:root {
  --bg: #f7f8fa; --surface: #ffffff; --text: #1f2937; --muted: #6b7280;
  --border: #e5e7eb; --primary: #2563eb; --primary-dark: #1d4ed8;
  --radius: 12px; --shadow: 0 1px 3px rgba(16, 24, 40, .06), 0 8px 24px rgba(16, 24, 40, .04);
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); line-height: 1.2; letter-spacing: -.02em; }
h2 { font-size: 1.35rem; margin-top: 2.2rem; }

.site-header { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 1rem; padding: 1rem clamp(1rem, 5vw, 3rem); background: var(--surface);
  border-bottom: 1px solid var(--border); }
.brand { font-weight: 700; font-size: 1.15rem; color: var(--text); }
.site-header nav { display: flex; flex-wrap: wrap; gap: 1.1rem; align-items: center; font-size: .93rem; }
.site-header nav a { color: var(--muted); }
.site-header nav a:hover { color: var(--primary); }
.lang-switch { border: 1px solid var(--border); border-radius: 999px; padding: .15rem .7rem; }

main { max-width: 1040px; margin: 0 auto; padding: clamp(1.5rem, 4vw, 3rem) clamp(1rem, 5vw, 2rem) 4rem; }
.hero { padding: 2.5rem 0 1.5rem; }
.hero p { font-size: 1.1rem; color: var(--muted); max-width: 720px; }
.badges { display: flex; flex-wrap: wrap; gap: .6rem; margin: 1.4rem 0; }
.badges span { background: #eef2ff; color: #3730a3; border-radius: 999px; padding: .3rem .85rem; font-size: .85rem; }
.cta, .primary { display: inline-block; background: var(--primary); color: #fff; border: 0;
  border-radius: 8px; padding: .65rem 1.4rem; font-size: 1rem; cursor: pointer; }
.cta:hover, .primary:hover { background: var(--primary-dark); text-decoration: none; color: #fff; }
.primary:disabled { opacity: .55; cursor: wait; }

.tool-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 1rem; margin-top: 1.5rem; }
.tool-card { display: block; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.3rem; box-shadow: var(--shadow); color: var(--text); }
.tool-card:hover { border-color: var(--primary); text-decoration: none; transform: translateY(-2px); }
.tool-card h3 { margin: .5rem 0 .35rem; font-size: 1.05rem; }
.tool-card p { margin: 0; color: var(--muted); font-size: .9rem; }
.tool-icon { display: inline-flex; width: 30px; height: 30px; align-items: center; justify-content: center;
  background: #eef2ff; color: var(--primary); border-radius: 8px; font-weight: 700; font-size: .85rem; }

.crumbs { font-size: .88rem; color: var(--muted); margin-bottom: 1.2rem; }
.lede { color: var(--muted); font-size: 1.05rem; max-width: 720px; }
.tool-page { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: clamp(1.2rem, 3vw, 2rem); box-shadow: var(--shadow); }
.tool-page h1 { font-size: 1.9rem; margin-top: 0; }
.field { display: flex; flex-direction: column; gap: .35rem; margin: 1rem 0; font-size: .92rem; }
.field span { color: var(--muted); }
.field input[type=text], .field input[type=number], .field input[type=file],
.field input[type=password], .field select, .field textarea, .field input[type=color] {
  border: 1px solid var(--border); border-radius: 8px; padding: .55rem .7rem;
  font: inherit; background: #fff; color: var(--text); max-width: 100%; }
.field.checkbox { flex-direction: row; align-items: center; gap: .5rem; }
.field-row { display: flex; gap: 1rem; flex-wrap: wrap; }
.field-row .field { flex: 1 1 180px; }
.hint, .muted { color: var(--muted); font-size: .88rem; }
.status { margin-top: 1rem; min-height: 1.4rem; color: var(--primary); }
.result { margin-top: 1rem; padding: 1rem; border: 1px dashed var(--border); border-radius: 8px; background: #fafbff; }
.result img { max-width: 100%; max-height: 420px; border-radius: 6px; display: block; margin-bottom: .8rem; }
.download { display: inline-block; background: #059669; color: #fff; padding: .55rem 1.1rem; border-radius: 8px; }
.crop-box { max-width: 100%; margin: 1rem 0; }
.crop-box img { max-width: 100%; display: block; }
.qr-output { margin: 1rem 0; }
.qr-output img { border: 1px solid var(--border); border-radius: 6px; }
.faq details { border-bottom: 1px solid var(--border); padding: .7rem 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.related-links { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: .8rem; }
.related-links a { border: 1px solid var(--border); border-radius: 999px; padding: .3rem .85rem; font-size: .88rem; }
.prose { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: clamp(1.2rem, 3vw, 2rem); box-shadow: var(--shadow); }
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: .8rem; margin: 1.2rem 0; }
.kpi { background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: .9rem; }
.kpi b { display: block; font-size: 1.4rem; }
.kpi span { color: var(--muted); font-size: .82rem; }
#trend-svg { background: #fff; border: 1px solid var(--border); border-radius: 8px; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { text-align: left; padding: .5rem .6rem; border-bottom: 1px solid var(--border); }
.ad-slot { max-width: 1040px; margin: 0 auto 1rem; min-height: 90px; }

.site-footer { border-top: 1px solid var(--border); background: var(--surface);
  padding: 1.5rem clamp(1rem, 5vw, 3rem); color: var(--muted); font-size: .88rem; }
.site-footer a { color: var(--muted); }
.consent { position: fixed; bottom: 1rem; left: 50%; transform: translateX(-50%);
  width: min(520px, calc(100% - 2rem)); background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: 0 12px 40px rgba(16,24,40,.16); padding: 1.1rem 1.3rem; z-index: 50; }
.consent p { color: var(--muted); font-size: .88rem; margin: .4rem 0 .8rem; }
.consent label { margin-right: 1rem; font-size: .9rem; }
.consent button { margin-right: .5rem; margin-top: .7rem; border: 1px solid var(--border);
  background: #fff; border-radius: 8px; padding: .4rem .9rem; cursor: pointer; }
@media (max-width: 640px) {
  .site-header nav { gap: .7rem; font-size: .85rem; }
  .field-row { flex-direction: column; gap: 0; }
}

/* ---- 三期：广告位、审批队列、看板面板 ---- */
.ad-slot { position: relative; }
.ad-slot::before { content: attr(aria-label); position: absolute; top: -1.1rem;
  font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.ad-slot-result { margin-top: 1.4rem; }
.hero { font-weight: 600; }
.faq-note { color: var(--muted); font-size: .92rem; }
.internal-links ul { columns: 2; padding-left: 1.2rem; }
.internal-links a { color: var(--accent, #2563eb); }

.tabs { display: flex; gap: .4rem; flex-wrap: wrap; margin: 1rem 0; }
.tabs button { border: 1px solid var(--border); background: var(--surface);
  border-radius: 8px; padding: .45rem .9rem; cursor: pointer; font: inherit; }
.tabs button[aria-selected="true"] { background: #2563eb; color: #fff; border-color: #2563eb; }
.panel { display: none; }
.panel.active { display: block; }
.data-table { width: 100%; border-collapse: collapse; font-size: .9rem; margin: .8rem 0 1.6rem; }
.data-table th, .data-table td { border-bottom: 1px solid var(--border);
  padding: .5rem .6rem; text-align: left; vertical-align: top; }
.data-table th { color: var(--muted); font-weight: 600; }
.data-table td code { font-size: .82rem; }
.badge { display: inline-block; border-radius: 6px; padding: .1rem .45rem;
  font-size: .75rem; border: 1px solid var(--border); }
.badge-l2 { border-color: #b45309; color: #b45309; }
.badge-auto { border-color: #15803d; color: #15803d; }
.badge-alert { border-color: #b91c1c; color: #b91c1c; }
.row-actions { display: flex; gap: .35rem; flex-wrap: wrap; }
.row-actions button { border: 1px solid var(--border); background: #fff;
  border-radius: 6px; padding: .25rem .55rem; cursor: pointer; font-size: .82rem; }
.hint-box { background: var(--surface); border: 1px dashed var(--border);
  border-radius: var(--radius); padding: .8rem 1rem; font-size: .88rem; color: var(--muted); }
.sparkline { width: 100%; height: 160px; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius); }