:root {
  --content-ink: #273338;
  --content-muted: #60757a;
  --content-soft: #84959a;
  --content-cyan: #2ebabc;
  --content-blue: #438cff;
  --content-line: rgba(39, 51, 56, .13);
  --content-surface: rgba(255, 255, 255, .82);
  --content-surface-strong: #fff;
  --content-radius: 6px;
  --content-max: 1240px;
  --content-gutter: clamp(24px, 6vw, 88px);
}

/* Shared long-form page primitives. Keep page-specific decoration outside this file. */
.resource-page {
  min-width: 0;
  color: var(--content-ink);
  background: #f3f8f8;
  font-family: "HarmonyOS Embedded", "HarmonyOS Sans SC Medium", "HarmonyOS Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;
}

.resource-hero {
  position: relative;
  display: grid;
  min-height: max(620px, 100svh);
  overflow: hidden;
  isolation: isolate;
  background: #fff;
}

.resource-scene {
  position: absolute;
  z-index: -2;
  inset: 0;
  overflow: hidden;
  pointer-events: auto;
}

.resource-scene::before,
.resource-scene::after {
  position: absolute;
  display: block;
  width: 142%;
  height: clamp(84px, 13vw, 210px);
  content: "";
  transform: translate3d(var(--scene-shift-x, 0px), var(--scene-shift-y, 0px), 0) rotate(21deg);
  transform-origin: center;
  pointer-events: none;
  will-change: transform;
}

.resource-scene::before {
  top: 29%;
  left: -22%;
  background: linear-gradient(104deg, rgba(229, 249, 249, .72) 0%, rgba(138, 233, 231, .64) 48%, rgba(46, 186, 188, .77) 100%);
  box-shadow: 0 20px 46px rgba(46, 186, 188, .13);
}

.resource-scene::after {
  top: 61%;
  left: 19%;
  z-index: -1;
  height: clamp(54px, 8vw, 120px);
  background: linear-gradient(104deg, rgba(246, 253, 253, .88) 0%, rgba(158, 237, 235, .72) 55%, rgba(67, 140, 255, .46) 100%);
  opacity: .75;
}

.resource-scene .scene-glow {
  position: absolute;
  z-index: 2;
  width: clamp(160px, 24vw, 360px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, .6), rgba(255, 255, 255, 0) 68%);
  opacity: 0;
  pointer-events: none;
  mix-blend-mode: screen;
  transition: opacity .16s ease;
  transform: translate3d(-50%, -50%, 0);
}

.scene-ripple {
  position: absolute;
  z-index: 5;
  width: 14px;
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, .72);
  border-radius: 50%;
  box-shadow: 0 0 0 1px rgba(46, 186, 188, .3), 0 0 22px rgba(67, 140, 255, .36);
  pointer-events: none;
  transform: translate(-50%, -50%);
  animation: scene-ripple .62s cubic-bezier(.2, .7, .2, 1) forwards;
}

@keyframes scene-ripple {
  from { opacity: .74; transform: translate(-50%, -50%) scale(1); }
  to { opacity: 0; transform: translate(-50%, -50%) scale(18); }
}

.resource-scene.has-pointer .scene-glow { opacity: .55; }

.resource-hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, .95fr);
  align-items: center;
  width: min(var(--content-max), calc(100% - (var(--content-gutter) * 2)));
  min-height: inherit;
  margin: 0 auto;
  padding: calc(var(--site-nav-height, 64px) + clamp(44px, 8vh, 96px)) 0 clamp(82px, 11vh, 132px);
  box-sizing: border-box;
}

.resource-hero .copy-stage {
  grid-column: 2;
  justify-self: end;
  width: min(100%, 650px);
  text-align: right;
}

.resource-hero .copy-stage .title {
  max-width: 100%;
  font-size: clamp(72px, 10.5vw, 168px);
  line-height: .94;
  text-wrap: balance;
}

.resource-hero .copy-stage .subtitle {
  margin-top: clamp(18px, 3vw, 34px);
  font-size: clamp(24px, 3.1vw, 52px);
  line-height: 1.14;
  text-wrap: balance;
}

.resource-hero-note {
  position: absolute;
  z-index: 3;
  right: var(--content-gutter);
  bottom: clamp(104px, 13vh, 164px);
  width: min(540px, calc(100% - (var(--content-gutter) * 2)));
  color: var(--content-muted);
  text-align: right;
}

.resource-hero-note strong,
.resource-hero-note .hero-note-copy,
.resource-hero-note .hero-join-hint {
  display: block;
}

.resource-hero-note strong {
  color: #236b70;
  font-size: clamp(14px, 1.35vw, 18px);
  font-weight: 600;
  line-height: 1.35;
}

.resource-hero-note .hero-note-copy {
  margin-top: 8px;
  font-size: clamp(13px, 1.2vw, 16px);
  line-height: 1.65;
}

.resource-hero-note .hero-join-hint {
  margin-top: 6px;
  color: #789095;
  font-size: clamp(12px, 1.05vw, 14px);
  line-height: 1.6;
}

.resource-hero-actions {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.scroll-cue.resource-scroll-cue {
  position: absolute;
  z-index: 4;
  bottom: clamp(22px, 4vh, 42px);
  left: 50%;
  transform: translateX(-50%);
}

.content-section {
  position: relative;
  padding: clamp(72px, 10vw, 144px) 0;
  background: #f3f8f8;
}

.content-section:nth-of-type(even) {
  background: #edf5f5;
}

.content-inner {
  width: min(var(--content-max), calc(100% - (var(--content-gutter) * 2)));
  margin: 0 auto;
}

.content-header {
  display: grid;
  grid-template-columns: minmax(0, .75fr) minmax(0, 1.25fr);
  align-items: end;
  gap: clamp(24px, 5vw, 90px);
  margin-bottom: clamp(36px, 5vw, 64px);
}

.content-kicker {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--content-cyan);
  font-size: clamp(12px, 1.1vw, 15px);
  font-weight: 650;
  letter-spacing: .08em;
  line-height: 1.3;
  text-transform: uppercase;
}

.content-kicker::before {
  width: 34px;
  height: 2px;
  background: linear-gradient(90deg, var(--content-cyan), var(--content-blue));
  content: "";
}

.content-title {
  margin: 0;
  color: var(--content-ink);
  font-size: clamp(38px, 5.2vw, 76px);
  font-weight: 650;
  letter-spacing: 0;
  line-height: 1.02;
  text-wrap: balance;
}

.content-lede,
.prose {
  max-width: 760px;
  margin: 0;
  color: var(--content-muted);
  font-size: clamp(16px, 1.5vw, 21px);
  line-height: 1.78;
  text-wrap: pretty;
}

.content-lede + .content-lede,
.prose + .prose { margin-top: 14px; }

.content-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(14px, 2vw, 24px);
}

.content-card,
.fact-card {
  min-width: 0;
  padding: clamp(22px, 3vw, 38px);
  border: 1px solid rgba(39, 51, 56, .1);
  border-radius: var(--content-radius);
  background: var(--content-surface);
  box-shadow: 0 14px 34px rgba(35, 78, 81, .06);
}

.content-card h3,
.fact-card h3 {
  margin: 0;
  color: var(--content-ink);
  font-size: clamp(20px, 2vw, 30px);
  font-weight: 620;
  line-height: 1.2;
  text-wrap: balance;
}

.content-card p,
.fact-card p {
  margin: 12px 0 0;
  color: var(--content-muted);
  font-size: clamp(14px, 1.25vw, 17px);
  line-height: 1.65;
}

.fact-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(12px, 1.8vw, 22px);
}

.fact-card {
  min-height: 148px;
}

.fact-card .fact-value {
  display: block;
  color: var(--content-cyan-dark, #239ea0);
  font-size: clamp(30px, 3.5vw, 54px);
  font-weight: 600;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

[data-count] {
  font-variant-numeric: tabular-nums;
}

.fact-card .fact-label {
  display: block;
  margin-top: 15px;
  color: var(--content-muted);
  font-size: clamp(13px, 1.1vw, 16px);
  line-height: 1.45;
}

.guide-list {
  display: grid;
  gap: clamp(18px, 2.5vw, 32px);
}

.guide-step {
  display: grid;
  grid-template-columns: minmax(44px, 72px) minmax(0, .8fr) minmax(240px, 1.2fr);
  align-items: start;
  gap: clamp(16px, 3vw, 42px);
  padding: clamp(22px, 3vw, 38px) 0;
  border-top: 1px solid var(--content-line);
}

.guide-step:last-child { border-bottom: 1px solid var(--content-line); }

.step-number {
  display: grid;
  place-items: center;
  width: clamp(42px, 4vw, 56px);
  aspect-ratio: 1;
  border: 1px solid rgba(46, 186, 188, .4);
  border-radius: 50%;
  color: var(--content-cyan-dark, #239ea0);
  background: rgba(255, 255, 255, .66);
  font-size: clamp(15px, 1.35vw, 19px);
  font-weight: 650;
}

.guide-step h3 {
  margin: 0;
  color: var(--content-ink);
  font-size: clamp(20px, 2.1vw, 31px);
  font-weight: 620;
  line-height: 1.22;
  text-wrap: balance;
}

.guide-step p {
  margin: 10px 0 0;
  color: var(--content-muted);
  font-size: clamp(14px, 1.25vw, 17px);
  line-height: 1.72;
  text-wrap: pretty;
}

.media-frame {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(39, 51, 56, .12);
  border-radius: var(--content-radius);
  background: #fff;
  box-shadow: 0 14px 32px rgba(35, 78, 81, .08);
}

.media-frame img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 460px;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: #f8fbfb;
}

.media-caption {
  padding: 11px 14px 13px;
  color: var(--content-muted);
  font-size: clamp(12px, 1.1vw, 14px);
  line-height: 1.5;
}

.media-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(14px, 2vw, 24px);
}

.media-strip {
  display: flex;
  gap: clamp(12px, 2vw, 24px);
  overflow-x: auto;
  padding: 4px 2px 14px;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
}

.media-strip > .media-frame {
  flex: 0 0 min(420px, 78vw);
  scroll-snap-align: start;
}

.release-layout {
  display: grid;
  grid-template-columns: minmax(220px, .35fr) minmax(0, 1fr);
  align-items: start;
  gap: clamp(28px, 5vw, 78px);
}

.release-mark {
  display: grid;
  place-items: center;
  width: min(180px, 100%);
  aspect-ratio: 1;
  padding: 18px;
  border: 1px solid rgba(46, 186, 188, .26);
  border-radius: var(--content-radius);
  background: rgba(255, 255, 255, .72);
}

.release-mark img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  image-rendering: pixelated;
}

.release-version {
  margin: 0;
  color: var(--content-ink);
  font-size: clamp(34px, 4.2vw, 62px);
  font-weight: 650;
  line-height: 1;
}

.release-meta {
  margin-top: 12px;
  color: var(--content-muted);
  font-size: clamp(15px, 1.3vw, 18px);
  line-height: 1.55;
}

.release-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.code-value {
  display: block;
  max-width: 100%;
  margin-top: 14px;
  padding: 12px 14px;
  overflow-wrap: anywhere;
  border: 1px solid rgba(39, 51, 56, .12);
  border-radius: 4px;
  color: #37686d;
  background: rgba(255, 255, 255, .65);
  font: 500 clamp(11px, 1.05vw, 14px)/1.5 ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
}

.release-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--content-line);
}

.release-entry {
  display: grid;
  grid-template-columns: minmax(130px, .32fr) minmax(0, 1fr);
  gap: clamp(18px, 4vw, 68px);
  padding: clamp(22px, 3vw, 38px) 0;
  border-bottom: 1px solid var(--content-line);
}

.release-entry time {
  color: var(--content-soft);
  font-size: clamp(14px, 1.25vw, 17px);
  line-height: 1.4;
}

.release-entry h3 {
  margin: 0;
  color: var(--content-ink);
  font-size: clamp(22px, 2.3vw, 34px);
  font-weight: 620;
  line-height: 1.2;
}

.release-changes {
  margin: 12px 0 0;
  padding-left: 1.15em;
  color: var(--content-muted);
  font-size: clamp(14px, 1.25vw, 17px);
  line-height: 1.72;
}

.release-changes li + li { margin-top: 7px; }

.text-en,
.lang-en { display: none; }

[data-lang="en"] .text-zh,
[data-lang="en"] .lang-zh { display: none; }

[data-lang="en"] .text-en,
[data-lang="en"] .lang-en { display: inline; }

@media (max-width: 920px) {
  .resource-hero-content {
    grid-template-columns: minmax(0, 1fr);
    align-content: start;
    padding-top: calc(var(--site-nav-height, 64px) + 74px);
  }

  .resource-hero .copy-stage {
    grid-column: 1;
    margin-top: clamp(44px, 10vh, 110px);
  }

  .resource-hero-note {
    right: var(--content-gutter);
    bottom: 96px;
  }

  .content-header { grid-template-columns: 1fr; align-items: start; }
  .content-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .fact-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .guide-step { grid-template-columns: 56px minmax(0, 1fr); }
  .guide-step .media-frame { grid-column: 2; }
  .release-layout { grid-template-columns: 1fr; }
  .release-mark { width: 132px; }
}

@media (max-width: 620px) {
  :root { --content-gutter: 20px; }

  .resource-hero { min-height: 680px; }
  .resource-scene::before { top: 35%; left: -48%; width: 190%; height: 118px; }
  .resource-scene::after { top: 68%; left: -34%; width: 186%; height: 72px; }
  .resource-hero .copy-stage { margin-top: 54px; }
  .resource-hero .copy-stage .title { font-size: clamp(62px, 19vw, 104px); }
  .resource-hero .copy-stage .subtitle { font-size: clamp(21px, 6.5vw, 34px); }
  .resource-hero-note { bottom: 88px; width: calc(100% - 40px); text-align: right; }
  .content-section { padding: 64px 0; }
  .content-grid,
  .fact-grid,
  .media-grid { grid-template-columns: 1fr; }
  .guide-step { grid-template-columns: 44px minmax(0, 1fr); gap: 14px; }
  .guide-step .media-frame { grid-column: 2; }
  .step-number { width: 42px; }
  .release-entry { grid-template-columns: 1fr; gap: 10px; }
  .media-frame img { max-height: 320px; }
}

@media (prefers-reduced-motion: reduce) {
  .resource-scene::before,
  .resource-scene::after,
  .resource-scene .scene-glow { transition: none !important; }
}