:root {
      --bg: #f5f7fb;
      --surface: #ffffff;
      --line: #dde5f0;
      --line-soft: #ebf0f6;
      --text: #182436;
      --text-soft: #637089;
      --primary: #2f6df6;
      --primary-deep: #183b7a;
      --container: 1180px;
      --shadow: 0 18px 34px rgba(15, 23, 42, 0.07);
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: Inter, "PingFang SC", "Microsoft YaHei", sans-serif;
      background: linear-gradient(180deg, #f5f7fb 0%, #eff3f8 100%);
      color: var(--text);
    }

    a { color: inherit; text-decoration: none; }
    .container { width: min(var(--container), calc(100% - 28px)); margin: 0 auto; }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 60;
      background: rgba(245, 247, 251, 0.94);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--line-soft);
    }

    .site-header__inner {
      min-height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 0;
    }

    .brand__image {
      display: block;
      width: auto;
      height: 34px;
      max-width: 220px;
      object-fit: contain;
      mix-blend-mode: darken;
      opacity: 0.96;
      filter: saturate(0.86) contrast(0.94) brightness(1.01);
    }

    .nav {
      display: flex;
      align-items: center;
      gap: 24px;
      color: var(--text-soft);
      font-size: 14px;
      font-weight: 600;
    }

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

    .button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 46px;
      padding: 0 18px;
      border-radius: 14px;
      border: 1px solid transparent;
      font-size: 14px;
      font-weight: 800;
      transition: .2s ease;
      cursor: pointer;
      white-space: nowrap;
    }

    .button--primary {
      background: linear-gradient(180deg, #245ecb 0%, #173f8e 58%, #122f66 100%);
      color: #fff;
      border-color: #12346e;
      box-shadow: 0 14px 24px rgba(18, 47, 102, 0.24);
    }

    .hero {
      padding: 48px 0 24px;
    }

    .hero__inner {
      width: min(100%, 1120px);
      margin: 0 auto;
      display: grid;
      grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
      gap: 22px;
      align-items: stretch;
    }

    .hero__content {
      border: 1px solid #dbe4ef;
      border-radius: 28px;
      background: linear-gradient(180deg, #ffffff 0%, #f9fbff 100%);
      box-shadow: 0 20px 38px rgba(15, 23, 42, 0.08);
      padding: 32px;
      display: grid;
      align-content: start;
      gap: 16px;
      position: relative;
      overflow: hidden;
    }

    .hero__content::after {
      content: "";
      position: absolute;
      right: -56px;
      top: -56px;
      width: 160px;
      height: 160px;
      border-radius: 50%;
      background: radial-gradient(circle at center, rgba(47,109,246,0.14) 0%, rgba(47,109,246,0) 72%);
      pointer-events: none;
    }

    .hero__copy {
      position: relative;
      z-index: 1;
      display: grid;
      gap: 16px;
      align-content: start;
    }

    .hero__desc {
      max-width: 720px;
      margin: 0;
      color: #66768f;
      font-size: 16px;
      line-height: 1.92;
    }

    .hero__lead {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      position: relative;
      z-index: 1;
    }

    .hero__lead-item {
      min-height: 88px;
      border: 1px solid #dbe6f4;
      border-radius: 18px;
      background: rgba(255,255,255,0.82);
      padding: 16px;
      display: grid;
      gap: 8px;
      align-content: start;
      box-shadow: 0 10px 20px rgba(20, 35, 70, 0.05);
    }

    .hero__lead-label {
      color: #4e6690;
      font-size: 12px;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 0.06em;
    }

    .hero__lead-text {
      color: #1d2d4b;
      font-size: 15px;
      font-weight: 700;
      line-height: 1.65;
    }

    .hero__visual {
      border: 1px solid #dbe4ef;
      border-radius: 28px;
      background: linear-gradient(135deg, #edf4ff 0%, #f7fbff 50%, #ffffff 100%);
      box-shadow: 0 20px 38px rgba(15, 23, 42, 0.08);
      padding: 24px;
      display: grid;
      gap: 14px;
      align-content: start;
      position: relative;
      overflow: hidden;
    }

    .hero__visual::before {
      content: "";
      position: absolute;
      right: -34px;
      bottom: -34px;
      width: 140px;
      height: 140px;
      border-radius: 50%;
      background: radial-gradient(circle at center, rgba(24,59,122,0.16) 0%, rgba(24,59,122,0) 72%);
    }

    .hero__visual-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      position: relative;
      z-index: 1;
    }

    .hero__visual-badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 64px;
      height: 64px;
      border-radius: 20px;
      background: linear-gradient(180deg, #245ecb 0%, #173f8e 100%);
      color: #ffffff;
      box-shadow: 0 16px 28px rgba(18, 47, 102, 0.24);
    }

    .hero__visual-badge svg {
      width: 30px;
      height: 30px;
      stroke: currentColor;
      fill: none;
      stroke-width: 1.9;
      stroke-linecap: round;
      stroke-linejoin: round;
    }

    .hero__visual-tag {
      min-height: 34px;
      display: inline-flex;
      align-items: center;
      padding: 0 14px;
      border-radius: 999px;
      background: rgba(255,255,255,0.9);
      border: 1px solid #dbe6f4;
      color: #4e6690;
      font-size: 12px;
      font-weight: 800;
      letter-spacing: 0.04em;
      text-transform: uppercase;
    }

    .hero__visual-card {
      border: 1px solid #dbe4ef;
      border-radius: 22px;
      background: rgba(255,255,255,0.88);
      padding: 18px;
      display: grid;
      gap: 12px;
      position: relative;
      z-index: 1;
      box-shadow: 0 14px 24px rgba(20, 35, 70, 0.06);
    }

    .hero__visual-card h2 {
      margin: 0;
      font-size: 24px;
      line-height: 1.2;
      letter-spacing: -0.03em;
      color: #1f3150;
    }

    .hero__visual-card p {
      margin: 0;
      color: #62728b;
      font-size: 14px;
      line-height: 1.9;
    }

    .hero__eyebrow {
      display: inline-flex;
      align-items: center;
      min-height: 34px;
      padding: 0 14px;
      border-radius: 999px;
      background: #eaf1ff;
      color: var(--primary);
      font-size: 13px;
      font-weight: 800;
    }

    .hero h1 {
      margin: 0;
      font-size: clamp(40px, 5vw, 60px);
      line-height: 1.02;
      letter-spacing: -0.055em;
      color: #182844;
    }

    .hero__meta {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
    }

    .hero__meta span {
      min-height: 34px;
      display: inline-flex;
      align-items: center;
      padding: 0 14px;
      border-radius: 999px;
      background: #ffffff;
      border: 1px solid #dbe6f4;
      color: #49607f;
      font-size: 13px;
      font-weight: 700;
      box-shadow: 0 8px 18px rgba(20, 35, 70, 0.05);
    }

    .about-layout {
      width: min(100%, 1120px);
      margin: 0 auto;
      display: grid;
      gap: 24px;
      padding-bottom: 46px;
    }

    .about-story {
      display: grid;
      grid-template-columns: 1.05fr 0.95fr;
      gap: 18px;
      align-items: start;
    }

    .about-story__main,
    .about-story__side {
      display: grid;
      gap: 14px;
      align-content: start;
    }

    .about-side-intro {
      border: 1px solid #dbe4ef;
      border-radius: 22px;
      background: linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
      padding: 20px 22px;
      box-shadow: 0 14px 28px rgba(20, 35, 70, 0.08);
      display: grid;
      gap: 10px;
    }

    .about-side-intro__head {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .about-side-intro__head h3 {
      margin: 0;
      font-size: 18px;
      line-height: 1.3;
      letter-spacing: -0.02em;
      color: #203252;
    }

    .about-side-intro p {
      margin: 0;
      color: #62728b;
      font-size: 14px;
      line-height: 1.9;
    }

    .about-split {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
      align-items: start;
    }

    .panel {
      border: 1px solid #dbe4ef;
      border-radius: 22px;
      background: linear-gradient(180deg, rgba(255,255,255,0.96) 0%, rgba(249,252,255,0.94) 100%);
      box-shadow: var(--shadow);
      overflow: hidden;
      min-width: 0;
      height: 100%;
    }

    .panel__head {
      padding: 24px 26px 18px;
      border-bottom: 1px solid var(--line-soft);
      background: linear-gradient(180deg, #ffffff 0%, #f9fbff 100%);
      display: grid;
      gap: 10px;
    }

    .panel__eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: #4b67a1;
      font-size: 12px;
      font-weight: 800;
      letter-spacing: 0.06em;
      text-transform: uppercase;
    }

    .panel__icon {
      width: 28px;
      height: 28px;
      border-radius: 999px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: #1c4fa3;
      color: #ffffff;
      flex: 0 0 auto;
    }

    .panel__icon svg {
      width: 14px;
      height: 14px;
      stroke: currentColor;
      fill: none;
      stroke-width: 2;
      stroke-linecap: round;
      stroke-linejoin: round;
    }

    .panel__head h2 {
      margin: 0;
      font-size: 28px;
      line-height: 1.16;
      letter-spacing: -0.04em;
      color: #1d2d4b;
    }

    .panel__head p {
      margin: 0;
      color: #66768f;
      font-size: 15px;
      line-height: 1.92;
      max-width: 760px;
    }

    .panel__body {
      padding: 22px 26px 26px;
      display: grid;
      gap: 14px;
      align-content: start;
    }

    .doc-note {
      border: 1px solid #dbe4ef;
      border-radius: 22px;
      background: linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
      padding: 24px;
      display: grid;
      gap: 16px;
      box-shadow: 0 14px 28px rgba(20, 35, 70, 0.08);
      position: relative;
      overflow: hidden;
    }

    .story-card {
      border: 1px solid #dbe4ef;
      border-radius: 22px;
      background: linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
      padding: 22px;
      display: grid;
      gap: 14px;
      box-shadow: 0 14px 28px rgba(20, 35, 70, 0.08);
    }

    .story-card h2,
    .story-card h3 {
      margin: 0;
      color: #1e2f4d;
      letter-spacing: -0.03em;
    }

    .story-card h2 {
      font-size: 30px;
      line-height: 1.14;
    }

    .story-card h3 {
      font-size: 18px;
      line-height: 1.3;
    }

    .story-card p,
    .story-card li {
      margin: 0;
      color: #62728b;
      font-size: 14px;
      line-height: 1.92;
    }

    .story-card ul {
      margin: 0;
      padding-left: 18px;
      display: grid;
      gap: 8px;
    }

    .doc-note::after {
      content: "";
      position: absolute;
      right: -34px;
      bottom: -34px;
      width: 110px;
      height: 110px;
      border-radius: 50%;
      background: radial-gradient(circle at center, rgba(24,59,122,0.10) 0%, rgba(24,59,122,0) 72%);
      pointer-events: none;
    }

    .doc-note h3 {
      margin: 0;
      font-size: 24px;
      color: #203252;
      letter-spacing: -0.03em;
      line-height: 1.22;
    }

    .doc-note p,
    .doc-note li {
      margin: 0;
      color: #62728b;
      font-size: 14px;
      line-height: 1.92;
    }

    .doc-note ul {
      margin: 0;
      padding-left: 18px;
      display: grid;
      gap: 8px;
    }

    .contact-list,
    .statement-list,
    .user-list,
    .advantage-list {
      display: grid;
      gap: 12px;
    }

    .info-card {
      border: 1px solid #dbe4ef;
      border-radius: 18px;
      background: linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
      box-shadow: 0 12px 24px rgba(20, 35, 70, 0.06);
      padding: 18px;
      display: grid;
      gap: 10px;
      position: relative;
      overflow: hidden;
    }

    .info-card::after {
      content: "";
      position: absolute;
      right: -24px;
      bottom: -24px;
      width: 78px;
      height: 78px;
      border-radius: 50%;
      background: radial-gradient(circle at center, rgba(24,59,122,0.08) 0%, rgba(24,59,122,0) 72%);
      pointer-events: none;
    }

    .info-card__head {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .mini-icon {
      width: 40px;
      height: 40px;
      border-radius: 999px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--mini-icon-color, #1c4fa3);
      color: #ffffff;
      flex: 0 0 auto;
      box-shadow: 0 10px 20px rgba(20, 35, 70, 0.12);
    }

    .mini-icon svg {
      width: 18px;
      height: 18px;
      stroke: currentColor;
      fill: none;
      stroke-width: 2;
      stroke-linecap: round;
      stroke-linejoin: round;
    }

    .mini-icon--blue { --mini-icon-color: #1c4fa3; }
    .mini-icon--green { --mini-icon-color: #1f9a67; }
    .mini-icon--red { --mini-icon-color: #cf3d4f; }

    .info-card h3 {
      margin: 0;
      font-size: 18px;
      color: #203252;
      letter-spacing: -0.02em;
    }

    .info-card p,
    .info-card li {
      margin: 0;
      color: #62728b;
      font-size: 14px;
      line-height: 1.9;
    }

    .info-card ul {
      margin: 0;
      padding-left: 18px;
      display: grid;
      gap: 8px;
    }

    .site-footer {
      padding: 24px 0 36px;
    }

    .site-footer__inner {
      border-top: 1px solid var(--line);
      padding-top: 28px;
      display: grid;
      grid-template-columns: 1.5fr repeat(4, minmax(0, 1fr));
      gap: 24px;
    }

    .site-footer__brand {
      display: grid;
      gap: 14px;
      max-width: 360px;
    }

    .site-footer__brand-head {
      display: inline-flex;
      align-items: center;
      gap: 12px;
    }

    .site-footer__brand-image {
      display: block;
      width: auto;
      height: 32px;
      max-width: 180px;
      object-fit: contain;
      mix-blend-mode: darken;
      opacity: 0.96;
      filter: saturate(0.86) contrast(0.94) brightness(1.01);
    }

    .site-footer__brand-text {
      margin: 0;
      color: var(--text-soft);
      font-size: 14px;
      line-height: 1.9;
    }

    .site-footer__column-title {
      margin: 0 0 14px;
      font-size: 16px;
      color: var(--text);
      letter-spacing: -0.02em;
    }

    .site-footer__links {
      list-style: none;
      margin: 0;
      padding: 0;
      display: grid;
      gap: 10px;
    }

    .site-footer__links a,
    .site-footer__text {
      color: var(--text-soft);
      font-size: 14px;
      line-height: 1.8;
    }

    .site-footer__bottom {
      margin-top: 24px;
      padding-top: 16px;
      border-top: 1px solid #e5ebf3;
      color: #7a879d;
      font-size: 13px;
      line-height: 1.8;
    }

    @media (max-width: 1024px) {
      .hero__inner,
      .hero__lead,
      .about-story,
      .about-split,
      .site-footer__inner {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 720px) {
      .site-header__inner {
        min-height: auto;
        padding: 14px 0;
        flex-direction: column;
        align-items: flex-start;
      }

      .nav {
        flex-wrap: wrap;
        gap: 12px 16px;
      }

      .hero__inner {
        padding: 0 18px;
      }

      .container { width: min(var(--container), calc(100% - 20px)); }
    }


.site-footer__social {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-top: 4px;
}

.social-link {
  width: 44px;
  height: 44px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  border: 1px solid #dbe4ef;
  box-shadow: 0 10px 18px rgba(20, 35, 70, 0.06);
  transition: .2s ease;
}

.social-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 22px rgba(20, 35, 70, 0.10);
}

.social-link svg {
  width: 22px;
  height: 22px;
  display: block;
}

.social-link--facebook svg {
  fill: #1877f2;
}

.social-link--x svg {
  fill: #111111;
}

.social-link--youtube svg {
  fill: #ff0000;
}