:root{color-scheme:light;--bg: #f5f7fb;--surface: #ffffff;--surface-soft: #eef4fb;--text: #0f1f33;--muted: #66758a;--border: #dce5ef;--accent: #0876f6;--accent-strong: #065fd2;--success: #11a86d;--danger: #e14f5a;--shadow: 0 22px 60px rgba(31, 52, 74, .14);font-family:Inter,PingFang SC,Microsoft YaHei,Arial,sans-serif}*{box-sizing:border-box}body{margin:0;min-width:320px;color:var(--text);background:var(--bg)}button,input{font:inherit}button{cursor:pointer}.mini-label{margin:0 0 6px;color:var(--accent);font-size:13px;font-weight:700}.public-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 12% 12%,rgba(8,118,246,.13),transparent 32%),linear-gradient(135deg,#fff,#eef4fa)}.video-only-page{width:100vw;height:100vh;min-height:100vh;overflow:hidden;padding:0;background:#000}.player-shell{width:min(1080px,100%);min-height:min(760px,calc(100vh - 48px));display:flex;flex-direction:column;gap:18px}.player-topbar{display:flex;align-items:flex-start;justify-content:space-between;gap:18px}.player-topbar h1{margin:0;font-size:clamp(28px,6vw,58px);line-height:1.04;letter-spacing:0}.project-description{max-width:720px;margin:12px 0 0;color:var(--muted);font-size:16px;line-height:1.6}.admin-link{color:var(--text);text-decoration:none;padding:10px 14px;border:1px solid var(--border);border-radius:8px;background:#ffffffb8}.video-only-page .player-shell{width:100%;height:100vh;min-height:100vh;gap:0}.media-stage{position:relative;flex:1;min-height:420px;overflow:hidden;border-radius:8px;background:#071221;box-shadow:var(--shadow)}.video-only-page .media-stage{width:100%;height:100vh;min-height:100vh;border-radius:0;background:#000;box-shadow:none;outline:0}.details-toggle{position:absolute;right:16px;bottom:16px;width:46px;height:46px;display:grid;place-items:center;border:1px solid rgba(255,255,255,.34);border-radius:999px;color:#fff;background:#081220b8;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.media-details{position:absolute;right:16px;bottom:76px;width:min(360px,calc(100% - 32px));padding:18px;border:1px solid rgba(255,255,255,.22);border-radius:8px;color:#fff;background:#081220d1;box-shadow:0 18px 42px #00000047;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.media-details h2{margin:0 0 14px;font-size:20px}.media-details dl{display:grid;gap:12px;margin:0}.media-details dt{display:flex;align-items:center;gap:6px;color:#ffffffb3;font-size:13px;font-weight:800}.media-details dd{margin:5px 0 0;line-height:1.6}.media-view{width:100%;height:100%;min-height:420px;display:block;object-fit:contain;background:#071221}.video-only-page .media-view{width:100vw;height:100vh;min-height:100vh;max-width:100vw;max-height:100vh;object-fit:contain;object-position:center center;background:#000}.sound-toggle{position:absolute;left:50%;bottom:34px;z-index:2;width:58px;height:58px;display:grid;place-items:center;border:1px solid rgba(255,255,255,.26);border-radius:999px;color:#fff;background:#00000085;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);transform:translate(-50%)}.sound-toggle:active{transform:translate(-50%) scale(.96)}.state-panel{position:absolute;inset:0;display:grid;place-items:center;align-content:center;gap:10px;padding:26px;color:#fff;text-align:center;background:linear-gradient(135deg,#0f2948,#071221)}.state-panel span{color:#ffffffbd}.state-panel.error{background:#471b22}.video-state{padding:0;background:#000}.player-actions{display:flex;align-items:center;justify-content:center;gap:18px;flex-wrap:wrap}.primary-button,.ghost-button,.danger-button{border:0;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;font-weight:700;text-decoration:none}.primary-button{color:#fff;background:var(--accent);box-shadow:0 12px 28px #0876f63d}.primary-button:hover{background:var(--accent-strong)}.primary-button:disabled,.danger-button:disabled{opacity:.62;cursor:not-allowed}.primary-button.full{width:100%}.ghost-button{color:var(--text);background:var(--surface-soft)}.danger-button{color:var(--danger);background:#fff1f3}.media-caption{color:var(--muted);display:flex;flex-direction:column;gap:3px;min-width:0}.media-caption span{color:var(--text);font-weight:700;word-break:break-all}.admin-login-page,.admin-page{min-height:100vh}.admin-login-page{display:grid;place-items:center;padding:24px;background:linear-gradient(145deg,#edf5ff,#fff)}.login-panel{width:min(420px,100%);background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:32px;box-shadow:var(--shadow)}.login-mark{width:52px;height:52px;display:grid;place-items:center;border-radius:8px;color:var(--accent);background:#e9f2ff}.login-panel h1{margin:18px 0 8px;font-size:32px}.login-panel p,.admin-header p,.upload-panel p,.settings-panel p{margin:0;color:var(--muted);line-height:1.6}label{display:grid;gap:8px;margin:20px 0;color:var(--text);font-weight:700}input{width:100%;min-height:44px;border:1px solid var(--border);border-radius:8px;padding:0 12px;background:#fff;color:var(--text)}.form-error,.notice.error{color:var(--danger);background:#fff1f3}.form-error,.notice{margin:14px 0;padding:12px 14px;border-radius:8px;font-weight:700}.notice{color:#0c7b51;background:#e9fff5}.admin-page{display:grid;grid-template-columns:260px 1fr}.admin-sidebar{position:sticky;top:0;height:100vh;padding:28px;display:flex;flex-direction:column;justify-content:space-between;border-right:1px solid var(--border);background:var(--surface)}.admin-sidebar h1{margin:0;font-size:28px}.admin-sidebar nav{display:grid;gap:8px;margin-top:34px}.project-switcher{display:grid;gap:8px;margin-top:24px}.project-switcher span{color:var(--muted);font-size:13px;font-weight:800}.project-switcher button{display:grid;gap:3px;width:100%;padding:11px 12px;border:1px solid var(--border);border-radius:8px;color:var(--text);text-align:left;background:#fff}.project-switcher-item{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:6px;align-items:stretch}.project-switcher-item>button:first-child{min-width:0}.set-default-button{width:auto!important;padding:6px 9px!important;color:var(--accent)!important;background:#eef6ff!important;border-color:#cfe3fb!important;font-size:12px;white-space:nowrap}.project-switcher button.selected{border-color:#b8d7ff;background:#e9f2ff}.project-switcher small{color:var(--muted)}.admin-sidebar a{display:flex;align-items:center;gap:10px;padding:12px;color:var(--muted);border-radius:8px;text-decoration:none;font-weight:700}.admin-sidebar a.active,.admin-sidebar a:hover{color:var(--accent);background:#e9f2ff}.admin-content{padding:30px;display:grid;gap:18px}.admin-header{display:flex;align-items:center;justify-content:space-between;gap:18px}.admin-header h2{margin:0 0 8px;font-size:clamp(28px,4vw,42px)}.toolbar,.project-panel,.media-table-panel,.upload-panel,.settings-panel{background:var(--surface);border:1px solid var(--border);border-radius:8px;box-shadow:0 12px 36px #1f344a12}.project-panel{display:grid;gap:14px;padding:16px}.project-form{display:grid;grid-template-columns:1.1fr minmax(140px,.7fr) minmax(140px,.7fr) 1fr auto;gap:12px;align-items:end}.project-form h3{margin:0 0 6px;font-size:22px}.project-form p{margin:0;color:var(--muted);line-height:1.5}.project-actions{display:flex;gap:8px;flex-wrap:wrap}.project-url{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:10px;padding:12px;border-radius:8px;background:#f7fafd}.project-url span{color:var(--muted);font-weight:800}.project-url strong{min-width:0;word-break:break-all}.toolbar{display:flex;justify-content:space-between;gap:14px;padding:14px}.toolbar input{max-width:360px}.segmented{display:flex;gap:8px}.segmented button{min-height:40px;padding:0 14px;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--muted);display:inline-flex;align-items:center;gap:6px;font-weight:700}.segmented button.selected{color:var(--accent);border-color:#b8d7ff;background:#e9f2ff}.media-table-panel{overflow:hidden}.table-head,.table-row{display:grid;grid-template-columns:92px 1.4fr .8fr 1fr 1fr 180px;gap:12px;align-items:center;padding:12px 16px}.table-head{color:var(--muted);background:#f7fafd;font-size:13px;font-weight:800}.table-row,.table-item{border-top:1px solid var(--border)}.table-item .table-row{border-top:0}.table-row strong{min-width:0;word-break:break-all}.thumb{width:76px;height:48px;display:grid;place-items:center;overflow:hidden;border-radius:8px;color:var(--accent);background:var(--surface-soft)}.thumb img{width:100%;height:100%;object-fit:cover}.empty-row{padding:34px;text-align:center;color:var(--muted)}.row-actions,.edit-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.compact{min-height:36px;padding:0 10px}.edit-panel{display:grid;grid-template-columns:repeat(4,minmax(0,1fr)) auto;gap:12px;align-items:end;padding:16px;background:#f7fafd;border-top:1px solid var(--border)}.edit-panel label{margin:0}.upload-panel{position:relative;display:grid;justify-items:center;gap:10px;padding:34px;color:var(--muted);border-style:dashed}.upload-panel h3,.settings-panel h3{margin:0;color:var(--text);font-size:22px}.upload-meta{position:relative;z-index:1;width:min(860px,100%);display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:6px 0}.upload-panel .file-input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}.upload-panel button{position:relative;z-index:1;margin-top:8px}.settings-panel{display:grid;grid-template-columns:1fr auto auto auto;align-items:center;gap:18px;padding:18px}.settings-panel label{margin:0;min-width:160px}.radio-line{display:flex;align-items:center}.radio-line input{width:auto;min-height:auto}@media(max-width:940px){.admin-page{grid-template-columns:1fr}.admin-sidebar{position:static;height:auto;gap:20px}.admin-sidebar nav{display:flex;overflow-x:auto;margin-top:18px}.project-switcher{grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}.admin-content{padding:18px}.admin-header,.toolbar,.settings-panel{align-items:stretch;flex-direction:column;display:flex}.toolbar input{max-width:none}.table-head{display:none}.table-row{grid-template-columns:76px 1fr;gap:8px 12px}.table-row span,.table-row .row-actions{grid-column:2}.edit-panel,.upload-meta,.project-form,.project-url{grid-template-columns:1fr}}@media(max-width:640px){.public-page{padding:12px}.video-only-page{padding:0}.player-shell{min-height:calc(100vh - 24px)}.video-only-page .player-shell{min-height:100vh}.player-topbar{align-items:stretch;flex-direction:column}.admin-link{width:max-content}.media-stage,.media-view{min-height:58vh}.player-actions{justify-content:stretch}.player-actions .primary-button,.segmented{width:100%}.segmented button{flex:1}.login-panel{padding:24px}}