/* ===== 鉴安 设计系统 v1 =====
 * 深色科技感门户，配色冷峻克制。
 */

:root {
  /* 背景：深空蓝多层 */
  --bg-0: #050816;        /* 最深 */
  --bg-1: #0a0e1a;        /* body 默认 */
  --bg-2: #111827;        /* 卡片底 */
  --bg-3: #1f2937;        /* 配置区 */

  /* 边框 / 分隔 */
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.18);

  /* 文字 */
  --text: #e5e7eb;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  /* 主色（AI 蓝青）+ 渐变 */
  --accent: #22d3ee;
  --accent-strong: #0891b2;
  --accent-soft: rgba(34, 211, 238, 0.16);
  --accent-glow: 0 0 24px rgba(34, 211, 238, 0.35);
  --accent-grad: linear-gradient(135deg, #22d3ee 0%, #6366f1 100%);

  /* 状态色 */
  --danger: #f87171;
  --danger-soft: rgba(248, 113, 113, 0.12);
  --danger-glow: 0 0 24px rgba(248, 113, 113, 0.30);
  --ok: #34d399;
  --ok-soft: rgba(52, 211, 153, 0.12);
  --ok-glow: 0 0 24px rgba(52, 211, 153, 0.30);
  --warn: #fbbf24;
  --warn-soft: rgba(251, 191, 36, 0.12);

  /* 玻璃面板 */
  --glass-bg: rgba(17, 24, 39, 0.72);
  --glass-blur: blur(14px);
  --glass-border: 1px solid rgba(255, 255, 255, 0.08);

  /* 阴影 */
  --shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.30);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.55);

  /* 字体 */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, "JetBrains Mono", SFMono-Regular, Menlo, Consolas, monospace;

  /* 圆角 */
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;
  --r-xl: 22px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg-1);
  color: var(--text);
  font: 14px/1.55 var(--font-sans);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(ellipse at 0% 0%, rgba(99, 102, 241, 0.10) 0%, transparent 50%),
    radial-gradient(ellipse at 100% 0%, rgba(34, 211, 238, 0.08) 0%, transparent 45%),
    linear-gradient(180deg, var(--bg-0) 0%, var(--bg-1) 100%);
  background-attachment: fixed;
}

/* 全局网格背景，给 hero/章节用 .grid-bg */
.grid-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

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

/* ===== 全局滚动条样式（统一深色科技感）===== */
/* WebKit (Chrome / Safari / Edge) */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.02);
  border-left: 1px solid var(--line);
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(34, 211, 238, 0.35) 0%, rgba(99, 102, 241, 0.35) 100%);
  border-radius: 6px;
  border: 2px solid transparent;
  background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, rgba(34, 211, 238, 0.65) 0%, rgba(99, 102, 241, 0.65) 100%);
  background-clip: padding-box;
  border: 2px solid transparent;
}
::-webkit-scrollbar-thumb:active {
  background: linear-gradient(180deg, var(--accent) 0%, #6366f1 100%);
  background-clip: padding-box;
  border: 2px solid transparent;
}
::-webkit-scrollbar-corner { background: var(--bg-1); }

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: rgba(34, 211, 238, 0.35) rgba(255, 255, 255, 0.02);
}

/* 浅色容器（如 textarea / canvas-wrap）滚动条用更浅的边框 */
textarea::-webkit-scrollbar-track,
.tbl-wrap::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.04);
  border-left: 1px solid var(--line);
}

/* ===== 顶部导航 ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px 28px;
  background: rgba(10, 14, 26, 0.80);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--line);
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 17px;
  letter-spacing: 0.5px;
}
.nav-brand .brand-mark {
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--accent-grad);
  color: #0a0e1a;
  font-weight: 900;
  font-size: 14px;
  box-shadow: var(--accent-glow);
}
.nav-brand .brand-en {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 1px;
}
.nav-menu {
  display: flex;
  gap: 4px;
  margin-left: auto;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.nav-menu a {
  padding: 8px 14px;
  border-radius: var(--r-sm);
  color: var(--text-muted);
  font-weight: 600;
  transition: all 0.15s;
  font-size: 13px;
}
.nav-menu a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}
.nav-menu a.active {
  color: var(--accent);
  background: var(--accent-soft);
}
.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-sm);
  color: var(--text);
  padding: 6px 10px;
  margin-left: auto;
  cursor: pointer;
}
.nav-toggle:hover { border-color: var(--accent); }

/* ===== 玻璃面板 ===== */
.panel {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-md);
}

/* ===== 页面 banner ===== */
.page-banner {
  position: relative;
  padding: 28px 28px 24px;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(34, 211, 238, 0.08) 0%, transparent 100%),
    var(--bg-1);
  overflow: hidden;
}
.page-banner h1 {
  margin: 0;
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.3px;
}
.page-banner h1 .mark {
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.page-banner p {
  margin: 8px 0 0;
  color: var(--text-muted);
  max-width: 880px;
}
.banner-badges {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 14px;
}
.badge-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
  font-size: 12px;
  font-family: var(--font-mono);
}
.badge-chip.accent {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}
.badge-chip .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 6px currentColor;
}
.badge-chip a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  margin-left: 2px;
}
.badge-chip a:hover { color: var(--text); }

/* ===== 表单元素 ===== */
input, select, textarea {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-sm);
  padding: 10px 12px;
  font: inherit;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(34, 211, 238, 0.04);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
select {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  padding-right: 36px;
  cursor: pointer;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 12px;
}
textarea {
  min-height: 80px;
  resize: vertical;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.55;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: var(--r-sm);
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  min-height: 38px;
}
.btn:hover { border-color: var(--accent); background: rgba(34, 211, 238, 0.05); color: var(--accent); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn.primary {
  background: var(--accent-grad);
  border-color: transparent;
  color: #0a0e1a;
  font-weight: 700;
  box-shadow: 0 6px 20px rgba(34, 211, 238, 0.30);
}
.btn.primary:hover { box-shadow: 0 10px 30px rgba(34, 211, 238, 0.45); color: #0a0e1a; transform: translateY(-1px); }
.btn.ghost { border-color: transparent; }

/* ===== 字段标签和提示 ===== */
.field { margin: 0 0 12px; }
.field-label {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 0 6px;
  color: var(--text);
  font-size: 13px;
  font-weight: 650;
}
.field-label .help-tip {
  display: inline-grid;
  place-items: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 800;
  cursor: help;
  position: relative;
}
.field-label .help-tip:hover { color: var(--accent); border-color: var(--accent); }
.field-label .help-tip::after {
  content: attr(data-tip);
  position: absolute;
  left: 0;
  bottom: calc(100% + 8px);
  width: max-content;
  max-width: min(320px, 70vw);
  padding: 10px 12px;
  border-radius: var(--r-sm);
  background: #0f172a;
  color: var(--text);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.55;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--line-strong);
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
  z-index: 200;
  white-space: pre-line;
  text-align: left;
  /* 防止越过右边界 */
  transform: translateX(0);
}
.field-label .help-tip:hover::after,
.field-label .help-tip:focus::after,
.field-label .help-tip.show::after {
  opacity: 1;
  visibility: visible;
}
.field-help {
  margin: 4px 0 0;
  color: var(--text-dim);
  font-size: 12px;
  line-height: 1.5;
}

/* ===== 配置分组 ===== */
.config-group {
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.config-group:first-of-type { padding-top: 0; }
.config-group:last-of-type { border-bottom: 0; padding-bottom: 0; }
.config-group-title {
  margin: 0 0 4px;
  font-size: 12px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 1px;
  text-transform: uppercase;
  font-family: var(--font-mono);
}
.config-group-desc {
  margin: 0 0 12px;
  color: var(--text-muted);
  font-size: 12.5px;
}
/* 移动端 accordion：点击 title 折叠/展开 */
.config-group-head {
  display: contents; /* 桌面默认不影响布局 */
}
@media (max-width: 760px) {
  .config-group-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    user-select: none;
    margin: 0 0 6px;
  }
  .config-group-head::after {
    content: "▾";
    color: var(--accent);
    font-size: 14px;
    transition: transform 0.2s;
  }
  .config-group.collapsed .config-group-head::after { transform: rotate(-90deg); }
  .config-group.collapsed .config-group-body { display: none; }
  .config-group.collapsed .config-group-desc { display: none; }
  .config-group-head .config-group-title { margin: 0; }
}

.row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.toolbar { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.hint { color: var(--text-muted); font-size: 12px; line-height: 1.55; margin-top: 6px; }

code {
  font-family: var(--font-mono);
  background: rgba(34, 211, 238, 0.08);
  color: var(--accent);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 12.5px;
}

/* ===== 判定徽章（巨大化）===== */
.verdict-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  border-radius: var(--r-md);
  font-size: 17px;
  font-weight: 800;
  border: 1px solid;
  background: rgba(255, 255, 255, 0.04);
}
.verdict-badge .v-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 12px currentColor;
}
.verdict-badge.bad { color: var(--danger); border-color: var(--danger); background: var(--danger-soft); box-shadow: var(--danger-glow); }
.verdict-badge.good { color: var(--ok); border-color: var(--ok); background: var(--ok-soft); box-shadow: var(--ok-glow); }
.verdict-badge.unknown { color: var(--warn); border-color: var(--warn); background: var(--warn-soft); }

/* 行内小徽章（用于检测列表里的状态） */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 700;
  border: 1px solid;
  background: rgba(255, 255, 255, 0.03);
}
.badge.bad { color: var(--danger); border-color: var(--danger); }
.badge.good { color: var(--ok); border-color: var(--ok); }
.badge.unknown { color: var(--warn); border-color: var(--warn); }

/* 原始 JSON 折叠区 */
.raw-json {
  display: none;
  margin-top: 8px;
  padding: 12px;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 11.5px;
  overflow: auto;
  max-height: 240px;
  white-space: pre-wrap;
  word-break: break-word;
}
.raw-json.open { display: block; }

/* 表格在移动端改成卡片化 */
@media (max-width: 760px) {
  .tbl-wrap.responsive table thead { display: none; }
  .tbl-wrap.responsive table,
  .tbl-wrap.responsive tbody,
  .tbl-wrap.responsive tr,
  .tbl-wrap.responsive td {
    display: block;
    width: 100%;
  }
  .tbl-wrap.responsive tr {
    padding: 10px 12px;
    border-bottom: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.02);
  }
  .tbl-wrap.responsive td {
    padding: 4px 0;
    border-bottom: 0;
    position: relative;
    padding-left: 90px;
    font-size: 12.5px;
  }
  .tbl-wrap.responsive td::before {
    content: attr(data-label);
    position: absolute;
    left: 0;
    top: 4px;
    color: var(--text-muted);
    font-size: 11px;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.3px;
  }
}

/* ===== 指标卡 ===== */
.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}
.stat {
  padding: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  min-width: 0;
}
.stat span {
  display: block;
  color: var(--text-muted);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-family: var(--font-mono);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.stat strong {
  display: block;
  margin-top: 4px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.3px;
  word-break: break-all;
  line-height: 1.25;
}
.stat.accent strong { color: var(--accent); }
.stat.bad strong { color: var(--danger); }
.stat.good strong { color: var(--ok); }

/* ===== 表格 ===== */
.tbl-wrap {
  margin-top: 12px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  max-height: 280px;
}
.tbl {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.tbl th, .tbl td {
  padding: 8px 12px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  word-break: break-word;
}
.tbl th {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.04);
  font-weight: 700;
  color: var(--text-muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.tbl tr:last-child td { border-bottom: 0; }
.tbl tr.warn td { background: var(--danger-soft); }

/* ===== 信息卡片 ===== */
.info-card {
  padding: 12px 14px;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: rgba(34, 211, 238, 0.04);
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.6;
}
.info-card strong { color: var(--accent); }

/* ===== 错误状态 ===== */
.error {
  color: var(--danger);
  background: var(--danger-soft);
  border: 1px solid var(--danger);
  border-radius: var(--r-sm);
  padding: 9px 11px;
}

/* ===== 加载态指示 ===== */
.loading {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
}
.loading::before {
  content: "";
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  border-top-color: transparent;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== 工具页统一布局 ===== */
.tool-layout {
  display: grid;
  grid-template-columns: minmax(360px, 400px) minmax(0, 1fr);
  gap: 16px;
  padding: 16px 28px 28px;
  max-width: 1680px;
  margin: 0 auto;
}
.tool-layout > .panel { padding: 18px; min-width: 0; }
.tool-layout .config-panel {
  position: sticky;
  top: 76px;
  max-height: calc(100vh - 92px);
  overflow: auto;
  display: flex;
  flex-direction: column;
  overscroll-behavior: contain;
}
.tool-layout .workspace-panel { min-width: 0; padding: 0; overflow: hidden; }
.workspace-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  padding: 12px 18px;
  border-bottom: 1px solid var(--line);
}
.workspace-toolbar strong { font-size: 14px; }

.canvas-wrap {
  display: grid;
  place-items: center;
  min-height: 480px;
  padding: 18px;
  overflow: auto;
  background:
    radial-gradient(ellipse at center, rgba(255, 255, 255, 0.02) 0%, transparent 70%),
    rgba(255, 255, 255, 0.02);
}
canvas {
  max-width: 100%;
  height: auto;
  background: #fff;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-md);
  cursor: crosshair;
  box-shadow: var(--shadow-sm);
  touch-action: manipulation; /* 移动端单击不放大、不阻塞滚动 */
}

.legend {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  padding: 10px 18px;
  border-top: 1px solid var(--line);
  color: var(--text-muted);
  font-size: 12px;
}
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend .swatch { display: inline-block; width: 14px; height: 14px; border-radius: 3px; }

.result-area {
  padding: 16px 18px;
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}
.result-row {
  display: grid;
  grid-template-columns: minmax(120px, max-content) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}
.result-row > div { min-width: 0; }

/* 预览图（roi 视觉版送给模型的图） */
.preview {
  padding: 14px 18px;
  border-top: 1px solid var(--line);
}
.preview h3 {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 800;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-family: var(--font-mono);
}
.preview img {
  display: block;
  max-width: 100%;
  max-height: 260px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-sm);
  background: #000;
}

/* ===== 响应式 ===== */

/* —— 紧凑桌面 —— */
@media (max-width: 1100px) {
  .tool-layout { grid-template-columns: 1fr; padding: 16px; gap: 12px; }
  .tool-layout .config-panel { position: static; max-height: none; }
  .tool-layout > .panel { padding: 16px; }
}

/* —— 平板 / 大手机横屏 —— */
@media (max-width: 880px) {
  .page-banner { padding: 22px 18px; }
  .page-banner h1 { font-size: 24px; }
  .banner-badges { gap: 6px; }
  .banner-badges .badge-chip { font-size: 11px; padding: 4px 8px; }
}

/* —— 标准手机 —— */
@media (max-width: 760px) {
  .nav { padding: 12px 16px; gap: 12px; flex-wrap: wrap; }
  .nav-brand { font-size: 15px; }
  .nav-brand .brand-mark { width: 26px; height: 26px; font-size: 12px; }
  .nav-brand .brand-en { display: none; }
  .nav-menu {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; padding: 8px; gap: 0;
    background: var(--bg-2); border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
  }
  .nav-menu.open { display: flex; }
  .nav-menu a { padding: 12px 14px; font-size: 14px; border-radius: var(--r-sm); }
  .nav-menu a.active { background: var(--accent-soft); }
  .nav-toggle { display: inline-flex; }

  .page-banner { padding: 18px 14px 16px; }
  .page-banner h1 { font-size: 22px; line-height: 1.25; }
  .page-banner p { font-size: 13.5px; }
  .banner-badges { margin-top: 10px; }

  .tool-layout { padding: 12px; gap: 10px; }
  .tool-layout > .panel { padding: 14px; border-radius: var(--r-md); }

  .config-group { padding: 12px 0; }
  .config-group-title { font-size: 11px; }
  .row { grid-template-columns: 1fr; gap: 8px; }

  .workspace-toolbar { padding: 10px 14px; flex-wrap: wrap; gap: 6px; }
  .workspace-toolbar strong { font-size: 13px; }

  .canvas-wrap { min-height: 280px; padding: 10px; }
  .legend { padding: 10px 14px; gap: 10px; font-size: 11.5px; }
  .legend .swatch { width: 12px; height: 12px; }

  .result-area { padding: 14px; }
  .result-row { grid-template-columns: 1fr; gap: 12px; }

  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; }
  .stat { padding: 9px 10px; }
  .stat strong { font-size: 18px; }

  .verdict-badge { font-size: 15px; padding: 10px 18px; }

  .toolbar { gap: 6px; }
  .toolbar .btn { flex: 1 1 auto; padding: 9px 10px; font-size: 13px; min-width: 0; }

  /* 表格在小屏改成卡片 */
  .tbl-wrap { max-height: 240px; }
  .tbl { font-size: 12px; }
  .tbl th, .tbl td { padding: 7px 9px; }

  /* tooltip 在移动端 hover 不靠谱：改成 click 切换 */
  .field-label .help-tip {
    width: 18px; height: 18px;
    /* 仍保留 hover，下面让 :focus-within 也起作用 */
  }
  .field-label .help-tip::after {
    max-width: 80vw;
  }

  .preview { padding: 12px; }
  .preview img { max-height: 200px; }

  /* 下载结果按钮在移动端独占一行 */
  .toolbar #downloadBtn { flex: 1 1 100%; }
}

/* —— 小手机 / iPhone SE 等 —— */
@media (max-width: 420px) {
  .page-banner h1 { font-size: 20px; }
  .verdict-badge { font-size: 13px; padding: 8px 14px; }
  .verdict-badge .v-dot { width: 6px; height: 6px; }
  .banner-badges .badge-chip { font-size: 10.5px; padding: 3px 7px; }
  .stat span { font-size: 10.5px; }
  .stat strong { font-size: 16px; }
  .tbl th, .tbl td { padding: 5px 7px; font-size: 11.5px; }
}

/* —— 触屏设备：input 字号至少 16px 防 iOS Safari 自动放大 —— */
@media (hover: none) and (pointer: coarse) {
  input, select, textarea { font-size: 16px; }
  textarea { font-size: 13px; } /* monospace 区域不放大，仍要保证小 */
  /* 触屏不能 hover，help-tip 改成 active 显示 */
  .field-label .help-tip:active::after,
  .field-label .help-tip:focus::after { opacity: 1; visibility: visible; }
}