/* ==========================================================================
   Mingxuan Liu — Academic Homepage
   Skin: "OpenReview" — faithfully mimics openreview.net's visual system,
   verified from their live CSS bundles (2026-07):
     brand crimson #8c1b13 (navbar, h4 headings, stat numbers)
     teal links #3e6775 → hover #3f6978
     slate text #2c3a4a, gray #616161, cream ground #fffdfa,
     panel #f7f6f4, borders #ddd/#eee, Noto Sans @ 14px,
     buttons: 2px teal border, zero radius, h1 text-shadow 0 1px 0 #fff.
   Same DOM contract as the Anthropic skin — scripts.js untouched.
   ========================================================================== */

/* ---------- Tokens ---------- */
:root {
    --or-red: #8c1b13;
    --or-red-dark: #7d1803;
    --or-teal: #3e6775;
    --or-teal-dark: #3f6978;
    --or-slate: #2c3a4a;
    --or-gray: #616161;
    --or-gray-2: #757575;
    --or-ground: #fffdfa;
    --or-panel: #f7f6f4;
    --or-line: #ddd;
    --or-line-lt: #eee;

    --font-sans: "Noto Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
    --font-mono: "Courier New", Courier, monospace;

    --wrap: 1010px;
    --scroll-h: 560px;
}

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

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    background: var(--or-ground);
    color: #333;
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.42857143;
    -webkit-font-smoothing: antialiased;
}

/* Links: OpenReview teal, underline on hover only (bootstrap behavior) */
a {
    color: var(--or-teal);
    text-decoration: none;
}

a:visited {
    color: var(--or-teal);
}

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

.wrap {
    max-width: var(--wrap);
    margin: 0 auto;
    padding: 0 24px;
}

kbd {
    font-family: inherit;
    font-size: 0.85em;
    font-weight: 400;
    padding: 0 3px;
    border: 1px solid rgba(255, 255, 255, 0.5);
    background: none;
    color: inherit;
    border-radius: 2px;
}

/* Chrome not used by this skin */
.ambient,
.status-dot,
.portrait-glow,
.brand-mark,
.nameplate-rule,
.frontrail,
.kicker-idx,
.tweaks {
    display: none !important;
}

/* ---------- Top bar: the OpenReview crimson navbar ---------- */
.topbar {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--or-red);
    border-bottom: none;
}

.topbar-inner {
    max-width: var(--wrap);
    margin: 0 auto;
    padding: 0 24px;
    min-height: 50px;
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.brand {
    font-family: var(--font-sans);
    font-weight: 700;
    text-decoration: none;
}

.brand-name {
    font-size: 18px;
    color: #fff;
}

.brand-name a,
.brand a {
    color: #fff;
    text-decoration: none;
}

.brand:hover .brand-name {
    color: #fff;
}

.topnav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 2px;
    margin-left: auto;
}

.topnav-link {
    font-size: 14px;
    font-weight: 400;
    color: #fff;
    text-decoration: none;
    padding: 6px 10px;
}

.topnav-link:hover {
    color: #fff;
    text-decoration: none;
    background: rgba(0, 0, 0, 0.15);
}

.topnav-link.active {
    color: #fff;
    font-weight: 700;
    background: rgba(0, 0, 0, 0.2);
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* CV button removed from the navbar (lives in hero links) */
.btn-cv {
    display: none;
}

.icon-btn {
    display: none;
}

/* ---------- Header / profile intro ---------- */
.hero {
    padding: 26px 0 10px;
}

.hero-title {
    margin: 0.5rem 0 0.25rem;
    font-family: var(--font-sans);
    font-weight: 700;
    line-height: 1.1;
    /* OpenReview h1: bold + subtle white emboss */
    text-shadow: 0 1px 0 #fff;
}

.hero-title-en {
    font-size: 2.25rem;
    color: var(--or-slate);
}

.hero-title-zh {
    font-size: 1.15rem;
    font-weight: 400;
    color: var(--or-gray);
    margin-left: 8px;
    text-shadow: none;
}

/* eyebrow ≈ the profile-title line under a name (plain gray, not uppercase) */
.hero-eyebrow {
    display: block;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 400;
    letter-spacing: 0;
    text-transform: none;
    color: var(--or-gray);
    margin-bottom: 16px;
}

.front-grid {
    display: block;
}

.front-side {
    display: block;
}

/* Portrait: plain bordered photo, floated right */
.portrait {
    float: right;
    width: 150px;
    margin: 4px 0 12px 2em;
}

.portrait img {
    width: 100%;
    height: auto;
    border: 1px solid var(--or-line);
    display: block;
}

.portrait-cap {
    font-size: 0.75rem;
    color: var(--or-gray);
    margin-top: 3px;
    line-height: 1.35;
}

.lead .hero-lede {
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    line-height: 1.6;
    color: #333;
    text-align: justify;
    hyphens: auto;
}

.lead .hero-lede p {
    margin: 0 0 10px;
}

.lead .hero-lede strong {
    color: var(--or-slate);
}

/* Hero links ≈ profile "Personal Links": plain teal links in a row */
.hero-links {
    clear: none;
    margin: 12px 0 0;
    padding: 8px 0;
    border-top: 1px solid var(--or-line-lt);
    border-bottom: 1px solid var(--or-line-lt);
    font-size: 0.875rem;
}

.hero-links a {
    color: var(--or-teal);
    margin-right: 4px;
}

.hero-links a .ico {
    display: none;
}

.hero-links a::after {
    content: " ·";
    color: #ccc;
    text-decoration: none;
}

.hero-links a:last-child::after {
    content: "";
}

/* ---------- Metrics: OpenReview stats page (big crimson numbers) ---------- */
.metrics {
    margin: 14px 0 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0 32px;
}

.metric {
    padding: 0;
}

.metric-num {
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: 1.75rem;
    color: var(--or-red);
}

.metric-num .plus {
    color: var(--or-red);
}

.metric-cap {
    display: inline;
    margin-left: 6px;
    font-size: 0.75rem;
    color: var(--or-gray);
}

/* ---------- Sections ---------- */
.section {
    padding: 26px 0;
    border-top: 1px solid var(--or-line-lt);
    scroll-margin-top: 58px;
}

.section-head {
    margin-bottom: 12px;
}

.section-kicker {
    display: flex;
    align-items: baseline;
    gap: 10px;
}

/* Section heading = OpenReview's signature small bold crimson h4 */
.section-h {
    margin: 0;
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: 1.125rem;
    letter-spacing: 0;
    color: var(--or-red);
}

.section-sub {
    font-family: var(--font-sans);
    margin: 4px 0 0;
    color: var(--or-gray);
    font-size: 0.875rem;
    font-style: normal;
    max-width: 80ch;
}

/* ---------- Internal-scroll panel ---------- */
.scrollbox {
    max-height: var(--scroll-h);
    overflow-y: auto;
    border: 1px solid var(--or-line);
    background: var(--or-ground);
    padding: 4px 16px;
    scrollbar-width: thin;
    scrollbar-color: #ccc var(--or-panel);
}

.scrollbox::-webkit-scrollbar {
    width: 10px;
}

.scrollbox::-webkit-scrollbar-track {
    background: var(--or-panel);
}

.scrollbox::-webkit-scrollbar-thumb {
    background: #ccc;
    border: 2px solid var(--or-panel);
}

.scrollbox-note {
    font-size: 0.75rem;
    color: var(--or-gray-2);
    margin: 6px 0 0;
    text-align: right;
}

/* ---------- Filters: bootstrap-tab-flavored chips ---------- */
.filters {
    display: flex;
    flex-wrap: wrap;
    gap: 4px 6px;
    margin-bottom: 12px;
}

.filter-chip {
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    padding: 3px 12px;
    color: var(--or-teal);
    background: var(--or-ground);
    border: 1px solid var(--or-line);
    border-radius: 0;
    cursor: pointer;
}

.filter-chip:hover {
    background: var(--or-panel);
}

.filter-chip.active {
    color: #fff;
    background: var(--or-teal);
    border-color: var(--or-teal-dark);
    font-weight: 700;
}

.filter-chip .cnt {
    font-size: 0.75rem;
    color: inherit;
    opacity: 0.75;
    margin-left: 4px;
}

/* ---------- Publications: OpenReview note cards ---------- */
.pubs {
    display: block;
}

.pub-group-title {
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--or-slate);
    margin: 16px 0 4px;
    padding-bottom: 4px;
    border-bottom: 2px solid var(--or-line);
    position: sticky;
    top: 0;
    background: var(--or-ground);
    z-index: 2;
}

.pub-group-title:first-child,
.pub-group-title.pub-group-first {
    margin-top: 4px;
}

.pub-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    padding: 8px 0;
    border-bottom: 1px solid var(--or-line-lt);
}

.pub-row.hidden {
    display: none;
}

/* year column folded into the meta line, OpenReview-style */
.pub-meta {
    display: none;
}

.pub-body {
    min-width: 0;
    max-width: none;
}

/* line 1 — title: teal, bold, link-like (OpenReview note h4) */
.pub-title-line {
    font-family: var(--font-sans);
    color: var(--or-teal);
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.25rem;
    text-align: left;
    hyphens: none;
}

/* line 2 — authors: italic slate */
.pub-authors {
    font-family: var(--font-sans);
    font-style: italic;
    color: var(--or-slate);
    font-size: 0.875rem;
    line-height: 1.3;
    margin-top: 2px;
    text-align: left;
    hyphens: none;
}

.pub-authors strong {
    font-weight: 700;
}

.author-me {
    color: var(--or-slate);
    font-weight: 700;
    text-decoration: none;
}

/* line 3 — meta: small gray (venue, year, honors, links) */
.pub-venue-line {
    font-family: var(--font-sans);
    margin-top: 2px;
    font-size: 0.75rem;
    line-height: 1.25rem;
    color: var(--or-gray);
}

.pub-venue {
    font-style: normal;
    color: var(--or-gray);
}

.pub-vyear {
    color: var(--or-gray);
}

/* line 4 — honors + links row (quiet, like OpenReview's note meta) */
.pub-extra {
    font-family: var(--font-sans);
    margin-top: 2px;
    font-size: 0.75rem;
    line-height: 1.25rem;
    color: var(--or-gray);
}

/* honors: quiet crimson text, no box */
.pill-honor {
    background: none;
    color: var(--or-red);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: none;
    padding: 0;
    margin-right: 10px;
    white-space: normal;
}

.pill-honor::before {
    content: "";
}

.pub-links {
    display: inline;
    margin-left: 0;
}

.lnk {
    display: inline;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    color: var(--or-teal);
    background: none;
    border: none;
    padding: 0;
    margin-right: 8px;
    cursor: pointer;
    text-decoration: none;
}

.lnk::before {
    content: "";
}

.lnk::after {
    content: "";
}

.lnk:hover {
    color: var(--or-teal-dark);
    text-decoration: underline;
}

.lnk.is-open {
    font-weight: 700;
}

/* BibTeX box: code panel */
.bib-box {
    margin-top: 6px;
    padding: 10px 12px;
    background: var(--or-panel);
    border: 1px solid var(--or-line-lt);
    border-radius: 0;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    line-height: 1.5;
    color: #333;
    white-space: pre-wrap;
    overflow-x: auto;
}

.pub-expand {
    display: none;
}

/* ---------- Feed (news / activities) ---------- */
.feed {
    display: block;
}

.feed-item {
    display: grid;
    grid-template-columns: 88px 1fr;
    gap: 12px;
    padding: 7px 0;
    border-bottom: 1px solid var(--or-line-lt);
}

.feed-date {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    color: var(--or-gray);
    white-space: nowrap;
    padding-top: 2px;
}

.feed-body {
    font-family: var(--font-sans);
    color: #333;
    font-size: 0.875rem;
    line-height: 1.5;
    max-width: none;
    text-align: left;
    hyphens: none;
}

.feed-body a {
    color: var(--or-teal);
}

.feed-body strong {
    color: var(--or-slate);
}

.feed-item.starred .feed-date::before {
    content: "";
}

.feed-item.starred .feed-date {
    color: var(--or-red);
    font-weight: 700;
}

.feed-more {
    display: none;
}

/* ---------- Awards ---------- */
.award-list ul,
.talk-list ul,
.plain-list ul,
.book-list ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.award-row {
    display: grid;
    grid-template-columns: 48px 1fr auto;
    gap: 14px;
    align-items: baseline;
    padding: 5px 8px;
}

/* zebra: OpenReview forum's alternating note grounds */
.award-row:nth-child(odd),
.talk-row:nth-child(odd),
.plain-row:nth-child(odd) {
    background: var(--or-panel);
}

.award-year {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    color: var(--or-gray);
}

.award-title {
    font-family: var(--font-sans);
    color: #333;
    font-size: 0.875rem;
    line-height: 1.45;
    text-align: left;
    hyphens: none;
}

.award-title strong {
    color: var(--or-slate);
    font-weight: 700;
}

.award-sub {
    display: block;
    color: var(--or-gray);
    font-size: 0.75rem;
    font-style: italic;
    margin-top: 1px;
}

.award-cert {
    font-size: 0.75rem;
    color: var(--or-teal);
    white-space: nowrap;
    text-decoration: none;
}

.award-cert:hover {
    text-decoration: underline;
}

.award-cert::before {
    content: "";
}

.award-cert::after {
    content: "";
}

/* ---------- Talks / funding ---------- */
.talk-row,
.plain-row {
    display: grid;
    grid-template-columns: 48px 1fr auto;
    gap: 14px;
    align-items: baseline;
    padding: 5px 8px;
}

.talk-row .yr,
.plain-row .yr {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    color: var(--or-gray);
}

.talk-row .ttl,
.plain-row .ttl {
    font-family: var(--font-sans);
    color: #333;
    font-size: 0.875rem;
    line-height: 1.45;
    text-align: left;
    hyphens: none;
}

.talk-row .ttl strong,
.plain-row .ttl strong {
    font-weight: 700;
    color: var(--or-slate);
}

.talk-row a.slides {
    font-size: 0.75rem;
    color: var(--or-teal);
    text-decoration: none;
    white-space: nowrap;
}

.talk-row a.slides:hover {
    text-decoration: underline;
}

.talk-row a.slides::before {
    content: "";
}

.talk-row a.slides::after {
    content: "";
}

/* ---------- Service ---------- */
.service-body {
    display: block;
}

.svc-card {
    background: none;
    border: none;
    border-top: 1px solid var(--or-line-lt);
    border-radius: 0;
    padding: 10px 0;
}

.svc-card:first-child {
    border-top: none;
}

.svc-card h5 {
    margin: 0 0 6px;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0;
    text-transform: none;
    color: var(--or-red);
}

.svc-card ul {
    list-style: disc;
    margin: 0;
    padding-left: 20px;
}

.svc-card li {
    font-family: var(--font-sans);
    color: #333;
    font-size: 0.875rem;
    padding: 2px 0;
    text-align: left;
    hyphens: none;
}

.svc-card li strong {
    color: var(--or-slate);
    font-weight: 700;
}

/* ---------- Books: same row recipe as Talks/Funding (zebra, same sizes) ---------- */
.book-row {
    display: grid;
    grid-template-columns: 170px 1fr auto;
    gap: 14px;
    align-items: baseline;
    padding: 5px 8px;
    border-bottom: none;
}

.book-row:nth-child(odd) {
    background: var(--or-panel);
}

.book-row .span {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    color: var(--or-gray);
}

.book-row .bk {
    font-family: var(--font-sans);
    color: #333;
    font-size: 0.875rem;
    line-height: 1.45;
}

.book-row .bk em {
    font-style: italic;
}

.book-row .bk strong {
    font-weight: 700;
    color: var(--or-slate);
}

.book-row a {
    color: var(--or-teal);
    font-size: 0.75rem;
}

/* ---------- People grid ---------- */
.people-grid ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.people-grid li {
    background: var(--or-ground);
    border: 1px solid var(--or-line);
    border-radius: 0;
    padding: 10px 12px;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    line-height: 1.45;
    color: var(--or-gray);
}

.people-grid li:hover {
    background: var(--or-panel);
    border-color: #ccc;
}

.people-grid li a {
    color: var(--or-teal);
    font-size: 0.875rem;
    font-weight: 700;
    text-decoration: none;
    display: block;
    margin-bottom: 2px;
}

.people-grid li a:hover {
    color: var(--or-teal-dark);
    text-decoration: underline;
}

.people-grid li strong {
    font-weight: 700;
}

/* ---------- Visitor ---------- */
.visitor-wrap {
    display: flex;
    justify-content: center;
    padding: 8px 0;
}

/* ---------- Footer: OpenReview's quiet centered footer ---------- */
.footer {
    border-top: 1px solid var(--or-line);
    background: var(--or-ground);
    padding: 18px 0 40px;
    margin-top: 16px;
}

.footer-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: center;
    gap: 10px;
    font-size: 0.8125rem;
    color: var(--or-gray-2);
}

.footer-copy {
    color: var(--or-gray-2);
    font-size: 0.8125rem;
}

.footer-right {
    display: flex;
    gap: 12px;
}

.footer-right a {
    color: var(--or-teal);
    font-size: 0.8125rem;
}

/* ---------- Back to top ---------- */
.fab {
    position: fixed;
    right: 16px;
    bottom: 16px;
    width: auto;
    height: auto;
    border-radius: 0;
    border: 2px solid var(--or-teal-dark);
    background: var(--or-ground);
    color: var(--or-teal);
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-weight: 700;
    padding: 4px 10px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    z-index: 90;
}

.fab:hover {
    background: var(--or-panel);
}

.fab.show {
    opacity: 1;
    visibility: visible;
}

/* ---------- Reveal disabled ---------- */
.reveal {
    opacity: 1 !important;
    transform: none !important;
}

/* ---------- Responsive ---------- */
@media (max-width: 700px) {
    .wrap {
        padding: 0 16px;
    }

    .topbar-inner {
        padding: 8px 16px;
    }

    .topnav {
        margin-left: 0;
        width: 100%;
        padding-bottom: 6px;
    }

    .portrait {
        width: 110px;
        margin-left: 14px;
    }

    .feed-item {
        grid-template-columns: 1fr;
        gap: 2px;
    }

    .award-row,
    .talk-row,
    .plain-row {
        grid-template-columns: 42px 1fr;
    }

    .award-cert,
    .talk-row a.slides {
        grid-column: 2;
        justify-self: start;
        margin-top: 2px;
    }

    .book-row {
        grid-template-columns: 1fr;
        gap: 1px;
    }

    .people-grid ul {
        grid-template-columns: 1fr;
    }

    .footer-inner {
        flex-direction: column;
        align-items: center;
    }
}