/**
 * 恋爱时光轴 & 漫游宇宙 (Love Universe)
 * 文件名: css/components.css
 * 核心升级：星轨中枢 3x3 导航网格 + 全屏沉浸分幕 + 科幻防遮挡门禁舱 + 3D 动态生辰盲盒
 */

/* ================= 基础背景层 ================= */
.universe-canvas,
.fireworks-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
}
.universe-canvas {
  z-index: 1;
}
.fireworks-canvas {
  z-index: 99999;
}

/* ================= 基础按钮库 ================= */
.btn-universe {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 14px;
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
  user-select: none;
  transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
  transform: translateZ(0);
}

.btn-universe--primary {
  background: linear-gradient(135deg, var(--primary-pink, #f43f5e) 0%, #be123c 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.35);
  box-shadow: 0 6px 20px rgba(244, 63, 94, 0.4), inset 0 1px 1px rgba(255, 255, 255, 0.4);
}
.btn-universe--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(244, 63, 94, 0.55), inset 0 1px 2px rgba(255, 255, 255, 0.6);
}
.btn-universe--primary:active {
  transform: translateY(1px);
}

.btn-universe--accent {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4), inset 0 1px 1px rgba(255, 255, 255, 0.5);
}

.btn-universe--secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main, #fff);
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

/* ================= 🌟 星轨高科门禁舱重构 (修复竞态红屏、实现极致对称与防遮挡) ================= */
.gatekeeper {
  position: fixed;
  inset: 0;
  z-index: 50000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: radial-gradient(circle at center, #131b2e 0%, #030712 80%);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.5s;
}

.gatekeeper__dialog {
  width: 100%;
  max-width: 400px;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.85) 0%, rgba(3, 7, 18, 0.95) 100%);
  border: 1.5px solid rgba(56, 189, 248, 0.3); /* 科技青边缘 */
  border-radius: 26px;
  padding: 30px 24px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.8), 0 0 40px rgba(56, 189, 248, 0.15), inset 0 1px 1px rgba(255, 255, 255, 0.2);
  text-align: center;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s;
}

/* 🎯 iPhone 软键盘防遮挡（焦点激活时丝滑上浮） */
@media (max-width: 640px) {
  .gatekeeper__dialog:focus-within {
    transform: translateY(-15vh) !important;
    box-shadow: 0 34px 70px rgba(0, 0, 0, 0.9), 0 0 50px rgba(56, 189, 248, 0.2);
  }
}

.gatekeeper__dialog--error {
  animation: shakeError 0.4s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
  border-color: rgba(244, 63, 94, 0.6);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.8), 0 0 40px rgba(244, 63, 94, 0.25), inset 0 1px 1px rgba(255, 255, 255, 0.2);
}

@keyframes shakeError {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-8px); }
  50% { transform: translateX(8px); }
  75% { transform: translateX(-4px); }
}

.gatekeeper__badge {
  font-size: 10.5px;
  font-weight: 900;
  letter-spacing: 1.8px;
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.3);
  padding: 3px 10px;
  border-radius: 20px;
  display: inline-block;
  margin-bottom: 10px;
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.2);
}

.gatekeeper__title {
  font-size: 20px;
  font-weight: 900;
  color: #ffffff;
  margin-bottom: 14px;
  letter-spacing: 1px;
}

.gatekeeper__question {
  font-size: 13.5px;
  color: #94a3b8;
  line-height: 1.5;
  margin-bottom: 16px;
}

/* 🎯 矩阵重构：强行 1fr 54px 的等高网格实现物理级绝对对称 */
.gatekeeper__input-group { 
  display: grid;
  grid-template-columns: 1fr 54px;
  gap: 12px;
  margin-bottom: 16px;
  align-items: stretch;
}

.gatekeeper__input {
  width: 100%;
  background: rgba(0, 0, 0, 0.4);
  border: 1.5px solid rgba(255, 255, 255, 0.15);
  border-radius: 14px;
  padding: 14px 16px;
  font-size: 16px;
  font-weight: 800;
  color: #38bdf8;
  text-align: center;
  font-family: 'ui-monospace', 'SFMono-Regular', monospace;
  letter-spacing: 4px;
  box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.6);
  transition: all 0.2s ease;
  outline: none;
}

.gatekeeper__input:focus {
  border-color: #38bdf8;
  box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.6), 0 0 14px rgba(56, 189, 248, 0.4);
}

.gatekeeper__input::placeholder {
  color: #475569;
  letter-spacing: 1px;
  font-family: sans-serif;
  font-weight: 600;
}

/* 全息独立麦克风按钮 */
.voice-unlock-btn {
  background: rgba(255, 255, 255, 0.05) !important;
  border: 1.5px solid rgba(255, 255, 255, 0.15) !important;
  border-radius: 14px !important;
  color: #94a3b8 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  padding: 0 !important;
  height: 100% !important;
}

.voice-unlock-btn:hover {
  background: rgba(56, 189, 248, 0.15) !important;
  border-color: #38bdf8 !important;
}

.gatekeeper__hint {
  font-size: 11.5px;
  color: #fde68a;
  margin-bottom: 20px;
  min-height: 18px;
}

.gatekeeper__btn { 
  width: 100%; 
  padding: 14px 20px; 
  font-size: 15px; 
  background: linear-gradient(135deg, #0ea5e9 0%, #2563eb 100%);
  border: 1px solid rgba(56, 189, 248, 0.5);
  box-shadow: 0 6px 20px rgba(14, 165, 233, 0.4), inset 0 1px 1px rgba(255, 255, 255, 0.4);
}

.gatekeeper__btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(14, 165, 233, 0.55), inset 0 1px 2px rgba(255, 255, 255, 0.6);
}

.gatekeeper__btn:active {
  transform: scale(0.98);
}

/* ================= 头部视差区 ================= */
.hero-section {
  text-align: center;
  margin-bottom: 30px;
  padding-top: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-section__names {
  font-size: 38px;
  font-weight: 900;
  letter-spacing: 2.5px;
  font-family: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", -apple-system, serif;
  background: var(--text-hero-gradient, linear-gradient(135deg, #ffffff 0%, #fecdd3 50%, #fb7185 100%));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 10px;
  text-shadow: var(--text-hero-shadow, 0 0 30px rgba(251, 113, 133, 0.4));
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-wrap: nowrap;
  transition: all 0.3s ease;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.hero-section__names:active {
  transform: scale(0.96);
  opacity: 0.85;
}

.name-connector {
  display: inline-block;
  font-family: "Playfair Display", "Baskerville", "Georgia", "Songti SC", serif;
  font-style: italic;
  font-weight: 400;
  font-size: 0.88em;
  margin: 0 8px;
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 50%, #f43f5e 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 2px 6px rgba(245, 158, 11, 0.35));
  transition: all 0.3s ease;
}

.hero-section__badge {
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 2.5px;
  color: var(--badge-text, var(--sun-gold));
  background: var(--badge-bg, rgba(245, 158, 11, 0.12));
  border: 1px solid var(--badge-border, rgba(245, 158, 11, 0.3));
  padding: 3px 14px;
  border-radius: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
  transition: all 0.3s ease;
}

.hero-section__subtitle {
  font-size: 13.5px;
  color: var(--text-subtitle, var(--text-muted));
  font-weight: 600;
  margin-bottom: 22px;
  transition: color 0.3s ease;
}

.love-timer {
  background: var(--bg-card, var(--space-card));
  border: 1.5px solid var(--border-card, var(--glass-border));
  border-radius: 24px;
  padding: 20px 18px;
  box-shadow: var(--card-shadow, var(--glass-shadow));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  max-width: 580px;
  width: 100%;
  margin: 0 auto;
  transition: all 0.3s ease;
}

.love-timer__title {
  font-size: 12px;
  font-weight: 800;
  color: var(--text-sub, var(--text-muted));
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 12px;
  transition: color 0.3s ease;
}

.love-timer__grid {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  flex-wrap: nowrap;
}

.love-timer__unit {
  background: var(--timer-unit-bg, rgba(3, 7, 18, 0.65));
  border: 1px solid var(--timer-unit-border, rgba(255, 255, 255, 0.08));
  border-radius: 12px;
  padding: 10px 8px;
  min-width: 58px;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.15);
  transition: all 0.3s ease;
}

.love-timer__num {
  font-size: 24px;
  font-weight: 900;
  color: var(--timer-num-color, #fde68a);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  line-height: 1.1;
  text-shadow: 0 0 12px var(--sun-gold-glow);
  transition: color 0.3s ease;
}

.love-timer__label {
  font-size: 10.5px;
  color: var(--timer-label-color, var(--text-muted));
  font-weight: 700;
  margin-top: 2px;
  transition: color 0.3s ease;
}

.love-timer__milestone {
  margin-top: 14px;
  font-size: 12px;
  font-weight: 700;
  color: var(--timer-milestone-text, var(--rose-gold));
  background: var(--timer-milestone-bg, rgba(251, 113, 133, 0.1));
  border: 1px dashed var(--timer-milestone-border, rgba(251, 113, 133, 0.35));
  padding: 6px 14px;
  border-radius: 20px;
  display: inline-block;
  transition: all 0.3s ease;
}

.love-timer__milestone-days {
  font-size: 14px;
  font-weight: 900;
  padding: 0 2px;
}

/* ================= 告白信 ================= */
.confession-section {
  margin-bottom: 32px;
  width: 100%;
}

.confession-card {
  background: var(--confession-bg, rgba(255, 253, 245, 0.95));
  border: 1.5px solid var(--confession-border, transparent);
  border-radius: 24px;
  padding: 24px 20px;
  color: var(--confession-text, var(--text-dark));
  box-shadow: var(--card-shadow, 0 16px 36px rgba(0, 0, 0, 0.4));
  max-width: 680px;
  margin: 0 auto;
  position: relative;
  transition: all 0.3s ease;
}

.confession-card::before {
  content: "“";
  position: absolute;
  top: 10px;
  left: 18px;
  font-size: 60px;
  line-height: 1;
  color: rgba(244, 63, 94, 0.15);
  font-family: serif;
}

.confession-card__title {
  font-size: 18px;
  font-weight: 900;
  color: var(--confession-title, #9f1239);
  text-align: center;
  margin-bottom: 12px;
  transition: color 0.3s ease;
}

.confession-card__body {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--confession-text, #374151);
  min-height: 70px;
  word-break: break-word;
  position: relative;
  display: inline;
  transition: color 0.3s ease;
}

.typewriter-cursor {
  display: inline-block;
  font-weight: 900;
  color: var(--primary-pink);
  margin-left: 2px;
  animation: cursorBlink 0.8s infinite;
}

@keyframes cursorBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.confession-card__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 16px;
  padding-top: 10px;
  border-top: 1px dashed rgba(244, 63, 94, 0.2);
  font-size: 12px;
  font-weight: 700;
  color: var(--confession-footer, #881337);
  transition: color 0.3s ease;
}

/* ================= 🌟 星轨功能中枢 (3x3 完美九宫格对称) ================= */
.hub-dock {
  background: var(--bg-card, var(--space-card));
  border: 1.5px solid var(--border-card, var(--glass-border));
  border-radius: 28px;
  padding: 26px 20px;
  box-shadow: var(--card-shadow, var(--glass-shadow)), 0 0 30px rgba(245, 158, 11, 0.08);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  max-width: 680px;
  margin: 0 auto 36px;
  transition: all 0.3s ease;
  position: relative;
  z-index: 20;
}

.hub-dock__header {
  text-align: center;
  margin-bottom: 20px;
}

.hub-dock__badge {
  font-size: 9.5px;
  font-weight: 900;
  letter-spacing: 2px;
  color: var(--rose-gold);
  background: rgba(251, 113, 133, 0.12);
  border: 1px solid rgba(251, 113, 133, 0.3);
  padding: 2px 10px;
  border-radius: 16px;
  display: inline-block;
  margin-bottom: 6px;
}

.hub-dock__title {
  font-size: 16px;
  font-weight: 900;
  color: var(--text-hero, #fde68a);
  letter-spacing: 1px;
}

.hub-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.hub-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1.5px solid var(--glass-border);
  border-radius: 20px;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  user-select: none;
  pointer-events: auto;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all 0.28s var(--ease-spring);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
}

.hub-btn:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: var(--accent-gold, #f59e0b);
  transform: translateY(-4px) scale(1.03);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35), 0 0 20px var(--accent-gold-glow, rgba(245, 158, 11, 0.3));
}

.hub-btn:active {
  transform: translateY(1px) scale(0.98);
}

.hub-btn__glow {
  position: absolute;
  inset: -100%;
  background: radial-gradient(circle at center, rgba(245, 158, 11, 0.25) 0%, transparent 60%);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.hub-btn:hover .hub-btn__glow {
  opacity: 1;
}

.hub-btn__icon {
  font-size: 32px;
  margin-bottom: 8px;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
  transition: transform 0.28s var(--ease-spring);
  pointer-events: none;
}

.hub-btn:hover .hub-btn__icon {
  transform: scale(1.15) rotate(5deg);
}

.hub-btn__info {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  pointer-events: none;
}

.hub-btn__title {
  font-size: 13.5px;
  font-weight: 900;
  color: var(--text-main, #ffffff);
  letter-spacing: 0.5px;
}

.hub-btn__desc {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted, #94a3b8);
  line-height: 1.2;
}

/* ================= 🎪 全屏沉浸分幕系统 (Stage Modals) ================= */
.stage-overlay {
  position: fixed;
  inset: 0;
  background: rgba(3, 7, 18, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 45000;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.3s;
}

.stage-overlay.stage-overlay--active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.stage-container {
  position: fixed;
  inset: 0;
  z-index: 46000;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: max(16px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
}

.stage-container.stage-container--active {
  pointer-events: auto;
}

.stage-modal {
  position: absolute;
  inset: max(16px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
  max-width: 820px;
  margin: 0 auto;
  background: transparent;
  border: 1.5px solid var(--border-card, var(--glass-border));
  border-radius: 28px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6), 0 0 40px rgba(245, 158, 11, 0.15);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(30px) scale(0.96);
  pointer-events: none;
  transition: opacity 0.32s cubic-bezier(0.16, 1, 0.3, 1), transform 0.32s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.32s;
  will-change: transform, opacity;
  z-index: 1;
}

.stage-modal::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  background: var(--bg-card, rgba(15, 23, 42, 0.9));
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transform: translateZ(0);
}

.stage-modal.stage-modal--active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.stage-modal__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 22px;
  border-bottom: 1.5px solid var(--border-card, rgba(255, 255, 255, 0.1));
  background: rgba(0, 0, 0, 0.15);
  flex-shrink: 0;
}

.stage-modal__title-box {
  display: flex;
  align-items: center;
  gap: 10px;
}

.stage-modal__icon {
  font-size: 22px;
  filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.3));
}

.stage-modal__title {
  font-size: 16px;
  font-weight: 900;
  color: var(--text-hero, #ffffff);
  letter-spacing: 0.5px;
}

.stage-modal__close-btn {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--glass-border);
  color: var(--text-main, #ffffff);
  font-size: 15px;
  font-weight: 900;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  user-select: none;
}

.stage-modal__close-btn:hover {
  background: var(--primary-pink);
  border-color: var(--primary-pink);
  transform: rotate(90deg) scale(1.1);
}

.stage-modal__body {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 24px 20px;
  -webkit-overflow-scrolling: touch;
  transform: translateZ(0);
}

/* ================= 📸 拍立得时光轴 ================= */
.timeline-flow {
  display: flex;
  flex-direction: column;
  gap: 28px;
  max-width: 640px;
  margin: 0 auto;
  position: relative;
}

.timeline-node {
  display: flex;
  flex-direction: column;
  position: relative;
}

.timeline-node__time {
  font-size: 12px;
  font-weight: 900;
  color: var(--accent-gold, var(--sun-gold));
  letter-spacing: 1px;
  margin-bottom: 8px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.timeline-node__time::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-gold, var(--sun-gold));
  box-shadow: 0 0 10px var(--accent-gold-glow, var(--sun-gold-glow));
}

.polaroid-card {
  perspective: 1000px;
  -webkit-perspective: 1000px;
  cursor: pointer;
  user-select: none;
}

.polaroid-card__inner {
  position: relative;
  width: 100%;
  border-radius: 20px;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  transform-style: preserve-3d;
  -webkit-transform-style: preserve-3d;
  will-change: transform;
}

.polaroid-card__inner--flipped {
  transform: rotateY(180deg);
  -webkit-transform: rotateY(180deg);
}

.polaroid-card__front,
.polaroid-card__back {
  width: 100%;
  border-radius: 20px;
  background: var(--polaroid-paper);
  box-shadow: var(--polaroid-shadow);
  padding: 16px;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
}

.polaroid-card__front {
  display: flex;
  flex-direction: column;
}

.polaroid-card__photo-box {
  width: 100%;
  height: 260px;
  border-radius: 12px;
  overflow: hidden;
  position: relative;
  background: #0f172a;
}

.polaroid-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.polaroid-card:hover .polaroid-card__img {
  transform: scale(1.02);
}

.polaroid-card__tag {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(15, 23, 42, 0.75);
  color: #ffffff;
  font-size: 11px;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: 12px;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.polaroid-card__caption {
  padding-top: 14px;
  color: var(--text-dark);
}

.polaroid-card__title {
  font-size: 17px;
  font-weight: 800;
  color: #111827;
  margin-bottom: 4px;
}

.polaroid-card__desc {
  font-size: 13px;
  color: #4b5563;
  line-height: 1.5;
  margin-bottom: 10px;
}

.polaroid-card__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  font-weight: 700;
  color: #9ca3af;
  border-top: 1px solid #f3f4f6;
  padding-top: 8px;
}

.polaroid-card__hint {
  color: var(--primary-pink);
}

.polaroid-card__back {
  position: absolute;
  inset: 0;
  transform: rotateY(180deg) translateZ(1px);
  -webkit-transform: rotateY(180deg) translateZ(1px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: #fffdfa;
  border: 2px dashed #fecdd3;
}

.polaroid-card__stamp {
  position: absolute;
  top: 14px;
  right: 14px;
  border: 1.5px solid #f43f5e;
  color: #f43f5e;
  font-size: 9.5px;
  font-weight: 900;
  padding: 2px 6px;
  border-radius: 4px;
  transform: rotate(8deg);
}

.polaroid-card__back-title {
  font-size: 16px;
  font-weight: 800;
  color: #9f1239;
  margin-bottom: 10px;
}

.polaroid-card__back-text {
  font-size: 14px;
  line-height: 1.8;
  color: #374151;
  font-style: italic;
}

.polaroid-card__voice-box {
  margin-top: 14px;
  display: flex;
  align-items: center;
}

.polaroid-voice-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, rgba(255, 241, 242, 0.95) 0%, rgba(254, 226, 226, 0.9) 100%);
  border: 1.5px solid rgba(244, 63, 94, 0.35);
  border-radius: 26px;
  padding: 7px 15px;
  cursor: pointer;
  user-select: none;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 14px rgba(244, 63, 94, 0.12);
  max-width: 100%;
}

.polaroid-voice-pill:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 6px 18px rgba(244, 63, 94, 0.22);
  border-color: rgba(244, 63, 94, 0.6);
}

.polaroid-voice-pill.playing {
  background: linear-gradient(135deg, #f43f5e 0%, #e11d48 100%);
  border-color: #be123c;
  box-shadow: 0 4px 16px rgba(244, 63, 94, 0.45);
}

.polaroid-voice-icon {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(244, 63, 94, 0.15);
  color: #e11d48;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 900;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.polaroid-voice-pill.playing .polaroid-voice-icon {
  background: rgba(255, 255, 255, 0.25);
  color: #ffffff;
}

.polaroid-voice-waves {
  display: flex;
  align-items: center;
  gap: 3px;
  height: 16px;
}

.polaroid-wave-bar {
  width: 3px;
  height: 6px;
  background: #f43f5e;
  border-radius: 2px;
  transition: height 0.2s ease;
}

.polaroid-voice-pill.playing .polaroid-wave-bar {
  background: #ffffff;
  animation: polaroidWaveAnimation 0.9s ease-in-out infinite alternate;
}

.polaroid-voice-pill.playing .polaroid-wave-bar:nth-child(1) { animation-delay: 0.1s; }
.polaroid-voice-pill.playing .polaroid-wave-bar:nth-child(2) { animation-delay: 0.3s; }
.polaroid-voice-pill.playing .polaroid-wave-bar:nth-child(3) { animation-delay: 0.2s; }
.polaroid-voice-pill.playing .polaroid-wave-bar:nth-child(4) { animation-delay: 0.4s; }
.polaroid-voice-pill.playing .polaroid-wave-bar:nth-child(5) { animation-delay: 0.15s; }

@keyframes polaroidWaveAnimation {
  0% { height: 4px; }
  100% { height: 16px; }
}

.polaroid-voice-info {
  display: flex;
  flex-direction: column;
}

.polaroid-voice-title {
  font-size: 12px;
  font-weight: 800;
  color: #9f1239;
  line-height: 1.2;
}

.polaroid-voice-pill.playing .polaroid-voice-title {
  color: #ffffff;
}

.polaroid-voice-duration {
  font-size: 10px;
  font-weight: 700;
  color: #e11d48;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.polaroid-voice-pill.playing .polaroid-voice-duration {
  color: rgba(255, 255, 255, 0.9);
}

.polaroid-card__back-footer {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: #9ca3af;
  font-weight: 700;
}

/* ================= 📝 100 件事清单 ================= */
.checklist-card {
  background: var(--bg-card, var(--space-card));
  border: 1.5px solid var(--border-card, var(--glass-border));
  border-radius: 24px;
  padding: 24px 20px;
  box-shadow: var(--card-shadow, var(--glass-shadow));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  max-width: 680px;
  margin: 0 auto;
  transition: all 0.3s ease;
}

.checklist-card__progress-bar {
  width: 100%;
  height: 8px;
  background: rgba(3, 7, 18, 0.3);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 10px;
}

.checklist-card__progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--sun-gold), var(--primary-pink));
  box-shadow: 0 0 10px var(--rose-gold-glow);
  transition: width 0.4s var(--ease-spring);
}

.checklist-card__stats {
  font-size: 12.5px;
  font-weight: 800;
  color: var(--text-sub, #fde68a);
  text-align: right;
  margin-bottom: 16px;
  transition: color 0.3s ease;
}

.checklist-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 480px;
  overflow-y: auto;
  padding-right: 6px;
  -webkit-overflow-scrolling: touch;
}

.checklist-item {
  background: var(--drawer-item-bg, rgba(3, 7, 18, 0.5));
  border: 1px solid var(--border-card, rgba(255, 255, 255, 0.06));
  border-radius: 12px;
  padding: 10px 14px;
  transition: all 0.2s ease;
}

.checklist-item:hover {
  background: rgba(255, 255, 255, 0.1);
}

.checklist-item__label {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
}

.checklist-item__checkbox {
  display: none;
}

.checklist-item__custom-box {
  width: 18px;
  height: 18px;
  border-radius: 6px;
  border: 1.5px solid var(--rose-gold, #f43f5e);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s ease;
}

.checklist-item__checkbox:checked + .checklist-item__custom-box {
  background: var(--primary-pink, #f43f5e);
  border-color: var(--primary-pink);
}

.checklist-item__checkbox:checked + .checklist-item__custom-box::after {
  content: "✓";
  color: #ffffff;
  font-size: 12px;
  font-weight: 900;
}

.checklist-item__text {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text-main);
  transition: all 0.2s ease;
}

.checklist-item--checked .checklist-item__text {
  color: var(--text-muted);
  text-decoration: line-through;
  opacity: 0.6;
}

/* ================= 🎟️ 刮刮乐 ================= */
.scratch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
  max-width: 680px;
  margin: 0 auto;
}

.scratch-card {
  position: relative;
  min-height: 180px;
  border-radius: 20px;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(255, 253, 245, 0.95) 0%, rgba(254, 243, 199, 0.95) 100%);
  border: 1.5px solid rgba(253, 230, 138, 0.6);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.25);
}

.scratch-card__content {
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  color: #374151;
  position: relative;
}

.scratch-card__header {
  display: flex;
  align-items: center;
  gap: 8px;
}

.scratch-card__icon {
  font-size: 24px;
}

.scratch-card__title {
  font-size: 16px;
  font-weight: 900;
  color: #92400e;
}

.scratch-card__text {
  font-size: 13.5px;
  font-weight: 600;
  color: #451a03;
  line-height: 1.5;
  margin: 10px 0;
}

.scratch-card__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 5;
  touch-action: none;
  cursor: grab;
}

.scratch-stamp {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-15deg) scale(2);
  opacity: 0;
  pointer-events: none;
  z-index: 10;
  transition: all 0.25s var(--ease-spring);
}

.scratch-stamp--visible {
  opacity: 0.9;
  transform: translate(-50%, -50%) rotate(-15deg) scale(1);
}

.scratch-stamp__circle {
  width: 96px;
  height: 96px;
  border: 3px dashed var(--stamp-red);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 16px var(--stamp-red-glow), inset 0 0 8px var(--stamp-red-glow);
  background: rgba(220, 38, 38, 0.08);
}

.scratch-stamp__status {
  font-size: 18px;
  font-weight: 900;
  color: var(--stamp-red);
  letter-spacing: 2px;
}

.scratch-stamp__time {
  font-size: 9.5px;
  font-weight: 800;
  color: var(--stamp-red);
  font-family: ui-monospace, monospace;
}

/* ================= 🌟 极简半透明悬浮爱心音乐晶体 ================= */
.vinyl-player {
  position: fixed;
  bottom: max(20px, env(safe-area-inset-bottom, 20px));
  left: max(16px, env(safe-area-inset-left, 16px));
  z-index: 55000;
  display: flex;
  align-items: center;
  pointer-events: auto;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
}

.heart-music-capsule {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--bg-card, rgba(20, 20, 38, 0.75));
  border: 1.5px solid var(--border-card, rgba(255, 255, 255, 0.25));
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4), 0 0 16px var(--rose-gold-glow, rgba(251, 113, 133, 0.35));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
  pointer-events: auto;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.heart-music-capsule:hover {
  transform: scale(1.1) translateY(-2px);
  border-color: var(--accent-gold, #f59e0b);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.5), 0 0 22px var(--accent-gold-glow, rgba(245, 158, 11, 0.45));
}

.heart-music-capsule:active {
  transform: scale(0.95);
}

.heart-music-core {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, #fb7185 0%, #f43f5e 100%);
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(244, 63, 94, 0.4);
  pointer-events: none;
}

.heart-music-icon {
  font-size: 15px;
  line-height: 1;
  pointer-events: none;
  transition: transform 0.3s ease;
}

.heart-music-capsule.playing .heart-music-icon {
  animation: heartBeatPulse 1.2s infinite ease-in-out;
}

.heart-music-cover {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: none;
  pointer-events: none;
}

.heart-music-pulse {
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1.5px solid var(--primary-pink, #f43f5e);
  opacity: 0;
  pointer-events: none;
}

.heart-music-capsule.playing .heart-music-pulse {
  animation: heartPulseRipple 2s infinite ease-out;
}

@keyframes heartBeatPulse {
  0%, 100% { transform: scale(1); }
  25% { transform: scale(1.22); }
  50% { transform: scale(0.95); }
  75% { transform: scale(1.15); }
}

@keyframes heartPulseRipple {
  0% { transform: scale(0.9); opacity: 0.8; }
  100% { transform: scale(1.5); opacity: 0; }
}

/* ================= 🎵 歌曲列表抽屉 ================= */
.playlist-drawer {
  position: fixed;
  bottom: calc(max(20px, env(safe-area-inset-bottom, 20px)) + 62px);
  left: max(16px, env(safe-area-inset-left, 16px));
  width: 310px;
  max-width: calc(100vw - 32px);
  max-height: 380px;
  background: var(--drawer-bg);
  border: 1.5px solid var(--drawer-border);
  border-radius: 20px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.4), 0 0 20px var(--accent-gold-glow, rgba(245, 158, 11, 0.15));
  z-index: 56000;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px) scale(0.95);
  pointer-events: none;
  transition: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

.playlist-drawer.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.playlist-drawer__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-card, rgba(255, 255, 255, 0.1));
  background: rgba(0, 0, 0, 0.05);
}

.playlist-drawer__title {
  font-size: 13.5px;
  font-weight: 800;
  color: var(--text-hero, #fde68a);
  display: flex;
  align-items: center;
  gap: 6px;
}

.playlist-drawer__close {
  background: transparent;
  border: none;
  color: var(--text-sub, #94a3b8);
  font-size: 16px;
  cursor: pointer;
  padding: 2px 6px;
  line-height: 1;
  border-radius: 6px;
  transition: all 0.2s;
}

.playlist-drawer__close:hover {
  color: var(--text-main, #ffffff);
  background: rgba(0, 0, 0, 0.1);
}

.playlist-drawer__list {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  -webkit-overflow-scrolling: touch;
}

.playlist-drawer__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 12px;
  border-radius: 12px;
  background: var(--drawer-item-bg);
  border: 1px solid var(--drawer-item-border);
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}

.playlist-drawer__item:hover {
  background: rgba(245, 158, 11, 0.15);
  border-color: var(--accent-gold);
  transform: translateX(3px);
}

.playlist-drawer__item.active {
  background: var(--drawer-active-bg);
  border-color: var(--drawer-active-border);
  box-shadow: 0 2px 10px rgba(245, 158, 11, 0.2);
}

.playlist-drawer__item-info {
  flex: 1;
  overflow: hidden;
  margin-right: 8px;
}

.playlist-drawer__item-title {
  font-size: 12.5px;
  font-weight: 800;
  color: var(--drawer-item-title);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.playlist-drawer__item.active .playlist-drawer__item-title {
  color: var(--drawer-active-title);
}

.playlist-drawer__item-artist {
  font-size: 11px;
  color: var(--drawer-item-artist);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 2px;
}

.playlist-drawer__item-icon {
  font-size: 12px;
  color: var(--accent-gold);
  flex-shrink: 0;
}

.playlist-drawer__empty {
  padding: 24px 12px;
  text-align: center;
  color: var(--text-sub);
  font-size: 12px;
  line-height: 1.6;
}

/* ================= 彩蛋与海报 ================= */
.easter-egg-trigger {
  position: fixed;
  font-size: 20px;
  cursor: pointer;
  z-index: 40000;
  user-select: none;
  opacity: 0.8;
  transition: opacity 0.2s, transform 0.2s;
  transform: translateZ(0);
}

.easter-egg-trigger:hover {
  opacity: 1;
  transform: scale(1.2);
}

.easter-egg-trigger--star {
  top: 30px;
  right: 25px;
}

.easter-egg-trigger--paw {
  bottom: max(24px, env(safe-area-inset-bottom, 24px));
  right: 25px;
}

.egg-modal,
.poster-modal {
  position: fixed;
  inset: 0;
  background: rgba(7, 10, 20, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 60000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.egg-modal__dialog,
.poster-modal__dialog {
  background: var(--bg-card, var(--space-card));
  border: 1.5px solid var(--border-card, var(--glass-border));
  border-radius: 24px;
  padding: 24px;
  box-shadow: var(--card-shadow, var(--glass-shadow));
  max-width: 380px;
  width: 100%;
  text-align: center;
}

.egg-modal__body {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--text-main, #fef3c7);
  font-weight: 700;
  margin-bottom: 20px;
}

.poster-modal__tip {
  font-size: 12px;
  color: var(--text-sub, var(--text-muted));
  margin-top: 10px;
}

.poster-modal__actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 16px;
}

/* ================= 防御性兜底 ================= */
.parallax-photo-wall,
.timeline-flow,
.stage-modal__body {
  scroll-snap-type: none !important;
  overscroll-behavior: auto !important;
}

.body--locked {
  position: fixed !important;
  width: 100% !important;
  overflow: hidden !important;
}

/* ================= 🎂 核心重构：3D 全息动态生辰盲盒引擎 (硬件加速 + 粒子滤镜) ================= */
.birthday-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  padding: 10px 0;
}

.bd-capsule-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  width: 100%;
}

.bd-capsule-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1.5px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 20px;
  text-align: center;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.bd-capsule-card.unlocked {
  background: linear-gradient(135deg, rgba(244, 63, 94, 0.15) 0%, rgba(245, 158, 11, 0.15) 100%);
  border-color: rgba(245, 158, 11, 0.4);
  cursor: pointer;
}

.bd-capsule-card.unlocked:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(245, 158, 11, 0.2);
}

.bd-capsule-icon {
  font-size: 36px;
  margin-bottom: 12px;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3));
}

.bd-capsule-title {
  font-size: 16px;
  font-weight: 800;
  color: var(--text-hero, #fff);
  margin-bottom: 6px;
}

.bd-capsule-subtitle {
  font-size: 12px;
  color: var(--text-sub, #94a3b8);
  margin-bottom: 16px;
}

.bd-countdown-box {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  font-family: ui-monospace, monospace;
  color: var(--text-muted, #64748b);
  font-weight: 900;
}

.bd-cd-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: rgba(0, 0, 0, 0.3);
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.bd-cd-item span { font-size: 16px; color: #fff; }
.bd-cd-item small { font-size: 9px; margin-top: 2px; color: #94a3b8; font-family: sans-serif;}

.bd-capsule-btn {
  display: inline-block;
  padding: 8px 18px;
  border-radius: 20px;
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
}

/* 3D 盲盒全屏模态引擎 */
.bd-3d-modal {
  position: fixed;
  inset: 0;
  z-index: 90000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s;
}

.bd-3d-modal.active { opacity: 1; pointer-events: auto; }

.bd-3d-overlay {
  position: absolute;
  inset: 0;
  background: rgba(3, 7, 18, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

/* 🎯 开启终极 3D 舞台视差（陀螺仪感应区域） */
.bd-3d-scene {
  perspective: 1200px;
  -webkit-perspective: 1200px;
  width: 100%;
  max-width: 480px;
  padding: 20px;
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.bd-close-btn {
  position: absolute;
  top: -10px;
  right: 20px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  font-size: 16px;
  font-weight: 900;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

/* 核心：卡片容器允许内部元素突破 Z 轴限制 */
.bd-card-wrapper {
  width: 100%;
  aspect-ratio: 3 / 4;
  transform-style: preserve-3d;
  -webkit-transform-style: preserve-3d;
  transition: transform 0.1s ease-out; /* 响应鼠标与陀螺仪的高频更新 */
  margin-bottom: 24px;
}

/* 核心：底层底板 */
.bd-card {
  width: 100%;
  height: 100%;
  border-radius: 20px;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 30px 60px rgba(0,0,0,0.8);
  transform-style: preserve-3d;
  -webkit-transform-style: preserve-3d;
  transform: translateZ(0);
}

/* 陀螺仪玻璃高光折射层 */
.bd-card-glare {
  position: absolute;
  width: 200%;
  height: 200%;
  top: -50%;
  left: -50%;
  background: radial-gradient(circle at center, rgba(255,255,255,0.4) 0%, transparent 50%);
  opacity: 0;
  pointer-events: none;
  mix-blend-mode: overlay;
  z-index: 50;
  transition: opacity 0.3s;
  transform: translateZ(20px);
}

/* 🌟 高定模版 A: 深空机甲 (男 · Cyber Matrix) */
.bd-tpl-A {
  background: linear-gradient(180deg, #0f172a 0%, #020617 100%);
  border: 2px solid #0ea5e9;
  box-shadow: 0 0 30px rgba(14, 165, 233, 0.4), inset 0 0 20px rgba(14, 165, 233, 0.2);
}

.bd-tpl-A::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, transparent, rgba(56, 189, 248, 0.2) 50%, transparent);
  background-size: 100% 200%;
  animation: matrixScan 4s linear infinite;
  transform: translateZ(-10px);
}

@keyframes matrixScan {
  0% { background-position: 0 -100%; }
  100% { background-position: 0 100%; }
}

.bd-tpl-A .bd-card-photo-box { transform: translateZ(20px); box-shadow: 0 10px 20px rgba(0,0,0,0.5); border-radius: 12px; margin: 16px; border: 1px solid rgba(56,189,248,0.5); }
.bd-tpl-A .bd-card-title { color: #38bdf8; font-family: ui-monospace, monospace; font-size: 20px; text-transform: uppercase; letter-spacing: 2px; transform: translateZ(30px); }
.bd-tpl-A .bd-card-msg { color: #e2e8f0; font-size: 14.5px; transform: translateZ(20px); }

/* 🌟 高定模版 B: 黑金岁月 (男 · Obsidian Gold) */
.bd-tpl-B {
  background: #111; /* 纯黑底 */
  border: 4px solid #d97706;
  box-shadow: 0 20px 50px rgba(0,0,0,0.9), inset 0 0 0 4px #000;
}

.bd-tpl-B::after {
  content: '';
  position: absolute;
  inset: -50%;
  z-index: -1;
  background: linear-gradient(45deg, transparent 40%, rgba(252, 211, 77, 0.3) 50%, transparent 60%);
  animation: goldShimmer 3s ease-in-out infinite;
  transform: translateZ(5px);
}

@keyframes goldShimmer {
  0% { transform: translateX(-50%) translateY(-50%) rotate(45deg) translateZ(5px); }
  100% { transform: translateX(50%) translateY(50%) rotate(45deg) translateZ(5px); }
}

.bd-tpl-B .bd-card-photo-box { transform: translateZ(15px); border: 2px solid #b45309; margin: 16px; border-radius: 8px;}
.bd-tpl-B .bd-card-title { color: #fcd34d; font-family: "Playfair Display", serif; font-size: 24px; font-weight: 900; letter-spacing: 1px; transform: translateZ(25px); text-shadow: 0 2px 4px rgba(0,0,0,0.8); }
.bd-tpl-B .bd-card-msg { color: #d1d5db; font-size: 14.5px; font-family: serif; transform: translateZ(15px); }

/* 🌟 高定模版 C: 法式初雪 (女 · Crystal Snow) */
.bd-tpl-C {
  background: linear-gradient(135deg, rgba(255,255,255,0.85) 0%, rgba(252, 231, 243, 0.75) 100%);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid #ffffff;
  box-shadow: 0 20px 40px rgba(244, 63, 94, 0.15), inset 0 1px 2px #fff;
}

/* 利用 3 层阴影制造漫天飞雪特效，Z轴深度错落 */
.bd-tpl-C::before {
  content: '';
  position: absolute;
  width: 4px;
  height: 4px;
  background: white;
  border-radius: 50%;
  box-shadow: 10px 10px 0 1px #fff, 40px 80px 0 2px #fff, 120px 30px 0 0 #fff, 200px 150px 0 1px #fff, 300px 50px 0 2px #fff, 350px 200px 0 0 #fff;
  animation: snowFall 6s linear infinite;
  transform: translateZ(-15px);
  z-index: -1;
}

@keyframes snowFall {
  0% { transform: translateY(-200px) translateZ(-15px); opacity: 0; }
  50% { opacity: 1; }
  100% { transform: translateY(800px) translateZ(-15px); opacity: 0; }
}

.bd-tpl-C .bd-card-photo-box { transform: translateZ(10px); border-radius: 20px; box-shadow: 0 8px 16px rgba(0,0,0,0.1); filter: drop-shadow(0 0 8px rgba(255,255,255,0.5)); margin: 16px; mask-image: linear-gradient(to bottom, black 80%, transparent 100%); -webkit-mask-image: linear-gradient(to bottom, black 80%, transparent 100%); }
.bd-tpl-C .bd-card-title { color: #9f1239; font-family: serif; font-size: 26px; font-weight: 800; transform: translateZ(30px); }
.bd-tpl-C .bd-card-msg { color: #4b5563; font-size: 14.5px; font-weight: 600; line-height: 1.8; transform: translateZ(20px); }

/* 🌟 高定模版 D: 复古相纸 (女 · Vintage Polaroid) */
.bd-tpl-D {
  background: #fdfbf7;
  border: 12px solid #ffffff;
  border-bottom-width: 40px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2), inset 0 0 0 1px rgba(0,0,0,0.05);
}

.bd-tpl-D::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 70% 30%, rgba(245, 158, 11, 0.15) 0%, transparent 50%), radial-gradient(circle at 20% 80%, rgba(244, 63, 94, 0.1) 0%, transparent 40%);
  z-index: 5; pointer-events: none; mix-blend-mode: overlay; transform: translateZ(10px);
}

.bd-tpl-D::after {
  content: '';
  position: absolute;
  top: -20px;
  left: 50%;
  width: 20px;
  height: 20px;
  background: radial-gradient(circle, #ef4444 30%, #991b1b 100%);
  border-radius: 50%;
  box-shadow: 0 4px 6px rgba(0,0,0,0.4);
  transform: translateX(-50%) translateZ(40px); /* 3D 悬浮红色图钉 */
}

.bd-tpl-D .bd-card-photo-box { border-radius: 2px; border: 1px solid #e5e7eb; transform: translateZ(5px); }
.bd-tpl-D .bd-card-img { filter: sepia(30%) contrast(1.1) saturate(1.2); }
.bd-tpl-D .bd-card-title { color: #111827; font-family: monospace; font-size: 24px; font-weight: 900; transform: translateZ(15px); }
.bd-tpl-D .bd-card-msg { color: #374151; font-size: 14.5px; font-family: monospace; font-style: italic; transform: translateZ(10px); }
.bd-tpl-D .bd-card-stamp { position: absolute; bottom: -30px; right: 10px; color: #e11d48; font-size: 24px; font-weight: 900; transform: rotate(-15deg) translateZ(20px); filter: drop-shadow(0 2px 2px rgba(0,0,0,0.2)); z-index: 10;}

/* 3D 贺卡基础子结构 */
.bd-card-photo-box { width: 100%; height: 52%; overflow: hidden; background: #000; flex-shrink: 0; position: relative; }
.bd-card-particles { position: absolute; inset: 0; pointer-events: none; z-index: 2; }
.bd-card-img { width: 100%; height: 100%; object-fit: cover; position: relative; z-index: 1;}
.bd-card-img-placeholder { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; font-size: 40px; background: #1e293b; }
.bd-card-content { padding: 24px 20px; flex: 1; display: flex; flex-direction: column; overflow-y: auto; position: relative; z-index: 5; }
.bd-card-title { margin-bottom: 12px; }
.bd-card-msg { line-height: 1.6; word-break: break-word; }

/* 🌟 听觉引擎：全息语音流操作舱 */
.bd-audio-capsule {
  margin-top: auto; /* 推到底部 */
  padding-top: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translateZ(35px); /* 突出悬浮感 */
}

.bd-play-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(0, 0, 0, 0.1);
  padding: 8px 20px;
  border-radius: 30px;
  color: var(--text-main);
  font-size: 13px;
  font-weight: 800;
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition: all 0.2s;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.bd-tpl-A .bd-play-btn, .bd-tpl-B .bd-play-btn {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-color: rgba(255,255,255,0.2);
}

.bd-play-btn:active { transform: scale(0.95); }
.bd-play-btn.playing {
  background: var(--primary-pink, #f43f5e);
  color: #fff;
  border-color: #be123c;
  box-shadow: 0 0 20px rgba(244, 63, 94, 0.6);
  animation: audioPulse 1s infinite alternate;
}
@keyframes audioPulse { 0% { transform: scale(1); } 100% { transform: scale(1.05); } }

/* 极清分享按钮 */
.bd-export-btn {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #fff;
  padding: 14px 24px;
  border-radius: 24px;
  font-size: 14.5px;
  font-weight: 800;
  cursor: pointer;
  backdrop-filter: blur(10px);
  transition: all 0.2s;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  margin-top: 10px;
  z-index: 20;
}
.bd-export-btn:hover { background: rgba(255, 255, 255, 0.2); transform: translateY(-2px); }
.bd-export-btn:active { transform: scale(0.95); }

/* ================= 📱 移动端视口深度调优 ================= */
@media (max-width: 640px) {
  .hero-section { padding-top: max(72px, calc(env(safe-area-inset-top, 0px) + 68px)); margin-bottom: 22px; }
  .hero-section__names { font-size: 28px; letter-spacing: 1.8px; }
  .name-connector { margin: 0 5px; font-size: 0.85em; }
  .hero-section__badge { font-size: 9px; letter-spacing: 2px; padding: 2.5px 11px; margin-bottom: 8px; }
  .hero-section__subtitle { font-size: 11.5px; padding: 0 12px; line-height: 1.4; margin-bottom: 16px; }

  .perspective-capsule { top: max(10px, env(safe-area-inset-top, 10px)); right: 10px; padding: 2.5px; backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
  .perspective-btn { padding: 5px 10px; font-size: 11px; }
  .easter-egg-trigger--star { top: max(56px, calc(env(safe-area-inset-top, 0px) + 52px)) !important; right: 12px !important; }

  .love-timer { padding: 14px 10px; border-radius: 20px; backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
  .love-timer__grid { gap: 4px; }
  .love-timer__unit { min-width: 44px; padding: 7px 4px; border-radius: 10px; }
  .love-timer__num { font-size: 18px; }
  .love-timer__label { font-size: 9px; }

  .hub-dock { padding: 18px 12px; border-radius: 22px; margin-bottom: 24px; }
  .hub-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; } /* 保持移动端也是 3x3 矩阵，防止按钮变形 */
  .hub-btn { padding: 12px 8px; border-radius: 16px; }
  .hub-btn__icon { font-size: 24px; margin-bottom: 4px; }
  .hub-btn__title { font-size: 11px; }
  .hub-btn__desc { display: none; } /* 移动端隐藏描述，保持图标和标题紧凑 */

  .stage-container { padding: max(8px, env(safe-area-inset-top)) 8px max(8px, env(safe-area-inset-bottom)) 8px; }
  .stage-modal { inset: max(8px, env(safe-area-inset-top)) 8px max(8px, env(safe-area-inset-bottom)) 8px; border-radius: 22px; }
  .stage-modal__header { padding: 12px 16px; }
  .stage-modal__title { font-size: 14.5px; }
  .stage-modal__body { padding: 16px 12px; }

  .vinyl-player { bottom: max(16px, env(safe-area-inset-bottom, 16px)); left: 12px; }
  .heart-music-capsule { width: 44px; height: 44px; }
  .heart-music-core { width: 28px; height: 28px; }
  .heart-music-icon { font-size: 13px; }

  .playlist-drawer { left: 12px; bottom: calc(max(16px, env(safe-area-inset-bottom, 16px)) + 54px); width: calc(100vw - 24px); max-width: 320px; max-height: 320px; backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
  
  .bd-3d-scene { padding: 10px; }
  .bd-card-wrapper { aspect-ratio: 3 / 4; max-height: 65vh; } /* 防止移动端高度溢出 */
  .bd-export-btn { padding: 12px 20px; font-size: 13.5px; }
}