/* ============================================================
   main-window.css — 主程序窗布局与样式
   ============================================================ */

.app {
  display: flex;
  height: 100vh;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(255,87,34,0.06), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(0,229,255,0.04), transparent 60%),
    var(--bg-app);
}

/* ====== 左侧导航 ====== */
.sidebar {
  width: var(--nav-width-text);
  flex-shrink: 0;
  background: var(--bg-deep);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  padding: var(--sp-3) var(--sp-2);
}
.brand {
  display: flex; align-items: center; gap: 10px;
  padding: var(--sp-2) var(--sp-3) var(--sp-4);
}
.brand-logo {
  width: 32px; height: 32px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), #ff8a3d);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 16px; color: #fff;
  box-shadow: 0 4px 12px var(--accent-glow);
}
.brand-name { font-weight: 700; font-size: 14px; letter-spacing: 0.02em; }
.brand-sub { font-size: 9.5px; color: var(--text-tertiary); letter-spacing: 0.1em; text-transform: uppercase; }

.nav { display: flex; flex-direction: column; gap: 2px; margin-top: var(--sp-2); }
.nav-item {
  display: flex; align-items: center; gap: 12px;
  padding: 9px 12px; border-radius: var(--r-sm);
  color: var(--text-secondary); font-size: 13px; font-weight: 500;
  transition: all var(--dur-fast) var(--ease); cursor: pointer;
  position: relative;
}
.nav-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.nav-item.active { background: var(--accent-soft); color: var(--accent); }
.nav-item.active::before {
  content: ""; position: absolute; left: -8px; top: 50%; transform: translateY(-50%);
  width: 3px; height: 18px; background: var(--accent); border-radius: 0 2px 2px 0;
}
.nav-item .icon { width: 18px; height: 18px; }
.nav-spacer { flex: 1; }

.nav-bottom {
  display: flex; flex-direction: column; gap: var(--sp-2);
  padding-top: var(--sp-3); border-top: 1px solid var(--border);
}
.nav-user {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px; border-radius: var(--r-sm);
  background: var(--bg-surface); cursor: pointer;
  transition: background var(--dur-fast) var(--ease);
}
.nav-user:hover { background: var(--bg-surface-2); }

/* ====== 侧边栏「实时驾驶助手」开关按钮 ====== */
.assist-launch {
  display: flex; align-items: center; gap: 11px;
  padding: 11px 12px; margin-bottom: var(--sp-3);
  border-radius: var(--r-md);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all var(--dur) var(--ease);
  position: relative;
}
.assist-launch:hover { background: var(--bg-surface-2); border-color: var(--border-strong); transform: translateY(-1px); }
.assist-launch.on {
  background: linear-gradient(135deg, var(--accent), #ff7a3d);
  border-color: var(--accent);
  box-shadow: 0 6px 20px var(--accent-glow);
}
.assist-launch .al-icon {
  width: 34px; height: 34px; border-radius: 9px;
  background: var(--accent-soft); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; transition: all var(--dur) var(--ease);
}
.assist-launch.on .al-icon { background: rgba(255, 255, 255, 0.22); color: #fff; }
.assist-launch .al-text { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.assist-launch .al-title { font-size: 12.5px; font-weight: 600; color: var(--text-primary); transition: color var(--dur); }
.assist-launch .al-sub { font-size: 10px; color: var(--text-tertiary); transition: color var(--dur); }
.assist-launch.on .al-title, .assist-launch.on .al-sub { color: #fff; }
.assist-launch.on .al-sub { color: rgba(255, 255, 255, 0.85); }
.assist-launch .dot { flex-shrink: 0; }

/* ====== 主内容区 ====== */
.main {
  flex: 1; display: flex; flex-direction: column;
  min-width: 0;
}
.titlebar {
  height: var(--titlebar-h); flex-shrink: 0;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 var(--sp-5);
  background: var(--bg-app);
  border-bottom: 1px solid var(--border);
  -webkit-app-region: drag;
}
.titlebar .crumb { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--text-secondary); }
.titlebar .crumb .cur { color: var(--text-primary); font-weight: 600; }
.win-controls { display: flex; align-items: center; gap: 4px; -webkit-app-region: no-drag; }
.win-btn {
  width: 28px; height: 28px; border-radius: var(--r-xs);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-secondary); transition: all var(--dur-fast) var(--ease);
}
.win-btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.win-btn.close:hover { background: var(--danger); color: #fff; }

.content {
  flex: 1; overflow-y: auto; overflow-x: hidden;
  padding: var(--sp-6) var(--sp-6) var(--sp-12);
}

/* 页面通用容器 */
.page { max-width: 1240px; margin: 0 auto; }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: var(--sp-6); }
.page-title { font-size: 22px; font-weight: 700; letter-spacing: -0.01em; }
.page-sub { font-size: 12.5px; color: var(--text-secondary); margin-top: 2px; }

.section-title {
  display: flex; align-items: center; justify-content: space-between;
  margin: var(--sp-6) 0 var(--sp-3);
}
.section-title h3 { font-size: 14px; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.section-title .more { font-size: 12px; color: var(--text-secondary); cursor: pointer; }
.section-title .more:hover { color: var(--accent); }

/* ====== 状态条（主页顶部）====== */
.status-bar {
  display: flex; align-items: center; gap: var(--sp-3);
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--r-md); padding: var(--sp-3) var(--sp-4);
  margin-bottom: var(--sp-6);
}
.status-session {
  display: flex; align-items: center; gap: 10px; flex: 1;
}
.game-badge {
  display: flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: var(--r-xs);
  background: var(--bg-surface-3); font-size: 11.5px; font-weight: 600;
}
.session-meta { display: flex; gap: var(--sp-4); font-size: 12px; }
.session-meta .kv { display: flex; flex-direction: column; }
.session-meta .k { font-size: 10px; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.05em; }
.session-meta .v { font-size: 13px; font-weight: 600; }

/* ====== 热力图 ====== */
.heatmap-card { padding: var(--sp-5); }
.heatmap-card .hm-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--sp-4); }

/* ====== 主页头图 Hero ====== */
.home-hero {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  margin-bottom: var(--sp-6);
  border: 1px solid var(--border-strong);
  min-height: 220px;
  background: linear-gradient(135deg, #14181f 0%, #1a1410 60%, #1d1108 100%);
}
.hero-bg { position: absolute; inset: 0; }
.hero-track { position: absolute; right: -40px; top: -20px; width: 110%; height: 130%; opacity: 0.9; }
.hero-glow {
  position: absolute; left: -10%; top: -30%;
  width: 60%; height: 160%;
  background: radial-gradient(ellipse at center, rgba(255,87,34,0.35), transparent 60%);
  filter: blur(20px);
}
.hero-content {
  position: relative; z-index: 2;
  padding: var(--sp-10) var(--sp-8);
  min-height: 220px;
}
.hero-left { max-width: 560px; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 10px; border-radius: var(--r-pill);
  background: var(--accent-soft); color: var(--accent);
  font-size: 11px; font-weight: 600; letter-spacing: 0.03em;
  margin-bottom: var(--sp-3);
}
.hero-title {
  font-size: 30px; font-weight: 800; line-height: 1.15;
  letter-spacing: -0.01em; margin-bottom: var(--sp-3);
}
.hero-sub { font-size: 13px; color: var(--text-secondary); margin-bottom: var(--sp-5); }
.hero-stats { display: flex; align-items: center; gap: var(--sp-4); }
.hs-cell { display: flex; flex-direction: column; }
.hs-val { font-size: 22px; font-weight: 700; line-height: 1; }
.hs-val.accent { color: var(--accent); }
.hs-k { font-size: 10.5px; color: var(--text-tertiary); margin-top: 4px; text-transform: uppercase; letter-spacing: 0.04em; }
.hs-sep { width: 1px; height: 30px; background: var(--border); }

@media (max-width: 1000px) {
  .hero-content { padding: var(--sp-8) var(--sp-6); }
}

/* ====== 主页顶部布局 ====== */
.home-top {
  display: grid;
  grid-template-columns: 1.55fr 1fr;
  gap: var(--sp-5);
  align-items: stretch;
  margin-bottom: var(--sp-6);
}
.home-top-main { display: flex; flex-direction: column; }
.home-top-side { display: flex; flex-direction: column; }
.quick-card {
  flex: 1; padding: var(--sp-5);
  display: flex; flex-direction: column;
}
.qs-grid {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-4);
  align-content: center;
}
.qs-cell { display: flex; flex-direction: column; gap: 4px; }
.qs-val { font-size: 28px; font-weight: 700; line-height: 1.1; }
.qs-val.accent { color: var(--accent); font-size: 24px; }
.qs-unit { font-size: 13px; color: var(--text-tertiary); margin-left: 3px; font-weight: 500; }
@media (max-width: 1000px) {
  .home-top { grid-template-columns: 1fr; }
}

/* ====== 最近记录卡片 ====== */
.record-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-4); }
.record-card {
  padding: var(--sp-4); cursor: pointer;
  transition: all var(--dur) var(--ease);
  display: flex; flex-direction: column; gap: var(--sp-3);
}
.record-card:hover { border-color: var(--border-accent); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.rc-head { display: flex; align-items: center; justify-content: space-between; }
.rc-tags { display: flex; gap: 5px; }
.rc-best-block { display: flex; align-items: baseline; gap: 8px; }
.rc-best { font-size: 26px; font-weight: 800; color: var(--accent); line-height: 1; }
.rc-best-label { font-size: 10.5px; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.05em; }
.rc-meta { display: flex; flex-direction: column; gap: 7px; }
.rc-field { display: flex; align-items: center; gap: 8px; min-width: 0; flex: 1; font-size: 12px; }
.rc-field-row { display: flex; gap: var(--sp-4); }
.rc-ic { width: 14px; height: 14px; flex-shrink: 0; display: inline-flex; color: var(--text-tertiary); }
.rc-ic .icon { width: 14px; height: 14px; }
.rc-val { color: var(--text-secondary); }

/* ====== 练习记录列表 ====== */
.filters {
  display: flex; align-items: center; gap: var(--sp-2); flex-wrap: wrap;
  margin-bottom: var(--sp-4);
}
.filter-select {
  height: 32px; padding: 0 28px 0 12px;
  background: var(--bg-surface-2); border: 1px solid var(--border);
  border-radius: var(--r-sm); color: var(--text-primary); font-size: 12.5px;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23a8b0bd' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 10px center;
}
.filter-select:focus { outline: none; border-color: var(--border-accent); }
.filter-select:disabled, .filter-select.is-disabled {
  opacity: 0.45; cursor: not-allowed; background-image: none;
}

.rec-list { display: flex; flex-direction: column; gap: var(--sp-2); }
.rec-row.head {
  font-size: 11px; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.05em;
  background: var(--bg-surface); border: 1px solid var(--border-strong);
  border-radius: var(--r-sm); cursor: default;
}
.rec-row.head:hover { border-color: var(--border-strong); background: var(--bg-surface); }
.rec-row {
  display: grid;
  grid-template-columns: 56px 2.2fr 1fr 1.1fr 1.2fr 1.3fr;
  align-items: center; gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--r-sm); cursor: pointer;
  transition: all var(--dur-fast) var(--ease);
}
.rec-row:hover { border-color: var(--border-strong); background: var(--bg-surface-2); }
.rec-row .lap-best { font-size: 16px; font-weight: 700; color: var(--accent); }

/* ====== 分页 ====== */
.pager {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: var(--sp-5); padding: var(--sp-3) var(--sp-2);
}
.pg-controls { display: flex; align-items: center; gap: 4px; }
.pg-btn {
  min-width: 30px; height: 30px; padding: 0 8px;
  border-radius: var(--r-sm);
  background: var(--bg-surface); border: 1px solid var(--border);
  color: var(--text-secondary); font-size: 12.5px; font-weight: 500;
  display: inline-flex; align-items: center; justify-content: center;
  transition: all var(--dur-fast) var(--ease); cursor: pointer;
}
.pg-btn:hover:not(:disabled):not(.active) { background: var(--bg-surface-2); border-color: var(--border-strong); color: var(--text-primary); }
.pg-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.pg-btn:disabled { opacity: 0.35; cursor: not-allowed; }
.pg-ellipsis { padding: 0 4px; color: var(--text-tertiary); }

/* ====== 排行榜 ====== */
.lb-row {
  display: grid;
  grid-template-columns: 60px 2fr 1.2fr 1fr 1fr 1fr 0.8fr 0.8fr;
  align-items: center; gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  border-bottom: 1px solid var(--border);
  transition: background var(--dur-fast) var(--ease);
}
.lb-row.head { font-size: 11px; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.05em; background: var(--bg-surface); border-radius: var(--r-sm) var(--r-sm) 0 0; border-bottom: 1px solid var(--border-strong); }
.lb-row:not(.head):hover { background: var(--bg-surface); }
.lb-rank { font-size: 16px; font-weight: 700; font-family: var(--font-dig); }
.lb-rank.top1 { color: #ffd700; } .lb-rank.top2 { color: #c0c0c0; } .lb-rank.top3 { color: #cd7f32; }
.lb-row.mine { background: var(--accent-soft); }

/* ====== 设置 ====== */
.settings-layout { display: grid; grid-template-columns: 200px 1fr; gap: var(--sp-6); }
.set-nav { display: flex; flex-direction: column; gap: 2px; position: sticky; top: 0; }
.set-nav-item {
  padding: 9px 12px; border-radius: var(--r-sm);
  font-size: 13px; color: var(--text-secondary); cursor: pointer;
  transition: all var(--dur-fast) var(--ease);
  display: flex; align-items: center; gap: 10px;
}
.set-nav-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.set-nav-item.active { background: var(--bg-surface-2); color: var(--text-primary); font-weight: 600; }
.set-group { margin-bottom: var(--sp-6); }
.set-group h4 { font-size: 13px; margin-bottom: var(--sp-3); color: var(--text-secondary); }
.set-group-note { font-size: 11.5px; color: var(--text-tertiary); line-height: 1.6; margin-bottom: var(--sp-3); max-width: 460px; }
.about-grid { display: flex; flex-direction: column; }
.about-row { display: flex; padding: 8px 0; border-bottom: 1px solid var(--border); font-size: 12.5px; }
.about-row:last-child { border-bottom: none; }
.about-k { width: 120px; color: var(--text-tertiary); flex-shrink: 0; }
.about-v { color: var(--text-primary); }
.set-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--sp-3) 0; border-bottom: 1px solid var(--border);
}
.set-row:last-child { border-bottom: none; }
.set-label { font-size: 13px; }
.set-desc { font-size: 11.5px; color: var(--text-tertiary); margin-top: 2px; max-width: 420px; }

/* 滑块 */
.slider {
  -webkit-appearance: none; appearance: none;
  width: 160px; height: 4px; border-radius: 2px;
  background: var(--bg-surface-3); outline: none;
}
.slider::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--accent); cursor: pointer;
  box-shadow: 0 0 0 4px rgba(255,87,34,0.15);
}

/* 设置分组标题（带右侧操作） */
.set-group-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--sp-3); }
.set-group-head h4 { font-size: 13px; }
.res-page-head { margin-bottom: var(--sp-5); }
.res-page-head h4 { font-size: 15px; }
.switch-wrap { display: flex; align-items: center; gap: 8px; }

/* —— 资源管理 —— */
/* 折叠通用 */
.res-chevron { display: inline-flex; transition: transform var(--dur) var(--ease); color: var(--text-tertiary); }
.res-chevron .icon { width: 14px; height: 14px; }
.collapsed > .res-game-head .res-chevron,
.collapsed > .res-cat-title .res-chevron { transform: rotate(-90deg); }
.res-game.collapsed > .res-game-body,
.res-cat.collapsed > .res-cat-body { display: none; }

/* 赛道地图资源（整体一张卡） */
.res-trackmap {
  display: flex; align-items: center; gap: var(--sp-4);
  padding: var(--sp-4) var(--sp-5);
}
.res-trackmap .rtm-icon {
  width: 48px; height: 48px; border-radius: var(--r-md); flex-shrink: 0;
  background: var(--accent-soft); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
}
.res-trackmap .rtm-info { flex: 1; }
.res-trackmap .rtm-title { font-size: 14px; font-weight: 600; }
.res-trackmap .rtm-meta { font-size: 12px; color: var(--text-secondary); margin-top: 3px; }

/* AI 模型资源 - 按游戏分组 */
.res-game {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--r-md); padding: var(--sp-4);
  margin-bottom: var(--sp-3);
}
.res-game-head {
  font-size: 14px; font-weight: 700; padding-bottom: var(--sp-3);
  margin-bottom: var(--sp-3); border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 8px;
  cursor: pointer; user-select: none; transition: color var(--dur-fast) var(--ease);
}
.res-game-head:hover { color: var(--accent); }
.res-game.collapsed > .res-game-head { margin-bottom: 0; border-bottom-color: transparent; padding-bottom: 0; }
.res-cat { margin-bottom: var(--sp-4); }
.res-cat:last-child { margin-bottom: 0; }
.res-cat-title {
  font-size: 12.5px; font-weight: 600; color: var(--text-primary);
  margin-bottom: var(--sp-2); display: flex; align-items: center; gap: 6px;
  cursor: pointer; user-select: none; padding: 6px 8px; margin-left: -8px; border-radius: var(--r-xs);
  transition: background var(--dur-fast) var(--ease);
}
.res-cat-title:hover { background: var(--bg-hover); }
.res-cat.collapsed > .res-cat-title { margin-bottom: 0; }
.res-cat-title .dim { font-weight: 400; }

/* 独立模型条目（按赛道） */
.res-ind-list, .res-agg-list { display: flex; flex-direction: column; gap: var(--sp-2); }
.res-ind {
  display: flex; align-items: center; gap: var(--sp-3);
  padding: var(--sp-3); background: var(--bg-surface-2) !important;
  border-color: var(--border) !important;
}
.res-ind-main { flex: 1; min-width: 0; }
.res-ind-track { font-size: 13px; font-weight: 600; display: flex; align-items: center; gap: 6px; margin-bottom: 6px; }
.res-ind-cars { display: flex; flex-wrap: wrap; gap: 4px; }
.res-ind-cars .tag { font-size: 10px; height: 16px; padding: 0 6px; }
.res-ind-side {
  display: flex; flex-direction: column; align-items: flex-end; gap: 6px;
  flex-shrink: 0; min-width: 96px;
}

/* 聚合模型条目（资源包） */
.res-agg {
  display: flex; align-items: center; gap: var(--sp-3);
  padding: var(--sp-3); background: var(--bg-surface-2) !important;
  border-color: var(--border) !important;
}
.res-agg-main { flex: 1; min-width: 0; }
.res-agg-name { font-size: 13px; font-weight: 600; display: flex; align-items: center; gap: 6px; margin-bottom: 5px; color: var(--accent); }
.res-agg-sub { font-size: 11.5px; color: var(--text-secondary); line-height: 1.7; }
.res-agg-side {
  display: flex; flex-direction: column; align-items: flex-end; gap: 6px;
  flex-shrink: 0; min-width: 96px;
}

.res-status { font-size: 10.5px; padding: 2px 7px; border-radius: var(--r-xs); align-self: flex-end; }
.res-status.updated { background: rgba(46,204,113,0.15); color: var(--success); }
.res-status.outdated { background: rgba(255,167,38,0.15); color: var(--warning); }
.res-status.notdl { background: var(--bg-surface-3); color: var(--text-secondary); }
.res-status.latest { background: rgba(77,171,247,0.12); color: var(--info); }

/* ====== 实用工具 ====== */
.tool-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-4); }
.tool-card {
  padding: var(--sp-5); cursor: pointer; min-height: 140px;
  display: flex; flex-direction: column; gap: var(--sp-3);
  transition: all var(--dur) var(--ease);
}
.tool-card:hover { border-color: var(--border-accent); transform: translateY(-2px); }
.tool-icon {
  width: 44px; height: 44px; border-radius: var(--r-md);
  background: var(--accent-soft); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
}
.tool-icon .icon { width: 24px; height: 24px; }

/* ====== AC 行车线替换 ====== */
.ace-toolbar { display: flex; align-items: center; gap: var(--sp-3); margin-bottom: var(--sp-4); }
.ace-list { display: flex; flex-direction: column; gap: var(--sp-3); }
.ace-track { padding: 0; overflow: hidden; }
.ace-track-head {
  display: flex; align-items: center; gap: 10px;
  padding: var(--sp-4) var(--sp-5); cursor: pointer; user-select: none;
  transition: background var(--dur-fast) var(--ease);
}
.ace-track-head:hover { background: var(--bg-surface-2); }
.ace-track-head b { font-size: 14px; }
.ace-track.collapsed .ace-track-head { border-bottom: none; }
.ace-track.collapsed .ace-track-body { display: none; }
.ace-track-body { padding: 0 var(--sp-5) var(--sp-3); display: flex; flex-direction: column; gap: 6px; }
.ace-car {
  display: flex; align-items: center; gap: 10px;
  padding: 10px var(--sp-3); background: var(--bg-surface-2); border-radius: var(--r-sm);
}
.ace-car-name { flex: 1; font-size: 13px; display: flex; align-items: center; gap: 6px; }