:root {
  color-scheme: dark;
  --bg: #08100f;
  --panel: rgba(18, 30, 32, 0.82);
  --panel-strong: rgba(24, 39, 42, 0.94);
  --line: rgba(221, 235, 232, 0.14);
  --text: #edf7f4;
  --muted: rgba(237, 247, 244, 0.72);
  --soft: rgba(237, 247, 244, 0.54);
  --accent: #7cf3d5;
  --accent-2: #7aa7ff;
  --warn: #f0b95e;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 8%, rgba(124, 243, 213, 0.18), transparent 30%),
    radial-gradient(circle at 82% 2%, rgba(122, 167, 255, 0.16), transparent 32%),
    linear-gradient(180deg, #08100f 0%, #0d1718 46%, #07100f 100%);
}

a {
  color: inherit;
}

.article-page {
  position: relative;
  overflow: hidden;
}

.article-page::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(221, 235, 232, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(221, 235, 232, 0.03) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.72), transparent 88%);
}

.article-shell {
  position: relative;
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.article-topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 68px;
  padding: 12px 0;
  backdrop-filter: blur(18px);
}

.article-logo,
.article-nav {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.article-logo-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid rgba(124, 243, 213, 0.36);
  border-radius: 50%;
  color: #061411;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  font-weight: 850;
}

.article-logo span:last-child {
  display: grid;
  gap: 2px;
}

.article-logo small,
.article-nav a,
.article-meta,
.article-kicker,
.toc span,
.note-label,
.cta small {
  color: var(--soft);
  font-size: 13px;
}

.article-logo strong,
.article-nav a {
  font-weight: 760;
}

.article-nav a {
  text-decoration: none;
}

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

.article-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 42px;
  align-items: end;
  padding: 72px 0 46px;
}

.article-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  color: var(--accent);
  letter-spacing: 0;
  font-weight: 800;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.12;
  letter-spacing: 0;
}

h1 {
  max-width: 780px;
  font-size: clamp(42px, 7vw, 86px);
}

.article-lead {
  max-width: 760px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.8;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.article-meta span,
.toc a,
.pill {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.055);
}

.article-meta span,
.pill {
  padding: 8px 12px;
}

.toc {
  display: grid;
  gap: 14px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.24);
}

.toc strong {
  font-size: 18px;
}

.toc a {
  display: block;
  padding: 11px 13px;
  color: var(--muted);
  text-decoration: none;
}

.toc a:hover {
  border-color: rgba(124, 243, 213, 0.48);
  color: var(--text);
}

.article-content {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 42px;
  align-items: start;
  padding: 24px 0 70px;
}

.article-main {
  min-width: 0;
}

.article-section {
  margin-bottom: 34px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(18, 30, 32, 0.88), rgba(12, 21, 22, 0.78));
}

.article-section h2 {
  margin-bottom: 18px;
  font-size: clamp(26px, 3vw, 38px);
}

.article-section h3 {
  margin: 28px 0 10px;
  color: rgba(237, 247, 244, 0.94);
  font-size: 21px;
}

.article-section p,
.article-section li {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.9;
}

.article-section p {
  margin: 0 0 16px;
}

.article-section ul,
.article-section ol {
  margin: 14px 0 0;
  padding-left: 22px;
}

.quote-card {
  margin: 24px 0;
  padding: 22px;
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  background: rgba(124, 243, 213, 0.07);
}

.quote-card p {
  margin: 0;
  color: var(--text);
  font-size: 19px;
}

.step-grid,
.project-grid {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

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

.project-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.mini-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.045);
}

.mini-card strong {
  display: block;
  margin-bottom: 8px;
}

.mini-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
}

.article-side {
  position: sticky;
  top: 92px;
  display: grid;
  gap: 16px;
}

.side-panel,
.cta {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-strong);
}

.side-panel strong,
.cta strong {
  display: block;
  margin-bottom: 10px;
}

.side-panel p,
.cta p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.cta {
  background:
    linear-gradient(135deg, rgba(124, 243, 213, 0.14), rgba(122, 167, 255, 0.12)),
    var(--panel-strong);
}

.cta a,
.article-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  margin-top: 16px;
  padding: 0 16px;
  border: 1px solid rgba(124, 243, 213, 0.34);
  border-radius: 999px;
  color: #061411;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  font-weight: 850;
  text-decoration: none;
}

.article-footer {
  padding: 34px 0 58px;
  border-top: 1px solid var(--line);
  color: var(--soft);
}

.article-footer a {
  color: var(--accent);
}

@media (max-width: 920px) {
  .article-hero,
  .article-content {
    grid-template-columns: 1fr;
  }

  .article-side {
    position: static;
  }

  .project-grid,
  .step-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .article-shell {
    width: min(100% - 20px, 1120px);
  }

  .article-topbar {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .article-nav {
    flex-wrap: wrap;
  }

  .article-hero {
    padding-top: 42px;
  }

  .article-section {
    padding: 22px 18px;
  }

  h1 {
    font-size: 38px;
  }
}