:root{font-family:system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;color:#20242c;background:#f6f7fa;font-synthesis:none;font-size:14px;--blue:#2966ce;--line:#e6e7ec}*{box-sizing:border-box}body{margin:0;padding:20px 12px;min-width:280px}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #a5c4f6;outline-offset:3px}[hidden]{display:none!important}.skip-link{position:absolute;top:-60px;left:16px;background:#fff;padding:8px;z-index:20}.skip-link:focus{top:10px}.site-shell{width:min(560px,100%);margin:auto;border:1px solid var(--line);border-radius:16px;background:#fff;overflow:hidden;box-shadow:0 8px 36px #18365305}.site-header{display:flex;align-items:center;justify-content:space-between;padding:21px 23px;gap:12px}.brand{display:flex;align-items:center;gap:11px}.brand-icon{width:40px;height:40px;display:grid;place-items:center;border-radius:9px;background:var(--blue);box-shadow:0 2px 5px #1c4fa017}.brand-icon svg{width:27px;height:27px;stroke:#fff;stroke-width:1.3;stroke-linecap:round;stroke-linejoin:round}.brand strong{display:block;font-size:22px;line-height:1.2;letter-spacing:-.6px}.brand small{display:block;font-size:12px;color:#737680;margin-top:4px}.site-address{font-size:11px;color:#8c9099;white-space:nowrap}.section-switch{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-block:1px solid var(--line)}.section-switch button{border:0;border-right:1px solid var(--line);padding:15px 3px;background:#fff;color:#353943;position:relative;font-size:14px}.section-switch button:last-child{border-right:0}.section-switch button[aria-selected="true"]{color:var(--blue);font-weight:650;background:#f5f8ff}.section-switch button[aria-selected="true"]:after{content:"";position:absolute;bottom:0;left:33%;right:33%;height:2px;background:var(--blue);border-radius:2px}main{padding:20px 22px 16px}.panel-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;min-height:63px}.panel-toolbar h1{font-size:23px;letter-spacing:-.6px;margin:0 0 6px}.panel-toolbar p{font-size:12px;color:#777c86;margin:0;line-height:1.5}.qr-shortcut{padding:8px 10px;background:#fff;box-shadow:0 3px 12px #2a3f6510;border:1px solid #edf0f5;border-radius:10px;display:flex;flex-direction:column;align-items:center;gap:4px;flex-shrink:0;color:#3b4452;font-size:11px}.qr-shortcut svg{height:25px;width:25px;stroke:var(--blue);stroke-width:2.2;stroke-linejoin:round;stroke-linecap:round}.video-stage{background:#f5f5fa;border:1px solid #e8e7ef;border-radius:12px;position:relative;height:clamp(180px,31dvh,250px);overflow:hidden}.video-count{position:absolute;right:13px;top:11px;font-size:10px;letter-spacing:.5px;color:#9b9faa;z-index:1}.video-placeholder{height:100%;padding:24px 16px;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center}.play-button{width:52px;height:52px;border:0;background:var(--blue);color:white;border-radius:50%;display:grid;place-items:center;box-shadow:0 4px 9px #2966ce16}.play-button svg{width:21px;height:21px;stroke:#fff;stroke-width:1.3;margin-left:3px;stroke-linejoin:round}.video-placeholder h2{font-size:17px;margin:16px 0 8px;line-height:1.4}.video-placeholder p{font-size:12px;color:#7b7c87;margin:0;line-height:1.6}.video-stage video{width:100%;height:100%;object-fit:contain;background:#111;display:block}.video-choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin-top:12px}.video-choices button{border:1px solid var(--line);background:#fff;border-radius:8px;min-height:42px;padding:8px 4px;color:#656a73;font-size:13px}.video-choices button[aria-pressed="true"]{border-color:#6c91c6;background:#edf4ff;color:#315f9e;font-weight:650}.feature-details{margin-top:14px;border-top:1px solid #eef0f3}.feature-details summary{cursor:pointer;display:flex;align-items:center;justify-content:space-between;padding:12px 0 2px;font-size:12px;color:#838995;list-style:none}.feature-details summary::-webkit-details-marker,.price-card summary::-webkit-details-marker{display:none}.feature-details summary span{font-size:17px;line-height:1}.feature-details[open] summary span{transform:rotate(45deg)}.feature-list{padding:3px 0 0}.feature-list p{font-size:12px;line-height:1.8;color:#7b818d;margin:8px 0}.feature-list strong{color:#424b59;margin-right:8px;font-weight:600}.site-footer{border-top:1px solid #eef0f4;padding:13px 12px;text-align:center;color:#989eaa;font-size:10px;line-height:1.6}.site-footer>span:last-child{margin-left:8px}.price-list{display:grid;gap:10px}.price-card{border:1px solid var(--line);border-radius:10px;background:#fff;overflow:hidden}.price-card summary{cursor:pointer;list-style:none;display:flex;align-items:center;gap:10px;padding:14px 15px}.price-card summary>span:first-child{flex:1}.price-card strong{display:block;font-size:15px}.price-card small{display:block;font-size:11px;color:#9299a6;margin-top:4px}.price-card b{color:var(--blue);font-size:21px;letter-spacing:-.6px;white-space:nowrap}.price-card b.price-range{font-size:17px}.chevron{color:#9ba1af}.price-card[open] .chevron{transform:rotate(180deg)}.price-body{border-top:1px solid #edf0f5;padding:11px 15px 14px;background:#f9fbff}.price-body ul{padding-left:18px;margin:0 0 12px;color:#697281;font-size:12px;line-height:2}.price-body a{color:var(--blue);font-weight:600;font-size:12px}.pricing-note{font-size:11px;line-height:1.8;color:#9299a6;margin:14px 1px 0}.contact-panel{text-align:center;padding:3px 0 12px}.qr-frame{width:min(214px,100%);height:214px;padding:13px;margin:0 auto;border:1px solid #e5eaf2;border-radius:13px;background:#fff;display:grid;place-items:center}.qr-frame img{width:100%;height:100%;object-fit:contain}.qr-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:10px;background:#f7f9fd;border:1px dashed #cedaee;border-radius:7px}.qr-placeholder svg{width:53px;height:53px;stroke:#9ab7e3;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.qr-placeholder strong{font-size:13px;color:#62718b}.qr-placeholder small{font-size:11px;color:#9ba8bb}.contact-panel h2{font-size:16px;margin:18px 0 8px}.contact-panel>p,.qr-dialog>p{font-size:12px;color:#848b98;line-height:1.7;margin:0}.contact-hints{display:flex;justify-content:center;gap:8px;margin-top:17px}.contact-hints span{background:#f4f7fc;color:#74839a;font-size:11px;border-radius:5px;padding:6px 10px}.qr-dialog{width:min(330px,calc(100% - 32px));border:1px solid #e5eaf2;border-radius:16px;padding:20px;background:#fff;color:#20242c;box-shadow:0 12px 60px #12234730;text-align:center}.qr-dialog::backdrop{background:#16243b60}.dialog-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.dialog-head h2{font-size:17px;margin:0}.dialog-head button{font-size:25px;line-height:1;border:0;border-radius:7px;width:30px;height:30px;background:#f4f6fa;color:#7e889a}.qr-dialog>p{margin-top:15px}
@media(max-width:440px){body{padding:10px}.site-header{padding:17px 18px}.brand-icon{width:37px;height:37px}.brand strong{font-size:20px}main{padding:17px 17px 13px}.panel-toolbar{margin-bottom:13px;min-height:62px}.panel-toolbar h1{font-size:21px}.video-stage{height:clamp(164px,29dvh,226px)}.site-footer{padding:11px 8px}.video-choices{gap:8px}.site-address{font-size:10px}}
@media(max-height:650px) and (max-width:440px){body{padding:6px}.site-header{padding:13px 17px}.section-switch button{padding:12px 3px}main{padding-top:12px}.panel-toolbar{margin-bottom:10px;min-height:57px}.video-stage{height:164px}.video-choices button{min-height:38px}.feature-details{margin-top:10px}.site-footer{padding:9px 6px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important}}
@media(max-height:650px) and (max-width:440px){.price-card summary{padding:10px 12px;gap:8px}.price-card small{font-size:10px;margin-top:3px}.price-card strong{font-size:14px}.price-card b{font-size:19px}.price-card b.price-range{font-size:15px}.price-list{gap:8px}.pricing-note{margin-top:10px;font-size:10px;line-height:1.7}.contact-panel .qr-frame{width:188px;height:188px}.contact-panel h2{margin-top:14px}.contact-hints{margin-top:12px}}