.trt-hd { box-sizing: border-box; color: #1f2937; }
.trt-hd *, .trt-hd *::before, .trt-hd *::after { box-sizing: inherit; }
.trt-hd--embedded { margin: -8px 0 24px; }
.trt-hd__toggle { border: 1px solid #bfdbfe; border-radius: 12px; background: #eff6ff; overflow: hidden; }
.trt-hd__toggle > summary { display: flex; align-items: center; gap: 10px; padding: 13px 15px; color: #1e3a8a; font-weight: 750; cursor: pointer; list-style: none; }
.trt-hd__toggle > summary::-webkit-details-marker { display: none; }
.trt-hd__toggle > summary::after { content: "+"; margin-left: auto; font-size: 1.25rem; line-height: 1; }
.trt-hd__toggle[open] > summary::after { content: "−"; }
.trt-hd__icon { display: inline-flex; align-items: center; justify-content: center; width: 24px; height: 24px; border-radius: 50%; background: #1d4ed8; color: #fff; font-size: .9rem; font-weight: 800; }
.trt-hd__body { padding: 0 15px 16px; }
.trt-hd--standalone { max-width: 820px; margin: 32px auto; padding: 0 16px; }
.trt-hd__card { background: #fff; border: 1px solid #e5e7eb; border-radius: 18px; box-shadow: 0 14px 38px rgba(15,23,42,.08); padding: clamp(22px,5vw,42px); }
.trt-hd__card h2 { margin: 0 0 8px; font-size: clamp(1.55rem,4vw,2.15rem); line-height: 1.2; color: #111827; }
.trt-hd__lead { margin: 0 0 24px; color: #5b6472; }
.trt-hd__card > .trt-hd__body { padding: 0; }
.trt-hd__steps { padding: 15px 16px; border: 1px solid #dbeafe; border-radius: 10px; background: #fff; }
.trt-hd--standalone .trt-hd__steps { background: #f8fafc; border-color: #e2e8f0; }
.trt-hd__steps ol { margin: 9px 0 0 20px; padding: 0; }
.trt-hd__steps li + li { margin-top: 5px; }
.trt-hd__faq { margin-top: 14px; }
.trt-hd__faq-item { border-top: 1px solid #dbeafe; }
.trt-hd__faq-item:last-child { border-bottom: 1px solid #dbeafe; }
.trt-hd__faq-item > summary { padding: 12px 2px; font-weight: 700; cursor: pointer; }
.trt-hd__faq-item p { margin: -2px 0 14px; color: #475569; line-height: 1.55; }
.trt-hd__contact { margin-top: 18px; padding: 15px 16px; border: 1px solid #fed7aa; border-radius: 10px; background: #fff7ed; }
.trt-hd__contact p { margin: 6px 0 12px; color: #7c2d12; line-height: 1.5; }
.trt-hd__button { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 9px 14px; border-radius: 8px; background: #9a3412; color: #fff !important; font-weight: 700; text-decoration: none !important; }
.trt-hd__button:hover, .trt-hd__button:focus { background: #7c2d12; color: #fff !important; }
.trt-hd__button:focus-visible, .trt-hd summary:focus-visible { outline: 3px solid rgba(37,99,235,.3); outline-offset: 3px; }
@media (max-width: 640px) { .trt-hd__button { width: 100%; } }