/* StoryBook Engine ― book.css(見開きの絵本の見た目。ゲーム固有の色は --accent などの変数で上書きする) */
.sb-root {
  --pat: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='64' height='64'%3E%3Cg fill='none' stroke='rgba(140,100,50,0.13)' stroke-width='1'%3E%3Cpath d='M32 19c4.5 4.5 4.5 9 0 13c-4.5-4-4.5-8.500 0-13z'/%3E%3Cpath d='M32 45c4.500-4.500 4.500-9 0-13c-4.500 4-4.500 8.500 0 13z'/%3E%3Cpath d='M19 32c4.500-4.500 9-4.500 13 0c-4 4.500-8.500 4.500-13 0z'/%3E%3Cpath d='M45 32c-4.500-4.500-9-4.500-13 0c4 4.500 8.500 4.500 13 0z'/%3E%3Ccircle cx='32' cy='32' r='2'/%3E%3C/g%3E%3Cg fill='rgba(140,100,50,0.12)'%3E%3Ccircle cx='0' cy='0' r='1.400'/%3E%3Ccircle cx='64' cy='0' r='1.400'/%3E%3Ccircle cx='0' cy='64' r='1.400'/%3E%3Ccircle cx='64' cy='64' r='1.400'/%3E%3C/g%3E%3C/svg%3E"); --paper: #fbf3de; --paper2: #f2e4c4; --ink: #3a2a20; --ink2: #6b5240; --gold: #c79a3b; --fs: 1;
  --desk: #2a1f1b; --cover: #28464c;
  position: fixed; inset: 0; overflow: auto; color: var(--ink);
  font-family: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", "Noto Serif JP", "MS PMincho", serif;
  background:
    radial-gradient(ellipse at 50% 30%, rgba(255, 220, 160, .16), transparent 60%),
    repeating-linear-gradient(92deg, rgba(0, 0, 0, .06) 0 2px, transparent 2px 9px),
    linear-gradient(#3a2a22, #1f1613);
  -webkit-text-size-adjust: 100%;
}
.sb-root *, .sb-root *::before, .sb-root *::after { box-sizing: border-box; }
.sb-root button { font: inherit; color: inherit; cursor: pointer; }
.sb-root [hidden] { display: none !important; }

/* ── 表紙 ── */
.sb-cover { min-height: 100%; display: grid; place-items: center; padding: 24px 14px; }
.sb-cover-card {
  width: min(560px, 100%); text-align: center; padding: 34px 28px 26px; border-radius: 10px 18px 18px 10px;
  color: #f6e7bd; background:
    radial-gradient(ellipse at 30% 10%, rgba(255, 255, 255, .12), transparent 55%),
    linear-gradient(135deg, #2f5560, #1f3a41);
  box-shadow: 0 0 0 3px #1a2d33, 0 0 0 7px #c79a3b, 0 0 0 9px #1a2d33, 0 24px 60px rgba(0, 0, 0, .6), inset 0 0 40px rgba(0, 0, 0, .35);
  animation: sb-rise .8s ease-out both;
}
.sb-cover-eyebrow { margin: 0; letter-spacing: .4em; font-size: .78rem; color: #e8c872; }
.sb-cover-title { margin: .45em 0 .1em; font-size: clamp(1.9rem, 6vw, 2.7rem); letter-spacing: .12em; color: #ffe9a8; text-shadow: 0 2px 0 #12262b, 0 0 18px rgba(255, 220, 120, .35); line-height: 1.35; }
.sb-cover-sub { margin: 0 0 14px; color: #cfe0d8; letter-spacing: .12em; font-size: .95rem; }
.sb-cover-art { margin: 6px auto 16px; width: min(380px, 90%); border-radius: 6px; overflow: hidden; border: 3px solid #e8c872; background: #fbf3de; line-height: 0; }
.sb-cover-art svg { width: 100%; height: auto; display: block; }
.sb-cover-buttons { display: grid; gap: 10px; width: min(340px, 100%); margin: 0 auto; }
.sb-cover-foot { margin: 18px 0 0; font-size: .74rem; color: #9fb8b2; letter-spacing: .1em; }
.sb-btn {
  padding: 12px 18px; border-radius: 999px; border: 2px solid #e8c872; background: rgba(0, 0, 0, .18); color: #ffeab5;
  letter-spacing: .12em; font-size: 1rem; transition: transform .15s, background .15s;
}
.sb-btn:hover, .sb-btn:focus-visible { background: rgba(232, 200, 114, .22); transform: translateY(-1px); outline: none; }
.sb-btn.primary { background: linear-gradient(#f3d27a, #d9a93f); color: #3a2a20; border-color: #fff0b8; font-weight: 700; }
.sb-btn.ghost { border-color: rgba(232, 200, 114, .45); font-size: .88rem; }
.sb-modal-card .sb-btn { color: var(--ink); border-color: #b99a6b; background: #f6ead0; }

/* ── 見開き ── */
.sb-book {
  position: relative; margin: 18px auto 18px; width: min(1180px, 97vw); height: min(760px, calc(100vh - 36px)); min-height: 580px;
  display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: minmax(0, 1fr); filter: drop-shadow(0 22px 28px rgba(0, 0, 0, .55));
  animation: sb-open .7s ease-out both;
}
.sb-book::before, .sb-book::after { content: ""; position: absolute; inset: -9px -11px; border-radius: 10px; z-index: -1; background: linear-gradient(135deg, #3d2d22, #20302f); }
.sb-book::after { inset: -4px -5px; background: repeating-linear-gradient(180deg, #efe1bd 0 2px, #d8c699 2px 3px); border-radius: 6px; }
.sb-spine { position: absolute; left: 50%; top: 0; bottom: 0; width: 56px; margin-left: -28px; z-index: 6; pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(60, 35, 10, .16) 38%, rgba(40, 20, 0, .34) 50%, rgba(60, 35, 10, .16) 62%, transparent); }
.sb-page {
  position: relative; background:
    radial-gradient(ellipse at 50% 0%, rgba(255, 255, 255, .55), transparent 60%),
    repeating-linear-gradient(0deg, rgba(150, 110, 60, .035) 0 1px, transparent 1px 4px),
    var(--paper);
}
.sb-left { border-radius: 14px 0 0 14px; }
.sb-right { border-radius: 0 14px 14px 0; perspective: 2400px; display: grid; grid-template-rows: auto minmax(0, 1fr) auto; padding: 18px 38px 14px 46px; }
.sb-left { background-image: linear-gradient(270deg, rgba(90, 60, 20, .10), transparent 14%), radial-gradient(ellipse at 50% 0%, rgba(255, 255, 255, .55), transparent 60%), repeating-linear-gradient(0deg, rgba(150, 110, 60, .035) 0 1px, transparent 1px 4px), var(--pat); }
.sb-right { background-image: linear-gradient(90deg, rgba(90, 60, 20, .10), transparent 14%), radial-gradient(ellipse at 50% 0%, rgba(255, 255, 255, .55), transparent 60%), repeating-linear-gradient(0deg, rgba(150, 110, 60, .035) 0 1px, transparent 1px 4px), var(--pat); }

/* 文中の印 */
.sb-em { color: var(--accent); font-weight: 700; background: linear-gradient(transparent 64%, rgba(255, 226, 120, .6) 64%); padding: 0 .08em; filter: saturate(1.15) brightness(.85); }
.sb-rainbow { font-weight: 700; padding: 0 .1em; background: linear-gradient(90deg, #e8453c, #f08a2a, #e0b000, #4aa84a, #2f8fd0, #7a52c8, #e8453c); background-size: 220% 100%; -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent; animation: sb-rb 7s linear infinite; text-shadow: none; }
@keyframes sb-rb { to { background-position: 220% 0; } }
/* 左: 挿絵(額縁に入った4:3の絵。下に説明とポケット) */
.sb-left { overflow: hidden; display: flex; flex-direction: column; justify-content: center; gap: 10px; padding: 22px 26px 18px 30px; }
.sb-artwrap { position: relative; z-index: 1; flex: none; width: calc(100% - 44px); margin: 30px auto 26px; }
.sb-art { position: relative; z-index: 1; width: 100%; aspect-ratio: 4 / 3; border: 4px solid #fffaf0; background: #e9dfc6; overflow: hidden; box-shadow: 0 3px 10px rgba(70, 40, 10, .35); }
.sb-svghost { position: absolute; inset: 0; }
.sb-fxlayer { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.sb-svg { width: 100%; height: 100%; display: block; }
.sb-caption { position: relative; z-index: 1; margin: 0; text-align: center; color: var(--ink2); font-size: calc(.82rem * var(--fs)); letter-spacing: .25em; font-style: italic; }
.sb-pocket { position: relative; z-index: 1; flex: none; min-height: 54px; display: flex; flex-wrap: wrap; gap: 8px; align-items: center; padding: 6px 12px;
  background: rgba(255, 247, 224, .9); border: 2px dashed #b99a6b; border-radius: 10px 10px 22px 22px; font-size: calc(.82rem * var(--fs)); }
.sb-pocket-label { color: var(--ink2); letter-spacing: .15em; margin-right: 4px; }
.sb-pocket:not(:has(.sb-slot))::after { content: "からっぽ"; color: #a08c6c; font-size: .8em; }
html[lang="en"] .sb-pocket:not(:has(.sb-slot))::after { content: "empty"; }
.sb-slot { position: relative; width: 42px; height: 42px; border-radius: 50%; background: #fffdf5; border: 2px solid #d3bd8c; display: grid; place-items: center; animation: sb-pop .45s ease-out; }
.sb-slot svg { width: 34px; height: 34px; }
.sb-slot-name { position: absolute; bottom: 48px; left: 50%; transform: translateX(-50%); white-space: nowrap; background: #3a2a20; color: #fff6dc; padding: 2px 8px; border-radius: 6px; font-size: .75rem; opacity: 0; pointer-events: none; transition: opacity .15s; z-index: 5; }
.sb-slot:hover .sb-slot-name, .sb-slot:focus-visible .sb-slot-name { opacity: 1; }
.sb-note { position: absolute; left: 50%; top: 40px; z-index: 8; width: max-content; max-width: 78%; padding: 10px 18px 11px; background: #fff3a6; color: #4a3820; font-size: calc(.95rem * var(--fs)); line-height: 1.6;
  box-shadow: 0 6px 14px rgba(60, 40, 0, .3); border-bottom-right-radius: 14px 5px; opacity: 0; pointer-events: none; transform: translate(-50%, -14px) rotate(-1.6deg); transition: opacity .25s, transform .25s; }
.sb-note.show { opacity: 1; transform: translate(-50%, 0) rotate(-1.6deg); }

/* 絵の中の物 */
.sb-hs { cursor: pointer; outline: none; }
.sb-hsbody { transition: filter .18s, transform .18s; transform-box: fill-box; transform-origin: 50% 100%; }
.sb-hs:hover .sb-hsbody, .sb-hs:focus-visible .sb-hsbody { filter: drop-shadow(0 0 5px #fff8c2) drop-shadow(0 0 2px #ffd25e); transform: translateY(-3px) scale(1.05); }
.sb-tag { opacity: 0; transition: opacity .15s; pointer-events: none; }
.sb-tag rect { fill: #fff8e4; stroke: #4b3326; stroke-width: 1.6; }
.sb-tag text { fill: #3a2a20; font-size: 12.5px; text-anchor: middle; font-family: inherit; }
.sb-hs:hover .sb-tag, .sb-hs:focus-visible .sb-tag, .labels-on .sb-tag { opacity: 1; }
@media (hover: none) { .sb-tag { opacity: 1; } }
.sb-spark { opacity: 0; pointer-events: none; }
.sb-spark path { fill: #ffe27a; stroke: #b98a1d; stroke-width: 1; transform-box: fill-box; transform-origin: center; }
.sparkle-on .sb-spark { opacity: 1; }
.sparkle-on .sb-spark path { animation: sb-twinkle 2.6s ease-in-out infinite; }
.sb-hs.shake .sb-hsbody { animation: sb-shake .45s; }

/* 右: 文章 */
.sb-runner { display: flex; justify-content: space-between; color: var(--ink2); font-size: calc(.8rem * var(--fs)); letter-spacing: .2em; border-bottom: 1px solid rgba(120, 90, 50, .35); padding-bottom: 6px; }
.sb-body { min-height: 0; overflow-y: auto; padding: 14px 6px 8px 0; scrollbar-width: thin; scrollbar-color: #cdb78a transparent; }
.sb-kicker { margin: 4px 0 0; font-size: calc(.78rem * var(--fs)); letter-spacing: .3em; color: var(--accent); }
.sb-title { margin: .15em 0 .55em; font-size: calc(1.55rem * var(--fs)); letter-spacing: .08em; line-height: 1.5; color: var(--ink); border-bottom: 3px double var(--accent); padding-bottom: .3em; }
.sb-orn { margin: 6px 0 10px; text-align: center; color: var(--accent); font-size: 1.2rem; opacity: .8; }
.sb-ribbon { display: inline-block; margin: 6px 0 4px; padding: 3px 18px 3px 14px; background: var(--rc); color: #fff; letter-spacing: .2em; font-size: calc(.82rem * var(--fs)); clip-path: polygon(0 0, 100% 0, calc(100% - 10px) 50%, 100% 100%, 0 100%); }
.sb-text p { text-wrap: pretty; orphans: 2; widows: 2; margin: 0 0 1.15em; font-size: calc(1.08rem * var(--fs)); line-height: 2.05; letter-spacing: .05em; text-indent: 1em; text-align: justify; word-break: normal; line-break: strict; }
.sb-text p:first-child:not(.cont):not(.q)::first-letter { color: var(--accent); }
.sb-text p.cont, .sb-text p.q { text-indent: 0; }
.sb-choices { display: grid; gap: 10px; margin: 18px 0 6px; }
.sb-choice {
  display: flex; align-items: flex-start; gap: 10px; text-align: left; padding: 11px 16px; border: 2px solid rgba(120, 90, 50, .5); border-radius: 12px 4px 12px 4px;
  background: rgba(255, 255, 255, .55); font-size: calc(1.02rem * var(--fs)); line-height: 1.7; letter-spacing: .04em; transition: transform .15s, background .15s, border-color .15s;
}
.sb-choice:hover, .sb-choice:focus-visible { background: #fff8d8; border-color: var(--accent); transform: translateX(3px); outline: none; }
.sb-choice.is-locked { opacity: .6; }
.sb-bullet { color: var(--accent); flex: none; }
.sb-hinttext { margin: 4px 0 0; font-size: calc(.88rem * var(--fs)); color: var(--ink2); text-align: center; letter-spacing: .12em; }
.sb-endmark { margin: 4px 0 6px; text-align: center; color: var(--ink2); letter-spacing: .12em; font-size: calc(.92rem * var(--fs)); }
.sb-endmark.is-new { color: #b4421f; font-weight: 700; }
.sb-turn { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding-top: 8px; border-top: 1px solid rgba(120, 90, 50, .3); min-height: 42px; }
.sb-turnbtn { background: none; border: none; color: var(--ink2); letter-spacing: .15em; padding: 6px 10px; font-size: calc(.95rem * var(--fs)); }
.sb-turnbtn:disabled { opacity: .25; cursor: default; }
.sb-next { color: var(--accent); font-weight: 700; animation: sb-nudge 1.8s ease-in-out infinite; }
.sb-dots { color: var(--accent); letter-spacing: .3em; font-size: .8rem; }
.sb-curl { position: absolute; right: 0; bottom: 0; width: 54px; height: 54px; border: none; z-index: 7; cursor: pointer; border-radius: 0 0 14px 0;
  background: linear-gradient(315deg, #fbf3de 0 50%, #cdb78a 50%, #f1e5c6 60%, transparent 62%); filter: drop-shadow(-3px -3px 4px rgba(60, 35, 10, .35)); transition: width .2s, height .2s; }
.sb-curl:hover { width: 74px; height: 74px; }
.sb-right.fade .sb-body { opacity: 0; transition: opacity .12s; }

/* めくり */
.sb-leaf { position: absolute; inset: 0; z-index: 20; transform-origin: left center; transform-style: preserve-3d; pointer-events: none; }
.sb-leaf.go { animation: sb-flip .78s cubic-bezier(.45, .05, .35, 1) forwards; }
.sb-face { position: absolute; inset: 0; backface-visibility: hidden; -webkit-backface-visibility: hidden; border-radius: 0 14px 14px 0; overflow: hidden;
  background: radial-gradient(ellipse at 50% 0%, rgba(255, 255, 255, .55), transparent 60%), var(--pat), var(--paper); }
.sb-face.back { transform: rotateY(180deg); border-radius: 14px 0 0 14px;
  background: linear-gradient(270deg, rgba(90, 60, 20, .16), transparent 30%), repeating-linear-gradient(0deg, rgba(150, 110, 60, .05) 0 1px, transparent 1px 4px), var(--pat), var(--paper2); }
.sb-face.front::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(60, 35, 10, .22), transparent 40%); opacity: 0; animation: sb-shade .78s ease-in forwards; }
.sb-snap { position: absolute; inset: 0; display: grid; grid-template-rows: auto 1fr auto; padding: 18px 38px 14px 46px; }
.sb-snap .sb-body { overflow: hidden; }

/* しおりメニュー・モーダル */
.sb-menubtn { position: fixed; top: 8px; right: 12px; z-index: 40; width: 42px; height: 42px; border-radius: 50%; border: 2px solid #e8c872; background: rgba(30, 20, 14, .8); font-size: 1.2rem; line-height: 1; }
.sb-menu { position: fixed; top: 56px; right: 12px; z-index: 41; display: grid; min-width: 220px; background: #fbf3de; border: 2px solid #b99a6b; border-radius: 10px; box-shadow: 0 10px 24px rgba(0, 0, 0, .5); overflow: hidden; }
.sb-menu button { text-align: left; padding: 12px 16px; background: none; border: none; border-bottom: 1px solid rgba(120, 90, 50, .25); letter-spacing: .08em; }
.sb-menu button:hover:not(:disabled) { background: #fff3c4; }
.sb-menu button:disabled { opacity: .4; cursor: default; }
.sb-modal { position: fixed; inset: 0; z-index: 60; display: grid; place-items: center; padding: 14px; }
.sb-modal-bg { position: absolute; inset: 0; background: rgba(15, 10, 8, .72); }
.sb-modal-card { position: relative; width: min(520px, 100%); max-height: 90vh; display: flex; flex-direction: column; background: var(--paper); border-radius: 12px; border: 3px double #b99a6b; box-shadow: 0 20px 50px rgba(0, 0, 0, .6); animation: sb-rise .3s ease-out both; }
.sb-modal-card.wide { width: min(760px, 100%); }
.sb-modal-head { display: flex; align-items: center; justify-content: space-between; padding: 14px 18px 8px; border-bottom: 1px solid rgba(120, 90, 50, .3); }
.sb-modal-head h3 { margin: 0; letter-spacing: .15em; }
.sb-x { background: none; border: none; font-size: 1.2rem; padding: 4px 8px; }
.sb-modal-body { padding: 14px 18px 20px; overflow-y: auto; }
.sb-set { margin: 0 0 16px; display: grid; gap: 8px; }
.sb-seg { padding: 6px 14px; margin-right: 6px; border: 2px solid #b99a6b; border-radius: 999px; background: #f6ead0; }
.sb-seg.on { background: #d9a93f; color: #fff; border-color: #a97d1c; }
.sb-toggle { display: flex; gap: 10px; align-items: center; }
.sb-toggle input { width: 20px; height: 20px; }
.sb-shelf-lead { margin: 0 0 8px; letter-spacing: .08em; }
.sb-bar { height: 10px; border-radius: 6px; background: #e7d9b8; overflow: hidden; margin-bottom: 14px; }
.sb-bar i { display: block; height: 100%; background: linear-gradient(90deg, #e8b84a, #d9564b); }
.sb-shelf-sec { margin: 0 0 16px; }
.sb-shelf-sec h4 { margin: 0 0 6px; display: flex; align-items: center; gap: 10px; }
.sb-chip { background: var(--rc); color: #fff; padding: 2px 14px; border-radius: 999px; letter-spacing: .15em; font-size: .85rem; }
.sb-count { color: var(--ink2); font-size: .85rem; }
.sb-shelf-sec ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 3px; }
.sb-shelf-sec li { display: grid; grid-template-columns: 2.2em 1fr; column-gap: 8px; padding: 5px 8px; border-left: 4px solid var(--rc); background: rgba(255, 255, 255, .5); }
.sb-shelf-sec li.lock { opacity: .7; border-left-color: #cbb994; }
.sb-shelf-sec .no { color: var(--ink2); font-size: .8rem; padding-top: .15em; }
.sb-shelf-sec .nm { font-weight: 700; letter-spacing: .06em; }
.sb-shelf-sec .ht { grid-column: 2; font-size: .8rem; color: var(--ink2); line-height: 1.5; }

/* 動き */
@keyframes sb-flip { 0% { transform: rotateY(0); opacity: 1; } 82% { opacity: 1; } 100% { transform: rotateY(-180deg); opacity: 0; } }
@keyframes sb-shade { to { opacity: 1; } }
@keyframes sb-rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
@keyframes sb-open { from { opacity: 0; transform: scale(.97); } to { opacity: 1; transform: none; } }
@keyframes sb-pop { 0% { transform: scale(.2); } 70% { transform: scale(1.18); } 100% { transform: scale(1); } }
@keyframes sb-twinkle { 0%, 100% { transform: scale(.55) rotate(0); opacity: .55; } 50% { transform: scale(1.15) rotate(25deg); opacity: 1; } }
@keyframes sb-shake { 0%, 100% { transform: none; } 25% { transform: translateX(-5px); } 75% { transform: translateX(5px); } }
@keyframes sb-nudge { 0%, 100% { transform: translateX(0); } 50% { transform: translateX(4px); } }
@media (prefers-reduced-motion: reduce) { .sb-root * { animation: none !important; transition: none !important; } }

/* せまい画面: 縦にならべる */
@media (max-width: 900px) {
  .sb-book { grid-template-columns: 1fr; grid-template-rows: auto; margin: 12px auto 22px; height: auto; min-height: 0; width: 98vw; }
  .sb-spine { display: none; }
  .sb-left { border-radius: 12px 12px 0 0; padding: 12px 12px 10px; gap: 8px; }
  .sb-pocket { min-height: 48px; padding: 4px 8px; }
  .sb-slot { width: 38px; height: 38px; } .sb-slot svg { width: 30px; height: 30px; }
  .sb-right { border-radius: 0 0 12px 12px; padding: 14px 18px 12px 20px; min-height: 56vh; grid-template-rows: auto auto auto; }
  .sb-body { height: 58vh; min-height: 300px; overflow-y: auto; }
  .sb-note { top: 26px; }
  .sb-snap { padding: 14px 18px 12px 20px; }
  .sb-leaf { transform-origin: center top; }
  .sb-leaf.go { animation-name: sb-flipv; }
  .sb-curl { display: none; }
  .sb-text p { font-size: calc(1rem * var(--fs)); line-height: 1.85; margin-bottom: 1em; }
  .sb-title { font-size: calc(1.35rem * var(--fs)); }
}
@keyframes sb-flipv { 0% { transform: translateY(0); opacity: 1; } 100% { transform: translateY(-14px) scale(.98); opacity: 0; } }

.sb-soundbtn { right: 62px; font-size: 1.05rem; }
.sb-set input[type=range] { width: 100%; }

/* ── メルヘンな枠と、動くキャラクター ── */
.sb-stage { position: absolute; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; border-radius: inherit; background-repeat: repeat; background-size: 84px 84px; }
.sb-frameorn { position: absolute; inset: -27px; z-index: 2; pointer-events: none; border: 29px solid transparent; border-image-slice: 36; border-image-width: 29px; border-image-repeat: round; filter: hue-rotate(var(--hue, 0deg)) drop-shadow(0 4px 6px rgba(70, 40, 10, .3)); }
.sb-fxbox { position: absolute; inset: 0; pointer-events: none; }
.sb-fxbox.behind { z-index: 1; }
.sb-fxbox.front { z-index: 3; }
.sb-fx { position: absolute; pointer-events: none; will-change: transform, opacity; transform-origin: 50% 100%; }
.sb-fx svg { display: block; width: 100%; height: auto; }
.sb-peekbox { position: absolute; overflow: hidden; pointer-events: none; }
.sb-orbit { position: absolute; width: 0; height: 0; pointer-events: none; animation: fx-spin 9s linear infinite; }
.sb-fx.hot svg { filter: drop-shadow(0 0 5px #fff8c2) drop-shadow(0 0 2px #ffd25e); }
.sb-hs.has-actor .sb-hsbody { opacity: 0; }
.sb-hs.has-actor:hover .sb-hsbody, .sb-hs.has-actor:focus-visible .sb-hsbody { filter: none; transform: none; }

.fx-bob { animation: fx-bob 3.2s ease-in-out infinite alternate; }
.fx-hop { animation: fx-hop 2.8s ease-in-out infinite; }
.fx-sway { animation: fx-sway 3.6s ease-in-out infinite alternate; }
.fx-breathe { animation: fx-breathe 3s ease-in-out infinite; }
.fx-float { animation: fx-float 4s ease-in-out infinite; }
.fx-cross { animation: fx-cross 24s linear infinite; }
.fx-drift { animation: fx-drift 80s linear infinite; }
.fx-fall { animation: fx-fall 14s linear infinite; }
.fx-rise { animation: fx-rise 9s ease-in infinite; }
.fx-twinkle { animation: fx-twinkle 2.6s ease-in-out infinite; }
.fx-crawl { animation: fx-crawl 30s linear infinite; }
.fx-crawl svg { animation: fx-wobble .8s ease-in-out infinite alternate; }
.fx-climb { animation: fx-climb 18s linear infinite; }
.fx-zig { animation: fx-zig 8s ease-in-out infinite; }
.fx-swing { animation: fx-swing 3.2s ease-in-out infinite alternate; transform-origin: 50% 0; }
.fx-peek { animation: fx-peek 11s ease-in-out infinite; }
.fx-jump { animation: fx-jump 7s ease-in-out infinite; opacity: 0; }
.flap svg { animation: fx-flap .32s ease-in-out infinite alternate; transform-origin: 50% 60%; }

@keyframes fx-bob { from { transform: translateY(0) rotate(-1.4deg); } to { transform: translateY(-2.5%) rotate(1.4deg); } }
@keyframes fx-hop { 0%, 55%, 100% { transform: translateY(0) scale(1, 1); } 62% { transform: scale(1.05, .92); } 74% { transform: translateY(-8%) scale(.97, 1.05); } 86% { transform: translateY(0) scale(1.04, .94); } 93% { transform: scale(1, 1); } }
@keyframes fx-sway { from { transform: rotate(-3.5deg); } to { transform: rotate(3.5deg); } }
@keyframes fx-breathe { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.03, 1.06); } }
@keyframes fx-float { 0%, 100% { transform: translate(0, 0) rotate(-3deg); } 50% { transform: translate(3%, -8%) rotate(3deg); } }
@keyframes fx-cross { 0% { transform: translate(-200%, 0); } 20% { transform: translate(calc(var(--dx, 1700%) * .22), -90%); } 45% { transform: translate(calc(var(--dx, 1700%) * .5), 30%); } 70% { transform: translate(calc(var(--dx, 1700%) * .76), -70%); } 100% { transform: translate(var(--dx, 1700%), 0); } }
@keyframes fx-drift { from { transform: translateX(0); } to { transform: translateX(var(--dx, 400%)); } }
@keyframes fx-fall { 0% { transform: translate(0, 0) rotate(0); } 25% { transform: translate(calc(var(--dx, 60%) * .4), calc(var(--dy, 2600%) * .25)) rotate(120deg); } 50% { transform: translate(calc(var(--dx, 60%) * -.1), calc(var(--dy, 2600%) * .5)) rotate(280deg); } 75% { transform: translate(calc(var(--dx, 60%) * .7), calc(var(--dy, 2600%) * .75)) rotate(420deg); } 100% { transform: translate(var(--dx, 60%), var(--dy, 2600%)) rotate(560deg); } }
@keyframes fx-rise { 0% { opacity: 0; transform: translate(0, 0) scale(.6); } 15% { opacity: .9; } 85% { opacity: .7; } 100% { opacity: 0; transform: translate(var(--dx, 20%), var(--dy, -1500%)) scale(1.1); } }
@keyframes fx-twinkle { 0%, 100% { opacity: .15; transform: scale(.5) rotate(0); } 50% { opacity: 1; transform: scale(1.15) rotate(25deg); } }
@keyframes fx-crawl { 0% { transform: translateX(0) scaleX(1); } 49% { transform: translateX(var(--dx, 300%)) scaleX(1); } 50% { transform: translateX(var(--dx, 300%)) scaleX(-1); } 99% { transform: translateX(0) scaleX(-1); } 100% { transform: translateX(0) scaleX(1); } }
@keyframes fx-wobble { from { transform: translateY(0) rotate(-2deg); } to { transform: translateY(-4%) rotate(2deg); } }
@keyframes fx-climb { 0% { transform: translateY(0) rotate(0); } 49% { transform: translateY(var(--dy, 2400%)) rotate(0); } 50% { transform: translateY(var(--dy, 2400%)) rotate(180deg); } 99% { transform: translateY(0) rotate(180deg); } 100% { transform: translateY(0) rotate(0); } }
@keyframes fx-zig { 0%, 100% { transform: translate(0, 0); } 15% { transform: translate(-120%, 60%); } 30% { transform: translate(-40%, 160%); } 45% { transform: translate(-160%, 260%); } 60% { transform: translate(-60%, 380%); } 80% { transform: translate(-150%, 180%); } }
@keyframes fx-swing { from { transform: rotate(-14deg); } to { transform: rotate(14deg); } }
@keyframes fx-peek { 0%, 8% { transform: translateY(var(--bh, 60px)); } 16%, 52% { transform: translateY(0); } 56% { transform: translateY(0) rotate(4deg); } 60% { transform: translateY(0) rotate(-4deg); } 68%, 100% { transform: translateY(var(--bh, 60px)); } }
@keyframes fx-jump { 0%, 60% { opacity: 0; transform: translate(0, 0) rotate(0); } 62% { opacity: 1; } 72% { transform: translate(160%, -220%) rotate(-40deg); opacity: 1; } 82% { transform: translate(320%, 0) rotate(40deg); opacity: 1; } 86%, 100% { opacity: 0; transform: translate(340%, 40%); } }
@keyframes fx-spin { to { transform: rotate(360deg); } }
@keyframes fx-flap { from { transform: scaleY(1); } to { transform: scaleY(.6); } }

@media (max-width: 900px) {
  .sb-artwrap { width: calc(100% - 40px); margin: 26px auto 22px; }
  .sb-frameorn { inset: -22px; border-width: 24px; border-image-width: 24px; }
}

/* ── 枠の演出(正解で光る・まちがいで模様が落ちる) ── */
.sb-frameorn { transition: filter 1s; }
.sb-frameorn.withered { filter: hue-rotate(var(--hue, 0deg)) grayscale(.85) brightness(.8) drop-shadow(0 4px 6px rgba(70, 40, 10, .3)); }
.sb-frameorn.glow { animation: fx-glow 2.1s ease-out; }
.sb-frameorn.shake { animation: fx-fshake .6s; }
.sb-frameorn.spin { animation: fx-fspin 2.4s linear; }
.fx-drop { animation: fx-drop 2s cubic-bezier(.4, 0, 1, 1) 1 both; }
.fx-pop { animation: fx-pop 1.5s ease-out 1 both; }
@keyframes fx-glow {
  0% { filter: hue-rotate(var(--hue, 0deg)) brightness(1) drop-shadow(0 4px 6px rgba(70, 40, 10, .3)); }
  22% { filter: hue-rotate(var(--hue, 0deg)) brightness(1.6) saturate(1.6) drop-shadow(0 0 18px #ffe27a) drop-shadow(0 0 6px #fff); }
  55% { filter: hue-rotate(var(--hue, 0deg)) brightness(1.3) saturate(1.3) drop-shadow(0 0 12px #ffe27a); }
  100% { filter: hue-rotate(var(--hue, 0deg)) brightness(1) drop-shadow(0 4px 6px rgba(70, 40, 10, .3)); }
}
@keyframes fx-fshake { 0%, 100% { transform: translate(0, 0); } 20% { transform: translate(-5px, 0) rotate(-.4deg); } 40% { transform: translate(5px, 0) rotate(.4deg); } 60% { transform: translate(-3px, 0); } 80% { transform: translate(3px, 0); } }
@keyframes fx-fspin { from { filter: hue-rotate(0deg) drop-shadow(0 4px 6px rgba(70, 40, 10, .3)); } to { filter: hue-rotate(360deg) drop-shadow(0 4px 6px rgba(70, 40, 10, .3)); } }
@keyframes fx-drop { 0% { opacity: 1; transform: translate(0, 0) rotate(0); } 85% { opacity: 1; } 100% { opacity: 0; transform: translate(var(--dx, 0), var(--dy, 2400%)) rotate(var(--rot, 200deg)); } }
@keyframes fx-pop { 0% { opacity: 0; transform: scale(.2) rotate(0); } 25% { opacity: 1; transform: scale(1.4) rotate(40deg); } 100% { opacity: 0; transform: scale(.4) rotate(160deg); } }

/* ── 特別なキャラクターの吹き出し ── */
.sb-cameo { position: absolute; right: 12px; bottom: 10px; z-index: 9; display: flex; align-items: flex-end; gap: 4px; cursor: pointer; animation: sb-cam-in .65s cubic-bezier(.3, 1.5, .5, 1) both; }
.sb-cameo.out { animation: sb-cam-out .4s ease-in forwards; }
.sb-camchars { display: flex; align-items: flex-end; }
.sb-camchar { position: relative; animation: fx-bob 2.4s ease-in-out infinite alternate; }
.sb-bubble { position: relative; max-width: 190px; margin-bottom: 40px; padding: 8px 12px 9px; background: #fffdf6; border: 2.5px solid #4b3326; border-radius: 16px 16px 4px 16px; font-size: calc(.82rem * var(--fs)); line-height: 1.55; color: #3a2a20; box-shadow: 2px 3px 0 rgba(75, 51, 38, .25); }
.sb-bubble::after { content: ""; position: absolute; right: -10px; bottom: 8px; border: 8px solid transparent; border-left-color: #4b3326; border-right: 0; }
.sb-bubble::before { content: ""; position: absolute; right: -6px; bottom: 10px; border: 6px solid transparent; border-left-color: #fffdf6; border-right: 0; z-index: 1; }
.sb-bubble b { color: #8a5a2f; font-weight: 700; }
.sb-cameo.hint .sb-bubble { border-color: #8a5e86; } .sb-cameo.hint .sb-bubble::after { border-left-color: #8a5e86; } .sb-cameo.hint .sb-bubble::before { border-left-color: #fffdf6; }
.sb-cameo.hint .sb-bubble b::before { content: "✦ "; color: #c79a1b; }
.sb-cameo.sad .sb-bubble { background: #f1f1f6; border-color: #6a6f88; } .sb-cameo.sad .sb-bubble::after { border-left-color: #6a6f88; } .sb-cameo.sad .sb-bubble::before { border-left-color: #f1f1f6; }
.sb-cameo.cheer .sb-bubble { background: #fff2f0; border-color: #d9564b; } .sb-cameo.cheer .sb-bubble::after { border-left-color: #d9564b; } .sb-cameo.cheer .sb-bubble::before { border-left-color: #fff2f0; }
@keyframes sb-cam-in { from { opacity: 0; transform: translateY(70px) scale(.8); } to { opacity: 1; transform: none; } }
@keyframes sb-cam-out { to { opacity: 0; transform: translateY(50px) scale(.85); } }
@media (max-width: 900px) { .sb-bubble { max-width: 150px; font-size: .78rem; } .sb-cameo { right: 6px; bottom: 6px; } }

/* ── ページをめくるとき: すぐに文字が消えて、裏がわは模様だけ ── */
.sb-face.back { background: var(--wall, none) 0 0 / 84px 84px repeat, linear-gradient(270deg, rgba(90, 60, 20, .16), transparent 30%), repeating-linear-gradient(0deg, rgba(150, 110, 60, .05) 0 1px, transparent 1px 4px), var(--paper2); }
.sb-face.front::before { content: ""; position: absolute; inset: 0; background: var(--wall, none) 0 0 / 84px 84px repeat; opacity: 0; animation: sb-wallin .78s ease-out forwards; }
.sb-leaf.go .sb-snap { animation: sb-snapfade .78s ease-in forwards; }
@keyframes sb-snapfade { 0% { opacity: 1; } 22% { opacity: 0; } 100% { opacity: 0; } }
@keyframes sb-wallin { 0% { opacity: 0; } 24% { opacity: 1; } 100% { opacity: 1; } }

/* ── しばらく考えていると、文字が浮いて光り、虫に変わる(さわると、もとにもどる) ── */
.sb-gone { color: transparent !important; text-shadow: none !important; }
.sb-char { position: absolute; z-index: 14; cursor: pointer; pointer-events: auto; line-height: 1.2; white-space: nowrap; animation: sb-lift .9s ease-out both; }
.sb-char .in { display: inline-block; color: var(--accent, #8a5a2f); font-weight: 700; text-shadow: 0 0 6px #fff2a8, 0 0 14px #ffe27a, 0 0 22px rgba(255, 226, 122, .8); animation: sb-floatchar var(--t, 5s) ease-in-out infinite alternate; will-change: transform; }
.sb-char.bug .in { color: inherit; text-shadow: none; filter: drop-shadow(1px 2px 1px rgba(60, 35, 10, .35)); }
.sb-char.bug .in svg { display: block; width: 100%; height: auto; animation: fx-wobble .35s ease-in-out infinite alternate; }
.sb-char.home { animation: none; }
@keyframes sb-lift { from { transform: translateY(0) scale(1); } to { transform: translateY(-8px) scale(1.22); } }
@keyframes sb-floatchar { 0% { transform: translate(0, 0) rotate(0); } 50% { transform: translate(var(--x1, 12px), var(--y1, -18px)) rotate(var(--r1, 10deg)); } 100% { transform: translate(var(--x2, -10px), var(--y2, -30px)) rotate(var(--r2, -12deg)); } }

/* よみあげボタン(2026-10-12) */
.sb-read { white-space: nowrap; }
.sb-read.on { color: var(--accent, #b04a2a); font-weight: bold; }

/* 大人の激ムズ版(2026-10-12): メモ帳・時刻 */
.sb-memobtn { right: 112px; font-size: 1.05rem; }
.sb-memo { width: 100%; box-sizing: border-box; min-height: 220px; padding: 10px 12px; border: 2px solid #b99a6b; border-radius: 8px; background: #fbf3df; color: #3a2a1a; font: inherit; line-height: 1.7; resize: vertical; }

/* ── 真の結末: コングラッチュレーション(虹色) ── */
.sb-congrats { margin: 4px 0 2px; text-align: center; font-size: calc(1.3rem * var(--fs)); font-weight: 700; letter-spacing: .05em; line-height: 1.5; white-space: nowrap;
  background: linear-gradient(90deg, #e8453c, #f08a2a, #e0b000, #4aa84a, #2f8fd0, #7a52c8, #e8453c); background-size: 220% 100%;
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent; animation: sb-rb 5s linear infinite; }
.sb-congrats::before, .sb-congrats::after { content: "✦"; -webkit-text-fill-color: #e0b000; color: #e0b000; font-size: .6em; margin: 0 .5em; vertical-align: .25em; animation: sb-twinkle 1.6s ease-in-out infinite; }
.sb-congrats::after { animation-delay: .8s; }
.sb-ribbon.rb { background: linear-gradient(90deg, #e8453c, #f08a2a, #e0b000, #4aa84a, #2f8fd0, #7a52c8); text-shadow: 0 1px 2px rgba(0, 0, 0, .35); }
.sb-title .sb-rainbow { font-size: 1.05em; }
@keyframes sb-twinkle { 0%, 100% { opacity: .35; transform: scale(.8); } 50% { opacity: 1; transform: scale(1.15); } }
@media (prefers-reduced-motion: reduce) { .sb-congrats, .sb-congrats::before, .sb-congrats::after { animation: none; } }