/* ============================================================
   第 6 站 · 独立区域：XOR（异或）多层神经网络实验
   配合 js/xor-lab.js；已从 #nnlab（扫地机器人实验室）里独立出来，
   所以本文件自带按钮 / 面板 / 状态条等组件样式，不依赖 neural-net-lab.css
   ============================================================ */

#xorCard {
    background: #fff; border-radius: 18px; padding: 22px 24px; margin: 0 0 16px;
    border: 1px solid rgba(0, 0, 0, .06); box-shadow: 0 4px 18px rgba(0, 0, 0, .05);
    color: #384f82; font-size: 16px;
}
#xorCard h3 {
    font-family: 'Noto Serif SC', serif; font-size: 19px; font-weight: 900; color: #0d2259;
    margin: 0 0 10px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
}
#xorCard h3::after {
    content: ''; flex: 1 1 40px; height: 2px; border-radius: 2px;
    background: linear-gradient(90deg, #2f6bff, transparent);
}
#xorCard p, #xorCard li { font-size: 14px; line-height: 1.85; }
#xorCard .muted { color: #8496bb; font-size: 12.5px; }
#xorCard .badge {
    display: inline-block; background: #e8f0ff; color: #1e4fd6; padding: 2px 11px;
    border-radius: 30px; font-size: 11px; font-weight: 800; white-space: nowrap;
}

/* ---- 面板 / 按钮 / 输入（与第 6 站实验室同款外观）---- */
#xorCard .panel { background: #fff; border-radius: 16px; border: 1px solid #eef2fc; padding: 14px 16px;
    box-shadow: 0 6px 18px -6px rgba(47, 107, 255, .16); }
#xorCard .panel-title { font-size: 14px; font-weight: 800; color: #0d2259; margin-bottom: 12px;
    display: flex; align-items: center; gap: 8px; }
#xorCard .panel-title .badge { font-size: 11px; background: #e8f0ff; color: #1e4fd6; padding: 0 10px; border-radius: 30px; font-weight: 800; }
#xorCard .btn { border: none; border-radius: 30px; padding: 10px 20px; font-size: 13px; font-weight: 800;
    cursor: pointer; transition: .15s; color: #fff; font-family: inherit; box-shadow: 0 6px 18px -6px rgba(47, 107, 255, .16); }
#xorCard .btn:active { transform: scale(.96); }
#xorCard .btn-primary { background: linear-gradient(135deg, #2f6bff, #1e4fd6); }
#xorCard .btn-ghost { background: #eef1fa; color: #5a638a; box-shadow: none; }
#xorCard .btn:disabled { opacity: .5; cursor: default; }
#xorCard .ctrl-group { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 4px; }
#xorCard .ctrl-label { font-size: 13px; color: #46587d; font-weight: 700; }
#xorCard .ctrl-input { width: 64px; padding: 5px 8px; border-radius: 12px; border: 2px solid #cfddfc; font-size: 13px;
    text-align: center; font-weight: 700; outline: none; font-family: inherit; }
#xorCard .ctrl-input:focus { border-color: #2f6bff; box-shadow: 0 0 0 3px rgba(47, 107, 255, .15); }
#xorCard .status-bar { background: #f7f9ff; border: 1px solid #e8eefb; border-radius: 14px; padding: 10px 14px;
    font-size: 13px; color: #46587d; display: flex; flex-wrap: wrap; gap: 10px 24px; margin-top: 10px; }
#xorCard .status-item { display: flex; align-items: center; gap: 6px; }
#xorCard .status-item .dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
#xorCard .dot.blue { background: #2f6bff; }

/* ---- 布局 ---- */
#xorCard .xor-grid { display: grid; grid-template-columns: minmax(0, 1fr) 272px; gap: 14px; align-items: start; margin-top: 4px; }
#xorCard .xor-maps { display: flex; gap: 12px; flex-wrap: wrap; }
#xorCard .xor-panel { flex: 1 1 220px; min-width: 200px; background: #fbfdff; border: 1px solid #e6eefc; border-radius: 16px; padding: 10px 10px 9px; }
#xorCard .xor-panel canvas { display: block; width: 100%; height: auto; border-radius: 12px; background: #fff; }
#xorCard .xor-cap { font-size: 12.5px; font-weight: 800; color: #0d2259; margin-bottom: 6px; }
#xorCard .xor-cap span { display: block; font-weight: 600; font-size: 11px; color: #8496bb; margin-top: 2px; }
#xorCard .xor-metrics { margin-top: 7px; display: flex; gap: 8px; flex-wrap: wrap; align-items: center; font-size: 11.5px; color: #46587d; }
#xorCard .xor-metrics b { color: #0d2259; }

#xorCard .xor-ctrl { display: flex; flex-direction: column; gap: 10px; min-width: 0; }

/* ---- 结构对比（两个小网络图）---- */
#xorCard .xor-struct-cap { font-size: 12px; font-weight: 800; color: #0d2259; margin: 10px 0 4px; }
#xorCard .xor-struct-cap span { font-weight: 600; color: #8496bb; font-size: 11px; margin-left: 4px; }
#xorCard .xor-note { font-size: 10.5px; color: #8a93b8; text-align: center; margin: 6px 0 0; line-height: 1.6; }

#xorCard .xor-viz { background: #fbfdff; border: 1px solid #eef2fc; border-radius: 14px; padding: 6px; }
#xorCard .xor-viz svg { width: 100%; height: auto; display: block; }

#xorCard .xor-switches { display: flex; gap: 8px; }
#xorCard .xor-sw { flex: 1; border: 2px solid #cfddfc; background: #fff; color: #1e4fd6; font-weight: 800;
    font-size: 12.5px; border-radius: 12px; padding: 7px 8px; cursor: pointer; transition: all .18s;
    font-family: Consolas, Menlo, monospace; }
#xorCard .xor-sw:hover { transform: translateY(-1px); }
#xorCard .xor-sw:active { transform: scale(.97); }
#xorCard .xor-sw.on { background: linear-gradient(135deg, #2f6bff, #1e4fd6); border-color: #1e4fd6; color: #fff; }

#xorCard .xor-read { display: flex; flex-direction: column; gap: 5px; font-size: 12.5px; }
#xorCard .xor-read .rw { display: flex; align-items: center; justify-content: space-between; gap: 8px; color: #46587d; }
#xorCard .xor-read .rw b { font-family: Consolas, Menlo, monospace; color: #0d2259; font-size: 12.5px; }
#xorCard .xor-pill { border-radius: 10px; padding: 2px 9px; font-size: 11.5px; font-weight: 800; }
#xorCard .xor-pill.ok { background: #e3f9f0; color: #0e8f66; }
#xorCard .xor-pill.bad { background: #ffe9ee; color: #d33a5c; }

#xorCard .xor-loss-wrap { margin-top: 14px; }
#xorCard .xor-loss-wrap canvas { display: block; width: 100%; height: auto; }
#xorCard .xor-legend { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; justify-content: center;
    font-size: 11px; color: #5a6b96; margin-top: 5px; }
#xorCard .xor-legend .lg { display: inline-block; width: 20px; height: 5px; border-radius: 3px; }
#xorCard .xor-legend .lg.s { background: #f0446a; }
#xorCard .xor-legend .lg.m { background: #2f6bff; }
#xorCard .xor-legend .lg.h1 { background: #f59e0b; }
#xorCard .xor-legend .lg.h2 { background: #a855f7; }

#xorCard .xor-verdict { margin-top: 12px; font-size: 13px; line-height: 1.85; border-radius: 14px; padding: 10px 14px;
    background: #f7f9ff; border: 1px solid #e8eefb; color: #46587d; }
#xorCard .xor-verdict.hit { background: #eefaf4; border-color: #c8f0de; color: #0e8f66; font-weight: 700; }
#xorCard .xor-verdict b { color: #0d2259; }
#xorCard .xor-verdict.hit b { color: #0b6b4d; }

@media (max-width: 900px) {
    #xorCard .xor-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 520px) {
    #xorCard { padding: 16px 14px; }
    #xorCard h3 { font-size: 17px; }
    #xorCard .xor-panel { flex: 1 1 100%; }
}