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

body {
  font-family:
    "Inter",
    system-ui,
    -apple-system,
    "Segoe UI",
    Roboto,
    "Poppins",
    Helvetica,
    Arial,
    sans-serif;
  background-color: #ffffff;
  color: #1e2f3f;
  line-height: 1.5;
  scroll-behavior: smooth;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 品牌主色调：深蓝+品牌金/橙 */
:root {
  --primary: #0f4c5f;
  --primary-dark: #0a3847;
  --primary-light: #2c7f9c;
  --accent: #f3a333;
  --accent-light: #ffc46b;
  --gray-bg: #f9fbfd;
  --gray-border: #e9edf2;
  --text-dark: #1f2a3e;
  --text-light: #5a6e7f;
}

.icon {
  width: 1em;
  height: 1em;
  vertical-align: -0.15em;
  fill: currentColor;
  overflow: hidden;
}

/* 导航栏 */
.navbar {
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--gray-border);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.9rem 24px;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
}

.logo {
  font-size: 1.7rem;
  font-weight: 700;
  background: linear-gradient(135deg,
      var(--primary) 0%,
      var(--primary-light) 100%);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  letter-spacing: -0.3px;
}

.logo a {
  text-decoration: none;
  background: none;
  color: inherit;
}

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

.nav-phone {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--primary);
  background: #eff5f8;
  padding: 8px 18px;
  border-radius: 40px;
  transition: all 0.2s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.nav-phone:hover {
  background: var(--primary);
  color: white;
}

/* Banner 区域 + 文字动效 */
.hero {
  background: linear-gradient(115deg, #eff7fc 0%, #ffffff 100%);
  padding: 4.5rem 0 5rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle,
      rgba(47, 128, 163, 0.03) 0%,
      rgba(47, 128, 163, 0) 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-content {
  text-align: center;
  max-width: 880px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.6rem);
  font-weight: 800;
  color: var(--primary-dark);
  line-height: 1.2;
  margin-bottom: 1.2rem;
}

.hero-highlight {
  color: var(--accent);
  border-bottom: 3px solid var(--accent-light);
  display: inline-block;
}

.hero-desc {
  font-size: 1.2rem;
  color: var(--text-light);
  margin-bottom: 1.8rem;
  font-weight: 500;
}

.animated-text {
  animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  margin-top: 2rem;
}

.stat-item {
  background: white;
  padding: 0.8rem 1.8rem;
  border-radius: 60px;
  font-weight: 600;
  color: var(--primary);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(15, 76, 95, 0.1);
  font-size: 1rem;
}

.btn-glow {
  display: inline-block;
  background: var(--accent);
  color: #2c3e2f;
  font-weight: 700;
  padding: 12px 32px;
  border-radius: 40px;
  text-decoration: none;
  margin-top: 0.5rem;
  transition: 0.2s;
  box-shadow: 0 6px 14px rgba(243, 163, 51, 0.3);
}

.btn-glow:hover {
  transform: translateY(-3px);
  background: #ffb347;
  box-shadow: 0 12px 22px rgba(243, 163, 51, 0.25);
}

/* 通用板块 */
section {
  padding: 5rem 0;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.section-sub {
  text-align: center;
  color: var(--text-light);
  max-width: 700px;
  margin: 0 auto 2.5rem auto;
}

/* 公司介绍区域 */
.about-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem;
  align-items: center;
  justify-content: space-between;
}

.about-text {
  flex: 1.2;
  min-width: 280px;
}

.about-image {
  flex: 0.8;
  min-width: 280px;
  text-align: center;
}

.about-image img {
  width: 100%;
  max-width: 600px;
  height: auto;
  border-radius: 28px;
  box-shadow: 0 20px 30px -12px rgba(0, 0, 0, 0.12);
  transition: transform 0.3s;
}

.about-image img:hover {
  transform: scale(1.02);
}

.about-text p {
  margin-bottom: 1.2rem;
  color: var(--text-light);
  font-size: 1rem;
}

.highlight-data {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin: 1.5rem 0;
}

.data-card {
  background: var(--gray-bg);
  padding: 0.8rem 1.2rem;
  border-radius: 12px;
  text-align: center;
  flex: 0 0 30%;
  border: 1px solid var(--gray-border);
}

.data-number {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 5px;
  color: var(--primary);
}

.contact-phone-inline {
  background: #eaf5f0;
  padding: 0.4rem 1.2rem;
  border-radius: 40px;
  display: inline-block;
  font-weight: 700;
  color: var(--primary);
  margin: 0.6rem 0;
}

/* 优势卡片 一行三个 分两行 */
.advantages-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.8rem;
  margin-top: 1.5rem;
}

@media (min-width: 768px) {
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .advantages-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.adv-card {
  background: white;
  border-radius: 28px;
  padding: 1.8rem;
  box-shadow: 0 5px 18px rgba(0, 0, 0, 0.02);
  border: 1px solid var(--gray-border);
  transition: all 0.25s ease;
}

.adv-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 30px -12px rgba(0, 0, 0, 0.12);
  border-color: var(--primary-light);
}

.adv-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.adv-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--primary-dark);
}

/* 产品系列区域 */
.product-series {
  margin-top: 2rem;
}

.series-name {
  font-size: 1.8rem;
  font-weight: 700;
  margin: 1.8rem 0 1.5rem 0;
  padding-left: 0.8rem;
  border-left: 5px solid var(--accent);
  color: var(--text-dark);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.8rem;
}

.product-card {
  background: white;
  border-radius: 24px;
  overflow: hidden;
  transition: all 0.25s;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.05);
  border: 1px solid var(--gray-border);
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 25px -12px rgba(0, 0, 0, 0.12);
}

.product-img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: #f4f9fe;
  transition: transform 0.35s ease;
}

.product-card:hover .product-img {
  transform: scale(1.02);
}

.product-info {
  padding: 1rem 0.8rem 1.2rem;
  text-align: center;
  font-size: 1.3rem;
}

.product-name {
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--primary-dark);
}

/* 服务特色区块 */
.service-features {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  background: var(--gray-bg);
  border-radius: 48px;
  padding: 2rem 2rem;
  margin-top: 2rem;
}

.feature-item {
  flex: 1;
  min-width: 160px;
  text-align: center;
}

.feature-item span {
  font-size: 2rem;
}

/* 一键拨号按钮 */
.float-phone {
  position: fixed;
  bottom: 28px;
  right: 28px;
  background-color: var(--primary);
  color: white;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
  z-index: 99;
  transition: 0.2s;
  text-decoration: none;
}

.float-phone:hover {
  background-color: var(--primary-dark);
  transform: scale(1.08);
}

.float-phone svg {
  width: 28px;
  height: 28px;
  fill: white;
}

/* 底部 */
footer {
  background: #0e2a2f;
  color: #cfe3e8;
  padding: 2.5rem 0 1.8rem;
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  text-align: center;
}

.friend-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.8rem;
  margin-bottom: 2rem;
  padding: 0.5rem 0 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.friend-links a {
  color: #cfe3e8;
  text-decoration: none;
  padding: 0.3rem 1rem;
  background: rgba(255, 255, 255, 0.07);
  border-radius: 30px;
  transition: 0.2s;
  font-size: 1rem;
}

.friend-links a:hover {
  background: var(--primary-light);
  color: white;
}

.copyright {
  font-size: 1rem;
  line-height: 1.5;
  opacity: 0.7;
}

@media (max-width: 768px) {
  .nav-container {
    padding: 0.7rem 1rem;
  }

  .logo {
    font-size: 1.3rem;
  }

  .nav-phone {
    font-size: 0.85rem;
    padding: 6px 12px;
  }

  .highlight-data {
    justify-content: space-between;
  }
.contact-phone-inline {
    padding: 1rem 1.2rem;
    display: block;
    font-size: 1.2rem;
    width: 95%;
    text-align: center;
    margin: 1.2rem auto;
}
  .data-card {
    flex: 0 0 46%;
  }

  .hero {
    padding: 2.5rem 0;
  }

  .stat-item {
    font-size: 0.8rem;
    padding: 0.4rem 1rem;
  }

  .section-title {
    font-size: 1.7rem;
  }

  .about-image {
    flex: 1;
  }
}