:root {
  --bg: #f3f8f4;
  --card: #ffffff;
  --line: #d8e5da;
  --text: #1f2d24;
  --muted: #647168;
  --soft: #edf5ef;
  --accent: #4f6f57;
  --accent-strong: #3f5a46;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 18% -10%, #f8fff8 0%, var(--bg) 35%),
    radial-gradient(circle at 110% 12%, #dfeedd 0%, var(--bg) 42%);
}

.shell {
  width: min(920px, 92vw);
  margin: 24px auto 56px;
}

.screen { display: none; }
.screen.active { display: block; }

.card {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--card);
  box-shadow: 0 16px 44px rgba(58, 86, 65, 0.08);
}

.hero {
  padding: 28px;
  text-align: center;
}

.tag {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 13px;
  background: var(--soft);
  border: 1px solid var(--line);
  color: var(--accent);
  font-weight: 600;
}

h1, h2, h3, p { margin: 0; }

.hero h1 {
  margin-top: 20px;
  font-size: clamp(42px, 6vw, 62px);
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.author {
  margin-top: 18px;
  color: var(--muted);
  font-size: 15px;
}

.btn {
  border: 0;
  border-radius: 16px;
  padding: 0 18px;
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 18px;
  font-weight: 700;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, #5f8066, #496550);
}

.btn-secondary {
  color: #48624e;
  background: #fff;
  border: 1px solid var(--line);
}

.hero .btn {
  margin-top: 26px;
  width: min(340px, 100%);
}

.quiz,
.result {
  padding: 22px;
}

.topbar { display: flex; gap: 12px; align-items: center; }
.progress {
  flex: 1;
  height: 12px;
  background: #e6efe8;
  border-radius: 999px;
  overflow: hidden;
}
.progress > span {
  display: block;
  width: 0;
  height: 100%;
  transition: width .25s ease;
  background: linear-gradient(90deg, #95b49c, #5b7862);
}
.progress-text { color: var(--muted); font-size: 14px; min-width: 78px; text-align: right; }

.meta-row {
  margin-top: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
}

.link-btn {
  border: 0;
  background: transparent;
  color: var(--accent);
  text-decoration: underline;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  padding: 0;
  line-height: 1;
}

.hint {
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--soft);
  color: var(--accent);
  font-size: 14px;
  line-height: 1.6;
}

.question {
  margin-top: 12px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: linear-gradient(180deg, #fff, #f9fcfa);
  padding: 16px;
}

.q-meta { display: flex; justify-content: space-between; }
.badge-lite {
  font-size: 12px;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 10px;
  background: var(--soft);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1.2;
}

.q-title {
  margin-top: 12px;
  font-size: 26px;
  line-height: 1.55;
  word-break: break-word;
}

.options {
  margin-top: 14px;
  display: grid;
  gap: 10px;
}

.option {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 13px 14px;
  display: flex;
  gap: 10px;
  align-items: center;
  cursor: pointer;
  background: #fff;
}

.option:hover {
  background: #f7fcf8;
}

.option.active {
  border-color: #64846c;
  background: #f2f8f3;
}

.opt-code {
  width: 22px;
  font-weight: 800;
  color: var(--accent);
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.opt-label {
  font-size: 17px;
  line-height: 1.6;
}

.footer-tip {
  margin-top: 12px;
  color: var(--muted);
  font-size: 14px;
}

.actions {
  margin-top: 12px;
  display: flex;
  gap: 10px;
}

.actions .btn { min-height: 50px; font-size: 17px; }
.two-col .btn { flex: 1; }

.block {
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
  padding: 16px;
}

.hero-result {
  background: linear-gradient(160deg, #fff 0%, #f2f8f3 100%);
}

.kicker { font-size: 13px; color: var(--accent); }
.type-name { margin-top: 8px; font-size: clamp(36px, 5vw, 56px); line-height: 1.15; }
.badge { margin-top: 10px; display: inline-block; padding: 8px 12px; border-radius: 999px; border: 1px solid var(--line); background: var(--soft); color: var(--accent); font-weight: 700; }
.sub { margin-top: 10px; color: var(--muted); font-size: 16px; line-height: 1.65; }
.intro { margin-top: 8px; font-size: 22px; font-weight: 700; }

.poster-block img {
  width: 100%;
  border-radius: 14px;
  display: block;
}

.block h3 { font-size: 24px; margin-bottom: 10px; }
.desc { font-size: 18px; line-height: 1.7; color: #344238; }

.top3-list,
.dim-list { display: grid; gap: 8px; }
.top3-item,
.dim-item {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #f9fcfa;
  padding: 10px 12px;
}

.top3-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.top3-item strong { display: block; font-size: 16px; }
.top3-item span { color: var(--muted); font-size: 13px; }
.score { color: var(--accent); font-weight: 800; }

.dim-top {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
}

.dim-top strong { font-size: 15px; }
.dim-top span { color: var(--accent); font-weight: 700; }
.dim-item p { margin-top: 6px; color: var(--muted); font-size: 14px; line-height: 1.7; }

.author-note { padding: 0; overflow: hidden; }
.author-head {
  padding: 12px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.author-head h3 { margin: 0; }
.mini-btn {
  border: 1px solid var(--line);
  background: var(--soft);
  color: var(--accent);
  border-radius: 999px;
  padding: 6px 12px;
  cursor: pointer;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1.2;
}

.author-body {
  padding: 14px 16px;
  display: grid;
  gap: 10px;
}

.author-body p {
  font-size: 16px;
  line-height: 1.7;
  color: #35443a;
}

@media (max-width: 640px) {
  .shell { width: 94vw; margin: 12px auto 26px; }
  .hero,
  .quiz,
  .result { padding: 14px; }
  .hero h1 { font-size: 48px; }
  .q-title { font-size: 30px; }
  .type-name { font-size: 42px; }
  .block h3 { font-size: 22px; }
  .desc { font-size: 17px; }
}