:root {
      --bg: #f5f7ff;
      --surface: #ffffff;
      --text: #122033;
      --muted: #5c6b82;
      --primary: #3b45fd;
      --primary-2: #6a73ff;
      --line: #e3e8f5;
      --shadow: 0 18px 50px rgba(30, 48, 89, 0.12);
      --radius: 28px;
    }
* { box-sizing: border-box; }
    .sr-only {
      position: absolute;
      width: 1px;
      height: 1px;
      padding: 0;
      margin: -1px;
      overflow: hidden;
      clip: rect(0, 0, 0, 0);
      white-space: nowrap;
      border: 0;
    }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
      color: var(--text);
      background: linear-gradient(180deg, #eff3ff 0%, #f9fbff 420px, #ffffff 100%);
    }
    a { color: inherit; text-decoration: none; }
    img { max-width: 100%; display: block; }
    .container { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
    .navbar {
      position: sticky;
      top: 0;
      z-index: 50;
      background: transparent;
      border-bottom: 0;
      transition: background .25s ease;
    }
    .nav {
      min-height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }
    .navbar.is-scrolled {
      background: transparent;
    }
    .navbar.is-scrolled .nav {
      background: rgba(255, 255, 255, 0.78);
      border: 1px solid rgba(227, 232, 245, 0.95);
      border-radius: 999px;
      box-shadow: 0 16px 40px rgba(30, 48, 89, 0.12);
      backdrop-filter: blur(16px);
      padding: 0 20px;
      margin-top: 10px;
    }
    .brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 800; letter-spacing: 0.02em; }
    .brand-logo { width: 170px; height: auto; display: block; }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 18px;
      font-size: 15px;
      color: var(--muted);
      flex-wrap: wrap;
      justify-content: flex-end;
      margin-left: auto;
    }
    .nav-links a {
      position: relative;
      transition: color .2s ease, opacity .2s ease;
    }
    .nav-links a:hover { color: var(--primary); }
    .nav-links a::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: -6px;
      width: 100%;
      height: 2px;
      background: var(--primary);
      transform: scaleX(0);
      transform-origin: left center;
      transition: transform .2s ease;
      border-radius: 999px;
    }
    .nav-links a:hover::after { transform: scaleX(1); }
    .nav-utility {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-left: 8px;
    }
    .lang-switch {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 12px;
      padding: 0;
      border: 0;
      background: transparent;
      box-shadow: none;
      color: #1f2937;
      font-weight: 700;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .lang-switch:hover {
      transform: translateY(-1px);
      background: transparent;
    }
    .lang-switch svg {
      width: 18px;
      height: 18px;
      display: block;
      flex: 0 0 18px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      padding: 0 22px;
      border-radius: 999px;
      font-weight: 700;
      border: 1px solid transparent;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
      white-space: nowrap;
    }
    .btn:hover { transform: translateY(-2px); }
    .btn:active { transform: translateY(0) scale(0.99); }
    .btn:focus-visible {
      outline: 3px solid rgba(59, 69, 253, 0.22);
      outline-offset: 3px;
    }
    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--primary-2));
      box-shadow: 0 16px 30px rgba(59, 69, 253, 0.24);
    }
    .btn-primary:hover {
      box-shadow: 0 20px 40px rgba(59, 69, 253, 0.30);
      background: linear-gradient(135deg, #4b55ff, #7d85ff);
    }
    .btn-secondary {
      color: var(--primary);
      background: #eef1ff;
      border-color: #dde2ff;
    }
    .btn-secondary:hover { background: linear-gradient(135deg, #eef2ff, #e3e9ff); }
    .hero {
      padding: 56px 0 28px;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 48px;
      align-items: center;
      min-height: 680px;
    }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: var(--primary);
      font-size: 13px;
      font-weight: 800;
      letter-spacing: .16em;
      text-transform: uppercase;
      margin-bottom: 18px;
    }
    .eyebrow::before {
      content: "";
      width: 44px;
      height: 2px;
      background: var(--primary);
      border-radius: 999px;
    }
    h1 {
      font-size: clamp(46px, 7vw, 88px);
      line-height: .96;
      margin: 0 0 22px;
      letter-spacing: -0.05em;
    }
    .hero p {
      font-size: 18px;
      line-height: 1.8;
      color: var(--muted);
      max-width: 560px;
      margin: 0 0 28px;
    }
    .hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
    .device-stage {
      position: relative;
      min-height: 620px;
      display: grid;
      place-items: center;
    }
    .orb {
      position: absolute;
      border-radius: 50%;
      filter: blur(12px);
      opacity: .75;
    }
    .orb.one {
      width: 300px; height: 300px;
      background: rgba(59, 69, 253, 0.14);
      top: 8%; left: 8%;
    }
    .orb.two {
      width: 220px; height: 220px;
      background: rgba(101, 173, 255, 0.18);
      bottom: 5%; right: 8%;
    }
    .device-img {
      width: min(100%, 250px);
      height: auto;
      filter: drop-shadow(0 18px 35px rgba(27, 40, 70, 0.16));
      position: absolute;
    }
    .device-img.left {
      transform: translateX(-148px) rotate(-10deg);
      z-index: 1;
    }
    .device-img.right {
      transform: translateX(76px) rotate(9deg);
      z-index: 2;
    }
    .section {
      padding: 24px 0 88px;
    }
    .section-title {
      text-align: center;
      margin-bottom: 34px;
    }
    .section-title h2 {
      margin: 0 0 12px;
      font-size: clamp(32px, 4vw, 52px);
      letter-spacing: -0.04em;
    }
    .section-title p {
      margin: 0 auto;
      max-width: 680px;
      color: var(--muted);
      line-height: 1.8;
    }
    .section-title--tight {
      margin-bottom: 54px;
    }
    .reference-block {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 56px;
      align-items: center;
      margin-bottom: 36px;
    }
    .reference-copy h3 {
      margin: 0 0 22px;
      font-size: clamp(30px, 3vw, 46px);
      letter-spacing: -0.04em;
    }
    .reference-copy p {
      margin: 0;
      max-width: 360px;
      font-size: 17px;
      line-height: 1.9;
      color: #2f3640;
    }
    .reference-video-shell {
      position: relative;
      min-height: 560px;
      padding: 22px;
      border-radius: 28px;
      overflow: hidden;
      background: #a8c9d7;
      box-shadow: 0 24px 52px rgba(35, 73, 96, 0.12);
    }
    .reference-video-shell video {
      width: 100%;
      height: 100%;
      display: block;
      object-fit: cover;
      background: #a8c9d7;
      border-radius: 20px;
    }
    .info-grid {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 28px;
      align-items: center;
      margin-bottom: 28px;
    }
    .info-visual, .info-copy, .feature-card, .ad-card, .download-card, .footer-panel {
      background: rgba(255,255,255,0.9);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: 0 14px 35px rgba(41, 62, 106, 0.06);
    }
    .info-visual {
      min-height: 360px;
      display: grid;
      place-items: center;
      padding: 24px;
      overflow: hidden;
      position: relative;
    }
    .encryption-ring {
      width: min(100%, 420px);
      aspect-ratio: 1;
      border-radius: 50%;
      background:
        radial-gradient(circle at center, rgba(59,69,253,0.18) 0 22%, transparent 22% 100%),
        conic-gradient(from 90deg, rgba(59,69,253,0.95), rgba(123,132,255,0.75), rgba(59,69,253,0.95));
      mask: radial-gradient(circle, transparent 0 34%, #000 34% 100%);
      opacity: .9;
      filter: drop-shadow(0 18px 30px rgba(59,69,253,.22));
    }
    .info-copy {
      padding: 38px;
    }
    .info-copy h3 { margin: 0 0 14px; font-size: 34px; letter-spacing: -0.03em; }
    .info-copy p { margin: 0; color: var(--muted); line-height: 1.9; }
    .feature-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 18px;
      margin: 28px 0;
    }
    .feature-card {
      padding: 24px 22px 22px;
      min-height: 220px;
      text-align: center;
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .feature-card:hover { transform: translateY(-4px); box-shadow: 0 20px 42px rgba(41, 62, 106, 0.10); }
    .feature-card h3 { margin: 0 0 10px; font-size: 24px; }
    .feature-card p { margin: 0; color: var(--muted); line-height: 1.8; }
    .feature-art {
      width: min(100%, 360px);
      height: auto;
      margin: 0 auto 16px;
      display: block;
      border-radius: 20px;
    }
    .ad-card { overflow: hidden; }
    .ad-card .info-grid { margin: 0; }
    .ad-block {
      display: grid;
      grid-template-columns: 0.8fr 1.2fr;
      gap: 36px;
      align-items: center;
      margin: 0 0 42px;
    }
    .ad-block--reverse {
      grid-template-columns: 1.2fr 0.8fr;
    }
    .ad-text h2 {
      margin: 0 0 18px;
      font-size: clamp(30px, 3vw, 46px);
      letter-spacing: -0.04em;
      line-height: 1.05;
    }
    .ad-text p {
      margin: 0;
      max-width: 360px;
      color: #333840;
      line-height: 1.9;
      font-size: 17px;
    }
    .ad-image {
      width: 100%;
      border-radius: 20px;
      display: block;
      box-shadow: 0 14px 35px rgba(41, 62, 106, 0.06);
    }
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
      margin: 26px 0 44px;
    }
    .testimonial-card {
      padding: 24px;
      border-radius: 24px;
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: 0 14px 35px rgba(41, 62, 106, 0.06);
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .testimonial-card:hover { transform: translateY(-4px); box-shadow: 0 20px 42px rgba(41, 62, 106, 0.10); }
    .testimonial-head {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }
    .testimonial-avatar {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      object-fit: cover;
      flex: 0 0 48px;
      background: #eef2ff;
    }
    .testimonial-name {
      font-weight: 800;
      margin: 0;
      font-size: 16px;
    }
    .testimonial-role {
      margin: 2px 0 0;
      color: var(--muted);
      font-size: 13px;
    }
    .testimonial-card p {
      margin: 0;
      color: #313847;
      line-height: 1.85;
      font-size: 15px;
    }
    .faq-section {
      margin: 10px 0 30px;
    }
    .faq-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 22px;
    }
    .faq-group {
      padding: 24px;
      border: 1px solid var(--line);
      border-radius: 24px;
      background: #fff;
      box-shadow: 0 14px 35px rgba(41, 62, 106, 0.06);
    }
    .faq-group h2 {
      margin: 0 0 16px;
      font-size: clamp(24px, 2.8vw, 34px);
      letter-spacing: -0.04em;
      text-align: left;
    }
    .faq-group .faq-list {
      max-width: none;
      border-radius: 18px;
    }
    .faq-section h2 {
      margin: 0 0 18px;
      font-size: clamp(28px, 3.2vw, 44px);
      letter-spacing: -0.04em;
      text-align: center;
    }
    .faq-list {
      max-width: 980px;
      margin: 0 auto;
      border: 1px solid var(--line);
      border-radius: 24px;
      overflow: hidden;
      background: #fff;
      box-shadow: 0 14px 35px rgba(41, 62, 106, 0.06);
    }
    .faq-item + .faq-item { border-top: 1px solid var(--line); }
    .faq-item summary {
      list-style: none;
      cursor: pointer;
      padding: 22px 24px;
      font-size: 17px;
      font-weight: 700;
      color: #1f2937;
      transition: background .2s ease, color .2s ease;
    }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after {
      content: "+";
      float: right;
      color: var(--primary);
      font-weight: 800;
      transition: transform .2s ease;
    }
    .faq-item[open] summary::after { content: "−"; }
    .faq-item summary:hover { background: #f7f9ff; color: var(--primary); }
    .faq-item .faq-answer {
      padding: 0 24px 22px;
      color: var(--muted);
      line-height: 1.85;
      font-size: 15px;
      max-width: 880px;
    }
    .subsection-title {
      margin: 8px 0 22px;
      text-align: center;
    }
    .subsection-title h2 {
      margin: 0 0 10px;
      font-size: clamp(28px, 3.2vw, 44px);
      letter-spacing: -0.04em;
    }
    .subsection-title p {
      margin: 0 auto;
      color: var(--muted);
      line-height: 1.8;
      max-width: 720px;
    }
    .ad-visual {
      min-height: 320px;
      padding: 30px;
      display: grid;
      place-items: center;
      background: linear-gradient(135deg, #fafbff, #eef3ff);
    }
    .ad-copy { padding: 34px; }
    .ad-copy h3 { margin: 0 0 12px; font-size: 32px; }
    .ad-copy p { margin: 0; color: var(--muted); line-height: 1.9; }
    .download-card {
      padding: 34px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      margin-top: 28px;
    }
    .download-card h2 { margin: 0 0 8px; font-size: 30px; }
    .download-card p { margin: 0; color: var(--muted); }
    footer {
      padding: 30px 0 54px;
    }
    .footer-panel {
      padding: 28px;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 1.3fr repeat(3, minmax(0, 1fr));
      gap: 22px;
    }
    .footer-top h4 { margin: 0 0 12px; font-size: 15px; }
    .footer-top p, .footer-links { color: var(--muted); line-height: 1.8; margin: 0; }
    .footer-links { display: grid; gap: 8px; }
    .social-links {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-top: 16px;
      flex-wrap: wrap;
    }
    .social-links a {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: #f1f4fb;
      border: 1px solid var(--line);
      color: #39445d;
      transition: transform .2s ease, background .2s ease, color .2s ease;
    }
    .social-links a:hover {
      transform: translateY(-2px);
      background: linear-gradient(135deg, #eef2ff, #dfe5ff);
      color: var(--primary);
    }
    .social-links svg {
      width: 18px;
      height: 18px;
      fill: currentColor;
    }
    .footer-bottom {
      margin-top: 20px;
      padding-top: 18px;
      border-top: 1px solid var(--line);
      color: var(--muted);
      font-size: 14px;
      display: flex;
      justify-content: space-between;
      gap: 12px;
      flex-wrap: wrap;
    }
    @media (max-width: 980px) {
      .hero-grid, .info-grid, .footer-top { grid-template-columns: 1fr; }
      .faq-grid { grid-template-columns: 1fr; }
      .reference-block { grid-template-columns: 1fr; gap: 24px; }
      .reference-copy p { max-width: none; }
      .reference-video-shell { min-height: 420px; }
      .ad-block, .ad-block--reverse { grid-template-columns: 1fr; gap: 24px; }
      .testimonial-grid { grid-template-columns: 1fr; }
      .faq-item summary { padding: 18px 20px; }
      .device-stage { min-height: 520px; }
      .device-img.left { transform: translateX(-128px) rotate(-10deg); }
      .device-img.right { transform: translateX(56px) rotate(9deg); }
      .feature-grid { grid-template-columns: 1fr; }
      .download-card { flex-direction: column; align-items: flex-start; }
      .nav { flex-wrap: wrap; padding: 14px 0; }
      .nav-links { gap: 18px; }
      .hero { padding-top: 30px; }
    }
    @media (max-width: 640px) {
      h1 { font-size: 44px; }
      .hero p { font-size: 16px; }
      .reference-video-shell { min-height: 320px; }
      .device-img { width: min(100%, 220px); }
      .device-img.left { transform: translateX(-88px) rotate(-10deg); }
      .device-img.right { transform: translateX(36px) rotate(9deg); }
      .info-copy, .feature-card, .ad-copy, .download-card, .footer-panel { padding: 22px; }
      .nav-links { font-size: 14px; }
    }


.download-page .download-main {
  padding-bottom: 48px;
}
.download-pagehead {
  padding: 28px 0 12px;
  text-align: center;
}
.download-pagehead h1 {
  margin: 0 0 12px;
  font-size: clamp(40px, 5vw, 72px);
  line-height: 1;
  letter-spacing: -0.05em;
}
.download-pagehead p {
  margin: 0 auto;
  max-width: 760px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}
.download-hero {
  padding: 34px 0 18px;
}
.download-hero-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 30px;
  align-items: start;
}
.install-column--mobile .install-panel,
.install-column--desktop .install-panel {
  min-height: 420px;
}
.install-column h2 {
  margin: 0 0 18px;
  text-align: center;
  font-size: clamp(28px, 3.2vw, 44px);
  line-height: 1.05;
  letter-spacing: -0.04em;
}
.install-panel {
  background: #b0c8f6;
  border-radius: 18px;
  min-height: 380px;
  display: grid;
  place-items: center;
  overflow: hidden;
  box-shadow: 0 18px 40px rgba(46, 67, 115, 0.12);
  padding: 18px;
}
.install-panel__image {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
}
.install-column {
  display: flex;
  flex-direction: column;
}
.install-column--mobile .install-panel__image {
  max-width: 100%;
}
.install-column--desktop .install-panel__image {
  max-width: 100%;
}
.install-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 18px;
}
.install-actions--center { justify-content: center; }
.install-note {
  margin: 14px 0 0;
  text-align: center;
  color: #485569;
  font-size: 14px;
  line-height: 1.7;
}
.install-note a { color: #4a61d8; font-weight: 700; }
.install-note--blue { color: #4a61d8; font-weight: 700; }
.install-alert {
  margin-top: 16px;
  padding: 16px 18px;
  border-radius: 14px;
  background: #f3f5fb;
  color: #6b7280;
  font-size: 14px;
  text-align: center;
}
.install-other {
  text-align: center;
  margin-top: 22px;
}
.install-other h3 {
  margin: 0 0 10px;
  font-size: clamp(24px, 2.8vw, 34px);
  letter-spacing: -0.03em;
}
.install-other p {
  margin: 0;
  color: #5b6b84;
  line-height: 1.9;
}
.download-link-blue {
  color: #3b45fd;
  font-weight: 700;
}
.download-hero-meta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 22px;
}
.download-hero-meta span {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,0.82);
  border: 1px solid var(--line);
  color: #334155;
  font-size: 13px;
  font-weight: 600;
}
.download-info .reference-block { align-items: center; }
.reference-static {
  width: 100%;
  display: block;
  border-radius: 20px;
}
.download-extras {
  padding-top: 8px;
}
.download-extra-head {
  margin-bottom: 26px;
}
.download-extra-head h2 {
  margin: 0 0 12px;
  font-size: clamp(36px, 4vw, 58px);
  line-height: 1.05;
  letter-spacing: -0.05em;
}
.download-extra-head p {
  margin: 0 auto;
  max-width: 820px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.8;
}
.download-extra-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.download-extra-card {
  padding: 28px;
  border-radius: 24px;
  background: rgba(255,255,255,0.9);
  border: 1px solid var(--line);
  box-shadow: 0 14px 35px rgba(41, 62, 106, 0.06);
  min-height: 220px;
}
.download-extra-card .step-badge {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: #eef2ff;
  color: #3b45fd;
  font-weight: 800;
  font-size: 16px;
  margin-bottom: 18px;
  box-shadow: inset 0 0 0 1px rgba(59, 69, 253, 0.12);
}
.download-extra-card h3 {
  margin: 0 0 12px;
  font-size: 26px;
  letter-spacing: -0.03em;
  line-height: 1.15;
}
.download-extra-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.9;
}
.download-system-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}
.download-system-card {
  padding: 28px;
  border-radius: 24px;
  background: rgba(255,255,255,0.9);
  border: 1px solid var(--line);
  box-shadow: 0 14px 35px rgba(41, 62, 106, 0.06);
}
.download-system-card h2 {
  margin: 0 0 14px;
  font-size: clamp(28px, 3vw, 40px);
  letter-spacing: -0.04em;
}
.download-system-card h3 {
  margin: 0 0 12px;
  font-size: 24px;
  letter-spacing: -0.03em;
}
.system-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 12px;
  border-radius: 999px;
  background: #eef2ff;
  color: #3b45fd;
  font-size: 13px;
  font-weight: 800;
  margin-bottom: 14px;
}
.download-system-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.95;
}
.about-page header {
  background: rgba(255,255,255,0.98);
  color: #1f2937;
  box-shadow: 0 10px 28px rgba(17, 24, 39, 0.06);
}
.about-page .nav-links a,
.about-page .lang-switch {
  color: #1f2937;
}
.about-page .nav-links a:hover,
.about-page .lang-switch:hover {
  color: var(--primary);
}
.about-hero {
  background: #fff;
  padding: 54px 0 30px;
}
.about-hero-inner {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 28px;
  align-items: center;
}
.about-eyebrow {
  margin: 0 0 14px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .18em;
}
.about-hero-copy h1 {
  margin: 0 0 16px;
  font-size: clamp(48px, 6vw, 84px);
  line-height: .95;
  letter-spacing: -0.06em;
}
.about-hero-copy p {
  margin: 0;
  max-width: 700px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.9;
}
.about-hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}
.about-hero-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.about-card {
  padding: 22px 24px;
  border-radius: 22px;
  background: rgba(255,255,255,0.95);
  border: 1px solid var(--line);
  box-shadow: 0 14px 35px rgba(41, 62, 106, 0.06);
}
.about-card--accent {
  background: linear-gradient(135deg, rgba(59,69,253,0.08), rgba(125,133,255,0.14));
}
.about-card span {
  display: inline-flex;
  margin-bottom: 12px;
  color: #3b45fd;
  font-weight: 800;
  letter-spacing: .08em;
}
.about-card h3 {
  margin: 0 0 10px;
  font-size: 24px;
  letter-spacing: -0.03em;
}
.about-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.85;
}
.about-overview {
  padding-top: 12px;
}
.about-chronology {
  padding-top: 0;
}
.about-timeline {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.about-timeline-card {
  padding: 26px;
  border-radius: 24px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 14px 35px rgba(41, 62, 106, 0.06);
}
.about-timeline-card h3 {
  margin: 0 0 10px;
  font-size: 24px;
  letter-spacing: -0.03em;
}
.about-timeline-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.85;
}
.about-contact {
  padding-top: 10px;
}
.about-contact .download-card {
  margin-top: 0;
}
.privacy-page {
  background: #fff;
}
.privacy-page .navbar.is-scrolled .nav {
  background: rgba(255,255,255,0.92);
}
.privacy-hero {
  padding: 54px 0 18px;
}
.privacy-title {
  text-align: left;
  max-width: 920px;
  margin: 0 auto 22px;
}
.privacy-eyebrow {
  margin: 0 0 12px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .18em;
}
.privacy-title h1 {
  margin: 0 0 14px;
  font-size: clamp(44px, 6vw, 78px);
  line-height: .95;
  letter-spacing: -0.06em;
}
.privacy-title p {
  margin: 0;
  max-width: 760px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.9;
}
.privacy-meta-card {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  padding: 22px;
  border-radius: 24px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 14px 35px rgba(41, 62, 106, 0.06);
}
.privacy-meta-card span {
  display: block;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 6px;
}
.privacy-meta-card strong {
  font-size: 16px;
  color: #1f2937;
}
.privacy-content {
  padding-top: 12px;
}
.privacy-article {
  max-width: 920px;
  margin: 0 auto;
  padding: 34px 38px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: #fff;
  box-shadow: 0 14px 35px rgba(41, 62, 106, 0.06);
}
.privacy-article section + section {
  margin-top: 28px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.privacy-article h2 {
  margin: 0 0 12px;
  font-size: 24px;
  letter-spacing: -0.03em;
}
.privacy-article p {
  margin: 0 0 12px;
  color: #354152;
  line-height: 1.95;
  text-align: justify;
}
.privacy-article p:last-child { margin-bottom: 0; }
.privacy-bottom-cta {
  padding-top: 10px;
}
.risk-page {
  background: #fff;
}
.risk-page .navbar.is-scrolled .nav {
  background: rgba(255,255,255,0.92);
}
.risk-hero {
  padding: 54px 0 18px;
}
.risk-title {
  text-align: left;
  max-width: 920px;
  margin: 0 auto 22px;
}
.risk-eyebrow {
  margin: 0 0 12px;
  color: #d97706;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .18em;
}
.risk-title h1 {
  margin: 0 0 14px;
  font-size: clamp(44px, 6vw, 78px);
  line-height: .95;
  letter-spacing: -0.06em;
}
.risk-title p {
  margin: 0;
  max-width: 760px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.9;
}
.risk-warning-card {
  max-width: 920px;
  margin: 0 auto;
  padding: 22px 24px;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(251,146,60,0.10), rgba(255,237,213,0.9));
  border: 1px solid rgba(217,119,6,0.18);
  box-shadow: 0 14px 35px rgba(41, 62, 106, 0.06);
}
.risk-warning-card strong {
  display: block;
  margin-bottom: 8px;
  color: #b45309;
  font-size: 15px;
}
.risk-warning-card p {
  margin: 0;
  color: #5b4630;
  line-height: 1.9;
}
.risk-content {
  padding-top: 12px;
}
.risk-article {
  max-width: 920px;
  margin: 0 auto;
  padding: 34px 38px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: #fff;
  box-shadow: 0 14px 35px rgba(41, 62, 106, 0.06);
}
.risk-article h2 {
  margin: 0 0 12px;
  font-size: 24px;
  letter-spacing: -0.03em;
}
.risk-article p {
  margin: 0 0 12px;
  color: #354152;
  line-height: 1.95;
  text-align: justify;
}
.risk-article p:last-child { margin-bottom: 0; }
.risk-bottom-cta {
  padding-top: 10px;
}
.news-page {
  background: linear-gradient(180deg, #f3f6ff 0%, #ffffff 280px, #ffffff 100%);
}
.news-hero {
  padding: 56px 0 28px;
}
.news-hero-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 24px;
  align-items: stretch;
}
.news-hero-copy {
  padding: 14px 0;
}
.news-eyebrow {
  margin: 0 0 14px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .18em;
}
.news-hero-copy h1 {
  margin: 0 0 14px;
  font-size: clamp(48px, 6vw, 84px);
  line-height: .95;
  letter-spacing: -0.06em;
}
.news-hero-copy p {
  margin: 0;
  max-width: 680px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.9;
}
.news-hero-panel {
  display: grid;
}
.news-feature-card,
.news-category-card,
.news-article-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: 0 14px 35px rgba(41, 62, 106, 0.06);
}
.news-feature-card {
  padding: 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 260px;
}
.news-tag,
.news-label {
  display: inline-flex;
  align-items: center;
  padding: 7px 12px;
  border-radius: 999px;
  background: #eef2ff;
  color: #3b45fd;
  font-size: 13px;
  font-weight: 800;
  width: fit-content;
}
.news-feature-card h2,
.news-article-card h3 {
  margin: 14px 0 10px;
  letter-spacing: -0.03em;
}
.news-feature-card h2 { font-size: clamp(28px, 3vw, 40px); }
.news-feature-card p,
.news-article-card p,
.news-category-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.9;
}
.news-meta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 18px;
  color: #5b687f;
  font-size: 13px;
}
.news-category-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}
.news-category-card {
  padding: 22px;
}
.news-category-card h3 {
  margin: 0 0 8px;
  font-size: 22px;
}
.news-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.news-article-card {
  padding: 24px;
  min-height: 230px;
}
.news-article-card h3 {
  font-size: 24px;
}
.news-archive {
  padding-top: 10px;
}
.news-archive .download-card {
  margin-top: 0;
}
.download-bottom-cta {
  padding-top: 18px;
}
.download-bottom-cta-panel {
  padding: 42px 32px;
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(59,69,253,0.08), rgba(125,133,255,0.12));
  border: 1px solid rgba(59,69,253,0.14);
  text-align: center;
  box-shadow: 0 18px 40px rgba(41, 62, 106, 0.08);
}
.download-bottom-cta-panel h2 {
  margin: 0 0 12px;
  font-size: clamp(32px, 4vw, 48px);
  letter-spacing: -0.05em;
}
.download-bottom-cta-panel p {
  margin: 0 auto 22px;
  max-width: 720px;
  color: var(--muted);
  line-height: 1.85;
}
@media (max-width: 980px) {
  .download-hero-grid { grid-template-columns: 1fr; }
  .install-panel { min-height: 280px; }
  .download-extra-grid { grid-template-columns: 1fr; }
  .download-system-grid { grid-template-columns: 1fr; }
  .about-hero-inner, .about-timeline { grid-template-columns: 1fr; }
  .about-hero-copy h1 { font-size: clamp(42px, 10vw, 68px); }
  .privacy-meta-card { grid-template-columns: 1fr; }
  .privacy-article { padding: 26px 22px; }
  .risk-article { padding: 26px 22px; }
  .news-hero-grid, .news-category-grid, .news-list { grid-template-columns: 1fr; }
  .news-hero-copy h1 { font-size: clamp(42px, 10vw, 68px); }
}