/* 主页样式 - 暖心正能量风格 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: linear-gradient(135deg, #fff5eb 0%, #ffe4d6 25%, #ffd6c4 50%, #ffc4b0 75%, #ffb09c 100%);
  min-height: 100vh;
  overflow-x: hidden;
  color: #5c3d2e;
  position: relative;
}

/* 温暖光效背景 */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 15% 25%, rgba(255, 200, 150, 0.35) 0%, transparent 50%),
    radial-gradient(ellipse at 85% 75%, rgba(255, 180, 120, 0.25) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(255, 220, 180, 0.15) 0%, transparent 60%);
  z-index: 0;
  pointer-events: none;
}

/* 额外的温暖光点 */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 30% 60%, rgba(255, 165, 100, 0.12) 0%, transparent 30%),
    radial-gradient(circle at 70% 30%, rgba(255, 190, 130, 0.1) 0%, transparent 35%);
  z-index: 0;
  pointer-events: none;
  animation: warmGlow 8s ease-in-out infinite;
}

@keyframes warmGlow {
  0%, 100% { opacity: 0.8; }
  50% { opacity: 1; }
}

#particles-js {
  position: fixed;
  inset: 0;
  z-index: -1;
}

/* ============================================================
   头部 - 温暖橙色渐变背景
   ============================================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 10000;
  background: linear-gradient(135deg, #ffb09c 0%, #ffc4b0 50%, #ffd6c4 100%);
  border-bottom: 1px solid rgba(255, 180, 140, 0.5);
  box-shadow: 0 2px 20px rgba(255, 140, 100, 0.2);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.55rem 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

/* 随机故事按钮 - 温暖橙色 */
.random-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255, 255, 255, 0.6);
  border: 1.5px solid rgba(255, 160, 80, 0.7);
  border-radius: 25px;
  padding: 0.4rem 1rem;
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  color: #d06820;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(255, 160, 80, 0.25);
  cursor: pointer;
}

.random-btn:hover {
  background: rgba(255, 255, 255, 0.85);
  border-color: rgba(255, 160, 80, 1);
  box-shadow: 0 4px 12px rgba(255, 160, 80, 0.4);
  transform: translateY(-1px);
  color: #b85810;
}

.random-btn i {
  font-size: 0.95rem;
}

/* 主标题按钮 - 爱心红 */
.logo {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  background: rgba(255, 255, 255, 0.7);
  border: 2px solid rgba(255, 100, 80, 0.6);
  border-radius: 40px;
  padding: 0.45rem 1.4rem;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 2px 10px rgba(255, 100, 80, 0.2);
}

.logo:hover {
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 4px 15px rgba(255, 100, 80, 0.3);
  transform: translateY(-1px);
}

.logo .fa-heart {
  color: #ff6b6b;
  font-size: 1.3rem;
  animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  25%       { transform: scale(1.2); }
  50%       { transform: scale(1.08); }
  75%       { transform: scale(1.15); }
}

.logo-text {
  font-size: 1.4rem;
  font-weight: 700;
  background: linear-gradient(135deg, #ff6b6b, #ff8e72);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 0.05em;
}

.logo-info {
  font-size: 0.95rem;
  color: #ff8e72;
  opacity: 0.9;
  margin-left: 0.1rem;
}

/* ============================================================
   介绍弹窗 - 温暖正能量
   ============================================================ */
.intro-overlay {
  position: fixed;
  inset: 0;
  z-index: 20000;
  background: rgba(100, 40, 20, 0.4);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.intro-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.intro-modal {
  background: linear-gradient(160deg, #fffaf5 0%, #fff5eb 50%, #ffe8d6 100%);
  border-radius: 24px;
  padding: 2.5rem 2.2rem 2rem;
  max-width: 480px;
  width: 90%;
  position: relative;
  box-shadow: 0 20px 60px rgba(255, 120, 80, 0.2);
  border: 1px solid rgba(255, 180, 140, 0.4);
  transform: scale(0.9);
  transition: transform 0.3s ease;
  text-align: center;
}

.intro-overlay.active .intro-modal {
  transform: scale(1);
}

.intro-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(255, 140, 100, 0.15);
  border: none;
  border-radius: 50%;
  width: 32px;
  height: 32px;
  cursor: pointer;
  color: #e08050;
  font-size: 0.9rem;
  transition: background 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.intro-close:hover {
  background: rgba(255, 140, 100, 0.3);
}

.intro-icon {
  font-size: 2.8rem;
  color: #ff6b6b;
  margin-bottom: 0.8rem;
  animation: heartbeat 1.5s ease-in-out infinite;
}

.intro-title {
  font-size: 1.9rem;
  font-weight: 700;
  color: #ff6b6b;
  margin-bottom: 0.6rem;
  letter-spacing: 0.08em;
}

.intro-divider {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, #ff8e72, #ffa07a, #ffb09c);
  border-radius: 2px;
  margin: 0 auto 1.2rem;
}

.intro-body {
  font-size: 0.95rem;
  line-height: 1.9;
  color: #8b5a3c;
  margin-bottom: 0.9rem;
  text-align: left;
}

.intro-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-top: 1.2rem;
}

.intro-tags span {
  background: linear-gradient(135deg, rgba(255,140,100,0.15), rgba(255,160,120,0.2));
  border: 1px solid rgba(255, 140, 100, 0.4);
  border-radius: 20px;
  padding: 0.3rem 0.8rem;
  font-size: 0.82rem;
  color: #e87040;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

/* ============================================================
   云展厅链接按钮 - 温暖紫橙
   ============================================================ */
.vr-link {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255, 255, 255, 0.6);
  border: 1.5px solid rgba(180, 120, 200, 0.6);
  border-radius: 25px;
  padding: 0.4rem 1rem;
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  color: #9060c0;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(180, 120, 200, 0.25);
  cursor: pointer;
}

.vr-link:hover {
  background: rgba(255, 255, 255, 0.85);
  border-color: rgba(180, 120, 200, 1);
  box-shadow: 0 4px 12px rgba(180, 120, 200, 0.4);
  transform: translateY(-1px);
  color: #8050b0;
}

.vr-link i {
  font-size: 0.95rem;
}

/* ============================================================
   云展厅弹窗
   ============================================================ */
.vr-overlay {
  position: fixed;
  inset: 0;
  z-index: 20000;
  background: rgba(80, 40, 60, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.vr-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.vr-modal {
  background: linear-gradient(160deg, #fff8f5 0%, #fff0eb 50%, #ffe8e0 100%);
  border-radius: 24px;
  padding: 2.5rem 2.2rem 2rem;
  max-width: 450px;
  width: 90%;
  position: relative;
  box-shadow: 0 20px 60px rgba(180, 120, 200, 0.25);
  border: 1px solid rgba(180, 120, 200, 0.35);
  transform: scale(0.9);
  transition: transform 0.3s ease;
  text-align: center;
}

.vr-overlay.active .vr-modal {
  transform: scale(1);
}

.vr-modal .intro-icon {
  color: #a070d0;
  animation: none;
}

.vr-modal .intro-title {
  color: #a070d0;
}

.vr-modal .intro-divider {
  background: linear-gradient(90deg, #a070d0, #c090e0);
}

.vr-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  margin: 1.2rem 0;
  text-align: left;
}

.vr-feature-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  color: #7a5a8a;
  padding: 0.5rem 0.8rem;
  background: rgba(180, 120, 200, 0.1);
  border-radius: 12px;
}

.vr-feature-item i {
  color: #a070d0;
  font-size: 0.9rem;
}

.vr-enter-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, #7040a0 0%, #9060c0 100%);
  color: #ffffff;
  text-decoration: none;
  padding: 0.85rem 2rem;
  border-radius: 30px;
  font-size: 1rem;
  font-weight: 700;
  margin-top: 0.5rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(120, 80, 160, 0.5);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.vr-enter-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(120, 80, 160, 0.6);
  background: linear-gradient(135deg, #603090 0%, #8050b0 100%);
}

/* 按钮组 */
.vr-btn-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: stretch;
  gap: 0.6rem;
  margin-top: 0.5rem;
}

/* 次要按钮 - 继续浏览 */
.vr-continue-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  background: transparent;
  color: #7040a0;
  text-decoration: none;
  padding: 0.85rem 1.5rem;
  border-radius: 30px;
  font-size: 1rem;
  font-weight: 700;
  border: 2px solid #9060c0;
  cursor: pointer;
  transition: all 0.3s ease;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.vr-continue-btn:hover {
  background: rgba(112, 64, 160, 0.1);
  border-color: #7040a0;
  color: #603090;
}

/* 手机端云展播弹窗紧凑样式 */
@media (max-width: 768px) {
  .vr-modal {
    padding: 1.5rem 1.2rem 1.2rem;
    max-width: 320px;
  }
  
  .vr-modal .intro-icon {
    width: 50px;
    height: 50px;
    margin: 0 auto 0.4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(160, 112, 208, 0.1);
    border-radius: 50%;
  }
  
  .vr-modal .intro-icon i {
    font-size: 1.5rem;
  }
  
  .vr-modal .intro-title {
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
  }
  
  .vr-modal .intro-divider {
    width: 40px;
    margin-bottom: 0.5rem;
  }
  
  .vr-modal .intro-body {
    font-size: 0.8rem;
    margin-bottom: 0.6rem;
    line-height: 1.4;
  }
  
  .vr-features {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    margin: 0.6rem 0;
    gap: 0.4rem;
  }
  
  .vr-feature-item {
    font-size: 0.7rem;
    padding: 0.35rem 0.5rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  
  .vr-feature-item i {
    font-size: 0.75rem;
  }
  
  .vr-enter-btn {
    padding: 0.65rem 1.5rem;
    font-size: 0.9rem;
    font-weight: 700;
    margin-top: 0.3rem;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
  
  .vr-btn-group {
    gap: 0.5rem;
  }
  
  .vr-continue-btn {
    padding: 0.6rem 1.2rem;
    font-size: 0.85rem;
  }
}

/* ============================================================
   照片墙
   ============================================================ */
.photo-wall-container {
  position: relative;
  overflow: hidden;
  padding-top: 70px; /* JS 会覆写为头部实际高度 + 4px 间距 */
}

.photo-wall {
  width: 100%;
  height: calc(100vh - 70px); /* JS 会覆写 */
  overflow: hidden;
  display: flex;
  align-items: center;
}

.scroll-track {
  display: flex;
  flex-direction: row;
  align-items: stretch;
  height: 100%;
  width: max-content;
  will-change: transform;
  user-select: none;
  -webkit-user-select: none;
  touch-action: pan-y;
}

.scroll-group {
  display: flex;
  flex-direction: row;
  align-items: stretch;
  height: 100%;
  flex-shrink: 0;
}

.photo-column {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 6px;
  padding: 0 3px;
  flex-shrink: 0;
  align-self: stretch;
}

.photo-item {
  width: 150px;
  flex: 1;
  min-height: 120px;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(255, 140, 100, 0.25);
  background: transparent;
  opacity: 0.93;
  position: relative;
  flex-shrink: 0;
  perspective: 600px;
  transition: box-shadow 0.3s ease, opacity 0.3s ease;
}

.photo-item:hover {
  box-shadow: 0 10px 32px rgba(255, 120, 80, 0.4);
  z-index: 100;
  opacity: 1;
}

/* 翻转内层 */
.photo-item-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform 0.65s cubic-bezier(0.4, 0.2, 0.2, 1);
  border-radius: 12px;
}

.photo-item.flipped .photo-item-inner {
  transform: rotateY(180deg);
}

/* 正面：照片 */
.photo-front {
  position: absolute;
  inset: 0;
  border-radius: 12px;
  overflow: hidden;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  background: #ffe8d8;
}

.photo-front img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* 正面底部姓名条 */
.photo-name {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  background: linear-gradient(transparent, rgba(255, 100, 80, 0.75));
  color: #fff;
  text-align: center;
  font-size: 0.75rem;
  padding: 10px 4px 5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: 0.04em;
}

/* 背面：文字简介 */
.photo-back {
  position: absolute;
  inset: 0;
  border-radius: 12px;
  overflow: hidden;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transform: rotateY(180deg);
  background: linear-gradient(160deg, #fffaf5 0%, #fff0eb 50%, #ffe8e0 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 8px 6px;
  text-align: center;
  border: 1.5px solid rgba(255, 160, 120, 0.4);
}

.photo-back-name {
  font-size: 0.82rem;
  font-weight: 700;
  color: #ff6b6b;
  margin-bottom: 5px;
  line-height: 1.3;
  letter-spacing: 0.03em;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  text-overflow: ellipsis;
}

.photo-back-summary {
  font-size: 0.7rem;
  color: #8b5a3c;
  line-height: 1.55;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 6;
  -webkit-box-orient: vertical;
  text-align: left;
}

.photo-back-icon {
  font-size: 1.2rem;
  color: #ff8e72;
  margin-bottom: 6px;
}

.no-data {
  color: rgba(255, 140, 100, 0.8);
  font-size: 1.2rem;
  text-align: center;
  padding: 40px;
  width: 100%;
}

/* ============================================================
   底部浮动统计栏 - 温暖风格
   ============================================================ */
.bottom-bar {
  position: fixed;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9000;
  display: flex;
  align-items: center;
  gap: 0;
  background: rgba(255, 250, 245, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 180, 140, 0.4);
  border-radius: 40px;
  padding: 0.55rem 1.5rem;
  box-shadow: 0 6px 30px rgba(255, 140, 100, 0.18);
  white-space: nowrap;
}

.bottom-bar .stat-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0 0.9rem;
}

.stat-icon {
  font-size: 1.1rem;
  color: #ff8e72;
}

.stat-number {
  font-size: 1.1rem;
  font-weight: 700;
  color: #ff6b6b;
  line-height: 1.2;
}

.stat-label {
  font-size: 0.7rem;
  color: #e08050;
  line-height: 1.2;
}

.stat-divider {
  width: 1px;
  height: 28px;
  background: rgba(255, 160, 120, 0.35);
  flex-shrink: 0;
}

.stat-copyright {
  font-size: 0.75rem;
  color: #d07050;
  padding: 0 0.6rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
}

.tech-support-text {
  font-size: 0.7rem;
  color: #c06040;
  opacity: 0.9;
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 768px) {
  .random-btn {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    padding: 0.35rem 0.8rem;
    font-size: 0.8rem;
  }

  .random-btn span {
    display: none;
  }

  .random-btn i {
    font-size: 1rem;
  }

  .vr-link {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    padding: 0.35rem 0.8rem;
    font-size: 0.8rem;
  }

  .vr-link span {
    display: none;
  }

  .vr-link i {
    font-size: 1rem;
  }

  .header-inner {
    justify-content: center;
    padding: 0.5rem 1rem;
    position: relative;
  }

  .logo-text {
    font-size: 1.1rem;
  }

  .photo-item {
    width: 110px;
    min-height: 90px;
  }

  .photo-column {
    gap: 4px;
    padding: 0 2px;
  }

  .vr-features {
    grid-template-columns: 1fr;
  }

  .bottom-bar {
    padding: 0.45rem 0.8rem;
    bottom: 12px;
    border-radius: 30px;
  }

  .bottom-bar .stat-item {
    padding: 0 0.5rem;
    gap: 0.35rem;
  }

  .stat-icon {
    font-size: 0.95rem;
  }

  .stat-number {
    font-size: 0.95rem;
  }

  .stat-label {
    font-size: 0.62rem;
  }

  .stat-copyright {
    display: none;
  }
}

@media (max-width: 480px) {
  .photo-item {
    width: 85px;
    min-height: 70px;
  }

  .photo-column {
    gap: 3px;
    padding: 0 2px;
  }

  .bottom-bar {
    gap: 0;
    padding: 0.4rem 0.6rem;
  }
}