@font-face {
  font-family: "YouSheBiaoTiHei";
  src: url("../fonts/YouSheBiaoTiHei-2.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --primary: #4a7cf7;
  --primary-light: #6b95ff;
  --primary-dark: #3a65d7;
  --secondary: #22d3ee;
  --accent: #8b5cf6;
  --bg-dark: #0f0f1a;
  --bg-darker: #0a0a0f;
  --bg-card: #191e3099;
  --text-primary: #f0f0f5;
  --text-secondary: #a0a0b8;
  --text-muted: #9191b2;
  --border: rgba(255, 255, 255, 0.06);
  --gradient-primary: linear-gradient(135deg,
      #01C0F9 0%,
      #00D4FF 20%,
      #0041C2 50%,
      #3D2EB8 70%,
      #532ECE 100%);
  --gradient-hero: linear-gradient(180deg,
      rgba(10, 10, 15, 0) 0%,
      rgba(10, 10, 15, 0.8) 100%);
  --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px rgba(74, 124, 247, 0.3);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family:
    "Inter",
    "Noto Sans SC",
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
  background: var(--bg-darker);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1rem 0;
  transition:
    padding 0.3s ease,
    background-color 0.3s ease,
    box-shadow 0.3s ease;
  background: transparent;
  backface-visibility: hidden;
  transform: translateZ(0);
}

.navbar::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(1, 192, 249, 0.4), rgba(0, 65, 194, 0.3), rgba(1, 192, 249, 0.4), transparent);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.navbar::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(1, 192, 249, 0.3), rgba(0, 65, 194, 0.2), rgba(1, 192, 249, 0.3), transparent);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.navbar.scrolled {
  background: rgba(10, 14, 28, 0.95);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow:
    0 4px 30px rgba(0, 0, 0, 0.25),
    0 0 40px rgba(1, 192, 249, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  padding: 0.75rem 0;
}

.navbar.scrolled::after {
  opacity: 1;
}

.navbar.scrolled::before {
  opacity: 1;
}

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.nav-logo img {
  height: 40px;
  width: auto;
  filter:
    drop-shadow(0 0 15px rgba(0, 65, 194, 0.4)) drop-shadow(0 0 25px rgba(83, 46, 206, 0.3));
  transition: filter 0.3s ease, transform 0.3s ease;
}

.nav-logo:hover img {
  filter:
    drop-shadow(0 0 25px rgba(0, 65, 194, 0.5)) drop-shadow(0 0 40px rgba(83, 46, 206, 0.4));
  transform: scale(1.02);
}

.nav-menu {
  display: flex;
  gap: 2rem;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.5rem 0;
  position: relative;
  transition: color 0.3s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  background-size: 200% 200%;
  animation: gradient-flow 8s ease infinite;
  box-shadow: 0 0 10px rgba(1, 192, 249, 0.5);
  transition: width 0.35s ease;
  border-radius: 1px;
}

.nav-link::before {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 4px;
  background: radial-gradient(ellipse at center, rgba(1, 192, 249, 0.3) 0%, transparent 70%);
  filter: blur(4px);
  transition: width 0.35s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
  text-shadow: 0 0 10px rgba(1, 192, 249, 0.3);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 80%;
}

.nav-link:hover::before,
.nav-link.active::before {
  width: 100%;
}

.nav-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

.btn-outline {
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(8px);
  box-shadow: 0 0 15px rgba(1, 192, 249, 0.1);
  position: relative;
  overflow: hidden;
}

.btn-outline::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg,
      transparent 0%,
      rgba(1, 192, 249, 0.15) 40%,
      rgba(1, 192, 249, 0.25) 50%,
      rgba(1, 192, 249, 0.15) 60%,
      transparent 100%);
  transition: left 0.8s ease;
}

.btn-outline:hover::before {
  left: 100%;
}

.btn-outline:hover {
  border-color: rgba(1, 192, 249, 0.5);
  background: rgba(1, 192, 249, 0.08);
  transform: translateY(-2px);
  box-shadow:
    0 0 20px rgba(1, 192, 249, 0.3),
    0 0 35px rgba(0, 65, 194, 0.2);
}

.btn-primary {
  background: var(--gradient-primary);
  background-size: 200% 200%;
  color: white;
  animation: gradient-flow 8s ease infinite;
  box-shadow:
    0 0 15px rgba(1, 192, 249, 0.25),
    0 0 30px rgba(0, 65, 194, 0.15),
    0 0 45px rgba(83, 46, 206, 0.1);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg,
      transparent 0%,
      rgba(255, 255, 255, 0.15) 40%,
      rgba(255, 255, 255, 0.25) 50%,
      rgba(255, 255, 255, 0.15) 60%,
      transparent 100%);
  transition: left 0.8s ease;
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg,
      rgba(255, 255, 255, 0.1) 0%,
      transparent 40%,
      transparent 60%,
      rgba(0, 0, 0, 0.1) 100%);
  pointer-events: none;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow:
    0 0 25px rgba(1, 192, 249, 0.4),
    0 0 45px rgba(0, 65, 194, 0.3),
    0 0 65px rgba(83, 46, 206, 0.2);
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1rem;
  border-radius: 12px;
}

.btn-gradient {
  background: var(--gradient-primary);
  color: white;
  position: relative;
  overflow: hidden;
  background-size: 200% 200%;
  animation: gradient-flow 8s ease infinite;
  box-shadow:
    0 0 20px rgba(1, 192, 249, 0.3),
    0 0 40px rgba(0, 65, 194, 0.2),
    0 0 60px rgba(83, 46, 206, 0.1);
}

.btn-gradient::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg,
      transparent 0%,
      rgba(255, 255, 255, 0.2) 40%,
      rgba(255, 255, 255, 0.35) 50%,
      rgba(255, 255, 255, 0.2) 60%,
      transparent 100%);
  transition: left 0.8s ease;
}

.btn-gradient:hover::before {
  left: 100%;
}

.btn-gradient::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg,
      rgba(255, 255, 255, 0.15) 0%,
      transparent 40%,
      transparent 60%,
      rgba(0, 0, 0, 0.1) 100%);
  pointer-events: none;
}

.btn-gradient:hover {
  transform: translateY(-2px);
  box-shadow:
    0 0 30px rgba(1, 192, 249, 0.5),
    0 0 50px rgba(0, 65, 194, 0.3),
    0 0 70px rgba(83, 46, 206, 0.2);
}

@keyframes gradient-flow {

  0%,
  100% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }
}

.btn-glass {
  background: rgba(74, 124, 247, 0.12);
  border: 1px solid rgba(74, 124, 247, 0.25);
  color: #cbd5ff;
  backdrop-filter: blur(8px);
  box-shadow: 0 0 15px rgba(1, 192, 249, 0.1);
  position: relative;
  overflow: hidden;
}

.btn-glass::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg,
      transparent 0%,
      rgba(1, 192, 249, 0.2) 40%,
      rgba(1, 192, 249, 0.35) 50%,
      rgba(1, 192, 249, 0.2) 60%,
      transparent 100%);
  transition: left 0.8s ease;
}

.btn-glass:hover::before {
  left: 100%;
}

.btn-glass:hover {
  background: rgba(1, 192, 249, 0.15);
  border-color: rgba(1, 192, 249, 0.5);
  color: white;
  transform: translateY(-2px);
  box-shadow:
    0 0 20px rgba(1, 192, 249, 0.3),
    0 0 35px rgba(0, 65, 194, 0.2);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  cursor: pointer;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}

.mobile-menu-btn span {
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 999px;
  transition: all 0.3s ease;
}

.mobile-menu-btn:active {
  transform: scale(0.96);
}

.particle-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

#cometCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.bg-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.15;
}

.bg-orb--1 {
  width: 600px;
  height: 600px;
  background: var(--primary);
  top: -200px;
  left: -100px;
  animation: orbFloat1 20s ease-in-out infinite;
}

.bg-orb--2 {
  width: 500px;
  height: 500px;
  background: var(--accent);
  top: 40%;
  right: -150px;
  animation: orbFloat2 25s ease-in-out infinite;
}

.bg-orb--3 {
  width: 400px;
  height: 400px;
  background: var(--secondary);
  bottom: -100px;
  left: 30%;
  animation: orbFloat3 22s ease-in-out infinite;
}

@keyframes orbFloat1 {

  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }

  33% {
    transform: translate(80px, 60px) scale(1.1);
  }

  66% {
    transform: translate(-40px, -30px) scale(0.9);
  }
}

@keyframes orbFloat2 {

  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }

  33% {
    transform: translate(-60px, -40px) scale(1.15);
  }

  66% {
    transform: translate(50px, 30px) scale(0.85);
  }
}

@keyframes orbFloat3 {

  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }

  50% {
    transform: translate(-50px, -50px) scale(1.1);
  }
}

.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  padding: 8rem 0 4rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(74, 124, 247, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(34, 211, 238, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
  z-index: 0;
}

.hero-bg canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-grid {
  display: none;
}

.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-content {
  position: relative;
  z-index: 2;
  animation: fadeInUp 1s ease;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--gradient-primary);
  background-size: 200% 200%;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  animation: gradient-flow 8s ease infinite;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.5;
    transform: scale(1.2);
  }
}

.hero-title {
  margin-bottom: 0.5rem;
  font-weight: 50;
}

.title-line {
  font-family: "YouSheBiaoTiHei", "Noto Sans SC", sans-serif;
  font-size: 4rem;
  line-height: 1.1;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}

.highlight-m {
  color: #fff;
  text-shadow: 0 0 40px rgba(255, 255, 255, 0.3);
}

.highlight-ai {
  background: linear-gradient(90deg, #01C0F9 0%, #00D4FF 40%, #01C0F9 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  padding: 0;
  filter: drop-shadow(0 0 8px rgba(1, 192, 249, 0.6));
  animation: subtle-glow-ai 4s ease-in-out infinite;
  background-size: 200% 100%;
}

.highlight-plat {
  background: linear-gradient(90deg, #0041C2 0%, #3D4BC2 40%, #532ECE 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  padding: 0;
  filter: drop-shadow(0 0 8px rgba(83, 46, 206, 0.6));
  animation: subtle-glow-plat 4s ease-in-out infinite;
  animation-delay: 0.5s;
  background-size: 200% 100%;
}

@keyframes subtle-glow-ai {

  0%,
  100% {
    filter: drop-shadow(0 0 8px rgba(1, 192, 249, 0.6));
    background-position: 0% 50%;
  }

  50% {
    filter: drop-shadow(0 0 12px rgba(1, 192, 249, 0.8));
    background-position: 100% 50%;
  }
}

@keyframes subtle-glow-plat {

  0%,
  100% {
    filter: drop-shadow(0 0 8px rgba(83, 46, 206, 0.6));
    background-position: 0% 50%;
  }

  50% {
    filter: drop-shadow(0 0 12px rgba(83, 46, 206, 0.8));
    background-position: 100% 50%;
  }
}

.title-edition {
  font-size: 0.8em;
  color: #ffffff;
  margin-left: 0.15em;
  letter-spacing: 0.05em;
  vertical-align: middle;
}

.subtitle-text {
  color: var(--text-primary);
  font-weight: 600;
}

.subtitle-cursor {
  display: inline-block;
  width: 2px;
  height: 1.2em;
  background: var(--text-primary);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}

.typing-cursor {
  margin-left: 4px;
}

@keyframes blink {

  0%,
  50% {
    opacity: 1;
  }

  51%,
  100% {
    opacity: 0;
  }
}

.hero-subtitle {
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2rem;
  min-height: 40px;
}

.hero-features {
  display: flex;
  gap: 1.3rem;
  margin-bottom: 1.2rem;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 0.9rem;
}

.feature-icon {
  color: var(--primary-light);
}

.hero-description {
  margin-bottom: 2.5rem;
}

.hero-feature-card {
  position: relative;
  background: linear-gradient(135deg, rgba(74, 124, 247, 0.06) 0%, rgba(139, 92, 246, 0.04) 50%, rgba(34, 211, 238, 0.03) 100%);
  border: 1px solid rgba(74, 124, 247, 0.15);
  border-radius: 16px;
  padding: 20px 24px;
  margin-bottom: 1.8rem;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.hero-feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, #4a7cf7, #8b5cf6, #22d3ee);
  border-radius: 2px 2px 0 0;
}

.hero-feature-card::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(74, 124, 247, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.feature-card-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.feature-card-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--gradient-primary);
  background-size: 200% 200%;
  border-radius: 20px;
  padding: 3px 12px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  white-space: nowrap;
  animation: gradient-flow 8s ease infinite;
}

.feature-card-badge svg {
  color: #f59e0b;
}

.feature-card-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: 0.02em;
  line-height: 1.3;
}

.feature-card-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(74, 124, 247, 0.3), rgba(139, 92, 246, 0.2), rgba(74, 124, 247, 0.3), transparent);
  margin-bottom: 14px;
}

.feature-card-points {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.feature-point {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  color: rgba(240, 240, 245, 0.8);
  line-height: 1.5;
}

.feature-point strong {
  color: #ffffff;
  font-weight: 700;
}

.point-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 7px;
  flex-shrink: 0;
}

.point-icon--stable {
  background: linear-gradient(135deg, rgba(74, 124, 247, 0.2), rgba(74, 124, 247, 0.08));
  color: #4a7cf7;
  border: 1px solid rgba(74, 124, 247, 0.25);
}

.point-icon--flex {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(245, 158, 11, 0.08));
  color: #f59e0b;
  border: 1px solid rgba(245, 158, 11, 0.25);
}

.hero-slogan {
  margin-bottom: 0.8rem;
}

.description-highlight {
  font-size: 1.35rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.4rem;
  line-height: 1.5;
}

.description-highlight-secondary {
  font-size: 1.2rem;
  font-weight: 600;
  background: linear-gradient(135deg, #8b5cf6 0%, #22d3ee 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0;
  line-height: 1.5;
}

.description-main {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.description-sub {
  font-size: 0.95rem;
  color: rgba(240, 240, 245, 0.5);
  letter-spacing: 0.02em;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-visual {
  position: relative;
  z-index: 1;
  height: 600px;
  animation: fadeInUp 1s ease 0.3s both;
  overflow: visible;
}

.orbit-system {
  position: absolute;
  top: 50%;
  left: 55%;
  transform: translate(-50%, -50%);
  width: max(900px, 100vw);
  aspect-ratio: 3 / 2;
  overflow: visible;
}

#orbitCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.8rem;
  animation: bounce 2s infinite;
}

.scroll-arrow {
  width: 20px;
  height: 30px;
  border: 2px solid var(--text-muted);
  border-radius: 10px;
  position: relative;
}

.scroll-arrow::before {
  content: "";
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--primary);
  border-radius: 2px;
  animation: scrollDot 2s infinite;
}

@keyframes bounce {

  0%,
  100% {
    transform: translateX(-50%) translateY(0);
  }

  50% {
    transform: translateX(-50%) translateY(10px);
  }
}

@keyframes scrollDot {
  0% {
    opacity: 1;
    top: 6px;
  }

  100% {
    opacity: 0;
    top: 16px;
  }
}

.products {
  padding: 6rem 0;
  position: relative;
  overflow: hidden;
}

.products-particle-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

#productsParticleCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

.products .container {
  position: relative;
  z-index: 1;
}

.section-header {
  position: relative;
  margin: 0 auto 5rem;
  padding-bottom: 5rem;
}

.product-section-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 3rem;
  align-items: center;
}

.section-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg,
      transparent,
      rgba(74, 124, 247, 0.55),
      rgba(34, 211, 238, 0.35),
      transparent);
}

.section-copy {
  min-width: 0;
}

.section-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.85rem;
  justify-self: end;
  width: 100%;
  padding: 1rem;
  background: linear-gradient(135deg, rgba(19, 24, 42, 0.48), rgba(15, 15, 26, 0.24));
  border: 1px solid rgba(107, 149, 255, 0.11);
  border-radius: 16px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.section-badge {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 38px;
  padding: 0.4rem 0.9rem;
  background: var(--gradient-primary);
  background-size: 200% 200%;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  animation: gradient-flow 8s ease infinite;
}

.section-title {
  font-size: clamp(2.25rem, 4vw, 3.25rem);
  font-weight: 800;
  margin-bottom: 1.1rem;
  background: linear-gradient(135deg, #fff 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title-main,
.section-title-accent {
  display: block;
}

.section-title-main {
  background: linear-gradient(135deg, #fff 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title-accent {
  background: linear-gradient(135deg, #6b95ff 0%, #22d3ee 45%, #a78bfa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 1.1rem;
  max-width: 680px;
  color: var(--text-muted);
  line-height: 1.8;
}

.section-capabilities {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem;
  width: 100%;
}

.section-capabilities a {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0.55rem 0.65rem;
  color: rgba(240, 240, 245, 0.78);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 700;
  white-space: nowrap;
  background: rgba(19, 24, 42, 0.42);
  border: 1px solid rgba(107, 149, 255, 0.12);
  border-radius: 12px;
  transition:
    transform 0.25s ease,
    border-color 0.25s ease,
    background 0.25s ease,
    color 0.25s ease;
}

.section-capabilities a::before {
  content: "";
  width: 5px;
  height: 5px;
  margin-right: 0.5rem;
  border-radius: 50%;
  background: var(--primary-light);
  box-shadow: 0 0 12px rgba(107, 149, 255, 0.8);
}

.section-capabilities a:hover {
  transform: translateY(-2px);
  color: #fff;
  background: rgba(74, 124, 247, 0.14);
  border-color: rgba(34, 211, 238, 0.36);
}

.product-grid {
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

.product-block {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  padding: 3rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 24px;
  transition: all 0.4s ease;
  opacity: 0;
  transform: translateY(30px);
}

.product-block.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.product-block:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
  transform: translateY(-5px);
}

.product-block.reveal.active:hover {
  transform: translateY(-5px);
}

.product-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.product-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.product-block.reverse .product-body .product-video {
  order: 2;
}

.product-block.reverse .product-body .product-content {
  order: 1;
}

.product-video {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: var(--bg-darker);
  border: 1px solid var(--border);
}

.video-expand-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 5;
  pointer-events: none;
}

.product-video:hover .video-expand-btn {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, -50%) scale(1.05);
}

.video-expand-btn:hover {
  background: rgba(0, 0, 0, 0.75);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translate(-50%, -50%) scale(1.12);
}

.video-expand-btn svg {
  width: 24px;
  height: 24px;
}

.product-video video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-placeholder {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg,
      rgba(99, 102, 241, 0.05) 0%,
      rgba(6, 182, 212, 0.05) 100%);
}

.placeholder-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  color: var(--text-muted);
}

.placeholder-icon {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
}

.placeholder-icon svg {
  width: 40px;
  height: 40px;
  color: var(--primary-light);
}

.product-content {
  padding: 1rem 0;
}

.product-badge {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: var(--gradient-primary);
  background-size: 200% 200%;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  animation: gradient-flow 8s ease infinite;
}

.product-title {
  font-size: 1.75rem;
  font-weight: 700;
}

.product-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.product-features li {
  position: relative;
  display: block;
  min-height: 24px;
  padding-left: 2.2rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.check-icon {
  position: absolute;
  top: 0.2rem;
  left: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: 6px;
  color: #22c55e;
  flex-shrink: 0;
}

.feature-highlight {
  padding: 1.25rem;
  background: rgba(99, 102, 241, 0.05);
  border-left: 3px solid var(--primary);
  border-radius: 0 12px 12px 0;
  margin-bottom: 1rem;
}

.feature-highlight h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, #6b95ff 0%, #a78bfa 50%, #4a7cf7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.feature-highlight p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.feature-note {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 1rem;
  border-radius: 10px;
  margin-top: 1rem;
  font-size: 0.9rem;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
  border: 1px solid var(--border);
  color: var(--primary-light);
}

#product-automation .product-features {
  gap: 1.5rem;
}

#product-automation .feature-note {
  padding: 0.95rem 1rem;
  margin-top: 40px;
}

#product-dify .product-features {
  gap: 1.7rem;
}

#product-access .product-features {
  gap: 1.7rem;
}

.feature-note svg {
  flex-shrink: 0;
}

.skill-levels {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 1.1rem 0.25rem;
  margin-bottom: 1.5rem;
}

.skill-level {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.level-badge {
  padding: 0.15rem 0.75rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  text-align: center;
  white-space: nowrap;
}

.level-user {
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: var(--primary-light);
}

.level-dept {
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.3);
  color: var(--secondary);
}

.level-company {
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: #22c55e;
}

.level-official {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: var(--accent);
}

.level-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.highlight-delivery {
  background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 50%, #f59e0b 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 900;
  position: relative;
  display: inline-block;
  padding: 0 0.15em;
  filter: drop-shadow(0 0 8px rgba(245, 158, 11, 0.5));
}

/* 特性条目关键词高亮 - 基础层级 */
.kw {
  color: #fbbf24;
  font-weight: 700;
  font-size: 1.05em;
}

/* 特性条目关键词高亮 - 强调层级（交付核心句） */
.kw-accent {
  background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 40%, #fde68a 70%, #f59e0b 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
  font-size: 1.15em;
  letter-spacing: 0.02em;
}

/* 最后一条交付句的勾选图标变金 */
.product-features li:last-child .check-icon {
  background: rgba(245, 158, 11, 0.15);
  border-color: rgba(245, 158, 11, 0.4);
  color: #f59e0b;
}

.product-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.integration-highlight,
.vision-highlight {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem;
  margin-top: 1.5rem;
  background: linear-gradient(135deg,
      rgba(99, 102, 241, 0.1) 0%,
      rgba(6, 182, 212, 0.1) 100%);
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 500;
}

.integration-highlight svg,
.vision-highlight svg {
  color: var(--primary-light);
  flex-shrink: 0;
}

.cta-section {
  padding: 6rem 0;
  background: radial-gradient(ellipse at center,
      rgba(99, 102, 241, 0.15) 0%,
      transparent 70%);
  position: relative;
}

.cta-content {
  text-align: center;
  margin: 0 auto;
  opacity: 0;
  transform: translateY(30px);
}

.cta-content.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.cta-title {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #fff 0%, var(--primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cta-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
}

.cta-actions {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-white {
  background: white;
  color: var(--bg-dark);
}

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 40px rgba(255, 255, 255, 0.2);
}

.btn-outline-white {
  border: 2px solid rgba(255, 255, 255, 0.3);
  color: white;
  background: transparent;
}

.btn-outline-white:hover {
  border-color: white;
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.footer {
  padding: 4rem 0 2rem;
  background: var(--bg-darker);
  border-top: 1px solid var(--border);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem;
  margin-bottom: 3rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.footer-logo img {
  height: 36px;
  filter:
    drop-shadow(0 0 15px rgba(0, 65, 194, 0.4)) drop-shadow(0 0 25px rgba(83, 46, 206, 0.3));
}

.footer-logo span {
  font-size: 1.25rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-desc {
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.footer-slogan {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.link-group h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.link-group a {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  transition: color 0.3s ease;
}

.link-group span {
  display: block;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.link-group a:hover {
  color: var(--primary-light);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.65rem;
  width: 100%;
  padding-inline: 1rem;
  padding-right: calc(1rem + 52px);
}

.footer-bottom > p {
  margin: 0;
  width: 100%;
}

.footer-records {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  width: 100%;
  max-width: 100%;
}

.footer-records a,
.footer-records span {
  color: var(--text-muted);
  text-decoration: none;
  line-height: 1.5;
  text-align: center;
}

.footer-records .police-record {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  max-width: 100%;
  text-align: center;
}

.footer-records .police-record img {
  width: 16px;
  height: 16px;
  flex: 0 0 16px;
  object-fit: contain;
}

.footer-records a:hover {
  color: var(--primary-light);
}

@media (min-width: 769px) {
  .footer-bottom {
    flex-direction: row;
    gap: 0.5rem 2.7rem;
    padding-inline: 0;
    padding-right: 0;
  }

  .footer-bottom > p {
    width: auto;
  }

  .footer-records {
    flex-direction: row;
    flex-wrap: wrap;
    width: auto;
    gap: 0.5rem 1rem;
  }

  .footer-records .police-record {
    white-space: nowrap;
  }
}

@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-subtitle {
    text-align: left;
  }

  .hero-features {
    justify-content: center;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-visual {
    display: none;
  }

  .product-section-header {
    grid-template-columns: 1fr;
    gap: 1.75rem;
    text-align: left;
  }

  .section-meta {
    justify-self: stretch;
  }

  .product-block {
    gap: 2rem;
    padding: 2rem;
  }

  .product-body {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .product-block.reverse .product-body .product-video,
  .product-block.reverse .product-body .product-content {
    order: unset;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-links {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .navbar {
    padding: 0.75rem 0;
    background: rgba(10, 14, 28, 0.82);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
  }

  .container {
    padding: 0 1.25rem;
  }

  .nav-content {
    gap: 1rem;
  }

  .nav-logo img {
    height: 34px;
  }

  .nav-menu,
  .nav-actions {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .hero {
    min-height: auto;
    padding: 6.5rem 0 4.5rem;
  }

  .hero .container {
    display: block;
  }

  .hero-content {
    text-align: center;
    max-width: 520px;
    margin: 0 auto;
  }

  .hero-title {
    margin-bottom: 0.8rem;
  }

  .title-line {
    font-size: 2.5rem;
    justify-content: center;
    line-height: 1.18;
  }

  .hero-subtitle {
    font-size: 1.25rem;
    min-height: 32px;
    margin-bottom: 1.5rem;
    text-align: center;
    line-height: 1.45;
  }

  .hero-features {
    flex-direction: column;
    gap: 0.7rem;
    margin-bottom: 1rem;
  }

  .feature-item {
    justify-content: center;
    min-height: 48px;
    padding: 0.75rem 0.9rem;
    text-align: center;
  }

  .hero-description {
    margin-bottom: 1.75rem;
  }

  .feature-card-header {
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 0.8rem;
  }

  .feature-card-title {
    max-width: 24rem;
    text-align: center;
  }

  .feature-card-points {
    align-items: flex-start;
    max-width: 220px;
    margin: 0 auto;
  }

  .feature-point {
    justify-content: flex-start;
    text-align: left;
    width: 100%;
  }

  .description-highlight,
  .description-highlight-secondary,
  .description-sub {
    text-align: center;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
    max-width: 360px;
    margin: 0 auto;
  }

  .hero-actions .btn {
    width: 100%;
    min-height: 48px;
    justify-content: center;
    border-radius: 10px;
  }

  .product-section-header {
    text-align: center;
  }

  .section-meta {
    align-items: center;
    justify-self: center;
  }

  .section-title {
    font-size: 2rem;
    line-height: 1.25;
  }

  .section-header {
    margin-bottom: 2.5rem;
    padding-bottom: 1.75rem;
  }

  .section-subtitle {
    margin: 0 auto;
    line-height: 1.75;
  }

  .section-badge {
    align-self: center;
  }

  .section-capabilities {
    max-width: 360px;
    margin: 0 auto;
  }

  .product-grid {
    gap: 2rem;
  }

  .product-block {
    padding: 1.5rem;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  }

  .product-header {
    gap: 0.75rem;
    text-align: center;
  }

  .product-title {
    width: 100%;
    font-size: 1.5rem;
    line-height: 1.25;
  }

  .product-badge {
    padding: 0.35rem 0.75rem;
    font-size: 0.72rem;
  }

  .product-content {
    padding: 0;
  }

  .product-features {
    gap: 0.75rem;
  }

  .product-features li {
    padding-left: 2rem;
    font-size: 0.88rem;
    line-height: 1.65;
    text-align: left;
  }

  .check-icon {
    top: 0.18rem;
    width: 22px;
    height: 22px;
  }

  .kw {
    font-size: 1em;
  }

  .kw-accent {
    font-size: 1.05em;
  }

  .cta-section {
    padding: 4.5rem 0;
  }

  .cta-title {
    font-size: 2rem;
  }

  .cta-subtitle {
    max-width: 22rem;
    margin: 0 auto 2rem;
    line-height: 1.65;
  }

  .cta-actions {
    flex-direction: column;
    max-width: 360px;
    margin: 0 auto;
    gap: 0.85rem;
  }

  .cta-actions .btn {
    width: 100%;
    min-height: 48px;
    justify-content: center;
    border-radius: 10px;
  }

  .footer-records {
    font-size: 0.82rem;
    line-height: 1.45;
  }

  .footer-records .police-record img {
    width: 14px;
    height: 14px;
    flex-basis: 14px;
  }

  .footer {
    padding-bottom: calc(4.25rem + env(safe-area-inset-bottom));
  }

  .footer-links {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.75rem;
    text-align: center;
  }

  .footer-content {
    text-align: center;
  }

  .footer-logo {
    justify-content: center;
  }

  .link-group {
    border-bottom: none;
  }

  .link-group h4 {
    margin-bottom: 0.7rem;
  }

  .link-group a,
  .link-group span {
    margin-bottom: 0.55rem;
  }

  .link-group-links {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    align-items: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }

  .mobile-menu-btn {
    width: 42px;
    height: 42px;
  }

  .hero {
    padding: 6rem 0 4.25rem;
  }

  .title-line {
    font-size: 2.45rem;
  }

  .section-title-main,
  .section-title-accent {
    display: block;
    font-size: 1.55rem;
  }

  .title-edition {
    margin-left: 0.18em;
  }

  .hero-badge {
    margin-bottom: 1rem;
    padding: 0.4rem 0.8rem;
    font-size: 0.78rem;
  }

  .hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 1.2rem;
  }

  .feature-item {
    font-size: 0.86rem;
  }

  .hero-feature-card {
    padding: 1rem;
    margin-bottom: 1.25rem;
    border-radius: 14px;
  }

  .feature-card-header {
    gap: 0.8rem;
    margin-bottom: 0.8rem;
  }

  .feature-card-badge {
    font-size: 0.68rem;
    padding: 0.25rem 0.7rem;
  }

  .feature-card-title {
    font-size: 0.98rem;
    line-height: 1.45;
  }

  .feature-card-divider {
    margin-bottom: 10px;
  }

  .feature-card-points {
    gap: 8px;
    justify-content: flex-start;
    text-align: left;
  }

  .feature-point {
    font-size: 0.86rem;
    gap: 8px;
  }

  .point-icon {
    width: 22px;
    height: 22px;
    border-radius: 6px;
  }

  .description-highlight {
    font-size: 1.08rem;
    line-height: 1.5;
  }

  .description-highlight-secondary {
    font-size: 0.98rem;
    line-height: 1.55;
  }

  .description-sub {
    font-size: 0.88rem;
  }

  .description-main {
    font-size: 0.95rem;
    line-height: 1.7;
  }

  .section-header {
    margin-bottom: 2rem;
    padding-bottom: 1.4rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .section-subtitle {
    font-size: 0.9rem;
  }

  .section-capabilities {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.55rem;
  }

  .section-capabilities a {
    min-height: 40px;
    padding: 0.5rem;
    font-size: 0.78rem;
  }

  .section-capabilities a::before {
    margin-right: 0.35rem;
  }

  .product-block {
    padding: 1.8rem 1.5rem;
    border-radius: 18px;
  }

  .product-body {
    gap: 1.4rem;
  }

  .product-title {
    font-size: 1.3rem;
  }

  .product-badge {
    font-size: 0.7rem;
  }

  .product-features li {
    font-size: 0.86rem;
    line-height: 1.7rem;
  }

  .feature-highlight {
    padding: 1rem;
  }

  .cta-title {
    font-size: 1.8rem;
    line-height: 1.3;
  }

  .cta-subtitle {
    font-size: 0.98rem;
  }

  #product-skill-permission .skill-levels {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  #product-skill-permission .skill-level {
    align-items: center;
    gap: 0.75rem;
  }

  #product-skill-permission .level-badge {
    flex: 0 0 auto;
    min-width: 76px;
  }

  #product-skill-permission .level-desc {
    flex: 1;
    text-align: left;
  }

  .footer-bottom {
    padding-top: 1.5rem;
    font-size: 0.8rem;
    padding-right: calc(1rem + 48px);
  }

  .footer-records {
    font-size: 0.78rem;
  }

  .footer-records .police-record {
    gap: 0.3rem;
  }

}

.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(3, 6, 18, 0.68);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  z-index: 1001;
}

.mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu-panel {
  position: fixed;
  top: max(0.75rem, env(safe-area-inset-top));
  right: 0.75rem;
  width: min(360px, calc(100vw - 1.5rem));
  max-height: calc(100vh - 1.5rem);
  background: linear-gradient(180deg, rgba(18, 24, 42, 0.98) 0%, rgba(9, 12, 24, 0.99) 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 4.75rem 1rem 1rem;
  transform: translateX(calc(100% + 1rem)) scale(0.98);
  transform-origin: top right;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1002;
  overflow-y: auto;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.46), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.mobile-menu-panel.active {
  transform: translateX(0) scale(1);
}

.mobile-menu-close {
  position: absolute;
  top: 0.9rem;
  right: 0.9rem;
  width: 42px;
  height: 42px;
  border: none;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all 0.3s ease;
}

.mobile-menu-close:hover {
  background: rgba(74, 124, 247, 0.18);
  color: var(--text-primary);
}

.mobile-nav-menu {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.mobile-nav-link {
  display: block;
  padding: 0.95rem 1rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.35;
  border-radius: 14px;
  transition: all 0.3s ease;
  border: 1px solid transparent;
  word-break: keep-all;
}

.mobile-nav-link:hover,
.mobile-nav-link:active {
  color: var(--text-primary);
  background: rgba(74, 124, 247, 0.12);
  border-color: rgba(74, 124, 247, 0.18);
}

.mobile-nav-link.active {
  color: #ffffff;
  background: linear-gradient(135deg, rgba(1, 192, 249, 0.2), rgba(83, 46, 206, 0.2));
  border-color: rgba(1, 192, 249, 0.28);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.mobile-nav-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(74, 124, 247, 0.2), transparent);
  margin: 1rem 0;
}

.mobile-nav-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.mobile-nav-actions .btn {
  width: 100%;
  justify-content: center;
  min-height: 46px;
  border-radius: 12px;
  padding: 0.85rem 1rem;
  text-align: center;
}

.mobile-menu-btn.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.mobile-menu-btn.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--gradient-primary);
  background-size: 200% 200%;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease, box-shadow 0.3s ease;
  z-index: 998;
  box-shadow: 0 8px 30px rgba(74, 124, 247, 0.35);
  animation: gradient-flow 8s ease infinite;
}

.back-to-top:hover {
  box-shadow: 0 12px 40px rgba(74, 124, 247, 0.5);
  transform: translateY(-3px);
}

.back-to-top.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top svg {
  width: 24px;
  height: 24px;
}

@media (max-width: 480px) {
  .back-to-top {
    right: 1rem;
    bottom: calc(1rem + env(safe-area-inset-bottom));
    width: 44px;
    height: 44px;
  }

  .back-to-top svg {
    width: 21px;
    height: 21px;
  }
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-darker);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(74, 124, 247, 0.4) 0%, rgba(139, 92, 246, 0.4) 100%);
  border-radius: 4px;
  border: 2px solid var(--bg-darker);
  transition: background 0.3s ease;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, rgba(74, 124, 247, 0.6) 0%, rgba(139, 92, 246, 0.6) 100%);
}

::-webkit-scrollbar-corner {
  background: var(--bg-darker);
}

body {
  scrollbar-width: thin;
  scrollbar-color: rgba(74, 124, 247, 0.4) var(--bg-darker);
}