/* base.css —— 原型骨架：变量 / 页面框架 / 导航 / 响应式
   类名统一前缀 p- ，避免与其它 demo 撞名。 */

:root {
  --p-bg: #f4f5f7;
  --p-panel: #ffffff;
  --p-ink: #1c1f23;
  --p-ink-2: #374151;
  --p-muted: #6b7280;
  --p-line: #e5e7eb;
  --p-line-2: #f1f2f4;
  --p-brand: #14532d;
  --p-brand-2: #166534;
  --p-accent: #b45309;
  --p-info: #1d4ed8;
  --p-warn: #92400e;
  --p-shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .08);
  --p-radius: 10px;
  --p-radius-sm: 6px;
  --p-nav-w: 218px;
  --p-font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", sans-serif;
  --p-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Courier New", monospace;
}

* { box-sizing: border-box; }

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

body {
  font-family: var(--p-font);
  font-size: 14px;
  line-height: 1.55;
  color: var(--p-ink);
  background: var(--p-bg);
  -webkit-text-size-adjust: 100%;
}

a { color: var(--p-info); text-decoration: none; }
a:hover { text-decoration: underline; }

code, .p-code { font-family: var(--p-mono); font-size: 12.5px; overflow-wrap: anywhere; }

/* ---------- 顶部常驻标注 ---------- */
.p-banner {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: #111827;
  color: #fcd34d;
  font-size: 12.5px;
  letter-spacing: .02em;
}
.p-banner__dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: #f59e0b; flex: none;
}
.p-banner__note { color: #d1d5db; margin-left: auto; }

/* ---------- 页头 ---------- */
.p-header {
  position: sticky;
  top: 29px;
  z-index: 30;
  background: var(--p-panel);
  border-bottom: 1px solid var(--p-line);
  padding: 8px 12px;
}
.p-header__row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.p-header__brand { font-weight: 700; font-size: 15px; color: var(--p-brand); white-space: nowrap; }
.p-header__sub { color: var(--p-muted); font-size: 12px; }
.p-header__spacer { flex: 1 1 auto; }

/* ---------- 角色切换 ---------- */
.p-roles { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.p-roles__label { color: var(--p-muted); font-size: 12px; }
.p-roles__btn {
  border: 1px solid var(--p-line);
  background: #fff;
  color: var(--p-ink-2);
  border-radius: 999px;
  padding: 4px 11px;
  font-size: 12.5px;
  cursor: pointer;
  font-family: inherit;
}
.p-roles__btn:hover { border-color: var(--p-brand-2); }
.p-roles__btn.is-active {
  background: var(--p-brand);
  border-color: var(--p-brand);
  color: #fff;
  font-weight: 600;
}
.p-roles__actor {
  border: 1px solid var(--p-line);
  background: #fff;
  border-radius: var(--p-radius-sm);
  padding: 4px 6px;
  font-size: 12.5px;
  max-width: 230px;
  font-family: inherit;
}

/* ---------- 骨架 ---------- */
.p-shell { display: block; }
.p-nav {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 8px 12px;
  background: var(--p-panel);
  border-bottom: 1px solid var(--p-line);
  -webkit-overflow-scrolling: touch;
}
.p-nav::-webkit-scrollbar { height: 0; }
.p-nav__group { display: flex; align-items: center; gap: 6px; }
.p-nav__grouptitle {
  color: var(--p-muted);
  font-size: 12px;
  white-space: nowrap;
  padding-right: 2px;
  display: none;
}
.p-nav__item {
  white-space: nowrap;
  border: 1px solid var(--p-line);
  border-radius: 999px;
  padding: 4px 11px;
  font-size: 12.5px;
  color: var(--p-ink-2);
  background: #fff;
  cursor: pointer;
  font-family: inherit;
}
.p-nav__item:hover { border-color: var(--p-brand-2); }
.p-nav__item.is-active { background: #e8f2ec; border-color: var(--p-brand-2); color: var(--p-brand); font-weight: 600; }
.p-nav__id { color: var(--p-muted); font-size: 11px; margin-right: 4px; }

.p-main { padding: 12px 12px 72px; max-width: 1180px; margin: 0 auto; }

/* ---------- 页标题 ---------- */
.p-pagehead { margin: 4px 0 12px; }
.p-pagehead__title { font-size: 17px; font-weight: 700; margin: 0; }
.p-pagehead__desc { color: var(--p-muted); font-size: 12.5px; margin: 4px 0 0; }
.p-pagehead__meta { color: var(--p-muted); font-size: 12px; margin-top: 4px; }

/* ---------- 现场页（手机优先） ---------- */
.p-body--mobile { background: #eef0f3; }
.p-body--mobile .p-main { max-width: 520px; }
.p-body--mobile .p-shell { max-width: 520px; margin: 0 auto; }
.p-body--mobile .p-header { position: static; }

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .p-shell { display: grid; grid-template-columns: var(--p-nav-w) 1fr; gap: 0; }
  .p-nav {
    flex-direction: column;
    align-items: stretch;
    overflow: visible;
    border-bottom: 0;
    border-right: 1px solid var(--p-line);
    padding: 12px 10px 80px;
    gap: 12px;
    height: calc(100vh - 60px);
    position: sticky;
    top: 29px;
  }
  .p-nav__group { flex-direction: column; align-items: stretch; gap: 4px; }
  .p-nav__grouptitle {
    display: block;
    padding: 6px 8px 2px;
    font-weight: 600;
    letter-spacing: .04em;
  }
  .p-nav__item { text-align: left; border-radius: var(--p-radius-sm); }
  .p-main { padding: 18px 20px 80px; }
  .p-pagehead__title { font-size: 20px; }
  .p-body--mobile .p-main { max-width: 520px; }
}

/* ---------- 工具类 ---------- */
.p-muted { color: var(--p-muted); }
.p-small { font-size: 12px; }
.p-strong { font-weight: 600; }
.p-right { text-align: right; }
.p-nowrap { white-space: nowrap; }
.p-mt8 { margin-top: 8px; }
.p-mt12 { margin-top: 12px; }
.p-mt16 { margin-top: 16px; }
.p-hr { height: 1px; background: var(--p-line); border: 0; margin: 14px 0; }
.p-hide { display: none !important; }

/* ── 扫码器（js/scanner.js）──────────────────────────────── */
.qr-mask{position:fixed;inset:0;background:rgba(15,23,42,.72);z-index:9999;
  display:flex;align-items:center;justify-content:center;padding:16px}
.qr-panel{background:#fff;border-radius:12px;width:min(420px,100%);overflow:hidden;
  box-shadow:0 20px 60px rgba(0,0,0,.35);display:flex;flex-direction:column}
.qr-head{display:flex;align-items:center;justify-content:space-between;
  padding:12px 14px;border-bottom:1px solid #e5e7eb;font-size:14px}
.qr-x{border:0;background:transparent;font-size:18px;line-height:1;cursor:pointer;
  color:#6b7280;padding:2px 6px;border-radius:6px}
.qr-x:hover{background:#f3f4f6;color:#111}
.qr-video-wrap{position:relative;background:#000;aspect-ratio:1/1;overflow:hidden}
.qr-video,.qr-canvas{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.qr-canvas{display:none}
.qr-frame{position:absolute;left:50%;top:50%;width:62%;aspect-ratio:1/1;
  transform:translate(-50%,-50%);border:3px solid rgba(255,255,255,.85);
  border-radius:10px;box-shadow:0 0 0 9999px rgba(0,0,0,.28)}
.qr-tip{position:absolute;left:0;right:0;bottom:10px;text-align:center;
  color:#fff;font-size:12.5px;text-shadow:0 1px 3px rgba(0,0,0,.8);padding:0 12px}
.qr-foot{display:flex;align-items:center;gap:10px;padding:10px 14px;
  border-top:1px solid #e5e7eb;font-size:12.5px}
.qr-filebtn{border:1px solid #d1d5db;border-radius:8px;padding:5px 10px;
  cursor:pointer;background:#f9fafb;white-space:nowrap}
.qr-filebtn:hover{background:#f3f4f6}
.qr-msg{color:#6b7280;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.qr-note{padding:0 14px 12px;font-size:11.5px;color:#9ca3af;line-height:1.6}
.qr-note b{color:#6b7280}
.p-btn--scan{display:inline-flex;align-items:center;gap:4px}