:root {
  --bg: #f4f0e8;
  --surface: #e8e1d6;
  --surface-strong: #d4c8b9;
  --ink: #2c2b28;
  --muted: #6e6a61;
  --line: rgba(44, 43, 40, 0.14);
  --sage: #8b9685;
  --blue: #7f8d95;
  --clay: #b18d78;
  --white: #fbfaf7;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family:
    "Noto Sans SC",
    "PingFang SC",
    "Microsoft YaHei",
    Arial,
    sans-serif;
  line-height: 1.65;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 68px;
  padding: 0 48px;
  border-bottom: 1px solid var(--line);
  background: rgba(244, 240, 232, 0.86);
  backdrop-filter: blur(18px);
}

.brand {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.nav {
  display: flex;
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
}

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

.section {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 88px 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
  gap: 56px;
  align-items: end;
  min-height: calc(100vh - 68px);
}

.eyebrow,
.section-kicker {
  margin: 0 0 16px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 26px;
  font-size: clamp(52px, 9vw, 108px);
  line-height: 0.98;
  font-weight: 700;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.15;
}

h3 {
  margin-bottom: 10px;
  font-size: 18px;
}

.intro {
  max-width: 720px;
  color: var(--muted);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
}

.button.primary {
  background: var(--ink);
  color: var(--white);
}

.button.secondary {
  color: var(--ink);
}

.hero-panel {
  display: grid;
  gap: 18px;
  padding: 28px;
  border: 1px solid var(--line);
  background: rgba(251, 250, 247, 0.42);
}

.hero-panel div {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.hero-panel div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.hero-panel span {
  display: block;
}

.number {
  margin-bottom: 4px;
  color: var(--clay);
  font-size: 26px;
  font-weight: 700;
}

.capabilities {
  display: grid;
  grid-template-columns: 0.42fr 1fr;
  gap: 46px;
  border-top: 1px solid var(--line);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.capability-grid article,
.work-card,
.case-card,
.contact-card {
  border: 1px solid var(--line);
  background: rgba(251, 250, 247, 0.5);
}

.ai-section {
  width: 100%;
  max-width: none;
  padding-right: max(20px, calc((100% - 1120px) / 2));
  padding-left: max(20px, calc((100% - 1120px) / 2));
  background:
    linear-gradient(135deg, rgba(127, 141, 149, 0.18), rgba(177, 141, 120, 0.16)),
    var(--surface);
}

.capability-grid article {
  min-height: 160px;
  padding: 24px;
}

.capability-grid p,
.section-heading p,
.work-card p,
.case-card p,
.about-copy,
.contact p,
.contact-lines {
  color: var(--muted);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 34px;
}

.section-heading p {
  max-width: 380px;
  margin-bottom: 0;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.filter {
  min-height: 38px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.filter.is-active,
.filter:hover {
  border-color: var(--sage);
  background: var(--sage);
  color: var(--white);
}

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

.ai-showcase {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  gap: 18px;
}

.work-card {
  overflow: hidden;
}

.ai-feature {
  border: 1px solid var(--line);
  background: rgba(251, 250, 247, 0.56);
}

.ai-feature {
  overflow: hidden;
}

.ai-feature-media {
  aspect-ratio: 16 / 9;
}

.ai-feature-copy {
  padding: 24px;
}

.ai-feature-copy h3 {
  font-size: 28px;
}

.ai-side-list {
  display: grid;
  gap: 18px;
  align-content: start;
}

.media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(139, 150, 133, 0.45), rgba(177, 141, 120, 0.28)),
    var(--surface);
}

.portrait-media {
  aspect-ratio: 9 / 16;
  width: min(100%, 230px);
  margin: 0 auto;
  background: var(--surface-strong);
}

.media img,
.media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.portrait-media img,
.portrait-media video {
  object-fit: cover;
}

.media-label {
  position: absolute;
  left: 14px;
  bottom: 12px;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(44, 43, 40, 0.74);
  color: var(--white);
  font-size: 12px;
}

.work-body,
.case-card {
  padding: 22px;
}

.portrait-card {
  background: rgba(251, 250, 247, 0.42);
}

.meta {
  margin-bottom: 10px;
  color: var(--clay);
  font-size: 13px;
  font-weight: 700;
}

.role {
  font-size: 13px;
}

.muted-section {
  width: 100%;
  max-width: none;
  padding-right: max(20px, calc((100% - 1120px) / 2));
  padding-left: max(20px, calc((100% - 1120px) / 2));
  background: var(--surface);
}

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

.case-card {
  min-height: 260px;
  background: rgba(244, 240, 232, 0.72);
}

.case-card h3 span {
  color: var(--muted);
  font-size: 14px;
  font-weight: 400;
}

.case-cover {
  aspect-ratio: 4 / 3;
  margin: -22px -22px 20px;
  overflow: hidden;
  background: var(--surface-strong);
}

.case-cover img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.case-cover video {
  width: 100%;
  height: 100%;
  background: var(--ink);
  object-fit: contain;
}

.case-video {
  aspect-ratio: 16 / 9;
  background: var(--ink);
}

.case-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-top: 16px;
}

.case-gallery img {
  aspect-ratio: 16 / 9;
  width: 100%;
  background: var(--surface-strong);
  object-fit: contain;
}

.case-note {
  margin-top: 14px;
  font-size: 13px;
}

.case-link {
  display: inline-flex;
  margin-top: 18px;
  color: var(--ink);
  font-weight: 700;
}

.work-link {
  display: inline-flex;
  width: fit-content;
  margin-top: 12px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
}

.work-link:hover {
  border-color: var(--sage);
  background: var(--sage);
  color: var(--white);
}

.about {
  display: grid;
  grid-template-columns: 0.42fr 1fr;
  gap: 46px;
}

.about-copy {
  font-size: 18px;
}

.compact-heading {
  margin-bottom: 20px;
}

.compact-heading h2 {
  font-size: clamp(22px, 3vw, 32px);
}

.contact {
  display: grid;
  grid-template-columns: 0.7fr 1fr;
  gap: 46px;
  align-items: center;
  border-top: 1px solid var(--line);
}

.contact-card {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 24px;
  align-items: center;
  padding: 24px;
}

.qr-placeholder,
.qr-box {
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  border: 1px dashed rgba(44, 43, 40, 0.32);
  background: var(--surface);
  text-align: center;
}

.qr-box {
  border-style: solid;
  padding: 12px;
  background: var(--white);
}

.qr-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.qr-placeholder span,
.qr-placeholder small {
  display: block;
}

.qr-placeholder span {
  font-weight: 700;
}

.qr-placeholder small {
  padding: 0 18px;
  color: var(--muted);
  font-size: 12px;
}

.contact-lines {
  display: grid;
  gap: 8px;
}

.phone {
  width: fit-content;
  margin-bottom: 8px;
  padding: 10px 16px;
  border: 0;
  border-radius: 999px;
  background: var(--ink);
  color: var(--white);
  cursor: pointer;
  font: inherit;
  font-weight: 700;
}

.phone-call {
  width: fit-content;
  color: var(--ink);
  font-weight: 700;
}

.is-hidden {
  display: none;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 900px) {
  .site-header {
    padding: 0 20px;
  }

  .nav {
    gap: 14px;
  }

  .section {
    width: min(100% - 32px, 720px);
    padding: 64px 0;
  }

  .hero,
  .capabilities,
  .about,
  .contact {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 32px;
    min-height: auto;
    padding-top: 72px;
  }

  .work-grid,
  .ai-showcase,
  .case-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .muted-section {
    padding-right: 16px;
    padding-left: 16px;
  }
}

@media (max-width: 620px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
    min-height: auto;
    padding: 18px 16px;
  }

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

  h1 {
    font-size: 52px;
  }

  .intro,
  .about-copy {
    font-size: 16px;
  }

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

  .capability-grid,
  .work-grid,
  .ai-showcase,
  .case-grid,
  .contact-card {
    grid-template-columns: 1fr;
  }

  .footer {
    padding: 24px 16px;
  }
}