/* 教材 PDF：一年级卡通风（book-playful） */
.pack-book .sheet.book-playful {
  font-family: "Fredoka", "ZCOOL KuaiLe", "PingFang SC", sans-serif;
  color: #3d2f4f;
  background:
    radial-gradient(circle at 8% 6%, rgba(255, 213, 79, 0.45), transparent 24%),
    radial-gradient(circle at 94% 8%, rgba(129, 212, 250, 0.42), transparent 22%),
    radial-gradient(circle at 88% 92%, rgba(244, 143, 177, 0.35), transparent 26%),
    radial-gradient(circle at 12% 88%, rgba(129, 199, 132, 0.38), transparent 24%),
    linear-gradient(180deg, #fff9fd 0%, #fffdf5 42%, #f3fbff 100%);
  padding: 12mm 14mm 12mm;
}
.pack-book .sheet.book-playful::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5mm;
  background: linear-gradient(90deg, #ff5252, #ffca28, #66bb6a, #42a5f5, #ab47bc);
  z-index: 3;
  border-radius: 6px 6px 0 0;
}
.pack-book .sheet.book-playful::after {
  inset: 7mm;
  border: 2pt dashed rgba(255, 183, 77, 0.55);
  border-radius: 5mm;
}
.pack-book .bk-foot {
  font-family: "Fredoka", "ZCOOL KuaiLe", sans-serif;
  font-size: 9.5pt;
  color: #7b6f8f;
}
.pack-book .bk-foot-meta b { color: #e53935; }
.pack-book .bk-foot-page { color: #5c6bc0; font-weight: 600; }
.pack-book .bk-head {
  align-items: center;
  gap: 4mm;
  margin: 2mm 0 7mm;
  padding: 3mm 4mm;
  background: rgba(255, 255, 255, 0.72);
  border: 2.5pt solid #ffe082;
  border-radius: 5mm;
  box-shadow: 0 3px 0 #ffcc80;
  border-bottom: none;
}
.pack-book .bk-kicker {
  font-family: "Fredoka", sans-serif;
  font-size: 14pt;
  min-width: 10mm;
  height: 10mm;
  border-radius: 50%;
  background: linear-gradient(145deg, #ff7043, #e53935);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 0 #c62828;
}
.pack-book .bk-title {
  font-family: "Fredoka", "ZCOOL KuaiLe", sans-serif;
  font-size: 24pt;
  font-weight: 700;
  color: #e53935;
}
.pack-book .bk-brand {
  font-family: "Fredoka", sans-serif;
  font-size: 13pt;
  letter-spacing: 0.22em;
  color: #5c6bc0;
}
.pack-book .bk-unit {
  font-family: "Fredoka", "ZCOOL KuaiLe", sans-serif;
  font-size: 12pt;
  color: #43a047;
  font-weight: 700;
}
.pack-book .bk-display {
  font-family: "Fredoka", sans-serif;
  font-size: 78pt;
  font-weight: 700;
  color: #e53935;
  text-shadow: 3px 3px 0 #ffcc80, 6px 6px 0 rgba(229, 57, 53, 0.18);
}
.pack-book .bk-display-hand {
  font-size: 46pt;
  color: #2e7d32;
}
.pack-book .bk-phrase {
  font-family: "Fredoka", "ZCOOL KuaiLe", sans-serif;
  font-size: 20pt;
  font-style: normal;
  font-weight: 600;
  color: #6a1b9a;
}
.pack-book .bk-ipa {
  font-family: "Fredoka", sans-serif;
  font-size: 16pt;
  color: #00897b;
  font-weight: 600;
}
.pack-book .bk-hero {
  max-width: 132mm;
  padding: 4mm;
  background: #fff;
  border: 3pt solid #ffcc80;
  border-radius: 8mm;
  box-shadow: 0 5px 0 #ffe082;
}
.pack-book .bk-words {
  font-family: "Fredoka", "ZCOOL KuaiLe", sans-serif;
  font-size: 13pt;
  font-weight: 600;
}
.pack-book .book-cover .name-row {
  font-family: "Fredoka", sans-serif;
  font-size: 10pt;
  color: #7b6f8f;
  font-weight: 600;
}
.pack-book .name-row i { border-bottom: 2pt dashed #b39ddb; }
.pack-book .bk-plate {
  background: #fff8e1;
  border: 3pt solid #ffcc80;
  border-radius: 6mm;
  box-shadow: 0 4px 0 #ffe082;
}
.pack-book .bk-caption {
  font-family: "Fredoka", "ZCOOL KuaiLe", sans-serif;
  font-size: 14pt;
  font-weight: 600;
  color: #e65100;
  font-style: normal;
}
.pack-book .bk-letter {
  background: #e8f5e9;
  border: 3pt solid #a5d6a7;
  border-radius: 6mm;
  box-shadow: 0 4px 0 #c8e6c9;
}
.pack-book .bk-face {
  background: #fff;
  border-radius: 4mm;
  padding: 2mm;
}
.pack-book .bk-face .face-lab {
  font-family: "Fredoka", sans-serif;
  font-size: 8pt;
  color: #7e57c2;
  font-weight: 700;
}
.pack-book .bk-face.is-print .pair {
  font-family: "Fredoka", sans-serif;
  font-size: 44pt;
  font-weight: 700;
  color: #e53935;
}
.pack-book .bk-face.is-hand .pair { font-size: 48pt; color: #2e7d32; }
.pack-book .bk-letter .ipa {
  font-family: "Fredoka", sans-serif;
  font-size: 17pt;
  color: #00897b;
  font-weight: 600;
}
.pack-book .bk-vocab .pic-tile,
.pack-book .bk-vocab .tile {
  border: 3pt solid #fff;
  border-radius: 5mm;
  box-shadow: 0 4px 0 rgba(0, 0, 0, 0.06);
}
.pack-book .pic-tile.t0 { background: #fff3e0; border-color: #ffcc80; }
.pack-book .pic-tile.t1 { background: #e8f5e9; border-color: #a5d6a7; }
.pack-book .pic-tile.t2 { background: #e3f2fd; border-color: #90caf9; }
.pack-book .pic-tile.t3 { background: #fce4ec; border-color: #f48fb1; }
.pack-book .pic-tile.t4 { background: #f3e5f5; border-color: #ce93d8; }
.pack-book .pic-tile.t5 { background: #fffde7; border-color: #fff176; }
.pack-book .lab-print {
  font-family: "Fredoka", sans-serif;
  font-size: 24pt;
  font-weight: 600;
}
.pack-book .lab-hand { font-size: 30pt; }
.pack-book .onset { color: #e53935; }
.pack-book .model-card {
  border: 3pt solid #90caf9;
  border-radius: 5mm;
  box-shadow: 0 3px 0 #bbdefb;
}
.pack-book .stave-line {
  border: 2pt solid #b3e5fc;
  border-radius: 4mm;
}
.pack-book .stave-tag {
  font-family: "Fredoka", sans-serif;
  font-size: 8pt;
  color: #5c6bc0;
  font-weight: 700;
}
.pack-book .write-box {
  border: 2pt dashed #90caf9;
  border-radius: 4mm;
  color: #90caf9;
  font-family: "Fredoka", sans-serif;
  font-size: 12pt;
  font-weight: 600;
}
.pack-book .num-box {
  border: 2.5pt solid #e53935;
  border-radius: 4mm;
  background: #fff;
}
.pack-book .bk-section {
  font-family: "Fredoka", "ZCOOL KuaiLe", sans-serif;
  font-size: 11pt;
  color: #6a1b9a;
  font-weight: 700;
  text-transform: none;
  letter-spacing: 0.04em;
}
.pack-book .bk-section .bk-ipa-inline {
  font-family: "Fredoka", sans-serif;
  font-style: normal;
  font-size: 12pt;
  color: #00897b;
}
.pack-book .bk-match {
  grid-template-columns: 1fr 1fr;
  gap: 6mm;
}
.pack-book .bk-match-mid { display: none; }
.pack-book .bk-match-row {
  border: 2.5pt solid #ffcc80;
  border-radius: 5mm;
  box-shadow: 0 3px 0 #ffe082;
}
.pack-book .bk-match-row:nth-child(2) {
  border-color: #a5d6a7;
  box-shadow: 0 3px 0 #c8e6c9;
  background: #f1f8e9;
}
.pack-book .bk-match-row:nth-child(3) {
  border-color: #90caf9;
  box-shadow: 0 3px 0 #bbdefb;
  background: #e3f2fd;
}
.pack-book .bk-match-row:nth-child(4) {
  border-color: #f48fb1;
  box-shadow: 0 3px 0 #f8bbd0;
  background: #fce4ec;
}
.pack-book .bk-match-row b {
  font-family: "Fredoka", sans-serif;
  font-size: 14pt;
  color: #e53935;
}
.pack-book .bk-choose-prompt,
.pack-book .bk-opt {
  border: 2.5pt solid #ce93d8;
  border-radius: 5mm;
  box-shadow: 0 3px 0 #e1bee7;
}
.pack-book .bk-ring { border: 2pt dashed #b39ddb; }
.pack-book .bk-ring.is-sample { border: 2.5pt dashed #e53935; }
.pack-book .bk-maze-clue {
  border: 2.5pt solid #90caf9;
  border-radius: 4mm;
  box-shadow: 0 2px 0 #bbdefb;
}
.pack-book .bk-maze {
  border: 2.5pt solid #81c784;
  border-radius: 5mm;
  overflow: hidden;
}
.pack-book .bk-maze-cell {
  font-family: "Fredoka", sans-serif;
  color: #3d2f4f;
  border-right-color: #e8f5e9;
  border-bottom-color: #e8f5e9;
}
.pack-book .bk-copy-meta {
  background: #fff8e1;
  border: 2.5pt solid #ffcc80;
  border-radius: 5mm;
  box-shadow: 0 3px 0 #ffe082;
}
.pack-book .bk-picnic {
  background:
    radial-gradient(circle at 20% 30%, rgba(255, 241, 118, 0.45), transparent 35%),
    radial-gradient(circle at 80% 70%, rgba(129, 212, 250, 0.4), transparent 35%),
    #fffde7;
  border: 2.5pt solid #fff176;
  border-radius: 6mm;
}
.pack-book .bk-picnic .bk-opt {
  border-color: #ffcc80;
  box-shadow: 0 3px 0 #ffe082;
}
.pack-book .bk-balloon {
  font-family: "Fredoka", sans-serif;
  font-size: 24pt;
  font-weight: 700;
  border: 2.5pt solid #b39ddb;
  box-shadow: inset 0 -3mm 0 rgba(0, 0, 0, 0.04);
}
.pack-book .bk-balloon:nth-child(1) { background: #fff3e0; border-color: #ffb74d; }
.pack-book .bk-balloon:nth-child(2) { background: #e8f5e9; border-color: #81c784; }
.pack-book .bk-balloon:nth-child(3) { background: #e3f2fd; border-color: #64b5f6; }
.pack-book .bk-balloon:nth-child(4) { background: #fce4ec; border-color: #f06292; }
.pack-book .bk-balloon:nth-child(5) { background: #f3e5f5; border-color: #ba68c8; }
.pack-book .bk-balloon:nth-child(6) { background: #fffde7; border-color: #fff176; }
.pack-book .bk-balloon:nth-child(7) { background: #e0f7fa; border-color: #4dd0e1; }
.pack-book .bk-balloon:nth-child(8) { background: #fbe9e7; border-color: #ff8a65; }

/* 教具工坊屏幕区：与教材一致的卡通风 */
body {
  background:
    radial-gradient(ellipse 70% 50% at 8% 0%, rgba(255, 213, 79, 0.4), transparent 45%),
    radial-gradient(ellipse 60% 45% at 100% 10%, rgba(129, 212, 250, 0.38), transparent 40%),
    linear-gradient(180deg, #fff9fd 0%, #fffde7 50%, #f3fbff 100%);
}
.workshop .pack-intro h2 {
  font-family: "Fredoka", "Baloo 2", "ZCOOL KuaiLe", sans-serif;
  font-weight: 700;
  color: #e53935;
  letter-spacing: 0.02em;
}
.workshop .tab {
  font-family: "Fredoka", "ZCOOL KuaiLe", sans-serif;
  font-weight: 600;
}
.workshop .tab.is-on {
  background: linear-gradient(135deg, #ff7043, #e53935);
  box-shadow: 0 4px 0 #c62828;
}
.workshop .pack-intro {
  border: 2.5px solid #ffcc80;
  box-shadow: 0 6px 0 #ffe082;
  background: rgba(255, 253, 245, 0.95);
}
.workshop .btn-apple {
  font-family: "Fredoka", "ZCOOL KuaiLe", sans-serif;
  box-shadow: 0 4px 0 #c62828;
}