/* ============================================================
   码工具箱 - 站点公共样式（各工具页共享）
   经典蓝白系：主色仅用于核心按钮/导航高亮，大面积中性灰
   ============================================================ */

:root {
  --primary:        #2563eb;
  --primary-hover:   #1d4ed8;
  --primary-soft:    #eff6ff;
  --primary-border:  #93c5fd;

  --bg:              #f5f7fa;
  --card:            #ffffff;
  --text:            #1f2937;
  --text-2:          #6b7280;
  --text-3:          #9ca3af;
  --border:          #e5e7eb;
  --border-2:        #d1d5db;

  --success:         #16a34a;
  --error:            #dc2626;
  --warn:             #d97706;

  --radius:          8px;
  --radius-sm:       6px;
  --shadow:          0 1px 2px rgba(15, 23, 42, .04), 0 1px 3px rgba(15, 23, 42, .06);
}

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

html, body { height: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- 顶部导航 ---------- */
.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
  padding-top: env(safe-area-inset-top);
}

.site-footer {
  padding-bottom: env(safe-area-inset-bottom);
}

.header-inner {
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: .5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo .logo-mark {
  display: inline-block;
  width: 26px;
  height: 26px;
  border-radius: 6px;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  line-height: 26px;
  text-align: center;
}

.nav { display: flex; gap: 4px; align-items: center; }

.nav a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-2);
  font-size: 14px;
  transition: all .15s;
}

.nav a:hover { color: var(--primary); background: var(--primary-soft); }
.nav a.active { color: var(--primary); background: var(--primary-soft); font-weight: 600; }

/* ---------- 主体 ---------- */
main { padding: 28px 0 48px; }

.tool-head { margin-bottom: 18px; }
.tool-head h1 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}
.tool-head .tool-desc { color: var(--text-2); font-size: 14px; }

/* ---------- 工具栏与按钮 ---------- */
.toolbar {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius) var(--radius) 0 0;
  border-bottom: none;
  padding: 12px 16px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.toolbar .group { display: flex; align-items: center; gap: 8px; }
.toolbar .spacer { flex: 1; }

.btn {
  height: 34px;
  padding: 0 14px;
  border: 1px solid var(--border-2);
  border-radius: var(--radius-sm);
  background: var(--card);
  color: var(--text);
  font-size: 13px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all .15s;
  white-space: nowrap;
  user-select: none;
}
.btn:hover { background: var(--primary-soft); border-color: var(--primary-border); color: var(--primary-hover); }
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  font-weight: 600;
}
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); color: #fff; }

.btn-ghost { border-color: transparent; }
.btn-ghost:hover { background: var(--primary-soft); }

.btn-sm { height: 30px; padding: 0 10px; font-size: 12px; }

.field-inline { display: inline-flex; align-items: center; gap: 6px; color: var(--text-2); font-size: 13px; }

/* 通用下拉/输入控件 */
.sel,
.indent-sel,
.input-text,
.input-dt {
  height: 34px;
  padding: 0 12px;
  border: 1px solid var(--border-2);
  border-radius: var(--radius-sm);
  background: var(--card);
  color: var(--text);
  font-size: 13px;
  transition: all .15s;
}
.sel:focus,
.indent-sel:focus,
.input-text:focus,
.input-dt:focus {
  outline: none;
  border-color: var(--primary-border);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, .12);
}

/* ---------- 状态栏 ---------- */
.status-bar {
  margin-top: 12px;
  padding: 9px 14px;
  border-radius: var(--radius-sm);
  background: var(--card);
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-2);
  display: flex;
  align-items: center;
  gap: 8px;
}
.status-bar .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--text-3); flex: none; }
.status-bar.ok { color: var(--success); border-color: #bbf7d0; background: #f0fdf4; }
.status-bar.ok .dot { background: var(--success); }
.status-bar.err { color: var(--error); border-color: #fecaca; background: #fef2f2; }
.status-bar.err .dot { background: var(--error); }
.status-bar.warn { color: var(--warn); border-color: #fde68a; background: #fffbeb; }
.status-bar.warn .dot { background: var(--warn); }

/* ---------- SEO 文案区 ---------- */
.seo-text {
  margin-top: 36px;
  max-width: 820px;
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.85;
}
.seo-text h2 { font-size: 18px; color: var(--text); margin: 24px 0 10px; font-weight: 600; }
.seo-text h2:first-child { margin-top: 0; }
.seo-text p { margin-bottom: 12px; }
.seo-text ul { padding-left: 20px; margin-bottom: 12px; }
.seo-text li { margin-bottom: 6px; }
.seo-text code, kbd {
  background: #f3f4f6; border: 1px solid var(--border); border-radius: 4px;
  padding: 1px 6px; font-size: 12px; font-family: "SF Mono", Menlo, Consolas, monospace;
}

/* ---------- 本地处理徽章 ---------- */
.local-badge {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 12px; color: #16a34a; background: #f0fdf4;
  border: 1px solid #bbf7d0; border-radius: 4px;
  padding: 2px 8px; margin: 0 0 12px 0; line-height: 1.5;
}
.local-badge svg { width: 13px; height: 13px; flex-shrink: 0; }
@media (max-width: 480px) {
  .local-badge { font-size: 11px; padding: 2px 6px; }
}

/* ---------- 页脚 ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--card);
  padding: 20px 0;
  color: var(--text-3);
  font-size: 13px;
  text-align: center;
}
.site-footer a { color: var(--text-2); }
.site-footer a:hover { color: var(--primary); }
.site-footer .footer-links { margin-bottom: 6px; }
.site-footer .footer-links a { margin: 0 8px; }
.site-footer .footer-icp { margin-top: 6px; font-size: 12px; display: flex; justify-content: center; align-items: center; flex-wrap: wrap; gap: 4px; }
.site-footer .footer-icp-sep { color: var(--text-3); }
.site-footer .gongan-link { display: inline-flex; align-items: center; gap: 4px; }
.site-footer .gongan-icon { width: 16px; height: 17px; flex-shrink: 0; vertical-align: middle; object-fit: contain; }

/* ---------- 响应式（通用） ---------- */
@media (max-width: 860px) {
  .nav .nav-extra { display: none; }
}

/* ---- 平板/手机 ---- */
@media (max-width: 768px) {
  .header-inner { height: 52px; }
  .logo { font-size: 16px; }
  .logo .logo-mark { width: 24px; height: 24px; line-height: 24px; font-size: 13px; }

  /* 导航横向滚动，不挤占布局 */
  .nav {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    flex: 1;
    margin-left: 12px;
    -webkit-mask: linear-gradient(90deg, #000 88%, transparent);
            mask: linear-gradient(90deg, #000 88%, transparent);
  }
  .nav::-webkit-scrollbar { display: none; }
  .nav a { white-space: nowrap; padding: 6px 10px; font-size: 13px; }

  .container { padding: 0 14px; }
  main { padding: 18px 0 36px; }

  .tool-head h1 { font-size: 20px; }
  .tool-head .tool-desc { font-size: 13px; }

  .footer-links { flex-wrap: wrap; }
  .footer-links a { margin: 0 6px; }
}

@media (max-width: 480px) {
  .tool-head h1 { font-size: 18px; }
  .logo span:last-child { display: none; }
}