/* ─── Tokens ─── */
:root {
    --pri: #5b6abf;
    --pri-hover: #4a58a8;
    --pri-light: #eef0fb;
    --bg: #f5f5f2;
    --card: #ffffff;
    --text: #2c2c2c;
    --text2: #8b92a5;
    --border: #e9e9e4;
    --radius: 10px;
    --shadow: 0 1px 4px rgba(0,0,0,0.05);
    --shadow-up: 0 -1px 4px rgba(0,0,0,0.04);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.08);
    --ok: #34c38f;
    --err: #e25d5d;
    --warn: #e8a753;
}
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
body {
    font-family: "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
    color: var(--text);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}
img { max-width:100%; display:block; }
button { font-family: inherit; }

/* ─── Login ─── */
.login-body {
    min-height:100vh;
    display:flex; align-items:center; justify-content:center;
    background: #f0eee9;
    padding:20px;
}
.login-card {
    background:var(--card); border-radius:14px;
    padding:44px 40px 36px; width:100%; max-width:380px;
    box-shadow: var(--shadow-lg);
}
.login-brand { text-align:center; margin-bottom:28px; }
.brand-icon {
    width:60px; height:60px; border-radius:14px;
    background:var(--pri-light); display:inline-flex;
    align-items:center; justify-content:center; margin-bottom:10px;
}
.login-brand h1 { font-size:22px; font-weight:700; letter-spacing:1px; }
.brand-sub { color:var(--text2); font-size:13px; margin-top:2px; }
.field { margin-bottom:18px; }
.field label { display:block; font-size:13px; font-weight:500; margin-bottom:5px; color:#555; }
.field small { color:var(--text2); font-weight:400; }
.field input[type=text], .field input[type=password], .field input[type=number], .field textarea, .field select {
    width:100%; padding:9px 12px; border:1.5px solid var(--border); border-radius:7px;
    font-size:14px; outline:none; transition:border .2s, box-shadow .2s;
    background:#fafaf9;
}
.field input:focus, .field textarea:focus, .field select:focus {
    border-color:var(--pri); box-shadow:0 0 0 3px rgba(91,106,191,.1); background:#fff;
}
.field textarea { resize:vertical; font-family:inherit; }
.field-error { color:var(--err); font-size:13px; min-height:18px; margin-bottom:4px; }
.field-hint { font-size:12px; color:var(--text2); margin-top:4px; }
.field-row { display:flex; gap:14px; }
.flex1 { flex:1; }

.btn-login {
    width:100%; padding:11px; background:var(--pri); color:#fff; border:none;
    border-radius:8px; font-size:15px; font-weight:600; cursor:pointer;
    transition:background .2s; letter-spacing:3px;
}
.btn-login:hover { background:var(--pri-hover); }
.btn-login:disabled { opacity:.55; cursor:not-allowed; }

/* ─── Admin ─── */
.admin-body { min-height:100vh; background:var(--bg); }
.topbar {
    height:54px; background:var(--card); border-bottom:1px solid var(--border);
    display:flex; align-items:center; justify-content:space-between;
    padding:0 24px; position:sticky; top:0; z-index:100;
}
.topbar-left { display:flex; align-items:center; gap:8px; }
.topbar-brand { font-size:16px; font-weight:700; color:var(--text); letter-spacing:.5px; }
.topbar-right { display:flex; align-items:center; gap:12px; font-size:13px; }
.topbar-user { color:var(--text2); }
.topbar-logout {
    background:none; border:1px solid var(--border); color:var(--text2);
    padding:4px 14px; border-radius:6px; cursor:pointer; font-size:12px; transition:all .2s;
}
.topbar-logout:hover { border-color:#ccc; color:var(--text); }

.container { max-width:1140px; margin:0 auto; padding:22px 20px; }

/* Upload */
.upload-zone {
    border:2px dashed #d4d4ce; border-radius:var(--radius);
    padding:36px 20px; text-align:center; background:var(--card);
    cursor:pointer; transition:all .25s; margin-bottom:22px;
}
.upload-zone:hover, .upload-zone.over { border-color:var(--pri); background:var(--pri-light); }
.upload-zone svg { margin:0 auto 8px; display:block; }
.upload-zone p { font-size:14px; color:#666; }
.upload-pick { color:var(--pri); font-weight:600; cursor:pointer; text-decoration:underline; }
.upload-bar {
    background:var(--card); border-radius:var(--radius); padding:18px 20px;
    box-shadow:var(--shadow); margin-bottom:22px;
}
.upload-bar-info { display:flex; justify-content:space-between; font-size:13px; margin-bottom:6px; }
.bar-track { height:6px; background:#eee; border-radius:3px; overflow:hidden; }
.bar-fill { height:100%; background:var(--pri); border-radius:3px; transition:width .3s; width:0; }
.upload-bar-hint { font-size:12px; color:var(--text2); margin-top:6px; }

/* Grid */
.grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(270px,1fr)); gap:18px; }
.empty { grid-column:1/-1; text-align:center; padding:56px 20px; color:var(--text2); font-size:14px; }
.book-card {
    background:var(--card); border-radius:var(--radius); overflow:hidden;
    box-shadow:var(--shadow); transition:transform .2s, box-shadow .2s;
}
.book-card:hover { transform:translateY(-2px); box-shadow:var(--shadow-lg); }
.card-cover {
    aspect-ratio:16/10; background:#eae8e3; display:flex;
    align-items:center; justify-content:center; overflow:hidden; position:relative;
}
.card-cover img { width:100%; height:100%; object-fit:cover; transition:transform .3s ease; }
.book-card:hover .card-cover img { transform:scale(1.03); }
.cover-pill {
    position:absolute; top:8px; right:8px;
    padding:2px 10px; border-radius:20px; font-size:11px; font-weight:600;
}
.pill-ok { background:rgba(52,195,143,.12); color:var(--ok); }
.pill-off { background:rgba(0,0,0,.06); color:#999; }
.pill-queue { background:rgba(255,170,0,.12); color:#b97800; }
.pill-proc { background:rgba(91,106,191,.1); color:var(--pri); }
.pill-err { background:rgba(226,93,93,.1); color:var(--err); }

.cdn-pill-wrap { position:absolute; top:8px; left:8px; }
.cdn-pill {
    display:inline-block; padding:2px 8px; border-radius:20px;
    font-size:10px; font-weight:600; letter-spacing:.4px;
    background:rgba(255,255,255,.9); color:#888; backdrop-filter:blur(4px);
    box-shadow:0 1px 2px rgba(0,0,0,.06);
}
.cdn-pill.cdn-ready { color:#1a7f5b; background:rgba(225,247,236,.95); }
.cdn-pill.cdn-syncing { color:var(--pri); background:rgba(91,106,191,.12); }
.cdn-pill.cdn-pending { color:#7a6b3f; background:rgba(255,212,128,.18); }
.cdn-pill.cdn-error { color:var(--err); background:rgba(226,93,93,.12); }

.cdn-banner {
    background:#fff; border:1px solid #ececec; border-radius:10px;
    padding:10px 14px; margin:0 0 14px;
    box-shadow:0 1px 2px rgba(0,0,0,.02);
}
.cdn-banner-row {
    display:flex; align-items:center; gap:10px; font-size:13px; color:#555;
}
.cdn-text { flex:1; min-width:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.cdn-dot {
    width:8px; height:8px; border-radius:50%;
    background:#bbb; flex:0 0 auto;
}
.cdn-dot.cdn-dot-ok { background:var(--ok); }
.cdn-dot.cdn-dot-syncing { background:var(--pri); animation:cdnDotPulse 1.4s ease-in-out infinite; }
.cdn-dot.cdn-dot-paused { background:#bbb; }
@keyframes cdnDotPulse {
    0%, 100% { opacity:.45; transform:scale(.85); }
    50% { opacity:1; transform:scale(1); }
}
.cdn-pause-btn {
    flex:0 0 auto; padding:4px 10px; border:1px solid #e0e0e0;
    background:#fafafa; color:#666; border-radius:6px; cursor:pointer; font-size:12px;
}
.cdn-pause-btn:hover { background:#f0f0f0; color:#333; }
.cdn-banner-bar {
    height:3px; background:#f1f1f1; border-radius:2px; overflow:hidden; margin-top:8px;
}
.cdn-banner-fill { height:100%; width:0; background:var(--pri); transition:width .4s ease; }

.cdn-page-actions { display:flex; gap:8px; align-items:center; }
.btn-light-sm {
    background:#fff !important; color:#666 !important; border:1px solid var(--border) !important;
}
.btn-light-sm:hover { background:#f8f8f6 !important; color:var(--text) !important; }
.cdn-page { display:flex; flex-direction:column; gap:14px; }
.cdn-disabled-card,
.cdn-overview-card,
.cdn-table-wrap {
    background:var(--card); border:1px solid var(--border);
    border-radius:var(--radius); box-shadow:var(--shadow);
}
.cdn-disabled-card { padding:28px; text-align:center; }
.cdn-disabled-card h4 { font-size:16px; margin-bottom:6px; }
.cdn-disabled-card p { color:var(--text2); font-size:13px; }
.cdn-hint-card {
    padding:12px 14px;
    font-size:13px;
    line-height:1.55;
    color:var(--text);
    background:rgba(210,165,60,.14);
    border:1px solid rgba(190,140,40,.35);
    border-radius:var(--radius);
}
.cdn-hint-card + .cdn-hint-card { margin-top:-6px; }
.cdn-hint-card strong { color:var(--text); }
.cdn-bulk-actions { display:flex; gap:10px; flex-wrap:wrap; align-items:center; }
.cdn-overview-card { padding:18px 20px; }
.cdn-overview-head {
    display:flex; justify-content:space-between; align-items:flex-start; gap:20px; margin-bottom:12px;
}
.cdn-overview-head h4 { font-size:16px; margin-bottom:2px; }
.cdn-overview-head p { font-size:13px; color:var(--text2); }
.cdn-overview-head strong { font-size:28px; color:var(--pri); line-height:1; }
.cdn-overview-bar {
    height:8px; border-radius:999px; background:#f0f0ec; overflow:hidden;
}
.cdn-overview-bar i {
    display:block; height:100%; width:0; background:linear-gradient(90deg,var(--pri),#8b96de);
    border-radius:999px; transition:width .35s ease;
}
.cdn-stat-grid {
    display:grid; grid-template-columns:repeat(5,minmax(0,1fr)); gap:12px;
}
.cdn-stat-card {
    background:var(--card); border:1px solid var(--border); border-radius:var(--radius);
    padding:14px 16px; box-shadow:var(--shadow);
}
.cdn-stat-card span { display:block; font-size:12px; color:var(--text2); margin-bottom:6px; }
.cdn-stat-card strong { font-size:24px; line-height:1; color:var(--text); }
.cdn-stat-ok strong { color:var(--ok); }
.cdn-stat-sync strong { color:var(--pri); }
.cdn-stat-pending strong { color:#b97800; }
.cdn-stat-err strong { color:var(--err); }
.cdn-table-wrap { overflow:hidden; }
.cdn-table { width:100%; border-collapse:collapse; font-size:13px; }
.cdn-table th {
    text-align:left; background:#fafaf8; color:#666; font-weight:600;
    padding:12px 14px; border-bottom:1px solid var(--border);
}
.cdn-table td {
    padding:12px 14px; border-bottom:1px solid #f0f0ec; vertical-align:middle;
}
.cdn-table tr:last-child td { border-bottom:none; }
.cdn-row-sub { color:var(--text2); font-size:12px; font-weight:400; margin-top:2px; }
.cdn-status-tag {
    display:inline-block; padding:3px 9px; border-radius:999px; font-size:12px; white-space:nowrap;
    background:#f2f2f0; color:#777;
}
.cdn-status-tag.cdn-row-syncing { background:rgba(91,106,191,.1); color:var(--pri); }
.cdn-status-tag.cdn-row-pending { background:rgba(255,170,0,.12); color:#b97800; }
.cdn-status-tag.cdn-row-error { background:rgba(226,93,93,.1); color:var(--err); }
.cdn-mini-bar {
    display:inline-block; width:92px; height:5px; border-radius:999px; overflow:hidden;
    background:#eee; vertical-align:middle; margin-right:8px;
}
.cdn-mini-bar i {
    display:block; height:100%; background:var(--pri); border-radius:999px; transition:width .35s ease;
}
.cdn-mini-text { color:var(--text2); font-size:12px; }
.cdn-error-cell {
    max-width:260px; color:var(--err); white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
}
.cdn-empty-row { text-align:center; color:var(--text2); padding:30px !important; }
.cover-progress {
    position:absolute; inset:0; display:flex; flex-direction:column;
    align-items:center; justify-content:center; gap:6px;
    background:rgba(255,255,255,.88); font-size:13px; color:var(--pri); font-weight:500;
}
.card-info { padding:14px 16px; }
.card-title {
    font-size:14px; font-weight:600; white-space:nowrap;
    overflow:hidden; text-overflow:ellipsis; margin-bottom:3px;
}
.card-meta { font-size:12px; color:var(--text2); margin-bottom:10px; display:flex; align-items:center; flex-wrap:wrap; gap:0; }
.card-owner { color:var(--pri); font-weight:500; }
.card-errtext { font-size:12px; color:var(--err); margin-bottom:8px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.card-foot { display:flex; align-items:center; justify-content:space-between; }
.share-row { display:flex; align-items:center; gap:7px; }

/* Toggle */
.toggle { display:flex; align-items:center; gap:6px; cursor:pointer; font-size:13px; }
.toggle input { display:none; }
.tog {
    width:36px; height:20px; background:#ccc; border-radius:10px;
    position:relative; transition:background .25s; flex-shrink:0;
}
.tog::after {
    content:''; position:absolute; width:16px; height:16px;
    left:2px; top:2px; background:#fff; border-radius:50%;
    transition:transform .25s; box-shadow:0 1px 2px rgba(0,0,0,.15);
}
.toggle input:checked ~ .tog { background:var(--ok); }
.toggle input:checked ~ .tog::after { transform:translateX(16px); }
.tog-label { font-size:12px; color:var(--text2); }

.icon-btns { display:flex; gap:3px; }
.ibtn {
    width:30px; height:30px; border:none; background:transparent;
    border-radius:6px; cursor:pointer; display:flex; align-items:center;
    justify-content:center; color:var(--text2); transition:all .15s;
}
.ibtn:hover { background:#f0f0ec; color:var(--text); }
.ibtn-danger:hover { background:#fde8e8; color:var(--err); }

/* Toast */
.toast {
    position:fixed; bottom:32px; left:50%; transform:translateX(-50%);
    background:var(--text); color:#fff; padding:9px 24px; border-radius:8px;
    font-size:13px; z-index:9999; white-space:nowrap;
    animation:fadeUp .3s ease, fadeUp .3s ease 2s reverse forwards;
    box-shadow:0 4px 16px rgba(0,0,0,.18);
}
.toast-ok { background:#2a2a2a; }
.toast-err { background:var(--err); }
@keyframes fadeUp { from{opacity:0;transform:translateX(-50%) translateY(12px)} to{opacity:1;transform:translateX(-50%) translateY(0)} }

/* Modal */
.modal-mask {
    position:fixed; inset:0; background:rgba(0,0,0,.32);
    display:flex; align-items:center; justify-content:center;
    z-index:500; padding:20px;
    animation:maskIn .2s ease;
}
@keyframes maskIn { from{opacity:0} to{opacity:1} }
.modal {
    background:var(--card); border-radius:12px; width:100%; max-width:480px;
    box-shadow:0 16px 48px rgba(0,0,0,.15); overflow:hidden;
    animation:modalIn .25s ease;
}
@keyframes modalIn { from{opacity:0;transform:scale(.95) translateY(10px)} to{opacity:1;transform:scale(1) translateY(0)} }
.modal-head {
    display:flex; align-items:center; justify-content:space-between;
    padding:16px 22px; border-bottom:1px solid var(--border);
}
.modal-head h3 { font-size:16px; font-weight:600; }
.modal-x { background:none; border:none; font-size:22px; color:#aaa; cursor:pointer; line-height:1; }
.modal-x:hover { color:var(--text); }
.modal-body { padding:20px 22px; max-height:65vh; overflow-y:auto; }
.modal-foot {
    padding:14px 22px; border-top:1px solid var(--border);
    display:flex; justify-content:flex-end; gap:10px;
}
.btn-flat { background:none; border:1px solid var(--border); padding:7px 18px; border-radius:7px; cursor:pointer; font-size:13px; color:var(--text2); }
.btn-flat:hover { border-color:#ccc; }
.btn-primary-sm { background:var(--pri); color:#fff; border:none; padding:7px 22px; border-radius:7px; cursor:pointer; font-size:13px; font-weight:500; }
.btn-primary-sm:hover { background:var(--pri-hover); }

/* Mode selector */
.mode-opts { display:grid; grid-template-columns:repeat(3,1fr); gap:8px; margin-top:6px; }
.mode-opts-3 { grid-template-columns:repeat(3,1fr); }
.mode-opt {
    display:flex; flex-direction:column; align-items:center; gap:4px;
    padding:10px 4px 8px; border:1.5px solid var(--border); border-radius:8px;
    cursor:pointer; transition:all .2s; text-align:center;
}
.mode-opt input { display:none; }
.mode-opt svg { width:64px; height:40px; color:var(--text2); transition:color .2s; }
.mode-opt span { font-size:12px; color:var(--text2); font-weight:500; transition:color .2s; }
.mode-opt:hover { border-color:#ccc; }
.mode-opt:has(input:checked) { border-color:var(--pri); background:var(--pri-light); }
.mode-opt:has(input:checked) svg { color:var(--pri); }
.mode-opt:has(input:checked) span { color:var(--pri); }

.bg-opts { display:flex; gap:8px; margin-top:4px; }
.bg-opt {
    flex:1; display:flex; align-items:center; justify-content:center;
    gap:4px; padding:7px; border:1.5px solid var(--border); border-radius:7px;
    cursor:pointer; font-size:13px; transition:border-color .2s;
}
.bg-opt:has(input:checked) { border-color:var(--pri); background:var(--pri-light); }
.bg-opt input { display:none; }

/* Password strength */
.pwd-strength { margin-top:6px; display:flex; align-items:center; gap:8px; min-height:14px; }
.pwd-bar { flex:1; height:4px; background:#eee; border-radius:2px; overflow:hidden; }
.pwd-fill { height:100%; border-radius:2px; transition:width .3s, background .3s; }
.pwd-label { font-size:11px; font-weight:600; min-width:16px; }

/* Spinner */
.spinner-sm {
    width:22px; height:22px; border:3px solid rgba(91,106,191,.18);
    border-top-color:var(--pri); border-radius:50%; animation:spin .7s linear infinite;
}
@keyframes spin { to{transform:rotate(360deg)} }

/* ═══════════════════ VIEWER ═══════════════════ */
.viewer-body {
    margin:0; min-height:100vh; overflow:hidden;
    background:#e8e4dd; user-select:none;
}
.v-message {
    display:flex; flex-direction:column; align-items:center;
    justify-content:center; height:100vh; text-align:center; padding:20px;
}
.v-message h2 { font-size:20px; font-weight:500; color:#555; margin:16px 0 6px; }
.v-message p { font-size:14px; color:#999; }
.v-spinner {
    width:40px; height:40px; border:3px solid #ddd;
    border-top-color:#999; border-radius:50%; animation:spin .7s linear infinite;
}
.v-spinner-lg {
    width:46px; height:46px; border-width:4px;
    border-color:rgba(91,106,191,.14); border-top-color:var(--pri);
}

.v-loading {
    position:fixed; inset:0; display:flex;
    background:rgba(245,243,238,.72); backdrop-filter:blur(10px); z-index:300;
    transition:opacity .28s ease, visibility .28s ease;
}
.v-loading.hidden { opacity:0; visibility:hidden; pointer-events:none; }
.v-loading-inner {
    position:absolute; left:50%; top:50%;
    transform:translate(-50%, -50%);
    display:flex; flex-direction:column; align-items:center; justify-content:center;
    gap:14px; text-align:center;
}
.v-loading-book {
    width:66px; height:48px; position:relative;
}
.v-loading-book span {
    position:absolute; top:0; width:30px; height:46px; border-radius:5px;
    background:linear-gradient(180deg, rgba(91,106,191,.16), rgba(91,106,191,.06));
    border:1px solid rgba(91,106,191,.12);
    box-shadow:0 6px 18px rgba(91,106,191,.1);
}
.v-loading-book span:first-child {
    left:4px; transform:perspective(90px) rotateY(14deg); transform-origin:left center;
}
.v-loading-book span:last-child {
    right:4px; transform:perspective(90px) rotateY(-14deg); transform-origin:right center;
}

.v-wrap { display:flex; flex-direction:column; height:100vh; }
.v-wrap:fullscreen {
    width:100%;
    height:100%;
    background:#e8e4dd;
}
.viewer-fullscreen .v-wrap {
    width:100vw;
    height:100vh;
}
.v-header { text-align:center; padding:10px 16px; flex-shrink:0; position:relative; }
.v-title {
    font-size:14px; font-weight:400; color:rgba(0,0,0,.45);
    white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
}
.v-back {
    position:absolute; left:16px; top:50%; transform:translateY(-50%);
    display:inline-flex; align-items:center; gap:4px;
    font-size:13px; color:rgba(0,0,0,.55); text-decoration:none;
    padding:4px 10px 4px 6px; border-radius:6px;
    background:rgba(255,255,255,.5); border:1px solid rgba(0,0,0,.06);
    max-width:40%; transition:all .2s;
}
.v-back span { white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.v-back:hover { background:#fff; color:var(--pri); border-color:var(--pri-light); }
.v-stage {
    flex:1; display:flex; align-items:center; justify-content:center;
    overflow:hidden; padding:0 16px 64px; position:relative;
}
.v-wrap:fullscreen .v-stage,
.viewer-fullscreen .v-stage {
    padding:0 16px 72px;
}
.flipbook { position:relative; }
.flipbook, .page-item, .page-item img, .half-crop, .stf__item {
    transform:translateZ(0); backface-visibility:hidden;
}
.page-item { background:#fff; overflow:hidden; will-change:transform; }
.page-item img {
    width:100%; height:100%; object-fit:contain; display:block; pointer-events:none;
    will-change:transform, opacity; transition:opacity .18s ease;
}

/* 跨页拆分：把一张横版图拆成左右两半 */
.half-crop { width:100%; height:100%; overflow:hidden; position:relative; }
.half-crop img {
    display:block; position:absolute; left:0; top:0;
    width:200%; max-width:none; height:100%;
    object-fit:fill; pointer-events:none;
}
.half-crop img.half-right { left:-100%; }

/* Binding overlay */
.binding-overlay {
    position:absolute; top:5%; bottom:5%; left:50%;
    transform:translateX(-50%); pointer-events:none; z-index:10;
    background: linear-gradient(90deg,
        rgba(0,0,0,0) 0%,
        rgba(0,0,0,.04) 30%,
        rgba(0,0,0,.08) 50%,
        rgba(0,0,0,.04) 70%,
        rgba(0,0,0,0) 100%);
    display:none;
}
.binding-overlay.show { display:block; }

/* Scroll mode */
.v-stage.scroll-mode { overflow-y:auto; display:block; padding:16px; }
.scroll-page {
    max-width:760px; margin:0 auto 2px; background:#fff;
    box-shadow:0 1px 6px rgba(0,0,0,.06); border-radius:2px;
}
.scroll-page img { width:100%; display:block; }

/* ─── Toolbar ─── */
.v-bar {
    position:fixed; bottom:16px; left:50%; transform:translateX(-50%);
    background:rgba(255,255,255,.94); backdrop-filter:blur(16px);
    border-radius:14px; padding:6px 14px; display:flex;
    align-items:center; gap:6px;
    box-shadow:0 4px 20px rgba(0,0,0,.1), 0 0 0 1px rgba(0,0,0,.04);
    z-index:50;
}
.v-btn {
    width:36px; height:36px; border:none; background:transparent;
    color:#666; border-radius:8px; cursor:pointer; display:flex;
    align-items:center; justify-content:center; transition:all .15s;
    position:relative;
}
.v-btn:hover { background:rgba(0,0,0,.06); color:var(--text); }
.v-btn.active { background:var(--pri-light); color:var(--pri); }
.v-btn.muted .sound-wave { display:none; }
.v-btn.muted::after {
    content:''; position:absolute; width:16px; height:1.6px;
    background:currentColor; transform:rotate(-35deg);
    border-radius:2px; opacity:.8;
}
.v-pager { font-size:13px; color:#888; min-width:56px; text-align:center; font-variant-numeric:tabular-nums; user-select:none; }
.v-sep { width:1px; height:20px; background:var(--border); margin:0 2px; flex-shrink:0; }

/* ─── Half-page indicators (spread + mobile) ─── */
.half-badge {
    display:inline-flex; align-items:center; gap:5px;
    padding:2px 8px 2px 6px; border-radius:12px;
    font-size:10px; font-weight:500; line-height:1;
    background:rgba(255,255,255,.62); color:rgba(0,0,0,.48);
    border:1px solid rgba(0,0,0,.06);
    user-select:none; flex-shrink:0;
}
.half-badge[hidden] { display:none !important; }
.half-badge-dot {
    width:10px; height:10px; border-radius:50%;
    background:linear-gradient(90deg, rgba(0,0,0,.52) 50%, rgba(0,0,0,.14) 50%);
    box-shadow:inset 0 0 0 1px rgba(0,0,0,.12);
    transition:transform .25s ease;
}
.half-badge.is-right .half-badge-dot { transform:scaleX(-1); }

.half-hint {
    position:absolute; right:0; top:50%; transform:translateY(-50%);
    display:inline-flex; align-items:center; justify-content:center;
    width:26px; height:34px; border-radius:12px 0 0 12px;
    background:rgba(255,255,255,.48); color:rgba(0,0,0,.38);
    backdrop-filter:blur(8px); -webkit-backdrop-filter:blur(8px);
    border:1px solid rgba(255,255,255,.45);
    border-right:none;
    box-shadow:0 6px 18px rgba(0,0,0,.06);
    pointer-events:none; z-index:5;
}
.half-hint[hidden] { display:none !important; }
.half-hint-text { white-space:nowrap; }

/* 在 stage 上的左半/右半状态：用克制的边缘阴影暗示还有另一半。 */
.v-stage.half-left-active::after,
.v-stage.half-right-active::before {
    content:''; position:absolute; top:0; bottom:64px;
    width:14px; pointer-events:none; z-index:4;
}
.v-stage.half-left-active::after {
    right:0;
    background:linear-gradient(to right, transparent, rgba(0,0,0,.045));
}
.v-stage.half-right-active::before {
    left:0; width:7px;
    background:linear-gradient(to left, transparent, rgba(0,0,0,.055));
}

/* Viewer bar auto-fade */
.v-bar { transition:opacity .4s ease; }
.v-bar.faded { opacity:.3; }
.v-bar.faded:hover { opacity:1; }

/* Thumbnails */
.v-thumbs {
    position:fixed; left:0; top:0; bottom:0; width:164px;
    background:rgba(255,255,255,.97); backdrop-filter:blur(12px);
    transform:translateX(-100%); transition:transform .3s ease; z-index:200;
    display:flex; flex-direction:column;
    box-shadow:2px 0 16px rgba(0,0,0,.06);
    border-right:1px solid var(--border);
}
.v-thumbs.open { transform:translateX(0); }
.v-thumbs-head {
    display:flex; align-items:center; justify-content:space-between;
    padding:12px 14px; font-size:13px; font-weight:500; color:#666;
    border-bottom:1px solid var(--border); flex-shrink:0;
}
.v-thumbs-close { background:none; border:none; font-size:20px; color:#aaa; cursor:pointer; }
.v-thumbs-close:hover { color:var(--text); }
.v-thumbs-list { flex:1; overflow-y:auto; padding:10px; }
.v-thumbs-list::-webkit-scrollbar { width:4px; }
.v-thumbs-list::-webkit-scrollbar-thumb { background:#ddd; border-radius:2px; }
.thumb-item {
    margin-bottom:8px; cursor:pointer; border:2px solid transparent;
    border-radius:4px; overflow:hidden; transition:border-color .2s; text-align:center;
}
.thumb-item:hover { border-color:#ccc; }
.thumb-item.active { border-color:var(--pri); }
.thumb-item img { width:100%; display:block; background:#f5f5f2; }
.thumb-item span { display:block; font-size:11px; color:#aaa; padding:3px 0; }
.thumb-item.active span { color:var(--pri); font-weight:500; }

/* ─── Tab Buttons ─── */
.tab-btn {
    background:none; border:1px solid var(--border); color:var(--text2);
    padding:4px 14px; border-radius:6px; cursor:pointer; font-size:12px;
    transition:all .2s; margin-right:2px;
}
.tab-btn.active { background:var(--pri); color:#fff; border-color:var(--pri); }
.tab-btn:hover:not(.active) { border-color:#ccc; color:var(--text); }

/* ─── User Table ─── */
.user-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:16px; }
.user-header h3 { font-size:16px; font-weight:600; }
.user-table-wrap { background:var(--card); border-radius:var(--radius); box-shadow:var(--shadow); overflow:hidden; }
.user-table { width:100%; border-collapse:collapse; font-size:14px; }
.user-table th {
    text-align:left; padding:12px 16px; font-size:12px; font-weight:600;
    color:var(--text2); text-transform:uppercase; letter-spacing:.5px;
    background:#fafaf9; border-bottom:1px solid var(--border);
}
.user-table td { padding:12px 16px; border-bottom:1px solid var(--border); vertical-align:middle; }
.user-table tr:last-child td { border-bottom:none; }
.user-table tr:hover { background:rgba(91,106,191,.02); }
.role-badge {
    display:inline-block; padding:2px 10px; border-radius:20px;
    font-size:12px; font-weight:500;
}
.role-super { background:rgba(91,106,191,.1); color:var(--pri); }
.role-admin { background:rgba(0,0,0,.04); color:var(--text2); }
.user-actions { display:flex; gap:4px; }

/* ─── 404 ─── */
.page-404 {
    min-height:100vh; display:flex; align-items:center; justify-content:center;
    background:var(--bg); padding:20px;
}
.not-found { text-align:center; }
.nf-code {
    font-size:120px; font-weight:800; letter-spacing:-4px;
    color:var(--border); line-height:1;
    background:linear-gradient(135deg, #d4d4ce 0%, #b0b8c9 100%);
    -webkit-background-clip:text; -webkit-text-fill-color:transparent;
    background-clip:text;
}
.not-found h2 { font-size:20px; font-weight:600; color:var(--text); margin:12px 0 6px; }
.not-found p { font-size:14px; color:var(--text2); margin-bottom:24px; }
.nf-link {
    display:inline-block; padding:9px 28px; background:var(--pri); color:#fff;
    border-radius:8px; text-decoration:none; font-size:14px; font-weight:500;
    transition:background .2s;
}
.nf-link:hover { background:var(--pri-hover); }

/* ─── Responsive ─── */
@media(max-width:768px) {
    .login-card { padding:32px 24px; }
    .container { padding:16px 12px; }
    .grid { grid-template-columns:repeat(auto-fill,minmax(220px,1fr)); gap:12px; }
    .upload-zone { padding:28px 14px; }
    .v-header { padding:6px 12px; }
    .v-title { font-size:13px; }
    .v-bar { bottom:8px; padding:4px 8px; border-radius:12px; gap:3px; }
    .v-btn { width:32px; height:32px; }
    .v-pager { font-size:12px; min-width:46px; }
    .v-sep { height:16px; margin:0 1px; }
    .v-thumbs { width:120px; }
    .v-stage { padding:0 2px 56px; }
    .half-badge { font-size:10px; padding:2px 7px 2px 5px; }
    .half-badge-dot { width:9px; height:9px; }
    .half-hint { right:0; width:24px; height:32px; }
    .v-stage.half-left-active::after,
    .v-stage.half-right-active::before { bottom:54px; }
}
@media(max-width:480px) {
    .grid { grid-template-columns:1fr; }
    .topbar-user { display:none; }
    .field-row { flex-direction:column; gap:0; }
    .mode-opts, .mode-opts-3 { grid-template-columns:repeat(3,1fr); }
}

/* ─── Collection Cards (Admin) ─── */
.col-card .card-cover { background:#f3f1ec; }
.col-cover-stack {
    position:absolute; inset:0;
    display:flex; align-items:center; justify-content:center;
}
.col-cover-stack .col-cover-l1,
.col-cover-stack .col-cover-l2 {
    position:absolute; width:78%; height:78%;
    background:rgba(255,255,255,.5);
    border:1px solid rgba(0,0,0,.06);
    border-radius:4px; box-shadow:var(--shadow);
}
.col-cover-stack .col-cover-l1 { transform:rotate(-4deg) translate(-6px,2px); }
.col-cover-stack .col-cover-l2 { transform:rotate(3deg) translate(6px,-2px); background:rgba(255,255,255,.7); }
.col-cover-main {
    position:relative; width:82%; height:82%;
    border-radius:4px; overflow:hidden;
    box-shadow:0 4px 16px rgba(0,0,0,.08);
    background:#fff;
}
.col-cover-main img { width:100%; height:100%; object-fit:cover; }
.col-cover-placeholder {
    width:100%; height:100%; display:flex;
    align-items:center; justify-content:center; background:#f0eee9;
}
.col-count-badge {
    position:absolute; left:8px; top:8px;
    padding:2px 10px; border-radius:20px; font-size:11px; font-weight:600;
    background:rgba(91,106,191,.12); color:var(--pri);
    backdrop-filter:blur(4px);
}

/* ─── Collection Items Modal ─── */
.modal.modal-wide { max-width:780px; }
.col-items-wrap {
    display:grid; grid-template-columns:1fr 1fr; gap:14px;
    min-height:340px;
}
.col-items-col {
    display:flex; flex-direction:column;
    border:1px solid var(--border); border-radius:8px;
    background:#fafaf9; overflow:hidden;
}
.col-items-head {
    padding:10px 12px; font-size:13px; font-weight:600;
    background:#fff; border-bottom:1px solid var(--border);
    display:flex; align-items:center; gap:8px;
}
.col-items-head small { color:var(--text2); font-weight:400; font-size:11px; }
.col-items-cnt {
    background:var(--pri-light); color:var(--pri);
    padding:1px 8px; border-radius:10px; font-size:12px;
}
.col-items-search {
    flex:1; padding:4px 10px; border:1px solid var(--border);
    border-radius:6px; font-size:12px; background:#fafaf9; outline:none;
}
.col-items-search:focus { border-color:var(--pri); background:#fff; }
.col-items-list {
    list-style:none; padding:6px; margin:0;
    overflow-y:auto; max-height:46vh; flex:1;
}
.col-items-empty {
    text-align:center; color:var(--text2); font-size:13px;
    padding:32px 12px;
}
.col-items-item {
    display:flex; align-items:center; gap:8px;
    padding:7px 8px; margin-bottom:4px;
    background:#fff; border:1px solid var(--border);
    border-radius:6px; font-size:13px;
    cursor:grab; transition:all .15s;
}
.col-items-item-avail { cursor:default; }
.col-items-item:hover { border-color:var(--pri-light); box-shadow:var(--shadow); }
.col-items-item.dragging { opacity:.4; }
.col-items-item.drag-over { border-color:var(--pri); background:var(--pri-light); }
.col-items-handle {
    color:var(--text2); cursor:grab; font-weight:700;
    user-select:none; flex-shrink:0;
}
.col-items-name {
    flex:1; white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
}
.col-items-meta { color:var(--text2); font-size:11px; flex-shrink:0; }
.col-items-x, .col-items-add {
    width:22px; height:22px; border:none; border-radius:4px;
    cursor:pointer; font-size:14px; line-height:1;
    display:flex; align-items:center; justify-content:center;
    flex-shrink:0; transition:all .15s;
}
.col-items-x { background:transparent; color:var(--text2); }
.col-items-x:hover { background:#fde8e8; color:var(--err); }
.col-items-add { background:var(--pri-light); color:var(--pri); font-weight:600; }
.col-items-add:hover { background:var(--pri); color:#fff; }

/* ─── Collection Public Page ─── */
.col-body {
    min-height:100vh;
    color:var(--text);
    background:var(--bg);
}
.col-hero { padding:34px 20px 18px; }
.col-hero-inner {
    max-width:1140px; margin:0 auto;
    background:var(--card);
    border:1px solid var(--border);
    border-radius:var(--radius);
    padding:22px 24px;
    box-shadow:var(--shadow);
}
.col-hero-title {
    font-size:22px;
    line-height:1.25;
    font-weight:700;
    letter-spacing:.2px;
    margin-bottom:6px;
}
.col-hero-desc {
    max-width:780px;
    font-size:14px;
    color:var(--text2);
    line-height:1.75;
    margin-bottom:10px;
}
.col-hero-meta {
    color:var(--text2);
    font-size:12px;
}
.col-main { max-width:1140px; margin:0 auto; padding:38px 20px 56px; }
.col-section-head {
    display:flex;
    align-items:center;
    justify-content:space-between;
    margin:6px 0 14px;
}
.col-section-head h2 {
    font-size:16px;
    font-weight:600;
}
.col-grid {
    display:grid;
    grid-template-columns:repeat(auto-fill,minmax(240px,1fr));
    gap:18px;
}
.col-item {
    background:var(--card);
    border-radius:var(--radius);
    overflow:hidden;
    box-shadow:var(--shadow);
    text-decoration:none;
    color:inherit;
    display:block;
    transition:transform .2s, box-shadow .2s;
}
.col-item:hover {
    transform:translateY(-2px);
    box-shadow:var(--shadow-lg);
}
.col-item-cover {
    position:relative;
    aspect-ratio:16/10;
    background:#eae8e3;
    overflow:hidden;
    display:flex;
    align-items:center;
    justify-content:center;
}
.col-item-cover img {
    width:100%;
    height:100%;
    object-fit:cover;
    transition:transform .3s ease;
}
.col-item:hover .col-item-cover img { transform:scale(1.03); }
.col-item-cover-empty { background:#f0eee9; }
.col-item-index {
    position:absolute;
    left:8px;
    top:8px;
    padding:2px 8px;
    border-radius:20px;
    background:rgba(255,255,255,.9);
    color:var(--text2);
    font-size:11px;
    font-weight:600;
}
.col-item-info { padding:14px 16px; }
.col-item-title {
    font-size:14px;
    font-weight:600;
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
    margin-bottom:4px;
}
.col-item-meta {
    display:flex;
    align-items:center;
    gap:8px;
    font-size:12px;
    color:var(--text2);
}
.col-item-disabled { opacity:.62; cursor:not-allowed; }
.col-empty {
    text-align:center;
    padding:56px 20px;
    color:var(--text2);
    font-size:14px;
    background:var(--card);
    border-radius:var(--radius);
    box-shadow:var(--shadow);
}
@media(max-width:768px) {
    .col-hero { padding:18px 12px 14px; }
    .col-hero-inner { padding:18px 16px; }
    .col-hero-title { font-size:20px; }
    .col-hero-desc { font-size:13px; }
    .col-main { padding:28px 12px 42px; }
    .col-grid { grid-template-columns:repeat(auto-fill,minmax(160px,1fr)); gap:12px; }
    .col-item-info { padding:12px 13px; }
    .col-item-title { font-size:13px; }
    .col-items-wrap { grid-template-columns:1fr; }
    .col-items-list { max-height:32vh; }
}