:root {
      --white: #ffffff;
      --bg: #ffffff;
      --bg-alt: #fafafa;
      --bg-dark: #0a0a0a;
      --text-primary: #0a0a0a;
      --text-secondary: #555555;
      --text-muted: #999999;
      --text-light: #cccccc;
      --border: #e5e5e5;
      --border-light: #dddddd;
      --accent: #0a0a0a;
      --accent-hover: #2a2a2a;
      --overlay: rgba(0, 0, 0, 0.55);
      --font-en: 'Space Grotesk', sans-serif;
      --font-cn: 'Noto Sans SC', sans-serif;
      --container: 1200px;
      --nav-height: 72px;
      --section-pad: 140px;
      --grid-gap: 48px;
      --radius: 3px;
      --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
      --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
      --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
      --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

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

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

    body {
      font-family: var(--font-cn);
      color: var(--text-primary);
      background: var(--bg);
      line-height: 1.7;
      font-weight: 400;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      overflow-x: hidden;
    }

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

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

    ul,
    ol {
      list-style: none;
    }

    button {
      border: none;
      background: none;
      cursor: pointer;
      font-family: inherit;
    }

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

    .section-label {
      font-family: var(--font-en);
      font-size: 13px;
      font-weight: 500;
      letter-spacing: 0.15em;
      text-transform: uppercase;
      color: var(--text-muted);
      margin-bottom: 12px;
    }

    .section-number {
      font-family: var(--font-en);
      font-size: 80px;
      font-weight: 700;
      color: var(--border-light);
      line-height: 1;
      margin-bottom: 16px;
      letter-spacing: -0.04em;
    }

    .section-title {
      font-size: 42px;
      font-weight: 700;
      letter-spacing: -0.02em;
      line-height: 1.2;
      margin-bottom: 20px;
    }

    .section-desc {
      font-size: 17px;
      color: var(--text-secondary);
      line-height: 1.8;
      max-width: 560px;
    }

    .overline {
      font-family: var(--font-en);
      font-size: 11px;
      font-weight: 600;
      letter-spacing: 0.2em;
      text-transform: uppercase;
      color: var(--text-muted);
    }

    .container {
      max-width: var(--container);
      margin: 0 auto;
      padding: 0 32px;
    }

    .section {
      padding: var(--section-pad) 0;
    }

    .grid-2 {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: var(--grid-gap);
    }

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

    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: var(--grid-gap);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 32px;
      font-size: 14px;
      font-weight: 500;
      letter-spacing: 0.02em;
      border-radius: var(--radius);
      transition: all var(--transition);
    }

    .btn-primary {
      background: var(--accent);
      color: var(--white);
    }

    .btn-primary:hover {
      background: var(--accent-hover);
      transform: translateY(-1px);
      box-shadow: var(--shadow-md);
    }

    .btn-outline {
      background: transparent;
      color: var(--text-primary);
      border: 1.5px solid var(--text-primary);
    }

    .btn-outline:hover {
      background: var(--text-primary);
      color: var(--white);
    }

    .btn-white {
      background: var(--white);
      color: var(--text-primary);
    }

    .btn-white:hover {
      background: var(--bg-alt);
      transform: translateY(-1px);
    }

    .btn-sm {
      padding: 10px 24px;
      font-size: 13px;
    }

    .btn-icon {
      width: 20px;
      height: 20px;
    }

    /* Navigation */
    .nav {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      height: var(--nav-height);
      z-index: 1000;
      transition: all var(--transition);
      background: rgba(255, 255, 255, 0);
    }

    .nav.scrolled {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      box-shadow: 0 1px 0 var(--border);
    }

    /* FIX: 当移动端菜单打开时强制导航栏深色显示 */
    .nav.menu-open {
      background: rgba(255, 255, 255, 0.98);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      box-shadow: 0 1px 0 var(--border);
    }

    .nav.menu-open .nav-logo {
      color: var(--text-primary);
    }

    .nav.menu-open .nav-logo .logo-mark {
      background: var(--text-primary);
      color: var(--white);
    }

    .nav.menu-open .nav-menu-btn {
      color: var(--text-primary);
    }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 100%;
      max-width: var(--container);
      margin: 0 auto;
      padding: 0 32px;
    }

    .nav-logo {
      font-family: var(--font-en);
      font-size: 20px;
      font-weight: 700;
      letter-spacing: -0.02em;
      color: var(--white);
      transition: color var(--transition);
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .nav-logo .logo-mark {
      width: 32px;
      height: 32px;
      background: var(--white);
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      font-weight: 700;
      color: var(--bg-dark);
      transition: background var(--transition), color var(--transition);
    }

    .nav.scrolled .nav-logo {
      color: var(--text-primary);
    }

    .nav.scrolled .nav-logo .logo-mark {
      background: var(--text-primary);
      color: var(--white);
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 36px;
    }

    .nav-links a {
      font-size: 14px;
      font-weight: 400;
      color: rgba(255, 255, 255, 0.8);
      transition: color var(--transition);
      position: relative;
    }

    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 0;
      height: 1.5px;
      background: var(--white);
      transition: width var(--transition), background var(--transition);
    }

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

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

    .nav.scrolled .nav-links a {
      color: var(--text-secondary);
    }

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

    .nav.scrolled .nav-links a::after {
      background: var(--text-primary);
    }

    .nav-cta .btn {
      padding: 10px 24px;
      font-size: 13px;
    }

    .nav-cta .btn-primary {
      background: var(--white);
      color: var(--text-primary);
    }

    .nav-cta .btn-primary:hover {
      background: rgba(255, 255, 255, 0.9);
    }

    .nav.scrolled .nav-cta .btn-primary {
      background: var(--text-primary);
      color: var(--white);
    }

    .nav-menu-btn {
      display: none;
      color: var(--white);
      transition: color var(--transition);
    }

    .nav.scrolled .nav-menu-btn {
      color: var(--text-primary);
    }

    /* FIX: z-index 从 999 提升到 1100，确保在 nav(1000) 之上 */
    .mobile-menu {
      display: none;
      position: fixed;
      inset: 0;
      background: var(--white);
      z-index: 1100;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 32px;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.4s ease;
    }

    .mobile-menu.open {
      opacity: 1;
      pointer-events: all;
    }

    .mobile-menu a {
      font-size: 28px;
      font-weight: 500;
      color: var(--text-primary);
    }

    .mobile-menu-close {
      position: absolute;
      top: 24px;
      right: 32px;
      color: var(--text-primary);
      z-index: 2;
    }

    /* Hero Carousel */
    .hero {
      position: relative;
      height: 100vh;
      min-height: 700px;
      overflow: hidden;
    }

    .carousel-slides {
      position: relative;
      width: 100%;
      height: 100%;
    }

    .carousel-slide {
      position: absolute;
      inset: 0;
      opacity: 0;
      transition: opacity 1.2s ease;
      z-index: 1;
    }

    .carousel-slide.active {
      opacity: 1;
      z-index: 2;
    }

    .carousel-slide-bg {
      position: absolute;
      inset: 0;
      background-size: cover;
      background-position: center;
      transform: scale(1.05);
      transition: transform 8s ease;
    }

    .carousel-slide.active .carousel-slide-bg {
      transform: scale(1);
    }

    .carousel-slide-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.3) 100%);
    }

    .carousel-slide-content {
      position: absolute;
      inset: 0;
      display: flex;
      flex-direction: column;
      justify-content: center;
      padding-left: calc((100vw - var(--container)) / 2 + 32px);
      z-index: 3;
    }

    .carousel-slide-content .overline {
      color: rgba(255, 255, 255, 0.7);
      margin-bottom: 20px;
      opacity: 0;
      transform: translateY(20px);
      transition: all 0.8s ease 0.3s;
    }

    .carousel-slide.active .carousel-slide-content .overline {
      opacity: 1;
      transform: translateY(0);
    }

    .carousel-slide-content h1 {
      font-family: var(--font-cn);
      font-size: 64px;
      font-weight: 700;
      color: var(--white);
      line-height: 1.15;
      letter-spacing: -0.02em;
      max-width: 700px;
      margin-bottom: 24px;
      opacity: 0;
      transform: translateY(30px);
      transition: all 0.8s ease 0.5s;
    }

    .carousel-slide.active .carousel-slide-content h1 {
      opacity: 1;
      transform: translateY(0);
    }

    .carousel-slide-content p {
      font-size: 18px;
      color: rgba(255, 255, 255, 0.8);
      max-width: 500px;
      margin-bottom: 40px;
      opacity: 0;
      transform: translateY(20px);
      transition: all 0.8s ease 0.7s;
    }

    .carousel-slide.active .carousel-slide-content p {
      opacity: 1;
      transform: translateY(0);
    }

    .carousel-slide-content .hero-actions {
      display: flex;
      gap: 16px;
      opacity: 0;
      transform: translateY(20px);
      transition: all 0.8s ease 0.9s;
    }

    .carousel-slide.active .carousel-slide-content .hero-actions {
      opacity: 1;
      transform: translateY(0);
    }

    .carousel-dots {
      position: absolute;
      bottom: 48px;
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      gap: 12px;
      z-index: 10;
    }

    .carousel-dot {
      width: 40px;
      height: 3px;
      background: rgba(255, 255, 255, 0.3);
      border-radius: 2px;
      cursor: pointer;
      transition: all var(--transition);
      position: relative;
      overflow: hidden;
    }

    .carousel-dot.active {
      background: rgba(255, 255, 255, 0.3);
    }

    .carousel-dot.active::after {
      content: '';
      position: absolute;
      left: 0;
      top: 0;
      height: 100%;
      background: var(--white);
      animation: dotProgress 6s linear forwards;
    }

    @keyframes dotProgress {
      from {
        width: 0;
      }

      to {
        width: 100%;
      }
    }

    .carousel-arrow {
      position: absolute;
      bottom: 40px;
      z-index: 10;
      width: 48px;
      height: 48px;
      display: flex;
      align-items: center;
      justify-content: center;
      border: 1px solid rgba(255, 255, 255, 0.3);
      color: var(--white);
      transition: all var(--transition);
      cursor: pointer;
    }

    .carousel-arrow:hover {
      background: rgba(255, 255, 255, 0.15);
      border-color: rgba(255, 255, 255, 0.6);
    }

    .carousel-arrow.prev {
      right: 100px;
    }

    .carousel-arrow.next {
      right: 40px;
    }

    .scroll-indicator {
      position: absolute;
      bottom: 48px;
      left: 32px;
      display: flex;
      align-items: center;
      gap: 12px;
      color: rgba(255, 255, 255, 0.6);
      font-family: var(--font-en);
      font-size: 11px;
      letter-spacing: 0.15em;
      text-transform: uppercase;
      z-index: 10;
    }

    .scroll-line {
      width: 48px;
      height: 1px;
      background: rgba(255, 255, 255, 0.3);
      position: relative;
      overflow: hidden;
    }

    .scroll-line::after {
      content: '';
      position: absolute;
      left: -100%;
      width: 100%;
      height: 100%;
      background: var(--white);
      animation: scrollLine 2s ease infinite;
    }

    @keyframes scrollLine {
      0% {
        left: -100%;
      }

      100% {
        left: 100%;
      }
    }

    /* Stats */
    .stats-bar {
      padding: 80px 0;
      border-bottom: 1px solid var(--border);
    }

    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 0;
    }

    .stat-item {
      text-align: center;
      padding: 0 32px;
      position: relative;
    }

    .stat-item:not(:last-child)::after {
      content: '';
      position: absolute;
      right: 0;
      top: 50%;
      transform: translateY(-50%);
      width: 1px;
      height: 48px;
      background: var(--border);
    }

    .stat-number {
      font-family: var(--font-en);
      font-size: 52px;
      font-weight: 700;
      letter-spacing: -0.03em;
      line-height: 1;
      margin-bottom: 12px;
      color: var(--text-primary);
    }

    .stat-number .suffix {
      font-size: 28px;
      font-weight: 400;
      color: var(--text-muted);
    }

    .stat-label {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 400;
    }

    /* Services */
    .services-section {
      background: var(--bg-alt);
    }

    .services-header {
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
      margin-bottom: 72px;
    }

    .services-header .section-desc {
      margin: 0;
    }

    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: var(--white);
      padding: 48px 36px;
      border-radius: var(--radius);
      transition: all var(--transition);
      border: 1px solid transparent;
      position: relative;
      overflow: hidden;
    }

    .service-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background: var(--text-primary);
      transform: scaleX(0);
      transform-origin: left;
      transition: transform var(--transition);
    }

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

    .service-card:hover::before {
      transform: scaleX(1);
    }

    .service-icon {
      width: 48px;
      height: 48px;
      margin-bottom: 28px;
      color: var(--text-primary);
    }

    .service-card h3 {
      font-size: 20px;
      font-weight: 600;
      margin-bottom: 14px;
      letter-spacing: -0.01em;
    }

    .service-card p {
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.7;
    }

    /* Client Logos */
    .clients-section {
      padding: 10px 0;
    }

    .clients-header {
      text-align: center;
      margin-bottom: 64px;
    }

    .logos-track-wrapper {
      overflow: hidden;
      position: relative;
    }

    .logos-track {
      display: flex;
      gap: 48px;
      animation: scrollLogos 70s linear infinite;
      width: max-content;
    }

    @keyframes scrollLogos {
      0% {
        transform: translateX(0);
      }

      100% {
        transform: translateX(-50%);
      }
    }

    .logos-track:hover {
      animation-play-state: paused;
    }

    .logo-item {
      flex-shrink: 0;
      height: 66px;
      display: flex;
      align-items: center;
      justify-content: center;
      opacity: 0.85;
      transition: opacity var(--transition), transform var(--transition);
    }

    .logo-item:hover {
      opacity: 1;
      transform: scale(1.02);
    }

    .logo-item img {
      height: 56px;
      width: 160px;
      object-fit: contain;
      border-radius: var(--radius);
    }

    .brand-logo {
      flex-shrink: 0;
      width: 208px;
      height: 72px;
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 3px;
      transition: all var(--transition);
    }

    .brand-logo:hover {
      border-color: var(--text-primary);
      box-shadow: var(--shadow-sm);
    }

    .brand-logo .brand-zh {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-primary);
      letter-spacing: 0.02em;
      line-height: 1.3;
    }

    .brand-logo .brand-en {
      font-family: var(--font-en);
      font-size: 11px;
      font-weight: 500;
      color: var(--text-muted);
      letter-spacing: 0.05em;
      line-height: 1.3;
    }

    /* News Preview */
    .news-preview-section {
      background: var(--bg-alt);
    }

    .news-preview-header {
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
      margin-bottom: 56px;
    }

    .news-preview-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }

    .news-card {
      background: var(--white);
      border-radius: var(--radius);
      overflow: hidden;
      transition: all var(--transition);
    }

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

    .news-card-img {
      width: 100%;
      height: 220px;
      background-size: cover;
      background-position: center;
      transition: transform 0.6s ease;
    }

    .news-card:hover .news-card-img {
      transform: scale(1.03);
    }

    .news-card-img-wrapper {
      overflow: hidden;
    }

    .news-card-body {
      padding: 28px;
    }

    .news-card-meta {
      display: flex;
      align-items: center;
      gap: 16px;
      margin-bottom: 14px;
    }

    .news-card-date {
      font-family: var(--font-en);
      font-size: 13px;
      color: var(--text-muted);
    }

    .news-card-tag {
      font-size: 11px;
      padding: 3px 10px;
      border: 1px solid var(--border);
      border-radius: 20px;
      color: var(--text-muted);
    }

    .news-card-body h3 {
      font-size: 18px;
      font-weight: 600;
      margin-bottom: 10px;
      line-height: 1.4;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .news-card-body p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.7;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    /* CTA */
    .cta-section {
      padding: 120px 0;
      text-align: center;
    }

    .cta-section .section-title {
      margin-bottom: 24px;
    }

    .cta-section .section-desc {
      margin: 0 auto 48px;
      text-align: center;
    }

    .cta-actions {
      display: flex;
      gap: 16px;
      justify-content: center;
    }

    /* About */
    .about-intro {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 80px;
      align-items: center;
      margin-bottom: 120px;
    }

    .about-intro-img {
      width: 100%;
      height: 480px;
      border-radius: var(--radius);
      position: relative;
    }

    .about-story-content p {
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.8;
      margin-bottom: 20px;
    }

    .about-story-content p:last-child { margin-bottom: 28px; }

    .about-intro-text .section-desc {
      margin-bottom: 28px;
    }

    .about-intro-text p {
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.8;
      margin-bottom: 16px;
    }

    .values-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      margin-bottom: 120px;
    }

    .value-card {
      text-align: center;
      padding: 48px 28px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      transition: all var(--transition);
    }

    .value-card:hover {
      border-color: var(--text-primary);
      transform: translateY(-4px);
    }

    .value-icon {
      width: 48px;
      height: 48px;
      margin: 0 auto 24px;
      color: var(--text-primary);
    }

    .value-card h3 {
      font-size: 18px;
      font-weight: 600;
      margin-bottom: 12px;
    }

    .value-card p {
      font-size: 14px;
      color: var(--text-secondary);
    }

    .honors-section {
      margin-bottom: 120px;
    }

    .honors-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .honor-card {
      padding: 32px;
      background: var(--bg-alt);
      border-radius: var(--radius);
      text-align: center;
      transition: all var(--transition);
    }

    .honor-card:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }

    .honor-icon {
      width: 56px;
      height: 56px;
      margin: 0 auto 16px;
      color: var(--text-muted);
    }

    .honor-card h4 {
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 6px;
    }

    .honor-card p {
      font-size: 13px;
      color: var(--text-muted);
    }

    .team-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
    }

    .team-card {
      text-align: center;
    }

    .team-avatar {
      width: 100%;
      aspect-ratio: 3/4;
      background-size: cover;
      background-position: center top;
      border-radius: var(--radius);
      margin-bottom: 20px;
      filter: grayscale(100%);
      transition: filter var(--transition);
    }

    .team-card:hover .team-avatar {
      filter: grayscale(0%);
    }

    .team-card h4 {
      font-size: 17px;
      font-weight: 600;
      margin-bottom: 4px;
    }

    .team-card .team-role {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* Solutions */
    .solutions-section {
      background: var(--bg-alt);
    }

    .solutions-tabs {
      display: flex;
      gap: 0;
      margin-bottom: 64px;
      border-bottom: 1px solid var(--border);
    }

    .solution-tab {
      padding: 16px 32px;
      font-size: 15px;
      font-weight: 500;
      color: var(--text-muted);
      cursor: pointer;
      border-bottom: 2px solid transparent;
      transition: all var(--transition);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .solution-tab:hover {
      color: var(--text-primary);
    }

    .solution-tab.active {
      color: var(--text-primary);
      border-bottom-color: var(--text-primary);
    }

    .solution-panel {
      display: none;
    }

    .solution-panel.active {
      display: block;
    }

    .solution-content {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 80px;
      align-items: start;
    }

    .solution-text h3 {
      font-size: 28px;
      font-weight: 700;
      margin-bottom: 20px;
      letter-spacing: -0.01em;
    }

    .solution-text p {
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.8;
      margin-bottom: 32px;
    }

    .pain-points {
      margin-bottom: 32px;
    }

    .pain-point {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      margin-bottom: 16px;
      font-size: 15px;
      color: var(--text-secondary);
    }

    .pain-point .check-icon {
      width: 20px;
      height: 20px;
      flex-shrink: 0;
      color: var(--text-primary);
      margin-top: 2px;
    }

    .solution-metrics {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 32px;
    }

    .metric-item {
      text-align: center;
      padding: 24px 16px;
      background: var(--white);
      border-radius: var(--radius);
    }

    .metric-value {
      font-family: var(--font-en);
      font-size: 32px;
      font-weight: 700;
      margin-bottom: 4px;
    }

    .metric-label {
      font-size: 13px;
      color: var(--text-muted);
    }

    .solution-arch {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 40px;
    }

    .arch-layer {
      padding: 20px 24px;
      border-radius: var(--radius);
      font-size: 14px;
      font-weight: 500;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .arch-layer:last-child {
      margin-bottom: 0;
    }

    .arch-layer.apps {
      background: #f0f0f0;
    }

    .arch-layer.platform {
      background: #f0f0f0;
    }

    .arch-layer.data {
      background: #f0f0f0;
    }

    .arch-layer.infra {
      background: #f0f0f0;
    }

    .arch-layer-label {
      font-size: 11px;
      font-weight: 400;
      color: var(--text-muted);
      text-transform: uppercase;
      letter-spacing: 0.1em;
    }

    .arch-connector {
      width: 1px;
      height: 24px;
      background: var(--border);
      margin: 0 auto;
    }

    /* Cases */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }

    .case-card {
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--border);
      transition: all var(--transition);
      cursor: pointer;
    }

    .case-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
    }

    .case-card-img {
      width: 100%;
      height: 240px;
      background-size: cover;
      background-position: center;
      position: relative;
    }

    .case-card-img::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(0, 0, 0, 0.5) 0%, transparent 50%);
      opacity: 0;
      transition: opacity var(--transition);
    }

    .case-card:hover .case-card-img::after {
      opacity: 1;
    }

    .case-card-tag {
      position: absolute;
      top: 16px;
      left: 16px;
      z-index: 2;
      font-size: 11px;
      padding: 3px 10px;
      background: rgba(255, 255, 255, 0.95);
      border-radius: 20px;
      color: var(--text-muted);
      font-weight: 500;
      backdrop-filter: blur(8px);
    }

    .case-card-body {
      padding: 28px;
    }

    .case-client {
      font-family: var(--font-en);
      font-size: 12px;
      font-weight: 500;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--text-muted);
      margin-bottom: 10px;
    }

    .case-card-body h3 {
      font-size: 19px;
      font-weight: 600;
      margin-bottom: 12px;
      line-height: 1.4;
    }

    .case-card-body p {
      font-size: 14px;
      color: var(--text-secondary);
      margin-bottom: 20px;
      line-height: 1.7;
    }

    .case-metrics {
      display: flex;
      gap: 24px;
      padding-top: 20px;
      border-top: 1px solid var(--border-light);
    }

    .case-metric-item {
      text-align: left;
    }

    .case-metric-value {
      font-family: var(--font-en);
      font-size: 22px;
      font-weight: 700;
      color: var(--text-primary);
    }

    .case-metric-label {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* News Modal */
    .news-modal {
      position: fixed;
      inset: 0;
      z-index: 2000;
      display: flex;
      align-items: center;
      justify-content: center;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.4s ease;
    }

    .news-modal.open {
      opacity: 1;
      pointer-events: all;
    }

    .news-modal-overlay {
      position: absolute;
      inset: 0;
      background: rgba(0, 0, 0, 0.6);
      backdrop-filter: blur(4px);
    }

    .news-modal-content {
      position: relative;
      background: var(--white);
      width: 90%;
      max-width: 780px;
      max-height: 85vh;
      overflow-y: auto;
      border-radius: var(--radius);
      z-index: 1;
      transform: translateY(20px);
      transition: transform 0.4s ease;
    }

    .news-modal.open .news-modal-content {
      transform: translateY(0);
    }

    .news-modal-close {
      position: absolute;
      top: 20px;
      right: 20px;
      width: 40px;
      height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--bg-alt);
      border-radius: 50%;
      z-index: 2;
      color: var(--text-primary);
      transition: background var(--transition);
    }

    .news-modal-close:hover {
      background: var(--border);
    }

    .news-modal-img {
      width: 100%;
      height: 340px;
      background-size: cover;
      background-position: center;
    }

    .news-modal-body {
      padding: 48px;
    }

    .news-modal-body .overline {
      margin-bottom: 16px;
    }

    .news-modal-body h2 {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 24px;
    }

    .news-modal-body .article-text {
      font-size: 16px;
      color: var(--text-secondary);
      line-height: 1.9;
    }

    .news-modal-body .article-text p {
      margin-bottom: 20px;
    }

    /* Partners */
    .partners-intro {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 80px;
      margin-bottom: 100px;
      align-items: center;
    }

    /* Partner Ecosystem */
    .eco-groups {
      display: flex;
      flex-direction: column;
      gap: 56px;
    }

    .eco-group-title {
      font-size: 17px;
      font-weight: 600;
      letter-spacing: 0.02em;
      color: var(--text-primary);
      margin-bottom: 24px;
      padding-left: 14px;
      border-left: 3px solid var(--text-primary);
    }

    .eco-group-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .eco-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 32px;
      position: relative;
      overflow: hidden;
      transition: all var(--transition);
    }

    .eco-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background: var(--text-primary);
      transform: scaleX(0);
      transform-origin: left;
      transition: transform var(--transition);
    }

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

    .eco-card:hover::before {
      transform: scaleX(1);
    }

    .eco-name {
      font-size: 22px;
      font-weight: 700;
      letter-spacing: -0.01em;
      line-height: 1.3;
      color: var(--text-primary);
    }

    .eco-en {
      font-family: var(--font-en);
      font-size: 12px;
      font-weight: 500;
      color: var(--text-muted);
      letter-spacing: 0.06em;
      text-transform: uppercase;
      margin-bottom: 18px;
    }

    .eco-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 18px;
    }

    .eco-tag {
      font-size: 12px;
      font-weight: 400;
      padding: 4px 12px;
      border-radius: 100px;
      background: var(--bg-alt);
      border: 1px solid var(--border);
      color: var(--text-secondary);
    }

    .eco-card p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.8;
    }

    .partner-tiers {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
      margin-bottom: 100px;
    }

    .tier-card {
      padding: 40px 32px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      text-align: center;
      transition: all var(--transition);
      position: relative;
    }

    .tier-card.featured {
      border-color: var(--text-primary);
      background: var(--bg-dark);
      color: var(--white);
    }

    .tier-card:not(.featured):hover {
      border-color: var(--text-primary);
      transform: translateY(-4px);
    }

    .tier-badge {
      font-family: var(--font-en);
      font-size: 11px;
      font-weight: 600;
      letter-spacing: 0.15em;
      text-transform: uppercase;
      color: var(--text-muted);
      margin-bottom: 20px;
    }

    .tier-card.featured .tier-badge {
      color: rgba(255, 255, 255, 0.5);
    }

    .tier-card h3 {
      font-size: 24px;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .tier-card p {
      font-size: 14px;
      color: var(--text-secondary);
      margin-bottom: 28px;
    }

    .tier-card.featured p {
      color: rgba(255, 255, 255, 0.6);
    }

    .tier-features {
      text-align: left;
      margin-bottom: 32px;
    }

    .tier-feature {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 10px 0;
      font-size: 14px;
      color: var(--text-secondary);
      border-bottom: 1px solid var(--border-light);
    }

    .tier-card.featured .tier-feature {
      color: rgba(255, 255, 255, 0.7);
      border-bottom-color: rgba(255, 255, 255, 0.1);
    }

    .tier-feature .check-icon {
      width: 18px;
      height: 18px;
      flex-shrink: 0;
    }

    .tier-card.featured .btn-primary {
      background: var(--white);
      color: var(--text-primary);
    }

    .ecosystem-section {
      text-align: center;
      margin-bottom: 100px;
    }

    .ecosystem-diagram {
      max-width: 700px;
      margin: 48px auto 0;
      position: relative;
    }

    .eco-center {
      width: 140px;
      height: 140px;
      background: var(--text-primary);
      color: var(--white);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto;
      font-size: 16px;
      font-weight: 600;
      position: relative;
      z-index: 2;
    }

    .eco-ring {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      border: 1px dashed var(--border);
      border-radius: 50%;
    }

    .eco-ring-1 {
      width: 280px;
      height: 280px;
    }

    .eco-ring-2 {
      width: 440px;
      height: 440px;
    }

    .eco-node {
      position: absolute;
      width: 100px;
      height: 100px;
      background: var(--bg-alt);
      border: 1px solid var(--border);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      font-weight: 500;
      text-align: center;
      padding: 8px;
      z-index: 2;
      transition: all var(--transition);
    }

    .eco-node:hover {
      border-color: var(--text-primary);
      transform: scale(1.05);
    }

    .eco-n1 {
      top: 0;
      left: 50%;
      transform: translateX(-50%);
    }

    .eco-n2 {
      top: 25%;
      right: 0;
    }

    .eco-n3 {
      bottom: 25%;
      right: 0;
    }

    .eco-n4 {
      bottom: 0;
      left: 50%;
      transform: translateX(-50%);
    }

    .eco-n5 {
      bottom: 25%;
      left: 0;
    }

    .eco-n6 {
      top: 25%;
      left: 0;
    }

    /* Contact */
    .contact-section {
      background: var(--bg-alt);
    }

    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 80px;
    }

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

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

    .form-group label {
      display: block;
      font-size: 13px;
      font-weight: 500;
      margin-bottom: 8px;
      color: var(--text-primary);
    }

    .form-group input,
    .form-group textarea,
    .form-group select {
      width: 100%;
      padding: 14px 16px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: var(--white);
      color: var(--text-primary);
      font-size: 15px;
      transition: border-color var(--transition);
      outline: none;
    }

    .form-group input:focus,
    .form-group textarea:focus,
    .form-group select:focus {
      border-color: var(--text-primary);
    }

    .form-group textarea {
      resize: vertical;
      min-height: 140px;
    }

    .form-group .error-msg {
      font-size: 12px;
      color: #e53e3e;
      margin-top: 6px;
      display: none;
    }

    .form-group.has-error input,
    .form-group.has-error textarea {
      border-color: #e53e3e;
    }

    .form-group.has-error .error-msg {
      display: block;
    }

    .contact-info {
      display: flex;
      flex-direction: column;
      height: 100%;
      padding-top: 16px;
    }

    .contact-map {
      width: 100%;
      height: 260px;
      border-radius: var(--radius);
      margin-bottom: 40px;
      position: relative;
      overflow: hidden;
    }

    .contact-map iframe {
      width: 100%;
      height: 100%;
      border: 0;
      display: block;
    }

    .wechat-qr-wrap {
      display: flex;
      align-items: center;
      gap: 20px;
      margin-bottom: 40px;
      padding: 20px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: var(--bg-alt);
    }

    .wechat-qr {
      width: 96px;
      height: 96px;
      flex-shrink: 0;
      border-radius: var(--radius);
      overflow: hidden;
      background: var(--white);
    }

    .wechat-qr img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .wechat-id-row {
      display: flex;
      flex-direction: column;
      gap: 4px;
    }

    .wechat-id-label {
      font-size: 12px;
      color: var(--text-muted);
    }

    .wechat-id-value {
      font-size: 16px;
      font-weight: 600;
      color: var(--text-primary);
    }

    .form-trust-row {
      display: flex;
      justify-content: center;
      gap: 24px;
      margin-top: 18px;
      flex-wrap: wrap;
    }

    .trust-point {
      display: flex;
      align-items: center;
      gap: 6px;
      font-size: 13px;
      color: var(--text-muted);
    }

    .trust-point i {
      color: #22c55e;
    }

    .contact-details {
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      gap: 28px;
    }

    .contact-detail {
      display: flex;
      gap: 16px;
      align-items: flex-start;
    }

    .contact-detail-icon {
      width: 40px;
      height: 40px;
      background: var(--white);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      color: var(--text-primary);
    }

    .contact-detail h4 {
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 4px;
    }

    .contact-detail p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* Footer */
    .footer {
      background: var(--bg-dark);
      color: var(--white);
      padding: 80px 0 0;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 64px;
      margin-bottom: 64px;
    }

    .footer-brand h3 {
      font-family: var(--font-en);
      font-size: 22px;
      font-weight: 700;
      margin-bottom: 16px;
      letter-spacing: -0.02em;
    }

    .footer-brand p {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.5);
      line-height: 1.7;
      max-width: 320px;
      margin-bottom: 24px;
    }

    .footer-social {
      display: flex;
      gap: 12px;
    }

    .footer-social a {
      width: 40px;
      height: 40px;
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: rgba(255, 255, 255, 0.6);
      transition: all var(--transition);
    }

    .footer-social a:hover {
      border-color: var(--white);
      color: var(--white);
    }

    .footer-col h4 {
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 24px;
      letter-spacing: 0.02em;
    }

    .footer-col ul li {
      margin-bottom: 14px;
    }

    .footer-col ul li a {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.5);
      transition: color var(--transition);
    }

    .footer-col ul li a:hover {
      color: var(--white);
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding: 24px 0;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .footer-bottom p {
      font-size: 13px;
      color: rgba(255, 255, 255, 0.35);
    }

    .footer-bottom-links {
      display: flex;
      gap: 24px;
    }

    .footer-bottom-links a {
      font-size: 13px;
      color: rgba(255, 255, 255, 0.35);
      transition: color var(--transition);
    }

    .footer-bottom-links a:hover {
      color: rgba(255, 255, 255, 0.7);
    }

    /* Back to Top */
    .back-to-top {
      position: fixed;
      bottom: 32px;
      right: 32px;
      width: 48px;
      height: 48px;
      background: var(--text-primary);
      color: var(--white);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 100;
      opacity: 0;
      pointer-events: none;
      transform: translateY(12px);
      transition: all var(--transition);
      box-shadow: var(--shadow-md);
    }

    .back-to-top.visible {
      opacity: 1;
      pointer-events: all;
      transform: translateY(0);
    }

    .back-to-top:hover {
      transform: translateY(-2px);
    }

    /* Animations */
    .reveal {
      opacity: 0;
      transform: translateY(32px);
      transition: opacity 0.8s ease, transform 0.8s ease;
    }

    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }

    .reveal-left {
      opacity: 0;
      transform: translateX(-32px);
      transition: opacity 0.8s ease, transform 0.8s ease;
    }

    .reveal-left.visible {
      opacity: 1;
      transform: translateX(0);
    }

    .reveal-right {
      opacity: 0;
      transform: translateX(32px);
      transition: opacity 0.8s ease, transform 0.8s ease;
    }

    .reveal-right.visible {
      opacity: 1;
      transform: translateX(0);
    }

    .stagger-children>* {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.6s ease, transform 0.6s ease;
    }

    .stagger-children.visible>*:nth-child(1) {
      transition-delay: 0s;
      opacity: 1;
      transform: translateY(0);
    }

    .stagger-children.visible>*:nth-child(2) {
      transition-delay: 0.08s;
      opacity: 1;
      transform: translateY(0);
    }

    .stagger-children.visible>*:nth-child(3) {
      transition-delay: 0.16s;
      opacity: 1;
      transform: translateY(0);
    }

    .stagger-children.visible>*:nth-child(4) {
      transition-delay: 0.24s;
      opacity: 1;
      transform: translateY(0);
    }

    .stagger-children.visible>*:nth-child(5) {
      transition-delay: 0.32s;
      opacity: 1;
      transform: translateY(0);
    }

    .stagger-children.visible>*:nth-child(6) {
      transition-delay: 0.4s;
      opacity: 1;
      transform: translateY(0);
    }

    /* Quote Modal */
    .quote-modal {
      position: fixed;
      inset: 0;
      z-index: 3000;
      display: flex;
      align-items: center;
      justify-content: center;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.4s ease;
    }

    .quote-modal.open {
      opacity: 1;
      pointer-events: all;
    }

    .quote-modal-overlay {
      position: absolute;
      inset: 0;
      background: rgba(0, 0, 0, 0.6);
      backdrop-filter: blur(4px);
    }

    .quote-modal-content {
      position: relative;
      background: var(--white);
      width: 92%;
      max-width: 860px;
      border-radius: var(--radius);
      z-index: 1;
      transform: translateY(30px) scale(0.97);
      transition: transform 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
      overflow: hidden;
      box-shadow: 0 24px 80px rgba(0, 0, 0, 0.18);
    }

    .quote-modal.open .quote-modal-content {
      transform: translateY(0) scale(1);
    }

    .quote-modal-inner {
      display: grid;
      grid-template-columns: 1fr 1fr;
      min-height: 460px;
    }

    .quote-modal-left {
      background: var(--bg-dark);
      color: var(--white);
      padding: 52px 44px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .quote-modal-left .overline {
      color: rgba(255, 255, 255, 0.45);
      margin-bottom: 24px;
    }

    .quote-modal-left h2 {
      font-size: 30px;
      font-weight: 700;
      line-height: 1.25;
      letter-spacing: -0.02em;
      margin-bottom: 20px;
    }

    .quote-modal-left>p {
      font-size: 15px;
      color: rgba(255, 255, 255, 0.6);
      line-height: 1.8;
      margin-bottom: 40px;
    }

    .quote-modal-contact-info {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 28px;
    }

    .quote-modal-contact-item {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 18px;
    }

    .quote-modal-contact-item:last-child {
      margin-bottom: 0;
    }

    .quote-modal-contact-icon {
      width: 36px;
      height: 36px;
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      color: rgba(255, 255, 255, 0.7);
    }

    .quote-modal-contact-item span {
      font-size: 15px;
      color: rgba(255, 255, 255, 0.85);
      font-weight: 400;
    }

    .quote-modal-right {
      padding: 52px 44px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .quote-modal-right h3 {
      font-size: 22px;
      font-weight: 700;
      margin-bottom: 8px;
      letter-spacing: -0.01em;
    }

    .quote-modal-right>p {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 32px;
    }

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

    .quote-modal-form .form-group label {
      display: block;
      font-size: 13px;
      font-weight: 500;
      margin-bottom: 8px;
      color: var(--text-primary);
    }

    .quote-modal-form .form-group input,
    .quote-modal-form .form-group textarea {
      width: 100%;
      padding: 14px 16px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: var(--white);
      color: var(--text-primary);
      font-size: 15px;
      transition: border-color var(--transition);
      outline: none;
    }

    .quote-modal-form .form-group input:focus,
    .quote-modal-form .form-group textarea:focus {
      border-color: var(--text-primary);
    }

    .quote-modal-form .form-group textarea {
      resize: vertical;
      min-height: 80px;
    }

    .quote-modal-form .form-group .error-msg {
      font-size: 12px;
      color: #e53e3e;
      margin-top: 6px;
      display: none;
    }

    .quote-modal-form .form-group.has-error input,
    .quote-modal-form .form-group.has-error textarea {
      border-color: #e53e3e;
    }

    .quote-modal-form .form-group.has-error .error-msg {
      display: block;
    }

    .quote-modal-form .btn {
      width: 100%;
      justify-content: center;
      margin-top: 4px;
    }

    .quote-modal-close {
      position: absolute;
      top: 20px;
      right: 20px;
      width: 40px;
      height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(0, 0, 0, 0.06);
      border-radius: 50%;
      z-index: 2;
      color: var(--text-muted);
      transition: all var(--transition);
      cursor: pointer;
    }

    .quote-modal-close:hover {
      background: rgba(0, 0, 0, 0.12);
      color: var(--text-primary);
    }

    .quote-modal-success {
      display: none;
      text-align: center;
      padding: 60px 44px;
    }

    .quote-modal-success.show {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      min-height: 460px;
    }

    .quote-modal-success .success-icon {
      width: 72px;
      height: 72px;
      margin-bottom: 24px;
      color: #22c55e;
    }

    .quote-modal-success h3 {
      font-size: 24px;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .quote-modal-success p {
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.7;
    }

    .form-success {
      display: none;
      text-align: center;
      padding: 48px 32px;
    }

    .form-success.show {
      display: block;
    }

    .form-success .success-icon {
      width: 64px;
      height: 64px;
      margin: 0 auto 20px;
      color: #22c55e;
    }

    .form-success h3 {
      font-size: 22px;
      margin-bottom: 8px;
    }

    .form-success p {
      color: var(--text-secondary);
      font-size: 15px;
    }

    /* Side Tools */
    .side-tools {
      position: fixed;
      right: 28px;
      top: 50%;
      transform: translateY(-50%);
      z-index: 950;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .side-tool-btn {
      width: 52px;
      height: 52px;
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: all var(--transition);
      color: var(--text-primary);
      position: relative;
      box-shadow: var(--shadow-sm);
      padding: 0;
    }

    .side-tool-btn:hover {
      background: var(--text-primary);
      color: var(--white);
      border-color: var(--text-primary);
      transform: scale(1.08);
      box-shadow: var(--shadow-md);
    }

    .side-tool-label {
      position: absolute;
      right: 62px;
      white-space: nowrap;
      background: var(--text-primary);
      color: var(--white);
      padding: 6px 14px;
      border-radius: var(--radius);
      font-size: 13px;
      font-weight: 500;
      opacity: 0;
      pointer-events: none;
      transform: translateX(8px);
      transition: all var(--transition);
      box-shadow: var(--shadow-sm);
    }

    .side-tool-label::after {
      content: '';
      position: absolute;
      right: -6px;
      top: 50%;
      transform: translateY(-50%);
      width: 0;
      height: 0;
      border-top: 6px solid transparent;
      border-bottom: 6px solid transparent;
      border-left: 6px solid var(--text-primary);
    }

    .side-tool-btn:hover .side-tool-label {
      opacity: 1;
      transform: translateX(0);
    }

    /* Mobile Bottom Tools */
    .mobile-tools {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      z-index: 950;
      background: var(--white);
      border-top: 1px solid var(--border);
      box-shadow: 0 -2px 20px rgba(0, 0, 0, 0.06);
    }

    .mobile-tools-inner {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      height: 56px;
    }

    .mobile-tool-btn {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 2px;
      cursor: pointer;
      transition: all var(--transition);
      color: var(--text-secondary);
      padding: 0;
      font-size: 11px;
      font-weight: 500;
      font-family: var(--font-cn);
    }

    .mobile-tool-btn:hover {
      color: var(--text-primary);
      background: var(--bg-alt);
    }

    .mobile-tool-btn:active {
      background: var(--border);
    }

    /* Info Modal */
    .info-modal {
      position: fixed;
      inset: 0;
      z-index: 2500;
      display: flex;
      align-items: center;
      justify-content: center;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.4s ease;
    }

    .info-modal.open {
      opacity: 1;
      pointer-events: all;
    }

    .info-modal-overlay {
      position: absolute;
      inset: 0;
      background: rgba(0, 0, 0, 0.6);
      backdrop-filter: blur(4px);
    }

    .info-modal-content {
      position: relative;
      background: var(--white);
      width: 90%;
      max-width: 420px;
      border-radius: var(--radius);
      z-index: 1;
      transform: translateY(20px) scale(0.97);
      transition: transform 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
      overflow: hidden;
      box-shadow: 0 24px 80px rgba(0, 0, 0, 0.18);
    }

    .info-modal.open .info-modal-content {
      transform: translateY(0) scale(1);
    }

    .info-modal-close {
      position: absolute;
      top: 16px;
      right: 16px;
      width: 36px;
      height: 36px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(0, 0, 0, 0.06);
      border-radius: 50%;
      z-index: 2;
      color: var(--text-muted);
      transition: all var(--transition);
      cursor: pointer;
      padding: 0;
      border: none;
    }

    .info-modal-close:hover {
      background: rgba(0, 0, 0, 0.12);
      color: var(--text-primary);
    }

    .info-panel {
      display: none;
      padding: 48px 40px;
    }

    .info-panel.active {
      display: block;
    }

    .info-panel-header {
      text-align: center;
      margin-bottom: 32px;
    }

    .info-panel-icon {
      width: 60px;
      height: 60px;
      background: var(--bg-alt);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 20px;
      color: var(--text-primary);
    }

    .info-panel-header h3 {
      font-size: 22px;
      font-weight: 700;
      margin-bottom: 6px;
      letter-spacing: -0.01em;
    }

    .info-panel-header p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    .wechat-qr-wrapper {
      display: flex;
      justify-content: center;
      margin-bottom: 24px;
    }

    .wechat-qr {
      width: 192px;
      height: 192px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--white);
    }

    .wechat-qr img,
    .wechat-qr svg {
      width: 100%;
      height: 100%;
    }

    .wechat-id-row {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 12px;
      padding: 12px 16px;
      background: var(--bg-alt);
      border-radius: var(--radius);
    }

    .wechat-id-label {
      font-size: 13px;
      color: var(--text-muted);
      flex-shrink: 0;
    }

    .wechat-id-value {
      font-family: var(--font-en);
      font-size: 15px;
      font-weight: 600;
      color: var(--text-primary);
      user-select: all;
      letter-spacing: 0.01em;
    }

    .copy-btn {
      padding: 5px 14px;
      font-size: 12px;
      font-weight: 500;
      font-family: var(--font-cn);
      background: var(--text-primary);
      color: var(--white);
      border: none;
      border-radius: 100px;
      cursor: pointer;
      transition: all var(--transition);
      flex-shrink: 0;
    }

    .copy-btn:hover {
      background: var(--accent-hover);
    }

    .copy-btn.copied {
      background: #22c55e;
    }

    .info-contact-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .info-contact-item {
      display: flex;
      align-items: center;
      gap: 16px;
      padding: 16px 18px;
      background: var(--bg-alt);
      border-radius: var(--radius);
      transition: all var(--transition);
      text-decoration: none;
      color: inherit;
    }

    .info-contact-item:hover {
      background: var(--white);
      box-shadow: var(--shadow-sm);
    }

    .info-contact-icon {
      width: 44px;
      height: 44px;
      background: var(--white);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      color: var(--text-primary);
    }

    .info-contact-text h4 {
      font-size: 12px;
      font-weight: 500;
      color: var(--text-muted);
      margin-bottom: 3px;
    }

    .info-contact-text p {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-primary);
      line-height: 1.3;
    }

    .info-address-map {
      width: 100%;
      height: 200px;
      background: linear-gradient(135deg, #e8e8e8 0%, #d0d0d0 100%);
      border-radius: var(--radius);
      margin-bottom: 24px;
      position: relative;
      overflow: hidden;
    }
    .info-address-map iframe {
      width: 100%;
      height: 100%;
      border: 0;
      display: block;
    }

    .info-address-card {
      display: flex;
      align-items: flex-start;
      gap: 16px;
      padding: 20px;
      background: var(--bg-alt);
      border-radius: var(--radius);
    }

    .info-address-card .addr-icon {
      width: 44px;
      height: 44px;
      background: var(--white);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      color: var(--text-primary);
    }

    .info-address-card h4 {
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 4px;
    }

    .info-address-card p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* Why Choose Us */
    .why-item {
      opacity: 1;
    }

    .why-number {
      font-family: var(--font-en);
      font-size: 64px;
      font-weight: 700;
      letter-spacing: -0.04em;
      line-height: 1;
      color: var(--border);
      margin-bottom: 20px;
    }

    .why-line {
      width: 32px;
      height: 3px;
      background: var(--text-primary);
      margin-bottom: 24px;
      border-radius: 2px;
    }

    .why-item h3 {
      font-size: 20px;
      font-weight: 600;
      color: var(--text-primary);
      margin-bottom: 14px;
    }

    .why-item p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.8;
    }

    /* ========================================
   Responsive
   ======================================== */
    @media (max-width: 1024px) {
      :root {
        --section-pad: 100px;
        --grid-gap: 32px;
      }

      .section-title {
        font-size: 34px;
      }

      .section-number {
        font-size: 60px;
      }

      .services-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
      }

      .stat-item:not(:last-child)::after {
        display: none;
      }

      .values-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .honors-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .team-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .partner-tiers {
        grid-template-columns: 1fr;
        max-width: 440px;
        margin-left: auto;
        margin-right: auto;
      }

      .eco-group-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }

      .why-item .why-number {
        font-size: 48px;
      }
    }

    @media (max-width: 768px) {
      :root {
        --section-pad: 80px;
        --nav-height: 60px;
      }

      .nav-links,
      .nav-cta {
        display: none;
      }

      .nav-menu-btn {
        display: flex;
      }

      .mobile-menu {
        display: flex;
      }

      .section-title {
        font-size: 28px;
      }

      .section-number {
        font-size: 48px;
      }

      .grid-2,
      .about-intro,
      .solution-content,
      .contact-grid,
      .partners-intro {
        grid-template-columns: 1fr;
        gap: 40px;
      }

      .about-intro-img {
        height: 300px;
      }

      .grid-3,
      .services-grid,
      .cases-grid,
      .news-preview-grid,
      .news-full-grid {
        grid-template-columns: 1fr;
      }

      .stats-grid {
        grid-template-columns: 1fr 1fr;
      }

      .values-grid,
      .honors-grid {
        grid-template-columns: 1fr;
      }

      .team-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
      }

      .carousel-slide-content {
        padding: 0 32px;
      }

      .carousel-slide-content h1 {
        font-size: 36px;
      }

      .carousel-slide-content p {
        font-size: 15px;
      }

      .carousel-arrow {
        display: none;
      }

      .scroll-indicator {
        display: none;
      }

      .solutions-tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        flex-wrap: nowrap;
      }

      .solution-tab {
        white-space: nowrap;
        padding: 14px 20px;
        font-size: 13px;
      }

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

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }

      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }

      .side-tools {
        display: none !important;
      }

      .mobile-tools {
        display: block;
      }

      .back-to-top {
        bottom: 76px;
        right: 20px;
      }

      .info-panel {
        padding: 36px 24px;
      }

      .info-modal-content {
        max-width: 360px;
      }

      .eco-ring-1 {
        width: 220px;
        height: 220px;
      }

      .eco-ring-2 {
        width: 340px;
        height: 340px;
      }

      .eco-node {
        width: 80px;
        height: 80px;
        font-size: 10px;
      }

      .eco-center {
        width: 100px;
        height: 100px;
        font-size: 13px;
      }

      .quote-modal-inner {
        grid-template-columns: 1fr;
      }

      .quote-modal-left {
        padding: 40px 32px 32px;
      }

      .quote-modal-left>p {
        margin-bottom: 24px;
      }

      .quote-modal-right {
        padding: 32px;
      }

      .quote-modal-content {
        max-height: 90vh;
        overflow-y: auto;
      }

      .stagger-children:has(.why-item) {
        grid-template-columns: 1fr 1fr !important;
        gap: 32px 24px !important;
      }
    }

    @media (max-width: 480px) {
      .container {
        padding: 0 20px;
      }

      .hero {
        min-height: 600px;
      }

      .carousel-slide-content h1 {
        font-size: 30px;
      }

      .stat-number {
        font-size: 40px;
      }

      .services-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
      }

      .news-preview-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
      }

      .team-grid {
        grid-template-columns: 1fr;
      }

      .quote-modal-left {
        padding: 32px 24px 24px;
      }

      .quote-modal-right {
        padding: 24px;
      }

      .quote-modal-left h2 {
        font-size: 24px;
      }

      .info-modal-content {
        max-width: 92%;
      }

      .info-panel {
        padding: 32px 20px;
      }

      .wechat-qr {
        width: 168px;
        height: 168px;
      }

      .stagger-children:has(.why-item) {
        grid-template-columns: 1fr !important;
      }

      .why-item .why-number {
        font-size: 40px;
      }
    }