* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 520px;
    margin: 0 auto;
    padding: 0 16px;
}

.header {
    text-align: center;
    padding: 30px 20px 20px;
}
.header h1 {
    font-size: 22px;
    font-weight: 500;
    color: #333;
}
.header p {
    font-size: 13px;
    color: #999;
    margin-top: 6px;
}

.order-form {
    background: #fff;
    border-radius: 12px;
    padding: 24px 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

/* Section titles */
.section-title {
    font-size: 15px;
    font-weight: 600;
    color: #333;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.section-title .badge {
    font-size: 11px;
    background: #07C160;
    color: #fff;
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 400;
}

/* Product row */
.product-row {
    border: 1px solid #e8e8e8;
    border-radius: 10px;
    padding: 14px 14px 8px;
    margin-bottom: 12px;
    background: #fafbfc;
}
.product-row-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    font-size: 13px;
    color: #888;
    font-weight: 500;
}
.btn-remove {
    background: none;
    border: none;
    color: #e74c3c;
    font-size: 13px;
    cursor: pointer;
    padding: 2px 6px;
}
.btn-remove:hover { text-decoration: underline; }

.btn-add-row {
    display: block;
    width: 100%;
    padding: 10px;
    border: 1px dashed #07C160;
    background: #f0fdf4;
    color: #07C160;
    font-size: 14px;
    border-radius: 8px;
    cursor: pointer;
    margin-bottom: 12px;
}
.btn-add-row:hover { background: #e6f9ed; }

/* Total bar */
.total-bar {
    text-align: right;
    padding: 12px 0;
    margin-bottom: 4px;
}
.total-label { font-size: 14px; color: #666; }
.total-amount {
    font-size: 22px;
    font-weight: 700;
    color: #e74c3c;
}

.divider {
    border: none;
    border-top: 1px solid #f0f0f0;
    margin: 16px 0;
}

/* Form groups */
.form-group {
    margin-bottom: 14px;
}
.form-group label {
    display: block;
    font-size: 13px;
    color: #555;
    margin-bottom: 4px;
    font-weight: 500;
}
.form-group .required { color: #e74c3c; }

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    color: #333;
    background: #fafafa;
    transition: border-color 0.2s;
    font-family: inherit;
}
.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M6 8L1 3h10z' fill='%23999'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}
.form-group select:disabled {
    background: #f0f0f0;
    color: #aaa;
    cursor: not-allowed;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #07C160;
    background: #fff;
}
.form-group textarea { resize: vertical; }
.form-group input[readonly] {
    background: #f5f5f5;
    color: #666;
}

/* Field hint */
.field-hint {
    font-size: 12px;
    margin-top: 2px;
    display: block;
}
.field-hint.error { color: #e74c3c; }
.field-hint.ok { color: #07C160; }

/* Form row layout */
.form-row {
    display: flex;
    gap: 10px;
}
.form-row.cols-2 .form-group { flex: 1; }
.form-row.cols-3 .form-group { flex: 1; }

/* Error box */
.error-box {
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 16px;
    font-size: 13px;
    color: #dc2626;
    line-height: 1.8;
}

/* Submit button */
.btn-submit {
    width: 100%;
    padding: 14px;
    background: #07C160;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}
.btn-submit:hover { background: #06ad56; }
.btn-submit:disabled { background: #a0ecc0; cursor: not-allowed; }

/* Payment page */
.payment-box {
    background: #fff;
    border-radius: 12px;
    padding: 24px 20px;
    text-align: center;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
.wx-logo { margin-bottom: 16px; }
.qrcode-container {
    width: 210px; height: 210px;
    margin: 20px auto;
    display: flex;
    align-items: center; justify-content: center;
    background: #f9f9f9; border-radius: 8px;
}
.qrcode-container img { display: block; }
.pay-info {
    text-align: left;
    padding: 16px 0;
    border-top: 1px solid #f0f0f0;
    border-bottom: 1px solid #f0f0f0;
    margin: 16px 0;
}
.pay-info ul { list-style: none; }
.pay-info li { padding: 6px 0; font-size: 14px; color: #666; }
.pay-info li span { color: #999; display: inline-block; width: 80px; }
.pay-amount { font-size: 20px; color: #ea4939; font-weight: 500; }
.pay-merchant { color: #ea4939; }
.pay-result { padding: 12px; font-size: 14px; color: #07C160; }
.pay-tips { margin-top: 16px; font-size: 12px; color: #999; line-height: 1.8; }

/* Success page */
.success-box {
    background: #fff;
    border-radius: 12px;
    padding: 30px 20px;
    text-align: center;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
.success-icon { margin-bottom: 16px; }
.success-title { font-size: 22px; font-weight: 500; color: #07C160; margin-bottom: 24px; }
.success-info {
    text-align: left;
    padding: 16px 0;
    border-top: 1px solid #f0f0f0;
    border-bottom: 1px solid #f0f0f0;
    margin-bottom: 24px;
}
.info-row { padding: 8px 0; font-size: 14px; color: #666; }
.info-row span { color: #999; }
.info-row strong { color: #07C160; font-size: 18px; }
.btn-ok {
    display: inline-block;
    padding: 12px 60px;
    background: #07C160; color: #fff;
    text-decoration: none; border-radius: 8px;
    font-size: 15px; font-weight: 500;
    transition: background 0.2s;
}
.btn-ok:hover { background: #06ad56; }

.footer {
    text-align: center;
    padding: 30px 20px;
    font-size: 12px;
    color: #aaa;
}

@media (max-width: 400px) {
    .form-row { flex-direction: column; gap: 0; }
    .form-row.cols-2 .form-group,
    .form-row.cols-3 .form-group { flex: auto; }
}