/* 居中标题、细线卡片与轻量动效；内容继续来自各首页模板和当前模型接口。 */
main#top { width: min(1280px, calc(100% - 64px)); }
.ad-hero { position: relative; display: flex; flex-direction: column; gap: 0; margin: 0; padding: 48px 0 0; border: 0; border-radius: 0; background: none; box-shadow: none; isolation: isolate; }
.ad-hero::before, .cn-hero::before { content: none; }
.ad-copy { width: 100%; max-width: 896px; text-align: center; animation: home-appear .45s ease both; }
.ad-badge, .cn-badge { min-height: 26px; height: auto; gap: 7px; padding: 3px 10px; border: 1px solid var(--line); border-radius: 999px; color: var(--text-4); background: var(--surface-2); font-size: 12px; font-weight: 400; line-height: 18px; }
.ad-badge::before, .cn-badge::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }
.ad-copy h1 { max-width: none; margin: 20px auto 0; color: var(--text-1); font-size: clamp(36px, 4.4vw, 56px); font-weight: 700; line-height: 1.2; letter-spacing: -1.4px; }
.ad-sub { max-width: 640px; margin: 16px auto 0; color: var(--text-4); font-size: 16px; line-height: 1.625; text-wrap: balance; }
.ad-actions { justify-content: center; gap: 16px; margin-top: 24px; }
.home-primary, .ad-download { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-width: 200px; min-height: 44px; padding: 0 32px; border: 1px solid var(--border-input); border-radius: 6px; background: var(--surface-2); color: var(--text-3); font-size: 14px; font-weight: 500; }
.home-primary { color: var(--primary-ink); background: var(--primary-fill); border-color: var(--primary-fill); transition: background .15s ease; }
.home-primary:hover { color: var(--primary-ink); background: var(--primary-fill-hover); border-color: var(--primary-fill-hover); }
.home-primary svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 1.5; transition: transform .18s ease; }
.home-primary:hover svg { transform: translateX(2px); }
.ad-download { color: var(--text-4); border-style: solid; background: var(--surface-2); }
.ad-hint { margin-top: 12px; color: var(--text-5); font-size: 12px; }
.ad-stage { width: min(896px, 100%); aspect-ratio: 11 / 5; margin-top: 40px; border: 1px solid var(--line); border-radius: 8px; box-shadow: var(--shadow-hover); }
.ad-slide img { object-fit: cover; object-position: top; }
.ad-slide.active img { animation: none; }
.ad-slide { transform: none; transition: opacity .5s ease; }
.ad-nav { border-radius: 7px; background: color-mix(in srgb, var(--surface-0) 95%, transparent); }
.ad-dot { width: 6px; height: 6px; }
.ad-dot.active { width: 22px; }
.catalog { padding: 0 0 80px; }
.model-promise { display: block; margin-top: 64px; padding: 0; border: 0; border-radius: 0; overflow: visible; background: none; box-shadow: none; }
.catalog .model-promise-title { font-size: 24px; font-weight: 600; line-height: 1.4; letter-spacing: -.5px; text-align: left; }
.model-promise-title em { color: var(--text-1); }
.model-promise-desc { margin-top: 8px; color: var(--text-4); font-size: 14px; line-height: 1.625; text-align: left; }
.model-promise-visual { display: none; }
.model-promise-features { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; margin-top: 24px; border: 0; border-radius: 0; overflow: visible; }
.mp-feature { flex-direction: column; align-items: flex-start; gap: 16px; min-height: 160px; padding: 24px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface-2); transition: border-color .15s ease, background .15s ease; }
.mp-feature:hover { border-color: var(--border-input-hover); background: var(--surface-2); }
.mp-icon { width: 22px; height: 22px; }
.mp-feature .mp-icon { color: var(--text-3); }
.mp-icon svg { stroke-width: 1.5; }
.mp-feature-copy strong { font-size: 16px; font-weight: 500; }
.mp-feature-copy span { margin-top: 6px; font-size: 14px; line-height: 1.625; }
.catalog-bar { margin-top: 48px; }
.filter-row { margin: 0; border-color: var(--line); }
.filter { padding: 0 0 12px; min-height: 36px; border-bottom-width: 2px; font-size: 16px; font-weight: 500; letter-spacing: 0; }
.filter.active { color: var(--accent); border-bottom-color: var(--accent); }
.filter:hover { background: transparent; }
.status { min-height: 46px; font-size: 13px; color: var(--text-4); }
.resource-grid { gap: 24px; }
.model-card, .resource-card { padding: 24px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface-2); box-shadow: none; transition: border-color .15s ease, background .15s ease; }
.model-card:hover, .resource-card:hover { border-color: var(--border-input-hover); background: var(--surface-2); box-shadow: none; filter: none; transform: none; }
.mc-title { font-size: 16px; font-weight: 500; letter-spacing: 0; }
.mc-model-row { margin-top: 8px; }
.mc-model-name { font-size: 12px; font-weight: 400; color: var(--text-4); }
.mc-desc { height: 68px; margin-top: 16px; font-size: 14px; line-height: 1.625; }
.mc-tags-row { gap: 5px; margin-top: 14px; }
.mc-tag { height: 22px; padding-inline: 7px; border: 1px solid var(--line); border-radius: 4px; color: var(--text-3); background: var(--surface-3); font-size: 12px; font-weight: 400; }
.mc-tag-cat { border-color: var(--accent-soft-3); color: var(--accent); background: var(--accent-soft); }
.mc-publish { margin: 14px 0; font-size: 12px; }
.mc-price-row { padding-top: 14px; border-top-color: var(--line); align-items: center; }
.mc-period-rule { color: var(--text-4); font-size: 11px; }
.mc-price-line { column-gap: 10px; }
.mc-price-inline .mc-price-value { font-size: 13px; font-weight: 500; }
.mc-price-inline .mc-price-label, .mc-price-inline .mc-price-unit { font-size: 11px; }
.mc-icon-btn { color: var(--text-4); border-radius: 4px; }
.mc-icon-btn:hover { background: var(--accent-soft); }

/* 国内首页保留独立的产品文案、截图和菜单。 */
.cn-hero { position: relative; display: flex; flex-direction: column; gap: 40px; padding: 48px 0 60px; isolation: isolate; }
.cn-hero-copy { width: 100%; text-align: center; }
.cn-hero h1 { margin-top: 20px; font-size: clamp(36px, 4.4vw, 56px); font-weight: 700; line-height: 1.2; letter-spacing: -1.4px; }
.cn-hero h1 em { color: var(--text-1); }
.cn-hero-description { max-width: 680px; margin: 16px auto 0; color: var(--text-4); font-size: 16px; line-height: 1.625; text-wrap: balance; }
.cn-hero-capabilities, .cn-hero-actions { justify-content: center; }
.cn-hero-capabilities span { padding: 3px 9px; background: transparent; border-color: var(--line); border-radius: 4px; font-size: 12px; }
.cn-hero-actions { margin-top: 24px; }
.cn-primary-link, .cn-download, .cn-retry { min-height: 44px; border-radius: 6px; font-size: 14px; font-weight: 500; }
.cn-primary-link, .cn-download { min-width: 200px; }
.cn-primary-link { color: var(--primary-ink); background: var(--primary-fill); border-color: var(--primary-fill); transition: background .15s ease, border-color .15s ease; }
.cn-primary-link:hover { background: var(--primary-fill-hover); border-color: var(--primary-fill-hover); filter: none; }
.cn-model-note { justify-content: center; }
.showcase-carousel { width: min(900px, 100%); max-width: 900px; }
.showcase-label, .showcase-mark { color: var(--text-4); }
.showcase-slide { box-shadow: var(--shadow-hover); }
.cn-software, .cn-models { padding-block: 52px; border-top-color: var(--line); }
.cn-section-heading h2 { font-size: 24px; font-weight: 600; letter-spacing: -.5px; }
.cn-eyebrow { color: var(--text-4); font-size: 12px; font-weight: 400; }
.cn-feature-grid { gap: 24px; border: 0; border-radius: 0; overflow: visible; }
.cn-feature { padding: 24px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface-2); transition: border-color .15s ease; }
.cn-feature:hover { border-color: var(--border-input-hover); background: var(--surface-2); }
.cn-feature h3 { font-size: 16px; font-weight: 500; }
.cn-feature p { font-size: 14px; line-height: 1.625; }
.cn-feature-top svg { width: 25px; height: 25px; padding: 0; background: none; color: var(--text-3); stroke: currentColor; }
.cn-feature-number { color: var(--text-5); font-weight: 400; }
.cn-feature a { color: var(--accent); font-weight: 400; }
.cn-model-card { padding: 24px; border-radius: 8px; transition: border-color .15s ease; }
.cn-model-card:hover { border-color: var(--border-input-hover); transform: none; }
.cn-model-card h3 { font-size: 16px; font-weight: 500; }
.cn-model-id { font-size: 12px; }
.cn-model-kind { font-size: 12px; font-weight: 400; }
.cn-model-description { font-size: 14px; line-height: 1.625; }

@keyframes home-appear { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
@media (max-width: 1000px) {
  .mp-feature { padding: 20px 16px; }
  .model-promise-features { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .resource-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cn-feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 620px) {
  main#top { width: calc(100% - 32px); }
  .ad-hero, .cn-hero { padding-top: 36px; }
  .ad-copy h1, .cn-hero h1 { margin-top: 20px; font-size: 34px; line-height: 1.3; letter-spacing: -1px; }
  .ad-sub, .cn-hero-description { margin-top: 16px; font-size: 14px; line-height: 1.625; }
  .ad-actions { margin-top: 22px; gap: 9px; }
  .home-primary, .ad-download { flex: 1 1 0; width: auto; min-width: 0; max-width: 200px; min-height: 44px; padding-inline: 16px; font-size: 13px; }
  .ad-stage { margin-top: 30px; aspect-ratio: 5 / 3; border-radius: 7px; }
  .model-promise { margin-top: 40px; }
  .catalog .model-promise-title, .cn-section-heading h2 { font-size: 22px; }
  .model-promise-desc { font-size: 13px; line-height: 1.75; }
  .model-promise-features { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 24px; }
  .mp-feature { padding: 16px; min-height: 144px; }
  .mp-feature-copy strong { font-size: 14px; }
  .mp-feature-copy span { font-size: 13px; }
  .catalog-bar { margin-top: 36px; }
  .filter { font-size: 16px; }
  .resource-grid, .cn-model-grid { grid-template-columns: 1fr; gap: 12px; }
  .model-card, .resource-card, .cn-model-card { padding: 20px; }
  .cn-hero { gap: 32px; padding-bottom: 36px; }
  .cn-primary-link, .cn-download { min-width: 0; }
  .cn-software, .cn-models { padding-block: 36px; }
  .cn-feature-grid { gap: 12px; }
  .cn-feature { padding: 20px 16px; }
  .cn-feature h3 { font-size: 14px; }
  .cn-feature p { font-size: 13px; }
  .cn-feature a { font-size: 12px; }
}