:root {
  --blue: #2b2bd6;
  --paper: #f6f2e8;
  --menu: #b8b5f3;
  --menu-on: #1f1fae;
  --badge: clamp(19px, 1.55vw, 27px);
  --gap: clamp(13px, 1.7vw, 26px);
  --label: clamp(34px, 5.35vw, 78px);
  --ink: #191970;
  --muted: #65657d;
  --line: rgba(25, 25, 112, .2);
  --gutter: clamp(24px, 5.6vw, 88px);
  font-family: "Songti SC", "Noto Serif SC", serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible, [tabindex="0"]:focus-visible { outline: 2px solid currentColor; outline-offset: 6px; }
[hidden] { display: none !important; }
.skip-link { position: absolute; top: 16px; left: 24px; padding: 12px; background: var(--paper); z-index: 10; transform: translateY(-180%); }
.skip-link:focus { transform: none; }
.site-header { position: absolute; top: 0; left: 0; z-index: 5; width: 100%; height: 104px; padding: 0 var(--gutter); display: flex; align-items: center; justify-content: space-between; gap: 24px; color: var(--paper); }
.logo { font-size: 28px; font-weight: 600; letter-spacing: -.08em; white-space: nowrap; }
.logo span { color: #b8b5f3; }
.hero { position: relative; height: 100vh; height: 100svh; min-height: 560px; isolation: isolate; overflow: hidden; color: var(--paper); background: var(--blue); }
.scene { position: absolute; inset: 0; overflow: hidden; z-index: -1; }
#stage { display: block; width: 100%; height: 100%; }
.grain { position: absolute; inset: 0; pointer-events: none; opacity: .22; mix-blend-mode: soft-light; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' opacity='.6' filter='url(%23n)'/%3E%3C/svg%3E"); }
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.intro {
  position: absolute;
  left: clamp(22px, 6vw, 118px);
  top: clamp(116px, 17vh, 168px);
  max-width: 60vw;
  z-index: 4;
}

.hand {
  margin: 0 0 10px;
  padding-left: calc(var(--badge) + var(--gap));
  font-family: "Kaiti SC", STKaiti, KaiTi, "Songti SC", cursive;
  transform: rotate(-2deg);
  transform-origin: left center;
  font-size: clamp(17px, 1.55vw, 26px);
  font-weight: 500;
  letter-spacing: 0.01em;
  color: #ffffff;
  opacity: 0.94;
  text-shadow: 0 1px 0 rgba(20, 20, 120, 0.25);
}

.byline {
  margin: 0 0 clamp(24px, 4vh, 42px);
  padding-left: calc(var(--badge) + var(--gap));
  font-size: clamp(12px, 1.1vw, 15px);
  letter-spacing: 0.06em;
  color: var(--menu);
}

.item-copy {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.menu {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: clamp(6px, 1.5vh, 18px);
}

.item {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--gap);
  padding: 0.06em 0;
  font-size: var(--label);
  text-decoration: none;
  color: var(--menu);
  -webkit-tap-highlight-color: transparent;
}

.label {
  position: relative;
  z-index: 2;
  font-size: 1em;
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.012em;
  transition: color 0.28s ease;
}

.num {
  position: relative;
  z-index: 2;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: var(--badge);
  height: var(--badge);
  border: 1.4px solid currentColor;
  border-radius: 50%;
  font-family: "Iowan Old Style", Georgia, serif;
  font-size: calc(var(--badge) * 0.46);
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1;
  padding-top: 0.14em;
  transition: color 0.28s ease, background-color 0.28s ease, border-color 0.28s ease;
}

.item--media .label {
  font-size: 0.64em;
  line-height: 1.5;
}

.blob {
  position: absolute;
  z-index: 1;
  left: calc(var(--badge) + var(--gap) - 0.16em);
  right: -0.26em;
  top: 46%;
  height: calc(100% + 0.16em);
  opacity: 0;
  transform: translateY(-50%) scale(0.86, 0.9);
  transform-origin: 22% 50%;
  transition: opacity 0.26s ease, transform 0.42s cubic-bezier(0.22, 0.9, 0.24, 1);
  pointer-events: none;
}

.blob svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.item:nth-child(odd) .blob { rotate: -0.7deg; }
.item:nth-child(even) .blob { rotate: 0.6deg; }

.item:hover .item-copy,
.item:focus-visible .item-copy,
.item:hover .label,
.item:focus-visible .label {
  color: var(--menu-on);
}

.item:hover .num,
.item:focus-visible .num {
  color: var(--menu-on);
  background-color: var(--paper);
  border-color: var(--paper);
}

.item:hover .blob,
.item:focus-visible .blob {
  opacity: 1;
  transform: translateY(-50%) scale(1, 1);
}

.item:focus-visible { outline: none; }

.item:active .blob {
  transform: translateY(-50%) scale(1.02, 0.96);
}


.hero-bottom { position: absolute; bottom: 36px; left: var(--gutter); right: var(--gutter); display: flex; align-items: center; justify-content: space-between; font-size: 13px; letter-spacing: .08em; }
.scroll-cue { display: flex; align-items: center; gap: 24px; padding: 8px 0; }
.scroll-arrow { font-size: 24px; transition: transform .2s; }
.scroll-cue:hover .scroll-arrow { transform: translateY(5px); }
.hero-note { color: var(--ink); }
.work { background: var(--paper); scroll-margin-top: 0; }
.work-inner { max-width: 1440px; margin: 0 auto; padding: 58px var(--gutter) 0; }
.work-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; padding-bottom: 32px; }
.work-heading p { margin: 0; font-size: 16px; }
.work-heading > span { font-size: 12px; color: var(--muted); letter-spacing: .1em; }
.tabs {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  flex-wrap: nowrap;
  width: 100%;
  gap: clamp(26px, 4.2vw, 64px);
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
  scrollbar-width: thin;
}
.tab { flex-shrink: 0; position: relative; padding: 18px 0 22px; background: none; border: 0; border-bottom: 3px solid transparent; color: var(--muted); font-size: clamp(18px, 1.8vw, 25px); cursor: pointer; white-space: nowrap; }
.tab[aria-selected="true"] { border-bottom-color: var(--blue); color: var(--blue); }
.tab:hover { color: var(--blue); }
.tab:focus-visible { outline-offset: -5px; }
.tab-panel { padding: 50px 0 76px; min-width: 0; }
.panel-heading { margin-bottom: 36px; }
h2 { margin: 0 0 13px; font-size: clamp(27px, 2.6vw, 38px); line-height: 1.5; font-weight: 500; letter-spacing: -.03em; }
.panel-heading p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.9; }
h3 { font-weight: 500; }
.product-grid, .media-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.product-card { position: relative; min-width: 0; min-height: 270px; padding: 28px; border: 1px solid var(--line); display: flex; flex-direction: column; justify-content: space-between; gap: 50px; background: rgba(255,255,255,.17); }
.card-number { font-size: 18px; color: var(--blue); }
.product-card h3 { font-size: 23px; line-height: 1.5; margin: 0 0 10px; }
.product-card p { font-size: 13px; color: var(--muted); margin: 0; }
.card-mark { position: absolute; right: 26px; top: 27px; color: var(--muted); font-size: 21px; }
.skill-groups { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 64px; }
.skill-group h3 { margin: 0 0 18px; font-size: 19px; color: var(--blue); }
.skill-group ul { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--ink); }
.skill-group li { border-bottom: 1px solid var(--line); }
.skill-group a { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 23px 0; }
.skill-group strong { display: block; font-size: 19px; font-weight: 500; line-height: 1.6; }
.skill-group small { display: block; margin-top: 6px; font-size: 13px; color: var(--muted); line-height: 1.8; }
.skill-group a > span:last-child { font-size: 23px; }
.skill-group a:hover strong, .text-link:hover, .social-links a:hover { color: var(--blue); }
.cover-placeholder { aspect-ratio: 16/10; display: grid; place-items: center; background: #e9e6df; border: 1px solid var(--line); color: var(--muted); font-size: 14px; letter-spacing: .15em; }
.media-card { min-width: 0; }
.media-date { margin: 22px 0 10px; font-size: 12px; color: var(--muted); }
.media-card h3 { margin: 0 0 10px; font-size: 23px; line-height: 1.5; }
.media-summary { margin: 0; font-size: 14px; line-height: 1.9; color: var(--muted); }
.all-link-row { display: flex; justify-content: flex-end; margin-top: 34px; }
.text-link { display: inline-flex; gap: 24px; padding: 10px 0; border-bottom: 1px solid var(--ink); }
.contact-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: clamp(40px, 8vw, 120px); }
.contact-list { padding: 0; margin: 0; list-style: none; border-top: 1px solid var(--ink); }
.contact-list li { display: flex; align-items: baseline; gap: 24px; padding: 26px 0; border-bottom: 1px solid var(--line); }
.contact-number { font-size: 15px; color: var(--blue); }
.contact-list h3 { margin: 0 0 7px; font-size: 24px; }
.contact-list p { margin: 0; font-size: 13px; color: var(--muted); }
.contact-list li > span:last-child { margin-left: auto; color: var(--muted); font-size: 22px; }
.about { min-width: 0; }
.about h3 { font-size: 23px; margin: 0 0 18px; }
.about > p { font-size: 15px; line-height: 2; color: var(--muted); margin: 0 0 22px; }
.keywords { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin: 0 0 30px; padding: 0; }
.keywords li { padding: 5px 11px; border: 1px solid var(--line); font-size: 12px; }
.social-links { display: flex; flex-wrap: wrap; gap: 24px; }
.social-links a { display: flex; align-items: center; gap: 8px; padding: 8px 0; border-bottom: 1px solid var(--line); font-size: 15px; }
.social-links small { color: var(--muted); font-size: 11px; }
.site-footer { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 28px 0; border-top: 1px solid var(--line); }
.site-footer > a:first-child { font-size: 22px; font-weight: 600; }
.site-footer p, .site-footer > a:last-child { margin: 0; font-size: 12px; color: var(--muted); }
@media (max-width: 760px) {
  .site-header { height: 82px; gap: 20px; }
  .logo { font-size: 24px; }
  .hero-bottom { bottom: 24px; }
  .hero-note { display: none; }
  .work-inner { padding-top: 34px; }
  .work-heading { padding-bottom: 18px; }
  .work-heading p { font-size: 14px; }
  .work-heading > span { display: none; }
  .tabs { gap: 30px; }
  .tab { font-size: 19px; padding: 18px 0; }
  .tab-panel { padding: 32px 0 48px; }
  .panel-heading { margin-bottom: 26px; }
  h2 { font-size: 27px; }
  .product-grid, .media-grid, .skill-groups, .contact-grid { grid-template-columns: minmax(0, 1fr); }
  .product-grid { gap: 16px; }
  .product-card { min-height: 225px; padding: 24px; gap: 36px; }
  .media-grid { gap: 36px; }
  .skill-groups { gap: 36px; }
  .contact-grid { gap: 40px; }
  .site-footer { flex-wrap: wrap; gap: 20px; padding: 24px 0; }
  .site-footer p { display: none; }
}
@media (max-height: 600px) and (min-width: 761px) {
  .site-header { height: 76px; }
  .intro { top: 100px; }
  :root { --label: clamp(30px, 4vw, 52px); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}

@media (max-aspect-ratio: 1/1) and (min-width: 601px) {
  :root { --label: clamp(30px, 5.8vw, 52px); }
}
@media (max-width: 600px) {
  :root { --label: clamp(28px, 7.6vw, 42px); --badge: 18px; --gap: 10px; }
  .intro { left: var(--gutter); top: clamp(104px, 17svh, 144px); width: 59vw; max-width: 59vw; }
  .hand { padding-left: 0; font-size: clamp(19px, 5.3vw, 26px); white-space: nowrap; }
  .byline { padding-left: 0; margin-bottom: 22px; font-size: 11px; color: var(--paper); letter-spacing: .03em; }
  .menu { gap: 10px; }
  .item { width: 100%; min-height: 48px; padding: 8px 10px; color: var(--ink); }
  .item--media .label { font-size: clamp(14px, 4vw, 23px); line-height: 1.5; white-space: nowrap; }
  .item .blob { left: 0; right: 0; top: 50%; height: 100%; opacity: 1; transform: translateY(-50%); }
  .item:hover .blob, .item:focus-visible .blob { transform: translateY(-50%) scale(1.02, 1.04); }
  .item:hover .num, .item:focus-visible .num { border-color: currentColor; }
  .item:focus-visible { outline: 2px solid var(--paper); outline-offset: 2px; }
}

@media (min-width: 601px) {
  #products .product-grid,
  #skills .skill-groups,
  #media .media-grid { grid-template-columns: minmax(0, 1fr); }

  #products .product-grid { gap: 16px; }
  #products .product-card {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    min-height: 124px;
    padding: 24px 28px;
    gap: 24px;
  }
  #products .product-card p { line-height: 1.8; }
  #products .card-mark { position: static; }

  #skills .skill-groups { gap: 36px; }
  #skills .skill-group { min-width: 0; }
  #skills .skill-group a > span:first-child { min-width: 0; }
  #skills .skill-group a > span:last-child { flex-shrink: 0; }

  #media .media-grid { gap: 28px; }
  #media .media-card {
    display: grid;
    grid-template-columns: clamp(280px, 24vw, 320px) minmax(0, 1fr);
    grid-template-rows: auto auto 1fr;
    column-gap: clamp(24px, 3vw, 40px);
    row-gap: 8px;
  }
  #media .cover-placeholder {
    grid-column: 1;
    grid-row: 1 / 4;
    align-self: start;
    aspect-ratio: 16 / 9;
  }
  #media .media-date,
  #media .media-card h3,
  #media .media-summary { grid-column: 2; margin: 0; }
}

/* real media cards */
a.media-card { display: block; color: inherit; text-decoration: none; }
.media-cover { overflow: hidden; padding: 0; }
.media-cover img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .4s ease; }
a.media-card:hover .media-cover img { transform: scale(1.03); }
a.media-card:hover h3 { color: var(--blue, #3a35e0); }
.media-body { min-width: 0; }
.media-body .media-date { margin: 14px 0 6px; }
@media (min-width: 601px) {
  #media .media-body { grid-column: 2; grid-row: 1 / 4; align-self: center; }
  #media .media-body .media-date { margin: 0 0 8px; }
  #media .media-body h3 { margin: 0 0 10px; }
}
.media-cover img { object-position: center 35%; }

/* portrait covers (douyin 3:4) */
#media .media-cover { aspect-ratio: 3 / 4; background: #e9e6df; }
#media .media-cover img { object-fit: contain; object-position: center; }
a.media-card:hover .media-cover img { transform: none; }
@media (min-width: 601px) {
  #media .media-card { grid-template-columns: 200px minmax(0, 1fr); padding-bottom: 28px; border-bottom: 1px solid var(--line); }
  #media .media-body { align-self: center; max-width: 720px; }
  #media .media-body h3 { font-size: 26px; }
  #media .media-summary { font-size: 16px; line-height: 1.9; }
}
@media (max-width: 600px) {
  #media .media-card { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 16px; align-items: center; }
  #media .media-body .media-date { margin: 0 0 4px; }
  #media .media-body h3 { font-size: 18px; margin: 0 0 6px; }
  #media .media-summary { font-size: 13px; line-height: 1.7; }
}

/* no focus frame on panels */
.tab-panel:focus, .tab-panel:focus-visible, [role="tabpanel"]:focus { outline: none !important; box-shadow: none; }

/* glean repo card */
.repo-card { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 40px; align-items: center; padding: 36px; border: 1px solid var(--line); background: rgba(255,255,255,.35); color: inherit; text-decoration: none; transition: border-color .3s, background .3s; }
.repo-card:hover { border-color: var(--blue, #3a35e0); background: rgba(255,255,255,.6); }
.repo-kicker { margin: 0 0 10px; font-size: 13px; letter-spacing: .12em; color: var(--muted); }
.repo-card h3 { margin: 0 0 16px; font-size: 40px; line-height: 1.2; font-weight: 500; }
.repo-card h3 span { font-size: 24px; }
.repo-desc { margin: 0 0 20px; font-size: 16px; line-height: 1.9; color: var(--ink, #1d1a4a); opacity: .85; }
.repo-tags { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 0 0 24px; }
.repo-tags li { padding: 4px 12px; border: 1px solid var(--line); font-size: 13px; }
.repo-link { font-size: 16px; border-bottom: 1px solid currentColor; padding-bottom: 4px; }
.repo-card:hover .repo-link { color: var(--blue, #3a35e0); }
.repo-shot { border: 1px solid var(--line); overflow: hidden; background: #fff; box-shadow: 0 18px 40px -24px rgba(20,20,80,.35); }
.repo-shot img { display: block; width: 100%; height: auto; }
#skills .all-link-row { margin-top: 20px; }
@media (max-width: 600px) {
  .repo-card { grid-template-columns: 1fr; gap: 24px; padding: 22px; }
  .repo-card h3 { font-size: 32px; }
  .repo-desc { font-size: 15px; }
}