/* ============================================================
   QuantumLogic FPGA — Main Stylesheet
   Tech-max dark theme: cyan / purple / green neon palette
   ============================================================ */

/* ---------- CSS Variables ---------- */
:root {
  --cyan:    #00f5ff;
  --purple:  #7b2fff;
  --green:   #00ff88;
  --orange:  #ff6b35;
  --bg-base: #040810;
  --bg-1:    #070d18;
  --bg-2:    #0a1120;
  --bg-card: rgba(10, 20, 40, 0.7);
  --border:  rgba(0, 245, 255, 0.15);
  --text:    #c8d8f0;
  --text-dim:#6a8aaa;
  --font-tech: 'Orbitron', 'Share Tech Mono', monospace;
  --font-body: 'Rajdhani', 'Share Tech Mono', sans-serif;
  --glow-cyan: 0 0 20px rgba(0,245,255,0.4), 0 0 60px rgba(0,245,255,0.15);
  --glow-purple: 0 0 20px rgba(123,47,255,0.4), 0 0 60px rgba(123,47,255,0.15);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--bg-base);
  color: var(--text);
  font-family: var(--font-body);
  overflow-x: hidden;
  line-height: 1.6;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { display: block; max-width: 100%; }

/* ---------- Background Canvas ---------- */
#bgCanvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ---------- Scanlines ---------- */
.scanlines {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.08) 2px,
    rgba(0,0,0,0.08) 4px
  );
  animation: scanMove 8s linear infinite;
}
@keyframes scanMove {
  0%   { background-position-y: 0; }
  100% { background-position-y: 100px; }
}

/* ensure sections above canvas */
nav, section, footer, .ticker-wrap { position: relative; z-index: 2; }

/* ============================================================
   NAVBAR
   ============================================================ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 2rem;
  transition: background 0.3s, backdrop-filter 0.3s;
}
#navbar.scrolled {
  background: rgba(4, 8, 16, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  height: 70px;
  gap: 2rem;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}
.logo-icon svg { display: block; }
.logo-text {
  font-family: var(--font-tech);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: #fff;
}
.logo-text .accent { color: var(--cyan); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  margin-left: auto;
}
.nav-links a {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.88rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 0.4rem 0.8rem;
  border-radius: 4px;
  transition: color 0.2s, background 0.2s;
}
.nav-links a:hover { color: var(--cyan); background: rgba(0,245,255,0.07); }
.nav-cta {
  font-family: var(--font-tech);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--bg-base);
  background: var(--cyan);
  padding: 0.55rem 1.2rem;
  border-radius: 4px;
  white-space: nowrap;
  transition: box-shadow 0.2s, transform 0.2s;
  flex-shrink: 0;
}
.nav-cta:hover {
  box-shadow: var(--glow-cyan);
  transform: translateY(-1px);
}
.nav-cta .arrow { margin-left: 4px; }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--cyan);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ============================================================
   HERO
   ============================================================ */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 100px 10vw 80px;
  gap: 4rem;
  overflow: hidden;
}
.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,245,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,245,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
  z-index: 0;
  pointer-events: none;
}
.hero-content {
  flex: 1;
  max-width: 640px;
  z-index: 1;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(0,245,255,0.08);
  border: 1px solid rgba(0,245,255,0.25);
  border-radius: 999px;
  padding: 0.3rem 1rem;
  font-family: var(--font-tech);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--cyan);
  margin-bottom: 1.5rem;
  text-transform: uppercase;
}
.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
  animation: pulse 1.5s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(1.4); }
}
.hero-title {
  font-family: var(--font-tech);
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  font-weight: 900;
  line-height: 1.1;
  color: #fff;
  margin-bottom: 1.4rem;
}
.gradient-text {
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
/* Glitch Effect */
.glitch {
  position: relative;
  display: inline-block;
}
.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  color: #fff;
}
.glitch::before {
  left: 2px;
  text-shadow: -2px 0 var(--cyan);
  clip-path: polygon(0 20%, 100% 20%, 100% 40%, 0 40%);
  animation: glitch1 3s infinite linear;
}
.glitch::after {
  left: -2px;
  text-shadow: 2px 0 var(--purple);
  clip-path: polygon(0 60%, 100% 60%, 100% 80%, 0 80%);
  animation: glitch2 3s infinite linear;
}
@keyframes glitch1 {
  0%,90%,100% { transform: none; opacity: 0; }
  92%          { transform: translate(-3px, 1px); opacity: 0.8; }
  94%          { transform: translate(3px,-1px); opacity: 0.8; }
  96%          { transform: translate(-2px,2px); opacity: 0.8; }
}
@keyframes glitch2 {
  0%,90%,100% { transform: none; opacity: 0; }
  91%          { transform: translate(3px,-2px); opacity: 0.8; }
  93%          { transform: translate(-3px, 2px); opacity: 0.8; }
  95%          { transform: translate(2px,-1px); opacity: 0.8; }
}
.hero-sub {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text-dim);
  margin-bottom: 2rem;
}
.hero-btns {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}
.btn-primary {
  font-family: var(--font-tech);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--bg-base);
  background: var(--cyan);
  padding: 0.75rem 1.8rem;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  transition: box-shadow 0.25s, transform 0.25s;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.btn-primary:hover {
  box-shadow: var(--glow-cyan);
  transform: translateY(-2px);
}
.btn-primary.large { padding: 0.9rem 2.2rem; font-size: 0.9rem; }
.btn-ghost {
  font-family: var(--font-tech);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--cyan);
  background: transparent;
  border: 1px solid rgba(0,245,255,0.4);
  padding: 0.75rem 1.8rem;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.25s, box-shadow 0.25s, transform 0.25s;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.btn-ghost:hover {
  background: rgba(0,245,255,0.07);
  box-shadow: 0 0 20px rgba(0,245,255,0.15);
  transform: translateY(-2px);
}
.btn-ghost.large { padding: 0.9rem 2.2rem; font-size: 0.9rem; }
.play-icon { font-size: 0.7rem; }
.hero-stats {
  display: flex;
  gap: 0;
  align-items: center;
  flex-wrap: wrap;
}
.stat {
  text-align: left;
  padding: 0 2rem;
}
.stat:first-child { padding-left: 0; }
.stat-num {
  font-family: var(--font-tech);
  font-size: 2rem;
  font-weight: 900;
  color: var(--cyan);
  line-height: 1;
}
.stat-unit {
  font-family: var(--font-tech);
  font-size: 0.9rem;
  color: var(--cyan);
  opacity: 0.8;
}
.stat-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 0.05em;
  margin-top: 0.2rem;
  text-transform: uppercase;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

/* ---------- Hero Visual ---------- */
.hero-visual {
  flex: 0 0 auto;
  width: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}
.chip-wrapper {
  position: relative;
  width: 360px;
  height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.chip-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid;
  animation: spin linear infinite;
}
.ring1 {
  width: 340px; height: 340px;
  border-color: rgba(0,245,255,0.15);
  animation-duration: 20s;
}
.ring2 {
  width: 280px; height: 280px;
  border-color: rgba(123,47,255,0.2);
  border-style: dashed;
  animation-duration: 14s;
  animation-direction: reverse;
}
.ring3 {
  width: 220px; height: 220px;
  border-color: rgba(0,245,255,0.1);
  animation-duration: 30s;
}
@keyframes spin { to { transform: rotate(360deg); } }
.chip-body {
  position: relative;
  width: 180px;
  height: 180px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.chip-svg {
  width: 180px;
  height: 180px;
  filter: drop-shadow(0 0 12px rgba(0,245,255,0.4));
  animation: chipPulse 3s ease-in-out infinite;
}
@keyframes chipPulse {
  0%, 100% { filter: drop-shadow(0 0 12px rgba(0,245,255,0.4)); }
  50%       { filter: drop-shadow(0 0 24px rgba(0,245,255,0.7)) drop-shadow(0 0 48px rgba(123,47,255,0.3)); }
}
.chip-label {
  font-family: var(--font-tech);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--cyan);
  margin-top: 0.4rem;
  text-transform: uppercase;
}
.data-stream {
  position: absolute;
  width: 2px;
  background: linear-gradient(to bottom, transparent, var(--cyan), transparent);
  animation: dataFlow 2s linear infinite;
  opacity: 0.7;
}
.stream1 { height: 80px; top: 10px; left: 50%; animation-delay: 0s; }
.stream2 { height: 60px; bottom: 20px; right: 30%; animation-delay: 0.7s; background: linear-gradient(to bottom, transparent, var(--purple), transparent); }
.stream3 { height: 70px; top: 30%; left: 10px; width: 80px; height: 2px; background: linear-gradient(to right, transparent, var(--cyan), transparent); animation-name: dataFlowH; animation-delay: 0.3s; }
.stream4 { height: 50px; bottom: 30%; right: 5px; width: 60px; height: 2px; background: linear-gradient(to right, transparent, var(--purple), transparent); animation-name: dataFlowH; animation-delay: 1s; }
@keyframes dataFlow {
  0%   { transform: translateY(-100%); opacity: 0; }
  50%  { opacity: 0.8; }
  100% { transform: translateY(100%); opacity: 0; }
}
@keyframes dataFlowH {
  0%   { transform: translateX(-100%); opacity: 0; }
  50%  { opacity: 0.8; }
  100% { transform: translateX(200%); opacity: 0; }
}

/* ---------- Scroll hint ---------- */
.hero-scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
  z-index: 2;
}
.scroll-arrow {
  width: 18px;
  height: 18px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  animation: arrowBounce 1.5s ease-in-out infinite;
}
@keyframes arrowBounce {
  0%, 100% { transform: rotate(45deg) translateY(0); }
  50%       { transform: rotate(45deg) translateY(4px); }
}

/* ============================================================
   TICKER
   ============================================================ */
.ticker-wrap {
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: rgba(0, 245, 255, 0.03);
  padding: 0.75rem 0;
  z-index: 2;
}
.ticker {
  display: inline-flex;
  gap: 2rem;
  white-space: nowrap;
  animation: tickerScroll 30s linear infinite;
  font-family: var(--font-tech);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  text-transform: uppercase;
}
.ticker .sep { color: var(--cyan); opacity: 0.5; }
@keyframes tickerScroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ============================================================
   SECTION COMMONS
   ============================================================ */
section {
  padding: 100px 10vw;
  max-width: 1600px;
  margin: 0 auto;
}
.section-header {
  text-align: center;
  margin-bottom: 4rem;
}
.section-tag {
  font-family: var(--font-tech);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: 0.8rem;
  opacity: 0.8;
}
.section-title {
  font-family: var(--font-tech);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 900;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 1rem;
}
.section-desc {
  font-size: 1rem;
  color: var(--text-dim);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ============================================================
   PRODUCTS
   ============================================================ */
#products { background: var(--bg-1); }
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}
.product-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s;
  backdrop-filter: blur(8px);
}
.product-card:hover {
  border-color: rgba(0,245,255,0.4);
  transform: translateY(-6px);
}
.product-card.featured {
  border-color: rgba(123,47,255,0.5);
  background: rgba(20, 10, 50, 0.7);
}
.product-card.featured:hover {
  border-color: rgba(123,47,255,0.8);
}
.card-glow {
  position: absolute;
  top: -40px; left: 50%;
  transform: translateX(-50%);
  width: 200px; height: 100px;
  background: radial-gradient(ellipse, rgba(0,245,255,0.1) 0%, transparent 70%);
  pointer-events: none;
}
.product-card.featured .card-glow {
  background: radial-gradient(ellipse, rgba(123,47,255,0.15) 0%, transparent 70%);
}
[data-tier="edge"] .card-glow {
  background: radial-gradient(ellipse, rgba(0,255,136,0.1) 0%, transparent 70%);
}
.featured-tag {
  position: absolute;
  top: 16px; right: -28px;
  background: var(--purple);
  color: #fff;
  font-family: var(--font-tech);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  padding: 4px 36px;
  transform: rotate(45deg);
  text-transform: uppercase;
}
.card-top { display: flex; flex-direction: column; align-items: flex-start; gap: 0.5rem; }
.card-badge {
  font-family: var(--font-tech);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--cyan);
  background: rgba(0,245,255,0.1);
  border: 1px solid rgba(0,245,255,0.3);
  padding: 2px 10px;
  border-radius: 999px;
  text-transform: uppercase;
}
.product-card.featured .card-badge {
  color: var(--purple);
  background: rgba(123,47,255,0.12);
  border-color: rgba(123,47,255,0.4);
}
[data-tier="edge"] .card-badge {
  color: var(--green);
  background: rgba(0,255,136,0.1);
  border-color: rgba(0,255,136,0.3);
}
.product-icon svg { width: 56px; height: 56px; }
.product-name {
  font-family: var(--font-tech);
  font-size: 1.3rem;
  font-weight: 700;
  color: #fff;
}
.product-tagline {
  font-size: 0.82rem;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}
.product-specs {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}
.product-specs li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.spec-key { color: var(--text-dim); }
.spec-val {
  font-family: var(--font-tech);
  font-size: 0.8rem;
  color: var(--cyan);
  font-weight: 600;
}
.product-card.featured .spec-val { color: var(--purple); }
[data-tier="edge"] .spec-val { color: var(--green); }
.product-btn {
  display: block;
  text-align: center;
  font-family: var(--font-tech);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--cyan);
  border: 1px solid rgba(0,245,255,0.4);
  border-radius: 6px;
  padding: 0.65rem;
  text-transform: uppercase;
  transition: background 0.2s, box-shadow 0.2s, transform 0.2s;
}
.product-btn:hover {
  background: rgba(0,245,255,0.1);
  box-shadow: 0 0 16px rgba(0,245,255,0.2);
  transform: translateY(-1px);
}
.featured-btn {
  color: var(--purple);
  border-color: rgba(123,47,255,0.5);
}
.featured-btn:hover {
  background: rgba(123,47,255,0.12);
  box-shadow: 0 0 16px rgba(123,47,255,0.25);
}
.green-btn {
  color: var(--green);
  border-color: rgba(0,255,136,0.4);
}
.green-btn:hover {
  background: rgba(0,255,136,0.08);
  box-shadow: 0 0 16px rgba(0,255,136,0.2);
}

/* ============================================================
   TECH
   ============================================================ */
#tech { background: var(--bg-base); }
.tech-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 5rem;
}
.tech-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.8rem;
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s;
  backdrop-filter: blur(8px);
}
.tech-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}
.tech-card:hover::before { opacity: 1; }
.tech-card:hover {
  border-color: rgba(0,245,255,0.3);
  transform: translateY(-4px);
}
.tech-icon-wrap {
  position: relative;
  width: 60px;
  height: 60px;
  margin-bottom: 1.2rem;
}
.tech-hex svg { width: 60px; height: 60px; }
.tech-num {
  position: absolute;
  bottom: -4px; right: -4px;
  font-family: var(--font-tech);
  font-size: 0.6rem;
  color: var(--cyan);
  background: var(--bg-base);
  padding: 1px 4px;
  border: 1px solid rgba(0,245,255,0.3);
  border-radius: 3px;
}
.tech-num.purple { color: var(--purple); border-color: rgba(123,47,255,0.3); }
.tech-num.green  { color: var(--green); border-color: rgba(0,255,136,0.3); }
.tech-num.orange { color: var(--orange); border-color: rgba(255,107,53,0.3); }
.tech-title {
  font-family: var(--font-tech);
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.7rem;
  line-height: 1.3;
}
.tech-desc {
  font-size: 0.85rem;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 1rem;
}
.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.tech-tags span {
  font-family: var(--font-tech);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
  background: rgba(0,245,255,0.08);
  border: 1px solid rgba(0,245,255,0.2);
  padding: 2px 8px;
  border-radius: 3px;
}
.tech-tags.purple span { color: var(--purple); background: rgba(123,47,255,0.08); border-color: rgba(123,47,255,0.2); }
.tech-tags.green span  { color: var(--green); background: rgba(0,255,136,0.08); border-color: rgba(0,255,136,0.2); }
.tech-tags.orange span { color: var(--orange); background: rgba(255,107,53,0.08); border-color: rgba(255,107,53,0.2); }

/* ---------- Architecture Diagram ---------- */
.arch-visual {
  max-width: 900px;
  margin: 0 auto;
}
.arch-diagram {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  backdrop-filter: blur(8px);
}
.arch-title {
  font-family: var(--font-tech);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  text-align: center;
}
.arch-blocks {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.arch-block {
  border-radius: 8px;
  padding: 0.9rem 0.7rem;
  text-align: center;
  border: 1px solid;
  transition: transform 0.2s;
}
.arch-block:hover { transform: scale(1.04); }
.arch-block span {
  display: block;
  font-family: var(--font-tech);
  font-size: 0.78rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
}
.arch-block small {
  font-family: var(--font-tech);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  opacity: 0.7;
}
.arch-block.cyan  { background: rgba(0,245,255,0.06); border-color: rgba(0,245,255,0.25); color: var(--cyan); }
.arch-block.purple{ background: rgba(123,47,255,0.08); border-color: rgba(123,47,255,0.3); color: var(--purple); }
.arch-block.green { background: rgba(0,255,136,0.06); border-color: rgba(0,255,136,0.25); color: var(--green); }
.arch-block.orange{ background: rgba(255,107,53,0.06); border-color: rgba(255,107,53,0.25); color: var(--orange); }
.arch-bus { margin-top: 0.5rem; }
.bus-line {
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--purple), var(--cyan), transparent);
  border-radius: 2px;
  animation: busFlow 2s linear infinite;
}
@keyframes busFlow {
  0%   { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.bus-label {
  text-align: center;
  font-family: var(--font-tech);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--text-dim);
  margin-top: 0.5rem;
  text-transform: uppercase;
}

/* ============================================================
   APPLICATIONS
   ============================================================ */
#applications { background: var(--bg-1); }
.app-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}
.app-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  gap: 0;
  flex-direction: row;
  transition: border-color 0.3s, transform 0.3s;
  backdrop-filter: blur(8px);
}
.app-card:hover {
  border-color: rgba(0,245,255,0.35);
  transform: translateY(-4px);
}
.app-img {
  flex: 0 0 130px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
.app-icon-bg {
  width: 90px; height: 90px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
/* Game icon backgrounds */
.pubg-bg  { background: radial-gradient(circle, rgba(245,166,35,0.18), rgba(245,166,35,0.03)); }
.delta-bg { background: radial-gradient(circle, rgba(0,245,255,0.18), rgba(0,245,255,0.03)); }
.cf-bg    { background: radial-gradient(circle, rgba(255,50,50,0.18), rgba(255,50,50,0.03)); }
.apex-bg  { background: radial-gradient(circle, rgba(218,13,38,0.20), rgba(218,13,38,0.04)); }

/* keep old names as aliases for any leftover refs */
.ai-bg       { background: radial-gradient(circle, rgba(0,245,255,0.15), rgba(0,245,255,0.03)); }
.telecom-bg  { background: radial-gradient(circle, rgba(123,47,255,0.18), rgba(123,47,255,0.03)); }
.vision-bg   { background: radial-gradient(circle, rgba(0,255,136,0.15), rgba(0,255,136,0.03)); }
.finance-bg  { background: radial-gradient(circle, rgba(255,107,53,0.15), rgba(255,107,53,0.03)); }

.app-content { flex: 1; padding: 1.5rem 1.5rem 1.5rem 0; }
.app-tag {
  font-family: var(--font-tech);
  font-size: 0.62rem;
  letter-spacing: 0.15em;
  color: var(--cyan);
  background: rgba(0,245,255,0.08);
  border: 1px solid rgba(0,245,255,0.25);
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
}
/* Old tag colours kept for backward compat */
.app-tag.telecom { color: var(--purple); background: rgba(123,47,255,0.1); border-color: rgba(123,47,255,0.3); }
.app-tag.vision  { color: var(--green); background: rgba(0,255,136,0.08); border-color: rgba(0,255,136,0.25); }
.app-tag.finance { color: var(--orange); background: rgba(255,107,53,0.08); border-color: rgba(255,107,53,0.25); }
/* Game tag colours */
.app-tag.pubg-tag  { color: #f5a623; background: rgba(245,166,35,0.1); border-color: rgba(245,166,35,0.35); }
.app-tag.delta-tag { color: var(--cyan); background: rgba(0,245,255,0.08); border-color: rgba(0,245,255,0.3); }
.app-tag.cf-tag    { color: #ff3232; background: rgba(255,50,50,0.1); border-color: rgba(255,50,50,0.35); }
.app-tag.apex-tag  { color: #da0d26; background: rgba(218,13,38,0.12); border-color: rgba(218,13,38,0.4); }
/* Game card hover border colours */
.app-card[data-app="pubg"]:hover  { border-color: rgba(245,166,35,0.45); }
.app-card[data-app="delta"]:hover { border-color: rgba(0,245,255,0.45); }
.app-card[data-app="cf"]:hover    { border-color: rgba(255,50,50,0.45); }
.app-card[data-app="apex"]:hover  { border-color: rgba(218,13,38,0.45); }
/* Game metrics accent colours */
.app-card[data-app="pubg"]  .app-metrics b { color: #f5a623; }
.app-card[data-app="delta"] .app-metrics b { color: var(--cyan); }
.app-card[data-app="cf"]    .app-metrics b { color: #ff3232; }
.app-card[data-app="apex"]  .app-metrics b { color: #da0d26; }
.app-content h3 {
  font-family: var(--font-tech);
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.5rem;
}
.app-content p {
  font-size: 0.84rem;
  color: var(--text-dim);
  line-height: 1.65;
  margin-bottom: 0.8rem;
}
.app-metrics {
  display: flex;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--text-dim);
}
.app-metrics b { color: var(--cyan); font-family: var(--font-tech); }

/* ============================================================
   CUSTOM FLOW — 四步定制流程
   ============================================================ */
#custom-flow { background: var(--bg-1); }

.flow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}
/* connecting line behind steps */
.flow-steps::before {
  content: '';
  position: absolute;
  top: 72px;
  left: 12%;
  right: 12%;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), var(--purple), var(--green), #f5a623);
  opacity: 0.3;
  pointer-events: none;
}

.flow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 1.4rem 2rem;
  position: relative;
}

.flow-num {
  font-family: var(--font-tech);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  color: var(--text-dim);
  margin-bottom: 1rem;
  background: var(--bg-base);
  padding: 0 0.4rem;
  position: relative;
  z-index: 1;
}

.flow-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.4rem;
  position: relative;
  z-index: 1;
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.25s;
  backdrop-filter: blur(8px);
}
.flow-step:hover .flow-icon {
  border-color: rgba(0,245,255,0.5);
  box-shadow: 0 0 20px rgba(0,245,255,0.15);
  transform: translateY(-4px);
}
.flow-step:nth-child(2):hover .flow-icon { border-color: rgba(123,47,255,0.5); box-shadow: 0 0 20px rgba(123,47,255,0.15); }
.flow-step:nth-child(3):hover .flow-icon { border-color: rgba(0,255,136,0.5); box-shadow: 0 0 20px rgba(0,255,136,0.15); }
.flow-step:nth-child(4):hover .flow-icon { border-color: rgba(245,166,35,0.5); box-shadow: 0 0 20px rgba(245,166,35,0.15); }

.flow-body h3 {
  font-family: var(--font-tech);
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.6rem;
}
.flow-body p {
  font-size: 0.84rem;
  color: var(--text-dim);
  line-height: 1.7;
}

.flow-arrow {
  position: absolute;
  top: 72px;
  right: -8px;
  font-size: 1.1rem;
  color: var(--cyan);
  opacity: 0.5;
  z-index: 2;
  transform: translateY(-50%);
  pointer-events: none;
}
.flow-arrow.last { display: none; }

/* step accent colour per position */
.flow-step:nth-child(1) .flow-num { color: var(--cyan); }
.flow-step:nth-child(2) .flow-num { color: var(--purple); }
.flow-step:nth-child(3) .flow-num { color: var(--green); }
.flow-step:nth-child(4) .flow-num { color: #f5a623; }
.flow-step:nth-child(1) .flow-body h3 { color: var(--cyan); }
.flow-step:nth-child(2) .flow-body h3 { color: var(--purple); }
.flow-step:nth-child(3) .flow-body h3 { color: var(--green); }
.flow-step:nth-child(4) .flow-body h3 { color: #f5a623; }

@media (max-width: 960px) {
  .flow-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
  .flow-steps::before { display: none; }
  .flow-arrow { display: none; }
}
@media (max-width: 560px) {
  .flow-steps { grid-template-columns: 1fr; }
}

/* ============================================================
   SPECS TABLE
   ============================================================ */
#specs { background: var(--bg-base); }
.specs-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
  backdrop-filter: blur(8px);
}
.specs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
.specs-table th, .specs-table td {
  padding: 0.9rem 1.5rem;
  text-align: left;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  white-space: nowrap;
}
.specs-table th {
  background: rgba(0,245,255,0.04);
  font-family: var(--font-tech);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
}
.th-chip {
  font-family: var(--font-tech);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 3px 12px;
  border-radius: 4px;
}
.th-chip.ultra  { color: var(--cyan); background: rgba(0,245,255,0.1); border: 1px solid rgba(0,245,255,0.3); }
.th-chip.pro    { color: var(--purple); background: rgba(123,47,255,0.12); border: 1px solid rgba(123,47,255,0.35); }
.th-chip.edge   { color: var(--green); background: rgba(0,255,136,0.08); border: 1px solid rgba(0,255,136,0.3); }
.specs-table td:first-child { color: var(--text-dim); font-weight: 600; }
.specs-table tr:hover td { background: rgba(0,245,255,0.03); }
.specs-table td.highlight {
  color: var(--cyan);
  font-family: var(--font-tech);
  font-weight: 700;
}

/* ============================================================
   PRICING CARDS — 游戏定制价格
   ============================================================ */
#specs { background: var(--bg-1); }

.price-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.4rem;
  max-width: 1200px;
  margin: 0 auto 2rem;
}

.price-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 2rem 1.6rem 1.8rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.5rem;
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
  backdrop-filter: blur(10px);
}
.price-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.price-card.featured-price {
  border-color: rgba(123,47,255,0.5);
  background: rgba(20,8,48,0.75);
}
.price-card.featured-price:hover {
  border-color: rgba(0,245,255,0.6);
  box-shadow: 0 0 40px rgba(123,47,255,0.2), 0 20px 60px rgba(0,0,0,0.5);
}
[data-game="pubg"]:hover  { border-color: rgba(245,166,35,0.5); }
[data-game="delta"]:hover { border-color: rgba(0,245,255,0.5); }
[data-game="cf"]:hover    { border-color: rgba(255,50,50,0.5); }

/* top glow blobs */
.price-card-glow {
  position: absolute;
  top: -30px; left: 50%;
  transform: translateX(-50%);
  width: 160px; height: 80px;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(245,166,35,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.delta-glow { background: radial-gradient(ellipse, rgba(0,245,255,0.15) 0%, transparent 70%); }
.cf-glow    { background: radial-gradient(ellipse, rgba(255,50,50,0.15) 0%, transparent 70%); }
.all-glow   { background: radial-gradient(ellipse, rgba(123,47,255,0.2) 0%, transparent 70%); }

/* hot badge */
.price-hot-tag {
  position: absolute;
  top: 14px; right: -28px;
  background: linear-gradient(90deg, var(--purple), var(--cyan));
  color: #fff;
  font-family: var(--font-tech);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  padding: 4px 40px;
  transform: rotate(45deg);
  white-space: nowrap;
  z-index: 2;
}

.price-game-icon {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.4rem;
  transition: transform 0.25s;
}
.price-card:hover .price-game-icon { transform: scale(1.08); }

.price-game-name {
  font-family: var(--font-tech);
  font-size: 1.2rem;
  font-weight: 900;
  color: #fff;
  letter-spacing: 0.05em;
  margin-top: 0.2rem;
}
.gradient-kill {
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.price-game-sub {
  font-family: var(--font-tech);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}

.price-amount {
  display: flex;
  align-items: flex-start;
  line-height: 1;
  margin: 0.4rem 0;
}
.price-currency {
  font-family: var(--font-tech);
  font-size: 1.4rem;
  font-weight: 700;
  color: #f5a623;
  margin-top: 0.3rem;
  margin-right: 0.1rem;
}
.delta-c { color: var(--cyan); }
.cf-c    { color: #ff3232; }
.all-c   { color: var(--purple); }

.price-num {
  font-family: var(--font-tech);
  font-size: 3.4rem;
  font-weight: 900;
  color: #fff;
  line-height: 1;
}

.price-period {
  font-family: var(--font-tech);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  padding: 3px 12px;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.price-features {
  list-style: none;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.4rem;
  text-align: left;
}
.price-features li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.83rem;
  color: var(--text-dim);
}
.pf-check        { color: #f5a623; font-size: 0.6rem; flex-shrink: 0; }
.delta-check     { color: var(--cyan); }
.cf-check        { color: #ff3232; }
.all-check       { color: var(--purple); }

/* buy buttons */
.price-btn {
  display: block;
  width: 100%;
  font-family: var(--font-tech);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-align: center;
  border-radius: 6px;
  padding: 0.7rem 1rem;
  border: none;
  cursor: pointer;
  transition: box-shadow 0.25s, transform 0.2s;
  margin-top: auto;
}
.pubg-btn  { background: #f5a623; color: #000; }
.pubg-btn:hover  { box-shadow: 0 0 20px rgba(245,166,35,0.5); transform: translateY(-2px); }
.delta-btn { background: var(--cyan); color: #000; }
.delta-btn:hover { box-shadow: var(--glow-cyan); transform: translateY(-2px); }
.cf-btn    { background: #ff3232; color: #fff; }
.cf-btn:hover    { box-shadow: 0 0 20px rgba(255,50,50,0.5); transform: translateY(-2px); }
.all-btn   { background: linear-gradient(90deg, var(--purple), var(--cyan)); color: #fff; }
.all-btn:hover   { box-shadow: 0 0 30px rgba(123,47,255,0.4); transform: translateY(-2px); }

/* bottom note bar */
.price-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  font-family: var(--font-tech);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  background: rgba(0,245,255,0.04);
  border: 1px solid rgba(0,245,255,0.12);
  border-radius: 8px;
  padding: 0.8rem 1.4rem;
  max-width: 900px;
  margin: 0 auto;
}
.price-note .sep { opacity: 0.3; }

@media (max-width: 1100px) {
  .price-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .price-grid { grid-template-columns: 1fr; }
  .price-num { font-size: 2.8rem; }
}

/* ============================================================
   TOOLS DOWNLOAD
   ============================================================ */
#tools {
  background: var(--bg-2);
  padding-top: 100px;
  padding-bottom: 100px;
}
.tools-grid {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
}
.tool-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.2rem 2.4rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  flex: 1 1 500px;
  max-width: 720px;
  backdrop-filter: blur(10px);
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
  overflow: hidden;
}
.tool-card:hover {
  border-color: rgba(0,245,255,0.45);
  transform: translateY(-6px);
  box-shadow: 0 0 36px rgba(0,245,255,0.12), 0 18px 48px rgba(0,0,0,0.35);
}
.tool-card-glow {
  position: absolute;
  top: -40px; left: 50%;
  transform: translateX(-50%);
  width: 200px; height: 80px;
  background: radial-gradient(ellipse, rgba(0,245,255,0.18) 0%, transparent 70%);
  pointer-events: none;
}
.tool-icon {
  flex-shrink: 0;
}
.tool-info {
  flex: 1;
}
.tool-name {
  font-family: var(--font-tech);
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.5rem;
  letter-spacing: 0.03em;
}
.tool-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 0.85rem;
}
.tool-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}
.tool-tag {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--cyan);
  border: 1px solid rgba(0,245,255,0.35);
  border-radius: 4px;
  padding: 0.18rem 0.55rem;
  letter-spacing: 0.04em;
}
.tool-dl-btn {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  font-family: var(--font-tech);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--bg-0);
  background: linear-gradient(135deg, var(--cyan) 0%, #00b8cc 100%);
  border: none;
  border-radius: 8px;
  padding: 0.75rem 1.5rem;
  cursor: pointer;
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: opacity 0.2s, transform 0.2s, box-shadow 0.2s;
  white-space: nowrap;
}
.tool-dl-btn:hover {
  opacity: 0.88;
  transform: translateY(-2px);
  box-shadow: var(--glow-cyan);
}
@media (max-width: 640px) {
  .tool-card {
    flex-direction: column;
    text-align: center;
    padding: 1.8rem 1.4rem;
    gap: 1.2rem;
  }
  .tool-tags { justify-content: center; }
}

/* ============================================================
   PARTNERS
   ============================================================ */
#partners {
  background: var(--bg-1);
  padding-top: 70px;
  padding-bottom: 70px;
}
.partners-row {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  max-width: 1000px;
  margin: 0 auto;
}
.partner-logo {
  font-family: var(--font-tech);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--text-dim);
  padding: 0.6rem 1.8rem;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 6px;
  background: rgba(255,255,255,0.02);
  transition: color 0.2s, border-color 0.2s, box-shadow 0.2s;
  text-transform: uppercase;
}
.partner-logo:hover {
  color: var(--cyan);
  border-color: rgba(0,245,255,0.3);
  box-shadow: 0 0 16px rgba(0,245,255,0.1);
}

/* ============================================================
   CTA BANNER
   ============================================================ */
#cta-banner {
  background: linear-gradient(135deg, rgba(0,245,255,0.06), rgba(123,47,255,0.1));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 10vw;
  max-width: 100%;
  position: relative;
  overflow: hidden;
}
.cta-inner { max-width: 1400px; margin: 0 auto; }
.cta-bg-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,245,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,245,255,0.03) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
}
.cta-content { position: relative; text-align: center; }
.cta-title {
  font-family: var(--font-tech);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 900;
  color: #fff;
  margin-bottom: 1rem;
}
.cta-desc {
  font-size: 1rem;
  color: var(--text-dim);
  margin-bottom: 2rem;
}
.cta-btns { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ============================================================
   CONTACT
   ============================================================ */
#contact { background: var(--bg-base); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 4rem;
  max-width: 1100px;
  margin: 0 auto;
}
.contact-info { display: flex; flex-direction: column; gap: 1.5rem; }
.contact-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.contact-icon { font-size: 1.3rem; flex-shrink: 0; }
.contact-label {
  font-family: var(--font-tech);
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: 0.3rem;
}
.contact-val {
  font-size: 0.9rem;
  color: var(--text);
  line-height: 1.5;
}
.contact-sub {
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-top: 0.25rem;
}
/* QQ contact */
.qq-item { align-items: center; }
.qq-icon { font-size: 0; flex-shrink: 0; }
.qq-val { font-size: 1.5rem !important; }
.qq-link {
  font-family: var(--font-tech);
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  color: #12b7f5;
  text-shadow: 0 0 14px rgba(18,183,245,0.5);
  transition: text-shadow 0.2s, color 0.2s;
}
.qq-link:hover {
  color: #fff;
  text-shadow: 0 0 24px rgba(18,183,245,0.9);
}

/* QR Code Panels */
.qr-panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.6rem;
  align-self: start;
}
.qr-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  backdrop-filter: blur(10px);
  transition: border-color 0.25s, transform 0.25s;
}
.qq-qr-card     { border-color: rgba(18,183,245,0.25); }
.wechat-qr-card { border-color: rgba(7,193,96,0.25); }
.qq-qr-card:hover     { border-color: rgba(18,183,245,0.55); transform: translateY(-4px); }
.wechat-qr-card:hover { border-color: rgba(7,193,96,0.55);  transform: translateY(-4px); }

.qr-card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
}
.qr-platform-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: rgba(18,183,245,0.1);
  border: 1px solid rgba(18,183,245,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.wechat-icon-bg {
  background: rgba(7,193,96,0.1);
  border-color: rgba(7,193,96,0.25);
}
.qr-platform-name {
  font-family: var(--font-tech);
  font-size: 0.9rem;
  font-weight: 700;
  color: #12b7f5;
  letter-spacing: 0.06em;
}
.wechat-name { color: #07c160; }
.qr-platform-id {
  font-size: 0.7rem;
  color: var(--text-dim);
  margin-top: 2px;
  font-family: var(--font-tech);
  letter-spacing: 0.04em;
}

.qr-img-wrap {
  width: 100%;
  border-radius: 10px;
  overflow: hidden;
  border: 2px solid rgba(18,183,245,0.2);
  background: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-bottom: 0.6rem;
}
.wechat-wrap { border-color: rgba(7,193,96,0.2); }
.qr-img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  display: block;
}
.qr-scan-hint {
  font-size: 0.68rem;
  color: #888;
  margin-top: 0.4rem;
  font-family: var(--font-tech);
  letter-spacing: 0.06em;
}

.qr-action-btn {
  display: block;
  width: 100%;
  text-align: center;
  font-family: var(--font-tech);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 0.6rem;
  border-radius: 7px;
  transition: box-shadow 0.2s, transform 0.2s;
  cursor: pointer;
}
.qq-action {
  background: #12b7f5;
  color: #000;
}
.qq-action:hover { box-shadow: 0 0 20px rgba(18,183,245,0.5); transform: translateY(-2px); }
.wechat-action {
  background: #07c160;
  color: #fff;
}
.wechat-action:hover { box-shadow: 0 0 20px rgba(7,193,96,0.4); transform: translateY(-2px); }

@media (max-width: 600px) {
  .qr-panels { grid-template-columns: 1fr; }
}

/* Form */
.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label {
  font-family: var(--font-tech);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  text-transform: uppercase;
}
.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(0,245,255,0.15);
  border-radius: 6px;
  padding: 0.65rem 1rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
  resize: vertical;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: rgba(0,245,255,0.5);
  box-shadow: 0 0 12px rgba(0,245,255,0.1);
  background: rgba(0,245,255,0.03);
}
.form-group select option { background: var(--bg-2); color: var(--text); }
.form-submit {
  font-family: var(--font-tech);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bg-base);
  background: linear-gradient(90deg, var(--cyan), #0088ff);
  border: none;
  border-radius: 6px;
  padding: 0.85rem 2rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: box-shadow 0.25s, transform 0.25s;
  align-self: flex-start;
}
.form-submit:hover {
  box-shadow: var(--glow-cyan);
  transform: translateY(-2px);
}
.form-submit .arrow { font-size: 1rem; }

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  background: var(--bg-1);
  border-top: 1px solid var(--border);
  padding: 60px 10vw 30px;
  position: relative;
  z-index: 2;
}
.footer-inner { max-width: 1400px; margin: 0 auto; }
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}
.footer-brand .logo { margin-bottom: 1rem; }
.footer-tagline {
  font-size: 0.84rem;
  color: var(--text-dim);
  line-height: 1.7;
}
.footer-links-group h4 {
  font-family: var(--font-tech);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.footer-links-group ul { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-links-group a {
  font-size: 0.86rem;
  color: var(--text-dim);
  transition: color 0.2s;
}
.footer-links-group a:hover { color: var(--cyan); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.05);
  font-size: 0.78rem;
  color: var(--text-dim);
}
.footer-bottom-links { display: flex; gap: 1.5rem; }
.footer-bottom-links a { color: var(--text-dim); transition: color 0.2s; }
.footer-bottom-links a:hover { color: var(--cyan); }

/* ============================================================
   SCROLL ANIMATIONS
   ============================================================ */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1200px) {
  .tech-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .products-grid { grid-template-columns: 1fr; max-width: 480px; }
}
@media (max-width: 960px) {
  #hero {
    flex-direction: column;
    text-align: center;
    padding-top: 120px;
  }
  .hero-content { max-width: 100%; }
  .hero-btns, .hero-stats { justify-content: center; }
  .hero-visual { width: 100%; max-width: 360px; }
  .hero-stats { flex-wrap: wrap; gap: 1rem; }
  .stat-divider { display: none; }
  .stat { padding: 0 1rem; }
  .app-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 2rem; }
  .arch-blocks { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  section { padding: 70px 6vw; }
  .tech-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 2rem; }
  .form-row { grid-template-columns: 1fr; }
  .arch-blocks { grid-template-columns: repeat(2, 1fr); }
  .chip-wrapper { width: 280px; height: 280px; }
  .ring1 { width: 260px; height: 260px; }
  .ring2 { width: 210px; height: 210px; }
  .ring3 { width: 170px; height: 170px; }
  .chip-body, .chip-svg { width: 140px; height: 140px; }
}
@media (max-width: 480px) {
  .hero-title { font-size: 2rem; }
  .section-title { font-size: 1.6rem; }
  .app-card { flex-direction: column; }
  .app-img { padding: 1rem; }
  .app-content { padding: 0 1rem 1rem; }
}