:root {
  color: #1d2433;
  background: #f6f8fb;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  overflow-x: hidden;
}

button {
  font: inherit;
}

.shell {
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 68px;
  padding: 0 40px;
  border-bottom: 1px solid #d7dde8;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 0;
  background: transparent;
  color: #164682;
  font-weight: 800;
  cursor: pointer;
}

.brand-mark,
.panel-icon,
.entry-icon,
.mini-icon,
.tile-badge,
.ability-icon,
.arrow {
  display: inline-grid;
  place-items: center;
  width: fit-content;
  border-radius: 8px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  width: 34px;
  height: 34px;
  background: #164682;
  color: #fff;
}

.topnav {
  display: flex;
  gap: 10px;
  color: #526174;
  font-size: 14px;
}

.topnav span {
  padding: 7px 10px;
  border: 1px solid #dce4ef;
  border-radius: 999px;
  background: #fff;
}

.home,
.page {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 52px 24px 80px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 30px;
  align-items: stretch;
  width: 100%;
  min-height: 330px;
}

.eyebrow {
  margin: 0 0 12px;
  color: #1d6b8f;
  font-size: 15px;
  font-weight: 800;
}

h1,
h2,
h3,
p,
strong,
span,
li {
  margin-top: 0;
  overflow-wrap: anywhere;
}

.hero h1,
.page-title h1 {
  max-width: 900px;
  margin-bottom: 18px;
  color: #111b2d;
  font-size: 50px;
  line-height: 1.08;
  letter-spacing: 0;
}

.lead,
.page-title p {
  max-width: 760px;
  color: #526174;
  font-size: 20px;
  line-height: 1.7;
}

.hero-panel {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 14px;
  width: 100%;
  max-width: 100%;
  padding: 28px;
  border: 1px solid #cdd8e8;
  border-radius: 8px;
  background: #ffffff;
  color: #164682;
  box-shadow: 0 20px 48px rgba(38, 61, 89, 0.1);
}

.hero-panel strong {
  font-size: 24px;
}

.hero-panel span {
  color: #526174;
  line-height: 1.6;
}

.hero-panel .panel-icon {
  width: 52px;
  height: 52px;
  background: #e7f7b8;
  color: #164682;
}

.entry-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  width: 100%;
  margin-top: 34px;
}

.entry-card,
.scenario-card,
.ability-tile {
  display: grid;
  gap: 14px;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  min-height: 248px;
  padding: 28px;
  border: 1px solid #cdd8e8;
  border-radius: 8px;
  text-align: left;
  cursor: pointer;
  transition:
    transform 0.18s ease,
    border-color 0.18s ease,
    box-shadow 0.18s ease;
}

.entry-card:hover,
.scenario-card:hover,
.ability-tile:hover,
.ability-chips button:hover {
  transform: translateY(-2px);
  border-color: #276fb6;
  box-shadow: 0 18px 36px rgba(39, 111, 182, 0.14);
}

.primary-entry {
  background: #0f5fa8;
  color: #fff;
}

.secondary-entry {
  background: #e7f7b8;
  color: #15355f;
}

.entry-card strong {
  font-size: 28px;
  line-height: 1.22;
}

.entry-card span {
  line-height: 1.65;
}

.entry-icon {
  padding: 7px 10px;
  background: rgba(255, 255, 255, 0.18);
  color: inherit;
  font-size: 14px;
}

.secondary-entry .entry-icon {
  background: rgba(22, 70, 130, 0.1);
}

.entry-kicker {
  font-size: 15px;
  font-weight: 800;
}

.arrow {
  align-self: end;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.18);
  font-size: 24px;
}

.secondary-entry .arrow {
  background: rgba(22, 70, 130, 0.1);
}

.principles {
  margin-top: 48px;
}

.principles h2,
.section-block h2,
.result-panel h2,
.detail-card h2 {
  color: #111b2d;
  font-size: 24px;
}

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

.info-pill {
  display: grid;
  gap: 8px;
  padding: 20px;
  border: 1px solid #d8e0eb;
  border-radius: 8px;
  background: #fff;
}

.mini-icon,
.tile-badge {
  padding: 6px 9px;
  background: #eef5ff;
  color: #164682;
  font-size: 13px;
}

.info-pill span,
.scenario-card span,
.scenario-card small,
.detail-card p,
.detail-card li,
.result-panel,
.check-list li,
.step-list li,
.learning-card p,
.ability-tile span,
.loading-panel p,
.source-notice,
.empty-state {
  color: #526174;
  line-height: 1.65;
}

.back-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 28px;
  padding: 9px 12px;
  border: 1px solid #cdd8e8;
  border-radius: 8px;
  background: #fff;
  color: #164682;
  cursor: pointer;
}

.page-title {
  margin-bottom: 34px;
}

.page-title h1 {
  font-size: 44px;
}

.scenario-grid,
.ability-map,
.detail-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.scenario-card,
.ability-tile {
  min-height: 230px;
  background: #fff;
  color: #164682;
}

.scenario-card strong,
.ability-tile strong,
.learning-card strong {
  color: #111b2d;
  font-size: 21px;
  line-height: 1.3;
}

.scenario-card small {
  display: block;
  padding-top: 12px;
  border-top: 1px solid #e3e9f2;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 28px;
}

.section-block,
.result-panel,
.detail-card,
.learning-card,
.loading-panel {
  padding: 24px;
  border: 1px solid #d8e0eb;
  border-radius: 8px;
  background: #fff;
}

.loading-panel {
  max-width: 760px;
}

.loading-panel h1 {
  margin: 14px 0 12px;
  color: #111b2d;
  font-size: 36px;
  line-height: 1.2;
}

.source-notice {
  margin: -6px 0 18px;
  font-size: 14px;
}

.empty-state {
  padding: 18px;
  border: 1px dashed #cdd8e8;
  border-radius: 8px;
  background: #fff;
}

.section-block + .section-block {
  margin-top: 18px;
}

.check-list,
.result-panel ul,
.detail-card ul {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.check-list li span {
  display: inline-grid;
  flex: 0 0 22px;
  place-items: center;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border-radius: 50%;
  background: #e7f7b8;
  color: #1d6b8f;
  font-size: 13px;
  font-weight: 800;
}

.step-list {
  display: grid;
  gap: 12px;
  padding-left: 24px;
  margin-bottom: 0;
}

.result-panel {
  position: sticky;
  top: 92px;
  align-self: start;
  background: #f9fbff;
}

.result-panel h3 {
  margin: 24px 0 10px;
  color: #111b2d;
}

.ability-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.ability-chips button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border: 1px solid #cdd8e8;
  border-radius: 8px;
  background: #fff;
  color: #164682;
  cursor: pointer;
}

.ability-chips.compact button {
  font-size: 14px;
}

.learning-lanes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 28px;
}

.learning-card {
  min-height: 260px;
}

.track-number {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  margin-bottom: 18px;
  border-radius: 50%;
  background: #0f5fa8;
  color: #fff;
  font-weight: 800;
}

.ability-map {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.ability-tile {
  min-height: 210px;
}

.ability-detail {
  max-width: 1080px;
}

.ability-icon {
  width: 58px;
  height: 58px;
  flex: 0 0 auto;
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
  font-size: 15px;
}

.ability-hero {
  display: flex;
  gap: 22px;
  align-items: flex-start;
  margin-bottom: 28px;
  padding: 30px;
  border-radius: 8px;
  background: #0f5fa8;
  color: #fff;
}

.ability-hero h1 {
  margin-bottom: 10px;
  font-size: 42px;
  line-height: 1.2;
}

.ability-hero p {
  max-width: 760px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.7;
}

.ability-hero .eyebrow {
  color: #e7f7b8;
}

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

@media (max-width: 920px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
    padding: 16px 24px;
  }

  .topnav {
    flex-wrap: wrap;
  }

  .home,
  .page {
    width: 100%;
    max-width: 720px;
    padding: 32px 16px 72px;
  }

  .hero,
  .entry-grid,
  .principle-list,
  .scenario-grid,
  .two-column,
  .learning-lanes,
  .ability-map,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .hero h1,
  .page-title h1 {
    font-size: 34px;
  }

  .entry-card strong {
    font-size: 24px;
  }

  .hero > *,
  .hero-panel,
  .entry-card,
  .scenario-card,
  .ability-tile,
  .section-block,
  .result-panel,
  .detail-card,
  .learning-card,
  .loading-panel {
    min-width: 0;
  }

  .result-panel {
    position: static;
  }
}