/* ============================================================
   LUMI · 心动玩偶 — 暮夜玫瑰 / Dusk Rose aesthetic
   ============================================================ */
:root {
  --bg-0: #070509;
  --bg-1: #160b12;
  --bg-2: #2a1020;
  --rose: #e8a0b4;
  --rose-dim: rgba(232, 160, 180, 0.55);
  --gold: #d8b78a;
  --ink: #f3e9ec;
  --ink-dim: rgba(243, 233, 236, 0.55);
  --glass: rgba(22, 12, 19, 0.62);
  --glass-border: rgba(232, 160, 180, 0.18);
  --font-display: 'Cormorant Garamond', 'Noto Serif SC', serif;
  --font-serif: 'Noto Serif SC', serif;
  --font-body: 'Noto Sans SC', sans-serif;
}
body[data-theme="midnight"] {
  --bg-1: #0a0f1e; --bg-2: #101a36;
  --rose: #9fb8e8; --rose-dim: rgba(159, 184, 232, 0.55);
  --gold: #8ad0d8; --glass: rgba(10, 14, 26, 0.62);
  --glass-border: rgba(159, 184, 232, 0.18);
}
body[data-theme="dawn"] {
  --bg-1: #1e1009; --bg-2: #3a2010;
  --rose: #e8bc8f; --rose-dim: rgba(232, 188, 143, 0.55);
  --gold: #e89f6a; --glass: rgba(28, 16, 9, 0.62);
  --glass-border: rgba(232, 188, 143, 0.2);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; overflow: hidden; }
body {
  background: var(--bg-0);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 300;
  cursor: none;
  user-select: none;
  -webkit-user-select: none;
}

/* ---------- 背景氛围 ---------- */
.bg-atmosphere { position: fixed; inset: 0; z-index: 0; pointer-events: none; }
.bg-gradient {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 70% 55% at 50% 38%, var(--bg-2) 0%, transparent 70%),
    radial-gradient(ellipse 120% 80% at 50% 110%, var(--bg-1) 0%, transparent 60%),
    var(--bg-0);
  transition: background 1.2s ease;
}
.bg-vignette {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 90% 90% at 50% 50%, transparent 55%, rgba(0,0,0,0.55) 100%);
}
.bg-grain { position: absolute; inset: 0; opacity: 0.05; }
.bg-grain::before {
  content: ''; position: absolute; inset: -100%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 8s steps(10) infinite;
}
@keyframes grain {
  0%,100% { transform: translate(0,0); } 10% { transform: translate(-5%,-8%); }
  30% { transform: translate(3%,-12%); } 50% { transform: translate(-8%,4%); }
  70% { transform: translate(6%,8%); } 90% { transform: translate(-3%,5%); }
}

#stage { position: fixed; inset: 0; z-index: 1; display: block; }

/* ---------- 自定义光标 ---------- */
.cursor-dot, .cursor-ring {
  position: fixed; top: 0; left: 0; z-index: 200; pointer-events: none;
  border-radius: 50%; transform: translate(-50%, -50%);
}
.cursor-dot {
  width: 6px; height: 6px; background: var(--rose);
  box-shadow: 0 0 8px var(--rose), 0 0 20px var(--rose-dim);
}
.cursor-ring {
  width: 32px; height: 32px;
  border: 1px solid var(--rose-dim);
  transition: width .25s ease, height .25s ease, border-color .25s ease;
}
.cursor-ring.is-down { width: 20px; height: 20px; border-color: var(--gold); }
.cursor-ring.is-hover { width: 46px; height: 46px; border-color: var(--gold); }
@media (pointer: coarse) { .cursor-dot, .cursor-ring { display: none; } body { cursor: auto; } }

/* ---------- 标题 ---------- */
.masthead {
  position: fixed; top: 36px; left: 44px; z-index: 10; pointer-events: none;
  animation: fadeSlideIn 1.4s cubic-bezier(.2,.8,.2,1) .3s both;
}
.masthead__title {
  font-family: var(--font-display);
  font-size: 64px; font-weight: 400; letter-spacing: 0.32em;
  line-height: 1; color: var(--ink);
  text-shadow: 0 0 30px var(--rose-dim);
}
.masthead__sub {
  margin-top: 10px;
  font-family: var(--font-serif); font-weight: 300;
  font-size: 13px; letter-spacing: 0.42em; color: var(--rose-dim);
}
.masthead__rule {
  margin-top: 16px; width: 72px; height: 1px;
  background: linear-gradient(90deg, var(--gold), transparent);
}
@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 气泡 ---------- */
.speech-bubble {
  position: fixed; z-index: 15; pointer-events: none;
  max-width: 260px; padding: 12px 18px;
  background: var(--glass);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 18px 18px 18px 4px;
  font-family: var(--font-serif); font-size: 15px; font-weight: 500;
  color: var(--ink); letter-spacing: 0.06em; line-height: 1.5;
  box-shadow: 0 8px 32px rgba(0,0,0,0.45), inset 0 1px 0 rgba(255,255,255,0.06);
  opacity: 0; transform: translate(-50%, -100%) scale(0.85);
  transition: opacity .3s ease, transform .35s cubic-bezier(.34,1.56,.64,1);
}
.speech-bubble.is-visible { opacity: 1; transform: translate(-50%, -115%) scale(1); }
.speech-bubble::after {
  content: '♥'; position: absolute; right: 12px; bottom: 8px;
  font-size: 9px; color: var(--rose-dim);
}

/* ---------- 关节标记 ---------- */
#jointMarkers { position: fixed; inset: 0; z-index: 12; pointer-events: none; }
.joint-marker {
  position: absolute; width: 14px; height: 14px;
  transform: translate(-50%, -50%);
  border-radius: 50%; pointer-events: auto; cursor: none;
  background: radial-gradient(circle, var(--gold) 0%, transparent 65%);
  border: 1px solid var(--rose-dim);
  box-shadow: 0 0 10px var(--rose-dim);
  transition: box-shadow .2s ease, border-color .2s ease;
}
.joint-marker:hover, .joint-marker.is-active {
  border-color: var(--gold);
  box-shadow: 0 0 16px var(--gold), 0 0 4px #fff inset;
}
.joint-marker .joint-tip {
  position: absolute; bottom: 18px; left: 50%; transform: translateX(-50%);
  white-space: nowrap; font-size: 11px; letter-spacing: 0.15em;
  color: var(--ink); background: var(--glass); padding: 3px 9px;
  border: 1px solid var(--glass-border); border-radius: 8px;
  opacity: 0; transition: opacity .2s; pointer-events: none;
}
.joint-marker:hover .joint-tip, .joint-marker.is-active .joint-tip { opacity: 1; }

/* ---------- 控制面板 ---------- */
.panel {
  position: fixed; top: 50%; right: 28px; z-index: 20;
  transform: translateY(-50%);
  width: 308px; max-height: 82vh;
  display: flex; flex-direction: column;
  background: var(--glass);
  backdrop-filter: blur(24px) saturate(1.3); -webkit-backdrop-filter: blur(24px) saturate(1.3);
  border: 1px solid var(--glass-border);
  border-radius: 22px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.07);
  transition: transform .5s cubic-bezier(.4,0,.2,1), opacity .4s ease;
  animation: fadeSlideIn 1.2s cubic-bezier(.2,.8,.2,1) .6s both;
}
.panel.is-collapsed { transform: translateY(-50%) translateX(calc(100% + 12px)); }
.panel__collapse {
  position: absolute; left: -34px; top: 50%; transform: translateY(-50%);
  width: 26px; height: 64px;
  background: var(--glass); border: 1px solid var(--glass-border);
  border-radius: 10px 0 0 10px; color: var(--rose-dim);
  font-size: 12px; cursor: none;
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  transition: color .2s;
}
.panel__collapse:hover { color: var(--gold); }
.panel.is-collapsed .panel__collapse { transform: translateY(-50%) rotate(180deg); border-radius: 0 10px 10px 0; }

.panel__tabs {
  display: flex; gap: 2px; padding: 10px 12px 0;
  border-bottom: 1px solid var(--glass-border);
}
.tab {
  flex: 1; padding: 10px 2px 12px;
  background: none; border: none; cursor: none;
  font-family: var(--font-serif); font-size: 13.5px; font-weight: 500;
  letter-spacing: 0.2em; color: var(--ink-dim);
  position: relative; transition: color .25s;
}
.tab::after {
  content: ''; position: absolute; left: 25%; right: 25%; bottom: -1px; height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0; transition: opacity .25s;
}
.tab:hover { color: var(--ink); }
.tab.is-active { color: var(--rose); }
.tab.is-active::after { opacity: 1; }

.tab-page {
  display: none; padding: 18px 20px 22px;
  overflow-y: auto; overscroll-behavior: contain;
}
.tab-page.is-active { display: block; animation: pageIn .35s ease both; }
@keyframes pageIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.tab-page::-webkit-scrollbar { width: 4px; }
.tab-page::-webkit-scrollbar-thumb { background: var(--glass-border); border-radius: 4px; }

.panel__heading {
  font-family: var(--font-serif); font-size: 17px; font-weight: 700;
  letter-spacing: 0.18em; color: var(--ink); margin-bottom: 8px;
}
.panel__label {
  font-size: 11px; font-weight: 500; letter-spacing: 0.3em;
  color: var(--gold); margin: 18px 0 10px;
  display: flex; align-items: center; gap: 8px;
}
.panel__label::after { content: ''; flex: 1; height: 1px; background: var(--glass-border); }
.panel__note { font-size: 12px; line-height: 1.8; color: var(--ink-dim); letter-spacing: 0.05em; }
.panel__note b { color: var(--rose); font-weight: 500; }
kbd {
  font-family: var(--font-body); font-size: 10px; padding: 1px 5px;
  border: 1px solid var(--glass-border); border-radius: 4px; color: var(--rose);
}

/* chips */
.chip-row { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 4px; }
.chip {
  padding: 7px 14px; background: rgba(255,255,255,0.04);
  border: 1px solid var(--glass-border); border-radius: 999px;
  color: var(--ink-dim); font-family: var(--font-serif);
  font-size: 12.5px; letter-spacing: 0.12em; cursor: none;
  transition: all .25s ease;
}
.chip:hover { color: var(--ink); border-color: var(--rose-dim); background: rgba(232,160,180,0.08); }
.chip.is-active {
  color: var(--bg-0); background: var(--rose); border-color: var(--rose);
  box-shadow: 0 0 18px var(--rose-dim);
}
.chip--ghost { border-style: dashed; }

/* switch */
.switch-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 9px 0; font-size: 13px; letter-spacing: 0.08em; color: var(--ink-dim);
  cursor: none;
}
.switch-row--accent { color: var(--rose); font-weight: 500; }
.switch-row input { display: none; }
.switch-row i {
  width: 38px; height: 20px; border-radius: 999px; position: relative;
  background: rgba(255,255,255,0.07); border: 1px solid var(--glass-border);
  transition: all .3s ease; flex-shrink: 0;
}
.switch-row i::before {
  content: ''; position: absolute; top: 2px; left: 3px;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--ink-dim); transition: all .3s cubic-bezier(.34,1.56,.64,1);
}
.switch-row input:checked + i { background: rgba(232,160,180,0.25); border-color: var(--rose-dim); }
.switch-row input:checked + i::before { left: 19px; background: var(--rose); box-shadow: 0 0 8px var(--rose-dim); }

/* sliders */
.slider-group { margin-bottom: 6px; border: 1px solid transparent; border-radius: 12px; }
.slider-group summary {
  list-style: none; padding: 8px 10px; font-family: var(--font-serif);
  font-size: 13px; letter-spacing: 0.15em; color: var(--ink-dim);
  cursor: none; border-radius: 10px; transition: all .2s;
  display: flex; justify-content: space-between; align-items: center;
}
.slider-group summary::-webkit-details-marker { display: none; }
.slider-group summary::after { content: '＋'; color: var(--gold); font-size: 12px; }
.slider-group[open] summary::after { content: '－'; }
.slider-group summary:hover { color: var(--ink); background: rgba(255,255,255,0.03); }
.slider-group[open] { border-color: var(--glass-border); background: rgba(0,0,0,0.18); }
.slider-group .group-body { padding: 4px 12px 12px; }

.slider-row { display: grid; grid-template-columns: 70px 1fr 34px; align-items: center; gap: 8px; margin: 7px 0; }
.slider-row label { font-size: 11px; letter-spacing: 0.08em; color: var(--ink-dim); white-space: nowrap; overflow: hidden; }
.slider-row output { font-size: 10px; color: var(--gold); text-align: right; font-variant-numeric: tabular-nums; }
input[type="range"] {
  -webkit-appearance: none; appearance: none; height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, var(--rose-dim), var(--glass-border));
  outline: none; cursor: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 12px; height: 12px; border-radius: 50%;
  background: var(--rose); border: 1px solid rgba(255,255,255,0.4);
  box-shadow: 0 0 8px var(--rose-dim); cursor: none;
  transition: transform .15s;
}
input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.3); }
input[type="range"]::-moz-range-thumb {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--rose); border: 1px solid rgba(255,255,255,0.4); cursor: none;
}

/* file btn */
.file-btn {
  display: block; text-align: center; padding: 11px;
  margin-top: 4px; border: 1px dashed var(--rose-dim); border-radius: 12px;
  font-family: var(--font-serif); font-size: 13px; letter-spacing: 0.2em;
  color: var(--rose); cursor: none; transition: all .25s;
}
.file-btn:hover { background: rgba(232,160,180,0.08); border-color: var(--rose); box-shadow: 0 0 20px rgba(232,160,180,0.15); }

/* ---------- 底部提示 ---------- */
.hint-bar {
  position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%);
  z-index: 10; display: flex; align-items: center; gap: 16px;
  padding: 10px 26px;
  background: var(--glass); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border); border-radius: 999px;
  font-size: 11.5px; letter-spacing: 0.18em; color: var(--ink-dim);
  animation: fadeSlideIn 1.2s cubic-bezier(.2,.8,.2,1) 1s both;
  pointer-events: none; white-space: nowrap;
}
.hint-bar i { width: 1px; height: 12px; background: var(--glass-border); }

/* ---------- 加载遮罩 ---------- */
.loader {
  position: fixed; inset: 0; z-index: 100;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 22px; background: var(--bg-0);
  transition: opacity .9s ease, visibility .9s;
}
.loader.is-done { opacity: 0; visibility: hidden; }
.loader__heart {
  width: 22px; height: 22px; background: var(--rose);
  transform: rotate(45deg); position: relative;
  animation: heartbeat 1.2s ease-in-out infinite;
  box-shadow: 0 0 40px var(--rose-dim);
}
.loader__heart::before, .loader__heart::after {
  content: ''; position: absolute; width: 22px; height: 22px;
  border-radius: 50%; background: var(--rose);
}
.loader__heart::before { left: -11px; }
.loader__heart::after { top: -11px; }
@keyframes heartbeat {
  0%,100% { transform: rotate(45deg) scale(1); }
  25% { transform: rotate(45deg) scale(1.18); }
  40% { transform: rotate(45deg) scale(0.96); }
  55% { transform: rotate(45deg) scale(1.1); }
}
.loader__title {
  font-family: var(--font-display); font-size: 40px; letter-spacing: 0.5em;
  margin-left: 0.5em; color: var(--ink); text-shadow: 0 0 30px var(--rose-dim);
}
.loader__bar {
  width: 220px; height: 2px; border-radius: 2px;
  background: rgba(255,255,255,0.08); overflow: hidden;
}
.loader__fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--rose), var(--gold));
  box-shadow: 0 0 12px var(--rose); transition: width .3s ease;
}
.loader__text { font-size: 12px; letter-spacing: 0.35em; color: var(--ink-dim); }

/* ---------- 照片生成形象覆盖层 ---------- */
.photo-overlay {
  position: fixed; inset: 0; z-index: 80;
  display: flex; align-items: center; justify-content: center;
  background: rgba(5, 3, 7, 0.72);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  animation: pageIn .3s ease both;
}
.photo-overlay__box {
  width: min(920px, 94vw); height: min(680px, 88vh);
  display: flex; flex-direction: column;
  background: var(--glass);
  border: 1px solid var(--glass-border); border-radius: 20px;
  box-shadow: 0 32px 80px rgba(0,0,0,0.6);
  overflow: hidden;
}
.photo-overlay__bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 18px;
  font-family: var(--font-serif); font-size: 14px; letter-spacing: 0.2em;
  color: var(--rose); border-bottom: 1px solid var(--glass-border);
}
.photo-overlay__close {
  background: none; border: 1px solid var(--glass-border); border-radius: 50%;
  width: 28px; height: 28px; color: var(--ink-dim); cursor: none;
  transition: all .2s;
}
.photo-overlay__close:hover { color: var(--ink); border-color: var(--rose-dim); }
.photo-overlay__box iframe { flex: 1; border: none; width: 100%; background: #16121a; }
.photo-overlay__tip {
  padding: 9px 18px; font-size: 11.5px; letter-spacing: 0.12em;
  color: var(--ink-dim); border-top: 1px solid var(--glass-border); text-align: center;
}

/* ---------- 响应式 ---------- */
@media (max-width: 760px) {
  .masthead { top: 20px; left: 22px; }
  .masthead__title { font-size: 40px; }
  .panel { right: 12px; width: min(280px, calc(100vw - 24px)); max-height: 64vh; }
  .hint-bar { display: none; }
}