/* 線上時鐘頁專用樣式；共用元件沿用 site.css */
.oc-stage { --oc-bg: #fff; --oc-fg: #111827; --oc-sub: #4b5563; --oc-line: #cbd5e1; --oc-accent: #b91c1c;
  background: var(--oc-bg); color: var(--oc-fg); border-radius: 12px; padding: 16px 12px 12px; text-align: center; overflow: hidden; box-sizing: border-box; }
.oc-stage.oc-dark { --oc-bg: #0b1020; --oc-fg: #e6edf7; --oc-sub: #aab6c8; --oc-line: #475569; --oc-accent: #f87171; }
.oc-stage [hidden] { display: none !important; }
.oc-time { font-variant-numeric: tabular-nums; font-weight: 800; line-height: 1.15; margin: 4px 0; white-space: nowrap; }
.oc-hms { display: block; font-size: clamp(2.4rem, 15vw, 6.5rem); letter-spacing: .02em; }
.oc-period { display: block; font-size: clamp(1.1rem, 4.5vw, 1.8rem); font-weight: 700; color: var(--oc-sub); min-height: 0; }
.oc-period:empty { display: none; }
.oc-date { font-size: clamp(1.1rem, 4.6vw, 1.7rem); font-weight: 700; margin: 6px 0 2px; overflow-wrap: anywhere; }
.oc-zone { font-size: .95rem; color: var(--oc-sub); margin: 2px 0 10px; overflow-wrap: anywhere; }
.oc-analog { margin: 6px auto; width: min(76vw, 320px); }
.oc-analog svg { display: block; width: 100%; height: auto; }
.oc-face { fill: var(--oc-bg); stroke: var(--oc-fg); stroke-width: 3; }
.oc-tick { stroke: var(--oc-sub); stroke-width: 1; }
.oc-tick-major { stroke: var(--oc-fg); stroke-width: 2.5; }
.oc-num { fill: var(--oc-fg); font-size: 14px; font-weight: 700; font-family: inherit; }
.oc-hand-h { stroke: var(--oc-fg); stroke-width: 5; stroke-linecap: round; }
.oc-hand-m { stroke: var(--oc-fg); stroke-width: 3.5; stroke-linecap: round; }
.oc-hand-s { stroke: var(--oc-accent); stroke-width: 1.8; stroke-linecap: round; }
.oc-pin { fill: var(--oc-accent); }
.oc-ctl { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 10px; }
.oc-ctl .btn { flex: 1 1 130px; min-width: 0; }
.oc-dark .oc-ctl .btn:not(.btn-primary) { background: #1e293b; border-color: #475569; color: #e6edf7; }
.oc-stage[data-face="both"] .oc-hms { font-size: clamp(2rem, 11vw, 4.5rem); }
.oc-stage:fullscreen { display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 1vh; padding: 1.5vh 2vw; width: 100vw; height: 100vh; overflow: hidden; }
.oc-stage:fullscreen > * { flex: none; max-width: 100%; margin-top: 0; margin-bottom: 0; }
.oc-stage:fullscreen .oc-hms { font-size: min(17vw, 26vh); }
.oc-stage:fullscreen .oc-period { font-size: min(5vw, 5vh); }
.oc-stage:fullscreen .oc-date { font-size: min(5vw, 5.5vh); line-height: 1.2; }
.oc-stage:fullscreen .oc-zone { font-size: min(3.2vw, 3.2vh); line-height: 1.2; }
.oc-stage:fullscreen .oc-analog { width: min(48vh, 90vw); margin: 0; }
.oc-stage:fullscreen[data-face="both"] .oc-analog { width: min(30vh, 60vw); }
.oc-stage:fullscreen[data-face="both"] .oc-hms { font-size: min(14vw, 15vh); }
.oc-stage:fullscreen .oc-ctl { max-width: 100%; margin-top: 0; gap: 1vh 1vw; }
.oc-stage:fullscreen .oc-ctl .btn { min-height: clamp(30px, 5.5vh, 44px); padding: 0 12px; font-size: clamp(12px, 2.6vh, 16px); flex: 1 1 auto; }
@media (max-width: 480px) { .oc-ctl .btn { flex: 1 1 44%; padding-left: 8px; padding-right: 8px; } }
.sources a { overflow-wrap: anywhere; }