/* ===================================================================
   足球教案助手 — 视觉系统（参照 DESIGN.md）
   靛蓝 CTA + 深海军蓝墨色 + 细体负字距 + 胶囊按钮 + 渐变网格头图
   =================================================================== */

:root {
  /* 品牌 */
  --primary: #533afd;
  --primary-deep: #4434d4;
  --primary-press: #2e2b8c;
  --primary-soft: #665efd;
  --primary-subdued: #b9b9f9;
  --brand-dark: #1c1e54;
  --ruby: #ea2261;
  --magenta: #f96bee;

  /* 墨色 */
  --ink: #0d253d;
  --ink-2: #273951;
  --ink-mute: #64748d;
  --on-primary: #ffffff;

  /* 表面 */
  --canvas: #ffffff;
  --canvas-soft: #f6f9fc;
  --canvas-cream: #f5e9d4;
  --hairline: #e3e8ee;
  --hairline-input: #a8c3de;

  /* 圆角 */
  --r-xs: 4px;
  --r-sm: 6px;
  --r-md: 8px;
  --r-lg: 12px;
  --r-xl: 16px;
  --r-pill: 9999px;

  /* 间距 */
  --s-xs: 4px;
  --s-sm: 8px;
  --s-md: 12px;
  --s-lg: 16px;
  --s-xl: 24px;
  --s-xxl: 32px;

  /* 阴影 */
  --lift-1: 0 1px 3px rgba(0, 55, 112, .08);
  --lift-2: 0 8px 24px rgba(0, 55, 112, .08), 0 2px 6px rgba(0, 55, 112, .04);

  /* 中文优先用苹方/微软雅黑；拉丁与数字走系统 UI 字体 */
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
          "Microsoft YaHei", "Segoe UI", Roboto, system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font);
  font-weight: 400;
  font-size: 15px;
  line-height: 1.7;          /* 中文行高要比拉丁大 */
  letter-spacing: 0;         /* 中文不用负字距，否则字会挤在一起 */
  color: var(--ink);
  background: var(--canvas-soft);
  min-height: 100vh;
}

button { font-family: inherit; cursor: pointer; }
.hidden { display: none !important; }
.muted { color: var(--ink-mute); font-size: 13px; }
.tnum { font-feature-settings: "tnum"; }

/* ===== 表单控件 ===== */
input, select, textarea {
  font-family: inherit;
  font-weight: 400;
  font-size: 15px;
  color: var(--ink);
  background: var(--canvas);
  border: 1px solid var(--hairline-input);
  border-radius: var(--r-sm);
  padding: 9px 12px;
  width: 100%;
  transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(83, 58, 253, .12);
}
select {
  appearance: none;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2364748d' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

/* ===== 头部：渐变网格 ===== */
.app-header {
  position: relative;
  background: var(--canvas);
  overflow: hidden;
  border-bottom: 1px solid var(--hairline);
}
.app-header::before {
  content: "";
  position: absolute;
  inset: -55% -10% auto -10%;
  height: 300px;
  background:
    radial-gradient(40% 120% at 10% 46%, #f7edda 0%, rgba(247,237,218,0) 64%),
    radial-gradient(36% 112% at 31% 32%, #fbdcb4 0%, rgba(251,220,180,0) 62%),
    radial-gradient(42% 122% at 53% 50%, #d7cffc 0%, rgba(215,207,252,0) 64%),
    radial-gradient(38% 118% at 74% 30%, #a99cfb 0%, rgba(169,156,251,0) 60%),
    radial-gradient(36% 112% at 93% 52%, #f7b6f2 0%, rgba(247,182,242,0) 62%);
  filter: blur(34px);
  opacity: .7;
  pointer-events: none;
}
.header-inner {
  position: relative;
  max-width: 1080px;
  margin: 0 auto;
  padding: 22px 24px 0;
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}
.logo { display: flex; align-items: center; gap: 9px; }
.logo-mark { width: 26px; height: 26px; flex-shrink: 0; display: block; }
.logo-text {
  font-size: 21px;
  font-weight: 700;          /* 整体一个字重，不在同一个词里混粗细 */
  letter-spacing: .5px;      /* 中文加一点字距更透气 */
  color: var(--ink);
}
.tagline { font-size: 13px; color: var(--ink-mute); }

.tabs {
  position: relative;
  max-width: 1080px;
  margin: 14px auto 0;
  padding: 0 24px;
  display: flex;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }
.tab {
  border: none;
  background: transparent;
  color: var(--ink-mute);
  font-size: 15px;
  font-weight: 500;
  padding: 10px 14px 13px;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color .15s, border-color .15s;
}
.tab:hover { color: var(--ink); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }

/* ===== 主体 ===== */
.app-main { max-width: 1080px; margin: 0 auto; padding: 28px 24px 72px; }
.panel { display: none; }
.panel.active { display: block; }

.card {
  background: var(--canvas);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  box-shadow: var(--lift-1);
  padding: var(--s-xxl);
  margin-bottom: var(--s-lg);
}
.card h2 {
  font-size: 19px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 4px;
}
.card > .muted:first-of-type { margin-bottom: 20px; }

/* ===== 表单 ===== */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--s-lg);
  margin-bottom: 22px;
}
.field { display: block; margin-bottom: 22px; }
.field-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .3px;
  color: var(--ink-2);
  margin-bottom: 8px;
}
.field-label small {
  font-size: 12px;
  letter-spacing: 0;
  font-weight: 400;
  color: var(--ink-mute);
}

/* 人数步进器 */
.stepper { display: flex; align-items: center; gap: 10px; }
.step-btn {
  width: 40px; height: 40px; flex-shrink: 0;
  border: 1px solid var(--hairline); background: var(--canvas);
  border-radius: var(--r-pill); font-size: 20px; font-weight: 500;
  color: var(--ink-2); line-height: 1; transition: all .15s;
}
.step-btn:hover { border-color: var(--primary); color: var(--primary); background: rgba(83,58,253,.04); }
.step-btn:active { background: var(--primary); border-color: var(--primary); color: #fff; }
.stepper input {
  width: 76px; text-align: center; font-size: 19px; font-weight: 600;
  font-feature-settings: "tnum"; padding: 8px 4px;
}
.stepper input::-webkit-outer-spin-button,
.stepper input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.stepper input { -moz-appearance: textfield; }
.step-unit { font-size: 14px; color: var(--ink-mute); }

/* 分段选择器 */
.seg {
  display: inline-flex; align-items: center; gap: 4px;
  background: var(--canvas-soft); border: 1px solid var(--hairline);
  border-radius: var(--r-pill); padding: 4px; flex-wrap: wrap;
}
.seg button {
  border: none; background: transparent; color: var(--ink-mute);
  font-size: 14px; font-weight: 500; padding: 8px 16px;
  border-radius: var(--r-pill); transition: all .15s; white-space: nowrap;
  font-feature-settings: "tnum";
}
.seg button:hover { color: var(--ink); }
.seg button.on {
  background: var(--canvas); color: var(--primary); font-weight: 600;
  box-shadow: var(--lift-1);
}
.seg-unit { font-size: 13px; color: var(--ink-mute); padding: 0 10px 0 4px; }

.chip-group { display: flex; flex-wrap: wrap; gap: 7px; }
/* 主题选择：阶段标签 → 主题芯片 → 已选清单 */
.seg-tabs {
  display: flex; width: 100%; flex-wrap: nowrap;
  overflow-x: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch;
}
.seg-tabs::-webkit-scrollbar { display: none; }
.seg-tabs button { flex: 1 1 auto; padding: 8px 10px; font-size: 13.5px; min-width: 0; }
.seg-tabs .g-short { display: none; }
.t-hint { font-size: 12.5px; color: var(--ink-mute); margin: 10px 0 9px; line-height: 1.5; }

/* 主题卡片网格：名字 + 一句话解释，比一排芯片好读 */
.theme-grid {
  display: grid; gap: 8px; margin-bottom: 14px;
  grid-template-columns: repeat(auto-fill, minmax(215px, 1fr));
}
.theme-item {
  position: relative; text-align: left;
  display: flex; flex-direction: column; gap: 3px;
  border: 1px solid var(--hairline); background: var(--canvas);
  border-radius: var(--r-md); padding: 11px 30px 11px 13px;
  transition: border-color .15s, background .15s;
}
.theme-item b { font-size: 14px; font-weight: 600; color: var(--ink); line-height: 1.4; }
.theme-item small { font-size: 12px; color: var(--ink-mute); line-height: 1.55; }
.theme-item:hover { border-color: var(--primary-subdued); }
.theme-item::after {
  content: ""; position: absolute; top: 12px; right: 12px;
  width: 16px; height: 16px; border-radius: 50%;
  border: 1.5px solid var(--hairline-strong, #cdd5df); transition: all .15s;
}
.theme-item.selected { border-color: var(--primary); background: rgba(83,58,253,.045); }
.theme-item.selected b { color: var(--primary-deep); }
.theme-item.selected::after {
  content: "✓"; background: var(--primary); border-color: var(--primary);
  color: #fff; font-size: 10px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.t-picked {
  display: flex; align-items: center; flex-wrap: wrap; gap: 7px;
  border-top: 1px dashed var(--hairline); padding-top: 12px;
}
.t-picked-label {
  font-size: 11.5px; font-weight: 600; color: var(--ink-mute);
  letter-spacing: .3px; margin-right: 2px;
}
.t-empty { font-size: 12.5px; color: var(--ink-mute); }
.pick-pill {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--primary); background: rgba(83,58,253,.07);
  color: var(--primary-deep); font-size: 13px; font-weight: 500;
  padding: 5px 11px; border-radius: var(--r-pill); transition: all .15s;
}
.pick-pill .ico { width: 13px; height: 13px; opacity: .5; }
.pick-pill:hover { background: rgba(83,58,253,.13); }
.pick-pill:hover .ico { opacity: 1; }
.chip {
  border: 1px solid var(--hairline);
  background: var(--canvas);
  color: var(--ink-2);
  font-size: 14px;
  font-weight: 500;
  padding: 7px 14px;
  border-radius: var(--r-pill);
  transition: all .15s;
}
.chip:hover { border-color: var(--primary-subdued); color: var(--primary-deep); }
.chip.selected {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--on-primary);
  font-weight: 600;
}

/* 生成方式 */
.mode-switch { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-md); }
.mode-option {
  display: flex; gap: 10px; align-items: flex-start;
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  padding: 14px;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.mode-option:hover { border-color: var(--primary-subdued); }
.mode-option:has(input:checked) {
  border-color: var(--primary);
  background: rgba(83, 58, 253, .04);
}
.mode-option input { width: auto; margin-top: 3px; accent-color: var(--primary); }
.mode-body b { font-size: 15px; font-weight: 600; }
.mode-body small {
  display: block; color: var(--ink-mute); font-size: 12.5px;
  margin-top: 3px; line-height: 1.45;
}

/* ===== 线性图标 ===== */
/* 不用 emoji：各家系统渲染出来的大小、颜色、风格都不一样，凑在一起很杂。
   统一 24 网格、1.8px 描边、圆角端点，跟战术板和 logo 是同一套画法。 */
.ico {
  width: 16px; height: 16px; flex: none;
  fill: none; stroke: currentColor;
  stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  border: 1px solid var(--hairline);
  background: var(--canvas);
  color: var(--ink-2);
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  padding: 10px 18px;
  border-radius: var(--r-pill);
  transition: all .15s;
}
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--on-primary);
}
.btn-primary:hover { background: var(--primary-deep); border-color: var(--primary-deep); color: var(--on-primary); }
.btn-primary:active { background: var(--primary-press); border-color: var(--primary-press); }
.btn-lg { width: 100%; padding: 15px; font-size: 16px; font-weight: 600; margin-top: 6px; }
.btn-ghost { border-color: transparent; background: transparent; color: var(--ink-mute); }
.btn-ghost:hover { border-color: transparent; color: var(--primary); }
.btn-ghost.danger { color: var(--ruby); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn .ico { opacity: .78; }
.btn:hover .ico, .btn-primary .ico { opacity: 1; }
.btn-lg .ico { width: 18px; height: 18px; }

/* ===== 结果区 ===== */
.result-toolbar {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: var(--s-sm);
  padding-bottom: var(--s-lg);
  border-bottom: 1px solid var(--hairline);
  margin-bottom: var(--s-xl);
}
.toolbar-actions { display: flex; gap: var(--s-sm); flex-wrap: wrap; }
.gen-status {
  display: flex; align-items: center; gap: 10px;
  color: var(--primary-deep); font-size: 14px; padding: 6px 0 14px;
}
.spinner {
  width: 15px; height: 15px;
  border: 2px solid var(--primary-subdued);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.usage-line {
  margin-top: var(--s-xl);
  padding: 11px 14px;
  background: var(--canvas-soft);
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  font-size: 13px;
  font-feature-settings: "tnum";
  color: var(--ink-mute);
}

/* ===== 教案正文 ===== */
.plan-content { font-size: 15.5px; line-height: 1.75; color: var(--ink-2); }
.plan-content h1 {
  font-size: 30px; font-weight: 700; line-height: 1.3;
  color: var(--ink); margin: 4px 0 14px;
}
/* 环节标题：序号圆点 + 名称 + 时间徽章 */
.plan-content h2 {
  display: flex; align-items: center; gap: 10px;
  font-size: 16px; font-weight: 700; letter-spacing: .2px;
  color: var(--ink); background: none; padding: 0 0 11px;
  margin: 40px 0 18px; border-bottom: 2px solid var(--primary-subdued);
}
.plan-content h2 > span { flex: 1; min-width: 0; }
.sec-no {
  flex-shrink: 0; width: 24px; height: 24px; border-radius: 50%;
  background: var(--primary); color: #fff;
  font-size: 12px; font-weight: 700; line-height: 24px; text-align: center;
}
.sec-time {
  flex-shrink: 0; font-style: normal; font-size: 12px; font-weight: 600;
  color: var(--primary-deep); background: var(--primary-subdued);
  padding: 4px 11px; border-radius: var(--r-pill);
  font-feature-settings: "tnum";
}
.plan-content h3 {
  display: flex; align-items: baseline; gap: 10px;
  font-size: 20px; font-weight: 600; line-height: 1.45;
  color: var(--ink); margin: 26px 0 10px; padding: 0; border: none;
}
.plan-content h3 > span { flex: 1; min-width: 0; }
.t-badge {
  flex-shrink: 0; font-style: normal; font-size: 13px; font-weight: 600;
  color: var(--ink-mute); font-feature-settings: "tnum";
}

/* 图例折叠 */
.legend-box {
  border: 1px solid var(--hairline); border-radius: var(--r-md);
  background: var(--canvas-soft); padding: 10px 14px; margin-bottom: 20px;
}
.legend-box summary {
  cursor: pointer; font-size: 13px; font-weight: 600; color: var(--ink-mute);
  list-style: none;
}
.legend-box summary::-webkit-details-marker { display: none; }
.legend-box summary::before { content: "▸ "; }
.legend-box[open] summary::before { content: "▾ "; }
.legend-box .diagram-legend { border: none; background: transparent; padding: 10px 0 2px; margin: 0; }

/* 备课笔记：暖色区块，与场边正文区分 */
.notes-block {
  background: var(--canvas-cream);
  border-radius: var(--r-lg);
  padding: 4px 24px 22px;
  margin-top: 36px;
}
.notes-block h2 {
  border-bottom-color: rgba(13, 37, 61, .14);
  margin-top: 24px;
}
.notes-block .sec-no { background: #a8742a; }
.notes-block li::before { background: #c99a4e; }
.plan-content h2 + h3 { margin-top: 0; }
.plan-content p { margin: 8px 0; }
.plan-content ul { margin: 10px 0 14px; padding-left: 0; list-style: none; }
.plan-content li {
  margin: 9px 0; padding-left: 16px; position: relative;
}
.plan-content li::before {
  content: ""; position: absolute; left: 0; top: 11px;
  width: 5px; height: 5px; border-radius: 50%; background: var(--primary-subdued);
}
.plan-content strong { font-weight: 600; color: var(--ink); }
.plan-content blockquote {
  border-left: 2px solid var(--hairline); padding-left: 14px;
  color: var(--ink-mute); font-size: 14px; margin: 10px 0;
}

/* ===== 环节工具条 ===== */
.sec-tools { display: flex; align-items: center; gap: var(--s-sm); flex-wrap: wrap; margin: 18px 0 4px; }

/* Markdown 表格（训练指南里用得多） */
.table-wrap { overflow-x: auto; margin: 16px 0 20px; -webkit-overflow-scrolling: touch; }
.plan-content table { border-collapse: collapse; width: 100%; min-width: 420px; font-size: 14px; }
.plan-content th, .plan-content td {
  border-bottom: 1px solid var(--hairline);
  padding: 9px 12px; text-align: left; vertical-align: top; line-height: 1.65;
}
.plan-content th:first-child, .plan-content td:first-child { white-space: nowrap; }
.plan-content thead th {
  background: var(--canvas-soft); color: var(--ink-2);
  font-weight: 600; font-size: 13px; white-space: nowrap;
  border-bottom: 2px solid var(--hairline);
}
.plan-content tbody tr:last-child td { border-bottom: none; }
.plan-content td strong { color: var(--ink); }

/* 动作库里的功能说明 */
.lib-help { margin-top: 12px; font-size: 13px; }
.lib-help > summary { cursor: pointer; color: var(--primary-deep); font-weight: 500; }
.lib-help ul { margin: 10px 0 0; padding-left: 20px; }
.lib-help li { margin-bottom: 8px; line-height: 1.7; color: var(--ink-2); }
.lib-help code { background: var(--canvas-soft); padding: 1px 5px; border-radius: 4px; font-size: 12.5px; }

/* 教案里的即时评分：练完当场点，比事后回动作库找省事得多 */
.sec-rate { display: inline-flex; align-items: center; gap: 6px; flex-wrap: wrap; margin-left: auto; }
.sec-rate-label { font-size: 12.5px; color: var(--ink-mute); }
.sec-rate-hint { flex-basis: 100%; text-align: right; font-size: 12px; color: var(--primary-deep); }

/* 评了「待改善/不好用」之后就地问一句哪里不好——趁刚练完还记得 */
.rate-note { flex-basis: 100%; display: block; margin-top: 8px; }
.rate-note input {
  width: 100%; font-size: 13.5px; padding: 9px 13px;
  border: 1px solid var(--primary-subdued); border-radius: var(--r-md);
  background: var(--canvas);
}
.rate-note input:focus { outline: none; border-color: var(--primary); }
.rate-note-ok { display: block; font-size: 12.5px; font-weight: 500; color: #147a47; }
.mark-full .rate-note { margin-top: 10px; }
.mark-btn.sm { padding: 4px 9px; font-size: 12.5px; gap: 5px; }
.sec-btn {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--hairline); background: var(--canvas); color: var(--ink-mute);
  font-size: 13px; font-weight: 400; padding: 6px 13px;
  border-radius: var(--r-pill); transition: all .15s;
}
.sec-btn:hover { border-color: var(--primary); color: var(--primary); }
.sec-btn .ico { width: 15px; height: 15px; opacity: .7; }
.sec-btn:hover .ico { opacity: 1; }
.sec-editor {
  background: var(--canvas-soft);
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  padding: var(--s-lg);
  margin: var(--s-md) 0 4px;
}
.sec-input { font-size: 14px; resize: vertical; }
.sec-editor-actions { display: flex; align-items: center; gap: 10px; margin-top: 10px; flex-wrap: wrap; }
.sec-editor-actions .btn { padding: 7px 14px; font-size: 13.5px; }
.sec-status { font-size: 13px; color: var(--ink-mute); display: flex; align-items: center; gap: 7px; }
.sec-err { color: var(--ruby); }

/* ===== 逐环节定制 ===== */
#phaseCfgBox {
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  padding: 14px 16px;
  background: var(--canvas-soft);
  margin-bottom: 22px;
}
#phaseCfgBox summary {
  cursor: pointer; font-size: 14px; font-weight: 400;
  color: var(--ink); list-style: none;
}
#phaseCfgBox summary::-webkit-details-marker { display: none; }
#phaseCfgBox summary::before { content: "▸ "; color: var(--ink-mute); }
#phaseCfgBox[open] summary::before { content: "▾ "; }
#phaseCfgBox summary small { font-weight: 400; color: var(--ink-mute); }
#phaseCfgBox[open] summary { margin-bottom: 14px; }
.pcfg-grid { display: flex; flex-direction: column; gap: var(--s-sm); margin-bottom: 10px; }
.pcfg-row { display: flex; gap: var(--s-sm); align-items: center; flex-wrap: wrap; }
.pcfg-label {
  width: 76px; flex-shrink: 0;
  font-size: 10px; font-weight: 400; letter-spacing: .8px;
  text-transform: uppercase; color: var(--ink-mute);
}
.pcfg-sel { flex: 1; min-width: 150px; padding: 7px 10px; font-size: 13.5px; width: auto; }
.pcfg-fmt.bad { border-color: var(--ruby); box-shadow: 0 0 0 3px rgba(234, 34, 97, .1); }

/* ===== 战术板 ===== */
.diagram-wrap {
  background: var(--canvas-soft);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  padding: 14px 14px 6px;
  margin: 14px 0 18px;
  text-align: center;
}
.diagram-wrap svg { display: block; margin: 0 auto; }
.diagram-note { font-size: 13px; font-weight: 500; color: var(--ink-mute); padding: 8px 4px; }
.diagram-fail { color: var(--ink-mute); font-size: 13px; padding: 16px; }
.diagram-pair { display: flex; gap: var(--s-md); flex-wrap: wrap; justify-content: center; }
.diagram-pair figure { flex: 1 1 300px; margin: 0; min-width: 250px; }
.diagram-pair figcaption {
  font-size: 13px; font-weight: 600;
  color: var(--ink-2); margin-bottom: 8px; text-align: center;
}
.diagram-legend {
  display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center;
  background: var(--canvas); border: 1px solid var(--hairline);
  border-radius: var(--r-md); padding: 10px 14px; margin: 0 0 20px;
}
.legend-item { display: inline-flex; align-items: center; gap: 5px; font-size: 12.5px; font-weight: 500; color: var(--ink-mute); }
.legend-item i { font-style: normal; }
.legend-item svg { flex-shrink: 0; }
.code-block {
  background: var(--canvas-soft); border: 1px solid var(--hairline);
  border-radius: var(--r-md); padding: 12px; font-size: 12.5px;
  overflow-x: auto; margin: 8px 0;
}

/* ===== 动作库 ===== */
.library-controls { display: flex; flex-direction: column; gap: var(--s-md); padding: var(--s-xl); }
.lib-actions { display: flex; gap: var(--s-sm); align-items: center; flex-wrap: wrap; }
.lib-count { font-size: 12.5px; font-feature-settings: "tnum"; }
.drill-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(268px, 1fr)); gap: var(--s-md); }
.drill-card {
  background: var(--canvas);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  padding: 18px 18px 40px;      /* 底部留给右下角的评分小图标（26px 图标 + 8px 间距，留够不压字） */
  cursor: pointer;
  position: relative;
  transition: box-shadow .15s, border-color .15s, transform .15s;
}
.drill-card:hover { box-shadow: var(--lift-2); border-color: var(--primary-subdued); transform: translateY(-1px); }
.drill-card.picked { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(83, 58, 253, .1); }
.drill-card.custom { background: linear-gradient(var(--canvas), var(--canvas)) padding-box, var(--canvas); }
.drill-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.drill-name { font-size: 16px; font-weight: 600; color: var(--ink); line-height: 1.4; }
.badge {
  display: inline-block; font-size: 10px; font-weight: 400; letter-spacing: .5px;
  padding: 3px 9px; border-radius: var(--r-pill); white-space: nowrap;
  background: var(--primary-subdued); color: var(--primary-press);
}
.badge-phase { background: var(--brand-dark); color: #fff; }
.drill-meta { font-size: 12px; color: var(--ink-mute); margin: 8px 0 6px; font-feature-settings: "tnum"; }
.drill-goal { font-size: 13.5px; color: var(--ink-2); }
.pick-mark {
  position: absolute; top: 12px; right: 12px;
  display: flex; align-items: center; justify-content: center;
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--primary); color: #fff;
}
.pick-mark .ico { width: 12px; height: 12px; stroke-width: 2.6; }
/* 主线承接语：说清楚这一节在整条主线的哪一步 */
.plan-content .sec-link {
  border-left: 3px solid var(--primary-subdued);
  background: rgba(83, 58, 253, .045);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  padding: 10px 14px;
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-2);
}
.plan-content h1 + .sec-link {
  border-left-color: var(--primary);
  background: rgba(83, 58, 253, .07);
  margin-top: 14px;
  font-size: 14.5px;
}
.plan-content .sec-link strong { color: var(--primary-deep); }

/* 练习评分：三档标记
   卡片上只放小图标（默认很淡，不抢眼），完整带说明的按钮在详情弹窗里 */
.mark-mini {
  position: absolute; right: 10px; bottom: 8px;
  display: flex; gap: 1px;
}
.mark-mini .mm {
  display: flex; align-items: center; justify-content: center;
  width: 26px; height: 26px; padding: 0;
  border: none; background: transparent; border-radius: var(--r-sm);
  color: var(--ink-mute); opacity: .3; transition: all .15s;
}
.mark-mini .mm .ico { width: 15px; height: 15px; }
.mark-mini .mm:hover { opacity: 1; background: var(--canvas-soft); }
.drill-card:hover .mark-mini .mm { opacity: .5; }
/* 选中的那一档亮起本档颜色，另外两个继续压淡 */
.mark-mini .mm.on,
.drill-card:hover .mark-mini .mm.on { opacity: 1; }
.mark-mini .mm[data-m="up"].on   { color: #1fa160; background: rgba(31,161,96,.10); }
.mark-mini .mm[data-m="fix"].on  { color: #d68e14; background: rgba(214,142,20,.12); }
.mark-mini .mm[data-m="hide"].on { color: var(--ruby); background: rgba(234,34,97,.09); }
.mark-mini .mm[data-m="up"]:hover   { color: #1fa160; }
.mark-mini .mm[data-m="fix"]:hover  { color: #d68e14; }
.mark-mini .mm[data-m="hide"]:hover { color: var(--ruby); }

/* 详情弹窗里的完整三档 */
.mark-full {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  margin: 20px 0 4px; padding: 14px 16px;
  background: var(--canvas-soft); border-radius: var(--r-md);
}
.mark-full-label { font-size: 13px; font-weight: 600; color: var(--ink-2); }
.mark-full-hint { flex-basis: 100%; font-size: 12.5px; color: var(--ink-mute); }
.mark-btn {
  display: inline-flex; align-items: center; gap: 5px;
  border: 1px solid var(--hairline); background: var(--canvas);
  border-radius: var(--r-pill); padding: 6px 13px;
  font-size: 13px; color: var(--ink-mute); transition: all .15s; white-space: nowrap;
}
.mark-btn:hover { border-color: var(--primary-subdued); color: var(--ink); }
.mark-btn span { font-weight: 500; }
.mark-btn.on { font-weight: 600; }
.mark-btn[data-m="up"].on   { background: rgba(31,161,96,.10); border-color: #1fa160; color: #147a47; }
.mark-btn[data-m="fix"].on  { background: rgba(214,142,20,.12); border-color: #d68e14; color: #9a650a; }
.mark-btn[data-m="hide"].on { background: rgba(234,34,97,.09);  border-color: var(--ruby); color: #c01450; }
/* 图标常带自己那一档的颜色，没选中时压淡——不用读字也能分清哪个是哪个 */
.mark-btn .ico { width: 15px; height: 15px; opacity: .5; }
.mark-btn[data-m="up"]   .ico { color: #1fa160; }
.mark-btn[data-m="fix"]  .ico { color: #d68e14; }
.mark-btn[data-m="hide"] .ico { color: var(--ruby); }
.mark-btn:hover .ico, .mark-btn.on .ico { opacity: 1; }
.mark-btn.sm .ico { width: 14px; height: 14px; }

.drill-card.mk-up   { border-color: rgba(31,161,96,.45); }
.drill-card.mk-fix  { border-color: rgba(214,142,20,.5); }
.drill-card.mk-hide { border-color: rgba(234,34,97,.4); opacity: .58; }
.drill-card.mk-hide .drill-name { text-decoration: line-through; }

/* 自建练习的小标签，比一个星号说得清楚 */
.tag-own {
  display: inline-block; vertical-align: 2px; margin-right: 6px;
  font-style: normal; font-size: 11px; font-weight: 600; line-height: 1;
  padding: 3px 6px; border-radius: 5px;
  background: rgba(83,58,253,.10); color: var(--primary-deep);
}

/* 热身动作火柴人图 */
.fig { width: 100%; max-width: 240px; height: auto; color: var(--primary); }
.fig .fg-body { stroke: var(--primary); stroke-width: 4.5; stroke-linecap: round; fill: none; }
.fig .fg-far { stroke: var(--primary-subdued, #a9a0f7); stroke-width: 4; stroke-linecap: round; fill: none; opacity: .55; }
.fig .fg-head { fill: var(--primary); }
/* 剪影：实心块，远端浅色 */
.fig .fg-body-fill { fill: var(--primary); stroke: none; }
.fig .fg-far-fill { fill: var(--primary-subdued, #a9a0f7); stroke: none; opacity: .55; }
.fig .fg-shadow { fill: var(--ink); opacity: .10; }
.fig .fg-path { stroke: var(--ruby); stroke-width: 2; stroke-dasharray: 3 3.5;
  fill: none; opacity: .75; stroke-linecap: round; }

.fig-style { display: inline-flex; gap: 4px; }
.style-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin: 0 0 6px; }
.style-row > span { font-size: 13px; font-weight: 600; color: var(--ink-2); }
.fig .fg-ground { stroke: var(--hairline); stroke-width: 2.5; stroke-linecap: round; }
.fig .fg-arrow { stroke: var(--ink-mute); stroke-width: 2; fill: none; marker-end: url(#fgArrow); opacity: .7; }
.fig .fg-travel { stroke: var(--ink-mute); stroke-width: 1.5; stroke-dasharray: 4 4; opacity: .5; }
.fig .fg-cap { fill: var(--ink-mute); font-size: 11px; font-weight: 600; text-anchor: middle; }

.wu-grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.wu-card {
  border: 1px solid var(--hairline); border-radius: var(--r-md);
  background: var(--canvas); padding: 14px 16px 12px;
  display: flex; flex-direction: column; gap: 8px;
}
.wu-head { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.wu-head b { font-size: 15.5px; font-weight: 700; color: var(--ink); }
.wu-head .wu-en { font-size: 12px; color: var(--ink-mute); }
.wu-head .wu-dist {
  margin-left: auto; font-size: 12px; font-weight: 600;
  color: var(--primary-deep); background: rgba(83,58,253,.08);
  padding: 3px 9px; border-radius: var(--r-pill); white-space: nowrap;
}
.wu-fig { display: flex; justify-content: center; background: var(--canvas-soft);
  border-radius: var(--r-sm); padding: 6px 4px 2px; }
.wu-card p { font-size: 13.5px; line-height: 1.65; margin: 0; color: var(--ink-2); }
.wu-card p.wu-key { color: var(--ink); }
.wu-card p.wu-key b, .wu-card p.wu-fix b { color: var(--primary-deep); font-weight: 600; }
.wu-block-head {
  display: flex; align-items: center; gap: 10px;
  font-size: 13px; font-weight: 700; color: var(--ink-mute);
  letter-spacing: .4px; margin: 22px 0 10px;
}
.wu-block-head::after { content: ""; flex: 1; height: 1px; background: var(--hairline); }
.wu-block-head span {
  background: var(--primary); color: #fff; border-radius: var(--r-pill);
  width: 20px; height: 20px; display: inline-flex; align-items: center;
  justify-content: center; font-size: 11.5px;
}
.wu-intro { font-size: 14px; line-height: 1.75; color: var(--ink-2); margin-bottom: 4px; }

/* 教案里的热身动作条 */
.wu-strip { display: grid; gap: 10px; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); margin: 4px 0 14px; }
.wu-mini { border: 1px solid var(--hairline); border-radius: var(--r-sm); padding: 8px 8px 4px;
  background: var(--canvas); text-align: center; }
.wu-mini .fig { max-width: 130px; }
.wu-mini b { display: block; font-size: 13px; font-weight: 600; color: var(--ink); margin-top: 2px; }
.wu-mini small { display: block; font-size: 11.5px; color: var(--ink-mute); }

/* 安装到主屏的提示条 */
.install-bar {
  position: fixed; left: 12px; right: 12px; bottom: calc(12px + env(safe-area-inset-bottom));
  z-index: 70; display: flex; align-items: center; gap: 12px;
  background: var(--ink); color: #fff;
  border-radius: var(--r-md); padding: 12px 14px;
  box-shadow: var(--lift-2); max-width: 560px; margin: 0 auto;
}
.install-text { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.install-text b { font-size: 14px; font-weight: 600; }
.install-text small { font-size: 12.5px; color: rgba(255,255,255,.72); line-height: 1.5; }
.install-act .btn { padding: 8px 16px; font-size: 13.5px; white-space: nowrap; }
.install-x {
  flex: 0 0 auto; display: flex; align-items: center; background: transparent; border: none;
  color: rgba(255,255,255,.55); padding: 4px 2px;
}
.install-x:hover { color: #fff; }

.compose-bar {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
  background: var(--brand-dark); color: #fff;
  border-radius: var(--r-pill); padding: 10px 18px;
  display: flex; align-items: center; gap: var(--s-md);
  box-shadow: var(--lift-2); z-index: 60; flex-wrap: wrap; max-width: 94vw;
  font-size: 14px;
}
.compose-bar select {
  width: auto; padding: 6px 26px 6px 10px; font-size: 13px;
  border-radius: var(--r-sm); border: none; background-color: rgba(255,255,255,.14); color: #fff;
}
.compose-bar select option { color: var(--ink); }
.compose-bar .btn-ghost { color: rgba(255,255,255,.7); }
.compose-bar .btn-ghost:hover { color: #fff; }

/* ===== 弹窗 ===== */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(13, 37, 61, .5);
  display: flex; align-items: center; justify-content: center;
  z-index: 100; padding: 20px; backdrop-filter: blur(2px);
}
.modal {
  background: var(--canvas); border-radius: var(--r-xl);
  max-width: 620px; width: 100%; max-height: 88vh; overflow-y: auto;
  padding: var(--s-xxl); position: relative; box-shadow: var(--lift-2);
}
.modal-wide { max-width: 1060px; }
.modal-close {
  position: absolute; top: 16px; right: 16px;
  display: flex; align-items: center; justify-content: center;
  border: none; background: var(--canvas-soft); color: var(--ink-mute);
  width: 30px; height: 30px; border-radius: 50%;
}
.modal-close .ico { width: 15px; height: 15px; }
.modal-close:hover { background: var(--hairline); }
.modal h3 {
  font-size: 24px; font-weight: 700;
  color: var(--ink); margin-bottom: 6px; padding-right: 40px;
}
.modal dl dt {
  font-size: 10px; font-weight: 400; letter-spacing: .8px; text-transform: uppercase;
  color: var(--ink-mute); margin-top: 16px;
}
.modal dl dd { margin: 5px 0 0; font-size: 14.5px; color: var(--ink-2); }
.modal .modal-actions { margin-top: 24px; display: flex; gap: 10px; flex-wrap: wrap; }

/* ===== 编辑器 ===== */
.ed-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-xl); }
.ed-col { min-width: 0; }
.ed-row { display: flex; gap: 10px; flex-wrap: wrap; }
.ed-row .field { flex: 1; min-width: 90px; }
.ed-chips .chip { font-size: 13px; padding: 5px 12px; }
.ed-tools { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 10px; }
.ed-tool {
  border: 1px solid var(--hairline); background: var(--canvas); color: var(--ink-2);
  padding: 5px 11px; border-radius: var(--r-pill); font-size: 12.5px; transition: all .15s;
}
.ed-tool:hover { border-color: var(--primary-subdued); }
.ed-tool.on { background: var(--primary); border-color: var(--primary); color: #fff; }
.ed-tool[data-k="p:A"].on { background: var(--primary); border-color: var(--primary); }
.ed-tool[data-k="p:B"].on { background: var(--ruby); border-color: var(--ruby); }
.ed-tool[data-k="p:N"].on { background: #e8a33d; border-color: #e8a33d; color: #3a2a08; }
.ed-tool[data-k="p:GK"].on { background: var(--brand-dark); border-color: var(--brand-dark); }
.ed-board { background: var(--canvas-soft); border: 1px solid var(--hairline); border-radius: var(--r-lg); padding: 10px; text-align: center; }
.ed-board .diagram-wrap { margin: 0; border: none; background: transparent; padding: 0; }
.ed-hint { font-size: 12.5px; color: var(--ink-mute); margin: 8px 0 10px; min-height: 18px; }
.ed-actions {
  display: flex; gap: 10px; align-items: center;
  margin-top: var(--s-xl); padding-top: var(--s-lg); border-top: 1px solid var(--hairline);
}
.ed-msg { font-size: 13.5px; }
.ed-err { color: var(--ruby); }

/* ===== 我的教案 ===== */
.plans-list { display: grid; gap: var(--s-md); }
.plan-item {
  background: var(--canvas); border: 1px solid var(--hairline);
  border-radius: var(--r-lg); padding: 18px 20px;
  display: flex; justify-content: space-between; align-items: center; gap: var(--s-md);
  cursor: pointer; transition: box-shadow .15s, border-color .15s;
}
.plan-item:hover { box-shadow: var(--lift-2); border-color: var(--primary-subdued); }
.plan-item-title { font-size: 16px; font-weight: 600; color: var(--ink); }
.plan-item-sub { font-size: 12.5px; color: var(--ink-mute); margin-top: 4px; font-feature-settings: "tnum"; }
.plan-item .btn, .plan-item .badge { flex-shrink: 0; }
.empty-tip { text-align: center; color: var(--ink-mute); padding: 48px 24px; }
.samples-head {
  font-size: 10px; font-weight: 400; letter-spacing: 1px; text-transform: uppercase;
  color: var(--ink-mute); margin: 32px 0 12px;
}

/* ===== 设置 ===== */
.key-row { display: flex; gap: var(--s-sm); }
.key-row input { flex: 1; }
.save-ok { color: var(--primary); font-size: 14px; margin-left: 10px; }
.small-list { margin-left: 18px; }
.small-list li { margin: 6px 0; }

.app-footer {
  text-align: center; color: var(--ink-mute); font-size: 11px;
  padding: 24px 0 40px;
}

/* ===== 打印 ===== */
#print-root { display: none; }
@media print {
  body.printing > *:not(#print-root) { display: none !important; }
  body.printing #print-root { display: block; padding: 0; }
  body.printing { background: #fff; }
  #print-root .sec-tools, #print-root .sec-editor { display: none !important; }
  #print-root h1 { font-size: 19pt; font-weight: 700; color: #0d253d; margin-bottom: 10pt; }
  #print-root h2 { font-size: 11.5pt; font-weight: 700; color: #533afd; border-bottom: 1pt solid #b9b9f9; padding-bottom: 3pt; margin: 14pt 0 6pt; }
  #print-root h3 { font-size: 13pt; font-weight: 600; margin: 10pt 0 4pt; }
  #print-root p, #print-root li { font-size: 10pt; line-height: 1.5; }
  #print-root ul { margin-left: 12pt; }
  #print-root .diagram-wrap { background: #f6f9fc; border: .5pt solid #e3e8ee; page-break-inside: avoid; text-align: center; padding: 6pt; margin: 6pt 0; border-radius: 6pt; }
  #print-root .diagram-wrap svg { max-width: 330pt; height: auto; }
  #print-root .diagram-note { font-size: 8.5pt; color: #64748d; padding-top: 3pt; }
  #print-root .diagram-pair { display: flex; gap: 8pt; page-break-inside: avoid; }
  #print-root .diagram-pair figure { flex: 1; margin: 0; }
  #print-root .diagram-pair figcaption { font-size: 8pt; text-align: center; margin-bottom: 2pt; }
  #print-root .diagram-legend { display: flex; flex-wrap: wrap; gap: 6pt 10pt; padding: 4pt 0; border: none; }
  #print-root .legend-item { font-size: 8.5pt; color: #444; display: inline-flex; align-items: center; gap: 3pt; }
}

/* ===== 响应式 ===== */
@media (max-width: 820px) { .ed-grid { grid-template-columns: 1fr; } }

@media (max-width: 640px) {
  .app-main { padding: 18px 14px 40px; }
  .card { padding: 18px 16px; border-radius: var(--r-lg); }
  .field { margin-bottom: 18px; }
  .mode-switch { grid-template-columns: 1fr; gap: 8px; }
  .mode-option { padding: 12px; }
  .result-toolbar { flex-direction: column; align-items: stretch; gap: 10px; }
  .toolbar-actions { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
  .toolbar-actions .btn { padding: 10px 6px; font-size: 13px; }
  .plan-content { font-size: 15px; }
  .plan-content h1 { font-size: 24px; }
  .plan-content h2 { font-size: 15px; margin: 30px 0 14px; }
  .plan-content h3 { font-size: 18px; margin: 20px 0 8px; }
  .header-inner { padding: 16px 16px 0; }
  .logo { font-size: 20px; }
  .tabs { padding: 0 16px; }
  .notes-block { padding: 2px 16px 18px; }
  .diagram-wrap { padding: 10px 8px 4px; }

  /* 芯片更紧凑，主题选择不至于占满整屏 */
  .chip { font-size: 13.5px; padding: 7px 12px; }
  .tgroup { margin-bottom: 12px; }

  /* 阶段标签换短名，六个刚好排一行不换行 */
  .seg-tabs .g-full { display: none; }
  .seg-tabs .g-short { display: inline; }
  .seg-tabs button { padding: 9px 6px; font-size: 13px; }

  /* 主题卡片单列铺满，一屏能看清四五个 */
  .theme-grid { grid-template-columns: 1fr; gap: 6px; }
  .theme-item { padding: 9px 30px 9px 12px; gap: 1px; }
  .theme-item b { font-size: 14.5px; line-height: 1.35; }
  .theme-item small { font-size: 12.5px; line-height: 1.45; }
  .theme-item::after { top: 10px; }

  /* 分段控件铺满一行 */
  .seg { display: flex; width: 100%; }
  .seg button { flex: 1; padding: 9px 4px; font-size: 13.5px; }
  .seg-unit { display: none; }
  #fLevel button { font-size: 13px; }

  /* 生成按钮吸底，随时可点 */
  .btn-lg {
    position: sticky; bottom: 12px; z-index: 30;
    box-shadow: 0 6px 20px rgba(83, 58, 253, .28);
  }
  body.has-install .btn-lg { bottom: calc(var(--install-h, 76px) + 24px); }
  body.has-install .compose-bar { bottom: calc(var(--install-h, 76px) + 24px); }
  body.has-install .app-footer { padding-bottom: calc(var(--install-h, 76px) + 20px); }

  /* 标签栏溢出时右侧渐隐，提示可横滑 */
  .tabs { -webkit-mask-image: linear-gradient(90deg, #000 88%, transparent); }
  .tab { padding: 10px 12px 12px; font-size: 14.5px; }

  .compose-bar { padding: 10px 14px; gap: 8px; font-size: 13px; bottom: 12px; }
  .modal { padding: 20px 16px; border-radius: var(--r-lg); }
  .modal h3 { font-size: 21px; }
  .drill-grid { grid-template-columns: 1fr; }
  /* 四个按钮挤一行会被压成竖排文字，手机上改成两列 */
  .lib-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
  .lib-actions .btn { width: 100%; padding: 11px 8px; font-size: 13px; gap: 6px; }
  .lib-actions .btn .ico { width: 15px; height: 15px; }
  .lib-actions .lib-count { grid-column: 1 / -1; }
}