@import url("https://fonts.googleapis.com/css2?family=Comfortaa:wght@500;600;700&family=Permanent+Marker&family=Nunito+Sans:wght@800;900;1000&display=swap");
.oa-archive{--blue:#2589d8;--blue-deep:#1873bd;--green:#78b82a;--turq:#15b9c9;--orange:#f0a12d;--ink:#304b61;--muted:#6d8090;--line:#dce8ef;--pale:#f4fbff}
.oa-archive,.oa-archive *,.oa-archive *::before,.oa-archive *::after{box-sizing:border-box}
.oa-archive button,.oa-archive input,.oa-archive select{font:inherit}.oa-archive button{cursor:pointer}.oa-archive{max-width:1140px;margin:24px auto;padding:0 20px}
.oa-topbar{display:flex;gap:18px;align-items:center;justify-content:space-between;margin-bottom:16px}.oa-brand{display:flex;align-items:center;gap:12px;min-width:0}.oa-brand img{width:150px;height:72px;object-fit:contain}.oa-brand-divider{height:44px;width:1px;background:#dce7ec}.oa-brand-caption{display:inline-block;font-family:"Permanent Marker","Comic Sans MS",cursive !important;font-size:25px;letter-spacing:-.25px;color:#e15353;font-weight:400;text-transform:none;line-height:1.22;max-width:270px;transform:rotate(-2deg);-webkit-text-stroke:.75px #222;text-shadow:1.5px 1.5px 0 #222,3px 3px 0 rgba(0,0,0,.12);paint-order:stroke fill}.badge{display:inline-block;border-radius:99px;padding:7px 12px;background:#e4f6d7;color:#448322;font-size:12px;font-weight:800}.oa-top-actions{display:flex;gap:8px;flex-wrap:wrap}.oa-btn{border:0;border-radius:11px;padding:10px 15px;font-weight:750;transition:.18s ease}.oa-btn:hover{transform:translateY(-1px)}.oa-btn-blue{background:var(--blue);color:#fff;box-shadow:0 4px 10px #2589d826}.oa-btn-light{background:#fff;color:var(--blue);border:1px solid #c9e5f7}.oa-btn-green{background:#e7f6dc;color:#407d21;border:1px solid #d5ecc3}
.oa-hero{display:grid;grid-template-columns:minmax(0,1fr) 260px;align-items:center;gap:24px;min-height:260px;padding:30px 34px;border-radius:25px;border:1px solid #d3eee4;background:linear-gradient(115deg,#eefaff 0%,#f2ffea 100%);overflow:hidden}.oa-hero-copy{min-width:0}.oa-hero h1{margin:12px 0 10px;color:var(--blue);font-size:clamp(32px,4vw,46px);line-height:1.12;letter-spacing:-.03em}.oa-hero p{font-size:17px;color:#546e81;max-width:660px;margin:0 0 17px}.oa-hero-check{display:inline-flex;align-items:center;gap:8px;border:1px solid #d3ebf1;background:#fff;padding:10px 15px;border-radius:13px;color:#1883a1;font-weight:750;font-size:13px}.oa-mascot{align-self:stretch;display:flex;align-items:center;justify-content:center;min-width:0}.oa-mascot img{display:block;width:100%;max-height:245px;object-fit:contain;filter:drop-shadow(0 8px 16px #0b719a16)}
.oa-section-head{margin:32px 0 17px}.oa-section-head h2{margin:0 0 4px;color:#1c5f9e;font-size:30px;letter-spacing:-.02em}.oa-section-head p{margin:0;color:var(--muted);font-size:15px}.oa-filters{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin:0 0 16px}.oa-filter{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:45px;padding:10px 16px;border-radius:12px;border:1px solid #d5e5ef;background:#fff;color:#38576d;font-weight:800}.oa-filter.active{background:var(--blue);border-color:var(--blue);color:#fff;box-shadow:0 4px 10px #2589d826}.oa-filter .oa-tiny-icon{display:grid;place-items:center;width:26px;height:26px;border-radius:8px;background:#ffffff31;font-size:16px}.oa-subject{display:flex;align-items:center;gap:10px;margin-left:auto;color:#536d81;font-weight:800}.oa-subject select{min-width:172px;min-height:45px;padding:10px 13px;border:1px solid #cfe2ee;border-radius:12px;background:#fff;color:#344e63;font-weight:750}
.oa-class-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px;margin:0 0 22px}.oa-class-card{position:relative;display:flex;align-items:center;gap:16px;width:100%;min-height:122px;padding:20px 22px;text-align:left;border:2px solid #cce7fb;border-radius:18px;background:#eff8ff;color:#237bb4;box-shadow:0 4px 14px #234b6009;transition:transform .18s,box-shadow .18s,border-color .18s}.oa-class-card:hover{transform:translateY(-2px);box-shadow:0 10px 22px #234b6014}.oa-class-card.active{border-color:var(--blue);box-shadow:0 0 0 3px #2589d81b,0 8px 18px #234b6011}.oa-class-card[data-grade="6"]{background:#f2fae9;border-color:#d6ecc5;color:#508d24}.oa-class-card[data-grade="6"].active{border-color:var(--green);box-shadow:0 0 0 3px #78b82a20,0 8px 18px #234b6011}.oa-class-card[data-grade="7"]{background:#edfbfb;border-color:#c5eeee;color:#078b9b}.oa-class-card[data-grade="7"].active{border-color:var(--turq);box-shadow:0 0 0 3px #15b9c920,0 8px 18px #234b6011}.oa-class-card[data-grade="8"]{background:#fff8ec;border-color:#f5dfb6;color:#ad6a0c}.oa-class-card[data-grade="8"].active{border-color:var(--orange);box-shadow:0 0 0 3px #f0a12d20,0 8px 18px #234b6011}.oa-class-num{display:grid;place-items:center;flex:0 0 58px;width:58px;height:58px;border-radius:17px;background:#dff1ff;color:#2589d8;font-size:28px;font-weight:900}.oa-class-card[data-grade="6"] .oa-class-num{background:#e2f3cc;color:#538e25}.oa-class-card[data-grade="7"] .oa-class-num{background:#d8f5f4;color:#078b9b}.oa-class-card[data-grade="8"] .oa-class-num{background:#ffedcc;color:#ad6a0c}.oa-class-copy{display:flex;flex-direction:column;gap:3px}.oa-class-copy strong{font-size:22px;line-height:1.25}.oa-class-copy small{font-size:13px;font-weight:700;opacity:.9}.oa-list-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:25px 0 12px}.oa-list-head h3{margin:0;color:#226caa;font-size:23px}.oa-count{font-size:12px;font-weight:800;color:#53738b;background:#edf6fb;border:1px solid #d8eaf4;border-radius:99px;padding:6px 10px}.oa-exam-list{display:grid;gap:13px}.oa-exam-card{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:18px;border:1px solid #dce8ee;border-radius:17px;background:#fff;padding:20px 22px;box-shadow:0 4px 14px #234b6008}.oa-exam-main{display:flex;align-items:flex-start;gap:14px}.oa-exam-icon{display:grid;place-items:center;flex:0 0 54px;height:54px;border-radius:14px;background:#e4f4ff;color:#2589d8}.oa-exam-icon svg{display:block;width:31px;height:31px}.oa-exam-info{flex:1;min-width:0}.oa-exam-title{margin:0 0 7px;color:#263f53;font-size:20px;line-height:1.4}.oa-meta-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-items:stretch;gap:8px;width:100%;margin:0 0 9px;color:#64798a;font-size:14px}.oa-meta-tile{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:2px;min-width:0;min-height:54px;padding:8px 12px;border-radius:10px;border:1px solid;line-height:1.35}.oa-meta-label{font-size:10px;font-weight:900;letter-spacing:.55px;text-transform:uppercase;opacity:.82}.oa-meta-value{font-size:14px;font-weight:850;overflow-wrap:anywhere}.oa-scenario{background:#e6f6dd;border-color:#d4ecc6;color:#398222}.oa-added{background:#e5f5ff;border-color:#c6e6f7;color:#1c6d9c}.meta-dot{color:#b6c5cd}.oa-exam-year{display:block;width:100%;margin:1px 0 9px;padding:7px 11px;border-radius:9px;background:#fff0f0;border:1px solid #f5cccc;color:#c4313d;font-size:14px;font-weight:850;line-height:1.45}.oa-exam-actions{display:flex;flex-direction:column;align-items:stretch;justify-content:center;gap:9px;min-width:190px;max-width:230px;margin-top:0}.oa-exam-actions .oa-btn,.oa-exam-actions a{display:inline-flex;align-items:center;justify-content:center;text-align:center;text-decoration:none;white-space:normal;line-height:1.35}.oa-exam-actions .oa-btn-answer{background:#e7f6dc;color:#407d21;border:1px solid #d5ecc3}.oa-exam-actions .oa-btn-answer:hover{background:#d9efca}.oa-exam-actions .oa-btn-answer:disabled{opacity:.58;cursor:not-allowed;transform:none;box-shadow:none}.oa-exam-actions .oa-btn-blue:disabled{opacity:.65;cursor:not-allowed;transform:none;box-shadow:none}.oa-answer-help{max-width:230px;margin-top:2px;color:#718697;font-size:11px;line-height:1.5}.oa-empty{padding:34px 22px;border:1px dashed #bcdfea;border-radius:18px;background:#f5fbff;text-align:center}.oa-empty-mark{display:inline-grid;place-items:center;width:43px;height:43px;margin-bottom:9px;border-radius:13px;background:#e2f4ff;color:#2589d8;font-size:21px;font-weight:900}.oa-empty h3{margin:0 0 7px;color:#2589d8;font-size:21px}.oa-empty p{max-width:620px;margin:0 auto;color:#627b8e;font-size:14px;line-height:1.7}.oa-demo-note{margin:14px 0 0;text-align:center;font-size:11px;color:#80909b}
.oa-admin-panel{margin-top:24px;border:1px solid #dce8ef;border-radius:19px;background:#fff;padding:24px;display:none}.oa-admin-panel.open{display:block}.oa-admin-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:14px}.oa-admin-top h2{margin:0;color:#1c609b;font-size:24px}.notice{padding:12px 14px;border:1px solid #f3dfae;border-radius:10px;background:#fff9e9;color:#79571b;font-size:13px;margin-bottom:17px}.oa-form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.oa-field{display:flex;flex-direction:column;gap:6px}.oa-field label{color:#465f72;font-size:13px;font-weight:800}.oa-field input,.oa-field select{min-height:44px;padding:10px 12px;border:1px solid #cfdee7;border-radius:10px;background:#fff;color:#314d61;width:100%}.oa-field.full{grid-column:1/-1}.oa-form-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:16px;flex-wrap:wrap}.oa-tiny-help{color:#7a8c99;font-size:11px;margin-top:12px}.oa-toast{position:fixed;right:20px;bottom:20px;max-width:360px;padding:13px 16px;border-radius:12px;background:#214b67;color:#fff;box-shadow:0 8px 25px #0002;display:none;z-index:99}.oa-toast.show{display:block}
@media(max-width:760px){.oa-archive{padding:0 13px;margin:13px auto}.oa-topbar{align-items:flex-start}.oa-brand img{width:115px;height:62px}.oa-brand-caption{font-size:17px;max-width:180px;-webkit-text-stroke:.55px #222;text-shadow:1px 1px 0 #222,2px 2px 0 rgba(0,0,0,.10)}.oa-hero{grid-template-columns:minmax(0,1fr) 145px;padding:22px 19px;gap:8px;min-height:220px}.oa-hero h1{font-size:32px}.oa-hero p{font-size:14px}.oa-mascot img{max-height:170px}.oa-section-head h2{font-size:26px}.oa-subject{margin-left:0;width:100%;justify-content:space-between}.oa-subject select{flex:1;max-width:230px}.oa-class-card{min-height:104px;padding:14px 12px;gap:10px}.oa-class-num{flex-basis:43px;width:43px;height:43px;border-radius:12px;font-size:22px}.oa-class-copy strong{font-size:17px}.oa-class-copy small{font-size:11px}.oa-exam-card{grid-template-columns:minmax(0,1fr);gap:14px;padding:16px}.oa-exam-title{font-size:17px}.oa-meta-tile{min-height:50px;padding:8px 9px}.oa-meta-value{font-size:13px}.oa-meta-label{font-size:9px}.oa-exam-year{font-size:13px}.oa-exam-actions{flex-direction:column;align-items:stretch;min-width:0;max-width:none;width:100%;margin-top:0}.oa-exam-actions .oa-btn,.oa-exam-actions a{width:100%;flex:1}.oa-form-grid{grid-template-columns:1fr}.oa-field.full{grid-column:auto}}
@media(max-width:430px){.oa-brand img{width:95px;height:55px}.oa-brand-caption{font-size:13px;max-width:145px;text-shadow:1.5px 1.5px 0 #2589d8,3px 3px 0 rgba(21,185,201,.2)}.oa-brand-divider{height:35px}.oa-top-actions{flex-direction:column}.oa-top-actions .oa-btn{font-size:12px;padding:8px 10px}.oa-hero{grid-template-columns:1fr;}.oa-mascot{position:absolute;right:20px;top:115px;width:110px;opacity:.95}.oa-hero{position:relative;padding-right:125px;min-height:250px}.oa-hero-copy{position:relative;z-index:1}.oa-hero h1{font-size:28px}.oa-hero p{font-size:13px}.oa-hero-check{font-size:11px;padding:8px 10px}.oa-class-grid{gap:8px}.oa-class-card{min-height:94px;padding:10px 8px;gap:8px;border-radius:13px}.oa-class-num{flex-basis:36px;width:36px;height:36px;font-size:20px}.oa-class-copy strong{font-size:14px}.oa-class-copy small{font-size:10px}.oa-exam-main{gap:10px}.oa-exam-icon{flex-basis:42px;height:42px;font-size:20px}.oa-exam-actions .oa-btn{width:100%;flex:1}.oa-list-head h3{font-size:19px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important}} .oa-hero{grid-template-columns:minmax(220px,310px) minmax(0,1fr)!important;align-items:center!important;gap:clamp(18px,3vw,42px)!important;min-height:300px!important;padding:24px clamp(22px,3vw,40px)!important;}
.oa-mascot{grid-column:1;grid-row:1;align-self:center!important;justify-self:center;width:100%;}
.oa-mascot img{width:100%!important;max-height:280px!important;filter:drop-shadow(0 11px 17px rgba(18,112,134,.17))!important;}
.oa-hero-copy{grid-column:2;grid-row:1;position:relative;z-index:1;display:flex;align-items:center;justify-content:center;min-height:230px!important;padding:28px 32px;isolation:isolate;}
.oa-hero-copy::before{display:none!important;content:none!important;}
.oa-hero .oa-slogan{font-family:"Comfortaa","Arial Rounded MT Bold",Arial,sans-serif!important;color:#78b82a!important;font-size:clamp(36px,4.2vw,56px)!important;font-weight:700!important;line-height:1.1!important;letter-spacing:-.045em!important;margin:0!important;max-width:100%;overflow-wrap:normal;text-align:center;-webkit-text-stroke:.35px #27401a;paint-order:stroke fill;text-shadow:1px 2px 0 rgba(0,0,0,.10),0 4px 10px rgba(36,79,31,.08);transform:rotate(-3deg);}
@media(max-width:760px){
.oa-hero{grid-template-columns:minmax(155px,34%) minmax(0,1fr)!important;min-height:230px!important;gap:10px!important;padding:17px 15px!important;}
.oa-mascot img{max-height:205px!important;}
.oa-hero-copy{min-height:180px!important;padding:18px 13px;}
.oa-hero .oa-slogan{font-size:clamp(27px,4.8vw,38px)!important;line-height:1.13!important;}
}
@media(max-width:430px){
.oa-hero{grid-template-columns:minmax(92px,31%) minmax(0,1fr)!important;min-height:180px!important;gap:4px!important;padding:13px 9px!important;}
.oa-mascot{position:static!important;grid-column:1;grid-row:1;width:100%!important;opacity:1!important;}
.oa-mascot img{max-height:155px!important;width:100%!important;}
.oa-hero-copy{grid-column:2;grid-row:1;min-height:145px!important;padding:13px 7px;}
.oa-hero .oa-slogan{font-size:clamp(20px,6vw,27px)!important;line-height:1.16!important;letter-spacing:-.045em!important;}
.oa-hero-copy::before{display:none!important;}
} .oa-exam-actions{transform:translateY(15px);gap:4px!important;}
.oa-exam-actions .oa-btn-answer{background:#f0a12d!important;color:#fff!important;border:1px solid #df8e19!important;}
.oa-exam-actions .oa-btn-answer:hover{background:#e39220!important;}
.oa-exam-actions .oa-btn-answer:disabled{opacity:1!important;cursor:not-allowed;}
@media(max-width:760px){.oa-exam-actions{transform:none;gap:9px!important;}} .oa-archive{position:relative;isolation:isolate;max-width:1140px;margin:24px auto;padding:0 20px;color:#304b61;font-family:Arial,Helvetica,sans-serif;line-height:1.55}
.oa-archive::before{content:"";position:absolute;z-index:-1;top:0;bottom:0;left:50%;width:100vw;transform:translateX(-50%);background:#f6f9fb;pointer-events:none}
.oa-archive .oa-logo{width:150px!important;height:72px!important;max-width:45vw;object-fit:contain;display:block}
.oa-archive .oa-filter{appearance:none;-webkit-appearance:none;background:#fff!important;color:#38576d!important;border:1px solid #d5e5ef!important;box-shadow:none!important}
.oa-archive .oa-filter:hover,.oa-archive .oa-filter:focus,.oa-archive .oa-filter:active{background:#fff!important;color:#38576d!important;border-color:#d5e5ef!important;}
.oa-archive .oa-filter.active,.oa-archive .oa-filter.active:hover,.oa-archive .oa-filter.active:focus,.oa-archive .oa-filter.active:active{background:#2589d8!important;border-color:#2589d8!important;color:#fff!important;box-shadow:0 4px 10px #2589d826!important}
.oa-archive .oa-class-card{appearance:none;-webkit-appearance:none;font-family:inherit;transition:transform .18s,box-shadow .18s,border-color .18s}
.oa-archive .oa-class-card:hover{transform:translateY(-2px);box-shadow:0 10px 22px #234b6014}
.oa-archive .oa-class-card[data-grade="5"]{background:#eff8ff!important;border-color:#cce7fb!important;color:#237bb4!important}
.oa-archive .oa-class-card[data-grade="6"]{background:#f2fae9!important;border-color:#d6ecc5!important;color:#508d24!important}
.oa-archive .oa-class-card[data-grade="7"]{background:#edfbfb!important;border-color:#c5eeee!important;color:#078b9b!important}
.oa-archive .oa-class-card[data-grade="8"]{background:#fff8ec!important;border-color:#f5dfb6!important;color:#ad6a0c!important}
.oa-archive .oa-class-card[data-grade="5"].active{border-color:#2589d8!important;box-shadow:0 0 0 3px #2589d81b,0 8px 18px #234b6011!important}
.oa-archive .oa-class-card[data-grade="6"].active{border-color:#78b82a!important;box-shadow:0 0 0 3px #78b82a20,0 8px 18px #234b6011!important}
.oa-archive .oa-class-card[data-grade="7"].active{border-color:#15b9c9!important;box-shadow:0 0 0 3px #15b9c920,0 8px 18px #234b6011!important}
.oa-archive .oa-class-card[data-grade="8"].active{border-color:#f0a12d!important;box-shadow:0 0 0 3px #f0a12d20,0 8px 18px #234b6011!important}
.oa-archive .oa-class-card:focus,.oa-archive .oa-class-card:active{outline:none}
.oa-archive .oa-btn{appearance:none;-webkit-appearance:none;display:inline-flex;align-items:center;justify-content:center;text-align:center;text-decoration:none!important;white-space:normal;line-height:1.35;padding:10px 15px;border:0;border-radius:11px;font-family:inherit;font-size:16px;font-weight:750;transition:.18s ease;cursor:pointer}
.oa-archive .oa-btn:hover{transform:translateY(-1px)}
.oa-archive .oa-btn-blue,.oa-archive .oa-btn-blue:hover,.oa-archive .oa-btn-blue:focus,.oa-archive .oa-btn-blue:active{background:#2589d8!important;color:#fff!important;box-shadow:0 4px 10px #2589d826!important}
.oa-archive .oa-btn-answer,.oa-archive .oa-btn-answer:focus,.oa-archive .oa-btn-answer:active{background:#f0a12d!important;color:#fff!important;border:1px solid #df8e19!important}
.oa-archive .oa-btn-answer:hover{background:#e39220!important;color:#fff!important}
.oa-archive .oa-btn-blue.is-disabled{opacity:.65!important;cursor:not-allowed;transform:none;box-shadow:none!important}
.oa-archive .oa-btn-answer.is-disabled{opacity:1!important;cursor:not-allowed;transform:none;box-shadow:none!important}
.oa-archive .oa-subject select{min-width:172px;min-height:45px;padding:10px 13px;border:1px solid #cfe2ee;border-radius:12px;background:#fff;color:#344e63;font-weight:750}
.oa-archive .oa-exam-actions{margin-top:0;transform:translateY(15px);gap:4px!important}
.oa-archive .oa-meta-row{margin:0 0 9px}
.oa-archive .oa-exam-actions .oa-btn,.oa-archive .oa-exam-actions a{width:auto;flex:initial}
@media(max-width:760px){
.oa-archive{padding:0 13px;margin:13px auto}
.oa-archive .oa-logo{width:115px!important;height:62px!important}
.oa-archive .oa-exam-actions{transform:none;gap:9px!important;width:100%;min-width:0;max-width:none}
.oa-archive .oa-exam-actions .oa-btn,.oa-archive .oa-exam-actions a{width:100%;flex:1}
}
@media(max-width:430px){.oa-archive .oa-logo{width:95px!important;height:55px!important}} .oa-archive .oa-btn-light,.oa-archive .oa-btn-light:hover,.oa-archive .oa-btn-light:focus,.oa-archive .oa-btn-light:active{background:#fff!important;color:#2589d8!important;border:1px solid #c9e5f7!important;box-shadow:none!important}
.oa-archive .oa-top-actions .oa-btn-blue,.oa-archive .oa-top-actions .oa-btn-blue:hover,.oa-archive .oa-top-actions .oa-btn-blue:focus,.oa-archive .oa-top-actions .oa-btn-blue:active{background:#2589d8!important;color:#fff!important;box-shadow:0 4px 10px #2589d826!important} .oa-archive .oa-exam-card[hidden],.oa-archive .oa-filter-empty[hidden],.oa-archive [hidden]{display:none!important} .oa-exam-title-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:0 0 7px}
.oa-exam-title-row .oa-exam-title{margin:0}
.oa-view-count{display:inline-flex;align-items:center;justify-content:center;gap:6px;flex:0 0 auto;min-height:34px;padding:4px 10px;border-radius:10px;background:#e6f9fb;border:1px solid #bdeef2;color:#078da0;font-size:20px;font-weight:900;line-height:1.1;font-variant-numeric:tabular-nums}
.oa-view-count svg{display:block;width:18px;height:18px;flex:0 0 18px}
.oa-view-count-number{display:inline-block}
@media(max-width:760px){.oa-exam-title-row{gap:7px}.oa-view-count{min-height:29px;padding:4px 8px;font-size:17px;border-radius:9px}.oa-view-count svg{width:16px;height:16px;flex-basis:16px}}