:root {
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --primary-light: #e0e7ff;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --bg: #f3f4f6;
  --card: #ffffff;
  --text: #1f2937;
  --text-light: #6b7280;
  --border: #e5e7eb;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
#app { max-width: 640px; margin: 0 auto; min-height: 100vh; }

/* Header */
.header {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  padding: 20px 16px;
  text-align: center;
}
.header h1 { font-size: 20px; font-weight: 700; }
.header p { font-size: 13px; opacity: 0.85; margin-top: 4px; }

/* Card */
.card {
  background: var(--card);
  border-radius: 12px;
  margin: 12px;
  padding: 16px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
.card-title { font-size: 17px; font-weight: 700; margin-bottom: 8px; }

/* Document list */
.doc-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 10px;
  cursor: pointer;
  transition: all 0.2s;
}
.doc-item:hover { border-color: var(--primary); box-shadow: 0 2px 8px rgba(79,70,229,0.1); }
.doc-item:active { transform: scale(0.98); }
.doc-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 700;
  flex-shrink: 0;
}
.doc-info { flex: 1; }
.doc-info h3 { font-size: 15px; font-weight: 600; }
.doc-info p { font-size: 12px; color: var(--text-light); margin-top: 2px; }

/* Form */
.form-group { margin-bottom: 14px; }
.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
}
.form-label .req { color: var(--danger); }
.form-input, .form-textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
  -webkit-appearance: none;
}
.form-input:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79,70,229,0.1);
}
.form-textarea { min-height: 80px; resize: vertical; }

/* Checkbox group (multicheckbox) */
.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.checkbox-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  background: #fff;
  font-size: 14px;
  user-select: none;
}
.checkbox-item:hover {
  border-color: var(--primary);
  background: var(--primary-light);
}
.checkbox-item:has(input:checked) {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}
.checkbox-item input[type="checkbox"] {
  accent-color: var(--primary);
  width: 16px;
  height: 16px;
  cursor: pointer;
}
.checkbox-label {
  cursor: pointer;
}

/* Radio group (single choice) — v24 退款申请「退回方式」等 */
.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.radio-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  background: #fff;
  font-size: 14px;
  user-select: none;
}
.radio-item:hover {
  border-color: var(--primary);
  background: var(--primary-light);
}
.radio-item:has(input:checked) {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}
.radio-item input[type="radio"] {
  accent-color: var(--primary);
  width: 16px;
  height: 16px;
  cursor: pointer;
}
.radio-label {
  cursor: pointer;
}

/* Fixed value（v25）—— 按版本固定的取值，只读展示，如退款申请的「退回方式」 */
.fixed-value {
  padding: 11px 14px;
  border: 1.5px dashed var(--border);
  border-radius: 8px;
  background: #f8fafc;
  color: #0f172a;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
}
.check-hint {
  font-size: 12px;
  color: var(--text-light);
  font-weight: 400;
  margin-left: 4px;
}
/* 字段说明（v26）—— 填写指引，如「本人收款只需填本人银行卡」 */
.form-note {
  margin-top: 6px;
  font-size: 12px;
  line-height: 1.55;
  color: var(--text-light);
  background: #eff6ff;
  border-left: 3px solid #60a5fa;
  border-radius: 4px;
  padding: 6px 10px;
}

/* Document body */
.doc-body {
  background: #fafafa;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  margin: 12px 0;
  font-size: 14px;
  line-height: 1.8;
  white-space: pre-wrap;
  color: #374151;
}

/* Signature canvas */
.sig-section {
  margin: 16px 0;
}
.sig-label {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
}
.sig-label .req { color: var(--danger); }
.sig-canvas-wrap {
  border: 2px dashed var(--border);
  border-radius: 8px;
  background: #fff;
  position: relative;
  overflow: hidden;
}
.sig-canvas-wrap canvas {
  display: block;
  width: 100%;
  touch-action: none;
  cursor: crosshair;
}
.sig-hint {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  color: #d1d5db;
  font-size: 14px;
  pointer-events: none;
}
.sig-clear {
  margin-top: 8px;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-light);
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
}
.sig-clear:hover { border-color: var(--danger); color: var(--danger); }

/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
}
.btn-primary:hover { opacity: 0.9; transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn-outline {
  background: transparent;
  border: 1.5px solid var(--border);
  color: var(--text);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-danger {
  background: transparent;
  border: 1.5px solid var(--danger);
  color: var(--danger);
}
.btn-block { display: block; width: 100%; }

/* Toast */
.toast {
  position: fixed;
  top: 20px; left: 50%;
  transform: translateX(-50%);
  padding: 10px 24px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  z-index: 9999;
  animation: toastIn 0.3s ease;
}
.toast-success { background: var(--success); color: #fff; }
.toast-error { background: var(--danger); color: #fff; }
@keyframes toastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(-10px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* Admin */
.admin-header {
  background: linear-gradient(135deg, #1e293b, #334155);
  color: #fff;
  padding: 16px;
}
.admin-header h1 { font-size: 18px; }
.admin-nav {
  display: flex;
  gap: 0;
  background: #fff;
  border-bottom: 2px solid var(--border);
  overflow-x: auto;
}
.admin-nav button {
  flex: 1;
  padding: 12px 8px;
  border: none;
  background: none;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-light);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  white-space: nowrap;
}
.admin-nav button.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

/* Table */
.signing-item {
  background: #fff;
  border-radius: 10px;
  margin: 8px 12px;
  padding: 14px;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.2s;
}
.signing-item:hover { border-color: var(--primary); }
.signing-item .si-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}
.signing-item .si-title { font-weight: 600; font-size: 15px; }
.signing-item .si-badge {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--primary-light);
  color: var(--primary);
}
.signing-item .si-info { font-size: 13px; color: var(--text-light); }
.signing-item .si-time { font-size: 12px; color: var(--text-light); margin-top: 4px; }

/* Filter bar */
.filter-bar {
  display: flex;
  gap: 8px;
  padding: 12px;
}
.filter-bar select, .filter-bar input {
  flex: 1;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
}
.filter-bar input { flex: 2; }

/* Category tabs */
.category-tabs {
  display: flex;
  gap: 8px;
  padding: 12px 12px 0;
  background: #fff;
}
.category-tabs button {
  flex: 1;
  padding: 10px 6px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  background: #fff;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-light);
  cursor: pointer;
  transition: all 0.2s;
}
.category-tabs button.active {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary);
}
.category-tabs button:hover {
  border-color: var(--primary);
}

/* Link bar */
.link-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 12px 8px;
  flex-wrap: wrap;
}
.copy-btn {
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--primary);
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}
.copy-btn:hover { background: var(--primary); color: #fff; }
.copy-btn:active { transform: scale(0.95); }

/* Signing item actions */
.si-actions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}
.si-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-light);
  cursor: pointer;
  transition: all 0.15s;
}
.si-btn:hover { border-color: var(--primary); color: var(--primary); }

/* ====== Mailing status (red/green) ====== */
.signing-item.st-pending {
  border: 1.5px solid #ef4444;
  background: #fef2f2;
  border-left: 5px solid #ef4444;
}
.signing-item.st-downloaded {
  border: 1.5px solid #10b981;
  background: #f0fdf4;
  border-left: 5px solid #10b981;
}
.signing-item.st-mailed {
  border: 1.5px solid #059669;
  background: #ecfdf5;
  border-left: 5px solid #059669;
}
.st-badge {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  margin-right: 6px;
  white-space: nowrap;
}
.st-badge.stb-pending { background: #ef4444; color: #fff; }
.st-badge.stb-downloaded { background: #d1fae5; color: #065f46; border: 1px solid #10b981; }
.st-badge.stb-mailed { background: #10b981; color: #fff; }
.new-badge {
  display: inline-block;
  background: linear-gradient(135deg, #ef4444, #dc2626);
  color: #fff;
  font-size: 10px;
  font-weight: 800;
  padding: 1px 7px;
  border-radius: 10px;
  margin-left: 6px;
  vertical-align: middle;
  animation: newPulse 1.2s infinite;
  letter-spacing: 0.5px;
}
@keyframes newPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(239,68,68,0.5); }
  50% { box-shadow: 0 0 0 5px rgba(239,68,68,0); }
}
.st-times {
  font-size: 12px;
  color: #059669;
  margin-top: 4px;
  font-weight: 500;
}

/* Mailing stats bar */
.mail-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 10px 12px;
  margin: 0 12px 4px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--border);
}
.mail-stats.has-pending {
  background: #fef2f2;
  border: 1.5px dashed #ef4444;
}
.ms-item {
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
}
.ms-red { color: #dc2626; }
.ms-green { color: #059669; }
.ms-new { color: #dc2626; animation: newPulse 1.2s infinite; border-radius: 4px; }

/* Detail page status banner */
.mail-status-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 10px 14px;
  border-radius: 8px;
  margin: 0 0 12px;
  font-size: 13px;
}
.mail-status-banner.st-pending { background: #fef2f2; border: 1.5px solid #ef4444; }
.mail-status-banner.st-downloaded { background: #f0fdf4; border: 1.5px solid #10b981; }
.mail-status-banner.st-mailed { background: #ecfdf5; border: 1.5px solid #059669; }
.msb-time { color: var(--text-light); font-size: 12.5px; }
@media print {
  .mail-status-banner { display: none; }
}

/* Print view */
.print-view {
  background: #fff;
  max-width: 700px;
  margin: 20px auto;
  padding: 40px 50px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  border-radius: 8px;
}
.print-view h2 { text-align: center; margin-bottom: 20px; font-size: 22px; }
.print-body {
  white-space: pre-wrap;
  line-height: 2;
  font-size: 15px;
  margin: 16px 0;
}
.print-fields { margin: 16px 0; }
.print-field {
  display: flex;
  padding: 6px 0;
  border-bottom: 1px solid #eee;
  font-size: 14px;
}
.print-field .pf-label { width: 140px; font-weight: 600; color: var(--text-light); }
.print-field .pf-value { flex: 1; border-bottom: 1px dotted #ccc; padding-bottom: 2px; }
.print-sign {
  margin-top: 40px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}
.print-sign-area {
  text-align: center;
}
.print-sign-area img {
  max-height: 80px;
  max-width: 200px;
}
.print-sign-label { font-size: 14px; color: var(--text-light); margin-top: 4px; }
@media print {
  body { background: #fff; }
  .no-print { display: none !important; }
  .print-view { box-shadow: none; margin: 0; max-width: 100%; padding: 20px; }
}

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  padding: 12px;
}
.stat-card {
  background: #fff;
  border-radius: 10px;
  padding: 16px;
  text-align: center;
  border: 1px solid var(--border);
}
.stat-card .stat-num { font-size: 28px; font-weight: 700; color: var(--primary); }
.stat-card .stat-label { font-size: 13px; color: var(--text-light); margin-top: 4px; }

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal {
  background: #fff;
  border-radius: 12px;
  padding: 24px;
  width: 90%;
  max-width: 400px;
  max-height: 80vh;
  overflow-y: auto;
}
.modal h3 { margin-bottom: 12px; font-size: 17px; }

/* Success page */
.success-icon {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--success);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  margin: 0 auto 16px;
}

/* Back button */
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: none;
  background: none;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  margin-bottom: 8px;
}

/* ====== Mailing list: per-day groups & multi-select ====== */
.si-row {
  display: flex;
  align-items: flex-start;
  gap: 4px;
  margin: 8px 12px;
}
.si-row .signing-item {
  flex: 1;
  margin: 0;
}
.si-check {
  flex-shrink: 0;
  padding-top: 16px;
  cursor: pointer;
}
.si-check input {
  width: 18px;
  height: 18px;
  accent-color: #10b981;
  cursor: pointer;
}
.mail-sel-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  margin: 0 12px 4px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--border);
}
.mail-sel-bar .msb-info {
  font-size: 13px;
  color: var(--text-light);
  white-space: nowrap;
}
.mail-sel-bar .msb-info b {
  color: var(--primary);
  font-size: 15px;
}
.mail-day {
  margin: 8px 12px;
  border-radius: 10px;
  border: 1.5px solid var(--border);
  background: #fff;
  overflow: hidden;
}
.mail-day.md-pending {
  border-color: #ef4444;
  background: #fef2f2;
}
.mail-day.md-ok {
  border-color: #10b981;
  background: #f0fdf4;
}
.mail-day-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  cursor: pointer;
  user-select: none;
  flex-wrap: wrap;
}
.md-arrow {
  font-size: 11px;
  color: var(--text-light);
  transition: transform 0.2s;
}
.mail-day.open .md-arrow {
  transform: rotate(90deg);
  color: var(--primary);
}
.md-date {
  font-weight: 700;
  font-size: 15px;
}
.mail-day.md-pending .md-date { color: #dc2626; }
.mail-day.md-ok .md-date { color: #047857; }
.md-count {
  font-size: 12px;
  color: var(--text-light);
  background: rgba(0,0,0,0.06);
  border-radius: 10px;
  padding: 1px 8px;
  white-space: nowrap;
}
.md-sub {
  flex: 1;
  font-size: 12px;
  font-weight: 600;
  text-align: right;
  white-space: nowrap;
}
.md-red { color: #dc2626; }
.md-green { color: #047857; }
.md-dl {
  border-color: #10b981;
  color: #047857;
  font-weight: 600;
  white-space: nowrap;
}
.mail-day-body {
  display: none;
  border-top: 1px dashed var(--border);
}
.mail-day.open .mail-day-body {
  display: block;
}

/* ===== 邮寄申请：个人 / 单位双入口（v16 2026-09-11）===== */

/* —— 入口选择页：两张大卡片 —— */
.entry-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 18px 16px;
  margin-bottom: 14px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.06);
  cursor: pointer;
  transition: border-color .15s, box-shadow .15s, transform .1s;
}
.entry-card:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.12);
}
.entry-card:active { transform: scale(0.985); }
.entry-icon {
  flex: 0 0 52px;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
}
.entry-body { flex: 1; min-width: 0; }
.entry-body h3 {
  margin: 0 0 4px;
  font-size: 17px;
  font-weight: 600;
  color: #1e293b;
}
.entry-body p {
  margin: 0 0 8px;
  font-size: 13px;
  color: #64748b;
  line-height: 1.5;
}
.entry-tag {
  display: inline-block;
  font-size: 12px;
  color: #0369a1;
  background: #f0f9ff;
  border: 1px solid #bae6fd;
  border-radius: 10px;
  padding: 2px 9px;
}
.entry-arrow {
  flex: 0 0 auto;
  color: #cbd5e1;
  font-size: 26px;
  line-height: 1;
}

/* —— 表单页顶部模式条 —— */
.mode-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 12px;
  font-size: 13px;
}
.mode-bar-p { background: #eff6ff; border: 1px solid #bfdbfe; }
.mode-bar-c { background: #f0fdf4; border: 1px solid #bbf7d0; }
.mode-bar-tag { font-weight: 600; }
.mode-bar-p .mode-bar-tag { color: #1d4ed8; }
.mode-bar-c .mode-bar-tag { color: #15803d; }
.mode-bar-switch {
  color: #64748b;
  text-decoration: underline;
  text-underline-offset: 2px;
  white-space: nowrap;
  font-size: 12px;
}

/* —— 管理端列表：个人 / 单位 徽标 —— */
.mode-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  line-height: 1.6;
  padding: 1px 7px;
  border-radius: 9px;
  margin-left: 4px;
  vertical-align: middle;
}
.mode-badge-personal { background: #eff6ff; color: #1d4ed8; border: 1px solid #bfdbfe; }
.mode-badge-company  { background: #f0fdf4; color: #15803d; border: 1px solid #bbf7d0; }

/* ===== 邮寄申请：单位批量模式（v2 2026-09-11）===== */
.holder-row {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 12px;
  position: relative;
}
.holder-row-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  font-size: 13px;
  font-weight: 600;
  color: #475569;
}
.holder-row-head span {
  background: #e0f2fe;
  color: #0369a1;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 12px;
}
.holder-row .btn-secondary {
  background: #f1f5f9;
  color: #475569;
  border: 1px solid #cbd5e1;
}
.holder-row .btn-secondary:hover {
  background: #e2e8f0;
}
.btn-block {
  width: 100%;
  padding: 12px;
  font-size: 15px;
}
.btn-secondary {
  background: #f1f5f9;
  color: #334155;
  border: 1px solid #cbd5e1;
  padding: 10px 20px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
}
.btn-secondary:hover { background: #e2e8f0; }

/* ====== v43（2026-10-28）：退款申请 承诺条款勾选 + 短信验证码 ====== */
.promise-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-left: 3px solid #f59e0b;
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 10px;
  cursor: pointer;
  line-height: 1.7;
}
.promise-item:active { background: #fef3c7; }
.promise-item input[type="checkbox"] {
  width: 20px;
  height: 20px;
  min-width: 20px;
  margin-top: 3px;
  accent-color: #d97706;
}
.promise-text {
  font-size: 13.5px;
  color: #374151;
}
.sms-row {
  display: flex;
  gap: 8px;
  align-items: stretch;
}
.sms-row .form-input { flex: 1; letter-spacing: 4px; }
.sms-row .btn { white-space: nowrap; padding: 0 14px; font-size: 13.5px; }