.calculator-section.stl-a {
    background: var(--sol-shop-pet-grooming-supplies-wholesale-bg-light);
    padding: 60px 40px;
    border-radius: 16px;
    margin: 40px 0;
    border: 1px solid var(--sol-shop-pet-grooming-supplies-wholesale-border-color);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
}

.calculator-section.stl-a .calc-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px; /* Increased gap for a more spacious, elegant feel */
    align-items: start;
    margin: 20px 0;
}

/* Left Side: Inputs */
.calculator-section.stl-a .calc-inputs h2 {
    color: var(--sol-shop-pet-grooming-supplies-wholesale-brand-blue);
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.calculator-section.stl-a .calc-inputs p {
    color: var(--sol-shop-pet-grooming-supplies-wholesale-text-muted);
    margin-bottom: 30px;
    font-size: 0.95rem;
}

.calculator-section.stl-a .input-group {
    margin-bottom: 25px;
}

.calculator-section.stl-a .input-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--sol-shop-pet-grooming-supplies-wholesale-text-dark);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.calculator-section.stl-a .input-group input {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid #d1dbe5;
    border-radius: 8px;
    font-size: 1.1rem;
    color: var(--sol-shop-pet-grooming-supplies-wholesale-text-dark);
    background: var(--sol-shop-pet-grooming-supplies-wholesale-bg-white);
    transition: var(--sol-shop-pet-grooming-supplies-wholesale-transition);
}

.calculator-section.stl-a .input-group input:focus {
    outline: none;
    border-color: var(--sol-shop-pet-grooming-supplies-wholesale-brand-blue);
    box-shadow: 0 0 0 3px rgba(26, 74, 142, 0.1);
}

/* Right Side: Results (The "淡雅" Adjustment) */
.calculator-section.stl-a .results-card {
    background: #ffffff; /* White background for elegance */
    color: var(--sol-shop-pet-grooming-supplies-wholesale-text-dark);
    padding: 40px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    /* Subtle soft shadow instead of heavy blue */
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

/* Subtle accent line at the top of the card */
.calculator-section.stl-a .results-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--sol-shop-pet-grooming-supplies-wholesale-brand-blue), var(--sol-shop-pet-grooming-supplies-wholesale-accent-gold));
}

.calculator-section.stl-a .results-card .estimated {
    color: var(--sol-shop-pet-grooming-supplies-wholesale-brand-blue);
    margin-bottom: 30px;
    font-size: 1.4rem;
    text-align: center;
}
.calculator-section.stl-a .results-card p.tip{
    font-size: 0.8rem;
    margin-top: 20px;
    opacity: 0.8;
}

.calculator-section.stl-a .result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid #f1f5f9;
}

.calculator-section.stl-a .result-item:last-of-type {
    border-bottom: none;
    margin-bottom: 10px;
}

.calculator-section.stl-a .result-item span:first-child {
    color: var(--sol-shop-pet-grooming-supplies-wholesale-text-muted);
    font-weight: 500;
}

.calculator-section.stl-a .result-value {
    font-weight: 700;
    color: var(--sol-shop-pet-grooming-supplies-wholesale-accent-gold);
    font-size: 1.4rem;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

.calculator-section.stl-a .results-card p {
    font-size: 0.8rem;
    margin-top: 25px;
    color: var(--sol-shop-pet-grooming-supplies-wholesale-text-muted);
    text-align: center;
    font-style: italic;
    line-height: 1.4;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .calculator-section.stl-a .calc-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .calculator-section.stl-a {
        padding: 30px 20px;
    }
}

/* --- 计算器专属样式 --- */
.calculator-section.stl-b {
    padding: var(--bulk-dog-toys-section-padding);
    background-color: #fff;
}

.calculator-section.stl-b .calc-container {
    background: var(--bulk-dog-toys-dark);
    color: #fff;
    padding: 60px;
    border-radius: 4px;
    box-shadow: 20px 20px 0px var(--bulk-dog-toys-accent);
}

.calculator-section.stl-b .calc-header {
    margin-bottom: 40px;
}

.calculator-section.stl-b .calc-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
}

/* 输入控件 */
.calculator-section.stl-b .input-group {
    margin-bottom: 25px;
}

.calculator-section.stl-b .input-group label {
    display: block;
    text-transform: uppercase;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--bulk-dog-toys-text-gray);
    margin-bottom: 10px;
}

.calculator-section.stl-b .input-group input {
    width: 100%;
    background: #222;
    border: 1px solid #444;
    padding: 15px;
    color: #fff;
    font-size: 1.2rem;
    font-family: inherit;
}

.calculator-section.stl-b .input-group input:focus {
    outline: none;
    border-color: var(--bulk-dog-toys-accent);
}

.calculator-section.stl-b .input-group small {
    color: #555;
    font-size: 0.75rem;
    margin-top: 5px;
    display: block;
}

/* 结果展示 */
.calculator-section.stl-b .result-card {
    background: #1a1a1a;
    padding: 30px;
    border: 1px solid #333;
}

.calculator-section.stl-b .result-card.primary {
    margin-bottom: 20px;
    border-left: 5px solid var(--bulk-dog-toys-accent);
}

.calculator-section.stl-b .res-label {
    display: block;
    font-size: 0.8rem;
    color: var(--bulk-dog-toys-text-gray);
    text-transform: uppercase;
    margin-bottom: 5px;
}

.calculator-section.stl-b .res-value {
    font-size: 2.5rem;
    font-weight: 800;
}

.calculator-section.stl-b .result-sub-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.calculator-section.stl-b .result-sub-grid .res-value {
    font-size: 1.5rem;
}

.calculator-section.stl-b .calc-footer {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #333;
    font-size: 0.9rem;
}

.calculator-section.stl-b .calc-footer a {
    color: var(--bulk-dog-toys-accent);
    text-decoration: none;
    font-weight: bold;
}

@media (max-width: 968px) {
    .calculator-section.stl-b .calc-grid { grid-template-columns: 1fr; }
    .calculator-section.stl-b .result-sub-grid { grid-template-columns: 1fr; }
}