:root { color-scheme: light; --ink: #1a1a2e; --muted: #526477; --blue: #1278b5; --line: #cedde8; }
* { box-sizing: border-box; }
body { margin: 0; background: #fff; color: var(--ink); font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif; font-size: 16px; line-height: 1.8; line-break: strict; overflow-wrap: anywhere; }
a { color: #116b9e; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
.site-header { max-width: 1100px; min-height: 92px; padding: 20px 28px; margin: auto; display: flex; align-items: center; justify-content: space-between; gap: 20px; border-bottom: 1px solid var(--line); }
.site-logo { color: #0d1e30; font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: 23px; font-weight: 700; letter-spacing: .08em; text-decoration: none; }
.site-logo span { display: block; color: var(--blue); font-family: sans-serif; font-size: 10px; letter-spacing: .14em; }
.site-header > a:last-child { font-size: 14px; }
main { max-width: 800px; padding: 30px 24px 48px; margin: auto; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 10px; font-size: 12px; color: var(--muted); margin-bottom: 32px; }
h1, h2, legend { font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-weight: 700; }
h1 { margin: 0 0 20px; font-size: clamp(25px, 4vw, 34px); line-height: 1.5; letter-spacing: .04em; }
.heading-part { display: inline-block; margin-left: .6em; }
.intro { margin-bottom: 14px; }
.hint { color: var(--muted); font-size: 13px; line-height: 1.7; margin: 4px 0 8px; }
form { margin-top: 40px; }
fieldset { margin: 0 0 36px; padding: 22px 0 0; border: 0; border-top: 2px solid var(--line); min-width: 0; }
legend { padding-right: 18px; color: #195d84; font-size: 21px; }
.form-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); column-gap: 24px; }
.field { min-width: 0; margin-bottom: 24px; }
.full { grid-column: 1 / -1; }
label { display: block; margin-bottom: 8px; font-size: 15px; font-weight: 600; }
.required, .optional { display: inline-block; vertical-align: middle; font-size: 11px; font-weight: 500; line-height: 1.6; margin-left: 10px; }
.required { color: #8e3434; background: #fff2f0; padding: 1px 5px; }
.optional { color: var(--muted); }
input:not([type="checkbox"]), textarea { display: block; width: 100%; max-width: 100%; min-width: 0; padding: 11px 12px; font: inherit; font-size: 16px; color: var(--ink); border: 1px solid #9eafbd; border-radius: 4px; background: #fff; }
textarea { resize: vertical; }
input[type="file"] { padding: 12px; background: #f5f8fc; font-size: 14px; }
input::file-selector-button { padding: 8px 12px; margin-right: 12px; border: 1px solid #9eafbd; border-radius: 3px; background: #fff; color: var(--ink); font: inherit; cursor: pointer; }
:focus-visible { outline: 3px solid #147daf; outline-offset: 3px; }
[aria-invalid="true"] { border-color: #a33838 !important; }
.submission p { margin-top: 0; font-size: 14px; }
.consent { display: flex; align-items: flex-start; gap: 10px; margin: 22px 0 0; }
.consent input { flex-shrink: 0; width: 20px; height: 20px; margin: 4px 0 0; accent-color: var(--blue); }
button { min-height: 48px; padding: 12px 26px; border: 0; border-radius: 4px; font: inherit; font-weight: 600; cursor: pointer; background: var(--blue); color: #fff; }
button:hover:not(:disabled) { background: #0f6397; }
button:disabled { cursor: wait; opacity: .6; }
#submit-button { width: 100%; margin-top: 22px; }
.secondary { background: #eaf3f9; color: #165b83; font-size: 14px; }
.secondary:hover:not(:disabled) { background: #d9eaf5; }
.submit-note { margin-top: 12px; text-align: center; }
.notice { border: 1px solid var(--line); border-radius: 4px; padding: 20px; margin-top: 24px; }
.error { color: #922b2b; background: #fff7f6; border-color: #dcb3ae; }
.success { background: #f0f7fc; }
.success h2 { margin-top: 0; font-size: 23px; }
#receipt-id { font-family: monospace; word-break: break-all; }
.help { margin-top: 36px; font-size: 14px; color: var(--muted); }
footer { border-top: 1px solid var(--line); padding: 24px; color: var(--muted); text-align: center; font-size: 13px; }
.skip-link { position: absolute; top: -100px; padding: 10px; background: white; }
.skip-link:focus { top: 0; }
[hidden] { display: none !important; }
@media (max-width: 600px) {
  .site-header { padding: 16px 20px; gap: 12px; }
  .site-logo { font-size: 20px; }
  .site-header > a:last-child { font-size: 12px; }
  main { padding: 24px 20px 40px; }
  .form-grid { grid-template-columns: minmax(0, 1fr); }
  .heading-part { display: block; margin-left: 0; }
  .breadcrumb { margin-bottom: 26px; }
}