/* ===== Variables ===== */
:root {
  --white: #ffffff;
  --bg: #f8f9fb;
  --bg-card: #ffffff;
  --text: #0a0e17;
  --text-muted: #5a6478;
  --accent: #00c8a0;
  --accent-dim: rgba(0, 200, 160, 0.12);
  --accent-glow: rgba(0, 200, 160, 0.35);
  --border: rgba(10, 14, 23, 0.08);
  --border-strong: rgba(10, 14, 23, 0.15);
  --danger: #ff3b5c;
  --ally: #3b9eff;
  --font-display: 'Orbitron', sans-serif;
  --font-tech: 'Rajdhani', sans-serif;
  --font-body: 'Noto Sans SC', sans-serif;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.hidden { display: none !important; }

/* ===== Intro Animation ===== */
.intro {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: #f0f2f5;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s var(--ease-out), visibility 0.8s;
}

.intro.fade-out {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

#intro-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.intro-scanlines {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.03) 2px,
    rgba(0, 0, 0, 0.03) 4px
  );
  pointer-events: none;
  z-index: 2;
}

.intro-vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 40%, rgba(240, 242, 245, 0.9) 100%);
  pointer-events: none;
  z-index: 3;
}

.intro-content {
  position: relative;
  z-index: 4;
  text-align: center;
  width: min(90vw, 520px);
}

.intro-crosshair {
  position: relative;
  width: 60px;
  height: 60px;
  margin: 0 auto 2rem;
}

.intro-crosshair .ch-h,
.intro-crosshair .ch-v {
  position: absolute;
  background: var(--accent);
  opacity: 0.8;
}

.intro-crosshair .ch-h {
  width: 100%;
  height: 1px;
  top: 50%;
  left: 0;
  transform: scaleX(0);
  animation: crosshairExpand 0.6s 0.3s var(--ease-out) forwards;
}

.intro-crosshair .ch-v {
  width: 1px;
  height: 100%;
  left: 50%;
  top: 0;
  transform: scaleY(0);
  animation: crosshairExpandV 0.6s 0.3s var(--ease-out) forwards;
}

.intro-crosshair .ch-dot {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--accent);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  animation: dotPop 0.3s 0.8s var(--ease-out) forwards;
}

@keyframes crosshairExpand {
  to { transform: scaleX(1); }
}
@keyframes crosshairExpandV {
  to { transform: scaleY(1); }
}
@keyframes dotPop {
  to { transform: translate(-50%, -50%) scale(1); }
}

.intro-tag {
  font-family: var(--font-tech);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  color: var(--text-muted);
  display: block;
  margin-bottom: 0.5rem;
  opacity: 0;
  animation: fadeUp 0.5s 0.5s var(--ease-out) forwards;
}

.intro-title {
  margin-bottom: 2.5rem;
}

.intro-en {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 900;
  letter-spacing: 0.15em;
  color: var(--text);
  opacity: 0;
  animation: glitchIn 0.8s 0.6s var(--ease-out) forwards;
}

.intro-zh {
  display: block;
  font-size: clamp(1rem, 3vw, 1.25rem);
  font-weight: 300;
  letter-spacing: 0.5em;
  color: var(--text-muted);
  margin-top: 0.25rem;
  opacity: 0;
  animation: fadeUp 0.5s 1s var(--ease-out) forwards;
}

@keyframes glitchIn {
  0% { opacity: 0; transform: translateX(-8px); filter: blur(4px); }
  30% { opacity: 1; transform: translateX(4px); }
  60% { transform: translateX(-2px); }
  100% { opacity: 1; transform: translateX(0); filter: blur(0); }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.intro-progress-wrap {
  opacity: 0;
  animation: fadeUp 0.5s 1.2s var(--ease-out) forwards;
}

.intro-progress-bar {
  height: 2px;
  background: var(--border-strong);
  border-radius: 1px;
  overflow: hidden;
  margin-bottom: 0.75rem;
}

.intro-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), #00e8b8);
  box-shadow: 0 0 12px var(--accent-glow);
  transition: width 0.1s linear;
}

.intro-status {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-tech);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.intro-hud {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 2rem;
  font-family: var(--font-tech);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  opacity: 0;
  animation: fadeUp 0.5s 1.4s var(--ease-out) forwards;
}

/* ===== Background Effects ===== */
.grid-bg {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

.scan-overlay {
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 3px,
    rgba(0, 200, 160, 0.015) 3px,
    rgba(0, 200, 160, 0.015) 4px
  );
  pointer-events: none;
  z-index: 0;
  animation: scanMove 8s linear infinite;
}

@keyframes scanMove {
  0% { background-position: 0 0; }
  100% { background-position: 0 60px; }
}

.main { position: relative; z-index: 1; }

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 2.5rem;
  background: rgba(248, 249, 251, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  opacity: 0;
  transform: translateY(-20px);
  animation: headerIn 0.6s 0.2s var(--ease-out) forwards;
}

@keyframes headerIn {
  to { opacity: 1; transform: translateY(0); }
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--text);
}

.logo-icon {
  color: var(--accent);
  font-size: 1.2rem;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-text strong {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
}

.logo-text em {
  font-style: normal;
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.2em;
}

.nav {
  display: flex;
  gap: 2rem;
}

.nav a {
  font-family: var(--font-tech);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.nav a:hover { color: var(--accent); }

/* ===== Beijing Time Clock ===== */
.btime {
  position: relative;
  font-family: var(--font-tech);
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(10px);
  overflow: hidden;
}

.btime__corner {
  position: absolute;
  width: 8px;
  height: 8px;
  border-color: var(--accent);
  border-style: solid;
  z-index: 2;
}

.btime__corner--tl { top: 4px; left: 4px; border-width: 1px 0 0 1px; }
.btime__corner--tr { top: 4px; right: 4px; border-width: 1px 1px 0 0; }
.btime__corner--bl { bottom: 4px; left: 4px; border-width: 0 0 1px 1px; }
.btime__corner--br { bottom: 4px; right: 4px; border-width: 0 1px 1px 0; }

.btime__scan {
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.6;
  animation: btimeScan 3s linear infinite;
  pointer-events: none;
  z-index: 1;
}

@keyframes btimeScan {
  0% { top: 0; opacity: 0; }
  10% { opacity: 0.8; }
  90% { opacity: 0.8; }
  100% { top: 100%; opacity: 0; }
}

.btime__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  padding: 0.35rem 0.65rem 0;
}

.btime__label {
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.btime__sync {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  color: var(--accent);
}

.btime__dot {
  display: inline-block;
  width: 5px;
  height: 5px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--accent-glow);
  animation: pulse 1.2s ease infinite;
}

.btime__digits {
  display: flex;
  align-items: baseline;
  justify-content: center;
  padding: 0.15rem 0.65rem 0.35rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text);
  line-height: 1;
  text-shadow: 0 0 20px var(--accent-dim);
}

.btime__digits--compact {
  font-size: 1rem;
  padding: 0.1rem 0.5rem 0.3rem;
}

.btime__sep {
  color: var(--accent);
  margin: 0 1px;
  animation: btimeBlink 1s step-end infinite;
}

@keyframes btimeBlink {
  50% { opacity: 0.25; }
}

.btime__ms {
  font-size: 0.55em;
  font-weight: 400;
  color: var(--accent);
  letter-spacing: 0.05em;
  margin-left: 2px;
  min-width: 2.8em;
}

.btime__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.3rem 0.65rem;
  border-top: 1px solid var(--border);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.btime__tz {
  font-family: var(--font-display);
  font-size: 0.6rem;
  color: var(--accent);
  letter-spacing: 0.15em;
}

.btime__footer {
  display: flex;
  justify-content: space-between;
  padding: 0.25rem 0.65rem 0.4rem;
  font-size: 0.55rem;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  background: rgba(0, 200, 160, 0.04);
}

/* Intro clock — top right */
.btime--intro {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 5;
  min-width: 200px;
  opacity: 0;
  animation: fadeUp 0.5s 0.9s var(--ease-out) forwards;
}

/* Header clock */
.btime--header {
  flex-shrink: 0;
  opacity: 0;
  animation: headerIn 0.6s 0.35s var(--ease-out) forwards;
}

/* Floating HUD clock */
.btime--float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 90;
  min-width: 240px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  opacity: 0;
  transform: translateY(12px);
  animation: btimeFloatIn 0.7s 0.5s var(--ease-out) forwards;
}

@keyframes btimeFloatIn {
  to { opacity: 1; transform: translateY(0); }
}

.btime--float .btime__digits {
  font-size: 1.6rem;
}

.btime--float .btime__label {
  font-size: 0.55rem;
}

/* Hero HUD inline time */
.hero-hud--time .hero-hud-clock {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.hero-hud--time .hero-hud-clock span {
  display: inline;
}

/* Tick flash on second change */
.btime__digits.is-tick span[data-btime-s] {
  color: var(--accent);
  text-shadow: 0 0 12px var(--accent-glow);
  transition: color 0.15s, text-shadow 0.15s;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.4rem;
  font-family: var(--font-tech);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.25s var(--ease-out);
}

.btn-sm {
  padding: 0.5rem 1.2rem;
  background: var(--text);
  color: var(--white);
}

.btn-sm:hover {
  background: var(--accent);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}

.btn-radar {
  background: rgba(0, 200, 160, 0.08);
  color: var(--accent);
  border: 1px solid var(--accent);
  position: relative;
  overflow: hidden;
}

.btn-radar::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 40%, rgba(0, 200, 160, 0.15) 50%, transparent 60%);
  transform: translateX(-100%);
  transition: transform 0.5s var(--ease-out);
}

.btn-radar:hover::before {
  transform: translateX(100%);
}

.btn-radar:hover {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
  box-shadow: 0 6px 24px var(--accent-glow);
  transform: translateY(-2px);
}

.btn-radar-icon {
  flex-shrink: 0;
  animation: radarSpin 4s linear infinite;
}

@keyframes radarSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.btn-radar:hover .btn-radar-icon {
  animation-duration: 1.5s;
}

.btn-community {
  background: rgba(42, 171, 238, 0.08);
  color: #1a8fc7;
  border: 1px solid #2aabee;
  position: relative;
  overflow: hidden;
}

.btn-community::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 40%, rgba(42, 171, 238, 0.18) 50%, transparent 60%);
  transform: translateX(-100%);
  transition: transform 0.5s var(--ease-out);
}

.btn-community:hover::before {
  transform: translateX(100%);
}

.btn-community:hover {
  background: #2aabee;
  color: var(--white);
  border-color: #2aabee;
  box-shadow: 0 6px 24px rgba(42, 171, 238, 0.35);
  transform: translateY(-2px);
}

.btn-tg-icon {
  flex-shrink: 0;
}

.download-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

.btn-primary {
  background: var(--text);
  color: var(--white);
  border: 1px solid var(--text);
}

.btn-primary:hover {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 8px 30px var(--accent-glow);
  transform: translateY(-2px);
}

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

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

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: 1rem;
}

.btn-version {
  font-size: 0.7rem;
  opacity: 0.6;
  margin-left: 0.5rem;
  padding-left: 0.5rem;
  border-left: 1px solid rgba(255,255,255,0.3);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 3rem;
  padding: 8rem 2.5rem 4rem;
  max-width: 1280px;
  margin: 0 auto;
}

.hero-hud {
  position: absolute;
  font-family: var(--font-tech);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  opacity: 0;
  animation: hudFade 0.6s 0.8s var(--ease-out) forwards;
}

.hero-hud--tl { top: 7rem; left: 2.5rem; }
.hero-hud--tr { top: 7rem; right: 2.5rem; align-items: flex-end; }
.hero-hud--bl { bottom: 4rem; left: 2.5rem; }
.hero-hud--br { bottom: 4rem; right: 2.5rem; align-items: flex-end; }

@keyframes hudFade {
  to { opacity: 1; }
}

.hud-line {
  width: 40px;
  height: 1px;
  background: var(--accent);
}

.hud-val { color: var(--accent); font-weight: 700; font-size: 1.2rem; }

.hud-pulse {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 1.5s ease infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 var(--accent-glow); }
  50% { opacity: 0.5; box-shadow: 0 0 0 8px transparent; }
}

.hero-crosshair {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120px;
  height: 120px;
  pointer-events: none;
  opacity: 0.15;
}

.hero-crosshair span {
  position: absolute;
  background: var(--accent);
}

.hero-crosshair span:nth-child(1) { width: 20px; height: 1px; top: 50%; left: 0; }
.hero-crosshair span:nth-child(2) { width: 20px; height: 1px; top: 50%; right: 0; }
.hero-crosshair span:nth-child(3) { width: 1px; height: 20px; left: 50%; top: 0; }
.hero-crosshair span:nth-child(4) { width: 1px; height: 20px; left: 50%; bottom: 0; }

.hero-crosshair i {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--accent);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.hero-content {
  opacity: 0;
  animation: heroContentIn 0.8s 0.4s var(--ease-out) forwards;
}

@keyframes heroContentIn {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-eyebrow {
  font-family: var(--font-tech);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.blink {
  color: var(--accent);
  animation: blink 1.2s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

.hero-title { margin-bottom: 1.25rem; }

.hero-en {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  letter-spacing: 0.1em;
  line-height: 1;
  background: linear-gradient(135deg, var(--text) 0%, #2a3548 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-zh {
  display: block;
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  font-weight: 300;
  letter-spacing: 0.4em;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.hero-desc {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-muted);
  max-width: 480px;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.25rem 0;
  border-top: 1px solid var(--border);
}

.stat-val {
  display: block;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.stat-divider {
  width: 1px;
  height: 32px;
  background: var(--border-strong);
}

/* ===== Hero Visual ===== */
.hero-visual {
  position: relative;
  height: 420px;
  opacity: 0;
  animation: heroVisualIn 1s 0.6s var(--ease-out) forwards;
}

@keyframes heroVisualIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.radar-panel {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 280px;
  height: 280px;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(8px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.06);
}

.radar-ring {
  position: absolute;
  border: 1px solid var(--border);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.radar-ring--1 { width: 33%; height: 33%; }
.radar-ring--2 { width: 66%; height: 66%; }
.radar-ring--3 { width: 100%; height: 100%; border-color: var(--border-strong); }

.radar-sweep {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(from 0deg, transparent 0deg, var(--accent-dim) 60deg, transparent 61deg);
  animation: radarSweep 3s linear infinite;
}

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

.radar-blip {
  position: absolute;
  width: 6px;
  height: 6px;
  background: var(--danger);
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(255, 59, 92, 0.5);
  animation: blipPulse 2s ease infinite;
}

.radar-blip--1 { top: 25%; left: 60%; }
.radar-blip--2 { top: 55%; left: 30%; animation-delay: 0.5s; }
.radar-blip--3 { top: 70%; left: 72%; animation-delay: 1s; background: var(--ally); box-shadow: 0 0 8px rgba(59, 158, 255, 0.5); }

@keyframes blipPulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.7; }
}

.radar-center {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 12px var(--accent-glow);
}

.esp-preview {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.esp-box {
  position: absolute;
  padding: 0.35rem 0.6rem;
  font-family: var(--font-tech);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  border: 1px solid;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(4px);
}

.esp-box--enemy {
  top: 15%;
  right: 5%;
  border-color: var(--danger);
  color: var(--danger);
  animation: espFloat 3s ease-in-out infinite;
}

.esp-box--ally {
  bottom: 20%;
  left: 0;
  border-color: var(--ally);
  color: var(--ally);
  animation: espFloat 3s 1s ease-in-out infinite;
}

.esp-tag { display: block; font-weight: 700; }
.esp-hp { display: block; opacity: 0.8; margin-top: 2px; }

.esp-skeleton {
  position: absolute;
  top: 30%;
  right: 15%;
  width: 40px;
  height: 100px;
  border: 1px dashed var(--danger);
  opacity: 0.4;
  animation: espFloat 4s 0.5s ease-in-out infinite;
}

@keyframes espFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* ===== Features ===== */
.features {
  padding: 6rem 2.5rem;
  max-width: 1280px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-header--left { text-align: left; }

.section-tag {
  font-family: var(--font-tech);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  display: block;
  margin-bottom: 0.5rem;
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.section-header p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

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

.feature-card {
  position: relative;
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  transition: all 0.35s var(--ease-out);
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease-out);
}

.feature-card:hover {
  border-color: var(--accent);
  box-shadow: 0 12px 40px rgba(0, 200, 160, 0.08);
  transform: translateY(-4px);
}

.feature-card:hover::before { transform: scaleX(1); }

.feature-card--highlight {
  border-color: var(--accent);
  background: linear-gradient(180deg, var(--accent-dim) 0%, var(--bg-card) 40%);
}

.feature-icon {
  width: 48px;
  height: 48px;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.feature-id {
  font-family: var(--font-tech);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.06em;
  margin: 0.5rem 0 0.75rem;
}

.feature-card p {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.feature-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.feature-tags li {
  font-family: var(--font-tech);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.6rem;
  background: var(--accent-dim);
  color: var(--accent);
  border-radius: 2px;
}

/* ===== Specs ===== */
.specs {
  padding: 4rem 2.5rem 6rem;
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.specs-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.specs-grid {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.spec-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

.spec-key {
  font-family: var(--font-tech);
  letter-spacing: 0.1em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.spec-val {
  font-weight: 500;
  text-align: right;
}

.hud-panel {
  border: 1px solid var(--border-strong);
  background: var(--bg);
  border-radius: 4px;
  overflow: hidden;
}

.hud-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1.25rem;
  background: var(--text);
  color: var(--white);
  font-family: var(--font-tech);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
}

.hud-live {
  color: var(--accent);
  animation: blink 1.5s step-end infinite;
}

.hud-panel-body {
  padding: 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.hud-bar label {
  display: block;
  font-family: var(--font-tech);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.hud-bar-track {
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}

.hud-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #00e8b8);
  border-radius: 2px;
  animation: barPulse 2s ease infinite;
}

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

/* ===== Download ===== */
.download {
  padding: 6rem 2.5rem;
  max-width: 1280px;
  margin: 0 auto;
}

.download-card {
  position: relative;
  text-align: center;
  padding: 4rem 2rem;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 4px;
}

.download-corner {
  position: absolute;
  width: 20px;
  height: 20px;
  border-color: var(--accent);
  border-style: solid;
}

.download-corner--tl { top: 12px; left: 12px; border-width: 2px 0 0 2px; }
.download-corner--tr { top: 12px; right: 12px; border-width: 2px 2px 0 0; }
.download-corner--bl { bottom: 12px; left: 12px; border-width: 0 0 2px 2px; }
.download-corner--br { bottom: 12px; right: 12px; border-width: 0 2px 2px 0; }

.download-card h2 {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  letter-spacing: 0.06em;
  margin-bottom: 0.75rem;
}

.download-card p {
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.download-note {
  display: block;
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===== Footer ===== */
.footer {
  padding: 2rem 2.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
}

.footer-brand strong { color: var(--accent); }

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 7rem;
  }

  .hero-desc { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { height: 300px; }
  .hero-hud { display: none; }

  .feature-grid { grid-template-columns: 1fr; }
  .specs-inner { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .header { padding: 1rem 1.25rem; }
  .nav { display: none; }
  .btime--header { display: none; }
  .header-actions .btn-radar span,
  .header-actions .btn-community span { display: none; }
  .header-actions .btn-radar,
  .header-actions .btn-community { padding: 0.5rem 0.65rem; }
  .download-actions { flex-direction: column; align-items: stretch; }
  .download-actions .btn { width: 100%; justify-content: center; }
  .btime--float {
    bottom: 1rem;
    right: 1rem;
    left: 1rem;
    min-width: unset;
  }
  .btime--float .btime__digits { font-size: 1.35rem; }
  .btime--intro {
    top: 1rem;
    right: 1rem;
    min-width: 160px;
  }
  .btime--intro .btime__digits { font-size: 1.1rem; }
  .hero, .features, .specs, .download { padding-left: 1.25rem; padding-right: 1.25rem; }
  .footer { flex-direction: column; text-align: center; }
}