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#e4e9dd;border-radius:6px;width:24px;height:24px;display:grid;place-items:center;flex-shrink:0}.option.correct{border-color:#82ab70;background:#edf4e6}.option.wrong{border-color:#c68f72;background:#fbefe8}.explanation{font-size:12px;padding:15px;border-radius:9px;margin-top:14px;background:#edf3e5;color:#698158;line-height:1.9}.lesson-article{font-size:13px;line-height:1.9;white-space:pre-line}.lesson-article h3{margin-bottom:12px}.lesson-article li{margin-bottom:14px}.two-cols{display:grid;grid-template-columns:1fr 1fr;gap:22px}.skill-hero{padding:29px;position:relative;overflow:hidden}.skill-hero h2{font-size:24px;margin:11px 0}.skill-hero p{color:var(--muted);font-size:12px;max-width:75%}.skill-hero .btn{margin-top:20px}.skill-hero svg.decoration{position:absolute;right:24px;top:32px;color:#dfe9d4;width:65px;height:65px}.exercise-list{display:grid;gap:13px;margin-top:20px}
.exam-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.exam-card{padding:22px}.exam-card .exam-top{display:flex;justify-content:space-between;align-items:center}.exam-card .year{font-size:29px;font-weight:500;letter-spacing:-.8px;margin:15px 0 4px}.exam-card .year span{font-size:13px;color:#98a18f;font-weight:400;letter-spacing:0}.exam-card p{font-size:10px;color:#8c9a82}.exam-card footer{display:flex;gap:8px;margin-top:19px}.exam-card footer .btn{flex:1}.exam-workspace{display:grid;grid-template-columns:minmax(0,1fr) 294px;gap:20px;align-items:start}.document-view{background:#e9ece4;border:1px solid #e0e5d8;border-radius:14px;overflow:hidden;min-height:350px}.document-toolbar{display:flex;align-items:center;justify-content:space-between;padding:11px 14px;gap:8px;background:#fff;border-bottom:1px solid var(--line);flex-wrap:wrap}.document-toolbar select{font-size:11px;padding:7px;max-width:50%}.page-controls{display:flex;gap:7px;align-items:center;font-size:10px;color:var(--muted)}.document-image{display:block;width:100%;height:auto;min-height:100px;object-fit:contain}.document-page{max-height:calc(100vh - 240px);overflow:auto;position:relative}.document-page.zoomed .document-image{width:140%;max-width:none}.exam-answer-panel{padding:20px;position:sticky;top:15px}.exam-clock{font-size:29px;font-variant-numeric:tabular-nums;line-height:1.3;margin:10px 0;color:var(--green)}.question-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:7px;max-height:300px;overflow-y:auto;margin:15px 0}.qnum{background:#f4f6ef;border-radius:6px;font-size:10px;height:30px;border:1px solid transparent}.qnum.answered{background:#e3edda;color:#5c7f48}.qnum.active{border-color:var(--green);font-weight:700}.qnum.marked{box-shadow:inset 0 -3px 0 #c79a70}.answer-options{display:flex;gap:7px;margin:13px 0}.answer-options button{flex:1;border:1px solid var(--line);border-radius:8px;height:37px;font-size:12px}.answer-options button.selected{background:var(--green);color:#fff;border-color:var(--green)}.exam-summary{padding:12px 0;font-size:11px;color:var(--muted);border-top:1px solid var(--line)}.exam-action-row{display:flex;gap:7px;margin-top:9px}.exam-action-row .btn{flex:1;padding:9px 7px}.key-input-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;margin:18px 0}.key-input-grid label{font-size:9px;color:var(--muted)}.key-input-grid select{padding:5px;width:100%;font-size:11px}.wrong-card{padding:22px;margin-bottom:15px}.wrong-top{display:flex;gap:10px;align-items:center;margin-bottom:15px;font-size:10px;color:var(--muted)}.wrong-top .text-btn{margin-left:auto}.wrong-card .jp{font-size:18px;line-height:1.9}.wrong-card .answer-line{font-size:12px;margin-top:12px;color:#9e7b62}.wrong-card .answer-line span{color:var(--green);margin-left:15px}.wrong-card .note{font-size:11px;margin-top:12px;white-space:pre-line;color:#8c9981}.wrong-card footer{display:flex;gap:8px;margin-top:15px}.plan-phases{display:grid;grid-template-columns:1.4fr 1fr;gap:18px;margin-bottom:22px}.phase-card{padding:25px}.phase-card h3{font-size:19px;margin:11px 0}.phase-card p{font-size:12px;color:#8c997e}.phase-card .phase-date{font-size:10px;color:#7d926a;letter-spacing:.5px;margin-top:14px}.calendar{display:grid;grid-template-columns:repeat(7,1fr);gap:9px}.calendar-head{font-size:10px;color:var(--muted);text-align:center;padding:8px}.calendar-day{border:1px solid var(--line);border-radius:10px;background:#fff;min-height:85px;padding:11px;font-size:11px;text-align:left}.calendar-day span{display:block;font-size:9px;color:#9aa48f;margin-top:8px}.calendar-day.sprint{background:#f2f5ea}.calendar-day.today{border:2px solid #658e57;padding:10px}.calendar-day.complete{background:#e7efdf}.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.setting-row{margin:15px 0;display:grid;gap:7px}.setting-row label{font-size:11px;color:#849576}.setting-row input{width:100%}.source-list{font-size:11px;line-height:1.9;padding-left:17px;color:#85957a}.source-list a{word-break:break-word}.activity-item{font-size:11px;display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding:13px 0;color:#829276}.file-input{display:none}
.modal-overlay{position:fixed;inset:0;z-index:80;background:#20392d66;backdrop-filter:blur(4px);display:flex;justify-content:center;align-items:center;padding:25px}.modal{background:#fff;max-width:720px;width:100%;max-height:90vh;overflow:auto;border-radius:20px;padding:30px;box-shadow:0 24px 80px #162c2133}.modal.wide{max-width:1000px}.modal-header{display:flex;justify-content:space-between;align-items:start;gap:15px;margin-bottom:20px}.modal-header h2{font-size:21px}.modal-header p{font-size:11px;color:var(--muted);margin-top:5px}.modal-footer{display:flex;justify-content:end;gap:10px;margin-top:23px}.modal label{display:block;font-size:12px;margin-bottom:5px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.form-grid input{width:100%}#toast{position:fixed;bottom:28px;left:50%;transform:translate(-50%,15px);background:var(--green-dark);color:#fff;padding:12px 22px;border-radius:10px;font-size:12px;opacity:0;pointer-events:none;z-index:120;transition:.2s;box-shadow:0 5px 25px #142f2422;max-width:90vw}#toast.visible{opacity:1;transform:translate(-50%,0)}.player{position:fixed;bottom:18px;left:254px;right:25px;z-index:60;background:#fff;border:1px solid #dce5d3;border-radius:17px;box-shadow:0 5px 35px #2b422b15;padding:15px 20px;display:flex;gap:16px;align-items:center;max-width:1350px;margin:auto}.player-label{min-width:140px;font-size:11px}.player-label span{display:block;font-size:9px;color:var(--muted);margin-top:2px}.player audio{flex:1;min-width:0;height:35px}.player-controls{display:flex;gap:7px;align-items:center}.player-controls select{font-size:10px;padding:6px}.player-controls button{font-size:10px;white-space:nowrap;padding:5px}.player-controls button.on{background:var(--mint);border-radius:5px}.audio-notice{font-size:10px;color:var(--muted)}body.has-player .content{padding-bottom:125px}.focus-bar{background:#e5edd9;color:#6f845c;padding:7px 42px;display:flex;align-items:center;gap:12px;font-size:11px}.focus-bar b{font-variant-numeric:tabular-nums;font-weight:500}.focus-bar .text-btn{margin-left:auto}.screen-reader{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(min-width:1500px){.content{padding-top:45px}.hero{min-height:265px;padding:35px 40px}.hero h2{font-size:35px}.hero-art{right:5%;width:250px;height:250px}.task-row{padding:22px 0}.session-card{padding:26px}.timer-ring{margin:25px auto}}
@media(max-width:1200px){.sidebar{width:204px;padding:25px 15px}.main-wrap{margin-left:204px}.content{padding:28px}.topbar{padding:0 28px}.dashboard-grid{grid-template-columns:minmax(0,1fr) 255px;gap:20px}.hero{padding:28px}.hero h2{font-size:25px}.hero-art{right:-35px;opacity:.3}.stat-card{padding:15px}.stat-value{font-size:24px}.learning-layout{grid-template-columns:minmax(0,1fr) 240px}.mini-grid,.grammar-grid,.exam-grid{grid-template-columns:repeat(2,1fr)}.player{left:225px}.exam-workspace{grid-template-columns:minmax(0,1fr) 265px;gap:15px}}
@media(max-width:980px){.dashboard-grid{grid-template-columns:1fr}.dashboard-side{display:grid;grid-template-columns:1fr 1fr;gap:18px}.session-card{grid-row:span 2}.week-card{margin:0}.quote-card{padding:10px}.learning-layout{grid-template-columns:1fr}.learning-layout>aside{display:grid;grid-template-columns:1fr 1fr;gap:15px}.learning-layout>aside .card{margin:0!important}.date-label{display:none}.exam-workspace{grid-template-columns:1fr}.exam-answer-panel{position:static}.question-grid{grid-template-columns:repeat(10,1fr);max-height:170px}.document-page{max-height:650px}.calendar-day{min-height:78px;padding:8px}.player{flex-wrap:wrap;gap:7px}.player-label{min-width:105px}.player-controls{margin-left:auto}.settings-grid{grid-template-columns:1fr}.two-cols{grid-template-columns:1fr}.hero-art{right:5%;opacity:.5}}
@media(max-width:720px){body{font-size:13px}.sidebar{transform:translateX(-100%);transition:.2s;width:230px;box-shadow:20px 0 80px #10271722}.sidebar.open{transform:translateX(0)}.main-wrap{margin-left:0}.topbar{height:62px;padding:0 20px;gap:10px}.breadcrumb{font-size:11px;gap:7px}.mobile-menu{display:grid}.top-actions{gap:7px}.countdown{padding:5px 8px;font-size:9px}.countdown b{font-size:12px}.content{padding:25px 20px 35px}.page-heading{align-items:start;margin-bottom:23px}h1{font-size:23px}.page-heading p{font-size:11px;max-width:280px}.page-heading>.btn{padding:9px 11px;font-size:10px}.hero{min-height:218px;padding:26px 23px}.hero h2{font-size:25px;letter-spacing:.5px}.hero p{max-width:72%;font-size:10px}.hero-art{width:170px;height:170px;right:-35px;top:45px;opacity:.3}.hero .hero-meta{display:none}.hero .btn{font-size:11px}.stat-grid{gap:9px;margin-top:13px}.stat-card{padding:14px 11px;border-radius:12px}.stat-top{gap:5px;font-size:9px}.stat-top svg{width:12px;height:12px}.stat-value{font-size:22px;gap:4px}.stat-value span{font-size:9px}.stat-foot{font-size:8px}.task-list{padding:2px 15px}.task-row{gap:10px;padding:16px 0}.task-number{width:30px;height:30px}.task-info h3{font-size:12px;gap:6px}.task-info p{font-size:9px}.task-time{min-width:36px;font-size:10px}.task-row .btn{font-size:10px;min-width:50px;padding:6px 10px}.task-info h3 .pill{font-size:8px;padding:2px 5px}.dashboard-side{grid-template-columns:1fr 1fr;gap:12px}.session-card{padding:17px 12px}.session-top{font-size:11px}.timer-ring,.timer-ring svg{width:136px;height:136px}.timer-number{font-size:27px}.week-card{padding:16px 12px}.week-heading{font-size:11px}.week-chart{gap:7px}.quote-card p{font-size:13px}.quote-card small{font-size:8px}.milestone{padding:14px;gap:11px;align-items:start}.milestone p{font-size:9px}.milestone .text-btn{display:none}.mini-grid,.grammar-grid,.exam-grid{gap:12px}.card{padding:20px;border-radius:15px}.lesson-card h3{font-size:15px}.lesson-card p{font-size:10px}.lesson-card .day-tag{font-size:9px}.lesson-card{padding:19px}.grammar-card .jp{font-size:19px}.grammar-card .meaning{font-size:11px}.grammar-card .connection{font-size:9px}.flashcard{min-height:345px}.flashcard .word{font-size:43px;letter-spacing:3px}.flashcard .meaning{font-size:15px}.flashcard .reading{font-size:15px}.flashcard .example{font-size:13px}.review-controls{gap:8px}.review-controls .btn{padding:12px 5px;font-size:11px;flex-direction:column;gap:2px}.learning-layout>aside{grid-template-columns:1fr}.toolbar{gap:8px}.tabs{gap:1px}.tab{font-size:10px;padding:7px 10px}.search{min-width:150px}.word-table th,.word-table td{padding:9px 6px;font-size:10px}.word-table .jp{font-size:15px}.word-table .hide-mobile{display:none}.exam-card{padding:17px}.exam-card .year{font-size:25px}.exam-card .year span{font-size:10px}.exam-card footer{flex-direction:column;gap:6px}.question-grid{grid-template-columns:repeat(8,1fr)}.document-toolbar{padding:9px}.document-toolbar select{max-width:54%;font-size:10px}.document-page{max-height:70vh}.plan-phases{grid-template-columns:1fr;gap:12px}.phase-card{padding:20px}.calendar{gap:5px}.calendar-day{min-height:67px;padding:5px;font-size:10px;border-radius:6px}.calendar-day span{font-size:8px;line-height:1.4;word-break:break-word}.calendar-day.today{padding:4px}.calendar-head{font-size:9px;padding:3px}.form-grid{grid-template-columns:1fr}.modal-overlay{padding:12px}.modal{padding:23px;max-height:94vh;border-radius:16px}.modal-header h2{font-size:19px}.quiz-prompt{font-size:16px}.option{font-size:13px;padding:10px}.modal-footer{flex-wrap:wrap}.player{left:10px;right:10px;bottom:9px;padding:12px;gap:7px;border-radius:14px}.player audio{width:calc(100% - 117px);flex:auto}.player-label{font-size:10px;min-width:100px}.player-controls{width:100%;justify-content:space-between}.player-controls .icon-btn{height:27px;width:27px}.focus-bar{padding:7px 20px;gap:8px;font-size:10px}.section-title{margin-top:25px}.key-input-grid{grid-template-columns:repeat(5,1fr)}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
.topbar .mobile-menu{display:none}.brand-sub{font-size:8px;letter-spacing:1.1px}.hero p{font-size:13px}.task-info h3{font-size:14px}.task-info p{font-size:12px}.task-time{font-size:12px}.stat-top{font-size:11px}.stat-foot{font-size:10px}.info-card p,.lesson-card p{font-size:12px}.mini-stat{font-size:12px}.grammar-card .connection{font-size:11px}.exam-card p{font-size:11px}.wrong-card .note{font-size:12px}.source-list{font-size:12px}.notice{font-size:12px}.quote-card small{font-size:10px}.session-card .subtext{font-size:10px}.focus-bar .text-btn{margin-left:0}.focus-bar .text-btn:first-of-type{margin-left:auto}
.immersive .sidebar,.immersive .topbar,.immersive .focus-bar{display:none}.immersive .main-wrap{margin-left:0}.immersive .content{padding-top:94px;max-width:1240px}.immersive-tools{position:fixed;top:0;left:0;right:0;height:62px;border-bottom:1px solid var(--line);background:#f9fbf4f2;backdrop-filter:blur(12px);z-index:65;display:flex;align-items:center;gap:17px;padding:0 30px;color:var(--green);font-size:12px}.immersive-tools .mode-title{margin-right:auto}.immersive-tools .text-btn{color:var(--green)}.immersive .player{left:20px}.page-jump{width:46px;padding:5px!important;text-align:center;font-size:10px!important;border-radius:6px}
@media(max-width:720px){.topbar .mobile-menu{display:grid}.hero p{font-size:11px}.task-info h3{font-size:12px}.task-info p{font-size:10px}.task-time{font-size:11px}.stat-top{font-size:10px}.stat-foot{font-size:9px}.stat-value{font-size:23px}.info-card p,.lesson-card p{font-size:12px}.grammar-card .connection{font-size:11px}.exam-card p{font-size:10px}.notice{font-size:11px}.focus-bar{flex-wrap:wrap}.focus-bar>span:last-of-type{display:none}}
@media(max-width:720px){.immersive-tools{padding:0 15px;gap:11px}.immersive-tools .mode-title{font-size:11px}.immersive-tools .brand-mark{width:30px;height:30px;font-size:16px;border-radius:9px}.immersive-tools .text-btn{font-size:10px}.immersive-tools .hide-mobile{display:none}.document-toolbar select{max-width:36%}.page-controls{gap:5px}.page-controls .icon-btn{height:28px;width:28px}.immersive .content{padding-top:86px}}
:root{--cloud-green:#2e6556}
.sync-badge{display:inline-flex;align-items:center;gap:7px;white-space:nowrap;border:1px solid #dce5da;background:#f6f9f1;color:#54715a;border-radius:20px;padding:7px 11px;font:inherit;font-size:10px;cursor:pointer}
.sync-badge[data-state="syncing"] svg{animation:cloud-turn 1.4s linear infinite}
.sync-badge[data-state="offline"],.sync-badge[data-state="retrying"],.sync-badge[data-state="login-required"],.sync-badge[data-state="account-changed"]{background:#fff7eb;color:#94602b;border-color:#f0e1c9}
.cloud-card{border-color:#cfdcc9!important;background:linear-gradient(145deg,#f5f8ef,#fff)!important}
.cloud-heading{display:flex;gap:14px;align-items:center}.cloud-heading h3{margin:0}.cloud-heading p{font-size:11px;color:var(--cloud-green);margin:5px 0 0}.cloud-mark{display:grid;place-items:center;width:46px;height:46px;background:#e6eedc;border-radius:14px;color:#356450;flex-shrink:0}.cloud-copy{font-size:12px;color:#627067;line-height:1.95;margin:20px 0 14px}.cloud-account{display:flex;align-items:center;gap:8px;font-size:12px;color:#356450;overflow-wrap:anywhere}.cloud-account span{min-width:0}.cloud-detail{font-size:11px;line-height:1.8;color:#7b8275;margin:13px 0 17px;min-height:20px}.cloud-buttons{display:flex;gap:10px}.cloud-buttons a{text-decoration:none}.cloud-buttons .btn{justify-content:center}
@keyframes cloud-turn{to{transform:rotate(360deg)}}
@media(max-width:700px){.sync-badge{padding:7px}.sync-badge span{display:none}.top-actions{gap:7px!important}.cloud-card{padding:23px!important}.breadcrumb>span{display:none}.breadcrumb strong,.countdown{white-space:nowrap}}
@media(prefers-reduced-motion:reduce){.sync-badge[data-state="syncing"] svg{animation:none}}
.pwa-card{background:#fff!important;border-color:#d4dfcc!important}.pwa-icon{border-radius:14px;flex-shrink:0}.pwa-card .cloud-heading p{color:#48735c;font-size:11px}.pwa-card .cloud-heading p[data-state="preparing"]{color:#a3753e}.install-guide{margin-top:17px;font-size:11px;color:#728175;line-height:1.9}.install-guide summary{cursor:pointer;color:#426755}.install-guide p{margin-top:9px}.offline-divider{height:1px;background:var(--line);margin:22px 0}.offline-title{font-size:14px}.offline-select-label{display:block;font-size:11px;color:#6b7e70;margin:13px 0 7px}#offline-exam-select{width:100%;font-size:12px;min-height:44px}.offline-buttons{display:flex;flex-wrap:wrap;gap:10px}.offline-buttons .btn{font-size:11px;min-height:42px}.offline-pack-status{margin:10px 0 15px;font-size:11px;color:#73846e}.offline-download{margin-top:18px;background:#f1f6eb;border-radius:12px;padding:15px}.offline-progress-label{display:flex;justify-content:space-between;gap:8px;font-size:10px;color:#587254;margin-bottom:7px}.offline-download progress{width:100%;height:9px;accent-color:#3a6c54;border:0}.offline-download small{display:block;font-size:10px;color:#788670}.offline-resume{font-size:11px;margin:15px 0;color:#89714d}.pwa-card>.notice{margin-top:18px}
@media(display-mode:standalone){body{overscroll-behavior-y:contain}.sidebar{padding-top:calc(32px + env(safe-area-inset-top))}.content{padding-bottom:calc(45px + env(safe-area-inset-bottom))}.player{bottom:calc(12px + env(safe-area-inset-bottom))}}
@media(max-width:720px) and (display-mode:standalone){.topbar{padding-top:env(safe-area-inset-top);height:calc(62px + env(safe-area-inset-top))}.immersive-tools{padding-top:env(safe-area-inset-top);height:calc(62px + env(safe-area-inset-top))}.immersive .content{padding-top:calc(86px + env(safe-area-inset-top))}.modal-overlay{padding-bottom:calc(12px + env(safe-area-inset-bottom))}}