/* Research site composition: proportional research, grouped tutorials, ambient motion. */
:root{--c-bg:#f5f7fb;--c-fg:#24354b;--c-fg-soft:#53667d;--c-muted:#74869d;--c-surface:#fff;--c-code-bg:#edf2f8;--c-border:#d7e1ee;--c-primary:#346da8;--c-accent:#287f83;--c-primary-soft:#e5eef9;--c-accent-soft:#e7f2f2}
:root[data-theme=dark]{--c-bg:#0b1422;--c-fg:#e3ebf8;--c-fg-soft:#abbcd1;--c-muted:#7e94af;--c-surface:#111f33;--c-code-bg:#101b2c;--c-border:#263b56;--c-primary:#91bafa;--c-accent:#80cfc7;--c-primary-soft:#1b3050;--c-accent-soft:#17363e}
.site-layout{overflow-x:clip}.site-layout main.container{position:relative;z-index:1}.site-layout .site-header{z-index:100;background:color-mix(in srgb,var(--c-bg) 94%,transparent)}.site-logo{background:linear-gradient(105deg,var(--c-primary),var(--c-accent));background-clip:text;-webkit-background-clip:text;color:transparent;-webkit-text-fill-color:transparent}.site-logo .dot{-webkit-text-fill-color:var(--c-accent)}.site-footer{background:color-mix(in srgb,var(--c-bg) 96%,transparent);position:relative;z-index:1}.preview-section{padding:36px 0 24px}.preview-section-head{margin-bottom:24px}.preview-section-head h2{font-size:23px;font-weight:650;letter-spacing:.015em}.preview-section-head>a{padding:5px 0}
.home-intro{grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);gap:24px;padding:58px 0 48px;border-bottom:0;position:relative}.home-intro:after{content:'';position:absolute;bottom:0;left:0;right:0;height:1px;background:linear-gradient(90deg,var(--c-border),color-mix(in srgb,var(--c-accent) 40%,transparent),transparent)}.home-identity{letter-spacing:.03em;color:var(--c-fg-soft);margin-bottom:20px}.home-intro h1{font-size:38px;line-height:1.5;font-weight:650;letter-spacing:-.02em}.home-intro .home-description{font-size:15px;line-height:1.95;max-width:540px}.home-links{gap:15px 24px}.home-links a{display:inline-flex;align-items:center;min-height:40px;padding:7px 0;font-size:13px}.home-scene{height:360px;position:relative;min-width:0;background:radial-gradient(ellipse,color-mix(in srgb,var(--c-primary) 6%,transparent),transparent 67%)}.home-scene canvas{display:block;pointer-events:none;touch-action:auto;cursor:default}
.home-work-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;align-items:stretch}.home-work{border:1px solid var(--c-border);background:color-mix(in srgb,var(--c-surface) 93%,transparent);border-radius:12px;overflow:hidden;transition:border-color .2s,transform .2s,box-shadow .2s}.home-work>a{display:flex;flex-direction:column;height:100%;color:inherit}.home-work figure{margin:0;border-radius:0;height:270px;padding:15px;background:#f7f9fc;display:flex;align-items:center;justify-content:center}.home-work figure img{width:100%;height:100%;object-fit:contain;transform:none;transition:none}.home-work-copy{padding:20px 23px 23px;flex:1}.home-work .home-venue{font-size:11.5px;line-height:1.7;color:var(--c-accent);margin:0 0 8px}.home-work h3{font-size:19px;font-weight:600;line-height:1.65;margin:0 0 10px;letter-spacing:0}.home-work p{font-size:14px;line-height:1.85;margin:0;color:var(--c-fg-soft)}.home-work a:hover{color:inherit}
.home-learning{padding-bottom:32px}.home-learning-layout{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:26px;align-items:stretch}.home-topic-index{display:flex;flex-direction:column;border:1px solid var(--c-border);border-radius:12px;overflow:hidden;background:color-mix(in srgb,var(--c-surface) 94%,transparent)}.home-topic-index>a{display:grid;grid-template-columns:34px 1fr auto 12px;align-items:center;gap:13px;padding:17px 19px;flex:1;min-height:64px;color:var(--c-fg);border-bottom:1px solid var(--c-border);font-size:14px;line-height:1.6}.home-topic-index>a:last-child{border-bottom:0}.topic-icon{width:31px;height:31px;display:block;flex:none;color:var(--topic-color,var(--c-primary))}.home-topic-index small{font-size:11px;font-variant-numeric:tabular-nums;color:var(--c-muted)}.topic-arrow{font-size:13px;color:var(--c-muted);transition:transform .2s}.home-lesson-picks{display:grid;grid-template-rows:repeat(3,1fr);gap:12px}.home-lesson{position:relative;display:flex;flex-direction:column;justify-content:center;padding:17px 40px 17px 22px;border:1px solid var(--c-border);border-radius:10px;background:color-mix(in srgb,var(--c-surface) 87%,transparent);color:var(--c-fg)}.home-lesson h3{font-size:16px;line-height:1.7;font-weight:550;margin:0 0 6px}.home-lesson p{font-size:13px;line-height:1.85;color:var(--c-fg-soft);margin:0;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden;text-align:justify;text-align-last:start;hyphens:auto}.home-lesson>span{position:absolute;right:16px;top:20px;font-size:14px;color:var(--c-muted);transition:transform .2s}
.home-activity-section{border-top:1px solid var(--c-border);padding-top:32px}.home-events{grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.home-event{border:1px solid var(--c-border);border-radius:10px;padding:0 0 16px;background:color-mix(in srgb,var(--c-surface) 94%,transparent);overflow:hidden}.home-event figure{margin:0;padding:8px;background:var(--c-code-bg);height:185px}.home-event img{width:100%;height:100%;object-fit:contain;background:transparent}.home-event time{font-size:11px;margin:13px 17px 4px}.home-event h3{font-size:15px;line-height:1.75;font-weight:550;margin:0 17px}.home-event a{color:inherit}
.explore-header{padding:32px 0 25px;border-bottom:0}.explore-header h1{font-size:30px;line-height:1.4;font-weight:650;margin:0 0 13px}.explore-header p{max-width:760px;font-size:14px;line-height:1.85}.explore-layout{display:grid;grid-template-columns:235px minmax(0,1fr);gap:30px;align-items:start}.explore-content{min-width:0}.topic-sidebar{position:sticky;top:90px;min-width:0}.topic-filters{display:flex;flex-direction:column;gap:5px;margin:0;border:1px solid var(--c-border);border-radius:12px;padding:10px;background:color-mix(in srgb,var(--c-surface) 95%,transparent)}.topic-filters a,.topic-filters button{display:grid;grid-template-columns:24px 1fr auto;align-items:center;gap:10px;border:0;border-radius:7px;background:transparent;padding:11px 10px;text-align:start;font-size:12.5px;font-weight:500;line-height:1.65;color:var(--c-fg-soft);min-width:0;min-height:48px}.topic-filters>*:first-child{display:flex;justify-content:space-between;padding-left:12px}.topic-filters .topic-icon{width:24px;height:24px}.topic-filters small{font-size:10px;color:var(--c-muted)}.topic-filters [aria-pressed=true],.topic-filters [aria-current=page]{background:var(--c-primary-soft);color:var(--c-primary);box-shadow:inset 2px 0 var(--c-primary)}.topic-select{display:none}.explore-results-head{display:flex;justify-content:space-between;gap:15px;align-items:center;border-bottom:1px solid var(--c-border);padding:0 0 14px;margin:0 0 18px}.explore-results-head h2{font-size:19px;font-weight:550;line-height:1.7;margin:0}.explore-results-head>span{font-size:12px;color:var(--c-muted)}.explore-results-head>span:after{content:' 篇'}html:lang(en) .explore-results-head>span:after{content:' articles'}.explore-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:0}.explore-row.tutorial-card{display:block;padding:0;border:1px solid var(--c-border);border-radius:11px;background:color-mix(in srgb,var(--c-surface) 94%,transparent);min-width:0;transition:border-color .2s,transform .2s,box-shadow .2s}.explore-row.tutorial-card[hidden]{display:none}.explore-row .tutorial-card-main{display:flex;flex-direction:column;position:relative;padding:21px 23px 43px;height:100%;color:inherit;min-height:190px}.explore-row .topic-name{font-size:10.5px;line-height:1.7;padding:0;color:var(--c-accent);margin-bottom:9px}.explore-row h2{font-size:17px;font-weight:550;line-height:1.75;margin:0 0 10px;letter-spacing:0}.explore-row p{font-size:13px;line-height:1.85;color:var(--c-fg-soft);margin:0;text-align:justify;text-align-last:start;hyphens:auto;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden}.explore-row .tutorial-arrow{position:absolute;right:20px;bottom:13px;color:var(--c-muted);font-size:15px;transition:transform .2s}.explore-layout[data-active-topic]:not([data-active-topic=all]) .explore-row .topic-name{display:none}.topic-overview{display:flex;flex-wrap:wrap;justify-content:center;gap:22px}.topic-overview-card{flex:0 0 calc((100% - 44px)/3);min-width:0;border:1px solid var(--c-border);border-radius:13px;background:color-mix(in srgb,var(--c-surface) 96%,transparent);overflow:hidden;display:flex;flex-direction:column;transition:border-color .2s,transform .2s,box-shadow .2s}.topic-cover{display:grid;grid-template-columns:40px 1fr auto;gap:12px 10px;position:relative;padding:22px;color:var(--c-fg);border-bottom:1px solid var(--c-border);flex:1;background:linear-gradient(140deg,color-mix(in srgb,var(--topic-color,var(--c-primary)) 8%,transparent),transparent 70%)}.topic-cover .topic-icon{width:36px;height:36px;grid-row:1/3}.topic-cover h2{font-size:17px;font-weight:600;line-height:1.6;margin:0;align-self:center}.topic-cover>span{font-size:11px;color:var(--c-muted);grid-column:2;align-self:start}.topic-cover p{font-size:13px;line-height:1.85;color:var(--c-fg-soft);margin:2px 0 0;grid-column:1/-1;hyphens:auto;text-align:justify;text-align-last:start}.topic-cover b{position:absolute;right:18px;top:21px;font-size:13px;font-weight:400;color:var(--c-muted)}.topic-examples{padding:5px 22px 12px;min-height:104px}.topic-examples>a{font-size:12px;line-height:1.8;color:var(--c-fg-soft);padding:10px 0;display:block}.topic-examples>a+a{border-top:1px solid var(--c-border)}.topic-examples a:hover{color:var(--c-primary)}.all-tutorials-link{display:flex;justify-content:center;align-items:center;gap:25px;padding:18px 0;margin:22px 0 10px;font-size:13px;color:var(--c-primary)}.explore-layout[data-explore-mode=overview]:not([data-active-topic]),.explore-layout[data-explore-mode=overview][data-active-topic=all]{grid-template-columns:1fr}.explore-layout[data-explore-mode=overview]:not([data-active-topic])>.topic-sidebar,.explore-layout[data-explore-mode=overview][data-active-topic=all]>.topic-sidebar{display:none}.explore-layout[data-explore-mode=overview][data-active-topic]:not([data-active-topic=all]) .all-tutorials-link{display:none}.topic-overview[hidden],.explore-results[hidden]{display:none!important}
[data-color=machine-learning]{--topic-color:#84ace3}[data-color=multiscale-modeling]{--topic-color:#9bafd5}[data-color=biomaterials]{--topic-color:#77bfb8}[data-color=python-tutorials]{--topic-color:#9ab7ca}[data-color=wet-lab-data]{--topic-color:#78b7d0}:root[data-theme=light] [data-color]{--topic-color:var(--c-primary)}
@media(hover:hover) and (pointer:fine){.home-work:hover,.tutorial-card:hover,.topic-overview-card:hover{border-color:color-mix(in srgb,var(--c-primary) 64%,var(--c-border));transform:translateY(-3px);box-shadow:0 10px 30px rgba(0,0,0,.08)}.home-topic-index>a:hover{background:var(--c-primary-soft)}.home-topic-index>a:hover .topic-arrow,.home-lesson:hover>span,.tutorial-card:hover .tutorial-arrow{transform:translate(2px,-2px);color:var(--c-primary)}.home-lesson:hover{border-color:var(--c-primary)}.topic-filters a:hover,.topic-filters button:hover{background:var(--c-primary-soft);color:var(--c-primary)}}
@media(max-width:1000px){.home-intro h1{font-size:32px}.home-learning-layout{grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:18px}.home-topic-index>a{font-size:13px;padding:15px;gap:10px}.explore-layout{grid-template-columns:210px minmax(0,1fr);gap:20px}.topic-overview-card{flex-basis:calc((100% - 22px)/2)}.topic-overview-card:last-child{flex-basis:calc((100% - 22px)/2)}.explore-row .tutorial-card-main{padding:18px 19px 38px}.explore-row h2{font-size:16px}}
@media(max-width:760px){.preview-section{padding:24px 0 18px}.preview-section-head{margin-bottom:16px;gap:12px}.preview-section-head h2{font-size:19px}.home-intro{grid-template-columns:1fr;gap:6px;padding:25px 0 14px}.home-intro h1{font-size:24px;line-height:1.45;letter-spacing:-.025em;margin-bottom:15px}.home-identity{font-size:11.5px;margin-bottom:12px}.home-intro .home-description{font-size:13.5px;line-height:1.85;margin-bottom:10px}.home-links{gap:16px}.home-links a{font-size:12px;min-height:38px}.home-scene{height:210px;max-width:420px;width:100%;justify-self:center}.home-work-grid{grid-template-columns:1fr;gap:17px}.home-work{border-radius:10px}.home-work figure{height:220px;padding:12px}.home-work-copy{padding:16px 17px 18px}.home-work h3{font-size:16px;line-height:1.7;margin-bottom:8px}.home-work p{font-size:13px;line-height:1.85}.home-work .home-venue{font-size:11px;margin-bottom:6px}.home-learning-layout{grid-template-columns:1fr;gap:17px}.home-topic-index{border-radius:10px}.home-topic-index>a{min-height:53px;padding:10px 15px;font-size:13px;grid-template-columns:26px 1fr auto 12px;gap:12px}.home-topic-index .topic-icon{width:26px;height:26px}.home-lesson-picks{gap:10px}.home-lesson{padding:14px 37px 14px 16px;border-radius:9px}.home-lesson h3{font-size:14px;line-height:1.75}.home-lesson p{font-size:12.5px;line-height:1.8}.home-events{grid-template-columns:1fr;gap:13px}.home-event{display:block;padding:0;border-radius:9px}.home-event>a{display:grid;grid-template-columns:115px minmax(0,1fr);grid-template-rows:auto auto;gap:2px 13px;padding:10px;align-items:center}.home-event figure{height:90px;width:115px;padding:0;border-radius:4px;grid-row:1/3;margin:0}.home-event img{height:100%;width:100%;object-fit:contain}.home-event time{margin:0;font-size:10.5px;align-self:end}.home-event h3{font-size:13px;line-height:1.7;margin:0;align-self:start}.explore-header{padding:22px 0 18px}.explore-header h1{font-size:24px;line-height:1.45;margin-bottom:10px}.explore-header p{font-size:13px;line-height:1.85}.explore-layout{grid-template-columns:1fr;gap:18px}.topic-sidebar{position:static}.topic-sidebar .topic-filters{display:none}.topic-select{display:block;width:100%;font-size:16px;line-height:1.5;padding:10px 12px;min-height:44px;border:1px solid var(--c-border);border-radius:8px;background:var(--c-surface);color:var(--c-fg)}.topic-overview{gap:14px}.topic-overview-card,.topic-overview-card:last-child{flex-basis:100%;border-radius:10px}.topic-cover{padding:17px 18px;grid-template-columns:35px 1fr auto;gap:7px 10px}.topic-cover .topic-icon{width:31px;height:31px}.topic-cover h2{font-size:16px;line-height:1.6}.topic-cover>span{font-size:11px}.topic-cover p{font-size:12.5px;line-height:1.8;margin-top:4px}.topic-cover b{top:18px;right:17px}.topic-examples{padding:3px 18px 6px;min-height:0}.topic-examples>a{font-size:12px;line-height:1.8;padding:9px 0}.all-tutorials-link{font-size:12.5px;padding:12px;margin:12px 0}.explore-list{grid-template-columns:1fr;gap:12px}.explore-row .tutorial-card-main{padding:16px 18px 35px;min-height:0}.explore-row h2{font-size:15px;line-height:1.7;margin-bottom:8px}.explore-row p{font-size:13px;line-height:1.8;-webkit-line-clamp:3}.explore-row .topic-name{font-size:10.5px;margin-bottom:6px}.explore-results-head{padding-bottom:11px;margin-bottom:14px}.explore-results-head h2{font-size:17px}.explore-results-head>span{font-size:11px}}
@media(max-width:360px){.home-intro h1,.explore-header h1{font-size:22px}.home-scene{height:190px}.home-links{gap:13px}.home-links a{font-size:11.5px}.home-work figure{height:200px}}
@media(prefers-reduced-motion:reduce){html:not([data-motion="full"]) :is(.home-work,.tutorial-card,.topic-overview-card,.topic-arrow,.tutorial-arrow){transform:none!important;transition:none!important}}
html[data-motion="reduced"] :is(.home-work,.tutorial-card,.topic-overview-card,.topic-arrow,.tutorial-arrow){transform:none!important;transition:none!important}

.explore-header h1 .topic-total{display:inline-block;vertical-align:middle;margin-left:18px;font-size:12px;font-weight:400;letter-spacing:0;line-height:1.6;color:var(--c-muted)}

/* Home activity overview; complete entries share the profile gallery. */
.home-activity-section.profile-redesign{max-width:none;padding:32px 0 10px;margin:26px 0 0;border-top:1px solid var(--c-border)}
.home-activity-section.profile-redesign .pr-activities-section{padding:0;margin:0;border:0}
.home-activity-section.profile-redesign .pr-section-head{margin:0 0 24px}
.home-activity-section.profile-redesign .pr-section-head h2{font-size:23px;letter-spacing:.015em}
.home-activity-section.profile-redesign .pr-section-head h2::before{display:none}
.home-activity-section.profile-redesign .pr-activities{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;position:relative;padding:0}
.home-activity-section.profile-redesign .pr-activities::before{left:0;right:0;top:12px;bottom:auto;width:auto;height:1px}
.home-activity-section.profile-redesign .pr-activity{display:flex;flex-direction:column;gap:0;min-width:0;padding:0;margin:0;border:0}
.home-activity-section.profile-redesign .pr-activity>time{position:relative;align-self:start;font-size:12px;line-height:24px;padding:0 10px 0 15px;margin:0 0 18px;background:var(--c-bg)}
.home-activity-section.profile-redesign .pr-activity>time::before{left:0;top:9px;width:6px;height:6px}
.home-activity-section.profile-redesign .pr-activity-card{display:flex;flex-direction:column;flex:1;gap:0;min-width:0;border:1px solid var(--c-border);border-radius:11px;overflow:hidden;background:var(--c-surface)}
.home-activity-section.profile-redesign .pr-activity-photo{flex:none;width:100%;min-height:0;height:210px;aspect-ratio:auto;border:0;border-bottom:1px solid var(--c-border);border-radius:0;margin:0;padding:10px}
.home-activity-section.profile-redesign .pr-activity-photo>.pr-image-link{position:absolute;inset:10px}
.home-activity-section.profile-redesign .pr-activity-photo img{width:100%;height:100%;object-fit:contain}
.home-activity-section.profile-redesign .pr-activity-copy{padding:18px 20px 22px;display:block}
.home-activity-section.profile-redesign .pr-activity h3{font-size:16px;line-height:1.65;margin:0 0 10px}
.home-activity-section.profile-redesign .pr-activity .pr-prose{font-size:13px;line-height:1.85;margin:0}
@media(max-width:760px){
 .home-activity-section.profile-redesign{padding-top:24px;margin-top:18px}
 .home-activity-section.profile-redesign .pr-section-head{margin-bottom:18px}
 .home-activity-section.profile-redesign .pr-section-head h2{font-size:19px}
 .home-activity-section.profile-redesign .pr-activities{grid-template-columns:1fr;gap:18px;padding-left:17px}
 .home-activity-section.profile-redesign .pr-activities::before{left:0;right:auto;top:12px;bottom:0;width:1px;height:auto}
 .home-activity-section.profile-redesign .pr-activity>time{padding:0 8px 0 0;margin-bottom:9px;font-size:11px}
 .home-activity-section.profile-redesign .pr-activity>time::before{left:-20px;top:9px}
 .home-activity-section.profile-redesign .pr-activity-card{display:grid;grid-template-columns:116px minmax(0,1fr);align-items:center;padding:9px;gap:12px;border-radius:9px}
 .home-activity-section.profile-redesign .pr-activity-photo{height:100px;width:116px;border:0;padding:0;background:transparent}
 .home-activity-section.profile-redesign .pr-activity-photo>.pr-image-link{inset:0}
 .home-activity-section.profile-redesign .pr-activity-copy{padding:2px 0}
 .home-activity-section.profile-redesign .pr-activity h3{font-size:13px;line-height:1.65;margin-bottom:7px}
 .home-activity-section.profile-redesign .pr-activity .pr-prose{font-size:12px;line-height:1.75}
}
@media(max-width:360px){.home-activity-section.profile-redesign .pr-activity-card{grid-template-columns:90px minmax(0,1fr);gap:10px}.home-activity-section.profile-redesign .pr-activity-photo{width:90px;height:90px}}