/* ==========================================================================
   机场优选 - CYBER TECH DESIGN SYSTEM & ENHANCEMENTS
   ========================================================================== */

:root {
  --cyber-cyan: #00f2fe;
  --cyber-blue: #3157d5;
  --cyber-electric: #2563eb;
  --cyber-indigo: #6366f1;
  --cyber-purple: #8b5cf6;
  --cyber-emerald: #10b981;
  --cyber-dark: #0a1128;
  --cyber-dark-card: #0f1938;
  --cyber-border-glow: rgba(99, 102, 241, 0.28);
  --cyber-grid-line: rgba(215, 225, 242, 0.6);
}

html, body {
  overflow-x: hidden;
}

/* Background Cyber Grid Pattern */
body {
  background-color: #f6f8fd;
  background-image: 
    radial-gradient(circle at 14% 10%, rgba(59, 130, 246, 0.09), transparent 30%),
    radial-gradient(circle at 86% 22%, rgba(6, 182, 212, 0.08), transparent 28%),
    radial-gradient(circle at 50% 55%, rgba(99, 102, 241, 0.05), transparent 35%),
    linear-gradient(var(--cyber-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--cyber-grid-line) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 100% 100%, 36px 36px, 36px 36px;
}

/* Header Tech Polish */
.site-header {
  backdrop-filter: blur(20px);
  background: rgba(246, 248, 253, 0.88);
  border-bottom: 1px solid rgba(218, 226, 240, 0.85);
}
.logo {
  font-weight: 800;
  letter-spacing: -0.03em;
}
.logo-mark {
  background: linear-gradient(135deg, #1d4ed8, #00f2fe);
  box-shadow: 0 0 16px rgba(0, 242, 254, 0.35), inset 0 0 0 1px rgba(255, 255, 255, 0.3);
}

/* --------------------------------------------------------------------------
   1. HIGH-TECH HERO SECTION
   -------------------------------------------------------------------------- */
.hero-tech {
  padding: 72px 0 65px;
  position: relative;
  overflow: hidden;
}
.hero-tech::before {
  content: "";
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(49, 87, 213, 0.12), transparent 70%);
  left: -200px;
  top: -150px;
  pointer-events: none;
}
.hero-tech .hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 52px;
  position: relative;
  z-index: 2;
}

/* Tech Status Pill */
.tech-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(99, 102, 241, 0.28);
  border-radius: 99px;
  font-size: 12px;
  font-weight: 650;
  color: #1e3a8a;
  box-shadow: 0 4px 18px rgba(37, 99, 235, 0.08);
  backdrop-filter: blur(10px);
}
.radar-ping {
  position: relative;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
}
.radar-ping::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid #10b981;
  animation: pingPulse 2s cubic-bezier(0, 0.2, 0.8, 1) infinite;
}
@keyframes pingPulse {
  0% { transform: scale(0.6); opacity: 1; }
  100% { transform: scale(2.4); opacity: 0; }
}
.pill-code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 11px;
  color: #2563eb;
  letter-spacing: 0.05em;
  font-weight: 750;
}
.pill-sep {
  width: 1px;
  height: 12px;
  background: #cbd5e1;
}

/* Hero Typography */
.hero-tech h1 {
  font-size: clamp(36px, 4.8vw, 56px);
  line-height: 1.15;
  letter-spacing: -0.045em;
  margin: 20px 0 16px;
  color: #0f172a;
}
.cyber-gradient {
  background: linear-gradient(110deg, #1e40af 0%, #2563eb 38%, #0284c7 72%, #4f46e5 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: inline-block;
}
.hero-tech .lead {
  font-size: 16px;
  line-height: 1.75;
  color: #475569;
  max-width: 580px;
  margin: 0 0 24px;
}

/* Tech CTA Buttons */
.hero-tech .hero-actions {
  display: flex;
  gap: 14px;
  margin-bottom: 24px;
}
.tech-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 22px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}
.tech-btn-primary {
  background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 60%, #3b82f6 100%);
  color: #ffffff;
  box-shadow: 0 10px 25px rgba(29, 78, 216, 0.32), inset 0 1px 0 rgba(255, 255, 255, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.15);
}
.tech-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(29, 78, 216, 0.45);
  background: linear-gradient(135deg, #1e40af 0%, #1d4ed8 60%, #2563eb 100%);
}
.tech-btn-primary .btn-glow {
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
  animation: sweepLight 4s ease-in-out infinite;
}
@keyframes sweepLight {
  0% { left: -100%; }
  35%, 100% { left: 100%; }
}
.tech-btn-secondary {
  background: rgba(255, 255, 255, 0.9);
  color: #1e293b;
  border: 1px solid #cbd5e1;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.04);
  backdrop-filter: blur(8px);
}
.tech-btn-secondary:hover {
  border-color: #3b82f6;
  color: #1d4ed8;
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(59, 130, 246, 0.15);
}

/* 4-Column HUD Telemetry Stats */
.tech-hud-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(203, 213, 225, 0.85);
  border-radius: 14px;
  padding: 14px 10px;
  margin-bottom: 20px;
  box-shadow: 0 6px 20px rgba(30, 58, 138, 0.04);
  backdrop-filter: blur(10px);
  position: relative;
}
.hud-stat-col {
  padding: 0 14px;
  border-right: 1px solid #e2e8f0;
  position: relative;
}
.hud-stat-col:last-child {
  border-right: none;
}
.hud-stat-val {
  display: block;
  font-size: 20px;
  font-weight: 850;
  letter-spacing: -0.03em;
  color: #0f172a;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, sans-serif;
}
.hud-stat-lbl {
  display: block;
  font-size: 11px;
  color: #64748b;
  margin-top: 3px;
  font-weight: 600;
}
.hud-corner-tl, .hud-corner-tr {
  position: absolute;
  top: -8px;
  font-size: 11px;
  color: #94a3b8;
  font-family: monospace;
}
.hud-corner-tl { left: 6px; }
.hud-corner-tr { right: 6px; }

/* Hot Recommendations & Trust Row */
.hero-recos-tech {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
  font-size: 12px;
}
.recos-label {
  color: #475569;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.radar-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 8px #10b981;
}
.reco-chip {
  padding: 5px 11px;
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  color: #1d4ed8;
  font-weight: 700;
  font-size: 12px;
  transition: all 0.2s;
}
.reco-chip:hover {
  border-color: #3b82f6;
  background: #eff6ff;
  transform: translateY(-1px);
}
.trust-row-tech {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 12px;
  color: #64748b;
  margin-top: 14px;
}
.check-icon {
  font-style: normal;
  color: #10b981;
  font-weight: 900;
  margin-right: 4px;
}

/* --------------------------------------------------------------------------
   RIGHT COLUMN: GLOBAL NETWORK TOPOLOGY HUD CONSOLE
   -------------------------------------------------------------------------- */
.hero-art {
  position: relative;
  min-height: 500px;
}
.tech-console-card {
  position: relative;
  background: linear-gradient(155deg, #091126 0%, #0f1c3f 50%, #162a5c 100%);
  border: 1px solid rgba(99, 102, 241, 0.35);
  border-radius: 28px;
  padding: 22px 24px 22px;
  color: #ffffff;
  box-shadow: 0 35px 75px -15px rgba(10, 20, 50, 0.48), 
              inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  overflow: hidden;
}
.tech-console-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}

/* Console Top HUD */
.console-hud-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
  padding-bottom: 12px;
  position: relative;
  z-index: 2;
}
.hud-top-left {
  display: flex;
  align-items: center;
  gap: 8px;
}
.live-led {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 8px #10b981;
  animation: ledBlink 1.8s infinite;
}
@keyframes ledBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}
.hud-title {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: #93c5fd;
  font-weight: 700;
}
.hud-top-right {
  display: flex;
  align-items: center;
  gap: 8px;
}
.hud-metric-pill {
  font-family: ui-monospace, SFMono-Regular, monospace;
  font-size: 10px;
  background: rgba(255, 255, 255, 0.08);
  padding: 3px 7px;
  border-radius: 5px;
  color: #cbd5e1;
}
.hud-status-tag {
  font-family: ui-monospace, SFMono-Regular, monospace;
  font-size: 10px;
  font-weight: 800;
  color: #10b981;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 2px 7px;
  border-radius: 5px;
}

/* SVG Topology Stage */
.topology-stage {
  position: relative;
  margin: 10px 0 14px;
  height: 250px;
}
.tech-topology-svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

/* Laser pulses */
.laser-pulse {
  stroke-dasharray: 25 90;
  animation: laserStream 3.2s linear infinite;
}
.laser-pulse.p2 { animation-delay: 0.8s; }
.laser-pulse.p3 { animation-delay: 1.6s; }
.laser-pulse.p4 { animation-delay: 2.4s; }
@keyframes laserStream {
  from { stroke-dashoffset: 115; }
  to { stroke-dashoffset: 0; }
}

/* Node Rings */
.ping-ring {
  animation: nodeWave 2.5s cubic-bezier(0, 0.2, 0.8, 1) infinite;
  fill: none;
}
.ping-cyan { stroke: #00f2fe; }
.ping-blue { stroke: #60a5fa; }
.ping-purple { stroke: #c084fc; }
.ping-green { stroke: #34d399; }
@keyframes nodeWave {
  0% { r: 5px; opacity: 0.9; stroke-width: 2px; }
  100% { r: 22px; opacity: 0; stroke-width: 0.8px; }
}

.node-label {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 9px;
  fill: #94a3b8;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.node-label.highlight {
  fill: #67e8f9;
  font-weight: 800;
}

/* Active Route Deck inside Console */
.tech-route-deck {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  position: relative;
  z-index: 2;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.deck-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(9, 18, 45, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  padding: 8px 10px;
  backdrop-filter: blur(8px);
}
.deck-badge {
  width: 26px;
  height: 26px;
  border-radius: 7px;
  background: rgba(59, 130, 246, 0.25);
  color: #93c5fd;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 12px;
  flex-shrink: 0;
}
.deck-info b {
  display: block;
  font-size: 12px;
  color: #ffffff;
}
.deck-info small {
  display: block;
  font-size: 9px;
  color: #94a3b8;
  white-space: nowrap;
}
.deck-price {
  margin-left: auto;
  font-family: ui-monospace, monospace;
  font-size: 13px;
  color: #38bdf8;
  font-weight: 800;
}

/* Floating Telemetry Widgets */
.floating-hud-panel {
  position: absolute;
  z-index: 4;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(203, 213, 225, 0.9);
  border-radius: 16px;
  padding: 14px 16px;
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.16);
  backdrop-filter: blur(12px);
}
.float-throughput {
  right: -14px;
  top: 38px;
  width: 200px;
}
.hud-panel-head {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  font-weight: 700;
  color: #64748b;
  margin-bottom: 8px;
}
.hud-panel-head .panel-tag {
  color: #1d4ed8;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.hud-panel-body {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 8px;
}
.hud-big-metric {
  display: flex;
  align-items: baseline;
  gap: 3px;
}
.hud-big-metric .metric-number {
  font-size: 26px;
  font-weight: 850;
  letter-spacing: -0.04em;
  color: #0f172a;
  font-family: ui-monospace, monospace;
}
.hud-big-metric .metric-unit {
  font-size: 12px;
  color: #64748b;
  font-weight: 700;
}
.hud-eq-bars {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 28px;
}
.eq-bar {
  width: 4px;
  background: linear-gradient(to top, #3b82f6, #00f2fe);
  border-radius: 2px;
  animation: eqJump 1.2s ease-in-out infinite alternate;
}
.eq-bar:nth-child(2) { animation-delay: 0.15s; }
.eq-bar:nth-child(3) { animation-delay: 0.3s; }
.eq-bar:nth-child(4) { animation-delay: 0.45s; }
.eq-bar:nth-child(5) { animation-delay: 0.6s; }
.eq-bar:nth-child(6) { animation-delay: 0.75s; }
.eq-bar:nth-child(7) { animation-delay: 0.9s; }
.eq-bar:nth-child(8) { animation-delay: 0.35s; }
.eq-bar:nth-child(9) { animation-delay: 0.5s; }
.eq-bar:nth-child(10) { animation-delay: 0.2s; }
@keyframes eqJump {
  0% { height: 20%; opacity: 0.5; }
  50% { height: 95%; opacity: 1; }
  100% { height: 45%; opacity: 0.7; }
}
.hud-panel-foot {
  font-size: 9px;
  color: #64748b;
  border-top: 1px solid #f1f5f9;
  padding-top: 6px;
}

/* Floating Median Pill - Positioned safely on left side of console */
.floating-hud-pill {
  position: absolute;
  z-index: 5;
  left: -22px;
  top: 135px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(203, 213, 225, 0.9);
  border-radius: 14px;
  padding: 10px 15px;
  box-shadow: 0 16px 36px rgba(15, 23, 42, 0.14);
  backdrop-filter: blur(10px);
  animation: pillFloat 4s ease-in-out infinite;
}
@keyframes pillFloat {
  50% { transform: translateY(-6px); }
}
.floating-hud-pill small {
  display: block;
  font-size: 10px;
  color: #64748b;
  font-weight: 600;
}
.floating-hud-pill b {
  font-size: 18px;
  color: #1e3a8a;
  letter-spacing: -0.03em;
}
.floating-hud-pill .pill-badge {
  display: inline-block;
  margin-left: 6px;
  font-size: 9px;
  padding: 2px 6px;
  background: #dbeafe;
  color: #1e40af;
  border-radius: 4px;
  font-weight: 700;
}

/* --------------------------------------------------------------------------
   2. EDITORIAL TELEMETRY STRIP (TICKER BAND)
   -------------------------------------------------------------------------- */
.editorial-strip.tech-ticker-band {
  background: rgba(255, 255, 255, 0.9);
  border-top: 1px solid #e2e8f0;
  border-bottom: 1px solid #e2e8f0;
  backdrop-filter: blur(12px);
  padding: 2px 0;
}
.strip-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: 52px;
  overflow-x: auto;
  white-space: nowrap;
  font-size: 13px;
  color: #475569;
  font-weight: 550;
}
.tech-chip {
  background: linear-gradient(135deg, #09132b, #172a59);
  color: #38bdf8;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 750;
  border: 1px solid rgba(56, 189, 248, 0.35);
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.2);
}

/* --------------------------------------------------------------------------
   3. TELEMETRY INFRASTRUCTURE BOARD (4 HUD CARDS)
   -------------------------------------------------------------------------- */
.section-tech-metrics {
  padding: 45px 0 65px;
}
.tech-metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.tech-metric-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 18px;
  padding: 22px 20px;
  box-shadow: 0 10px 30px rgba(30, 58, 138, 0.04);
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}
.tech-metric-card:hover {
  transform: translateY(-3px);
  border-color: #93c5fd;
  box-shadow: 0 16px 36px rgba(37, 99, 235, 0.1);
}
.tech-metric-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #3b82f6, #00f2fe);
  opacity: 0;
  transition: opacity 0.25s;
}
.tech-metric-card:hover::after {
  opacity: 1;
}
.metric-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.hud-marker {
  font-family: monospace;
  font-size: 13px;
  color: #94a3b8;
}
.metric-tag {
  font-family: ui-monospace, SFMono-Regular, monospace;
  font-size: 10px;
  font-weight: 750;
  color: #2563eb;
  letter-spacing: 0.08em;
}
.metric-num {
  font-size: 32px;
  font-weight: 850;
  color: #0f172a;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 8px;
  font-family: ui-monospace, monospace;
}
.metric-num small {
  font-size: 15px;
  color: #64748b;
  margin-left: 4px;
}
.metric-title {
  font-size: 15px;
  font-weight: 750;
  color: #1e293b;
  margin-bottom: 6px;
}
.metric-desc {
  font-size: 12px;
  color: #64748b;
  line-height: 1.6;
  margin: 0 0 14px;
}
.metric-bar-wrap {
  height: 4px;
  background: #f1f5f9;
  border-radius: 99px;
  overflow: hidden;
}
.metric-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #2563eb, #00f2fe);
  border-radius: 99px;
}

/* --------------------------------------------------------------------------
   4. BRAND SHORTLIST & CARDS TECH POLISH
   -------------------------------------------------------------------------- */
.tech-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px;
  background: rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(37, 99, 235, 0.2);
  color: #1d4ed8;
  font-family: ui-monospace, monospace;
  font-size: 11px;
  font-weight: 750;
  border-radius: 99px;
  letter-spacing: 0.06em;
}
.tech-link-btn {
  color: #2563eb;
  font-weight: 700;
  font-size: 13px;
  padding: 8px 14px;
  border: 1px solid #cbd5e1;
  background: #ffffff;
  border-radius: 9px;
  transition: all 0.2s;
  text-decoration: none;
}
.tech-link-btn:hover {
  border-color: #2563eb;
  background: #eff6ff;
}

.brand-card {
  position: relative;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 18px;
  padding: 22px;
  transition: all 0.25s ease;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.03);
}
.brand-card:hover {
  transform: translateY(-4px);
  border-color: #93c5fd;
  box-shadow: 0 20px 40px rgba(37, 99, 235, 0.12);
}
.brand-card.featured {
  border-color: #bfdbfe;
  background: linear-gradient(180deg, #ffffff 0%, #f8faff 100%);
  box-shadow: 0 14px 36px rgba(37, 99, 235, 0.09);
}
.brand-card.featured::before {
  content: "★ 主推优选";
  position: absolute;
  top: -1px;
  left: 20px;
  background: linear-gradient(135deg, #1d4ed8, #2563eb);
  color: #ffffff;
  padding: 3px 10px;
  border-radius: 0 0 8px 8px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.04em;
  box-shadow: 0 4px 10px rgba(29, 78, 216, 0.25);
}
.brand-avatar {
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  color: #ffffff;
  font-weight: 850;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}
.brand-card .tag {
  background: #f0fdf4;
  color: #15803d;
  font-weight: 700;
  border: 1px solid #bbf7d0;
}
.brand-card.featured .tag {
  background: #eff6ff;
  color: #1d4ed8;
  border-color: #bfdbfe;
}
.price {
  font-family: ui-monospace, SFMono-Regular, monospace;
  font-size: 26px;
  font-weight: 850;
  color: #0f172a;
}
.coupon-chip {
  border: 1px dashed #93c5fd;
  background: #f8faff;
  color: #1d4ed8;
  font-family: ui-monospace, monospace;
  font-weight: 700;
  transition: all 0.2s;
}
.coupon-chip:hover {
  background: #eff6ff;
  border-color: #2563eb;
  transform: translateY(-1px);
}

/* Micro-tags and score track */
.score-track {
  height: 4px;
  background: #f1f5f9;
  border-radius: 99px;
  overflow: hidden;
  margin: 12px 0 10px;
}
.score-track i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, #2563eb, #00f2fe);
  border-radius: 99px;
}
.micro-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.micro-tags span {
  font-size: 11px;
  font-weight: 600;
  color: #475569;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  padding: 3px 8px;
}

/* --------------------------------------------------------------------------
   5. NEW TECH SECTION: 全球专线骨干拓扑与传输协议矩阵
   -------------------------------------------------------------------------- */
.section-tech-architecture {
  padding: 70px 0;
  background: #f8faff;
  border-top: 1px solid #e2e8f0;
  border-bottom: 1px solid #e2e8f0;
}
.arch-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 10px;
}
.arch-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 20px;
  padding: 26px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.04);
  transition: all 0.25s ease;
  position: relative;
}
.arch-card:hover {
  transform: translateY(-3px);
  border-color: #93c5fd;
  box-shadow: 0 18px 40px rgba(37, 99, 235, 0.1);
}
.arch-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 750;
  margin-bottom: 12px;
}
.badge-iepl {
  background: #ecfeff;
  color: #0891b2;
  border: 1px solid #a5f3fc;
}
.badge-iplc {
  background: #eff6ff;
  color: #1d4ed8;
  border: 1px solid #bfdbfe;
}
.badge-bgp {
  background: #f5f3ff;
  color: #6d28d9;
  border: 1px solid #ddd6fe;
}
.badge-proto {
  background: #f0fdf4;
  color: #15803d;
  border: 1px solid #bbf7d0;
}
.arch-card h3 {
  font-size: 20px;
  letter-spacing: -0.03em;
  margin: 0 0 12px;
  color: #0f172a;
}
.arch-flow {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 9px;
  padding: 10px 14px;
  font-family: ui-monospace, monospace;
  font-size: 11px;
  color: #334155;
  margin-bottom: 14px;
}
.flow-arrow {
  font-style: normal;
  color: #2563eb;
  font-weight: 750;
  letter-spacing: -0.05em;
}
.arch-card p {
  font-size: 13px;
  color: #64748b;
  line-height: 1.7;
  margin: 0 0 16px;
}
.arch-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.arch-tags span {
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 6px;
  background: #f1f5f9;
  color: #475569;
  font-weight: 600;
}

/* Protocols Card special */
.arch-card-protocols .proto-list {
  display: grid;
  gap: 10px;
}
.proto-item {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  padding: 10px 12px;
}
.proto-item b {
  display: block;
  font-size: 13px;
  color: #1e293b;
  font-family: ui-monospace, monospace;
}
.proto-item small {
  display: block;
  font-size: 11px;
  color: #64748b;
  margin-top: 3px;
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   6. THREE DECISION PATHWAYS (STORY GRID)
   -------------------------------------------------------------------------- */
.story-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.tech-story-card {
  position: relative;
  overflow: hidden;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 20px;
  padding: 26px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 270px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.04);
  transition: all 0.25s ease;
  text-decoration: none;
}
.tech-story-card:hover {
  transform: translateY(-4px);
  border-color: #93c5fd;
  box-shadow: 0 20px 45px rgba(37, 99, 235, 0.12);
}
.story-corner-code {
  position: absolute;
  top: 18px;
  right: 18px;
  font-family: ui-monospace, monospace;
  font-size: 10px;
  color: #94a3b8;
  font-weight: 750;
  letter-spacing: 0.08em;
}
.tech-story-card small {
  font-size: 12px;
  font-weight: 750;
  color: #2563eb;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
  display: block;
}
.tech-story-card h3 {
  font-size: 22px;
  line-height: 1.25;
  letter-spacing: -0.03em;
  margin: 0 0 10px;
  color: #0f172a;
}
.tech-story-card p {
  font-size: 13px;
  color: #64748b;
  line-height: 1.6;
  margin: 0;
}
.tech-story-card .story-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: #64748b;
  border-top: 1px solid #f1f5f9;
  padding-top: 14px;
  margin-top: 18px;
}
.story-arrow {
  color: #2563eb;
  font-weight: 750;
}
.featured-story {
  border-color: #93c5fd;
  background: linear-gradient(180deg, #ffffff 0%, #f4f8ff 100%);
}

/* --------------------------------------------------------------------------
   7. SMART ROUTE DECISION TERMINAL (DARK LAB 2.0)
   -------------------------------------------------------------------------- */
.tech-terminal-section {
  background: linear-gradient(145deg, #091024 0%, #0f1a3a 60%, #172652 100%);
  color: #ffffff;
  padding: 75px 0;
  position: relative;
  overflow: hidden;
}
.tech-terminal-section::before {
  content: "";
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.22), transparent 70%);
  right: -100px;
  top: -150px;
  pointer-events: none;
}
.tech-eyebrow-dark {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: #7dd3fc;
  font-family: ui-monospace, monospace;
  font-size: 11px;
  font-weight: 750;
  border-radius: 99px;
  letter-spacing: 0.06em;
}
.tech-terminal-section h2 {
  font-size: clamp(30px, 3.8vw, 44px);
  margin: 16px 0 12px;
  letter-spacing: -0.04em;
  color: #ffffff;
}
.tech-terminal-section p {
  color: #94a3b8;
  font-size: 15px;
  line-height: 1.7;
  max-width: 500px;
  margin-bottom: 24px;
}
.match-options-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.match-options-grid .match-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: #cbd5e1;
  padding: 13px 15px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 650;
  cursor: pointer;
  text-align: left;
  transition: all 0.25s ease;
  display: flex;
  align-items: center;
  gap: 8px;
}
.match-options-grid .match-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.3);
  color: #ffffff;
  transform: translateY(-1px);
}
.match-options-grid .match-btn.active {
  background: linear-gradient(135deg, #1d4ed8, #2563eb);
  color: #ffffff;
  border-color: #60a5fa;
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45);
}

/* Terminal Wrapper */
.terminal-wrapper {
  background: #090e1f;
  border: 1px solid rgba(99, 102, 241, 0.35);
  border-radius: 20px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.45);
  overflow: hidden;
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.term-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}
.term-dot.red { background: #ef4444; }
.term-dot.yellow { background: #eab308; }
.term-dot.green { background: #22c55e; }
.term-title {
  margin-left: 8px;
  font-family: ui-monospace, SFMono-Regular, monospace;
  font-size: 11px;
  color: #94a3b8;
  letter-spacing: 0.05em;
}

.terminal-screen {
  padding: 24px;
  color: #f1f5f9;
}
.term-row {
  font-family: ui-monospace, monospace;
  font-size: 11px;
  margin-bottom: 14px;
}
.term-dim { color: #64748b; }
.term-green { color: #10b981; font-weight: 750; }

.term-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.term-badge {
  display: inline-block;
  padding: 3px 8px;
  background: rgba(37, 99, 235, 0.25);
  border: 1px solid rgba(59, 130, 246, 0.4);
  color: #93c5fd;
  border-radius: 6px;
  font-size: 10px;
  font-weight: 750;
  margin-bottom: 6px;
}
.term-brand-name {
  font-size: 24px;
  margin: 0 0 4px;
  color: #ffffff;
  letter-spacing: -0.03em;
}
.term-line-info {
  font-size: 12px;
  color: #94a3b8;
}
.term-pricing {
  text-align: right;
}
.term-price {
  display: block;
  font-family: ui-monospace, monospace;
  font-size: 24px;
  font-weight: 850;
  color: #38bdf8;
}
.term-traffic {
  font-size: 12px;
  color: #94a3b8;
}

.term-metrics-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 10px;
  padding: 10px 12px;
  margin-bottom: 16px;
}
.term-metric-item span {
  display: block;
  font-size: 10px;
  color: #64748b;
}
.term-metric-item b {
  display: block;
  font-family: ui-monospace, monospace;
  font-size: 13px;
  color: #e2e8f0;
  margin-top: 2px;
}

.term-protocols {
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.proto-tag {
  font-size: 10px;
  font-family: ui-monospace, monospace;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 3px 8px;
  border-radius: 5px;
  color: #cbd5e1;
}

.term-note {
  font-size: 12px;
  color: #94a3b8;
  line-height: 1.6;
  margin: 0 0 20px;
}
.term-actions {
  display: flex;
  gap: 10px;
}
.term-actions .btn {
  flex: 1;
}

/* --------------------------------------------------------------------------
   8. BUYER'S BLUEPRINT SHELF
   -------------------------------------------------------------------------- */
.tech-blueprint-shelf {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin: 10px 0 30px;
}
.tech-tile {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 18px;
  padding: 22px;
  min-height: 185px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
  text-decoration: none;
}
.tech-tile::before {
  content: attr(data-no);
  position: absolute;
  right: 14px;
  top: -10px;
  font-size: 68px;
  font-weight: 900;
  color: #f1f5f9;
  font-family: ui-monospace, monospace;
  pointer-events: none;
}
.tech-tile:hover {
  transform: translateY(-3px);
  border-color: #93c5fd;
  box-shadow: 0 16px 36px rgba(37, 99, 235, 0.08);
}
.tile-code {
  font-family: ui-monospace, monospace;
  font-size: 11px;
  font-weight: 750;
  color: #2563eb;
  letter-spacing: 0.05em;
  position: relative;
  z-index: 2;
}
.tech-tile h3 {
  font-size: 16px;
  line-height: 1.35;
  margin: 16px 0 8px;
  color: #0f172a;
  position: relative;
  z-index: 2;
}
.tech-tile p {
  font-size: 12px;
  color: #64748b;
  line-height: 1.6;
  margin: 0;
  position: relative;
  z-index: 2;
}
.tile-link {
  font-size: 11px;
  color: #2563eb;
  font-weight: 750;
  margin-top: 14px;
  display: block;
  position: relative;
  z-index: 2;
}

/* --------------------------------------------------------------------------
   9. CYBER TOAST NOTIFICATION
   -------------------------------------------------------------------------- */
.tech-toast {
  position: fixed;
  top: 25px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  background: #0f172a;
  color: #ffffff;
  border: 1px solid #3b82f6;
  border-radius: 12px;
  padding: 11px 20px;
  font-size: 13px;
  font-weight: 650;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.35), 0 0 20px rgba(59, 130, 246, 0.4);
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.tech-toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}
.toast-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 8px #10b981;
}

/* --------------------------------------------------------------------------
   10. OTHER PAGES COMPATIBILITY
   -------------------------------------------------------------------------- */
.mini-metric {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 15px;
  padding: 18px;
}
.mini-metric small { color: #7a8499; }
.mini-metric b { display: block; font-size: 24px; letter-spacing: -0.04em; margin-top: 5px; }
.metric-bar { height: 5px; background: #edf1f8; border-radius: 99px; margin-top: 13px; overflow: hidden; }
.metric-bar i { display: block; height: 100%; background: linear-gradient(90deg, #3157d5, #7990f1); border-radius: inherit; }
.quick-filter { display: flex; gap: 8px; flex-wrap: wrap; margin: -12px 0 22px; }
.quick-chip { border: 1px solid var(--line); background: #fff; border-radius: 99px; padding: 7px 12px; font-size: 12px; color: #5e6b83; cursor: pointer; }
.quick-chip:hover, .quick-chip.active { color: white; background: #263f91; border-color: #263f91; }
.coupon-how { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 17px; overflow: hidden; margin-bottom: 25px; }
.coupon-step { background: #fff; padding: 20px; }
.coupon-step i { font-style: normal; display: grid; place-items: center; width: 27px; height: 27px; border-radius: 8px; background: #eaf0ff; color: #3157d5; font-weight: 800; font-size: 12px; }
.coupon-step b { display: block; margin: 11px 0 3px; }
.coupon-step span { font-size: 12px; color: #6d7990; }
.fresh-note { display: flex; align-items: center; justify-content: space-between; gap: 25px; background: linear-gradient(105deg, #fff8ea, #fff); border: 1px solid #f0dfb8; border-radius: 17px; padding: 20px 23px; margin-top: 24px; }
.fresh-note p { margin: 0; color: #745b2f; font-size: 13px; }
.fresh-note b { color: #4a3819; }
.topic-nav { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 25px; }
.topic-card { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 17px; }
.topic-card b { display: block; }
.topic-card span { font-size: 11px; color: #7d8799; }
.workflow-band { display: grid; grid-template-columns: repeat(4, 1fr); background: #17254d; color: white; border-radius: 20px; overflow: hidden; margin-bottom: 30px; }
.workflow-step { padding: 24px; border-right: 1px solid rgba(255, 255, 255, 0.1); }
.workflow-step:last-child { border: 0; }
.workflow-step em { font-style: normal; color: #8fa7f7; font-size: 11px; }
.workflow-step b { display: block; margin: 7px 0; }
.workflow-step span { font-size: 12px; color: #b5c0dc; }
.scenario-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 25px; }
.scenario { padding: 21px; border-radius: 16px; border: 1px solid var(--line); background: #fff; }
.scenario:nth-child(2) { background: #172b67; color: white; border-color: #172b67; }
.scenario small { color: #3157d5; font-weight: 750; }
.scenario:nth-child(2) small, .scenario:nth-child(2) p { color: #b8c7ef; }
.scenario h3 { margin: 10px 0 5px; }
.scenario p { font-size: 12px; color: #69768d; margin: 0; }
.scenario .pick { display: flex; justify-content: space-between; align-items: center; margin-top: 17px; padding-top: 13px; border-top: 1px solid rgba(140, 153, 183, 0.23); font-size: 13px; }
.scenario .pick b { font-size: 17px; }

/* --------------------------------------------------------------------------
   RESPONSIVE ADAPTATIONS
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-tech .hero-grid {
    grid-template-columns: 1fr;
    gap: 45px;
  }
  .float-throughput {
    right: 10px;
    top: 20px;
  }
  .tech-metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .arch-grid {
    grid-template-columns: 1fr;
  }
  .tech-blueprint-shelf {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .hero-tech {
    padding: 35px 0 40px;
  }
  .hero-tech h1 {
    font-size: 27px;
    line-height: 1.25;
    word-break: break-word;
  }
  .hero-tech .lead {
    font-size: 14px;
    margin-bottom: 20px;
  }
  .hero-tech .hero-actions {
    flex-direction: column;
    gap: 10px;
  }
  .tech-hud-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px 0;
    padding: 12px 6px;
  }
  .hud-stat-col {
    padding: 0 10px;
  }
  .hud-stat-col:nth-child(2) {
    border-right: none;
  }
  .hud-stat-col:nth-child(3) {
    border-top: 1px solid #e2e8f0;
    padding-top: 10px;
  }
  .hud-stat-col:nth-child(4) {
    border-top: 1px solid #e2e8f0;
    padding-top: 10px;
  }
  .float-throughput {
    display: none;
  }
  .floating-hud-pill {
    display: none;
  }
  .tech-console-card {
    padding: 16px 14px;
    border-radius: 20px;
  }
  .console-hud-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .hud-top-right {
    width: 100%;
    justify-content: flex-start;
    gap: 6px;
  }
  .hud-title {
    font-size: 10px;
  }
  .topology-stage {
    height: 190px;
  }
  .tech-route-deck {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .deck-item {
    padding: 6px 8px;
  }
  .tech-metrics-grid {
    grid-template-columns: 1fr;
  }
  .story-grid {
    grid-template-columns: 1fr;
  }
  .match-options-grid {
    grid-template-columns: 1fr;
  }
  .term-metrics-strip {
    grid-template-columns: repeat(2, 1fr);
  }
  .tech-blueprint-shelf {
    grid-template-columns: 1fr;
  }
  .card-grid {
    grid-template-columns: 1fr;
  }
  .strip-inner {
    font-size: 12px;
  }
}