/* roulang page: index */
:root {
      --color-primary: #0F3E2E;
      --color-primary-light: #185a43;
      --color-accent: #00E575;
      --color-accent-hover: #00c765;
      --color-dark: #121619;
      --color-dark-surface: #1B2124;
      --color-bg-base: #F7F9F8;
      --color-bg-alt: #EDF1F0;
      --color-text-main: #0D1311;
      --color-text-body: #38423E;
      --color-text-muted: #6F7D77;
      --border-subtle: rgba(15, 62, 46, 0.08);
      --radius-sm: 4px;
      --radius-md: 8px;
      --radius-lg: 12px;
      --shadow-sm: 0 2px 4px rgba(0,0,0,0.02), 0 6px 12px -2px rgba(0,0,0,0.04);
      --shadow-md: 0 4px 6px rgba(0,0,0,0.03), 0 12px 24px -4px rgba(0,0,0,0.06);
      --shadow-lg: 0 10px 25px -5px rgba(0,0,0,0.08), 0 20px 32px -8px rgba(0,0,0,0.05);
      --font-stack: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: var(--font-stack);
      background-color: var(--color-bg-base);
      color: var(--color-text-body);
      line-height: 1.75;
      letter-spacing: 0.02em;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.2s ease;
    }

    button, input, select, textarea {
      font-family: inherit;
      font-size: inherit;
      color: inherit;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }

    /* TopBar */
    .top-bar {
      background-color: var(--color-dark);
      color: #9ba7a2;
      font-size: 0.8125rem;
      border-bottom: 1px solid rgba(255,255,255,0.06);
    }
    .top-bar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 38px;
    }
    .top-bar-meta {
      display: flex;
      gap: 1.5rem;
      align-items: center;
    }
    .top-bar-meta span {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
    }

    /* Header Nav */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-subtle);
      box-shadow: 0 2px 10px rgba(0,0,0,0.03);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 0.65rem;
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--color-primary);
      letter-spacing: -0.01em;
    }
    .brand-logo i {
      color: var(--color-accent);
      background: var(--color-primary);
      padding: 0.5rem;
      border-radius: var(--radius-sm);
      font-size: 1.1rem;
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 2rem;
      list-style: none;
    }
    .nav-link {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--color-text-main);
      position: relative;
      padding: 0.5rem 0;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--color-primary);
    }
    .nav-link.active::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--color-primary);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 1rem;
    }
    .nav-mobile-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--color-text-main);
      cursor: pointer;
    }

    /* Common Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      font-weight: 600;
      font-size: 0.95rem;
      padding: 0.75rem 1.6rem;
      border-radius: var(--radius-md);
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.25s ease;
      white-space: nowrap;
    }
    .btn-primary {
      background-color: var(--color-primary);
      color: #ffffff;
      border-color: var(--color-primary);
    }
    .btn-primary:hover {
      background-color: var(--color-primary-light);
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(15, 62, 46, 0.2);
    }
    .btn-accent {
      background-color: var(--color-accent);
      color: var(--color-dark);
      font-weight: 700;
    }
    .btn-accent:hover {
      background-color: var(--color-accent-hover);
      transform: translateY(-2px);
      box-shadow: 0 4px 14px rgba(0, 229, 117, 0.35);
    }
    .btn-outline {
      background: transparent;
      color: var(--color-primary);
      border-color: var(--color-primary);
    }
    .btn-outline:hover {
      background: rgba(15, 62, 46, 0.05);
      transform: translateY(-2px);
    }
    .btn-dark-outline {
      background: transparent;
      color: #ffffff;
      border-color: rgba(255, 255, 255, 0.2);
    }
    .btn-dark-outline:hover {
      border-color: var(--color-accent);
      color: var(--color-accent);
      background: rgba(0, 229, 117, 0.05);
    }

    /* Section Structure */
    section {
      padding: 5.5rem 0;
      position: relative;
    }
    .section-badge {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--color-primary);
      background: rgba(15, 62, 46, 0.08);
      padding: 0.3rem 0.8rem;
      border-radius: var(--radius-sm);
      margin-bottom: 0.85rem;
    }
    .section-title {
      font-size: 2.25rem;
      font-weight: 700;
      color: var(--color-text-main);
      line-height: 1.3;
      margin-bottom: 1.25rem;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--color-text-body);
      max-width: 780px;
      margin-bottom: 3rem;
      line-height: 1.8;
    }
    .text-center {
      text-align: center;
    }
    .text-center .section-desc {
      margin-left: auto;
      margin-right: auto;
    }

    /* Section 01: Hero Banner (自测选型短问卷视觉) */
    .hero-section {
      padding: 4.5rem 0 5.5rem;
      background: radial-gradient(circle at 100% 0%, rgba(0, 229, 117, 0.07) 0%, rgba(247, 249, 248, 0) 50%),
                  linear-gradient(180deg, #F0F4F2 0%, var(--color-bg-base) 100%);
      border-bottom: 1px solid var(--border-subtle);
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 3.5rem;
      align-items: center;
    }
    .hero-h1 {
      font-size: 2.75rem;
      font-weight: 800;
      color: var(--color-text-main);
      line-height: 1.25;
      margin-bottom: 1.5rem;
    }
    .hero-h1 span {
      color: var(--color-primary);
      position: relative;
    }
    .hero-h1 span::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 4px;
      width: 100%;
      height: 6px;
      background: rgba(0, 229, 117, 0.35);
      z-index: -1;
    }
    .hero-paragraph {
      font-size: 1.08rem;
      line-height: 1.8;
      color: var(--color-text-body);
      margin-bottom: 2rem;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      margin-bottom: 2.5rem;
    }
    .hero-tags {
      display: flex;
      align-items: center;
      gap: 1.5rem;
      font-size: 0.875rem;
      color: var(--color-text-muted);
    }
    .hero-tags i {
      color: var(--color-accent);
      margin-right: 0.3rem;
    }

    /* Hero Interactive Questionnaire Card */
    .quiz-card {
      background: #ffffff;
      border: 1px solid rgba(15, 62, 46, 0.12);
      border-radius: var(--radius-lg);
      padding: 2.2rem;
      box-shadow: var(--shadow-lg);
      position: relative;
    }
    .quiz-card-head {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 1.5rem;
      padding-bottom: 1rem;
      border-bottom: 1px solid var(--border-subtle);
    }
    .quiz-badge {
      font-size: 0.75rem;
      background: rgba(0, 229, 117, 0.15);
      color: var(--color-primary);
      font-weight: 700;
      padding: 0.25rem 0.6rem;
      border-radius: var(--radius-sm);
    }
    .quiz-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--color-text-main);
    }
    .quiz-step-title {
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--color-text-main);
      margin-bottom: 0.75rem;
      display: block;
    }
    .quiz-options {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 0.75rem;
      margin-bottom: 1.25rem;
    }
    .quiz-opt-btn {
      background: #F7F9F8;
      border: 1px solid rgba(15, 62, 46, 0.1);
      padding: 0.65rem 0.85rem;
      border-radius: var(--radius-sm);
      font-size: 0.875rem;
      text-align: left;
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 0.5rem;
      transition: all 0.2s ease;
    }
    .quiz-opt-btn:hover, .quiz-opt-btn.active {
      background: rgba(0, 229, 117, 0.1);
      border-color: var(--color-accent);
      color: var(--color-primary);
      font-weight: 600;
    }
    .quiz-result-preview {
      background: var(--color-bg-alt);
      border-radius: var(--radius-md);
      padding: 1.2rem;
      margin-top: 1.2rem;
    }
    .quiz-result-title {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--color-primary);
      margin-bottom: 0.5rem;
      display: flex;
      justify-content: space-between;
    }
    .quiz-result-metrics {
      display: flex;
      justify-content: space-between;
      font-size: 0.8rem;
      color: var(--color-text-muted);
      border-top: 1px dashed rgba(15, 62, 46, 0.15);
      padding-top: 0.6rem;
      margin-top: 0.6rem;
    }
    .quiz-result-metrics strong {
      color: var(--color-text-main);
    }

    /* Section 02: Brand Intro (技术底层图文) */
    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3.5rem;
      align-items: center;
    }
    .intro-visual {
      position: relative;
    }
    .intro-visual-img {
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-md);
      width: 100%;
      height: 420px;
      object-fit: cover;
    }
    .intro-stat-badge {
      position: absolute;
      bottom: -1.5rem;
      right: 1.5rem;
      background: var(--color-primary);
      color: #ffffff;
      padding: 1.25rem 1.75rem;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      border-left: 4px solid var(--color-accent);
    }
    .intro-stat-num {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--color-accent);
      line-height: 1;
      margin-bottom: 0.25rem;
    }
    .intro-stat-label {
      font-size: 0.825rem;
      color: #D1E0DA;
    }
    .intro-spec-list {
      list-style: none;
      margin: 1.75rem 0 2rem;
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }
    .intro-spec-item {
      display: flex;
      align-items: flex-start;
      gap: 0.85rem;
    }
    .intro-spec-item i {
      color: var(--color-primary);
      background: rgba(15, 62, 46, 0.1);
      padding: 0.4rem;
      border-radius: 50%;
      font-size: 0.85rem;
      margin-top: 0.2rem;
    }
    .intro-spec-item strong {
      color: var(--color-text-main);
    }

    /* Section 03: Core Metrics & Matrix (6项高密度栅格) */
    .metrics-section {
      background-color: var(--color-bg-alt);
    }
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.5rem;
    }
    .matrix-card {
      background: #ffffff;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 1.8rem;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      position: relative;
    }
    .matrix-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(15, 62, 46, 0.2);
    }
    .matrix-card-top {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 1.25rem;
    }
    .matrix-icon {
      width: 44px;
      height: 44px;
      border-radius: var(--radius-sm);
      background: rgba(15, 62, 46, 0.08);
      color: var(--color-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
    }
    .matrix-kpi-pill {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--color-primary);
      background: #E8F5EE;
      padding: 0.2rem 0.55rem;
      border-radius: 20px;
      border: 1px solid rgba(15, 62, 46, 0.1);
    }
    .matrix-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--color-text-main);
      margin-bottom: 0.65rem;
    }
    .matrix-desc {
      font-size: 0.925rem;
      color: var(--color-text-body);
      line-height: 1.65;
    }

    /* Section 04: Product Services (3列深度配置) */
    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    .product-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-subtle);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
    }
    .product-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
    }
    .product-cover-wrap {
      height: 200px;
      position: relative;
      overflow: hidden;
    }
    .product-cover {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .product-card:hover .product-cover {
      transform: scale(1.05);
    }
    .product-type-badge {
      position: absolute;
      top: 1rem;
      left: 1rem;
      background: rgba(15, 62, 46, 0.88);
      backdrop-filter: blur(4px);
      color: var(--color-accent);
      font-size: 0.75rem;
      font-weight: 700;
      padding: 0.25rem 0.65rem;
      border-radius: var(--radius-sm);
    }
    .product-body {
      padding: 1.75rem;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .product-name {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--color-text-main);
      margin-bottom: 0.75rem;
    }
    .product-desc {
      font-size: 0.92rem;
      color: var(--color-text-body);
      line-height: 1.65;
      margin-bottom: 1.5rem;
      flex: 1;
    }
    .product-specs-list {
      list-style: none;
      border-top: 1px solid var(--border-subtle);
      padding-top: 1.25rem;
      margin-bottom: 1.5rem;
      display: flex;
      flex-direction: column;
      gap: 0.5rem;
    }
    .product-specs-list li {
      font-size: 0.85rem;
      color: var(--color-text-muted);
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    .product-specs-list li i {
      color: var(--color-accent);
    }

    /* Section 05: Dark Theme Philosophy (深色调实战数据对抗) */
    .dark-section {
      background-color: var(--color-dark);
      color: #ffffff;
      padding: 6.5rem 0;
      position: relative;
      background-image: radial-gradient(circle at 10% 20%, rgba(0, 229, 117, 0.05) 0%, transparent 40%),
                        radial-gradient(circle at 90% 80%, rgba(15, 62, 46, 0.3) 0%, transparent 45%);
    }
    .dark-section .section-badge {
      background: rgba(0, 229, 117, 0.15);
      color: var(--color-accent);
    }
    .dark-section .section-title {
      color: #ffffff;
    }
    .dark-section .section-desc {
      color: #A3B2AC;
    }
    .dark-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3.5rem;
      align-items: center;
    }
    .dark-card-box {
      background: var(--color-dark-surface);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-lg);
      padding: 2.25rem;
    }
    .algo-pipeline {
      display: flex;
      flex-direction: column;
      gap: 1.25rem;
    }
    .pipeline-step {
      display: flex;
      gap: 1.25rem;
      align-items: flex-start;
      padding: 1rem;
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid rgba(255, 255, 255, 0.04);
      border-radius: var(--radius-md);
    }
    .pipeline-idx {
      font-size: 0.85rem;
      font-weight: 800;
      color: var(--color-accent);
      background: rgba(0, 229, 117, 0.1);
      width: 32px;
      height: 32px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius-sm);
      flex-shrink: 0;
    }
    .pipeline-body h4 {
      font-size: 1rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 0.3rem;
    }
    .pipeline-body p {
      font-size: 0.875rem;
      color: #92A39D;
      line-height: 1.6;
    }

    /* Section 06: Data Comparison (双轨纵向参数对决) */
    .compare-table-wrap {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-subtle);
      box-shadow: var(--shadow-md);
      overflow-x: auto;
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 680px;
    }
    .compare-table th {
      padding: 1.5rem 1.75rem;
      font-size: 1rem;
      text-align: left;
      border-bottom: 2px solid var(--border-subtle);
    }
    .compare-table th.col-metric {
      width: 28%;
      color: var(--color-text-main);
      font-weight: 700;
    }
    .compare-table th.col-trad {
      width: 36%;
      color: #8C9993;
      background: #FAFBFA;
    }
    .compare-table th.col-ai {
      width: 36%;
      color: var(--color-primary);
      background: rgba(0, 229, 117, 0.08);
      border-top: 3px solid var(--color-accent);
    }
    .compare-table td {
      padding: 1.25rem 1.75rem;
      font-size: 0.93rem;
      border-bottom: 1px solid var(--border-subtle);
    }
    .compare-table td.col-trad {
      background: #FAFBFA;
      color: #63706B;
    }
    .compare-table td.col-ai {
      background: rgba(0, 229, 117, 0.04);
      color: var(--color-text-main);
      font-weight: 600;
    }
    .compare-table td.col-ai i {
      color: var(--color-accent);
      margin-right: 0.5rem;
    }

    /* Section 07: User Stories & Milestones */
    .milestone-section {
      background: var(--color-bg-alt);
    }
    .timeline-wrap {
      position: relative;
      padding: 1rem 0;
    }
    .timeline-wrap::before {
      content: "";
      position: absolute;
      left: 50%;
      transform: translateX(-50%);
      top: 0;
      bottom: 0;
      width: 2px;
      background: rgba(15, 62, 46, 0.15);
    }
    .timeline-item {
      display: flex;
      justify-content: flex-end;
      padding-right: 50%;
      position: relative;
      margin-bottom: 2.5rem;
    }
    .timeline-item:nth-child(even) {
      justify-content: flex-start;
      padding-right: 0;
      padding-left: 50%;
    }
    .timeline-dot {
      position: absolute;
      left: 50%;
      top: 1.25rem;
      transform: translate(-50%, -50%);
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: var(--color-primary);
      border: 3px solid #ffffff;
      box-shadow: 0 0 0 2px var(--color-accent);
      z-index: 2;
    }
    .timeline-content {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-subtle);
      padding: 1.5rem 1.8rem;
      width: 90%;
      box-shadow: var(--shadow-sm);
    }
    .timeline-item:nth-child(odd) .timeline-content {
      margin-right: 2.5rem;
    }
    .timeline-item:nth-child(even) .timeline-content {
      margin-left: 2.5rem;
    }
    .timeline-date {
      display: inline-block;
      font-size: 0.78rem;
      font-weight: 700;
      color: var(--color-primary);
      background: rgba(15, 62, 46, 0.08);
      padding: 0.2rem 0.5rem;
      border-radius: var(--radius-sm);
      margin-bottom: 0.5rem;
    }
    .timeline-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--color-text-main);
      margin-bottom: 0.5rem;
    }
    .timeline-text {
      font-size: 0.88rem;
      color: var(--color-text-body);
      line-height: 1.65;
    }

    /* Section 08: Live Counter Bar */
    .counter-section {
      background: var(--color-primary);
      color: #ffffff;
      padding: 4rem 0;
    }
    .counter-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 2rem;
      text-align: center;
    }
    .counter-val {
      font-size: 3rem;
      font-weight: 800;
      color: var(--color-accent);
      line-height: 1.1;
      margin-bottom: 0.4rem;
      font-feature-settings: "tnum";
    }
    .counter-label {
      font-size: 0.95rem;
      font-weight: 600;
      color: #ffffff;
      margin-bottom: 0.25rem;
    }
    .counter-sub {
      font-size: 0.8rem;
      color: #A3C4B8;
    }

    /* Section 09: Testimonials */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    .testimonial-card {
      background: #ffffff;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 2rem;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testimonial-quote {
      font-size: 0.95rem;
      color: var(--color-text-body);
      line-height: 1.75;
      margin-bottom: 1.5rem;
      position: relative;
    }
    .testimonial-user {
      display: flex;
      align-items: center;
      gap: 0.85rem;
      border-top: 1px solid var(--border-subtle);
      padding-top: 1.25rem;
    }
    .testimonial-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--color-bg-alt);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--color-primary);
      font-weight: 700;
      border: 1px solid rgba(15, 62, 46, 0.1);
    }
    .user-meta h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--color-text-main);
    }
    .user-meta p {
      font-size: 0.8rem;
      color: var(--color-text-muted);
    }

    /* Section 10: News Digest */
    .news-section {
      background: var(--color-bg-alt);
    }
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    .news-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-subtle);
      padding: 1.8rem;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .news-date {
      font-size: 0.8rem;
      color: var(--color-text-muted);
      margin-bottom: 0.75rem;
      display: flex;
      align-items: center;
      gap: 0.4rem;
    }
    .news-heading {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--color-text-main);
      margin-bottom: 0.85rem;
      line-height: 1.45;
    }
    .news-summary {
      font-size: 0.9rem;
      color: var(--color-text-body);
      line-height: 1.7;
      margin-bottom: 1.5rem;
      flex: 1;
    }
    .news-link {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--color-primary);
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
    }
    .news-link:hover {
      color: var(--color-accent-hover);
    }

    /* Section 11: FAQ Accordion */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .faq-header {
      width: 100%;
      text-align: left;
      padding: 1.35rem 1.6rem;
      background: transparent;
      border: none;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--color-text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 1rem;
    }
    .faq-icon {
      color: var(--color-primary);
      font-size: 0.9rem;
      transition: transform 0.3s ease;
      flex-shrink: 0;
    }
    .faq-body {
      padding: 0 1.6rem;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      font-size: 0.93rem;
      line-height: 1.75;
      color: var(--color-text-body);
    }
    .faq-item.active .faq-header {
      color: var(--color-primary);
      border-bottom: 1px solid var(--border-subtle);
    }
    .faq-item.active .faq-icon {
      transform: rotate(180deg);
    }
    .faq-item.active .faq-body {
      padding: 1.25rem 1.6rem 1.5rem;
      max-height: 400px;
    }

    /* Section 12: Conversion CTA Form */
    .cta-section {
      background: linear-gradient(135deg, #0F3E2E 0%, #071F17 100%);
      color: #ffffff;
      padding: 6rem 0;
    }
    .cta-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 4rem;
      align-items: center;
    }
    .cta-text-wrap h2 {
      font-size: 2.35rem;
      font-weight: 800;
      margin-bottom: 1.25rem;
      line-height: 1.3;
    }
    .cta-text-wrap p {
      font-size: 1.05rem;
      color: #B2C9C0;
      line-height: 1.8;
      margin-bottom: 2rem;
    }
    .cta-trust-items {
      display: flex;
      flex-direction: column;
      gap: 0.85rem;
    }
    .cta-trust-item {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      font-size: 0.92rem;
      color: #E1EFEA;
    }
    .cta-trust-item i {
      color: var(--color-accent);
    }

    .form-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 2.5rem;
      box-shadow: var(--shadow-lg);
      color: var(--color-text-main);
    }
    .form-card-title {
      font-size: 1.35rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
    }
    .form-card-sub {
      font-size: 0.88rem;
      color: var(--color-text-muted);
      margin-bottom: 1.5rem;
    }
    .form-group {
      margin-bottom: 1.25rem;
    }
    .form-label {
      display: block;
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 0.4rem;
    }
    .form-input, .form-select {
      width: 100%;
      padding: 0.75rem 0.95rem;
      border: 1px solid #D5DDD9;
      border-radius: var(--radius-sm);
      background: #FDFDFD;
      outline: none;
      transition: border-color 0.2s ease;
    }
    .form-input:focus, .form-select:focus {
      border-color: var(--color-primary);
      box-shadow: 0 0 0 3px rgba(15, 62, 46, 0.1);
    }
    .form-submit-btn {
      width: 100%;
      margin-top: 0.75rem;
    }
    .form-tip {
      font-size: 0.75rem;
      color: var(--color-text-muted);
      text-align: center;
      margin-top: 0.85rem;
    }

    /* Global Footer */
    .site-footer {
      background-color: var(--color-dark);
      color: #A6B4AF;
      padding: 5rem 0 2.5rem;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.88rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
      gap: 3rem;
      margin-bottom: 3.5rem;
    }
    .footer-brand {
      display: flex;
      align-items: center;
      gap: 0.6rem;
      font-size: 1.25rem;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 1.2rem;
    }
    .footer-brand i {
      color: var(--color-accent);
    }
    .footer-brief {
      line-height: 1.75;
      margin-bottom: 1.5rem;
      max-width: 380px;
    }
    .footer-col-title {
      font-size: 1rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 1.25rem;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 0.75rem;
    }
    .footer-links a:hover {
      color: var(--color-accent);
    }
    .footer-contact-info {
      display: flex;
      flex-direction: column;
      gap: 0.85rem;
      line-height: 1.6;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 2rem;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 1.2rem;
      font-size: 0.82rem;
      color: #7D8E87;
    }
    .footer-cert-tags {
      display: flex;
      gap: 1.5rem;
    }

    /* Success Toast */
    .toast-notice {
      position: fixed;
      top: 20px;
      right: 20px;
      background: var(--color-primary);
      color: #ffffff;
      padding: 1rem 1.5rem;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      border-left: 4px solid var(--color-accent);
      z-index: 2000;
      display: none;
      align-items: center;
      gap: 0.75rem;
    }

    /* Responsive Breakdown */
    @media (max-width: 1024px) {
      .hero-grid, .intro-grid, .dark-grid, .cta-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
      }
      .matrix-grid, .products-grid, .testimonials-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .counter-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2.5rem;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2.5rem;
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .nav-menu {
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 1.5rem;
        gap: 1.25rem;
        border-bottom: 1px solid var(--border-subtle);
        display: none;
      }
      .nav-menu.show {
        display: flex;
      }
      .nav-mobile-toggle {
        display: block;
      }
      .nav-cta-btn {
        display: none;
      }
      .hero-h1 {
        font-size: 2.1rem;
      }
      .section-title {
        font-size: 1.85rem;
      }
      .matrix-grid, .products-grid, .testimonials-grid, .news-grid {
        grid-template-columns: 1fr;
      }
      .counter-grid {
        grid-template-columns: 1fr;
      }
      .timeline-wrap::before {
        left: 20px;
      }
      .timeline-item {
        padding-right: 0;
        padding-left: 48px;
        justify-content: flex-start;
      }
      .timeline-item:nth-child(even) {
        padding-left: 48px;
      }
      .timeline-dot {
        left: 20px;
      }
      .timeline-item:nth-child(odd) .timeline-content,
      .timeline-item:nth-child(even) .timeline-content {
        margin: 0;
        width: 100%;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .quiz-options {
        grid-template-columns: 1fr;
      }
    }