:root{--bg:#f6f7fb;--card:#fff;--fg:#1f2430;--mut:#7a8194;--pri:#16a34a;--pri2:#e7f6ec;--line:#e6e8ef;--hl:#fff7d6}
.dark{--bg:#14161c;--card:#1d2028;--fg:#e8eaf0;--mut:#9aa1b2;--pri:#22c55e;--pri2:#1d3a28;--line:#2c303a;--hl:#3a3420}
*{box-sizing:border-box}body{margin:0;font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--fg)}
header{display:flex;align-items:center;gap:16px;padding:10px 20px;background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.logo{font-weight:700;font-size:18px;color:var(--fg);text-decoration:none}nav{display:flex;gap:4px;flex:1}nav a{padding:6px 12px;border-radius:8px;color:var(--mut);text-decoration:none}nav a.on,nav a:hover{background:var(--pri2);color:var(--pri)}
button,.btn{border:1px solid var(--line);background:var(--card);color:var(--fg);border-radius:8px;padding:6px 12px;cursor:pointer;font-size:14px}
button.pri{background:var(--pri);color:#fff;border-color:var(--pri)}button.on{background:var(--pri2);color:var(--pri);border-color:var(--pri)}
input,select,textarea{border:1px solid var(--line);background:var(--card);color:var(--fg);border-radius:8px;padding:8px 10px;font-size:14px}
main{max-width:1280px;margin:0 auto;padding:20px}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px}
.auth{max-width:380px;margin:60px auto}.auth input{width:100%;margin:6px 0}.auth button{width:100%;margin-top:10px}.mut{color:var(--mut);font-size:13px}
.filters{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:14px}.tabs{display:flex;gap:6px;margin-bottom:12px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.vc{cursor:pointer;padding:0;overflow:hidden}.vc img{width:100%;aspect-ratio:16/9;object-fit:cover;display:block}.vc .b{padding:10px 12px}
.vc h4{margin:0 0 6px;font-size:15px}.tag{display:inline-block;font-size:12px;padding:2px 8px;border-radius:10px;background:var(--pri2);color:var(--pri);margin-right:4px}
.detail{display:grid;grid-template-columns:1.1fr 1fr;gap:16px}@media(max-width:900px){.detail{grid-template-columns:1fr}}
.player{position:relative;aspect-ratio:16/9;background:#000;border-radius:14px;overflow:hidden}.player>div,.player iframe{width:100%;height:100%}
.counter{position:absolute;right:10px;top:10px;background:#2563eb;color:#fff;border-radius:12px;padding:2px 10px;font-size:13px;z-index:2}
.tool{display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin-bottom:10px}.subs{height:calc(100vh - 220px);overflow:auto;padding-right:4px}
.s{border:1px solid var(--line);border-radius:12px;padding:10px 12px;margin-bottom:8px;background:var(--card)}.s.cur{background:var(--hl);border-color:#f0c040}
.s .en{font-weight:600;line-height:1.6}.s .zh{color:var(--mut);margin-top:4px}.s .ops{display:flex;gap:4px;margin-top:6px;align-items:center}.s .ops button{padding:2px 8px;font-size:12px}
.w{cursor:pointer;border-radius:4px}.w:hover{background:var(--pri2);color:var(--pri)}.lookup .w{text-decoration:underline dotted}
.hide-en .en,.hide-zh .zh{display:none}.ph{color:#c2410c}
.pop{position:fixed;z-index:20;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px;width:320px;box-shadow:0 8px 30px #0003}
.hidden{display:none!important}.toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%);background:#333;color:#fff;padding:8px 16px;border-radius:8px;z-index:30}
.flash{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px}.flash .card{padding:12px}
.ai{display:grid;grid-template-columns:200px 1fr;gap:16px}.ai .modes button{display:block;width:100%;margin-bottom:6px;text-align:left}
.chat{height:60vh;overflow:auto;display:flex;flex-direction:column;gap:8px}.msg{padding:10px 12px;border-radius:10px;max-width:85%;white-space:pre-wrap}.msg.u{align-self:flex-end;background:var(--pri2)}.msg.a{background:var(--bg)}
table{border-collapse:collapse;width:100%}td,th{border-bottom:1px solid var(--line);padding:6px;text-align:left;font-size:13px}
.blank{border:none;border-bottom:2px solid var(--pri);width:90px;border-radius:0;padding:2px}.ok{color:var(--pri)}.bad{color:#dc2626}

header{justify-content:space-between;padding:14px 28px;background:color-mix(in srgb,var(--card) 85%,transparent);backdrop-filter:blur(8px);box-shadow:0 2px 14px #0000000d;border:none}
.logo{display:flex;gap:10px;align-items:center}.logo .lg{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,#a7e3b4,#5fbf7a);display:grid;place-items:center;color:#fff;font-weight:800}
.logo b{display:block;font-size:17px}.logo small{display:block;color:var(--mut);font-size:12px;font-weight:400}
nav{flex:0 1 auto;background:var(--card);border-radius:30px;padding:5px;box-shadow:0 4px 18px #00000012}nav a{border-radius:22px;padding:8px 18px;font-weight:600;font-size:14px}nav a.on{background:var(--bg);color:var(--fg)}
.ghost{border:none;background:none;font-weight:600}
body{background:linear-gradient(180deg,var(--bg),color-mix(in srgb,var(--bg) 92%,#e8dccb))}
.hero{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:1000px;margin:20px auto}@media(max-width:800px){.hero{grid-template-columns:1fr}}
.hc{border-radius:24px;overflow:hidden;background:var(--card);box-shadow:0 10px 30px #0000001a;display:flex;flex-direction:column}
.hc .top{padding:22px;min-height:300px;color:#fff}.hc.a .top{background:radial-gradient(circle at 30% 20%,#4a3415,#1d1710)}.hc.b .top{background:radial-gradient(circle at 70% 10%,#2b3f8a,#0f1a3a)}
.pill{display:inline-block;border:1px solid #ffffff40;border-radius:20px;padding:5px 12px;font-size:12px;letter-spacing:1px;font-weight:700;background:#ffffff14}
.mock{margin-top:22px;background:#ffffff12;border:1px solid #ffffff25;border-radius:18px;padding:16px}.mock .ln{background:#ffffff1c;border-radius:12px;padding:10px 12px;margin:8px 0;font-size:13px}
.mock .bar{height:6px;border-radius:3px;background:#ffffff30;margin-top:14px}.mock .bar i{display:block;height:100%;width:58%;border-radius:3px;background:#f2b24c}
.mock .me{background:#5b7cf2;margin-left:20%}.hc .bot{padding:22px}.hc h2{font-size:30px;margin:0 0 8px;font-family:"Songti SC","Noto Serif SC",serif}
.chips span{display:inline-block;border:1px solid var(--line);border-radius:16px;padding:4px 12px;font-size:12px;margin:8px 6px 0 0}
.go{display:flex;justify-content:space-between;align-items:center;margin-top:18px;gap:10px}.go button{border-radius:24px;padding:12px 22px;font-weight:700;color:#fff;border:none;box-shadow:0 6px 16px #0003}
.lib{display:grid;grid-template-columns:270px 1fr;gap:22px}@media(max-width:800px){.lib{grid-template-columns:1fr}}
.side{border-radius:20px;align-self:start;position:sticky;top:90px}.side h3{margin-top:0}.side .tabs button{border-radius:20px;padding:7px 16px}.side .tabs button.on{background:#1f2430;color:#fff;border-color:#1f2430}
.side label{display:flex;align-items:center;gap:6px;border:1px solid var(--line);border-radius:12px;padding:6px 10px;margin:10px 0;font-size:12px;color:var(--mut)}.side select{border:none;flex:1;font-weight:700;font-size:14px}
.subnav{display:flex;gap:8px;margin-bottom:16px}.subnav a{padding:8px 18px;border-radius:22px;background:var(--card);color:var(--fg);text-decoration:none;box-shadow:0 2px 8px #0000000d}.subnav a.on{background:#1f2430;color:#fff}
.vc{border-radius:16px;position:relative}.vc .du{position:absolute;right:8px;top:calc((100% - 0px)*0);}.thumb{position:relative}.thumb .du{position:absolute;right:8px;bottom:8px;top:auto;background:#000a;color:#fff;font-size:12px;border-radius:8px;padding:2px 7px}
.thumb .ht{position:absolute;right:8px;top:8px;width:30px;height:30px;border-radius:50%;background:#0004;color:#fff;display:grid;place-items:center;border:1px solid #fff8}
.vc .ds{font-size:13px;color:var(--mut);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:4px 0 8px}.lv{display:inline-block;background:#fff4e0;color:#b45309;border-radius:8px;padding:2px 8px;font-size:12px;margin-top:8px}
.aihero{display:flex;align-items:center;gap:30px;border-radius:24px;padding:26px 40px}.aihero .ic{width:110px;height:110px;border-radius:50%;background:radial-gradient(circle,#fde3c8,#f2a86b);display:grid;place-items:center;font-size:46px}
.aihero h1{margin:0}.aihero p{font-size:20px;color:var(--mut);margin:6px 0 0}
.mgrid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.mc{display:flex;gap:16px;align-items:center;cursor:pointer;border-radius:18px}.mc.on{border-color:#7c8cf8;box-shadow:0 0 0 2px #7c8cf833}
.mc .ic{width:56px;height:56px;border-radius:14px;display:grid;place-items:center;font-size:22px;font-weight:800;flex:none}.mc b{font-size:17px}.mc p{margin:4px 0 0;color:var(--mut);font-size:13px}
.prof{display:grid;grid-template-columns:1fr 1fr;gap:22px}@media(max-width:800px){.prof{grid-template-columns:1fr}}.prof>.card{border-radius:24px;padding:24px}.prof h1{margin:0 0 6px;font-family:"Songti SC","Noto Serif SC",serif}
.fld{border:1px solid var(--line);border-radius:14px;padding:12px 14px;margin:10px 0}.fld b{display:block;margin-bottom:4px}.prof input{width:100%;margin:4px 0 10px;padding:12px}.dark-btn{background:#1f2430;color:#fff;border-radius:22px;padding:11px 24px;border:none}

/* 逐词高亮：浅黄色圆角块，逐词跳动，无过渡 */
.s .en .w{border-radius:6px;padding:0 2px;margin:0 -2px}
.s.cur{border-color:var(--line);border-left:4px solid #3b82f6;background:var(--card)}
.s.cur .en .w.now,.live .w.now{background:#FDE68A;color:#1f2430;box-shadow:0 0 0 2px #FDE68A}
.live{margin-top:10px;background:#111827;color:#fff;border-radius:14px;padding:14px 18px;font-size:20px;font-weight:600;line-height:1.6;min-height:60px}
.live .w{border-radius:6px;padding:0 2px;margin:0 -2px}.live .zh{font-size:14px;color:#cbd5e1;font-weight:400;margin-top:4px}
.vk{color:#0f766e;background:#ccfbf1;border-radius:6px;padding:0 4px}
.player video{width:100%;height:100%;background:#000;display:block}