@import "https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700&family=Noto+Serif+SC:wght@500;600;700&display=swap";:root{--bg:#f4f6fb;--surface:#fff;--surface-soft:#f8fafc;--border:#d9e1ef;--border-strong:#b7c4dd;--text:#182338;--muted:#627089;--primary:#2457c5;--primary-strong:#1c46a1;--primary-soft:#edf3ff;--success:#1f8a5b;--danger:#c54949;--shadow:0 18px 50px #11254d14;--radius-lg:20px;--radius-md:14px;--radius-sm:10px}*{box-sizing:border-box}html,body,#root{min-height:100%}body{color:var(--text);background:radial-gradient(circle at top left, #2457c514, transparent 28%), linear-gradient(180deg, #f8fbff 0%, var(--bg) 45%, #eef2f8 100%);margin:0;font-family:Manrope,PingFang SC,Microsoft YaHei,sans-serif}button,input,select,textarea{font:inherit}button{cursor:pointer;border:0}input,select,textarea{border:1px solid var(--border);width:100%;color:var(--text);background:#fff;border-radius:12px;padding:12px 14px;transition:border-color .16s,box-shadow .16s}input:focus,select:focus,textarea:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #2457c51a}label{flex-direction:column;gap:8px;display:flex}label span{color:var(--muted);font-size:13px}.app-shell{min-height:100vh;padding:24px}.page-main,.page-stack{gap:20px;display:grid}.topbar,.panel{border-radius:var(--radius-lg);box-shadow:var(--shadow);background:#fffffff0;border:1px solid #b9c6dce6}.topbar{justify-content:space-between;align-items:center;gap:20px;margin-bottom:20px;padding:18px 22px;display:flex}.brand{align-items:center;gap:14px;min-width:0;display:flex}.brand-mark{background:linear-gradient(135deg, var(--primary), var(--primary-strong));color:#fff;letter-spacing:.08em;border-radius:18px;place-items:center;width:56px;height:56px;font-family:Noto Serif SC,serif;font-size:20px;display:grid}.brand-copy{gap:2px;display:grid}.brand-copy h1,.page-banner h2,.section-header h3,.auth-brand h2,.paper-header h1{margin:0;font-family:Noto Serif SC,serif;font-weight:600}.brand-copy h1{font-size:22px}.brand-copy span,.section-subtitle,.status-note,.auth-note,.metric-card small,.session-brief span,.list-card small,.table-row small,.summary-list span,.type-picker-head small{color:var(--muted)}.kicker{letter-spacing:.18em;text-transform:uppercase;color:#7a88a4;margin:0;font-size:11px}.topbar-actions,.mode-switch,.chip-row,.section-tools,.metric-strip,.auth-tabs{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.topbar-actions{justify-content:flex-end}.session-brief{text-align:right;gap:4px;display:grid}.mode-switch{background:var(--surface-soft);border:1px solid var(--border);border-radius:999px;padding:4px}.mode-switch button,.chip,.ghost-button,.primary-button,.text-button{border-radius:999px;transition:all .16s}.mode-switch button,.chip,.ghost-button,.text-button{color:var(--muted);background:0 0;padding:10px 14px}.mode-switch button.active,.chip.active{background:linear-gradient(135deg, var(--primary), var(--primary-strong));color:#fff}.ghost-button{border:1px solid var(--border);background:#fff}.ghost-button:hover,.text-button:hover{color:var(--primary-strong)}.primary-button{background:linear-gradient(135deg, var(--primary), var(--primary-strong));color:#fff;padding:12px 18px}.primary-button.compact,.ghost-button.compact{padding:10px 14px}.text-button{padding:0}.page-banner,.auth-shell,.teacher-layout,.admin-layout,.split-layout{gap:20px;display:grid}.teacher-sidebar,.admin-side{align-self:start}.page-banner{grid-template-columns:minmax(0,1fr);padding:24px}.page-banner h2{font-size:clamp(28px,3vw,38px);line-height:1.1}.metric-strip{align-items:stretch}.metric-card{background:var(--surface-soft);border:1px solid var(--border);border-radius:16px;flex:180px;gap:6px;min-width:0;padding:16px 18px;display:grid}.metric-card span{color:var(--muted);font-size:12px}.metric-card strong{font-size:24px}.metric-grid-six .metric-card{flex-basis:calc(16.66% - 10px)}.panel{padding:20px}.section-header{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:16px;display:flex}.field-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.field-span-2{grid-column:1/-1}.compact-stack,.list-stack,.editor-list,.export-list,.selection-groups{gap:14px;display:grid}.summary-list{gap:12px;display:grid}.summary-list-inline{grid-template-columns:repeat(3,minmax(0,1fr))}.summary-list>div{background:var(--surface-soft);border:1px solid var(--border);border-radius:14px;gap:6px;padding:12px 14px;display:grid}.summary-list strong{font-size:14px}.inline-warning,.error-box,.empty-box{border-radius:14px;padding:12px 14px}.inline-warning{color:#8b5e06;background:#fff5df;border:1px solid #f0d391}.error-box{color:var(--danger);background:#fff1f1;border:1px solid #efc2c2}.empty-box{background:var(--surface-soft);border:1px dashed var(--border-strong);color:var(--muted)}.top-error{margin-bottom:20px}.auth-shell{grid-template-columns:minmax(320px,.9fr) minmax(360px,.7fr)}.auth-brand,.auth-card{align-content:start;gap:16px;display:grid}.auth-helper-list{flex-wrap:wrap;gap:10px;display:flex}.auth-helper-list span,.preview-meta span,.paper-headline span,.paper-question-section-tag,.paper-question-type,.status-pill{border:1px solid var(--border);background:#fff;border-radius:999px;align-items:center;gap:8px;padding:6px 10px;display:inline-flex}.auth-note{margin:0;font-size:13px}.export-complete-shell{place-items:center;min-height:calc(100vh - 48px);display:grid}.export-complete-card{width:min(100%,520px);box-shadow:var(--shadow);text-align:center;background:#fffffff5;border:1px solid #b9c6dce6;border-radius:24px;gap:14px;padding:28px;display:grid}.export-complete-mark{background:linear-gradient(135deg, var(--primary), var(--primary-strong));color:#fff;letter-spacing:.08em;border-radius:22px;place-items:center;width:72px;height:72px;margin:0 auto;font-weight:700;display:grid}.export-complete-card h2{margin:0;font-family:Noto Serif SC,serif;font-size:28px;font-weight:600}.export-complete-copy,.export-complete-note{color:var(--muted);margin:0;line-height:1.7}.v2-preview-body{height:calc(100vh - 76px);min-height:0;display:grid}.v2-editor{background:#f6f3ec;border-right:1px solid #d9e0ea;padding:22px;overflow:auto}.v2-editor-head,.v2-edit-block header,.v2-revision-list>div{justify-content:space-between;align-items:center;gap:12px;display:flex}.v2-editor-head{z-index:3;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#f6f3ecf5;border-bottom:1px solid #d9e0ea;margin:-22px -22px 18px;padding:18px 22px;position:sticky;top:-22px}.v2-editor-head span,.v2-edit-block header span,.v2-editor-title span{color:#687382;letter-spacing:.06em;font-size:12px}.v2-editor-head h3{margin:3px 0 0;font-family:Noto Serif SC,Songti SC,serif}.v2-editor button,.v2-preview-toolbar button.is-active{color:#fff;background:#1e4f45;border-color:#1e4f45}.v2-editor-title{gap:7px;margin-bottom:14px;display:grid}.v2-editor-title input,.v2-edit-block textarea{color:#18252f;background:#fff;border:1px solid #cfd7e2;border-radius:10px;width:100%}.v2-editor-title input{min-height:42px;padding:0 12px;font-size:15px;font-weight:700}.v2-editor-blocks,.v2-edit-children{gap:12px;display:grid}.v2-edit-children{border-left:2px solid #d9e0ea;margin-top:12px;padding-left:14px}.v2-edit-block{background:#fff;border:1px solid #d7dfe8;border-radius:14px;padding:14px}.v2-edit-block.is-locked{background:#fffaf0;border-color:#d6b06a}.v2-edit-block header>div:first-child{gap:2px;display:grid}.v2-edit-block header>div:last-child{flex-wrap:wrap;justify-content:flex-end;gap:6px;display:flex}.v2-edit-block header button,.v2-revision-list button{min-height:30px;padding:0 9px;font-size:12px}.v2-edit-block textarea{resize:vertical;min-height:128px;margin-top:10px;padding:11px;font-family:JetBrains Mono,Microsoft YaHei,monospace;font-size:12px;line-height:1.6}.v2-field-error{color:#b23b32;margin:7px 0 0;font-size:12px}.v2-revision-list{background:#e9ede8;border-radius:14px;margin-top:18px;padding:15px}.v2-revision-list h4{margin:0 0 8px}.v2-revision-list>div{border-top:1px solid #18252f1a;padding:9px 0}.v2-revision-list i{color:#1e4f45;font-style:normal;font-weight:700}.v2-message.is-success{color:#245f40;background:#edf7f0;border-color:#a8c5b3}@media (width<=900px){.v2-preview-body.is-editing{grid-template-columns:1fr;overflow:auto}.v2-preview-body.is-editing .v2-editor,.v2-preview-body.is-editing .v2-paper-stage{min-height:72vh}.v2-editor{border-bottom:1px solid #d9e0ea;border-right:0}}.export-complete-file{background:var(--surface-soft);border:1px solid var(--border);color:var(--text);word-break:break-word;border-radius:14px;padding:12px 14px}.export-complete-actions{flex-wrap:wrap;justify-content:center;gap:12px;display:flex}.teacher-layout{grid-template-columns:360px minmax(0,1fr);align-items:start}.teacher-main,.teacher-sidebar,.admin-main,.admin-side{gap:20px;display:grid}.preview-meta{flex-wrap:wrap;gap:10px;margin-bottom:16px;display:flex}.preview-stage{padding-bottom:4px;overflow-x:auto}.paper-stage-stack{gap:24px;display:grid}.paper-sheet{background:#fff;border:1px solid #c7d4ea;border-radius:24px;width:min(1120px,100%);min-height:760px;margin:0 auto;padding:28px 30px 26px;position:relative;overflow:hidden;box-shadow:0 28px 60px #1531671f}.paper-watermark{text-align:center;color:#2457c50d;letter-spacing:.18em;pointer-events:none;font-size:72px;position:absolute;inset:auto 0 48%}.paper-header{border-bottom:1px solid #cfd8ea;gap:6px;margin-bottom:16px;padding-bottom:10px;display:grid;position:relative}.paper-brand{color:var(--primary);font-size:13px;font-weight:700}.paper-header h1{text-align:center;margin:0;font-size:clamp(20px,2vw,28px);line-height:1.15}.paper-headline{flex-wrap:wrap;justify-content:center;gap:8px;margin-top:-2px;display:flex}.paper-page-chip{background:var(--primary-soft);color:var(--primary-strong);border-radius:999px;padding:6px 12px;font-size:12px;position:absolute;top:0;right:0}.paper-question-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.paper-question{background:linear-gradient(#fff 0%,#fbfdff 100%);border:1px solid #c9d7ef;border-radius:20px;gap:12px;min-height:180px;padding:16px;display:grid}.paper-question-wide{grid-column:1/-1}.paper-question-head{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.paper-question-no{background:linear-gradient(135deg, var(--primary), var(--primary-strong));color:#fff;border-radius:999px;place-items:center;width:30px;height:30px;font-weight:700;display:grid}.paper-question-stem,.paper-options li,.paper-answer-card p{white-space:pre-wrap;font-size:14px;line-height:1.65}.paper-options{gap:6px;margin:0;padding-left:20px;display:grid}.paper-answer-choice,.paper-answer-tianzige{flex-wrap:wrap;gap:8px;display:flex}.paper-answer-tianzige-stack{flex-wrap:wrap;align-items:flex-start;gap:12px 14px;margin-top:8px;display:flex}.paper-tianzige-cluster{flex:none;justify-items:center;gap:3px;display:grid}.paper-pinyin-group{color:#4f5f80;text-align:center;white-space:nowrap;min-height:24px;font-size:17px;line-height:1.1}.paper-tianzige-group{grid-auto-columns:minmax(0,38px);grid-auto-flow:column;justify-content:start;gap:6px;display:grid}.paper-choice-mark{align-items:center;gap:6px;font-size:14px;display:inline-flex}.paper-choice-mark i{border:1px solid #7c8eaf;border-radius:4px;width:16px;height:16px}.paper-answer-hint{color:var(--muted);font-size:14px}.paper-tianzige-cell{border:1px solid #7185aa;width:38px;height:38px;position:relative}.paper-tianzige-cell-large{width:38px;height:38px}.paper-tianzige-cell:before,.paper-tianzige-cell:after{content:"";background:#7185aab3;position:absolute}.paper-tianzige-cell:before{height:1px;top:50%;left:0;right:0}.paper-tianzige-cell:after{width:1px;top:0;bottom:0;left:50%}.paper-answer-sheet{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.paper-answer-card{background:#fbfdff;border:1px solid #c9d7ef;border-radius:16px;padding:14px 16px}.list-card{border:1px solid var(--border);background:var(--surface-soft);border-radius:16px;justify-content:space-between;align-items:flex-start;gap:16px;padding:14px 16px;display:flex}.list-card-button{text-align:left;width:100%}.list-card-meta{justify-items:end;gap:8px;display:grid}.active-row{border-color:var(--primary);box-shadow:0 0 0 2px #2457c51f}.status-pill.ok{color:var(--success);background:#edf9f3}.status-pill.muted{color:var(--muted);background:#f3f6fb}.status-note{font-size:13px}.inline-select{align-items:center;gap:10px;display:flex}.inline-select span{white-space:nowrap}.inline-select select{min-width:170px}.editor-card{border:1px solid var(--border);background:var(--surface-soft);border-radius:16px;padding:16px}.editor-card-head{justify-content:space-between;align-items:center;gap:14px;margin-bottom:12px;display:flex}.admin-hero{gap:18px;display:grid}.admin-hero-copy{gap:8px;display:grid}.admin-hero-copy h2,.commerce-policy-card h4{margin:0;font-family:Noto Serif SC,serif;font-weight:600}.commerce-tabs{padding:12px 16px}.commerce-layout{gap:20px}.commerce-stack{gap:20px;display:grid}.commerce-policy-grid,.commerce-guide-grid,.commerce-kpi-grid{gap:16px;display:grid}.commerce-policy-grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}.commerce-guide-grid,.commerce-kpi-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}.commerce-policy-card{border:1px solid var(--border);background:linear-gradient(#fff 0%,#f8fbff 100%);border-radius:18px;gap:16px;padding:20px;display:grid}.commerce-policy-top{justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.commerce-policy-kpis{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;display:grid}.commerce-policy-kpis div,.commerce-highlight,.tag-chip{border-radius:14px}.commerce-policy-kpis div{background:var(--surface-soft);border:1px solid var(--border);gap:4px;padding:14px;display:grid}.commerce-policy-kpis strong,.commerce-kpi-grid strong{font-size:22px}.tag-row{flex-wrap:wrap;gap:8px;display:flex}.tag-chip{border:1px solid var(--border);color:var(--muted);background:#f4f7fc;padding:8px 12px;font-size:13px}.commerce-form-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.commerce-code-row{grid-template-columns:1.3fr 1fr .9fr 1.1fr .8fr 1fr}.commerce-user-row{grid-template-columns:1.3fr .9fr .8fr 1fr 1fr 1fr}.commerce-highlight{border:1px solid var(--border);background:linear-gradient(135deg,#2457c514,#2457c505);justify-content:space-between;align-items:center;gap:16px;padding:16px 18px;display:flex}.commerce-highlight strong{font-size:18px}.commerce-mini-list{gap:10px;display:grid}.commerce-mini-row{border-bottom:1px solid var(--border);justify-content:space-between;align-items:flex-start;gap:14px;padding:12px 0;display:flex}.commerce-mini-row:last-child{border-bottom:0;padding-bottom:0}.commerce-mini-row>div{gap:4px;display:grid}.commerce-details{border:1px solid var(--border);background:var(--surface-soft);border-radius:14px;padding:12px 14px}.commerce-details summary{cursor:pointer;color:var(--primary-strong);font-weight:600}.admin-layout{grid-template-columns:minmax(0,1fr) 380px;align-items:start}.split-layout{grid-template-columns:320px minmax(0,1fr);align-items:start}.table-shell{gap:10px;display:grid}.table-row{background:var(--surface-soft);border:1px solid var(--border);border-radius:14px;grid-template-columns:1.2fr 1fr 1fr 1fr 1fr 1.4fr .8fr;align-items:start;gap:12px;padding:14px 12px;display:grid}.table-head{color:var(--primary-strong);background:#edf3ff;font-size:13px;font-weight:700}.user-table-row{grid-template-columns:1.4fr .7fr 1fr 1fr 1.2fr 1.2fr}.selection-groups strong{font-size:14px}.selection-groups>div{gap:10px;display:grid}.top-gap{margin-top:14px}.lesson-plan-sheet{background:linear-gradient(#fff 0%,#fbfcff 100%);border-radius:32px;width:min(100%,980px);min-height:1120px;margin:0 auto;padding:48px 54px 56px;position:relative;overflow:hidden;box-shadow:0 26px 60px #2c438229}.lesson-plan-header{z-index:1;text-align:center;border-bottom:1px solid #d5ddf0;margin-bottom:28px;padding-bottom:16px;position:relative}.lesson-plan-header h1{color:#1f2430;margin:10px 0 8px;font-size:30px;line-height:1.2}.lesson-plan-body{z-index:1;gap:16px;display:grid;position:relative}.lesson-plan-section{background:#f8fafff2;border:1px solid #dbe4f5;border-radius:22px;padding:18px 20px}.lesson-plan-section h3{color:#3554d1;margin:0 0 12px;font-size:16px}.lesson-plan-list{gap:10px;margin:0;padding-left:18px;display:grid}.lesson-plan-list li{color:#273043;line-height:1.7}.lesson-plan-process{background:#fff;border:1px solid #dbe4f5;border-radius:16px;padding:10px 12px}.lesson-plan-process span{color:#6a748b;margin-left:10px;font-size:12px}.lesson-plan-process p{margin:6px 0 0;font-size:14px}.lesson-plan-prepare-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.lesson-plan-prepare-card{background:#fff;border:1px solid #dbe4f5;border-radius:16px;padding:12px 14px}.content-badge{letter-spacing:.08em;text-transform:uppercase;border-radius:999px;justify-content:center;align-self:center;align-items:center;min-width:88px;padding:7px 14px;font-size:12px;font-weight:700;display:inline-flex}.content-badge-teacher{color:#2443ad;background:linear-gradient(135deg,#3554d124,#3554d10f);border:1px solid #3554d12e}.content-badge-knowledge{color:#156f47;background:linear-gradient(135deg,#1f8a5b24,#1f8a5b0f);border:1px solid #1f8a5b2e}.section-eyebrow{letter-spacing:.14em;text-transform:uppercase;color:#7382a4;margin:0;font-size:12px;font-weight:700}.section-empty{color:#72809b;margin:0;font-size:14px}.text-chip-row{flex-wrap:wrap;gap:10px;display:flex}.text-chip{color:#28408d;background:#eef4ff;border:1px solid #d7e3ff;border-radius:999px;padding:8px 12px;font-size:13px}.lesson-notes-sheet{width:min(100%,1060px);padding-bottom:44px}.lesson-notes-header{margin-bottom:18px}.lesson-notes-hero{z-index:1;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:16px;margin-bottom:18px;display:grid;position:relative}.lesson-notes-summary-card,.lesson-notes-process-card,.knowledge-summary-card,.knowledge-mini-card{background:linear-gradient(#fff 0%,#f8fbff 100%);border:1px solid #dbe4f5;border-radius:20px;padding:18px 20px;box-shadow:0 10px 24px #2a47920f}.lesson-notes-summary-card h3,.knowledge-summary-card h3{color:#1f2430;margin:8px 0 10px;font-size:20px}.lesson-notes-summary,.knowledge-summary{color:#33405c;margin:0 0 14px;line-height:1.75}.lesson-notes-flow{gap:12px;display:grid}.lesson-notes-flow-card{background:#fff;border:1px solid #dbe4f5;border-radius:16px;padding:12px 14px}.lesson-notes-flow-card strong{color:#2a3a66;margin-bottom:6px;display:block}.lesson-notes-flow-card span,.lesson-notes-flow-card p{color:#33405c;font-size:14px;line-height:1.65}.lesson-notes-section-grid{z-index:1;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid;position:relative}.lesson-notes-section-card{background:#f8fafff2;border:1px solid #dbe4f5;border-radius:18px;padding:16px 18px}.lesson-notes-section-card h3{color:#3554d1;margin:0 0 12px;font-size:16px}.knowledge-sheet{width:min(100%,1040px)}.knowledge-header{margin-bottom:18px}.knowledge-hero{z-index:1;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:16px;margin-bottom:18px;display:grid;position:relative}.knowledge-outline-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.knowledge-outline-card{background:#fff;border:1px solid #dbe4f5;border-radius:16px;gap:4px;padding:14px 16px;display:grid}.knowledge-outline-card span{letter-spacing:.08em;color:#4c5f89;font-size:12px;font-weight:700}.knowledge-outline-card strong{color:#24314e;font-size:15px;line-height:1.6}.knowledge-continue-note{z-index:1;color:#1f8a5b;background:#eef8f2;border-radius:999px;align-items:center;margin:0 0 14px;padding:8px 12px;font-size:13px;font-weight:600;display:inline-flex;position:relative}.knowledge-question-grid{z-index:1;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid;position:relative}.knowledge-question-card{background:linear-gradient(#fff 0%,#fafcff 100%);border:1px solid #dbe4f5;border-radius:18px;gap:12px;padding:16px;display:grid;box-shadow:0 8px 20px #2a47920d}.knowledge-question-card-wide{grid-column:1/-1}.vocabulary-sheet{width:min(100%,1040px)}.vocabulary-hero{margin-bottom:16px}.vocabulary-grid{z-index:1;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid;position:relative}.vocabulary-card{background:linear-gradient(#fff 0%,#fafcff 100%);border:1px solid #dbe4f5;border-radius:18px;gap:10px;min-height:148px;padding:16px 18px;display:grid;box-shadow:0 8px 20px #2a47920d}.vocabulary-card-head{justify-content:space-between;align-items:baseline;gap:10px;display:flex}.vocabulary-card-head h3{color:#223152;margin:0;font-size:16px}.vocabulary-card-head span{color:#6980b3;font-size:12px}.vocabulary-card p{color:#33405c;white-space:pre-wrap;margin:0;font-size:15px;line-height:1.88}.vocabulary-card-empty{grid-column:1/-1;min-height:118px}.paper-knowledge-panel{z-index:1;background:linear-gradient(135deg,#f8fbff 0%,#eef4ff 100%);border:1px solid #d7e2f6;border-radius:22px;gap:16px;margin-bottom:18px;padding:18px 20px;display:grid;position:relative;box-shadow:inset 0 1px #ffffffb8}.paper-knowledge-head{grid-template-columns:minmax(0,.75fr) minmax(0,1.25fr);align-items:start;gap:14px;display:grid}.paper-panel-kicker,.section-eyebrow{letter-spacing:.12em;text-transform:uppercase;color:#5d73a5;margin:0;font-size:12px;font-weight:700}.paper-knowledge-head h3{color:#1f2430;margin:8px 0 0;font-size:20px}.paper-knowledge-summary{color:#31405f;margin:0;line-height:1.72}.paper-outline-row{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;display:grid}.paper-outline-chip{background:#ffffffeb;border:1px solid #dbe4f5;border-radius:18px;gap:6px;padding:14px 16px;display:grid}.paper-outline-chip span{color:#fff;background:#3554d1;border-radius:999px;place-items:center;width:24px;height:24px;font-size:12px;font-weight:700;display:inline-grid}.paper-outline-chip strong{color:#24314e;font-size:15px;line-height:1.6}.paper-knowledge-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;display:grid}.paper-knowledge-card{background:#fff;border:1px solid #dbe4f5;border-radius:18px;gap:10px;padding:16px 18px;display:grid;box-shadow:0 8px 18px #2a47920d}.paper-knowledge-card-head{justify-content:space-between;align-items:baseline;gap:10px;display:flex}.paper-knowledge-card-head strong{color:#223152;font-size:16px}.paper-knowledge-card-head span{color:#6980b3;font-size:12px}.paper-knowledge-card p{color:#33405c;margin:0;font-size:14px;line-height:1.72}.paper-sheet-portrait,.exam-sheet{width:min(100%,930px);min-height:1180px;padding:28px 34px 30px}.exam-header{margin-bottom:18px}.exam-summary-bar{flex-wrap:wrap;justify-content:center;gap:10px;margin-top:2px;display:flex}.exam-summary-bar span{color:#2740a4;background:#eef3ff;border-radius:999px;padding:6px 10px;font-size:12px;font-weight:600}.exam-outline-box{background:linear-gradient(#fff 0%,#f8fbff 100%);border:1px solid #dbe4f5;border-radius:18px;margin-bottom:18px;padding:14px 16px}.exam-outline-box strong{color:#3554d1;margin-bottom:8px;font-size:14px;display:block}.exam-outline-box p{color:#33405c;margin:0;font-size:14px;line-height:1.72}.exam-section-list{gap:16px;display:grid}.exam-section-card{background:linear-gradient(#fff 0%,#fbfdff 100%);border:1px solid #dbe4f5;border-radius:20px;gap:10px;padding:16px 18px;display:grid}.exam-section-head{justify-content:space-between;align-items:center;gap:12px;display:flex}.exam-section-head h3{color:#23325a;margin:0;font-size:18px}.exam-section-head span{color:#3554d1;background:#eef3ff;border-radius:999px;padding:6px 10px;font-size:12px;font-weight:700}.exam-section-instruction{color:#53637f;margin:0;font-size:14px;line-height:1.7}.exam-question-list{gap:14px;display:grid}.exam-question-row{background:#fff;border:1px solid #e2e9f8;border-radius:16px;gap:10px;padding:14px 16px;display:grid}.exam-question-title{justify-content:space-between;align-items:center;gap:10px;display:flex}.exam-question-title strong{color:#23325a;font-size:15px}.exam-question-title span{color:#5c74ac;font-size:12px;font-weight:700}.exam-answer-grid{grid-template-columns:1fr}@media (width<=1180px){.teacher-layout,.admin-layout,.split-layout,.auth-shell,.table-row,.user-table-row,.paper-question-grid,.paper-answer-sheet{grid-template-columns:1fr}.metric-grid-six .metric-card,.metric-card{flex-basis:calc(50% - 10px)}.lesson-plan-prepare-grid,.lesson-notes-hero,.lesson-notes-section-grid,.knowledge-hero,.knowledge-outline-grid,.knowledge-question-grid,.vocabulary-grid,.paper-knowledge-head,.paper-outline-row,.paper-knowledge-grid{grid-template-columns:1fr}}@media (width<=760px){.app-shell{padding:14px}.topbar{align-items:flex-start;padding:16px}.topbar,.section-header,.topbar-actions{flex-direction:column;align-items:stretch}.field-grid{grid-template-columns:1fr}.field-span-2{grid-column:auto}.paper-sheet{min-height:auto;padding:20px 16px}.paper-headline{justify-content:flex-start}.metric-card{flex-basis:100%}.lesson-plan-sheet{border-radius:24px;padding:26px 18px 28px}.lesson-plan-prepare-grid{grid-template-columns:1fr}}.content-center-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.content-center-card{text-align:left;background:#fff;border:1px solid #3554d124;border-radius:20px;padding:20px;transition:all .16s;box-shadow:0 18px 42px #1221540f}.content-center-card:hover,.content-center-card.active{border-color:#3554d15c;transform:translateY(-1px);box-shadow:0 22px 48px #1a34961f}.content-center-copy strong{color:#16295a;font-size:18px;display:block}.content-center-copy p{color:#57667f;margin:8px 0 0;line-height:1.6}.content-center-tags{flex-wrap:wrap;gap:8px;margin-top:14px;display:flex}.mini-tag{color:#3554d1;background:#eef3ff;border-radius:999px;align-items:center;padding:6px 10px;font-size:12px;font-weight:600;display:inline-flex}@media (width<=960px){.content-center-grid{grid-template-columns:1fr}}:root{--v2-ink:#17352f;--v2-ink-2:#244b43;--v2-paper:#fffdf7;--v2-canvas:#f2eee4;--v2-line:#ddd6c7;--v2-muted:#766f63;--v2-accent:#bf5b35;--v2-accent-soft:#f5ded1;--v2-gold:#d6ae62;--v2-danger:#b33f35;--v2-success:#2d725d;--v2-shadow:0 24px 70px #302a201f}.v2-app,.v2-auth,.v2-boot{color:var(--v2-ink);font-family:Microsoft YaHei UI,PingFang SC,sans-serif}.v2-app button,.v2-auth button,.v2-app input,.v2-auth input,.v2-app select{font:inherit}.v2-app button,.v2-auth button{cursor:pointer}.v2-app{background:radial-gradient(circle at 88% 6%, #d6ae6229, transparent 24%), linear-gradient(135deg, #f7f3e9, var(--v2-canvas));grid-template-columns:236px minmax(0,1fr);min-height:100vh;display:grid}.v2-sidebar{z-index:20;color:#f8f3e8;background:linear-gradient(165deg, #ffffff09, transparent 34%), var(--v2-ink);border-right:1px solid #ffffff14;flex-direction:column;height:100vh;padding:28px 18px 20px;display:flex;position:sticky;top:0}.v2-brand{align-items:center;gap:12px;padding:0 8px 32px;display:flex}.v2-brand>div{width:48px;height:48px;color:var(--v2-ink);letter-spacing:.08em;background:#f4e9cf;border-radius:14px 14px 14px 4px;place-items:center;font-family:Noto Serif SC,STSong,serif;font-size:17px;font-weight:700;display:grid}.v2-brand span{gap:4px;display:grid}.v2-brand b{letter-spacing:.04em;font-family:Noto Serif SC,STSong,serif;font-size:16px}.v2-brand small{color:#ffffff85;letter-spacing:.14em;font-size:8px}.v2-sidebar nav{gap:7px;display:grid}.v2-sidebar nav button{color:#ffffffad;text-align:left;background:0 0;border:1px solid #0000;border-radius:12px;grid-template-columns:34px 1fr;align-items:center;min-height:48px;padding:0 12px;transition:all .18s;display:grid}.v2-sidebar nav button i{color:#ffffff4d;font-family:Georgia,serif;font-size:11px;font-style:normal}.v2-sidebar nav button:hover,.v2-sidebar nav button.is-active{color:#fff;background:#ffffff17;border-color:#ffffff14;transform:translate(2px)}.v2-sidebar nav button.is-active:after{content:"";background:var(--v2-gold);border-radius:50%;justify-self:end;width:5px;height:5px}.v2-sidebar-foot{border-top:1px solid #ffffff1a;gap:6px;margin-top:auto;padding:16px 8px 0;display:grid}.v2-sidebar-foot span{font-weight:700}.v2-sidebar-foot small{color:#ffffff7a;margin-bottom:8px}.v2-sidebar-foot button{color:#ffffffa8;text-align:left;background:0 0;padding:7px 0}.v2-sidebar-foot button:hover{color:#fff}.v2-main{min-width:0;padding:38px clamp(26px,4vw,64px) 64px}.v2-page-header,.v2-section-heading,.v2-panel-head,.v2-preview-toolbar,.v2-question-head{justify-content:space-between;align-items:flex-end;gap:24px;display:flex}.v2-page-header{margin-bottom:34px}.v2-page-header span,.v2-section-heading>div>span,.v2-auth-heading>span,.v2-panel-head>div>span{color:var(--v2-accent);letter-spacing:.14em;text-transform:uppercase;font-size:11px;font-weight:700}.v2-page-header h1,.v2-section-heading h2,.v2-welcome h2,.v2-membership-hero h2,.v2-auth h1,.v2-auth h2,.v2-admin-panel h2{margin:4px 0 0;font-family:Noto Serif SC,STSong,serif;font-weight:700}.v2-page-header h1{font-size:clamp(26px,3vw,38px)}.v2-live-badge{color:var(--v2-success);background:#2d725d14;border:1px solid #2d725d2e;border-radius:999px;align-items:center;gap:8px;padding:9px 13px;font-size:12px;display:flex}.v2-live-badge i{background:currentColor;border-radius:50%;width:7px;height:7px;box-shadow:0 0 0 5px #2d725d17}.v2-live-badge.is-paused{color:var(--v2-accent);background:#bf5b3514;border-color:#bf5b352e}.v2-home-grid{grid-template-columns:minmax(0,1.15fr) minmax(300px,.85fr);gap:24px;display:grid}.v2-welcome{color:#fffaf0;min-height:410px;box-shadow:var(--v2-shadow);background:linear-gradient(110deg,#0f312bf5,#1d453ce6),repeating-linear-gradient(30deg,#0000 0 22px,#ffffff09 22px 23px);border-radius:28px 28px 28px 8px;padding:clamp(34px,5vw,68px)}.v2-welcome>span{color:#e8c989;letter-spacing:.16em;font-size:12px}.v2-welcome h2{max-width:580px;margin-top:24px;font-size:clamp(34px,5vw,58px);line-height:1.22}.v2-welcome p{color:#ffffffad;max-width:560px;margin:24px 0 36px;line-height:1.8}.v2-welcome>div{flex-wrap:wrap;gap:10px;display:flex}.v2-welcome button{color:var(--v2-ink);background:#f4e9cf;border-radius:999px;padding:12px 18px}.v2-welcome button:nth-child(n+2){color:#fff;background:#ffffff17;border:1px solid #ffffff29}.v2-home-cards{grid-template-columns:1fr 1fr;gap:14px;display:grid}.v2-home-cards button{min-height:198px;color:var(--v2-ink);text-align:left;border:1px solid var(--v2-line);background:#fffdf7d6;border-radius:20px 20px 20px 6px;flex-direction:column;justify-content:space-between;align-items:flex-start;padding:24px;transition:all .18s;display:flex;box-shadow:0 12px 36px #3731270f}.v2-home-cards button:hover{box-shadow:var(--v2-shadow);border-color:#cabfaa;transform:translateY(-4px)}.v2-home-cards span{font-family:Noto Serif SC,STSong,serif;font-size:21px;font-weight:700}.v2-home-cards i{color:var(--v2-accent);font-size:12px;font-style:normal}.v2-composer,.v2-library,.v2-membership,.v2-admin-panel{border:1px solid var(--v2-line);background:#fffdf7eb;border-radius:24px 24px 24px 8px;padding:clamp(22px,3vw,36px);box-shadow:0 18px 52px #37312712}.v2-section-heading{margin-bottom:26px}.v2-section-heading h2{font-size:28px}.v2-section-heading p{max-width:470px;color:var(--v2-muted);text-align:right;margin:0;font-size:13px;line-height:1.65}.v2-type-groups{background:#f3efe6;border-radius:16px;gap:10px;margin-bottom:26px;padding:18px;display:grid}.v2-type-group{grid-template-columns:90px 1fr;align-items:center;gap:12px;display:grid}.v2-type-group b{color:var(--v2-muted);font-size:12px}.v2-type-group>div{flex-wrap:wrap;gap:7px;display:flex}.v2-type-group button{color:#5c594f;background:0 0;border:1px solid #0000;border-radius:999px;padding:8px 13px}.v2-type-group button:hover{color:var(--v2-ink);background:#ffffffa6}.v2-type-group button.is-active{color:#fff;background:var(--v2-ink-2)}.v2-form-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;display:grid}.v2-form-grid label,.v2-compact-form label,.v2-detail-card label{gap:7px;display:grid}.v2-form-grid label>span,.v2-compact-form label>span,.v2-detail-card label>span,.v2-inline-options label>span{color:var(--v2-muted);font-size:12px}.v2-form-grid input,.v2-form-grid select,.v2-compact-form input,.v2-compact-form select,.v2-detail-card input,.v2-panel-head input,.v2-inline-options select{width:100%;min-height:45px;color:var(--v2-ink);border:1px solid var(--v2-line);background:#fffefb;border-radius:10px;outline:none;padding:10px 12px}.v2-form-grid input:focus,.v2-form-grid select:focus,.v2-compact-form input:focus,.v2-compact-form select:focus{border-color:var(--v2-ink-2);box-shadow:0 0 0 3px #244b4314}.v2-span-2{grid-column:span 2}.v2-question-config{border-top:1px solid var(--v2-line);margin-top:24px;padding-top:22px}.v2-question-head{align-items:center;margin-bottom:14px}.v2-question-head>div{align-items:baseline;gap:12px;display:flex}.v2-question-head span{color:var(--v2-accent);font-size:12px}.v2-question-head small{color:var(--v2-muted)}.v2-question-types{grid-template-columns:repeat(3,minmax(0,1fr));gap:9px;display:grid}.v2-question-type{background:#f5f1e9;border:1px solid #0000;border-radius:11px;justify-content:space-between;align-items:center;min-height:44px;padding:5px 6px 5px 12px;display:flex}.v2-question-type.is-selected{background:#edf3ef;border-color:#244b4338}.v2-type-toggle{color:var(--v2-muted);text-align:left;background:0 0}.v2-question-type.is-selected .v2-type-toggle{color:var(--v2-ink);font-weight:700}.v2-stepper{text-align:center;grid-template-columns:26px 28px 26px;align-items:center;display:grid}.v2-stepper button{width:26px;height:26px;color:var(--v2-ink);border:1px solid var(--v2-line);background:#fff;border-radius:7px}.v2-stepper strong{font-size:12px}.v2-inline-options{align-items:end;gap:24px;margin-top:16px;display:flex}.v2-check{grid-template-columns:auto 1fr;align-items:center;min-height:44px;gap:8px!important;display:flex!important}.v2-check input{width:16px;height:16px;accent-color:var(--v2-ink-2)}.v2-primary-action{color:#fff;letter-spacing:.04em;background:linear-gradient(110deg, var(--v2-ink), var(--v2-ink-2));border-radius:13px;width:100%;min-height:52px;margin-top:24px;font-weight:700;box-shadow:0 14px 30px #17352f2e}.v2-primary-action:disabled{cursor:not-allowed;opacity:.55;box-shadow:none}.v2-message{border-radius:10px;margin:16px 0;padding:12px 14px;font-size:13px}.v2-message.is-error{color:var(--v2-danger);background:#fff0eb;border:1px solid #efd0c7}.v2-message.is-success{color:var(--v2-success);background:#eaf4ee;border:1px solid #c7dfd1}.v2-job-state{background:#f4f1e8;border-radius:11px;grid-template-columns:75px minmax(100px,1fr) 45px;align-items:center;gap:12px;margin-top:18px;padding:13px 15px;display:grid}.v2-job-state>div{background:#ded9ce;border-radius:999px;height:6px;overflow:hidden}.v2-job-state>div i{background:var(--v2-accent);border-radius:inherit;height:100%;transition:width .3s;display:block}.v2-job-state p{color:var(--v2-danger);grid-column:1/-1;margin:0}.v2-preview-panel{z-index:60;background:#dfdad0;border:1px solid #c8c0b2;border-radius:22px;grid-template-rows:auto minmax(0,1fr);display:grid;position:fixed;inset:18px;overflow:hidden;box-shadow:0 30px 100px #141a1752}.v2-preview-toolbar{color:#fff;background:var(--v2-ink);align-items:center;padding:13px 18px}.v2-preview-toolbar>div:first-child{gap:2px;display:grid}.v2-preview-toolbar span{color:#e6c781;letter-spacing:.14em;font-size:10px}.v2-preview-toolbar b{font-size:13px}.v2-preview-toolbar>div:last-child{gap:7px;display:flex}.v2-preview-toolbar button{color:var(--v2-ink);background:#f4e9cf;border-radius:8px;padding:8px 13px}.v2-preview-toolbar button:disabled{opacity:.55}.v2-preview-toolbar button.v2-close{color:#fff;background:#ffffff1f}.v2-paper-stage{background:repeating-linear-gradient(135deg,#e5e0d6 0 2px,#e2ddd3 2px 4px);place-items:center;min-height:0;padding:28px;display:grid;overflow:auto}.v2-paper-stage iframe{background:#fff;border:0;width:min(1180px,100%);height:min(78vh,820px);box-shadow:0 18px 60px #1e1d1940}.v2-loading-paper{aspect-ratio:1.414;width:min(1120px,100%);color:var(--v2-muted);box-shadow:var(--v2-shadow);background:#fff;place-items:center;display:grid}.v2-loading-paper.is-error{color:var(--v2-danger);gap:12px}.v2-loading-paper.is-error button{color:var(--v2-ink);border:1px solid var(--v2-line);background:#f4e9cf;border-radius:8px;padding:8px 14px}.v2-preview-body{grid-template-columns:minmax(0,1fr);min-height:0;display:grid}.v2-preview-body.is-editing{grid-template-columns:minmax(360px,.72fr) minmax(640px,1.28fr)}.v2-document-editor{background:#f6f1e7;border-right:1px solid #c8c0b2;min-height:0;padding:18px;overflow:auto}.v2-document-editor>header{justify-content:space-between;align-items:start;gap:16px;margin-bottom:14px;display:flex}.v2-document-editor h3,.v2-document-editor h4,.v2-document-editor p{margin:0}.v2-editor-blocks,.v2-editor-answers{gap:10px;display:grid}.v2-editor-answers{border-top:2px solid var(--v2-line);margin-top:18px;padding-top:16px}.v2-editor-answers>p{color:var(--v2-muted);font-size:11px}.v2-edit-block{border:1px solid var(--v2-line);background:#fffdf8;border-radius:11px;padding:12px}.v2-edit-block>header{justify-content:space-between;gap:10px;margin-bottom:8px;display:flex}.v2-edit-block>header div{flex-wrap:wrap;gap:7px;display:flex}.v2-edit-block>header span{color:var(--v2-accent);font-size:10px}.v2-edit-block>header button{color:var(--v2-ink);background:#edf1ec;border-radius:6px;padding:5px 8px}.v2-edit-block textarea{resize:vertical;width:100%;min-height:106px;color:var(--v2-ink);border:1px solid var(--v2-line);background:#faf7f0;border-radius:8px;padding:10px;font:12px/1.55 Consolas,monospace}.v2-edit-block.is-locked{opacity:.7}.v2-edit-children{border-left:2px solid var(--v2-line);gap:8px;margin-top:10px;padding-left:10px;display:grid}.v2-revision-list{gap:8px;margin-top:18px;display:grid}.v2-revision-list>div{background:#eee8dd;border-radius:8px;justify-content:space-between;align-items:center;gap:12px;padding:9px;display:flex}.v2-revision-list span{gap:2px;display:grid}.v2-revision-list small{color:var(--v2-muted)}.v2-library-grid{grid-template-columns:1.25fr .75fr;gap:18px;display:grid}.v2-library-grid>article{background:#f5f1e9;border-radius:15px;min-width:0;padding:18px}.v2-library-grid h3{justify-content:space-between;margin:0 0 12px;font-family:Noto Serif SC,STSong,serif;display:flex}.v2-library-grid h3 em{color:var(--v2-accent);font-size:14px;font-style:normal}.v2-document-row,.v2-task-row{width:100%;color:var(--v2-ink);text-align:left;border-bottom:1px solid var(--v2-line);background:0 0;justify-content:space-between;align-items:center;gap:14px;padding:13px 6px;display:flex}.v2-document-row span,.v2-task-row span{gap:4px;min-width:0;display:grid}.v2-document-row b,.v2-task-row b{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.v2-document-row small,.v2-task-row small{color:var(--v2-muted)}.v2-document-row i,.v2-task-row i{color:var(--v2-accent);flex:none;font-size:11px;font-style:normal}.v2-empty,.v2-empty-state{color:var(--v2-muted);text-align:center}.v2-home-recent{border:1px solid var(--v2-line);background:#fffdf8;border-radius:16px;grid-column:1/-1;padding:20px}.v2-home-recent>header{justify-content:space-between;align-items:end;margin-bottom:8px;display:flex}.v2-home-recent h3{margin:4px 0 0;font-family:Noto Serif SC,STSong,serif;font-size:22px}.v2-home-recent header span{color:var(--v2-accent);font-size:11px}.v2-home-recent header button,.v2-membership-actions button{color:#fff;background:var(--v2-ink-2);border-radius:8px;padding:9px 13px}.v2-home-recent>button{width:100%;color:var(--v2-ink);text-align:left;border-bottom:1px solid var(--v2-line);background:0 0;justify-content:space-between;align-items:center;gap:14px;padding:12px 3px;display:flex}.v2-home-recent>button span{gap:3px;display:grid}.v2-home-recent small,.v2-home-recent>p,.v2-membership-actions p{color:var(--v2-muted)}.v2-home-recent i{color:var(--v2-accent);font-size:11px;font-style:normal}.v2-membership-hero{color:#fff;background:linear-gradient(120deg, var(--v2-ink), #326357);border-radius:20px 20px 20px 6px;padding:36px}.v2-membership-hero span{color:#e8c989;font-size:12px}.v2-membership-hero h2{font-size:40px}.v2-membership-hero p{color:#ffffffb3;margin:8px 0 0}.v2-membership-grid{grid-template-columns:repeat(3,1fr);gap:14px;margin-top:18px;display:grid}.v2-membership-grid article{background:#f4f0e7;border-radius:14px;padding:20px}.v2-membership-grid span{color:var(--v2-muted);font-size:11px}.v2-membership-grid strong{margin:8px 0;font-family:Georgia,serif;font-size:28px;display:block}.v2-membership-grid p{color:var(--v2-muted);margin:0;font-size:12px;line-height:1.6}.v2-quota-line{background:var(--v2-line);border-radius:13px;gap:1px;margin-top:18px;display:flex;overflow:hidden}.v2-quota-line>div{background:#fffdf8;flex:1;gap:6px;padding:18px;display:grid}.v2-quota-line span{color:var(--v2-muted);font-size:11px}.v2-membership-actions{align-items:center;gap:14px;margin-top:16px;display:flex}.v2-membership-actions p{margin:0;font-size:12px}.v2-auth{background:#f5f0e6;grid-template-columns:minmax(420px,1.05fr) minmax(390px,.95fr);min-height:100vh;display:grid}.v2-auth-story{color:#fff;background:radial-gradient(circle at 70% 22%,#d6ae622e,#0000 28%),linear-gradient(145deg,#102e29,#214d44);flex-direction:column;min-height:100vh;padding:44px clamp(38px,6vw,90px);display:flex}.v2-auth-brand{align-items:center;gap:12px;display:flex}.v2-auth-brand i{width:48px;height:48px;color:var(--v2-ink);background:#f4e9cf;border-radius:14px 14px 14px 4px;place-items:center;font-family:Noto Serif SC,STSong,serif;font-style:normal;font-weight:700;display:grid}.v2-auth-brand span{gap:3px;display:grid}.v2-auth-brand small{color:#ffffff7a;letter-spacing:.16em;font-size:8px}.v2-auth-copy{margin:auto 0}.v2-auth-copy>span{color:#e9c987;letter-spacing:.18em;font-size:11px}.v2-auth-copy h1{max-width:580px;margin:25px 0;font-size:clamp(42px,6vw,72px);line-height:1.2}.v2-auth-copy p{color:#ffffffa3;max-width:520px;font-size:16px;line-height:1.9}.v2-auth-story footer{color:#fff6;font-size:11px}.v2-auth-form{border:1px solid var(--v2-line);width:min(460px,100% - 64px);box-shadow:var(--v2-shadow);background:#fffdf7e0;border-radius:28px 28px 28px 8px;align-self:center;margin:auto;padding:42px}.v2-auth-tabs{background:#ece6da;border-radius:999px;width:fit-content;margin-bottom:36px;padding:4px;display:flex}.v2-auth-tabs button{color:var(--v2-muted);background:0 0;border-radius:999px;padding:8px 18px}.v2-auth-tabs button.is-active{color:#fff;background:var(--v2-ink-2)}.v2-auth-heading h2{font-size:32px}.v2-auth-fields{gap:15px;margin-top:28px;display:grid}.v2-auth-fields label{gap:7px;display:grid}.v2-auth-fields label span{color:var(--v2-muted);font-size:12px}.v2-auth-fields input{width:100%;min-height:48px;color:var(--v2-ink);border:1px solid var(--v2-line);background:#fffefb;border-radius:10px;outline:none;padding:11px 13px}.v2-auth-fields input:focus{border-color:var(--v2-ink-2);box-shadow:0 0 0 3px #244b4314}.v2-auth-double{grid-template-columns:1fr 1fr;gap:10px;display:grid}.v2-auth-fields>button{color:#fff;background:var(--v2-ink);border-radius:11px;min-height:50px;margin-top:8px;font-weight:700}.v2-auth-fields>button:disabled{cursor:not-allowed;opacity:.5}.v2-auth-error{color:var(--v2-danger);background:#fff0eb;border-radius:9px;margin-top:15px;padding:11px 13px;font-size:12px}.v2-auth-terms{color:#938b7d;text-align:center;margin:18px 0 0;font-size:10px}.v2-boot{min-height:100vh;color:var(--v2-muted);background:var(--v2-canvas);align-content:center;place-items:center;gap:14px;display:grid}.v2-boot div{color:#fff;background:var(--v2-ink);border-radius:20px 20px 20px 6px;place-items:center;width:68px;height:68px;font-family:Noto Serif SC,STSong,serif;font-size:20px;font-weight:700;animation:1.2s ease-in-out infinite alternate v2-pulse;display:grid}.v2-boot span{letter-spacing:.08em;font-size:12px}@keyframes v2-pulse{to{transform:translateY(-5px);box-shadow:0 18px 35px #17352f33}}.v2-admin-app{background:#eeeae1}.v2-admin-sidebar{background:#202b29}.v2-refresh,.v2-panel-head button,.v2-admin-panel>button,.v2-compact-form button,.v2-detail-card>button{color:#fff;background:var(--v2-ink-2);border-radius:9px;padding:10px 14px}.v2-header-actions{gap:8px;display:flex}.v2-header-actions .v2-refresh:first-child{color:var(--v2-ink);border:1px solid var(--v2-line);background:#fffdf8}.v2-metric-board{grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:18px;display:grid}.v2-metric-board article{border:1px solid var(--v2-line);background:#fffdf8;border-radius:18px 18px 18px 6px;min-height:150px;padding:22px}.v2-metric-board span{color:var(--v2-muted);font-size:12px}.v2-metric-board strong{margin:17px 0 11px;font-family:Georgia,serif;font-size:38px;display:block}.v2-metric-board small{color:var(--v2-accent)}.v2-admin-split{grid-template-columns:1fr 1fr;gap:18px;display:grid}.v2-admin-panel{margin-bottom:18px}.v2-admin-panel h2{margin:0 0 20px;font-size:23px}.v2-plan-list{gap:9px;display:grid}.v2-plan-list>div{background:#f3efe7;border-radius:11px;grid-template-columns:1fr auto;gap:5px 16px;padding:15px;display:grid}.v2-plan-list>div small{color:var(--v2-muted);grid-column:1/-1}.v2-plan-list>div span{color:var(--v2-accent);font-size:12px}.v2-snapshot{grid-template-columns:1fr 1fr;gap:10px;display:grid}.v2-snapshot p{background:#f3efe7;border-radius:11px;gap:8px;margin:0;padding:16px;display:grid}.v2-snapshot span{color:var(--v2-muted);font-size:11px}.v2-snapshot b{font-family:Georgia,serif;font-size:26px}.v2-panel-head{align-items:center;margin-bottom:20px}.v2-panel-head h2{margin-bottom:0}.v2-panel-head input{max-width:320px}.v2-user-layout,.v2-code-layout{grid-template-columns:minmax(0,1fr) 310px;gap:18px;display:grid}.v2-data-list{border:1px solid var(--v2-line);border-radius:13px;max-height:620px;overflow:auto}.v2-data-list>button{width:100%;color:var(--v2-ink);text-align:left;border-bottom:1px solid var(--v2-line);background:#fffdf8;justify-content:space-between;align-items:center;gap:12px;padding:14px;display:flex}.v2-data-list>button:hover,.v2-data-list>button.is-selected{background:#eaf0eb}.v2-rule-row{border-bottom:1px solid var(--v2-line);background:#fffdf8;grid-template-columns:minmax(0,1fr) auto auto;align-items:center;gap:12px;padding:14px;display:grid}.v2-rule-row>span{gap:4px;min-width:0;display:grid}.v2-rule-row>i{color:var(--v2-muted);font-size:11px;font-style:normal}.v2-rule-row>i.is-active{color:var(--v2-success)}.v2-rule-row>i.is-disabled{color:var(--v2-danger)}.v2-data-list span{gap:4px;min-width:0;display:grid}.v2-data-list small{color:var(--v2-muted)}.v2-data-list i{color:var(--v2-muted);flex:none;font-size:11px;font-style:normal}.v2-data-list i.is-active{color:var(--v2-success)}.v2-data-list i.is-disabled{color:var(--v2-danger)}.v2-detail-card{background:#f3efe7;border-radius:14px;flex-direction:column;align-self:start;gap:12px;padding:20px;display:flex}.v2-detail-card>span{color:var(--v2-accent);font-size:11px}.v2-detail-card h3,.v2-detail-card p{margin:0}.v2-detail-card p{color:var(--v2-muted)}.v2-detail-card dl{gap:8px;margin:8px 0;display:grid}.v2-detail-card dl div{justify-content:space-between;gap:12px;display:flex}.v2-detail-card dt{color:var(--v2-muted)}.v2-detail-card dd{text-align:right;margin:0}.v2-detail-card h4{margin:8px 0 0}.v2-detail-card small{color:var(--v2-muted)}.v2-detail-card.is-empty{min-height:220px;color:var(--v2-muted);place-items:center;display:grid}.v2-compact-form{grid-template-columns:1fr 100px 120px;gap:12px;display:grid}.v2-compact-form button{grid-column:1/-1}.v2-task-table{border:1px solid var(--v2-line);border-radius:12px;overflow:hidden}.v2-task-table>div{border-bottom:1px solid var(--v2-line);background:#fffdf8;grid-template-columns:1.2fr 1fr 160px;align-items:center;gap:16px;padding:13px 15px;display:grid}.v2-task-table span{gap:3px;display:grid}.v2-task-table small,.v2-task-table i{color:var(--v2-muted);font-size:11px;font-style:normal}.v2-task-table strong{text-align:right;font-size:12px}.v2-task-table strong.is-completed{color:var(--v2-success)}.v2-task-table strong.is-failed{color:var(--v2-danger)}.v2-task-table strong.is-active{color:var(--v2-success)}.v2-task-table strong.is-disabled{color:var(--v2-danger)}.v2-inline-actions{flex-wrap:wrap;gap:9px;margin-top:14px;display:flex}.v2-inline-actions select{flex:150px}.v2-inline-actions button,.v2-row-actions button{color:#fff;background:var(--v2-ink-2);border-radius:8px;padding:8px 12px}.v2-row-actions{justify-content:flex-end;display:flex!important}.v2-code-list{max-height:470px}.v2-detail-card label{color:var(--v2-muted);gap:6px;font-size:11px;display:grid}.v2-detail-card input{width:100%;color:var(--v2-ink);border:1px solid var(--v2-line);background:#fffdf8;border-radius:8px;padding:10px 11px}.v2-task-actions{justify-content:flex-end;gap:6px;display:flex}.v2-task-actions button{color:var(--v2-ink-2);background:#e7eee9;border-radius:7px;padding:6px 9px}.v2-catalog-json{resize:vertical;width:100%;min-height:210px;color:var(--v2-ink);border:1px solid var(--v2-line);background:#f8f5ee;border-radius:10px;margin-bottom:12px;padding:13px;font:12px/1.6 Consolas,monospace}.v2-catalog-editor{grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:18px;display:grid}.v2-lesson-editor{gap:12px;display:grid}.v2-lesson-editor>label{color:var(--v2-muted);gap:7px;font-size:11px;display:grid}.v2-lesson-editor textarea{resize:vertical;min-height:90px;color:var(--v2-ink);border:1px solid var(--v2-line);background:#f8f5ee;border-radius:9px;padding:11px}.v2-lesson-editor>label input{width:100%}.v2-json-report{color:#dce9e4;white-space:pre-wrap;background:#172a26;border-radius:12px;max-height:620px;padding:18px;font:12px/1.65 Consolas,monospace;overflow:auto}.v2-empty-state{background:#f3efe7;border-radius:14px;padding:80px 20px}.v2-empty-state b{color:var(--v2-ink);margin-bottom:8px;font-family:Noto Serif SC,STSong,serif;font-size:20px;display:block}.v2-loading-card{color:var(--v2-muted);text-align:center;padding:80px}@media (width<=1180px){.v2-form-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.v2-home-grid{grid-template-columns:1fr}.v2-welcome{min-height:340px}.v2-question-types{grid-template-columns:repeat(2,minmax(0,1fr))}.v2-metric-board{grid-template-columns:1fr 1fr}}@media (width<=820px){.v2-app{padding-bottom:76px;display:block}.v2-sidebar{z-index:40;border-top:1px solid #ffffff1f;width:auto;height:72px;padding:8px 10px;display:block;position:fixed;inset:auto 0 0}.v2-brand,.v2-sidebar-foot{display:none}.v2-sidebar nav{justify-content:space-around;gap:2px;display:flex}.v2-sidebar nav button{text-align:center;flex-direction:column;flex:1;justify-content:center;gap:3px;min-width:0;min-height:54px;padding:5px 2px;display:flex}.v2-sidebar nav button i{font-size:8px}.v2-sidebar nav button span{white-space:nowrap;font-size:11px}.v2-sidebar nav button.is-active:after{display:none}.v2-admin-sidebar nav{justify-content:flex-start;overflow-x:auto}.v2-admin-sidebar nav button{min-width:78px}.v2-main{padding:24px 16px 36px}.v2-page-header{margin-bottom:22px}.v2-page-header h1{font-size:27px}.v2-section-heading{flex-direction:column;align-items:flex-start;gap:8px}.v2-section-heading p{text-align:left}.v2-form-grid{grid-template-columns:1fr}.v2-span-2{grid-column:auto}.v2-type-group,.v2-question-types,.v2-library-grid,.v2-membership-grid,.v2-admin-split,.v2-catalog-editor,.v2-user-layout,.v2-code-layout{grid-template-columns:1fr}.v2-preview-panel{border-radius:0;inset:0}.v2-preview-body.is-editing{grid-template-columns:1fr;overflow:auto}.v2-document-editor{border-bottom:1px solid #c8c0b2;border-right:0;max-height:48vh}.v2-preview-toolbar{flex-direction:column;align-items:flex-start;gap:8px}.v2-preview-toolbar>div:last-child{width:100%;overflow-x:auto}.v2-preview-toolbar button{flex:none}.v2-paper-stage{justify-content:start;padding:10px}.v2-paper-stage iframe{transform-origin:0 0;width:1120px;max-width:none;height:calc(100vh - 116px)}.v2-auth{background:linear-gradient(150deg,#12342d 0 34%,#f3eee4 34%);min-height:100vh;padding:22px 16px;display:block}.v2-auth-story{background:0 0;min-height:230px;padding:12px 8px 35px}.v2-auth-copy{margin:auto 0 0}.v2-auth-copy h1{margin:16px 0 8px;font-size:34px}.v2-auth-copy p,.v2-auth-story footer{display:none}.v2-auth-form{width:100%;padding:26px 22px}.v2-auth-double{grid-template-columns:1fr}.v2-metric-board{grid-template-columns:1fr 1fr}.v2-task-table>div{grid-template-columns:1fr;gap:5px}.v2-task-table strong{text-align:left}}@media (width<=520px){.v2-home-cards{grid-template-columns:1fr 1fr}.v2-home-cards button{min-height:140px;padding:17px}.v2-home-cards span{font-size:17px}.v2-welcome{min-height:320px;padding:30px 24px}.v2-welcome h2{font-size:35px}.v2-composer,.v2-library,.v2-membership,.v2-admin-panel{border-radius:18px 18px 18px 6px;padding:20px 15px}.v2-type-groups{padding:12px}.v2-inline-options{flex-direction:column;align-items:stretch;gap:8px}.v2-membership-hero{padding:26px 20px}.v2-membership-hero h2{font-size:32px}.v2-quota-line{gap:1px;display:grid}.v2-metric-board,.v2-compact-form{grid-template-columns:1fr}.v2-compact-form button{grid-column:auto}}