/* 通用样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB',
    'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: #ffffff;
  background: #0a0a0a;
}

/* 导航栏 */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(99, 102, 241, 0.2);
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.navbar-content {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  transition: transform 0.3s;
}

.logo:hover {
  transform: scale(1.05);
}

.logo svg {
  width: 36px;
  height: 36px;
}

.logo-text {
  font-size: 1.375rem;
  font-weight: 800;
  color: #ffffff;
  background: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.nav-links a {
  color: #94a3b8;
  text-decoration: none;
  transition: all 0.3s;
  font-weight: 500;
  font-size: 1rem;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
      height: 2px;
  background: linear-gradient(90deg, #6366f1, #a855f7);
  transition: width 0.3s;
}

.nav-links a:hover {
  color: #ffffff;
}

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

.btn-download-nav {
  background: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
  color: white;
  padding: 0.625rem 1.75rem;
  border-radius: 1rem;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
  position: relative;
  overflow: hidden;
}

.btn-download-nav::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.btn-download-nav:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.btn-download-nav:hover::before {
  left: 100%;
}

/* 容器 */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* 通用Section */
section {
  padding: 6rem 0;
}

section h2 {
  font-size: 2.5rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 0.75rem;
  color: #ffffff;
  text-shadow: 0 0 40px rgba(168, 85, 247, 0.3);
}

section .subtitle {
  text-align: center;
  font-size: 1.125rem;
  color: #94a3b8;
  margin-bottom: 3.5rem;
}

/* 页脚 */
.footer {
  background: #050505;
  color: #94a3b8;
  padding: 5rem 0 2.5rem;
  border-top: 1px solid rgba(99, 102, 241, 0.2);
}

.footer-content {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2.5rem;
  padding: 0 1rem;
  margin-bottom: 2.5rem;
}

.footer h3 {
  color: #ffffff;
  font-weight: 700;
  margin-bottom: 1.25rem;
  font-size: 1.0625rem;
  background: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer ul {
  list-style: none;
}

.footer li {
  padding: 0.625rem 0;
}

.footer a {
  color: #94a3b8;
  text-decoration: none;
  transition: all 0.3s;
  font-size: 0.9375rem;
  display: block;
  position: relative;
}

.footer a::before {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: linear-gradient(90deg, #6366f1, #a855f7);
  transition: width 0.3s;
}

.footer a:hover {
  color: #ffffff;
}

.footer a:hover::before {
  width: 100%;
}

.footer-bottom {
  text-align: center;
  padding-top: 2.5rem;
  border-top: 1px solid rgba(99, 102, 241, 0.2);
  font-size: 0.875rem;
  color: #64748b;
}

/* 按钮样式 */
.btn {
  padding: 1rem 2.5rem;
  border-radius: 1rem;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  transition: all 0.3s;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
  color: white;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 25px rgba(99, 102, 241, 0.5);
}

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

.btn-secondary {
  background: rgba(30, 41, 59, 0.8);
  color: #ffffff;
  border: 1px solid rgba(99, 102, 241, 0.3);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  border-color: rgba(168, 85, 247, 0.5);
  color: #ffffff;
  transform: translateY(-3px);
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.2);
}

.btn-download {
  background: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
  color: white;
  padding: 0.875rem 2rem;
  border-radius: 1rem;
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  transition: all 0.3s;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
  position: relative;
  overflow: hidden;
}

.btn-download::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.btn-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

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

/* 响应式 */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  section h2 {
    font-size: 2rem;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .navbar-content {
    height: 60px;
  }

  .logo svg {
    width: 30px;
    height: 30px;
  }

  .logo-text {
    font-size: 1.125rem;
  }
}

/* 滚动条样式 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #0a0a0a;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #6366f1, #a855f7);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, #818cf8, #c084fc);
}

/* 选择文本样式 */
::selection {
  background: rgba(99, 102, 241, 0.3);
  color: #ffffff;
}

/* 链接动画 */
a {
  transition: all 0.3s ease;
}

/* 平滑滚动 */
html {
  scroll-behavior: smooth;
}

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

/* 输入框样式 */
input,
textarea,
select {
  background: rgba(30, 41, 59, 0.8);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 0.75rem;
  color: #ffffff;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  transition: all 0.3s;
  outline: none;
}

input:focus,
textarea:focus,
select:focus {
  border-color: rgba(168, 85, 247, 0.5);
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.2);
}

input::placeholder,
textarea::placeholder {
  color: #64748b;
}

/* 表单样式 */
form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* 代码块样式 */
code {
  background: rgba(30, 41, 59, 0.8);
  padding: 0.25rem 0.5rem;
  border-radius: 0.375rem;
  font-family: 'Courier New', monospace;
  font-size: 0.875em;
}

pre {
  background: rgba(30, 41, 59, 0.8);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: 0.75rem;
  padding: 1.5rem;
  overflow-x: auto;
  margin: 1.5rem 0;
}

pre code {
  background: none;
  padding: 0;
}

/* 加载动画 */
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* 工具类 */
.text-gradient {
  background: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glass {
  background: rgba(30, 41, 59, 0.8);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.glow {
  box-shadow: 0 0 40px rgba(99, 102, 241, 0.3);
}