@charset "UTF-8";
:root{--bg:#f7f7f3;--panel:#fff;--ink:#263d39;--muted:#77837d;--line:#e4e9e3;--green:#19594f;--green-dark:#123f39;--green-soft:#eaf2eb;--gold:#e6bd72;--gold-soft:#fbf2df;--red:#a94337;--red-soft:#fcf0ec;--blue:#4b7088;--radius:18px;--shadow:0 8px 24px #1c3d3210}
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8px;color:#4f7f49}.answer-feedback.wrong h3{color:#9e7950}.answer-feedback p{margin:6px 0 0;font-size:13px;color:#6e8764}.answer-feedback .example{margin-top:12px;padding-top:12px;border-top:1px solid #dce5d3}.quiz-controls{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-top:20px}.quiz-hint{font-size:11px;color:#94a18a;margin:15px 0 0;text-align:center}.result-panel{text-align:center;padding:40px 32px}.result-ring{display:grid;place-items:center;width:124px;height:124px;border:8px solid var(--green-soft);border-top-color:#719e76;border-right-color:#719e76;border-radius:50%;margin:10px auto 24px}.result-ring strong{font-size:34px;color:var(--green);font-weight:600}.result-ring small{font-size:13px;color:#9aa78f}.result-panel h2{font-size:25px;margin-bottom:10px}.result-panel p{color:#8a9c7f;font-size:13px}.result-panel .button-row{justify-content:center;margin-top:24px}.review-list{margin:23px 0}.review-item{background:#fff;border:1px solid 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1fr;gap:20px;align-items:start}.settings-grid .panel{margin-bottom:0}.settings-grid p,.about-panel p{font-size:13px;line-height:1.9;color:#7e9371}.settings-grid input[type=date]{border:1px solid var(--line);border-radius:9px;padding:10px;width:100%;background:#fff;color:var(--ink)}.settings-grid .field-label{margin-top:20px}.setting-line{display:flex;justify-content:space-between;gap:14px;border-top:1px solid var(--line);padding:12px 0;font-size:12px;color:#8a9d7c}.setting-line strong{color:#567d4d}.storage-warning{border:1px solid #e8d0a6;background:#fff7e7;color:#90713e;border-radius:10px;padding:12px 16px;font-size:12px;margin:0 0 20px}.about-panel{max-width:880px;margin:auto}.about-panel h3{margin:26px 0 10px}.about-panel a{color:var(--green);text-decoration:underline;text-underline-offset:3px}.about-panel ul{color:#7f9273;font-size:13px;padding-left:20px}.about-panel li{margin:8px 0}.license-table{font-size:12px;width:100%;border-collapse:collapse}.license-table td{padding:12px;border:1px solid var(--line);vertical-align:top}.main-footer{max-width:1510px;margin:auto;padding:12px 44px 25px;display:flex;justify-content:space-between;gap:20px;color:#a3ad99;font-size:10px}.main-footer a{color:#7d9771}.word-dialog{border:1px solid var(--line);border-radius:20px;max-width:640px;width:calc(100% - 32px);max-height:90vh;padding:0;color:var(--ink);box-shadow:0 30px 80px #13352233}.word-dialog::backdrop,.confirm-dialog::backdrop{background:#1d352751;backdrop-filter:blur(3px)}.dialog-header{padding:20px 27px 0;display:flex;justify-content:space-between;align-items:center;gap:12px}.dialog-content{padding:8px 30px 30px}.dialog-content .word-title{font-family:Georgia,serif;font-size:40px;margin:12px 0}.dialog-content .example{border-top:1px solid var(--line);padding:16px 0}.dialog-content .example .en{font-size:18px}.dialog-content .example .zh{font-size:13px}.dialog-content .button-row{padding-top:15px;justify-content:space-between;border-top:1px solid var(--line);margin-top:10px}.dialog-flip{min-height:260px;border:1px dashed #d5dfcd;border-radius:13px;background:#f7faf3;padding:28px;text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center;margin:19px 0}.dialog-flip .word-title{font-size:41px}.dialog-flip .definition{font-size:22px;margin:15px 0}.dialog-nav{display:flex;align-items:center;gap:10px;justify-content:center;margin:15px 0 0}.dialog-nav small{font-size:11px;color:#8a9e7b}.confirm-dialog{border:1px solid var(--line);border-radius:16px;padding:27px;max-width:440px;width:calc(100% - 32px);color:var(--ink)}.confirm-dialog h3{font-size:18px}.confirm-dialog p{font-size:13px;color:var(--muted);margin-bottom:24px}.confirm-dialog .button-row{justify-content:flex-end}#toast{position:fixed;bottom:25px;left:50%;transform:translate(-50%,15px);background:#243f32;color:#fff;padding:12px 23px;border-radius:10px;box-shadow:var(--shadow);font-size:13px;z-index:100;opacity:0;pointer-events:none;transition:opacity .15s,transform .15s;max-width:calc(100% - 35px);text-align:center}#toast.show{opacity:1;transform:translate(-50%,0)}.loading{text-align:center;color:#8c9e7e;padding:70px 0}.loading-ring{display:block;margin:0 auto 17px;width:30px;height:30px;border:3px solid var(--line);border-top-color:var(--green);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.no-script{position:fixed;inset:0;background:#fff;display:grid;place-items:center;color:var(--ink);z-index:100}.skip-link{position:fixed;top:8px;left:8px;padding:9px 14px;background:var(--green);color:#fff;z-index:200;transform:translateY(-150%)}.skip-link:focus{transform:translateY(0)}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(min-width:1500px){main{padding-top:43px}.hero{min-height:300px}.word-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.word-card{padding:22px 19px}}
@media(max-width:1150px){.sidebar{width:200px;padding:30px 17px}.app-shell{margin-left:200px}.topbar{padding:0 28px}main{padding:28px}.main-footer{padding-left:28px;padding-right:28px}.stat-grid{gap:11px}.stat-card{padding:15px 12px;gap:10px}.stat-num{font-size:20px}.stat-icon{width:31px;height:34px}.hero{padding:30px;grid-template-columns:1.15fr .85fr}.hero h2{font-size:27px}.floating-card{width:215px;padding:21px}.grammar-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.modules{gap:12px}.module-card{padding:18px}.home-bottom{grid-template-columns:1.1fr .9fr}}
@media(max-width:900px){.sidebar{width:180px;padding:25px 13px}.app-shell{margin-left:180px}.brand{font-size:17px;gap:9px}.brand-mark{width:35px;height:35px;font-size:24px}.brand small{font-size:7px}.nav-item{font-size:12px;gap:10px;padding:11px}.hero{display:block;padding:27px 30px}.hero-art{display:none}.hero-copy{max-width:100%}.hero p{max-width:450px}.stat-grid{grid-template-columns:repeat(2,1fr)}.stat-card{padding:15px 18px}.modules{grid-template-columns:1fr}.module-card{display:grid;grid-template-columns:45px 1fr;gap:0 13px;padding:18px}.module-card .module-icon{grid-row:1/4;margin-bottom:0}.module-card h3{margin-bottom:2px}.module-card p{margin-bottom:11px;line-height:1.5}.module-card .module-link{padding:10px 0 0;grid-column:2}.home-bottom{grid-template-columns:1fr}.word-grid{grid-template-columns:1fr}.settings-grid{grid-template-columns:1fr}.page-head{flex-wrap:wrap}.history-table td,.history-table th{padding:12px 8px}.setup-fields{gap:13px}}
@media(max-width:700px){.sidebar{display:none}.app-shell{margin-left:0;padding-bottom:69px}.topbar{height:65px;padding:0 19px;background:#fff}.breadcrumb{display:none}.mobile-brand{display:block;font-size:18px;font-weight:750;letter-spacing:.04em;color:var(--green)}.topbar-right{gap:8px}.exam-pill{font-size:10px;padding:5px 8px}.icon-button{width:35px;height:35px}.mobile-nav{position:fixed;display:flex;justify-content:space-around;bottom:0;left:0;right:0;border-top:1px solid var(--line);background:#fff;padding:8px 5px calc(8px + env(safe-area-inset-bottom));z-index:40}.mobile-nav a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;color:#9bab8c;font-size:9px;min-width:52px;padding:3px;border-radius:8px}.mobile-nav a.active{color:var(--green);background:#f0f6ec}.mobile-nav svg{width:20px;height:20px}main{padding:25px 19px 22px;min-height:calc(100vh - 180px)}.page-head{margin-bottom:22px}.page-head h1{font-size:25px}.page-head p{font-size:12px}.page-head .btn{padding:8px 12px;font-size:11px;min-height:38px}.eyebrow{font-size:9px}.hero{padding:26px;border-radius:17px;min-height:0;margin-bottom:19px}.hero h2{font-size:25px;line-height:1.6;margin-bottom:12px}.hero p{font-size:12px;margin-bottom:22px}.hero-actions .btn{padding:10px 13px;font-size:11px}.hero-actions svg{width:17px;height:17px}.stat-grid{gap:11px;margin-bottom:24px}.stat-card{padding:14px 12px}.stat-icon{width:34px;height:34px}.stat-num{font-size:20px}.stat-label{font-size:10px}.section-head h2{font-size:16px}.panel{padding:22px 20px}.home-bottom{gap:17px}.filter-bar{gap:8px}.searchbox{min-width:100%;padding:9px 12px}.filter-select{flex:1;min-width:0;width:100%;max-width:none;padding:10px 26px 10px 10px;font-size:11px}.category-tabs{flex-wrap:nowrap;overflow:auto;margin:0 -19px 20px;padding:0 19px 8px;scrollbar-width:thin}.category-button{flex-shrink:0;font-size:10px;padding:7px 9px}.word-card{padding:21px}.results-bar{font-size:11px;align-items:flex-start;flex-wrap:wrap}.toggle{font-size:11px}.word-definition{font-size:13px}.word-card .word-title{font-size:26px}.word-card .example .en{font-size:14px}.word-card .example .zh{font-size:11px}.word-card-foot{gap:9px}.grammar-grid{gap:12px;grid-template-columns:1fr}.grammar-card{padding:20px}.grammar-card p{min-height:0;margin-bottom:17px}.lesson-examples{grid-template-columns:1fr}.lesson-summary{font-size:13px;padding:16px 19px}.lesson-notes{font-size:13px;padding-left:19px}.lesson-bottom{flex-direction:column;align-items:stretch}.lesson-bottom .btn{width:100%}.quiz-modes{gap:8px;margin:16px 0 22px}.mode-button{padding:16px 10px}.mode-button.active{padding:15px 9px}.mode-button strong{font-size:12px}.mode-button small{font-size:9px}.mode-button svg{margin-bottom:10px;width:20px;height:20px}.setup-fields{grid-template-columns:1fr;gap:15px}.quiz-start{align-items:stretch;flex-direction:column}.quiz-start .btn{width:100%}.quiz-pool-note{padding:15px;font-size:11px}.quiz-card{padding:23px 20px;min-height:350px}.quiz-prompt{font-size:31px}.quiz-prompt.zh-prompt{font-size:22px}.quiz-stem{font-size:17px}.option-button{padding:12px;font-size:13px;gap:10px}.quiz-controls .btn{padding:9px 13px;font-size:12px}.quiz-hint{font-size:10px}.answer-feedback{padding:16px;font-size:12px}.answer-feedback p{font-size:12px}.result-panel{padding:30px 20px}.result-panel h2{font-size:21px}.review-item{padding:18px}.review-item h3{font-size:16px}.history-table{font-size:11px}.history-table th{font-size:10px}.history-table td:first-child{font-size:10px}.table-wrap{overflow:auto}.history-table{min-width:475px}.main-footer{padding:10px 19px 22px;font-size:9px}.dialog-header{padding:17px 20px 0}.dialog-content{padding:5px 22px 23px}.dialog-content .word-title{font-size:35px}.dialog-content .example .en{font-size:16px}.dialog-content .example .zh{font-size:12px}.dialog-content .button-row .btn{font-size:11px;padding:10px}.dialog-flip{padding:20px;min-height:235px}.dialog-nav{flex-wrap:wrap}.word-dialog{max-height:85vh}#toast{bottom:88px;font-size:12px}.license-table td{padding:9px;font-size:11px}}
.muted,.stat-label,.filter-select,.results-bar,.toggle,.page-head p,.module-card p,.grammar-card p,.settings-grid p,.about-panel p{color:#677761}
.word-card .example .zh,.dialog-content .example .zh,.lesson-example .zh{color:#65785f}
.word-category,.grammar-card .unit-stat,.home-word-row small,.tip,.lesson-bottom small,.quiz-start small,.quiz-hint{color:#6d7d66}
.nav-item{color:#637363}.nav-item.active{color:var(--green)}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}