body {
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
    margin: 0 auto;
    -background-color: #F7FAFC;
}

.header {
    display: flex;
    justify-content: center;
    align-items: center;
}

.header a {
    text-decoration: none;
}

.header h1 {
    margin: 0;
    color: #4A5568;
}

.user-info {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    align-items: center;
    font-size: 14px;
    margin-bottom: 10px;
}

.user-info span {
    color: #4A5568;
}

.admin-link, .logout-button {
    padding: 5px 10px;
    background-color: #A3BFFA;
    color: white;
    border-radius: 4px;
    text-decoration: none;
    transition: background-color 0.3s;
}

.admin-link:hover, .logout-button:hover {
    background-color: #7F9CF5;
}

.form-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.main-grid {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.cargo-section {
    flex: 1;
    min-width: 600px;
}

.shipping-section {
    flex: 0.8;
    -max-width: 300px;
    min-width: 300px;
}

.form-section {
    padding: 10px;
    border: 1px solid #CBD5E0;
    border-radius: 4px;
    background-color: #FFFFFF;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.form-section h2 {
    margin-top: 0;
    color: #4A5568;
    font-size: 18px;
    border-bottom: 1px solid #CBD5E0;
    padding-bottom: 10px;
}

.shipping-header {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 5px;
    align-items: center;
}

.shipping-header select {
    flex: 1;
    min-width: 200px;
}

.shipping-grid {
    display: flex;
    flex-direction: column;
}

.form-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.form-row label {
    width: 100px;
    font-weight: bold;
    color: #4A5568;
    font-size: 15px;
}

.form-row input, .form-row select {
    flex: 1;
}

.address-parse {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 15px;
}

.address-parse label {
    width: 150px;
    font-weight: bold;
    color: #4A5568;
}

.address-parse input {
    flex: 1;
}

.offer-item {
    border: 1px solid #CBD5E0;
    padding: 15px;
    margin-bottom: 15px;
    border-radius: 4px;
}

.offer-header {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 15px;
    background-color: #FFFFFF;
    padding: 10px;
    border-radius: 4px;
}

.url-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.url-group label {
    width: 120px;
    font-weight: bold;
    color: #4A5568;
}

.url-group input {
    flex: 1;
}

.offer-id-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.offer-id-group label {
    width: 120px;
    font-weight: bold;
    color: #4A5568;
}

.offer-id-input {
    max-width: 150px;
}

.cargo-buttons {
    display: flex;
    gap: 10px;
    justify-content: flex-start;
    margin-top: 10px;
}

.spec-container {
    margin-top: 10px;
}

.spec-item {
    border-top: 1px solid #CBD5E0;
    padding: 15px 0;
    margin-bottom: 10px;
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.cargo-item-top {
    flex: 1;
    display: flex;
    justify-content: space-between;
}

.cargo-item-left {
    flex: 0 0 150px;
    text-align: center;
}

.cargo-item-right {
    flex: 1;
}

.cargo-item-right label {
    white-space: nowrap;
}

.sku-image-container {
    margin-bottom: 10px;
}

.sku-image {
    width: 125px;
    height: 125px;
    border: 1px solid #CBD5E0;
    border-radius: 4px;
    vertical-align: middle;
    background-color: #FFFFFF;
}

.quantity-group {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.quantity-group label {
    width: 150px;
    font-weight: bold;
    color: #4A5568;
}

.quantity-input {
    max-width: 100px;
}

.unit-price, .subtotal {
    font-weight: bold;
    color: #4A5568;
    white-space: nowrap;
}

.item-info-group {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-top: 10px;
}

.item-info {
    flex: 1;
}

.item-info span {
    font-size: 14px;
    color: #4A5568;
    display: inline-block;
    margin-right: 20px;
}

.button-group {
    flex: 0 0 auto;
    display: flex;
    gap: 10px;
}

.cargo-item_input {
    width: 100%;
    padding: 8px;
    margin: 5px 0;
    border: 1px solid #CBD5E0;
    border-radius: 4px;
    box-sizing: border-box;
    font-size: 14px;
    background-color: #FFFFFF;
}

.cargo-item_input:focus {
    border-color: #A3BFFA;
    outline: none;
}

.cargo-item_input[readonly] {
    background-color: #F7FAFC;
    cursor: not-allowed;
}

.small-input {
    padding: 6px;
    font-size: 12px;
}

.search-btn, .delete-offer-btn, .delete-spec-btn, .add-spec-btn, .add-button, .save-button, .submit_button, .accordion-toggle {
    padding: 8px 12px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: bold;
    transition: background-color 0.3s;
    background-color: #A3BFFA;
    color: white;
}

.search-btn:hover, .add-spec-btn:hover, .add-button:hover, .save-button:hover, .submit_button:hover, .accordion-toggle:hover {
    background-color: #7F9CF5;
}

.delete-offer-btn, .delete-spec-btn {
    background-color: #E53E3E;
}

.delete-offer-btn:hover, .delete-spec-btn:hover {
    background-color: #C53030;
}

.submit_button {
    width: 100%;
    padding: 12px;
    margin-top: 10px;
    font-size: 16px;
    background-color: green;
}

.accordion-toggle {
    background-color: #CBD5E0;
    color: #4A5568;
    width: 100%;
    text-align: left;
    margin-bottom: 10px;
}

.accordion-content {
    padding: 15px;
    border: 1px solid #CBD5E0;
    border-radius: 4px;
    background-color: #FFFFFF;
}

.accordion-content h3 {
    margin-top: 0;
    color: #4A5568;
    border-bottom: 1px solid #CBD5E0;
    padding-bottom: 5px;
    font-size: 14px;
}

.info-transaction-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.invoice-section, .transaction-section {
    flex: 1;
    min-width: 300px;
    max-width: 100%;
    border: 1px solid #CBD5E0;
    padding: 10px;
    border-radius: 4px;
    background-color: #FFFFFF;
}

.invoice-grid, .transaction-grid {
    display: grid;
    grid-template-columns: repeat(3, auto 1fr);
    gap: 10px 15px;
    margin-top: 5px;
    font-size: 12px;
}

.invoice-grid label, .transaction-grid label {
    font-weight: bold;
    color: #4A5568;
    white-space: nowrap;
}

.invoice-grid select, .invoice-grid input, .transaction-grid select, .transaction-grid input, .transaction-grid textarea {
    width: 100%;
}

textarea.cargo-item_input {
    min-height: 60px;
    resize: vertical;
}

.lang-switcher {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 10px;
    background-color: #FFFFFF;
    border: 1px solid #CBD5E0;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.lang-btn {
    padding: 8px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    background-color: #CBD5E0;
    color: #4A5568;
    transition: background-color 0.3s;
}

.lang-btn:hover {
    background-color: #7F9CF5;
}

.lang-btn.active {
    background-color: #A3BFFA;
    color: white;
}

.host-info {
    display: flex;
    justify-content: flex-end;
    font-size: 12px;
    color: #4A5568;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .main-grid {
        flex-direction: column;
    }
    
    .cargo-section, .shipping-section {
        min-width: auto;
    }
    
    .shipping-grid, .invoice-grid, .transaction-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        flex-direction: column;
        align-items: stretch;
    }
    
    .form-row label {
        width: auto;
    }
    
    .offer-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .url-group, .offer-id-group {
        flex-direction: column;
        align-items: stretch;
    }
    
    .offer-id-input {
        max-width: none;
    }
    
    .cargo-buttons {
        flex-direction: column;
    }
    
    .quantity-group {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .quantity-input {
        max-width: none;
    }
    
    .spec-item {
        flex-direction: column;
    }
    
    .item-info-group {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .item-info {
        width: 100%;
    }
    
    .button-group {
        flex-direction: row;
        justify-content: flex-start;
        width: 100%;
    }
    
    .info-transaction-container {
        flex-direction: column;
    }
    
    .invoice-section, .transaction-section {
        max-width: none;
    }
    
    .lang-switcher {
        position: static;
        margin: 20px 0;
        flex-direction: row;
        justify-content: center;
    }
    .price small {
	    font-size: 0.8em;
	    vertical-align: baseline;
	    position: relative;
	    top: -0.1em; /* 少し上にずらす */
	}
}