/* ── CSS 變數（設計系統）────────────────────────── */
:root {
  --bg:           #f7f1e8;
  --surface:      #ffffff;
  --surface-warm: #fdf3e6;
  --surface-soft: rgba(255, 252, 247, 0.88);
  --ink:          #3a2e23;
  --ink-muted:    #7a6a5a;
  --border:       #ece1cd;
  --line-strong:  rgba(220, 201, 173, 0.82);
  --peach:        #e8a87c;
  --peach-deep:   #c97a5a;
  --sage:         #7d9b7c;
  --accent:       #B68A36;

  --radius-sm:   8px;
  --radius-md:   12px;
  --radius-lg:   18px;
  --radius-xl:   28px;
  --shadow-sm:   0 1px 4px rgba(58,46,35,0.08);
  --shadow-md:   0 4px 16px rgba(58,46,35,0.10);
  --shadow-lg:   0 24px 56px rgba(107,78,53,0.10);
  --transition:  0.2s ease;
  --page-max:    1240px;
}

/* ── 基礎重設 ─────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; }

body {
  font-family: 'Noto Sans TC', 'PingFang TC', 'Microsoft JhengHei', sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(223,154,113,0.16), transparent 32%),
    radial-gradient(circle at right 10% top 12%, rgba(127,154,116,0.12), transparent 26%),
    linear-gradient(180deg, #fbf7f1 0%, var(--bg) 45%, #f4ecdf 100%);
  min-height: 100vh;
  line-height: 1.7;
}

h1, h2, h3, .brand {
  font-family: 'Noto Serif TC', serif;
}

input[type="number"] {
  font-variant-numeric: tabular-nums;
}

code {
  font-family: 'Noto Sans TC', monospace;
  font-size: 0.9em;
  background: rgba(232, 168, 124, 0.14);
  color: var(--peach-deep);
  border-radius: 4px;
  padding: 1px 5px;
}

/* ── Layout ──────────────────────────────────── */
.container {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Topbar ──────────────────────────────────── */
.topbar {
  background: rgba(255, 252, 247, 0.84);
  border-bottom: 1px solid rgba(220, 201, 173, 0.72);
  box-shadow: 0 14px 38px rgba(107,78,53,0.08);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.topbar-inner {
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: linear-gradient(135deg, #efbb95 0%, #d68a63 100%);
  color: #fffaf4;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Noto Serif TC', serif;
  font-size: 1.3rem;
  font-weight: 700;
  box-shadow: 0 10px 20px rgba(201,122,90,0.22);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-title {
  font-size: 1.22rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.15;
}

.brand-subtitle {
  font-size: 0.78rem;
  color: var(--ink-muted);
  letter-spacing: 0.02em;
}

.year-selector {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,0.76);
  border: 1px solid rgba(220, 201, 173, 0.72);
  color: var(--ink-muted);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.6);
}

.year-selector select {
  min-width: 110px;
  border: none;
  background: transparent;
  color: var(--ink);
  font: inherit;
  outline: none;
}

.topbar-nav {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: nowrap;
  margin-left: auto;
  order: 3;
  flex-shrink: 0;
}

.topbar-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.88rem;
  color: var(--ink-muted);
  text-decoration: none;
  transition: color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition);
  border-radius: 999px;
  border: 1px solid transparent;
  padding: 8px 14px;
  background: rgba(255,255,255,0.35);
  white-space: nowrap;
}

.topbar-nav a:hover {
  color: var(--accent);
  background: rgba(223,154,113,0.18);
  border-color: rgba(223,154,113,0.22);
  transform: translateY(-1px);
}

.runtime-status {
  min-height: 38px;
  display: none;
  align-items: center;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 0.8rem;
  line-height: 1.4;
  border: 1px solid transparent;
  order: 4;
  flex: 1 1 100%;
}

.runtime-status.visible {
  display: inline-flex;
}

.runtime-status[data-state="loading"] {
  background: rgba(232,168,124,0.14);
  border-color: rgba(232,168,124,0.28);
  color: var(--peach-deep);
}

.runtime-status[data-state="error"] {
  background: rgba(192,57,43,0.08);
  border-color: rgba(192,57,43,0.24);
  color: #a93226;
}

/* ── Step 進度條 ──────────────────────────────── */
.step-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 8px;
  max-width: var(--page-max);
  margin: 24px auto 8px;
  background: rgba(255,255,255,0.8);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 10px 28px rgba(107,78,53,0.06);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.step-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  flex: 1;
}

.step-dot {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-muted);
  position: relative;
  transition: background var(--transition), border-color var(--transition);
}

.step-item.active .step-dot {
  background: var(--peach);
  border-color: var(--peach);
  color: #fff;
}

.step-item.done .step-dot {
  background: var(--sage);
  border-color: var(--sage);
  color: transparent;
}

.step-item.done .step-dot::after {
  content: '✓';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.92rem;
}

.step-label {
  font-size: 0.78rem;
  color: var(--ink-muted);
  white-space: nowrap;
}

.step-item.active .step-label { color: var(--ink); font-weight: 500; }

.step-connector {
  flex: 0 0 48px;
  height: 2px;
  background: linear-gradient(90deg, rgba(232,168,124,0.2) 0%, rgba(182,138,54,0.5) 50%, rgba(125,155,124,0.22) 100%);
  margin-bottom: 22px;
  border-radius: 999px;
}

/* ── 卡片 ────────────────────────────────────── */
.card {
  background: rgba(255,252,247,0.8);
  border: 1px solid rgba(220,201,173,0.72);
  border-radius: var(--radius-lg);
  box-shadow: 0 18px 44px rgba(107,78,53,0.08);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 24px;
}

.card + .card { margin-top: 16px; }

.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

/* ── 表單輸入 ─────────────────────────────────── */
.warm-input {
  width: 100%;
  padding: 10px 14px;
  background: var(--surface-warm);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--ink);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.warm-input:hover:not(:read-only):not(:focus) {
  border-color: rgba(232, 168, 124, 0.55);
}

.warm-input:focus {
  border-color: var(--peach);
  box-shadow: 0 0 0 3px rgba(232,168,124,0.18);
}

.warm-input:read-only {
  opacity: 0.65;
  cursor: not-allowed;
}

.warm-input.error {
  border-color: #c0392b;
  box-shadow: 0 0 0 3px rgba(192,57,43,0.12);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}

.field-label {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--ink);
}

.field-label .required { color: #c0392b; margin-left: 2px; }

.field-hint {
  font-size: 0.8rem;
  color: var(--ink-muted);
}

.field-error {
  font-size: 0.8rem;
  color: #c0392b;
  display: none;
}

.field-error.visible { display: block; }

.field-hint { font-size: 0.8rem; margin-top: 4px; display: none; }
.field-hint.visible { display: block; }
.field-hint.hint-warning { color: var(--peach-deep); }
.field-hint.hint-muted { color: var(--ink-muted); }

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

/* ── 按鈕 ────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 28px;
  background: var(--peach);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  white-space: nowrap;
}

.btn-primary:hover:not(:disabled) { background: var(--peach-deep); }
.btn-primary:active:not(:disabled) { transform: scale(0.98); }
.btn-primary:disabled { opacity: 0.55; cursor: not-allowed; }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  background: var(--surface);
  color: var(--ink-muted);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
}

.btn-secondary:hover { background: var(--surface-warm); border-color: var(--peach); }

/* ── Tooltip ─────────────────────────────────── */
.tooltip-wrapper {
  position: relative;
  display: inline-flex;
}

.tooltip-icon {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--surface-warm);
  border: 1px solid var(--border);
  color: var(--ink-muted);
  font-size: 0.7rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
}

.tooltip-body {
  display: none;
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--ink);
  color: #fff;
  font-size: 0.78rem;
  line-height: 1.5;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  z-index: 200;
  pointer-events: none;
  max-width: 260px;
  white-space: normal;
}

.tooltip-wrapper:hover .tooltip-body,
.tooltip-wrapper:focus-within .tooltip-body {
  display: block;
}

/* ── 通知/提示區塊 ───────────────────────────── */
.notice {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  line-height: 1.6;
}

.notice-info { background: #e8f4fd; border-left: 3px solid #3498db; }
.notice-ok { background: #edf8f1; border-left: 3px solid var(--sage); }
.notice-warn { background: #fef9e7; border-left: 3px solid var(--accent); }
.notice-success { background: #eafaf1; border-left: 3px solid var(--sage); }

/* ── Category Selector ────────────────────────── */
.step-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(240px, 0.9fr);
  gap: 18px;
  margin-bottom: 22px;
}

.hero-copy,
.hero-callout,
.category-shell-card {
  background: rgba(255, 251, 245, 0.86);
  border: 1px solid rgba(220, 201, 173, 0.78);
  border-radius: 22px;
  box-shadow: 0 20px 48px rgba(107,78,53,0.08);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.hero-copy {
  padding: 24px 26px;
}

.hero-eyebrow {
  display: inline-flex;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(232,168,124,0.16);
  color: var(--peach-deep);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  margin-bottom: 12px;
}

.hero-title {
  font-size: 1.7rem;
  line-height: 1.35;
  margin-bottom: 12px;
}

.hero-text {
  color: var(--ink-muted);
  font-size: 0.95rem;
}

.hero-callout {
  padding: 22px;
  background:
    radial-gradient(circle at top right, rgba(232,168,124,0.18), transparent 32%),
    linear-gradient(180deg, rgba(255,250,243,0.94) 0%, rgba(253,243,230,0.86) 100%);
}

.hero-callout-tag,
.category-shell-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.hero-callout-tag,
.category-shell-badge[data-tone="primary"] {
  background: rgba(125,155,124,0.16);
  color: #557053;
}

.category-shell-badge[data-tone="secondary"] {
  background: rgba(232,168,124,0.18);
  color: var(--peach-deep);
}

.category-shell-badge[data-tone="supporting"] {
  background: rgba(182,138,54,0.14);
  color: #856113;
}

.hero-callout-title {
  font-family: 'Noto Serif TC', serif;
  font-size: 1.35rem;
  margin: 16px 0 8px;
}

.hero-callout p {
  color: var(--ink-muted);
  font-size: 0.9rem;
}

.category-selector {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.category-card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.category-card:hover {
  border-color: var(--peach);
  background: var(--surface-warm);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.category-card.active {
  border-color: var(--peach);
  background: var(--surface-warm);
  box-shadow: 0 0 0 2px var(--peach);
  border-left: 3px solid var(--peach-deep);
}

.featured-card {
  grid-column: 1 / -1;
  min-height: 158px;
  align-items: flex-start;
  padding: 24px;
  background:
    radial-gradient(circle at right top, rgba(125,155,124,0.2), transparent 28%),
    linear-gradient(135deg, rgba(255,252,247,0.98) 0%, rgba(250,241,227,0.95) 100%);
  border-color: rgba(125,155,124,0.35);
  box-shadow: 0 24px 56px rgba(107,78,53,0.12);
}

.featured-card:hover,
.featured-card.active {
  border-color: rgba(125,155,124,0.58);
  box-shadow: 0 28px 62px rgba(107,78,53,0.14);
}

.supporting-card {
  grid-column: 1 / -1;
  opacity: 0.96;
}

.category-ribbon {
  position: absolute;
  top: 16px;
  right: 16px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(125,155,124,0.14);
  color: #557053;
  font-size: 0.76rem;
  font-weight: 700;
}

.category-icon {
  font-size: 1.8rem;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  border-radius: 50%;
}

.category-info {
  flex: 1;
}

.category-title {
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 4px;
}

.category-desc {
  font-size: 0.85rem;
  color: var(--ink-muted);
  line-height: 1.4;
}

.category-meta {
  margin-top: 10px;
  font-size: 0.82rem;
  color: var(--ink);
  opacity: 0.78;
}

.category-action {
  align-self: center;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--sage);
  white-space: nowrap;
}

.category-tag {
  display: inline-block;
  font-size: 0.75rem;
  padding: 2px 8px;
  background: var(--border);
  border-radius: 4px;
  margin-top: 8px;
  color: var(--ink-muted);
}

/* Sub categories for 9A/9B */
.category-group {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sub-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 12px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
  padding-left: 16px;
  border-left: 2px solid var(--border);
  margin-left: 24px;
}

.category-group.expanded .sub-categories {
  max-height: 500px;
  margin-top: 8px;
  margin-bottom: 16px;
  padding-top: 4px; /* sub-card hover translateY(-3px) 需要上方預留空間，避免被 overflow:hidden 裁掉頂部 border */
}

.category-group.expanded .expand-arrow {
  transform: rotate(180deg);
}

.expand-arrow {
  transition: transform 0.3s ease;
  color: var(--ink-muted);
  font-size: 0.8rem;
}

.sub-card {
  padding: 16px;
}

/* Help Section */
.help-section {
  margin-top: 32px;
}

.help-section details {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.help-section summary {
  padding: 12px 16px;
  cursor: pointer;
  font-weight: 500;
  color: var(--ink-muted);
  outline: none;
}

.help-content {
  padding: 0 16px 16px;
  font-size: 0.88rem;
  color: var(--ink-muted);
}

.help-content ul {
  padding-left: 20px;
}

.help-content li {
  margin-bottom: 8px;
}

.category-shell-card {
  margin-bottom: 18px;
  padding: 18px 20px;
}

.category-shell-header {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.category-shell-header h2 {
  font-family: 'Noto Serif TC', serif;
  font-size: 1.25rem;
  margin-bottom: 6px;
}

.category-shell-header p,
.category-shell-hint {
  color: var(--ink-muted);
  font-size: 0.9rem;
}

.category-shell-hint {
  margin-top: 10px;
}

.calc-results {
  background: var(--bg);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-top: 16px;
}

.calc-runtime-note {
  margin-bottom: 14px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.86rem;
  line-height: 1.65;
  background: rgba(232,168,124,0.10);
  border: 1px solid rgba(232,168,124,0.22);
  color: var(--peach-deep);
}

.calc-runtime-note[data-state="ready"] {
  display: none;
}

.calc-runtime-note[data-state="error"] {
  background: rgba(192,57,43,0.08);
  border-color: rgba(192,57,43,0.18);
  color: #a93226;
}

.calc-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 0.95rem;
  color: var(--ink-muted);
}

.calc-row.highlight {
  border-top: 1px solid var(--border);
  margin-top: 8px;
  padding-top: 12px;
  font-weight: 700;
  color: var(--ink);
  font-size: 1.1rem;
}

.calc-row.highlight span:last-child {
  color: var(--peach-deep);
}

/* ── ID Upload ───────────────────────────────── */
.upload-dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  background: var(--surface-warm);
}

.upload-dropzone:hover {
  border-color: var(--peach);
  background: var(--surface);
}

.upload-dropzone.is-busy {
  border-color: rgba(201,122,90,0.45);
  background: rgba(255,255,255,0.72);
  cursor: progress;
  opacity: 0.88;
}

.upload-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--ink-muted);
}

.upload-icon {
  font-size: 2rem;
}

.upload-hint {
  font-size: 0.75rem;
  color: var(--ink-muted);
  max-width: 280px;
}

.btn-remove-img {
  position: absolute;
  top: -10px;
  right: -10px;
  width: 24px;
  height: 24px;
  background: #c0392b;
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  box-shadow: var(--shadow-sm);
}

.crop-modal {
  position: fixed;
  inset: 0;
  z-index: 220;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(34, 28, 22, 0.62);
  backdrop-filter: blur(8px);
}

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

.crop-modal-card {
  width: min(920px, calc(100vw - 24px));
  max-height: min(calc(100vh - 24px), 760px);
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: rgba(255, 250, 244, 0.96);
  border: 1px solid rgba(220, 201, 173, 0.78);
  border-radius: 24px;
  box-shadow: 0 32px 80px rgba(34, 28, 22, 0.24);
  padding: 20px;
  scrollbar-gutter: stable;
}

.crop-modal-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}

.crop-modal-eyebrow {
  display: inline-flex;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(232,168,124,0.16);
  color: var(--peach-deep);
  font-size: 0.76rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.crop-modal-header h2 {
  font-size: 1.32rem;
  margin-bottom: 6px;
}

.crop-helper-text {
  color: var(--ink-muted);
  font-size: 0.88rem;
}

.crop-auto-hint {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(125,155,124,0.16);
  color: #557053;
  font-size: 0.8rem;
  font-weight: 700;
}

.crop-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.28fr) minmax(280px, 0.72fr);
  gap: 16px;
  align-items: stretch;
}

.crop-preview-shell {
  display: flex;
  flex-direction: column;
  align-items: center;
  border-radius: 20px;
  padding: 14px;
  background: linear-gradient(180deg, #fffdf9 0%, #f7efe5 100%);
  border: 1px solid rgba(220, 201, 173, 0.72);
  flex: 0 1 auto;
  min-height: 0;
}

.crop-preview-caption {
  width: 100%;
  margin-bottom: 12px;
  color: var(--ink-muted);
  font-size: 0.84rem;
  line-height: 1.6;
}

.crop-preview-shell canvas {
  display: block;
  width: auto;
  max-width: 100%;
  height: auto;
  max-height: min(38vh, 420px);
  border-radius: 16px;
  background: #fff;
}

.crop-control-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  align-content: start;
}

.crop-control {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) auto;
  gap: 8px 12px;
  align-items: center;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255,255,255,0.68);
  border: 1px solid rgba(220, 201, 173, 0.72);
}

.crop-control span:first-child {
  font-weight: 600;
  font-size: 0.88rem;
}

.crop-control span:last-of-type {
  color: var(--ink-muted);
  font-size: 0.84rem;
  min-width: 2.6em;
  text-align: right;
}

.crop-control input {
  grid-column: 2;
  grid-row: 1;
  width: 100%;
}

.crop-modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: auto;
  padding-top: 10px;
  position: sticky;
  bottom: 0;
  background: linear-gradient(180deg, rgba(255,250,244,0) 0%, rgba(255,250,244,0.96) 24%);
}

body.modal-open {
  overflow: hidden;
}

/* ── Preview & A4 ───────────────────────────── */
.preview-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  background: var(--surface);
  padding: 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.control-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.preview-container {
  display: flex;
  justify-content: center;
  overflow: auto;
  padding: 20px;
  background: #525659; /* PDF 預覽背景色 */
  border-radius: var(--radius-md);
  min-height: 600px;
}

.preview-document {
  display: flex;
  flex-direction: column;
  gap: 24px;
  transform-origin: top center;
}

.a4-page {
  width: 794px; /* A4 96dpi */
  height: 1123px;
  flex-shrink: 0; /* 防止父層 flex column 垂直壓縮塌陷，保持完整 A4 高度 */
  background: white;
  box-shadow: 0 0 20px rgba(0,0,0,0.3);
  padding: 44px 48px 40px;
  box-sizing: border-box;
  color: #000;
  overflow: hidden;
}

.reward-form {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.form-header {
  margin-bottom: 18px;
  border-bottom: 2px solid #000;
  padding-bottom: 8px;
}

.form-header-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 270px;
  gap: 16px;
  align-items: start;
}

.form-title-block {
  min-width: 0;
  text-align: center;
  padding-top: 6px;
}

.form-title-payer {
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.05rem;
  margin-bottom: 2px;
  line-height: 1.3;
}

.form-header h1 {
  font-size: 1.45rem;
  letter-spacing: 0.35rem;
  margin: 0;
}

.form-meta {
  font-size: 0.8rem;
  margin-top: 5px;
  text-align: center;
}

.payer-mini-card {
  justify-self: end;
  width: 270px;
  padding: 8px 10px;
  border: 1px solid #000;
  background: #fafafa;
  font-size: 0.74rem;
  line-height: 1.45;
}

.payer-mini-line {
  display: grid;
  grid-template-columns: 66px minmax(0, 1fr);
  gap: 6px;
  align-items: start;
}

.payer-mini-line + .payer-mini-line {
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px solid #bbb;
}

.payer-mini-label {
  font-weight: 700;
}

.payer-mini-line-address {
  word-break: break-all;
}

.form-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 14px;
}

.payment-summary-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(250px, 0.82fr);
  gap: 12px;
  align-items: start;
  margin-bottom: 14px;
}

.payment-summary-grid .form-table {
  margin-bottom: 0;
}

.payment-info-table th {
  width: 108px;
}

.payment-info-table td {
  word-break: break-word;
}

.form-table th, .form-table td {
  border: 1px solid #000;
  padding: 5px 9px;
  text-align: left;
  font-size: 0.83rem;
  line-height: 1.4;
  vertical-align: top;
}

.form-table th {
  background: #f5f5f5;
  width: 120px;
  font-weight: 600;
}

.amount-table th {
  width: 148px;
}

.table-title {
  background: #e0e0e0 !important;
  text-align: center !important;
  font-weight: 700;
}

.form-body {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.text-right { text-align: right !important; }
.font-bold { font-weight: 700; }

.highlight-row { background: #fffde7; }
.final-row { background: #f1f8e9; font-size: 1.1rem; }

.form-footer {
  margin-top: auto;
}

.attachment-note {
  margin: 2px 0 10px;
  padding: 8px 10px;
  border: 1px dashed #bbb;
  border-radius: 10px;
  background: #faf7f0;
  font-size: 0.78rem;
  color: #555;
}

.sign-area {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 18px;
}

.sign-box {
  min-height: 124px;
  border: 1px dashed #ccc;
  padding: 10px;
  display: flex;
  flex-direction: column;
}

.sign-placeholder {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sign-hint {
  color: #999;
  font-size: 0.8rem;
}

.attachment-page {
  display: flex;
  flex-direction: column;
}

.attachment-page-header {
  border-bottom: 2px solid #000;
  padding-bottom: 10px;
  margin-bottom: 18px;
}

.attachment-page-header h2 {
  font-family: 'Noto Serif TC', serif;
  font-size: 1.2rem;
  margin-bottom: 4px;
}

.attachment-page-header p {
  font-size: 0.84rem;
  color: #555;
}

.attachment-image-section {
  flex: 1;
}

.attachment-image-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.attachment-image-card {
  border: 1px solid #d8d8d8;
  border-radius: 14px;
  padding: 14px;
  background: #fafafa;
}

.attachment-image-card figcaption {
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.attachment-image-card img {
  width: 100%;
  max-height: 420px;
  object-fit: contain;
  border: 1px solid #ddd;
  border-radius: 10px;
  background: #fff;
}

.preview-page.dense-page .form-table th,
.preview-page.dense-page .form-table td {
  padding: 5px 8px;
  font-size: 0.82rem;
}

.preview-page.dense-page .form-header {
  margin-bottom: 14px;
}

.preview-page.dense-page .form-header-row {
  grid-template-columns: minmax(0, 1fr) 246px;
  gap: 12px;
}

.preview-page.dense-page .form-table {
  margin-bottom: 11px;
}

.preview-page.dense-page .payment-summary-grid {
  grid-template-columns: minmax(0, 1.1fr) minmax(220px, 0.9fr);
  gap: 10px;
  margin-bottom: 11px;
}

.preview-page.dense-page .payer-mini-card {
  width: 246px;
  font-size: 0.7rem;
  padding: 7px 9px;
}

.preview-page.dense-page .payer-mini-line {
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 5px;
}

.preview-page.dense-page .sign-box {
  min-height: 114px;
}

.preview-page.tight-page {
  padding: 38px 40px 34px;
}

.preview-page.tight-page .form-header-row {
  grid-template-columns: minmax(0, 1fr) 224px;
  gap: 10px;
}

.preview-page.tight-page .form-table th,
.preview-page.tight-page .form-table td {
  padding: 4px 7px;
  font-size: 0.79rem;
}

.preview-page.tight-page .payment-summary-grid {
  grid-template-columns: minmax(0, 1.06fr) minmax(200px, 0.94fr);
  gap: 9px;
}

.preview-page.tight-page .form-header h1 {
  font-size: 1.5rem;
}

.preview-page.tight-page .payer-mini-card {
  width: 224px;
  padding: 6px 8px;
  font-size: 0.66rem;
}

.preview-page.tight-page .payer-mini-line {
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 4px;
}

.preview-page.tight-page .sign-box {
  min-height: 104px;
}

.preview-page.ultra-tight-page {
  padding: 30px 32px 28px;
}

.preview-page.ultra-tight-page .form-header {
  margin-bottom: 10px;
  padding-bottom: 6px;
}

.preview-page.ultra-tight-page .form-header-row {
  grid-template-columns: minmax(0, 1fr) 204px;
  gap: 8px;
}

.preview-page.ultra-tight-page .form-header h1 {
  font-size: 1.28rem;
  letter-spacing: 0.22rem;
}

.preview-page.ultra-tight-page .form-meta {
  font-size: 0.76rem;
  margin-top: 4px;
}

.preview-page.ultra-tight-page .payer-mini-card {
  width: 204px;
  padding: 5px 7px;
  font-size: 0.62rem;
  line-height: 1.35;
}

.preview-page.ultra-tight-page .payer-mini-line {
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 4px;
}

.preview-page.ultra-tight-page .form-table {
  margin-bottom: 8px;
}

.preview-page.ultra-tight-page .payment-summary-grid {
  grid-template-columns: minmax(0, 1fr) minmax(182px, 0.96fr);
  gap: 8px;
  margin-bottom: 8px;
}

.preview-page.ultra-tight-page .form-table th,
.preview-page.ultra-tight-page .form-table td {
  padding: 3px 6px;
  font-size: 0.74rem;
  line-height: 1.3;
}

.preview-page.ultra-tight-page .payment-info-table th {
  width: 88px;
}

.preview-page.ultra-tight-page .attachment-note {
  margin: 0 0 8px;
  padding: 6px 8px;
  font-size: 0.72rem;
}

.preview-page.ultra-tight-page .sign-area {
  margin-top: 10px;
}

.preview-page.ultra-tight-page .sign-box {
  min-height: 82px;
  padding: 8px;
}

.preview-page.ultra-tight-page .sign-box p {
  font-size: 0.76rem;
}

.preview-page.ultra-tight-page .sign-hint {
  font-size: 0.72rem;
}

.notice-area {
  background: var(--surface-warm);
  border-left: 4px solid var(--peach);
  padding: 16px;
  border-radius: var(--radius-sm);
}

.footer-links {
  text-align: center;
  margin-top: 32px;
  color: var(--ink-muted);
}

/* ── Release-ready Shell Overrides ───────────────── */
body {
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--page-max);
  padding: 0 32px 48px;
}

.topbar-inner,
.step-bar {
  max-width: var(--page-max);
}

.topbar-inner {
  padding: 16px 32px;
  gap: 16px 22px;
}

.brand-lockup {
  min-width: 0;
}

.brand-copy {
  min-width: 0;
}

.brand-title {
  font-size: 1.56rem;
}

.brand-subtitle {
  font-size: 0.88rem;
}

.topbar-nav a.active {
  color: var(--peach-deep);
  background: rgba(232, 168, 124, 0.16);
  border-color: rgba(232, 168, 124, 0.22);
}

.step-bar {
  margin: 20px auto 6px;
  width: calc(100% - 64px);
  max-width: calc(var(--page-max) - 64px);
  padding: 10px;
}

.step-item {
  gap: 8px;
}

.step-dot {
  width: 36px;
  height: 36px;
  font-size: 0.92rem;
}

.step-label {
  font-size: 0.82rem;
}

.step-section {
  padding: 28px 0 52px;
}

.card {
  padding: 28px;
  border-radius: 24px;
  box-shadow: var(--shadow-lg);
}

.card + .card {
  margin-top: 20px;
}

.card-title {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
  font-size: 1.18rem;
  font-family: 'Noto Serif TC', serif;
}

.step-hero {
  gap: 24px;
  margin-bottom: 26px;
}

.hero-copy,
.hero-callout,
.category-shell-card {
  border-radius: var(--radius-xl);
}

.hero-copy {
  padding: 32px 34px;
}

.hero-title {
  font-size: 2.12rem;
  line-height: 1.28;
}

.hero-text {
  font-size: 0.98rem;
  max-width: 48rem;
}

.hero-callout {
  padding: 26px;
}

.category-selector {
  align-items: stretch;
}

.category-card {
  min-height: 152px;
  align-items: flex-start;
  padding: 22px;
}

.category-info {
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.category-title {
  font-size: 1.04rem;
}

.category-desc {
  font-size: 0.9rem;
  line-height: 1.55;
}

.featured-card {
  min-height: 188px;
}

.main-card,
.supporting-card {
  min-height: 148px;
}

.category-action {
  align-self: flex-end;
  margin-left: auto;
}

.help-section details {
  border-radius: 18px;
  box-shadow: 0 12px 30px rgba(107, 78, 53, 0.05);
}

.workflow-shell,
.review-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.74fr);
  gap: 28px;
  align-items: start;
}

.workflow-main,
.review-main {
  min-width: 0;
}

.workflow-aside,
.review-aside {
  display: grid;
  gap: 18px;
  position: sticky;
  top: 122px;
}

.step-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.step-toolbar-note {
  color: var(--ink-muted);
  font-size: 0.9rem;
  max-width: 520px;
  text-align: right;
}

.form-section-card {
  display: grid;
  gap: 18px;
}

.sub-section-card {
  display: grid;
  gap: 14px;
  padding: 20px 22px;
  border-radius: 20px;
  background: rgba(255, 252, 247, 0.72);
  border: 1px solid rgba(220, 201, 173, 0.8);
  box-shadow: none;
}

.sub-section-heading {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(220, 201, 173, 0.9);
}

.sub-section-card.is-transfer-mode {
  border-color: rgba(125, 155, 124, 0.44);
  background: linear-gradient(180deg, rgba(249, 254, 248, 0.96) 0%, rgba(255, 252, 247, 0.82) 100%);
}

.sub-section-card[hidden] {
  display: none !important;
}

.upload-grid-single {
  grid-template-columns: 1fr;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-strong);
}

.section-kicker,
.side-panel-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 11px;
  border-radius: 999px;
  background: rgba(232, 168, 124, 0.12);
  color: var(--peach-deep);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.section-description {
  margin-top: 10px;
  color: var(--ink-muted);
  font-size: 0.92rem;
  line-height: 1.7;
}

.form-grid-relaxed {
  gap: 14px;
}

.field-row {
  display: grid;
  gap: 16px;
}

.field-row-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.field-row-align-end {
  align-items: end;
}

.inline-field-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.inline-field-row > .warm-input,
.inline-field-row > select {
  flex: 1;
}

.inline-field-row-tight {
  gap: 8px;
}

.inline-loading,
.upload-status {
  font-size: 0.8rem;
  color: var(--peach-deep);
}

.address-row {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr) minmax(0, 1fr);
  gap: 10px;
  margin-bottom: 8px;
}

.field-hint-accent {
  color: var(--peach-deep);
}

.choice-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.choice-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line-strong);
  color: var(--ink);
  cursor: pointer;
}

.choice-pill:hover {
  border-color: rgba(232, 168, 124, 0.55);
  background: rgba(255, 252, 247, 0.95);
}

.choice-pill input {
  accent-color: var(--peach-deep);
}

.upload-section {
  margin-top: 8px;
  padding-top: 18px;
  border-top: 1px dashed var(--line-strong);
}

.upload-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.upload-preview {
  position: relative;
  text-align: center;
}

.upload-preview-image {
  max-width: 100%;
  max-height: 128px;
  border-radius: var(--radius-sm);
}

.date-range-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 8px;
  align-items: center;
}

.section-divider {
  margin: 8px 0 2px;
  border: none;
  border-top: 1px solid var(--line-strong);
}

.nhi-exempt-row {
  margin-top: 10px;
}

.checkbox-row {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-muted);
  font-size: 0.86rem;
  cursor: pointer;
}

.checkbox-row-soft {
  width: 100%;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid var(--line-strong);
}

.form-submit-row {
  display: flex;
  justify-content: flex-start;
  margin-top: 4px;
}

.btn-primary-large {
  min-width: 220px;
  padding: 14px 40px;
  font-size: 1.02rem;
}

.side-panel,
.review-intro-card,
.review-action-card {
  background: var(--surface-soft);
  border: 1px solid var(--line-strong);
  border-radius: 24px;
  box-shadow: 0 18px 40px rgba(107, 78, 53, 0.08);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.side-panel {
  padding: 22px;
}

.side-panel h3,
.review-action-card h3,
.review-intro-card h2 {
  font-family: 'Noto Serif TC', serif;
  margin: 12px 0 10px;
  line-height: 1.4;
}

.side-panel p,
.review-action-card p,
.review-intro-card p {
  color: var(--ink-muted);
  font-size: 0.9rem;
}

.side-checklist {
  margin-top: 14px;
  padding-left: 20px;
  color: var(--ink);
}

.side-checklist li + li {
  margin-top: 8px;
}

.side-panel-soft,
.review-action-card-soft {
  background: linear-gradient(180deg, rgba(255, 250, 243, 0.92) 0%, rgba(253, 243, 230, 0.84) 100%);
}

.review-intro-card {
  padding: 24px 26px;
  margin-bottom: 18px;
}

.review-intro-card h2 {
  font-size: 1.56rem;
}

.preview-controls {
  display: grid;
  gap: 12px;
  justify-content: stretch;
  align-items: stretch;
  margin-bottom: 0;
  background: transparent;
  padding: 0;
  border: none;
}

.review-action-card {
  padding: 22px;
}

.review-action-head h3 {
  font-size: 1.2rem;
}

.review-action-head p {
  margin-bottom: 6px;
}

.review-action-card .btn-primary,
.review-action-card .btn-secondary {
  width: 100%;
}

.preview-container {
  padding: 24px;
  min-height: 680px;
  border-radius: 24px;
  box-shadow: 0 24px 48px rgba(34, 28, 22, 0.16);
}

.footer-links-inline {
  text-align: left;
  margin-top: 8px;
}

/* ── Print Styles ────────────────────────────── */
@media print {
  body {
    background: white !important;
    padding: 0 !important;
    margin: 0 !important;
  }

  .topbar,
  .step-bar,
  .preview-controls,
  .notice-area,
  .notice,
  .footer-links,
  .btn-primary,
  .btn-secondary {
    display: none !important;
  }

  .container {
    max-width: none !important;
    padding: 0 !important;
    margin: 0 !important;
  }

  .preview-container {
    background: none !important;
    padding: 0 !important;
    margin: 0 !important;
    display: block !important;
    height: auto !important;
  }

  #previewArea {
    transform: none !important;
    display: block !important;
  }

  .preview-page {
    box-shadow: none !important;
    margin: 0 auto 8mm !important;
    padding: 18mm 16mm 16mm !important;
    width: 210mm !important;
    height: 297mm !important;
    page-break-after: always;
  }

  .preview-page:last-child {
    page-break-after: auto;
  }
}

/* ── Section 切換 ────────────────────────────── */
.step-section { display: none; }
.step-section.active { display: block; }

/* ── RWD 手機（≤768px）──────────────────────── */
@media (max-width: 768px) {
  .container { padding: 0 16px; }

  .container {
    padding-bottom: 36px;
  }

  .step-hero {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .topbar-inner {
    padding: 12px 16px 14px;
    gap: 12px;
    align-items: stretch;
  }

  .brand-lockup {
    width: 100%;
  }

  .brand-title {
    font-size: 1.08rem;
  }

  .brand-subtitle {
    font-size: 0.8rem;
  }

  .year-selector {
    width: 100%;
    justify-content: space-between;
  }

  .runtime-status {
    width: 100%;
  }

  .step-bar {
    width: calc(100% - 32px);
    max-width: none;
    padding: 10px 8px;
    gap: 0;
    margin-top: 16px;
    overflow: hidden;
  }

  .step-item {
    min-width: 0;
  }

  .step-connector {
    flex: 0 0 clamp(12px, 4vw, 18px);
    margin-bottom: 28px;
  }

  .step-label {
    font-size: 0.68rem;
    white-space: normal;
    line-height: 1.25;
    text-align: center;
    max-width: 5.4em;
  }

  .card { padding: 16px; }

  .workflow-shell,
  .review-shell {
    grid-template-columns: 1fr;
  }

  .workflow-aside,
  .review-aside {
    position: static;
    order: -1;
  }

  .step-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .step-toolbar-note {
    text-align: left;
  }

  .field-row-2,
  .upload-grid {
    grid-template-columns: 1fr;
  }

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

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

  .featured-card {
    min-height: auto;
  }

  .category-action {
    align-self: flex-start;
  }

  .category-shell-header {
    flex-direction: column;
  }

  .btn-primary,
  .btn-secondary { width: 100%; }

  .topbar-nav {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    flex-wrap: nowrap;
    margin-left: 0;
  }

  .topbar-nav a {
    min-width: 0;
    padding: 10px 8px;
    font-size: 0.82rem;
    justify-content: center;
    text-align: center;
  }

  .hero-copy {
    padding: 24px 20px;
  }

  .hero-title {
    font-size: 1.56rem;
    line-height: 1.32;
  }

  .hero-text {
    font-size: 0.94rem;
  }

  .hero-callout {
    padding: 20px;
  }

  .hero-callout-title {
    font-size: 1.18rem;
    margin-top: 12px;
  }

  .attachment-image-grid,
  .sign-area {
    grid-template-columns: 1fr;
  }

  .crop-modal {
    padding: 12px;
  }

  .crop-modal-card {
    padding: 16px;
  }

  .crop-modal-header,
  .crop-modal-actions {
    flex-direction: column;
  }

  .crop-workspace {
    grid-template-columns: 1fr;
  }

  .crop-control-grid {
    grid-template-columns: 1fr;
  }

  .crop-control {
    grid-template-columns: 1fr auto;
  }

  .crop-control input {
    grid-column: 1 / -1;
    grid-row: auto;
  }

  .preview-container {
    min-height: 0;
    padding: 16px;
  }
}

/* ── History Page ────────────────────────────── */
.history-page-shell {
  padding-top: 34px;
  padding-bottom: 80px;
}
.history-hero-card {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(240px, 0.7fr);
  gap: 18px;
  margin-bottom: 20px;
  padding: 26px 28px;
  background: rgba(255, 251, 245, 0.88);
  border: 1px solid rgba(220, 201, 173, 0.78);
  border-radius: 26px;
  box-shadow: 0 20px 48px rgba(107, 78, 53, 0.08);
  backdrop-filter: blur(10px);
}
.history-hero-card h2 {
  margin: 10px 0 8px;
  font-family: 'Noto Serif TC', serif;
  font-size: 2rem;
  line-height: 1.25;
}
.history-hero-card p {
  color: var(--ink-muted);
  font-size: 0.94rem;
}
.history-hero-side {
  display: grid;
  gap: 12px;
  align-content: start;
}
.history-side-card,
.history-toolbar-card,
.history-table-card {
  background: rgba(255, 252, 247, 0.84);
  border: 1px solid rgba(220, 201, 173, 0.74);
  border-radius: 22px;
  box-shadow: 0 16px 34px rgba(107, 78, 53, 0.07);
}
.history-side-card {
  padding: 18px 20px;
}
.history-side-card p {
  color: var(--ink-muted);
  font-size: 0.88rem;
}
.history-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
}
.history-toolbar-card {
  padding: 20px 22px;
  margin-bottom: 18px;
}
.search-bar {
  display: flex;
  gap: 12px;
  margin-top: 14px;
}
.history-table-container {
  overflow-x: auto;
}
.history-table-card {
  padding: 18px;
}
.history-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 12px 28px rgba(107, 78, 53, 0.05);
}
.history-table th, .history-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.history-table th {
  background: var(--surface-warm);
  font-weight: 600;
  color: var(--ink-muted);
  font-size: 0.88rem;
}
.history-table tr:last-child td { border-bottom: none; }
.history-table tr:hover td { background: #fafafa; }

.action-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.btn-icon {
  min-width: 68px;
  padding: 8px 12px;
  font-size: 0.82rem;
}

.tooltip-wrap {
  position: relative;
  display: inline-block;
}
.tooltip-bubble {
  display: none;
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--ink);
  color: #fff;
  font-size: 0.75rem;
  line-height: 1.4;
  padding: 6px 10px;
  border-radius: 6px;
  white-space: nowrap;
  max-width: 260px;
  white-space: normal;
  z-index: 100;
  pointer-events: none;
}
.tooltip-wrap:hover .tooltip-bubble { display: block; }

.pagination {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 32px;
  align-items: center;
}
.empty-state {
  text-align: center;
  padding: 54px 20px;
  color: var(--ink-muted);
}
.status-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 0.75rem;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(232, 168, 124, 0.14);
  color: var(--peach-deep);
  border: 1px solid rgba(232, 168, 124, 0.22);
}
#hiddenWrapper {
  position: absolute;
  left: -9999px;
  top: 0;
  width: 794px;
}
#hiddenWrapper .a4-page {
  transform: none !important;
}

@media (max-width: 900px) {
  .history-hero-card {
    grid-template-columns: 1fr;
  }
  .history-header {
    flex-direction: column;
    align-items: flex-start;
  }
}
@media (max-width: 640px) {
  .search-bar {
    flex-direction: column;
  }
  .action-btns {
    flex-direction: column;
  }
  .btn-icon {
    width: 100%;
  }
}

/* ── Knowledge Page ──────────────────────────── */
.year-banner {
  background: #fef9e7;
  border-bottom: 1px solid #d4ac0d;
  padding: 7px 24px;
  text-align: center;
  font-size: 0.82rem;
  color: #7d6e3a;
}
.knowledge-nav {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 82px;
  z-index: 100;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.knowledge-nav::-webkit-scrollbar { display: none; }
.knowledge-nav ul {
  display: flex;
  list-style: none;
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 0 24px;
  gap: 0;
  white-space: nowrap;
}
.knowledge-shell {
  padding-bottom: 56px;
}
.knowledge-hero-card {
  display: grid;
  grid-template-columns: minmax(0, 1.28fr) minmax(260px, 0.72fr);
  gap: 20px;
  margin: 26px 0 10px;
  padding: 28px 30px;
  border-radius: 28px;
  background: rgba(255, 252, 247, 0.86);
  border: 1px solid rgba(220, 201, 173, 0.76);
  box-shadow: 0 22px 52px rgba(107, 78, 53, 0.08);
  backdrop-filter: blur(10px);
}
.knowledge-hero-card h1 {
  margin: 10px 0 12px;
  font-family: 'Noto Serif TC', serif;
  font-size: 2.1rem;
  line-height: 1.24;
  color: var(--ink);
}
.knowledge-hero-card p {
  color: var(--ink-muted);
  font-size: 0.96rem;
  line-height: 1.75;
}
.knowledge-hero-side {
  display: grid;
  gap: 14px;
  align-content: start;
}
.knowledge-side-card {
  padding: 18px 20px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(220, 201, 173, 0.76);
}
.knowledge-side-card h3 {
  margin: 0 0 8px;
  font-family: 'Noto Serif TC', serif;
  font-size: 1.06rem;
}
.knowledge-side-card p {
  font-size: 0.88rem;
}
.knowledge-nav li a {
  display: block;
  padding: 9px 12px;
  font-size: 0.81rem;
  color: var(--ink-muted);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-bottom-color var(--transition);
}
.knowledge-nav li a:hover { color: var(--peach-deep); border-bottom-color: var(--peach); }
.k-section {
  padding: 40px 0 36px;
  border-bottom: 1px solid var(--border);
  scroll-margin-top: 110px;
}
.k-section:last-child { border-bottom: none; padding-bottom: 60px; }
.k-section-title {
  font-family: 'Noto Serif TC', serif;
  font-size: 1.45rem;
  color: var(--ink);
  margin-bottom: 6px;
}
.k-section-desc {
  font-size: 0.9rem;
  color: var(--ink-muted);
  margin-bottom: 24px;
  line-height: 1.7;
}

.story-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 28px; }
.story-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--peach);
  border-radius: var(--radius-md);
  padding: 20px;
}
.story-avatar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.story-icon {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--surface-warm);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; flex-shrink: 0;
}
.story-name { font-weight: 600; font-size: 0.88rem; color: var(--ink); }
.story-role { font-size: 0.75rem; color: var(--ink-muted); }
.story-text { font-size: 0.9rem; line-height: 1.8; color: var(--ink); }
.story-tag {
  display: inline-block;
  margin-top: 10px;
  background: #fdf3e6;
  border: 1px solid var(--peach);
  border-radius: 4px;
  padding: 2px 8px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--peach-deep);
}

.three-things {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 22px;
}
.three-things-title { font-weight: 600; font-size: 0.93rem; color: var(--ink); margin-bottom: 12px; }
.three-things ol { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.three-things li { display: flex; align-items: center; gap: 12px; }
.tt-num {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--peach);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; font-weight: 700; flex-shrink: 0;
}
.three-things a {
  color: var(--peach-deep); text-decoration: none;
  font-size: 0.9rem; font-weight: 500;
}
.three-things a:hover { text-decoration: underline; }

.flowchart-container {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 32px;
}
.flowchart-label { font-weight: 600; font-size: 0.93rem; margin-bottom: 3px; color: var(--ink); }
.flowchart-hint { font-size: 0.81rem; color: var(--ink-muted); margin-bottom: 18px; }
.flow-history { display: flex; flex-direction: column; gap: 8px; margin-bottom: 12px; }
.flow-history-step {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.85rem;
  animation: fadeSlideIn 0.15s ease;
}
@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}
.flow-history-q { color: var(--ink); }
.flow-history-a {
  padding: 2px 8px; border-radius: 4px;
  font-weight: 600; font-size: 0.78rem; white-space: nowrap;
}
.flow-history-a.yes { background: var(--peach); color: #fff; }
.flow-history-a.no { background: var(--border); color: var(--ink-muted); }
.flow-question-card {
  border: 1.5px solid var(--peach);
  border-radius: var(--radius-md);
  background: var(--surface-warm);
  padding: 20px;
  animation: fadeSlideIn 0.15s ease;
}
.flow-q-text { font-weight: 600; font-size: 0.97rem; color: var(--ink); margin-bottom: 14px; }
.flow-buttons { display: flex; gap: 10px; }
.flow-btn-yes {
  padding: 8px 22px;
  background: var(--peach); color: #fff;
  border: none; border-radius: var(--radius-sm);
  font-size: 0.88rem; font-weight: 600; font-family: inherit;
  cursor: pointer; transition: background var(--transition);
}
.flow-btn-yes:hover { background: var(--peach-deep); }
.flow-btn-no {
  padding: 8px 22px;
  background: var(--surface); color: var(--ink-muted);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.88rem; font-weight: 500; font-family: inherit;
  cursor: pointer; transition: all var(--transition);
}
.flow-btn-no:hover { border-color: var(--peach); color: var(--ink); }
.flow-result-card {
  border: 2px solid var(--sage);
  border-radius: var(--radius-md);
  background: #eafaf1;
  padding: 20px;
  animation: fadeSlideIn 0.15s ease;
}
.flow-result-label {
  font-size: 0.75rem; font-weight: 700; color: var(--sage);
  text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 4px;
}
.flow-result-title { font-size: 1.05rem; font-weight: 700; color: var(--ink); margin-bottom: 12px; }
.flow-result-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.flow-goto-link {
  display: inline-block;
  padding: 7px 16px;
  background: var(--sage); color: #fff;
  border-radius: var(--radius-sm);
  font-size: 0.83rem; font-weight: 600;
  text-decoration: none;
  transition: opacity var(--transition);
}
.flow-goto-link:hover { opacity: 0.85; }
.flow-reset-btn {
  padding: 7px 16px;
  background: transparent; color: var(--ink-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.83rem; font-family: inherit; cursor: pointer;
  transition: all var(--transition);
}
.flow-reset-btn:hover { border-color: var(--peach); color: var(--ink); }

.table-scroll { overflow-x: auto; margin-bottom: 28px; }
.cat-table {
  width: 100%; border-collapse: collapse;
  font-size: 0.87rem; min-width: 540px;
}
.cat-table th {
  background: var(--surface-warm);
  border: 1px solid var(--border);
  padding: 10px 13px;
  text-align: left; font-weight: 600; color: var(--ink);
  white-space: nowrap;
}
.cat-table td { border: 1px solid var(--border); padding: 10px 13px; vertical-align: top; color: var(--ink); }
.cat-table tr:nth-child(even) td { background: var(--bg); }
.rate-tag {
  display: inline-block;
  background: #fdf3e6; border: 1px solid var(--peach);
  border-radius: 4px; padding: 1px 7px;
  font-weight: 600; font-size: 0.8rem; color: var(--peach-deep);
}
.exempt-tag {
  display: inline-block;
  background: #eafaf1; border: 1px solid var(--sage);
  border-radius: 4px; padding: 1px 7px;
  font-weight: 600; font-size: 0.8rem; color: var(--sage);
}

.cat-detail {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 16px;
  scroll-margin-top: 115px;
}
.cat-detail-header { display: flex; align-items: flex-start; gap: 14px; margin-bottom: 16px; }
.cat-badge {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 48px; height: 48px;
  background: #fdf3e6; border: 1.5px solid var(--peach);
  border-radius: var(--radius-sm);
  font-size: 1.05rem; font-weight: 700; color: var(--peach-deep);
  flex-shrink: 0; padding: 0 8px;
}
.cat-title-block { flex: 1; }
.cat-main-title {
  font-family: 'Noto Serif TC', serif;
  font-size: 1.1rem; font-weight: 600; color: var(--ink); margin-bottom: 3px;
}
.cat-sub-title { font-size: 0.8rem; color: var(--ink-muted); }
.cat-body { font-size: 0.9rem; line-height: 1.8; }
.cat-body p { margin-bottom: 10px; }
.cat-body ul { padding-left: 18px; margin-bottom: 10px; }
.cat-body li { margin-bottom: 4px; }
.highlight-box {
  background: var(--surface-warm);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 10px 14px;
  font-size: 0.87rem; margin-top: 10px; color: var(--ink); line-height: 1.7;
}
.info-box {
  background: #e8f4fd;
  border-left: 3px solid #3498db;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 10px 14px;
  font-size: 0.87rem; margin-top: 10px; color: var(--ink); line-height: 1.7;
}

.calc-demo {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px; margin-bottom: 16px;
}
.calc-demo-head { margin-bottom: 16px; }
.calc-demo-title { font-weight: 700; font-size: 0.93rem; color: var(--ink); margin-bottom: 2px; }
.calc-demo-scenario { font-size: 0.82rem; color: var(--ink-muted); }
.calc-steps { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.calc-step {
  flex: 1; min-width: 150px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px;
  display: flex; flex-direction: column;
}
.calc-step-num {
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--peach); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 0.7rem; font-weight: 700; margin-bottom: 8px;
}
.calc-step-q { font-size: 0.8rem; color: var(--ink-muted); margin-bottom: 6px; line-height: 1.5; flex: 1; }
.calc-step-amount { font-size: 1.2rem; font-weight: 700; color: var(--peach-deep); }
.calc-step-formula { font-size: 0.73rem; color: var(--ink-muted); margin-top: 2px; }
.calc-net {
  display: flex; justify-content: space-between; align-items: center;
  background: var(--surface-warm);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px; margin-bottom: 10px;
}
.calc-net-label { font-weight: 600; font-size: 0.9rem; color: var(--ink); }
.calc-net-value { font-size: 1.3rem; font-weight: 700; color: var(--sage); }
.calc-note { font-size: 0.82rem; color: var(--ink-muted); line-height: 1.6; }
.calc-note-box {
  background: #e8f4fd;
  border-left: 3px solid #3498db;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 10px 14px; font-size: 0.85rem; color: var(--ink);
  margin-top: 12px; line-height: 1.7;
}

.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.compare-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
}
.compare-card-title {
  font-weight: 700; font-size: 0.88rem;
  padding-bottom: 8px; margin-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.compare-card.resident .compare-card-title { color: var(--sage); }
.compare-card.non-resident .compare-card-title { color: var(--peach-deep); }
.compare-list { list-style: none; padding: 0; font-size: 0.85rem; line-height: 1.7; }
.compare-list li::before { content: "• "; color: var(--ink-muted); }
.residency-table { width: 100%; border-collapse: collapse; font-size: 0.87rem; margin-bottom: 16px; }
.residency-table th {
  background: var(--surface-warm); border: 1px solid var(--border);
  padding: 9px 13px; font-weight: 600;
}
.residency-table td { border: 1px solid var(--border); padding: 9px 13px; }
.residency-table .tag-yes { color: var(--sage); font-weight: 600; }
.residency-table .tag-no { color: var(--peach-deep); font-weight: 600; }
.warn-box {
  background: #fef9e7;
  border: 1px solid #d4ac0d;
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-size: 0.88rem; line-height: 1.7; color: var(--ink);
}
.warn-box-title { font-weight: 700; color: #7d6e3a; margin-bottom: 5px; }

.nhi-table { width: 100%; border-collapse: collapse; font-size: 0.87rem; margin: 14px 0; }
.nhi-table th {
  background: var(--surface-warm); border: 1px solid var(--border);
  padding: 9px 13px; font-weight: 600; text-align: left;
}
.nhi-table td { border: 1px solid var(--border); padding: 9px 13px; }
.nhi-table tr:nth-child(even) td { background: var(--bg); }

.slip-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.slip-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px;
}
.slip-code {
  display: inline-block;
  background: var(--ink); color: #fff;
  border-radius: 4px; padding: 2px 10px;
  font-size: 1.15rem; font-weight: 700; margin-bottom: 6px;
}
.slip-for { font-size: 0.8rem; color: var(--ink-muted); margin-bottom: 10px; line-height: 1.5; }
.slip-link {
  display: inline-block; padding: 6px 14px;
  background: var(--peach); color: #fff;
  border-radius: var(--radius-sm);
  font-size: 0.82rem; font-weight: 600;
  text-decoration: none; transition: background var(--transition);
}
.slip-link:hover { background: var(--peach-deep); }
.slip-link.outline {
  background: transparent; color: var(--peach-deep);
  border: 1px solid var(--peach);
}
.slip-link.outline:hover { background: var(--surface-warm); }
.slip-link.pending {
  background: var(--border); color: var(--ink-muted);
  cursor: default; pointer-events: none;
}

.faq-list { display: flex; flex-direction: column; gap: 8px; }
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.faq-question {
  width: 100%; text-align: left;
  padding: 14px 18px;
  background: none; border: none;
  font-family: inherit; font-size: 0.9rem; font-weight: 500;
  color: var(--ink); cursor: pointer;
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  transition: background var(--transition);
}
.faq-question:hover { background: var(--bg); }
.faq-question[aria-expanded="true"] { background: var(--surface-warm); color: var(--peach-deep); }
.faq-chevron {
  flex-shrink: 0; font-size: 0.7rem; color: var(--ink-muted);
  transition: transform var(--transition);
}
.faq-question[aria-expanded="true"] .faq-chevron { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease-out; }
.faq-answer-inner {
  padding: 4px 18px 18px;
  font-size: 0.88rem; line-height: 1.85;
  color: var(--ink-muted);
  border-top: 1px solid var(--border);
}
.faq-answer-inner strong { color: var(--ink); }
.faq-mini-table { border-collapse: collapse; font-size: 0.82rem; margin-top: 10px; width: 100%; }
.faq-mini-table th, .faq-mini-table td {
  border: 1px solid var(--border); padding: 6px 10px; text-align: left;
}
.faq-mini-table th { background: var(--surface-warm); font-weight: 600; color: var(--ink); }

/* ── 四類別色彩識別 ── */
.cat-badge-9A { background: var(--sage); color: #fff; }
.cat-badge-9B { background: var(--accent); color: #fff; }
.cat-badge-50 { background: var(--peach-deep); color: #fff; }
.cat-badge-92 { background: var(--ink-muted); color: #fff; }

/* ── 類別判斷卡 ── */
.cat-decision-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}
.cat-decision-card {
  border: 1.5px solid var(--border);
  border-top: 4px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  background: var(--surface);
}
.cat-decision-card.cat-9A { border-top-color: var(--sage); }
.cat-decision-card.cat-9B { border-top-color: var(--accent); }
.cat-decision-card.cat-50 { border-top-color: var(--peach-deep); }
.cat-decision-card.cat-92 { border-top-color: var(--ink-muted); }
.cat-decision-title { font-weight: 600; font-size: 0.92rem; margin: 8px 0 6px; color: var(--ink); }
.cat-decision-scenario { font-size: 0.84rem; color: var(--ink-muted); line-height: 1.6; margin: 0 0 8px; }
.cat-decision-examples { font-size: 0.82rem; color: var(--ink-muted); padding-left: 16px; margin: 0; }
.cat-decision-examples li { margin-bottom: 2px; }

/* ── 速查手風琴 ── */
details.rate-accordion { margin-bottom: 20px; }
details.rate-accordion > summary {
  cursor: pointer;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-weight: 500;
  background: var(--surface);
  list-style: none;
  user-select: none;
}
details.rate-accordion > summary::-webkit-details-marker { display: none; }
details.rate-accordion[open] > summary {
  border-radius: 8px 8px 0 0;
  border-bottom-color: transparent;
}
details.rate-accordion > .table-scroll {
  border: 1.5px solid var(--border);
  border-top: none;
  border-radius: 0 0 8px 8px;
}

/* ── 計算示範 Tab 篩選 ── */
.calc-tabs { display: flex; gap: 8px; margin-bottom: 20px; flex-wrap: wrap; }
.calc-tab {
  padding: 6px 16px;
  border: 1.5px solid var(--border);
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.85rem;
  background: var(--surface);
  font-family: inherit;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.calc-tab.active { background: var(--peach-deep); color: #fff; border-color: var(--peach-deep); }
.calc-tab:hover:not(.active) { background: var(--bg); border-color: var(--peach); }
.calc-demo.hidden { display: none; }

@media (max-width: 900px) {
  .cat-decision-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .payment-summary-grid {
    grid-template-columns: 1fr;
  }
  .knowledge-hero-card {
    grid-template-columns: 1fr;
    padding: 22px;
  }
  .story-cards { grid-template-columns: 1fr; }
  .slip-cards { grid-template-columns: 1fr; }
  .compare-grid { grid-template-columns: 1fr; }
  .calc-steps { flex-direction: column; }
  .calc-step { min-width: 0; }
  .flow-buttons { flex-direction: column; }
  .flow-btn-yes, .flow-btn-no { width: 100%; text-align: center; }
  .knowledge-nav li { display: inline-block; }
  .knowledge-nav li a { padding: 9px 9px; font-size: 0.76rem; }
  .k-section-title { font-size: 1.2rem; }
  .flowchart-container { padding: 16px; }
  .cat-decision-grid { grid-template-columns: 1fr; }
}

@media print {
  .knowledge-nav, .year-banner { display: none !important; }
}