:root{color-scheme:dark;--bg:#101211;--panel:#191c19;--ink:#f2f3ec;--muted:#a3a89f;--line:#343932;--accent:#d4f77d;--font:Inter,"Helvetica Neue","PingFang SC","Microsoft YaHei",Arial,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{opacity:.4;cursor:not-allowed}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:4px}button,input,select,textarea{color:var(--ink)}input,select,textarea{background:var(--panel);border:1px solid var(--line);border-radius:3px;min-height:44px;padding:10px 14px;max-width:100%}input::placeholder{color:var(--muted)}img{display:block;max-width:100%}h1,h2,h3,p{margin:0}button{border:0}.wrap{width:min(1440px,calc(100% - 112px));margin-inline:auto}.muted{color:var(--muted)}.eyebrow{font-size:12px;letter-spacing:2px;font-weight:500;color:var(--muted)}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.skip-link{position:fixed;top:-100px;padding:12px;background:var(--accent);color:var(--bg);z-index:200}.skip-link:focus{top:4px}.topbar{position:sticky;top:0;z-index:40;background:rgba(16,18,17,.94);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.topbar-in{height:88px;display:flex;align-items:center;justify-content:space-between;gap:24px}.logo{display:flex;align-items:center;gap:20px}.wordmark{font-weight:900;font-size:27px;letter-spacing:-1.5px;white-space:nowrap}.wordmark>span,.footer-logo span{color:var(--accent)}.logo-caption{font-family:monospace;font-size:12px;letter-spacing:1.5px;max-width:90px;line-height:1.35}.nav{display:flex;gap:36px;height:100%;align-items:center}.nav a{height:100%;display:flex;align-items:center;position:relative;font-size:14px;color:var(--muted)}.nav a:hover,.nav a.active{color:var(--ink)}.nav a.active:after{content:"";position:absolute;bottom:19px;left:calc(50% - 2px);width:4px;height:4px;background:var(--accent);border-radius:50%}.header-link{font-size:14px}.hero{padding-top:38px}.hero>.eyebrow{display:flex;align-items:center;gap:10px}.live-dot{display:inline-block;width:6px;height:6px;background:var(--accent);border-radius:50%}.hero-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin:22px 0 32px}.hero h1{font-size:clamp(40px,4.7vw,72px);font-weight:700;letter-spacing:-3px;line-height:1.2}.hero h1 span{color:var(--accent)}.hero-note{display:flex;gap:20px;padding-bottom:6px}.hero-note p{font-size:14px;line-height:1.9;color:var(--muted)}.small-cross{color:var(--accent);font-size:30px;font-weight:200}.feature{display:block;height:clamp(320px,34vw,520px);position:relative;overflow:hidden;background:var(--panel)}.feature-image{width:100%;height:100%;object-fit:cover;object-position:50% 42%;transition:transform 1s cubic-bezier(.2,.7,.3,1)}.feature:hover .feature-image{transform:scale(1.025)}.feature:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,#0003,transparent 40%,#000d)}.feature-top,.feature-bottom{position:absolute;left:32px;right:32px;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:24px}.feature-top{top:26px}.feature-tag{border:1px solid #ffffff70;border-radius:2px;padding:4px 12px;font-size:12px;backdrop-filter:blur(12px);background:#0004}.feature-number{font:12px monospace;letter-spacing:2px;color:white}.feature-bottom{bottom:30px;align-items:flex-end}.feature-bottom h2{font-size:clamp(20px,2.3vw,32px);font-weight:500;margin-top:8px;max-width:820px;line-height:1.35}.feature-bottom .eyebrow{color:#dfdfd8}.feature-play{display:flex;align-items:center;gap:18px;flex-shrink:0}.feature-play>span{display:grid;place-items:center;width:60px;height:60px;border:1px solid #ffffff80;border-radius:50%;font-size:28px;transition:.2s}.feature-play small{font-size:14px}.feature:hover .feature-play>span{color:var(--bg);background:var(--accent);border-color:var(--accent)}.archive-strip{min-height:102px;display:flex;gap:32px;align-items:center;border-bottom:1px solid var(--line)}.archive-strip>div{display:flex;align-items:baseline;gap:9px}.archive-strip strong{font-size:30px;font-weight:400;font-variant-numeric:tabular-nums;letter-spacing:-1px}.archive-strip span{font-size:12px;color:var(--muted)}.archive-date{margin-left:auto}.button{display:inline-flex;gap:16px;align-items:center;justify-content:center;border:1px solid var(--line);background:transparent;padding:12px 22px;font-size:14px;min-height:44px;border-radius:2px}.button:hover{border-color:var(--ink)}.button.light{color:var(--bg);background:var(--accent);border-color:var(--accent)}.button.light:hover{background:#e1ffad}.button.danger{border-color:#cc8b7e;color:#ffb8aa}.section{padding-block:76px}.section-tight{padding-bottom:80px}.section-head{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:30px}.section-label{display:flex;gap:20px;align-items:center}.section-index{font:12px monospace;color:var(--accent)}.section-label h2{font-size:28px;font-weight:500;letter-spacing:-1px}.section-label .eyebrow{margin-left:8px}.text-link{font-size:14px;display:inline-flex;align-items:center;gap:20px}.text-link:hover{color:var(--accent)}.home-controls{display:flex;gap:24px;align-items:center;justify-content:space-between;margin-bottom:26px}.tabs{display:flex;gap:28px}.tabs button{background:none;color:var(--muted);padding:10px 0;font-size:14px;border-bottom:1px solid transparent;min-height:44px}.tabs button.active{color:var(--ink);border-color:var(--accent)}.home-search{display:flex;align-items:center;border-bottom:1px solid var(--line);gap:12px;width:320px}.home-search input{background:none;border:0;padding:9px 0;min-width:0;width:100%;font-size:14px}.home-search button{background:none;color:var(--muted);padding:10px;font-size:20px}.home-search>span,.search-field>span{font-size:26px;color:var(--muted)}.video-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:38px 24px}.cover{aspect-ratio:16/9;position:relative;overflow:hidden;background:var(--panel)}.cover img{width:100%;height:100%;object-fit:cover;transition:transform .55s,filter .55s}.cover-link:hover img{transform:scale(1.035);filter:brightness(.8)}.duration{position:absolute;right:8px;bottom:8px;padding:1px 6px;font:12px/1.8 monospace;background:#000b;border-radius:2px}.play-icon{position:absolute;top:50%;left:50%;transform:translate(-50%,-30%);opacity:0;font-size:28px;transition:.25s}.cover-link:hover .play-icon{opacity:1;transform:translate(-50%,-50%)}.video-meta{display:flex;gap:12px;justify-content:space-between;color:var(--muted);font-size:12px;margin:15px 0 8px}.video-meta span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.video-meta span:last-child{flex-shrink:0;font-variant-numeric:tabular-nums}.vcard h3{font-size:16px;font-weight:500;line-height:1.65;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:52px}.vcard h3 a:hover{color:var(--accent)}.video-bottom{font-size:12px;color:var(--muted);display:flex;justify-content:space-between;gap:12px;margin-top:10px}.video-bottom a:hover{color:var(--accent)}.series-section{background:#191c18}.series-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.series-card{position:relative;aspect-ratio:2.15;overflow:hidden;background:#222}.series-card>img{width:100%;height:100%;object-fit:cover;filter:brightness(.48) saturate(.7);transition:.6s}.series-card:hover>img{transform:scale(1.035);filter:brightness(.66) saturate(1)}.series-card:after{content:"";position:absolute;inset:0;background:linear-gradient(transparent,#0009)}.series-top,.series-bottom{position:absolute;z-index:1;left:26px;right:26px;display:flex;justify-content:space-between;align-items:center;gap:16px}.series-top{top:22px;font-size:12px}.series-top>span:first-child{font-family:monospace}.series-bottom{bottom:24px}.series-bottom h3{font-size:26px;font-weight:500;line-height:1.4}.circle-arrow{display:grid;place-items:center;width:40px;height:40px;border:1px solid #ffffff70;border-radius:50%;flex-shrink:0;font-size:22px}.people-intro{border-top:1px solid var(--line);padding:55px 0 0;display:flex;align-items:center;justify-content:space-between;gap:36px}.outline-word{font-size:clamp(56px,10vw,150px);line-height:1;font-weight:800;letter-spacing:-7px;color:var(--panel);-webkit-text-stroke:1px #68715f}.people-intro h3{font-size:22px;font-weight:400}.people-intro p{color:var(--muted);font-size:14px;margin:12px 0 22px}.people-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:24px}.portrait{aspect-ratio:4/5;background:var(--panel);position:relative;overflow:hidden;display:grid;place-items:center}.portrait>img{height:100%;width:100%;object-fit:cover;filter:saturate(.8);transition:.5s}.person-card:hover img{transform:scale(1.04);filter:saturate(1)}.person-caption{margin-top:14px;display:flex;justify-content:space-between;align-items:baseline;gap:8px}.person-caption h3{font-size:16px;font-weight:500}.person-caption span{font-size:12px;color:var(--muted)}.person-card>p{font-size:14px;margin-top:8px}.page-title{padding:60px 0 44px}.page-title h1{font-size:clamp(32px,4.5vw,64px);line-height:1.35;letter-spacing:-2px;font-weight:500;margin:18px 0}.page-title p{color:var(--muted);font-size:14px}.collection{display:grid;grid-template-columns:215px minmax(0,1fr);gap:42px;padding-bottom:80px}.collection-sidebar{border-top:1px solid var(--line);padding-top:24px}.category-filters{margin-top:18px;display:flex;flex-direction:column;gap:4px}.category-filters button{display:flex;align-items:center;text-align:left;justify-content:space-between;gap:8px;font-size:14px;line-height:1.6;padding:11px 12px;background:none;color:var(--muted);border-radius:2px}.category-filters button span{font-size:12px}.category-filters button.selected{color:var(--accent);background:#d4f77d0d}.category-filters button:hover{color:var(--ink);background:var(--panel)}.collection-toolbar{display:flex;gap:16px;scroll-margin-top:110px}.search-field{border:1px solid var(--line);display:flex;align-items:center;padding-left:14px;flex:1;min-width:0}.search-field input{width:100%;border:0;background:none;min-width:0;font-size:14px}.collection-toolbar select{font-size:14px}.result-info{font-size:12px;color:var(--muted);margin:22px 0}.video-grid.compact{grid-template-columns:repeat(3,minmax(0,1fr));gap:32px 20px}.pagination{margin-top:42px;display:flex;align-items:center;justify-content:center;gap:28px}.pagination>span{font:14px monospace;color:var(--muted)}.empty{min-height:300px;padding:70px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px}.empty h1,.empty h2{font-size:26px;font-weight:500}.empty p{color:var(--muted);font-size:16px}.editorial-empty{border-block:1px solid var(--line);padding-block:80px}.all-series .series-card{aspect-ratio:2.3}.footer{border-top:1px solid var(--line);padding:44px 0 28px}.footer-top{display:flex;align-items:center;justify-content:space-between;gap:30px;padding-bottom:42px}.footer-logo{font-size:46px;letter-spacing:-3px;font-weight:800}.footer-top p{font-size:16px;color:var(--muted)}.footer-top>a:last-child{font-size:14px}.footer-bottom{border-top:1px solid var(--line);padding-top:22px;display:flex;justify-content:space-between;gap:24px;font-size:12px;color:var(--muted)}.footer-bottom>a{font-size:14px;flex-shrink:0}
@media(min-width:1700px){.hero h1{font-size:78px}.hero{padding-top:52px}}
@media(max-width:1150px){.wrap{width:calc(100% - 64px)}.logo-caption{display:none}.hero-note{max-width:290px}.video-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.video-grid.compact{grid-template-columns:repeat(2,minmax(0,1fr))}.collection{gap:28px;grid-template-columns:190px minmax(0,1fr)}.people-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.feature-play small{display:none}.people-intro{align-items:flex-start}.section-label .eyebrow{display:none}}
@media(max-width:760px){.wrap{width:calc(100% - 36px)}.topbar-in{height:104px;flex-wrap:wrap;gap:0;padding-top:12px}.logo{align-self:flex-start}.wordmark{font-size:23px}.header-link{font-size:12px;align-self:flex-start;padding-top:7px}.nav{order:3;width:100%;height:44px;justify-content:space-between;gap:16px}.nav a{font-size:14px}.nav a.active:after{bottom:2px}.hero{padding-top:24px}.hero-heading{display:block;margin:20px 0 22px}.hero h1{font-size:clamp(36px,8.2vw,58px);letter-spacing:-1.5px}.hero-note{margin-top:18px;max-width:none;gap:12px}.hero-note p{font-size:14px}.hero-note p br{display:none}.small-cross{font-size:24px}.hero>.eyebrow{font-size:12px;letter-spacing:1px}.feature{height:340px}.feature-image{object-position:52% 42%}.feature-top,.feature-bottom{left:18px;right:18px}.feature-top{top:18px}.feature-bottom{bottom:20px;gap:16px}.feature-bottom h2{font-size:22px}.feature-play>span{width:44px;height:44px;font-size:24px}.feature-bottom .eyebrow{letter-spacing:1px}.feature-number{letter-spacing:0}.archive-strip{flex-wrap:wrap;gap:12px 22px;padding:18px 0;min-height:0}.archive-strip strong{font-size:24px}.archive-date{margin-left:auto}.archive-strip .button{width:100%;margin-top:4px}.section{padding-block:44px}.section-head{margin-bottom:24px}.section-label{gap:10px}.section-label h2{font-size:24px}.text-link{font-size:14px;gap:8px}.home-controls{align-items:stretch;flex-direction:column;gap:16px}.home-search{width:100%}.video-grid,.video-grid.compact{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 14px}.video-meta{margin-top:10px;display:block}.video-meta span:last-child{display:none}.vcard h3{font-size:14px;min-height:46px}.video-bottom>span:last-child{display:none}.series-grid{grid-template-columns:1fr;gap:16px}.series-card,.all-series .series-card{aspect-ratio:1.95}.series-top,.series-bottom{left:20px;right:20px}.series-bottom h3{font-size:24px}.people-intro{flex-direction:column;padding-top:28px;gap:24px}.outline-word{letter-spacing:-4px;font-size:80px}.people-intro h3{font-size:20px}.people-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 16px}.person-caption{flex-direction:column;gap:2px}.page-title{padding-top:36px;padding-bottom:30px}.page-title h1{letter-spacing:-1px}.collection{display:block;padding-bottom:50px}.collection-sidebar{padding-top:14px;margin-bottom:24px}.category-filters{flex-direction:row;flex-wrap:nowrap;overflow:auto;margin-top:10px;padding-bottom:10px;gap:8px}.category-filters button{white-space:nowrap;border:1px solid var(--line);flex-shrink:0;gap:14px}.collection-toolbar{gap:8px}.collection-toolbar select{max-width:118px;padding:10px 8px}.search-field{padding-left:8px}.search-field input{padding-left:8px}.pagination{gap:16px}.pagination .button{padding:10px 14px}.footer-top{flex-wrap:wrap;gap:20px;padding-bottom:30px}.footer-logo{font-size:36px}.footer-top p{font-size:14px}.footer-top>a:last-child{width:100%}.footer-bottom{flex-direction:column}.empty{padding:48px 16px}.empty p br{display:none}}
@media(max-width:360px){.video-grid,.video-grid.compact{grid-template-columns:1fr}.hero>.eyebrow{letter-spacing:0}.hero h1{font-size:34px}.archive-date{margin-left:0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
/* 帮助识别 */
.identify-layout{display:grid;grid-template-columns:minmax(340px,460px) minmax(0,1fr);gap:42px;padding-bottom:80px;align-items:start}
.identify-form{padding:26px;border:1px solid var(--line);position:sticky;top:112px;max-height:calc(100vh - 140px);overflow:auto;display:flex;flex-direction:column;gap:16px;align-self:start}
.identify-form h2{font-size:18px;font-weight:500;line-height:1.6}
.chip-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;max-height:300px;overflow:auto;padding-right:4px}
.person-chip{display:flex;flex-direction:column;align-items:center;gap:6px;border:1px solid var(--line);background:var(--panel);padding:10px 4px;font-size:12px;border-radius:3px;color:var(--muted)}
.person-chip img{width:36px;height:45px;object-fit:cover}
.chip-initial{display:grid;place-items:center;width:36px;height:45px;background:#222620;font-size:16px}
.person-chip.picked{border-color:var(--accent);color:var(--ink);background:#d4f77d0d}
.identify-actions{display:flex;align-items:center;gap:16px}
.identify-privacy{font-size:12px}
.identify-card{display:grid;grid-template-columns:160px minmax(0,1fr) auto;gap:18px;align-items:center;border-bottom:1px solid var(--line);padding:18px 0}
.identify-card img{width:160px;height:90px;object-fit:cover}
.identify-card.picked{background:#d4f77d08}
.identify-card.done{opacity:.55}
.identify-card h3{font-size:15px;font-weight:500;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.identify-meta{font-size:12px;color:var(--muted)}
.identify-cast{font-size:13px;color:var(--muted);margin:6px 0 0;max-width:640px}
.identify-tasks .search-field{margin-top:4px}
/* 后台投稿核对 */
.crowd-list{display:flex;flex-direction:column;gap:18px}
.crowd-card{border:1px solid var(--line);padding:18px;display:flex;flex-direction:column;gap:12px}
.crowd-card header{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.crowd-chips{display:flex;flex-wrap:wrap;gap:8px}
.crowd-chip{border:1px solid var(--line);background:var(--panel);padding:6px 12px;font-size:13px;border-radius:2px;color:var(--muted)}
.crowd-chip.selected{border-color:var(--accent);color:var(--ink);background:#d4f77d0d}
.crowd-newname{border:1px dashed var(--accent);padding:6px 12px;font-size:13px;color:var(--ink)}
.crowd-note{color:var(--muted);font-size:14px}
.crowd-actions{display:flex;gap:12px;align-items:center}
.crowd-tip{font-size:12px}
@media(max-width:1150px){.identify-layout{grid-template-columns:1fr;gap:26px}.identify-form{position:static;max-height:none;overflow:visible}}
@media(max-width:760px){.identify-card{grid-template-columns:110px minmax(0,1fr)}.identify-card .button{grid-column:1/-1}.chip-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
/* 状态筛选（tab 风格） */
.status-filters{display:flex;gap:24px;border-bottom:1px solid var(--line);margin-top:14px;overflow:auto}
.status-filters button{background:none;color:var(--muted);padding:10px 0;font-size:14px;border:0;border-bottom:2px solid transparent;border-radius:0;min-height:44px;white-space:nowrap}
.status-filters button.selected{color:var(--ink);border-color:var(--accent)}
.status-filters button span{font-size:12px;color:var(--accent);margin-left:4px}
/* 卡片侧状态徽标 */
.pending-badge{display:inline-block;padding:3px 10px;font-size:12px;border:1px solid var(--accent);color:var(--accent);border-radius:2px;margin-bottom:8px}
.cast-done-chip{display:inline-block;padding:1px 8px;font-size:12px;border:1px solid var(--accent);color:var(--accent);border-radius:2px;vertical-align:1px}
/* 做题模式 */
.quiz-vtitle{font-size:15px;font-weight:500;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.quiz-progress{display:flex;align-items:center;gap:14px}
.quiz-progress-bar{flex:1;height:6px;background:var(--panel);border-radius:3px;overflow:hidden}
.quiz-progress-bar i{display:block;height:100%;background:var(--accent);transition:width .25s}
.quiz-count{font:12px monospace;color:var(--muted);white-space:nowrap}
.quiz-face{display:flex;flex-direction:column;align-items:center;gap:8px;padding:18px 0 6px;text-align:center}
.quiz-face img{width:150px;height:188px;object-fit:cover;border:1px solid var(--line)}
.quiz-face h3{font-size:22px;font-weight:500}
.quiz-face .muted{font-size:13px;max-width:340px}
.quiz-buttons{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:14px 0 6px}
.quiz-btn{display:flex;flex-direction:column;align-items:center;gap:2px;padding:16px 8px;font-size:17px;border:1px solid var(--line);background:var(--panel);border-radius:3px;min-height:64px;justify-content:center;color:var(--ink)}
.quiz-btn small{font:11px monospace;color:var(--muted)}
.quiz-btn.yes:hover,.quiz-btn.yes.picked{border-color:var(--accent);background:#d4f77d14}
.quiz-btn.no:hover,.quiz-btn.no.picked{border-color:#cc8b7e;background:#cc8b7e14}
.quiz-btn.skip:hover{border-color:var(--ink)}
.quiz-nav{display:flex;justify-content:space-between;margin-bottom:4px}
.sum-chips{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 14px}
.sum-chip{padding:5px 12px;font-size:13px;border:1px solid var(--accent);color:var(--ink);background:#d4f77d0d;border-radius:2px}
.wrong-block{display:flex;flex-direction:column;gap:8px;padding:12px;border:1px dashed var(--line);margin-bottom:14px}
.wrong-title{font-size:13px;color:var(--muted)}
.wrong-chips{display:flex;flex-wrap:wrap;gap:8px}
.wrong-chip{border:1px solid var(--line);background:var(--panel);padding:6px 12px;font-size:13px;border-radius:2px;color:var(--muted)}
.wrong-chip.marked{border-color:#cc8b7e;color:#ffb8aa;background:#cc8b7e14}
.identify-form input[type=text],.identify-form textarea{width:100%}
@media(max-width:760px){.quiz-buttons{grid-template-columns:1fr}.quiz-face img{width:120px;height:150px}}
/* ===== 品牌加载屏 ===== */
.loader-screen{min-height:70vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:26px;text-align:center}
.loader-mark{font-size:44px;font-weight:900;letter-spacing:-2px;animation:markIn .5s ease}
.loader-mark span{color:var(--accent);animation:dotPulse 1.1s ease-in-out infinite}
.loader-bar{width:min(320px,70vw);height:4px;background:var(--panel);border-radius:2px;overflow:hidden;position:relative}
.loader-bar i{position:absolute;top:0;left:-40%;width:40%;height:100%;background:var(--accent);border-radius:2px;animation:barSlide 1.1s cubic-bezier(.4,.0,.6,1) infinite}
.loader-text{color:var(--muted);font-size:14px;letter-spacing:1px}
.loader-dots i{animation:dotBlink 1.2s infinite;font-style:normal}
.loader-dots i:nth-child(2){animation-delay:.2s}
.loader-dots i:nth-child(3){animation-delay:.4s}
@keyframes markIn{from{opacity:0;transform:translateY(10px) scale(.96)}to{opacity:1;transform:none}}
@keyframes dotPulse{0%,100%{opacity:1}50%{opacity:.25}}
@keyframes barSlide{0%{left:-40%}100%{left:100%}}
@keyframes dotBlink{0%,60%,100%{opacity:.2}30%{opacity:1}}
/* ===== 页面切换过渡 ===== */
#app.page-in{animation:pageIn .35s ease}
@keyframes pageIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
/* ===== 做题卡片电影感 ===== */
.identify-solo{width:min(860px,calc(100% - 112px));margin-inline:auto;padding-bottom:90px;position:relative}
.identify-solo:before{content:"";position:absolute;top:-60px;left:50%;transform:translateX(-50%);width:min(640px,80%);height:220px;background:radial-gradient(ellipse at center,#d4f77d14,transparent 70%);pointer-events:none}
.identify-solo .identify-form{position:static;max-height:none;overflow:visible;padding:34px 40px 30px;border:1px solid #34393266;background:linear-gradient(180deg,#1b1e1a,#151815);border-radius:6px;box-shadow:0 24px 60px -30px #000c,0 0 0 1px #ffffff08 inset;backdrop-filter:blur(8px)}
.quiz-topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.quiz-topbar .eyebrow{font-family:monospace;letter-spacing:2px}
#quiz-reroll{border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-size:13px;transition:.2s}
#quiz-reroll:hover{border-color:var(--accent);color:var(--accent);transform:rotate(-6deg)}
.quiz-vtitle{font-size:17px;font-weight:500;line-height:1.7;margin-bottom:10px}
.quiz-progress{display:flex;align-items:center;gap:16px;margin:6px 0 8px}
.quiz-progress-bar{flex:1;height:8px;background:#222620;border-radius:4px;overflow:hidden}
.quiz-count{font:12px monospace;color:var(--muted);white-space:nowrap}
.quiz-face{position:relative;display:flex;flex-direction:column;align-items:center;gap:10px;padding:26px 0 10px;text-align:center}
.quiz-face:before{content:"";position:absolute;top:-16px;left:50%;transform:translateX(-50%);width:230px;height:230px;background:radial-gradient(circle,#d4f77d1f,transparent 65%);pointer-events:none}
.quiz-face img{width:170px;height:212px;object-fit:cover;border-radius:4px;border:1px solid #ffffff14;box-shadow:0 18px 40px -18px #000e;position:relative;animation:faceIn .35s cubic-bezier(.2,.7,.3,1)}
@keyframes faceIn{from{opacity:0;transform:scale(.94)}to{opacity:1;transform:none}}
.quiz-face h3{font-size:26px;font-weight:600;letter-spacing:-.5px;position:relative}
.quiz-buttons{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:20px 0 10px}
.quiz-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;padding:20px 8px;font-size:19px;font-weight:500;border:1px solid var(--line);background:var(--panel);border-radius:5px;min-height:80px;color:var(--ink);transition:transform .15s,border-color .15s,background .15s,box-shadow .15s}
.quiz-btn small{font:11px monospace;color:var(--muted);border:1px solid var(--line);border-radius:3px;padding:1px 6px;background:#101210}
.quiz-btn:hover{transform:translateY(-3px)}
.quiz-btn:active{transform:translateY(0) scale(.97)}
.quiz-btn.yes:hover,.quiz-btn.yes.picked{border-color:var(--accent);background:#d4f77d1a;box-shadow:0 10px 30px -12px #d4f77d55}
.quiz-btn.no:hover,.quiz-btn.no.picked{border-color:#e08b7e;background:#e08b7e1a;box-shadow:0 10px 30px -12px #e08b7e55}
.quiz-btn.skip:hover{border-color:var(--ink)}
.quiz-nav{display:flex;justify-content:space-between;margin-bottom:4px}
.sum-chips{display:flex;flex-wrap:wrap;gap:10px;margin:10px 0 16px}
.sum-chip{padding:7px 16px;font-size:14px;border:1px solid var(--accent);color:var(--ink);background:#d4f77d0d;border-radius:3px;animation:faceIn .3s ease both}
.wrong-block{display:flex;flex-direction:column;gap:8px;padding:14px;border:1px dashed #34393288;border-radius:4px;margin-bottom:16px}
.wrong-chip{border:1px solid var(--line);background:var(--panel);padding:7px 14px;font-size:13px;border-radius:3px;color:var(--muted);transition:.15s}
.wrong-chip:hover{border-color:#e08b7e;color:#ffb8aa}
.wrong-chip.marked{border-color:#e08b7e;color:#ffb8aa;background:#e08b7e1a;text-decoration:line-through}
@media(max-width:760px){.quiz-buttons{grid-template-columns:1fr}.quiz-face img{width:130px;height:163px}.identify-solo{width:calc(100% - 36px)}.identify-solo .identify-form{padding:24px 18px}}
/* 做题页封面媒体卡 */
.quiz-media{display:grid;grid-template-columns:220px minmax(0,1fr);gap:18px;align-items:center;padding:12px;border:1px solid #34393266;border-radius:5px;background:#14171466;margin-bottom:14px}
.quiz-cover{position:relative;display:block;overflow:hidden;border-radius:3px}
.quiz-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s}
.quiz-cover:hover img{transform:scale(1.05)}
.play-icon{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);display:grid;place-items:center;width:46px;height:46px;border:1px solid #ffffff90;border-radius:50%;font-size:18px;color:#fff;background:#0008;transition:.2s}
.quiz-cover:hover .play-icon{background:var(--accent);color:var(--bg);border-color:var(--accent)}
.quiz-media-info{display:flex;flex-direction:column;gap:8px}
.watch-link{font-size:14px;display:inline-flex;align-items:center;gap:8px;color:var(--accent)}
.watch-link:hover{text-decoration:underline}
@media(max-width:760px){.quiz-media{grid-template-columns:1fr}.quiz-cover img{aspect-ratio:16/9}}

/* v4.1 Bilibili embed compatibility */
.preview-open-bili{margin-left:auto;color:#8ff7ef;text-decoration:none;font-size:12px;font-weight:800;white-space:nowrap;opacity:.92}.preview-open-bili:hover{opacity:1;text-shadow:0 0 12px rgba(78,205,196,.65)}@media(max-width:640px){.preview-open-bili{display:none}}