:root {
  color-scheme: dark;
  --bg: #08090d;
  --panel: #10131b;
  --panel-strong: #151926;
  --ink: #f6f7fb;
  --muted: #9aa3b2;
  --line: rgba(255, 255, 255, 0.11);
  --blue: #7ba7ff;
  --cyan: #63e0ff;
  --orange: #ff9b66;
  --green: #9ce66e;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(115deg, rgba(123, 167, 255, 0.14), transparent 34%),
    linear-gradient(245deg, rgba(99, 224, 255, 0.12), transparent 28%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 84px),
    var(--bg);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", sans-serif;
  font-size: 15px;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
}

button,
input,
select {
  font: inherit;
}

.masthead {
  width: 100%;
  margin: 0;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  overflow: hidden;
  background:
    radial-gradient(70% 90% at 92% 18%, rgba(99, 224, 255, 0.2), transparent 52%),
    radial-gradient(58% 82% at 12% 8%, rgba(123, 167, 255, 0.16), transparent 58%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 42%),
    rgba(10, 12, 18, 0.86);
  box-shadow: none;
}

.topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 68px;
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
  padding: 0;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  width: 190px;
  min-height: 48px;
  text-decoration: none;
}

.wordmark img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 48px;
  object-fit: contain;
}

.top-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.top-links a {
  min-height: 34px;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 7px 12px;
  color: rgba(246, 247, 251, 0.7);
  font-size: 12px;
  font-weight: 760;
  text-decoration: none;
}

.top-links a:hover {
  border-color: var(--line);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.06);
}

.hero-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  width: min(1240px, calc(100% - 32px));
  min-height: 420px;
  margin: 0 auto;
  padding: clamp(34px, 6vw, 66px) 0 clamp(42px, 7vw, 78px);
}

.coming-soon {
  display: grid;
  align-content: center;
  width: min(1240px, calc(100% - 32px));
  min-height: calc(100vh - 70px);
  margin: 0 auto;
  padding: clamp(48px, 8vw, 96px) 0;
}

.about-hero {
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
  padding: clamp(52px, 8vw, 96px) 0 clamp(48px, 7vw, 84px);
}

.about-hero h1 {
  max-width: 880px;
}

.about-hero p:not(.eyebrow) {
  max-width: 780px;
  margin: 22px 0 0;
  color: rgba(246, 247, 251, 0.72);
  font-size: 16px;
  line-height: 1.85;
}

.about-handle {
  display: inline-flex;
  margin: 12px 0 0 !important;
  color: var(--cyan) !important;
  font-size: clamp(18px, 2vw, 24px) !important;
  font-weight: 850;
  text-decoration: none;
}

.about-profile-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 16px;
  max-width: 880px;
  margin-top: 26px;
}

.about-profile,
.wechat-card {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.06);
}

.about-profile p {
  margin: 0;
  color: rgba(246, 247, 251, 0.82);
  font-size: 15px;
  line-height: 1.8;
}

.about-profile p + p {
  margin-top: 6px;
}

.wechat-card h2 {
  margin: 0 0 12px;
  font-size: 16px;
}

.wechat-card p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.7;
}

.about-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.about-meta span,
.about-meta a {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  border-radius: 999px;
  padding: 0 11px;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(246, 247, 251, 0.78);
  font-size: 12px;
  font-weight: 760;
  text-decoration: none;
}

.about-meta a {
  color: var(--cyan);
}

.about-shell {
  display: grid;
  gap: 22px;
  width: min(1100px, calc(100% - 32px));
  margin: 30px auto 0;
}

.about-section,
.framework-grid article {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(16, 19, 27, 0.84);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.18);
}

.about-section {
  padding: 24px;
}

.about-section h2,
.framework-grid h2 {
  margin-top: 4px;
}

.about-section p:not(.eyebrow),
.framework-grid p {
  margin: 10px 0 0;
  color: rgba(246, 247, 251, 0.72);
  font-size: 14px;
  line-height: 1.85;
}

.framework-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.framework-grid article {
  padding: 22px;
}

.framework-grid span {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  border-radius: 999px;
  padding: 0 10px;
  background: rgba(99, 224, 255, 0.12);
  color: var(--cyan);
  font-size: 12px;
  font-weight: 900;
}

.framework-grid strong {
  color: var(--ink);
}

.coming-soon h1 {
  margin-top: 0;
}

.coming-soon p:not(.eyebrow) {
  max-width: 620px;
  margin: 18px 0 28px;
  color: rgba(246, 247, 251, 0.72);
  font-size: 16px;
  line-height: 1.8;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--cyan);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(40px, 5.8vw, 76px);
  line-height: 1.02;
  letter-spacing: -0.05em;
}

.handle {
  margin: 22px 0 0;
  color: var(--orange);
  font-size: 17px;
  font-weight: 850;
}

.intro {
  max-width: 780px;
  margin: 18px 0 0;
  color: rgba(246, 247, 251, 0.74);
  font-size: clamp(15px, 1.35vw, 17px);
  line-height: 1.82;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.primary-cta,
.secondary-cta {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0 18px;
  font-size: 13px;
  font-weight: 880;
  text-decoration: none;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.primary-cta {
  background: var(--ink);
  color: #08090d;
}

.secondary-cta {
  border: 1px solid var(--line);
  color: rgba(246, 247, 251, 0.86);
}

.primary-cta:hover,
.secondary-cta:hover {
  transform: translateY(-1px);
}

.secondary-cta:hover {
  border-color: rgba(99, 224, 255, 0.42);
  background: rgba(99, 224, 255, 0.08);
}

.signal-card {
  position: relative;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.04)),
    rgba(255, 255, 255, 0.06);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.signal-card::before {
  display: block;
  width: 46px;
  height: 4px;
  margin-bottom: 18px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--cyan), var(--blue), var(--orange));
  content: "";
}

.signal-card span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 850;
}

.signal-card strong {
  display: block;
  margin-top: 6px;
  font-size: 21px;
  line-height: 1.15;
}

.signal-card p {
  margin: 10px 0 0;
  color: rgba(246, 247, 251, 0.68);
  font-size: 13px;
}

.signal-flow {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.signal-flow div {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 2px 10px;
  align-items: center;
  min-height: 50px;
  padding: 9px 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  background: rgba(8, 9, 13, 0.35);
}

.signal-flow small {
  grid-row: 1 / span 2;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 900;
}

.signal-flow b {
  font-size: 13px;
}

.signal-flow em {
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
}

.page-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 310px;
  gap: 28px;
  width: min(1240px, calc(100% - 32px));
  margin: 30px auto 0;
  align-items: start;
}

.content-column {
  display: grid;
  min-width: 0;
  gap: 22px;
}

.hidden-controls {
  display: none;
}

.side-card,
.article-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(16, 19, 27, 0.84);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.18);
}

.section-heading p {
  margin: 0;
  color: var(--cyan);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h2 {
  margin: 4px 0 0;
  font-size: 22px;
  line-height: 1.16;
  letter-spacing: -0.03em;
}

.read-link,
.profile-actions a {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0 15px;
  text-decoration: none;
  font-size: 12px;
  font-weight: 850;
}

.article-section {
  padding-top: 8px;
}

.section-heading {
  margin-bottom: 16px;
}

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

.article-card {
  display: grid;
  grid-template-columns: 8px minmax(0, 1fr);
  gap: 18px;
  padding: 24px;
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.article-card:hover {
  border-color: rgba(99, 224, 255, 0.28);
  background: rgba(21, 25, 38, 0.94);
  transform: translateY(-1px);
}

.article-marker {
  min-height: 100%;
  border-radius: 999px;
  background: linear-gradient(var(--cyan), var(--blue) 52%, var(--orange));
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 760;
}

.platform {
  color: var(--blue);
}

h3 {
  margin: 7px 0 8px;
  font-size: clamp(20px, 2.4vw, 28px);
  line-height: 1.22;
  letter-spacing: -0.03em;
}

.summary {
  margin: 0;
  color: rgba(246, 247, 251, 0.7);
  font-size: 14px;
  line-height: 1.85;
}

.article-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 18px;
}

.read-link {
  background: var(--ink);
  color: #08090d;
  transition: filter 180ms ease, transform 180ms ease;
}

.read-link:hover {
  filter: brightness(1.04);
  transform: translateY(-1px);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag-row span,
.topic-list span,
.side-series a {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  border-radius: 999px;
  padding: 0 10px;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(246, 247, 251, 0.76);
  font-size: 11px;
  font-weight: 760;
}

.right-rail {
  position: sticky;
  top: 18px;
  display: grid;
  gap: 14px;
}

.side-card {
  padding: 16px;
}

.side-card p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.75;
}

.side-card h2 {
  margin: 0 0 12px;
  font-size: 14px;
  letter-spacing: 0;
}

.side-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.side-stats div {
  padding: 10px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
}

.side-stats strong,
.side-stats span {
  display: block;
}

.side-stats strong {
  font-size: 23px;
  line-height: 1;
}

.side-stats span {
  margin-top: 6px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.35;
}

.side-series {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.side-series a {
  text-decoration: none;
}

.side-series a.active {
  color: #081009;
  background: var(--cyan);
}

.topic-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.qr-image {
  display: block;
  width: min(180px, 100%);
  height: auto;
  margin: 8px auto 0;
  border-radius: 12px;
  background: #fff;
}

.empty {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(16, 19, 27, 0.84);
  color: var(--muted);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  width: min(1240px, calc(100% - 32px));
  margin: 52px auto 0;
  padding: 28px 0 40px;
  color: var(--muted);
  font-size: 12px;
}

.site-footer a {
  color: var(--cyan);
  font-weight: 850;
  text-decoration: none;
}

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

  .hero-panel {
    min-height: auto;
  }

  .right-rail {
    position: static;
  }

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

  .about-profile-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .topline {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 16px;
  }

  h1 {
    font-size: clamp(40px, 13vw, 62px);
  }

  .article-card {
    padding: 18px;
  }

  .site-footer {
    flex-direction: column;
  }
}