:root{--color-background:#f7f5ee;--color-surface:#fffef9;--color-ink:#292e27;--color-muted:#73786d;--color-primary:#28483d;--color-accent:#8a6b2e;--color-line:#dedfd4;--color-highlight:#eee8cf;--color-danger:#a44038;--color-soft:#efeee5;--color-white:#fff;--color-on-dark:#f6f5e8;--color-good:#2a6e50;--scroll-thumb:#b9bdad;--scroll-track:#f0efe6;--scroll-hover:#949d89;--font-ui:'PingFang SC','Microsoft YaHei',system-ui,sans-serif;--font-reading:Georgia,'Noto Serif SC','Source Han Serif SC',SimSun,serif;--radius:12px;--radius-control:8px;--page-max:1200px}
*{box-sizing:border-box;scrollbar-color:var(--scroll-thumb) var(--scroll-track);scrollbar-width:thin}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--scroll-track)}::-webkit-scrollbar-thumb{background:var(--scroll-thumb);border:2px solid var(--scroll-track);border-radius:8px}::-webkit-scrollbar-thumb:hover{background:var(--scroll-hover)}::-webkit-scrollbar-thumb:active{background:var(--color-muted)}
html{scroll-behavior:smooth;scroll-padding-top:96px}body{margin:0;color:var(--color-ink);background:var(--color-background);font:14px/1.65 var(--font-ui)}button,input{font:inherit}button,a,input,label{touch-action:manipulation}button,a{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}a{color:inherit;text-decoration:none}button{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--color-accent);outline-offset:4px}button:active:not(:disabled){transform:translateY(1px)}[hidden]{display:none!important}.icon{width:20px;height:20px;flex:none;vertical-align:middle}h1,h2,h3,p{margin-top:0}.muted{color:var(--color-muted)}
.skip-link{position:fixed;left:16px;top:-70px;z-index:100;background:var(--color-primary);color:var(--color-white);padding:12px}.skip-link:focus{top:12px}.site-header{background:var(--color-surface);border-bottom:1px solid var(--color-line)}.header-inner{max-width:var(--page-max);margin:auto;min-height:88px;display:flex;align-items:center;gap:40px}.brand{display:flex;gap:12px;align-items:center;color:var(--color-primary);white-space:nowrap}.brand>svg{width:32px;height:32px;fill:none;stroke:currentColor;stroke-width:1.7}.brand>span{font:700 27px var(--font-reading);letter-spacing:3px}.brand small{color:var(--color-muted);border-left:1px solid var(--color-line);padding-left:17px;margin-left:8px;font-size:12px;letter-spacing:1px}.header-inner nav{display:flex;align-self:stretch;gap:35px;margin-left:auto}.header-inner nav>a{display:flex;align-items:center;gap:7px;position:relative;font-size:14px;color:var(--color-muted)}.header-inner nav>a:hover,.header-inner nav>a[aria-current]{color:var(--color-primary)}.header-inner nav>a[aria-current]:after{content:'';height:3px;background:var(--color-primary);position:absolute;bottom:0;left:0;right:0;border-radius:3px}.header-inner nav span{border-radius:12px;background:var(--color-soft);padding:0 6px;font-size:10px;color:var(--color-primary)}.icon-btn{border:1px solid var(--color-line);background:transparent;border-radius:7px;width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;flex:none}.icon-btn:hover:not(:disabled){background:var(--color-soft);border-color:var(--color-accent)}.icon-btn.small{width:29px;height:29px}.icon-btn.small .icon{width:15px;height:15px}.settings-trigger{border:0;letter-spacing:2px;font-weight:700}
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.reader-grid{display:grid;grid-template-columns:224px minmax(0,1fr);gap:32px;align-items:start}.word-sidebar{border:1px solid var(--color-line);border-radius:var(--radius);background:var(--color-surface);padding:18px 16px 0;position:sticky;top:20px}.sidebar-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.sidebar-title h2{font-size:14px;margin:0}.sidebar-title span{font-size:11px;color:var(--color-accent)}.search-box{display:flex;align-items:center;gap:8px;position:relative;border:1px solid var(--color-line);border-radius:7px;min-height:37px;background:var(--color-surface);padding:0 10px}.search-box>.icon{width:15px;height:15px;color:var(--color-muted)}.search-box input{border:0;background:none;outline:none;width:100%;padding:8px 0;font-size:12px;color:var(--color-ink);min-width:0}.search-box:focus-within{outline:2px solid var(--color-accent);outline-offset:2px}.search-box input:focus-visible{outline:0}.search-box 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span{color:var(--color-ink);margin-left:5px}.word-row-bottom{display:flex;align-items:center;justify-content:space-between;gap:3px;margin-top:10px}.bookmark-btn{font-size:10px;display:inline-flex;align-items:center;gap:3px;border:0;padding:0;background:none;color:var(--color-muted);min-height:25px}.bookmark-btn .icon{width:12px;height:12px}.bookmark-btn:hover,.bookmark-btn.saved{color:var(--color-accent)}.saved .icon{fill:var(--color-highlight)}.word-state{font-size:9px;color:var(--color-muted)}.word-state.known{color:var(--color-good)}.sidebar-footer{font-size:9px;display:flex;align-items:center;gap:6px;color:var(--color-muted);padding:13px 0;border-top:1px solid var(--color-line)}.sidebar-footer .icon{width:13px;height:13px}.segmented{display:flex;gap:3px;background:var(--color-soft);padding:4px;border-radius:8px}.segmented button{display:flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:6px;background:transparent;padding:9px 15px;white-space:nowrap;color:var(--color-muted);font-size:12px}.segmented button:hover{color:var(--color-accent)}.segmented button[aria-pressed=true]{background:var(--color-surface);color:var(--color-accent);border-color:var(--color-line);box-shadow:0 1px 3px #292e2710}.reading-modes button{flex:1}.reading-modes .icon{width:15px;height:15px}.mode-help{font-size:10px;display:flex;justify-content:space-between;gap:10px;color:var(--color-muted);margin:14px 3px 17px}.reading-paper{background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius);padding:30px 42px 24px;box-shadow:0 3px 18px #383f2b04}.paper-heading{display:flex;justify-content:space-between;font-size:10px;letter-spacing:2px;color:var(--color-muted);border-bottom:1px solid var(--color-line);padding-bottom:20px;margin-bottom:27px}.story-paragraph{font-family:var(--font-reading);font-size:var(--reading-size,22px);line-height:2.15;margin:0 0 30px;position:relative;text-align:justify;overflow-wrap:break-word;scroll-margin-top:50px}.paragraph-number{position:absolute;left:-27px;top:10px;color:var(--color-line);font:9px/2 var(--font-ui)}.vocab-word{display:inline;vertical-align:baseline;border:0;border-bottom:1px solid #baa772;background:linear-gradient(transparent 14%,var(--color-highlight) 14%,var(--color-highlight) 89%,transparent 89%);padding:1px 3px 3px;font:inherit;line-height:inherit;color:#655329;box-decoration-break:clone;-webkit-box-decoration-break:clone}.vocab-word>span{font-family:Georgia,serif;font-weight:700}.vocab-word>small{font:12px var(--font-ui);color:#6b6551}.vocab-word:hover{background:var(--color-highlight);border-color:var(--color-accent)}.excerpt-end{display:flex;align-items:center;justify-content:center;gap:14px;font-size:10px;color:var(--color-muted);margin:20px 0 36px}.excerpt-end span{height:1px;width:35px;background:var(--color-line)}.reading-end{display:flex;align-items:center;justify-content:space-between;gap:20px;border-top:1px solid var(--color-line);padding-top:22px}.reading-end strong{font-size:13px;font-weight:500}.reading-end p{font-size:11px;color:var(--color-muted);margin:7px 0 0}.reading-end .btn{font-size:12px;min-height:38px;padding:8px 15px}.source-note{display:flex;gap:9px;align-items:flex-start;color:var(--color-muted);margin:18px 10px;font-size:10px}.source-note>.icon{width:14px;height:14px;margin-top:3px}.source-note p{margin:0}.source-note .text-btn{font-size:10px;display:inline;margin-left:9px;text-decoration:underline;text-underline-offset:3px}
.exercise-panel{background:var(--color-highlight);border:1px solid var(--color-line);border-radius:9px;padding:16px 20px;display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px}.exercise-panel strong{font-size:13px;font-weight:500}.exercise-panel p{font-size:10px;margin:5px 0 0;color:var(--color-muted)}.exercise-actions{display:flex;flex-wrap:wrap;gap:7px}.exercise-actions .text-btn{font-size:11px;padding:4px}.cloze-wrap{display:inline-block;position:relative;margin:0 4px 15px 2px;line-height:1.7;vertical-align:middle;font-size:16px;max-width:100%}.cloze-hint{display:block;font:12px var(--font-ui);color:var(--color-accent);text-align:left;margin-top:5px}.cloze-input{display:block;border:0;border-bottom:2px solid var(--color-accent);background:var(--color-soft);border-radius:4px 4px 0 0;width:155px;max-width:100%;height:35px;font:19px Georgia,serif;color:var(--color-primary);padding:3px 6px}.cloze-input.correct{border-color:var(--color-good)}.cloze-input.incorrect{border-color:var(--color-danger)}.answer-feedback{display:block;position:absolute;top:100%;font:10px/1.4 var(--font-ui);color:var(--color-accent);white-space:nowrap}.answer-feedback.correct{color:var(--color-good)}.answer-feedback.incorrect{color:var(--color-danger)}
.section-heading{display:flex;align-items:end;justify-content:space-between;gap:24px;margin:28px 0 35px}.section-eyebrow{font-size:12px;color:var(--color-accent);margin-bottom:15px}.section-heading h1{font:500 32px/1.6 var(--font-reading);letter-spacing:1px;margin-bottom:12px}.section-heading>div>p:last-child{font-size:13px;color:var(--color-muted);margin-bottom:0}.shelf-count{font-size:12px;color:var(--color-muted)}.shelf-tools{display:flex;align-items:center;justify-content:space-between;margin:30px 0 20px}.shelf-tools .search-box{width:300px}.shelf-tools>span{font-size:12px;color:var(--color-muted)}.shelf-tools b{margin-left:8px;color:var(--color-accent);font-weight:400}.book-feature{display:grid;grid-template-columns:1.2fr 1fr;border:1px solid var(--color-line);border-radius:12px;overflow:hidden;background:var(--color-surface)}.book-art{display:block;min-height:300px;overflow:hidden}.book-art img{width:100%;height:100%;object-fit:cover;object-position:70% center}.book-art:hover img{filter:brightness(1.07)}.book-details{padding:38px}.tag{font-size:11px;color:var(--color-accent);padding:4px 8px;background:var(--color-highlight);border-radius:4px}.book-details h2{font:500 25px/1.6 var(--font-reading);margin:17px 0 10px}.book-details p{font-size:13px;line-height:1.9;color:var(--color-muted)}.book-stats{display:flex;gap:10px;color:var(--color-muted);font-size:11px;margin:20px 0}.reading-path{padding-top:42px;margin-top:10px}.reading-path h2{font:500 21px var(--font-reading);margin-bottom:25px}.reading-path>div{display:grid;grid-template-columns:repeat(3,1fr);gap:35px}.reading-path p{display:flex;gap:18px;color:var(--color-muted);font-size:12px;line-height:1.8}.reading-path b{font:italic 30px Georgia,serif;color:#b9aa82}.reading-path strong{display:block;font-size:14px;font-weight:500;color:var(--color-ink);margin-bottom:5px}.notebook-tools{display:flex;gap:20px;justify-content:space-between;align-items:center;margin-bottom:22px}.notebook-tools .search-box{width:320px}.notebook-row{display:flex;gap:24px;align-items:center;padding:25px;border:1px solid var(--color-line);background:var(--color-surface);border-radius:10px;margin-bottom:12px}.notebook-word{min-width:170px;display:flex;flex-direction:column;gap:8px}.notebook-word>span{font:12px Georgia,serif;color:var(--color-muted)}.notebook-meaning{flex:1;display:flex;flex-direction:column;gap:6px}.notebook-meaning b{font-size:14px;font-weight:500}.notebook-meaning span{font-size:11px;color:var(--color-muted)}.status-badge{font-size:11px;color:var(--color-accent);background:var(--color-highlight);padding:3px 10px;border-radius:20px;white-space:nowrap}.quiet-note{color:var(--color-muted);text-align:center;font-size:11px;margin:30px 0}.empty-state{padding:70px 25px;text-align:center;background:var(--color-surface);border:1px solid var(--color-line);border-radius:12px}.empty-state>.icon{width:38px;height:38px;color:var(--color-accent);margin-bottom:20px}.empty-state h2{font:500 22px var(--font-reading)}.empty-state p{color:var(--color-muted);font-size:13px;margin:15px 0 24px}.empty-inline{padding:24px 0;color:var(--color-muted);font-size:12px}
.review-card{max-width:760px;margin:0 auto;background:var(--color-surface);border:1px solid var(--color-line);border-radius:15px;padding:30px 44px;text-align:center}.review-top{display:flex;justify-content:space-between;font-size:11px;color:var(--color-muted);padding-bottom:28px}.review-pos{font:16px Georgia,serif;color:var(--color-muted)}.review-card h2{font:500 42px var(--font-reading);margin:10px 0 12px}.review-prompt{font-size:12px;color:var(--color-muted)}.review-card blockquote{text-align:left;font:17px/2 var(--font-reading);padding:20px 25px;background:var(--color-soft);border-left:2px solid var(--color-accent);margin:28px 0}.review-card mark{background:var(--color-highlight);color:var(--color-accent)}.review-answer{display:flex;justify-content:center;align-items:center;gap:16px;margin:25px 0}.review-answer strong{font:700 32px Georgia,serif;color:var(--color-primary)}.review-answer>span{font:12px Georgia,serif;color:var(--color-muted)}.reveal-btn{min-width:180px;margin:10px 0 20px}.review-rating>span{font-size:11px;color:var(--color-muted)}.review-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:24px;margin-top:22px;border-top:1px solid var(--color-line)}.review-bottom-note{text-align:center;font-size:12px;color:var(--color-muted);margin-top:25px}.review-bottom-note a{color:var(--color-accent);text-decoration:underline;text-underline-offset:4px}
dialog{border:1px solid var(--color-line);border-radius:16px;padding:0;max-width:min(590px,calc(100vw - 32px));width:590px;max-height:calc(100dvh - 40px);color:var(--color-ink);background:var(--color-surface);overflow:auto;box-shadow:0 24px 100px #172b2440;scrollbar-gutter:stable}dialog::backdrop{background:rgba(23,35,28,.48);backdrop-filter:blur(3px)}body:has(dialog[open]){overflow:hidden}.word-modal,.info-modal{padding:32px;position:relative}.modal-close{position:absolute;top:20px;right:20px;border-radius:50%;width:30px;height:30px}.modal-close .icon{width:16px;height:16px}.modal-eyebrow{font-size:10px;letter-spacing:1px;color:var(--color-accent);margin-bottom:16px}.word-modal h2{font:700 43px/1.2 Georgia,serif;margin:0 35px 14px 0;color:var(--color-ink);overflow-wrap:anywhere}.word-modal-pronunciation{display:flex;align-items:center;justify-content:space-between;gap:10px;font:13px Georgia,serif;color:var(--color-muted);margin-bottom:22px}.word-modal-pronunciation>div{display:flex;gap:5px}.word-modal-pronunciation .btn{font-family:var(--font-ui);font-size:10px;min-height:31px;padding:5px 9px}.word-modal-pronunciation .icon{width:12px;height:12px}.modal-meaning{font-size:20px;margin-bottom:18px}.modal-meaning small{font:15px Georgia,serif;color:var(--color-muted);margin-right:4px}.context-box{background:var(--color-soft);border-left:2px solid var(--color-accent);padding:16px 18px}.context-box>span{font-size:9px;letter-spacing:2px;color:var(--color-accent)}.context-box p{font:15px/2 var(--font-reading);margin:9px 0 0}.context-box .vocab-word small{font-size:10px}.word-tip{font-size:11px;color:var(--color-muted);margin:12px 0}.word-modal details{font-size:11px;color:var(--color-muted);margin:16px 0}.word-modal summary{cursor:pointer;min-height:24px}.word-modal details p{margin:12px 0}.word-modal details a{color:var(--color-accent);text-decoration:underline}.rating-buttons{display:flex;gap:7px;margin:16px 0 12px}.rating-buttons .btn{flex:1;font-size:12px}.word-pager{display:flex;align-items:center;gap:14px;margin-top:20px;padding-top:20px;border-top:1px solid var(--color-line)}.word-pager .btn{flex:1;font-size:12px;min-height:36px}.word-pager>span{font-size:10px;color:var(--color-muted)}.device-note{font-size:9px;color:var(--color-muted);text-align:center;margin:14px 0 0}.info-modal h2{font:500 24px/1.5 var(--font-reading);padding-right:25px;margin-bottom:23px}.info-modal>p:not(.modal-eyebrow){font-size:13px;line-height:1.9;color:var(--color-muted);margin-bottom:20px}.info-modal strong{color:var(--color-ink)}.contents-list{display:flex;flex-direction:column}.contents-list button{display:flex;align-items:center;gap:17px;text-align:left;padding:20px 0;border:0;border-bottom:1px solid var(--color-line);background:transparent;font-size:14px}.contents-list button:hover{color:var(--color-accent)}.contents-list button>span{font:12px Georgia,serif;color:var(--color-accent)}.contents-list .icon{margin-left:auto;width:16px;height:16px}.settings-actions{display:flex;gap:10px;flex-wrap:wrap}.file-label{cursor:pointer;position:relative;overflow:hidden}.file-label input{position:absolute;inset:0;width:100%;opacity:0;cursor:pointer}.file-label:focus-within{outline:3px solid var(--color-accent);outline-offset:4px}.settings-summary{display:flex;justify-content:space-between;padding:18px 0;border-top:1px solid var(--color-line);border-bottom:1px solid var(--color-line);font-size:12px;margin:20px 0;color:var(--color-muted)}.settings-summary b{color:var(--color-primary);margin-left:4px}.inline-error{color:var(--color-danger)!important;min-height:20px;margin:8px 0!important}.mobile-word-list .word-row{padding:17px 0}.mobile-word-list h2 small{font-size:12px;color:var(--color-muted);margin-left:12px}.toast{position:fixed;bottom:25px;left:50%;transform:translate(-50%,15px);background:var(--color-primary);color:var(--color-white);box-shadow:0 5px 20px #192f2520;border-radius:9px;padding:12px 20px;max-width:calc(100vw - 32px);font-size:12px;opacity:0;visibility:hidden;transition:opacity .15s,transform .15s;z-index:99;pointer-events:none}.toast.visible{opacity:1;visibility:visible;transform:translate(-50%,0)}.storage-notice{padding:10px 20px;background:var(--color-highlight);color:var(--color-accent);font-size:12px;text-align:center}.site-footer{max-width:var(--page-max);margin:auto;border-top:1px solid var(--color-line);padding:24px 0 30px;display:flex;gap:24px;align-items:center;font-size:10px;color:var(--color-muted)}.site-footer>span:last-child{margin-left:auto}.footer-dot{margin:0 8px}.site-footer .text-btn{font-size:10px}
@media(min-width:1450px){.page{padding-top:32px}.story-hero{min-height:265px}.hero-content{padding:35px 45px}.story-hero h1{font-size:37px}}
@media(max-width:1260px){.header-inner,.page,.site-footer{margin-left:30px;margin-right:30px}.header-inner{gap:24px}.header-inner nav{gap:28px}}
@media(max-width:1000px){.brand small{display:none}.reader-grid{grid-template-columns:200px minmax(0,1fr);gap:22px}.reading-paper{padding:25px 30px}.word-sidebar{padding-left:12px;padding-right:12px}.hero-content{max-width:76%}.story-hero h1{font-size:31px}.notebook-row{gap:16px}.notebook-word{min-width:140px}.notebook-meaning span{display:none}.exercise-panel{flex-direction:column;align-items:flex-start}.section-heading h1{font-size:27px}}
@media(max-width:800px){.header-inner,.page,.site-footer{margin-left:18px;margin-right:18px}.header-inner{min-height:74px;gap:15px;flex-wrap:wrap}.brand>span{font-size:24px;letter-spacing:2px}.brand>svg{width:25px;height:25px}.header-inner nav{gap:20px}.header-inner nav>a{font-size:12px}.settings-trigger{width:24px}.reader-grid{display:block}.word-sidebar{display:none}.mobile-vocab{display:inline-flex}.story-hero{min-height:235px}.hero-content{padding:25px;max-width:90%}.story-hero h1{font-size:30px}.hero-corner{display:none}.story-hero>img{object-position:65% center;opacity:.82}.story-hero:after{background:linear-gradient(90deg,rgba(19,43,35,.65),rgba(19,43,35,.1))}.reading-toolbar{align-items:flex-start;gap:10px}.tool-group{max-width:75%}.font-tools{gap:6px}.font-tools button{width:27px;min-width:27px;height:30px;font-size:11px}.font-tools span{font-size:9px}.tool-group .btn{font-size:10px;padding:6px 8px;min-height:32px}.tool-group .icon{width:13px;height:13px}.mode-help{font-size:10px}.reading-paper{padding:25px 30px}.section-heading{align-items:flex-start;flex-direction:column;margin-top:15px}.section-heading h1{font-size:27px}.book-feature{grid-template-columns:1fr}.book-art{min-height:0;height:260px}.book-art img{object-position:center 40%}.book-details{padding:26px}.reading-path>div{grid-template-columns:1fr;gap:4px}.reading-path p{margin-bottom:18px}.reading-path b{min-width:35px}.notebook-tools{flex-direction:column;align-items:stretch;gap:12px}.notebook-tools .search-box{width:100%}.notebook-tools .segmented button{flex:1}.notebook-row{flex-wrap:wrap;padding:19px;gap:14px}.notebook-meaning{min-width:50%}.notebook-word{min-width:145px}.notebook-row>.status-badge{margin-right:auto}.notebook-row>.btn{font-size:10px}.review-card{padding:25px}.review-card blockquote{font-size:16px;padding:15px 18px}.review-answer{flex-wrap:wrap}.review-answer strong{font-size:28px}.review-top{font-size:10px}.site-footer{flex-wrap:wrap;gap:12px}.site-footer>span:last-child{margin-left:0;width:100%}.source-note{margin-left:2px;margin-right:2px}.shelf-tools .search-box{width:240px}}
@media(max-width:480px){.header-inner{gap:10px;min-height:68px}.brand{gap:6px}.brand>span{font-size:22px}.brand>svg{width:22px}.header-inner nav{gap:15px}.header-inner nav>a{font-size:11px}.header-inner nav span{display:none}.settings-trigger{width:17px}.page{padding-top:20px}.page-top{margin-bottom:17px;font-size:10px}.page-top-actions{gap:14px}.story-hero{min-height:220px}.story-hero h1{font-size:27px;letter-spacing:1px}.hero-content{padding:25px 20px;max-width:100%}.hero-meta{font-size:9px;letter-spacing:.5px}.hero-content p{font-size:9px;gap:7px}.save-hint{font-size:8px}.reading-progress{gap:8px}.reading-progress>span:first-child{width:49px;font-size:9px}.reading-toolbar{flex-wrap:wrap;position:relative;padding-bottom:15px;margin-bottom:20px}.tool-group{max-width:100%;width:100%;gap:5px;padding-right:0}.font-tools{margin-left:auto}.reading-modes button{padding:9px 7px;font-size:11px;gap:5px}.reading-modes .icon{width:13px;height:13px}.mode-help{font-size:9px;line-height:1.8}.mode-help>span{display:none}.reading-paper{padding:22px 22px 20px}.story-paragraph{font-size:calc(var(--reading-size) * .9);line-height:2.1;text-align:left;margin-bottom:25px}.paragraph-number{left:-15px;font-size:8px}.vocab-word>small{font-size:10px}.paper-heading{font-size:9px;margin-bottom:23px}.reading-end{flex-direction:column;align-items:flex-start;gap:15px}.reading-end strong{font-size:12px}.reading-end p{font-size:10px}.excerpt-end{font-size:9px;gap:9px}.excerpt-end span{width:20px}.word-modal,.info-modal{padding:26px 23px}.word-modal h2{font-size:35px}.word-modal-pronunciation{font-size:11px}.word-modal-pronunciation>div{gap:4px}.word-modal-pronunciation .btn{padding:5px 6px;font-size:9px}.context-box{padding:13px 15px}.context-box p{font-size:14px}.rating-buttons .btn{padding:8px;font-size:11px}.word-pager{gap:9px}.info-modal h2{font-size:21px}.review-card{padding:20px}.review-top{gap:15px}.review-top>span:first-child{max-width:75%;text-align:left}.review-card h2{font-size:34px}.review-card blockquote{font-size:15px;padding:15px}.review-card .rating-buttons{flex-wrap:wrap}.section-heading h1{font-size:24px}.section-heading>div>p:last-child{font-size:11px}.shelf-count{font-size:10px}.shelf-tools .search-box{width:220px}.book-art{height:210px}.book-details{padding:23px}.book-details h2{font-size:22px}.book-stats{font-size:10px}.notebook-word{min-width:125px}.notebook-word .word-name{font-size:20px}.notebook-meaning{min-width:0}.review-bottom-note{font-size:10px}.exercise-panel{padding:14px}.exercise-actions .btn{font-size:10px}.cloze-input{width:135px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}
@media(forced-colors:active){*{scrollbar-color:auto}.vocab-word{border:1px solid ButtonText}.btn.primary{border:1px solid ButtonText}.segmented button[aria-pressed=true]{outline:2px solid Highlight}}
@media print{.site-header,.page-top-actions,.reading-toolbar,.word-sidebar,.reading-modes,.mode-help,.site-footer,.toast,.reading-progress,.source-note,.reading-end{display:none!important}.page{margin:0;padding:0;max-width:none}.story-hero{min-height:120px}.story-hero img{display:none}.story-hero:after{display:none}.hero-content{padding:10px;color:#000}.hero-content p,.hero-meta{color:#333}.story-hero h1{font-size:24px}.reader-grid{display:block}.reading-paper{border:0;padding:20px;box-shadow:none}.story-paragraph{font-size:16px}.vocab-word{background:none;border-bottom:1px solid #777;color:#000}}
.audio-status{font-size:11px;color:var(--color-muted);margin:-12px 0 20px;min-height:18px;line-height:1.6}

/* Membership: scoped lavender and brass, without changing reading tokens. */
:root{--member-bg:#f5f0fa;--member-surface:#fcf9ff;--member-ink:#2e2043;--member-muted:#79648c;--member-purple:#8050a4;--member-deep:#634080;--member-line:#d9c5e9;--member-soft:#eee3f4;--member-gold:#ead09a;--member-error:#a13046}
:root{--course-gaokao-accent:#9a3f68;--course-gaokao-soft:#f9eaf1;--course-ielts-accent:#82591f;--course-ielts-soft:#f8efd9;--course-kaoyan-accent:#2b6478;--course-kaoyan-soft:#e6f0f5;--course-cet-accent:#315f50;--course-cet-soft:#e8f1ea}
body:has(.membership-page){background:var(--member-bg)}
body:has(.membership-page) .site-header{background:var(--member-surface);border-color:var(--member-line)}
body:has(.membership-page) .header-inner nav>a[aria-current]{color:var(--member-purple)}
body:has(.membership-page) .header-inner nav>a[aria-current]:after{background:var(--member-purple)}
.membership-page{color:var(--member-ink);padding-top:5px}.member-breadcrumb{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--member-muted);margin:0 0 24px}.member-breadcrumb a:hover{color:var(--member-purple)}
.member-layout{display:grid;grid-template-columns:minmax(220px,.9fr) minmax(0,2.25fr);border:1px solid var(--member-line);border-radius:28px;overflow:hidden;background:var(--member-surface);box-shadow:0 16px 48px #4430550b}
.member-art{position:relative;isolation:isolate;min-height:700px;background:var(--member-deep);color:var(--color-white);display:flex;flex-direction:column;justify-content:space-between;padding:36px 29px;overflow:hidden}.member-art>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 45%;z-index:-2}.member-art:after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,#22142f78 0%,#23193405 44%,#231932e8 100%);z-index:-1}.member-art-top{display:flex;justify-content:space-between;gap:12px;align-items:center}.member-monogram{font:500 27px var(--font-reading);letter-spacing:6px}.member-art-top>span:last-child{font:8px/1.9 Georgia,serif;letter-spacing:1.2px;color:var(--member-gold)}.member-art-rule{display:block;width:35px;height:1px;background:var(--member-gold);margin-bottom:20px}.member-art-copy p{font:500 30px/1.7 var(--font-reading);letter-spacing:1px;margin:0 0 16px}.member-art-copy small{font-size:11px;color:var(--member-gold);line-height:1.8}
.member-panel{padding:38px 38px 30px;min-width:0}.member-eyebrow{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;font-weight:600;color:var(--member-purple);letter-spacing:.5px}.member-preview-badge{font-size:10px;font-weight:400;border:1px solid var(--member-line);border-radius:20px;padding:3px 10px;white-space:nowrap}.member-panel h1{font:500 38px/1.4 var(--font-reading);letter-spacing:2px;margin:10px 0 10px}.member-intro{font-size:14px;line-height:1.9;color:var(--member-muted);margin-bottom:22px}
.member-modes{padding:5px;border:1px solid var(--member-line);background:var(--member-soft);border-radius:16px;gap:5px}.member-modes button{flex:1;min-height:44px;font-size:16px;font-weight:600;color:var(--member-muted);border-radius:11px}.member-modes button[aria-pressed=true]{background:var(--member-surface);color:var(--member-purple);border-color:transparent;box-shadow:none}.member-modes button:hover{color:var(--member-purple)}.member-availability{font-size:11px;line-height:1.8;color:var(--member-muted);margin:14px 0 22px}
.member-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:20px;row-gap:3px}.member-field{min-width:0}.member-field label{display:block;font-size:15px;font-weight:600;margin:0 0 10px}.member-field :is(input,select){width:100%;min-width:0;min-height:56px;border:1px solid var(--member-line);border-radius:14px;background:var(--member-surface);color:var(--member-ink);padding:14px;font:14px/1.4 var(--font-ui);outline-offset:3px}.member-field input::placeholder{color:var(--member-muted);opacity:.75;font-size:13px}.member-field :is(input,select):focus-visible{outline:2px solid var(--member-purple);border-color:var(--member-purple)}.member-field input[aria-invalid=true]{border-color:var(--member-error)}.member-field input[aria-invalid=true]:focus-visible{outline-color:var(--member-error)}.member-field-error{min-height:22px;font-size:11px;line-height:1.65;color:var(--member-error);margin:5px 0 8px}.member-password-wrap{position:relative}.member-password-wrap input{padding-right:90px}.member-reveal{position:absolute;right:9px;top:8px;bottom:8px;border:0;border-radius:8px;background:transparent;color:var(--member-deep);font-size:11px;padding:0 8px}.member-reveal:hover{background:var(--member-soft)}
.member-submit.btn{width:100%;min-height:68px;display:flex;justify-content:space-between;padding:12px 16px 12px 22px;border-radius:16px;border:1px solid var(--member-deep);background:linear-gradient(115deg,var(--member-purple),var(--member-deep));color:var(--color-white);font-size:20px;font-weight:600;margin-top:4px;box-shadow:0 8px 20px #65408015}.member-submit.btn:hover{filter:brightness(1.06);border-color:var(--member-deep)}.member-submit-arrow{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;color:var(--member-deep);background:var(--member-gold);font-size:24px;font-weight:400;flex:none}
.member-form-bottom{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;font-size:11px;color:var(--member-muted);margin-top:13px}.member-example.text-btn{font-size:11px;white-space:nowrap;color:var(--member-purple);text-decoration:underline;text-underline-offset:3px}.member-result{margin-top:16px;border:1px solid var(--member-line);border-left:3px solid var(--member-purple);background:var(--member-soft);padding:13px 15px;border-radius:8px;font-size:12px;line-height:1.8;overflow-wrap:anywhere}.member-result:focus{outline:2px solid var(--member-purple);outline-offset:3px}.member-guide{border-top:1px solid var(--member-line);padding-top:19px;margin-top:25px}.member-guide summary{cursor:pointer;font-size:13px;font-weight:600;color:var(--member-purple);list-style:none;display:flex;justify-content:space-between;gap:12px;min-height:28px}.member-guide summary:after{content:'+';font:20px Georgia,serif}.member-guide[open] summary:after{content:'−'}.member-guide summary::-webkit-details-marker{display:none}.member-guide-content{font-size:12px;color:var(--member-muted);line-height:1.9;padding-top:14px}.member-guide-content p{margin-bottom:9px}.member-guide-content a{color:var(--member-purple);font-weight:600;margin-top:5px}
.membership-page button:focus-visible,.membership-page a:focus-visible,.membership-page summary:focus-visible{outline-color:var(--member-purple)}
/* Public membership guide: native dialog geometry, shared membership/course tokens. */
body:has(.member-guide-dialog[open]){overflow:hidden}
.member-guide-trigger{display:inline-flex;align-items:center;min-height:44px;max-width:100%;margin:-8px 0 18px;padding:4px 0;border:0;border-radius:4px;background:transparent;color:var(--member-deep);font-size:16px;font-weight:600;line-height:1.7;text-align:left;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:5px;white-space:normal;overflow-wrap:anywhere}.member-guide-trigger:hover:not(:disabled){color:var(--member-purple);text-decoration-thickness:2px}.member-guide-selection{margin:0 0 20px;padding:12px 15px;border:1px solid var(--member-line);border-radius:10px;background:var(--member-soft);color:var(--member-deep);font-size:14px;line-height:1.8;overflow-wrap:anywhere}
.member-guide-dialog{width:640px;max-width:calc(100vw - 40px);max-height:calc(100vh - 40px);max-height:calc(100dvh - 40px);margin:auto;border:1px solid var(--member-line);border-radius:24px;background:var(--member-surface);color:var(--member-ink);box-shadow:0 24px 80px color-mix(in srgb,var(--member-ink) 28%,transparent);overflow:auto;overscroll-behavior:contain;scroll-padding-block:24px;scrollbar-gutter:stable}.member-guide-dialog::backdrop{background:color-mix(in srgb,var(--member-ink) 48%,transparent);backdrop-filter:blur(3px)}.member-guide-modal{position:relative;padding:38px 32px 28px}.member-guide-close{position:absolute;top:8px;right:8px;display:grid;place-items:center;width:44px;height:44px;padding:0;border:0;border-radius:50%;background:transparent;color:var(--member-muted);font-size:28px;font-weight:400;line-height:1}.member-guide-close:hover:not(:disabled){background:var(--member-soft);color:var(--member-deep)}.member-guide-modal h2{margin:0 24px 12px 0;color:var(--member-ink);font:700 26px/1.5 var(--font-ui);text-align:left;overflow-wrap:anywhere}.member-guide-description{margin:0 0 24px;max-width:40em;color:var(--member-muted);font-size:14px;line-height:1.8;text-align:left;overflow-wrap:anywhere}
.member-guide-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.member-guide-card{--guide-card-accent:var(--member-deep);--guide-card-soft:var(--member-soft);display:flex;align-items:center;justify-content:space-between;gap:14px;min-width:0;min-height:112px;padding:20px;border:1px solid color-mix(in srgb,var(--guide-card-accent) 22%,transparent);border-radius:16px;background:var(--guide-card-soft);color:var(--guide-card-accent);text-align:left;white-space:normal;overflow-wrap:anywhere}.member-guide-card>span:first-child{flex:1;min-width:0}.member-guide-card strong{display:block;font-size:20px;font-weight:700;line-height:1.45}.member-guide-card small{display:block;margin-top:6px;font-size:13px;line-height:1.7}.member-guide-arrow{display:grid;place-items:center;flex:none;width:30px;height:30px;font-size:26px;line-height:1}.member-guide-card:hover:not(:disabled){border-color:var(--guide-card-accent);background:color-mix(in srgb,var(--guide-card-soft) 80%,var(--color-white))}.member-guide-card-fullsite{grid-column:1/-1;min-height:100px;border-color:var(--member-purple);background:var(--member-soft);color:var(--member-deep)}.member-guide-card-fullsite strong{font-size:24px}.member-guide-card-fullsite .member-guide-arrow{color:var(--member-deep)}.member-guide-card-fullsite:hover:not(:disabled){border-color:var(--member-deep);background:color-mix(in srgb,var(--member-soft) 80%,var(--color-white))}.member-guide-card-gaokao{--guide-card-accent:var(--course-gaokao-accent);--guide-card-soft:var(--course-gaokao-soft)}.member-guide-card-ielts{--guide-card-accent:var(--course-ielts-accent);--guide-card-soft:var(--course-ielts-soft)}.member-guide-card-kaoyan{--guide-card-accent:var(--course-kaoyan-accent);--guide-card-soft:var(--course-kaoyan-soft)}.member-guide-card-cet{--guide-card-accent:color-mix(in srgb,var(--course-ielts-accent) 80%,var(--course-gaokao-accent));--guide-card-soft:color-mix(in srgb,var(--course-ielts-soft) 65%,var(--course-gaokao-soft))}
.member-guide-note{margin:20px 0;color:var(--member-muted);font-size:13px;line-height:1.9;overflow-wrap:anywhere}.member-guide-ack.btn{width:100%;min-height:52px;padding:12px 20px;border:1px solid var(--member-purple);border-radius:12px;background:var(--member-purple);color:var(--color-white);font-size:16px;font-weight:600;white-space:normal}.member-guide-ack.btn:hover:not(:disabled){border-color:var(--member-deep);background:var(--member-deep)}.member-guide-dialog button:focus-visible{outline:3px solid var(--member-purple);outline-offset:4px}
@media(max-width:480px){.member-guide-trigger{font-size:14px;margin-bottom:16px}.member-guide-selection{font-size:13px}.member-guide-dialog{max-width:calc(100vw - 24px);max-height:calc(100vh - 24px);max-height:calc(100dvh - 24px);border-radius:20px}.member-guide-modal{padding:48px 18px 20px}.member-guide-modal h2{margin:0 0 12px;font-size:23px}.member-guide-description{margin-bottom:20px;font-size:13px}.member-guide-cards{gap:10px}.member-guide-card{min-height:104px;padding:16px 12px;gap:8px;border-radius:12px}.member-guide-card strong{font-size:18px}.member-guide-card small{font-size:12px}.member-guide-card-fullsite{padding:18px 16px;min-height:96px}.member-guide-card-fullsite strong{font-size:21px}.member-guide-arrow{width:22px;font-size:22px}.member-guide-note{margin:18px 0;font-size:12px}.member-guide-ack.btn{min-height:48px;font-size:15px}}
@media(max-width:360px){.member-guide-cards{grid-template-columns:minmax(0,1fr)}.member-guide-card{min-height:88px;padding:16px}.member-guide-modal h2{font-size:21px}.member-guide-card-fullsite strong{font-size:20px}}
@media(forced-colors:active){.member-guide-dialog,.member-guide-card,.member-guide-ack.btn{border:1px solid ButtonText}.member-guide-close{border:1px solid ButtonText}.member-guide-dialog button:focus-visible{outline-color:Highlight}.member-guide-card:hover:not(:disabled),.member-guide-ack.btn:hover:not(:disabled){outline:1px solid Highlight}}
.member-zones{margin-top:36px}.member-zones-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}.member-zones-heading h2{font:500 23px/1.5 var(--font-reading);margin:0}.member-zones-heading>span{font-size:11px;color:var(--member-muted)}.member-zone-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px}.member-zone{padding:22px;border:1px solid var(--member-line);border-radius:14px;background:var(--member-surface);min-width:0}.zone-en{font:9px Georgia,serif;letter-spacing:1.6px;color:var(--member-muted)}.member-zone h3{font:600 20px var(--font-reading);margin:12px 0}.member-zone h3>span{float:right;font-size:18px}.member-zone p{font-size:11px;color:var(--member-muted);line-height:1.8;margin-bottom:17px}.zone-status{font-size:10px;display:inline-block;border-radius:4px;padding:3px 8px;background:var(--member-soft);color:var(--member-muted)}.member-zone-ready{border-color:var(--member-purple)}.member-zone-ready .zone-status{background:var(--member-deep);color:var(--color-white)}.member-zone-ready:hover{background:var(--member-soft)}
@media(max-width:1000px){.member-layout{grid-template-columns:220px minmax(0,1fr)}.member-art{padding:30px 22px}.member-art-copy p{font-size:25px}.member-art-top{align-items:flex-start;flex-direction:column;gap:15px}.member-panel{padding:30px 26px}.member-panel h1{font-size:34px}.member-fields{column-gap:14px}.member-field label{font-size:13px}.member-field input{font-size:13px;padding:14px 11px}.member-password-wrap input{padding-right:76px}.member-reveal{padding:0 4px;font-size:10px}.member-zone{padding:17px}}
@media(max-width:760px){.member-layout{grid-template-columns:1fr}.member-art{min-height:200px;padding:24px 28px;display:block}.member-art>img{object-position:center 48%}.member-art:after{background:linear-gradient(90deg,#231932d9,#23193240)}.member-art-top{flex-direction:row}.member-art-copy{margin-top:27px}.member-art-copy p{font-size:23px;line-height:1.5;margin:0}.member-art-copy p br{display:none}.member-art-copy small,.member-art-rule{display:none}.member-panel{padding:28px}.member-zone-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.member-zone h3{font-size:18px}.member-art{min-height:180px}}
@media(max-width:480px){.header-inner nav{gap:12px}.header-inner{gap:8px}.member-breadcrumb{font-size:10px;margin-bottom:18px}.member-layout{border-radius:20px}.member-panel{padding:25px 20px}.member-eyebrow{font-size:11px;letter-spacing:0}.member-preview-badge{font-size:9px;padding:2px 7px}.member-panel h1{font-size:32px;margin:12px 0 9px}.member-intro{font-size:12px;margin-bottom:20px}.member-modes button{font-size:14px;min-height:42px}.member-availability{font-size:10px;margin-bottom:20px}.member-fields{grid-template-columns:1fr}.member-field label{font-size:13px;margin-bottom:8px}.member-field input{min-height:52px;font-size:14px;padding:13px}.member-password-wrap input{padding-right:86px}.member-reveal{font-size:11px;right:9px;padding:0 6px}.member-field-error{min-height:17px;margin:4px 0 7px}.member-submit.btn{font-size:18px;min-height:64px;padding-left:18px}.member-submit-arrow{width:37px;height:37px;font-size:22px}.member-form-bottom{flex-wrap:wrap;font-size:10px;gap:8px}.member-guide summary{font-size:12px}.member-zones-heading{align-items:flex-start;flex-direction:column;gap:5px}.member-zones-heading h2{font-size:21px}.member-zone-grid{gap:10px}.member-zone{padding:17px 14px}.member-zone p{min-height:40px}.member-art-top>span:last-child{font-size:7px}.member-art{padding:23px}.member-art-copy p{font-size:21px}.member-monogram{font-size:24px}}
@media(forced-colors:active){.member-submit.btn,.member-zone-ready,.member-modes button[aria-pressed=true]{border:2px solid ButtonText}.member-field input[aria-invalid=true]{outline:2px dashed Mark}}
.membership-page button:disabled,.membership-page input:disabled{cursor:wait;opacity:.65}.member-account-card{padding:24px;border:1px solid var(--member-line);border-radius:16px;background:var(--member-soft)}.member-account-label{display:block;font-size:11px;color:var(--member-muted);margin-bottom:8px}.member-account-card h2{font:600 26px/1.5 var(--font-ui);margin:0 0 10px;overflow-wrap:anywhere}.member-account-card p{font-size:12px;line-height:1.9;color:var(--member-muted)}.member-account-card .member-account-status{font-weight:600;color:var(--member-deep)}.member-account-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.member-account-actions .primary{background:var(--member-deep);border-color:var(--member-deep);color:var(--color-white)}.member-admin-link{display:inline-flex;margin-top:20px;color:var(--member-purple)}.member-admin-shell{border:1px solid var(--member-line);border-radius:24px;background:var(--member-surface)}.member-admin-create{align-items:start;gap:20px}.member-admin-create .member-submit{margin-top:30px;min-height:56px;font-size:17px}.member-admin-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:32px}.member-admin-heading h2,.member-generated h2{font:500 23px/1.5 var(--font-reading);margin:0}.member-admin-heading .btn{white-space:nowrap}.member-admin-page #member-admin-list-status{font-size:12px;line-height:1.8;color:var(--member-muted);margin:14px 0}.member-generated{border:1px solid var(--member-line);border-radius:14px;background:var(--member-soft);padding:24px;margin-top:24px}.member-generated p{font-size:12px;line-height:1.8;color:var(--member-muted)}.member-generated dl{margin:18px 0}.member-generated dt{font-size:11px;color:var(--member-muted);margin-top:14px}.member-generated dd{margin:5px 0 0;overflow-wrap:anywhere;font-size:15px;color:var(--member-ink)}.member-generated code{font:600 17px/1.8 ui-monospace,monospace;user-select:all}.member-code-list{display:grid;gap:12px}.member-code-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr) auto;align-items:center;gap:20px;padding:20px;border:1px solid var(--member-line);border-radius:12px;background:var(--member-surface)}.member-code-row strong{display:block;font-size:15px;line-height:1.7;overflow-wrap:anywhere}.member-code-status{display:inline-block;font-size:11px;font-weight:600;padding:3px 9px;border-radius:5px;background:var(--member-soft);color:var(--member-deep)}.member-code-meta{display:block;font-size:11px;line-height:1.9;color:var(--member-muted);margin-top:5px;overflow-wrap:anywhere}.member-code-empty{padding:25px;border:1px dashed var(--member-line);border-radius:12px;font-size:13px;line-height:1.8;color:var(--member-muted)}
.member-admin-pagination{display:flex;align-items:center;justify-content:center;gap:16px;margin:24px 0;color:var(--member-muted);font-size:12px}.member-admin-pagination .btn{white-space:nowrap}.member-admin-pagination span{text-align:center}
@media(max-width:760px){.member-code-row{grid-template-columns:minmax(0,1fr) auto;gap:12px}.member-code-row>div:nth-child(2){grid-column:1;grid-row:2}.member-code-row>.btn{grid-column:2;grid-row:1/3}.member-admin-create{grid-template-columns:1fr;gap:0}.member-admin-create .member-submit{margin-top:0}.member-admin-shell{padding:26px}.member-generated{padding:20px}.member-admin-heading h2{font-size:21px}}
@media(max-width:480px){.member-account-card{padding:19px}.member-admin-shell{padding:25px 20px;border-radius:20px}.member-admin-heading{gap:10px}.member-code-row{padding:16px;gap:10px}.member-generated{padding:17px}.member-generated code{font-size:14px}.member-code-row strong{font-size:14px}.member-account-actions .btn{flex:1;text-align:center;justify-content:center}}
/* Multi-story bookshelf: shared paper, ink and brass tokens. */
.shelf-hero h1,.shelf-book h2,.reader-title h1{text-wrap:balance}
.shelf-hero .cover-large{padding-bottom:64px}
:root{--cover-river:#244b51;--cover-system:#434761;--cover-market:#623f36;--cover-palace:#654b2b;--cover-history:#343c37;--cover-sea:#244958;--cover-lamp:#47523b;--cover-paper:#ede5c8}
.shelf-hero{display:grid;grid-template-columns:1fr 285px;min-height:340px;background:var(--color-primary);border-radius:var(--radius);overflow:hidden;color:var(--color-on-dark);position:relative}
.shelf-hero-copy{padding:40px 48px;max-width:790px}.hero-kicker{font-size:11px;letter-spacing:2px;opacity:.75}.shelf-hero h1{font:600 clamp(26px,3vw,40px)/1.5 var(--font-reading);max-width:650px;letter-spacing:1px;margin:15px 0}.shelf-hero-copy>p:not(.hero-kicker){max-width:600px;font-size:13px;opacity:.8}.shelf-hero .primary{background:var(--cover-paper);color:var(--color-primary);border-color:var(--cover-paper)}.feature-controls{display:flex;align-items:center;gap:10px;position:absolute;right:22px;bottom:14px;z-index:2;font-size:11px}.feature-controls .icon-btn{color:var(--cover-paper);background:var(--color-primary);border:1px solid var(--cover-paper);width:30px;height:30px}.feature-controls>span{color:var(--cover-paper);background:var(--color-primary);padding:2px 7px;border-radius:4px}
.cover-art{--cover:var(--cover-lamp);position:relative;isolation:isolate;min-width:0;min-height:100%;aspect-ratio:2/3;background:var(--cover);color:var(--cover-paper);padding:16px 12px;display:flex;flex-direction:column;align-items:center;justify-content:space-between;text-align:center;overflow:hidden;border-radius:8px;box-shadow:inset 4px 0 0 #ffffff18,inset 8px 0 0 #00000015}
.cover-art:before{content:'';position:absolute;inset:9px;border:1px solid currentColor;opacity:.28;z-index:-1}.cover-art:after{content:'';position:absolute;width:135%;aspect-ratio:1;border:1px solid currentColor;transform:rotate(36deg);top:12%;left:-20%;opacity:.1;z-index:-1}.cover-1{--cover:var(--cover-river)}.cover-2{--cover:var(--cover-system)}.cover-3{--cover:var(--cover-market)}.cover-4{--cover:var(--cover-palace)}.cover-5{--cover:var(--cover-history)}.cover-6{--cover:var(--cover-sea)}.cover-7{--cover:var(--color-primary)}.cover-edition{font-size:7px;letter-spacing:1.5px}.cover-symbol{font:500 clamp(45px,6vw,80px)/1.2 var(--font-reading);margin:10px 0}.cover-title{font:600 14px var(--font-reading);letter-spacing:3px}.cover-rule{width:26px;border-top:1px solid currentColor;opacity:.65;margin:8px}.cover-art small{font-size:7px;letter-spacing:.5px}.cover-large{border-radius:0;aspect-ratio:auto;padding:35px;box-shadow:none;min-height:340px}.cover-large .cover-symbol{font-size:120px}.cover-large .cover-title{font-size:20px;letter-spacing:7px}.cover-large .cover-edition{font-size:9px}.cover-large small{font-size:9px}
.shelf-stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:22px 0}.shelf-stat-grid>div{background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius);padding:20px;text-align:center}.shelf-stat-grid strong{display:block;font:500 31px/1.2 Georgia,serif;color:var(--color-accent)}.shelf-stat-grid span{font-size:11px;color:var(--color-muted);display:block;margin-top:7px}
.lexicon-banner{display:flex;gap:22px;align-items:center;background:var(--color-accent);color:var(--color-surface);padding:24px 28px;border-radius:var(--radius)}.lexicon-badge{border:1px solid currentColor;border-radius:10px;padding:12px 15px;font:600 22px Georgia,serif;letter-spacing:1px}.lexicon-banner strong{display:block;font:600 22px var(--font-reading);margin-bottom:6px}.lexicon-banner small{font-size:12px;opacity:.9}.lexicon-banner>.icon{margin-left:auto;width:28px;height:28px}.corpus-note{color:var(--color-muted);font-size:11px;line-height:1.8;margin:12px 2px 30px}.shelf-tools{gap:18px;flex-wrap:wrap;margin:22px 0}.shelf-tools h2{font:600 23px var(--font-reading);margin:0 auto 0 0}.shelf-tools h2 small{font:12px var(--font-ui);color:var(--color-muted);margin-left:8px}.shelf-tools .search-box{width:260px}.filter-label{display:flex;align-items:center;gap:8px;font-size:12px;white-space:nowrap}.filter-label select{font:inherit;color:var(--color-ink);background:var(--color-surface);border:1px solid var(--color-line);padding:10px 30px 10px 12px;border-radius:var(--radius-control);max-width:190px;min-height:42px}.filter-label select:focus-visible{outline:3px solid var(--color-accent);outline-offset:3px}
.books-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.shelf-book{display:grid;grid-template-columns:130px minmax(0,1fr);gap:22px;padding:20px;background:var(--color-surface);border:1px solid var(--color-line);border-radius:var(--radius)}.cover-link{display:block;align-self:start}.shelf-book-copy{display:flex;flex-direction:column;align-items:flex-start;min-width:0}.book-topline{display:flex;justify-content:space-between;gap:8px;width:100%;font-size:10px;color:var(--color-muted)}.shelf-book h2{font:600 19px/1.65 var(--font-reading);margin:10px 0}.shelf-book-copy>p{font-size:12px;color:var(--color-muted);line-height:1.9;margin-bottom:14px}.shelf-book .book-stats{font-size:11px;gap:8px;margin-top:auto}.book-read{margin-top:13px;color:var(--color-primary);font-size:12px}.books-grid>.empty-state{grid-column:1/-1}.reference-callout{display:flex;justify-content:space-between;align-items:center;gap:20px;border-top:1px solid var(--color-line);margin-top:36px;padding:25px 0;color:var(--color-muted);font-size:12px}.reference-callout strong{font-size:15px;color:var(--color-ink)}
.reader-title{display:flex;align-items:center;gap:30px;border-bottom:1px solid var(--color-line);padding-bottom:28px}.reader-title>div:first-child{flex:1}.reader-title h1{font:600 34px/1.6 var(--font-reading);margin:12px 0}.reader-title p{color:var(--color-muted)}.reader-title .cover-art{width:100px;min-height:150px;flex:none}.reader-title .cover-symbol{font-size:50px}.reader-title .cover-title{font-size:10px}.reader-title .cover-art small{display:none}.translation{margin:-15px 0 35px;border-left:2px solid var(--color-line);padding:10px 16px;font-size:13px;color:var(--color-muted)}.translation summary{cursor:pointer}.translation p{margin:12px 0 0;font-size:15px;line-height:2;color:var(--color-ink)}.reader-grid .source-note{font-size:12px;display:block}.reading-column .story-paragraph{text-align:left}.vocab-word{max-width:100%;overflow-wrap:anywhere}.vocab-word>small{white-space:normal}.story-paragraph .vocab-word{font-size:inherit}
.vocab-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:24px}.lexicon-row{border:1px solid var(--color-line);border-radius:var(--radius-control);padding:19px;background:var(--color-surface);min-width:0}.lexicon-row>div{display:flex;justify-content:space-between;gap:10px;align-items:center}.lexicon-row strong{font:600 22px Georgia,serif;overflow-wrap:anywhere}.lexicon-row p{font-size:12px;line-height:1.8;margin:12px 0}.lexicon-row small{font-size:11px;color:var(--color-muted)}.lexicon-row .text-btn{display:block;font-size:11px;margin-top:12px}.pagination{display:flex;justify-content:center;align-items:center;gap:22px;margin:30px 0;color:var(--color-muted);font-size:12px}.catalog-notice{background:var(--color-soft);border:1px solid var(--color-line);border-radius:var(--radius);padding:22px;margin-bottom:24px;font-size:13px}.catalog-notice p{margin:9px 0;line-height:1.9}.catalog-list{margin-top:24px}.catalog-list article{display:flex;align-items:center;gap:24px;padding:22px 4px;border-bottom:1px solid var(--color-line)}.catalog-number{font:20px Georgia,serif;color:var(--color-accent);min-width:35px}.catalog-list article>div{flex:1}.catalog-list h2{font:600 19px/1.6 var(--font-reading);margin:8px 0}.catalog-list small{font-size:11px;color:var(--color-muted)}.catalog-list article>.text-btn{white-space:nowrap;font-size:12px}.word-modal .context-box{max-height:40vh;overflow-y:auto}.word-modal .word-modal-pronunciation{flex-wrap:wrap;gap:12px}.notebook-list{margin-top:24px}.notebook-row .notebook-meaning span{white-space:normal}
@media(max-width:900px){.shelf-book{grid-template-columns:105px minmax(0,1fr);gap:16px;padding:16px}.shelf-book h2{font-size:17px}.book-topline{flex-wrap:wrap}.shelf-hero{grid-template-columns:1fr 230px}.shelf-hero-copy{padding:30px}.vocab-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:650px){.shelf-hero{grid-template-columns:1fr 130px;min-height:310px}.shelf-hero-copy{padding:24px 20px}.shelf-hero h1{font-size:24px}.shelf-hero-copy>p:not(.hero-kicker){font-size:11px}.hero-kicker{font-size:8px;letter-spacing:.8px}.cover-large{padding:30px 12px;min-height:310px}.cover-large .cover-symbol{font-size:75px}.cover-large .cover-title{font-size:15px;letter-spacing:3px}.cover-large .cover-edition{font-size:6px}.cover-large small{font-size:7px}.shelf-stat-grid{grid-template-columns:repeat(2,1fr);gap:10px}.shelf-stat-grid>div{padding:16px}.shelf-stat-grid strong{font-size:27px}.lexicon-banner{padding:18px;gap:14px}.lexicon-banner strong{font-size:20px}.lexicon-banner small{font-size:10px}.lexicon-badge{padding:10px;font-size:17px}.books-grid{grid-template-columns:1fr;gap:14px}.shelf-book{grid-template-columns:112px 1fr;padding:16px;gap:18px}.shelf-book h2{font-size:18px}.shelf-tools .search-box{width:100%;order:3}.shelf-tools h2{font-size:21px}.shelf-tools .filter-label{font-size:11px}.shelf-tools{gap:12px}.reference-callout{align-items:flex-start;flex-direction:column}.reader-title{gap:15px}.reader-title h1{font-size:24px}.reader-title .cover-art{width:75px;min-height:115px}.reader-title .cover-symbol{font-size:36px}.reader-title .cover-edition{font-size:5px}.reader-title .cover-title{font-size:8px}.reader-title p{font-size:11px}.vocab-grid{gap:10px}.lexicon-row{padding:14px}.lexicon-row>div{align-items:flex-start;flex-direction:column}.lexicon-row strong{font-size:20px}.catalog-list article{gap:12px}.catalog-list h2{font-size:17px}.catalog-number{min-width:24px;font-size:16px}.notebook-tools .filter-label{align-self:flex-start}.notebook-tools .search-box{width:100%}}
@media(max-width:390px){.shelf-hero{grid-template-columns:1fr 100px}.shelf-hero h1{font-size:22px}.cover-large .cover-symbol{font-size:62px}.cover-large .cover-title{font-size:12px}.cover-large small{display:none}.shelf-book{grid-template-columns:94px 1fr;gap:14px}.shelf-book h2{font-size:16px}.shelf-book-copy>p{font-size:11px}}

/* Full brand name remains legible without crowding the mobile navigation. */
.brand>span{letter-spacing:.5px}
.member-monogram{font-size:20px;letter-spacing:.5px;white-space:nowrap}
@media(max-width:800px){.header-inner{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:0 12px;padding-top:15px}.brand{grid-column:1;grid-row:1}.brand>span{font-size:23px;letter-spacing:.5px}.settings-trigger{grid-column:2;grid-row:1}.header-inner nav{grid-column:1/-1;grid-row:2;margin-left:0;justify-content:space-between;min-height:44px}.member-monogram{font-size:20px;letter-spacing:.5px}}
@media(max-width:480px){.brand>span{font-size:21px}.member-monogram{font-size:18px}}

/* Course activation variants reuse the membership form and course palette. */
.member-course-switch{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;margin:0 0 22px;padding:6px;border:1px solid var(--member-line);border-radius:16px;background:var(--member-surface)}
.member-course-switch a{display:flex;align-items:center;justify-content:center;min-width:0;min-height:48px;padding:10px 12px;border:1px solid transparent;border-radius:10px;color:var(--member-muted);font-size:14px;font-weight:600;line-height:1.6;text-align:center;overflow-wrap:anywhere}
.member-course-switch a:hover{background:var(--member-soft);color:var(--member-deep)}
.member-course-switch a[aria-current="page"]{background:var(--member-soft);border-color:var(--member-purple);color:var(--member-deep)}
.member-course-switch a:focus-visible{outline:3px solid var(--member-purple);outline-offset:2px}
.member-course-page[data-member-course-page="gaokao"]{--activation-accent:var(--course-gaokao-accent);--activation-soft:var(--course-gaokao-soft)}
.member-course-page[data-member-course-page="ielts"]{--activation-accent:var(--course-ielts-accent);--activation-soft:var(--course-ielts-soft)}
.member-course-page[data-member-course-page="kaoyan"]{--activation-accent:var(--course-kaoyan-accent);--activation-soft:var(--course-kaoyan-soft)}
.member-course-page[data-member-course-page="cet"]{--activation-accent:color-mix(in srgb,var(--course-ielts-accent) 80%,var(--course-gaokao-accent));--activation-soft:color-mix(in srgb,var(--course-ielts-soft) 65%,var(--course-gaokao-soft))}
body:has(.member-course-page[data-member-course-page="gaokao"]){background:var(--course-gaokao-soft)}
body:has(.member-course-page[data-member-course-page="ielts"]){background:var(--course-ielts-soft)}
body:has(.member-course-page[data-member-course-page="kaoyan"]){background:var(--course-kaoyan-soft)}
body:has(.member-course-page[data-member-course-page="cet"]){background:color-mix(in srgb,var(--course-ielts-soft) 65%,var(--course-gaokao-soft))}
body:has(.member-course-page) .site-header{background:var(--color-surface);border-color:var(--color-line)}
.member-course-page .member-breadcrumb{color:var(--activation-accent);flex-wrap:wrap;gap:12px}
.member-course-page .member-course-switch{border-color:color-mix(in srgb,var(--activation-accent) 24%,var(--color-white));background:var(--color-surface)}
.member-course-page .member-course-switch a{color:var(--color-ink)}
.member-course-page .member-course-switch a:hover,.member-course-page .member-course-switch a[aria-current="page"]{background:var(--activation-soft);color:var(--activation-accent);border-color:var(--activation-accent)}
.member-course-page .member-course-switch a:focus-visible{outline-color:var(--activation-accent)}
.member-course-page .member-layout{--member-purple:var(--activation-accent);--member-deep:color-mix(in srgb,var(--activation-accent) 82%,var(--color-ink));--member-soft:var(--activation-soft);--member-bg:var(--activation-soft);--member-surface:color-mix(in srgb,var(--activation-soft) 24%,var(--color-white));--member-ink:color-mix(in srgb,var(--activation-accent) 25%,var(--color-ink));--member-muted:color-mix(in srgb,var(--activation-accent) 64%,var(--color-ink));--member-line:color-mix(in srgb,var(--activation-accent) 26%,var(--color-white));--member-gold:var(--activation-soft);grid-template-columns:minmax(0,.94fr) minmax(0,1.06fr);border-radius:28px;box-shadow:0 18px 48px color-mix(in srgb,var(--activation-accent) 10%,transparent)}
.member-course-page .member-art{min-height:780px;padding:40px;gap:100px}
.member-course-page .member-art>img{object-position:50% 36%}
.member-course-page .member-art:after{background:linear-gradient(180deg,color-mix(in srgb,var(--member-ink) 62%,transparent),transparent 30%,color-mix(in srgb,var(--member-ink) 14%,transparent) 48%,color-mix(in srgb,var(--member-ink) 92%,transparent))}
.member-course-page .member-art-top{display:flex;flex-direction:column;align-items:flex-start;gap:8px}
.member-course-page .member-art-top>span:last-child{font:14px/1.8 var(--font-ui);letter-spacing:.5px;color:var(--color-white)}
.member-course-page .member-monogram{font-size:25px;letter-spacing:1px;white-space:normal}
.member-course-page .member-art-copy p{font:500 clamp(32px,3.1vw,44px)/1.65 var(--font-reading);letter-spacing:1px;margin:0 0 20px;text-wrap:balance;overflow-wrap:anywhere}
.member-course-page .member-art-copy small{display:block;font-size:14px;line-height:1.9;color:var(--color-white)}
.member-course-page .member-panel{padding:42px 40px 36px;background-image:repeating-linear-gradient(0deg,transparent,transparent 39px,color-mix(in srgb,var(--member-line) 18%,transparent) 39px,color-mix(in srgb,var(--member-line) 18%,transparent) 40px)}
.member-course-page .member-eyebrow{font-size:15px;gap:12px;flex-wrap:wrap}
.member-course-page .member-panel h1{font-size:clamp(34px,3.4vw,44px);line-height:1.5;letter-spacing:1px;margin:12px 0 10px;overflow-wrap:anywhere}
.member-course-page .member-intro{font-size:15px;line-height:1.9;margin-bottom:20px}
.member-course-page .member-guide-trigger{font-size:16px;margin-bottom:16px}
.member-course-page .member-guide-selection{font-size:13px;margin-bottom:20px}
.member-course-page .member-modes{margin-top:4px}
.member-course-page .member-modes button{font-size:17px;min-height:48px}
.member-course-page .member-availability{font-size:13px;line-height:1.9;margin:18px 0 26px}
.member-course-page .member-fields{grid-template-columns:minmax(0,1fr);row-gap:4px}
.member-course-page .member-field label{font-size:16px;margin-bottom:10px}
.member-course-page .member-field input{min-height:60px;font-size:16px;padding:16px;background:var(--color-surface)}
.member-course-page .member-field input::placeholder{font-size:14px;opacity:1}
.member-course-page .member-password-wrap input{padding-right:96px}
.member-course-page .member-reveal{font-size:12px;min-height:44px;top:8px;bottom:8px}
.member-course-page .member-field-error{font-size:12px;min-height:22px;margin:5px 0 9px}
.member-course-page .member-submit.btn{font-size:21px;min-height:70px;margin-top:7px}
.member-course-page .member-form-bottom{font-size:12px;line-height:1.9;margin-top:16px}
.member-course-page .member-layout :is(button,a,summary):focus-visible{outline-color:var(--member-purple)}
@media(max-width:1000px){.member-course-page .member-layout{grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr)}.member-course-page .member-art{padding:30px 26px}.member-course-page .member-art-copy p{font-size:32px}.member-course-page .member-panel{padding:34px 28px}.member-course-page .member-panel h1{font-size:36px}.member-course-page .member-monogram{font-size:23px}.member-course-switch a{padding:10px 8px;font-size:13px}}
@media(max-width:760px){.member-course-page .member-layout{grid-template-columns:minmax(0,1fr)}.member-course-page .member-art{display:flex;min-height:270px;padding:28px;gap:34px}.member-course-page .member-art>img{object-position:50% 42%}.member-course-page .member-art:after{background:linear-gradient(90deg,color-mix(in srgb,var(--member-ink) 88%,transparent),color-mix(in srgb,var(--member-ink) 38%,transparent))}.member-course-page .member-art-top{gap:5px}.member-course-page .member-art-copy{margin-top:0;max-width:520px}.member-course-page .member-art-copy p{font-size:27px;line-height:1.55;margin:0}.member-course-page .member-art-copy small{font-size:12px;line-height:1.8;margin-top:12px}.member-course-page .member-panel{padding:30px}.member-course-page .member-panel h1{font-size:35px}}
@media(max-width:560px){.member-course-switch{grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;margin-bottom:16px;padding:5px;border-radius:12px}.member-course-switch a:first-child{grid-column:1/-1}.member-course-switch a{min-height:44px;font-size:13px;padding:8px}.member-course-page .member-art{min-height:238px;padding:24px;gap:28px}.member-course-page .member-monogram{font-size:22px}.member-course-page .member-art-top>span:last-child{font-size:12px}.member-course-page .member-art-copy p{font-size:25px}.member-course-page .member-art-copy small{font-size:12px}.member-course-page .member-panel{padding:28px 22px}.member-course-page .member-panel h1{font-size:32px}.member-course-page .member-eyebrow{font-size:13px}.member-course-page .member-intro{font-size:14px}.member-course-page .member-guide-trigger{font-size:14px}.member-course-page .member-modes button{font-size:16px;min-height:46px}.member-course-page .member-field label{font-size:15px}.member-course-page .member-field input{min-height:58px;padding:15px;font-size:16px}.member-course-page .member-password-wrap input{padding-right:92px}.member-course-page .member-reveal{top:7px;bottom:7px}.member-course-page .member-submit.btn{font-size:19px;min-height:66px}.member-course-page .member-form-bottom{font-size:11px}.member-course-page .member-layout{border-radius:20px}}
@media(forced-colors:active){.member-course-switch,.member-course-switch a[aria-current="page"],.member-course-page .member-course-switch a[aria-current="page"]{border:1px solid ButtonText}.member-course-switch a:focus-visible,.member-course-page .member-course-switch a:focus-visible,.member-course-page .member-layout :is(button,a,summary):focus-visible{outline-color:Highlight}.member-course-page .member-panel{background-image:none}}