/* roulang page: index */
:root {
      --color-primary: #0F52BA;
      --color-primary-dark: #0A3A85;
      --color-accent: #00A86B;
      --color-alert: #FF5A36;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --bg-dark: #0B132B;
      --bg-dark-card: #142042;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --text-light: #E2E8F0;
      --border-color: rgba(226, 232, 240, 0.85);
      --border-dark: rgba(255, 255, 255, 0.12);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --shadow-sm: 0 2px 8px rgba(15, 82, 186, 0.04);
      --shadow-md: 0 4px 20px -2px rgba(15, 82, 186, 0.08);
      --shadow-lg: 0 12px 32px -4px rgba(15, 82, 186, 0.12);
      --container-max: 1200px;
      --font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
    }

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

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

    body {
      font-family: var(--font-family);
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.75;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }

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

    button, input, select, textarea {
      font-family: inherit;
      font-size: 1rem;
    }

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.25rem;
      padding-right: 1.25rem;
    }

    /* 顶部辅助条与主导航 */
    .top-bar {
      background-color: #07101E;
      color: #94A3B8;
      font-size: 0.8125rem;
      padding: 0.5rem 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 0.75rem;
    }

    .top-bar-status {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
    }

    .status-dot {
      width: 8px;
      height: 8px;
      background-color: var(--color-accent);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--color-accent);
      animation: pulseDot 2s infinite ease-in-out;
    }

    @keyframes pulseDot {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(0.85); }
    }

    .top-bar-contact {
      display: flex;
      gap: 1.5rem;
    }

    header.site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03);
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 4.5rem;
    }

    .logo-area {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      font-weight: 700;
      font-size: 1.35rem;
      color: var(--color-primary);
      letter-spacing: -0.02em;
    }

    .logo-icon {
      width: 2.25rem;
      height: 2.25rem;
      background: linear-gradient(135deg, var(--color-primary), #3b82f6);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 800;
      font-size: 1.1rem;
      box-shadow: 0 4px 10px rgba(15, 82, 186, 0.3);
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 1.75rem;
    }

    .main-nav a {
      font-size: 0.9375rem;
      color: var(--text-main);
      font-weight: 500;
      position: relative;
      padding: 0.25rem 0;
    }

    .main-nav a:hover,
    .main-nav a.active {
      color: var(--color-primary);
    }

    .main-nav a::after {
      content: "";
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--color-primary);
      transition: width 0.25s ease;
    }

    .main-nav a:hover::after,
    .main-nav a.active::after {
      width: 100%;
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 1rem;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      font-size: 0.9375rem;
      padding: 0.6875rem 1.4rem;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: all 0.25s ease;
      border: 1px solid transparent;
      line-height: 1.25;
      text-align: center;
      white-space: nowrap;
    }

    .btn-primary {
      background-color: var(--color-primary);
      color: #fff;
      box-shadow: 0 4px 12px rgba(15, 82, 186, 0.25);
    }

    .btn-primary:hover {
      background-color: var(--color-primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(15, 82, 186, 0.35);
    }

    .btn-accent {
      background-color: var(--color-accent);
      color: #fff;
      box-shadow: 0 4px 12px rgba(0, 168, 107, 0.25);
    }

    .btn-accent:hover {
      background-color: #008f5a;
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(0, 168, 107, 0.35);
    }

    .btn-outline {
      background-color: transparent;
      color: var(--color-primary);
      border-color: var(--color-primary);
    }

    .btn-outline:hover {
      background-color: rgba(15, 82, 186, 0.05);
      transform: translateY(-2px);
    }

    .btn-outline-white {
      background-color: transparent;
      color: #FFFFFF;
      border-color: rgba(255, 255, 255, 0.4);
    }

    .btn-outline-white:hover {
      background-color: rgba(255, 255, 255, 0.1);
      border-color: #FFFFFF;
      transform: translateY(-2px);
    }

    /* 通用板块外框排版 */
    section {
      padding: 5.5rem 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 3.5rem;
    }

    .section-badge {
      display: inline-block;
      text-transform: uppercase;
      font-size: 0.75rem;
      letter-spacing: 0.1em;
      font-weight: 700;
      color: var(--color-primary);
      background-color: rgba(15, 82, 186, 0.08);
      padding: 0.35rem 0.85rem;
      border-radius: 9999px;
      margin-bottom: 0.85rem;
    }

    .section-title {
      font-size: 2.125rem;
      font-weight: 700;
      line-height: 1.35;
      color: var(--text-main);
      margin-bottom: 1rem;
      letter-spacing: -0.01em;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.75;
    }

    /* 1. Hero 裂变激励与首屏综合区 */
    #hero {
      padding: 4.5rem 0 5.5rem;
      background: radial-gradient(circle at top right, rgba(15, 82, 186, 0.08), transparent 50%),
                  radial-gradient(circle at bottom left, rgba(0, 168, 107, 0.06), transparent 40%),
                  #ffffff;
      border-bottom: 1px solid var(--border-color);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 3rem;
      align-items: center;
    }

    .hero-content h1 {
      font-size: 2.85rem;
      line-height: 1.25;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 1.25rem;
      letter-spacing: -0.02em;
    }

    .hero-content h1 span {
      color: var(--color-primary);
      display: inline-block;
    }

    .hero-lead {
      font-size: 1.075rem;
      color: var(--text-muted);
      margin-bottom: 1.75rem;
      line-height: 1.8;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      margin-bottom: 2rem;
    }

    .hero-badges-row {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 1.25rem;
      font-size: 0.875rem;
      color: var(--text-muted);
      padding-top: 1.25rem;
      border-top: 1px solid var(--border-color);
    }

    .hero-badges-row span {
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
    }

    .hero-fission-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 2rem;
      box-shadow: var(--shadow-lg);
      position: relative;
      overflow: hidden;
    }

    .hero-fission-box::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    }

    .fission-header {
      margin-bottom: 1.25rem;
    }

    .fission-tag {
      font-size: 0.75rem;
      background: #FFF1EE;
      color: var(--color-alert);
      font-weight: 700;
      padding: 0.25rem 0.6rem;
      border-radius: var(--radius-sm);
      display: inline-block;
      margin-bottom: 0.5rem;
    }

    .fission-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 0.35rem;
    }

    .fission-reward-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    .progress-module {
      margin: 1.5rem 0;
      background: var(--bg-light);
      padding: 1rem;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }

    .progress-labels {
      display: flex;
      justify-content: space-between;
      font-size: 0.8125rem;
      font-weight: 600;
      margin-bottom: 0.5rem;
      color: var(--text-main);
    }

    .progress-bar-bg {
      height: 10px;
      background: #E2E8F0;
      border-radius: 9999px;
      overflow: hidden;
      position: relative;
    }

    .progress-bar-fill {
      height: 100%;
      width: 68%;
      background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
      border-radius: 9999px;
    }

    .fission-steps-mini {
      display: flex;
      justify-content: space-between;
      margin-top: 0.75rem;
      font-size: 0.75rem;
      color: var(--text-muted);
    }

    .fission-form {
      display: flex;
      flex-direction: column;
      gap: 0.75rem;
    }

    .input-box {
      width: 100%;
      padding: 0.75rem 1rem;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      outline: none;
      transition: all 0.2s ease;
      background-color: #FAFAFA;
      font-size: 0.9375rem;
    }

    .input-box:focus {
      background-color: #FFFFFF;
      border-color: var(--color-primary);
      box-shadow: 0 0 0 3px rgba(15, 82, 186, 0.12);
    }

    /* 2. 行业选址痛点诊断区 */
    #pain-points {
      background-color: #F1F5F9;
    }

    .pain-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 1.75rem;
    }

    .pain-card {
      background: #FFFFFF;
      border: 1px solid #E2E8F0;
      border-radius: var(--radius-md);
      padding: 2rem;
      position: relative;
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }

    .pain-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
    }

    .pain-tag-num {
      display: inline-block;
      font-size: 0.8125rem;
      font-weight: 700;
      color: var(--color-alert);
      background-color: rgba(255, 90, 54, 0.1);
      padding: 0.25rem 0.6rem;
      border-radius: var(--radius-sm);
      margin-bottom: 1rem;
    }

    .pain-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 0.75rem;
      color: #0F172A;
    }

    .pain-card p {
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 3. 品牌与技术架构介绍区 */
    #about {
      background-color: #FFFFFF;
    }

    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3.5rem;
      align-items: center;
    }

    .about-image-wrapper {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
    }

    .about-image-wrapper img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }

    .tech-specs-box {
      margin-top: 1.5rem;
      background: var(--bg-light);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1.25rem 1.5rem;
    }

    .spec-item {
      display: flex;
      justify-content: space-between;
      padding: 0.5rem 0;
      font-size: 0.875rem;
      border-bottom: 1px dashed #CBD5E1;
    }

    .spec-item:last-child {
      border-bottom: none;
    }

    .spec-label {
      color: var(--text-muted);
    }

    .spec-val {
      font-weight: 600;
      color: var(--color-primary);
    }

    /* 4. 核心算法与决策优势区 */
    #features {
      background-color: #F8FAFC;
    }

    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.75rem;
    }

    .feature-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 2.25rem 1.75rem;
      transition: all 0.3s ease;
      position: relative;
    }

    .feature-card:hover {
      border-color: var(--color-primary);
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .feature-icon-badge {
      width: 3.25rem;
      height: 3.25rem;
      border-radius: var(--radius-md);
      background: rgba(15, 82, 186, 0.08);
      color: var(--color-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      font-weight: 700;
      margin-bottom: 1.5rem;
    }

    .feature-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 0.85rem;
      color: var(--text-main);
    }

    .feature-card p {
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 5. 热门选址分析套件矩阵 */
    #products {
      background-color: #FFFFFF;
    }

    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
      align-items: stretch;
    }

    .pricing-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 2.5rem 2rem;
      display: flex;
      flex-direction: column;
      position: relative;
      transition: all 0.3s ease;
    }

    .pricing-card.featured {
      border: 2px solid var(--color-primary);
      box-shadow: 0 12px 30px rgba(15, 82, 186, 0.12);
      transform: scale(1.03);
      z-index: 2;
    }

    .pricing-ribbon {
      position: absolute;
      top: -12px;
      right: 20px;
      background: linear-gradient(135deg, var(--color-primary), #2563EB);
      color: #fff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 0.25rem 0.75rem;
      border-radius: 9999px;
      letter-spacing: 0.05em;
    }

    .pricing-name {
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 0.5rem;
    }

    .pricing-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      min-height: 48px;
      margin-bottom: 1.5rem;
    }

    .pricing-scale {
      font-size: 0.8125rem;
      color: var(--color-primary);
      background: rgba(15, 82, 186, 0.08);
      padding: 0.35rem 0.75rem;
      border-radius: var(--radius-sm);
      display: inline-block;
      margin-bottom: 1.5rem;
      font-weight: 600;
    }

    .pricing-features {
      list-style: none;
      margin-bottom: 2rem;
      flex-grow: 1;
    }

    .pricing-features li {
      position: relative;
      padding-left: 1.5rem;
      font-size: 0.9375rem;
      color: var(--text-main);
      margin-bottom: 0.75rem;
    }

    .pricing-features li::before {
      content: "✓";
      position: absolute;
      left: 0;
      top: 0;
      color: var(--color-accent);
      font-weight: bold;
    }

    /* 6. 深色案例沉浸区 */
    #dark-case {
      background-color: var(--bg-dark);
      color: #FFFFFF;
      padding: 6.5rem 0;
    }

    #dark-case .section-title {
      color: #FFFFFF;
    }

    #dark-case .section-desc {
      color: #94A3B8;
    }

    .dark-showcase-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 3.5rem;
      align-items: center;
    }

    .showcase-screen {
      background: var(--bg-dark-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 1.5rem;
      box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    }

    .showcase-screen-header {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      margin-bottom: 1.25rem;
      padding-bottom: 0.75rem;
      border-bottom: 1px solid var(--border-dark);
    }

    .screen-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
    }

    .dot-red { background: #EF4444; }
    .dot-yellow { background: #F59E0B; }
    .dot-green { background: #10B981; }

    .screen-title {
      font-size: 0.8125rem;
      color: #94A3B8;
      margin-left: 0.5rem;
      font-family: monospace;
    }

    .screen-body img {
      width: 100%;
      height: 280px;
      object-fit: cover;
      border-radius: var(--radius-sm);
    }

    .screen-kpis {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1rem;
      margin-top: 1.25rem;
    }

    .kpi-mini-card {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-sm);
      padding: 0.75rem;
      text-align: center;
    }

    .kpi-val {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--color-accent);
    }

    .kpi-lbl {
      font-size: 0.6875rem;
      color: #94A3B8;
      margin-top: 0.25rem;
    }

    .dark-features-list {
      display: flex;
      flex-direction: column;
      gap: 1.5rem;
    }

    .dark-feature-item {
      display: flex;
      gap: 1.25rem;
    }

    .dark-f-num {
      width: 2.25rem;
      height: 2.25rem;
      border-radius: 50%;
      background: rgba(0, 168, 107, 0.15);
      color: var(--color-accent);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      flex-shrink: 0;
    }

    .dark-feature-item h4 {
      font-size: 1.15rem;
      font-weight: 600;
      margin-bottom: 0.35rem;
      color: #F1F5F9;
    }

    .dark-feature-item p {
      font-size: 0.875rem;
      color: #94A3B8;
      line-height: 1.6;
    }

    /* 7. 标准化选址四步方法论区 */
    #methodology {
      background-color: #FFFFFF;
    }

    .timeline-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
      position: relative;
    }

    .timeline-steps::before {
      content: "";
      position: absolute;
      top: 36px;
      left: 10%;
      right: 10%;
      height: 2px;
      background: #E2E8F0;
      z-index: 1;
    }

    .timeline-step {
      position: relative;
      z-index: 2;
      background: #FFFFFF;
      text-align: center;
      padding: 0 0.5rem;
    }

    .step-circle {
      width: 4rem;
      height: 4rem;
      background: #FFFFFF;
      border: 2px solid var(--color-primary);
      color: var(--color-primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      font-weight: 800;
      margin: 0 auto 1.5rem;
      box-shadow: 0 0 0 6px #FFFFFF;
    }

    .step-circle.active {
      background: var(--color-primary);
      color: #FFFFFF;
    }

    .timeline-step h3 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 0.75rem;
      color: var(--text-main);
    }

    .timeline-step p {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 8. 客户拓店故事与深度场景区 */
    #stories {
      background-color: #F8FAFC;
    }

    .stories-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }

    .story-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }

    .story-cover {
      height: 200px;
      overflow: hidden;
      position: relative;
    }

    .story-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .story-card:hover .story-cover img {
      transform: scale(1.05);
    }

    .story-badge {
      position: absolute;
      top: 1rem;
      left: 1rem;
      background: rgba(15, 82, 186, 0.9);
      color: #fff;
      font-size: 0.75rem;
      font-weight: 600;
      padding: 0.25rem 0.6rem;
      border-radius: var(--radius-sm);
    }

    .story-body {
      padding: 1.75rem;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .story-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 0.75rem;
      color: var(--text-main);
    }

    .story-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 1.25rem;
      flex-grow: 1;
    }

    .story-stats {
      display: flex;
      justify-content: space-between;
      border-top: 1px solid #E2E8F0;
      padding-top: 1rem;
    }

    .stat-point span {
      display: block;
      font-size: 0.75rem;
      color: var(--text-muted);
    }

    .stat-point strong {
      font-size: 1.1rem;
      color: var(--color-primary);
    }

    /* 9. 关键运营与成效数据统计条 */
    #metrics {
      background: linear-gradient(135deg, var(--color-primary-dark), #0F52BA);
      color: #FFFFFF;
      padding: 4.5rem 0;
    }

    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 2rem;
      text-align: center;
    }

    .metric-item {
      padding: 1rem;
      border-right: 1px solid rgba(255, 255, 255, 0.15);
    }

    .metric-item:last-child {
      border-right: none;
    }

    .metric-number {
      font-size: 2.75rem;
      font-weight: 800;
      font-family: monospace, sans-serif;
      margin-bottom: 0.5rem;
      letter-spacing: -0.02em;
      color: #FFFFFF;
    }

    .metric-number span {
      font-size: 1.5rem;
      color: var(--color-accent);
    }

    .metric-label {
      font-size: 0.9375rem;
      color: #E2E8F0;
      font-weight: 500;
    }

    /* 10. 多行业连锁品牌用户评价区 */
    #testimonials {
      background-color: #FFFFFF;
    }

    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }

    .testimonial-card {
      background: var(--bg-light);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 2rem;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .testimonial-stars {
      color: #F59E0B;
      font-size: 1rem;
      margin-bottom: 1rem;
    }

    .testimonial-quote {
      font-size: 0.9375rem;
      color: var(--text-main);
      line-height: 1.7;
      margin-bottom: 1.5rem;
    }

    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      border-top: 1px solid #E2E8F0;
      padding-top: 1rem;
    }

    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--color-primary);
      color: #FFFFFF;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1rem;
    }

    .author-info h4 {
      font-size: 0.9375rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .author-info span {
      font-size: 0.75rem;
      color: var(--text-muted);
      display: block;
    }

    /* 11. 选址资讯与行业研报内嵌区 */
    #news {
      background-color: #F8FAFC;
    }

    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }

    .news-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: transform 0.25s ease;
    }

    .news-card:hover {
      transform: translateY(-4px);
    }

    .news-cover {
      height: 180px;
      overflow: hidden;
    }

    .news-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .news-content {
      padding: 1.5rem;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .news-date {
      font-size: 0.75rem;
      color: var(--text-muted);
      margin-bottom: 0.5rem;
    }

    .news-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 0.75rem;
      line-height: 1.45;
    }

    .news-summary {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 1.25rem;
      flex-grow: 1;
    }

    .news-link {
      font-size: 0.875rem;
      color: var(--color-primary);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 0.25rem;
    }

    /* 12. 常见选址与系统对接 FAQ 区 */
    #faq {
      background-color: #FFFFFF;
    }

    .faq-container-narrow {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 1rem;
      overflow: hidden;
      background: #FFFFFF;
      transition: all 0.2s ease;
    }

    .faq-item summary {
      padding: 1.25rem 1.5rem;
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-icon {
      font-size: 1.25rem;
      color: var(--color-primary);
      transition: transform 0.2s ease;
    }

    .faq-item[open] summary .faq-icon {
      transform: rotate(45deg);
    }

    .faq-content {
      padding: 0 1.5rem 1.25rem;
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.7;
      border-top: 1px solid #F1F5F9;
      padding-top: 1rem;
    }

    /* 13. 终极拓店转化与预约演示区 */
    #cta {
      background: linear-gradient(135deg, #071329 0%, #0F2D6B 100%);
      color: #FFFFFF;
      padding: 5.5rem 0;
    }

    .cta-card {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-lg);
      padding: 3.5rem 3rem;
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 3rem;
      align-items: center;
    }

    .cta-info h2 {
      font-size: 2.25rem;
      font-weight: 800;
      margin-bottom: 1rem;
      color: #FFFFFF;
      line-height: 1.3;
    }

    .cta-info p {
      font-size: 1.05rem;
      color: #CBD5E1;
      margin-bottom: 2rem;
      line-height: 1.75;
    }

    .cta-checklist {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 0.75rem;
    }

    .cta-checklist li {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.9375rem;
      color: #E2E8F0;
    }

    .cta-checklist li span {
      color: var(--color-accent);
      font-weight: bold;
    }

    .cta-form-box {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 2.25rem;
      color: var(--text-main);
      box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
    }

    .cta-form-box h3 {
      font-size: 1.35rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
      text-align: center;
    }

    .cta-form-box p {
      font-size: 0.875rem;
      color: var(--text-muted);
      margin-bottom: 1.5rem;
      text-align: center;
    }

    .form-group {
      margin-bottom: 1rem;
    }

    .form-group label {
      display: block;
      font-size: 0.8125rem;
      font-weight: 600;
      margin-bottom: 0.35rem;
      color: #334155;
    }

    /* 页脚 */
    footer.site-footer {
      background-color: #070F1E;
      color: #94A3B8;
      padding: 4.5rem 0 2rem;
      font-size: 0.875rem;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 3rem;
      margin-bottom: 3.5rem;
    }

    .footer-brand h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 1rem;
    }

    .footer-brand p {
      line-height: 1.7;
      color: #94A3B8;
      margin-bottom: 1.25rem;
    }

    .footer-nav-col h4 {
      font-size: 0.9375rem;
      font-weight: 600;
      color: #FFFFFF;
      margin-bottom: 1.25rem;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 0.65rem;
    }

    .footer-links a:hover {
      color: #FFFFFF;
      padding-left: 4px;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 2rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 1rem;
      font-size: 0.8125rem;
    }

    /* 移动端汉堡按钮 */
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 0.5rem;
    }

    .mobile-menu-btn span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--text-main);
      margin: 5px 0;
      transition: all 0.2s ease;
    }

    /* 响应式样式适配 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
      }
      .about-grid {
        grid-template-columns: 1fr;
      }
      .dark-showcase-grid {
        grid-template-columns: 1fr;
      }
      .cta-card {
        grid-template-columns: 1fr;
      }
      .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
      }
      .pricing-card.featured {
        transform: none;
      }
      .timeline-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 2.5rem;
      }
      .timeline-steps::before {
        display: none;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .top-bar-contact {
        display: none;
      }
      .main-nav {
        display: none;
      }
      .main-nav.show {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 4.5rem;
        left: 0;
        right: 0;
        background: #FFFFFF;
        padding: 1.5rem;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
        gap: 1rem;
      }
      .mobile-menu-btn {
        display: block;
      }
      .hero-content h1 {
        font-size: 2.15rem;
      }
      .features-grid,
      .pain-grid,
      .stories-grid,
      .news-grid,
      .testimonials-grid {
        grid-template-columns: 1fr;
      }
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
      }
      .metric-item {
        border-right: none;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
      }
    }

    @media (max-width: 480px) {
      .hero-content h1 {
        font-size: 1.85rem;
      }
      .timeline-steps {
        grid-template-columns: 1fr;
      }
      .metrics-grid {
        grid-template-columns: 1fr;
      }
      .cta-card {
        padding: 2rem 1.25rem;
      }
    }