/* ========================================
   IT Xiaobai — 后台样式 (灰白大理石高定版)
   设计语言: 白底 / 黑线 / 渐变蓝点缀
   质感: marble + blur balls + gradient lines
   参考: jiejoe.com 交互模式 (pseudo-element hover,
         stroke typography, clip-path reveals)
   ======================================== */

:root {
    --ink: #101114;
    --muted: #6d7280;
    --line: #1a1d24;
    --line-soft: #d8dce4;
    --paper: #ffffff;
    --blue: #0b63ff;
    --blue-soft: #e9f1ff;
    --blue-glow: rgba(11,99,255,.06);
    --success: #18794e;
    --danger: #c92a2a;

    --shadow-sm: 0 1px 2px rgba(14,30,64,.06), 0 2px 6px rgba(14,30,64,.04);
    --shadow-md: 0 4px 16px rgba(14,30,64,.07), 0 1px 4px rgba(14,30,64,.04);
    --shadow-lg: 0 12px 40px rgba(14,30,64,.09), 0 2px 8px rgba(14,30,64,.04);

    --radius: 2px;
    --sidebar-width: 220px;
    --header-height: 56px;
    --td-brand-color: #0b63ff;
    --td-brand-color-hover: #2a78ff;
    --td-brand-color-active: #004fd6;
    --td-brand-color-focus: rgba(11,99,255,.18);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--ink);
    background:
        /* 网格点阵 */
        linear-gradient(0deg, transparent 2.9px, rgba(16,17,20,.02) 3px),
        linear-gradient(90deg, transparent 2.9px, rgba(16,17,20,.02) 3px),
        /* SVG 大理石噪点 */
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='400' height='400'%3E%3Cfilter id='m'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.012 0.018' numOctaves='4' seed='3'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3CfeComponentTransfer%3E%3CfeFuncA type='linear' slope='0.04'/%3E%3C/feComponentTransfer%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23m)'/%3E%3C/svg%3E"),
        radial-gradient(ellipse 600px 400px at 30% 25%, var(--blue-glow) 0%, transparent 60%),
        linear-gradient(to bottom, #f8f9fb, #f0f2f5);
    background-size: 3rem 3rem, 3rem 3rem, auto, auto, auto;
    background-attachment: fixed;
    letter-spacing: .01em;
}

/* ========================================
   登录页 — 多层大理石 + 环境光球 + 渐变线
   ======================================== */
.login-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    position: relative;
    background:
        /* 网格点阵 */
        linear-gradient(0deg, transparent 2.9px, rgba(16,17,20,.025) 3px),
        linear-gradient(90deg, transparent 2.9px, rgba(16,17,20,.025) 3px),
        /* 双层大理石 SVG */
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='400' height='400'%3E%3Cfilter id='m2'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.01 0.016' numOctaves='5' seed='9'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3CfeComponentTransfer%3E%3CfeFuncA type='linear' slope='0.06'/%3E%3C/feComponentTransfer%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23m2)'/%3E%3C/svg%3E"),
        radial-gradient(ellipse 900px 500px at 50% 40%, rgba(11,99,255,.06) 0%, transparent 60%),
        radial-gradient(ellipse 600px 400px at 80% 70%, rgba(180,160,120,.04) 0%, transparent 50%),
        linear-gradient(160deg, #fdfdfd 0%, #f0f3f7 50%, #fafbfc 100%);
    background-size: 3rem 3rem, 3rem 3rem, auto, auto, auto, auto;
    background-attachment: fixed;
}

/* 登录页环境光球 */
.login-blur-ball {
    position: fixed;
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
    filter: blur(90px);
    opacity: .3;
}
.login-blur-ball.top {
    top: -140px; left: 50%;
    width: 400px; height: 400px;
    margin-left: -200px;
    background: radial-gradient(circle, rgba(11,99,255,.2) 0%, transparent 70%);
    animation: loginBallTop 16s ease-in-out infinite;
}
.login-blur-ball.bottom {
    bottom: -120px; right: -80px;
    width: 320px; height: 320px;
    background: radial-gradient(circle, rgba(11,99,255,.14) 0%, transparent 70%);
    animation: loginBallBottom 18s ease-in-out infinite reverse;
}
@keyframes loginBallTop {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33%      { transform: translate(25px, -15px) scale(1.06); }
    66%      { transform: translate(-18px, 10px) scale(.95); }
}
@keyframes loginBallBottom {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50%      { transform: translate(-20px, -12px) scale(1.05); }
}

/* 登录页渐变装饰线 */
.login-gradient-lines {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: .13;
}
.login-gradient-lines span {
    position: absolute;
    display: block;
    height: 1px;
    width: 150%;
    left: -25%;
    background: linear-gradient(90deg, transparent 0%, var(--blue) 30%, rgba(11,99,255,.6) 50%, var(--blue) 70%, transparent 100%);
    background-size: 200% 100%;
    animation: loginLineSweep 15s linear infinite;
}
.login-gradient-lines span:nth-child(1) { top: 20%; animation-delay: 0s; }
.login-gradient-lines span:nth-child(2) { top: 50%; animation-delay: -5s; width: 130%; }
.login-gradient-lines span:nth-child(3) { top: 75%; animation-delay: -10s; opacity: .5; }
@keyframes loginLineSweep {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.login-card {
    position: relative;
    z-index: 1;
    width: 400px;
    background: linear-gradient(180deg, #ffffff 0%, #fdfdfe 100%);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-lg);
    padding: 42px 40px;
    animation: cardReveal .6s cubic-bezier(.25,.8,.25,1.2) both;
}
@keyframes cardReveal {
    from {
        opacity: 0;
        transform: translateY(20px);
        clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
    }
    to {
        opacity: 1;
        transform: translateY(0);
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }
}
.login-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--blue) 50%, transparent 100%);
    opacity: .4;
}

.login-card h2 {
    text-align: center;
    margin-bottom: 32px;
    font-size: 22px;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: .03em;
    position: relative;
    display: inline-block;
    width: 100%;
}
.login-card h2::after {
    content: attr(data-text);
    position: absolute;
    left: 50%; top: 0;
    transform: translate(-50%, -1px);
    width: 100%;
    color: transparent;
    -webkit-text-stroke: 1px var(--blue);
    pointer-events: none;
    opacity: .2;
}

/* ========================================
   管理外壳
   ======================================== */
.admin-shell {
    display: flex;
    min-height: 100vh;
}

/* ── 侧边栏: 深色大理石 + 蓝色高光线 ── */
.admin-sidebar {
    width: var(--sidebar-width);
    background:
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='m3'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.015 0.02' numOctaves='3' seed='11'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3CfeComponentTransfer%3E%3CfeFuncA type='linear' slope='0.07'/%3E%3C/feComponentTransfer%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23m3)'/%3E%3C/svg%3E"),
        linear-gradient(180deg, #1a1d24 0%, #121418 50%, #1a1e25 100%);
    color: #bfcbd9;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    border-right: 1px solid rgba(255,255,255,.06);
    position: relative;
}
.admin-sidebar::after {
    content: "";
    position: absolute;
    right: 0; top: 0; bottom: 0;
    width: 1px;
    background: linear-gradient(180deg, transparent 0%, rgba(11,99,255,.3) 50%, transparent 100%);
    pointer-events: none;
}

.admin-sidebar .sidebar-header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    letter-spacing: .05em;
    border-bottom: 1px solid rgba(255,255,255,.08);
    background: rgba(255,255,255,.02);
    position: relative;
}
.admin-sidebar .sidebar-header::after {
    content: "";
    position: absolute;
    bottom: 0; left: 20%; right: 20%;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(11,99,255,.4) 50%, transparent 100%);
}

.sidebar-menu {
    flex: 1;
    overflow-y: auto;
    padding: 8px 0;
}

.sidebar-menu-item {
    display: block;
    width: 100%;
    padding: 12px 24px;
    border: none;
    background: transparent;
    color: #a4b0c0;
    text-align: left;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: .02em;
    font-family: inherit;
    position: relative;
    overflow: hidden;
    transition: all .25s ease;
}
.sidebar-menu-item::before {
    content: "";
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 3px;
    background: var(--blue);
    transform: scaleY(0);
    transition: transform .3s cubic-bezier(.25,.8,.25,1.2);
}
.sidebar-menu-item::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(11,99,255,.12) 0%, transparent 60%);
    transform: translateX(-100%);
    transition: transform .35s ease;
}
.sidebar-menu-item:hover {
    background: rgba(255,255,255,.04);
    color: #e0e5ec;
}
.sidebar-menu-item:hover::after {
    transform: translateX(0);
}
.sidebar-menu-item.active {
    background: linear-gradient(90deg, rgba(11,99,255,.18) 0%, rgba(11,99,255,.04) 100%);
    color: #fff;
}
.sidebar-menu-item.active::before {
    transform: scaleY(1);
}

/* ── 主内容区 ── */
.admin-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.admin-header {
    height: var(--header-height);
    background: linear-gradient(180deg, #ffffff 0%, #fdfdfe 100%);
    border-bottom: 1px solid var(--line-soft);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    box-shadow: 0 1px 0 rgba(255,255,255,.8) inset, 0 1px 8px rgba(14,30,64,.04);
}
.admin-header > span {
    font-weight: 700;
    font-size: 15px;
    letter-spacing: .03em;
    color: var(--ink);
}
.admin-header .user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    font-weight: 600;
}

.admin-content {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    background: radial-gradient(ellipse 500px 300px at 70% 20%, var(--blue-glow) 0%, transparent 60%);
}

.dashboard-panel {
    margin-top: 18px;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 14px;
}

.stat-card {
    padding: 18px;
    background: rgba(255,255,255,.86);
    border: 1px solid var(--line-soft);
    box-shadow: var(--shadow-sm);
}

.stat-card span {
    display: block;
    color: var(--muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .04em;
}

.stat-card strong {
    display: block;
    margin-top: 8px;
    color: var(--ink);
    font-size: 28px;
    line-height: 1;
}

.admin-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
    padding: 18px 20px;
    background: #fff;
    border: 1px solid var(--line-soft);
    box-shadow: var(--shadow-sm);
}
.admin-toolbar h2 {
    font-size: 20px;
    margin-bottom: 4px;
    color: var(--ink);
}
.admin-toolbar p {
    color: var(--muted);
    font-size: 13px;
}
.toolbar-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    flex-wrap: wrap;
}

.plain-admin-form,
.plain-editor {
    display: grid;
    gap: 14px;
}
.plain-admin-form input,
.plain-input,
.plain-editor textarea {
    width: 100%;
    border: 1px solid var(--line-soft);
    border-radius: var(--radius);
    background: #fff;
    color: var(--ink);
    padding: 10px 12px;
    font: inherit;
}
.plain-editor textarea {
    min-height: 48px;
    resize: vertical;
}
.plain-editor input,
.plain-editor select,
.node-editor input,
.node-editor select,
.node-editor textarea {
    width: 100%;
    border: 1px solid var(--line-soft);
    border-radius: var(--radius);
    background: #fff;
    color: var(--ink);
    padding: 10px 12px;
    font: inherit;
}
.plain-editor label {
    display: grid;
    gap: 6px;
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
}
.plain-primary,
.plain-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    padding: 0 16px;
    border-radius: var(--radius);
    border: 1px solid var(--blue);
    background: var(--blue);
    color: #fff;
    font-weight: 800;
    text-decoration: none;
    cursor: pointer;
}
.tdesign-admin-submit,
.tdesign-admin-button,
.tdesign-admin-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    padding: 0 16px;
    border: 1px solid var(--td-brand-color);
    border-radius: var(--radius);
    background: var(--td-brand-color);
    color: #fff;
    font: inherit;
    font-weight: 800;
    text-decoration: none;
    cursor: pointer;
}
.tdesign-admin-link {
    background: #fff;
    color: var(--ink);
    border-color: var(--line-soft);
}
.tdesign-admin-button.outline {
    background: #fff;
    color: var(--ink);
    border-color: var(--line-soft);
}
.tdesign-admin-button.primary {
    background: var(--td-brand-color);
    color: #fff;
    border-color: var(--td-brand-color);
}
.plain-secondary {
    border-color: var(--line-soft);
    background: #fff;
    color: var(--ink);
}
.plain-link {
    border: none;
    background: transparent;
    color: var(--blue);
    cursor: pointer;
    font-weight: 800;
    margin-right: 8px;
}
.plain-link.danger { color: var(--danger); }
.plain-link.success { color: var(--success); }
.plain-table-wrap {
    overflow-x: auto;
    background: #fff;
    border: 1px solid var(--line-soft);
    box-shadow: var(--shadow-sm);
}
.plain-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 760px;
}
.plain-table th,
.plain-table td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--line-soft);
    text-align: left;
    vertical-align: top;
    font-size: 13px;
}
.plain-table th {
    color: var(--ink);
    background: #f5f6f8;
    border-bottom: 2px solid var(--line);
}
.plain-section-title {
    margin: 22px 0 12px;
}
.plain-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: grid;
    place-items: center;
    padding: 18px;
    background: rgba(16,17,20,.42);
}
.plain-editor {
    position: relative;
    width: min(620px, 100%);
    max-height: 86vh;
    overflow: auto;
    padding: 24px;
    background: #fff;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-lg);
}
.plain-editor.node-editor {
    width: min(980px, 100%);
    gap: 18px;
    border-radius: 22px;
}
.node-toolbar .toolbar-actions { max-width: 760px; }
.node-admin-help {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 18px;
    align-items: stretch;
    margin-bottom: 18px;
    padding: 22px;
    border: 1px solid rgba(0,82,217,.16);
    border-radius: 18px;
    background: linear-gradient(135deg, #f2f6ff 0%, #fff 72%);
    box-shadow: var(--shadow-sm);
}
.node-admin-help span,
.node-editor-head span {
    display: inline-flex;
    width: fit-content;
    padding: 4px 10px;
    border-radius: 999px;
    background: #e8f1ff;
    color: var(--td-brand-color);
    font-size: 12px;
    font-weight: 800;
}
.node-admin-help h3,
.node-editor-head h3 { margin: 10px 0 8px; font-size: 24px; color: var(--ink); }
.node-admin-help p,
.node-editor-head p { color: var(--muted); line-height: 1.7; }
.node-admin-stats {
    display: grid;
    grid-template-columns: repeat(3, auto);
    gap: 4px 14px;
    align-content: center;
    min-width: 260px;
    padding: 16px;
    border-radius: 16px;
    background: #fff;
    border: 1px solid var(--line-soft);
}
.node-admin-stats strong { font-size: 28px; color: var(--td-brand-color); }
.node-admin-stats span { color: var(--muted); font-size: 12px; }
.node-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
}
.node-admin-card,
.node-empty-card {
    border: 1px solid var(--line-soft);
    border-radius: 18px;
    background: #fff;
    box-shadow: var(--shadow-sm);
}
.node-admin-card { display: grid; gap: 14px; padding: 18px; cursor: grab; transition: transform .18s ease, opacity .18s ease, box-shadow .18s ease; }
.node-admin-card.dragging { opacity: .58; transform: scale(.985); box-shadow: var(--shadow-lg); }
.node-empty-card { padding: 40px; color: var(--muted); text-align: center; }
.node-card-drag {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 28px;
    border: 1px dashed rgba(0,82,217,.35);
    border-radius: 999px;
    background: #f5f8ff;
    color: var(--td-brand-color);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .08em;
}
.node-card-head { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; }
.node-card-head h3 { margin: 8px 0 0; font-size: 18px; color: var(--ink); }
.node-admin-card p { color: var(--muted); line-height: 1.65; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.node-branch-pill {
    display: inline-flex;
    padding: 3px 9px;
    border-radius: 999px;
    background: #f2f3ff;
    color: #3f4cc8;
    font-size: 12px;
    font-weight: 800;
}
.node-card-meta { display: flex; flex-wrap: wrap; gap: 8px; }
.node-card-meta span {
    padding: 4px 8px;
    border-radius: 8px;
    background: #f5f6f8;
    color: var(--muted);
    font-size: 12px;
    font-weight: 700;
}
.node-card-detail {
    display: grid;
    grid-template-columns: 76px 1fr;
    gap: 8px 10px;
    margin: 0;
    color: var(--muted);
    font-size: 13px;
}
.node-card-detail dt { font-weight: 800; color: var(--ink); }
.node-card-detail dd { margin: 0; }
.node-card-actions { display: flex; justify-content: space-between; gap: 12px; align-items: center; padding-top: 4px; border-top: 1px solid var(--line-soft); }
.node-tree-wrap { background: #fff; }
.node-tree-table .node-tree-row { cursor: grab; }
.node-tree-table .node-tree-row.dragging { opacity: .5; }
.node-tree-table .node-tree-row.drag-over td { background: #eef5ff; box-shadow: inset 0 0 0 1px rgba(0,82,217,.24); }
.node-tree-name { display: grid; gap: 3px; }
.node-tree-name strong { color: var(--ink); font-size: 14px; }
.node-tree-name small { color: var(--muted); font-size: 12px; }
.node-tree-drag {
    width: fit-content;
    padding: 2px 8px;
    border-radius: 999px;
    border: 1px dashed rgba(0,82,217,.35);
    color: var(--td-brand-color);
    background: #f5f8ff;
    font-size: 11px;
    font-weight: 800;
}
.node-section-title { display: flex; justify-content: space-between; gap: 12px; align-items: center; }
.node-section-title h4 { margin: 0; }
.node-section-title span { color: var(--muted); font-size: 13px; }
.review-diff { display: grid; gap: 6px; min-width: 220px; max-width: 420px; white-space: pre-wrap; word-break: break-word; }
.review-diff del, .review-diff ins { display: block; padding: 8px 10px; border-radius: 4px; text-decoration: none; font-size: 12px; line-height: 1.55; }
.review-diff del { background: rgba(201,42,42,.08); color: #a61e1e; border-left: 3px solid #c92a2a; }
.review-diff ins { background: rgba(24,121,78,.09); color: #146c43; border-left: 3px solid #18794e; }
.review-alert { margin: 12px 0; padding: 11px 13px; border-left: 4px solid var(--success); background: rgba(24,121,78,.08); color: var(--ink); }
.review-alert.danger { border-color: var(--danger); background: rgba(201,42,42,.09); }
.plain-editor.revision-editor { width: min(920px, calc(100vw - 32px)); max-height: 88vh; overflow-y: auto; }
.revision-loading, .revision-empty { padding: 36px 16px; color: var(--muted); text-align: center; }
.revision-list { display: grid; gap: 14px; }
.revision-card { padding: 18px; border: 1px solid var(--line-soft); background: var(--paper); box-shadow: var(--shadow-sm); }
.revision-card > header { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--line-soft); }
.revision-card > header > div { display: grid; gap: 3px; }
.revision-card > header strong { color: var(--ink); font-size: 14px; }
.revision-card > header small { color: var(--muted); }
.revision-version { color: var(--blue); font-size: 11px; font-weight: 800; letter-spacing: .08em; }
.revision-snapshot { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; margin-top: 14px; }
.revision-field { padding: 11px 12px; background: var(--blue-glow); border-left: 2px solid var(--blue); }
.revision-field strong { display: block; margin-bottom: 4px; color: var(--ink); font-size: 12px; }
.revision-field p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.6; white-space: pre-wrap; max-height: 130px; overflow: auto; }
.revision-card details { margin-top: 12px; color: var(--muted); font-size: 12px; }
.revision-card summary { cursor: pointer; }
.revision-card pre { overflow: auto; max-height: 280px; padding: 12px; background: var(--blue-soft); color: var(--ink); white-space: pre-wrap; word-break: break-word; }
@media (max-width: 640px) { .revision-snapshot { grid-template-columns: 1fr; } .revision-card > header { flex-direction: column; } }
.node-editor-head { padding-right: 38px; }
.node-form-section {
    display: grid;
    gap: 12px;
    padding: 16px;
    border: 1px solid var(--line-soft);
    border-radius: 16px;
    background: #fbfcff;
}
.node-form-section h4 { margin: 0; color: var(--ink); }
.node-form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.node-editor-actions { display: flex; justify-content: flex-end; gap: 10px; position: sticky; bottom: -24px; padding-top: 12px; background: linear-gradient(180deg, rgba(255,255,255,.72), #fff 45%); }
.settings-panel {
    display: grid;
    gap: 18px;
}
.settings-section {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 22px;
    padding: 22px;
    border: 1px solid var(--line-soft);
    border-radius: 18px;
    background: #fff;
    box-shadow: var(--shadow-sm);
}
.settings-section span {
    display: inline-flex;
    width: fit-content;
    padding: 4px 10px;
    border-radius: 999px;
    background: #e8f1ff;
    color: var(--td-brand-color);
    font-size: 12px;
    font-weight: 800;
}
.settings-section h3 { margin: 10px 0 8px; color: var(--ink); }
.settings-section p { color: var(--muted); line-height: 1.7; }
.settings-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}
.settings-grid label {
    display: grid;
    gap: 6px;
    color: var(--muted);
    font-size: 13px;
    font-weight: 800;
}
.settings-grid .wide { grid-column: 1 / -1; }
.settings-grid input,
.settings-grid select,
.settings-grid textarea {
    width: 100%;
    border: 1px solid var(--line-soft);
    border-radius: var(--radius);
    background: #fff;
    color: var(--ink);
    padding: 10px 12px;
    font: inherit;
}
.settings-grid textarea { resize: vertical; }
.settings-model-actions {
    display: grid;
    gap: 8px;
    align-content: end;
}
.settings-model-actions span {
    padding: 0;
    border-radius: 0;
    background: transparent;
    color: var(--muted);
    font-size: 12px;
    font-weight: 700;
    line-height: 1.5;
}
.ai-config-card {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}
.ai-config-step,
.ai-model-picker label {
    display: grid;
    gap: 8px;
    padding: 14px;
    border: 1px solid var(--line-soft);
    border-radius: 14px;
    background: #fbfcff;
    color: var(--muted);
    font-size: 13px;
}
.ai-config-step strong,
.ai-model-picker strong { color: var(--ink); font-size: 14px; }
.ai-config-step small,
.ai-model-picker small { color: var(--muted); line-height: 1.55; }
.ai-config-step.wide,
.ai-model-picker.wide { grid-column: 1 / -1; }
.ai-model-row {
    display: grid;
    grid-template-columns: minmax(180px, 1fr) minmax(180px, 1fr) auto;
    gap: 8px;
    align-items: center;
}
.settings-actions { display: flex; justify-content: flex-end; }
.root-guide-panel {
    display: grid;
    gap: 18px;
}
.root-guide-hero {
    grid-template-columns: minmax(0, 1fr) auto;
}
.root-guide-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}
.root-guide-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}
.root-guide-section {
    margin: 0;
}
.root-guide-code,
.root-guide-branches {
    display: grid;
    gap: 10px;
}
.root-guide-code code,
.root-guide-branch code {
    display: block;
    overflow-x: auto;
    padding: 10px 12px;
    border: 1px solid var(--line-soft);
    border-radius: 10px;
    background: #f7f9fc;
    color: var(--ink);
    font: 13px/1.55 Consolas, "SFMono-Regular", Menlo, monospace;
}
.root-guide-branch {
    display: grid;
    grid-template-columns: minmax(180px, .4fr) minmax(0, 1fr);
    gap: 10px;
    align-items: center;
    padding: 12px;
    border: 1px solid var(--line-soft);
    border-radius: 12px;
    background: #fbfcff;
}
.root-guide-branch div {
    display: grid;
    gap: 4px;
}
.root-guide-branch strong {
    color: var(--ink);
}
.root-guide-branch span {
    color: var(--muted);
    font-size: 12px;
    font-weight: 700;
}
.root-guide-pre {
    overflow-x: auto;
    margin: 0;
    padding: 16px;
    border: 1px solid var(--line-soft);
    border-radius: 12px;
    background: #0f172a;
    color: #e2e8f0;
    font: 13px/1.65 Consolas, "SFMono-Regular", Menlo, monospace;
}
.plain-close {
    position: absolute;
    right: 12px;
    top: 8px;
    border: none;
    background: transparent;
    font-size: 28px;
    cursor: pointer;
}
.admin-toast {
    position: fixed;
    top: 22px;
    left: 50%;
    z-index: 2000;
    transform: translate(-50%, -14px);
    opacity: 0;
    padding: 10px 20px;
    border-radius: var(--radius);
    background: var(--success);
    color: #fff;
    font-weight: 800;
    transition: .2s ease;
}
.admin-toast.success,
.admin-toast.error {
    opacity: 1;
    transform: translate(-50%, 0);
}
.admin-toast.error { background: var(--danger); }

/* ========================================
   状态标签
   ======================================== */
.status-badge {
    display: inline-block;
    padding: 2px 10px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .02em;
    border: 1px solid transparent;
}
.status-badge.active {
    background: #ecfdf3;
    color: var(--success);
    border-color: #a7f0ba;
}
.status-badge.disabled {
    background: #fff1f2;
    color: var(--danger);
    border-color: #fecaca;
}

/* ========================================
   表格操作
   ======================================== */
.table-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.pagination-bar {
    display: flex;
    justify-content: flex-end;
    margin-top: 16px;
}

/* ========================================
   Element Plus 覆盖 (后台)
   ======================================== */
.el-button {
    position: relative !important;
    border-radius: var(--radius) !important;
    font-weight: 700 !important;
    letter-spacing: .02em !important;
    font-family: inherit !important;
    overflow: hidden !important;
}
.el-button::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(255,255,255,.2) 0%, transparent 100%);
    transform: translateY(100%);
    transition: transform .3s cubic-bezier(.25,.8,.25,1.2);
    pointer-events: none;
}
.el-button:hover::after {
    transform: translateY(0);
}
.el-button:hover {
    transform: translateY(-1px) !important;
    box-shadow: 0 4px 14px rgba(14,30,64,.1) !important;
}
.el-button--primary {
    background: var(--blue) !important;
    border-color: var(--blue) !important;
}
.el-button--primary:hover {
    box-shadow: 0 6px 22px rgba(11,99,255,.3) !important;
}
.el-button--danger {
    background: var(--danger) !important;
    border-color: var(--danger) !important;
}

.el-table {
    border-radius: var(--radius) !important;
    overflow: hidden;
    box-shadow: var(--shadow-sm) !important;
    border: 1px solid var(--line-soft) !important;
}
.el-table th.el-table__cell {
    background: linear-gradient(180deg, #fafbfc 0%, #f5f6f8 100%) !important;
    font-weight: 700 !important;
    color: var(--ink) !important;
    font-size: 13px !important;
    letter-spacing: .02em !important;
    border-bottom: 2px solid var(--line) !important;
}
.el-table td.el-table__cell {
    border-bottom: 1px solid var(--line-soft) !important;
}
.el-table .el-table__row:hover > td {
    background: rgba(11,99,255,.025) !important;
}

.el-input__wrapper {
    border-radius: var(--radius) !important;
    box-shadow: inset 0 1px 3px rgba(14,30,64,.06) !important;
    border: 1px solid var(--line-soft) !important;
    font-family: inherit !important;
    transition: box-shadow .25s ease, border-color .25s ease !important;
}
.el-input__wrapper:hover {
    box-shadow: inset 0 1px 3px rgba(14,30,64,.08), 0 0 0 1px rgba(11,99,255,.12) !important;
}
.el-input__wrapper.is-focus {
    box-shadow: 0 0 0 2px rgba(11,99,255,.18) !important;
    border-color: var(--blue) !important;
}

.el-select__wrapper {
    border-radius: var(--radius) !important;
}

.el-dialog {
    border-radius: var(--radius) !important;
    box-shadow: var(--shadow-lg) !important;
    border: 1px solid var(--line) !important;
    animation: adminDialogIn .35s cubic-bezier(.25,.8,.25,1.2) both !important;
}
@keyframes adminDialogIn {
    from {
        opacity: 0;
        transform: translateY(16px) scale(.97);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}
.el-dialog__title {
    font-weight: 700 !important;
    letter-spacing: .02em !important;
}

.el-message-box {
    border-radius: var(--radius) !important;
    border: 1px solid var(--line) !important;
    box-shadow: var(--shadow-lg) !important;
}

.el-pagination__button, .el-pager li {
    border-radius: var(--radius) !important;
}

.el-dropdown-menu {
    border-radius: var(--radius) !important;
    border: 1px solid var(--line) !important;
    box-shadow: var(--shadow-md) !important;
    padding: 4px 0 !important;
}

/* ========================================
   滚动条
   ======================================== */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: rgba(16,17,20,.12);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(16,17,20,.2);
}
.sidebar-menu::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,.1);
    border-radius: 3px;
}
.sidebar-menu::-webkit-scrollbar-thumb:hover {
    background: rgba(255,255,255,.18);
}

/* ========================================
   响应式
   ======================================== */
@media (max-width: 768px) {
    .login-card {
        width: 90%;
        padding: 32px 24px;
    }
    .admin-sidebar {
        width: 180px;
    }
    .admin-header {
        padding: 0 16px;
    }
    .admin-content {
        padding: 12px;
    }
    .admin-toolbar {
        align-items: flex-start;
        flex-direction: column;
    }
    .toolbar-actions,
    .toolbar-actions .plain-input,
    .toolbar-actions .tdesign-admin-button { width: 100%; }
    .node-admin-help { grid-template-columns: 1fr; }
    .node-admin-stats { min-width: 0; grid-template-columns: repeat(3, 1fr); }
    .node-card-grid { grid-template-columns: 1fr; }
    .node-form-grid { grid-template-columns: 1fr; }
    .settings-section,
    .settings-grid,
    .root-guide-hero,
    .root-guide-grid,
    .root-guide-branch,
    .ai-config-card,
    .ai-model-row { grid-template-columns: 1fr; }
    .plain-editor.node-editor { padding: 18px; }
}