/* 能量屏保 · 前端样式
   有意采用单一深色"墨金"主题，不做浅色模式——产品本体就是一张深色能量壁纸，
   浅色界面会削弱这个基调，属于设计取舍而非遗漏。 */

:root {
  --ink: #0a0908;
  --ground: #12100c;
  --ground-2: #17130f;
  --card: #1a1611;
  --text: #e8dcc8;
  --text-soft: #a8987c;
  --text-faint: #6e6250;
  --gold: #d4af64;
  --gold-soft: #b8944e;
  --cinnabar: #a83228;
  --rule: rgba(212, 175, 100, 0.16);
  --font-display: "Songti SC", "Noto Serif SC", "STSong", serif;
  --font-body: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
}

[hidden] { display: none !important; }
.brand-home { border: 0; background: none; cursor: pointer; padding: 0; white-space: nowrap; }
.eyebrow { margin: 0; color: var(--gold); font-size: .73rem; letter-spacing: .18em; }
.hero-title { font-size: clamp(1.7rem, 7vw, 2.05rem); line-height: 1.5; }
.sample-gallery { display: flex; gap: .75rem; overflow-x: auto; padding: .3rem 0 .6rem; }
.sample-gallery figure { flex: 0 0 40%; margin: 0; }
.sample-gallery img { display: block; width: 100%; border-radius: 16px; border: 1px solid var(--rule); }
.sample-gallery figcaption { text-align: center; color: var(--text-soft); font-size: .75rem; margin-top: .4rem; }
.login-card { display: grid; gap: 1rem; border: 1px solid var(--rule); border-radius: 16px; padding: 1.2rem; background: var(--card); }
.login-card h2, .section-label { margin: 0; font-size: 1.05rem; font-family: var(--font-display); }
.auth-mode-tabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: .35rem; padding: .25rem; border: 1px solid var(--rule); border-radius: 10px; background: var(--ground); }
.auth-mode-tab { border: 0; border-radius: 7px; padding: .65rem .3rem; color: var(--text-soft); background: transparent; font: inherit; font-size: .86rem; cursor: pointer; }
.auth-mode-tab[aria-selected="true"] { color: #1a1108; background: var(--gold); font-weight: 700; }
.auth-panel { display: grid; gap: .9rem; }
.login-card .field-row { flex-wrap: wrap; }
.login-card .grow { min-width: 110px; }
.field input[type="email"], .field input:not([type]), .field select, #input-redeem {
  width: 100%; min-width: 0; border: 1px solid var(--rule); border-radius: 8px; padding: .75rem .85rem;
  color: var(--text); background: var(--ground); font: inherit; font-size: 1rem;
}
.privacy-note, details { color: var(--text-soft); font-size: .8rem; }
details summary { cursor: pointer; }
.style-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: .75rem; }
.style-card { overflow: hidden; padding: 0; border: 1px solid var(--rule); border-radius: 12px; background: var(--card); color: var(--text); cursor: pointer; }
.style-card img { display: block; width: 100%; aspect-ratio: 1080/2340; object-fit: cover; }
.style-card span { display: block; padding: .65rem .3rem; font-size: .78rem; }
.style-card[data-selected="true"] { border-color: var(--gold); box-shadow: 0 0 0 2px var(--gold-soft); }
button.wish-opt { font: inherit; color: var(--text); text-align: left; }
.history-list { display: grid; gap: .75rem; }
.history-item { border: 1px solid var(--rule); border-radius: 10px; padding: 1rem; color: var(--text); background: var(--card); text-align: left; cursor: pointer; }
.canvas-wrap { background: #0a0908; overflow: hidden; }
.lock-overlay { position: absolute; inset: 0; pointer-events: none; display: flex; align-items: center; flex-direction: column; padding-top: 12%; color: #fff; text-shadow: 0 2px 12px #000; }
.lock-overlay strong { font: 600 4rem/1.2 var(--font-body); }
.lock-overlay span { font-size: .8rem; }
.lock-overlay p { margin-top: auto; margin-bottom: 18%; padding: .7rem 1rem; border-radius: 12px; background: #ffffff25; font-size: .85rem; }
.result-panel { gap: .9rem; }
.field input[type="range"] { width: 100%; accent-color: var(--gold); }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 4px; }
@media (max-width: 380px) { .app-header { padding: .8rem .65rem; } .header-actions { gap: .25rem; flex-wrap: wrap; justify-content: flex-end; } .stage { padding: 1.1rem .85rem 2rem; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; } }

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background:
    radial-gradient(ellipse at 50% 0%, #1a1510 0%, transparent 55%),
    linear-gradient(160deg, var(--ink) 0%, var(--ground) 45%, #0d0b09 100%);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.app {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  max-width: 460px;
  margin: 0 auto;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 1.25rem;
  border-bottom: 1px solid var(--rule);
}
.brand {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--gold);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.quota {
  font-size: 0.78rem;
  color: var(--text-soft);
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: 0.25rem 0.7rem;
}
.quota b { color: var(--gold); font-weight: 700; }
.header-logout {
  font-size: 0.78rem;
  color: var(--text-soft);
  background: transparent;
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: 0.25rem 0.7rem;
  font-family: var(--font-body);
  cursor: pointer;
}
.header-logout:hover { color: var(--text); border-color: var(--gold-soft); }

.stage {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 1.5rem 1.25rem 2.5rem;
}

.screen { display: none; flex-direction: column; gap: 1.1rem; }
.screen[data-active="true"] { display: flex; }

.screen-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin: 0.2rem 0 0;
  text-wrap: balance;
}
.screen-lede {
  color: var(--text-soft);
  font-size: 0.92rem;
  margin: 0 0 0.4rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--text-soft);
}
.field.grow { flex: 1; }
.field input[type="text"],
.field input[type="tel"],
.field input[type="date"],
.field input[type="time"] {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 0.75rem 0.85rem;
  color: var(--text);
  font-size: 1rem;
  font-family: var(--font-body);
  outline: none;
}
.field input:focus { border-color: var(--gold-soft); }
.field input:disabled { opacity: 0.4; }

.field-display {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 0.75rem 0.85rem;
  color: var(--text);
  font-size: 1rem;
  font-family: var(--font-body);
  text-align: left;
  width: 100%;
  font-variant-numeric: tabular-nums;
}
.field-display.placeholder { color: var(--text-faint); }
.field-display:disabled { opacity: 0.4; }

.field-row { display: flex; gap: 0.7rem; align-items: flex-end; }

.checkbox-field { flex-direction: row; align-items: center; gap: 0.55rem; font-size: 0.88rem; }
.checkbox-field input { width: 17px; height: 17px; accent-color: var(--gold); }

.seg { display: flex; gap: 0.6rem; }
.seg-opt {
  flex: 1;
  position: relative;
  text-align: center;
  padding: 0.65rem 0;
  border: 1px solid var(--rule);
  border-radius: 8px;
  background: var(--card);
  color: var(--text-soft);
  font-size: 0.95rem;
  cursor: pointer;
}
.seg-opt input { position: absolute; opacity: 0; }
.seg-opt:has(input:checked) { border-color: var(--gold); color: var(--gold); background: rgba(212,175,100,0.08); }

.wish-list { display: flex; flex-direction: column; gap: 0.65rem; }
.wish-opt {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1rem;
  border: 1px solid var(--rule);
  border-radius: 10px;
  background: var(--card);
  cursor: pointer;
}
.wish-opt[data-selected="true"] { border-color: var(--gold); background: rgba(212,175,100,0.1); }
.wish-opt[data-locked="true"] { opacity: 0.5; cursor: not-allowed; }
.wish-name { font-size: 0.98rem; }
.wish-badge {
  font-size: 0.68rem;
  color: var(--text-faint);
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: 0.15rem 0.55rem;
}
.wish-opt[data-selected="true"] .wish-badge { color: var(--gold); border-color: var(--gold-soft); }

.btn {
  border: none;
  border-radius: 10px;
  padding: 0.95rem 1rem;
  font-size: 1rem;
  font-family: var(--font-body);
  font-weight: 600;
  cursor: pointer;
}
.btn-primary { background: linear-gradient(135deg, var(--gold), var(--gold-soft)); color: #1a1108; }
.btn-primary:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-ghost { background: transparent; border: 1px solid var(--rule); color: var(--text); white-space: nowrap; }
.btn-locked { background: var(--card); border: 1px dashed var(--rule); color: var(--text-faint); }
.btn-link { background: none; padding: 0.2rem 0; font-size: 0.85rem; font-weight: 500; color: var(--gold-soft); text-decoration: underline; }

.hint { font-size: 0.78rem; color: var(--gold-soft); margin: -0.4rem 0 0; }

#screen-loading { align-items: center; justify-content: center; text-align: center; padding-top: 3.5rem; gap: 1.4rem; }
.spinner {
  width: 46px; height: 46px;
  border-radius: 50%;
  border: 2px solid var(--rule);
  border-top-color: var(--gold);
  animation: spin 1s linear infinite;
}
@media (prefers-reduced-motion: reduce) { .spinner { animation-duration: 2.4s; } }
@keyframes spin { to { transform: rotate(360deg); } }

.screen-result { gap: 1.2rem; }
.canvas-wrap {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--rule);
  box-shadow: 0 20px 50px rgba(0,0,0,0.5);
  aspect-ratio: 1080 / 2340;
}
.canvas-wrap canvas { width: 100%; height: 100%; display: block; cursor: pointer; touch-action: pan-y; }
.canvas-hint {
  position: absolute;
  bottom: 12px; left: 0; right: 0;
  text-align: center;
  font-size: 0.72rem;
  color: rgba(232, 220, 200, 0.65);
  pointer-events: none;
  letter-spacing: 0.05em;
}

.result-panel { display: flex; flex-direction: column; gap: 0.7rem; }
.valid-until { font-size: 0.8rem; color: var(--text-soft); margin: 0; }
.locked-hint {
  font-size: 0.78rem;
  color: var(--text-soft);
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 0.6rem 0.8rem;
  margin: 0;
}
.result-actions { display: flex; gap: 0.7rem; }
.result-actions .btn { flex: 1; }

.toast {
  position: fixed;
  left: 50%; bottom: 24px;
  transform: translateX(-50%);
  background: #241c14;
  border: 1px solid var(--rule);
  color: var(--text);
  padding: 0.7rem 1.1rem;
  border-radius: 10px;
  font-size: 0.85rem;
  max-width: 88vw;
  z-index: 50;
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}

/* ---------- 日期/时间滚轮选择器 ---------- */
.picker-overlay {
  position: fixed;
  inset: 0;
  background: rgba(6, 5, 3, 0.6);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 100;
}
.picker-overlay[hidden] { display: none; }
.picker-sheet {
  width: 100%;
  max-width: 460px;
  background: var(--ground-2);
  border: 1px solid var(--rule);
  border-bottom: none;
  border-top-left-radius: 18px;
  border-top-right-radius: 18px;
  padding-bottom: max(0.4rem, env(safe-area-inset-bottom));
  animation: picker-sheet-up 0.2s ease-out;
}
@media (prefers-reduced-motion: reduce) { .picker-sheet { animation: none; } }
@keyframes picker-sheet-up {
  from { transform: translateY(16px); opacity: 0.4; }
  to { transform: translateY(0); opacity: 1; }
}
.picker-sheet-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.1rem;
  border-bottom: 1px solid var(--rule);
}
.picker-title { font-family: var(--font-display); font-size: 0.95rem; color: var(--gold); }
.picker-btn-cancel, .picker-btn-confirm {
  background: none; border: none; font-size: 0.9rem; font-family: var(--font-body); padding: 0.2rem 0.3rem;
}
.picker-btn-cancel { color: var(--text-soft); }
.picker-btn-confirm { color: var(--gold); font-weight: 700; }

.picker-columns { position: relative; display: flex; height: 220px; padding: 0 0.6rem; }
.picker-col {
  flex: 1;
  overflow-y: scroll;
  scroll-snap-type: y mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.site-footer { display: flex; flex-wrap: wrap; justify-content: center; gap: .5rem 1rem; padding: 1rem 1rem calc(1rem + env(safe-area-inset-bottom)); color: var(--text-soft); font-size: .75rem; text-align: center; }
.site-footer a { color: inherit; text-underline-offset: .2em; }
.site-footer a:hover, .site-footer a:focus-visible { color: var(--text); }
.picker-col::-webkit-scrollbar { display: none; }
.picker-pad { height: 88px; }
.picker-item {
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  scroll-snap-align: center;
  color: var(--text-faint);
  font-size: 1rem;
  font-variant-numeric: tabular-nums;
  transition: color 0.15s, font-size 0.15s;
}
.picker-item.is-selected { color: var(--text); font-weight: 700; font-size: 1.2rem; }
.picker-highlight {
  position: absolute;
  left: 0.9rem; right: 0.9rem;
  top: 88px; height: 44px;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background: rgba(212, 175, 100, 0.07);
  border-radius: 8px;
  pointer-events: none;
}