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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background-color: #f5f6fa;
        }

        .main-container {
            max-width: 1400px;
            margin: 0 auto;
            min-height: calc(100vh - 60px - 50px);
            display: flex;
            padding: 20px;
            gap: 20px;
        }

   /* ========== 瀵艰埅鏍� ========== */
        .navbar {
            max-width: 1350px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
            margin-bottom: 32px;
            border-bottom: 1px solid #eef2f8;
            flex-wrap: wrap;
            gap: 0.8rem;
            position: relative;
            z-index: 1000;
        }
       .navbar .logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: #1e3a5f;
            letter-spacing: -0.3px;
            text-decoration: none;
        }
        .logo span {
            color: #5685a8;
        }
        .nav-container {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .nav-links {
            display: flex;
            gap: 0.3rem;
            list-style: none;
        }
        .nav-item {
            position: relative;
        }
        .nav-item > a {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 0.6rem 1rem;
            text-decoration: none;
            color: #5a6e7c;
            font-weight: 500;
            font-size: 0.9rem;
            transition: all 0.2s;
            border-radius: 0.5rem;
        }
        .nav-item > a:hover, .nav-item > a.active {
            color: #2c6280;
            background: rgba(44, 98, 128, 0.08);
        }
        .nav-item > a .arrow {
            font-size: 0.7rem;
            transition: transform 0.2s;
        }
        .nav-item:hover > a .arrow {
            transform: rotate(180deg);
        }
        .nav-item .arrow {
            font-size: 10px;
        }

        /* 涓嬫媺鑿滃崟 */
        .dropdown {
            position: absolute;
            top: 100%;
            left: 0;
            min-width: 200px;
            background: #fff;
            border-radius: 1rem;
            box-shadow: 0 10px 40px rgba(0,0,0,0.12);
            padding: 0.8rem 0;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.3s ease;
            z-index: 1001;
        }
        .nav-item-t:hover .dropdown {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .dropdown a {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.7rem 1.2rem;
            text-decoration: none;
            color: #5a6e7c;
            font-size: 0.85rem;
            transition: all 0.2s;
        }
        .dropdown a:hover {
            background: #f0f4f8;
            color: #2c6280;
        }
        .dropdown a .icon {
            font-size: 1rem;
        }
        .dropdown-divider {
            height: 1px;
            background: #eef2f8;
            margin: 0.5rem 0;
        }
        .dropdown-title {
            padding: 0.5rem 1.2rem;
            font-size: 0.75rem;
            color: #9aaebf;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        .nav-btn {
            background: linear-gradient(135deg, #ff6b35, #ff8f5a);
            padding: 0.6rem 1.4rem;
            border-radius: 2rem;
            text-decoration: none;
            color: white;
            font-weight: 500;
            font-size: 0.85rem;
            transition: all 0.2s;
            box-shadow: 0 4px 12px rgba(255, 107, 53, 0.25);
        }
        .nav-btn:hover {
            background: linear-gradient(135deg, #e55a28, #ff6b35);
            box-shadow: 0 6px 16px rgba(255, 107, 53, 0.35);
            transform: translateY(-2px);
        }
        .nav-login {
            color: #5a6e7c;
            text-decoration: none;
            font-size: 0.85rem;
            font-weight: 500;
            padding: 0.6rem 1rem;
            border-radius: 0.5rem;
            transition: all 0.2s;
        }
        .nav-login:hover {
            color: #2c6280;
            background: rgba(44, 98, 128, 0.08);
        }

        /* 绉诲姩绔彍鍗曟寜閽� */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            padding: 0.5rem;
            cursor: pointer;
        }
        .mobile-menu-btn span {
            display: block;
            width: 24px;
            height: 2px;
            background: #5a6e7c;
            margin: 5px 0;
            border-radius: 2px;
            transition: all 0.3s;
        }

    :root {
      --primary: #809fb3;
      --primary-dark: #809fb3;
      --primary-light: #7a8a96;
      --primary-glow: rgba(90, 110, 124, 0.25);
      --primary-bg: rgba(90, 110, 124, 0.08);
      --success: #ff6b35;
      --text-dark: #1a1a2e;
      --text-medium: #4a5568;
      --text-light: #718096;
      --border: #e2e8f0;
      --bg-light: #f8fafc;
      --card-shadow: 0 4px 24px rgba(90, 110, 124, 0.12);
      --hover-shadow: 0 8px 32px rgba(90, 110, 124, 0.2);
    }

    .form-container {
            max-width: 1350px;
            margin: 0 auto;
           padding: 20px 20px 20px;
            background: #ffffff;
            border-radius: 20px;
            box-shadow: var(--card-shadow);
            overflow: hidden;
            position: relative;
        }

    .header {
         max-width: 1350px;
            margin: 0 auto;
            border-radius: 20px;
            margin-bottom: 20px;
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
      padding: 40px 40px 40px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .header::before {
      content: '';
      position: absolute;
      top: -50%;
      right: -30%;
      width: 60%;
      height: 200%;
      background: rgba(255, 255, 255, 0.08);
      border-radius: 50%;
      transform: rotate(-15deg);
    }

    .header::after {
      content: '';
      position: absolute;
      bottom: -40%;
      left: -20%;
      width: 50%;
      height: 180%;
      background: rgba(255, 255, 255, 0.05);
      border-radius: 50%;
      transform: rotate(10deg);
    }

    .title {
      font-size: 28px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 8px;
      position: relative;
      z-index: 1;
      letter-spacing: -0.5px;
    }

    .subtitle {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.85);
      position: relative;
      z-index: 1;
    }

    .step-indicator {
      display: none;
    }

    .body {
      padding: 0 40px 40px;
    }

    /* 鍙屾爮甯冨眬 */
    .form-columns {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      align-items: start;
    }

    .form-col {
      min-width: 0;
    }

    /* 鎻愪氦鎸夐挳鍖哄煙 */
    .submit-area {
      margin-top: 8px;
      padding-top: 24px;
      border-top: 1px solid var(--border);
    }

    .btn-submit {
      background: linear-gradient(135deg, var(--success) 0%, #ff8f5a 100%);
      color: white;
      width: 100%;
      max-width: 400px;
      display: block;
      margin: 0 auto;
      box-shadow: 0 4px 16px rgba(255, 107, 53, 0.3);
      border: none;
      padding: 16px 32px;
      border-radius: 12px;
      font-size: 16px;
      font-weight: 600;
      font-family: inherit;
      cursor: pointer;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }

    .btn-submit svg {
      width: 20px;
      height: 20px;
    }

    .btn-submit:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(255, 107, 53, 0.4);
    }

    /* 涓婁紶鍖哄苟鎺� */
    .upload-row {
      grid-template-columns: 1fr 1fr;
    }

    .form-step {
      animation: fadeInUp 0.5s ease;
    }

    @keyframes fadeInUp {
      from {
        opacity: 0;
        transform: translateY(20px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .form-section {
      margin-bottom: 32px;
    }

    .section-title {
      font-size: 16px;
      font-weight: 600;
      color: var(--text-dark);
      margin-bottom: 20px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    /* .section-title::before {
      content: '';
      width: 4px;
      height: 20px;
      background: linear-gradient(180deg, var(--primary) 0%, var(--primary-light) 100%);
      border-radius: 2px;
    } */

    .form-group {
      margin-bottom: 20px;
      position: relative;
    }

    .form-group label {
      display: block;
      margin-bottom: 8px;
      font-weight: 500;
      font-size: 14px;
      color: var(--text-medium);
    }

    .form-group label .required {
      color: #ef4444;
      margin-left: 2px;
    }

    .input-wrapper {
      position: relative;
    }

    .input-wrapper::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 50%;
      width: 0;
      height: 2px;
      background: linear-gradient(90deg, var(--primary), var(--primary-light));
      transition: all 0.3s ease;
      transform: translateX(-50%);
      border-radius: 2px;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
      width: 100%;
      padding: 14px 16px;
      border: 2px solid var(--border);
      border-radius: 12px;
      font-size: 15px;
      font-family: inherit;
      color: var(--text-dark);
      background: var(--bg-light);
      outline: none;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .form-group input::placeholder,
    .form-group textarea::placeholder {
      color: var(--text-light);
    }

    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
      border-color: var(--primary);
      background: #ffffff;
      box-shadow: 0 0 0 4px var(--primary-glow);
    }

    .form-group input:hover:not(:focus),
    .form-group select:hover:not(:focus),
    .form-group textarea:hover:not(:focus) {
      border-color: var(--primary-light);
    }

    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

    .upload-box {
      border: 2px dashed var(--border);
      padding: 32px 20px;
      text-align: center;
      border-radius: 12px;
      cursor: pointer;
      background: var(--bg-light);
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
    }

    .upload-box::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, var(--primary-bg) 0%, transparent 100%);
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .upload-box:hover {
      border-color: var(--primary);
      background: #ffffff;
    }

    .upload-box:hover::before {
      opacity: 1;
    }

    .upload-box.dragover {
      border-color: var(--primary);
      background: #ffffff;
      box-shadow: 0 0 0 4px var(--primary-glow);
    }

    .upload-icon {
      width: 48px;
      height: 48px;
      margin: 0 auto 12px;
      background: linear-gradient(135deg, var(--primary-bg) 0%, rgba(90, 110, 124, 0.15) 100%);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      position: relative;
      z-index: 1;
    }

    .upload-icon svg {
      width: 24px;
      height: 24px;
      stroke: var(--primary);
    }

    .upload-text {
      font-size: 14px;
      color: var(--text-medium);
      position: relative;
      z-index: 1;
    }

    .upload-text span {
      color: var(--primary);
      font-weight: 600;
    }

    .upload-hint {
      font-size: 12px;
      color: var(--text-light);
      margin-top: 6px;
      position: relative;
      z-index: 1;
    }

    .btn {
      padding: 16px 32px;
      border: none;
      border-radius: 12px;
      font-size: 15px;
      font-weight: 600;
      font-family: inherit;
      cursor: pointer;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }

    .btn svg {
      width: 18px;
      height: 18px;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
      color: white;
      flex: 1;
      box-shadow: 0 4px 16px var(--primary-glow);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px var(--primary-glow);
    }

    .btn-primary:active {
      transform: translateY(0);
    }

    .btn-secondary {
      background: var(--bg-light);
      color: var(--text-medium);
      border: 2px solid var(--border);
    }

    .btn-secondary:hover {
      background: #ffffff;
      border-color: var(--primary-light);
      color: var(--primary);
    }


    .success-msg {
      text-align: center;
      padding: 60px 40px;
      display: none;
      animation: fadeInUp 0.5s ease;
    }

    .success-icon {
      width: 80px;
      height: 80px;
      margin: 0 auto 24px;
      background: linear-gradient(135deg, var(--success) 0%, #ff6b35 100%);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 8px 32px rgba(16, 185, 129, 0.3);
    }

    .success-icon svg {
      width: 40px;
      height: 40px;
      stroke: white;
      stroke-width: 3;
    }

    .success-title {
      font-size: 24px;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 12px;
    }

    .success-text {
      font-size: 15px;
      color: var(--text-medium);
      line-height: 1.6;
    }

    /* Checkbox & Radio Custom */
    .checkbox-group,
    .radio-group {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .checkbox-item,
    .radio-item {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 12px 16px;
      background: var(--bg-light);
      border: 2px solid var(--border);
      border-radius: 10px;
      cursor: pointer;
      transition: all 0.3s ease;
      flex: 1;
      min-width: 120px;
    }

    .checkbox-item:hover,
    .radio-item:hover {
      border-color: var(--primary-light);
      background: #ffffff;
    }

    .checkbox-item.checked,
    .radio-item.checked {
      border-color: var(--primary);
      background: var(--primary-bg);
    }

    .checkbox-item input,
    .radio-item input {
      display: none;
    }

    .checkbox-custom,
    .radio-custom {
      width: 20px;
      height: 20px;
      border: 2px solid var(--border);
      border-radius: 4px;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: all 0.2s ease;
      flex-shrink: 0;
    }

    .radio-custom {
      border-radius: 50%;
    }

    .checkbox-item.checked .checkbox-custom,
    .radio-item.checked .radio-custom {
      background: var(--primary);
      border-color: var(--primary);
    }

    .checkbox-custom svg,
    .radio-custom::after {
      opacity: 0;
      transition: opacity 0.2s ease;
    }

    .checkbox-item.checked .checkbox-custom svg {
      opacity: 1;
    }

    .radio-custom::after {
      content: '';
      width: 8px;
      height: 8px;
      background: white;
      border-radius: 50%;
    }

    .radio-item.checked .radio-custom::after {
      opacity: 1;
    }

    .checkbox-label,
    .radio-label {
      font-size: 14px;
      color: var(--text-medium);
      font-weight: 500;
    }

    /* Responsive */
    @media (max-width: 900px) {
      .form-columns {
        grid-template-columns: 1fr;
        gap: 0;
      }
    }

    @media (max-width: 640px) {
      .form-header {
        padding: 30px 24px 30px;
      }

      .form-title {
        font-size: 22px;
      }

      .form-body {
        padding: 0 20px 28px;
      }

      .form-row {
        grid-template-columns: 1fr;
        gap: 16px;
      }

      .upload-row {
        grid-template-columns: 1fr;
      }

      .btn-submit {
        max-width: 100%;
      }
    }
   /* Progress bar */
    .progress-bar {
      position: absolute;
      top: 0;
      left: 0;
      height: 4px;
      background: linear-gradient(90deg, var(--primary), var(--primary-light));
      transition: width 0.4s ease;
      border-radius: 0 0 4px 4px;
    }

     /* 搴曢儴 */
        .footer {
             max-width: 1352px;
            margin: 0 auto;
            margin-top: 3rem;
            padding: 2rem 0 3rem;
            border-top: 1px solid #eef2f8;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 2rem;
        }
        .footer-col p {
            color: #8aa2b8;
            font-size: 0.8rem;
            margin-top: 0.5rem;
        }
        .footer-links {
            display: flex;
            gap: 2rem;
        }
        .footer-links a {
            text-decoration: none;
            color: #5a6e7c;
            font-size: 0.8rem;
        }
    
    
    
    
    
    
    
    
    @media (max-width: 768px) {
        .footer {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 1.2rem;
        padding: 1.5rem 0;
        justify-content: center;
    }

    .footer-links {
        flex-wrap: wrap;
        gap: 10px 18px;
        justify-content: center;
    }

    .footer-links a {
        font-size: 12px;
    }

    /* 涓诲唴瀹瑰尯 */
    .main-container {
        padding: 10px;
        gap: 10px;
    }

    .sidebar {
        width: 100%;
    }

    .sidebar-nav {
        display: flex;
        flex-wrap: wrap;
        padding: 4px;
        gap: 4px;
    }

    .sidebar-nav .nav-item {
        flex: 1 1 calc(50% - 4px);
        min-width: 0;
        text-align: center;
        padding: 10px 6px;
        font-size: 12px;
        border-left: none;
        border-bottom: 2px solid transparent;
        border-radius: 6px;
    }

    .sidebar-nav .nav-item.active {
        border-left: none;
        border-bottom-color: #5a6e7c;
        background: #e8f0fe;
    }

    .sidebar-nav .nav-item:hover {
        background-color: #f0f4ff;
    }

    /* 鍐呭鍖� */
    .content-panel {
        padding: 14px;
    }

    .content-title {
        font-size: 16px;
    }

    .content-text {
        font-size: 12px;
    }

    .content-text p {
        margin-bottom: 8px;
    }

    /* 椤甸潰鏍囬鍖� */
    .page-header {
        padding: 20px 0;
        border-radius: 8px;
    }

    .page-header h1 {
        font-size: 1.2rem;
    }

    .page-header p {
        font-size: 0.72rem;
    }
}

/* 鈹€鈹€ 鎵嬫満绔� 550px 鈹€鈹€ */
@media (max-width: 550px) {
    /* 闅愯棌妗岄潰绔鑸紝鏄剧ず绉诲姩绔彍鍗曟寜閽� */
    .navbar {
        display: none !important;
    }

    .mobile-menu-btn {
        display: block;
    }

    /* 缃戞牸寮哄埗鍗曞垪 */
    .brand-category-grid,
    .featured-grid,
    .rank-cards-container {
        grid-template-columns: 1fr !important;
    }

    /* 椤甸潰鏍囬鍖鸿繘涓€姝ョ缉灏� */
    .page-header {
        padding: 16px 0;
    }

    .page-header h1 {
        font-size: 1.05rem;
    }

    .page-header p {
        font-size: 0.68rem;
    }

    /* 渚ф爮瀵艰埅锛氬叏瀹界旱鍚戝崟鍒� */
    .sidebar-nav {
        flex-direction: column;
    }

    .sidebar-nav .nav-item {
        flex: none;
        width: 100%;
        border-bottom: 1px solid #eef2f8;
        border-left: 3px solid transparent !important;
        border-radius: 0;
        padding: 10px 14px;
        text-align: left;
    }

    .sidebar-nav .nav-item.active {
        border-bottom: 1px solid #eef2f8;
        border-left: 3px solid #5a6e7c !important;
        background: #e8f0fe;
    }

    /* 鍐呭鍖哄唴杈硅窛 */
    .content-panel {
        padding: 12px 10px;
    }

    .content-title {
        font-size: 15px;
    }

    /* 椤佃剼閾炬帴闂磋窛 */
    .footer-links {
        gap: 8px 12px;
    }
}