/* App_design — 對齊設計稿：Serif 排版、紙張質感、蓮花／線飾／印鑑 */

@import url("https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400&family=Inter:wght@400;500;600&family=Noto+Serif+SC:wght@400;500;600;700&family=Noto+Serif+TC:wght@400;500;600;700&display=swap");

:root {
  --radius: 0.5rem;
  --background: oklch(0.965 0.06 90);
  --foreground: oklch(0.22 0.04 50);
  --card: oklch(0.992 0.014 92);
  --card-foreground: oklch(0.22 0.04 50);
  --primary: oklch(0.32 0.07 50);
  --primary-foreground: oklch(0.985 0.02 95);
  --secondary: oklch(0.94 0.05 90);
  --secondary-foreground: oklch(0.3 0.07 55);
  --muted: oklch(0.95 0.035 90);
  --muted-foreground: oklch(0.5 0.045 60);
  --accent: oklch(0.62 0.13 55);
  --accent-foreground: oklch(0.985 0.02 95);
  --border: oklch(0.86 0.05 80);
  --input: oklch(0.88 0.04 85);
  --ring: oklch(0.7 0.13 65);
  --highlight: oklch(0.93 0.09 90);
  --highlight-foreground: oklch(0.3 0.08 55);
  --ink: oklch(0.18 0.03 50);
  --seal: oklch(0.46 0.17 30);
  --gold: oklch(0.7 0.13 75);
  --gold-soft: oklch(0.82 0.09 80);
  --parchment: oklch(0.975 0.035 95);
  --parchment-deep: oklch(0.93 0.07 88);
  --destructive: oklch(0.5 0.18 30);
}

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

html {
  height: 100%;
  background:
    radial-gradient(1100px 520px at 12% -8%, oklch(0.99 0.03 95) 0%, transparent 60%),
    radial-gradient(900px 460px at 100% 8%, oklch(0.97 0.07 88) 0%, transparent 55%),
    radial-gradient(700px 400px at 50% 110%, oklch(0.96 0.06 88) 0%, transparent 55%),
    linear-gradient(180deg, oklch(0.99 0.025 95) 0%, oklch(0.965 0.06 90) 45%, oklch(0.985 0.04 95) 100%);
  background-attachment: scroll;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "kern", "liga", "calt";
  scrollbar-gutter: stable;
  scrollbar-width: thin;
  scrollbar-color: color-mix(in oklab, var(--accent) 35%, transparent) transparent;
}

html::-webkit-scrollbar {
  width: 10px;
}

html::-webkit-scrollbar-track {
  background: transparent;
}

html::-webkit-scrollbar-thumb {
  border: 2px solid transparent;
  border-radius: 999px;
  background: color-mix(in oklab, var(--accent) 38%, transparent);
  background-clip: padding-box;
}

html::-webkit-scrollbar-thumb:hover {
  background: color-mix(in oklab, var(--accent) 52%, transparent);
  background-clip: padding-box;
}

body {
  margin: 0;
  min-height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior-y: auto;
  -webkit-overflow-scrolling: touch;
  touch-action: pan-y pinch-zoom;
  background: transparent;
  color: var(--foreground);
  font-family: "Noto Serif TC", "Source Han Serif TC", "Songti TC", ui-serif, Georgia, serif;
  font-feature-settings: "kern", "liga", "calt", "palt";
}

@media (min-width: 1024px) and (prefers-reduced-motion: no-preference) {
  html {
    background-attachment: fixed;
  }
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.06;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.35  0 0 0 0 0.25  0 0 0 0 0.1  0 0 0 0.6 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  will-change: auto;
}

@media (hover: none) and (pointer: coarse) {
  body::before {
    mix-blend-mode: normal;
    opacity: 0.045;
  }
}

.font-display {
  font-family: "Cormorant Garamond", "Noto Serif TC", ui-serif, Georgia, serif;
  font-feature-settings: "liga", "dlig", "swsh";
}

.font-han {
  font-family: "Noto Serif TC", "Source Han Serif TC", ui-serif, Georgia, serif;
}

.font-sans-ui {
  font-family: "Inter", ui-sans-serif, system-ui, sans-serif;
}

.numeral {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.rule-ornament {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--accent);
}

.rule-ornament::before,
.rule-ornament::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(
    to right,
    transparent,
    color-mix(in oklab, oklch(0.62 0.13 55) 60%, transparent) 30%,
    color-mix(in oklab, oklch(0.62 0.13 55) 60%, transparent) 70%,
    transparent
  );
}

.rule-ornament .programme__section-title {
  flex-shrink: 0;
  font-family: "Noto Serif TC", serif;
  font-size: clamp(18px, 2.4vw, 21px);
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--primary);
  white-space: nowrap;
}

.paper-card {
  position: relative;
  background: linear-gradient(180deg, oklch(0.995 0.012 95) 0%, oklch(0.985 0.02 92) 100%);
  border-radius: 0.375rem;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.7) inset,
    0 0 0 1px oklch(0.88 0.04 80 / 0.6),
    0 1px 2px rgba(120, 80, 20, 0.04),
    0 12px 30px -18px rgba(120, 80, 20, 0.18);
}

.shell {
  position: relative;
  z-index: 1;
  min-height: 100vh;
}

/* ——— Header ——— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
  background: oklch(0.985 0.04 95 / 0.94);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

@media (hover: hover) and (pointer: fine) {
  .site-header {
    background: oklch(0.985 0.04 95 / 0.78);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }
}

.site-header__inner {
  max-width: 56rem;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
}

.site-header__brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.icon-lotus {
  display: block;
  color: var(--accent);
  flex-shrink: 0;
}

.site-header__lines {
  line-height: 1.25;
}

.site-header__eyebrow {
  font-family: "Noto Serif TC", serif;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--muted-foreground);
}

.site-header__title {
  margin: 0;
  font-family: "Noto Serif TC", serif;
  font-size: 14px;
  font-weight: 600;
  color: var(--foreground);
}

.site-header__aside {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-shrink: 0;
}

.site-header__registry {
  display: none;
  align-items: center;
  gap: 0.5rem;
  font-family: "Noto Serif TC", serif;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--muted-foreground);
}

.site-header__registry span:first-child {
  display: block;
  width: 2rem;
  height: 1px;
  background: color-mix(in oklab, var(--accent) 50%, transparent);
}

@media (min-width: 640px) {
  .site-header__registry {
    display: flex;
  }
}

.shell__workspace {
  width: 100%;
  margin: 0 auto;
}

.shell__main {
  width: 100%;
  min-width: 0;
  transition: flex 0.28s ease, max-width 0.28s ease;
}

/* ——— Main ——— */
.site-main {
  max-width: 56rem;
  margin: 0 auto;
  padding: 3.5rem 1.5rem 5rem;
}

@media (min-width: 640px) {
  .site-main {
    padding-top: 5rem;
  }
}

/* Hero */
.hero {
  text-align: center;
  margin-bottom: 4rem;
}

.hero__lotus-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 1.75rem;
}

.hero__lotus-wrap .icon-lotus {
  width: 3.5rem;
  height: 3.5rem;
}

.hero__anno {
  font-family: "Inter", sans-serif;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.45em;
  color: var(--accent);
}

.hero__mid-title {
  margin: 1.5rem 0 0;
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(2.75rem, 8vw, 4.5rem);
  font-weight: 300;
  font-style: italic;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.hero__yisi {
  margin-top: 0.75rem;
  font-family: "Noto Serif TC", serif;
  font-size: clamp(1.375rem, 3vw, 2rem);
  font-weight: 600;
  letter-spacing: 0.35em;
  color: var(--foreground);
}

.hero__dots {
  margin-top: 1rem;
  font-family: "Noto Serif TC", serif;
  font-size: 15px;
  letter-spacing: 0.3em;
  color: var(--muted-foreground);
}

.hero__ornament {
  display: block;
  width: 100%;
  max-width: 28rem;
  margin: 2.5rem auto 0;
  height: 1rem;
  color: color-mix(in oklab, var(--accent) 70%, transparent);
}

.hero__lead {
  margin: 2rem auto 0;
  max-width: 42rem;
  font-family: "Noto Serif TC", serif;
  font-size: 15px;
  line-height: 1.95;
  color: var(--muted-foreground);
}

/* Activity programme card */
.programme {
  margin-bottom: 3.5rem;
}

.programme__header-band {
  position: relative;
  border-bottom: 1px solid color-mix(in oklab, var(--border) 70%, transparent);
  background: linear-gradient(180deg, oklch(0.97 0.06 88) 0%, transparent 100%);
  padding: 1.75rem 2rem;
}

.programme__header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.programme__programme-label {
  font-family: "Inter", sans-serif;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--accent);
}

.programme h2 {
  margin: 0.25rem 0 0;
  font-family: "Noto Serif TC", serif;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--foreground);
}

.seal {
  display: inline-flex;
  height: 3rem;
  width: 3rem;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  background: oklch(0.46 0.17 30);
  font-family: "Noto Serif TC", serif;
  font-size: 20px;
  font-weight: 600;
  color: oklch(0.97 0.04 85);
  box-shadow:
    inset 0 0 0 2px oklch(0.97 0.04 85 / 0.5),
    0 2px 8px -2px rgba(120, 30, 10, 0.4);
}

.programme__grid {
  display: grid;
  gap: 0;
  border-top: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
}

@media (min-width: 640px) {
  .programme__grid {
    grid-template-columns: 1fr 1fr;
  }
}

.programme__cell {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
}

@media (min-width: 640px) {
  .programme__cell:first-child {
    border-right: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
  }
}

.programme__cell-label {
  font-family: "Inter", sans-serif;
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
}

.programme__cell-title {
  margin-top: 0.5rem;
  font-family: "Noto Serif TC", serif;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
}

.programme__cell-title--sub {
  margin-top: 1.25rem;
}

.programme__activity-stack {
  border-top: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
}

.programme__activity-stack .programme__cell--stacked {
  border-bottom: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
}

@media (min-width: 640px) {
  .programme__activity-stack .programme__cell--stacked {
    border-right: none;
  }
}

.programme__activity-stack .programme__venue {
  border-bottom: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
}

.programme__cell--traffic {
  border-bottom: none;
}

.q22-sessions {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid color-mix(in oklab, var(--border) 55%, transparent);
}

.q22-sessions__grid {
  display: grid;
  gap: 0.65rem;
  margin-top: 0.5rem;
}

.q22-sessions__item {
  cursor: pointer;
}

.q22-sessions__item input[type="checkbox"] {
  flex-shrink: 0;
}

.programme__cell-body {
  margin-top: 0.25rem;
  font-family: "Noto Serif TC", serif;
  font-size: 15px;
  color: var(--muted-foreground);
}

.programme__cell ul {
  margin: 0.25rem 0 0;
  padding-left: 1.2rem;
}

.programme__venue {
  border-top: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
  padding: 1.5rem 2rem;
}

.intro-section {
  scroll-margin-block: 1.25rem;
}

.intro-section--highlight {
  border-radius: 0.35rem;
  box-shadow: 0 0 0 2px color-mix(in oklab, var(--accent) 50%, transparent);
  background: color-mix(in oklab, var(--accent) 10%, white);
  transition: box-shadow 0.25s ease, background 0.25s ease;
}

#intro-section-gongxiu.intro-section--highlight {
  background: color-mix(in oklab, var(--accent) 12%, oklch(0.97 0.04 88 / 0.4));
}

#intro-section-deadline.intro-section--highlight {
  background: color-mix(in oklab, var(--accent) 14%, var(--highlight));
}

.programme__precept-band {
  border-top: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
  background: oklch(0.97 0.04 88 / 0.4);
  padding: 1.75rem 2rem;
}

.programme__precept-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin-top: 1rem;
}

.precept-item {
  display: flex;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: 0.125rem;
  border: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
  background: oklch(0.995 0.012 95);
  font-family: "Noto Serif TC", serif;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted-foreground);
}

.precept-item .numeral {
  flex-shrink: 0;
  font-size: 15px;
  color: var(--seal);
}

.programme__note {
  border-top: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
  padding: 1.5rem 2rem;
  font-family: "Noto Serif TC", serif;
  font-size: 14px;
  line-height: 1.9;
  color: var(--muted-foreground);
}

.programme__deadline {
  position: relative;
  border-top: 1px solid color-mix(in oklab, var(--accent) 40%, transparent);
  background: var(--highlight);
  padding: 2rem 2rem;
  text-align: center;
}

.programme__deadline::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  width: 6rem;
  height: 1px;
  background: color-mix(in oklab, var(--accent) 60%, transparent);
}

.programme__deadline-en {
  font-family: "Inter", sans-serif;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.45em;
  text-transform: uppercase;
  color: var(--seal);
}

.programme__deadline-display {
  margin-top: 0.75rem;
  font-family: "Cormorant Garamond", serif;
  font-size: 26px;
  font-style: italic;
  color: var(--ink);
}

.programme__deadline-zh {
  margin-top: 0.25rem;
  font-family: "Noto Serif TC", serif;
  font-size: 15px;
  letter-spacing: 0.18em;
  color: var(--foreground);
}

/* Intro step — acknowledge & register */
.intro-actions {
  margin-bottom: 3.5rem;
  padding: 2rem 1.5rem 2.25rem;
  text-align: center;
}

@media (min-width: 640px) {
  .intro-actions {
    padding: 2.25rem 2.5rem 2.5rem;
  }
}

.intro-actions__ornament {
  display: block;
  width: 10rem;
  height: 1rem;
  margin: 0 auto;
  color: color-mix(in oklab, var(--accent) 65%, transparent);
}

.intro-actions__hint {
  margin: 1.25rem auto 0;
  max-width: 36rem;
  font-family: "Noto Serif TC", serif;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted-foreground);
}

.intro-actions__buttons {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 1rem;
  margin-top: 1.75rem;
  max-width: 32rem;
  margin-left: auto;
  margin-right: auto;
}

.btn-acknowledge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.875rem;
  width: 100%;
  padding: 1rem 1.125rem;
  text-align: center;
  font-family: "Noto Serif TC", serif;
  font-size: 14px;
  line-height: 1.75;
  color: var(--foreground);
  cursor: pointer;
  border-radius: 0.125rem;
  border: 1px solid color-mix(in oklab, var(--border) 75%, transparent);
  background: oklch(0.995 0.012 95);
  box-shadow: 0 1px 2px rgba(120, 80, 20, 0.04);
  transition:
    border-color 0.15s,
    background 0.15s,
    box-shadow 0.15s;
}

.btn-acknowledge:hover {
  border-color: color-mix(in oklab, var(--accent) 55%, transparent);
  background: color-mix(in oklab, var(--highlight) 45%, transparent);
}

.btn-acknowledge.is-acknowledged {
  border-color: color-mix(in oklab, var(--seal) 55%, transparent);
  background: color-mix(in oklab, var(--highlight) 75%, transparent);
  box-shadow: inset 3px 0 0 var(--seal);
}

.btn-acknowledge__mark {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  margin-top: 0;
  border-radius: 0.125rem;
  border: 1px solid color-mix(in oklab, var(--accent) 50%, transparent);
  background: oklch(0.99 0.025 92);
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.75);
  position: relative;
}

.btn-acknowledge.is-acknowledged .btn-acknowledge__mark {
  border-color: var(--seal);
  background: var(--seal);
}

.btn-acknowledge.is-acknowledged .btn-acknowledge__mark::after {
  content: "";
  position: absolute;
  left: 0.32rem;
  top: 0.12rem;
  width: 0.35rem;
  height: 0.65rem;
  border: solid oklch(0.98 0.02 95);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.btn-acknowledge__text {
  flex: 0 1 auto;
}

.btn-register {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  width: 100%;
  padding: 1rem 2rem;
  font-family: "Noto Serif TC", serif;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.28em;
  color: var(--primary-foreground);
  border: none;
  border-radius: 0.125rem;
  cursor: pointer;
  background: linear-gradient(180deg, oklch(0.42 0.1 50) 0%, oklch(0.26 0.06 50) 100%);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.18) inset,
    0 14px 28px -14px rgba(60, 30, 5, 0.6);
  transition:
    opacity 0.15s,
    transform 0.15s,
    box-shadow 0.15s;
}

.btn-register:not(:disabled):hover {
  opacity: 0.95;
}

.btn-register:not(:disabled):active {
  transform: translateY(1px);
}

.btn-register:disabled {
  cursor: not-allowed;
  color: color-mix(in oklab, var(--muted-foreground) 85%, transparent);
  background: linear-gradient(180deg, oklch(0.94 0.03 90) 0%, oklch(0.9 0.04 88) 100%);
  box-shadow: none;
  border: 1px solid color-mix(in oklab, var(--border) 70%, transparent);
}

.btn-register .hairline {
  width: 1.25rem;
  height: 1px;
  background: color-mix(in oklab, var(--gold) 70%, transparent);
}

.btn-register:disabled .hairline {
  background: color-mix(in oklab, var(--border) 80%, transparent);
}

.intro-actions__register-block {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.intro-actions__register-hint {
  margin: 0;
  text-align: center;
  font-family: "Noto Serif TC", serif;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--seal);
}

.intro-actions__register-hint[hidden] {
  display: none;
}

#form-panel[hidden] {
  display: none !important;
}

#intro-panel[hidden] {
  display: none !important;
}

/* Welcome dialog — first visit per device */
.app-welcome {
  position: fixed;
  inset: 0;
  z-index: 100050;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  box-sizing: border-box;
}

.app-welcome[hidden] {
  display: none !important;
}

.app-welcome__backdrop {
  position: absolute;
  inset: 0;
  background: oklch(0.25 0.05 60 / 0.35);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.app-welcome__dialog {
  position: relative;
  z-index: 1;
  width: min(36rem, 100%);
  overflow: hidden;
  border-radius: 0.125rem;
  border-color: var(--gold-soft);
  background: var(--parchment);
  box-shadow:
    0 30px 80px -20px oklch(0.4 0.1 60 / 0.4),
    inset 0 0 0 1px oklch(0.85 0.12 75 / 0.4);
  animation: app-welcome-in 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes app-welcome-in {
  from {
    opacity: 0;
    transform: scale(0.96) translateY(8px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.app-welcome__top-rule {
  height: 3px;
  width: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    var(--gold) 20%,
    var(--gold) 80%,
    transparent
  );
}

.app-welcome__close {
  position: absolute;
  right: 0.85rem;
  top: 0.85rem;
  z-index: 2;
  border: none;
  background: transparent;
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  font-size: 1.35rem;
  line-height: 1;
  color: var(--ink);
  cursor: pointer;
  transition: background 0.15s ease;
}

.app-welcome__close:hover {
  background: oklch(0.2 0.02 50 / 0.06);
}

.app-welcome__body {
  padding: 2.5rem 2rem 2.25rem;
  text-align: center;
  color: var(--ink);
}

.app-welcome__ornament {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.app-welcome__ornament-line {
  display: block;
  width: 3rem;
  height: 1px;
  background: var(--gold);
}

.app-welcome__ornament-line--short {
  width: 2rem;
  background: var(--gold-soft);
}

.app-welcome__ornament-star {
  color: var(--gold);
  font-size: 0.85rem;
}

.app-welcome__eyebrow {
  margin: 0;
  font-size: 0.7rem;
  letter-spacing: 0.4em;
  color: var(--gold);
}

.app-welcome__title {
  margin: 0.85rem 0 0;
  font-size: clamp(1.75rem, 5vw, 2.35rem);
  font-weight: 600;
  line-height: 1.25;
  color: var(--foreground);
}

.app-welcome__lead {
  margin: 1.25rem auto 0;
  max-width: 22rem;
  font-size: 0.95rem;
  line-height: 1.75;
  color: oklch(0.35 0.04 60);
}

.app-welcome__cta {
  margin-top: 1.75rem;
  border: none;
  padding: 0.7rem 2.25rem;
  font-family: "Noto Serif TC", serif;
  font-size: 0.85rem;
  letter-spacing: 0.3em;
  color: var(--parchment);
  background: var(--ink);
  cursor: pointer;
  transition: opacity 0.15s ease;
}

.app-welcome__cta:hover {
  opacity: 0.9;
}

.app-welcome__footer-ornament {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.25rem;
  font-size: 0.68rem;
  letter-spacing: 0.3em;
  color: var(--gold);
}

body.app-welcome-open {
  overflow: hidden;
}

@media (prefers-reduced-motion: reduce) {
  .app-welcome__dialog {
    animation: none;
  }
}

/* Step-by-step form tour (first visit to step 2 only) */
.form-tour {
  position: fixed;
  inset: 0;
  z-index: 100000;
  pointer-events: none;
  touch-action: pan-y pinch-zoom;
}

.form-tour[hidden] {
  display: none !important;
}

.form-tour__veil {
  position: absolute;
  inset: 0;
  background: oklch(0.12 0.02 50 / 0.58);
  pointer-events: none;
  contain: strict;
  touch-action: pan-y pinch-zoom;
}

#form-tour-popover.form-tour__popover {
  position: fixed;
  z-index: 100002;
  pointer-events: auto;
  width: min(20rem, calc(100vw - 2rem));
  padding: 1rem 1.125rem 1.125rem;
  margin: 0;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.65) inset,
    0 20px 48px -16px rgba(40, 25, 5, 0.45);
}

body.form-tour-active #form-tour-popover.form-tour__popover {
  transition:
    top 0.26s cubic-bezier(0.22, 1, 0.36, 1),
    left 0.26s cubic-bezier(0.22, 1, 0.36, 1);
}

#form-tour-popover.form-tour__popover--snap {
  transition: none !important;
}

#form-tour-popover.form-tour__popover--above::after {
  content: "";
  position: absolute;
  left: 50%;
  margin-left: -6px;
  bottom: -7px;
  width: 12px;
  height: 12px;
  background: oklch(0.995 0.012 95);
  border-right: 1px solid color-mix(in oklab, var(--border) 70%, transparent);
  border-bottom: 1px solid color-mix(in oklab, var(--border) 70%, transparent);
  transform: rotate(45deg);
}

#form-tour-popover[hidden] {
  display: none !important;
}

.form-tour__title {
  margin: 0 0 0.5rem;
  font-family: "Noto Serif TC", serif;
  font-size: 17px;
  font-weight: 600;
  color: var(--foreground);
}

.form-tour__text {
  margin: 0;
  font-family: "Noto Serif TC", serif;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted-foreground);
}

.form-tour__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: flex-end;
  margin-top: 1rem;
}

.btn-form-tour-skip,
.btn-form-tour-next {
  font-family: "Noto Serif TC", serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  border-radius: 0.125rem;
  padding: 0.5rem 0.875rem;
  cursor: pointer;
}

.btn-form-tour-skip {
  color: var(--muted-foreground);
  background: transparent;
  border: 1px solid color-mix(in oklab, var(--border) 70%, transparent);
}

.btn-form-tour-skip:hover {
  color: var(--foreground);
  border-color: color-mix(in oklab, var(--accent) 45%, transparent);
}

.btn-form-tour-next {
  color: var(--primary-foreground);
  background: linear-gradient(180deg, oklch(0.42 0.1 50) 0%, oklch(0.28 0.06 50) 100%);
  border: none;
  box-shadow: 0 8px 18px -10px rgba(60, 30, 5, 0.5);
}

.btn-form-tour-next:hover {
  opacity: 0.95;
}

body.form-tour-active .site-header,
body.form-tour-active .site-footer {
  opacity: 0.35;
  pointer-events: none;
  transition: opacity 0.22s ease;
}

body.form-tour-active .site-header {
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  background: oklch(0.985 0.04 95 / 0.96);
}

body.form-tour-active .field[data-tour],
body.form-tour-active .form-intro,
body.form-tour-active .submit-wrap {
  transition: opacity 0.22s ease, box-shadow 0.22s ease;
}

body.form-tour-active .field--tour-dim {
  opacity: 0.28;
  pointer-events: none;
}

body.form-tour-active .field--tour-focus {
  position: relative;
  z-index: 100001;
  opacity: 1;
  pointer-events: auto;
  box-shadow:
    0 0 0 2px color-mix(in oklab, var(--gold) 70%, transparent),
    0 0 0 4px color-mix(in oklab, var(--accent) 28%, transparent);
}

/* Missing-field hint after 送出 validation */
.field--validation-focus {
  position: relative;
  z-index: 2;
  box-shadow:
    0 0 0 2px oklch(0.55 0.2 25),
    0 0 0 5px color-mix(in oklab, oklch(0.55 0.2 25) 22%, transparent);
}

.field--validation-focus .field__num-badge {
  border-color: oklch(0.58 0.18 25);
  background: color-mix(in oklab, oklch(0.97 0.04 25) 90%, white);
  color: oklch(0.42 0.16 25);
}

.field--validation-focus .field__title {
  color: oklch(0.38 0.15 25);
}

.field__top--has-error {
  align-items: center;
}

.field__error {
  flex: 0 1 min(17rem, 46%);
  margin: 0 0 0 auto;
  padding: 0.35rem 0 0;
  font-family: "Noto Serif TC", serif;
  font-size: 13px;
  line-height: 1.65;
  color: oklch(0.42 0.17 25);
  text-align: right;
}

@media (max-width: 720px) {
  .field__top--has-error {
    flex-wrap: wrap;
  }

  .field__error {
    flex: 1 1 100%;
    margin: 0.5rem 0 0 calc(3rem + 1.25rem);
    text-align: left;
  }
}

.field--validation-focus .input-txt[aria-invalid="true"],
.field--validation-focus .radio-card:has(input[aria-invalid="true"]) {
  border-color: oklch(0.58 0.18 25);
}

.form-intro--tour-dim,
.form-part--tour-dim {
  opacity: 0.28;
  pointer-events: none;
  transition: opacity 0.22s ease;
}

/* Form intro */
.form-intro {
  text-align: center;
  margin-bottom: 2.5rem;
}

.form-intro .icon-ornament-wide {
  margin: 0 auto;
  display: block;
  width: 11rem;
  height: 1rem;
  color: color-mix(in oklab, var(--accent) 70%, transparent);
}

.form-intro__label {
  margin-top: 1rem;
  font-family: "Inter", sans-serif;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.5em;
  color: var(--accent);
}

.form-intro h2 {
  margin: 0.5rem 0 0;
  font-family: "Noto Serif TC", serif;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--foreground);
}

/* Field (question card) */
.field {
  position: relative;
  overflow: hidden;
  border-radius: 0.375rem;
  padding: 1.5rem;
  margin-bottom: 1.75rem;
}

@media (min-width: 640px) {
  .field {
    padding: 2rem;
  }
}

.field__corner-tr,
.field__corner-bl {
  pointer-events: none;
  position: absolute;
  width: 1.5rem;
  height: 1.5rem;
}

.field__corner-tr {
  right: 1.25rem;
  top: 1.25rem;
  border-right: 1px solid color-mix(in oklab, var(--accent) 40%, transparent);
  border-top: 1px solid color-mix(in oklab, var(--accent) 40%, transparent);
}

.field__corner-bl {
  bottom: 1.25rem;
  left: 1.25rem;
  border-bottom: 1px solid color-mix(in oklab, var(--accent) 40%, transparent);
  border-left: 1px solid color-mix(in oklab, var(--accent) 40%, transparent);
}

.field__top {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.field__num-badge {
  display: flex;
  height: 3rem;
  width: 3rem;
  flex-shrink: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 9999px;
  border: 1px solid color-mix(in oklab, var(--accent) 50%, transparent);
  background: oklch(0.99 0.025 92);
  color: var(--accent);
  box-shadow: inset 0 0 0 3px rgba(255, 255, 255, 0.7);
}

.field__num-badge .numeral.no-label {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted-foreground);
  font-style: normal;
  font-family: "Noto Serif TC", serif;
}

.field__num-badge .numeral.num {
  margin-top: -2px;
  font-size: 18px;
  line-height: 1;
  color: var(--primary);
}

.field__head {
  flex: 1;
  padding-top: 2px;
}

.field__title-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.field__title {
  margin: 0;
  font-family: "Noto Serif TC", serif;
  font-size: clamp(18px, 2.5vw, 20px);
  font-weight: 600;
  line-height: 1.35;
  color: var(--foreground);
}

.badge-req {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  border-radius: 0.125rem;
  border: 1px solid color-mix(in oklab, var(--seal) 40%, transparent);
  background: oklch(0.97 0.04 85);
  padding: 0.125rem 0.375rem;
  font-family: "Noto Serif TC", serif;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--seal);
}

.badge-req::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 9999px;
  background: var(--seal);
}

.field__hint {
  margin-top: 0.75rem;
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted-foreground);
}

.field__hint strong {
  color: var(--foreground);
}

.field__body {
  padding-left: 0;
}

@media (min-width: 640px) {
  .field__body {
    padding-left: 68px;
  }
}

/* Inputs */
.input-txt {
  width: 100%;
  border-radius: 0.125rem;
  border: 0;
  border-bottom: 1px solid var(--input);
  background: transparent;
  padding: 0.625rem 0.25rem;
  font-family: "Noto Serif TC", serif;
  font-size: 15px;
  color: var(--foreground);
  outline: none;
  transition: border-color 0.15s;
}

.input-txt::placeholder {
  color: color-mix(in oklab, var(--muted-foreground) 60%, transparent);
}

.input-txt:focus {
  border-color: var(--accent);
}

textarea.input-txt {
  resize: vertical;
  min-height: 6rem;
  border: 1px solid var(--border);
  border-radius: 0.375rem;
  padding: 0.75rem 1rem;
  background: oklch(0.995 0.01 95);
}

textarea.input-txt:focus {
  box-shadow: 0 0 0 2px color-mix(in oklab, var(--accent) 30%, transparent);
}

input[type="date"].input-txt {
  border: 1px solid var(--border);
  border-radius: 0.375rem;
  padding: 0.625rem 0.75rem;
  background: oklch(0.995 0.01 95);
}

/* Radio cards */
.radio-grid {
  display: grid;
  gap: 0.5rem;
}

.q11-body {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.q11-follow {
  margin-top: 0.25rem;
  padding: 0.85rem 0 0 1rem;
  border-left: 2px solid color-mix(in oklab, var(--accent) 45%, transparent);
}

.q11-follow[hidden] {
  display: none;
}

.q11-follow__label {
  display: block;
  margin: 0 0 0.5rem;
  font-family: "Noto Serif TC", serif;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--muted-foreground);
}

.q11-sub {
  margin-top: 0.25rem;
}

.q11-other {
  margin-top: 0.65rem;
}

.q11-other[hidden] {
  display: none;
}

.radio-card {
  display: flex;
  cursor: pointer;
  align-items: center;
  gap: 0.75rem;
  border-radius: 0.125rem;
  border: 1px solid color-mix(in oklab, var(--border) 70%, transparent);
  background: oklch(0.995 0.012 95);
  padding: 0.75rem 1rem;
  font-family: "Noto Serif TC", serif;
  font-size: 15px;
  color: var(--foreground);
  transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
}

.radio-card:hover {
  border-color: color-mix(in oklab, var(--accent) 60%, transparent);
  background: color-mix(in oklab, var(--highlight) 50%, transparent);
}

.radio-card:has(input:checked) {
  border-color: var(--accent);
  background: color-mix(in oklab, var(--highlight) 70%, transparent);
  box-shadow: inset 3px 0 0 var(--seal);
}

.radio-card input {
  accent-color: oklch(0.42 0.13 55);
  width: 1rem;
  height: 1rem;
}

/* Q5 upload */
.q5-panel {
  margin-top: 1.25rem;
  border-radius: 0.125rem;
  border: 1px dashed color-mix(in oklab, var(--accent) 40%, transparent);
  background: oklch(0.99 0.02 95);
  padding: 1.25rem;
}

.q5-panel__label {
  margin-bottom: 0.75rem;
  font-family: "Inter", sans-serif;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--accent);
}

.q5-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn-file,
.btn-cam {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1rem;
  font-family: "Noto Serif TC", serif;
  font-size: 14px;
  font-weight: 600;
  border-radius: 0.375rem;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--foreground);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.btn-file:hover {
  background: var(--secondary);
}

.btn-cam {
  border-color: color-mix(in oklab, var(--accent) 45%, transparent);
  background: linear-gradient(180deg, oklch(0.99 0.03 95) 0%, oklch(0.93 0.09 90) 100%);
  color: var(--primary);
}

.btn-clear {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--muted-foreground);
  padding: 0.625rem 0.75rem;
  font-size: 14px;
  border-radius: 0.375rem;
  cursor: pointer;
}

.btn-clear:hover {
  color: var(--foreground);
}

.q5-preview {
  margin-top: 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem;
  border-radius: 0.375rem;
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--secondary) 40%, transparent);
}

.q5-preview img {
  width: 6rem;
  height: 6rem;
  object-fit: cover;
  border-radius: 0.375rem;
  border: 1px solid var(--border);
}

/* Q5 live camera (getUserMedia) */
.q5-camera-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  box-sizing: border-box;
  overscroll-behavior: contain;
  touch-action: manipulation;
}

body.is-camera-open {
  overflow: hidden;
  overscroll-behavior: none;
}

.q5-camera-modal[hidden] {
  display: none !important;
}

.q5-camera-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.72);
  cursor: pointer;
}

.q5-camera-modal__dialog {
  position: relative;
  width: 100%;
  max-width: min(100vw - 2rem, 28rem);
  padding: 1.25rem;
  border-radius: 0.75rem;
  background: var(--card);
  border: 1px solid var(--border);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.22);
}

.q5-camera-modal__hint {
  margin: 0 0 1rem;
  font-family: "Noto Serif TC", serif;
  font-size: 14px;
  line-height: 1.55;
  color: var(--foreground);
  text-align: center;
}

#q5-camera-video {
  display: block;
  width: 100%;
  max-height: min(60vh, 24rem);
  border-radius: 0.5rem;
  background: #0f172a;
  object-fit: cover;
}

.q5-camera-modal__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-top: 1.25rem;
}

/* Review step */
.review-panel[hidden] {
  display: none !important;
}

#survey-form.is-review-hidden {
  display: none;
}

.review-intro {
  text-align: center;
  margin-bottom: 2rem;
}

.review-intro__ornament {
  display: block;
  width: 10rem;
  height: 1rem;
  margin: 0 auto;
  color: color-mix(in oklab, var(--accent) 65%, transparent);
}

.review-intro h2 {
  margin: 1rem 0 0;
  font-family: "Noto Serif TC", serif;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--foreground);
}

.review-intro__hint {
  margin: 0.75rem auto 0;
  max-width: 36rem;
  font-family: "Noto Serif TC", serif;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted-foreground);
}

.review {
  padding: 1.5rem 1.25rem 1.75rem;
  margin-bottom: 2rem;
}

@media (min-width: 640px) {
  .review {
    padding: 2rem 2.25rem 2.25rem;
  }
}

.review__list {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.review__list > .review-item {
  display: grid;
  gap: 0.35rem;
  padding: 1rem 0;
  border-bottom: 1px solid color-mix(in oklab, var(--border) 55%, transparent);
}

.review__list .review-item:first-child {
  padding-top: 0;
}

.review__list .review-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.review-item__label {
  margin: 0;
  font-family: "Noto Serif TC", serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--accent);
}

.review-item__value {
  margin: 0;
  font-family: "Noto Serif TC", serif;
  font-size: 15px;
  line-height: 1.75;
  color: var(--foreground);
  white-space: pre-wrap;
  word-break: break-word;
}

.review-item__value.is-empty {
  color: var(--muted-foreground);
  font-style: italic;
}

.review__photo {
  text-align: center;
}

.review__photo--lead {
  margin: 0 0 1.25rem;
  padding: 0 0 1.25rem;
  border-bottom: 1px solid color-mix(in oklab, var(--border) 55%, transparent);
}

.review__photo[hidden] {
  display: none !important;
}

.review__photo-label {
  font-family: "Noto Serif TC", serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.review__photo img {
  width: 8.5rem;
  height: 8.5rem;
  object-fit: cover;
  border-radius: 0.375rem;
  border: 1px solid color-mix(in oklab, var(--border) 70%, transparent);
  box-shadow: 0 4px 12px -4px rgba(120, 80, 20, 0.2);
}

.review__photo--lead + .review__list > .review-item:first-child {
  padding-top: 0;
}

.review-actions {
  display: flex;
  flex-direction: column-reverse;
  align-items: stretch;
  gap: 0.75rem;
  max-width: 28rem;
  margin: 0 auto;
}

@media (min-width: 520px) {
  .review-actions {
    flex-direction: row;
    justify-content: center;
    max-width: none;
  }
}

.btn-review-back,
.btn-review-confirm {
  font-family: "Noto Serif TC", serif;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.2em;
  border-radius: 0.125rem;
  cursor: pointer;
  padding: 1rem 1.75rem;
  transition: opacity 0.15s, background 0.15s;
}

.btn-review-back {
  flex: 1;
  max-width: 14rem;
  margin: 0 auto;
  color: var(--foreground);
  background: oklch(0.995 0.012 95);
  border: 1px solid color-mix(in oklab, var(--border) 75%, transparent);
  box-shadow: 0 1px 2px rgba(120, 80, 20, 0.04);
}

.btn-review-back:hover {
  background: color-mix(in oklab, var(--highlight) 50%, transparent);
  border-color: color-mix(in oklab, var(--accent) 50%, transparent);
}

.btn-review-confirm {
  flex: 1;
  max-width: 16rem;
  margin: 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  color: var(--primary-foreground);
  border: none;
  background: linear-gradient(180deg, oklch(0.42 0.1 50) 0%, oklch(0.26 0.06 50) 100%);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.18) inset,
    0 14px 28px -14px rgba(60, 30, 5, 0.6);
}

.btn-review-confirm:hover:not(:disabled) {
  opacity: 0.95;
}

.btn-review-confirm:disabled,
.btn-review-back:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-review-confirm .hairline {
  width: 1.25rem;
  height: 1px;
  background: color-mix(in oklab, var(--gold) 70%, transparent);
}

.review-actions__hint {
  margin: 1rem 0 2rem;
  text-align: center;
  font-family: "Noto Serif TC", serif;
  font-size: 12px;
  color: var(--muted-foreground);
}

/* Submit */
.submit-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  padding-top: 2rem;
}

.submit-wrap .icon-ornament-wide {
  width: 10rem;
  height: 1rem;
  color: color-mix(in oklab, var(--accent) 60%, transparent);
}

.btn-submit {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1rem 3rem;
  font-family: "Noto Serif TC", serif;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.32em;
  color: var(--primary-foreground);
  border: none;
  border-radius: 0.125rem;
  cursor: pointer;
  background: linear-gradient(180deg, oklch(0.42 0.1 50) 0%, oklch(0.26 0.06 50) 100%);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.18) inset,
    0 14px 28px -14px rgba(60, 30, 5, 0.6);
  transition: opacity 0.15s;
}

.btn-submit:hover {
  opacity: 0.95;
}

.btn-submit .hairline {
  width: 1.5rem;
  height: 1px;
  background: color-mix(in oklab, var(--gold) 70%, transparent);
}

.submit-hint {
  font-family: "Noto Serif TC", serif;
  font-size: 12px;
  color: var(--muted-foreground);
}

/* Alert submitted */
.alert-received {
  margin-bottom: 2rem;
  border-radius: 0.125rem;
  border: 1px solid color-mix(in oklab, var(--accent) 40%, transparent);
  background: color-mix(in oklab, var(--highlight) 60%, transparent);
  padding: 1.25rem 1.5rem;
  text-align: center;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.alert-received__en {
  font-family: "Inter", sans-serif;
  font-size: 10px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--accent);
}

.alert-received__zh {
  margin-top: 0.25rem;
  font-family: "Noto Serif TC", serif;
  font-size: 16px;
  font-weight: 600;
  color: var(--foreground);
}

.alert-received__sub {
  margin-top: 0.5rem;
  font-family: "Noto Serif TC", serif;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--foreground);
}

.site-main--success-only #intro-panel,
.site-main--success-only #form-panel,
.site-main--success-only #submit-error {
  display: none !important;
}

.site-main--success-only #alert-received {
  margin: 3rem auto 4rem;
  max-width: 28rem;
}

.save-responses,
.email-copy {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid color-mix(in oklab, var(--accent) 25%, transparent);
  text-align: left;
}

.save-responses__title {
  margin: 0 0 1rem;
  font-family: "Noto Serif TC", serif;
  font-size: 15px;
  font-weight: 600;
  text-align: center;
  color: var(--foreground);
  letter-spacing: 0.02em;
}

.save-responses__choices {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.save-responses__choice {
  width: 100%;
  margin: 0;
  padding: 0.65rem 1rem;
  border: 1px solid color-mix(in oklab, var(--accent) 35%, transparent);
  border-radius: 0.125rem;
  background: color-mix(in oklab, var(--card) 90%, transparent);
  font-family: "Noto Serif TC", serif;
  font-size: 14px;
  font-weight: 500;
  color: var(--foreground);
  text-align: left;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.save-responses__choice:hover:not(:disabled) {
  background: color-mix(in oklab, var(--highlight) 70%, transparent);
  border-color: color-mix(in oklab, var(--accent) 55%, transparent);
}

.save-responses__choice:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.save-responses__panel,
.email-copy__panel {
  margin-top: 0.85rem;
}

.email-copy__row {
  display: flex;
  gap: 0.5rem;
  align-items: stretch;
}

.email-copy__input {
  flex: 1;
  min-width: 0;
  margin: 0;
}

.email-copy__send {
  flex-shrink: 0;
  padding: 0.55rem 1rem;
  border: none;
  border-radius: 0.125rem;
  font-family: "Noto Serif TC", serif;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  background: var(--accent);
  color: #fff;
  white-space: nowrap;
}

.email-copy__send:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.email-copy__msg {
  margin: 0.65rem 0 0;
  font-size: 13px;
  line-height: 1.45;
  color: var(--muted-foreground);
}

.email-copy__msg--ok {
  color: oklch(0.38 0.12 145);
}

.email-copy__msg--err {
  color: oklch(0.42 0.14 25);
}

.pdf-export-host {
  position: fixed;
  left: -12000px;
  top: 0;
  width: 210mm;
  pointer-events: none;
  z-index: -1;
}

/* Footer */
.site-footer {
  position: relative;
  border-top: 1px solid color-mix(in oklab, var(--border) 60%, transparent);
  background: oklch(0.985 0.04 95 / 0.5);
  padding: 2.5rem 1.5rem;
}

.site-footer__inner {
  max-width: 56rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
}

.site-footer .icon-lotus {
  width: 1.5rem;
  height: 1.5rem;
  color: color-mix(in oklab, var(--accent) 70%, transparent);
}

.site-footer__zh {
  font-family: "Noto Serif TC", serif;
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--muted-foreground);
}

.site-footer__en {
  font-family: "Inter", sans-serif;
  font-size: 10px;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: color-mix(in oklab, var(--muted-foreground) 80%, transparent);
}

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

.ticket-hint-box {
  border-radius: 0.125rem;
  border: 1px solid color-mix(in oklab, var(--border) 70%, transparent);
  background: color-mix(in oklab, var(--secondary) 40%, transparent);
  padding: 1.25rem;
  margin-bottom: 1rem;
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted-foreground);
}

.ticket-hint-box h4 {
  margin: 0 0 0.5rem;
  font-size: 14px;
  color: var(--foreground);
}

.ticket-hint-box ol,
.ticket-hint-box ul {
  margin: 0.35rem 0 0;
  padding-left: 1.25rem;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}