/* Global Resets & High-Contrast Light Theme Baseline */
    :root {
      --primary: #4f46e5;
      --primary-dark: #3730a3;
      --accent-pink: #ec4899;
      --accent-cyan: #06b6d4;
      --accent-amber: #f59e0b;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --bg-alt: #eff6ff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --border-color: #cbd5e1;
      --border-bold: #0f172a;
      --shadow-bold: 5px 5px 0px #0f172a;
      --shadow-hover: 8px 8px 0px #4f46e5;
      --radius: 12px;
      --container-max: 1200px;
    }

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

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

    /* Container Utility */
    .container {
      width: 100%;
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 20px;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    /* Header & Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 2px solid var(--border-bold);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .brand-group {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .brand-logo {
      height: 40px;
      display: flex;
      align-items: center;
    }

    .brand-logo img {
      max-height: 40px;
      width: auto;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0; /* Strictly set as requested */
    }

    .nav-links a {
      padding: 8px 14px;
      font-weight: 600;
      font-size: 0.95rem;
      color: var(--text-main);
      transition: all 0.2s ease;
      border-radius: 6px;
    }

    .nav-links a:hover {
      background-color: #e0e7ff;
      color: var(--primary);
    }

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

    /* Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-weight: 700;
      font-size: 0.95rem;
      border-radius: 8px;
      border: 2px solid var(--border-bold);
      box-shadow: var(--shadow-bold);
      cursor: pointer;
      transition: all 0.15s ease-in-out;
      background-color: #ffffff;
      color: var(--text-main);
    }

    .btn:hover {
      transform: translate(-2px, -2px);
      box-shadow: var(--shadow-hover);
    }

    .btn:active {
      transform: translate(0, 0);
      box-shadow: 2px 2px 0px #0f172a;
    }

    .btn-primary {
      background-color: var(--primary);
      color: #ffffff;
    }

    .btn-accent {
      background-color: var(--accent-pink);
      color: #ffffff;
    }

    .btn-warning {
      background-color: var(--accent-amber);
      color: var(--border-bold);
    }

    /* Hero Section (No Images Allowed) */
    .hero-section {
      padding: 70px 0 50px 0;
      background: linear-gradient(135deg, #e0e7ff 0%, #fae8ff 50%, #f0fdf4 100%);
      border-bottom: 2px solid var(--border-bold);
      position: relative;
    }

    .hero-badge {
      display: inline-block;
      padding: 6px 16px;
      background: #ffffff;
      border: 2px solid var(--border-bold);
      box-shadow: 3px 3px 0px var(--border-bold);
      border-radius: 20px;
      font-weight: 800;
      font-size: 0.85rem;
      color: var(--primary);
      margin-bottom: 20px;
      text-transform: uppercase;
    }

    .hero-title {
      font-size: 2.5rem;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title span {
      background: linear-gradient(90deg, var(--primary), var(--accent-pink));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      max-width: 800px;
      margin-bottom: 30px;
      font-weight: 500;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 40px;
    }

    .hero-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      padding-top: 20px;
      border-top: 2px dashed #cbd5e1;
    }

    .tag-chip {
      background: #ffffff;
      border: 1px solid var(--border-bold);
      padding: 4px 10px;
      border-radius: 6px;
      font-size: 0.82rem;
      font-weight: 600;
      color: var(--text-main);
    }

    /* Section Component Defaults */
    .section-padding {
      padding: 70px 0;
      border-bottom: 1px solid #e2e8f0;
    }

    .section-title-wrap {
      text-align: center;
      max-width: 750px;
      margin: 0 auto 50px auto;
    }

    .section-sub {
      display: inline-block;
      font-weight: 800;
      color: var(--primary);
      text-transform: uppercase;
      font-size: 0.85rem;
      letter-spacing: 1px;
      margin-bottom: 8px;
    }

    .section-title {
      font-size: 2rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .section-intro {
      font-size: 1rem;
      color: var(--text-muted);
    }

    /* Grid Layouts */
    .grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
    .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
    .grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

    /* Cards (Vibrant Contrast Theme) */
    .card {
      background: var(--bg-card);
      border: 2px solid var(--border-bold);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-bold);
      transition: all 0.2s ease;
    }

    .card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }

    .card-icon-box {
      width: 48px;
      height: 48px;
      background: #e0e7ff;
      border: 2px solid var(--border-bold);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      color: var(--primary);
      font-size: 1.2rem;
      margin-bottom: 16px;
    }

    .card-title {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .card-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* Metric Cards */
    .metric-card {
      background: #ffffff;
      border: 2px solid var(--border-bold);
      border-radius: var(--radius);
      padding: 20px;
      text-align: center;
      box-shadow: var(--shadow-bold);
    }

    .metric-num {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary);
    }

    .metric-label {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-muted);
    }

    /* Table Component */
    .table-wrapper {
      overflow-x: auto;
      border: 2px solid var(--border-bold);
      border-radius: var(--radius);
      box-shadow: var(--shadow-bold);
      background: #ffffff;
    }

    .custom-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }

    .custom-table th, .custom-table td {
      padding: 14px 18px;
      border-bottom: 1px solid #cbd5e1;
      font-size: 0.95rem;
    }

    .custom-table th {
      background-color: #f1f5f9;
      font-weight: 800;
      color: var(--text-main);
      border-bottom: 2px solid var(--border-bold);
    }

    .custom-table tr:last-child td {
      border-bottom: none;
    }

    .highlight-row {
      background-color: #eff6ff;
      font-weight: 700;
    }

    /* FAQ Accordion */
    .faq-container {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      background: #ffffff;
      border: 2px solid var(--border-bold);
      border-radius: var(--radius);
      box-shadow: 4px 4px 0px var(--border-bold);
      overflow: hidden;
    }

    .faq-question {
      padding: 18px 24px;
      font-weight: 700;
      font-size: 1.05rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #ffffff;
      user-select: none;
    }

    .faq-question:hover {
      background-color: #f8fafc;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #f1f5f9;
      color: var(--text-muted);
      font-size: 0.95rem;
      padding: 0 24px;
      border-top: 0px solid var(--border-bold);
    }

    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 16px 24px;
      border-top: 2px solid var(--border-bold);
    }

    .faq-item.active .faq-icon {
      transform: rotate(180deg);
    }

    .faq-icon {
      transition: transform 0.2s ease;
      font-size: 1.2rem;
      font-weight: 800;
    }

    /* Form Section */
    .form-card {
      background: #ffffff;
      border: 2px solid var(--border-bold);
      border-radius: var(--radius);
      padding: 36px;
      box-shadow: 6px 6px 0px var(--border-bold);
    }

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

    .form-label {
      display: block;
      font-weight: 700;
      margin-bottom: 8px;
      font-size: 0.95rem;
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 16px;
      border: 2px solid var(--border-bold);
      border-radius: 8px;
      font-size: 0.95rem;
      background-color: #f8fafc;
      outline: none;
      font-family: inherit;
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      background-color: #ffffff;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
    }

    .form-textarea {
      resize: vertical;
      min-height: 120px;
    }

    /* Footer Layout */
    .site-footer {
      background-color: #0f172a;
      color: #f8fafc;
      padding: 60px 0 30px 0;
      border-top: 3px solid var(--border-bold);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      font-size: 1.1rem;
      margin-bottom: 20px;
      color: #ffffff;
      border-left: 4px solid var(--accent-pink);
      padding-left: 10px;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links a {
      color: #cbd5e1;
      font-size: 0.9rem;
      transition: color 0.2s ease;
    }

    .footer-links a:hover {
      color: #ffffff;
      text-decoration: underline;
    }

    .friendship-box {
      border-top: 1px solid #334155;
      padding-top: 20px;
      margin-top: 20px;
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 0.88rem;
    }

    .friendship-box a {
      color: #94a3b8;
    }

    .friendship-box a:hover {
      color: var(--accent-cyan);
    }

    .footer-bottom {
      border-top: 1px solid #334155;
      padding-top: 25px;
      text-align: center;
      font-size: 0.88rem;
      color: #94a3b8;
    }

    /* Floating Widget */
    .float-kefu {
      position: fixed;
      right: 20px;
      bottom: 20px;
      z-index: 999;
      background: #ffffff;
      border: 2px solid var(--border-bold);
      border-radius: 12px;
      padding: 10px;
      box-shadow: 4px 4px 0px var(--border-bold);
      text-align: center;
      width: 130px;
    }

    .float-kefu img {
      width: 100%;
      border-radius: 6px;
      margin-bottom: 6px;
      display: block;
    }

    .float-kefu span {
      font-size: 0.8rem;
      font-weight: 800;
      color: var(--text-main);
      display: block;
    }

    /* Mobile Responsive Modifications */
    @media (max-width: 992px) {
      .grid-4 { grid-template-columns: repeat(2, 1fr); }
      .grid-3 { grid-template-columns: repeat(1, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }

    @media (max-width: 768px) {
      .hero-title { font-size: 1.8rem; }
      .grid-2 { grid-template-columns: 1fr; }
      .grid-4 { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
      .nav-links { display: none; }
      .nav-links.mobile-open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        border-bottom: 2px solid var(--border-bold);
        padding: 16px;
        box-shadow: 0 10px 15px rgba(0,0,0,0.1);
      }
      .mobile-menu-toggle {
        display: block;
        font-size: 1.5rem;
        background: none;
        border: none;
        cursor: pointer;
      }
    }

    @media (min-width: 769px) {
      .mobile-menu-toggle { display: none; }
    }