.intro{min-height:390px;padding-top:45px;padding-bottom:50px}.intro h1{font-size:64px}.section-block{padding-top:34px;padding-bottom:48px}.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.topic-card{position:relative;padding:18px 20px 21px 0}.topic-card+.topic-card{padding-left:20px;border-left:1px solid var(--line)}.topic-index,.project-grid article>span{color:var(--green);font-size:9px;font-weight:700;letter-spacing:.7px}.topic-symbol{position:relative;width:62px;height:44px;margin:15px 0 12px}.circle-symbol:before{content:"";position:absolute;left:8px;top:0;width:42px;height:42px;border:2px solid var(--coral);border-radius:50%}.angle-symbol:before{content:"";position:absolute;left:7px;top:4px;width:41px;height:36px;border-left:2px solid var(--green);border-bottom:2px solid var(--green);transform:skewY(-38deg)}.polygon-symbol:before{content:"";position:absolute;inset:3px 12px 2px;background:#e7b84e;clip-path:polygon(50% 0,100% 38%,81% 100%,19% 100%,0 38%)}.area-symbol:before{content:"";position:absolute;left:8px;top:4px;width:48px;height:35px;border:2px solid var(--green);background:repeating-linear-gradient(90deg,transparent 0 14px,#a9cdb8 15px 16px),repeating-linear-gradient(0deg,transparent 0 14px,#a9cdb8 15px 16px)}.topic-card h3,.project-grid h3{margin:0 0 7px;font-size:14px}.topic-card p,.project-grid p{margin:0;color:var(--muted);font-size:11px}.topic-link{margin-top:12px;padding:0;border:0;background:transparent;color:var(--green);font-size:11px;cursor:pointer}.topic-detail{display:flex;justify-content:space-between;gap:18px;margin-top:16px;padding:18px 20px;border-left:3px solid var(--coral);background:#fff}.topic-detail h3{margin:0 0 6px;font:400 20px Georgia,serif}.topic-detail p:last-child{max-width:820px;margin:0;color:var(--muted);font-size:12px}.practice-band,.project-band{background:#edf2ed}.practice-layout{display:grid;grid-template-columns:235px 1fr;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.practice-list{display:flex;flex-direction:column;border-right:1px solid var(--line)}.practice-list .task-tab{border-bottom:1px solid var(--line)}.task-panel{min-height:205px}.task-panel h3{font-size:18px}.task-panel p{font-size:12px}.task-fields input{width:95px}.task-fields button{font-size:11px}.task-result{font-size:12px}.lab-controls h3{margin:0 0 17px;font-size:15px}.vision-section{padding-bottom:35px}.vision-layout{grid-template-columns:260px 1fr}.vision-tools>p:first-child{font-size:12px}.image-stage{min-height:250px}.privacy-note{margin:12px 0 0;color:var(--muted);font-size:10px}.project-band .section-wrap{padding-top:34px;padding-bottom:45px}.project-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.project-grid article{padding:18px 20px 18px 0}.project-grid article+article{padding-left:20px;border-left:1px solid var(--line)}.project-grid h3{margin-top:10px}.teacher-section{padding-bottom:43px}.teacher-item h3{font-size:14px}.teacher-item p{font-size:11px}.topic-detail[hidden]{display:none}
.privacy-band{background:#e7eee8;border-top:1px solid #d4ded5}.privacy-inner{display:grid;grid-template-columns:290px 1fr;gap:40px;align-items:start;padding-top:27px;padding-bottom:28px}.privacy-inner h2{margin:0;font:400 23px Georgia,serif}.privacy-inner>p{max-width:740px;margin:2px 0;color:#58645d;font-size:11px}.footer a{color:var(--green)}
.home-modules{padding-top:30px;padding-bottom:40px}.module-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.module-grid a{display:grid;grid-template-columns:32px 1fr;align-content:start;gap:3px 10px;min-height:88px;padding:15px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(255,255,255,.4)}.module-grid a:hover{background:#fff}.module-grid a>span{grid-row:span 2;color:var(--coral);font-size:10px;font-weight:700}.module-grid strong{font-size:13px}.module-grid small,.new-task-grid small{color:var(--muted);font-size:10px}.new-tasks{padding-top:25px;padding-bottom:38px}.new-task-grid{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.new-task-grid a{display:grid;gap:6px;padding:16px 20px 16px 0}.new-task-grid a+a{padding-left:20px;border-left:1px solid var(--line)}.new-task-grid span{color:var(--green);font-size:9px;font-weight:700;letter-spacing:.6px}.new-task-grid strong{font-size:14px}
@media(max-width:760px){.intro{min-height:0}.intro h1{font-size:52px}.topic-grid{grid-template-columns:repeat(2,1fr)}.topic-card:nth-child(3){border-left:0;padding-left:0;border-top:1px solid var(--line)}.topic-card:nth-child(4){border-top:1px solid var(--line)}.practice-layout{grid-template-columns:1fr}.practice-list{display:grid;grid-template-columns:repeat(3,1fr);border-right:0;border-bottom:1px solid var(--line)}.practice-list .task-tab{font-size:11px;padding:12px 8px}.project-grid{grid-template-columns:1fr}.project-grid article,.project-grid article+article{padding:16px 0;border-left:0;border-bottom:1px solid var(--line)}.vision-layout{grid-template-columns:1fr}.lab-controls{padding-right:0}.module-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:520px){.topbar{padding:9px 14px}.brand{font-size:12px}.main-nav{gap:16px}.main-nav a{font-size:11px}.intro h1{font-size:48px}.topic-card{padding-right:11px}.topic-card+.topic-card{padding-left:11px}.topic-card:nth-child(3){padding-left:0}.section-heading h2{font-size:27px}.module-grid{grid-template-columns:1fr}.module-grid a{min-height:72px}.new-task-grid{grid-template-columns:1fr}.new-task-grid a+a{padding-left:0;border-left:0;border-top:1px solid var(--line)}}