:root {
    --primary: #5f8d6b; --primary-dark: #4a7557;
    --bg: #f0efe9; --card: #fafaf5; --card-sec: #f5f4ef;
    --border: rgba(0,0,0,.06); --text: #2c2c2c; --text-sec: #6b6b6b;
    --text-ter: #999; --hair: rgba(0,0,0,.08); --input: #fff;
    --accent: #c0392b; --success: #34c759; --muted: #6b6b6b; --danger: #c0392b;
    --shadow: 0 18px 50px rgba(0,0,0,.07); --ease: cubic-bezier(.25,.1,.25,1);
  }
  * { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
  html, body { margin: 0; padding: 0; }
  body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Microsoft YaHei", "SimSun", Arial, sans-serif;
    line-height: 1.6; -webkit-font-smoothing: antialiased; background: var(--bg); color: var(--text); min-height: 100vh;
  }
  .app { max-width: 520px; margin: 0 auto; padding: 0 0 24px; }
  body.desktop .app { max-width: 880px; }
  .hero { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; padding: 36px 20px 30px; box-shadow: var(--shadow); display: flex; align-items: center; gap: 16px; }
  .hero-logo { width: 76px; height: 76px; background: transparent; border-radius: 50%; padding: 0; box-shadow: none; filter: invert(1); object-fit: contain; flex: none; display: block; }
  .hero-text { min-width: 0; }
  .hero-text h1 { margin: 0; font-size: 20px; font-weight: 700; letter-spacing: .5px; }
  .hero-text p { margin: 5px 0 0; font-size: 12px; opacity: .9; }
  .hero-text .sub { font-size: 11px; opacity: .78; margin-top: 3px; letter-spacing: .3px; }
  .tabs { display: flex; margin: 16px 16px 0; background: var(--card); border-radius: 14px; padding: 4px; box-shadow: 0 2px 8px rgba(0,0,0,.04); }
  body.mobile .tabs { display: none !important; }
  body.mobile #view-admin { display: none !important; }
  .tabs button { flex: 1; border: 0; background: transparent; color: var(--text-sec); font-size: 14px; padding: 9px 0; border-radius: 10px; font-weight: 600; cursor: pointer; transition: all .22s var(--ease); font-family: inherit; }
  .tabs button.active { background: var(--primary); color: #fff; box-shadow: 0 4px 12px rgba(95,141,107,.25); }
  .view { display: none; padding: 16px; }
  .view.active { display: block; }
  .card { background: var(--card); border-radius: 24px; padding: 22px; box-shadow: var(--shadow); margin-bottom: 18px; }
  .field { margin-bottom: 18px; }
  .field label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 8px; }
  .field label .req { color: var(--accent); margin-left: 2px; }
  .field input, .field textarea, .field select { width: 100%; border: 1px solid var(--border); border-radius: 14px; padding: 13px 16px; font-size: 15px; background: var(--input); color: var(--text); outline: none; transition: box-shadow .2s var(--ease), border-color .2s var(--ease); font-family: inherit; }
  .field input:focus, .field textarea:focus, .field select:focus { box-shadow: 0 0 0 4px rgba(95,141,107,.12); border-color: rgba(95,141,107,.35); }
  .field input[readonly] { background: var(--card-sec); color: var(--text-sec); cursor: not-allowed; border-style: dashed; }
  .field textarea { resize: vertical; min-height: 88px; }
  .pdf-hint { font-size: 12px; color: var(--text-ter); margin-top: 8px; }
  .att-list { margin-top: 10px; display: flex; flex-direction: column; gap: 8px; }
  .att-item { display: flex; align-items: center; gap: 10px; background: var(--card-sec); border-radius: 12px; padding: 10px 12px; }
  .att-ic { font-size: 18px; flex: none; }
  .att-nm { flex: 1; min-width: 0; font-size: 13px; font-weight: 600; color: var(--text); word-break: break-all; }
  .att-sz { font-size: 12px; color: var(--text-ter); flex: none; }
  .att-del { font-size: 12px; color: var(--accent); background: none; border: 0; cursor: pointer; padding: 4px 8px; border-radius: 8px; flex: none; }
  .att-del:hover { background: rgba(192,57,43,.1); }
  .att-row { display: flex; align-items: center; gap: 8px; padding: 5px 0; border-top: 1px dashed var(--border); flex-wrap: wrap; }
  .att-row .att-ic { font-size: 16px; flex: none; }
  .att-row .att-nm { font-size: 13px; color: var(--text); word-break: break-all; flex: 1; min-width: 80px; }
  .att-row .att-st { font-size: 12px; color: var(--text-ter); }
  .pdf-detail { margin-top: 6px; }
  .pdf-link { color: var(--primary); cursor: pointer; font-size: 12px; font-weight: 600; text-decoration: none; margin-left: 4px; }
  .pdf-link:hover { text-decoration: underline; }
  .pdf-link.del { color: var(--accent); }
  .seal-group { display: flex; flex-wrap: wrap; gap: 10px; }
  .seal-group .chip { border: 1px solid var(--border); background: var(--input); color: var(--text-sec); padding: 10px 18px; border-radius: 26px; font-size: 14px; font-weight: 600; cursor: pointer; font-family: inherit; line-height: 1.2; transition: all .2s var(--ease); }
  .seal-group .chip:hover { border-color: rgba(95,141,107,.35); color: var(--primary); }
  .seal-group .chip.active { background: var(--primary); color: #fff; border-color: var(--primary); box-shadow: 0 4px 12px rgba(95,141,107,.25); }
  .sig-wrap { position: relative; }
  .sig-box { width: 100%; height: 180px; border: 1.5px dashed rgba(95,141,107,.4); border-radius: 18px; background: #fff; touch-action: none; display: block; cursor: crosshair; box-shadow: 0 8px 30px rgba(0,0,0,.04); }
  .sig-hint { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; color: var(--text-ter); font-size: 14px; pointer-events: none; }
  .sig-bar { display: flex; justify-content: space-between; align-items: center; margin-top: 10px; }
  .sig-bar .tip { font-size: 12px; color: var(--text-ter); }
  .btn { border: 0; border-radius: 26px; padding: 13px 18px; font-size: 15px; font-weight: 600; cursor: pointer; transition: all .22s var(--ease); width: 100%; font-family: inherit; line-height: 1.2; }
  .btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 12px rgba(95,141,107,.18); }
  .btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 8px 20px rgba(95,141,107,.25); }
  .btn-primary:active { transform: translateY(0); }
  .btn-ghost { background: rgba(95,141,107,.1); color: var(--primary); }
  .btn-ghost:hover { background: rgba(95,141,107,.18); }
  .btn-danger { background: rgba(192,57,43,.08); color: var(--accent); }
  .btn-danger:hover { background: rgba(192,57,43,.15); }
  .btn-row { display: flex; gap: 10px; }
  .toast { position: fixed; left: 50%; bottom: 32px; transform: translateX(-50%) translateY(90px); background: rgba(17,24,39,.92); color: #fff; padding: 11px 22px; border-radius: 999px; font-size: 14px; z-index: 50; opacity: 0; transition: all .3s var(--ease); pointer-events: none; max-width: 88vw; text-align: center; }
  .toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }
  .mode-badge { display: flex; align-items: center; gap: 8px; padding: 10px 14px; background: var(--card); border-radius: 14px; font-size: 12px; color: var(--text-sec); margin-bottom: 12px; box-shadow: 0 1px 4px rgba(0,0,0,.04); }
  .mode-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: #cbd5e1; flex: none; }
  .mode-badge .dot.ok { background: #34c759; box-shadow: 0 0 0 3px rgba(52,199,89,.18); }
  .mode-badge .dot.warn { background: #f59e0b; box-shadow: 0 0 0 3px rgba(245,158,11,.18); }
  .stat { display: flex; gap: 10px; margin-bottom: 14px; }
  .stat .box { flex: 1; background: var(--card); border-radius: 18px; padding: 14px 12px; text-align: center; box-shadow: var(--shadow); }
  .stat .num { font-size: 22px; font-weight: 700; color: var(--primary); width: 48px; height: 48px; line-height: 48px; border-radius: 50%; background: rgba(95,141,107,.1); margin: 0 auto 8px; font-variant-numeric: tabular-nums; box-shadow: 0 4px 12px rgba(95,141,107,.18); }
  .stat .lbl { font-size: 12px; color: var(--text-sec); }
  .rec { background: var(--card); border-radius: 14px; padding: 10px 12px; margin-bottom: 8px; box-shadow: 0 1px 4px rgba(0,0,0,.04); transition: box-shadow .2s var(--ease); }
  .rec:hover { box-shadow: 0 6px 18px rgba(0,0,0,.06); }
  .rec .r1 { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
  .rec .r1-left { display: flex; align-items: center; gap: 8px; min-width: 0; flex: 1; cursor: pointer; }
  .rec .r1-left .who { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .rec .caret { flex: none; font-size: 11px; color: var(--text-ter); transition: transform .18s var(--ease); }
  .rec.open .caret { transform: rotate(90deg); }
  .rec .line1 { font-size: 12px; color: var(--text-sec); margin-top: 4px; display: flex; gap: 10px; flex-wrap: wrap; }
  .rec .brief { font-size: 13px; color: var(--text); margin-top: 4px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .rec .detail { display: none; margin-top: 8px; padding-top: 8px; border-top: 1px dashed var(--border); }
  .rec.open .detail { display: block; }
  .rec.open .brief { white-space: normal; }
  .filter-bar { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
  .filter-bar select, .filter-bar input { flex: 1; min-width: 120px; padding: 9px 12px; font-size: 13px; border: 1.5px solid var(--border); border-radius: 12px; background: var(--card); color: var(--text); outline: none; font-family: inherit; }
  .filter-bar select:focus, .filter-bar input:focus { border-color: var(--primary); }
  .list-meta { font-size: 12px; color: var(--text-ter); margin-bottom: 8px; display: flex; justify-content: space-between; align-items: center; }
  .load-more { width: 100%; padding: 11px; margin-top: 4px; font-size: 13px; font-weight: 600; color: var(--primary); background: rgba(95,141,107,.08); border: 0; border-radius: 14px; cursor: pointer; font-family: inherit; }
  .load-more:hover { background: rgba(95,141,107,.15); }
  .cap-warn { font-size: 12px; padding: 10px 12px; border-radius: 12px; margin-bottom: 12px; display: none; }
  .cap-warn.show { display: block; }
  .cap-warn.warn { background: rgba(186,117,23,.1); color: #8a560f; }
  .cap-warn.danger { background: rgba(192,57,43,.1); color: var(--accent); }
  .rec .seq-badge { flex: none; font-size: 11px; font-weight: 700; color: #fff; background: var(--primary); padding: 2px 8px; border-radius: 8px; font-variant-numeric: tabular-nums; box-shadow: 0 2px 6px rgba(95,141,107,.25); }
  .success-modal { position: fixed; inset: 0; z-index: 50; display: none; align-items: center; justify-content: center; padding: 22px; background: rgba(0,0,0,.42); }
  .success-modal.show { display: flex; }
  .success-box { width: min(440px, 100%); text-align: center; background: #fff; border-radius: 22px; padding: 34px 24px 26px; box-shadow: 0 18px 60px rgba(0,0,0,.24); }
  .success-mark { color: var(--success); font-size: 28px; font-weight: 800; }
  .success-title { margin-top: 4px; font-size: 20px; font-weight: 800; }
  .success-label { margin-top: 24px; color: var(--text-sec); font-size: 14px; }
  .contract-no { margin: 6px 0 14px; color: #1d4d2a; font-size: clamp(32px, 9vw, 40px); font-weight: 900; letter-spacing: 2px; line-height: 1.15; font-variant-numeric: tabular-nums; word-break: keep-all; }
  .success-tip { color: var(--text-sec); font-size: 13px; line-height: 1.8; }
  .rec .who { font-weight: 700; font-size: 14px; color: var(--text); }
  .rec .time { font-size: 12px; color: var(--text-ter); margin-top: 2px; }
  .rec .content { font-size: 13px; color: var(--text); margin: 8px 0 6px; white-space: pre-wrap; word-break: break-all; }
  .rec .meta { font-size: 12px; color: var(--text-sec); }
  .rec .sigprev { height: 56px; margin-top: 8px; border: 1px solid var(--border); border-radius: 10px; background: #fff; }
  .rec .del { font-size: 12px; color: var(--accent); background: none; border: 0; cursor: pointer; padding: 4px 8px; border-radius: 8px; transition: background .15s; }
  .rec .del:hover { background: rgba(192,57,43,.1); }
  .qr-box { text-align: center; }
  .qr-box canvas, .qr-box img { margin: 0 auto; border: 8px solid #fff; border-radius: 14px; box-shadow: 0 4px 20px rgba(0,0,0,.08); }
  .qr-tip { font-size: 13px; color: var(--text-sec); margin-top: 12px; }
  .qr-tip.warn { color: #b45309; background: #fffbeb; border: 1px solid #fde68a; border-radius: 12px; padding: 10px 12px; text-align: left; }
  .qr-tip code, .qr-tip b { color: #92400e; }
  .qr-url { display: flex; gap: 8px; margin-bottom: 14px; }
  .qr-url input { flex: 1; border: 1px solid var(--border); border-radius: 14px; padding: 11px 14px; font-size: 14px; background: var(--input); color: var(--text); }
  .qr-url input:focus { outline: none; box-shadow: 0 0 0 4px rgba(95,141,107,.12); border-color: rgba(95,141,107,.35); }
  .empty { text-align: center; color: var(--text-ter); padding: 40px 0; font-size: 14px; }
  .section-title { font-size: 15px; font-weight: 700; margin: 4px 0 12px; color: var(--text); }
  .version { font-size: 11px; color: #9a9a9a; text-align: center; padding: 20px 0 8px; letter-spacing: .3px; }
  .login-err { color: var(--accent); font-size: 13px; margin-top: 10px; min-height: 18px; }
  .logout-link { font-size: 12px; color: var(--primary); cursor: pointer; margin-left: auto; }