:root {
  --bg:#e8e8e4;
  --bg-deep:#aeb8c1;
  --glass:rgba(255,255,255,.43);
  --glass-strong:rgba(255,255,255,.58);
  --glass-soft:rgba(255,255,255,.27);
  --line:rgba(255,255,255,.67);
  --line-soft:rgba(255,255,255,.48);
  --ink:#15171a;
  --muted:#59636c;
  --soft-muted:#7a858d;
  --red:#ee2d18;
  --red-deep:#b91c0c;
  --yellow:#ff9d00;
  --yellow-soft:#e77500;
  --cream:#fff7ea;
  --cyan:#00a9c4;
  --success:#187c45;
  --success-bg:rgba(43,155,91,.14);
  --danger:#c92e1a;
  --danger-bg:rgba(238,45,24,.13);
  --shadow:0 24px 70px rgba(30,35,38,.2);
  --radius:17px;
  --radius-lg:23px;
}
*{box-sizing:border-box}
html{color-scheme:light}
body{margin:0;min-width:900px;min-height:100vh;overflow-x:hidden;background:radial-gradient(circle at 8% 0,rgba(238,45,24,.34),transparent 27%),radial-gradient(circle at 96% 92%,rgba(255,157,0,.25),transparent 34%),linear-gradient(135deg,var(--bg),var(--bg-deep));color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","SF Pro Display","PingFang SC","Microsoft YaHei",sans-serif;font-size:14px;letter-spacing:-.01em;-webkit-font-smoothing:antialiased;background-attachment:fixed}
body:before,body:after{position:fixed;z-index:-1;content:"";pointer-events:none}
body:before{inset:0;background:repeating-linear-gradient(90deg,rgba(0,169,196,.055) 0 1px,transparent 1px 58px),repeating-linear-gradient(0deg,rgba(0,169,196,.045) 0 1px,transparent 1px 58px);mask-image:linear-gradient(to bottom,#000,transparent 88%)}body:after{right:-130px;bottom:-160px;width:450px;height:450px;border:1px solid rgba(238,45,24,.2);border-radius:44% 56% 47% 53%;box-shadow:0 0 0 28px rgba(238,45,24,.035),0 0 0 56px rgba(255,157,0,.025);transform:rotate(30deg)}
button,input,select,textarea{font:inherit}button{cursor:pointer}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(255,200,90,.25);outline-offset:2px}
.hidden{display:none!important}.muted{color:var(--muted);font-size:13px;line-height:1.75}.eyebrow{color:var(--soft-muted);font-size:10px;font-weight:700;letter-spacing:.17em;text-transform:uppercase}
.primary,.secondary{min-height:41px;padding:10px 17px;border:0;border-radius:13px;font-size:13px;font-weight:700;transition:.16s ease}
.primary{background:linear-gradient(135deg,var(--red),#ff701c);color:#fff;box-shadow:0 11px 28px rgba(238,45,24,.24)}.primary:hover{background:linear-gradient(135deg,#ff3b23,#ff8c1a);transform:translateY(-1px)}
.secondary{border:1px solid var(--line-soft);background:rgba(255,255,255,.09);color:var(--yellow-soft)}.secondary:hover{background:rgba(255,255,255,.14)}button:disabled{opacity:.38;cursor:not-allowed;transform:none!important}

/* 登录 */
.auth-screen{min-height:100vh;display:grid;grid-template-columns:minmax(500px,1fr) 430px;gap:100px;align-items:center;padding:8vh 12vw}
body:not(.logged-in) .app-shell{display:none}.logged-in .auth-screen{display:none}.auth-copy{max-width:680px}.auth-copy .brand-mark{margin-bottom:52px}
.brand-mark{display:grid;width:43px;height:43px;place-items:center;border-radius:14px;background:rgba(255,246,226,.94);box-shadow:0 12px 30px rgba(63,8,2,.25);font-size:22px}
.auth-copy h1{margin:18px 0 20px;font-size:clamp(49px,4.7vw,72px);line-height:1.13;font-weight:650;letter-spacing:-.067em}.auth-copy>p{color:var(--muted);font-size:15px}.auth-points{display:flex;gap:24px;margin-top:35px;color:var(--yellow-soft);font-size:13px;font-weight:650}
.auth-card{width:430px;padding:40px;border:1px solid var(--line);border-radius:31px;background:var(--glass);box-shadow:var(--shadow);backdrop-filter:blur(30px) saturate(140%)}.auth-card h2{margin:13px 0 7px;font-size:29px;font-weight:650;letter-spacing:-.045em}.auth-card label{display:block;margin-top:18px;color:var(--muted);font-size:12px;font-weight:650}.auth-card input{display:block;width:100%;margin-top:8px;padding:14px 15px;border:1px solid var(--line);border-radius:13px;background:rgba(255,255,255,.08);color:var(--ink)}.auth-card input::placeholder{color:var(--soft-muted)}.auth-status{min-height:18px;margin:11px 2px -4px;color:var(--danger);font-size:11px;font-weight:650;line-height:1.5}.auth-submit{width:100%;margin-top:17px}.auth-card>small{display:block;margin-top:14px;color:var(--soft-muted);text-align:center;font-size:11px;line-height:1.55}

/* 框架 */
.app-shell{min-height:100vh;display:flex}.sidebar{position:sticky;top:20px;width:98px;height:calc(100vh - 40px);flex:0 0 98px;margin:20px 0 20px 20px;padding:18px 11px;border:1px solid var(--line);border-radius:26px;background:var(--glass);box-shadow:0 20px 50px rgba(27,3,0,.24);backdrop-filter:blur(30px) saturate(145%)}
.brand{display:grid;justify-items:center;gap:8px;margin-bottom:25px;text-align:center}.brand b{font-size:11px;font-weight:650;white-space:nowrap}.sidebar nav{display:grid;gap:5px}.nav-item{position:relative;width:100%;min-height:59px;padding:8px 3px 7px;border:0;border-radius:16px;background:transparent;color:var(--muted);text-align:center;font-size:10px;font-weight:600;transition:.17s ease}.nav-item:hover{background:rgba(255,255,255,.08);color:var(--ink)}.nav-item.active{background:rgba(255,255,255,.15);color:#fff}.nav-item>span{display:block;margin-bottom:5px;color:var(--yellow-soft);font-size:17px;font-weight:750}.nav-item em{position:absolute;top:2px;right:4px;display:grid;min-width:18px;height:18px;padding:0 5px;place-items:center;border-radius:9px;background:var(--yellow-soft);color:#79251a;font-size:9px;font-style:normal;font-weight:750}
.nav-directory{position:relative}.nav-directory-toggle i{position:absolute;right:8px;bottom:8px;color:var(--soft-muted);font-size:10px;font-style:normal;transition:transform .2s ease}.nav-directory.open .nav-directory-toggle i{transform:rotate(180deg)}.nav-directory-menu{display:grid;max-height:0;gap:4px;margin:0;overflow:hidden;opacity:0;transition:max-height .28s ease,margin .28s ease,opacity .2s ease}.nav-directory.open .nav-directory-menu{max-height:210px;margin:5px 0 8px;overflow-y:auto;opacity:1}.nav-subitem{display:flex;width:100%;min-height:37px;padding:5px;align-items:center;gap:4px;border:0;border-radius:11px;background:rgba(255,255,255,.025);color:var(--muted);text-align:left;transition:.16s ease}.nav-subitem:hover{background:rgba(255,255,255,.08);color:var(--ink)}.nav-subitem.active{background:rgba(255,200,90,.13);color:#fff}.nav-subitem span{display:grid;width:19px;height:19px;place-items:center;flex:0 0 auto;border-radius:6px;background:rgba(255,210,115,.1);color:var(--yellow-soft);font-size:8px;font-weight:750}.nav-subitem b{white-space:nowrap;font-size:8px;font-weight:650;line-height:1}.nav-directory-menu::-webkit-scrollbar{width:4px}.nav-directory-menu::-webkit-scrollbar-thumb{border:0;background:rgba(255,230,180,.18)}
.main{width:calc(100% - 118px);padding:34px 50px 80px}.main>.view,.main>.topbar{width:min(1210px,100%);margin-left:auto;margin-right:auto}.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:34px}.topbar h1{margin:8px 0 0;font-size:31px;line-height:1.1;font-weight:650;letter-spacing:-.055em}.user-chip{display:flex;align-items:center;gap:9px;padding:5px 8px 5px 5px;border:1px solid var(--line-soft);border-radius:22px;background:var(--glass-soft);font-size:12px;font-weight:650;backdrop-filter:blur(17px)}.avatar{display:grid;width:34px;height:34px;place-items:center;border-radius:50%;background:rgba(255,255,255,.14);color:var(--yellow-soft);font-weight:700}.user-chip button{border:0;background:none;color:var(--muted)}

/* 首页 */
.hero{position:relative;display:flex;min-height:245px;padding:43px 45px;align-items:center;justify-content:space-between;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--glass);box-shadow:var(--shadow);backdrop-filter:blur(30px) saturate(140%)}.hero:after{position:absolute;right:-34px;bottom:-54px;content:"火";color:rgba(255,225,158,.065);font-size:245px;line-height:1;font-weight:700;transform:rotate(-7deg)}.hero>div:first-child{position:relative;z-index:1}.hero-kicker{color:var(--yellow);font-size:10px;font-weight:700;letter-spacing:.18em}.hero h2{max-width:760px;margin:47px 0 13px;font-size:40px;line-height:1.17;font-weight:650;letter-spacing:-.062em}.hero p{margin:0;color:var(--muted);font-size:14px}.hero-dragon{position:relative;z-index:1;margin-right:35px;color:rgba(255,225,158,.25);font-size:14px;font-weight:750;letter-spacing:.35em;writing-mode:vertical-rl}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px;margin:14px 0 47px}.stat-card{min-height:143px;padding:21px 22px;border:1px solid var(--line-soft);border-radius:var(--radius);background:var(--glass-soft);backdrop-filter:blur(20px)}.stat-card span{display:block;color:var(--soft-muted);font-size:10px;font-weight:700;letter-spacing:.1em}.stat-card strong{display:block;margin:14px 0 7px;font-size:37px;line-height:1;font-weight:650;letter-spacing:-.055em}.stat-card small{color:var(--muted);font-size:11px}.section-head{display:flex;align-items:end;justify-content:space-between;margin:30px 0 14px}.section-head h3{margin:8px 0 0;font-size:24px;font-weight:650;letter-spacing:-.04em}.mode-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}.mode-card{display:flex;min-height:155px;padding:20px;align-items:center;gap:15px;border:1px solid var(--line-soft);border-radius:var(--radius);background:var(--glass-soft);color:var(--ink);text-align:left;backdrop-filter:blur(20px);transition:.18s ease}.mode-card:hover{border-color:rgba(255,218,139,.27);background:rgba(255,255,255,.1);transform:translateY(-2px)}.mode-icon{display:grid;width:49px;height:49px;place-items:center;flex:0 0 auto;border-radius:15px;background:rgba(255,210,115,.13);color:var(--yellow-soft);font-size:17px;font-weight:750}.mode-card div{flex:1}.mode-card small{color:var(--soft-muted);font-size:9px;letter-spacing:.14em}.mode-card h3{margin:7px 0 6px;font-size:19px;font-weight:650}.mode-card p{margin:0;color:var(--muted);font-size:11px;line-height:1.55}.mode-card>b{color:var(--yellow);font-size:18px}.study-tip{display:flex;align-items:center;gap:13px;margin-top:14px;padding:15px 17px;border:1px solid var(--line-soft);border-radius:15px;background:rgba(255,197,82,.07)}.study-tip span{padding:5px 9px;border-radius:8px;background:rgba(255,200,90,.12);color:var(--yellow-soft);font-size:10px;font-weight:700}.study-tip p{margin:0;color:var(--muted);font-size:12px}

/* 题组列表 */
.category-head{margin-top:8px}.set-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.set-card{position:relative;min-height:210px;padding:25px;overflow:hidden;border:1px solid var(--line-soft);border-radius:22px;background:var(--glass-soft);backdrop-filter:blur(22px)}.set-card:after{position:absolute;right:-10px;bottom:-36px;color:rgba(255,223,158,.055);font-size:130px;font-weight:750;content:attr(data-mark)}.set-card>*{position:relative;z-index:1}.set-card-top{display:flex;align-items:center;justify-content:space-between}.set-card-top span{color:var(--yellow);font-size:9px;font-weight:700;letter-spacing:.14em}.difficulty{padding:5px 8px;border-radius:8px;background:rgba(255,255,255,.09)!important;color:var(--muted)!important;letter-spacing:0!important}.set-card h3{margin:28px 0 9px;font-size:23px;font-weight:650;letter-spacing:-.04em}.set-card p{margin:0 0 24px;color:var(--muted);font-size:12px}.set-card button{position:absolute;right:22px;bottom:20px}

/* 做题 */
.quiz-top{display:flex;align-items:center;gap:22px;margin-bottom:18px;color:var(--muted);font-size:12px}.quiz-top #quizProgress{margin-left:auto}.back-button{border:0;background:none;color:var(--yellow-soft);font-weight:650}.quiz-layout{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(390px,.85fr);gap:16px;align-items:start}.passage-card,.question-panel{border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--glass);box-shadow:var(--shadow);backdrop-filter:blur(30px) saturate(140%)}.passage-card{position:sticky;top:25px;max-height:calc(100vh - 90px);padding:34px 37px;overflow:auto}.passage-head{padding-bottom:22px;border-bottom:1px solid var(--line-soft)}.passage-head h2{margin:10px 0 7px;font-size:26px;font-weight:650;letter-spacing:-.045em}.passage-head>span:last-child{color:var(--muted);font-size:11px}.passage-text{padding-top:22px}.passage-text p{margin:0 0 18px;color:rgba(255,249,241,.9);font-family:Georgia,"Times New Roman",serif;font-size:17px;line-height:1.9;letter-spacing:.005em}.word{border-radius:4px;cursor:pointer;transition:.12s ease}.word:hover{background:rgba(255,202,91,.2);color:#fff3c7}.blank-mark{display:inline-grid;min-width:32px;height:24px;margin:0 3px;place-items:center;border-radius:7px;background:rgba(255,200,90,.13);color:var(--yellow-soft);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC",sans-serif;font-size:12px;font-weight:700}.shared-options{display:grid;gap:7px;margin-top:24px;padding-top:22px;border-top:1px solid var(--line-soft)}.shared-option{display:flex;gap:10px;padding:10px 12px;border-radius:11px;background:rgba(255,255,255,.055);font-family:Georgia,"Times New Roman",serif;font-size:14px;line-height:1.5}.shared-option b{color:var(--yellow);font-family:-apple-system,BlinkMacSystemFont,sans-serif}.question-panel{padding:25px;max-height:calc(100vh - 90px);overflow:auto}.subquestion{padding:0 0 23px;margin-bottom:23px;border-bottom:1px solid var(--line-soft)}.subquestion:last-of-type{margin-bottom:0}.subquestion h3{margin:0 0 13px;font-size:15px;font-weight:650;line-height:1.55}.question-options{display:grid;gap:8px}.question-option{display:flex;gap:10px;width:100%;padding:11px 12px;border:1px solid var(--line-soft);border-radius:12px;background:rgba(255,255,255,.05);color:var(--ink);text-align:left;font-family:Georgia,"Times New Roman",serif;font-size:14px;line-height:1.5;transition:.15s ease}.question-option:hover{background:rgba(255,255,255,.1)}.question-option.selected{border-color:rgba(255,211,122,.52);background:rgba(255,200,90,.13)}.question-option.correct{border-color:rgba(153,225,174,.4);background:var(--success-bg)}.question-option.incorrect{border-color:rgba(255,170,148,.4);background:var(--danger-bg)}.question-option b{flex:0 0 auto;color:var(--yellow);font-family:-apple-system,BlinkMacSystemFont,sans-serif}.sub-explanation{margin:10px 2px 0;color:var(--muted);font-size:12px;line-height:1.65}.quiz-feedback{margin:15px 0;color:var(--muted);font-size:13px;line-height:1.7}.quiz-feedback.good{color:var(--success)}.quiz-feedback.bad{color:var(--danger)}.submit-quiz{width:100%}

/* 错题 */
.wrong-toolbar,.word-toolbar,.manual-word{display:flex;align-items:center;gap:12px;padding:16px 17px;border:1px solid var(--line-soft);border-radius:17px;background:var(--glass-soft);backdrop-filter:blur(20px)}.wrong-toolbar{justify-content:space-between;margin-bottom:12px}.wrong-toolbar label{color:var(--muted);font-size:11px;font-weight:650}.wrong-toolbar select{margin-left:8px;padding:9px 11px;border:1px solid var(--line);border-radius:10px;background:rgba(255,255,255,.08);color:var(--ink)}select option{background:#42140f}.wrong-toolbar span{color:var(--muted);font-size:12px}.wrong-list{display:grid;gap:10px}.wrong-item{display:flex;align-items:center;gap:15px;padding:18px;border:1px solid var(--line-soft);border-radius:17px;background:var(--glass-soft)}.wrong-type{display:grid;width:45px;height:45px;place-items:center;flex:0 0 auto;border-radius:14px;background:rgba(255,200,90,.12);color:var(--yellow-soft);font-weight:750}.wrong-copy{flex:1}.wrong-copy b{display:block;margin-bottom:6px;font-size:15px}.wrong-copy p{margin:3px 0;color:var(--muted);font-size:11px}.empty-state{padding:38px;border:1px solid var(--line-soft);border-radius:19px;background:var(--glass-soft);text-align:center}.empty-state b{font-size:17px}.empty-state p{color:var(--muted)}

/* 单词本 */
.word-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:14px}.word-stats>div{padding:18px 20px;border:1px solid var(--line-soft);border-radius:17px;background:var(--glass-soft)}.word-stats small,.word-stats strong{display:block}.word-stats small{color:var(--soft-muted);font-size:10px;letter-spacing:.1em}.word-stats strong{margin-top:9px;font-size:30px;font-weight:650}.word-toolbar{margin-bottom:10px}.segmented{display:flex;padding:3px;border-radius:12px;background:rgba(0,0,0,.13)}.segmented button{padding:8px 13px;border:0;border-radius:9px;background:transparent;color:var(--muted);font-size:12px;font-weight:650}.segmented button.active{background:rgba(255,255,255,.13);color:var(--ink)}.word-search{display:flex;min-width:300px;flex:1;align-items:center;gap:8px;padding:0 12px;border:1px solid var(--line-soft);border-radius:11px;background:rgba(255,255,255,.055)}.word-search span{color:var(--yellow);font-size:18px}.word-search input{width:100%;height:40px;border:0;outline:0;background:transparent;color:var(--ink)}.word-search input::placeholder,.manual-word input::placeholder{color:var(--soft-muted)}.manual-word{margin-bottom:7px}.manual-word input{height:41px;padding:0 12px;border:1px solid var(--line-soft);border-radius:11px;background:rgba(255,255,255,.055);color:var(--ink)}#manualWord{width:230px}#manualMeaning{flex:1}.word-list-status{margin:10px 2px;color:var(--muted);font-size:11px}.word-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.word-item{display:flex;min-height:96px;align-items:center;gap:13px;padding:16px 17px;border:1px solid var(--line-soft);border-radius:16px;background:var(--glass-soft)}.word-main{flex:1;min-width:0}.word-main b{font-family:Georgia,"Times New Roman",serif;font-size:18px}.word-main .phonetic{display:inline;margin-left:8px;color:var(--yellow-soft);font-size:11px}.word-main p{margin:6px 0 0;color:var(--muted);font-size:11px;line-height:1.5}.word-actions{display:flex;gap:6px}.word-actions button{min-height:34px;padding:7px 9px;border:1px solid var(--line-soft);border-radius:9px;background:rgba(255,255,255,.065);color:var(--yellow-soft);font-size:10px}.word-actions button.mastered{background:rgba(91,181,119,.16);color:var(--success)}

/* 查词弹窗 */
dialog{width:460px;padding:35px;border:1px solid var(--line);border-radius:27px;background:rgba(76,21,14,.94);box-shadow:0 32px 95px rgba(23,1,0,.5);color:var(--ink);backdrop-filter:blur(32px) saturate(145%)}dialog::backdrop{background:rgba(22,2,0,.53);backdrop-filter:blur(7px)}.dialog-close{position:absolute;top:16px;right:17px;display:grid;width:31px;height:31px;padding:0;place-items:center;border:0;border-radius:50%;background:rgba(255,255,255,.1);color:var(--muted);font-size:19px}.word-dialog h2{margin:13px 0 4px;font-family:Georgia,"Times New Roman",serif;font-size:34px;font-weight:650;letter-spacing:-.04em}.phonetic{color:var(--yellow-soft)}.lookup-state{margin:18px 0;padding:12px 13px;border-radius:11px;background:rgba(255,200,90,.08);color:var(--muted);font-size:12px}.word-dialog label{display:grid;gap:8px;color:var(--muted);font-size:11px;font-weight:650}.word-dialog textarea{width:100%;resize:vertical;padding:12px;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.07);color:var(--ink);line-height:1.65}.lookup-example{color:var(--muted);font-family:Georgia,"Times New Roman",serif;font-size:12px;font-style:italic;line-height:1.6}.dialog-actions{display:flex;justify-content:flex-end;gap:9px;margin-top:23px}.toast{position:fixed;right:30px;bottom:28px;z-index:20;padding:12px 16px;border:1px solid rgba(255,241,211,.3);border-radius:13px;background:rgba(255,237,198,.94);box-shadow:var(--shadow);color:#6b2117;font-size:12px;font-weight:700;opacity:0;transform:translateY(8px);transition:.22s ease}.toast.show{opacity:1;transform:none}

*{scrollbar-width:thin;scrollbar-color:rgba(255,230,180,.22) transparent}*::-webkit-scrollbar{width:10px;height:10px}*::-webkit-scrollbar-thumb{border:3px solid transparent;border-radius:10px;background:rgba(255,230,180,.2);background-clip:padding-box}

.manual-word input{min-width:0}

/* 赤霄银翼：钛银玻璃 × 赤焰能量 */
.eyebrow{color:var(--soft-muted)}
.secondary{border-color:rgba(255,255,255,.6);background:rgba(255,255,255,.28);color:var(--red-deep);box-shadow:inset 0 1px 0 rgba(255,255,255,.55)}
.secondary:hover{background:rgba(255,255,255,.48)}
.brand-mark{border:1px solid rgba(238,45,24,.28);background:linear-gradient(145deg,rgba(255,255,255,.78),rgba(255,198,150,.58));box-shadow:0 0 22px rgba(238,45,24,.22)}
.auth-screen:before{position:absolute;top:9%;left:8%;width:34px;height:2px;background:linear-gradient(90deg,var(--red),var(--yellow));box-shadow:0 0 12px rgba(238,45,24,.42);content:""}
.auth-card,.sidebar,.hero,.passage-card,.question-panel,dialog{box-shadow:inset 0 1px 0 rgba(255,255,255,.72),var(--shadow)}
.auth-card input,.word-dialog textarea,.wrong-toolbar select,.manual-word input{border-color:rgba(255,255,255,.62);background:rgba(255,255,255,.3);color:var(--ink);box-shadow:inset 0 1px 0 rgba(255,255,255,.45)}
.sidebar{box-shadow:inset 0 1px 0 rgba(255,255,255,.72),0 20px 50px rgba(30,35,38,.19)}
.nav-item:hover,.nav-subitem:hover{background:rgba(255,255,255,.31)}
.nav-item.active{border:1px solid rgba(238,45,24,.22);background:linear-gradient(135deg,rgba(238,45,24,.15),rgba(255,157,0,.09));box-shadow:inset 3px 0 0 var(--red),0 0 17px rgba(238,45,24,.1);color:var(--ink)}
.nav-item>span,.nav-subitem span{color:var(--yellow)}
.nav-item em{background:linear-gradient(135deg,var(--red),#ff6d1d);color:#fff}
.nav-subitem{background:rgba(255,255,255,.14)}
.nav-subitem.active{background:linear-gradient(135deg,rgba(238,45,24,.16),rgba(255,157,0,.08));box-shadow:inset 2px 0 0 var(--red);color:var(--ink)}
.nav-subitem span{background:rgba(255,157,0,.14)}
.user-chip{border-color:rgba(255,255,255,.62);background:rgba(255,255,255,.28);box-shadow:inset 0 1px 0 rgba(255,255,255,.58)}
.avatar{border-radius:10px;background:linear-gradient(135deg,var(--red),var(--yellow));color:#250500;box-shadow:0 0 15px rgba(238,45,24,.2)}
.topbar .eyebrow{display:flex;align-items:center;gap:8px}.topbar .eyebrow:before{width:29px;height:2px;background:linear-gradient(90deg,var(--red),var(--yellow));box-shadow:0 0 9px rgba(238,45,24,.32);content:""}
.hero{border-color:rgba(255,255,255,.72);background:linear-gradient(135deg,rgba(255,255,255,.52),rgba(255,255,255,.28))}
.hero:before{position:absolute;left:45px;right:45px;bottom:19px;height:2px;background:linear-gradient(90deg,var(--red) 0 36%,var(--yellow) 58%,var(--cyan) 76%,rgba(255,255,255,.18) 76%);box-shadow:0 0 10px rgba(238,45,24,.18);content:""}
.hero:after{right:25px;bottom:-61px;content:"龍";color:rgba(238,45,24,.09);font-family:serif;font-size:228px;transform:rotate(-7deg)}
.hero-kicker{color:var(--cyan);text-shadow:0 0 11px rgba(0,169,196,.25)}
.hero h2{max-width:820px}.hero h2::first-letter{color:var(--red)}
.hero-dragon{color:rgba(238,45,24,.48)}
.stat-card,.mode-card,.set-card,.wrong-toolbar,.word-toolbar,.manual-word,.wrong-item,.empty-state,.word-stats>div,.word-item{position:relative;border-color:rgba(255,255,255,.55);background:rgba(255,255,255,.23);box-shadow:inset 0 1px 0 rgba(255,255,255,.45);backdrop-filter:blur(24px) saturate(135%)}
.stat-card:before,.set-card:before,.word-stats>div:before{position:absolute;top:0;right:18px;width:38px;height:2px;background:var(--red);box-shadow:0 0 9px rgba(238,45,24,.32);content:""}
.mode-card:hover{border-color:rgba(238,45,24,.28);background:rgba(255,255,255,.4);box-shadow:0 13px 30px rgba(30,35,38,.1)}
.mode-icon{border:1px solid rgba(238,45,24,.2);border-radius:11px;background:linear-gradient(135deg,rgba(238,45,24,.14),rgba(255,157,0,.17));color:var(--red);box-shadow:inset 0 1px 0 rgba(255,255,255,.58)}
.mode-card>b,.set-card-top span,.word-search span{color:var(--red)}
.study-tip{border-color:rgba(255,255,255,.55);background:linear-gradient(90deg,rgba(238,45,24,.08),rgba(0,169,196,.06))}.study-tip span{background:rgba(238,45,24,.12);color:var(--red-deep)}
.set-card:after{color:rgba(238,45,24,.075)}
.difficulty{background:rgba(255,255,255,.34)!important}
.back-button{color:var(--red-deep)}
.passage-card,.question-panel{background:rgba(255,255,255,.39)}
.passage-text p{color:#202328}
.word:hover{background:rgba(255,157,0,.18);color:var(--red-deep)}
.blank-mark{background:rgba(238,45,24,.11);color:var(--red-deep)}
.shared-option,.question-option{border-color:rgba(255,255,255,.55);background:rgba(255,255,255,.25)}
.question-option:hover{background:rgba(255,255,255,.48)}
.question-option.selected{border-color:rgba(238,45,24,.38);background:linear-gradient(90deg,rgba(238,45,24,.13),rgba(255,157,0,.1))}
.shared-option b,.question-option b{color:var(--red)}
.wrong-toolbar select option,select option{background:#eef0f1;color:var(--ink)}
.wrong-type{border:1px solid rgba(238,45,24,.18);border-radius:11px;background:linear-gradient(135deg,rgba(238,45,24,.14),rgba(255,157,0,.15));color:var(--red)}
.segmented{background:rgba(44,51,57,.11)}.segmented button.active{background:rgba(255,255,255,.58);box-shadow:0 3px 10px rgba(30,35,38,.09);color:var(--ink)}
.word-search,.manual-word input{background:rgba(255,255,255,.25)}
.word-main .phonetic,.phonetic,.word-actions button{color:var(--red-deep)}
.word-actions button{background:rgba(255,255,255,.31)}
dialog{background:rgba(230,234,237,.88);box-shadow:inset 0 1px 0 rgba(255,255,255,.78),0 32px 95px rgba(27,31,34,.34)}dialog::backdrop{background:rgba(46,54,61,.36)}
.dialog-close{background:rgba(255,255,255,.38)}
.lookup-state{background:linear-gradient(90deg,rgba(238,45,24,.09),rgba(0,169,196,.07))}
.toast{border-color:rgba(255,255,255,.7);background:rgba(247,249,250,.93);color:var(--red-deep)}
*{scrollbar-color:rgba(238,45,24,.24) transparent}*::-webkit-scrollbar-thumb{background:rgba(238,45,24,.2);background-clip:padding-box}

/* 真题题库 */
.bank-launch{display:flex;width:100%;min-height:104px;margin-top:13px;padding:18px 20px;align-items:center;gap:16px;border:1px solid rgba(255,255,255,.55);border-radius:var(--radius);background:rgba(255,255,255,.23);box-shadow:inset 0 1px 0 rgba(255,255,255,.45);color:var(--ink);text-align:left;backdrop-filter:blur(24px) saturate(135%);transition:.18s ease}.bank-launch:hover{border-color:rgba(238,45,24,.28);background:rgba(255,255,255,.4);transform:translateY(-2px)}.bank-launch>div{flex:1}.bank-launch small{color:var(--soft-muted);font-size:9px;letter-spacing:.14em}.bank-launch h3{margin:5px 0 4px;font-size:18px}.bank-launch p{margin:0;color:var(--muted);font-size:11px}.bank-launch>strong{color:var(--muted);font-size:12px;font-weight:600}.bank-launch>strong b{color:var(--red);font-size:19px}.bank-launch>i{color:var(--red);font-size:18px;font-style:normal}
.bank-head{margin-top:8px}.bank-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:13px}.bank-summary>div{padding:17px 20px;border:1px solid var(--line-soft);border-radius:16px;background:var(--glass-soft);box-shadow:inset 0 1px 0 rgba(255,255,255,.48);backdrop-filter:blur(20px)}.bank-summary small,.bank-summary strong{display:block}.bank-summary small{color:var(--soft-muted);font-size:10px;letter-spacing:.1em}.bank-summary strong{margin-top:7px;font-size:27px;font-weight:650}.bank-toolbar{display:grid;grid-template-columns:minmax(300px,1fr) repeat(3,max-content) max-content;gap:9px;align-items:end;padding:15px;border:1px solid var(--line-soft);border-radius:17px;background:var(--glass-soft);box-shadow:inset 0 1px 0 rgba(255,255,255,.48);backdrop-filter:blur(22px)}.bank-toolbar>label:not(.bank-search){display:grid;gap:6px;color:var(--muted);font-size:10px;font-weight:650}.bank-toolbar select{min-width:116px;height:40px;padding:0 30px 0 11px;border:1px solid rgba(255,255,255,.62);border-radius:11px;background:rgba(255,255,255,.3);color:var(--ink)}.bank-search{display:flex;height:40px;align-items:center;gap:8px;padding:0 12px;border:1px solid rgba(255,255,255,.62);border-radius:11px;background:rgba(255,255,255,.3)}.bank-search span{color:var(--red);font-size:18px}.bank-search input{width:100%;border:0;outline:0;background:transparent;color:var(--ink)}.bank-result-head{display:flex;justify-content:space-between;margin:13px 2px;color:var(--muted);font-size:11px}.bank-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.bank-card{position:relative;min-height:244px;padding:21px 22px 66px;border:1px solid rgba(255,255,255,.58);border-radius:19px;background:rgba(255,255,255,.25);box-shadow:inset 0 1px 0 rgba(255,255,255,.5);backdrop-filter:blur(24px) saturate(135%)}.bank-card:before{position:absolute;top:0;right:20px;width:40px;height:2px;background:linear-gradient(90deg,var(--red),var(--yellow));box-shadow:0 0 9px rgba(238,45,24,.3);content:""}.bank-card-top{display:flex;justify-content:space-between;color:var(--soft-muted);font-size:10px}.bank-card h3{margin:20px 0 9px;font-family:Georgia,"Times New Roman",serif;font-size:20px;line-height:1.35;font-weight:650}.bank-card>p{display:-webkit-box;margin:0;color:var(--muted);overflow:hidden;font-size:11px;line-height:1.65;-webkit-box-orient:vertical;-webkit-line-clamp:2}.tag-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}.tag-row span{padding:5px 8px;border:1px solid rgba(238,45,24,.13);border-radius:8px;background:rgba(238,45,24,.075);color:var(--red-deep);font-size:10px;font-weight:650}.bank-card>button{position:absolute;right:20px;bottom:18px}.bank-load-more{display:block;margin:17px auto 0}.bank-empty{grid-column:1/-1}
.bank-type-tabs{display:grid;grid-template-columns:repeat(5,1fr);gap:9px;margin-bottom:13px;padding:7px;border:1px solid var(--line-soft);border-radius:17px;background:rgba(255,255,255,.17);box-shadow:inset 0 1px 0 rgba(255,255,255,.45);backdrop-filter:blur(22px) saturate(135%)}.bank-type-tabs button{display:flex;min-height:48px;padding:0 14px;align-items:center;justify-content:space-between;border:1px solid transparent;border-radius:12px;background:transparent;color:var(--muted);font-size:12px;font-weight:650;transition:.16s ease}.bank-type-tabs button:hover{background:rgba(255,255,255,.25);color:var(--ink)}.bank-type-tabs button.active{border-color:rgba(238,45,24,.2);background:linear-gradient(135deg,rgba(255,255,255,.62),rgba(255,228,172,.3));box-shadow:0 8px 24px rgba(170,36,17,.08),inset 0 1px 0 rgba(255,255,255,.75);color:var(--red-deep)}.bank-type-tabs b{display:grid;min-width:28px;height:26px;padding:0 7px;place-items:center;border-radius:9px;background:rgba(238,45,24,.08);color:var(--red);font-size:11px}.bank-card-top>span:first-child{display:flex;align-items:center;gap:7px}.bank-type-chip{padding:4px 7px;border-radius:7px;background:rgba(238,45,24,.09);color:var(--red-deep);font-size:9px;white-space:nowrap}

.fill-answer{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:11px;padding:11px 12px;border:1px solid rgba(255,255,255,.55);border-radius:12px;background:rgba(255,255,255,.25)}.fill-answer span{color:var(--red);font-size:11px;font-weight:750}.fill-answer input{height:38px;padding:0 11px;border:1px solid rgba(255,255,255,.7);border-radius:9px;outline:0;background:rgba(255,255,255,.5);color:var(--ink);font-family:Georgia,"Times New Roman",serif;font-size:15px}.fill-answer input:focus{border-color:rgba(238,45,24,.38);box-shadow:0 0 0 3px rgba(238,45,24,.08)}.fill-answer input.correct{border-color:rgba(48,150,86,.45);background:rgba(87,190,116,.13)}.fill-answer input.incorrect{border-color:rgba(213,64,40,.48);background:rgba(238,45,24,.1)}
.quiz-meta{padding:5px 8px;border-radius:8px;background:rgba(238,45,24,.08);color:var(--red-deep);font-size:10px}.passage-table-wrap{margin:2px 0 20px;overflow-x:auto;border:1px solid rgba(89,99,108,.2);border-radius:12px}.passage-table{width:100%;border-collapse:collapse;background:rgba(255,255,255,.3);font-family:Georgia,"Times New Roman",serif;font-size:13px;line-height:1.45}.passage-table td{min-width:110px;padding:10px 11px;border-right:1px solid rgba(89,99,108,.16);border-bottom:1px solid rgba(89,99,108,.16);vertical-align:middle}.passage-table tr:last-child td{border-bottom:0}.passage-table td:last-child{border-right:0}.passage-figure{margin:8px 0 22px}.passage-figure img{display:block;width:100%;height:auto;border:1px solid rgba(89,99,108,.16);border-radius:11px;background:#fff}.passage-figure figcaption{margin-top:6px;color:var(--soft-muted);text-align:center;font-size:10px}

/* 听力训练 */
.mode-grid{grid-template-columns:repeat(5,1fr)}
.mode-card{padding:18px;gap:12px}
.bank-type-tabs{grid-template-columns:repeat(6,1fr)}
.listening-player{margin-top:22px;padding:17px 18px;border:1px solid rgba(238,45,24,.18);border-radius:16px;background:linear-gradient(135deg,rgba(255,255,255,.48),rgba(255,183,91,.12));box-shadow:inset 0 1px 0 rgba(255,255,255,.65)}
.listening-player>div{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.listening-player b{font-size:13px}.listening-player span,.listening-player small{color:var(--muted);font-size:10px}.listening-player audio{display:block;width:100%;height:44px;accent-color:var(--red)}.listening-player>small{display:block;margin-top:9px}
.listening-transcript{margin-top:16px;border:1px solid rgba(89,99,108,.17);border-radius:16px;background:rgba(255,255,255,.2);overflow:hidden}.listening-transcript summary{display:flex;padding:15px 17px;align-items:center;justify-content:space-between;cursor:pointer;list-style:none;color:var(--red-deep);font-size:12px;font-weight:700}.listening-transcript summary::-webkit-details-marker{display:none}.listening-transcript summary:after{content:"展开";color:var(--soft-muted);font-size:10px;font-weight:600}.listening-transcript[open] summary:after{content:"收起"}.listening-transcript summary small{color:var(--muted);font-size:10px;font-weight:500}.listening-transcript .passage-text{padding:19px 20px 6px;border-top:1px solid rgba(89,99,108,.13)}
.transcript-segment{margin-bottom:24px}.transcript-segment:last-child{margin-bottom:10px}.transcript-segment-head{display:flex;align-items:center;gap:8px;margin-bottom:9px}.transcript-segment-head b{font-size:13px}.transcript-segment-head span{padding:4px 7px;border-radius:7px;background:rgba(238,45,24,.08);color:var(--red-deep);font-size:9px;font-weight:650}.transcript-segment-head small{margin-left:auto;color:var(--soft-muted);font-size:9px}.transcript-segment p{margin:0 0 8px;font-size:15px;line-height:1.75}

@media(max-width:1180px){
  .main{padding:30px 28px 70px}
  .quiz-layout{grid-template-columns:1fr}
  .passage-card{position:relative;top:auto;max-height:none}
  .question-panel{max-height:none}
  .set-list{grid-template-columns:1fr}
  .word-list{grid-template-columns:1fr}
  .bank-toolbar{grid-template-columns:1fr repeat(3,max-content)}
  .bank-toolbar .secondary{grid-column:4}
  .word-search{min-width:220px}
  #manualWord{width:190px}
}

/* 正式域名上线前：本机学习数据迁移 */
.local-backup-card{display:flex;margin:17px 0 24px;padding:21px 23px;align-items:center;justify-content:space-between;gap:24px;border:1px solid rgba(255,255,255,.58);border-radius:19px;background:linear-gradient(135deg,rgba(255,255,255,.34),rgba(255,187,99,.1));box-shadow:inset 0 1px 0 rgba(255,255,255,.55);backdrop-filter:blur(22px)}
.local-backup-card h3{margin:5px 0 6px;font-size:19px}.local-backup-card p{max-width:760px;margin:0;color:var(--muted);font-size:13px;line-height:1.65}.local-backup-actions{display:flex;flex:0 0 auto;gap:9px}.local-backup-actions button{white-space:nowrap}
@media(max-width:1180px){.local-backup-card{align-items:flex-start;flex-direction:column}.local-backup-actions{width:100%}.local-backup-actions button{flex:1}}

/* 2026-09-20 桌面端易读性与布局升级 */
:root{
  --radius:20px;
  --radius-lg:28px;
}

body{
  min-width:1080px;
  font-size:16px;
  line-height:1.55;
}

.muted{font-size:15px;line-height:1.8}
.eyebrow{font-size:12px;letter-spacing:.15em}
.primary,.secondary{min-height:46px;padding:12px 20px;border-radius:14px;font-size:15px}

/* 登录页：放大说明和输入区域，保持舒展的视觉节奏 */
.auth-screen{grid-template-columns:minmax(560px,1fr) 470px;gap:clamp(64px,8vw,126px);padding:7vh 10vw}
.auth-copy{max-width:760px}
.auth-copy .brand-mark{margin-bottom:58px}
.brand-mark{width:48px;height:48px;border-radius:15px;font-size:24px}
.auth-copy h1{margin:21px 0 24px;font-size:clamp(54px,4.8vw,78px);line-height:1.12}
.auth-copy>p{max-width:720px;font-size:17px;line-height:1.8}
.auth-points{gap:28px;margin-top:40px;font-size:15px}
.auth-card{width:470px;padding:44px 42px;border-radius:32px}
.auth-card h2{margin:15px 0 9px;font-size:34px}
.auth-card label{margin-top:22px;font-size:14px}
.auth-card input{margin-top:10px;padding:16px 17px;border-radius:14px;font-size:16px}
.auth-status{min-height:21px;margin:13px 2px -3px;font-size:13px}
.auth-submit{margin-top:20px}
.auth-card>small{margin-top:17px;font-size:13px;line-height:1.7}

/* 桌面框架：由窄图标栏升级为清晰的文字导航 */
.sidebar{
  top:18px;
  width:176px;
  height:calc(100vh - 36px);
  flex:0 0 176px;
  margin:18px 0 18px 18px;
  padding:22px 14px;
  border-radius:28px;
}
.brand{gap:10px;margin-bottom:28px}
.brand b{font-size:15px;letter-spacing:.03em}
.sidebar nav{gap:7px}
.nav-item{
  display:grid;
  grid-template-columns:30px 1fr;
  min-height:58px;
  padding:10px 12px;
  align-items:center;
  column-gap:9px;
  border-radius:15px;
  text-align:left;
  font-size:14px;
  line-height:1.25;
}
.nav-item>span{margin:0;font-size:21px;text-align:center}
.nav-item em{top:6px;right:7px;min-width:21px;height:21px;padding:0 6px;border-radius:11px;font-size:10px}
.nav-directory-toggle i{right:11px;bottom:8px;font-size:12px}
.nav-directory.open .nav-directory-menu{max-height:300px;margin:7px 0 11px}
.nav-subitem{min-height:42px;padding:7px 10px;gap:9px;border-radius:12px}
.nav-subitem span{width:24px;height:24px;border-radius:7px;font-size:10px}
.nav-subitem b{font-size:13px;line-height:1.25}
.nav-subitem em{display:grid;min-width:24px;height:22px;margin-left:auto;padding:0 6px;place-items:center;border-radius:11px;background:linear-gradient(135deg,var(--red),var(--orange));color:#fff;font-size:10px;font-style:normal;font-weight:750;font-variant-numeric:tabular-nums;box-shadow:0 4px 11px rgba(238,45,24,.2)}

.main{width:calc(100% - 194px);padding:38px 44px 88px}
.main>.view,.main>.topbar{width:min(1380px,100%)}
.topbar{margin-bottom:36px}
.topbar h1{margin-top:9px;font-size:36px;line-height:1.12}
.user-chip{gap:11px;padding:6px 10px 6px 6px;border-radius:24px;font-size:14px}
.avatar{width:38px;height:38px;border-radius:12px;font-size:15px}
.user-chip button{padding:7px;font-size:15px}

/* 首页：更宽的阅读区域，更清楚的卡片层级 */
.hero{min-height:280px;padding:48px 52px;border-radius:30px}
.hero:before{left:52px;right:52px;bottom:22px}
.hero-kicker{font-size:12px}
.hero h2{max-width:920px;margin:53px 0 16px;font-size:46px;line-height:1.16}
.hero p{max-width:900px;font-size:16px;line-height:1.75}
.hero-dragon{margin-right:28px;font-size:16px}
.stats-grid{gap:16px;margin:17px 0 54px}
.stat-card{min-height:158px;padding:25px 26px}
.stat-card span{font-size:12px}
.stat-card strong{margin:16px 0 9px;font-size:42px}
.stat-card small{font-size:13px;line-height:1.6}
.section-head{margin:36px 0 18px}
.section-head h3{margin-top:9px;font-size:29px}
.mode-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.mode-card{min-height:172px;padding:24px;gap:17px}
.mode-icon{width:56px;height:56px;border-radius:14px;font-size:20px}
.mode-card small{font-size:11px}
.mode-card h3{margin:8px 0 7px;font-size:22px}
.mode-card p{font-size:14px;line-height:1.65}
.mode-card .mode-count{display:block;margin-top:10px;color:var(--red-deep);font-size:12px;font-weight:650;font-variant-numeric:tabular-nums}
.mode-card .mode-count b{color:var(--red);font-size:14px}
.mode-card>b{font-size:22px}
.bank-launch{min-height:124px;margin-top:16px;padding:22px 24px;gap:19px}
.bank-launch small{font-size:11px}
.bank-launch h3{margin:7px 0 5px;font-size:21px}
.bank-launch p{font-size:14px;line-height:1.65}
.bank-launch>strong{font-size:14px}
.bank-launch>strong b{font-size:22px}
.bank-launch>i{font-size:22px}
.study-tip{gap:15px;margin-top:16px;padding:18px 20px}
.study-tip span{padding:6px 10px;font-size:12px}
.study-tip p{font-size:14px;line-height:1.65}

/* 题组目录 */
.set-list{gap:17px}
.set-card{min-height:230px;padding:29px;border-radius:24px}
.set-card-top span{font-size:11px}
.difficulty{padding:6px 9px}
.set-card h3{margin:31px 0 11px;font-size:27px;line-height:1.35}
.set-card p{margin-bottom:28px;font-size:14px;line-height:1.7}
.set-card button{right:25px;bottom:23px}

/* 做题页：文章、题干、选项均以长时间阅读为基准 */
.quiz-top{gap:24px;margin-bottom:21px;font-size:14px}
.back-button{padding:8px 0;font-size:14px}
.quiz-layout{grid-template-columns:minmax(0,1.28fr) minmax(450px,.92fr);gap:20px}
.passage-card{top:22px;max-height:calc(100vh - 78px);padding:40px 42px}
.passage-head{padding-bottom:25px}
.passage-head h2{margin:12px 0 9px;font-size:31px;line-height:1.3}
.passage-head>span:last-child{font-size:13px}
.passage-text{padding-top:25px}
.passage-text p{margin-bottom:21px;font-size:18px;line-height:1.95}
.blank-mark{min-width:36px;height:27px;font-size:14px}
.shared-options{gap:9px;margin-top:27px;padding-top:25px}
.shared-option{gap:12px;padding:13px 15px;border-radius:13px;font-size:16px;line-height:1.65}
.question-panel{max-height:calc(100vh - 78px);padding:30px}
.subquestion{padding-bottom:27px;margin-bottom:27px}
.subquestion h3{margin-bottom:16px;font-size:17px;line-height:1.65}
.question-options{gap:10px}
.question-option{gap:12px;padding:14px 15px;border-radius:14px;font-size:16px;line-height:1.6}
.sub-explanation{margin:13px 3px 0;font-size:14px;line-height:1.75}
.quiz-feedback{margin:18px 0;font-size:15px;line-height:1.8}
.quiz-meta{padding:6px 10px;font-size:12px}
.fill-answer{gap:13px;padding:13px 14px;border-radius:14px}
.fill-answer span{font-size:13px}
.fill-answer input{height:43px;padding:0 13px;font-size:17px}
.passage-table{font-size:15px;line-height:1.55}
.passage-table td{padding:12px 13px}
.passage-figure figcaption{font-size:12px}

/* 真题题库：筛选器、标签与摘要在一眼可读的字号上 */
.bank-summary{gap:15px;margin-bottom:16px}
.bank-summary>div{padding:20px 23px;border-radius:18px}
.bank-summary small{font-size:12px}
.bank-summary strong{margin-top:9px;font-size:31px}
.bank-type-tabs{gap:10px;margin-bottom:16px;padding:8px;border-radius:19px}
.bank-type-tabs button{min-height:56px;padding:0 15px;border-radius:13px;font-size:14px}
.bank-type-tabs b{min-width:32px;height:29px;font-size:12px}
.bank-toolbar{grid-template-columns:minmax(360px,1fr) repeat(3,max-content) max-content;gap:11px;padding:18px;border-radius:19px}
.bank-toolbar>label:not(.bank-search){gap:7px;font-size:12px}
.bank-toolbar select{min-width:130px;height:44px;padding-left:13px;font-size:14px}
.bank-search{height:44px;padding:0 14px}
.bank-search input{font-size:15px}
.bank-result-head{margin:16px 3px;font-size:13px;line-height:1.65}
.bank-list{gap:15px}
.bank-card{min-height:270px;padding:25px 25px 72px;border-radius:21px}
.bank-card-top{font-size:12px}
.bank-type-chip{padding:5px 8px;font-size:11px}
.bank-card h3{margin:22px 0 11px;font-size:23px;line-height:1.42}
.bank-card>p{font-size:14px;line-height:1.75;-webkit-line-clamp:3}
.tag-row{gap:7px;margin-top:16px}
.tag-row span{padding:6px 9px;font-size:12px}
.bank-card>button{right:23px;bottom:21px}

/* 错题本与单词本 */
.wrong-toolbar,.word-toolbar,.manual-word{gap:14px;padding:19px 20px;border-radius:19px}
.wrong-toolbar{margin-bottom:15px}
.wrong-toolbar label{font-size:13px}
.wrong-toolbar select{padding:11px 13px;font-size:14px}
.wrong-toolbar span{font-size:14px}
.wrong-list{gap:13px}
.wrong-item{gap:18px;padding:21px;border-radius:19px}
.wrong-type{width:51px;height:51px;font-size:16px}
.wrong-copy b{margin-bottom:7px;font-size:18px}
.wrong-copy p{margin:4px 0;font-size:13px;line-height:1.65}
.empty-state{padding:46px;border-radius:21px}
.empty-state b{font-size:20px}
.empty-state p{font-size:15px}
.word-stats{gap:15px;margin-bottom:17px}
.word-stats>div{padding:21px 23px;border-radius:19px}
.word-stats small{font-size:12px}
.word-stats strong{margin-top:10px;font-size:34px}
.word-toolbar{margin-bottom:13px}
.segmented button{padding:10px 15px;font-size:14px}
.word-search{min-width:340px;padding:0 14px}
.word-search input{height:44px;font-size:15px}
.manual-word{margin-bottom:10px}
.manual-word input{height:45px;padding:0 14px;font-size:15px}
#manualWord{width:250px}
.word-list-status{margin:12px 3px;font-size:13px}
.word-list{gap:13px}
.word-item{min-height:112px;gap:15px;padding:19px 20px;border-radius:18px}
.word-main b{font-size:21px}
.word-main .phonetic{margin-left:9px;font-size:13px}
.word-main p{margin-top:8px;font-size:14px;line-height:1.65}
.word-actions{gap:8px}
.word-actions button{min-height:39px;padding:8px 11px;font-size:12px}

/* 听力与查词弹窗 */
.listening-player{margin-top:25px;padding:20px 21px;border-radius:18px}
.listening-player>div{margin-bottom:14px}
.listening-player b{font-size:15px}
.listening-player span,.listening-player small{font-size:12px}
.listening-player audio{height:48px}
.listening-player>small{margin-top:11px}
.listening-transcript{margin-top:19px;border-radius:18px}
.listening-transcript summary{padding:18px 20px;font-size:14px}
.listening-transcript summary:after,.listening-transcript summary small{font-size:12px}
.listening-transcript .passage-text{padding:22px 23px 8px}
.transcript-segment{margin-bottom:28px}
.transcript-segment-head{gap:10px;margin-bottom:11px}
.transcript-segment-head b{font-size:15px}
.transcript-segment-head span,.transcript-segment-head small{font-size:11px}
.transcript-segment p{margin-bottom:10px;font-size:17px;line-height:1.85}
dialog{width:510px;padding:40px;border-radius:29px}
.dialog-close{width:35px;height:35px;font-size:21px}
.word-dialog h2{font-size:38px}
.lookup-state{margin:21px 0;padding:14px 15px;font-size:14px}
.word-dialog label{gap:9px;font-size:13px}
.word-dialog textarea{padding:14px;font-size:15px}
.lookup-example{font-size:14px;line-height:1.75}
.toast{right:32px;bottom:30px;padding:14px 18px;font-size:14px}

@media(max-width:1480px){
  .main{padding-left:34px;padding-right:34px}
  .mode-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .bank-toolbar{grid-template-columns:minmax(280px,1fr) repeat(3,max-content)}
  .bank-toolbar .secondary{grid-column:4}
}

@media(max-width:1180px){
  body{min-width:980px}
  .sidebar{width:164px;flex-basis:164px;margin-left:14px}
  .main{width:calc(100% - 178px);padding:32px 25px 76px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .mode-grid{grid-template-columns:1fr}
  .quiz-layout{grid-template-columns:1fr}
  .passage-card{position:relative;top:auto;max-height:none}
  .question-panel{max-height:none}
  .bank-type-tabs{grid-template-columns:repeat(3,1fr)}
  .bank-toolbar{grid-template-columns:1fr repeat(3,max-content)}
  .bank-list,.set-list,.word-list{grid-template-columns:1fr}
}

/* 2026-09-20 计时、做题记录与高考词汇识别 */
.sidebar{overflow-y:auto;scrollbar-width:none}
.sidebar::-webkit-scrollbar{display:none}
.quiz-top{flex-wrap:wrap}
.quiz-timer{display:flex;min-height:38px;padding:7px 12px;align-items:center;gap:8px;border:1px solid rgba(238,45,24,.2);border-radius:12px;background:linear-gradient(135deg,rgba(255,255,255,.58),rgba(255,187,99,.14));box-shadow:inset 0 1px 0 rgba(255,255,255,.65);color:var(--red-deep);font-variant-numeric:tabular-nums}
.quiz-timer>span{font-size:17px}.quiz-timer b{min-width:48px;font-size:16px;letter-spacing:.04em}.quiz-timer small{color:var(--muted);font-size:11px;font-weight:650}
.quiz-timer.finished{border-color:rgba(24,124,69,.25);background:rgba(80,181,116,.12);color:var(--success)}
.lookup-locked .word{border-bottom:1px dotted rgba(89,99,108,.38);cursor:not-allowed}
.lookup-locked .word:hover{background:transparent;color:inherit}
.question-option.answered{cursor:default}

.history-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-bottom:17px}
.history-summary>div{position:relative;padding:21px 23px;border:1px solid rgba(255,255,255,.58);border-radius:19px;background:rgba(255,255,255,.25);box-shadow:inset 0 1px 0 rgba(255,255,255,.5);backdrop-filter:blur(22px)}
.history-summary>div:before{position:absolute;top:0;right:19px;width:40px;height:2px;background:linear-gradient(90deg,var(--red),var(--yellow));box-shadow:0 0 9px rgba(238,45,24,.3);content:""}
.history-summary small,.history-summary strong{display:block}.history-summary small{color:var(--soft-muted);font-size:12px;letter-spacing:.1em}.history-summary strong{margin-top:10px;font-size:34px;font-weight:650;font-variant-numeric:tabular-nums}
.history-toolbar{display:flex;margin-bottom:15px;padding:18px 20px;align-items:end;justify-content:space-between;border:1px solid var(--line-soft);border-radius:19px;background:var(--glass-soft);box-shadow:inset 0 1px 0 rgba(255,255,255,.48);backdrop-filter:blur(20px)}
.history-toolbar label{display:grid;gap:7px;color:var(--muted);font-size:13px;font-weight:650}.history-toolbar select{min-width:145px;height:44px;padding:0 34px 0 13px;border:1px solid rgba(255,255,255,.62);border-radius:11px;background:rgba(255,255,255,.3);color:var(--ink);font-size:14px}.history-toolbar span{color:var(--muted);font-size:14px}
.history-list{display:grid;gap:13px}.history-item{display:flex;padding:21px;align-items:flex-start;gap:18px;border:1px solid rgba(255,255,255,.58);border-radius:19px;background:rgba(255,255,255,.25);box-shadow:inset 0 1px 0 rgba(255,255,255,.5);backdrop-filter:blur(22px)}
.history-type{display:grid;width:51px;height:51px;place-items:center;flex:0 0 auto;border:1px solid rgba(238,45,24,.18);border-radius:12px;background:linear-gradient(135deg,rgba(238,45,24,.14),rgba(255,157,0,.15));color:var(--red);font-size:16px;font-weight:750}
.history-copy{min-width:0;flex:1}.history-title{display:flex;align-items:center;justify-content:space-between;gap:18px}.history-title>b{font-size:18px;line-height:1.45}.history-title strong{min-width:62px;padding:5px 9px;border-radius:9px;background:rgba(238,45,24,.1);color:var(--red-deep);text-align:center;font-size:14px}.history-title strong.perfect{background:rgba(43,155,91,.13);color:var(--success)}
.history-copy>p{margin:5px 0;color:var(--muted);font-size:13px;line-height:1.6}.history-item>.secondary{flex:0 0 auto}
.history-errors{margin-top:12px;border:1px solid rgba(201,46,26,.15);border-radius:13px;background:rgba(238,45,24,.05);overflow:hidden}.history-errors summary{padding:10px 13px;color:var(--red-deep);cursor:pointer;font-size:13px;font-weight:700}.history-errors>div{padding:0 13px 10px}.history-errors p{display:grid;gap:4px;margin:7px 0;padding-top:9px;border-top:1px solid rgba(89,99,108,.12)}.history-errors p b{font-size:13px}.history-errors p span{font-family:Georgia,"Times New Roman",serif;font-size:14px;line-height:1.55}.history-errors p small{color:var(--muted);font-size:12px}.history-perfect{margin-top:11px;color:var(--success);font-size:13px;font-weight:700}

.word-stats{grid-template-columns:repeat(4,1fr)}
.word-item{min-height:126px}
.word-heading{display:flex;align-items:center;gap:9px;flex-wrap:wrap}.word-heading b{font-family:Georgia,"Times New Roman",serif;font-size:21px}
.vocab-badge{display:inline-flex;padding:4px 7px;align-items:center;border:1px solid rgba(89,99,108,.14);border-radius:7px;background:rgba(89,99,108,.08);color:var(--muted);font-size:10px;font-weight:700;white-space:nowrap}
.vocab-badge.included{border-color:rgba(238,45,24,.16);background:linear-gradient(90deg,rgba(238,45,24,.1),rgba(255,157,0,.09));color:var(--red-deep)}
.word-source{display:block;margin-top:7px;color:var(--soft-muted);font-size:11px}
.lookup-meta{display:flex;margin-top:13px;align-items:center;gap:10px;color:var(--muted);font-size:12px}.lookup-definition{margin:0 0 18px;color:var(--muted);font-family:Georgia,"Times New Roman",serif;font-size:13px;line-height:1.65}.lookup-definition:empty{display:none}

@media(max-width:1180px){
  .history-summary,.word-stats{grid-template-columns:repeat(2,1fr)}
  .history-item{flex-wrap:wrap}.history-item>.secondary{margin-left:69px}
}

/* 2026-09-30 网友建议：可收起侧栏、文章标记、听力分段与历史回顾 */
.brand{position:relative}.sidebar-toggle{position:absolute;top:7px;right:-8px;display:grid;width:25px;height:25px;padding:0;place-items:center;border:1px solid rgba(255,255,255,.72);border-radius:50%;background:rgba(255,255,255,.76);box-shadow:0 5px 15px rgba(30,35,38,.17);color:var(--red-deep);font-size:20px;line-height:1;z-index:2}
.sidebar,.main{transition:width .22s ease,flex-basis .22s ease,padding .22s ease,margin .22s ease}
body.sidebar-collapsed .sidebar{width:66px;flex-basis:66px;padding-left:8px;padding-right:8px}
body.sidebar-collapsed .main{width:calc(100% - 86px)}
body.sidebar-collapsed .brand b,body.sidebar-collapsed .nav-directory-menu{display:none}
body.sidebar-collapsed .brand{margin-bottom:18px}
body.sidebar-collapsed .nav-item{font-size:0;min-height:51px}
body.sidebar-collapsed .nav-item>span{margin:0;font-size:20px}
body.sidebar-collapsed .nav-directory-toggle i{display:none}
body.sidebar-collapsed .nav-item em{top:0;right:0;font-size:8px}

#materialHint{display:block;color:var(--muted);font-size:11px}
.annotation-toolbar{display:flex;margin-top:15px;align-items:center;gap:7px;flex-wrap:wrap}.annotation-toolbar>span{margin-right:2px;color:var(--muted);font-size:11px;font-weight:700}.annotation-toolbar button{min-height:31px;padding:6px 10px;border:1px solid rgba(89,99,108,.16);border-radius:9px;background:rgba(255,255,255,.31);color:var(--muted);font-size:11px;font-weight:700}.annotation-toolbar button.active{border-color:rgba(238,45,24,.28);background:linear-gradient(135deg,rgba(238,45,24,.15),rgba(255,157,0,.13));color:var(--red-deep)}
.annotation-note{display:grid;margin-top:11px;gap:6px;color:var(--muted);font-size:11px;font-weight:700}.annotation-note textarea{width:100%;padding:10px 11px;resize:vertical;border:1px solid rgba(89,99,108,.16);border-radius:10px;background:rgba(255,255,255,.27);color:var(--ink);font-size:12px;line-height:1.55}.annotation-note textarea::placeholder{color:var(--soft-muted)}
.word.marked-highlight{padding:1px 2px;background:linear-gradient(transparent 24%,rgba(255,193,45,.48) 24% 91%,transparent 91%);color:inherit}.word.marked-underline{border-bottom:2px solid var(--cyan)}.lookup-locked.annotation-active .word{cursor:crosshair}.lookup-locked.annotation-active .word:hover{background:rgba(255,193,45,.24);color:inherit}

.segment-audio-actions{display:flex;margin:0 0 10px;align-items:center;gap:7px;flex-wrap:wrap}.segment-audio-actions button{min-height:29px;padding:5px 9px;border:1px solid rgba(89,99,108,.15);border-radius:8px;background:rgba(255,255,255,.32);color:var(--red-deep);font-size:10px;font-weight:700}.segment-audio-actions button:hover,.segment-audio-actions button.active{border-color:rgba(238,45,24,.26);background:rgba(238,45,24,.12)}.segment-audio-actions>span{margin-left:auto;color:var(--soft-muted);font-size:10px;font-variant-numeric:tabular-nums}
.history-actions{display:flex;flex:0 0 auto;gap:8px;flex-direction:column}.history-actions button{white-space:nowrap}.history-item .history-actions .primary{min-height:38px;padding:8px 12px}

@media(max-width:1180px){
  body.sidebar-collapsed .sidebar{width:66px;flex-basis:66px;margin-left:10px}
  body.sidebar-collapsed .main{width:calc(100% - 76px);padding-left:20px;padding-right:20px}
  .history-actions{margin-left:69px;flex-direction:row}
}