/* ===== 全局样式 ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #ff6b35;
  --primary-dark: #e55a2b;
  --primary-light: #ff8c5a;
  --secondary: #1a1a2e;
  --text: #333;
  --text-light: #666;
  --text-muted: #999;
  --bg-light: #f8f9fa;
  --bg-dark: #0f0f1a;
  --white: #fff;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
  --radius: 16px;
  --radius-sm: 8px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

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

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.3s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  box-shadow: 0 4px 15px rgba(255, 107, 53, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(255, 107, 53, 0.5);
}

.btn-lg {
  padding: 18px 40px;
  font-size: 18px;
}

.btn-full {
  width: 100%;
}

.btn-arrow {
  transition: transform 0.3s;
}

.btn:hover .btn-arrow {
  transform: translateX(4px);
}

/* ===== 导航栏 ===== */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(26, 26, 46, 0.98);
  backdrop-filter: blur(20px);
  z-index: 1000;
  padding: 0;
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  font-size: 28px;
}

.logo-text {
  font-size: 22px;
  font-weight: 700;
  color: var(--white);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 8px;
}

.nav-links a {
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  font-size: 15px;
  padding: 8px 16px;
  border-radius: 20px;
  transition: all 0.3s;
}

.nav-links a:hover {
  color: var(--white);
  background: rgba(255,255,255,0.1);
}

.nav-contact {
  display: flex;
  align-items: center;
}

.nav-phone {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  padding: 10px 20px;
  background: rgba(255, 107, 53, 0.15);
  border-radius: 25px;
  transition: all 0.3s;
}

.nav-phone:hover {
  background: rgba(255, 107, 53, 0.25);
}

.hamburger {
  display: none;
  font-size: 24px;
  color: var(--white);
  cursor: pointer;
}

/* ===== Hero Banner ===== */
.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 100px 24px 120px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 40%, #0f3460 100%);
  z-index: -2;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(ellipse at 20% 50%, rgba(255, 107, 53, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(255, 140, 90, 0.1) 0%, transparent 40%),
    radial-gradient(ellipse at 60% 80%, rgba(15, 52, 96, 0.3) 0%, transparent 50%);
  z-index: -1;
}

.hero-content {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 1;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  background: rgba(255, 107, 53, 0.2);
  color: var(--primary-light);
  padding: 8px 20px;
  border-radius: 30px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 24px;
  border: 1px solid rgba(255, 107, 53, 0.3);
}

.hero h1 {
  font-size: clamp(40px, 7vw, 72px);
  color: var(--white);
  margin-bottom: 16px;
  font-weight: 400;
  line-height: 1.2;
}

.hero h1 strong {
  color: var(--primary);
  font-weight: 900;
}

.hero-slogan {
  font-size: clamp(18px, 3vw, 24px);
  color: rgba(255,255,255,0.7);
  margin-bottom: 32px;
  letter-spacing: 4px;
}

.hero-features {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
  justify-content: center;
}

.feature-tag {
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.9);
  padding: 10px 20px;
  border-radius: 25px;
  font-size: 14px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.15);
}

.hero-actions-centered {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  margin-bottom: 32px;
}

.hero-contact-centered {
  text-align: center;
}

.hero-contact-centered .contact-line {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 12px;
}

.contact-label {
  color: rgba(255,255,255,0.7);
  font-size: 16px;
}

.contact-value {
  color: var(--white);
  font-size: 22px;
  font-weight: 700;
  text-decoration: none;
  transition: color 0.3s;
}

.contact-value:hover {
  color: var(--primary-light);
}

.hero-stats {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  flex-wrap: nowrap;
  gap: 0;
  background: rgba(0,0,0,0.3);
  backdrop-filter: blur(20px);
  padding: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
  overflow-x: auto;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 40px;
}

.stat-num {
  font-size: 36px;
  font-weight: 900;
  color: var(--primary);
  display: flex;
  align-items: baseline;
}

.stat-plus {
  font-size: 20px;
  font-weight: 600;
}

.stat-label {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  margin-top: 4px;
}

.stat-divider {
  width: 1px;
  background: rgba(255,255,255,0.2);
}

/* ===== 通用区块 ===== */
section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-title {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--secondary);
}

.section-sub {
  color: var(--text-light);
  font-size: 16px;
}

/* ===== 服务区域 ===== */
.services {
  background: var(--bg-light);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: all 0.4s ease;
  border: 1px solid transparent;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.service-icon {
  font-size: 56px;
  margin-bottom: 20px;
  display: block;
}

.service-card h3 {
  font-size: 22px;
  margin-bottom: 12px;
  color: var(--secondary);
}

.service-card p {
  color: var(--text-light);
  font-size: 15px;
  line-height: 1.7;
}

/* ===== 报价区域 ===== */
.quote-section {
  background: var(--white);
}

.quote-card {
  max-width: 700px;
  margin: 0 auto;
  background: var(--bg-light);
  border-radius: var(--radius);
  padding: 48px;
  box-shadow: var(--shadow);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-group label {
  font-weight: 600;
  font-size: 14px;
  color: var(--secondary);
}

.required {
  color: var(--primary);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 14px 18px;
  border: 2px solid #e8e8e8;
  border-radius: var(--radius-sm);
  font-size: 15px;
  transition: all 0.3s;
  background: var(--white);
  font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.1);
}

.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 400;
  cursor: pointer;
  padding: 8px 16px;
  background: var(--white);
  border-radius: 20px;
  border: 2px solid #e8e8e8;
  transition: all 0.3s;
}

.checkbox-item:hover {
  border-color: var(--primary);
}

.checkbox-item input {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
}

.quote-result {
  margin-top: 32px;
  padding: 32px;
  background: linear-gradient(135deg, #fff5f0, #fff);
  border-radius: var(--radius);
  border: 2px solid var(--primary);
  text-align: center;
}

.result-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 16px;
}

.result-icon {
  font-size: 32px;
}

.quote-result h3 {
  font-size: 20px;
  color: var(--secondary);
}

.price-display {
  margin-bottom: 12px;
}

.price-value {
  font-size: 48px;
  font-weight: 900;
  color: var(--primary);
}

.price-note {
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 20px;
}

/* ===== 预约区域 ===== */
.booking-section {
  background: var(--bg-light);
}

.booking-form {
  max-width: 700px;
  margin: 0 auto;
  background: var(--white);
  border-radius: var(--radius);
  padding: 48px;
  box-shadow: var(--shadow);
}

.form-tip {
  text-align: center;
  color: var(--text-light);
  font-size: 13px;
  margin-top: 16px;
}

.booking-success {
  max-width: 500px;
  margin: 0 auto;
  text-align: center;
  padding: 60px 40px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.success-icon {
  font-size: 72px;
  margin-bottom: 24px;
}

.booking-success h3 {
  font-size: 28px;
  margin-bottom: 16px;
  color: var(--secondary);
}

.success-contact {
  margin-top: 24px;
  padding: 20px;
  background: var(--bg-light);
  border-radius: var(--radius-sm);
}

.success-contact p {
  margin: 8px 0;
  color: var(--text);
}

/* ===== 评价区域 ===== */
.reviews-section {
  background: var(--white);
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.review-card {
  background: var(--bg-light);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  transition: transform 0.3s;
}

.review-card:hover {
  transform: translateY(-4px);
}

.stars {
  color: #ffc107;
  font-size: 20px;
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.review-card > p {
  color: var(--text-light);
  font-size: 15px;
  margin-bottom: 24px;
  line-height: 1.8;
}

.reviewer {
  display: flex;
  align-items: center;
  gap: 14px;
}

.avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
  flex-shrink: 0;
}

.reviewer strong {
  display: block;
  font-size: 16px;
  color: var(--secondary);
}

.reviewer span {
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== 联系区域 ===== */
.contact-section {
  background: var(--secondary);
  color: var(--white);
}

.contact-section .section-title {
  color: var(--white);
}

.contact-section .section-sub {
  color: rgba(255,255,255,0.6);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.contact-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: rgba(255,255,255,0.05);
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.1);
  transition: all 0.3s;
}

.contact-card:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--primary);
}

.contact-card .contact-icon {
  font-size: 32px;
}

.contact-card h4 {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 4px;
  font-weight: 400;
}

.contact-card a,
.contact-card span {
  font-size: 18px;
  font-weight: 600;
  color: var(--white);
  text-decoration: none;
}

.contact-card a:hover {
  color: var(--primary-light);
}

.contact-qrcode {
  text-align: center;
}

.qrcode-wrap {
  width: 200px;
  height: 200px;
  margin: 0 auto 20px;
  background: var(--white);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.qrcode-placeholder {
  text-align: center;
  color: var(--secondary);
}

.qrcode-placeholder span {
  font-size: 14px;
  display: block;
}

.qrcode-placeholder p {
  font-size: 18px;
  font-weight: 700;
  margin-top: 8px;
}

.qrcode-tip {
  color: rgba(255,255,255,0.6);
  font-size: 14px;
}

/* ===== 页脚 ===== */
.footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.7);
  padding: 60px 0 24px;
}

.footer-main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 40px;
}

.footer-logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-brand p {
  margin-bottom: 20px;
}

.footer-contact p {
  margin: 8px 0;
  font-size: 15px;
}

.footer h4 {
  color: var(--white);
  font-size: 16px;
  margin-bottom: 20px;
}

.footer ul {
  list-style: none;
}

.footer ul li {
  margin-bottom: 12px;
  font-size: 14px;
}

.footer ul a {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  transition: color 0.3s;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
}

/* ===== 回到顶部按钮 ===== */
.back-to-top {
  position: fixed;
  right: 30px;
  bottom: 30px;
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  box-shadow: 0 4px 20px rgba(255, 107, 53, 0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.3s ease;
  z-index: 999;
}

.back-to-top span {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
}

.back-to-top svg {
  margin-top: -4px;
}

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

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 30px rgba(255, 107, 53, 0.5);
}

.back-to-top:active {
  transform: translateY(0);
}

/* ===== 响应式 ===== */
@media (max-width: 992px) {
  .hero-stats {
    flex-wrap: wrap;
    gap: 20px;
    padding: 20px;
  }
  
  .stat-item {
    padding: 0 20px;
  }
  
  .stat-divider {
    display: none;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .nav-links, .nav-contact {
    display: none;
  }
  
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--secondary);
    padding: 20px;
    gap: 8px;
  }
  
  .hamburger {
    display: block;
  }
  
  .hero {
    padding: 100px 20px 160px;
  }
  
  .hero-actions {
    flex-direction: column;
    gap: 32px;
  }
  
  .hero-contact {
    padding-top: 0;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .contact-cards {
    grid-template-columns: 1fr;
  }
  
  .footer-main {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 480px) {
  .hero-features {
    flex-direction: column;
  }
  
  .feature-tag {
    text-align: center;
  }
  
  .stat-num {
    font-size: 28px;
  }
  
  .checkbox-group {
    flex-direction: column;
  }
  
  .quote-card,
  .booking-form {
    padding: 32px 24px;
  }
}

/* ===== 悬浮客服按钮 ===== */
.float-kefu {
  position: fixed;
  right: 30px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 999;
}

.kefu-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: #07c160;
  border-radius: 50%;
  color: #fff;
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(7, 193, 96, 0.4);
  transition: all 0.3s ease;
}

.kefu-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(7, 193, 96, 0.5);
}

.kefu-icon {
  font-size: 22px;
  line-height: 1;
}

.kefu-text {
  font-size: 11px;
  margin-top: 2px;
}

@media (max-width: 768px) {
  .float-kefu {
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
  }
  
  .kefu-btn {
    width: 56px;
    height: 56px;
  }
  
  .kefu-icon {
    font-size: 20px;
  }
  
  .kefu-text {
    font-size: 10px;
  }
}