* {
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
}

/* Theme variables and spacing system */
:root {
  /* Theme colors */
  --text-color: #333333;
  --link-color: #2563eb;
  --button-bg: #e5e7eb;
  --button-text: #111827;
  --bg-color: #ffffff;

  /* Spacing scale (8px grid) */
  --space-4: 4px;
  --space-8: 8px;
  --space-12: 12px;
  --space-16: 16px;

  /* Size tokens */
  --size-120: 120px;
  --radius-6: 6px;
  --radius-8: 8px;
  --radius-12: 12px;
}

/* Utility classes */
.w-120 { width: var(--size-120); }
.gap-8 { gap: var(--space-8); }
.gap-12 { gap: var(--space-12); }

body {
  padding: 0;
  margin: 0;
  background-color: var(--bg-color); /* 由 CSS 变量驱动 */
}

#container {
  position: relative;
  height: 100vh;
}

#container .container {
  position: absolute;
  left: 50%;
  top: 50%;
  -webkit-transform: translate(-50%, -50%);
      -ms-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
}

.container {
  max-width: 500px;
  width: 100%;
  text-align: center;
  line-height: 1.4;
}

.logo { margin-bottom: 30px; }
.logo-img { max-width: 160px; height: auto; display: inline-block; }

.text { margin-bottom: 10px; color: var(--text-color); }

.container p {
  font-family: PingFang SC;
  font-size: 16px;
  color: var(--text-color);
  font-weight: 500;
  margin: 10px;
}

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

.dirlink {
  font-family: 'Noto Serif SC', serif;
  text-decoration: none;
  display: inline-block;
  padding: 5px 10px;
  font-size: 14px;
  font-weight: 500;
  border: 1.5px solid var(--button-border, var(--button-text));
  background: var(--button-bg);
  color: var(--button-text);
  border-radius: 4px;
  margin: 6px;
}

.buttons { margin-top: 8px; }

.dirlink .btn-icon {
  height: 16px;
  width: 16px;
  vertical-align: middle;
  margin-right: 6px;
}

/* Admin page styles (scoped) */
body.admin {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
  margin: 0;
  padding: 20px;
  background: #f5f5f7;
}
body.admin .wrap {
  max-width: 980px;
  margin: 0 auto;
  background: #ffffff;
  border-radius: var(--radius-12);
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
  padding: 20px 24px;
}
body.admin h1 { font-size: clamp(18px, 2.4vw, 22px); margin: 0 0 var(--space-12); color: #111; }
body.admin .notice { margin: 8px 0 16px; color: #0a7f2e; }
body.admin .error { margin: 8px 0 16px; color: #d44d44; }
body.admin form .row { display: flex; gap: var(--space-8); align-items: center; margin-bottom: var(--space-8); }
/* 登录页：登录按钮所在行纵向排列，按钮全宽，链接靠左 */
body.admin .row-login { flex-direction: column; align-items: stretch; }
body.admin .row-login .btn.primary { width: 100%; }
body.admin .row-login .link { align-self: flex-start; }
body.admin form label { width: 160px; color: #333; font-size: 13px; line-height: 1.4; }
body.admin form input[type=text],
body.admin form input[type=url],
body.admin form input[type=password],
body.admin form textarea,
body.admin form select {
  flex: 1; padding: 7px 8px; border: 1px solid #e5e7eb; border-radius: var(--radius-6); font-size: 13px; max-width: 100%; color: #111; background: #fff;
}
body.admin form textarea { min-height: 120px; font-family: Menlo, Monaco, Consolas, "Liberation Mono", monospace; }
body.admin .btn { display: inline-block; padding: 7px 12px; border-radius: var(--radius-8); border: 1px solid #e5e7eb; background: #f8fafc; color: #111; cursor: pointer; }
body.admin .btn.primary { background: #2563eb; color: #ffffff; border-color: #1d4ed8; }
body.admin a, body.admin .btn { text-decoration: none; }
body.admin a:hover, body.admin .btn:hover { filter: brightness(0.95); }
body.admin a:active, body.admin .btn:active { transform: translateY(0.5px); }
body.admin input:focus, body.admin select:focus, body.admin textarea:focus, body.admin .btn:focus {
  outline: 3px solid rgba(29, 78, 216, 0.35);
  outline-offset: 1px;
}
body.admin .footer { margin-top: 16px; display: flex; justify-content: space-between; align-items: center; }
body.admin .footer .link { margin-left: 10px; }
/* Footer primary action as full-width */
body.admin .footer > div:first-child { display: flex; flex-direction: column; gap: 8px; width: 100%; }
body.admin .footer .btn.primary { width: 100%; }
body.admin .footer .link { align-self: flex-start; margin-left: 0; }
body.admin .link { color: #3b82f6; text-decoration: none; }
body.admin .section { border: 1px solid #eef1f5; border-radius: 10px; padding: 12px; margin: 8px 0 16px; }
body.admin h2 { font-size: 15px; margin: 12px 0 8px; color: #111; }
body.admin .subtle { color: #888; font-size: 12px; }
body.admin .login-tip { color: #666; margin-top: 10px; }
/* 预览窗口居中与变量驱动样式（限定作用域） */
body.admin .preview {
  display: block;
  text-align: center;
  border: 1px solid #eef1f5;
  border-radius: var(--radius-12);
  padding: 16px;
  background: var(--bg-color);
}
body.admin .preview .logo { margin-bottom: var(--space-12); width: 100%; text-align: center; }
body.admin .preview .logo-img { max-width: 200px; height: auto; display: block; margin: 0 auto; }
body.admin .preview .text { color: var(--text-color); margin-bottom: 10px; }
body.admin .preview .link { color: var(--link-color); }
body.admin .preview .buttons { margin-top: 8px; }
body.admin .preview .dirlink { background: var(--button-bg); color: var(--button-text); border-color: var(--button-border, var(--button-text)); }
body.admin .form-row { display: grid; grid-template-columns: 160px 1fr; gap: 10px; align-items: center; margin-bottom: 10px; }
body.admin .field-group { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
body.admin .color-inline { display: flex; gap: 8px; align-items: center; }
body.admin .swatch { width: 20px; height: 20px; border-radius: 5px; border: 1px solid #e5e7eb; }
body.admin .btns-toolbar { display: flex; gap: 8px; align-items: center; margin-top: 8px; }
/* 新增按钮设为全宽显示 */
body.admin .btns-toolbar .btn { display: block; width: 100%; }
body.admin .btn-block { border: 1px solid #eee; border-radius: 8px; padding: 10px; margin: 12px 0; }
body.admin .btn-block-title { font-size: 13px; color: #555; margin-bottom: 6px; }
body.admin .input-s { width: 120px; flex: 0 0 120px; }
body.admin .input-m { width: 280px; flex: 0 0 280px; }
body.admin .input-color { width: 120px; flex: 0 0 120px; }
/* All selects fixed width on desktop */
body.admin form select { width: 120px; flex: 0 0 120px; }
@media (max-width: 640px) {
  body.admin { padding: 0; }
  body.admin .wrap { padding: 10px; border-radius: 0; }
  body.admin .section { padding: 10px; }
  body.admin .form-row { grid-template-columns: 1fr; }
  body.admin form label { width: auto; }
  body.admin .field-group { gap: 6px; }
  body.admin .input-s, body.admin .input-m, body.admin form select { width: 100%; max-width: 100%; }
  body.admin .input-color { width: 120px; }
  body.admin .color-inline { flex-direction: row; align-items: center; gap: 8px; width: 100%; }
  /* 上传相关：移动端两行显示（上为输入，下为上传按钮） */
  body.admin .field-group.file-inline { flex-direction: column; width: 100%; }
  body.admin .field-group.file-inline input[type=text],
  body.admin .field-group.file-inline input[type=url] { width: 100%; flex: 0 0 auto; }
  body.admin .field-group.file-inline input[type=file] { align-self: flex-start; }
  body.admin .swatch { width: 18px; height: 18px; }
  body.admin .btn-block { padding: 8px; }
  /* Mobile footer stacking for better layout */
  body.admin .footer { flex-direction: column; align-items: stretch; gap: 8px; }
  body.admin .footer > div:first-child { width: 100%; }
  /* Site content padding on narrow screens */
  .container { padding: 10px; }
}