@font-face {
  font-family: "Pretendard";
  src: url("/platform-static/fonts/pretendard/PretendardVariable.woff2?v=20260511-pretendard") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: light;
  --page: #f7faf9;
  --surface: #ffffff;
  --surface-strong: #eef6f2;
  --ink: #101827;
  --muted: #637083;
  --line: #d9e5e0;
  --green: #0f9f6e;
  --blue: #246bfe;
  --amber: #b96c10;
  --shadow: 0 24px 70px rgba(31, 47, 64, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--page);
  color: var(--ink);
  font-family: "Pretendard", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(135deg, rgba(36, 107, 254, 0.08), transparent 34%),
    linear-gradient(315deg, rgba(15, 159, 110, 0.12), transparent 32%),
    var(--page);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: 16px;
  z-index: 30;
  padding: 10px 14px;
  border-radius: 6px;
  background: var(--ink);
  color: #fff;
  transform: translateY(-140%);
}

.skip-link:focus {
  transform: translateY(0);
}

.research-topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: minmax(190px, 1fr) auto minmax(160px, 0.7fr);
  gap: 24px;
  align-items: center;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 18px 0 14px;
  background: rgba(247, 250, 249, 0.86);
  backdrop-filter: blur(18px);
}

.research-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.research-brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  font-weight: 900;
}

.research-brand strong,
.research-brand em {
  display: block;
}

.research-brand strong {
  font-size: 17px;
  letter-spacing: 0;
}

.research-brand em {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
  font-weight: 700;
}

.research-nav {
  display: inline-flex;
  gap: 8px;
  padding: 5px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
}

.research-nav a {
  padding: 9px 12px;
  border-radius: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
  white-space: nowrap;
}

.research-nav a[aria-current="page"] {
  background: var(--ink);
  color: #fff;
}

.research-account {
  justify-self: end;
  min-width: 0;
  text-align: right;
}

.research-account span,
.research-account strong {
  display: block;
}

.research-account span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.research-account strong {
  margin-top: 3px;
  font-size: 16px;
}

.research-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 72px;
}

.research-workbench {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 390px);
  gap: 28px;
  align-items: stretch;
  min-height: 470px;
}

.research-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(28px, 5vw, 56px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: var(--shadow);
}

.research-system-label {
  margin: 0 0 18px;
  color: var(--green);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

.research-copy h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(38px, 5vw, 72px);
  line-height: 1.03;
  letter-spacing: 0;
}

.research-lead {
  max-width: 760px;
  margin: 22px 0 0;
  color: #425168;
  font-size: clamp(16px, 2vw, 20px);
  font-weight: 600;
  line-height: 1.7;
}

.research-proof-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 34px;
}

.research-proof-strip span {
  display: block;
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f9fcfb;
}

.research-proof-strip em,
.research-proof-strip strong {
  display: block;
}

.research-proof-strip em {
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
  font-weight: 800;
}

.research-proof-strip strong {
  margin-top: 6px;
  font-size: 16px;
}

.research-order-panel,
.research-result-panel,
.research-visual-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.research-order-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 22px;
}

.research-panel-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.research-panel-head span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 900;
}

.research-panel-head strong {
  color: var(--green);
}

.research-field {
  display: grid;
  gap: 8px;
}

.research-field span {
  color: #253247;
  font-size: 13px;
  font-weight: 900;
}

.research-field input,
.research-field select,
.research-field textarea {
  width: 100%;
  border: 1px solid #cbd9d5;
  border-radius: 8px;
  background: #fbfdfc;
  color: var(--ink);
  outline: none;
}

.research-field input,
.research-field select {
  min-height: 48px;
  padding: 0 14px;
}

.research-field textarea {
  resize: vertical;
  min-height: 104px;
  padding: 13px 14px;
  line-height: 1.55;
}

.research-field input:focus,
.research-field select:focus,
.research-field textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(36, 107, 254, 0.12);
}

.research-submit {
  min-height: 52px;
  border: 0;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  cursor: pointer;
  font-weight: 900;
}

.research-submit:disabled {
  cursor: wait;
  opacity: 0.68;
}

.research-product-note,
.research-error {
  margin: 0;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.55;
}

.research-product-note {
  color: var(--muted);
}

.research-error {
  padding: 12px;
  border: 1px solid rgba(185, 108, 16, 0.24);
  border-radius: 8px;
  background: rgba(185, 108, 16, 0.08);
  color: #7b3f00;
}

.research-output-grid {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 28px;
  align-items: start;
  margin-top: 28px;
}

.research-visual-panel {
  overflow: hidden;
}

.research-visual-panel img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: #dfe9e6;
}

.research-visual-panel div {
  padding: 22px;
}

.research-visual-panel p,
.research-visual-panel h2 {
  margin: 0;
}

.research-visual-panel p {
  color: var(--green);
  font-size: 12px;
  font-weight: 900;
}

.research-visual-panel h2 {
  margin-top: 9px;
  font-size: 26px;
  line-height: 1.18;
}

.research-visual-panel span {
  display: block;
  margin-top: 14px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.research-result-panel {
  min-height: 430px;
  padding: 24px;
}

.research-empty-state p,
.research-empty-state h2 {
  margin: 0;
}

.research-empty-state p,
.research-report-meta,
.research-report-disclaimer {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.research-empty-state h2 {
  max-width: 680px;
  margin-top: 10px;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.18;
}

.research-empty-state ul,
.research-model-card ul,
.research-checklist {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.research-empty-state li,
.research-model-card li,
.research-checklist li {
  position: relative;
  padding-left: 18px;
  color: #314157;
  font-weight: 700;
  line-height: 1.58;
}

.research-empty-state li + li,
.research-model-card li + li,
.research-checklist li + li {
  margin-top: 8px;
}

.research-empty-state li::before,
.research-model-card li::before,
.research-checklist li::before {
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  content: "";
}

.research-report-head {
  display: grid;
  gap: 12px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.research-report-head h2 {
  margin: 0;
  font-size: clamp(28px, 3vw, 44px);
  line-height: 1.08;
}

.research-report-summary {
  margin: 0;
  color: #314157;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.65;
}

.research-levels {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.research-levels span {
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-strong);
}

.research-levels em,
.research-levels strong {
  display: block;
}

.research-levels em {
  color: var(--muted);
  font-size: 11px;
  font-style: normal;
  font-weight: 900;
}

.research-levels strong {
  margin-top: 5px;
  font-size: 15px;
}

.research-model-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.research-model-card {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfdfc;
}

.research-model-card header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 13px;
}

.research-model-card h3 {
  margin: 0;
  font-size: 19px;
}

.research-model-card em {
  display: block;
  margin-top: 3px;
  color: var(--blue);
  font-size: 12px;
  font-style: normal;
  font-weight: 900;
}

.research-model-card strong {
  color: var(--green);
  font-size: 12px;
}

.research-model-card p {
  margin: 0;
  color: #28384e;
  font-weight: 800;
  line-height: 1.55;
}

.research-checklist-shell {
  margin-top: 18px;
  padding: 18px;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
}

.research-checklist-shell h3 {
  margin: 0;
  font-size: 20px;
}

.research-checklist li {
  color: rgba(255, 255, 255, 0.86);
}

.research-report-disclaimer {
  margin: 18px 0 0;
}

@media (max-width: 920px) {
  .research-topbar,
  .research-workbench,
  .research-output-grid {
    grid-template-columns: 1fr;
  }

  .research-nav {
    order: 3;
    overflow-x: auto;
  }

  .research-account {
    justify-self: start;
    text-align: left;
  }

  .research-proof-strip,
  .research-model-grid,
  .research-levels {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .research-topbar,
  .research-shell {
    width: min(100% - 20px, 1180px);
  }

  .research-copy,
  .research-order-panel,
  .research-result-panel {
    padding: 18px;
  }

  .research-copy h1 {
    font-size: 34px;
  }
}