:root {
    --bg: #edf3f8;
    --bg-top: #f7fafe;
    --bg-glow: rgba(37, 99, 235, 0.08);
    --panel: #fff;
    --panel-soft: #f8fbff;
    --panel-muted: #f8fafc;
    --line: #d7e2ee;
    --text: #0f172a;
    --muted: #64748b;
    --primary: #2563eb;
    --primary-strong: #1d4ed8;
    --primary-soft: #dbeafe;
    --primary-tint: #e0f2fe;
    --primary-ink: #1e40af;
    --primary-ink-strong: #0c4a6e;
    --danger: #dc2626;
    --danger-strong: #b91c1c;
    --side: #0f172a;
    --side-elev: #0d1730;
    --side-line: #1f2937;
    --side-text: #cbd5e1;
    --side-strong: #fff;
    --side-muted: #93a3bb;
    --side-card: #111d31;
    --side-card-border: #263247;
    --side-input: #111c32;
    --side-input-border: #2b3952;
    --side-input-focus: #3b82f6;
    --side-hover: rgba(255, 255, 255, 0.08);
    --side-active: #1b2f55;
    --side-active-text: #dbeafe;
    --side-active-border: #93c5fd;
    --toolbar-bg: #ffffffdc;
    --tabs-bg: #ffffffdc;
    --control: #f8fafc;
    --control-hover: #e2e8f0;
    --control-text: #334155;
    --input-bg: #f8fbff;
    --input-focus-bg: #fff;
    --chip-bg: #fff;
    --chip-text: #1e3a8a;
    --chip-hover: #eff6ff;
    --item-bg: #fff;
    --badge-bg: #f8fbff;
    --shadow: 0 10px 30px rgba(2, 6, 23, 0.08);
    --sidebar-shadow: 0 24px 48px rgba(2, 6, 23, 0.35);
    --modal-shadow: 0 24px 50px rgba(2, 6, 23, 0.25);
    --toast-bg: rgba(15, 23, 42, 0.95);
    --theme-shell: #f8fbff;
    --theme-track: #edf3f8;
    --theme-label: #475569;
    --theme-active-bg: #fff;
    --theme-active-text: #0f172a;
    --theme-active-shadow: 0 6px 16px rgba(15, 23, 42, 0.12);
    --font-body: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    --tree-row-height: 30px;
}

body[data-theme="modern"] {
    --bg: #e7eef6;
    --bg-top: #f3f8ff;
    --bg-glow: rgba(14, 165, 233, 0.16);
    --panel: #ffffffeb;
    --panel-soft: #f1f7fb;
    --panel-muted: #eef4f8;
    --line: #c6d6e4;
    --text: #102033;
    --muted: #5f7389;
    --primary: #0f766e;
    --primary-strong: #115e59;
    --primary-soft: #ccfbf1;
    --primary-tint: #dff5ff;
    --primary-ink: #115e59;
    --primary-ink-strong: #164e63;
    --side: #0b1324;
    --side-elev: #111b33;
    --side-line: #23314d;
    --side-text: #dbe7f7;
    --side-strong: #f8fbff;
    --side-muted: #9fb4cd;
    --side-card: #12203a;
    --side-card-border: #2d4767;
    --side-input: #12203a;
    --side-input-border: #315476;
    --side-input-focus: #38bdf8;
    --side-active: #17345a;
    --side-active-text: #f0fdff;
    --side-active-border: #67e8f9;
    --toolbar-bg: rgba(255, 255, 255, 0.78);
    --tabs-bg: rgba(255, 255, 255, 0.72);
    --control: #f1f6fa;
    --control-hover: #dde8f1;
    --control-text: #27435c;
    --input-bg: #f5fbff;
    --input-focus-bg: #fff;
    --chip-bg: #fff;
    --chip-text: #0f4c81;
    --chip-hover: #e0f2fe;
    --item-bg: rgba(255, 255, 255, 0.92);
    --badge-bg: #eef8fc;
    --shadow: 0 18px 38px rgba(15, 23, 42, 0.12);
    --sidebar-shadow: 0 24px 48px rgba(6, 14, 28, 0.4);
    --modal-shadow: 0 24px 50px rgba(11, 27, 51, 0.24);
    --theme-shell: #eef5fa;
    --theme-track: #dce7f0;
    --theme-label: #486279;
    --theme-active-bg: linear-gradient(135deg, #0f766e, #0ea5e9);
    --theme-active-text: #f8fdff;
    --theme-active-shadow: 0 10px 20px rgba(14, 116, 144, 0.2);
}

body[data-theme="ancient"] {
    --bg: #efe3cd;
    --bg-top: #f7f0e2;
    --bg-glow: rgba(166, 91, 44, 0.12);
    --panel: #fffaf0;
    --panel-soft: #f7efe1;
    --panel-muted: #f2eadb;
    --line: #d8c5a7;
    --text: #3c2b1f;
    --muted: #7b6651;
    --primary: #8c4b2f;
    --primary-strong: #6f3923;
    --primary-soft: #ead3bc;
    --primary-tint: #f2dfca;
    --primary-ink: #6f3923;
    --primary-ink-strong: #5a301d;
    --danger: #b4533c;
    --danger-strong: #923926;
    --side: #3f2c1f;
    --side-elev: #493123;
    --side-line: #6a4d36;
    --side-text: #eadfce;
    --side-strong: #fff7ea;
    --side-muted: #ccb79c;
    --side-card: #4b3425;
    --side-card-border: #74563e;
    --side-input: #513727;
    --side-input-border: #7a5a3f;
    --side-input-focus: #d0a56f;
    --side-active: #6a472f;
    --side-active-text: #fff6e8;
    --side-active-border: #d9b27c;
    --toolbar-bg: rgba(255, 250, 240, 0.88);
    --tabs-bg: rgba(255, 250, 240, 0.85);
    --control: #f7efe1;
    --control-hover: #ecdeca;
    --control-text: #5a4532;
    --input-bg: #fff8eb;
    --input-focus-bg: #fffdf7;
    --chip-bg: #fffaf0;
    --chip-text: #734327;
    --chip-hover: #f7ead5;
    --item-bg: #fffdf7;
    --badge-bg: #f7efe1;
    --shadow: 0 14px 28px rgba(74, 51, 36, 0.14);
    --sidebar-shadow: 0 24px 48px rgba(62, 39, 24, 0.28);
    --modal-shadow: 0 24px 50px rgba(74, 51, 36, 0.22);
    --theme-shell: #f2e4cf;
    --theme-track: #e6d4b5;
    --theme-label: #6b5139;
    --theme-active-bg: linear-gradient(135deg, #8c4b2f, #b77945);
    --theme-active-text: #fff7ea;
    --theme-active-shadow: 0 10px 20px rgba(140, 75, 47, 0.2);
    --font-body:
        "KaiTi", "STKaiti", "Noto Serif SC", "Source Han Serif SC", "SimSun",
        serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html,
body {
    height: 100%;
}
body {
    font-family: var(--font-body);
    color: var(--text);
    background:
        radial-gradient(circle at top left, var(--bg-glow), transparent 26%),
        linear-gradient(180deg, var(--bg-top), var(--bg));
    display: flex;
    overflow: hidden;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.hidden {
    display: none !important;
}
.nav-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(2, 6, 23, 0.48);
    z-index: 35;
}

.sidebar {
    width: 300px;
    min-width: 240px;
    background: var(--side);
    color: var(--side-text);
    border-right: 1px solid var(--side-line);
    display: flex;
    flex-direction: column;
    z-index: 40;
}

.side-head {
    padding: 14px;
    border-bottom: 1px solid var(--side-line);
}
.brand {
    color: var(--side-strong);
    font-size: 16px;
    font-weight: 700;
}
.sub {
    margin-top: 4px;
    font-size: 12px;
    color: var(--side-muted);
}
.side-stats {
    margin-top: 10px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 7px;
}
.side-stats .s {
    border: 1px solid var(--side-card-border);
    background: var(--side-card);
    border-radius: 8px;
    padding: 6px;
    text-align: center;
}
.side-stats b {
    display: block;
    color: var(--side-strong);
    font-size: 14px;
}
.side-stats span {
    display: block;
    color: var(--side-muted);
    font-size: 11px;
    margin-top: 3px;
}

.side-filter {
    padding: 10px 12px;
    border-bottom: 1px solid var(--side-line);
    background: linear-gradient(180deg, var(--side), var(--side-elev));
}
.side-filter input {
    width: 100%;
    height: 34px;
    border: 1px solid var(--side-input-border);
    border-radius: 8px;
    background: var(--side-input);
    color: var(--side-strong);
    outline: none;
    padding: 0 10px;
    font-size: 13px;
}
.side-filter input::placeholder {
    color: var(--side-muted);
}
.side-filter input:focus {
    border-color: var(--side-input-focus);
    background: var(--side-card);
}

.mode {
    margin-top: 8px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}
.mode button {
    height: 30px;
    border: 1px solid var(--side-input-border);
    border-radius: 8px;
    background: var(--side-input);
    color: var(--side-muted);
    font-size: 12px;
    cursor: pointer;
}
.mode button:hover,
.mode button:focus-visible {
    background: var(--side-card);
}
.mode button.active {
    border-color: var(--side-input-focus);
    background: var(--side-active);
    color: var(--side-active-text);
}

.tree {
    flex: 1;
    overflow: auto;
    padding: 6px 8px 10px;
}
.tree::-webkit-scrollbar {
    width: 5px;
}
.tree::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
}
.tree-wrap {
    display: block;
    min-width: 0;
}
.tree-row {
    display: flex;
    align-items: center;
    gap: 4px;
    min-width: 0;
    height: var(--tree-row-height);
    min-height: var(--tree-row-height);
    max-height: var(--tree-row-height);
    padding-left: calc(10px + var(--tree-depth, 0) * 14px);
    overflow: hidden;
}
.ti,
.fi {
    display: flex;
    align-items: center;
    gap: 8px;
    border: none;
    border-left: 3px solid transparent;
    border-radius: 8px;
    background: transparent;
    color: inherit;
    cursor: pointer;
    text-align: left;
}
.ti {
    width: 100%;
    height: var(--tree-row-height);
    min-height: var(--tree-row-height);
    max-height: var(--tree-row-height);
    margin: 0;
    padding: 0 10px 0 0;
    font-size: 12px;
    line-height: 1;
    overflow: hidden;
}
.fi {
    width: 100%;
    min-height: 34px;
    margin: 0;
    padding: 0 10px;
}
.ti:hover,
.ti:focus-visible,
.fi:hover,
.fi:focus-visible {
    background: var(--side-hover);
    outline: none;
}
.ti.active,
.fi.active {
    background: var(--side-active);
    color: var(--side-active-text);
    border-left-color: var(--side-active-border);
}
.arr-btn {
    flex: 0 0 18px;
    width: 18px;
    height: var(--tree-row-height);
    border: none;
    border-radius: 6px;
    background: transparent;
    color: inherit;
    cursor: pointer;
    text-align: center;
    font-size: 9px;
    line-height: 1;
    opacity: 0.75;
    transform: rotate(0);
    transition:
        transform 0.14s,
        background 0.14s;
}
.arr-btn:hover,
.arr-btn:focus-visible {
    background: var(--side-hover);
    outline: none;
}
.arr-btn:disabled {
    cursor: default;
}
.arr-btn:disabled:hover,
.arr-btn:disabled:focus-visible {
    background: transparent;
}
.arr-btn.open {
    transform: rotate(90deg);
}
.arr-btn.empty {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}
.nm,
.fi-main {
    flex: 1;
    min-width: 0;
}
.nm,
.fi-name {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.cnt,
.fi-count {
    font-size: 11px;
    opacity: 0.76;
}
.cnt {
    flex: 0 0 auto;
    margin-left: auto;
    padding-left: 8px;
    font-variant-numeric: tabular-nums;
}
.children {
    display: none;
    padding: 0;
}
.children.open {
    display: block;
}
.fg {
    padding: 6px 2px 2px;
}
.fg-title {
    padding: 4px 10px;
    color: var(--side-muted);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}
.fi-main {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.fi-name {
    font-size: 13px;
}
.fi-path {
    font-size: 11px;
    color: var(--side-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.fi.active .fi-path {
    color: var(--side-active-text);
}

.main {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}
.top {
    background: var(--toolbar-bg);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--line);
    padding: 10px 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}
.sw {
    position: relative;
    flex: 1;
    min-width: 220px;
    max-width: 580px;
}
.sw input {
    width: 100%;
    height: 36px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--input-bg);
    outline: none;
    padding: 0 12px 0 36px;
    font-size: 14px;
}
.sw input:focus {
    border-color: var(--side-active-border);
    background: var(--input-focus-bg);
}
.sw span {
    position: absolute;
    left: 11px;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.56;
}

.scope {
    display: inline-flex;
    border: 1px solid var(--line);
    border-radius: 9px;
    overflow: hidden;
}
.scope button {
    height: 32px;
    border: none;
    background: var(--control);
    padding: 0 10px;
    font-size: 12px;
    cursor: pointer;
    color: var(--control-text);
}
.scope button + button {
    border-left: 1px solid var(--line);
}
.scope button.active {
    background: var(--primary-soft);
    color: var(--primary-ink);
}

.tb {
    margin-left: auto;
    display: flex;
    gap: 7px;
    flex-wrap: wrap;
    align-items: center;
}
.theme-switch {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 32px;
    padding: 3px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--theme-shell);
}
.theme-label {
    padding-left: 8px;
    font-size: 12px;
    color: var(--theme-label);
    white-space: nowrap;
}
.theme-picker {
    display: inline-flex;
    gap: 4px;
    padding: 2px;
    border-radius: 999px;
    background: var(--theme-track);
}
.theme-btn {
    height: 24px;
    border: none;
    border-radius: 999px;
    background: transparent;
    color: var(--muted);
    padding: 0 10px;
    font-size: 12px;
    cursor: pointer;
    transition:
        background 0.16s ease,
        color 0.16s ease,
        box-shadow 0.16s ease,
        transform 0.16s ease;
}
.theme-btn:hover,
.theme-btn:focus-visible {
    color: var(--text);
    outline: none;
}
.theme-btn.active {
    background: var(--theme-active-bg);
    color: var(--theme-active-text);
    box-shadow: var(--theme-active-shadow);
}

.btn,
.tab,
.load-more {
    height: 32px;
    border: 1px solid var(--line);
    border-radius: 9px;
    background: var(--control);
    color: var(--control-text);
    padding: 0 11px;
    font-size: 13px;
    cursor: pointer;
}
.btn:hover,
.btn:focus-visible,
.tab:hover,
.tab:focus-visible,
.load-more:hover,
.load-more:focus-visible {
    background: var(--control-hover);
    outline: none;
}
.btn:disabled,
.load-more:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}
.btn:disabled:hover,
.load-more:disabled:hover {
    background: var(--control);
}
.btn.primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}
.btn.primary:hover,
.btn.primary:focus-visible {
    background: var(--primary-strong);
    border-color: var(--primary-strong);
}
.btn.danger {
    background: var(--danger);
    border-color: var(--danger);
    color: #fff;
}
.btn.danger:hover,
.btn.danger:focus-visible {
    background: var(--danger-strong);
    border-color: var(--danger-strong);
}
.icon-btn {
    width: 32px;
    padding: 0;
}
.nav-toggle {
    display: none;
}

.tabs {
    background: var(--tabs-bg);
    border-bottom: 1px solid var(--line);
    padding: 8px 14px;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.tab {
    border-radius: 999px;
}
.tab.active {
    border-color: var(--side-active-border);
    background: var(--primary-tint);
    color: var(--primary-ink-strong);
}

.content {
    flex: 1;
    overflow: auto;
    padding: 14px;
}
.panel {
    min-height: 100%;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 14px;
}

.quick,
.sg {
    display: grid;
    gap: 10px;
    margin-bottom: 12px;
}
.quick {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.sg {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.qc,
.sc {
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--panel-soft);
}
.qc {
    padding: 10px;
}
.sc {
    padding: 10px;
    text-align: left;
    cursor: pointer;
}
.sc:hover,
.sc:focus-visible {
    border-color: var(--side-active-border);
    transform: translateY(-1px);
    outline: none;
}
.qt,
.st {
    font-size: 14px;
    font-weight: 600;
}
.qt {
    margin-bottom: 8px;
}
.sct {
    margin-top: 2px;
    font-size: 12px;
    color: var(--muted);
}
.search-path {
    margin-top: 4px;
    font-size: 12px;
    color: var(--muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.ql {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.ql a {
    max-width: 180px;
    border: 1px solid var(--line);
    background: var(--chip-bg);
    border-radius: 999px;
    padding: 4px 9px;
    font-size: 12px;
    color: var(--chip-text);
    text-decoration: none;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.ql a:hover,
.ql a:focus-visible {
    border-color: var(--side-active-border);
    background: var(--chip-hover);
    outline: none;
}

.bread {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    margin-bottom: 10px;
    color: var(--muted);
    font-size: 13px;
}
.bread a {
    color: var(--primary);
    text-decoration: none;
}
.bread a:hover,
.bread a:focus-visible {
    text-decoration: underline;
    outline: none;
}
.hr {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 11px;
    flex-wrap: wrap;
}
.hr > * {
    min-width: 0;
}
.hr h2 {
    font-size: 18px;
}
.meta,
.load-state {
    font-size: 13px;
    color: var(--muted);
}
.meta {
    text-align: right;
    white-space: normal;
    overflow-wrap: anywhere;
}

.list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.it {
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--item-bg);
    padding: 10px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}
.bi {
    width: 34px;
    height: 34px;
    flex: 0 0 34px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--badge-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.bi-fallback {
    font-size: 12px;
    font-weight: 700;
    color: var(--theme-label);
}
.bi-img {
    width: 18px;
    height: 18px;
    object-fit: contain;
}
.bi.loaded .bi-fallback {
    display: none;
}
.im {
    flex: 1;
    min-width: 0;
}
.tt {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    text-decoration: none;
    display: inline-block;
    max-width: 100%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.tt:hover,
.tt:focus-visible {
    color: var(--primary-strong);
    text-decoration: underline;
    outline: none;
}
.uu,
.ff {
    margin-top: 3px;
    font-size: 12px;
    color: var(--muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.ff {
    color: var(--control-text);
}
.ia {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}
.ib {
    width: 28px;
    height: 28px;
    border: 1px solid var(--line);
    border-radius: 7px;
    background: var(--control);
    color: var(--control-text);
    cursor: pointer;
}
.ib:hover,
.ib:focus-visible {
    background: var(--control-hover);
    outline: none;
}
.ib.star.on {
    color: #b45309;
    border-color: #fcd34d;
    background: #fffbeb;
}

.list-foot {
    display: flex;
    justify-content: center;
    padding-top: 8px;
}
.empty {
    padding: 28px 8px;
    text-align: center;
    color: var(--muted);
    font-size: 14px;
}

.mask {
    position: fixed;
    inset: 0;
    background: rgba(2, 6, 23, 0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
}
.modal {
    width: min(520px, calc(100vw - 24px));
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--panel);
    box-shadow: var(--modal-shadow);
}
.mh {
    border-bottom: 1px solid var(--line);
    padding: 12px 14px;
    font-size: 16px;
    font-weight: 700;
}
.mb {
    padding: 12px 14px 4px;
}
.fd {
    margin-bottom: 10px;
}
.fd label {
    display: block;
    margin-bottom: 5px;
    font-size: 13px;
    color: var(--control-text);
}
.fd input,
.fd select {
    width: 100%;
    height: 36px;
    border: 1px solid var(--line);
    border-radius: 8px;
    outline: none;
    padding: 0 10px;
    background: var(--input-bg);
    color: var(--text);
}
.fd input:focus,
.fd select:focus {
    border-color: var(--side-active-border);
}
.fd-search {
    margin-bottom: 8px;
}
.fd-meta {
    margin-top: 6px;
    font-size: 12px;
    color: var(--muted);
}
.fd-hint {
    margin-top: 6px;
    font-size: 12px;
    line-height: 1.45;
    color: var(--muted);
}
.mf {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 0 14px 14px;
}

.toast {
    position: fixed;
    left: 50%;
    bottom: 20px;
    transform: translateX(-50%);
    border-radius: 10px;
    color: #fff;
    background: var(--toast-bg);
    padding: 8px 12px;
    font-size: 13px;
    display: none;
    align-items: center;
    gap: 10px;
    z-index: 110;
}
.ta {
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 999px;
    background: transparent;
    color: #fff;
    font-size: 12px;
    height: 24px;
    padding: 0 9px;
    cursor: pointer;
}

@media (max-width: 980px) {
    .tb {
        margin-left: 0;
    }
}

@media (max-width: 900px) {
    body {
        overflow: auto;
    }
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        width: min(84vw, 320px);
        min-width: 0;
        transform: translateX(-100%);
        transition: transform 0.18s ease;
        box-shadow: var(--sidebar-shadow);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .nav-toggle {
        display: inline-flex;
    }
    .main {
        width: 100%;
    }
    .content {
        padding: 10px;
    }
    .panel {
        padding: 12px;
    }
}

@media (max-width: 640px) {
    .top {
        padding: 10px;
        position: sticky;
        top: 0;
        z-index: 25;
    }
    .tabs {
        padding: 8px 10px;
    }
    .scope,
    .tb,
    .sw {
        width: 100%;
        max-width: none;
    }
    .theme-switch {
        width: 100%;
        min-width: 0;
        justify-content: flex-start;
        flex-wrap: wrap;
        border-radius: 14px;
    }
    .theme-label {
        width: 100%;
        padding: 2px 8px 0;
    }
    .theme-picker {
        display: flex;
        width: 100%;
        min-width: 0;
    }
    .theme-btn {
        flex: 1 1 0;
        min-width: 0;
        padding: 0 8px;
    }
    .quick,
    .sg {
        grid-template-columns: 1fr;
    }
    .hr {
        align-items: flex-start;
    }
    .meta {
        width: 100%;
        text-align: left;
    }
    .it {
        flex-direction: row;
    }
    .ia {
        align-self: auto;
    }
}

/* ===== 回收站 / 快照回滚弹窗 ===== */
.dlg-head {
    margin-bottom: 12px;
    padding: 10px 12px;
    border-radius: 10px;
    background: var(--panel-soft);
    border: 1px solid var(--line);
    color: var(--muted);
    font-size: 12.5px;
    line-height: 1.6;
}
.dlg-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 46vh;
    overflow: auto;
    padding-right: 2px;
}
.dlg-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--panel);
}
.dlg-row:hover {
    border-color: var(--primary);
}
.dlg-info {
    flex: 1 1 auto;
    min-width: 0;
}
.dlg-name {
    font-size: 13.5px;
    font-weight: 600;
    color: var(--text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.dlg-meta {
    margin-top: 3px;
    font-size: 12px;
    color: var(--muted);
}
.dlg-actions {
    display: flex;
    gap: 6px;
    flex: 0 0 auto;
}
.dlg-actions .btn {
    padding: 5px 10px;
    font-size: 12px;
}
.dlg-foot {
    margin-top: 12px;
    width: 100%;
}
.mb .empty {
    padding: 18px 0;
    text-align: center;
    color: var(--muted);
    font-size: 13px;
}

/* ===== 死链检测 ===== */
.lc-bar {
    height: 6px;
    margin-bottom: 12px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--panel-soft);
    overflow: hidden;
}
.lc-fill {
    height: 100%;
    background: var(--primary);
    transition: width 0.3s ease;
}
.lc-tools {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    margin-bottom: 12px;
}
.lc-tools .btn {
    padding: 6px 12px;
    font-size: 12.5px;
}
.lc-select {
    padding: 6px 8px;
    font-size: 12.5px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
    color: var(--text);
}

/* ===== 赛博朋克主题 ===== */
body[data-theme="cyber"] {
    --bg: #0a0e1a;
    --bg-top: #0f1626;
    --bg-glow: rgba(0, 229, 255, 0.12);
    --panel: #121a2e;
    --panel-soft: #16203a;
    --panel-muted: #101829;
    --line: #25324f;
    --text: #e6f1ff;
    --muted: #8696b8;
    --primary: #00e5ff;
    --primary-strong: #22d3ee;
    --primary-soft: #0a3a44;
    --primary-tint: #0e2c3a;
    --primary-ink: #67e8f9;
    --primary-ink-strong: #a5f3fc;
    --danger: #ff4d6d;
    --danger-strong: #f43f5e;
    --side: #070b15;
    --side-elev: #0c1322;
    --side-line: #1c2840;
    --side-text: #aebdd8;
    --side-strong: #f0f7ff;
    --side-muted: #6b7da0;
    --side-card: #0e1626;
    --side-card-border: #243650;
    --side-input: #0c1426;
    --side-input-border: #2a3c5c;
    --side-input-focus: #00e5ff;
    --side-hover: rgba(0, 229, 255, 0.08);
    --side-active: #0c2a38;
    --side-active-text: #67e8f9;
    --side-active-border: #22d3ee;
    --toolbar-bg: rgba(18, 26, 46, 0.82);
    --tabs-bg: rgba(18, 26, 46, 0.78);
    --control: #16203a;
    --control-hover: #1d2c4c;
    --control-text: #c4d3f0;
    --input-bg: #0c1426;
    --input-focus-bg: #101b30;
    --chip-bg: #0e1a30;
    --chip-text: #67e8f9;
    --chip-hover: #0c2c3a;
    --item-bg: #141d33;
    --badge-bg: #0e1828;
    --shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
    --sidebar-shadow: 0 24px 48px rgba(0, 0, 0, 0.6);
    --modal-shadow: 0 24px 50px rgba(0, 0, 0, 0.55);
    --theme-shell: #0f1626;
    --theme-track: #1a2540;
    --theme-label: #8696b8;
    --theme-active-bg: linear-gradient(135deg, #00e5ff, #7c3aed);
    --theme-active-text: #04121a;
    --theme-active-shadow: 0 10px 20px rgba(0, 229, 255, 0.25);
}

/* ===== 书签卡片墙 ===== */
.bm-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
    gap: 14px;
}
.bm-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 8px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: var(--item-bg);
    padding: 16px 14px 12px;
    transition: transform 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease;
}
.bm-card:hover {
    transform: translateY(-3px);
    border-color: var(--primary);
    box-shadow: 0 12px 26px rgba(2, 6, 23, 0.16);
}
.bm-card .bi {
    width: 44px;
    height: 44px;
    flex: 0 0 44px;
    border-radius: 12px;
    margin-bottom: 2px;
}
.bm-card .bi-img {
    width: 24px;
    height: 24px;
}
.bm-card .im {
    width: 100%;
    text-align: center;
}
.bm-card .tt {
    white-space: normal;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    font-size: 14.5px;
}
.bm-card .uu {
    font-size: 11.5px;
    opacity: 0.85;
    max-width: 100%;
}
.bm-card .ff {
    font-size: 11px;
    color: var(--muted);
}
.bm-card .ia {
    margin-top: 2px;
    gap: 8px;
}
.bm-card .ib {
    width: 30px;
    height: 30px;
    border-radius: 8px;
}

/* ===== 管理下拉菜单 ===== */
.manage-wrap {
    position: relative;
}
.manage-menu {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    z-index: 60;
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 168px;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--panel);
    box-shadow: var(--modal-shadow);
    animation: menuIn 0.14s ease;
}
@keyframes menuIn {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}
.manage-menu .btn {
    width: 100%;
    justify-content: center;
    height: 34px;
}

/* ===== 目录树高亮与动画 ===== */
.children {
    animation: treeIn 0.18s ease;
}
@keyframes treeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}
mark.hl {
    background: var(--primary-tint);
    color: var(--primary-ink-strong);
    border-radius: 3px;
    padding: 0 2px;
}
.ti {
    transition: background 0.14s ease;
}
.empty {
    border: 1px dashed var(--line);
    border-radius: 12px;
    background: var(--panel-soft);
}

/* ===== 排序下拉 ===== */
.sort-select {
    height: 36px;
    padding: 0 10px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--input-bg);
    color: var(--text);
    font-size: 13px;
    outline: none;
    cursor: pointer;
}
.sort-select:focus {
    border-color: var(--side-active-border);
}
.sort-select:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

/* ===== 搜索清空按钮 ===== */
.q-clear {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 22px;
    height: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: 50%;
    background: var(--chip-bg);
    color: var(--muted);
    font-size: 12px;
    line-height: 1;
    cursor: pointer;
}
.q-clear:hover,
.q-clear:focus-visible {
    background: var(--chip-hover);
    color: var(--text);
}

/* ===== 外观下拉 ===== */
.theme-wrap {
    position: relative;
}
.theme-menu {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    z-index: 60;
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 124px;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--panel);
    box-shadow: var(--modal-shadow);
    animation: menuIn 0.14s ease;
}

/* ===== 管理菜单分组 ===== */
.manage-menu {
    max-height: 72vh;
    overflow-y: auto;
}
.mm-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.mm-group + .mm-group {
    margin-top: 6px;
    padding-top: 6px;
    border-top: 1px solid var(--line);
}
.mm-title {
    padding: 2px 6px;
    font-size: 11px;
    letter-spacing: 0.04em;
    color: var(--muted);
}

/* ===== 滚动自动加载提示 ===== */
.list-foot .load-state {
    margin: 0;
    padding: 6px 14px;
    border-radius: 999px;
    background: var(--panel-soft);
    color: var(--muted);
    font-size: 13px;
}

/* ===== 快捷键帮助 ===== */
.help {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.help-row {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 14px;
}
.help-row span {
    margin-left: 8px;
    color: var(--muted);
}
.help kbd {
    min-width: 22px;
    padding: 2px 7px;
    border: 1px solid var(--line);
    border-bottom-width: 2px;
    border-radius: 6px;
    background: var(--chip-bg);
    font-family: inherit;
    font-size: 12px;
    text-align: center;
}
.help-tip {
    margin-top: 4px;
    padding: 8px 10px;
    border-radius: 10px;
    background: var(--panel-soft);
    color: var(--muted);
    font-size: 13px;
    line-height: 1.7;
}