.book-edge{height:10px;background:var(--teal)}
.hero{padding:28px 0 18px}
.spread{display:grid;grid-template-columns:1fr 14px 1fr;align-items:stretch;border-radius:24px;overflow:hidden;border:1px solid var(--line)}
.gutter{background:var(--line)}
.page-l,.page-r{padding:28px 24px;position:relative}
.page-l{background:var(--left)}
.page-r{background:var(--right)}
.pg-no{position:absolute;bottom:12px;font-size:11px;color:var(--muted);font-family:-apple-system,"Microsoft YaHei",sans-serif}
.page-l .pg-no{left:18px}
.page-r .pg-no{right:18px}
.q-mark{font-size:42px;line-height:1;color:var(--amber)}
.hero h1{font-size:clamp(24px,3.6vw,38px);line-height:1.18;margin:10px 0}
.hero-desc{color:var(--muted);font-size:15px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}
.hero-tags span{padding:5px 12px;border-radius:999px;background:#fff;font-size:12px;font-weight:800;font-family:-apple-system,"Microsoft YaHei",sans-serif}
.hero-actions{display:flex;flex-wrap:wrap;gap:10px}
.hero-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:16px}
.metric{padding:12px;border-radius:16px;background:#fff;text-align:center}
.metric strong{display:block;font-size:20px;color:var(--teal)}
.metric span{font-size:11px;color:var(--muted);font-family:-apple-system,"Microsoft YaHei",sans-serif}
.page-r img{width:100%;height:220px;object-fit:cover;border-radius:18px}
.lang-bar{display:flex;gap:8px;padding:8px 0 10px;font-size:12px;font-weight:800;flex-wrap:wrap;font-family:-apple-system,"Microsoft YaHei",sans-serif}
.bubble-layer{padding:10px 0 0;display:grid;gap:6px}
.bubble{padding:8px 12px;font-size:12px;max-width:92%;border-radius:18px;font-family:-apple-system,"Microsoft YaHei",sans-serif}
.bubble-a{background:var(--left)}
.bubble-b{background:var(--soft);margin-left:auto;text-align:right}
.platform-strip{margin-top:-10px;position:relative;z-index:2}
.platform-panel{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;background:#fff;border-radius:999px;padding:8px;border:1px solid var(--line)}
.platform{padding:10px 4px;text-align:center;font-size:11px;font-weight:800;font-family:-apple-system,"Microsoft YaHei",sans-serif}
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.step-card{padding:20px;background:#fff;border-radius:22px;border:1px solid var(--line)}
.step-num{color:var(--teal);font-weight:900;font-size:12px;margin-bottom:6px}
.feature-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:18px;flex-wrap:wrap}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.feature-card{padding:16px;background:#fff;border-radius:20px;border:1px solid var(--line)}
.feature-card .icon{width:36px;height:36px;border-radius:50%;background:var(--soft);display:grid;place-items:center;font-size:12px;font-weight:900;color:var(--teal);margin-bottom:10px}
.workflow{display:grid;grid-template-columns:.95fr 1.05fr;gap:0;align-items:stretch;border-radius:24px;overflow:hidden;border:1px solid var(--line)}
.workflow>div:first-child{background:var(--left);padding:24px}
.wstep{display:grid;grid-template-columns:40px 1fr;gap:10px;padding-bottom:10px;border-bottom:1px dashed var(--line);margin-bottom:10px}
.wstep:last-child{border:0;margin:0;padding:0}
.wstep-num{width:32px;height:32px;border-radius:50%;background:#fff;display:grid;place-items:center;font-weight:900;color:var(--teal);font-size:12px}
.workflow-img{background:var(--right)}
.workflow-img img{width:100%;height:100%;min-height:260px;object-fit:cover}
.split{display:grid;grid-template-columns:1fr 1fr;gap:0;border-radius:24px;overflow:hidden;border:1px solid var(--line)}
.split img{width:100%;height:100%;min-height:240px;object-fit:cover}
.split>div:last-child{background:var(--right);padding:24px}
.check-list{list-style:none;display:grid;gap:8px;margin:12px 0}
.check-list li{padding-left:22px;position:relative;font-size:14px}
.check-list li:before{content:"○";position:absolute;left:0;color:var(--teal);font-weight:900}
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.product-card{padding:16px;background:#fff;border-radius:20px;border:1px solid var(--line)}
.product-tag{display:inline-block;margin-bottom:6px;padding:3px 10px;border-radius:999px;background:var(--soft);font-size:10px;font-weight:900;color:var(--teal)}
.scenario-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-radius:24px;overflow:hidden}
.scenario{padding:18px;background:var(--teal);color:#fff}
.scenario:nth-child(2){background:var(--blue)}
.scenario:nth-child(3){background:var(--amber)}
.scenario:nth-child(4){background:#8b6b5a}
.scenario p{color:rgba(255,255,255,.85);font-size:14px;font-family:-apple-system,"Microsoft YaHei",sans-serif}
.download-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.download-card{padding:18px;border-radius:22px;background:#fff;border:1px solid var(--line);text-align:center}
.download-card .btn{width:100%;margin-top:12px}
.news-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:0;border-radius:24px;overflow:hidden;border:1px solid var(--line)}
.news-list{background:var(--left);padding:18px}
.review-box{background:var(--right);padding:18px}
.news-item,.review-item{padding:8px 0;border-bottom:1px dashed var(--line);font-size:13px}
.update-log{margin-top:10px;padding:10px;border-radius:12px;background:#fff;font-size:12px}
.cta-band{background:#3a2c24;color:#fbf6ef;padding:40px 0;border-radius:28px;margin:0 0 8px}
.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.cta-inner p{color:#d8c8b8;max-width:520px;font-size:14px}
@media(max-width:980px){.spread,.workflow,.split,.news-grid{grid-template-columns:1fr}.gutter{display:none}.feature-grid,.product-grid,.download-grid,.scenario-grid,.steps-grid,.platform-panel{grid-template-columns:repeat(2,1fr)}.platform-panel{border-radius:20px}}
@media(max-width:720px){.hero-metrics,.feature-grid,.product-grid,.download-grid,.scenario-grid,.steps-grid,.platform-panel{grid-template-columns:1fr}}