:root{--forest: #5f8f76;--forest-dark: #4c7560;--forest-soft: #8bbfa6;--mint: #eef8f2;--ink: #24342d;--muted: #5d6d64;--line: #e4ece7;--danger: #b3544f;--gold: #c9a227}*{box-sizing:border-box;margin:0;padding:0}html,body,#app{height:100%}body{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif;color:var(--ink);background:var(--mint);-webkit-font-smoothing:antialiased}a{text-decoration:none;color:inherit}button{font-family:inherit}.silva-shell{max-width:560px;margin:0 auto;min-height:100%;display:flex;flex-direction:column;background:var(--mint)}.silva-header{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;padding:12px 18px;background:var(--forest);color:#fff}.silva-brand{display:flex;align-items:center;gap:9px}.brand-mark{width:30px;height:30px;border-radius:9px;background:#ffffff2e;display:grid;place-items:center;font-weight:900}.brand-copy{display:flex;flex-direction:column;line-height:1.1}.brand-copy strong{font-size:16px}.brand-copy small{font-size:11px;opacity:.85}.header-link{font-size:13px;padding:6px 12px;border-radius:999px;background:#ffffff29}.silva-main{flex:1;padding:14px 14px 76px}.silva-tabbar{position:fixed;bottom:0;left:50%;transform:translate(-50%);width:100%;max-width:560px;display:flex;background:#fff;border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}.tab-item{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 0 6px;color:var(--muted);font-size:11px}.tab-item.active{color:var(--forest)}.tab-icon{font-size:18px;line-height:1}.card{background:#fff;border-radius:14px;padding:14px;box-shadow:0 1px 3px #24342d0f}.section-title{font-size:15px;font-weight:800;margin:4px 2px 10px}.muted{color:var(--muted);font-size:12px}.price{color:#c7531f;font-weight:800}.price.free{color:var(--forest)}.tag{display:inline-block;font-size:11px;padding:2px 8px;border-radius:999px;background:var(--mint);color:var(--forest)}.button{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:none;border-radius:12px;padding:11px 16px;font-size:14px;font-weight:700;cursor:pointer}.button.primary{background:var(--forest);color:#fff}.button.ghost{background:transparent;color:var(--forest);border:1px solid var(--forest)}.button.danger{background:var(--danger);color:#fff}.button.block{width:100%}.button:disabled{opacity:.55;cursor:not-allowed}.feed{display:flex;flex-direction:column;gap:10px}.product-card{display:flex;gap:12px}.product-cover{width:74px;height:74px;border-radius:10px;background:var(--mint);flex-shrink:0;display:grid;place-items:center;font-size:26px;color:var(--forest);overflow:hidden}.product-cover img{width:100%;height:100%;object-fit:cover}.product-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:4px}.product-title{font-size:15px;font-weight:800;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.product-meta{display:flex;gap:6px;align-items:center}.product-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto}.form-field{margin-bottom:12px}.form-field label{display:block;font-size:13px;font-weight:700;margin-bottom:6px}.form-field input,.form-field textarea,.form-field select{width:100%;border:1px solid var(--line);border-radius:10px;padding:10px 12px;font-size:14px;font-family:inherit;background:#fff}.form-field textarea{resize:vertical;min-height:80px}.hint{font-size:12px;color:var(--muted)}.empty{text-align:center;padding:44px 20px;color:var(--muted)}.loading{text-align:center;padding:40px 20px;color:var(--muted)}.error-text{color:var(--danger);font-size:13px}.balance-pill{display:flex;align-items:baseline;gap:4px}.balance-num{font-size:26px;font-weight:900}