
}

.custom-select-value,
.custom-select-menu button {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.custom-course-select .course-sub-icon {
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
  color: var(--mint-600);
}

.custom-course-select .course-sub-icon-fill {
  fill: currentColor;
  stroke: none;
}

.custom-select-chevron {
  position: absolute;
  right: 14px;
  top: 50%;
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--ink-soft);
}

.custom-select-menu {
  position: absolute;
  left: 0;
  right: 0;
  top: calc(100% + 6px);
  z-index: 20;
  display: none;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-ui);
  background: var(--cream);
  box-shadow: var(--shadow-soft);
}

.custom-course-select.open .custom-select-menu {
  display: block;
}

.custom-select-menu button {
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 15px;
  padding: 11px 16px;
  cursor: pointer;
  text-align: left;
}

.custom-select-menu button:hover,
.custom-select-menu button[aria-selected="true"] {
  background: var(--mint-50);
}

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-ui);
  background: var(--cream);
  color: var(--ink);
  font: inherit;
  font-size: 15px;
  padding: 12px 14px;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-row textarea {
  resize: vertical;
  min-height: 132px;
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  border-color: var(--mint-600);
  box-shadow: 0 0 0 3px rgba(90, 152, 235, 0.18);
}

.contact-form-submit {
  width: 100%;
  justify-content: center;
  border: 0;
  cursor: pointer;
}

.contact-form-note {
  font-size: 13px;
  color: var(--ink-mute);
  text-align: center;
}

.contact-form-demo.submitted .contact-form-note {
  color: var(--mint-800);
  font-weight: 600;
}

.contact-form-demo.submitted .contact-form-note::before {
  content: "查詢已記錄。";
  display: block;
  margin-bottom: 4px;
}

.contact-page-map {
  margin: 0 0 88px;
  width: 100%;
  aspect-ratio: 16 / 6;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 960px) {
  .nav-menu, .nav-cta { display: none !important; }
  .menu-toggle { display: flex !important; }
  #menuToggle {
    display: flex !important;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    margin: 0;
    position: relative;
    z-index: 999;
    order: -1;
    background: var(--mint-100);
    color: var(--mint-800);
  }
  .nav-inner {
    justify-content: space-between;
    min-height: 68px;
    padding: 8px 16px;
    gap: 8px;
  }
  .nav .logo {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: auto;
    margin: 0;
    gap: 8px;
    flex: 0 0 auto;
    min-width: 0;
  }
  .nav .logo-img { width: 50px; height: 50px; }
  .nav .logo .logo-text { display: none; }
  .course-home-header-2col { grid-template-columns: 1fr; gap: 32px; }
  .course-home-highlights { grid-template-columns: 1fr 1fr; transform: none; }
  .course-showcase-panel { padding: 42px 32px 38px; }
  .course-showcase-header h2 { white-space: normal; }
  .hero { padding: 48px 0 64px; }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-content { order: 2; padding: 36px 0 20px; }
  .hero-content::before {
    left: 50%;
    right: auto;
    width: min(430px, 96vw);
    opacity: 0.15;
    transform: translate(-50%, -50%);
  }
  .hero-content::after { inset: 12px -8px; }
  .hero-visual { order: 1; aspect-ratio: 5/4; max-width: 480px; margin: 0 auto; width: 100%; }

  .stats { grid-template-columns: repeat(2, 1fr); padding: 40px 32px; gap: 28px; }
  .stat-item:not(:last-child)::after { display: none; }

  .course-grid { grid-template-columns: 1fr; }
  .course-grid-slim { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .course-card.featured { grid-row: span 1; }

  .results { padding: 48px 0; border-radius: 28px; }
  .results-header-wrap { padding: 0 32px; }

  .cta-band { grid-template-columns: 1fr; padding: 48px 32px; }
  .cta-band-3col { grid-template-columns: 1fr; }
  .cta-map { height: 220px; }
  .visit-band { grid-template-columns: 1fr; padding: 40px 32px; gap: 32px; }
  .visit-map { min-height: 240px; }

  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }

  .course-section { grid-template-columns: 1fr; gap: 32px; padding: 48px 0; }
  .course-feature-grid { grid-template-columns: 1fr; }

  .about-intro { grid-template-columns: 1fr; gap: 48px; padding: 48px 0; }
  .features-grid { grid-template-columns: 1fr; }
  .about-contact-cta { grid-template-columns: 1fr; padding: 36px 32px; }
  .about-contact-actions { justify-content: center; }
  .contact { grid-template-columns: 1fr; gap: 48px; padding: 48px 0; }
  .contact-page-contact { gap: 32px; padding-top: 20px; }
  .contact-page-contact > .contact-form-demo { order: 1; }
  .contact-page-contact > div { order: 2; }
  .contact-heading-row {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 24px;
  }
  .contact-heading-row .section-title { text-align: center; }
  .qr-open { width: 112px; height: 112px; transform: none; }
  .contact-qr { width: 112px; height: 112px; padding: 0; }
  .contact-page-map { aspect-ratio: 4 / 3; margin-bottom: 64px; }

  main { padding: 0 20px; }
  .nav-inner { padding: 8px 20px; }
}

@media (max-width: 900px) {
  .hero-cta-row {
    justify-content: center;
  }

  .course-home-button,
  .visit-call-button {
    align-self: center;
  }

  .footer-col-hide-mobile {
    display: none;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-address-block {
    text-align: center;
  }

  .footer-info-icon {
    width: 16px !important;
    height: 16px !important;
    max-width: 16px;
    max-height: 16px;
  }

  .footer-brand {
    align-items: center;
  }

  .footer-brand-logo {
    display: block;
  }

  .footer-brand-zh,
  .footer-brand-en {
    display: none;
  }

  .footer-about,
  .footer-registration,
  .footer-contact-block {
    margin-left: auto;
    margin-right: auto;
  }

  .footer-logo-link {
    display: none !important;
    width: fit-content;
    margin: 0 auto;
  }

  .footer-logo-img {
    margin-left: auto;
    margin-right: auto;
  }
}

@media (max-width: 600px) {
  .mobile-action-bar {
    display: grid;
  }

  .footer-col-hide-mobile { display: none; }
  body[data-page="home"] .courses {
    padding-top: 12px;
    padding-bottom: 28px;
  }
  .stats { grid-template-columns: 1fr; }
  .course-grid-slim {
    grid-template-columns: 1fr;
    gap: 10px;
    place-items: center;
  }
  .course-home-highlights { grid-template-columns: 1fr; text-align: center; }
  .course-showcase-panel { padding: 24px 16px 22px; border-radius: 24px; }
  .course-showcase-header { margin-bottom: 6px; display: flex; justify-content: center; }
  .course-showcase-header .section-eyebrow { margin-bottom: 6px; }
  .course-slogan {
    margin-bottom: 14px;
  }
  .course-slogan-zh { font-size: 32px; line-height: 1.16; }
  .course-slogan-en { font-size: 18px; line-height: 1.2; white-space: normal; }
  .course-slogan-rotator {
    min-height: 78px;
    margin-top: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .course-slogan-slide strong { font-size: 16px; }
  .course-slogan-slide span {
    font-size: 16px;
    line-height: 1.38;
    white-space: normal;
    text-align: center;
  }
  .course-service-note { font-size: 13px; text-align: center; margin-bottom: 12px; }
  .flip-card {
    width: min(100%, 320px);
    min-height: 220px;
  }
  .flip-card-inner { min-height: 220px; }
  .flip-card-front,
  .flip-card-back {
    align-items: center;
    justify-content: center;
    text-align: center;
  }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: center; text-align: center; }
  footer { padding-bottom: 88px; }
  .footer-logo-link {
    display: none !important;
    width: fit-content;
    margin: 0 auto;
  }
  .results { padding: 48px 0; }
  .results-header-wrap { padding: 0 24px; }
  .cta-band { padding: 36px 24px; }
  .qr-open { width: 136px; height: 136px; transform: none; }
  .contact-qr { width: 136px; height: 136px; }
  .about-contact-cta { padding: 32px 24px; margin-bottom: 56px; }
  .about-contact-actions { flex-direction: column; align-items: center; }
  .contact-form-demo { padding: 24px; }
  .contact-page-map { aspect-ratio: 4 / 5; }
  .qr-modal-panel { width: min(88vw, 360px); padding: 20px; }
}

/* mobile menu */
.mobile-menu-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 39, 102, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 290;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.mobile-menu-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: min(80vw, 340px);
  background: var(--cream);
  z-index: 300;
  display: flex;
  flex-direction: column;
  padding: 18px 20px;
  overflow-y: auto;
  transform: translateX(-100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 20px 0 40px rgba(0, 0, 0, 0.1);
}

.mobile-menu.open { transform: translateX(0); }

.mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}

.mobile-menu-logo-only {
  flex: 1;
  display: flex;
  justify-content: center;
}

.mobile-menu-logo-only .logo-img {
  height: 48px;
  width: auto;
}

.mobile-menu-header .menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 320;
}

.mobile-menu ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mobile-menu a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 16px;
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.25;
  text-decoration: none;
  color: var(--ink);
  border-radius: 12px;
  transition: background 0.2s ease;
}

.mobile-menu a:hover, .mobile-menu a.active {
  background: var(--mint-100);
  color: var(--mint-800);
}

.mobile-menu a.mobile-course-main {
  color: var(--mint-800);
  font-weight: 600;
}

.mobile-menu a.mobile-course-link {
  padding: 8px 16px 8px 32px;
  font-family: var(--sans);
  font-size: 15px;
  color: var(--ink-soft);
}

/* ============ BACK TO TOP BUTTON ============ */
.back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  background: var(--mint-800);
  color: var(--cream);
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 150;
  opacity: 0;
  pointer-events: none;
  transform: translateY(16px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.back-to-top.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--mint-900);
}

/* ============ MOBILE ACTION BAR ============ */
.mobile-action-bar {
  position: fixed;
  left: 50%;
  bottom: 16px;
  z-index: 180;
  display: none;
  grid-template-columns: repeat(3, 1fr);
  width: min(340px, calc(100vw - 28px));
  padding: 8px;
  border: 1px solid rgba(168, 203, 240, 0.55);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 18px 42px rgba(15, 23, 42, 0.18);
  transform: translate(-50%, 24px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.mobile-action-bar.show {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, 0);
}

.mobile-action-bar a {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  min-height: 50px;
  color: var(--mint-900);
  text-decoration: none;
  font-size: 11px;
  font-weight: 700;
  border-radius: 12px;
}

.mobile-action-bar a:active {
  background: var(--mint-50);
}

.mobile-action-bar svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.mobile-action-bar a:nth-child(2) svg {
  fill: currentColor;
  stroke: none;
}

@media (max-width: 600px) {
  .mobile-action-bar {
    display: grid;
  }

  .footer-col h4,
  .footer-contact-block strong {
    justify-content: center;
  }
}