/* SigmaCrypto — Premium UI System */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #04060c;
  --bg2: #080c16;
  --bg3: #0c1220;
  --surface: rgba(14, 20, 36, 0.72);
  --surface2: rgba(22, 30, 52, 0.85);
  --glass: rgba(255, 255, 255, 0.03);
  --border: rgba(255, 255, 255, 0.07);
  --border2: rgba(255, 255, 255, 0.14);
  --border3: rgba(255, 255, 255, 0.24);
  --accent: #b8924a;
  --accent2: #d4c4a0;
  --accent-dim: rgba(184, 146, 74, 0.14);
  --accent-glow: rgba(184, 146, 74, 0.32);
  --cyan: #5ec4ff;
  --cyan-dim: rgba(94, 196, 255, 0.1);
  --text: #f4f6fb;
  --text2: #9aa8be;
  --text3: #5a6d88;
  --gold: linear-gradient(135deg, #c9b078 0%, #a8863a 45%, #6b4f1a 100%);
  --gold-soft: linear-gradient(135deg, #b8924a 0%, #8b6914 100%);
  --font: 'DengXian', '等线', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-brand: "Lato", sans-serif;
  --font-d: var(--font);
  --font-s: var(--font);
  --font-m: var(--font);
  --section-y: clamp(100px, 12vw, 168px);
  --section-x: clamp(24px, 7vw, 120px);
  --container: 1440px;
  --radius: 16px;
  --radius-sm: 10px;
  --nav-h: 88px;
  --hero-text-bg: rgba(4, 6, 12, 0.7);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-s);
  font-size: 17px;
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--accent-dim); color: var(--accent2); }
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--surface2); border-radius: 4px; }

/* ── LOGO ── */
.nav-logo {
  display: flex; align-items: center; gap: 12px;
  text-decoration: none; color: var(--text);
  transition: opacity 0.25s;
}
.nav-logo:hover { opacity: 0.92; }

.logo-brand-svg {
  display: block;
  height: 34px;
  width: auto;
  margin-left: -4px;
  flex-shrink: 0;
  overflow: visible;
}
.logo-brand-svg--footer { height: 32px; }

.logo-icon {
  width: 52px; height: 52px; flex-shrink: 0; display: block;
  filter: drop-shadow(0 0 12px rgba(212, 176, 106, 0.25));
  transition: transform 0.5s var(--ease), filter 0.4s;
}
.logo-icon--sm { width: 48px; height: 48px; }
.nav-logo:hover .logo-icon {
  transform: scale(1.04) rotate(-2deg);
  filter: drop-shadow(0 0 20px rgba(212, 176, 106, 0.4));
}

.logo-wordmark { display: flex; flex-direction: column; line-height: 1.05; margin-left: -4px; }
.logo-brand {
  font-family: var(--font-brand);
  font-size: 1.45rem;
  font-weight: 700;
  font-style: normal;
  letter-spacing: 0.04em;
  line-height: 1;
  text-rendering: optimizeLegibility;
  background: linear-gradient(120deg, #dcc892 0%, #b8924a 42%, #9a7428 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.logo-tagline {
  font-size: 0.62rem; font-weight: 500; letter-spacing: 0.28em;
  text-transform: uppercase; color: var(--text3); margin-top: 3px;
}

/* ── NAV ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 var(--section-x); height: var(--nav-h);
  border-bottom: 1px solid transparent;
  transition: all 0.45s var(--ease);
}
nav.scrolled {
  background: rgba(4, 6, 12, 0.88);
  backdrop-filter: blur(28px) saturate(1.2);
  border-bottom-color: var(--border);
}

.nav-links { display: flex; gap: 3rem; list-style: none; align-items: center; }
.nav-links a {
  color: var(--text2); font-size: 0.92rem; font-weight: 500;
  text-decoration: none; letter-spacing: 0.04em;
  position: relative; padding: 6px 0;
  transition: color 0.25s;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 2px;
  background: var(--gold-soft); transform: scaleX(0); transform-origin: right;
  transition: transform 0.35s var(--ease); border-radius: 2px;
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { transform: scaleX(1); transform-origin: left; }

.nav-right { display: flex; align-items: center; gap: 1.5rem; }

.lang-switcher {
  display: flex; gap: 0;
  border: 1px solid var(--border2); border-radius: var(--radius-sm);
  overflow: hidden; background: var(--glass);
}
.lang-btn {
  background: none; border: none; color: var(--text3);
  font-family: var(--font); font-size: 0.78rem; font-weight: 500;
  padding: 8px 14px; transition: all 0.2s;
}
.lang-btn.active, .lang-btn:hover { background: var(--surface2); color: var(--accent2); }

.nav-cta {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--bg); background: var(--gold-soft);
  padding: 12px 28px; font-size: 0.88rem; font-weight: 700;
  letter-spacing: 0.06em; text-decoration: none; border-radius: var(--radius-sm);
  box-shadow: 0 4px 24px var(--accent-glow);
  transition: transform 0.25s var(--ease), box-shadow 0.3s;
}
.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 36px rgba(212, 176, 106, 0.45);
}

.hamburger {
  display: none; flex-direction: column; gap: 6px;
background: none; border: none; padding: 8px;
}
.hamburger span { display: block; width: 26px; height: 2px; background: var(--text2); transition: all 0.3s; border-radius: 2px; }
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.nav-mobile-actions {
  display: none;
  align-items: center;
  gap: 0.55rem;
}
.lang-dropdown { position: relative; }
.lang-globe {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  background: var(--glass);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--text2);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}
.lang-globe:hover { border-color: var(--accent); color: var(--accent2); }
.lang-globe svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.lang-dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 152px;
  padding: 0.35rem;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
  z-index: 101;
}
.lang-dropdown.open .lang-dropdown-menu { display: block; }
.lang-option {
  display: block;
  width: 100%;
  padding: 10px 12px;
  border: none;
  border-radius: 6px;
  background: none;
  color: var(--text2);
  font-family: var(--font);
  font-size: 0.88rem;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.lang-option.active,
.lang-option:hover {
  background: var(--accent-dim);
  color: var(--accent2);
}

.mobile-menu {
  display: none; position: fixed; top: var(--nav-h); left: 0; right: 0; bottom: 0;
  background: rgba(4, 6, 12, 0.97); backdrop-filter: blur(32px);
  padding: 3rem var(--section-x); z-index: 99; flex-direction: column;
  border-top: 1px solid var(--border);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  color: var(--text2); text-decoration: none; font-size: 2rem; font-weight: 600;
  padding: 1.25rem 0; border-bottom: 1px solid var(--border);
  transition: color 0.2s;
}
.mobile-menu a:hover { color: var(--accent2); }

/* ── HERO ── */
.hero {
  position: relative; min-height: 100svh;
  display: flex; align-items: center; overflow: hidden;
  padding: calc(var(--nav-h) + 48px) var(--section-x) 80px;
}

.hero-bg {
  position: absolute; inset: 0; overflow: hidden; background: #010206;
  isolation: isolate; contain: layout style paint;
  transform: translateZ(0);
}
.hero-aurora {
  position: absolute; inset: -30%;
  background:
    radial-gradient(ellipse 55% 45% at 25% 35%, rgba(94,196,255,0.05) 0%, transparent 65%),
    radial-gradient(ellipse 50% 40% at 75% 55%, rgba(212,176,106,0.04) 0%, transparent 60%),
    radial-gradient(ellipse 70% 55% at 50% 90%, rgba(60,100,180,0.03) 0%, transparent 55%);
  animation: auroraDrift 22s ease-in-out infinite alternate;
  will-change: transform;
  backface-visibility: hidden;
}
@keyframes auroraDrift {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  100% { transform: translate3d(-1.5%, -1%, 0) scale(1.04); }
}
.hero-pan {
  position: absolute; inset: 0; z-index: 1; overflow: hidden;
  pointer-events: none;
}
.hero-pan-inner {
  position: absolute; inset: 0; overflow: hidden;
}
.hero-pan-cam {
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%;
  contain: strict;
}
.hero-pan-cam canvas {
  display: block; width: 100%; height: 100%;
}
@media (prefers-reduced-motion: reduce) {
  .hero-aurora { animation: none; }
}
.hero-overlay {
  position: absolute; inset: 0; z-index: 2; pointer-events: none;
  background:
    linear-gradient(105deg, rgba(4, 6, 12, 0.62) 0%, rgba(4, 6, 12, 0.18) 38%, rgba(4, 6, 12, 0.06) 58%, rgba(4, 6, 12, 0.2) 100%),
    linear-gradient(180deg, rgba(4, 6, 12, 0.3) 0%, transparent 22%, transparent 78%, rgba(4, 6, 12, 0.45) 100%);
}
.hero-vignette {
  position: absolute; inset: 0; z-index: 2; pointer-events: none;
  background: radial-gradient(ellipse 100% 95% at 50% 50%, transparent 55%, rgba(1, 2, 6, 0.35) 100%);
}

.hero-content {
  position: relative; z-index: 4;
  max-width: var(--container); width: 100%; margin: 0 auto;
  display: grid; grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(3rem, 6vw, 7rem); align-items: center;
}

.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 1rem;
  font-size: 0.82rem; font-weight: 600; color: var(--accent);
  letter-spacing: 0.2em; text-transform: uppercase; margin-bottom: 2.5rem;
  opacity: 0; animation: fadeUp 1s 0.15s forwards;
}
.hero-eyebrow-line { width: 48px; height: 2px; background: var(--gold-soft); border-radius: 2px; }

h1.hero-title {
  font-size: clamp(3.2rem, 6.8vw, 5.75rem);
  font-weight: 500;
  line-height: 1.02;
  letter-spacing: 0;
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeUp 1s 0.3s forwards;
}
h1.hero-title .hero-brand {
  font-family: var(--font-brand);
  font-weight: 700;
  font-style: normal;
  letter-spacing: 0.03em;
  line-height: 0.95;
  text-rendering: optimizeLegibility;
  background: linear-gradient(118deg, #e8d4a8 0%, #c9a85a 38%, #a8863a 72%, #8b6914 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
h1.hero-title em {
  position: relative;
  z-index: 0;
  display: inline;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
  margin-top: 0.45em;
  padding: 0.1em 0.32em;
  font-size: clamp(1rem, 2.85vw, 1.85rem);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0.01em;
  white-space: nowrap;
  font-style: normal;
  background: var(--gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
h1.hero-title em::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--hero-text-bg);
  border-radius: 4px;
  z-index: -1;
}

.hero-desc {
  position: relative;
  z-index: 0;
  display: inline-block;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
  color: var(--text2);
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  line-height: 1.85;
  max-width: 580px;
  margin-bottom: 3rem;
  padding: 0.1em 0.32em;
  background: var(--hero-text-bg);
  border-radius: 4px;
  opacity: 0;
  animation: fadeUp 1s 0.45s forwards;
}

.hero-actions {
  display: flex; gap: 1.25rem; flex-wrap: wrap;
  opacity: 0; animation: fadeUp 1s 0.6s forwards;
}

.btn-fill {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--gold-soft); color: #0a0c12;
  padding: 18px 40px; border: none; border-radius: var(--radius-sm);
font-family: var(--font); font-size: 0.95rem; font-weight: 700;
  letter-spacing: 0.05em; text-decoration: none;
  box-shadow: 0 8px 32px var(--accent-glow);
  transition: transform 0.25s var(--ease), box-shadow 0.35s;
  position: relative; overflow: hidden;
}
.btn-fill::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(105deg, transparent 40%, rgba(255,255,255,0.25) 50%, transparent 60%);
  transform: translateX(-120%); transition: transform 0.55s;
}
.btn-fill:hover { transform: translateY(-3px); box-shadow: 0 16px 48px rgba(212, 176, 106, 0.45); }
.btn-fill:hover::after { transform: translateX(120%); }

.btn-ghost {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--glass); color: var(--text);
  padding: 17px 40px; border: 1px solid var(--border2);
  border-radius: var(--radius-sm);  font-family: var(--font); font-size: 0.95rem; font-weight: 600;
  letter-spacing: 0.04em; text-decoration: none;
  backdrop-filter: blur(12px);
  transition: all 0.3s var(--ease);
}
.btn-ghost:hover { border-color: var(--border3); background: rgba(255,255,255,0.06); }

.btn-arrow { font-size: 0.85rem; transition: transform 0.25s var(--ease); }
.btn-fill:hover .btn-arrow, .btn-ghost:hover .btn-arrow { transform: translateX(4px); }

/* ── HERO METRICS ── */
.hero-panel { opacity: 0; animation: fadeLeft 1s 0.5s forwards; }

.metrics-card {
  background: var(--surface);
  backdrop-filter: blur(24px) saturate(1.3);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  position: relative; overflow: hidden;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255,255,255,0.06);
}
.metrics-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--gold-soft);
}

.metrics-grid { display: grid; grid-template-columns: 1fr 1fr; }
.metric {
  padding: 2rem 1.75rem;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  position: relative; overflow: hidden;
  transition: background 0.35s;
}
.metric:nth-child(2n) { border-right: none; }
.metric:nth-child(3), .metric:nth-child(4) { border-bottom: none; }
.metric::after {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%), var(--accent-dim) 0%, transparent 65%);
  opacity: 0; transition: opacity 0.4s;
}
.metric:hover::after { opacity: 1; }

.metric-val {
  font-size: clamp(2.25rem, 3vw, 3rem); font-weight: 700; line-height: 1;
  background: var(--gold); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  margin-bottom: 0.5rem;
}
.metric-lbl {
  font-size: 0.78rem; color: var(--text3);
  letter-spacing: 0.08em; font-weight: 500;
}

/* ── SECTIONS ── */
section { padding: var(--section-y) var(--section-x); }
.container { max-width: var(--container); margin: 0 auto; }

.s-label {
  display: flex; align-items: center; gap: 1rem;
  font-size: 0.78rem; font-weight: 600; color: var(--accent);
  letter-spacing: 0.22em; text-transform: uppercase; margin-bottom: 1.75rem;
}
.s-label::before { content: ''; width: 32px; height: 2px; background: var(--gold-soft); border-radius: 2px; }

.s-title {
  font-size: clamp(2.25rem, 4.5vw, 3.75rem);
  font-weight: 700; line-height: 1.08; letter-spacing: -0.02em; margin-bottom: 1.5rem;
}
.s-title em {
  font-style: normal; font-weight: 700;
  background: var(--gold); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.s-sub {
  color: var(--text2); font-size: clamp(1rem, 1.2vw, 1.125rem);
  line-height: 1.9; max-width: 640px;
}

/* ── ABOUT ── */
.about-layout {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 8vw, 8rem); align-items: center; margin-top: 4rem;
}
.about-left .s-sub { margin-bottom: 1.5rem; }
.about-left .s-sub:last-of-type { margin-bottom: 3rem; }
.about-intro + .about-intro { margin-top: -0.25rem; }
.about-list { list-style: none; counter-reset: li; }
.about-list li {
  display: flex; align-items: flex-start; gap: 1.25rem;
  padding: 1.35rem 0; border-bottom: 1px solid var(--border);
  color: var(--text2); font-size: 1.02rem; line-height: 1.75;
  transition: color 0.25s, padding-left 0.3s var(--ease);
}
.about-list li:hover { color: var(--text); padding-left: 6px; }
.about-list li::before {
  content: counter(li, decimal-leading-zero); counter-increment: li;
  font-size: 0.75rem; font-weight: 700; color: var(--accent);
  margin-top: 0.25rem; flex-shrink: 0; letter-spacing: 0.05em;
}

.perf-panel {
  background: var(--surface);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  padding: clamp(1.35rem, 2.5vw, 1.85rem);
  color: var(--text);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}
.perf-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.35rem;
}
.perf-title {
  font-size: clamp(1.35rem, 2vw, 1.55rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
  margin: 0;
}
.perf-info {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.05rem;
  height: 1.05rem;
  margin-left: 0.35rem;
  border: 1.5px solid var(--border2);
  border-radius: 50%;
  font-size: 0.62rem;
  font-weight: 700;
  color: var(--text3);
  vertical-align: middle;
  transform: translateY(-2px);
}
.perf-sub {
  margin: 0.35rem 0 0;
  font-size: 0.88rem;
  color: var(--text3);
}
.perf-legend {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text2);
  white-space: nowrap;
}
.perf-legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px rgba(94, 196, 255, 0.45);
}
.perf-kpis {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem 1rem;
  margin-bottom: 1.25rem;
}
.perf-kpi-val {
  font-size: clamp(1.35rem, 2.2vw, 1.75rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  background: var(--gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.perf-kpi-lbl {
  margin-top: 0.35rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent2);
  line-height: 1.35;
}
.perf-kpi-note {
  margin-top: 0.15rem;
  font-size: 0.72rem;
  color: var(--text3);
}
.perf-chart-wrap {
  width: 100%;
  margin-bottom: 0.65rem;
  min-height: 220px;
}
.perf-chart-wrap svg {
  display: block;
  width: 100%;
  height: auto;
  min-height: 220px;
}
.perf-caption {
  margin: 0 0 1rem;
  text-align: center;
  font-size: 0.78rem;
  color: var(--text3);
}
.perf-summary {
  background: rgba(94, 196, 255, 0.06);
  border: 1px solid rgba(94, 196, 255, 0.12);
  border-radius: 12px;
  padding: 1rem 1.1rem;
  text-align: center;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--text2);
}
.perf-summary strong {
  display: block;
  margin-top: 0.45rem;
  font-size: 1.35rem;
  font-weight: 700;
  background: var(--gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

@media (max-width: 640px) {
  .perf-panel { padding: 1.05rem 0.95rem; }
  .perf-head { flex-direction: column; margin-bottom: 0.75rem; gap: 0.65rem; }
  .perf-sub { margin-top: 0.15rem; line-height: 1.35; }
  .perf-kpis { grid-template-columns: 1fr; gap: 0.55rem; margin-bottom: 0.75rem; }
  .perf-kpi-val { line-height: 1.05; }
  .perf-kpi-lbl { margin-top: 0.2rem; line-height: 1.25; }
  .perf-kpi-note { margin-top: 0.05rem; line-height: 1.25; }
  .perf-chart-wrap { margin-bottom: 0.45rem; }
  .perf-caption { margin-bottom: 0.65rem; line-height: 1.35; }
  .perf-summary { padding: 0.85rem 0.9rem; font-size: 0.86rem; line-height: 1.4; }
  .perf-summary strong { margin-top: 0.3rem; font-size: 1.2rem; }
}

/* ── SERVICES ── */
.services-wrap { background: var(--bg2); padding: var(--section-y) var(--section-x); }
.services-header {
  margin-bottom: 3rem;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
.adv-card {
  background: var(--surface);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(2rem, 3.5vw, 2.75rem) clamp(1.75rem, 3vw, 2.5rem);
  position: relative;
  overflow: hidden;
  transition: transform 0.4s var(--ease), border-color 0.35s, box-shadow 0.4s;
}
.adv-card:hover {
  transform: translateY(-4px);
  border-color: var(--border2);
  box-shadow: 0 24px 56px rgba(0, 0, 0, 0.35);
}
.adv-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle 240px at var(--mx, 50%) var(--my, 0%), var(--accent-dim) 0%, transparent 100%);
  opacity: 0;
  transition: opacity 0.5s;
}
.adv-card:hover::before { opacity: 1; }
.adv-title {
  font-size: clamp(1.1rem, 1.8vw, 1.25rem);
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 0.85rem;
  color: var(--accent2);
}
.adv-desc {
  color: var(--text2);
  font-size: 0.98rem;
  line-height: 1.85;
  margin: 0;
}

/* ── VENUES ── */
.venues-wrap { padding: calc(var(--section-y) * 0.65) var(--section-x); }
.venues-marquee {
  position: relative;
  overflow: hidden;
  margin-top: 3rem;
  padding: 1.5rem 0;
}
.venues-marquee::before,
.venues-marquee::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: clamp(72px, 14vw, 180px);
  z-index: 2;
  pointer-events: none;
}
.venues-marquee::before {
  left: 0;
  background: linear-gradient(90deg, var(--bg) 0%, rgba(4, 6, 12, 0.92) 35%, transparent 100%);
}
.venues-marquee::after {
  right: 0;
  background: linear-gradient(-90deg, var(--bg) 0%, rgba(4, 6, 12, 0.92) 35%, transparent 100%);
}
.venues-track {
  display: flex;
  align-items: center;
  width: max-content;
  animation: venuesScroll 36s linear infinite;
}
.venues-marquee:hover .venues-track { animation-play-state: paused; }
.venue {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 clamp(2.75rem, 5.5vw, 5rem);
}
.venue-logo {
  display: block;
  width: auto;
  height: clamp(28px, 3.4vw, 38px);
  max-width: clamp(108px, 14vw, 168px);
  object-fit: contain;
  opacity: 0.78;
  transition: opacity 0.3s ease;
}
.venue:hover .venue-logo { opacity: 1; }
@keyframes venuesScroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .venues-track { animation: none; flex-wrap: wrap; justify-content: center; width: auto; gap: 1.5rem 2.5rem; }
  .venues-marquee { overflow: visible; }
  .venues-marquee::before,
  .venues-marquee::after { display: none; }
}

/* ── CONTACT ── */
.contact-wrap { background: var(--bg2); padding: var(--section-y) var(--section-x); scroll-margin-top: var(--nav-h); }
.contact-layout {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 8vw, 8rem); margin-top: 4rem; align-items: start;
}
.contact-left p { color: var(--text2); font-size: 1.05rem; line-height: 1.9; margin-bottom: 3rem; }
.c-detail {
  display: flex; align-items: flex-start; gap: 1.25rem;
  padding: 1.35rem 0; border-bottom: 1px solid var(--border);
  transition: border-color 0.25s;
}
.c-detail:hover { border-bottom-color: var(--border2); }
.c-icon {
  width: 48px; height: 48px; border: 1px solid var(--border2);
  border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center;
  background: var(--glass); flex-shrink: 0;
}
.c-icon svg { width: 18px; height: 18px; stroke: var(--accent); fill: none; stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; }
.c-key { font-size: 0.72rem; color: var(--text3); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 0.35rem; font-weight: 600; }
.c-val { font-size: 1rem; color: var(--text2); }

.form-card {
  background: var(--surface); backdrop-filter: blur(24px);
  border: 1px solid var(--border2); border-radius: var(--radius);
  padding: clamp(2.5rem, 4vw, 3.5rem);
  box-shadow: 0 24px 80px rgba(0,0,0,0.4);
  position: relative; overflow: hidden;
}
.form-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: var(--gold-soft); }
.form-group { margin-bottom: 1.5rem; }
.f-label { display: flex; justify-content: space-between; margin-bottom: 0.75rem; }
.f-label span { font-size: 0.78rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text2); }
.f-opt { font-size: 0.72rem; color: var(--text3); font-weight: 400; text-transform: none; letter-spacing: 0; }
.f-input {
  width: 100%; background: rgba(4, 6, 12, 0.6); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text); font-family: var(--font);
  font-size: 1rem; padding: 16px 18px; outline: none;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.f-input:focus { border-color: rgba(212, 176, 106, 0.45); box-shadow: 0 0 0 4px var(--accent-dim); }
.f-input.is-invalid { border-color: rgba(248, 113, 113, 0.55); box-shadow: 0 0 0 4px rgba(248, 113, 113, 0.12); }
.f-input::placeholder { color: var(--text3); }
.f-error {
  min-height: 1.25rem;
  margin: 0.45rem 0 0;
  font-size: 0.78rem;
  line-height: 1.4;
  color: #f87171;
}
.f-error--form { text-align: center; margin-top: 0.85rem; min-height: 0; }
.f-submit {
  width: 100%; background: var(--gold-soft); color: #0a0c12;
  border: none; padding: 18px; border-radius: var(--radius-sm);
font-family: var(--font); font-size: 0.95rem; font-weight: 700;
  letter-spacing: 0.06em; margin-top: 0.5rem;
  box-shadow: 0 8px 32px var(--accent-glow);
  transition: transform 0.25s var(--ease), box-shadow 0.3s;
}
.f-submit:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(212, 176, 106, 0.45); }
.f-submit:disabled { opacity: 0.5; transform: none; box-shadow: none; }
.f-note { font-size: 0.78rem; color: var(--text3); text-align: center; margin-top: 1.25rem; line-height: 1.7; }

.form-success { display: none; text-align: center; padding: 3.5rem 2rem; }
.success-icon {
  width: 72px; height: 72px; border-radius: 50%; border: 2px solid var(--accent);
  display: flex; align-items: center; justify-content: center; margin: 0 auto 1.75rem;
}
.success-icon svg { width: 28px; height: 28px; stroke: var(--accent); fill: none; stroke-width: 1.5; }
.form-success h3 { font-size: 2rem; font-weight: 700; color: var(--accent2); margin-bottom: 1rem; }
.form-success p { color: var(--text2); font-size: 1rem; line-height: 1.8; }

/* ── FOOTER ── */
footer {
  padding: 2.25rem var(--section-x);
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  flex-wrap: wrap;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
  max-width: 520px;
}
.footer-logo:hover { opacity: 0.92; }
.footer-desc {
  margin: 0;
  padding-left: calc(48px + 8px);
  color: var(--text3);
  font-size: 0.88rem;
  line-height: 1.65;
}
.footer-copy {
  margin: 0;
  color: var(--text3);
  font-size: 0.82rem;
  white-space: nowrap;
}
.footer-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.4rem;
  flex-shrink: 0;
}
.footer-note {
  margin: 0;
  color: var(--text3);
  font-size: 0.78rem;
  line-height: 1.5;
  text-align: right;
  max-width: 320px;
}

/* ── ANIMATIONS ── */
@keyframes fadeUp { from { opacity: 0; transform: translateY(36px); } to { opacity: 1; transform: none; } }
@keyframes fadeLeft { from { opacity: 0; transform: translateX(36px); } to { opacity: 1; transform: none; } }
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ── RESPONSIVE ── */
@media (max-width: 1100px) {
  .hero-content { grid-template-columns: 1fr; gap: 3.5rem; }
  .hero-panel { max-width: 520px; }
  .advantages-grid { grid-template-columns: 1fr; }
}
@media (max-width: 1024px) {
  .about-layout, .contact-layout { grid-template-columns: 1fr; gap: 4rem; }
}
@media (max-width: 768px) {
  .nav-links, .nav-cta, .nav-right { display: none; }
  .nav-mobile-actions { display: flex; }
  .hamburger { display: flex; }
  #hero-canvas { opacity: 1; }
  .hero-panel { display: none; }
  nav .logo-tagline {
    display: block;
    font-size: 0.5rem;
    letter-spacing: 0.14em;
    margin-top: 2px;
    white-space: nowrap;
  }
  .nav-logo { gap: 8px; align-items: center; min-width: 0; }
  .logo-wordmark { min-width: 0; margin-left: -3px; }
  .logo-brand-svg { height: 30px; margin-left: -2px; }
  .logo-brand-svg--footer { height: 26px; }
  .logo-icon { width: 44px; height: 44px; flex-shrink: 0; }
  .s-sub { font-size: 0.94rem; line-height: 1.58; }
  .about-layout { margin-top: 2.25rem; gap: 2.5rem; }
  .about-left .s-sub { margin-bottom: 0.85rem; }
  .about-left .s-sub:last-of-type { margin-bottom: 1.35rem; }
  .about-intro + .about-intro { margin-top: -0.35rem; }
  .about-list li { padding: 0.85rem 0; font-size: 0.92rem; line-height: 1.5; gap: 0.85rem; }
  .about-list li::before { margin-top: 0.1rem; }
  .hero-desc { line-height: 1.58; margin-bottom: 2.25rem; }
  .contact-left p { line-height: 1.58; margin-bottom: 2rem; }
  .adv-desc { line-height: 1.55; }
  .footer-desc { line-height: 1.5; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 1.25rem; }
  .footer-meta { align-items: flex-start; }
  .footer-copy { white-space: normal; }
  .footer-note { text-align: left; max-width: none; }
  .footer-desc { padding-left: 0; }
}
@media (max-width: 480px) {
  nav .logo-tagline {
    font-size: 0.46rem;
    letter-spacing: 0.1em;
  }
  .logo-brand-svg { height: 28px; }
  .logo-icon { width: 40px; height: 40px; }
  .nav-logo { gap: 6px; }
}