:root {
  color-scheme: light;
  --ink: #24302f;
  --muted: #66716f;
  --line: #d9e1de;
  --paper: #fffdf7;
  --soft: #f4f0e7;
  --green: #2f8a6f;
  --red: #d85d4f;
  --yellow: #e8b84a;
  --blue: #4f87c8;
  --shadow: 0 18px 48px rgba(46, 61, 56, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
}

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

button {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 253, 247, 0.92);
  backdrop-filter: blur(14px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1120px, calc(100% - 32px));
  min-height: 72px;
  margin: 0 auto;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
}

.site-nav {
  display: flex;
  gap: 20px;
  color: var(--muted);
  font-size: 15px;
}

.site-nav a:hover {
  color: var(--ink);
}

main {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 460px);
  align-items: center;
  min-height: calc(100vh - 72px);
  padding: 64px 0;
  gap: 56px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 8px;
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 8em;
  margin-bottom: 18px;
  font-size: clamp(44px, 8vw, 92px);
  line-height: 1.04;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: 30px;
  line-height: 1.2;
}

.hero-text {
  max-width: 580px;
  color: var(--muted);
  font-size: 20px;
}

.primary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: #fff;
  font-weight: 700;
}

.hero-board {
  position: relative;
  min-height: 480px;
}

.paper {
  position: absolute;
  border: 10px solid #fff;
  box-shadow: var(--shadow);
}

.paper-a {
  inset: 18px 68px auto auto;
  width: 260px;
  height: 330px;
  background:
    radial-gradient(circle at 66% 24%, var(--yellow) 0 36px, transparent 37px),
    linear-gradient(135deg, transparent 42%, var(--green) 43% 58%, transparent 59%),
    linear-gradient(160deg, #f7d6c5, #f7efe1);
  transform: rotate(6deg);
}

.paper-b {
  left: 18px;
  bottom: 28px;
  width: 300px;
  height: 240px;
  background:
    linear-gradient(140deg, transparent 48%, var(--red) 49% 62%, transparent 63%),
    radial-gradient(circle at 28% 34%, var(--blue) 0 34px, transparent 35px),
    #f5efe6;
  transform: rotate(-8deg);
}

.paper-c {
  right: 0;
  bottom: 58px;
  width: 210px;
  height: 210px;
  background:
    linear-gradient(45deg, var(--green) 0 24%, transparent 25%),
    linear-gradient(135deg, var(--yellow) 0 26%, transparent 27%),
    #fff3d9;
  transform: rotate(12deg);
}

.toolbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  padding: 20px 0 24px;
  gap: 20px;
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-button {
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--muted);
  cursor: pointer;
}

.filter-button.is-active {
  border-color: var(--ink);
  background: var(--ink);
  color: #fff;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.work-card {
  min-width: 0;
}

.work-card.is-hidden {
  display: none;
}

.work-item {
  display: grid;
  width: 100%;
  min-height: 340px;
  padding: 0;
  border: 1px solid var(--line);
  background: #fff;
  color: inherit;
  text-align: left;
}

.work-art {
  display: block;
  min-height: 238px;
  border-bottom: 1px solid var(--line);
}

.art-sun {
  background:
    radial-gradient(circle at 68% 30%, var(--yellow) 0 42px, transparent 43px),
    linear-gradient(135deg, transparent 40%, var(--red) 41% 54%, transparent 55%),
    #e6f0e7;
}

.art-street {
  background:
    linear-gradient(90deg, transparent 20%, var(--green) 21% 35%, transparent 36%),
    radial-gradient(circle at 65% 55%, var(--red) 0 44px, transparent 45px),
    #fff2cf;
}

.art-cloud {
  background:
    radial-gradient(circle at 34% 42%, #fff 0 40px, transparent 41px),
    radial-gradient(circle at 48% 38%, #fff 0 50px, transparent 51px),
    radial-gradient(circle at 62% 45%, #fff 0 38px, transparent 39px),
    linear-gradient(#9dc6e8, #e9f4fb);
}

.art-garden {
  background:
    radial-gradient(circle at 30% 62%, var(--green) 0 44px, transparent 45px),
    radial-gradient(circle at 58% 48%, var(--yellow) 0 34px, transparent 35px),
    radial-gradient(circle at 72% 66%, var(--red) 0 38px, transparent 39px),
    #f4ead8;
}

.art-city {
  background:
    linear-gradient(to top, var(--blue) 0 38%, transparent 39%),
    linear-gradient(90deg, var(--yellow) 0 24%, transparent 25% 38%, var(--green) 39% 62%, transparent 63%),
    #f7d9cc;
}

.art-moon {
  background:
    radial-gradient(circle at 68% 28%, #fff6c7 0 42px, transparent 43px),
    linear-gradient(145deg, var(--blue), #2f4d73);
}

.work-meta {
  display: grid;
  gap: 4px;
  padding: 18px;
}

.work-meta strong {
  font-size: 20px;
}

.work-meta small {
  color: var(--muted);
}

.site-footer {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 56px 0 36px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.site-footer p {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 6px;
}

.site-footer a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (max-width: 820px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 0;
  }

  .site-nav {
    width: 100%;
    justify-content: space-between;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: 0;
    padding: 44px 0 36px;
    gap: 24px;
  }

  .hero-board {
    min-height: 330px;
  }

  .paper-a {
    right: 28px;
    width: 210px;
    height: 260px;
  }

  .paper-b {
    width: 230px;
    height: 190px;
  }

  .paper-c {
    width: 160px;
    height: 160px;
  }

  .toolbar {
    grid-template-columns: 1fr;
  }

  .toolbar {
    display: grid;
    align-items: start;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  main,
  .header-inner,
  .site-footer {
    width: min(100% - 24px, 1120px);
  }

  .brand small {
    display: none;
  }

  .hero-text {
    font-size: 16px;
  }

  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .work-item {
    min-height: 300px;
  }

  .work-art {
    min-height: 210px;
  }
}