:root {
  --portfolio-bg: #f5f7fb;
  --portfolio-surface: #ffffff;
  --portfolio-surface-soft: #edf1f7;
  --portfolio-ink: #111827;
  --portfolio-muted: #5f6877;
  --portfolio-border: rgba(25, 34, 49, 0.12);
  --portfolio-accent: #3567f0;
  --portfolio-accent-soft: #dce6ff;
  --portfolio-cyan: #46d8ef;
  --portfolio-shadow: 0 24px 70px rgba(31, 47, 77, 0.11);
  --portfolio-nav-height: 66px;
}

html[data-theme="dark"] {
  --portfolio-bg: #090d14;
  --portfolio-surface: #101722;
  --portfolio-surface-soft: #141d2a;
  --portfolio-ink: #edf4ff;
  --portfolio-muted: #a0acbd;
  --portfolio-border: rgba(207, 222, 244, 0.13);
  --portfolio-accent: #7ca4ff;
  --portfolio-accent-soft: #1a315f;
  --portfolio-shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 76px;
}

body {
  background: var(--portfolio-bg);
}

.masthead {
  background: color-mix(in srgb, var(--portfolio-bg) 88%, transparent);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.masthead::after {
  background: var(--portfolio-border);
}

.masthead__inner-wrap {
  max-width: 1776px !important;
  padding: 0.65rem 3rem;
}

.greedy-nav,
.greedy-nav .visible-links {
  background: transparent;
}

.masthead__menu-item,
.masthead__menu-item a {
  background: transparent;
}

.masthead__menu-item:not(.masthead__menu-item--lg) a {
  color: var(--portfolio-muted);
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.masthead__menu-item--lg a {
  color: var(--portfolio-ink);
  font-size: 1.08rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.portfolio {
  color: var(--portfolio-ink);
  background: var(--portfolio-bg);
  overflow: hidden;
}

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

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

.portfolio-shell {
  width: min(1680px, calc(100% - 96px));
  margin-inline: auto;
}

.portfolio-kicker,
.portfolio-section-index {
  margin: 0;
  color: var(--portfolio-accent);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  line-height: 1.4;
  text-transform: uppercase;
}

.portfolio-kicker {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.portfolio-kicker span {
  width: 2.4rem;
  height: 1px;
  background: currentColor;
}

.portfolio-hero {
  position: relative;
  height: calc(100svh - var(--portfolio-nav-height));
  min-height: 0;
  padding: clamp(30px, 5vh, 58px) 0;
  isolation: isolate;
}

.portfolio-hero::before {
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(circle at 77% 24%, color-mix(in srgb, var(--portfolio-cyan) 20%, transparent), transparent 26%),
    radial-gradient(circle at 72% 64%, color-mix(in srgb, var(--portfolio-accent) 17%, transparent), transparent 31%),
    linear-gradient(var(--portfolio-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--portfolio-border) 1px, transparent 1px);
  background-size: auto, auto, 72px 72px, 72px 72px;
  opacity: 0.55;
  content: "";
  mask-image: linear-gradient(to bottom, black 0%, transparent 95%);
}

.portfolio-hero::after {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(90deg, var(--portfolio-bg) 5%, transparent 52%, var(--portfolio-bg) 100%);
  content: "";
}

.portfolio-hero-orbit {
  position: absolute;
  z-index: -1;
  border: 1px solid color-mix(in srgb, var(--portfolio-accent) 20%, transparent);
  border-radius: 50%;
  pointer-events: none;
}

.portfolio-hero-orbit--one {
  top: 115px;
  right: -170px;
  width: 540px;
  height: 540px;
}

.portfolio-hero-orbit--two {
  top: 224px;
  right: -62px;
  width: 320px;
  height: 320px;
}

.portfolio-hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.5fr);
  gap: clamp(32px, 4vw, 72px);
  height: 100%;
  align-items: center;
}

.portfolio-hero-copy h1 {
  max-width: none;
  margin: 0 0 1.35rem;
  color: var(--portfolio-ink);
  font-size: clamp(3.4rem, 5.55vw, 6.65rem);
  font-weight: 760;
  letter-spacing: -0.065em;
  line-height: 0.95;
}

.portfolio-hero-copy h1 > span {
  display: block;
  white-space: nowrap;
}

.portfolio-hero-copy h1 em {
  display: inline;
  color: var(--portfolio-accent);
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
  letter-spacing: -0.045em;
}

.portfolio-hero-lead {
  max-width: 650px;
  margin: 0;
  color: var(--portfolio-muted);
  font-size: clamp(1rem, 1.4vw, 1.16rem);
  line-height: 1.75;
}

.portfolio-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2.1rem;
}

.portfolio-button {
  display: inline-flex;
  min-height: 48px;
  padding: 0.78rem 1.15rem;
  border: 1px solid var(--portfolio-border);
  border-radius: 999px;
  align-items: center;
  gap: 1rem;
  justify-content: center;
  font-size: 0.82rem;
  font-weight: 760;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.portfolio-button:hover,
.portfolio-button:focus-visible {
  transform: translateY(-2px);
}

.portfolio-button--primary {
  color: #fff !important;
  border-color: var(--portfolio-accent);
  background: var(--portfolio-accent);
  box-shadow: 0 14px 32px color-mix(in srgb, var(--portfolio-accent) 25%, transparent);
}

.portfolio-button--quiet {
  background: color-mix(in srgb, var(--portfolio-surface) 70%, transparent);
}

.portfolio-button svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.portfolio-hero-meta {
  display: flex;
  margin: clamp(1.5rem, 3vh, 2.4rem) 0 0;
  padding: 0;
  list-style: none;
}

.portfolio-hero-meta li {
  display: grid;
  gap: 0.2rem;
  min-width: 128px;
  padding-right: 1.4rem;
  border-right: 1px solid var(--portfolio-border);
}

.portfolio-hero-meta li + li {
  padding-left: 1.4rem;
}

.portfolio-hero-meta li:last-child {
  border-right: 0;
}

.portfolio-hero-meta strong {
  color: var(--portfolio-ink);
  font-size: 0.78rem;
}

.portfolio-hero-meta span {
  color: var(--portfolio-muted);
  font-size: 0.72rem;
}

.portfolio-profile-card {
  position: relative;
  width: min(100%, 390px);
  padding: 0;
  border: 0;
  background: transparent;
  justify-self: end;
}

.portfolio-profile-card::before {
  content: none;
}

.portfolio-profile-photo {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--portfolio-border);
  border-radius: 22px;
  background: var(--portfolio-surface-soft);
  box-shadow: var(--portfolio-shadow);
  aspect-ratio: 4 / 5;
}

.portfolio-profile-photo::after {
  content: none;
}

.portfolio-profile-photo img {
  width: 100%;
  height: 100%;
  margin: 0;
  border: 0;
  object-fit: cover;
  object-position: center top;
}

.portfolio-social-links {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap: 0.45rem;
  margin-top: 1rem;
}

.portfolio-social-links a {
  --portfolio-social-color: var(--portfolio-accent);
  display: grid;
  border: 1px solid color-mix(in srgb, var(--portfolio-social-color) 20%, var(--portfolio-border));
  border-radius: 50%;
  color: var(--portfolio-social-color);
  background: color-mix(in srgb, var(--portfolio-social-color) 7%, #fff);
  box-shadow: 0 7px 18px rgba(26, 37, 58, 0.07);
  aspect-ratio: 1;
  place-items: center;
  transition: border-color 180ms ease, background 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.portfolio-social-links a:hover,
.portfolio-social-links a:focus-visible {
  border-color: color-mix(in srgb, var(--portfolio-social-color) 55%, transparent);
  color: var(--portfolio-social-color);
  background: color-mix(in srgb, var(--portfolio-social-color) 13%, #fff);
  box-shadow: 0 10px 24px color-mix(in srgb, var(--portfolio-social-color) 18%, transparent);
  transform: translateY(-3px) scale(1.04);
}

.portfolio-social-links svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

.portfolio-social-links .portfolio-social-link--email { --portfolio-social-color: #3567f0; }
.portfolio-social-links .portfolio-social-link--instagram { --portfolio-social-color: #e4405f; }
.portfolio-social-links .portfolio-social-link--x { --portfolio-social-color: #111111; }
.portfolio-social-links .portfolio-social-link--facebook { --portfolio-social-color: #0866ff; }
.portfolio-social-links .portfolio-social-link--linkedin { --portfolio-social-color: #0a66c2; }
.portfolio-social-links .portfolio-social-link--xiaohongshu { --portfolio-social-color: #ff2442; }
.portfolio-social-links .portfolio-social-link--douyin { --portfolio-social-color: #111111; }
.portfolio-social-links .portfolio-social-link--wechat { --portfolio-social-color: #07c160; }

.portfolio-social-link--douyin svg {
  filter: drop-shadow(-1px 0 #25f4ee) drop-shadow(1px 0 #fe2c55);
}

.portfolio-section {
  padding: 88px 0;
}

.portfolio-section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.55fr);
  gap: 2rem;
  align-items: end;
  margin-bottom: 3rem;
}

.portfolio-section-heading h2,
.portfolio-about h2,
.portfolio-contact h2 {
  margin: 0.65rem 0 0;
  color: var(--portfolio-ink);
  font-size: clamp(2.35rem, 4vw, 4.1rem);
  font-weight: 720;
  letter-spacing: -0.05em;
  line-height: 1.02;
}

.portfolio-section-heading > p {
  margin: 0;
  color: var(--portfolio-muted);
  font-size: 0.88rem;
  line-height: 1.65;
}

.portfolio-section-heading--compact {
  display: block;
  margin-bottom: 1.45rem;
}

.portfolio-section-heading--compact > p {
  color: var(--portfolio-accent);
  font-size: 0.72rem;
  font-weight: 800;
  line-height: 1.4;
}

.portfolio-work {
  border-top: 1px solid var(--portfolio-border);
  background: var(--portfolio-surface);
}

.portfolio-project-list {
  display: grid;
  gap: 1.15rem;
}

.portfolio-project-card {
  --tilt-x: 0deg;
  --tilt-y: 0deg;
  display: grid;
  grid-template-columns: minmax(360px, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(1.4rem, 3vw, 3.4rem);
  min-height: 340px;
  padding: 14px;
  overflow: hidden;
  border: 1px solid var(--portfolio-border);
  border-radius: 26px;
  background: var(--portfolio-bg);
  box-shadow: 0 10px 38px rgba(31, 47, 77, 0.04);
  align-items: stretch;
}

.portfolio-project-media {
  position: relative;
  display: block;
  height: 312px;
  min-height: 312px;
  overflow: hidden;
  border-radius: 18px;
  background: #060913;
  transform: perspective(1100px) rotateX(var(--tilt-y)) rotateY(var(--tilt-x));
  transform-style: preserve-3d;
  transition: transform 180ms ease, box-shadow 240ms ease;
}

.portfolio-project-card:hover .portfolio-project-media {
  box-shadow: 0 24px 60px rgba(14, 24, 47, 0.24);
}

.portfolio-project-media::after {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(4, 8, 20, 0.2), transparent 42%, rgba(4, 8, 20, 0.56)),
    linear-gradient(90deg, rgba(62, 222, 250, 0.08), transparent 35%);
  content: "";
  pointer-events: none;
}

.portfolio-project-image {
  width: 100%;
  height: 100%;
  margin: 0;
  border: 0;
  object-fit: cover;
  transition: transform 500ms cubic-bezier(0.2, 0.75, 0.2, 1), filter 300ms ease;
}

.portfolio-project-image--drone {
  animation: portfolio-drone-lift 4.3s ease-in-out infinite;
  transform-origin: center 62%;
}

.portfolio-project-card:hover .portfolio-project-image:not(.portfolio-project-image--drone) {
  transform: scale(1.035);
}

.portfolio-project-copy {
  display: flex;
  padding: 0.75rem 1rem 0.75rem 0;
  flex-direction: column;
  justify-content: center;
}

.portfolio-project-title-row {
  display: flex;
  gap: 1.25rem;
  align-items: flex-end;
  justify-content: space-between;
}

.portfolio-project-title-row h3 {
  margin: 0;
  color: var(--portfolio-ink);
  font-size: clamp(2.25rem, 3.35vw, 3.75rem);
  font-weight: 750;
  letter-spacing: -0.055em;
  line-height: 1;
}

.portfolio-project-icon-links {
  display: flex;
  flex: 0 0 auto;
  gap: 0.55rem;
}

.portfolio-project-icon-links a {
  display: grid;
  width: 42px;
  height: 42px;
  border: 1px solid var(--portfolio-border);
  border-radius: 50%;
  color: var(--portfolio-ink);
  background: var(--portfolio-surface);
  place-items: center;
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.portfolio-project-icon-links a:hover,
.portfolio-project-icon-links a:focus-visible {
  border-color: var(--portfolio-accent);
  color: #fff;
  background: var(--portfolio-accent);
  transform: translateY(-2px);
}

.portfolio-project-icon-links svg {
  width: 19px;
  height: 19px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.portfolio-project-icon-links a:last-child svg {
  fill: currentColor;
  stroke: none;
}

.portfolio-project-byline {
  margin: 0.7rem 0 0;
  color: var(--portfolio-accent);
  font-size: 0.76rem;
  font-weight: 720;
}

.portfolio-project-description {
  width: min(100%, 780px);
  max-width: 780px;
  margin: 1.2rem 0 0;
  color: var(--portfolio-muted);
  font-size: 0.88rem;
  line-height: 1.7;
  text-align: justify;
  text-align-last: auto;
  text-justify: inter-word;
  hyphens: auto;
}

.portfolio-news-list a:hover,
.portfolio-news-list a:focus-visible {
  color: var(--portfolio-accent);
}

.portfolio-about {
  border-top: 1px solid var(--portfolio-border);
  background: var(--portfolio-bg);
}

.portfolio-about-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(50px, 10vw, 130px);
}

.portfolio-about h2 {
  position: sticky;
  top: 110px;
}

.portfolio-about-paragraph {
  margin: 0;
  max-width: 820px;
  color: var(--portfolio-muted);
  font-size: 0.92rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.75;
}

.portfolio-about-paragraph + .portfolio-about-paragraph {
  margin: 1.5rem 0 0;
}

.portfolio-focus-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.8rem;
  margin-top: 3rem;
}

.portfolio-focus-grid article {
  min-height: 190px;
  padding: 1.2rem;
  border: 1px solid var(--portfolio-border);
  border-radius: 18px;
  background: var(--portfolio-surface);
}

.portfolio-focus-grid span {
  color: var(--portfolio-accent);
  font-size: 0.68rem;
  font-weight: 800;
}

.portfolio-focus-grid h3 {
  margin: 2.8rem 0 0.55rem;
  color: var(--portfolio-ink);
  font-size: 1rem;
  letter-spacing: -0.02em;
}

.portfolio-focus-grid p {
  margin: 0;
  color: var(--portfolio-muted);
  font-size: 0.7rem;
  line-height: 1.55;
}

.portfolio-news {
  border-top: 1px solid var(--portfolio-border);
  background: var(--portfolio-surface);
}

.portfolio-news-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--portfolio-border);
  list-style: none;
}

.portfolio-news-list li {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 2rem;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--portfolio-border);
  align-items: baseline;
}

.portfolio-news-list time {
  color: var(--portfolio-accent);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.portfolio-news-list p {
  margin: 0;
  color: var(--portfolio-muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

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

.portfolio-news-list a {
  color: var(--portfolio-ink);
  font-size: 0.74rem;
  font-weight: 750;
  white-space: nowrap;
}

.portfolio-contact {
  position: relative;
  padding: 112px 0;
  overflow: hidden;
  color: #fff;
  background: #0a1020;
}

.portfolio-contact::after {
  position: absolute;
  top: -230px;
  right: -120px;
  width: 560px;
  height: 560px;
  border: 1px solid rgba(91, 206, 255, 0.25);
  border-radius: 50%;
  box-shadow: 0 0 120px rgba(73, 112, 243, 0.24) inset;
  content: "";
}

.portfolio-contact-inner {
  position: relative;
  z-index: 1;
}

.portfolio-contact h2 {
  max-width: 860px;
  color: #fff;
}

.portfolio-contact a {
  display: inline-flex;
  margin-top: 2rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.55);
  color: #fff;
  align-items: center;
  gap: 1rem;
  font-size: clamp(1rem, 2vw, 1.4rem);
  font-weight: 650;
}

.page__footer {
  margin-top: 0;
}

.js .portfolio [data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 600ms ease, transform 650ms cubic-bezier(0.2, 0.75, 0.2, 1);
}

.js .portfolio [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes portfolio-drone-lift {
  0%, 100% { transform: translateY(4px) scale(1.015); }
  45% { transform: translateY(-8px) scale(1.03); }
  60% { transform: translateY(-7px) scale(1.03); }
}

@keyframes portfolio-nava-spin {
  to { transform: rotate(360deg); }
}

@keyframes portfolio-nava-breathe {
  0%, 100% { opacity: 0.72; transform: scale(0.96); }
  50% { opacity: 1; transform: scale(1.035); }
}

@keyframes portfolio-nava-drift {
  to { transform: rotate(342deg); }
}

@media (max-width: 980px) {
  .masthead__inner-wrap {
    padding-inline: 1.75rem;
  }

  .portfolio-shell {
    width: min(100% - 56px, 1680px);
  }

  .portfolio-hero {
    height: auto;
    min-height: calc(100svh - var(--portfolio-nav-height));
    padding: 52px 0 72px;
  }

  .portfolio-hero-layout,
  .portfolio-project-card,
  .portfolio-about-layout {
    grid-template-columns: 1fr;
  }

  .portfolio-hero-layout {
    gap: 3.5rem;
  }

  .portfolio-profile-card {
    max-width: 520px;
    width: min(100%, 520px);
    justify-self: start;
    transform: none;
  }

  .portfolio-project-media {
    height: auto;
    min-height: auto;
    aspect-ratio: 16 / 10;
  }

  .portfolio-project-copy {
    padding: 1.2rem 0.7rem 1.45rem;
  }

  .portfolio-about h2 {
    position: static;
  }
}

@media (max-width: 720px) {
  .masthead__inner-wrap {
    padding-inline: 1rem;
  }

  .portfolio-shell {
    width: min(100% - 32px, 1680px);
  }

  .portfolio-hero {
    padding: 42px 0 64px;
  }

  .portfolio-hero-copy h1 {
    font-size: clamp(2.85rem, 14.5vw, 4.4rem);
  }

  .portfolio-hero-copy h1 > span {
    white-space: normal;
  }

  .portfolio-hero-lead {
    font-size: 0.92rem;
  }

  .portfolio-hero-meta {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }

  .portfolio-hero-meta li,
  .portfolio-hero-meta li + li {
    min-width: 0;
    padding: 0 0.65rem;
  }

  .portfolio-hero-meta li:first-child {
    padding-left: 0;
  }

  .portfolio-hero-meta strong {
    font-size: 0.66rem;
  }

  .portfolio-hero-meta span {
    font-size: 0.62rem;
  }

  .portfolio-section {
    padding: 70px 0;
  }

  .portfolio-section-heading {
    grid-template-columns: 1fr;
    margin-bottom: 2.2rem;
  }

  .portfolio-section-heading--compact {
    margin-bottom: 1.25rem;
  }

  .portfolio-section-heading h2,
  .portfolio-about h2,
  .portfolio-contact h2 {
    font-size: clamp(2.15rem, 11vw, 3.25rem);
  }

  .portfolio-project-card {
    padding: 10px;
    border-radius: 22px;
  }

  .portfolio-project-media {
    border-radius: 15px;
  }

  .portfolio-project-title-row h3 {
    font-size: 2.35rem;
  }

  .portfolio-project-icon-links a {
    width: 38px;
    height: 38px;
  }

  .portfolio-project-description {
    font-size: 0.8rem;
  }

  .portfolio-social-links {
    gap: 0.55rem;
  }

  .portfolio-focus-grid {
    grid-template-columns: 1fr;
  }

  .portfolio-focus-grid article {
    min-height: 150px;
  }

  .portfolio-focus-grid h3 {
    margin-top: 1.8rem;
  }

  .portfolio-news-list li {
    grid-template-columns: 84px 1fr;
    gap: 0.7rem;
  }

  .portfolio-news-list p {
    font-size: 0.77rem;
  }

  .portfolio-contact {
    padding: 82px 0;
  }
}

@media (max-width: 360px) {
  .portfolio-social-links {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .portfolio *,
  .portfolio *::before,
  .portfolio *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .js .portfolio [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

/* 2026 bilingual portfolio refinement */
.masthead__inner-wrap {
  max-width: 1632px !important;
  padding-inline: 6rem;
}

.masthead__utility-item {
  position: absolute;
  top: 50%;
  right: 0;
  z-index: 101;
  transform: translateY(-50%);
}

.masthead__utility-item [role="button"] {
  display: grid;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--portfolio-border);
  border-radius: 50%;
  color: var(--portfolio-ink);
  background: var(--portfolio-surface);
  cursor: pointer;
  place-items: center;
  transition: color 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.masthead__utility-item [role="button"]:hover,
.masthead__utility-item [role="button"]:focus-visible {
  border-color: var(--portfolio-accent);
  color: var(--portfolio-accent);
  transform: translateY(-1px);
}

.masthead__utility-item svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}

.portfolio-shell {
  width: min(1440px, calc(100% - 192px));
}

.portfolio-hero {
  padding-block: clamp(24px, 3.8vh, 46px);
}

.portfolio-hero-layout {
  grid-template-columns: minmax(0, 1.16fr) minmax(390px, 0.84fr);
  gap: clamp(38px, 4.4vw, 74px);
}

.portfolio-hero-copy h1 {
  font-size: clamp(3.2rem, 5.25vw, 6.3rem);
}

.portfolio-hero-lead {
  max-width: 680px;
}

.portfolio-hero-controls {
  width: max-content;
  max-width: 100%;
}

.portfolio-actions {
  display: flex;
  width: max-content;
  max-width: 100%;
  flex-wrap: nowrap;
}

.portfolio-button--quiet {
  justify-self: auto;
}

.portfolio-hero-meta {
  display: grid;
  width: 100%;
  grid-template-columns: max-content max-content minmax(0, 1fr);
  column-gap: 0;
}

.portfolio-hero-meta li {
  width: max-content;
  min-width: 0;
  padding: 0 1rem 0 0;
  border-right: 0;
  white-space: nowrap;
}

.portfolio-hero-meta li + li {
  padding-left: calc(1rem - 1px);
  border-left: 1px solid var(--portfolio-border);
}

.portfolio-hero-meta li:last-child {
  padding-right: 0;
  justify-self: start;
  text-align: left;
}

html[lang="zh-CN"] .portfolio-hero-copy h1 {
  font-size: clamp(3.35rem, 5.4vw, 6.45rem);
  letter-spacing: -0.06em;
  line-height: 1.03;
}

.portfolio-profile-card {
  width: min(100%, 520px);
}

.portfolio-story-card,
.portfolio-story-toggle,
.portfolio-story-inner,
.portfolio-story-face {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
}

.portfolio-story-card {
  perspective: 1400px;
}

.portfolio-story-toggle {
  position: relative;
  padding: 0;
  border: 0;
  color: inherit;
  background: transparent;
  cursor: pointer;
  text-align: left;
}

.portfolio-story-toggle:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--portfolio-accent) 55%, transparent);
  outline-offset: 5px;
}

.portfolio-story-inner {
  position: relative;
  transform-style: preserve-3d;
  transition: transform 680ms cubic-bezier(0.2, 0.72, 0.2, 1);
}

.portfolio-story-card.is-flipped .portfolio-story-inner {
  transform: rotateY(180deg);
}

.portfolio-story-face {
  position: absolute;
  inset: 0;
  overflow: hidden;
  border: 1px solid var(--portfolio-border);
  border-radius: 2px;
  background: var(--portfolio-surface);
  box-shadow: var(--portfolio-shadow);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.portfolio-story-face--front img {
  width: 100%;
  height: 100%;
  margin: 0;
  object-fit: cover;
}

.portfolio-media-picture {
  display: block;
  width: 100%;
  height: 100%;
}

.portfolio-story-face--back {
  display: flex;
  padding: clamp(1.65rem, 3.3vw, 3rem);
  background:
    radial-gradient(circle at 85% 18%, color-mix(in srgb, var(--portfolio-cyan) 25%, transparent), transparent 34%),
    linear-gradient(145deg, var(--portfolio-surface), var(--portfolio-surface-soft));
  flex-direction: column;
  justify-content: center;
  transform: rotateY(180deg);
}

.portfolio-story-eyebrow {
  margin-bottom: 0.75rem;
  color: var(--portfolio-accent);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.portfolio-story-face--back strong {
  color: var(--portfolio-ink);
  font-size: clamp(1.6rem, 2.8vw, 2.65rem);
  letter-spacing: -0.04em;
  line-height: 1.05;
}

.portfolio-story-copy {
  display: block;
  margin-top: 1rem;
  color: var(--portfolio-muted);
  font-size: clamp(0.82rem, 1vw, 0.96rem);
  line-height: 1.7;
}

.portfolio-story-hint,
.portfolio-story-return {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  display: inline-flex;
  padding: 0.55rem 0.72rem;
  border: 1px solid rgba(255, 255, 255, 0.34);
  color: #fff;
  background: rgba(7, 12, 20, 0.64);
  backdrop-filter: blur(10px);
  align-items: center;
  gap: 0.42rem;
  font-size: 0.68rem;
  font-weight: 750;
}

.portfolio-story-return {
  color: var(--portfolio-ink);
  border-color: var(--portfolio-border);
  background: color-mix(in srgb, var(--portfolio-surface) 82%, transparent);
}

.portfolio-story-hint svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}

.portfolio-section {
  padding-block: clamp(88px, 8vw, 138px);
}

.portfolio-section-heading {
  display: block;
  margin-bottom: clamp(2.4rem, 5vw, 4.6rem);
}

.portfolio-section-index,
.portfolio-section-heading .portfolio-section-index,
.portfolio-about .portfolio-section-index,
.portfolio-beyond .portfolio-section-index {
  display: flex;
  margin: 0;
  color: var(--portfolio-ink);
  font-size: clamp(3.1rem, 4.9vw, 5.25rem);
  font-weight: 760;
  letter-spacing: -0.06em;
  line-height: 0.94;
  text-transform: none;
}

.portfolio-section-index > span:first-child {
  flex: none;
  margin-right: 0.25em;
  color: var(--portfolio-accent);
  white-space: nowrap;
}

.portfolio-project-list {
  gap: 1.5rem;
}

.portfolio-project-card {
  display: grid;
  min-height: 0;
  padding: 12px;
  border-radius: 0;
  grid-template-columns: minmax(280px, 340px) minmax(0, 1fr);
  gap: clamp(24px, 3vw, 48px);
  transform: none;
}

.portfolio-project-media {
  position: relative;
  height: auto;
  min-height: 0;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--portfolio-border) 72%, transparent);
  border-radius: 0;
  background: #0a101b;
  aspect-ratio: 1;
  transform: none;
  touch-action: none;
}

.portfolio-project-card:hover .portfolio-project-media {
  transform: none;
}

.portfolio-project-media::after {
  content: none;
}

.portfolio-project-fallback,
.portfolio-project-media canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
}

.portfolio-project-picture,
.journey-card-picture {
  display: contents;
}

.portfolio-project-fallback {
  border: 0;
  object-fit: cover;
  opacity: 1;
  transition: opacity 300ms ease;
}

.portfolio-project-media--static {
  background: #f7fafc;
  touch-action: auto;
}

.portfolio-project-fallback--contain {
  object-fit: contain;
}

.portfolio-project-media canvas {
  display: block;
  opacity: 0;
  transition: opacity 300ms ease;
}

.portfolio-project-media--nava {
  background:
    radial-gradient(circle at 34% 20%, rgba(255, 255, 255, 0.64), transparent 30%),
    linear-gradient(145deg, #dff6ff 0%, #6fc4eb 45%, #0a4978 100%);
  touch-action: auto;
}

.portfolio-project-media--nava .portfolio-nava-canvas {
  z-index: 0;
  opacity: 1;
}

.portfolio-nava-visual {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: grid;
  padding: clamp(1.1rem, 4.5vw, 1.7rem);
  place-items: center;
  pointer-events: none;
}

.portfolio-nava-visual::before,
.portfolio-nava-visual::after {
  position: absolute;
  border-radius: 50%;
  content: "";
  pointer-events: none;
}

.portfolio-nava-visual::before {
  width: 74%;
  height: 74%;
  border: 1px solid rgba(248, 253, 255, 0.42);
  box-shadow:
    inset 0 0 52px rgba(248, 253, 255, 0.18),
    0 0 80px rgba(58, 178, 232, 0.3);
  animation: portfolio-nava-breathe 7.5s ease-in-out infinite;
}

.portfolio-nava-visual::after {
  width: 112%;
  height: 112%;
  border: 1px solid rgba(255, 255, 255, 0.16);
  transform: rotate(-18deg);
  animation: portfolio-nava-drift 14s linear infinite;
}

.portfolio-nava-orb {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 2;
  width: min(58%, 198px);
  aspect-ratio: 1;
  border: 1px solid rgba(248, 253, 255, 0.36);
  border-radius: 50%;
  background:
    radial-gradient(circle at 36% 28%, rgba(255, 255, 255, 0.86), rgba(255, 255, 255, 0.12) 24%, transparent 44%),
    radial-gradient(circle, rgba(5, 40, 69, 0.08), rgba(5, 40, 69, 0.28));
  box-shadow:
    inset 0 0 36px rgba(255, 255, 255, 0.22),
    0 28px 70px rgba(4, 38, 70, 0.32);
  text-align: center;
  transform: translate(-50%, -50%);
  isolation: isolate;
}

.portfolio-nava-orb strong {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 2;
  color: #071827;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.2rem, 5.6vw, 3.7rem);
  font-weight: 900;
  letter-spacing: -0.065em;
  line-height: 0.9;
  text-shadow: 0 3px 18px rgba(248, 253, 255, 0.62);
  transform: translate(-50%, -50%);
  white-space: nowrap;
}

.portfolio-nava-orb small {
  position: absolute;
  top: calc(50% + clamp(1.45rem, 4.3vw, 2.25rem));
  left: 50%;
  z-index: 2;
  color: rgba(7, 24, 39, 0.72);
  font-size: clamp(0.58rem, 1.3vw, 0.72rem);
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transform: translateX(-50%);
  white-space: nowrap;
}

.portfolio-nava-ring {
  position: absolute;
  inset: 9%;
  border-radius: 50%;
  pointer-events: none;
}

.portfolio-nava-ring--outer {
  border: 2px solid transparent;
  border-top-color: rgba(255, 255, 255, 0.8);
  border-right-color: rgba(116, 212, 255, 0.58);
  animation: portfolio-nava-spin 11s linear infinite;
}

.portfolio-nava-ring--inner {
  inset: 20%;
  border: 1px solid transparent;
  border-bottom-color: rgba(239, 252, 255, 0.72);
  border-left-color: rgba(7, 80, 132, 0.45);
  animation: portfolio-nava-spin 8s linear infinite reverse;
}

.portfolio-project-media--nava:not(.is-motion-active) .portfolio-nava-visual::before,
.portfolio-project-media--nava:not(.is-motion-active) .portfolio-nava-visual::after,
.portfolio-project-media--nava:not(.is-motion-active) .portfolio-nava-ring {
  animation-play-state: paused;
}

.portfolio-project-media[data-model-ready="true"] canvas {
  opacity: 1;
}

.portfolio-project-media[data-model-ready="true"] .portfolio-project-fallback {
  opacity: 0;
}

.portfolio-model-hint {
  position: absolute;
  right: 0.8rem;
  bottom: 0.8rem;
  z-index: 2;
  display: inline-flex;
  padding: 0.48rem 0.62rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: rgba(255, 255, 255, 0.86);
  background: rgba(7, 12, 20, 0.62);
  backdrop-filter: blur(8px);
  align-items: center;
  gap: 0.35rem;
  font-size: 0.66rem;
  font-weight: 700;
  pointer-events: none;
}

.portfolio-model-hint svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
}

.portfolio-project-copy {
  padding: clamp(0.9rem, 1.7vw, 1.55rem) clamp(1rem, 2.3vw, 2.1rem) clamp(0.9rem, 1.7vw, 1.55rem) 0;
}

.portfolio-project-title-row h3 {
  font-size: clamp(2.55rem, 4vw, 4.25rem);
}

.portfolio-project-icon-links a {
  border-radius: 0;
}

.portfolio-project-description {
  width: min(100%, 780px);
  max-width: 780px;
  margin-top: 0.9rem;
  font-size: clamp(0.88rem, 1.02vw, 1rem);
  line-height: 1.62;
}

.portfolio-project-byline {
  display: flex;
  margin-top: 0.55rem;
  align-items: center;
  gap: 0.42rem;
  font-size: 0.94rem;
}

.portfolio-project-byline a {
  color: inherit;
  text-decoration: none;
}

.portfolio-project-byline a:hover,
.portfolio-project-byline a:focus-visible {
  color: var(--portfolio-ink);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.portfolio-project-byline--authors {
  flex-wrap: wrap;
  row-gap: 0.24rem;
}

.portfolio-project-card--racecar .portfolio-project-description {
  max-width: 780px;
}

.portfolio-project-card--corevqa .portfolio-project-description {
  max-width: 780px;
}

.portfolio-project-card--corevqa .portfolio-project-title-row h3 {
  max-width: 1080px;
  font-size: clamp(1.7rem, 2.15vw, 2.4rem);
  letter-spacing: -0.04em;
  line-height: 1.08;
}

.portfolio-project-card--corevqa .portfolio-project-title-row h3 span {
  white-space: nowrap;
}

.portfolio-project-card--nava .portfolio-project-title-row h3 {
  letter-spacing: -0.055em;
}

html[lang="zh-CN"] .portfolio-project-description {
  text-justify: inter-ideograph;
}

.portfolio-about {
  padding-block: clamp(72px, 6.5vw, 112px);
  background: var(--portfolio-bg);
}

.portfolio-about .portfolio-section-heading {
  margin-bottom: clamp(1.75rem, 2.5vw, 2.25rem);
}

.portfolio-about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(300px, 0.52fr);
  gap: clamp(32px, 4.5vw, 72px);
  align-items: start;
}

.portfolio-about-copy {
  max-width: none;
}

.portfolio-about-paragraph {
  max-width: none;
  margin: 0;
  color: var(--portfolio-muted);
  font-size: clamp(1rem, 1.35vw, 1.25rem);
  font-weight: 400;
  letter-spacing: -0.012em;
  line-height: 1.75;
  hyphens: auto;
  text-align: justify;
  text-align-last: start;
  text-justify: inter-word;
}

.portfolio-about-paragraph + .portfolio-about-paragraph {
  margin-top: 1.35rem;
}

.portfolio-about-topics {
  display: grid;
  gap: 0.72rem;
  max-width: none;
  margin: 1.55rem 0 0;
  padding: 0;
  list-style: none;
}

.portfolio-about-topics li {
  display: grid;
  grid-template-columns: 0.45rem 5.2rem minmax(0, 1fr);
  gap: 0.72rem;
  align-items: center;
  color: var(--portfolio-ink);
  font-size: clamp(0.98rem, 1.2vw, 1.16rem);
  font-weight: 400;
  line-height: 1.45;
}

.portfolio-about-topics li::before {
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: var(--portfolio-accent);
  content: "";
}

.portfolio-about-topic-label {
  color: var(--portfolio-accent);
  font-size: 0.72em;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.portfolio-about-teacher-link {
  color: var(--portfolio-accent);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--portfolio-accent) 38%, transparent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.16em;
}

.portfolio-about-teacher-link:hover,
.portfolio-about-teacher-link:focus-visible {
  color: var(--portfolio-ink);
  text-decoration-color: currentColor;
}

html[lang="zh-CN"] .portfolio-about-paragraph {
  letter-spacing: 0;
  text-justify: inter-character;
}

.portfolio-about-portrait {
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--portfolio-border);
  background: var(--portfolio-surface);
  box-shadow: var(--portfolio-shadow);
  aspect-ratio: 4 / 5;
}

.portfolio-about-portrait img {
  width: 100%;
  height: 100%;
  margin: 0;
  border: 0;
  object-fit: cover;
  object-position: center top;
}

.portfolio-news-list li {
  grid-template-columns: 105px minmax(0, 1fr) minmax(74px, auto);
  gap: clamp(1rem, 2.6vw, 2.6rem);
  padding-block: 1.7rem;
  align-items: start;
}

.portfolio-news-list p {
  font-size: clamp(0.96rem, 1.14vw, 1.06rem);
  line-height: 1.65;
}

.portfolio-news-list time {
  font-size: 0.84rem;
}

.portfolio-news-list > li > a {
  margin-top: 0.16rem;
  justify-self: end;
  white-space: nowrap;
}

.portfolio-news-list > li > .portfolio-news-link {
  display: grid;
  width: 42px;
  height: 42px;
  margin-top: 0;
  border: 1px solid var(--portfolio-border);
  border-radius: 50%;
  color: var(--portfolio-ink);
  background: var(--portfolio-surface);
  place-items: center;
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.portfolio-news-list > li > .portfolio-news-link:hover,
.portfolio-news-list > li > .portfolio-news-link:focus-visible {
  border-color: var(--portfolio-accent);
  color: #fff;
  background: var(--portfolio-accent);
  transform: translateY(-2px);
}

.portfolio-news-link svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}

.portfolio-news-link--github svg {
  width: 22px;
  height: 22px;
  stroke: none;
}

.portfolio-news-link--github .portfolio-github-mark {
  fill: #181717;
}

html[data-theme="dark"] .portfolio-news-link--github .portfolio-github-mark,
.portfolio-news-link--github:hover .portfolio-github-mark,
.portfolio-news-link--github:focus-visible .portfolio-github-mark {
  fill: #fff;
}

#theme-toggle a {
  font-size: 1.02rem;
}

.portfolio-beyond {
  padding-block: clamp(72px, 7vw, 112px);
  border-top: 1px solid var(--portfolio-border);
  background: var(--portfolio-surface-soft);
}

.portfolio-beyond .portfolio-shell {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.75fr);
  gap: clamp(40px, 8vw, 130px);
  align-items: end;
}

.portfolio-beyond p {
  margin: 0;
  color: var(--portfolio-muted);
  font-size: clamp(1rem, 1.35vw, 1.22rem);
  line-height: 1.7;
}

.portfolio-page {
  display: flex;
  min-height: 100vh;
  padding-bottom: 0;
  margin-bottom: 0 !important;
  flex-direction: column;
}

.portfolio-page > .portfolio {
  width: 100%;
  flex: 1 0 auto;
}

@supports (content-visibility: auto) {
  .portfolio-work,
  .portfolio-about,
  .portfolio-news,
  .portfolio-journey {
    content-visibility: auto;
  }

  .portfolio-work {
    contain-intrinsic-block-size: auto 1850px;
  }

  .portfolio-about {
    contain-intrinsic-block-size: auto 840px;
  }

  .portfolio-news {
    contain-intrinsic-block-size: auto 900px;
  }

  .portfolio-journey {
    contain-intrinsic-block-size: auto 660px;
  }
}

.portfolio-page .page__footer {
  position: static;
  float: none;
  clear: both;
  margin-top: 0 !important;
}

.portfolio-page .page__footer footer {
  display: grid;
  width: min(1440px, calc(100% - 192px));
  max-width: none;
  margin: 0 auto;
  padding: 1.8rem 0 1.6rem;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.45rem clamp(1.5rem, 4vw, 4rem);
  align-items: center;
}

.portfolio-page .page__footer footer > .portfolio-footer-sitemap,
.portfolio-page .page__footer-follow,
.portfolio-page .page__footer-copyright {
  grid-column: 1;
}

.portfolio-footer-sitemap {
  width: max-content;
  color: inherit;
  font-size: 1rem;
  font-weight: 700;
}

.portfolio-footer-social {
  display: flex;
  grid-column: 2;
  grid-row: 1 / span 3;
  flex-wrap: wrap;
  gap: 0.55rem;
  justify-content: flex-end;
  align-self: center;
  max-width: 430px;
}

.portfolio-footer-social a {
  --portfolio-footer-social-color: var(--portfolio-accent);
  display: grid;
  width: 38px;
  height: 38px;
  border: 1px solid color-mix(in srgb, var(--portfolio-footer-social-color) 34%, var(--portfolio-border));
  color: var(--portfolio-footer-social-color);
  background: color-mix(in srgb, var(--portfolio-footer-social-color) 11%, transparent);
  place-items: center;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.portfolio-footer-social a:hover,
.portfolio-footer-social a:focus-visible {
  border-color: var(--portfolio-footer-social-color);
  background: color-mix(in srgb, var(--portfolio-footer-social-color) 20%, transparent);
  transform: translateY(-2px);
}

.portfolio-footer-social svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.portfolio-footer-social .portfolio-footer-social--email {
  --portfolio-footer-social-color: #4c7df0;
}

.portfolio-footer-social .portfolio-footer-social--instagram {
  --portfolio-footer-social-color: #e4407f;
}

.portfolio-footer-social .portfolio-footer-social--x,
.portfolio-footer-social .portfolio-footer-social--github {
  --portfolio-footer-social-color: var(--portfolio-ink);
}

.portfolio-footer-social .portfolio-footer-social--facebook {
  --portfolio-footer-social-color: #1877f2;
}

.portfolio-footer-social .portfolio-footer-social--linkedin {
  --portfolio-footer-social-color: #0a66c2;
}

.portfolio-footer-social .portfolio-footer-social--xiaohongshu {
  --portfolio-footer-social-color: #ff2442;
}

.portfolio-footer-social .portfolio-footer-social--douyin {
  --portfolio-footer-social-color: #0fd3d9;
}

.portfolio-footer-social .portfolio-footer-social--wechat {
  --portfolio-footer-social-color: #21c363;
}

@media (max-width: 1100px) {
  .masthead__inner-wrap {
    padding-inline: 2rem;
  }

  .portfolio-shell {
    width: min(1440px, calc(100% - 64px));
  }

  .portfolio-page .page__footer footer {
    width: min(1440px, calc(100% - 64px));
  }

  .portfolio-hero-layout {
    grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
    gap: 36px;
  }

  .portfolio-hero-copy h1 {
    font-size: clamp(3rem, 5.5vw, 4.7rem);
  }

  .portfolio-project-card {
    grid-template-columns: minmax(280px, 330px) minmax(0, 1fr);
  }
}

@media (max-width: 820px) {
  .portfolio-hero {
    height: auto;
    min-height: calc(100svh - var(--portfolio-nav-height));
    padding-block: 48px;
  }

  .portfolio-hero-layout,
  .portfolio-project-card,
  .portfolio-about-layout,
  .portfolio-beyond .portfolio-shell {
    grid-template-columns: 1fr;
  }

  .portfolio-profile-card {
    width: min(100%, 620px);
    justify-self: start;
  }

  .portfolio-project-card {
    gap: 0;
  }

  .portfolio-project-media {
    width: min(100%, 420px);
  }

  .portfolio-project-copy {
    padding: 2rem 1.15rem 2.2rem;
  }

  .portfolio-about-portrait {
    width: min(100%, 390px);
    margin-top: 0;
  }

  .portfolio-about-paragraph {
    hyphens: manual;
    text-align: start;
    text-align-last: auto;
    text-justify: auto;
    text-wrap: wrap;
  }

  .portfolio-beyond .portfolio-shell {
    gap: 2rem;
  }
}

@media (max-width: 720px) {
  .masthead__inner-wrap {
    padding-inline: 1rem;
  }

  .greedy-nav .visible-links .masthead__menu-item a {
    margin-inline: 0.12rem !important;
    padding-inline: 0 !important;
  }

  .masthead__menu-item--lg a {
    font-size: 0.96rem;
    margin-left: 0 !important;
    margin-right: 0.15rem !important;
    white-space: nowrap;
  }

  .masthead__menu-item:not(.masthead__menu-item--lg) a {
    font-size: 0.76rem;
    letter-spacing: 0.03em;
  }

  #theme-toggle {
    display: none;
  }

  .masthead__utility-item [role="button"] {
    width: 38px;
    height: 38px;
  }

  .portfolio-shell {
    width: min(1440px, calc(100% - 32px));
  }

  .portfolio-page .page__footer footer {
    width: min(1440px, calc(100% - 32px));
  }

  .portfolio-hero-copy h1,
  html[lang="zh-CN"] .portfolio-hero-copy h1 {
    font-size: clamp(2.2rem, 9.5vw, 3rem);
    line-height: 0.98;
  }

  .portfolio-hero-copy h1 > span {
    white-space: nowrap;
  }

  .portfolio-story-hint {
    right: 0.7rem;
    bottom: 0.7rem;
  }

  .portfolio-story-face--back {
    padding: 1.25rem;
  }

  .portfolio-story-face--back strong {
    font-size: clamp(1.35rem, 6.5vw, 2rem);
  }

  .portfolio-story-copy {
    margin-top: 0.65rem;
    font-size: clamp(0.7rem, 3.2vw, 0.84rem);
    line-height: 1.5;
  }

  .portfolio-story-return {
    right: 0.7rem;
    bottom: 0.7rem;
  }

  .portfolio-section-index,
  .portfolio-section-heading .portfolio-section-index,
  .portfolio-about .portfolio-section-index,
  .portfolio-beyond .portfolio-section-index {
    font-size: clamp(2.4rem, 11.2vw, 3.65rem);
    flex-wrap: wrap;
  }

  .portfolio-project-card {
    padding: 8px;
  }

  .portfolio-project-media {
    width: 100%;
  }

  .portfolio-about {
    padding-block: 56px;
  }

  html[lang="zh-CN"] .portfolio-hero-copy h1 {
    line-height: 1.04;
  }

  .portfolio-hero-controls {
    width: max-content;
    max-width: 100%;
  }

  .portfolio-actions {
    display: flex;
    width: max-content;
    max-width: 100%;
  }

  .portfolio-hero-meta {
    grid-template-columns: max-content max-content minmax(0, 1fr);
  }

  .portfolio-hero-meta li {
    padding-right: 0.55rem;
  }

  .portfolio-hero-meta li + li {
    padding-left: 0.55rem;
  }

  .portfolio-project-title-row h3 {
    font-size: clamp(2.25rem, 11vw, 3.6rem);
  }

  .portfolio-project-card--corevqa .portfolio-project-title-row h3 {
    font-size: clamp(1.3rem, 6vw, 2rem);
  }

  .portfolio-project-card--corevqa .portfolio-project-title-row h3 span {
    white-space: normal;
  }

  .portfolio-news-list li {
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 0.85rem;
  }

  .portfolio-news-list > li > a,
  .portfolio-news-list > li > span:last-child {
    grid-column: 2;
    justify-self: end;
  }

  .portfolio-page .page__footer footer {
    grid-template-columns: 1fr;
  }

  .portfolio-footer-social {
    grid-column: 1;
    grid-row: auto;
    justify-content: flex-start;
    max-width: 100%;
    margin-top: 0.4rem;
  }
}

@media (max-width: 430px) {
  .portfolio-story-hint > span {
    display: none;
  }

  .portfolio-social-links {
    gap: 0.38rem;
  }
}

/* My Journey */
.portfolio-journey {
  padding-block: clamp(88px, 8vw, 138px);
  border-top: 1px solid var(--portfolio-border);
  background: var(--portfolio-surface-soft);
}

.portfolio-journey-heading {
  display: flex;
  margin-bottom: clamp(2.4rem, 5vw, 4.6rem);
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
}

.portfolio-journey .portfolio-section-index {
  font-size: clamp(3.1rem, 4.9vw, 5.25rem);
}

.portfolio-journey-more {
  display: inline-flex;
  width: clamp(58px, 5vw, 74px);
  height: clamp(58px, 5vw, 74px);
  flex: none;
  border: 1px solid var(--portfolio-border);
  border-radius: 50%;
  color: var(--portfolio-ink);
  background: var(--portfolio-surface);
  box-shadow: 0 12px 30px rgba(16, 24, 40, 0.08);
  align-items: center;
  justify-content: center;
  transition: color 180ms ease, background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.portfolio-journey-more:hover,
.portfolio-journey-more:focus-visible {
  color: #fff;
  border-color: var(--portfolio-accent);
  background: var(--portfolio-accent);
  transform: translateX(4px);
}

.portfolio-journey-more svg,
.journey-back svg,
.journey-modal button svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.portfolio-journey-grid,
.journey-archive-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(14px, 1.7vw, 26px);
}

.journey-card {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  color: #fff;
  background: #111827;
  box-shadow: 0 18px 42px rgba(15, 23, 42, 0.14);
  aspect-ratio: 4 / 3;
  cursor: pointer;
  isolation: isolate;
  text-align: left;
}

.journey-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  border: 0;
  object-fit: cover;
  transition: transform 480ms cubic-bezier(0.22, 1, 0.36, 1), filter 300ms ease;
}

.journey-card-shade {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(10, 14, 21, 0.28), rgba(10, 14, 21, 0.58));
  transition: background 280ms ease;
}

.journey-card-title {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 2;
  width: min(84%, 380px);
  color: #fff;
  font-size: clamp(1.35rem, 2vw, 2.35rem);
  font-weight: 760;
  letter-spacing: -0.04em;
  line-height: 1.05;
  text-align: center;
  text-shadow: 0 3px 18px rgba(0, 0, 0, 0.35);
  transform: translate(-50%, -50%);
}

.journey-card:hover img,
.journey-card:focus-visible img {
  filter: saturate(1.08);
  transform: scale(1.045);
}

.journey-card:hover .journey-card-shade,
.journey-card:focus-visible .journey-card-shade {
  background: linear-gradient(180deg, rgba(20, 50, 120, 0.22), rgba(10, 14, 21, 0.66));
}

.journey-card:focus-visible,
.portfolio-journey-more:focus-visible,
.journey-back:focus-visible,
.journey-modal button:focus-visible {
  outline: 3px solid var(--portfolio-accent);
  outline-offset: 4px;
}

/* Journey archive page */
.journey-page {
  min-height: 100vh;
  background: var(--portfolio-bg);
}

.journey-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(36px, 4vw, 64px) clamp(42px, 4.5vw, 72px);
  border-bottom: 1px solid var(--portfolio-border);
  background:
    radial-gradient(circle at 82% 22%, color-mix(in srgb, var(--portfolio-cyan) 30%, transparent), transparent 31%),
    linear-gradient(145deg, var(--portfolio-bg), var(--portfolio-surface-soft));
}

.journey-hero::after {
  position: absolute;
  inset: 0;
  content: "";
  background-image:
    linear-gradient(color-mix(in srgb, var(--portfolio-border) 42%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--portfolio-border) 42%, transparent) 1px, transparent 1px);
  background-size: 90px 90px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.65), transparent 82%);
  pointer-events: none;
}

.journey-hero .portfolio-shell {
  position: relative;
  z-index: 1;
}

.journey-back {
  display: inline-flex;
  margin-bottom: clamp(2rem, 3vw, 3.5rem);
  color: var(--portfolio-muted);
  align-items: center;
  gap: 0.65rem;
  font-size: 0.83rem;
  font-weight: 760;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.journey-back:hover {
  color: var(--portfolio-accent);
}

.journey-back svg {
  width: 19px;
  height: 19px;
}

.journey-kicker {
  margin: 0 0 1rem;
  color: var(--portfolio-accent);
  font-size: clamp(0.72rem, 0.9vw, 0.9rem);
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.journey-hero h1 {
  max-width: 1040px;
  margin: 0;
  color: var(--portfolio-ink);
  font-size: clamp(3.6rem, 7vw, 7.2rem);
  font-weight: 780;
  letter-spacing: -0.075em;
  line-height: 0.88;
}

.journey-archive {
  padding-block: clamp(76px, 9vw, 140px);
}

.journey-archive-heading {
  display: flex;
  margin-bottom: clamp(2.5rem, 5vw, 5rem);
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
}

.journey-archive-heading h2 {
  margin: 0;
  color: var(--portfolio-ink);
  font-size: clamp(2.7rem, 5vw, 5.4rem);
  font-weight: 760;
  letter-spacing: -0.055em;
  line-height: 0.95;
}

.journey-card--archive {
  aspect-ratio: 4 / 3;
  font-family: inherit;
}

.journey-card--archive .journey-card-title {
  font-size: clamp(1.45rem, 2vw, 2.25rem);
}

.journey-card-index,
.journey-card-count {
  position: absolute;
  z-index: 2;
  top: 1rem;
  left: 1rem;
  color: rgba(255, 255, 255, 0.84);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.journey-card-count {
  top: auto;
  right: 1rem;
  bottom: 1rem;
  left: auto;
  letter-spacing: 0.03em;
}

/* Journey modal */
body.journey-modal-open {
  overflow: hidden;
}

.journey-modal[hidden] {
  display: none;
}

.journey-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: grid;
  padding: clamp(12px, 2vw, 30px);
  opacity: 0;
  place-items: center;
  transition: opacity 180ms ease;
}

.journey-modal.is-open {
  opacity: 1;
}

.journey-modal-backdrop {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  background: rgba(3, 7, 14, 0.88);
  backdrop-filter: blur(14px);
  cursor: default;
}

.journey-modal-panel {
  position: relative;
  display: grid;
  width: min(1500px, 96vw);
  height: min(920px, 92vh);
  overflow: hidden;
  color: #fff;
  background: #090d14;
  box-shadow: 0 32px 90px rgba(0, 0, 0, 0.48);
  grid-template-rows: auto minmax(0, 1fr);
  transform: translateY(12px) scale(0.985);
  transition: transform 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

.journey-modal.is-open .journey-modal-panel {
  transform: translateY(0) scale(1);
}

.journey-modal-header {
  display: flex;
  min-height: 92px;
  padding: 1.25rem clamp(1rem, 2.5vw, 2.4rem);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.journey-modal-eyebrow {
  display: block;
  margin-bottom: 0.3rem;
  color: #759bff;
  font-size: 0.67rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.journey-modal-header h2 {
  margin: 0;
  color: #fff;
  font-size: clamp(1.25rem, 2.3vw, 2.35rem);
  letter-spacing: -0.035em;
  line-height: 1.05;
}

.journey-modal-close,
.journey-modal-arrow {
  display: inline-flex;
  width: 50px;
  height: 50px;
  flex: none;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  color: #fff;
  background: rgba(255, 255, 255, 0.07);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.journey-modal-close:hover,
.journey-modal-arrow:hover {
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.16);
  transform: scale(1.04);
}

.journey-modal-stage {
  display: grid;
  min-height: 0;
  overflow: hidden;
  padding: clamp(12px, 2vw, 28px);
  background: #090d14;
  grid-template-columns: 60px minmax(0, 1fr) 60px;
  grid-template-rows: minmax(0, 1fr);
  gap: clamp(8px, 1.5vw, 22px);
  align-items: center;
}

.journey-modal-stage figure {
  position: relative;
  display: block;
  min-width: 0;
  min-height: 0;
  height: auto;
  overflow: hidden;
  margin: 0;
  align-self: stretch;
}

.journey-modal-stage img {
  position: absolute;
  inset: 0 0 48px;
  width: 100% !important;
  height: calc(100% - 48px) !important;
  min-height: 0;
  margin: 0;
  border: 0;
  background: #05080d;
  object-fit: contain;
  object-position: center;
  touch-action: pan-y;
  user-select: none;
}

.journey-modal-stage img.is-entering {
  animation: journey-image-in 220ms ease both;
}

.journey-modal-stage figcaption {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
  height: 48px;
  padding-top: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  font-size: 0.82rem;
}

[data-gallery-counter] {
  flex: none;
  color: #fff;
  font-variant-numeric: tabular-nums;
  font-weight: 760;
  letter-spacing: 0.08em;
}

@keyframes journey-image-in {
  from { opacity: 0.35; transform: scale(0.994); }
  to { opacity: 1; transform: scale(1); }
}

@media (max-width: 900px) {
  .portfolio-journey-grid,
  .journey-archive-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .portfolio-journey-grid > :last-child,
  .journey-archive-grid > :last-child {
    grid-column: 1 / -1;
    width: calc(50% - clamp(7px, 0.85vw, 13px));
  }
}

@media (max-width: 640px) {
  .portfolio-journey-heading,
  .journey-archive-heading {
    align-items: center;
  }

  .portfolio-journey-more {
    width: 52px;
    height: 52px;
  }

  .portfolio-journey-grid,
  .journey-archive-grid {
    grid-template-columns: 1fr;
  }

  .portfolio-journey-grid > :last-child,
  .journey-archive-grid > :last-child {
    grid-column: auto;
    width: 100%;
  }

  .journey-hero h1 {
    font-size: clamp(3.25rem, 16vw, 4.8rem);
  }

  .journey-back {
    margin-bottom: 2rem;
  }

  .journey-modal {
    padding: 0;
  }

  .journey-modal-panel {
    width: 100vw;
    height: 100svh;
  }

  .journey-modal-header {
    min-height: 78px;
    padding: 0.85rem 1rem;
  }

  .journey-modal-close {
    width: 44px;
    height: 44px;
  }

  .journey-modal-stage {
    position: relative;
    display: grid;
    padding: 10px 10px 72px;
    grid-template-columns: 1fr;
    grid-template-rows: minmax(0, 1fr);
  }

  .journey-modal-stage figure {
    height: auto;
  }

  .journey-modal-arrow {
    position: absolute;
    bottom: 15px;
    z-index: 2;
    width: 44px;
    height: 44px;
  }

  .journey-modal-arrow--previous {
    left: 14px;
  }

  .journey-modal-arrow--next {
    right: 14px;
  }

  .journey-modal-stage figcaption {
    position: absolute;
    right: 70px;
    bottom: 15px;
    left: 70px;
    min-height: 44px;
    padding: 0;
    justify-content: center;
  }

  [data-gallery-caption] {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .journey-card img,
  .journey-modal,
  .journey-modal-panel,
  .journey-modal-stage img,
  .portfolio-nava-visual::before,
  .portfolio-nava-visual::after,
  .portfolio-nava-ring {
    animation: none !important;
    transition: none !important;
  }
}