:root {
    --admin-font-sans: "PingFang SC", "Hiragino Sans GB", "Heiti SC",
        "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    --admin-font-serif: "Songti SC", "STSong", "Noto Serif CJK SC",
        "Source Han Serif SC", "SimSun", serif;
}

body {
    font-family: var(--admin-font-sans);
    font-kerning: normal;
}

body .font-other {
    font-family: var(--admin-font-sans);
}

body .font-tree-hole {
    font-family: var(--admin-font-serif);
    font-weight: 600;
}

button,
input,
select,
textarea {
    font-family: var(--admin-font-sans);
}

.admin-header {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    background: var(--color-glass);
    backdrop-filter: blur(30px) saturate(1.4);
    -webkit-backdrop-filter: blur(30px) saturate(1.4);
    border-bottom: 1px solid var(--color-glass-border);
    box-shadow: 0 2px 20px rgba(168, 138, 131, 0.04);
}

.admin-header h1 {
    margin: 0;
    color: var(--color-champagne);
    font-size: 1.6rem;
    line-height: 1.2;
    letter-spacing: 0.03em;
}

.admin-header p {
    margin: 0.2rem 0 0;
    color: var(--color-text-secondary);
    font-size: 0.85rem;
}

.admin-back,
.icon-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border: 0;
    border-radius: 999px;
    color: var(--color-mocha-dark);
    background: var(--color-glass-strong);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--color-glass-border);
    cursor: pointer;
    transition: all 0.4s var(--ease-smooth);
}

.admin-back:hover,
.icon-button:hover {
    background: var(--color-cream);
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
}

.admin-shell {
    width: min(1080px, calc(100% - 2rem));
    margin: 1.5rem auto 4rem;
}

.admin-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.admin-tab,
.admin-primary,
.admin-secondary,
.admin-danger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    min-height: 2.6rem;
    padding: 0.65rem 1rem;
    border: 0;
    border-radius: var(--radius-sm);
    font-family: var(--admin-font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    line-height: 1.4;
    cursor: pointer;
    transition: all 0.4s var(--ease-smooth);
}

.admin-tab {
    color: var(--color-text-secondary);
    background: var(--color-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid transparent;
}

.admin-tab:hover {
    border-color: var(--color-glass-border);
    box-shadow: var(--shadow-soft);
}

.admin-tab.active,
.admin-primary {
    color: #fff;
    background: linear-gradient(135deg, var(--color-mocha) 0%, var(--color-champagne) 100%);
    box-shadow: 0 6px 20px rgba(212, 175, 118, 0.25);
    border: none;
}

.admin-secondary {
    color: var(--color-text-secondary);
    background: var(--color-cream);
    border: 1px solid var(--color-glass-border);
}

.admin-danger {
    color: #be3c3c;
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.12);
}

.admin-tab:hover,
.admin-primary:hover,
.admin-secondary:hover,
.admin-danger:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-elevated);
}

.admin-primary:disabled {
    opacity: 0.46;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.admin-panel {
    display: none;
    padding: 1.5rem;
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-lg);
    background: var(--color-glass-strong);
    backdrop-filter: blur(24px) saturate(1.3);
    -webkit-backdrop-filter: blur(24px) saturate(1.3);
    box-shadow: var(--shadow-elevated), var(--shadow-inner);
}

.admin-panel.active {
    display: block;
}

.panel-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.panel-head h2 {
    margin: 0;
    color: var(--color-champagne);
    font-size: 1.4rem;
    letter-spacing: 0.03em;
}

.panel-head p {
    margin: 0.25rem 0 0;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.admin-list,
.photo-groups-list {
    display: grid;
    gap: 1rem;
}

.photo-groups-list {
    margin-top: 1.25rem;
}

.article-editor,
.photo-group-card,
.photo-form {
    min-width: 0;
    padding: 1.25rem;
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-md);
    background: var(--color-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: all 0.4s var(--ease-smooth);
}

.article-editor:hover,
.photo-group-card:hover,
.photo-form:hover {
    box-shadow: var(--shadow-soft);
    border-color: rgba(212, 175, 118, 0.2);
}

.article-editor-head,
.photo-group-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.article-editor-title {
    flex: 1;
    min-width: 0;
    font-family: var(--admin-font-sans);
    color: var(--color-text-secondary);
}

.field {
    display: grid;
    gap: 0.35rem;
    font-family: var(--admin-font-sans);
    color: var(--color-text-secondary);
}

.field input,
.field select,
.field textarea {
    width: 100%;
    border: 1px solid rgba(232, 197, 140, 0.22);
    border-radius: var(--radius-sm);
    background: rgba(10, 7, 13, 0.55);
    color: var(--text);
    padding: 0.7rem 0.8rem;
    outline: none;
    font-family: var(--admin-font-sans);
    font-size: 0.95rem;
    line-height: 1.5;
    transition: all 0.4s var(--ease-smooth);
}

.field input::placeholder,
.field textarea::placeholder {
    color: var(--text-faint);
}

.field select option {
    background: #17101c;
    color: var(--text);
}

.field textarea {
    min-height: 13rem;
    resize: vertical;
    font-family: var(--admin-font-serif);
    font-size: 1rem;
    line-height: 1.8;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
    border-color: var(--gold);
    color: #fff;
    box-shadow: 0 0 0 3px rgba(232, 197, 140, 0.16), 0 0 22px rgba(232, 197, 140, 0.1);
    background: rgba(12, 9, 16, 0.78);
}

.form-grid {
    display: grid;
    gap: 0.75rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-bottom: 0.9rem;
}

.upload-box {
    display: grid;
    place-items: center;
    gap: 0.35rem;
    min-height: 9rem;
    margin-bottom: 0.9rem;
    border: 1.5px dashed var(--color-mocha);
    border-radius: var(--radius-md);
    color: var(--color-mocha-dark);
    background: var(--color-glass);
    cursor: pointer;
    transition: all 0.4s var(--ease-smooth);
}

.upload-box:hover {
    background: var(--color-cream);
    border-color: var(--color-champagne);
    box-shadow: var(--shadow-soft);
}

.photo-form[aria-busy="true"] .upload-box {
    opacity: 0.58;
    pointer-events: none;
}

.upload-box small {
    color: var(--color-text-muted);
}

.photo-preview,
.photo-thumbs {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(72px, 1fr));
    gap: 0.5rem;
    margin-bottom: 0.9rem;
}

.photo-preview img,
.photo-thumbs img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-soft);
}

.photo-preview-placeholder {
    display: grid;
    place-items: center;
    align-content: center;
    min-width: 0;
    aspect-ratio: 1;
    padding: 0.45rem;
    border: 1px solid rgba(147, 111, 91, 0.3);
    border-radius: var(--radius-sm);
    background: var(--color-glass);
    color: var(--color-mocha-dark);
    text-align: center;
    box-shadow: var(--shadow-soft);
}

.photo-preview-placeholder strong {
    font-size: 0.78rem;
    letter-spacing: 0.12em;
}

.photo-preview-placeholder span {
    width: 100%;
    overflow: hidden;
    color: var(--color-text-muted);
    font-size: 0.68rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.photo-group-meta {
    flex: 1 1 auto;
    min-width: 0;
    padding-top: 0.65rem;
    color: var(--color-text-secondary);
    font-family: var(--admin-font-sans);
    font-size: 0.9rem;
    line-height: 1.45;
    overflow-wrap: anywhere;
}

.photo-group-actions {
    display: flex;
    flex: 0 0 auto;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 0.5rem;
}

.admin-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 1rem;
}

.toast-container {
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    z-index: 50;
    display: grid;
    gap: 0.5rem;
}

.toast {
    max-width: min(22rem, calc(100vw - 2rem));
    padding: 0.85rem 1.1rem;
    border-radius: var(--radius-md);
    background: var(--color-glass-strong);
    backdrop-filter: blur(20px) saturate(1.3);
    -webkit-backdrop-filter: blur(20px) saturate(1.3);
    color: var(--color-text);
    box-shadow: var(--shadow-elevated);
    border: 1px solid var(--color-glass-border);
    font-family: var(--admin-font-sans);
}

.toast-success { border-left: 3px solid #22c55e; }
.toast-error   { border-left: 3px solid #ef4444; }
.toast-info    { border-left: 3px solid var(--color-champagne); }

.loading-overlay {
    position: fixed;
    inset: 0;
    z-index: 40;
    display: none;
    place-items: center;
    background: rgba(251, 248, 244, 0.5);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.loading-overlay.active {
    display: grid;
}

.loading-card {
    padding: 1.2rem 1.8rem;
    border-radius: var(--radius-lg);
    background: var(--color-glass-strong);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--color-glass-border);
    color: var(--color-champagne);
    box-shadow: var(--shadow-elevated), var(--shadow-glow);
    letter-spacing: 0.04em;
}

/* ---- password lock overlay ---- */
.admin-lock {
    position: fixed; inset: 0; z-index: 100;
    display: grid; place-items: center; padding: 1.5rem;
    background: radial-gradient(120% 100% at 50% 30%, rgba(22,15,27,0.9) 0%, rgba(10,7,13,0.96) 70%);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
}
.admin-lock[hidden] { display: none; }
.admin-lock-card {
    display: flex; flex-direction: column; align-items: center; gap: 0.7rem;
    width: min(22rem, 100%); padding: 2.4rem 2rem;
    border: 1px solid var(--glass-border-bright); border-radius: var(--radius-lg);
    background: var(--glass-2); box-shadow: var(--shadow-elevated), var(--glow-gold);
    text-align: center;
}
.admin-lock-icon { width: 2.2rem; height: 2.2rem; color: var(--gold); }
.admin-lock-card h2 { margin: 0; color: var(--champagne); font-size: 1.5rem; letter-spacing: 0.04em; }
.admin-lock-card p { margin: 0; color: var(--text-2); font-size: 0.86rem; }
.admin-lock-input {
    width: 100%; margin-top: 0.4rem; padding: 0.75rem 0.9rem;
    border: 1px solid rgba(232,197,140,0.22); border-radius: var(--radius-sm);
    background: rgba(10,7,13,0.6); color: #fff; outline: none;
    font-family: var(--admin-font-sans); font-size: .95rem; line-height: 1.5;
    letter-spacing: 0.1em; text-align: center;
    transition: all 0.3s var(--ease-smooth);
}
.admin-lock-input:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(232,197,140,0.16); }
.admin-lock-error { min-height: 1.1rem; color: #f0a3ad; font-size: 0.78rem; }
.admin-lock-card .admin-primary { width: 100%; }

/* ---- tree-hole message editor ---- */
.admin-empty { color: var(--text-3); text-align: center; padding: 1.5rem 0; }
.message-editor .article-editor-head { align-items: center; }
.sender-picker { display: inline-flex; gap: 0.35rem; flex-wrap: wrap; }
.sender-chip {
    padding: 0.35rem 0.7rem; border-radius: 999px; cursor: pointer;
    border: 1px solid var(--glass-border); background: var(--glass);
    color: var(--text-2); font-family: var(--admin-font-sans); font-size: 0.74rem;
    transition: all 0.3s var(--ease-smooth);
}
.sender-chip:hover { border-color: var(--glass-border-bright); color: var(--text); }
.sender-chip.active { color: #1c1410; font-weight: 600; }
.sender-chip:not(.chip-baby):not(.chip-cooker).active { background: var(--text-2); color: #1c1410; }
.sender-chip.chip-baby.active { background: #E7A9B2; border-color: #E7A9B2; }
.sender-chip.chip-cooker.active { background: #E8C58C; border-color: #E8C58C; }
.message-file-preview { margin-top: 0.5rem; }
.message-file-preview img,
.message-file-preview video { max-height: 8rem; border-radius: var(--radius-sm); box-shadow: var(--shadow-soft); border: 1px solid var(--glass-border); }
.message-file-preview audio { width: 100%; }

/* ---- love museum editor ---- */
.museum-admin-page {
    --admin-spring: cubic-bezier(.16, 1, .3, 1);
    scroll-behavior: smooth;
}
.museum-admin-page .admin-header {
    transition: padding .45s var(--admin-spring), background-color .35s ease, box-shadow .35s ease;
}
.museum-admin-page .admin-header.is-compact {
    padding-block: .7rem;
    background: rgba(15,10,18,.88);
    box-shadow: 0 12px 36px rgba(0,0,0,.22);
}
.museum-save-state {
    display: inline-flex; align-items: center; gap: .42rem; margin-left: auto;
    color: var(--text-3); font-size: .72rem; white-space: nowrap;
    transition: color .3s ease, transform .4s var(--admin-spring), opacity .3s ease;
}
.museum-save-state span {
    width: .45rem; height: .45rem; border-radius: 50%;
    background: #75b887; box-shadow: 0 0 10px rgba(117,184,135,.46);
    transition: background .3s ease, box-shadow .3s ease, transform .4s var(--admin-spring);
}
.museum-save-state.is-dirty { color: var(--gold); transform: translateY(-1px); }
.museum-save-state.is-dirty span { background: var(--gold); box-shadow: 0 0 12px rgba(232,197,140,.55); transform: scale(1.12); }
.museum-save-state.is-saving span { animation: museum-admin-saving 1s ease-in-out infinite; }
@keyframes museum-admin-saving { 50% { opacity: .35; transform: scale(.7); } }

.museum-admin-shell { width: min(1180px, calc(100% - 2rem)); }
.museum-admin-shell .admin-tabs {
    position: sticky; top: 5rem; z-index: 12;
    width: fit-content; padding: .3rem;
    border: 1px solid var(--glass-border); border-radius: var(--radius-md);
    background: rgba(14,9,17,.68); backdrop-filter: blur(18px);
    box-shadow: 0 10px 30px rgba(0,0,0,.14);
    transition: top .4s var(--admin-spring), box-shadow .35s ease;
}
.museum-admin-page .admin-header.is-compact + .museum-admin-shell .admin-tabs { top: 4.35rem; }
.museum-admin-shell .admin-tab {
    position: relative; overflow: hidden;
    transition: color .3s ease, background-color .35s ease, transform .4s var(--admin-spring), box-shadow .35s ease;
}
.museum-admin-shell .admin-tab:active,
.museum-admin-shell .admin-primary:active,
.museum-admin-shell .admin-secondary:active,
.museum-admin-shell .admin-danger:active {
    transform: scale(.95);
    transition-duration: .1s;
}
.museum-admin-shell .admin-panel {
    transform-origin: 50% 0;
    will-change: transform, opacity;
}
.museum-admin-shell .admin-tab svg,
.museum-admin-shell button svg,
.museum-admin-shell label svg { width: 1rem; height: 1rem; flex: 0 0 auto; }
.museum-short-textarea { min-height: 6.5rem !important; }
.museum-exhibit-toolbar {
    display: grid; grid-template-columns: auto minmax(12rem, 20rem) 1fr; align-items: end; gap: .75rem;
    margin: .25rem 0 2rem; padding-bottom: 1.25rem; border-bottom: 1px solid var(--glass-border);
}
.museum-exhibit-toolbar .field { margin: 0; }
.museum-exhibit-toolbar select {
    min-height: 2.7rem; padding: .6rem .8rem; border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm); color: var(--text); background: rgba(10,7,13,.55); outline: 0;
}
.museum-exhibit-toolbar > span { justify-self: end; align-self: center; color: var(--text-3); font-size: .75rem; }
.museum-exhibit-groups { display: grid; gap: 3.5rem; }
.museum-exhibit-group { min-width: 0; }
.museum-exhibit-group-head {
    display: grid; grid-template-columns: 3.25rem minmax(0,1fr) auto auto; align-items: center; gap: 1rem;
    margin-bottom: .9rem; padding-bottom: .85rem; border-bottom: 1px solid var(--glass-border);
}
.museum-exhibit-group-index, .museum-exhibit-group-count { color: var(--gold); font-size: .7rem; letter-spacing: .08em; }
.museum-exhibit-group-head h3 { margin: 0; color: var(--gold-bright); font: 600 1.35rem/1.25 var(--admin-font-serif); }
.museum-exhibit-group-head p { margin: .2rem 0 0; color: var(--text-3); font-size: .72rem; }
.museum-exhibit-group-count { color: var(--text-3); white-space: nowrap; }
.museum-add-to-hall { min-height: 2.35rem; padding: .45rem .75rem; font-size: .78rem; }
.museum-exhibit-group-list { display: grid; gap: .7rem; }
.museum-exhibit-item {
    min-width: 0; overflow: hidden; border: 1px solid var(--glass-border); border-radius: var(--radius-sm);
    background: rgba(255,255,255,.018);
    transition: border-color .3s ease, background .3s ease, box-shadow .35s ease, transform .4s var(--admin-spring);
}
.museum-exhibit-item:hover { border-color: var(--glass-border-bright); background: rgba(255,255,255,.028); }
.museum-exhibit-item.is-expanded { border-color: rgba(232,197,140,.34); box-shadow: 0 16px 48px rgba(0,0,0,.16); }
.museum-exhibit-summary-row {
    display: grid; grid-template-columns: 4.75rem minmax(0,1fr) auto; align-items: center; gap: .85rem;
    min-height: 6.25rem; padding: .7rem;
}
.museum-exhibit-cover {
    display: grid; place-items: center; width: 4.75rem; height: 4.75rem; overflow: hidden;
    border: 1px solid var(--glass-border); border-radius: 6px; color: var(--text-3); background: rgba(0,0,0,.16);
}
.museum-exhibit-cover img { width: 100%; height: 100%; object-fit: cover; }
.museum-exhibit-cover svg { width: 1.2rem; height: 1.2rem; }
.museum-exhibit-summary-copy { display: grid; min-width: 0; gap: .18rem; }
.museum-exhibit-position { color: var(--gold); font-size: .68rem; letter-spacing: .08em; }
.museum-exhibit-summary-copy h4 { margin: 0; overflow-wrap: anywhere; color: var(--text); font: 600 1.08rem/1.3 var(--admin-font-serif); }
.museum-exhibit-summary-copy p { margin: 0; overflow: hidden; color: var(--text-3); font-size: .7rem; text-overflow: ellipsis; white-space: nowrap; }
.museum-exhibit-badges { display: flex; flex-wrap: wrap; gap: .35rem; margin-top: .15rem; }
.museum-exhibit-badges span { padding: .14rem .42rem; border: 1px solid rgba(232,197,140,.2); border-radius: 999px; color: var(--gold); font-size: .62rem; }
.museum-exhibit-order-actions { display: flex; align-items: center; gap: .35rem; }
.museum-exhibit-order-actions button { width: 2.35rem; min-height: 2.35rem; padding: 0; }
.museum-exhibit-order-actions .museum-edit-exhibit { width: auto; padding-inline: .7rem; }
.museum-exhibit-order-actions button:disabled,
.museum-admin-shell .admin-secondary:disabled { opacity: .32; cursor: not-allowed; transform: none; box-shadow: none; }
.museum-exhibit-editor-body { padding: 1.25rem; border-top: 1px solid var(--glass-border); background: rgba(0,0,0,.08); }
.museum-admin-media-row {
    display: flex; align-items: center; gap: 1rem; margin-top: 1rem;
    padding-top: 1rem; border-top: 1px solid var(--glass-border);
}
.museum-admin-media-row img {
    width: 8rem; aspect-ratio: 4 / 3; object-fit: cover;
    border-radius: var(--radius-sm); border: 1px solid var(--glass-border);
    transition: transform .55s var(--admin-spring), filter .35s ease, box-shadow .35s ease;
}
.museum-admin-media-row img:hover { transform: scale(1.025); filter: brightness(1.06); box-shadow: var(--shadow-elevated); }
.museum-back-cover-editor { margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--glass-border); }
.museum-back-cover-editor-head { margin-bottom: 1rem; }
.museum-back-cover-editor-head h3 { margin: 0; color: var(--gold-bright); font: 600 1.35rem/1.3 var(--admin-font-serif); }
.museum-back-cover-editor-head p { margin: .25rem 0 0; color: var(--text-3); font-size: .75rem; }
#museum-back-cover-preview { width: 12rem; aspect-ratio: 16 / 9; }
.museum-upload-button { position: relative; cursor: pointer; }
.museum-option-row {
    display: flex; gap: 1.25rem; margin-top: 1rem; padding: .8rem 0;
    color: var(--text-2); font-family: var(--admin-font-sans);
}
.museum-option-row label { display: inline-flex; align-items: center; gap: .45rem; cursor: pointer; }
.museum-option-row input { accent-color: var(--gold-deep); width: 1rem; height: 1rem; }
.museum-media-manager {
    margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--glass-border);
}
.museum-media-heading { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: .8rem; color: var(--text-2); }
.museum-media-heading > div { display: grid; gap: .22rem; }
.museum-media-heading small { color: var(--text-3); font-size: .72rem; }
.museum-image-list { display: grid; gap: .55rem; }
.museum-image-item {
    display: grid; grid-template-columns: 4rem minmax(0,1fr) auto; align-items: center; gap: .7rem;
    padding: .45rem; border: 1px solid var(--glass-border); border-radius: var(--radius-sm);
    cursor: grab;
    transition: transform .45s var(--admin-spring), border-color .3s ease, background .3s ease, opacity .2s ease;
}
.museum-image-item:hover { transform: translateX(4px); border-color: var(--glass-border-bright); background: rgba(255,255,255,.025); }
.museum-image-item.is-cover { border-color: rgba(232,197,140,.42); background: rgba(232,197,140,.045); }
.museum-image-item.is-dragging { opacity: .38; cursor: grabbing; }
.museum-image-item.is-drop-target { border-color: var(--gold); box-shadow: inset 0 0 0 1px var(--gold); }
.museum-image-item img { width: 4rem; height: 3rem; object-fit: cover; border-radius: 6px; }
.museum-image-copy { display: grid; min-width: 0; gap: .15rem; }
.museum-image-copy span { color: var(--gold); font-size: .72rem; }
.museum-image-item code { min-width: 0; overflow: hidden; color: var(--text-3); font-size: .68rem; text-overflow: ellipsis; white-space: nowrap; }
.museum-image-actions { display: flex; gap: .35rem; }
.museum-image-item button { width: 2.3rem; min-height: 2.3rem; padding: 0; }
.museum-image-item button:disabled { opacity: .3; cursor: not-allowed; transform: none; }
.museum-path-row { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: .6rem; margin-top: .8rem; }
.museum-path-row input {
    min-width: 0; padding: .65rem .75rem; border: 1px solid rgba(232,197,140,.22);
    border-radius: var(--radius-sm); color: var(--text); background: rgba(10,7,13,.55); outline: 0;
}
.museum-audio-row { display: grid; grid-template-columns: minmax(0,1fr) auto; align-items: end; gap: .75rem; margin-top: 1rem; }
.museum-audio-row audio { grid-column: 1 / -1; width: 100%; }
.museum-admin-page .museum-hall-editor,
.museum-admin-page .museum-exhibit-item {
    transform-origin: 50% 0;
    transition: transform .5s var(--admin-spring), border-color .35s ease, box-shadow .35s ease, background .35s ease;
}
.museum-admin-page .museum-hall-editor:hover {
    transform: translateY(-3px);
    border-color: rgba(232,197,140,.28);
    box-shadow: 0 18px 55px rgba(0,0,0,.22);
}
.museum-admin-page .field > span { transition: color .3s ease, transform .35s var(--admin-spring); }
.museum-admin-page .field:focus-within > span { color: var(--gold-bright); transform: translateX(2px); }
.museum-admin-page .field input,
.museum-admin-page .field select,
.museum-admin-page .field textarea {
    transition: border-color .3s ease, box-shadow .35s ease, background-color .3s ease, transform .35s var(--admin-spring);
}
.museum-admin-page .field input:focus,
.museum-admin-page .field select:focus,
.museum-admin-page .field textarea:focus { transform: translateY(-1px); }

.museum-admin-page .loading-overlay {
    display: grid; visibility: hidden; opacity: 0; pointer-events: none;
    transition: opacity .25s ease, visibility .25s ease;
}
.museum-admin-page .loading-overlay.active { visibility: visible; opacity: 1; pointer-events: auto; }
.museum-admin-page .loading-card { transform: translateY(10px) scale(.97); transition: transform .4s var(--admin-spring); }
.museum-admin-page .loading-overlay.active .loading-card { transform: translateY(0) scale(1); }
.museum-admin-page .toast { animation: museum-toast-in .5s var(--admin-spring) both; }
@keyframes museum-toast-in {
    from { opacity: 0; transform: translate3d(18px,10px,0) scale(.96); }
}
.museum-new-item { animation: museum-new-item .8s var(--admin-spring) both; }
@keyframes museum-new-item {
    from { opacity: 0; transform: translateY(24px) scale(.985); box-shadow: 0 0 0 rgba(232,197,140,0); }
    55% { box-shadow: 0 0 0 3px rgba(232,197,140,.16); }
}

@media (max-width: 640px) {
    .museum-save-state { display: none; }
    .museum-admin-shell .admin-tabs { top: 4.9rem; width: 100%; overflow-x: auto; }
    .museum-admin-media-row { align-items: flex-start; flex-direction: column; }
    .museum-admin-media-row img { width: 100%; }
    #museum-back-cover-preview { width: 100%; }
    .museum-audio-row, .museum-path-row { grid-template-columns: 1fr; }
    .museum-media-heading { align-items: stretch; flex-direction: column; }
    .museum-upload-button { width: 100%; }
    .museum-image-item { grid-template-columns: 3.5rem minmax(0,1fr); }
    .museum-image-item img { width: 3.5rem; height: 3.5rem; }
    .museum-image-actions { grid-column: 1 / -1; }
    .museum-image-actions button { flex: 1; width: auto; }
    .museum-exhibit-toolbar { grid-template-columns: 1fr; align-items: stretch; }
    .museum-exhibit-toolbar > span { justify-self: start; }
    .museum-exhibit-group-head { grid-template-columns: auto minmax(0,1fr) auto; align-items: start; }
    .museum-exhibit-group-count { align-self: center; }
    .museum-add-to-hall { grid-column: 1 / -1; width: 100%; }
    .museum-exhibit-summary-row { grid-template-columns: 4rem minmax(0,1fr); align-items: start; }
    .museum-exhibit-cover { width: 4rem; height: 4rem; }
    .museum-exhibit-order-actions { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(6, minmax(0,1fr)); }
    .museum-exhibit-order-actions button,
    .museum-exhibit-order-actions .museum-edit-exhibit { width: 100%; padding-inline: 0; }
    .museum-edit-exhibit span { display: none; }
    .museum-exhibit-editor-body { padding: 1rem .8rem; }
}

@media (max-width: 900px) and (min-width: 641px) {
    .museum-exhibit-summary-row { grid-template-columns: 4.5rem minmax(0,1fr); }
    .museum-exhibit-cover { width: 4.5rem; height: 4.5rem; }
    .museum-exhibit-order-actions { grid-column: 1 / -1; justify-content: flex-end; }
}

@media (prefers-reduced-motion: reduce) {
    .museum-admin-page { scroll-behavior: auto; }
    .museum-admin-page *, .museum-admin-page *::before, .museum-admin-page *::after {
        animation-duration: .001ms !important;
        transition-duration: .001ms !important;
    }
}

/* ---- undo button ---- */
.admin-undo { margin-left: auto; }
.admin-undo:disabled { opacity: 0.45; cursor: not-allowed; transform: none; box-shadow: none; }

/* ---- draggable / deletable photo thumbnails ---- */
.photo-hint { display: flex; align-items: center; gap: 0.4rem; margin: 0.1rem 0 0.7rem; font-size: 0.78rem; color: var(--text-3); }
.photo-thumb {
    position: relative; cursor: grab; border-radius: var(--radius-sm); overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition: transform 0.25s var(--ease-smooth), box-shadow 0.25s ease, opacity 0.2s ease;
}
.photo-thumb.is-featured { outline: 2px solid var(--gold); outline-offset: 2px; }
.photo-thumb img { display: block; width: 100%; aspect-ratio: 1; object-fit: cover; pointer-events: none; }
.photo-thumb:hover { transform: translateY(-2px); box-shadow: var(--shadow-elevated); }
.photo-thumb.dragging { opacity: 0.4; cursor: grabbing; }
.photo-thumb.drop-target { outline: 2px dashed var(--gold); outline-offset: -2px; }
.photo-thumb-del {
    position: absolute; top: 4px; right: 4px; width: 22px; height: 22px;
    display: grid; place-items: center; border: 0; border-radius: 50%; cursor: pointer;
    font-size: 16px; line-height: 1; background: rgba(10, 7, 13, 0.66); color: #fff;
    opacity: 0; transform: scale(0.8); transition: all 0.2s var(--ease-smooth);
}
.photo-thumb-feature {
    position: absolute; left: 4px; bottom: 4px; width: 26px; height: 26px;
    display: grid; place-items: center; padding: 0; border: 1px solid rgba(255,255,255,.18); border-radius: 50%;
    color: #fff; background: rgba(10,7,13,.72); cursor: pointer;
    opacity: 0; transform: scale(.84); transition: opacity .25s ease, transform .3s var(--ease-spring), background .25s ease;
}
.photo-thumb:hover .photo-thumb-del,
.photo-thumb:focus-within .photo-thumb-del { opacity: 1; transform: scale(1); }
.photo-thumb:hover .photo-thumb-feature,
.photo-thumb:focus-within .photo-thumb-feature,
.photo-thumb.is-featured .photo-thumb-feature { opacity: 1; transform: scale(1); }
.photo-thumb-feature:hover,
.photo-thumb.is-featured .photo-thumb-feature { color: #20160f; background: var(--gold-bright); }
.photo-thumb.is-featured .photo-thumb-feature svg { fill: currentColor; }
.photo-thumb-del:hover { background: #be3c3c; }
.photo-meta-editor {
    margin-top: .9rem; padding: 1rem;
    border: 1px solid rgba(232,197,140,.25); border-radius: var(--radius-md);
    background: linear-gradient(145deg, rgba(232,197,140,.07), rgba(10,7,13,.34));
    animation: photo-meta-in .45s var(--ease-smooth) both;
}
@keyframes photo-meta-in { from { opacity: 0; transform: translateY(10px); } }
.photo-meta-editor-head {
    display: flex; align-items: center; justify-content: space-between; gap: .75rem; margin-bottom: .8rem;
    color: var(--gold-bright);
}
.photo-meta-editor-head .icon-button { width: 2rem; height: 2rem; }
.photo-featured-toggle {
    display: inline-flex; align-items: center; gap: .5rem; margin-top: .9rem;
    color: var(--text-2); cursor: pointer;
}
.photo-featured-toggle input { width: 1rem; height: 1rem; accent-color: var(--gold-deep); }

@media (max-width: 900px) {
    .photo-group-head {
        display: grid;
        grid-template-columns: minmax(0, 1fr);
    }

    .photo-group-meta {
        padding-top: 0;
    }

    .photo-group-actions {
        justify-content: flex-start;
    }
}

@media (max-width: 680px) {
    .admin-shell {
        width: min(100% - 1rem, 1080px);
        margin-top: 0.75rem;
    }

    .panel-head,
    .article-editor-head,
    .photo-group-head,
    .form-grid {
        display: grid;
        grid-template-columns: 1fr;
    }

    .photo-group-actions {
        justify-content: flex-start;
    }

    .admin-panel {
        padding: 1rem;
        border-radius: var(--radius-md);
    }
}

/* ---- future plan admin ---- */
.future-admin-shell .admin-panel {
    scroll-margin-top: 6rem;
}

.future-editor-actions {
    display: inline-flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.45rem;
    flex-wrap: wrap;
}

.future-editor-actions .admin-secondary:disabled,
.future-image-actions .admin-secondary:disabled {
    opacity: 0.42;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.future-plan-editor .field textarea {
    min-height: 7.5rem;
}

.future-cover-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1rem;
}

.future-cover-row img,
.future-cover-empty {
    width: 8rem;
    aspect-ratio: 16 / 10;
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-soft);
}

.future-cover-row img {
    object-fit: cover;
}

.future-cover-empty {
    display: grid;
    place-items: center;
    color: var(--text-3);
    background: rgba(10, 7, 13, 0.42);
}

.future-upload-button {
    position: relative;
    overflow: hidden;
}

.future-settings-form {
    margin-bottom: 1rem;
}

.future-path-add {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.future-image-list {
    display: grid;
    gap: 0.75rem;
}

.future-image-item {
    display: grid;
    grid-template-columns: 7rem minmax(0, 1fr) auto;
    align-items: center;
    gap: 0.9rem;
    padding: 0.8rem;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    background: var(--glass);
}

.future-image-item img {
    width: 7rem;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-soft);
}

.future-image-info {
    min-width: 0;
    display: grid;
    gap: 0.25rem;
}

.future-image-info strong {
    color: var(--gold-bright);
}

.future-image-info code {
    display: block;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-3);
    font-size: 0.78rem;
}

.future-image-actions {
    display: inline-flex;
    gap: 0.35rem;
}

@media (max-width: 760px) {
    .future-editor-actions,
    .future-cover-row,
    .future-path-add,
    .future-image-item {
        display: grid;
        grid-template-columns: 1fr;
    }

    .future-image-item img,
    .future-cover-row img,
    .future-cover-empty {
        width: 100%;
    }

    .future-image-actions {
        justify-content: stretch;
    }

    .future-image-actions button {
        flex: 1;
    }
}

/* ---- travel journal admin ---- */
.travel-admin-page { min-height: 100vh; }
.travel-admin-page .stage-backdrop { z-index: -2; }
.travel-admin-page .admin-header { background: rgba(15,10,18,.8); }
.travel-admin-shell { width: min(1180px, calc(100% - 2rem)); }
.travel-admin-filters {
    display: grid; grid-template-columns: minmax(0,2fr) repeat(2,minmax(9rem,1fr));
    gap: .8rem; margin-bottom: 1.25rem;
}
.travel-admin-list { display: grid; gap: .8rem; }
.travel-admin-card {
    display: grid; grid-template-columns: 9rem minmax(0,1fr) auto; align-items: center; gap: 1rem;
    padding: .85rem; border: 1px solid var(--glass-border); border-radius: var(--radius-md);
    background: linear-gradient(145deg, rgba(255,255,255,.065), rgba(255,255,255,.02));
    transition: border-color .3s ease, transform .35s var(--ease-smooth), box-shadow .35s ease;
}
.travel-admin-card:hover { transform: translateY(-2px); border-color: var(--glass-border-bright); box-shadow: var(--shadow-soft); }
.travel-admin-cover {
    width: 9rem; aspect-ratio: 16/10; display: grid; place-items: center; overflow: hidden;
    border: 1px solid var(--glass-border); border-radius: var(--radius-sm);
    color: var(--gold); background: rgba(10,7,13,.5);
}
.travel-admin-cover img { width: 100%; height: 100%; object-fit: cover; }
.travel-admin-page .has-missing-image { position: relative; min-height: 5rem; background: rgba(10,7,13,.5); }
.travel-admin-page .has-missing-image::before {
    content: '图片暂时不可用'; position: absolute; inset: 0; display: grid; place-items: center;
    color: var(--text-3); font-family: var(--admin-font-sans); font-size: .68rem;
}
.travel-admin-page img.is-missing { opacity: 0; }
.travel-admin-cover svg { width: 1.6rem; height: 1.6rem; }
.travel-admin-card-copy { min-width: 0; display: grid; gap: .32rem; }
.travel-admin-card-copy h3 { color: var(--gold-bright); font-size: 1.55rem; line-height: 1.2; }
.travel-admin-card-copy p { color: var(--text-2); font-size: .82rem; }
.travel-admin-card-copy small { color: var(--text-3); font-size: .68rem; }
.travel-admin-badges { display: flex; flex-wrap: wrap; gap: .35rem; }
.travel-admin-badges span {
    display: inline-flex; align-items: center; min-height: 1.55rem; padding: 0 .55rem;
    border: 1px solid rgba(232,197,140,.22); border-radius: 999px;
    color: var(--gold); background: rgba(232,197,140,.07); font-size: .62rem;
}
.travel-admin-card-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: .4rem; }
.travel-admin-card-actions svg, .travel-editor svg { width: 1rem; height: 1rem; }
body.travel-editor-open { overflow: hidden; }
.travel-editor {
    position: fixed; inset: 0; z-index: 80; display: grid; place-items: center; padding: 1rem;
}
.travel-editor[hidden] { display: none; }
.travel-editor-backdrop {
    position: absolute; inset: 0; opacity: 0; background: rgba(6,4,8,.54);
    backdrop-filter: blur(0); -webkit-backdrop-filter: blur(0);
    transition: opacity .25s ease, backdrop-filter .35s ease;
}
.travel-editor-panel {
    position: relative; z-index: 1; width: min(920px,100%); height: min(92svh,880px);
    display: grid; grid-template-rows: auto minmax(0,1fr) auto; overflow: hidden;
    border: 1px solid var(--glass-border-bright); border-radius: var(--radius-lg);
    background: linear-gradient(155deg, rgba(30,21,34,.99), rgba(11,8,14,.99));
    box-shadow: 0 30px 100px rgba(0,0,0,.62), var(--inner-hi);
    opacity: 0; transform: translateY(20px) scale(.975);
    transition: opacity .25s ease, transform .38s var(--ease-smooth);
}
.travel-editor.is-open .travel-editor-backdrop { opacity: 1; backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); }
.travel-editor.is-open .travel-editor-panel { opacity: 1; transform: translateY(0) scale(1); }
.travel-editor-head {
    display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem;
    padding: 1.2rem 1.4rem; border-bottom: 1px solid var(--glass-border);
}
.travel-editor-head h2 { margin-top: .3rem; color: var(--gold-bright); font-size: 2rem; }
.travel-editor-body { overflow-y: auto; padding: 1.35rem; }
.travel-summary-input { min-height: 5.5rem !important; }
.travel-date-grid { grid-template-columns: repeat(4,minmax(0,1fr)); }
.travel-switches { display: flex; flex-wrap: wrap; gap: 1.2rem; margin: 1rem 0 1.4rem; }
.travel-switch { display: inline-flex; align-items: center; gap: .55rem; color: var(--text-2); cursor: pointer; }
.travel-switch input { position: absolute; opacity: 0; pointer-events: none; }
.travel-switch-ui {
    position: relative; width: 2.5rem; height: 1.4rem; border-radius: 999px;
    border: 1px solid rgba(255,255,255,.14); background: rgba(255,255,255,.08);
    transition: background .25s ease, border-color .25s ease;
}
.travel-switch-ui::after {
    content: ''; position: absolute; top: 2px; left: 2px; width: 1rem; height: 1rem;
    border-radius: 50%; background: var(--text-2); transition: transform .3s var(--ease-smooth), background .25s ease;
}
.travel-switch input:checked + .travel-switch-ui { background: rgba(232,197,140,.28); border-color: var(--gold); }
.travel-switch input:checked + .travel-switch-ui::after { transform: translateX(1.08rem); background: var(--gold-bright); }
.travel-images-editor {
    margin-top: 1rem; padding-top: 1.2rem; border-top: 1px solid var(--glass-border);
}
.travel-images-editor h3 { color: var(--gold-bright); font-size: 1.45rem; }
.travel-upload-trigger { position: relative; overflow: hidden; cursor: pointer; }
.travel-upload-trigger:disabled { cursor: wait; opacity: .55; }
.travel-admin-page .loading-overlay { z-index: 120; }
.travel-loading-card {
    display: grid; width: min(28rem, calc(100vw - 2rem)); max-height: calc(100svh - 2rem); gap: 1rem; overflow: hidden;
    padding: 1.25rem 1.35rem;
}
.travel-loading-message { display: flex; align-items: center; gap: .7rem; min-width: 0; }
.travel-loading-message svg { width: 1.15rem; height: 1.15rem; flex: 0 0 auto; animation: travel-upload-spin .9s linear infinite; }
.travel-loading-message span { min-width: 0; overflow-wrap: anywhere; }
.travel-upload-progress { display: grid; gap: .55rem; }
.travel-upload-progress[hidden] { display: none; }
.travel-upload-progress-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.travel-upload-progress-head span { min-width: 0; color: var(--text-2); overflow-wrap: anywhere; }
.travel-upload-progress-head strong { flex: 0 0 auto; color: var(--gold-bright); font-variant-numeric: tabular-nums; }
.travel-upload-progressbar {
    position: relative; width: 100%; height: .5rem; overflow: hidden;
    border: 1px solid rgba(232,197,140,.2); border-radius: 999px; background: rgba(255,255,255,.07);
}
.travel-upload-progressbar span {
    display: block; width: 0; height: 100%; border-radius: inherit; background: var(--gold-bright);
    transition: width .28s var(--ease-smooth);
}
.travel-upload-progress small { color: var(--text-3); line-height: 1.55; overflow-wrap: anywhere; }
.travel-upload-size-list {
    display: grid; max-height: min(13rem, 34svh); gap: .45rem; overflow-y: auto; padding-right: .2rem;
    scrollbar-width: thin; scrollbar-color: rgba(232,197,140,.34) transparent;
}
.travel-upload-size-list[hidden] { display: none; }
.travel-upload-size-item {
    display: grid; grid-template-columns: minmax(0,1fr) auto; gap: .2rem .7rem;
    padding: .55rem .65rem; border: 1px solid rgba(255,255,255,.09); border-radius: var(--radius-sm);
    background: rgba(255,255,255,.035);
}
.travel-upload-size-item > span { min-width: 0; color: var(--text-2); overflow-wrap: anywhere; }
.travel-upload-size-item > small { grid-column: 1 / -1; color: var(--text-3); font-variant-numeric: tabular-nums; }
.travel-upload-size-item > strong,
.travel-image-compression strong { align-self: start; color: var(--gold-bright); font-variant-numeric: tabular-nums; white-space: nowrap; }
.travel-upload-size-item > strong.is-larger,
.travel-image-compression strong.is-larger { color: var(--text-2); }
@keyframes travel-upload-spin { to { transform: rotate(360deg); } }
.travel-image-list { display: grid; gap: .75rem; }
.travel-image-editor {
    display: grid; grid-template-columns: 8rem minmax(0,1fr) auto; align-items: center; gap: .85rem;
    padding: .7rem; border: 1px solid var(--glass-border); border-radius: var(--radius-md);
    background: rgba(255,255,255,.035);
}
.travel-image-editor.is-cover { border-color: rgba(232,197,140,.46); box-shadow: inset 0 0 0 1px rgba(232,197,140,.1); }
.travel-image-details { display: grid; min-width: 0; gap: .55rem; }
.travel-image-compression {
    display: flex; min-width: 0; align-items: center; justify-content: space-between; gap: .55rem;
    color: var(--text-3); font-size: .76rem; line-height: 1.45; font-variant-numeric: tabular-nums;
}
.travel-image-compression span { min-width: 0; overflow-wrap: anywhere; }
.travel-image-preview { position: relative; width: 8rem; aspect-ratio: 4/3; overflow: hidden; border-radius: var(--radius-sm); }
.travel-image-preview img { width: 100%; height: 100%; object-fit: cover; }
.travel-image-preview span {
    position: absolute; left: .35rem; bottom: .35rem; padding: .2rem .45rem;
    border-radius: 999px; color: #211810; background: var(--gold-bright); font-size: .58rem;
}
.travel-image-actions { display: flex; max-width: 14rem; flex-wrap: wrap; justify-content: flex-end; gap: .35rem; }
.travel-image-actions button:disabled { opacity: .35; pointer-events: none; }
.travel-editor-actions {
    display: flex; justify-content: flex-end; gap: .7rem; padding: .9rem 1.4rem;
    border-top: 1px solid var(--glass-border); background: rgba(10,7,13,.78);
}

@media (max-width: 760px) {
    .travel-admin-filters, .travel-admin-card, .travel-date-grid, .travel-image-editor {
        grid-template-columns: 1fr;
    }
    .travel-admin-card { align-items: stretch; }
    .travel-admin-cover { width: 100%; }
    .travel-admin-card-actions { justify-content: stretch; }
    .travel-admin-card-actions > * { flex: 1; }
    .travel-editor { padding: .35rem; }
    .travel-editor-panel { height: calc(100svh - .7rem); border-radius: var(--radius-md); }
    .travel-editor-head { padding: 1rem; }
    .travel-editor-body { padding: 1rem; }
    .travel-image-preview { width: 100%; aspect-ratio: 16/10; }
    .travel-image-actions { max-width: none; justify-content: stretch; }
    .travel-image-actions button { flex: 1; }
    .travel-image-compression { align-items: flex-start; flex-direction: column; }
    .travel-editor-actions { position: relative; padding: .75rem 1rem; }
    .travel-admin-page .admin-header {
        display: grid; grid-template-columns: auto minmax(0,1fr) auto; align-items: center;
        gap: .75rem; padding: .75rem;
    }
    .travel-admin-page .admin-header h1 { font-size: 1.35rem; }
    .travel-admin-page .admin-header p {
        overflow: hidden; white-space: nowrap; text-overflow: ellipsis; font-size: .72rem;
    }
    .travel-admin-page #travel-logout {
        width: 2.6rem; min-height: 2.6rem; padding: 0; border-radius: 50%;
    }
    .travel-admin-page #travel-logout span { display: none; }
}