/* ========== Reset & Base ========== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.65;
  color: #1e293b;
  background: #f0f7ff;
  background-image:
    radial-gradient(ellipse at 10% 0%, rgba(96, 165, 250, 0.18), transparent 50%),
    radial-gradient(ellipse at 90% 10%, rgba(14, 165, 233, 0.14), transparent 50%),
    radial-gradient(ellipse at 50% 100%, rgba(59, 130, 246, 0.1), transparent 60%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; transition: color .2s; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; padding: 0; margin: 0; }
img, svg { display: block; max-width: 100%; }

:root {
  --bg-1: #f0f7ff;
  --bg-2: #ffffff;
  --bg-3: #eaf3ff;
  --surface: #ffffff;
  --surface-2: #f8fbff;
  --line: #e2e8f0;
  --line-2: #bfdbfe;
  --line-3: #dbeafe;
  --text: #0f172a;
  --text-2: #475569;
  --text-3: #94a3b8;
  --c1: #3b82f6;
  --c2: #60a5fa;
  --c3: #93c5fd;
  --c4: #06b6d4;
  --c5: #0ea5e9;
  --c6: #2563eb;
  --c7: #1d4ed8;
  --c8: #10b981;
  --c9: #f59e0b;
  --c10: #ef4444;
  --c11: #a855f7;
  --grad-1: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);
  --grad-2: linear-gradient(135deg, #0ea5e9 0%, #06b6d4 100%);
  --grad-3: linear-gradient(135deg, #93c5fd 0%, #3b82f6 100%);
  --grad-soft: linear-gradient(135deg, #dbeafe 0%, #e0f2fe 100%);
  --grad-attack: linear-gradient(90deg, transparent, #f59e0b, #ef4444);
  --radius: 14px;
  --radius-lg: 20px;
  --shadow-card: 0 4px 24px -4px rgba(59, 130, 246, 0.12), 0 2px 6px -2px rgba(15, 23, 42, 0.04);
  --shadow-hover: 0 12px 32px -8px rgba(59, 130, 246, 0.2);
  --shadow-glow: 0 0 30px rgba(59, 130, 246, 0.18);
  --container: 1240px;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ========== 顶部通知条 ========== */
.topbar {
  background: linear-gradient(90deg, rgba(96, 165, 250, 0.16), rgba(59, 130, 246, 0.22), rgba(14, 165, 233, 0.18));
  border-bottom: 1px solid var(--line-3);
  font-size: 13px;
  color: #1e3a8a;
  position: relative;
}
.topbar-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 10px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}
.topbar .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #ef4444;
  box-shadow: 0 0 10px #ef4444;
  animation: pulse 1.6s ease-in-out infinite;
}
.topbar b { color: #dc2626; font-weight: 700; }
.topbar-link { color: #1d4ed8; font-weight: 600; }
.topbar-link:hover { color: #1e3a8a; }
.topbar-text { flex: 1; min-width: 0; }

/* 移动端导航栏内嵌体验按钮 */
.nav-trial-btn {
  display: none;
  align-items: center;
  height: 34px;
  padding: 0 14px;
  border-radius: 9px;
  background: linear-gradient(135deg, #3b82f6, #60a5fa);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
  box-shadow: 0 4px 14px -3px rgba(59, 130, 246, 0.5);
  transition: all .25s;
}
.nav-trial-btn:active {
  transform: scale(0.95);
  box-shadow: 0 2px 8px -2px rgba(59, 130, 246, 0.5);
}

/* 移动面板内新用户推广卡片 */
.mobile-promo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 12px;
  padding: 14px 16px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.08), rgba(96, 165, 250, 0.12));
  border: 1px solid rgba(59, 130, 246, 0.2);
  transition: all .2s;
  opacity: 0;
  transform: translateY(8px);
}
.mobile-panel.show .mobile-promo {
  animation: mnSlideIn .4s cubic-bezier(0.32, 0.72, 0, 1) forwards;
  animation-delay: .02s;
}
.mobile-promo:active {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.14), rgba(96, 165, 250, 0.18));
}
.mp-badge {
  flex-shrink: 0;
  padding: 3px 8px;
  border-radius: 6px;
  background: linear-gradient(135deg, #ef4444, #f59e0b);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.mp-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.mp-price {
  font-size: 14px;
  font-weight: 600;
  color: #1e293b;
}
.mp-price b {
  font-size: 20px;
  color: #dc2626;
  font-weight: 800;
  margin-right: 2px;
}
.mp-note {
  font-size: 11px;
  color: #94a3b8;
  line-height: 1.3;
}
.mp-go {
  flex-shrink: 0;
  padding: 6px 14px;
  border-radius: 8px;
  background: var(--grad-1);
  color: #fff;
  font-size: 12.5px;
  font-weight: 700;
  white-space: nowrap;
}

/* ========== Navbar ========== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid transparent;
  transition: all .3s;
}
.navbar.scrolled {
  background: rgba(255, 255, 255, 0.92);
  border-bottom-color: var(--line);
  box-shadow: 0 2px 20px -8px rgba(59, 130, 246, 0.12);
}
.nav-inner {
  display: flex;
  align-items: center;
  height: 70px;
  gap: 36px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 20px;
  color: #0f172a;
  letter-spacing: 0.5px;
}
.logo-text em { font-style: normal; background: var(--grad-1); -webkit-background-clip: text; background-clip: text; color: transparent; }
.logo-icon { display: inline-flex; filter: drop-shadow(0 0 8px rgba(59, 130, 246, 0.4)); }

.nav-links {
  display: flex;
  gap: 30px;
  margin-left: 20px;
  flex: 1;
}
.nav-links a {
  color: #475569;
  font-size: 14.5px;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 50%; bottom: -2px;
  transform: translateX(-50%) scaleX(0);
  width: 20px; height: 2px;
  background: var(--grad-1);
  border-radius: 2px;
  transition: transform .25s;
}
.nav-links a:hover { color: #1d4ed8; }
.nav-links a:hover::after { transform: translateX(-50%) scaleX(1); }

.nav-cta { display: flex; gap: 12px; align-items: center; }

.btn-ghost, .btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 38px;
  padding: 0 18px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all .25s;
  white-space: nowrap;
}
.btn-ghost {
  background: transparent;
  color: #1e3a8a;
  border: 1px solid var(--line-2);
}
.btn-ghost:hover {
  color: #1d4ed8;
  border-color: var(--c1);
  background: rgba(59, 130, 246, 0.06);
}
.btn-primary {
  background: var(--grad-1);
  color: #fff;
  box-shadow: 0 6px 18px -4px rgba(59, 130, 246, 0.5);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px -4px rgba(59, 130, 246, 0.6);
}
.btn-lg { height: 48px; padding: 0 26px; font-size: 15px; border-radius: 12px; }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  width: 32px; height: 32px;
  padding: 6px;
  justify-content: center;
  align-items: center;
  margin-left: auto;
}
.menu-toggle span {
  display: block;
  width: 20px; height: 2px;
  background: #1e293b;
  border-radius: 2px;
  transition: all .3s ease;
}
.menu-toggle.active span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.menu-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.menu-toggle.active span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* ========== 移动端导航面板 ========== */
.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  top: 60px;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 98;
  opacity: 0;
  visibility: hidden;
  transition: opacity .35s, visibility .35s;
}
.mobile-overlay.show {
  opacity: 1;
  visibility: visible;
}
.mobile-panel {
  display: none;
  position: fixed;
  top: 64px;
  right: 16px;
  width: 320px;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 20px 60px -16px rgba(15, 23, 42, 0.28), 0 8px 24px -8px rgba(59, 130, 246, 0.15);
  z-index: 99;
  transform: translateY(-12px) scale(0.96);
  transform-origin: top right;
  opacity: 0;
  visibility: hidden;
  transition: transform .35s cubic-bezier(0.32, 0.72, 0, 1), opacity .3s, visibility .35s;
  max-height: calc(100vh - 80px);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.mobile-panel.show {
  transform: translateY(0) scale(1);
  opacity: 1;
  visibility: visible;
}
/* 顶部三角指示器 */
.mobile-panel::after {
  content: "";
  position: absolute;
  top: -7px;
  right: 22px;
  width: 14px; height: 14px;
  background: #fff;
  border-radius: 3px 0 0 0;
  transform: rotate(45deg);
  box-shadow: -2px -2px 6px -2px rgba(59, 130, 246, 0.1);
  z-index: -1;
}
/* 顶部渐变装饰条 */
.mobile-panel::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, #3b82f6, #60a5fa, #06b6d4, #3b82f6);
  background-size: 200% 100%;
  animation: gradientSlide 3s linear infinite;
  border-radius: 16px 16px 3px 3px;
}
@keyframes gradientSlide {
  0% { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}
.mp-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px 10px;
}
.mp-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: #94a3b8;
}
.mp-close {
  width: 32px; height: 32px;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: #64748b;
  transition: all .2s;
}
.mp-close:active {
  background: #eff6ff;
  color: #1d4ed8;
  transform: scale(0.92);
}
.mobile-nav {
  display: flex;
  flex-direction: column;
  padding: 0 8px;
}
.mobile-nav a {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border-radius: 12px;
  transition: background .2s;
  position: relative;
  /* 错落入场动画 */
  opacity: 0;
  transform: translateX(24px);
}
.mobile-panel.show .mobile-nav a {
  animation: mnSlideIn .4s cubic-bezier(0.32, 0.72, 0, 1) forwards;
}
.mobile-panel.show .mobile-nav a:nth-child(1) { animation-delay: .05s; }
.mobile-panel.show .mobile-nav a:nth-child(2) { animation-delay: .09s; }
.mobile-panel.show .mobile-nav a:nth-child(3) { animation-delay: .13s; }
.mobile-panel.show .mobile-nav a:nth-child(4) { animation-delay: .17s; }
.mobile-panel.show .mobile-nav a:nth-child(5) { animation-delay: .21s; }
.mobile-panel.show .mobile-nav a:nth-child(6) { animation-delay: .25s; }
@keyframes mnSlideIn {
  to { opacity: 1; transform: translateX(0); }
}
.mobile-nav a:active {
  background: #eff6ff;
}
.mn-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  background: linear-gradient(135deg, #eff6ff, #dbeafe);
  flex-shrink: 0;
  transition: transform .2s;
}
.mobile-nav a:active .mn-icon {
  transform: scale(0.9);
}
.mn-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.mn-name {
  font-size: 15.5px;
  font-weight: 600;
  color: #1e293b;
  line-height: 1.3;
}
.mn-desc {
  font-size: 12px;
  color: #94a3b8;
  line-height: 1.3;
}
.mn-arrow {
  font-size: 22px;
  color: #cbd5e1;
  font-weight: 300;
  flex-shrink: 0;
  transition: transform .2s, color .2s;
}
.mobile-nav a:active .mn-arrow {
  color: #3b82f6;
  transform: translateX(3px);
}
/* 当前活跃段落高亮 */
.mobile-nav a.active {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.08), rgba(96, 165, 250, 0.04));
}
.mobile-nav a.active .mn-icon {
  background: linear-gradient(135deg, #3b82f6, #60a5fa);
  box-shadow: 0 4px 12px -3px rgba(59, 130, 246, 0.4);
}
.mobile-nav a.active .mn-name {
  color: #1d4ed8;
}
.mobile-nav a.active .mn-arrow {
  color: #3b82f6;
}
.mobile-cta {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px 16px 20px;
  margin-top: 6px;
  border-top: 1px solid #f1f5f9;
}
.btn-block {
  width: 100%;
  height: 46px;
  border-radius: 12px;
  font-size: 15px;
}
.mobile-cta .btn-ghost {
  background: #f8fafc;
  border-color: #e2e8f0;
}

/* ========== Hero ========== */
.hero {
  position: relative;
  padding: 80px 0 100px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(96, 165, 250, 0.2), transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(14, 165, 233, 0.16), transparent 50%);
}
.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59, 130, 246, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.05) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(ellipse at center, #000 0%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 0%, transparent 80%);
}
.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  pointer-events: none;
}
.glow-1 {
  width: 500px; height: 500px;
  background: rgba(96, 165, 250, 0.4);
  top: -100px; left: -100px;
  animation: float 12s ease-in-out infinite;
}
.glow-2 {
  width: 400px; height: 400px;
  background: rgba(14, 165, 233, 0.3);
  bottom: -100px; right: -50px;
  animation: float 15s ease-in-out infinite reverse;
}
@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(30px, 40px); }
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid var(--line-2);
  border-radius: 100px;
  font-size: 13px;
  color: #1d4ed8;
  font-weight: 600;
  margin-bottom: 24px;
}
.pulse {
  width: 7px; height: 7px;
  background: #ef4444;
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.6);
  animation: pulse-ring 1.6s infinite;
}
@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.6); }
  70% { box-shadow: 0 0 0 10px rgba(239, 68, 68, 0); }
  100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero-title {
  font-size: clamp(40px, 5.5vw, 64px);
  font-weight: 800;
  line-height: 1.1;
  color: #0f172a;
  margin: 0 0 20px;
  letter-spacing: -0.5px;
}
.grad-text {
  background: linear-gradient(90deg, #1d4ed8 0%, #3b82f6 50%, #0ea5e9 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  position: relative;
}
.hero-sub {
  font-size: 17px;
  color: #475569;
  margin: 0 0 36px;
  line-height: 1.7;
  max-width: 580px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 50px;
  flex-wrap: wrap;
}
.hero-trust {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.trust-item { display: flex; flex-direction: column; }
.trust-item b {
  font-size: 26px;
  font-weight: 800;
  background: var(--grad-1);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.1;
}
.trust-item span {
  font-size: 12.5px;
  color: #64748b;
  margin-top: 4px;
}
.trust-divider {
  width: 1px; height: 36px;
  background: var(--line);
}

/* Hero flat world map background */
.world-map-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
  /* 底部柔光蒙版, 保证下方数字可读 */
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, #000 75%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 0%, #000 75%, transparent 100%);
}
.world-map-svg {
  width: 100%;
  height: 100%;
  display: block;
}
/* GPU 加速 + 渲染隔离, 减少合成层抖动 */
.world-map-svg .map-continents-layer,
.world-map-svg .map-cities-layer {
  transform: translateZ(0);
  pointer-events: none;
}
.world-map-svg .map-attacks-layer,
.world-map-svg .map-bursts-layer {
  transform: translateZ(0);
  will-change: transform, opacity;
  pointer-events: none;
}
/* 城市呼吸灯: CSS 动画替代 SMIL (性能大幅提升) */
.world-map-svg .map-city-glow {
  fill: url(#cityGlow);
  animation: cityGlow 2.4s ease-in-out infinite;
}
@keyframes cityGlow {
  0%, 100% { opacity: 0.7; r: 6; }
  50% { opacity: 0.2; r: 10; }
}
.world-map-svg .map-grid {
  stroke: rgba(59, 130, 246, 0.10);
  stroke-width: 0.5;
}
.world-map-svg .map-country {
  fill: url(#countryGrad);
  stroke: #1d4ed8;
  stroke-width: 0.9;
  stroke-opacity: 0.55;
  stroke-linejoin: round;
  stroke-linecap: round;
  vector-effect: non-scaling-stroke;
}
.world-map-svg .map-country.dim {
  fill: url(#countryGradLight);
  fill-opacity: 0.5;
}
.world-map-svg .map-continent {
  fill: rgba(59, 130, 246, 0.10);
  stroke: rgba(59, 130, 246, 0.25);
  stroke-width: 0.6;
  stroke-linejoin: round;
}
.world-map-svg .map-island {
  fill: rgba(96, 165, 250, 0.32);
  stroke: rgba(29, 78, 216, 0.45);
  stroke-width: 0.5;
  vector-effect: non-scaling-stroke;
}
.world-map-svg .map-city {
  fill: #fb923c;
  stroke: #ea580c;
  stroke-width: 0.8;
  vector-effect: non-scaling-stroke;
}
.world-map-svg .map-attack-line {
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-dasharray: 1200;
  stroke-dashoffset: 1200;
  opacity: 0;
}
.world-map-svg .map-attack-line.flying {
  animation: drawLine 1.4s ease-out forwards;
}
@keyframes drawLine {
  0% { stroke-dashoffset: 1200; opacity: 0; }
  10% { opacity: 0.9; }
  100% { stroke-dashoffset: 0; opacity: 0.85; }
}
.world-map-svg .map-burst {
  fill: none;
  stroke: #fff;
  stroke-width: 2;
  opacity: 0;
  transform-origin: center;
}
.world-map-svg .map-burst.bang {
  animation: burst 0.7s ease-out forwards;
}
@keyframes burst {
  0% { r: 0; opacity: 1; stroke-width: 3; }
  60% { opacity: 0.8; }
  100% { r: 22; opacity: 0; stroke-width: 0.5; }
}
.world-map-svg .map-spark {
  opacity: 0;
}
.world-map-svg .map-spark.go {
  animation: sparkFly 0.8s ease-out forwards;
}
@keyframes sparkFly {
  0% { opacity: 1; r: 2; }
  100% { opacity: 0; r: 0.5; }
}
.map-shield-center {
  filter: drop-shadow(0 0 10px rgba(59, 130, 246, 0.5));
}
.map-shield-center .map-ring-pulse {
  fill: none;
  stroke: #3b82f6;
  stroke-width: 1.5;
  transform-origin: center;
  animation: ringPulse 2.4s ease-out infinite;
}
.map-shield-center .map-ring-pulse-2 {
  animation-delay: 1.2s;
}
@keyframes ringPulse {
  0% { r: 10; opacity: 0.8; }
  100% { r: 40; opacity: 0; }
}

/* Map floating stat cards */
.map-stat {
  position: absolute;
  z-index: 2;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--line-2);
  border-radius: 14px;
  padding: 10px 14px;
  display: flex; align-items: center; gap: 10px;
  box-shadow: 0 8px 24px -8px rgba(59, 130, 246, 0.18);
  animation: floatY 4s ease-in-out infinite;
}
.map-stat .gs-icon {
  width: 32px; height: 32px;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
  background: var(--grad-soft);
  color: #1d4ed8;
}
.map-stat .gs-num {
  font-size: 15px;
  font-weight: 800;
  color: #0f172a;
  line-height: 1.1;
  font-family: 'SF Mono', Menlo, monospace;
}
.map-stat .gs-label {
  font-size: 10px;
  color: #64748b;
  margin-top: 2px;
  letter-spacing: 0.3px;
}
.map-stat-1 { top: 18%; right: 8%; }
.map-stat-2 { bottom: 22%; right: 12%; animation-delay: 0.5s; }
.map-stat-3 { bottom: 12%; left: 8%; animation-delay: 1s; }
.map-stat.gs-warn { border-color: #fecaca; }
.map-stat.gs-warn .gs-icon { background: #fef2f2; color: #dc2626; }
.map-stat.gs-ok { border-color: #bbf7d0; }
.map-stat.gs-ok .gs-icon { background: #f0fdf4; color: #15803d; }

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

/* ========== Logo wall ========== */
.logo-wall {
  padding: 30px 0 50px;
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.6));
  border-top: 1px solid var(--line-3);
  border-bottom: 1px solid var(--line-3);
}
.lw-title {
  text-align: center;
  font-size: 14px;
  color: #64748b;
  margin: 0 0 24px;
  letter-spacing: 1px;
}
.lw-title b { color: #1e3a8a; }
.logo-row {
  display: flex;
  justify-content: space-around;
  align-items: center;
  flex-wrap: wrap;
  gap: 30px;
  opacity: 0.6;
}
.logo-item {
  font-size: 18px;
  font-weight: 700;
  color: #64748b;
  letter-spacing: 1px;
  transition: color .3s;
  cursor: default;
}
.logo-item:hover { color: #1d4ed8; }

/* ========== Section ========== */
.section { padding: 100px 0; position: relative; }
.section-alt { background: linear-gradient(180deg, rgba(255, 255, 255, 0.6), rgba(232, 244, 255, 0.4)); }

.section-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 64px;
}
.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 3px;
  color: #1d4ed8;
  margin-bottom: 16px;
  padding: 4px 12px;
  background: rgba(59, 130, 246, 0.1);
  border-radius: 4px;
}
.section-title {
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 800;
  color: #0f172a;
  margin: 0 0 16px;
  letter-spacing: -0.5px;
  line-height: 1.2;
}
.section-sub {
  font-size: 16px;
  color: #475569;
  margin: 0;
  line-height: 1.7;
}

/* ========== Features ========== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.feature-card {
  position: relative;
  padding: 20px 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: all .3s;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.feature-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--grad-1);
  opacity: 0;
  transition: opacity .3s;
}
.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-2);
  box-shadow: var(--shadow-hover);
}
.feature-card:hover::before { opacity: 1; }

.fc-icon-wrap {
  width: 42px; height: 42px;
  border-radius: 11px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--c1), var(--c2));
  color: #fff;
  margin-bottom: 12px;
  box-shadow: 0 6px 16px -5px rgba(59, 130, 246, 0.5);
  position: relative;
}
.fc-icon-wrap::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 11px;
  background: inherit;
  filter: blur(16px);
  opacity: 0.35;
  z-index: -1;
}

.feature-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: #0f172a;
  margin: 0 0 8px;
}
.feature-card p {
  color: #475569;
  font-size: 13.5px;
  line-height: 1.6;
  margin: 0;
}

/* ========== Scenarios ========== */
.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.scn-card {
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: all .3s;
  box-shadow: var(--shadow-card);
}
.scn-card:hover {
  transform: translateY(-3px);
  border-color: var(--line-2);
  box-shadow: var(--shadow-hover);
}
.scn-icon {
  font-size: 24px;
  margin-bottom: 8px;
  display: inline-block;
}
.scn-card h4 {
  font-size: 16px;
  font-weight: 700;
  color: #0f172a;
  margin: 0 0 6px;
}
.scn-card p {
  color: #475569;
  font-size: 13px;
  line-height: 1.5;
  margin: 0;
}

/* ========== Pricing ========== */
.pricing-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: 0 auto 32px;
  font-size: 14px;
  color: #475569;
}
.note-badge {
  background: var(--grad-1);
  color: #fff;
  padding: 3px 12px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-top: 24px;
}
.price-card {
  position: relative;
  padding: 28px 22px 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  transition: all .3s;
  box-shadow: var(--shadow-card);
}
.price-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-2);
  box-shadow: var(--shadow-hover);
}
.price-card.hot {
  border-color: var(--c1);
  background: linear-gradient(180deg, rgba(219, 234, 254, 0.4), rgba(255, 255, 255, 0.9));
  box-shadow: 0 12px 32px -8px rgba(59, 130, 246, 0.3);
  transform: scale(1.03);
}
.price-card.hot:hover {
  transform: scale(1.03) translateY(-4px);
}
.photon {
  position: absolute;
  top: -12px; left: 50%;
  transform: translateX(-50%);
  background: var(--grad-3);
  color: #fff;
  padding: 4px 14px;
  border-radius: 100px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 12px -2px rgba(245, 158, 11, 0.5);
  white-space: nowrap;
}
.phead { margin-bottom: 16px; }
.pname {
  font-size: 17px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 4px;
}
.ptag {
  font-size: 12px;
  color: #1d4ed8;
  font-weight: 600;
}
.price-card.hot .ptag { color: #d97706; }

.pprice {
  margin-bottom: 6px;
  border-bottom: 1px dashed var(--line);
  padding-bottom: 18px;
}
.pprice-month {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 10px;
}
.pcurr { font-size: 16px; color: #475569; }
.pnum {
  font-size: 36px;
  font-weight: 800;
  color: #0f172a;
  font-family: 'SF Mono', Menlo, monospace;
  letter-spacing: -1px;
  line-height: 1;
}
.price-card.hot .pnum {
  background: var(--grad-1);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.punit { font-size: 13px; color: #64748b; }

.pprice-year {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: rgba(59, 130, 246, 0.06);
  border-radius: 8px;
  font-size: 13px;
}
.py-label {
  color: #64748b;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}
.py-price {
  font-weight: 700;
  color: #1d4ed8;
  font-family: 'SF Mono', Menlo, monospace;
  font-size: 14px;
}
.py-unit {
  font-size: 11px;
  color: #64748b;
  font-weight: 400;
}
.py-save {
  margin-left: auto;
  background: rgba(34, 197, 94, 0.1);
  color: #16a34a;
  padding: 2px 8px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
}

.pdesc {
  font-size: 12.5px;
  color: #64748b;
  margin-bottom: 16px;
  min-height: 32px;
}
.plist {
  flex: 1;
  margin-bottom: 22px;
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.plist li {
  font-size: 13px;
  color: #475569;
  padding-left: 22px;
  position: relative;
  line-height: 1.5;
}
.plist li::before {
  content: "✓";
  position: absolute;
  left: 0; top: 0;
  color: #10b981;
  font-weight: 700;
}
.plist li b { color: #0f172a; font-weight: 600; }
.plist li.ok { color: #1d4ed8; }
.plist li.ok::before { content: "◆"; color: #1d4ed8; font-size: 11px; }

.pbtn {
  display: block;
  width: 100%;
  height: 40px;
  text-align: center;
  line-height: 40px;
  background: transparent;
  color: #1d4ed8;
  border: 1px solid var(--line-2);
  border-radius: 8px;
  font-size: 13.5px;
  font-weight: 600;
  transition: all .25s;
}
.pbtn:hover {
  border-color: var(--c1);
  color: #1d4ed8;
  background: rgba(59, 130, 246, 0.06);
}
.pbtn-primary {
  background: var(--grad-1);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 12px -2px rgba(59, 130, 246, 0.4);
}
.pbtn-primary:hover {
  color: #fff;
  background: var(--grad-1);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px -2px rgba(59, 130, 246, 0.5);
}

.pricing-foot {
  text-align: center;
  margin-top: 50px;
  color: #475569;
  font-size: 14px;
}
.pricing-foot p { margin: 6px 0; }
.pricing-foot b { color: #0f172a; font-weight: 600; }
.pricing-foot a { color: #1d4ed8; font-weight: 600; }
.pricing-foot a:hover { color: #1e3a8a; }

/* ========== Tech / Architecture ========== */
.arch-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}
.arch-layer {
  padding: 20px 18px;
  background: linear-gradient(135deg, rgba(219, 234, 254, 0.6), rgba(224, 242, 254, 0.6));
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  text-align: center;
  transition: all .3s;
  box-shadow: var(--shadow-card);
}
.arch-layer:hover {
  background: linear-gradient(135deg, rgba(191, 219, 254, 0.8), rgba(186, 230, 253, 0.8));
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}
.al-tag {
  display: inline-block;
  padding: 3px 10px;
  background: var(--grad-1);
  color: #fff;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 10px;
}
.al-name {
  font-size: 16px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 6px;
}
.al-desc {
  font-size: 12.5px;
  color: #475569;
  line-height: 1.5;
}

.tech-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 20px 28px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}
.ts-item {
  flex: 1;
  text-align: center;
}
.ts-num {
  display: block;
  font-size: 32px;
  font-weight: 800;
  background: var(--grad-1);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
  margin-bottom: 6px;
}
.ts-num span { font-size: 15px; margin-left: 2px; }
.ts-label {
  font-size: 13px;
  font-weight: 600;
  color: #475569;
}
.ts-sep {
  width: 1px;
  height: 40px;
  background: var(--line);
  margin: 0 8px;
}

/* ========== Steps ========== */
.steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.step {
  flex: 1;
  min-width: 180px;
  max-width: 220px;
  text-align: center;
  padding: 24px 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: all .3s;
  box-shadow: var(--shadow-card);
}
.step:hover {
  border-color: var(--line-2);
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}
.step-num {
  font-size: 36px;
  font-weight: 800;
  background: var(--grad-1);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
  margin-bottom: 12px;
  font-family: 'SF Mono', Menlo, monospace;
}
.step h4 {
  font-size: 16px;
  font-weight: 700;
  color: #0f172a;
  margin: 0 0 6px;
}
.step p {
  font-size: 13px;
  color: #64748b;
  margin: 0;
  line-height: 1.6;
}
.step-arrow {
  color: var(--c1);
  font-size: 22px;
  font-weight: 300;
  opacity: 0.6;
}

/* ========== FAQ ========== */
.faq-list {
  max-width: 880px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.faq-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all .3s;
  box-shadow: var(--shadow-card);
}
.faq-item:hover { border-color: var(--line-2); }
.faq-item summary {
  list-style: none;
  padding: 14px 20px;
  font-size: 14.5px;
  font-weight: 600;
  color: #0f172a;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: color .3s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-size: 20px;
  color: #1d4ed8;
  font-weight: 300;
  transition: transform .3s;
  flex-shrink: 0;
  width: 24px;
  text-align: center;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item summary:hover { color: #1d4ed8; }
.faq-body {
  padding: 0 20px 14px;
  font-size: 13.5px;
  color: #475569;
  line-height: 1.65;
}

/* ========== CTA Section ========== */
.cta-section { padding: 60px 0 100px; }
.cta-card {
  position: relative;
  padding: 70px 60px;
  background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 50%, #0ea5e9 100%);
  border-radius: 24px;
  overflow: hidden;
  text-align: center;
  box-shadow: 0 20px 60px -20px rgba(59, 130, 246, 0.5);
  color: #fff;
}
.cta-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.15), transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(255, 255, 255, 0.1), transparent 50%);
  pointer-events: none;
}
.cta-bg .grid-overlay {
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse at center, #000 0%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 0%, transparent 80%);
}
.cta-content { position: relative; z-index: 1; }
.cta-card h2 {
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 800;
  color: #fff;
  margin: 0 0 14px;
  letter-spacing: -0.5px;
}
.cta-card > .cta-content > p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.9);
  margin: 0 0 32px;
}
.cta-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  margin-bottom: 50px;
  flex-wrap: wrap;
}
.cta-card .btn-ghost {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.4);
}
.cta-card .btn-ghost:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}
.cta-contacts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding-top: 36px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  text-align: left;
}
.cc-item { padding: 0 10px; }
.cc-label {
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 6px;
  letter-spacing: 0.5px;
}
.cc-val {
  font-size: 15.5px;
  font-weight: 600;
  color: #fff;
  font-family: 'SF Mono', Menlo, monospace;
}

/* ========== Footer ========== */
.footer {
  padding: 70px 0 30px;
  background: linear-gradient(180deg, #1e3a8a 0%, #0f172a 100%);
  color: #cbd5e1;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}
.footer-brand .logo { color: #fff; margin-bottom: 18px; }
.fb-desc {
  font-size: 13.5px;
  color: #94a3b8;
  line-height: 1.75;
  margin: 0 0 20px;
  max-width: 320px;
}
.social { display: flex; gap: 12px; }
.social a {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex; align-items: center; justify-content: center;
  color: #cbd5e1;
  transition: all .25s;
}
.social a:hover {
  background: var(--grad-1);
  color: #fff;
  border-color: transparent;
  transform: translateY(-2px);
}
.footer-col h5 {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin: 0 0 18px;
  letter-spacing: 0.5px;
}
.footer-col a {
  display: block;
  font-size: 13.5px;
  color: #94a3b8;
  margin-bottom: 10px;
  transition: color .2s;
}
.footer-col a:hover { color: #60a5fa; }
.footer-bot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 12.5px;
  color: #94a3b8;
  flex-wrap: wrap;
  gap: 12px;
}
.ft-links { display: flex; gap: 10px; }
.ft-links a:hover { color: #60a5fa; }
.ft-links span { color: rgba(148, 163, 184, 0.3); }

/* ========== Back to top ========== */
.back-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--grad-1);
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  box-shadow: 0 6px 20px -4px rgba(59, 130, 246, 0.5);
  display: flex; align-items: center; justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all .3s;
  z-index: 99;
}
.back-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 24px -4px rgba(59, 130, 246, 0.6);
}

/* ========== Reveal Animation ========== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .8s ease, transform .8s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========== Responsive ========== */
@media (max-width: 1100px) {
  .pricing-grid { grid-template-columns: repeat(3, 1fr); }
  .price-card.hot { grid-column: span 1; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .tech-strip { flex-wrap: wrap; gap: 12px 0; }
  .ts-sep { display: none; }
  .ts-item { flex: 1 1 40%; }
  .cta-contacts { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
  .footer-brand { grid-column: span 3; }
}

@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-trial-btn { display: inline-flex; }
  .menu-toggle { display: flex; }
  .mobile-overlay { display: block; }
  .mobile-panel { display: block; }
  .hero { padding: 50px 0 70px; }
  .section { padding: 70px 0; }
  .scenarios-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { gap: 10px; }
  .step-arrow { display: none; }
  .cta-card { padding: 50px 30px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: span 2; }
}

@media (max-width: 640px) {
  .topbar-inner {
    font-size: 11px;
    padding: 6px 14px;
    gap: 6px;
  }
  .topbar-text {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .topbar-link {
    display: inline-flex;
    flex-shrink: 0;
    padding: 3px 10px;
    border-radius: 6px;
    background: rgba(59, 130, 246, 0.12);
    font-size: 11px;
  }
  .container { padding: 0 18px; }
  .nav-inner { height: 56px; gap: 8px; }
  .logo { font-size: 17px; }
  .logo-icon svg { width: 24px; height: 24px; }
  .nav-trial-btn {
    height: 30px;
    padding: 0 12px;
    font-size: 12px;
    border-radius: 8px;
  }
  .menu-toggle { width: 30px; height: 30px; }
  .mobile-panel { top: 56px; right: 10px; left: 10px; width: auto; }
  .mobile-panel::after { right: 18px; }
  .mobile-overlay { top: 56px; }
  .mn-icon { width: 36px; height: 36px; font-size: 16px; }
  .mn-name { font-size: 14.5px; }
  .mn-desc { font-size: 11px; }
  .mobile-nav a { padding: 12px 14px; gap: 12px; }
  .hero { padding: 30px 0 50px; }
  .hero-title { font-size: 34px; }
  .hero-sub { font-size: 15px; }
  .hero-sub br { display: none; }
  .hero-trust { gap: 14px; }
  .trust-item b { font-size: 20px; }
  .trust-divider { display: none; }
  .map-stat { padding: 7px 10px; gap: 8px; }
  .map-stat .gs-icon { width: 26px; height: 26px; font-size: 13px; }
  .map-stat .gs-num { font-size: 12px; }
  .map-stat .gs-label { font-size: 9px; }
  .map-stat-1 { top: 12%; right: 5%; }
  .map-stat-2 { bottom: 18%; right: 5%; }
  .map-stat-3 { bottom: 8%; left: 5%; }
  .section-head { margin-bottom: 40px; }
  .section-title { font-size: 26px; }
  .features-grid, .scenarios-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; gap: 14px; }
  .price-card.hot { transform: none; }
  .price-card.hot:hover { transform: translateY(-3px); }
  .arch-grid { grid-template-columns: 1fr 1fr; }
  .tech-strip { flex-direction: column; gap: 14px; }
  .ts-sep { display: none; }
  .ts-item { flex: 1; }
  .cta-card { padding: 36px 22px; }
  .cta-contacts { grid-template-columns: 1fr; gap: 14px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
  .footer-brand { grid-column: span 2; }
  .footer-bot { flex-direction: column; text-align: center; }
  .back-top { bottom: 20px; right: 20px; width: 40px; height: 40px; }
}