:root{
  --ink:#3E2723; --ink-2:#5D4037; --cream:#FFF8E1; --cream-2:#FFE0B2;
  --bg:#FFFDE7; --bar:rgba(255,253,231,.95); --accent:#FFA000; --accent-2:#F57C00;
  --purple:#8D6E63; --sun:#FFE082; --title:#E65100; --sky:linear-gradient(180deg,#A5D6A7,#FFF8E1 70%);
  --sci-bg:#FFF3E0; --r:28px; --scene-bg:linear-gradient(180deg,#81C784 0%,#C8E6C9 50%,#FFE0B2 100%);
  --font-d:"ZCOOL KuaiLe","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-b:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
body{background:var(--bg);color:var(--ink)}
.scene-stage{background:linear-gradient(180deg,#81C784 0%,#A5D6A7 45%,#FFE0B2 100%)}

/* story page extras — soft kid colors, layered scene, flip, games */
.story-disclaimer{margin:0;padding:8px 14px;font-size:13px;opacity:.85;text-align:center}
.hero-story{display:grid;gap:16px;padding:calc(80px + env(safe-area-inset-top,0px)) 18px 28px;max-width:980px;margin:0 auto}
.hero-story .cover-emoji{font-size:72px;line-height:1;text-align:center;filter:drop-shadow(0 8px 0 rgba(0,0,0,.12))}
.hero-story h1{font-family:var(--font-d);font-size:clamp(28px,6vw,42px);margin:0;text-align:center;color:var(--title,#E53935)}
.hero-story .lead{text-align:center;font-size:18px;color:var(--ink-2);margin:0}
.scene-wrap{max-width:980px;margin:0 auto;padding:8px 16px 24px}
.scene-stage{position:relative;height:min(52vw,320px);min-height:220px;border-radius:28px;overflow:hidden;border:4px solid var(--ink);box-shadow:0 8px 0 var(--ink);background:var(--scene-bg,#c8e6c9);touch-action:manipulation}
.layer{position:absolute;inset:0;pointer-events:none}
.layer .hot{pointer-events:auto;position:absolute;min-width:48px;min-height:48px;display:flex;align-items:center;justify-content:center;font-size:36px;border:0;background:transparent;cursor:pointer;border-radius:16px;transition:transform .15s}
.layer .hot:active,.layer .hot.pop{transform:scale(1.18)}
.layer-back{z-index:1}.layer-mid{z-index:2}.layer-fore{z-index:3}
.flip-row{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:16px}
.flip-card{width:140px;height:160px;perspective:800px}
.flip-card .in{position:relative;width:100%;height:100%;transform-style:preserve-3d;transition:transform .55s cubic-bezier(.3,1.4,.5,1);border-radius:20px}
.flip-card.flip .in{transform:rotateY(180deg)}
.flip-card .face{position:absolute;inset:0;backface-visibility:hidden;border:3px solid var(--ink);border-radius:20px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;padding:10px;background:#fff;box-shadow:0 5px 0 var(--ink);font-family:var(--font-d);cursor:pointer;min-height:44px;touch-action:manipulation}
.flip-card .face.back{transform:rotateY(180deg);background:var(--cream-2,#FFE0D0)}
.flip-card .face .big{font-size:42px}
.story-body{max-width:720px;margin:0 auto;padding:8px 18px 28px;display:grid;gap:14px}
.story-body .para{background:#fff;border:3px solid var(--ink);border-radius:20px;padding:14px 16px;box-shadow:0 4px 0 var(--ink);font-size:18px;line-height:1.55;color:var(--ink)}
.story-body .para .n{display:inline-flex;width:28px;height:28px;align-items:center;justify-content:center;border-radius:999px;background:var(--accent);color:#fff;font-family:var(--font-d);font-size:14px;margin-right:8px}
.play-sec{max-width:980px;margin:0 auto;padding:8px 16px 36px}
.play-block{background:rgba(255,255,255,.72);border:3px solid var(--ink);border-radius:24px;padding:16px;margin-bottom:16px;box-shadow:0 6px 0 var(--ink)}
.play-block h3{font-family:var(--font-d);margin:0 0 8px;font-size:22px}
.play-block p.hint{margin:0 0 12px;color:var(--ink-2);font-size:15px}
.choice-row,.grow-row{display:flex;flex-wrap:wrap;gap:12px}
.choice-btn,.grow-btn{min-height:48px;min-width:48px;padding:12px 18px;font-family:var(--font-d);font-size:17px;border:3px solid var(--ink);border-radius:18px;background:#fff;box-shadow:0 4px 0 var(--ink);cursor:pointer;touch-action:manipulation}
.choice-btn.ok{background:#C8E6C9;outline:3px solid #2E7D32}
.choice-btn.bad{background:#FFCDD2;outline:3px solid #C62828}
.choice-btn:disabled,.grow-btn:disabled{opacity:.7;cursor:default}
.drag-board{display:grid;gap:12px}
.drag-items{display:flex;flex-wrap:wrap;gap:10px}
.drop-zone{min-height:72px;border:3px dashed var(--ink);border-radius:18px;background:rgba(255,255,255,.55);display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:10px;touch-action:manipulation}
.drop-zone.over,.drop-zone.target-on{background:var(--sun,#FFE08A)}
.sitem{font-family:var(--font-d);font-size:16px;padding:12px 16px;min-height:48px;background:#fff;border:3px solid var(--ink);border-radius:16px;box-shadow:0 4px 0 var(--ink);cursor:grab;user-select:none;touch-action:manipulation;display:inline-flex;align-items:center;gap:6px}
.sitem.picked{outline:4px solid var(--sun,#FFE08A);outline-offset:3px;background:var(--sun,#FFE08A)}
.sitem.placed{opacity:.35;pointer-events:none}
.grow-track{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:10px;min-height:56px}
.grow-slot{min-width:64px;min-height:56px;border:3px dashed var(--ink);border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:28px;background:#fff}
.foot-note{text-align:center;padding:8px 16px 40px;color:var(--ink-2);font-size:15px}
.toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;padding:10px 22px;border-radius:999px;font-family:var(--font-d);opacity:0;pointer-events:none;transition:.3s;z-index:100}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.pseudo3d{transform:perspective(600px) rotateX(8deg) rotateY(-6deg);transition:transform .35s}
.pseudo3d:active,.pseudo3d.pulse{transform:perspective(600px) rotateX(2deg) rotateY(4deg) scale(1.04)}
@media (max-width:700px){
  .hero-story .cover-emoji{font-size:56px}
  .scene-stage{min-height:200px}
  .flip-card{width:120px;height:140px}
}

/* visual assets — soft watercolor covers + layered scene */
.hero-story .cover-art{display:block;width:min(100%,520px);max-height:none;aspect-ratio:4/3;object-fit:cover;border-radius:28px;border:4px solid var(--ink);box-shadow:0 10px 0 var(--ink);margin:0 auto 8px;background:#fff}
.scene-stage{background-image:url("img/scene-back.jpg");background-size:cover;background-position:center}
/* scene-mid/fore 暂不用整幅 JPG 叠 opacity（会发灰）；触控热点仍在 .layer 按钮上 */
@media (max-width:640px){.hero-story .cover-art{max-height:200px;border-width:3px}}