:root { color-scheme: light; }
html { scroll-padding-top: 24px; }
body { margin: 0; background: #edf1f5; color: #142c40; font-family: "Segoe UI Variable", "Segoe UI", Arial, sans-serif; }
.mine-page *, .mine-header *, .mine-skip { box-sizing: border-box; }
.mine-page a, .mine-header a, .mine-skip { color: inherit; }
.mine-page a:focus-visible, .mine-header a:focus-visible, .mine-skip:focus-visible, .mine-page summary:focus-visible { outline: 3px solid #1769aa; outline-offset: 5px; }
.mine-skip { position: absolute; top: 8px; left: 12px; padding: 12px 20px; background: white; z-index: 2; transform: translateY(-180%); }
.mine-skip:focus { transform: none; }
.mine-header { display: flex; align-items: center; gap: 36px; padding: 20px max(28px, calc((100% - 1240px) / 2)); border-bottom: 1px solid #d4dfe7; background: white; }
.mine-brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.mine-brand img { display: block; object-fit: contain; flex: 0 0 48px; }
.mine-brand strong, .mine-brand small { display: block; }
.mine-brand strong { font-size: 24px; letter-spacing: -.035em; line-height: 1.15; }
.mine-brand small { margin-top: 3px; color: #53687a; font-size: 12px; }
.mine-nav { display: flex; flex: 1; align-items: center; justify-content: center; gap: 28px; font-size: 14px; font-weight: 600; }
.mine-nav a, .mine-contact { text-decoration: none; padding: 8px 0; }
.mine-nav a:hover, .mine-contact:hover { color: #1769aa; text-decoration: underline; text-underline-offset: 5px; }
.mine-contact { font-size: 14px; font-weight: 600; white-space: nowrap; }
.mine-contact span { margin-left: 7px; }
.mine-page { max-width: 1296px; margin: 0 auto; padding: 0 28px; }
.mine-hero { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr); gap: 64px; align-items: center; padding: 88px 0 92px; }
.mine-eyebrow { margin: 0 0 19px; color: #1769aa; font-size: 12px; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; }
.mine-hero h1 { margin: 0; font-size: clamp(40px, 4.6vw, 67px); line-height: 1.055; letter-spacing: -.055em; font-weight: 650; }
.mine-hero h1 span { color: #1769aa; }
.mine-intro { margin: 28px 0 28px; max-width: 565px; color: #4a6072; font-size: 19px; line-height: 1.7; }
.mine-page a.mine-button { display: inline-flex; align-items: center; justify-content: center; gap: 20px; padding: 15px 22px; border: 1px solid #1769aa; border-radius: 5px; color: white; background: #1769aa; text-decoration: none; font-size: 15px; font-weight: 600; line-height: 1.4; }
.mine-page a.mine-button:hover { background: #12578d; border-color: #12578d; }
.mine-connector { display: flex; align-items: center; gap: 11px; margin: 30px 0 0; font-size: 12px; color: #53687a; }
.mine-connector span { padding: 6px 10px; border: 1px solid #c3d1dc; border-radius: 4px; color: #142c40; background: #f7f9fb; font-weight: 600; }
.mine-question-card { padding: 26px 28px 24px; border: 1px solid #cddae4; border-radius: 10px; background: white; box-shadow: 0 14px 44px #142c400b; }
.mine-question-heading { display: flex; align-items: center; gap: 10px; color: #53687a; font-size: 12px; }
.mine-question-heading img { object-fit: contain; }
.mine-question { margin: 23px 0 22px; font-size: 31px; line-height: 1.2; letter-spacing: -.025em; font-weight: 600; }
.mine-dimensions { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 27px; }
.mine-dimensions span { padding: 5px 10px; border-radius: 4px; background: #edf1f5; color: #3f5b72; font-size: 12px; }
.mine-evidence-path { list-style: none; padding: 0; margin: 0; }
.mine-evidence-path li { display: flex; gap: 15px; padding: 16px 0; border-top: 1px solid #e1e8ef; }
.mine-evidence-path li > span { flex: 0 0 25px; padding-top: 2px; color: #1769aa; font-size: 12px; font-weight: 600; }
.mine-evidence-path strong { display: block; font-size: 14px; font-weight: 600; }
.mine-evidence-path p { margin: 5px 0 0; color: #53687a; font-size: 13px; line-height: 1.5; }
.mine-example-note { margin: 14px 0 0; padding-top: 15px; border-top: 1px solid #e1e8ef; color: #53687a; font-size: 11px; line-height: 1.55; }
.mine-section { padding: 64px 0; border-top: 1px solid #ccd8e2; }
.mine-section-heading { max-width: 720px; margin-bottom: 32px; }
.mine-section-heading .mine-eyebrow { margin-bottom: 12px; }
.mine-page h2 { margin: 0; font-size: clamp(28px, 3vw, 38px); line-height: 1.2; font-weight: 600; letter-spacing: -.035em; }
.mine-section-heading > p:last-child:not(.mine-eyebrow) { margin: 18px 0 0; color: #53687a; font-size: 17px; line-height: 1.65; }
.mine-question-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.mine-question-grid article { padding: 27px 24px; border: 1px solid #d4dfe7; border-radius: 7px; background: white; }
.mine-card-label { margin: 0 0 26px; color: #1769aa; font-size: 12px; font-weight: 600; }
.mine-page h3 { margin: 0; font-size: 19px; line-height: 1.3; font-weight: 600; letter-spacing: -.02em; }
.mine-question-grid article > p:last-child, .mine-evidence-grid p { margin: 15px 0 0; color: #53687a; font-size: 14px; line-height: 1.75; }
.mine-evidence-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 42px; }
.mine-rule { display: block; width: 34px; height: 3px; margin: 0 0 21px; background: #1769aa; }
.mine-faq { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: 64px; }
.mine-faq-list { border-top: 1px solid #c4d2de; }
.mine-faq details { border-bottom: 1px solid #c4d2de; }
.mine-faq summary { padding: 21px 8px 21px 0; cursor: pointer; font-size: 16px; line-height: 1.5; font-weight: 600; }
.mine-faq summary::marker { color: #1769aa; }
.mine-faq details p { margin: 0 0 24px; color: #53687a; font-size: 14px; line-height: 1.75; }
.mine-close { display: flex; align-items: center; justify-content: space-between; gap: 50px; padding: 38px; margin: 12px 0 70px; background: white; border: 1px solid #cddae4; border-radius: 8px; }
.mine-close > div { max-width: 690px; }
.mine-close .mine-eyebrow { margin-bottom: 11px; }
.mine-close h2 { font-size: 28px; }
.mine-close p:last-child { margin: 14px 0 0; color: #53687a; font-size: 15px; line-height: 1.65; }
.mine-close .mine-button { flex: 0 0 auto; }
@media (max-width: 1050px) {
  .mine-header { gap: 20px; }
  .mine-nav { gap: 20px; }
  .mine-hero { gap: 32px; padding: 64px 0; }
  .mine-question-card { padding: 23px; }
  .mine-question-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mine-faq { gap: 36px; }
}
@media (max-width: 760px) {
  .mine-header { flex-wrap: wrap; padding: 18px 22px 12px; justify-content: space-between; row-gap: 14px; }
  .mine-brand strong { font-size: 22px; }
  .mine-nav { order: 3; flex-basis: 100%; justify-content: flex-start; gap: 24px; border-top: 1px solid #e1e8ef; padding-top: 6px; }
  .mine-contact { font-size: 12px; }
  .mine-page { padding: 0 22px; }
  .mine-hero { grid-template-columns: 1fr; gap: 36px; padding: 48px 0; }
  .mine-hero h1 { font-size: clamp(40px, 7.4vw, 56px); }
  .mine-intro { font-size: 17px; margin-top: 23px; }
  .mine-question-card { max-width: 560px; }
  .mine-section { padding: 43px 0; }
  .mine-evidence-grid { grid-template-columns: 1fr; gap: 30px; }
  .mine-evidence-grid p { max-width: 550px; }
  .mine-faq { grid-template-columns: 1fr; gap: 0; }
  .mine-close { display: block; padding: 28px; margin-bottom: 44px; }
  .mine-close .mine-button { margin-top: 26px; }
}
@media (max-width: 430px) {
  .mine-header { column-gap: 12px; }
  .mine-brand { gap: 8px; }
  .mine-brand img { width: 38px; height: 38px; flex-basis: 38px; }
  .mine-brand strong { font-size: 20px; }
  .mine-contact { max-width: 94px; white-space: normal; text-align: right; line-height: 1.5; }
  .mine-question-grid { grid-template-columns: 1fr; }
  .mine-question-grid article { padding: 24px; }
  .mine-card-label { margin-bottom: 16px; }
}