:root {
    --paper: #f5f3ee;
    --surface: #fffefa;
    --surface-muted: #ece8df;
    --ink: #182229;
    --ink-soft: #536168;
    --line: #d9d4ca;
    --accent: #7a1f2b;
    --accent-dark: #5b1720;
    --accent-pale: #f3e8e8;
    --serif: Georgia, "Times New Roman", "Noto Serif SC", "Songti SC", serif;
    --sans: Inter, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    --shadow: 0 18px 50px rgba(24, 34, 41, 0.08);
    --content: 1040px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

html[data-active-lang="en"] [data-lang="zh"],
html[data-active-lang="zh"] [data-lang="en"] {
    display: none !important;
}

body {
    margin: 0;
    color: var(--ink);
    background:
        linear-gradient(90deg, transparent 0, transparent calc(50% - 580px), rgba(122, 31, 43, 0.035) calc(50% - 580px), rgba(122, 31, 43, 0.035) calc(50% - 579px), transparent calc(50% - 579px)),
        var(--paper);
    font-family: var(--sans);
    font-size: 18px;
    line-height: 1.68;
    text-rendering: optimizeLegibility;
}

a {
    color: inherit;
}

img,
video {
    max-width: 100%;
}

button,
a {
    -webkit-tap-highlight-color: transparent;
}

.skip-link {
    position: fixed;
    left: 1rem;
    top: -5rem;
    z-index: 100;
    padding: 0.7rem 1rem;
    background: var(--ink);
    color: white;
    text-decoration: none;
}

.skip-link:focus {
    top: 1rem;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    border-top: 3px solid var(--accent);
    border-bottom: 1px solid rgba(24, 34, 41, 0.1);
    background: rgba(245, 243, 238, 0.94);
    backdrop-filter: blur(16px);
}

.nav-shell {
    width: min(var(--content), calc(100% - 3rem));
    min-height: 76px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 2rem;
}

.nav-area {
    display: flex;
    align-items: center;
    gap: 1.8rem;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 1.65rem;
}

.site-nav a {
    position: relative;
    padding: 0.45rem 0;
    color: var(--ink-soft);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 650;
    letter-spacing: 0.035em;
}

.site-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    right: 100%;
    bottom: 0.2rem;
    height: 1px;
    background: var(--accent);
    transition: right 180ms ease;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
    color: var(--accent);
}

.site-nav a:hover::after,
.site-nav a[aria-current="page"]::after {
    right: 0;
}

.language-toggle,
.menu-toggle {
    border: 1px solid var(--line);
    background: transparent;
    color: var(--ink);
    font: inherit;
    cursor: pointer;
}

.language-toggle {
    min-width: 72px;
    padding: 0.47rem 0.72rem;
    font-size: 0.88rem;
    font-weight: 700;
    letter-spacing: 0.03em;
}

.language-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    padding: 0;
    font-size: 1.2rem;
}

.page-shell {
    width: min(var(--content), calc(100% - 3rem));
    margin: 0 auto;
}

.hero {
    min-height: 480px;
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    align-items: center;
    gap: clamp(3rem, 7vw, 5.5rem);
    padding: 4rem 0 4.5rem;
}

.portrait-wrap {
    position: relative;
    width: 260px;
}

.portrait-wrap::before {
    display: none;
}

.portrait {
    position: relative;
    display: block;
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    object-position: center 32%;
    border: 1px solid var(--line);
    box-shadow: 0 10px 28px rgba(24, 34, 41, 0.08);
}

.eyebrow {
    margin: 0 0 0.8rem;
    color: var(--accent);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.06em;
}

.hero h1,
.page-intro h1 {
    margin: 0;
    font-family: var(--serif);
    font-weight: 600;
    letter-spacing: -0.035em;
    line-height: 1.04;
}

.hero h1 {
    font-size: clamp(2.6rem, 4.5vw, 3.25rem);
}

.hero-role,
.hero-affiliation {
    margin: 1.05rem 0 0.35rem;
    color: var(--ink);
    font-family: var(--serif);
    font-size: 1.22rem;
}

.hero-affiliation {
    max-width: 680px;
    margin-top: 0;
}

.hero-statement {
    max-width: 690px;
    margin: 1.5rem 0 0;
    color: var(--ink-soft);
    font-family: var(--sans);
    font-size: 1rem;
    line-height: 1.75;
}

.hero-email {
    margin: 1.35rem 0 0;
    color: var(--ink);
    font-size: 0.95rem;
    font-weight: 650;
    letter-spacing: 0.01em;
}

.link-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
    margin-top: 0.55rem;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.55rem 0;
    border-bottom: 1px solid var(--line);
    color: var(--ink);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 700;
}

.text-link:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.page-intro {
    padding: 4.25rem 0 2.6rem;
    border-bottom: 1px solid var(--line);
}

.page-intro h1 {
    font-size: clamp(2.4rem, 4.5vw, 3.2rem);
}

.page-intro p:last-child {
    max-width: 730px;
    margin: 1.25rem 0 0;
    color: var(--ink-soft);
    font-family: var(--sans);
    font-size: 1rem;
    line-height: 1.75;
}

.editorial-section {
    display: grid;
    grid-template-columns: 190px minmax(0, 1fr);
    gap: clamp(2rem, 6vw, 5rem);
    padding: 4rem 0;
    border-top: 1px solid var(--line);
}

.hero + .editorial-section {
    border-top-color: var(--ink);
}

.section-label {
    margin: 0;
    font-family: var(--serif);
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: 0;
}

.section-label::before {
    content: "";
    display: block;
    width: 42px;
    height: 2px;
    margin-bottom: 0.85rem;
    background: var(--accent);
}

.prose {
    max-width: 800px;
}

.prose p {
    margin: 0 0 1.35rem;
    font-size: 1rem;
}

.prose p:first-child {
    font-family: var(--sans);
    font-size: 1rem;
    line-height: 1.68;
}

.experience-list-simple {
    margin: 0;
    padding-left: 1.25rem;
}

.experience-list-simple li {
    margin: 0.65rem 0;
    padding-left: 0.25rem;
    color: var(--ink-soft);
    font-size: 1rem;
}

.experience-list-simple li::marker {
    color: var(--accent);
}

.experience-list-simple strong {
    color: var(--ink);
    font-weight: 750;
}

.profile-details {
    display: grid;
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: clamp(1.8rem, 4vw, 3.2rem);
    margin-top: 2.2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--line);
}

.profile-details h3 {
    margin: 0 0 0.75rem;
    font-family: var(--serif);
    font-size: 1.05rem;
    font-weight: 600;
}

.admissions {
    margin: 0 0 6rem;
    padding: clamp(2rem, 4vw, 3.2rem);
    border-top: 3px solid var(--accent);
    background: var(--surface-muted);
}

.admissions-header {
    display: grid;
    grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr);
    gap: 3rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid rgba(24, 34, 41, 0.18);
}

.admissions h2 {
    margin: 0;
    font-family: var(--serif);
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 600;
    line-height: 1.12;
}

.admissions-lead {
    margin: 0;
    color: var(--ink-soft);
    font-size: 1rem;
}

.admissions-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2.4rem;
    padding-top: 2.5rem;
}

.admissions-grid h3 {
    margin: 0 0 0.9rem;
    font-family: var(--serif);
    font-size: 1.08rem;
}

.admissions-grid p,
.admissions-grid li {
    color: var(--ink-soft);
    font-size: 0.94rem;
}

.admissions-grid p {
    margin: 0 0 1rem;
}

.admissions-grid ul {
    margin: 0;
    padding-left: 1.1rem;
}

.admissions-grid li + li {
    margin-top: 0.5rem;
}

.email-callout {
    display: inline-block;
    margin-top: 0.25rem;
    color: var(--accent);
    font-weight: 800;
    overflow-wrap: anywhere;
}

.projects-list {
    display: grid;
    gap: 1.5rem;
    padding: 3.5rem 0 6rem;
}

.project-note {
    margin: 0 0 0.5rem;
    color: var(--ink-soft);
    font-size: 0.84rem;
}

.project-card {
    display: grid;
    grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1.2fr);
    min-height: 330px;
    overflow: hidden;
    border: 1px solid var(--line);
    background: var(--surface);
    transition: border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.project-card:hover {
    transform: translateY(-2px);
    border-color: rgba(122, 31, 43, 0.45);
    box-shadow: var(--shadow);
}

.project-card.no-media {
    grid-template-columns: 1fr;
    min-height: auto;
}

.project-media {
    min-height: 330px;
    display: grid;
    place-items: center;
    overflow: hidden;
    background: #111a20;
}

.project-media img,
.project-media video {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.project-media img {
    background: #eff0ee;
}

.project-media-light {
    background: #f4f4f1;
}

.project-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: clamp(1.6rem, 4vw, 3rem);
}

.project-venue {
    margin: 0 0 0.75rem;
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.11em;
    text-transform: uppercase;
}

.project-title {
    margin: 0;
    font-family: var(--serif);
    font-size: clamp(1.28rem, 1.8vw, 1.65rem);
    font-weight: 600;
    line-height: 1.25;
}

.project-authors {
    margin: 1.15rem 0 0;
    color: var(--ink-soft);
    font-size: 0.92rem;
    line-height: 1.65;
}

.me {
    color: var(--ink);
    font-weight: 800;
}

.project-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    margin-top: 1.5rem;
}

.project-links a {
    padding: 0.48rem 0.78rem;
    border: 1px solid var(--line);
    color: var(--ink);
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 750;
}

.project-links a:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.publication-list {
    padding: 3.5rem 0 6rem;
}

.publication-year {
    display: grid;
    grid-template-columns: 140px minmax(0, 1fr);
    gap: 2rem;
    padding: 2.5rem 0;
    border-bottom: 1px solid var(--line);
}

.publication-year:first-child {
    padding-top: 0;
}

.publication-year h2 {
    margin: 0;
    color: var(--accent);
    font-family: var(--serif);
    font-size: 2rem;
    font-weight: 600;
}

.publication-items {
    margin: 0;
    padding: 0;
    list-style: none;
    counter-reset: papers;
}

.publication-entry {
    position: relative;
    padding: 0 0 1.8rem 2.45rem;
    counter-increment: papers;
}

.publication-entry:last-child {
    padding-bottom: 0;
}

.publication-entry::before {
    content: counter(papers, decimal-leading-zero);
    position: absolute;
    left: 0;
    top: 0.16rem;
    color: #8a9397;
    font-family: var(--serif);
    font-size: 0.82rem;
}

.publication-entry h3 {
    margin: 0;
    font-family: var(--serif);
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.45;
}

.publication-entry h3 a {
    text-decoration-color: rgba(122, 31, 43, 0.25);
    text-decoration-thickness: 1px;
    text-underline-offset: 0.2em;
}

.publication-entry h3 a:hover {
    color: var(--accent);
    text-decoration-color: var(--accent);
}

.publication-entry p {
    margin: 0.32rem 0 0;
    color: var(--ink-soft);
    font-size: 0.9rem;
    line-height: 1.55;
}

.publication-entry .publication-meta {
    color: var(--accent-dark);
    font-size: 0.82rem;
    font-weight: 750;
}

.site-footer {
    border-top: 1px solid var(--ink);
    background: var(--ink);
    color: rgba(255, 255, 255, 0.8);
}

.footer-shell {
    width: min(var(--content), calc(100% - 3rem));
    min-height: 150px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.footer-shell p {
    margin: 0;
    font-size: 0.84rem;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1.25rem;
}

.footer-links a {
    color: white;
    text-decoration-color: rgba(255, 255, 255, 0.3);
    text-underline-offset: 0.2em;
    font-size: 0.82rem;
}

.footer-links a:hover {
    text-decoration-color: white;
}

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 4px;
}

@media (max-width: 900px) {
    .nav-shell {
        min-height: 68px;
    }

    .menu-toggle {
        display: inline-grid;
        place-items: center;
    }

    .nav-area {
        gap: 0.7rem;
    }

    .site-nav {
        position: absolute;
        left: 0;
        right: 0;
        top: 100%;
        display: none;
        padding: 1.1rem 1.5rem 1.4rem;
        border-bottom: 1px solid var(--line);
        background: var(--paper);
        box-shadow: 0 14px 30px rgba(24, 34, 41, 0.09);
    }

    .site-nav.is-open {
        display: grid;
        gap: 0.35rem;
    }

    .site-nav a {
        padding: 0.65rem 0;
    }

    .site-nav a::after {
        display: none;
    }

    .hero {
        min-height: auto;
        grid-template-columns: 235px minmax(0, 1fr);
        gap: 3rem;
        padding: 3.5rem 0 4rem;
    }

    .hero h1 {
        font-size: clamp(2.5rem, 6vw, 3.1rem);
    }

    .portrait-wrap {
        width: 235px;
    }

    .editorial-section {
        grid-template-columns: 160px minmax(0, 1fr);
        gap: 2.5rem;
    }

    .admissions-header,
    .admissions-grid {
        grid-template-columns: 1fr;
        gap: 1.8rem;
    }

    .project-card {
        grid-template-columns: minmax(220px, 0.7fr) minmax(0, 1.3fr);
    }
}

@media (max-width: 700px) {
    body {
        line-height: 1.68;
    }

    .nav-shell,
    .page-shell,
    .footer-shell {
        width: min(100% - 2rem, var(--content));
    }

    .language-toggle {
        min-width: 58px;
        padding-inline: 0.55rem;
    }

    .hero {
        grid-template-columns: 1fr;
        gap: 2.4rem;
        padding: 2.8rem 0 3.8rem;
    }

    .portrait-wrap {
        width: min(62vw, 220px);
    }

    .hero h1 {
        font-size: clamp(2.35rem, 10vw, 2.8rem);
    }

    .page-intro {
        padding: 3.2rem 0 2.2rem;
    }

    .editorial-section {
        grid-template-columns: 1fr;
        gap: 1.7rem;
        padding: 3.5rem 0;
    }

    .profile-details {
        grid-template-columns: 1fr;
    }

    .section-label::before {
        margin-bottom: 0.75rem;
    }

    .admissions {
        margin-bottom: 4rem;
        padding: 2rem 1.4rem;
    }

    .project-card {
        grid-template-columns: 1fr;
    }

    .project-media {
        min-height: 245px;
        aspect-ratio: 16 / 10;
    }

    .project-content {
        padding: 1.5rem;
    }

    .publication-year {
        grid-template-columns: 1fr;
        gap: 1.3rem;
    }

    .publication-year h2 {
        font-size: 1.65rem;
    }

    .footer-shell {
        min-height: 180px;
        flex-direction: column;
        align-items: flex-start;
        justify-content: center;
        gap: 1rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}