:root{--bg:#ffffff;--bg-soft:#f6f9ff;--bg-tint:#eef4ff;--surface:#ffffff;--surface-soft:#f8fbff;--text:#152033;--muted:#61708a;--line:#dce5f3;--line-strong:#c8d6ec;--blue:#2776ff;--blue-deep:#0f55d7;--cyan:#45b9ff;--teal:#2dbd96;--navy:#1b2333;--warning-bg:#fff4e4;--warning-line:#efdcbc;--shadow-soft:0 16px 36px rgba(31,62,122,0.08);--shadow-strong:0 28px 70px rgba(31,62,122,0.12);--radius-xl:2rem;--radius-lg:1.5rem;--radius-md:1.125rem;--max-width:1100px;--font-body:"Segoe UI Variable Text","PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Microsoft YaHei",sans-serif;--font-display:"Segoe UI Variable Display","PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Microsoft 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p{margin-top:0.36rem;}.video-grid{grid-template-columns:repeat(2,minmax(0,1fr));}.video-card{overflow:hidden;padding:0;}.video-card__head{display:flex;align-items:flex-start;justify-content:space-between;gap:0.75rem;padding:1rem 1rem 0.4rem;}.video-card__head a{flex:none;color:var(--blue-deep);font-size:0.8rem;font-weight:800;white-space:nowrap;}.video-card__desc{padding:0 1rem 0.85rem;}.video-card__frame{position:relative;aspect-ratio:16 / 9;border-top:1px solid var(--line);background:linear-gradient(180deg,#eaf2ff 0%,#f8fbff 100%);}.video-card__frame iframe{width:100%;height:100%;}.guide-article{display:grid;gap:0.9rem;}.guide-block__kicker{margin:0 0 0.22rem;}.guide-block p{margin-top:0.46rem;}.guide-checklist{grid-template-columns:repeat(2,minmax(0,1fr));}.guide-checklist article{padding:1rem 1.05rem;}.guide-checklist ul{margin:0.55rem 0 0;padding-left:1.1rem;color:var(--muted);}.guide-checklist li + li{margin-top:0.3rem;}.faq-grid{grid-template-columns:repeat(2,minmax(0,1fr));}.faq-card{box-shadow:none;}.faq-card summary{cursor:pointer;font-weight:800;list-style:none;}.faq-card summary::-webkit-details-marker{display:none;}.faq-card p{margin-top:0.6rem;}.faq-card[open]{box-shadow:var(--shadow-soft);}.cta-band{padding:0 0 3rem;}.cta-band__inner{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:1rem;align-items:center;padding:1.45rem 1.55rem;border-radius:2rem;background:linear-gradient(135deg,#103b94 0%,#2776ff 56%,#25b8ca 100%);color:#ffffff;box-shadow:0 26px 54px rgba(28,92,204,0.24);}.cta-band__inner h2{margin-top:0.22rem;font-size:clamp(1.7rem,3vw,2.25rem);line-height:1.02;color:#ffffff;}.cta-band__eyebrow,.cta-band__inner p{color:rgba(242,247,255,0.88);}.site-footer{padding:1.6rem 0 2rem;background:#101827;}.site-footer__inner{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:1.2rem;align-items:start;}.site-footer__copy strong{display:block;margin-bottom:0.35rem;color:#ffffff;font-size:1rem;font-weight:800;}.site-footer__copy p,.site-footer__label,.site-footer__links{color:rgba(219,229,244,0.76);}.site-footer__links{display:grid;gap:0.35rem;justify-items:end;font-size:0.92rem;}.site-footer__links a:hover,.site-footer__links a:focus-visible,.video-card__head a:hover,.video-card__head a:focus-visible{color:#ffffff;}@media (max-width:1080px){.hero__layout,.content-hub__layout,.cta-band__inner,.site-footer__inner{grid-template-columns:1fr;}.switcher{position:static;}.switcher__tabs{grid-template-columns:repeat(2,minmax(0,1fr));}.feature-grid,.spec-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}@media (max-width:760px){.site-header__inner{grid-template-columns:1fr;justify-items:start;padding:0.8rem 0;}.site-nav{justify-content:flex-start;}.hero-panel,.panel,.switcher__download-card{padding:1rem;}.hero__layout,.feature-grid,.note-grid,.video-grid,.guide-checklist,.faq-grid,.hero-download__actions,.download-meta,.showcase__grid,.switcher__tabs{grid-template-columns:1fr;}.showcase__glass{position:static;width:auto;margin-top:1rem;}.video-card__head{flex-direction:column;}.button,.header-download,.hero-shortcuts a{width:100%;}}@media (max-width:560px){.container{width:min(100% - 1rem,var(--max-width));}.hero{padding-top:1rem;}.hero-panel{border-radius:1.5rem;}.hero-showcase,.hero-download,.panel,.switcher__download-card,.cta-band__inner{border-radius:1.25rem;}.hero__title{font-size:clamp(2rem,12vw,2.6rem);}.spec-grid{grid-template-columns:1fr;}.site-nav a{padding-inline:0.7rem;}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto;}*,*::before,*::after{animation-duration:0.01ms !important;animation-iteration-count:1 !important;transition-duration:0.01ms !important;scroll-behavior:auto !important;}}