:root {
  color-scheme: light;
  --release-bg: #f7f4ef;
  --release-bg-2: #fffdf8;
  --release-surface: rgba(255, 255, 255, 0.82);
  --release-border: rgba(80, 70, 53, 0.12);
  --release-text: #1f2740;
  --release-muted: #5f6480;
  --release-accent: #ff8f5a;
  --release-accent-2: #8c7dff;
  --release-accent-3: #2cc3a7;
  --release-shadow: 0 24px 72px rgba(109, 93, 68, 0.16);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body.release-page {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at 12% 12%, rgba(255, 143, 90, 0.12), transparent 24%),
    radial-gradient(circle at 80% 10%, rgba(140, 125, 255, 0.12), transparent 22%),
    linear-gradient(180deg, var(--release-bg), var(--release-bg-2));
  color: var(--release-text);
  min-height: 100vh;
}

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

.release-skip {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 20;
  padding: 0.75rem 1rem;
  border-radius: 999px;
  background: #fff;
  box-shadow: var(--release-shadow);
  transition: top 0.2s ease;
}

.release-skip:focus {
  top: 1rem;
}

.release-header {
  position: sticky;
  top: 0;
  z-index: 15;
  background: rgba(247, 244, 239, 0.82);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(80, 70, 53, 0.08);
}

.release-shell {
  width: min(1200px, calc(100% - 2rem));
  margin: 0 auto;
  min-height: 4.7rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.release-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
}

.release-mark {
  width: 2.8rem;
  aspect-ratio: 1;
  border-radius: 1rem;
  background: linear-gradient(145deg, #fff, #f0e5d8);
  border: 1px solid rgba(80, 70, 53, 0.08);
  position: relative;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.5);
}

.release-mark span:first-child {
  position: absolute;
  left: 0.58rem;
  top: 0.62rem;
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--release-accent), #ffb07f);
}

.release-mark span:last-child {
  position: absolute;
  right: 0.48rem;
  bottom: 0.58rem;
  width: 0.95rem;
  height: 0.26rem;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--release-accent-2), var(--release-accent-3));
}

.release-brand strong {
  display: block;
  font-size: 1rem;
}

.release-brand small {
  display: block;
  color: var(--release-muted);
}

.release-nav {
  display: flex;
  align-items: center;
  gap: 1.15rem;
}

.release-nav a {
  color: var(--release-muted);
  font-size: 0.95rem;
}

.release-menu {
  display: none;
  width: 3rem;
  height: 3rem;
  border: 1px solid var(--release-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.22rem;
}

.release-menu span {
  width: 1rem;
  height: 1.5px;
  background: var(--release-text);
  border-radius: 999px;
}

.release-hero,
.release-timeline,
.release-routes,
.release-checklist,
.release-guides,
.release-faq,
.release-footer {
  width: min(1200px, calc(100% - 2rem));
  margin: 0 auto;
}

.release-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.98fr) minmax(320px, 1.02fr);
  gap: 2rem;
  align-items: center;
  padding: 4rem 0 2rem;
}

.release-eyebrow,
.release-section-kicker {
  margin: 0 0 0.85rem;
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--release-muted);
}

.release-hero h1 {
  margin: 0;
  font-size: clamp(2.8rem, 6vw, 5.2rem);
  line-height: 0.96;
  letter-spacing: -0.07em;
}

.release-hero h1 span {
  display: block;
}

.release-lead {
  margin: 1.35rem 0 0;
  max-width: 38rem;
  color: var(--release-muted);
  line-height: 1.88;
  font-size: 1.04rem;
}

.release-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.6rem;
}

.release-button {
  min-height: 3.2rem;
  padding: 0.8rem 1.25rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border: 1px solid transparent;
  font-weight: 700;
}

.release-button-primary {
  background: linear-gradient(135deg, #231f35, #0f0d1d);
  color: #fff;
  box-shadow: 0 18px 34px rgba(35, 31, 53, 0.16);
}

.release-button-secondary {
  background: rgba(255, 255, 255, 0.8);
  border-color: var(--release-border);
}

.release-note {
  margin-top: 1rem;
  color: var(--release-muted);
}

.release-stage {
  position: relative;
  min-height: 540px;
  border-radius: 2rem;
  background:
    radial-gradient(circle at 18% 24%, rgba(255, 143, 90, 0.18), transparent 24%),
    radial-gradient(circle at 80% 18%, rgba(140, 125, 255, 0.16), transparent 26%),
    linear-gradient(180deg, #fffaf4, #f5eee2);
  border: 1px solid rgba(80, 70, 53, 0.08);
  box-shadow: var(--release-shadow);
  overflow: hidden;
}

.release-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(140, 125, 255, 0.18);
}

.release-ring-a {
  width: 18rem;
  height: 18rem;
  right: 1.8rem;
  top: 1.8rem;
}

.release-ring-b {
  width: 13rem;
  height: 13rem;
  left: 2rem;
  bottom: 1.8rem;
}

.release-card {
  position: absolute;
  width: min(54%, 270px);
  min-height: 170px;
  border-radius: 1.35rem;
  padding: 1.1rem;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(80, 70, 53, 0.08);
  box-shadow: 0 18px 30px rgba(95, 82, 57, 0.08);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.release-card span {
  display: inline-flex;
  width: fit-content;
  padding: 0.3rem 0.6rem;
  border-radius: 999px;
  background: rgba(140, 125, 255, 0.12);
  color: #5547cc;
  font-size: 0.8rem;
}

.release-card strong {
  font-size: 1.35rem;
}

.release-card p {
  margin: 0;
  color: var(--release-muted);
  line-height: 1.7;
}

.release-card-top {
  right: 2rem;
  top: 2rem;
}

.release-card-bottom {
  left: 2rem;
  bottom: 2rem;
}

.release-tape {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) rotate(-12deg);
  width: 11rem;
  height: 11rem;
  border-radius: 50%;
  background: linear-gradient(180deg, #231f35, #0f0d1d);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 2rem;
  letter-spacing: 0.15em;
  box-shadow: 0 20px 36px rgba(35, 31, 53, 0.18);
}

.release-timeline {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  padding: 0.8rem 0 1.2rem;
}

.release-timeline-card {
  padding: 1.2rem;
  border-radius: 1.3rem;
  background: var(--release-surface);
  border: 1px solid var(--release-border);
  box-shadow: 0 14px 28px rgba(91, 74, 53, 0.06);
}

.release-timeline-card.is-active {
  background: linear-gradient(180deg, #fff, #fbf4e9);
}

.release-timeline-card span {
  display: inline-flex;
  padding: 0.28rem 0.6rem;
  border-radius: 999px;
  background: rgba(255, 143, 90, 0.14);
  color: #b75e2d;
}

.release-timeline-card h2 {
  margin: 0.85rem 0 0.45rem;
  font-size: 1.08rem;
}

.release-timeline-card p {
  margin: 0;
  color: var(--release-muted);
  line-height: 1.8;
}

.release-routes {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 1fr);
  gap: 1rem;
  padding: 1rem 0 1.2rem;
}

.release-route-card,
.release-card-block {
  border-radius: 1.4rem;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--release-border);
  box-shadow: 0 16px 30px rgba(88, 74, 53, 0.08);
  padding: 1.35rem;
}

.release-route-card h2,
.release-card-block h2,
.release-faq-head h2 {
  margin: 0;
  font-size: clamp(1.55rem, 2.2vw, 2.35rem);
}

.release-route-card p,
.release-card-block p {
  color: var(--release-muted);
  line-height: 1.9;
}

.release-route-list {
  display: grid;
  gap: 0.9rem;
}

.release-route {
  min-height: 6rem;
  padding: 1rem 1.1rem;
  border-radius: 1.2rem;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid var(--release-border);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.25rem;
}

.release-route.is-active-route {
  border-color: rgba(255, 143, 90, 0.32);
  box-shadow: 0 16px 30px rgba(255, 143, 90, 0.12);
  background: linear-gradient(180deg, #fff, #fff4ec);
}

.release-route span {
  color: #a35c2e;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
}

.release-route strong {
  font-size: 1.06rem;
}

.release-route small {
  color: var(--release-muted);
}

.release-checklist {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(280px, 0.98fr);
  gap: 1rem;
  padding: 1rem 0 1.2rem;
}

.release-card-block ul {
  margin: 1rem 0 0;
  padding-left: 1.1rem;
  line-height: 1.9;
}

.release-card-block-soft {
  background: linear-gradient(180deg, #fff, #f8efe2);
}

.release-card-block-soft a {
  display: inline-flex;
  margin-top: 1rem;
  color: #a85a28;
  font-weight: 700;
}

.release-guides {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  padding: 1rem 0 1.2rem;
}

.release-guide {
  padding: 1.1rem;
  border-radius: 1.2rem;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--release-border);
}

.release-guide span {
  color: #aa5c2b;
  letter-spacing: 0.16em;
  font-size: 0.8rem;
}

.release-guide h3 {
  margin: 0.75rem 0 0.45rem;
}

.release-guide p {
  margin: 0;
  color: var(--release-muted);
  line-height: 1.8;
}

.release-faq {
  padding: 1rem 0 2rem;
}

.release-faq-head {
  margin-bottom: 1rem;
}

.release-faq-list {
  display: grid;
  gap: 0.9rem;
}

.release-faq-item {
  border-radius: 1.2rem;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid var(--release-border);
}

.release-faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 1.05rem 1.1rem;
  font-weight: 700;
}

.release-faq-item summary::-webkit-details-marker {
  display: none;
}

.release-faq-item p {
  margin: 0;
  padding: 0 1.1rem 1.1rem;
  color: var(--release-muted);
  line-height: 1.85;
}

.release-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0 2.4rem;
  color: var(--release-muted);
}

.release-footer strong {
  color: var(--release-text);
}

.release-footer p {
  margin: 0.35rem 0 0;
}

@media (max-width: 1100px) {
  .release-hero,
  .release-routes,
  .release-checklist {
    grid-template-columns: 1fr;
  }

  .release-timeline,
  .release-guides {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 860px) {
  .release-nav {
    display: none;
  }

  .release-menu {
    display: inline-flex;
  }

  .release-nav.is-open {
    display: flex;
    position: absolute;
    left: 1rem;
    right: 1rem;
    top: 4.7rem;
    flex-direction: column;
    padding: 1rem;
    border-radius: 1rem;
    background: rgba(247, 244, 239, 0.98);
    border: 1px solid var(--release-border);
    box-shadow: var(--release-shadow);
  }

  .release-timeline,
  .release-guides {
    grid-template-columns: 1fr;
  }

  .release-hero {
    padding-top: 2.4rem;
  }
}

@media (max-width: 560px) {
  .release-shell {
    width: min(100%, calc(100% - 1rem));
  }

  .release-hero,
  .release-timeline,
  .release-routes,
  .release-checklist,
  .release-guides,
  .release-faq,
  .release-footer {
    width: calc(100% - 1rem);
  }

  .release-hero h1 {
    font-size: clamp(2.2rem, 13vw, 3.7rem);
  }

  .release-stage {
    min-height: 440px;
  }

  .release-card {
    width: 68%;
  }

  .release-footer {
    flex-direction: column;
    align-items: flex-start;
  }
}