/* ==========================================================================
   VCD7 PC Official Client Landing Page - Scheme 3: Tokyo Kabukicho Midnight Neon
   午夜歌舞伎町 · 魅惑流光全景风情专属样式表
   ========================================================================== */

.vcd-neon-app-page {
  background: #06060a;
  color: #f3f4f6;
  min-height: calc(100vh - 80px);
  position: relative;
  overflow-x: hidden;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* --------------------------------------------------------------------------
   1. Tokyo Kabukicho Midnight Neon Hero Stage
   -------------------------------------------------------------------------- */
.vcd-neon-hero {
  position: relative;
  padding: 64px 0 84px;
  background: 
    radial-gradient(ellipse 700px 520px at 80% 35%, rgba(225, 29, 72, 0.28) 0%, transparent 70%),
    radial-gradient(ellipse 550px 420px at 20% 20%, rgba(223, 196, 127, 0.12) 0%, transparent 65%),
    radial-gradient(circle 400px at 50% 90%, rgba(168, 85, 247, 0.12) 0%, transparent 60%),
    linear-gradient(180deg, #09090f 0%, #06060a 100%);
  border-bottom: 1px solid rgba(244, 63, 94, 0.14);
  overflow: hidden;
}

.vcd-neon-curtain-glow {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(223, 196, 127, 0.6), rgba(244, 63, 94, 0.8), rgba(168, 85, 247, 0.5), transparent);
  pointer-events: none;
}

.vcd-neon-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
  gap: 52px;
  align-items: center;
  position: relative;
  z-index: 2;
}

/* Left Column: Intro & Download Cockpit */
.vcd-neon-intro {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.vcd-neon-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  align-self: flex-start;
  padding: 7px 18px;
  border-radius: 999px;
  background: rgba(244, 63, 94, 0.12);
  border: 1px solid rgba(244, 63, 94, 0.35);
  box-shadow: 0 0 16px rgba(244, 63, 94, 0.2);
  color: #fda4af;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.vcd-neon-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #f43f5e;
  box-shadow: 0 0 8px #f43f5e, 0 0 16px #f43f5e;
  animation: vcdNeonPulse 2s ease-in-out infinite;
}

@keyframes vcdNeonPulse {
  0%, 100% { transform: scale(1); opacity: 1; box-shadow: 0 0 8px #f43f5e; }
  50% { transform: scale(1.3); opacity: 0.75; box-shadow: 0 0 16px #fb7185, 0 0 24px #e11d48; }
}

.vcd-neon-headline {
  margin: 0;
  font-size: clamp(34px, 3.8vw, 54px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: #ffffff;
}

.vcd-neon-gradient-text {
  background: linear-gradient(135deg, #ffffff 0%, #ffe4e6 20%, #f43f5e 60%, #dfc47f 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  text-shadow: 0 4px 35px rgba(244, 63, 94, 0.35);
}

.vcd-neon-lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: #a1a1aa;
  max-width: 580px;
}

/* Neon Chips */
.vcd-neon-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.vcd-neon-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 14px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(244, 63, 94, 0.22);
  color: #e4e4e7;
  font-size: 12.5px;
  font-weight: 500;
  transition: all 0.25s ease;
}

.vcd-neon-chip:hover {
  background: rgba(244, 63, 94, 0.12);
  border-color: rgba(244, 63, 94, 0.5);
  transform: translateY(-1px);
  color: #ffffff;
}

.vcd-neon-chip svg {
  color: #fb7185;
  flex-shrink: 0;
}

/* Download Console Cockpit */
.vcd-neon-download-console {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 28px;
  align-items: center;
  padding: 24px;
  border-radius: 20px;
  background: linear-gradient(145deg, rgba(22, 22, 34, 0.95), rgba(12, 12, 19, 0.98));
  border: 1px solid rgba(244, 63, 94, 0.28);
  box-shadow: 
    0 24px 56px rgba(0, 0, 0, 0.7),
    0 0 32px rgba(225, 29, 72, 0.14),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  position: relative;
  backdrop-filter: blur(16px);
}

/* QR Card */
.vcd-neon-qr-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.vcd-neon-qr-lens {
  position: relative;
  padding: 10px;
  border-radius: 14px;
  background: #ffffff;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), 0 0 20px rgba(244, 63, 94, 0.25);
}

.vcd-neon-qr-img {
  display: block;
  width: 142px;
  height: 142px;
  border-radius: 6px;
}

.vcd-neon-corner {
  position: absolute;
  width: 10px;
  height: 10px;
  border-color: #f43f5e;
  border-style: solid;
  pointer-events: none;
}

.vcd-corner-tl { top: 4px; left: 4px; border-width: 2.5px 0 0 2.5px; }
.vcd-corner-tr { top: 4px; right: 4px; border-width: 2.5px 2.5px 0 0; }
.vcd-corner-bl { bottom: 4px; left: 4px; border-width: 0 0 2.5px 2.5px; }
.vcd-corner-br { bottom: 4px; right: 4px; border-width: 0 2.5px 2.5px 0; }

.vcd-neon-qr-tag {
  position: absolute;
  bottom: -6px;
  right: -6px;
  padding: 2px 7px;
  border-radius: 6px;
  background: linear-gradient(135deg, #e11d48, #d97706);
  color: #ffffff;
  font-size: 10px;
  font-weight: 800;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.4);
}

.vcd-neon-qr-caption {
  text-align: center;
}

.vcd-neon-qr-title {
  display: block;
  font-size: 12.5px;
  font-weight: 700;
  color: #f43f5e;
  letter-spacing: 0.05em;
}

.vcd-neon-qr-sub {
  display: block;
  font-size: 11px;
  color: #71717a;
  margin-top: 2px;
}

/* CTA Buttons */
.vcd-neon-cta-group {
  display: flex;
  flex-direction: column;
  gap: 13px;
  justify-content: center;
}

.vcd-neon-btn {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 14px 20px;
  border-radius: 14px;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  text-align: left;
  border: none;
  font-family: inherit;
  box-sizing: border-box;
  width: 100%;
}

/* Master Android Button (Rose to Gold) */
.vcd-btn-neon-android {
  background: linear-gradient(135deg, #f43f5e 0%, #e11d48 45%, #c2410c 100%);
  color: #ffffff;
  box-shadow: 
    0 10px 28px rgba(225, 29, 72, 0.45),
    0 0 0 1px rgba(255, 255, 255, 0.2) inset;
}

.vcd-btn-neon-android:hover {
  transform: translateY(-2px);
  background: linear-gradient(135deg, #fb7185 0%, #f43f5e 45%, #ea580c 100%);
  box-shadow: 
    0 16px 38px rgba(225, 29, 72, 0.65),
    0 0 24px rgba(251, 113, 133, 0.4),
    0 0 0 1px rgba(255, 255, 255, 0.3) inset;
  color: #ffffff;
}

.vcd-btn-neon-android .vcd-neon-btn-icon {
  width: 44px;
  height: 44px;
  border-radius: 11px;
  background: rgba(0, 0, 0, 0.22);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.15);
}

.vcd-btn-neon-android .vcd-neon-btn-title {
  display: block;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: #ffffff;
}

.vcd-btn-neon-android .vcd-neon-btn-caption {
  display: block;
  font-size: 11.5px;
  color: #ffe4e6;
  margin-top: 2px;
  opacity: 0.92;
}

.vcd-btn-neon-android .vcd-neon-btn-arrow {
  color: #ffffff;
  opacity: 0.85;
  transition: transform 0.25s ease;
}

.vcd-btn-neon-android:hover .vcd-neon-btn-arrow {
  transform: translate(3px, -3px);
  opacity: 1;
}

/* Secondary iOS Button (Champagne Gold / Midnight Glass) */
.vcd-btn-neon-ios {
  background: rgba(255, 255, 255, 0.04);
  color: #f3f4f6;
  border: 1px solid rgba(223, 196, 127, 0.35);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.vcd-btn-neon-ios:hover {
  background: rgba(223, 196, 127, 0.08);
  border-color: rgba(223, 196, 127, 0.7);
  box-shadow: 0 8px 24px rgba(223, 196, 127, 0.22);
  transform: translateY(-2px);
  color: #ffffff;
}

.vcd-btn-neon-ios .vcd-neon-btn-icon {
  width: 44px;
  height: 44px;
  border-radius: 11px;
  background: rgba(223, 196, 127, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #dfc47f;
}

.vcd-btn-neon-ios .vcd-neon-btn-title {
  display: block;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #ffffff;
}

.vcd-btn-neon-ios .vcd-neon-btn-caption {
  display: block;
  font-size: 11.5px;
  color: #a1a1aa;
  margin-top: 2px;
}

.vcd-btn-neon-ios .vcd-neon-btn-arrow {
  color: #dfc47f;
  transition: transform 0.25s ease;
}

.vcd-btn-neon-ios:hover .vcd-neon-btn-arrow {
  transform: translateY(3px);
}

/* Auxiliary Row */
.vcd-neon-aux-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 4px;
}

.vcd-neon-aux-action {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  color: #a1a1aa;
  font-size: 12px;
  cursor: pointer;
  padding: 0;
  text-decoration: none;
  transition: color 0.2s ease;
  font-family: inherit;
}

.vcd-neon-aux-action:hover {
  color: #fda4af;
}

.vcd-neon-aux-dot {
  color: #52525b;
  font-size: 13px;
}

/* Right Column: Tokyo Kabukicho Goddess Showcase */
.vcd-neon-showcase-col {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.vcd-neon-showcase-stage {
  position: relative;
  width: 100%;
  max-width: 520px;
}

.vcd-neon-ambient-glow {
  position: absolute;
  inset: -25px;
  background: radial-gradient(circle, rgba(244, 63, 94, 0.35) 0%, rgba(225, 29, 72, 0.15) 50%, transparent 75%);
  filter: blur(40px);
  z-index: 1;
  pointer-events: none;
  animation: vcdAmbientBreathe 4s ease-in-out infinite alternate;
}

@keyframes vcdAmbientBreathe {
  0% { transform: scale(0.96); opacity: 0.7; }
  100% { transform: scale(1.04); opacity: 1; }
}

.vcd-neon-showcase-img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 22px;
  position: relative;
  z-index: 2;
  border: 1px solid rgba(244, 63, 94, 0.35);
  box-shadow: 
    0 25px 60px rgba(0, 0, 0, 0.8),
    0 0 35px rgba(225, 29, 72, 0.22);
}

/* Floating Badges */
.vcd-neon-float-badge {
  position: absolute;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(15, 15, 24, 0.88);
  border: 1px solid rgba(244, 63, 94, 0.4);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.6), 0 0 16px rgba(244, 63, 94, 0.25);
  backdrop-filter: blur(12px);
  font-size: 12px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.vcd-float-badge-top {
  top: 18px;
  left: -16px;
  animation: vcdFloatA 4.5s ease-in-out infinite alternate;
}

.vcd-float-badge-bottom {
  bottom: 24px;
  right: -14px;
  animation: vcdFloatB 5s ease-in-out infinite alternate;
}

.vcd-float-badge-bottom svg {
  color: #f43f5e;
}

.vcd-neon-pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #f43f5e;
  box-shadow: 0 0 8px #f43f5e;
  animation: vcdNeonPulse 1.6s infinite;
}

@keyframes vcdFloatA {
  0% { transform: translateY(0); }
  100% { transform: translateY(-8px); }
}

@keyframes vcdFloatB {
  0% { transform: translateY(0); }
  100% { transform: translateY(8px); }
}

/* --------------------------------------------------------------------------
   2. Four Neon Feature Cards
   -------------------------------------------------------------------------- */
.vcd-neon-cards-section {
  padding: 72px 0 64px;
  background: 
    radial-gradient(ellipse 800px 300px at 50% 0%, rgba(225, 29, 72, 0.1) 0%, transparent 70%),
    #06060a;
  position: relative;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.vcd-neon-section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px;
}

.vcd-neon-kicker {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 800;
  letter-spacing: 0.18em;
  color: #dfc47f;
  margin-bottom: 10px;
  text-transform: uppercase;
}

.vcd-neon-section-title {
  margin: 0 0 12px;
  font-size: clamp(26px, 2.6vw, 36px);
  font-weight: 800;
  color: #ffffff;
  letter-spacing: 0.02em;
}

.vcd-neon-section-sub {
  margin: 0;
  font-size: 14.5px;
  color: #a1a1aa;
  line-height: 1.7;
}

.vcd-neon-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
}

.vcd-neon-card {
  position: relative;
  border-radius: 18px;
  padding: 28px 22px 24px;
  background: linear-gradient(180deg, rgba(22, 22, 34, 0.7) 0%, rgba(13, 13, 20, 0.85) 100%);
  border: 1px solid rgba(255, 255, 255, 0.07);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
  display: flex;
  flex-direction: column;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

.vcd-neon-card:hover {
  transform: translateY(-5px);
  border-color: rgba(244, 63, 94, 0.45);
  box-shadow: 
    0 18px 40px rgba(0, 0, 0, 0.6),
    0 0 24px rgba(225, 29, 72, 0.18);
}

.vcd-neon-card-glow {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(244, 63, 94, 0.6), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.vcd-neon-card:hover .vcd-neon-card-glow {
  opacity: 1;
}

.vcd-neon-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(244, 63, 94, 0.18), rgba(223, 196, 127, 0.12));
  border: 1px solid rgba(244, 63, 94, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fb7185;
  margin-bottom: 20px;
}

.vcd-neon-card-body h3 {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.02em;
}

.vcd-neon-card-body p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: #a1a1aa;
}

.vcd-neon-card-tag {
  margin-top: auto;
  padding-top: 18px;
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: #dfc47f;
  text-transform: uppercase;
  opacity: 0.85;
}

/* --------------------------------------------------------------------------
   3. Tabbed Installation Guide
   -------------------------------------------------------------------------- */
.vcd-neon-guide-section {
  padding: 68px 0 80px;
  background: #06060a;
  position: relative;
}

.vcd-neon-guide-box {
  background: linear-gradient(180deg, rgba(18, 18, 28, 0.85) 0%, rgba(10, 10, 16, 0.95) 100%);
  border: 1px solid rgba(244, 63, 94, 0.22);
  border-radius: 24px;
  padding: 40px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.vcd-neon-guide-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  margin-bottom: 32px;
}

.vcd-neon-guide-title {
  margin: 0 0 8px;
  font-size: clamp(24px, 2.2vw, 32px);
  font-weight: 800;
  color: #ffffff;
}

.vcd-neon-guide-sub {
  margin: 0;
  font-size: 14px;
  color: #a1a1aa;
}

/* Platform Tabs */
.vcd-neon-tabs {
  display: inline-flex;
  padding: 5px;
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.08);
  gap: 6px;
}

.vcd-neon-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 9px;
  background: transparent;
  border: none;
  color: #a1a1aa;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.22s ease;
  font-family: inherit;
}

.vcd-neon-tab-btn:hover {
  color: #ffffff;
}

.vcd-neon-tab-btn.active {
  background: linear-gradient(135deg, #e11d48, #be123c);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(225, 29, 72, 0.45);
}

/* Steps Grid */
.vcd-neon-steps {
  display: none;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.vcd-neon-steps.active {
  display: grid;
}

.vcd-neon-step-card {
  border-radius: 16px;
  padding: 26px 22px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: all 0.25s ease;
}

.vcd-neon-step-card:hover {
  background: rgba(244, 63, 94, 0.04);
  border-color: rgba(244, 63, 94, 0.3);
  transform: translateY(-3px);
}

.vcd-neon-step-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.vcd-neon-step-num {
  font-size: 26px;
  font-weight: 900;
  background: linear-gradient(135deg, #f43f5e, #dfc47f);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
}

.vcd-neon-step-pill {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(244, 63, 94, 0.12);
  color: #fda4af;
  border: 1px solid rgba(244, 63, 94, 0.25);
}

.vcd-neon-step-card h4 {
  margin: 0 0 10px;
  font-size: 16px;
  font-weight: 700;
  color: #ffffff;
}

.vcd-neon-step-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: #a1a1aa;
}

.vcd-neon-step-card b {
  color: #fb7185;
}

.vcd-neon-step-card code {
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.08);
  color: #dfc47f;
  font-size: 12px;
}

/* Trust & Audit Bar */
.vcd-neon-audit-bar {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: space-around;
  gap: 16px;
  flex-wrap: wrap;
}

.vcd-neon-audit-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: #a1a1aa;
  letter-spacing: 0.03em;
}

.vcd-neon-audit-item svg {
  color: #dfc47f;
}

/* Toast Message */
.vcd-toast-msg {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: rgba(18, 18, 28, 0.95);
  border: 1px solid rgba(244, 63, 94, 0.5);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7), 0 0 20px rgba(244, 63, 94, 0.3);
  color: #ffffff;
  padding: 10px 22px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  z-index: 99999;
  opacity: 0;
  pointer-events: none;
  transition: all 0.25s ease;
  backdrop-filter: blur(10px);
}

.vcd-toast-msg.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* --------------------------------------------------------------------------
   Responsive Adaptations
   -------------------------------------------------------------------------- */
@media (max-width: 1200px) {
  .vcd-neon-hero-grid {
    grid-template-columns: 1fr;
    gap: 44px;
  }
  .vcd-neon-showcase-col {
    order: -1;
  }
  .vcd-neon-showcase-stage {
    max-width: 460px;
  }
  .vcd-neon-cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .vcd-neon-hero {
    padding: 36px 0 52px;
  }
  .vcd-neon-download-console {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 20px;
  }
  .vcd-neon-cards-grid {
    grid-template-columns: 1fr;
  }
  .vcd-neon-guide-box {
    padding: 24px;
  }
  .vcd-neon-steps {
    grid-template-columns: 1fr;
  }
  .vcd-neon-audit-bar {
    justify-content: flex-start;
    gap: 12px;
  }
  .vcd-float-badge-top {
    left: 10px;
    top: 10px;
  }
  .vcd-float-badge-bottom {
    right: 10px;
    bottom: 10px;
  }
}