/* style.css */
:root {
  --primary: #2BBAD1;
  --primary-dark: #1a9fb8;
  --text: #333;
  --light-bg: #f9fbfd;
  --white: #fff;
  --gray: #666;
  --dark: #222;
  --border: #eaeaea;
  --shadow: 0 4px 12px rgba(0,0,0,0.08);
}

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

body {
  font-family: "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
  color: var(--text);
  background-color: var(--white);
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

/* Header & Navigation */
header {
  background-color: var(--white);
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.logo-container {
    display: flex;
    align-items: center;
}

.logo-image {
    height: 45px; /* 调整高度以匹配您的设计 */
    margin-right: 10px; /* 在图像和文本之间添加一些空间 */
}

.logo-text {
    font-size: 1.5em; /* 或者根据需要调整大小 */
    font-weight: bold;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0 0 0;
}

.logo {
  font-size: 1.6rem;
  font-weight: bold;
  color: var(--primary);
  text-decoration: none;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 1.2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.nav-links a {
  text-decoration: none;
  color: var(--dark);
  font-weight: 500;
  padding: 0.3rem 0;
  position: relative;
  transition: color 0.2s;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary);
  transition: width 0.3s;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #eefaff 0%, #e0f6ff 100%);
  padding: 5rem 0;
  text-align: center;
}

.hero h1 {
  font-size: 2.8rem;
  margin-bottom: 1.2rem;
  color: var(--dark);
  font-weight: 700;
}

.hero p {
  font-size: 1.25rem;
  max-width: 750px;
  margin: 0 auto 2rem;
  color: var(--gray);
}

.btn {
  display: inline-block;
  background-color: var(--primary);
  color: white;
  padding: 0.8rem 2rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  transition: background-color 0.3s, transform 0.2s;
  border: none;
  cursor: pointer;
}

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

/* Sections */
.section {
  padding: 5rem 0;
}

.section-title {
  text-align: center;
  font-size: 2.2rem;
  margin-bottom: 3rem;
  color: var(--dark);
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--primary);
  margin: 0.8rem auto 0;
  border-radius: 2px;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--white);
  border-radius: 10px;
  padding: 2rem;
  box-shadow: var(--shadow);
  transition: transform 0.3s, box-shadow 0.3s;
  border: 1px solid var(--border);
}

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

.card h3 {
  color: var(--primary);
  margin-bottom: 1rem;
  font-size: 1.4rem;
}

.card p {
  color: var(--gray);
}

/* Case List */
.case-item {
  background: var(--white);
  padding: 1.8rem;
  margin-bottom: 1.5rem;
  border-left: 4px solid var(--primary);
  border-radius: 0 8px 8px 0;
  box-shadow: var(--shadow);
}

.case-item h4 {
  margin-bottom: 0.5rem;
  color: var(--dark);
}

.case-item .industry {
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 0.8rem;
  display: block;
}

/* Contact Info */
.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.contact-item h4 {
  color: var(--primary);
  margin-bottom: 0.5rem;
}

/* Footer */
footer {
  background-color: #222;
  color: #ddd;
  padding: 3rem 0 2rem;
  text-align: center;
}

footer .container {
  max-width: 800px;
}

footer p {
  margin: 0.6rem 0;
  line-height: 1.8;
}

footer a {
  color: var(--primary);
  text-decoration: none;
}

/* Responsive */
@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    gap: 1rem;
  }

  .hero h1 {
    font-size: 2.1rem;
  }

  .hero p {
    font-size: 1.05rem;
  }

  .section {
    padding: 3rem 0;
  }

  .section-title {
    font-size: 1.8rem;
  }
}