:root {
  --primary-color: #6366f1; /* 主色调：靛蓝色 */
  --secondary-color: #8b5cf6; /* 辅助色：紫色 */
  --accent-color: #ec4899; /* 强调色：粉色 */
  --glass-effect: rgba(255, 255, 255, 0.1);
  --glass-effect-dark: rgba(0, 0, 0, 0.2);
  --gradient: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  --gradient-accent: linear-gradient(135deg, var(--primary-color), var(--accent-color));
}

.giscus {
  margin: 0 auto;
  border-radius: 20px;
  max-width: 95%;
  overflow: hidden;
  position: relative;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
  background: white;
  transition: all 0.3s ease;
  padding: 16px;
}

.giscus::before {
  content: '';
  position: absolute;
  top: -50px;
  right: -50px;
  width: 150px;
  height: 150px;
  background: var(--gradient);
  border-radius: 50%;
  filter: blur(30px);
  opacity: 0.5;
  z-index: 0;
}

.giscus::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -50px;
  width: 200px;
  height: 200px;
  background: var(--gradient-accent);
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.4;
  z-index: 0;
}

.giscus-header {
  padding: 20px 28px;
  background: var(--gradient);
  color: white;
  border-bottom: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 1;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.2);
}

.giscus-title {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
}

.giscus-title::before {
  content: '';
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: white;
  margin-right: 12px;
  animation: pulse 2s infinite;
}

.giscus-meta {
  font-size: 14px;
  opacity: 0.8;
}

.giscus-comments {
  padding: 30px;
  max-height: 600px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(99, 102, 241, 0.3) transparent;
  position: relative;
  z-index: 1;
  background: rgba(255, 255, 255, 0.95);
}

.giscus-comments::-webkit-scrollbar {
  width: 8px;
}

.giscus-comments::-webkit-scrollbar-track {
  background: transparent;
}

.giscus-comments::-webkit-scrollbar-thumb {
  background-color: rgba(99, 102, 241, 0.3);
  border-radius: 20px;
  transition: background-color 0.3s;
}

.giscus-comments::-webkit-scrollbar-thumb:hover {
  background-color: rgba(99, 102, 241, 0.5);
}

.giscus-comment {
  margin-bottom: 24px;
  display: flex;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  position: relative;
  opacity: 0;
  transform: translateY(10px);
  animation: fadeIn 0.5s forwards;
}

.giscus-comment:hover {
  transform: translateY(-2px) scale(1.01);
}

.giscus-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  overflow: hidden;
  margin-right: 16px;
  flex-shrink: 0;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
  border: 2px solid white;
  position: relative;
  z-index: 1;
}

.giscus-avatar::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 50%;
  background: var(--gradient);
  z-index: -1;
  opacity: 0;
  transition: opacity 0.3s;
}

.giscus-comment:hover .giscus-avatar::before {
  opacity: 1;
}

.giscus-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.giscus-comment-body {
  background: white;
  padding: 16px 20px;
  border-radius: 18px;
  border-bottom-left-radius: 0;
  max-width: 85%;
  position: relative;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.3);
  transition: all 0.3s;
}

.giscus-comment-body::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: -10px;
  width: 20px;
  height: 20px;
  background: white;
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
  transition: all 0.3s;
}

.giscus-comment:hover .giscus-comment-body {
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.1);
}

.giscus-comment-author {
  font-weight: 600;
  color: #212529;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
}

.giscus-comment-author::after {
  content: '在线';
  margin-left: 8px;
  font-size: 11px;
  color: #34d399;
  display: flex;
  align-items: center;
}

.giscus-comment-author::after::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #34d399;
  margin-right: 4px;
}

.giscus-comment-content {
  color: #495057;
  line-height: 1.6;
  word-wrap: break-word;
  font-size: 15px;
}

.giscus-comment-meta {
  margin-top: 8px;
  font-size: 12px;
  color: #adb5bd;
  display: flex;
  align-items: center;
}

.giscus-comment-meta span {
  margin-right: 12px;
  display: flex;
  align-items: center;
}

.giscus-comment-meta svg {
  margin-right: 4px;
  width: 14px;
  height: 14px;
  fill: currentColor;
}

.giscus-comment.is-author {
  flex-direction: row-reverse;
}

.giscus-comment.is-author .giscus-avatar {
  margin-right: 0;
  margin-left: 16px;
}

.giscus-comment.is-author .giscus-comment-body {
  background: var(--gradient);
  color: white;
  border-bottom-left-radius: 18px;
  border-bottom-right-radius: 0;
  box-shadow: 0 10px 25px rgba(99, 102, 241, 0.2);
}

.giscus-comment.is-author .giscus-comment-body::before {
  left: auto;
  right: -10px;
  background: var(--secondary-color);
  clip-path: polygon(100% 100%, 0 0, 0 100%);
}

.giscus-comment.is-author .giscus-comment-author {
  color: white;
  justify-content: flex-end;
}

.giscus-comment.is-author .giscus-comment-author::after {
  content: '我';
  color: rgba(255, 255, 255, 0.8);
}

.giscus-comment.is-author .giscus-comment-author::after::before {
  display: none;
}

.giscus-comment.is-author .giscus-comment-content {
  color: white;
}

.giscus-comment.is-author .giscus-comment-meta {
  justify-content: flex-end;
}

.giscus-input {
  padding: 20px 28px;
  border-top: none;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  position: relative;
  z-index: 1;
  box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.03);
}

.giscus-input-wrapper {
  position: relative;
}

.giscus-input textarea {
  width: 100%;
  padding: 16px 50px 16px 20px;
  border: none;
  border-radius: 24px;
  resize: none;
  font-size: 15px;
  line-height: 1.6;
  transition: all 0.3s;
  outline: none;
  min-height: 60px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.07);
  background: white;
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.giscus-input textarea:focus {
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.15);
  border-color: rgba(99, 102, 241, 0.3);
}

.giscus-input-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 16px;
}

.giscus-buttons {
  display: flex;
  gap: 12px;
}

.giscus-button {
  padding: 10px 24px;
  border-radius: 20px;
  border: none;
  font-size: 15px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.giscus-button:hover {
  transform: translateY(-2px);
}

.giscus-button:active {
  transform: translateY(1px);
}

.giscus-button-primary {
  background: var(--gradient);
  color: white;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.giscus-button-primary:hover {
  box-shadow: 0 6px 25px rgba(99, 102, 241, 0.4);
}

.giscus-button-secondary {
  background: rgba(241, 243, 245, 0.8);
  color: #495057;
}

.giscus-button-secondary:hover {
  background: rgba(233, 236, 239, 0.9);
}

.giscus-button svg {
  margin-right: 8px;
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.giscus-send-button {
  position: absolute;
  right: 12px;
  bottom: 12px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  cursor: pointer;
  transition: all 0.3s;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.2);
  opacity: 0.8;
}

.giscus-send-button:hover {
  transform: scale(1.1);
  opacity: 1;
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.3);
}

.giscus-send-button svg {
  width: 20px;
  height: 20px;
  fill: white;
}

@keyframes fadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.7);
  }
  
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 10px rgba(255, 255, 255, 0);
  }
  
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(255, 255, 255, 0);
  }
}