.product-site{--text:#202b3c;--muted:#6b788c;--blue:#4d68f6;--green:#008f89;--line:#e4eaf2;--surface:#f7f9fc;background:#fff;color:var(--text)}
.product-site .shell{width:min(1200px,100% - 64px)}
.product-site .topbar{position:sticky;top:0;background:#fff;z-index:20;border-color:#e9edf5}
.product-site .topbar-inner{min-height:78px;gap:42px}
.product-site .brand{font-size:18px;font-weight:700;gap:11px}.product-site .brand img{width:34px;height:34px}
.product-site .topbar nav{gap:26px;font-size:14px}.product-site .topbar nav a{color:#5a667b}
.product-site .button{border-radius:7px;min-height:46px;padding:11px 22px;font-size:14px;gap:9px}
.product-site .button.primary{background:#4d68f6;border-color:#4d68f6;box-shadow:0 4px 10px #4d68f61a}.product-site .button.primary:hover{background:#405deb;border-color:#405deb}
.product-site .button.compact{min-height:36px;padding:7px 17px;font-size:13px;box-shadow:none}
.product-site .course-button{border-color:#dce3ee;color:#465a76}.product-site .course-button:hover{background:#f3f6fd;border-color:#c4cfec}
.product-hero{margin-inline:calc((min(1200px,100vw - 64px) - 100vw)/2);text-align:center;background:#fafcff}
.hero-copy{padding:48px 24px 44px;max-width:860px;margin:0 auto}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;color:#55718b;font-size:12px;font-weight:500}
.live-dot{width:6px;height:6px;background:#0cb4a9;border-radius:50%}
.product-hero h1{font-size:54px;font-weight:750;line-height:1.2;margin:18px 0 14px}.product-hero h1 span{color:#4d68f6;white-space:nowrap}
.hero-lead{font-size:23px;font-weight:500;line-height:1.5;margin:0 0 9px}.hero-description{color:#738094;font-size:15px;line-height:1.85;margin:0}
.hero-actions{display:flex;align-items:center;justify-content:center;gap:12px;margin:24px 0 11px}.hero-note{font-size:11px;color:#8a95a5}.hero-note span{margin:0 7px}
.product-workflows,.product-workflow,.course-explorer,.course-entry{scroll-margin-top:100px}
.product-workflow{--course-accent:#4d68f6;--course-wash:#eef2ff;--course-edge:#dce4fc;padding:52px 0;border-bottom:1px solid var(--line)}
.product-workflow.tone-teal{--course-accent:#008f89;--course-wash:#eaf8f5;--course-edge:#d2eeea}
.workflow-heading{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:30px}
.workflow-title{display:flex;align-items:center;gap:14px}.workflow-title h2{font-size:30px;line-height:1.3;margin:0;font-weight:650}
.workflow-icon{display:grid;place-items:center;width:42px;height:42px;border-radius:7px;background:var(--course-wash);color:var(--course-accent)}.workflow-icon .lucide{width:23px;height:23px}
.workflow-heading>p{font-size:15px;color:#62738b;margin:0}
.course-explorer{display:grid;grid-template-columns:minmax(0,330px) minmax(0,1fr);gap:48px;align-items:start}
.course-directory{min-width:0;padding-top:8px}.workflow-description{font-size:13px;line-height:1.9;color:var(--muted);margin:0 0 29px}
.directory-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:11px;color:#8996a8;padding:0 3px 14px;border-bottom:1px solid var(--line)}.directory-heading>span:first-child{display:flex;align-items:center;gap:7px;color:#5f7189;font-weight:500}.directory-heading .lucide{width:15px;height:15px;color:var(--course-accent)}
.course-tabs{display:grid;gap:6px;margin-top:11px}
.course-tab{position:relative;display:flex;align-items:center;gap:12px;min-height:102px;min-width:0;width:100%;padding:17px 16px;text-align:left;border:1px solid transparent;border-radius:7px;background:#fff;color:#687b94;transition:background .16s,border-color .16s}
.course-tab:hover{background:#f7f9fc}.course-tab[aria-selected=true]{background:var(--course-wash);border-color:var(--course-edge);color:var(--course-accent)}
.course-tab:before{content:"";position:absolute;left:-1px;top:24px;bottom:24px;width:3px;border-radius:2px;background:transparent}.course-tab[aria-selected=true]:before{background:var(--course-accent)}
.topic-icon{display:grid;place-items:center;width:34px;height:34px;flex-shrink:0;background:#f5f7fb;border-radius:6px;color:#8191a7}.topic-icon .lucide{width:18px;height:18px}.course-tab[aria-selected=true] .topic-icon{background:#fff;color:var(--course-accent)}
.topic-copy{flex:1;min-width:0;display:grid;gap:5px}.topic-title{font-size:15px;line-height:1.55;font-weight:600;color:#344962;overflow-wrap:anywhere}.course-tab[aria-selected=true] .topic-title{color:var(--course-accent)}.topic-subtitle{font-size:11px;line-height:1.65;color:#8190a5;overflow-wrap:anywhere}
.topic-index{font-size:10px;color:#a0acbd;font-variant-numeric:tabular-nums}.topic-arrow{width:15px!important;height:15px!important;flex-shrink:0}.course-tab:not([aria-selected=true]) .topic-arrow{color:#bcc6d4}
.course-preview{min-width:0}.course-panel{display:flex;flex-direction:column;min-width:0}.course-panel[hidden]{display:none}
.lesson-stage{position:relative;aspect-ratio:16/9;background:#f8fafc;border:1px solid #dfe6f0;border-bottom:0;border-radius:8px 8px 0 0;overflow:hidden;isolation:isolate}
.lesson-poster{display:block;width:100%;height:100%;object-fit:contain;background:#fafcff}
.lesson-stage-label,.lesson-stage-state{position:absolute;top:14px;display:flex;align-items:center;gap:6px;background:#fff;border:1px solid #e6ebf3;border-radius:4px;padding:5px 9px;font-size:10px;line-height:1.4;color:#70829b;box-shadow:0 2px 7px #283b5d08}.lesson-stage-label{left:14px}.lesson-stage-label .lucide{width:13px;height:13px;color:var(--course-accent)}.lesson-stage-state{right:14px;color:#a17539;background:#fff8ee;border-color:#f6ead6}
.lesson-play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);display:grid;place-items:center;width:58px;height:58px;padding:0;border:1px solid #dfe7f4;border-radius:50%;background:#fff;color:var(--course-accent);box-shadow:0 5px 22px #2338541a;cursor:default!important}.lesson-play:disabled{opacity:1}.lesson-play .lucide{width:23px;height:23px;margin-left:3px;fill:var(--course-wash)}
.lesson-player-bar{height:42px;display:flex;align-items:center;gap:13px;padding:0 14px;border:1px solid #dfe6f0;border-top:1px solid #e8edf4;border-radius:0 0 8px 8px;background:#f8fafd;color:#96a4b7}.lesson-player-bar button{display:grid;place-items:center;width:24px;height:26px;flex-shrink:0;padding:0;border:0;background:transparent;color:#9aa7b9;cursor:default!important}.lesson-player-bar button:disabled{opacity:1}.lesson-player-bar .lucide{width:15px;height:15px;flex-shrink:0}.player-time{font-size:10px;font-variant-numeric:tabular-nums;color:#a2aec0}.player-track{height:3px;flex:1;border-radius:2px;background:#e3eaf3}
.lesson-detail{padding:22px 0 18px;min-height:166px}.lesson-topic-label{font-size:10px;color:var(--course-accent);font-weight:500}.lesson-heading h3{font-size:19px;line-height:1.6;font-weight:650;color:#293e58;margin:6px 0 9px;overflow-wrap:anywhere}.lesson-detail>p{font-size:12px;color:#738299;line-height:1.85;margin:0;overflow-wrap:anywhere}
.lesson-points{display:flex;flex-wrap:wrap;gap:8px 18px;list-style:none;margin:16px 0 0;padding:0}.lesson-points li{display:flex;align-items:center;gap:5px;color:#66798f;font-size:11px;line-height:1.7}.lesson-points .lucide{width:12px;height:12px;flex-shrink:0;color:var(--course-accent)}
.course-entry{min-width:0}.lesson-footer{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:40px;border-top:1px solid var(--line);padding:13px 0 0;font-size:11px}.lesson-placeholder-status{display:flex;align-items:center;gap:7px;color:#8a97a8}.lesson-placeholder-status>span{height:5px;width:5px;border-radius:50%;background:#e6ae5f}.lesson-coming{color:#a0abba;font-size:10px}.lesson-footer .lesson-action{display:inline-flex;align-items:center;gap:5px;color:var(--course-accent);font-size:11px}.lesson-footer .lesson-action .lucide{width:14px;height:14px}
.product-support{display:flex;align-items:center;gap:28px;padding:25px 0 31px;font-size:12px;color:#748196}.product-support>p{display:flex;align-items:center;gap:8px;margin:0}.product-support .lucide{width:15px;height:15px;flex-shrink:0}.product-support>p>.lucide{color:#008f89}.product-support .lesson-action{display:flex;align-items:center;gap:12px;font-size:11px}.product-support .lesson-title{color:#475c78;overflow-wrap:anywhere}.product-support .lesson-pending{color:#8391a5;font-size:11px}.product-support .lesson-available{display:flex;align-items:center;gap:5px;color:#008f89;font-size:11px}.installation-link{margin-left:auto;display:flex;align-items:center;gap:5px;white-space:nowrap;color:#4d68f6;font-size:12px}
.product-site .footer{margin-top:0;border-top:1px solid var(--line);padding-block:26px;color:#8996a7}
@media(max-width:1000px){.product-site .topbar-inner{gap:22px}.product-site .topbar nav{gap:15px;font-size:12px}.product-site .account-nav{gap:12px;font-size:12px}.course-explorer{grid-template-columns:minmax(0,290px) minmax(0,1fr);gap:28px}.course-tab{gap:9px;padding:14px 12px}.topic-title{font-size:14px}.topic-icon{width:30px;height:30px}.lesson-detail{min-height:185px}.lesson-points{gap:7px 12px}.product-support{gap:20px;flex-wrap:wrap}}
@media(max-width:760px){.product-site .shell{width:calc(100% - 36px)}.product-site .topbar-inner{min-height:100px;flex-wrap:wrap;padding:12px 0;gap:10px}.product-site .brand{font-size:16px;gap:8px}.product-site .brand img{width:28px;height:28px}.product-site .topbar nav{order:3;width:100%;justify-content:center;gap:24px;font-size:12px}.product-site .topbar nav a{padding-right:0}.product-site .account-nav{gap:10px}.product-site .account-nav .button{padding:5px 11px;min-height:30px;font-size:11px}.product-site .account-nav>a{max-width:90px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.product-hero{margin-inline:-18px}.hero-copy{padding:32px 20px 30px}.product-hero h1{font-size:36px;margin-top:16px;line-height:1.4}.hero-kicker{font-size:11px}.hero-lead{font-size:19px;margin-top:9px}.hero-description{font-size:12px}.hero-actions{gap:9px;margin-top:22px}.product-site .hero-actions .button{padding:10px 14px;min-height:42px;font-size:12px}.hero-note{font-size:10px}
.product-workflows,.product-workflow,.course-explorer,.course-entry{scroll-margin-top:120px}.product-workflow{padding:34px 0}.workflow-heading{align-items:flex-start;flex-direction:column;gap:12px;margin-bottom:20px}.workflow-title h2{font-size:26px}.workflow-icon{width:36px;height:36px}.workflow-icon .lucide{width:20px;height:20px}.workflow-heading>p{font-size:13px}.course-explorer{grid-template-columns:1fr;gap:23px}.course-directory{padding-top:0}.workflow-description{font-size:12px;margin-bottom:19px}.course-tab{min-height:83px;padding:14px 13px;gap:12px}.topic-title{font-size:14px}.topic-subtitle{font-size:11px}.topic-icon{width:32px;height:32px}.course-tab:before{top:20px;bottom:20px}.lesson-stage-label,.lesson-stage-state{top:10px;padding:4px 6px;font-size:9px}.lesson-stage-label{left:10px}.lesson-stage-state{right:10px}.lesson-play{width:46px;height:46px}.lesson-play .lucide{width:19px;height:19px}.lesson-player-bar{height:36px;padding-inline:10px;gap:10px}.lesson-player-bar .lucide{width:13px;height:13px}.lesson-detail{min-height:184px;padding:18px 0}.lesson-heading h3{font-size:18px}.lesson-points{gap:7px 12px}.lesson-points li{font-size:10px}.lesson-footer{padding-top:12px}.product-support{gap:12px;padding:24px 0;align-items:flex-start}.product-support>p{width:100%;font-size:11px}.product-support .lesson-action{gap:8px}.product-support .lesson-title{font-size:10px}.installation-link{font-size:11px}.product-site .footer{font-size:10px;gap:12px;flex-wrap:wrap}.product-site .footer>div{gap:16px}}
@media(max-width:380px){.product-hero h1{font-size:32px}.product-site .brand{font-size:14px}.product-site .account-nav{font-size:11px}.product-support .installation-link{margin-left:0}.topic-title{font-size:13px}.lesson-stage-label{gap:4px}.lesson-stage-state{padding-inline:5px}.lesson-points{gap:5px 10px}}
@media(min-width:761px) and (max-width:1000px){.lesson-detail{min-height:210px}}
@media(max-width:760px){.lesson-detail{min-height:220px}}
@media(max-width:380px){.lesson-detail{min-height:245px}}