:root {
    --color-ink: #1f2933;
    --color-muted: #5f6f82;
    --color-soft: #f5f7fb;
    --color-paper: #ffffff;
    --color-line: #d9e2ec;
    --color-primary: #1d4ed8;
    --color-primary-dark: #173f9f;
    --color-accent: #0f766e;
    --color-warm: #b45309;
    --shadow-soft: 0 16px 40px rgba(31, 41, 51, 0.08);
    --radius: 8px;
    --content-width: 1120px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    position: relative;
    margin: 0;
    color: var(--color-ink);
    background:
        linear-gradient(145deg, rgba(29, 78, 216, 0.08), rgba(15, 118, 110, 0.06) 42%, rgba(180, 83, 9, 0.05)),
        var(--color-soft);
    font-family: Inter, "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", Meiryo, system-ui, sans-serif;
    font-size: 16px;
    line-height: 1.7;
}

img {
    max-width: 100%;
    height: auto;
}

a {
    color: var(--color-primary);
    text-decoration: none;
}

a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1,
h2,
h3 {
    color: var(--color-ink);
    line-height: 1.2;
}

h1 {
    max-width: 760px;
    margin-bottom: 1rem;
    font-size: 4.6rem;
    letter-spacing: 0;
}

.name-roman {
    display: block;
    margin-top: 0.75rem;
    color: var(--color-muted);
    font-size: clamp(1.15rem, 3vw, 1.7rem);
    font-weight: 600;
    line-height: 1.3;
}

h2 {
    margin-bottom: 0.75rem;
    font-size: 2.1rem;
    letter-spacing: 0;
}

h3 {
    margin-bottom: 0.55rem;
    font-size: 1.08rem;
    letter-spacing: 0;
}

p {
    color: var(--color-muted);
}

.container {
    width: min(100% - 2rem, var(--content-width));
    margin: 0 auto;
}

.skip-link {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    z-index: 20;
    transform: translateY(-150%);
    padding: 0.6rem 0.85rem;
    border-radius: var(--radius);
    background: var(--color-paper);
    box-shadow: var(--shadow-soft);
}

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

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    border-bottom: 1px solid rgba(217, 226, 236, 0.9);
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(16px);
}

main,
.site-footer {
    position: relative;
    z-index: 1;
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: min(100% - 2rem, var(--content-width));
    min-height: 72px;
    margin: 0 auto;
    gap: 1rem;
}

.site-title {
    color: var(--color-ink);
    font-weight: 800;
    letter-spacing: 0;
}

.site-title:hover {
    color: var(--color-primary);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 0.2rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.nav-menu a {
    display: inline-flex;
    align-items: center;
    min-height: 42px;
    padding: 0 0.75rem;
    border-radius: var(--radius);
    color: var(--color-muted);
    font-size: 0.95rem;
    font-weight: 700;
}

.nav-menu a:hover,
.nav-menu a.active {
    background: #eef4ff;
    color: var(--color-primary);
    text-decoration: none;
}

.language-switcher {
    display: inline-flex;
    flex: 0 0 auto;
    padding: 2px;
    border: 1px solid var(--color-line);
    border-radius: 6px;
    background: #f7fafc;
}

.language-switcher a {
    display: grid;
    place-items: center;
    width: 34px;
    height: 30px;
    border-radius: 4px;
    color: var(--color-muted);
    font-size: 0.72rem;
    font-weight: 800;
}

.language-switcher a:hover,
.language-switcher a.active {
    background: var(--color-paper);
    color: var(--color-primary);
    text-decoration: none;
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.1);
}

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: 1px solid var(--color-line);
    border-radius: var(--radius);
    background: var(--color-paper);
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    margin: 4px auto;
    border-radius: 999px;
    background: var(--color-ink);
}

.intro-section,
.page-hero {
    position: relative;
    overflow: hidden;
    background:
        linear-gradient(118deg, rgba(29, 78, 216, 0.14), rgba(255, 255, 255, 0.82) 48%, rgba(15, 118, 110, 0.12)),
        rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(10px);
}

.intro-section {
    padding: clamp(3.5rem, 8vw, 7rem) 0;
}

.page-hero {
    padding: clamp(3rem, 7vw, 5rem) 0;
}

.intro-section > .container,
.page-hero > .container {
    position: relative;
    z-index: 1;
}

.intro-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.6fr);
    gap: clamp(2rem, 5vw, 4rem);
    align-items: center;
}

.intro-copy {
    max-width: 760px;
}

.eyebrow,
.section-kicker,
.publication-status {
    margin-bottom: 0.7rem;
    color: var(--color-accent);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0;
    text-transform: uppercase;
}

.lead {
    max-width: 740px;
    margin-bottom: 1.6rem;
    color: #3b4d61;
    font-size: 1.2rem;
}

.action-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
}

.profile-links {
    margin-top: 0.9rem;
    font-size: 0.94rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 1.05rem;
    border: 1px solid var(--color-primary);
    border-radius: var(--radius);
    background: var(--color-primary);
    color: #ffffff;
    font-weight: 800;
}

.btn:hover {
    background: var(--color-primary-dark);
    color: #ffffff;
    text-decoration: none;
}

.btn-secondary {
    border-color: var(--color-line);
    background: var(--color-paper);
    color: var(--color-ink);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    background: #eef4ff;
    color: var(--color-primary);
}

.btn-muted {
    border-color: var(--color-line);
    background: #edf2f7;
    color: var(--color-muted);
    cursor: not-allowed;
}

.profile-panel,
.side-summary,
.topic-card,
.publication-item,
.contact-card {
    border: 1px solid var(--color-line);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.82);
    box-shadow: var(--shadow-soft);
}

.profile-panel {
    padding: 1.4rem;
}

.profile-panel img {
    display: block;
    width: min(220px, 100%);
    margin: 0 auto 1.2rem;
    border-radius: 50%;
}

.profile-facts {
    display: grid;
    gap: 0.8rem;
    margin: 0;
}

.profile-facts dt {
    padding-top: 0.8rem;
    border-top: 1px solid var(--color-line);
    color: var(--color-muted);
    font-size: 0.8rem;
    font-weight: 800;
    text-transform: uppercase;
}

.profile-facts dt:first-child {
    padding-top: 0;
    border-top: 0;
}

.profile-facts dd {
    margin: 0.15rem 0 0.2rem;
    color: var(--color-ink);
    font-weight: 700;
}

.section-band {
    padding: clamp(3rem, 6vw, 5rem) 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(8px);
}

.section-band.muted {
    background: rgba(245, 247, 251, 0.72);
}

.section-heading {
    max-width: 760px;
    margin-bottom: 1.5rem;
}

.section-heading.inline {
    margin-bottom: 0.9rem;
}

.two-column {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(2rem, 6vw, 5rem);
}

.content-grid {
    display: grid;
    grid-template-columns: minmax(240px, 0.38fr) minmax(0, 0.62fr);
    gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
}

.content-stack {
    display: grid;
    gap: 2rem;
}

.side-summary {
    position: sticky;
    top: 96px;
    padding: 1.3rem;
}

.clean-list,
.detail-list,
.link-list,
.tag-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.clean-list {
    display: grid;
    gap: 0.55rem;
    color: var(--color-muted);
}

.clean-list li::before {
    content: "";
    display: inline-block;
    width: 0.5rem;
    height: 0.5rem;
    margin-right: 0.6rem;
    border-radius: 50%;
    background: var(--color-accent);
    vertical-align: 0.08rem;
}

.detail-list {
    display: grid;
    gap: 0.95rem;
}

.detail-list li {
    display: grid;
    gap: 0.15rem;
    padding-left: 1rem;
    border-left: 3px solid var(--color-line);
}

.detail-list strong {
    color: var(--color-ink);
}

.detail-list span {
    color: var(--color-muted);
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag-list li,
.publication-links a,
.publication-links span {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 0 0.65rem;
    border-radius: var(--radius);
    background: #eef4ff;
    color: var(--color-primary);
    font-size: 0.85rem;
    font-weight: 800;
}

.publication-links a:hover {
    background: var(--color-primary);
    color: #ffffff;
    text-decoration: none;
}

.text-link {
    display: inline-flex;
    align-items: center;
    margin-top: 0.35rem;
    font-weight: 800;
}

.text-link::after {
    content: ">";
    margin-left: 0.45rem;
}

.timeline-list {
    display: grid;
    gap: 0.9rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.timeline-list li {
    display: grid;
    grid-template-columns: 8rem minmax(0, 1fr);
    gap: 1rem;
    align-items: start;
    padding: 1rem 0;
    border-bottom: 1px solid var(--color-line);
}

.timeline-list.compact li {
    padding: 0.75rem 0;
}

.timeline-list time {
    color: var(--color-warm);
    font-weight: 800;
}

.timeline-list span {
    color: var(--color-muted);
}

.publication-preview,
.card-grid,
.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}

.publication-preview {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-bottom: 1rem;
}

.topic-card,
.publication-item,
.contact-card {
    padding: 1.25rem;
}

.publications-list {
    display: grid;
    gap: 1rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.publication-item h3 {
    font-size: 1.2rem;
}

.graphical-abstract-link {
    display: block;
    margin-bottom: 1rem;
    border: 1px solid var(--color-line);
    border-radius: calc(var(--radius) - 2px);
    background: #ffffff;
    overflow: hidden;
}

.graphical-abstract-link:hover {
    border-color: var(--color-primary);
}

.publications-list .graphical-abstract-link {
    max-width: 720px;
    margin-right: auto;
    margin-left: auto;
}

.graphical-abstract {
    display: block;
    width: 100%;
    aspect-ratio: 2 / 1;
    object-fit: contain;
    background: #ffffff;
}

.publication-meta,
.contact-value {
    color: #3b4d61;
    font-weight: 700;
}

.publication-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    margin-top: 1rem;
}

.link-list {
    display: grid;
    gap: 0.55rem;
}

.link-list a,
.link-list span {
    display: inline-flex;
    color: var(--color-muted);
    font-weight: 700;
}

.docs-hero h1 {
    max-width: 900px;
    font-size: 3.5rem;
}

.breadcrumb {
    margin-bottom: 1rem;
    color: var(--color-muted);
    font-size: 0.9rem;
    font-weight: 700;
}

.breadcrumb a {
    color: var(--color-muted);
}

.docs-layout {
    display: grid;
    grid-template-columns: minmax(210px, 0.25fr) minmax(0, 0.75fr);
    gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
}

.docs-toc {
    position: sticky;
    top: 96px;
    padding: 1.1rem;
    border: 1px solid var(--color-line);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.88);
}

.docs-toc h2 {
    margin-bottom: 0.65rem;
    font-size: 1rem;
}

.docs-toc ol {
    display: grid;
    gap: 0.4rem;
    margin: 0;
    padding-left: 1.2rem;
}

.docs-toc a {
    color: var(--color-muted);
    font-size: 0.9rem;
    font-weight: 700;
}

.docs-content {
    min-width: 0;
}

.docs-section {
    padding-bottom: 2.5rem;
    scroll-margin-top: 96px;
}

.docs-section + .docs-section {
    padding-top: 2.5rem;
    border-top: 1px solid var(--color-line);
}

.docs-section h2 {
    font-size: 1.8rem;
}

.docs-section h3 {
    margin-top: 1.5rem;
    font-size: 1.2rem;
}

.docs-section li,
.docs-section dd {
    color: var(--color-muted);
}

.docs-section li + li {
    margin-top: 0.35rem;
}

.equation {
    max-width: 100%;
    margin: 1.2rem 0;
    padding: 1rem;
    border-left: 3px solid var(--color-accent);
    background: #f3faf8;
    overflow-x: auto;
    color: var(--color-ink);
    text-align: center;
}

.equation math {
    font-size: 1.08rem;
}

.callout {
    margin: 1.25rem 0;
    padding: 1rem 1.1rem;
    border: 1px solid #b8d4f8;
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius);
    background: #f3f7ff;
}

.callout.warning {
    border-color: #efd3a6;
    border-left-color: var(--color-warm);
    background: #fff9ed;
}

.callout strong {
    display: block;
    margin-bottom: 0.25rem;
}

.callout p:last-child {
    margin-bottom: 0;
}

.code-sample {
    position: relative;
    margin: 1.2rem 0;
    border: 1px solid #334155;
    border-radius: var(--radius);
    background: #17212f;
    overflow: hidden;
}

.code-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 38px;
    padding: 0.35rem 0.75rem;
    border-bottom: 1px solid #334155;
    color: #cbd5e1;
    font-size: 0.78rem;
    font-weight: 800;
}

.copy-button {
    min-height: 30px;
    padding: 0 0.65rem;
    border: 1px solid #64748b;
    border-radius: 6px;
    background: transparent;
    color: #f8fafc;
    cursor: pointer;
    font: inherit;
}

.copy-button:hover,
.copy-button:focus-visible {
    border-color: #bfdbfe;
    background: #263548;
}

.code-sample pre {
    margin: 0;
    padding: 1rem;
    overflow-x: auto;
    color: #e2e8f0;
    font: 0.88rem/1.65 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    tab-size: 4;
}

.docs-section > pre {
    max-width: 100%;
    margin: 1.2rem 0;
    padding: 1rem;
    border: 1px solid #334155;
    border-radius: var(--radius);
    background: #17212f;
    overflow-x: auto;
    color: #e2e8f0;
    font: 0.88rem/1.65 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    tab-size: 4;
}

.docs-section > pre code {
    font: inherit;
}

.workflow-list {
    display: grid;
    gap: 0;
    margin: 1.25rem 0;
    padding: 0;
    list-style: none;
    counter-reset: workflow;
}

.workflow-list li {
    position: relative;
    min-height: 54px;
    padding: 0.8rem 0 0.8rem 3.2rem;
    border-left: 2px solid var(--color-line);
    counter-increment: workflow;
}

.workflow-list li::before {
    content: counter(workflow);
    position: absolute;
    top: 0.65rem;
    left: -1.15rem;
    display: grid;
    place-items: center;
    width: 2.2rem;
    height: 2.2rem;
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    background: var(--color-paper);
    color: var(--color-primary);
    font-weight: 800;
}

.data-levels {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
    margin: 1.25rem 0;
    border: 1px solid var(--color-line);
    background: var(--color-line);
}

.data-levels > div {
    min-width: 0;
    padding: 1rem;
    background: var(--color-paper);
}

.data-levels span,
.data-levels strong {
    display: block;
}

.data-levels span {
    color: var(--color-accent);
    font-size: 0.72rem;
    font-weight: 800;
    text-transform: uppercase;
}

.data-levels strong {
    margin: 0.15rem 0 0.35rem;
    font-size: 1.15rem;
}

.data-levels p,
.data-provenance-note {
    margin: 0;
    color: var(--color-muted);
    font-size: 0.86rem;
}

.cross-chapter-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem 1.25rem;
    margin: 1rem 0;
}

.cross-chapter-links a {
    font-size: 0.88rem;
    font-weight: 800;
}

.research-workflow {
    padding: 1.5rem 0 0;
}

.research-flow-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 1.25rem;
    margin: 1.5rem 0 0;
    padding: 0;
    list-style: none;
}

.research-flow-grid li {
    position: relative;
    min-width: 0;
    padding: 1rem 0.2rem 0.4rem;
    border-top: 4px solid #0f766e;
}

.research-flow-grid li:nth-child(2) {
    border-color: #2563eb;
}

.research-flow-grid li:nth-child(3) {
    border-color: #7c3aed;
}

.research-flow-grid li:nth-child(4) {
    border-color: #c2410c;
}

.research-flow-grid li:nth-child(5) {
    border-color: #15803d;
}

.research-flow-grid li:not(:last-child)::after {
    content: "";
    position: absolute;
    top: -9px;
    right: -0.95rem;
    width: 0.65rem;
    height: 0.65rem;
    border-top: 2px solid #94a3b8;
    border-right: 2px solid #94a3b8;
    transform: rotate(45deg);
}

.flow-step-number {
    color: #94a3b8;
    font-size: 0.76rem;
    font-weight: 800;
}

.flow-phase {
    margin: 0.55rem 0 0.15rem;
    color: var(--color-accent);
    font-size: 0.7rem;
    font-weight: 800;
    text-transform: uppercase;
}

.research-flow-grid h3 {
    margin: 0;
    font-size: 1rem;
}

.research-flow-grid li > p:not(.flow-phase) {
    min-height: 7.5em;
    margin: 0.55rem 0 0.75rem;
    color: var(--color-muted);
    font-size: 0.82rem;
}

.flow-tools {
    display: flex;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 0.25rem 0.55rem;
}

.flow-tools a {
    font-size: 0.73rem;
    font-weight: 800;
}

.research-feedback {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 1rem;
    margin-top: 1.25rem;
    padding: 0.8rem 1rem;
    border-left: 4px solid var(--color-accent);
    background: #f1f5f9;
}

.research-feedback strong {
    color: var(--color-accent);
    font-size: 0.78rem;
    text-transform: uppercase;
}

.research-feedback span {
    color: var(--color-muted);
    font-size: 0.86rem;
}

.site-search-link {
    flex: 0 0 auto;
    padding: 0.42rem 0.65rem;
    border-left: 1px solid var(--color-line);
    color: var(--color-muted);
    font-size: 0.82rem;
    font-weight: 800;
    text-decoration: none;
}

.site-search-link:hover,
.site-search-link:focus-visible {
    color: var(--color-accent);
}

.search-page {
    max-width: 920px;
}

.site-search-form {
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--color-line);
}

.site-search-form label,
.glossary-filter label {
    display: block;
    margin-bottom: 0.45rem;
    color: var(--color-ink);
    font-size: 0.88rem;
    font-weight: 800;
}

.site-search-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.65rem;
}

.site-search-row input,
.glossary-filter input {
    width: 100%;
    min-width: 0;
    padding: 0.78rem 0.9rem;
    border: 1px solid var(--color-line-strong);
    border-radius: var(--radius);
    background: var(--color-paper);
    color: var(--color-ink);
    font: inherit;
}

.site-search-row input:focus,
.glossary-filter input:focus {
    border-color: var(--color-accent);
    outline: 3px solid rgba(37, 99, 235, 0.14);
}

.site-search-row button {
    min-width: 6rem;
    padding: 0.75rem 1rem;
    border: 1px solid var(--color-accent);
    border-radius: var(--radius);
    background: var(--color-accent);
    color: #ffffff;
    font: inherit;
    font-weight: 800;
    cursor: pointer;
}

.search-status {
    margin: 1.25rem 0 0;
    color: var(--color-muted);
    font-size: 0.92rem;
}

.site-search-results {
    margin: 0;
    padding: 0;
    list-style: none;
}

.site-search-results li {
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--color-line);
}

.site-search-results a {
    color: var(--color-ink);
    font-size: 1.12rem;
    font-weight: 850;
    text-decoration-thickness: 1px;
    text-underline-offset: 0.18em;
}

.site-search-results p {
    margin: 0.35rem 0 0;
    color: var(--color-muted);
}

.glossary-filter {
    position: sticky;
    z-index: 2;
    top: 84px;
    margin-bottom: 1.75rem;
    padding: 0.85rem;
    border: 1px solid var(--color-line);
    background: rgba(255, 255, 255, 0.96);
}

.glossary-filter p {
    margin: 0.4rem 0 0;
    color: var(--color-muted);
    font-size: 0.82rem;
}

.glossary-list > div[hidden],
.docs-section[hidden] {
    display: none;
}

.data-table-wrap {
    margin: 1.2rem 0;
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.92rem;
}

.data-table th,
.data-table td {
    padding: 0.75rem;
    border: 1px solid var(--color-line);
    text-align: left;
    vertical-align: top;
}

.data-table th {
    background: #eef4ff;
}

.data-table td {
    color: var(--color-muted);
}

.reference-list {
    padding-left: 1.3rem;
    font-size: 0.93rem;
}

.page-links {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}

.page-links .topic-card {
    display: flex;
    flex-direction: column;
}

.page-links .text-link {
    margin-top: auto;
}

.method-sequence {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.method-sequence li {
    min-width: 0;
}

.method-sequence a {
    display: grid;
    grid-template-columns: 2.4rem minmax(0, 1fr);
    gap: 0.8rem;
    height: 100%;
    padding: 1rem;
    border: 1px solid var(--color-line);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.84);
    color: var(--color-ink);
}

.method-sequence a:hover {
    border-color: var(--color-primary);
    text-decoration: none;
}

.method-number {
    display: grid;
    place-items: center;
    width: 2.4rem;
    height: 2.4rem;
    border-radius: 50%;
    background: #eef4ff;
    color: var(--color-primary);
    font-size: 0.82rem;
    font-weight: 800;
}

.method-sequence strong,
.method-sequence span {
    display: block;
}

.method-sequence span {
    margin-top: 0.15rem;
    color: var(--color-muted);
    font-size: 0.88rem;
}

.track-overview {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(2rem, 6vw, 5rem);
}

.track-overview > div {
    min-width: 0;
}

.track-label {
    margin-bottom: 0.45rem;
    color: var(--color-primary);
    font-size: 0.78rem;
    font-weight: 800;
    text-transform: uppercase;
}

.track-label.data {
    color: var(--color-accent);
}

.workflow-inline {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    margin-top: 1.25rem;
}

.workflow-inline span {
    padding: 0.35rem 0.55rem;
    border: 1px solid #b8d4f8;
    border-radius: 5px;
    background: #f3f7ff;
    color: var(--color-primary);
    font-size: 0.78rem;
    font-weight: 800;
}

.workflow-inline.data span {
    border-color: #b8ded7;
    background: #f3faf8;
    color: var(--color-accent);
}

.data-sequence .method-number {
    background: #edf7f5;
    color: var(--color-accent);
}

.data-sequence a:hover {
    border-color: var(--color-accent);
}

.track-switcher {
    border-bottom: 1px solid var(--color-line);
    background: #f7fafc;
}

.track-switcher-inner {
    display: flex;
    gap: 0.4rem;
    padding: 0.55rem 0;
    overflow-x: auto;
}

.track-switcher a {
    flex: 0 0 auto;
    padding: 0.35rem 0.65rem;
    border-radius: 5px;
    color: var(--color-muted);
    font-size: 0.8rem;
    font-weight: 800;
}

.track-switcher a:hover,
.track-switcher a.active {
    background: #edf7f5;
    color: var(--color-accent);
    text-decoration: none;
}

.methods-switcher {
    border-bottom: 1px solid var(--color-line);
    background: rgba(255, 255, 255, 0.92);
}

.methods-switcher-inner {
    display: flex;
    gap: 0.35rem;
    padding: 0.65rem 0;
    overflow-x: auto;
    scrollbar-width: thin;
}

.docs-content,
.docs-section,
.code-sample,
.data-table-wrap {
    min-width: 0;
    max-width: 100%;
}

.methods-switcher a {
    flex: 0 0 auto;
    padding: 0.35rem 0.65rem;
    border-radius: 6px;
    color: var(--color-muted);
    font-size: 0.82rem;
    font-weight: 800;
}

.methods-switcher a:hover,
.methods-switcher a.active {
    background: #eef4ff;
    color: var(--color-primary);
    text-decoration: none;
}

.tool-summary {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
    margin: 1.4rem 0 0;
    border: 1px solid var(--color-line);
    border-radius: var(--radius);
    background: var(--color-line);
    overflow: hidden;
}

.tool-summary > div {
    padding: 0.85rem;
    background: rgba(255, 255, 255, 0.92);
}

.tool-summary dt {
    color: var(--color-accent);
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
}

.tool-summary dd {
    margin: 0.2rem 0 0;
    color: var(--color-ink);
    font-size: 0.9rem;
    font-weight: 700;
}

.formula-inline {
    white-space: nowrap;
    color: var(--color-ink);
    font-family: ui-serif, Georgia, serif;
}

.comparison-key {
    display: inline-flex;
    align-items: center;
    min-height: 26px;
    padding: 0 0.5rem;
    border-radius: 5px;
    background: #edf7f5;
    color: var(--color-accent);
    font-size: 0.78rem;
    font-weight: 800;
}

.compact-band {
    padding: 1.5rem 0;
    border-top: 1px solid var(--color-line);
    border-bottom: 1px solid var(--color-line);
    background: rgba(255, 255, 255, 0.72);
}

.link-row,
.section-action {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem 1.4rem;
}

.section-action {
    justify-content: space-between;
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--color-line);
}

.section-action p {
    max-width: 680px;
    margin: 0;
}

.collaboration-card {
    grid-column: 1 / -1;
}

.timeline-note {
    display: block;
    margin-top: 0.3rem;
    color: var(--color-muted);
    font-size: 0.9rem;
}

.search-panel {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 0.8fr);
    align-items: end;
    gap: 2rem;
}

.search-panel h2,
.search-panel p {
    margin-bottom: 0.35rem;
}

.search-control label {
    display: block;
    margin-bottom: 0.35rem;
    color: var(--color-ink);
    font-size: 0.82rem;
    font-weight: 800;
}

.search-control input {
    width: 100%;
    min-height: 46px;
    padding: 0.65rem 0.8rem;
    border: 1px solid var(--color-line);
    border-radius: 6px;
    background: var(--color-paper);
    color: var(--color-ink);
    font: inherit;
}

.search-control input:focus {
    border-color: var(--color-primary);
    outline: 3px solid rgba(29, 78, 216, 0.15);
}

.search-status {
    min-height: 1.2rem;
    margin: 0.3rem 0 0;
    text-align: right;
    font-size: 0.82rem;
}

.topic-detail-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    border: 1px solid var(--color-line);
    background: var(--color-line);
}

.topic-detail-grid a {
    display: grid;
    gap: 0.25rem;
    min-height: 116px;
    padding: 1.2rem;
    background: var(--color-paper);
}

.topic-detail-grid a:hover {
    background: #f7faff;
    text-decoration: none;
}

.topic-detail-grid span,
.method-review {
    color: var(--color-muted);
    font-size: 0.9rem;
}

.filter-toolbar,
.filter-toolbar > div {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.filter-toolbar > span {
    margin-right: 0.4rem;
    font-weight: 800;
}

.filter-toolbar button {
    min-height: 38px;
    padding: 0.35rem 0.75rem;
    border: 1px solid var(--color-line);
    border-radius: 6px;
    background: var(--color-paper);
    color: var(--color-muted);
    font: inherit;
    font-size: 0.88rem;
    font-weight: 800;
    cursor: pointer;
}

.filter-toolbar button:hover,
.filter-toolbar button[aria-pressed="true"] {
    border-color: var(--color-primary);
    background: #eef4ff;
    color: var(--color-primary);
}

.filter-toolbar > p {
    margin: 0 0 0 auto;
    font-size: 0.85rem;
}

.publication-summary {
    margin-bottom: 0.9rem;
    font-size: 0.94rem;
}

.calculation-example {
    padding-top: 1.8rem;
    border-top: 2px solid var(--color-accent);
}

.example-label {
    margin-bottom: 0.3rem;
    color: var(--color-accent);
    font-size: 0.76rem;
    font-weight: 800;
    text-transform: uppercase;
}

.calculation-summary {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1px;
    margin: 1.2rem 0;
    border: 1px solid var(--color-line);
    background: var(--color-line);
}

.calculation-summary > div {
    min-width: 0;
    padding: 0.85rem;
    background: var(--color-paper);
}

.calculation-summary span,
.calculation-summary strong {
    display: block;
}

.calculation-summary span {
    color: var(--color-muted);
    font-size: 0.76rem;
    font-weight: 800;
}

.calculation-summary strong {
    margin-top: 0.2rem;
    overflow-wrap: anywhere;
    font-size: 0.9rem;
}

.result-figure-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
    margin: 1.4rem 0;
}

.result-figure-grid figure {
    min-width: 0;
    margin: 0;
}

.result-figure-grid img {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 10;
    border: 1px solid var(--color-line);
    background: #ffffff;
    object-fit: contain;
}

.result-figure-grid figcaption {
    padding: 0.55rem 0.1rem 0;
    color: var(--color-muted);
    font-size: 0.82rem;
    line-height: 1.55;
}

.result-downloads {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 1rem 0;
}

.result-downloads a {
    padding: 0.38rem 0.65rem;
    border: 1px solid var(--color-line);
    border-radius: 5px;
    background: var(--color-paper);
    font-size: 0.8rem;
    font-weight: 800;
}

.result-downloads a:hover {
    border-color: var(--color-primary);
    background: #eef4ff;
    text-decoration: none;
}

.molecular-visualization {
    margin: 1.5rem 0;
    border: 1px solid var(--color-line);
    background: var(--color-paper);
}

.molecular-visualization:fullscreen {
    display: flex;
    flex-direction: column;
    width: 100vw;
    height: 100vh;
    background: #fff;
}

.molecular-visualization:fullscreen .molecular-viewer-canvas {
    flex: 1;
    min-height: 0;
}

.molecular-viewer-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.65rem;
    border-bottom: 1px solid var(--color-line);
    background: #f8fafc;
}

.viewer-field-controls,
.viewer-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.viewer-field-controls button,
.viewer-actions button,
.viewer-actions select {
    min-height: 34px;
    padding: 0.35rem 0.6rem;
    border: 1px solid #cbd5e1;
    border-radius: 5px;
    background: #fff;
    color: var(--color-text);
    font: inherit;
    font-size: 0.78rem;
    font-weight: 750;
}

.viewer-field-controls button[aria-pressed="true"] {
    border-color: var(--color-primary);
    background: #eaf1ff;
    color: var(--color-primary);
}

.viewer-field-controls button:disabled {
    cursor: progress;
    opacity: 0.65;
}

.viewer-actions label {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.75rem;
    font-weight: 750;
}

.molecular-viewer-canvas {
    position: relative;
    width: 100%;
    height: clamp(360px, 48vw, 560px);
    overflow: hidden;
    background: #fff;
    touch-action: none;
}

.molecular-viewer-canvas canvas {
    display: block;
}

.viewer-status {
    position: absolute;
    z-index: 2;
    top: 50%;
    left: 50%;
    margin: 0;
    padding: 0.5rem 0.7rem;
    transform: translate(-50%, -50%);
    border: 1px solid var(--color-line);
    background: rgb(255 255 255 / 92%);
    color: var(--color-muted);
    font-size: 0.8rem;
}

.molecular-visualization[data-viewer-state="ready"] .viewer-status {
    display: none;
}

.molecular-visualization[data-viewer-state="error"] .viewer-status {
    border-color: #dc2626;
    color: #991b1b;
}

.viewer-readout {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-top: 1px solid var(--color-line);
}

.viewer-readout > * {
    min-width: 0;
    padding: 0.65rem;
    border-right: 1px solid var(--color-line);
    font-size: 0.76rem;
}

.viewer-readout > :last-child {
    border-right: 0;
}

.viewer-help {
    margin: 0;
    padding: 0.6rem 0.75rem;
    border-top: 1px solid var(--color-line);
    color: var(--color-muted);
    font-size: 0.76rem;
}

.field-legend {
    padding: 0.65rem 0.75rem;
    border-top: 1px solid var(--color-line);
    font-size: 0.78rem;
}

.field-legend p {
    margin: 0;
}

.scientific-colorbar {
    display: grid;
    grid-template-columns: auto minmax(160px, 1fr) auto;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.4rem;
}

.scientific-colorbar .colorbar-gradient {
    height: 12px;
    border: 1px solid rgb(15 23 42 / 20%);
    background: linear-gradient(to right, #2563eb 0%, #22c55e 50%, #dc2626 100%);
}

.scientific-colorbar.esp .colorbar-gradient {
    background: linear-gradient(to right, #dc2626 0%, #f8fafc 50%, #2563eb 100%);
}

.colorbar-caption {
    margin: 0.3rem 0 0;
    text-align: center;
    color: var(--color-muted);
    font-size: 0.72rem;
}

.figure-interpretation {
    margin: 1.25rem 0;
    padding-top: 1rem;
    border-top: 1px solid var(--color-line);
}

.figure-interpretation h3 {
    margin: 0 0 0.55rem;
    font-size: 1.05rem;
}

.figure-interpretation p,
.figure-interpretation li {
    font-size: 0.9rem;
}

.figure-interpretation ul {
    margin-bottom: 0;
}

.news-list,
.glossary-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.news-list li {
    display: grid;
    grid-template-columns: 110px minmax(0, 1fr);
    gap: 1.5rem;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--color-line);
}

.news-list time,
.news-category {
    color: var(--color-accent);
    font-size: 0.8rem;
    font-weight: 800;
}

.news-category {
    margin-bottom: 0.2rem;
    text-transform: uppercase;
}

.glossary-list > div {
    display: grid;
    grid-template-columns: minmax(150px, 0.35fr) minmax(0, 1fr);
    gap: 1rem;
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--color-line);
}

.glossary-list dt {
    font-weight: 800;
}

.glossary-list dd {
    margin: 0;
    color: var(--color-muted);
}

@media (max-width: 1080px) {
    .nav-toggle {
        display: inline-block;
        order: 3;
    }

    .language-switcher {
        margin-left: auto;
    }

    .nav-menu {
        position: absolute;
        top: 72px;
        right: 1rem;
        left: 1rem;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 0.6rem;
        border: 1px solid var(--color-line);
        border-radius: var(--radius);
        background: var(--color-paper);
        box-shadow: var(--shadow-soft);
    }

    .nav-menu.is-open {
        display: flex;
    }

    .nav-menu a {
        justify-content: center;
    }

    .site-search-link {
        margin-left: auto;
        border-left: 0;
    }
}

.site-footer {
    border-top: 1px solid var(--color-line);
    background: var(--color-ink);
    color: #ffffff;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-height: 92px;
}

.site-footer p {
    margin: 0;
    color: rgba(255, 255, 255, 0.78);
}

.site-footer a {
    color: #bfdbfe;
    font-weight: 800;
}

@media (max-width: 860px) {
    h1 {
        font-size: 3.2rem;
    }

    h2 {
        font-size: 1.85rem;
    }

    .nav-toggle {
        display: inline-block;
    }

    .nav-menu {
        position: absolute;
        top: 72px;
        right: 1rem;
        left: 1rem;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 0.6rem;
        border: 1px solid var(--color-line);
        border-radius: var(--radius);
        background: var(--color-paper);
        box-shadow: var(--shadow-soft);
    }

    .nav-menu.is-open {
        display: flex;
    }

    .nav-menu a {
        justify-content: center;
    }

    .intro-grid,
    .two-column,
    .content-grid,
    .docs-layout,
    .publication-preview,
    .card-grid,
    .contact-grid,
    .page-links,
    .method-sequence,
    .tool-summary,
    .track-overview {
        grid-template-columns: 1fr;
    }

    .search-panel,
    .topic-detail-grid,
    .result-figure-grid,
    .data-levels {
        grid-template-columns: 1fr;
    }

    .research-flow-grid {
        grid-template-columns: 1fr;
        gap: 0.9rem;
    }

    .research-flow-grid li {
        padding: 0.8rem 0 0.8rem 1rem;
        border-top: 0;
        border-left: 4px solid #0f766e;
    }

    .research-flow-grid li:not(:last-child)::after {
        top: auto;
        right: auto;
        bottom: -0.65rem;
        left: -0.4rem;
        transform: rotate(135deg);
    }

    .research-flow-grid li > p:not(.flow-phase) {
        min-height: 0;
    }

    .research-feedback {
        grid-template-columns: 1fr;
        gap: 0.25rem;
    }

    .calculation-summary {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .molecular-viewer-toolbar {
        align-items: flex-start;
        flex-direction: column;
    }

    .viewer-readout {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .viewer-readout > :nth-child(2) {
        border-right: 0;
    }

    .viewer-readout > :nth-child(-n + 2) {
        border-bottom: 1px solid var(--color-line);
    }

    .side-summary,
    .docs-toc {
        position: static;
    }
}

@media (max-width: 560px) {
    h1 {
        font-size: 2.45rem;
    }

    h2 {
        font-size: 1.55rem;
    }

    .docs-hero h1 {
        font-size: 2.2rem;
    }

    .lead {
        font-size: 1.05rem;
    }

    .formula-inline {
        white-space: normal;
        overflow-wrap: anywhere;
    }

    .container,
    .navbar {
        width: min(100% - 1.25rem, var(--content-width));
    }

    .intro-section,
    .page-hero {
        padding: 2.5rem 0;
    }

    .section-band {
        padding: 2.5rem 0;
    }

    .timeline-list li {
        grid-template-columns: 1fr;
        gap: 0.2rem;
    }

    .news-list li,
    .glossary-list > div {
        grid-template-columns: 1fr;
        gap: 0.25rem;
    }

    .filter-toolbar > p {
        width: 100%;
        margin-left: 0;
    }

    .site-search-row {
        grid-template-columns: 1fr;
    }

    .site-search-row button {
        width: 100%;
    }

    .glossary-filter {
        position: static;
    }

    .calculation-summary {
        grid-template-columns: 1fr;
    }

    .molecular-viewer-canvas {
        height: 390px;
    }

    .viewer-field-controls,
    .viewer-actions {
        width: 100%;
    }

    .viewer-field-controls button {
        flex: 1 1 calc(50% - 0.35rem);
    }

    .footer-inner {
        flex-direction: column;
        justify-content: center;
        text-align: center;
    }
}