:root {
    --bg: #f7f7f8;
    --surface: rgba(255, 255, 255, 0.9);
    --surface-strong: rgba(255, 255, 255, 0.96);
    --surface-soft: rgba(255, 255, 255, 0.72);
    --text: #474d57;
    --text-strong: #2f3640;
    --muted: #6b7280;
    --accent: #2c5aa0;
    --accent-soft: rgba(44, 90, 160, 0.08);
    --border: #e5e7eb;
    --border-strong: rgba(183, 193, 208, 0.45);
    --shadow: 0 14px 34px rgba(27, 39, 58, 0.08);
    --shadow-soft: 0 20px 50px rgba(31, 45, 68, 0.08);
    --shadow-card: 0 24px 64px rgba(25, 39, 62, 0.08);
    --sidebar-width: 260px;
}

@font-face {
    font-family: "MaoTi";
    src: url("../assets/MaoZeDongShuFaZiTi/maozedong-1.ttf") format("truetype");
    font-display: swap;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 6rem;
}

body {
    margin: 0;
    min-height: 100vh;
    color: var(--text);
    font-family: "IBM Plex Sans", sans-serif;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background:
        radial-gradient(circle at 85% 18%, rgba(44, 90, 160, 0.07), transparent 20%),
        radial-gradient(circle at top left, rgba(44, 90, 160, 0.06), transparent 22%),
        linear-gradient(180deg, #fbfbfc 0%, var(--bg) 100%);
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    opacity: 0.35;
    background-image:
        linear-gradient(rgba(31, 41, 55, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(31, 41, 55, 0.03) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.85) 25%, rgba(0, 0, 0, 0.85) 75%, rgba(0, 0, 0, 0.2));
    pointer-events: none;
}

a {
    color: inherit;
}

img {
    display: block;
    max-width: 100%;
}

.hidden {
    display: none !important;
}

.site-nav {
    position: sticky;
    top: 0;
    z-index: 40;
    border-bottom: 1px solid rgba(214, 220, 229, 0.78);
    background: rgba(251, 251, 252, 0.84);
    backdrop-filter: blur(14px);
    box-shadow: 0 10px 30px rgba(26, 39, 58, 0.04);
}

.nav-inner {
    max-width: 1380px;
    margin: 0 auto;
    padding: 0.95rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.nav-brand {
    font-family: "Source Serif 4", "Noto Serif SC", serif;
    font-size: 1.55rem;
    font-weight: 700;
    color: var(--text-strong);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.4rem;
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.nav-links a {
    position: relative;
    color: var(--muted);
    text-decoration: none;
    transition: color 160ms ease;
}

.nav-links a::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -0.3rem;
    height: 1px;
    transform: scaleX(0);
    transform-origin: center;
    background: rgba(44, 90, 160, 0.5);
    transition: transform 180ms ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
    color: var(--accent);
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after {
    transform: scaleX(1);
}

.page-shell {
    max-width: 1380px;
    margin: 0 auto;
    padding: 2.5rem 2rem 4rem;
    display: grid;
    grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
    gap: 4rem;
    align-items: start;
}

.profile-sidebar {
    align-self: start;
}

.profile-sidebar-inner {
    position: sticky;
    top: 6rem;
    display: flex;
    flex-direction: column;
    gap: 1.3rem;
    padding: 1.5rem;
    border: 1px solid var(--border-strong);
    border-radius: 30px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.82) 100%);
    box-shadow: var(--shadow-card);
    backdrop-filter: blur(12px);
}

.avatar-frame {
    width: 176px;
    aspect-ratio: 1;
    overflow: hidden;
    border-radius: 999px;
    border: 5px solid rgba(255, 255, 255, 0.96);
    box-shadow:
        0 18px 40px rgba(28, 42, 65, 0.12),
        0 0 0 1px rgba(44, 90, 160, 0.1);
    background: #fff;
}

.avatar-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.profile-block {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}

.profile-name {
    margin: 0;
    color: var(--text-strong);
    font-family: "Source Serif 4", "Noto Serif SC", serif;
    font-size: 2.3rem;
    line-height: 1;
    letter-spacing: -0.03em;
}

.profile-role,
.profile-affiliation,
.profile-focus,
.profile-motto,
.avatar-caption {
    margin: 0;
    line-height: 1.65;
}

.profile-role {
    color: var(--accent);
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.76rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    line-height: 1.5;
}

.profile-affiliation {
    color: var(--text);
    font-family: "Source Serif 4", "Noto Serif SC", serif;
    font-size: 1.06rem;
    letter-spacing: -0.01em;
}

.profile-focus {
    color: var(--muted);
    font-size: 0.98rem;
}

.profile-motto {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.3rem;
    padding: 1.12rem 1.15rem 1.18rem 1.25rem;
    border: 1px solid rgba(44, 90, 160, 0.12);
    border-left: 4px solid rgba(44, 90, 160, 0.26);
    border-radius: 0 18px 18px 0;
    background: linear-gradient(180deg, rgba(44, 90, 160, 0.06), rgba(44, 90, 160, 0.03));
    color: #2f3640;
    font-family: "MaoTi", "STKaiti", "Kaiti SC", "Noto Serif SC", serif;
    font-size: clamp(1.72rem, 1.3rem + 0.95vw, 2.02rem);
    font-style: normal;
    font-weight: 400;
    line-height: 1.08;
    letter-spacing: 0.02em;
    text-wrap: balance;
    text-align: left;
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.5),
        0 10px 24px rgba(44, 90, 160, 0.05);
}

.motto-line {
    display: block;
    max-width: 100%;
    text-indent: 0;
}

.avatar-caption {
    color: var(--muted);
    font-size: 0.8rem;
}

.profile-meta {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.profile-meta-row {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.72rem 0.85rem;
    border: 1px solid rgba(218, 224, 232, 0.8);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.62);
    color: var(--text);
    text-decoration: none;
    transition:
        border-color 160ms ease,
        color 160ms ease,
        background-color 160ms ease,
        transform 160ms ease;
}

.profile-meta-row i {
    width: 1rem;
    color: var(--text-strong);
    text-align: center;
}

.profile-meta-row span {
    font-size: 0.95rem;
    letter-spacing: 0.01em;
}

.profile-meta-row:hover,
.profile-meta-row:focus-visible {
    color: var(--accent);
    border-color: rgba(44, 90, 160, 0.22);
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-1px);
}

.focus-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
}

.focus-tag {
    display: inline-flex;
    align-items: center;
    padding: 0.48rem 0.82rem;
    border-radius: 999px;
    border: 1px solid rgba(44, 90, 160, 0.12);
    background: rgba(44, 90, 160, 0.07);
    color: var(--accent);
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.76rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

.profile-sidebar-sections {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.sidebar-section {
    padding-top: 1.2rem;
    border-top: 1px solid var(--border);
}

.sidebar-section-last {
    padding-bottom: 0;
}

.sidebar-section-header {
    margin-bottom: 1rem;
}

.sidebar-section-title {
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.55rem;
    color: var(--text-strong);
    font-family: "Source Serif 4", "Noto Serif SC", serif;
    font-size: 1.15rem;
    line-height: 1.25;
    letter-spacing: -0.02em;
}

.profile-sidebar-sections .list-row {
    grid-template-columns: 1fr;
    gap: 0.35rem;
    padding: 0.8rem 0;
}

.profile-sidebar-sections .list-title {
    font-size: 0.98rem;
    line-height: 1.5;
}

.profile-sidebar-sections .list-subtitle,
.profile-sidebar-sections .list-description {
    font-size: 0.92rem;
    line-height: 1.65;
}

.profile-sidebar-sections .list-year {
    color: var(--muted);
    font-size: 0.74rem;
}

.profile-sidebar-sections .interest-grid {
    display: grid;
    gap: 0.65rem;
}

.profile-sidebar-sections .interest-item {
    width: 100%;
    justify-content: flex-start;
    border-radius: 14px;
}

.content-column {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 1.6rem;
}

.content-section {
    position: relative;
    padding: 2rem 2.2rem 2.15rem;
    margin-bottom: 0;
    border: 1px solid var(--border-strong);
    border-radius: 30px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.92) 0%, rgba(255, 255, 255, 0.78) 100%);
    box-shadow: var(--shadow-soft);
    overflow: hidden;
}

.content-section-last {
    margin-bottom: 0;
}

.content-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 2.2rem;
    width: 72px;
    height: 1px;
    background: linear-gradient(90deg, rgba(44, 90, 160, 0.38), rgba(44, 90, 160, 0));
}

.content-section::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(circle at top right, rgba(44, 90, 160, 0.05), transparent 26%);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.45rem;
}

.section-title {
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.65rem;
    color: var(--text-strong);
    font-family: "Source Serif 4", "Noto Serif SC", serif;
    font-size: 2.05rem;
    line-height: 1.15;
    letter-spacing: -0.03em;
}

.section-emoji {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border: 1px solid rgba(44, 90, 160, 0.12);
    border-radius: 999px;
    background: rgba(44, 90, 160, 0.06);
    font-size: 1.2rem;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.section-action {
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface-strong);
    color: var(--text);
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0.65rem 0.95rem;
    cursor: pointer;
    transition: border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.section-action:hover,
.section-action:focus-visible {
    border-color: rgba(44, 90, 160, 0.35);
    color: var(--accent);
    background: #fff;
    transform: translateY(-1px);
}

.about-copy {
    max-width: 900px;
}

.lead-paragraph,
.body-paragraph {
    margin: 0;
    font-family: "Source Serif 4", "Noto Serif SC", serif;
    line-height: 1.9;
    letter-spacing: -0.01em;
    text-wrap: pretty;
}

.lead-paragraph {
    font-size: 1.16rem;
}

.body-paragraph {
    margin-top: 1rem;
    color: var(--muted);
    font-size: 1.04rem;
}

.lead-paragraph strong,
.body-paragraph strong,
.publication-authors strong {
    color: var(--text-strong);
}

.note-list,
.news-list,
.publication-points {
    margin: 1.15rem 0 0;
}

.note-list {
    padding: 0;
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.note-list li {
    display: flex;
    gap: 0.75rem;
    font-family: "Source Serif 4", "Noto Serif SC", serif;
    font-size: 1.03rem;
    line-height: 1.8;
    letter-spacing: -0.01em;
    text-wrap: pretty;
}

.note-list li::before {
    content: "✦";
    color: var(--accent);
    flex-shrink: 0;
}

.news-list {
    padding: 0;
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.news-list li {
    position: relative;
    padding: 0.9rem 1rem 0.9rem 1.35rem;
    border: 1px solid rgba(220, 225, 234, 0.82);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.66);
    font-family: "Source Serif 4", "Noto Serif SC", serif;
    font-size: 1.02rem;
    line-height: 1.8;
    letter-spacing: -0.01em;
    text-wrap: pretty;
    box-shadow: 0 10px 24px rgba(34, 47, 68, 0.04);
}

.news-list .news-item {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: start;
    gap: 0.72rem;
    padding: 0.95rem 1rem;
}

.news-list li.news-item::before {
    content: none;
}

.news-marker {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.55rem;
    min-width: 1.55rem;
    padding-top: 0.08rem;
    font-size: 1rem;
    line-height: 1;
    filter: saturate(1.05);
}

.news-copy {
    min-width: 0;
}

.news-copy em {
    font-style: normal;
    color: var(--accent);
}

.news-accent {
    align-self: end;
    justify-self: end;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.4rem;
    font-size: 1rem;
    line-height: 1;
    opacity: 0.95;
}

.news-item-publication .news-marker,
.news-item-publication .news-accent {
    filter: drop-shadow(0 1px 6px rgba(44, 90, 160, 0.12));
}

.news-item-honor .news-marker,
.news-item-honor .news-accent {
    filter: drop-shadow(0 1px 6px rgba(218, 162, 53, 0.16));
}

.news-item-education .news-marker,
.news-item-education .news-accent {
    filter: drop-shadow(0 1px 6px rgba(72, 146, 108, 0.14));
}

.news-list strong {
    color: var(--text-strong);
}

.empty-copy {
    color: var(--muted);
    line-height: 1.7;
}

.publication-list {
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

.publication-item {
    display: grid;
    grid-template-columns: minmax(240px, 320px) minmax(0, 1fr);
    align-items: start;
    gap: 1.8rem;
    padding: 1.4rem;
    border: 1px solid rgba(217, 223, 232, 0.82);
    border-radius: 24px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.88) 0%, rgba(249, 251, 255, 0.74) 100%);
    box-shadow: 0 16px 34px rgba(27, 39, 58, 0.06);
}

.publication-image {
    align-self: start;
}

.publication-image img {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 16px 32px rgba(33, 47, 70, 0.09);
}

.publication-content {
    min-width: 0;
    align-self: start;
    padding-top: 0.15rem;
}

.publication-title {
    margin: 0;
    color: var(--accent);
    font-size: 1.48rem;
    line-height: 1.3;
    font-family: "Source Serif 4", "Noto Serif SC", serif;
    letter-spacing: -0.02em;
}

.publication-authors,
.publication-meta {
    margin: 0.55rem 0 0;
    line-height: 1.8;
}

.publication-meta {
    color: var(--muted);
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.publication-links {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-top: 0.85rem;
}

.publication-links a,
.publication-links span {
    font-size: 0.98rem;
}

.publication-links a {
    color: var(--accent);
    text-decoration: none;
}

.publication-links span {
    color: var(--muted);
    text-decoration: none;
    padding: 0.3rem 0.55rem;
    border-radius: 999px;
    background: rgba(44, 90, 160, 0.05);
}

.publication-repo-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border: 1px solid rgba(44, 90, 160, 0.18);
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent);
    transition: transform 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.publication-repo-link:hover,
.publication-repo-link:focus-visible {
    transform: translateY(-1px);
    border-color: rgba(44, 90, 160, 0.35);
    background: rgba(44, 90, 160, 0.14);
}

.publication-repo-link i {
    font-size: 1rem;
    line-height: 1;
}

.publication-status {
    display: inline-flex;
    align-items: center;
    margin-top: 0.95rem;
    padding: 0.3rem 0.7rem;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.publication-points {
    padding-left: 1.2rem;
    color: var(--text);
    line-height: 1.75;
}

.simple-list {
    display: flex;
    flex-direction: column;
}

.list-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 1rem;
    padding: 1rem 0;
    border-top: 1px solid var(--border);
}

.content-column .list-row {
    padding: 1rem 1.1rem;
    border-top: none;
    border: 1px solid rgba(220, 225, 234, 0.82);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.68);
    box-shadow: 0 10px 24px rgba(34, 47, 68, 0.04);
    transition:
        border-color 160ms ease,
        transform 160ms ease,
        box-shadow 160ms ease;
}

.content-column .list-row:hover,
.content-column .list-row:focus-within {
    transform: translateY(-1px);
    border-color: rgba(44, 90, 160, 0.18);
    box-shadow: 0 16px 30px rgba(34, 47, 68, 0.06);
}

.content-column .simple-list {
    gap: 0.8rem;
}

.list-main {
    min-width: 0;
}

.list-title {
    margin: 0;
    color: var(--text-strong);
    font-family: "Source Serif 4", "Noto Serif SC", serif;
    font-size: 1.1rem;
    font-weight: 600;
    line-height: 1.45;
    letter-spacing: -0.01em;
}

.list-subtitle,
.list-description {
    margin: 0.2rem 0 0;
    color: var(--muted);
    font-family: "Source Serif 4", "Noto Serif SC", serif;
    font-size: 1rem;
    line-height: 1.75;
    letter-spacing: -0.01em;
    text-wrap: pretty;
}

.list-year {
    align-self: start;
    color: var(--text-strong);
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.8rem;
    letter-spacing: 0.06em;
    white-space: nowrap;
}

.interest-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.interest-item {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.65rem 0.9rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(248, 249, 252, 0.82));
    color: var(--text);
    text-decoration: none;
    box-shadow: 0 10px 20px rgba(31, 45, 68, 0.05);
    transition: border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.interest-item:hover,
.interest-item:focus-visible {
    border-color: rgba(44, 90, 160, 0.3);
    color: var(--accent);
    transform: translateY(-1px);
}

.interest-item.is-static {
    cursor: default;
}

.interest-item.is-static:hover,
.interest-item.is-static:focus-visible {
    color: var(--text);
    border-color: var(--border);
    transform: none;
}

.site-footer {
    padding: 1rem 2rem 3rem;
    color: var(--muted);
    text-align: center;
}

.site-footer p {
    margin: 0;
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.76rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

@media (max-width: 1023px) {
    .page-shell {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .profile-sidebar-inner {
        position: static;
    }

    .profile-sidebar {
        max-width: 640px;
    }

    .profile-sidebar-inner {
        padding: 1.35rem;
    }

    .content-section {
        padding: 1.7rem;
    }

    .content-section::before {
        left: 1.7rem;
    }
}

@media (max-width: 767px) {
    .nav-inner,
    .page-shell,
    .site-footer {
        padding-left: 1.15rem;
        padding-right: 1.15rem;
    }

    .nav-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .nav-links {
        width: 100%;
        overflow-x: auto;
        padding-bottom: 0.15rem;
        gap: 1rem;
        font-size: 0.74rem;
        white-space: nowrap;
    }

    .section-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .publication-item,
    .list-row {
        grid-template-columns: 1fr;
    }

    .avatar-frame {
        width: 156px;
    }

    .profile-sidebar-inner {
        border-radius: 24px;
    }

    .profile-motto {
        gap: 0.24rem;
        padding: 0.98rem 1rem 1.02rem 1.05rem;
        font-size: clamp(1.42rem, 1.16rem + 1.05vw, 1.7rem);
        line-height: 1.12;
    }

    .content-column {
        gap: 1.15rem;
    }

    .content-section {
        padding: 1.4rem 1.2rem 1.5rem;
        border-radius: 24px;
    }

    .content-section::before {
        left: 1.2rem;
        width: 56px;
    }

    .publication-item {
        padding: 1rem;
        border-radius: 20px;
    }

    .news-list li,
    .content-column .list-row {
        padding: 0.9rem;
    }

    .news-list .news-item {
        gap: 0.62rem;
        padding: 0.9rem;
    }

    .news-marker,
    .news-accent {
        font-size: 0.96rem;
    }
}

@media (max-height: 900px) {
    .profile-sidebar-inner {
        position: static;
    }
}