/* ==========================================================================
   anskbench 样式
   设计原则：简洁明了、锐利边角（全局 border-radius: 0）、双主题
   ========================================================================== */

:root {
  --bg: #f7f7f9;
  --fg: #16161a;
  --card: #ffffff;
  --border: #16161a;
  --muted: #5c5c66;
  --accent: #3b4fd8;
  --stripe: #efeff3;
  --track: #dcdce2;
  --fail: #c22525;
  --th-bg: #16161a;
  --th-fg: #f7f7f9;
}

[data-theme="dark"] {
  --bg: #121216;
  --fg: #e6e6ec;
  --card: #1a1a20;
  --border: #d8d8e0;
  --muted: #9a9aa6;
  --accent: #8c9bff;
  --stripe: #222228;
  --track: #2e2e36;
  --fail: #ff7070;
  --th-bg: #e6e6ec;
  --th-fg: #121216;
}

/* ---------- 基础 ---------- */

* {
  box-sizing: border-box;
  border-radius: 0; /* 全局锐利边角 */
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.65;
  transition: background .2s ease, color .2s ease;
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 20px;
}

.mono,
.num {
  font-family: "Cascadia Mono", "JetBrains Mono", Consolas, "Courier New", monospace;
  font-variant-numeric: tabular-nums;
}

.note {
  color: var(--muted);
  font-size: 13px;
}

/* ---------- 顶栏 ---------- */

.site-header {
  background: var(--card);
  border-bottom: 2px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 58px;
}

.brand-name {
  font-family: "Cascadia Mono", Consolas, monospace;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: .5px;
}

.brand-sub {
  margin-left: 12px;
  color: var(--muted);
  font-size: 13px;
}

.btn-square {
  font: inherit;
  font-size: 13px;
  padding: 6px 14px;
  background: var(--card);
  color: var(--fg);
  border: 1px solid var(--border);
  cursor: pointer;
}

.btn-square:hover {
  background: var(--fg);
  color: var(--bg);
}

/* ---------- 卡片区块 ---------- */

.card {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 24px 28px;
  margin: 24px 0;
}

.card h2 {
  font-size: 17px;
  border-left: 4px solid var(--accent);
  padding-left: 10px;
  margin-bottom: 14px;
}

.card h3 {
  font-size: 14px;
  margin: 18px 0 8px;
}

.card p { margin: 8px 0; }
.card ol { padding-left: 22px; }
.card li { margin: 4px 0; }

/* ---------- 目标答案 / 公式 ---------- */

.target-box {
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  background: var(--stripe);
  padding: 10px 14px;
  margin: 10px 0;
}

.formula {
  border: 1px solid var(--border);
  background: var(--stripe);
  padding: 14px 18px;
  font-family: "Cascadia Mono", Consolas, monospace;
  font-size: 14px;
  line-height: 1.9;
  overflow-x: auto;
  white-space: nowrap;
}

/* ---------- 候选角色 ---------- */

.bands {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.band {
  border: 1px solid var(--border);
}

.band h4 {
  background: var(--th-bg);
  color: var(--th-fg);
  font-size: 14px;
  padding: 6px 12px;
}

.band ul {
  list-style: none;
  padding: 10px 12px;
}

.band li {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  padding: 2px 0;
}

.band li .role {
  color: var(--muted);
  font-family: "Cascadia Mono", Consolas, monospace;
  font-size: 13px;
}

/* ---------- 计分曲线 ---------- */

#score-curve {
  display: block;
  width: 100%;
  height: auto;
}

#score-curve .grid {
  stroke: var(--border);
  stroke-width: .5;
  opacity: .35;
}

#score-curve .axis {
  stroke: var(--border);
  stroke-width: 1;
}

#score-curve .axis-label {
  fill: var(--muted);
  font-size: 11px;
  font-family: "Cascadia Mono", Consolas, monospace;
}

#score-curve .axis-title {
  fill: var(--fg);
  font-size: 12px;
}

#score-curve .curve {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2;
}

#score-curve .curve-dot {
  fill: var(--accent);
}

#score-curve .model-dot {
  fill: var(--fg);
  stroke: var(--card);
  stroke-width: 1.5;
}

#score-curve .dot-badge {
  fill: var(--accent);
  font-family: "Cascadia Mono", Consolas, monospace;
  font-size: 13px;
  font-weight: 700;
}

#score-curve .curve-dot,
#score-curve .model-dot {
  pointer-events: none; /* 事件统一由 hit-area 接收 */
}

#score-curve .hit-area {
  fill: #000;
  fill-opacity: 0;
  pointer-events: all;
  cursor: pointer;
}

#curve-section {
  position: relative;
}

.curve-tip {
  position: absolute;
  display: none;
  pointer-events: none;
  background: var(--fg);
  color: var(--bg);
  border: 1px solid var(--border);
  padding: 4px 10px;
  font-size: 12px;
  font-family: "Cascadia Mono", Consolas, monospace;
  white-space: pre-line;
  line-height: 1.6;
  z-index: 10;
}

/* ---------- 排行榜 ---------- */

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--border);
  font-size: 14px;
}

th, td {
  border: 1px solid var(--border);
  padding: 8px 12px;
  text-align: left;
}

thead th {
  background: var(--th-bg);
  color: var(--th-fg);
  font-weight: 600;
  white-space: nowrap;
}

thead th[data-key] {
  cursor: pointer;
  user-select: none;
}

thead th.sorted-asc::after  { content: " ▲"; font-size: 10px; }
thead th.sorted-desc::after { content: " ▼"; font-size: 10px; }

tbody tr:hover {
  background: var(--stripe);
}

td.num, th.num {
  font-family: "Cascadia Mono", Consolas, monospace;
  text-align: right;
}

td.rank {
  font-weight: 700;
}

td.model-name {
  font-weight: 600;
  white-space: nowrap;
}

td.fail {
  color: var(--fail);
  font-weight: 600;
}

.score-cell {
  min-width: 170px;
  white-space: nowrap;
}

.score-num {
  display: inline-block;
  min-width: 46px;
  text-align: right;
  margin-right: 10px;
  font-weight: 700;
}

.bar {
  display: inline-block;
  width: 90px;
  height: 10px;
  background: var(--track);
  vertical-align: middle;
}

.bar-fill {
  display: block;
  height: 100%;
  background: var(--accent);
}

/* ---------- 页脚 ---------- */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 16px 0;
  margin-top: 24px;
  color: var(--muted);
  font-size: 13px;
}

/* ---------- 响应式 ---------- */

@media (max-width: 640px) {
  .bands { grid-template-columns: 1fr; }
  .card { padding: 18px 16px; }
  .brand-sub { display: none; }
}