:root {
  --hy-ink: #1d2b36;
  --hy-muted: #647481;
  --hy-line: #d8e4de;
  --hy-surface: #ffffff;
  --hy-soft: #f4f8f6;
  --hy-green: #159a78;
  --hy-green-dark: #0f755c;
  --hy-blue: #2878b8;
  --hy-red: #b44747;
  --hy-yellow: #d89b16;
}

* {
  box-sizing: border-box;
}

body.huanyu-paths {
  margin: 0;
  color: var(--hy-ink);
  background: var(--hy-soft);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
}

.hy-topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: #ffffff;
  border-bottom: 1px solid var(--hy-line);
}

.hy-topbar-inner,
.hy-main {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.hy-topbar-inner {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.hy-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--hy-ink);
  font-weight: 700;
  text-decoration: none;
}

.hy-brand img {
  height: 42px;
  width: auto;
}

.hy-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.hy-nav a {
  color: #324553;
  font-size: 14px;
  text-decoration: none;
}

.hy-nav a.active {
  color: var(--hy-green);
  font-weight: 700;
}

.hy-main {
  padding: 28px 0 42px;
}

.hy-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) 360px;
  gap: 22px;
  align-items: stretch;
  margin-bottom: 22px;
}

.hy-hero-copy,
.hy-panel,
.hy-card {
  background: var(--hy-surface);
  border: 1px solid var(--hy-line);
  border-radius: 8px;
}

.hy-hero-copy {
  padding: 28px;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hy-kicker {
  color: var(--hy-green);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 10px;
}

.hy-hero h1,
.hy-challenge-title h1 {
  margin: 0;
  color: var(--hy-ink);
  font-size: 34px;
  line-height: 1.22;
  letter-spacing: 0;
}

.hy-hero p,
.hy-card p,
.hy-panel p {
  color: var(--hy-muted);
  line-height: 1.72;
}

.hy-model-panel {
  padding: 22px;
}

.hy-model-panel h2,
.hy-panel h2,
.hy-card h2 {
  margin: 0 0 14px;
  font-size: 18px;
}

.hy-status-grid {
  display: grid;
  gap: 10px;
}

.hy-status-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid #edf2ef;
  color: var(--hy-muted);
  font-size: 14px;
}

.hy-status-item:last-child {
  border-bottom: 0;
}

.hy-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 26px;
  padding: 3px 10px;
  border-radius: 999px;
  background: #e8f5f0;
  color: var(--hy-green-dark);
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.hy-pill.warn {
  background: #fff4d8;
  color: #94620a;
}

.hy-pill.fail {
  background: #fde7e7;
  color: var(--hy-red);
}

.hy-level-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.hy-level-card {
  display: block;
  padding: 18px;
  color: inherit;
  text-decoration: none;
  transition: transform .16s ease, border-color .16s ease, box-shadow .16s ease;
}

.hy-level-card:hover,
.hy-level-card:focus {
  color: inherit;
  text-decoration: none;
  transform: translateY(-2px);
  border-color: #afd7c9;
  box-shadow: 0 8px 22px rgba(29, 43, 54, .08);
}

.hy-level-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.hy-level-no {
  color: var(--hy-green);
  font-weight: 800;
}

.hy-level-card h2 {
  min-height: 52px;
  line-height: 1.45;
}

.hy-progress {
  height: 8px;
  background: #e7eeeb;
  border-radius: 999px;
  overflow: hidden;
}

.hy-progress span {
  display: block;
  height: 100%;
  width: 0;
  background: var(--hy-green);
}

.hy-workspace {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr) 340px;
  gap: 18px;
  align-items: start;
}

.hy-panel {
  padding: 18px;
}

.hy-level-list {
  display: grid;
  gap: 10px;
}

.hy-level-button {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--hy-line);
  border-radius: 8px;
  background: #fff;
  color: #2a3c49;
  text-align: left;
  padding: 10px 12px;
  cursor: pointer;
}

.hy-level-button.active {
  border-color: var(--hy-green);
  background: #eef9f5;
  color: var(--hy-green-dark);
  font-weight: 700;
}

.hy-camera {
  overflow: hidden;
}

.hy-video-frame {
  position: relative;
  aspect-ratio: 16 / 10;
  background: #0f1d25;
  border-radius: 8px;
  overflow: hidden;
}

.hy-video-frame video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #0f1d25;
}

.hy-overlay-score {
  position: absolute;
  left: 16px;
  top: 16px;
  min-width: 96px;
  padding: 8px 12px;
  background: rgba(255, 255, 255, .92);
  border-radius: 8px;
  color: var(--hy-ink);
  font-weight: 800;
}

.hy-capture-status {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.hy-capture-status div {
  min-width: 0;
  padding: 12px;
  border: 1px solid #e2ece7;
  border-radius: 8px;
  background: #fbfdfc;
}

.hy-capture-status span {
  display: block;
  margin-bottom: 6px;
  color: var(--hy-muted);
  font-size: 12px;
  font-weight: 700;
}

.hy-capture-status strong {
  display: block;
  color: var(--hy-ink);
  font-size: 16px;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.hy-controls {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.hy-button {
  min-height: 42px;
  border: 1px solid var(--hy-green);
  border-radius: 8px;
  background: var(--hy-green);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}

.hy-button.secondary {
  background: #fff;
  color: var(--hy-green-dark);
}

.hy-button:disabled {
  border-color: #b9c6c0;
  background: #d6ded9;
  color: #6a7771;
  cursor: not-allowed;
}

.hy-file {
  position: relative;
  display: flex;
}

.hy-file input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.hy-file span {
  width: 100%;
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--hy-green);
  border-radius: 8px;
  color: var(--hy-green-dark);
  background: #fff;
  font-weight: 700;
}

.hy-file.is-disabled {
  opacity: .58;
  pointer-events: none;
}

.huanyu-paths .page-title,
.huanyu-paths .panel,
.huanyu-paths .hy-card,
.huanyu-paths .hy-level-button,
.huanyu-paths .hy-result-box,
.huanyu-paths .hy-capture-status div {
  border-color: rgba(93, 233, 219, .26);
  background:
    linear-gradient(145deg, rgba(10, 28, 38, .92), rgba(8, 18, 28, .82)),
    rgba(8, 21, 30, .9);
  color: #eefcff;
  box-shadow: 0 18px 44px rgba(0, 0, 0, .28), inset 0 1px 0 rgba(255, 255, 255, .08);
}

.huanyu-paths .panel-heading,
.huanyu-paths .hy-level-card h2,
.huanyu-paths .hy-result-box strong,
.huanyu-paths .hy-capture-status strong {
  color: #f6ffff;
}

.huanyu-paths .lead,
.huanyu-paths .page-title p,
.huanyu-paths .hy-level-card p,
.huanyu-paths .hy-result-box label,
.huanyu-paths .hy-capture-status span,
.huanyu-paths .hy-result p {
  color: rgba(222, 246, 250, .78);
}

.huanyu-paths .hy-level-grid {
  grid-template-columns: repeat(auto-fill, minmax(168px, 1fr));
}

.huanyu-paths .hy-level-card {
  min-height: 156px;
}

.huanyu-paths .hy-level-button {
  position: relative;
  background: linear-gradient(135deg, rgba(9, 27, 38, .94), rgba(13, 42, 54, .86));
  color: rgba(238, 252, 255, .88);
}

.huanyu-paths .hy-level-button.active {
  border-color: rgba(52, 245, 214, .78);
  background: linear-gradient(135deg, rgba(13, 73, 82, .95), rgba(12, 42, 70, .92));
  color: #ffffff;
  box-shadow: 0 0 0 1px rgba(52, 245, 214, .22), 0 16px 38px rgba(0, 220, 200, .14);
}

.huanyu-paths .hy-overlay-score {
  background: rgba(7, 20, 28, .76);
  color: #efffff;
  border: 1px solid rgba(52, 245, 214, .38);
  backdrop-filter: blur(12px);
}

.huanyu-paths .hy-button,
.huanyu-paths .hy-file span {
  border-color: rgba(52, 245, 214, .58);
  background: linear-gradient(135deg, #13cdb9, #366fff);
  color: #ffffff;
  box-shadow: 0 14px 30px rgba(19, 205, 185, .2);
}

.huanyu-paths .hy-button.secondary,
.huanyu-paths .hy-file span {
  background: rgba(8, 24, 34, .72);
  color: #dffcff;
}

.hy-keypoint-panel {
  margin-top: 12px;
  padding: 12px;
  border: 1px solid rgba(93, 233, 219, .3);
  border-radius: 8px;
  background:
    radial-gradient(circle at 18% 0%, rgba(52, 245, 214, .18), transparent 36%),
    linear-gradient(150deg, rgba(5, 19, 28, .96), rgba(8, 29, 41, .9));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .08), 0 20px 46px rgba(0, 0, 0, .28);
}

.hy-keypoint-head,
.hy-keypoint-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.hy-keypoint-head span,
.hy-keypoint-meta span {
  color: rgba(223, 249, 253, .74);
  font-size: 12px;
  font-weight: 700;
}

.hy-keypoint-head strong {
  color: #36f5d6;
  font-size: 14px;
}

.hy-keypoint-panel canvas {
  width: 100%;
  aspect-ratio: 16 / 9;
  display: block;
  margin: 10px 0;
  border: 1px solid rgba(93, 233, 219, .22);
  border-radius: 8px;
  background: #07141b;
}

.hy-result {
  display: grid;
  gap: 12px;
  border-top: 4px solid transparent;
}

.hy-result.is-pass {
  border-top-color: var(--hy-green);
}

.hy-result.is-warn {
  border-top-color: var(--hy-yellow);
}

.hy-result.is-fail {
  border-top-color: var(--hy-red);
}

.hy-result.is-pass .panel-heading strong {
  color: var(--hy-green-dark);
}

.hy-result.is-warn .panel-heading strong {
  color: #94620a;
}

.hy-result.is-fail .panel-heading strong {
  color: var(--hy-red);
}

.hy-result-box {
  padding: 12px;
  border: 1px solid #e3ebe7;
  border-radius: 8px;
  background: #fbfdfc;
}

.hy-result-box label {
  display: block;
  margin-bottom: 6px;
  color: var(--hy-muted);
  font-size: 12px;
}

.hy-result-box strong {
  display: block;
  color: var(--hy-ink);
  line-height: 1.55;
  word-break: break-word;
}

.hy-footer {
  margin-top: 30px;
  padding: 22px 0;
  color: var(--hy-muted);
  text-align: center;
  border-top: 1px solid var(--hy-line);
}

@media (max-width: 980px) {
  .hy-hero,
  .hy-workspace {
    grid-template-columns: 1fr;
  }

  .hy-controls {
    grid-template-columns: repeat(2, minmax(120px, 1fr));
  }

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

@media (max-width: 640px) {
  .hy-topbar-inner,
  .hy-main {
    width: min(100% - 20px, 1180px);
  }

  .hy-topbar-inner,
  .hy-nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .hy-topbar-inner {
    padding: 12px 0;
  }

  .hy-hero h1,
  .hy-challenge-title h1 {
    font-size: 26px;
  }

  .hy-level-grid,
  .hy-controls,
  .hy-capture-status {
    grid-template-columns: 1fr;
  }

  .hy-level-list {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 4px;
    scroll-snap-type: x proximity;
  }

  .hy-level-button {
    flex: 0 0 78%;
    scroll-snap-align: start;
  }
}