.sol-pro{
--sol-bg:#f3f6fb;
--sol-card:#ffffff;
--sol-text:#111827;
--sol-sub:#6b7280;
--sol-border:#dbe3ee;
--sol-accent:#f59e0b;
--sol-dark:#111827;
--sol-radius:24px;
--sol-radius-small:18px;

font-family:Inter,sans-serif;
background:var(--sol-bg);
padding:24px;
border-radius:28px;
overflow:hidden;
margin:24px 0;
}

.sol-pro *,
.sol-pro *:before,
.sol-pro *:after{
box-sizing:border-box;
}





.sol-wrap{
max-width:1200px;
margin:auto;
}





.sol-pro img,
.sol-pro svg{
max-width:100%;
height:auto;
display:block;
}





.sol-title{
font-size:42px;
font-weight:800;
line-height:1.1;
color:var(--sol-text);
margin-bottom:10px;
}

.sol-subtitle{
font-size:16px;
line-height:1.6;
color:var(--sol-sub);
margin-bottom:28px;
}





.sol-top{
display:grid;
grid-template-columns:1fr 1fr;
gap:20px;
align-items:center;
margin-bottom:24px;
}

.sol-visual,
.sol-formula-box{
background:var(--sol-card);
padding:22px;
border-radius:var(--sol-radius);
overflow:hidden;
}

.sol-visual svg{
width:100%;
height:auto;
}





.sol-formula-title{
font-size:18px;
font-weight:700;
margin-bottom:12px;
color:var(--sol-sub);
}

.sol-formula{
font-size:38px;
font-weight:900;
line-height:1.2;
margin-bottom:14px;
color:var(--sol-text);
word-break:break-word;
}

.sol-formula-sub{
font-size:20px;
font-weight:700;
line-height:1.5;
color:#374151;
word-break:break-word;
margin-top:10px;
}





.sol-grid{
display:grid;
grid-template-columns:repeat(3,1fr);
gap:14px;
margin-bottom:20px;
}

.sol-field label{
display:block;
font-size:14px;
font-weight:700;
margin-bottom:7px;
color:var(--sol-text);
}

.sol-field input,
.sol-field select,
.sol-field textarea{
width:100%;
height:54px;
padding:0 15px;
border:1px solid var(--sol-border);
border-radius:14px;
background:#fff;
font-size:15px;
outline:none;
transition:.2s;
}

.sol-field textarea{
height:120px;
padding:15px;
resize:vertical;
}

.sol-field input:focus,
.sol-field select:focus,
.sol-field textarea:focus{
border-color:var(--sol-accent);
}

.sol-input-wrap{
display:flex;
align-items:center;
gap:10px;
}

.sol-input-wrap span{
font-size:15px;
font-weight:700;
color:var(--sol-sub);
white-space:nowrap;
}





.sol-btn{
width:100%;
height:62px;
border:none;
border-radius:18px;
background:var(--sol-accent);
color:#fff;
font-size:20px;
font-weight:800;
cursor:pointer;
transition:.2s;
}

.sol-btn:hover{
transform:translateY(-1px);
opacity:.95;
}





.sol-result{
margin-top:24px;
background:var(--sol-card);
padding:22px;
border-radius:var(--sol-radius);
overflow:hidden;
}

.sol-main-result{
text-align:center;
margin-bottom:20px;
}

.sol-main-label{
font-size:16px;
font-weight:700;
color:var(--sol-sub);
margin-bottom:8px;
}

.sol-main-value{
font-size:54px;
font-weight:900;
line-height:1;
word-break:break-word;
color:var(--sol-text);
}





.sol-cards{
display:grid;
grid-template-columns:
repeat(auto-fit,minmax(170px,1fr));
gap:12px;
}

.sol-card{
background:#f8fafc;
padding:16px;
border-radius:18px;
min-height:110px;
display:flex;
flex-direction:column;
justify-content:space-between;
overflow:hidden;
}

.sol-card-title{
font-size:13px;
font-weight:700;
line-height:1.4;
color:var(--sol-sub);
margin-bottom:10px;
}

.sol-card-value{
font-size:18px;
font-weight:800;
line-height:1.3;
word-break:break-word;
color:var(--sol-text);
}





.sol-solution{
margin-top:24px;
background:var(--sol-card);
padding:22px;
border-radius:var(--sol-radius);
overflow:hidden;
}

.sol-solution h2{
font-size:28px;
font-weight:800;
margin-bottom:18px;
color:var(--sol-text);
}

.sol-solution-content{
font-size:18px;
line-height:2;
white-space:pre-line;
background:#f8fafc;
padding:18px;
border-radius:18px;
overflow:auto;
color:var(--sol-text);
}

.sol-copy-btn{
margin-top:16px;
height:50px;
padding:0 24px;
border:none;
border-radius:14px;
background:var(--sol-dark);
color:#fff;
font-size:15px;
font-weight:700;
cursor:pointer;
transition:.2s;
}

.sol-copy-btn:hover{
opacity:.9;
}





.sol-seo-text{
margin-top:40px;
font-size:18px;
line-height:1.8;
color:var(--sol-text);
}

.sol-seo-text h2{
font-size:32px;
font-weight:800;
margin:42px 0 18px;
line-height:1.2;
}

.sol-seo-text h3{
font-size:24px;
font-weight:800;
margin:30px 0 14px;
line-height:1.3;
}

.sol-seo-text p{
margin-bottom:18px;
}

.sol-seo-text ul{
padding-left:22px;
margin-bottom:24px;
}

.sol-seo-text li{
margin-bottom:10px;
}

.sol-seo-formula{
font-size:30px;
font-weight:900;
line-height:1.4;
margin:22px 0;
padding:20px;
background:#f8fafc;
border-radius:18px;
overflow:auto;
}





.sol-faq-item{
background:#f8fafc;
padding:20px;
border-radius:18px;
margin-top:18px;
}





.breadcrumbs{
display:flex;
flex-wrap:wrap;
gap:8px;
margin-bottom:24px;
font-size:14px;
line-height:1.5;
}

.breadcrumbs a{
text-decoration:none;
color:var(--sol-sub);
transition:.2s;
}

.breadcrumbs a:hover{
color:var(--sol-accent);
}





@media(max-width:992px){

.sol-top{
grid-template-columns:1fr;
}

.sol-grid{
grid-template-columns:1fr 1fr;
}

}





@media(max-width:768px){

.sol-pro{
padding:16px;
border-radius:22px;
}

.sol-title{
font-size:30px;
}

.sol-grid{
grid-template-columns:1fr;
}

.sol-main-value{
font-size:40px;
}

.sol-cards{
grid-template-columns:1fr 1fr;
}

.sol-formula{
font-size:28px;
}

.sol-formula-sub{
font-size:17px;
}

.sol-solution-content{
font-size:16px;
}

.sol-seo-text{
font-size:16px;
}

.sol-seo-text h2{
font-size:26px;
}

.sol-seo-formula{
font-size:24px;
}

}





@media(max-width:520px){

.sol-cards{
grid-template-columns:1fr;
}

.sol-title{
font-size:26px;
}

.sol-main-value{
font-size:34px;
}

.sol-formula{
font-size:22px;
}

.sol-formula-sub{
font-size:15px;
}

.sol-seo-formula{
font-size:20px;
padding:16px;
}

.sol-btn{
height:58px;
font-size:18px;
}

}