*{margin:0;box-sizing:border-box}
body{font-family:"Noto Sans CJK SC","Noto Sans SC",sans-serif;background:var(--bg);color:var(--ink);line-height:1.7;overflow-x:hidden}
::selection{background:oklch(0.8 0.08 var(--hue))}
.mono{font-family:"Saira",monospace}
/* 开场舞台 */
.stage{position:relative;height:100vh;min-height:620px;overflow:hidden;color:#fff}
.stage .bg{position:absolute;inset:-6% 0;width:100%;height:112%;object-fit:cover;will-change:transform}
.stage .shade{position:absolute;inset:0;background:linear-gradient(100deg,oklch(0.25 0.05 var(--hue)/.26),transparent 55%)}
.stage .mistband{position:absolute;left:-10%;right:-10%;bottom:-4%;height:36%;background:radial-gradient(60% 100% at 30% 100%,oklch(0.99 0.01 var(--hue)/.95),transparent 70%);filter:blur(6px);animation:mistdrift 14s ease-in-out infinite alternate;will-change:transform}
@keyframes mistdrift{from{transform:translateX(-2.5%)}to{transform:translateX(2.5%)}}
.stage .fadeout{position:absolute;inset:auto 0 0;height:22%;background:linear-gradient(transparent,var(--bg))}
.stage .ui{position:relative;height:100%;display:flex;flex-direction:column;justify-content:space-between;padding:1.4rem clamp(1.5rem,4vw,3.5rem) 1.8rem}
.stage .row{display:flex;justify-content:space-between;align-items:center}
.stage .brand{display:flex;gap:.6rem;align-items:center;font-weight:700;text-shadow:0 1px 12px oklch(0.2 0.04 var(--hue)/.5)}
.stage .brand img{width:2rem;height:2rem;border-radius:50%;border:2px solid #fff3}
.stage nav{display:flex;gap:1.6rem;font-size:.95rem;text-shadow:0 1px 10px oklch(0.2 0.04 var(--hue)/.55)}
.stage nav a{color:#fff;text-decoration:none}
.stage .vert{position:absolute;right:clamp(1.5rem,4vw,3.5rem);top:23%;writing-mode:vertical-rl;font-size:1.35rem;font-weight:700;letter-spacing:.55em;text-shadow:0 1px 14px oklch(0.2 0.04 var(--hue)/.5)}
.stage .vert small{font-size:.78rem;font-weight:500;letter-spacing:.4em;opacity:.85;margin-top:1.2rem}
.stage h1{font-size:clamp(4.5rem,10.5vw,10rem);font-weight:900;line-height:1.02;letter-spacing:.02em;text-shadow:0 4px 34px oklch(0.22 0.05 var(--hue)/.45)}
.stage h1 .ch{display:inline-block;opacity:0;transform:translateY(.35em);animation:rise .9s cubic-bezier(.2,.7,.2,1) forwards;animation-delay:calc(var(--i)*90ms + 150ms)}
@keyframes rise{to{opacity:1;transform:none}}
.stage .sub{font-size:clamp(1rem,1.6vw,1.3rem);letter-spacing:.34em;margin-top:1rem;text-shadow:0 2px 14px oklch(0.22 0.05 var(--hue)/.5);opacity:0;animation:rise 1s .8s forwards}
.stage .meta{display:flex;gap:2.4rem;flex-wrap:wrap;font-size:.82rem;letter-spacing:.12em;color:oklch(0.35 0.04 var(--hue));border-top:1px solid oklch(0.6 0.04 var(--hue)/.35);padding-top:.8rem;margin-top:2rem;opacity:0;animation:rise 1s 1.05s forwards}
.stage .meta b{color:oklch(0.25 0.05 var(--hue))}
/* 跑马灯 */
.ticker{border-block:1px solid var(--line);background:var(--surf);overflow:hidden;padding:.45rem 0}
.ticker .belt{display:flex;gap:3rem;white-space:nowrap;width:max-content;animation:belt 30s linear infinite;font-size:.85rem;color:var(--ink2)}
.ticker b{color:var(--prid);margin-right:.5rem}
@keyframes belt{to{transform:translateX(-50%)}}
/* 账本 */
.now-layer{max-width:72rem;margin:0 auto;padding:2.8rem 1.5rem}
.now-layer h2,.streamwrap>h2{font-size:1rem;letter-spacing:.3em;color:var(--ink3);text-align:center;margin-bottom:1.3rem;font-weight:600}
.ledger{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.cell{background:var(--surf);border:1px solid var(--line);border-radius:.9rem;padding:1.1rem 1.2rem;box-shadow:4px 4px 0 oklch(0.9 0.03 var(--hue))}
.cell .k{font-size:.8rem;color:var(--ink3)}.cell .v{font-size:1.6rem;font-weight:800;margin-top:.2rem}
.cell .v small{font-size:.85rem;font-weight:500;color:var(--ink2)}.cell .s{font-size:.82rem;color:var(--ink2)}
/* 编年流 */
.streamwrap{max-width:64rem;margin:0 auto;padding:1rem 1.5rem 3rem}
.stream{position:relative;padding:1rem 0}
.stream .rail{position:absolute;left:50%;top:0;bottom:0;width:2px;background:oklch(0.9 0.02 var(--hue));transform:translateX(-50%)}
.stream .rail i{position:absolute;inset:0;background:linear-gradient(oklch(0.75 0.07 var(--hue)),oklch(0.5 0.1 var(--hue)));transform-origin:top;transform:scaleY(0)}
.node{position:relative;width:44%;margin-bottom:2.4rem}
.node:nth-child(even of .node){margin-left:auto}
.node:nth-of-type(odd){text-align:right}
.node .dot{position:absolute;top:.45rem;width:.7rem;height:.7rem;border-radius:50%;background:var(--pri);box-shadow:0 0 0 5px oklch(0.9 0.03 var(--hue));z-index:1}
.node:nth-of-type(odd) .dot{right:-9.4%}.node:nth-of-type(even) .dot{left:-9.4%}
.node h3{font-size:1.45rem;font-weight:800}.node h3 .no{font-family:"Saira";color:var(--pri);font-size:1rem;margin-right:.5rem;letter-spacing:.1em}
.node .note{color:var(--ink2);font-size:.94rem;margin-top:.25rem}
.node .date{font-family:"Saira";font-size:.78rem;color:var(--ink3);letter-spacing:.14em;margin-top:.35rem}
.node.big h3{font-size:2rem}.node.small h3{font-size:1.2rem}
.node.dip h3,.node.dip .note{color:oklch(0.5 0.02 var(--hue))}.node.dip .dot{background:oklch(0.45 0.02 var(--hue))}
/* 入场编排 */
.rv{opacity:0;transform:translateY(26px);transition:opacity .8s ease,transform .8s cubic-bezier(.2,.7,.2,1)}
.rv.on{opacity:1;transform:none}
.node.rv{transition-delay:calc(var(--d,0)*60ms)}
/* 终幕 */
.finale{max-width:46rem;margin:0 auto;padding:2.6rem 1.5rem 4.5rem;text-align:center}
.finale .live{display:inline-flex;gap:.5rem;align-items:center;font-size:.85rem;color:var(--prid);border:1px solid oklch(0.8 0.05 var(--hue));padding:.3rem .9rem;border-radius:2rem}
.finale .dot{width:.55rem;height:.55rem;border-radius:50%;background:oklch(0.68 0.15 150);animation:pulse 1.8s ease-in-out infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 oklch(0.68 0.15 150/.45)}50%{box-shadow:0 0 0 7px transparent}}
.finale h2{font-size:1.9rem;margin:1.1rem 0 .7rem}.finale p{color:var(--ink2)}
.finale .cont{margin-top:1.8rem;letter-spacing:.35em;color:var(--ink3);font-size:.88rem}
@media(max-width:760px){.ledger{grid-template-columns:1fr 1fr}.node{width:86%;margin-left:12%!important;text-align:left!important}.node .dot{left:-9.5%!important;right:auto!important}.stream .rail{left:6%}.stage .vert{display:none}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.rv{opacity:1;transform:none}}