:root {
  --bg: #faf9f6;
  --surface: #ffffff;
  --text: #1f2328;
  --muted: #6b7280;
  --border: #e3e0d8;
  --accent: #3b6ea5;
  --accent-contrast: #ffffff;
  --agree: #2e7d5b;
  --disagree: #b3503e;
  --pass: #8a8578;
  --group-0: #3b6ea5;
  --group-1: #c26b34;
  --group-2: #5c8a4e;
  --group-3: #8a5ca5;
  --group-4: #a5527a;
  --radius: 10px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16181d;
    --surface: #1f232b;
    --text: #e8e6e1;
    --muted: #9aa0ab;
    --border: #333842;
    --accent: #7aa7d6;
    --accent-contrast: #14161a;
    --agree: #5cb890;
    --disagree: #d98977;
    --pass: #9a958a;
    --group-0: #7aa7d6;
    --group-1: #d99a6b;
    --group-2: #93bd85;
    --group-3: #b795d1;
    --group-4: #cf8aaa;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang TC", "Noto Sans TC", -apple-system, "Segoe UI", sans-serif;
  line-height: 1.65;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

h1 {
  font-size: 1.6rem;
  line-height: 1.3;
  margin: 0 0 0.5rem;
}

h2 {
  font-size: 1.15rem;
  margin: 2.2rem 0 0.8rem;
}

h3 {
  font-size: 1rem;
  margin: 0 0 0.5rem;
}

.tagline {
  font-size: 1.02rem;
  margin: 0.6rem 0 1rem;
}

.hero-actions {
  margin: 1.2rem 0 0.6rem;
}

.page-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
}

.lang-switch a,
.site-nav .lang {
  font-size: 0.82rem;
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.12rem 0.6rem;
  white-space: nowrap;
}

.lang-switch a:hover,
.site-nav .lang:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1.1rem 0 0.4rem;
}

.site-nav .wordmark {
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  margin-right: auto;
}

.site-nav a:not(.wordmark):not(.lang) {
  font-size: 0.9rem;
  color: var(--muted);
  text-decoration: none;
}

.site-nav a:not(.wordmark):not(.lang):hover {
  color: var(--accent);
}

.hero {
  display: grid;
  grid-template-columns: 5fr 4fr;
  gap: 2rem;
  align-items: center;
  margin: 1.6rem 0 0.8rem;
}

.hero h1 {
  font-size: 1.9rem;
}

.hero-figure svg {
  width: 100%;
  height: auto;
}

@media (max-width: 640px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .hero-figure {
    max-width: 340px;
  }
}

.trust-line {
  color: var(--muted);
  font-size: 0.84rem;
  margin-top: 0.9rem;
}

.cards-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 0.75rem;
  margin: 1rem 0;
}

.cards-3 .card {
  margin: 0;
}

.cards-3 h3 {
  margin-bottom: 0.35rem;
}

.cards-3 p {
  font-size: 0.9rem;
  color: var(--muted);
}

details.faq {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1.1rem;
  margin: 0.55rem 0;
}

details.faq summary {
  cursor: pointer;
  font-weight: 600;
}

details.faq p {
  margin-top: 0.6rem;
  color: var(--muted);
}

.steps {
  padding-left: 1.3rem;
  margin: 0.6rem 0;
}

.steps li {
  margin: 0.5rem 0;
}

pre {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.8rem 0.9rem;
  font-size: 0.86rem;
  line-height: 1.55;
  overflow-x: auto;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

code {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 0.05rem 0.35rem;
  font-size: 0.86em;
}

.link-row code {
  background: var(--bg);
}

p {
  margin: 0.4rem 0;
}

a {
  color: var(--accent);
}

.muted {
  color: var(--muted);
  font-size: 0.9rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin: 1rem 0;
}

.statement-card {
  min-height: 7.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 1.2rem;
  padding: 2rem 1.5rem;
}

.vote-buttons {
  display: flex;
  gap: 0.6rem;
  margin: 0.8rem 0 0.4rem;
}

.vote-buttons button {
  flex: 1;
  padding: 0.85rem 0.5rem;
  font-size: 1rem;
}

button,
.button {
  font: inherit;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  padding: 0.55rem 1rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  text-align: center;
}

button:hover,
.button:hover {
  border-color: var(--accent);
}

button:disabled {
  opacity: 0.5;
  cursor: default;
}

button.primary,
.button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-contrast);
}

button.agree {
  border-color: var(--agree);
  color: var(--agree);
}

button.disagree {
  border-color: var(--disagree);
  color: var(--disagree);
}

button.pass {
  color: var(--pass);
}

input[type="text"],
textarea {
  font: inherit;
  width: 100%;
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
}

textarea {
  resize: vertical;
}

label {
  display: block;
  margin: 0.9rem 0 0.25rem;
  font-weight: 600;
}

.checkbox-row {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin: 0.5rem 0;
  font-weight: 400;
}

.checkbox-row input {
  flex-shrink: 0;
}

.progress-track {
  height: 6px;
  border-radius: 3px;
  background: var(--border);
  overflow: hidden;
  margin: 0.6rem 0 0.2rem;
}

.progress-fill {
  height: 100%;
  background: var(--accent);
  width: 0;
  transition: width 0.3s;
}

.stats-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1rem 0;
}

.stat {
  flex: 1 1 7rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.7rem 0.9rem;
}

.stat .value {
  font-size: 1.4rem;
  font-weight: 700;
}

.stat .label {
  color: var(--muted);
  font-size: 0.82rem;
}

.map-svg {
  width: 100%;
  height: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.1rem;
  margin: 0.5rem 0;
  font-size: 0.88rem;
}

.legend .dot {
  display: inline-block;
  width: 0.7em;
  height: 0.7em;
  border-radius: 50%;
  margin-right: 0.35em;
}

.statement-row {
  display: flex;
  gap: 0.8rem;
  align-items: flex-start;
  padding: 0.7rem 0;
  border-top: 1px solid var(--border);
}

.statement-row:first-child {
  border-top: none;
}

.statement-row .text {
  flex: 1;
}

.tag {
  display: inline-block;
  font-size: 0.75rem;
  border-radius: 999px;
  padding: 0.05rem 0.55rem;
  border: 1px solid var(--border);
  color: var(--muted);
  white-space: nowrap;
}

.tag.agree {
  color: var(--agree);
  border-color: var(--agree);
}

.tag.disagree {
  color: var(--disagree);
  border-color: var(--disagree);
}

.tag.pending {
  color: var(--accent);
  border-color: var(--accent);
}

.vote-bar {
  display: flex;
  height: 8px;
  border-radius: 4px;
  overflow: hidden;
  background: var(--border);
  margin-top: 0.35rem;
  max-width: 300px;
}

.vote-bar .agree {
  background: var(--agree);
}

.vote-bar .disagree {
  background: var(--disagree);
}

.vote-bar .pass {
  background: var(--pass);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.6rem;
}

.link-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin: 0.45rem 0;
  flex-wrap: wrap;
}

.link-row code {
  flex: 1 1 14rem;
  overflow-wrap: anywhere;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.3rem 0.5rem;
  font-size: 0.84rem;
}

.notice {
  border-left: 3px solid var(--accent);
  padding: 0.5rem 0.9rem;
  background: var(--surface);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 1rem 0;
}

.error {
  color: var(--disagree);
}

footer {
  max-width: 720px;
  margin: 0 auto;
  padding: 1rem 1.25rem 2.5rem;
  color: var(--muted);
  font-size: 0.84rem;
  border-top: 1px solid var(--border);
}

.hidden {
  display: none !important;
}

.mt-lg {
  margin-top: 1.5rem;
}