:root {
  color-scheme: dark;
  --bg: #161414;
  --surface: #211d1d;
  --surface-strong: #2a2424;
  --line: #3a3030;
  --text: #f4eeee;
  --muted: #aaa0a0;
  --faint: #746b6b;
  --accent: #8e2f37;
  --accent-strong: #b84650;
  --accent-soft: rgba(142, 47, 55, 0.18);
  --warning: #d9b56f;
  --radius: 8px;
  --shadow: 0 18px 48px rgba(0, 0, 0, 0.26);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at 50% -10%, rgba(142, 47, 55, 0.18), transparent 34rem), var(--bg);
  color: var(--text);
}

button {
  font: inherit;
}

.app-shell {
  width: min(100%, 520px);
  min-height: 100vh;
  margin: 0 auto;
  padding: 28px 24px 112px;
}

.view {
  animation: fade-in 240ms ease-out both;
}

.home {
  min-height: calc(100vh - 140px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 26px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-strong);
  font-size: 13px;
  letter-spacing: 0;
}

.title {
  margin: 0;
  font-size: clamp(34px, 10vw, 48px);
  line-height: 1.08;
  letter-spacing: 0;
}

.subtitle {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

.disclaimer {
  margin: 0;
  color: var(--faint);
  font-size: 13px;
  line-height: 1.7;
}

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface-strong), var(--surface));
  box-shadow: var(--shadow);
  padding: 24px 32px; /* 已优化：增加了内边距 */
}

.home-card,
.summary-card,
.question-card {
  padding: 20px;
}

.button {
  width: 100%;
  min-height: 52px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--text);
  cursor: pointer;
  transition: transform 140ms ease, background 140ms ease, border-color 140ms ease;
}

.button:active {
  transform: scale(0.985);
}

.button:hover {
  background: var(--accent-strong);
}

.button.secondary {
  background: transparent;
  border-color: var(--line);
  color: var(--muted);
}

.button.secondary:hover {
  border-color: var(--accent);
  color: var(--text);
  background: var(--accent-soft);
}

.test-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  color: var(--muted);
}

.progress-text {
  color: var(--text);
  font-size: 15px;
}

.progress-track {
  overflow: hidden;
  width: 130px;
  height: 4px;
  border-radius: 999px;
  background: #332b2b;
}

.progress-bar {
  height: 100%;
  border-radius: inherit;
  background: var(--accent-strong);
  transition: width 220ms ease;
}

.question-label {
  margin: 0 0 10px;
  color: var(--accent-strong);
  font-size: 13px;
}

.question-text {
  margin: 0;
  font-size: 20px;
  line-height: 1.65;
}

.options {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.option {
  width: 100%;
  min-height: 58px;
  padding: 14px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.025);
  color: var(--text);
  text-align: left;
  line-height: 1.55;
  cursor: pointer;
}

.option.selected {
  border-color: var(--accent-strong);
  background: var(--accent-soft);
}

.option-key {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  margin-right: 8px;
  border-radius: 50%;
  background: #332b2b;
  color: var(--muted);
  font-size: 12px;
}

.option.selected .option-key {
  background: var(--accent);
  color: var(--text);
}

.bottom-bar {
  position: fixed;
  left: 50%;
  bottom: 0;
  z-index: 5;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  width: min(100%, 520px);
  padding: 14px 18px calc(14px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
  background: rgba(22, 20, 20, 0.92);
  backdrop-filter: blur(14px);
  transform: translateX(-50%);
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 92px;
  z-index: 10;
  width: calc(100% - 36px);
  max-width: 484px;
  padding: 12px 14px;
  border: 1px solid rgba(217, 181, 111, 0.38);
  border-radius: var(--radius);
  background: rgba(45, 36, 27, 0.96);
  color: var(--warning);
  text-align: center;
  transform: translateX(-50%);
  animation: toast-in 180ms ease-out both;
}

.summary {
  display: grid;
  gap: 24px; /* 已优化：增加了模块间距 */
}

.summary h3 {
  margin: 10px 0 -12px 0; /* 已优化：增加标题间距 */
  font-size: 16px;
  color: var(--text);
  font-weight: 600;
}

.score-list {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.score-row {
  display: grid;
  grid-template-columns: 7.5em 1fr 2em;
  gap: 10px;
  align-items: center;
  color: var(--muted);
  font-size: 14px;
}

.score-meter {
  height: 6px;
  overflow: hidden;
  border-radius: 999px;
  background: #332b2b;
}

.score-meter span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--accent-strong);
}

.error-box {
  padding: 16px;
  border: 1px solid rgba(217, 181, 111, 0.38);
  border-radius: var(--radius);
  background: rgba(45, 36, 27, 0.8);
  color: var(--warning);
  line-height: 1.7;
}

@keyframes fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes toast-in {
  from { opacity: 0; transform: translate(-50%, 8px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

@media (min-width: 720px) {
  .app-shell { padding-top: 46px; }
}

.bottom-bar.single { grid-template-columns: 1fr; }
.result-hero { padding: 8px 2px 2px; }

.spider-wrap {
  width: 100%;
  max-width: 360px;
  margin: 0 auto;
  aspect-ratio: 1;
}

.spider-chart { display: block; width: 100%; height: 100%; }
.spider-grid { fill: none; stroke: rgba(244, 238, 238, 0.12); stroke-width: 1; }
.spider-axis { stroke: rgba(244, 238, 238, 0.1); stroke-width: 1; }
.spider-area { fill: rgba(184, 70, 80, 0.26); stroke: none; transform-origin: center; animation: chart-grow 900ms ease-out both; }
.spider-line { fill: none; stroke: var(--accent-strong); stroke-width: 2.2; stroke-linejoin: round; stroke-linecap: round; transform-origin: center; animation: chart-grow 900ms ease-out both; }
.spider-label { fill: var(--muted); font-size: 10px; }

@keyframes chart-grow {
  from { opacity: 0; transform: scale(0.72); }
  to { opacity: 1; transform: scale(1); }
}