body, html {
  margin: 0;
  padding: 0;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background: linear-gradient(120deg, #0a101a 0%, #181f2a 100%);
  font-family: 'Segoe UI', 'Arial', sans-serif;
}
#bg-canvas {
  position: fixed;
  left: 0; top: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  display: block;
}
.site-header {
  position: fixed;
  top: 32px;
  left: 0;
  height: 72px;
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 0 48px;
  z-index: 20;
  background: none;
  box-shadow: none;
  border-bottom: none;
  width: 100%;
  justify-content: space-between;
  box-sizing: border-box;
}
.site-logo {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: none;
  object-fit: cover;
  box-shadow: 0 2px 8px 1px #000a, 0 0 16px 4px #a259ff;
  border: 2.5px solid #fff2;
}
.site-title {
  color: #fff;
  font-size: 2.1rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-shadow: 0 2px 12px #000a;
  font-family: 'Segoe UI', 'Arial', sans-serif;
}
.logo-container {
  position: absolute;
  left: 0; top: 0;
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  pointer-events: none;
}
.logo-list {
  position: relative;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
}
.logo {
  position: absolute;
  border-radius: 50%;
  overflow: hidden;
  pointer-events: auto;
  box-shadow: 0 2px 8px 1px #000a, 0 0 16px 4px var(--glow-main, #a259ff);
  transition: transform 0.25s, filter 0.25s, box-shadow 0.25s;
  will-change: transform;
  background: none !important;
  animation: logo-breath 3.2s ease-in-out infinite alternate;
}
.logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  pointer-events: none;
  background: none;
}
.logo:hover {
  z-index: 2;
  filter: brightness(1.13);
  box-shadow: 0 4px 16px 3px #000c, 0 0 24px 8px var(--glow-main, #43e7fe);
}
@keyframes logo-breath {
  0% { transform: scale(1); }
  50% { transform: scale(1.08); }
  100% { transform: scale(1); }
}
/* 20种不同的颜色和背光 */
.logo:nth-child(1) { background: #ff6b6b; box-shadow: 0 0 40px 10px #ff6b6b55; --logo-color: #ff6b6b; }
.logo:nth-child(2) { background: #feca57; box-shadow: 0 0 40px 10px #feca5755; --logo-color: #feca57; }
.logo:nth-child(3) { background: #48dbfb; box-shadow: 0 0 40px 10px #48dbfb55; --logo-color: #48dbfb; }
.logo:nth-child(4) { background: #1dd1a1; box-shadow: 0 0 40px 10px #1dd1a155; --logo-color: #1dd1a1; }
.logo:nth-child(5) { background: #5f27cd; box-shadow: 0 0 40px 10px #5f27cd55; --logo-color: #5f27cd; }
.logo:nth-child(6) { background: #222f3e; box-shadow: 0 0 40px 10px #222f3e55; --logo-color: #222f3e; }
.logo:nth-child(7) { background: #ee5253; box-shadow: 0 0 40px 10px #ee525355; --logo-color: #ee5253; }
.logo:nth-child(8) { background: #ff9f43; box-shadow: 0 0 40px 10px #ff9f4355; --logo-color: #ff9f43; }
.logo:nth-child(9) { background: #0abde3; box-shadow: 0 0 40px 10px #0abde355; --logo-color: #0abde3; }
.logo:nth-child(10) { background: #10ac84; box-shadow: 0 0 40px 10px #10ac8455; --logo-color: #10ac84; }
.logo:nth-child(11) { background: #341f97; box-shadow: 0 0 40px 10px #341f9755; --logo-color: #341f97; }
.logo:nth-child(12) { background: #576574; box-shadow: 0 0 40px 10px #57657455; --logo-color: #576574; }
.logo:nth-child(13) { background: #c8d6e5; color: #222f3e; box-shadow: 0 0 40px 10px #c8d6e555; --logo-color: #c8d6e5; }
.logo:nth-child(14) { background: #54a0ff; box-shadow: 0 0 40px 10px #54a0ff55; --logo-color: #54a0ff; }
.logo:nth-child(15) { background: #00d2d3; box-shadow: 0 0 40px 10px #00d2d355; --logo-color: #00d2d3; }
.logo:nth-child(16) { background: #b53471; box-shadow: 0 0 40px 10px #b5347155; --logo-color: #b53471; }
.logo:nth-child(17) { background: #f368e0; box-shadow: 0 0 40px 10px #f368e055; --logo-color: #f368e0; }
.logo:nth-child(18) { background: #00b894; color: #222f3e; box-shadow: 0 0 40px 10px #00b89455; --logo-color: #00b894; }
.logo:nth-child(19) { background: #ff9ff3; box-shadow: 0 0 40px 10px #ff9ff355; --logo-color: #ff9ff3; }
.logo:nth-child(20) { background: #fdcb6e; color: #222f3e; box-shadow: 0 0 40px 10px #fdcb6e55; --logo-color: #fdcb6e; }

/* 弹窗样式 */
.modal {
  display: none;
  position: fixed;
  z-index: 10;
  left: 0;
  top: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0,0,0,0.5);
  align-items: center;
  justify-content: center;
}
.modal-content {
  background: #101622;
  color: #fff;
  padding: 40px 28px;
  border-radius: 16px;
  min-width: 600px;
  min-height: 360px;
  max-width: 90vw;
  box-shadow: 0 8px 32px rgba(0,0,0,0.25);
  position: relative;
  text-align: center;
  font-size: 1.2rem;
}
.modal-content h2 {
  font-size: 1.8rem;
  margin-bottom: 20px;
  color: #fff;
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}
.modal-content p {
  font-size: 1.1rem;
  line-height: 1.6;
  color: rgba(255,255,255,0.9);
}
.close {
  position: absolute;
  right: 16px;
  top: 12px;
  font-size: 2rem;
  color: #888;
  cursor: pointer;
}
@media (max-width: 600px) {
  .site-header {
    height: 48px;
    padding: 0 10px;
    gap: 10px;
  }
  .site-logo {
    width: 32px;
    height: 32px;
  }
  .site-title {
    font-size: 1.1rem;
    letter-spacing: 1.5px;
  }
  .logo-container {
    padding-top: 44px;
  }
  .logo {
    min-width: 44px;
    min-height: 44px;
    max-width: 80px;
    max-height: 80px;
  }
  .modal-content {
    padding: 24px 16px;
    min-width: 280px;
    min-height: 200px;
    font-size: 1rem;
    margin: 0 16px;
  }
  .modal-content h2 {
    font-size: 1.4rem;
    margin-bottom: 16px;
  }
  .modal-content p {
    font-size: 1rem;
    line-height: 1.5;
  }
  .site-footer {
    font-size: 0.65rem;
    padding: 3px 0;
    letter-spacing: 0.5px;
    background: linear-gradient(to top, rgba(10, 16, 26, 0.5), transparent);
  }
  .site-footer .copyright {
    font-size: 0.65rem;
  }
  .site-footer .ai-generated {
    font-size: 0.6rem;
  }
}
.site-footer {
  position: fixed;
  left: 0;
  bottom: 0;
  width: 100vw;
  color: rgba(255, 255, 255, 0.6);
  text-align: center;
  font-size: 0.7rem;
  letter-spacing: 1px;
  padding: 4px 0;
  z-index: 30;
  box-shadow: none;
  user-select: none;
  background: linear-gradient(to top, rgba(10, 16, 26, 0.6), transparent);
  backdrop-filter: blur(4px);
  animation: footerFade 3s ease-in-out infinite alternate;
}

.site-footer .copyright {
  margin-bottom: 2px;
  font-size: 0.7rem;
}

.site-footer .ai-generated {
  font-size: 0.65rem;
  opacity: 0.8;
}

@keyframes footerFade {
  0% {
    opacity: 0.5;
    text-shadow: 0 0 8px rgba(162, 89, 255, 0.2);
  }
  100% {
    opacity: 0.7;
    text-shadow: 0 0 12px rgba(162, 89, 255, 0.3);
  }
}

.more-btn {
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 10px 24px;
  border-radius: 24px;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(4px);
  text-decoration: none;
  display: inline-block;
  white-space: nowrap;
  letter-spacing: 1px;
  font-weight: 500;
}

.more-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* 平板设备 */
@media (max-width: 1024px) {
  .site-header {
    padding: 0 32px;
  }
  
  .more-btn {
    padding: 8px 20px;
    font-size: 0.95rem;
  }
}

/* 手机设备 */
@media (max-width: 600px) {
  .site-header {
    top: 20px;
    height: 56px;
    padding: 0 16px;
  }
  
  .site-logo {
    width: 40px;
    height: 40px;
  }
  
  .site-title {
    font-size: 1.2rem;
    letter-spacing: 1px;
  }
  
  .more-btn {
    padding: 6px 16px;
    font-size: 0.85rem;
    border-radius: 20px;
  }
  .site-footer {
    font-size: 0.65rem;
    padding: 3px 0;
    letter-spacing: 0.5px;
    background: linear-gradient(to top, rgba(10, 16, 26, 0.5), transparent);
  }
  .site-footer .copyright {
    font-size: 0.65rem;
  }
  .site-footer .ai-generated {
    font-size: 0.6rem;
  }
}

/* 小屏手机 */
@media (max-width: 360px) {
  .site-header {
    padding: 0 12px;
  }
  
  .site-logo {
    width: 36px;
    height: 36px;
  }
  
  .site-title {
    font-size: 1.1rem;
  }
  
  .more-btn {
    padding: 5px 14px;
    font-size: 0.8rem;
    border-radius: 18px;
  }
}