/* MP4ZIP 政策页专用样式，不影响其他产品政策。 */
.mp4zip-policy { --mp4-accent: #70608f; --mp4-line: #e5e0eb; }
.mp4-hero { display: flex; justify-content: space-between; align-items: center; gap: 32px; padding-block: 50px 34px; }
.mp4-heading { min-width: 0; }
.mp4-identity { display: flex; align-items: center; gap: 23px; }
.mp4-identity img { flex-shrink: 0; border-radius: 20px; box-shadow: 0 9px 24px #70608f12; }
.mp4-identity .eyebrow { color: var(--mp4-accent); font-size: 10px; letter-spacing: 2px; margin: 0 0 10px; }
.mp4-identity h1 { font-size: clamp(29px, 3.4vw, 43px); margin: 0; line-height: 1.25; letter-spacing: -1.5px; }
.mp4-tagline { font-size: 22px; line-height: 1.6; margin: 30px 0 9px; font-weight: 550; letter-spacing: .3px; }
.mp4-heading .page-description { font-size: 14px; line-height: 1.9; }
.mp4-platforms { flex-shrink: 0; border-left: 1px solid var(--mp4-line); padding: 8px 0 8px 42px; }
.mp4-platform-label { display: block; color: #77717e; font-size: 11px; letter-spacing: 1px; margin-bottom: 14px; }
.mp4-platform-list { display: flex; gap: 9px; }
.mp4-platform-list > span { font-size: 12px; font-weight: 550; color: #625372; padding: 7px 12px; border: 1px solid #ded7e8; border-radius: 6px; background: #f2eef6; }
.mp4-offline { display: flex; align-items: center; gap: 7px; color: #77717e; font-size: 11px; margin-top: 16px; }
.mp4-offline i { width: 6px; height: 6px; background: #8a997c; border-radius: 50%; }
.mp4-principles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); background: #fffefa; border: 1px solid var(--mp4-line); border-radius: 16px; padding: 27px 8px; }
.mp4-principle { display: flex; align-items: flex-start; gap: 15px; padding: 2px 25px; }
.mp4-principle + .mp4-principle { border-left: 1px solid #eeebf0; }
.mp4-principle-icon { display: grid; place-items: center; flex-shrink: 0; width: 42px; height: 42px; background: #f0ebf5; border-radius: 12px; color: var(--mp4-accent); }
.mp4-principle-icon svg { width: 23px; height: 23px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.mp4-principle h2 { font-size: 18px; line-height: 1.5; letter-spacing: .3px; margin: 0 0 7px; }
.mp4-principle p { color: #77717e; font-size: 12px; line-height: 1.9; margin: 0; }
.mp4-policy-details { padding: 20px 0 35px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; }
.mp4-policy-details > p { font-size: 12px; color: #77717e; margin: 0; }
.mp4-policy-details .policy-meta { margin: 0; color: #807b83; font-size: 10px; gap: 10px 18px; }
.mp4zip-policy .policy-layout { grid-template-columns: 200px minmax(0, 1fr); gap: 35px; padding-bottom: 60px; }
.mp4zip-policy .policy-toc { border-top: 0; padding-top: 24px; }
.mp4zip-policy .policy-toc h2 { font-size: 11px; letter-spacing: 1px; color: #827a8c; margin: 0 0 18px; }
.mp4zip-policy .policy-toc a { display: flex; gap: 13px; padding-block: 11px; color: #635d6a; }
.mp4zip-policy .policy-toc a > span { font-size: 10px; color: #a398b3; padding-top: 1px; font-variant-numeric: tabular-nums; }
.mp4zip-policy .policy-toc a:hover { color: var(--mp4-accent); text-decoration: underline; text-underline-offset: 5px; }
.mp4-toc-note { font-size: 11px; line-height: 1.9; margin: 28px 0 0; padding-top: 20px; border-top: 1px solid var(--line); color: #8b8490; }
.mp4zip-policy .policy-document { background: #fffefa; border: 1px solid #e9e5ed; border-radius: 18px; padding: 8px 37px 28px; font-size: 14px; line-height: 2; color: #645f69; }
.mp4zip-policy .policy-document section { padding-block: 28px; scroll-margin-top: 10px; }
.mp4zip-policy .policy-document section + section { border-top: 1px solid #eeebf0; }
.mp4zip-policy .policy-document h2 { display: flex; align-items: center; gap: 13px; font-size: 21px; line-height: 1.5; letter-spacing: -.3px; border: 0; padding: 0; margin: 0 0 18px; }
.mp4-section-number { display: grid; place-items: center; width: 30px; height: 30px; flex-shrink: 0; border-radius: 9px; color: var(--mp4-accent); background: #f0ecf5; font-size: 11px; font-weight: 500; letter-spacing: 0; }
.mp4zip-policy .policy-document p { margin: 12px 0 0; }
.mp4zip-policy .mp4-note { background: #f6f3f8; border-radius: 10px; padding: 15px 18px; margin-top: 20px; font-size: 12px; line-height: 1.9; }
.mp4zip-policy .mp4-note strong { color: #685a7a; font-weight: 550; }
.mp4zip-policy .mp4-note p { margin-top: 5px; }
.mp4zip-policy .policy-end { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 14px; border-top: 1px solid #eeebf0; margin-top: 0; padding-top: 23px; font-size: 11px; color: #81788d; }
.mp4zip-policy .policy-end .text-link { color: var(--mp4-accent); font-size: 11px; gap: 15px; }
@media (max-width: 1000px) {
  .mp4-hero { gap: 22px; }
  .mp4-platforms { padding-left: 23px; }
  .mp4-identity { gap: 17px; }
  .mp4-identity img { width: 66px; height: 66px; }
  .mp4-principle { gap: 12px; padding-inline: 18px; }
  .mp4-principle p br { display: none; }
  .mp4zip-policy .policy-layout { grid-template-columns: 170px minmax(0, 1fr); gap: 22px; }
  .mp4zip-policy .policy-document { padding-inline: 26px; }
}
@media (max-width: 760px) {
  .mp4-hero { display: block; padding-block: 34px 25px; }
  .mp4-identity { gap: 14px; }
  .mp4-identity img { width: 52px; height: 52px; border-radius: 14px; }
  .mp4-identity .eyebrow { font-size: 8px; letter-spacing: 1.1px; margin-bottom: 8px; }
  .mp4-identity h1 { font-size: clamp(24px, 6.4vw, 32px); letter-spacing: -1px; }
  .mp4-tagline { font-size: 19px; margin: 24px 0 8px; }
  .mp4-heading .page-description { font-size: 12px; }
  .mp4-platforms { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 12px; border: 0; padding: 0; margin-top: 22px; }
  .mp4-platform-label { margin: 0; font-size: 10px; }
  .mp4-platform-list { gap: 7px; }
  .mp4-platform-list > span { padding: 5px 10px; font-size: 11px; }
  .mp4-offline { margin-top: 0; font-size: 10px; }
  .mp4-principles { grid-template-columns: 1fr; padding: 2px 20px; border-radius: 13px; }
  .mp4-principle { padding: 18px 0; align-items: center; gap: 15px; }
  .mp4-principle + .mp4-principle { border-left: 0; border-top: 1px solid #eeebf0; }
  .mp4-principle h2 { font-size: 16px; margin-bottom: 3px; }
  .mp4-principle p { font-size: 11px; line-height: 1.8; }
  .mp4-principle-icon { width: 37px; height: 37px; border-radius: 10px; }
  .mp4-policy-details { padding: 18px 0 23px; gap: 11px; }
  .mp4-policy-details > p { font-size: 11px; line-height: 1.8; }
  .mp4-policy-details .policy-meta { font-size: 9px; gap: 6px 14px; line-height: 1.8; }
  .mp4zip-policy .policy-layout { display: block; padding-bottom: 35px; }
  .mp4zip-policy .policy-toc { padding: 18px 0; border-top: 1px solid var(--line); border-bottom: 0; margin-bottom: 12px; column-gap: 10px; }
  .mp4zip-policy .policy-toc h2 { margin-bottom: 7px; font-size: 10px; }
  .mp4zip-policy .policy-toc a { gap: 9px; padding-block: 7px; font-size: 11px; }
  .mp4-toc-note { display: none; }
  .mp4zip-policy .policy-document { padding: 0 20px 22px; font-size: 13px; border-radius: 13px; }
  .mp4zip-policy .policy-document section { padding-block: 25px; }
  .mp4zip-policy .policy-document h2 { font-size: 18px; gap: 10px; margin-bottom: 16px; }
  .mp4-section-number { width: 26px; height: 26px; font-size: 10px; border-radius: 7px; }
  .mp4zip-policy .mp4-note { padding: 13px 14px; font-size: 11px; }
}
@media print {
  .mp4-hero { padding: 0 0 18px; }
  .mp4-identity img, .mp4-principle-icon { display: none; }
  .mp4-platforms { border: 0; }
  .mp4-principles { padding-block: 12px; break-inside: avoid; }
  .mp4-principle { padding-inline: 12px; }
  .mp4zip-policy .policy-layout { display: block; }
  .mp4zip-policy .policy-document { border: 0; padding: 0; color: #222; font-size: 11pt; }
  .mp4zip-policy .policy-document section { padding-block: 16px; }
  .mp4zip-policy .policy-toc, .mp4zip-policy .policy-end { display: none; }
}