/* ========== 全局样式 ========== */
.mfa * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.mfa {
    --primary: #4f46e5;
    --primary-light: #818cf8;
    --primary-dark: #3730a3;
    --secondary: #06b6d4;
    --accent: #f59e0b;
    --success: #10b981;
    --danger: #ef4444;
    --bg: #f0f4ff;
    --card-bg: #ffffff;
    --text: #1e293b;
    --text-light: #64748b;
    --border: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(79,70,229,0.08), 0 2px 4px -2px rgba(0,0,0,0.06);
    --shadow-lg: 0 20px 25px -5px rgba(79,70,229,0.1), 0 8px 10px -6px rgba(79,70,229,0.05);
    --shadow-card: 0 8px 30px -8px rgba(79,70,229,0.12), 0 2px 8px -2px rgba(0,0,0,0.04);
    --radius: 16px;
    --radius-sm: 10px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --grad-primary: linear-gradient(135deg, #6366f1 0%, #4f46e5 50%, #3730a3 100%);
    --grad-card: linear-gradient(135deg, #ffffff 0%, #fafbff 100%);
    --grad-header: linear-gradient(135deg, #eef2ff 0%, #e0e7ff 50%, #dbeafe 100%);
}

.mfa {
    font-family: 'Segoe UI', 'Microsoft YaHei', 'PingFang SC', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
}

/* ========== 背景动画 ========== */
.mfa .background-shapes {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.mfa .bg-shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.03;
    animation: floatShape 20s infinite ease-in-out;
}

.mfa .bg-shape:nth-child(1) {
    width: 400px;
    height: 400px;
    background: var(--primary);
    top: -100px;
    left: -100px;
    animation-delay: 0s;
}

.mfa .bg-shape:nth-child(2) {
    width: 300px;
    height: 300px;
    background: var(--secondary);
    top: 60%;
    right: -80px;
    animation-delay: -5s;
}

.mfa .bg-shape:nth-child(3) {
    width: 350px;
    height: 350px;
    background: var(--accent);
    bottom: -120px;
    left: 30%;
    animation-delay: -10s;
}

.mfa .bg-shape:nth-child(4) {
    width: 250px;
    height: 250px;
    background: var(--success);
    top: 20%;
    right: 40%;
    animation-delay: -15s;
}

@keyframes floatShape {
    0%, 100% { transform: translate(0, 0) scale(1) rotate(0deg); }
    25% { transform: translate(30px, -30px) scale(1.1) rotate(90deg); }
    50% { transform: translate(-20px, 20px) scale(0.9) rotate(180deg); }
    75% { transform: translate(20px, 30px) scale(1.05) rotate(270deg); }
}

/* ========== Header ========== */
.mfa .main-header {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 2rem 1rem 1rem;
    background: var(--grad-primary);
    color: white;
    clip-path: ellipse(120% 100% at 50% 0%);
    padding-bottom: 3rem;
    box-shadow: 0 8px 32px rgba(79,70,229,0.2);
}

.mfa .main-header h1 {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    text-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.mfa .subtitle {
    font-size: 0.95rem;
    opacity: 0.85;
    margin-top: 0.3rem;
}

/* ========== 主布局 ========== */
.mfa .main-container {
    position: relative;
    z-index: 1;
    display: flex;
    gap: 1.5rem;
    max-width: 1400px;
    margin: -1rem auto 2rem;
    padding: 0 1.5rem;
}

/* ========== 侧边栏 ========== */
.mfa .sidebar {
    flex: 0 0 260px;
    position: sticky;
    top: 1rem;
    align-self: flex-start;
    max-height: calc(100vh - 2rem);
    overflow-y: auto;
}

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

.mfa .stage-tab {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    background: var(--card-bg);
    color: var(--text);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow);
    white-space: nowrap;
}
.mfa .stage-tab:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}
.mfa .stage-tab.active {
    background: var(--grad-primary);
    color: white;
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(79,70,229,0.2);
}

.mfa .category-list {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.mfa .category-btn {
    padding: 0.7rem 1rem;
    border: none;
    border-radius: var(--radius-sm);
    background: var(--card-bg);
    color: var(--text);
    font-size: 0.88rem;
    text-align: left;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mfa .category-btn:hover {
    background: #eef2ff;
    transform: translateX(4px);
}

.mfa .category-btn.active {
    background: var(--grad-primary);
    color: white;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(79,70,229,0.15);
}

.mfa .category-btn .icon {
    font-size: 1.1rem;
    flex-shrink: 0;
}

/* ========== 主内容 ========== */
.mfa .content {
    flex: 1;
    min-width: 0;
}

.mfa .category-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.2rem;
    color: var(--primary-dark);
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--primary-light);
    display: inline-block;
}

.mfa .formula-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 1.2rem;
}

/* ========== 公式卡片 ========== */
.mfa .formula-card {
    background: var(--grad-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid rgba(79,70,229,0.08);
}
.mfa .formula-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px -8px rgba(79,70,229,0.18), 0 8px 16px -4px rgba(0,0,0,0.06);
    border-color: rgba(79,70,229,0.2);
}
.mfa .formula-card.expanded {
    box-shadow: 0 20px 40px -8px rgba(79,70,229,0.18), 0 8px 16px -4px rgba(0,0,0,0.06);
}

.mfa .card-header {
    padding: 1rem 1.2rem;
    background: var(--grad-header);
    border-bottom: 1px solid rgba(79,70,229,0.1);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background .2s;
}
.mfa .card-header:hover {
    background: linear-gradient(135deg, #e0e7ff 0%, #dbeafe 50%, #ede9fe 100%);
}

.mfa .card-header h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary-dark);
}

.mfa .card-header .arrow {
    font-size: 0.8rem;
    transition: transform 0.4s ease;
}

.mfa .formula-card.expanded .card-header .arrow {
    transform: rotate(180deg);
}

.mfa .card-body {
    padding: 1rem 1.2rem;
    max-height: 0;
    overflow: hidden;
    padding-top: 0;
    padding-bottom: 0;
    transition: max-height .35s ease, padding .25s ease;
}
.mfa .formula-card.expanded .card-body {
    max-height: 1200px;
    padding: 1rem 1.2rem;
}

.mfa .formula-display {
    background: linear-gradient(135deg, #eef2ff, #e0f2fe, #faf5ff);
    border-radius: var(--radius-sm);
    padding: 0.8rem 1rem;
    margin-bottom: 0.8rem;
    text-align: center;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary);
    font-family: 'Georgia', 'Times New Roman', serif;
    letter-spacing: 0.03em;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(79,70,229,0.08);
    box-shadow: 0 2px 8px rgba(79,70,229,0.04);
}

.mfa .formula-display::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-light), var(--secondary), var(--accent));
    border-radius: 2px;
}

.mfa .formula-desc {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: 0.8rem;
    line-height: 1.5;
}

.mfa .mfa-result {
    background: #ecfdf5;
    border: 1px solid #6ee7b7;
    border-radius: 6px;
    padding: 6px 10px;
    margin-bottom: 0.6rem;
    font-size: .82rem;
    color: #065f46;
    font-family: 'Georgia', 'Times New Roman', serif;
    font-weight: 600;
    line-height: 1.6;
    word-break: break-all;
}
.mfa .mfa-res-label {
    color: #047857;
    font-size: .72rem;
    font-weight: 700;
    margin-right: 4px;
}

.mfa .canvas-container {
    width: 100%;
    height: 240px;
    background: linear-gradient(180deg, #f8faff 0%, #eef2f9 100%);
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid rgba(79,70,229,0.1);
    position: relative;
    cursor: pointer;
    box-shadow: inset 0 2px 8px rgba(79,70,229,0.04);
}

.mfa .mfa-pause-btn {
    position: absolute;
    top: 6px; right: 6px;
    z-index: 5;
    width: 28px; height: 28px;
    border: none;
    border-radius: 50%;
    background: rgba(255,255,255,.85);
    color: #4b5563;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .2s, color .2s;
    padding: 0;
}
.mfa .mfa-pause-btn:hover { background: #fff; color: var(--primary); }
.mfa .mfa-pause-btn svg { width: 14px; height: 14px; }

.mfa .canvas-container canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.mfa .canvas-hint {
    position: absolute;
    bottom: 8px;
    right: 10px;
    font-size: 0.7rem;
    color: var(--text-light);
    background: rgba(255,255,255,0.8);
    padding: 2px 8px;
    border-radius: 20px;
    pointer-events: none;
}

.mfa .interaction-row {
    display: flex;
    gap: 0.6rem;
    margin-top: 0.6rem;
    flex-wrap: wrap;
    padding: 0.6rem 0.8rem;
    background: linear-gradient(135deg, #f8faff, #f0f4ff);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(79,70,229,0.06);
}

.mfa .interaction-row label {
    font-size: 0.75rem;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 0.3rem;
    background: #fff;
    padding: 4px 10px;
    border-radius: 8px;
    border: 1px solid rgba(79,70,229,0.08);
    font-weight: 600;
}
.mfa .interaction-row label > span {
    color: var(--primary);
    font-weight: 700;
    min-width: 1.5em;
    text-align: right;
}

.mfa .interaction-row input[type="range"] {
    width: 80px;
    accent-color: var(--primary);
    cursor: pointer;
    height: 6px;
}

.mfa .interaction-row input[type="number"] {
    width: 60px;
    padding: 0.2rem 0.4rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.8rem;
    text-align: center;
    accent-color: var(--primary);
}

.mfa .interaction-row button {
    padding: 0.3rem 0.8rem;
    border: none;
    background: var(--grad-primary);
    color: white;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 2px 6px rgba(79,70,229,0.15);
}
.mfa .interaction-row button:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(79,70,229,0.25);
}

/* ========== 响应式 ========== */
@media (max-width: 900px) {
    .mfa .main-container {
        flex-direction: column;
    }

    .mfa .sidebar {
        flex: none;
        position: static;
        max-height: none;
    }

    .mfa .stage-tabs {
        flex-direction: row;
    }

    .mfa .category-list {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .mfa .category-btn {
        font-size: 0.78rem;
        padding: 0.5rem 0.8rem;
    }

    .mfa .formula-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 500px) {
    .mfa .main-header h1 {
        font-size: 1.2rem;
    }

    .mfa .canvas-container {
        height: 180px;
    }

    .mfa .formula-display {
        font-size: 1.1rem;
    }
}

/* ========== Footer ========== */
.mfa .main-footer {
    text-align: center;
    padding: 1.5rem;
    color: var(--text-light);
    font-size: 0.85rem;
    position: relative;
    z-index: 1;
}

/* ===== 以下为插件化新增（不属于原项目），用于站内返回入口与来源声明 ===== */
.ma-topnav {
    display: flex;
    gap: .5rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: .9rem;
}
.ma-back {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    padding: .42rem .9rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, .16);
    border: 1px solid rgba(255, 255, 255, .3);
    color: #fff;
    font-size: .85rem;
    font-weight: 600;
    text-decoration: none;
    transition: background .18s ease, transform .18s ease;
}
.ma-back:hover {
    background: rgba(255, 255, 255, .28);
    color: #fff;
    text-decoration: none;
    transform: translateY(-1px);
}
.ma-back svg {
    width: 1em;
    height: 1em;
    flex-shrink: 0;
}
.ma-credit {
    margin-top: .45rem;
    font-size: .78rem;
    opacity: .78;
}
.ma-credit a {
    color: inherit;
    text-decoration: underline;
}

/* 移动端：底部安全区 + 返回入口触控目标放大 */
@media (max-width: 500px) {
    .ma-topnav {
        gap: .4rem;
    }
    .ma-back {
        min-height: 40px;
        font-size: .82rem;
        padding: .4rem .8rem;
    }
    .mfa .main-footer {
        padding-bottom: calc(1.5rem + env(safe-area-inset-bottom, 0px));
    }
}


/* ===== 融入论坛布局：作用域容器与定位修正（插件化新增） ===== */
.mfa {
    position: relative;
    /* overflow-x: clip 不创建滚动容器，避免破坏侧边栏 position: sticky */
    overflow-x: clip;
    background: var(--bg);
    border-radius: var(--radius);
    min-height: auto;      /* 覆盖原 body 的 100vh */
}
/* 背景装饰：原为 fixed 全屏，融入后改为容器内绝对定位，避免盖住论坛页面其它区域 */
.mfa .background-shapes {
    position: absolute;
}
/* 论坛顶部有固定导航栏，侧边栏吸附位置下移，避免被导航遮住 */
@media (min-width: 901px) {
    .mfa .sidebar {
        top: 5rem;
        max-height: calc(100vh - 6rem);
    }
}

/* ================================================================
   界面优化增强层（插件化新增，位于文件末尾以覆盖上方原项目样式）
   ① 修复内容与 Hero 重叠  ② 侧边栏/卡片更现代  ③ 手机端更好用
   ================================================================ */

/* ---- 1. 布局：去掉负 margin，修复与 Hero 的重叠 ---- */
.mfa .main-container {
    margin: 0 auto 1.5rem;
    padding: 1.25rem 0 0;
    gap: 1.25rem;
}

/* ---- 2. Hero：去掉椭圆裁剪，改为紧凑圆角卡片 ---- */
.mfa .main-header {
    clip-path: none;
    border-radius: var(--radius);
    padding: 1.4rem 1rem 1.6rem;
    box-shadow: 0 10px 26px rgba(79, 70, 229, .18);
}
.mfa .main-header h1 {
    font-size: 1.5rem;
    line-height: 1.35;
}
.mfa .subtitle {
    font-size: .88rem;
    margin-top: .25rem;
}
.mfa .ma-topnav { margin-bottom: .7rem; }

/* ---- 3. 侧边栏：分段控件 + 分类卡片 ---- */
.mfa .sidebar { flex: 0 0 240px; }
.mfa .stage-tabs {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: .3rem;
    gap: .3rem;
    box-shadow: var(--shadow);
    margin-bottom: .75rem;
}
.mfa .stage-tab {
    border: 0;
    box-shadow: none;
    background: transparent;
    padding: .6rem .8rem;
    font-size: .9rem;
    border-radius: 8px;
}
.mfa .stage-tab:hover { transform: none; box-shadow: none; background: #eef2ff; }
.mfa .stage-tab.active { background: var(--primary); color: #fff; }
.mfa .category-list {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: .35rem;
    gap: .2rem;
    box-shadow: var(--shadow);
}
.mfa .category-btn {
    box-shadow: none;
    background: transparent;
    border-radius: 8px;
    padding: .6rem .75rem;
    font-size: .86rem;
}
.mfa .category-btn:hover { transform: none; background: #eef2ff; }
.mfa .category-btn.active { background: var(--primary); color: #fff; }

/* ---- 4. 内容区标题与网格 ---- */
.mfa .category-title {
    font-size: 1.25rem;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: .45rem;
    margin-bottom: 1rem;
}
.mfa .formula-grid {
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1rem;
}

/* ---- 5. 公式卡片：更轻的阴影、更清晰的层次 ---- */
.mfa .formula-card { border-radius: 12px; }
.mfa .formula-card:hover { transform: translateY(-2px); }
.mfa .card-header {
    padding: .85rem 1rem;
    background: linear-gradient(135deg, #f5f7ff, #edf2ff);
}
.mfa .card-header h3 { font-size: .98rem; }
.mfa .card-body { padding: .9rem 1rem 1rem; }
.mfa .formula-display {
    font-size: 1.2rem;
    padding: .9rem 1rem;
    background: linear-gradient(135deg, #f5f3ff, #eff6ff);
    border: 1px solid #e0e7ff;
}

/* ---- 6. 参数滑块：更好拖、数值更醒目 ---- */
.mfa .interaction-row {
    margin-top: .75rem;
    padding-top: .7rem;
    border-top: 1px dashed var(--border);
    gap: .6rem 1.1rem;
}
.mfa .interaction-row label {
    font-size: .8rem;
    color: var(--text);
    font-weight: 500;
}
.mfa .interaction-row input[type="range"] { width: 120px; cursor: pointer; }
.mfa .interaction-row label > span {
    min-width: 2.6em;
    text-align: center;
    font-weight: 700;
    color: var(--primary);
    background: #eef2ff;
    border-radius: 6px;
    padding: .08rem .4rem;
    font-size: .78rem;
}
.mfa .canvas-hint { font-size: .68rem; }

/* ---- 7. 手机端优化 ---- */
@media (max-width: 900px) {
    .mfa .main-header { padding: 1.2rem .9rem 1.4rem; }
    .mfa .main-container { padding-top: .9rem; }
    /* 分类改为横向滚动条，避免换行占掉半屏高度 */
    .mfa .category-list {
        flex-direction: row;
        flex-wrap: nowrap;
        overflow-x: auto;
        scrollbar-width: none;
        -webkit-overflow-scrolling: touch;
    }
    .mfa .category-list::-webkit-scrollbar { display: none; }
    .mfa .category-btn { flex: 0 0 auto; white-space: nowrap; }
}
@media (max-width: 575.98px) {
    .mfa .main-header h1 { font-size: 1.05rem; }
    .mfa .subtitle { font-size: .8rem; }
    .mfa .formula-grid { grid-template-columns: 1fr; gap: .8rem; }
    .mfa .category-title { font-size: 1.05rem; }
    .mfa .card-header { padding: .75rem .85rem; }
    .mfa .card-body { padding: .8rem .85rem .9rem; }
    .mfa .formula-display { font-size: 1.1rem; padding: .7rem; }
    /* 滑块占满整行，手指更好拖 */
    .mfa .interaction-row label {
        width: 100%;
        justify-content: space-between;
    }
    .mfa .interaction-row input[type="range"] { flex: 1; width: auto; }
}

/* ================================================================
   手机/平板防溢出加固（放在文件末尾以确保覆盖前面所有规则）
   问题：手机上侧边栏与内容并排、分类按钮不换行、canvas 固定 720px 宽，
        导致导航与画布整体横向溢出到屏幕外（右侧按钮被裁掉）。
   做法：强制单列堆叠 + 限制所有容器宽度 + 画布自适应 + 分类独立横滚。
   ================================================================ */
@media (max-width: 900px) {
    .mfa { max-width: 100%; overflow-x: clip; }
    .mfa .main-container {
        flex-direction: column;
        width: 100%;
        max-width: 100%;
        min-width: 0;
    }
    /* 侧边栏改为整行，取消固定 240px 宽度与 sticky */
    .mfa .sidebar {
        flex: 0 0 auto;
        width: 100%;
        max-width: 100%;
        min-width: 0;
        position: static;
        max-height: none;
        overflow: visible;
    }
    .mfa .stage-tabs {
        width: 100%;
        display: flex;
        flex-wrap: nowrap;
    }
    .mfa .stage-tab {
        flex: 1 1 0;
        min-width: 0;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    /* 分类：自身横滚，不再撑破页面 */
    .mfa .category-list {
        flex-direction: row;
        flex-wrap: nowrap;
        overflow-x: auto;
        width: 100%;
        max-width: 100%;
        min-width: 0;
        scrollbar-width: none;
        -webkit-overflow-scrolling: touch;
    }
    .mfa .category-list::-webkit-scrollbar { display: none; }
    .mfa .category-btn { flex: 0 0 auto; white-space: nowrap; }
    /* 内容区与画布自适应，避免固定 720px 撑出屏幕 */
    .mfa .content { width: 100%; max-width: 100%; min-width: 0; }
    .mfa .canvas-container { width: 100%; max-width: 100%; overflow-x: auto; }
    .mfa .canvas-container canvas {
        width: 100% !important;
        height: 100% !important;
        max-width: 100%;
    }
    .mfa .formula-card, .mfa .card-body, .mfa .interaction-row {
        max-width: 100%;
        min-width: 0;
    }
}

/* ========== 底层思维范式徽章 ========== */
.mfa .mfa-pd-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: .72rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 999px;
    margin-left: 8px;
    vertical-align: middle;
    color: #fff;
    white-space: nowrap;
    text-decoration: none;
    transition: opacity .2s, transform .15s;
}
.mfa .mfa-pd-badge:hover { opacity: .85; transform: translateY(-1px); }
.mfa .mfa-pd-dot {
    display: inline-block;
    width: 6px; height: 6px;
    border-radius: 50%;
    background: currentColor;
    opacity: .8;
}
.mfa .pd-invariant { background: #4f46e5; }
.mfa .pd-building  { background: #047857; }
.mfa .pd-boundary  { background: #c2410c; }
.mfa .pd-pattern   { background: #7c3aed; }
.mfa .pd-condition { background: #be123c; }

/* 页面顶部范式图例 */
.mfa .ma-paradigm-legend {
    margin-top: 8px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    align-items: center;
    justify-content: center;
}
.mfa .ma-pd-title { font-size: .82rem; color: #6b7280; }
.mfa .ma-pd-tag {
    font-size: .72rem;
    font-weight: 600;
    color: #fff;
    padding: 2px 10px;
    border-radius: 999px;
}

/* 搜索框 */
.mfa .ma-search-box {
    margin-top: 10px;
    position: relative;
    max-width: 360px;
    margin-left: auto;
    margin-right: auto;
}
.mfa .ma-search-ico {
    position: absolute;
    left: 10px; top: 50%;
    transform: translateY(-50%);
    width: 16px; height: 16px;
    color: #9ca3af;
    pointer-events: none;
}
.mfa .ma-search-box input {
    width: 100%;
    padding: 7px 12px 7px 34px;
    border: 1px solid #d1d5db;
    border-radius: 999px;
    font-size: .85rem;
    outline: none;
    transition: border-color .2s;
}
.mfa .ma-search-box input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79,70,229,.1);
}

.mfa .mfa-pd-hint {
    background: #fffbeb;
    border-left: 3px solid #f59e0b;
    border-radius: 6px;
    padding: 6px 10px;
    margin: 6px 0 10px;
    font-size: .8rem;
    color: #78350f;
}
.mfa .mfa-pd-hint b { color: #92400e; }
.mfa .mfa-pd-sub { color: #a16207; font-size: .74rem; }
.mfa .mfa-pd-bulb { margin-right: 4px; }

@media (max-width: 640px) {
    .mfa .mfa-pd-badge { font-size: .64rem; padding: 1px 6px; }
}