/* 重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }

  /* 移动端滚动优化 */
  html {
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
  }

  /* 优化滚动性能 */
  * {
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
  }
  
  :root {
    /* 深色主题变量 */
    --primary-color: #3b82f6;
    --secondary-color: #8b5cf6;
    --accent-color: #06b6d4;
    --background-dark: #0f172a;
    --background-darker: #020617;
    --surface-dark: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    --border-color: #334155;
    --glass-bg: rgba(30, 41, 59, 0.4);
    --glass-border: rgba(148, 163, 184, 0.1);
  }
  
  /* 白日模式变量 */
  [data-theme="light"] {
    --primary-color: #2563eb;
    --secondary-color: #7c3aed;
    --accent-color: #0891b2;
    --background-dark: #ffffff;
    --background-darker: #f8fafc;
    --surface-dark: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --glass-bg: rgba(248, 250, 252, 0.8);
    --glass-border: rgba(148, 163, 184, 0.2);
  }
  
  body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--background-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
    /* 移动端优化 */
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
  }
  
  /* 浮动公众号图片样式 */
  .floating-gzh {
    position: fixed;
    left: 5px;
    top: 20%;
    transform: translateY(-50%);
    z-index: 999;
    width: 300px;
    height: 300px;
    transition: all 0.3s ease;
    cursor: pointer;
    opacity: 0.9;
  }

  .floating-gzh:hover {
    transform: translateY(-50%) scale(1.05);
    opacity: 1;
  }

  .floating-gzh img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.3s ease;
  }

  .floating-gzh:hover img {
    transform: scale(1.02);
  }


  /* 导航栏样式 */
  .navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 0;
    transition: background-color 0.3s ease;
  }
  
  [data-theme="light"] .navbar {
    background: rgba(255, 255, 255, 0.8);
  }
  
  .nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 calc(2rem + 10px);
  }
  
  .nav-left {
    display: flex;
    align-items: center;
    gap: 3rem;
  }
  
  .logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
  }
  
  .logo svg {
    color: var(--primary-color);
  }
  
  .nav-menu {
    display: flex;
    gap: 2rem;
  }
  
  .nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.3s ease;
  }
  
  .nav-menu a:hover {
    color: var(--text-primary);
  }
  
  .nav-right {
    display: flex;
    gap: 1rem;
    align-items: center;
  }
  
  /* 主题切换按钮 */
  .theme-toggle {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    padding: 0.5rem;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .theme-toggle:hover {
    background: var(--surface-dark);
    color: var(--text-primary);
    transform: scale(1.05);
  }
  
  .theme-icon {
    position: absolute;
    transition: opacity 0.3s ease, transform 0.3s ease;
  }
  
  .sun-icon {
    opacity: 0;
    transform: rotate(180deg);
  }
  
  .moon-icon {
    opacity: 1;
    transform: rotate(0deg);
  }
  
  [data-theme="light"] .sun-icon {
    opacity: 1;
    transform: rotate(0deg);
  }
  
  [data-theme="light"] .moon-icon {
    opacity: 0;
    transform: rotate(-180deg);
  }
  
  .console-btn {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.3s ease;
  }
  
  .console-btn:hover {
    background: var(--surface-dark);
    color: var(--text-primary);
  }
  
  .login-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
  }
  
  .login-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 20px rgba(59, 130, 246, 0.3);
  }
  
  /* 主要内容区域 */
  .main-content {
    padding-top: 30px;
  }
  
  /* Hero 区域 */
  .hero {
    position: relative;
    min-height: 95vh;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    overflow: hidden;
    padding-top: 14rem;
  }

  /* Hero区域底部渐变遮罩 */
  .hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 150px;
    background: linear-gradient(
      to bottom,
      transparent 0%,
      rgba(15, 23, 42, 0.05) 20%,
      rgba(15, 23, 42, 0.2) 40%,
      rgba(15, 23, 42, 0.4) 60%,
      rgba(15, 23, 42, 0.7) 80%,
      var(--background-dark) 95%,
      var(--background-darker) 100%
    );
    pointer-events: none;
    z-index: 5;
  }

  /* 白日模式的Hero底部渐变 */
  [data-theme="light"] .hero::after {
    background: linear-gradient(
      to bottom,
      transparent 0%,
      rgba(255, 255, 255, 0.3) 30%,
      rgba(248, 250, 252, 0.7) 100%,
      var(--background-dark) 100%,
      var(--background-darker) 20%
    );
  }
  
  .hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 10px;
    position: relative;
    z-index: 10;
  }
  
  .hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
  }
  
  .hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--text-primary), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
  }
  
  .hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
  }
  
  /* 链接生成器 */
  .link-generator {
    max-width: 600px;
    margin: 0 auto;
  }

  /* 选项卡样式 */
  .tab-container {
    margin-bottom: 2rem;
  }

  .tab-list {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 0.75rem;
    padding: 0.5rem;
    backdrop-filter: blur(20px);
  }

  .tab-item {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    /* 移动端触摸优化 */
    min-height: 44px;
    touch-action: manipulation;
    -webkit-user-select: none;
    user-select: none;
  }

  .tab-item:hover {
    color: var(--text-primary);
    background: rgba(59, 130, 246, 0.1);
  }

  .tab-item.active {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
  }

  .tab-item.active:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(59, 130, 246, 0.4);
  }
  
  .input-group {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
  }
  
  .link-input {
    flex: 1;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 0.75rem;
    padding: 1rem 1.5rem;
    color: var(--text-primary);
    font-size: 1rem;
    backdrop-filter: blur(20px);
    transition: all 0.3s ease;
  }
  
  .link-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
  }
  
  .link-input::placeholder {
    color: var(--text-muted);
  }
  
  .generate-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border: none;
    color: white;
    padding: 1rem 2rem;
    border-radius: 0.75rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    /* 移动端触摸优化 */
    min-height: 44px;
    touch-action: manipulation;
    -webkit-user-select: none;
    user-select: none;
  }

  .generate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.3);
  }

  .generate-btn:active {
    transform: translateY(0);
    box-shadow: 0 10px 20px rgba(59, 130, 246, 0.2);
  }

  /* 域名选择器样式 */
  .domain-selector {
    margin-bottom: 2rem;
  }

  .domain-options {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
  }

  .domain-option {
    position: relative;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }

  .domain-option input[type="radio"] {
    appearance: none;
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    background: var(--surface-dark);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
  }

  .domain-option input[type="radio"]:checked {
    border-color: var(--primary-color);
    background: var(--primary-color);
  }

  .domain-option input[type="radio"]:checked::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 6px;
    height: 6px;
    background: white;
    border-radius: 50%;
  }

  .domain-label {
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 500;
    user-select: none;
  }

  .domain-option:hover .domain-label {
    color: var(--primary-color);
  }
  
  .generated-link {
    margin-top: 2rem;
  }
  
  .result-box {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 0.75rem;
    padding: 1.5rem;
    backdrop-filter: blur(20px);
  }
  
  .result-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-right: 0.5rem;
    white-space: nowrap;
  }

  .result-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
  }

  .short-link-text {
    color: var(--accent-color);
    font-weight: 500;
    word-break: break-all;
    flex: 1;
    min-width: 200px;
    /* 禁用文本选择 */
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    /* 禁用右键菜单 */
    -webkit-touch-callout: none;
    -webkit-tap-highlight-color: transparent;
  }

  /* 模糊效果样式 */
  .blur-suffix {
    filter: blur(3px);
    transition: filter 0.3s ease;
    /* 确保模糊状态下完全不可选择 */
    pointer-events: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
  }

  .blur-suffix:hover {
    filter: blur(0px);
  }
  

  /* 小的去登录按钮样式 */
  .login-btn-small {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    /* 移动端触摸优化 */
    min-height: 40px;
    touch-action: manipulation;
    -webkit-user-select: none;
    user-select: none;
  }

  .login-btn-small:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 16px rgba(59, 130, 246, 0.3);
  }

  .login-btn-small:active {
    transform: scale(0.98);
  }
  
  /* 背景装饰 */
  .hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    overflow: hidden;
  }

  /* 背景深度层 */
  .hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(
      ellipse at center top,
      rgba(59, 130, 246, 0.08) 0%,
      rgba(139, 92, 246, 0.06) 35%,
      rgba(6, 182, 212, 0.04) 70%,
      transparent 100%
    );
    z-index: 1;
  }

  [data-theme="light"] .hero-bg::before {
    background: radial-gradient(
      ellipse at center top,
      rgba(37, 99, 235, 0.06) 0%,
      rgba(124, 58, 237, 0.04) 35%,
      rgba(8, 145, 178, 0.03) 70%,
      transparent 100%
    );
  }
  
  .bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.25;
    transition: opacity 0.3s ease;
    mix-blend-mode: soft-light;
  }

  [data-theme="light"] .bg-orb {
    opacity: 0.12;
    mix-blend-mode: multiply;
  }
  
  .orb-1 {
    width: 600px;
    height: 600px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    top: 20%;
    left: 10%;
    animation: float 6s ease-in-out infinite;
  }
  
  .orb-2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
    top: 60%;
    right: 20%;
    animation: float 8s ease-in-out infinite reverse;
  }
  
  .orb-3 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    top: 10%;
    right: 10%;
    animation: float 10s ease-in-out infinite;
  }
  
  .orb-4 {
    width: 250px;
    height: 250px;
    background: linear-gradient(135deg, var(--accent-color), var(--secondary-color));
    bottom: 30%;
    left: 5%;
    animation: float 12s ease-in-out infinite;
  }
  
  .orb-5 {
    width: 350px;
    height: 350px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    top: 40%;
    left: 50%;
    transform: translateX(-50%);
    animation: float 7s ease-in-out infinite reverse;
  }
  
  /* 浮动几何形状 */
  .floating-shapes {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
  }
  
  .shape {
    position: absolute;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    opacity: 0.1;
    animation: floatShape 15s ease-in-out infinite;
  }
  
  [data-theme="light"] .shape {
    opacity: 0.05;
  }
  
  .shape-1 {
    width: 20px;
    height: 20px;
    top: 20%;
    left: 15%;
    border-radius: 4px;
    animation-delay: 0s;
    animation-duration: 12s;
  }
  
  .shape-2 {
    width: 15px;
    height: 15px;
    top: 70%;
    right: 25%;
    border-radius: 50%;
    animation-delay: 2s;
    animation-duration: 18s;
  }
  
  .shape-3 {
    width: 25px;
    height: 25px;
    top: 40%;
    left: 80%;
    border-radius: 4px;
    transform: rotate(45deg);
    animation-delay: 4s;
    animation-duration: 14s;
  }
  
  .shape-4 {
    width: 18px;
    height: 18px;
    top: 85%;
    left: 40%;
    border-radius: 50%;
    animation-delay: 6s;
    animation-duration: 16s;
  }
  
  .shape-5 {
    width: 22px;
    height: 22px;
    top: 15%;
    right: 45%;
    border-radius: 4px;
    animation-delay: 8s;
    animation-duration: 20s;
  }
  
  .shape-6 {
    width: 12px;
    height: 12px;
    top: 50%;
    left: 25%;
    border-radius: 50%;
    animation-delay: 10s;
    animation-duration: 13s;
  }
  
  /* 动画线条 */
  .animated-lines {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
  }
  
  .line {
    position: absolute;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    opacity: 0.2;
    animation: lineMove 8s ease-in-out infinite;
  }
  
  [data-theme="light"] .line {
    opacity: 0.1;
  }
  
  .line-1 {
    width: 200px;
    height: 1px;
    top: 30%;
    left: -200px;
    animation-delay: 0s;
  }
  
  .line-2 {
    width: 150px;
    height: 1px;
    top: 60%;
    right: -150px;
    animation-delay: 3s;
    animation-direction: reverse;
  }
  
  .line-3 {
    width: 100px;
    height: 1px;
    top: 80%;
    left: -100px;
    animation-delay: 6s;
  }
  
  .bg-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
      linear-gradient(rgba(148, 163, 184, 0.03) 1px, transparent 1px),
      linear-gradient(90deg, rgba(148, 163, 184, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    transition: opacity 0.3s ease;
    animation: gridPulse 20s ease-in-out infinite;
  }
  
  [data-theme="light"] .bg-grid {
    background-image:
      linear-gradient(rgba(71, 85, 105, 0.08) 1px, transparent 1px),
      linear-gradient(90deg, rgba(71, 85, 105, 0.08) 1px, transparent 1px);
  }
  
  /* 动画关键帧 */
  @keyframes float {
    0%, 100% {
      transform: translateY(0px) rotate(0deg) scale(1);
    }
    33% {
      transform: translateY(-20px) rotate(120deg) scale(1.05);
    }
    66% {
      transform: translateY(10px) rotate(240deg) scale(0.95);
    }
  }
  
  @keyframes floatShape {
    0%, 100% {
      transform: translateY(0px) translateX(0px) rotate(0deg);
      opacity: 0.1;
    }
    25% {
      transform: translateY(-30px) translateX(20px) rotate(90deg);
      opacity: 0.2;
    }
    50% {
      transform: translateY(-10px) translateX(-15px) rotate(180deg);
      opacity: 0.05;
    }
    75% {
      transform: translateY(20px) translateX(10px) rotate(270deg);
      opacity: 0.15;
    }
  }
  
  @keyframes lineMove {
    0% {
      transform: translateX(0);
      opacity: 0;
    }
    20% {
      opacity: 0.2;
    }
    80% {
      opacity: 0.2;
    }
    100% {
      transform: translateX(calc(100vw + 200px));
      opacity: 0;
    }
  }
  
  @keyframes gridPulse {
    0%, 100% {
      opacity: 1;
    }
    50% {
      opacity: 0.5;
    }
  }
  
  /* 通用容器 */
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 calc(2rem + 10px);
  }
  
  .section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 4rem;
    background: linear-gradient(135deg, var(--text-primary), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }
  
  /* 功能特点区域 - 优化为一行四个 */
  .features {
    padding: 6rem 0;
    background: linear-gradient(
      180deg, 
      var(--background-darker) 0%,
      var(--background-dark) 20%,
      var(--background-dark) 80%,
      var(--background-darker) 100%
    );
    transition: background 0.3s ease;
    position: relative;
  }
  
  .features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
  }
  
  .feature-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    backdrop-filter: blur(20px);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
  }
  
  .feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
  }
  
  .feature-card:hover::before {
    opacity: 1;
  }
  
  .feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.1);
  }
  
  .feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
  }
  
  .feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
  }
  
  .feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
  }
  
  /* 用户评价区域 - 优化为一行四个 */
  .testimonials {
    padding: 4rem 0; /* 减少padding向上移动 */
    background: var(--background-darker);
    transition: background 0.3s ease;
  }
  
  .testimonials-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
  }
  
  .testimonial-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 1rem;
    padding: 1.5rem;
    backdrop-filter: blur(20px);
    transition: all 0.3s ease;
    height: fit-content;
  }
  
  .testimonial-card:hover {
    transform: translateY(-5px);
    border-color: var(--secondary-color);
    box-shadow: 0 20px 40px rgba(139, 92, 246, 0.1);
  }
  
  .testimonial-content {
    margin-bottom: 1.5rem;
  }
  
  .testimonial-content p {
    color: var(--text-secondary);
    font-style: italic;
    line-height: 1.6;
    font-size: 0.9rem;
  }
  
  .testimonial-author {
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }
  
  .author-avatar {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.875rem;
  }
  
  .author-info h4 {
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
  }
  
  .author-info span {
    color: var(--text-muted);
    font-size: 0.75rem;
  }
  
  /* 页脚 */
  .footer {
    background: var(--background-darker);
    border-top: 1px solid var(--border-color);
    padding: 4rem 0 2rem;
    transition: background 0.3s ease;
  }
  
  .footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    margin-bottom: 2rem;
  }
  
  .footer-brand .logo {
    margin-bottom: 1rem;
  }
  
  .footer-brand p {
    color: var(--text-secondary);
  }
  
  .footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
  
  .link-group h4 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 1rem;
  }
  
  .link-group a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
  }
  
  .link-group a:hover {
    color: var(--primary-color);
  }
  
  .footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
  }
  
  .footer-bottom p {
    color: var(--text-muted);
    font-size: 0.875rem;
  }
  
  /* 响应式设计 */
  
  /* 大屏平板 */
  @media (max-width: 1200px) {
    .nav-container {
      padding: 0 calc(1.5rem + 10px);
    }
    
    .container {
      padding: 0 calc(1.5rem + 10px);
    }
    
    .hero-container {
      padding: 0 calc(1.5rem + 10px);
    }
  }
  
  /* 平板设备 */
  @media (max-width: 1024px) {
    .features-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 1.5rem;
    }
  
    .testimonials-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 1.5rem;
    }
    
    .hero {
      min-height: 75vh;
      padding-top: 8rem;
    }
    
    .hero-title {
      font-size: 3rem;
      line-height: 1.1;
    }
    
    .hero-subtitle {
      font-size: 1.1rem;
      margin-bottom: 2.5rem;
    }
    
    .nav-right {
      gap: 0.75rem;
    }
  }
  
  /* 移动端 */
  @media (max-width: 768px) {
    /* 移动端隐藏浮动公众号图片 */
    .floating-gzh {
      display: none !important;
      visibility: hidden !important;
      opacity: 0 !important;
    }
    .nav-menu {
      display: none;
    }
    
    .nav-container {
      padding: 0 calc(1rem + 20px);
      flex-wrap: wrap;
      gap: 0.5rem;
    }
    
    .nav-right {
      gap: 0.5rem;
    }
    
    .theme-toggle, .console-btn, .login-btn {
      padding: 0.4rem 0.8rem;
      font-size: 0.8rem;
    }
    
    .theme-toggle {
      width: 36px;
      height: 36px;
    }

    .hero {
      padding-top: 2rem;
      min-height: 60vh;
      align-items: center;
    }
    
    .hero::after {
      height: 100px;
    }
    
    .hero-container {
      padding: 0 calc(1rem + 10px);
    }
  
    .hero-title {
      font-size: 2.2rem;
      line-height: 1.2;
      margin-bottom: 1rem;
    }
  
    .hero-subtitle {
      font-size: 1rem;
      margin-bottom: 2rem;
      line-height: 1.5;
    }
  
    .tab-list {
      gap: 0.25rem;
      padding: 0.375rem;
    }

    .tab-item {
      padding: 0.5rem 0.6rem;
      font-size: 0.75rem;
      min-height: 40px;
    }

    /* 移动端域名选择器优化 */
    .domain-options {
      gap: 0.75rem;
      justify-content: space-around;
    }
    
    .domain-option {
      gap: 0.4rem;
    }
    
    .domain-option input[type="radio"] {
      width: 16px;
      height: 16px;
    }
    
    .domain-option input[type="radio"]:checked::after {
      width: 5px;
      height: 5px;
    }
    
    .domain-label {
      font-size: 0.8rem;
    }

    .input-group {
      flex-direction: column;
      gap: 0.75rem;
      margin-bottom: 1.5rem;
    }
    
    .link-input {
      padding: 0.875rem 1.25rem;
      font-size: 1rem;
    }
    
    .generate-btn {
      padding: 0.875rem 1.5rem;
      font-size: 1rem;
      font-weight: 600;
    }
  
    .result-link {
      flex-direction: column;
      gap: 0.75rem;
      align-items: stretch;
    }
    
    .result-link .result-label {
      margin-bottom: 0.5rem;
    }
    
    .short-link-text {
      margin-bottom: 0.75rem;
      min-width: auto;
    }
    
    .login-btn-small {
      align-self: center;
      padding: 0.5rem 1.25rem;
    }
    
    .container {
      padding: 0 calc(1rem + 10px);
    }
    
    .section-title {
      font-size: 2.2rem;
      margin-bottom: 3rem;
    }
  
    .features-grid {
      grid-template-columns: 1fr;
      gap: 1.25rem;
    }
    
    .feature-card {
      padding: 1.5rem;
      text-align: center;
    }
    
    .feature-icon {
      width: 56px;
      height: 56px;
      margin-bottom: 1.25rem;
    }
    
    .feature-card h3 {
      font-size: 1.1rem;
      margin-bottom: 0.75rem;
    }
    
    .feature-card p {
      font-size: 0.9rem;
      line-height: 1.6;
    }
  
    .testimonials-grid {
      grid-template-columns: 1fr;
      gap: 1rem;
    }
    
    .testimonial-card {
      padding: 1.25rem;
    }
    
    .testimonial-content p {
      font-size: 0.85rem;
      line-height: 1.5;
    }
    
    .author-avatar {
      width: 36px;
      height: 36px;
      font-size: 0.8rem;
    }
    
    .author-info h4 {
      font-size: 0.8rem;
    }
    
    .author-info span {
      font-size: 0.7rem;
    }
  
    .footer-content {
      grid-template-columns: 1fr;
      gap: 2rem;
      text-align: center;
    }
  
    .footer-links {
      grid-template-columns: 1fr;
      gap: 1.5rem;
    }
    
    .link-group {
      text-align: center;
    }
    
    .link-group h4 {
      margin-bottom: 0.75rem;
      font-size: 0.9rem;
    }
    
    .link-group a {
      font-size: 0.85rem;
      margin-bottom: 0.4rem;
    }
  }
  
  /* 小屏手机 */
  @media (max-width: 480px) {
    /* 确保小屏手机隐藏浮动公众号图片 */
    .floating-gzh {
      display: none !important;
      visibility: hidden !important;
      opacity: 0 !important;
    }
    
    .main-content {
      padding-top: 70px;
    }
    
    .nav-container {
      padding: 0 calc(0.75rem + 10px);
    }
  
    .container {
      padding: 0 calc(0.75rem + 10px);
    }
    
    .hero-container {
      padding: 0 calc(0.75rem + 10px);
    }
    
    .hero {
      padding-top: 1.5rem;
      min-height: 55vh;
      align-items: center;
    }
    
    .hero::after {
      height: 80px;
    }
  
    .hero-title {
      font-size: 1.75rem;
      line-height: 1.3;
      margin-bottom: 0.75rem;
    }
    
    .hero-subtitle {
      font-size: 0.9rem;
      margin-bottom: 1.5rem;
      line-height: 1.4;
    }
    
    .link-input {
      padding: 0.75rem 1rem;
      font-size: 0.9rem;
    }
    
    .generate-btn {
      padding: 0.75rem 1.25rem;
      font-size: 0.9rem;
    }
  
    .section-title {
      font-size: 1.75rem;
      margin-bottom: 2.5rem;
      line-height: 1.3;
    }
    
    .features {
      padding: 4rem 0;
    }
    
    .testimonials {
      padding: 3rem 0;
    }
    
    .feature-card {
      padding: 1.25rem;
    }
    
    .feature-icon {
      width: 48px;
      height: 48px;
      margin-bottom: 1rem;
    }
    
    .feature-card h3 {
      font-size: 1rem;
      margin-bottom: 0.5rem;
    }
    
    .feature-card p {
      font-size: 0.85rem;
    }
    
    .testimonial-card {
      padding: 1rem;
    }
    
    .footer {
      padding: 3rem 0 1.5rem;
    }
    
    .footer-content {
      gap: 1.5rem;
    }
    
    .footer-links {
      gap: 1.25rem;
    }
  }
  
  /* 超小屏设备 */
  @media (max-width: 360px) {
    /* 确保超小屏设备隐藏浮动公众号图片 */
    .floating-gzh {
      display: none !important;
      visibility: hidden !important;
      opacity: 0 !important;
    }
    
    .hero-title {
      font-size: 1.5rem;
    }
    
    .hero-subtitle {
      font-size: 0.85rem;
    }
    
    .section-title {
      font-size: 1.5rem;
    }
    
    .nav-right {
      gap: 0.25rem;
    }
    
    .theme-toggle, .console-btn, .login-btn {
      padding: 0.35rem 0.6rem;
      font-size: 0.75rem;
    }
    
    .theme-toggle {
      width: 32px;
      height: 32px;
    }
  }