:root{--ink: #070a12;--ink-2: #0c111d;--ink-3: #121a2a;--line: rgba(216, 178, 113, .18);--line-soft: rgba(160, 180, 220, .14);--gold: #d8b271;--gold-dim: #a98d5b;--vermilion: #c0503a;--azure: #6aa0cf;--jade: #6fae9d;--paper: #e9dfc9;--paper-dim: #b9b3a4;--muted: #8b91a3;--spring: #6fbf7a;--summer: #d8a24a;--autumn: #c87a4a;--winter: #6f9fd8;--font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", "STSong", "Times New Roman", serif;--font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;--radius: 10px;--radius-sm: 6px;--shadow: 0 10px 40px rgba(0, 0, 0, .55);--header-h: 58px}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--ink);color:var(--paper);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overscroll-behavior-y:none}body{background-image:radial-gradient(1200px 700px at 78% -10%,rgba(74,134,184,.1),transparent 62%),radial-gradient(900px 600px at 6% 8%,rgba(216,178,113,.07),transparent 60%);background-attachment:fixed}#app{min-height:100dvh;display:flex;flex-direction:column}h1,h2,h3,h4{font-family:var(--font-serif);font-weight:600;letter-spacing:.04em;margin:0}p{margin:0 0 .7em;line-height:1.85}a{color:var(--azure);text-decoration-color:#6aa0cf66;text-underline-offset:3px}a:hover{color:#8fc0e8}button{font-family:inherit;color:inherit;cursor:pointer}:focus-visible{outline:2px solid var(--gold);outline-offset:2px;border-radius:3px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.btn{display:inline-flex;align-items:center;gap:.4em;padding:.42em .85em;min-height:34px;background:#ffffff0a;border:1px solid var(--line-soft);border-radius:var(--radius-sm);color:var(--paper);font-size:.84rem;line-height:1.2;transition:background .16s,border-color .16s,color .16s;white-space:nowrap}.btn:hover{background:#d8b2711f;border-color:var(--line)}.btn[aria-pressed=true],.btn.is-active{background:#d8b27133;border-color:#d8b27180;color:#fff3dc}.btn-primary{background:#d8b27129;border-color:#d8b27166}.btn:disabled{opacity:.42;cursor:not-allowed}select,input[type=datetime-local],input[type=number]{font-family:inherit;font-size:.84rem;color:var(--paper);background:#ffffff0d;border:1px solid var(--line-soft);border-radius:var(--radius-sm);padding:.38em .5em;min-height:34px}select option{background:var(--ink-2);color:var(--paper)}.site-header{position:sticky;top:0;z-index:40;height:var(--header-h);display:flex;align-items:center;gap:1rem;padding:0 clamp(.8rem,2.4vw,1.6rem);background:#070a12d1;backdrop-filter:blur(12px) saturate(1.2);border-bottom:1px solid var(--line)}.brand{display:flex;align-items:baseline;gap:.6rem;min-width:0}.brand h1{font-size:1.06rem;white-space:nowrap}.brand .brand-sub{font-size:.72rem;color:var(--muted);letter-spacing:.16em;white-space:nowrap}@media (max-width: 620px){.brand .brand-sub{display:none}}.lang-switch{display:inline-flex;align-items:center;gap:2px;padding:2px;border:1px solid var(--line-soft);border-radius:999px;background:#ffffff0a;flex:none}.lang-btn{border:0;background:transparent;color:var(--muted);font-size:.74rem;line-height:1;padding:.4em .75em;border-radius:999px;transition:background .16s,color .16s;white-space:nowrap}.lang-btn:hover{color:var(--paper)}.lang-btn.is-active{background:#d8b27138;color:#fff3dc}@media (max-width: 720px){.lang-btn{padding:.45em .55em;font-size:.7rem}}.header-clock{margin-left:auto;display:flex;align-items:center;gap:.55rem;font-size:.78rem;color:var(--paper-dim);font-variant-numeric:tabular-nums}.header-clock .now-label{color:var(--muted)}.badge{display:inline-flex;align-items:center;gap:.32em;padding:.18em .55em;border-radius:999px;font-size:.72rem;letter-spacing:.06em;border:1px solid transparent}.badge-live{color:#9fd8b4;border-color:#78c89652;background:#5ab4821f}.badge-sim{color:#ffd28a;border-color:#d8b27180;background:#d8b27129}.precision-badge{display:inline-flex;align-items:center;padding:.16em .5em;border-radius:999px;font-size:.7rem;letter-spacing:.04em;border:1px solid currentColor;white-space:nowrap;cursor:help}.precision-badge.is-level-A{color:#9fd8b4}.precision-badge.is-level-B{color:#b9d0e8}.precision-badge.is-level-C{color:#e8cf9a}.precision-badge.is-level-D{color:#e0a882}@media (max-width: 620px){.precision-badge{font-size:.66rem}}.stage{display:grid;grid-template-columns:minmax(0,1fr) clamp(320px,26vw,400px);grid-template-rows:minmax(0,1fr) auto;gap:0;height:calc(100vh - var(--header-h));height:calc(100dvh - var(--header-h));min-height:min(460px,calc(100dvh - var(--header-h)));border-bottom:1px solid var(--line)}.viewport-column{grid-column:1;grid-row:1;display:flex;flex-direction:column;min-width:0;min-height:0;position:relative}.detail-panel{grid-column:2;grid-row:1;min-height:0}.timebar{grid-column:1 / -1;grid-row:2}.viewport-wrap{position:relative;flex:1;min-width:0;min-height:0;background:var(--ink);overflow:hidden}.viewport{position:absolute;inset:0;touch-action:none}.scene-canvas{display:block;width:100%;height:100%}.scene-labels{overflow:hidden}.orbit-label-wrap{will-change:transform}.orbit-label{pointer-events:auto;display:inline-block;transform-origin:center;padding:1px 6px;border:1px solid rgba(216,178,113,.25);border-radius:4px;background:#080c14a8;color:var(--paper-dim);font-family:var(--font-serif);font-size:12px;line-height:1.5;letter-spacing:.08em;white-space:nowrap;backdrop-filter:blur(3px);transition:color .15s,border-color .15s,background .15s}.orbit-label:hover{color:#fff;border-color:var(--gold);background:#d8b27138}.orbit-label.is-major{font-size:14px;font-weight:600;color:var(--gold);border-color:#d8b27180;background:#141008b8}.orbit-label.is-active{color:#fff6e2;border-color:var(--gold);background:#d8b27157;box-shadow:0 0 0 3px #d8b27129}.orbit-label.season-春{border-left-color:var(--spring)}.orbit-label.season-夏{border-left-color:var(--summer)}.orbit-label.season-秋{border-left-color:var(--autumn)}.orbit-label.season-冬{border-left-color:var(--winter)}.body-label{pointer-events:none;font-family:var(--font-serif);font-size:13px;letter-spacing:.16em;text-shadow:0 1px 6px rgba(0,0,0,.9);white-space:nowrap}.body-label.is-sun{color:#ffd694}.body-label.is-earth{color:#a8d0f0}.hud{position:absolute;z-index:5;pointer-events:none}.hud>*{pointer-events:auto}.hud-top{top:0;left:0;right:0;padding:clamp(.6rem,1.6vw,1rem);display:flex;align-items:flex-start;justify-content:space-between;gap:.5rem;flex-wrap:wrap}.term-card{max-width:min(100%,480px);background:linear-gradient(160deg,#0c111ddb,#090d16b3);border:1px solid var(--line);border-left:3px solid var(--gold);border-radius:var(--radius);padding:.7rem .9rem .8rem;backdrop-filter:blur(10px);box-shadow:var(--shadow)}.term-card .term-head{display:flex;align-items:baseline;gap:.55rem;flex-wrap:wrap}.term-card .term-name{font-family:var(--font-serif);font-size:clamp(1.5rem,3.6vw,2rem);line-height:1.1;color:#fff6e4;letter-spacing:.08em}.term-card .term-pinyin{font-size:.76rem;color:var(--muted);letter-spacing:.1em}.term-card .term-season{font-size:.74rem;padding:.1em .5em;border-radius:999px;border:1px solid currentColor;opacity:.9}.season-chip-春{color:var(--spring)}.season-chip-夏{color:var(--summer)}.season-chip-秋{color:var(--autumn)}.season-chip-冬{color:var(--winter)}.term-card dl{margin:.6rem 0 0;display:grid;grid-template-columns:auto 1fr;gap:.2rem .7rem;font-size:.8rem}.term-card dt{color:var(--muted);white-space:nowrap}.term-card dd{margin:0;color:var(--paper);font-variant-numeric:tabular-nums}.term-progress{margin-top:.7rem}.term-progress .bar{height:3px;border-radius:2px;background:#ffffff1a;overflow:hidden}.term-progress .bar span{display:block;height:100%;background:linear-gradient(90deg,var(--gold-dim),var(--gold));transition:width .2s linear}.term-progress .meta{display:flex;justify-content:space-between;font-size:.72rem;color:var(--muted);margin-top:.3rem;gap:.5rem}.hud-controls{display:flex;flex-direction:column;align-items:flex-end;gap:.45rem;margin-left:auto;max-width:100%}.term-pill{display:none;align-items:center;gap:.45rem;padding:.3rem .7rem;border-radius:999px;border:1px solid var(--line);border-left:3px solid var(--gold);background:#0a0e18db;backdrop-filter:blur(8px);font-size:.82rem;white-space:nowrap;overflow:hidden}.term-pill .pill-name{font-family:var(--font-serif);font-size:1rem;color:#fff6e4;letter-spacing:.06em}.term-pill .pill-lon{color:var(--gold);font-variant-numeric:tabular-nums}.term-pill .pill-phi{color:var(--azure);font-variant-numeric:tabular-nums;border-left:1px solid var(--line-soft);padding-left:.45rem}@media (max-width: 400px){.term-pill{font-size:.74rem;gap:.35rem;padding:.28rem .55rem}.term-pill .pill-name{font-size:.94rem}}.hud-btn-row{display:flex;gap:.35rem;flex-wrap:wrap;justify-content:flex-end}.hud-panel{background:#0a0e18d1;border:1px solid var(--line-soft);border-radius:var(--radius);padding:.55rem .7rem;backdrop-filter:blur(10px);font-size:.78rem;max-width:260px}.toggle-grid{display:grid;grid-template-columns:1fr 1fr;gap:.25rem .7rem}.toggle{display:flex;align-items:center;gap:.35rem;cursor:pointer;color:var(--paper-dim);padding:.15rem 0;white-space:nowrap}.toggle:hover{color:var(--paper)}.toggle input{accent-color:var(--gold);width:14px;height:14px;margin:0}.map-note-block{position:absolute;left:0;bottom:0;padding:0 clamp(.6rem,1.6vw,1rem) clamp(.6rem,1.6vw,1rem);max-width:min(94%,580px);pointer-events:none}.map-note-block>*{pointer-events:auto}.map-note{font-size:.72rem;line-height:1.7;color:var(--muted);background:#080b13b8;border:1px solid var(--line-soft);border-radius:var(--radius-sm);padding:.45rem .65rem;backdrop-filter:blur(6px);margin:0}.map-note b{color:var(--gold);font-weight:600}.map-note code{font-family:ui-monospace,Cascadia Mono,Consolas,monospace;color:var(--azure);font-size:.95em}.map-note-compact{font-variant-numeric:tabular-nums}.map-note-toggle{display:none;margin-top:.3rem;padding:.25em .6em;min-height:28px;font-size:.72rem;color:var(--paper-dim);background:#080b13b8;border:1px solid var(--line-soft);border-radius:var(--radius-sm)}.map-note-toggle:hover{color:var(--paper);border-color:var(--line)}@media (max-width: 900px){.map-note-toggle{display:inline-block}}.scale-warning{position:absolute;z-index:6;bottom:0;right:0;margin:clamp(.7rem,1.6vw,1.1rem);font-size:.7rem;letter-spacing:.04em;color:#e0b978;background:#30200899;border:1px solid rgba(216,178,113,.34);border-radius:999px;padding:.22rem .7rem;pointer-events:none}.overlay{position:absolute;inset:0;z-index:20;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.9rem;text-align:center;padding:1.5rem;background:radial-gradient(circle at 50% 45%,#0e1422f0,#070a12fa)}.overlay h3{font-size:1rem;color:var(--gold)}.overlay p{font-size:.82rem;color:var(--muted);max-width:34ch;margin:0}.spinner{width:34px;height:34px;border-radius:50%;border:2px solid rgba(216,178,113,.2);border-top-color:var(--gold);animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.load-bar{width:min(240px,60vw);height:3px;background:#ffffff1a;border-radius:2px;overflow:hidden}.load-bar span{display:block;height:100%;background:var(--gold);transition:width .2s}.offset-note{margin:.55rem 0 0;font-size:.72rem;line-height:1.7;color:#e0b978}.texture-warning{position:absolute;z-index:7;top:50%;left:0;margin-left:clamp(.7rem,1.6vw,1.1rem);transform:translateY(-50%);max-width:230px;font-size:.7rem;line-height:1.6;color:#e6c48c;background:#30220ab8;border:1px solid rgba(216,178,113,.3);border-radius:var(--radius-sm);padding:.4rem .6rem}.detail-panel{border-left:1px solid var(--line);background:linear-gradient(180deg,#0c111deb,#090c14f5);overflow-y:auto;overscroll-behavior:contain;padding:1rem 1.1rem 2rem;scrollbar-width:thin;scrollbar-color:rgba(216,178,113,.3) transparent}.detail-panel::-webkit-scrollbar{width:8px}.detail-panel::-webkit-scrollbar-thumb{background:#d8b2713d;border-radius:4px}.detail-head{display:flex;align-items:baseline;gap:.5rem;flex-wrap:wrap;padding-bottom:.6rem;border-bottom:1px solid var(--line);margin-bottom:.8rem}.detail-head .name{font-family:var(--font-serif);font-size:1.7rem;color:#fff6e4;letter-spacing:.08em}.detail-head .idx{font-size:.72rem;color:var(--muted)}.detail-head .name-zh{font-family:var(--font-serif);font-size:.86rem;color:var(--muted);letter-spacing:.08em}.muted-sm{color:var(--muted);font-size:.72rem}.muted-sm-body{font-size:.8rem}.muted-xs{font-size:.72rem;color:var(--muted);margin-top:.35rem}.term-progress-flush{margin:-.4rem 0 .9rem}.detail-actions{display:flex;gap:.5rem;flex-wrap:wrap}.muted-inline{color:var(--muted)}.footer-scale{color:#6b7284}.detail-moment{display:grid;grid-template-columns:auto 1fr;gap:.28rem .7rem;font-size:.8rem;background:#d8b27112;border:1px solid var(--line);border-radius:var(--radius-sm);padding:.55rem .7rem;margin-bottom:.9rem}.detail-moment dt{color:var(--muted);white-space:nowrap}.detail-moment dd{margin:0;font-variant-numeric:tabular-nums;color:var(--paper);overflow-wrap:anywhere}.detail-moment dd em{font-style:normal;color:var(--gold)}.detail-section{margin-bottom:.95rem}.detail-section h4{font-size:.82rem;color:var(--gold);letter-spacing:.14em;margin-bottom:.32rem;display:flex;align-items:center;gap:.4rem}.detail-section h4:before{content:"";width:3px;height:12px;background:var(--gold);border-radius:1px;opacity:.75}.detail-section p{font-size:.83rem;color:#cdc7b8;margin:0;line-height:1.82}.pentads{display:flex;flex-direction:column;gap:.3rem;margin:.45rem 0 0;padding:0;list-style:none}.pentad{display:flex;flex-wrap:wrap;align-items:baseline;gap:.4rem;font-size:.78rem;line-height:1.6;border-left:2px solid rgba(111,174,157,.45);padding:.1rem 0 .1rem .55rem}.pentad-label{flex:none;color:var(--jade);font-size:.72rem;letter-spacing:.04em}.pentad-text{color:#c3cccb}.pentad-original{font-family:var(--font-serif);color:var(--muted);font-size:.76rem;letter-spacing:.06em;opacity:.8}.poem{border-left:2px solid rgba(216,178,113,.4);padding:.15rem 0 .15rem .7rem;margin-top:.35rem}.poem .verse{font-family:var(--font-serif);font-size:.94rem;color:#f0e4cb;line-height:1.9;letter-spacing:.06em}.poem .verse-original{font-family:var(--font-serif);font-size:.86rem;color:var(--muted);line-height:1.9;letter-spacing:.1em;margin-top:.15rem;opacity:.85}.poem .attr{font-size:.73rem;color:var(--muted);margin-top:.18rem}.proverb{font-size:.79rem;color:#cdbf9d;margin-top:.3rem;display:flex;flex-wrap:wrap;align-items:baseline;gap:.4rem}.proverb-label{flex:none;color:var(--gold-dim);font-size:.72rem}.proverb-original{font-family:var(--font-serif);color:var(--muted);font-size:.78rem;letter-spacing:.06em;opacity:.85}.timebar{flex:none;z-index:30;background:#080b13f0;backdrop-filter:blur(14px) saturate(1.15);border-top:1px solid var(--line);padding-top:.6rem}@media (max-width: 900px){.timebar{padding-top:.45rem;--timebar-pad-x: .6rem;--timebar-pad-bottom: .5rem}.timebar-row{gap:.3rem}.timebar-row+.timebar-row{margin-top:.4rem}.play-btn{width:36px;height:36px;font-size:13px;flex:none}.field{font-size:.72rem;gap:.25rem}.btn,select,input[type=datetime-local],input[type=number]{min-height:32px}.btn{padding:.3em .6em;font-size:.78rem}.year-stepper button{width:26px;height:32px}.year-stepper input{width:4.4em}.timebar-status{font-size:.74rem;gap:.35rem}}.timebar-row{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap}.timebar-row+.timebar-row{margin-top:.55rem}.transport{display:flex;align-items:center;gap:.35rem}.play-btn{width:40px;height:40px;border-radius:50%;border:1px solid rgba(216,178,113,.45);background:#d8b27129;color:#ffeec9;display:grid;place-items:center;font-size:15px;transition:background .16s}.play-btn:hover{background:#d8b2714d}.field{display:flex;align-items:center;gap:.35rem;font-size:.78rem;color:var(--muted)}.field label{white-space:nowrap}.year-stepper{display:flex;align-items:center;border:1px solid var(--line-soft);border-radius:var(--radius-sm);overflow:hidden;background:#ffffff0a}.year-stepper button{background:transparent;border:0;color:var(--paper);width:30px;height:34px;font-size:15px;line-height:1}.year-stepper button:hover:not(:disabled){background:#d8b27129}.year-stepper button:disabled{opacity:.3;cursor:not-allowed}.year-stepper input{width:6.2em;-moz-appearance:textfield;appearance:textfield;text-align:center;border:0;border-left:1px solid var(--line-soft);border-right:1px solid var(--line-soft);background:transparent;border-radius:0;font-variant-numeric:tabular-nums}.timebar-status{margin-left:auto;display:flex;align-items:center;gap:.5rem;font-size:.78rem;color:var(--paper-dim);font-variant-numeric:tabular-nums}.timeline{position:relative;padding-top:2px}.timeline input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:22px;background:transparent;margin:0;display:block;cursor:pointer}.timeline input[type=range]::-webkit-slider-runnable-track{height:4px;border-radius:3px;background:linear-gradient(90deg,#1b2740,#26344f)}.timeline input[type=range]::-moz-range-track{height:4px;border-radius:3px;background:linear-gradient(90deg,#1b2740,#26344f)}.timeline input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;margin-top:-6px;border-radius:50%;background:var(--gold);border:2px solid #1a1408;box-shadow:0 0 0 3px #d8b27138}.timeline input[type=range]::-moz-range-thumb{width:14px;height:14px;border-radius:50%;background:var(--gold);border:2px solid #1a1408}.tick-strip{position:relative;height:16px;margin-top:-4px;overflow:hidden}.tick{position:absolute;top:0;width:12px;height:14px;margin-left:-6px;padding:0;background:transparent;border:0;display:grid;place-items:start center}.tick i{display:block;width:1px;height:7px;background:#a0b4dc6b;transition:height .14s,background .14s}.tick.is-major i{height:11px;background:#d8b271d9;width:2px}.tick:hover i,.tick:focus-visible i{height:13px;background:#fff}.tick.is-current i{background:var(--vermilion);width:2px;height:13px}.timeline-axis{display:flex;justify-content:space-between;font-size:.68rem;color:var(--muted);margin-top:2px;font-variant-numeric:tabular-nums}.reading{padding:clamp(1.6rem,4vw,3.4rem) clamp(.9rem,4vw,3rem) 4rem;max-width:1180px;margin:0 auto;width:100%}.section{margin-bottom:clamp(2.4rem,5vw,4rem);scroll-margin-top:calc(var(--header-h) + 12px)}.section-title{display:flex;align-items:baseline;gap:.8rem;margin-bottom:.5rem;flex-wrap:wrap}.section-title h2{font-size:clamp(1.25rem,2.4vw,1.7rem);color:#f4ead6}.section-title .num{font-family:var(--font-serif);font-size:.8rem;color:var(--gold-dim);letter-spacing:.3em}.section-title:after{content:"";flex:1;height:1px;min-width:40px;background:linear-gradient(90deg,var(--line),transparent)}.section-intro{color:#b8b2a4;font-size:.9rem;max-width:76ch;line-height:1.95;margin-bottom:1.4rem}.section-intro strong{color:var(--gold);font-weight:600}.season-band{margin-bottom:1.5rem}.season-band-title{display:flex;align-items:center;gap:.5rem;font-family:var(--font-serif);font-size:.95rem;margin-bottom:.6rem;color:#e3d9c4}.season-band-title .dot{width:8px;height:8px;border-radius:50%}.season-band-title .range{font-family:var(--font-sans);font-size:.7rem;color:var(--muted);letter-spacing:0}.term-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(148px,1fr));gap:.5rem}.term-chip{text-align:left;padding:.55rem .7rem;border-radius:var(--radius-sm);border:1px solid var(--line-soft);background:#ffffff07;color:var(--paper);display:flex;flex-direction:column;gap:.14rem;transition:background .16s,border-color .16s,transform .16s}.term-chip:hover{background:#d8b2711a;border-color:var(--line);transform:translateY(-1px)}.term-chip.is-current{background:#d8b27129;border-color:#d8b2718c;box-shadow:0 0 0 1px #d8b27133}.term-chip .chip-top{display:flex;align-items:baseline;justify-content:space-between;gap:.4rem}.term-chip .chip-name{font-family:var(--font-serif);font-size:1.02rem;letter-spacing:.06em}.term-chip .chip-lon{font-size:.68rem;color:var(--gold-dim);font-variant-numeric:tabular-nums}.term-chip .chip-time{font-size:.72rem;color:var(--muted);font-variant-numeric:tabular-nums}.term-chip .chip-major{font-size:.62rem;color:var(--vermilion);border:1px solid rgba(192,80,58,.45);border-radius:3px;padding:0 3px;margin-left:4px;vertical-align:2px}.timeline-list{position:relative;padding-left:1.6rem}.timeline-list:before{content:"";position:absolute;left:5px;top:6px;bottom:6px;width:1px;background:linear-gradient(180deg,transparent,var(--line) 8%,var(--line) 92%,transparent)}.hist-item{position:relative;padding:0 0 1.35rem}.hist-item:before{content:"";position:absolute;left:-1.6rem;top:7px;width:11px;height:11px;border-radius:50%;border:2px solid var(--gold-dim);background:var(--ink)}.hist-item.is-key:before{border-color:var(--gold);background:var(--gold);box-shadow:0 0 0 4px #d8b27129}.hist-era{display:flex;align-items:baseline;gap:.6rem;flex-wrap:wrap;margin-bottom:.22rem}.hist-era .era{font-size:.72rem;letter-spacing:.14em;color:var(--gold);border:1px solid var(--line);border-radius:3px;padding:.05em .5em}.hist-era .year{font-family:var(--font-serif);font-size:.86rem;color:var(--paper-dim)}.hist-item h3{font-size:.98rem;color:#f0e6d2;margin-bottom:.24rem}.hist-item p{font-size:.85rem;color:#b6b0a2;line-height:1.85;margin:0}.hist-source{font-size:.72rem;color:var(--muted);margin-top:.28rem}.hist-source:before{content:"出处 · ";color:var(--gold-dim)}.culture-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(272px,1fr));gap:1rem}.culture-card{border:1px solid var(--line-soft);border-radius:var(--radius);background:linear-gradient(165deg,#121a2a99,#0a0e1880);padding:1rem 1.1rem 1.15rem;position:relative;overflow:hidden}.culture-card:after{content:"";position:absolute;inset:0 0 auto;height:2px;background:linear-gradient(90deg,var(--gold),transparent 70%);opacity:.45}.culture-card .icon{font-size:1.3rem;line-height:1}.culture-card h3{font-size:1rem;margin:.35rem 0 .4rem;color:#f2e8d4}.culture-card .summary{font-size:.84rem;color:#b9b3a5;line-height:1.8;margin-bottom:.6rem}.culture-card ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:.5rem}.culture-card li{font-size:.8rem;color:#a9a496;line-height:1.78;padding-left:.85rem;position:relative}.culture-card li:before{content:"";position:absolute;left:0;top:.66em;width:4px;height:4px;border-radius:50%;background:var(--gold-dim)}.song-wrap{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:1.6rem;align-items:start}@media (max-width: 880px){.song-wrap{grid-template-columns:1fr}}.song-lines{display:flex;flex-direction:column;gap:1.05rem}.song-line{border-left:2px solid var(--line);padding-left:.9rem}.song-line .line-summary{font-size:.78rem;color:var(--muted);margin-top:.4rem;line-height:1.8}.song-chars{display:flex;gap:.28rem;flex-wrap:wrap}.song-char{font-family:var(--font-serif);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.1em;min-width:2.6em;padding:.28em .35em .22em;border-radius:var(--radius-sm);border:1px solid transparent;background:transparent;color:var(--paper);transition:background .15s,color .15s,border-color .15s,transform .15s}.song-char-glyph{font-size:clamp(1.3rem,3vw,1.75rem);line-height:1}.song-char-pinyin{font-family:var(--font-sans);font-size:.62rem;letter-spacing:.02em;color:var(--muted);line-height:1.2;white-space:nowrap}.song-char.is-term:hover .song-char-pinyin,.song-char.is-term.is-current .song-char-pinyin{color:inherit;opacity:.85}.chip-now{color:var(--gold)}.song-char.is-term:hover{background:#d8b27124;border-color:var(--line);transform:translateY(-2px)}.song-char.is-term.is-current{background:#d8b27142;border-color:var(--gold);color:#fff6e2}.song-char.is-filler{color:#565d6e;cursor:default;border-bottom:1px dashed rgba(120,130,150,.3)}.song-legend{border:1px solid var(--line-soft);border-radius:var(--radius);background:#0a0e1899;padding:1rem 1.1rem;position:sticky;top:calc(var(--header-h) + 12px)}.song-legend .legend-head{display:flex;align-items:baseline;gap:.5rem;flex-wrap:wrap;margin-bottom:.5rem}.song-legend .legend-char{font-family:var(--font-serif);font-size:1.9rem;color:var(--gold);line-height:1}.song-legend .legend-pinyin{font-size:.82rem;color:var(--muted);letter-spacing:.04em}.song-legend .legend-term{font-family:var(--font-serif);font-size:1.15rem;color:#fff6e4}.song-legend .legend-lon{font-size:.75rem;color:var(--muted)}.song-legend p{font-size:.83rem;color:#bab4a6;line-height:1.85;margin:0 0 .7rem}.song-legend .hint{font-size:.76rem;color:var(--muted)}.song-legend .legend-from{font-size:.78rem;color:var(--muted)}.song-hint{font-size:.76rem;color:var(--muted);margin:0}.faq-list{display:flex;flex-direction:column;gap:.6rem}.faq{border:1px solid var(--line-soft);border-radius:var(--radius);background:#ffffff06;overflow:hidden}.faq summary{cursor:pointer;padding:.85rem 1rem;font-family:var(--font-serif);font-size:.98rem;color:#f0e6d2;list-style:none;display:flex;align-items:center;gap:.6rem}.faq summary::-webkit-details-marker{display:none}.faq summary:before{content:"问";font-size:.68rem;color:var(--gold);border:1px solid var(--line);border-radius:3px;padding:.05em .36em;flex:none}.faq summary:after{content:"＋";margin-left:auto;color:var(--muted);font-size:.9rem;transition:transform .2s}.faq[open] summary:after{content:"－"}.faq summary:hover{background:#d8b27112}.faq-body{padding:0 1rem 1rem}.faq-body p{font-size:.85rem;color:#b6b0a2;line-height:1.9}.key-points{margin:.6rem 0 0;padding:0;list-style:none;display:flex;flex-direction:column;gap:.35rem}.key-points li{font-size:.8rem;color:#a9a496;padding-left:1.1rem;position:relative;line-height:1.75}.key-points li:before{content:"✓";position:absolute;left:0;color:var(--jade);font-size:.75rem}.sources{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:.6rem 1.4rem}.source-item{font-size:.8rem;line-height:1.75;color:#a9a496;padding-bottom:.6rem;border-bottom:1px solid rgba(160,180,220,.08);overflow-wrap:anywhere;word-break:break-word}.source-item a{overflow-wrap:anywhere;word-break:break-all}.source-item .src-title{color:#ddd4c0}.source-item .src-pub{color:var(--muted);font-size:.74rem}.source-item .src-note{display:block;color:#7d8494;font-size:.72rem;margin-top:.15rem}.data-note{margin-top:1.2rem;border:1px solid var(--line);border-left:3px solid var(--gold-dim);border-radius:var(--radius-sm);background:#d8b2710d;padding:.85rem 1rem;font-size:.82rem;color:#b9b3a5;line-height:1.9}.data-note h3{font-size:.86rem;color:var(--gold);margin-bottom:.35rem;letter-spacing:.1em}.site-footer{border-top:1px solid var(--line);padding:1.6rem clamp(.9rem,4vw,3rem) 2.4rem;font-size:.76rem;color:var(--muted);line-height:1.9;text-align:center}.site-footer p{margin:0 0 .3rem}@media (max-width: 1080px){.stage{grid-template-columns:minmax(0,1fr) 330px}}@media (max-width: 900px){.stage{grid-template-columns:1fr;grid-template-rows:auto auto auto;height:auto;min-height:0}.viewport-column{grid-column:1;grid-row:1}.timebar{grid-column:1;grid-row:2}.detail-panel{grid-column:1;grid-row:3;border-left:0;border-top:1px solid var(--line);max-height:none;overflow:visible;padding:1rem clamp(.8rem,3vw,1.4rem) 1.4rem}.viewport-wrap{height:min(58svh,440px);height:min(58dvh,440px);min-height:280px;flex:none}.hud-top{flex-direction:column;align-items:stretch;gap:.4rem;padding:.5rem}.only-desktop{display:none!important}.term-pill{display:inline-flex;align-self:flex-start;max-width:100%}.hud-controls{align-items:stretch;margin-left:0}.hud-btn-row{justify-content:flex-start;gap:.3rem}.hud-btn-row .btn{font-size:.76rem;padding:.28em .6em;min-height:30px;flex:0 1 auto}.hud-panel{max-width:100%}.toggle-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.map-note-block{position:static;max-width:100%;padding:.45rem .7rem .1rem;display:flex;flex-wrap:wrap;align-items:center;gap:.3rem}.map-note-block .map-note-compact{flex:1 1 auto;min-width:0}.map-note-block .map-note-toggle{flex:none;margin-top:0}.map-note-block #map-note-full{flex:1 1 100%;margin-top:.3rem}}@media (min-width: 901px){.only-mobile{display:none!important}.map-note-compact{display:none}}@media (hover: none) and (pointer: coarse){.viewport,.scene-canvas{touch-action:pan-y!important}select,input[type=datetime-local],input[type=number]{font-size:16px}.tick-strip{height:30px}.tick{width:20px;height:30px;margin-left:-10px;place-items:start center}.tick i{height:12px;margin-top:6px}.tick.is-major i{height:16px}.tick.is-current i{height:18px}.orbit-label{display:inline-flex;align-items:center;min-height:30px;padding:.15em .6em;font-size:13px}.orbit-label.is-major{font-size:15px;min-height:34px}}select,input[type=datetime-local],input[type=number]{-webkit-appearance:none;appearance:none}.year-stepper input::-webkit-outer-spin-button,.year-stepper input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}select{padding-right:1.7em;background-image:linear-gradient(45deg,transparent 50%,var(--gold-dim) 50%),linear-gradient(135deg,var(--gold-dim) 50%,transparent 50%);background-position:calc(100% - 13px) calc(50% + 1px),calc(100% - 8px) calc(50% + 1px);background-size:5px 5px,5px 5px;background-repeat:no-repeat}input[type=datetime-local]::-webkit-calendar-picker-indicator{filter:invert(.75) sepia(.35) saturate(2) hue-rotate(340deg);opacity:.75;cursor:pointer}:root{--timebar-pad-x: clamp(.7rem, 2.2vw, 1.5rem);--timebar-pad-bottom: .7rem}.site-header{padding-left:max(clamp(.8rem,2.4vw,1.6rem),env(safe-area-inset-left));padding-right:max(clamp(.8rem,2.4vw,1.6rem),env(safe-area-inset-right))}.timebar{padding-left:max(var(--timebar-pad-x),env(safe-area-inset-left));padding-right:max(var(--timebar-pad-x),env(safe-area-inset-right));padding-bottom:calc(var(--timebar-pad-bottom) + env(safe-area-inset-bottom))}.reading,.site-footer{padding-left:max(clamp(.9rem,4vw,3rem),env(safe-area-inset-left));padding-right:max(clamp(.9rem,4vw,3rem),env(safe-area-inset-right))}.site-footer{padding-bottom:calc(2.4rem + env(safe-area-inset-bottom))}@media (max-height: 520px) and (orientation: landscape){.viewport-wrap{height:210px;min-height:170px}.hud-top{padding:.35rem}.map-note-block{display:none}:root{--header-h: 46px}}@media (max-width: 620px) and (max-height: 700px){.viewport-wrap{height:min(52svh,330px);height:min(52dvh,330px);min-height:240px}}@media (max-width: 620px){:root{--header-h: 52px}.header-clock .now-label{display:none}.viewport-wrap{height:min(56svh,400px);height:min(56dvh,400px);min-height:270px}.timebar-main{display:grid;grid-template-columns:auto minmax(0,auto) minmax(0,auto);grid-template-areas:"transport speed year" "datetime datetime datetime" "status status today";align-items:center;gap:.35rem .4rem}.tb-transport{grid-area:transport}.tb-speed{grid-area:speed;min-width:0}.tb-year{grid-area:year;justify-self:end}.tb-datetime{grid-area:datetime;min-width:0}.tb-today{grid-area:today;justify-self:end}.tb-status{grid-area:status;min-width:0;flex-wrap:wrap}.tb-offset{color:var(--muted);font-size:.72rem}#speed-select{max-width:6.6em}#datetime-input{flex:1 1 auto;min-width:0;width:100%}#datetime-input::-webkit-calendar-picker-indicator{display:none}.year-stepper input{width:5em}.timebar-timeline{margin-top:.35rem}.tick-strip,.tick{height:26px}.term-card dl{grid-template-columns:auto 1fr;font-size:.76rem}.toggle-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.term-grid{grid-template-columns:repeat(auto-fill,minmax(124px,1fr))}.timeline-axis{font-size:.62rem}}@media (prefers-reduced-motion: reduce){*{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}.spinner{animation:none;border-top-color:var(--gold-dim)}}