:root{
--bg:#060910; --ink:#e7ecff; --muted:#9fb3d1; --card:rgba(17,25,40,.75);
--edge:rgba(120,144,180,.18); --accent:#7de0ff; --violet:#a87dff; --hot:#ff6b6b;
}
.gcsm-btn{display:inline-block;padding:.65rem 1rem;border:1px solid var(--edge);border-radius:12px;background:linear-gradient(180deg,var(--card),rgba(12,18,30,.88));color:var(--ink);text-decoration:none;cursor:pointer;transition:transform .12s ease,box-shadow .12s ease}
.gcsm-btn:hover{transform:translateY(-1px);box-shadow:0 8px 22px rgba(0,0,0,.3)}
.gcsm-btn.ghost{background:transparent}
.gcsm-btn.xs{padding:.25rem .5rem;border-radius:8px;font-size:.85rem}
.gcsm-small{font-size:.9rem;color:var(--muted)}
.gcsm-badge{display:inline-block;padding:.15rem .45rem;border:1px solid var(--edge);border-radius:8px;font-size:.75rem;color:var(--muted);background:rgba(10,16,26,.6)}
.gcsm-badge.accent{color:#111;background:linear-gradient(180deg,#c6f4ff,#7de0ff)}
.gcsm-badge.warn{background:linear-gradient(180deg,#ffd3d3,#ffa9a9);color:#111;border-color:#ffc2c2}
.gcsm-hero{padding:28px 16px;border-bottom:1px solid var(--edge);background:radial-gradient(1000px 300px at 30% 0%,rgba(125,224,255,.08),transparent);}
.gcsm-hero__text{max-width:980px;margin:auto}
.gcsm-hero h1{margin:0 0 6px;font-size:clamp(1.6rem,3.5vw,2.2rem)}
.gcsm-search{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}
.gcsm-search input,.gcsm-search select{background:rgba(10,16,26,.75);border:1px solid var(--edge);border-radius:10px;color:var(--ink);padding:.6rem .7rem;min-width:140px}
.gcsm-grid{max-width:1100px;margin:16px auto;padding:0 16px}
.gcsm-grid__head{display:flex;align-items:end;justify-content:space-between;margin:6px 0 10px}
.gcsm-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.gcsm-card{background:var(--card);border:1px solid var(--edge);border-radius:14px;overflow:hidden;display:flex;flex-direction:column}
.gcsm-card__img{display:block;position:relative;aspect-ratio:4/3;background:rgba(0,0,0,.25)}
.gcsm-card__img img{width:100%;height:100%;object-fit:cover}
.gcsm-chip-row{position:absolute;left:8px;top:8px;display:flex;gap:6px}
.gcsm-card__body{padding:10px 12px;display:flex;flex-direction:column;gap:8px}
.gcsm-title{margin:0;font-size:1.02rem;line-height:1.2}
.gcsm-price{font-weight:700}
.gcsm-sub{color:var(--muted);font-size:.95rem}
.gcsm-actions{margin-top:auto;display:flex;gap:8px}
.gcsm-empty{padding:16px;border:1px dashed var(--edge);border-radius:12px;color:var(--muted)}
.gcsm-sell{max-width:980px;margin:20px auto;padding:0 16px}
.gcsm-form{border:1px solid var(--edge);border-radius:14px;background:var(--card);padding:14px}
.gcsm-form__row{margin:10px 0}
.gcsm-form input,.gcsm-form textarea,.gcsm-form select{width:100%;padding:.6rem .7rem;border:1px solid var(--edge);border-radius:10px;background:rgba(10,16,26,.75);color:var(--ink)}
.gcsm-form__cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
@media (max-width:800px){.gcsm-form__cols{grid-template-columns:1fr}}
.gcsm-my{max-width:900px;margin:10px auto;padding:0 16px}
.gcsm-list{list-style:none;padding:0;margin:0}
.gcsm-list li{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid var(--edge)}