/* 工具页样式（复用 style.css 的设计变量） */
.tool-main { padding-top: 48px; }
.tool-grid { display: grid; grid-template-columns: 380px 1fr; gap: 24px; align-items: start; }
.tool-form { display: grid; gap: 14px; }
.tool-form:hover { transform: none; border-color: var(--border-subtle); background: var(--surface-2); }
.field { display: grid; gap: 6px; }
.field label { font-size: 13.5px; color: var(--text-3); }
.field input, .field select, .field textarea {
  width: 100%; background: var(--surface-3); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-input); color: var(--text); font-family: var(--font-body);
  font-size: 15px; padding: 11px 13px; outline: none; resize: vertical;
  transition: border-color .18s ease, background .18s ease;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--brand); background: var(--surface-2); }
.field-row { display: grid; grid-template-columns: 1fr 110px; gap: 12px; }
.check { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-2); }
.check input { width: auto; }
.tool-actions { display: flex; gap: 12px; margin-top: 4px; flex-wrap: wrap; }
.tool-note { font-size: 12.5px; color: var(--text-4); line-height: 1.6; }
.tool-note b { color: var(--text-3); font-weight: 500; }
.tool-preview { display: grid; place-items: start center; gap: 12px; }
#receipt-canvas { width: 100%; max-width: 760px; border-radius: 20px; box-shadow: 0 20px 50px rgba(15, 23, 42, .16); background: #fff; }
.tool-preview small { color: var(--text-4); font-size: 12.5px; }
@media (max-width: 900px) { .tool-grid { grid-template-columns: 1fr; } }