/* ===== 温馨治愈 · 移动端贺卡 ===== */
:root {
  --cream: #fff9f0;
  --sky: #e8f2fa;
  --pink: #f4a4b8;
  --pink-soft: #fce4ec;
  --blue: #7ba7d8;
  --blue-dark: #4a7eb5;
  --green: #8ecfaa;
  --gold: #f5d78e;
  --text: #3d4f61;
  --text-soft: #7a8fa3;
  --white: #fff;
  --card: rgba(255, 255, 255, 0.92);
  --shadow: 0 4px 24px rgba(123, 167, 216, 0.15);
  --shadow-warm: 0 8px 32px rgba(244, 164, 184, 0.22);
  --radius: 18px;
  --header-h: 50px;
  --tab-h: 58px;
  --safe-t: env(safe-area-inset-top, 0px);
  --safe-b: env(safe-area-inset-bottom, 0px);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }

html, body {
  height: 100%;
  overflow: hidden;
  font-family: 'Noto Sans SC', -apple-system, 'PingFang SC', sans-serif;
  color: var(--text);
  background: linear-gradient(160deg, #c8dff0 0%, #f0d4e0 50%, #d4eede 100%);
  -webkit-font-smoothing: antialiased;
}

/* 手机壳 */
.phone-shell {
  width: 100%;
  max-width: 430px;
  height: 100%;
  max-height: 100dvh;
  margin: 0 auto;
  position: relative;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.3), 0 24px 64px rgba(74, 126, 181, 0.18);
}

@media (min-width: 480px) {
  body { display: flex; align-items: center; justify-content: center; min-height: 100dvh; padding: 12px; }
  .phone-shell { height: min(100dvh - 24px, 880px); border-radius: 28px; overflow: hidden; }
}

.app {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: linear-gradient(180deg, var(--sky) 0%, var(--cream) 40%, #f0faf4 100%);
  position: relative;
  z-index: 2;
  overflow: hidden;
}

/* 顶部 */
.top-bar {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: calc(var(--header-h) + var(--safe-t));
  padding-top: var(--safe-t);
  background: rgba(255,255,255,0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(123,167,216,0.12);
  position: relative;
  z-index: 10;
}

.top-icon { font-size: 1.2rem; }

.top-title {
  font-family: 'ZCOOL KuaiLe', cursive;
  font-size: 1.1rem;
  color: var(--blue-dark);
  font-weight: 400;
}

.top-tag {
  position: absolute;
  right: 16px;
  font-size: 0.68rem;
  padding: 3px 10px;
  border-radius: 20px;
  background: linear-gradient(135deg, var(--pink-soft), var(--gold));
  color: #b4536a;
  font-weight: 500;
}

/* 页面 */
.pages { flex: 1; position: relative; min-height: 0; }

.page {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateX(16px);
  transition: opacity 0.28s, transform 0.28s, visibility 0.28s;
  pointer-events: none;
}

.page.active {
  opacity: 1;
  visibility: visible;
  transform: none;
  pointer-events: auto;
}

.scroll-area {
  height: 100%;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 16px 16px calc(var(--tab-h) + var(--safe-b) + 24px);
}

.section-tip {
  text-align: center;
  font-size: 0.76rem;
  color: var(--text-soft);
  margin-bottom: 12px;
}

/* ===== 信封贺卡 ===== */
.envelope {
  position: relative;
  width: 100%;
  max-width: 320px;
  margin: 8px auto 24px;
  cursor: pointer;
  perspective: 800px;
}

.envelope-body {
  background: linear-gradient(145deg, #fff 0%, var(--pink-soft) 100%);
  border-radius: var(--radius);
  padding: 48px 24px 32px;
  text-align: center;
  box-shadow: var(--shadow-warm);
  border: 1px solid rgba(244,164,184,0.25);
  position: relative;
  z-index: 1;
  transition: transform 0.4s ease;
}

.envelope-flap {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 80px;
  background: linear-gradient(180deg, var(--pink) 0%, #f8b4c4 100%);
  clip-path: polygon(0 0, 50% 70%, 100% 0);
  border-radius: var(--radius) var(--radius) 0 0;
  z-index: 2;
  transform-origin: top center;
  transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.envelope-seal {
  font-size: 2.4rem;
  display: block;
  animation: sealPulse 2s ease-in-out infinite;
}

@keyframes sealPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.08); }
}

.envelope-hint {
  font-size: 0.82rem;
  color: var(--text-soft);
  margin-bottom: 8px;
}

.envelope.open .envelope-flap {
  transform: rotateX(180deg);
  opacity: 0.6;
}

.envelope.open .envelope-body {
  transform: translateY(8px);
  opacity: 0;
  pointer-events: none;
}

.letter {
  position: absolute;
  inset: 0;
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px 22px;
  box-shadow: var(--shadow-warm);
  border: 1px solid var(--pink-soft);
  opacity: 0;
  transform: translateY(30px) scale(0.95);
  transition: opacity 0.5s ease 0.2s, transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.2s;
  z-index: 3;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.envelope.open .letter {
  opacity: 1;
  transform: none;
}

.letter-hand {
  font-family: 'Ma Shan Zheng', cursive;
  font-size: 1.3rem;
  color: var(--blue-dark);
  margin-bottom: 14px;
}

.letter-main {
  font-size: 0.88rem;
  line-height: 1.85;
  color: var(--text);
  margin-bottom: 18px;
}

/* 引用卡 */
.quote-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 22px 20px 18px;
  margin-bottom: 18px;
  box-shadow: var(--shadow);
  position: relative;
  border-left: 4px solid var(--pink);
}

.quote-mark {
  font-family: 'Ma Shan Zheng', cursive;
  font-size: 2.5rem;
  color: var(--pink);
  opacity: 0.35;
  line-height: 1;
  margin-bottom: -8px;
}

.quote-card p {
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--text);
}

.quote-from {
  display: block;
  text-align: right;
  margin-top: 12px;
  font-size: 0.82rem;
  color: var(--pink);
  font-family: 'Ma Shan Zheng', cursive;
}

/* 数据行 */
.stat-row {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

.stat-item {
  flex: 1;
  background: var(--card);
  border-radius: 14px;
  padding: 14px 8px;
  text-align: center;
  box-shadow: var(--shadow);
}

.stat-item strong {
  display: block;
  font-family: 'ZCOOL KuaiLe', cursive;
  font-size: 1.4rem;
  color: var(--blue-dark);
  margin-bottom: 2px;
}

.stat-item span {
  font-size: 0.68rem;
  color: var(--text-soft);
}

/* 按钮 */
.btn-warm {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 46px;
  padding: 0 24px;
  border: none;
  border-radius: 50px;
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--white);
  background: linear-gradient(135deg, var(--blue), var(--pink));
  box-shadow: var(--shadow-warm);
  cursor: pointer;
  transition: transform 0.15s;
}

.btn-warm:active { transform: scale(0.96); }
.btn-full { display: flex; width: 100%; }

/* ===== 五人头像 ===== */
.avatar-scroll {
  display: flex;
  flex-direction: column;
  gap: 14px;
  overflow-y: auto;
  overflow-x: hidden;
  scroll-snap-type: y mandatory;
  -webkit-overflow-scrolling: touch;
  padding: 6px 4px 14px;
  scrollbar-width: none;
}
.avatar-scroll::-webkit-scrollbar { display: none; }

.member-card {
  width: 100%;
  max-width: 280px;
  margin: 0 auto;
  scroll-snap-align: center;
  background: var(--card);
  border-radius: 22px;
  padding: 24px 18px 20px;
  text-align: center;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  border: 2px solid transparent;
}

.member-card:active {
  transform: scale(0.97);
  border-color: var(--pink);
  box-shadow: var(--shadow-warm);
}

.avatar-frame {
  width: 110px;
  height: 110px;
  margin: 0 auto 14px;
  border-radius: 50%;
  padding: 4px;
  background: linear-gradient(135deg, var(--blue), var(--pink));
  position: relative;
  box-shadow: 0 6px 20px rgba(123,167,216,0.25);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.avatar-frame::before {
  content: '';
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background: linear-gradient(135deg, #e8f2fa, #fce4ec);
  z-index: 0;
}

.member-card:active .avatar-frame {
  transform: scale(1.06) rotate(-2deg);
}

.avatar-frame.girl {
  background: linear-gradient(135deg, var(--pink), #f8bbd9);
}

.avatar-frame.me {
  background: linear-gradient(135deg, var(--gold), var(--blue));
}

.avatar-badge {
  position: absolute;
  bottom: 2px;
  right: 2px;
  width: 24px;
  height: 24px;
  background: var(--gold);
  color: #8b6914;
  font-size: 0.65rem;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--white);
}

.anime-avatar {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  display: block;
  object-fit: cover;
  position: relative;
  z-index: 1;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.anime-avatar.loaded {
  opacity: 1;
}

.anime-avatar.error {
  opacity: 0.5;
}

.anime-avatar.avatar-up {
  object-position: center 70%;
}

.anime-avatar.avatar-cu {
  object-position: center 36%;
}

.anime-avatar.avatar-down {
  object-position: center 40%;
}

.member-card h3 {
  font-family: 'ZCOOL KuaiLe', cursive;
  font-size: 1.15rem;
  color: var(--blue-dark);
  margin-bottom: 4px;
}

.member-card p {
  font-size: 0.74rem;
  color: var(--text-soft);
}

.scroll-dots {
  display: flex;
  justify-content: center;
  gap: 7px;
  margin-top: 6px;
}

.scroll-dots .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: rgba(123,167,216,0.25);
  transition: all 0.3s;
}

.scroll-dots .dot.active {
  width: 18px;
  border-radius: 4px;
  background: var(--pink);
}

/* ===== 时间线 ===== */
.story-banner {
  text-align: center;
  background: linear-gradient(135deg, var(--pink-soft), #fff9e6);
  border-radius: 50px;
  padding: 10px 16px;
  font-size: 0.82rem;
  color: #b4536a;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}

.timeline { display: flex; flex-direction: column; gap: 14px; }

.tl-item {
  display: flex;
  gap: 14px;
  background: var(--card);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s, transform 0.5s;
}

.tl-item.show { opacity: 1; transform: none; }

.tl-icon {
  flex-shrink: 0;
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--sky), var(--pink-soft));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}

.tl-body h4 {
  font-family: 'ZCOOL KuaiLe', cursive;
  font-size: 0.95rem;
  color: var(--blue-dark);
  margin-bottom: 6px;
}

.tl-body p {
  font-size: 0.84rem;
  line-height: 1.75;
  color: var(--text);
}

/* ===== 回忆卡片 ===== */
.memory-list { display: flex; flex-direction: column; gap: 12px; margin-bottom: 20px; }

.memory-card {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  min-height: 68px;
  padding: 14px 16px;
  background: var(--card);
  border: none;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: left;
  font-family: inherit;
  cursor: pointer;
  transition: transform 0.15s, background 0.15s;
}

.memory-card:active {
  transform: scale(0.98);
  background: linear-gradient(135deg, #fff, var(--pink-soft));
}

.mem-icon { font-size: 1.8rem; flex-shrink: 0; }

.memory-card strong {
  display: block;
  font-size: 0.92rem;
  color: var(--blue-dark);
  margin-bottom: 2px;
}

.memory-card small {
  font-size: 0.72rem;
  color: var(--text-soft);
}

.bless-card {
  background: linear-gradient(145deg, #fff 0%, var(--pink-soft) 60%, #fff9e6 100%);
  border-radius: 22px;
  padding: 24px 20px;
  text-align: center;
  box-shadow: var(--shadow-warm);
  border: 1px solid rgba(244,164,184,0.2);
}

.bless-deco { color: var(--pink); font-size: 0.8rem; letter-spacing: 6px; margin-bottom: 10px; }

.bless-title {
  font-family: 'ZCOOL KuaiLe', cursive;
  font-size: 1.2rem;
  color: var(--blue-dark);
  margin-bottom: 12px;
}

.bless-text {
  font-size: 0.86rem;
  line-height: 1.85;
  color: var(--text);
  margin-bottom: 18px;
}

/* ===== 底部 Tab ===== */
.tab-bar {
  flex-shrink: 0;
  display: flex;
  background: rgba(255,255,255,0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid rgba(123,167,216,0.1);
  padding-bottom: var(--safe-b);
  z-index: 10;
}

.tab {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  min-height: var(--tab-h);
  border: none;
  background: none;
  font-family: inherit;
  cursor: pointer;
  color: var(--text-soft);
  transition: color 0.2s;
}

.tab span { font-size: 1.25rem; transition: transform 0.2s; }
.tab small { font-size: 0.62rem; font-weight: 500; }
.tab.active { color: var(--blue-dark); }
.tab.active span { transform: scale(1.12); }
.tab:active span { transform: scale(0.92); }

/* ===== 弹窗 Sheet ===== */
.sheet {
  position: fixed;
  inset: 0;
  z-index: 200;
  pointer-events: none;
  visibility: hidden;
}

.sheet.open { pointer-events: auto; visibility: visible; }

.sheet-mask {
  position: absolute;
  inset: 0;
  background: rgba(45, 55, 72, 0.42);
  opacity: 0;
  transition: opacity 0.3s;
}

.sheet.open .sheet-mask { opacity: 1; }

.sheet-panel {
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%) translateY(100%);
  width: 100%;
  max-width: 430px;
  max-height: 82dvh;
  background: var(--white);
  border-radius: 22px 22px 0 0;
  padding: 8px 20px calc(20px + var(--safe-b));
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  transition: transform 0.35s cubic-bezier(0.32, 0.72, 0, 1);
}

.sheet.open .sheet-panel { transform: translateX(-50%) translateY(0); }

.sheet-bar {
  width: 36px; height: 4px;
  background: #dde4ec;
  border-radius: 2px;
  margin: 4px auto 16px;
}

.sheet-panel h2 {
  font-family: 'ZCOOL KuaiLe', cursive;
  font-size: 1.25rem;
  color: var(--blue-dark);
  text-align: center;
  margin-bottom: 16px;
}

.sheet-content p {
  font-size: 0.86rem;
  line-height: 1.85;
  margin-bottom: 12px;
  color: var(--text);
}

.sheet-sign {
  text-align: right;
  color: var(--pink) !important;
  font-family: 'Ma Shan Zheng', cursive;
  font-size: 0.95rem !important;
  line-height: 1.9 !important;
  margin-top: 8px !important;
}

.sheet-member-head {
  text-align: center;
  margin-bottom: 16px;
}

.sheet-avatar {
  width: 80px;
  height: 80px;
  margin: 0 auto 10px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--pink);
}

.sheet-avatar svg,
.sheet-avatar img { width: 100%; height: 100%; display: block; object-fit: cover; }

.sheet-msg {
  font-size: 0.88rem;
  line-height: 1.85;
  color: var(--text);
  text-align: center;
  padding: 0 8px 12px;
}

/* ===== Toast ===== */
.toast {
  position: fixed;
  left: 50%;
  bottom: calc(var(--tab-h) + var(--safe-b) + 14px);
  transform: translateX(-50%) translateY(20px);
  max-width: calc(100% - 32px);
  padding: 12px 18px;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(10px);
  border-radius: 50px;
  box-shadow: var(--shadow-warm);
  font-size: 0.82rem;
  color: var(--blue-dark);
  text-align: center;
  z-index: 300;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s, transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  border: 1px solid var(--pink-soft);
  line-height: 1.55;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ===== 飘落彩片 ===== */
.petals {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  max-width: 430px;
  left: 50%;
  transform: translateX(-50%);
  overflow: hidden;
}

.petal {
  position: absolute;
  top: -20px;
  animation: petalFall linear forwards;
  opacity: 0.75;
}

@keyframes petalFall {
  to {
    transform: translateY(110vh) rotate(720deg) translateX(40px);
    opacity: 0;
  }
}

#confettiCanvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 250;
  max-width: 430px;
  left: 50%;
  transform: translateX(-50%);
}