:root {
  --bg-1: #06101b;
  --bg-2: #0d2740;
  --bg-3: #093021;
  --panel: rgba(8, 26, 42, 0.86);
  --panel-border: rgba(197, 226, 250, 0.16);
  --text: #eef8ff;
  --muted: #a7c0d6;
  --accent: #28b9a0;
  --accent-2: #ffad46;
  --danger: #ff6e58;
  --ok: #27c074;
  --shadow: 0 20px 50px rgba(0, 7, 14, 0.45);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 8%, rgba(40, 185, 160, 0.22), transparent 30%),
    radial-gradient(circle at 90% 10%, rgba(255, 173, 70, 0.2), transparent 34%),
    linear-gradient(160deg, var(--bg-1), var(--bg-2) 44%, var(--bg-3));
  padding: 16px;
}

.app {
  width: min(1680px, 97vw);
  margin: 0 auto;
  display: grid;
  gap: 12px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 18px;
  padding: 14px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(7px);
}

.hero {
  border: 1px solid rgba(205, 233, 255, 0.2);
  border-radius: 20px;
  background: linear-gradient(130deg, rgba(21, 50, 75, 0.92), rgba(13, 71, 85, 0.93) 52%, rgba(196, 95, 35, 0.93));
  box-shadow: var(--shadow);
  padding: clamp(16px, 2.4vw, 24px);
}

.eyebrow {
  margin: 0;
  color: #c9ffef;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 5px 0 0;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  line-height: 1.05;
}

.hero h2 {
  margin: 6px 0 0;
  color: #e5f5ff;
  font-size: clamp(1rem, 2.4vw, 1.55rem);
}

.hero-note {
  margin: 10px 0 0;
  max-width: 900px;
  color: #dcf0fb;
  line-height: 1.48;
}

.guide h3,
.policy h3 {
  margin: 0 0 10px;
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.guide-grid article {
  border: 1px solid rgba(197, 226, 250, 0.17);
  background: rgba(255, 255, 255, 0.03);
  border-radius: 12px;
  padding: 10px;
}

.guide-grid b {
  color: #fff2cc;
}

.guide-grid p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.45;
}

.controls {
  display: grid;
  grid-template-columns: 1.2fr 1fr 0.72fr;
  gap: 12px;
  align-items: start;
}

.timeline-controls,
.filters,
.media-actions {
  display: grid;
  gap: 8px;
}

label {
  color: #d6ecff;
  font-size: 0.92rem;
  font-weight: 700;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent-2);
}

select,
input[type="search"] {
  width: 100%;
  border: 1px solid rgba(197, 226, 250, 0.2);
  border-radius: 10px;
  padding: 9px 11px;
  font-size: 0.96rem;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

select:focus,
input[type="search"]:focus {
  outline: 2px solid rgba(40, 185, 160, 0.4);
}

.line-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 38px;
}

#yearValue {
  font-size: clamp(1rem, 2vw, 1.28rem);
  color: #ffddb3;
  text-align: center;
}

.hint {
  color: var(--muted);
  font-size: 0.86rem;
}

.action-btn {
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: #002019;
  font-weight: 800;
  padding: 8px 14px;
  cursor: pointer;
  min-height: 38px;
}

.action-btn:hover {
  filter: brightness(1.06);
}

.action-btn.ghost {
  background: rgba(255, 255, 255, 0.1);
  color: #eaf6ff;
  border: 1px solid rgba(197, 226, 250, 0.2);
}

.action-btn.alt {
  background: #2a7fe6;
  color: #fff;
}

.action-btn.success {
  background: var(--ok);
  color: #002914;
}

.fine-print {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.4;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.stat-item {
  border: 1px solid rgba(197, 226, 250, 0.16);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  padding: 10px;
}

.stat-item b {
  display: block;
  color: #fff7d8;
  font-size: clamp(1rem, 1.8vw, 1.3rem);
}

.stat-item span {
  color: var(--muted);
  font-size: 0.87rem;
}

.policy-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.policy-row {
  border: 1px solid rgba(197, 226, 250, 0.16);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  padding: 10px;
}

.policy-head {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: baseline;
}

.policy-head b {
  font-size: 0.95rem;
}

.policy-head span {
  color: #ffe9be;
  font-size: 0.82rem;
}

.impact-track {
  margin-top: 8px;
  height: 11px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(255, 110, 88, 0.5) 0 50%, rgba(39, 192, 116, 0.5) 50%);
  position: relative;
  overflow: hidden;
}

.impact-track::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  width: 2px;
  height: 100%;
  background: rgba(255, 255, 255, 0.6);
}

.impact-bar {
  position: absolute;
  top: 0;
  height: 100%;
}

.impact-bar.pos {
  left: 50%;
  background: #27c074;
}

.impact-bar.neg {
  right: 50%;
  background: #ff6e58;
}

.policy-row p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.4;
}

.timeline-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 12px;
}

.event-card {
  border: 1px solid rgba(197, 226, 250, 0.16);
  border-radius: 16px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.04);
  box-shadow: 0 10px 26px rgba(0, 7, 14, 0.35);
}

.image-wrap {
  position: relative;
  height: 190px;
  background: linear-gradient(130deg, rgba(33, 83, 121, 0.8), rgba(25, 58, 79, 0.84), rgba(169, 89, 41, 0.76));
}

.image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.image-fallback {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  font-size: 2.5rem;
}

.image-year {
  position: absolute;
  top: 8px;
  left: 8px;
  background: rgba(0, 0, 0, 0.62);
  color: #fff;
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 0.8rem;
  font-weight: 700;
}

.card-body {
  padding: 10px;
}

.card-body h4 {
  margin: 0;
  font-size: 1.05rem;
}

.en-title {
  margin: 4px 0 0;
  color: #c7e7fb;
  font-size: 0.86rem;
}

.meta-line {
  margin-top: 8px;
  color: #e7f6ff;
  font-size: 0.84rem;
}

.meta-light {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.35;
}

.bar-stack {
  margin-top: 10px;
  display: grid;
  gap: 8px;
}

.bar-row {
  display: grid;
  grid-template-columns: 92px 1fr auto;
  gap: 8px;
  align-items: center;
}

.bar-row span {
  color: #e5f5ff;
  font-size: 0.8rem;
}

.bar-track {
  height: 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #2a9be6, #27c074);
}

.bar-value {
  color: #ffe3ba;
  font-size: 0.78rem;
}

.policy-tags {
  margin-top: 9px;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.policy-tags span {
  border: 1px solid rgba(197, 226, 250, 0.2);
  border-radius: 999px;
  padding: 4px 8px;
  font-size: 0.75rem;
  color: #d6ecff;
  background: rgba(255, 255, 255, 0.06);
}

.voice-row {
  margin-top: 10px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.voice-btn {
  border: 1px solid rgba(197, 226, 250, 0.22);
  background: rgba(255, 255, 255, 0.08);
  color: #eaf6ff;
  border-radius: 999px;
  padding: 7px 10px;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
}

.empty {
  border: 2px dashed rgba(197, 226, 250, 0.3);
  border-radius: 16px;
  padding: 28px;
  color: #daefff;
  text-align: center;
  background: rgba(255, 255, 255, 0.03);
  font-size: 1rem;
  font-weight: 600;
}

#rotateHint {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(4, 12, 20, 0.85);
  z-index: 999;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.rotate-card {
  max-width: 520px;
  background: #fff;
  border-radius: 16px;
  padding: 18px;
  color: #163042;
  text-align: center;
}

.rotate-card h2 {
  margin: 0;
}

.rotate-card p {
  margin: 8px 0 0;
  color: #365568;
}

@media (max-width: 1240px) {
  .controls {
    grid-template-columns: 1fr;
  }

  .guide-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .policy-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  body {
    padding: 10px;
  }

  .timeline-list {
    grid-template-columns: 1fr;
  }

  .guide-grid {
    grid-template-columns: 1fr;
  }

  .bar-row {
    grid-template-columns: 86px 1fr auto;
  }
}

@media (orientation: portrait) and (max-width: 1100px) {
  #rotateHint {
    display: flex;
  }
}