/* ============================================
   湖南天成保洁 - 主样式文件
   蓝色主题系保洁服务官网
   ============================================ */

/* ===== CSS 变量 ===== */
:root {
  --primary-dark: #1565C0;
  --primary: #1976D2;
  --primary-light: #2196F3;
  --sky-blue: #03A9F4;
  --cyan: #00BCD4;
  --text-dark: #1a2332;
  --text-body: #37474F;
  --text-muted: #607D8B;
  --text-light: #90A4AE;
  --bg-white: #ffffff;
  --bg-light: #F5F9FF;
  --bg-gray: #ECEFF1;
  --border-color: #E0E7EE;
  --shadow-sm: 0 2px 8px rgba(21, 101, 192, 0.08);
  --shadow-md: 0 8px 24px rgba(21, 101, 192, 0.12);
  --shadow-lg: 0 16px 48px rgba(21, 101, 192, 0.16);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --gradient-primary: linear-gradient(135deg, #1565C0 0%, #2196F3 50%, #03A9F4 100%);
  --gradient-hero: linear-gradient(135deg, #0D47A1 0%, #1565C0 30%, #1976D2 60%, #03A9F4 100%);
  --gradient-soft: linear-gradient(135deg, #E3F2FD 0%, #B3E5FC 100%);
  --container-width: 1200px;
  --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== 重置与基础 ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-body);
  background: var(--bg-white);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-base);
}

ul, ol {
  list-style: none;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  outline: none;
}

/* ===== 通用容器 ===== */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== 通用区块 ===== */
.section {
  padding: 80px 0;
}

.section-gray {
  background: var(--bg-light);
}

.section-title {
  text-align: center;
  margin-bottom: 50px;
}

.section-title h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.section-title p {
  font-size: 16px;
  color: var(--text-muted);
  margin-top: 20px;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: left 0.5s;
  z-index: -1;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(25, 118, 210, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 20px rgba(25, 118, 210, 0.4);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.8);
}

.btn-outline:hover {
  background: #fff;
  color: var(--primary);
  transform: translateY(-2px);
}

.btn-outline-blue {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-outline-blue:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 16px;
}

/* ===== 顶部通栏 ===== */
.top-bar {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.9);
  font-size: 13px;
  line-height: 1;
  padding: 0;
  height: 40px;
  display: flex;
  align-items: center;
  writing-mode: horizontal-tb;
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.top-bar-left {
  display: flex;
  align-items: center;
  flex-shrink: 1;
  min-width: 0;
}

.top-bar-left span {
  display: inline;
  line-height: 40px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: 0;
  flex-shrink: 0;
}

.top-bar-right a {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 5px;
  color: rgba(255,255,255,0.9);
  line-height: 40px;
  padding: 0 12px;
  position: relative;
  white-space: nowrap;
  writing-mode: horizontal-tb;
  font-size: 12px;
  transition: color 0.2s ease;
}

.top-bar-right a + a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 12px;
  background: rgba(255,255,255,0.3);
}

.top-bar-right a:hover {
  color: #fff;
}

.top-bar-right a svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
  flex-shrink: 0;
  display: inline-block;
  vertical-align: middle;
}

/* ===== 导航栏 ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  transition: var(--transition-base);
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}

.navbar.transparent {
  background: rgba(255,255,255,0);
  box-shadow: none;
  position: absolute;
  top: 36px;
  left: 0;
  right: 0;
}

.navbar.scrolled {
  background: rgba(255,255,255,0.98);
  box-shadow: 0 2px 20px rgba(21, 101, 192, 0.1);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-icon svg {
  width: 28px;
  height: 28px;
  fill: #fff;
}

.logo-text h1 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.2;
}

.navbar.transparent .logo-text h1 {
  color: #fff;
}

.logo-text p {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.navbar.transparent .logo-text p {
  color: rgba(255,255,255,0.7);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-menu > li > a {
  display: block;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-body);
  position: relative;
  border-radius: var(--radius-sm);
}

.navbar.transparent .nav-menu > li > a {
  color: rgba(255,255,255,0.95);
}

.nav-menu > li > a:hover,
.nav-menu > li > a.active {
  color: var(--primary);
}

.navbar.transparent .nav-menu > li > a:hover,
.navbar.transparent .nav-menu > li > a.active {
  color: #fff;
}

.nav-menu > li > a::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 24px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: 2px;
  transition: transform 0.3s;
}

.nav-menu > li > a:hover::after,
.nav-menu > li > a.active::after {
  transform: translateX(-50%) scaleX(1);
}

.nav-phone {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  background: var(--gradient-primary);
  color: #fff;
  border-radius: 30px;
  font-weight: 600;
  font-size: 15px;
  box-shadow: 0 4px 12px rgba(25, 118, 210, 0.3);
}

.nav-phone:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(25, 118, 210, 0.4);
}

.nav-phone svg {
  width: 18px;
  height: 18px;
  fill: #fff;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-dark);
  transition: var(--transition-base);
}

.navbar.transparent .nav-toggle span {
  background: #fff;
}

/* ===== Hero 首屏 ===== */
.hero {
  position: relative;
  height: 680px;
  background: var(--gradient-hero);
  overflow: hidden;
  display: flex;
  align-items: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(ellipse at 20% 50%, rgba(3, 169, 244, 0.4) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 30%, rgba(0, 188, 212, 0.3) 0%, transparent 50%);
  animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
  0% { opacity: 0.7; transform: scale(1); }
  100% { opacity: 1; transform: scale(1.05); }
}

/* 波浪装饰 */
.hero-wave {
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  overflow: hidden;
  line-height: 0;
}

.hero-wave svg {
  width: 100%;
  height: 120px;
}

/* 气泡动画 */
.bubble {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  animation: bubbleFloat 15s ease-in-out infinite;
}

@keyframes bubbleFloat {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-30px) rotate(180deg); }
}

.bubble:nth-child(1) { width: 80px; height: 80px; top: 20%; left: 10%; animation-delay: 0s; animation-duration: 12s; }
.bubble:nth-child(2) { width: 40px; height: 40px; top: 60%; left: 15%; animation-delay: 2s; animation-duration: 10s; }
.bubble:nth-child(3) { width: 60px; height: 60px; top: 30%; right: 20%; animation-delay: 1s; animation-duration: 14s; }
.bubble:nth-child(4) { width: 30px; height: 30px; top: 70%; right: 10%; animation-delay: 3s; animation-duration: 8s; }
.bubble:nth-child(5) { width: 50px; height: 50px; top: 15%; right: 35%; animation-delay: 2.5s; animation-duration: 11s; }
.bubble:nth-child(6) { width: 25px; height: 25px; top: 50%; left: 40%; animation-delay: 1.5s; animation-duration: 9s; }

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.hero-text {
  max-width: 600px;
}

.hero-tag {
  display: inline-block;
  padding: 8px 20px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  border-radius: 30px;
  font-size: 14px;
  margin-bottom: 24px;
  border: 1px solid rgba(255,255,255,0.2);
}

.hero-text h1 {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.2s forwards;
}

.hero-text .subtitle {
  font-size: 18px;
  line-height: 1.8;
  margin-bottom: 36px;
  opacity: 0.9;
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.4s forwards;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.6s forwards;
}

.hero-visual {
  width: 400px;
  height: 400px;
  position: relative;
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.8s forwards;
}

.hero-circle {
  position: absolute;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.2);
}

.hero-circle:nth-child(1) {
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  animation: rotate 20s linear infinite;
  border-style: dashed;
}

.hero-circle:nth-child(2) {
  width: 70%;
  height: 70%;
  top: 15%;
  left: 15%;
  animation: rotate 15s linear infinite reverse;
}

.hero-circle:nth-child(3) {
  width: 40%;
  height: 40%;
  top: 30%;
  left: 30%;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-circle:nth-child(3) svg {
  width: 60px;
  height: 60px;
  fill: #fff;
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== 数据统计 ===== */
.stats {
  background: var(--bg-white);
  padding: 60px 0;
  margin-top: -60px;
  position: relative;
  z-index: 10;
}

.stats .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  background: #fff;
  padding: 40px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.stat-item {
  text-align: center;
  padding: 20px;
  border-right: 1px solid var(--border-color);
}

.stat-item:last-child {
  border-right: none;
}

.stat-number {
  font-size: 42px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-number .suffix {
  font-size: 24px;
  margin-left: 2px;
}

.stat-label {
  font-size: 15px;
  color: var(--text-muted);
}

/* ===== 快速服务入口 ===== */
.quick-services {
  padding: 80px 0;
}

.quick-services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.quick-service-card {
  background: #fff;
  padding: 30px 20px;
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
  border: 1px solid transparent;
  cursor: pointer;
}

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

.qs-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto 20px;
  background: var(--gradient-soft);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-base);
}

.quick-service-card:hover .qs-icon {
  background: var(--gradient-primary);
  transform: scale(1.1);
}

.qs-icon svg {
  width: 32px;
  height: 32px;
  fill: var(--primary);
  transition: var(--transition-base);
}

.quick-service-card:hover .qs-icon svg {
  fill: #fff;
}

.quick-service-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 6px;
}

.quick-service-card p {
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== 服务项目展示 ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.service-card {
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.service-card-header {
  height: 140px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.service-card-header::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200px;
  height: 200px;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
}

.service-card-header svg {
  width: 56px;
  height: 56px;
  fill: #fff;
  position: relative;
  z-index: 1;
}

.service-card-body {
  padding: 24px;
}

.service-card-body h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.service-card-body ul {
  margin-bottom: 20px;
}

.service-card-body li {
  font-size: 14px;
  color: var(--text-muted);
  padding: 6px 0;
  padding-left: 20px;
  position: relative;
}

.service-card-body li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary-light);
}

.service-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.service-price {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
}

.service-price small {
  font-size: 13px;
  font-weight: 400;
  color: var(--text-muted);
}

/* ===== 四大优势 ===== */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.advantage-card {
  background: #fff;
  padding: 40px 30px;
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.advantage-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s;
}

.advantage-card:hover::before {
  transform: scaleX(1);
}

.advantage-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.advantage-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  background: var(--gradient-soft);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-base);
}

.advantage-card:hover .advantage-icon {
  background: var(--gradient-primary);
  transform: rotateY(360deg);
  transition: all 0.6s;
}

.advantage-icon svg {
  width: 36px;
  height: 36px;
  fill: var(--primary);
  transition: var(--transition-base);
}

.advantage-card:hover .advantage-icon svg {
  fill: #fff;
}

.advantage-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.advantage-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ===== 五个承诺 ===== */
.promises {
  background: var(--gradient-primary);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.promises::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.promises .section-title h2 {
  color: #fff;
}

.promises .section-title h2::after {
  background: #fff;
}

.promises .section-title p {
  color: rgba(255,255,255,0.8);
}

.promises-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  position: relative;
  z-index: 1;
}

.promise-item {
  text-align: center;
  color: #fff;
  padding: 30px 15px;
  transition: var(--transition-base);
  border-radius: var(--radius-md);
}

.promise-item:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-5px);
}

.promise-number {
  width: 60px;
  height: 60px;
  margin: 0 auto 16px;
  background: rgba(255,255,255,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 700;
  border: 2px solid rgba(255,255,255,0.3);
}

.promise-item h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}

.promise-item p {
  font-size: 13px;
  opacity: 0.85;
}

/* ===== 合作流程 ===== */
.process-timeline {
  position: relative;
  padding: 40px 0;
}

.process-timeline::before {
  content: '';
  position: absolute;
  top: 80px;
  left: 5%;
  right: 5%;
  height: 3px;
  background: var(--border-color);
  border-radius: 2px;
}

.process-steps {
  display: flex;
  justify-content: space-between;
  position: relative;
  z-index: 1;
}

.process-step {
  text-align: center;
  flex: 1;
  position: relative;
}

.process-dot {
  width: 70px;
  height: 70px;
  margin: 0 auto 20px;
  background: #fff;
  border: 3px solid var(--primary-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-base);
  position: relative;
  z-index: 2;
}

.process-step:hover .process-dot {
  background: var(--gradient-primary);
  border-color: var(--primary);
  transform: scale(1.1);
}

.process-dot span {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
  transition: var(--transition-base);
}

.process-step:hover .process-dot span {
  color: #fff;
}

.process-step h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 6px;
}

.process-step p {
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== 案例展示 ===== */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.case-card {
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
}

.case-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.case-image {
  height: 220px;
  background: var(--gradient-soft);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.case-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(21, 101, 192, 0);
  transition: var(--transition-base);
}

.case-card:hover .case-image::before {
  background: rgba(21, 101, 192, 0.3);
}

.case-image svg {
  width: 64px;
  height: 64px;
  fill: var(--primary);
  opacity: 0.6;
  transition: var(--transition-base);
}

.case-card:hover .case-image svg {
  transform: scale(1.2);
}

.case-tag {
  position: absolute;
  top: 15px;
  left: 15px;
  padding: 4px 12px;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  border-radius: 20px;
  z-index: 2;
}

.case-body {
  padding: 20px;
}

.case-body h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.case-body p {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ===== 客户评价 ===== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.testimonial-card {
  background: #fff;
  padding: 35px 30px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
  position: relative;
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 20px;
  right: 25px;
  font-size: 60px;
  font-family: Georgia, serif;
  color: var(--primary-light);
  opacity: 0.2;
  line-height: 1;
}

.testimonial-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.testimonial-stars {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
}

.testimonial-stars svg {
  width: 18px;
  height: 18px;
  fill: #FFC107;
}

.testimonial-text {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.7;
  margin-bottom: 20px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 600;
}

.testimonial-info h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-dark);
}

.testimonial-info span {
  font-size: 12px;
  color: var(--text-muted);
}

/* ===== 新闻资讯 ===== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.news-card {
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
  cursor: pointer;
}

.news-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.news-image {
  height: 200px;
  background: var(--gradient-soft);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.news-image svg {
  width: 56px;
  height: 56px;
  fill: var(--primary);
  opacity: 0.5;
}

.news-date-badge {
  position: absolute;
  bottom: 15px;
  left: 15px;
  background: var(--primary);
  color: #fff;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
}

.news-body {
  padding: 22px;
}

.news-body .news-cat {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(33, 150, 243, 0.1);
  color: var(--primary);
  font-size: 12px;
  border-radius: 20px;
  margin-bottom: 12px;
}

.news-body h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 10px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 15px;
}

.news-more {
  font-size: 14px;
  color: var(--primary);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 4px;
}

.news-more:hover {
  gap: 8px;
}

/* ===== CTA行动号召 ===== */
.cta-section {
  background: var(--gradient-primary);
  padding: 70px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before,
.cta-section::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
}

.cta-section::before {
  width: 300px;
  height: 300px;
  top: -100px;
  left: -100px;
}

.cta-section::after {
  width: 400px;
  height: 400px;
  bottom: -200px;
  right: -150px;
}

.cta-content {
  position: relative;
  z-index: 1;
  color: #fff;
}

.cta-content h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-content p {
  font-size: 16px;
  margin-bottom: 30px;
  opacity: 0.9;
}

.cta-phone {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 24px;
  letter-spacing: 2px;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
}

/* ===== 页脚 ===== */
.footer {
  background: #0D1B2A;
  color: rgba(255,255,255,0.7);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1.5fr 1.5fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-col h3 {
  color: #fff;
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 24px;
  position: relative;
  padding-bottom: 12px;
}

.footer-col h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.footer-about .logo-text h1 {
  color: #fff;
  margin-bottom: 6px;
}

.footer-about p {
  font-size: 14px;
  line-height: 1.7;
  margin: 16px 0;
}

.footer-contact-item {
  display: flex;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 14px;
}

.footer-contact-item svg {
  width: 18px;
  height: 18px;
  fill: var(--primary-light);
  flex-shrink: 0;
  margin-top: 3px;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer-links a::before {
  content: '›';
  color: var(--primary-light);
  font-size: 16px;
}

.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-qrcode {
  width: 120px;
  height: 120px;
  background: #fff;
  border-radius: var(--radius-sm);
  padding: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
}

.footer-qrcode svg {
  width: 100%;
  height: 100%;
}

.footer-qr-text {
  text-align: center;
  font-size: 13px;
  margin-top: 10px;
}

.footer-bottom {
  text-align: center;
  padding: 20px 0;
  font-size: 13px;
}

.footer-bottom a {
  color: rgba(255,255,255,0.5);
}

.footer-bottom a:hover {
  color: #fff;
}

/* ===== 右侧客服工具条 ===== */
.service-toolbar {
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 1px;
  writing-mode: horizontal-tb;
}

.toolbar-item {
  position: relative;
  width: 100px;
  height: 50px;
  background: var(--primary);
  color: #fff;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  cursor: pointer;
  transition: background-color 0.3s ease;
  overflow: hidden;
  padding: 0 10px;
  gap: 8px;
  writing-mode: horizontal-tb;
  box-sizing: border-box;
}

.toolbar-item:first-child {
  border-radius: 6px 0 0 0;
}

.toolbar-item:last-child {
  border-radius: 0 0 0 6px;
}

.toolbar-item:hover {
  background: var(--primary-light);
}

.toolbar-icon {
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.toolbar-icon svg {
  width: 18px;
  height: 18px;
  fill: #fff;
  display: block;
}

.toolbar-text {
  font-size: 12px;
  line-height: 1;
  white-space: nowrap;
  color: #fff;
  flex-shrink: 0;
  writing-mode: horizontal-tb;
  text-orientation: mixed;
  display: inline-block;
}

.toolbar-item .tooltip {
  position: absolute;
  right: 100%;
  top: 50%;
  margin-right: 12px;
  transform: translateY(-50%);
  background: #fff;
  color: var(--text-dark);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-base);
  font-size: 14px;
  z-index: 1000;
}

.toolbar-item .tooltip::after {
  content: '';
  position: absolute;
  right: -6px;
  top: 50%;
  transform: translateY(-50%);
  border-left: 6px solid #fff;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
}

.toolbar-item:hover .tooltip {
  opacity: 1;
  visibility: visible;
}

.toolbar-item.qr-item:hover .tooltip {
  padding: 15px;
}

.toolbar-qr-code {
  width: 100px;
  height: 100px;
  background: #eee;
  border-radius: 4px;
  margin-bottom: 8px;
}

.toolbar-item.back-top {
  margin-top: 10px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-base);
}

.toolbar-item.back-top.visible {
  opacity: 1;
  visibility: visible;
}

/* 移动端右下角回到顶部按钮（桌面端隐藏） */
.back-top-mobile {
  display: none;
}

/* ===== 页面Banner ===== */
.page-banner {
  height: 280px;
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.page-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(ellipse at 30% 50%, rgba(3, 169, 244, 0.3) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 30%, rgba(0, 188, 212, 0.2) 0%, transparent 50%);
}

.page-banner .bubble {
  opacity: 0.5;
}

.page-banner-content {
  position: relative;
  z-index: 2;
  color: #fff;
  text-align: center;
  width: 100%;
}

.page-banner-content h1 {
  font-size: 38px;
  font-weight: 700;
  margin-bottom: 12px;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  opacity: 0.9;
}

.breadcrumb a {
  color: rgba(255,255,255,0.8);
}

.breadcrumb a:hover {
  color: #fff;
}

.breadcrumb .current {
  color: #fff;
}

.breadcrumb-sep {
  opacity: 0.6;
}

/* ===== 两栏布局 ===== */
.two-col {
  display: grid;
  grid-template-columns: 70% 30%;
  gap: 30px;
  align-items: start;
}

.two-col.reverse {
  grid-template-columns: 25% 75%;
}

/* ===== 侧边栏 ===== */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sidebar-widget {
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.widget-title {
  padding: 18px 24px;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 17px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
}

.widget-title svg {
  width: 18px;
  height: 18px;
  fill: #fff;
}

.widget-body {
  padding: 20px 24px;
}

.widget-list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
}

.widget-list li:last-child {
  border-bottom: none;
}

.widget-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
  color: var(--text-body);
  padding: 4px 0;
}

.widget-list a:hover,
.widget-list a.active {
  color: var(--primary);
}

.widget-list a::before {
  content: '›';
  font-size: 16px;
  margin-right: 8px;
  color: var(--primary-light);
}

.widget-list a:hover::before,
.widget-list a.active::before {
  color: var(--primary);
}

.widget-list .count {
  font-size: 12px;
  color: var(--text-muted);
  background: var(--bg-gray);
  padding: 2px 8px;
  border-radius: 10px;
}

/* 侧边栏电话卡片 */
.sidebar-phone {
  background: var(--gradient-primary);
  color: #fff;
  padding: 28px 24px;
  text-align: center;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.sidebar-phone-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 14px;
  background: rgba(255,255,255,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: phonePulse 2s ease-in-out infinite;
}

@keyframes phonePulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255,255,255,0.3); }
  50% { box-shadow: 0 0 0 12px rgba(255,255,255,0); }
}

.sidebar-phone-icon svg {
  width: 26px;
  height: 26px;
  fill: #fff;
}

.sidebar-phone-label {
  font-size: 13px;
  opacity: 0.9;
  margin-bottom: 8px;
}

.sidebar-phone-number {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 6px;
}

.sidebar-phone-desc {
  font-size: 12px;
  opacity: 0.8;
}

/* 快速预约表单 */
.quick-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.quick-form input,
.quick-form select,
.quick-form textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 14px;
  transition: var(--transition-base);
  background: #fff;
}

.quick-form input:focus,
.quick-form select:focus,
.quick-form textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(25, 118, 210, 0.1);
}

.quick-form button {
  width: 100%;
  padding: 12px;
  background: var(--gradient-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition-base);
  box-shadow: 0 4px 12px rgba(25, 118, 210, 0.25);
}

.quick-form button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(25, 118, 210, 0.35);
}

/* ===== 分页器 ===== */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 50px;
}

.pagination a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--text-body);
  transition: var(--transition-base);
}

.pagination a:hover,
.pagination a.active {
  background: var(--gradient-primary);
  border-color: var(--primary);
  color: #fff;
}

.pagination .dots {
  color: var(--text-muted);
  padding: 0 8px;
}

/* ===== 分类筛选 ===== */
.case-filter {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.case-filter button {
  padding: 10px 24px;
  border: 1px solid var(--border-color);
  background: #fff;
  color: var(--text-body);
  border-radius: 30px;
  font-size: 14px;
  transition: var(--transition-base);
}

.case-filter button:hover,
.case-filter button.active {
  background: var(--gradient-primary);
  border-color: var(--primary);
  color: #fff;
}

/* ===== 服务详情页 ===== */
.service-detail-main {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.service-detail-hero {
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.service-detail-image {
  height: 380px;
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-detail-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(ellipse at 30% 50%, rgba(3, 169, 244, 0.3) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 30%, rgba(0, 188, 212, 0.2) 0%, transparent 60%);
}

.service-detail-image svg {
  width: 100px;
  height: 100px;
  fill: rgba(255,255,255,0.9);
  position: relative;
  z-index: 1;
}

.service-detail-info {
  padding: 35px;
}

.service-detail-info h1 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 16px;
}

.service-meta {
  display: flex;
  gap: 24px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.service-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--text-muted);
}

.service-meta-item svg {
  width: 16px;
  height: 16px;
  fill: var(--primary-light);
}

.service-rating {
  display: flex;
  gap: 2px;
}

.service-rating svg {
  width: 16px;
  height: 16px;
  fill: #FFC107;
}

.service-price-tag {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 20px;
}

.service-price-tag .price {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
}

.service-price-tag .unit {
  font-size: 14px;
  color: var(--text-muted);
}

.service-price-tag .original {
  font-size: 14px;
  color: var(--text-light);
  text-decoration: line-through;
}

.service-desc {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-body);
}

/* Tab按钮 - 横向排列 */
.service-tabs {
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.tab-nav {
  display: flex;
  flex-direction: row;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-light);
  overflow-x: auto;
}

.tab-btn {
  flex: 1;
  padding: 18px 24px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-body);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: var(--transition-base);
  position: relative;
  white-space: nowrap;
  text-align: center;
}

.tab-btn::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 20%;
  right: 20%;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: 3px 3px 0 0;
  transform: scaleX(0);
  transition: transform 0.3s;
}

.tab-btn:hover {
  color: var(--primary);
  background: rgba(33, 150, 243, 0.05);
}

.tab-btn.active {
  color: var(--primary);
  background: #fff;
  font-weight: 600;
}

.tab-btn.active::after {
  transform: scaleX(1);
}

.tab-content {
  padding: 35px;
  display: none;
  animation: fadeInSlide 0.4s ease;
}

.tab-content.active {
  display: block;
}

@keyframes fadeInSlide {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.tab-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 16px;
}

.tab-content h4 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-dark);
  margin: 24px 0 12px;
}

.tab-content p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-body);
  margin-bottom: 16px;
}

.tab-content ul {
  margin-bottom: 16px;
}

.tab-content ul li {
  padding: 8px 0;
  padding-left: 28px;
  position: relative;
  font-size: 15px;
  color: var(--text-body);
}

.tab-content ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 8px;
  width: 20px;
  height: 20px;
  background: var(--primary-light);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
}

.tab-content blockquote {
  padding: 20px 24px;
  background: var(--bg-light);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--text-body);
  margin: 20px 0;
}

.faq-item {
  border-bottom: 1px solid var(--border-color);
  padding: 16px 0;
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-q {
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.faq-q::before {
  content: 'Q';
  width: 24px;
  height: 24px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  flex-shrink: 0;
}

.faq-a {
  color: var(--text-muted);
  padding-left: 34px;
  font-size: 14px;
  line-height: 1.7;
}

/* 相关推荐 */
.related-services {
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 30px;
}

.related-services h2 {
  font-size: 22px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.related-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: var(--transition-base);
}

.related-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.related-card-img {
  height: 140px;
  background: var(--gradient-soft);
  display: flex;
  align-items: center;
  justify-content: center;
}

.related-card-img svg {
  width: 48px;
  height: 48px;
  fill: var(--primary);
  opacity: 0.7;
}

.related-card-body {
  padding: 16px;
}

.related-card-body h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.related-card-body .price {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
}

/* ===== 关于我们页 ===== */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image {
  height: 420px;
  background: var(--gradient-soft);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 30% 30%, rgba(33, 150, 243, 0.2) 0%, transparent 50%);
}

.about-image svg {
  width: 120px;
  height: 120px;
  fill: var(--primary);
  opacity: 0.4;
  position: relative;
  z-index: 1;
}

.about-image-badge {
  position: absolute;
  bottom: 30px;
  right: 30px;
  width: 120px;
  height: 120px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
  z-index: 2;
}

.about-image-badge .num {
  font-size: 36px;
  font-weight: 700;
  line-height: 1;
}

.about-image-badge .text {
  font-size: 13px;
  margin-top: 4px;
}

.about-content h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 15px;
}

.about-content h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.about-content p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-body);
  margin-bottom: 16px;
}

.about-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 24px;
}

.about-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-body);
}

.about-feature svg {
  width: 22px;
  height: 22px;
  fill: var(--primary);
  flex-shrink: 0;
}

/* 发展历程 */
.timeline {
  position: relative;
  padding: 20px 0;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  background: var(--border-color);
  border-radius: 2px;
}

.timeline-item {
  display: flex;
  margin-bottom: 50px;
  position: relative;
}

.timeline-item:nth-child(odd) {
  flex-direction: row-reverse;
}

.timeline-content {
  width: 45%;
  background: #fff;
  padding: 25px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
}

.timeline-item:nth-child(odd) .timeline-content {
  text-align: right;
}

.timeline-content:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.timeline-year {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}

.timeline-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.timeline-content p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

.timeline-dot {
  position: absolute;
  left: 50%;
  top: 30px;
  transform: translateX(-50%);
  width: 20px;
  height: 20px;
  background: var(--primary);
  border: 4px solid #fff;
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
  z-index: 2;
}

/* 团队展示 */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.team-card {
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
  text-align: center;
}

.team-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.team-avatar {
  height: 220px;
  background: var(--gradient-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.team-avatar svg {
  width: 80px;
  height: 80px;
  fill: var(--primary);
  opacity: 0.5;
}

.team-info {
  padding: 20px;
}

.team-info h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 4px;
}

.team-info .position {
  font-size: 13px;
  color: var(--primary);
  margin-bottom: 10px;
}

.team-info p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* 企业文化 */
.culture-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.culture-card {
  background: #fff;
  padding: 35px 25px;
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
  border-top: 4px solid var(--primary-light);
}

.culture-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.culture-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto 20px;
  background: var(--gradient-soft);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.culture-icon svg {
  width: 32px;
  height: 32px;
  fill: var(--primary);
}

.culture-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.culture-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* 联系信息卡片 */
.contact-info-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 50px;
}

.contact-info-card {
  background: #fff;
  padding: 35px 25px;
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
}

.contact-info-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.contact-info-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto 20px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-info-icon svg {
  width: 30px;
  height: 30px;
  fill: #fff;
}

.contact-info-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.contact-info-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* 联系表单 + 地图 */
.contact-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-form-wrap {
  background: #fff;
  padding: 40px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.contact-form-wrap h2 {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.contact-form-wrap > p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

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

.form-group label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-dark);
}

.form-group label .required {
  color: #f44336;
  margin-left: 2px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 14px;
  transition: var(--transition-base);
  background: #fff;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(25, 118, 210, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-form button {
  padding: 14px 32px;
  background: var(--gradient-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition-base);
  box-shadow: 0 4px 12px rgba(25, 118, 210, 0.25);
  align-self: flex-start;
}

.contact-form button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(25, 118, 210, 0.35);
}

.map-placeholder {
  border-radius: var(--radius-md);
  background: var(--gradient-soft);
  min-height: 500px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}

.map-placeholder::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    linear-gradient(rgba(33, 150, 243, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(33, 150, 243, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
}

.map-pin {
  position: relative;
  z-index: 1;
  text-align: center;
}

.map-pin svg {
  width: 48px;
  height: 48px;
  fill: var(--primary);
  margin-bottom: 10px;
  animation: pinBounce 2s ease-in-out infinite;
}

@keyframes pinBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.map-pin p {
  font-size: 15px;
  color: var(--primary-dark);
  font-weight: 500;
}

/* ===== 新闻列表页 ===== */
.news-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.news-horizontal {
  display: grid;
  grid-template-columns: 40% 60%;
  gap: 0;
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
}

.news-horizontal:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.news-horizontal-img {
  height: 100%;
  min-height: 200px;
  background: var(--gradient-soft);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.news-horizontal-img svg {
  width: 56px;
  height: 56px;
  fill: var(--primary);
  opacity: 0.5;
  transition: var(--transition-base);
}

.news-horizontal:hover .news-horizontal-img svg {
  transform: scale(1.1);
}

.news-horizontal-body {
  padding: 28px 30px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
}

.news-horizontal-meta {
  display: flex;
  align-items: center;
  gap: 15px;
  font-size: 13px;
  color: var(--text-muted);
}

.news-horizontal-meta .cat-tag {
  padding: 3px 12px;
  background: rgba(33, 150, 243, 0.1);
  color: var(--primary);
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

.news-horizontal-body h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-dark);
  line-height: 1.4;
  transition: var(--transition-base);
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-horizontal:hover h3 {
  color: var(--primary);
}

.news-horizontal-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-horizontal-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 5px;
}

.news-horizontal-footer .read-more {
  font-size: 14px;
  color: var(--primary);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 4px;
}

.news-horizontal-footer .read-more:hover {
  gap: 8px;
}

.news-horizontal-footer .views {
  font-size: 13px;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 4px;
}

.news-horizontal-footer .views svg {
  width: 14px;
  height: 14px;
  fill: var(--text-light);
}

/* ===== 新闻详情页 ===== */
.article-main {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.article-content {
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 45px;
}

.article-header {
  margin-bottom: 30px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
}

.article-header h1 {
  font-size: 30px;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.3;
  margin-bottom: 18px;
}

.article-meta {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-muted);
}

.article-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.article-meta-item svg {
  width: 14px;
  height: 14px;
  fill: var(--text-light);
}

.article-meta-item .cat-tag {
  padding: 2px 10px;
  background: rgba(33, 150, 243, 0.1);
  color: var(--primary);
  border-radius: 20px;
  font-size: 12px;
}

.article-cover {
  width: 100%;
  height: 380px;
  background: var(--gradient-soft);
  border-radius: var(--radius-md);
  margin-bottom: 30px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.article-cover::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(ellipse at 30% 40%, rgba(33, 150, 243, 0.15) 0%, transparent 60%);
}

.article-cover svg {
  width: 80px;
  height: 80px;
  fill: var(--primary);
  opacity: 0.4;
  position: relative;
  z-index: 1;
}

.article-body {
  font-size: 15px;
  line-height: 1.9;
  color: var(--text-body);
}

.article-body h2 {
  font-size: 22px;
  font-weight: 600;
  color: var(--text-dark);
  margin: 35px 0 18px;
  padding-left: 15px;
  border-left: 4px solid var(--primary);
}

.article-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
  margin: 25px 0 14px;
}

.article-body p {
  margin-bottom: 18px;
}

.article-body ul,
.article-body ol {
  margin-bottom: 18px;
  padding-left: 20px;
}

.article-body ul li {
  padding: 6px 0;
  list-style: disc;
}

.article-body ol li {
  padding: 6px 0;
  list-style: decimal;
}

.article-body blockquote {
  padding: 20px 24px;
  background: var(--bg-light);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--text-body);
  margin: 20px 0;
}

.article-body img {
  max-width: 100%;
  border-radius: var(--radius-sm);
  margin: 20px 0;
}

.article-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 30px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}

.article-tags span {
  font-size: 14px;
  color: var(--text-dark);
  font-weight: 500;
}

.article-tags a {
  padding: 4px 14px;
  background: var(--bg-light);
  color: var(--primary);
  border-radius: 20px;
  font-size: 13px;
  transition: var(--transition-base);
}

.article-tags a:hover {
  background: var(--primary);
  color: #fff;
}

.article-share {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 20px;
  padding: 18px 24px;
  background: var(--bg-light);
  border-radius: var(--radius-sm);
}

.article-share span {
  font-size: 14px;
  color: var(--text-body);
  font-weight: 500;
}

.share-btns {
  display: flex;
  gap: 10px;
}

.share-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-base);
  border: 1px solid var(--border-color);
}

.share-btn:hover {
  background: var(--primary);
  border-color: var(--primary);
}

.share-btn svg {
  width: 16px;
  height: 16px;
  fill: var(--text-muted);
  transition: var(--transition-base);
}

.share-btn:hover svg {
  fill: #fff;
}

/* 上一篇/下一篇 */
.article-nav {
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.article-nav-item {
  padding: 24px 30px;
  transition: var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.article-nav-item:hover {
  background: var(--bg-light);
}

.article-nav-item.prev {
  border-right: 1px solid var(--border-color);
}

.article-nav-label {
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.article-nav-title {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-dark);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-nav-item:hover .article-nav-title {
  color: var(--primary);
}

/* 相关推荐 */
.related-news {
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 35px;
}

.related-news h2 {
  font-size: 22px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

.related-news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.related-news-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: var(--transition-base);
}

.related-news-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.related-news-img {
  height: 150px;
  background: var(--gradient-soft);
  display: flex;
  align-items: center;
  justify-content: center;
}

.related-news-img svg {
  width: 42px;
  height: 42px;
  fill: var(--primary);
  opacity: 0.6;
}

.related-news-body {
  padding: 16px;
}

.related-news-body h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-news-body .date {
  font-size: 12px;
  color: var(--text-muted);
}

/* 热门排行 */
.hot-list li {
  padding: 12px 0;
  border-bottom: 1px dashed var(--border-color);
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.hot-list li:last-child {
  border-bottom: none;
}

.hot-number {
  width: 22px;
  height: 22px;
  background: var(--bg-gray);
  color: var(--text-muted);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  flex-shrink: 0;
}

.hot-list li:nth-child(1) .hot-number,
.hot-list li:nth-child(2) .hot-number,
.hot-list li:nth-child(3) .hot-number {
  background: var(--gradient-primary);
  color: #fff;
}

.hot-list a {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.hot-list a:hover {
  color: var(--primary);
}

/* 侧边栏二维码 */
.sidebar-qr {
  text-align: center;
}

.sidebar-qr-img {
  width: 140px;
  height: 140px;
  margin: 0 auto 12px;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sidebar-qr-img svg {
  width: 100%;
  height: 100%;
}

.sidebar-qr p {
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== 滚动动画 ===== */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 页面加载动画 ===== */
.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-hero);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s, visibility 0.5s;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-content {
  text-align: center;
  color: #fff;
}

.loader-spinner {
  width: 60px;
  height: 60px;
  margin: 0 auto 20px;
  border: 3px solid rgba(255,255,255,0.2);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loader-text {
  font-size: 16px;
  opacity: 0.9;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .stats .container { grid-template-columns: repeat(2, 1fr); }
  .quick-services-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .advantages-grid { grid-template-columns: repeat(2, 1fr); }
  .promises-grid { grid-template-columns: repeat(3, 1fr); }
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .culture-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-info-cards { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .two-col,
  .two-col.reverse { grid-template-columns: 1fr; }
  .about-intro { grid-template-columns: 1fr; gap: 40px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .related-news-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: 50px 0; }
  .section-title h2 { font-size: 26px; }
  .hero { height: auto; padding: 100px 0 80px; }
  .hero-text h1 { font-size: 30px; }
  .hero-text .subtitle { font-size: 15px; }
  .hero-visual { display: none; }
  .stats .container { grid-template-columns: 1fr; padding: 24px; }
  .stat-item { border-right: none; border-bottom: 1px solid var(--border-color); }
  .stat-item:last-child { border-bottom: none; }
  .quick-services-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .services-grid { grid-template-columns: 1fr; }
  .advantages-grid { grid-template-columns: 1fr; }
  .promises-grid { grid-template-columns: repeat(2, 1fr); }
  .cases-grid { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .culture-grid { grid-template-columns: 1fr; }
  .contact-info-cards { grid-template-columns: 1fr; }
  .contact-section { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .page-banner { height: 200px; }
  .page-banner-content h1 { font-size: 26px; }
  .news-horizontal { grid-template-columns: 1fr; }
  .news-horizontal-img { min-height: 160px; }
  .related-grid { grid-template-columns: 1fr; }
  .related-news-grid { grid-template-columns: 1fr; }
  .article-content { padding: 25px; }
  .article-header h1 { font-size: 22px; }
  .article-cover { height: 200px; }
  .process-steps { flex-direction: column; gap: 20px; }
  .process-timeline::before { left: 35px; top: 0; bottom: 0; width: 3px; height: auto; }
  .process-step { display: flex; gap: 20px; align-items: flex-start; text-align: left; }
  .process-dot { margin: 0; flex-shrink: 0; width: 60px; height: 60px; }
  .timeline::before { left: 20px; }
  .timeline-item,
  .timeline-item:nth-child(odd) { flex-direction: row; }
  .timeline-content { width: calc(100% - 50px); margin-left: 50px; text-align: left !important; }
  .timeline-dot { left: 20px; }
  .form-row { grid-template-columns: 1fr; }
  .top-bar {
    height: auto;
    min-height: auto;
    padding: 8px 0;
    overflow: visible;
  }
  .top-bar .container {
    flex-direction: column;
    gap: 4px;
    height: auto;
    padding: 0 16px;
  }
  .top-bar-left {
    width: 100%;
    text-align: center;
    display: block;
  }
  .top-bar-left span {
    font-size: 12px;
    line-height: 1.8;
    white-space: normal;
    word-break: break-all;
    display: block;
    overflow: visible;
    text-overflow: clip;
    height: auto;
  }
  .top-bar-right {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0;
  }
  .top-bar-right a {
    line-height: 1.8;
    padding: 2px 10px;
    font-size: 12px;
  }
  .top-bar-right a + a::before { height: 10px; }

  .navbar .container { height: 64px; }
  .navbar.transparent { top: 0; }

  /* ===== 移动端汉堡菜单 ===== */
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 0;
    box-shadow: 0 6px 20px rgba(0,0,0,0.08);
    max-height: calc(100vh - 64px);
    overflow-y: auto;
    z-index: 99;
  }
  .nav-menu.open { display: flex; }
  .nav-menu > li {
    width: 100%;
    border-bottom: 1px solid var(--border-color);
  }
  .nav-menu > li:last-child { border-bottom: none; }
  .nav-menu > li > a {
    color: var(--text-body) !important;
    padding: 16px 20px;
    width: 100%;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    min-height: 44px;
  }
  .nav-menu > li > a::after { display: none; }
  .nav-phone { display: none; }
  .nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    gap: 5px;
    cursor: pointer;
    padding: 0;
    position: relative;
  }
  .nav-toggle span {
    width: 22px;
    height: 2px;
    background: var(--text-dark);
    position: relative;
    transition: transform 0.3s ease, opacity 0.2s ease, top 0.3s ease;
    display: block;
    top: 0;
  }
  .navbar.transparent .nav-toggle span { background: #fff; }
  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg);
    top: 7px;
  }
  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg);
    top: -7px;
  }

  /* ===== Hero按钮移动端 ===== */
  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }
  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
    white-space: nowrap;
  }

  /* ===== 服务导航移动端 ===== */
  .quick-services {
    padding: 40px 0;
    overflow: visible;
  }
  .quick-services-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .quick-service-card {
    padding: 18px 10px;
    min-height: auto;
  }
  .qs-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 12px;
  }
  .qs-icon svg {
    width: 22px;
    height: 22px;
  }
  .quick-service-card h3 {
    font-size: 14px;
    margin-bottom: 4px;
  }
  .quick-service-card p {
    font-size: 12px;
    line-height: 1.4;
  }

  /* ===== 页脚移动端居中 ===== */
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-col {
    text-align: center;
  }
  .footer-col h3::after {
    left: 50%;
    transform: translateX(-50%);
  }
  .footer-about .logo-text { justify-content: center; }
  .footer-about p { text-align: center; }
  .footer-contact-item {
    justify-content: center;
  }
  .footer-links li { text-align: center; }
  .footer-qrcode { margin: 0 auto; }
  .footer-bottom { text-align: center; }

  /* ===== 移动端回到顶部（右下角浮动） ===== */
  .service-toolbar { display: none; }
  .back-top-mobile {
    position: fixed;
    right: 16px;
    bottom: 80px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    z-index: 998;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, transform 0.3s ease;
  }
  .back-top-mobile.visible {
    opacity: 1;
    visibility: visible;
  }
  .back-top-mobile svg {
    width: 20px;
    height: 20px;
    fill: #fff;
  }

  /* ===== CTA ===== */
  .cta-content h2 { font-size: 24px; }
  .cta-phone { font-size: 26px; }
  .cta-buttons {
    flex-direction: column;
    width: 100%;
  }
  .cta-buttons .btn {
    width: 100%;
    justify-content: center;
    white-space: nowrap;
  }

  .article-nav { grid-template-columns: 1fr; }
  .article-nav-item.prev { border-right: none; border-bottom: 1px solid var(--border-color); }
  .tab-nav { overflow-x: auto; }
  .tab-btn { flex: 0 0 auto; padding: 14px 16px; font-size: 14px; }

  /* 防止横向滚动条 */
  html, body { overflow-x: hidden; }
  .container { padding: 0 16px; }

  /* 按钮点击区域 */
  .btn { min-height: 44px; display: inline-flex; align-items: center; }
}

@media (max-width: 480px) {
  .quick-services-grid { grid-template-columns: repeat(2, 1fr); }
  .promises-grid { grid-template-columns: 1fr; }
  .hero-buttons { flex-direction: column; }
  .hero-buttons .btn { width: 100%; }
  .cta-buttons { flex-direction: column; }
  .cta-buttons .btn { width: 100%; }
}