/* 麦卡选号 - 高端共享样式 V2 */
:root {
  --primary: #FF6B00;
  --primary-light: #FFF3E6;
  --primary-dark: #CC5500;
  --bg: #FAFBFC;
  --white: #FFFFFF;
  --text: #1A1A2E;
  --text-secondary: #555770;
  --border: #E8E8F0;
  --shadow: 0 2px 16px rgba(0,0,0,0.06);
  --shadow-hover: 0 8px 32px rgba(0,0,0,0.12);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Noto Sans SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ========== Header ========== */
.header {
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: var(--transition);
}
.header.scrolled {
  box-shadow: 0 2px 20px rgba(0,0,0,0.08);
}
.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  font-size: 26px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}
.nav { display: flex; gap: 8px; }
.nav a {
  font-size: 15px;
  font-weight: 500;
  padding: 8px 18px;
  border-radius: 8px;
  transition: var(--transition);
  color: var(--text-secondary);
}
.nav a:hover {
  background: var(--primary-light);
  color: var(--primary);
}
.nav a.active {
  background: #f0f0f0;
  color: #111;
  font-weight: 600;
}
.header-phone {
  font-size: 14px;
  color: var(--text-secondary);
  background: var(--bg);
  padding: 8px 18px;
  border-radius: 20px;
  font-weight: 500;
}
.header-phone strong {
  color: var(--primary);
  font-size: 15px;
  margin-left: 4px;
}

/* Mobile menu */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text);
}
@media (max-width: 768px) {
  .nav { display: none; }
  .nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0; right: 0;
    background: white;
    padding: 16px;
    box-shadow: var(--shadow);
    border-radius: 0 0 var(--radius) var(--radius);
  }
  .menu-toggle { display: block; }
  .header-phone { display: none; }
}

/* ========== Hero ========== */
.hero {
  background: linear-gradient(160deg, var(--primary) 0%, #FF8C38 50%, var(--primary-dark) 100%);
  color: white;
  padding: 120px 0 100px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
  animation: heroFloat 8s ease-in-out infinite;
}
@keyframes heroFloat {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(30px, -30px); }
}
.hero h1 {
  font-size: 56px;
  font-weight: 900;
  margin-bottom: 20px;
  position: relative;
  letter-spacing: -1px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.15);
}
.hero p {
  font-size: 22px;
  opacity: 0.95;
  margin-bottom: 40px;
  position: relative;
  font-weight: 400;
}
.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  position: relative;
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 36px;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  letter-spacing: 0.3px;
}
.btn-primary {
  background: white;
  color: var(--primary);
  box-shadow: 0 4px 16px rgba(255,255,255,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,255,255,0.4);
}
.btn-outline {
  background: rgba(255,255,255,0.15);
  color: white;
  border: 2px solid rgba(255,255,255,0.6);
  backdrop-filter: blur(4px);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.25);
  border-color: white;
  transform: translateY(-2px);
}
.btn-sm {
  padding: 8px 20px;
  font-size: 14px;
  border-radius: 8px;
}

/* ========== Sections ========== */
.section { padding: 100px 0; }
.section-alt { background: var(--white); }
.section-title {
  text-align: center;
  font-size: 40px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}
.section-desc {
  text-align: center;
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 64px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ========== Cards ========== */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}
.card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 40px 32px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--primary-dark));
  opacity: 0;
  transition: var(--transition);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.card:hover::before { opacity: 1; }
.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 24px;
}
.card-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 14px;
}
.card-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
}
.card-price {
  font-size: 40px;
  font-weight: 900;
  color: var(--primary);
  margin-bottom: 20px;
  letter-spacing: -1px;
}
.card-price small {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-secondary);
}
.card-features {
  list-style: none;
  margin-bottom: 28px;
}
.card-features li {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.card-features li:last-child { border-bottom: none; }
.card-features li::before {
  content: '✓';
  color: var(--primary);
  font-weight: bold;
  font-size: 14px;
}

/* ========== Number List ========== */
.number-list { display: grid; gap: 16px; }
.number-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--white);
  padding: 24px 32px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.number-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-hover);
  transform: translateX(4px);
}
.number-item .num {
  font-size: 28px;
  font-weight: 800;
  font-family: 'SF Mono', 'Fira Code', monospace;
  letter-spacing: 2px;
  color: var(--text);
}
.number-item .info {
  display: flex;
  align-items: center;
  gap: 20px;
}
.number-item .price {
  color: var(--primary);
  font-weight: 700;
  font-size: 20px;
}
.number-item .tag {
  background: var(--primary-light);
  color: var(--primary);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
}
.number-item .btn { padding: 10px 24px; font-size: 14px; }

/* ========== Table ========== */
.data-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--white);
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.data-table th {
  background: var(--bg);
  padding: 16px 20px;
  text-align: left;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 2px solid var(--border);
}
.data-table td {
  padding: 18px 20px;
  font-size: 15px;
  border-bottom: 1px solid var(--border);
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--primary-light); }

/* ========== Form ========== */
.form-group { margin-bottom: 24px; }
.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}
.form-input {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 15px;
  transition: var(--transition);
  background: var(--bg);
  font-family: inherit;
}
.form-input:focus {
  outline: none;
  border-color: var(--primary);
  background: white;
  box-shadow: 0 0 0 4px rgba(255,107,0,0.1);
}
textarea.form-input { min-height: 120px; resize: vertical; }

/* ========== Footer ========== */
.footer {
  background: #0F0F1A;
  color: rgba(255,255,255,0.5);
  padding: 80px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 64px;
}
.footer h3 {
  color: white;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 24px;
}
.footer p, .footer a {
  font-size: 14px;
  line-height: 2.2;
  color: rgba(255,255,255,0.5);
  transition: var(--transition);
}
.footer a:hover { color: var(--primary); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 32px;
  text-align: center;
  font-size: 14px;
}

/* ========== Responsive ========== */
@media (max-width: 768px) {
  .hero { padding: 80px 0 60px; }
  .hero h1 { font-size: 36px; }
  .hero p { font-size: 18px; }
  .section { padding: 64px 0; }
  .section-title { font-size: 30px; }
  .number-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .number-item .info {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

/* ========== Animations ========== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-in-up {
  animation: fadeInUp 0.6s ease-out forwards;
}
.stagger-1 { animation-delay: 0.1s; opacity: 0; }
.stagger-2 { animation-delay: 0.2s; opacity: 0; }
.stagger-3 { animation-delay: 0.3s; opacity: 0; }
.stagger-4 { animation-delay: 0.4s; opacity: 0; }