.scene-story{background:#f7f9fc;padding:32px max(22px,calc((100% - 1160px)/2)) 48px;color:#203755}
.scene-chapter{padding:20px 0;box-sizing:border-box}
.scene-chapter+.scene-chapter{margin-top:24px}
.scene-chapter-heading{text-align:center;margin-bottom:28px}
.scene-eyebrow{display:block;font-size:14px;line-height:1.6;font-weight:500;letter-spacing:0;color:#526d88;margin-bottom:14px}
.scene-chapter-heading h2{font-size:clamp(26px,3vw,36px);line-height:1.4;margin:0;font-weight:600}
.scene-chapter-heading p{font-size:15px;line-height:1.8;color:#637386;max-width:760px;margin:10px auto 0;text-wrap:pretty}
.scene-editorial{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:stretch}
.scene-feature{background:#eaf2fa;border-radius:16px;padding:26px 28px;display:flex;flex-direction:column;min-width:0}
.scene-feature>header{font-size:14px;font-weight:600;color:#2667b4}
.scene-feature h3{font-size:clamp(22px,2vw,27px);line-height:1.5;font-weight:600;margin:10px 0 16px;max-width:18em}
.scene-evidence{flex:1}
.scene-evidence dl{margin:0;display:grid;gap:12px}
.scene-evidence dt{font-size:13px;color:#637386;margin-bottom:6px}
.scene-evidence dd{font-size:17px;line-height:1.8;margin:0;color:#294b6b}
.scene-output{font-size:14px;line-height:1.8;color:#245887;border-top:1px solid #ccdbeb;padding-top:12px;margin:16px 0 0}
.scene-summary-list{display:grid;grid-template-rows:repeat(3,1fr);min-width:0}
.scene-summary{padding:16px 0;display:flex;flex-direction:column;justify-content:center;min-width:0}
.scene-summary:first-child{padding-top:0}
.scene-summary:last-child{padding-bottom:0}
.scene-summary+.scene-summary{border-top:1px solid #dce5ef}
.scene-summary>header{display:flex;align-items:center;gap:9px;font-size:14px;font-weight:500;color:#2667b4}
.scene-icon{display:inline-flex;flex:none;width:22px;height:22px;align-items:center;justify-content:center}
.scene-icon svg{width:22px;height:22px;stroke:currentColor;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round;display:block}
.scene-icon img{width:22px;height:22px;object-fit:contain;display:block}
.scene-summary h3{font-size:19px;line-height:1.5;font-weight:600;margin:7px 0 5px}
.scene-summary p{font-size:14px;line-height:1.8;color:#637386;margin:0;text-wrap:pretty}
@media(max-width:1000px){.scene-editorial{gap:28px}.scene-feature{padding:24px}.scene-summary h3{font-size:18px}}
@media(max-width:760px){.scene-story{padding-top:16px;padding-bottom:24px}.scene-chapter+.scene-chapter{margin-top:16px}.scene-chapter-heading{margin-bottom:24px}.scene-editorial{grid-template-columns:1fr;gap:24px}.scene-feature{padding:22px;border-radius:12px}.scene-feature h3{font-size:23px;margin:12px 0 18px}.scene-evidence dd{font-size:16px}.scene-summary-list{grid-template-rows:auto}.scene-summary{padding:20px 0}.scene-summary h3{font-size:19px}.scene-summary p{font-size:15px}}
.scene-chapter-heading strong{font-weight:600;color:#345879}
.scene-video{display:flex;align-items:center;gap:16px;position:relative;margin-top:16px;border-radius:10px;overflow:hidden;background:#ffffffb3;color:#245887;text-decoration:none;max-width:100%}
.scene-video :is(img,.scene-preview){display:block;width:40%;max-width:190px;height:auto;aspect-ratio:16/9;object-fit:contain;flex:none}
.scene-video-caption{display:grid;grid-template-columns:30px 1fr;align-items:center;gap:4px 10px;padding:12px 12px 12px 0;font-size:14px;color:#245887}
.scene-video-play{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:#fff;color:#2664b5;font-size:12px;flex:none}
.scene-video-duration{grid-column:2;color:#637386;font-size:12px;font-variant-numeric:tabular-nums}
.scene-video:focus-visible{outline:3px solid #2664b5;outline-offset:4px}
.scene-video-dialog{padding:0;border:0;border-radius:16px;width:min(1000px,92vw);max-height:90vh;background:#13243d;color:#fff;box-shadow:0 24px 80px #0005}
.scene-video-dialog::backdrop{background:rgba(10,23,40,.75)}
.scene-video-dialog>header{display:flex;align-items:center;justify-content:space-between;padding:12px 18px;gap:16px}
.scene-video-dialog h2{font-size:18px;margin:0;color:#fff}
.scene-video-dialog button{width:40px;height:40px;border:0;border-radius:50%;background:#ffffff18;color:#fff;font-size:28px;cursor:pointer}
.scene-video-dialog button:focus-visible{outline:2px solid #fff}
.scene-video-dialog video{display:block;width:100%;max-height:calc(90vh - 80px);background:#000}
.scene-video-error{padding:12px 18px}
/* Compact video invitations with a clear, separate play action. */
.scene-video{gap:18px;padding:9px;background:linear-gradient(110deg,#fff,#f6faff);border:1px solid #d6e3f1;border-radius:14px;box-shadow:0 3px 12px rgba(35,75,115,.04);transition:border-color .2s ease,box-shadow .2s ease}
.scene-video :is(img,.scene-preview){width:34%;max-width:166px;border-radius:8px}
.scene-video-caption{flex:1;position:relative;min-width:0;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:8px;padding:8px 50px 8px 0;font-size:16px;font-weight:600;line-height:1.5}
.scene-video-duration{font-weight:400;font-size:12px;color:#72849b;letter-spacing:.03em}
.scene-video-duration::before{content:'观看演示 · ';letter-spacing:0}
.scene-video-play{position:absolute;right:7px;top:50%;transform:translateY(-50%);width:38px;height:38px;background:#e8f1fc;color:#2664b5;box-shadow:inset 0 0 0 1px #d7e6f8}
@media(hover:hover){.scene-video:hover{border-color:#a8c5e7;box-shadow:0 5px 16px rgba(35,75,115,.09)}.scene-video:hover .scene-video-play{background:#2664b5;color:#fff}}
@media(max-width:600px){.scene-video{gap:12px;padding:7px}.scene-video :is(img,.scene-preview){width:34%}.scene-video-caption{font-size:14px;padding-right:36px;gap:5px}.scene-video-play{right:0;width:30px;height:30px}.scene-video-duration{font-size:11px}}
@media(prefers-reduced-motion:reduce){.scene-video{transition:none}}

@media(max-width:700px){.scene-eyebrow{font-size:13px;margin-bottom:12px}}