:root {
  color-scheme: dark;
  --bg: #06100f;
  --panel: #101a18;
  --panel-2: #14221f;
  --text: #f7f4e8;
  --muted: #9fb0aa;
  --line: rgba(247, 244, 232, 0.14);
  --mint: #5ce1a5;
  --amber: #ffcc33;
  --coral: #ff5c7a;
  --blue: #6aa7ff;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, rgba(92, 225, 165, 0.08), transparent 360px),
    radial-gradient(circle at 84% 16%, rgba(106, 167, 255, 0.18), transparent 320px),
    var(--bg);
  color: var(--text);
  font-family: Arial, "Microsoft YaHei", system-ui, sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 4vw, 56px);
  border-bottom: 1px solid var(--line);
  background: rgba(6, 16, 15, 0.86);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: #06100f;
  background: var(--mint);
  border-radius: 8px;
  font-weight: 900;
}

.brand strong,
.brand em {
  display: block;
}

.brand em {
  margin-top: 2px;
  color: var(--muted);
  font-style: normal;
  font-size: 13px;
}

.nav {
  display: flex;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}

.nav a:hover {
  color: var(--text);
}

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

.hero {
  min-height: 620px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 360px);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  padding: 72px 0 40px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--mint);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  max-width: 780px;
  font-size: clamp(48px, 7vw, 92px);
  line-height: 1.02;
}

.lede {
  max-width: 720px;
  margin-top: 24px;
  color: var(--muted);
  font-size: clamp(18px, 2.5vw, 24px);
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  font-weight: 800;
}

.button.primary {
  color: #06100f;
  background: var(--mint);
  border-color: var(--mint);
}

.button:hover,
.video-link:hover,
.archive-toggle:hover {
  transform: translateY(-1px);
}

.latest-panel {
  border: 1px solid var(--line);
  background: rgba(16, 26, 24, 0.78);
  border-radius: 8px;
  overflow: hidden;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.panel-header strong {
  color: var(--text);
}

.poster-wrap {
  position: relative;
  aspect-ratio: 9 / 16;
  background: var(--panel-2);
}

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

#poster-fallback {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--muted);
}

.section {
  padding: 72px 0;
  border-top: 1px solid var(--line);
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
}

h2 {
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.05;
}

.daily-grid {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 20px;
}

.day-summary,
.topic-card,
.archive-day,
.workflow-grid div {
  border: 1px solid var(--line);
  background: rgba(16, 26, 24, 0.84);
  border-radius: 8px;
}

.day-summary {
  padding: 22px;
  align-self: start;
}

.date {
  color: var(--mint);
  font-weight: 900;
}

.day-summary h3 {
  margin: 12px 0 10px;
  font-size: 34px;
  line-height: 1.08;
}

.summary-text {
  color: var(--muted);
  line-height: 1.5;
}

.video-link {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 8px;
  color: #06100f;
  background: var(--amber);
  font-weight: 900;
}

.video-link.pending {
  color: var(--muted);
  background: rgba(247, 244, 232, 0.08);
  pointer-events: none;
}

.topic-list {
  display: grid;
  gap: 12px;
}

.topic-card {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 16px;
  transition: border-color 160ms ease, background 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.topic-card[data-href] {
  cursor: pointer;
}

.topic-card[data-href]:hover,
.topic-card[data-href]:focus-visible {
  border-color: rgba(92, 225, 165, 0.72);
  background: rgba(20, 34, 31, 0.98);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.22);
  outline: none;
  transform: translateY(-2px);
}

.topic-card[data-href]:hover .topic-main strong a,
.topic-card[data-href]:focus-visible .topic-main strong a {
  color: var(--mint);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.rank {
  color: var(--mint);
  font-size: 30px;
  font-weight: 900;
}

.topic-main strong {
  display: block;
  font-size: 21px;
  overflow-wrap: anywhere;
}

.repo {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 13px;
  overflow-wrap: anywhere;
}

.angle {
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.45;
}

.metrics {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: flex-end;
  color: var(--amber);
  font-weight: 900;
  white-space: nowrap;
}

.metrics span:last-child {
  color: var(--muted);
  font-size: 13px;
}

.archive-list {
  display: grid;
  gap: 14px;
}

.archive-day {
  padding: 0;
  overflow: hidden;
}

.archive-summary {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr) auto auto;
  gap: 16px;
  align-items: center;
  padding: 18px;
}

.archive-day p {
  color: var(--muted);
}

.archive-day .video-link {
  margin-top: 0;
}

.archive-toggle {
  min-height: 46px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  background: rgba(247, 244, 232, 0.08);
  font: inherit;
  font-weight: 900;
  cursor: pointer;
}

.archive-topics {
  display: grid;
  gap: 12px;
  padding: 0 18px 18px;
}

.workflow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.workflow-grid div {
  padding: 18px;
}

.workflow-grid strong,
.workflow-grid span {
  display: block;
}

.workflow-grid strong {
  color: var(--mint);
  font-size: 22px;
}

.workflow-grid span {
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.45;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 42px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

@media (max-width: 860px) {
  .topbar,
  .section-head,
  .footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    justify-content: space-between;
  }

  .hero,
  .daily-grid,
  .archive-summary,
  .workflow-grid {
    grid-template-columns: 1fr;
  }

  .latest-panel {
    max-width: 420px;
  }

  .topic-card {
    grid-template-columns: 52px minmax(0, 1fr);
  }

  .metrics {
    grid-column: 2;
    align-items: flex-start;
  }
}

.tutorial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.tutorial-card,.script-panel{border:1px solid var(--line);background:rgba(16,26,24,.84);border-radius:8px}.tutorial-card{display:flex;flex-direction:column;gap:12px;min-height:230px;padding:18px}.tutorial-card strong{color:var(--mint);font-size:21px}.tutorial-card p,.script-panel p{color:var(--muted);line-height:1.55}code{display:block;padding:12px;border:1px solid rgba(247,244,232,.1);border-radius:8px;color:var(--amber);background:rgba(0,0,0,.22);font-family:Consolas,"SFMono-Regular",monospace;font-size:13px;line-height:1.45;overflow-wrap:anywhere}.script-panel{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:16px;padding:20px}.script-panel h3{margin:0 0 10px;font-size:28px;line-height:1.1}.script-panel code{margin-top:14px}.resource-link{display:inline-flex;width:fit-content;margin:8px 10px 0 0;padding:10px 13px;border:1px solid rgba(92,225,165,.42);border-radius:8px;color:var(--mint);background:rgba(92,225,165,.08);font-weight:800}.resource-link:hover,.resource-link:focus-visible{border-color:rgba(92,225,165,.8);color:#06100f;background:var(--mint)}@media(max-width:860px){.tutorial-grid,.script-panel{grid-template-columns:1fr}}