:root {
    font-family: "Segoe UI", system-ui, sans-serif;
    color: #13283c;
    background: #f4f8fb;
    line-height: 1.55;
}
* { box-sizing: border-box; }
body { margin: 0; }
[hidden] { display: none !important; }
a { color: #00638f; text-underline-offset: .2em; }
a:focus-visible, input:focus-visible, summary:focus-visible { outline: 3px solid #009acf; outline-offset: 3px; }
.wrap { width: min(1090px, calc(100% - 40px)); margin: 0 auto; }
.sr-only, .skip:not(:focus) { position: absolute; width: 1px; height: 1px; clip-path: inset(50%); overflow: hidden; white-space: nowrap; }
.skip:focus { position: fixed; top: 8px; left: 8px; z-index: 2; background: white; padding: 10px; }
.header, .footer { background: #0e1b2b; color: #dce7f1; }
.header-content, .footer-content { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.header-content { min-height: 68px; }
.header img { display: block; object-fit: contain; }
.back, .footer a { color: #eff8ff; }
.back { font-size: .875rem; font-weight: 650; text-decoration: none; }
.back:hover { text-decoration: underline; }
.hero { background: #e9f4fa; border-bottom: 1px solid #d7e7f1; padding: clamp(38px, 7vw, 74px) 0 clamp(36px, 5vw, 52px); }
h1, h2, p { margin: 0; }
h1 { font-size: clamp(2.25rem, 6vw, 4rem); font-weight: 730; line-height: 1.08; letter-spacing: -.045em; }
.hero p { color: #3e566b; font-size: 1.08rem; margin-top: 14px; }
.search { max-width: 610px; margin-top: 23px; }
.search input { width: 100%; padding: 13px 16px; font: inherit; color: inherit; background: #fff; border: 1px solid #9fbaca; border-radius: 10px; }
.search input::placeholder { color: #536c7f; opacity: 1; }
.main-content { padding: 24px 0 56px; }
.topics { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-bottom: 28px; }
.topic { background: #fff; border: 1px solid #d9e5ee; border-radius: 10px; padding: 13px; display: flex; gap: 6px; justify-content: space-between; align-items: center; font-size: .875rem; color: #16374c; font-weight: 670; text-decoration: none; }
.topic:hover { background: #f0f9ff; border-color: #8bc6e2; }
.arrow { color: #0076a8; font-size: 1.04rem; }
.search-status:not(:empty) { color: #445e72; margin-bottom: 18px; }
.content-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(240px, 296px); gap: 28px; align-items: start; }
.category { scroll-margin-top: 18px; }
.category + .category { margin-top: 26px; }
.category h2, .support h2 { font-size: 1.24rem; line-height: 1.25; margin-bottom: 12px; }
.category details { background: #fff; border: 1px solid #dbe6ee; border-radius: 10px; margin-top: 7px; scroll-margin-top: 12px; }
.category details[open] { border-color: #b0d0e2; }
summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 12px; align-items: center; min-height: 49px; padding: 10px 14px; font-weight: 650; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: #00638f; font-size: 1.25rem; font-weight: 500; }
details[open] summary::after { content: "−"; }
.answer { padding: 0 14px 15px; color: #344e60; }
.answer ol { padding-left: 20px; margin: 0 0 8px; }
.answer li + li { margin-top: 6px; }
.answer a { font-weight: 650; }
.support { padding: 19px; border: 1px solid #d1e5ef; border-radius: 12px; background: #eaf5fb; }
.support p { color: #3e586b; margin-bottom: 14px; }
.call { display: block; background: #005b83; color: #fff; text-align: center; text-decoration: none; font-weight: 650; padding: 10px 6px; border-radius: 8px; }
.call:hover { background: #044965; }
.mail { display: block; margin: 10px 0; overflow-wrap: anywhere; }
.support .hours { font-size: .87rem; margin-bottom: 0; }
.footer { padding: 20px 0; font-size: .86rem; }
@media (max-width: 760px) {
    .content-grid { grid-template-columns: 1fr; }
    .topics { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
    .footer-content { flex-wrap: wrap; }
}
@media (max-width: 360px) {
    .wrap { width: calc(100% - 28px); }
    .topic { font-size: .8rem; padding: 9px; }
}