.brainbox-page{color:#1b303d;background:#fff;--bb-space:96px}.bb-wrap{width:88%;max-width:1240px;margin-inline:auto}.bb-space{padding-block:var(--bb-space)}.brainbox-page h1{font-size:clamp(44px,4.5vw,68px);line-height:1.2;letter-spacing:-.04em}.brainbox-page h2{font-size:clamp(32px,3.1vw,46px);line-height:1.35;letter-spacing:-.025em}.brainbox-page h2 span{display:block;text-wrap:balance}.brainbox-page h3{font-size:24px;line-height:1.5}.brainbox-page p{line-height:1.85;text-wrap:pretty}.brainbox-page .bb-eyebrow{font-size:13px;letter-spacing:.09em;color:#357c83;margin-bottom:22px}.brainbox-page .bb-lead{font-size:18px;line-height:1.9;color:#62747d;margin-top:26px;max-width:650px}.bb-brand{display:flex;align-items:center;gap:15px;font-size:22px;font-weight:600}.bb-brand img{border-radius:13px;box-shadow:0 4px 14px #0002}.bb-brand small{display:block;font-size:10px;letter-spacing:.15em;margin-top:5px;font-weight:400}.bb-hero{background:#031c20;color:#fff;position:relative;min-height:690px;overflow:hidden;display:flex;align-items:center}.bb-hero figure{position:absolute;inset:0;margin:0}.bb-hero figure:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,#031c20 0%,#031c20ed 28%,#031c2060 55%,transparent 75%)}.bb-hero figure img{height:100%;width:100%;object-fit:cover;object-position:70% center}.bb-hero-copy{position:relative;z-index:1;padding-block:60px}.bb-hero .bb-brand{margin-bottom:54px}.bb-hero .bb-eyebrow{color:#8bc3c9}.bb-hero .bb-lead{color:#c1d0d1;max-width:440px}.bb-explore{display:inline-flex;align-items:center;gap:44px;padding-block:14px;border-bottom:1px solid #ffffff55;margin-top:24px;font-size:13px}.bb-hero figcaption{position:absolute;bottom:16px;right:20px;color:#bdd0ce;font-size:10px;z-index:1}.bb-flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));list-style:none;padding:0;gap:30px;margin:48px 0 0}.bb-flow li{border-top:1px solid #cadbdf;padding-top:22px}.bb-flow li>span{color:#54858c;font-size:12px}.bb-flow h3{margin-top:20px}.bb-flow p{font-size:15px;color:#677b84;margin-top:12px}.brainbox-page .bb-note{font-size:12px;color:#7b9097;margin-top:24px}.bb-split{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:70px}.bb-keywords{display:flex;gap:12px 24px;flex-wrap:wrap;margin-top:30px;font-size:13px;color:#3b737a}.bb-connect{background:#0c2634;color:#eff6f7}.bb-connect .bb-eyebrow{color:#8ac7cf}.bb-connect .bb-lead{color:#b7cbd2;margin-top:0}.bb-connect .bb-keywords{color:#9dcbd2}.bb-hardware{margin:55px 0 0}.bb-hardware img{width:100%;height:auto;display:block;border-radius:12px}.bb-hardware figcaption{text-align:right;font-size:10px;color:#9ab2bd;margin-top:10px}.bb-ending{text-align:center;background:#edf3f5}.bb-ending .bb-brand{justify-content:center;margin-bottom:30px}.bb-ending .bb-lead{margin-inline:auto}.bb-ending .button{margin-top:32px;background:#244f60}.brainbox-card-art{width:100%;height:100%;overflow:hidden;border-radius:10px}.collection-image .brainbox-card-art img{width:100%;height:100%;object-fit:cover}.collection-card.brainbox-card{grid-column:auto}.collection-card.brainbox-card .collection-image{aspect-ratio:1.62}.collection-card.brainbox-card .card-screen{inset:94px 40px 28px}
@media(max-width:1000px){.brainbox-page{--bb-space:80px}.bb-split{gap:40px}.bb-flow{grid-template-columns:repeat(2,minmax(0,1fr));gap:35px}.bb-hero figure img{object-position:62% center}}
@media(max-width:760px){.brainbox-page{--bb-space:60px}.bb-wrap{width:calc(100% - 40px)}.brainbox-page h1{font-size:clamp(36px,10vw,44px)}.brainbox-page h2{font-size:clamp(28px,7.5vw,34px)}.brainbox-page h3{font-size:22px}.brainbox-page .bb-lead{font-size:16px;margin-top:22px}.brainbox-page .bb-lead br{display:none}.brainbox-page .bb-eyebrow{font-size:11px;margin-bottom:18px}.bb-brand{font-size:20px;gap:12px}.bb-brand img{width:46px;height:46px}.bb-hero{display:block;min-height:0}.bb-hero-copy{padding-block:36px 0}.bb-hero .bb-brand{margin-bottom:36px}.bb-hero figure{position:relative;height:auto;aspect-ratio:16/10;margin-top:12px}.bb-hero figure img{object-fit:cover;object-position:center}.bb-hero figure:after{background:linear-gradient(180deg,#031c20,transparent 40%)}.bb-hero figcaption{font-size:9px}.bb-explore{margin-top:16px}.bb-flow{grid-template-columns:1fr;gap:22px;margin-top:32px}.bb-flow li{position:relative;padding:22px 0 0 40px}.bb-flow li>span{position:absolute;left:0;top:28px}.bb-flow h3{margin-top:0}.bb-flow p{margin-top:8px}.bb-split{grid-template-columns:1fr;gap:28px}.bb-keywords{gap:10px 20px;margin-top:24px}.bb-hardware{margin-top:32px}.bb-hardware img{border-radius:6px}.bb-connect .bb-lead{margin-top:0}.collection-card.brainbox-card .collection-image{aspect-ratio:1.35}.collection-card.brainbox-card .card-screen{inset:78px 22px 23px}}

/* 案例整合：统一层级，不单独突出彩灯体验。 */
.bb-cases{background:#edf3f1}.bb-case-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:48px 64px;margin-top:48px}.bb-case-grid section{border-top:1px solid #bccfd0;padding-top:22px}.bb-case-top{display:flex;justify-content:space-between;color:#537e84;font-size:12px;letter-spacing:.05em}.bb-case-grid h3{margin-top:24px}.bb-case-grid p{margin-top:12px;color:#62747d;font-size:16px;max-width:460px}
@media(max-width:760px){.bb-case-grid{grid-template-columns:1fr;gap:28px;margin-top:32px}.bb-case-grid h3{margin-top:18px}.bb-case-grid p{font-size:15px}.bb-hardware img{aspect-ratio:4/3;object-fit:cover;object-position:center}}

.bb-ecosystems{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:36px;margin-top:44px}.bb-ecosystems section{border-top:1px solid #ffffff30;padding-top:24px}.bb-ecosystems span{font-size:12px;color:#9dcbd2}.bb-ecosystems h3{margin-top:16px;font-size:30px}.bb-ecosystems p{font-size:15px;color:#b7cbd2;margin-top:12px}.bb-sdk-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:38px 60px;margin-top:42px}.bb-sdk-grid section{border-top:1px solid #d4dfe2;padding-top:24px}.bb-sdk-grid p{font-size:16px;color:#62747d;margin-top:12px;max-width:480px}@media(max-width:760px){.bb-ecosystems,.bb-sdk-grid{grid-template-columns:1fr;gap:28px;margin-top:32px}.bb-sdk-grid p{font-size:15px}}