.first-light-container{background:#f4f4f4}.fl-detail{max-width:1440px;margin:0 auto;padding:24px 40px 56px;background:#f4f4f4}.fl-detail .banner{display:block;margin-bottom:20px;height:90px;width:100%}.fl-detail .banner img.banner{cursor:pointer;display:block;height:90px;width:100%;-o-object-fit:cover;object-fit:cover}.fl-breadcrumb{font-size:13px;color:#6b7280;margin-bottom:20px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}.fl-breadcrumb__icon{width:16px;height:16px;color:#2b6cff}.fl-breadcrumb__link{color:#6b7280;text-decoration:none;transition:color .2s}.fl-breadcrumb__link:hover{color:#2b6cff}.fl-breadcrumb__split{color:#e5e7eb}.fl-breadcrumb__cur{color:#1f2937}.fl-detail-head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:16px}.fl-detail-head-l{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.fl-status-text{font-size:13px;font-weight:500;color:#10b981}.fl-detail-title{font-size:20px;font-weight:600;color:#2b6cff}.fl-phone-btn{padding:8px 16px;border-radius:999px;border:1px solid #e5e7eb;background:#fff;font-size:13px;color:#374151;display:inline-flex;align-items:center;gap:8px;cursor:pointer;position:relative;transition:border-color .2s,color .2s}.fl-phone-btn:hover{border-color:#7c3aed;color:#7c3aed}.fl-phone-ic{width:16px;height:16px}.fl-phone-btn:hover .qr-code-box{display:inline-block!important}.fl-phone-btn .qr-code-box{position:absolute;top:44px;right:0;padding:10px;border:1px solid #ececec;background:#fff;box-shadow:0 4px 16px #0000001f;border-radius:8px;z-index:5;display:flex;align-items:center;justify-content:center}.fl-phone-btn .qr-code-box .view-arrow-t{display:block;height:14px;position:absolute;top:-13px;left:0;right:0}.fl-phone-btn .qr-code-box .view-arrow-t:before,.fl-phone-btn .qr-code-box .view-arrow-t:after{content:"";position:absolute;left:50%;transform:translate(-50%)}.fl-phone-btn .qr-code-box .view-arrow-t:before{top:6px;display:inline-block;width:0;height:0;font-size:0;border-bottom:8px solid #ececec;border-left:8px solid transparent;border-right:8px solid transparent}.fl-phone-btn .qr-code-box .view-arrow-t:after{top:7px;display:inline-block;width:0;height:0;font-size:0;border-bottom:7px solid #fff;border-left:7px solid transparent;border-right:7px solid transparent}.fl-phone-btn .qr-code{width:102px;-o-object-fit:contain;object-fit:contain}.video-stage{position:relative;width:100%;aspect-ratio:16 / 9;background:#000;border-radius:6px;overflow:hidden;display:flex;align-items:center;justify-content:center}.video-inner{position:absolute;left:0;right:0;top:0;bottom:0;background:radial-gradient(ellipse at center,#2563eb,#1d4ed8 55%,#1e3a8a);overflow:hidden}.video-inner:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background-image:linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);background-size:48px 48px;transform:perspective(800px) rotateX(55deg) scale(1.6);transform-origin:center 70%;-webkit-mask-image:radial-gradient(ellipse at center 60%,#000 30%,transparent 75%);mask-image:radial-gradient(ellipse at center 60%,#000 30%,transparent 75%)}.video-inner>.video-js{width:100%;height:100%;-o-object-fit:cover;object-fit:cover}.play-btn-big{position:relative;z-index:2;width:88px;height:88px;border-radius:50%;background:#0000008c;display:flex;align-items:center;justify-content:center;color:#fff;transition:transform .25s,background .25s;cursor:pointer;border:none}.play-btn-big:hover{transform:scale(1.08);background:#2b6cff}.fl-play-ic{width:32px;height:32px}.preview-badge{position:absolute;top:14px;right:14px;z-index:15;background:#0000008c;color:#fff;font-size:12px;padding:5px 12px;border-radius:20px;display:inline-flex;align-items:center;gap:6px;letter-spacing:.5px}.preview-badge .dot{width:6px;height:6px;border-radius:50%;background:#ef4444;animation:pulse 1.4s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.35}}.watch-gate{position:absolute;top:0;right:0;bottom:0;left:0;z-index:20;background:#0f141edb;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:#fff;padding:24px}.watch-gate .ic{width:56px;height:56px;border-radius:50%;background:#ffffff1f;display:flex;align-items:center;justify-content:center;margin-bottom:16px}.fl-gate-ic{width:26px;height:26px}.watch-gate h4{font-size:17px;font-weight:600;margin-bottom:6px}.watch-gate p{font-size:13px;color:#ffffffb3;max-width:360px;line-height:1.6;margin-bottom:20px}.watch-gate .text-btn{color:#60a5fa;cursor:pointer;text-decoration:none}.fl-gate-btn{padding:10px 22px;border-radius:999px;background:#2b6cff;color:#fff;font-size:13px;font-weight:600;display:inline-flex;align-items:center;gap:8px;border:none;cursor:pointer;transition:filter .2s}.fl-gate-btn:hover{filter:brightness(1.06)}.fl-gate-btn-ic{width:15px;height:15px}.fl-info-grid{margin-top:24px;background:#fff;border-radius:8px;padding:24px 32px;box-shadow:0 1px 2px #1018280a;display:grid;grid-template-columns:1fr;gap:24px;align-items:start}.course-logo{width:140px;height:140px;border-radius:6px;background:linear-gradient(135deg,#2b6cff,#1e40af);display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;flex-shrink:0;position:relative;overflow:hidden}.course-logo:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle at 30% 25%,rgba(255,255,255,.18),transparent 50%)}.course-logo-icon{width:54px;height:54px;border-radius:50%;background:#ffffff26;display:flex;align-items:center;justify-content:center;margin-bottom:10px;position:relative;z-index:1}.fl-logo-ic{width:28px;height:28px}.course-logo-name{font-size:14px;font-weight:600;letter-spacing:2px;position:relative;z-index:1}.fl-info-title{font-size:18px;font-weight:700;margin-bottom:8px}.fl-info-brief{font-size:16px;color:#6b7280;line-height:1.85;white-space:pre-wrap}.fl-benefit-tit{color:#2b6cff;font-weight:600;font-size:15px;margin-bottom:12px}.benefit-box{background:#f8fafc;border-left:3px solid #2b6cff;border-radius:4px;padding:18px 20px}.fl-benefit-text{font-size:13.5px;line-height:1.8;color:#1f2937}.fl-benefit-text .fl-benefit-line{position:relative;padding-left:16px;margin-bottom:8px}.fl-benefit-text .fl-benefit-line:last-child{margin-bottom:0}.fl-benefit-text .fl-benefit-line:before{content:"";position:absolute;left:3px;top:.72em;width:5px;height:5px;border-radius:50%;background:#2b6cff}.fl-block{margin-top:24px;background:#fff;border-radius:8px;padding:20px 32px;box-shadow:0 1px 2px #1018280a}.fl-block-tit{font-size:16px;font-weight:700;color:#1f2937;position:relative;padding-left:12px;margin-bottom:16px}.fl-block-tit:before{content:"";position:absolute;left:0;top:3px;width:3px;height:16px;background:#2b6cff;border-radius:2px}.fl-authors{display:flex;flex-direction:column;gap:16px}.fl-author{display:flex;align-items:center;gap:16px;padding:16px;background:#f8fafc;border-left:3px solid #2b6cff;border-radius:4px}.fl-author-avatar{width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,#2b6cff,#1e40af);color:#fff;font-size:22px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0;border:2px solid #2b6cff}.fl-author-info{display:flex;flex-direction:column;line-height:1.5}.fl-author-name{font-size:15px;font-weight:600;color:#1f2937}.fl-author-title{font-size:12.5px;color:#2b6cff;margin-top:2px}.fl-author-brief{font-size:13px;color:#6b7280;margin-top:6px;line-height:1.6}.fl-desc{font-size:14px;color:#1f2937;line-height:1.8}.fl-block-tags{display:flex;align-items:center;flex-wrap:wrap;gap:12px}.fl-tags-label{font-size:13px;color:#6b7280;flex-shrink:0}.tag-chip{display:inline-flex;align-items:center;padding:6px 16px;border:1px solid #2b6cff;color:#2b6cff;border-radius:20px;font-size:13px;background:#fff;transition:all .2s;cursor:pointer;text-decoration:none}.tag-chip:hover{background:#2b6cff;color:#fff}@media(min-width:1024px){.fl-info-grid{grid-template-columns:60% 1fr;gap:32px}}@media(max-width:768px){.fl-detail{padding:16px}.fl-info-grid,.fl-block{padding:18px}}
