:root{
  --bg:#f4f6fb;
  --panel:#ffffff;
  --panel2:#f8fafc;
  --text:#111827;
  --muted:#6b7280;
  --line:#e5e7eb;
  --primary:#4f46e5;
  --primary2:#7c3aed;
  --good:#16a34a;
  --warn:#d97706;
  --bad:#dc2626;
  --shadow:0 18px 50px rgba(15,23,42,.10);
  --radius:22px;
  --bottom:86px;
}
[data-theme="dark"]{
  --bg:#0f172a;
  --panel:#111827;
  --panel2:#1f2937;
  --text:#f8fafc;
  --muted:#9ca3af;
  --line:#334155;
  --shadow:0 18px 50px rgba(0,0,0,.28);
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--text)}
body{overscroll-behavior-y:none}
button,input,textarea,select{font:inherit}
button{cursor:pointer;border:0}
.app-shell{min-height:100dvh;max-width:980px;margin:0 auto;position:relative;background:linear-gradient(180deg,rgba(79,70,229,.08),transparent 280px)}
.screen{padding:18px 16px calc(var(--bottom) + env(safe-area-inset-bottom));min-height:100dvh}
.center-screen{display:grid;place-items:center;text-align:center;color:var(--muted)}
.topbar{position:sticky;top:0;z-index:10;backdrop-filter:blur(18px);background:color-mix(in srgb,var(--bg) 84%,transparent);padding:12px 0 10px;margin:-18px -16px 10px;border-bottom:1px solid color-mix(in srgb,var(--line) 55%,transparent)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:0 16px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.logo{width:38px;height:38px;border-radius:15px;background:linear-gradient(135deg,var(--primary),var(--primary2));display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:0 10px 24px rgba(79,70,229,.28)}
.brand h1{font-size:19px;margin:0;line-height:1.05;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.brand p{font-size:12px;margin:3px 0 0;color:var(--muted)}
.icon-btn{min-width:38px;height:38px;border-radius:14px;background:var(--panel);color:var(--text);box-shadow:0 4px 18px rgba(15,23,42,.08);border:1px solid var(--line)}
.grid{display:grid;gap:14px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}.card.soft{background:var(--panel2);box-shadow:none}.card h2,.card h3{margin:0 0 10px}.card h2{font-size:22px}.card h3{font-size:17px}.card p{color:var(--muted);line-height:1.72;margin:8px 0}
.hero{padding:20px;background:linear-gradient(135deg,#4f46e5,#8b5cf6);color:#fff;border:0;overflow:hidden;position:relative}.hero:after{content:"";position:absolute;right:-30px;top:-40px;width:170px;height:170px;border-radius:999px;background:rgba(255,255,255,.14)}.hero p{color:rgba(255,255,255,.82)}
.stat{display:flex;flex-direction:column;gap:4px;padding:14px;border-radius:18px;background:var(--panel);border:1px solid var(--line)}.stat b{font-size:26px}.stat span{font-size:12px;color:var(--muted)}
.row{display:flex;gap:10px;align-items:center}.row.wrap{flex-wrap:wrap}.row.between{justify-content:space-between}.grow{flex:1}.muted{color:var(--muted)!important}.small{font-size:12px}.tiny{font-size:11px}.danger{color:var(--bad)!important}.good{color:var(--good)!important}.warn{color:var(--warn)!important}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:42px;padding:10px 14px;border-radius:15px;background:var(--primary);color:#fff;font-weight:700;box-shadow:0 10px 24px rgba(79,70,229,.22)}.btn.secondary{background:var(--panel2);color:var(--text);box-shadow:none;border:1px solid var(--line)}.btn.ghost{background:transparent;color:var(--primary);box-shadow:none}.btn.good{background:var(--good);color:#fff}.btn.warn{background:var(--warn);color:#fff}.btn.bad{background:var(--bad);color:#fff}.btn:disabled{opacity:.55;cursor:not-allowed}
.input,textarea,select{width:100%;border:1px solid var(--line);background:var(--panel);color:var(--text);border-radius:15px;padding:12px 13px;outline:none}textarea{resize:vertical;min-height:84px;line-height:1.6}.input:focus,textarea:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(79,70,229,.10)}label{display:block;font-size:13px;color:var(--muted);margin:10px 0 6px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.form-grid.one{grid-template-columns:1fr}
.chip{display:inline-flex;align-items:center;gap:5px;padding:7px 10px;border-radius:999px;background:var(--panel2);border:1px solid var(--line);font-size:12px;color:var(--muted)}.chip.primary{background:rgba(79,70,229,.10);border-color:rgba(79,70,229,.22);color:var(--primary)}.chip.good{background:rgba(22,163,74,.10);border-color:rgba(22,163,74,.22);color:var(--good)}.chip.warn{background:rgba(217,119,6,.10);border-color:rgba(217,119,6,.22);color:var(--warn)}.chip.bad{background:rgba(220,38,38,.10);border-color:rgba(220,38,38,.22);color:var(--bad)}
.list{display:grid;gap:10px}.list-item{display:block;text-align:left;width:100%;padding:14px;border-radius:18px;background:var(--panel);border:1px solid var(--line);color:var(--text);box-shadow:0 8px 22px rgba(15,23,42,.06)}.list-item h4{margin:0 0 6px;font-size:16px}.list-item p{margin:0;color:var(--muted);font-size:13px;line-height:1.55}.list-actions{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}.mini-btn{padding:7px 10px;min-height:32px;border-radius:12px;background:var(--panel2);border:1px solid var(--line);color:var(--text);font-size:12px}
.nav{position:fixed;left:50%;transform:translateX(-50%);bottom:0;z-index:30;width:min(980px,100%);padding:9px 10px calc(9px + env(safe-area-inset-bottom));background:color-mix(in srgb,var(--panel) 92%,transparent);backdrop-filter:blur(20px);border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(5,1fr);gap:6px}.nav button{display:flex;flex-direction:column;align-items:center;gap:4px;background:transparent;color:var(--muted);border-radius:15px;padding:8px 2px;font-size:11px}.nav button b{font-size:18px;line-height:1}.nav button.active{background:rgba(79,70,229,.10);color:var(--primary);font-weight:800}
.reader{font-family:Georgia,"Times New Roman","PingFang SC",serif}.article-title{font-size:30px;line-height:1.18;margin:0 0 10px}.paragraph{font-size:19px;line-height:2.05;margin:18px 0}.sentence{border-radius:9px;transition:.15s}.sentence:active{background:rgba(79,70,229,.12)}.word{display:inline;border-radius:6px;padding:0 1px;cursor:pointer}.word:hover,.word.active{background:rgba(79,70,229,.13);color:var(--primary)}.question{padding:14px;border-radius:18px;border:1px solid var(--line);background:var(--panel2);margin:10px 0}.option{display:flex;gap:8px;align-items:flex-start;margin:8px 0;padding:10px;border:1px solid var(--line);border-radius:14px;background:var(--panel)}.option.correct{border-color:rgba(22,163,74,.5);background:rgba(22,163,74,.09)}.option.wrong{border-color:rgba(220,38,38,.5);background:rgba(220,38,38,.08)}
.modal-backdrop{position:fixed;inset:0;z-index:50;background:rgba(15,23,42,.45);display:flex;align-items:flex-end;justify-content:center;padding:14px}.modal{width:min(720px,100%);max-height:min(84dvh,720px);overflow:auto;background:var(--panel);color:var(--text);border-radius:26px;padding:16px;box-shadow:0 30px 80px rgba(0,0,0,.35);border:1px solid var(--line)}.modal h3{margin:0 0 8px}.modal-section{padding:12px;border-radius:17px;background:var(--panel2);border:1px solid var(--line);margin:10px 0}.modal-close{position:sticky;top:0;float:right;background:var(--panel2);border:1px solid var(--line);border-radius:14px;width:38px;height:38px;color:var(--text)}
.toast{position:fixed;left:50%;bottom:96px;transform:translateX(-50%) translateY(20px);z-index:90;max-width:min(540px,calc(100% - 30px));background:#111827;color:#fff;padding:12px 14px;border-radius:15px;opacity:0;pointer-events:none;transition:.2s;box-shadow:0 14px 38px rgba(0,0,0,.28)}.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.loader{width:36px;height:36px;border:4px solid rgba(79,70,229,.2);border-left-color:var(--primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}
.empty{text-align:center;padding:32px 18px;color:var(--muted);border:1px dashed var(--line);border-radius:22px;background:var(--panel2)}.kbd{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:var(--panel2);border:1px solid var(--line);padding:2px 6px;border-radius:8px;font-size:12px}.hidden{display:none!important}
@media (min-width:760px){.screen{padding-left:22px;padding-right:22px}.desktop-2{display:grid;grid-template-columns:1.05fr .95fr;gap:14px}.paragraph{font-size:20px}.modal-backdrop{align-items:center}.nav{border-radius:26px 26px 0 0}.topbar-inner{padding:0 22px}}
@media (max-width:520px){.grid-2,.grid-3,.form-grid{grid-template-columns:1fr}.article-title{font-size:25px}.paragraph{font-size:18px}.hero{padding:17px}.brand h1{font-size:17px}.btn{width:100%}.row .btn{width:auto}.row.mobile-stack{align-items:stretch;flex-direction:column}.nav{grid-template-columns:repeat(5,1fr)}}

/* v2 additions */
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.stat-link{color:var(--text);text-align:left;box-shadow:var(--shadow);transition:.16s transform,.16s border-color;background:var(--panel)}
.stat-link:hover,.stat-link:focus-visible{transform:translateY(-1px);border-color:rgba(79,70,229,.35);outline:none}.stat-link b{color:var(--primary)}
.difficulty-help{display:grid;gap:8px;margin-top:12px;padding:12px;border:1px solid var(--line);border-radius:18px;background:var(--panel2)}
.difficulty-row{display:grid;grid-template-columns:42px 1fr;gap:10px;align-items:start}.difficulty-row b{display:grid;place-items:center;width:36px;height:30px;border-radius:12px;background:rgba(79,70,229,.10);color:var(--primary);border:1px solid rgba(79,70,229,.18)}.difficulty-row strong{font-size:13px}.difficulty-row p{font-size:12px;line-height:1.55;margin:3px 0 0;color:var(--muted)}
@media (max-width:700px){.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.difficulty-row{grid-template-columns:36px 1fr}}


/* v5 additions: clearer clickable counters and DeepSeek panel */
.stat small{font-size:11px;color:var(--muted);line-height:1.25}.clickable-number{display:inline-flex;align-items:center;justify-content:center;width:max-content;min-width:38px;border-radius:12px;text-decoration:underline;text-underline-offset:4px}.stat-link:active .clickable-number{transform:scale(.96)}.deepseek-card{border-color:rgba(79,70,229,.28);background:linear-gradient(180deg,rgba(79,70,229,.06),var(--panel) 42%)}.deepseek-card h3{display:flex;align-items:center;gap:8px}.deepseek-card h3:before{content:"⚡";display:inline-grid;place-items:center;width:28px;height:28px;border-radius:10px;background:rgba(79,70,229,.12)}


/* v6 additions: visible DeepSeek API key input */
.deepseek-quick{scroll-margin-top:80px}.input-action-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px;align-items:center}.input-action-row .mini-btn{height:46px;padding:0 13px;white-space:nowrap}.deepseek-quick .chip{align-self:flex-start}.deepseek-quick h3{margin-bottom:4px}.deepseek-quick .small{line-height:1.6}@media (max-width:520px){.input-action-row{grid-template-columns:1fr}.input-action-row .mini-btn{height:40px}.deepseek-quick .row .btn{width:100%}}

/* v8 additions: American audio reading, sentence jump reading, phonetic display */
.audio-card{border-color:rgba(22,163,74,.24);background:linear-gradient(180deg,rgba(22,163,74,.06),var(--panel) 48%)}
.speech-controls{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.speech-controls .mini-btn{min-height:36px}
.sentence{cursor:pointer;scroll-margin-top:96px;padding:2px 3px}.sentence.playing{background:rgba(22,163,74,.14);box-shadow:0 0 0 2px rgba(22,163,74,.24);color:var(--text)}
.sentence.playing .word{color:inherit}.phonetic{font-size:24px;line-height:1.45;color:var(--primary)!important;font-family:Georgia,"Times New Roman",serif}
@media (max-width:520px){.speech-controls{display:grid;grid-template-columns:1fr 1fr}.speech-controls .mini-btn{width:100%}}

/* v9: 自定义文章输入框 */
.custom-article-card .tall-textarea{min-height:220px;line-height:1.7;font-size:15px}
.custom-article-card{border-color:rgba(79,70,229,.22)}


/* v10: 英英辞典解释 + 中文解释顺序 */
.dictionary-en{border-color:rgba(37,99,235,.22);background:color-mix(in srgb,var(--panel2) 86%,rgba(37,99,235,.10))}
.dictionary-zh{border-color:rgba(79,70,229,.18)}
.definition-en{color:var(--text)!important;line-height:1.65}.definition-zh{color:var(--muted)!important;line-height:1.65}.list-item .small b{color:var(--text)}

/* v11: 朗读单句循环 / 全文循环；API 入口集中到“我的” */
.speech-controls .mini-btn.loop-on{background:rgba(22,163,74,.12);border-color:rgba(22,163,74,.38);color:var(--good);font-weight:800}
#deepseekApiPanel{scroll-margin-top:86px}


/* v13: 全页面英文轻触查词 + 朗读快进倒退 */
.lookup-token{display:inline;border-radius:6px;padding:0 1px;cursor:pointer;text-decoration:underline;text-decoration-style:dotted;text-underline-offset:3px}
.lookup-token:hover,.lookup-token:active{background:rgba(79,70,229,.13);color:var(--primary)}
.speech-controls .play-main{width:25vw;min-width:118px;max-width:260px;min-height:52px;font-size:17px;font-weight:900;border-radius:18px;background:linear-gradient(135deg,var(--primary),#7c3aed);color:#fff;border-color:transparent;box-shadow:0 10px 28px rgba(79,70,229,.26)}
.skip-control{display:flex;align-items:center;gap:8px;min-height:36px;padding:4px 9px;border:1px solid var(--line);border-radius:12px;background:var(--panel2);font-size:12px;color:var(--muted)}
.skip-control input{width:72px;height:32px;min-height:32px;padding:4px 8px;border-radius:10px;text-align:center}
@media (max-width:520px){.speech-controls{grid-template-columns:1fr 1fr}.speech-controls .play-main{width:25vw;min-width:calc((100vw - 52px) / 2);grid-column:span 1}.skip-control{justify-content:space-between}.skip-control input{width:88px}}

/* v14: 暂停/继续按钮全宽 */
.speech-controls .pause-main{width:100%;flex:0 0 100%;min-height:56px;font-size:18px;font-weight:900;border-radius:18px;background:linear-gradient(135deg,rgba(22,163,74,.14),rgba(79,70,229,.10));border:1px solid rgba(22,163,74,.34);color:var(--text);box-shadow:0 8px 24px rgba(15,23,42,.08)}
.speech-controls .pause-main:active{transform:scale(.99)}
@media (max-width:520px){.speech-controls .pause-main{grid-column:1/-1;width:100%;min-width:100%;min-height:58px}}

/* v27: 邻近互补配色系统。用紫/靛作为主色，琥珀/暖黄作为互补文字与按钮前景，提升层次和可读性。 */
:root{
  --bg:#f7f3ff;
  --panel:#fffefa;
  --panel2:#fff7dc;
  --text:#24260d;
  --muted:#6f6418;
  --line:#eadfbd;
  --primary:#4f46e5;
  --primary2:#6d28d9;
  --primaryText:#fff2b3;
  --accent:#f59e0b;
  --accent2:#84cc16;
  --accentText:#211200;
}
[data-theme="dark"]{
  --bg:#101124;
  --panel:#181a30;
  --panel2:#25213a;
  --text:#fff2b3;
  --muted:#d9c46a;
  --line:#51465a;
  --primary:#8b5cf6;
  --primary2:#4f46e5;
  --primaryText:#fff6cc;
  --accent:#fbbf24;
  --accent2:#a3e635;
  --accentText:#1b1300;
}
body,.card,.list-item,.modal,.input,textarea,select{color:var(--text)}
.btn{background:linear-gradient(135deg,var(--primary),var(--primary2));color:var(--primaryText);border:1px solid color-mix(in srgb,var(--accent) 30%,transparent)}
.btn.secondary,.mini-btn,.icon-btn{background:linear-gradient(135deg,var(--panel2),color-mix(in srgb,var(--accent) 10%,var(--panel)));color:var(--text);border-color:color-mix(in srgb,var(--primary) 18%,var(--line))}
.btn.ghost{color:var(--primary);background:transparent}
.logo,.hero,.speech-controls .play-main{color:var(--primaryText)}
.hero{background:linear-gradient(135deg,var(--primary),var(--primary2));border:1px solid color-mix(in srgb,var(--accent) 26%,transparent)}
.hero p{color:color-mix(in srgb,var(--primaryText) 82%,white)}
.chip.primary,.stat-link b,.phonetic,.word:hover,.word.active,.lookup-token:hover,.lookup-token:active{color:var(--primary)!important}
.chip.warn{color:var(--accent);border-color:color-mix(in srgb,var(--accent) 34%,transparent);background:color-mix(in srgb,var(--accent) 10%,var(--panel2))}
.nav button.active{background:color-mix(in srgb,var(--primary) 12%,var(--accent) 8%);color:var(--primary)}
.stat-link:hover,.stat-link:focus-visible{border-color:color-mix(in srgb,var(--primary) 38%,var(--accent) 22%)}
.reader .paragraph,.definition-en,.list-item h4,.article-title{color:var(--text)!important}
label,.small,.muted,.card p,.list-item p{color:var(--muted)}

/* v28: 高对比明显配色。所有文字、标签、按钮、输入框、导航都提高对比度，避免浅灰不清楚。 */
:root{
  --bg:#fff7ed;
  --panel:#ffffff;
  --panel2:#fffbeb;
  --text:#0f172a;
  --muted:#334155;
  --line:#92400e;
  --primary:#581c87;
  --primary2:#be123c;
  --primaryText:#fffbea;
  --accent:#facc15;
  --accent2:#ea580c;
  --accentText:#111827;
  --good:#047857;
  --warn:#b45309;
  --bad:#b91c1c;
}
[data-theme="dark"]{
  --bg:#09090b;
  --panel:#18181b;
  --panel2:#27272a;
  --text:#fff7ed;
  --muted:#fde68a;
  --line:#f59e0b;
  --primary:#a855f7;
  --primary2:#e11d48;
  --primaryText:#fffbea;
  --accent:#facc15;
  --accent2:#fb923c;
  --accentText:#111827;
  --good:#34d399;
  --warn:#fbbf24;
  --bad:#f87171;
}
html,body{color:var(--text)!important;background:var(--bg)!important}
.card,.list-item,.modal,.stat,.input,textarea,select,.nav,.topbar,.modal-section,.option,.question{color:var(--text)!important;border-color:var(--line)!important}
.card,.list-item,.modal,.stat,.input,textarea,select,.option{background:var(--panel)!important}
.card.soft,.modal-section,.question,.empty,.chip,.mini-btn,.icon-btn,.btn.secondary{background:var(--panel2)!important}
h1,h2,h3,h4,h5,h6,.brand h1,.article-title,.reader .paragraph,.definition-en,.list-item h4,.difficulty-row strong,.stat b,.option,.question{color:var(--text)!important;font-weight:900!important}
p,label,.small,.tiny,.muted,.card p,.brand p,.list-item p,.definition-zh,.difficulty-row p,.stat span,.skip-control{color:var(--muted)!important;font-weight:700!important}
a,.lookup-token,.word:hover,.word.active,.phonetic,.chip.primary,.stat-link b{color:var(--primary)!important;font-weight:900!important}
.input::placeholder,textarea::placeholder{color:#64748b!important;opacity:1!important;font-weight:700!important}
[data-theme="dark"] .input::placeholder,[data-theme="dark"] textarea::placeholder{color:#fcd34d!important}
.input,textarea,select{border-width:2px!important;box-shadow:0 2px 0 rgba(15,23,42,.06)!important}
.input:focus,textarea:focus,select:focus{border-color:var(--primary)!important;box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 35%,transparent)!important}
.btn{background:linear-gradient(135deg,var(--primary),var(--primary2))!important;color:var(--primaryText)!important;border:2px solid var(--accent)!important;font-weight:950!important;text-shadow:0 1px 1px rgba(0,0,0,.35);box-shadow:0 10px 26px rgba(88,28,135,.32)!important}
.btn.secondary,.mini-btn,.icon-btn{background:linear-gradient(135deg,var(--accent),#fff7ed)!important;color:var(--accentText)!important;border:2px solid var(--primary)!important;font-weight:900!important;text-shadow:none!important;box-shadow:0 6px 16px rgba(146,64,14,.18)!important}
.btn.ghost{background:#ffffff!important;color:var(--primary)!important;border:2px solid var(--primary)!important;box-shadow:0 6px 16px rgba(88,28,135,.14)!important}
.btn.good{background:linear-gradient(135deg,#047857,#065f46)!important;color:#ecfdf5!important;border-color:#6ee7b7!important}
.btn.warn{background:linear-gradient(135deg,#b45309,#c2410c)!important;color:#fff7ed!important;border-color:#facc15!important}
.btn.bad{background:linear-gradient(135deg,#b91c1c,#7f1d1d)!important;color:#fff1f2!important;border-color:#fda4af!important}
.mini-btn:active,.btn:active,.icon-btn:active{transform:scale(.98)}
.chip{border-width:2px!important;color:var(--text)!important;font-weight:900!important}
.chip.primary{background:#ede9fe!important;border-color:var(--primary)!important;color:var(--primary)!important}
.chip.good{background:#d1fae5!important;border-color:var(--good)!important;color:var(--good)!important}
.chip.warn{background:#fef3c7!important;border-color:var(--warn)!important;color:var(--warn)!important}
.chip.bad{background:#fee2e2!important;border-color:var(--bad)!important;color:var(--bad)!important}
.logo{background:linear-gradient(135deg,var(--primary),var(--primary2))!important;color:var(--primaryText)!important;border:2px solid var(--accent)!important}
.hero{background:linear-gradient(135deg,var(--primary),var(--primary2))!important;color:var(--primaryText)!important;border:2px solid var(--accent)!important}.hero p{color:#fff7cc!important;font-weight:800!important}
.nav button{color:var(--muted)!important;font-weight:900!important;border:1px solid transparent}.nav button.active{background:linear-gradient(135deg,var(--primary),var(--primary2))!important;color:var(--primaryText)!important;border-color:var(--accent)!important}.nav button b{filter:drop-shadow(0 1px 0 rgba(0,0,0,.18))}
.stat-link{border-width:2px!important}.stat-link:hover,.stat-link:focus-visible{border-color:var(--primary)!important;box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 30%,transparent),var(--shadow)!important}
.toast{background:#020617!important;color:#fffbea!important;border:2px solid var(--accent)!important;font-weight:900!important;font-size:15px!important}
.speech-controls .play-main,.speech-controls .pause-main{border:2px solid var(--accent)!important;color:var(--primaryText)!important;text-shadow:0 1px 1px rgba(0,0,0,.35)}
.speech-controls .pause-main{background:linear-gradient(135deg,#047857,#581c87)!important}
.sentence.playing{background:#fef3c7!important;box-shadow:0 0 0 3px var(--primary)!important;color:#111827!important}
.lookup-token{background:rgba(250,204,21,.18);text-decoration-color:var(--primary)!important}.lookup-token:hover,.lookup-token:active{background:#facc15!important;color:#111827!important}
.deepseek-card,.custom-article-card,.audio-card{border-width:2px!important;border-color:var(--primary)!important}
.good{color:var(--good)!important;font-weight:900!important}.warn{color:var(--warn)!important;font-weight:900!important}.danger{color:var(--bad)!important;font-weight:900!important}
@media (max-width:520px){.btn,.mini-btn,.icon-btn{font-weight:950!important}.nav button{font-size:12px!important}}


/* v29: 首页 Hero 区域指定文字强制白色。
   覆盖全局高对比配色与英文轻触查词 token 样式，避免“当前 AI / DeepSeek API / A1 / WebDAV / KV / 按钮文字”等变成深色。 */
.hero,
.hero h1,
.hero h2,
.hero h3,
.hero h4,
.hero p,
.hero span,
.hero b,
.hero strong,
.hero label,
.hero .small,
.hero .muted,
.hero .chip,
.hero .chip.primary,
.hero .chip.good,
.hero .chip.warn,
.hero .chip.bad,
.hero .lookup-token,
.hero .btn,
.hero .btn.secondary,
.hero .btn.ghost{
  color:#ffffff!important;
  -webkit-text-fill-color:#ffffff!important;
}
.hero p{
  color:#ffffff!important;
  opacity:1!important;
  font-weight:850!important;
}
.hero .chip,
.hero .chip.primary,
.hero .chip.good,
.hero .chip.warn,
.hero .chip.bad{
  background:rgba(255,255,255,.16)!important;
  border:2px solid rgba(255,255,255,.85)!important;
  box-shadow:0 4px 14px rgba(0,0,0,.18)!important;
}
.hero .btn.secondary,
.hero .btn.ghost{
  background:rgba(255,255,255,.18)!important;
  border:2px solid #ffffff!important;
  box-shadow:0 8px 22px rgba(0,0,0,.22)!important;
  text-shadow:0 1px 2px rgba(0,0,0,.55)!important;
}
.hero .btn.secondary:active,
.hero .btn.ghost:active{
  background:rgba(255,255,255,.26)!important;
}
.hero .lookup-token{
  background:rgba(255,255,255,.12)!important;
  text-decoration-color:#ffffff!important;
}
.hero .lookup-token:hover,
.hero .lookup-token:active{
  background:rgba(255,255,255,.28)!important;
}


.article-open-btn { width: 100%; text-align: left; }
.article-title-line { display: flex; align-items: center; gap: 10px; margin: 0 0 8px; }
.article-seq {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  min-width: 34px;
  height: 34px;
  padding: 0 8px;
  border-radius: 999px;
  background: #ffffff;
  color: #111827;
  border: 2px solid #f59e0b;
  box-shadow: 0 3px 0 rgba(0,0,0,.22);
  font-weight: 900;
  font-size: 15px;
  line-height: 1;
}
@media (prefers-color-scheme: dark) {
  .article-seq { background: #fff7ed; color: #0f172a; border-color: #facc15; }
}

/* v32: 浅蓝色主题。覆盖之前的橙紫高对比主题，整体改为清爽浅蓝，同时保留明显文字和按钮。 */
:root{
  --bg:#eaf6ff;
  --panel:#ffffff;
  --panel2:#dff3ff;
  --text:#06263d;
  --muted:#0f4c67;
  --line:#38bdf8;
  --primary:#0369a1;
  --primary2:#0ea5e9;
  --primaryText:#ffffff;
  --accent:#bae6fd;
  --accent2:#7dd3fc;
  --accentText:#06314d;
  --good:#047857;
  --warn:#b45309;
  --bad:#b91c1c;
  --shadow:0 18px 48px rgba(3,105,161,.15);
}
[data-theme="dark"]{
  --bg:#071824;
  --panel:#0b2536;
  --panel2:#10364d;
  --text:#e0f7ff;
  --muted:#a7e6ff;
  --line:#38bdf8;
  --primary:#38bdf8;
  --primary2:#0ea5e9;
  --primaryText:#001827;
  --accent:#164e63;
  --accent2:#075985;
  --accentText:#f0fbff;
  --good:#34d399;
  --warn:#fbbf24;
  --bad:#f87171;
}
html,body{background:linear-gradient(180deg,#dff3ff 0%,var(--bg) 260px)!important;color:var(--text)!important}
.app-shell{background:linear-gradient(180deg,rgba(14,165,233,.18),transparent 300px)!important}
.topbar{background:color-mix(in srgb,var(--panel) 90%,transparent)!important;border-bottom:2px solid color-mix(in srgb,var(--line) 60%,transparent)!important}
.card,.list-item,.modal,.stat,.input,textarea,select,.option{background:var(--panel)!important;color:var(--text)!important;border-color:var(--line)!important}
.card.soft,.modal-section,.question,.empty,.chip,.mini-btn,.icon-btn,.btn.secondary{background:var(--panel2)!important;color:var(--text)!important;border-color:var(--line)!important}
h1,h2,h3,h4,h5,h6,.brand h1,.article-title,.reader .paragraph,.definition-en,.list-item h4,.difficulty-row strong,.stat b,.option,.question{color:var(--text)!important;font-weight:900!important}
p,label,.small,.tiny,.muted,.card p,.brand p,.list-item p,.definition-zh,.difficulty-row p,.stat span,.skip-control{color:var(--muted)!important;font-weight:750!important}
.logo{background:linear-gradient(135deg,#0284c7,#0ea5e9)!important;color:#ffffff!important;border:2px solid #bae6fd!important;box-shadow:0 10px 24px rgba(14,165,233,.34)!important}
.btn{background:linear-gradient(135deg,#0369a1,#0ea5e9)!important;color:#ffffff!important;border:2px solid #7dd3fc!important;font-weight:950!important;text-shadow:0 1px 1px rgba(0,0,0,.28)!important;box-shadow:0 10px 26px rgba(3,105,161,.28)!important}
.btn.secondary,.mini-btn,.icon-btn{background:linear-gradient(135deg,#dff3ff,#ffffff)!important;color:#06314d!important;border:2px solid #0284c7!important;font-weight:900!important;text-shadow:none!important;box-shadow:0 6px 18px rgba(3,105,161,.14)!important}
.btn.ghost{background:#ffffff!important;color:#0369a1!important;border:2px solid #0369a1!important;box-shadow:0 6px 18px rgba(3,105,161,.12)!important}
.btn.good{background:linear-gradient(135deg,#047857,#059669)!important;color:#ecfdf5!important;border-color:#6ee7b7!important}.btn.warn{background:linear-gradient(135deg,#b45309,#d97706)!important;color:#fff7ed!important;border-color:#fde68a!important}.btn.bad{background:linear-gradient(135deg,#b91c1c,#dc2626)!important;color:#fff1f2!important;border-color:#fecaca!important}
.chip{background:#e0f2fe!important;border:2px solid #38bdf8!important;color:#06314d!important;font-weight:900!important}.chip.primary{background:#bae6fd!important;border-color:#0369a1!important;color:#075985!important}.chip.good{background:#d1fae5!important;border-color:var(--good)!important;color:var(--good)!important}.chip.warn{background:#fef3c7!important;border-color:var(--warn)!important;color:var(--warn)!important}.chip.bad{background:#fee2e2!important;border-color:var(--bad)!important;color:var(--bad)!important}
.hero{background:linear-gradient(135deg,#0284c7,#0ea5e9)!important;color:#ffffff!important;border:2px solid #bae6fd!important}.hero p,.hero .small,.hero .muted{color:#ffffff!important;font-weight:850!important;opacity:1!important}.hero .chip,.hero .chip.primary,.hero .lookup-token{color:#ffffff!important;-webkit-text-fill-color:#ffffff!important;background:rgba(255,255,255,.18)!important;border-color:rgba(255,255,255,.9)!important}.hero .btn.secondary,.hero .btn.ghost{color:#ffffff!important;-webkit-text-fill-color:#ffffff!important;background:rgba(255,255,255,.18)!important;border-color:#ffffff!important}
.nav{background:color-mix(in srgb,var(--panel) 94%,transparent)!important;border-top:2px solid var(--line)!important}.nav button{color:#0f4c67!important;font-weight:900!important}.nav button.active{background:linear-gradient(135deg,#0369a1,#0ea5e9)!important;color:#ffffff!important;border:2px solid #bae6fd!important}.nav button.active span,.nav button.active b{color:#ffffff!important;-webkit-text-fill-color:#ffffff!important}
.input,textarea,select{border-width:2px!important;background:#ffffff!important;color:#06263d!important}.input::placeholder,textarea::placeholder{color:#2c6d86!important;opacity:1!important}.input:focus,textarea:focus,select:focus{border-color:#0284c7!important;box-shadow:0 0 0 4px rgba(14,165,233,.24)!important}
.lookup-token{background:rgba(14,165,233,.14)!important;color:#0369a1!important;text-decoration-color:#0369a1!important}.lookup-token:hover,.lookup-token:active{background:#bae6fd!important;color:#06263d!important}.word:hover,.word.active{background:#bae6fd!important;color:#0369a1!important}.sentence.playing{background:#bae6fd!important;box-shadow:0 0 0 3px #0284c7!important;color:#06263d!important}
.article-seq{background:#dff3ff!important;color:#06314d!important;border-color:#0284c7!important}.deepseek-card,.custom-article-card,.audio-card{border-color:#0284c7!important}.toast{background:#06314d!important;color:#ffffff!important;border:2px solid #7dd3fc!important}

/* v33: 浅蓝背景的互补色系统。背景保持浅蓝，正文文字、标签、按钮、导航强调色改为蓝色的互补橙/棕色系，并保持高对比。 */
:root{
  --bg:#eaf6ff;
  --panel:#ffffff;
  --panel2:#edf8ff;
  --text:#7c2d12;
  --muted:#9a3412;
  --line:#fb923c;
  --primary:#ea580c;
  --primary2:#f97316;
  --primaryText:#fff7ed;
  --accent:#ffedd5;
  --accent2:#fed7aa;
  --accentText:#431407;
  --good:#047857;
  --warn:#b45309;
  --bad:#b91c1c;
  --shadow:0 18px 48px rgba(249,115,22,.16);
}
[data-theme="dark"]{
  --bg:#071824;
  --panel:#102a3a;
  --panel2:#17394b;
  --text:#fed7aa;
  --muted:#fdba74;
  --line:#fb923c;
  --primary:#fb923c;
  --primary2:#f97316;
  --primaryText:#1c0a00;
  --accent:#7c2d12;
  --accent2:#9a3412;
  --accentText:#fff7ed;
  --good:#34d399;
  --warn:#fbbf24;
  --bad:#f87171;
}
html,body{background:linear-gradient(180deg,#dff3ff 0%,var(--bg) 280px)!important;color:var(--text)!important}
.app-shell{background:linear-gradient(180deg,rgba(234,88,12,.10),transparent 300px)!important}
h1,h2,h3,h4,h5,h6,.brand h1,.article-title,.reader .paragraph,.definition-en,.list-item h4,.difficulty-row strong,.stat b,.option,.question,.card,.list-item,.modal,.stat,.input,textarea,select{color:var(--text)!important}
p,label,.small,.tiny,.muted,.card p,.brand p,.list-item p,.definition-zh,.difficulty-row p,.stat span,.skip-control{color:var(--muted)!important;font-weight:800!important}
.card,.list-item,.modal,.stat,.input,textarea,select,.option{background:var(--panel)!important;border-color:var(--line)!important}
.card.soft,.modal-section,.question,.empty,.chip,.mini-btn,.icon-btn,.btn.secondary{background:var(--panel2)!important;border-color:var(--line)!important;color:var(--text)!important}
.logo{background:linear-gradient(135deg,var(--primary),var(--primary2))!important;color:var(--primaryText)!important;border:2px solid #ffedd5!important;box-shadow:0 10px 24px rgba(249,115,22,.34)!important}
.btn{background:linear-gradient(135deg,var(--primary),var(--primary2))!important;color:var(--primaryText)!important;border:2px solid #ffedd5!important;font-weight:950!important;text-shadow:0 1px 1px rgba(0,0,0,.30)!important;box-shadow:0 10px 26px rgba(249,115,22,.30)!important}
.btn.secondary,.mini-btn,.icon-btn{background:linear-gradient(135deg,#ffedd5,#ffffff)!important;color:var(--text)!important;border:2px solid var(--primary)!important;font-weight:950!important;box-shadow:0 6px 18px rgba(249,115,22,.16)!important}
.btn.ghost{background:#ffffff!important;color:var(--primary)!important;border:2px solid var(--primary)!important;box-shadow:0 6px 18px rgba(249,115,22,.14)!important}
.btn.good{background:linear-gradient(135deg,#047857,#059669)!important;color:#ecfdf5!important;border-color:#6ee7b7!important}.btn.warn{background:linear-gradient(135deg,#b45309,#d97706)!important;color:#fff7ed!important;border-color:#fed7aa!important}.btn.bad{background:linear-gradient(135deg,#b91c1c,#dc2626)!important;color:#fff1f2!important;border-color:#fecaca!important}
.chip{background:#ffedd5!important;border:2px solid var(--primary)!important;color:var(--text)!important;font-weight:950!important}.chip.primary{background:#fed7aa!important;border-color:#c2410c!important;color:#7c2d12!important}.chip.good{background:#d1fae5!important;border-color:var(--good)!important;color:var(--good)!important}.chip.warn{background:#fef3c7!important;border-color:var(--warn)!important;color:var(--warn)!important}.chip.bad{background:#fee2e2!important;border-color:var(--bad)!important;color:var(--bad)!important}
.hero{background:linear-gradient(135deg,#0284c7,#0ea5e9)!important;color:#fff7ed!important;border:2px solid #fed7aa!important}.hero,.hero h1,.hero h2,.hero h3,.hero h4,.hero p,.hero span,.hero b,.hero strong,.hero label,.hero .small,.hero .muted,.hero .lookup-token{color:#fff7ed!important;-webkit-text-fill-color:#fff7ed!important}.hero .chip,.hero .chip.primary{color:#fff7ed!important;-webkit-text-fill-color:#fff7ed!important;background:rgba(249,115,22,.28)!important;border-color:#fed7aa!important}.hero .btn.secondary,.hero .btn.ghost{color:#fff7ed!important;-webkit-text-fill-color:#fff7ed!important;background:rgba(249,115,22,.32)!important;border:2px solid #fed7aa!important}
.nav{background:color-mix(in srgb,var(--panel) 94%,transparent)!important;border-top:2px solid var(--line)!important}.nav button{color:var(--muted)!important;font-weight:950!important}.nav button.active{background:linear-gradient(135deg,var(--primary),var(--primary2))!important;color:var(--primaryText)!important;border:2px solid #ffedd5!important}.nav button.active span,.nav button.active b{color:var(--primaryText)!important;-webkit-text-fill-color:var(--primaryText)!important}
.lookup-token,.word:hover,.word.active,.phonetic,.stat-link b,.chip.primary{color:var(--primary)!important}.lookup-token{background:rgba(249,115,22,.13);text-decoration-color:var(--primary)!important}.lookup-token:hover,.lookup-token:active{background:#fed7aa!important;color:#7c2d12!important}.sentence.playing{background:#ffedd5!important;box-shadow:0 0 0 3px var(--primary)!important;color:#7c2d12!important}
.input,textarea,select{border-width:2px!important;background:#ffffff!important;color:var(--text)!important}.input::placeholder,textarea::placeholder{color:#b45309!important;opacity:1!important}.input:focus,textarea:focus,select:focus{border-color:var(--primary)!important;box-shadow:0 0 0 4px rgba(249,115,22,.24)!important}
.difficulty-row b{background:#fed7aa!important;color:#7c2d12!important;border:2px solid var(--primary)!important}.article-seq{background:#fff7ed!important;color:#7c2d12!important;border-color:var(--primary)!important}


/* v35: 文章等级显示在序号旁；浅蓝主题背景浓度降为当前的约 15%，文字和按钮继续使用浅蓝背景的互补橙棕色。 */
:root{
  --bg:#fcfeff;
  --panel:#ffffff;
  --panel2:#fbfdff;
  --shadow:0 18px 48px rgba(249,115,22,.06);
}
[data-theme="dark"]{
  --bg:#071824;
  --panel:#102a3a;
  --panel2:#143244;
}
html,body{background:linear-gradient(180deg,#fafdff 0%,#fcfeff 280px)!important;color:var(--text)!important}
.app-shell{background:linear-gradient(180deg,rgba(14,165,233,.027),transparent 300px)!important}
.card,.list-item,.modal,.stat,.input,textarea,select,.option{background:var(--panel)!important}
.card.soft,.modal-section,.question,.empty,.chip,.mini-btn,.icon-btn,.btn.secondary{background:var(--panel2)!important}
.article-title-line{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.article-level{display:inline-flex;align-items:center;justify-content:center;min-width:48px;height:30px;padding:0 10px;border-radius:999px;background:#fed7aa!important;color:#7c2d12!important;border:2px solid #ea580c!important;font-weight:950!important;font-size:13px;line-height:1;box-shadow:0 2px 0 rgba(0,0,0,.12)}
.article-seq{min-width:34px!important}
@media (max-width:520px){.article-level{min-width:44px;height:28px;font-size:12px}.article-title-line{gap:6px}}

/* v41: 保留原导航并加入100天课程，共七栏。 */
.nav{grid-template-columns:repeat(7,minmax(0,1fr))!important}
.training-stats{margin-top:14px}
.training-sentence{font-size:clamp(21px,3vw,31px);line-height:1.65;padding:18px;border:2px solid var(--line);border-radius:18px;background:var(--panel2);overflow-wrap:anywhere}
.training-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.result-card{margin-top:14px;padding:16px;border:2px solid var(--line);border-radius:18px;background:var(--panel2)}
.score-ring{width:84px;height:84px;display:grid;place-items:center;border-radius:50%;border:8px solid var(--primary);font-size:24px;font-weight:950;background:var(--panel)}
.translation-paragraph,.bilingual-paragraph{margin-top:8px;padding:10px 12px;border-left:4px solid var(--primary);border-radius:8px;background:var(--panel2);line-height:1.75}
.last-read{outline:3px solid rgba(234,88,12,.38);outline-offset:4px;border-radius:8px}
.media-layout{display:grid;grid-template-columns:minmax(220px,.7fr) minmax(0,1.3fr);gap:14px;align-items:start}
.media-list{display:grid;gap:8px;max-height:560px;overflow:auto;padding-right:3px}
.media-list .list-item{padding:10px}
.selected-media{min-width:0}
.study-media{display:block;width:100%;max-height:440px;border-radius:18px;background:#000;margin:10px 0}
.subtitle-list{display:grid;gap:6px;max-height:360px;overflow:auto;padding:4px}
.subtitle-cue{width:100%;text-align:left;padding:10px 12px;border:1px solid var(--line);border-radius:12px;background:var(--panel);color:var(--text);cursor:pointer;line-height:1.5}
.subtitle-cue.active{background:var(--accent2)!important;border:2px solid var(--primary)!important;font-weight:900}
.file-actions{display:flex;gap:8px;flex-wrap:wrap}
.practice-history{display:grid;gap:8px}
.practice-history .list-item{padding:10px 12px}
@media(max-width:760px){
  .media-layout{grid-template-columns:1fr}
  .nav{gap:2px;padding-left:5px!important;padding-right:5px!important}
  .nav button{font-size:10px!important;min-width:0;padding-left:2px!important;padding-right:2px!important}
  .nav button b{font-size:16px}
  .training-actions .btn,.training-actions .mini-btn{flex:1 1 42%}
}
@media(max-width:520px){
  .training-stats{grid-template-columns:repeat(3,minmax(0,1fr))!important}
  .training-stats .stat{padding:9px 5px!important}
  .training-stats .stat b{font-size:20px!important}
  .training-stats .stat span{font-size:11px!important}
  .nav button{padding-top:7px!important;padding-bottom:7px!important}
  .score-ring{width:70px;height:70px;border-width:6px;font-size:20px}
}


/* v38：网页链接正文提取与旧缓存强制升级 */
.web-extract-panel {
  margin: 12px 0;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(255,255,255,.52);
}
.web-extract-panel h4 { margin: 0 0 8px; }
.web-extract-panel .small { margin: 8px 0 0; }

/* v39：学习流程、进度与听写隐藏逻辑 */
.continue-card{border:2px solid var(--primary);background:linear-gradient(135deg,var(--panel),var(--panel2))!important}
.progress-track{height:10px;margin-top:12px;border-radius:999px;background:var(--line);overflow:hidden}
.progress-track>span{display:block;height:100%;border-radius:inherit;background:var(--primary);transition:width .25s ease}
.training-sentence.target-hidden{display:grid;place-items:center;min-height:110px;border-style:dashed;color:var(--muted);font-size:16px;text-align:center;user-select:none}
.training-sentence.target-hidden span{padding:10px 16px;border-radius:999px;background:var(--panel);border:1px solid var(--line)}


/* v41：100天课程、移动端测验与课程目录 */
.course-screen{padding-bottom:112px}
.course-home-card{border:2px solid color-mix(in srgb,var(--primary) 55%,var(--line))!important;background:linear-gradient(135deg,var(--panel),color-mix(in srgb,var(--panel2) 72%,#fff7ed))!important}
.course-dashboard{background:linear-gradient(135deg,var(--panel),color-mix(in srgb,var(--panel2) 78%,#e0f2fe))!important}
.course-dashboard h2,.course-lesson h2,.course-quiz h2{margin-top:8px}
.course-stats{margin-top:14px}
.course-plan-row{margin-top:14px;align-items:end}
.course-plan-row .grow{min-width:min(280px,100%)}
.course-search{width:min(360px,100%)}
.course-day-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:9px;margin-top:14px;max-height:500px;overflow:auto;padding:3px 5px 6px 2px;overscroll-behavior:contain;scrollbar-gutter:stable}
.course-day{min-height:86px;padding:10px;border:2px solid var(--line);border-radius:15px;background:var(--panel);color:var(--text);text-align:left;display:flex;flex-direction:column;align-items:flex-start;justify-content:flex-start;gap:4px;cursor:pointer;transition:transform .15s ease,border-color .15s ease,background .15s ease}
.course-day:hover{transform:translateY(-1px);border-color:var(--primary)}
.course-day b{font-size:13px;color:var(--primary)}
.course-day span{font-weight:900;line-height:1.35}
.course-day small{color:var(--muted);line-height:1.35}
.course-day.started{border-color:#f59e0b;background:color-mix(in srgb,var(--panel) 90%,#fef3c7)!important}
.course-day.passed{border-color:#0ea5e9;background:color-mix(in srgb,var(--panel) 90%,#e0f2fe)!important}
.course-day.complete{border-color:#16a34a;background:color-mix(in srgb,var(--panel) 88%,#dcfce7)!important}
.course-day.complete b::after{content:' ✓'}
.course-day.active{outline:3px solid color-mix(in srgb,var(--primary) 35%,transparent);border-color:var(--primary);box-shadow:0 5px 16px rgba(15,23,42,.10)}
.course-lesson,.course-quiz,.course-result{scroll-margin-top:76px}
.course-section{margin-top:14px;padding:15px;border:2px solid var(--line);border-radius:17px;background:var(--panel2)}
.course-section h3{margin-bottom:8px}
.course-rule{font-size:clamp(18px,2.4vw,23px);line-height:1.7;margin:7px 0 12px}
.course-tip{margin-top:14px;padding:14px 16px;border-left:5px solid #f59e0b;border-radius:14px;background:color-mix(in srgb,var(--panel) 78%,#fef3c7);line-height:1.7}
.course-tip p{margin:5px 0 0}
.course-example{display:grid;grid-template-columns:32px minmax(0,1fr) auto;gap:10px;align-items:center;padding:10px 0;border-bottom:1px dashed var(--line)}
.course-example:last-child{border-bottom:0}
.course-example>span{width:28px;height:28px;display:grid;place-items:center;border-radius:999px;background:var(--primary);color:var(--primaryText);font-weight:950}
.course-example p{margin:0;font-size:17px;line-height:1.65}
.course-main-actions{margin-top:15px;position:sticky;bottom:82px;z-index:4;padding:10px;border:1px solid var(--line);border-radius:15px;background:color-mix(in srgb,var(--panel) 94%,transparent);backdrop-filter:blur(14px)}
.course-timer{min-width:145px;padding:10px 14px;border:2px solid var(--primary);border-radius:16px;background:var(--panel2);text-align:center}
.course-timer span{display:block;color:var(--muted);font-size:12px;font-weight:800}
.course-timer b{display:block;margin-top:3px;font-size:26px;font-variant-numeric:tabular-nums;color:var(--primary)}
.course-question{margin:15px 0;padding:16px;border:2px solid var(--line);border-radius:18px;background:var(--panel2)}
.course-question h3{line-height:1.55;margin-bottom:12px}
.course-question .option{display:flex;align-items:flex-start;gap:9px;margin:8px 0;padding:12px;border:2px solid var(--line);border-radius:14px;cursor:pointer;line-height:1.55}
.course-question .option:hover{border-color:var(--primary)}
.course-question .option.selected{border-color:var(--primary);background:color-mix(in srgb,var(--panel) 78%,#dbeafe)!important;box-shadow:0 0 0 2px color-mix(in srgb,var(--primary) 18%,transparent)}
.course-question .option input{margin-top:5px;flex:0 0 auto}
.course-question-map{display:grid;grid-template-columns:repeat(10,minmax(0,1fr));gap:7px;margin:14px 0}
.course-question-map button{min-height:38px;border:1px solid var(--line);border-radius:10px;background:var(--panel);color:var(--text);font-weight:900;cursor:pointer}
.course-question-map button.answered{background:color-mix(in srgb,var(--panel) 74%,#dcfce7);border-color:#16a34a}
.course-question-map button.active{background:var(--primary);border-color:var(--primary);color:var(--primaryText);outline:3px solid color-mix(in srgb,var(--primary) 20%,transparent)}
.course-score{padding:20px;border:3px solid var(--line);border-radius:20px;text-align:center;background:var(--panel2);margin-bottom:14px}
.course-score>span{display:block;font-weight:900;color:var(--muted)}
.course-score>b{display:block;font-size:64px;line-height:1.05;margin:7px 0;font-variant-numeric:tabular-nums}
.course-score.passed{border-color:#16a34a;background:color-mix(in srgb,var(--panel) 88%,#dcfce7)!important}
.course-score.failed{border-color:#ef4444;background:color-mix(in srgb,var(--panel) 90%,#fee2e2)!important}
.course-wrong{margin:9px 0;padding:11px 13px;border:1px solid var(--line);border-radius:13px;background:var(--panel)}
.course-wrong summary{cursor:pointer;font-weight:900;line-height:1.5}
.course-wrong p{line-height:1.65}
[data-theme="dark"] .course-tip,[data-theme="dark"] .course-day.started,[data-theme="dark"] .course-day.passed,[data-theme="dark"] .course-day.complete,[data-theme="dark"] .course-question .option.selected,[data-theme="dark"] .course-score.passed,[data-theme="dark"] .course-score.failed{background:var(--panel2)!important}

@media(max-width:900px){
  .course-day-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
}
@media(max-width:700px){
  .course-day-grid{grid-template-columns:repeat(3,minmax(0,1fr));max-height:460px}
  .course-question-map{grid-template-columns:repeat(6,minmax(0,1fr))}
  .course-main-actions{position:static}
}
@media(max-width:520px){
  .nav{grid-template-columns:repeat(7,minmax(0,1fr))!important;gap:1px!important;padding-left:3px!important;padding-right:3px!important}
  .nav button{font-size:9px!important;gap:2px!important;padding:6px 0!important;letter-spacing:-.2px}
  .nav button b{font-size:15px!important}
  .nav button span{white-space:nowrap}
  .course-day-grid{grid-template-columns:repeat(2,minmax(0,1fr));max-height:430px;gap:7px}
  .course-day{min-height:78px;padding:9px}
  .course-day span{font-size:13px}
  .course-section{padding:12px}
  .course-example{grid-template-columns:28px minmax(0,1fr);align-items:start}
  .course-example .mini-btn{grid-column:2;width:max-content}
  .course-timer{width:100%;min-width:0}
  .course-question{padding:12px}
  .course-question .option{padding:11px 9px}
  .course-question-map{grid-template-columns:repeat(5,minmax(0,1fr));gap:6px}
  .course-score>b{font-size:52px}
}

/* v42: English Thinking direct-learning engine */
.nav{grid-template-columns:repeat(8,minmax(0,1fr))!important}
.nav button{min-width:0;padding-left:1px!important;padding-right:1px!important}
.nav button span{font-size:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}
.thinking-screen{padding-bottom:118px}
.thinking-home-card{border:2px solid color-mix(in srgb,var(--primary) 55%,var(--line))!important;background:linear-gradient(135deg,var(--panel),color-mix(in srgb,var(--panel2) 76%,#e0f2fe))!important}
.thinking-dashboard{background:linear-gradient(135deg,var(--panel),color-mix(in srgb,var(--panel2) 82%,#dcfce7))!important}
.thinking-plan-row{margin-top:14px;align-items:end}
.thinking-plan-row .grow{min-width:min(280px,100%)}
.thinking-search{width:min(360px,100%)}
.thinking-phase-tabs{display:flex;gap:8px;overflow-x:auto;padding:10px 2px 3px;scrollbar-width:thin}
.thinking-phase-tabs .active{background:var(--primary)!important;color:var(--primaryText)!important;border-color:var(--primary)!important}
.thinking-day-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:9px;margin-top:12px;max-height:480px;overflow:auto;padding:3px 5px 6px 2px;overscroll-behavior:contain;scrollbar-gutter:stable}
.thinking-day{min-height:86px;padding:10px;border:2px solid var(--line);border-radius:15px;background:var(--panel);color:var(--text);text-align:left;display:flex;flex-direction:column;align-items:flex-start;gap:4px;cursor:pointer;transition:transform .15s ease,border-color .15s ease,background .15s ease}
.thinking-day:hover{transform:translateY(-1px);border-color:var(--primary)}
.thinking-day b{font-size:13px;color:var(--primary)}
.thinking-day span{font-weight:900;line-height:1.35}
.thinking-day small{color:var(--muted);line-height:1.35}
.thinking-day.started{border-color:#f59e0b;background:color-mix(in srgb,var(--panel) 90%,#fef3c7)!important}
.thinking-day.complete{border-color:#16a34a;background:color-mix(in srgb,var(--panel) 88%,#dcfce7)!important}
.thinking-day.complete b::after{content:' ✓'}
.thinking-day.due{box-shadow:inset 0 0 0 3px #f97316}
.thinking-day.active{outline:3px solid color-mix(in srgb,var(--primary) 35%,transparent);border-color:var(--primary);box-shadow:0 5px 16px rgba(15,23,42,.10)}
.thinking-lesson{scroll-margin-top:76px}
.thinking-english-only{font-size:17px;line-height:1.65}
.thinking-progress{margin:14px 0}
.thinking-step-tabs{display:grid;grid-template-columns:repeat(11,minmax(92px,1fr));gap:7px;overflow-x:auto;padding:4px 2px 9px;scrollbar-width:thin}
.thinking-step-tabs button{min-height:66px;padding:8px 6px;border:2px solid var(--line);border-radius:13px;background:var(--panel2);color:var(--text);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;cursor:pointer}
.thinking-step-tabs button span{width:22px;height:22px;border-radius:999px;display:grid;place-items:center;background:var(--panel);border:1px solid var(--line);font-size:11px;font-weight:900}
.thinking-step-tabs button b{font-size:10px;line-height:1.15;text-align:center}
.thinking-step-tabs button.active{background:var(--primary)!important;color:var(--primaryText)!important;border-color:var(--primary)!important}
.thinking-step-tabs button.done:not(.active){border-color:#16a34a;background:color-mix(in srgb,var(--panel) 88%,#dcfce7)!important}
.thinking-step-tabs button.done span::after{content:'✓';font-size:11px}
.thinking-step-tabs button.done span{font-size:0;background:#16a34a;color:#fff;border-color:#16a34a}
.thinking-panel{margin-top:6px;padding:clamp(14px,2.5vw,24px);border:2px solid var(--line);border-radius:20px;background:var(--panel2);min-height:370px}
.thinking-instruction{text-align:center;margin-bottom:16px}
.thinking-instruction>b{display:inline-block;padding:6px 13px;border-radius:999px;background:var(--primary);color:var(--primaryText);font-size:13px;letter-spacing:.08em}
.thinking-instruction p{font-size:17px;line-height:1.55;margin:9px 0 0;color:var(--text)!important;font-weight:750}
.thinking-scenes{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;max-width:720px;margin:12px auto}
.thinking-scene{min-height:138px;border:3px solid var(--line);border-radius:22px;background:var(--panel);color:var(--text);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;cursor:pointer;box-shadow:0 5px 15px rgba(15,23,42,.06)}
.thinking-scene span{font-size:clamp(54px,9vw,88px);line-height:1}
.thinking-scene small{font-size:15px;font-weight:900;color:var(--text)}
.thinking-scene.seen{border-color:#0ea5e9;background:color-mix(in srgb,var(--panel) 86%,#e0f2fe)!important}
.thinking-scene.correct{border-color:#16a34a;background:color-mix(in srgb,var(--panel) 84%,#dcfce7)!important;box-shadow:0 0 0 4px color-mix(in srgb,#16a34a 18%,transparent)}
.thinking-scenes.compact .thinking-scene{min-height:105px}
.thinking-scenes.compact .thinking-scene span{font-size:56px}
.thinking-status{text-align:center;margin:12px 0 0;color:var(--muted);font-weight:800;line-height:1.55}
.thinking-audio-stage{text-align:center;padding:18px;border:2px dashed var(--line);border-radius:20px;background:var(--panel)}
.sound-wave{font-size:clamp(38px,8vw,72px);letter-spacing:.12em;color:var(--primary);margin:10px 0 22px;white-space:nowrap;overflow:hidden}
.thinking-hint{margin:14px auto 0;padding:10px 14px;border-radius:13px;background:color-mix(in srgb,var(--panel2) 80%,#fef3c7);font-weight:900;font-size:18px;max-width:620px}
.thinking-parts{display:flex;flex-wrap:wrap;justify-content:center;gap:9px;margin:16px 0}
.thinking-parts .done{border-color:#16a34a!important;background:color-mix(in srgb,var(--panel) 82%,#dcfce7)!important}
.thinking-reading{max-width:820px;margin:0 auto 16px;padding:14px;border:2px solid var(--line);border-radius:18px;background:var(--panel)}
.thinking-reading p{display:grid;grid-template-columns:30px 1fr;gap:10px;align-items:start;margin:7px 0;font-size:clamp(18px,2.6vw,23px);line-height:1.7;color:var(--text)!important}
.thinking-reading p span{width:26px;height:26px;border-radius:999px;display:grid;place-items:center;background:var(--primary);color:var(--primaryText);font-size:12px;font-weight:900;margin-top:5px}
.thinking-word-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:14px 0}
.thinking-word-grid article{padding:14px;border:2px solid var(--line);border-radius:16px;background:var(--panel)}
.thinking-word-grid article>span{font-size:34px;display:block}
.thinking-word-grid article>b{display:block;margin:6px 0;font-size:18px}
.thinking-word-grid article p{line-height:1.55;color:var(--text)!important}
.thinking-target,.thinking-prompt{max-width:760px;margin:12px auto;padding:18px;border:2px solid var(--line);border-radius:20px;background:var(--panel);text-align:center}
.thinking-target p{font-size:clamp(23px,4vw,36px);line-height:1.55;font-weight:900;color:var(--text)!important}
.thinking-prompt>span{display:block;font-size:64px}
.thinking-prompt h3{font-size:clamp(21px,3vw,30px);line-height:1.45;margin:8px 0;color:var(--text)}
.thinking-fallback{max-width:760px;margin:18px auto 0;padding:12px;border:1px solid var(--line);border-radius:14px;background:var(--panel)}
.thinking-fallback label{display:block;margin-bottom:7px}
.thinking-build-line{min-height:82px;padding:12px;border:3px dashed var(--primary);border-radius:18px;background:var(--panel);display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:14px 0}
.thinking-build-line>span{color:var(--muted);font-weight:800}
.thinking-build-line button,.thinking-token-bank button{padding:10px 13px;border:2px solid var(--line);border-radius:12px;background:var(--panel2);color:var(--text);font-weight:900;font-size:16px;cursor:pointer}
.thinking-build-line button{border-color:var(--primary);background:color-mix(in srgb,var(--panel) 82%,#dbeafe)}
.thinking-token-bank{display:flex;flex-wrap:wrap;gap:9px;padding:14px;border:1px solid var(--line);border-radius:16px;background:var(--panel);margin-bottom:14px}
.thinking-writing{min-height:145px!important;font-size:18px!important;line-height:1.7!important;background:var(--panel)!important}
.thinking-review-note{max-width:760px;margin:0 auto 14px;padding:14px 16px;border-left:5px solid #f59e0b;border-radius:14px;background:color-mix(in srgb,var(--panel) 82%,#fef3c7)}
.thinking-review-note p{margin:5px 0 0;color:var(--text)!important}
.thinking-model-answer{font-size:22px;line-height:1.65;font-weight:850;color:var(--text)!important}
.thinking-step-nav{position:sticky;bottom:85px;z-index:5;margin-top:14px;padding:10px;border:2px solid var(--line);border-radius:16px;background:color-mix(in srgb,var(--panel) 95%,transparent);backdrop-filter:blur(15px);display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:12px}
.thinking-step-nav>div{text-align:center}
.thinking-step-nav>div b,.thinking-step-nav>div small{display:block}
.thinking-step-nav>div small{color:var(--muted);margin-top:3px}
[data-theme="dark"] .thinking-day.started,[data-theme="dark"] .thinking-day.complete,[data-theme="dark"] .thinking-step-tabs button.done,[data-theme="dark"] .thinking-scene.seen,[data-theme="dark"] .thinking-scene.correct,[data-theme="dark"] .thinking-review-note,[data-theme="dark"] .thinking-hint{background:var(--panel2)!important}
@media(max-width:980px){
  .thinking-day-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
  .thinking-word-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:700px){
  .thinking-day-grid{grid-template-columns:repeat(3,minmax(0,1fr));max-height:440px}
  .thinking-scenes{grid-template-columns:repeat(2,minmax(0,1fr))}
  .thinking-scene{min-height:125px}
  .thinking-step-nav{position:static;grid-template-columns:1fr 1fr}
  .thinking-step-nav>div{grid-column:1/-1;grid-row:1}
}
@media(max-width:520px){
  .nav button span{font-size:9px}
  .nav button b{font-size:16px!important}
  .thinking-day-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;max-height:420px}
  .thinking-day{min-height:78px;padding:8px}
  .thinking-panel{padding:12px;min-height:330px}
  .thinking-scenes{gap:8px}
  .thinking-scene{min-height:112px;border-radius:17px}
  .thinking-scene span{font-size:54px}
  .thinking-word-grid{grid-template-columns:1fr}
  .thinking-reading p{font-size:18px}
  .sound-wave{letter-spacing:.04em;font-size:36px}
}

/* v42 active reading comprehension */
.thinking-reading-check{margin:14px 0;padding:14px;border:1px solid var(--line);border-radius:16px;background:var(--surface-soft,#f7fbff)}
.thinking-reading-check h3{margin:0 0 10px;font-size:1rem}
.thinking-reading-option{display:block;width:100%;margin:8px 0;padding:11px 13px;text-align:left;border:1px solid var(--line);border-radius:12px;background:var(--surface,#fff);color:var(--text);font:inherit;line-height:1.45;cursor:pointer}
.thinking-reading-option:hover,.thinking-reading-option:focus-visible{border-color:var(--primary);outline:none}
.thinking-reading-option.correct{border-color:#2b9b62;background:rgba(43,155,98,.12)}