:root{color-scheme:light;--ink:#17231f;--muted:#66706b;--paper:#f1efe7;--card:#faf9f4;--line:#d7d8d1;--moss:#748d69;--gold:#c69242;--shadow:0 16px 44px rgba(23,35,31,.10)}
*{box-sizing:border-box}html{background:var(--paper);scroll-behavior:smooth}body{margin:0;color:var(--ink);background:linear-gradient(130deg,rgba(116,141,105,.10),transparent 30rem),var(--paper);font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Yu Gothic UI","Yu Gothic",sans-serif;-webkit-font-smoothing:antialiased}
.topbar{position:sticky;top:0;z-index:20;min-height:72px;display:grid;grid-template-columns:40px 1fr auto;gap:11px;align-items:center;padding:calc(9px + env(safe-area-inset-top)) 16px 9px;background:rgba(241,239,231,.90);backdrop-filter:blur(18px);border-bottom:1px solid rgba(23,35,31,.08)}.top-actions{display:flex;gap:7px}
.location-bar{position:sticky;top:calc(72px + env(safe-area-inset-top));z-index:19;padding:8px 12px 7px;background:rgba(241,239,231,.94);backdrop-filter:blur(18px);border-bottom:1px solid rgba(23,35,31,.08)}.location-buttons{display:flex;gap:7px;overflow-x:auto;scrollbar-width:none}.location-buttons::-webkit-scrollbar{display:none}.location-button{flex:0 0 auto;padding:8px 11px;border:1px solid var(--line);border-radius:999px;background:var(--card);color:var(--muted);font:700 10px/1 sans-serif;cursor:pointer}.location-button.active{border-color:var(--ink);background:var(--ink);color:#fff}.location-button.current{border-style:dashed}.location-bar p{min-height:0;margin:5px 3px 0;color:var(--muted);font-size:9px}.location-bar p:empty{display:none}
.brand{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:var(--ink);color:#fff;font-family:ui-serif,"Yu Mincho",serif;font-size:18px}.title-wrap p,.eyebrow{margin:0 0 3px;font-size:9px;font-weight:800;letter-spacing:.16em;color:var(--moss)}h1{margin:0;font:700 19px/1.1 ui-serif,"Yu Mincho",serif}.round-button,.mini-button{display:grid;place-items:center;border:1px solid var(--line);background:var(--card);color:var(--ink);cursor:pointer}.round-button{width:40px;height:40px;border-radius:50%}.round-button svg,.mini-button svg{width:19px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
main{width:min(100%,1100px);margin:0 auto;padding:22px 14px 44px}.info-panel{margin-bottom:18px;padding:15px 17px;border:1px solid #d8cca8;border-radius:16px;background:#f4ead2;font-size:12px;line-height:1.65}.info-panel p{margin:5px 0 0;color:#5f625d}
.intro{display:flex;justify-content:space-between;align-items:flex-end;gap:18px;padding:18px 5px 32px}.intro h2{margin:0;font:700 clamp(32px,10vw,62px)/1.08 ui-serif,"Yu Mincho",serif;letter-spacing:-.04em}.intro em{color:var(--moss);font-style:normal}.location-chip{display:none;padding:9px 13px;border:1px solid var(--line);border-radius:999px;background:var(--card);color:var(--muted);font-size:11px;white-space:nowrap}.location-chip span{display:inline-block;width:7px;height:7px;margin-right:7px;border-radius:50%;background:var(--moss)}
.source-section,.viewer-section{margin-top:10px}.section-head{display:flex;justify-content:space-between;align-items:flex-end;margin:0 3px 11px}.section-head h2{margin:0;font:700 21px/1.2 ui-serif,"Yu Mincho",serif}.section-head>span{font-size:10px;color:var(--muted)}.source-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px}.source-card{position:relative;min-height:126px;padding:15px;overflow:hidden;border:1px solid var(--line);border-radius:19px;background:var(--card);color:var(--ink);text-align:left;text-decoration:none;display:grid;grid-template-columns:1fr auto;grid-template-rows:auto 1fr auto;cursor:pointer;box-shadow:0 4px 14px rgba(23,35,31,.035);transition:transform .18s,border-color .18s,background .18s}.source-card:active{transform:scale(.98)}.source-card.active{background:var(--ink);border-color:var(--ink);color:#fff}.source-number{font:700 10px/1 ui-monospace,monospace;opacity:.45}.source-dot{width:9px;height:9px;border-radius:50%}.source-dot.wn{background:#df4e42}.source-dot.mb{background:#ef9b37}.source-dot.wy{background:#36a88b}.source-dot.jm{background:#3f7ca5}.source-card strong{grid-column:1/-1;align-self:end;font:700 15px/1.25 ui-serif,"Yu Mincho",serif}.source-card small{font-size:9px;opacity:.62}.arrow{justify-self:end;font-size:15px;opacity:.7}
.viewer-section{margin-top:30px}.viewer-head{align-items:center}.viewer-actions{display:flex;gap:7px}.mini-button{width:38px;height:38px;border-radius:12px;text-decoration:none}.mini-button.spinning svg{animation:spin .9s linear infinite}.viewer-status{display:flex;align-items:center;gap:8px;margin:0 3px 9px;color:var(--muted);font-size:10px}.viewer-status span{width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px rgba(198,146,66,.12)}.viewer-status.ready span{background:var(--moss)}
.frame-wrap{height:68vh;min-height:540px;overflow:hidden;border:1px solid #c8cbc2;border-radius:22px;background:#fff;box-shadow:var(--shadow)}iframe{display:block;width:100%;height:100%;border:0;background:#fff}.frame-note{margin:9px 4px 0;color:var(--muted);font-size:9px;line-height:1.6}
.external-note{display:grid;grid-template-columns:42px 1fr;gap:13px;margin-top:24px;padding:18px;border:1px solid var(--line);border-radius:20px;background:rgba(250,249,244,.75)}.note-icon{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:#e3e6dc;color:var(--moss);font-size:19px}.external-note h2{margin:1px 0 5px;font-size:13px}.external-note p{margin:0;color:var(--muted);font-size:11px;line-height:1.7}.external-links{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}.external-links a{padding:9px 11px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);font-size:10px;font-weight:700;text-decoration:none}footer{padding:23px 18px calc(25px + env(safe-area-inset-bottom));border-top:1px solid var(--line);color:var(--muted);text-align:center;font-size:9px;line-height:1.7}footer p{margin:2px 0}@keyframes spin{to{transform:rotate(360deg)}}
@media(min-width:700px){main{padding:32px 24px 54px}.location-chip{display:block}.source-grid{grid-template-columns:repeat(4,1fr)}.source-card{min-height:146px}.viewer-section{margin-top:40px}.frame-wrap{height:72vh;min-height:620px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation-duration:.01ms!important}}