:root {
  --site-primary: #287efb;
  --site-text: #252b3a;
  --site-muted: #6b7280;
  --site-bg: #f5f7fa;
  --site-surface: #fff;
  --site-border: #e5e7eb;
  --site-radius: 8px;
  --site-width: 1200px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--site-text); background: var(--site-bg); font-family: "PingFang SC", "Microsoft YaHei", Arial, sans-serif; line-height: 1.7; }
a { color: inherit; text-decoration: none; }
img, video { display: block; max-width: 100%; }
img[hidden] { display: none !important; }
button { font: inherit; }
.site-header { position: sticky; top: 0; z-index: 30; display: flex; align-items: center; justify-content: space-between; min-height: 72px; padding: 0 max(24px, calc((100% - var(--site-width)) / 2)); background: rgb(255 255 255 / 96%); border-bottom: 1px solid var(--site-border); }
.brand { display: flex; gap: 10px; align-items: center; font-size: 18px; font-weight: 700; }
.brand-logo { display: block; width: auto; max-width: 128px; height: 32px; object-fit: contain; }
.nav { display: flex; align-items: center; gap: 34px; font-size: 15px; }
.nav a:hover { color: var(--site-primary); }
.menu-toggle { display: none; padding: 6px 12px; background: var(--site-surface); border: 1px solid var(--site-border); border-radius: 4px; }
main { min-height: 65vh; }
.hero { position: relative; display: flex; align-items: center; min-height: 520px; max-width: var(--site-width); margin: 48px auto; padding: 64px; overflow: hidden; background: #eaf2ff; border: 1px solid #dce8fb; border-radius: 16px; box-shadow: 0 20px 60px rgb(37 99 235 / 10%); }
.hero-copy { position: relative; z-index: 2; width: min(66%, 720px); }
.hero-copy h1 { margin: 12px 0 20px; font-size: clamp(38px, 3.6vw, 50px); line-height: 1.15; }
.hero-subtitle, .lead { color: var(--site-muted); font-size: 17px; }
.eyebrow { margin: 0; color: var(--site-primary); font-size: 13px; font-weight: 700; letter-spacing: .08em; }
.hero-actions { display: flex; gap: 12px; margin-top: 30px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 44px; padding: 0 22px; border: 1px solid var(--site-primary); border-radius: 4px; font-weight: 600; cursor: pointer; }
.button.primary { color: #fff; background: var(--site-primary); }
.button.secondary { color: var(--site-primary); background: #fff; }
.section-grid, .content-section, .page-intro, .product-detail, .product-detail-body, .article-detail, .site-footer { width: min(calc(100% - 48px), var(--site-width)); margin-right: auto; margin-left: auto; }
.section-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 48px; margin-bottom: 72px; }
.feature-card { display: grid; grid-template-columns: 18px 1fr 24px; gap: 18px; min-height: 180px; padding: 28px; background: var(--site-surface); border: 1px solid var(--site-border); border-radius: var(--site-radius); }
.feature-card img { width: 100%; height: 140px; margin-bottom: 18px; object-fit: cover; border-radius: 6px; }
.feature-image-frame { display: block; min-height: 140px; margin-bottom: 18px; overflow: hidden; background: #eef2f7; border-radius: 6px; }
.feature-image-frame img { margin-bottom: 0; }
.feature-card h2 { margin: 0 0 8px; font-size: 24px; }
.feature-card p { margin: 0; color: var(--site-muted); }
.feature-index, .arrow { color: var(--site-primary); }
.content-section { margin-top: 72px; margin-bottom: 72px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; margin-bottom: 26px; }
.section-heading h2 { margin: 7px 0 0; font-size: 32px; }
.section-heading > a { color: var(--site-primary); }
.page-intro { margin-top: 42px; margin-bottom: 32px; padding: 38px 42px; text-align: center; background: var(--site-surface); border-radius: var(--site-radius); }
.page-intro h1 { margin: 8px 0 10px; font-size: 36px; }
.page-intro > p:last-child { max-width: 720px; margin: 0 auto; color: var(--site-muted); }
.reference-app-list { margin-top: 32px; }
.product-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.product-card { display: flex; min-width: 0; flex-direction: column; overflow: hidden; background: var(--site-surface); border: 1px solid var(--site-border); border-radius: var(--site-radius); transition: box-shadow .2s, transform .2s; }
.product-card:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgb(31 41 55 / 10%); }
.product-visual { display: flex; align-items: center; justify-content: center; aspect-ratio: 1; overflow: hidden; color: var(--site-muted); background: #eef2f7; }
.product-visual img { width: 100%; height: 100%; object-fit: cover; transition: transform .25s; }
.product-card:hover .product-visual img { transform: scale(1.025); }
.pagination { display: flex; align-items: center; justify-content: center; gap: 12px; margin-top: 36px; }
.pagination-pages { display: flex; gap: 8px; }
.pagination-control, .pagination-page { display: inline-flex; min-width: 40px; min-height: 40px; align-items: center; justify-content: center; padding: 0 12px; color: var(--site-text); background: var(--site-surface); border: 1px solid var(--site-border); border-radius: 6px; }
.pagination-page.is-current { color: #fff; background: var(--site-primary); border-color: var(--site-primary); }
.pagination-control.is-disabled { color: var(--site-muted); cursor: not-allowed; opacity: .55; }
.product-body { display: flex; flex: 1; flex-direction: column; padding: 20px; }
.product-body h3 { margin: 12px 0 7px; font-size: 20px; line-height: 1.35; }
.product-body p { display: -webkit-box; overflow: hidden; margin: 0 0 20px; color: var(--site-muted); -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.tag-row { display: flex; flex-wrap: wrap; gap: 7px; }
.tag { padding: 2px 9px; color: var(--site-primary); font-size: 12px; background: #eef5ff; border-radius: 3px; }
.card-bottom { display: flex; align-items: center; justify-content: space-between; margin-top: auto; padding-top: 15px; border-top: 1px solid var(--site-border); }
.card-bottom strong { color: #ef4444; font-size: 20px; }
.card-bottom button { color: var(--site-primary); font-weight: 600; background: none; border: 0; cursor: pointer; }
.reference-news-list { max-width: var(--site-width); margin-top: 32px; padding: 30px; background: var(--site-surface); border-radius: var(--site-radius); }
.article-list { display: grid; gap: 0; }
.article-row { display: grid; grid-template-columns: 282px minmax(0, 1fr); gap: 28px; padding: 24px 0; border-bottom: 1px solid var(--site-border); }
.article-row:first-child { padding-top: 0; }
.article-row:last-child { padding-bottom: 0; border-bottom: 0; }
.article-row img, .article-placeholder { width: 282px; height: 159px; object-fit: cover; background: #eef2f7; border-radius: 6px; }
.article-image-frame { display: block; width: 282px; height: 159px; overflow: hidden; background: #eef2f7; border-radius: 6px; }
.article-image-frame img, .article-image-frame .article-placeholder { width: 100%; height: 100%; }
.is-image-missing { position: relative; overflow: hidden; background: linear-gradient(145deg, #edf3ff, #eeeafa); }
.is-image-missing::before, .is-image-missing::after { position: absolute; content: ""; border: 1px solid rgb(91 116 190 / 20%); border-radius: 18px; transform: rotate(28deg); }
.is-image-missing::before { inset: 22% 28%; }
.is-image-missing::after { inset: 35% 18%; transform: rotate(-18deg); }
.article-row h3 { margin: 0 0 10px; font-size: 21px; line-height: 1.4; }
.article-row p { display: -webkit-box; overflow: hidden; margin: 0 0 14px; color: var(--site-muted); -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.article-row time { color: #9ca3af; font-size: 13px; }
.article-row:hover h3 { color: var(--site-primary); }
.product-detail { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr); gap: 44px; margin-top: 48px; }
.detail-media { display: grid; gap: 14px; align-content: start; min-width: 0; }
.carousel-track { position: relative; aspect-ratio: 1; overflow: hidden; background: var(--site-surface); border: 1px solid var(--site-border); border-radius: var(--site-radius); }
.carousel-slide { position: absolute; inset: 0; display: none; align-items: center; justify-content: center; background: linear-gradient(135deg, #f8fafc, #eaf2ff); }
.carousel-slide.is-active { display: flex; }
.carousel-slide img, .carousel-slide video, .media-placeholder { width: 100%; height: 100%; object-fit: cover; background: transparent; }
.carousel-controls { display: grid; grid-template-columns: 42px 1fr 42px; gap: 14px; align-items: center; }
.carousel-controls.is-hidden { display: none; }
.carousel-controls > button { width: 42px; height: 42px; color: var(--site-primary); font-size: 26px; line-height: 1; background: var(--site-surface); border: 1px solid var(--site-border); border-radius: 50%; cursor: pointer; }
.carousel-dots { display: flex; gap: 8px; justify-content: center; }
.carousel-dots button { width: 8px; height: 8px; padding: 0; background: #cbd5e1; border: 0; border-radius: 50%; cursor: pointer; }
.carousel-dots button.is-active { width: 24px; background: var(--site-primary); border-radius: 8px; }
.media-placeholder { display: flex; align-items: center; justify-content: center; padding: 30px; color: var(--site-muted); font-size: 28px; }
.detail-copy { display: flex; align-self: stretch; flex-direction: column; padding: 34px; background: var(--site-surface); border: 1px solid var(--site-border); border-radius: var(--site-radius); }
.detail-copy h1 { margin: 10px 0 16px; font-size: 34px; line-height: 1.3; }
.price { display: flex; flex-direction: column; margin: 28px 0 18px; }
.price small { color: var(--site-muted); }
.price strong { color: #ef4444; font-size: 36px; }
.buy-button { width: 100%; margin-top: auto; border: 0; }
.rich-content { grid-column: 1 / -1; width: 100%; margin-top: 4px; padding: 36px 42px; overflow-wrap: anywhere; background: var(--site-surface); border-radius: var(--site-radius); }
.rich-content img { height: auto; margin: 20px auto; border-radius: 6px; }
.rich-content table { display: block; max-width: 100%; overflow: auto; border-collapse: collapse; }
.rich-content td, .rich-content th { padding: 10px; border: 1px solid var(--site-border); }
.product-detail-body { display: grid; grid-template-columns: minmax(0, 1fr) 260px; align-items: start; gap: 24px; margin-top: 24px; margin-bottom: 56px; }
.product-detail-main { min-width: 0; overflow: hidden; background: var(--site-surface); border: 1px solid var(--site-border); border-radius: var(--site-radius); }
.product-tabs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); padding: 0 22px; border-bottom: 1px solid var(--site-border); }
.product-tabs button { position: relative; min-height: 66px; padding: 12px 16px; color: var(--site-muted); font: inherit; font-weight: 700; background: transparent; border: 0; cursor: pointer; }
.product-tabs button::after { position: absolute; right: 18%; bottom: -1px; left: 18%; height: 3px; content: ""; background: transparent; border-radius: 3px 3px 0 0; }
.product-tabs button:hover, .product-tabs button.is-active { color: var(--site-primary); }
.product-tabs button.is-active::after { background: var(--site-primary); }
.product-tab-panel { min-height: 280px; }
.product-tab-panel .rich-content { margin: 0; border-radius: 0; }
.product-tab-empty { display: grid; min-height: 280px; padding: 36px; color: var(--site-muted); place-items: center; }
.release-note-list { display: grid; gap: 12px; padding: 28px; }
.release-note-item { display: grid; grid-template-columns: 150px minmax(0, 1fr); align-items: start; gap: 16px; padding: 16px 18px; background: var(--site-bg); border: 1px solid var(--site-border); border-radius: 10px; }
.release-note-meta { display: grid; gap: 5px; }
.release-note-meta strong { color: var(--site-primary); }
.release-note-meta time { color: var(--site-muted); font-size: 12px; }
.release-note-item .rich-content { min-width: 0; padding: 0; background: transparent; border-radius: 0; }
.release-note-item .rich-content > * { background-color: transparent !important; }
.product-sku-list { display: grid; gap: 8px; margin: 14px 0; }
.product-sku-item { display: flex; justify-content: space-between; gap: 16px; padding: 10px 12px; background: var(--site-bg); border: 1px solid var(--site-border); border-radius: 8px; }
.product-sku-item strong { white-space: nowrap; color: var(--site-primary); }
.release-note-item > span { padding: 4px 8px; color: var(--site-primary); font-size: 12px; font-weight: 800; text-align: center; background: color-mix(in srgb, var(--site-primary) 10%, white); border-radius: 5px; }
.release-note-fixed > span { color: #d97706; background: #fff7ed; }
.release-note-improved > span { color: #15803d; background: #f0fdf4; }
.release-note-item p { margin: 3px 0 0; line-height: 1.7; }
.recommended-apps { padding: 20px; background: var(--site-surface); border: 1px solid var(--site-border); border-radius: var(--site-radius); }
.recommended-apps h2 { margin: 0 0 16px; padding-bottom: 14px; font-size: 18px; border-bottom: 1px solid var(--site-border); }
.recommended-app-list { display: grid; gap: 16px; }
.recommended-app-card { display: grid; grid-template-columns: 72px minmax(0, 1fr); gap: 12px; color: inherit; }
.recommended-app-cover { display: block; overflow: hidden; aspect-ratio: 1; background: var(--site-bg); border-radius: 8px; }
.recommended-app-cover img { width: 100%; height: 100%; object-fit: cover; }
.recommended-app-cover i { display: grid; width: 100%; height: 100%; padding: 8px; color: var(--site-primary); font-size: 11px; font-style: normal; place-items: center; }
.recommended-app-copy { display: flex; min-width: 0; flex-direction: column; }
.recommended-app-copy strong { overflow: hidden; font-size: 14px; text-overflow: ellipsis; white-space: nowrap; }
.recommended-app-copy small { display: -webkit-box; overflow: hidden; margin-top: 4px; color: var(--site-muted); font-size: 11px; line-height: 1.5; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.recommended-app-copy b { margin-top: auto; color: var(--site-primary); font-size: 13px; }
.article-detail { max-width: 960px; margin-top: 48px; padding: 44px 56px; background: var(--site-surface); border-radius: var(--site-radius); }
.article-detail header { text-align: center; }
.article-detail h1 { margin: 0 0 12px; font-size: 36px; line-height: 1.4; }
.article-detail time { color: #9ca3af; font-size: 13px; }
.article-detail .lead { margin: 20px auto 0; }
.article-cover { width: 100%; max-height: 520px; margin: 34px 0 0; object-fit: cover; border-radius: 6px; }
.article-detail .rich-content { margin-top: 20px; padding: 20px 0 0; text-align: left; }
main { padding-bottom: 72px; }
.site-footer { padding: 24px 0 32px; color: var(--site-muted); font-size: 14px; border-top: 1px solid var(--site-border); }
.site-footer-inner { display: flex; flex-wrap: wrap; gap: 10px 24px; align-items: center; justify-content: center; }
.site-footer a { transition: color .2s ease; }
.site-footer a:hover { color: var(--site-primary); }
.buy-dialog { width: min(620px, calc(100% - 28px)); padding: 32px; color: var(--site-text); background: var(--site-surface); border: 0; border-radius: var(--site-radius); box-shadow: 0 24px 80px rgb(0 0 0 / 30%); }
.buy-dialog::backdrop { background: rgb(17 24 39 / 65%); }
.dialog-close { position: absolute; top: 14px; right: 16px; font-size: 26px; background: none; border: 0; cursor: pointer; }
.contact-panel { display: flex; gap: 22px; align-items: center; margin-top: 22px; padding: 18px; background: var(--site-bg); border-radius: 6px; }
.contact-panel img { width: 140px; height: 140px; object-fit: contain; background: #fff; }
.contact-panel p { display: flex; flex-direction: column; margin: 7px 0; }
.contact-panel small, .purchase-content { color: var(--site-muted); }
.not-found { max-width: 700px; margin: 100px auto; padding: 24px; text-align: center; }
.not-found > strong { color: var(--site-primary); font-size: 110px; line-height: 1; }
.empty { padding: 40px; color: var(--site-muted); text-align: center; background: var(--site-surface); border: 1px dashed var(--site-border); }
@media (max-width: 900px) {
  .product-detail { grid-template-columns: 1fr; }
  .product-detail-body { grid-template-columns: 1fr; }
  .section-grid { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .article-row { grid-template-columns: 220px minmax(0, 1fr); }
  .article-row img, .article-placeholder { width: 220px; height: 130px; }
  .article-image-frame { width: 220px; height: 130px; }
}
@media (max-width: 640px) {
  .site-header { min-height: 64px; padding: 0 18px; }
  .menu-toggle { display: block; }
  .nav { position: absolute; top: 64px; right: 12px; left: 12px; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 10px; background: var(--site-surface); border: 1px solid var(--site-border); box-shadow: 0 12px 30px rgb(31 41 55 / 12%); }
  .nav.is-open { display: flex; }
  .nav a { padding: 10px; }
  .hero { width: calc(100% - 28px); min-height: 500px; margin-top: 20px; padding: 32px 24px; }
  .hero-copy { width: 100%; }
  .hero-copy h1 { font-size: 36px; }
  .section-grid, .content-section, .page-intro, .product-detail, .product-detail-body, .article-detail { width: calc(100% - 28px); }
  .product-grid { grid-template-columns: 1fr; }
  .pagination { flex-wrap: wrap; gap: 8px; }
  .pagination-control { flex: 1; }
  .page-intro { padding: 28px 20px; }
  .page-intro h1 { font-size: 30px; }
  .reference-news-list { padding: 18px; }
  .article-row { grid-template-columns: 1fr; gap: 14px; }
  .article-row img, .article-placeholder { width: 100%; height: auto; aspect-ratio: 16 / 9; }
  .article-image-frame { width: 100%; height: auto; aspect-ratio: 16 / 9; }
  .detail-copy { padding: 24px; }
  .detail-copy h1, .article-detail h1 { font-size: 28px; }
  .rich-content, .article-detail { padding: 26px 20px; }
  .product-tabs { overflow-x: auto; grid-template-columns: repeat(3, minmax(118px, 1fr)); padding: 0 8px; }
  .product-tabs button { min-height: 56px; padding: 10px 8px; font-size: 14px; white-space: nowrap; }
  .release-note-list { padding: 18px; }
  .release-note-item { grid-template-columns: 1fr; gap: 10px; padding: 14px; }
  .recommended-apps { padding: 18px; }
  .article-detail .rich-content { padding: 18px 0 0; }
  .contact-panel { align-items: flex-start; flex-direction: column; }
}