:root {
      --primary: #0056B3;
      --primary-dark: #003B7A;
      --primary-deep: #062F63;
      --primary-soft: #F0F7FF;
      --primary-soft-2: #E6F1FD;
      --accent: #FF9800;
      --accent-dark: #E18400;
      --accent-soft: #FFF4E3;
      --text: #263442;
      --text-2: #4B5B6B;
      --muted: #6A7786;
      --line: #DDE7F2;
      --line-2: #E8EEF5;
      --bg: #F8F9FA;
      --white: #FFFFFF;
      --shadow: 0 10px 30px rgba(0, 55, 120, 0.08);
      --shadow-2: 0 18px 42px rgba(0, 55, 120, 0.12);
      --container: 1180px;
      --radius: 10px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
      scroll-padding-top: 96px;
    }

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
      background: var(--white);
      color: var(--text);
      font-size: 17px;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

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

    button,
    input {
      font: inherit;
    }

    .container {
      width: min(var(--container), calc(100% - 40px));
      margin: 0 auto;
    }

    .top-notice {
      background: var(--primary-dark);
      color: rgba(255, 255, 255, 0.88);
      font-size: 14px;
      line-height: 1;
    }

    .top-notice-inner {
      height: 36px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 24px;
    }

    .top-notice strong {
      color: #fff;
      font-weight: 700;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 80;
      background: rgba(255, 255, 255, 0.98);
      border-bottom: 1px solid var(--line);
      box-shadow: 0 4px 16px rgba(0, 40, 90, 0.05);
      backdrop-filter: blur(8px);
    }

    .nav {
      height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 6px;
      background: var(--primary);
      color: #fff;
      display: grid;
      place-items: center;
      font-weight: 900;
      font-size: 19px;
      letter-spacing: 0.04em;
      position: relative;
      overflow: hidden;
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      right: -10px;
      bottom: -10px;
      width: 28px;
      height: 28px;
      background: var(--accent);
      transform: rotate(45deg);
    }

    .brand-name {
      color: var(--primary-dark);
      font-size: 21px;
      font-weight: 850;
      letter-spacing: 0.02em;
      line-height: 1.1;
    }

    .brand-sub {
      margin-top: 4px;
      color: var(--muted);
      font-size: 12px;
      font-weight: 600;
      line-height: 1.1;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 34px;
      color: var(--text);
      font-size: 16px;
      font-weight: 650;
    }

    .nav-links a {
      position: relative;
      padding: 26px 0;
    }

    .nav-links a::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 18px;
      width: 100%;
      height: 3px;
      background: var(--accent);
      transform: scaleX(0);
      transform-origin: center;
      transition: transform 0.18s ease;
    }

    .nav-links a:hover {
      color: var(--primary);
    }

    .nav-links a:hover::after {
      transform: scaleX(1);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 46px;
      padding: 0 22px;
      border-radius: 4px;
      border: 1px solid transparent;
      cursor: pointer;
      font-weight: 750;
      font-size: 16px;
      white-space: nowrap;
      transition: all 0.2s ease;
      text-align: center;
    }

    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 10px 20px rgba(0, 86, 179, 0.17);
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      box-shadow: 0 14px 30px rgba(0, 86, 179, 0.22);
      transform: translateY(-1px);
    }

    .btn-accent {
      background: var(--accent);
      color: #fff;
      box-shadow: 0 10px 20px rgba(255, 152, 0, 0.18);
    }

    .btn-accent:hover {
      background: var(--accent-dark);
      box-shadow: 0 14px 30px rgba(255, 152, 0, 0.24);
      transform: translateY(-1px);
    }

    .btn-outline {
      background: #fff;
      color: var(--primary);
      border-color: rgba(0, 86, 179, 0.30);
    }

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

    .menu-btn {
      display: none;
      width: 42px;
      height: 42px;
      border: 1px solid var(--line);
      border-radius: 4px;
      background: #fff;
      cursor: pointer;
      align-items: center;
      justify-content: center;
    }

    .menu-btn span,
    .menu-btn span::before,
    .menu-btn span::after {
      display: block;
      width: 20px;
      height: 2px;
      background: var(--primary-dark);
      position: relative;
      content: "";
    }

    .menu-btn span::before {
      position: absolute;
      top: -7px;
    }

    .menu-btn span::after {
      position: absolute;
      top: 7px;
    }

    .mobile-menu {
      display: none;
      background: #fff;
      border-top: 1px solid var(--line);
      padding: 8px 0 18px;
    }

    .mobile-menu a {
      display: block;
      padding: 13px 0;
      border-bottom: 1px solid var(--line-2);
      color: var(--text);
      font-weight: 700;
    }

    .hero {
      background:
        linear-gradient(90deg, rgba(248,249,250,0.96), rgba(248,249,250,0.92)),
        linear-gradient(135deg, #fff 0%, #fff 48%, var(--primary-soft) 48%, var(--primary-soft) 100%);
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid var(--line-2);
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(90deg, rgba(0,86,179,0.05) 1px, transparent 1px),
        linear-gradient(0deg, rgba(0,86,179,0.04) 1px, transparent 1px);
      background-size: 78px 78px;
      pointer-events: none;
    }

    .hero-inner {
      position: relative;
      z-index: 1;
      min-height: 648px;
      display: grid;
      grid-template-columns: 1fr 0.95fr;
      align-items: center;
      gap: 64px;
      padding: 84px 0;
    }

    .label {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      border-left: 4px solid var(--accent);
      background: #fff;
      color: var(--primary-dark);
      padding: 8px 14px;
      font-size: 15px;
      font-weight: 800;
      box-shadow: 0 8px 22px rgba(0, 55, 120, 0.06);
      margin-bottom: 22px;
    }

    h1,
    h2,
    h3,
    p {
      margin-top: 0;
    }

    .hero-title {
      color: var(--primary-deep);
      font-size: clamp(38px, 5vw, 58px);
      line-height: 1.14;
      letter-spacing: -0.035em;
      font-weight: 900;
      margin-bottom: 18px;
    }

    .hero-sub {
      color: var(--primary);
      font-size: clamp(22px, 2.4vw, 29px);
      font-weight: 850;
      margin-bottom: 24px;
      letter-spacing: 0.01em;
    }

    .hero-text {
      max-width: 660px;
      color: var(--text-2);
      font-size: 18px;
      line-height: 1.9;
      margin-bottom: 14px;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 32px;
    }

    .hero-note {
      margin-top: 24px;
      display: flex;
      align-items: center;
      gap: 14px;
      color: var(--muted);
      font-size: 16px;
    }

    .hero-note b {
      color: var(--primary-dark);
      font-size: 19px;
    }

    .visual-board {
      background: #fff;
      border: 1px solid var(--line);
      border-top: 4px solid var(--primary);
      box-shadow: var(--shadow-2);
      border-radius: 12px;
      padding: 24px;
      position: relative;
    }

    .visual-board::after {
      content: "";
      position: absolute;
      right: 20px;
      top: -4px;
      width: 90px;
      height: 4px;
      background: var(--accent);
    }

    .board-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding-bottom: 18px;
      border-bottom: 1px solid var(--line-2);
    }

    .board-head strong {
      color: var(--primary-deep);
      font-size: 18px;
      font-weight: 850;
    }

    .board-head span {
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
      background: var(--primary-soft);
      padding: 5px 9px;
      border-radius: 999px;
    }

    .board-body {
      padding-top: 20px;
    }

    .abstract-svg {
      width: 100%;
      height: auto;
    }

    .board-points {
      display: grid;
      gap: 10px;
      margin-top: 16px;
    }

    .board-point {
      display: flex;
      align-items: center;
      gap: 12px;
      background: var(--bg);
      border: 1px solid var(--line-2);
      padding: 12px 14px;
      color: var(--text-2);
      font-size: 15px;
      font-weight: 650;
    }

    .board-point span {
      width: 22px;
      height: 22px;
      display: grid;
      place-items: center;
      background: var(--primary);
      color: #fff;
      border-radius: 50%;
      font-size: 12px;
      font-weight: 900;
      flex: none;
    }

    .section {
      padding: 104px 0;
    }

    .section.alt {
      background: var(--bg);
    }

    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 30px;
      margin-bottom: 42px;
    }

    .kicker {
      color: var(--primary);
      font-size: 15px;
      font-weight: 900;
      letter-spacing: 0.08em;
      margin-bottom: 8px;
    }

    .section-title {
      color: var(--primary-deep);
      font-size: clamp(31px, 3.1vw, 42px);
      line-height: 1.25;
      font-weight: 900;
      letter-spacing: -0.025em;
      margin-bottom: 0;
    }

    .section-desc {
      max-width: 520px;
      color: var(--muted);
      font-size: 17px;
      line-height: 1.85;
      margin-bottom: 0;
    }

    .trust-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
    }

    .trust-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 10px;
      padding: 32px 28px;
      box-shadow: 0 8px 26px rgba(0, 55, 120, 0.055);
      position: relative;
      overflow: hidden;
    }

    .trust-card::before {
      content: "";
      position: absolute;
      left: 0;
      top: 0;
      width: 5px;
      height: 100%;
      background: var(--primary);
    }

    .trust-card:nth-child(2)::before {
      background: var(--accent);
    }

    .trust-number {
      color: var(--primary);
      font-size: 48px;
      font-weight: 950;
      line-height: 1;
      letter-spacing: -0.04em;
      margin-bottom: 14px;
    }

    .trust-card:nth-child(2) .trust-number {
      color: var(--accent);
    }

    .trust-title {
      color: var(--text);
      font-size: 20px;
      font-weight: 850;
      margin-bottom: 8px;
    }

    .trust-card p {
      color: var(--muted);
      margin: 0;
      font-size: 16px;
      line-height: 1.7;
    }

    .service-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    .service-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 10px;
      padding: 30px 24px 28px;
      min-height: 236px;
      transition: 0.2s ease;
      position: relative;
    }

    .service-card:hover {
      border-color: rgba(0, 86, 179, 0.36);
      box-shadow: var(--shadow);
      transform: translateY(-3px);
    }

    .service-index {
      color: var(--primary);
      background: var(--primary-soft);
      border: 1px solid rgba(0, 86, 179, 0.12);
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: 8px;
      font-weight: 950;
      margin-bottom: 20px;
    }

    .service-card:nth-child(2) .service-index,
    .service-card:nth-child(4) .service-index {
      color: var(--accent-dark);
      background: var(--accent-soft);
      border-color: rgba(255, 152, 0, 0.20);
    }

    .service-card h3 {
      color: var(--text);
      font-size: 21px;
      line-height: 1.35;
      font-weight: 900;
      margin-bottom: 12px;
    }

    .service-card p {
      color: var(--muted);
      font-size: 16px;
      line-height: 1.75;
      margin: 0;
    }

    .process-lane {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      border: 1px solid var(--line);
      background: #fff;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 10px 26px rgba(0, 55, 120, 0.05);
      position: relative;
    }

    .process-step {
      padding: 34px 26px;
      min-height: 190px;
      border-right: 1px solid var(--line);
      position: relative;
      background: linear-gradient(180deg, #fff 0%, #FAFCFF 100%);
    }

    .process-step:last-child {
      border-right: 0;
    }

    .process-step::before {
      content: "";
      position: absolute;
      left: 26px;
      top: 0;
      width: 58px;
      height: 4px;
      background: var(--primary);
    }

    .process-step:nth-child(4)::before {
      background: var(--accent);
    }

    .step-no {
      color: rgba(0, 86, 179, 0.14);
      font-size: 44px;
      line-height: 1;
      font-weight: 950;
      margin-bottom: 26px;
    }

    .process-step:nth-child(4) .step-no {
      color: rgba(255, 152, 0, 0.24);
    }

    .process-step h3 {
      color: var(--text);
      font-size: 20px;
      font-weight: 900;
      line-height: 1.4;
      margin: 0;
    }

    .why-wrap {
      display: grid;
      grid-template-columns: 0.85fr 1.15fr;
      gap: 28px;
      align-items: stretch;
    }

    .why-lead {
      background: var(--primary-dark);
      color: #fff;
      border-radius: 10px;
      padding: 40px 34px;
      position: relative;
      overflow: hidden;
    }

    .why-lead::after {
      content: "";
      position: absolute;
      right: -70px;
      bottom: -70px;
      width: 210px;
      height: 210px;
      border-radius: 50%;
      border: 36px solid rgba(255, 255, 255, 0.08);
    }

    .why-lead h2 {
      font-size: 34px;
      line-height: 1.25;
      font-weight: 900;
      margin-bottom: 16px;
      position: relative;
      z-index: 1;
    }

    .why-lead p {
      color: rgba(255, 255, 255, 0.82);
      margin: 0;
      font-size: 17px;
      position: relative;
      z-index: 1;
    }

    .why-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .why-item {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 10px;
      padding: 26px;
      box-shadow: 0 8px 24px rgba(0, 55, 120, 0.045);
    }

    .why-item h3 {
      color: var(--text);
      font-size: 20px;
      font-weight: 900;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 9px;
    }

    .why-item h3::before {
      content: "";
      width: 8px;
      height: 8px;
      background: var(--accent);
      border-radius: 50%;
      flex: none;
    }

    .why-item p {
      color: var(--muted);
      font-size: 16px;
      margin: 0;
    }

    .faq-box {
      max-width: 900px;
      margin: 0 auto;
      display: grid;
      gap: 12px;
    }

    .faq-item {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 6px 20px rgba(0, 55, 120, 0.04);
    }

    .faq-q {
      width: 100%;
      border: 0;
      background: #fff;
      color: var(--text);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      padding: 21px 24px;
      text-align: left;
      font-size: 18px;
      font-weight: 850;
    }

    .faq-q:hover {
      background: #FAFCFF;
    }

    .faq-plus {
      width: 27px;
      height: 27px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      background: var(--primary-soft);
      color: var(--primary);
      font-weight: 900;
      flex: none;
      transition: 0.2s ease;
    }

    .faq-a {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.24s ease;
    }

    .faq-a-inner {
      padding: 0 24px 24px;
      color: var(--text-2);
      font-size: 17px;
      line-height: 1.85;
    }

    .faq-item.active .faq-a {
      max-height: 420px;
    }

    .faq-item.active .faq-plus {
      background: var(--accent-soft);
      color: var(--accent-dark);
      transform: rotate(45deg);
    }

    .contact {
      background:
        linear-gradient(90deg, rgba(0, 59, 122, 0.98), rgba(0, 86, 179, 0.94)),
        var(--primary-dark);
      color: #fff;
      position: relative;
      overflow: hidden;
    }

    .contact::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px),
        linear-gradient(0deg, rgba(255,255,255,0.045) 1px, transparent 1px);
      background-size: 86px 86px;
      pointer-events: none;
    }

    .contact-inner {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 0.94fr 1.06fr;
      gap: 46px;
      align-items: center;
    }

    .contact h2 {
      font-size: clamp(32px, 3.3vw, 44px);
      line-height: 1.22;
      font-weight: 900;
      margin-bottom: 18px;
      letter-spacing: -0.02em;
    }

    .contact-desc {
      color: rgba(255, 255, 255, 0.82);
      font-size: 18px;
      line-height: 1.85;
      margin-bottom: 28px;
      max-width: 560px;
    }

    .contact-list {
      display: grid;
      gap: 13px;
    }

    .contact-line {
      display: flex;
      align-items: center;
      gap: 13px;
      color: rgba(255, 255, 255, 0.94);
      font-weight: 750;
      font-size: 17px;
    }

    .contact-line span {
      width: 40px;
      height: 40px;
      display: grid;
      place-items: center;
      border-radius: 6px;
      background: rgba(255,255,255,0.12);
      border: 1px solid rgba(255,255,255,0.18);
      color: #fff;
      font-size: 15px;
    }

    .form-card {
      background: #fff;
      color: var(--text);
      border-radius: 10px;
      border-top: 4px solid var(--accent);
      padding: 32px;
      box-shadow: 0 22px 50px rgba(0, 24, 60, 0.24);
    }

    .form-card h3 {
      color: var(--primary-deep);
      font-size: 24px;
      font-weight: 900;
      margin-bottom: 8px;
    }

    .form-card p {
      color: var(--muted);
      font-size: 16px;
      margin-bottom: 22px;
    }

    .form-grid {
      display: grid;
      gap: 15px;
    }

    .field label {
      display: block;
      color: var(--text);
      font-size: 15px;
      font-weight: 800;
      margin-bottom: 7px;
    }

    .field input {
      width: 100%;
      height: 48px;
      border: 1px solid #C9D6E4;
      border-radius: 4px;
      padding: 0 13px;
      color: var(--text);
      outline: none;
      transition: 0.2s ease;
    }

    .field input:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(0, 86, 179, 0.12);
    }

    .form-card .btn {
      width: 100%;
      margin-top: 6px;
    }

    .site-footer {
      background: #1D2935;
      color: rgba(255,255,255,0.74);
      padding: 52px 0 28px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr;
      gap: 40px;
      padding-bottom: 34px;
      border-bottom: 1px solid rgba(255,255,255,0.12);
    }

    .footer-grid h3,
    .footer-grid h4 {
      color: #fff;
      font-weight: 900;
      margin-bottom: 14px;
    }

    .footer-grid p,
    .footer-grid a {
      display: block;
      color: rgba(255,255,255,0.72);
      font-size: 15px;
      margin: 0 0 8px;
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      padding-top: 22px;
      color: rgba(255,255,255,0.58);
      font-size: 14px;
    }

    .float-call {
      position: fixed;
      right: 22px;
      bottom: 22px;
      z-index: 99;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--accent);
      color: #fff;
      padding: 13px 18px;
      border-radius: 999px;
      box-shadow: 0 16px 34px rgba(255, 152, 0, 0.28);
      font-weight: 850;
    }

    .float-call:hover {
      background: var(--accent-dark);
      transform: translateY(-1px);
    }


    .value-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
    }

    .value-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 10px;
      padding: 30px 26px;
      box-shadow: 0 8px 26px rgba(0, 55, 120, 0.045);
      position: relative;
      overflow: hidden;
      min-height: 250px;
    }

    .value-card::before {
      content: "";
      position: absolute;
      left: 0;
      top: 0;
      height: 4px;
      width: 100%;
      background: linear-gradient(90deg, var(--primary), var(--primary-soft-2));
    }

    .value-card:nth-child(2)::before {
      background: linear-gradient(90deg, var(--accent), #FFE4B8);
    }

    .value-icon {
      width: 48px;
      height: 48px;
      border-radius: 8px;
      display: grid;
      place-items: center;
      background: var(--primary-soft);
      color: var(--primary);
      margin-bottom: 20px;
      font-weight: 950;
      font-size: 18px;
    }

    .value-card:nth-child(2) .value-icon {
      background: var(--accent-soft);
      color: var(--accent-dark);
    }

    .value-card h3 {
      color: var(--text);
      font-size: 21px;
      line-height: 1.35;
      font-weight: 900;
      margin-bottom: 12px;
    }

    .value-card p {
      color: var(--muted);
      margin: 0;
      font-size: 16px;
      line-height: 1.8;
    }

    .pain-layout {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 28px;
      align-items: stretch;
    }

    .pain-lead {
      background: #fff;
      border: 1px solid var(--line);
      border-left: 5px solid var(--accent);
      border-radius: 10px;
      padding: 34px 30px;
      box-shadow: 0 8px 26px rgba(0, 55, 120, 0.05);
    }

    .pain-lead h3 {
      color: var(--primary-deep);
      font-size: 28px;
      line-height: 1.3;
      font-weight: 900;
      margin-bottom: 16px;
    }

    .pain-lead p {
      color: var(--text-2);
      margin-bottom: 0;
      font-size: 17px;
      line-height: 1.85;
    }

    .pain-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
    }

    .pain-item {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 8px;
      padding: 20px 18px;
      display: flex;
      gap: 12px;
      align-items: flex-start;
    }

    .pain-dot {
      width: 24px;
      height: 24px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      flex: none;
      background: var(--primary-soft);
      color: var(--primary);
      font-size: 13px;
      font-weight: 950;
      margin-top: 2px;
    }

    .pain-item:nth-child(2n) .pain-dot {
      background: var(--accent-soft);
      color: var(--accent-dark);
    }

    .pain-item strong {
      display: block;
      color: var(--text);
      font-size: 17px;
      font-weight: 900;
      margin-bottom: 4px;
    }

    .pain-item span {
      display: block;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.65;
    }

    .supplier-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
    }

    .supplier-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 10px;
      padding: 24px 22px;
      transition: 0.2s ease;
    }

    .supplier-card:hover {
      border-color: rgba(0, 86, 179, 0.36);
      box-shadow: var(--shadow);
      transform: translateY(-2px);
    }

    .supplier-card h3 {
      color: var(--text);
      font-size: 19px;
      line-height: 1.35;
      font-weight: 900;
      margin-bottom: 8px;
    }

    .supplier-card p {
      color: var(--muted);
      font-size: 15.5px;
      line-height: 1.75;
      margin: 0;
    }

    .supplier-tag {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 34px;
      height: 26px;
      padding: 0 9px;
      border-radius: 999px;
      background: var(--primary-soft);
      color: var(--primary);
      font-size: 13px;
      font-weight: 900;
      margin-bottom: 14px;
    }

    .supplier-card:nth-child(3n+2) .supplier-tag {
      background: var(--accent-soft);
      color: var(--accent-dark);
    }

    .case-strip {
      margin-top: 42px;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 10px;
      padding: 26px;
      box-shadow: 0 8px 24px rgba(0, 55, 120, 0.045);
    }

    .case-head {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 24px;
      margin-bottom: 18px;
    }

    .case-head h3 {
      color: var(--primary-deep);
      font-size: 22px;
      font-weight: 900;
      margin: 0;
    }

    .case-head p {
      color: var(--muted);
      font-size: 15px;
      margin: 0;
    }

    .case-logos {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 12px;
    }

    .case-logo {
      min-height: 72px;
      border: 1px dashed #B8C8DA;
      background: #FAFCFF;
      border-radius: 8px;
      display: grid;
      place-items: center;
      color: #6A7786;
      font-size: 14px;
      font-weight: 800;
    }

    .cta-band {
      background: linear-gradient(90deg, var(--primary-dark), var(--primary));
      color: #fff;
      border-radius: 12px;
      padding: 34px 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
      position: relative;
      overflow: hidden;
      box-shadow: var(--shadow-2);
    }

    .cta-band::after {
      content: "";
      position: absolute;
      right: -80px;
      bottom: -90px;
      width: 240px;
      height: 240px;
      border-radius: 50%;
      border: 34px solid rgba(255,255,255,0.08);
    }

    .cta-band h2 {
      position: relative;
      z-index: 1;
      margin-bottom: 8px;
      font-size: 28px;
      line-height: 1.3;
      font-weight: 900;
    }

    .cta-band p {
      position: relative;
      z-index: 1;
      margin: 0;
      color: rgba(255,255,255,0.80);
      font-size: 16px;
    }

    .cta-band .btn {
      position: relative;
      z-index: 1;
      flex: none;
    }



    .trust-card p {
      max-width: 320px;
    }

    .service-card {
      min-height: 300px;
    }

    .service-card p {
      font-size: 16.5px;
      line-height: 1.9;
      color: var(--text-2);
    }



    .rule-section {
      background: linear-gradient(180deg, #FFFFFF 0%, #F8F9FA 100%);
    }
    .rule-layout {
      display: grid;
      grid-template-columns: 0.88fr 1.12fr;
      gap: 28px;
      align-items: stretch;
    }
    .rule-lead {
      background: var(--primary-dark);
      color: #fff;
      border-radius: 10px;
      padding: 36px 32px;
      position: relative;
      overflow: hidden;
      box-shadow: var(--shadow);
    }
    .rule-lead::after {
      content: "";
      position: absolute;
      right: -78px;
      bottom: -80px;
      width: 220px;
      height: 220px;
      border-radius: 50%;
      border: 34px solid rgba(255,255,255,0.08);
    }
    .rule-lead h2 {
      position: relative;
      z-index: 1;
      font-size: 32px;
      line-height: 1.28;
      font-weight: 900;
      margin-bottom: 16px;
    }
    .rule-lead p {
      position: relative;
      z-index: 1;
      color: rgba(255,255,255,0.82);
      font-size: 17px;
      line-height: 1.85;
      margin: 0;
    }
    .rule-cards {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .rule-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 10px;
      padding: 24px 22px;
      box-shadow: 0 8px 24px rgba(0, 55, 120, 0.045);
    }
    .rule-card h3 {
      color: var(--text);
      font-size: 20px;
      line-height: 1.35;
      font-weight: 900;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .rule-card h3::before {
      content: "";
      width: 8px;
      height: 8px;
      background: var(--accent);
      border-radius: 50%;
      flex: none;
    }
    .rule-card p {
      color: var(--muted);
      font-size: 16px;
      line-height: 1.8;
      margin: 0;
    }
    .rule-note {
      margin-top: 20px;
      padding: 18px 20px;
      border: 1px solid rgba(255,152,0,0.26);
      background: var(--accent-soft);
      color: #6A4A14;
      border-radius: 8px;
      font-size: 16px;
      line-height: 1.8;
    }


    .wechat-card {
      margin-top: 22px;
      display: flex;
      align-items: center;
      gap: 16px;
      background: rgba(255, 255, 255, 0.10);
      border: 1px solid rgba(255, 255, 255, 0.18);
      border-radius: 10px;
      padding: 16px;
      max-width: 430px;
    }

    .wechat-card img {
      width: 118px;
      height: 118px;
      object-fit: cover;
      border-radius: 8px;
      background: #fff;
      padding: 6px;
      flex: none;
    }

    .wechat-card strong {
      display: block;
      color: #fff;
      font-size: 18px;
      margin-bottom: 6px;
    }

    .wechat-card span {
      display: block;
      color: rgba(255,255,255,0.78);
      font-size: 15px;
      line-height: 1.7;
    }



    .condition-note {
      margin-top: 22px;
      padding: 18px 22px;
      border: 1px solid rgba(0, 86, 179, 0.18);
      border-left: 5px solid var(--accent);
      background: #fff;
      border-radius: 8px;
      color: var(--text-2);
      font-size: 16.5px;
      line-height: 1.8;
      box-shadow: 0 8px 24px rgba(0, 55, 120, 0.045);
    }

    .condition-note strong {
      color: var(--primary-deep);
      font-weight: 900;
    }

    .condition-note a {
      color: var(--primary);
      font-weight: 900;
      white-space: nowrap;
    }

    .phone-highlight {
      font-weight: 900;
      letter-spacing: 0.02em;
    }

    @media (max-width: 1040px) {
      .top-notice {
        display: none;
      }

      .nav-links,
      .nav > .btn {
        display: none;
      }

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

      .mobile-menu.active {
        display: block;
      }

      .hero-inner,
      .why-wrap,
      .pain-layout,
      .rule-layout,
      .contact-inner {
        grid-template-columns: 1fr;
      }

      .hero-inner {
        min-height: auto;
        padding: 66px 0 78px;
      }

      .visual-board {
        max-width: 680px;
        margin: 0 auto;
      }

      .section {
        padding: 82px 0;
      }

      .section-head {
        flex-direction: column;
        align-items: flex-start;
      }

      .trust-grid,
      .service-grid,
      .value-grid,
      .supplier-grid,
      .rule-cards {
        grid-template-columns: repeat(2, 1fr);
      }

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

      .process-step:nth-child(2) {
        border-right: 0;
      }

      .process-step:nth-child(1),
      .process-step:nth-child(2) {
        border-bottom: 1px solid var(--line);
      }

      .case-logos {
        grid-template-columns: repeat(3, 1fr);
      }

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

    @media (max-width: 640px) {
      body {
        font-size: 16px;
      }

      .container {
        width: min(100% - 28px, var(--container));
      }

      .nav {
        height: 68px;
      }

      .brand-sub {
        display: none;
      }

      .brand-name {
        font-size: 19px;
      }

      .hero {
        background: linear-gradient(180deg, #FFFFFF 0%, var(--primary-soft) 100%);
      }

      .hero-inner {
        padding: 46px 0 62px;
        gap: 34px;
      }

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

      .hero-sub {
        font-size: 21px;
      }

      .hero-text {
        font-size: 16px;
      }

      .hero-actions .btn {
        width: 100%;
      }

      .visual-board,
      .form-card {
        padding: 22px 18px;
      }

      .board-head {
        align-items: flex-start;
        flex-direction: column;
      }

      .section {
        padding: 68px 0;
      }

      .section-title {
        font-size: 29px;
      }

      .trust-grid,
      .service-grid,
      .value-grid,
      .supplier-grid,
      .pain-list,
      .rule-cards,
      .process-lane,
      .why-list,
      .case-logos,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .process-step,
      .process-step:nth-child(2) {
        border-right: 0;
        border-bottom: 1px solid var(--line);
      }

      .process-step:last-child {
        border-bottom: 0;
      }

      .why-lead {
        padding: 32px 24px;
      }

      .why-lead h2 {
        font-size: 29px;
      }

      .faq-q {
        font-size: 17px;
        padding: 18px;
      }

      .faq-a-inner {
        padding: 0 18px 20px;
        font-size: 16px;
      }

      .contact-desc {
        font-size: 16px;
      }


      .wechat-card {
        align-items: flex-start;
      }

      .wechat-card img {
        width: 104px;
        height: 104px;
      }


      .case-head,
      .cta-band,
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }

      .cta-band .btn {
        width: 100%;
      }

      .float-call {
        right: 14px;
        bottom: 14px;
        padding: 12px 15px;
        font-size: 15px;
      }
    }


/* 提交成功弹窗 */
.success-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.success-modal.active {
  display: flex;
}

.success-modal__mask {
  position: absolute;
  inset: 0;
  background: rgba(10, 24, 40, 0.55);
}

.success-modal__box {
  position: relative;
  width: min(420px, 100%);
  background: #fff;
  border-radius: 10px;
  padding: 34px 28px 28px;
  box-shadow: 0 24px 70px rgba(0, 40, 90, 0.25);
  text-align: center;
  animation: modalIn 0.18s ease-out;
}

.success-modal__close {
  position: absolute;
  top: 12px;
  right: 14px;
  border: 0;
  background: transparent;
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
  color: #6A7786;
}

.success-modal__icon {
  width: 58px;
  height: 58px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: #F0F7FF;
  color: #0056B3;
  display: grid;
  place-items: center;
  font-size: 32px;
  font-weight: 900;
}

.success-modal__box h3 {
  margin: 0 0 10px;
  color: #062F63;
  font-size: 24px;
  font-weight: 900;
}

.success-modal__box p {
  margin: 0 0 24px;
  color: #4B5B6B;
  font-size: 16px;
  line-height: 1.7;
}

.success-modal__actions {
  display: grid;
  gap: 12px;
}

.success-modal__call {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border-radius: 4px;
  background: #FF9800;
  color: #fff;
  font-weight: 800;
}

.success-modal__call:hover {
  background: #E18400;
}

.success-modal__cancel {
  min-height: 44px;
  border-radius: 4px;
  border: 1px solid #DDE7F2;
  background: #fff;
  color: #4B5B6B;
  cursor: pointer;
  font-weight: 700;
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}


/* ===== V4 细节优化：更紧凑的模块、FAQ 背景、统一 Footer ===== */
@media (min-width: 1041px) {
  .section {
    padding: 88px 0;
  }
}

.value-grid,
.value-card {
  overflow: visible;
}

#faq.section {
  background: #F8FAFD;
  border-top: 1px solid #E8EEF5;
  border-bottom: 1px solid #E8EEF5;
}

#faq .faq-box {
  max-width: 930px;
  background: #fff;
  border: 1px solid #E1EAF4;
  border-radius: 12px;
  padding: 14px;
  box-shadow: 0 12px 32px rgba(0, 55, 120, 0.055);
}

#faq .faq-item {
  box-shadow: none;
}

#faq .faq-item + .faq-item {
  margin-top: 10px;
}

.board-point {
  font-size: 15.5px;
  line-height: 1.65;
}

/* Footer Pro */
.site-footer-pro {
  background:
    radial-gradient(circle at 12% 10%, rgba(0, 86, 179, 0.18), transparent 32%),
    linear-gradient(180deg, #172330 0%, #111B27 100%);
  color: rgba(255,255,255,0.78);
  padding: 64px 0 30px;
}

.footer-pro-grid {
  display: grid;
  grid-template-columns: 1.05fr 1.05fr 1.2fr 0.95fr;
  gap: 20px;
  align-items: stretch;
}

.footer-pro-card {
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.045);
  border-radius: 12px;
  padding: 24px 22px;
  min-height: 260px;
}

.footer-brand-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.footer-brand-row img {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  object-fit: contain;
  background: #fff;
}

.footer-brand-row strong {
  display: block;
  color: #fff;
  font-size: 21px;
  font-weight: 900;
  line-height: 1.2;
}

.footer-brand-row span {
  display: block;
  color: rgba(255,255,255,0.60);
  font-size: 13px;
  margin-top: 4px;
}

.footer-pro-card h3,
.footer-pro-card h4 {
  color: #fff;
  margin: 0 0 18px;
  font-size: 18px;
  font-weight: 900;
  position: relative;
  padding-left: 14px;
}

.footer-pro-card h3::before,
.footer-pro-card h4::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 4px;
  height: 16px;
  border-radius: 2px;
  background: #FF9800;
}

.footer-pro-card p {
  color: rgba(255,255,255,0.70);
  font-size: 15px;
  line-height: 1.85;
  margin: 0;
}

.footer-platform-links {
  display: grid;
  gap: 9px;
}

.footer-platform-links a {
  color: rgba(255,255,255,0.70);
  font-size: 14.5px;
  line-height: 1.45;
  transition: color .18s ease, transform .18s ease;
}

.footer-platform-links a:hover {
  color: #fff;
  transform: translateX(3px);
}

.footer-service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.footer-service-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 4px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.75);
  font-size: 13px;
  white-space: nowrap;
}

.footer-contact-card-dark {
  background: rgba(255,255,255,0.07);
  border-color: rgba(255,255,255,0.14);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.footer-phone-number {
  display: block;
  color: #FFB13B;
  font-size: 24px;
  line-height: 1.2;
  font-weight: 950;
  margin: 16px 0 12px;
}

.footer-call-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 4px;
  background: #FF9800;
  color: #fff;
  font-weight: 900;
  margin-top: 12px;
  box-shadow: 0 10px 22px rgba(255, 152, 0, .16);
}

.footer-call-btn:hover {
  background: #E18400;
}

.footer-record {
  display: grid;
  gap: 6px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.10);
  color: rgba(255,255,255,0.56);
  font-size: 13px;
}

.footer-pro-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid rgba(255,255,255,0.10);
  color: rgba(255,255,255,0.56);
  font-size: 14px;
}

@media (max-width: 1100px) {
  .footer-pro-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .site-footer-pro {
    padding: 46px 0 24px;
  }

  .footer-pro-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .footer-pro-card {
    min-height: auto;
  }

  .footer-phone-number {
    font-size: 22px;
  }

  .footer-pro-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

.brand-logo {
  width: 42px;
  height: 42px;
  object-fit: contain;
  display: block;
  flex: none;
  border-radius: 8px;
}


/* 返回顶部按钮 */
.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 86px;
  z-index: 98;
  width: 52px;
  height: 52px;
  border: 0;
  border-radius: 999px;
  background: #0056B3;
  color: #fff;
  box-shadow: 0 14px 30px rgba(0, 86, 179, 0.24);
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 1px;
  transition: transform 0.18s ease, opacity 0.18s ease, background 0.18s ease;
}

.back-to-top.show {
  display: flex;
}

.back-to-top:hover {
  background: #003B7A;
  transform: translateY(-2px);
}

.back-to-top span {
  font-size: 21px;
  line-height: 1;
  font-weight: 900;
}

.back-to-top em {
  font-style: normal;
  font-size: 11px;
  line-height: 1;
  font-weight: 800;
}

@media (max-width: 640px) {
  .back-to-top {
    right: 14px;
    bottom: 76px;
    width: 46px;
    height: 46px;
  }

  .back-to-top span {
    font-size: 19px;
  }

  .back-to-top em {
    font-size: 10px;
  }
}