/* ========================================
   新中式高端企业官网 - 完全按照参考图还原
   ======================================== */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Microsoft YaHei", "PingFang SC", "Source Han Sans CN", "Noto Sans CJK SC", sans-serif;
  background: #f5f0e6;
  color: #4a4a4a;
  line-height: 1.8;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

/* === 顶部金色细条 === */
.top-bar {
  background: linear-gradient(90deg, #d4a574 0%, #e8c292 100%);
  padding: 10px 0;
  font-size: 13px;
  color: #fff;
}

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

.top-bar-left {
  font-weight: 500;
  letter-spacing: 1px;
}

.top-bar-right {
  font-weight: 600;
}

/* === 导航栏 === */
.nav-bar {
  background: rgba(255, 255, 255, 0.98);
  padding: 15px 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  backdrop-filter: blur(10px);
}

.nav-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.brand-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #d4a574, #e8c292);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  border-radius: 6px;
  box-shadow: 0 3px 10px rgba(212, 165, 116, 0.3);
}

.brand-text {
  font-size: 20px;
  font-weight: 700;
  color: #2c2c2c;
  letter-spacing: 1px;
}

.nav-links {
  display: flex;
  gap: 50px;
}

.nav-link {
  color: #4a4a4a;
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  padding: 8px 0;
  border-bottom: 2px solid transparent;
  transition: all 0.3s ease;
}

.nav-link:hover {
  color: #d4a574;
  border-bottom-color: #d4a574;
}

/* === Hero 首屏区域 === */
.hero-section {
  position: relative;
  padding: 100px 0 120px;
  background: #f5f0e6;
  overflow: hidden;
}

.hero-bg-left,
.hero-bg-right {
  position: absolute;
  bottom: 0;
  width: 400px;
  height: 200px;
  background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 400 200"><defs><linearGradient id="mountain" x1="0%" y1="0%" x2="100%" y2="100%"><stop offset="0%" style="stop-color:%23a8a8a8;stop-opacity:0.3"/><stop offset="100%" style="stop-color:%23d4d4d4;stop-opacity:0.2"/></linearGradient></defs><path d="M0,120 Q50,80 100,100 T200,110 T300,90 T400,100 L400,200 L0,200 Z" fill="url(%23mountain)"/><path d="M0,150 Q80,120 160,140 T320,150 T400,140 L400,200 L0,200 Z" fill="url(%23mountain)" opacity="0.6"/></svg>');
  background-size: cover;
  background-repeat: no-repeat;
  opacity: 0.8;
  z-index: 1;
}

.hero-bg-left {
  left: 0;
}

.hero-bg-right {
  right: 0;
  transform: scaleX(-1);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  animation: fadeInUp 1s ease;
}

.hero-tag {
  display: inline-block;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid #d4a574;
  border-radius: 20px;
  padding: 8px 24px;
  font-size: 13px;
  color: #8b7355;
  margin-bottom: 30px;
  letter-spacing: 1px;
}

.hero-title {
  font-size: 64px;
  font-weight: 700;
  color: #2c2c2c;
  margin-bottom: 30px;
  letter-spacing: 12px;
}

.hero-subtitle {
  font-size: 15px;
  color: #666;
  line-height: 2.2;
  margin-bottom: 50px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 15px;
  max-width: 800px;
  margin: 0 auto;
}

.hero-btn {
  background: #fff;
  border: 1px solid #d4a574;
  color: #8b7355;
  padding: 12px 28px;
  border-radius: 4px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.3s ease;
}

.hero-btn:hover {
  background: #d4a574;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(212, 165, 116, 0.3);
}

/* === 数据统计区 === */
.stats-section {
  background: #fff;
  padding: 60px 0;
  border-top: 1px solid #e8dcc8;
  border-bottom: 1px solid #e8dcc8;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 50px;
}

.stat-card {
  text-align: center;
  padding: 30px 20px;
  background: rgba(245, 240, 230, 0.3);
  border: 1px solid #e8dcc8;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.stat-card:hover {
  background: #fff;
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(212, 165, 116, 0.15);
}

.stat-number {
  font-size: 48px;
  font-weight: 700;
  color: #d4a574;
  margin-bottom: 12px;
  letter-spacing: 2px;
}

.stat-label {
  font-size: 16px;
  color: #2c2c2c;
  margin-bottom: 8px;
  font-weight: 600;
}

.stat-sublabel {
  font-size: 12px;
  color: #999;
  letter-spacing: 0.5px;
}

/* === 通用区块样式 === */
section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 70px;
}

.section-tag {
  font-size: 12px;
  letter-spacing: 3px;
  color: #d4a574;
  font-weight: 600;
  margin-bottom: 15px;
  text-transform: uppercase;
}

.section-title {
  font-size: 36px;
  color: #2c2c2c;
  font-weight: 700;
  letter-spacing: 3px;
}

/* === 双璧服务 === */
.credentials-section {
  background: #f5f0e6;
  position: relative;
}

.credentials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 50px;
  max-width: 1100px;
  margin: 0 auto;
}

.credential-card {
  background: #fff;
  border: 2px solid #e8dcc8;
  border-radius: 10px;
  padding: 50px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: all 0.4s ease;
}

.credential-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 40px rgba(212, 165, 116, 0.2);
  border-color: #d4a574;
}

.credential-bg-left,
.credential-bg-right {
  position: absolute;
  width: 120px;
  height: 150px;
  opacity: 0.08;
  background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 150"><text x="50" y="75" font-size="80" fill="%23d4a574" text-anchor="middle" dominant-baseline="middle" opacity="0.3">印</text></svg>');
  background-size: contain;
  background-repeat: no-repeat;
}

.credential-bg-left {
  bottom: 20px;
  left: 20px;
}

.credential-bg-right {
  bottom: 20px;
  right: 20px;
}

.credential-cert-img {
  margin-bottom: 25px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.credential-cert-img img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.3s ease;
}

.credential-card:hover .credential-cert-img img {
  transform: scale(1.05);
}

.credential-icon {
  margin-bottom: 25px;
}

.credential-card h3 {
  font-size: 22px;
  color: #2c2c2c;
  margin-bottom: 20px;
  font-weight: 600;
}

.credential-card p {
  font-size: 15px;
  color: #666;
  line-height: 2;
  margin-bottom: 25px;
}

.credential-footer {
  font-size: 13px;
  color: #999;
  padding-top: 20px;
  border-top: 1px solid #f0f0f0;
}

/* === 核心服务项目 === */
.services-section {
  background: #fff;
  position: relative;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.service-card {
  background: #fefdfb;
  border: 1px solid #e8dcc8;
  border-radius: 8px;
  padding: 40px 30px;
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
}

.service-card:hover {
  background: #fff;
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(212, 165, 116, 0.15);
  border-color: #d4a574;
}

.service-number {
  display: inline-block;
  width: 40px;
  height: 40px;
  line-height: 40px;
  background: linear-gradient(135deg, #d4a574, #e8c292);
  color: #fff;
  border-radius: 50%;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
}

.service-card h3 {
  font-size: 18px;
  color: #2c2c2c;
  margin-bottom: 15px;
  font-weight: 600;
}

.service-card p {
  font-size: 14px;
  color: #666;
  line-height: 1.9;
}

.service-bg-left,
.service-bg-right {
  position: absolute;
  bottom: 0;
  width: 250px;
  height: 180px;
  background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 250 180"><rect x="20" y="30" width="40" height="60" fill="%23e8dcc8" opacity="0.2"/><rect x="70" y="50" width="30" height="50" fill="%23e8dcc8" opacity="0.15"/><path d="M10,120 Q50,100 90,115 L90,180 L10,180 Z" fill="%23d4d4d4" opacity="0.1"/></svg>');
  background-size: contain;
  background-repeat: no-repeat;
  opacity: 0.5;
  pointer-events: none;
}

.service-bg-left {
  left: 0;
}

.service-bg-right {
  right: 0;
  transform: scaleX(-1);
}

/* === 深耕行业 === */
.industries-section {
  background: #f5f0e6;
  position: relative;
}

.industries-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.industry-item {
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid #e8dcc8;
  border-left: 4px solid #d4a574;
  border-radius: 8px;
  padding: 30px 25px;
  transition: all 0.3s ease;
}

.industry-item:hover {
  background: #fff;
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(212, 165, 116, 0.15);
  border-color: #d4a574;
}

.industry-item h3 {
  font-size: 18px;
  color: #2c2c2c;
  margin-bottom: 12px;
  font-weight: 600;
}

.industry-item p {
  font-size: 14px;
  color: #666;
  line-height: 1.8;
}

.industry-bg {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 250px;
  background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 250"><path d="M0,180 Q200,140 400,160 T800,170 T1200,150 L1200,250 L0,250 Z" fill="%23d4d4d4" opacity="0.15"/><path d="M0,200 Q150,170 300,185 T600,195 T900,180 T1200,190 L1200,250 L0,250 Z" fill="%23a8a8a8" opacity="0.1"/></svg>');
  background-size: cover;
  background-repeat: no-repeat;
  pointer-events: none;
  opacity: 0.6;
}

/* === 为什么选择我们 === */
.why-section {
  background: #fff;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

.why-card {
  background: #fefdfb;
  border: 1px solid #e8dcc8;
  border-radius: 8px;
  padding: 40px 35px;
  transition: all 0.3s ease;
}

.why-card:hover {
  background: #fff;
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(212, 165, 116, 0.15);
  border-color: #d4a574;
}

.why-card h3 {
  font-size: 20px;
  color: #2c2c2c;
  margin-bottom: 18px;
  font-weight: 600;
}

.why-card p {
  font-size: 15px;
  color: #666;
  line-height: 2;
  margin-bottom: 20px;
}

.why-tags {
  font-size: 13px;
  color: #999;
  padding-top: 15px;
  border-top: 1px solid #f0f0f0;
  letter-spacing: 0.5px;
}

/* === 专业守护横幅 === */
.banner-section {
  background: linear-gradient(135deg, #d4a574 0%, #e8c292 100%);
  padding: 70px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.banner-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 200"><path d="M0,100 Q300,80 600,95 T1200,100" fill="none" stroke="%23fff" stroke-width="1" opacity="0.1"/></svg>');
  background-size: cover;
  opacity: 0.3;
}

.banner-title {
  font-size: 36px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 25px;
  letter-spacing: 4px;
  position: relative;
  z-index: 1;
}

.banner-text {
  font-size: 16px;
  color: #fff;
  line-height: 2.2;
  opacity: 0.95;
  position: relative;
  z-index: 1;
}

/* === 关于我们 === */
.about-section {
  background: #f5f0e6;
  position: relative;
}

.about-content {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: start;
}

.about-text p {
  font-size: 15px;
  color: #555;
  line-height: 2.2;
  margin-bottom: 20px;
  text-indent: 2em;
}

.about-info {
  background: #fff;
  border: 1px solid #e8dcc8;
  border-radius: 8px;
  padding: 35px;
}

.info-item {
  display: flex;
  padding: 15px 0;
  border-bottom: 1px solid #f5f0e6;
}

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

.info-label {
  flex: 0 0 150px;
  font-size: 14px;
  color: #2c2c2c;
  font-weight: 600;
}

.info-value {
  flex: 1;
  font-size: 14px;
  color: #666;
  line-height: 1.8;
}

.about-bg-left,
.about-bg-right {
  position: absolute;
  bottom: 0;
  width: 300px;
  height: 200px;
  background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 300 200"><polygon points="50,150 80,120 110,140 140,110 170,130 200,100 230,120 250,110 250,200 50,200" fill="%23d4d4d4" opacity="0.15"/><path d="M0,170 Q75,150 150,165 T300,170 L300,200 L0,200 Z" fill="%23a8a8a8" opacity="0.1"/></svg>');
  background-size: cover;
  background-repeat: no-repeat;
  opacity: 0.5;
  pointer-events: none;
}

.about-bg-left {
  left: 0;
}

.about-bg-right {
  right: 0;
  transform: scaleX(-1);
}

/* === 品牌理念 === */
.values-section {
  background: #fff;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.value-card {
  background: #fefdfb;
  border: 1px solid #e8dcc8;
  border-radius: 8px;
  padding: 40px 25px;
  text-align: center;
  transition: all 0.3s ease;
}

.value-card:hover {
  background: #fff;
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(212, 165, 116, 0.15);
  border-color: #d4a574;
}

.value-icon {
  font-size: 48px;
  color: #d4a574;
  margin-bottom: 20px;
}

.value-card h3 {
  font-size: 17px;
  color: #2c2c2c;
  margin-bottom: 12px;
  font-weight: 600;
}

.value-card p {
  font-size: 14px;
  color: #666;
  line-height: 1.8;
}

/* === 团队成员 === */
.team-section {
  background: #f5f0e6;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.team-card {
  background: #fff;
  border: 1px solid #e8dcc8;
  border-radius: 8px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.team-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(212, 165, 116, 0.15);
  border-color: #d4a574;
}

.team-placeholder {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, #f5f0e6 0%, #e8dcc8 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: #999;
  font-weight: 600;
  letter-spacing: 1px;
}

.team-card h3 {
  font-size: 17px;
  color: #2c2c2c;
  padding: 20px 20px 10px;
  font-weight: 600;
}

.team-card p {
  font-size: 14px;
  color: #999;
  padding: 0 20px 20px;
}

/* === 合作流程 === */
.process-section {
  background: #fff;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}

.process-step {
  text-align: center;
  padding: 30px 20px;
  background: #fefdfb;
  border: 1px solid #e8dcc8;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.process-step:hover {
  background: #fff;
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(212, 165, 116, 0.15);
  border-color: #d4a574;
}

.step-number {
  display: inline-block;
  width: 50px;
  height: 50px;
  line-height: 50px;
  background: linear-gradient(135deg, #d4a574, #e8c292);
  color: #fff;
  border-radius: 50%;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 20px;
}

.process-step h3 {
  font-size: 18px;
  color: #2c2c2c;
  margin-bottom: 12px;
  font-weight: 600;
}

.process-step p {
  font-size: 14px;
  color: #666;
  line-height: 1.8;
}

/* === 常见问题 === */
.faq-section {
  background: #f5f0e6;
}

.faq-list {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: #fff;
  border: 1px solid #e8dcc8;
  border-radius: 8px;
  padding: 25px 30px;
  margin-bottom: 20px;
  transition: all 0.3s ease;
  cursor: pointer;
}

.faq-item:hover {
  background: #fefdfb;
  box-shadow: 0 5px 20px rgba(212, 165, 116, 0.1);
  border-color: #d4a574;
}

.faq-question {
  font-size: 16px;
  color: #2c2c2c;
  font-weight: 500;
  user-select: none;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, margin-top 0.4s ease;
}

.faq-item.open .faq-answer {
  max-height: 500px;
  margin-top: 15px;
}

.faq-answer p {
  font-size: 15px;
  color: #666;
  line-height: 2;
  padding-top: 15px;
  border-top: 1px solid #f0f0f0;
}

/* === 联系我们 === */
.contact-section {
  background: #fff;
}

.contact-content {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 80px;
  background: #fefdfb;
  border: 2px solid #e8dcc8;
  border-radius: 10px;
  padding: 60px;
}

.contact-info h3 {
  font-size: 22px;
  color: #2c2c2c;
  margin-bottom: 30px;
  font-weight: 600;
}

.contact-item {
  margin-bottom: 25px;
}

.contact-label {
  font-size: 15px;
  color: #2c2c2c;
  font-weight: 600;
  margin-bottom: 8px;
}

.contact-value {
  font-size: 15px;
  color: #666;
  line-height: 1.9;
}

.contact-qr {
  display: flex;
  align-items: center;
  justify-content: center;
}

.qr-code {
  display: flex;
  justify-content: center;
  align-items: center;
}

.qr-code img {
  width: 240px;
  height: 240px;
  border: 3px solid #d4a574;
  border-radius: 10px;
  padding: 8px;
  background: #fff;
  box-shadow: 0 5px 20px rgba(212, 165, 116, 0.2);
  transition: transform 0.3s ease;
  object-fit: contain;
}

.qr-code img:hover {
  transform: scale(1.05);
}

/* === 页脚 === */
.footer {
  background: #2c2c2c;
  padding: 40px 0;
  text-align: center;
}

.footer-content p {
  font-size: 13px;
  color: #ccc;
  line-height: 2;
  margin: 5px 0;
}

/* === 动画效果 === */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 滚动入场动画 */
section {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

section.animate-in {
  opacity: 1;
  transform: translateY(0);
}

/* 卡片淡入动画 */
.stat-card,
.credential-card,
.service-card,
.industry-item,
.why-card,
.value-card,
.team-card,
.process-step,
.faq-item {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.stat-card.fade-in,
.credential-card.fade-in,
.service-card.fade-in,
.industry-item.fade-in,
.why-card.fade-in,
.value-card.fade-in,
.team-card.fade-in,
.process-step.fade-in,
.faq-item.fade-in {
  opacity: 1;
  transform: translateY(0);
}

/* 导航栏滚动效果 */
.nav-bar.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* Hero内容动画 */
.hero-content {
  animation: fadeInUp 1s ease 0.2s both;
}

.hero-tag {
  animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-title {
  animation: fadeInUp 0.8s ease 0.5s both;
}

.hero-subtitle {
  animation: fadeInUp 0.8s ease 0.7s both;
}

.hero-buttons {
  animation: fadeInUp 0.8s ease 0.9s both;
}

/* 按钮脉冲效果 */
@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

/* 金色闪光效果 */
@keyframes shine {
  0% {
    background-position: -200%;
  }
  100% {
    background-position: 200%;
  }
}

.service-number,
.step-number {
  background: linear-gradient(135deg, #d4a574, #e8c292, #d4a574);
  background-size: 200% auto;
  animation: shine 3s linear infinite;
}

/* 悬停增强效果 */
.service-card:hover .service-number,
.process-step:hover .step-number {
  animation: pulse 0.6s ease;
}

/* FAQ展开动画 */
.faq-item.open .faq-question::before {
  content: '▾';
  margin-right: 10px;
}

.faq-item .faq-question::before {
  content: '▸';
  margin-right: 10px;
  transition: transform 0.3s ease;
  display: inline-block;
}

/* 导航链接激活状态 */
.nav-link.active {
  color: #d4a574;
  border-bottom-color: #d4a574;
}

/* 滚动条美化 */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: #f5f0e6;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #d4a574, #e8c292);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, #c9985e, #d4a574);
}

/* 文字选中效果 */
::selection {
  background: #d4a574;
  color: #fff;
}

::-moz-selection {
  background: #d4a574;
  color: #fff;
}

/* 加载状态 */
body:not(.loaded) {
  overflow: hidden;
}

body:not(.loaded) .hero-content,
body:not(.loaded) section {
  opacity: 0;
}

/* 性能优化 */
.hero-bg-left,
.hero-bg-right,
.service-bg-left,
.service-bg-right,
.industry-bg,
.about-bg-left,
.about-bg-right,
.credential-bg-left,
.credential-bg-right {
  will-change: transform;
}

/* 图片优化 */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* 打印样式 */
@media print {
  .top-bar,
  .nav-bar,
  .hero-buttons,
  .footer {
    display: none;
  }

  section {
    page-break-inside: avoid;
    opacity: 1 !important;
    transform: none !important;
  }

  .container {
    max-width: 100%;
  }
}

/* === 响应式设计 === */
@media (max-width: 1200px) {
  .container {
    padding: 0 30px;
  }

  .hero-title {
    font-size: 52px;
  }

  .nav-links {
    gap: 30px;
  }
}

@media (max-width: 992px) {
  .stats-grid,
  .services-grid,
  .industries-grid,
  .values-grid,
  .team-grid,
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .credentials-grid,
  .why-grid {
    grid-template-columns: 1fr;
  }

  .about-content,
  .contact-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .nav-links {
    gap: 20px;
  }

  .nav-link {
    font-size: 14px;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 38px;
    letter-spacing: 6px;
  }

  .section-title {
    font-size: 28px;
  }

  .nav-bar .container {
    flex-direction: column;
    gap: 20px;
  }

  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
  }

  .stats-grid,
  .services-grid,
  .industries-grid,
  .values-grid,
  .team-grid,
  .process-grid {
    grid-template-columns: 1fr;
  }

  section {
    padding: 60px 0;
  }

  .contact-content {
    padding: 40px 30px;
  }

  .qr-code img {
    width: 160px;
    height: 160px;
  }

  .credential-cert-img {
    margin-bottom: 20px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 20px;
  }

  .hero-title {
    font-size: 32px;
    letter-spacing: 4px;
  }

  .hero-buttons {
    gap: 10px;
  }

  .hero-btn {
    padding: 10px 20px;
    font-size: 13px;
  }

  .brand-icon {
    width: 35px;
    height: 35px;
    font-size: 18px;
  }

  .brand-text {
    font-size: 18px;
  }

  .nav-link {
    font-size: 13px;
    padding: 6px 0;
  }

  .credential-card {
    padding: 30px 20px;
  }

  .contact-content {
    padding: 30px 20px;
  }
}