/* ============================================================
           设计基调：深灰底 + 白字 + 粉/蓝点缀
           结构参考你提供的 style.txt，配色与动效重新设计
           ============================================================ */

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

        :root {
            /* 深灰层级 */
            --bg-page: #111214;
            --bg-surface: #191b1f;
            --bg-surface-hover: #1f2228;
            --bg-elevated: #23262d;

            /* 边框 */
            --border: #2a2d35;
            --border-light: #353941;

            /* 文字 */
            --text-primary: #f0f2f5;
            --text-secondary: #9aa1ad;
            --text-dim: #666c78;

            /* 辅助色：粉与蓝 */
            --pink: #f472b6;
            --pink-soft: rgba(244, 114, 182, 0.1);
            --pink-border: rgba(244, 114, 182, 0.22);

            --blue: #60a5fa;
            --blue-soft: rgba(96, 165, 250, 0.1);
            --blue-border: rgba(96, 165, 250, 0.22);

            /* 粉蓝渐变 */
            --gradient-accent: linear-gradient(135deg, #f472b6, #60a5fa);

            --radius: 14px;
            --radius-sm: 10px;
            --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        body {
font-family: Roboto, 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
            background-color: var(--bg-page);
            color: var(--text-primary);
            min-height: 100vh;
            display: flex;
            justify-content: center;
            padding: 3rem 1.5rem 4rem;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
            position: relative;
            line-height: 1.6;
        }
        /* 全局链接重置：去下划线、颜色继承、所有状态一致 */
        a,
        a:link,
        a:visited,
        a:hover,
        a:active,
        a:focus {
            text-decoration: none;
            color: inherit;
            outline: none;      /* 可选：去掉 focus 轮廓，但会损失键盘可访问性提示 */
        }

        /* ---------- 背景氛围：极淡的粉蓝网格 + 顶部光晕 ---------- */
        body::before {
            content: '';
            position: fixed;
            inset: 0;
            background-image:
                linear-gradient(rgba(96, 165, 250, 0.016) 1px, transparent 1px),
                linear-gradient(90deg, rgba(244, 114, 182, 0.012) 1px, transparent 1px);
            background-size: 56px 56px;
            mask-image: radial-gradient(ellipse 75% 55% at 50% 25%, #000 25%, transparent 70%);
            -webkit-mask-image: radial-gradient(ellipse 75% 55% at 50% 25%, #000 25%, transparent 70%);
            pointer-events: none;
            z-index: 0;
            animation: gridDrift 28s linear infinite;
        }

        @keyframes gridDrift {
            0%   { background-position: 0 0, 0 0; }
            100% { background-position: 56px 56px, 56px 56px; }
        }

        body::after {
            content: '';
            position: fixed;
            top: -35%;
            left: 50%;
            translate: -50% 0;
            width: 820px;
            height: 640px;
            background: radial-gradient(
                ellipse,
                rgba(96, 165, 250, 0.045) 0%,
                rgba(244, 114, 182, 0.022) 38%,
                transparent 68%
            );
            pointer-events: none;
            z-index: 0;
            animation: haloBreath 7s ease-in-out infinite alternate;
        }

        @keyframes haloBreath {
            0%   { opacity: 0.65; transform: scale(1); }
            100% { opacity: 1; transform: scale(1.08); }
        }

        /* ---------- 主容器 ---------- */
        .container {
            width: 100%;
            max-width: 860px;
            position: relative;
            z-index: 1;
            animation: containerIn 0.75s var(--ease) both;
        }

        @keyframes containerIn {
            from { opacity: 0; transform: translateY(10px); }
            to   { opacity: 1; transform: translateY(0); }
        }

        /* ---------- 头部 ---------- */
        .header {
            margin-bottom: 1.8rem;
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 1rem;
            flex-wrap: wrap;
            gap: 0.75rem;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 0.55rem;
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.07em;
            text-transform: uppercase;
            color: var(--text-dim);
        }

        .brand-mark {
            width: 20px;
            height: 20px;
            border-radius: 6px;
            background: var(--gradient-accent);
            opacity: 0.85;
            position: relative;
            flex-shrink: 0;
        }

        .brand-mark::after {
            content: '';
            position: absolute;
            inset: 5px;
            border-radius: 3px;
            background: var(--bg-page);
        }

        .readonly-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            font-size: 0.68rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-surface);
            border: 1px solid var(--border);
            padding: 0.28rem 0.7rem;
            border-radius: 100px;
        }

        .readonly-badge .lock {
            font-size: 0.7rem;
            opacity: 0.65;
        }

        .header h1 {
            font-size: clamp(1.7rem, 3.8vw, 2.2rem);
            font-weight: 700;
            letter-spacing: -0.025em;
            line-height: 1.2;
            color: #fff;
            margin-bottom: 0.35rem;
        }

        .header-desc {
            font-size: 0.86rem;
            color: var(--text-secondary);
            line-height: 1.55;
        }

        /* ---------- 工具栏 ---------- */
        .toolbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            margin-bottom: 1.4rem;
            padding: 0.8rem 1.05rem;
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            flex-wrap: wrap;
            animation: fadeUp 0.6s 0.1s var(--ease) both;
        }

        @keyframes fadeUp {
            from { opacity: 0; transform: translateY(10px); }
            to   { opacity: 1; transform: translateY(0); }
        }

        .toolbar-left {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.76rem;
            color: var(--text-dim);
        }

        .toolbar-left .count {
            color: var(--text-primary);
            font-weight: 600;
            font-variant-numeric: tabular-nums;
        }

        .filter-chips {
            display: flex;
            gap: 0.35rem;
            flex-wrap: wrap;
        }

        .chip {
            font-size: 0.7rem;
            font-weight: 500;
            padding: 0.28rem 0.72rem;
            border-radius: 100px;
            border: 1px solid var(--border);
            background: transparent;
            color: var(--text-secondary);
            transition:
                border-color 0.3s var(--ease),
                color 0.3s var(--ease),
                background 0.3s var(--ease);
        }

        .chip:hover {
            border-color: var(--border-light);
            color: var(--text-primary);
        }

        .chip.active {
            background: var(--blue-soft);
            border-color: var(--blue-border);
            color: var(--blue);
        }

        /* ---------- 案例列表 ---------- */
        .case-list {
            display: flex;
            flex-direction: column;
            gap: 0.65rem;
            margin-bottom: 2rem;
        }

        /* ---------- 案例卡片 ---------- */
        .case-card {
            position: relative;
            display: flex;
            align-items: flex-start;
            gap: 0.95rem;
            padding: 1.15rem 1.25rem;
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            cursor: pointer;
            transition:
                border-color 0.35s var(--ease),
                background 0.35s var(--ease),
                transform 0.35s var(--ease),
                box-shadow 0.35s var(--ease);
            overflow: hidden;
            animation: cardRise 0.55s var(--ease) both;
        }

        /* 交错入场 */
        .case-card:nth-child(1) { animation-delay: 0.10s; }
        .case-card:nth-child(2) { animation-delay: 0.16s; }
        .case-card:nth-child(3) { animation-delay: 0.22s; }
        .case-card:nth-child(4) { animation-delay: 0.28s; }
        .case-card:nth-child(5) { animation-delay: 0.34s; }
        .case-card:nth-child(6) { animation-delay: 0.40s; }
        .case-card:nth-child(7) { animation-delay: 0.46s; }
        .case-card:nth-child(8) { animation-delay: 0.52s; }

        @keyframes cardRise {
            from { opacity: 0; transform: translateY(16px) scale(0.985); }
            to   { opacity: 1; transform: translateY(0) scale(1); }
        }

        /* 悬停：上浮 + 粉蓝柔光边框 + 背景提亮 */
        .case-card:hover {
            background: var(--bg-surface-hover);
            border-color: rgba(244, 114, 182, 0.28);
            transform: translateY(-3px);
            box-shadow:
                0 0 0 1px rgba(96, 165, 250, 0.06),
                0 10px 30px rgba(0, 0, 0, 0.32),
                0 0 44px rgba(244, 114, 182, 0.06);
        }

        /* 左侧粉蓝渐变指示条 */
        .case-card::before {
            content: '';
            position: absolute;
            left: 0;
            top: 22%;
            height: 56%;
            width: 3px;
            border-radius: 0 3px 3px 0;
            background: var(--gradient-accent);
            opacity: 0;
            transition:
                opacity 0.35s var(--ease),
                height 0.35s var(--ease),
                top 0.35s var(--ease);
        }

        .case-card:hover::before {
            opacity: 0.95;
            height: 68%;
            top: 16%;
        }

        /* 顶部光效扫描 */
        .case-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--blue), var(--pink), transparent);
            opacity: 0;
            transition: opacity 0.2s;
        }

        .case-card:hover::after {
            opacity: 0.55;
            animation: scanEdge 1.9s ease-in-out infinite;
        }

        @keyframes scanEdge {
            0%   { left: -100%; }
            100% { left: 100%; }
        }

        /* 卡片序号 */
        .case-index {
            flex-shrink: 0;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            font-weight: 700;
            font-variant-numeric: tabular-nums;
            color: var(--text-dim);
            background: var(--bg-elevated);
            border: 1px solid var(--border);
            transition:
                color 0.3s var(--ease),
                border-color 0.3s var(--ease),
                background 0.3s var(--ease);
        }

        .case-card:hover .case-index {
            color: #fff;
            border-color: var(--pink-border);
            background: var(--pink-soft);
        }

        /* 卡片主体 */
        .case-body {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
        }

        .case-title-row {
            display: flex;
            align-items: center;
            gap: 0.55rem;
            flex-wrap: wrap;
        }

        .case-title {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text-primary);
            transition: color 0.3s var(--ease);
        }

        .case-card:hover .case-title {
            color: #fff;
        }

        .case-tag {
            font-size: 0.6rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            padding: 0.12rem 0.48rem;
            border-radius: 100px;
            white-space: nowrap;
            transition: background 0.3s var(--ease), border-color 0.3s var(--ease);
        }

        .tag-pink {
            background: var(--pink-soft);
            border: 1px solid var(--pink-border);
            color: var(--pink);
        }

        .tag-blue {
            background: var(--blue-soft);
            border: 1px solid var(--blue-border);
            color: var(--blue);
        }

        .case-card:hover .tag-pink {
            background: rgba(244, 114, 182, 0.17);
        }

        .case-card:hover .tag-blue {
            background: rgba(96, 165, 250, 0.17);
        }

        .case-desc {
            font-size: 0.78rem;
            color: var(--text-secondary);
            line-height: 1.55;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color 0.3s var(--ease);
        }

        .case-card:hover .case-desc {
            color: #aab0ba;
        }

        .case-meta {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            margin-top: 0.1rem;
            font-size: 0.66rem;
            color: var(--text-dim);
            flex-wrap: wrap;
        }

        .case-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 0.22rem;
        }

        .case-meta .meta-icon {
            opacity: 0.55;
            font-size: 0.68rem;
        }

        /* 右侧箭头 */
        .case-arrow {
            flex-shrink: 0;
            align-self: center;
            color: var(--text-dim);
            font-size: 0.9rem;
            transition: color 0.3s var(--ease), transform 0.3s var(--ease);
        }

        .case-card:hover .case-arrow {
            color: var(--blue);
            transform: translateX(3px);
        }

        /* ---------- 分页：图标主导，文字克制 ---------- */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.3rem;
            padding: 1.1rem 0 0.4rem;
            border-top: 1px solid var(--border);
            flex-wrap: wrap;
            animation: fadeUp 0.7s 0.65s var(--ease) both;
        }

        .page-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 36px;
            height: 36px;
            padding: 0 0.55rem;
            border-radius: var(--radius-sm);
            border: 1px solid transparent;
            background: transparent;
            color: var(--text-secondary);
            font-size: 0.8rem;
            font-weight: 500;
            font-variant-numeric: tabular-nums;
            cursor: pointer;
            transition:
                background 0.28s var(--ease),
                color 0.28s var(--ease),
                border-color 0.28s var(--ease),
                box-shadow 0.28s var(--ease),
                transform 0.15s var(--ease);
            user-select: none;
        }

        .page-btn:hover:not(.disabled):not(.active) {
            background: var(--bg-surface-hover);
            color: var(--text-primary);
            border-color: var(--border);
        }

        .page-btn:active:not(.disabled) {
            transform: scale(0.94);
        }

        .page-btn.active {
            background: var(--blue-soft);
            border-color: var(--blue-border);
            color: var(--blue);
            box-shadow: 0 0 14px rgba(96, 165, 250, 0.12);
        }

        .page-btn.disabled {
            opacity: 0.25;
            cursor: not-allowed;
            pointer-events: none;
        }

        /* 图标按钮：« ‹ › » */
        .page-btn.icon-btn {
            font-size: 0.92rem;
            color: var(--text-dim);
            letter-spacing: 0;
        }

        .page-btn.icon-btn:hover:not(.disabled) {
            color: var(--blue);
            border-color: var(--blue-border);
            background: var(--blue-soft);
        }

        .page-ellipsis {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 26px;
            height: 36px;
            color: var(--text-dim);
            font-size: 0.75rem;
            letter-spacing: 0.5px;
            user-select: none;
        }

        .page-info {
            margin-left: 0.6rem;
            font-size: 0.68rem;
            color: var(--text-dim);
            font-variant-numeric: tabular-nums;
            white-space: nowrap;
        }

        /* ---------- 响应式 ---------- */
        @media (max-width: 640px) {
            body { padding: 2rem 1rem 3rem; }

            .toolbar {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.65rem;
            }

            .case-card {
                padding: 1rem 1.05rem;
                gap: 0.75rem;
            }

            .case-index {
                width: 33px;
                height: 33px;
                font-size: 0.64rem;
            }

            .case-title { font-size: 0.86rem; }
            .case-desc  { font-size: 0.74rem; }

            .pagination { gap: 0.18rem; }
            .page-btn   { min-width: 32px; height: 32px; font-size: 0.74rem; }
            .page-info  { display: none; }
        }

        /* 尊重减少动效偏好 */
        @media (prefers-reduced-motion: reduce) {
            *, *::before, *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }

/* ============================================================
   右下角悬浮按钮组（改为右侧垂直居中）
   ============================================================ */
.fab-group {
    position: fixed;
    right: 24px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.fab-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 48px;
    height: 48px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-dim);
    font-size: 0.72rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(0,0,0,.35);
    transition: width .3s var(--ease), border-color .3s var(--ease),
        background .3s var(--ease), color .3s var(--ease),
        transform .2s var(--ease), box-shadow .3s var(--ease);
    overflow: hidden;
    white-space: nowrap;
    position: relative;
}

/* 悬停时向右展开显示文字 */
.fab-btn:hover {
    width: 132px;
    transform: translateX(-4px);
    box-shadow: 0 6px 24px rgba(0,0,0,.45);
}

.fab-btn .fab-icon {
    flex-shrink: 0;
    font-size: 1.05rem;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    transition: width .3s var(--ease);
}

.fab-btn:hover .fab-icon {
    width: 42px;
}

.fab-btn .fab-label {
    opacity: 0;
    width: 0;
    overflow: hidden;
    transition: opacity .25s var(--ease), width .3s var(--ease);
    font-size: 0.78rem;
    letter-spacing: 0.02em;
}

.fab-btn:hover .fab-label {
    opacity: 1;
    width: auto;
    padding-right: 14px;
}

/* 三个按钮的主题色 */
.fab-btn.fab-create {
    color: var(--blue);
    border-color: var(--blue-border);
    background: var(--blue-soft);
}
.fab-btn.fab-create:hover {
    background: rgba(96,165,250,.2);
    border-color: var(--blue);
    color: #fff;
}

.fab-btn.fab-select {
    color: var(--text-dim);
    border-color: var(--border-light);
}
.fab-btn.fab-select:hover {
    background: var(--surface-hover);
    border-color: var(--text-dim);
    color: var(--text);
}

.fab-btn.fab-edit {
    color: var(--pink);
    border-color: var(--pink-border);
    background: var(--pink-soft);
}
.fab-btn.fab-edit:hover {
    background: rgba(244,114,182,.2);
    border-color: var(--pink);
    color: #fff;
}

/* 移动端缩小间距 */
@media (max-width: 640px) {
    .fab-group {
        right: 16px;
        gap: 8px;
    }
    .fab-btn {
        width: 44px;
        height: 44px;
        border-radius: 12px;
    }
    .fab-btn .fab-icon {
        width: 44px;
        height: 44px;
        font-size: 0.95rem;
    }
    .fab-btn:hover {
        width: 120px;
    }
}