.product-page {
  --product-ink: #edf5fa;
  --product-muted: #a7becd;
  --product-line: rgba(158, 200, 224, .2);
  --product-blue: #43b1ff;
  color: var(--product-ink);
}
.product-detail { width: min(1120px, calc(100% - 64px)); margin: 0 auto; padding: 124px 0 72px; }
.product-detail h1, .product-detail h2, .product-detail h3, .product-detail p, .product-detail figure { margin: 0; }
.product-back { display: inline-flex; gap: 10px; align-items: center; color: var(--product-muted); font-size: 14px; transition: color .2s; }
.product-back:hover { color: var(--product-ink); }
.product-hero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: center; gap: 64px; padding: 40px 0 56px; }
.product-identity { display: flex; align-items: center; gap: 20px; }
.product-identity img { flex: none; width: 80px; height: 80px; object-fit: contain; border-radius: 22px; }
.product-identity > div { display: grid; gap: 7px; }
.product-identity span, .product-section-label { color: #7bcaff; font-size: 13px; font-weight: 600; letter-spacing: .05em; }
.product-identity h1 { font-size: clamp(32px, 3vw, 44px); line-height: 1.15; font-weight: 750; letter-spacing: -.025em; }
.product-hero-copy > h2 { margin-top: 30px; max-width: 500px; font-size: clamp(24px, 2.3vw, 32px); line-height: 1.45; font-weight: 650; text-wrap: balance; }
.product-hero-copy .product-summary { margin-top: 18px; color: #b9cdd9; font-size: 16px; line-height: 1.9; }
.product-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.product-button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 48px; padding: 12px 20px; border: 1px solid transparent; border-radius: 12px; font: inherit; font-size: 15px; font-weight: 650; line-height: 1.4; cursor: pointer; transition: background-color .2s, border-color .2s, transform .2s; }
.product-button svg, .product-text-link svg { width: 19px; height: 19px; flex: none; }
.product-button-primary { background: var(--product-blue); color: #051e30; }
.product-button-primary:hover { background: #76c7ff; transform: translateY(-2px); }
.product-button-secondary { color: var(--product-ink); border-color: var(--product-line); background: #0a203380; }
.product-button-secondary:hover { background: #143c53; border-color: #69b8e87a; }
.product-hero-copy .product-audience { margin-top: 16px; font-size: 12px; line-height: 1.7; color: var(--product-muted); }
.product-showcase { overflow: hidden; border-radius: 24px; border: 1px solid var(--product-line); background: #0a2033; box-shadow: 0 24px 64px #00000028; }
.product-showcase > img { width: 100%; height: auto; aspect-ratio: 3 / 2; object-fit: cover; }
.product-showcase figcaption { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; padding: 15px 20px; color: #dcecf5; font-size: 13px; }
.product-showcase figcaption span { color: #92b0c3; font-size: 12px; }
.product-features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; margin: 0; padding: 30px 0 34px; list-style: none; border-top: 1px solid var(--product-line); border-bottom: 1px solid var(--product-line); }
.product-features li { display: flex; gap: 14px; align-items: baseline; }
.product-feature-number { color: #62bfff; font-size: 12px; font-variant-numeric: tabular-nums; }
.product-features h2 { font-size: 17px; line-height: 1.6; font-weight: 650; }
.product-features p { margin-top: 8px; color: var(--product-muted); font-size: 14px; line-height: 1.85; }
.product-download { display: flex; align-items: center; justify-content: space-between; gap: 32px; margin-top: 56px; padding: 32px 36px; border: 1px solid var(--product-line); border-radius: 20px; background: rgba(6, 26, 42, .6); }
.product-download h2 { margin-top: 8px; font-size: 25px; line-height: 1.4; font-weight: 650; }
.product-download-copy p { margin-top: 10px; font-size: 14px; line-height: 1.8; color: var(--product-muted); }
.product-download-action { display: grid; justify-items: center; gap: 12px; flex: none; }
.product-button-pending { color: #9db6c6; border-color: var(--product-line); background: #122f44; cursor: not-allowed; }
.product-text-link { display: inline-flex; align-items: center; gap: 8px; color: #79c7ff; font-size: 14px; line-height: 1.5; transition: color .2s; }
.product-text-link:hover { color: #b7e2ff; }
.product-guide, .product-questions, .product-related { margin-top: 72px; }
.product-section-heading { display: flex; align-items: flex-end; justify-content: space-between; flex-wrap: wrap; gap: 16px; margin-bottom: 28px; }
.product-section-heading h2, .product-questions > h2 { font-size: 27px; line-height: 1.4; font-weight: 650; }
.product-section-heading .product-section-label + h2 { margin-top: 9px; }
.product-steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 36px; margin: 0; padding: 0; list-style: none; }
.product-step-number { display: inline-block; color: #6ac0f9; font-size: 30px; font-weight: 500; line-height: 1; font-variant-numeric: tabular-nums; }
.product-steps h3 { margin-top: 20px; font-size: 18px; line-height: 1.5; font-weight: 650; }
.product-steps p { margin-top: 10px; color: var(--product-muted); font-size: 14px; line-height: 1.9; }
.product-tutorial-link { display: flex; align-items: center; gap: 16px; padding: 22px 24px; margin-top: 30px; border: 1px solid var(--product-line); border-radius: 16px; background: rgba(8, 31, 48, .45); transition: background .2s, border-color .2s; }
.product-tutorial-link:hover, .product-related-link:hover { border-color: #64beff80; background: #163a53; }
.product-tutorial-icon { display: grid; place-items: center; flex: none; width: 40px; height: 40px; background: #43b1ff1a; border-radius: 12px; color: #79c7ff; font-size: 24px; }
.product-tutorial-link > span:nth-child(2) { display: grid; gap: 7px; }
.product-tutorial-link small { color: var(--product-muted); font-size: 12px; }
.product-tutorial-link strong { font-size: 15px; line-height: 1.6; font-weight: 550; }
.product-tutorial-link > svg { width: 20px; height: 20px; flex: none; margin-left: auto; color: #79c7ff; }
.product-questions { max-width: 820px; }
.product-questions > h2 { margin-bottom: 20px; }
.product-questions details { border-bottom: 1px solid var(--product-line); }
.product-questions summary { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 20px 0; cursor: pointer; font-size: 16px; line-height: 1.6; list-style: none; }
.product-questions summary::-webkit-details-marker { display: none; }
.product-questions summary span { color: #79c7ff; font-size: 24px; font-weight: 400; transition: transform .2s; }
.product-questions details[open] summary span { transform: rotate(45deg); }
.product-questions details p { padding: 0 36px 22px 0; color: var(--product-muted); font-size: 14px; line-height: 1.9; }
.product-related-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.product-related-link { display: flex; align-items: center; gap: 16px; padding: 22px; border: 1px solid var(--product-line); border-radius: 16px; background: rgba(8, 31, 48, .45); transition: background .2s, border-color .2s; }
.product-related-link img { width: 48px; height: 48px; border-radius: 14px; object-fit: contain; }
.product-related-link > span { display: grid; gap: 5px; }
.product-related-link strong { font-size: 16px; font-weight: 600; }
.product-related-link small { color: var(--product-muted); font-size: 12px; }
.product-related-link > svg { width: 20px; height: 20px; margin-left: auto; color: #79c7ff; }
.product-page .linxi-footer { --footer-ink: #e5f1f8; --footer-muted: #a5bdce; --footer-line: #84b8d92e; padding-top: 40px; background: transparent; border-top: 1px solid var(--product-line); }
.product-page .linxi-footer::before, .product-page .linxi-footer > canvas { display: none; }
.product-page .linxi-footer .footer_content { width: min(1120px, calc(100% - 64px)); }
.product-page :is(a, button, summary):focus-visible { outline: 2px solid #79c7ff; outline-offset: 5px; }
.product-detail section[id] { scroll-margin-top: 116px; }
@media (max-width: 1000px) {
  .product-hero { gap: 36px; }
  .product-features { gap: 24px; }
}
@media (max-width: 767px) {
  .product-detail { width: calc(100% - 40px); padding-top: 102px; padding-bottom: 56px; }
  .product-hero { grid-template-columns: minmax(0, 1fr); gap: 32px; padding: 32px 0 36px; }
  .product-identity img { width: 68px; height: 68px; border-radius: 18px; }
  .product-hero-copy > h2 { margin-top: 24px; font-size: 27px; max-width: 420px; }
  .product-hero-copy .product-summary { font-size: 15px; }
  .product-actions { gap: 10px; }
  .product-button { padding-inline: 17px; font-size: 14px; }
  .product-showcase { border-radius: 18px; }
  .product-features, .product-steps { grid-template-columns: minmax(0, 1fr); gap: 26px; }
  .product-features { padding-block: 26px; }
  .product-features li { gap: 16px; }
  .product-features p { margin-top: 4px; }
  .product-download { align-items: flex-start; flex-direction: column; gap: 22px; padding: 24px; margin-top: 36px; border-radius: 16px; }
  .product-download h2 { font-size: 24px; }
  .product-download-action { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
  .product-guide, .product-questions, .product-related { margin-top: 48px; }
  .product-section-heading h2, .product-questions > h2 { font-size: 25px; }
  .product-steps li { display: grid; grid-template-columns: 40px minmax(0, 1fr); column-gap: 18px; }
  .product-step-number { grid-row: span 2; padding-top: 3px; font-size: 26px; }
  .product-steps h3 { margin-top: 0; font-size: 17px; }
  .product-steps p { margin-top: 8px; }
  .product-tutorial-link { padding: 18px; gap: 12px; }
  .product-related-grid { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .product-page .linxi-footer .footer_content { width: calc(100% - 40px); }
}
@media (prefers-reduced-motion: reduce) {
  .product-page * { scroll-behavior: auto; transition: none !important; }
}