/* 在线手写台账生成工具 - 通用样式（同款产品风格：左侧导航 + 两栏卡片） */
* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --ink: #2b2f36;
  --ink-soft: #6b7280;
  --line: #e5e7eb;
  --paper: #f4f6f8;
  --accent: #3a6ff0;          /* 主色蓝 */
  --accent-dark: #2f5cd6;
  --accent-soft: #e8effe;
  --bg-panel: #ffffff;
  --warn: #b45309;
}

html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--paper);
  color: var(--ink);
  font-size: 14px;
}

/* ---------- 左侧导航 ---------- */
.side-nav {
  position: fixed;
  left: 0; top: 0; bottom: 0;
  width: 168px;
  background: #fff;
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  padding: 18px 10px;
  gap: 4px;
  z-index: 20;
}
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px;
  border-radius: 9px;
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 14px;
  background: none; border: none; cursor: pointer;
  width: 100%; text-align: left; font-family: inherit;
}
.nav-item .ico { font-size: 17px; width: 22px; text-align: center; }
.nav-item:hover { background: var(--paper); color: var(--ink); }
.nav-item.active { color: var(--accent); background: var(--accent-soft); font-weight: 600; }
.nav-item.as-btn { margin-top: 8px; }

.main { margin-left: 168px; min-height: 100vh; }

/* ---------- 合规提示 ---------- */
.compliance {
  background: #fdf3e7;
  color: var(--warn);
  border-bottom: 1px solid #f3e0c8;
  padding: 8px 22px;
  font-size: 12.5px;
}

/* ---------- 工作区两栏 ---------- */
.work {
  display: flex;
  gap: 18px;
  padding: 18px 22px;
  align-items: flex-start;
}
.col-left { width: 400px; flex-shrink: 0; display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.col-right { flex: 1; min-width: 0; }

.card {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
}
.card h2 { font-size: 16px; margin-bottom: 10px; }
.card-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.card-head h2 { margin-bottom: 0; }
.head-actions { display: flex; gap: 6px; }
.hint { font-size: 12.5px; color: var(--ink-soft); line-height: 1.6; margin-bottom: 10px; }

/* ---------- 按钮 ---------- */
.btn {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  padding: 8px 14px;
  border-radius: 9px;
  font-size: 13.5px;
  cursor: pointer;
  transition: all .15s;
  font-family: inherit;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-dark); color: #fff; }
.btn.small { padding: 5px 11px; font-size: 12.5px; border-radius: 8px; }
.btn.mini { padding: 3px 9px; font-size: 12px; border-radius: 7px; }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-block { width: 100%; }
.flex1 { flex: 1; }
.action-row { display: flex; gap: 10px; margin-top: 10px; flex-wrap: wrap; }
.action-row .btn { white-space: nowrap; }
.sep { width: 1px; height: 18px; background: var(--line); display: inline-block; }

/* ---------- 文本输入 / 行列表 ---------- */
.txt-import {
  width: 100%; min-height: 110px;
  border: 1px solid var(--line); border-radius: 9px;
  padding: 10px; font-size: 13.5px; line-height: 1.7;
  resize: vertical; font-family: inherit;
}
.txt-import:focus { outline: 2px solid #c7d8fb; }
.rowlist-head {
  display: flex; justify-content: space-between; align-items: center;
  margin: 14px 0 6px; font-size: 12.5px; color: var(--ink-soft);
}
.row-list { list-style: none; overflow-y: auto; max-height: 220px; }
.row-item {
  display: flex; align-items: center; gap: 6px;
  padding: 5px 6px; border: 1px solid var(--line); border-radius: 8px;
  margin-bottom: 6px; background: #fff;
}
.row-item:hover { border-color: #b9ccf6; }
.row-item .grip { cursor: grab; color: #bbb; font-size: 15px; user-select: none; }
.row-item .row-no { font-size: 11px; color: var(--ink-soft); width: 24px; flex-shrink: 0; text-align: right; }
.row-item input {
  flex: 1; border: 1px solid transparent; padding: 5px 6px; border-radius: 6px;
  font-size: 13px; font-family: inherit; background: #f7f8fa;
}
.row-item input:focus { outline: none; border-color: #c7d8fb; background: #fff; }
.row-item .del { cursor: pointer; color: #d0604a; font-size: 14px; background: none; border: none; }
.row-item.dragging { opacity: .4; }

/* ---------- 控制面板 ---------- */
.ctrl { margin-bottom: 14px; }
.ctrl label { display: block; font-size: 13px; color: var(--ink); margin-bottom: 6px; }
.ctrl .val { color: var(--accent); font-weight: 600; float: right; }
.ctrl input[type=range] { width: 100%; accent-color: var(--accent); }
.range-labels { display: flex; justify-content: space-between; font-size: 11px; color: #9aa1ab; margin-top: 2px; }
.recommend { font-size: 11.5px; color: #9aa1ab; margin-top: 3px; }
.ctrl select, .ctrl input[type=number], .ctrl input[type=text], .ctrl input[type=file] {
  width: 100%; padding: 8px 10px; border: 1px solid var(--line); border-radius: 9px;
  font-size: 13.5px; background: #fff; font-family: inherit;
}
.advanced { border-top: 1px dashed var(--line); padding-top: 12px; }
.advanced > summary { cursor: pointer; font-size: 13.5px; color: var(--ink-soft); margin-bottom: 10px; }
.advanced[open] > summary { color: var(--ink); }
.margin-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.margin-grid div { display: flex; align-items: center; gap: 6px; }
.margin-grid span { font-size: 12px; color: var(--ink-soft); width: 22px; }
.margin-grid input { flex: 1; }

.draft-note { font-size: 11.5px; color: var(--ink-soft); line-height: 1.6; border-top: 1px dashed var(--line); padding-top: 10px; margin-top: 8px; }

/* ---------- 预览 ---------- */
.pager { display: flex; align-items: center; justify-content: center; gap: 12px; margin-bottom: 12px; }
.page-info { font-size: 13.5px; min-width: 56px; text-align: center; color: var(--ink-soft); }
.canvas-wrap {
  display: flex; align-items: flex-start; justify-content: center;
  background: #eceef1; border: 1px solid var(--line); border-radius: 12px;
  padding: 18px; min-height: 420px; max-height: 78vh; overflow: auto;
}
.canvas-wrap canvas { box-shadow: 0 6px 22px rgba(0,0,0,.18); background: #fff; max-width: 100%; height: auto; }

.footer { padding: 18px 22px 28px; font-size: 12px; color: #9aa1ab; text-align: center; }

/* ---------- 兼容旧页面（topbar/panel 等） ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 18px; background: #fff; border-bottom: 1px solid var(--line);
  flex-wrap: wrap; gap: 10px;
}
.brand-title { font-size: 18px; font-weight: 700; }
.brand-sub { font-size: 12px; color: var(--ink-soft); margin-top: 2px; }
.top-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.panel {
  background: var(--bg-panel); border: 1px solid var(--line);
  border-radius: 12px; padding: 12px; overflow-y: auto;
}
.panel h3 { font-size: 15px; margin-bottom: 8px; }
.center-hint { text-align: center; margin-top: 6px; }

/* 全局横向溢出防护 */
html, body { max-width: 100%; overflow-x: hidden; }
img, canvas, video { max-width: 100%; }
.work, .col-left, .col-right, .card { min-width: 0; max-width: 100%; }
p, li, .hint, .draft-note { overflow-wrap: break-word; word-break: break-word; }
.txt-import, .ctrl select, .ctrl input, .row-item input { max-width: 100%; min-width: 0; }

@media (max-width: 1024px) {
  .side-nav { width: 56px; }
  .nav-item { justify-content: center; padding: 10px 0; font-size: 0; }
  .nav-item .ico { font-size: 18px; }
  .main { margin-left: 56px; }
  .work { flex-direction: column; padding: 14px; gap: 14px; min-width: 0; }
  .col-left { width: 100%; flex-shrink: 1; min-width: 0; }
  .col-right { width: 100%; min-width: 0; }
  .canvas-wrap { padding: 12px; }
  .card { padding: 14px; }
}

@media (max-width: 480px) {
  .compliance, .footer { padding-left: 12px; padding-right: 12px; }
  .card-head { flex-direction: column; align-items: flex-start; gap: 8px; }
  .head-actions { width: 100%; }
  .margin-grid { grid-template-columns: 1fr 1fr; }
}