body { margin: 0; background: #0a0a0a; color: #f5f5f5; font-family: -apple-system, sans-serif; font-size: 13px; }
.mon-layout { display: flex; min-height: 100vh; }
.mon-line-bar { width: 5%; border-right: 1px solid #222; position: sticky; top: 0; height: 100vh; }
.mon-main { width: 95%; padding: 60px 80px; box-sizing: border-box; }
.mon-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 50px; }
.mon-logo img { height: 20px; filter: grayscale(1); }
.mon-nav { display: flex; gap: 30px; }
.mon-nav a { color: #555; text-decoration: none; font-size: 13px; font-weight: bold; padding-bottom: 5px; transition: 0.2s; }
.mon-nav a:hover, .mon-nav .active { color: #fff; border-bottom: 1px solid #fff; }
.mon-notice-bar { padding: 25px 0; border-top: 1px solid #222; border-bottom: 1px solid #222; margin-bottom: 40px; }
.mon-notice-title { font-weight: bold; color: #ff4500; margin-bottom: 8px; }
.mon-cat-hd { font-size: 14px; font-weight: bold; margin: 50px 0 20px; letter-spacing: 1px; color: #888; }
.mon-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px 60px; }
.mon-card { text-decoration: none; color: #fff; transition: 0.3s; position: relative; display: block; }
.mon-card:hover .mon-name { color: #fff; }
.mon-card:hover .mon-img-box img { transform: scale(1.05); }
.mon-img-box { width: 100%; aspect-ratio: 1.6; background: #111; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.mon-img-box img { width: 50%; height: 50%; object-fit: contain; transition: 0.3s; filter: grayscale(1); }
.mon-name { font-size: 13px; color: #888; margin-top: 15px; margin-bottom: 8px; transition: 0.2s; }
.mon-footer-meta { display: flex; justify-content: space-between; align-items: center; }
.mon-price { font-size: 15px; font-weight: bold; }
.mon-tag-auto { position: absolute; top: 15px; right: 15px; font-size: 9px; border: 1px solid #222; padding: 2px 6px; color: #888; background: #111; }
.mon-trade-node { display: flex; flex-wrap: wrap; gap: 40px; }
.mon-media-side { flex: 0 0 35%; padding: 20px; display: flex; align-items: center; box-sizing: border-box; background: #111; }
.mon-media-side img { width: 100%; filter: grayscale(1); }
.mon-form-side { flex: 1; min-width: 320px; box-sizing: border-box; }
.mon-title { font-size: 20px; font-weight: bold; margin-bottom: 20px; }
.mon-tag-status { display: inline-block; padding: 2px 8px; border: 1px solid #222; font-size: 11px; margin-bottom: 20px; color: #555; }
.mon-price-node { margin-bottom: 25px; padding: 20px 0; border-top: 1px solid #222; border-bottom: 1px solid #222; display: flex; justify-content: space-between; align-items: center; }
.mon-input { width: 100%; height: 42px; background: #111; border: 1px solid #222; color: #fff; padding: 0 15px; box-sizing: border-box; outline: none; margin-bottom: 15px; }
.mon-input:focus { border-color: #555; }
.mon-btn-submit { width: 100%; height: 46px; background: #fff; color: #000; border: none; cursor: pointer; font-size: 13px; font-weight: bold; transition: 0.2s; }
.mon-btn-submit:hover { opacity: 0.9; }
.mon-btn-submit:disabled { background: #111; color: #444; border: 1px solid #222; cursor: not-allowed; }
.mon-desc-box { margin-top: 50px; border-top: 1px solid #222; padding-top: 30px; }
.mon-desc-title { font-size: 12px; font-weight: bold; margin-bottom: 15px; }
.mon-ls-container { border-top: 1px solid #222; }
.mon-ls-th { display: flex; padding: 12px 0; color: #555; border-bottom: 1px solid #222; }
.mon-ls-tr { display: flex; padding: 16px 0; border-bottom: 1px solid #111; align-items: center; }
.mon-ls-tr:last-child { border-bottom: none; }
.mon-cl-name { flex: 2; } .mon-cl-name a { color: #fff; text-decoration: none; font-weight: bold; }
.mon-cl-mode, .mon-cl-price, .mon-cl-stock { flex: 0.8; text-align: center; }
.mon-cl-opt { flex: 0.6; text-align: right; }
.mon-btn-go { display: inline-block; background: #fff; color: #000; padding: 4px 15px; text-decoration: none; font-size: 11px; font-weight: bold; }
.mon-checkout-node { background: #111; padding: 30px; max-width: 520px; margin: 40px auto; }
.mon-data-row { display: flex; justify-content: space-between; padding: 12px 0; border-bottom: 1px dashed #222; }
.mon-gateway-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 15px; }
.mon-gateway-btn { background: #000; border: 1px solid #222; padding: 15px; cursor: pointer; display: flex; align-items: center; justify-content: center; }
.mon-gateway-btn img { height: 24px; filter: grayscale(1); }
.mon-auth-node { background: #111; overflow: hidden; max-width: 440px; margin: 40px auto; }
.mon-auth-tab { display: flex; background: #000; border-bottom: 1px solid #222; }
.mon-auth-link { flex: 1; text-align: center; line-height: 48px; color: #555; text-decoration: none; border-right: 1px solid #222; }
.mon-auth-link.is-active { background: #111; color: #fff; font-weight: bold; position: relative; }
.mon-auth-link.is-active::after { content: ""; position: absolute; bottom: 0; left: 0; width: 100%; height: 2px; background: #fff; }
.mon-mini-table { margin-top: 20px; border: 1px solid #222; overflow: hidden; }
.mon-mini-row { display: flex; padding: 10px; border-bottom: 1px solid #222; align-items: center; color: #888; }
.mon-mini-h { background: #000; color: #444; }
.mon-m-node { border: 1px solid #222; margin-bottom: 10px; background: #000; overflow: hidden; }
.mon-m-trigger { padding: 12px; display: flex; justify-content: space-between; cursor: pointer; }
.mon-footer { display: flex; justify-content: space-between; border-top: 1px solid #222; padding-top: 25px; margin-top: 40px; font-size: 11px; color: #444; }
.mon-footer a { color: #444; text-decoration: none; margin-left: 15px; }
@media (max-width: 768px) {
    .mon-line-bar { display: none; }
    .mon-main { width: 100%; padding: 30px 20px; }
    .mon-grid { grid-template-columns: 1fr; gap: 30px; }
    .mon-trade-node { flex-direction: column; }
}