/* ===== 记忆翻牌配对 ===== */
#mmApp .mm-hero { text-align: center; padding: 12px 10px 0; }
#mmApp .mm-hero h1 { font-size: 30px; font-weight: 800; color: var(--c-text); margin-bottom: 10px; }
#mmApp .mm-hero p { font-size: 15px; color: var(--c-text-sub); line-height: 1.7; }

#mmApp .mm-bar { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin: 18px 0; }
#mmApp .mm-tab {
    border: 2px solid var(--c-primary); background: transparent; color: var(--c-primary);
    border-radius: 999px; padding: 8px 16px; font-size: 14px; font-weight: 700;
    cursor: pointer; transition: background .15s, color .15s;
}
#mmApp .mm-tab.is-on { background: var(--c-primary); color: #fff; }

#mmApp .mm-panel {
    max-width: 720px; margin: 0 auto; background: var(--c-surface);
    border: 1px solid var(--c-border); border-radius: var(--radius-md);
    padding: 22px 18px; box-shadow: var(--shadow-md); text-align: center;
}
#mmApp .mm-hud { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 16px; }
#mmApp .mm-chip {
    background: var(--c-surface-soft); border: 1px solid var(--c-border); border-radius: 999px;
    padding: 7px 14px; font-size: 14px; font-weight: 700; color: var(--c-text-sub);
}
#mmApp .mm-chip b { color: var(--c-primary); font-size: 17px; }

#mmApp .mm-board { display: grid; gap: 10px; margin: 0 auto; max-width: 640px; }
#mmApp .mm-card {
    aspect-ratio: 3 / 4; padding: 0; border: none; background: transparent; cursor: pointer;
    perspective: 700px;
}
#mmApp .mm-inner {
    position: relative; width: 100%; height: 100%;
    transform-style: preserve-3d; transition: transform .38s cubic-bezier(.4,.1,.2,1);
}
#mmApp .mm-card.open .mm-inner, #mmApp .mm-card.peek .mm-inner { transform: rotateY(180deg); }
#mmApp .mm-face {
    position: absolute; inset: 0; border-radius: 14px; backface-visibility: hidden;
    display: flex; align-items: center; justify-content: center;
    font-size: clamp(20px, 5.5vw, 38px); line-height: 1;
    border: 2px solid var(--c-border);
}
#mmApp .mm-back {
    background: linear-gradient(135deg, var(--c-primary), var(--c-accent-cyan));
    border-color: transparent; color: #fff; font-size: clamp(18px, 4.6vw, 30px); font-weight: 800;
}
#mmApp .mm-front {
    background: var(--c-surface-soft); transform: rotateY(180deg);
}
#mmApp .mm-card.matched .mm-front {
    background: var(--c-primary-soft); border-color: var(--c-primary);
    box-shadow: 0 0 0 3px rgba(74, 163, 137, .18);
}
#mmApp .mm-card.wrong .mm-front { border-color: #e03131; background: #fff0f0; }

#mmApp .mm-msg { font-size: 17px; font-weight: 800; min-height: 26px; margin-top: 16px; color: var(--c-text); }
#mmApp .mm-msg.ok { color: var(--c-primary); }

#mmApp .mm-ctrl { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 18px; }
#mmApp .mm-btn {
    border: none; border-radius: 999px; padding: 12px 20px; font-size: 15px; font-weight: 700;
    color: #fff; cursor: pointer; background: linear-gradient(135deg, var(--c-primary), var(--c-accent-cyan));
    box-shadow: var(--shadow-md);
}
#mmApp .mm-btn.gray { background: var(--c-surface-2); color: var(--c-text); box-shadow: none; border: 1px solid var(--c-border); }

#mmApp .mm-stat {
    max-width: 720px; margin: 18px auto 0; background: var(--c-surface);
    border: 1px solid var(--c-border); border-radius: var(--radius-md);
    padding: 14px 18px; box-shadow: var(--shadow-md); text-align: center;
    font-size: 14px; line-height: 1.9; color: var(--c-text-sub);
}
#mmApp .mm-stat b { color: var(--c-primary); font-size: 17px; }

#mmApp .mm-ai, #mmApp .mm-info { max-width: 720px; margin: 30px auto 0; }
#mmApp .mm-ai h2, #mmApp .mm-info h2 { font-size: 20px; font-weight: 800; color: var(--c-text); margin-bottom: 10px; }
#mmApp .mm-ai p { font-size: 14px; color: var(--c-text-sub); line-height: 1.8; margin-bottom: 14px; }
#mmApp .mm-ai-row { display: flex; gap: 10px; flex-wrap: wrap; }
#mmApp .mm-out {
    margin-top: 14px; background: var(--c-surface-soft); border: 1px solid var(--c-border);
    border-radius: var(--radius-sm); padding: 16px 18px;
    font-size: 15px; line-height: 1.85; color: var(--c-text); white-space: pre-wrap;
}
#mmApp .mm-info ul { list-style: disc; padding-left: 22px; margin-bottom: 24px; }
#mmApp .mm-info li { font-size: 14px; line-height: 1.9; color: var(--c-text-sub); margin-bottom: 8px; }
#mmApp .mm-info li b { color: var(--c-text); }

@media (max-width: 560px) {
    #mmApp .mm-hero h1 { font-size: 24px; }
    #mmApp .mm-board { gap: 7px; }
}