:root {
  --void: #050506;
  --ink: #f5f1e8;
  --mute: #a39c8f;
  --gold: #e8c56a;
  --gold-dim: #b0893a;
  --line: rgba(255, 245, 220, 0.12);
  --card: #101014;
  --spot: rgba(255, 214, 140, 0.26);
  --focus: #ffe29a;
  --cta: #e8c56a;
  --cta-ink: #1a1408;
  --max: 1120px;
  --pad: clamp(1rem, 3vw, 1.75rem);
  --font: system-ui, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--void);
  color: var(--ink);
  line-height: 1.65;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--gold);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: #ffe29a;
}

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: 0.8rem;
  top: -3rem;
  z-index: 80;
  background: var(--gold);
  color: var(--cta-ink);
  padding: 0.45rem 0.8rem;
  font-weight: 700;
}

.skip:focus {
  top: 0.8rem;
}

.wrap {
  width: min(var(--max), calc(100% - 2 * var(--pad)));
  margin-inline: auto;
}

.sr {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.ticker {
  border-bottom: 1px solid var(--line);
  background: #09090b;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
}

.ticker-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.55rem 0;
  flex-wrap: wrap;
}

.site-head {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(5, 5, 6, 0.72);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(14px);
}

.site-head.is-stuck {
  border-bottom-color: var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4.25rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: cover;
}

.brand small {
  display: block;
  font-weight: 500;
  font-size: 0.7rem;
  color: var(--mute);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: #101014;
  color: var(--ink);
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  font: inherit;
  cursor: pointer;
}

.menu ul {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.menu a {
  display: inline-block;
  color: var(--ink);
  text-decoration: none;
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  font-size: 0.92rem;
}

.menu a:hover,
.menu a[aria-current="page"] {
  background: rgba(232, 197, 106, 0.1);
  color: var(--gold);
}

.menu .cta {
  background: var(--cta);
  color: var(--cta-ink);
  font-weight: 700;
}

.menu .cta:hover,
.menu .cta[aria-current="page"] {
  background: #ffe29a;
  color: var(--cta-ink);
}

.stage {
  position: relative;
  overflow: hidden;
  padding: 3.2rem 0 4.2rem;
  text-align: center;
  isolation: isolate;
}

.stage::before {
  content: "";
  position: absolute;
  inset: -12% 8% auto;
  height: 62%;
  background: radial-gradient(ellipse at 50% 0%, var(--spot), transparent 68%);
  pointer-events: none;
  z-index: 0;
}

.stage::after {
  content: "";
  position: absolute;
  left: 12%;
  right: 12%;
  bottom: 6%;
  height: 90px;
  background: radial-gradient(ellipse at 50% 50%, rgba(232, 197, 106, 0.2), transparent 72%);
  filter: blur(10px);
  pointer-events: none;
  z-index: 0;
}

.stage .wrap {
  position: relative;
  z-index: 1;
}

.scene {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 0.9rem;
  color: var(--gold);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.scene i {
  width: 28px;
  height: 1px;
  background: var(--gold);
}

.tags {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.tag {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.22rem 0.7rem;
  font-size: 0.78rem;
  color: var(--mute);
}

.tag-on {
  border-color: rgba(232, 197, 106, 0.45);
  color: var(--gold);
}

.stage h1 {
  margin: 0 0 0.85rem;
  font-size: clamp(2.4rem, 7vw, 4.6rem);
  letter-spacing: -0.04em;
  line-height: 1.05;
}

.lead {
  margin: 0 auto 1.4rem;
  max-width: 42rem;
  color: var(--mute);
  font-size: 1.05rem;
}

.acts {
  display: flex;
  justify-content: center;
  gap: 0.7rem;
  flex-wrap: wrap;
  margin: 1.2rem 0 2rem;
}

.btn,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.7rem;
  padding: 0.5rem 1.15rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
}

.btn {
  background: var(--cta);
  color: var(--cta-ink);
}

.btn:hover {
  background: #ffe29a;
  color: var(--cta-ink);
}

.btn-ghost {
  border: 1px solid var(--line);
  color: var(--ink);
  background: transparent;
}

.btn-ghost:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.product {
  margin: 0 auto 1.6rem;
  max-width: 640px;
}

.product img {
  width: 100%;
  border-radius: 18px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 230, 180, 0.12);
}

.product figcaption {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 0.7rem;
  font-size: 0.78rem;
  color: var(--mute);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.params {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
  max-width: 760px;
  margin: 0 auto;
}

.param {
  border: 1px solid var(--line);
  background: rgba(16, 16, 20, 0.72);
  border-radius: 14px;
  padding: 0.95rem 0.85rem;
  text-align: left;
}

.param strong {
  display: block;
  font-size: 1.35rem;
  letter-spacing: -0.03em;
  color: var(--gold);
}

.param span {
  display: block;
  margin-top: 0.25rem;
  color: var(--mute);
  font-size: 0.86rem;
}

.param {
  animation: cue-in 0.8s ease both;
}

.param:nth-child(1) { animation-delay: 0.15s; }
.param:nth-child(2) { animation-delay: 0.35s; }
.param:nth-child(3) { animation-delay: 0.55s; }

@keyframes cue-in {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

section {
  padding: 3.4rem 0;
  border-top: 1px solid var(--line);
}

.head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 1.2rem;
  margin-bottom: 1.5rem;
}

.head h2,
.page-hero h1,
.block h2,
.card h3,
.plat h3 {
  letter-spacing: -0.03em;
}

.head p,
.page-hero .lead {
  color: var(--mute);
}

.kicker {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--gold);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.grid-4,
.grid-3,
.grid-2 {
  display: grid;
  gap: 0.9rem;
}

.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.entry,
.card,
.plat,
.note {
  display: block;
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 16px;
  padding: 1.1rem 1.05rem;
  color: inherit;
  text-decoration: none;
}

a.entry:hover,
a.card:hover {
  border-color: rgba(232, 197, 106, 0.4);
}

.entry h3,
.card h3,
.plat h3,
.note h3 {
  margin: 0.2rem 0 0.45rem;
  font-size: 1.08rem;
}

.entry p,
.card p,
.plat p,
.note p {
  margin: 0;
  color: var(--mute);
}

.idx {
  display: inline-block;
  color: var(--gold);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
}

.icon {
  width: 42px;
  height: 42px;
  margin-bottom: 0.7rem;
}

.icon svg {
  width: 42px;
  height: 42px;
}

.duo {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 1.6rem;
  align-items: center;
}

.duo.reverse {
  grid-template-columns: 0.95fr 1.05fr;
}

.checks {
  margin: 0;
  padding: 0;
  list-style: none;
}

.checks li {
  position: relative;
  padding: 0.55rem 0 0.55rem 1.2rem;
  border-bottom: 1px solid var(--line);
  color: var(--mute);
}

.checks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1rem;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--gold);
}

.checks h3 {
  margin: 0 0 0.2rem;
  color: var(--ink);
  font-size: 1rem;
}

.page-hero {
  text-align: left;
  padding: 2.6rem 0 1.4rem;
  border-top: 0;
}

.page-hero .lead {
  margin-left: 0;
}

.crumbs {
  margin: 0 0 0.7rem;
  color: var(--mute);
  font-size: 0.86rem;
}

.crumbs a {
  color: var(--mute);
}

.cues {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.7rem;
}

.cue {
  display: grid;
  gap: 0.15rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.85rem 0.8rem;
  color: inherit;
  text-decoration: none;
  background: #0c0c10;
}

.cue .n {
  color: var(--gold);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
}

.cue .t {
  font-weight: 700;
}

.cue .h {
  color: var(--mute);
  font-size: 0.82rem;
}

.cue.is-live {
  border-color: var(--gold);
  box-shadow: 0 0 0 1px rgba(232, 197, 106, 0.25);
}

.cite {
  margin: 1.2rem 0 0;
  color: var(--mute);
  font-size: 0.9rem;
}

.faq details {
  border-bottom: 1px solid var(--line);
}

.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 0.95rem 0;
  font-weight: 700;
}

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

.faq summary::after {
  content: "+";
  float: right;
  color: var(--gold);
  font-weight: 500;
}

.faq details[open] summary::after {
  content: "–";
}

.faq details p {
  margin: 0 0 1rem;
  color: var(--mute);
}

footer {
  border-top: 1px solid var(--line);
  padding: 2.4rem 0 1.6rem;
  background: #08080a;
}

.foot-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
  gap: 1.4rem;
}

footer h3 {
  margin: 0 0 0.55rem;
  font-size: 0.86rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
}

footer ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

footer li {
  margin: 0.3rem 0;
}

footer a {
  color: var(--ink);
  text-decoration: none;
}

footer a:hover {
  color: var(--gold);
}

.legal {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1.6rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  color: var(--mute);
  font-size: 0.82rem;
}

.js-ready [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
}

.js-ready [data-reveal].is-in {
  opacity: 1;
  transform: none;
  transition: opacity 0.7s ease, transform 0.7s ease;
}

@media (max-width: 960px) {
  .grid-4,
  .cues,
  .params,
  .foot-grid {
    grid-template-columns: 1fr 1fr;
  }

  .duo,
  .duo.reverse {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 720px) {
  .nav-toggle {
    display: inline-flex;
  }

  .menu {
    display: none;
    position: absolute;
    left: var(--pad);
    right: var(--pad);
    top: calc(4.25rem + 34px);
    background: #101014;
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 0.6rem;
  }

  .menu.is-open {
    display: block;
  }

  .menu ul {
    flex-direction: column;
    align-items: stretch;
  }

  .grid-4,
  .grid-3,
  .grid-2,
  .cues,
  .params,
  .foot-grid {
    grid-template-columns: 1fr;
  }

  .stage {
    text-align: left;
    padding-top: 2.2rem;
  }

  .lead,
  .acts,
  .params,
  .product {
    margin-left: 0;
    margin-right: 0;
  }

  .acts {
    justify-content: flex-start;
  }

  .tags {
    justify-content: flex-start;
  }

  .product figcaption {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .param,
  .js-ready [data-reveal],
  .js-ready [data-reveal].is-in {
    animation: none;
    opacity: 1;
    transform: none;
    transition: none;
  }
}