.product-video-section{padding-top:88px;padding-bottom:88px;background:#fff}
.product-video-section .section-head{margin-bottom:32px}.product-video-section h2{font-size:38px;line-height:1.3}
.product-video-section h2 .gradient{background:linear-gradient(105deg,#287fca,#1455bb);background-clip:text;-webkit-background-clip:text;color:transparent}
.product-video-stage{max-width:1136px;margin:auto;border:1px solid var(--dark);border-radius:24px;background:var(--dark);overflow:hidden}
.product-video-cover{position:relative;display:block;width:100%;aspect-ratio:16/9;background:var(--dark);padding:22px;border:0;cursor:pointer;color:#fff}
.product-video-cover>img{display:block;width:100%;height:100%;object-fit:contain;transition:transform .5s ease}
.product-video-cover::after{content:'';position:absolute;inset:0;background:linear-gradient(0deg,#10192bf2,transparent 54%);pointer-events:none}
.product-video-play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:2;display:grid;place-items:center;width:68px;height:68px;border-radius:50%;background:#fff;box-shadow:0 8px 32px #10192b38;color:var(--blue);transition:box-shadow .2s}
.product-video-play .ri{width:28px;height:28px;margin-left:3px;fill:currentColor}
.product-video-cover:hover>img{transform:scale(1.02)}.product-video-cover:hover .product-video-play{box-shadow:0 12px 42px #1f62bd60}
.product-video-cover:focus-visible{outline:3px solid #86b9ff;outline-offset:-4px}
.product-video-cover.is-pending{cursor:default}.product-video-pending{position:absolute;z-index:2;left:50%;top:50%;transform:translate(-50%,-50%);padding:12px 24px;border:1px solid var(--line);border-radius:12px;background:#fffffff0;color:var(--ink-3);font-size:16px;white-space:nowrap}
.product-video-player{position:relative;background:#fff;aspect-ratio:16/9}.product-video-player iframe{width:100%;height:100%;border:0;display:block}
.product-video-toolbar{display:flex;justify-content:center;align-items:center;gap:18px;background:#f7f9fc;border-top:1px solid #e4eaf3;padding:12px;color:#526c8f;font-size:14px}
.product-video-toolbar button{padding:8px 16px;border-radius:10px;background:#e9f2ff;color:#1768bf;min-height:40px}
@media(max-width:767px){.product-video-section{padding-block:56px}.product-video-section h2{font-size:28px}.product-video-stage{border-radius:18px}.product-video-cover{padding:12px}.product-video-play{width:52px;height:52px}.product-video-play .ri{width:22px;height:22px}.product-video-pending{font-size:13px;padding:7px 13px}.product-video-toolbar{gap:12px;font-size:13px;padding:10px}}
@media(prefers-reduced-motion:reduce){.product-video-cover>img{transition:none}.product-video-cover:hover>img{transform:none}}

.product-video-library{display:grid;grid-template-columns:minmax(0,1fr);gap:24px;max-width:1136px;margin-inline:auto}
.product-video-main{position:relative;min-width:0}
.product-video-library .product-video-stage{max-width:none;margin:0}
.product-video-directory{min-width:0}
.product-video-directory.has-carousel{display:grid;grid-template-columns:40px minmax(0,1fr) 40px;align-items:center;gap:12px}
.product-video-list{display:grid;grid-template-columns:none;grid-auto-flow:column;grid-auto-columns:calc((100% - (var(--product-video-columns,4) - 1)*16px)/var(--product-video-columns,4));gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none}
.product-video-list::-webkit-scrollbar{display:none}
.product-video-nav{display:grid;place-items:center;align-self:center;width:40px;height:40px;padding:0;border:1px solid var(--line);border-radius:50%;background:#fff;color:var(--blue);line-height:0;cursor:pointer}
.product-video-nav svg{display:block;width:26px;height:26px;flex:none}
.product-video-nav:disabled{opacity:.35;cursor:default}
.product-video-nav:focus-visible{outline:2px solid #4285dc;outline-offset:2px}
.product-video-item{display:flex;align-items:center;gap:12px;width:100%;min-height:90px;padding:14px;min-width:0;border:1px solid var(--line);border-radius:12px;background:#ffffff60;text-align:left;color:var(--ink-2);transition:background .18s,border-color .18s;scroll-snap-align:start}
.product-video-item[aria-pressed=true]{border-color:var(--violet);background:#fff;box-shadow:inset 0 0 0 1px var(--violet)}
.product-video-item:hover{background:#fff}
.product-video-item:focus-visible{outline:2px solid #4285dc;outline-offset:2px}
.product-video-thumb{position:relative;display:block;flex:0 0 86px;height:56px;overflow:hidden;border-radius:6px;background:var(--dark)}
.product-video-thumb img{display:block;width:100%;height:100%;object-fit:cover}
.product-video-thumb>.ri{position:absolute;right:5px;bottom:5px;width:18px;height:18px;padding:3px;border-radius:50%;background:#ffffffed;color:#2876d6}
.product-video-item-copy{display:block;min-width:0}
.product-video-item-copy strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px;font-weight:500;line-height:1.55}
.product-video-item-copy small{display:block;margin-top:5px;font-size:11px;line-height:1.5;color:var(--ink-3)}
.product-video-item[aria-pressed=true] .product-video-item-copy small{color:var(--blue)}
.product-video-meta{position:absolute;z-index:2;inset:auto 32px 26px;display:flex;align-items:flex-end;justify-content:space-between;gap:20px;color:#fff;pointer-events:none}
.product-video-meta h3{font-size:24px;line-height:1.5;font-weight:600}
.product-video-meta h3::before{content:'产品演示';display:block;margin-bottom:7px;font-size:12px;font-weight:400;color:var(--on-dark-2)}
.product-video-count{flex:none;font-size:12px;letter-spacing:.08em;color:var(--on-dark-2)}
.product-video-main:has(.product-video-player) .product-video-meta{display:none}
.product-video-player>video{display:block;width:100%;height:100%;background:#111827}
.product-video-error{margin:12px 0 0;color:#b54747;font-size:14px;line-height:1.6}
.product-video-error[hidden]{display:none}
.product-video-toolbar button:disabled{cursor:default;opacity:.6}
@media(max-width:1000px){
 .product-video-list{grid-auto-columns:calc((100% - 16px)/2)}
}
@media(max-width:767px){
 .product-video-library{gap:18px}
 .product-video-directory.has-carousel{grid-template-columns:36px minmax(0,1fr) 36px;gap:6px}
 .product-video-nav{width:36px;height:36px}
 .product-video-nav svg{width:24px;height:24px}
 .product-video-list{grid-auto-columns:100%;gap:12px;scroll-snap-type:x mandatory}
 .product-video-item{padding:12px;scroll-snap-align:start}
 .product-video-meta{inset:auto 18px 15px;gap:12px}
 .product-video-meta h3{font-size:16px;line-height:1.4}
 .product-video-meta h3::before{font-size:10px;margin-bottom:4px}
 .product-video-count{font-size:10px}
}
@media(prefers-reduced-motion:reduce){.product-video-item{transition:none}}