* { box-sizing: border-box; }
.mobile-logout { display: none; }
@media (max-width: 52rem) { .mobile-logout { display: block; } }
[hidden] { display: none !important; }
html { color-scheme: light dark; }
body { margin: 0; background: var(--page); color: var(--text); font: var(--size-body)/1.65 system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif; }
a { color: inherit; text-decoration: none; overflow-wrap: anywhere; }
button, input { font: inherit; }
button, a, input, summary { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: 0.55; }
:focus-visible { outline: 0.1875rem solid var(--focus); outline-offset: var(--space-1); }
h1,h2,p { margin: 0; }
h1 { font-size: var(--size-heading); line-height: 1.25; letter-spacing: -0.04em; font-weight: 700; overflow-wrap: anywhere; }
h2 { font-size: var(--size-subheading); line-height: 1.5; font-weight: 600; }
small,.small-text { font-size: var(--size-small); }
strong { font-weight: 600; }
.muted { color: var(--muted); }
.eyebrow { font-size: var(--size-small); font-weight: 600; color: var(--action); letter-spacing: 0.1em; display: block; margin-bottom: var(--space-3); }
.shell { display: grid; grid-template-columns: 14.5rem minmax(0,1fr); min-height: 100vh; }
.sidebar { position: sticky; top: 0; height: 100vh; border-right: 0.0625rem solid var(--line); background: var(--panel); padding: var(--space-8) var(--space-5); display: flex; flex-direction: column; gap: var(--space-12); }
.brand { display: flex; align-items: center; gap: var(--space-3); font-size: 1.375rem; font-weight: 600; }
.brand small { display: block; font-size: 0.6875rem; color: var(--muted); font-weight: 400; }
.brand-mark { display: inline-grid; place-items: center; background: var(--action); color: var(--on-action); width: 2.75rem; height: 2.75rem; border-radius: var(--size-radiusSmall); font-weight: 600; flex-shrink: 0; }
.sidebar nav,.sidebar-foot { display: grid; gap: var(--space-2); min-width: 0; }
.nav-link { padding: var(--space-3) var(--space-4); border-radius: var(--size-radiusSmall); min-height: var(--size-control); transition: background var(--motion-fast); }
.nav-link:hover,.nav-link:active { background: var(--page); }
.nav-link.selected { background: var(--selected); color: var(--action); font-weight: 600; }
.sidebar-foot { margin-top: auto; font-size: var(--size-small); }
.sidebar-foot strong { overflow-wrap: anywhere; }
.sidebar-foot form { margin-top: var(--space-3); }
.workspace { min-width: 0; display: flex; flex-direction: column; }
.topbar { display: flex; justify-content: space-between; gap: var(--space-4); align-items: center; min-height: 4.5rem; border-bottom: 0.0625rem solid var(--line); padding: var(--space-4) var(--space-10); font-size: var(--size-small); }
.content { width: 100%; max-width: 86rem; padding: var(--space-10); margin-inline: auto; flex: 1; }
.page-heading { display: flex; justify-content: space-between; align-items: center; gap: var(--space-6); margin-bottom: var(--space-8); }
.page-heading p { margin-top: var(--space-3); }
.button { min-height: var(--size-control); display: inline-flex; justify-content: center; align-items: center; text-align: center; padding: var(--space-2) var(--space-5); border-radius: var(--size-radiusSmall); border: 0.0625rem solid transparent; font-weight: 600; font-size: var(--size-body); transition: background var(--motion-fast), border-color var(--motion-fast); max-width: 100%; }
.button.primary { background: var(--action); color: var(--on-action); }
.button.primary:hover { background: var(--action-hover); }
.button.primary:active { background: var(--action-active); }
.button.secondary { background: var(--panel); border-color: var(--border); color: var(--text); }
.button.secondary:hover,.button.secondary:active { background: var(--selected); }
.button.danger-ghost { color: var(--danger); background: var(--panel); border-color: var(--danger); }
.button.danger-ghost:hover,.button.danger-ghost:active { background: var(--danger-bg); }
.button.small { min-height: 2.5rem; font-size: var(--size-small); padding: var(--space-2) var(--space-3); }
.button[aria-busy="true"] { opacity: 1; cursor: progress; }
.text-link { color: var(--action); text-decoration: underline; text-underline-offset: 0.25em; min-height: 1.5rem; }
.text-link:hover { color: var(--action-hover); }
.back-link { display: inline-block; margin-bottom: var(--space-6); }
.summary-strip { display: flex; flex-wrap: wrap; gap: var(--space-10); padding-bottom: var(--space-6); border-bottom: 0.0625rem solid var(--line); margin-bottom: var(--space-8); }
.summary-strip div { display: grid; gap: var(--space-1); }
.summary-strip strong { font-size: 1.625rem; }
.summary-strip strong small { font-weight: 400; }
.search-row { display: flex; gap: var(--space-2); max-width: 31rem; margin-bottom: var(--space-6); }
.search-row input { min-width: 0; }
.search-row .button { flex-shrink: 0; white-space: nowrap; }
input { min-width: 0; width: 100%; min-height: var(--size-control); background: var(--panel); border: 0.0625rem solid var(--border); color: var(--text); border-radius: var(--size-radiusSmall); padding: var(--space-2) var(--space-3); }
input:hover { border-color: var(--action); }
input:focus { border-color: var(--action); }
input:disabled { opacity: 0.6; }
input[aria-invalid="true"] { border-color: var(--danger); }
input::placeholder { color: var(--muted); }
input[type="file"] { min-height: auto; padding: var(--space-4); }
input[type="file"]::file-selector-button { font: inherit; margin-right: var(--space-3); padding: var(--space-2); border: 0.0625rem solid var(--border); border-radius: var(--size-radiusSmall); background: var(--page); color: var(--text); cursor: pointer; }
label { display: grid; gap: var(--space-2); font-weight: 500; }
.video-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(min(100%,20rem),1fr)); gap: var(--space-6); }
.video-card { background: var(--panel); border: 0.0625rem solid var(--line); border-radius: var(--size-radius); overflow: hidden; min-width: 0; }
.preview { display: flex; position: relative; aspect-ratio: 16/9; background: var(--selected); align-items: center; justify-content: center; }
.preview img { width: 100%; height: 100%; object-fit: cover; }
.preview-empty { color: var(--muted); }
.duration { position: absolute; right: var(--space-3); bottom: var(--space-3); background: var(--panel); padding: var(--space-1) var(--space-2); border-radius: var(--size-radiusSmall); font-size: var(--size-small); }
.video-card-body { padding: var(--space-5); }
.card-title-row { display: flex; align-items: flex-start; gap: var(--space-3); justify-content: space-between; }
.card-title-row h2 { min-width: 0; overflow-wrap: anywhere; }
.badge { display: inline-flex; white-space: nowrap; background: var(--page); color: var(--muted); padding: var(--space-1) var(--space-2); border-radius: var(--size-radiusSmall); font-size: 0.75rem; }
.badge.success { background: var(--selected); color: var(--action); }
.card-actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-4); margin-top: var(--space-5); font-size: var(--size-small); }
.empty-state { min-height: 25rem; background: var(--panel); border: 0.0625rem solid var(--line); border-radius: var(--size-radius); padding: var(--space-12); display: flex; flex-direction: column; justify-content: center; align-items: flex-start; gap: var(--space-5); }
.empty-state h2 { font-size: 1.625rem; }
.panel { padding: var(--space-6); background: var(--panel); border: 0.0625rem solid var(--line); border-radius: var(--size-radius); margin-bottom: var(--space-6); min-width: 0; }
.panel h2 { margin-bottom: var(--space-4); }
.panel.compact { padding: var(--space-5); }
.job-row { display: flex; flex-wrap: wrap; gap: var(--space-4); padding-block: var(--space-2); align-items: center; }
.job-row a { color: var(--action); font-weight: 600; }
.notice { padding: var(--space-4); background: var(--selected); color: var(--text); border: 0.0625rem solid var(--border); border-radius: var(--size-radiusSmall); margin-bottom: var(--space-5); overflow-wrap: anywhere; }
.notice.error { background: var(--danger-bg); color: var(--danger); border-color: var(--danger); }
.error-text,.errorlist { color: var(--danger); }
.errorlist { margin: 0; padding-left: var(--space-5); }
.detail-grid { display: grid; grid-template-columns: minmax(0,1fr) 21rem; gap: var(--space-6); }
.detail-grid > *, .detail-aside { min-width: 0; }
.player-panel { padding: 0; overflow: hidden; }
video { width: 100%; display: block; max-height: 70vh; background: var(--text); }
.player-placeholder { min-height: 18rem; display: grid; place-items: center; color: var(--muted); }
.player-caption { display: flex; gap: var(--space-4); flex-wrap: wrap; padding: var(--space-4); font-size: var(--size-small); align-items: center; }
.qr-panel { text-align: center; }
.qr-image { display: block; width: min(100%,15rem); height: auto; margin: var(--space-4) auto; }
.qr-panel .stack { margin-top: var(--space-5); }
.link-label { margin-top: var(--space-5); text-align: left; font-size: var(--size-small); }
.link-label input { font-size: var(--size-small); }
.version-row { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); padding-block: var(--space-5); border-top: 0.0625rem solid var(--line); }
.version-row > div { min-width: 0; }
.version-row strong { overflow-wrap: anywhere; }
.version-actions { display: flex; flex-direction: column; align-items: flex-end; gap: var(--space-2); flex-shrink: 0; }
.stack { display: grid; gap: var(--space-4); }
.account-panel { max-width: 39rem; }
hr { border: 0; border-top: 0.0625rem solid var(--line); margin-block: var(--space-6); }
.footer { padding: var(--space-6) var(--space-10); color: var(--muted); font-size: var(--size-small); border-top: 0.0625rem solid var(--line); }
.pagination { display: flex; align-items: center; gap: var(--space-5); justify-content: center; margin-top: var(--space-8); }
dialog { border: 0.0625rem solid var(--line); border-radius: var(--size-radius); padding: var(--space-8); width: min(34rem,calc(100% - 2rem)); max-height: calc(100vh - 2rem); color: var(--text); background: var(--panel); }
dialog::backdrop { background: var(--text); opacity: 0.45; }
.dialog-heading { display: flex; justify-content: space-between; align-items: center; gap: var(--space-4); margin-bottom: var(--space-6); }
progress { display: block; width: 100%; height: var(--space-3); accent-color: var(--action); margin-block: var(--space-3); }
.login-layout { min-height: 100vh; display: grid; grid-template-columns: 1fr 1fr; }
.login-intro { padding: var(--space-16); background: var(--selected); display: flex; flex-direction: column; justify-content: center; align-items: flex-start; gap: var(--space-8); position: relative; }
.login-intro h1 { font-size: clamp(2.625rem,4vw,4.5rem); line-height: 1.3; }
.login-intro p { color: var(--muted); }
.intro-foot { margin-top: var(--space-12); font-size: var(--size-small); color: var(--muted); }
.login-panel { display: grid; place-items: center; padding: var(--space-10); }
.login-card { width: min(100%,23rem); }
.login-card h2 { margin-top: var(--space-8); font-size: 1.75rem; }
.login-card > p { margin-top: var(--space-2); margin-bottom: var(--space-8); }
.login-card .notice { margin-top: var(--space-5); }
.login-card .stack + p { margin-top: var(--space-6); }
.watch-layout { max-width: 62rem; margin-inline: auto; padding: var(--space-6); }
.watch-heading { margin-bottom: var(--space-4); text-align: center; }
.watch-heading h1 { font-size: clamp(1.375rem,3vw,2rem); line-height: 1.45; white-space: pre-line; letter-spacing: 0; text-wrap: balance; }
.watch-player { overflow: hidden; border: 0.0625rem solid var(--line); border-radius: var(--size-radius); background: var(--media-surface); }
.watch-player video { display: block; width: 100%; height: auto; max-height: 72vh; max-height: 72svh; object-fit: contain; }
.watch-player .notice { margin: var(--space-4); }
.watch-info { padding-block: var(--space-4); }
.watch-actions { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: var(--space-3); }
.watch-buttons { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.watch-buttons .button { flex-shrink: 0; }
.unavailable { min-height: 100vh; max-width: 42rem; padding: var(--space-10); margin-inline: auto; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; gap: var(--space-6); }
.sr-only { position: absolute; width: 0.0625rem; height: 0.0625rem; padding: 0; margin: -0.0625rem; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: var(--space-4); top: -10rem; z-index: 10; padding: var(--space-3); background: var(--panel); color: var(--action); }
.skip-link:focus { top: var(--space-4); }
@media (max-width: 72rem) { .detail-grid { grid-template-columns: minmax(0,1fr); } .detail-aside { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: var(--space-6); } }
@media (max-width: 52rem) { .shell { grid-template-columns: minmax(0,1fr); } .sidebar { position: static; height: auto; padding: var(--space-4); border-right: 0; border-bottom: 0.0625rem solid var(--line); flex-direction: row; flex-wrap: wrap; align-items: center; gap: var(--space-4); } .sidebar nav { display: flex; margin-left: auto; gap: var(--space-2); } .sidebar-foot { display: none; } .brand small { display: none; } .nav-link { padding-inline: var(--space-3); } .topbar { padding-inline: var(--space-5); min-height: 3.5rem; } .content { padding: var(--space-6) var(--space-5); } .page-heading { align-items: flex-start; flex-direction: column; gap: var(--space-5); } h1 { font-size: 2.25rem; } .footer { padding-inline: var(--space-5); } .login-layout { grid-template-columns: minmax(0,1fr); } .login-intro { display: none; } .login-panel { padding: var(--space-6); min-height: 100vh; } .watch-layout { padding: var(--space-4); } }
@media (max-width: 35rem) { .detail-aside { display: block; } .summary-strip { gap: var(--space-6); } .summary-strip strong { font-size: 1.375rem; } .version-row { flex-direction: column; align-items: flex-start; } .version-actions { align-items: flex-start; flex-direction: row; flex-wrap: wrap; } .empty-state { padding: var(--space-6); min-height: 24rem; } .topbar .muted { display: none; } .panel { padding: var(--space-5); } .brand { font-size: 1.125rem; } .sidebar nav { width: 100%; margin: 0; } .nav-link { flex: 1; text-align: center; } .sidebar { gap: var(--space-3); } dialog { padding: var(--space-5); } }
@media (prefers-reduced-motion: reduce) { *,*::before,*::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; } }