/* ============================================================
   鸟盾安全官网 — style.css
   深圳市付讯科技有限公司 · niaodun.cn
   赛博黑客风 · 荧光绿 · 企业级安全科技感
   ============================================================ */

/* ── CSS Variables ──────────────────────────────────────── */
:root {
  --green:       #00ff88;
  --green-dim:   #00cc66;
  --green-dark:  #00ff8822;
  --green-glow:  0 0 8px #00ff88aa, 0 0 20px #00ff8844;
  --green-glow-strong: 0 0 12px #00ff88cc, 0 0 30px #00ff8866, 0 0 60px #00ff8822;
  --bg-black:    #000000;
  --bg-deep:     #060c0a;
  --bg-panel:    #070f0b;
  --bg-card:     #0a1410;
  --bg-card2:    #0c1a14;
  --border:      #00ff881a;
  --border-mid:  #00ff8833;
  --border-bright: #00ff8866;
  --text-primary:   #e8ffe8;
  --text-secondary: #7dba99;
  --text-dim:       #3a6650;
  --cyan:        #00e5ff;
  --cyan-dim:    #00e5ff33;
  --radius:      6px;
  --radius-lg:   12px;
  --font-mono:   'Courier New', 'Consolas', 'Liberation Mono', monospace;
  --font-sans:   -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --transition:  0.25s ease;
  --nav-h:       64px;
  --notice-h:    36px;
}

/* ── Reset & Base ───────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  background: var(--bg-black);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.65;
  overflow-x: hidden;
}

a { color: var(--green); text-decoration: none; transition: color var(--transition); }
a:hover { color: #fff; }

ul { list-style: none; }

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

::selection { background: var(--green); color: #000; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: var(--green-dim); border-radius: 3px; }

/* ── Container ──────────────────────────────────────────── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Buttons ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  border: 1px solid var(--border-mid);
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  letter-spacing: 0.04em;
  position: relative;
  overflow: hidden;
  text-decoration: none;
  font-weight: 500;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--green);
  transform: translateX(-100%);
  transition: transform 0.35s ease;
  z-index: 0;
  opacity: 0.08;
}
.btn:hover::before { transform: translateX(0); }
.btn > * { position: relative; z-index: 1; }

.btn-primary {
  background: transparent;
  border-color: var(--green);
  color: var(--green);
  box-shadow: 0 0 10px #00ff8822;
}
.btn-primary:hover {
  background: var(--green);
  color: #000;
  box-shadow: var(--green-glow);
  font-weight: 700;
}

.btn-ghost {
  background: transparent;
  border-color: var(--border-mid);
  color: var(--text-secondary);
}
.btn-ghost:hover {
  border-color: var(--green);
  color: var(--green);
  box-shadow: 0 0 8px #00ff8833;
}

.btn-lg { padding: 14px 32px; font-size: 0.95rem; }
.btn-block { width: 100%; justify-content: center; }

/* ── Notice Bar ─────────────────────────────────────────── */
.notice-bar {
  height: var(--notice-h);
  background: #000;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  overflow: hidden;
  position: relative;
  z-index: 200;
}
.notice-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  white-space: nowrap;
  animation: marquee-scroll 30s linear infinite;
  font-size: 0.78rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  padding-left: 100%;
}
@keyframes marquee-scroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.notice-inner span[class="notice-inner"] { /* double for seamless */ }
.notice-dot {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
  animation: pulse-dot 1.5s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.7); }
}

/* ── Navbar ─────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: var(--notice-h);
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: 100;
  border-bottom: 1px solid var(--border);
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px);
  transition: all var(--transition);
}
.navbar.scrolled {
  background: rgba(0,0,0,0.97);
  border-color: var(--border-mid);
  box-shadow: 0 2px 30px #00ff881a;
}

.nav-container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 32px;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-icon svg { filter: drop-shadow(0 0 6px var(--green)); }
.logo-text { display: flex; flex-direction: column; }
.logo-main {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--green);
  letter-spacing: 0.08em;
  text-shadow: 0 0 10px var(--green);
  line-height: 1.1;
}
.logo-sub {
  font-size: 0.6rem;
  color: var(--text-dim);
  letter-spacing: 0.14em;
  font-family: var(--font-mono);
}

/* Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.nav-link {
  padding: 6px 14px;
  font-size: 0.84rem;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
  border-radius: var(--radius);
  transition: all var(--transition);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
  transition: width var(--transition);
}
.nav-link:hover,
.nav-link.active {
  color: var(--green);
}
.nav-link:hover::after,
.nav-link.active::after { width: 70%; }

/* Nav Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 4px;
  border: 1px solid var(--border-mid);
  border-radius: 4px;
  padding: 3px 6px;
}
.lang-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 0.78rem;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 3px;
  transition: all var(--transition);
  font-family: var(--font-sans);
  letter-spacing: 0.05em;
}
.lang-btn:hover, .lang-btn.active {
  color: var(--green);
  background: var(--green-dark);
}
.lang-sep { color: var(--text-dim); font-size: 0.7rem; }

/* Hamburger */
.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(--green);
  transition: all var(--transition);
  transform-origin: center;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Menu */
.mobile-menu {
  display: none;
  flex-direction: column;
  background: rgba(0,0,0,0.97);
  border-top: 1px solid var(--border-mid);
  padding: 12px 24px 24px;
}
.mobile-menu.open { display: flex; }
.mobile-menu ul li a {
  display: block;
  padding: 12px 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
  border-bottom: 1px solid var(--border);
  transition: color var(--transition);
}
.mobile-menu ul li a:hover { color: var(--green); }
.mobile-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}
.mobile-lang {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  color: var(--text-dim);
}
.mobile-lang button {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  cursor: pointer;
  padding: 4px 8px;
}
.mobile-lang button:hover { color: var(--green); }

/* ── HERO ───────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  padding-top: calc(var(--notice-h) + var(--nav-h));
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--bg-black);
}

/* Globe Canvas */
#globe-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.55;
  pointer-events: none;
}

/* Grid Background */
.hero-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0,255,136,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,255,136,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 40%, transparent 100%);
}

/* Scan Line */
.scan-line {
  position: absolute;
  left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--green), transparent);
  opacity: 0.4;
  animation: scan-anim 4s linear infinite;
  pointer-events: none;
  box-shadow: 0 0 8px var(--green);
}
@keyframes scan-anim {
  0%   { top: 0; }
  100% { top: 100%; }
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 24px 80px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 60px;
  align-items: center;
  width: 100%;
}

/* Hero Left */
.hero-left { max-width: 660px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border-mid);
  border-radius: 999px;
  padding: 5px 14px;
  font-size: 0.78rem;
  color: var(--green-dim);
  font-family: var(--font-mono);
  margin-bottom: 28px;
  letter-spacing: 0.06em;
  background: var(--green-dark);
}
.badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
  animation: pulse-dot 1.5s ease-in-out infinite;
}

.hero-title {
  font-size: clamp(2.8rem, 5.5vw, 5rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.title-line-1 {
  display: block;
  color: var(--green);
  text-shadow: var(--green-glow);
  letter-spacing: 0.06em;
}
.title-line-2 {
  display: block;
  margin-top: 6px;
}
.title-accent {
  color: var(--text-primary);
  font-size: 0.7em;
  letter-spacing: 0.05em;
}
.title-sep {
  color: var(--green);
  opacity: 0.5;
  font-weight: 300;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 28px;
  line-height: 1.7;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 36px;
}
.tag {
  padding: 4px 12px;
  border: 1px solid var(--border-mid);
  border-radius: 4px;
  font-size: 0.78rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  background: var(--bg-card);
  transition: all var(--transition);
}
.tag:hover {
  border-color: var(--green);
  color: var(--green);
  box-shadow: 0 0 8px #00ff8833;
}

.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* HUD Panel */
.hero-right { flex-shrink: 0; }
.hud-panel {
  width: 320px;
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-lg);
  background: rgba(7,15,11,0.9);
  padding: 0;
  overflow: hidden;
  box-shadow: 0 0 30px #00ff8822, 0 0 60px #00ff8811, inset 0 0 30px #00ff880a;
  animation: float-panel 4s ease-in-out infinite;
  position: relative;
}
.hud-panel::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  border: 1px solid var(--green);
  opacity: 0.1;
  pointer-events: none;
}

@keyframes float-panel {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.hud-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: rgba(0,255,136,0.04);
}
.hud-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--green);
  letter-spacing: 0.12em;
  text-shadow: 0 0 6px var(--green);
}
.hud-status {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
}
.hud-status.online { color: var(--green); animation: blink-status 2s ease-in-out infinite; }
@keyframes blink-status {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hud-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding: 16px;
  gap: 12px;
  border-bottom: 1px solid var(--border);
}
.hud-stat {
  text-align: center;
}
.hud-stat .stat-value {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--green);
  text-shadow: 0 0 10px var(--green);
  line-height: 1.1;
}
.hud-stat .stat-suffix {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--green-dim);
}
.hud-stat .stat-label {
  font-size: 0.65rem;
  color: var(--text-dim);
  margin-top: 4px;
  font-family: var(--font-mono);
}

/* Mini chart */
.hud-chart {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}
.chart-label {
  font-size: 0.66rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
  margin-bottom: 8px;
  letter-spacing: 0.06em;
}
.chart-bars {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 48px;
}
.chart-bar {
  flex: 1;
  background: var(--green);
  border-radius: 2px 2px 0 0;
  opacity: 0.7;
  min-width: 4px;
  transition: height 0.4s ease;
  box-shadow: 0 0 4px var(--green);
}
.chart-bar:hover { opacity: 1; }

/* Radar */
.hud-radar {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}
#radar-canvas { display: block; }
.radar-center {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--green);
  text-align: center;
  text-shadow: 0 0 6px var(--green);
  letter-spacing: 0.08em;
}

.hud-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dim);
  letter-spacing: 0.08em;
}
.blink-dot { animation: blink-status 0.8s ease-in-out infinite; color: var(--green); }

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
}
.scroll-arrow {
  width: 24px; height: 24px;
  border-right: 2px solid var(--green);
  border-bottom: 2px solid var(--green);
  transform: rotate(45deg);
  animation: scroll-bounce 1.8s ease-in-out infinite;
  opacity: 0.6;
}
@keyframes scroll-bounce {
  0%, 100% { transform: rotate(45deg) translateY(0); opacity: 0.6; }
  50% { transform: rotate(45deg) translateY(6px); opacity: 1; }
}

/* ── Section Shared ─────────────────────────────────────── */
section { padding: 100px 0; position: relative; }

.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--green-dim);
  border: 1px solid var(--border-mid);
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
  text-transform: uppercase;
}
.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  margin-bottom: 14px;
  text-shadow: 0 0 30px #00ff8810;
}
.section-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Fade-in animation */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── CAPABILITIES ───────────────────────────────────────── */
.capabilities {
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.capabilities::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,255,136,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,255,136,0.025) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.cap-card {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  position: relative;
  overflow: hidden;
  transition: all 0.35s ease;
}
.cap-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--green) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.35s ease;
  z-index: 0;
  padding: 1px;
}
.cap-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 2px;
  background: linear-gradient(90deg, transparent, var(--green), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.cap-card:hover {
  border-color: var(--border-bright);
  background: var(--bg-card2);
  transform: translateY(-4px);
  box-shadow: 0 8px 40px #00ff8818, 0 0 0 1px var(--border-mid);
}
.cap-card:hover::after { opacity: 1; }
.cap-card > * { position: relative; z-index: 1; }
.cap-card[data-delay="100"] { transition-delay: 0.1s; }
.cap-card[data-delay="200"] { transition-delay: 0.2s; }
.cap-card[data-delay="300"] { transition-delay: 0.3s; }
.cap-card[data-delay="400"] { transition-delay: 0.4s; }
.cap-card[data-delay="500"] { transition-delay: 0.5s; }

.cap-icon {
  width: 60px; height: 60px;
  border: 1px solid var(--border-mid);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  background: var(--green-dark);
  filter: drop-shadow(0 0 6px var(--green));
  transition: all var(--transition);
}
.cap-card:hover .cap-icon {
  box-shadow: 0 0 16px #00ff8844;
  border-color: var(--green);
}

.cap-card .cap-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-primary);
}
.cap-card .cap-desc {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 16px;
}
.cap-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.cap-tags span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--green-dim);
  border: 1px solid var(--border-mid);
  padding: 2px 8px;
  border-radius: 3px;
  background: var(--green-dark);
  letter-spacing: 0.04em;
}

/* ── PRODUCTS ───────────────────────────────────────────── */
.products-section {
  background: var(--bg-black);
}
.products-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.products-left { display: flex; flex-direction: column; gap: 0; }

.product-item {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}
.product-item::before {
  content: '';
  position: absolute;
  left: -24px;
  top: 0; bottom: 0;
  width: 3px;
  background: var(--green);
  opacity: 0;
  transition: opacity var(--transition);
  box-shadow: 0 0 8px var(--green);
}
.product-item.active::before, .product-item:hover::before { opacity: 1; }
.product-item.active, .product-item:hover { padding-left: 12px; }

.product-num {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--border-mid);
  flex-shrink: 0;
  width: 54px;
  line-height: 1;
  padding-top: 4px;
  transition: color var(--transition);
}
.product-item.active .product-num,
.product-item:hover .product-num { color: var(--green); text-shadow: 0 0 10px var(--green); }

.product-info h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-primary);
  transition: color var(--transition);
}
.product-info p {
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.product-item.active .product-info h4,
.product-item:hover .product-info h4 { color: var(--green); }

.products-right { position: sticky; top: 120px; }
.product-visual {
  position: relative;
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-panel);
  box-shadow: 0 0 40px #00ff8815;
}
#network-canvas { display: block; width: 100%; }
.product-visual-overlay {
  position: absolute;
  bottom: 20px;
  left: 16px;
  right: 16px;
  display: flex;
  justify-content: space-around;
}
.pv-stat {
  text-align: center;
  background: rgba(0,0,0,0.7);
  border: 1px solid var(--border-mid);
  border-radius: 8px;
  padding: 10px 18px;
  backdrop-filter: blur(8px);
}
.pv-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--green);
  text-shadow: 0 0 8px var(--green);
}
.pv-label {
  display: block;
  font-size: 0.7rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* ── SOLUTIONS ──────────────────────────────────────────── */
.solutions-section {
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.solution-card {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  transition: all 0.35s ease;
  position: relative;
  overflow: hidden;
}
.solution-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--green), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.solution-card:hover {
  border-color: var(--border-bright);
  transform: translateY(-4px);
  box-shadow: 0 8px 40px #00ff8815;
}
.solution-card:hover::after { opacity: 1; }
.solution-card[data-delay="100"] { transition-delay: 0.1s; }
.solution-card[data-delay="200"] { transition-delay: 0.2s; }
.solution-card[data-delay="300"] { transition-delay: 0.3s; }
.solution-card[data-delay="400"] { transition-delay: 0.4s; }
.solution-card[data-delay="500"] { transition-delay: 0.5s; }

.solution-icon {
  width: 52px; height: 52px;
  border: 1px solid var(--border-mid);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  background: var(--green-dark);
}
.solution-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 14px;
  color: var(--text-primary);
}
.solution-card ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}
.solution-card ul li {
  font-size: 0.84rem;
  color: var(--text-secondary);
  padding-left: 14px;
  position: relative;
}
.solution-card ul li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--green);
  font-size: 0.7rem;
  line-height: 1.6;
}
.sol-link {
  font-size: 0.82rem;
  color: var(--green-dim);
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  transition: all var(--transition);
}
.sol-link:hover { color: var(--green); text-shadow: 0 0 6px var(--green); }

/* ── AI SECURITY ────────────────────────────────────────── */
.ai-section {
  background: var(--bg-black);
  position: relative;
  overflow: hidden;
}
.ai-bg-anim {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
#ai-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.35;
}

.ai-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.ai-text .section-title { text-align: left; }

.ai-intro {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 32px;
}

.ai-features {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 36px;
}
.ai-feat {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.ai-feat-icon {
  font-size: 1.2rem;
  color: var(--green);
  text-shadow: 0 0 8px var(--green);
  flex-shrink: 0;
  margin-top: 2px;
  animation: rotate-icon 6s linear infinite;
}
@keyframes rotate-icon {
  0%, 100% { text-shadow: 0 0 8px var(--green); }
  50% { text-shadow: 0 0 16px var(--green), 0 0 30px var(--green); }
}
.ai-feat h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text-primary);
}
.ai-feat p {
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* AI Panel */
.ai-panel {
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-lg);
  background: rgba(7,15,11,0.95);
  overflow: hidden;
  box-shadow: 0 0 40px #00ff8820, inset 0 0 40px #00ff880a;
}
.ai-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: rgba(0,255,136,0.04);
}
.ai-panel-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--green);
  letter-spacing: 0.12em;
}
.ai-panel-ver {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dim);
}

.ai-terminal {
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  border-bottom: 1px solid var(--border);
  background: rgba(0,0,0,0.5);
}
.terminal-line {
  padding: 3px 0;
  opacity: 0;
  animation: term-appear 0.4s ease forwards;
}
.terminal-line:nth-child(1) { animation-delay: 0.3s; }
.terminal-line:nth-child(2) { animation-delay: 0.9s; }
.terminal-line:nth-child(3) { animation-delay: 1.5s; }
.terminal-line:nth-child(4) { animation-delay: 2.1s; }
.terminal-line:nth-child(5) { animation-delay: 2.7s; }
.terminal-line:nth-child(6) { animation-delay: 3.3s; }
@keyframes term-appear {
  from { opacity: 0; transform: translateX(-10px); }
  to   { opacity: 1; transform: translateX(0); }
}
.terminal-line.blink .term-text { animation: blink-status 1s ease-in-out infinite; }
.term-prefix { color: var(--green); margin-right: 2px; }
.term-text { color: var(--text-secondary); }
.terminal-line:nth-child(3) .term-text { color: #ffcc00; }
.terminal-line:nth-child(4) .term-text { color: #ff4466; }

.ai-metrics {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.ai-metric {}
.metric-info {
  display: flex;
  justify-content: space-between;
  font-size: 0.76rem;
  color: var(--text-secondary);
  margin-bottom: 5px;
}
.metric-val {
  color: var(--green);
  font-family: var(--font-mono);
}
.metric-bar {
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
  position: relative;
}
.metric-bar::after {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: var(--pct);
  background: linear-gradient(90deg, var(--green-dim), var(--green));
  border-radius: 3px;
  box-shadow: 0 0 6px var(--green);
  animation: bar-fill 1.5s ease forwards;
}
@keyframes bar-fill {
  from { width: 0; }
  to   { width: var(--pct); }
}

/* ── ADVANTAGES ─────────────────────────────────────────── */
.advantages-section {
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.adv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.adv-card {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  transition: all 0.35s ease;
  position: relative;
}
.adv-card:hover {
  border-color: var(--border-bright);
  background: var(--bg-card2);
  transform: translateY(-3px);
  box-shadow: 0 6px 30px #00ff8815;
}
.adv-card[data-delay="80"]  { transition-delay: 0.08s; }
.adv-card[data-delay="160"] { transition-delay: 0.16s; }
.adv-card[data-delay="240"] { transition-delay: 0.24s; }
.adv-card[data-delay="320"] { transition-delay: 0.32s; }
.adv-card[data-delay="400"] { transition-delay: 0.40s; }
.adv-num {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--border-mid);
  line-height: 1;
  margin-bottom: 12px;
  transition: color var(--transition);
}
.adv-card:hover .adv-num { color: var(--green); text-shadow: 0 0 10px var(--green); }
.adv-card h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}
.adv-card p {
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ── DATA VISUALIZATION ─────────────────────────────────── */
.data-section {
  background: var(--bg-black);
}
.data-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.data-globe {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}
#world-canvas {
  display: block;
  width: 100%;
  max-width: 420px;
  filter: drop-shadow(0 0 20px #00ff8840);
}
.globe-label {
  font-size: 0.76rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  margin-top: 12px;
  text-align: center;
}

.data-panels {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.data-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  background: var(--bg-card);
}
.dp-header {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--green-dim);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.dp-stats {
  display: flex;
  gap: 24px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.dp-stat {}
.dp-val {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--green);
  text-shadow: 0 0 8px var(--green);
  line-height: 1.1;
}
.dp-label {
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-top: 2px;
}
#line-chart { display: block; width: 100%; height: 80px; }

/* Threat Bars */
.threat-bars {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.tb-item {}
.tb-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.76rem;
  color: var(--text-secondary);
  margin-bottom: 4px;
}
.tb-bar-wrap {
  height: 8px;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
}
.tb-bar {
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--green-dim), var(--green));
  box-shadow: 0 0 6px var(--green);
  transition: width 1s ease;
}

/* Node Stats */
.node-stats {
  display: flex;
  gap: 12px;
}
.ns-item {
  flex: 1;
  text-align: center;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-panel);
}
.ns-item.green { border-color: #00ff8866; }
.ns-item.yellow { border-color: #ffcc0044; }
.ns-item.blue { border-color: #00e5ff44; }
.ns-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1.1;
}
.ns-item.green .ns-num { color: var(--green); }
.ns-item.yellow .ns-num { color: #ffcc00; }
.ns-item.blue .ns-num { color: var(--cyan); }
.ns-label {
  font-size: 0.7rem;
  color: var(--text-dim);
  margin-top: 4px;
  display: block;
}

/* ── ABOUT ──────────────────────────────────────────────── */
.about-section {
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.about-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.about-text .section-title { text-align: left; }
.about-intro {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 28px;
}
.about-brands {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 28px;
}
.brand-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.brand-icon {
  color: var(--green);
  flex-shrink: 0;
  font-size: 1rem;
  margin-top: 2px;
}
.brand-item strong {
  display: block;
  color: var(--green-dim);
  font-size: 0.88rem;
  margin-bottom: 2px;
}
.brand-item span {
  font-size: 0.82rem;
  color: var(--text-secondary);
}
.about-values {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.value-item {
  border: 1px solid var(--border-mid);
  border-radius: var(--radius);
  padding: 6px 16px;
  background: var(--green-dark);
}
.value-kw {
  font-size: 0.82rem;
  color: var(--green);
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
}

.about-visual {}
.about-hud {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}
.about-hud-ring { position: relative; }
#about-ring { display: block; }
.about-hud-info {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
}
.ahi-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}
.ahi-row:last-child { border-bottom: none; }
.ahi-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.08em;
  width: 64px;
  flex-shrink: 0;
}
.ahi-val {
  font-size: 0.84rem;
  color: var(--text-secondary);
}

/* ── CONTACT ────────────────────────────────────────────── */
.contact-section {
  background: var(--bg-black);
}
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.contact-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
  margin-bottom: 20px;
}
.contact-item {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
.contact-item:last-child { border-bottom: none; }
.contact-item:hover { background: var(--bg-card2); }
.ci-icon {
  width: 36px; height: 36px;
  border: 1px solid var(--border-mid);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--green-dark);
  flex-shrink: 0;
}
.ci-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.ci-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dim);
  letter-spacing: 0.08em;
}
.ci-val {
  font-size: 0.9rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.ci-val a { color: var(--text-primary); }
.ci-val a:hover { color: var(--green); }

.copy-btn {
  font-size: 0.68rem;
  padding: 2px 8px;
  border: 1px solid var(--border-mid);
  border-radius: 4px;
  color: var(--text-dim);
  background: none;
  cursor: pointer;
  font-family: var(--font-mono);
  transition: all var(--transition);
  letter-spacing: 0.04em;
}
.copy-btn:hover {
  border-color: var(--green);
  color: var(--green);
}

.contact-cta-btns {
  display: flex;
  gap: 12px;
}

/* Form */
.form-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  background: var(--bg-card);
}
.form-panel h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-primary);
}
.form-panel p {
  font-size: 0.84rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}
.form-group {
  margin-bottom: 16px;
}
.form-group label {
  display: block;
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--bg-panel);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius);
  padding: 10px 14px;
  color: var(--text-primary);
  font-size: 0.88rem;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px #00ff8818;
}
.form-group select option { background: var(--bg-deep); }
.form-group textarea { resize: vertical; }

/* 两列表单行 */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 16px;
}
@media (max-width: 520px) {
  .form-row { grid-template-columns: 1fr; }
}

/* 错误提示框 */
.form-error {
  background: rgba(180,20,20,.15);
  border: 1px solid rgba(255,60,60,.5);
  border-left: 3px solid #ff3333;
  color: #ff7070;
  font-size: .85rem;
  padding: 10px 14px;
  border-radius: 4px;
  margin-bottom: 12px;
  white-space: pre-line;
  animation: errShake .3s ease;
}
@keyframes errShake {
  0%,100%{transform:translateX(0)}
  25%{transform:translateX(-6px)}
  75%{transform:translateX(6px)}
}

/* 字段校验失败 */
.is-invalid input,
.is-invalid select,
.is-invalid textarea,
input.is-invalid,
select.is-invalid,
textarea.is-invalid {
  border-color: #ff3333 !important;
  box-shadow: 0 0 0 2px rgba(255,50,50,.2) !important;
}

/* 按鈕加载状态 */
.btn.is-loading {
  cursor: wait;
  opacity: .75;
  position: relative;
}
.btn.is-loading::after {
  content: '';
  display: inline-block;
  width: .85em;
  height: .85em;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  margin-left: .5em;
  vertical-align: middle;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.form-success {
  text-align: center;
  padding: 40px 20px;
}
.success-icon {
  font-size: 3rem;
  color: var(--green);
  text-shadow: var(--green-glow);
  margin-bottom: 12px;
  animation: bounce-in 0.5s ease;
}
@keyframes bounce-in {
  0% { transform: scale(0); }
  70% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

/* ── FOOTER ─────────────────────────────────────────────── */
.footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border-mid);
  position: relative;
  padding: 64px 0 0;
  overflow: hidden;
}
.footer-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,255,136,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,255,136,0.02) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
}
.footer-main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 48px;
  position: relative;
  z-index: 1;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.footer-brand-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--green);
  text-shadow: 0 0 8px var(--green);
  letter-spacing: 0.08em;
}
.footer-brand-tagline {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 14px;
  max-width: 280px;
}
.footer-icp a {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}
.footer-icp a:hover { color: var(--green-dim); }

.footer-nav h5, .footer-contact h5 {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
  font-family: var(--font-mono);
}
.footer-nav ul li {
  margin-bottom: 8px;
}
.footer-nav ul li a {
  font-size: 0.84rem;
  color: var(--text-secondary);
  transition: color var(--transition);
}
.footer-nav ul li a:hover { color: var(--green); }

.fc-items {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}
.fc-item {
  display: flex;
  align-items: center;
  gap: 10px;
}
.fc-icon {
  color: var(--green);
  font-size: 0.9rem;
  flex-shrink: 0;
  width: 20px;
  text-align: center;
}
.fc-item a, .fc-item span {
  font-size: 0.84rem;
  color: var(--text-secondary);
}
.fc-item a:hover { color: var(--green); }

.footer-lang {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--text-dim);
}
.footer-lang button {
  background: none;
  border: 1px solid var(--border-mid);
  color: var(--text-secondary);
  font-size: 0.76rem;
  padding: 3px 10px;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition);
}
.footer-lang button:hover,
.footer-lang button.active-lang {
  border-color: var(--green);
  color: var(--green);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.76rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  position: relative;
  z-index: 1;
}
.footer-domain {
  color: var(--green-dim);
}

/* ── FLOAT CONTACT ──────────────────────────────────────── */
.float-contact {
  position: fixed;
  bottom: 30px;
  right: 24px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}
.fc-toggle {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  color: var(--green);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  box-shadow: 0 0 16px #00ff8830;
}
.fc-toggle:hover {
  border-color: var(--green);
  box-shadow: var(--green-glow);
  transform: scale(1.08);
}
.fc-panel {
  display: none;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  min-width: 200px;
  overflow: hidden;
  box-shadow: 0 8px 40px #00000088, 0 0 20px #00ff8818;
}
.fc-panel.open { display: flex; }
.fcp-title {
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--green);
  letter-spacing: 0.1em;
  border-bottom: 1px solid var(--border);
  background: rgba(0,255,136,0.04);
}
.fcp-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.82rem;
  transition: all var(--transition);
}
.fcp-item:last-child { border-bottom: none; }
.fcp-item:hover {
  background: var(--bg-card2);
  color: var(--green);
}
.fcp-item span:first-child {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dim);
}

/* ── Copy Toast ─────────────────────────────────────────── */
.copy-toast {
  position: fixed;
  bottom: 90px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--bg-card2);
  border: 1px solid var(--border-mid);
  color: var(--green);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 8px 20px;
  border-radius: 999px;
  z-index: 9999;
  opacity: 0;
  transition: all 0.3s ease;
  pointer-events: none;
  letter-spacing: 0.08em;
}
.copy-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ── HUD Corner Decorations ─────────────────────────────── */
.hud-corner {
  position: absolute;
  width: 20px; height: 20px;
  pointer-events: none;
}
.hud-corner::before,
.hud-corner::after {
  content: '';
  position: absolute;
  background: var(--green);
}
.hud-corner.tl { top: 0; left: 0; }
.hud-corner.tl::before { top: 0; left: 0; width: 100%; height: 2px; }
.hud-corner.tl::after  { top: 0; left: 0; width: 2px; height: 100%; }
.hud-corner.tr { top: 0; right: 0; }
.hud-corner.tr::before { top: 0; right: 0; width: 100%; height: 2px; }
.hud-corner.tr::after  { top: 0; right: 0; width: 2px; height: 100%; }

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 1100px) {
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .solutions-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .nav-menu, .nav-actions .btn { display: none; }
  .hamburger { display: flex; }
  .nav-actions { gap: 8px; }
  .nav-actions .lang-switcher { display: flex; }

  .hero-content { grid-template-columns: 1fr; }
  .hero-right { display: none; }

  .products-layout { grid-template-columns: 1fr; }
  .products-right { display: none; }

  .ai-layout { grid-template-columns: 1fr; }
  .data-layout { grid-template-columns: 1fr; }
  .about-layout { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  :root { --notice-h: 32px; }
  section { padding: 64px 0; }
  .container { padding: 0 16px; }
  .cap-grid { grid-template-columns: 1fr; }
  .adv-grid { grid-template-columns: 1fr; }
  .solutions-grid { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr; }
  .hero-title { font-size: 2.2rem; }
  .section-title { font-size: 1.6rem; }
  .hero-cta { flex-direction: column; }
  .contact-cta-btns { flex-direction: column; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}

/* ── Utility ─────────────────────────────────────────────── */
.text-green { color: var(--green); }
.text-dim { color: var(--text-dim); }
.font-mono { font-family: var(--font-mono); }

/* Pulse animation for live indicators */
@keyframes live-pulse {
  0% { box-shadow: 0 0 0 0 rgba(0,255,136,0.4); }
  70% { box-shadow: 0 0 0 10px rgba(0,255,136,0); }
  100% { box-shadow: 0 0 0 0 rgba(0,255,136,0); }
}
.live-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--green);
  animation: live-pulse 2s ease-in-out infinite;
}