:root{--bg: #eef2ee;--bg-paper: #f3f6f2;--surface: rgba(252, 253, 251, .88);--surface-solid: #fbfcfa;--surface-muted: #e5ece5;--line: rgba(48, 72, 58, .15);--line-strong: rgba(48, 72, 58, .28);--text: #1e2b24;--text-soft: #52645a;--text-faint: #7d8e84;--accent: #2d6a4f;--accent-strong: #1f4d39;--accent-soft: #dcece1;--shadow-soft: 0 20px 50px rgba(30, 43, 36, .08);--shadow-card: 0 14px 34px rgba(30, 43, 36, .06);--radius-lg: 28px;--radius-md: 18px;--radius-sm: 12px;--space-1: clamp(.5rem, .4rem + .3vw, .8rem);--space-2: clamp(.9rem, .8rem + .5vw, 1.25rem);--space-3: clamp(1.3rem, 1.1rem + .7vw, 1.8rem);--space-4: clamp(1.8rem, 1.45rem + 1vw, 2.6rem);--space-5: clamp(2.4rem, 2rem + 1.5vw, 3.6rem);--ease-out: cubic-bezier(.22, 1, .36, 1)}*{box-sizing:border-box}html{font-family:"Noto Serif SC","Source Han Serif SC",Songti SC,serif;background:linear-gradient(180deg,#f4f8f3f0,#eaf0eafa),radial-gradient(circle at top,rgba(111,161,125,.14),transparent 42%);color:var(--text)}body{margin:0;background:transparent}body.paper-mode{background:var(--bg-paper)}a{color:inherit}img{max-width:100%;display:block}.shell{width:min(1120px,calc(100% - 36px));margin:0 auto;padding:18px 0 72px}.shell-paper{width:min(1024px,calc(100% - 40px));padding-top:12px}.site-main{min-width:0}.site-header{margin-bottom:var(--space-4)}.masthead{display:flex;justify-content:space-between;align-items:center;gap:var(--space-2);padding:18px 22px;border:1px solid var(--line);border-radius:calc(var(--radius-lg) + 4px);background:var(--surface);box-shadow:var(--shadow-soft);backdrop-filter:blur(12px)}.brand{display:inline-flex;align-items:center;gap:14px;text-decoration:none}.brand-copy strong,.dashboard-title,.catalog-title,.paper-page-title,.section-head h1,.section-head h2,.subject-panel h3,.search-card h2,.paper-heading-block h3,.paper-heading-block h4{font-family:LXGW WenKai,STKaiti,cursive}.brand-copy{display:grid;gap:4px}.brand-copy small{color:var(--text-faint);font-size:.92rem}.brand-mark{display:grid;place-items:center;width:46px;height:46px;border-radius:14px;background:linear-gradient(145deg,#2d6a4f,#4d8f70);color:#f5fbf6;font-weight:700;box-shadow:inset 0 1px #ffffff38}.site-nav{display:inline-flex;align-items:center;gap:8px;flex-wrap:wrap}.site-nav a,.primary-link,.panel-link{transition:color .22s var(--ease-out),background-color .22s var(--ease-out),transform .22s var(--ease-out),border-color .22s var(--ease-out),box-shadow .22s var(--ease-out)}.site-nav a{text-decoration:none;color:var(--text-soft);padding:9px 14px;border-radius:999px}.site-nav a:hover,.site-nav a:focus-visible{color:var(--accent-strong);background:#8f4f2014}.ghost-link{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border-radius:999px;border:1px solid rgba(143,79,32,.18);background:#fffdf9b8;color:var(--text);text-decoration:none;transition:color .22s var(--ease-out),border-color .22s var(--ease-out),transform .22s var(--ease-out),background-color .22s var(--ease-out)}.ghost-link:hover,.ghost-link:focus-visible{color:var(--accent-strong);border-color:#8f4f2052;background:#fff8f0f2;transform:translateY(-1px)}.motion-rise{animation:rise-in .58s var(--ease-out) both}.motion-delay-1{animation-delay:.08s}.motion-delay-2{animation-delay:.16s}.kicker,.subject-label,.eyebrow{margin:0 0 8px;color:var(--accent);font-size:.78rem;letter-spacing:.1em;text-transform:uppercase}.dashboard,.section-shell,.catalog-hero,.search-shell,.paper-answer-sheet,.subject-panel,.search-card{border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow-card)}.dashboard{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(260px,.8fr);gap:var(--space-4);padding:var(--space-4);border-radius:var(--radius-lg)}.dashboard-title,.catalog-title,.paper-page-title{margin:0;line-height:1.02;color:var(--text)}.dashboard-title{font-size:clamp(2.3rem,3.4vw,4.2rem);max-width:12ch}.dashboard-copy,.catalog-copy,.section-head p,.subject-description,.muted,.search-empty,.inline-meta,.catalog-item-main span{color:var(--text-soft)}.dashboard-copy{max-width:54ch;margin:14px 0 0;line-height:1.9}.dashboard-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:var(--space-3)}.primary-link{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border-radius:999px;background:var(--accent);color:#fff8f1;text-decoration:none;box-shadow:0 10px 20px #8f4f2029}.primary-link:hover,.primary-link:focus-visible,.panel-link:hover,.panel-link:focus-visible{transform:translateY(-1px)}.primary-link:hover,.primary-link:focus-visible{background:var(--accent-strong)}.metric-strip{display:grid;gap:12px;align-content:start}.metric{padding:18px;border-radius:var(--radius-md);background:var(--surface-solid);border:1px solid rgba(143,79,32,.12)}.metric-label{display:block;color:var(--text-faint);font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;margin-bottom:8px}.metric strong,.catalog-metrics strong{display:block;font-size:clamp(1.4rem,2vw,2rem);color:var(--text)}.section-shell,.search-shell{margin-top:var(--space-4);padding:var(--space-4);border-radius:var(--radius-lg)}.section-head{display:grid;gap:8px;margin-bottom:var(--space-3)}.section-head h1,.section-head h2{margin:0;font-size:clamp(1.55rem,2.2vw,2.35rem);color:var(--text)}.section-head p{margin:0;line-height:1.8}.home-hero{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(320px,.78fr);gap:clamp(1rem,.8rem + 1.2vw,2rem);align-items:stretch;min-height:auto}.home-hero-copy{display:flex;flex-direction:column;justify-content:center;min-height:520px;padding:clamp(1.8rem,1.4rem + 1.2vw,2.8rem);border-radius:28px;border:1px solid rgba(48,72,58,.12);background:linear-gradient(140deg,#fbfdfbfa,#f1f6f1f5);box-shadow:0 18px 42px #1e2b240f}.home-tag{margin:0 0 12px;color:var(--accent);font-size:.74rem;letter-spacing:.22em;text-transform:uppercase}.home-title{margin:0;max-width:14ch;font-family:LXGW WenKai,STKaiti,cursive;font-size:clamp(2rem,3vw,3.4rem);line-height:1.12;letter-spacing:-.01em;text-wrap:balance}.home-copy{max-width:40ch;margin:18px 0 0;color:var(--text-soft);font-size:.98rem;line-height:1.9}.home-actions,.home-inline-note{display:flex;flex-wrap:wrap;align-items:center}.home-actions{gap:12px;margin-top:22px}.home-inline-note{gap:10px 18px;margin-top:18px;color:var(--text-faint);font-size:.94rem}.home-inline-note span{position:relative}.home-inline-note span+span:before{content:"";display:inline-block;width:4px;height:4px;margin-right:10px;border-radius:999px;background:#8f4f2057;vertical-align:middle}.home-entry{display:grid;gap:16px;padding:clamp(1.3rem,1.1rem + .8vw,1.9rem);border-radius:24px;border:1px solid rgba(48,72,58,.12);background:linear-gradient(180deg,#f8fbf8fa,#f2f7f3f5);box-shadow:0 16px 34px #1e2b240d}.home-entry-head h2,.atlas-card h3{margin:0;font-family:LXGW WenKai,STKaiti,cursive}.home-entry-list{display:grid;gap:8px}.home-entry-item{display:grid;grid-template-columns:44px minmax(0,1fr);gap:12px;align-items:center;padding:14px;border-radius:16px;border:1px solid rgba(48,72,58,.12);background:#fcfdfbe0;color:inherit;text-decoration:none;transition:transform .22s var(--ease-out),border-color .22s var(--ease-out),box-shadow .22s var(--ease-out),background-color .22s var(--ease-out)}.home-entry-item:hover,.home-entry-item:focus-visible{transform:translate(3px);border-color:#2d6a4f3d;box-shadow:0 12px 24px #1e2b240f;background:#f5f9f6fa}.home-entry-index{color:var(--text-faint);font-size:.8rem;letter-spacing:.1em}.home-entry-main{display:grid;gap:2px}.home-entry-main strong{font-size:1rem}.home-entry-main span{color:var(--text-faint);font-size:.88rem}.home-entry-foot{display:flex;flex-wrap:wrap;gap:8px 16px;padding-top:2px;color:var(--text-faint);font-size:.88rem}.home-categories{margin-top:var(--space-4)}.home-categories-head{margin-bottom:var(--space-3)}.home-categories-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.home-category-card{display:grid;gap:14px;padding:18px;border-radius:22px;border:1px solid rgba(48,72,58,.12);background:#fcfdfbc2;color:inherit;text-decoration:none;box-shadow:0 12px 28px #1e2b240d;transition:transform .22s var(--ease-out),border-color .22s var(--ease-out),box-shadow .22s var(--ease-out),background-color .22s var(--ease-out)}.home-category-card:hover,.home-category-card:focus-visible{transform:translateY(-2px);border-color:#2d6a4f3d;box-shadow:0 18px 34px #1e2b2412;background:#f6faf6fa}.home-category-top{display:flex;justify-content:space-between;gap:10px;align-items:center}.home-category-top strong{font-family:LXGW WenKai,STKaiti,cursive;font-size:1.15rem}.home-category-top span,.home-category-card p{color:var(--text-soft)}.home-category-card p{margin:0;line-height:1.8;font-size:1rem}.home-category-years{display:flex;flex-wrap:wrap;gap:8px}.home-category-years span{display:inline-flex;align-items:center;min-height:30px;padding:0 10px;border-radius:999px;background:#2d6a4f14;color:var(--accent-strong);font-size:.88rem}.subject-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.subject-panel{display:grid;gap:18px;padding:22px;border-radius:calc(var(--radius-md) + 4px)}.subject-panel-top,.catalog-item,.recent-item,.search-card-top,.paper-header,.paper-header-meta,.catalog-item-side{display:flex;justify-content:space-between;gap:14px}.subject-panel h3,.search-card h2{margin:0}.subject-count,.search-year{color:var(--text-faint);font-size:.92rem}.subject-year-list,.catalog-list,.recent-list,.search-results{display:grid;gap:10px}.list-reset{list-style:none;padding:0;margin:0}.subject-year-item a,.recent-item,.catalog-item{border-radius:var(--radius-sm);background:var(--surface-solid);border:1px solid rgba(143,79,32,.12)}.subject-year-item a{display:flex;justify-content:space-between;align-items:center;gap:10px;min-height:48px;padding:0 14px;text-decoration:none}.subject-year-item a:hover,.subject-year-item a:focus-visible,.recent-item:hover,.recent-item:focus-visible,.catalog-item:hover,.catalog-item:focus-within,.search-card:hover{border-color:#8f4f2047;box-shadow:0 14px 28px #49342012;transform:translateY(-1px)}.panel-link{color:var(--accent);text-decoration:none;width:fit-content}.recent-item{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;text-decoration:none}.recent-subject{margin:0 0 5px;color:var(--text-faint);font-size:.92rem}.breadcrumbs,.paper-breadcrumbs{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:18px;color:var(--text-faint);font-size:.94rem}.breadcrumbs a,.paper-breadcrumbs a{text-decoration:none}.breadcrumbs a:hover,.paper-breadcrumbs a:hover{color:var(--accent)}.catalog-page,.search-page{display:grid;gap:0}.catalog-hero{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(260px,.7fr);gap:var(--space-4);padding:var(--space-4);border-radius:var(--radius-lg)}.catalog-metrics{display:grid;gap:12px;align-content:start}.catalog-metrics div{padding:16px 18px;border-radius:var(--radius-md);background:var(--surface-solid);border:1px solid rgba(143,79,32,.12)}.catalog-metrics span{display:block;margin-bottom:8px;color:var(--text-faint);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase}.catalog-list{gap:12px}.catalog-group-list{display:grid;gap:12px}.catalog-group{border:1px solid rgba(48,72,58,.12);border-radius:18px;background:#fcfdfbd1;overflow:hidden}.catalog-group-summary{display:flex;align-items:center;min-height:54px;padding:0 18px;cursor:pointer;list-style:none;color:var(--text);background:#2d6a4f0a}.catalog-group-summary::-webkit-details-marker,.catalog-group-summary::marker{display:none}.catalog-group-summary span{position:relative;padding-left:16px;font-family:LXGW WenKai,STKaiti,cursive;font-size:1.08rem}.catalog-group-summary span:before{content:"▸";position:absolute;left:0;top:50%;transform:translateY(-50%);color:var(--accent);transition:transform .22s var(--ease-out)}.catalog-group[open] .catalog-group-summary span:before{transform:translateY(-50%) rotate(90deg)}.catalog-group .catalog-list{padding:14px}.catalog-item{align-items:center;padding:18px}.catalog-item-main p,.catalog-item-main span{margin:4px 0 0}.catalog-item-side{align-items:center;flex-wrap:wrap}.catalog-item-side em{color:var(--text-faint);font-style:normal}.catalog-item-side a{color:var(--accent);text-decoration:none}.tool-search-form{margin-bottom:14px}.search-label{display:block;margin-bottom:10px;color:var(--text-soft);font-size:.92rem}.search-form input{width:100%;min-height:52px;padding:0 16px;border:1px solid var(--line);border-radius:14px;background:#fffdf9;color:var(--text);font:inherit;transition:border-color .22s var(--ease-out),box-shadow .22s var(--ease-out),transform .22s var(--ease-out)}.search-form input:focus{outline:none;border-color:#8f4f206b;box-shadow:0 0 0 4px #8f4f2014}.search-card{padding:18px;border-radius:var(--radius-md)}.chip-row{display:flex;flex-wrap:wrap;gap:10px}.chip{display:inline-flex;align-items:center;min-height:34px;padding:0 10px;border-radius:999px;background:#8f4f2014;color:var(--text-soft);border:1px solid rgba(143,79,32,.08);font-size:.9rem}.empty-line{color:var(--text-faint);padding:4px 0}.paper-page{max-width:980px;margin:0 auto}.paper-header{align-items:end;margin-bottom:18px;gap:18px}.paper-header-meta{align-items:center;flex-wrap:wrap;color:var(--text-faint);font-size:.92rem}.paper-header-meta a{color:var(--accent);text-decoration:none}.paper-answer-sheet{margin:0 0 var(--space-4);border-radius:var(--radius-md);overflow:hidden}.elegant-summary{display:flex;justify-content:space-between;align-items:center;min-height:54px;padding:0 18px;cursor:pointer;color:var(--text);list-style:none;background:var(--surface-solid)}.elegant-summary:after{content:"›";font-size:1.2rem;color:var(--accent);transition:transform .22s var(--ease-out)}details[open]>.elegant-summary:after{transform:rotate(90deg)}.elegant-summary::-webkit-details-marker,.elegant-summary::marker,.paper-answer-detail summary::-webkit-details-marker,.paper-answer-detail summary::marker{display:none}.elegant-detail-content{padding:12px 18px 18px;background:var(--surface-solid)}.elegant-detail-content table{width:100%;border-collapse:collapse;font-size:.95rem}.elegant-detail-content td{padding:7px 8px;border-bottom:1px solid rgba(91,68,44,.08)}.elegant-detail-content tr:last-child td{border-bottom:0}.answer-no{width:44px;color:var(--text-faint)}.answer-value{width:52px;color:var(--accent-strong);font-weight:700}.paper-document-html,.paper-document{border-top:1px solid rgba(91,68,44,.08);padding-top:var(--space-3)}.paper-document-html h2,.paper-document-html h3,.paper-document-html h4,.paper-document-html h5,.paper-heading-block h3,.paper-heading-block h4{color:var(--text)}.paper-document-html h2{font-family:LXGW WenKai,STKaiti,cursive;font-size:clamp(1.8rem,2.4vw,2.4rem);margin:0 0 20px}.paper-document-html h3,.paper-heading-block h3{margin:28px 0 16px;font-size:clamp(1.5rem,2vw,2rem)}.paper-document-html h4,.paper-heading-block h4{margin:18px 0 12px;font-size:clamp(1.18rem,1.6vw,1.5rem);font-weight:500}.paper-document-html h5{margin:24px 0 14px;font-size:1.35rem;font-weight:500}.question-body,.question-body-plain,.paper-document-html p,.paper-document-html li,.paper-question-content .question-body p,.paper-question-content .question-body li{font-size:1rem;line-height:1.9;color:var(--text)}.paper-document-html ol,.paper-document-html ul{padding-left:1.45rem}.paper-document-html .img-container{width:min(100%,720px)!important;margin:18px 0}.paper-document-html img{border-radius:8px;border:1px solid rgba(91,68,44,.08)}.paper-document-html .katex-display{overflow-x:auto;overflow-y:hidden;padding:10px 0}.paper-document-html .katex{font-size:1.05em}.paper-entry{margin-bottom:36px}.paper-question-no{margin:18px 0 14px;color:var(--accent-strong);font-size:1.45rem}.paper-question-content .question-body h2{display:none}.choice-container{margin:18px 0;padding:18px;border:1px solid rgba(143,79,32,.2);border-radius:var(--radius-sm);background:#ffffffd6;transition:transform .2s var(--ease-out),box-shadow .2s var(--ease-out),border-color .2s var(--ease-out)}.choice-container form,.choice-inline{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;padding-top:12px;border-top:1px solid rgba(91,68,44,.08)}.choice-option,.choice-option-inline{display:flex;align-items:center;gap:10px;min-height:56px;padding:0 14px;border:1px solid rgba(143,79,32,.22);border-radius:10px;background:#fffdf9;cursor:pointer;transition:transform .18s var(--ease-out),border-color .18s var(--ease-out),background-color .18s var(--ease-out),box-shadow .18s var(--ease-out)}.choice-option input,.choice-option-inline input{margin:0;accent-color:var(--accent)}.choice-label{color:var(--accent);font-weight:700}.choice-option:hover,.choice-option-inline:hover{transform:translateY(-1px);border-color:#8f4f206b;background:#fff8f0;box-shadow:0 10px 22px #49342014}.choice-option:has(input:checked),.choice-option-inline:has(input:checked){transform:translateY(-1px);border-color:var(--accent);background:#fff3e3;box-shadow:0 12px 24px #8f4f201f}.choice-option:has(input:checked) .choice-label,.choice-option-inline:has(input:checked) .choice-label{color:var(--accent-strong)}.choice-container:has(input:checked){border-color:#8f4f2059;box-shadow:0 12px 28px #49342014}.paper-choice-actions{display:flex;justify-content:center;gap:28px;margin-top:18px;color:var(--text-soft);font-size:.95rem;opacity:.9;transition:transform .2s var(--ease-out),opacity .2s var(--ease-out)}.choice-container:hover .paper-choice-actions,.choice-container:has(input:checked) .paper-choice-actions{opacity:1;transform:translateY(-1px)}.paper-choice-actions a,.paper-choice-actions span{text-decoration:none}.paper-answer-detail summary{cursor:pointer;list-style:none;color:var(--accent)}.paper-answer-content{margin-top:12px;padding-top:12px;border-top:1px solid rgba(91,68,44,.08)}.paper-answer-detail-plain{margin-top:16px}.paper-favorite-link{color:var(--text-faint)}.paper-favorite-button{appearance:none;border:0;padding:0;background:transparent;color:var(--text-faint);font:inherit;cursor:pointer;transition:color .2s var(--ease-out),transform .2s var(--ease-out),opacity .2s var(--ease-out)}.paper-favorite-button:hover,.paper-favorite-button:focus-visible{color:var(--accent);transform:translateY(-1px)}.paper-favorite-button:focus-visible{outline:none;box-shadow:0 2px #2d6a4f47}.paper-favorite-button.is-active{color:var(--accent-strong)}.paper-favorite-button.is-active:before{content:"★";margin-right:.35rem;font-size:.82em}@keyframes rise-in{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}@media(max-width:900px){.home-hero,.home-categories-grid,.dashboard,.catalog-hero,.subject-grid{grid-template-columns:1fr}.masthead,.subject-panel-top,.catalog-item,.catalog-item-side,.paper-header,.paper-header-meta{flex-direction:column;align-items:flex-start}.choice-container form,.choice-inline{grid-template-columns:1fr}.paper-choice-actions{flex-direction:column;align-items:center;gap:10px}.home-entry-item{grid-template-columns:1fr;align-items:start}.home-title{max-width:12ch;font-size:clamp(2rem,10vw,3.1rem)}}@media(max-width:1200px){.home-categories-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:720px){.home-categories-grid{grid-template-columns:1fr}.home-hero-copy{min-height:auto}.home-title{max-width:12ch}}.paper-mode-switch{margin:0 0 var(--space-3);padding:18px 20px;border-radius:var(--radius-md);border:1px solid var(--line);background:color-mix(in srgb,var(--surface) 90%,white);box-shadow:var(--shadow-card)}.paper-mode-switch-head{display:flex;justify-content:space-between;gap:18px;align-items:end;margin-bottom:16px}.paper-mode-switch-head h2,.paper-game-intro h2,.paper-game-summary-head h3{margin:0;font-family:LXGW WenKai,STKaiti,cursive}.paper-mode-switch-head p:last-child,.paper-game-intro p:last-child,.paper-game-warning,.paper-game-selection-hint,.paper-game-summary-wrong p,.paper-game-result-answer{color:var(--text-soft)}.paper-mode-switch-actions{display:inline-flex;flex-wrap:wrap;gap:10px}.paper-mode-chip{min-height:42px;padding:0 16px;border-radius:999px;border:1px solid rgba(45,106,79,.18);background:#ffffffb8;color:var(--text-soft);cursor:pointer;transition:transform .22s var(--ease-out),background-color .22s var(--ease-out),border-color .22s var(--ease-out),color .22s var(--ease-out),box-shadow .22s var(--ease-out)}.paper-mode-chip:hover,.paper-mode-chip:focus-visible,.paper-game-option:hover,.paper-game-option:focus-visible,.paper-game-submit:hover,.paper-game-next:hover{transform:translateY(-1px)}.paper-mode-chip.is-active{background:var(--accent);color:#f5fbf6;border-color:transparent;box-shadow:0 10px 22px #1f4d392e}.paper-game-shell{border-top:1px solid rgba(48,72,58,.12);padding-top:var(--space-3)}.paper-game-intro{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:18px}.paper-game-warning{margin:0 0 18px;padding:12px 14px;border-radius:14px;border:1px solid rgba(45,106,79,.16);background:#dcece1a8}.paper-game-board,.paper-game-card,.paper-game-summary{border:1px solid var(--line);background:color-mix(in srgb,var(--surface) 92%,white);box-shadow:var(--shadow-card);border-radius:calc(var(--radius-md) + 2px)}.paper-game-board{overflow:hidden}.paper-game-status{padding:18px 20px;border-bottom:1px solid rgba(48,72,58,.12);background:linear-gradient(180deg,#dcece1b8,#ffffffa8)}.paper-game-progress-meta,.paper-game-stats,.paper-game-result-head,.paper-game-summary-grid,.paper-game-summary-actions{display:flex;justify-content:space-between;gap:12px;align-items:center}.paper-game-progress-meta{margin-bottom:12px;color:var(--text-soft);font-size:.94rem}.paper-game-progress-track{height:10px;border-radius:999px;background:#2d6a4f14;overflow:hidden}.paper-game-progress-bar{width:0;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--accent),color-mix(in srgb,var(--accent) 72%,white));transition:width .35s var(--ease-out)}.paper-game-stats{margin-top:14px}.paper-game-stat{min-width:0;flex:1;padding:14px;border-radius:16px;background:#ffffffbf;border:1px solid rgba(45,106,79,.1)}.paper-game-stat span,.paper-game-summary-grid span{display:block;color:var(--text-faint);font-size:.82rem;margin-bottom:6px}.paper-game-stat strong,.paper-game-summary-grid strong{font-size:clamp(1.1rem,2vw,1.5rem);color:var(--text)}.paper-game-stat-streak.is-hot strong{animation:streak-pop .42s var(--ease-out);color:var(--accent-strong)}.paper-game-card,.paper-game-summary{padding:22px}.paper-game-question-head{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-bottom:18px}.paper-game-question-head h3{margin:0;font-size:clamp(1.25rem,1.8vw,1.6rem)}.paper-game-question-tag{display:inline-flex;align-items:center;min-height:34px;padding:0 12px;border-radius:999px;background:#2d6a4f1a;color:var(--accent-strong);font-size:.88rem}.paper-game-question-body{margin-bottom:20px}.paper-game-options{display:grid;gap:12px}.paper-game-option{display:flex;align-items:flex-start;gap:12px;width:100%;padding:16px 18px;border-radius:16px;border:1px solid rgba(45,106,79,.14);background:#ffffffd6;color:var(--text);text-align:left;cursor:pointer;transition:transform .18s var(--ease-out),border-color .18s var(--ease-out),box-shadow .18s var(--ease-out),background-color .18s var(--ease-out)}.paper-game-option-mark{display:inline-grid;place-items:center;width:32px;height:32px;border-radius:999px;background:#2d6a4f14;color:var(--accent-strong);font-weight:700;flex:none}.paper-game-option-text{line-height:1.8}.paper-game-option.is-selected{border-color:#2d6a4f70;background:#dcece1b8;box-shadow:0 12px 24px #1f4d391a}.paper-game-option.is-correct{border-color:#2d6a4f85;background:#dcece1eb}.paper-game-option.is-wrong{border-color:#a44c365c;background:#f7e9e4e0}.paper-game-option:disabled{cursor:default}.paper-game-selection-hint{margin:12px 0 0;min-height:1.6rem;font-size:.94rem}.paper-game-controls{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}.paper-game-submit,.paper-game-next,.paper-game-summary-actions .primary-link,.paper-game-summary-actions .ghost-link{border:0;cursor:pointer;font:inherit}.paper-game-submit:disabled{opacity:.48;cursor:not-allowed;transform:none}.paper-game-result{margin-top:18px;padding:18px;border-radius:18px;border:1px solid rgba(45,106,79,.12);background:#ffffffd1;animation:result-in .3s var(--ease-out)}.paper-game-result.is-success{border-color:#2d6a4f38;background:#dcece1d1}.paper-game-result.is-fail{border-color:#a44c362e;background:#f8ede9e0}.paper-game-result-head strong{font-size:1rem}.paper-game-result-body{margin-top:12px;border-top:1px solid rgba(48,72,58,.1);padding-top:12px}.paper-game-summary-grid{margin:18px 0;flex-wrap:wrap}.paper-game-summary-grid>div{flex:1;min-width:180px;padding:16px;border-radius:16px;background:#ffffffc2;border:1px solid rgba(45,106,79,.1)}.paper-game-summary-wrong{margin-top:14px;padding-top:14px;border-top:1px solid rgba(48,72,58,.1)}.paper-game-summary-wrong h4{margin:0 0 10px}.paper-game-summary-actions{margin-top:18px;justify-content:flex-start;flex-wrap:wrap}@keyframes result-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes streak-pop{0%{transform:scale(1)}55%{transform:scale(1.08)}to{transform:scale(1)}}.favorites-page{display:grid;gap:var(--space-3)}.favorites-shell{display:grid;gap:var(--space-3);padding:var(--space-4);border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow-card)}.favorites-toolbar{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2);flex-wrap:wrap}.favorites-count{margin:0;color:var(--text-soft)}.favorites-empty{padding:var(--space-4);border:1px dashed var(--line-strong);border-radius:calc(var(--radius-md) + 2px);background:#fff6}.favorites-empty h2{margin:0 0 .65rem;font-size:1.15rem}.favorites-empty p{margin:0;color:var(--text-soft);line-height:1.8}.favorites-list{display:grid;gap:var(--space-2)}.favorite-card{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2);padding:1.1rem 1.25rem;border:1px solid var(--line);border-radius:var(--radius-md);background:#ffffff94;transition:transform .22s var(--ease-out),box-shadow .22s var(--ease-out),border-color .22s var(--ease-out)}.favorite-card:hover{transform:translateY(-1px);border-color:var(--line-strong);box-shadow:0 16px 30px #1e2b240d}.favorite-card-main{min-width:0}.favorite-card-main h2{margin:.15rem 0 .4rem;font-size:1.08rem}.favorite-card-paper,.favorite-card-meta{margin:0}.favorite-card-paper{color:var(--accent);font-size:.92rem}.favorite-card-meta{color:var(--text-faint);font-size:.92rem}.favorite-card-actions{display:flex;align-items:center;gap:.8rem;flex-wrap:wrap;justify-content:flex-end}.favorite-remove{appearance:none;border:0;background:transparent;color:var(--text-faint);font:inherit;cursor:pointer;transition:color .22s var(--ease-out),transform .22s var(--ease-out)}.favorite-remove:hover,.favorite-remove:focus-visible{color:var(--accent);transform:translateY(-1px)}@media(max-width:720px){.favorite-card{align-items:flex-start;flex-direction:column}.favorite-card-actions{justify-content:flex-start}}body.pdf-export-mode{background:#fff}body.pdf-export-mode .shell,body.pdf-export-mode .shell-paper{width:min(980px,calc(100% - 24px));padding-top:0;padding-bottom:0}body.pdf-export-mode .motion-rise,body.pdf-export-mode .motion-delay-1,body.pdf-export-mode .motion-delay-2{animation:none!important}body.pdf-export-mode .paper-breadcrumbs,body.pdf-export-mode .paper-mode-switch,body.pdf-export-mode .paper-game-shell,body.pdf-export-mode .paper-choice-actions,body.pdf-export-mode .paper-favorite-button,body.pdf-export-mode .paper-favorite-link,body.pdf-export-mode .site-header{display:none!important}body.pdf-export-mode .paper-page{gap:1.25rem}body.pdf-export-mode .paper-header{padding:0 0 1rem;border-bottom:1px solid rgba(30,43,36,.12)}body.pdf-export-mode .paper-document,body.pdf-export-mode .paper-document-html,body.pdf-export-mode .paper-entry,body.pdf-export-mode .choice-container,body.pdf-export-mode .question-body-plain img,body.pdf-export-mode .katex-display,body.pdf-export-mode table,body.pdf-export-mode blockquote{break-inside:avoid;page-break-inside:avoid}body.pdf-export-mode .paper-document{border:0;box-shadow:none;background:#fff;padding:0}body.pdf-export-mode .paper-entry{padding:1rem 0 1.2rem;border-bottom:1px solid rgba(30,43,36,.08)}body.pdf-export-mode .paper-entry:last-child{border-bottom:0}body.pdf-export-mode .paper-question-no{margin-bottom:.7rem}body.pdf-export-mode .question-body,body.pdf-export-mode .question-body-plain{line-height:1.75;color:#1a1a1a}body.pdf-export-mode .choice-container{margin-top:1rem;border-color:#1e2b241f;box-shadow:none;background:#fff}body.pdf-export-mode .choice-option,body.pdf-export-mode .choice-option-inline{background:#fff;box-shadow:none}body.pdf-export-mode .paper-answer-sheet{margin-bottom:1rem}body.pdf-practice-mode .paper-answer-sheet,body.pdf-practice-mode .paper-answer-detail,body.pdf-practice-mode .paper-answer-content,body.pdf-practice-mode .paper-answer-detail-plain,body.pdf-practice-mode .answer-container,body.pdf-practice-mode .answer,body.pdf-practice-mode .explanation{display:none!important}body.pdf-study-mode .paper-answer-detail,body.pdf-study-mode .paper-answer-sheet,body.pdf-study-mode .question-body details{display:block}body.pdf-study-mode .paper-answer-detail>summary,body.pdf-study-mode .paper-answer-sheet>summary,body.pdf-study-mode .question-body details>summary{display:none!important}body.pdf-study-mode .paper-answer-content,body.pdf-study-mode .paper-answer-detail-plain{display:block!important}@page{size:A4;margin:12mm 10mm}@media print{html,body{background:#fff!important}body{color:#111}a{text-decoration:none}.shell,.shell-paper{width:100%;margin:0;padding:0}.paper-page-title,.paper-heading-block h3,.paper-heading-block h4{color:#111}.paper-document-html img,.question-body-plain img{max-width:100%;height:auto}}