:root {
  --bg-black: #050508;
  --primary-blue: #3a8cff;
  --primary-cyan: #00f7ff;
  --accent-gold: #ffcc00;
  --accent-pink: #ff4d94;
  --text-gray: #94a3b8;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  background-color: var(--bg-black);
  color: #fff;
  font-family: 'Inter', system-ui, sans-serif;
  overflow-x: hidden;
  text-align: center;
  line-height: 1.4;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
/* 动态背景光 */
.glow-sphere {
  position: fixed;
  top: 50%;
  left: 50%;
  width: 50vw;
  height: 50vw;
  background: radial-gradient(circle, rgba(58, 140, 255, 0.08) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  z-index: -1;
  filter: blur(60px);
  animation: pulseGlow 8s infinite alternate;
}
@keyframes pulseGlow {
  from {
    opacity: 0.3;
  }
  to {
    opacity: 0.6;
    transform: translate(-50%, -50%) scale(1.1);
  }
}
/* 导航 */
.navbar {
  height: 60px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(15px);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.nav-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}
.logo {
  font-size: 20px;
  font-weight: 900;
}
.logo span {
  color: var(--primary-blue);
}
.nav-right {
  display: flex;
  gap: 10px;
}
.nav-right a {
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  padding: 7px 16px;
  border-radius: 6px;
  transition: 0.3s;
}
.btn-login {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.1);
}
.btn-tg-nav {
  background: var(--primary-blue);
  color: #fff;
}
/* 头部展示区 */
.hero-center {
  padding: 30px 0 20px;
}
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 5px 15px;
  border-radius: 50px;
  font-size: 11px;
  color: var(--primary-cyan);
  margin-bottom: 15px;
}
.status-pill span {
  width: 6px;
  height: 6px;
  background: var(--primary-cyan);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--primary-cyan);
}
.status-pill .sep {
  opacity: 0.2;
  margin: 0 5px;
  font-style: normal;
}
.flow-title {
  font-size: clamp(1.8rem, 5vw, 3.2rem);
  line-height: 1.1;
  font-weight: 900;
  margin-bottom: 12px;
}
.flow-title span {
  background: linear-gradient(90deg, #fff, var(--primary-cyan), var(--accent-gold), #fff);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: textFlow 5s linear infinite;
}
@keyframes textFlow {
  to {
    background-position: 200% center;
  }
}
.hero-sub {
  color: var(--text-gray);
  font-size: 0.95rem;
  margin-bottom: 25px;
  max-width: 750px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}
.hero-sub strong {
  color: #fff;
}
/* 按钮悬停动画修复 */
.btn-main-flow {
  display: inline-block;
  text-decoration: none;
  background: #fff;
  color: #000;
  padding: 15px 45px;
  font-weight: 900;
  font-size: 1rem;
  border-radius: 8px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
}
.btn-main-flow:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(255, 255, 255, 0.2), 0 0 15px rgba(58, 140, 255, 0.3);
}
/* 六大特性卡片布局 */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 15px;
  margin-top: 35px;
}
.f-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 22px 12px;
  border-radius: 16px;
  transition: all 0.3s ease;
}
.f-card:hover {
  border-color: var(--primary-blue);
  background: rgba(58, 140, 255, 0.05);
  transform: translateY(-5px);
}
.f-card i {
  font-size: 22px;
  color: var(--primary-blue);
  margin-bottom: 10px;
  display: block;
}
.f-card h3 {
  font-size: 15px;
  margin-bottom: 5px;
  color: #fff;
}
.f-card p {
  color: var(--text-gray);
  font-size: 11px;
}
/* 客群区 - 5列布局 */
.audience-section {
  padding: 40px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}
.section-title {
  margin-bottom: 25px;
}
.section-title h2 {
  font-size: 22px;
}
.section-title h2 span {
  color: var(--primary-cyan);
}
.audience-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}
.a-card {
  background: rgba(255, 255, 255, 0.03);
  padding: 20px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: 0.3s;
  text-align: left;
}
.a-card:hover {
  border-color: var(--primary-blue);
  transform: translateY(-3px);
  background: rgba(255, 255, 255, 0.06);
}
.a-icon {
  width: 40px;
  height: 40px;
  background: rgba(58, 140, 255, 0.1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  font-size: 18px;
  color: var(--primary-blue);
  animation: iconGlow 3s infinite alternate;
}
@keyframes iconGlow {
  from {
    box-shadow: 0 0 5px rgba(58, 140, 255, 0.1);
  }
  to {
    box-shadow: 0 0 15px rgba(58, 140, 255, 0.3);
  }
}
.heart-icon {
  color: var(--accent-pink);
  background: rgba(255, 77, 148, 0.1);
}
.a-card h4 {
  margin-bottom: 8px;
  font-size: 15px;
  color: #fff;
  white-space: nowrap;
}
.a-card p {
  font-size: 11px;
  color: var(--text-gray);
  line-height: 1.5;
}
.a-card-more {
  border-style: dashed;
  opacity: 0.8;
}
/* 底部 */
.footer {
  padding-bottom: 40px;
}
.tg-cta {
  background: linear-gradient(135deg, rgba(58, 140, 255, 0.08) 0%, #000 100%);
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 30px 40px;
  border-radius: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.tg-cta-text {
  text-align: left;
}
.tg-btn-large {
  text-decoration: none;
  background: #24a1de;
  color: #fff;
  padding: 12px 25px;
  border-radius: 8px;
  font-weight: 800;
  transition: 0.3s;
}
.tg-btn-large:hover {
  transform: scale(1.05);
  box-shadow: 0 5px 20px rgba(36, 161, 222, 0.4);
}
.copyright {
  margin-top: 30px;
  font-size: 10px;
  color: #222;
}
/* 响应式适配 */
@media (max-width: 1100px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .audience-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (max-width: 768px) {
  .audience-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .tg-cta {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }
  .tg-cta-text {
    text-align: center;
  }
}