:root{--bg: radial-gradient(1200px 800px at 10% -10%, #f7f9fb 0%, #eef2f3 45%, #e8ecef 100%);--grain: repeating-linear-gradient(115deg, rgba(16,22,29,.08) 0 1px, transparent 1px 3px), radial-gradient(3px 3px at 18% 24%, rgba(16,22,29,.16) 0 60%, transparent 62%), radial-gradient(3px 3px at 68% 58%, rgba(16,22,29,.12) 0 60%, transparent 62%), radial-gradient(2px 2px at 42% 74%, rgba(16,22,29,.1) 0 60%, transparent 62%);--paper: #f9fafb;--paper-texture: radial-gradient(110px 110px at 10% 10%, rgba(59,130,196,.14), transparent 60%), radial-gradient(150px 150px at 90% 18%, rgba(59,130,196,.12), transparent 60%), radial-gradient(80px 80px at 72% 78%, rgba(59,130,196,.1), transparent 60%), repeating-linear-gradient(135deg, rgba(16,22,29,.06) 0 1px, transparent 1px 5px);--ink: #10161d;--muted: rgba(16,22,29,.68);--line: rgba(16,22,29,.12);--shadow: 0 12px 30px rgba(10,18,25,.08);--accent: #3b82c4;--accent-ink: #0b2740;--accent-soft: rgba(59,130,196,.16);--header-bg: rgba(246,248,251,.82);--footer-bg: rgba(238,242,243,.7);--radius: 18px}:root[data-theme=dark-tech]{--bg: radial-gradient(1200px 800px at 10% -10%, #141a22 0%, #0f141b 45%, #0b1016 100%);--grain: repeating-linear-gradient(115deg, rgba(230,237,243,.12) 0 1px, transparent 1px 4px), radial-gradient(3px 3px at 18% 24%, rgba(102,209,255,.2) 0 60%, transparent 62%), radial-gradient(3px 3px at 68% 58%, rgba(102,209,255,.16) 0 60%, transparent 62%), radial-gradient(2px 2px at 42% 74%, rgba(102,209,255,.14) 0 60%, transparent 62%);--paper: #10161f;--paper-texture: radial-gradient(130px 130px at 12% 12%, rgba(102,209,255,.22), transparent 60%), radial-gradient(170px 170px at 88% 18%, rgba(102,209,255,.18), transparent 60%), radial-gradient(90px 90px at 70% 76%, rgba(102,209,255,.16), transparent 60%), repeating-linear-gradient(135deg, rgba(230,237,243,.1) 0 1px, transparent 1px 5px);--ink: #e6edf3;--muted: rgba(230,237,243,.68);--line: rgba(230,237,243,.12);--shadow: 0 16px 36px rgba(0,0,0,.45);--accent: #66d1ff;--accent-ink: #041a24;--accent-soft: rgba(102,209,255,.2);--header-bg: rgba(8,12,18,.8);--footer-bg: rgba(8,12,18,.7)}*{box-sizing:border-box}html,body{margin:0;padding:0;background-color:#0b1016;background-image:var(--bg),var(--grain);background-attachment:fixed,scroll;color:var(--ink);font-family:Saira,PingFang SC,Microsoft YaHei,Segoe UI,Roboto,Arial,sans-serif;transition:background .3s ease,color .2s ease}a{color:inherit;text-decoration:none}b{font-weight:700}.container{width:min(1100px,calc(100% - 32px));margin:0 auto}.header{position:sticky;top:0;z-index:50;background:var(--header-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:16px}.brand{display:flex;flex-direction:column;gap:4px}.brand-mark{font-weight:800;letter-spacing:.5px}.brand-sub{font-size:12px;color:var(--muted);letter-spacing:.7px}.nav{display:flex;gap:10px;flex-wrap:wrap}.nav-link{font-size:14px;padding:8px 10px;border-radius:999px;border:1px solid transparent;color:#1c1c1ccc;position:relative;overflow:hidden;transition:border-color .18s ease,background .18s ease}.nav-link:hover{border-color:var(--line);background:#ffffff80}.nav-link.active{border-color:var(--accent-soft);background:#3b82c414;color:var(--ink)}.nav-link:after{content:"";position:absolute;left:-30%;right:-30%;bottom:-6px;height:10px;background:radial-gradient(40% 60% at 50% 0%,rgba(59,130,196,.35),transparent 70%);opacity:0;transform:translateY(6px);transition:opacity .18s ease,transform .18s ease;pointer-events:none}.nav-link:hover:after,.nav-link.active:after{opacity:.9;transform:translateY(0)}.header-right{display:flex;gap:10px}.theme-toggle{display:flex;gap:8px;flex-wrap:wrap}.theme-chip{font-size:12px}.chip.active{border-color:#3b82c480;background:linear-gradient(180deg,#3b82c42e,#3b82c40f);box-shadow:0 0 0 3px #3b82c41f}.chip{font-size:13px;padding:8px 12px;border-radius:999px;border:1px solid var(--line);background:#fff9}.chip:hover{border-color:var(--accent-soft)}.app main{padding:18px 0 40px}.page{display:flex;flex-direction:column;gap:18px;padding:8px 0;animation:page-enter .5s ease both}.page-head{display:flex;flex-direction:column;gap:6px}.reveal{opacity:0;transform:translateY(10px);transition:opacity .45s ease,transform .45s ease}.reveal.is-visible{opacity:1;transform:translateY(0)}.h1{margin:0;font-size:34px;letter-spacing:.2px}.h2{margin:0;font-size:20px}.kicker{font-size:12px;text-transform:uppercase;letter-spacing:1.2px;color:var(--muted)}.lead{margin:8px 0 0;font-size:16px;line-height:1.65}.muted{color:var(--muted)}.small{font-size:12px}.dot{margin:0 6px;color:#1c1c1c59}.h1,.h2,.story-title,.topic-title,.panel-title,.list-title,.exhibit-name{letter-spacing:.2px}.card,.hero-panel,.topic,.list-item,.qa-item{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;background-image:var(--paper-texture);position:relative;overflow:hidden;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}.hero-panel,.topic,.grid3>.card,.gridCards>.card{animation:breathe 10s ease-in-out infinite}.card:hover,.hero-panel:hover,.topic:hover,.list-item:hover,.qa-item:hover{transform:translateY(-2px);border-color:#3b82c459;box-shadow:0 14px 34px #0a12192e}.card:hover:after,.hero-panel:hover:after,.topic:hover:after,.list-item:hover:after,.qa-item:hover:after{animation:glow-pulse 1.8s ease-in-out infinite}:root[data-theme=dark-tech] .card:hover,:root[data-theme=dark-tech] .hero-panel:hover,:root[data-theme=dark-tech] .topic:hover,:root[data-theme=dark-tech] .list-item:hover,:root[data-theme=dark-tech] .qa-item:hover{border-color:#66d1ff73;box-shadow:0 18px 40px #00000080}.card:after,.hero-panel:after,.topic:after,.list-item:after,.qa-item:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;border-radius:inherit;pointer-events:none;box-shadow:inset 0 0 0 1px #ffffff47,inset 0 0 24px #3b82c414;mix-blend-mode:screen;opacity:.55}:root[data-theme=dark-tech] .card:after,:root[data-theme=dark-tech] .hero-panel:after,:root[data-theme=dark-tech] .topic:after,:root[data-theme=dark-tech] .list-item:after,:root[data-theme=dark-tech] .qa-item:after{box-shadow:inset 0 0 0 1px #ffffff24,inset 0 0 30px #66d1ff1f;opacity:.7}:root[data-theme=dark-tech] .metric{background:#10161fb3;border-color:#e6edf31f}:root[data-theme=dark-tech] .micro{color:#e6edf3c7;border-color:#e6edf329;background:#10161fb3}.row{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}.grid3,.gridCards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.grid3>*{animation:rise .5s ease both}.gridCards>*{animation:rise .5s ease both}.grid3>*:nth-child(1),.gridCards>*:nth-child(1){animation-delay:.05s}.grid3>*:nth-child(2),.gridCards>*:nth-child(2){animation-delay:.1s}.grid3>*:nth-child(3),.gridCards>*:nth-child(3){animation-delay:.15s}.grid3>*:nth-child(4),.gridCards>*:nth-child(4){animation-delay:.2s}.grid3>*:nth-child(5),.gridCards>*:nth-child(5){animation-delay:.25s}.grid3>*:nth-child(6),.gridCards>*:nth-child(6){animation-delay:.3s}@media (max-width: 900px){.grid3,.gridCards{grid-template-columns:1fr}.header-inner{flex-direction:column;align-items:flex-start}.header-right{width:100%}}.btn{border:1px solid var(--line);background:#ffffffa6;padding:10px 14px;border-radius:999px;font-size:14px;cursor:pointer;display:inline-flex;align-items:center;gap:8px;transition:transform .12s ease,border-color .18s ease,box-shadow .18s ease}.btn:hover{border-color:var(--accent-soft);box-shadow:0 6px 16px #0a12191f}.btn:active{transform:translateY(1px) scale(.98)}.btn.primary{border-color:var(--accent-soft);background:linear-gradient(180deg,#3b82c42e,#3b82c414)}.link{color:var(--accent);font-weight:600}.link:hover{text-decoration:underline}.hero{padding:18px}.hero-top{display:grid;grid-template-columns:1.35fr .65fr;gap:14px}.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0 10px}.hero-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:10px 0 6px}.metric{border:1px solid var(--line);border-radius:12px;padding:10px 14px;background:#ffffff8c;background-image:var(--paper-texture)}.metric-value{font-weight:800;font-size:14px;letter-spacing:.2px}.metric-label{font-size:12px;color:var(--muted);margin-top:4px}.hero-panel{border:1px solid var(--line);border-radius:var(--radius);padding:14px;background:#ffffff8c}.panel-title{font-weight:800;margin-bottom:10px}.panel-list{margin:0;padding-left:18px;color:#1c1c1cc7;line-height:1.6}.panel-actions{margin-top:12px;display:flex;gap:10px;flex-wrap:wrap}@media (max-width: 900px){.hero-top,.hero-metrics{grid-template-columns:1fr}}.story-title{font-weight:800;margin-bottom:6px}.story-title,.topic-title,.panel-title,.exhibit-name{text-shadow:0 2px 12px rgba(59,130,196,.12)}.section{display:flex;flex-direction:column;gap:12px}.section{animation:section-rise .5s ease both}.section-head{display:flex;flex-direction:column;gap:4px}.topic{border:1px dashed rgba(28,28,28,.2);border-radius:14px;padding:12px;background:#ffffff73}.topic-title{font-weight:800;margin-bottom:6px}.pill{display:inline-flex;padding:6px 10px;border-radius:999px;border:1px solid var(--line);background:#ffffffa6;font-size:12px}.pill{transition:transform .18s ease,border-color .18s ease,background .18s ease}.pill:hover{transform:translateY(-1px);border-color:var(--accent-soft)}.pillrow{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:10px}.quick-tags{margin:4px 0 12px}.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}.micro-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}.micro{font-size:12px;color:#1c1c1cc7;border:1px dashed rgba(28,28,28,.16);padding:4px 8px;border-radius:999px;background:#ffffff8c;transition:transform .18s ease,border-color .18s ease,background .18s ease}.micro:hover{transform:translateY(-1px);border-color:var(--accent-soft)}.tag{font-size:12px;padding:6px 10px;border-radius:999px;border:1px solid rgba(59,130,196,.24);background:#3b82c41a}.element-card{display:flex;flex-direction:column;gap:10px;transition:transform .15s ease}.element-card:hover{transform:translateY(-2px);border-color:var(--accent-soft)}.exhibit-label{display:flex;gap:12px;align-items:center}.symbol{width:54px;height:54px;border-radius:14px;border:1px solid rgba(28,28,28,.16);display:flex;align-items:center;justify-content:center;font-weight:900;letter-spacing:.5px;background:radial-gradient(circle at 20% 20%,#3b82c438,#ffffff8c)}.meta .name{font-weight:900;font-size:16px}.meta .sub{font-size:12px;color:var(--muted)}.one-liner{color:#1c1c1cc7;line-height:1.55}.filterbar{display:flex;flex-direction:column;gap:12px}.filter-row{display:flex;gap:12px;flex-wrap:wrap}.field{display:flex;flex-direction:column;gap:6px;min-width:220px}.field-right{margin-left:auto;min-width:auto;justify-content:flex-end}.label{font-size:12px;color:var(--muted)}.input,.select{border:1px solid var(--line);border-radius:12px;padding:10px 14px;background:#ffffffb3;outline:none;transition:border-color .18s ease,box-shadow .18s ease,transform .12s ease}.input:focus,.select:focus{border-color:var(--accent-soft);box-shadow:0 0 0 4px var(--accent-soft)}.input:focus,.select:focus{transform:translateY(-1px)}.filter-tags{display:flex;gap:10px;flex-wrap:wrap}.tagchip{border:1px solid var(--line);background:#fff9;padding:8px 12px;border-radius:999px;font-size:12px;cursor:pointer;transition:transform .18s ease,border-color .18s ease,background .18s ease}.tagchip.active{border-color:var(--accent-soft);background:#3b82c41f}.tagchip:hover{transform:translateY(-1px)}.results-bar{display:flex;justify-content:space-between;align-items:center}.detail-layout{display:grid;grid-template-columns:1fr 320px;gap:14px}.detail-main,.detail-side{display:flex;flex-direction:column;gap:14px}@media (max-width: 900px){.detail-layout{grid-template-columns:1fr}}.exhibit{padding:18px}.exhibit-top{display:flex;gap:14px;align-items:flex-start}.exhibit-symbol{width:84px;height:84px;border-radius:18px;border:1px solid rgba(28,28,28,.16);display:flex;align-items:center;justify-content:center;font-weight:1000;font-size:30px;background:radial-gradient(circle at 20% 20%,#3b82c442,#fff9)}.exhibit-name{font-weight:900;font-size:22px}.exhibit-sub{margin-top:6px;font-size:12px;color:var(--muted)}.exhibit-line{margin-top:10px;color:#1c1c1cc7;line-height:1.6}.section-block p{margin:8px 0;line-height:1.75;color:#1c1c1cd1}.subhead{margin-top:8px;margin-bottom:6px;font-weight:900}.split{display:grid;grid-template-columns:1fr 1fr;gap:14px}@media (max-width: 900px){.split{grid-template-columns:1fr}}.ul{margin:8px 0 0;padding-left:18px;color:#1c1c1cd1;line-height:1.7}.list{display:flex;flex-direction:column;gap:10px;margin-top:10px}.list-item{border:1px solid var(--line);background:#ffffff8c;border-radius:14px;padding:12px;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}.list-title{font-weight:900;margin-bottom:4px}.linkblock:hover{border-color:var(--accent-soft)}.linkblock:active{transform:translateY(1px)}.toc{position:sticky;top:92px}.toc-title{font-weight:900;margin-bottom:10px}.toc-nav{display:flex;flex-direction:column;gap:8px}.toc-link{font-size:13px;padding:8px 12px;border-radius:12px;border:1px solid transparent;color:#1c1c1cc7;transition:transform .18s ease,border-color .18s ease,background .18s ease}.toc-link:hover{border-color:var(--line);background:#ffffff8c}.toc-link:hover{transform:translate(2px)}.tip p{margin:0;line-height:1.65}.concept-card:hover{border-color:var(--accent-soft)}.concept-title{font-weight:900;margin-bottom:6px}.mini{padding:14px}.mini-top{display:flex;gap:12px;align-items:center}.mini-symbol{width:44px;height:44px;border-radius:14px;border:1px solid rgba(28,28,28,.16);display:flex;align-items:center;justify-content:center;font-weight:1000;background:#3b82c41f}.mini-name{font-weight:900}.mini-line{margin-top:10px;color:#1c1c1cc7;line-height:1.55}.prose{line-height:1.9}.prose h2{margin-top:18px}.prose p{color:#1c1c1cd1}.footer{border-top:1px solid var(--line);background:var(--footer-bg);padding:20px 0 12px}.footer-grid{display:grid;grid-template-columns:1fr 1.2fr .8fr;gap:14px}.footer-title{font-weight:900;margin-bottom:8px}.footer-links{display:flex;flex-direction:column;gap:8px}.footer-links a{color:#1c1c1cc7}.footer-links a:hover{color:var(--accent)}.footer-bottom{margin-top:12px;padding-top:10px;border-top:1px solid var(--line)}@media (max-width: 900px){.footer-grid{grid-template-columns:1fr}}.qa{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px}.qa-item{border:1px solid var(--line);background:#ffffff8c;border-radius:14px;padding:12px}.qa-q{font-size:12px;color:var(--muted);margin-bottom:6px}.qa-a{color:#1c1c1cd1;line-height:1.6}@media (max-width: 900px){.qa{grid-template-columns:1fr}}@keyframes page-enter{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes rise{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes section-rise{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@keyframes glow-pulse{0%{opacity:.45}50%{opacity:.85}to{opacity:.45}}@keyframes breathe{0%{box-shadow:var(--shadow)}50%{box-shadow:0 16px 36px #0a12191f}to{box-shadow:var(--shadow)}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:0s!important}html,body{background-attachment:scroll,scroll}}:root[data-theme=dark-tech] .chip.active{border-color:#66d1ff99;background:linear-gradient(180deg,#66d1ff2e,#66d1ff0f);box-shadow:0 0 0 3px #66d1ff29}:root[data-theme=dark-tech] .nav-link{color:#e6edf3d1}:root[data-theme=dark-tech] .nav-link:hover{border-color:#e6edf32e;background:#e6edf314}:root[data-theme=dark-tech] .nav-link.active{border-color:#66d1ff73;background:#66d1ff29;color:var(--ink)}:root[data-theme=dark-tech] .nav-link:after{background:radial-gradient(40% 60% at 50% 0%,rgba(102,209,255,.45),transparent 70%)}:root[data-theme=dark-tech] .story-title,:root[data-theme=dark-tech] .topic-title,:root[data-theme=dark-tech] .panel-title,:root[data-theme=dark-tech] .exhibit-name{text-shadow:0 2px 14px rgba(102,209,255,.2)}:root[data-theme=dark-tech] .card,:root[data-theme=dark-tech] .hero-panel,:root[data-theme=dark-tech] .list-item,:root[data-theme=dark-tech] .topic,:root[data-theme=dark-tech] .qa-item,:root[data-theme=dark-tech] .chip,:root[data-theme=dark-tech] .btn,:root[data-theme=dark-tech] .tagchip,:root[data-theme=dark-tech] .input,:root[data-theme=dark-tech] .select,:root[data-theme=dark-tech] .pill{background:#10161fb3;border-color:#e6edf31f}:root[data-theme=dark-tech] .symbol,:root[data-theme=dark-tech] .exhibit-symbol,:root[data-theme=dark-tech] .mini-symbol{background:radial-gradient(circle at 20% 20%,#66d1ff40,#10161fb3);border-color:#e6edf329}:root[data-theme=dark-tech] .element-card:hover{border-color:var(--accent-soft)}:root[data-theme=dark-tech] .footer-links a{color:#e6edf3c7}