/* ============================================================
   Hanzi Studio — 工具页样式（字帖生成器 / 笔顺）
   ============================================================ */

/* ---------- 工具页外壳 ---------- */
.tool-hero {
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(1100px 300px at 12% -40%, rgba(178,58,44,.055), transparent 62%),
    radial-gradient(900px 260px at 88% -30%, rgba(60,106,92,.05), transparent 60%),
    var(--paper);
  padding: 26px 0 20px;
}
.tool-hero__inner { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.tool-hero h1 { font-family: var(--serif); font-size: clamp(26px, 3.4vw, 38px); letter-spacing: -0.022em; margin-top: 8px; }
.tool-hero p { margin-top: 8px; color: var(--ink-2); max-width: 560px; }
.tool-hero__meta { display: flex; gap: 10px; flex-wrap: wrap; }

/* ---------- Hero 毛笔痕迹特效（试验） ----------
   右侧悬浮 Canvas，pointer-events:none 不挡点击；
   鼠标经过时按速度画出粗细变化的墨迹，约 2s 淡出。 */
.tool-hero { position: relative; }
.brush-canvas {
  position: absolute; top: 0; right: 0;
  width: 50%; height: 100%;   /* 向下延展 1 倍 hero 高度 */
  pointer-events: none; z-index: 1;
}
@media (max-width: 1080px) { .brush-canvas { display: none; } }

.ws-shell {
  display: grid;
  grid-template-columns: 384px minmax(0, 1fr);
  gap: 0;
  align-items: start;
}
@media (max-width: 1080px) { .ws-shell { grid-template-columns: 1fr; } }

/* ---------- 左侧控制面板 ---------- */
.ws-panel {
  border-right: 1px solid var(--line);
  background: var(--surface);
  align-self: stretch;
}
.ws-panel__inner {
  position: sticky; top: var(--header-h);
  max-height: calc(100vh - var(--header-h));
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 24px 24px 48px;
}
@media (max-width: 1080px) {
  .ws-panel { border-right: 0; border-bottom: 1px solid var(--line); }
  .ws-panel__inner { position: static; max-height: none; padding-bottom: 24px; }
}
.panel-group + .panel-group { margin-top: 26px; padding-top: 24px; border-top: 1px solid var(--line); }
.panel-group__title {
  display: flex; align-items: center; gap: 9px;
  font-size: 12px; font-weight: 700; letter-spacing: .13em; text-transform: uppercase;
  color: var(--ink-3); margin-bottom: 16px;
}
.panel-group__title::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.panel-field + .panel-field { margin-top: 18px; }

.charcount { display: flex; align-items: baseline; gap: 5px; font-size: 12px; color: var(--ink-3); }
.charcount b { font-size: 13px; color: var(--ink); font-variant-numeric: tabular-nums; }

.preset-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.chip {
  height: 28px; padding: 0 11px; border-radius: var(--radius-pill);
  border: 1px solid var(--line-2); background: var(--surface);
  font-size: 12.5px; font-weight: 600; color: var(--ink-2);
  display: inline-flex; align-items: center; gap: 6px;
  transition: border-color .15s, color .15s, background .15s;
}
.chip:hover { border-color: var(--seal); color: var(--seal); background: var(--seal-soft); }
.chip--plain:hover { border-color: var(--line-3); color: var(--ink); background: var(--paper-2); }

/* 字格选择器（带缩略图） */
.gridpicker { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.gridpicker__btn {
  border: 1px solid var(--line-2); border-radius: var(--radius); background: var(--surface);
  padding: 6px 4px 5px; display: flex; flex-direction: column; align-items: center; gap: 5px;
  transition: border-color .15s, background .15s, box-shadow .15s;
}
.gridpicker__btn:hover { border-color: var(--line-3); background: var(--surface-2); }
.gridpicker__btn[aria-pressed="true"] {
  border-color: var(--seal); background: var(--seal-soft);
  box-shadow: 0 0 0 1px var(--seal) inset;
}
.gridpicker__btn span { font-size: 10.5px; font-weight: 600; color: var(--ink-2); line-height: 1; }
.gridpicker__btn[aria-pressed="true"] span { color: var(--seal-700); }
.gridpicker__thumb { width: 34px; height: 34px; display: block; }

/* ---------- 右侧预览舞台 ---------- */
.ws-stage { background: var(--paper-2); min-height: 70vh; }
@media (min-width: 1081px) { .ws-stage { min-height: calc(100vh - var(--header-h)); } }

.stage-toolbar {
  position: sticky; top: var(--header-h); z-index: 30;
  background: rgba(245,242,235,.88);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
  padding: 11px 24px;
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
}
.stage-toolbar__spacer { flex: 1; }
.pageinfo {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12.5px; color: var(--ink-2); font-variant-numeric: tabular-nums;
}
.pageinfo b { color: var(--ink); }
.zoom { display: inline-flex; align-items: center; gap: 2px; background: var(--surface); border: 1px solid var(--line-2); border-radius: var(--radius); padding: 2px; }
.zoom button { height: 26px; min-width: 28px; padding: 0 7px; border-radius: 3px; font-size: 12.5px; font-weight: 600; color: var(--ink-2); }
.zoom button:hover { background: var(--paper-2); color: var(--ink); }
.zoom button[aria-pressed="true"] { background: var(--ink); color: #fff; }
.zoom__val { font-size: 12px; font-weight: 700; min-width: 40px; text-align: center; font-variant-numeric: tabular-nums; }

.stage-pages {
  padding: 32px 24px 96px;
  display: block;
  overflow-x: auto;
}
.page-item { width: fit-content; margin: 0 auto 28px; }
.page-frame { transform-origin: top left; }
.page-frame__label {
  font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink-3); text-align: center; margin-bottom: 8px;
}

/* ---------- 纸页 ---------- */
.page {
  background: #fff;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
  color: #000;
  /* 真实纸张尺寸由 JS 写入 width/height */
}
.page__inner { position: absolute; inset: 0; display: flex; flex-direction: column; }

.ws-doc-head {
  display: flex; align-items: flex-end; justify-content: space-between; gap: 16px;
  padding-bottom: 6px; margin-bottom: 10px;
  border-bottom: 1.5px solid #1B1A18;
}
.ws-doc-head__title { font-size: 13px; font-weight: 700; letter-spacing: .01em; }
.ws-doc-head__meta { font-size: 10.5px; color: #444; display: flex; gap: 14px; }
.ws-doc-head__meta span { white-space: nowrap; }
.ws-doc-head__meta i { font-style: normal; display: inline-block; border-bottom: 1px solid #999; min-width: 62px; }

.ws-rows { flex: 1; display: flex; flex-direction: column; }
.ws-row { display: flex; align-items: center; }
.ws-row + .ws-row { margin-top: var(--row-gap, 0px); }

/* 单元格 */
.cell {
  position: relative; flex: 0 0 auto;
  display: flex; flex-direction: column;
}
.cell__pinyin {
  text-align: center; line-height: 1; color: #2B2A26;
  font-variant-numeric: tabular-nums;
  font-family: "Segoe UI", var(--sans);
}
.cell__pinyin--empty { color: transparent; }
.cell__grid { position: relative; flex: 1; }
.cell svg { width: 100%; height: 100%; display: block; overflow: visible; }

.page--grid-print .cell__pinyin { color: #000; }

/* 页码 */
.page__folio {
  position: absolute; bottom: 8px; left: 0; right: 0;
  text-align: center; font-size: 9px; color: #999; letter-spacing: .08em;
}

/* 空状态 */
.stage-empty { padding: 80px 24px; text-align: center; color: var(--ink-3); }
.stage-empty__mark {
  width: 76px; height: 76px; margin: 0 auto 18px;
  border: 1.5px dashed var(--line-3); border-radius: var(--radius);
  display: grid; place-items: center;
  font-family: var(--han-serif); font-size: 34px; color: var(--line-3);
}

/* ---------- 笔顺工具 ---------- */
.stroke-shell { padding: 40px 0 72px; }
.so-search {
  display: flex; gap: 10px; align-items: stretch;
  max-width: 640px; margin-top: 22px;
}
.so-search .input { height: 48px; font-size: 20px; font-family: var(--han-sans); letter-spacing: .08em; }
.so-search .btn { height: 48px; }

.so-chips { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 14px; align-items: center; }
.so-chips__label { font-size: 12px; color: var(--ink-3); font-weight: 600; }

/* 搜索建议 */
.so-suggest {
  position: absolute; top: calc(100% + 6px); left: 0; right: 0; z-index: 50;
  background: var(--surface); border: 1px solid var(--line-2); border-radius: var(--radius);
  box-shadow: var(--shadow-md); overflow: hidden; max-height: 320px; overflow-y: auto;
}
.so-suggest[hidden] { display: none; }
.so-suggest__item {
  width: 100%; display: grid; grid-template-columns: 34px 1fr auto; align-items: center; gap: 10px;
  padding: 8px 12px; text-align: left; transition: background .12s;
}
.so-suggest__item:hover { background: var(--paper-2); }
.so-suggest__item + .so-suggest__item { border-top: 1px solid var(--line); }
.so-search-wrap { position: relative; flex: 1; }

.so-board {
  display: grid; grid-template-columns: minmax(0,1fr) 320px; gap: 28px;
  margin-top: 32px; align-items: start;
}
@media (max-width: 940px) { .so-board { grid-template-columns: 1fr; } }

/* 多字切换标签 */
.so-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.so-tab {
  min-width: 52px; padding: 6px 12px 5px; border: 1px solid var(--line-2); border-radius: var(--radius);
  background: var(--surface); cursor: pointer; text-align: center; transition: border-color .15s, background .15s;
}
.so-tab .han { display: block; font-size: 22px; line-height: 1.1; color: var(--ink); }
.so-tab__py { display: block; font-size: 11px; color: var(--ink-3); margin-top: 2px; }
.so-tab:hover { border-color: var(--seal); }
.so-tab[data-active="true"] { background: var(--seal-soft); border-color: var(--seal); }
.so-tab[data-active="true"] .han { color: var(--seal-700); }

/* 练习卡 */
.so-practice__head {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 18px;
}
.so-practice__title { font-family: var(--serif); font-size: 19px; font-weight: 700; letter-spacing: -.01em; }
.so-practice__body {
  display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 28px; align-items: start;
}
@media (max-width: 720px) { .so-practice__body { grid-template-columns: 1fr; } }

.so-stage {
  position: relative; width: 300px; height: 300px; max-width: 100%;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
.so-stage__grid { position: absolute; inset: 10px; pointer-events: none; }
.so-stage__grid svg { width: 100%; height: 100%; display: block; }
.so-stage__host { position: absolute; inset: 0; }
.so-stage__host svg { position: absolute; inset: 0; width: 100%; height: 100%; }

.so-ctrl-group + .so-ctrl-group { margin-top: 18px; }
.so-ctrl-label {
  font-size: 11px; letter-spacing: .12em; text-transform: uppercase; font-weight: 700;
  color: var(--ink-3); margin-bottom: 8px;
}
.so-ctrl-btns { display: flex; gap: 8px; flex-wrap: wrap; }

.seg--seal { max-width: 320px; }
.seg--seal .seg__btn[aria-pressed="true"] { background: var(--seal); color: #fff; border-color: var(--seal); }

.so-status {
  margin-top: 22px; background: var(--paper-2); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 10px 14px; font-size: 13.5px; color: var(--ink-2);
  min-height: 42px; display: flex; align-items: center;
}
.so-status[data-tone="ok"] { border-color: var(--jade); background: #F3F7F3; }
.so-status[data-tone="err"] { border-color: var(--seal); background: var(--seal-soft); }

/* 逐笔分解 */
.so-bd__row { display: flex; gap: 14px; flex-wrap: wrap; }
.so-bd__item {
  width: 90px; display: flex; flex-direction: column; align-items: center; gap: 6px;
  background: transparent; border: 0; cursor: pointer; padding: 0;
}
.so-bd__thumb {
  position: relative; width: 90px; height: 90px; background: #fff;
  border: 1px solid var(--line-2); border-radius: var(--radius); overflow: hidden;
  transition: border-color .15s, box-shadow .15s;
}
.so-bd__item:hover .so-bd__thumb { border-color: var(--seal); }
.so-bd__item[data-active="true"] .so-bd__thumb { border-color: var(--seal); box-shadow: 0 0 0 1px var(--seal); }
.so-bd__thumb svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.so-bd__no {
  position: absolute; top: 5px; left: 5px; z-index: 2; width: 18px; height: 18px; border-radius: 50%;
  background: var(--paper-2); border: 1px solid var(--line-2);
  font-size: 10px; font-weight: 700; color: var(--ink-3); display: grid; place-items: center;
}
.so-bd__name { font-size: 12px; color: var(--ink-3); white-space: nowrap; }
.so-bd__name b { color: var(--ink); font-weight: 700; }

/* 侧栏 · 汉字信息 */
.so-info__preview { width: 136px; margin: 18px auto; }
.so-info__preview svg { width: 100%; height: auto; display: block; }
.so-info__rows { border-top: 1px solid var(--line); }
.so-info__row {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 13.5px;
}
.so-info__row > span:first-child { color: var(--ink-3); font-weight: 600; }
.so-info__row b { font-weight: 600; word-break: break-word; text-align: right; }
.so-info__han { font-family: var(--han-sans); }
.so-name-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.so-name-chip {
  font-size: 12px; padding: 4px 10px; border: 1px solid var(--line-2); border-radius: 999px;
  background: var(--surface); color: var(--ink-2);
}
.so-name-chip b { color: var(--seal-700); font-weight: 700; }
.so-info__def {
  margin-top: 16px; padding: 12px 14px; background: var(--paper-2);
  border: 1px solid var(--line); border-radius: var(--radius);
}
.so-info__actions { margin-top: 18px; display: flex; flex-direction: column; gap: 8px; }

.so-aside { position: sticky; top: calc(var(--header-h) + 20px); display: flex; flex-direction: column; gap: 18px; }
@media (max-width: 940px) { .so-aside { position: static; } }

/* 笔画难度提示 */
.so-legend { display: flex; flex-direction: column; gap: 8px; font-size: 13px; color: var(--ink-2); }
.so-legend__row { display: flex; align-items: flex-start; gap: 9px; }
.so-legend__dot { width: 9px; height: 9px; border-radius: 2px; margin-top: 6px; flex: 0 0 auto; }

/* ---------- 商店 / 电子资料 ---------- */
.store-hero {
  background:
    radial-gradient(900px 340px at 80% -30%, rgba(178,58,44,.07), transparent 60%),
    var(--paper);
  border-bottom: 1px solid var(--line);
  padding: 64px 0 56px;
}
.store-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
@media (max-width: 900px) { .store-grid { grid-template-columns: 1fr; gap: 36px; } }

.price-tag { display: flex; align-items: baseline; gap: 10px; }
.price-tag__now { font-family: var(--serif); font-size: 40px; font-weight: 700; letter-spacing: -0.02em; }
.price-tag__was { font-size: 16px; color: var(--ink-3); text-decoration: line-through; }

.check-list { display: flex; flex-direction: column; gap: 11px; }
.check-list li { display: flex; gap: 10px; align-items: flex-start; font-size: 14.5px; color: var(--ink-2); }
.check-list svg { flex: 0 0 auto; margin-top: 4px; color: var(--jade); }

.book-cover {
  aspect-ratio: 3 / 4; width: 100%; max-width: 320px; margin: 0 auto;
  background: linear-gradient(160deg, #FFFFFF 0%, #F7F3EA 100%);
  border: 1px solid var(--line-2); border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 26px; display: flex; flex-direction: column; position: relative; overflow: hidden;
}
.book-cover::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 7px;
  background: var(--seal);
}
.book-cover__grid { position: absolute; inset: 22% 18% 34% 18%; opacity: .5; pointer-events: none; }
.book-cover__title { font-family: var(--serif); font-size: 26px; line-height: 1.15; letter-spacing: -0.02em; margin-top: auto; position: relative; }
.book-cover__sub { font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--seal); font-weight: 700; }
.book-cover__foot { font-size: 12px; color: var(--ink-3); margin-top: 10px; position: relative; }

/* ---------- 四册合集（捐助赠品） ---------- */
.lib-hero { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px 18px; }
@media (max-width: 520px) { .lib-hero { grid-template-columns: 1fr; } }

.lib-card { display: flex; flex-direction: column; }
.lib-card__cover {
  position: relative; aspect-ratio: 3 / 4; overflow: hidden;
  background: linear-gradient(160deg, #FFFFFF 0%, #F7F3EA 100%);
  border: 1px solid var(--line-2); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 15px 14px 14px 19px; display: flex; flex-direction: column;
}
.lib-card__cover::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 5px; background: var(--seal);
}
.lib-card--jade .lib-card__cover::before { background: var(--jade); }
.lib-card--gold .lib-card__cover::before { background: var(--gold); }
.lib-card--ink  .lib-card__cover::before { background: var(--ink-3); }
.lib-card--plum .lib-card__cover::before { background: var(--plum); }
.lib-card__no {
  position: relative; font-size: 9.5px; font-weight: 700; letter-spacing: .18em;
  text-transform: uppercase; color: var(--seal);
}
.lib-card--jade .lib-card__no { color: var(--jade); }
.lib-card--gold .lib-card__no { color: var(--gold); }
.lib-card--ink  .lib-card__no { color: var(--ink-3); }
.lib-card--plum .lib-card__no { color: var(--plum); }
.lib-card__art { position: absolute; inset: 30% 20% 33% 24%; opacity: .6; pointer-events: none; }
.lib-card__title {
  position: relative; margin-top: auto; font-family: var(--serif);
  font-size: 15px; line-height: 1.2; letter-spacing: -.01em;
}
.lib-card__meta { position: relative; margin-top: 6px; font-size: 11px; line-height: 1.45; color: var(--ink-3); }

.lib-total {
  display: flex; flex-wrap: wrap; gap: 14px 32px;
  margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--line);
}
.lib-total b { display: block; font-family: var(--serif); font-size: 23px; letter-spacing: -.02em; }
.lib-total span { font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); }

.lib-included { display: grid; gap: 20px; grid-template-columns: repeat(2, 1fr); }
@media (max-width: 820px) { .lib-included { grid-template-columns: 1fr; } }
.lib-included .card { display: flex; flex-direction: column; }
.lib-included .card p { flex: 1 1 auto; }
.lib-spec { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.lib-spec span {
  font-size: 10.5px; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3);
  border: 1px solid var(--line); border-radius: var(--radius-pill); padding: 3px 9px;
}

.form-inline { display: flex; gap: 10px; }
@media (max-width: 520px) { .form-inline { flex-direction: column; } }

/* 常见问题 */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  list-style: none; cursor: pointer; padding: 18px 0;
  font-size: 16px; font-weight: 600; display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "＋"; color: var(--seal); font-size: 18px; font-weight: 400; flex: 0 0 auto;
}
.faq details[open] summary::after { content: "－"; }
.faq p { padding: 0 0 18px; color: var(--ink-2); max-width: 68ch; }

/* ---------- 打印 ---------- */
@media print {
  html, body {
    background: #fff !important;
    margin: 0 !important; padding: 0 !important;
    height: auto !important; width: auto !important;
  }
  body { font-size: 12pt; }
  .wrap { max-width: none !important; padding: 0 !important; margin: 0 !important; }
  main { display: block !important; }

  .site-header, .site-footer, .ad-slot, .no-print, .toast-host,
  .tool-hero, .ws-panel, .stage-toolbar, .stage-empty { display: none !important; }

  .ws-shell { display: block !important; grid-template-columns: none !important; }
  /* 字帖页：只打印预览纸张，其余营销内容一律不进打印 */
  .page-worksheet main > *:not(.ws-shell) { display: none !important; }
  .page-worksheet .ws-shell > *:not(.ws-stage) { display: none !important; }
  .ws-stage, .stage-pages {
    display: block !important; background: #fff !important;
    padding: 0 !important; margin: 0 !important; min-height: 0 !important;
    gap: 0 !important; overflow: visible !important;
  }
  .page-item { display: block !important; width: auto !important; margin: 0 !important; }
  .page-frame { transform: none !important; width: auto !important; height: auto !important; margin: 0 !important; }
  .page-frame__label { display: none !important; }
  .page {
    box-shadow: none !important; border: 0 !important; margin: 0 !important;
    transform: none !important; transform-origin: top left !important;
    break-inside: avoid; page-break-inside: avoid;
    break-after: page; page-break-after: always;
  }
  .page:last-of-type { break-after: auto; page-break-after: auto; }
  .page__folio { display: none !important; }
  * { -webkit-print-color-adjust: exact !important; print-color-adjust: exact !important; }
}

/* ---------- 移动端 ---------- */
@media (max-width: 640px) {
  .tool-hero { padding: 28px 0 24px; }
  .ws-panel { padding: 18px 16px 32px; }
  .stage-pages { padding: 20px 12px 72px; }
  .stage-toolbar { padding: 10px 14px; }
  .so-card, .so-card__canvas { width: 100%; max-width: 320px; }
  .so-card__canvas { height: auto; aspect-ratio: 1; }
}