.methodology-page { background: var(--bg); color: var(--text); }
.methodology-topbar { padding-inline: max(18px, calc((100vw - 1060px) / 2)); }
.methodology-nav { display: flex; align-items: center; gap: clamp(15px, 2.3vw, 32px); }
.methodology-nav a { color: var(--muted); font-size: 12px; font-weight: 700; text-decoration: none; }
.methodology-nav a:hover, .methodology-nav a:focus-visible { color: var(--text); }
.methodology-nav .methodology-nav-cta {
  padding: 9px 14px; border: 1px solid rgba(79, 140, 255, 0.65); border-radius: 6px;
  background: var(--blue); color: #071326; box-shadow: 0 8px 26px rgba(79, 140, 255, 0.18);
}
.methodology-nav .methodology-nav-cta:hover, .methodology-nav .methodology-nav-cta:focus-visible { background: #75a5ff; color: #071326; }

.methodology-main { max-width: none; padding: 0; }
.methodology-article { width: min(1060px, calc(100% - 36px)); margin: 0 auto; }
.methodology-hero { padding: clamp(64px, 9vw, 112px) 0 clamp(70px, 9vw, 108px); }
.methodology-hero h1 {
  max-width: 960px; margin: 0; font-size: clamp(31px, 4.7vw, 50px); line-height: 1.08;
  letter-spacing: -0.045em;
}
.methodology-lead { max-width: 790px; margin: 26px 0 0; color: #a8adba; font-size: clamp(16px, 2vw, 19px); line-height: 1.72; }
.methodology-actions { display: flex; flex-wrap: wrap; gap: 11px; margin-top: 31px; }
.methodology-button {
  display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 0 17px;
  border: 1px solid var(--border); border-radius: 6px; font-size: 12px; font-weight: 800; text-decoration: none;
}
.methodology-button.primary { border-color: var(--blue); background: var(--blue); color: #071326; }
.methodology-button.primary:hover, .methodology-button.primary:focus-visible { background: #75a5ff; }
.methodology-button.secondary { background: var(--panel); color: var(--text); }
.methodology-button.secondary:hover, .methodology-button.secondary:focus-visible { border-color: #4a5262; background: var(--panel-raised); }

.methodology-contents {
  margin-top: clamp(48px, 7vw, 72px); padding: clamp(24px, 4vw, 37px);
  border: 1px solid var(--border); border-radius: 10px; background: var(--panel);
}
.methodology-kicker { margin: 0; color: #8992a7; font-size: 10px; font-weight: 850; letter-spacing: 0.15em; line-height: 1.35; }
.methodology-contents ol { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 13px 36px; margin: 20px 0 0; padding-left: 22px; }
.methodology-contents li { padding-left: 4px; color: #697184; font-size: 13px; }
.methodology-contents a { color: #8fb7ff; line-height: 1.5; text-decoration: none; }
.methodology-contents a:hover, .methodology-contents a:focus-visible { color: var(--text); }

.methodology-section { position: relative; padding: clamp(70px, 9vw, 108px) 0; border-top: 1px solid var(--border); scroll-margin-top: 76px; }
.methodology-section h2 {
  display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: baseline; gap: clamp(14px, 2vw, 24px);
  max-width: 960px; margin: 0; font-size: clamp(31px, 4.7vw, 50px); line-height: 1.08; letter-spacing: -0.045em;
}
.methodology-section-number { color: inherit; font: inherit; letter-spacing: inherit; font-variant-numeric: tabular-nums; }
.methodology-section h3 { margin: 34px 0 0; font-size: 18px; line-height: 1.3; letter-spacing: -0.02em; }
.methodology-section-lead { max-width: 810px; margin: 22px 0 0; color: #a8adba; font-size: 16px; line-height: 1.72; }

.methodology-flow { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px; margin: 39px 0 0; padding: 0; list-style: none; }
.methodology-flow li { min-height: 198px; padding: 20px 17px; border: 1px solid var(--border); border-radius: 8px; background: var(--panel); }
.methodology-flow span { display: block; color: var(--blue); font-size: 10px; font-weight: 850; letter-spacing: 0.14em; }
.methodology-flow strong { display: block; margin-top: 35px; font-size: 15px; }
.methodology-flow p { margin: 9px 0 0; color: var(--muted); font-size: 12px; line-height: 1.65; }

.methodology-formula { margin-top: 32px; padding: clamp(24px, 4vw, 38px); border: 1px solid rgba(79, 140, 255, 0.38); border-radius: 9px; background: linear-gradient(135deg, rgba(79, 140, 255, 0.09), rgba(29, 33, 41, 0.9)); }
.methodology-formula.compact { padding-block: 30px; }
.formula-line { display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px 15px; margin: 23px 0 0; color: #edf3ff; font-size: clamp(19px, 3vw, 30px); font-weight: 650; letter-spacing: -0.025em; }
.formula-line sub, .formula-line sup { font-size: 0.55em; }
.formula-line + p { max-width: 780px; margin: 21px 0 0; color: #9ea5b5; font-size: 13px; line-height: 1.72; }
.formula-small { font-size: clamp(16px, 2.35vw, 23px); line-height: 1.55; }

.methodology-table-wrap { margin-top: 38px; overflow-x: auto; border: 1px solid var(--border); border-radius: 9px; background: var(--panel); }
.methodology-table-wrap:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }
.methodology-table { width: 100%; border-collapse: collapse; min-width: 720px; }
.methodology-table th, .methodology-table td { padding: 18px 20px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
.methodology-table tr:last-child th, .methodology-table tr:last-child td { border-bottom: 0; }
.methodology-table thead th { color: #8992a7; font-size: 10px; font-weight: 850; letter-spacing: 0.12em; text-transform: uppercase; }
.methodology-table tbody th { width: 16%; color: var(--text); font-size: 13px; line-height: 1.55; }
.methodology-table tbody td { color: #9da4b3; font-size: 12px; line-height: 1.68; }
.methodology-table a { color: #8fb7ff; font-weight: 750; text-decoration: none; }
.methodology-table a:hover, .methodology-table a:focus-visible { color: var(--text); }
.source-table td:nth-child(2) { width: 31%; color: #c7cad3; }
.payoff-table tbody th { color: #8fb7ff; }
.reference-table tbody th { width: 20%; color: #8992a7; font-size: 10px; font-weight: 850; letter-spacing: 0.11em; text-transform: uppercase; }
.reference-table strong { color: var(--text); font-size: 14px; }

.methodology-note { margin-top: 26px; padding: 23px 25px; border-left: 2px solid #4b566b; border-radius: 0 7px 7px 0; background: rgba(29, 33, 41, 0.72); }
.methodology-note.accent { border-left-color: var(--blue); }
.methodology-note > p:last-child { max-width: 850px; margin: 12px 0 0; color: #9ea5b5; font-size: 13px; line-height: 1.72; }

.parameter-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px; margin: 38px 0 0; }
.parameter-grid div { padding: 19px 17px; border: 1px solid var(--border); border-radius: 7px; background: var(--panel); }
.parameter-grid dt { color: #8fb7ff; font-size: 21px; font-weight: 750; }
.parameter-grid dd { margin: 10px 0 0; color: var(--muted); font-size: 12px; line-height: 1.55; }

.technical-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 30px; }
.technical-grid article, .interpretation-grid article { padding: 25px; border: 1px solid var(--border); border-radius: 8px; background: var(--panel); }
.technical-grid h3, .interpretation-grid h3, .research-columns h3 { margin: 13px 0 0; font-size: 16px; }
.technical-grid article > p:last-child, .interpretation-grid article > p:last-child, .research-columns article > p { margin: 12px 0 0; color: #969dac; font-size: 12px; line-height: 1.7; }

.alignment-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; margin-top: 30px; }
.alignment-grid article { padding: 20px; border: 1px solid var(--border); border-radius: 8px; background: var(--panel); }
.alignment-grid strong { color: #8fb7ff; font-size: 13px; }
.alignment-grid p { margin: 11px 0 0; color: var(--muted); font-size: 12px; line-height: 1.62; }
.methodology-steps { display: grid; gap: 10px; margin: 22px 0 0; padding: 0; list-style: none; }
.methodology-steps li { display: grid; grid-template-columns: 30px 1fr; gap: 13px; align-items: start; padding: 15px 18px; border: 1px solid var(--border); border-radius: 7px; background: rgba(23, 26, 33, 0.7); }
.methodology-steps span { display: grid; width: 25px; height: 25px; place-items: center; border: 1px solid #3d4f71; border-radius: 50%; color: #8fb7ff; font-size: 10px; font-weight: 850; }
.methodology-steps p { margin: 2px 0 0; color: #a6acb9; font-size: 12px; line-height: 1.62; }

.interpretation-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 38px; }
.methodology-list { display: grid; gap: 11px; max-width: 850px; margin: 21px 0 0; padding-left: 21px; }
.methodology-list li { padding-left: 5px; color: #a3a9b7; font-size: 13px; line-height: 1.65; }
.methodology-list li::marker { color: var(--blue); }

.research-callout { margin-top: 38px; padding: clamp(25px, 4vw, 38px); border: 1px solid rgba(79, 140, 255, 0.4); border-radius: 9px; background: linear-gradient(145deg, rgba(79, 140, 255, 0.08), var(--panel)); }
.research-columns { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px; margin-top: 25px; }
.research-columns article + article { padding-left: 32px; border-left: 1px solid var(--border); }
.research-conclusion { margin: 28px 0 0; padding-top: 23px; border-top: 1px solid var(--border); color: #c7cad3; font-size: 13px; font-weight: 700; line-height: 1.65; }
.back-to-top { display: inline-block; margin-top: 28px; color: #8fb7ff; font-size: 12px; font-weight: 800; text-decoration: none; }
.back-to-top:hover, .back-to-top:focus-visible { color: var(--text); }

.methodology-footer { padding-inline: max(18px, calc((100vw - 1060px) / 2)); font-size: 10px; }
.methodology-page a:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }

@media (max-width: 920px) {
  .methodology-flow { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .methodology-flow li { min-height: 175px; }
  .parameter-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .alignment-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 700px) {
  .methodology-nav { gap: 13px; }
  .methodology-nav-section { display: none; }
  .methodology-article { width: min(100% - 30px, 1060px); }
  .methodology-hero { padding-top: 54px; }
  .methodology-contents ol { grid-template-columns: 1fr; gap: 11px; }
  .methodology-flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .technical-grid, .interpretation-grid, .research-columns { grid-template-columns: 1fr; }
  .research-columns { gap: 24px; }
  .research-columns article + article { padding: 24px 0 0; border-top: 1px solid var(--border); border-left: 0; }
}

@media (max-width: 480px) {
  .methodology-topbar { padding-inline: 14px; }
  .methodology-nav { gap: 9px; }
  .methodology-nav a { font-size: 10px; }
  .methodology-nav .methodology-nav-cta { padding: 8px 9px; }
  .methodology-actions { display: grid; }
  .methodology-button { width: 100%; }
  .methodology-flow, .parameter-grid, .alignment-grid { grid-template-columns: 1fr; }
  .methodology-flow li { min-height: 0; }
  .methodology-flow strong { margin-top: 24px; }
  .formula-line { gap: 8px 11px; }
  .methodology-table th, .methodology-table td { padding: 16px; }
  .methodology-footer { padding-inline: 15px; }
}

@media (prefers-reduced-motion: reduce) {
  .methodology-page * { scroll-behavior: auto !important; }
}