.gsvc{background:var(--cbg,#f6f8fc);color:#183049;padding:0 0 52px}.gsvc *{box-sizing:border-box}.gsvc-wrap{max-width:1180px;padding:32px 28px;margin:auto}.gsvc-heading{padding:0 0 28px}.gsvc h1{font-size:clamp(28px,3vw,40px);line-height:1.18;margin:0 0 16px;letter-spacing:-.02em}.gsvc-heading>p{font-size:17px;line-height:1.65;max-width:780px;color:#52677f}.gsvc h2{font-size:23px;line-height:1.35;margin:0 0 16px}.gsvc h3{font-size:18px;line-height:1.4}.gsvc p{line-height:1.75;margin:0 0 14px}.gsvc a{color:var(--accent,#3155ca);text-underline-offset:3px}.gsvc-layout{display:grid;grid-template-columns:264px minmax(0,1fr);gap:28px;align-items:start}.gsvc-menu{position:sticky;top:130px;background:#fff;padding:22px;border:1px solid #dce3ed;border-radius:16px;display:grid;gap:6px}.gsvc-menu b{margin-bottom:8px}.gsvc-menu a{padding:9px 10px;border-radius:8px;text-decoration:none;font-size:14px}.gsvc-menu a[aria-current=page]{background:var(--tint,#eef3ff);font-weight:700}.gsvc article{min-width:0}.gsvc .s{background:#fff;border:1px solid #dce3ed;border-radius:16px;padding:26px;margin-bottom:18px}.gsvc .s .wrap{padding:0;max-width:none}.gsvc .muted{color:#415771}.gsvc-intro{padding:0 0 8px;color:#52677f}.gsvc .grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.gsvc .card{padding:0;border:0;background:none}.gsvc .card__i{color:var(--accent);font-weight:800;font-size:24px;margin-bottom:12px}.gsvc .card h3{margin:0 0 10px}.gsvc .card p{font-size:14px}.gsvc .cta-block{background:var(--accent,#3155ca);color:#fff;border-radius:18px;padding:30px;margin-top:28px}.gsvc .cta-block h2,.gsvc .cta-block p{color:#fff}.gsvc .cta-block label{display:block;font-weight:700;font-size:14px;margin:20px 0 10px}.gsvc textarea{display:block;width:100%;resize:vertical;min-height:135px;padding:14px;border:1px solid #dce3ed;border-radius:10px;font:inherit;line-height:1.6;background:white;color:#183049}.gsvc-actions{display:flex;flex-wrap:wrap;gap:12px;margin:16px 0 8px}.gsvc .btn-white,.gsvc button[data-service-copy]{display:inline-flex;align-items:center;justify-content:center;background:#fff;color:var(--accent);border:1px solid #fff;border-radius:10px;padding:13px 18px;font:700 14px/1.4 inherit;text-decoration:none;cursor:pointer}.gsvc button[data-service-copy]{background:transparent;color:white}.gsvc [data-service-status]{font-size:14px}.gsvc a:focus-visible,.gsvc button:focus-visible,.gsvc summary:focus-visible{outline:3px solid #efb842;outline-offset:3px}
.gsvc .faq-quick{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:0 0 28px}.gsvc .faq-quick__item{display:flex;flex-direction:column;gap:8px;padding:22px;border:1px solid #dce3ed;border-radius:14px;background:#fff;color:#183049;text-decoration:none}.gsvc .faq-quick__item span{font-size:14px;color:#52677f}.gsvc .faq-quick__item--go{background:linear-gradient(120deg,var(--accent),var(--accent2,var(--accent)));color:#fff;border-color:transparent}.gsvc .faq-quick__item--go span{color:#fff}.gsvc .faq-layout{display:grid;grid-template-columns:264px minmax(0,1fr);gap:28px;align-items:start}.gsvc .faq-menu{position:sticky;top:130px;border:1px solid #dce3ed;background:#fff;border-radius:16px;padding:22px}.gsvc .faq-menu__label{font-weight:700;margin-bottom:12px}.gsvc .faq-menu__nav{display:grid;gap:6px}.gsvc .faq-menu__nav a{padding:11px 10px;text-decoration:none;border-radius:8px;font-size:14px}.gsvc .faq-menu__nav [aria-current=page]{background:var(--tint);font-weight:700}.gsvc .faq-side{border-top:1px solid #dce3ed;margin-top:20px;padding-top:20px;display:grid;gap:12px}.gsvc .faq-side span{font-size:14px;line-height:1.6;color:#52677f}.gsvc .faq-side__cta{font-size:14px;font-weight:700}.gsvc .faq-content{min-width:0}.gsvc .faq-intro{color:#52677f;margin:0 0 24px}.gsvc h2.faq-group{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin:26px 0 14px}.gsvc .faq-group a{font-size:14px;font-weight:500;white-space:nowrap}.gsvc .faq{display:grid;gap:10px}.gsvc .faq details{background:#fff;border:1px solid #dce3ed;border-radius:12px;overflow:hidden}.gsvc .faq summary{position:relative;list-style:none;cursor:pointer;padding:18px 48px 18px 20px}.gsvc .faq summary::-webkit-details-marker{display:none}.gsvc .faq summary:after{content:'+';position:absolute;right:20px;top:17px;color:var(--accent);font-size:22px}.gsvc .faq details[open] summary:after{content:'−'}.gsvc .faq__q{margin:0;font-size:16px;font-weight:700;line-height:1.5}.gsvc .faq details p{padding:0 20px 20px;margin:0;font-size:15px;color:#415771}
@media(max-width:900px){.gsvc-layout,.gsvc .faq-layout{grid-template-columns:1fr}.gsvc-menu,.gsvc .faq-menu{position:static}.gsvc-menu{grid-template-columns:repeat(3,minmax(0,1fr))}.gsvc-menu>b{grid-column:1/-1}.gsvc .faq-menu__nav{grid-template-columns:repeat(3,minmax(0,1fr))}.gsvc .faq-side{display:none}.gsvc .grid{grid-template-columns:1fr}.gsvc .card{border-bottom:1px solid #dce3ed;padding-bottom:10px}}
@media(max-width:600px){.gsvc-wrap{padding:24px 18px}.gsvc .faq-quick{grid-template-columns:1fr;gap:10px}.gsvc .faq-quick__item{padding:16px}.gsvc .faq-menu__nav,.gsvc-menu{grid-template-columns:1fr 1fr}.gsvc .s,.gsvc .cta-block{padding:20px}.gsvc .faq-menu{padding:16px}.gsvc h2{font-size:21px}.gsvc .faq__q{font-size:15px}.gsvc-actions{flex-direction:column}.gsvc a,.gsvc p{overflow-wrap:anywhere}}
/* SHARED FOOTER */
.gsvc-footer{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px;padding:30px 0;border-top:1px solid #dce3ed;margin-top:28px}.gsvc-footer h4{font-size:14px;margin:0 0 14px}.gsvc-footer a{display:block;font-size:14px;line-height:1.5;margin:0 0 9px;color:inherit;text-decoration:none;overflow-wrap:anywhere}.gsvc-footer a:hover{text-decoration:underline}.gsvc-footer a:focus-visible{outline:2px solid var(--accent);outline-offset:3px}@media(max-width:760px){.gsvc-footer{grid-template-columns:1fr 1fr;gap:22px}}@media(max-width:360px){.gsvc-footer{gap:14px}.gsvc-footer a{font-size:13px}}

/* service-pages polish: 2026-09-09 */
.gsvc{background:linear-gradient(180deg,#f7f9ff 0%,#f1f5fd 100%);padding:0 0 72px}
.gsvc-wrap{max-width:1240px;padding:42px 32px;margin:auto}
.gsvc-heading{position:relative;padding:28px 34px 30px;margin:0 0 28px;border:1px solid #dfe7f5;border-radius:22px;background:linear-gradient(135deg,#fff 0%,#f5f8ff 100%);box-shadow:0 12px 34px rgba(31,57,105,.07)}
.gsvc-heading:before{content:'ГДЗ · учебники · помощь';display:inline-flex;margin:0 0 14px;padding:6px 10px;border-radius:999px;background:var(--tint,#eef3ff);color:var(--accent,#3155ca);font-size:12px;font-weight:800;letter-spacing:.05em;text-transform:uppercase}
.gsvc h1{font-size:clamp(30px,3.6vw,48px);line-height:1.08;margin:0 0 14px;letter-spacing:-.035em;color:#142b4a}
.gsvc-heading>p{font-size:18px;line-height:1.65;max-width:820px;color:#536b87;margin:0}
.gsvc-layout{grid-template-columns:276px minmax(0,1fr);gap:32px}
.gsvc-menu,.gsvc .faq-menu{top:112px;border-color:#d9e3f2;box-shadow:0 12px 26px rgba(31,57,105,.06);padding:24px}
.gsvc-menu b,.gsvc .faq-menu__label{font-size:15px;color:#173253}
.gsvc-menu a,.gsvc .faq-menu__nav a{padding:11px 12px;font-size:14px;transition:background .18s ease,color .18s ease,transform .18s ease}
.gsvc-menu a:hover,.gsvc .faq-menu__nav a:hover{background:var(--tint,#eef3ff);transform:translateX(2px)}
.gsvc .s{border-color:#d9e3f2;border-radius:18px;padding:30px;box-shadow:0 10px 28px rgba(31,57,105,.045);transition:box-shadow .2s ease,transform .2s ease}
.gsvc .s:hover{box-shadow:0 16px 34px rgba(31,57,105,.08);transform:translateY(-1px)}
.gsvc .s h2{font-size:clamp(21px,2.2vw,28px);color:#173253}
.gsvc .s h3{color:#1b3c63}
.gsvc .muted,.gsvc-intro{color:#536b87}
.gsvc .cta-block{position:relative;overflow:hidden;border-radius:20px;padding:34px;background:linear-gradient(135deg,var(--accent,#3155ca),color-mix(in srgb,var(--accent,#3155ca) 72%,#162a70));box-shadow:0 14px 28px color-mix(in srgb,var(--accent,#3155ca) 24%,transparent)}
.gsvc .cta-block:after{content:'';position:absolute;width:220px;height:220px;right:-80px;top:-100px;border:1px solid rgba(255,255,255,.25);border-radius:50%;box-shadow:0 0 0 24px rgba(255,255,255,.06),0 0 0 48px rgba(255,255,255,.04)}
.gsvc .cta-block>*{position:relative;z-index:1}
.gsvc .faq-quick{gap:18px;margin-bottom:30px}
.gsvc .faq-quick__item{min-height:112px;padding:24px;border-color:#d9e3f2;border-radius:16px;box-shadow:0 8px 20px rgba(31,57,105,.05);transition:transform .18s ease,box-shadow .18s ease}
.gsvc .faq-quick__item:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(31,57,105,.1)}
.gsvc .faq-layout{gap:32px}
.gsvc .faq details{border-color:#d9e3f2;box-shadow:0 5px 14px rgba(31,57,105,.035)}
.gsvc .faq summary{padding:20px 52px 20px 22px}
.gsvc .faq details p{padding:0 22px 22px;color:#536b87}
.gsvc-actions{position:relative;z-index:2}
.gsvc a:focus-visible,.gsvc button:focus-visible,.gsvc summary:focus-visible{outline:3px solid #f2bf4e;outline-offset:3px}
@media(max-width:900px){.gsvc-wrap{padding:28px 22px}.gsvc-heading{padding:24px 24px 26px}.gsvc-layout,.gsvc .faq-layout{gap:20px}.gsvc-menu,.gsvc .faq-menu{position:static}}
@media(max-width:600px){.gsvc{padding-bottom:44px}.gsvc-wrap{padding:20px 16px}.gsvc-heading{padding:22px 18px;border-radius:18px;margin-bottom:18px}.gsvc h1{font-size:32px}.gsvc-heading>p{font-size:16px}.gsvc .s,.gsvc .cta-block{padding:22px 18px;border-radius:16px}.gsvc .faq-quick__item{min-height:0;padding:18px}.gsvc .faq summary{padding:17px 46px 17px 17px}.gsvc .faq details p{padding:0 17px 18px}}

/* service-pages mobile layout fix: 2026-09-09 */
@media(max-width:900px){.gsvc-layout,.gsvc .faq-layout{grid-template-columns:1fr!important}.gsvc-menu{grid-template-columns:repeat(2,minmax(0,1fr))}.gsvc-menu>b{grid-column:1/-1}}
@media(max-width:600px){.gsvc-menu{grid-template-columns:repeat(2,minmax(0,1fr))}.gsvc-menu a{min-width:0;overflow-wrap:anywhere}}