.materials-section{padding-top:104px;padding-bottom:112px;background:#f3f9f9}
.materials-heading{display:grid;grid-template-columns:1fr .75fr;gap:48px;align-items:end;margin:18px 0 30px}
.materials-heading h2{font-size:clamp(42px,5vw,60px);line-height:1.02;margin:0;letter-spacing:-.035em}
.materials-heading h2 span{color:var(--color-action)}
.materials-heading>p{max-width:480px;margin:0 0 5px;color:var(--color-ink-700);font-size:18px;line-height:1.55}
.materials-note{display:flex;gap:12px;align-items:flex-start;margin:0 0 24px;padding:17px 20px;border:1px solid #d8e9eb;border-radius:16px;background:#fff;color:#52676d;font-size:14px;line-height:1.55}
.materials-note strong{color:var(--color-ink-900)}
.materials-note a{color:var(--color-action);font-weight:800;text-decoration:underline;text-underline-offset:3px}
.materials-guide{margin:26px 0 30px;padding:24px;border:1px solid #dce9ea;border-radius:20px;background:rgba(255,255,255,.72)}
.materials-guide-heading{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:17px}
.materials-guide-heading span,.materials-guide-grid article>span{color:#287480;font-size:10px;font-weight:900;letter-spacing:.12em}
.materials-guide-heading h3{margin:6px 0 0;color:var(--color-ink-900);font-size:26px;line-height:1.15}
.materials-guide-heading>p{max-width:520px;margin:0;color:#718388;font-size:13px;line-height:1.55}
.materials-guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.materials-guide-grid article{min-width:0;padding:16px;border:1px solid #e2ecec;border-radius:14px;background:#fff}
.materials-guide-grid h4{margin:7px 0 6px;color:var(--color-ink-900);font-size:16px;line-height:1.25}
.materials-guide-grid p{margin:0;color:#64797e;font-size:12px;line-height:1.55}
.materials-guide-caveat{margin:12px 0 0;padding:12px 14px;border-left:3px solid #edaa6b;border-radius:0 10px 10px 0;background:#fff7ef;color:#6b5e54;font-size:12px;line-height:1.55}
.materials-guide-caveat strong{color:#293b3f}
.materials-toolbar{display:grid;grid-template-columns:minmax(220px,1fr) minmax(220px,.52fr);gap:14px;margin:26px 0 15px}
.materials-control{display:grid;gap:7px;color:#60757a;font-size:12px;font-weight:800;letter-spacing:.03em}
.materials-control input,.materials-control select{width:100%;min-height:52px;padding:0 16px;border:1px solid #d5e3e5;border-radius:14px;background:#fff;color:var(--color-ink-900);font:600 15px var(--font-ui)}
.materials-control input::placeholder{color:#87999d;font-weight:400}
.materials-control input:focus-visible,.materials-control select:focus-visible{outline:3px solid var(--color-focus);outline-offset:2px}
.materials-summary{margin:14px 0 17px;color:#6d8085;font-size:13px}
.materials-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:12px}
.material-card{min-width:0;overflow:hidden;border:1px solid #e0eaeb;border-radius:16px;background:#fff;box-shadow:0 5px 18px rgba(35,76,82,.04);transition:transform .18s ease,box-shadow .18s ease}
.material-card:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(35,76,82,.09)}
.material-preview,.material-file-art{aspect-ratio:3/4;height:auto;display:grid;place-items:center;background:linear-gradient(135deg,#eaf7f8,#f7f8f3);overflow:hidden}
.material-preview--dark{background:#24383d}
.material-preview img{width:100%;height:100%;object-fit:contain;padding:10px;transition:transform .2s ease}
.material-preview:hover img{transform:scale(1.035)}
.material-file-art{background:linear-gradient(135deg,#f3eef8,#f7f8f3)}
.material-file-art span{display:grid;place-items:center;min-width:68px;height:68px;padding:0 10px;border:1px solid #d7e8e9;border-radius:20px;background:#fff;color:#236f7b;font-size:17px;font-weight:900;letter-spacing:.04em;box-shadow:0 8px 18px rgba(35,76,82,.08)}
.material-card-body{display:flex;min-height:190px;flex-direction:column;padding:12px 12px 11px}
.material-meta{display:flex;justify-content:space-between;gap:6px;align-items:center;color:#74868b;font-size:10px;font-weight:800}
.material-category{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#287480}
.material-card h3{display:-webkit-box;min-height:38px;margin:9px 0 5px;overflow:hidden;font-size:14px;line-height:1.35;font-weight:850;overflow-wrap:anywhere;-webkit-box-orient:vertical;-webkit-line-clamp:2}
.material-card h3 a:hover,.material-actions a:hover{text-decoration:underline;text-underline-offset:3px}
.material-path{display:-webkit-box;min-height:31px;margin:0;overflow:hidden;color:#718388;font-size:10px;line-height:1.45;overflow-wrap:anywhere;-webkit-box-orient:vertical;-webkit-line-clamp:2}
.material-actions{display:flex;justify-content:space-between;gap:6px;align-items:center;margin-top:auto;padding-top:9px}
.material-actions a{display:inline-flex;min-height:32px;align-items:center;color:#236f7b;font-size:11px;font-weight:850;white-space:nowrap}
.material-dropbox{padding:0 9px;border:1px solid #dce9ea;border-radius:999px;background:#f8fbfb}
.materials-empty{margin:0;padding:35px 20px;border:1px dashed #bdd7da;border-radius:18px;background:rgba(255,255,255,.65);text-align:center;color:#60757a}
.materials-status{padding:28px;border-radius:16px;background:#fff;color:#60757a}
@media(max-width:1350px){.materials-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:1050px){.materials-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.materials-heading{gap:28px}.materials-guide-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){.materials-section{padding-top:72px;padding-bottom:78px}.materials-heading{grid-template-columns:1fr;gap:12px;margin:14px 0 22px}.materials-heading h2{font-size:clamp(38px,11vw,48px)}.materials-heading>p{font-size:16px}.materials-note{display:block;padding:15px 16px;font-size:13px}.materials-guide{margin:20px 0 23px;padding:16px;border-radius:16px}.materials-guide-heading{display:grid;gap:8px;margin-bottom:12px}.materials-guide-heading h3{font-size:22px}.materials-guide-heading>p{font-size:12px}.materials-guide-grid{grid-template-columns:1fr;gap:8px}.materials-guide-grid article{padding:13px}.materials-guide-grid h4{font-size:15px}.materials-guide-grid p{font-size:12px}.materials-toolbar{grid-template-columns:1fr;gap:12px;margin-top:21px}.materials-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.material-card{border-radius:14px}.material-preview,.material-file-art{height:auto}.material-preview img{padding:8px}.material-file-art span{min-width:58px;height:58px;font-size:15px}.material-card-body{min-height:174px;padding:10px 9px 9px}.material-meta{font-size:9px}.material-card h3{min-height:36px;font-size:13px;margin:8px 0 4px}.material-path{font-size:9px;min-height:27px}.material-actions{padding-top:7px}.material-actions a{font-size:10px;min-height:29px}.material-dropbox{padding:0 7px}}
@media(max-width:420px){.materials-grid{grid-template-columns:1fr;gap:11px}.material-card{display:grid;grid-template-columns:112px minmax(0,1fr);border-radius:15px}.material-preview,.material-file-art{height:100%;min-height:152px}.material-preview img{padding:7px}.material-file-art span{min-width:56px;height:56px}.material-card-body{min-height:152px;padding:11px 12px 9px}.material-meta{flex-direction:row;align-items:center;font-size:10px}.material-card h3{min-height:0;font-size:14px;margin:8px 0 4px}.material-path{min-height:0;font-size:10px}.material-actions{padding-top:5px}.material-actions a{min-height:28px;font-size:10px}}
@media(max-width:350px){.material-card{grid-template-columns:96px minmax(0,1fr)}.material-card-body{padding-left:9px;padding-right:8px}}
@media(prefers-reduced-motion:reduce){.material-card,.material-preview img{transition:none}}