:root{color-scheme:dark;--bg:#080b0d;--panel:#101416;--line:#323638;--text:#f4f4f4;--muted:#9b9fa2;--selected:#232729}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Noto Sans CJK SC","Source Han Sans SC","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}h1,h2,h3,p,figure{margin:0}h1,h2,h3{font-weight:500;letter-spacing:-.045em}a{color:inherit;text-decoration:none}button,input{font:inherit}button{color:inherit;cursor:pointer;border:0}button,a,summary,input{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible{outline:2px solid var(--text);outline-offset:5px}img{display:block;max-width:100%;height:auto}::selection{color:var(--bg);background:var(--text)}[hidden]{display:none!important}.wrap{width:min(100% - 96px,1344px);margin-inline:auto}.section{border-top:1px solid var(--line);padding-block:100px}.eyebrow{font-size:12px;letter-spacing:.08em;color:var(--muted);margin-bottom:25px}h2{font-size:clamp(30px,3.5vw,48px);line-height:1.3}.button{display:inline-flex;align-items:center;justify-content:center;gap:24px;min-height:48px;border:1px solid var(--line);border-radius:999px;padding:11px 22px;font-size:14px;background:#181c1e;transition:background .18s}.button:hover{background:#292e30}.button.light{background:var(--text);border-color:var(--text);color:var(--bg)}.button.light:hover{background:#d9dcde}.text-link{font-size:14px;border-bottom:1px solid #656a6c;padding-bottom:3px}.text-link:hover{border-color:var(--text)}.skip-link{position:fixed;z-index:10;left:20px;top:12px;background:var(--text);color:var(--bg);border-radius:99px;padding:10px 20px;transform:translateY(-180%)}.skip-link:focus{transform:translateY(0)}
.site-header{max-width:1600px;margin:auto;padding:22px 48px;display:flex;gap:24px;align-items:center;min-height:92px}.brand{font-size:21px;font-weight:600;white-space:nowrap;letter-spacing:-.025em;display:flex;gap:18px;align-items:center}.brand span{border-left:1px solid var(--line);padding-left:18px;color:var(--muted);font-size:12px;font-weight:400;letter-spacing:.04em}.site-header nav{display:flex;gap:4px;margin-left:auto;padding:4px;border-radius:99px;background:var(--panel)}.site-header nav a{font-size:13px;padding:9px 16px;border-radius:99px;color:var(--muted);white-space:nowrap}.site-header nav a:hover,.site-header nav a[aria-current]{background:var(--selected);color:var(--text)}.header-contact{font-size:12px;min-height:42px;padding:8px 18px}
.hero{padding-top:65px;padding-bottom:46px;display:grid;grid-template-columns:1.4fr .85fr;align-items:center;gap:7%}.hero-copy .eyebrow{font-size:16px;color:#d5d7d8;margin-bottom:28px;letter-spacing:.03em}.hero h1{font-size:clamp(52px,5.8vw,84px);line-height:1.18;letter-spacing:-.065em}.hero-description{max-width:470px;color:var(--muted);font-size:17px;line-height:1.9;margin-top:27px}.hero-actions{display:flex;align-items:center;gap:26px;margin-top:32px}.hero-proof{position:relative;display:flex;align-items:center;flex-direction:column;justify-content:center;padding:20px 0 0}.poster-button{padding:0;background:transparent;max-width:320px;width:76%;position:relative;border-radius:12px;overflow:hidden}.poster-button img{width:100%;height:auto}.image-hint{position:absolute;bottom:12px;right:12px;font-size:11px;padding:6px 12px;background:rgba(8,11,13,.8);border:1px solid #45494a;border-radius:99px;color:#e8eaeb}.hero-proof figcaption{font-size:12px;color:var(--muted);margin-top:18px}.hero-bottom{grid-column:1/-1;display:flex;justify-content:space-between;gap:20px;padding-top:27px;color:var(--muted);font-size:11px;letter-spacing:.04em}.hero-bottom a{color:var(--text)}
.rank-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:35px 0 33px;gap:25px;margin-bottom:98px}.rank-item{padding-left:28px;border-left:1px solid var(--line);display:block}.rank-item:first-child{border-left:0;padding-left:0}.rank-item strong{display:block;font-size:39px;font-weight:500;letter-spacing:-.05em;line-height:1.25}.rank-item .rank-word{font-size:28px;padding-top:8px;line-height:1.35}.rank-item span{display:block;font-size:12px;margin-top:14px;color:#d7d9da}.rank-item small{display:block;font-size:10px;color:var(--muted);margin-top:5px}.rank-item:hover strong{color:white}
.spotlight{display:grid;grid-template-columns:.85fr 1.3fr;gap:7%;align-items:center}.spotlight h2{font-size:40px}.spotlight-description{font-size:15px;color:var(--muted);margin-top:23px;line-height:1.9;max-width:390px}.lib-ranks{display:flex;gap:40px;margin-top:34px}.lib-ranks strong{display:block;font-size:51px;line-height:1.2;font-weight:500;letter-spacing:-.055em}.lib-ranks span{display:block;color:var(--muted);font-size:12px;margin-top:10px}.spotlight-actions{display:flex;gap:24px;align-items:center;margin-top:32px}.spotlight-actions .button{font-size:13px}.wide-proof{padding:0;background:var(--panel);border:1px solid var(--line);border-radius:16px;overflow:hidden;position:relative;width:100%}.wide-proof img{width:100%;height:auto}.proof-caption{display:flex;justify-content:space-between;gap:16px;margin-top:15px;font-size:11px;color:var(--muted)}.evidence-caption{color:var(--muted);font-size:11px;line-height:1.8;margin-top:22px;max-width:390px}.teaching{display:grid;grid-template-columns:1.2fr .85fr;gap:7%;align-items:center}.teaching .wide-proof img{aspect-ratio:4/3;object-fit:contain}.teaching h2{font-size:37px}.teaching p.description{color:var(--muted);font-size:15px;margin-top:23px;line-height:1.9}.institution-links{margin-top:30px}.institution-links a{display:flex;align-items:center;justify-content:space-between;gap:24px;font-size:14px;border-top:1px solid var(--line);padding:14px 0}.institution-links a:last-child{border-bottom:1px solid var(--line)}.institution-links a>span{color:var(--muted);font-size:12px}.institution-links a:hover{color:white}
.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px}.section-heading .eyebrow{margin-bottom:21px}.section-heading>p{max-width:310px;font-size:13px;color:var(--muted);line-height:1.8}.archive-controls{display:flex;align-items:center;flex-wrap:wrap;gap:20px;justify-content:space-between}.filters{display:flex;flex-wrap:wrap;gap:4px;max-width:100%}.filter{background:transparent;color:var(--muted);border-radius:99px;padding:11px 16px;font-size:13px;white-space:nowrap}.filter:hover{background:var(--panel);color:var(--text)}.filter[aria-pressed=true]{background:var(--selected);color:var(--text)}.search-field{display:flex;align-items:center;gap:12px;border:1px solid var(--line);border-radius:99px;min-height:44px;padding:0 16px;flex-shrink:0}.search-field span{font-size:12px;color:var(--muted)}.search-field input{width:180px;min-width:0;padding:10px 0;border:0;background:transparent;color:var(--text);font-size:12px;outline:none}.search-field:focus-within{border-color:var(--muted)}.search-field input::placeholder{color:#81878a}.results{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:var(--muted);margin-top:28px;padding-bottom:19px;border-bottom:1px solid var(--line)}.reset{background:transparent;color:var(--muted);padding:0;font-size:11px;text-decoration:underline;text-underline-offset:4px}.archive-group{margin-top:43px;scroll-margin-top:30px}.archive-group>h3{font-size:14px;letter-spacing:0;color:#c4c9cb;font-weight:400;padding-bottom:21px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between}.archive-group>h3 span{font-size:11px;color:var(--muted)}.record{border-bottom:1px solid var(--line);scroll-margin-top:30px}.record summary{list-style:none;display:grid;grid-template-columns:170px minmax(0,1fr) 80px 32px;gap:24px;align-items:center;padding:26px 0;cursor:pointer}.record summary::-webkit-details-marker{display:none}.record-date{font-size:12px;color:var(--muted);align-self:start;padding-top:4px;font-variant-numeric:tabular-nums}.record-date span{display:block;font-size:10px;margin-top:7px;color:#72797d}.record-heading h3{font-size:21px;letter-spacing:-.025em;line-height:1.5}.record-heading>p{font-size:12px;line-height:1.85;margin-top:8px;color:var(--muted);max-width:640px}.record-thumb{width:80px;height:68px;background:var(--panel);border:1px solid #292f32;border-radius:8px;padding:4px;overflow:hidden}.record-thumb img{width:100%;height:100%;object-fit:contain}.record-thumb.link-proof{display:grid;place-items:center;color:var(--muted);font-size:12px}.expand-icon{display:grid;place-items:center;width:32px;height:32px;background:#181c1e;border-radius:50%;font-size:21px;font-weight:300;transition:transform .2s}.record[open] .expand-icon{transform:rotate(45deg)}.record summary:hover h3{color:white}.record-body{padding:0 56px 32px 194px}.record-body>p{font-size:15px;color:#cbd0d2;line-height:1.85;max-width:850px;margin-bottom:22px}.record-facts{padding-left:19px;margin:0 0 25px;color:var(--muted);font-size:13px;line-height:1.9}.record-facts li+li{margin-top:8px}.photo-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.photo-grid.single{max-width:460px;grid-template-columns:1fr}.photo-grid.double{grid-template-columns:repeat(2,minmax(0,1fr))}.photo-button{aspect-ratio:1.35;position:relative;padding:14px;background:var(--panel);border:1px solid var(--line);border-radius:10px;overflow:hidden;min-width:0}.photo-button img{width:100%;height:100%;object-fit:contain}.photo-button .image-hint{font-size:10px;bottom:9px;right:9px}.photo-caption{font-size:11px;color:var(--muted);line-height:1.7;margin-top:12px}.record-links{display:flex;flex-direction:column;align-items:flex-start;gap:14px;margin-top:24px;font-size:12px}.record-links a{border-bottom:1px solid #656a6c;padding-bottom:3px;overflow-wrap:anywhere}.empty-state{text-align:center;padding:70px 10px}.empty-state h3{font-size:23px}.empty-state p{font-size:13px;color:var(--muted);margin:14px 0 24px}.empty-state .button{font-size:13px}
.contact{border-top:1px solid var(--line);padding-block:90px}.contact-inner{display:flex;justify-content:space-between;align-items:center;gap:40px}.contact h2{font-size:clamp(32px,3.5vw,48px)}.contact p{font-size:14px;color:var(--muted);margin-top:20px}.wechat{display:flex;flex-direction:column;align-items:flex-start;min-width:200px}.wechat span{font-size:11px;color:var(--muted)}.wechat strong{font-weight:400;font-size:34px;letter-spacing:-.025em;margin:4px 0 18px}.copy-status{font-size:11px;color:var(--muted);min-height:20px;margin-top:8px}.site-footer{border-top:1px solid var(--line);padding-block:28px 35px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:20px;color:var(--muted);font-size:11px}.site-footer a{text-decoration:underline;text-underline-offset:4px}.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
dialog{width:min(1250px,calc(100vw - 40px));max-height:calc(100dvh - 40px);border:1px solid var(--line);border-radius:16px;padding:18px 22px 16px;overflow:hidden;background:var(--bg);color:var(--text)}dialog::backdrop{background:rgba(0,0,0,.92);backdrop-filter:blur(5px)}.dialog-toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:13px;padding-bottom:14px}.dialog-toolbar p{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.dialog-toolbar button{font-size:12px;white-space:nowrap;padding:7px 15px;background:var(--selected);border-radius:99px}.dialog-stage{position:relative;display:flex;justify-content:center;align-items:center;min-height:150px;height:calc(100dvh - 220px)}.dialog-stage img{max-width:100%;width:auto;height:auto;max-height:100%;object-fit:contain}.gallery-arrow{position:absolute;top:calc(50% - 20px);width:40px;height:40px;border:1px solid #45494a;border-radius:50%;background:rgba(8,11,13,.9);font-size:22px}.gallery-arrow:first-of-type{left:0}.gallery-arrow:last-of-type{right:0}.gallery-arrow:disabled{opacity:.25;cursor:default}.dialog-bottom{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;margin-top:15px;font-size:11px;color:var(--muted)}.dialog-bottom p{max-width:850px;line-height:1.7}.dialog-bottom a{white-space:nowrap;border-bottom:1px solid #656a6c}.dialog-counter{font-size:10px;letter-spacing:.04em;text-align:center;margin-top:8px;color:var(--muted)}body.dialog-open{overflow:hidden}
.record[open] .record-heading>p{display:none}.search-field span{white-space:nowrap;flex-shrink:0}.dialog-controls{display:flex;gap:9px;flex-shrink:0}.dialog-stage.zoomed{display:block;overflow:auto;overscroll-behavior:contain;background:#050708;border:1px solid #292f32;border-radius:7px}.dialog-stage.zoomed img{max-width:none;max-height:none;width:auto;height:auto;margin-inline:auto}.dialog-stage.zoomed .gallery-arrow{display:none}
@media(min-width:1600px){.hero h1{font-size:84px}.hero{padding-block:80px 50px}}
@media(max-width:1100px){.site-header{gap:16px}.brand{font-size:19px;gap:12px}.brand span{font-size:10px;padding-left:12px}.site-header nav a{padding:8px 11px;font-size:12px}.header-contact{display:none}.hero{gap:5%}.hero h1{font-size:62px}.spotlight h2{font-size:34px}.lib-ranks{gap:28px}.teaching h2{font-size:32px}.record summary{grid-template-columns:140px minmax(0,1fr) 75px 30px;gap:20px}.record-body{padding-left:160px}.archive-controls{justify-content:flex-start}.search-field{margin-left:auto}}
@media(max-width:800px){.wrap{width:calc(100% - 48px)}.site-header{padding:20px 24px;flex-wrap:wrap;gap:18px;min-height:auto}.site-header nav{margin-left:auto}.brand span{display:none}.hero{padding-top:45px;gap:20px;grid-template-columns:1fr .65fr}.hero h1{font-size:49px}.hero-description{font-size:14px}.hero-actions{gap:18px}.hero-actions .button{padding-inline:18px;font-size:12px}.hero-actions .text-link{font-size:12px}.poster-button{width:95%}.rank-strip{margin-bottom:65px;gap:20px}.rank-item{padding-left:18px}.rank-item strong{font-size:32px}.rank-item .rank-word{font-size:23px}.rank-item span{font-size:11px}.rank-item small{font-size:9px}.section{padding-block:65px}.spotlight{grid-template-columns:1fr;gap:34px}.spotlight-description{max-width:600px}.evidence-caption{max-width:600px}.teaching{grid-template-columns:1fr;gap:32px}.teaching-visual{order:2}.teaching h2{font-size:34px}.section-heading{align-items:flex-start}.section-heading>p{max-width:210px;font-size:12px}.search-field{margin-left:0}.record summary{grid-template-columns:115px minmax(0,1fr) 65px 28px;gap:15px}.record-heading h3{font-size:18px}.record-thumb{width:65px;height:60px}.record-body{padding-left:130px;padding-right:0}.photo-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.contact-inner{gap:28px}.contact h2{font-size:35px}}
@media(max-width:560px){.wrap{width:calc(100% - 40px)}.site-header{padding:19px 20px 0;gap:17px}.brand{font-size:19px}.brand span{display:block;font-size:10px}.site-header nav{margin-left:0;width:100%;justify-content:space-between;padding:3px}.site-header nav a{font-size:11px;padding:9px 13px}.hero{display:flex;flex-direction:column;align-items:stretch;padding-top:43px;padding-bottom:26px;gap:0}.hero-copy .eyebrow{font-size:13px;margin-bottom:21px}.hero h1{font-size:clamp(42px,12vw,62px);line-height:1.24}.hero-description{font-size:14px;margin-top:23px;line-height:1.9;max-width:350px}.hero-actions{margin-top:27px;gap:23px}.hero-proof{margin-top:32px;padding-top:0}.poster-button{width:72%;max-width:270px}.hero-proof figcaption{font-size:10px;margin-top:13px}.hero-bottom{padding-top:28px;font-size:10px}.hero-bottom a{display:none}.rank-strip{grid-template-columns:1fr 1fr;gap:25px 19px;padding-block:28px;margin-bottom:56px}.rank-item{padding-left:17px}.rank-item:nth-child(3){border:0;padding-left:0}.rank-item strong{font-size:34px}.rank-item .rank-word{font-size:25px;padding-top:4px;line-height:1.48}.rank-item span{font-size:11px;margin-top:10px}.rank-item small{font-size:9px;margin-top:5px}.section{padding-block:56px}.eyebrow{font-size:11px;margin-bottom:20px}.spotlight h2{font-size:31px}.spotlight-description{font-size:14px;margin-top:20px}.lib-ranks{margin-top:27px;gap:45px}.lib-ranks strong{font-size:48px}.lib-ranks span{font-size:11px}.spotlight-actions{margin-top:27px;gap:22px}.spotlight-actions .button{font-size:12px;min-height:44px;padding-inline:17px}.spotlight-actions .text-link{font-size:12px}.evidence-caption{font-size:10px;margin-top:19px}.wide-proof{border-radius:12px}.proof-caption{font-size:10px;flex-wrap:wrap;gap:7px;margin-top:12px}.teaching h2{font-size:30px}.teaching p.description{font-size:14px;margin-top:20px}.institution-links{margin-top:25px}.institution-links a{font-size:13px;gap:12px}.institution-links a>span{font-size:11px}.section-heading{display:block;margin-bottom:31px}.section-heading h2{font-size:32px}.section-heading>p{max-width:330px;margin-top:18px;font-size:12px}.archive-controls{gap:18px}.filters{flex-wrap:nowrap;overflow:auto;padding-block:2px 5px;width:100%;scrollbar-width:none}.filters::-webkit-scrollbar{display:none}.filter{padding:10px 13px;font-size:12px}.search-field{width:100%;min-height:43px}.search-field input{width:100%}.results{margin-top:22px;font-size:10px}.archive-group{margin-top:32px}.archive-group>h3{font-size:13px;padding-bottom:17px}.record summary{grid-template-columns:minmax(0,1fr) 28px;gap:8px 14px;padding:23px 0}.record-date{grid-column:1;grid-row:1;font-size:11px;display:flex;gap:12px;align-items:center;padding:0}.record-date span{margin:0;font-size:10px}.record-heading{grid-column:1;grid-row:2}.record-heading h3{font-size:18px;line-height:1.6}.record-heading>p{font-size:11px;margin-top:7px}.record-thumb{display:none}.expand-icon{grid-column:2;grid-row:1/3;width:28px;height:28px;font-size:19px}.record-body{padding:0 0 25px}.record-body>p{font-size:14px}.record-facts{font-size:12px;margin-bottom:20px}.photo-grid{gap:9px}.photo-button{padding:8px;border-radius:8px}.photo-button .image-hint{font-size:9px;padding:3px 7px;bottom:5px;right:5px}.photo-caption{font-size:10px}.record-links{font-size:11px;gap:13px}.contact{padding-block:56px}.contact-inner{flex-direction:column;align-items:stretch;gap:30px}.contact h2{font-size:32px}.contact p{font-size:13px;margin-top:18px}.wechat{border-top:1px solid var(--line);padding-top:25px}.wechat strong{font-size:34px}.wechat .button{font-size:12px;min-height:44px}.site-footer{font-size:10px;padding-block:24px;gap:18px}.site-footer>p{width:100%;line-height:1.9}dialog{width:calc(100vw - 18px);max-height:calc(100dvh - 20px);padding:13px 10px 12px;border-radius:12px}.dialog-toolbar{font-size:11px;gap:12px}.dialog-toolbar button{font-size:11px;padding:6px 11px}.dialog-stage{height:calc(100dvh - 210px)}.gallery-arrow{width:32px;height:32px;font-size:19px}.dialog-bottom{font-size:10px;gap:15px}.dialog-bottom p{max-width:230px}.dialog-counter{margin-top:10px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
@media print{body{background:white;color:black}.site-header nav,.header-contact,.hero-actions,.hero-bottom,.image-hint,.archive-controls,.results,.expand-icon,.contact,.site-footer>a{display:none}.wrap{width:100%}.section{padding-block:35px}.rank-strip{margin-bottom:30px}.record{break-inside:avoid}.record[hidden],.archive-group[hidden]{display:block!important}.record-body{display:none}.hero{padding-top:20px}.hero h1{font-size:55px}.poster-button{max-width:200px}.text-link{color:black}.rank-item span,.hero-description,.record-heading>p,.spotlight-description{color:#555}}
/* v1.17 加号改用两条线画，原来“+”字形在圆里偏下、看着歪；手机上筛选按钮换行，不再藏在右边；英文版首屏按钮文字不再挤成三行 */
.expand-icon{position:relative;font-size:0!important}.expand-icon::before,.expand-icon::after{content:"";position:absolute;left:50%;top:50%;width:12px;height:1.5px;margin:-.75px 0 0 -6px;background:currentColor;border-radius:1px}.expand-icon::after{transform:rotate(90deg)}
@media(max-width:560px){.filters{flex-wrap:wrap;overflow:visible}.hero-actions{flex-wrap:wrap;row-gap:14px}.hero-actions .button{white-space:nowrap}}