:root { --bg: #0f0f12; --card: #16161a; --text: #e6e6e6; --muted: #b3b3b3; --accent: #5ac8fa; --header-bg: rgba(15,15,18,0.9); --border: #222; --chip-bg: #1b1b1f }
body[data-theme="light"] { --bg: #f7f7f9; --card: #ffffff; --text: #111111; --muted: #606060; --accent: #0066cc; --header-bg: rgba(255,255,255,0.85); --border: #e0e0e0; --chip-bg: #f0f0f5 }
* { box-sizing: border-box }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Noto Sans", "PingFang SC", "Microsoft YaHei", sans-serif }
.header { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; position: sticky; top: 0; background: var(--header-bg); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); flex-wrap: wrap; gap: 8px }
.header h1 { font-size: 18px; margin: 0 }
.lang-switch { display: flex; gap: 8px; align-items: center }
select { background: var(--card); color: var(--text); border: 1px solid var(--border); padding: 6px 10px; border-radius: 6px }
#content { max-width: 960px; margin: 24px auto; padding: 0 16px }
.empty { text-align: center; color: var(--muted); padding: 40px }
.timeline { display: grid; grid-template-columns: 1fr; gap: 16px }
@media (min-width: 800px) { .timeline { grid-template-columns: 1fr 1fr } }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px }
.card h2 { margin: 0 0 8px 0; font-size: 18px }
.summary { color: var(--muted); margin: 8px 0 12px 0 }
.meta { display: grid; gap: 6px; margin-bottom: 10px }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px }
.tag { font-size: 11px; padding: 2px 8px; border: 1px solid var(--border); border-radius: 999px; color: var(--muted) }
.events { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px }
.events li { display: grid; grid-template-columns: 80px 1fr; gap: 8px; align-items: start }
.year { color: var(--accent); font-weight: 600 }
.year-filter { display: grid; gap: 6px; align-items: center; justify-items: end; padding-left: 16px }
.year-inputs { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; width: 280px }
.year-inputs { position: relative }
.range-overlay { position: absolute; top: -18px; left: 0; right: 0; height: 16px; pointer-events: none; opacity: 0; transition: opacity 0.15s ease }
.range-overlay.visible { opacity: 1 }
.range-overlay .tick-lbl { position: absolute; transform: translateX(-50%); font-size: 11px; color: var(--muted) }
.year-display { font-size: 13px; color: var(--text); font-weight: 600 }
.filters { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; padding: 8px 16px; width: 100% }
.controls { display: inline-flex; align-items: center; gap: 8px }
.controls #search { width: 180px }
.chips { display: flex; flex-wrap: wrap; gap: 6px }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border: 1px solid var(--border); border-radius: 999px; background: var(--chip-bg); color: var(--text); cursor: pointer; user-select: none }
.chip.active { background: var(--accent); color: #0e0e10; border-color: var(--accent); font-weight: 600 }
#search { background: var(--card); color: var(--text); border: 1px solid var(--border); padding: 6px 10px; border-radius: 6px }
.axis { position: relative; margin: 8px 0 12px 0 }
.axis-line { height: 2px; background: var(--border); position: relative; border-radius: 2px }
.axis-ticks { position: relative; height: 32px; margin-top: 6px }
.tick { position: absolute; transform: translateX(-50%); top: 0; font-size: 12px; color: var(--text) }
.tick::before { content: ""; position: absolute; top: 16px; left: 50%; transform: translateX(-50%); width: 1px; height: 8px; background: var(--border) }
.subtick { position: absolute; transform: translateX(-50%); top: 18px; width: 1px; height: 6px; background: var(--muted) }
.axis-markers { position: relative; height: 12px; margin-top: 6px }
.marker { position: absolute; width: 10px; height: 10px; background: var(--accent); border-radius: 50%; transform: translate(-50%, -50%); top: 50% }
.filters select { background: var(--card); color: var(--text); border: 1px solid var(--border); padding: 6px 10px; border-radius: 6px }