@font-face {
  font-family: 'Default';   /* ← 这是你在代码里称呼它的名字，可自由命名 */
  src: url('../font/SourceHanSansSC-Regular.otf'); /* ← 这是字体文件的实际路径 */
}

/* Minimal Business Landing Page CSS - Volia Consulting */
:root {
  --bg: #1e2121;
  --text: #fffff0;
  --accent-teal: #81d8d1;
  --accent-orange: #ED7439;
  --card-bg: #3c4343;
  --border: rgba(255, 255, 240, 0.1);
}

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

body {
  font-family: 'Default', sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navigation */
nav {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 20px;
}

.logo {
  display: flex;
  align-items: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-teal);
}

/* Logo placeholder - replace with <img> tag or set background-image */
.logo-placeholder {
  width: 40px;
  height: 40px;
  background: var(--accent-teal);
  border-radius: 4px;
  margin-right: 12px;
  flex-shrink: 0;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 2.5rem;
}

nav a {
  text-decoration: none;
  color: var(--text);
  font-weight: 500;
  transition: color 0.3s;
}

nav a:hover {
  color: var(--accent-teal);
}

/* Hero Section */
.hero {
  padding: 8rem 0;
  text-align: center;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--accent-teal);
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text);
  max-width: 600px;
  margin: 0 auto 2rem;
}

.cta-button {
  display: inline-block;
  padding: 1rem 2.5rem;
  background: var(--accent-orange);
  color: var(--bg);
  text-decoration: none;
  border-radius: 4px;
  font-weight: 600;
  transition: transform 0.3s, box-shadow 0.3s;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(237, 116, 57, 0.25);
}

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

h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent-teal);
  margin-bottom: 3rem;
  text-align: center;
}

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
}

.service-card {
  padding: 2.5rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: transform 0.3s, box-shadow 0.3s;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(129, 216, 209, 0.15);
}

.service-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--accent-teal);
}

/* Blog Section */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2.5rem;
}

.blog-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(129, 216, 209, 0.15);
}

.blog-card-content {
  padding: 2rem;
}

.blog-card h3 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--accent-teal);
}

.blog-meta {
  color: var(--text);
  opacity: 0.7;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.blog-card p {
  color: var(--text);
  opacity: 0.9;
  margin-bottom: 1.5rem;
}

.read-more {
  color: var(--accent-orange);
  text-decoration: none;
  font-weight: 600;
}

.read-more:hover {
  text-decoration: underline;
}

/* Blog Post */
.post-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 3rem;
}

.post-content {
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.8;
}

.post-content p {
  margin-bottom: 1.5rem;
}

.post-content h3 {
  color: var(--accent-teal);
  margin: 2rem 0 1rem;
  font-size: 1.5rem;
}

/* Contact */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 1.5rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text);
}

input, textarea {
  width: 100%;
  padding: 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: inherit;
  font-size: 1rem;
  color: var(--text);
  transition: border-color 0.3s;
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--accent-teal);
}

textarea {
  resize: vertical;
  min-height: 150px;
}

button[type="submit"] {
  width: 100%;
  padding: 1rem;
  background: var(--accent-orange);
  color: var(--bg);
  border: none;
  border-radius: 4px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.3s, box-shadow 0.3s;
}

button[type="submit"]:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(237, 116, 57, 0.25);
}

/* Footer */
footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  color: var(--text);
  text-align: center;
  padding: 3rem 0;

}

.footer-content {
  display: flex;
  justify-content: space-around;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-center {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
  margin-bottom: 2rem;
}

footer a {
  color: var(--accent-teal);
  text-decoration: none;
  transition: color 0.3s;
}

footer a:hover {
  color: var(--accent-orange);
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  
  nav ul {
    gap: 1.5rem;
  }
  
  section {
    padding: 3rem 0;
  }
}