@font-face {
  font-family: '霞鹜文楷 SC';
  src: url('https://cdn.jsdelivr.net/gh/chawyehsu/lxgw-wenkai-webfont@latest/dist/LXGWWenKaiMonoTC-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
:root {
  --color-bg: #F6FAFB;
  --color-text: #1A2233;
  --color-text-secondary: #5A6A85;
  --color-border: #E3E8EF;
  --color-card-bg: #FFFFFF;
  --color-code-bg: #232946;
  --color-code-text: #E3E8EF;
  --color-footer-bg: #232946;
  --color-footer-text: #B8C1EC;
  --color-footer-border: #5A6A85;
  --color-primary: #3BB2F6;
  --color-primary-dark: #0077B6;
  --color-secondary: #43E97B;
  --color-accent: #FFB86B;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', '霞鹜文楷 SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  letter-spacing: 0.015em;
  line-height: 1.6;
}
body.dark {
  background: #181C24;
  color: #E3E8EF;
}
body.dark .hero-gradient {
  background: linear-gradient(135deg, #232946 0%, #3BB2F6 100%);
}
body.dark #navbar {
  background: linear-gradient(135deg, #232946 0%, #3BB2F6 100%) !important;
  box-shadow: none;
}
body.dark .card,
body.dark .bg-white {
  background: #232946 !important;
  color: #E3E8EF;
}
body.dark .text-neutral-700,
body.dark .text-neutral-600,
body.dark .text-neutral-500 {
  color: #B8C1EC !important;
}
body.dark .text-neutral-400 {
  color: #A0A8C3 !important;
}
body.dark .text-neutral-300 {
  color: #B8C1EC !important;
}
body.dark .btn,
body.dark .btn-alt,
body.dark .btn-outline,
body.dark .button-animated {
  background: #232946;
  color: #fff;
  border-color: #3BB2F6;
}
body.dark .btn-primary,
body.dark .button-animated {
  background: linear-gradient(90deg, #3BB2F6, #232946);
  color: #fff;
}
body.dark .btn-outline,
body.dark .btn-alt {
  background: #232946;
  color: #3BB2F6;
  border: 2px solid #3BB2F6;
}
body.dark .btn-outline:hover,
body.dark .btn-alt:hover {
  background: linear-gradient(90deg, #3BB2F6, #232946);
  color: #fff;
}
body.dark .heading-xl {
  color: #fff;
}
body.dark .heading-lg {
  color: #B8C1EC;
}
body.dark .text-desc {
  color: #B8C1EC;
}
body.dark .text-lg-desc {
  color: #A0A8C3;
}
body.dark .bg-neutral-100 {
  background: #232946 !important;
}
body.dark .bg-white {
  background: #232946 !important;
}
body.dark .bg-neutral-800 {
  background: #181C24 !important;
}
body.dark .border-neutral-200,
body.dark .border-neutral-300,
body.dark .border-neutral-400 {
  border-color: #3BB2F6 !important;
}
body.dark .bg-primary\/10,
body.dark .bg-secondary\/10 {
  background: rgba(59,178,246,0.08) !important;
}
body.dark .bg-footer {
  background: #181C24 !important;
}
body.dark .text-primary {
  color: #3BB2F6 !important;
}
body.dark .text-secondary {
  color: #43E97B !important;
}
body.dark .icon-success {
  color: #43E97B !important;
}
body.dark .icon-info {
  color: #3BB2F6 !important;
}
body.dark .icon-warning {
  color: #FFB86B !important;
}
body.dark .icon-user {
  color: #3BB2F6 !important;
}
body.dark .icon-accent {
  color: #FFB86B !important;
}
body.dark .wave-bg {
  fill: #232946 !important;
}
.hero-gradient {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  animation: gradientMove 8s ease-in-out infinite alternate;
}
@keyframes gradientMove {
  0% { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}
.card-shadow {
  box-shadow: 0 8px 32px 0 rgba(60, 120, 200, 0.10), 0 1.5px 4px 0 rgba(60, 120, 200, 0.08);
  transition: box-shadow 0.3s cubic-bezier(.4,2,.6,1);
}
.card-shadow:hover {
  box-shadow: 0 16px 48px 0 rgba(60, 120, 200, 0.18), 0 3px 8px 0 rgba(60, 120, 200, 0.12);
}
.animate-float {
  animation: float 6s ease-in-out infinite;
}
@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-15px); }
  100% { transform: translateY(0px); }
}
pre {
  white-space: pre-wrap;
  word-wrap: break-word;
  overflow-x: auto;
  max-width: 100%;
  font-size: 0.875rem;
  line-height: 1.5;
  padding: 1rem;
  border-radius: 0.5rem;
  background-color: var(--color-code-bg);
  color: var(--color-code-text);
  font-family: 'Fira Code', 'Cascadia Code', 'Source Code Pro', Consolas, monospace;
  border-left: 4px solid var(--color-primary);
  box-shadow: 0 2px 8px 0 rgba(60, 120, 200, 0.10);
}
@media (max-width: 640px) {
  pre {
    font-size: 0.75rem;
    padding: 0.75rem;
  }
}
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: #e3e8ef;
  border-radius: 10px;
}
::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary-dark);
}
/* Tailwind 自定义工具类 */
.content-auto {
  content-visibility: auto;
}
.text-shadow {
  text-shadow: 0 2px 8px rgba(0,0,0,0.12);
}
.hover-scale {
  transition: transform 0.3s cubic-bezier(.4,2,.6,1), box-shadow 0.3s;
}
.hover-scale:hover {
  transform: scale(1.03) rotate(-1deg);
  box-shadow: 0 12px 32px 0 rgba(60, 120, 200, 0.16);
}
.gradient-overlay {
  background: linear-gradient(to bottom, rgba(0,0,0,0) 0%, rgba(0,0,0,0.7) 100%);
}

/* 卡片渐入动画 */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s cubic-bezier(.4,2,.6,1) forwards;
}
@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: none;
  }
}

/* 分割线动画 */
.divider-animated {
  height: 3px;
  width: 80px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 2px;
  margin: 1.5rem auto 2.5rem auto;
  animation: dividerGrow 1.2s cubic-bezier(.4,2,.6,1);
}
@keyframes dividerGrow {
  from { width: 0; }
  to { width: 80px; }
}

/* 导航栏渐变和阴影 */
#navbar {
  background: linear-gradient(90deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  box-shadow: 0 2px 8px 0 rgba(60, 120, 200, 0.10);
  transition: background 0.4s, box-shadow 0.3s;
}
#navbar.bg-primary\/95 {
  background: linear-gradient(90deg, var(--color-primary-dark) 0%, var(--color-primary) 100%) !important;
}
#navbar.top-transparent {
  background: transparent !important;
  box-shadow: none !important;
  transition: background 0.4s, box-shadow 0.3s;
}

/* 按钮和链接动画 */
a, button {
  transition: color 0.2s, background 0.2s, box-shadow 0.2s, transform 0.2s;
}
a:hover, button:hover {
  color: var(--color-accent);
}

/* 响应式优化 */
@media (max-width: 640px) {
  .button-animated {
    padding: 0.5rem 1.5rem;
    font-size: 1rem;
  }
  pre {
    font-size: 0.75rem;
    padding: 0.75rem;
  }
}
#backToTop {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 3.5rem;
  height: 3.5rem;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: 0 4px 16px 0 rgba(60, 120, 200, 0.18);
  opacity: 0.92;
  transition: background 0.3s, transform 0.2s, box-shadow 0.2s, opacity 0.2s;
}
#backToTop:hover {
  background: linear-gradient(135deg, var(--color-secondary), var(--color-primary));
  transform: translateY(-4px) scale(1.08);
  opacity: 1;
}
#backToTop:active {
  transform: scale(0.96);
}

#loader {
  background: linear-gradient(120deg, #fff 60%, var(--color-primary) 100%);
  transition: opacity 0.6s;
}
#loader .animate-spin {
  border-radius: 50%;
  border-width: 4px;
  border-style: solid;
  border-color: var(--color-primary) var(--color-primary) var(--color-primary) transparent;
  animation: spin 1s linear infinite;
}
@keyframes spin {
  100% { transform: rotate(360deg); }
}

.button-animated {
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 0.75rem 2.5rem;
  font-weight: 600;
  box-shadow: 0 2px 8px 0 rgba(60, 120, 200, 0.10);
  transition: background 0.4s, transform 0.2s, box-shadow 0.2s, color 0.2s;
  position: relative;
  overflow: hidden;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  outline: none;
  cursor: pointer;
  margin: 0.25rem 0;
}
.button-animated:hover, .button-animated:focus {
  background: linear-gradient(90deg, var(--color-secondary), var(--color-primary));
  transform: translateY(-2px) scale(1.04) rotate(-1deg);
  box-shadow: 0 6px 24px 0 rgba(60, 120, 200, 0.18);
  color: #fff;
}
.button-animated:active {
  transform: scale(0.98);
  color: #fff;
}

.btn-outline-blue {
  background: #fff;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  border-radius: 999px;
  padding: 0.75rem 2.5rem;
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  transition: background 0.3s, color 0.3s, border 0.3s, box-shadow 0.2s, transform 0.2s;
  box-shadow: 0 2px 8px 0 rgba(60, 120, 200, 0.10);
  outline: none;
  cursor: pointer;
  margin: 0.25rem 0;
  position: relative;
  z-index: 1;
}
.btn-outline-blue:hover, .btn-outline-blue:focus {
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  color: #fff;
  border-color: var(--color-primary);
  transform: translateY(-2px) scale(1.04) rotate(-1deg);
  box-shadow: 0 6px 24px 0 rgba(60, 120, 200, 0.18);
}
.btn-outline-blue:active {
  transform: scale(0.98);
}

/* 备用站按钮动画与主站一致 */
.btn-alt {
  background: #fff;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  border-radius: 16px;
  padding: 0.75rem 2.5rem;
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  transition: background 0.3s, color 0.3s, border 0.3s, box-shadow 0.2s, transform 0.2s;
  box-shadow: 0 2px 8px 0 rgba(60, 120, 200, 0.10);
  outline: none;
  cursor: pointer;
  margin: 0.25rem 0;
  position: relative;
  z-index: 1;
}
.btn-alt:hover, .btn-alt:focus {
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  color: #fff;
  border-color: var(--color-primary);
  transform: translateY(-2px) scale(1.04) rotate(-1deg);
  box-shadow: 0 6px 24px 0 rgba(60, 120, 200, 0.18);
}
.btn-alt:active {
  transform: scale(0.98);
}

/* 泡泡动画更大幅度、方向多变 */
.bubble-animate {
  animation: bubbleFloatX 12s ease-in-out infinite alternate, bubbleFloatY 10s ease-in-out infinite alternate, bubbleScale 8s ease-in-out infinite alternate;
}
@keyframes bubbleFloatX {
  0% { transform: translateX(0); }
  50% { transform: translateX(80px); }
  100% { transform: translateX(-40px); }
}
@keyframes bubbleFloatY {
  0% { transform: translateY(0); }
  30% { transform: translateY(-60px); }
  60% { transform: translateY(40px); }
  100% { transform: translateY(-30px); }
}
@keyframes bubbleScale {
  0% { opacity: 0.7; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.12); }
  100% { opacity: 0.7; transform: scale(1); }
}

/* 导航栏渐变与主色衔接 */
#navbar {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 60%, var(--color-secondary) 100%);
  box-shadow: 0 2px 8px 0 rgba(60, 120, 200, 0.10);
  transition: background 0.4s, box-shadow 0.3s;
}
#navbar.bg-primary\/95 {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 60%, var(--color-secondary) 100%) !important;
} 

.github-btn {
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  color: #fff !important;
  border: none;
  border-radius: 999px;
  padding: 0.75rem 2.5rem;
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  box-shadow: 0 2px 8px 0 rgba(60, 120, 200, 0.10);
  outline: none;
  cursor: pointer;
  margin: 0.25rem 0;
  transition: background 0.3s, box-shadow 0.2s, transform 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.github-btn:hover, .github-btn:focus {
  background: linear-gradient(90deg, #0077B6, #43E97B);
  box-shadow: 0 6px 24px 0 rgba(60, 120, 200, 0.18);
  transform: translateY(-2px) scale(1.04) rotate(-1deg);
  color: #fff !important;
}
.github-btn:active {
  transform: scale(0.98);
} 

/* 导航栏菜单字体增大 */
#navbar nav a {
  font-size: 1.18rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}
#navbar nav a:hover, #navbar nav a:focus {
  color: var(--color-accent);
} 

/* 导航栏菜单项简化 */
.nav-link {
  color: #fff;
  font-size: 1.18rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: color 0.2s;
}
.nav-link:hover, .nav-link:focus {
  color: var(--color-accent);
}

/* 移动端菜单项简化 */
.mobile-link {
  color: var(--color-text);
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border);
  transition: color 0.2s;
  font-size: 1.08rem;
}
.mobile-link:hover, .mobile-link:focus {
  color: var(--color-primary);
}

/* 卡片简化 */
.card {
  background: #fff;
  border-radius: 1.25rem;
  box-shadow: 0 8px 32px 0 rgba(60, 120, 200, 0.10), 0 1.5px 4px 0 rgba(60, 120, 200, 0.08);
  transition: box-shadow 0.3s cubic-bezier(.4,2,.6,1);
  padding: 2rem;
}
.card:hover {
  box-shadow: 0 16px 48px 0 rgba(60, 120, 200, 0.18), 0 3px 8px 0 rgba(60, 120, 200, 0.12);
}

/* 按钮简化 */
.btn {
  border-radius: 999px;
  padding: 0.75rem 2.5rem;
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  outline: none;
  cursor: pointer;
  margin: 0.25rem 0;
  transition: background 0.3s, color 0.3s, border 0.3s, box-shadow 0.2s, transform 0.2s;
  box-shadow: 0 2px 8px 0 rgba(60, 120, 200, 0.10);
}
.btn-primary {
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  color: #fff;
  border: none;
}
.btn-primary:hover, .btn-primary:focus {
  background: linear-gradient(90deg, var(--color-secondary), var(--color-primary));
  color: #fff;
  transform: translateY(-2px) scale(1.04) rotate(-1deg);
  box-shadow: 0 6px 24px 0 rgba(60, 120, 200, 0.18);
}
.btn-primary:active {
  transform: scale(0.98);
}
.btn-outline {
  background: #fff;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.btn-outline:hover, .btn-outline:focus {
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  color: #fff;
  border-color: var(--color-primary);
  transform: translateY(-2px) scale(1.04) rotate(-1deg);
  box-shadow: 0 6px 24px 0 rgba(60, 120, 200, 0.18);
}
.btn-outline:active {
  transform: scale(0.98);
}
.btn-alt {
  background: #fff;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  border-radius: 16px;
}
.btn-alt:hover, .btn-alt:focus {
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  color: #fff;
  border-color: var(--color-primary);
  transform: translateY(-2px) scale(1.04) rotate(-1deg);
  box-shadow: 0 6px 24px 0 rgba(60, 120, 200, 0.18);
}
.btn-alt:active {
  transform: scale(0.98);
} 

/* 标题简化类 */
.heading-xl {
  font-size: clamp(2.5rem,6vw,4rem);
  font-weight: bold;
  color: #fff;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  font-family: var(--font-sans, 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', '霞鹜文楷 SC', sans-serif);
  text-shadow: 0 2px 8px rgba(0,0,0,0.12);
}
.heading-lg {
  font-size: clamp(1.75rem,4vw,2.5rem);
  font-weight: bold;
  color: var(--color-neutral-700, #1A2233);
  margin-bottom: 1rem;
  font-family: var(--font-sans, 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', '霞鹜文楷 SC', sans-serif);
}
.text-desc {
  font-size: clamp(1rem,2vw,1.25rem);
  color: #fff;
  opacity: 0.9;
  margin-bottom: 2.5rem;
  max-width: 40rem;
  margin-left: auto;
  margin-right: auto;
}
.text-lg-desc {
  color: var(--color-text-secondary);
  font-size: 1.125rem;
  margin-bottom: 1.5rem;
} 

/* 图标颜色与样式简化 */
.icon-success {
  color: #43E97B !important;
}
.icon-info {
  color: #3BB2F6 !important;
}
.icon-warning {
  color: #FFB86B !important;
}
.icon-user {
  color: var(--color-primary) !important;
}
.icon-accent {
  color: var(--color-accent) !important;
}
.icon-lg {
  font-size: 1.5rem !important;
}
.icon-xl {
  font-size: 2rem !important;
}
.icon-gap {
  margin-right: 0.75rem !important;
  margin-top: 0.25rem !important;
}