:root{--bg:#f6f3ec;--paper:#fffefa;--ink:#273630;--muted:#7b857e;--green:#284c3d;--green2:#416b54;--line:#e7e7dc;--accent:#e9b678;--soft:#ecf1e9}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:'DM Sans','Noto Sans SC',sans-serif}button{font:inherit;cursor:pointer}button:focus-visible,a:focus-visible{outline:3px solid #deae6b;outline-offset:3px}a{color:inherit;text-decoration:none}.app-shell{display:flex;min-height:100vh}.sidebar{width:240px;min-width:240px;background:#f9f7f1;border-right:1px solid var(--line);padding:29px 19px 25px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}.brand{display:flex;align-items:center;gap:10px;padding:0 9px;font-size:25px;font-weight:700;letter-spacing:2px}.brand-mark{width:39px;height:39px;background:var(--green);color:white;border-radius:11px;display:grid;place-items:center;font-size:24px}.brand-en{display:block;font-size:9px;letter-spacing:2.2px;color:#829087;font-weight:700;margin-top:-2px}.side-label{font-size:11px;letter-spacing:1.5px;color:#a4aaa2;margin:60px 13px 15px}.side-nav{display:grid;gap:6px}.nav-item{border:0;background:transparent;text-align:left;border-radius:11px;padding:13px 14px;color:#64736a;font-size:14px;font-weight:600;display:flex;gap:12px;align-items:center}.nav-item span{font-size:20px;width:19px;text-align:center;line-height:1}.nav-item.active,.nav-item:hover{background:#e8eee5;color:var(--green)}.nav-item b{margin-left:auto;background:var(--accent);color:#4b3b27;border-radius:99px;padding:1px 6px;font-size:10px}.side-bottom{margin-top:auto;border-top:1px solid var(--line);padding:24px 9px 0;display:flex;align-items:center;gap:10px}.avatar{width:36px;height:36px;border-radius:50%;background:#dfe8dd;color:var(--green);display:grid;place-items:center;font-family:Georgia,serif;font-weight:bold}.side-bottom strong{display:block;font-size:12px}.side-bottom small{display:block;color:#a4aaa2;font-size:10px;margin-top:4px}.main{flex:1;min-width:0;padding:0 5.7% 70px;max-width:1500px}.topbar{height:83px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:12px;color:#7e8c82}.breadcrumb span{margin:0 9px;color:#b9c1b8}.breadcrumb span:last-child{color:var(--green)}.top-date{text-transform:uppercase;letter-spacing:1px}.view{display:none;animation:rise .35s ease}.view.active{display:block}@keyframes rise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}.eyebrow{font-size:10px;letter-spacing:2.4px;color:#7d957f;font-weight:700;display:inline-flex;align-items:center;gap:15px}.eyebrow-line{width:27px;height:1px;background:#abbbae}#home-view>.eyebrow{margin-top:50px}.welcome-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:34px}.welcome-row h1,.page-head h1{font-size:clamp(31px,4vw,53px);line-height:1.4;letter-spacing:-1.5px;margin:16px 0 12px;font-weight:600}.welcome-row h1 em{font-style:normal;color:#61816a}.welcome-row p,.page-head p{color:var(--muted);font-size:14px;margin:0}.stamp{width:114px;height:114px;border:1.5px solid #cbd7c9;color:#819985;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;transform:rotate(13deg);font-family:Georgia,serif;font-size:26px;line-height:1;text-align:center}.stamp span{font-family:'DM Sans',sans-serif;font-size:7px;letter-spacing:1px;line-height:1.45;margin-top:7px}.hero-card{background:#dfe8dc;border-radius:17px;min-height:263px;display:flex;overflow:hidden;position:relative}.hero-copy{padding:38px 42px;position:relative;z-index:2;max-width:61%}.pill{display:inline-block;background:#eff4e9;color:#5b735e;font-size:10px;letter-spacing:.5px;border-radius:99px;padding:8px 12px;font-weight:700}.hero-copy h2{font-size:25px;margin:21px 0 8px}.hero-copy p{font-size:12px;color:#708376;line-height:1.8;margin:0 0 23px}.primary-btn{background:var(--green);color:#fff;border:1px solid var(--green);border-radius:8px;padding:11px 18px;font-size:12px;font-weight:700;display:inline-flex;gap:35px;align-items:center;justify-content:space-between}.primary-btn:hover{background:#37644e}.primary-btn span{font-size:17px;font-weight:400}.hero-art{position:absolute;right:3%;top:0;width:37%;height:100%}.art-circle{position:absolute;width:270px;height:270px;border-radius:50%;background:#cadaca;right:8%;top:35%;opacity:.7}.sheet{position:absolute;background:#fbfbf5;border:1px solid #eff0e5;box-shadow:0 18px 36px #526e5540;border-radius:6px;width:170px;height:210px;z-index:1}.sheet-back{top:48px;right:88px;transform:rotate(-15deg)}.sheet-front{top:28px;right:28px;transform:rotate(11deg);padding:22px}.sheet-front span{font-family:Georgia,serif;font-size:35px;color:#b4c4b3}.sheet-front i{display:block;background:#dae5d9;height:5px;border-radius:5px;margin:14px 0;width:100%}.sheet-front i.short{width:70%}.sheet-front b{display:block;letter-spacing:5px;font-size:10px;color:#9aaf99;margin-top:27px}.section-heading{display:flex;justify-content:space-between;align-items:center;margin:42px 0 16px}.section-heading>div{display:flex;align-items:center;gap:10px}.section-heading h2{font-size:19px;margin:0}.section-index{font-size:11px;color:#89a08d;border:1px solid #c8d5c9;border-radius:50%;width:26px;height:26px;display:grid;place-items:center}.muted{font-size:11px;color:#a1aaa0}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.stat-card{background:var(--paper);border:1px solid #ecece4;border-radius:12px;padding:22px 24px;min-height:112px}.stat-card span{display:block;color:#859287;font-size:11px}.stat-card strong{font-size:33px;font-weight:600;margin-top:7px;display:inline-block;line-height:1}.stat-card small{color:#89998c;font-size:11px;margin-left:6px}.text-link{border:0;background:none;color:#66826c;font-size:11px}.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.category-card{background:var(--paper);border:1px solid #ecece4;border-radius:12px;padding:20px;min-height:160px;text-align:left;transition:transform .18s,box-shadow .18s}.category-card:hover{transform:translateY(-3px);box-shadow:0 8px 20px #243e2c12}.category-icon{width:36px;height:36px;border-radius:10px;background:#edf2e9;color:#618369;display:grid;place-items:center;font-size:19px}.category-card h3{margin:15px 0 5px;font-size:16px}.category-card p{font-size:11px;color:#9aa59a;margin:0}.category-card .card-foot{display:flex;justify-content:space-between;align-items:center;margin-top:16px;color:#5f7d65;font-size:11px}.notice{display:flex;gap:13px;margin-top:32px;padding:16px 19px;background:#f0eee4;border-radius:10px;color:#768073}.notice>span{color:#c29d63;font-size:20px}.notice p{margin:0;font-size:11px;line-height:1.8}.notice strong{font-size:12px;color:#586653}.page-head{margin:52px 0 30px}.page-head h1{margin:8px 0 7px}.paper-feature{background:#dfe8dc;border-radius:16px;display:flex;justify-content:space-between;align-items:center;padding:28px 32px}.paper-feature h2{margin:16px 0 6px;font-size:23px}.paper-feature p{margin:0;color:#748775;font-size:12px}.empty-state{background:var(--paper);border:1px dashed #d5ddd1;border-radius:15px;padding:65px 25px;text-align:center;color:#8a998c}.empty-state .empty-icon{font-size:34px;color:#abc1aa}.empty-state h3{color:var(--green);font-size:18px;margin:10px 0 7px}.empty-state p{font-size:12px}.review-list{display:grid;gap:12px}.review-item{background:var(--paper);border:1px solid var(--line);border-radius:11px;padding:18px 20px;display:flex;justify-content:space-between;align-items:center;gap:15px}.review-item h3{font-size:14px;margin:5px 0}.review-item small{color:#91a094;font-size:11px}.review-item button{border:1px solid #d4dfd1;background:#edf3eb;color:var(--green);padding:8px 12px;border-radius:7px;white-space:nowrap;font-size:11px}.exam-header{padding:29px 0 18px}.back-link{background:none;border:0;padding:0;color:#69816f;font-size:12px}.exam-meta{display:flex;justify-content:space-between;align-items:center;margin-top:23px;padding-bottom:17px;border-bottom:1px solid var(--line);font-weight:700}.timer{font-variant-numeric:tabular-nums;background:#eaf0e7;color:var(--green);border-radius:7px;padding:8px 12px;font-size:13px}.exam-layout{display:grid;grid-template-columns:minmax(0,1fr) 235px;gap:24px;margin-top:25px}.exam-main,.side-card{background:var(--paper);border:1px solid var(--line);border-radius:13px}.exam-main{padding:32px 36px}.exam-progress{display:flex;justify-content:space-between;color:#829383;font-size:11px;border-bottom:1px solid var(--line);padding-bottom:18px}.q-type{display:inline-block;margin-top:27px;color:#65906f;background:#edf3eb;border-radius:5px;padding:6px 9px;font-size:10px}.passage{background:#f6f7f0;border-left:3px solid #a9bfa8;padding:18px 21px;margin:19px 0;color:#4f6056;line-height:1.85;font-size:13px;white-space:pre-line}.question-prompt{font-size:20px;line-height:1.6;margin:19px 0 20px}.option-list{display:grid;gap:10px}.option{display:flex;align-items:flex-start;gap:13px;text-align:left;width:100%;border:1px solid #e4e9df;background:#fffefa;border-radius:9px;padding:13px 15px;color:#43534a;line-height:1.5;font-size:13px}.option:hover{border-color:#9cb59e}.option.selected{border-color:#638b6c;background:#edf4eb}.option.correct{border-color:#7db48b;background:#ecf7ed}.option.incorrect{border-color:#d58e7d;background:#fbefec}.option-letter{flex:none;border:1px solid #cbd9ca;border-radius:5px;width:24px;height:24px;display:grid;place-items:center;font-weight:700;font-size:11px}.option.selected .option-letter{background:var(--green);color:#fff;border-color:var(--green)}.answer-textarea{width:100%;min-height:190px;border:1px solid #dfe7da;border-radius:9px;padding:15px;resize:vertical;background:#fffefa;font:13px/1.8 inherit;color:var(--ink)}.answer-textarea:focus{outline:2px solid #a2bea5}.word-count{text-align:right;color:#9aa79a;font-size:11px;margin-top:6px}.explanation{border-top:1px solid var(--line);margin-top:28px;padding-top:20px;color:#607166;font-size:13px;line-height:1.8}.explanation strong{color:var(--green)}.exam-actions{display:flex;justify-content:space-between;gap:10px;margin-top:38px}.secondary-btn{background:#fffefa;color:var(--green);border:1px solid #d3dfd2;border-radius:8px;padding:10px 15px;font-size:12px}.secondary-btn:disabled{opacity:.4;cursor:not-allowed}.side-card{padding:21px}.side-card h3{margin:0;font-size:15px}.side-card p{font-size:11px;color:#a0aba0}.answer-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:7px;margin-top:20px}.answer-grid button{aspect-ratio:1;border:1px solid #dfe6db;background:#f9faf6;border-radius:6px;color:#718275;font-size:11px}.answer-grid button.answered{background:#dcebdd;border-color:#bdd4c0;color:#345943}.answer-grid button.current{outline:2px solid #365b43;outline-offset:1px}.legend{display:flex;gap:12px;font-size:10px;color:#9aa99b;margin:19px 0}.legend span{display:flex;align-items:center;gap:5px}.legend i{width:9px;height:9px;border-radius:2px;border:1px solid #dfe6db;background:#f9faf6}.legend span:last-child i{background:#dcebdd}.submit-btn{width:100%;border:0;background:var(--green);color:white;padding:12px;border-radius:8px;font-size:12px}.save-note{font-size:10px;color:#a7b1a4;text-align:center;margin-top:16px}.result-hero{background:#dfe8dc;border-radius:15px;padding:28px 32px;display:flex;justify-content:space-between;align-items:center}.result-hero h2{margin:0 0 7px;font-size:24px}.result-hero p{margin:0;color:#728474;font-size:12px}.result-score{font-family:Georgia,serif;font-size:40px;color:var(--green)}.result-score small{font-family:inherit;font-size:14px}.result-actions{display:flex;gap:10px;margin-top:20px}.result-list{display:grid;gap:12px;margin-top:25px}.result-item{background:var(--paper);border:1px solid var(--line);border-radius:11px;padding:21px}.result-item .result-top{display:flex;justify-content:space-between;gap:10px}.result-item h3{font-size:15px;margin:10px 0}.result-item p{color:#78897b;font-size:12px;line-height:1.7;margin:6px 0}.result-item .tag{font-size:10px;border-radius:99px;padding:5px 9px;background:#edf2ea;color:#5a8061;white-space:nowrap}.result-item .tag.wrong{background:#faebe8;color:#a76557}.bookmark-btn{border:0;background:transparent;color:#8ea28d;font-size:21px;padding:0}.bookmark-btn.saved{color:#d3a663}dialog{border:0;border-radius:14px;padding:0;box-shadow:0 20px 60px #19291b4d;max-width:400px;width:calc(100% - 30px)}dialog::backdrop{background:#13211883}.dialog-inner{padding:26px}.dialog-inner h3{margin:0 0 9px}.dialog-inner p{color:#718174;font-size:13px;line-height:1.6}.dialog-actions{display:flex;justify-content:flex-end;gap:9px;margin-top:22px}.mobile-nav{display:none}@media(max-width:1000px){.main{padding:0 4% 60px}.sidebar{width:205px;min-width:205px}.hero-copy{max-width:65%}.hero-art{right:-3%}}@media(max-width:760px){.sidebar{display:none}.main{padding:0 19px 100px}.topbar{height:61px}.top-date{display:none}#home-view>.eyebrow{margin-top:35px}.welcome-row{margin-bottom:26px}.welcome-row h1{font-size:34px}.stamp{display:none}.hero-card{min-height:235px}.hero-copy{max-width:100%;padding:26px 22px}.hero-copy h2{font-size:21px}.hero-copy p{max-width:225px}.hero-art{opacity:.33;right:-25%;width:80%}.section-heading{margin-top:35px}.stats-grid{gap:7px}.stat-card{padding:16px 11px;min-height:100px}.stat-card strong{font-size:25px}.category-grid{grid-template-columns:repeat(2,1fr);gap:9px}.category-card{padding:15px;min-height:150px}.paper-feature{display:block;padding:24px}.paper-feature .primary-btn{margin-top:23px}.exam-layout{grid-template-columns:1fr}.exam-main{padding:21px}.exam-side{order:-1}.side-card{padding:16px}.side-card h3,.side-card p,.legend,.save-note{display:none}.answer-grid{grid-template-columns:repeat(10,1fr);margin:0 0 12px}.answer-grid button{font-size:10px}.submit-btn{padding:9px}.mobile-nav{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;bottom:0;left:0;right:0;background:#fffefa;border-top:1px solid var(--line);z-index:10;padding:8px 4px max(8px,env(safe-area-inset-bottom))}.mobile-nav button{border:0;background:none;color:#8a9b8e;font-size:21px;display:flex;align-items:center;flex-direction:column;gap:2px}.mobile-nav button.active{color:var(--green)}.mobile-nav span{font-size:10px}.result-hero{padding:22px}.result-score{font-size:31px}}@media(max-width:430px){.welcome-row h1{font-size:30px}.hero-art{right:-38%}.category-grid{grid-template-columns:1fr}.category-card{min-height:125px}.answer-grid{grid-template-columns:repeat(5,1fr)}}

/* 生词本 */
.wordbook-toolbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:16px}
.wordbook-toolbar .muted{font-size:12px;color:var(--muted);margin-right:auto}
.wordbook-toolbar .primary-btn,.wordbook-toolbar .secondary-btn{padding:9px 16px;font-size:12.5px}
.wordbook-grid{display:grid;gap:10px;grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}
.wordbook-row{position:relative;background:var(--paper);border:1px solid var(--line);border-radius:11px;padding:15px 17px}
.wb-head{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap;padding-right:22px}
.wb-head strong{font-size:15px;color:#2f4136}
.wb-phon{font-size:11.5px;color:#8b9c8d}
.wb-pos{font-size:10.5px;color:#6f8f73;background:#eef4ec;border-radius:4px;padding:2px 6px}
.wb-del{position:absolute;top:10px;right:10px;width:20px;height:20px;border:0;background:none;color:#c3cec1;font-size:16px;cursor:pointer;line-height:1;padding:0}
.wb-del:hover{color:#b06a52}
.wordbook-row p{margin:7px 0 0;font-size:13px;line-height:1.7;color:#41564a}
.wordbook-row small{display:block;margin-top:5px;font-size:11.5px;line-height:1.65;color:#8b9c8d}
.word-media{margin:10px 0 4px}
.word-pics{display:flex;gap:10px;flex-wrap:wrap}
.word-pic{max-width:170px;max-height:170px;border-radius:8px;border:1px solid #e3e0d2;background:#fff;object-fit:contain}
.word-audios{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.word-audio{cursor:pointer;border:1px solid #c9d3c4;background:#f3f6ef;color:#3c5142;font-size:12.5px;padding:6px 12px;border-radius:20px;transition:.15s}
.word-audio:hover{background:#e6efe0;border-color:#9fb89a}
.word-audio:active{transform:scale(.97)}

/* ===================== 查词弹窗 v2（专业词典版） ===================== */
#word-dialog{max-width:520px;width:calc(100% - 28px);max-height:86vh;overflow:hidden;display:none}
#word-dialog[open]{display:flex}
.word-dialog-inner{padding:0;display:flex;flex-direction:column;max-height:86vh;width:100%}
.word-head{display:flex;align-items:flex-start;gap:12px;padding:20px 22px 12px;border-bottom:1px solid #eeeee2;background:linear-gradient(180deg,#fbfaf3,#fffefa)}
.word-head-main{flex:1;min-width:0}
.word-head h3{margin:0;font-size:26px;line-height:1.15;letter-spacing:-.4px;color:#22402f;word-break:break-word}
.word-subline{margin:6px 0 0;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:#7b857e;line-height:1.5}
.wd-pos{background:#eef3e8;color:#3f6047;border-radius:5px;padding:2px 8px;font-size:11.5px;font-weight:600;letter-spacing:.2px}
.wd-phon{font-family:'DM Sans',Arial,sans-serif;color:#5c6f62;font-size:13px}
.wd-lemma{color:#8b9c8d}
.wd-lemma b{color:#3f6047}
#word-close{flex:none;background:none;border:0;font-size:26px;line-height:1;color:#a8b3a9;cursor:pointer;padding:0 4px;margin-top:-4px}
#word-close:hover{color:#284c3d}
.word-primary{margin:0;padding:12px 22px 14px;font-size:15.5px;line-height:1.65;color:#22352b;font-weight:600;background:#fffefa}
.word-scroll{flex:1;overflow-y:auto;overscroll-behavior:contain;padding:0 22px 4px;scrollbar-width:thin}
.word-scroll::-webkit-scrollbar{width:6px}
.word-scroll::-webkit-scrollbar-thumb{background:#d8dfd3;border-radius:3px}
/* 图片与发音 */
.wd-pics{display:flex;gap:10px;flex-wrap:wrap;padding:4px 0 12px}
.wd-pics img{max-width:100%;max-height:190px;border-radius:10px;border:1px solid #e6e4d6;background:#fff;object-fit:contain;box-shadow:0 2px 8px rgba(40,76,61,.06)}
.wd-audios{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:0 0 14px}
.wd-audio{cursor:pointer;border:1px solid #c9d3c4;background:#f3f6ef;color:#33513d;font-size:12.5px;font-weight:600;padding:7px 14px;border-radius:20px;transition:.15s}
.wd-audio:hover{background:#e4eede;border-color:#9fb89a}
.wd-audio:active{transform:scale(.97)}
.wd-audio-hint{font-size:11px;color:#a4b0a5}
/* 释义来源块 */
.wd-src{padding:14px 0;border-top:1px solid #f0efe4}
.wd-src:first-child{border-top:0;padding-top:6px}
.wd-src h4{margin:0 0 9px;font-size:11px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;color:#98a89b}
.wd-list{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:10px}
.wd-list li::marker{color:#b8c4b6;font-size:12px;font-weight:700}
.wd-def{font-size:14px;line-height:1.62;color:#22352b}
.wd-en{font-size:12.5px;line-height:1.6;color:#78877d;margin-top:2px}
.wd-en.wd-cn{color:#5f7367}
.wd-sub{font-size:11px;color:#8fa093;margin-bottom:1px;letter-spacing:.2px}
.wd-collos{display:flex;flex-wrap:wrap;gap:6px}
.wd-collos span{background:#f4f6ef;border:1px solid #e3e8dc;border-radius:6px;padding:5px 9px;font-size:12px;color:#4a5f51;line-height:1.4}
/* 例句 */
.wd-examples{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:11px}
.wd-examples li{padding-left:13px;border-left:2px solid #dfe6d8}
.wd-ex-en{font-size:13.5px;line-height:1.62;color:#2d4036}
.wd-ex-en em{font-style:normal;font-weight:700;color:#284c3d;background:linear-gradient(180deg,transparent 62%,#f2e2c6 62%);padding:0 1px}
.wd-ex-cn{font-size:12.5px;line-height:1.6;color:#7b857e;margin-top:3px}
.wd-empty{font-size:13px;line-height:1.7;color:#8b9c8d;padding:16px 0}
/* 底部操作 */
.word-actions{flex:none;display:flex;gap:9px;padding:13px 22px;border-top:1px solid #eeeee2;background:#fbfaf3}
.word-actions .secondary-btn{flex:1;justify-content:center;text-align:center}
@media(max-width:480px){
  #word-dialog{max-height:90vh}
  .word-dialog-inner{max-height:90vh}
  .word-head{padding:16px 16px 10px}
  .word-head h3{font-size:22px}
  .word-primary{padding:10px 16px 12px;font-size:14.5px}
  .word-scroll{padding:0 16px 4px}
  .word-actions{padding:11px 16px}
  .wd-pics img{max-height:150px}
}