* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    
    :root {
      --primary-light: #e0f2fe;
      --primary: #0ea5e9;
      --primary-dark: #0369a1;
      --accent-light: #fef3c7;
      --accent: #f59e0b;
      --accent-dark: #d97706;
      --text: #334155;
      --text-gray: #6b7280;
      --text-light: #94a3b8;
      --success: #10b981;
      --danger: #ef4444;
      --light-bg: #f8fafc;
      --dark-bg: #0c4a6e;
      --card-width: 100px;
      --card-height: 130px;
      --section-title-bg: rgba(255, 255, 255, 0.9);
      --card-gap: 1rem;
      --border-radius: 10px;
    }
    a {
  text-decoration: none;
 COLOR: WHITE;
 /*FONT-SIZE:medium;
 font-weight:800;*/
    }
    body {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      line-height: 1.6;
      background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
      color: var(--text);
      min-height: 100vh;
    }
    
  /* ===== 头部导航 ===== */
    header {
      background: linear-gradient(to right, var(--primary), var(--primary-dark));
      color: white;
      padding: 0.1rem 0;
      box-shadow: 0 4px 12px rgba(3, 105, 161, 0.2);
      position: sticky;
      top: 0;
      z-index: 100;
    }

    .header-inner {
      max-width: 1280px;
      margin: 0 auto;
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 0 1.5rem;
      position: relative;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .logo-icon {
      width: 50px;
      height: 50px;
      background: white;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: bold;
      font-size: 1.8rem;
    }

    .logo-text {
      font-size: 1.8rem;
      font-weight: 700;
      color: white;
    }

    /* 汉堡菜单 */
    .hamburger {
      display: none;
      flex-direction: column;
      justify-content: space-around;
      width: 28px;
      height: 24px;
      background: transparent;
      border: none;
      cursor: pointer;
      z-index: 150;
      padding: 0;
    }

    .hamburger span {
      display: block;
      width: 100%;
      height: 3px;
      background: white;
      border-radius: 3px;
      transition: all 0.3s;
    }

    .hamburger.active span:nth-child(1) {
      transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active span:nth-child(2) {
      opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
      transform: translateY(-8px) rotate(-45deg);
    }

    /* ===== 导航菜单优化 ===== */
    .nav-menu {
      display: flex;
      gap: 1rem;
      z-index: 110;
      list-style: none;
    }

    .nav-item {
      position: relative;
      padding: 0.6rem 1rem;
      border-radius: 8px;
      transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
      cursor: pointer;
      font-size: 1rem;
      font-weight: 700;
      color: white;
      text-decoration: none;
      overflow: hidden;
    }

    .nav-item::before {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--accent);
      transform: scaleX(0);
      transform-origin: right;
      transition: transform 0.4s ease;
    }

    .nav-item:hover {
      background: rgba(255, 255, 255, 0.15);
      transform: translateY(-2px);
    }

    .nav-item:hover::before {
      transform: scaleX(1);
      transform-origin: left;
    }

    .nav-item.active {
      background: rgba(255, 255, 255, 0.2);
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    }

    .nav-item.active::before {
      transform: scaleX(1);
    }
	
    
    .user-actions {
      display: flex;
      align-items: center;
      gap: 0.8rem;
      z-index: 110;
    }
    
    .user-info {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.9rem;
      cursor: pointer;
      position: relative;
    }
    
    .user-info .avatar {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;
      font-weight: bold;
      font-size: 0.9rem;
    }
   
 
    
    .modal-header {
      position: relative;
      margin-bottom: 1.8rem;
    }
    
    .modal-title {
      font-size: 1.6rem;
      color: var(--primary-dark);
      text-align: center;
      font-weight: 700;
      position: relative;
      padding-bottom: 10px;
    }
    
    .modal-title::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 50px;
      height: 3px;
      background: var(--accent);
      border-radius: 2px;
    }
    
    .close-btn {
      position: absolute;
      top: -10px;
      right: -10px;
      width: 34px;
      height: 34px;
      background: var(--light-bg);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-weight: bold;
      font-size: 1.1rem;
      color: var(--text);
      transition: all 0.3s;
    }
    
    .close-btn:hover {
      background: #e2e8f0;
      transform: rotate(90deg);
    }
    
    .form-group {
      margin-bottom: 1.3rem;
      position: relative;
    }
    
    .form-label {
      display: block;
      margin-bottom: 0.4rem;
      font-weight: 500;
      color: var(--text);
      font-size: 0.9rem;
    }
    
    .form-input {
      width: 100%;
      padding: 0.9rem 0.9rem 0.9rem 36px;
      border: 1px solid #e2e8f0;
      border-radius: 8px;
      font-size: 0.95rem;
      background: var(--light-bg);
      transition: all 0.3s;
    }
    
    .form-input:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.2);
    }
    
    .form-icon {
      position: absolute;
      left: 12px;
      top: 33px;
      color: var(--text-light);
      font-size: 1.1rem;
    }
    
    .submit-btn {
      background: var(--primary);
      color: white;
      border: none;
      width: 100%;
      padding: 0.9rem;
      border-radius: 8px;
      font-size: 1rem;
      font-weight: 600;
      cursor: pointer;
      transition: background 0.3s;
      margin-top: 0.8rem;
    }
    
    .submit-btn:hover {
      background: var(--primary-dark);
    }
    
    /* ===== 主内容区 ===== */
    main {
      padding: 1rem 1rem;
      background: var(--light-bg);
	  max-width:1280px;
	  margin:auto;
    }
    
    .main-inner {
    /*  max-width: 85%;*/
      margin: 0 auto;
    }
    
    /* 内容区域标题 */
    .section-title-1 {
      font-size: 0.9rem;
      color: var(--primary-dark);
      /*margin-bottom: 1.5rem;*/
      font-weight: 700;
      position: relative;
      /*padding: 0.8rem 1.5rem;*/
      border-radius: var(--border-radius);
      background: var(--section-title-bg);
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.07);
      text-align: left;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      width: 100%;
    }
    
    .section-title-1 i {
      color: var(--accent);
      font-size: 1.3rem;
    }
	.section-title-1 a{COLOR:red;
	}
    
    /* 内容容器设计 */
    .content-container {
     /* background: white;*/
      border-radius: var(--border-radius);
      box-shadow: 0 4px 12px rgba(0,0,0,0.05);
      padding: 0.5rem;
      margin-bottom: 2rem;
      position: relative;
      min-height: 300px;
	  margin-top: 10px;
    }
    
    .content-container:before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 5px;
      border-radius: var(--border-radius) var(--border-radius) 0 0;
    }
    
    /* 容器1样式 */
    .content-container-1:before {
      background: linear-gradient(to right, #ff9a9e, #fad0c4);
    }
    
    /* 容器2样式 */
    .content-container-2:before {
      background: linear-gradient(to right, #a1c4fd, #c2e9fb);
    }
    
    /* 容器3样式 */
    .content-container-3:before {
      background: linear-gradient(to right, #d4fc79, #96e6a1);
    }
    
    /* 内容隔离区域 */
    .isolated-content {
      min-height: 250px;
      width: 100%;
      overflow: auto;
      padding: 0.9rem;
      border-radius: 8px;
      background: var(--light-bg);
      position: relative;
      isolation: isolate;
      contain: layout style paint;
    }
    
    .isolated-content {
      all: initial;
      display: block;
      font-family: inherit;
      font-size: 0.9rem;
      line-height: 1.6;
      color: inherit;
      background: transparent;
      border: none;
    }
    
    .isolated-content * {
      /*all: unset;*/
      all: revert-layer;
      box-sizing: border-box;
    }
    
    /* 容器1专属样式 */
    .content-container-1 .isolated-content {
     /*  --isolated-primary: #f7fcff;*/
     /* --isolated-accent: #4ecdc4; */
      background: linear-gradient(135deg, var(--isolated-primary), white);
      border: 2px solid var(--isolated-accent);
    }
    
    .content-container-1 .isolated-content h3 {
      color: var(--isolated-accent);
      border-color: var(--isolated-primary);
    }
    
    /* 容器2专属样式 */
    .content-container-2 .isolated-content {
      --isolated-primary: #f7fcff;
     /*   --isolated-accent: #ffe66d; */
      background: linear-gradient(135deg, white, var(--isolated-primary));
      border: 2px solid var(--isolated-accent);
    }
    
    .content-container-2 .isolated-content h3 {
     /* color: var(--isolated-primary);*/
      border-color: var(--isolated-accent);
    }
    
    /* 容器3专属样式 */
    .content-container-3 .isolated-content {
      --isolated-primary: #5f27cd;
      --isolated-accent: #ff8787;
      background: linear-gradient(135deg, var(--isolated-primary), white);
      border: 2px solid var(--isolated-accent);
    }
    
    .content-container-3 .isolated-content h3 {
      /*color: var(--isolated-accent);*/
      border-color: var(--isolated-primary);
    }
    
    /* 编辑器区域 */
    .editor-panel {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      margin-top: 15px;
    }
    
    .editor-container {
      flex: 1;
      min-width: 300px;
      background: #282c34;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    }
    
    .editor-header {
      background: #1e2229;
      padding: 8px 15px;
      color: #abb2bf;
      font-size: 0.9rem;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    
    .editor-header i {
      color: #61afef;
    }
    
    #htmlEditor, #cssEditor {
      width: 100%;
      height: 200px;
      font-size: 14px;
    }
    
    .button-row {
      display: flex;
      gap: 15px;
      margin-top: 20px;
    }
    
    .preview-btn, .reset-btn {
      background: var(--primary);
      color: white;
      border: none;
      padding: 0.8rem 1.5rem;
      border-radius: 6px;
      font-size: 1rem;
      cursor: pointer;
      transition: all 0.3s;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    
    .reset-btn {
      background: #6c757d;
    }
    
    .preview-btn:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
    }
    
    .reset-btn:hover {
      background: #5a6268;
      transform: translateY(-2px);
    }
    
    /* 示例内容样式 */
    .demo-content {
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    }
    
    .demo-content h3 {
      color: var(--primary-dark);
      margin-bottom: 15px;
      padding-bottom: 5px;
      border-bottom: 2px solid var(--accent);
    }
    
    .demo-content ul {
      padding-left: 20px;
      margin-bottom: 15px;
    }
    
    .demo-content li {
      margin-bottom: 8px;
    }
    
    /* 状态信息提示 */
    .notification {
      position: fixed;
      top: 20px;
      right: 20px;
      padding: 12px 20px;
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
      z-index: 1000;
      opacity: 0;
      transform: translateX(100%);
      transition: all 0.4s ease;
    }
    
    .notification.active {
      opacity: 1;
      transform: translateX(0);
    }
    
    .notification.success {
      background: var(--success);
      color: white;
    }
    
    .notification.error {
      background: var(--danger);
      color: white;
    }
    
    /* ===== 页脚部分 ===== */
    footer {
      background: linear-gradient(to right, var(--primary-dark), var(--dark-bg));
      color: white;
      padding:1rem;
    }
    
    .footer-inner {
      max-width: 1280px;
      margin: 0 auto;
    }
    
    .company-info {
      display: flex;
      flex-direction: column;
    }
    
    .footer-title {
      font-size: 1.1rem;
      margin-bottom: 1rem;
      position: relative;
      padding-bottom: 0.3rem;
      text-align: left;
    }
    
    .footer-title::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: 0;
      width: 70px;
      height: 3px;
      background: var(--accent);
      border-radius: 2px;
    }
    
    .footer-links {
      list-style: none;
      /*display: flex;*/
      flex-wrap: wrap;
      gap: 1.2rem;
      justify-content: flex-start;
    }
    
    .footer-link {
      display: inline-block;
      /*padding: 0.5rem 1rem;*/
      color: rgba(255, 255, 255, 0.85);
      transition: all 0.3s;
      font-size: 0.9rem;
      /*background: rgba(255, 255, 255, 0.1);*/
      border-radius: 2px;
      /*min-width: 100px;*/
      text-align: center;
    }
    
    .footer-link:hover {
      color: white;
      background: rgba(255, 255, 255, 0.2);
      transform: translateY(-2px);
    }
    .footer-link a {
  color: white;
}
    .copyright {
      text-align: center;
      padding-top: 1rem;
      margin-top: 1rem;
      border-top: 1px solid rgba(255, 255, 255, 0.15);
      color: rgba(255, 255, 255, 0.8);
      font-size: 0.6rem;
      /*display: flex;*/
      flex-wrap: wrap;
      gap: 15px;
      justify-content: space-between;
      align-items: center;
    }
    
    .social-icons {
      display: flex;
      gap: 15px;
    }
    
    .social-icons a {
      color: rgba(255, 255, 255, 0.8);
      transition: all 0.3s;
      font-size: 1.2rem;
    }
    
    .social-icons a:hover {
      color: var(--accent);
      transform: translateY(-3px);
    }
    
    /* 响应式设计 */
    @media (max-width: 768px) {
      .hamburger {
        display: flex;
      }
      
      .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: var(--primary-dark);
        flex-direction: column;
        align-items: center;
        padding: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease;
        z-index: 120;
        box-shadow: 0 8px 12px rgba(0, 0, 0, 0.15);
      }
      
      .nav-menu.active {
        max-height: 280px;
        padding: 1rem 0;
      }
      
      .nav-item {
        width: 90%;
        padding: 0.6rem;
        text-align: center;
        font-size: 0.95rem;
        /*margin: 0.2rem 0;*/
      }
      
      .editor-panel {
        flex-direction: column;
      }
      
      .editor-container {
        width: 100%;
      }
    }