/* 字体加载 */
@font-face {
  font-family: 'Source Han Sans SC';
  font-weight: 200;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/ZaneL1u/TTF-Min@main/dist/ttf-思源黑体/SourceHanSansSC-ExtraLight.ttf') format('truetype');
}
@font-face {
  font-family: 'Source Han Sans SC';
  font-weight: 300;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/ZaneL1u/TTF-Min@main/dist/ttf-思源黑体/SourceHanSansSC-Light.ttf') format('truetype');
}
@font-face {
  font-family: 'Source Han Sans SC';
  font-weight: 350;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/ZaneL1u/TTF-Min@main/dist/ttf-思源黑体/SourceHanSansSC-Normal.ttf') format('truetype');
}
@font-face {
  font-family: 'Source Han Sans SC';
  font-weight: 400;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/ZaneL1u/TTF-Min@main/dist/ttf-思源黑体/SourceHanSansSC-Regular.ttf') format('truetype');
}
@font-face {
  font-family: 'Source Han Sans SC';
  font-weight: 500;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/ZaneL1u/TTF-Min@main/dist/ttf-思源黑体/SourceHanSansSC-Medium.ttf') format('truetype');
}
@font-face {
  font-family: 'Source Han Sans SC';
  font-weight: 700;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/ZaneL1u/TTF-Min@main/dist/ttf-思源黑体/SourceHanSansSC-Bold.ttf') format('truetype');
}
@font-face {
  font-family: 'Source Han Sans SC';
  font-weight: 900;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/ZaneL1u/TTF-Min@main/dist/ttf-思源黑体/SourceHanSansSC-Heavy.ttf') format('truetype');
}

/* 思源宋体 */
@font-face {
  font-family: 'Source Han Serif CN';
  font-weight: 200;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/ZaneL1u/TTF-Min@main/dist/otf-思源宋体/SourceHanSerifCN-ExtraLight.otf') format('opentype');
}
@font-face {
  font-family: 'Source Han Serif CN';
  font-weight: 300;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/ZaneL1u/TTF-Min@main/dist/otf-思源宋体/SourceHanSerifCN-Light.otf') format('opentype');
}
@font-face {
  font-family: 'Source Han Serif CN';
  font-weight: 400;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/ZaneL1u/TTF-Min@main/dist/otf-思源宋体/SourceHanSerifCN-Regular.otf') format('opentype');
}
@font-face {
  font-family: 'Source Han Serif CN';
  font-weight: 500;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/ZaneL1u/TTF-Min@main/dist/otf-思源宋体/SourceHanSerifCN-Medium.otf') format('opentype');
}
@font-face {
  font-family: 'Source Han Serif CN';
  font-weight: 600;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/ZaneL1u/TTF-Min@main/dist/otf-思源宋体/SourceHanSerifCN-SemiBold.otf') format('opentype');
}
@font-face {
  font-family: 'Source Han Serif CN';
  font-weight: 700;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/ZaneL1u/TTF-Min@main/dist/otf-思源宋体/SourceHanSerifCN-Bold.otf') format('opentype');
}
@font-face {
  font-family: 'Source Han Serif CN';
  font-weight: 900;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/ZaneL1u/TTF-Min@main/dist/otf-思源宋体/SourceHanSerifCN-Heavy.otf') format('opentype');
}

/* 阿里巴巴普惠体 */
@font-face {
  font-family: 'Alibaba PuHuiTi 3';
  font-weight: 300;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/ZaneL1u/TTF-Min@main/dist/ttf%2Botf阿里巴巴普惠体/AlibabaPuHuiTi-3-45-Light.ttf') format('truetype');
}
@font-face {
  font-family: 'Alibaba PuHuiTi 3';
  font-weight: 400;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/ZaneL1u/TTF-Min@main/dist/ttf%2Botf阿里巴巴普惠体/AlibabaPuHuiTi-3-55-Regular.ttf') format('truetype');
}
@font-face {
  font-family: 'Alibaba PuHuiTi 3';
  font-weight: 500;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/ZaneL1u/TTF-Min@main/dist/ttf%2Botf阿里巴巴普惠体/AlibabaPuHuiTi-3-65-Medium.ttf') format('truetype');
}
@font-face {
  font-family: 'Alibaba PuHuiTi 3';
  font-weight: 700;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/ZaneL1u/TTF-Min@main/dist/ttf%2Botf阿里巴巴普惠体/AlibabaPuHuiTi-3-85-Bold.ttf') format('truetype');
}
@font-face {
  font-family: 'Alibaba PuHuiTi 3';
  font-weight: 900;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/ZaneL1u/TTF-Min@main/dist/ttf%2Botf阿里巴巴普惠体/AlibabaPuHuiTi-3-115-Black.ttf') format('truetype');
}

/* 更纱黑体 */
@font-face {
  font-family: 'Sarasa Gothic SC';
  font-weight: 200;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/ZaneL1u/TTF-Min@main/dist/ttf-更纱黑体/SarasaGothicSC-ExtraLight.ttf') format('truetype');
}
@font-face {
  font-family: 'Sarasa Gothic SC';
  font-weight: 300;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/ZaneL1u/TTF-Min@main/dist/ttf-更纱黑体/SarasaGothicSC-Light.ttf') format('truetype');
}
@font-face {
  font-family: 'Sarasa Gothic SC';
  font-weight: 400;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/ZaneL1u/TTF-Min@main/dist/ttf-更纱黑体/SarasaGothicSC-Regular.ttf') format('truetype');
}
@font-face {
  font-family: 'Sarasa Gothic SC';
  font-weight: 600;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/ZaneL1u/TTF-Min@main/dist/ttf-更纱黑体/SarasaGothicSC-SemiBold.ttf') format('truetype');
}
@font-face {
  font-family: 'Sarasa Gothic SC';
  font-weight: 700;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/ZaneL1u/TTF-Min@main/dist/ttf-更纱黑体/SarasaGothicSC-Bold.ttf') format('truetype');
}
@font-face {
  font-family: 'Sarasa Gothic SC';
  font-weight: 400;
  font-style: italic;
  font-display: swap;
  src: url('https://cdn.jsdelivr.net/gh/ZaneL1u/TTF-Min@main/dist/ttf-更纱黑体/SarasaGothicSC-Italic.ttf') format('truetype');
}

/* 基础样式 */
:root {
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --bg-color: #f8fafc;
  --card-bg: #ffffff;
  --text-color: #1e293b;
  --text-secondary: #64748b;
  --border-color: #e2e8f0;
  --code-bg: #1e293b;
  --success-color: #22c55e;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 2rem;
}

/* Header */
header {
  text-align: center;
  margin-bottom: 2rem;
  padding: 2rem 0;
}

header h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, var(--primary-color), #7c3aed);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.badges {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
}

.badges img {
  height: 20px;
}

/* Tabs */
.font-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.tab-btn {
  padding: 0.75rem 1.5rem;
  border: 2px solid var(--border-color);
  background: var(--card-bg);
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  transition: all 0.2s ease;
  color: var(--text-color);
}

.tab-btn:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.tab-btn.active {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
}

/* Font Sections */
.font-section {
  display: none;
  animation: fadeIn 0.3s ease;
}

.font-section.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.font-header {
  background: var(--card-bg);
  padding: 1.5rem;
  border-radius: 12px;
  margin-bottom: 1.5rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.font-header h2 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.font-meta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.font-meta span {
  font-size: 0.875rem;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
}

.license {
  background: #dbeafe;
  color: #1e40af;
}

.size {
  background: #dcfce7;
  color: #166534;
}

/* Preview Section */
.preview-section {
  background: var(--card-bg);
  padding: 1.5rem;
  border-radius: 12px;
  margin-bottom: 1.5rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.preview-section h3 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.preview-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.preview-controls label {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.preview-input {
  flex: 1;
  min-width: 200px;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 1rem;
}

.preview-input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

input[type="range"] {
  width: 120px;
  cursor: pointer;
}

.weight-preview {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.weight-item {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border-color);
}

.weight-item:last-child {
  border-bottom: none;
}

.weight-label {
  min-width: 120px;
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-family: monospace;
}

.weight-text {
  font-size: 32px;
  line-height: 1.4;
}

.sarasa-italic {
  font-style: italic;
}

/* Code Section */
.code-section {
  background: var(--card-bg);
  padding: 1.5rem;
  border-radius: 12px;
  margin-bottom: 1.5rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.code-section h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.code-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.code-block {
  position: relative;
  background: var(--code-bg);
  border-radius: 8px;
  overflow: hidden;
}

.code-block pre {
  padding: 1.5rem;
  overflow-x: auto;
  margin: 0;
}

.code-block code {
  font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
  font-size: 0.8rem;
  line-height: 1.6;
  color: #e2e8f0;
}

.copy-btn {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  border-radius: 6px;
  color: #e2e8f0;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.copy-btn:hover {
  background: rgba(255, 255, 255, 0.2);
}

.copy-btn.copied {
  background: var(--success-color);
  color: white;
}

/* Footer */
footer {
  text-align: center;
  padding: 2rem 0;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

footer a {
  color: var(--primary-color);
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

.copyright {
  margin-top: 0.5rem;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--text-color);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-size: 0.875rem;
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 1000;
}

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

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 1rem;
  }

  header h1 {
    font-size: 1.75rem;
  }

  .tab-btn {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
  }

  .weight-label {
    min-width: 80px;
    font-size: 0.65rem;
  }

  .weight-text {
    font-size: 24px;
  }

  .preview-controls {
    flex-direction: column;
    align-items: stretch;
  }

  .preview-input {
    width: 100%;
  }

  .code-block pre {
    padding: 1rem;
  }

  .code-block code {
    font-size: 0.7rem;
  }
}