body { margin: 0; min-height: 100vh; background: var(--bg); color: var(--text); }
.panel-header { position: sticky; top: 0; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px max(4vw, 16px); border-bottom: 1px solid var(--border); background: var(--bg); }
.panel-header img { width: auto; height: 36px; max-width: 110px; object-fit: contain; }
.panel-header nav { display: flex; align-items: center; gap: clamp(10px, 2vw, 28px); flex-wrap: wrap; justify-content: flex-end; }
.panel-header nav button { width: 38px; height: 38px; border: 1px solid var(--border); border-radius: 50%; cursor: pointer; }
.panel-main { width: min(calc(100% - 32px), 1140px); margin: 48px auto 72px; }
.panel-heading { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 22px; }
.panel-heading h1 { margin: 4px 0 0; font-size: clamp(32px, 6vw, 58px); font-weight: 700; line-height: 1.03; }
.panel-card { margin-bottom: 20px; padding: clamp(16px, 3vw, 28px); background: var(--bg-2); border: 1px solid var(--border); border-radius: 18px; scroll-margin-top: 85px; }
.panel-card h2 { margin: 0 0 12px; font-size: clamp(23px, 3vw, 30px); font-weight: 700; }
.panel-card p { margin: 12px 0; }
.panel-card label { display: grid; gap: 5px; margin: 14px 0; font-weight: 600; }
.panel-card input:not([type=checkbox]), .panel-card select { width: 100%; min-width: 0; padding: 10px 12px; border-radius: 9px; border: 1px solid var(--border); background: var(--bg); color: var(--text); }
.panel-card input::file-selector-button { margin-right: 9px; color: var(--text); background: var(--bg-3); border: 0; border-radius: 5px; padding: 4px 8px; cursor: pointer; }
.panel-card small { display: block; opacity: .8; font-weight: 400; }
.panel-card .panel-check { display: flex; align-items: center; }
.panel-login, .panel-order-detail { max-width: 560px; }
.panel-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: start; }
.panel-pair { display: grid; gap: 12px; grid-template-columns: 1fr 1fr; }
.panel-catalog, .panel-orders { list-style: none; margin: 0; padding: 0; }
.panel-catalog { max-height: 440px; overflow: auto; }
.panel-catalog a, .panel-orders li { display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--border); }
.panel-catalog img, .panel-thumb { width: 42px; height: 50px; display: grid; place-items: center; object-fit: cover; border-radius: 6px; background: var(--bg-3); }
.panel-count { font-size: 16px; color: var(--accent); }
.panel-notice { margin: 0 0 20px; padding: 12px 16px; border-radius: 9px; background: color-mix(in srgb, var(--accent) 13%, var(--bg)); }
.panel-error { border: 1px solid #d85555; }
.panel-checkout { display: grid; grid-template-columns: minmax(120px, 230px) 1fr; gap: clamp(16px, 4vw, 42px); max-width: 800px; }
.panel-checkout img { width: 100%; border-radius: 10px; }
.panel-price { font-size: 24px; font-weight: 700; }
.panel-main a:not([class]):hover, .panel-header a:hover { text-decoration: underline; }
@media (max-width: 680px) {
    .panel-columns, .panel-checkout { grid-template-columns: 1fr; }
    .panel-checkout img { max-width: 160px; }
    .panel-orders li { grid-template-columns: 1fr; }
}