:root{color-scheme:light;--ink: #231d18;--muted: #6f6458;--paper: #fbf5e8;--line: rgba(64, 52, 42, .18);--accent: #1f7a68;--danger: #9e3e2d;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:#efe6d4;color:var(--ink)}button,input,select{font:inherit}button{cursor:pointer}.app-shell{display:grid;grid-template-rows:auto 1fr;min-height:100vh}.topbar{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:18px 24px;border-bottom:1px solid var(--line);background:#fbf5e8db;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.brand{display:flex;align-items:center;gap:14px;min-width:220px}.brand-mark{width:36px;height:36px;border-radius:50%;background:conic-gradient(from 210deg,#9e3e2d,#d29a31,#1f7a68,#9e3e2d);box-shadow:0 8px 24px #4a341f2e}.eyebrow{margin:0 0 2px;color:var(--muted);font-size:11px;font-weight:700;letter-spacing:0;text-transform:uppercase}h1{margin:0;font-family:Songti SC,"Noto Serif SC",serif;font-size:clamp(24px,3vw,38px);line-height:1}.controls{display:flex;align-items:center;justify-content:flex-end;gap:10px;flex-wrap:wrap}.search{position:relative;display:flex;align-items:center;gap:8px;min-width:min(420px,100%);padding:0 12px;height:42px;border:1px solid var(--line);border-radius:8px;background:#fffcf5cc}.search span{color:var(--muted);font-size:13px;white-space:nowrap}.search input{width:100%;border:0;outline:0;background:transparent;color:var(--ink)}.search-popover{position:absolute;z-index:5;top:calc(100% + 8px);right:0;left:0;display:grid;gap:2px;padding:8px;border:1px solid var(--line);border-radius:8px;background:#fffcf5f5;box-shadow:0 20px 60px #3d2d1f29}.search-popover button{display:flex;justify-content:space-between;gap:14px;width:100%;padding:10px;border:0;border-radius:6px;background:transparent;color:var(--ink);text-align:left}.search-popover button:hover{background:#1f7a681a}select{height:42px;border:1px solid var(--line);border-radius:8px;padding:0 12px;background:#fffcf5d1;color:var(--ink)}.river-panel{position:relative;min-height:0;overflow:hidden}.timeline-canvas{display:block;width:100%;height:100%;touch-action:none}.status-strip{position:absolute;right:18px;bottom:18px;display:flex;gap:8px;flex-wrap:wrap}.status-strip span,.event-chip{padding:7px 10px;border:1px solid rgba(35,29,24,.14);border-radius:999px;background:#fffcf5b3;color:var(--muted);font-size:12px;font-weight:700}.detail-panel{position:absolute;top:24px;right:24px;width:min(360px,calc(100% - 48px));padding:20px;border:1px solid rgba(35,29,24,.14);border-radius:8px;background:#fffcf5e0;box-shadow:0 24px 70px #3d2d1f2e;-webkit-backdrop-filter:blur(22px);backdrop-filter:blur(22px)}.detail-panel p{margin:0 0 10px;color:var(--muted)}.detail-panel h2{margin:0 0 12px;font-size:24px}.detail-panel .summary{margin-top:16px;color:var(--ink);line-height:1.7}.close-button{position:absolute;top:10px;right:10px;width:30px;height:30px;border:0;border-radius:50%;background:#231d1814;color:var(--ink);font-size:20px;line-height:1}.api-error{position:absolute;left:24px;bottom:24px;margin:0;padding:10px 12px;border-radius:8px;background:#9e3e2d1f;color:var(--danger)}@media(max-width:760px){.topbar{align-items:stretch;flex-direction:column;padding:14px}.controls{justify-content:stretch}.search,select{width:100%}.river-panel{min-height:72vh}}