:root {
  --primary: #06B6D4;
  --primary-hover: #0891B2;
  --primary-light: #ECFEFF;
  --bg-page: #F8FAFC;
  --bg-card: #FFFFFF;
  --text-primary: #1E293B;
  --text-secondary: #64748B;
  --border: #E2E8F0;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.03);
  --status-pending: #94A3B8;
  --status-inspection: #F59E0B;
  --status-washing: #06B6D4;
  --status-ready: #10B981;
  --status-completed: #059669;
  --status-exception: #EF4444;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans", sans-serif;
  background: var(--bg-page); color: var(--text-primary); line-height: 1.5;
  padding: 16px; max-width: 480px; margin: 0 auto; min-height: 100vh; padding-bottom: 80px;
}
a { text-decoration: none; color: inherit; }
input, select, textarea, button { font-family: inherit; }

/* 组件 */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 16px; border-radius: var(--radius-sm); background: var(--primary);
  color: white; font-weight: 500; cursor: pointer; border: none; width: 100%;
  transition: 0.2s; font-size: 15px;
}
.btn:hover { background: var(--primary-hover); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text-primary); }
.btn-outline:hover { background: var(--bg-page); }

.card { background: var(--bg-card); border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow); margin-bottom: 16px; }
.tag {
  display: inline-block; padding: 4px 10px; border-radius: 4px; font-size: 12px; font-weight: 600; color: white;
}
.tag.pending { background: var(--status-pending); }
.tag.inspection { background: var(--status-inspection); }
.tag.washing { background: var(--status-washing); }
.tag.ready { background: var(--status-ready); }
.tag.completed { background: var(--status-completed); }
.tag.exception { background: var(--status-exception); }

.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 500; font-size: 14px; color: var(--text-secondary); }
.form-input, .form-select, .form-textarea {
  width: 100%; padding: 12px; border: 1px solid var(--border); border-radius: var(--radius-sm);
  font-size: 16px; background: var(--bg-card); transition: 0.2s;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1);
}

.header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.logo { font-size: 20px; font-weight: 700; color: var(--primary); }
.role-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.role-card { text-align: center; cursor: pointer; border: 2px solid transparent; transition: 0.2s; }
.role-card:hover { border-color: var(--primary); background: var(--bg-page); }
.role-icon { font-size: 32px; margin-bottom: 8px; display: block; }

.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    z-index: 100;
}

.bottom-nav .nav-item {
    flex: 1;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    color: var(--text-secondary);
    cursor: pointer;
}
.nav-item.active {
    color: var(--primary);
    font-weight: 500;
}

.bottom-nav .nav-icon {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    line-height: 1;
}

.offline-banner { background: #F59E0B; color: white; text-align: center; padding: 6px; font-size: 13px; display: none; margin-bottom: 12px; border-radius: 6px; }
.offline-banner.show { display: block; }

.nav-lang-btn {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    padding: 0;
    margin: 0;
    border-radius: 0;
}
.nav-lang-btn svg {
    width: 8px;
    height: 8px;
    display: block;
}
.nav-lang-btn:hover {
    background: var(--bg-tertiary);
}

.lang-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}
.lang-btn:hover {
    border-color: var(--primary);
    background: var(--primary-light);
    color: var(--primary);
    box-shadow: 0 2px 8px rgba(6, 182, 212, 0.15);
}

.lang-dropdown {
    position: absolute;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.12), 0 2px 6px rgba(0,0,0,0.08);
    min-width: 180px;
    z-index: 1000;
    overflow: hidden;
    backdrop-filter: blur(8px);
}

.lang-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 10px 14px;
    background: none;
    border: none;
    cursor: pointer;
    transition: all 0.15s ease;
    text-align: left;
}
.lang-option:hover {
    background: var(--bg-page);
}
.lang-option.active {
    background: var(--primary-light);
    color: var(--primary);
}
.lang-option:not(:last-child) {
    border-bottom: 1px solid var(--border);
}

.lang-flag {
    font-size: 18px;
    margin-right: 10px;
}
.lang-name {
    flex: 1;
    font-size: 14px;
    font-weight: 500;
}
.lang-code {
    font-size: 11px;
    padding: 2px 6px;
    background: var(--bg-tertiary, #F1F5F9);
    border-radius: 4px;
    color: var(--text-secondary);
    font-weight: 600;
}
.lang-option.active .lang-code {
    background: var(--primary);
    color: white;
}

.bottom-nav .nav-label {
    font-size: 12px;
    color: var(--text-secondary, #6b7280);
}
.bottom-nav .nav-item.active .nav-label {
    color: var(--primary, #2563eb);
}