:root {
      --primary: #0891B2;
      --primary-hover: #0e7490;
      --secondary: #14B8A6;
      --secondary-hover: #0f766e;
      --bg-light: #ECFEFF;
      --bg-dark: #062A31;
      --text-main: #083344;
      --text-muted: #334155;
      --accent: #99F6E4;
      --white: #ffffff;
      --border-color: rgba(15, 23, 42, 0.08);
      --shadow-sm: 0 2px 8px rgba(8, 145, 178, 0.06);
      --shadow-md: 0 10px 30px rgba(8, 145, 178, 0.1);
      --shadow-lg: 0 20px 40px rgba(6, 42, 49, 0.15);
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      --base-blue: rgb(0,122,255); 
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      color: var(--text-main);
      background-color: #fcfdfd;
      line-height: 1.6;
      overflow-x: hidden;
    }

    
    .site-header {
      position: sticky;
      top: 0;
      z-index: 900;
      width: 100%;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .header-inner {
      width: min(1200px, calc(100% - 32px));
      margin: 0 auto;
      min-height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
      min-width: 0;
      flex-shrink: 0;
    }

    .logo img {
      display: block;
      height: 40px;
      width: auto;
      max-width: 160px;
      object-fit: contain;
      flex-shrink: 0;
    }

    .logo span {
      display: inline-block;
      font-size: 18px;
      font-weight: 800;
      line-height: 1.2;
      color: var(--text-main);
      white-space: nowrap;
      max-width: 180px;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .desktop-nav {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 8px;
      min-width: 0;
    }

    .desktop-nav a {
      display: inline-flex;
      align-items: center;
      min-height: 40px;
      padding: 0 14px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 600;
      color: var(--text-muted);
      text-decoration: none;
      white-space: nowrap;
      transition: var(--transition);
    }

    .desktop-nav a:hover, .desktop-nav a.active {
      color: var(--primary);
      background: var(--bg-light);
    }

    .mobile-menu-btn {
      display: none;
      width: 44px;
      height: 44px;
      border: 0;
      border-radius: 14px;
      background: rgba(15, 23, 42, 0.08);
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
      flex-shrink: 0;
    }

    .mobile-menu-btn span {
      display: block;
      width: 20px;
      height: 2px;
      border-radius: 99px;
      background: var(--text-main);
    }

    
    .mobile-nav-mask {
      position: fixed;
      inset: 0;
      z-index: 998;
      background: rgba(15, 23, 42, 0.54);
      opacity: 0;
      visibility: hidden;
      pointer-events: none;
      transition: opacity 0.25s ease, visibility 0.25s ease;
    }

    .mobile-drawer {
      position: fixed;
      top: 0;
      left: 0;
      z-index: 999;
      width: min(86vw, 360px);
      height: 100vh;
      height: 100dvh;
      background: #ffffff;
      color: var(--text-main);
      transform: translateX(-105%);
      transition: transform 0.28s ease;
      box-shadow: 24px 0 60px rgba(15, 23, 42, 0.22);
      display: flex;
      flex-direction: column;
      overflow: hidden;
    }

    .drawer-head {
      min-height: 76px;
      padding: 18px 18px 14px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      border-bottom: 1px solid var(--border-color);
      flex-shrink: 0;
    }

    .drawer-logo img {
      height: 36px;
      max-width: 130px;
    }

    .drawer-logo span {
      max-width: 150px;
      font-size: 17px;
    }

    .drawer-close {
      width: 40px;
      height: 40px;
      border: 0;
      border-radius: 14px;
      background: rgba(15, 23, 42, 0.08);
      color: var(--text-main);
      font-size: 26px;
      line-height: 1;
      cursor: pointer;
      flex-shrink: 0;
    }

    .drawer-body {
      flex: 1;
      overflow-y: auto;
      -webkit-overflow-scrolling: touch;
      padding: 14px;
    }

    .drawer-nav {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .drawer-nav a {
      display: flex;
      align-items: center;
      width: 100%;
      min-height: 48px;
      padding: 13px 14px;
      border-radius: 14px;
      background: rgba(15, 23, 42, 0.04);
      color: var(--text-main);
      text-decoration: none;
      font-size: 15px;
      font-weight: 700;
      line-height: 1.35;
      word-break: break-word;
      overflow-wrap: anywhere;
      transition: var(--transition);
    }

    .drawer-nav a:hover {
      background: var(--bg-light);
      color: var(--primary);
    }

    body.drawer-open {
      overflow: hidden;
      touch-action: none;
    }

    body.drawer-open .mobile-nav-mask {
      opacity: 1;
      visibility: visible;
      pointer-events: auto;
    }

    body.drawer-open .mobile-drawer {
      transform: translateX(0);
    }

    
    .hero-layout-07 {
      position: relative;
      background: linear-gradient(135deg, var(--bg-dark) 0%, #03171c 100%);
      color: var(--white);
      padding: 80px 0 100px;
      text-align: center;
      overflow: hidden;
    }

    .hero-layout-07::before {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 50% 10%, rgba(20, 184, 166, 0.15) 0%, transparent 60%);
      pointer-events: none;
    }

    .hero-container {
      width: min(1200px, calc(100% - 32px));
      margin: 0 auto;
      position: relative;
      z-index: 10;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      padding: 8px 16px;
      background: rgba(20, 184, 166, 0.12);
      border: 1px solid rgba(20, 184, 166, 0.3);
      border-radius: 99px;
      color: var(--accent);
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 0.05em;
      margin-bottom: 24px;
      text-transform: uppercase;
    }

    .hero-title {
      font-size: clamp(32px, 5vw, 56px);
      line-height: 1.2;
      font-weight: 800;
      color: var(--white);
      max-width: 900px;
      margin: 0 auto 20px;
    }

    .hero-title span {
      background: linear-gradient(to right, #22d3ee, #14b8a6);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-subtitle {
      font-size: clamp(16px, 2vw, 19px);
      color: rgba(236, 254, 255, 0.8);
      max-width: 720px;
      margin: 0 auto 36px;
      line-height: 1.7;
    }

    .hero-cta-group {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 16px;
      margin-bottom: 70px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 52px;
      padding: 0 32px;
      border-radius: 12px;
      font-size: 16px;
      font-weight: 700;
      text-decoration: none;
      cursor: pointer;
      transition: var(--transition);
    }

    .btn-primary {
      background: var(--secondary);
      color: var(--bg-dark);
      border: none;
      box-shadow: 0 4px 20px rgba(20, 184, 166, 0.3);
    }

    .btn-primary:hover {
      background: #2dd4bf;
      transform: translateY(-2px);
      box-shadow: 0 6px 24px rgba(20, 184, 166, 0.42);
    }

    .btn-outline {
      background: transparent;
      color: var(--white);
      border: 1.5px solid rgba(255, 255, 255, 0.25);
    }

    .btn-outline:hover {
      background: rgba(255, 255, 255, 0.08);
      border-color: var(--white);
      transform: translateY(-2px);
    }

    
    .flow-path {
      margin-top: 20px;
      position: relative;
    }

    .flow-title {
      font-size: 14px;
      font-weight: 700;
      color: var(--secondary);
      text-transform: uppercase;
      letter-spacing: 0.1em;
      margin-bottom: 40px;
    }

    .flow-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 20px;
      position: relative;
    }

    
    .flow-line {
      position: absolute;
      top: 50px;
      left: 10%;
      right: 10%;
      height: 2px;
      background: linear-gradient(to right, rgba(20, 184, 166, 0.1), var(--secondary), rgba(20, 184, 166, 0.1));
      z-index: 1;
    }

    .flow-node {
      position: relative;
      z-index: 5;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
    }

    .node-icon-wrapper {
      position: relative;
      width: 100px;
      height: 100px;
      border-radius: 50%;
      background: rgba(8, 145, 178, 0.2);
      border: 2px dashed rgba(20, 184, 166, 0.4);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      transition: var(--transition);
    }

    .flow-node:hover .node-icon-wrapper {
      border-color: var(--secondary);
      background: rgba(20, 184, 166, 0.15);
      transform: scale(1.08);
    }

    .node-number {
      position: absolute;
      top: -6px;
      right: -6px;
      width: 28px;
      height: 28px;
      background: var(--secondary);
      color: var(--bg-dark);
      border-radius: 50%;
      font-size: 12px;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 3px 6px rgba(0,0,0,0.2);
    }

    .node-icon-wrapper svg {
      width: 44px;
      height: 44px;
      fill: var(--accent);
      transition: var(--transition);
    }

    .flow-node:hover svg {
      fill: var(--white);
    }

    .node-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--white);
      margin-bottom: 8px;
    }

    .node-desc {
      font-size: 13px;
      color: rgba(236, 254, 255, 0.65);
      line-height: 1.5;
      padding: 0 10px;
    }

    
    .stats-strip {
      background: var(--bg-light);
      padding: 30px 0;
      border-bottom: 1px solid var(--border-color);
    }

    .stats-container {
      width: min(1200px, calc(100% - 32px));
      margin: 0 auto;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }

    .stat-item h3 {
      font-size: 32px;
      font-weight: 800;
      color: var(--primary);
    }

    .stat-item p {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 600;
    }

    
    .section-padd {
      padding: 80px 0;
    }

    .section-title-wrap {
      text-align: center;
      margin-bottom: 48px;
    }

    .section-subtitle {
      color: var(--primary);
      font-weight: 700;
      font-size: 14px;
      text-transform: uppercase;
      letter-spacing: 0.1em;
      margin-bottom: 10px;
      display: block;
    }

    .section-title {
      font-size: clamp(24px, 4vw, 36px);
      font-weight: 800;
      color: var(--text-main);
    }

    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .card {
      background: var(--white);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 32px;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
    }

    .card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      border-color: rgba(8, 145, 178, 0.2);
    }

    .card-icon {
      width: 56px;
      height: 56px;
      border-radius: 12px;
      background: var(--bg-light);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 24px;
    }

    .card-icon svg {
      width: 28px;
      height: 28px;
      fill: var(--primary);
    }

    .card-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .card-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    
    .calc-section {
      background: var(--bg-dark);
      color: var(--white);
    }

    .calc-container {
      width: min(1200px, calc(100% - 32px));
      margin: 0 auto;
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 60px;
      align-items: center;
    }

    .calc-info h2 {
      font-size: clamp(28px, 4vw, 40px);
      font-weight: 800;
      margin-bottom: 20px;
      line-height: 1.2;
    }

    .calc-info h2 span {
      color: var(--accent);
    }

    .calc-info p {
      font-size: 16px;
      color: rgba(236, 254, 255, 0.8);
      margin-bottom: 24px;
    }

    .calc-box {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 24px;
      padding: 40px;
      backdrop-filter: blur(8px);
    }

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

    .form-group label {
      display: block;
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--accent);
    }

    .form-group select, .form-group input {
      width: 100%;
      height: 48px;
      border-radius: 8px;
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.2);
      color: var(--white);
      padding: 0 16px;
      font-size: 15px;
      outline: none;
      transition: var(--transition);
    }

    .form-group select:focus, .form-group input:focus {
      border-color: var(--secondary);
      background: rgba(255, 255, 255, 0.15);
    }

    .calc-result {
      margin-top: 30px;
      padding-top: 24px;
      border-top: 1px dashed rgba(255,255,255,0.2);
      text-align: center;
    }

    .result-num {
      font-size: 38px;
      font-weight: 800;
      color: var(--secondary);
      margin-bottom: 4px;
    }

    
    .article-section {
      background: #f7fafb;
    }

    .article-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
      margin-bottom: 40px;
    }

    .art-card {
      background: var(--white);
      border-radius: 16px;
      border: 1px solid var(--border-color);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .art-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
    }

    .art-img-wrap {
      width: 100%;
      aspect-ratio: 16 / 10;
      background: #f1f5f9;
      position: relative;
      overflow: hidden;
    }

    .art-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }

    .art-card:hover .art-img-wrap img {
      transform: scale(1.05);
    }

    .art-tag {
      position: absolute;
      top: 12px;
      left: 12px;
      background: var(--primary);
      color: var(--white);
      font-size: 11px;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: 4px;
    }

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

    .art-meta {
      display: flex;
      align-items: center;
      gap: 16px;
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 12px;
    }

    .art-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.4;
      margin-bottom: 10px;
      text-decoration: none;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      transition: var(--transition);
    }

    .art-title:hover {
      color: var(--primary);
    }

    .art-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .art-foot {
      margin-top: auto;
      padding-top: 16px;
      border-top: 1px solid var(--border-color);
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      font-weight: 600;
    }

    .art-more {
      color: var(--primary);
      text-decoration: none;
    }

    
    .cta-banner {
      background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
      color: var(--white);
      padding: 60px 0;
      text-align: center;
    }

    .cta-content {
      width: min(800px, calc(100% - 32px));
      margin: 0 auto;
    }

    .cta-content h2 {
      font-size: clamp(24px, 4vw, 36px);
      font-weight: 800;
      margin-bottom: 16px;
    }

    .cta-content p {
      font-size: 16px;
      opacity: 0.9;
      margin-bottom: 24px;
    }

    .cta-content .btn {
      background: var(--white);
      color: var(--primary);
      box-shadow: var(--shadow-md);
    }

    .cta-content .btn:hover {
      background: var(--bg-light);
      transform: translateY(-2px);
    }

    
    .site-footer {
      position: relative;
      background: var(--bg-dark);
      color: #e5e7eb;
      padding: 56px 0 24px;
      overflow: hidden;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
    }

    .footer-inner {
      width: min(1200px, calc(100% - 32px));
      margin: 0 auto;
      display: grid;
      grid-template-columns: 1.4fr repeat(3, minmax(0, 1fr));
      gap: 32px;
      align-items: start;
    }

    .footer-brand p {
      margin: 16px 0 0;
      color: rgba(229, 231, 235, 0.72);
      line-height: 1.8;
      font-size: 14px;
    }

    .footer-logo span {
      color: var(--white);
    }

    .footer-column h3 {
      margin: 0 0 14px;
      font-size: 15px;
      color: var(--white);
    }

    .footer-column ul {
      list-style: none;
      margin: 0;
      padding: 0;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-column a,
    .footer-column span {
      color: rgba(229, 231, 235, 0.72);
      text-decoration: none;
      font-size: 14px;
      line-height: 1.5;
      word-break: break-word;
      overflow-wrap: anywhere;
      transition: var(--transition);
    }

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

    .footer-bottom {
      width: min(1200px, calc(100% - 32px));
      margin: 32px auto 0;
      padding-top: 20px;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      color: rgba(229, 231, 235, 0.62);
      font-size: 13px;
    }

    .footer-bottom p {
      margin: 0;
    }

    .footer-bottom a {
      color: rgba(229, 231, 235, 0.72);
      text-decoration: none;
      word-break: break-word;
      overflow-wrap: anywhere;
    }

    
    @media (max-width: 900px) {
      .header-inner {
        width: min(100% - 24px, 1200px);
        min-height: 64px;
        gap: 12px;
      }

      .desktop-nav {
        display: none !important;
      }

      .mobile-menu-btn {
        display: inline-flex !important;
      }

      .logo img {
        height: 34px;
        max-width: 120px;
      }

      .logo span {
        font-size: 16px;
        max-width: 150px;
      }

      .flow-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }

      .flow-line {
        display: none;
      }

      .flow-node {
        flex-direction: row;
        text-align: left;
        align-items: flex-start;
        background: rgba(255,255,255,0.03);
        border: 1px solid rgba(255,255,255,0.08);
        padding: 16px;
        border-radius: 12px;
      }

      .node-icon-wrapper {
        width: 60px;
        height: 60px;
        margin-bottom: 0;
        margin-right: 16px;
        flex-shrink: 0;
      }

      .node-icon-wrapper svg {
        width: 28px;
        height: 28px;
      }

      .grid-3, .article-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }

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

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

      .footer-inner {
        grid-template-columns: 1fr;
        gap: 24px;
      }

      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
      }
    }

    @media (max-width: 420px) {
      .mobile-drawer {
        width: 88vw;
      }

      .logo span, .drawer-logo span {
        max-width: 120px;
      }

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