/* roulang page: index */
:root {
      --primary-black: #111217;
      --secondary-dark: #1A1D24;
      --pure-black: #0D0E12;
      --accent-gold-start: #E5A93C;
      --accent-gold-end: #FF7A00;
      --text-main: #2D3748;
      --text-dark: #111217;
      --text-muted: #6B7280;
      --text-light: #9CA3AF;
      --bg-light: #F8F9FA;
      --bg-white: #FFFFFF;
      --border-light: #E5E7EB;
      --border-dark: rgba(255, 255, 255, 0.08);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 14px;
      --radius-xl: 20px;
      --shadow-soft: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.02);
      --shadow-hover: 0 20px 35px -8px rgba(0, 0, 0, 0.1), 0 10px 15px -4px rgba(0, 0, 0, 0.04);
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 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);
      color: var(--text-main);
      background-color: var(--bg-light);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

    ul, ol {
      list-style: none;
    }

    button, input, textarea {
      font-family: inherit;
      outline: none;
      border: none;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    .section-spacing {
      padding-top: 96px;
      padding-bottom: 96px;
    }

    .section-spacing-sm {
      padding-top: 64px;
      padding-bottom: 64px;
    }

    .section-header {
      margin-bottom: 56px;
    }

    .section-header.text-center {
      text-align: center;
      max-width: 780px;
      margin-left: auto;
      margin-right: auto;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 700;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: #D97706;
      background: rgba(229, 169, 60, 0.12);
      padding: 6px 14px;
      border-radius: 9999px;
      margin-bottom: 14px;
      border: 1px solid rgba(229, 169, 60, 0.25);
    }

    .section-tag.light {
      background: rgba(255, 255, 255, 0.1);
      color: #FBBF24;
      border-color: rgba(251, 191, 36, 0.3);
    }

    .section-title {
      font-size: 2.25rem;
      font-weight: 800;
      color: var(--text-dark);
      line-height: 1.3;
      letter-spacing: -0.02em;
      margin-bottom: 18px;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      font-size: 0.95rem;
      font-weight: 600;
      padding: 13px 28px;
      border-radius: var(--radius-md);
      cursor: pointer;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      text-align: center;
    }

    .btn-gold {
      background: linear-gradient(135deg, var(--accent-gold-start), var(--accent-gold-end));
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(229, 169, 60, 0.35);
    }

    .btn-gold:hover {
      box-shadow: 0 6px 20px rgba(229, 169, 60, 0.5);
      transform: translateY(-2px);
      filter: brightness(1.04);
    }

    .btn-outline-light {
      background: rgba(255, 255, 255, 0.08);
      color: #FFFFFF;
      border: 1px solid rgba(255, 255, 255, 0.25);
      backdrop-filter: blur(8px);
    }

    .btn-outline-light:hover {
      background: rgba(255, 255, 255, 0.18);
      border-color: #FFFFFF;
      transform: translateY(-2px);
    }

    .btn-outline-dark {
      background: transparent;
      color: var(--text-dark);
      border: 1px solid var(--border-light);
    }

    .btn-outline-dark:hover {
      background: #FFFFFF;
      border-color: var(--accent-gold-start);
      color: #D97706;
      box-shadow: var(--shadow-soft);
    }

    /* Top Bar */
    .top-bar {
      background: var(--pure-black);
      color: #A0AEC0;
      font-size: 0.8rem;
      border-bottom: 1px solid var(--border-dark);
      padding: 8px 0;
    }

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

    .top-bar-notice {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .status-dot {
      width: 7px;
      height: 7px;
      background: #10B981;
      border-radius: 50%;
      box-shadow: 0 0 8px #10B981;
    }

    .top-bar-info {
      display: flex;
      gap: 20px;
    }

    /* Main Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(17, 18, 23, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }

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

    .brand-logo-icon {
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, var(--accent-gold-start), var(--accent-gold-end));
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFFFFF;
      font-weight: 800;
      font-size: 1.25rem;
    }

    .brand-logo-text {
      color: #FFFFFF;
      font-size: 1.15rem;
      font-weight: 700;
      letter-spacing: -0.01em;
    }

    .brand-logo-sub {
      display: block;
      font-size: 0.72rem;
      color: var(--text-light);
      font-weight: 400;
      letter-spacing: 0.05em;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 28px;
    }

    .nav-links a {
      color: #E2E8F0;
      font-size: 0.92rem;
      font-weight: 500;
      position: relative;
      padding: 6px 0;
    }

    .nav-links a:hover, .nav-links a.active {
      color: var(--accent-gold-start);
    }

    .nav-links a::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0%;
      height: 2px;
      background: var(--accent-gold-start);
      transition: width 0.3s ease;
    }

    .nav-links a:hover::after {
      width: 100%;
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .mobile-toggle {
      display: none;
      background: transparent;
      color: #FFFFFF;
      font-size: 1.5rem;
      cursor: pointer;
      width: 44px;
      height: 44px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-dark);
    }

    /* 1. Hero Section */
    .hero-section {
      position: relative;
      background-color: var(--pure-black);
      background-image: linear-gradient(rgba(13, 14, 18, 0.75), rgba(13, 14, 18, 0.92)), url('/assets/images/15cffec1821ba045.png');
      background-size: cover;
      background-position: center;
      color: #FFFFFF;
      padding: 120px 0 100px;
      overflow: hidden;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .hero-content {
      max-width: 860px;
      margin: 0 auto;
      text-align: center;
      position: relative;
      z-index: 2;
    }

    .hero-title {
      font-size: 3.1rem;
      font-weight: 800;
      line-height: 1.22;
      letter-spacing: -0.02em;
      margin-bottom: 22px;
      background: linear-gradient(180deg, #FFFFFF 0%, #D1D5DB 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1.15rem;
      color: #A0AEC0;
      line-height: 1.8;
      margin-bottom: 34px;
      max-width: 780px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-checklist {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 18px 28px;
      margin-bottom: 40px;
    }

    .hero-check-item {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 0.92rem;
      color: #E2E8F0;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      padding: 7px 16px;
      border-radius: 9999px;
    }

    .hero-check-item svg {
      width: 16px;
      height: 16px;
      fill: #10B981;
    }

    .hero-cta-group {
      display: flex;
      justify-content: center;
      gap: 18px;
    }

    /* 2. 卖点三连 */
    .trio-cards {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
      margin-top: 10px;
    }

    .trio-card {
      background: var(--bg-white);
      border-radius: var(--radius-lg);
      padding: 38px 30px;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-soft);
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
    }

    .trio-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: transparent;
      transition: background 0.3s ease;
    }

    .trio-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(229, 169, 60, 0.4);
    }

    .trio-card:hover::before {
      background: linear-gradient(90deg, var(--accent-gold-start), var(--accent-gold-end));
    }

    .trio-icon-box {
      width: 58px;
      height: 58px;
      border-radius: 14px;
      background: rgba(229, 169, 60, 0.12);
      color: #D97706;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 22px;
      font-size: 1.5rem;
    }

    .trio-card h3 {
      font-size: 1.28rem;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 14px;
      line-height: 1.4;
    }

    .trio-card p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 3. 痛点与破局 */
    .pain-matrix-section {
      background: #FFFFFF;
      border-top: 1px solid var(--border-light);
      border-bottom: 1px solid var(--border-light);
    }

    .pain-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }

    .pain-image-box {
      position: relative;
      border-radius: var(--radius-xl);
      overflow: hidden;
      box-shadow: var(--shadow-soft);
      border: 1px solid var(--border-light);
    }

    .pain-badge-float {
      position: absolute;
      bottom: 24px;
      left: 24px;
      right: 24px;
      background: rgba(17, 18, 23, 0.88);
      backdrop-filter: blur(10px);
      color: #FFFFFF;
      padding: 18px 22px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.12);
    }

    .pain-badge-float h4 {
      color: #FBBF24;
      font-size: 0.95rem;
      margin-bottom: 4px;
    }

    .pain-badge-float p {
      font-size: 0.85rem;
      color: #D1D5DB;
      line-height: 1.5;
    }

    .pain-item {
      padding: 20px 22px;
      border-radius: var(--radius-md);
      background: var(--bg-light);
      margin-bottom: 18px;
      border-left: 4px solid #EF4444;
      transition: all 0.25s ease;
    }

    .pain-item:hover {
      background: #FFF;
      box-shadow: var(--shadow-soft);
      border-left-color: var(--accent-gold-start);
    }

    .pain-item h4 {
      font-size: 1.08rem;
      color: var(--text-dark);
      font-weight: 700;
      margin-bottom: 6px;
    }

    .pain-item p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 4. 入口矩阵 */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }

    .matrix-card {
      background: var(--bg-white);
      border-radius: var(--radius-lg);
      padding: 32px 26px;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-soft);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .matrix-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(229, 169, 60, 0.3);
    }

    .matrix-tag {
      align-self: flex-start;
      font-size: 0.75rem;
      font-weight: 600;
      color: #D97706;
      background: #FEF3C7;
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 16px;
    }

    .matrix-card h3 {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 12px;
    }

    .matrix-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.68;
      margin-bottom: 22px;
    }

    .matrix-features {
      border-top: 1px dashed var(--border-light);
      padding-top: 16px;
      margin-bottom: 20px;
    }

    .matrix-features li {
      font-size: 0.85rem;
      color: var(--text-main);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .matrix-features li::before {
      content: "•";
      color: var(--accent-gold-start);
      font-size: 1.2rem;
    }

    /* 5. 热门解决方案定制产品区 */
    .featured-solutions {
      background: #FFFFFF;
      border-top: 1px solid var(--border-light);
      border-bottom: 1px solid var(--border-light);
    }

    .solution-cards-large {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .solution-col {
      background: var(--bg-light);
      border-radius: var(--radius-xl);
      overflow: hidden;
      border: 1px solid var(--border-light);
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
    }

    .solution-col:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-5px);
      border-color: rgba(229, 169, 60, 0.4);
    }

    .solution-thumb {
      height: 200px;
      overflow: hidden;
      position: relative;
    }

    .solution-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

    .solution-col:hover .solution-thumb img {
      transform: scale(1.05);
    }

    .solution-body {
      padding: 26px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }

    .solution-body h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 12px;
    }

    .solution-body p {
      font-size: 0.92rem;
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.65;
    }

    .kpi-badge-group {
      margin-top: auto;
      padding-top: 16px;
      border-top: 1px solid var(--border-light);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .kpi-item-metric {
      font-size: 1.2rem;
      font-weight: 800;
      color: #D97706;
    }

    .kpi-item-label {
      font-size: 0.76rem;
      color: var(--text-light);
    }

    /* 6. 深色全宽品牌理念与底层架构护城河 */
    .brand-tech-section {
      background-color: var(--pure-black);
      background-image: linear-gradient(rgba(13, 14, 18, 0.88), rgba(13, 14, 18, 0.94)), url('/assets/images/4438e6c95b14d00d.jpg');
      background-size: cover;
      background-position: center;
      color: #FFFFFF;
      border-top: 1px solid var(--border-dark);
      border-bottom: 1px solid var(--border-dark);
    }

    .tech-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .tech-spec-list {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .tech-spec-item {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      transition: all 0.3s ease;
    }

    .tech-spec-item:hover {
      background: rgba(255, 255, 255, 0.07);
      border-color: rgba(229, 169, 60, 0.35);
    }

    .tech-spec-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 8px;
    }

    .tech-spec-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: #F3F4F6;
    }

    .tech-tag {
      font-size: 0.75rem;
      background: rgba(229, 169, 60, 0.2);
      color: #FBBF24;
      padding: 3px 8px;
      border-radius: 4px;
    }

    .tech-spec-desc {
      font-size: 0.88rem;
      color: #9CA3AF;
      line-height: 1.6;
    }

    .tech-box-card {
      background: rgba(26, 29, 36, 0.85);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-xl);
      padding: 36px;
      backdrop-filter: blur(14px);
    }

    .tech-box-card h3 {
      font-size: 1.4rem;
      color: #FFFFFF;
      margin-bottom: 14px;
    }

    .tech-box-card p {
      font-size: 0.95rem;
      color: #D1D5DB;
      margin-bottom: 24px;
      line-height: 1.7;
    }

    .tech-params-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .param-unit {
      background: rgba(0, 0, 0, 0.35);
      padding: 16px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.05);
    }

    .param-val {
      font-size: 1.45rem;
      font-weight: 800;
      color: var(--accent-gold-start);
      margin-bottom: 4px;
    }

    .param-name {
      font-size: 0.8rem;
      color: #9CA3AF;
    }

    /* 7. 步骤与落地链路 */
    .steps-chain {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }

    .step-box {
      background: var(--bg-white);
      border-radius: var(--radius-lg);
      padding: 32px 24px;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-soft);
      position:relative;
      transition: all 0.3s ease;
    }

    .step-box:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(229, 169, 60, 0.4);
    }

    .step-idx {
      font-size: 2.2rem;
      font-weight: 800;
      color: rgba(229, 169, 60, 0.22);
      line-height: 1;
      margin-bottom: 12px;
    }

    .step-box h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 10px;
    }

    .step-box p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 8. 标杆案例与实战验证 */
    .case-section {
      background: #FFFFFF;
      border-top: 1px solid var(--border-light);
      border-bottom: 1px solid var(--border-light);
    }

    .cases-split-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }

    .case-panel {
      background: var(--bg-light);
      border-radius: var(--radius-xl);
      overflow: hidden;
      border: 1px solid var(--border-light);
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-soft);
      transition: all 0.3s ease;
    }

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

    .case-cover {
      height: 240px;
      position: relative;
    }

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

    .case-body {
      padding: 30px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }

    .case-badge {
      display: inline-block;
      font-size: 0.76rem;
      font-weight: 600;
      color: #047857;
      background: #D1FAE5;
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 14px;
      align-self: flex-start;
    }

    .case-body h3 {
      font-size: 1.3rem;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 12px;
    }

    .case-body p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 22px;
    }

    .case-stats-row {
      margin-top: auto;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      background: #FFFFFF;
      padding: 16px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
    }

    .case-stat-item {
      text-align: center;
    }

    .case-stat-num {
      font-size: 1.25rem;
      font-weight: 800;
      color: #D97706;
    }

    .case-stat-lbl {
      font-size: 0.75rem;
      color: var(--text-light);
      margin-top: 2px;
    }

    /* 9. 核心运营指标统计条 */
    .metrics-bar-section {
      background: var(--pure-black);
      color: #FFFFFF;
      padding: 72px 0;
      border-top: 1px solid var(--border-dark);
      border-bottom: 1px solid var(--border-dark);
    }

    .metrics-grid-four {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
      text-align: center;
    }

    .metric-col {
      padding: 10px 16px;
      position: relative;
    }

    .metric-col:not(:last-child)::after {
      content: "";
      position: absolute;
      right: 0;
      top: 20%;
      height: 60%;
      width: 1px;
      background: rgba(255, 255, 255, 0.12);
    }

    .metric-number-bold {
      font-size: 2.85rem;
      font-weight: 800;
      background: linear-gradient(135deg, var(--accent-gold-start), var(--accent-gold-end));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      line-height: 1.15;
      margin-bottom: 10px;
    }

    .metric-title-txt {
      font-size: 1.05rem;
      font-weight: 600;
      color: #F3F4F6;
      margin-bottom: 6px;
    }

    .metric-sub-txt {
      font-size: 0.84rem;
      color: #9CA3AF;
      line-height: 1.5;
    }

    /* 10. 用户口碑与行业背书 */
    .testimonial-cards {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }

    .testi-card {
      background: var(--bg-white);
      border-radius: var(--radius-lg);
      padding: 32px 26px;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-soft);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all 0.3s ease;
    }

    .testi-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
      border-color: rgba(229, 169, 60, 0.3);
    }

    .testi-stars {
      color: #F59E0B;
      font-size: 1rem;
      margin-bottom: 14px;
      letter-spacing: 2px;
    }

    .testi-feedback {
      font-size: 0.94rem;
      color: var(--text-main);
      line-height: 1.7;
      margin-bottom: 24px;
      font-style: normal;
    }

    .testi-author {
      display: flex;
      align-items: center;
      gap: 14px;
      padding-top: 18px;
      border-top: 1px solid var(--border-light);
    }

    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #E5E7EB;
      overflow: hidden;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #374151;
      font-size: 1rem;
    }

    .author-info h4 {
      font-size: 0.95rem;
      color: var(--text-dark);
      font-weight: 700;
    }

    .author-info span {
      font-size: 0.78rem;
      color: var(--text-muted);
    }

    /* 11. 行业深度洞察与资讯 */
    .insights-section {
      background: #FFFFFF;
      border-top: 1px solid var(--border-light);
      border-bottom: 1px solid var(--border-light);
    }

    .insights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .insight-card {
      background: var(--bg-light);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-light);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
    }

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

    .insight-img-wrap {
      height: 190px;
      overflow: hidden;
    }

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

    .insight-card:hover .insight-img-wrap img {
      transform: scale(1.04);
    }

    .insight-content {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }

    .insight-meta {
      display: flex;
      justify-content: space-between;
      font-size: 0.78rem;
      color: var(--text-light);
      margin-bottom: 10px;
    }

    .insight-content h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 10px;
      line-height: 1.45;
    }

    .insight-content p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
    }

    .insight-link {
      margin-top: auto;
      font-size: 0.88rem;
      font-weight: 600;
      color: #D97706;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 12. 常见问题手风琴 */
    .faq-container-narrow {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-accordion-item {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
      margin-bottom: 14px;
      overflow: hidden;
      box-shadow: var(--shadow-soft);
      transition: border-color 0.25s ease;
    }

    .faq-accordion-item[open] {
      border-color: rgba(229, 169, 60, 0.45);
    }

    .faq-summary {
      padding: 20px 24px;
      font-size: 1.08rem;
      font-weight: 700;
      color: var(--text-dark);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      list-style: none;
    }

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

    .faq-summary-icon {
      width: 24px;
      height: 24px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #D97706;
      font-size: 1.25rem;
      transition: transform 0.25s ease;
    }

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

    .faq-body-text {
      padding: 0 24px 22px 24px;
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.75;
      border-top: 1px solid rgba(0, 0, 0, 0.04);
      padding-top: 14px;
    }

    /* 13. 底部收拢转化区 */
    .final-cta-section {
      background-color: var(--pure-black);
      background-image: linear-gradient(rgba(13, 14, 18, 0.85), rgba(13, 14, 18, 0.95)), url('/assets/images/22a58595ea4773c5.jpg');
      background-size: cover;
      background-position: center;
      color: #FFFFFF;
      text-align: center;
      padding: 110px 0;
      position: relative;
    }

    .cta-box-center {
      max-width: 820px;
      margin: 0 auto;
    }

    .cta-box-center h2 {
      font-size: 2.6rem;
      font-weight: 800;
      margin-bottom: 20px;
      line-height: 1.25;
      letter-spacing: -0.02em;
    }

    .cta-box-center p {
      font-size: 1.1rem;
      color: #D1D5DB;
      margin-bottom: 38px;
      line-height: 1.8;
    }

    .cta-form-lite {
      display: flex;
      max-width: 580px;
      margin: 0 auto 28px;
      gap: 12px;
      background: rgba(255, 255, 255, 0.08);
      padding: 8px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.15);
      backdrop-filter: blur(10px);
    }

    .cta-form-lite input {
      flex: 1;
      padding: 12px 18px;
      background: transparent;
      color: #FFFFFF;
      font-size: 0.95rem;
    }

    .cta-form-lite input::placeholder {
      color: #9CA3AF;
    }

    .cta-guarantee-list {
      display: flex;
      justify-content: center;
      gap: 26px;
      flex-wrap: wrap;
      font-size: 0.85rem;
      color: #9CA3AF;
    }

    .cta-guarantee-item {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .cta-guarantee-item svg {
      width: 15px;
      height: 15px;
      fill: #10B981;
    }

    /* Footer */
    .site-footer {
      background: #08090B;
      color: #9CA3AF;
      font-size: 0.88rem;
      padding-top: 72px;
      padding-bottom: 36px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 48px;
      margin-bottom: 56px;
    }

    .footer-brand-title {
      font-size: 1.3rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 16px;
    }

    .footer-desc {
      line-height: 1.7;
      margin-bottom: 20px;
      color: #8C92A4;
      font-size: 0.88rem;
    }

    .footer-nav-col h4 {
      font-size: 1rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 20px;
    }

    .footer-nav-col ul li {
      margin-bottom: 11px;
    }

    .footer-nav-col ul a {
      color: #9CA3AF;
    }

    .footer-nav-col ul a:hover {
      color: var(--accent-gold-start);
      padding-left: 4px;
    }

    .footer-contact-info li {
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 10px;
      color: #9CA3AF;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 18px;
      font-size: 0.82rem;
    }

    .trust-badges-row {
      display: flex;
      gap: 16px;
    }

    .trust-tag {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      padding: 4px 10px;
      border-radius: 4px;
      color: #9CA3AF;
      font-size: 0.75rem;
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .hero-title {
        font-size: 2.5rem;
      }
      .trio-cards, .matrix-grid, .solution-cards-large, .testimonial-cards, .insights-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-chain {
        grid-template-columns: repeat(2, 1fr);
      }
      .metrics-grid-four {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
      }
      .metric-col:nth-child(2)::after {
        display: none;
      }
      .footer-top-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .section-spacing {
        padding-top: 64px;
        padding-bottom: 64px;
      }
      .hero-section {
        padding: 80px 0 60px;
      }
      .hero-title {
        font-size: 2rem;
      }
      .section-title {
        font-size: 1.8rem;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        right: 0;
        background: #111217;
        flex-direction: column;
        padding: 24px;
        border-bottom: 1px solid var(--border-dark);
        gap: 18px;
      }
      .nav-links.is-open {
        display: flex;
      }
      .mobile-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
      }
      .trio-cards, .pain-grid, .matrix-grid, .solution-cards-large, .tech-grid, .steps-chain, .cases-split-grid, .metrics-grid-four, .testimonial-cards, .insights-grid, .footer-top-grid {
        grid-template-columns: 1fr;
      }
      .metric-col:not(:last-child)::after {
        display: none;
      }
      .cta-form-lite {
        flex-direction: column;
        background: transparent;
        border: none;
        padding: 0;
      }
      .cta-form-lite input {
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: var(--radius-md);
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
    }