:root {
    --xy-yellow: #ffe60f;
    --xy-yellow-dark: #ffd100;
    --xy-yellow-light: #fff9d6;
    --xy-bg: #fffdf5;
    --xy-white: #ffffff;
    --xy-text: #1f1f1f;
    --xy-text-muted: #666666;
    --xy-border: #f0e6a8;
    --xy-border-light: #f5f5f5;
    --xy-selected: #f0f0f0;
    --xy-selected-text: #333333;
    --xy-danger: #ff4d4f;
    --xy-success-bg: #f6ffed;
    --xy-success-text: #389e0d;
    --xy-error-bg: #fff2f0;
    --xy-error-text: #cf1322;
}

body.xy-app {
    background: var(--xy-bg);
    color: var(--xy-text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.xy-sidebar {
    background: var(--xy-white);
    border-right: 1px solid var(--xy-border-light);
}

.xy-sidebar-brand {
    background: linear-gradient(135deg, var(--xy-yellow) 0%, var(--xy-yellow-dark) 100%);
    color: var(--xy-text);
    font-weight: 700;
}

.xy-nav-item {
    display: block;
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
    color: var(--xy-text-muted);
    transition: background 0.15s, color 0.15s;
}

.xy-nav-item:hover {
    background: var(--xy-yellow-light);
    color: var(--xy-text);
}

.xy-nav-item.active {
    background: var(--xy-selected);
    color: var(--xy-selected-text);
    font-weight: 600;
}

.xy-header {
    background: var(--xy-white);
    border-bottom: 1px solid var(--xy-border-light);
}

.xy-header-title {
    position: relative;
    padding-left: 0.75rem;
}

.xy-header-title::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.15rem;
    bottom: 0.15rem;
    width: 4px;
    border-radius: 2px;
    background: var(--xy-yellow);
}

.xy-card {
    background: var(--xy-white);
    border: 1px solid var(--xy-border-light);
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.xy-card-highlight {
    background: var(--xy-yellow-light);
    border: 1px solid var(--xy-border);
    border-radius: 12px;
}

.xy-btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--xy-yellow);
    color: var(--xy-text);
    border: 1px solid var(--xy-yellow-dark);
    border-radius: 8px;
    padding: 0.5rem 1rem;
    font-weight: 600;
    line-height: 1.25;
    transition: background 0.15s;
    box-sizing: border-box;
}

.xy-btn-primary:hover {
    background: var(--xy-yellow-dark);
}

.xy-btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--xy-white);
    color: var(--xy-text);
    border: 1px solid #dddddd;
    border-radius: 8px;
    padding: 0.5rem 1rem;
    line-height: 1.25;
    box-sizing: border-box;
}

.xy-btn-secondary:hover {
    background: var(--xy-selected);
}

.xy-btn-danger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--xy-danger);
    background: var(--xy-white);
    border: 1px solid #f5c2c7;
    border-radius: 8px;
    padding: 0.5rem 1rem;
    line-height: 1.25;
    box-sizing: border-box;
}

.xy-btn-danger:hover {
    background: var(--xy-error-bg);
}

.xy-btn-action {
    height: 36px;
    min-width: 96px;
    padding: 0 14px;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
}

.xy-input,
.xy-select,
.xy-textarea {
    width: 100%;
    border: 1px solid #dddddd;
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
    background: var(--xy-white);
    transition: border-color 0.15s, box-shadow 0.15s;
}

.xy-input:focus,
.xy-select:focus,
.xy-textarea:focus {
    outline: none;
    border-color: var(--xy-yellow-dark);
    box-shadow: 0 0 0 3px rgba(255, 230, 15, 0.25);
}

.xy-link {
    color: #c89600;
    font-weight: 500;
}

.xy-link:hover {
    color: #a67c00;
    text-decoration: underline;
}

.xy-filter {
    display: inline-block;
    padding: 0.35rem 0.85rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    background: var(--xy-white);
    border: 1px solid #dddddd;
    color: var(--xy-text-muted);
}

.xy-filter:hover {
    background: var(--xy-yellow-light);
    color: var(--xy-text);
}

.xy-filter.active {
    background: var(--xy-selected);
    border-color: #cccccc;
    color: var(--xy-selected-text);
    font-weight: 600;
}

.xy-table thead {
    background: var(--xy-yellow-light);
    color: var(--xy-text-muted);
}

.xy-table tbody tr {
    border-top: 1px solid var(--xy-border-light);
}

.xy-table tbody tr:hover {
    background: #fafafa;
}

.xy-badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 500;
}

.xy-badge-draft { background: #f5f5f5; color: #666; }
.xy-badge-confirmed { background: var(--xy-yellow-light); color: #8a6d00; border: 1px solid var(--xy-border); }
.xy-badge-shipped { background: #e6f4ff; color: #0958d9; }
.xy-badge-completed { background: var(--xy-success-bg); color: var(--xy-success-text); }
.xy-badge-cancelled { background: var(--xy-error-bg); color: var(--xy-error-text); }

.xy-alert-success {
    background: var(--xy-success-bg);
    color: var(--xy-success-text);
    border: 1px solid #b7eb8f;
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
}

.xy-alert-error {
    background: var(--xy-error-bg);
    color: var(--xy-error-text);
    border: 1px solid #ffccc7;
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
}

.xy-stat-value {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--xy-text);
}

.xy-stat-label {
    font-size: 0.875rem;
    color: var(--xy-text-muted);
}

.xy-card:hover {
    border-color: var(--xy-border);
}

.xy-empty {
    color: #999;
    text-align: center;
    padding: 2.5rem 0;
}

.xy-pagination nav span,
.xy-pagination nav a {
    border-radius: 6px !important;
}

.xy-pagination nav span[aria-current="page"] span {
    background: var(--xy-selected) !important;
    color: var(--xy-text) !important;
    border-color: #cccccc !important;
}

.xy-login-page {
    min-height: 100vh;
    background: linear-gradient(180deg, var(--xy-yellow) 0%, var(--xy-bg) 45%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.xy-login-card {
    width: 100%;
    max-width: 28rem;
    background: var(--xy-white);
    border-radius: 16px;
    border: 1px solid var(--xy-border-light);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    padding: 2rem;
}

.xy-login-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.xy-login-brand-icon {
    width: 2rem;
    height: 2rem;
    border-radius: 8px;
    background: var(--xy-yellow);
    border: 1px solid var(--xy-yellow-dark);
}

.xy-text-accent {
    color: var(--xy-danger);
    font-weight: 700;
}