* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  background: #0a1628;
  color: #e8eef7;
  line-height: 1.6;
}
a { text-decoration: none; color: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ===== 导航栏 ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(10, 22, 40, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(64, 158, 255, 0.2);
}
.nav-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 20px;
  display: flex; align-items: center; justify-content: space-between;
  height: 70px;
}
.logo { font-size: 24px; font-weight: bold; color: #409eff; }
.logo span { color: #67c23a; }
.nav-links { display: flex; gap: 30px; list-style: none; }
.nav-links a {
  font-size: 15px; color: #c0c8d8; transition: color 0.3s;
  position: relative;
}
.nav-links a:hover { color: #409eff; }
.nav-links a::after {
  content: ''; position: absolute; bottom: -5px; left: 0;
  width: 0; height: 2px; background: #409eff; transition: width 0.3s;
}
.nav-links a:hover::after { width: 100%; }
.nav-btn {
  padding: 8px 22px; background: linear-gradient(135deg, #409eff, #1e6fd9);
  border-radius: 4px; font-size: 14px; font-weight: 500;
  transition: transform 0.2s, box-shadow 0.2s;
}
.nav-btn:hover { transform: translateY(-2px); box-shadow: 0 4px 15px rgba(64,158,255,0.4); }

/* ===== Hero区 ===== */
.hero {
  padding: 130px 0 70px;
  background:
    radial-gradient(ellipse at 20% 30%, rgba(64,158,255,0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(103,194,58,0.1) 0%, transparent 50%),
    linear-gradient(180deg, #0a1628 0%, #0d1f38 100%);
  position: relative; overflow: hidden;
}
.hero-grid {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px;
  align-items: center; position: relative; z-index: 1;
}
.hero-tag {
  display: inline-block; padding: 6px 18px;
  background: rgba(64,158,255,0.15); border: 1px solid rgba(64,158,255,0.3);
  border-radius: 20px; font-size: 13px; color: #409eff; margin-bottom: 24px;
}
.hero h1 {
  font-size: 44px; font-weight: bold; margin-bottom: 20px; line-height: 1.3;
  background: linear-gradient(135deg, #fff 30%, #409eff 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p { font-size: 17px; color: #a0aec0; margin-bottom: 32px; line-height: 1.8; }
.hero-buttons { display: flex; gap: 16px; margin-bottom: 50px; }
.btn-primary {
  padding: 14px 36px; background: linear-gradient(135deg, #409eff, #1e6fd9);
  border-radius: 6px; font-size: 16px; font-weight: 500;
  transition: all 0.3s; border: none; cursor: pointer; color: #fff;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(64,158,255,0.4); }
.btn-outline {
  padding: 14px 36px; background: transparent;
  border: 1px solid rgba(64,158,255,0.5); border-radius: 6px;
  font-size: 16px; color: #409eff; cursor: pointer; transition: all 0.3s;
}
.btn-outline:hover { background: rgba(64,158,255,0.1); }
.hero-img-wrap {
  position: relative; text-align: center;
}
.hero-img-wrap img {
  width: 100%; max-width: 460px; border-radius: 16px;
  box-shadow: 0 20px 60px rgba(64,158,255,0.25);
  animation: float 4s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* 数据统计 */
.stats { display: flex; gap: 50px; flex-wrap: wrap; }
.stat-item { text-align: left; }
.stat-num { font-size: 32px; font-weight: bold; color: #409eff; }
.stat-label { font-size: 14px; color: #8895a8; margin-top: 2px; }

/* ===== 通用区块 ===== */
.section { padding: 80px 0; }
.section-title { text-align: center; margin-bottom: 50px; }
.section-title h2 {
  font-size: 36px; font-weight: bold; margin-bottom: 12px;
  background: linear-gradient(135deg, #fff, #409eff);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-title p { font-size: 15px; color: #8895a8; }
.section-title .deco {
  width: 60px; height: 3px; background: linear-gradient(90deg, #409eff, #67c23a);
  margin: 16px auto 0; border-radius: 2px;
}

/* ===== 平台优势 ===== */
.advantages { background: #0d1f38; }
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.adv-card {
  background: linear-gradient(145deg, #132743, #0f1f36);
  border: 1px solid rgba(64,158,255,0.15);
  border-radius: 10px; padding: 32px 24px; text-align: center;
  transition: all 0.3s;
}
.adv-card:hover {
  transform: translateY(-6px);
  border-color: rgba(64,158,255,0.5);
  box-shadow: 0 12px 30px rgba(64,158,255,0.15);
}
.adv-icon {
  width: 60px; height: 60px; margin: 0 auto 20px;
  background: linear-gradient(135deg, rgba(64,158,255,0.2), rgba(103,194,58,0.15));
  border-radius: 12px; display: flex; align-items: center; justify-content: center;
  font-size: 28px;
}
.adv-card h3 { font-size: 18px; margin-bottom: 10px; color: #fff; }
.adv-card p { font-size: 14px; color: #8895a8; line-height: 1.7; }

/* ===== 关于我们 ===== */
.about { background: #0a1628; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.about-img {
  border-radius: 12px; overflow: hidden;
  border: 1px solid rgba(64,158,255,0.2);
  box-shadow: 0 15px 40px rgba(0,0,0,0.3);
}
.about-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.about-text h3 { font-size: 28px; color: #fff; margin-bottom: 20px; }
.about-text > p { font-size: 15px; color: #a0aec0; margin-bottom: 16px; line-height: 1.8; }
.about-features { list-style: none; margin-top: 24px; }
.about-features li {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 0; font-size: 15px; color: #c0c8d8;
}
.about-features li::before {
  content: '✓'; width: 22px; height: 22px;
  background: linear-gradient(135deg, #67c23a, #409eff);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 12px; color: #fff; font-weight: bold; flex-shrink: 0;
}

/* ===== 服务流程 ===== */
.process { background: #0d1f38; }
.process-steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; position: relative; }
.process-steps::before {
  content: ''; position: absolute; top: 35px; left: 10%; right: 10%;
  height: 2px; background: linear-gradient(90deg, #409eff, #67c23a);
  z-index: 0;
}
.step { text-align: center; position: relative; z-index: 1; padding: 0 10px; }
.step-num {
  width: 70px; height: 70px; margin: 0 auto 20px;
  background: linear-gradient(135deg, #132743, #0f1f36);
  border: 2px solid #409eff; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; font-weight: bold; color: #409eff;
  transition: all 0.3s;
}
.step:hover .step-num {
  background: linear-gradient(135deg, #409eff, #1e6fd9);
  color: #fff; transform: scale(1.1);
  box-shadow: 0 0 20px rgba(64,158,255,0.5);
}
.step h4 { font-size: 16px; color: #fff; margin-bottom: 8px; }
.step p { font-size: 13px; color: #8895a8; line-height: 1.6; }

/* ===== 客服展示 ===== */
.service { background: #0a1628; }
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.service-card {
  background: linear-gradient(145deg, #132743, #0f1f36);
  border: 1px solid rgba(64,158,255,0.15);
  border-radius: 12px; padding: 30px 20px; text-align: center;
  transition: all 0.3s;
}
.service-card:hover {
  transform: translateY(-5px);
  border-color: rgba(64,158,255,0.5);
  box-shadow: 0 10px 30px rgba(64,158,255,0.15);
}
.avatar {
  width: 90px; height: 90px; margin: 0 auto 16px;
  border-radius: 50%; border: 3px solid #409eff;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(64,158,255,0.3);
}
.avatar img { width: 100%; height: 100%; object-fit: cover; display: block; }
.service-card h4 { font-size: 17px; color: #fff; margin-bottom: 4px; }
.service-card .role { font-size: 13px; color: #409eff; margin-bottom: 12px; }
.service-card .desc { font-size: 13px; color: #8895a8; margin-bottom: 16px; line-height: 1.6; }
.contact-btn {
  display: inline-block; padding: 8px 20px;
  background: rgba(64,158,255,0.15); border: 1px solid rgba(64,158,255,0.4);
  border-radius: 4px; font-size: 13px; color: #409eff;
  transition: all 0.3s; cursor: pointer;
}
.contact-btn:hover { background: #409eff; color: #fff; }

/* ===== 底部CTA ===== */
.cta {
  padding: 60px 0;
  background: linear-gradient(135deg, rgba(64,158,255,0.15), rgba(103,194,58,0.1));
  border-top: 1px solid rgba(64,158,255,0.2);
  border-bottom: 1px solid rgba(64,158,255,0.2);
  text-align: center;
}
.cta h3 { font-size: 28px; color: #fff; margin-bottom: 12px; }
.cta p { font-size: 15px; color: #a0aec0; margin-bottom: 24px; }

/* ===== 页脚 ===== */
.footer { background: #060d1a; padding: 50px 0 20px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 30px; }
.footer-brand h4 { font-size: 22px; color: #409eff; margin-bottom: 12px; }
.footer-brand p { font-size: 14px; color: #8895a8; line-height: 1.8; margin-bottom: 16px; }
.footer-col h5 { font-size: 16px; color: #fff; margin-bottom: 16px; }
.footer-col ul { list-style: none; }
.footer-col li { padding: 6px 0; }
.footer-col a { font-size: 14px; color: #8895a8; transition: color 0.3s; }
.footer-col a:hover { color: #409eff; }
.footer-bottom {
  border-top: 1px solid rgba(64,158,255,0.1);
  padding-top: 20px; text-align: center;
  font-size: 13px; color: #5a6878;
}

/* ===== 友情链接 ===== */
.flink-wrap {
  margin-top: 24px;
  opacity: 0.6;
}
.flink-toggle {
  cursor: pointer;
  user-select: none;
  font-size: 14px;
  color: #8895a8;
  transition: color 0.3s;
  display: inline-block;
}
.flink-toggle:hover {
  color: #409eff;
}
.flink-box {
  margin-top: 8px;
  font-size: 13px;
  line-height: 2;
  padding: 0;
  list-style: none;
}
.flink-box.hidden {
  display: none !important;
}
.flink-box a {
  color: #8895a8;
  margin-right: 16px;
  transition: color 0.3s;
}
.flink-box a:hover {
  color: #409eff;
}

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero h1 { font-size: 32px; }
  .hero p { font-size: 15px; }
  .hero-buttons { justify-content: center; }
  .stats { justify-content: center; }
  .stat-item { text-align: center; }
  .adv-grid, .service-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: repeat(2, 1fr); gap: 30px; }
  .process-steps::before { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 500px) {
  .adv-grid, .service-grid { grid-template-columns: 1fr; }
  .hero-buttons { flex-direction: column; align-items: center; }
  .section-title h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; }
}