:root {
  --bg-deep: #050505;
  --bg-soft: #0b0b0b;
  --bg-panel: #111111;
  --bg-elevated: #1a1710;
  --gold: #b8962e;
  --gold-bright: #e8c547;
  --gold-dim: #8a7020;
  --gold-soft: #c9a84c;
  --gold-glow: rgba(232, 197, 71, 0.28);
  --text: #f5edd8;
  --text-muted: #a89a7a;
  --line: rgba(184, 150, 46, 0.24);
  --radius: 4px;
  --font-display: "Cormorant Garamond", "Songti SC", "Noto Serif SC", serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --max: 1200px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--text);
  background:
    radial-gradient(ellipse 80% 50% at 70% -10%, rgba(184, 150, 46, 0.18), transparent 55%),
    radial-gradient(ellipse 50% 40% at 0% 30%, rgba(232, 197, 71, 0.06), transparent 50%),
    linear-gradient(180deg, #0c0c0c 0%, var(--bg-deep) 40%, #000 100%);
  background-attachment: fixed;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--gold-bright);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover { color: #ffe9a0; }

.container {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--line);
  background: rgba(5, 5, 5, 0.92);
  backdrop-filter: blur(16px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 74px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
  font-family: var(--font-display);
  font-size: 1.45rem;
  letter-spacing: 0.06em;
  font-weight: 600;
}

.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: conic-gradient(from 210deg, var(--gold-dim), var(--gold-bright), var(--gold), #5c4a14, var(--gold-dim));
  box-shadow: 0 0 22px var(--gold-glow);
  position: relative;
}

.logo-mark::after {
  content: "M";
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background: var(--bg-deep);
  display: grid;
  place-items: center;
  color: var(--gold-bright);
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 1.2rem;
}

.nav a {
  color: var(--text-muted);
  font-size: 0.92rem;
  position: relative;
  padding: 0.25rem 0;
}

.nav a:hover,
.nav a.active { color: var(--gold-bright); }

.nav a.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-bright), transparent);
}

.header-cta { flex-shrink: 0; }

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--gold-bright);
  cursor: pointer;
  font-size: 1.25rem;
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}
.btn:hover { transform: translateY(-2px); }

.btn-gold {
  color: #1a1408;
  background: linear-gradient(135deg, #f5e6a8 0%, var(--gold-bright) 35%, var(--gold) 70%, #8a7020 100%);
  box-shadow: 0 8px 28px var(--gold-glow);
}
.btn-gold:hover {
  color: #1a1408;
  box-shadow: 0 14px 40px rgba(232, 197, 71, 0.5);
}

.btn-outline {
  color: var(--gold-bright);
  border-color: rgba(184, 150, 46, 0.55);
  background: rgba(184, 150, 46, 0.06);
}
.btn-outline:hover {
  color: var(--text);
  border-color: var(--gold-bright);
  background: rgba(184, 150, 46, 0.14);
}

.btn-lg {
  padding: 1.1rem 2.3rem;
  font-size: 1.08rem;
}

/* ========== Hero ========== */
.hero {
  position: relative;
  overflow: hidden;
  min-height: min(92vh, 780px);
  display: flex;
  align-items: center;
  padding: 4.5rem 0 3.5rem;
  border-bottom: 1px solid var(--line);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(105deg, rgba(5,5,5,0.88) 0%, rgba(5,5,5,0.55) 48%, rgba(5,5,5,0.2) 100%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60'%3E%3Cpath d='M0 30h60M30 0v60' fill='none' stroke='%23b8962e' stroke-opacity='0.05'/%3E%3C/svg%3E");
  background-size: cover, 60px 60px;
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 3rem;
  align-items: center;
}

.hero-copy { animation: fadeUp 0.9s ease both; }

.brand-hero {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(3rem, 6.5vw, 4.4rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.1;
  background: linear-gradient(120deg, #fff8e0 0%, var(--gold-bright) 40%, var(--gold) 70%, #7a6218 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  margin: 0 0 1.75rem;
  font-size: 1.12rem;
  color: var(--text-muted);
  max-width: 32rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-bottom: 1.5rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  color: var(--text-muted);
  font-size: 0.88rem;
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.hero-meta span::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold-bright);
  box-shadow: 0 0 8px var(--gold-glow);
}

/* Product window mockup */
.product-stage {
  position: relative;
  animation: fadeUp 1s ease 0.15s both;
}

.product-glow {
  position: absolute;
  inset: 10% -5% -5% 10%;
  background: radial-gradient(ellipse at center, rgba(232, 197, 71, 0.22), transparent 65%);
  filter: blur(20px);
  pointer-events: none;
  animation: pulseGlow 5s ease-in-out infinite;
}

.product-window {
  position: relative;
  border: 1px solid rgba(232, 197, 71, 0.35);
  border-radius: 10px;
  background: linear-gradient(160deg, #1a1710 0%, #0d0d0d 100%);
  box-shadow:
    0 0 0 1px rgba(184, 150, 46, 0.12),
    0 30px 80px rgba(0, 0, 0, 0.65),
    0 0 60px rgba(184, 150, 46, 0.12);
  overflow: hidden;
}

.window-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.45);
}

.window-dots {
  display: flex;
  gap: 6px;
}

.window-dots i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold-dim);
  display: block;
}

.window-dots i:nth-child(2) { background: var(--gold); }
.window-dots i:nth-child(3) { background: var(--gold-bright); }

.window-title {
  margin-left: 0.5rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.window-body {
  display: grid;
  grid-template-columns: 72px 1fr;
  min-height: 340px;
}

.side-rail {
  border-right: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.35);
  padding: 0.85rem 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  align-items: center;
}

.rail-item {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background:
    linear-gradient(145deg, rgba(232, 197, 71, 0.18), transparent 60%),
    var(--bg-panel);
  display: grid;
  place-items: center;
  color: var(--gold-bright);
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
}

.rail-item.active {
  border-color: var(--gold-bright);
  box-shadow: 0 0 16px var(--gold-glow);
}

.screen-area {
  position: relative;
  padding: 1rem;
  background:
    radial-gradient(ellipse 80% 60% at 60% 40%, rgba(184, 150, 46, 0.2), transparent 55%),
    linear-gradient(160deg, #14120c, #080808);
  overflow: hidden;
}

.screen-sky {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(40, 35, 20, 0.9) 0%, transparent 40%),
    radial-gradient(circle at 70% 30%, rgba(232, 197, 71, 0.25), transparent 35%),
    radial-gradient(circle at 30% 70%, rgba(100, 80, 30, 0.3), transparent 40%);
  pointer-events: none;
}

.screen-hud {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.hud-chip {
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.55);
  font-size: 0.75rem;
  color: var(--gold-bright);
  letter-spacing: 0.06em;
}

.screen-center {
  position: relative;
  z-index: 1;
  margin: 2.5rem auto 1.5rem;
  width: min(70%, 220px);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid rgba(232, 197, 71, 0.4);
  background:
    radial-gradient(circle at 40% 35%, rgba(245, 230, 168, 0.35), transparent 40%),
    radial-gradient(circle at 60% 60%, rgba(184, 150, 46, 0.4), transparent 50%),
    #12100a;
  box-shadow: inset 0 0 40px rgba(232, 197, 71, 0.15), 0 0 40px rgba(184, 150, 46, 0.2);
  animation: floatGlow 7s ease-in-out infinite;
  display: grid;
  place-items: center;
}

.screen-center span {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--gold-bright);
  letter-spacing: 0.1em;
  text-shadow: 0 0 24px var(--gold-glow);
}

.screen-bottom {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.5rem;
}

.mini-bar {
  height: 6px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--gold-dim), var(--gold-bright));
  opacity: 0.7;
}
.mini-bar:nth-child(2) { opacity: 0.45; width: 80%; }
.mini-bar:nth-child(3) { opacity: 0.3; width: 60%; }

.float-tag {
  position: absolute;
  z-index: 2;
  padding: 0.55rem 0.9rem;
  border: 1px solid rgba(232, 197, 71, 0.4);
  background: rgba(10, 10, 10, 0.88);
  backdrop-filter: blur(8px);
  font-size: 0.8rem;
  color: var(--gold-bright);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  animation: fadeUp 1s ease both;
}

.float-tag.t1 { top: 12%; left: -8%; animation-delay: 0.4s; }
.float-tag.t2 { bottom: 18%; right: -6%; animation-delay: 0.7s; }
.float-tag strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: #fff8e0;
}

@keyframes floatGlow {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-12px) scale(1.02); }
}

@keyframes pulseGlow {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes spinSlow {
  to { transform: rotate(360deg); }
}

/* ========== Stats ========== */
.stats-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(18, 16, 10, 0.95), rgba(8, 8, 8, 0.95));
}

.stat-item {
  padding: 2rem 1.25rem;
  text-align: center;
  border-right: 1px solid var(--line);
  position: relative;
}

.stat-item:last-child { border-right: none; }

.stat-item::after {
  content: "";
  position: absolute;
  left: 20%;
  right: 20%;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.stat-item:hover::after { opacity: 1; }

.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--gold-bright);
  letter-spacing: 0.04em;
  line-height: 1.2;
}

.stat-label {
  display: block;
  margin-top: 0.4rem;
  color: var(--text-muted);
  font-size: 0.88rem;
}

/* ========== Sections ========== */
.section {
  padding: 5rem 0;
  border-bottom: 1px solid var(--line);
}

.section-head {
  margin-bottom: 2.75rem;
  max-width: 40rem;
}

.section-label {
  display: inline-block;
  margin-bottom: 0.65rem;
  color: var(--gold);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.section-title {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 3.5vw, 2.5rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text);
}

.section-desc {
  margin: 0;
  color: var(--text-muted);
  font-size: 1.02rem;
}

/* Feature showcase — visual blocks */
.feature-showcase {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 1.25rem;
}

.feature-main,
.feature-side-item {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--bg-panel);
  min-height: 220px;
}

.feature-main {
  min-height: 460px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background:
    linear-gradient(180deg, transparent 30%, rgba(5,5,5,0.92) 100%),
    radial-gradient(ellipse at 70% 30%, rgba(232, 197, 71, 0.22), transparent 50%),
    linear-gradient(145deg, #1a1710, #0a0a0a);
}

.feature-main .visual-orb {
  position: absolute;
  top: 12%;
  right: 10%;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  border: 1px solid rgba(232, 197, 71, 0.35);
  background:
    radial-gradient(circle at 35% 35%, rgba(245, 230, 168, 0.4), transparent 45%),
    radial-gradient(circle at 65% 65%, rgba(184, 150, 46, 0.35), #12100a 70%);
  box-shadow: 0 0 50px rgba(184, 150, 46, 0.2);
  animation: floatGlow 8s ease-in-out infinite;
}

.feature-main .visual-orb::after {
  content: "";
  position: absolute;
  inset: 18%;
  border: 1px dashed rgba(232, 197, 71, 0.3);
  border-radius: 50%;
  animation: spinSlow 20s linear infinite;
}

.feature-main h3,
.feature-side-item h3 {
  position: relative;
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.55rem;
  letter-spacing: 0.04em;
  color: #fff8e0;
}

.feature-main p,
.feature-side-item p {
  position: relative;
  margin: 0;
  color: var(--text-muted);
  max-width: 28rem;
}

.feature-side {
  display: grid;
  grid-template-rows: 1fr 1fr;
  gap: 1.25rem;
}

.feature-side-item {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.feature-side-item:first-child {
  background:
    linear-gradient(135deg, rgba(184, 150, 46, 0.12), transparent 50%),
    linear-gradient(160deg, #161410, #0a0a0a);
}

.feature-side-item:last-child {
  background:
    linear-gradient(200deg, rgba(232, 197, 71, 0.1), transparent 45%),
    linear-gradient(160deg, #14120e, #080808);
}

.feat-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 1rem;
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  color: var(--gold-bright);
  background: rgba(184, 150, 46, 0.08);
}

.feat-icon svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.6; }

/* Six features row */
.feature-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 2rem;
  border-top: 1px solid var(--line);
}

.feature-cell {
  padding: 2rem 1.5rem 2rem 0;
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  padding-right: 1.75rem;
  padding-left: 1.5rem;
}

.feature-cell:nth-child(3n) { border-right: none; }
.feature-cell:nth-child(n+4) { border-bottom: none; }

.feature-cell .num {
  display: block;
  margin-bottom: 0.85rem;
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--gold);
  letter-spacing: 0.06em;
}

.feature-cell h3 {
  margin: 0 0 0.5rem;
  font-size: 1.12rem;
  color: var(--text);
}

.feature-cell p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.94rem;
}

/* Scene visual strip */
.scene-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.scene-panel {
  position: relative;
  min-height: 260px;
  padding: 1.5rem;
  border: 1px solid var(--line);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  transition: border-color 0.25s, transform 0.25s;
}

.scene-panel:hover {
  border-color: rgba(232, 197, 71, 0.55);
  transform: translateY(-4px);
}

.scene-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.9;
  pointer-events: none;
}

.scene-panel:nth-child(1)::before {
  background:
    linear-gradient(180deg, transparent 20%, rgba(5,5,5,0.95) 100%),
    radial-gradient(circle at 50% 30%, rgba(232, 197, 71, 0.35), transparent 50%),
    #12100a;
}
.scene-panel:nth-child(2)::before {
  background:
    linear-gradient(180deg, transparent 20%, rgba(5,5,5,0.95) 100%),
    linear-gradient(135deg, rgba(184, 150, 46, 0.25), transparent 50%),
    #100e08;
}
.scene-panel:nth-child(3)::before {
  background:
    linear-gradient(180deg, transparent 20%, rgba(5,5,5,0.95) 100%),
    repeating-linear-gradient(90deg, transparent, transparent 18px, rgba(184,150,46,0.08) 18px, rgba(184,150,46,0.08) 19px),
    #0e0c08;
}
.scene-panel:nth-child(4)::before {
  background:
    linear-gradient(180deg, transparent 20%, rgba(5,5,5,0.95) 100%),
    radial-gradient(ellipse at 40% 40%, rgba(245, 230, 168, 0.2), transparent 55%),
    #12100c;
}

.scene-panel h3,
.scene-panel p { position: relative; z-index: 1; }

.scene-panel h3 {
  margin: 0 0 0.45rem;
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--gold-bright);
  letter-spacing: 0.03em;
}

.scene-panel p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.scene-badge {
  position: relative;
  z-index: 1;
  margin-bottom: auto;
  align-self: flex-start;
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--line);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--gold);
  text-transform: uppercase;
}

/* Advantage split with visual */
.advantage-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: stretch;
}

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

.advantage-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--line);
}

.advantage-list .num {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--gold);
  line-height: 1.2;
}

.advantage-list h3 {
  margin: 0 0 0.3rem;
  font-size: 1.08rem;
}

.advantage-list p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.94rem;
}

.visual-panel {
  position: relative;
  border: 1px solid var(--line);
  padding: 2rem;
  background:
    linear-gradient(160deg, rgba(184, 150, 46, 0.1), transparent 50%),
    var(--bg-panel);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.visual-panel h3 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--gold-bright);
}

.visual-panel > p {
  margin: 0 0 1.5rem;
  color: var(--text-muted);
}

.keymap-demo {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.6rem;
  align-content: center;
}

.key {
  aspect-ratio: 1;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.4);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--gold-bright);
  transition: background 0.2s, border-color 0.2s;
}

.key:hover,
.key.hot {
  border-color: var(--gold-bright);
  background: rgba(184, 150, 46, 0.2);
  box-shadow: 0 0 16px var(--gold-glow);
}

.key.wide {
  grid-column: span 2;
  aspect-ratio: auto;
  min-height: 48px;
}

/* Download zone */
.download-zone {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2.5rem;
  align-items: center;
}

.package-visual {
  position: relative;
  padding: 2.5rem;
  border: 1px solid var(--line);
  background:
    linear-gradient(145deg, rgba(232, 197, 71, 0.08), transparent 40%),
    var(--bg-panel);
  min-height: 360px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.package-box {
  width: 140px;
  height: 160px;
  border: 2px solid var(--gold);
  background:
    linear-gradient(180deg, rgba(232, 197, 71, 0.25), transparent 50%),
    linear-gradient(160deg, #1a1710, #0a0a0a);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 40px rgba(184, 150, 46, 0.15);
  display: grid;
  place-items: center;
  position: relative;
  margin-bottom: 1.5rem;
  animation: floatGlow 6s ease-in-out infinite;
}

.package-box::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 40%;
  height: 8px;
  background: var(--gold-bright);
}

.package-box span {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--gold-bright);
}

.package-visual h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.4rem;
}

.package-visual p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.download-info h2 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 2.1rem;
  letter-spacing: 0.04em;
}

.download-info > p {
  margin: 0 0 1.5rem;
  color: var(--text-muted);
}

.download-specs {
  list-style: none;
  margin: 0 0 1.75rem;
  padding: 0;
}

.download-specs li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
}

.download-specs li span:first-child { color: var(--text-muted); }
.download-specs li span:last-child {
  color: var(--gold-bright);
  text-align: right;
}

.pc-only-note {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border-left: 2px solid var(--gold);
  background: rgba(184, 150, 46, 0.08);
  color: var(--text-muted);
  font-size: 0.9rem;
}

.check-list {
  margin: 1.5rem 0 0;
  padding: 1.25rem;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.3);
}

.check-list h3 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  color: var(--gold-bright);
}

.check-list ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.check-list li { margin-bottom: 0.35rem; }

/* Spec compare */
.spec-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.spec-box {
  padding: 2rem;
  border: 1px solid var(--line);
  background: var(--bg-panel);
  position: relative;
}

.spec-box.recommend {
  border-color: rgba(232, 197, 71, 0.45);
  background:
    linear-gradient(160deg, rgba(184, 150, 46, 0.12), transparent 50%),
    var(--bg-panel);
}

.spec-box .tag {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.2rem 0.55rem;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: #1a1408;
  background: var(--gold-bright);
}

.spec-box h3 {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--gold-bright);
}

.spec-box ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.spec-box li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--text-muted);
  font-size: 0.94rem;
}

.spec-box li strong {
  color: var(--text);
  font-weight: 500;
}

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  counter-reset: step;
}

.step {
  position: relative;
  padding: 1.75rem 1.25rem;
  border: 1px solid var(--line);
  background: var(--bg-panel);
  min-height: 200px;
}

.step::before {
  counter-increment: step;
  content: "0" counter(step);
  display: block;
  margin-bottom: 1.25rem;
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--gold);
  letter-spacing: 0.05em;
  line-height: 1;
}

.step h3 {
  margin: 0 0 0.5rem;
  font-size: 1.08rem;
}

.step p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* FAQ */
.faq-list { max-width: 820px; }

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

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 1.2rem 0;
  font-weight: 600;
  color: var(--text);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

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

.faq-item summary::after {
  content: "+";
  color: var(--gold);
  font-size: 1.25rem;
  line-height: 1;
}

.faq-item[open] summary::after { content: "−"; }

.faq-item p {
  margin: 0 0 1.2rem;
  color: var(--text-muted);
}

/* Page hero (subpages) */
.page-hero {
  padding: 3.5rem 0 2.5rem;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(ellipse 50% 80% at 90% 50%, rgba(184, 150, 46, 0.12), transparent 60%);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--gold-bright); }
.breadcrumb span { color: var(--gold-dim); }

.page-hero h1 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  letter-spacing: 0.05em;
}

.page-hero p {
  margin: 0;
  max-width: 40rem;
  color: var(--text-muted);
}

.prose { max-width: 760px; }

.prose h2 {
  margin: 2.5rem 0 1rem;
  font-family: var(--font-display);
  font-size: 1.45rem;
  letter-spacing: 0.03em;
  color: var(--gold-bright);
}

.prose h3 {
  margin: 1.75rem 0 0.65rem;
  font-size: 1.1rem;
}

.prose p,
.prose li { color: var(--text-muted); }

.prose ul,
.prose ol { padding-left: 1.2rem; }

.prose a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.table-wrap {
  overflow-x: auto;
  margin: 1.5rem 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

th, td {
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  text-align: left;
}

th {
  background: var(--bg-panel);
  color: var(--gold-bright);
  font-weight: 600;
}

td { color: var(--text-muted); }

.timeline {
  border-left: 1px solid var(--line);
  padding-left: 1.5rem;
}

.timeline-item {
  position: relative;
  margin-bottom: 2rem;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -1.75rem;
  top: 0.45rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold-bright);
  box-shadow: 0 0 0 4px rgba(184, 150, 46, 0.2);
}

.timeline-item time {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--gold);
  font-size: 0.88rem;
  letter-spacing: 0.04em;
}

.timeline-item h3 {
  margin: 0 0 0.4rem;
  font-size: 1.1rem;
}

.timeline-item p {
  margin: 0;
  color: var(--text-muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem 2rem;
}

.feature-item {
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
}

.feature-icon {
  width: 42px;
  height: 42px;
  margin-bottom: 1rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  color: var(--gold-bright);
  font-family: var(--font-display);
  font-size: 1.1rem;
  background: linear-gradient(160deg, rgba(184, 150, 46, 0.14), transparent);
}

.feature-item h3 {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
}

.feature-item p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Related + CTA + Footer */
.related {
  padding: 3.5rem 0;
  background: rgba(10, 10, 10, 0.9);
  border-bottom: 1px solid var(--line);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.related a {
  display: block;
  padding: 1.25rem 0;
  border-top: 1px solid var(--line);
  color: var(--text);
  font-weight: 600;
}

.related a span {
  display: block;
  margin-top: 0.4rem;
  color: var(--text-muted);
  font-weight: 400;
  font-size: 0.88rem;
}

.related a:hover { color: var(--gold-bright); }

.cta-band {
  padding: 4.5rem 0;
  text-align: center;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(ellipse 60% 80% at 50% 100%, rgba(184, 150, 46, 0.18), transparent 65%),
    radial-gradient(ellipse 40% 50% at 50% 0%, rgba(232, 197, 71, 0.08), transparent 60%);
}

.cta-band h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.2rem);
  letter-spacing: 0.05em;
}

.cta-band p {
  margin: 0 auto 1.75rem;
  max-width: 32rem;
  color: var(--text-muted);
}

.site-footer {
  padding: 3.5rem 0 2rem;
  background: #000;
  border-top: 1px solid var(--line);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.45rem;
  letter-spacing: 0.06em;
  margin: 0 0 0.75rem;
  color: var(--gold-bright);
}

.footer-brand-desc {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
  max-width: 18rem;
}

.footer-col h4 {
  margin: 0 0 1rem;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
}

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

.footer-col li { margin-bottom: 0.55rem; }

.footer-col a {
  color: var(--text-muted);
  font-size: 0.92rem;
}

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

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-seo-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

.footer-seo-links a {
  color: var(--text-muted);
  font-size: 0.82rem;
}

/* Responsive */
@media (max-width: 1020px) {
  .hero-grid,
  .feature-showcase,
  .advantage-split,
  .download-zone,
  .spec-compare,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .stats-strip,
  .scene-strip,
  .feature-row,
  .steps,
  .related-grid,
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .feature-cell:nth-child(3n) { border-right: 1px solid var(--line); }
  .feature-cell:nth-child(2n) { border-right: none; }
  .feature-cell:nth-child(n+4) { border-bottom: 1px solid var(--line); }

  .float-tag.t1 { left: 4%; }
  .float-tag.t2 { right: 4%; }

  .feature-main { min-height: 360px; }
}

@media (max-width: 720px) {
  .nav-toggle { display: grid; place-items: center; }

  .nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 74px;
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem 1.25rem 1.25rem;
    background: rgba(5, 5, 5, 0.98);
    border-bottom: 1px solid var(--line);
  }

  .nav.open { display: flex; }
  .header-cta { display: none; }

  .stats-strip,
  .scene-strip,
  .feature-row,
  .steps,
  .related-grid,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .stat-item {
    border-right: none;
    border-bottom: 1px solid var(--line);
  }

  .feature-cell {
    border-right: none !important;
    padding-left: 0;
  }

  .hero {
    min-height: auto;
    padding: 3rem 0;
  }

  .window-body { grid-template-columns: 1fr; }
  .side-rail {
    flex-direction: row;
    border-right: none;
    border-bottom: 1px solid var(--line);
    justify-content: center;
  }
}