/* 普推黑体（PUTUI）——本地内置，无需联网 */
@font-face {
  font-family: 'PUTUI';
  src: url('../fonts/PUTUI.woff2') format('woff2');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

:root {
  --brand: #1A6FE8;
  --brand-dark: #1253C4;
  --brand-light: #E8F1FF;
  --text: #1d2129;
  --sub: #86909c;
  --bg: #f2f3f5;
  --card: #ffffff;
  --line: #eef2f7;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
}

.wrap { max-width: 560px; margin: 0 auto; padding: 0 16px; }

/* ===== 页眉 ===== */
.site-header {
  background: linear-gradient(135deg, #2F7BEF, var(--brand-dark));
  color: #fff;
  padding: 18px 0 20px;
}
.site-header .brand { font-size: 22px; font-weight: 700; letter-spacing: 1px; }
.site-header .slogan { font-size: 12px; opacity: .85; margin-top: 4px; }

/* ===== 标题 ===== */
.page-title { margin: 20px 0 14px; }
.page-title h1 { margin: 0; font-size: 22px; font-weight: 700; }
.page-title p { margin: 6px 0 0; font-size: 12px; color: var(--sub); }

/* ===== 卡片 ===== */
.card {
  background: var(--card);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 14px;
  box-shadow: 0 2px 12px rgba(26, 111, 232, .06);
}

.label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 10px; }

.input {
  width: 100%;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0 14px;
  font-size: 16px;
  outline: none;
  background: #fafbfc;
  transition: border-color .2s, background .2s;
}
.input:focus { border-color: var(--brand); background: #fff; }
.input::placeholder { color: #c4c8ce; }

.hint { margin: 8px 0 0; font-size: 12px; color: var(--sub); }

/* ===== 预览 ===== */
.preview-wrapper {
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  background: #fafbfc;
}
#canvas { display: block; width: 100%; height: auto; }

.spec { margin: 10px 0 0; font-size: 12px; color: var(--sub); line-height: 1.6; }

/* ===== 按钮 ===== */
.btn-row { display: flex; gap: 10px; margin-top: 14px; flex-wrap: wrap; }
.btn {
  flex: 1;
  min-width: 96px;
  height: 44px;
  border-radius: 22px;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .2s, color .2s, border-color .2s;
  font-family: inherit;
}
.btn-solid { background: var(--brand); color: #fff; }
.btn-solid:hover { background: var(--brand-dark); }
.btn-outline { background: #fff; color: var(--brand); border-color: var(--brand); }
.btn-outline:hover { background: var(--brand-light); }
.btn-ghost { background: #f2f3f5; color: #4e5969; }
.btn-ghost:hover { background: #e5e6eb; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ===== 状态提示 ===== */
.status {
  margin: 0 0 14px;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 13px;
  background: var(--brand-light);
  color: var(--brand-dark);
  line-height: 1.5;
}
.status.err { background: #fff1f0; color: #d54941; }

/* ===== 说明 ===== */
.notice { margin: 4px 0 20px; font-size: 12px; color: var(--sub); line-height: 1.9; }
.notice p { margin: 0; }

/* ===== 页脚 ===== */
.site-footer {
  margin-top: 8px;
  padding: 16px 0 28px;
  text-align: center;
  font-size: 12px;
  color: var(--sub);
}

@media (max-width: 360px) {
  .btn { min-width: 0; font-size: 14px; padding: 0 8px; }
}