/* ==========================================
   婚礼请柬 - 现代简约风格
   配色：经典红金（胭脂红 + 香槟金）
   ========================================== */

/* CSS 变量定义 */
:root {
  /* 颜色 */
  --color-primary: #c41e3a; /* 胭脂红 - 主色 */
  --color-gold: #d4a853; /* 香槟金 - 强调色 */
  --color-background: #fafaf9; /* 米白色 - 背景 */
  --color-text-primary: #1c1917; /* 近黑色 - 主文字 */
  --color-text-secondary: #57534e; /* 温暖灰 - 次文字 */
  --color-white: #ffffff;
  --color-border: #e7e5e4; /* 边框色 */
  --color-footer-bg: #1c1917; /* 页脚背景 */

  /* 字体 */
  --font-family:
    'Microsoft YaHei', '微软雅黑', -apple-system, BlinkMacSystemFont,
    'Segoe UI', sans-serif;

  /* 间距 */
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 40px;
  --spacing-xl: 80px;
  --spacing-xxl: 120px;

  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.12);

  /* 过渡 */
  --transition-base: 250ms ease-out;
}

/* 全局样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  line-height: 1.6;
  color: var(--color-text-primary);
  background: var(--color-background);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* ==========================================
   Header - 囍字区域
   ========================================== */
.header {
  background: var(--color-background);
  padding: var(--spacing-xl) 0;
  text-align: center;
  position: relative;
}

.xi-wrapper {
  display: inline-block;
  position: relative;
  padding: var(--spacing-lg);
}

/* 金色四角装饰框 */
.xi-wrapper::before,
.xi-wrapper::after {
  content: '';
  position: absolute;
  width: 40px;
  height: 40px;
  border: 2px solid var(--color-gold);
}

.xi-wrapper::before {
  top: 0;
  left: 0;
  border-right: none;
  border-bottom: none;
}

.xi-wrapper::after {
  top: 0;
  right: 0;
  border-left: none;
  border-bottom: none;
}

.xi-wrapper .corner-bottom-left,
.xi-wrapper .corner-bottom-right {
  position: absolute;
  width: 40px;
  height: 40px;
  border: 2px solid var(--color-gold);
}

.xi-wrapper .corner-bottom-left {
  bottom: 0;
  left: 0;
  border-right: none;
  border-top: none;
}

.xi-wrapper .corner-bottom-right {
  bottom: 0;
  right: 0;
  border-left: none;
  border-top: none;
}

.xi-character {
  font-size: 5rem;
  color: var(--color-primary);
  font-weight: bold;
  letter-spacing: 0.1em;
}

/* ==========================================
   Invitation Intro - 邀请开场
   ========================================== */
.invitation-intro {
  padding: var(--spacing-xxl) 0;
  text-align: center;
  background: var(--color-white);
}

.couple-names {
  font-size: 2.5rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  letter-spacing: 0.15em;
}

/* 金色分割线 */
.couple-names::after {
  content: '';
  display: block;
  width: 80px;
  height: 2px;
  background: var(--color-gold);
  margin: var(--spacing-md) auto var(--spacing-lg);
}

.invitation-text {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  line-height: 2.2;
}

.main-photo {
  margin-top: var(--spacing-lg);
}

.main-photo img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 2px solid var(--color-gold);
  box-shadow: var(--shadow-lg);
  transition: box-shadow var(--transition-base);
}

.main-photo img:hover {
  box-shadow: var(--shadow-xl);
}

/* ==========================================
   Marriage Meaning - 婚姻的意义
   ========================================== */
.marriage-meaning {
  padding: var(--spacing-xxl) 0;
  background: var(--color-background);
}

.marriage-meaning h2 {
  text-align: center;
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xl);
  font-weight: 600;
}

/* 内容容器 */
.meaning-content {
  max-width: 800px;
  margin: 0 auto;
}

/* 段落区块 */
.meaning-section {
  margin-bottom: var(--spacing-xl);
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 300ms ease-out,
    transform 300ms ease-out;
}

.meaning-section.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 文字排版 - 诗词/散文风格 */
.meaning-text {
  font-family:
    'Noto Serif SC', 'Source Han Serif CN', 'STSong', 'SimSun', serif;
  font-size: 1.25rem;
  color: var(--color-text-primary);
  text-align: center;
  line-height: 2.4;
  padding: var(--spacing-lg) var(--spacing-md);
  white-space: pre-line;
  letter-spacing: 0.05em;
}

/* 装饰分隔线 */
.meaning-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  margin: var(--spacing-md) 0;
}

.meaning-divider::before,
.meaning-divider::after {
  content: '';
  width: 40px;
  height: 1px;
  background: var(--color-gold);
}

.meaning-divider .diamond {
  width: 8px;
  height: 8px;
  background: var(--color-gold);
  transform: rotate(45deg);
}

/* 照片容器 - 通用 */
.meaning-photos {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

/* 单图布局 */
.meaning-photos.single-photo {
  display: block;
}

.meaning-photos.single-photo img {
  display: block;
  max-width: 600px;
  width: 100%;
  height: auto;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  border: 2px solid var(--color-gold);
  box-shadow: var(--shadow-lg);
  transition:
    transform 300ms ease-out,
    box-shadow 300ms ease-out;
  cursor: pointer;
}

.meaning-photos.single-photo img:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-xl);
}

/* 双图布局 */
.meaning-photos.dual-photo {
  display: flex;
  flex-wrap: wrap;
}

.meaning-photos.dual-photo img {
  flex: 1 1 calc(50% - var(--spacing-sm));
  max-width: calc(50% - var(--spacing-sm));
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 2px solid var(--color-gold);
  box-shadow: var(--shadow-md);
  transition:
    transform 300ms ease-out,
    box-shadow 300ms ease-out;
  cursor: pointer;
}

.meaning-photos.dual-photo img:hover {
  transform: scale(1.03);
  box-shadow: var(--shadow-lg);
}

/* 照片渐入动画 */
.meaning-photos img {
  opacity: 0;
  transform: scale(0.95);
  transition:
    opacity 300ms ease-out,
    transform 300ms ease-out,
    box-shadow 300ms ease-out;
}

.meaning-photos img.visible {
  opacity: 1;
  transform: scale(1);
}

.meaning-photos img.visible:hover {
  transform: scale(1.02);
}

/* 双图交错延迟 */
.meaning-photos.dual-photo img:nth-child(2) {
  transition-delay: 100ms;
}

/* @deprecated - 旧版爱情故事样式（保留兼容） */
.love-story {
  display: none;
}

.timeline,
.timeline-item,
.timeline-card,
.story-item {
  display: none;
}

/* ==========================================
   Couple Portraits - 新郎新娘
   ========================================== */
.couple-portraits {
  padding: var(--spacing-xxl) 0;
  background: var(--color-white);
  text-align: center;
}

.couple-portraits h2 {
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xl);
  font-weight: 600;
}

.portraits {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-xl);
}

.portrait {
  text-align: center;
}

.portrait img {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  border: 2px solid var(--color-gold);
  box-shadow: var(--shadow-md);
  transition: box-shadow var(--transition-base);
}

.portrait img:hover {
  box-shadow: var(--shadow-lg);
}

.portrait h3 {
  font-size: 1.25rem;
  color: var(--color-primary);
  margin: var(--spacing-md) 0 var(--spacing-xs);
  font-weight: 600;
}

.portrait p {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
}

/* 几何装饰分隔符 */
.portrait-divider {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
}

.portrait-divider::before {
  content: '';
  width: 40px;
  height: 1px;
  background: var(--color-gold);
}

.portrait-divider .diamond {
  width: 12px;
  height: 12px;
  background: var(--color-gold);
  transform: rotate(45deg);
}

.portrait-divider::after {
  content: '';
  width: 40px;
  height: 1px;
  background: var(--color-gold);
}

/* 隐藏旧版爱心 */
.heart {
  display: none;
}

/* ==========================================
   Wedding Date - 日历
   ========================================== */
.wedding-date {
  padding: var(--spacing-xxl) 0;
  background: var(--color-background);
  text-align: center;
}

.calendar {
  max-width: 380px;
  margin: 0 auto;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  border: 2px solid var(--color-gold);
}

.calendar-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, #a31830 100%);
  color: var(--color-white);
  padding: var(--spacing-lg) var(--spacing-md);
  position: relative;
}

.calendar-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 2px;
  background: var(--color-gold);
  opacity: 0.6;
}

.calendar-header h2 {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-gold);
  margin: 0;
}

.calendar-year-month {
  font-size: 1rem;
  opacity: 0.9;
  margin-top: var(--spacing-xs);
  letter-spacing: 0.05em;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0;
  padding: var(--spacing-sm);
  background: var(--color-white);
}

.day-header {
  background: transparent;
  padding: var(--spacing-sm) 4px;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-align: center;
  font-size: 0.8125rem;
  border-bottom: 1px solid var(--color-border);
}

/* 周日标红 */
.day-header:first-child {
  color: var(--color-primary);
}

/* 周六标金 */
.day-header:last-child {
  color: var(--color-gold);
}

.day {
  background: var(--color-white);
  padding: var(--spacing-sm) 4px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-base);
  font-size: 0.9375rem;
  border-radius: var(--radius-sm);
  margin: 2px;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.day:hover:not(.empty):not(.wedding-day) {
  background: #fef2f2;
  color: var(--color-primary);
}

/* 空日期单元格 */
.day.empty {
  cursor: default;
  background: transparent;
}

.day.empty:hover {
  background: transparent;
}

/* 婚礼日期标记 */
.wedding-day {
  background: var(--color-primary) !important;
  color: var(--color-gold) !important;
  font-weight: 700;
  position: relative;
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(196, 30, 58, 0.4);
  transform: scale(1.1);
  font-size: 1rem;
}

.wedding-day::before {
  content: '10';
  position: absolute;
  inset: -3px;
  border: 2px solid var(--color-gold);
  border-radius: 50%;
  animation: weddingDayPulse 2s ease-in-out infinite;
  display: contents;
}

@keyframes weddingDayPulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.6;
    transform: scale(1.05);
  }
}

.wedding-time {
  padding: var(--spacing-lg);
  background: linear-gradient(180deg, #fafaf9 0%, #f5f5f4 100%);
  border-top: 1px solid var(--color-border);
}

.wedding-time p {
  font-size: 1.0625rem;
  color: var(--color-text-primary);
  font-weight: 500;
  margin: 6px 0;
}

.wedding-time p:first-child {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-primary);
}

/* ==========================================
   Wedding Venue - 地点
   ========================================== */
.wedding-venue {
  padding: var(--spacing-xxl) 0;
  background: var(--color-white);
}

.wedding-venue h2 {
  text-align: center;
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xl);
  font-weight: 600;
}

.venue-info {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.venue-card {
  background: var(--color-background);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
}

.venue-card h3 {
  font-size: 1.5rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  font-weight: 600;
}

.venue-detail {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.venue-detail-item {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-xs);
}

.venue-label {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
}

.venue-value {
  color: var(--color-text-primary);
  font-size: 1rem;
}

.map-container {
  margin: var(--spacing-lg) 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

/* 胶囊型按钮 */
.map-btn {
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 1rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
  font-weight: 500;
}

.map-btn:hover {
  background: #a31830;
  box-shadow: var(--shadow-md);
}

/* ==========================================
   Thank You - 感谢语
   ========================================== */
.thank-you {
  padding: var(--spacing-xxl) 0;
  background: var(--color-background);
  text-align: center;
}

.thank-you h2 {
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-lg);
  font-weight: 600;
}

.thank-text {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  line-height: 2.2;
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.thank-photo {
  margin: var(--spacing-lg) 0;
}

.thank-photo img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 2px solid var(--color-gold);
  box-shadow: var(--shadow-lg);
}

.signature {
  font-size: 1.125rem;
  color: var(--color-primary);
  font-weight: 600;
  margin-top: var(--spacing-lg);
}

/* ==========================================
   Footer - 页脚
   ========================================== */
.footer {
  background: var(--color-footer-bg);
  color: rgba(255, 255, 255, 0.7);
  text-align: center;
  padding: var(--spacing-lg) 0;
  font-size: 0.875rem;
}

/* ==========================================
   响应式设计 - 768px
   ========================================== */
@media (max-width: 768px) {
  :root {
    --spacing-xl: 60px;
    --spacing-xxl: 80px;
  }

  .xi-character {
    font-size: 4rem;
  }

  .xi-wrapper::before,
  .xi-wrapper::after,
  .xi-wrapper .corner-bottom-left,
  .xi-wrapper .corner-bottom-right {
    width: 30px;
    height: 30px;
  }

  .couple-names {
    font-size: 2rem;
  }

  /* 婚姻的意义 - 平板适配 */
  .meaning-text {
    font-size: 1.125rem;
    line-height: 2.2;
  }

  .meaning-photos.single-photo img {
    max-width: 100%;
  }

  .portraits {
    flex-direction: column;
    gap: var(--spacing-lg);
  }

  .portrait-divider {
    flex-direction: row;
  }

  .portrait-divider::before,
  .portrait-divider::after {
    width: 1px;
    height: 40px;
  }

  .calendar {
    margin: 0 var(--spacing-sm);
    max-width: 100%;
  }

  .day {
    padding: var(--spacing-xs) 2px;
    font-size: 0.875rem;
  }

  .wedding-day {
    transform: scale(1.05);
  }

  .calendar-header h2 {
    font-size: 1.25rem;
  }

  .calendar-year-month {
    font-size: 0.9375rem;
  }

  h2 {
    font-size: 1.75rem !important;
  }
}

/* ==========================================
   响应式设计 - 480px
   ========================================== */
@media (max-width: 480px) {
  :root {
    --spacing-xl: 48px;
    --spacing-xxl: 64px;
  }

  .container {
    padding: 0 var(--spacing-sm);
  }

  .xi-character {
    font-size: 3rem;
  }

  .xi-wrapper {
    padding: var(--spacing-md);
  }

  .xi-wrapper::before,
  .xi-wrapper::after,
  .xi-wrapper .corner-bottom-left,
  .xi-wrapper .corner-bottom-right {
    width: 24px;
    height: 24px;
  }

  .couple-names {
    font-size: 1.5rem;
  }

  .invitation-text {
    font-size: 1rem;
  }

  /* 婚姻的意义 - 手机适配 */
  .meaning-text {
    font-size: 1rem;
    line-height: 2;
    padding: var(--spacing-md) var(--spacing-sm);
  }

  .meaning-photos.dual-photo {
    flex-direction: column;
  }

  .meaning-photos.dual-photo img {
    flex: 1 1 100%;
    max-width: 100%;
  }

  .meaning-photos.dual-photo img:nth-child(2) {
    transition-delay: 150ms;
  }

  .meaning-divider::before,
  .meaning-divider::after {
    width: 30px;
  }

  .portrait img {
    width: 150px;
    height: 150px;
  }

  .day-header,
  .day {
    padding: var(--spacing-xs) 2px;
    font-size: 0.75rem;
  }

  .day-header {
    font-size: 0.6875rem;
  }

  .wedding-day {
    font-size: 0.875rem;
  }

  .calendar-header h2 {
    font-size: 1.125rem;
  }

  .calendar-year-month {
    font-size: 0.875rem;
  }

  h2 {
    font-size: 1.5rem !important;
  }
}

/* ==========================================
   点击爱心动画（保留）
   ========================================== */
@keyframes heartFloat {
  0% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translateY(-80px) scale(0.5);
  }
}

/* ==========================================
   无障碍 - 减少动画
   ========================================== */
@media (prefers-reduced-motion: reduce) {
  .meaning-section,
  .meaning-photos img {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .meaning-photos.dual-photo img:nth-child(2) {
    transition-delay: 0ms;
  }

  .wedding-day::before {
    animation: none;
  }
}

/* ==========================================
   信封封面 - Envelope Cover
   ========================================== */
.envelope-cover {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  pointer-events: auto;
}

/* 信封封面隐藏状态 */
.envelope-cover.hidden {
  pointer-events: none;
}

/* 上封面 */
.envelope-top {
  flex: 1;
  background: linear-gradient(180deg, #8b0000 0%, #c41e3a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.envelope-cover.opening .envelope-top {
  transform: translateY(-100%);
}

/* 上封面底部装饰边 */
.envelope-top::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 8px;
  background: linear-gradient(90deg,
    transparent 0%,
    var(--color-gold) 20%,
    var(--color-gold) 80%,
    transparent 100%
  );
}

/* 送呈内容 */
.envelope-content {
  text-align: center;
  color: var(--color-gold);
}

.envelope-label {
  font-size: 1.25rem;
  letter-spacing: 0.3em;
  margin-bottom: var(--spacing-sm);
  opacity: 0.9;
}

.envelope-name {
  font-size: 2.5rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  margin-bottom: var(--spacing-sm);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.envelope-suffix {
  font-size: 1.25rem;
  letter-spacing: 0.3em;
  opacity: 0.9;
}

/* 亲启按钮（信封封口） */
.envelope-seal {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 10;
  background: var(--color-gold);
  border: none;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  cursor: pointer;
  box-shadow:
    0 4px 16px rgba(0, 0, 0, 0.3),
    inset 0 2px 4px rgba(255, 255, 255, 0.3);
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.envelope-seal:hover {
  transform: translate(-50%, -50%) scale(1.1);
  box-shadow:
    0 6px 24px rgba(0, 0, 0, 0.4),
    inset 0 2px 4px rgba(255, 255, 255, 0.3);
}

.envelope-seal:active {
  transform: translate(-50%, -50%) scale(0.95);
}

.envelope-cover.opening .envelope-seal {
  opacity: 0;
  transform: translate(-50%, -50%) scale(0);
  transition: all 0.3s ease;
}

.seal-text {
  color: #8b0000;
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: 0.1em;
}

/* 下封面 */
.envelope-bottom {
  flex: 1;
  background: linear-gradient(0deg, #8b0000 0%, #c41e3a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
}

.envelope-cover.opening .envelope-bottom {
  transform: translateY(100%);
}

/* 下封面顶部装饰边 */
.envelope-bottom::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 8px;
  background: linear-gradient(90deg,
    transparent 0%,
    var(--color-gold) 20%,
    var(--color-gold) 80%,
    transparent 100%
  );
}

/* 下封面装饰 */
.envelope-decoration {
  display: flex;
  align-items: center;
  justify-content: center;
}

.decoration-diamond {
  width: 16px;
  height: 16px;
  background: var(--color-gold);
  transform: rotate(45deg);
  opacity: 0.6;
}

/* 信封封面响应式 - 768px */
@media (max-width: 768px) {
  .envelope-name {
    font-size: 2rem;
  }

  .envelope-label,
  .envelope-suffix {
    font-size: 1.125rem;
  }

  .envelope-seal {
    width: 70px;
    height: 70px;
  }

  .seal-text {
    font-size: 1rem;
  }
}

/* 信封封面响应式 - 480px */
@media (max-width: 480px) {
  .envelope-name {
    font-size: 1.75rem;
  }

  .envelope-label,
  .envelope-suffix {
    font-size: 1rem;
  }

  .envelope-seal {
    width: 64px;
    height: 64px;
  }

  .seal-text {
    font-size: 0.9375rem;
  }
}

/* 信封封面 - 减少动画 */
@media (prefers-reduced-motion: reduce) {
  .envelope-top,
  .envelope-bottom,
  .envelope-seal {
    transition: none;
  }

  .envelope-cover.opening .envelope-top {
    transform: translateY(-100%);
  }

  .envelope-cover.opening .envelope-bottom {
    transform: translateY(100%);
  }
}