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b{display:block;font-weight:600;line-height:1.2}.rail-ai small{font-size:.84rem;opacity:.75}.ring{margin-left:auto;width:46px;height:26px;border-radius:999px;background:#111113;position:relative;flex:none}.ring:after{content:"";position:absolute;top:3px;right:3px;width:20px;height:20px;border-radius:50%;background:#fff}.rail-ai a{background:#fff;color:#111113;border-radius:999px;padding:9px 14px;text-decoration:none;display:flex;justify-content:space-between;align-items:center;font-size:.9rem;font-weight:500}.rail-user{display:flex;gap:12px;align-items:center;background:var(--sunk);border-radius:18px;padding:10px 12px;text-decoration:none;color:var(--ink)}.avatar{width:42px;height:42px;border-radius:50%;background:var(--primary);color:var(--on-primary);display:grid;place-items:center;font-weight:600;font-size:.85rem;flex:none}.rail-user b{display:block;font-weight:600;line-height:1.2}.rail-user small{color:var(--muted);font-size:.84rem}.rail-user 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900px){.app{grid-template-columns:minmax(0,1fr);margin:0;border-radius:0;padding:0 12px calc(84px + env(safe-area-inset-bottom,0px));gap:12px;min-height:100vh;min-height:100dvh;background:var(--paper)}.mbar{display:flex;position:sticky;top:env(safe-area-inset-top,0px);z-index:45;margin:0 -12px;padding:10px 12px;gap:10px;align-items:center;background:color-mix(in srgb,var(--paper) 88%,transparent);-webkit-backdrop-filter:saturate(1.4) blur(14px);backdrop-filter:saturate(1.4) blur(14px)}.rail{position:fixed;z-index:80;top:0;left:0;bottom:0;height:auto;width:min(320px,86vw);border-radius:0 var(--r-xl) var(--r-xl) 0;padding:calc(18px + env(safe-area-inset-top,0px)) 14px calc(18px + env(safe-area-inset-bottom,0px));transform:translate(-104%);transition:transform .28s cubic-bezier(.2,.8,.2,1),visibility 0s linear .28s;visibility:hidden;box-shadow:var(--shadow-pop);overflow-y:auto}.drawer-open .rail{transform:none;visibility:visible;transition:transform .28s 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button[aria-pressed=true]{background:var(--primary);color:var(--on-primary)}.card{background:var(--sunk);border-radius:var(--r-lg);padding:20px}.card-tight{padding:14px 16px}.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}.tile{display:flex;flex-direction:column;gap:8px;background:var(--sunk);border-radius:var(--r-lg);padding:18px;text-decoration:none;color:var(--ink);min-width:0;transition:background .15s}.tile:hover{background:var(--sunk-2)}.tile-top{display:flex;justify-content:space-between;align-items:center;gap:8px}.tile-t{font-family:var(--f-display);font-weight:600;font-size:1.05rem;line-height:1.3;letter-spacing:-.01em}.tile-th{color:var(--muted);font-size:.9rem}.tile-ic{width:42px;height:42px;border-radius:50%;background:var(--surface);display:grid;place-items:center}.badge{display:inline-flex;align-items:center;gap:4px;font-size:.78rem;font-weight:500;padding:3px 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4px 14px}hr.sep{border:0;border-top:1px solid var(--line);margin:0}.task{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-top:1px solid var(--line)}.task:first-child{border-top:0}.card .task{border-top-color:var(--sunk-2)}.task input{width:20px;height:20px;margin-top:2px;accent-color:var(--ink);flex:none}.task a{text-decoration:none}.task a:hover{text-decoration:underline}.task.is-done .task-t{color:var(--muted);text-decoration:line-through}.bento{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr) minmax(0,.86fr);grid-template-areas:"hero over side" "table table side";gap:16px;align-items:start}.b-hero{grid-area:hero}.b-over{grid-area:over}.b-side{grid-area:side;display:flex;flex-direction:column;gap:16px}.b-table{grid-area:table}@media (max-width: 1320px){.bento{grid-template-columns:minmax(0,1fr) minmax(0,1fr);grid-template-areas:"hero over" "table table" "side side"}.b-side{display:grid;grid-template-columns:1fr 1fr}}@media (max-width: 760px){.bento{grid-template-columns:minmax(0,1fr);grid-template-areas:"hero" "over" "side" "table"}.b-side{display:flex}}.box{background:var(--surface);border-radius:var(--r-xl);padding:22px;display:flex;flex-direction:column;gap:16px;min-width:0}.box-h{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;flex-wrap:wrap}.box-h h2{font-size:1.55rem}.arrow-btn{width:44px;height:44px;border-radius:50%;background:var(--sunk);display:grid;place-items:center;color:var(--ink);text-decoration:none;flex:none}.arrow-btn:hover{background:var(--primary);color:var(--on-primary)}.b-hero{padding:10px}.hero-img{position:relative;height:290px;border-radius:var(--r-lg);overflow:hidden;background:linear-gradient(180deg,var(--sky-1),var(--sky-2) 78%)}.hero-img .float{position:absolute;font-family:var(--f-display);font-size:1.35rem;padding:.25em .7em;box-shadow:0 8px 20px #1111131f}.hero-img .sun{position:absolute;right:18%;top:22%;width:90px;height:90px;border-radius:50%;background:var(--lime);opacity:.9}.hero-tag{position:absolute;top:14px;display:inline-flex;gap:8px;align-items:center;border-radius:999px;padding:7px 14px;font-weight:500;font-size:.92rem}.hero-tag.l{left:14px;background:#fff;color:#111113}.hero-tag.r{right:14px;background:var(--orange);color:#111113}.hero-tag.r:before{content:"";width:8px;height:8px;border-radius:50%;background:#111113}.hero-sheet{position:relative;margin:-132px 12px 4px;background:var(--surface);border-radius:var(--r-lg);padding:18px;display:flex;flex-direction:column;gap:14px;box-shadow:var(--shadow)}.hero-sheet h3{font-size:1.35rem}.prog{display:flex;gap:14px;align-items:center}.prog .bar{flex:1;height:10px}.prog b{font-family:var(--f-mono);font-weight:500}.cells{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid var(--line);border-radius:var(--r-md)}.cells>div{padding:10px 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a{display:flex;flex-direction:column;gap:6px;text-decoration:none;color:var(--ink);min-width:0}.pipe-bar{height:38px;border-radius:12px;background:var(--sunk-2);overflow:hidden}.pipe-bar i{display:block;height:100%;background:var(--lime);border-radius:12px;min-width:6px}.pipe-row b{font-weight:500;font-variant-numeric:tabular-nums}.pipe-row small{color:var(--muted)}.dtable{width:100%;border-collapse:separate;border-spacing:0;font-size:.95rem}.dtable th{background:var(--sunk);text-align:left;font-weight:450;color:var(--muted);padding:12px 14px;white-space:nowrap}.dtable th:first-child{border-radius:14px 0 0 14px}.dtable th:last-child{border-radius:0 14px 14px 0}.dtable td{padding:14px;border-bottom:1px solid var(--line);vertical-align:middle}.dtable tr:last-child td{border-bottom:0}.dtable tbody tr{cursor:pointer}.dtable tbody tr:hover td{background:color-mix(in srgb,var(--sunk) 60%,transparent)}.dtable td b{font-weight:500;display:block;line-height:1.3}.dtable td small{color:var(--muted)}.dtable a{text-decoration:none}.stage{display:inline-block;background:var(--sunk);border-radius:999px;padding:6px 12px;font-weight:500;font-size:.88rem;white-space:nowrap}.prio{display:inline-block;border-radius:999px;padding:5px 12px;font-weight:500;font-size:.86rem;white-space:nowrap}.prio.high{background:var(--bad);color:#fff}.prio.med{background:var(--warn-soft);color:var(--warn)}.prio.ok{background:var(--lime);color:var(--lime-ink)}.b-table .dtable{min-width:760px}.table-f{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:.9rem;flex-wrap:wrap;gap:8px}.night{background:var(--night);color:var(--on-night)}.night .muted{color:var(--night-muted)}.dots{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}.dots li{display:flex;gap:12px;align-items:baseline}.dots li:before{content:"";width:9px;height:9px;border-radius:50%;background:var(--lime);flex:none;transform:translateY(-1px)}.dots li.o:before{background:var(--orange)}.btn-wide{width:100%;min-height:52px;font-size:1.02rem}.gauge-box{padding:12px}.gauge-box .box-h{padding:10px 10px 0}.lime-panel{background:var(--lime);color:var(--lime-ink);border-radius:var(--r-lg);padding:18px;display:flex;flex-direction:column;gap:12px}.gauge{position:relative;width:100%;max-width:260px;margin:0 auto}.gauge svg{width:100%;height:auto;display:block}.gauge line{stroke-width:3.4;stroke-linecap:round}.g-on{stroke:#111113}.g-off{stroke:#11111333}.gauge-n{position:absolute;left:0;right:0;bottom:6px;text-align:center}.gauge-n b{font-family:var(--f-display);font-size:3.2rem;font-weight:600;letter-spacing:-.04em;line-height:1}.gauge-n b sup{font-size:.9rem;font-weight:600;letter-spacing:0}.gauge-n div{font-size:.9rem}.wpill{background:#fff;color:#111113;border-radius:999px;padding:9px 16px;display:flex;justify-content:space-between;gap:10px;font-weight:500}.wpill span:last-child{font-family:var(--f-mono);font-size:.84rem;color:#6b6b72;font-weight:400}.wtiles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.wtiles div{background:#fff;color:#111113;border-radius:var(--r-md);padding:10px 12px;display:flex;flex-direction:column;min-width:0}.wtiles small{color:#6b6b72;font-size:.82rem}.wtiles b{font-weight:500;font-variant-numeric:tabular-nums}.lesson-head{display:grid;grid-template-columns:auto minmax(0,1fr);gap:18px;align-items:start}.lesson-no{width:72px;height:72px;border-radius:var(--r-lg);background:var(--lime);color:var(--lime-ink);display:grid;place-items:center;font-family:var(--f-display);font-weight:600;font-size:2rem;font-variant-numeric:tabular-nums;letter-spacing:-.03em}.section-h{display:flex;gap:10px;align-items:center;font-size:1.3rem}.section-h .ic{width:34px;height:34px;padding:7px;border-radius:50%;background:var(--sunk);color:var(--ink)}.rules{display:flex;flex-direction:column;gap:12px;margin:0;padding:0;list-style:none;counter-reset:r}.rules li{display:grid;grid-template-columns:32px minmax(0,1fr);gap:12px;counter-increment:r}.rules li:before{content:counter(r);width:28px;height:28px;border-radius:50%;background:var(--primary);color:var(--on-primary);display:grid;place-items:center;font-weight:500;font-size:.82rem;font-family:var(--f-mono)}.rules .sv{display:block;margin-top:6px;font-size:1.04rem;line-height:1.9}.tbl-wrap{overflow-x:auto;border-radius:var(--r-lg);background:var(--surface);border:1px solid var(--line);padding:6px}table.tbl{border-collapse:separate;border-spacing:0;width:100%;font-size:.95rem}.tbl caption{text-align:left;padding:10px 12px 8px;font-family:var(--f-display);font-weight:600;caption-side:top}.tbl caption small{display:block;font-family:var(--f-body);font-weight:400;color:var(--muted)}.tbl th,.tbl td{padding:10px 12px;text-align:left;vertical-align:top}.tbl td{border-bottom:1px solid var(--line)}.tbl tr:last-child td{border-bottom:0}.tbl th{font-size:.8rem;color:var(--muted);font-weight:450;background:var(--sunk);white-space:nowrap}.tbl th:first-child{border-radius:12px 0 0 12px}.tbl th:last-child{border-radius:0 12px 12px 0}.examples{display:flex;flex-direction:column;margin:0;padding:6px 20px;list-style:none}.examples li{display:grid;grid-template-columns:30px minmax(0,1fr);gap:12px;padding:12px 0;border-top:1px solid var(--sunk-2);align-items:start}.examples li:first-child{border-top:0}.ex-sv{font-size:1.08rem;line-height:1.9}.ex-th{color:var(--muted);font-size:.92rem}.trick{border-radius:var(--r-lg);padding:22px;background:var(--lime);color:var(--lime-ink);display:grid;grid-template-columns:auto minmax(0,1fr);gap:16px}.trick .eyebrow{color:#11111399}.trick .chip{background:#ffffffb3}.trick-ic{width:48px;height:48px;border-radius:50%;background:#111113;color:var(--lime);display:grid;place-items:center}.trick-ic .ic{width:24px;height:24px}.trick-t{font-family:var(--f-display);font-weight:600;font-size:1.2rem;letter-spacing:-.01em}.trick-sv{margin-top:6px;font-family:var(--f-display);font-size:1.05rem;font-weight:600}.mistakes{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:12px}.mistake{background:var(--sunk);border-radius:var(--r-lg);padding:16px 18px;display:flex;flex-direction:column;gap:6px;min-width:0}.mistake .wrong{color:var(--bad);text-decoration:line-through;text-decoration-thickness:1.5px;display:flex;gap:8px}.mistake .right{color:var(--good);font-weight:600;display:flex;gap:8px}.mistake .wrong .ic,.mistake .right .ic{margin-top:4px}.viz{margin:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:18px;display:flex;flex-direction:column;gap:14px}.viz figcaption{font-size:.92rem;color:var(--muted);border-top:1px solid var(--line);padding-top:12px}.viz figcaption b{color:var(--ink)}.viz svg{width:100%;height:auto;display:block;max-width:100%}.viz text{font-family:var(--f-body);fill:var(--ink)}.train{display:grid;grid-template-columns:repeat(7,minmax(78px,1fr));gap:8px 6px;min-width:600px}.car{position:relative;background:var(--sunk);border-radius:14px 14px 8px 8px;padding:8px 6px 14px;text-align:center;display:flex;flex-direction:column;gap:1px;margin-bottom:10px}.car:before,.car:after{content:"";position:absolute;bottom:-8px;width:14px;height:14px;border-radius:50%;background:var(--ink);border:3px solid var(--surface)}.car:before{left:16%}.car:after{right:16%}.car-n{font-family:var(--f-display);font-weight:600;font-size:1.3rem;line-height:1}.car-l{font-size:.74rem;font-weight:600;line-height:1.2}.car-th{font-size:.7rem;color:var(--muted);line-height:1.2}.car-v{background:var(--cV);color:#fff}.car-v .car-th{color:inherit;opacity:.85}.slot{text-align:center;padding:4px 0;border-bottom:1px dashed var(--line);font-size:.95rem}.slot .dot{color:var(--muted)}.biff-head{display:grid;grid-template-columns:110px minmax(0,1fr);gap:16px;align-items:center}.steak{width:110px;height:auto}.steak .plate{fill:var(--sunk)}.steak .meat{fill:sienna}.steak .fat{fill:none;stroke:#f6d7b8;stroke-width:5;stroke-linecap:round}.steak .bone{fill:#f8eedf}.biff-word{font-family:var(--f-display);font-size:1.3rem;font-weight:500}.biff-word b{color:var(--cV);font-size:1.5rem;font-weight:700}.biff-rows{display:grid;grid-template-columns:auto minmax(0,1fr);gap:10px 14px;align-items:center}.biff-label{font-family:var(--f-mono);font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}.biff-line{font-size:1.05rem;line-height:2.1}.jump{position:relative;display:inline-block}.jump:before{content:"\21b7";position:absolute;top:-1.15em;left:50%;transform:translate(-50%);color:var(--cA);font-weight:700;font-size:1.1em}.lane{border-radius:var(--r-md);padding:12px 14px;display:flex;flex-direction:column;gap:8px}.lane-k{background:color-mix(in srgb,var(--cK-bg) 55%,var(--surface))}.lane-b{background:color-mix(in srgb,var(--cB-bg) 55%,var(--surface))}.lane-a{background:var(--sunk)}.lane-h{font-family:var(--f-display);font-weight:600;display:flex;gap:8px;align-items:center;flex-wrap:wrap}.lane-w{display:flex;flex-wrap:wrap;gap:6px;line-height:1.9}.lane-ex{font-size:1rem;line-height:2.1}.vg{display:grid;grid-template-columns:110px repeat(4,minmax(96px,1fr));min-width:560px;border-radius:var(--r-md);overflow:hidden;background:var(--sunk)}.vg>div{padding:9px 12px;border-top:1px solid var(--surface);font-size:1rem}.vg-h{font-family:var(--f-mono);font-size:.7rem!important;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);background:var(--sunk-2);border-top:0!important}.vg-g{display:flex;flex-direction:column;line-height:1.25}.vg-g small{color:var(--muted);font-size:.75rem}.vg-g.g0{box-shadow:inset 4px 0 0 var(--cS)}.vg-g.g1{box-shadow:inset 4px 0 0 var(--cP)}.vg-g.g2{box-shadow:inset 4px 0 0 var(--cA)}.vg-g.g3{box-shadow:inset 4px 0 0 var(--cT)}.vg-g.g4{box-shadow:inset 4px 0 0 var(--cV)}.vg-note{display:block;color:var(--muted);font-size:.72rem;line-height:1.3}.tl{min-width:620px}.tl-axis{stroke:var(--ink);stroke-width:2.5}.tl-ink{fill:var(--ink)}.tl-now{fill:var(--mark)}.tl-big{font-family:var(--f-display);font-weight:700;font-size:20px}.tl-l{font-family:var(--f-display);font-weight:600;font-size:15px}.tl-s{font-family:var(--f-mono);font-size:11px;fill:var(--muted)!important;text-transform:uppercase;letter-spacing:.05em}.tl-th{font-size:12px;fill:var(--muted)!important}.tl-T{fill:var(--cT)}.tl-V{fill:var(--cV)}.tl-I{fill:var(--cI)}.tl-P{fill:var(--cP)}.tl-arc{fill:none;stroke:var(--cS);stroke-width:3;stroke-dasharray:6 5}.ee-en{fill:var(--cS-bg);stroke:var(--cS);stroke-width:2}.ee-ett{fill:var(--cK-bg);stroke:var(--cK);stroke-width:2}.ee-big{font-family:var(--f-display);font-weight:700;font-size:22px}.ee-w{font-size:14px}.adj{display:grid;grid-template-columns:110px 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.ic{width:26px;height:26px}.timer{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.timer-n{font-family:var(--f-mono);font-size:2rem;font-weight:500;font-variant-numeric:tabular-nums;min-width:5ch}.timer-n.low{color:var(--bad)}.phrase-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:12px}.phrase-group{background:var(--sunk);border-radius:var(--r-lg);padding:18px;display:flex;flex-direction:column;gap:6px;min-width:0}.phrase{display:grid;grid-template-columns:minmax(0,1fr) 30px;gap:8px;align-items:start;padding:8px 0;border-top:1px solid var(--sunk-2)}.phrase:first-of-type{border-top:0}.phrase .sv{font-weight:500}.rec-list{display:flex;flex-direction:column;gap:8px}.rec-list audio{width:100%;max-width:100%}.exambar{position:fixed;right:20px;bottom:calc(20px + env(safe-area-inset-bottom,0px));z-index:60;background:var(--primary);color:var(--on-primary);border-radius:999px;padding:8px 8px 8px 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