:root{--green:#245c49;--ink:#253e34;--muted:#7e887e;--paper:#faf9f5}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:15px 'DM Sans','Microsoft YaHei',sans-serif}button,select,input,textarea{font:inherit}button,.restore{cursor:pointer;border:1px solid #dce2d9;background:white;border-radius:7px;padding:9px 13px;color:var(--ink)}button:hover{background:#eaf0e8}button:disabled{opacity:.5;cursor:wait}.primary{background:var(--green);color:white;border-color:var(--green)}aside{width:244px;position:fixed;inset:0 auto 0 0;background:#f0f2e9;padding:38px 28px;border-right:1px solid #e0e4da}.brand{font:700 48px Georgia;text-decoration:none;color:var(--green)}.brand span{color:#a3ad68}aside h3{font-size:19px;margin:20px 0 10px}.muted{color:var(--muted);font-size:13px;line-height:1.7}nav{display:grid;gap:10px;margin-top:44px}nav button{text-align:left;background:transparent;border:0;padding:13px}nav button:first-child{background:#e0e8da;color:var(--green)}.aside-bottom{position:absolute;bottom:34px;font-size:9px;line-height:2;letter-spacing:1px;color:#7c8b79}main{margin-left:244px;padding:0 48px 40px;max-width:1600px}header{height:97px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #e4e6de;font-size:12px;color:#819082}header b{color:var(--green);font-weight:500}.intro{padding:40px 0 35px}.eyebrow{font-size:10px;letter-spacing:2px;color:#7c8d6d}h1{font-size:33px;font-weight:500;margin:14px 0}.intro p{color:var(--muted);font-size:14px}.workspace{display:grid;grid-template-columns:230px minmax(0,1fr);gap:28px}.section-head{display:flex;justify-content:space-between;align-items:center;font-weight:600;margin:0 0 19px}.section-head span{color:#87927a;font-size:12px}.card{display:block;width:100%;text-align:left;margin-bottom:10px;padding:18px;background:transparent;border:1px solid #e0e5da}.card.active{background:#edf1e6;border-color:#9cab8b}.card strong{display:block;font:15px Georgia;line-height:1.6}.card small{display:block;color:var(--muted);font-size:11px;margin-top:10px}.tip{margin:30px 0;padding:19px;background:#eff0e5;font-size:12px;line-height:1.8;border-radius:9px}.tip p{color:#7c8874;margin-bottom:0}#export,.restore{font-size:11px;display:block;margin-top:9px;text-align:center}article{background:#fff;border:1px solid #e3e5dd;border-radius:12px;padding:32px 40px;min-height:580px;box-shadow:0 6px 25px #273e3310}.reader-top{display:flex;justify-content:space-between;align-items:center;gap:12px}.reader-top button,.reader-top select{font-size:11px;padding:7px;border:1px solid #e1e6dc;border-radius:5px;background:white;color:var(--green)}.badge{font-size:9px;letter-spacing:1.4px;color:var(--green);background:#edf3e9;padding:7px 9px;border-radius:4px}h2{font:400 30px/1.4 'Libre Baskerville',Georgia,serif;margin:25px 0 12px}.actions{display:flex;flex-wrap:wrap;gap:7px;margin:22px 0}.actions button{font-size:11px}.english{font:18px/1.95 'Libre Baskerville',Georgia,serif;color:#344239;margin:24px 0 10px;white-space:pre-wrap}.chinese{font-size:14px;line-height:1.95;color:#8a9288;margin:0;padding-bottom:21px;border-bottom:1px solid #f0f1ec;white-space:pre-wrap}.hidden-cn .chinese{display:none}footer{margin-top:35px;border-top:1px solid #edf0e9;padding-top:20px;font-size:10px;color:#919b8e;display:flex;justify-content:space-between}dialog{border:0;border-radius:16px;width:min(680px,94vw);max-height:90vh;padding:30px;color:var(--ink)}dialog::backdrop{background:#172d2370}label{display:block;font-size:12px;margin:16px 0}input:not([type=file]),textarea{display:block;width:100%;padding:11px;border:1px solid #d8dfd3;border-radius:7px;margin-top:8px;background:#fcfcf9}textarea{resize:vertical}.notice,#status{font-size:12px;line-height:1.8;color:#8a7657}#popup{position:fixed;z-index:10;bottom:30px;left:50%;transform:translateX(-50%);background:#244b3c;color:white;padding:17px;border-radius:12px;box-shadow:0 8px 35px #0003;max-width:95vw}#popup button{font-size:12px;margin-left:8px}#popup small{display:block;margin-top:10px;color:#c3d2bf}.vocab-row{padding:16px 0;border-bottom:1px solid #eee;display:flex;justify-content:space-between;align-items:center}.help{line-height:2;color:#637263}a{color:var(--green)}@media(max-width:1100px){aside{width:190px;padding:30px 20px}main{margin-left:190px;padding:0 24px}.workspace{grid-template-columns:180px minmax(0,1fr);gap:18px}article{padding:25px}}@media(max-width:760px){aside{position:static;width:100%;padding:16px 20px}aside h3{display:inline;margin-left:18px}aside p,.aside-bottom{display:none}.brand{font-size:30px}nav{display:flex;margin-top:12px;gap:3px}nav button{padding:8px;font-size:12px}main{margin:0;padding:0 16px}header{height:68px}.intro{padding:26px 0}h1{font-size:27px}.workspace{display:block}.booklist{margin-bottom:20px}#articles{display:flex;overflow:auto;gap:10px}.card{min-width:180px;max-width:210px}.tip{display:none}#export,.restore{display:inline-block;margin-right:8px}article{padding:24px 20px}.reader-top{flex-wrap:wrap}h2{font-size:25px}.english{font-size:17px}}
[hidden]{display:none!important}.login-screen{position:fixed;inset:0;z-index:100;background:#f0f2e9;display:grid;place-items:center;padding:24px;overflow:auto}.login-card{background:white;border:1px solid #dce2d9;box-shadow:0 16px 60px #244b3c12;border-radius:18px;padding:38px;width:min(420px,100%)}.login-card h1{font-size:25px}.login-card .primary{width:100%;margin-top:16px}.check{display:flex;align-items:center;gap:8px}.check input{width:auto!important;margin:0!important}#popup{width:390px;max-height:70vh;overflow:auto;left:auto;right:28px;bottom:24px;transform:none;padding:23px}#popup .pop-head{display:flex;justify-content:space-between;align-items:center}#popup strong{font:25px Georgia}#popup p{line-height:1.7;font-size:14px;white-space:pre-wrap}#popup .sounds{display:flex;gap:9px}#popup .sounds button{flex:1;margin:0;text-align:left;display:grid;gap:7px}#popup .sounds small{color:#607663;margin:0}#popup #saveWord{margin:12px 0 0}#popup .word-example{font-size:12px;color:#cfdfcf}.correction,.vocab-item{padding:16px 0;border-bottom:1px solid #e8ede4}.correction p{line-height:1.7}.correction small{color:#7e887e}#reading form{max-width:480px}aside nav{gap:4px;margin-top:24px}aside nav button{padding:10px}.login-card .brand{font-size:40px}#processStatus{min-height:24px}@media(max-width:760px){#popup{right:12px;bottom:12px;width:calc(100% - 24px)}nav{flex-wrap:wrap!important}.login-card{padding:26px}}

/* Reading workflow: directory, editing, and real server progress. */
.catalog-mode{grid-template-columns:minmax(0,1fr)}.catalog-mode .booklist{display:none}.catalog-mode article{min-height:500px}.catalog-list{margin:24px 0}.catalog-item{display:flex;align-items:center;gap:22px;padding:24px 6px;border-bottom:1px solid #e9ede5;text-decoration:none}.catalog-item:hover{background:#f6f8f2}.catalog-item strong{font:19px/1.6 Georgia,serif}.catalog-item small{display:block;margin-top:8px;font-size:12px;color:var(--muted)}.catalog-number{color:#a0ad98;font:22px Georgia}.catalog-arrow{margin-left:auto;color:#8da17e}.demo-link{display:inline-block;margin:12px 0;font-size:13px}input[type=search]{max-width:520px}.english-block{position:relative;padding-bottom:32px;margin-top:24px}.english-block .english{margin:0}.paragraph-speak{position:absolute;right:0;bottom:1px;display:flex;align-items:center;justify-content:center;padding:6px 8px;border:0;background:#f0f5ec;color:var(--green)}.paragraph-speak:hover{background:#dde9d5}.chinese{margin-top:8px}.processing-panel{padding:16px;background:#f1f5ed;border:1px solid #dce6d5;border-radius:10px;margin:16px 0;color:#496343}.processing-label{font-size:13px;line-height:1.7;margin:0 0 12px}.processing-panel small{font-size:11px;line-height:1.7;color:#74816d}.progress-track{height:8px;border-radius:8px;background:#dde6d7;overflow:hidden;margin-bottom:10px}.progress-fill{height:100%;width:0;background:#46734f;border-radius:8px;transition:width .45s ease}.working .progress-fill{background:linear-gradient(90deg,#46734f,#90b17c,#46734f);background-size:200% 100%;animation:progress-shine 2s linear infinite}.processing-panel.failed{background:#fff6ed;border-color:#ead9c4;color:#93663a}.manual-editor{width:min(880px,94vw)}.paragraph-editor{background:#f8faf5;border:1px solid #e0e7d9;border-radius:10px;padding:20px;margin:20px 0}.paragraph-editor .section-head{margin-bottom:8px}.paragraph-editor button{font-size:12px}.manual-editor .actions{position:sticky;bottom:-30px;background:white;padding:15px 0;margin-bottom:0}.en-edit{font:16px/1.7 Georgia,serif}.zh-edit{line-height:1.7}#popup{top:50%;bottom:auto;transform:translateY(-50%);max-height:80vh}button:focus-visible,a:focus-visible{outline:3px solid #8da976;outline-offset:3px}@keyframes progress-shine{to{background-position:-200% 0}}@media(prefers-reduced-motion:reduce){.working .progress-fill{animation:none}.progress-fill{transition:none}}@media(max-width:760px){#popup{right:12px;top:50%;bottom:auto;width:calc(100% - 24px);max-height:80vh}.catalog-item{gap:14px;padding:20px 0}.catalog-item strong{font-size:17px}.paragraph-editor{padding:14px}.catalog-number{font-size:18px}}

header{position:sticky;top:0;z-index:15;background:var(--paper);gap:16px;flex-wrap:wrap;min-height:86px;height:auto;padding:15px 0}.pane-controls{display:flex;gap:6px;flex-wrap:wrap}.pane-controls button{font-size:12px;padding:8px 10px}.nav-collapsed aside{display:none}.nav-collapsed main{margin-left:0;max-width:none}.list-collapsed .workspace{grid-template-columns:minmax(0,1fr)}.list-collapsed .booklist{display:none}.audio-status{font-size:12px;color:#527448;line-height:1.8}button[aria-pressed=true]{background:#dcead6;color:#234f35;box-shadow:inset 0 0 0 1px #98b08e}.paragraph-speak{min-width:32px;min-height:30px}aside{overflow-y:auto}.aside-bottom{position:static;margin-top:44px}#popup{z-index:25}nav button:first-child{background:transparent}nav button.active-nav{background:#e0e8da}.social-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:26px}.social-panel{border:1px solid #e1e7da;border-radius:12px;padding:20px}.social-panel h3{margin-top:0;font-size:17px}.social-row{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:16px 0;border-bottom:1px solid #edf0e8}.social-row .actions{margin:0;flex-shrink:0}.social-row small{display:block;color:var(--muted);font-size:12px;margin-top:6px}.social-panel form{max-width:none!important}.social-row button{font-size:12px}.friend-check{display:flex;gap:10px;align-items:center}.friend-check input{display:inline!important;width:auto!important;margin:0!important}.friend-options{max-height:230px;overflow:auto;border:1px solid #e0e6d8;border-radius:8px;padding:0 14px}.share-dialog .actions{margin:14px 0}.chat-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:24px}.chat-log{height:400px;overflow:auto;border:1px solid #e3e8df;border-radius:10px;background:#fafbf7;padding:18px;display:flex;flex-direction:column;gap:18px}.chat-message{align-self:flex-start;max-width:90%;background:white;border:1px solid #e0e7da;border-radius:10px;padding:12px 15px;min-width:90px}.chat-message.mine{align-self:flex-end;background:#e7f0df}.chat-message small{display:block;font-size:10px;color:#75816c;margin-bottom:8px}.chat-message p{white-space:pre-wrap;overflow-wrap:anywhere;margin:0;line-height:1.8;font-size:14px}.chat-compose textarea{min-height:85px}.chat-compose .actions{margin:10px 0}.group-article{display:block;padding:14px 0;border-bottom:1px solid #e6eade;line-height:1.6}.group-members{margin-top:24px}.share-target{display:flex;gap:10px;align-items:end}.share-target label{flex:1}.share-target select{display:block;width:100%;padding:10px;margin-top:8px;max-width:100%}.share-target button{margin-bottom:16px}.refresh-button{margin-bottom:18px}.ownership-note{font-size:12px;color:#75816c}.group-top-actions{margin:16px 0}.chat-notice{font-size:12px;line-height:1.8;color:#7d755e}.group-invite{margin-top:16px}.community-link{margin-top:22px}.chat-sidebar h3{font-size:16px}.catalog-item strong,.social-row strong{overflow-wrap:anywhere}@media(max-width:1100px){.social-grid,.chat-layout{grid-template-columns:minmax(0,1fr)}.chat-sidebar{border-top:1px solid #e0e6d8;padding-top:20px}.chat-log{height:360px}}@media(max-width:760px){header{gap:10px;padding:12px 0}header>span{display:none}main{max-width:none}.nav-collapsed main{padding:0 16px}.social-panel{padding:16px}.social-row{flex-wrap:wrap}.chat-log{height:350px}.chat-message{max-width:95%}.share-target{display:block}.social-grid{gap:18px}}

.visibility-form{border:1px solid #dce6d3;background:#f5f8ef;border-radius:10px;padding:16px;margin:18px 0}.visibility-form select{display:block;width:100%;padding:10px;margin-top:8px;border:1px solid #d5dfcd;border-radius:6px}button#shareArticle{background:#eff4e7}
.manual-intro{padding:24px;background:#eff3e8;border:1px solid #e0e6d7;border-radius:12px;margin:24px 0}.manual-eyebrow{font-size:10px;letter-spacing:2px;color:#658251}.manual-intro h3{font-size:24px;font-weight:500;margin:14px 0}.manual-quick{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}.manual-quick button{font-size:12px}.manual-toc{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:22px 0}.manual-toc a{padding:12px;border:1px solid #e2e8da;border-radius:7px;font-size:12px;text-decoration:none;line-height:1.7}.manual-toc a:hover{background:#f2f6ed}.manual-result,.manual-updated{font-size:12px;color:#7b8971;line-height:1.8}.manual-section{border-top:1px solid #e5eadd;padding:24px 0;scroll-margin-top:130px}.manual-section h3{font-size:20px;font-weight:500;margin:4px 0 12px}.manual-summary{color:#67805e;font-size:13px;line-height:1.8}.manual-section ol{padding-left:24px;margin:18px 0 0}.manual-section li{font-size:14px;line-height:2;color:#4d604d;padding-left:6px;margin-bottom:13px}.manual-section details{border-bottom:1px solid #edf0e7;padding:14px 0}.manual-section summary{cursor:pointer;font-size:14px;line-height:1.8}.manual-section details p{font-size:13px;line-height:2;color:#677565;padding:0 4px 0 18px}.manual-section details[open] summary{color:#245c49;font-weight:600}@media(max-width:1000px){.manual-toc{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:760px){.manual-intro{padding:18px}.manual-intro h3{font-size:20px}.manual-toc{gap:8px}.manual-toc a{padding:10px;font-size:11px}.manual-section h3{font-size:18px}.manual-section li{font-size:13px}.manual-section{scroll-margin-top:110px}}

.header-actions{display:flex;align-items:center;gap:14px;flex-shrink:0}.header-identity{display:inline-flex;align-items:center;max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding:8px 12px;border:1px solid #dce2d9;border-radius:20px;color:var(--green);background:#f0f2e9;font-size:13px}.header-identity[hidden]{display:none}.title-zh{font-size:20px;line-height:1.6;color:#6c7d70;margin:-6px 0 20px}.title-zh[hidden]{display:none}.card-title-zh,.catalog-title-zh{display:block;color:#6c7d70;font-size:13px;line-height:1.6;margin-top:8px}@media(max-width:760px){header{height:auto;min-height:68px;flex-wrap:wrap}.header-actions{margin-left:auto;gap:8px}.header-identity{max-width:120px;font-size:12px}.title-zh{font-size:17px}}

.meeting-panel{padding:20px;margin:16px 0 28px;border:1px solid #dce2d9;border-radius:12px;background:#f7f9f3}.meeting-panel label{display:flex;align-items:center;gap:8px}.meeting-panel input[type=checkbox]{width:auto;margin:0}.meeting-status{font-size:13px;line-height:1.7;color:#576e5c}.meeting-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.meeting-person{padding:12px;min-width:0;border-radius:8px;background:#fff}.meeting-person strong,.meeting-person small{display:block;margin-bottom:8px}.meeting-person video{width:100%;max-height:440px;background:#18291f;border-radius:8px;object-fit:contain}.meeting-person video[hidden]{display:none}.meeting-panel button[hidden]{display:none}@media(max-width:760px){.meeting-grid{grid-template-columns:1fr}.meeting-panel{padding:12px}}

.meeting-floating{position:fixed;right:20px;bottom:20px;z-index:30;width:min(650px,94vw);max-height:80vh;overflow:auto;box-shadow:0 12px 50px #15332540;margin:0}.meeting-minimized .meeting-grid,.meeting-minimized .help,.meeting-minimized label{display:none}.meeting-minimized{width:min(480px,94vw)}