@font-face {
  font-family: 'Smiley Sans';
  src: url(fonts/smiley-sans-oblique.woff2) format('woff2');
  font-display: swap;
}

/* 英文和数字字体放在自己服务器上：谷歌字体在国内常连不上，会让每个页面卡到超时才显示。中文用系统自带的苹方 / 微软雅黑。 */
@font-face { font-family: 'Inter'; src: url(/fonts/inter-latin-400.woff2) format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Inter'; src: url(/fonts/inter-latin-500.woff2) format('woff2'); font-weight: 500; font-display: swap; }
@font-face { font-family: 'Inter'; src: url(/fonts/inter-latin-600.woff2) format('woff2'); font-weight: 600; font-display: swap; }
@font-face { font-family: 'Inter'; src: url(/fonts/inter-latin-700.woff2) format('woff2'); font-weight: 700; font-display: swap; }
@font-face { font-family: 'IBM Plex Mono'; src: url(/fonts/ibm-plex-mono-latin-400.woff2) format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'IBM Plex Mono'; src: url(/fonts/ibm-plex-mono-latin-500.woff2) format('woff2'); font-weight: 500; font-display: swap; }

:root {
  --ink: #141414;
  --muted: #5e5e5e;
  --line: #e6e6e6;
  --soft: #f5f5f5;
  --fire: #e0123a;
  --fire-ink: #b30e30;
  --display: 'Smiley Sans', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'PingFang SC', 'Microsoft YaHei', monospace;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: #fff;
  color: var(--ink);
  font-family: Inter, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
  font-synthesis: none;
}
a { color: var(--ink); }
a:hover { color: var(--fire); }
button, input, select, textarea { font: inherit; color: inherit; }

.mono { font-family: var(--mono); }
.muted { color: var(--muted); }

/* 顶部 */
.top { border-bottom: 1px solid var(--line); }
.top-inner {
  max-width: 1280px; margin: 0 auto; padding: 16px 32px;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px 32px;
}
.brand { display: flex; align-items: center; gap: 8px; text-decoration: none; }
.brand span { font-family: var(--display); font-size: 24px; line-height: 1; }
.steps { flex: 1 1 520px; display: flex; flex-wrap: wrap; gap: 4px 26px; font-size: 14px; }
.steps a, .steps span { text-decoration: none; padding: 8px 0; color: var(--muted); }
.steps [aria-current] { color: var(--ink); font-weight: 500; border-bottom: 2px solid var(--ink); }
.steps .mono { font-size: 12px; margin-right: 6px; }

.who { display: flex; align-items: center; gap: 16px; font-size: 14px; }
.link-btn { padding: 6px 0; border: 0; border-bottom: 1px solid var(--ink); background: none; font-size: 14px; cursor: pointer; }

/* 主体 */
.page { max-width: 1280px; margin: 0 auto; padding: 48px 32px 96px; }
.title { margin: 0; font-family: var(--display); font-weight: 400; font-size: 60px; line-height: 1.1; }
.lead { margin: 16px 0 0; font-size: 16px; line-height: 1.75; color: var(--muted); }

/* 三个入口 */
.tabs { margin-top: 40px; display: flex; flex-wrap: wrap; gap: 4px 32px; border-bottom: 1px solid var(--line); }
.tab {
  padding: 12px 0; margin-bottom: -1px; border: 0; border-bottom: 2px solid transparent;
  background: none; font-size: 16px; color: var(--muted); cursor: pointer;
}
.tab[aria-selected='true'] { color: var(--ink); font-weight: 500; border-bottom-color: var(--ink); }

.form { padding: 28px 0 8px; display: flex; flex-wrap: wrap; align-items: flex-end; gap: 24px 32px; }
.field { display: flex; flex-direction: column; gap: 6px; flex: 1 1 180px; }
.field.wide { flex: 3 1 420px; }
.field label { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.field input, .field textarea, .field select {
  border: 0; border-bottom: 1.5px solid var(--ink); border-radius: 0; outline: none;
  padding: 6px 0 10px; background: transparent; font-size: 18px;
}
.field textarea { resize: vertical; line-height: 1.6; }
.field select { appearance: none; cursor: pointer; }
.field input:focus, .field textarea:focus, .field select:focus { border-bottom-color: var(--fire); }
.check { display: flex; align-items: center; gap: 8px; font-size: 15px; padding-bottom: 12px; cursor: pointer; }
.check input { width: 18px; height: 18px; margin: 0; accent-color: var(--ink); }

.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; padding: 8px 0 28px; }
.btn {
  display: inline-flex; align-items: center; gap: 10px; min-height: 52px; padding: 0 24px;
  border: 1px solid var(--ink); border-radius: 8px; background: #fff; font-size: 16px; font-weight: 500;
  cursor: pointer; text-decoration: none;
}
.btn.primary { background: var(--fire); border-color: var(--fire); color: #fff; }
.btn.primary:hover { color: #fff; filter: brightness(0.94); }
.btn[disabled] { opacity: 0.45; cursor: wait; }
.hint { font-size: 13px; color: var(--muted); }

.status { padding: 16px 0; border-top: 1px solid var(--line); font-size: 15px; display: none; }
.status.show { display: block; }
.status.error { color: var(--fire-ink); }

/* 结果 */
.summary {
  margin: 0; padding: 14px 0; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--line);
  display: flex; flex-wrap: wrap; gap: 10px 36px; font-size: 14px;
}
.summary div { display: flex; gap: 10px; }
.summary dt { color: var(--muted); }
.summary dd { margin: 0; font-weight: 500; }

.result-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 20px; padding: 40px 0 20px; }
.result-head h2 { margin: 0; font-family: var(--display); font-weight: 400; font-size: 40px; }
.picked { font-size: 15px; color: var(--muted); }
.picked b { font-size: 22px; font-weight: 600; color: var(--ink); font-variant-numeric: tabular-nums; }

.row {
  display: flex; flex-wrap: wrap; align-items: center; gap: 16px 28px;
  padding: 20px 16px; border-bottom: 1px solid var(--line);
}
.row.on { background: #fafafa; }
.box {
  flex: 0 0 auto; width: 24px; height: 24px; padding: 0; border-radius: 6px; cursor: pointer;
  border: 1.5px solid #a3a3a3; background: #fff; display: flex; align-items: center; justify-content: center;
}
.row.on .box { border-color: var(--ink); background: var(--ink); }
.cover { flex: 0 0 60px; width: 60px; height: 106px; background: #eee; object-fit: cover; display: block; }
.info { flex: 1 1 280px; min-width: 0; display: flex; flex-direction: column; gap: 6px; }
.info .t { font-size: 17px; font-weight: 500; line-height: 1.5; text-decoration: none; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.info .a { font-size: 14px; color: var(--muted); }
.info .why { font-size: 14px; line-height: 1.6; }
.tag { font-size: 12px; padding: 2px 8px; border: 1px solid var(--line); border-radius: 4px; color: var(--muted); margin-left: 8px; }
.nums { flex: 0 1 400px; display: flex; flex-wrap: wrap; align-items: center; gap: 16px 32px; }
.num p { margin: 0; }
.num .k { font-size: 12px; color: var(--muted); }
.num .v { margin-top: 4px; font-size: 18px; font-weight: 500; font-variant-numeric: tabular-nums; }
.ratio { flex: 1 1 140px; }
.ratio .top-line { display: flex; justify-content: space-between; align-items: baseline; }
.ratio .v { font-size: 22px; font-weight: 600; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.ratio.hot .v { color: var(--fire); }
.bar { margin-top: 8px; height: 4px; background: #efefef; }
.bar i { display: block; height: 4px; background: var(--ink); }
.ratio.hot .bar i { background: var(--fire); }

.history { padding: 8px 0 16px; }
.history-title { margin: 0 0 8px; font-family: var(--mono); font-size: 12px; font-weight: 400; color: var(--muted); }
.history ul { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.history li { border-bottom: 1px solid var(--line); }
.history button {
  width: 100%; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 20px; padding: 12px 4px;
  border: 0; background: none; text-align: left; font-size: 15px; cursor: pointer;
}
.history button:hover { background: #fafafa; }
.history .what { flex: 1 1 260px; }
.history .when { font-family: var(--mono); font-size: 12px; color: var(--muted); }

.empty { padding: 48px 0; color: var(--muted); font-size: 16px; }

@media (max-width: 640px) {
  .page { padding: 32px 16px 72px; }
  .top-inner { padding: 14px 16px; }
  .title { font-size: 44px; }
}