/* ============================
   全局基础样式
   ============================ */

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

body.page-dark {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", sans-serif;
  background:
    /* 科技矩阵线条 */
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255,255,255,0.04) 1px, transparent 1px),

    /* 蓝色光效 */
    radial-gradient(circle at 20% 30%, rgba(59,130,246,0.25), transparent 60%),

    /* 橙色光效 */
    radial-gradient(circle at 80% 70%, rgba(249,115,22,0.25), transparent 60%),

    /* 深色底色 */
    #050814;

  background-size:
    60px 60px,
    60px 60px,
    100% 100%,
    100% 100%,
    auto;

  color: #f5f7ff;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ============================
   头部导航栏
   ============================ */

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 6vw;
  background: rgba(10, 15, 30, 0.75);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  position: sticky;
  top: 0;
  z-index: 20;
}

.logo {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 24px;
}

.phone {
  color: #f97316;
  font-weight: 600;
}

.nav-links a {
  margin-left: 18px;
  color: #e5e7eb;
  text-decoration: none;
  font-size: 14px;
}

.nav-links a:hover,
.nav-links a.active {
  color: #60a5fa;
}

/* ============================
   Hero 区域（大气科技风）
   ============================ */

.hero {
  padding: 120px 6vw 100px;
  position: relative;
  text-align: left;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.55;
  z-index: -1;
}

.hero::before {
  background: rgba(59, 130, 246, 0.45);
  top: -80px;
  left: -40px;
}

.hero::after {
  background: rgba(249, 115, 22, 0.45);
  bottom: -80px;
  right: -40px;
}

.hero h1 {
  font-size: 42px;
  line-height: 1.25;
  margin-bottom: 20px;
  color: #eaf2ff;
  text-shadow:
    0 0 18px rgba(59, 130, 246, 0.55),
    0 0 28px rgba(59, 130, 246, 0.35);
}

.hero-subtitle {
  font-size: 18px;
  color: #dbeafe;
  max-width: 620px;
  margin-bottom: 32px;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: 18px;
  margin-top: 10px;
}

/* ============================
   按钮（发光科技风）
   ============================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 999px;
  font-size: 16px;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.18s ease-out;
}

.btn-primary {
  background: linear-gradient(135deg, #2563eb, #38bdf8);
  color: #f9fafb;
  box-shadow: 0 0 28px rgba(37, 99, 235, 0.7);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 36px rgba(37, 99, 235, 1);
}

.btn-outline {
  background: transparent;
  color: #e5e7eb;
  border-color: rgba(148, 163, 184, 0.8);
}

.btn-outline:hover {
  border-color: #60a5fa;
  color: #bfdbfe;
}
/* ============================
   卡片（玻璃 + 霓虹描边）
   ============================ */

.section-cards .card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
}

.card {
  background: rgba(15, 23, 42, 0.35); /* 半透明玻璃 */
  backdrop-filter: blur(14px) saturate(180%);
  -webkit-backdrop-filter: blur(14px) saturate(180%);

  border-radius: 18px;
  padding: 24px;

  /* 霓虹描边 */
  border: 1px solid rgba(96, 165, 250, 0.45);

  /* 内外发光 */
  box-shadow:
    inset 0 0 18px rgba(59, 130, 246, 0.25),
    0 0 28px rgba(59, 130, 246, 0.35),
    0 12px 32px rgba(0, 0, 0, 0.55);

  transition: all 0.25s ease-out;
}

.card:hover {
  transform: translateY(-6px) scale(1.02);
  border-color: rgba(96, 165, 250, 0.85);

  box-shadow:
    inset 0 0 22px rgba(96, 165, 250, 0.45),
    0 0 36px rgba(96, 165, 250, 0.75),
    0 18px 40px rgba(0, 0, 0, 0.65);
}

.card h3 {
  font-size: 18px;
  margin-bottom: 12px;
  color: #eaf2ff;
  text-shadow: 0 0 12px rgba(96, 165, 250, 0.55);
}

.card p,
.card ul {
  font-size: 15px;
  color: #dbeafe;
  line-height: 1.55;
}

/* ============================
   表格（收费标准）
   ============================ */

.section-table .table-wrapper {
  overflow-x: auto;
  margin-bottom: 24px;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 320px;
  background: rgba(15, 23, 42, 0.7);
  border-radius: 14px;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

thead {
  background: rgba(30, 64, 175, 0.9);
}

th,
td {
  padding: 12px;
  font-size: 14px;
  text-align: left;
}

th {
  color: #e5e7eb;
}

td {
  color: #dbeafe;
}

tbody tr:nth-child(even) {
  background: rgba(15, 23, 42, 0.6);
}

.table-note {
  font-size: 14px;
  color: #f97316;
  margin-bottom: 20px;
}

/* ============================
   CTA 区域
   ============================ */

.section-cta {
  text-align: center;
  padding: 60px 6vw;
}

.section-cta h2 {
  font-size: 24px;
  margin-bottom: 12px;
}

.section-cta p {
  font-size: 15px;
  color: #cbd5f5;
  margin-bottom: 20px;
}

/* ============================
   页脚
   ============================ */

.site-footer {
  padding: 20px 6vw;
  font-size: 13px;
  color: #9ca3af;
  text-align: center;
  border-top: 1px solid rgba(148, 163, 184, 0.3);
  margin-top: 40px;
}

/* ============================
   移动端优化（≤768px）
   ============================ */

@media (max-width: 768px) {

  /* Hero 区域优化 */
  .hero {
    padding: 70px 20px 60px;
    text-align: left;
  }

  .hero h1 {
    font-size: 26px;
    line-height: 1.35;
  }

  .hero-subtitle {
    font-size: 14px;
    margin-bottom: 22px;
  }

  .hero-buttons {
    flex-direction: column;
    gap: 12px;
  }

  .btn {
    width: 100%;
    padding: 12px 0;
    font-size: 15px;
  }

  /* 卡片优化 */
  .section-cards .card-grid {
    grid-template-columns: 1fr;
    gap: 18px;
    padding-inline: 4px;
  }

  .card {
    padding: 18px;
    border-radius: 14px;
    box-shadow:
      inset 0 0 12px rgba(59, 130, 246, 0.25),
      0 0 18px rgba(59, 130, 246, 0.25),
      0 10px 24px rgba(0, 0, 0, 0.45);
  }

  /* 导航栏优化 */
  .nav-links a {
    font-size: 13px;
    margin-left: 10px;
  }

  .phone {
    font-size: 13px;
  }

  /* 表格优化 */
  table {
    font-size: 12px;
  }

  th,
  td {
    padding: 8px;
  }

  /* 背景矩阵优化（降低密度） */
  body.page-dark {
    background-size:
      80px 80px,
      80px 80px,
      100% 100%,
      100% 100%,
      auto;
  }
}